device. This is useful to ensure auto probing won't
match the driver to the device. For example:
# echo "046d c315" > /sys/bus/usb/drivers/foo/remove_id
+
+What: /sys/bus/usb/device/.../avoid_reset
+Date: December 2009
+Contact: Oliver Neukum <oliver@neukum.org>
+Description:
+ Writing 1 to this file tells the kernel that this
+ device will morph into another mode when it is reset.
+ Drivers will not use reset for error handling for
+ such devices.
+Users:
+ usb_modeswitch
'K' all linux/kd.h
'L' 00-1F linux/loop.h conflict!
'L' 10-1F drivers/scsi/mpt2sas/mpt2sas_ctl.h conflict!
-'L' 20-2F linux/usb/vstusb.h
'L' E0-FF linux/ppdd.h encrypted disk device driver
<http://linux01.gwdg.de/~alatham/ppdd.html>
'M' all linux/soundcard.h conflict!
- the Crystal LAN (CS8900/20-based) Ethernet ISA adapter driver
cxacru.txt
- Conexant AccessRunner USB ADSL Modem
+cxacru-cf.py
+ - Conexant AccessRunner USB ADSL Modem configuration file parser
de4x5.txt
- the Digital EtherWORKS DE4?? and DE5?? PCI Ethernet driver
decnet.txt
--- /dev/null
+#!/usr/bin/env python
+# Copyright 2009 Simon Arlott
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# Usage: cxacru-cf.py < cxacru-cf.bin
+# Output: values string suitable for the sysfs adsl_config attribute
+#
+# Warning: cxacru-cf.bin with MD5 hash cdbac2689969d5ed5d4850f117702110
+# contains mis-aligned values which will stop the modem from being able
+# to make a connection. If the first and last two bytes are removed then
+# the values become valid, but the modulation will be forced to ANSI
+# T1.413 only which may not be appropriate.
+#
+# The original binary format is a packed list of le32 values.
+
+import sys
+import struct
+
+i = 0
+while True:
+ buf = sys.stdin.read(4)
+
+ if len(buf) == 0:
+ break
+ elif len(buf) != 4:
+ sys.stdout.write("\n")
+ sys.stderr.write("Error: read {0} not 4 bytes\n".format(len(buf)))
+ sys.exit(1)
+
+ if i > 0:
+ sys.stdout.write(" ")
+ sys.stdout.write("{0:x}={1}".format(i, struct.unpack("<I", buf)[0]))
+ i += 1
+
+sys.stdout.write("\n")
module loaded, the device will sometimes stop responding after unloading the
driver and it is necessary to unplug/remove power to the device to fix this.
+Note: support for cxacru-cf.bin has been removed. It was not loaded correctly
+so it had no effect on the device configuration. Fixing it could have stopped
+existing devices working when an invalid configuration is supplied.
+
+There is a script cxacru-cf.py to convert an existing file to the sysfs form.
+
Detected devices will appear as ATM devices named "cxacru". In /sys/class/atm/
these are directories named cxacruN where N is the device number. A symlink
named device points to the USB interface device's directory which contains
* adsl_headend_environment
Information about the remote headend.
+* adsl_config
+ Configuration writing interface.
+ Write parameters in hexadecimal format <index>=<value>,
+ separated by whitespace, e.g.:
+ "1=0 a=5"
+ Up to 7 parameters at a time will be sent and the modem will restart
+ the ADSL connection when any value is set. These are logged for future
+ reference.
+
* downstream_attenuation (dB)
* downstream_bits_per_frame
* downstream_rate (kbps)
* mac_address
* modulation
+ "" (when not connected)
"ANSI T1.413"
"ITU-T G.992.1 (G.DMT)"
"ITU-T G.992.2 (G.LITE)"
-EFBIG Host controller driver can't schedule that many ISO frames.
--EPIPE Specified endpoint is stalled. For non-control endpoints,
- reset this status with usb_clear_halt().
+-EPIPE The pipe type specified in the URB doesn't match the
+ endpoint's actual type.
-EMSGSIZE (a) endpoint maxpacket size is zero; it is not usable
in the current interface altsetting.
-EHOSTUNREACH URB was rejected because the device is suspended.
+-ENOEXEC A control URB doesn't contain a Setup packet.
+
**************************************************************************
* Error codes returned by in urb->status *
Alan Stern <stern@rowland.harvard.edu>
- November 10, 2009
+ December 11, 2009
information about system PM).
Note: Dynamic PM support for USB is present only if the kernel was
-built with CONFIG_USB_SUSPEND enabled. System PM support is present
-only if the kernel was built with CONFIG_SUSPEND or CONFIG_HIBERNATION
-enabled.
+built with CONFIG_USB_SUSPEND enabled (which depends on
+CONFIG_PM_RUNTIME). System PM support is present only if the kernel
+was built with CONFIG_SUSPEND or CONFIG_HIBERNATION enabled.
What is Remote Wakeup?
also change the idle-delay time; 2 seconds is not the best choice for
every device.
+If a driver knows that its device has proper suspend/resume support,
+it can enable autosuspend all by itself. For example, the video
+driver for a laptop's webcam might do this, since these devices are
+rarely used and so should normally be autosuspended.
+
Sometimes it turns out that even when a device does work okay with
autosuspend there are still problems. For example, there are
experimental patches adding autosuspend support to the usbhid driver,
void usb_autopm_get_interface_no_resume(struct usb_interface *intf);
void usb_autopm_put_interface_no_suspend(struct usb_interface *intf);
-The functions work by maintaining a counter in the usb_interface
-structure. When intf->pm_usage_count is > 0 then the interface is
-deemed to be busy, and the kernel will not autosuspend the interface's
-device. When intf->pm_usage_count is <= 0 then the interface is
-considered to be idle, and the kernel may autosuspend the device.
+The functions work by maintaining a usage counter in the
+usb_interface's embedded device structure. When the counter is > 0
+then the interface is deemed to be busy, and the kernel will not
+autosuspend the interface's device. When the usage counter is = 0
+then the interface is considered to be idle, and the kernel may
+autosuspend the device.
-(There is a similar pm_usage_count field in struct usb_device,
+(There is a similar usage counter field in struct usb_device,
associated with the device itself rather than any of its interfaces.
-This field is used only by the USB core.)
-
-Drivers must not modify intf->pm_usage_count directly; its value
-should be changed only be using the functions listed above. Drivers
-are responsible for insuring that the overall change to pm_usage_count
-during their lifetime balances out to 0 (it may be necessary for the
-disconnect method to call usb_autopm_put_interface() one or more times
-to fulfill this requirement). The first two routines use the PM mutex
-in struct usb_device for mutual exclusion; drivers using the async
-routines are responsible for their own synchronization and mutual
-exclusion.
-
- usb_autopm_get_interface() increments pm_usage_count and
- attempts an autoresume if the new value is > 0 and the
- device is suspended.
-
- usb_autopm_put_interface() decrements pm_usage_count and
- attempts an autosuspend if the new value is <= 0 and the
- device isn't suspended.
+This counter is used only by the USB core.)
+
+Drivers need not be concerned about balancing changes to the usage
+counter; the USB core will undo any remaining "get"s when a driver
+is unbound from its interface. As a corollary, drivers must not call
+any of the usb_autopm_* functions after their diconnect() routine has
+returned.
+
+Drivers using the async routines are responsible for their own
+synchronization and mutual exclusion.
+
+ usb_autopm_get_interface() increments the usage counter and
+ does an autoresume if the device is suspended. If the
+ autoresume fails, the counter is decremented back.
+
+ usb_autopm_put_interface() decrements the usage counter and
+ attempts an autosuspend if the new value is = 0.
usb_autopm_get_interface_async() and
usb_autopm_put_interface_async() do almost the same things as
- their non-async counterparts. The differences are: they do
- not acquire the PM mutex, and they use a workqueue to do their
+ their non-async counterparts. The big difference is that they
+ use a workqueue to do the resume or suspend part of their
jobs. As a result they can be called in an atomic context,
such as an URB's completion handler, but when they return the
- device will not generally not yet be in the desired state.
+ device will generally not yet be in the desired state.
usb_autopm_get_interface_no_resume() and
usb_autopm_put_interface_no_suspend() merely increment or
- decrement the pm_usage_count value; they do not attempt to
- carry out an autoresume or an autosuspend. Hence they can be
- called in an atomic context.
+ decrement the usage counter; they do not attempt to carry out
+ an autoresume or an autosuspend. Hence they can be called in
+ an atomic context.
-The conventional usage pattern is that a driver calls
+The simplest usage pattern is that a driver calls
usb_autopm_get_interface() in its open routine and
-usb_autopm_put_interface() in its close or release routine. But
-other patterns are possible.
+usb_autopm_put_interface() in its close or release routine. But other
+patterns are possible.
The autosuspend attempts mentioned above will often fail for one
reason or another. For example, the power/level attribute might be
set to "on", or another interface in the same device might not be
idle. This is perfectly normal. If the reason for failure was that
-the device hasn't been idle for long enough, a delayed workqueue
-routine is automatically set up to carry out the operation when the
-autosuspend idle-delay has expired.
+the device hasn't been idle for long enough, a timer is scheduled to
+carry out the operation automatically when the autosuspend idle-delay
+has expired.
Autoresume attempts also can fail, although failure would mean that
the device is no longer present or operating properly. Unlike
-autosuspend, there's no delay for an autoresume.
+autosuspend, there's no idle-delay for an autoresume.
Other parts of the driver interface
-----------------------------------
+Drivers can enable autosuspend for their devices by calling
+
+ usb_enable_autosuspend(struct usb_device *udev);
+
+in their probe() routine, if they know that the device is capable of
+suspending and resuming correctly. This is exactly equivalent to
+writing "auto" to the device's power/level attribute. Likewise,
+drivers can disable autosuspend by calling
+
+ usb_disable_autosuspend(struct usb_device *udev);
+
+This is exactly the same as writing "on" to the power/level attribute.
+
Sometimes a driver needs to make sure that remote wakeup is enabled
during autosuspend. For example, there's not much point
autosuspending a keyboard if the user can't cause the keyboard to do a
Normally a driver would set this flag in its probe method, at which
time the device is guaranteed not to be autosuspended.)
-The synchronous usb_autopm_* routines have to run in a sleepable
-process context; they must not be called from an interrupt handler or
-while holding a spinlock. In fact, the entire autosuspend mechanism
-is not well geared toward interrupt-driven operation. However there
-is one thing a driver can do in an interrupt handler:
+If a driver does its I/O asynchronously in interrupt context, it
+should call usb_autopm_get_interface_async() before starting output and
+usb_autopm_put_interface_async() when the output queue drains. When
+it receives an input event, it should call
usb_mark_last_busy(struct usb_device *udev);
-This sets udev->last_busy to the current time. udev->last_busy is the
-field used for idle-delay calculations; updating it will cause any
-pending autosuspend to be moved back. The usb_autopm_* routines will
-also set the last_busy field to the current time.
-
-Calling urb_mark_last_busy() from within an URB completion handler is
-subject to races: The kernel may have just finished deciding the
-device has been idle for long enough but not yet gotten around to
-calling the driver's suspend method. The driver would have to be
-responsible for synchronizing its suspend method with its URB
-completion handler and causing the autosuspend to fail with -EBUSY if
-an URB had completed too recently.
+in the event handler. This sets udev->last_busy to the current time.
+udev->last_busy is the field used for idle-delay calculations;
+updating it will cause any pending autosuspend to be moved back. Most
+of the usb_autopm_* routines will also set the last_busy field to the
+current time.
+
+Asynchronous operation is always subject to races. For example, a
+driver may call one of the usb_autopm_*_interface_async() routines at
+a time when the core has just finished deciding the device has been
+idle for long enough but not yet gotten around to calling the driver's
+suspend method. The suspend method must be responsible for
+synchronizing with the output request routine and the URB completion
+handler; it should cause autosuspends to fail with -EBUSY if the
+driver needs to use the device.
External suspend calls should never be allowed to fail in this way,
only autosuspend calls. The driver can tell them apart by checking
method; this bit will be set for internal PM events (autosuspend) and
clear for external PM events.
-Many of the ingredients in the autosuspend framework are oriented
-towards interfaces: The usb_interface structure contains the
-pm_usage_cnt field, and the usb_autopm_* routines take an interface
-pointer as their argument. But somewhat confusingly, a few of the
-pieces (i.e., usb_mark_last_busy()) use the usb_device structure
-instead. Drivers need to keep this straight; they can call
-interface_to_usbdev() to find the device structure for a given
-interface.
-
- Locking requirements
- --------------------
+ Mutual exclusion
+ ----------------
-All three suspend/resume methods are always called while holding the
-usb_device's PM mutex. For external events -- but not necessarily for
-autosuspend or autoresume -- the device semaphore (udev->dev.sem) will
-also be held. This implies that external suspend/resume events are
-mutually exclusive with calls to probe, disconnect, pre_reset, and
-post_reset; the USB core guarantees that this is true of internal
-suspend/resume events as well.
+For external events -- but not necessarily for autosuspend or
+autoresume -- the device semaphore (udev->dev.sem) will be held when a
+suspend or resume method is called. This implies that external
+suspend/resume events are mutually exclusive with calls to probe,
+disconnect, pre_reset, and post_reset; the USB core guarantees that
+this is true of autosuspend/autoresume events as well.
If a driver wants to block all suspend/resume calls during some
-critical section, it can simply acquire udev->pm_mutex. Note that
-calls to resume may be triggered indirectly. Block IO due to memory
-allocations can make the vm subsystem resume a device. Thus while
-holding this lock you must not allocate memory with GFP_KERNEL or
-GFP_NOFS.
-
-Alternatively, if the critical section might call some of the
-usb_autopm_* routines, the driver can avoid deadlock by doing:
-
- down(&udev->dev.sem);
- rc = usb_autopm_get_interface(intf);
-
-and at the end of the critical section:
-
- if (!rc)
- usb_autopm_put_interface(intf);
- up(&udev->dev.sem);
-
-Holding the device semaphore will block all external PM calls, and the
-usb_autopm_get_interface() will prevent any internal PM calls, even if
-it fails. (Exercise: Why?)
-
-The rules for locking order are:
-
- Never acquire any device semaphore while holding any PM mutex.
-
- Never acquire udev->pm_mutex while holding the PM mutex for
- a device that isn't a descendant of udev.
-
-In other words, PM mutexes should only be acquired going up the device
-tree, and they should be acquired only after locking all the device
-semaphores you need to hold. These rules don't matter to drivers very
-much; they usually affect just the USB core.
-
-Still, drivers do need to be careful. For example, many drivers use a
-private mutex to synchronize their normal I/O activities with their
-disconnect method. Now if the driver supports autosuspend then it
-must call usb_autopm_put_interface() from somewhere -- maybe from its
-close method. It should make the call while holding the private mutex,
-since a driver shouldn't call any of the usb_autopm_* functions for an
-interface from which it has been unbound.
-
-But the usb_autpm_* routines always acquire the device's PM mutex, and
-consequently the locking order has to be: private mutex first, PM
-mutex second. Since the suspend method is always called with the PM
-mutex held, it mustn't try to acquire the private mutex. It has to
-synchronize with the driver's I/O activities in some other way.
+critical section, the best way is to lock the device and call
+usb_autopm_get_interface() (and do the reverse at the end of the
+critical section). Holding the device semaphore will block all
+external PM calls, and the usb_autopm_get_interface() will prevent any
+internal PM calls, even if it fails. (Exercise: Why?)
Interaction between dynamic PM and system PM
Dynamic power management and system power management can interact in
a couple of ways.
-Firstly, a device may already be manually suspended or autosuspended
-when a system suspend occurs. Since system suspends are supposed to
-be as transparent as possible, the device should remain suspended
-following the system resume. The 2.6.23 kernel obeys this principle
-for manually suspended devices but not for autosuspended devices; they
-do get resumed when the system wakes up. (Presumably they will be
-autosuspended again after their idle-delay time expires.) In later
-kernels this behavior will be fixed.
-
-(There is an exception. If a device would undergo a reset-resume
-instead of a normal resume, and the device is enabled for remote
-wakeup, then the reset-resume takes place even if the device was
-already suspended when the system suspend began. The justification is
-that a reset-resume is a kind of remote-wakeup event. Or to put it
-another way, a device which needs a reset won't be able to generate
-normal remote-wakeup signals, so it ought to be resumed immediately.)
+Firstly, a device may already be autosuspended when a system suspend
+occurs. Since system suspends are supposed to be as transparent as
+possible, the device should remain suspended following the system
+resume. But this theory may not work out well in practice; over time
+the kernel's behavior in this regard has changed.
Secondly, a dynamic power-management event may occur as a system
suspend is underway. The window for this is short, since system
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
+CONFIG_PHONET=y
+# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_USB_GADGET_LH7A40X is not set
# CONFIG_USB_GADGET_OMAP is not set
# CONFIG_USB_GADGET_PXA25X is not set
+# CONFIG_USB_GADGET_R8A66597 is not set
# CONFIG_USB_GADGET_PXA27X is not set
-# CONFIG_USB_GADGET_S3C2410 is not set
+# CONFIG_USB_GADGET_S3C_HSOTG is not set
# CONFIG_USB_GADGET_IMX is not set
+# CONFIG_USB_GADGET_S3C2410 is not set
# CONFIG_USB_GADGET_M66592 is not set
# CONFIG_USB_GADGET_AMD5536UDC is not set
# CONFIG_USB_GADGET_FSL_QE is not set
# CONFIG_USB_GADGET_CI13XXX is not set
# CONFIG_USB_GADGET_NET2280 is not set
# CONFIG_USB_GADGET_GOKU is not set
+# CONFIG_USB_GADGET_LANGWELL is not set
# CONFIG_USB_GADGET_DUMMY_HCD is not set
CONFIG_USB_GADGET_DUALSPEED=y
CONFIG_USB_ZERO=m
# CONFIG_USB_ZERO_HNPTEST is not set
+# CONFIG_USB_AUDIO is not set
# CONFIG_USB_ETH is not set
# CONFIG_USB_GADGETFS is not set
CONFIG_USB_FILE_STORAGE=m
# CONFIG_USB_FILE_STORAGE_TEST is not set
+# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
+CONFIG_USB_G_NOKIA=m
+# CONFIG_USB_G_MULTI is not set
#
# OTG and related infrastructure
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+#include <linux/dma-mapping.h>
#include <mach/irqs.h>
#include <mach/hardware.h>
.num_resources = ARRAY_SIZE(mxc_fb),
.resource = mxc_fb,
.dev = {
- .coherent_dma_mask = 0xFFFFFFFF,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
},
};
},
};
-static u64 mxc_sdhc1_dmamask = 0xffffffffUL;
+static u64 mxc_sdhc1_dmamask = DMA_BIT_MASK(32);
struct platform_device mxc_sdhc_device0 = {
- .name = "mxc-mmc",
- .id = 0,
- .dev = {
- .dma_mask = &mxc_sdhc1_dmamask,
- .coherent_dma_mask = 0xffffffff,
- },
- .num_resources = ARRAY_SIZE(mxc_sdhc1_resources),
- .resource = mxc_sdhc1_resources,
+ .name = "mxc-mmc",
+ .id = 0,
+ .dev = {
+ .dma_mask = &mxc_sdhc1_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .num_resources = ARRAY_SIZE(mxc_sdhc1_resources),
+ .resource = mxc_sdhc1_resources,
};
static struct resource mxc_sdhc2_resources[] = {
},
};
-static u64 mxc_sdhc2_dmamask = 0xffffffffUL;
+static u64 mxc_sdhc2_dmamask = DMA_BIT_MASK(32);
struct platform_device mxc_sdhc_device1 = {
- .name = "mxc-mmc",
- .id = 1,
- .dev = {
- .dma_mask = &mxc_sdhc2_dmamask,
- .coherent_dma_mask = 0xffffffff,
- },
- .num_resources = ARRAY_SIZE(mxc_sdhc2_resources),
- .resource = mxc_sdhc2_resources,
+ .name = "mxc-mmc",
+ .id = 1,
+ .dev = {
+ .dma_mask = &mxc_sdhc2_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .num_resources = ARRAY_SIZE(mxc_sdhc2_resources),
+ .resource = mxc_sdhc2_resources,
};
#ifdef CONFIG_MACH_MX27
},
};
-static u64 otg_dmamask = 0xffffffffUL;
+static u64 otg_dmamask = DMA_BIT_MASK(32);
/* OTG gadget device */
struct platform_device mxc_otg_udc_device = {
.id = -1,
.dev = {
.dma_mask = &otg_dmamask,
- .coherent_dma_mask = 0xffffffffUL,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = otg_resources,
.num_resources = ARRAY_SIZE(otg_resources),
.name = "mxc-ehci",
.id = 0,
.dev = {
- .coherent_dma_mask = 0xffffffff,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &otg_dmamask,
},
.resource = otg_resources,
/* USB host 1 */
-static u64 usbh1_dmamask = 0xffffffffUL;
+static u64 usbh1_dmamask = DMA_BIT_MASK(32);
static struct resource mxc_usbh1_resources[] = {
{
.name = "mxc-ehci",
.id = 1,
.dev = {
- .coherent_dma_mask = 0xffffffff,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &usbh1_dmamask,
},
.resource = mxc_usbh1_resources,
};
/* USB host 2 */
-static u64 usbh2_dmamask = 0xffffffffUL;
+static u64 usbh2_dmamask = DMA_BIT_MASK(32);
static struct resource mxc_usbh2_resources[] = {
{
.name = "mxc-ehci",
.id = 2,
.dev = {
- .coherent_dma_mask = 0xffffffff,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &usbh2_dmamask,
},
.resource = mxc_usbh2_resources,
{
return mxc_gpio_init(imx_gpio_ports, ARRAY_SIZE(imx_gpio_ports));
}
+
+#ifdef CONFIG_MACH_MX21
+static struct resource mx21_usbhc_resources[] = {
+ {
+ .start = USBOTG_BASE_ADDR,
+ .end = USBOTG_BASE_ADDR + 0x1FFF,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = MXC_INT_USBHOST,
+ .end = MXC_INT_USBHOST,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device mx21_usbhc_device = {
+ .name = "imx21-hcd",
+ .id = 0,
+ .dev = {
+ .dma_mask = &mx21_usbhc_device.dev.coherent_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .num_resources = ARRAY_SIZE(mx21_usbhc_resources),
+ .resource = mx21_usbhc_resources,
+};
+#endif
+
extern struct platform_device mxc_spi_device0;
extern struct platform_device mxc_spi_device1;
extern struct platform_device mxc_spi_device2;
+extern struct platform_device mx21_usbhc_device;
extern struct platform_device imx_ssi_device0;
extern struct platform_device imx_ssi_device1;
--- /dev/null
+/*
+ * Copyright (C) 2009 Martin Fuzzey <mfuzzey@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ASM_ARCH_MX21_USBH
+#define __ASM_ARCH_MX21_USBH
+
+enum mx21_usbh_xcvr {
+ /* Values below as used by hardware (HWMODE register) */
+ MX21_USBXCVR_TXDIF_RXDIF = 0,
+ MX21_USBXCVR_TXDIF_RXSE = 1,
+ MX21_USBXCVR_TXSE_RXDIF = 2,
+ MX21_USBXCVR_TXSE_RXSE = 3,
+};
+
+struct mx21_usbh_platform_data {
+ enum mx21_usbh_xcvr host_xcvr; /* tranceiver mode host 1,2 ports */
+ enum mx21_usbh_xcvr otg_xcvr; /* tranceiver mode otg (as host) port */
+ u16 enable_host1:1,
+ enable_host2:1,
+ enable_otg_host:1, /* enable "OTG" port (as host) */
+ host1_xcverless:1, /* traceiverless host1 port */
+ host1_txenoe:1, /* output enable host1 transmit enable */
+ otg_ext_xcvr:1, /* external tranceiver for OTG port */
+ unused:10;
+};
+
+#endif /* __ASM_ARCH_MX21_USBH */
ARRAY_SIZE(usba0_resource)))
goto out_free_pdev;
- if (data)
+ if (data) {
usba_data.pdata.vbus_pin = data->vbus_pin;
- else
+ usba_data.pdata.vbus_pin_inverted = data->vbus_pin_inverted;
+ } else {
usba_data.pdata.vbus_pin = -EINVAL;
+ usba_data.pdata.vbus_pin_inverted = -EINVAL;
+ }
data = &usba_data.pdata;
data->num_ep = ARRAY_SIZE(at32_usba_ep);
EXPORT_SYMBOL_GPL(tty_buffer_request_room);
/**
- * tty_insert_flip_string - Add characters to the tty buffer
+ * tty_insert_flip_string_fixed_flag - Add characters to the tty buffer
* @tty: tty structure
* @chars: characters
+ * @flag: flag value for each character
* @size: size
*
* Queue a series of bytes to the tty buffering. All the characters
* Locking: Called functions may take tty->buf.lock
*/
-int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars,
- size_t size)
+int tty_insert_flip_string_fixed_flag(struct tty_struct *tty,
+ const unsigned char *chars, char flag, size_t size)
{
int copied = 0;
do {
if (unlikely(space == 0))
break;
memcpy(tb->char_buf_ptr + tb->used, chars, space);
- memset(tb->flag_buf_ptr + tb->used, TTY_NORMAL, space);
+ memset(tb->flag_buf_ptr + tb->used, flag, space);
tb->used += space;
copied += space;
chars += space;
} while (unlikely(size > copied));
return copied;
}
-EXPORT_SYMBOL(tty_insert_flip_string);
+EXPORT_SYMBOL(tty_insert_flip_string_fixed_flag);
/**
* tty_insert_flip_string_flags - Add characters to the tty buffer
static int hiddev_open(struct inode *inode, struct file *file)
{
struct hiddev_list *list;
- int res;
+ int res, i;
- int i = iminor(inode) - HIDDEV_MINOR_BASE;
+ lock_kernel();
+ i = iminor(inode) - HIDDEV_MINOR_BASE;
if (i >= HIDDEV_MINORS || i < 0 || !hiddev_table[i])
return -ENODEV;
usbhid_open(hid);
}
+ unlock_kernel();
return 0;
bail:
file->private_data = NULL;
kfree(list);
+ unlock_kernel();
return res;
}
{
int devnum = iminor(inode);
pdabusb_t s;
+ int r;
if (devnum < DABUSB_MINOR || devnum >= (DABUSB_MINOR + NRDABUSB))
return -EIO;
+ lock_kernel();
s = &dabusb[devnum - DABUSB_MINOR];
dbg("dabusb_open");
msleep_interruptible(500);
if (signal_pending (current)) {
+ unlock_kernel();
return -EAGAIN;
}
mutex_lock(&s->mutex);
if (usb_set_interface (s->usbdev, _DABUSB_IF, 1) < 0) {
mutex_unlock(&s->mutex);
dev_err(&s->usbdev->dev, "set_interface failed\n");
+ unlock_kernel();
return -EINVAL;
}
s->opened = 1;
file->f_pos = 0;
file->private_data = s;
- return nonseekable_open(inode, file);
+ r = nonseekable_open(inode, file);
+ unlock_kernel();
+ return r;
}
static int dabusb_release (struct inode *inode, struct file *file)
case USB_SPEED_LOW:
case USB_SPEED_FULL:
case USB_SPEED_HIGH:
- case USB_SPEED_VARIABLE:
+ case USB_SPEED_WIRELESS:
break;
default:
usbip_uerr("speed %d\n", speed);
default y if USB_ARCH_HAS_EHCI
default y if PCMCIA && !M32R # sl811_cs
default y if ARM # SL-811
+ default y if BLACKFIN # SL-811
default y if SUPERH # r8a66597-hcd
default PCI
default y if ARCH_PNX4008 && I2C
default y if MFD_TC6393XB
default y if ARCH_W90X900
+ default y if ARCH_DAVINCI_DA8XX
# PPC:
default y if STB03xxx
default y if PPC_MPC52xx
obj-$(CONFIG_USB_R8A66597_HCD) += host/
obj-$(CONFIG_USB_HWA_HCD) += host/
obj-$(CONFIG_USB_ISP1760_HCD) += host/
+obj-$(CONFIG_USB_IMX21_HCD) += host/
obj-$(CONFIG_USB_C67X00_HCD) += c67x00/
* Copyright (C) 2004 David Woodhouse, Duncan Sands, Roman Kagan
* Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru)
* Copyright (C) 2007 Simon Arlott
+ * Copyright (C) 2009 Simon Arlott
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
#include "usbatm.h"
#define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands, Simon Arlott"
-#define DRIVER_VERSION "0.3"
+#define DRIVER_VERSION "0.4"
#define DRIVER_DESC "Conexant AccessRunner ADSL USB modem driver"
static const char cxacru_driver_name[] = "cxacru";
#define CXACRU_EP_DATA 0x02 /* Bulk in/out */
#define CMD_PACKET_SIZE 64 /* Should be maxpacket(ep)? */
+#define CMD_MAX_CONFIG ((CMD_PACKET_SIZE / 4 - 1) / 2)
/* Addresses */
#define PLLFCLK_ADDR 0x00350068
CM_REQUEST_MAX,
};
+/* commands for interaction with the flash memory
+ *
+ * read: response is the contents of the first 60 bytes of flash memory
+ * write: request contains the 60 bytes of data to write to flash memory
+ * response is the contents of the first 60 bytes of flash memory
+ *
+ * layout: PP PP VV VV MM MM MM MM MM MM ?? ?? SS SS SS SS SS SS SS SS
+ * SS SS SS SS SS SS SS SS 00 00 00 00 00 00 00 00 00 00 00 00
+ * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ *
+ * P: le16 USB Product ID
+ * V: le16 USB Vendor ID
+ * M: be48 MAC Address
+ * S: le16 ASCII Serial Number
+ */
+enum cxacru_cm_flash {
+ CM_FLASH_READ = 0xa1,
+ CM_FLASH_WRITE = 0xa2
+};
+
/* reply codes to the commands above */
enum cxacru_cm_status {
CM_STATUS_UNDEFINED,
static DEVICE_ATTR(_name, S_IWUSR | S_IRUGO, \
cxacru_sysfs_show_##_name, cxacru_sysfs_store_##_name)
+#define CXACRU_SET_INIT(_name) \
+static DEVICE_ATTR(_name, S_IWUSR, \
+ NULL, cxacru_sysfs_store_##_name)
+
#define CXACRU_ATTR_INIT(_value, _type, _name) \
static ssize_t cxacru_sysfs_show_##_name(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
- struct usb_interface *intf = to_usb_interface(dev); \
- struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); \
- struct cxacru_data *instance = usbatm_instance->driver_data; \
+ struct cxacru_data *instance = to_usbatm_driver_data(\
+ to_usb_interface(dev)); \
+\
+ if (instance == NULL) \
+ return -ENODEV; \
+\
return cxacru_sysfs_showattr_##_type(instance->card_info[_value], buf); \
} \
CXACRU__ATTR_INIT(_name)
#define CXACRU_ATTR_CREATE(_v, _t, _name) CXACRU_DEVICE_CREATE_FILE(_name)
#define CXACRU_CMD_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
+#define CXACRU_SET_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
#define CXACRU__ATTR_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
#define CXACRU_ATTR_REMOVE(_v, _t, _name) CXACRU_DEVICE_REMOVE_FILE(_name)
#define CXACRU_CMD_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
+#define CXACRU_SET_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
#define CXACRU__ATTR_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
static ssize_t cxacru_sysfs_showattr_u32(u32 value, char *buf)
static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf)
{
static char *str[] = {
- NULL,
+ "",
"ANSI T1.413",
"ITU-T G.992.1 (G.DMT)",
"ITU-T G.992.2 (G.LITE)"
};
- if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL))
+ if (unlikely(value >= ARRAY_SIZE(str)))
return snprintf(buf, PAGE_SIZE, "%u\n", value);
return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
}
static ssize_t cxacru_sysfs_show_mac_address(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
- struct atm_dev *atm_dev = usbatm_instance->atm_dev;
+ struct cxacru_data *instance = to_usbatm_driver_data(
+ to_usb_interface(dev));
- return snprintf(buf, PAGE_SIZE, "%pM\n", atm_dev->esi);
+ if (instance == NULL || instance->usbatm->atm_dev == NULL)
+ return -ENODEV;
+
+ return snprintf(buf, PAGE_SIZE, "%pM\n",
+ instance->usbatm->atm_dev->esi);
}
static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
- struct cxacru_data *instance = usbatm_instance->driver_data;
- u32 value = instance->card_info[CXINF_LINE_STARTABLE];
-
static char *str[] = { "running", "stopped" };
+ struct cxacru_data *instance = to_usbatm_driver_data(
+ to_usb_interface(dev));
+ u32 value;
+
+ if (instance == NULL)
+ return -ENODEV;
+
+ value = instance->card_info[CXINF_LINE_STARTABLE];
if (unlikely(value >= ARRAY_SIZE(str)))
return snprintf(buf, PAGE_SIZE, "%u\n", value);
return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
- struct cxacru_data *instance = usbatm_instance->driver_data;
+ struct cxacru_data *instance = to_usbatm_driver_data(
+ to_usb_interface(dev));
int ret;
int poll = -1;
char str_cmd[8];
return -EINVAL;
ret = 0;
+ if (instance == NULL)
+ return -ENODEV;
+
if (mutex_lock_interruptible(&instance->adsl_state_serialize))
return -ERESTARTSYS;
if (!strcmp(str_cmd, "stop") || !strcmp(str_cmd, "restart")) {
ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_STOP, NULL, 0, NULL, 0);
if (ret < 0) {
- atm_err(usbatm_instance, "change adsl state:"
+ atm_err(instance->usbatm, "change adsl state:"
" CHIP_ADSL_LINE_STOP returned %d\n", ret);
ret = -EIO;
if (!strcmp(str_cmd, "start") || !strcmp(str_cmd, "restart")) {
ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
if (ret < 0) {
- atm_err(usbatm_instance, "change adsl state:"
+ atm_err(instance->usbatm, "change adsl state:"
" CHIP_ADSL_LINE_START returned %d\n", ret);
ret = -EIO;
return ret;
}
+/* CM_REQUEST_CARD_DATA_GET times out, so no show attribute */
+
+static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct cxacru_data *instance = to_usbatm_driver_data(
+ to_usb_interface(dev));
+ int len = strlen(buf);
+ int ret, pos, num;
+ __le32 data[CMD_PACKET_SIZE / 4];
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EACCES;
+
+ if (instance == NULL)
+ return -ENODEV;
+
+ pos = 0;
+ num = 0;
+ while (pos < len) {
+ int tmp;
+ u32 index;
+ u32 value;
+
+ ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
+ if (ret < 2)
+ return -EINVAL;
+ if (index < 0 || index > 0x7f)
+ return -EINVAL;
+ pos += tmp;
+
+ /* skip trailing newline */
+ if (buf[pos] == '\n' && pos == len-1)
+ pos++;
+
+ data[num * 2 + 1] = cpu_to_le32(index);
+ data[num * 2 + 2] = cpu_to_le32(value);
+ num++;
+
+ /* send config values when data buffer is full
+ * or no more data
+ */
+ if (pos >= len || num >= CMD_MAX_CONFIG) {
+ char log[CMD_MAX_CONFIG * 12 + 1]; /* %02x=%08x */
+
+ data[0] = cpu_to_le32(num);
+ ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET,
+ (u8 *) data, 4 + num * 8, NULL, 0);
+ if (ret < 0) {
+ atm_err(instance->usbatm,
+ "set card data returned %d\n", ret);
+ return -EIO;
+ }
+
+ for (tmp = 0; tmp < num; tmp++)
+ snprintf(log + tmp*12, 13, " %02x=%08x",
+ le32_to_cpu(data[tmp * 2 + 1]),
+ le32_to_cpu(data[tmp * 2 + 2]));
+ atm_info(instance->usbatm, "config%s\n", log);
+ num = 0;
+ }
+ }
+
+ return len;
+}
+
/*
* All device attributes are included in CXACRU_ALL_FILES
* so that the same list can be used multiple times:
CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND, u32, adsl_headend); \
CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND_ENVIRONMENT, u32, adsl_headend_environment); \
CXACRU_ATTR_##_action(CXINF_CONTROLLER_VERSION, u32, adsl_controller_version); \
-CXACRU_CMD_##_action( adsl_state);
+CXACRU_CMD_##_action( adsl_state); \
+CXACRU_SET_##_action( adsl_config);
CXACRU_ALL_FILES(INIT);
len = ret / 4;
for (offb = 0; offb < len; ) {
int l = le32_to_cpu(buf[offb++]);
- if (l > stride || l > (len - offb) / 2) {
+ if (l < 0 || l > stride || l > (len - offb) / 2) {
if (printk_ratelimit())
usb_err(instance->usbatm, "invalid data length from cm %#x: %d\n",
cm, l);
{
struct cxacru_data *instance = usbatm_instance->driver_data;
struct usb_interface *intf = usbatm_instance->usb_intf;
- /*
- struct atm_dev *atm_dev = usbatm_instance->atm_dev;
- */
int ret;
int start_polling = 1;
mutex_unlock(&instance->poll_state_serialize);
mutex_unlock(&instance->adsl_state_serialize);
+ printk(KERN_INFO "%s%d: %s %pM\n", atm_dev->type, atm_dev->number,
+ usbatm_instance->description, atm_dev->esi);
+
if (start_polling)
cxacru_poll_status(&instance->poll_work.work);
return 0;
static void cxacru_upload_firmware(struct cxacru_data *instance,
const struct firmware *fw,
- const struct firmware *bp,
- const struct firmware *cf)
+ const struct firmware *bp)
{
int ret;
- int off;
struct usbatm_data *usbatm = instance->usbatm;
struct usb_device *usb_dev = usbatm->usb_dev;
__le16 signature[] = { usb_dev->descriptor.idVendor,
}
/* Firmware */
+ usb_info(usbatm, "loading firmware\n");
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size);
if (ret) {
usb_err(usbatm, "Firmware upload failed: %d\n", ret);
/* Boot ROM patch */
if (instance->modem_type->boot_rom_patch) {
+ usb_info(usbatm, "loading boot ROM patch\n");
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size);
if (ret) {
usb_err(usbatm, "Boot ROM patching failed: %d\n", ret);
return;
}
+ usb_info(usbatm, "starting device\n");
if (instance->modem_type->boot_rom_patch) {
val = cpu_to_le32(BR_ADDR);
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_STACK_ADDR, (u8 *) &val, 4);
usb_err(usbatm, "modem failed to initialize: %d\n", ret);
return;
}
-
- /* Load config data (le32), doing one packet at a time */
- if (cf)
- for (off = 0; off < cf->size / 4; ) {
- __le32 buf[CMD_PACKET_SIZE / 4 - 1];
- int i, len = min_t(int, cf->size / 4 - off, CMD_PACKET_SIZE / 4 / 2 - 1);
- buf[0] = cpu_to_le32(len);
- for (i = 0; i < len; i++, off++) {
- buf[i * 2 + 1] = cpu_to_le32(off);
- memcpy(buf + i * 2 + 2, cf->data + off * 4, 4);
- }
- ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET,
- (u8 *) buf, len, NULL, 0);
- if (ret < 0) {
- usb_err(usbatm, "load config data failed: %d\n", ret);
- return;
- }
- }
-
- msleep_interruptible(4000);
}
static int cxacru_find_firmware(struct cxacru_data *instance,
static int cxacru_heavy_init(struct usbatm_data *usbatm_instance,
struct usb_interface *usb_intf)
{
- const struct firmware *fw, *bp, *cf;
+ const struct firmware *fw, *bp;
struct cxacru_data *instance = usbatm_instance->driver_data;
int ret = cxacru_find_firmware(instance, "fw", &fw);
}
}
- if (cxacru_find_firmware(instance, "cf", &cf)) /* optional */
- cf = NULL;
-
- cxacru_upload_firmware(instance, fw, bp, cf);
+ cxacru_upload_firmware(instance, fw, bp);
- if (cf)
- release_firmware(cf);
if (instance->modem_type->boot_rom_patch)
release_firmware(bp);
release_firmware(fw);
if (instance->atm_dev) {
sysfs_remove_link(&instance->atm_dev->class_dev.kobj, "device");
atm_dev_deregister(instance->atm_dev);
+ instance->atm_dev = NULL;
}
usbatm_put_instance(instance); /* taken in usbatm_usb_probe */
{
dbg("%s: driver version %s", __func__, DRIVER_VERSION);
- if (sizeof(struct usbatm_control) > sizeof(((struct sk_buff *) 0)->cb)) {
+ if (sizeof(struct usbatm_control) > FIELD_SIZEOF(struct sk_buff, cb)) {
printk(KERN_ERR "%s unusable with this kernel!\n", usbatm_driver_name);
return -EIO;
}
struct urb *urbs[0];
};
+static inline void *to_usbatm_driver_data(struct usb_interface *intf)
+{
+ struct usbatm_data *usbatm_instance;
+
+ if (intf == NULL)
+ return NULL;
+
+ usbatm_instance = usb_get_intfdata(intf);
+
+ if (usbatm_instance == NULL) /* set NULL before unbind() */
+ return NULL;
+
+ return usbatm_instance->driver_data; /* set NULL after unbind() */
+}
+
#endif /* _USBATM_H_ */
if (!c67x00)
return -ENOMEM;
- if (!request_mem_region(res->start, res->end - res->start + 1,
+ if (!request_mem_region(res->start, resource_size(res),
pdev->name)) {
dev_err(&pdev->dev, "Memory region busy\n");
ret = -EBUSY;
goto request_mem_failed;
}
- c67x00->hpi.base = ioremap(res->start, res->end - res->start + 1);
+ c67x00->hpi.base = ioremap(res->start, resource_size(res));
if (!c67x00->hpi.base) {
dev_err(&pdev->dev, "Unable to map HPI registers\n");
ret = -EIO;
request_irq_failed:
iounmap(c67x00->hpi.base);
map_failed:
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
request_mem_failed:
kfree(c67x00);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res)
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
kfree(c67x00);
{
wb->use = 0;
acm->transmitting--;
+ usb_autopm_put_interface_async(acm->control);
}
/*
}
dbg("%s susp_count: %d", __func__, acm->susp_count);
+ usb_autopm_get_interface_async(acm->control);
if (acm->susp_count) {
- acm->delayed_wb = wb;
- schedule_work(&acm->waker);
+ if (!acm->delayed_wb)
+ acm->delayed_wb = wb;
+ else
+ usb_autopm_put_interface_async(acm->control);
spin_unlock_irqrestore(&acm->write_lock, flags);
return 0; /* A white lie */
}
throttled = acm->throttle;
spin_unlock_irqrestore(&acm->throttle_lock, flags);
if (!throttled) {
- tty_buffer_request_room(tty, buf->size);
tty_insert_flip_string(tty, buf->base, buf->size);
tty_flip_buffer_push(tty);
} else {
tty_kref_put(tty);
}
-static void acm_waker(struct work_struct *waker)
-{
- struct acm *acm = container_of(waker, struct acm, waker);
- int rv;
-
- rv = usb_autopm_get_interface(acm->control);
- if (rv < 0) {
- dev_err(&acm->dev->dev, "Autopm failure in %s\n", __func__);
- return;
- }
- if (acm->delayed_wb) {
- acm_start_wb(acm, acm->delayed_wb);
- acm->delayed_wb = NULL;
- }
- usb_autopm_put_interface(acm->control);
-}
-
/*
* TTY handlers
*/
acm = acm_table[tty->index];
if (!acm || !acm->dev)
- goto err_out;
+ goto out;
else
rv = 0;
mutex_lock(&acm->mutex);
if (acm->port.count++) {
+ mutex_unlock(&acm->mutex);
usb_autopm_put_interface(acm->control);
- goto done;
+ goto out;
}
acm->ctrlurb->dev = acm->dev;
set_bit(ASYNCB_INITIALIZED, &acm->port.flags);
rv = tty_port_block_til_ready(&acm->port, tty, filp);
tasklet_schedule(&acm->urb_task);
-done:
+
mutex_unlock(&acm->mutex);
-err_out:
+out:
mutex_unlock(&open_mutex);
return rv;
full_bailout:
usb_kill_urb(acm->ctrlurb);
bail_out:
- usb_autopm_put_interface(acm->control);
acm->port.count--;
mutex_unlock(&acm->mutex);
+ usb_autopm_put_interface(acm->control);
early_bail:
mutex_unlock(&open_mutex);
tty_port_tty_set(&acm->port, NULL);
case USB_CDC_CALL_MANAGEMENT_TYPE:
call_management_function = buffer[3];
call_interface_num = buffer[4];
- if ((call_management_function & 3) != 3)
+ if ( (quirks & NOT_A_MODEM) == 0 && (call_management_function & 3) != 3)
dev_err(&intf->dev, "This device cannot do calls on its own. It is not a modem.\n");
break;
default:
acm->urb_task.func = acm_rx_tasklet;
acm->urb_task.data = (unsigned long) acm;
INIT_WORK(&acm->work, acm_softint);
- INIT_WORK(&acm->waker, acm_waker);
init_waitqueue_head(&acm->drain_wait);
spin_lock_init(&acm->throttle_lock);
spin_lock_init(&acm->write_lock);
tasklet_enable(&acm->urb_task);
cancel_work_sync(&acm->work);
- cancel_work_sync(&acm->waker);
}
static void acm_disconnect(struct usb_interface *intf)
static int acm_resume(struct usb_interface *intf)
{
struct acm *acm = usb_get_intfdata(intf);
+ struct acm_wb *wb;
int rv = 0;
int cnt;
mutex_lock(&acm->mutex);
if (acm->port.count) {
rv = usb_submit_urb(acm->ctrlurb, GFP_NOIO);
+
+ spin_lock_irq(&acm->write_lock);
+ if (acm->delayed_wb) {
+ wb = acm->delayed_wb;
+ acm->delayed_wb = NULL;
+ spin_unlock_irq(&acm->write_lock);
+ acm_start_wb(acm, acm->delayed_wb);
+ } else {
+ spin_unlock_irq(&acm->write_lock);
+ }
+
+ /*
+ * delayed error checking because we must
+ * do the write path at all cost
+ */
if (rv < 0)
goto err_out;
return rv;
}
+static int acm_reset_resume(struct usb_interface *intf)
+{
+ struct acm *acm = usb_get_intfdata(intf);
+ struct tty_struct *tty;
+
+ mutex_lock(&acm->mutex);
+ if (acm->port.count) {
+ tty = tty_port_tty_get(&acm->port);
+ if (tty) {
+ tty_hangup(tty);
+ tty_kref_put(tty);
+ }
+ }
+ mutex_unlock(&acm->mutex);
+ return acm_resume(intf);
+}
+
#endif /* CONFIG_PM */
#define NOKIA_PCSUITE_ACM_INFO(x) \
* USB driver structure.
*/
-static struct usb_device_id acm_ids[] = {
+static const struct usb_device_id acm_ids[] = {
/* quirky and broken devices */
{ USB_DEVICE(0x0870, 0x0001), /* Metricom GS Modem */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
/* NOTE: non-Nokia COMM/ACM/0xff is likely MSFT RNDIS... NOT a modem! */
+ /* Support Lego NXT using pbLua firmware */
+ { USB_DEVICE(0x0694, 0xff00),
+ .driver_info = NOT_A_MODEM,
+ },
+
/* control interfaces with various AT-command sets */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
USB_CDC_ACM_PROTO_AT_V25TER) },
#ifdef CONFIG_PM
.suspend = acm_suspend,
.resume = acm_resume,
+ .reset_resume = acm_reset_resume,
#endif
.id_table = acm_ids,
#ifdef CONFIG_PM
struct mutex mutex;
struct usb_cdc_line_coding line; /* bits, stop, parity */
struct work_struct work; /* work queue entry for line discipline waking up */
- struct work_struct waker;
wait_queue_head_t drain_wait; /* close processing */
struct tasklet_struct urb_task; /* rx processing */
spinlock_t throttle_lock; /* synchronize throtteling and read callback */
#define NO_UNION_NORMAL 1
#define SINGLE_RX_URB 2
#define NO_CAP_LINE 4
+#define NOT_A_MODEM 8
#define DRIVER_AUTHOR "Oliver Neukum"
#define DRIVER_DESC "USB Abstract Control Model driver for USB WCM Device Management"
-static struct usb_device_id wdm_ids[] = {
+static const struct usb_device_id wdm_ids[] = {
{
.match_flags = USB_DEVICE_ID_MATCH_INT_CLASS |
USB_DEVICE_ID_MATCH_INT_SUBCLASS,
unsigned char used; /* True if open */
unsigned char present; /* True if not disconnected */
unsigned char bidir; /* interface is bidirectional */
- unsigned char sleeping; /* interface is suspended */
unsigned char no_paper; /* Paper Out happened */
unsigned char *device_id_string; /* IEEE 1284 DEVICE ID string (ptr) */
/* first 2 bytes are (big-endian) length */
dbg("quirks=%d", usblp->quirks);
dbg("used=%d", usblp->used);
dbg("bidir=%d", usblp->bidir);
- dbg("sleeping=%d", usblp->sleeping);
dbg("device_id_string=\"%s\"",
usblp->device_id_string ?
usblp->device_id_string + 2 :
static int handle_bidir (struct usblp *usblp)
{
- if (usblp->bidir && usblp->used && !usblp->sleeping) {
+ if (usblp->bidir && usblp->used) {
if (usblp_submit_read(usblp) < 0)
return -EIO;
}
goto done;
}
- if (usblp->sleeping) {
- retval = -ENODEV;
- goto done;
- }
-
dbg("usblp_ioctl: cmd=0x%x (%c nr=%d len=%d dir=%d)", cmd, _IOC_TYPE(cmd),
_IOC_NR(cmd), _IOC_SIZE(cmd), _IOC_DIR(cmd) );
return 0;
}
spin_unlock_irqrestore(&usblp->lock, flags);
- if (usblp->sleeping)
- return -ENODEV;
if (nonblock)
return -EAGAIN;
return 1;
return 0;
}
spin_unlock_irqrestore(&usblp->lock, flags);
- if (usblp->sleeping)
- return -ENODEV;
if (nonblock)
return -EAGAIN;
return 1;
mutex_unlock (&usblp_mutex);
}
-static int usblp_suspend (struct usb_interface *intf, pm_message_t message)
+static int usblp_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usblp *usblp = usb_get_intfdata (intf);
- /* we take no more IO */
- usblp->sleeping = 1;
usblp_unlink_urbs(usblp);
#if 0 /* XXX Do we want this? What if someone is reading, should we fail? */
/* not strictly necessary, but just in case */
return 0;
}
-static int usblp_resume (struct usb_interface *intf)
+static int usblp_resume(struct usb_interface *intf)
{
struct usblp *usblp = usb_get_intfdata (intf);
int r;
- usblp->sleeping = 0;
r = handle_bidir (usblp);
return r;
}
-static struct usb_device_id usblp_ids [] = {
+static const struct usb_device_id usblp_ids[] = {
{ USB_DEVICE_INFO(7, 1, 1) },
{ USB_DEVICE_INFO(7, 1, 2) },
{ USB_DEVICE_INFO(7, 1, 3) },
*/
#define USBTMC_MAX_READS_TO_CLEAR_BULK_IN 100
-static struct usb_device_id usbtmc_devices[] = {
+static const struct usb_device_id usbtmc_devices[] = {
{ USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, 3, 0), },
{ USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, 3, 1), },
{ 0, } /* terminating entry */
If you are unsure about this, say N here.
config USB_SUSPEND
- bool "USB selective suspend/resume and wakeup"
- depends on USB && PM
+ bool "USB runtime power management (suspend/resume and wakeup)"
+ depends on USB && PM_RUNTIME
help
If you say Y here, you can use driver calls or the sysfs
"power/level" file to suspend or resume individual USB
*/
static DECLARE_WAIT_QUEUE_HEAD(deviceconndiscwq);
+/* guarded by usbfs_mutex */
static unsigned int conndiscevcnt;
/* this struct stores the poll state for <mountpoint>/devices pollers */
void usbfs_conn_disc_event(void)
{
+ mutex_lock(&usbfs_mutex);
conndiscevcnt++;
+ mutex_unlock(&usbfs_mutex);
wake_up(&deviceconndiscwq);
}
static unsigned int usb_device_poll(struct file *file,
struct poll_table_struct *wait)
{
- struct usb_device_status *st = file->private_data;
+ struct usb_device_status *st;
unsigned int mask = 0;
- lock_kernel();
+ mutex_lock(&usbfs_mutex);
+ st = file->private_data;
if (!st) {
st = kmalloc(sizeof(struct usb_device_status), GFP_KERNEL);
-
- /* we may have dropped BKL -
- * need to check for having lost the race */
- if (file->private_data) {
- kfree(st);
- st = file->private_data;
- goto lost_race;
- }
- /* we haven't lost - check for allocation failure now */
if (!st) {
- unlock_kernel();
+ mutex_unlock(&usbfs_mutex);
return POLLIN;
}
- /*
- * need to prevent the module from being unloaded, since
- * proc_unregister does not call the release method and
- * we would have a memory leak
- */
st->lastev = conndiscevcnt;
file->private_data = st;
mask = POLLIN;
}
-lost_race:
+
if (file->f_mode & FMODE_READ)
poll_wait(file, &deviceconndiscwq, wait);
if (st->lastev != conndiscevcnt)
mask |= POLLIN;
st->lastev = conndiscevcnt;
- unlock_kernel();
+ mutex_unlock(&usbfs_mutex);
return mask;
}
{
loff_t ret;
- lock_kernel();
+ mutex_lock(&file->f_dentry->d_inode->i_mutex);
switch (orig) {
case 0:
ret = -EINVAL;
}
- unlock_kernel();
+ mutex_unlock(&file->f_dentry->d_inode->i_mutex);
return ret;
}
{
loff_t ret;
- lock_kernel();
+ mutex_lock(&file->f_dentry->d_inode->i_mutex);
switch (orig) {
case 0:
ret = -EINVAL;
}
- unlock_kernel();
+ mutex_unlock(&file->f_dentry->d_inode->i_mutex);
return ret;
}
static void snoop_urb(struct usb_device *udev,
void __user *userurb, int pipe, unsigned length,
- int timeout_or_status, enum snoop_when when)
+ int timeout_or_status, enum snoop_when when,
+ unsigned char *data, unsigned data_len)
{
static const char *types[] = {"isoc", "int", "ctrl", "bulk"};
static const char *dirs[] = {"out", "in"};
"status %d\n",
ep, t, d, length, timeout_or_status);
}
+
+ if (data && data_len > 0) {
+ print_hex_dump(KERN_DEBUG, "data: ", DUMP_PREFIX_NONE, 32, 1,
+ data, data_len, 1);
+ }
}
#define AS_CONTINUATION 1
}
snoop(&urb->dev->dev, "urb complete\n");
snoop_urb(urb->dev, as->userurb, urb->pipe, urb->actual_length,
- as->status, COMPLETE);
+ as->status, COMPLETE,
+ ((urb->transfer_flags & URB_DIR_MASK) == USB_DIR_OUT) ?
+ NULL : urb->transfer_buffer, urb->actual_length);
if (as->status < 0 && as->bulk_addr && as->status != -ECONNRESET &&
as->status != -ENOENT)
cancel_bulk_urbs(ps, as->bulk_addr);
const struct cred *cred = current_cred();
int ret;
- lock_kernel();
- /* Protect against simultaneous removal or release */
- mutex_lock(&usbfs_mutex);
-
ret = -ENOMEM;
ps = kmalloc(sizeof(struct dev_state), GFP_KERNEL);
if (!ps)
- goto out;
+ goto out_free_ps;
ret = -ENODEV;
+ /* Protect against simultaneous removal or release */
+ mutex_lock(&usbfs_mutex);
+
/* usbdev device-node */
if (imajor(inode) == USB_DEVICE_MAJOR)
dev = usbdev_lookup_by_devt(inode->i_rdev);
+
#ifdef CONFIG_USB_DEVICEFS
/* procfs file */
if (!dev) {
dev = NULL;
}
#endif
- if (!dev || dev->state == USB_STATE_NOTATTACHED)
- goto out;
+ mutex_unlock(&usbfs_mutex);
+
+ if (!dev)
+ goto out_free_ps;
+
+ usb_lock_device(dev);
+ if (dev->state == USB_STATE_NOTATTACHED)
+ goto out_unlock_device;
+
ret = usb_autoresume_device(dev);
if (ret)
- goto out;
+ goto out_unlock_device;
- ret = 0;
ps->dev = dev;
ps->file = file;
spin_lock_init(&ps->lock);
smp_wmb();
list_add_tail(&ps->list, &dev->filelist);
file->private_data = ps;
+ usb_unlock_device(dev);
snoop(&dev->dev, "opened by process %d: %s\n", task_pid_nr(current),
current->comm);
- out:
- if (ret) {
- kfree(ps);
- usb_put_dev(dev);
- }
- mutex_unlock(&usbfs_mutex);
- unlock_kernel();
+ return ret;
+
+ out_unlock_device:
+ usb_unlock_device(dev);
+ usb_put_dev(dev);
+ out_free_ps:
+ kfree(ps);
return ret;
}
usb_lock_device(dev);
usb_hub_release_all_ports(dev, ps);
- /* Protect against simultaneous open */
- mutex_lock(&usbfs_mutex);
list_del_init(&ps->list);
- mutex_unlock(&usbfs_mutex);
for (ifnum = 0; ps->ifclaimed && ifnum < 8*sizeof(ps->ifclaimed);
ifnum++) {
if (!tbuf)
return -ENOMEM;
tmo = ctrl.timeout;
+ snoop(&dev->dev, "control urb: bRequestType=%02x "
+ "bRequest=%02x wValue=%04x "
+ "wIndex=%04x wLength=%04x\n",
+ ctrl.bRequestType, ctrl.bRequest,
+ __le16_to_cpup(&ctrl.wValue),
+ __le16_to_cpup(&ctrl.wIndex),
+ __le16_to_cpup(&ctrl.wLength));
if (ctrl.bRequestType & 0x80) {
if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data,
ctrl.wLength)) {
return -EINVAL;
}
pipe = usb_rcvctrlpipe(dev, 0);
- snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT);
+ snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT, NULL, 0);
usb_unlock_device(dev);
i = usb_control_msg(dev, pipe, ctrl.bRequest,
ctrl.bRequestType, ctrl.wValue, ctrl.wIndex,
tbuf, ctrl.wLength, tmo);
usb_lock_device(dev);
- snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE);
-
+ snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE,
+ tbuf, i);
if ((i > 0) && ctrl.wLength) {
if (copy_to_user(ctrl.data, tbuf, i)) {
free_page((unsigned long)tbuf);
}
}
pipe = usb_sndctrlpipe(dev, 0);
- snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT);
+ snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT,
+ tbuf, ctrl.wLength);
usb_unlock_device(dev);
i = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ctrl.bRequest,
ctrl.bRequestType, ctrl.wValue, ctrl.wIndex,
tbuf, ctrl.wLength, tmo);
usb_lock_device(dev);
- snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE);
+ snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE, NULL, 0);
}
free_page((unsigned long)tbuf);
if (i < 0 && i != -EPIPE) {
kfree(tbuf);
return -EINVAL;
}
- snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT);
+ snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT, NULL, 0);
usb_unlock_device(dev);
i = usb_bulk_msg(dev, pipe, tbuf, len1, &len2, tmo);
usb_lock_device(dev);
- snoop_urb(dev, NULL, pipe, len2, i, COMPLETE);
+ snoop_urb(dev, NULL, pipe, len2, i, COMPLETE, tbuf, len2);
if (!i && len2) {
if (copy_to_user(bulk.data, tbuf, len2)) {
return -EFAULT;
}
}
- snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT);
+ snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT, tbuf, len1);
usb_unlock_device(dev);
i = usb_bulk_msg(dev, pipe, tbuf, len1, &len2, tmo);
usb_lock_device(dev);
- snoop_urb(dev, NULL, pipe, len2, i, COMPLETE);
+ snoop_urb(dev, NULL, pipe, len2, i, COMPLETE, NULL, 0);
}
kfree(tbuf);
if (i < 0)
is_in = 0;
uurb->endpoint &= ~USB_DIR_IN;
}
+ snoop(&ps->dev->dev, "control urb: bRequestType=%02x "
+ "bRequest=%02x wValue=%04x "
+ "wIndex=%04x wLength=%04x\n",
+ dr->bRequestType, dr->bRequest,
+ __le16_to_cpup(&dr->wValue),
+ __le16_to_cpup(&dr->wIndex),
+ __le16_to_cpup(&dr->wLength));
break;
case USBDEVFS_URB_TYPE_BULK:
case USB_ENDPOINT_XFER_CONTROL:
case USB_ENDPOINT_XFER_ISOC:
return -EINVAL;
- /* allow single-shot interrupt transfers, at bogus rates */
+ case USB_ENDPOINT_XFER_INT:
+ /* allow single-shot interrupt transfers */
+ uurb->type = USBDEVFS_URB_TYPE_INTERRUPT;
+ goto interrupt_urb;
}
uurb->number_of_packets = 0;
if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
return -EINVAL;
break;
+ case USBDEVFS_URB_TYPE_INTERRUPT:
+ if (!usb_endpoint_xfer_int(&ep->desc))
+ return -EINVAL;
+ interrupt_urb:
+ uurb->number_of_packets = 0;
+ if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
+ return -EINVAL;
+ break;
+
case USBDEVFS_URB_TYPE_ISO:
/* arbitrary limit */
if (uurb->number_of_packets < 1 ||
uurb->buffer_length = totlen;
break;
- case USBDEVFS_URB_TYPE_INTERRUPT:
- uurb->number_of_packets = 0;
- if (!usb_endpoint_xfer_int(&ep->desc))
- return -EINVAL;
- if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
- return -EINVAL;
- break;
-
default:
return -EINVAL;
}
}
}
snoop_urb(ps->dev, as->userurb, as->urb->pipe,
- as->urb->transfer_buffer_length, 0, SUBMIT);
+ as->urb->transfer_buffer_length, 0, SUBMIT,
+ is_in ? NULL : as->urb->transfer_buffer,
+ uurb->buffer_length);
async_newpending(as);
if (usb_endpoint_xfer_bulk(&ep->desc)) {
dev_printk(KERN_DEBUG, &ps->dev->dev,
"usbfs: usb_submit_urb returned %d\n", ret);
snoop_urb(ps->dev, as->userurb, as->urb->pipe,
- 0, ret, COMPLETE);
+ 0, ret, COMPLETE, NULL, 0);
async_removepending(as);
free_async(as);
return ret;
if (driver == NULL || driver->ioctl == NULL) {
retval = -ENOTTY;
} else {
+ /* keep API that guarantees BKL */
+ lock_kernel();
retval = driver->ioctl(intf, ctl->ioctl_code, buf);
+ unlock_kernel();
if (retval == -ENOIOCTLCMD)
retval = -ENOTTY;
}
if (!(file->f_mode & FMODE_WRITE))
return -EPERM;
+
usb_lock_device(dev);
if (!connected(ps)) {
usb_unlock_device(dev);
{
int ret;
- lock_kernel();
ret = usbdev_do_ioctl(file, cmd, (void __user *)arg);
- unlock_kernel();
return ret;
}
{
int ret;
- lock_kernel();
ret = usbdev_do_ioctl(file, cmd, compat_ptr(arg));
- unlock_kernel();
return ret;
}
#include <linux/device.h>
#include <linux/usb.h>
#include <linux/usb/quirks.h>
-#include <linux/workqueue.h>
+#include <linux/pm_runtime.h>
#include "hcd.h"
#include "usb.h"
{
struct usb_device_driver *udriver = to_usb_device_driver(dev->driver);
struct usb_device *udev = to_usb_device(dev);
- int error = -ENODEV;
+ int error = 0;
dev_dbg(dev, "%s\n", __func__);
/* The device should always appear to be in use
* unless the driver suports autosuspend.
*/
- udev->pm_usage_cnt = !(udriver->supports_autosuspend);
+ if (!udriver->supports_autosuspend)
+ error = usb_autoresume_device(udev);
- error = udriver->probe(udev);
+ if (!error)
+ error = udriver->probe(udev);
return error;
}
/* called from driver core with dev locked */
static int usb_unbind_device(struct device *dev)
{
+ struct usb_device *udev = to_usb_device(dev);
struct usb_device_driver *udriver = to_usb_device_driver(dev->driver);
- udriver->disconnect(to_usb_device(dev));
+ udriver->disconnect(udev);
+ if (!udriver->supports_autosuspend)
+ usb_autosuspend_device(udev);
return 0;
}
intf->needs_binding = 0;
if (usb_device_is_owned(udev))
- return -ENODEV;
+ return error;
if (udev->authorized == 0) {
dev_err(&intf->dev, "Device is not authorized for usage\n");
- return -ENODEV;
+ return error;
}
id = usb_match_id(intf, driver->id_table);
if (!id)
id = usb_match_dynamic_id(intf, driver);
- if (id) {
- dev_dbg(dev, "%s - got id\n", __func__);
-
- error = usb_autoresume_device(udev);
- if (error)
- return error;
+ if (!id)
+ return error;
- /* Interface "power state" doesn't correspond to any hardware
- * state whatsoever. We use it to record when it's bound to
- * a driver that may start I/0: it's not frozen/quiesced.
- */
- mark_active(intf);
- intf->condition = USB_INTERFACE_BINDING;
+ dev_dbg(dev, "%s - got id\n", __func__);
- /* The interface should always appear to be in use
- * unless the driver suports autosuspend.
- */
- atomic_set(&intf->pm_usage_cnt, !driver->supports_autosuspend);
-
- /* Carry out a deferred switch to altsetting 0 */
- if (intf->needs_altsetting0) {
- error = usb_set_interface(udev, intf->altsetting[0].
- desc.bInterfaceNumber, 0);
- if (error < 0)
- goto err;
+ error = usb_autoresume_device(udev);
+ if (error)
+ return error;
- intf->needs_altsetting0 = 0;
- }
+ intf->condition = USB_INTERFACE_BINDING;
- error = driver->probe(intf, id);
- if (error)
+ /* Bound interfaces are initially active. They are
+ * runtime-PM-enabled only if the driver has autosuspend support.
+ * They are sensitive to their children's power states.
+ */
+ pm_runtime_set_active(dev);
+ pm_suspend_ignore_children(dev, false);
+ if (driver->supports_autosuspend)
+ pm_runtime_enable(dev);
+
+ /* Carry out a deferred switch to altsetting 0 */
+ if (intf->needs_altsetting0) {
+ error = usb_set_interface(udev, intf->altsetting[0].
+ desc.bInterfaceNumber, 0);
+ if (error < 0)
goto err;
-
- intf->condition = USB_INTERFACE_BOUND;
- usb_autosuspend_device(udev);
+ intf->needs_altsetting0 = 0;
}
+ error = driver->probe(intf, id);
+ if (error)
+ goto err;
+
+ intf->condition = USB_INTERFACE_BOUND;
+ usb_autosuspend_device(udev);
return error;
-err:
- mark_quiesced(intf);
+ err:
intf->needs_remote_wakeup = 0;
intf->condition = USB_INTERFACE_UNBOUND;
usb_cancel_queued_reset(intf);
+
+ /* Unbound interfaces are always runtime-PM-disabled and -suspended */
+ pm_runtime_disable(dev);
+ pm_runtime_set_suspended(dev);
+
usb_autosuspend_device(udev);
return error;
}
usb_set_intfdata(intf, NULL);
intf->condition = USB_INTERFACE_UNBOUND;
- mark_quiesced(intf);
intf->needs_remote_wakeup = 0;
+ /* Unbound interfaces are always runtime-PM-disabled and -suspended */
+ pm_runtime_disable(dev);
+ pm_runtime_set_suspended(dev);
+
+ /* Undo any residual pm_autopm_get_interface_* calls */
+ for (r = atomic_read(&intf->pm_usage_cnt); r > 0; --r)
+ usb_autopm_put_interface_no_suspend(intf);
+ atomic_set(&intf->pm_usage_cnt, 0);
+
if (!error)
usb_autosuspend_device(udev);
struct usb_interface *iface, void *priv)
{
struct device *dev = &iface->dev;
- struct usb_device *udev = interface_to_usbdev(iface);
int retval = 0;
if (dev->driver)
usb_set_intfdata(iface, priv);
iface->needs_binding = 0;
- usb_pm_lock(udev);
iface->condition = USB_INTERFACE_BOUND;
- mark_active(iface);
- atomic_set(&iface->pm_usage_cnt, !driver->supports_autosuspend);
- usb_pm_unlock(udev);
+
+ /* Bound interfaces are initially active. They are
+ * runtime-PM-enabled only if the driver has autosuspend support.
+ * They are sensitive to their children's power states.
+ */
+ pm_runtime_set_active(dev);
+ pm_suspend_ignore_children(dev, false);
+ if (driver->supports_autosuspend)
+ pm_runtime_enable(dev);
/* if interface was already added, bind now; else let
* the future device_add() bind it, bypassing probe()
{
struct usb_device *usb_dev;
- /* driver is often null here; dev_dbg() would oops */
- pr_debug("usb %s: uevent\n", dev_name(dev));
-
if (is_usb_device(dev)) {
usb_dev = to_usb_device(dev);
} else if (is_usb_interface(dev)) {
}
if (usb_dev->devnum < 0) {
+ /* driver is often null here; dev_dbg() would oops */
pr_debug("usb %s: already deleted?\n", dev_name(dev));
return -ENODEV;
}
}
}
-/* Caller has locked udev's pm_mutex */
static int usb_suspend_device(struct usb_device *udev, pm_message_t msg)
{
struct usb_device_driver *udriver;
return status;
}
-/* Caller has locked udev's pm_mutex */
static int usb_resume_device(struct usb_device *udev, pm_message_t msg)
{
struct usb_device_driver *udriver;
return status;
}
-/* Caller has locked intf's usb_device's pm mutex */
static int usb_suspend_interface(struct usb_device *udev,
struct usb_interface *intf, pm_message_t msg)
{
struct usb_driver *driver;
int status = 0;
- /* with no hardware, USB interfaces only use FREEZE and ON states */
- if (udev->state == USB_STATE_NOTATTACHED || !is_active(intf))
- goto done;
-
- /* This can happen; see usb_driver_release_interface() */
- if (intf->condition == USB_INTERFACE_UNBOUND)
+ if (udev->state == USB_STATE_NOTATTACHED ||
+ intf->condition == USB_INTERFACE_UNBOUND)
goto done;
driver = to_usb_driver(intf->dev.driver);
if (driver->suspend) {
status = driver->suspend(intf, msg);
- if (status == 0)
- mark_quiesced(intf);
- else if (!(msg.event & PM_EVENT_AUTO))
+ if (status && !(msg.event & PM_EVENT_AUTO))
dev_err(&intf->dev, "%s error %d\n",
"suspend", status);
} else {
intf->needs_binding = 1;
dev_warn(&intf->dev, "no %s for driver %s?\n",
"suspend", driver->name);
- mark_quiesced(intf);
}
done:
return status;
}
-/* Caller has locked intf's usb_device's pm_mutex */
static int usb_resume_interface(struct usb_device *udev,
struct usb_interface *intf, pm_message_t msg, int reset_resume)
{
struct usb_driver *driver;
int status = 0;
- if (udev->state == USB_STATE_NOTATTACHED || is_active(intf))
+ if (udev->state == USB_STATE_NOTATTACHED)
goto done;
/* Don't let autoresume interfere with unbinding */
done:
dev_vdbg(&intf->dev, "%s: status %d\n", __func__, status);
- if (status == 0 && intf->condition == USB_INTERFACE_BOUND)
- mark_active(intf);
/* Later we will unbind the driver and/or reprobe, if necessary */
return status;
}
-#ifdef CONFIG_USB_SUSPEND
-
-/* Internal routine to check whether we may autosuspend a device. */
-static int autosuspend_check(struct usb_device *udev, int reschedule)
-{
- int i;
- struct usb_interface *intf;
- unsigned long suspend_time, j;
-
- /* For autosuspend, fail fast if anything is in use or autosuspend
- * is disabled. Also fail if any interfaces require remote wakeup
- * but it isn't available.
- */
- if (udev->pm_usage_cnt > 0)
- return -EBUSY;
- if (udev->autosuspend_delay < 0 || udev->autosuspend_disabled)
- return -EPERM;
-
- suspend_time = udev->last_busy + udev->autosuspend_delay;
- if (udev->actconfig) {
- for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
- intf = udev->actconfig->interface[i];
- if (!is_active(intf))
- continue;
- if (atomic_read(&intf->pm_usage_cnt) > 0)
- return -EBUSY;
- if (intf->needs_remote_wakeup &&
- !udev->do_remote_wakeup) {
- dev_dbg(&udev->dev, "remote wakeup needed "
- "for autosuspend\n");
- return -EOPNOTSUPP;
- }
-
- /* Don't allow autosuspend if the device will need
- * a reset-resume and any of its interface drivers
- * doesn't include support.
- */
- if (udev->quirks & USB_QUIRK_RESET_RESUME) {
- struct usb_driver *driver;
-
- driver = to_usb_driver(intf->dev.driver);
- if (!driver->reset_resume ||
- intf->needs_remote_wakeup)
- return -EOPNOTSUPP;
- }
- }
- }
-
- /* If everything is okay but the device hasn't been idle for long
- * enough, queue a delayed autosuspend request. If the device
- * _has_ been idle for long enough and the reschedule flag is set,
- * likewise queue a delayed (1 second) autosuspend request.
- */
- j = jiffies;
- if (time_before(j, suspend_time))
- reschedule = 1;
- else
- suspend_time = j + HZ;
- if (reschedule) {
- if (!timer_pending(&udev->autosuspend.timer)) {
- queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend,
- round_jiffies_up_relative(suspend_time - j));
- }
- return -EAGAIN;
- }
- return 0;
-}
-
-#else
-
-static inline int autosuspend_check(struct usb_device *udev, int reschedule)
-{
- return 0;
-}
-
-#endif /* CONFIG_USB_SUSPEND */
-
/**
* usb_suspend_both - suspend a USB device and its interfaces
* @udev: the usb_device to suspend
* all the interfaces which were suspended are resumed so that they remain
* in the same state as the device.
*
- * If an autosuspend is in progress the routine checks first to make sure
- * that neither the device itself or any of its active interfaces is in use
- * (pm_usage_cnt is greater than 0). If they are, the autosuspend fails.
- *
- * If the suspend succeeds, the routine recursively queues an autosuspend
- * request for @udev's parent device, thereby propagating the change up
- * the device tree. If all of the parent's children are now suspended,
- * the parent will autosuspend in turn.
- *
- * The suspend method calls are subject to mutual exclusion under control
- * of @udev's pm_mutex. Many of these calls are also under the protection
- * of @udev's device lock (including all requests originating outside the
- * USB subsystem), but autosuspend requests generated by a child device or
- * interface driver may not be. Usbcore will insure that the method calls
- * do not arrive during bind, unbind, or reset operations. However, drivers
- * must be prepared to handle suspend calls arriving at unpredictable times.
- * The only way to block such calls is to do an autoresume (preventing
- * autosuspends) while holding @udev's device lock (preventing outside
- * suspends).
- *
- * The caller must hold @udev->pm_mutex.
+ * Autosuspend requests originating from a child device or an interface
+ * driver may be made without the protection of @udev's device lock, but
+ * all other suspend calls will hold the lock. Usbcore will insure that
+ * method calls do not arrive during bind, unbind, or reset operations.
+ * However drivers must be prepared to handle suspend calls arriving at
+ * unpredictable times.
*
* This routine can run only in process context.
*/
int status = 0;
int i = 0;
struct usb_interface *intf;
- struct usb_device *parent = udev->parent;
if (udev->state == USB_STATE_NOTATTACHED ||
udev->state == USB_STATE_SUSPENDED)
goto done;
- udev->do_remote_wakeup = device_may_wakeup(&udev->dev);
-
- if (msg.event & PM_EVENT_AUTO) {
- status = autosuspend_check(udev, 0);
- if (status < 0)
- goto done;
- }
-
/* Suspend all the interfaces and then udev itself */
if (udev->actconfig) {
for (; i < udev->actconfig->desc.bNumInterfaces; i++) {
/* If the suspend failed, resume interfaces that did get suspended */
if (status != 0) {
- pm_message_t msg2;
-
- msg2.event = msg.event ^ (PM_EVENT_SUSPEND | PM_EVENT_RESUME);
+ msg.event ^= (PM_EVENT_SUSPEND | PM_EVENT_RESUME);
while (--i >= 0) {
intf = udev->actconfig->interface[i];
- usb_resume_interface(udev, intf, msg2, 0);
+ usb_resume_interface(udev, intf, msg, 0);
}
- /* Try another autosuspend when the interfaces aren't busy */
- if (msg.event & PM_EVENT_AUTO)
- autosuspend_check(udev, status == -EBUSY);
-
- /* If the suspend succeeded then prevent any more URB submissions,
- * flush any outstanding URBs, and propagate the suspend up the tree.
+ /* If the suspend succeeded then prevent any more URB submissions
+ * and flush any outstanding URBs.
*/
} else {
- cancel_delayed_work(&udev->autosuspend);
udev->can_submit = 0;
for (i = 0; i < 16; ++i) {
usb_hcd_flush_endpoint(udev, udev->ep_out[i]);
usb_hcd_flush_endpoint(udev, udev->ep_in[i]);
}
-
- /* If this is just a FREEZE or a PRETHAW, udev might
- * not really be suspended. Only true suspends get
- * propagated up the device tree.
- */
- if (parent && udev->state == USB_STATE_SUSPENDED)
- usb_autosuspend_device(parent);
}
done:
* the resume method for @udev and then calls the resume methods for all
* the interface drivers in @udev.
*
- * Before starting the resume, the routine calls itself recursively for
- * the parent device of @udev, thereby propagating the change up the device
- * tree and assuring that @udev will be able to resume. If the parent is
- * unable to resume successfully, the routine fails.
- *
- * The resume method calls are subject to mutual exclusion under control
- * of @udev's pm_mutex. Many of these calls are also under the protection
- * of @udev's device lock (including all requests originating outside the
- * USB subsystem), but autoresume requests generated by a child device or
- * interface driver may not be. Usbcore will insure that the method calls
- * do not arrive during bind, unbind, or reset operations. However, drivers
- * must be prepared to handle resume calls arriving at unpredictable times.
- * The only way to block such calls is to do an autoresume (preventing
- * other autoresumes) while holding @udev's device lock (preventing outside
- * resumes).
- *
- * The caller must hold @udev->pm_mutex.
+ * Autoresume requests originating from a child device or an interface
+ * driver may be made without the protection of @udev's device lock, but
+ * all other resume calls will hold the lock. Usbcore will insure that
+ * method calls do not arrive during bind, unbind, or reset operations.
+ * However drivers must be prepared to handle resume calls arriving at
+ * unpredictable times.
*
* This routine can run only in process context.
*/
int status = 0;
int i;
struct usb_interface *intf;
- struct usb_device *parent = udev->parent;
- cancel_delayed_work(&udev->autosuspend);
if (udev->state == USB_STATE_NOTATTACHED) {
status = -ENODEV;
goto done;
}
udev->can_submit = 1;
- /* Propagate the resume up the tree, if necessary */
- if (udev->state == USB_STATE_SUSPENDED) {
- if (parent) {
- status = usb_autoresume_device(parent);
- if (status == 0) {
- status = usb_resume_device(udev, msg);
- if (status || udev->state ==
- USB_STATE_NOTATTACHED) {
- usb_autosuspend_device(parent);
-
- /* It's possible usb_resume_device()
- * failed after the port was
- * unsuspended, causing udev to be
- * logically disconnected. We don't
- * want usb_disconnect() to autosuspend
- * the parent again, so tell it that
- * udev disconnected while still
- * suspended. */
- if (udev->state ==
- USB_STATE_NOTATTACHED)
- udev->discon_suspended = 1;
- }
- }
- } else {
-
- /* We can't progagate beyond the USB subsystem,
- * so if a root hub's controller is suspended
- * then we're stuck. */
- status = usb_resume_device(udev, msg);
- }
- } else if (udev->reset_resume)
+ /* Resume the device */
+ if (udev->state == USB_STATE_SUSPENDED || udev->reset_resume)
status = usb_resume_device(udev, msg);
+ /* Resume the interfaces */
if (status == 0 && udev->actconfig) {
for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
intf = udev->actconfig->interface[i];
return status;
}
-#ifdef CONFIG_USB_SUSPEND
+/* The device lock is held by the PM core */
+int usb_suspend(struct device *dev, pm_message_t msg)
+{
+ struct usb_device *udev = to_usb_device(dev);
-/* Internal routine to adjust a device's usage counter and change
- * its autosuspend state.
- */
-static int usb_autopm_do_device(struct usb_device *udev, int inc_usage_cnt)
+ do_unbind_rebind(udev, DO_UNBIND);
+ udev->do_remote_wakeup = device_may_wakeup(&udev->dev);
+ return usb_suspend_both(udev, msg);
+}
+
+/* The device lock is held by the PM core */
+int usb_resume(struct device *dev, pm_message_t msg)
{
- int status = 0;
+ struct usb_device *udev = to_usb_device(dev);
+ int status;
- usb_pm_lock(udev);
- udev->pm_usage_cnt += inc_usage_cnt;
- WARN_ON(udev->pm_usage_cnt < 0);
- if (inc_usage_cnt)
- udev->last_busy = jiffies;
- if (inc_usage_cnt >= 0 && udev->pm_usage_cnt > 0) {
- if (udev->state == USB_STATE_SUSPENDED)
- status = usb_resume_both(udev, PMSG_AUTO_RESUME);
- if (status != 0)
- udev->pm_usage_cnt -= inc_usage_cnt;
- else if (inc_usage_cnt)
+ /* For PM complete calls, all we do is rebind interfaces */
+ if (msg.event == PM_EVENT_ON) {
+ if (udev->state != USB_STATE_NOTATTACHED)
+ do_unbind_rebind(udev, DO_REBIND);
+ status = 0;
+
+ /* For all other calls, take the device back to full power and
+ * tell the PM core in case it was autosuspended previously.
+ */
+ } else {
+ status = usb_resume_both(udev, msg);
+ if (status == 0) {
+ pm_runtime_disable(dev);
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
udev->last_busy = jiffies;
- } else if (inc_usage_cnt <= 0 && udev->pm_usage_cnt <= 0) {
- status = usb_suspend_both(udev, PMSG_AUTO_SUSPEND);
+ }
}
- usb_pm_unlock(udev);
+
+ /* Avoid PM error messages for devices disconnected while suspended
+ * as we'll display regular disconnect messages just a bit later.
+ */
+ if (status == -ENODEV)
+ status = 0;
return status;
}
-/* usb_autosuspend_work - callback routine to autosuspend a USB device */
-void usb_autosuspend_work(struct work_struct *work)
-{
- struct usb_device *udev =
- container_of(work, struct usb_device, autosuspend.work);
+#endif /* CONFIG_PM */
+
+#ifdef CONFIG_USB_SUSPEND
- usb_autopm_do_device(udev, 0);
+/**
+ * usb_enable_autosuspend - allow a USB device to be autosuspended
+ * @udev: the USB device which may be autosuspended
+ *
+ * This routine allows @udev to be autosuspended. An autosuspend won't
+ * take place until the autosuspend_delay has elapsed and all the other
+ * necessary conditions are satisfied.
+ *
+ * The caller must hold @udev's device lock.
+ */
+int usb_enable_autosuspend(struct usb_device *udev)
+{
+ if (udev->autosuspend_disabled) {
+ udev->autosuspend_disabled = 0;
+ usb_autosuspend_device(udev);
+ }
+ return 0;
}
+EXPORT_SYMBOL_GPL(usb_enable_autosuspend);
-/* usb_autoresume_work - callback routine to autoresume a USB device */
-void usb_autoresume_work(struct work_struct *work)
+/**
+ * usb_disable_autosuspend - prevent a USB device from being autosuspended
+ * @udev: the USB device which may not be autosuspended
+ *
+ * This routine prevents @udev from being autosuspended and wakes it up
+ * if it is already autosuspended.
+ *
+ * The caller must hold @udev's device lock.
+ */
+int usb_disable_autosuspend(struct usb_device *udev)
{
- struct usb_device *udev =
- container_of(work, struct usb_device, autoresume);
+ int rc = 0;
- /* Wake it up, let the drivers do their thing, and then put it
- * back to sleep.
- */
- if (usb_autopm_do_device(udev, 1) == 0)
- usb_autopm_do_device(udev, -1);
+ if (!udev->autosuspend_disabled) {
+ rc = usb_autoresume_device(udev);
+ if (rc == 0)
+ udev->autosuspend_disabled = 1;
+ }
+ return rc;
}
+EXPORT_SYMBOL_GPL(usb_disable_autosuspend);
/**
* usb_autosuspend_device - delayed autosuspend of a USB device and its interfaces
* @udev and wants to allow it to autosuspend. Examples would be when
* @udev's device file in usbfs is closed or after a configuration change.
*
- * @udev's usage counter is decremented. If it or any of the usage counters
- * for an active interface is greater than 0, no autosuspend request will be
- * queued. (If an interface driver does not support autosuspend then its
- * usage counter is permanently positive.) Furthermore, if an interface
- * driver requires remote-wakeup capability during autosuspend but remote
- * wakeup is disabled, the autosuspend will fail.
+ * @udev's usage counter is decremented; if it drops to 0 and all the
+ * interfaces are inactive then a delayed autosuspend will be attempted.
+ * The attempt may fail (see autosuspend_check()).
*
- * Often the caller will hold @udev's device lock, but this is not
- * necessary.
+ * The caller must hold @udev's device lock.
*
* This routine can run only in process context.
*/
{
int status;
- status = usb_autopm_do_device(udev, -1);
- dev_vdbg(&udev->dev, "%s: cnt %d\n",
- __func__, udev->pm_usage_cnt);
+ udev->last_busy = jiffies;
+ status = pm_runtime_put_sync(&udev->dev);
+ dev_vdbg(&udev->dev, "%s: cnt %d -> %d\n",
+ __func__, atomic_read(&udev->dev.power.usage_count),
+ status);
}
/**
* This routine should be called when a core subsystem thinks @udev may
* be ready to autosuspend.
*
- * @udev's usage counter left unchanged. If it or any of the usage counters
- * for an active interface is greater than 0, or autosuspend is not allowed
- * for any other reason, no autosuspend request will be queued.
+ * @udev's usage counter left unchanged. If it is 0 and all the interfaces
+ * are inactive then an autosuspend will be attempted. The attempt may
+ * fail or be delayed.
+ *
+ * The caller must hold @udev's device lock.
*
* This routine can run only in process context.
*/
void usb_try_autosuspend_device(struct usb_device *udev)
{
- usb_autopm_do_device(udev, 0);
- dev_vdbg(&udev->dev, "%s: cnt %d\n",
- __func__, udev->pm_usage_cnt);
+ int status;
+
+ status = pm_runtime_idle(&udev->dev);
+ dev_vdbg(&udev->dev, "%s: cnt %d -> %d\n",
+ __func__, atomic_read(&udev->dev.power.usage_count),
+ status);
}
/**
*
* This routine should be called when a core subsystem wants to use @udev
* and needs to guarantee that it is not suspended. No autosuspend will
- * occur until usb_autosuspend_device is called. (Note that this will not
- * prevent suspend events originating in the PM core.) Examples would be
- * when @udev's device file in usbfs is opened or when a remote-wakeup
+ * occur until usb_autosuspend_device() is called. (Note that this will
+ * not prevent suspend events originating in the PM core.) Examples would
+ * be when @udev's device file in usbfs is opened or when a remote-wakeup
* request is received.
*
* @udev's usage counter is incremented to prevent subsequent autosuspends.
* However if the autoresume fails then the usage counter is re-decremented.
*
- * Often the caller will hold @udev's device lock, but this is not
- * necessary (and attempting it might cause deadlock).
+ * The caller must hold @udev's device lock.
*
* This routine can run only in process context.
*/
{
int status;
- status = usb_autopm_do_device(udev, 1);
- dev_vdbg(&udev->dev, "%s: status %d cnt %d\n",
- __func__, status, udev->pm_usage_cnt);
- return status;
-}
-
-/* Internal routine to adjust an interface's usage counter and change
- * its device's autosuspend state.
- */
-static int usb_autopm_do_interface(struct usb_interface *intf,
- int inc_usage_cnt)
-{
- struct usb_device *udev = interface_to_usbdev(intf);
- int status = 0;
-
- usb_pm_lock(udev);
- if (intf->condition == USB_INTERFACE_UNBOUND)
- status = -ENODEV;
- else {
- atomic_add(inc_usage_cnt, &intf->pm_usage_cnt);
- udev->last_busy = jiffies;
- if (inc_usage_cnt >= 0 &&
- atomic_read(&intf->pm_usage_cnt) > 0) {
- if (udev->state == USB_STATE_SUSPENDED)
- status = usb_resume_both(udev,
- PMSG_AUTO_RESUME);
- if (status != 0)
- atomic_sub(inc_usage_cnt, &intf->pm_usage_cnt);
- else
- udev->last_busy = jiffies;
- } else if (inc_usage_cnt <= 0 &&
- atomic_read(&intf->pm_usage_cnt) <= 0) {
- status = usb_suspend_both(udev, PMSG_AUTO_SUSPEND);
- }
- }
- usb_pm_unlock(udev);
+ status = pm_runtime_get_sync(&udev->dev);
+ if (status < 0)
+ pm_runtime_put_sync(&udev->dev);
+ dev_vdbg(&udev->dev, "%s: cnt %d -> %d\n",
+ __func__, atomic_read(&udev->dev.power.usage_count),
+ status);
+ if (status > 0)
+ status = 0;
return status;
}
* closed.
*
* The routine decrements @intf's usage counter. When the counter reaches
- * 0, a delayed autosuspend request for @intf's device is queued. When
- * the delay expires, if @intf->pm_usage_cnt is still <= 0 along with all
- * the other usage counters for the sibling interfaces and @intf's
- * usb_device, the device and all its interfaces will be autosuspended.
- *
- * Note that @intf->pm_usage_cnt is owned by the interface driver. The
- * core will not change its value other than the increment and decrement
- * in usb_autopm_get_interface and usb_autopm_put_interface. The driver
- * may use this simple counter-oriented discipline or may set the value
- * any way it likes.
+ * 0, a delayed autosuspend request for @intf's device is attempted. The
+ * attempt may fail (see autosuspend_check()).
*
* If the driver has set @intf->needs_remote_wakeup then autosuspend will
* take place only if the device's remote-wakeup facility is enabled.
*
- * Suspend method calls queued by this routine can arrive at any time
- * while @intf is resumed and its usage counter is equal to 0. They are
- * not protected by the usb_device's lock but only by its pm_mutex.
- * Drivers must provide their own synchronization.
- *
* This routine can run only in process context.
*/
void usb_autopm_put_interface(struct usb_interface *intf)
{
- int status;
+ struct usb_device *udev = interface_to_usbdev(intf);
+ int status;
- status = usb_autopm_do_interface(intf, -1);
- dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
- __func__, status, atomic_read(&intf->pm_usage_cnt));
+ udev->last_busy = jiffies;
+ atomic_dec(&intf->pm_usage_cnt);
+ status = pm_runtime_put_sync(&intf->dev);
+ dev_vdbg(&intf->dev, "%s: cnt %d -> %d\n",
+ __func__, atomic_read(&intf->dev.power.usage_count),
+ status);
}
EXPORT_SYMBOL_GPL(usb_autopm_put_interface);
* usb_autopm_put_interface_async - decrement a USB interface's PM-usage counter
* @intf: the usb_interface whose counter should be decremented
*
- * This routine does essentially the same thing as
- * usb_autopm_put_interface(): it decrements @intf's usage counter and
- * queues a delayed autosuspend request if the counter is <= 0. The
- * difference is that it does not acquire the device's pm_mutex;
- * callers must handle all synchronization issues themselves.
+ * This routine does much the same thing as usb_autopm_put_interface():
+ * It decrements @intf's usage counter and schedules a delayed
+ * autosuspend request if the counter is <= 0. The difference is that it
+ * does not perform any synchronization; callers should hold a private
+ * lock and handle all synchronization issues themselves.
*
* Typically a driver would call this routine during an URB's completion
* handler, if no more URBs were pending.
void usb_autopm_put_interface_async(struct usb_interface *intf)
{
struct usb_device *udev = interface_to_usbdev(intf);
+ unsigned long last_busy;
int status = 0;
- if (intf->condition == USB_INTERFACE_UNBOUND) {
- status = -ENODEV;
- } else {
- udev->last_busy = jiffies;
- atomic_dec(&intf->pm_usage_cnt);
- if (udev->autosuspend_disabled || udev->autosuspend_delay < 0)
- status = -EPERM;
- else if (atomic_read(&intf->pm_usage_cnt) <= 0 &&
- !timer_pending(&udev->autosuspend.timer)) {
- queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend,
+ last_busy = udev->last_busy;
+ udev->last_busy = jiffies;
+ atomic_dec(&intf->pm_usage_cnt);
+ pm_runtime_put_noidle(&intf->dev);
+
+ if (!udev->autosuspend_disabled) {
+ /* Optimization: Don't schedule a delayed autosuspend if
+ * the timer is already running and the expiration time
+ * wouldn't change.
+ *
+ * We have to use the interface's timer. Attempts to
+ * schedule a suspend for the device would fail because
+ * the interface is still active.
+ */
+ if (intf->dev.power.timer_expires == 0 ||
+ round_jiffies_up(last_busy) !=
+ round_jiffies_up(jiffies)) {
+ status = pm_schedule_suspend(&intf->dev,
+ jiffies_to_msecs(
round_jiffies_up_relative(
- udev->autosuspend_delay));
+ udev->autosuspend_delay)));
}
}
- dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
- __func__, status, atomic_read(&intf->pm_usage_cnt));
+ dev_vdbg(&intf->dev, "%s: cnt %d -> %d\n",
+ __func__, atomic_read(&intf->dev.power.usage_count),
+ status);
}
EXPORT_SYMBOL_GPL(usb_autopm_put_interface_async);
+/**
+ * usb_autopm_put_interface_no_suspend - decrement a USB interface's PM-usage counter
+ * @intf: the usb_interface whose counter should be decremented
+ *
+ * This routine decrements @intf's usage counter but does not carry out an
+ * autosuspend.
+ *
+ * This routine can run in atomic context.
+ */
+void usb_autopm_put_interface_no_suspend(struct usb_interface *intf)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+
+ udev->last_busy = jiffies;
+ atomic_dec(&intf->pm_usage_cnt);
+ pm_runtime_put_noidle(&intf->dev);
+}
+EXPORT_SYMBOL_GPL(usb_autopm_put_interface_no_suspend);
+
/**
* usb_autopm_get_interface - increment a USB interface's PM-usage counter
* @intf: the usb_interface whose counter should be incremented
* or @intf is unbound. A typical example would be a character-device
* driver when its device file is opened.
*
- *
- * The routine increments @intf's usage counter. (However if the
- * autoresume fails then the counter is re-decremented.) So long as the
- * counter is greater than 0, autosuspend will not be allowed for @intf
- * or its usb_device. When the driver is finished using @intf it should
- * call usb_autopm_put_interface() to decrement the usage counter and
- * queue a delayed autosuspend request (if the counter is <= 0).
- *
- *
- * Note that @intf->pm_usage_cnt is owned by the interface driver. The
- * core will not change its value other than the increment and decrement
- * in usb_autopm_get_interface and usb_autopm_put_interface. The driver
- * may use this simple counter-oriented discipline or may set the value
- * any way it likes.
- *
- * Resume method calls generated by this routine can arrive at any time
- * while @intf is suspended. They are not protected by the usb_device's
- * lock but only by its pm_mutex. Drivers must provide their own
- * synchronization.
+ * @intf's usage counter is incremented to prevent subsequent autosuspends.
+ * However if the autoresume fails then the counter is re-decremented.
*
* This routine can run only in process context.
*/
{
int status;
- status = usb_autopm_do_interface(intf, 1);
- dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
- __func__, status, atomic_read(&intf->pm_usage_cnt));
+ status = pm_runtime_get_sync(&intf->dev);
+ if (status < 0)
+ pm_runtime_put_sync(&intf->dev);
+ else
+ atomic_inc(&intf->pm_usage_cnt);
+ dev_vdbg(&intf->dev, "%s: cnt %d -> %d\n",
+ __func__, atomic_read(&intf->dev.power.usage_count),
+ status);
+ if (status > 0)
+ status = 0;
return status;
}
EXPORT_SYMBOL_GPL(usb_autopm_get_interface);
* @intf: the usb_interface whose counter should be incremented
*
* This routine does much the same thing as
- * usb_autopm_get_interface(): it increments @intf's usage counter and
- * queues an autoresume request if the result is > 0. The differences
- * are that it does not acquire the device's pm_mutex (callers must
- * handle all synchronization issues themselves), and it does not
- * autoresume the device directly (it only queues a request). After a
- * successful call, the device will generally not yet be resumed.
+ * usb_autopm_get_interface(): It increments @intf's usage counter and
+ * queues an autoresume request if the device is suspended. The
+ * differences are that it does not perform any synchronization (callers
+ * should hold a private lock and handle all synchronization issues
+ * themselves), and it does not autoresume the device directly (it only
+ * queues a request). After a successful call, the device may not yet be
+ * resumed.
*
* This routine can run in atomic context.
*/
int usb_autopm_get_interface_async(struct usb_interface *intf)
{
- struct usb_device *udev = interface_to_usbdev(intf);
- int status = 0;
+ int status = 0;
+ enum rpm_status s;
- if (intf->condition == USB_INTERFACE_UNBOUND)
- status = -ENODEV;
- else {
+ /* Don't request a resume unless the interface is already suspending
+ * or suspended. Doing so would force a running suspend timer to be
+ * cancelled.
+ */
+ pm_runtime_get_noresume(&intf->dev);
+ s = ACCESS_ONCE(intf->dev.power.runtime_status);
+ if (s == RPM_SUSPENDING || s == RPM_SUSPENDED)
+ status = pm_request_resume(&intf->dev);
+
+ if (status < 0 && status != -EINPROGRESS)
+ pm_runtime_put_noidle(&intf->dev);
+ else
atomic_inc(&intf->pm_usage_cnt);
- if (atomic_read(&intf->pm_usage_cnt) > 0 &&
- udev->state == USB_STATE_SUSPENDED)
- queue_work(ksuspend_usb_wq, &udev->autoresume);
- }
- dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
- __func__, status, atomic_read(&intf->pm_usage_cnt));
+ dev_vdbg(&intf->dev, "%s: cnt %d -> %d\n",
+ __func__, atomic_read(&intf->dev.power.usage_count),
+ status);
+ if (status > 0)
+ status = 0;
return status;
}
EXPORT_SYMBOL_GPL(usb_autopm_get_interface_async);
-#else
-
-void usb_autosuspend_work(struct work_struct *work)
-{}
-
-void usb_autoresume_work(struct work_struct *work)
-{}
-
-#endif /* CONFIG_USB_SUSPEND */
-
/**
- * usb_external_suspend_device - external suspend of a USB device and its interfaces
- * @udev: the usb_device to suspend
- * @msg: Power Management message describing this state transition
+ * usb_autopm_get_interface_no_resume - increment a USB interface's PM-usage counter
+ * @intf: the usb_interface whose counter should be incremented
*
- * This routine handles external suspend requests: ones not generated
- * internally by a USB driver (autosuspend) but rather coming from the user
- * (via sysfs) or the PM core (system sleep). The suspend will be carried
- * out regardless of @udev's usage counter or those of its interfaces,
- * and regardless of whether or not remote wakeup is enabled. Of course,
- * interface drivers still have the option of failing the suspend (if
- * there are unsuspended children, for example).
+ * This routine increments @intf's usage counter but does not carry out an
+ * autoresume.
*
- * The caller must hold @udev's device lock.
+ * This routine can run in atomic context.
*/
-int usb_external_suspend_device(struct usb_device *udev, pm_message_t msg)
+void usb_autopm_get_interface_no_resume(struct usb_interface *intf)
{
- int status;
+ struct usb_device *udev = interface_to_usbdev(intf);
- do_unbind_rebind(udev, DO_UNBIND);
- usb_pm_lock(udev);
- status = usb_suspend_both(udev, msg);
- usb_pm_unlock(udev);
- return status;
+ udev->last_busy = jiffies;
+ atomic_inc(&intf->pm_usage_cnt);
+ pm_runtime_get_noresume(&intf->dev);
}
+EXPORT_SYMBOL_GPL(usb_autopm_get_interface_no_resume);
-/**
- * usb_external_resume_device - external resume of a USB device and its interfaces
- * @udev: the usb_device to resume
- * @msg: Power Management message describing this state transition
- *
- * This routine handles external resume requests: ones not generated
- * internally by a USB driver (autoresume) but rather coming from the user
- * (via sysfs), the PM core (system resume), or the device itself (remote
- * wakeup). @udev's usage counter is unaffected.
- *
- * The caller must hold @udev's device lock.
- */
-int usb_external_resume_device(struct usb_device *udev, pm_message_t msg)
+/* Internal routine to check whether we may autosuspend a device. */
+static int autosuspend_check(struct usb_device *udev)
{
- int status;
+ int i;
+ struct usb_interface *intf;
+ unsigned long suspend_time, j;
- usb_pm_lock(udev);
- status = usb_resume_both(udev, msg);
- udev->last_busy = jiffies;
- usb_pm_unlock(udev);
- if (status == 0)
- do_unbind_rebind(udev, DO_REBIND);
+ /* Fail if autosuspend is disabled, or any interfaces are in use, or
+ * any interface drivers require remote wakeup but it isn't available.
+ */
+ udev->do_remote_wakeup = device_may_wakeup(&udev->dev);
+ if (udev->actconfig) {
+ for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
+ intf = udev->actconfig->interface[i];
- /* Now that the device is awake, we can start trying to autosuspend
- * it again. */
- if (status == 0)
- usb_try_autosuspend_device(udev);
- return status;
+ /* We don't need to check interfaces that are
+ * disabled for runtime PM. Either they are unbound
+ * or else their drivers don't support autosuspend
+ * and so they are permanently active.
+ */
+ if (intf->dev.power.disable_depth)
+ continue;
+ if (atomic_read(&intf->dev.power.usage_count) > 0)
+ return -EBUSY;
+ if (intf->needs_remote_wakeup &&
+ !udev->do_remote_wakeup) {
+ dev_dbg(&udev->dev, "remote wakeup needed "
+ "for autosuspend\n");
+ return -EOPNOTSUPP;
+ }
+
+ /* Don't allow autosuspend if the device will need
+ * a reset-resume and any of its interface drivers
+ * doesn't include support or needs remote wakeup.
+ */
+ if (udev->quirks & USB_QUIRK_RESET_RESUME) {
+ struct usb_driver *driver;
+
+ driver = to_usb_driver(intf->dev.driver);
+ if (!driver->reset_resume ||
+ intf->needs_remote_wakeup)
+ return -EOPNOTSUPP;
+ }
+ }
+ }
+
+ /* If everything is okay but the device hasn't been idle for long
+ * enough, queue a delayed autosuspend request.
+ */
+ j = ACCESS_ONCE(jiffies);
+ suspend_time = udev->last_busy + udev->autosuspend_delay;
+ if (time_before(j, suspend_time)) {
+ pm_schedule_suspend(&udev->dev, jiffies_to_msecs(
+ round_jiffies_up_relative(suspend_time - j)));
+ return -EAGAIN;
+ }
+ return 0;
}
-int usb_suspend(struct device *dev, pm_message_t msg)
+static int usb_runtime_suspend(struct device *dev)
{
- struct usb_device *udev;
-
- udev = to_usb_device(dev);
+ int status = 0;
- /* If udev is already suspended, we can skip this suspend and
- * we should also skip the upcoming system resume. High-speed
- * root hubs are an exception; they need to resume whenever the
- * system wakes up in order for USB-PERSIST port handover to work
- * properly.
+ /* A USB device can be suspended if it passes the various autosuspend
+ * checks. Runtime suspend for a USB device means suspending all the
+ * interfaces and then the device itself.
*/
- if (udev->state == USB_STATE_SUSPENDED) {
- if (udev->parent || udev->speed != USB_SPEED_HIGH)
- udev->skip_sys_resume = 1;
- return 0;
+ if (is_usb_device(dev)) {
+ struct usb_device *udev = to_usb_device(dev);
+
+ if (autosuspend_check(udev) != 0)
+ return -EAGAIN;
+
+ status = usb_suspend_both(udev, PMSG_AUTO_SUSPEND);
+
+ /* If an interface fails the suspend, adjust the last_busy
+ * time so that we don't get another suspend attempt right
+ * away.
+ */
+ if (status) {
+ udev->last_busy = jiffies +
+ (udev->autosuspend_delay == 0 ?
+ HZ/2 : 0);
+ }
+
+ /* Prevent the parent from suspending immediately after */
+ else if (udev->parent) {
+ udev->parent->last_busy = jiffies;
+ }
}
- udev->skip_sys_resume = 0;
- return usb_external_suspend_device(udev, msg);
+ /* Runtime suspend for a USB interface doesn't mean anything. */
+ return status;
}
-int usb_resume(struct device *dev, pm_message_t msg)
+static int usb_runtime_resume(struct device *dev)
{
- struct usb_device *udev;
- int status;
+ /* Runtime resume for a USB device means resuming both the device
+ * and all its interfaces.
+ */
+ if (is_usb_device(dev)) {
+ struct usb_device *udev = to_usb_device(dev);
+ int status;
- udev = to_usb_device(dev);
+ status = usb_resume_both(udev, PMSG_AUTO_RESUME);
+ udev->last_busy = jiffies;
+ return status;
+ }
- /* If udev->skip_sys_resume is set then udev was already suspended
- * when the system sleep started, so we don't want to resume it
- * during this system wakeup.
- */
- if (udev->skip_sys_resume)
- return 0;
- status = usb_external_resume_device(udev, msg);
+ /* Runtime resume for a USB interface doesn't mean anything. */
+ return 0;
+}
- /* Avoid PM error messages for devices disconnected while suspended
- * as we'll display regular disconnect messages just a bit later.
+static int usb_runtime_idle(struct device *dev)
+{
+ /* An idle USB device can be suspended if it passes the various
+ * autosuspend checks. An idle interface can be suspended at
+ * any time.
*/
- if (status == -ENODEV)
- return 0;
- return status;
+ if (is_usb_device(dev)) {
+ struct usb_device *udev = to_usb_device(dev);
+
+ if (autosuspend_check(udev) != 0)
+ return 0;
+ }
+
+ pm_runtime_suspend(dev);
+ return 0;
}
-#endif /* CONFIG_PM */
+static struct dev_pm_ops usb_bus_pm_ops = {
+ .runtime_suspend = usb_runtime_suspend,
+ .runtime_resume = usb_runtime_resume,
+ .runtime_idle = usb_runtime_idle,
+};
+
+#else
+
+#define usb_bus_pm_ops (*(struct dev_pm_ops *) NULL)
+
+#endif /* CONFIG_USB_SUSPEND */
struct bus_type usb_bus_type = {
.name = "usb",
.match = usb_device_match,
.uevent = usb_uevent,
+ .pm = &usb_bus_pm_ops,
};
int err = -ENODEV;
const struct file_operations *old_fops, *new_fops = NULL;
- lock_kernel();
down_read(&minor_rwsem);
c = usb_minors[minor];
fops_put(old_fops);
done:
up_read(&minor_rwsem);
- unlock_kernel();
return err;
}
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
+#include <linux/pm_runtime.h>
#include <linux/usb.h>
0x09, /* __u8 bMaxPacketSize0; 2^9 = 512 Bytes */
0x6b, 0x1d, /* __le16 idVendor; Linux Foundation */
- 0x02, 0x00, /* __le16 idProduct; device 0x0002 */
+ 0x03, 0x00, /* __le16 idProduct; device 0x0003 */
KERNEL_VER, KERNEL_REL, /* __le16 bcdDevice */
0x03, /* __u8 iManufacturer; */
}
}
for (i = 0; i < num_intfs; ++i) {
+ struct usb_host_interface *first_alt;
+ int iface_num;
+
+ first_alt = &new_config->intf_cache[i]->altsetting[0];
+ iface_num = first_alt->desc.bInterfaceNumber;
/* Set up endpoints for alternate interface setting 0 */
- alt = usb_find_alt_setting(new_config, i, 0);
+ alt = usb_find_alt_setting(new_config, iface_num, 0);
if (!alt)
/* No alt setting 0? Pick the first setting. */
- alt = &new_config->intf_cache[i]->altsetting[0];
+ alt = first_alt;
for (j = 0; j < alt->desc.bNumEndpoints; j++) {
ret = hcd->driver->add_endpoint(hcd, udev, &alt->endpoint[j]);
return status;
}
+#endif /* CONFIG_PM */
+
+#ifdef CONFIG_USB_SUSPEND
+
/* Workqueue routine for root-hub remote wakeup */
static void hcd_resume_work(struct work_struct *work)
{
struct usb_device *udev = hcd->self.root_hub;
usb_lock_device(udev);
- usb_mark_last_busy(udev);
- usb_external_resume_device(udev, PMSG_REMOTE_RESUME);
+ usb_remote_wakeup(udev);
usb_unlock_device(udev);
}
spin_lock_irqsave (&hcd_root_hub_lock, flags);
if (hcd->rh_registered)
- queue_work(ksuspend_usb_wq, &hcd->wakeup_work);
+ queue_work(pm_wq, &hcd->wakeup_work);
spin_unlock_irqrestore (&hcd_root_hub_lock, flags);
}
EXPORT_SYMBOL_GPL(usb_hcd_resume_root_hub);
-#endif
+#endif /* CONFIG_USB_SUSPEND */
/*-------------------------------------------------------------------------*/
init_timer(&hcd->rh_timer);
hcd->rh_timer.function = rh_timer_func;
hcd->rh_timer.data = (unsigned long) hcd;
-#ifdef CONFIG_PM
+#ifdef CONFIG_USB_SUSPEND
INIT_WORK(&hcd->wakeup_work, hcd_resume_work);
#endif
mutex_init(&hcd->bandwidth_mutex);
hcd->rh_registered = 0;
spin_unlock_irq (&hcd_root_hub_lock);
-#ifdef CONFIG_PM
+#ifdef CONFIG_USB_SUSPEND
cancel_work_sync(&hcd->wakeup_work);
#endif
struct timer_list rh_timer; /* drives root-hub polling */
struct urb *status_urb; /* the current status urb */
-#ifdef CONFIG_PM
+#ifdef CONFIG_USB_SUSPEND
struct work_struct wakeup_work; /* for remote wakeup */
#endif
/* xHCI specific functions */
/* Called by usb_alloc_dev to alloc HC device structures */
int (*alloc_dev)(struct usb_hcd *, struct usb_device *);
- /* Called by usb_release_dev to free HC device structures */
+ /* Called by usb_disconnect to free HC device structures */
void (*free_dev)(struct usb_hcd *, struct usb_device *);
/* Bandwidth computation functions */
*/
int (*update_hub_device)(struct usb_hcd *, struct usb_device *hdev,
struct usb_tt *tt, gfp_t mem_flags);
+ int (*reset_device)(struct usb_hcd *, struct usb_device *);
};
extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);
#define usb_endpoint_out(ep_dir) (!((ep_dir) & USB_DIR_IN))
#ifdef CONFIG_PM
-extern void usb_hcd_resume_root_hub(struct usb_hcd *hcd);
extern void usb_root_hub_lost_power(struct usb_device *rhdev);
extern int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg);
extern int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg);
+#endif /* CONFIG_PM */
+
+#ifdef CONFIG_USB_SUSPEND
+extern void usb_hcd_resume_root_hub(struct usb_hcd *hcd);
#else
static inline void usb_hcd_resume_root_hub(struct usb_hcd *hcd)
{
return;
}
-#endif /* CONFIG_PM */
+#endif /* CONFIG_USB_SUSPEND */
+
/*
* USB device fs stuff
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/freezer.h>
+#include <linux/pm_runtime.h>
#include <asm/uaccess.h>
#include <asm/byteorder.h>
unsigned mA_per_port; /* current for each child */
- unsigned init_done:1;
unsigned limited_power:1;
unsigned quiescing:1;
unsigned disconnected:1;
}
init3:
hub->quiescing = 0;
- hub->init_done = 1;
status = usb_submit_urb(hub->urb, GFP_NOIO);
if (status < 0)
int i;
cancel_delayed_work_sync(&hub->init_work);
- if (!hub->init_done) {
- hub->init_done = 1;
- usb_autopm_put_interface_no_suspend(
- to_usb_interface(hub->intfdev));
- }
/* khubd and related activity won't re-trigger */
hub->quiescing = 1;
desc = intf->cur_altsetting;
hdev = interface_to_usbdev(intf);
+ /* Hubs have proper suspend/resume support */
+ usb_enable_autosuspend(hdev);
+
if (hdev->level == MAX_TOPO_LEVEL) {
dev_err(&intf->dev,
"Unsupported bus topology: hub nested too deep\n");
if (udev->children[i])
recursively_mark_NOTATTACHED(udev->children[i]);
}
- if (udev->state == USB_STATE_SUSPENDED) {
- udev->discon_suspended = 1;
+ if (udev->state == USB_STATE_SUSPENDED)
udev->active_duration -= jiffies;
- }
udev->state = USB_STATE_NOTATTACHED;
}
|| new_state == USB_STATE_SUSPENDED)
; /* No change to wakeup settings */
else if (new_state == USB_STATE_CONFIGURED)
- device_init_wakeup(&udev->dev,
+ device_set_wakeup_capable(&udev->dev,
(udev->actconfig->desc.bmAttributes
& USB_CONFIG_ATT_WAKEUP));
else
- device_init_wakeup(&udev->dev, 0);
+ device_set_wakeup_capable(&udev->dev, 0);
}
if (udev->state == USB_STATE_SUSPENDED &&
new_state != USB_STATE_SUSPENDED)
udev->devnum = devnum;
}
-#ifdef CONFIG_USB_SUSPEND
-
-static void usb_stop_pm(struct usb_device *udev)
+static void hub_free_dev(struct usb_device *udev)
{
- /* Synchronize with the ksuspend thread to prevent any more
- * autosuspend requests from being submitted, and decrement
- * the parent's count of unsuspended children.
- */
- usb_pm_lock(udev);
- if (udev->parent && !udev->discon_suspended)
- usb_autosuspend_device(udev->parent);
- usb_pm_unlock(udev);
+ struct usb_hcd *hcd = bus_to_hcd(udev->bus);
- /* Stop any autosuspend or autoresume requests already submitted */
- cancel_delayed_work_sync(&udev->autosuspend);
- cancel_work_sync(&udev->autoresume);
+ /* Root hubs aren't real devices, so don't free HCD resources */
+ if (hcd->driver->free_dev && udev->parent)
+ hcd->driver->free_dev(hcd, udev);
}
-#else
-
-static inline void usb_stop_pm(struct usb_device *udev)
-{ }
-
-#endif
-
/**
* usb_disconnect - disconnect a device (usbcore-internal)
* @pdev: pointer to device being disconnected
*pdev = NULL;
spin_unlock_irq(&device_state_lock);
- usb_stop_pm(udev);
+ hub_free_dev(udev);
put_device(&udev->dev);
}
{
int err;
- /* Increment the parent's count of unsuspended children */
- if (udev->parent)
- usb_autoresume_device(udev->parent);
+ if (udev->parent) {
+ /* Initialize non-root-hub device wakeup to disabled;
+ * device (un)configuration controls wakeup capable
+ * sysfs power/wakeup controls wakeup enabled/disabled
+ */
+ device_init_wakeup(&udev->dev, 0);
+ device_set_wakeup_enable(&udev->dev, 1);
+ }
+
+ /* Tell the runtime-PM framework the device is active */
+ pm_runtime_set_active(&udev->dev);
+ pm_runtime_enable(&udev->dev);
usb_detect_quirks(udev);
err = usb_enumerate_device(udev); /* Read descriptors */
fail:
usb_set_device_state(udev, USB_STATE_NOTATTACHED);
- usb_stop_pm(udev);
+ pm_runtime_disable(&udev->dev);
+ pm_runtime_set_suspended(&udev->dev);
return err;
}
if (!(portstatus & USB_PORT_STAT_RESET) &&
(portstatus & USB_PORT_STAT_ENABLE)) {
if (hub_is_wusb(hub))
- udev->speed = USB_SPEED_VARIABLE;
+ udev->speed = USB_SPEED_WIRELESS;
else if (portstatus & USB_PORT_STAT_HIGH_SPEED)
udev->speed = USB_SPEED_HIGH;
else if (portstatus & USB_PORT_STAT_LOW_SPEED)
struct usb_device *udev, unsigned int delay)
{
int i, status;
+ struct usb_hcd *hcd;
+ hcd = bus_to_hcd(udev->bus);
/* Block EHCI CF initialization during the port reset.
* Some companion controllers don't like it when they mix.
*/
/* TRSTRCY = 10 ms; plus some extra */
msleep(10 + 40);
update_address(udev, 0);
+ if (hcd->driver->reset_device) {
+ status = hcd->driver->reset_device(hcd, udev);
+ if (status < 0) {
+ dev_err(&udev->dev, "Cannot reset "
+ "HCD device state\n");
+ break;
+ }
+ }
/* FALL THROUGH */
case -ENOTCONN:
case -ENODEV:
}
/* caller has locked udev */
-static int remote_wakeup(struct usb_device *udev)
+int usb_remote_wakeup(struct usb_device *udev)
{
int status = 0;
if (udev->state == USB_STATE_SUSPENDED) {
dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-");
- usb_mark_last_busy(udev);
- status = usb_external_resume_device(udev, PMSG_REMOTE_RESUME);
+ status = usb_autoresume_device(udev);
+ if (status == 0) {
+ /* Let the drivers do their thing, then... */
+ usb_autosuspend_device(udev);
+ }
}
return status;
}
return status;
}
-static inline int remote_wakeup(struct usb_device *udev)
-{
- return 0;
-}
-
#endif
static int hub_suspend(struct usb_interface *intf, pm_message_t msg)
#else /* CONFIG_PM */
-static inline int remote_wakeup(struct usb_device *udev)
-{
- return 0;
-}
-
#define hub_suspend NULL
#define hub_resume NULL
#define hub_reset_resume NULL
mutex_lock(&usb_address0_mutex);
- if ((hcd->driver->flags & HCD_USB3) && udev->config) {
- /* FIXME this will need special handling by the xHCI driver. */
- dev_dbg(&udev->dev,
- "xHCI reset of configured device "
- "not supported yet.\n");
- retval = -EINVAL;
- goto fail;
- } else if (!udev->config && oldspeed == USB_SPEED_SUPER) {
+ if (!udev->config && oldspeed == USB_SPEED_SUPER) {
/* Don't reset USB 3.0 devices during an initial setup */
usb_set_device_state(udev, USB_STATE_DEFAULT);
} else {
*/
switch (udev->speed) {
case USB_SPEED_SUPER:
- case USB_SPEED_VARIABLE: /* fixed at 512 */
+ case USB_SPEED_WIRELESS: /* fixed at 512 */
udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512);
break;
case USB_SPEED_HIGH: /* fixed at 64 */
case USB_SPEED_SUPER:
speed = "super";
break;
- case USB_SPEED_VARIABLE:
+ case USB_SPEED_WIRELESS:
speed = "variable";
type = "Wireless ";
break;
/* For a suspended device, treat this as a
* remote wakeup event.
*/
- status = remote_wakeup(udev);
+ status = usb_remote_wakeup(udev);
#endif
} else {
loop:
usb_ep0_reinit(udev);
release_address(udev);
+ hub_free_dev(udev);
usb_put_dev(udev);
if ((status == -ENOTCONN) || (status == -ENOTSUPP))
break;
* disconnected while waiting for the lock to succeed. */
usb_lock_device(hdev);
if (unlikely(hub->disconnected))
- goto loop2;
+ goto loop_disconnected;
/* If the hub has died, clean up after it */
if (hdev->state == USB_STATE_NOTATTACHED) {
msleep(10);
usb_lock_device(udev);
- ret = remote_wakeup(hdev->
+ ret = usb_remote_wakeup(hdev->
children[i-1]);
usb_unlock_device(udev);
if (ret < 0)
* kick_khubd() and allow autosuspend.
*/
usb_autopm_put_interface(intf);
- loop2:
+ loop_disconnected:
usb_unlock_device(hdev);
kref_put(&hub->kref, hub_release);
return 0;
}
-static struct usb_device_id hub_id_table [] = {
+static const struct usb_device_id hub_id_table[] = {
{ .match_flags = USB_DEVICE_ID_MATCH_DEV_CLASS,
.bDeviceClass = USB_CLASS_HUB},
{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
alt = usb_altnum_to_altsetting(iface, alternate);
if (!alt) {
- dev_warn(&dev->dev, "selecting invalid altsetting %d",
+ dev_warn(&dev->dev, "selecting invalid altsetting %d\n",
alternate);
return -EINVAL;
}
/* If not, reinstate the old alternate settings */
if (retval < 0) {
reset_old_alts:
- for (; i >= 0; i--) {
+ for (i--; i >= 0; i--) {
struct usb_interface *intf = config->interface[i];
struct usb_host_interface *alt;
intf->dev.dma_mask = dev->dev.dma_mask;
INIT_WORK(&intf->reset_ws, __usb_queue_reset_device);
device_initialize(&intf->dev);
- mark_quiesced(intf);
dev_set_name(&intf->dev, "%d-%s:%d.%d",
dev->bus->busnum, dev->devpath,
configuration, alt->desc.bInterfaceNumber);
dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
udev->quirks);
- /* By default, disable autosuspend for all non-hubs */
#ifdef CONFIG_USB_SUSPEND
- if (udev->descriptor.bDeviceClass != USB_CLASS_HUB)
- udev->autosuspend_disabled = 1;
+
+ /* By default, disable autosuspend for all devices. The hub driver
+ * will enable it for hubs.
+ */
+ usb_disable_autosuspend(udev);
+
+ /* Autosuspend can also be disabled if the initial autosuspend_delay
+ * is negative.
+ */
+ if (udev->autosuspend_delay < 0)
+ usb_autoresume_device(udev);
+
#endif
/* For the present, all devices default to USB-PERSIST enabled */
* for all devices. It will affect things like hub resets
* and EMF-related port disables.
*/
- udev->persist_enabled = 1;
+ if (!(udev->quirks & USB_QUIRK_RESET_MORPHS))
+ udev->persist_enabled = 1;
#endif /* CONFIG_PM */
}
case USB_SPEED_HIGH:
speed = "480";
break;
- case USB_SPEED_VARIABLE:
+ case USB_SPEED_WIRELESS:
speed = "480";
break;
case USB_SPEED_SUPER:
}
static DEVICE_ATTR(quirks, S_IRUGO, show_quirks, NULL);
+static ssize_t
+show_avoid_reset_quirk(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct usb_device *udev;
+
+ udev = to_usb_device(dev);
+ return sprintf(buf, "%d\n", !!(udev->quirks & USB_QUIRK_RESET_MORPHS));
+}
+
+static ssize_t
+set_avoid_reset_quirk(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ int config;
+
+ if (sscanf(buf, "%d", &config) != 1 || config < 0 || config > 1)
+ return -EINVAL;
+ usb_lock_device(udev);
+ if (config)
+ udev->quirks |= USB_QUIRK_RESET_MORPHS;
+ else
+ udev->quirks &= ~USB_QUIRK_RESET_MORPHS;
+ usb_unlock_device(udev);
+ return count;
+}
+
+static DEVICE_ATTR(avoid_reset_quirk, S_IRUGO | S_IWUSR,
+ show_avoid_reset_quirk, set_avoid_reset_quirk);
+
static ssize_t
show_urbnum(struct device *dev, struct device_attribute *attr, char *buf)
{
if (sscanf(buf, "%d", &value) != 1)
return -EINVAL;
- usb_pm_lock(udev);
+
+ usb_lock_device(udev);
udev->persist_enabled = !!value;
- usb_pm_unlock(udev);
+ usb_unlock_device(udev);
return count;
}
const char *buf, size_t count)
{
struct usb_device *udev = to_usb_device(dev);
- int value;
+ int value, old_delay;
+ int rc;
if (sscanf(buf, "%d", &value) != 1 || value >= INT_MAX/HZ ||
value <= - INT_MAX/HZ)
return -EINVAL;
value *= HZ;
+ usb_lock_device(udev);
+ old_delay = udev->autosuspend_delay;
udev->autosuspend_delay = value;
- if (value >= 0)
- usb_try_autosuspend_device(udev);
- else {
- if (usb_autoresume_device(udev) == 0)
+
+ if (old_delay < 0) { /* Autosuspend wasn't allowed */
+ if (value >= 0)
usb_autosuspend_device(udev);
+ } else { /* Autosuspend was allowed */
+ if (value < 0) {
+ rc = usb_autoresume_device(udev);
+ if (rc < 0) {
+ count = rc;
+ udev->autosuspend_delay = old_delay;
+ }
+ } else {
+ usb_try_autosuspend_device(udev);
+ }
}
+
+ usb_unlock_device(udev);
return count;
}
struct usb_device *udev = to_usb_device(dev);
int len = count;
char *cp;
- int rc = 0;
- int old_autosuspend_disabled;
+ int rc;
cp = memchr(buf, '\n', count);
if (cp)
len = cp - buf;
usb_lock_device(udev);
- old_autosuspend_disabled = udev->autosuspend_disabled;
- /* Setting the flags without calling usb_pm_lock is a subject to
- * races, but who cares...
- */
if (len == sizeof on_string - 1 &&
- strncmp(buf, on_string, len) == 0) {
- udev->autosuspend_disabled = 1;
- rc = usb_external_resume_device(udev, PMSG_USER_RESUME);
+ strncmp(buf, on_string, len) == 0)
+ rc = usb_disable_autosuspend(udev);
- } else if (len == sizeof auto_string - 1 &&
- strncmp(buf, auto_string, len) == 0) {
- udev->autosuspend_disabled = 0;
- rc = usb_external_resume_device(udev, PMSG_USER_RESUME);
+ else if (len == sizeof auto_string - 1 &&
+ strncmp(buf, auto_string, len) == 0)
+ rc = usb_enable_autosuspend(udev);
- } else
+ else
rc = -EINVAL;
- if (rc)
- udev->autosuspend_disabled = old_autosuspend_disabled;
usb_unlock_device(udev);
return (rc < 0 ? rc : count);
}
&dev_attr_version.attr,
&dev_attr_maxchild.attr,
&dev_attr_quirks.attr,
+ &dev_attr_avoid_reset_quirk.attr,
&dev_attr_authorized.attr,
&dev_attr_remove.attr,
NULL,
{
unsigned int orig_flags = urb->transfer_flags;
unsigned int allowed;
+ static int pipetypes[4] = {
+ PIPE_CONTROL, PIPE_ISOCHRONOUS, PIPE_BULK, PIPE_INTERRUPT
+ };
+
+ /* Check that the pipe's type matches the endpoint's type */
+ if (usb_pipetype(urb->pipe) != pipetypes[xfertype])
+ return -EPIPE; /* The most suitable error code :-) */
/* enforce simple/standard policy */
allowed = (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP |
case USB_ENDPOINT_XFER_INT:
/* too small? */
switch (dev->speed) {
- case USB_SPEED_VARIABLE:
+ case USB_SPEED_WIRELESS:
if (urb->interval < 6)
return -EINVAL;
break;
if (urb->interval > (1 << 15))
return -EINVAL;
max = 1 << 15;
- case USB_SPEED_VARIABLE:
+ case USB_SPEED_WIRELESS:
if (urb->interval > 16)
return -EINVAL;
break;
default:
return -EINVAL;
}
- if (dev->speed != USB_SPEED_VARIABLE) {
+ if (dev->speed != USB_SPEED_WIRELESS) {
/* Round down to a power of 2, no more than max */
urb->interval = min(max, 1 << ilog2(urb->interval));
}
static int nousb; /* Disable USB when built into kernel image */
-/* Workqueue for autosuspend and for remote wakeup of root hubs */
-struct workqueue_struct *ksuspend_usb_wq;
-
#ifdef CONFIG_USB_SUSPEND
static int usb_autosuspend_delay = 2; /* Default delay value,
* in seconds */
hcd = bus_to_hcd(udev->bus);
usb_destroy_configuration(udev);
- /* Root hubs aren't real devices, so don't free HCD resources */
- if (hcd->driver->free_dev && udev->parent)
- hcd->driver->free_dev(hcd, udev);
usb_put_hcd(hcd);
kfree(udev->product);
kfree(udev->manufacturer);
#ifdef CONFIG_PM
-static int ksuspend_usb_init(void)
-{
- /* This workqueue is supposed to be both freezable and
- * singlethreaded. Its job doesn't justify running on more
- * than one CPU.
- */
- ksuspend_usb_wq = create_freezeable_workqueue("ksuspend_usbd");
- if (!ksuspend_usb_wq)
- return -ENOMEM;
- return 0;
-}
-
-static void ksuspend_usb_cleanup(void)
-{
- destroy_workqueue(ksuspend_usb_wq);
-}
-
/* USB device Power-Management thunks.
* There's no need to distinguish here between quiescing a USB device
* and powering it down; the generic_suspend() routine takes care of
static void usb_dev_complete(struct device *dev)
{
/* Currently used only for rebinding interfaces */
- usb_resume(dev, PMSG_RESUME); /* Message event is meaningless */
+ usb_resume(dev, PMSG_ON); /* FIXME: change to PMSG_COMPLETE */
}
static int usb_dev_suspend(struct device *dev)
#else
-#define ksuspend_usb_init() 0
-#define ksuspend_usb_cleanup() do {} while (0)
-#define usb_device_pm_ops (*(struct dev_pm_ops *)0)
+#define usb_device_pm_ops (*(struct dev_pm_ops *) NULL)
#endif /* CONFIG_PM */
INIT_LIST_HEAD(&dev->filelist);
#ifdef CONFIG_PM
- mutex_init(&dev->pm_mutex);
- INIT_DELAYED_WORK(&dev->autosuspend, usb_autosuspend_work);
- INIT_WORK(&dev->autoresume, usb_autoresume_work);
dev->autosuspend_delay = usb_autosuspend_delay * HZ;
dev->connect_time = jiffies;
dev->active_duration = -jiffies;
if (retval)
goto out;
- retval = ksuspend_usb_init();
- if (retval)
- goto out;
retval = bus_register(&usb_bus_type);
if (retval)
goto bus_register_failed;
bus_notifier_failed:
bus_unregister(&usb_bus_type);
bus_register_failed:
- ksuspend_usb_cleanup();
+ usb_debugfs_cleanup();
out:
return retval;
}
usb_hub_cleanup();
bus_unregister_notifier(&usb_bus_type, &usb_bus_nb);
bus_unregister(&usb_bus_type);
- ksuspend_usb_cleanup();
usb_debugfs_cleanup();
}
extern int usb_suspend(struct device *dev, pm_message_t msg);
extern int usb_resume(struct device *dev, pm_message_t msg);
-extern void usb_autosuspend_work(struct work_struct *work);
-extern void usb_autoresume_work(struct work_struct *work);
extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
-extern int usb_external_suspend_device(struct usb_device *udev,
- pm_message_t msg);
-extern int usb_external_resume_device(struct usb_device *udev,
- pm_message_t msg);
-
-static inline void usb_pm_lock(struct usb_device *udev)
-{
- mutex_lock_nested(&udev->pm_mutex, udev->level);
-}
-
-static inline void usb_pm_unlock(struct usb_device *udev)
-{
- mutex_unlock(&udev->pm_mutex);
-}
#else
return 0;
}
-static inline void usb_pm_lock(struct usb_device *udev) {}
-static inline void usb_pm_unlock(struct usb_device *udev) {}
-
#endif
#ifdef CONFIG_USB_SUSPEND
extern void usb_autosuspend_device(struct usb_device *udev);
extern void usb_try_autosuspend_device(struct usb_device *udev);
extern int usb_autoresume_device(struct usb_device *udev);
+extern int usb_remote_wakeup(struct usb_device *dev);
#else
return 0;
}
+static inline int usb_remote_wakeup(struct usb_device *udev)
+{
+ return 0;
+}
+
#endif
-extern struct workqueue_struct *ksuspend_usb_wq;
extern struct bus_type usb_bus_type;
extern struct device_type usb_device_type;
extern struct device_type usb_if_device_type;
for_devices;
}
-/* Interfaces and their "power state" are owned by usbcore */
-
-static inline void mark_active(struct usb_interface *f)
-{
- f->is_active = 1;
-}
-
-static inline void mark_quiesced(struct usb_interface *f)
-{
- f->is_active = 0;
-}
-
-static inline int is_active(const struct usb_interface *f)
-{
- return f->is_active;
-}
-
/* for labeling diagnostics */
extern const char *usbcore_name;
#define USB_DEBUG_DEVNUM 127
-#define DBGP_DATA_TOGGLE 0x8800
-
#ifdef DBGP_DEBUG
#define dbgp_printk printk
static void dbgp_ehci_status(char *str)
static inline void dbgp_printk(const char *fmt, ...) { }
#endif
-static inline u32 dbgp_pid_update(u32 x, u32 tok)
-{
- return ((x ^ DBGP_DATA_TOGGLE) & 0xffff00) | (tok & 0xff);
-}
-
static inline u32 dbgp_len_update(u32 x, u32 len)
{
return (x & ~0x0f) | (len & 0x0f);
#define DBGP_MAX_PACKET 8
#define DBGP_TIMEOUT (250 * 1000)
+#define DBGP_LOOPS 1000
+
+static inline u32 dbgp_pid_write_update(u32 x, u32 tok)
+{
+ static int data0 = USB_PID_DATA1;
+ data0 ^= USB_PID_DATA_TOGGLE;
+ return (x & 0xffff0000) | (data0 << 8) | (tok & 0xff);
+}
+
+static inline u32 dbgp_pid_read_update(u32 x, u32 tok)
+{
+ return (x & 0xffff0000) | (USB_PID_DATA0 << 8) | (tok & 0xff);
+}
static int dbgp_wait_until_complete(void)
{
{
u32 pids, lpid;
int ret;
- int loop = 3;
+ int loop = DBGP_LOOPS;
retry:
writel(ctrl | DBGP_GO, &ehci_debug->control);
*/
if (ret == -DBGP_TIMEOUT && !dbgp_not_safe)
dbgp_not_safe = 1;
+ if (ret == -DBGP_ERR_BAD && --loop > 0)
+ goto retry;
return ret;
}
bytes[i] = (hi >> (8*(i - 4))) & 0xff;
}
-static int dbgp_out(u32 addr, const char *bytes, int size)
+static int dbgp_bulk_write(unsigned devnum, unsigned endpoint,
+ const char *bytes, int size)
{
+ int ret;
+ u32 addr;
u32 pids, ctrl;
+ if (size > DBGP_MAX_PACKET)
+ return -1;
+
+ addr = DBGP_EPADDR(devnum, endpoint);
+
pids = readl(&ehci_debug->pids);
- pids = dbgp_pid_update(pids, USB_PID_OUT);
+ pids = dbgp_pid_write_update(pids, USB_PID_OUT);
ctrl = readl(&ehci_debug->control);
ctrl = dbgp_len_update(ctrl, size);
dbgp_set_data(bytes, size);
writel(addr, &ehci_debug->address);
writel(pids, &ehci_debug->pids);
- return dbgp_wait_until_done(ctrl);
-}
-
-static int dbgp_bulk_write(unsigned devnum, unsigned endpoint,
- const char *bytes, int size)
-{
- int ret;
- int loops = 5;
- u32 addr;
- if (size > DBGP_MAX_PACKET)
- return -1;
-
- addr = DBGP_EPADDR(devnum, endpoint);
-try_again:
- if (loops--) {
- ret = dbgp_out(addr, bytes, size);
- if (ret == -DBGP_ERR_BAD) {
- int try_loops = 3;
- do {
- /* Emit a dummy packet to re-sync communication
- * with the debug device */
- if (dbgp_out(addr, "12345678", 8) >= 0) {
- udelay(2);
- goto try_again;
- }
- } while (try_loops--);
- }
- }
+ ret = dbgp_wait_until_done(ctrl);
return ret;
}
addr = DBGP_EPADDR(devnum, endpoint);
pids = readl(&ehci_debug->pids);
- pids = dbgp_pid_update(pids, USB_PID_IN);
+ pids = dbgp_pid_read_update(pids, USB_PID_IN);
ctrl = readl(&ehci_debug->control);
ctrl = dbgp_len_update(ctrl, size);
return dbgp_bulk_read(devnum, 0, data, size);
}
-
/* Find a PCI capability */
static u32 __init find_cap(u32 num, u32 slot, u32 func, int cap)
{
Say "y" to link the driver statically, or "m" to build a
dynamically linked module.
+config USB_G_NOKIA
+ tristate "Nokia composite gadget"
+ depends on PHONET
+ help
+ The Nokia composite gadget provides support for acm, obex
+ and phonet in only one composite gadget driver.
+
+ It's only really useful for N900 hardware. If you're building
+ a kernel for N900, say Y or M here. If unsure, say N.
+
config USB_G_MULTI
tristate "Multifunction Composite Gadget (EXPERIMENTAL)"
depends on BLOCK && NET
g_printer-objs := printer.o
g_cdc-objs := cdc2.o
g_multi-objs := multi.o
+g_nokia-objs := nokia.o
obj-$(CONFIG_USB_ZERO) += g_zero.o
obj-$(CONFIG_USB_AUDIO) += g_audio.o
obj-$(CONFIG_USB_MIDI_GADGET) += g_midi.o
obj-$(CONFIG_USB_CDC_COMPOSITE) += g_cdc.o
obj-$(CONFIG_USB_G_MULTI) += g_multi.o
+obj-$(CONFIG_USB_G_NOKIA) += g_nokia.o
if (!res)
return -ENXIO;
- if (!request_mem_region(res->start,
- res->end - res->start + 1,
- driver_name)) {
+ if (!request_mem_region(res->start, resource_size(res), driver_name)) {
DBG("someone's using UDC memory\n");
return -EBUSY;
}
udc->ep[3].maxpacket = 64;
}
- udc->udp_baseaddr = ioremap(res->start, res->end - res->start + 1);
+ udc->udp_baseaddr = ioremap(res->start, resource_size(res));
if (!udc->udp_baseaddr) {
retval = -ENOMEM;
goto fail0a;
if (cpu_is_at91rm9200())
gpio_free(udc->board.pullup_pin);
fail0:
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
DBG("%s probe failed, %d\n", driver_name, retval);
return retval;
}
gpio_free(udc->board.pullup_pin);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
clk_put(udc->iclk);
clk_put(udc->fclk);
static int vbus_is_present(struct usba_udc *udc)
{
if (gpio_is_valid(udc->vbus_pin))
- return gpio_get_value(udc->vbus_pin);
+ return gpio_get_value(udc->vbus_pin) ^ udc->vbus_pin_inverted;
/* No Vbus detection: Assume always present */
return 1;
if (!udc->driver)
goto out;
- vbus = gpio_get_value(udc->vbus_pin);
+ vbus = vbus_is_present(udc);
if (vbus != udc->vbus_prev) {
if (vbus) {
toggle_bias(1);
udc->vbus_pin = -ENODEV;
ret = -ENOMEM;
- udc->regs = ioremap(regs->start, regs->end - regs->start + 1);
+ udc->regs = ioremap(regs->start, resource_size(regs));
if (!udc->regs) {
dev_err(&pdev->dev, "Unable to map I/O memory, aborting.\n");
goto err_map_regs;
}
dev_info(&pdev->dev, "MMIO registers at 0x%08lx mapped at %p\n",
(unsigned long)regs->start, udc->regs);
- udc->fifo = ioremap(fifo->start, fifo->end - fifo->start + 1);
+ udc->fifo = ioremap(fifo->start, resource_size(fifo));
if (!udc->fifo) {
dev_err(&pdev->dev, "Unable to map FIFO, aborting.\n");
goto err_map_fifo;
if (gpio_is_valid(pdata->vbus_pin)) {
if (!gpio_request(pdata->vbus_pin, "atmel_usba_udc")) {
udc->vbus_pin = pdata->vbus_pin;
+ udc->vbus_pin_inverted = pdata->vbus_pin_inverted;
ret = request_irq(gpio_to_irq(udc->vbus_pin),
usba_vbus_irq, 0,
struct platform_device *pdev;
int irq;
int vbus_pin;
+ int vbus_pin_inverted;
struct clk *pclk;
struct clk *hclk;
return ep;
}
- } else if (gadget_is_sh (gadget) && USB_ENDPOINT_XFER_INT == type) {
- /* single buffering is enough; maybe 8 byte fifo is too */
- ep = find_ep (gadget, "ep3in-bulk");
- if (ep && ep_matches (gadget, ep, desc))
- return ep;
-
- } else if (gadget_is_mq11xx (gadget) && USB_ENDPOINT_XFER_INT == type) {
- ep = find_ep (gadget, "ep1-bulk");
+#ifdef CONFIG_BLACKFIN
+ } else if (gadget_is_musbhsfc(gadget) || gadget_is_musbhdrc(gadget)) {
+ if ((USB_ENDPOINT_XFER_BULK == type) ||
+ (USB_ENDPOINT_XFER_ISOC == type)) {
+ if (USB_DIR_IN & desc->bEndpointAddress)
+ ep = find_ep (gadget, "ep5in");
+ else
+ ep = find_ep (gadget, "ep6out");
+ } else if (USB_ENDPOINT_XFER_INT == type) {
+ if (USB_DIR_IN & desc->bEndpointAddress)
+ ep = find_ep(gadget, "ep1in");
+ else
+ ep = find_ep(gadget, "ep2out");
+ } else
+ ep = NULL;
if (ep && ep_matches (gadget, ep, desc))
return ep;
+#endif
}
/* Second, look at endpoints until an unclaimed one looks usable */
/*-------------------------------------------------------------------------*/
-#ifdef USB_ETH_EEM
+#ifdef CONFIG_USB_ETH_EEM
static int use_eem = 1;
#else
static int use_eem;
/* Some controllers can't support CDC ACM ... */
static inline bool can_support_cdc(struct usb_configuration *c)
{
- /* SH3 doesn't support multiple interfaces */
- if (gadget_is_sh(c->cdev->gadget))
- return false;
-
- /* sa1100 doesn't have a third interrupt endpoint */
- if (gadget_is_sa1100(c->cdev->gadget))
- return false;
-
/* everything else is *probably* fine ... */
return true;
}
struct net_device *net;
/* Enable zlps by default for ECM conformance;
- * override for musb_hdrc (avoids txdma ovhead)
- * and sa1100 (can't).
+ * override for musb_hdrc (avoids txdma ovhead).
*/
- ecm->port.is_zlp_ok = !(
- gadget_is_sa1100(cdev->gadget)
- || gadget_is_musbhdrc(cdev->gadget)
+ ecm->port.is_zlp_ok = !(gadget_is_musbhdrc(cdev->gadget)
);
ecm->port.cdc_filter = DEFAULT_FILTER;
DBG(cdev, "activate ecm\n");
struct task_struct *thread_task;
/* Callback function to call when thread exits. */
- void (*thread_exits)(struct fsg_common *common);
+ int (*thread_exits)(struct fsg_common *common);
/* Gadget's private data. */
void *private_data;
const char *lun_name_format;
const char *thread_name;
- /* Callback function to call when thread exits. */
- void (*thread_exits)(struct fsg_common *common);
+ /* Callback function to call when thread exits. If no
+ * callback is set or it returns value lower then zero MSF
+ * will force eject all LUNs it operates on (including those
+ * marked as non-removable or with prevent_medium_removal flag
+ * set). */
+ int (*thread_exits)(struct fsg_common *common);
/* Gadget's private data. */
void *private_data;
return -EDOM;
VDBG(fsg, "get max LUN\n");
*(u8 *) req->buf = fsg->common->nluns - 1;
- return 1;
+
+ /* Respond with data/status */
+ req->length = min((u16)1, w_length);
+ fsg->common->ep0req_name =
+ ctrl->bRequestType & USB_DIR_IN ? "ep0-in" : "ep0-out";
+ return ep0_queue(fsg->common);
}
VDBG(fsg,
case FSG_STATE_CONFIG_CHANGE:
rc = do_set_config(common, new_config);
- if (common->ep0_req_tag != exception_req_tag)
- break;
- if (rc != 0) { /* STALL on errors */
- DBG(common, "ep0 set halt\n");
- usb_ep_set_halt(common->ep0);
- } else { /* Complete the status stage */
- ep0_queue(common);
- }
break;
case FSG_STATE_EXIT:
common->thread_task = NULL;
spin_unlock_irq(&common->lock);
- if (common->thread_exits)
- common->thread_exits(common);
+ if (!common->thread_exits || common->thread_exits(common) < 0) {
+ struct fsg_lun *curlun = common->luns;
+ unsigned i = common->nluns;
+
+ down_write(&common->filesem);
+ for (; i--; ++curlun) {
+ if (!fsg_lun_is_open(curlun))
+ continue;
+
+ fsg_lun_close(curlun);
+ curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT;
+ }
+ up_write(&common->filesem);
+ }
/* Let the unbind and cleanup routines know the thread has exited */
complete_and_exit(&common->thread_notifier, 0);
if (cfg->release != 0xffff) {
i = cfg->release;
} else {
- /* The sa1100 controller is not supported */
- i = gadget_is_sa1100(gadget)
- ? -1
- : usb_gadget_controller_number(gadget);
+ i = usb_gadget_controller_number(gadget);
if (i >= 0) {
i = 0x0300 + i;
} else {
* disable stalls.
*/
common->can_stall = cfg->can_stall &&
- !(gadget_is_sh(common->gadget) ||
- gadget_is_at91(common->gadget));
+ !(gadget_is_at91(common->gadget));
spin_lock_init(&common->lock);
/* Call fsg_common_release() directly, ref might be not
* initialised */
fsg_common_release(&common->ref);
- complete(&common->thread_notifier);
return ERR_PTR(rc);
}
/* Some controllers can't support RNDIS ... */
static inline bool can_support_rndis(struct usb_configuration *c)
{
- /* only two endpoints on sa1100 */
- if (gadget_is_sa1100(c->cdev->gadget))
- return false;
-
/* everything else is *presumably* fine */
return true;
}
* halt bulk endpoints correctly. If one of them is present,
* disable stalls.
*/
- if (gadget_is_sh(fsg->gadget) || gadget_is_at91(fsg->gadget))
+ if (gadget_is_at91(fsg->gadget))
mod_data.can_stall = 0;
if (mod_data.release == 0xffff) { // Parameter wasn't set
- /* The sa1100 controller is not supported */
- if (gadget_is_sa1100(fsg->gadget))
- gcnum = -1;
- else
- gcnum = usb_gadget_controller_number(fsg->gadget);
+ gcnum = usb_gadget_controller_number(fsg->gadget);
if (gcnum >= 0)
mod_data.release = 0x0300 + gcnum;
else {
}
/*-------------------------------------------------------------------------*/
-static struct of_device_id __devinitdata qe_udc_match[] = {
+static const struct of_device_id qe_udc_match[] __devinitconst = {
{
.compatible = "fsl,mpc8323-qe-usb",
.data = (void *)PORT_QE,
#define gadget_is_goku(g) 0
#endif
-/* SH3 UDC -- not yet ported 2.4 --> 2.6 */
-#ifdef CONFIG_USB_GADGET_SUPERH
-#define gadget_is_sh(g) !strcmp("sh_udc", (g)->name)
-#else
-#define gadget_is_sh(g) 0
-#endif
-
-/* not yet stable on 2.6 (would help "original Zaurus") */
-#ifdef CONFIG_USB_GADGET_SA1100
-#define gadget_is_sa1100(g) !strcmp("sa1100_udc", (g)->name)
-#else
-#define gadget_is_sa1100(g) 0
-#endif
-
#ifdef CONFIG_USB_GADGET_LH7A40X
#define gadget_is_lh7a40x(g) !strcmp("lh7a40x_udc", (g)->name)
#else
#define gadget_is_lh7a40x(g) 0
#endif
-/* handhelds.org tree (?) */
-#ifdef CONFIG_USB_GADGET_MQ11XX
-#define gadget_is_mq11xx(g) !strcmp("mq11xx_udc", (g)->name)
-#else
-#define gadget_is_mq11xx(g) 0
-#endif
-
#ifdef CONFIG_USB_GADGET_OMAP
#define gadget_is_omap(g) !strcmp("omap_udc", (g)->name)
#else
#define gadget_is_omap(g) 0
#endif
-/* not yet ported 2.4 --> 2.6 */
-#ifdef CONFIG_USB_GADGET_N9604
-#define gadget_is_n9604(g) !strcmp("n9604_udc", (g)->name)
-#else
-#define gadget_is_n9604(g) 0
-#endif
-
/* various unstable versions available */
#ifdef CONFIG_USB_GADGET_PXA27X
#define gadget_is_pxa27x(g) !strcmp("pxa27x_udc", (g)->name)
#define gadget_is_fsl_usb2(g) 0
#endif
-/* Mentor high speed function controller */
-/* from Montavista kernel (?) */
-#ifdef CONFIG_USB_GADGET_MUSBHSFC
-#define gadget_is_musbhsfc(g) !strcmp("musbhsfc_udc", (g)->name)
-#else
-#define gadget_is_musbhsfc(g) 0
-#endif
-
/* Mentor high speed "dual role" controller, in peripheral role */
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
#define gadget_is_musbhdrc(g) !strcmp("musb_hdrc", (g)->name)
#define gadget_is_langwell(g) 0
#endif
-/* from Montavista kernel (?) */
-#ifdef CONFIG_USB_GADGET_MPC8272
-#define gadget_is_mpc8272(g) !strcmp("mpc8272_udc", (g)->name)
-#else
-#define gadget_is_mpc8272(g) 0
-#endif
-
#ifdef CONFIG_USB_GADGET_M66592
#define gadget_is_m66592(g) !strcmp("m66592_udc", (g)->name)
#else
return 0x02;
else if (gadget_is_pxa(gadget))
return 0x03;
- else if (gadget_is_sh(gadget))
- return 0x04;
- else if (gadget_is_sa1100(gadget))
- return 0x05;
else if (gadget_is_goku(gadget))
return 0x06;
- else if (gadget_is_mq11xx(gadget))
- return 0x07;
else if (gadget_is_omap(gadget))
return 0x08;
else if (gadget_is_lh7a40x(gadget))
return 0x09;
- else if (gadget_is_n9604(gadget))
- return 0x10;
else if (gadget_is_pxa27x(gadget))
return 0x11;
else if (gadget_is_s3c2410(gadget))
return 0x13;
else if (gadget_is_imx(gadget))
return 0x14;
- else if (gadget_is_musbhsfc(gadget))
- return 0x15;
else if (gadget_is_musbhdrc(gadget))
return 0x16;
- else if (gadget_is_mpc8272(gadget))
- return 0x17;
else if (gadget_is_atmel_usba(gadget))
return 0x18;
else if (gadget_is_fsl_usb2(gadget))
if (gadget_is_pxa27x(gadget))
return false;
- /* SH3 hardware just doesn't do altsettings */
- if (gadget_is_sh(gadget))
- return false;
-
/* Everything else is *presumably* fine ... */
return true;
}
}
#endif
- if (gadget_is_sa1100(gadget) && dev->config) {
- /* tx fifo is full, but we can't clear it...*/
- ERROR(dev, "can't change configurations\n");
- return -ESPIPE;
- }
gmidi_reset_config(dev);
switch (number) {
/*-------------------------------------------------------------------------*/
-static struct pci_device_id pci_ids [] = { {
+static const struct pci_device_id pci_ids[] = { {
.class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
.class_mask = ~0,
.vendor = 0x102f, /* Toshiba */
};
struct ep_data {
- struct semaphore lock;
+ struct mutex lock;
enum ep_state state;
atomic_t count;
struct dev_data *dev;
int val;
if (f_flags & O_NONBLOCK) {
- if (down_trylock (&epdata->lock) != 0)
+ if (!mutex_trylock(&epdata->lock))
goto nonblock;
if (epdata->state != STATE_EP_ENABLED) {
- up (&epdata->lock);
+ mutex_unlock(&epdata->lock);
nonblock:
val = -EAGAIN;
} else
return val;
}
- if ((val = down_interruptible (&epdata->lock)) < 0)
+ val = mutex_lock_interruptible(&epdata->lock);
+ if (val < 0)
return val;
switch (epdata->state) {
// FALLTHROUGH
case STATE_EP_UNBOUND: /* clean disconnect */
val = -ENODEV;
- up (&epdata->lock);
+ mutex_unlock(&epdata->lock);
}
return val;
}
if (likely (data->ep != NULL))
usb_ep_set_halt (data->ep);
spin_unlock_irq (&data->dev->lock);
- up (&data->lock);
+ mutex_unlock(&data->lock);
return -EBADMSG;
}
value = -EFAULT;
free1:
- up (&data->lock);
+ mutex_unlock(&data->lock);
kfree (kbuf);
return value;
}
if (likely (data->ep != NULL))
usb_ep_set_halt (data->ep);
spin_unlock_irq (&data->dev->lock);
- up (&data->lock);
+ mutex_unlock(&data->lock);
return -EBADMSG;
}
VDEBUG (data->dev, "%s write %zu IN, status %d\n",
data->name, len, (int) value);
free1:
- up (&data->lock);
+ mutex_unlock(&data->lock);
kfree (kbuf);
return value;
}
struct ep_data *data = fd->private_data;
int value;
- if ((value = down_interruptible(&data->lock)) < 0)
+ value = mutex_lock_interruptible(&data->lock);
+ if (value < 0)
return value;
/* clean up if this can be reopened */
data->hs_desc.bDescriptorType = 0;
usb_ep_disable(data->ep);
}
- up (&data->lock);
+ mutex_unlock(&data->lock);
put_ep (data);
return 0;
}
} else
status = -ENODEV;
spin_unlock_irq (&data->dev->lock);
- up (&data->lock);
+ mutex_unlock(&data->lock);
return status;
}
value = -ENODEV;
spin_unlock_irq(&epdata->dev->lock);
- up(&epdata->lock);
+ mutex_unlock(&epdata->lock);
if (unlikely(value)) {
kfree(priv);
u32 tag;
int value, length = len;
- if ((value = down_interruptible (&data->lock)) < 0)
+ value = mutex_lock_interruptible(&data->lock);
+ if (value < 0)
return value;
if (data->state != STATE_EP_READY) {
data->desc.bDescriptorType = 0;
data->hs_desc.bDescriptorType = 0;
}
- up (&data->lock);
+ mutex_unlock(&data->lock);
return value;
fail0:
value = -EINVAL;
struct ep_data *data = inode->i_private;
int value = -EBUSY;
- if (down_interruptible (&data->lock) != 0)
+ if (mutex_lock_interruptible(&data->lock) != 0)
return -EINTR;
spin_lock_irq (&data->dev->lock);
if (data->dev->state == STATE_DEV_UNBOUND)
DBG (data->dev, "%s state %d\n",
data->name, data->state);
spin_unlock_irq (&data->dev->lock);
- up (&data->lock);
+ mutex_unlock(&data->lock);
return value;
}
if (!data)
goto enomem0;
data->state = STATE_EP_DISABLED;
- init_MUTEX (&data->lock);
+ mutex_init(&data->lock);
init_waitqueue_head (&data->wait);
strncpy (data->name, ep->name, sizeof (data->name) - 1);
static unsigned long msg_registered = 0;
static void msg_cleanup(void);
+static int msg_thread_exits(struct fsg_common *common)
+{
+ msg_cleanup();
+ return 0;
+}
+
static int __init msg_do_config(struct usb_configuration *c)
{
struct fsg_common *common;
}
fsg_config_from_params(&config, &mod_data);
- config.thread_exits = (void(*)(struct fsg_common*))&msg_cleanup;
+ config.thread_exits = msg_thread_exits;
common = fsg_common_init(0, c->cdev, &config);
if (IS_ERR(common))
return PTR_ERR(common);
--- /dev/null
+/*
+ * nokia.c -- Nokia Composite Gadget Driver
+ *
+ * Copyright (C) 2008-2010 Nokia Corporation
+ * Contact: Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This gadget driver borrows from serial.c which is:
+ *
+ * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
+ * Copyright (C) 2008 by David Brownell
+ * Copyright (C) 2008 by Nokia Corporation
+ *
+ * This software is distributed under the terms of the GNU General
+ * Public License ("GPL") as published by the Free Software Foundation,
+ * version 2 of that License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/utsname.h>
+#include <linux/device.h>
+
+#include "u_serial.h"
+#include "u_ether.h"
+#include "u_phonet.h"
+#include "gadget_chips.h"
+
+/* Defines */
+
+#define NOKIA_VERSION_NUM 0x0211
+#define NOKIA_LONG_NAME "N900 (PC-Suite Mode)"
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Kbuild is not very cooperative with respect to linking separately
+ * compiled library objects into one module. So for now we won't use
+ * separate compilation ... ensuring init/exit sections work to shrink
+ * the runtime footprint, and giving us at least some parts of what
+ * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
+ */
+#include "composite.c"
+#include "usbstring.c"
+#include "config.c"
+#include "epautoconf.c"
+
+#include "u_serial.c"
+#include "f_acm.c"
+#include "f_ecm.c"
+#include "f_obex.c"
+#include "f_serial.c"
+#include "f_phonet.c"
+#include "u_ether.c"
+
+/*-------------------------------------------------------------------------*/
+
+#define NOKIA_VENDOR_ID 0x0421 /* Nokia */
+#define NOKIA_PRODUCT_ID 0x01c8 /* Nokia Gadget */
+
+/* string IDs are assigned dynamically */
+
+#define STRING_MANUFACTURER_IDX 0
+#define STRING_PRODUCT_IDX 1
+#define STRING_DESCRIPTION_IDX 2
+
+static char manufacturer_nokia[] = "Nokia";
+static const char product_nokia[] = NOKIA_LONG_NAME;
+static const char description_nokia[] = "PC-Suite Configuration";
+
+static struct usb_string strings_dev[] = {
+ [STRING_MANUFACTURER_IDX].s = manufacturer_nokia,
+ [STRING_PRODUCT_IDX].s = NOKIA_LONG_NAME,
+ [STRING_DESCRIPTION_IDX].s = description_nokia,
+ { } /* end of list */
+};
+
+static struct usb_gadget_strings stringtab_dev = {
+ .language = 0x0409, /* en-us */
+ .strings = strings_dev,
+};
+
+static struct usb_gadget_strings *dev_strings[] = {
+ &stringtab_dev,
+ NULL,
+};
+
+static struct usb_device_descriptor device_desc = {
+ .bLength = USB_DT_DEVICE_SIZE,
+ .bDescriptorType = USB_DT_DEVICE,
+ .bcdUSB = __constant_cpu_to_le16(0x0200),
+ .bDeviceClass = USB_CLASS_COMM,
+ .idVendor = __constant_cpu_to_le16(NOKIA_VENDOR_ID),
+ .idProduct = __constant_cpu_to_le16(NOKIA_PRODUCT_ID),
+ /* .iManufacturer = DYNAMIC */
+ /* .iProduct = DYNAMIC */
+ .bNumConfigurations = 1,
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* Module */
+MODULE_DESCRIPTION("Nokia composite gadget driver for N900");
+MODULE_AUTHOR("Felipe Balbi");
+MODULE_LICENSE("GPL");
+
+/*-------------------------------------------------------------------------*/
+
+static u8 hostaddr[ETH_ALEN];
+
+static int __init nokia_bind_config(struct usb_configuration *c)
+{
+ int status = 0;
+
+ status = phonet_bind_config(c);
+ if (status)
+ printk(KERN_DEBUG "could not bind phonet config\n");
+
+ status = obex_bind_config(c, 0);
+ if (status)
+ printk(KERN_DEBUG "could not bind obex config %d\n", 0);
+
+ status = obex_bind_config(c, 1);
+ if (status)
+ printk(KERN_DEBUG "could not bind obex config %d\n", 0);
+
+ status = acm_bind_config(c, 2);
+ if (status)
+ printk(KERN_DEBUG "could not bind acm config\n");
+
+ status = ecm_bind_config(c, hostaddr);
+ if (status)
+ printk(KERN_DEBUG "could not bind ecm config\n");
+
+ return status;
+}
+
+static struct usb_configuration nokia_config_500ma_driver = {
+ .label = "Bus Powered",
+ .bind = nokia_bind_config,
+ .bConfigurationValue = 1,
+ /* .iConfiguration = DYNAMIC */
+ .bmAttributes = USB_CONFIG_ATT_ONE,
+ .bMaxPower = 250, /* 500mA */
+};
+
+static struct usb_configuration nokia_config_100ma_driver = {
+ .label = "Self Powered",
+ .bind = nokia_bind_config,
+ .bConfigurationValue = 2,
+ /* .iConfiguration = DYNAMIC */
+ .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
+ .bMaxPower = 50, /* 100 mA */
+};
+
+static int __init nokia_bind(struct usb_composite_dev *cdev)
+{
+ int gcnum;
+ struct usb_gadget *gadget = cdev->gadget;
+ int status;
+
+ status = gphonet_setup(cdev->gadget);
+ if (status < 0)
+ goto err_phonet;
+
+ status = gserial_setup(cdev->gadget, 3);
+ if (status < 0)
+ goto err_serial;
+
+ status = gether_setup(cdev->gadget, hostaddr);
+ if (status < 0)
+ goto err_ether;
+
+ status = usb_string_id(cdev);
+ if (status < 0)
+ goto err_usb;
+ strings_dev[STRING_MANUFACTURER_IDX].id = status;
+
+ device_desc.iManufacturer = status;
+
+ status = usb_string_id(cdev);
+ if (status < 0)
+ goto err_usb;
+ strings_dev[STRING_PRODUCT_IDX].id = status;
+
+ device_desc.iProduct = status;
+
+ /* config description */
+ status = usb_string_id(cdev);
+ if (status < 0)
+ goto err_usb;
+ strings_dev[STRING_DESCRIPTION_IDX].id = status;
+
+ nokia_config_500ma_driver.iConfiguration = status;
+ nokia_config_100ma_driver.iConfiguration = status;
+
+ /* set up other descriptors */
+ gcnum = usb_gadget_controller_number(gadget);
+ if (gcnum >= 0)
+ device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM);
+ else {
+ /* this should only work with hw that supports altsettings
+ * and several endpoints, anything else, panic.
+ */
+ pr_err("nokia_bind: controller '%s' not recognized\n",
+ gadget->name);
+ goto err_usb;
+ }
+
+ /* finaly register the configuration */
+ status = usb_add_config(cdev, &nokia_config_500ma_driver);
+ if (status < 0)
+ goto err_usb;
+
+ status = usb_add_config(cdev, &nokia_config_100ma_driver);
+ if (status < 0)
+ goto err_usb;
+
+ dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
+
+ return 0;
+
+err_usb:
+ gether_cleanup();
+err_ether:
+ gserial_cleanup();
+err_serial:
+ gphonet_cleanup();
+err_phonet:
+ return status;
+}
+
+static int __exit nokia_unbind(struct usb_composite_dev *cdev)
+{
+ gphonet_cleanup();
+ gserial_cleanup();
+ gether_cleanup();
+
+ return 0;
+}
+
+static struct usb_composite_driver nokia_driver = {
+ .name = "g_nokia",
+ .dev = &device_desc,
+ .strings = dev_strings,
+ .bind = nokia_bind,
+ .unbind = __exit_p(nokia_unbind),
+};
+
+static int __init nokia_init(void)
+{
+ return usb_composite_register(&nokia_driver);
+}
+module_init(nokia_init);
+
+static void __exit nokia_cleanup(void)
+{
+ usb_composite_unregister(&nokia_driver);
+}
+module_exit(nokia_cleanup);
+
int result = 0;
struct usb_gadget *gadget = dev->gadget;
- if (gadget_is_sa1100(gadget) && dev->config) {
- /* tx fifo is full, but we can't clear it...*/
- INFO(dev, "can't change configurations\n");
- return -ESPIPE;
- }
-
switch (number) {
case DEV_CONFIG_VALUE:
result = 0;
{
int result = 0;
- if (gadget_is_sa1100(dev->gadget) && dev->interface < 0) {
- /* tx fifo is full, but we can't clear it...*/
- INFO(dev, "can't change interfaces\n");
- return -ESPIPE;
- }
-
/* Free the current interface */
switch (dev->interface) {
case PRINTER_INTERFACE:
goto fail;
}
- if (gadget_is_sa1100(gadget)) {
- /* hardware can't write zero length packets. */
- ERROR(dev, "SA1100 controller is unsupport by this driver\n");
- goto fail;
- }
-
gcnum = usb_gadget_controller_number(gadget);
if (gcnum >= 0) {
device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
* @ep: pxa physical endpoint
* @req: pxa request
* @status: usb request status sent to gadget API
+ * @pflags: flags of previous spinlock_irq_save() or NULL if no lock held
*
- * Context: ep->lock held
+ * Context: ep->lock held if flags not NULL, else ep->lock released
*
* Retire a pxa27x usb request. Endpoint must be locked.
*/
-static void req_done(struct pxa_ep *ep, struct pxa27x_request *req, int status)
+static void req_done(struct pxa_ep *ep, struct pxa27x_request *req, int status,
+ unsigned long *pflags)
{
+ unsigned long flags;
+
ep_del_request(ep, req);
if (likely(req->req.status == -EINPROGRESS))
req->req.status = status;
&req->req, status,
req->req.actual, req->req.length);
+ if (pflags)
+ spin_unlock_irqrestore(&ep->lock, *pflags);
+ local_irq_save(flags);
req->req.complete(&req->udc_usb_ep->usb_ep, &req->req);
+ local_irq_restore(flags);
+ if (pflags)
+ spin_lock_irqsave(&ep->lock, *pflags);
}
/**
* ep_end_out_req - Ends endpoint OUT request
* @ep: physical endpoint
* @req: pxa request
+ * @pflags: flags of previous spinlock_irq_save() or NULL if no lock held
*
- * Context: ep->lock held
+ * Context: ep->lock held or released (see req_done())
*
* Ends endpoint OUT request (completes usb request).
*/
-static void ep_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req)
+static void ep_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req,
+ unsigned long *pflags)
{
inc_ep_stats_reqs(ep, !USB_DIR_IN);
- req_done(ep, req, 0);
+ req_done(ep, req, 0, pflags);
}
/**
* ep0_end_out_req - Ends control endpoint OUT request (ends data stage)
* @ep: physical endpoint
* @req: pxa request
+ * @pflags: flags of previous spinlock_irq_save() or NULL if no lock held
*
- * Context: ep->lock held
+ * Context: ep->lock held or released (see req_done())
*
* Ends control endpoint OUT request (completes usb request), and puts
* control endpoint into idle state
*/
-static void ep0_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req)
+static void ep0_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req,
+ unsigned long *pflags)
{
set_ep0state(ep->dev, OUT_STATUS_STAGE);
- ep_end_out_req(ep, req);
+ ep_end_out_req(ep, req, pflags);
ep0_idle(ep->dev);
}
* ep_end_in_req - Ends endpoint IN request
* @ep: physical endpoint
* @req: pxa request
+ * @pflags: flags of previous spinlock_irq_save() or NULL if no lock held
*
- * Context: ep->lock held
+ * Context: ep->lock held or released (see req_done())
*
* Ends endpoint IN request (completes usb request).
*/
-static void ep_end_in_req(struct pxa_ep *ep, struct pxa27x_request *req)
+static void ep_end_in_req(struct pxa_ep *ep, struct pxa27x_request *req,
+ unsigned long *pflags)
{
inc_ep_stats_reqs(ep, USB_DIR_IN);
- req_done(ep, req, 0);
+ req_done(ep, req, 0, pflags);
}
/**
* ep0_end_in_req - Ends control endpoint IN request (ends data stage)
* @ep: physical endpoint
* @req: pxa request
+ * @pflags: flags of previous spinlock_irq_save() or NULL if no lock held
*
- * Context: ep->lock held
+ * Context: ep->lock held or released (see req_done())
*
* Ends control endpoint IN request (completes usb request), and puts
* control endpoint into status state
*/
-static void ep0_end_in_req(struct pxa_ep *ep, struct pxa27x_request *req)
+static void ep0_end_in_req(struct pxa_ep *ep, struct pxa27x_request *req,
+ unsigned long *pflags)
{
set_ep0state(ep->dev, IN_STATUS_STAGE);
- ep_end_in_req(ep, req);
+ ep_end_in_req(ep, req, pflags);
}
/**
* @ep: pxa endpoint
* @status: usb request status
*
- * Context: ep->lock held
+ * Context: ep->lock released
*
* Dequeues all requests on an endpoint. As a side effect, interrupts will be
* disabled on that endpoint (because no more requests).
*/
static void nuke(struct pxa_ep *ep, int status)
{
- struct pxa27x_request *req;
+ struct pxa27x_request *req;
+ unsigned long flags;
+ spin_lock_irqsave(&ep->lock, flags);
while (!list_empty(&ep->queue)) {
req = list_entry(ep->queue.next, struct pxa27x_request, queue);
- req_done(ep, req, status);
+ req_done(ep, req, status, &flags);
}
+ spin_unlock_irqrestore(&ep->lock, flags);
}
/**
int rc = 0;
int is_first_req;
unsigned length;
+ int recursion_detected;
req = container_of(_req, struct pxa27x_request, req);
udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep);
return -EMSGSIZE;
spin_lock_irqsave(&ep->lock, flags);
+ recursion_detected = ep->in_handle_ep;
is_first_req = list_empty(&ep->queue);
ep_dbg(ep, "queue req %p(first=%s), len %d buf %p\n",
if (!ep->enabled) {
_req->status = -ESHUTDOWN;
rc = -ESHUTDOWN;
- goto out;
+ goto out_locked;
}
if (req->in_use) {
ep_err(ep, "refusing to queue req %p (already queued)\n", req);
- goto out;
+ goto out_locked;
}
length = _req->length;
_req->actual = 0;
ep_add_request(ep, req);
+ spin_unlock_irqrestore(&ep->lock, flags);
if (is_ep0(ep)) {
switch (dev->ep0state) {
case WAIT_ACK_SET_CONF_INTERF:
if (length == 0) {
- ep_end_in_req(ep, req);
+ ep_end_in_req(ep, req, NULL);
} else {
ep_err(ep, "got a request of %d bytes while"
"in state WAIT_ACK_SET_CONF_INTERF\n",
case IN_DATA_STAGE:
if (!ep_is_full(ep))
if (write_ep0_fifo(ep, req))
- ep0_end_in_req(ep, req);
+ ep0_end_in_req(ep, req, NULL);
break;
case OUT_DATA_STAGE:
if ((length == 0) || !epout_has_pkt(ep))
if (read_ep0_fifo(ep, req))
- ep0_end_out_req(ep, req);
+ ep0_end_out_req(ep, req, NULL);
break;
default:
ep_err(ep, "odd state %s to send me a request\n",
break;
}
} else {
- handle_ep(ep);
+ if (!recursion_detected)
+ handle_ep(ep);
}
out:
- spin_unlock_irqrestore(&ep->lock, flags);
return rc;
+out_locked:
+ spin_unlock_irqrestore(&ep->lock, flags);
+ goto out;
}
/**
/* make sure it's actually queued on this endpoint */
list_for_each_entry(req, &ep->queue, queue) {
if (&req->req == _req) {
- req_done(ep, req, -ECONNRESET);
rc = 0;
break;
}
}
spin_unlock_irqrestore(&ep->lock, flags);
+ if (!rc)
+ req_done(ep, req, -ECONNRESET, NULL);
return rc;
}
{
struct pxa_ep *ep;
struct udc_usb_ep *udc_usb_ep;
- unsigned long flags;
if (!_ep)
return -EINVAL;
if (!ep || is_ep0(ep) || !list_empty(&ep->queue))
return -EINVAL;
- spin_lock_irqsave(&ep->lock, flags);
ep->enabled = 0;
nuke(ep, -ESHUTDOWN);
- spin_unlock_irqrestore(&ep->lock, flags);
pxa_ep_fifo_flush(_ep);
udc_usb_ep->pxa_ep = NULL;
} u;
int i;
int have_extrabytes = 0;
+ unsigned long flags;
nuke(ep, -EPROTO);
+ spin_lock_irqsave(&ep->lock, flags);
/*
* In the PXA320 manual, in the section about Back-to-Back setup
/* Tell UDC to enter Data Stage */
ep_write_UDCCSR(ep, UDCCSR0_SA | UDCCSR0_OPC);
+ spin_unlock_irqrestore(&ep->lock, flags);
i = udc->driver->setup(&udc->gadget, &u.r);
+ spin_lock_irqsave(&ep->lock, flags);
if (i < 0)
goto stall;
out:
+ spin_unlock_irqrestore(&ep->lock, flags);
return;
stall:
ep_dbg(ep, "protocol STALL, udccsr0=%03x err %d\n",
if (req && !ep_is_full(ep))
completed = write_ep0_fifo(ep, req);
if (completed)
- ep0_end_in_req(ep, req);
+ ep0_end_in_req(ep, req, NULL);
break;
case OUT_DATA_STAGE: /* SET_DESCRIPTOR */
if (epout_has_pkt(ep) && req)
completed = read_ep0_fifo(ep, req);
if (completed)
- ep0_end_out_req(ep, req);
+ ep0_end_out_req(ep, req, NULL);
break;
case STALL:
ep_write_UDCCSR(ep, UDCCSR0_FST);
* Tries to transfer all pending request data into the endpoint and/or
* transfer all pending data in the endpoint into usb requests.
*
- * Is always called when in_interrupt() or with ep->lock held.
+ * Is always called when in_interrupt() and with ep->lock released.
*/
static void handle_ep(struct pxa_ep *ep)
{
u32 udccsr;
int is_in = ep->dir_in;
int loop = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ep->lock, flags);
+ if (ep->in_handle_ep)
+ goto recursion_detected;
+ ep->in_handle_ep = 1;
do {
completed = 0;
udccsr = udc_ep_readl(ep, UDCCSR);
+
if (likely(!list_empty(&ep->queue)))
req = list_entry(ep->queue.next,
struct pxa27x_request, queue);
if (unlikely(is_in)) {
if (likely(!ep_is_full(ep)))
completed = write_fifo(ep, req);
- if (completed)
- ep_end_in_req(ep, req);
} else {
if (likely(epout_has_pkt(ep)))
completed = read_fifo(ep, req);
- if (completed)
- ep_end_out_req(ep, req);
+ }
+
+ if (completed) {
+ if (is_in)
+ ep_end_in_req(ep, req, &flags);
+ else
+ ep_end_out_req(ep, req, &flags);
}
} while (completed);
+
+ ep->in_handle_ep = 0;
+recursion_detected:
+ spin_unlock_irqrestore(&ep->lock, flags);
}
/**
continue;
udc_writel(udc, UDCISR0, UDCISR_INT(i, UDCISR_INT_MASK));
- ep = &udc->pxa_ep[i];
- ep->stats.irqs++;
- handle_ep(ep);
+
+ WARN_ON(i >= ARRAY_SIZE(udc->pxa_ep));
+ if (i < ARRAY_SIZE(udc->pxa_ep)) {
+ ep = &udc->pxa_ep[i];
+ ep->stats.irqs++;
+ handle_ep(ep);
+ }
}
for (i = 16; udcisr1 != 0 && i < 24; udcisr1 >>= 2, i++) {
if (!(udcisr1 & UDCISR_INT_MASK))
continue;
- ep = &udc->pxa_ep[i];
- ep->stats.irqs++;
- handle_ep(ep);
+ WARN_ON(i >= ARRAY_SIZE(udc->pxa_ep));
+ if (i < ARRAY_SIZE(udc->pxa_ep)) {
+ ep = &udc->pxa_ep[i];
+ ep->stats.irqs++;
+ handle_ep(ep);
+ }
}
}
}
retval = -ENOMEM;
- udc->regs = ioremap(regs->start, regs->end - regs->start + 1);
+ udc->regs = ioremap(regs->start, resource_size(regs));
if (!udc->regs) {
dev_err(&pdev->dev, "Unable to map UDC I/O memory\n");
goto err_map;
* @queue: requests queue
* @lock: lock to pxa_ep data (queues and stats)
* @enabled: true when endpoint enabled (not stopped by gadget layer)
+ * @in_handle_ep: number of recursions of handle_ep() function
+ * Prevents deadlocks or infinite recursions of types :
+ * irq->handle_ep()->req_done()->req.complete()->pxa_ep_queue()->handle_ep()
+ * or
+ * pxa_ep_queue()->handle_ep()->req_done()->req.complete()->pxa_ep_queue()
* @idx: endpoint index (1 => epA, 2 => epB, ..., 24 => epX)
* @name: endpoint name (for trace/debug purpose)
* @dir_in: 1 if IN endpoint, 0 if OUT endpoint
spinlock_t lock; /* Protects this structure */
/* (queues, stats) */
unsigned enabled:1;
+ unsigned in_handle_ep:1;
unsigned idx:5;
char *name;
*
* Allocate a new USB request structure appropriate for the specified endpoint
*/
-struct usb_request *s3c_hsotg_ep_alloc_request(struct usb_ep *ep, gfp_t flags)
+static struct usb_request *s3c_hsotg_ep_alloc_request(struct usb_ep *ep,
+ gfp_t flags)
{
struct s3c_hsotg_req *req;
req->dma = DMA_ADDR_INVALID;
hs_req->mapped = 0;
} else {
- dma_sync_single(hsotg->dev, req->dma, req->length, dir);
+ dma_sync_single_for_cpu(hsotg->dev, req->dma, req->length, dir);
}
}
hs_req->mapped = 1;
req->dma = dma;
} else {
- dma_sync_single(hsotg->dev, req->dma, req->length, dir);
+ dma_sync_single_for_cpu(hsotg->dev, req->dma, req->length, dir);
hs_req->mapped = 0;
}
* as the actual data should be sent to the memory directly and we turn
* on the completion interrupts to get notifications of transfer completion.
*/
-void s3c_hsotg_handle_rx(struct s3c_hsotg *hsotg)
+static void s3c_hsotg_handle_rx(struct s3c_hsotg *hsotg)
{
u32 grxstsr = readl(hsotg->regs + S3C_GRXSTSP);
u32 epnum, status, size;
local_irq_restore(flags);
}
-struct s3c_hsotg_plat s3c_hsotg_default_pdata;
+static struct s3c_hsotg_plat s3c_hsotg_default_pdata;
static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
{
.ndo_validate_addr = eth_validate_addr,
};
+static struct device_type gadget_type = {
+ .name = "gadget",
+};
+
/**
* gether_setup - initialize one ethernet-over-usb link
* @g: gadget to associated with these links
dev->gadget = g;
SET_NETDEV_DEV(net, &g->dev);
+ SET_NETDEV_DEVTYPE(net, &gadget_type);
status = register_netdev(net);
if (status < 0) {
if (!gadget_supports_altsettings(gadget))
return false;
- /* SA1100 can do ECM, *without* status endpoint ... but we'll
- * only use it in non-ECM mode for backwards compatibility
- * (and since we currently require a status endpoint)
- */
- if (gadget_is_sa1100(gadget))
- return false;
-
/* Everything else is *presumably* fine ... but this is a bit
* chancy, so be **CERTAIN** there are no hardware issues with
* your controller. Add it above if it can't handle CDC.
*/
if (loopdefault) {
loopback_add(cdev, autoresume != 0);
- if (!gadget_is_sh(gadget))
- sourcesink_add(cdev, autoresume != 0);
+ sourcesink_add(cdev, autoresume != 0);
} else {
sourcesink_add(cdev, autoresume != 0);
- if (!gadget_is_sh(gadget))
- loopback_add(cdev, autoresume != 0);
+ loopback_add(cdev, autoresume != 0);
}
gcnum = usb_gadget_controller_number(gadget);
To compile this driver a module, choose M here: the module
will be called "hwa-hc".
+
+config USB_IMX21_HCD
+ tristate "iMX21 HCD support"
+ depends on USB && ARM && MACH_MX21
+ help
+ This driver enables support for the on-chip USB host in the
+ iMX21 processor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called "imx21-hcd".
+
obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o
obj-$(CONFIG_USB_ISP1760_HCD) += isp1760.o
obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o
+obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd.o
+
goto fail_request_resource;
}
hcd->rsrc_start = res->start;
- hcd->rsrc_len = res->end - res->start + 1;
+ hcd->rsrc_len = resource_size(res);
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
{
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
+ struct resource *res;
int ret;
if (usb_disabled())
if (!hcd)
return -ENOMEM;
- hcd->rsrc_start = pdev->resource[0].start;
- hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ hcd->rsrc_start = res->start;
+ hcd->rsrc_len = resource_size(res);
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
pr_debug("request_mem_region failed");
/*
- * Copyright (c) 2005 MontaVista Software
+ * Copyright 2005-2009 MontaVista Software, Inc.
+ * Copyright 2008 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
*
* Ported to 834x by Randy Vinson <rvinson@mvista.com> using code provided
* by Hunter Wu.
+ * Power Management support by Dave Liu <daveliu@freescale.com>,
+ * Jerry Huang <Chang-Ming.Huang@freescale.com> and
+ * Anton Vorontsov <avorontsov@ru.mvista.com>.
*/
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>
#include "ehci-fsl.h"
-/* FIXME: Power Management is un-ported so temporarily disable it */
-#undef CONFIG_PM
-
-
/* configure so an HC device and id are always provided */
/* always called with process context; sleeping is OK */
* Allocates basic resources for this USB host controller.
*
*/
-int usb_hcd_fsl_probe(const struct hc_driver *driver,
- struct platform_device *pdev)
+static int usb_hcd_fsl_probe(const struct hc_driver *driver,
+ struct platform_device *pdev)
{
struct fsl_usb2_platform_data *pdata;
struct usb_hcd *hcd;
* Reverses the effect of usb_hcd_fsl_probe().
*
*/
-void usb_hcd_fsl_remove(struct usb_hcd *hcd, struct platform_device *pdev)
+static void usb_hcd_fsl_remove(struct usb_hcd *hcd,
+ struct platform_device *pdev)
{
usb_remove_hcd(hcd);
iounmap(hcd->regs);
return retval;
}
+struct ehci_fsl {
+ struct ehci_hcd ehci;
+
+#ifdef CONFIG_PM
+ /* Saved USB PHY settings, need to restore after deep sleep. */
+ u32 usb_ctrl;
+#endif
+};
+
+#ifdef CONFIG_PM
+
+static struct ehci_fsl *hcd_to_ehci_fsl(struct usb_hcd *hcd)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+
+ return container_of(ehci, struct ehci_fsl, ehci);
+}
+
+static int ehci_fsl_drv_suspend(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
+ void __iomem *non_ehci = hcd->regs;
+
+ if (!fsl_deep_sleep())
+ return 0;
+
+ ehci_fsl->usb_ctrl = in_be32(non_ehci + FSL_SOC_USB_CTRL);
+ return 0;
+}
+
+static int ehci_fsl_drv_resume(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ void __iomem *non_ehci = hcd->regs;
+
+ if (!fsl_deep_sleep())
+ return 0;
+
+ usb_root_hub_lost_power(hcd->self.root_hub);
+
+ /* Restore USB PHY settings and enable the controller. */
+ out_be32(non_ehci + FSL_SOC_USB_CTRL, ehci_fsl->usb_ctrl);
+
+ ehci_reset(ehci);
+ ehci_fsl_reinit(ehci);
+
+ return 0;
+}
+
+static int ehci_fsl_drv_restore(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+
+ usb_root_hub_lost_power(hcd->self.root_hub);
+ return 0;
+}
+
+static struct dev_pm_ops ehci_fsl_pm_ops = {
+ .suspend = ehci_fsl_drv_suspend,
+ .resume = ehci_fsl_drv_resume,
+ .restore = ehci_fsl_drv_restore,
+};
+
+#define EHCI_FSL_PM_OPS (&ehci_fsl_pm_ops)
+#else
+#define EHCI_FSL_PM_OPS NULL
+#endif /* CONFIG_PM */
+
static const struct hc_driver ehci_fsl_hc_driver = {
.description = hcd_name,
.product_desc = "Freescale On-Chip EHCI Host Controller",
- .hcd_priv_size = sizeof(struct ehci_hcd),
+ .hcd_priv_size = sizeof(struct ehci_fsl),
/*
* generic hardware linkage
.remove = ehci_fsl_drv_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
- .name = "fsl-ehci",
+ .name = "fsl-ehci",
+ .pm = EHCI_FSL_PM_OPS,
},
};
goto err_ioremap;
}
+ /* call platform specific init function */
+ if (pdata->init) {
+ ret = pdata->init(pdev);
+ if (ret) {
+ dev_err(dev, "platform init failed\n");
+ goto err_init;
+ }
+ /* platforms need some time to settle changed IO settings */
+ mdelay(10);
+ }
+
/* enable clocks */
priv->usbclk = clk_get(dev, "usb");
if (IS_ERR(priv->usbclk)) {
if (ret < 0)
goto err_init;
- /* call platform specific init function */
- if (pdata->init) {
- ret = pdata->init(pdev);
- if (ret) {
- dev_err(dev, "platform init failed\n");
- goto err_init;
- }
- }
-
- /* most platforms need some time to settle changed IO settings */
- mdelay(10);
-
/* Initialize the transceiver */
if (pdata->otg) {
pdata->otg->io_priv = hcd->regs + ULPI_VIEWPORT_OFFSET;
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
- * TODO (last updated Feb 23rd, 2009):
+ * TODO (last updated Feb 12, 2010):
* - add kernel-doc
* - enable AUTOIDLE
- * - move DPLL5 programming to clock fw
* - add suspend/resume
* - move workarounds to board-files
*/
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/gpio.h>
+#include <linux/regulator/consumer.h>
#include <plat/usb.h>
/*
void __iomem *uhh_base;
void __iomem *tll_base;
void __iomem *ehci_base;
+
+ /* Regulators for USB PHYs.
+ * Each PHY can have a seperate regulator.
+ */
+ struct regulator *regulator[OMAP3_HS_USB_PORTS];
};
/*-------------------------------------------------------------------------*/
int irq = platform_get_irq(pdev, 0);
int ret = -ENODEV;
+ int i;
+ char supply[7];
if (!pdata) {
dev_dbg(&pdev->dev, "missing platform_data\n");
goto err_tll_ioremap;
}
+ /* get ehci regulator and enable */
+ for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
+ if (omap->port_mode[i] != EHCI_HCD_OMAP_MODE_PHY) {
+ omap->regulator[i] = NULL;
+ continue;
+ }
+ snprintf(supply, sizeof(supply), "hsusb%d", i);
+ omap->regulator[i] = regulator_get(omap->dev, supply);
+ if (IS_ERR(omap->regulator[i]))
+ dev_dbg(&pdev->dev,
+ "failed to get ehci port%d regulator\n", i);
+ else
+ regulator_enable(omap->regulator[i]);
+ }
+
ret = omap_start_ehc(omap, hcd);
if (ret) {
dev_dbg(&pdev->dev, "failed to start ehci\n");
omap->ehci->regs = hcd->regs
+ HC_LENGTH(readl(&omap->ehci->caps->hc_capbase));
+ dbg_hcs_params(omap->ehci, "reset");
+ dbg_hcc_params(omap->ehci, "reset");
+
/* cache this readonly data; minimize chip reads */
omap->ehci->hcs_params = readl(&omap->ehci->caps->hcs_params);
- /* SET 1 micro-frame Interrupt interval */
- writel(readl(&omap->ehci->regs->command) | (1 << 16),
- &omap->ehci->regs->command);
-
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (ret) {
dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret);
omap_stop_ehc(omap, hcd);
err_start:
+ for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
+ if (omap->regulator[i]) {
+ regulator_disable(omap->regulator[i]);
+ regulator_put(omap->regulator[i]);
+ }
+ }
iounmap(omap->tll_base);
err_tll_ioremap:
{
struct ehci_hcd_omap *omap = platform_get_drvdata(pdev);
struct usb_hcd *hcd = ehci_to_hcd(omap->ehci);
+ int i;
usb_remove_hcd(hcd);
omap_stop_ehc(omap, hcd);
iounmap(hcd->regs);
+ for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
+ if (omap->regulator[i]) {
+ regulator_disable(omap->regulator[i]);
+ regulator_put(omap->regulator[i]);
+ }
+ }
iounmap(omap->tll_base);
iounmap(omap->uhh_base);
usb_put_hcd(hcd);
+ kfree(omap);
return 0;
}
goto err1;
}
- if (!request_mem_region(res->start, res->end - res->start + 1,
+ if (!request_mem_region(res->start, resource_size(res),
ehci_orion_hc_driver.description)) {
dev_dbg(&pdev->dev, "controller already in use\n");
err = -EBUSY;
goto err1;
}
- regs = ioremap(res->start, res->end - res->start + 1);
+ regs = ioremap(res->start, resource_size(res));
if (regs == NULL) {
dev_dbg(&pdev->dev, "error mapping memory\n");
err = -EFAULT;
}
hcd->rsrc_start = res->start;
- hcd->rsrc_len = res->end - res->start + 1;
+ hcd->rsrc_len = resource_size(res);
hcd->regs = regs;
ehci = hcd_to_ehci(hcd);
err3:
iounmap(regs);
err2:
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
err1:
dev_err(&pdev->dev, "init %s fail, %d\n",
dev_name(&pdev->dev), err);
hcd->rsrc_len = res.end - res.start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- printk(KERN_ERR __FILE__ ": request_mem_region failed\n");
+ printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__);
rv = -EBUSY;
goto err_rmr;
}
irq = irq_of_parse_and_map(dn, 0);
if (irq == NO_IRQ) {
- printk(KERN_ERR __FILE__ ": irq_of_parse_and_map failed\n");
+ printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__);
rv = -EBUSY;
goto err_irq;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
- printk(KERN_ERR __FILE__ ": ioremap failed\n");
+ printk(KERN_ERR "%s: ioremap failed\n", __FILE__);
rv = -ENOMEM;
goto err_ioremap;
}
ehci->ohci_hcctrl_reg = ioremap(res.start +
OHCI_HCCTRL_OFFSET, OHCI_HCCTRL_LEN);
else
- pr_debug(__FILE__ ": no ohci offset in fdt\n");
+ pr_debug("%s: no ohci offset in fdt\n", __FILE__);
if (!ehci->ohci_hcctrl_reg) {
- pr_debug(__FILE__ ": ioremap for ohci hcctrl failed\n");
+ pr_debug("%s: ioremap for ohci hcctrl failed\n", __FILE__);
} else {
ehci->has_amcc_usb23 = 1;
}
else
release_mem_region(res.start, 0x4);
else
- pr_debug(__FILE__ ": no ohci offset in fdt\n");
+ pr_debug("%s: no ohci offset in fdt\n", __FILE__);
of_node_put(np);
}
}
-static struct of_device_id ehci_hcd_ppc_of_match[] = {
+static const struct of_device_id ehci_hcd_ppc_of_match[] = {
{
.compatible = "usb-ehci",
},
ehci_writel(ehci, cmd, &ehci->regs->command);
/* posted write ... */
+ free_cached_itd_list(ehci);
+
ehci->next_uframe = -1;
return 0;
}
* No need to check for activity unless the
* frame is current.
*/
- if (frame == clock_frame && live &&
- (q.sitd->hw_results &
- SITD_ACTIVE(ehci))) {
+ if (((frame == clock_frame) ||
+ (((frame + 1) % ehci->periodic_size)
+ == clock_frame))
+ && live
+ && (q.sitd->hw_results &
+ SITD_ACTIVE(ehci))) {
+
incomplete = true;
q_p = &q.sitd->sitd_next;
hw_p = &q.sitd->hw_next;
hcd->rsrc_len = res.end - res.start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- printk(KERN_ERR __FILE__ ": request_mem_region failed\n");
+ printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__);
rv = -EBUSY;
goto err_rmr;
}
irq = irq_of_parse_and_map(dn, 0);
if (irq == NO_IRQ) {
- printk(KERN_ERR __FILE__ ": irq_of_parse_and_map failed\n");
+ printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__);
rv = -EBUSY;
goto err_irq;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
- printk(KERN_ERR __FILE__ ": ioremap failed\n");
+ printk(KERN_ERR "%s: ioremap failed\n", __FILE__);
rv = -ENOMEM;
goto err_ioremap;
}
}
-static struct of_device_id ehci_hcd_xilinx_of_match[] = {
+static const struct of_device_id ehci_hcd_xilinx_of_match[] = {
{.compatible = "xlnx,xps-usb-host-1.00.a",},
{},
};
return -ENOMEM;
/* allocate the private part of the URB */
- urb_priv->tds = kzalloc(size * sizeof(struct td), mem_flags);
+ urb_priv->tds = kcalloc(size, sizeof(*urb_priv->tds), mem_flags);
if (!urb_priv->tds) {
kfree(urb_priv);
return -ENOMEM;
return fhci_remove(&ofdev->dev);
}
-static struct of_device_id of_fhci_match[] = {
+static const struct of_device_id of_fhci_match[] = {
{ .compatible = "fsl,mpc8323-qe-usb", },
{},
};
--- /dev/null
+/*
+ * Copyright (c) 2009 by Martin Fuzzey
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* this file is part of imx21-hcd.c */
+
+#ifndef DEBUG
+
+static inline void create_debug_files(struct imx21 *imx21) { }
+static inline void remove_debug_files(struct imx21 *imx21) { }
+static inline void debug_urb_submitted(struct imx21 *imx21, struct urb *urb) {}
+static inline void debug_urb_completed(struct imx21 *imx21, struct urb *urb,
+ int status) {}
+static inline void debug_urb_unlinked(struct imx21 *imx21, struct urb *urb) {}
+static inline void debug_urb_queued_for_etd(struct imx21 *imx21,
+ struct urb *urb) {}
+static inline void debug_urb_queued_for_dmem(struct imx21 *imx21,
+ struct urb *urb) {}
+static inline void debug_etd_allocated(struct imx21 *imx21) {}
+static inline void debug_etd_freed(struct imx21 *imx21) {}
+static inline void debug_dmem_allocated(struct imx21 *imx21, int size) {}
+static inline void debug_dmem_freed(struct imx21 *imx21, int size) {}
+static inline void debug_isoc_submitted(struct imx21 *imx21,
+ int frame, struct td *td) {}
+static inline void debug_isoc_completed(struct imx21 *imx21,
+ int frame, struct td *td, int cc, int len) {}
+
+#else
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+static const char *dir_labels[] = {
+ "TD 0",
+ "OUT",
+ "IN",
+ "TD 1"
+};
+
+static const char *speed_labels[] = {
+ "Full",
+ "Low"
+};
+
+static const char *format_labels[] = {
+ "Control",
+ "ISO",
+ "Bulk",
+ "Interrupt"
+};
+
+static inline struct debug_stats *stats_for_urb(struct imx21 *imx21,
+ struct urb *urb)
+{
+ return usb_pipeisoc(urb->pipe) ?
+ &imx21->isoc_stats : &imx21->nonisoc_stats;
+}
+
+static void debug_urb_submitted(struct imx21 *imx21, struct urb *urb)
+{
+ stats_for_urb(imx21, urb)->submitted++;
+}
+
+static void debug_urb_completed(struct imx21 *imx21, struct urb *urb, int st)
+{
+ if (st)
+ stats_for_urb(imx21, urb)->completed_failed++;
+ else
+ stats_for_urb(imx21, urb)->completed_ok++;
+}
+
+static void debug_urb_unlinked(struct imx21 *imx21, struct urb *urb)
+{
+ stats_for_urb(imx21, urb)->unlinked++;
+}
+
+static void debug_urb_queued_for_etd(struct imx21 *imx21, struct urb *urb)
+{
+ stats_for_urb(imx21, urb)->queue_etd++;
+}
+
+static void debug_urb_queued_for_dmem(struct imx21 *imx21, struct urb *urb)
+{
+ stats_for_urb(imx21, urb)->queue_dmem++;
+}
+
+static inline void debug_etd_allocated(struct imx21 *imx21)
+{
+ imx21->etd_usage.maximum = max(
+ ++(imx21->etd_usage.value),
+ imx21->etd_usage.maximum);
+}
+
+static inline void debug_etd_freed(struct imx21 *imx21)
+{
+ imx21->etd_usage.value--;
+}
+
+static inline void debug_dmem_allocated(struct imx21 *imx21, int size)
+{
+ imx21->dmem_usage.value += size;
+ imx21->dmem_usage.maximum = max(
+ imx21->dmem_usage.value,
+ imx21->dmem_usage.maximum);
+}
+
+static inline void debug_dmem_freed(struct imx21 *imx21, int size)
+{
+ imx21->dmem_usage.value -= size;
+}
+
+
+static void debug_isoc_submitted(struct imx21 *imx21,
+ int frame, struct td *td)
+{
+ struct debug_isoc_trace *trace = &imx21->isoc_trace[
+ imx21->isoc_trace_index++];
+
+ imx21->isoc_trace_index %= ARRAY_SIZE(imx21->isoc_trace);
+ trace->schedule_frame = td->frame;
+ trace->submit_frame = frame;
+ trace->request_len = td->len;
+ trace->td = td;
+}
+
+static inline void debug_isoc_completed(struct imx21 *imx21,
+ int frame, struct td *td, int cc, int len)
+{
+ struct debug_isoc_trace *trace, *trace_failed;
+ int i;
+ int found = 0;
+
+ trace = imx21->isoc_trace;
+ for (i = 0; i < ARRAY_SIZE(imx21->isoc_trace); i++, trace++) {
+ if (trace->td == td) {
+ trace->done_frame = frame;
+ trace->done_len = len;
+ trace->cc = cc;
+ trace->td = NULL;
+ found = 1;
+ break;
+ }
+ }
+
+ if (found && cc) {
+ trace_failed = &imx21->isoc_trace_failed[
+ imx21->isoc_trace_index_failed++];
+
+ imx21->isoc_trace_index_failed %= ARRAY_SIZE(
+ imx21->isoc_trace_failed);
+ *trace_failed = *trace;
+ }
+}
+
+
+static char *format_ep(struct usb_host_endpoint *ep, char *buf, int bufsize)
+{
+ if (ep)
+ snprintf(buf, bufsize, "ep_%02x (type:%02X kaddr:%p)",
+ ep->desc.bEndpointAddress,
+ usb_endpoint_type(&ep->desc),
+ ep);
+ else
+ snprintf(buf, bufsize, "none");
+ return buf;
+}
+
+static char *format_etd_dword0(u32 value, char *buf, int bufsize)
+{
+ snprintf(buf, bufsize,
+ "addr=%d ep=%d dir=%s speed=%s format=%s halted=%d",
+ value & 0x7F,
+ (value >> DW0_ENDPNT) & 0x0F,
+ dir_labels[(value >> DW0_DIRECT) & 0x03],
+ speed_labels[(value >> DW0_SPEED) & 0x01],
+ format_labels[(value >> DW0_FORMAT) & 0x03],
+ (value >> DW0_HALTED) & 0x01);
+ return buf;
+}
+
+static int debug_status_show(struct seq_file *s, void *v)
+{
+ struct imx21 *imx21 = s->private;
+ int etds_allocated = 0;
+ int etds_sw_busy = 0;
+ int etds_hw_busy = 0;
+ int dmem_blocks = 0;
+ int queued_for_etd = 0;
+ int queued_for_dmem = 0;
+ unsigned int dmem_bytes = 0;
+ int i;
+ struct etd_priv *etd;
+ u32 etd_enable_mask;
+ unsigned long flags;
+ struct imx21_dmem_area *dmem;
+ struct ep_priv *ep_priv;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ etd_enable_mask = readl(imx21->regs + USBH_ETDENSET);
+ for (i = 0, etd = imx21->etd; i < USB_NUM_ETD; i++, etd++) {
+ if (etd->alloc)
+ etds_allocated++;
+ if (etd->urb)
+ etds_sw_busy++;
+ if (etd_enable_mask & (1<<i))
+ etds_hw_busy++;
+ }
+
+ list_for_each_entry(dmem, &imx21->dmem_list, list) {
+ dmem_bytes += dmem->size;
+ dmem_blocks++;
+ }
+
+ list_for_each_entry(ep_priv, &imx21->queue_for_etd, queue)
+ queued_for_etd++;
+
+ list_for_each_entry(etd, &imx21->queue_for_dmem, queue)
+ queued_for_dmem++;
+
+ spin_unlock_irqrestore(&imx21->lock, flags);
+
+ seq_printf(s,
+ "Frame: %d\n"
+ "ETDs allocated: %d/%d (max=%d)\n"
+ "ETDs in use sw: %d\n"
+ "ETDs in use hw: %d\n"
+ "DMEM alocated: %d/%d (max=%d)\n"
+ "DMEM blocks: %d\n"
+ "Queued waiting for ETD: %d\n"
+ "Queued waiting for DMEM: %d\n",
+ readl(imx21->regs + USBH_FRMNUB) & 0xFFFF,
+ etds_allocated, USB_NUM_ETD, imx21->etd_usage.maximum,
+ etds_sw_busy,
+ etds_hw_busy,
+ dmem_bytes, DMEM_SIZE, imx21->dmem_usage.maximum,
+ dmem_blocks,
+ queued_for_etd,
+ queued_for_dmem);
+
+ return 0;
+}
+
+static int debug_dmem_show(struct seq_file *s, void *v)
+{
+ struct imx21 *imx21 = s->private;
+ struct imx21_dmem_area *dmem;
+ unsigned long flags;
+ char ep_text[40];
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ list_for_each_entry(dmem, &imx21->dmem_list, list)
+ seq_printf(s,
+ "%04X: size=0x%X "
+ "ep=%s\n",
+ dmem->offset, dmem->size,
+ format_ep(dmem->ep, ep_text, sizeof(ep_text)));
+
+ spin_unlock_irqrestore(&imx21->lock, flags);
+
+ return 0;
+}
+
+static int debug_etd_show(struct seq_file *s, void *v)
+{
+ struct imx21 *imx21 = s->private;
+ struct etd_priv *etd;
+ char buf[60];
+ u32 dword;
+ int i, j;
+ unsigned long flags;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ for (i = 0, etd = imx21->etd; i < USB_NUM_ETD; i++, etd++) {
+ int state = -1;
+ struct urb_priv *urb_priv;
+ if (etd->urb) {
+ urb_priv = etd->urb->hcpriv;
+ if (urb_priv)
+ state = urb_priv->state;
+ }
+
+ seq_printf(s,
+ "etd_num: %d\n"
+ "ep: %s\n"
+ "alloc: %d\n"
+ "len: %d\n"
+ "busy sw: %d\n"
+ "busy hw: %d\n"
+ "urb state: %d\n"
+ "current urb: %p\n",
+
+ i,
+ format_ep(etd->ep, buf, sizeof(buf)),
+ etd->alloc,
+ etd->len,
+ etd->urb != NULL,
+ (readl(imx21->regs + USBH_ETDENSET) & (1 << i)) > 0,
+ state,
+ etd->urb);
+
+ for (j = 0; j < 4; j++) {
+ dword = etd_readl(imx21, i, j);
+ switch (j) {
+ case 0:
+ format_etd_dword0(dword, buf, sizeof(buf));
+ break;
+ case 2:
+ snprintf(buf, sizeof(buf),
+ "cc=0X%02X", dword >> DW2_COMPCODE);
+ break;
+ default:
+ *buf = 0;
+ break;
+ }
+ seq_printf(s,
+ "dword %d: submitted=%08X cur=%08X [%s]\n",
+ j,
+ etd->submitted_dwords[j],
+ dword,
+ buf);
+ }
+ seq_printf(s, "\n");
+ }
+
+ spin_unlock_irqrestore(&imx21->lock, flags);
+
+ return 0;
+}
+
+static void debug_statistics_show_one(struct seq_file *s,
+ const char *name, struct debug_stats *stats)
+{
+ seq_printf(s, "%s:\n"
+ "submitted URBs: %lu\n"
+ "completed OK: %lu\n"
+ "completed failed: %lu\n"
+ "unlinked: %lu\n"
+ "queued for ETD: %lu\n"
+ "queued for DMEM: %lu\n\n",
+ name,
+ stats->submitted,
+ stats->completed_ok,
+ stats->completed_failed,
+ stats->unlinked,
+ stats->queue_etd,
+ stats->queue_dmem);
+}
+
+static int debug_statistics_show(struct seq_file *s, void *v)
+{
+ struct imx21 *imx21 = s->private;
+ unsigned long flags;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ debug_statistics_show_one(s, "nonisoc", &imx21->nonisoc_stats);
+ debug_statistics_show_one(s, "isoc", &imx21->isoc_stats);
+ seq_printf(s, "unblock kludge triggers: %lu\n", imx21->debug_unblocks);
+ spin_unlock_irqrestore(&imx21->lock, flags);
+
+ return 0;
+}
+
+static void debug_isoc_show_one(struct seq_file *s,
+ const char *name, int index, struct debug_isoc_trace *trace)
+{
+ seq_printf(s, "%s %d:\n"
+ "cc=0X%02X\n"
+ "scheduled frame %d (%d)\n"
+ "submittted frame %d (%d)\n"
+ "completed frame %d (%d)\n"
+ "requested length=%d\n"
+ "completed length=%d\n\n",
+ name, index,
+ trace->cc,
+ trace->schedule_frame, trace->schedule_frame & 0xFFFF,
+ trace->submit_frame, trace->submit_frame & 0xFFFF,
+ trace->done_frame, trace->done_frame & 0xFFFF,
+ trace->request_len,
+ trace->done_len);
+}
+
+static int debug_isoc_show(struct seq_file *s, void *v)
+{
+ struct imx21 *imx21 = s->private;
+ struct debug_isoc_trace *trace;
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ trace = imx21->isoc_trace_failed;
+ for (i = 0; i < ARRAY_SIZE(imx21->isoc_trace_failed); i++, trace++)
+ debug_isoc_show_one(s, "isoc failed", i, trace);
+
+ trace = imx21->isoc_trace;
+ for (i = 0; i < ARRAY_SIZE(imx21->isoc_trace); i++, trace++)
+ debug_isoc_show_one(s, "isoc", i, trace);
+
+ spin_unlock_irqrestore(&imx21->lock, flags);
+
+ return 0;
+}
+
+static int debug_status_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, debug_status_show, inode->i_private);
+}
+
+static int debug_dmem_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, debug_dmem_show, inode->i_private);
+}
+
+static int debug_etd_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, debug_etd_show, inode->i_private);
+}
+
+static int debug_statistics_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, debug_statistics_show, inode->i_private);
+}
+
+static int debug_isoc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, debug_isoc_show, inode->i_private);
+}
+
+static const struct file_operations debug_status_fops = {
+ .open = debug_status_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations debug_dmem_fops = {
+ .open = debug_dmem_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations debug_etd_fops = {
+ .open = debug_etd_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations debug_statistics_fops = {
+ .open = debug_statistics_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations debug_isoc_fops = {
+ .open = debug_isoc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static void create_debug_files(struct imx21 *imx21)
+{
+ imx21->debug_root = debugfs_create_dir(dev_name(imx21->dev), NULL);
+ if (!imx21->debug_root)
+ goto failed_create_rootdir;
+
+ if (!debugfs_create_file("status", S_IRUGO,
+ imx21->debug_root, imx21, &debug_status_fops))
+ goto failed_create;
+
+ if (!debugfs_create_file("dmem", S_IRUGO,
+ imx21->debug_root, imx21, &debug_dmem_fops))
+ goto failed_create;
+
+ if (!debugfs_create_file("etd", S_IRUGO,
+ imx21->debug_root, imx21, &debug_etd_fops))
+ goto failed_create;
+
+ if (!debugfs_create_file("statistics", S_IRUGO,
+ imx21->debug_root, imx21, &debug_statistics_fops))
+ goto failed_create;
+
+ if (!debugfs_create_file("isoc", S_IRUGO,
+ imx21->debug_root, imx21, &debug_isoc_fops))
+ goto failed_create;
+
+ return;
+
+failed_create:
+ debugfs_remove_recursive(imx21->debug_root);
+
+failed_create_rootdir:
+ imx21->debug_root = NULL;
+}
+
+
+static void remove_debug_files(struct imx21 *imx21)
+{
+ if (imx21->debug_root) {
+ debugfs_remove_recursive(imx21->debug_root);
+ imx21->debug_root = NULL;
+ }
+}
+
+#endif
+
--- /dev/null
+/*
+ * USB Host Controller Driver for IMX21
+ *
+ * Copyright (C) 2006 Loping Dog Embedded Systems
+ * Copyright (C) 2009 Martin Fuzzey
+ * Originally written by Jay Monkman <jtm@lopingdog.com>
+ * Ported to 2.6.30, debugged and enhanced by Martin Fuzzey
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+ /*
+ * The i.MX21 USB hardware contains
+ * * 32 transfer descriptors (called ETDs)
+ * * 4Kb of Data memory
+ *
+ * The data memory is shared between the host and fuction controlers
+ * (but this driver only supports the host controler)
+ *
+ * So setting up a transfer involves:
+ * * Allocating a ETD
+ * * Fill in ETD with appropriate information
+ * * Allocating data memory (and putting the offset in the ETD)
+ * * Activate the ETD
+ * * Get interrupt when done.
+ *
+ * An ETD is assigned to each active endpoint.
+ *
+ * Low resource (ETD and Data memory) situations are handled differently for
+ * isochronous and non insosynchronous transactions :
+ *
+ * Non ISOC transfers are queued if either ETDs or Data memory are unavailable
+ *
+ * ISOC transfers use 2 ETDs per endpoint to achieve double buffering.
+ * They allocate both ETDs and Data memory during URB submission
+ * (and fail if unavailable).
+ */
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/platform_device.h>
+#include <linux/usb.h>
+
+#include "../core/hcd.h"
+#include "imx21-hcd.h"
+
+#ifdef DEBUG
+#define DEBUG_LOG_FRAME(imx21, etd, event) \
+ (etd)->event##_frame = readl((imx21)->regs + USBH_FRMNUB)
+#else
+#define DEBUG_LOG_FRAME(imx21, etd, event) do { } while (0)
+#endif
+
+static const char hcd_name[] = "imx21-hcd";
+
+static inline struct imx21 *hcd_to_imx21(struct usb_hcd *hcd)
+{
+ return (struct imx21 *)hcd->hcd_priv;
+}
+
+
+/* =========================================== */
+/* Hardware access helpers */
+/* =========================================== */
+
+static inline void set_register_bits(struct imx21 *imx21, u32 offset, u32 mask)
+{
+ void __iomem *reg = imx21->regs + offset;
+ writel(readl(reg) | mask, reg);
+}
+
+static inline void clear_register_bits(struct imx21 *imx21,
+ u32 offset, u32 mask)
+{
+ void __iomem *reg = imx21->regs + offset;
+ writel(readl(reg) & ~mask, reg);
+}
+
+static inline void clear_toggle_bit(struct imx21 *imx21, u32 offset, u32 mask)
+{
+ void __iomem *reg = imx21->regs + offset;
+
+ if (readl(reg) & mask)
+ writel(mask, reg);
+}
+
+static inline void set_toggle_bit(struct imx21 *imx21, u32 offset, u32 mask)
+{
+ void __iomem *reg = imx21->regs + offset;
+
+ if (!(readl(reg) & mask))
+ writel(mask, reg);
+}
+
+static void etd_writel(struct imx21 *imx21, int etd_num, int dword, u32 value)
+{
+ writel(value, imx21->regs + USB_ETD_DWORD(etd_num, dword));
+}
+
+static u32 etd_readl(struct imx21 *imx21, int etd_num, int dword)
+{
+ return readl(imx21->regs + USB_ETD_DWORD(etd_num, dword));
+}
+
+static inline int wrap_frame(int counter)
+{
+ return counter & 0xFFFF;
+}
+
+static inline int frame_after(int frame, int after)
+{
+ /* handle wrapping like jiffies time_afer */
+ return (s16)((s16)after - (s16)frame) < 0;
+}
+
+static int imx21_hc_get_frame(struct usb_hcd *hcd)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+
+ return wrap_frame(readl(imx21->regs + USBH_FRMNUB));
+}
+
+
+#include "imx21-dbg.c"
+
+/* =========================================== */
+/* ETD management */
+/* =========================================== */
+
+static int alloc_etd(struct imx21 *imx21)
+{
+ int i;
+ struct etd_priv *etd = imx21->etd;
+
+ for (i = 0; i < USB_NUM_ETD; i++, etd++) {
+ if (etd->alloc == 0) {
+ memset(etd, 0, sizeof(imx21->etd[0]));
+ etd->alloc = 1;
+ debug_etd_allocated(imx21);
+ return i;
+ }
+ }
+ return -1;
+}
+
+static void disactivate_etd(struct imx21 *imx21, int num)
+{
+ int etd_mask = (1 << num);
+ struct etd_priv *etd = &imx21->etd[num];
+
+ writel(etd_mask, imx21->regs + USBH_ETDENCLR);
+ clear_register_bits(imx21, USBH_ETDDONEEN, etd_mask);
+ writel(etd_mask, imx21->regs + USB_ETDDMACHANLCLR);
+ clear_toggle_bit(imx21, USBH_ETDDONESTAT, etd_mask);
+
+ etd->active_count = 0;
+
+ DEBUG_LOG_FRAME(imx21, etd, disactivated);
+}
+
+static void reset_etd(struct imx21 *imx21, int num)
+{
+ struct etd_priv *etd = imx21->etd + num;
+ int i;
+
+ disactivate_etd(imx21, num);
+
+ for (i = 0; i < 4; i++)
+ etd_writel(imx21, num, i, 0);
+ etd->urb = NULL;
+ etd->ep = NULL;
+ etd->td = NULL;;
+}
+
+static void free_etd(struct imx21 *imx21, int num)
+{
+ if (num < 0)
+ return;
+
+ if (num >= USB_NUM_ETD) {
+ dev_err(imx21->dev, "BAD etd=%d!\n", num);
+ return;
+ }
+ if (imx21->etd[num].alloc == 0) {
+ dev_err(imx21->dev, "ETD %d already free!\n", num);
+ return;
+ }
+
+ debug_etd_freed(imx21);
+ reset_etd(imx21, num);
+ memset(&imx21->etd[num], 0, sizeof(imx21->etd[0]));
+}
+
+
+static void setup_etd_dword0(struct imx21 *imx21,
+ int etd_num, struct urb *urb, u8 dir, u16 maxpacket)
+{
+ etd_writel(imx21, etd_num, 0,
+ ((u32) usb_pipedevice(urb->pipe)) << DW0_ADDRESS |
+ ((u32) usb_pipeendpoint(urb->pipe) << DW0_ENDPNT) |
+ ((u32) dir << DW0_DIRECT) |
+ ((u32) ((urb->dev->speed == USB_SPEED_LOW) ?
+ 1 : 0) << DW0_SPEED) |
+ ((u32) fmt_urb_to_etd[usb_pipetype(urb->pipe)] << DW0_FORMAT) |
+ ((u32) maxpacket << DW0_MAXPKTSIZ));
+}
+
+static void activate_etd(struct imx21 *imx21,
+ int etd_num, dma_addr_t dma, u8 dir)
+{
+ u32 etd_mask = 1 << etd_num;
+ struct etd_priv *etd = &imx21->etd[etd_num];
+
+ clear_toggle_bit(imx21, USBH_ETDDONESTAT, etd_mask);
+ set_register_bits(imx21, USBH_ETDDONEEN, etd_mask);
+ clear_toggle_bit(imx21, USBH_XFILLSTAT, etd_mask);
+ clear_toggle_bit(imx21, USBH_YFILLSTAT, etd_mask);
+
+ if (dma) {
+ set_register_bits(imx21, USB_ETDDMACHANLCLR, etd_mask);
+ clear_toggle_bit(imx21, USBH_XBUFSTAT, etd_mask);
+ clear_toggle_bit(imx21, USBH_YBUFSTAT, etd_mask);
+ writel(dma, imx21->regs + USB_ETDSMSA(etd_num));
+ set_register_bits(imx21, USB_ETDDMAEN, etd_mask);
+ } else {
+ if (dir != TD_DIR_IN) {
+ /* need to set for ZLP */
+ set_toggle_bit(imx21, USBH_XFILLSTAT, etd_mask);
+ set_toggle_bit(imx21, USBH_YFILLSTAT, etd_mask);
+ }
+ }
+
+ DEBUG_LOG_FRAME(imx21, etd, activated);
+
+#ifdef DEBUG
+ if (!etd->active_count) {
+ int i;
+ etd->activated_frame = readl(imx21->regs + USBH_FRMNUB);
+ etd->disactivated_frame = -1;
+ etd->last_int_frame = -1;
+ etd->last_req_frame = -1;
+
+ for (i = 0; i < 4; i++)
+ etd->submitted_dwords[i] = etd_readl(imx21, etd_num, i);
+ }
+#endif
+
+ etd->active_count = 1;
+ writel(etd_mask, imx21->regs + USBH_ETDENSET);
+}
+
+/* =========================================== */
+/* Data memory management */
+/* =========================================== */
+
+static int alloc_dmem(struct imx21 *imx21, unsigned int size,
+ struct usb_host_endpoint *ep)
+{
+ unsigned int offset = 0;
+ struct imx21_dmem_area *area;
+ struct imx21_dmem_area *tmp;
+
+ size += (~size + 1) & 0x3; /* Round to 4 byte multiple */
+
+ if (size > DMEM_SIZE) {
+ dev_err(imx21->dev, "size=%d > DMEM_SIZE(%d)\n",
+ size, DMEM_SIZE);
+ return -EINVAL;
+ }
+
+ list_for_each_entry(tmp, &imx21->dmem_list, list) {
+ if ((size + offset) < offset)
+ goto fail;
+ if ((size + offset) <= tmp->offset)
+ break;
+ offset = tmp->size + tmp->offset;
+ if ((offset + size) > DMEM_SIZE)
+ goto fail;
+ }
+
+ area = kmalloc(sizeof(struct imx21_dmem_area), GFP_ATOMIC);
+ if (area == NULL)
+ return -ENOMEM;
+
+ area->ep = ep;
+ area->offset = offset;
+ area->size = size;
+ list_add_tail(&area->list, &tmp->list);
+ debug_dmem_allocated(imx21, size);
+ return offset;
+
+fail:
+ return -ENOMEM;
+}
+
+/* Memory now available for a queued ETD - activate it */
+static void activate_queued_etd(struct imx21 *imx21,
+ struct etd_priv *etd, u32 dmem_offset)
+{
+ struct urb_priv *urb_priv = etd->urb->hcpriv;
+ int etd_num = etd - &imx21->etd[0];
+ u32 maxpacket = etd_readl(imx21, etd_num, 1) >> DW1_YBUFSRTAD;
+ u8 dir = (etd_readl(imx21, etd_num, 2) >> DW2_DIRPID) & 0x03;
+
+ dev_dbg(imx21->dev, "activating queued ETD %d now DMEM available\n",
+ etd_num);
+ etd_writel(imx21, etd_num, 1,
+ ((dmem_offset + maxpacket) << DW1_YBUFSRTAD) | dmem_offset);
+
+ urb_priv->active = 1;
+ activate_etd(imx21, etd_num, etd->dma_handle, dir);
+}
+
+static void free_dmem(struct imx21 *imx21, int offset)
+{
+ struct imx21_dmem_area *area;
+ struct etd_priv *etd, *tmp;
+ int found = 0;
+
+ list_for_each_entry(area, &imx21->dmem_list, list) {
+ if (area->offset == offset) {
+ debug_dmem_freed(imx21, area->size);
+ list_del(&area->list);
+ kfree(area);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found) {
+ dev_err(imx21->dev,
+ "Trying to free unallocated DMEM %d\n", offset);
+ return;
+ }
+
+ /* Try again to allocate memory for anything we've queued */
+ list_for_each_entry_safe(etd, tmp, &imx21->queue_for_dmem, queue) {
+ offset = alloc_dmem(imx21, etd->dmem_size, etd->ep);
+ if (offset >= 0) {
+ list_del(&etd->queue);
+ activate_queued_etd(imx21, etd, (u32)offset);
+ }
+ }
+}
+
+static void free_epdmem(struct imx21 *imx21, struct usb_host_endpoint *ep)
+{
+ struct imx21_dmem_area *area, *tmp;
+
+ list_for_each_entry_safe(area, tmp, &imx21->dmem_list, list) {
+ if (area->ep == ep) {
+ dev_err(imx21->dev,
+ "Active DMEM %d for disabled ep=%p\n",
+ area->offset, ep);
+ list_del(&area->list);
+ kfree(area);
+ }
+ }
+}
+
+
+/* =========================================== */
+/* End handling */
+/* =========================================== */
+static void schedule_nonisoc_etd(struct imx21 *imx21, struct urb *urb);
+
+/* Endpoint now idle - release it's ETD(s) or asssign to queued request */
+static void ep_idle(struct imx21 *imx21, struct ep_priv *ep_priv)
+{
+ int etd_num;
+ int i;
+
+ for (i = 0; i < NUM_ISO_ETDS; i++) {
+ etd_num = ep_priv->etd[i];
+ if (etd_num < 0)
+ continue;
+
+ ep_priv->etd[i] = -1;
+ if (list_empty(&imx21->queue_for_etd)) {
+ free_etd(imx21, etd_num);
+ continue;
+ }
+
+ dev_dbg(imx21->dev,
+ "assigning idle etd %d for queued request\n", etd_num);
+ ep_priv = list_first_entry(&imx21->queue_for_etd,
+ struct ep_priv, queue);
+ list_del(&ep_priv->queue);
+ reset_etd(imx21, etd_num);
+ ep_priv->waiting_etd = 0;
+ ep_priv->etd[i] = etd_num;
+
+ if (list_empty(&ep_priv->ep->urb_list)) {
+ dev_err(imx21->dev, "No urb for queued ep!\n");
+ continue;
+ }
+ schedule_nonisoc_etd(imx21, list_first_entry(
+ &ep_priv->ep->urb_list, struct urb, urb_list));
+ }
+}
+
+static void urb_done(struct usb_hcd *hcd, struct urb *urb, int status)
+__releases(imx21->lock)
+__acquires(imx21->lock)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ struct ep_priv *ep_priv = urb->ep->hcpriv;
+ struct urb_priv *urb_priv = urb->hcpriv;
+
+ debug_urb_completed(imx21, urb, status);
+ dev_vdbg(imx21->dev, "urb %p done %d\n", urb, status);
+
+ kfree(urb_priv->isoc_td);
+ kfree(urb->hcpriv);
+ urb->hcpriv = NULL;
+ usb_hcd_unlink_urb_from_ep(hcd, urb);
+ spin_unlock(&imx21->lock);
+ usb_hcd_giveback_urb(hcd, urb, status);
+ spin_lock(&imx21->lock);
+ if (list_empty(&ep_priv->ep->urb_list))
+ ep_idle(imx21, ep_priv);
+}
+
+/* =========================================== */
+/* ISOC Handling ... */
+/* =========================================== */
+
+static void schedule_isoc_etds(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ struct ep_priv *ep_priv = ep->hcpriv;
+ struct etd_priv *etd;
+ struct urb_priv *urb_priv;
+ struct td *td;
+ int etd_num;
+ int i;
+ int cur_frame;
+ u8 dir;
+
+ for (i = 0; i < NUM_ISO_ETDS; i++) {
+too_late:
+ if (list_empty(&ep_priv->td_list))
+ break;
+
+ etd_num = ep_priv->etd[i];
+ if (etd_num < 0)
+ break;
+
+ etd = &imx21->etd[etd_num];
+ if (etd->urb)
+ continue;
+
+ td = list_entry(ep_priv->td_list.next, struct td, list);
+ list_del(&td->list);
+ urb_priv = td->urb->hcpriv;
+
+ cur_frame = imx21_hc_get_frame(hcd);
+ if (frame_after(cur_frame, td->frame)) {
+ dev_dbg(imx21->dev, "isoc too late frame %d > %d\n",
+ cur_frame, td->frame);
+ urb_priv->isoc_status = -EXDEV;
+ td->urb->iso_frame_desc[
+ td->isoc_index].actual_length = 0;
+ td->urb->iso_frame_desc[td->isoc_index].status = -EXDEV;
+ if (--urb_priv->isoc_remaining == 0)
+ urb_done(hcd, td->urb, urb_priv->isoc_status);
+ goto too_late;
+ }
+
+ urb_priv->active = 1;
+ etd->td = td;
+ etd->ep = td->ep;
+ etd->urb = td->urb;
+ etd->len = td->len;
+
+ debug_isoc_submitted(imx21, cur_frame, td);
+
+ dir = usb_pipeout(td->urb->pipe) ? TD_DIR_OUT : TD_DIR_IN;
+ setup_etd_dword0(imx21, etd_num, td->urb, dir, etd->dmem_size);
+ etd_writel(imx21, etd_num, 1, etd->dmem_offset);
+ etd_writel(imx21, etd_num, 2,
+ (TD_NOTACCESSED << DW2_COMPCODE) |
+ ((td->frame & 0xFFFF) << DW2_STARTFRM));
+ etd_writel(imx21, etd_num, 3,
+ (TD_NOTACCESSED << DW3_COMPCODE0) |
+ (td->len << DW3_PKTLEN0));
+
+ activate_etd(imx21, etd_num, td->data, dir);
+ }
+}
+
+static void isoc_etd_done(struct usb_hcd *hcd, struct urb *urb, int etd_num)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ int etd_mask = 1 << etd_num;
+ struct urb_priv *urb_priv = urb->hcpriv;
+ struct etd_priv *etd = imx21->etd + etd_num;
+ struct td *td = etd->td;
+ struct usb_host_endpoint *ep = etd->ep;
+ int isoc_index = td->isoc_index;
+ unsigned int pipe = urb->pipe;
+ int dir_in = usb_pipein(pipe);
+ int cc;
+ int bytes_xfrd;
+
+ disactivate_etd(imx21, etd_num);
+
+ cc = (etd_readl(imx21, etd_num, 3) >> DW3_COMPCODE0) & 0xf;
+ bytes_xfrd = etd_readl(imx21, etd_num, 3) & 0x3ff;
+
+ /* Input doesn't always fill the buffer, don't generate an error
+ * when this happens.
+ */
+ if (dir_in && (cc == TD_DATAUNDERRUN))
+ cc = TD_CC_NOERROR;
+
+ if (cc == TD_NOTACCESSED)
+ bytes_xfrd = 0;
+
+ debug_isoc_completed(imx21,
+ imx21_hc_get_frame(hcd), td, cc, bytes_xfrd);
+ if (cc) {
+ urb_priv->isoc_status = -EXDEV;
+ dev_dbg(imx21->dev,
+ "bad iso cc=0x%X frame=%d sched frame=%d "
+ "cnt=%d len=%d urb=%p etd=%d index=%d\n",
+ cc, imx21_hc_get_frame(hcd), td->frame,
+ bytes_xfrd, td->len, urb, etd_num, isoc_index);
+ }
+
+ if (dir_in)
+ clear_toggle_bit(imx21, USBH_XFILLSTAT, etd_mask);
+
+ urb->actual_length += bytes_xfrd;
+ urb->iso_frame_desc[isoc_index].actual_length = bytes_xfrd;
+ urb->iso_frame_desc[isoc_index].status = cc_to_error[cc];
+
+ etd->td = NULL;
+ etd->urb = NULL;
+ etd->ep = NULL;
+
+ if (--urb_priv->isoc_remaining == 0)
+ urb_done(hcd, urb, urb_priv->isoc_status);
+
+ schedule_isoc_etds(hcd, ep);
+}
+
+static struct ep_priv *alloc_isoc_ep(
+ struct imx21 *imx21, struct usb_host_endpoint *ep)
+{
+ struct ep_priv *ep_priv;
+ int i;
+
+ ep_priv = kzalloc(sizeof(struct ep_priv), GFP_ATOMIC);
+ if (ep_priv == NULL)
+ return NULL;
+
+ /* Allocate the ETDs */
+ for (i = 0; i < NUM_ISO_ETDS; i++) {
+ ep_priv->etd[i] = alloc_etd(imx21);
+ if (ep_priv->etd[i] < 0) {
+ int j;
+ dev_err(imx21->dev, "isoc: Couldn't allocate etd\n");
+ for (j = 0; j < i; j++)
+ free_etd(imx21, ep_priv->etd[j]);
+ goto alloc_etd_failed;
+ }
+ imx21->etd[ep_priv->etd[i]].ep = ep;
+ }
+
+ INIT_LIST_HEAD(&ep_priv->td_list);
+ ep_priv->ep = ep;
+ ep->hcpriv = ep_priv;
+ return ep_priv;
+
+alloc_etd_failed:
+ kfree(ep_priv);
+ return NULL;
+}
+
+static int imx21_hc_urb_enqueue_isoc(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep,
+ struct urb *urb, gfp_t mem_flags)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ struct urb_priv *urb_priv;
+ unsigned long flags;
+ struct ep_priv *ep_priv;
+ struct td *td = NULL;
+ int i;
+ int ret;
+ int cur_frame;
+ u16 maxpacket;
+
+ urb_priv = kzalloc(sizeof(struct urb_priv), mem_flags);
+ if (urb_priv == NULL)
+ return -ENOMEM;
+
+ urb_priv->isoc_td = kzalloc(
+ sizeof(struct td) * urb->number_of_packets, mem_flags);
+ if (urb_priv->isoc_td == NULL) {
+ ret = -ENOMEM;
+ goto alloc_td_failed;
+ }
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ if (ep->hcpriv == NULL) {
+ ep_priv = alloc_isoc_ep(imx21, ep);
+ if (ep_priv == NULL) {
+ ret = -ENOMEM;
+ goto alloc_ep_failed;
+ }
+ } else {
+ ep_priv = ep->hcpriv;
+ }
+
+ ret = usb_hcd_link_urb_to_ep(hcd, urb);
+ if (ret)
+ goto link_failed;
+
+ urb->status = -EINPROGRESS;
+ urb->actual_length = 0;
+ urb->error_count = 0;
+ urb->hcpriv = urb_priv;
+ urb_priv->ep = ep;
+
+ /* allocate data memory for largest packets if not already done */
+ maxpacket = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
+ for (i = 0; i < NUM_ISO_ETDS; i++) {
+ struct etd_priv *etd = &imx21->etd[ep_priv->etd[i]];
+
+ if (etd->dmem_size > 0 && etd->dmem_size < maxpacket) {
+ /* not sure if this can really occur.... */
+ dev_err(imx21->dev, "increasing isoc buffer %d->%d\n",
+ etd->dmem_size, maxpacket);
+ ret = -EMSGSIZE;
+ goto alloc_dmem_failed;
+ }
+
+ if (etd->dmem_size == 0) {
+ etd->dmem_offset = alloc_dmem(imx21, maxpacket, ep);
+ if (etd->dmem_offset < 0) {
+ dev_dbg(imx21->dev, "failed alloc isoc dmem\n");
+ ret = -EAGAIN;
+ goto alloc_dmem_failed;
+ }
+ etd->dmem_size = maxpacket;
+ }
+ }
+
+ /* calculate frame */
+ cur_frame = imx21_hc_get_frame(hcd);
+ if (urb->transfer_flags & URB_ISO_ASAP) {
+ if (list_empty(&ep_priv->td_list))
+ urb->start_frame = cur_frame + 5;
+ else
+ urb->start_frame = list_entry(
+ ep_priv->td_list.prev,
+ struct td, list)->frame + urb->interval;
+ }
+ urb->start_frame = wrap_frame(urb->start_frame);
+ if (frame_after(cur_frame, urb->start_frame)) {
+ dev_dbg(imx21->dev,
+ "enqueue: adjusting iso start %d (cur=%d) asap=%d\n",
+ urb->start_frame, cur_frame,
+ (urb->transfer_flags & URB_ISO_ASAP) != 0);
+ urb->start_frame = wrap_frame(cur_frame + 1);
+ }
+
+ /* set up transfers */
+ td = urb_priv->isoc_td;
+ for (i = 0; i < urb->number_of_packets; i++, td++) {
+ td->ep = ep;
+ td->urb = urb;
+ td->len = urb->iso_frame_desc[i].length;
+ td->isoc_index = i;
+ td->frame = wrap_frame(urb->start_frame + urb->interval * i);
+ td->data = urb->transfer_dma + urb->iso_frame_desc[i].offset;
+ list_add_tail(&td->list, &ep_priv->td_list);
+ }
+
+ urb_priv->isoc_remaining = urb->number_of_packets;
+ dev_vdbg(imx21->dev, "setup %d packets for iso frame %d->%d\n",
+ urb->number_of_packets, urb->start_frame, td->frame);
+
+ debug_urb_submitted(imx21, urb);
+ schedule_isoc_etds(hcd, ep);
+
+ spin_unlock_irqrestore(&imx21->lock, flags);
+ return 0;
+
+alloc_dmem_failed:
+ usb_hcd_unlink_urb_from_ep(hcd, urb);
+
+link_failed:
+alloc_ep_failed:
+ spin_unlock_irqrestore(&imx21->lock, flags);
+ kfree(urb_priv->isoc_td);
+
+alloc_td_failed:
+ kfree(urb_priv);
+ return ret;
+}
+
+static void dequeue_isoc_urb(struct imx21 *imx21,
+ struct urb *urb, struct ep_priv *ep_priv)
+{
+ struct urb_priv *urb_priv = urb->hcpriv;
+ struct td *td, *tmp;
+ int i;
+
+ if (urb_priv->active) {
+ for (i = 0; i < NUM_ISO_ETDS; i++) {
+ int etd_num = ep_priv->etd[i];
+ if (etd_num != -1 && imx21->etd[etd_num].urb == urb) {
+ struct etd_priv *etd = imx21->etd + etd_num;
+
+ reset_etd(imx21, etd_num);
+ if (etd->dmem_size)
+ free_dmem(imx21, etd->dmem_offset);
+ etd->dmem_size = 0;
+ }
+ }
+ }
+
+ list_for_each_entry_safe(td, tmp, &ep_priv->td_list, list) {
+ if (td->urb == urb) {
+ dev_vdbg(imx21->dev, "removing td %p\n", td);
+ list_del(&td->list);
+ }
+ }
+}
+
+/* =========================================== */
+/* NON ISOC Handling ... */
+/* =========================================== */
+
+static void schedule_nonisoc_etd(struct imx21 *imx21, struct urb *urb)
+{
+ unsigned int pipe = urb->pipe;
+ struct urb_priv *urb_priv = urb->hcpriv;
+ struct ep_priv *ep_priv = urb_priv->ep->hcpriv;
+ int state = urb_priv->state;
+ int etd_num = ep_priv->etd[0];
+ struct etd_priv *etd;
+ int dmem_offset;
+ u32 count;
+ u16 etd_buf_size;
+ u16 maxpacket;
+ u8 dir;
+ u8 bufround;
+ u8 datatoggle;
+ u8 interval = 0;
+ u8 relpolpos = 0;
+
+ if (etd_num < 0) {
+ dev_err(imx21->dev, "No valid ETD\n");
+ return;
+ }
+ if (readl(imx21->regs + USBH_ETDENSET) & (1 << etd_num))
+ dev_err(imx21->dev, "submitting to active ETD %d\n", etd_num);
+
+ etd = &imx21->etd[etd_num];
+ maxpacket = usb_maxpacket(urb->dev, pipe, usb_pipeout(pipe));
+ if (!maxpacket)
+ maxpacket = 8;
+
+ if (usb_pipecontrol(pipe) && (state != US_CTRL_DATA)) {
+ if (state == US_CTRL_SETUP) {
+ dir = TD_DIR_SETUP;
+ etd->dma_handle = urb->setup_dma;
+ bufround = 0;
+ count = 8;
+ datatoggle = TD_TOGGLE_DATA0;
+ } else { /* US_CTRL_ACK */
+ dir = usb_pipeout(pipe) ? TD_DIR_IN : TD_DIR_OUT;
+ etd->dma_handle = urb->transfer_dma;
+ bufround = 0;
+ count = 0;
+ datatoggle = TD_TOGGLE_DATA1;
+ }
+ } else {
+ dir = usb_pipeout(pipe) ? TD_DIR_OUT : TD_DIR_IN;
+ bufround = (dir == TD_DIR_IN) ? 1 : 0;
+ etd->dma_handle = urb->transfer_dma;
+ if (usb_pipebulk(pipe) && (state == US_BULK0))
+ count = 0;
+ else
+ count = urb->transfer_buffer_length;
+
+ if (usb_pipecontrol(pipe)) {
+ datatoggle = TD_TOGGLE_DATA1;
+ } else {
+ if (usb_gettoggle(
+ urb->dev,
+ usb_pipeendpoint(urb->pipe),
+ usb_pipeout(urb->pipe)))
+ datatoggle = TD_TOGGLE_DATA1;
+ else
+ datatoggle = TD_TOGGLE_DATA0;
+ }
+ }
+
+ etd->urb = urb;
+ etd->ep = urb_priv->ep;
+ etd->len = count;
+
+ if (usb_pipeint(pipe)) {
+ interval = urb->interval;
+ relpolpos = (readl(imx21->regs + USBH_FRMNUB) + 1) & 0xff;
+ }
+
+ /* Write ETD to device memory */
+ setup_etd_dword0(imx21, etd_num, urb, dir, maxpacket);
+
+ etd_writel(imx21, etd_num, 2,
+ (u32) interval << DW2_POLINTERV |
+ ((u32) relpolpos << DW2_RELPOLPOS) |
+ ((u32) dir << DW2_DIRPID) |
+ ((u32) bufround << DW2_BUFROUND) |
+ ((u32) datatoggle << DW2_DATATOG) |
+ ((u32) TD_NOTACCESSED << DW2_COMPCODE));
+
+ /* DMA will always transfer buffer size even if TOBYCNT in DWORD3
+ is smaller. Make sure we don't overrun the buffer!
+ */
+ if (count && count < maxpacket)
+ etd_buf_size = count;
+ else
+ etd_buf_size = maxpacket;
+
+ etd_writel(imx21, etd_num, 3,
+ ((u32) (etd_buf_size - 1) << DW3_BUFSIZE) | (u32) count);
+
+ if (!count)
+ etd->dma_handle = 0;
+
+ /* allocate x and y buffer space at once */
+ etd->dmem_size = (count > maxpacket) ? maxpacket * 2 : maxpacket;
+ dmem_offset = alloc_dmem(imx21, etd->dmem_size, urb_priv->ep);
+ if (dmem_offset < 0) {
+ /* Setup everything we can in HW and update when we get DMEM */
+ etd_writel(imx21, etd_num, 1, (u32)maxpacket << 16);
+
+ dev_dbg(imx21->dev, "Queuing etd %d for DMEM\n", etd_num);
+ debug_urb_queued_for_dmem(imx21, urb);
+ list_add_tail(&etd->queue, &imx21->queue_for_dmem);
+ return;
+ }
+
+ etd_writel(imx21, etd_num, 1,
+ (((u32) dmem_offset + (u32) maxpacket) << DW1_YBUFSRTAD) |
+ (u32) dmem_offset);
+
+ urb_priv->active = 1;
+
+ /* enable the ETD to kick off transfer */
+ dev_vdbg(imx21->dev, "Activating etd %d for %d bytes %s\n",
+ etd_num, count, dir != TD_DIR_IN ? "out" : "in");
+ activate_etd(imx21, etd_num, etd->dma_handle, dir);
+
+}
+
+static void nonisoc_etd_done(struct usb_hcd *hcd, struct urb *urb, int etd_num)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ struct etd_priv *etd = &imx21->etd[etd_num];
+ u32 etd_mask = 1 << etd_num;
+ struct urb_priv *urb_priv = urb->hcpriv;
+ int dir;
+ u16 xbufaddr;
+ int cc;
+ u32 bytes_xfrd;
+ int etd_done;
+
+ disactivate_etd(imx21, etd_num);
+
+ dir = (etd_readl(imx21, etd_num, 0) >> DW0_DIRECT) & 0x3;
+ xbufaddr = etd_readl(imx21, etd_num, 1) & 0xffff;
+ cc = (etd_readl(imx21, etd_num, 2) >> DW2_COMPCODE) & 0xf;
+ bytes_xfrd = etd->len - (etd_readl(imx21, etd_num, 3) & 0x1fffff);
+
+ /* save toggle carry */
+ usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
+ usb_pipeout(urb->pipe),
+ (etd_readl(imx21, etd_num, 0) >> DW0_TOGCRY) & 0x1);
+
+ if (dir == TD_DIR_IN) {
+ clear_toggle_bit(imx21, USBH_XFILLSTAT, etd_mask);
+ clear_toggle_bit(imx21, USBH_YFILLSTAT, etd_mask);
+ }
+ free_dmem(imx21, xbufaddr);
+
+ urb->error_count = 0;
+ if (!(urb->transfer_flags & URB_SHORT_NOT_OK)
+ && (cc == TD_DATAUNDERRUN))
+ cc = TD_CC_NOERROR;
+
+ if (cc != 0)
+ dev_vdbg(imx21->dev, "cc is 0x%x\n", cc);
+
+ etd_done = (cc_to_error[cc] != 0); /* stop if error */
+
+ switch (usb_pipetype(urb->pipe)) {
+ case PIPE_CONTROL:
+ switch (urb_priv->state) {
+ case US_CTRL_SETUP:
+ if (urb->transfer_buffer_length > 0)
+ urb_priv->state = US_CTRL_DATA;
+ else
+ urb_priv->state = US_CTRL_ACK;
+ break;
+ case US_CTRL_DATA:
+ urb->actual_length += bytes_xfrd;
+ urb_priv->state = US_CTRL_ACK;
+ break;
+ case US_CTRL_ACK:
+ etd_done = 1;
+ break;
+ default:
+ dev_err(imx21->dev,
+ "Invalid pipe state %d\n", urb_priv->state);
+ etd_done = 1;
+ break;
+ }
+ break;
+
+ case PIPE_BULK:
+ urb->actual_length += bytes_xfrd;
+ if ((urb_priv->state == US_BULK)
+ && (urb->transfer_flags & URB_ZERO_PACKET)
+ && urb->transfer_buffer_length > 0
+ && ((urb->transfer_buffer_length %
+ usb_maxpacket(urb->dev, urb->pipe,
+ usb_pipeout(urb->pipe))) == 0)) {
+ /* need a 0-packet */
+ urb_priv->state = US_BULK0;
+ } else {
+ etd_done = 1;
+ }
+ break;
+
+ case PIPE_INTERRUPT:
+ urb->actual_length += bytes_xfrd;
+ etd_done = 1;
+ break;
+ }
+
+ if (!etd_done) {
+ dev_vdbg(imx21->dev, "next state=%d\n", urb_priv->state);
+ schedule_nonisoc_etd(imx21, urb);
+ } else {
+ struct usb_host_endpoint *ep = urb->ep;
+
+ urb_done(hcd, urb, cc_to_error[cc]);
+ etd->urb = NULL;
+
+ if (!list_empty(&ep->urb_list)) {
+ urb = list_first_entry(&ep->urb_list,
+ struct urb, urb_list);
+ dev_vdbg(imx21->dev, "next URB %p\n", urb);
+ schedule_nonisoc_etd(imx21, urb);
+ }
+ }
+}
+
+static struct ep_priv *alloc_ep(void)
+{
+ int i;
+ struct ep_priv *ep_priv;
+
+ ep_priv = kzalloc(sizeof(struct ep_priv), GFP_ATOMIC);
+ if (!ep_priv)
+ return NULL;
+
+ for (i = 0; i < NUM_ISO_ETDS; ++i)
+ ep_priv->etd[i] = -1;
+
+ return ep_priv;
+}
+
+static int imx21_hc_urb_enqueue(struct usb_hcd *hcd,
+ struct urb *urb, gfp_t mem_flags)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ struct usb_host_endpoint *ep = urb->ep;
+ struct urb_priv *urb_priv;
+ struct ep_priv *ep_priv;
+ struct etd_priv *etd;
+ int ret;
+ unsigned long flags;
+ int new_ep = 0;
+
+ dev_vdbg(imx21->dev,
+ "enqueue urb=%p ep=%p len=%d "
+ "buffer=%p dma=%08X setupBuf=%p setupDma=%08X\n",
+ urb, ep,
+ urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma,
+ urb->setup_packet, urb->setup_dma);
+
+ if (usb_pipeisoc(urb->pipe))
+ return imx21_hc_urb_enqueue_isoc(hcd, ep, urb, mem_flags);
+
+ urb_priv = kzalloc(sizeof(struct urb_priv), mem_flags);
+ if (!urb_priv)
+ return -ENOMEM;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ ep_priv = ep->hcpriv;
+ if (ep_priv == NULL) {
+ ep_priv = alloc_ep();
+ if (!ep_priv) {
+ ret = -ENOMEM;
+ goto failed_alloc_ep;
+ }
+ ep->hcpriv = ep_priv;
+ ep_priv->ep = ep;
+ new_ep = 1;
+ }
+
+ ret = usb_hcd_link_urb_to_ep(hcd, urb);
+ if (ret)
+ goto failed_link;
+
+ urb->status = -EINPROGRESS;
+ urb->actual_length = 0;
+ urb->error_count = 0;
+ urb->hcpriv = urb_priv;
+ urb_priv->ep = ep;
+
+ switch (usb_pipetype(urb->pipe)) {
+ case PIPE_CONTROL:
+ urb_priv->state = US_CTRL_SETUP;
+ break;
+ case PIPE_BULK:
+ urb_priv->state = US_BULK;
+ break;
+ }
+
+ debug_urb_submitted(imx21, urb);
+ if (ep_priv->etd[0] < 0) {
+ if (ep_priv->waiting_etd) {
+ dev_dbg(imx21->dev,
+ "no ETD available already queued %p\n",
+ ep_priv);
+ debug_urb_queued_for_etd(imx21, urb);
+ goto out;
+ }
+ ep_priv->etd[0] = alloc_etd(imx21);
+ if (ep_priv->etd[0] < 0) {
+ dev_dbg(imx21->dev,
+ "no ETD available queueing %p\n", ep_priv);
+ debug_urb_queued_for_etd(imx21, urb);
+ list_add_tail(&ep_priv->queue, &imx21->queue_for_etd);
+ ep_priv->waiting_etd = 1;
+ goto out;
+ }
+ }
+
+ /* Schedule if no URB already active for this endpoint */
+ etd = &imx21->etd[ep_priv->etd[0]];
+ if (etd->urb == NULL) {
+ DEBUG_LOG_FRAME(imx21, etd, last_req);
+ schedule_nonisoc_etd(imx21, urb);
+ }
+
+out:
+ spin_unlock_irqrestore(&imx21->lock, flags);
+ return 0;
+
+failed_link:
+failed_alloc_ep:
+ spin_unlock_irqrestore(&imx21->lock, flags);
+ kfree(urb_priv);
+ return ret;
+}
+
+static int imx21_hc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
+ int status)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ unsigned long flags;
+ struct usb_host_endpoint *ep;
+ struct ep_priv *ep_priv;
+ struct urb_priv *urb_priv = urb->hcpriv;
+ int ret = -EINVAL;
+
+ dev_vdbg(imx21->dev, "dequeue urb=%p iso=%d status=%d\n",
+ urb, usb_pipeisoc(urb->pipe), status);
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ ret = usb_hcd_check_unlink_urb(hcd, urb, status);
+ if (ret)
+ goto fail;
+ ep = urb_priv->ep;
+ ep_priv = ep->hcpriv;
+
+ debug_urb_unlinked(imx21, urb);
+
+ if (usb_pipeisoc(urb->pipe)) {
+ dequeue_isoc_urb(imx21, urb, ep_priv);
+ schedule_isoc_etds(hcd, ep);
+ } else if (urb_priv->active) {
+ int etd_num = ep_priv->etd[0];
+ if (etd_num != -1) {
+ disactivate_etd(imx21, etd_num);
+ free_dmem(imx21, etd_readl(imx21, etd_num, 1) & 0xffff);
+ imx21->etd[etd_num].urb = NULL;
+ }
+ }
+
+ urb_done(hcd, urb, status);
+
+ spin_unlock_irqrestore(&imx21->lock, flags);
+ return 0;
+
+fail:
+ spin_unlock_irqrestore(&imx21->lock, flags);
+ return ret;
+}
+
+/* =========================================== */
+/* Interrupt dispatch */
+/* =========================================== */
+
+static void process_etds(struct usb_hcd *hcd, struct imx21 *imx21, int sof)
+{
+ int etd_num;
+ int enable_sof_int = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ for (etd_num = 0; etd_num < USB_NUM_ETD; etd_num++) {
+ u32 etd_mask = 1 << etd_num;
+ u32 enabled = readl(imx21->regs + USBH_ETDENSET) & etd_mask;
+ u32 done = readl(imx21->regs + USBH_ETDDONESTAT) & etd_mask;
+ struct etd_priv *etd = &imx21->etd[etd_num];
+
+
+ if (done) {
+ DEBUG_LOG_FRAME(imx21, etd, last_int);
+ } else {
+/*
+ * Kludge warning!
+ *
+ * When multiple transfers are using the bus we sometimes get into a state
+ * where the transfer has completed (the CC field of the ETD is != 0x0F),
+ * the ETD has self disabled but the ETDDONESTAT flag is not set
+ * (and hence no interrupt occurs).
+ * This causes the transfer in question to hang.
+ * The kludge below checks for this condition at each SOF and processes any
+ * blocked ETDs (after an arbitary 10 frame wait)
+ *
+ * With a single active transfer the usbtest test suite will run for days
+ * without the kludge.
+ * With other bus activity (eg mass storage) even just test1 will hang without
+ * the kludge.
+ */
+ u32 dword0;
+ int cc;
+
+ if (etd->active_count && !enabled) /* suspicious... */
+ enable_sof_int = 1;
+
+ if (!sof || enabled || !etd->active_count)
+ continue;
+
+ cc = etd_readl(imx21, etd_num, 2) >> DW2_COMPCODE;
+ if (cc == TD_NOTACCESSED)
+ continue;
+
+ if (++etd->active_count < 10)
+ continue;
+
+ dword0 = etd_readl(imx21, etd_num, 0);
+ dev_dbg(imx21->dev,
+ "unblock ETD %d dev=0x%X ep=0x%X cc=0x%02X!\n",
+ etd_num, dword0 & 0x7F,
+ (dword0 >> DW0_ENDPNT) & 0x0F,
+ cc);
+
+#ifdef DEBUG
+ dev_dbg(imx21->dev,
+ "frame: act=%d disact=%d"
+ " int=%d req=%d cur=%d\n",
+ etd->activated_frame,
+ etd->disactivated_frame,
+ etd->last_int_frame,
+ etd->last_req_frame,
+ readl(imx21->regs + USBH_FRMNUB));
+ imx21->debug_unblocks++;
+#endif
+ etd->active_count = 0;
+/* End of kludge */
+ }
+
+ if (etd->ep == NULL || etd->urb == NULL) {
+ dev_dbg(imx21->dev,
+ "Interrupt for unexpected etd %d"
+ " ep=%p urb=%p\n",
+ etd_num, etd->ep, etd->urb);
+ disactivate_etd(imx21, etd_num);
+ continue;
+ }
+
+ if (usb_pipeisoc(etd->urb->pipe))
+ isoc_etd_done(hcd, etd->urb, etd_num);
+ else
+ nonisoc_etd_done(hcd, etd->urb, etd_num);
+ }
+
+ /* only enable SOF interrupt if it may be needed for the kludge */
+ if (enable_sof_int)
+ set_register_bits(imx21, USBH_SYSIEN, USBH_SYSIEN_SOFINT);
+ else
+ clear_register_bits(imx21, USBH_SYSIEN, USBH_SYSIEN_SOFINT);
+
+
+ spin_unlock_irqrestore(&imx21->lock, flags);
+}
+
+static irqreturn_t imx21_irq(struct usb_hcd *hcd)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ u32 ints = readl(imx21->regs + USBH_SYSISR);
+
+ if (ints & USBH_SYSIEN_HERRINT)
+ dev_dbg(imx21->dev, "Scheduling error\n");
+
+ if (ints & USBH_SYSIEN_SORINT)
+ dev_dbg(imx21->dev, "Scheduling overrun\n");
+
+ if (ints & (USBH_SYSISR_DONEINT | USBH_SYSISR_SOFINT))
+ process_etds(hcd, imx21, ints & USBH_SYSISR_SOFINT);
+
+ writel(ints, imx21->regs + USBH_SYSISR);
+ return IRQ_HANDLED;
+}
+
+static void imx21_hc_endpoint_disable(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ unsigned long flags;
+ struct ep_priv *ep_priv;
+ int i;
+
+ if (ep == NULL)
+ return;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+ ep_priv = ep->hcpriv;
+ dev_vdbg(imx21->dev, "disable ep=%p, ep->hcpriv=%p\n", ep, ep_priv);
+
+ if (!list_empty(&ep->urb_list))
+ dev_dbg(imx21->dev, "ep's URB list is not empty\n");
+
+ if (ep_priv != NULL) {
+ for (i = 0; i < NUM_ISO_ETDS; i++) {
+ if (ep_priv->etd[i] > -1)
+ dev_dbg(imx21->dev, "free etd %d for disable\n",
+ ep_priv->etd[i]);
+
+ free_etd(imx21, ep_priv->etd[i]);
+ }
+ kfree(ep_priv);
+ ep->hcpriv = NULL;
+ }
+
+ for (i = 0; i < USB_NUM_ETD; i++) {
+ if (imx21->etd[i].alloc && imx21->etd[i].ep == ep) {
+ dev_err(imx21->dev,
+ "Active etd %d for disabled ep=%p!\n", i, ep);
+ free_etd(imx21, i);
+ }
+ }
+ free_epdmem(imx21, ep);
+ spin_unlock_irqrestore(&imx21->lock, flags);
+}
+
+/* =========================================== */
+/* Hub handling */
+/* =========================================== */
+
+static int get_hub_descriptor(struct usb_hcd *hcd,
+ struct usb_hub_descriptor *desc)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ desc->bDescriptorType = 0x29; /* HUB descriptor */
+ desc->bHubContrCurrent = 0;
+
+ desc->bNbrPorts = readl(imx21->regs + USBH_ROOTHUBA)
+ & USBH_ROOTHUBA_NDNSTMPRT_MASK;
+ desc->bDescLength = 9;
+ desc->bPwrOn2PwrGood = 0;
+ desc->wHubCharacteristics = (__force __u16) cpu_to_le16(
+ 0x0002 | /* No power switching */
+ 0x0010 | /* No over current protection */
+ 0);
+
+ desc->bitmap[0] = 1 << 1;
+ desc->bitmap[1] = ~0;
+ return 0;
+}
+
+static int imx21_hc_hub_status_data(struct usb_hcd *hcd, char *buf)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ int ports;
+ int changed = 0;
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+ ports = readl(imx21->regs + USBH_ROOTHUBA)
+ & USBH_ROOTHUBA_NDNSTMPRT_MASK;
+ if (ports > 7) {
+ ports = 7;
+ dev_err(imx21->dev, "ports %d > 7\n", ports);
+ }
+ for (i = 0; i < ports; i++) {
+ if (readl(imx21->regs + USBH_PORTSTAT(i)) &
+ (USBH_PORTSTAT_CONNECTSC |
+ USBH_PORTSTAT_PRTENBLSC |
+ USBH_PORTSTAT_PRTSTATSC |
+ USBH_PORTSTAT_OVRCURIC |
+ USBH_PORTSTAT_PRTRSTSC)) {
+
+ changed = 1;
+ buf[0] |= 1 << (i + 1);
+ }
+ }
+ spin_unlock_irqrestore(&imx21->lock, flags);
+
+ if (changed)
+ dev_info(imx21->dev, "Hub status changed\n");
+ return changed;
+}
+
+static int imx21_hc_hub_control(struct usb_hcd *hcd,
+ u16 typeReq,
+ u16 wValue, u16 wIndex, char *buf, u16 wLength)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ int rc = 0;
+ u32 status_write = 0;
+
+ switch (typeReq) {
+ case ClearHubFeature:
+ dev_dbg(imx21->dev, "ClearHubFeature\n");
+ switch (wValue) {
+ case C_HUB_OVER_CURRENT:
+ dev_dbg(imx21->dev, " OVER_CURRENT\n");
+ break;
+ case C_HUB_LOCAL_POWER:
+ dev_dbg(imx21->dev, " LOCAL_POWER\n");
+ break;
+ default:
+ dev_dbg(imx21->dev, " unknown\n");
+ rc = -EINVAL;
+ break;
+ }
+ break;
+
+ case ClearPortFeature:
+ dev_dbg(imx21->dev, "ClearPortFeature\n");
+ switch (wValue) {
+ case USB_PORT_FEAT_ENABLE:
+ dev_dbg(imx21->dev, " ENABLE\n");
+ status_write = USBH_PORTSTAT_CURCONST;
+ break;
+ case USB_PORT_FEAT_SUSPEND:
+ dev_dbg(imx21->dev, " SUSPEND\n");
+ status_write = USBH_PORTSTAT_PRTOVRCURI;
+ break;
+ case USB_PORT_FEAT_POWER:
+ dev_dbg(imx21->dev, " POWER\n");
+ status_write = USBH_PORTSTAT_LSDEVCON;
+ break;
+ case USB_PORT_FEAT_C_ENABLE:
+ dev_dbg(imx21->dev, " C_ENABLE\n");
+ status_write = USBH_PORTSTAT_PRTENBLSC;
+ break;
+ case USB_PORT_FEAT_C_SUSPEND:
+ dev_dbg(imx21->dev, " C_SUSPEND\n");
+ status_write = USBH_PORTSTAT_PRTSTATSC;
+ break;
+ case USB_PORT_FEAT_C_CONNECTION:
+ dev_dbg(imx21->dev, " C_CONNECTION\n");
+ status_write = USBH_PORTSTAT_CONNECTSC;
+ break;
+ case USB_PORT_FEAT_C_OVER_CURRENT:
+ dev_dbg(imx21->dev, " C_OVER_CURRENT\n");
+ status_write = USBH_PORTSTAT_OVRCURIC;
+ break;
+ case USB_PORT_FEAT_C_RESET:
+ dev_dbg(imx21->dev, " C_RESET\n");
+ status_write = USBH_PORTSTAT_PRTRSTSC;
+ break;
+ default:
+ dev_dbg(imx21->dev, " unknown\n");
+ rc = -EINVAL;
+ break;
+ }
+
+ break;
+
+ case GetHubDescriptor:
+ dev_dbg(imx21->dev, "GetHubDescriptor\n");
+ rc = get_hub_descriptor(hcd, (void *)buf);
+ break;
+
+ case GetHubStatus:
+ dev_dbg(imx21->dev, " GetHubStatus\n");
+ *(__le32 *) buf = 0;
+ break;
+
+ case GetPortStatus:
+ dev_dbg(imx21->dev, "GetPortStatus: port: %d, 0x%x\n",
+ wIndex, USBH_PORTSTAT(wIndex - 1));
+ *(__le32 *) buf = readl(imx21->regs +
+ USBH_PORTSTAT(wIndex - 1));
+ break;
+
+ case SetHubFeature:
+ dev_dbg(imx21->dev, "SetHubFeature\n");
+ switch (wValue) {
+ case C_HUB_OVER_CURRENT:
+ dev_dbg(imx21->dev, " OVER_CURRENT\n");
+ break;
+
+ case C_HUB_LOCAL_POWER:
+ dev_dbg(imx21->dev, " LOCAL_POWER\n");
+ break;
+ default:
+ dev_dbg(imx21->dev, " unknown\n");
+ rc = -EINVAL;
+ break;
+ }
+
+ break;
+
+ case SetPortFeature:
+ dev_dbg(imx21->dev, "SetPortFeature\n");
+ switch (wValue) {
+ case USB_PORT_FEAT_SUSPEND:
+ dev_dbg(imx21->dev, " SUSPEND\n");
+ status_write = USBH_PORTSTAT_PRTSUSPST;
+ break;
+ case USB_PORT_FEAT_POWER:
+ dev_dbg(imx21->dev, " POWER\n");
+ status_write = USBH_PORTSTAT_PRTPWRST;
+ break;
+ case USB_PORT_FEAT_RESET:
+ dev_dbg(imx21->dev, " RESET\n");
+ status_write = USBH_PORTSTAT_PRTRSTST;
+ break;
+ default:
+ dev_dbg(imx21->dev, " unknown\n");
+ rc = -EINVAL;
+ break;
+ }
+ break;
+
+ default:
+ dev_dbg(imx21->dev, " unknown\n");
+ rc = -EINVAL;
+ break;
+ }
+
+ if (status_write)
+ writel(status_write, imx21->regs + USBH_PORTSTAT(wIndex - 1));
+ return rc;
+}
+
+/* =========================================== */
+/* Host controller management */
+/* =========================================== */
+
+static int imx21_hc_reset(struct usb_hcd *hcd)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ unsigned long timeout;
+ unsigned long flags;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ /* Reset the Host controler modules */
+ writel(USBOTG_RST_RSTCTRL | USBOTG_RST_RSTRH |
+ USBOTG_RST_RSTHSIE | USBOTG_RST_RSTHC,
+ imx21->regs + USBOTG_RST_CTRL);
+
+ /* Wait for reset to finish */
+ timeout = jiffies + HZ;
+ while (readl(imx21->regs + USBOTG_RST_CTRL) != 0) {
+ if (time_after(jiffies, timeout)) {
+ spin_unlock_irqrestore(&imx21->lock, flags);
+ dev_err(imx21->dev, "timeout waiting for reset\n");
+ return -ETIMEDOUT;
+ }
+ spin_unlock_irq(&imx21->lock);
+ schedule_timeout(1);
+ spin_lock_irq(&imx21->lock);
+ }
+ spin_unlock_irqrestore(&imx21->lock, flags);
+ return 0;
+}
+
+static int __devinit imx21_hc_start(struct usb_hcd *hcd)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ unsigned long flags;
+ int i, j;
+ u32 hw_mode = USBOTG_HWMODE_CRECFG_HOST;
+ u32 usb_control = 0;
+
+ hw_mode |= ((imx21->pdata->host_xcvr << USBOTG_HWMODE_HOSTXCVR_SHIFT) &
+ USBOTG_HWMODE_HOSTXCVR_MASK);
+ hw_mode |= ((imx21->pdata->otg_xcvr << USBOTG_HWMODE_OTGXCVR_SHIFT) &
+ USBOTG_HWMODE_OTGXCVR_MASK);
+
+ if (imx21->pdata->host1_txenoe)
+ usb_control |= USBCTRL_HOST1_TXEN_OE;
+
+ if (!imx21->pdata->host1_xcverless)
+ usb_control |= USBCTRL_HOST1_BYP_TLL;
+
+ if (imx21->pdata->otg_ext_xcvr)
+ usb_control |= USBCTRL_OTC_RCV_RXDP;
+
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ writel((USBOTG_CLK_CTRL_HST | USBOTG_CLK_CTRL_MAIN),
+ imx21->regs + USBOTG_CLK_CTRL);
+ writel(hw_mode, imx21->regs + USBOTG_HWMODE);
+ writel(usb_control, imx21->regs + USBCTRL);
+ writel(USB_MISCCONTROL_SKPRTRY | USB_MISCCONTROL_ARBMODE,
+ imx21->regs + USB_MISCCONTROL);
+
+ /* Clear the ETDs */
+ for (i = 0; i < USB_NUM_ETD; i++)
+ for (j = 0; j < 4; j++)
+ etd_writel(imx21, i, j, 0);
+
+ /* Take the HC out of reset */
+ writel(USBH_HOST_CTRL_HCUSBSTE_OPERATIONAL | USBH_HOST_CTRL_CTLBLKSR_1,
+ imx21->regs + USBH_HOST_CTRL);
+
+ /* Enable ports */
+ if (imx21->pdata->enable_otg_host)
+ writel(USBH_PORTSTAT_PRTPWRST | USBH_PORTSTAT_PRTENABST,
+ imx21->regs + USBH_PORTSTAT(0));
+
+ if (imx21->pdata->enable_host1)
+ writel(USBH_PORTSTAT_PRTPWRST | USBH_PORTSTAT_PRTENABST,
+ imx21->regs + USBH_PORTSTAT(1));
+
+ if (imx21->pdata->enable_host2)
+ writel(USBH_PORTSTAT_PRTPWRST | USBH_PORTSTAT_PRTENABST,
+ imx21->regs + USBH_PORTSTAT(2));
+
+
+ hcd->state = HC_STATE_RUNNING;
+
+ /* Enable host controller interrupts */
+ set_register_bits(imx21, USBH_SYSIEN,
+ USBH_SYSIEN_HERRINT |
+ USBH_SYSIEN_DONEINT | USBH_SYSIEN_SORINT);
+ set_register_bits(imx21, USBOTG_CINT_STEN, USBOTG_HCINT);
+
+ spin_unlock_irqrestore(&imx21->lock, flags);
+
+ return 0;
+}
+
+static void imx21_hc_stop(struct usb_hcd *hcd)
+{
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ unsigned long flags;
+
+ spin_lock_irqsave(&imx21->lock, flags);
+
+ writel(0, imx21->regs + USBH_SYSIEN);
+ clear_register_bits(imx21, USBOTG_CINT_STEN, USBOTG_HCINT);
+ clear_register_bits(imx21, USBOTG_CLK_CTRL_HST | USBOTG_CLK_CTRL_MAIN,
+ USBOTG_CLK_CTRL);
+ spin_unlock_irqrestore(&imx21->lock, flags);
+}
+
+/* =========================================== */
+/* Driver glue */
+/* =========================================== */
+
+static struct hc_driver imx21_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "IMX21 USB Host Controller",
+ .hcd_priv_size = sizeof(struct imx21),
+
+ .flags = HCD_USB11,
+ .irq = imx21_irq,
+
+ .reset = imx21_hc_reset,
+ .start = imx21_hc_start,
+ .stop = imx21_hc_stop,
+
+ /* I/O requests */
+ .urb_enqueue = imx21_hc_urb_enqueue,
+ .urb_dequeue = imx21_hc_urb_dequeue,
+ .endpoint_disable = imx21_hc_endpoint_disable,
+
+ /* scheduling support */
+ .get_frame_number = imx21_hc_get_frame,
+
+ /* Root hub support */
+ .hub_status_data = imx21_hc_hub_status_data,
+ .hub_control = imx21_hc_hub_control,
+
+};
+
+static struct mx21_usbh_platform_data default_pdata = {
+ .host_xcvr = MX21_USBXCVR_TXDIF_RXDIF,
+ .otg_xcvr = MX21_USBXCVR_TXDIF_RXDIF,
+ .enable_host1 = 1,
+ .enable_host2 = 1,
+ .enable_otg_host = 1,
+
+};
+
+static int imx21_remove(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+ struct imx21 *imx21 = hcd_to_imx21(hcd);
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ remove_debug_files(imx21);
+ usb_remove_hcd(hcd);
+
+ if (res != NULL) {
+ clk_disable(imx21->clk);
+ clk_put(imx21->clk);
+ iounmap(imx21->regs);
+ release_mem_region(res->start, resource_size(res));
+ }
+
+ kfree(hcd);
+ return 0;
+}
+
+
+static int imx21_probe(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd;
+ struct imx21 *imx21;
+ struct resource *res;
+ int ret;
+ int irq;
+
+ printk(KERN_INFO "%s\n", imx21_hc_driver.product_desc);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return -ENXIO;
+
+ hcd = usb_create_hcd(&imx21_hc_driver,
+ &pdev->dev, dev_name(&pdev->dev));
+ if (hcd == NULL) {
+ dev_err(&pdev->dev, "Cannot create hcd (%s)\n",
+ dev_name(&pdev->dev));
+ return -ENOMEM;
+ }
+
+ imx21 = hcd_to_imx21(hcd);
+ imx21->dev = &pdev->dev;
+ imx21->pdata = pdev->dev.platform_data;
+ if (!imx21->pdata)
+ imx21->pdata = &default_pdata;
+
+ spin_lock_init(&imx21->lock);
+ INIT_LIST_HEAD(&imx21->dmem_list);
+ INIT_LIST_HEAD(&imx21->queue_for_etd);
+ INIT_LIST_HEAD(&imx21->queue_for_dmem);
+ create_debug_files(imx21);
+
+ res = request_mem_region(res->start, resource_size(res), hcd_name);
+ if (!res) {
+ ret = -EBUSY;
+ goto failed_request_mem;
+ }
+
+ imx21->regs = ioremap(res->start, resource_size(res));
+ if (imx21->regs == NULL) {
+ dev_err(imx21->dev, "Cannot map registers\n");
+ ret = -ENOMEM;
+ goto failed_ioremap;
+ }
+
+ /* Enable clocks source */
+ imx21->clk = clk_get(imx21->dev, NULL);
+ if (IS_ERR(imx21->clk)) {
+ dev_err(imx21->dev, "no clock found\n");
+ ret = PTR_ERR(imx21->clk);
+ goto failed_clock_get;
+ }
+
+ ret = clk_set_rate(imx21->clk, clk_round_rate(imx21->clk, 48000000));
+ if (ret)
+ goto failed_clock_set;
+ ret = clk_enable(imx21->clk);
+ if (ret)
+ goto failed_clock_enable;
+
+ dev_info(imx21->dev, "Hardware HC revision: 0x%02X\n",
+ (readl(imx21->regs + USBOTG_HWMODE) >> 16) & 0xFF);
+
+ ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
+ if (ret != 0) {
+ dev_err(imx21->dev, "usb_add_hcd() returned %d\n", ret);
+ goto failed_add_hcd;
+ }
+
+ return 0;
+
+failed_add_hcd:
+ clk_disable(imx21->clk);
+failed_clock_enable:
+failed_clock_set:
+ clk_put(imx21->clk);
+failed_clock_get:
+ iounmap(imx21->regs);
+failed_ioremap:
+ release_mem_region(res->start, res->end - res->start);
+failed_request_mem:
+ remove_debug_files(imx21);
+ usb_put_hcd(hcd);
+ return ret;
+}
+
+static struct platform_driver imx21_hcd_driver = {
+ .driver = {
+ .name = (char *)hcd_name,
+ },
+ .probe = imx21_probe,
+ .remove = imx21_remove,
+ .suspend = NULL,
+ .resume = NULL,
+};
+
+static int __init imx21_hcd_init(void)
+{
+ return platform_driver_register(&imx21_hcd_driver);
+}
+
+static void __exit imx21_hcd_cleanup(void)
+{
+ platform_driver_unregister(&imx21_hcd_driver);
+}
+
+module_init(imx21_hcd_init);
+module_exit(imx21_hcd_cleanup);
+
+MODULE_DESCRIPTION("i.MX21 USB Host controller");
+MODULE_AUTHOR("Martin Fuzzey");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:imx21-hcd");
--- /dev/null
+/*
+ * Macros and prototypes for i.MX21
+ *
+ * Copyright (C) 2006 Loping Dog Embedded Systems
+ * Copyright (C) 2009 Martin Fuzzey
+ * Originally written by Jay Monkman <jtm@lopingdog.com>
+ * Ported to 2.6.30, debugged and enhanced by Martin Fuzzey
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __LINUX_IMX21_HCD_H__
+#define __LINUX_IMX21_HCD_H__
+
+#include <mach/mx21-usbhost.h>
+
+#define NUM_ISO_ETDS 2
+#define USB_NUM_ETD 32
+#define DMEM_SIZE 4096
+
+/* Register definitions */
+#define USBOTG_HWMODE 0x00
+#define USBOTG_HWMODE_ANASDBEN (1 << 14)
+#define USBOTG_HWMODE_OTGXCVR_SHIFT 6
+#define USBOTG_HWMODE_OTGXCVR_MASK (3 << 6)
+#define USBOTG_HWMODE_OTGXCVR_TD_RD (0 << 6)
+#define USBOTG_HWMODE_OTGXCVR_TS_RD (2 << 6)
+#define USBOTG_HWMODE_OTGXCVR_TD_RS (1 << 6)
+#define USBOTG_HWMODE_OTGXCVR_TS_RS (3 << 6)
+#define USBOTG_HWMODE_HOSTXCVR_SHIFT 4
+#define USBOTG_HWMODE_HOSTXCVR_MASK (3 << 4)
+#define USBOTG_HWMODE_HOSTXCVR_TD_RD (0 << 4)
+#define USBOTG_HWMODE_HOSTXCVR_TS_RD (2 << 4)
+#define USBOTG_HWMODE_HOSTXCVR_TD_RS (1 << 4)
+#define USBOTG_HWMODE_HOSTXCVR_TS_RS (3 << 4)
+#define USBOTG_HWMODE_CRECFG_MASK (3 << 0)
+#define USBOTG_HWMODE_CRECFG_HOST (1 << 0)
+#define USBOTG_HWMODE_CRECFG_FUNC (2 << 0)
+#define USBOTG_HWMODE_CRECFG_HNP (3 << 0)
+
+#define USBOTG_CINT_STAT 0x04
+#define USBOTG_CINT_STEN 0x08
+#define USBOTG_ASHNPINT (1 << 5)
+#define USBOTG_ASFCINT (1 << 4)
+#define USBOTG_ASHCINT (1 << 3)
+#define USBOTG_SHNPINT (1 << 2)
+#define USBOTG_FCINT (1 << 1)
+#define USBOTG_HCINT (1 << 0)
+
+#define USBOTG_CLK_CTRL 0x0c
+#define USBOTG_CLK_CTRL_FUNC (1 << 2)
+#define USBOTG_CLK_CTRL_HST (1 << 1)
+#define USBOTG_CLK_CTRL_MAIN (1 << 0)
+
+#define USBOTG_RST_CTRL 0x10
+#define USBOTG_RST_RSTI2C (1 << 15)
+#define USBOTG_RST_RSTCTRL (1 << 5)
+#define USBOTG_RST_RSTFC (1 << 4)
+#define USBOTG_RST_RSTFSKE (1 << 3)
+#define USBOTG_RST_RSTRH (1 << 2)
+#define USBOTG_RST_RSTHSIE (1 << 1)
+#define USBOTG_RST_RSTHC (1 << 0)
+
+#define USBOTG_FRM_INTVL 0x14
+#define USBOTG_FRM_REMAIN 0x18
+#define USBOTG_HNP_CSR 0x1c
+#define USBOTG_HNP_ISR 0x2c
+#define USBOTG_HNP_IEN 0x30
+
+#define USBOTG_I2C_TXCVR_REG(x) (0x100 + (x))
+#define USBOTG_I2C_XCVR_DEVAD 0x118
+#define USBOTG_I2C_SEQ_OP_REG 0x119
+#define USBOTG_I2C_SEQ_RD_STARTAD 0x11a
+#define USBOTG_I2C_OP_CTRL_REG 0x11b
+#define USBOTG_I2C_SCLK_TO_SCK_HPER 0x11e
+#define USBOTG_I2C_MASTER_INT_REG 0x11f
+
+#define USBH_HOST_CTRL 0x80
+#define USBH_HOST_CTRL_HCRESET (1 << 31)
+#define USBH_HOST_CTRL_SCHDOVR(x) ((x) << 16)
+#define USBH_HOST_CTRL_RMTWUEN (1 << 4)
+#define USBH_HOST_CTRL_HCUSBSTE_RESET (0 << 2)
+#define USBH_HOST_CTRL_HCUSBSTE_RESUME (1 << 2)
+#define USBH_HOST_CTRL_HCUSBSTE_OPERATIONAL (2 << 2)
+#define USBH_HOST_CTRL_HCUSBSTE_SUSPEND (3 << 2)
+#define USBH_HOST_CTRL_CTLBLKSR_1 (0 << 0)
+#define USBH_HOST_CTRL_CTLBLKSR_2 (1 << 0)
+#define USBH_HOST_CTRL_CTLBLKSR_3 (2 << 0)
+#define USBH_HOST_CTRL_CTLBLKSR_4 (3 << 0)
+
+#define USBH_SYSISR 0x88
+#define USBH_SYSISR_PSCINT (1 << 6)
+#define USBH_SYSISR_FMOFINT (1 << 5)
+#define USBH_SYSISR_HERRINT (1 << 4)
+#define USBH_SYSISR_RESDETINT (1 << 3)
+#define USBH_SYSISR_SOFINT (1 << 2)
+#define USBH_SYSISR_DONEINT (1 << 1)
+#define USBH_SYSISR_SORINT (1 << 0)
+
+#define USBH_SYSIEN 0x8c
+#define USBH_SYSIEN_PSCINT (1 << 6)
+#define USBH_SYSIEN_FMOFINT (1 << 5)
+#define USBH_SYSIEN_HERRINT (1 << 4)
+#define USBH_SYSIEN_RESDETINT (1 << 3)
+#define USBH_SYSIEN_SOFINT (1 << 2)
+#define USBH_SYSIEN_DONEINT (1 << 1)
+#define USBH_SYSIEN_SORINT (1 << 0)
+
+#define USBH_XBUFSTAT 0x98
+#define USBH_YBUFSTAT 0x9c
+#define USBH_XYINTEN 0xa0
+#define USBH_XFILLSTAT 0xa8
+#define USBH_YFILLSTAT 0xac
+#define USBH_ETDENSET 0xc0
+#define USBH_ETDENCLR 0xc4
+#define USBH_IMMEDINT 0xcc
+#define USBH_ETDDONESTAT 0xd0
+#define USBH_ETDDONEEN 0xd4
+#define USBH_FRMNUB 0xe0
+#define USBH_LSTHRESH 0xe4
+
+#define USBH_ROOTHUBA 0xe8
+#define USBH_ROOTHUBA_PWRTOGOOD_MASK (0xff)
+#define USBH_ROOTHUBA_PWRTOGOOD_SHIFT (24)
+#define USBH_ROOTHUBA_NOOVRCURP (1 << 12)
+#define USBH_ROOTHUBA_OVRCURPM (1 << 11)
+#define USBH_ROOTHUBA_DEVTYPE (1 << 10)
+#define USBH_ROOTHUBA_PWRSWTMD (1 << 9)
+#define USBH_ROOTHUBA_NOPWRSWT (1 << 8)
+#define USBH_ROOTHUBA_NDNSTMPRT_MASK (0xff)
+
+#define USBH_ROOTHUBB 0xec
+#define USBH_ROOTHUBB_PRTPWRCM(x) (1 << ((x) + 16))
+#define USBH_ROOTHUBB_DEVREMOVE(x) (1 << (x))
+
+#define USBH_ROOTSTAT 0xf0
+#define USBH_ROOTSTAT_CLRRMTWUE (1 << 31)
+#define USBH_ROOTSTAT_OVRCURCHG (1 << 17)
+#define USBH_ROOTSTAT_DEVCONWUE (1 << 15)
+#define USBH_ROOTSTAT_OVRCURI (1 << 1)
+#define USBH_ROOTSTAT_LOCPWRS (1 << 0)
+
+#define USBH_PORTSTAT(x) (0xf4 + ((x) * 4))
+#define USBH_PORTSTAT_PRTRSTSC (1 << 20)
+#define USBH_PORTSTAT_OVRCURIC (1 << 19)
+#define USBH_PORTSTAT_PRTSTATSC (1 << 18)
+#define USBH_PORTSTAT_PRTENBLSC (1 << 17)
+#define USBH_PORTSTAT_CONNECTSC (1 << 16)
+#define USBH_PORTSTAT_LSDEVCON (1 << 9)
+#define USBH_PORTSTAT_PRTPWRST (1 << 8)
+#define USBH_PORTSTAT_PRTRSTST (1 << 4)
+#define USBH_PORTSTAT_PRTOVRCURI (1 << 3)
+#define USBH_PORTSTAT_PRTSUSPST (1 << 2)
+#define USBH_PORTSTAT_PRTENABST (1 << 1)
+#define USBH_PORTSTAT_CURCONST (1 << 0)
+
+#define USB_DMAREV 0x800
+#define USB_DMAINTSTAT 0x804
+#define USB_DMAINTSTAT_EPERR (1 << 1)
+#define USB_DMAINTSTAT_ETDERR (1 << 0)
+
+#define USB_DMAINTEN 0x808
+#define USB_DMAINTEN_EPERRINTEN (1 << 1)
+#define USB_DMAINTEN_ETDERRINTEN (1 << 0)
+
+#define USB_ETDDMAERSTAT 0x80c
+#define USB_EPDMAERSTAT 0x810
+#define USB_ETDDMAEN 0x820
+#define USB_EPDMAEN 0x824
+#define USB_ETDDMAXTEN 0x828
+#define USB_EPDMAXTEN 0x82c
+#define USB_ETDDMAENXYT 0x830
+#define USB_EPDMAENXYT 0x834
+#define USB_ETDDMABST4EN 0x838
+#define USB_EPDMABST4EN 0x83c
+
+#define USB_MISCCONTROL 0x840
+#define USB_MISCCONTROL_ISOPREVFRM (1 << 3)
+#define USB_MISCCONTROL_SKPRTRY (1 << 2)
+#define USB_MISCCONTROL_ARBMODE (1 << 1)
+#define USB_MISCCONTROL_FILTCC (1 << 0)
+
+#define USB_ETDDMACHANLCLR 0x848
+#define USB_EPDMACHANLCLR 0x84c
+#define USB_ETDSMSA(x) (0x900 + ((x) * 4))
+#define USB_EPSMSA(x) (0x980 + ((x) * 4))
+#define USB_ETDDMABUFPTR(x) (0xa00 + ((x) * 4))
+#define USB_EPDMABUFPTR(x) (0xa80 + ((x) * 4))
+
+#define USB_ETD_DWORD(x, w) (0x200 + ((x) * 16) + ((w) * 4))
+#define DW0_ADDRESS 0
+#define DW0_ENDPNT 7
+#define DW0_DIRECT 11
+#define DW0_SPEED 13
+#define DW0_FORMAT 14
+#define DW0_MAXPKTSIZ 16
+#define DW0_HALTED 27
+#define DW0_TOGCRY 28
+#define DW0_SNDNAK 30
+
+#define DW1_XBUFSRTAD 0
+#define DW1_YBUFSRTAD 16
+
+#define DW2_RTRYDELAY 0
+#define DW2_POLINTERV 0
+#define DW2_STARTFRM 0
+#define DW2_RELPOLPOS 8
+#define DW2_DIRPID 16
+#define DW2_BUFROUND 18
+#define DW2_DELAYINT 19
+#define DW2_DATATOG 22
+#define DW2_ERRORCNT 24
+#define DW2_COMPCODE 28
+
+#define DW3_TOTBYECNT 0
+#define DW3_PKTLEN0 0
+#define DW3_COMPCODE0 12
+#define DW3_PKTLEN1 16
+#define DW3_BUFSIZE 21
+#define DW3_COMPCODE1 28
+
+#define USBCTRL 0x600
+#define USBCTRL_I2C_WU_INT_STAT (1 << 27)
+#define USBCTRL_OTG_WU_INT_STAT (1 << 26)
+#define USBCTRL_HOST_WU_INT_STAT (1 << 25)
+#define USBCTRL_FNT_WU_INT_STAT (1 << 24)
+#define USBCTRL_I2C_WU_INT_EN (1 << 19)
+#define USBCTRL_OTG_WU_INT_EN (1 << 18)
+#define USBCTRL_HOST_WU_INT_EN (1 << 17)
+#define USBCTRL_FNT_WU_INT_EN (1 << 16)
+#define USBCTRL_OTC_RCV_RXDP (1 << 13)
+#define USBCTRL_HOST1_BYP_TLL (1 << 12)
+#define USBCTRL_OTG_BYP_VAL(x) ((x) << 10)
+#define USBCTRL_HOST1_BYP_VAL(x) ((x) << 8)
+#define USBCTRL_OTG_PWR_MASK (1 << 6)
+#define USBCTRL_HOST1_PWR_MASK (1 << 5)
+#define USBCTRL_HOST2_PWR_MASK (1 << 4)
+#define USBCTRL_USB_BYP (1 << 2)
+#define USBCTRL_HOST1_TXEN_OE (1 << 1)
+
+
+/* Values in TD blocks */
+#define TD_DIR_SETUP 0
+#define TD_DIR_OUT 1
+#define TD_DIR_IN 2
+#define TD_FORMAT_CONTROL 0
+#define TD_FORMAT_ISO 1
+#define TD_FORMAT_BULK 2
+#define TD_FORMAT_INT 3
+#define TD_TOGGLE_CARRY 0
+#define TD_TOGGLE_DATA0 2
+#define TD_TOGGLE_DATA1 3
+
+/* control transfer states */
+#define US_CTRL_SETUP 2
+#define US_CTRL_DATA 1
+#define US_CTRL_ACK 0
+
+/* bulk transfer main state and 0-length packet */
+#define US_BULK 1
+#define US_BULK0 0
+
+/*ETD format description*/
+#define IMX_FMT_CTRL 0x0
+#define IMX_FMT_ISO 0x1
+#define IMX_FMT_BULK 0x2
+#define IMX_FMT_INT 0x3
+
+static char fmt_urb_to_etd[4] = {
+/*PIPE_ISOCHRONOUS*/ IMX_FMT_ISO,
+/*PIPE_INTERRUPT*/ IMX_FMT_INT,
+/*PIPE_CONTROL*/ IMX_FMT_CTRL,
+/*PIPE_BULK*/ IMX_FMT_BULK
+};
+
+/* condition (error) CC codes and mapping (OHCI like) */
+
+#define TD_CC_NOERROR 0x00
+#define TD_CC_CRC 0x01
+#define TD_CC_BITSTUFFING 0x02
+#define TD_CC_DATATOGGLEM 0x03
+#define TD_CC_STALL 0x04
+#define TD_DEVNOTRESP 0x05
+#define TD_PIDCHECKFAIL 0x06
+/*#define TD_UNEXPECTEDPID 0x07 - reserved, not active on MX2*/
+#define TD_DATAOVERRUN 0x08
+#define TD_DATAUNDERRUN 0x09
+#define TD_BUFFEROVERRUN 0x0C
+#define TD_BUFFERUNDERRUN 0x0D
+#define TD_SCHEDULEOVERRUN 0x0E
+#define TD_NOTACCESSED 0x0F
+
+static const int cc_to_error[16] = {
+ /* No Error */ 0,
+ /* CRC Error */ -EILSEQ,
+ /* Bit Stuff */ -EPROTO,
+ /* Data Togg */ -EILSEQ,
+ /* Stall */ -EPIPE,
+ /* DevNotResp */ -ETIMEDOUT,
+ /* PIDCheck */ -EPROTO,
+ /* UnExpPID */ -EPROTO,
+ /* DataOver */ -EOVERFLOW,
+ /* DataUnder */ -EREMOTEIO,
+ /* (for hw) */ -EIO,
+ /* (for hw) */ -EIO,
+ /* BufferOver */ -ECOMM,
+ /* BuffUnder */ -ENOSR,
+ /* (for HCD) */ -ENOSPC,
+ /* (for HCD) */ -EALREADY
+};
+
+/* HCD data associated with a usb core URB */
+struct urb_priv {
+ struct urb *urb;
+ struct usb_host_endpoint *ep;
+ int active;
+ int state;
+ struct td *isoc_td;
+ int isoc_remaining;
+ int isoc_status;
+};
+
+/* HCD data associated with a usb core endpoint */
+struct ep_priv {
+ struct usb_host_endpoint *ep;
+ struct list_head td_list;
+ struct list_head queue;
+ int etd[NUM_ISO_ETDS];
+ int waiting_etd;
+};
+
+/* isoc packet */
+struct td {
+ struct list_head list;
+ struct urb *urb;
+ struct usb_host_endpoint *ep;
+ dma_addr_t data;
+ unsigned long buf_addr;
+ int len;
+ int frame;
+ int isoc_index;
+};
+
+/* HCD data associated with a hardware ETD */
+struct etd_priv {
+ struct usb_host_endpoint *ep;
+ struct urb *urb;
+ struct td *td;
+ struct list_head queue;
+ dma_addr_t dma_handle;
+ int alloc;
+ int len;
+ int dmem_size;
+ int dmem_offset;
+ int active_count;
+#ifdef DEBUG
+ int activated_frame;
+ int disactivated_frame;
+ int last_int_frame;
+ int last_req_frame;
+ u32 submitted_dwords[4];
+#endif
+};
+
+/* Hardware data memory info */
+struct imx21_dmem_area {
+ struct usb_host_endpoint *ep;
+ unsigned int offset;
+ unsigned int size;
+ struct list_head list;
+};
+
+#ifdef DEBUG
+struct debug_usage_stats {
+ unsigned int value;
+ unsigned int maximum;
+};
+
+struct debug_stats {
+ unsigned long submitted;
+ unsigned long completed_ok;
+ unsigned long completed_failed;
+ unsigned long unlinked;
+ unsigned long queue_etd;
+ unsigned long queue_dmem;
+};
+
+struct debug_isoc_trace {
+ int schedule_frame;
+ int submit_frame;
+ int request_len;
+ int done_frame;
+ int done_len;
+ int cc;
+ struct td *td;
+};
+#endif
+
+/* HCD data structure */
+struct imx21 {
+ spinlock_t lock;
+ struct device *dev;
+ struct mx21_usbh_platform_data *pdata;
+ struct list_head dmem_list;
+ struct list_head queue_for_etd; /* eps queued due to etd shortage */
+ struct list_head queue_for_dmem; /* etds queued due to dmem shortage */
+ struct etd_priv etd[USB_NUM_ETD];
+ struct clk *clk;
+ void __iomem *regs;
+#ifdef DEBUG
+ struct dentry *debug_root;
+ struct debug_stats nonisoc_stats;
+ struct debug_stats isoc_stats;
+ struct debug_usage_stats etd_usage;
+ struct debug_usage_stats dmem_usage;
+ struct debug_isoc_trace isoc_trace[20];
+ struct debug_isoc_trace isoc_trace_failed[20];
+ unsigned long debug_unblocks;
+ int isoc_trace_index;
+ int isoc_trace_index_failed;
+#endif
+};
+
+#endif
/* avoid all allocations within spinlocks: request or endpoint */
if (!hep->hcpriv) {
- ep = kcalloc(1, sizeof *ep, mem_flags);
+ ep = kzalloc(sizeof *ep, mem_flags);
if (!ep)
return -ENOMEM;
}
}
irq = irq_res->start;
-#ifdef CONFIG_USB_HCD_DMA
- if (pdev->dev.dma_mask) {
- struct resource *dma_res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-
- if (!dma_res) {
- retval = -ENODEV;
- goto err1;
- }
- isp1362_hcd->data_dma = dma_res->start;
- isp1362_hcd->max_dma_size = resource_len(dma_res);
- }
-#else
if (pdev->dev.dma_mask) {
DBG(1, "won't do DMA");
retval = -ENODEV;
goto err1;
}
-#endif
if (!request_mem_region(addr->start, resource_len(addr), hcd_name)) {
retval = -EBUSY;
#include <linux/debugfs.h>
#include <linux/uaccess.h>
#include <linux/io.h>
+#include <linux/mm.h>
#include <asm/unaligned.h>
+#include <asm/cacheflush.h>
#include "../core/hcd.h"
#include "isp1760-hcd.h"
status = 0;
}
+ if (usb_pipein(urb->pipe) && usb_pipetype(urb->pipe) != PIPE_CONTROL) {
+ void *ptr;
+ for (ptr = urb->transfer_buffer;
+ ptr < urb->transfer_buffer + urb->transfer_buffer_length;
+ ptr += PAGE_SIZE)
+ flush_dcache_page(virt_to_page(ptr));
+ }
+
/* complete() can reenter this HCD */
usb_hcd_unlink_urb_from_ep(priv_to_hcd(priv), urb);
spin_unlock(&priv->lock);
return 0;
}
-static struct of_device_id of_isp1760_match[] = {
+static const struct of_device_id of_isp1760_match[] = {
{
.compatible = "nxp,usb-isp1760",
},
--- /dev/null
+/*
+ * OHCI HCD (Host Controller Driver) for USB.
+ *
+ * TI DA8xx (OMAP-L1x) Bus Glue
+ *
+ * Derived from: ohci-omap.c and ohci-s3c2410.c
+ * Copyright (C) 2008-2009 MontaVista Software, Inc. <source@mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+
+#include <mach/da8xx.h>
+#include <mach/usb.h>
+
+#ifndef CONFIG_ARCH_DAVINCI_DA8XX
+#error "This file is DA8xx bus glue. Define CONFIG_ARCH_DAVINCI_DA8XX."
+#endif
+
+#define CFGCHIP2 DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG)
+
+static struct clk *usb11_clk;
+static struct clk *usb20_clk;
+
+/* Over-current indicator change bitmask */
+static volatile u16 ocic_mask;
+
+static void ohci_da8xx_clock(int on)
+{
+ u32 cfgchip2;
+
+ cfgchip2 = __raw_readl(CFGCHIP2);
+ if (on) {
+ clk_enable(usb11_clk);
+
+ /*
+ * If USB 1.1 reference clock is sourced from USB 2.0 PHY, we
+ * need to enable the USB 2.0 module clocking, start its PHY,
+ * and not allow it to stop the clock during USB 2.0 suspend.
+ */
+ if (!(cfgchip2 & CFGCHIP2_USB1PHYCLKMUX)) {
+ clk_enable(usb20_clk);
+
+ cfgchip2 &= ~(CFGCHIP2_RESET | CFGCHIP2_PHYPWRDN);
+ cfgchip2 |= CFGCHIP2_PHY_PLLON;
+ __raw_writel(cfgchip2, CFGCHIP2);
+
+ pr_info("Waiting for USB PHY clock good...\n");
+ while (!(__raw_readl(CFGCHIP2) & CFGCHIP2_PHYCLKGD))
+ cpu_relax();
+ }
+
+ /* Enable USB 1.1 PHY */
+ cfgchip2 |= CFGCHIP2_USB1SUSPENDM;
+ } else {
+ clk_disable(usb11_clk);
+ if (!(cfgchip2 & CFGCHIP2_USB1PHYCLKMUX))
+ clk_disable(usb20_clk);
+
+ /* Disable USB 1.1 PHY */
+ cfgchip2 &= ~CFGCHIP2_USB1SUSPENDM;
+ }
+ __raw_writel(cfgchip2, CFGCHIP2);
+}
+
+/*
+ * Handle the port over-current indicator change.
+ */
+static void ohci_da8xx_ocic_handler(struct da8xx_ohci_root_hub *hub,
+ unsigned port)
+{
+ ocic_mask |= 1 << port;
+
+ /* Once over-current is detected, the port needs to be powered down */
+ if (hub->get_oci(port) > 0)
+ hub->set_power(port, 0);
+}
+
+static int ohci_da8xx_init(struct usb_hcd *hcd)
+{
+ struct device *dev = hcd->self.controller;
+ struct da8xx_ohci_root_hub *hub = dev->platform_data;
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+ int result;
+ u32 rh_a;
+
+ dev_dbg(dev, "starting USB controller\n");
+
+ ohci_da8xx_clock(1);
+
+ /*
+ * DA8xx only have 1 port connected to the pins but the HC root hub
+ * register A reports 2 ports, thus we'll have to override it...
+ */
+ ohci->num_ports = 1;
+
+ result = ohci_init(ohci);
+ if (result < 0)
+ return result;
+
+ /*
+ * Since we're providing a board-specific root hub port power control
+ * and over-current reporting, we have to override the HC root hub A
+ * register's default value, so that ohci_hub_control() could return
+ * the correct hub descriptor...
+ */
+ rh_a = ohci_readl(ohci, &ohci->regs->roothub.a);
+ if (hub->set_power) {
+ rh_a &= ~RH_A_NPS;
+ rh_a |= RH_A_PSM;
+ }
+ if (hub->get_oci) {
+ rh_a &= ~RH_A_NOCP;
+ rh_a |= RH_A_OCPM;
+ }
+ rh_a &= ~RH_A_POTPGT;
+ rh_a |= hub->potpgt << 24;
+ ohci_writel(ohci, rh_a, &ohci->regs->roothub.a);
+
+ return result;
+}
+
+static void ohci_da8xx_stop(struct usb_hcd *hcd)
+{
+ ohci_stop(hcd);
+ ohci_da8xx_clock(0);
+}
+
+static int ohci_da8xx_start(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+ int result;
+
+ result = ohci_run(ohci);
+ if (result < 0)
+ ohci_da8xx_stop(hcd);
+
+ return result;
+}
+
+/*
+ * Update the status data from the hub with the over-current indicator change.
+ */
+static int ohci_da8xx_hub_status_data(struct usb_hcd *hcd, char *buf)
+{
+ int length = ohci_hub_status_data(hcd, buf);
+
+ /* See if we have OCIC bit set on port 1 */
+ if (ocic_mask & (1 << 1)) {
+ dev_dbg(hcd->self.controller, "over-current indicator change "
+ "on port 1\n");
+
+ if (!length)
+ length = 1;
+
+ buf[0] |= 1 << 1;
+ }
+ return length;
+}
+
+/*
+ * Look at the control requests to the root hub and see if we need to override.
+ */
+static int ohci_da8xx_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength)
+{
+ struct device *dev = hcd->self.controller;
+ struct da8xx_ohci_root_hub *hub = dev->platform_data;
+ int temp;
+
+ switch (typeReq) {
+ case GetPortStatus:
+ /* Check the port number */
+ if (wIndex != 1)
+ break;
+
+ dev_dbg(dev, "GetPortStatus(%u)\n", wIndex);
+
+ temp = roothub_portstatus(hcd_to_ohci(hcd), wIndex - 1);
+
+ /* The port power status (PPS) bit defaults to 1 */
+ if (hub->get_power && hub->get_power(wIndex) == 0)
+ temp &= ~RH_PS_PPS;
+
+ /* The port over-current indicator (POCI) bit is always 0 */
+ if (hub->get_oci && hub->get_oci(wIndex) > 0)
+ temp |= RH_PS_POCI;
+
+ /* The over-current indicator change (OCIC) bit is 0 too */
+ if (ocic_mask & (1 << wIndex))
+ temp |= RH_PS_OCIC;
+
+ put_unaligned(cpu_to_le32(temp), (__le32 *)buf);
+ return 0;
+ case SetPortFeature:
+ temp = 1;
+ goto check_port;
+ case ClearPortFeature:
+ temp = 0;
+
+check_port:
+ /* Check the port number */
+ if (wIndex != 1)
+ break;
+
+ switch (wValue) {
+ case USB_PORT_FEAT_POWER:
+ dev_dbg(dev, "%sPortFeature(%u): %s\n",
+ temp ? "Set" : "Clear", wIndex, "POWER");
+
+ if (!hub->set_power)
+ return -EPIPE;
+
+ return hub->set_power(wIndex, temp) ? -EPIPE : 0;
+ case USB_PORT_FEAT_C_OVER_CURRENT:
+ dev_dbg(dev, "%sPortFeature(%u): %s\n",
+ temp ? "Set" : "Clear", wIndex,
+ "C_OVER_CURRENT");
+
+ if (temp)
+ ocic_mask |= 1 << wIndex;
+ else
+ ocic_mask &= ~(1 << wIndex);
+ return 0;
+ }
+ }
+
+ return ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
+}
+
+static const struct hc_driver ohci_da8xx_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "DA8xx OHCI",
+ .hcd_priv_size = sizeof(struct ohci_hcd),
+
+ /*
+ * generic hardware linkage
+ */
+ .irq = ohci_irq,
+ .flags = HCD_USB11 | HCD_MEMORY,
+
+ /*
+ * basic lifecycle operations
+ */
+ .reset = ohci_da8xx_init,
+ .start = ohci_da8xx_start,
+ .stop = ohci_da8xx_stop,
+ .shutdown = ohci_shutdown,
+
+ /*
+ * managing i/o requests and associated device resources
+ */
+ .urb_enqueue = ohci_urb_enqueue,
+ .urb_dequeue = ohci_urb_dequeue,
+ .endpoint_disable = ohci_endpoint_disable,
+
+ /*
+ * scheduling support
+ */
+ .get_frame_number = ohci_get_frame,
+
+ /*
+ * root hub support
+ */
+ .hub_status_data = ohci_da8xx_hub_status_data,
+ .hub_control = ohci_da8xx_hub_control,
+
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
+#endif
+ .start_port_reset = ohci_start_port_reset,
+};
+
+/*-------------------------------------------------------------------------*/
+
+
+/**
+ * usb_hcd_da8xx_probe - initialize DA8xx-based HCDs
+ * Context: !in_interrupt()
+ *
+ * Allocates basic resources for this USB host controller, and
+ * then invokes the start() method for the HCD associated with it
+ * through the hotplug entry's driver_data.
+ */
+static int usb_hcd_da8xx_probe(const struct hc_driver *driver,
+ struct platform_device *pdev)
+{
+ struct da8xx_ohci_root_hub *hub = pdev->dev.platform_data;
+ struct usb_hcd *hcd;
+ struct resource *mem;
+ int error, irq;
+
+ if (hub == NULL)
+ return -ENODEV;
+
+ usb11_clk = clk_get(&pdev->dev, "usb11");
+ if (IS_ERR(usb11_clk))
+ return PTR_ERR(usb11_clk);
+
+ usb20_clk = clk_get(&pdev->dev, "usb20");
+ if (IS_ERR(usb20_clk)) {
+ error = PTR_ERR(usb20_clk);
+ goto err0;
+ }
+
+ hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
+ if (!hcd) {
+ error = -ENOMEM;
+ goto err1;
+ }
+
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ error = -ENODEV;
+ goto err2;
+ }
+ hcd->rsrc_start = mem->start;
+ hcd->rsrc_len = mem->end - mem->start + 1;
+
+ if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+ dev_dbg(&pdev->dev, "request_mem_region failed\n");
+ error = -EBUSY;
+ goto err2;
+ }
+
+ hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+ if (!hcd->regs) {
+ dev_err(&pdev->dev, "ioremap failed\n");
+ error = -ENOMEM;
+ goto err3;
+ }
+
+ ohci_hcd_init(hcd_to_ohci(hcd));
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ error = -ENODEV;
+ goto err4;
+ }
+ error = usb_add_hcd(hcd, irq, IRQF_DISABLED);
+ if (error)
+ goto err4;
+
+ if (hub->ocic_notify) {
+ error = hub->ocic_notify(ohci_da8xx_ocic_handler);
+ if (!error)
+ return 0;
+ }
+
+ usb_remove_hcd(hcd);
+err4:
+ iounmap(hcd->regs);
+err3:
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err2:
+ usb_put_hcd(hcd);
+err1:
+ clk_put(usb20_clk);
+err0:
+ clk_put(usb11_clk);
+ return error;
+}
+
+/**
+ * usb_hcd_da8xx_remove - shutdown processing for DA8xx-based HCDs
+ * @dev: USB Host Controller being removed
+ * Context: !in_interrupt()
+ *
+ * Reverses the effect of usb_hcd_da8xx_probe(), first invoking
+ * the HCD's stop() method. It is always called from a thread
+ * context, normally "rmmod", "apmd", or something similar.
+ */
+static inline void
+usb_hcd_da8xx_remove(struct usb_hcd *hcd, struct platform_device *pdev)
+{
+ struct da8xx_ohci_root_hub *hub = pdev->dev.platform_data;
+
+ hub->ocic_notify(NULL);
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ usb_put_hcd(hcd);
+ clk_put(usb20_clk);
+ clk_put(usb11_clk);
+}
+
+static int ohci_hcd_da8xx_drv_probe(struct platform_device *dev)
+{
+ return usb_hcd_da8xx_probe(&ohci_da8xx_hc_driver, dev);
+}
+
+static int ohci_hcd_da8xx_drv_remove(struct platform_device *dev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(dev);
+
+ usb_hcd_da8xx_remove(hcd, dev);
+ platform_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int ohci_da8xx_suspend(struct platform_device *dev, pm_message_t message)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(dev);
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+ if (time_before(jiffies, ohci->next_statechange))
+ msleep(5);
+ ohci->next_statechange = jiffies;
+
+ ohci_da8xx_clock(0);
+ hcd->state = HC_STATE_SUSPENDED;
+ dev->dev.power.power_state = PMSG_SUSPEND;
+ return 0;
+}
+
+static int ohci_da8xx_resume(struct platform_device *dev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(dev);
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+ if (time_before(jiffies, ohci->next_statechange))
+ msleep(5);
+ ohci->next_statechange = jiffies;
+
+ ohci_da8xx_clock(1);
+ dev->dev.power.power_state = PMSG_ON;
+ usb_hcd_resume_root_hub(hcd);
+ return 0;
+}
+#endif
+
+/*
+ * Driver definition to register with platform structure.
+ */
+static struct platform_driver ohci_hcd_da8xx_driver = {
+ .probe = ohci_hcd_da8xx_drv_probe,
+ .remove = ohci_hcd_da8xx_drv_remove,
+ .shutdown = usb_hcd_platform_shutdown,
+#ifdef CONFIG_PM
+ .suspend = ohci_da8xx_suspend,
+ .resume = ohci_da8xx_resume,
+#endif
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "ohci",
+ },
+};
int i, len;
if (usb_pipecontrol (pipe)) {
- printk (KERN_DEBUG __FILE__ ": setup(8):");
+ printk (KERN_DEBUG "%s: setup(8):", __FILE__);
for (i = 0; i < 8 ; i++)
printk (" %02x", ((__u8 *) urb->setup_packet) [i]);
printk ("\n");
}
if (urb->transfer_buffer_length > 0 && urb->transfer_buffer) {
- printk (KERN_DEBUG __FILE__ ": data(%d/%d):",
+ printk (KERN_DEBUG "%s: data(%d/%d):", __FILE__,
urb->actual_length,
urb->transfer_buffer_length);
len = usb_pipeout (pipe)?
#define PLATFORM_DRIVER usb_hcd_pnx4008_driver
#endif
+#ifdef CONFIG_ARCH_DAVINCI_DA8XX
+#include "ohci-da8xx.c"
+#define PLATFORM_DRIVER ohci_hcd_da8xx_driver
+#endif
+
#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
defined(CONFIG_CPU_SUBTYPE_SH7721) || \
defined(CONFIG_CPU_SUBTYPE_SH7763) || \
static void lh7a404_start_hc(struct platform_device *dev)
{
- printk(KERN_DEBUG __FILE__
- ": starting LH7A404 OHCI USB Controller\n");
+ printk(KERN_DEBUG "%s: starting LH7A404 OHCI USB Controller\n",
+ __FILE__);
/*
* Now, carefully enable the USB clock, and take
udelay(1000);
USBH_CMDSTATUS = OHCI_HCR;
- printk(KERN_DEBUG __FILE__
- ": Clock to USB host has been enabled \n");
+ printk(KERN_DEBUG "%s: Clock to USB host has been enabled \n", __FILE__);
}
static void lh7a404_stop_hc(struct platform_device *dev)
{
- printk(KERN_DEBUG __FILE__
- ": stopping LH7A404 OHCI USB Controller\n");
+ printk(KERN_DEBUG "%s: stopping LH7A404 OHCI USB Controller\n",
+ __FILE__);
CSC_PWRCNT &= ~CSC_PWRCNT_USBH_EN; /* Disable clock */
}
}
i2c_adap = i2c_get_adapter(2);
memset(&i2c_info, 0, sizeof(struct i2c_board_info));
- strlcpy(i2c_info.name, "isp1301_pnx", I2C_NAME_SIZE);
+ strlcpy(i2c_info.type, "isp1301_pnx", I2C_NAME_SIZE);
isp1301_i2c_client = i2c_new_probed_device(i2c_adap, &i2c_info,
normal_i2c);
i2c_put_adapter(i2c_adap);
out2:
clk_put(usb_clk);
out1:
- i2c_unregister_client(isp1301_i2c_client);
+ i2c_unregister_device(isp1301_i2c_client);
isp1301_i2c_client = NULL;
out_i2c_driver:
i2c_del_driver(&isp1301_driver);
pnx4008_unset_usb_bits();
clk_disable(usb_clk);
clk_put(usb_clk);
- i2c_unregister_client(isp1301_i2c_client);
+ i2c_unregister_device(isp1301_i2c_client);
isp1301_i2c_client = NULL;
i2c_del_driver(&isp1301_driver);
hcd->rsrc_len = res.end - res.start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- printk(KERN_ERR __FILE__ ": request_mem_region failed\n");
+ printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__);
rv = -EBUSY;
goto err_rmr;
}
irq = irq_of_parse_and_map(dn, 0);
if (irq == NO_IRQ) {
- printk(KERN_ERR __FILE__ ": irq_of_parse_and_map failed\n");
+ printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__);
rv = -EBUSY;
goto err_irq;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
- printk(KERN_ERR __FILE__ ": ioremap failed\n");
+ printk(KERN_ERR "%s: ioremap failed\n", __FILE__);
rv = -ENOMEM;
goto err_ioremap;
}
} else
release_mem_region(res.start, 0x4);
} else
- pr_debug(__FILE__ ": cannot get ehci offset from fdt\n");
+ pr_debug("%s: cannot get ehci offset from fdt\n", __FILE__);
}
iounmap(hcd->regs);
}
-static struct of_device_id ohci_hcd_ppc_of_match[] = {
+static const struct of_device_id ohci_hcd_ppc_of_match[] = {
#ifdef CONFIG_USB_OHCI_HCD_PPC_OF_BE
{
.name = "usb",
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
- pr_debug(__FILE__ ": no irq\n");
+ pr_debug("%s: no irq\n", __FILE__);
return -ENODEV;
}
irq = res->start;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
- pr_debug(__FILE__ ": no reg addr\n");
+ pr_debug("%s: no reg addr\n", __FILE__);
return -ENODEV;
}
hcd->rsrc_len = res->end - res->start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- pr_debug(__FILE__ ": request_mem_region failed\n");
+ pr_debug("%s: request_mem_region failed\n", __FILE__);
retval = -EBUSY;
goto err1;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
- pr_debug(__FILE__ ": ioremap failed\n");
+ pr_debug("%s: ioremap failed\n", __FILE__);
retval = -ENOMEM;
goto err2;
}
{
unsigned int usb_rst = 0;
- printk(KERN_DEBUG __FILE__
- ": starting SA-1111 OHCI USB Controller\n");
+ printk(KERN_DEBUG "%s: starting SA-1111 OHCI USB Controller\n",
+ __FILE__);
#ifdef CONFIG_SA1100_BADGE4
if (machine_is_badge4()) {
static void sa1111_stop_hc(struct sa1111_dev *dev)
{
unsigned int usb_rst;
- printk(KERN_DEBUG __FILE__
- ": stopping SA-1111 OHCI USB Controller\n");
+ printk(KERN_DEBUG "%s: stopping SA-1111 OHCI USB Controller\n",
+ __FILE__);
/*
* Put the USB host controller into reset.
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/byteorder.h>
+#include <asm/unaligned.h>
#include "../core/hcd.h"
#include "sl811.h"
sl811h_hub_descriptor(sl811, (struct usb_hub_descriptor *) buf);
break;
case GetHubStatus:
- *(__le32 *) buf = cpu_to_le32(0);
+ put_unaligned_le32(0, buf);
break;
case GetPortStatus:
if (wIndex != 1)
goto error;
- *(__le32 *) buf = cpu_to_le32(sl811->port1);
+ put_unaligned_le32(sl811->port1, buf);
#ifndef VERBOSE
if (*(u16*)(buf+2)) /* only if wPortChange is interesting */
uhci_hc_died(uhci);
uhci_scan_schedule(uhci);
spin_unlock_irq(&uhci->lock);
+ synchronize_irq(hcd->irq);
del_timer_sync(&uhci->fsbr_timer);
release_uhci(uhci);
}
}
+char *xhci_get_slot_state(struct xhci_hcd *xhci,
+ struct xhci_container_ctx *ctx)
+{
+ struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx);
+
+ switch (GET_SLOT_STATE(slot_ctx->dev_state)) {
+ case 0:
+ return "enabled/disabled";
+ case 1:
+ return "default";
+ case 2:
+ return "addressed";
+ case 3:
+ return "configured";
+ default:
+ return "reserved";
+ }
+}
+
void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx)
{
/* Fields are 32 bits wide, DMA addresses are in bytes */
next = readl(base + ext_offset);
- if (ext_offset == XHCI_HCC_PARAMS_OFFSET)
+ if (ext_offset == XHCI_HCC_PARAMS_OFFSET) {
/* Find the first extended capability */
next = XHCI_HCC_EXT_CAPS(next);
- else
+ ext_offset = 0;
+ } else {
/* Find the next extended capability */
next = XHCI_EXT_CAPS_NEXT(next);
+ }
+
if (!next)
return 0;
/*
* for usb_set_interface() and usb_set_configuration() claim).
*/
if (xhci_endpoint_init(xhci, xhci->devs[udev->slot_id],
- udev, ep, GFP_KERNEL) < 0) {
+ udev, ep, GFP_NOIO) < 0) {
dev_dbg(&udev->dev, "%s - could not initialize ep %#x\n",
__func__, ep->desc.bEndpointAddress);
return -ENOMEM;
ret = xhci_queue_evaluate_context(xhci, in_ctx->dma,
udev->slot_id);
if (ret < 0) {
+ if (command)
+ list_del(&command->cmd_list);
spin_unlock_irqrestore(&xhci->lock, flags);
xhci_dbg(xhci, "FIXME allocate a new ring segment\n");
return -ENOMEM;
xhci_zero_in_ctx(xhci, virt_dev);
/* Install new rings and free or cache any old rings */
for (i = 1; i < 31; ++i) {
- int rings_cached;
-
if (!virt_dev->eps[i].new_ring)
continue;
/* Only cache or free the old ring if it exists.
* It may not if this is the first add of an endpoint.
*/
if (virt_dev->eps[i].ring) {
- rings_cached = virt_dev->num_rings_cached;
- if (rings_cached < XHCI_MAX_RINGS_CACHED) {
- virt_dev->num_rings_cached++;
- rings_cached = virt_dev->num_rings_cached;
- virt_dev->ring_cache[rings_cached] =
- virt_dev->eps[i].ring;
- xhci_dbg(xhci, "Cached old ring, "
- "%d ring%s cached\n",
- rings_cached,
- (rings_cached > 1) ? "s" : "");
- } else {
- xhci_ring_free(xhci, virt_dev->eps[i].ring);
- xhci_dbg(xhci, "Ring cache full (%d rings), "
- "freeing ring\n",
- virt_dev->num_rings_cached);
- }
+ xhci_free_or_cache_endpoint_ring(xhci, virt_dev, i);
}
virt_dev->eps[i].ring = virt_dev->eps[i].new_ring;
virt_dev->eps[i].new_ring = NULL;
xhci_warn(xhci, "FIXME allocate a new ring segment\n");
}
+/*
+ * This submits a Reset Device Command, which will set the device state to 0,
+ * set the device address to 0, and disable all the endpoints except the default
+ * control endpoint. The USB core should come back and call
+ * xhci_address_device(), and then re-set up the configuration. If this is
+ * called because of a usb_reset_and_verify_device(), then the old alternate
+ * settings will be re-installed through the normal bandwidth allocation
+ * functions.
+ *
+ * Wait for the Reset Device command to finish. Remove all structures
+ * associated with the endpoints that were disabled. Clear the input device
+ * structure? Cache the rings? Reset the control endpoint 0 max packet size?
+ */
+int xhci_reset_device(struct usb_hcd *hcd, struct usb_device *udev)
+{
+ int ret, i;
+ unsigned long flags;
+ struct xhci_hcd *xhci;
+ unsigned int slot_id;
+ struct xhci_virt_device *virt_dev;
+ struct xhci_command *reset_device_cmd;
+ int timeleft;
+ int last_freed_endpoint;
+
+ ret = xhci_check_args(hcd, udev, NULL, 0, __func__);
+ if (ret <= 0)
+ return ret;
+ xhci = hcd_to_xhci(hcd);
+ slot_id = udev->slot_id;
+ virt_dev = xhci->devs[slot_id];
+ if (!virt_dev) {
+ xhci_dbg(xhci, "%s called with invalid slot ID %u\n",
+ __func__, slot_id);
+ return -EINVAL;
+ }
+
+ xhci_dbg(xhci, "Resetting device with slot ID %u\n", slot_id);
+ /* Allocate the command structure that holds the struct completion.
+ * Assume we're in process context, since the normal device reset
+ * process has to wait for the device anyway. Storage devices are
+ * reset as part of error handling, so use GFP_NOIO instead of
+ * GFP_KERNEL.
+ */
+ reset_device_cmd = xhci_alloc_command(xhci, false, true, GFP_NOIO);
+ if (!reset_device_cmd) {
+ xhci_dbg(xhci, "Couldn't allocate command structure.\n");
+ return -ENOMEM;
+ }
+
+ /* Attempt to submit the Reset Device command to the command ring */
+ spin_lock_irqsave(&xhci->lock, flags);
+ reset_device_cmd->command_trb = xhci->cmd_ring->enqueue;
+ list_add_tail(&reset_device_cmd->cmd_list, &virt_dev->cmd_list);
+ ret = xhci_queue_reset_device(xhci, slot_id);
+ if (ret) {
+ xhci_dbg(xhci, "FIXME: allocate a command ring segment\n");
+ list_del(&reset_device_cmd->cmd_list);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ goto command_cleanup;
+ }
+ xhci_ring_cmd_db(xhci);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+
+ /* Wait for the Reset Device command to finish */
+ timeleft = wait_for_completion_interruptible_timeout(
+ reset_device_cmd->completion,
+ USB_CTRL_SET_TIMEOUT);
+ if (timeleft <= 0) {
+ xhci_warn(xhci, "%s while waiting for reset device command\n",
+ timeleft == 0 ? "Timeout" : "Signal");
+ spin_lock_irqsave(&xhci->lock, flags);
+ /* The timeout might have raced with the event ring handler, so
+ * only delete from the list if the item isn't poisoned.
+ */
+ if (reset_device_cmd->cmd_list.next != LIST_POISON1)
+ list_del(&reset_device_cmd->cmd_list);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ ret = -ETIME;
+ goto command_cleanup;
+ }
+
+ /* The Reset Device command can't fail, according to the 0.95/0.96 spec,
+ * unless we tried to reset a slot ID that wasn't enabled,
+ * or the device wasn't in the addressed or configured state.
+ */
+ ret = reset_device_cmd->status;
+ switch (ret) {
+ case COMP_EBADSLT: /* 0.95 completion code for bad slot ID */
+ case COMP_CTX_STATE: /* 0.96 completion code for same thing */
+ xhci_info(xhci, "Can't reset device (slot ID %u) in %s state\n",
+ slot_id,
+ xhci_get_slot_state(xhci, virt_dev->out_ctx));
+ xhci_info(xhci, "Not freeing device rings.\n");
+ /* Don't treat this as an error. May change my mind later. */
+ ret = 0;
+ goto command_cleanup;
+ case COMP_SUCCESS:
+ xhci_dbg(xhci, "Successful reset device command.\n");
+ break;
+ default:
+ if (xhci_is_vendor_info_code(xhci, ret))
+ break;
+ xhci_warn(xhci, "Unknown completion code %u for "
+ "reset device command.\n", ret);
+ ret = -EINVAL;
+ goto command_cleanup;
+ }
+
+ /* Everything but endpoint 0 is disabled, so free or cache the rings. */
+ last_freed_endpoint = 1;
+ for (i = 1; i < 31; ++i) {
+ if (!virt_dev->eps[i].ring)
+ continue;
+ xhci_free_or_cache_endpoint_ring(xhci, virt_dev, i);
+ last_freed_endpoint = i;
+ }
+ xhci_dbg(xhci, "Output context after successful reset device cmd:\n");
+ xhci_dbg_ctx(xhci, virt_dev->out_ctx, last_freed_endpoint);
+ ret = 0;
+
+command_cleanup:
+ xhci_free_command(xhci, reset_device_cmd);
+ return ret;
+}
+
/*
* At this point, the struct usb_device is about to go away, the device has
* disconnected, and all traffic has been stopped and the endpoints have been
xhci_warn(xhci, "Cannot update hub desc for unknown device.\n");
return -EINVAL;
}
- config_cmd = xhci_alloc_command(xhci, true, mem_flags);
+ config_cmd = xhci_alloc_command(xhci, true, true, mem_flags);
if (!config_cmd) {
xhci_dbg(xhci, "Could not allocate xHCI command structure.\n");
return -ENOMEM;
return (state & XHCI_PORT_RO) | (state & XHCI_PORT_RWS);
}
+static void xhci_disable_port(struct xhci_hcd *xhci, u16 wIndex,
+ u32 __iomem *addr, u32 port_status)
+{
+ /* Write 1 to disable the port */
+ xhci_writel(xhci, port_status | PORT_PE, addr);
+ port_status = xhci_readl(xhci, addr);
+ xhci_dbg(xhci, "disable port, actual port %d status = 0x%x\n",
+ wIndex, port_status);
+}
+
+static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue,
+ u16 wIndex, u32 __iomem *addr, u32 port_status)
+{
+ char *port_change_bit;
+ u32 status;
+
+ switch (wValue) {
+ case USB_PORT_FEAT_C_RESET:
+ status = PORT_RC;
+ port_change_bit = "reset";
+ break;
+ case USB_PORT_FEAT_C_CONNECTION:
+ status = PORT_CSC;
+ port_change_bit = "connect";
+ break;
+ case USB_PORT_FEAT_C_OVER_CURRENT:
+ status = PORT_OCC;
+ port_change_bit = "over-current";
+ break;
+ case USB_PORT_FEAT_C_ENABLE:
+ status = PORT_PEC;
+ port_change_bit = "enable/disable";
+ break;
+ default:
+ /* Should never happen */
+ return;
+ }
+ /* Change bits are all write 1 to clear */
+ xhci_writel(xhci, port_status | status, addr);
+ port_status = xhci_readl(xhci, addr);
+ xhci_dbg(xhci, "clear port %s change, actual port %d status = 0x%x\n",
+ port_change_bit, wIndex, port_status);
+}
+
int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
u16 wIndex, char *buf, u16 wLength)
{
u32 temp, status;
int retval = 0;
u32 __iomem *addr;
- char *port_change_bit;
ports = HCS_MAX_PORTS(xhci->hcs_params1);
temp = xhci_port_state_to_neutral(temp);
switch (wValue) {
case USB_PORT_FEAT_C_RESET:
- status = PORT_RC;
- port_change_bit = "reset";
- break;
case USB_PORT_FEAT_C_CONNECTION:
- status = PORT_CSC;
- port_change_bit = "connect";
- break;
case USB_PORT_FEAT_C_OVER_CURRENT:
- status = PORT_OCC;
- port_change_bit = "over-current";
+ case USB_PORT_FEAT_C_ENABLE:
+ xhci_clear_port_change_bit(xhci, wValue, wIndex,
+ addr, temp);
+ break;
+ case USB_PORT_FEAT_ENABLE:
+ xhci_disable_port(xhci, wIndex, addr, temp);
break;
default:
goto error;
}
- /* Change bits are all write 1 to clear */
- xhci_writel(xhci, temp | status, addr);
- temp = xhci_readl(xhci, addr);
- xhci_dbg(xhci, "clear port %s change, actual port %d status = 0x%x\n",
- port_change_bit, wIndex, temp);
- temp = xhci_readl(xhci, addr); /* unblock any posted writes */
break;
default:
error:
return 0;
}
+void xhci_free_or_cache_endpoint_ring(struct xhci_hcd *xhci,
+ struct xhci_virt_device *virt_dev,
+ unsigned int ep_index)
+{
+ int rings_cached;
+
+ rings_cached = virt_dev->num_rings_cached;
+ if (rings_cached < XHCI_MAX_RINGS_CACHED) {
+ virt_dev->num_rings_cached++;
+ rings_cached = virt_dev->num_rings_cached;
+ virt_dev->ring_cache[rings_cached] =
+ virt_dev->eps[ep_index].ring;
+ xhci_dbg(xhci, "Cached old ring, "
+ "%d ring%s cached\n",
+ rings_cached,
+ (rings_cached > 1) ? "s" : "");
+ } else {
+ xhci_ring_free(xhci, virt_dev->eps[ep_index].ring);
+ xhci_dbg(xhci, "Ring cache full (%d rings), "
+ "freeing ring\n",
+ virt_dev->num_rings_cached);
+ }
+ virt_dev->eps[ep_index].ring = NULL;
+}
+
/* Zero an endpoint ring (except for link TRBs) and move the enqueue and dequeue
* pointers to the beginning of the ring.
*/
void xhci_free_container_ctx(struct xhci_hcd *xhci,
struct xhci_container_ctx *ctx)
{
+ if (!ctx)
+ return;
dma_pool_free(xhci->device_pool, ctx->bytes, ctx->dma);
kfree(ctx);
}
case USB_SPEED_LOW:
slot_ctx->dev_info |= (u32) SLOT_SPEED_LS;
break;
- case USB_SPEED_VARIABLE:
+ case USB_SPEED_WIRELESS:
xhci_dbg(xhci, "FIXME xHCI doesn't support wireless speeds\n");
return -EINVAL;
break;
case USB_SPEED_LOW:
ep0_ctx->ep_info2 |= MAX_PACKET(8);
break;
- case USB_SPEED_VARIABLE:
+ case USB_SPEED_WIRELESS:
xhci_dbg(xhci, "FIXME xHCI doesn't support wireless speeds\n");
return -EINVAL;
break;
}
struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci,
- bool allocate_completion, gfp_t mem_flags)
+ bool allocate_in_ctx, bool allocate_completion,
+ gfp_t mem_flags)
{
struct xhci_command *command;
if (!command)
return NULL;
- command->in_ctx =
- xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_INPUT, mem_flags);
- if (!command->in_ctx) {
- kfree(command);
- return NULL;
+ if (allocate_in_ctx) {
+ command->in_ctx =
+ xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_INPUT,
+ mem_flags);
+ if (!command->in_ctx) {
+ kfree(command);
+ return NULL;
+ }
}
if (allocate_completion) {
.reset_bandwidth = xhci_reset_bandwidth,
.address_device = xhci_address_device,
.update_hub_device = xhci_update_hub_device,
+ .reset_device = xhci_reset_device,
/*
* scheduling support
case TRB_TYPE(TRB_RESET_EP):
handle_reset_ep_completion(xhci, event, xhci->cmd_ring->dequeue);
break;
+ case TRB_TYPE(TRB_RESET_DEV):
+ xhci_dbg(xhci, "Completed reset device command.\n");
+ slot_id = TRB_TO_SLOT_ID(
+ xhci->cmd_ring->dequeue->generic.field[3]);
+ virt_dev = xhci->devs[slot_id];
+ if (virt_dev)
+ handle_cmd_in_cmd_wait_list(xhci, virt_dev, event);
+ else
+ xhci_warn(xhci, "Reset device command completion "
+ "for disabled slot %u\n", slot_id);
+ break;
default:
/* Skip over unknown commands on the event ring */
xhci->error_bitmask |= 1 << 6;
return 0;
}
+int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code)
+{
+ if (trb_comp_code >= 224 && trb_comp_code <= 255) {
+ /* Vendor defined "informational" completion code,
+ * treat as not-an-error.
+ */
+ xhci_dbg(xhci, "Vendor defined info completion code %u\n",
+ trb_comp_code);
+ xhci_dbg(xhci, "Treating code as success.\n");
+ return 1;
+ }
+ return 0;
+}
+
/*
* If this function returns an error condition, it means it got a Transfer
* event with a corrupted Slot ID, Endpoint ID, or TRB DMA address.
status = -ENOSR;
break;
default:
- if (trb_comp_code >= 224 && trb_comp_code <= 255) {
- /* Vendor defined "informational" completion code,
- * treat as not-an-error.
- */
- xhci_dbg(xhci, "Vendor defined info completion code %u\n",
- trb_comp_code);
- xhci_dbg(xhci, "Treating code as success.\n");
+ if (xhci_is_vendor_info_code(xhci, trb_comp_code)) {
status = 0;
break;
}
false);
}
+/* Queue a reset device command TRB */
+int xhci_queue_reset_device(struct xhci_hcd *xhci, u32 slot_id)
+{
+ return queue_command(xhci, 0, 0, 0,
+ TRB_TYPE(TRB_RESET_DEV) | SLOT_ID_FOR_TRB(slot_id),
+ false);
+}
+
/* Queue a configure endpoint command TRB */
int xhci_queue_configure_endpoint(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
u32 slot_id, bool command_must_succeed)
void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci);
void xhci_dbg_ring_ptrs(struct xhci_hcd *xhci, struct xhci_ring *ring);
void xhci_dbg_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int last_ep);
+char *xhci_get_slot_state(struct xhci_hcd *xhci,
+ struct xhci_container_ctx *ctx);
/* xHCI memory management */
void xhci_mem_cleanup(struct xhci_hcd *xhci);
struct usb_device *udev, struct usb_host_endpoint *ep,
gfp_t mem_flags);
void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring);
+void xhci_free_or_cache_endpoint_ring(struct xhci_hcd *xhci,
+ struct xhci_virt_device *virt_dev,
+ unsigned int ep_index);
struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci,
- bool allocate_completion, gfp_t mem_flags);
+ bool allocate_in_ctx, bool allocate_completion,
+ gfp_t mem_flags);
void xhci_free_command(struct xhci_hcd *xhci,
struct xhci_command *command);
int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep);
int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep);
void xhci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep);
+int xhci_reset_device(struct usb_hcd *hcd, struct usb_device *udev);
int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);
void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);
struct xhci_segment *trb_in_td(struct xhci_segment *start_seg,
union xhci_trb *start_trb, union xhci_trb *end_trb,
dma_addr_t suspect_dma);
+int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code);
void xhci_ring_cmd_db(struct xhci_hcd *xhci);
void *xhci_setup_one_noop(struct xhci_hcd *xhci);
void xhci_handle_event(struct xhci_hcd *xhci);
u32 slot_id);
int xhci_queue_reset_ep(struct xhci_hcd *xhci, int slot_id,
unsigned int ep_index);
+int xhci_queue_reset_device(struct xhci_hcd *xhci, u32 slot_id);
void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
unsigned int slot_id, unsigned int ep_index,
struct xhci_td *cur_td, struct xhci_dequeue_state *state);
-static struct usb_device_id mdc800_table [] = {
+static const struct usb_device_id mdc800_table[] = {
{ USB_DEVICE(MDC800_VENDOR_ID, MDC800_PRODUCT_ID) },
{ } /* Terminating entry */
};
const struct usb_device_id *id);
static void mts_usb_disconnect(struct usb_interface *intf);
-static struct usb_device_id mts_usb_ids [];
+static const struct usb_device_id mts_usb_ids[];
static struct usb_driver mts_usb_driver = {
.name = "microtekX6",
/* The entries of microtek_table must correspond, line-by-line to
the entries of mts_supported_products[]. */
-static struct usb_device_id mts_usb_ids [] =
+static const struct usb_device_id mts_usb_ids[] =
{
{ USB_DEVICE(0x4ce, 0x0300) },
{ USB_DEVICE(0x5da, 0x0094) },
To compile this driver as a module, choose M here: the
module will be called usblcd.
-config USB_BERRY_CHARGE
- tristate "USB BlackBerry recharge support"
- depends on USB
- help
- Say Y here if you want to connect a BlackBerry device to your
- computer's USB port and have it automatically switch to "recharge"
- mode.
-
- To compile this driver as a module, choose M here: the
- module will be called berry_charge.
-
config USB_LED
tristate "USB LED driver support"
depends on USB
driver beforehand. Tools for doing so are available at
http://bersace03.free.fr
-config USB_VST
- tristate "USB VST driver"
- depends on USB
- help
- This driver is intended for Vernier Software Technologies
- bulk usb devices such as their Ocean-Optics spectrometers or
- Labquest.
- It is a bulk channel driver with configurable read and write
- timeouts.
-
- To compile this driver as a module, choose M here: the
- module will be called vstusb.
-
-
obj-$(CONFIG_USB_ADUTUX) += adutux.o
obj-$(CONFIG_USB_APPLEDISPLAY) += appledisplay.o
-obj-$(CONFIG_USB_BERRY_CHARGE) += berry_charge.o
obj-$(CONFIG_USB_CYPRESS_CY7C63)+= cypress_cy7c63.o
obj-$(CONFIG_USB_CYTHERM) += cytherm.o
obj-$(CONFIG_USB_EMI26) += emi26.o
obj-$(CONFIG_USB_TRANCEVIBRATOR) += trancevibrator.o
obj-$(CONFIG_USB_USS720) += uss720.o
obj-$(CONFIG_USB_SEVSEG) += usbsevseg.o
-obj-$(CONFIG_USB_VST) += vstusb.o
obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga/
#define dbg(lvl, format, arg...) \
do { \
if (debug >= lvl) \
- printk(KERN_DEBUG __FILE__ " : " format " \n", ## arg); \
+ printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \
} while (0)
#define ADU_PRODUCT_ID 0x0064
/* table of devices that work with this driver */
-static struct usb_device_id device_table [] = {
+static const struct usb_device_id device_table[] = {
{ USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID) }, /* ADU100 */
{ USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+20) }, /* ADU120 */
{ USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+30) }, /* ADU130 */
if (debug < level)
return;
- printk(KERN_DEBUG __FILE__": %s - length = %d, data = ",
- function, size);
+ printk(KERN_DEBUG "%s: %s - length = %d, data = ",
+ __FILE__, function, size);
for (i = 0; i < size; ++i)
printk("%.2x ", data[i]);
printk("\n");
.bInterfaceProtocol = 0x00
/* table of devices that work with this driver */
-static struct usb_device_id appledisplay_table [] = {
+static const struct usb_device_id appledisplay_table[] = {
{ APPLEDISPLAY_DEVICE(0x9218) },
{ APPLEDISPLAY_DEVICE(0x9219) },
{ APPLEDISPLAY_DEVICE(0x921c) },
return pdata->msgdata[1];
}
-static struct backlight_ops appledisplay_bl_data = {
+static const struct backlight_ops appledisplay_bl_data = {
.get_brightness = appledisplay_bl_get_brightness,
.update_status = appledisplay_bl_update_status,
};
&appledisplay_bl_data);
if (IS_ERR(pdata->bd)) {
dev_err(&iface->dev, "Backlight registration failed\n");
+ retval = PTR_ERR(pdata->bd);
goto error;
}
+++ /dev/null
-/*
- * USB BlackBerry charging module
- *
- * Copyright (C) 2007 Greg Kroah-Hartman <gregkh@suse.de>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2.
- *
- * Information on how to switch configs was taken by the bcharge.cc file
- * created by the barry.sf.net project.
- *
- * bcharge.cc has the following copyright:
- * Copyright (C) 2006, Net Direct Inc. (http://www.netdirect.ca/)
- * and is released under the GPLv2.
- *
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/usb.h>
-
-#define RIM_VENDOR 0x0fca
-#define BLACKBERRY 0x0001
-#define BLACKBERRY_PEARL_DUAL 0x0004
-#define BLACKBERRY_PEARL 0x0006
-
-static int debug;
-static int pearl_dual_mode = 1;
-
-#ifdef dbg
-#undef dbg
-#endif
-#define dbg(dev, format, arg...) \
- if (debug) \
- dev_printk(KERN_DEBUG , dev , format , ## arg)
-
-static struct usb_device_id id_table [] = {
- { USB_DEVICE(RIM_VENDOR, BLACKBERRY) },
- { USB_DEVICE(RIM_VENDOR, BLACKBERRY_PEARL) },
- { USB_DEVICE(RIM_VENDOR, BLACKBERRY_PEARL_DUAL) },
- { }, /* Terminating entry */
-};
-MODULE_DEVICE_TABLE(usb, id_table);
-
-static int magic_charge(struct usb_device *udev)
-{
- char *dummy_buffer = kzalloc(2, GFP_KERNEL);
- int retval;
-
- if (!dummy_buffer)
- return -ENOMEM;
-
- /* send two magic commands and then set the configuration. The device
- * will then reset itself with the new power usage and should start
- * charging. */
-
- /* Note, with testing, it only seems that the first message is really
- * needed (at least for the 8700c), but to be safe, we emulate what
- * other operating systems seem to be sending to their device. We
- * really need to get some specs for this device to be sure about what
- * is going on here.
- */
- dbg(&udev->dev, "Sending first magic command\n");
- retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0xa5, 0xc0, 0, 1, dummy_buffer, 2, 100);
- if (retval != 2) {
- dev_err(&udev->dev, "First magic command failed: %d.\n",
- retval);
- goto exit;
- }
-
- dbg(&udev->dev, "Sending second magic command\n");
- retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0xa2, 0x40, 0, 1, dummy_buffer, 0, 100);
- if (retval != 0) {
- dev_err(&udev->dev, "Second magic command failed: %d.\n",
- retval);
- goto exit;
- }
-
- dbg(&udev->dev, "Calling set_configuration\n");
- retval = usb_driver_set_configuration(udev, 1);
- if (retval)
- dev_err(&udev->dev, "Set Configuration failed :%d.\n", retval);
-
-exit:
- kfree(dummy_buffer);
- return retval;
-}
-
-static int magic_dual_mode(struct usb_device *udev)
-{
- char *dummy_buffer = kzalloc(2, GFP_KERNEL);
- int retval;
-
- if (!dummy_buffer)
- return -ENOMEM;
-
- /* send magic command so that the Blackberry Pearl device exposes
- * two interfaces: both the USB mass-storage one and one which can
- * be used for database access. */
- dbg(&udev->dev, "Sending magic pearl command\n");
- retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0xa9, 0xc0, 1, 1, dummy_buffer, 2, 100);
- dbg(&udev->dev, "Magic pearl command returned %d\n", retval);
-
- dbg(&udev->dev, "Calling set_configuration\n");
- retval = usb_driver_set_configuration(udev, 1);
- if (retval)
- dev_err(&udev->dev, "Set Configuration failed :%d.\n", retval);
-
- kfree(dummy_buffer);
- return retval;
-}
-
-static int berry_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
-{
- struct usb_device *udev = interface_to_usbdev(intf);
-
- if (udev->bus_mA < 500) {
- dbg(&udev->dev, "Not enough power to charge available\n");
- return -ENODEV;
- }
-
- dbg(&udev->dev, "Power is set to %dmA\n",
- udev->actconfig->desc.bMaxPower * 2);
-
- /* check the power usage so we don't try to enable something that is
- * already enabled */
- if ((udev->actconfig->desc.bMaxPower * 2) == 500) {
- dbg(&udev->dev, "device is already charging, power is "
- "set to %dmA\n", udev->actconfig->desc.bMaxPower * 2);
- return -ENODEV;
- }
-
- /* turn the power on */
- magic_charge(udev);
-
- if ((le16_to_cpu(udev->descriptor.idProduct) == BLACKBERRY_PEARL) &&
- (pearl_dual_mode))
- magic_dual_mode(udev);
-
- /* we don't really want to bind to the device, userspace programs can
- * handle the syncing just fine, so get outta here. */
- return -ENODEV;
-}
-
-static void berry_disconnect(struct usb_interface *intf)
-{
-}
-
-static struct usb_driver berry_driver = {
- .name = "berry_charge",
- .probe = berry_probe,
- .disconnect = berry_disconnect,
- .id_table = id_table,
-};
-
-static int __init berry_init(void)
-{
- return usb_register(&berry_driver);
-}
-
-static void __exit berry_exit(void)
-{
- usb_deregister(&berry_driver);
-}
-
-module_init(berry_init);
-module_exit(berry_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@suse.de>");
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
-module_param(pearl_dual_mode, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(pearl_dual_mode, "Change Blackberry Pearl to run in dual mode");
/* table of devices that work with this driver */
-static struct usb_device_id cypress_table [] = {
+static const struct usb_device_id cypress_table[] = {
{ USB_DEVICE(CYPRESS_VENDOR_ID, CYPRESS_PRODUCT_ID) },
{ }
};
#define USB_SKEL_VENDOR_ID 0x04b4
#define USB_SKEL_PRODUCT_ID 0x0002
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(USB_SKEL_VENDOR_ID, USB_SKEL_PRODUCT_ID) },
{ }
};
return err;
}
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(EMI26_VENDOR_ID, EMI26_PRODUCT_ID) },
{ USB_DEVICE(EMI26_VENDOR_ID, EMI26B_PRODUCT_ID) },
{ } /* Terminating entry */
return err;
}
-static __devinitdata struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] __devinitconst = {
{ USB_DEVICE(EMI62_VENDOR_ID, EMI62_PRODUCT_ID) },
{ } /* Terminating entry */
};
#define USB_FTDI_ELAN_VENDOR_ID 0x0403
#define USB_FTDI_ELAN_PRODUCT_ID 0xd6ea
/* table of devices that work with this driver*/
-static struct usb_device_id ftdi_elan_table[] = {
+static const struct usb_device_id ftdi_elan_table[] = {
{USB_DEVICE(USB_FTDI_ELAN_VENDOR_ID, USB_FTDI_ELAN_PRODUCT_ID)},
{ /* Terminating entry */ }
};
*/
static int ftdi_elan_open(struct inode *inode, struct file *file)
{
- int subminor = iminor(inode);
- struct usb_interface *interface = usb_find_interface(&ftdi_elan_driver,
- subminor);
+ int subminor;
+ struct usb_interface *interface;
+
+ subminor = iminor(inode);
+ interface = usb_find_interface(&ftdi_elan_driver, subminor);
+
if (!interface) {
printk(KERN_ERR "can't find device for minor %d\n", subminor);
return -ENODEV;
#define ID_CHERRY 0x0010
/* device ID table */
-static struct usb_device_id idmouse_table[] = {
+static const struct usb_device_id idmouse_table[] = {
{USB_DEVICE(ID_SIEMENS, ID_IDMOUSE)}, /* Siemens ID Mouse (Professional) */
{USB_DEVICE(ID_SIEMENS, ID_CHERRY )}, /* Cherry FingerTIP ID Board */
{} /* terminating null entry */
/* driver registration */
/*---------------------*/
/* table of devices that work with this driver */
-static struct usb_device_id iowarrior_ids[] = {
+static const struct usb_device_id iowarrior_ids[] = {
{USB_DEVICE(USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40)},
{USB_DEVICE(USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24)},
{USB_DEVICE(USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOWPV1)},
dbg("%s", __func__);
+ lock_kernel();
subminor = iminor(inode);
interface = usb_find_interface(&iowarrior_driver, subminor);
if (!interface) {
+ unlock_kernel();
err("%s - error, can't find device for minor %d", __func__,
subminor);
return -ENODEV;
dev = usb_get_intfdata(interface);
if (!dev) {
mutex_unlock(&iowarrior_open_disc_lock);
+ unlock_kernel();
return -ENODEV;
}
out:
mutex_unlock(&dev->mutex);
+ unlock_kernel();
return retval;
}
#include <linux/errno.h>
#include <linux/module.h>
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
{USB_DEVICE(0x05ac, 0x8300)},
{},
};
return ret;
}
+MODULE_FIRMWARE("isight.fw");
+
static void isight_firmware_disconnect(struct usb_interface *intf)
{
}
#endif
/* table of devices that work with this driver */
-static struct usb_device_id ld_usb_table [] = {
+static const struct usb_device_id ld_usb_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
{ USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
{ USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
/* register this driver with the USB subsystem */
retval = usb_register(&ld_usb_driver);
if (retval)
- err("usb_register failed for the "__FILE__" driver. Error number %d\n", retval);
+ err("usb_register failed for the %s driver. Error number %d\n", __FILE__, retval);
return retval;
}
/* Use our own dbg macro */
#undef dbg
-#define dbg(lvl, format, arg...) do { if (debug >= lvl) printk(KERN_DEBUG __FILE__ ": " format "\n", ## arg); } while (0)
-
+#define dbg(lvl, format, arg...) \
+do { \
+ if (debug >= lvl) \
+ printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \
+} while (0)
/* Version Information */
#define DRIVER_VERSION "v0.96"
/* table of devices that work with this driver */
-static struct usb_device_id tower_table [] = {
+static const struct usb_device_id tower_table[] = {
{ USB_DEVICE(LEGO_USB_TOWER_VENDOR_ID, LEGO_USB_TOWER_PRODUCT_ID) },
{ } /* Terminating entry */
};
if (debug < level)
return;
- printk (KERN_DEBUG __FILE__": %s - length = %d, data = ", function, size);
+ printk (KERN_DEBUG "%s: %s - length = %d, data = ", __FILE__, function, size);
for (i = 0; i < size; ++i) {
printk ("%.2x ", data[i]);
}
/* register this driver with the USB subsystem */
result = usb_register(&tower_driver);
if (result < 0) {
- err("usb_register failed for the "__FILE__" driver. Error number %d", result);
+ err("usb_register failed for the %s driver. Error number %d", __FILE__, result);
retval = -1;
goto exit;
}
{
struct rio_usb_data *rio = &rio_instance;
+ /* against disconnect() */
+ lock_kernel();
mutex_lock(&(rio->lock));
if (rio->isopen || !rio->present) {
mutex_unlock(&(rio->lock));
+ unlock_kernel();
return -EBUSY;
}
rio->isopen = 1;
mutex_unlock(&(rio->lock));
dev_info(&rio->rio_dev->dev, "Rio opened.\n");
+ unlock_kernel();
return 0;
}
int retries;
int retval=0;
- lock_kernel();
mutex_lock(&(rio->lock));
/* Sanity check to make sure rio is connected, powered, etc */
if (rio->present == 0 || rio->rio_dev == NULL) {
err_out:
mutex_unlock(&(rio->lock));
- unlock_kernel();
return retval;
}
struct rio_usb_data *rio = usb_get_intfdata (intf);
usb_set_intfdata (intf, NULL);
+ lock_kernel();
if (rio) {
usb_deregister_dev(intf, &usb_rio_class);
/* better let it finish - the release will do whats needed */
rio->rio_dev = NULL;
mutex_unlock(&(rio->lock));
+ unlock_kernel();
return;
}
kfree(rio->ibuf);
rio->present = 0;
mutex_unlock(&(rio->lock));
}
+ unlock_kernel();
}
-static struct usb_device_id rio_table [] = {
+static const struct usb_device_id rio_table[] = {
{ USB_DEVICE(0x0841, 1) }, /* Rio 500 */
{ } /* Terminating entry */
};
sisusb->urbstatus[index] |= SU_URB_BUSY;
/* Submit URB */
- retval = usb_submit_urb(urb, GFP_ATOMIC);
+ retval = usb_submit_urb(urb, GFP_KERNEL);
/* If OK, and if timeout > 0, wait for completion */
if ((retval == 0) && timeout) {
urb->actual_length = 0;
sisusb->completein = 0;
- retval = usb_submit_urb(urb, GFP_ATOMIC);
+ retval = usb_submit_urb(urb, GFP_KERNEL);
if (retval == 0) {
wait_event_timeout(sisusb->wait_q, sisusb->completein, timeout);
if (!sisusb->completein) {
struct usb_interface *interface;
int subminor = iminor(inode);
- if (!(interface = usb_find_interface(&sisusb_driver, subminor)))
+ lock_kernel();
+ if (!(interface = usb_find_interface(&sisusb_driver, subminor))) {
+ unlock_kernel();
return -ENODEV;
+ }
- if (!(sisusb = usb_get_intfdata(interface)))
+ if (!(sisusb = usb_get_intfdata(interface))) {
+ unlock_kernel();
return -ENODEV;
+ }
mutex_lock(&sisusb->lock);
if (!sisusb->present || !sisusb->ready) {
mutex_unlock(&sisusb->lock);
+ unlock_kernel();
return -ENODEV;
}
if (sisusb->isopen) {
mutex_unlock(&sisusb->lock);
+ unlock_kernel();
return -EBUSY;
}
if (sisusb_init_gfxdevice(sisusb, 0)) {
mutex_unlock(&sisusb->lock);
dev_err(&sisusb->sisusb_dev->dev, "Failed to initialize device\n");
+ unlock_kernel();
return -EIO;
}
} else {
mutex_unlock(&sisusb->lock);
dev_err(&sisusb->sisusb_dev->dev, "Device not attached to USB 2.0 hub\n");
+ unlock_kernel();
return -EIO;
}
}
file->private_data = sisusb;
mutex_unlock(&sisusb->lock);
+ unlock_kernel();
return 0;
}
kref_put(&sisusb->kref, sisusb_delete);
}
-static struct usb_device_id sisusb_table [] = {
+static const struct usb_device_id sisusb_table[] = {
{ USB_DEVICE(0x0711, 0x0550) },
{ USB_DEVICE(0x0711, 0x0900) },
{ USB_DEVICE(0x0711, 0x0901) },
#define TRANCEVIBRATOR_VENDOR_ID 0x0b49 /* ASCII Corporation */
#define TRANCEVIBRATOR_PRODUCT_ID 0x064f /* Trance Vibrator */
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(TRANCEVIBRATOR_VENDOR_ID, TRANCEVIBRATOR_PRODUCT_ID) },
{ },
};
#define IOCTL_GET_DRV_VERSION 2
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ .idVendor = 0x10D2, .match_flags = USB_DEVICE_ID_MATCH_VENDOR, },
{ },
};
struct usb_interface *interface;
int subminor, r;
+ lock_kernel();
subminor = iminor(inode);
interface = usb_find_interface(&lcd_driver, subminor);
if (!interface) {
+ unlock_kernel();
err ("USBLCD: %s - error, can't find device for minor %d",
__func__, subminor);
return -ENODEV;
dev = usb_get_intfdata(interface);
if (!dev) {
mutex_unlock(&open_disc_mutex);
+ unlock_kernel();
return -ENODEV;
}
r = usb_autopm_get_interface(interface);
if (r < 0) {
kref_put(&dev->kref, lcd_delete);
+ unlock_kernel();
return r;
}
/* save our object in the file's private structure */
file->private_data = dev;
+ unlock_kernel();
return 0;
}
#define PRODUCT_ID 0x1223
/* table of devices that work with this driver */
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(VENDOR_ID, PRODUCT_ID) },
{ },
};
#define MAXLEN 6
/* table of devices that work with this driver */
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(VENDOR_ID, PRODUCT_ID) },
{ },
};
return -ERESTARTSYS;
/* FIXME: What if a system sleep starts while a test is running? */
- if (!intf->is_active) {
- mutex_unlock(&dev->lock);
- return -EHOSTUNREACH;
- }
/* some devices, like ez-usb default devices, need a non-default
* altsetting to have any active endpoints. some tests change
#endif
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
/*-------------------------------------------------------------*/
}
/* table of cables that work through this driver */
-static struct usb_device_id uss720_table [] = {
+static const struct usb_device_id uss720_table[] = {
{ USB_DEVICE(0x047e, 0x1001) },
{ USB_DEVICE(0x0557, 0x2001) },
{ USB_DEVICE(0x0729, 0x1284) },
+++ /dev/null
-/*****************************************************************************
- * File: drivers/usb/misc/vstusb.c
- *
- * Purpose: Support for the bulk USB Vernier Spectrophotometers
- *
- * Author: Johnnie Peters
- * Axian Consulting
- * Beaverton, OR, USA 97005
- *
- * Modified by: EQware Engineering, Inc.
- * Oregon City, OR, USA 97045
- *
- * Copyright: 2007, 2008
- * Vernier Software & Technology
- * Beaverton, OR, USA 97005
- *
- * Web: www.vernier.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *****************************************************************************/
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/uaccess.h>
-#include <linux/usb.h>
-
-#include <linux/usb/vstusb.h>
-
-#define DRIVER_VERSION "VST USB Driver Version 1.5"
-#define DRIVER_DESC "Vernier Software Technology Bulk USB Driver"
-
-#ifdef CONFIG_USB_DYNAMIC_MINORS
- #define VSTUSB_MINOR_BASE 0
-#else
- #define VSTUSB_MINOR_BASE 199
-#endif
-
-#define USB_VENDOR_OCEANOPTICS 0x2457
-#define USB_VENDOR_VERNIER 0x08F7 /* Vernier Software & Technology */
-
-#define USB_PRODUCT_USB2000 0x1002
-#define USB_PRODUCT_ADC1000_FW 0x1003 /* firmware download (renumerates) */
-#define USB_PRODUCT_ADC1000 0x1004
-#define USB_PRODUCT_HR2000_FW 0x1009 /* firmware download (renumerates) */
-#define USB_PRODUCT_HR2000 0x100A
-#define USB_PRODUCT_HR4000_FW 0x1011 /* firmware download (renumerates) */
-#define USB_PRODUCT_HR4000 0x1012
-#define USB_PRODUCT_USB650 0x1014 /* "Red Tide" */
-#define USB_PRODUCT_QE65000 0x1018
-#define USB_PRODUCT_USB4000 0x1022
-#define USB_PRODUCT_USB325 0x1024 /* "Vernier Spectrometer" */
-
-#define USB_PRODUCT_LABPRO 0x0001
-#define USB_PRODUCT_LABQUEST 0x0005
-
-#define VST_MAXBUFFER (64*1024)
-
-static struct usb_device_id id_table[] = {
- { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_USB2000)},
- { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_HR4000)},
- { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_USB650)},
- { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_USB4000)},
- { USB_DEVICE(USB_VENDOR_OCEANOPTICS, USB_PRODUCT_USB325)},
- { USB_DEVICE(USB_VENDOR_VERNIER, USB_PRODUCT_LABQUEST)},
- { USB_DEVICE(USB_VENDOR_VERNIER, USB_PRODUCT_LABPRO)},
- {},
-};
-
-MODULE_DEVICE_TABLE(usb, id_table);
-
-struct vstusb_device {
- struct kref kref;
- struct mutex lock;
- struct usb_device *usb_dev;
- char present;
- char isopen;
- struct usb_anchor submitted;
- int rd_pipe;
- int rd_timeout_ms;
- int wr_pipe;
- int wr_timeout_ms;
-};
-#define to_vst_dev(d) container_of(d, struct vstusb_device, kref)
-
-static struct usb_driver vstusb_driver;
-
-static void vstusb_delete(struct kref *kref)
-{
- struct vstusb_device *vstdev = to_vst_dev(kref);
-
- usb_put_dev(vstdev->usb_dev);
- kfree(vstdev);
-}
-
-static int vstusb_open(struct inode *inode, struct file *file)
-{
- struct vstusb_device *vstdev;
- struct usb_interface *interface;
-
- interface = usb_find_interface(&vstusb_driver, iminor(inode));
-
- if (!interface) {
- printk(KERN_ERR KBUILD_MODNAME
- ": %s - error, can't find device for minor %d\n",
- __func__, iminor(inode));
- return -ENODEV;
- }
-
- vstdev = usb_get_intfdata(interface);
-
- if (!vstdev)
- return -ENODEV;
-
- /* lock this device */
- mutex_lock(&vstdev->lock);
-
- /* can only open one time */
- if ((!vstdev->present) || (vstdev->isopen)) {
- mutex_unlock(&vstdev->lock);
- return -EBUSY;
- }
-
- /* increment our usage count */
- kref_get(&vstdev->kref);
-
- vstdev->isopen = 1;
-
- /* save device in the file's private structure */
- file->private_data = vstdev;
-
- dev_dbg(&vstdev->usb_dev->dev, "%s: opened\n", __func__);
-
- mutex_unlock(&vstdev->lock);
-
- return 0;
-}
-
-static int vstusb_release(struct inode *inode, struct file *file)
-{
- struct vstusb_device *vstdev;
-
- vstdev = file->private_data;
-
- if (vstdev == NULL)
- return -ENODEV;
-
- mutex_lock(&vstdev->lock);
-
- vstdev->isopen = 0;
-
- dev_dbg(&vstdev->usb_dev->dev, "%s: released\n", __func__);
-
- mutex_unlock(&vstdev->lock);
-
- kref_put(&vstdev->kref, vstusb_delete);
-
- return 0;
-}
-
-static void usb_api_blocking_completion(struct urb *urb)
-{
- struct completion *completeit = urb->context;
-
- complete(completeit);
-}
-
-static int vstusb_fill_and_send_urb(struct urb *urb,
- struct usb_device *usb_dev,
- unsigned int pipe, void *data,
- unsigned int len, struct completion *done)
-{
- struct usb_host_endpoint *ep;
- struct usb_host_endpoint **hostep;
- unsigned int pipend;
-
- int status;
-
- hostep = usb_pipein(pipe) ? usb_dev->ep_in : usb_dev->ep_out;
- pipend = usb_pipeendpoint(pipe);
- ep = hostep[pipend];
-
- if (!ep || (len == 0))
- return -EINVAL;
-
- if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
- == USB_ENDPOINT_XFER_INT) {
- pipe = (pipe & ~(3 << 30)) | (PIPE_INTERRUPT << 30);
- usb_fill_int_urb(urb, usb_dev, pipe, data, len,
- (usb_complete_t)usb_api_blocking_completion,
- NULL, ep->desc.bInterval);
- } else
- usb_fill_bulk_urb(urb, usb_dev, pipe, data, len,
- (usb_complete_t)usb_api_blocking_completion,
- NULL);
-
- init_completion(done);
- urb->context = done;
- urb->actual_length = 0;
- status = usb_submit_urb(urb, GFP_KERNEL);
-
- return status;
-}
-
-static int vstusb_complete_urb(struct urb *urb, struct completion *done,
- int timeout, int *actual_length)
-{
- unsigned long expire;
- int status;
-
- expire = timeout ? msecs_to_jiffies(timeout) : MAX_SCHEDULE_TIMEOUT;
- if (!wait_for_completion_interruptible_timeout(done, expire)) {
- usb_kill_urb(urb);
- status = urb->status == -ENOENT ? -ETIMEDOUT : urb->status;
-
- dev_dbg(&urb->dev->dev,
- "%s timed out on ep%d%s len=%d/%d, urb status = %d\n",
- current->comm,
- usb_pipeendpoint(urb->pipe),
- usb_pipein(urb->pipe) ? "in" : "out",
- urb->actual_length,
- urb->transfer_buffer_length,
- urb->status);
-
- } else {
- if (signal_pending(current)) {
- /* if really an error */
- if (urb->status && !((urb->status == -ENOENT) ||
- (urb->status == -ECONNRESET) ||
- (urb->status == -ESHUTDOWN))) {
- status = -EINTR;
- usb_kill_urb(urb);
- } else {
- status = 0;
- }
-
- dev_dbg(&urb->dev->dev,
- "%s: signal pending on ep%d%s len=%d/%d,"
- "urb status = %d\n",
- current->comm,
- usb_pipeendpoint(urb->pipe),
- usb_pipein(urb->pipe) ? "in" : "out",
- urb->actual_length,
- urb->transfer_buffer_length,
- urb->status);
-
- } else {
- status = urb->status;
- }
- }
-
- if (actual_length)
- *actual_length = urb->actual_length;
-
- return status;
-}
-
-static ssize_t vstusb_read(struct file *file, char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct vstusb_device *vstdev;
- int cnt = -1;
- void *buf;
- int retval = 0;
-
- struct urb *urb;
- struct usb_device *dev;
- unsigned int pipe;
- int timeout;
-
- DECLARE_COMPLETION_ONSTACK(done);
-
- vstdev = file->private_data;
-
- if (vstdev == NULL)
- return -ENODEV;
-
- /* verify that we actually want to read some data */
- if ((count == 0) || (count > VST_MAXBUFFER))
- return -EINVAL;
-
- /* lock this object */
- if (mutex_lock_interruptible(&vstdev->lock))
- return -ERESTARTSYS;
-
- /* anyone home */
- if (!vstdev->present) {
- mutex_unlock(&vstdev->lock);
- printk(KERN_ERR KBUILD_MODNAME
- ": %s: device not present\n", __func__);
- return -ENODEV;
- }
-
- /* pull out the necessary data */
- dev = vstdev->usb_dev;
- pipe = usb_rcvbulkpipe(dev, vstdev->rd_pipe);
- timeout = vstdev->rd_timeout_ms;
-
- buf = kmalloc(count, GFP_KERNEL);
- if (buf == NULL) {
- mutex_unlock(&vstdev->lock);
- return -ENOMEM;
- }
-
- urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!urb) {
- kfree(buf);
- mutex_unlock(&vstdev->lock);
- return -ENOMEM;
- }
-
- usb_anchor_urb(urb, &vstdev->submitted);
- retval = vstusb_fill_and_send_urb(urb, dev, pipe, buf, count, &done);
- mutex_unlock(&vstdev->lock);
- if (retval) {
- usb_unanchor_urb(urb);
- dev_err(&dev->dev, "%s: error %d filling and sending urb %d\n",
- __func__, retval, pipe);
- goto exit;
- }
-
- retval = vstusb_complete_urb(urb, &done, timeout, &cnt);
- if (retval) {
- dev_err(&dev->dev, "%s: error %d completing urb %d\n",
- __func__, retval, pipe);
- goto exit;
- }
-
- if (copy_to_user(buffer, buf, cnt)) {
- dev_err(&dev->dev, "%s: can't copy_to_user\n", __func__);
- retval = -EFAULT;
- } else {
- retval = cnt;
- dev_dbg(&dev->dev, "%s: read %d bytes from pipe %d\n",
- __func__, cnt, pipe);
- }
-
-exit:
- usb_free_urb(urb);
- kfree(buf);
- return retval;
-}
-
-static ssize_t vstusb_write(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct vstusb_device *vstdev;
- int cnt = -1;
- void *buf;
- int retval = 0;
-
- struct urb *urb;
- struct usb_device *dev;
- unsigned int pipe;
- int timeout;
-
- DECLARE_COMPLETION_ONSTACK(done);
-
- vstdev = file->private_data;
-
- if (vstdev == NULL)
- return -ENODEV;
-
- /* verify that we actually have some data to write */
- if ((count == 0) || (count > VST_MAXBUFFER))
- return retval;
-
- /* lock this object */
- if (mutex_lock_interruptible(&vstdev->lock))
- return -ERESTARTSYS;
-
- /* anyone home */
- if (!vstdev->present) {
- mutex_unlock(&vstdev->lock);
- printk(KERN_ERR KBUILD_MODNAME
- ": %s: device not present\n", __func__);
- return -ENODEV;
- }
-
- /* pull out the necessary data */
- dev = vstdev->usb_dev;
- pipe = usb_sndbulkpipe(dev, vstdev->wr_pipe);
- timeout = vstdev->wr_timeout_ms;
-
- buf = kmalloc(count, GFP_KERNEL);
- if (buf == NULL) {
- mutex_unlock(&vstdev->lock);
- return -ENOMEM;
- }
-
- urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!urb) {
- kfree(buf);
- mutex_unlock(&vstdev->lock);
- return -ENOMEM;
- }
-
- if (copy_from_user(buf, buffer, count)) {
- mutex_unlock(&vstdev->lock);
- dev_err(&dev->dev, "%s: can't copy_from_user\n", __func__);
- retval = -EFAULT;
- goto exit;
- }
-
- usb_anchor_urb(urb, &vstdev->submitted);
- retval = vstusb_fill_and_send_urb(urb, dev, pipe, buf, count, &done);
- mutex_unlock(&vstdev->lock);
- if (retval) {
- usb_unanchor_urb(urb);
- dev_err(&dev->dev, "%s: error %d filling and sending urb %d\n",
- __func__, retval, pipe);
- goto exit;
- }
-
- retval = vstusb_complete_urb(urb, &done, timeout, &cnt);
- if (retval) {
- dev_err(&dev->dev, "%s: error %d completing urb %d\n",
- __func__, retval, pipe);
- goto exit;
- } else {
- retval = cnt;
- dev_dbg(&dev->dev, "%s: sent %d bytes to pipe %d\n",
- __func__, cnt, pipe);
- }
-
-exit:
- usb_free_urb(urb);
- kfree(buf);
- return retval;
-}
-
-static long vstusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
- int retval = 0;
- int cnt = -1;
- void __user *data = (void __user *)arg;
- struct vstusb_args usb_data;
-
- struct vstusb_device *vstdev;
- void *buffer = NULL; /* must be initialized. buffer is
- * referenced on exit but not all
- * ioctls allocate it */
-
- struct urb *urb = NULL; /* must be initialized. urb is
- * referenced on exit but not all
- * ioctls allocate it */
- struct usb_device *dev;
- unsigned int pipe;
- int timeout;
-
- DECLARE_COMPLETION_ONSTACK(done);
-
- vstdev = file->private_data;
-
- if (_IOC_TYPE(cmd) != VST_IOC_MAGIC) {
- dev_warn(&vstdev->usb_dev->dev,
- "%s: ioctl command %x, bad ioctl magic %x, "
- "expected %x\n", __func__, cmd,
- _IOC_TYPE(cmd), VST_IOC_MAGIC);
- return -EINVAL;
- }
-
- if (vstdev == NULL)
- return -ENODEV;
-
- if (copy_from_user(&usb_data, data, sizeof(struct vstusb_args))) {
- dev_err(&vstdev->usb_dev->dev, "%s: can't copy_from_user\n",
- __func__);
- return -EFAULT;
- }
-
- /* lock this object */
- if (mutex_lock_interruptible(&vstdev->lock)) {
- retval = -ERESTARTSYS;
- goto exit;
- }
-
- /* anyone home */
- if (!vstdev->present) {
- mutex_unlock(&vstdev->lock);
- dev_err(&vstdev->usb_dev->dev, "%s: device not present\n",
- __func__);
- retval = -ENODEV;
- goto exit;
- }
-
- /* pull out the necessary data */
- dev = vstdev->usb_dev;
-
- switch (cmd) {
-
- case IOCTL_VSTUSB_CONFIG_RW:
-
- vstdev->rd_pipe = usb_data.rd_pipe;
- vstdev->rd_timeout_ms = usb_data.rd_timeout_ms;
- vstdev->wr_pipe = usb_data.wr_pipe;
- vstdev->wr_timeout_ms = usb_data.wr_timeout_ms;
-
- mutex_unlock(&vstdev->lock);
-
- dev_dbg(&dev->dev, "%s: setting pipes/timeouts, "
- "rdpipe = %d, rdtimeout = %d, "
- "wrpipe = %d, wrtimeout = %d\n", __func__,
- vstdev->rd_pipe, vstdev->rd_timeout_ms,
- vstdev->wr_pipe, vstdev->wr_timeout_ms);
- break;
-
- case IOCTL_VSTUSB_SEND_PIPE:
-
- if ((usb_data.count == 0) || (usb_data.count > VST_MAXBUFFER)) {
- mutex_unlock(&vstdev->lock);
- retval = -EINVAL;
- goto exit;
- }
-
- buffer = kmalloc(usb_data.count, GFP_KERNEL);
- if (buffer == NULL) {
- mutex_unlock(&vstdev->lock);
- retval = -ENOMEM;
- goto exit;
- }
-
- urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!urb) {
- mutex_unlock(&vstdev->lock);
- retval = -ENOMEM;
- goto exit;
- }
-
- timeout = usb_data.timeout_ms;
-
- pipe = usb_sndbulkpipe(dev, usb_data.pipe);
-
- if (copy_from_user(buffer, usb_data.buffer, usb_data.count)) {
- dev_err(&dev->dev, "%s: can't copy_from_user\n",
- __func__);
- mutex_unlock(&vstdev->lock);
- retval = -EFAULT;
- goto exit;
- }
-
- usb_anchor_urb(urb, &vstdev->submitted);
- retval = vstusb_fill_and_send_urb(urb, dev, pipe, buffer,
- usb_data.count, &done);
- mutex_unlock(&vstdev->lock);
- if (retval) {
- usb_unanchor_urb(urb);
- dev_err(&dev->dev,
- "%s: error %d filling and sending urb %d\n",
- __func__, retval, pipe);
- goto exit;
- }
-
- retval = vstusb_complete_urb(urb, &done, timeout, &cnt);
- if (retval) {
- dev_err(&dev->dev, "%s: error %d completing urb %d\n",
- __func__, retval, pipe);
- }
-
- break;
- case IOCTL_VSTUSB_RECV_PIPE:
-
- if ((usb_data.count == 0) || (usb_data.count > VST_MAXBUFFER)) {
- mutex_unlock(&vstdev->lock);
- retval = -EINVAL;
- goto exit;
- }
-
- buffer = kmalloc(usb_data.count, GFP_KERNEL);
- if (buffer == NULL) {
- mutex_unlock(&vstdev->lock);
- retval = -ENOMEM;
- goto exit;
- }
-
- urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!urb) {
- mutex_unlock(&vstdev->lock);
- retval = -ENOMEM;
- goto exit;
- }
-
- timeout = usb_data.timeout_ms;
-
- pipe = usb_rcvbulkpipe(dev, usb_data.pipe);
-
- usb_anchor_urb(urb, &vstdev->submitted);
- retval = vstusb_fill_and_send_urb(urb, dev, pipe, buffer,
- usb_data.count, &done);
- mutex_unlock(&vstdev->lock);
- if (retval) {
- usb_unanchor_urb(urb);
- dev_err(&dev->dev,
- "%s: error %d filling and sending urb %d\n",
- __func__, retval, pipe);
- goto exit;
- }
-
- retval = vstusb_complete_urb(urb, &done, timeout, &cnt);
- if (retval) {
- dev_err(&dev->dev, "%s: error %d completing urb %d\n",
- __func__, retval, pipe);
- goto exit;
- }
-
- if (copy_to_user(usb_data.buffer, buffer, cnt)) {
- dev_err(&dev->dev, "%s: can't copy_to_user\n",
- __func__);
- retval = -EFAULT;
- goto exit;
- }
-
- usb_data.count = cnt;
- if (copy_to_user(data, &usb_data, sizeof(struct vstusb_args))) {
- dev_err(&dev->dev, "%s: can't copy_to_user\n",
- __func__);
- retval = -EFAULT;
- } else {
- dev_dbg(&dev->dev, "%s: recv %zd bytes from pipe %d\n",
- __func__, usb_data.count, usb_data.pipe);
- }
-
- break;
-
- default:
- mutex_unlock(&vstdev->lock);
- dev_warn(&dev->dev, "ioctl_vstusb: invalid ioctl cmd %x\n",
- cmd);
- return -EINVAL;
- break;
- }
-exit:
- usb_free_urb(urb);
- kfree(buffer);
- return retval;
-}
-
-static const struct file_operations vstusb_fops = {
- .owner = THIS_MODULE,
- .read = vstusb_read,
- .write = vstusb_write,
- .unlocked_ioctl = vstusb_ioctl,
- .compat_ioctl = vstusb_ioctl,
- .open = vstusb_open,
- .release = vstusb_release,
-};
-
-static struct usb_class_driver usb_vstusb_class = {
- .name = "usb/vstusb%d",
- .fops = &vstusb_fops,
- .minor_base = VSTUSB_MINOR_BASE,
-};
-
-static int vstusb_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
-{
- struct usb_device *dev = interface_to_usbdev(intf);
- struct vstusb_device *vstdev;
- int i;
- int retval = 0;
-
- /* allocate memory for our device state and intialize it */
-
- vstdev = kzalloc(sizeof(*vstdev), GFP_KERNEL);
- if (vstdev == NULL)
- return -ENOMEM;
-
- /* must do usb_get_dev() prior to kref_init() since the kref_put()
- * release function will do a usb_put_dev() */
- usb_get_dev(dev);
- kref_init(&vstdev->kref);
- mutex_init(&vstdev->lock);
-
- i = dev->descriptor.bcdDevice;
-
- dev_dbg(&intf->dev, "Version %1d%1d.%1d%1d found at address %d\n",
- (i & 0xF000) >> 12, (i & 0xF00) >> 8,
- (i & 0xF0) >> 4, (i & 0xF), dev->devnum);
-
- vstdev->present = 1;
- vstdev->isopen = 0;
- vstdev->usb_dev = dev;
- init_usb_anchor(&vstdev->submitted);
-
- usb_set_intfdata(intf, vstdev);
- retval = usb_register_dev(intf, &usb_vstusb_class);
- if (retval) {
- dev_err(&intf->dev,
- "%s: Not able to get a minor for this device.\n",
- __func__);
- usb_set_intfdata(intf, NULL);
- kref_put(&vstdev->kref, vstusb_delete);
- return retval;
- }
-
- /* let the user know what node this device is now attached to */
- dev_info(&intf->dev,
- "VST USB Device #%d now attached to major %d minor %d\n",
- (intf->minor - VSTUSB_MINOR_BASE), USB_MAJOR, intf->minor);
-
- dev_info(&intf->dev, "%s, %s\n", DRIVER_DESC, DRIVER_VERSION);
-
- return retval;
-}
-
-static void vstusb_disconnect(struct usb_interface *intf)
-{
- struct vstusb_device *vstdev = usb_get_intfdata(intf);
-
- usb_deregister_dev(intf, &usb_vstusb_class);
- usb_set_intfdata(intf, NULL);
-
- if (vstdev) {
-
- mutex_lock(&vstdev->lock);
- vstdev->present = 0;
-
- usb_kill_anchored_urbs(&vstdev->submitted);
-
- mutex_unlock(&vstdev->lock);
-
- kref_put(&vstdev->kref, vstusb_delete);
- }
-
-}
-
-static int vstusb_suspend(struct usb_interface *intf, pm_message_t message)
-{
- struct vstusb_device *vstdev = usb_get_intfdata(intf);
- int time;
- if (!vstdev)
- return 0;
-
- mutex_lock(&vstdev->lock);
- time = usb_wait_anchor_empty_timeout(&vstdev->submitted, 1000);
- if (!time)
- usb_kill_anchored_urbs(&vstdev->submitted);
- mutex_unlock(&vstdev->lock);
-
- return 0;
-}
-
-static int vstusb_resume(struct usb_interface *intf)
-{
- return 0;
-}
-
-static struct usb_driver vstusb_driver = {
- .name = "vstusb",
- .probe = vstusb_probe,
- .disconnect = vstusb_disconnect,
- .suspend = vstusb_suspend,
- .resume = vstusb_resume,
- .id_table = id_table,
-};
-
-static int __init vstusb_init(void)
-{
- int rc;
-
- rc = usb_register(&vstusb_driver);
- if (rc)
- printk(KERN_ERR "%s: failed to register (%d)", __func__, rc);
-
- return rc;
-}
-
-static void __exit vstusb_exit(void)
-{
- usb_deregister(&vstusb_driver);
-}
-
-module_init(vstusb_init);
-module_exit(vstusb_exit);
-
-MODULE_AUTHOR("Dennis O'Brien/Stephen Ware");
-MODULE_DESCRIPTION(DRIVER_VERSION);
-MODULE_LICENSE("GPL");
char ev_type, int status)
{
const struct usb_endpoint_descriptor *epd = &urb->ep->desc;
- unsigned long flags;
struct timeval ts;
+ unsigned long flags;
unsigned int urb_length;
unsigned int offset;
unsigned int length;
static void mon_bin_error(void *data, struct urb *urb, int error)
{
struct mon_reader_bin *rp = data;
+ struct timeval ts;
unsigned long flags;
unsigned int offset;
struct mon_bin_hdr *ep;
+ do_gettimeofday(&ts);
+
spin_lock_irqsave(&rp->b_lock, flags);
offset = mon_buff_area_alloc(rp, PKT_SIZE);
ep->devnum = urb->dev->devnum;
ep->busnum = urb->dev->bus->busnum;
ep->id = (unsigned long) urb;
+ ep->ts_sec = ts.tv_sec;
+ ep->ts_usec = ts.tv_usec;
ep->status = error;
ep->flag_setup = '-';
unsigned int stamp;
do_gettimeofday(&tval);
- stamp = tval.tv_sec & 0xFFFF; /* 2^32 = 4294967296. Limit to 4096s. */
+ stamp = tval.tv_sec & 0xFFF; /* 2^32 = 4294967296. Limit to 4096s. */
stamp = stamp * 1000000 + tval.tv_usec;
return stamp;
}
ep->type = 'E';
ep->id = (unsigned long) urb;
- ep->busnum = 0;
+ ep->busnum = urb->dev->bus->busnum;
ep->devnum = urb->dev->devnum;
ep->epnum = usb_endpoint_num(&urb->ep->desc);
ep->xfertype = usb_endpoint_type(&urb->ep->desc);
ep->is_in = usb_urb_dir_in(urb);
- ep->tstamp = 0;
+ ep->tstamp = mon_get_timestamp();
ep->length = 0;
ep->status = error;
void __iomem *fifo = hw_ep->fifo;
void __iomem *epio = hw_ep->regs;
u8 epnum = hw_ep->epnum;
- u16 dma_reg = 0;
prefetch((u8 *)src);
dump_fifo_data(src, len);
if (!ANOMALY_05000380 && epnum != 0) {
- flush_dcache_range((unsigned int)src,
- (unsigned int)(src + len));
+ u16 dma_reg;
+
+ flush_dcache_range((unsigned long)src,
+ (unsigned long)(src + len));
/* Setup DMA address register */
- dma_reg = (u16) ((u32) src & 0xFFFF);
+ dma_reg = (u32)src;
bfin_write16(USB_DMA_REG(epnum, USB_DMAx_ADDR_LOW), dma_reg);
SSYNC();
- dma_reg = (u16) (((u32) src >> 16) & 0xFFFF);
+ dma_reg = (u32)src >> 16;
bfin_write16(USB_DMA_REG(epnum, USB_DMAx_ADDR_HIGH), dma_reg);
SSYNC();
SSYNC();
if (unlikely((unsigned long)src & 0x01))
- outsw_8((unsigned long)fifo, src,
- len & 0x01 ? (len >> 1) + 1 : len >> 1);
+ outsw_8((unsigned long)fifo, src, (len + 1) >> 1);
else
- outsw((unsigned long)fifo, src,
- len & 0x01 ? (len >> 1) + 1 : len >> 1);
-
+ outsw((unsigned long)fifo, src, (len + 1) >> 1);
}
}
/*
{
void __iomem *fifo = hw_ep->fifo;
u8 epnum = hw_ep->epnum;
- u16 dma_reg = 0;
if (ANOMALY_05000467 && epnum != 0) {
+ u16 dma_reg;
- invalidate_dcache_range((unsigned int)dst,
- (unsigned int)(dst + len));
+ invalidate_dcache_range((unsigned long)dst,
+ (unsigned long)(dst + len));
/* Setup DMA address register */
- dma_reg = (u16) ((u32) dst & 0xFFFF);
+ dma_reg = (u32)dst;
bfin_write16(USB_DMA_REG(epnum, USB_DMAx_ADDR_LOW), dma_reg);
SSYNC();
- dma_reg = (u16) (((u32) dst >> 16) & 0xFFFF);
+ dma_reg = (u32)dst >> 16;
bfin_write16(USB_DMA_REG(epnum, USB_DMAx_ADDR_HIGH), dma_reg);
SSYNC();
bd = tx_ch->head;
+ /*
+ * If Head is null then this could mean that a abort interrupt
+ * that needs to be acknowledged.
+ */
if (NULL == bd) {
DBG(1, "null BD\n");
+ tx_ram->tx_complete = 0;
continue;
}
if (cppi_ch->transmit) {
struct cppi_tx_stateram __iomem *tx_ram;
- int enabled;
-
- /* mask interrupts raised to signal teardown complete. */
- enabled = musb_readl(tibase, DAVINCI_TXCPPI_INTENAB_REG)
- & (1 << cppi_ch->index);
- if (enabled)
- musb_writel(tibase, DAVINCI_TXCPPI_INTCLR_REG,
- (1 << cppi_ch->index));
-
/* REVISIT put timeouts on these controller handshakes */
cppi_dump_tx(6, cppi_ch, " (teardown)");
do {
value = musb_readl(&tx_ram->tx_complete, 0);
} while (0xFFFFFFFC != value);
- musb_writel(&tx_ram->tx_complete, 0, 0xFFFFFFFC);
/* FIXME clean up the transfer state ... here?
* the completion routine should get called with
musb_writew(regs, MUSB_TXCSR, value);
musb_writew(regs, MUSB_TXCSR, value);
- /* While we scrub the TX state RAM, ensure that we clean
- * up any interrupt that's currently asserted:
+ /*
* 1. Write to completion Ptr value 0x1(bit 0 set)
* (write back mode)
- * 2. Write to completion Ptr value 0x0(bit 0 cleared)
- * (compare mode)
- * Value written is compared(for bits 31:2) and when
- * equal, interrupt is deasserted.
+ * 2. Wait for abort interrupt and then put the channel in
+ * compare mode by writing 1 to the tx_complete register.
*/
cppi_reset_tx(tx_ram, 1);
- musb_writel(&tx_ram->tx_complete, 0, 0);
-
- /* re-enable interrupt */
- if (enabled)
- musb_writel(tibase, DAVINCI_TXCPPI_INTENAB_REG,
- (1 << cppi_ch->index));
-
+ cppi_ch->head = 0;
+ musb_writel(&tx_ram->tx_complete, 0, 1);
cppi_dump_tx(5, cppi_ch, " (done teardown)");
/* REVISIT tx side _should_ clean up the same way
handled = IRQ_HANDLED;
}
+
+ if (int_usb & MUSB_INTR_SUSPEND) {
+ DBG(1, "SUSPEND (%s) devctl %02x power %02x\n",
+ otg_state_string(musb), devctl, power);
+ handled = IRQ_HANDLED;
+
+ switch (musb->xceiv->state) {
+#ifdef CONFIG_USB_MUSB_OTG
+ case OTG_STATE_A_PERIPHERAL:
+ /* We also come here if the cable is removed, since
+ * this silicon doesn't report ID-no-longer-grounded.
+ *
+ * We depend on T(a_wait_bcon) to shut us down, and
+ * hope users don't do anything dicey during this
+ * undesired detour through A_WAIT_BCON.
+ */
+ musb_hnp_stop(musb);
+ usb_hcd_resume_root_hub(musb_to_hcd(musb));
+ musb_root_disconnect(musb);
+ musb_platform_try_idle(musb, jiffies
+ + msecs_to_jiffies(musb->a_wait_bcon
+ ? : OTG_TIME_A_WAIT_BCON));
+
+ break;
+#endif
+ case OTG_STATE_B_IDLE:
+ if (!musb->is_active)
+ break;
+ case OTG_STATE_B_PERIPHERAL:
+ musb_g_suspend(musb);
+ musb->is_active = is_otg_enabled(musb)
+ && musb->xceiv->gadget->b_hnp_enable;
+ if (musb->is_active) {
+#ifdef CONFIG_USB_MUSB_OTG
+ musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
+ DBG(1, "HNP: Setting timer for b_ase0_brst\n");
+ mod_timer(&musb->otg_timer, jiffies
+ + msecs_to_jiffies(
+ OTG_TIME_B_ASE0_BRST));
+#endif
+ }
+ break;
+ case OTG_STATE_A_WAIT_BCON:
+ if (musb->a_wait_bcon != 0)
+ musb_platform_try_idle(musb, jiffies
+ + msecs_to_jiffies(musb->a_wait_bcon));
+ break;
+ case OTG_STATE_A_HOST:
+ musb->xceiv->state = OTG_STATE_A_SUSPEND;
+ musb->is_active = is_otg_enabled(musb)
+ && musb->xceiv->host->b_hnp_enable;
+ break;
+ case OTG_STATE_B_HOST:
+ /* Transition to B_PERIPHERAL, see 6.8.2.6 p 44 */
+ DBG(1, "REVISIT: SUSPEND as B_HOST\n");
+ break;
+ default:
+ /* "should not happen" */
+ musb->is_active = 0;
+ break;
+ }
+ }
+
if (int_usb & MUSB_INTR_CONNECT) {
struct usb_hcd *hcd = musb_to_hcd(musb);
}
#endif /* CONFIG_USB_MUSB_HDRC_HCD */
+ if ((int_usb & MUSB_INTR_DISCONNECT) && !musb->ignore_disconnect) {
+ DBG(1, "DISCONNECT (%s) as %s, devctl %02x\n",
+ otg_state_string(musb),
+ MUSB_MODE(musb), devctl);
+ handled = IRQ_HANDLED;
+
+ switch (musb->xceiv->state) {
+#ifdef CONFIG_USB_MUSB_HDRC_HCD
+ case OTG_STATE_A_HOST:
+ case OTG_STATE_A_SUSPEND:
+ usb_hcd_resume_root_hub(musb_to_hcd(musb));
+ musb_root_disconnect(musb);
+ if (musb->a_wait_bcon != 0 && is_otg_enabled(musb))
+ musb_platform_try_idle(musb, jiffies
+ + msecs_to_jiffies(musb->a_wait_bcon));
+ break;
+#endif /* HOST */
+#ifdef CONFIG_USB_MUSB_OTG
+ case OTG_STATE_B_HOST:
+ /* REVISIT this behaves for "real disconnect"
+ * cases; make sure the other transitions from
+ * from B_HOST act right too. The B_HOST code
+ * in hnp_stop() is currently not used...
+ */
+ musb_root_disconnect(musb);
+ musb_to_hcd(musb)->self.is_b_host = 0;
+ musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ MUSB_DEV_MODE(musb);
+ musb_g_disconnect(musb);
+ break;
+ case OTG_STATE_A_PERIPHERAL:
+ musb_hnp_stop(musb);
+ musb_root_disconnect(musb);
+ /* FALLTHROUGH */
+ case OTG_STATE_B_WAIT_ACON:
+ /* FALLTHROUGH */
+#endif /* OTG */
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
+ case OTG_STATE_B_PERIPHERAL:
+ case OTG_STATE_B_IDLE:
+ musb_g_disconnect(musb);
+ break;
+#endif /* GADGET */
+ default:
+ WARNING("unhandled DISCONNECT transition (%s)\n",
+ otg_state_string(musb));
+ break;
+ }
+ }
+
/* mentor saves a bit: bus reset and babble share the same irq.
* only host sees babble; only peripheral sees bus reset.
*/
if (int_usb & MUSB_INTR_RESET) {
+ handled = IRQ_HANDLED;
if (is_host_capable() && (devctl & MUSB_DEVCTL_HM) != 0) {
/*
* Looks like non-HS BABBLE can be ignored, but
DBG(1, "BABBLE devctl: %02x\n", devctl);
else {
ERR("Stopping host session -- babble\n");
- musb_writeb(mbase, MUSB_DEVCTL, 0);
+ musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
}
} else if (is_peripheral_capable()) {
DBG(1, "BUS RESET as %s\n", otg_state_string(musb));
otg_state_string(musb));
}
}
-
- handled = IRQ_HANDLED;
}
- schedule_work(&musb->irq_work);
-
- return handled;
-}
-
-/*
- * Interrupt Service Routine to record USB "global" interrupts.
- * Since these do not happen often and signify things of
- * paramount importance, it seems OK to check them individually;
- * the order of the tests is specified in the manual
- *
- * @param musb instance pointer
- * @param int_usb register contents
- * @param devctl
- * @param power
- */
-static irqreturn_t musb_stage2_irq(struct musb *musb, u8 int_usb,
- u8 devctl, u8 power)
-{
- irqreturn_t handled = IRQ_NONE;
#if 0
/* REVISIT ... this would be for multiplexing periodic endpoints, or
}
#endif
- if ((int_usb & MUSB_INTR_DISCONNECT) && !musb->ignore_disconnect) {
- DBG(1, "DISCONNECT (%s) as %s, devctl %02x\n",
- otg_state_string(musb),
- MUSB_MODE(musb), devctl);
- handled = IRQ_HANDLED;
-
- switch (musb->xceiv->state) {
-#ifdef CONFIG_USB_MUSB_HDRC_HCD
- case OTG_STATE_A_HOST:
- case OTG_STATE_A_SUSPEND:
- usb_hcd_resume_root_hub(musb_to_hcd(musb));
- musb_root_disconnect(musb);
- if (musb->a_wait_bcon != 0 && is_otg_enabled(musb))
- musb_platform_try_idle(musb, jiffies
- + msecs_to_jiffies(musb->a_wait_bcon));
- break;
-#endif /* HOST */
-#ifdef CONFIG_USB_MUSB_OTG
- case OTG_STATE_B_HOST:
- /* REVISIT this behaves for "real disconnect"
- * cases; make sure the other transitions from
- * from B_HOST act right too. The B_HOST code
- * in hnp_stop() is currently not used...
- */
- musb_root_disconnect(musb);
- musb_to_hcd(musb)->self.is_b_host = 0;
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
- MUSB_DEV_MODE(musb);
- musb_g_disconnect(musb);
- break;
- case OTG_STATE_A_PERIPHERAL:
- musb_hnp_stop(musb);
- musb_root_disconnect(musb);
- /* FALLTHROUGH */
- case OTG_STATE_B_WAIT_ACON:
- /* FALLTHROUGH */
-#endif /* OTG */
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
- case OTG_STATE_B_PERIPHERAL:
- case OTG_STATE_B_IDLE:
- musb_g_disconnect(musb);
- break;
-#endif /* GADGET */
- default:
- WARNING("unhandled DISCONNECT transition (%s)\n",
- otg_state_string(musb));
- break;
- }
-
- schedule_work(&musb->irq_work);
- }
-
- if (int_usb & MUSB_INTR_SUSPEND) {
- DBG(1, "SUSPEND (%s) devctl %02x power %02x\n",
- otg_state_string(musb), devctl, power);
- handled = IRQ_HANDLED;
-
- switch (musb->xceiv->state) {
-#ifdef CONFIG_USB_MUSB_OTG
- case OTG_STATE_A_PERIPHERAL:
- /* We also come here if the cable is removed, since
- * this silicon doesn't report ID-no-longer-grounded.
- *
- * We depend on T(a_wait_bcon) to shut us down, and
- * hope users don't do anything dicey during this
- * undesired detour through A_WAIT_BCON.
- */
- musb_hnp_stop(musb);
- usb_hcd_resume_root_hub(musb_to_hcd(musb));
- musb_root_disconnect(musb);
- musb_platform_try_idle(musb, jiffies
- + msecs_to_jiffies(musb->a_wait_bcon
- ? : OTG_TIME_A_WAIT_BCON));
- break;
-#endif
- case OTG_STATE_B_PERIPHERAL:
- musb_g_suspend(musb);
- musb->is_active = is_otg_enabled(musb)
- && musb->xceiv->gadget->b_hnp_enable;
- if (musb->is_active) {
-#ifdef CONFIG_USB_MUSB_OTG
- musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
- DBG(1, "HNP: Setting timer for b_ase0_brst\n");
- mod_timer(&musb->otg_timer, jiffies
- + msecs_to_jiffies(
- OTG_TIME_B_ASE0_BRST));
-#endif
- }
- break;
- case OTG_STATE_A_WAIT_BCON:
- if (musb->a_wait_bcon != 0)
- musb_platform_try_idle(musb, jiffies
- + msecs_to_jiffies(musb->a_wait_bcon));
- break;
- case OTG_STATE_A_HOST:
- musb->xceiv->state = OTG_STATE_A_SUSPEND;
- musb->is_active = is_otg_enabled(musb)
- && musb->xceiv->host->b_hnp_enable;
- break;
- case OTG_STATE_B_HOST:
- /* Transition to B_PERIPHERAL, see 6.8.2.6 p 44 */
- DBG(1, "REVISIT: SUSPEND as B_HOST\n");
- break;
- default:
- /* "should not happen" */
- musb->is_active = 0;
- break;
- }
- schedule_work(&musb->irq_work);
- }
-
+ schedule_work(&musb->irq_work);
return handled;
}
{ .hw_ep_num = 15, .style = FIFO_RXTX, .maxpacket = 1024, },
};
+/* mode 5 - fits in 8KB */
+static struct fifo_cfg __initdata mode_5_cfg[] = {
+{ .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, },
+{ .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, },
+{ .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, },
+{ .hw_ep_num = 2, .style = FIFO_RX, .maxpacket = 512, },
+{ .hw_ep_num = 3, .style = FIFO_TX, .maxpacket = 512, },
+{ .hw_ep_num = 3, .style = FIFO_RX, .maxpacket = 512, },
+{ .hw_ep_num = 4, .style = FIFO_TX, .maxpacket = 512, },
+{ .hw_ep_num = 4, .style = FIFO_RX, .maxpacket = 512, },
+{ .hw_ep_num = 5, .style = FIFO_TX, .maxpacket = 512, },
+{ .hw_ep_num = 5, .style = FIFO_RX, .maxpacket = 512, },
+{ .hw_ep_num = 6, .style = FIFO_TX, .maxpacket = 32, },
+{ .hw_ep_num = 6, .style = FIFO_RX, .maxpacket = 32, },
+{ .hw_ep_num = 7, .style = FIFO_TX, .maxpacket = 32, },
+{ .hw_ep_num = 7, .style = FIFO_RX, .maxpacket = 32, },
+{ .hw_ep_num = 8, .style = FIFO_TX, .maxpacket = 32, },
+{ .hw_ep_num = 8, .style = FIFO_RX, .maxpacket = 32, },
+{ .hw_ep_num = 9, .style = FIFO_TX, .maxpacket = 32, },
+{ .hw_ep_num = 9, .style = FIFO_RX, .maxpacket = 32, },
+{ .hw_ep_num = 10, .style = FIFO_TX, .maxpacket = 32, },
+{ .hw_ep_num = 10, .style = FIFO_RX, .maxpacket = 32, },
+{ .hw_ep_num = 11, .style = FIFO_TX, .maxpacket = 32, },
+{ .hw_ep_num = 11, .style = FIFO_RX, .maxpacket = 32, },
+{ .hw_ep_num = 12, .style = FIFO_TX, .maxpacket = 32, },
+{ .hw_ep_num = 12, .style = FIFO_RX, .maxpacket = 32, },
+{ .hw_ep_num = 13, .style = FIFO_RXTX, .maxpacket = 512, },
+{ .hw_ep_num = 14, .style = FIFO_RXTX, .maxpacket = 1024, },
+{ .hw_ep_num = 15, .style = FIFO_RXTX, .maxpacket = 1024, },
+};
/*
* configure a fifo; for non-shared endpoints, this may be called
cfg = mode_4_cfg;
n = ARRAY_SIZE(mode_4_cfg);
break;
+ case 5:
+ cfg = mode_5_cfg;
+ n = ARRAY_SIZE(mode_5_cfg);
+ break;
}
printk(KERN_DEBUG "%s: setup fifo_mode %d\n",
*/
static int __init musb_core_init(u16 musb_type, struct musb *musb)
{
-#ifdef MUSB_AHB_ID
- u32 data;
-#endif
u8 reg;
char *type;
char aInfo[90], aRevision[32], aDate[12];
reg = musb_read_configdata(mbase);
strcpy(aInfo, (reg & MUSB_CONFIGDATA_UTMIDW) ? "UTMI-16" : "UTMI-8");
- if (reg & MUSB_CONFIGDATA_DYNFIFO)
+ if (reg & MUSB_CONFIGDATA_DYNFIFO) {
strcat(aInfo, ", dyn FIFOs");
+ musb->dyn_fifo = true;
+ }
if (reg & MUSB_CONFIGDATA_MPRXE) {
strcat(aInfo, ", bulk combine");
-#ifdef C_MP_RX
musb->bulk_combine = true;
-#else
- strcat(aInfo, " (X)"); /* no driver support */
-#endif
}
if (reg & MUSB_CONFIGDATA_MPTXE) {
strcat(aInfo, ", bulk split");
-#ifdef C_MP_TX
musb->bulk_split = true;
-#else
- strcat(aInfo, " (X)"); /* no driver support */
-#endif
}
if (reg & MUSB_CONFIGDATA_HBRXE) {
strcat(aInfo, ", HB-ISO Rx");
printk(KERN_DEBUG "%s: ConfigData=0x%02x (%s)\n",
musb_driver_name, reg, aInfo);
-#ifdef MUSB_AHB_ID
- data = musb_readl(mbase, 0x404);
- sprintf(aDate, "%04d-%02x-%02x", (data & 0xffff),
- (data >> 16) & 0xff, (data >> 24) & 0xff);
- /* FIXME ID2 and ID3 are unused */
- data = musb_readl(mbase, 0x408);
- printk(KERN_DEBUG "ID2=%lx\n", (long unsigned)data);
- data = musb_readl(mbase, 0x40c);
- printk(KERN_DEBUG "ID3=%lx\n", (long unsigned)data);
- reg = musb_readb(mbase, 0x400);
- musb_type = ('M' == reg) ? MUSB_CONTROLLER_MHDRC : MUSB_CONTROLLER_HDRC;
-#else
aDate[0] = 0;
-#endif
if (MUSB_CONTROLLER_MHDRC == musb_type) {
musb->is_multipoint = 1;
type = "M";
musb->nr_endpoints = 1;
musb->epmask = 1;
- if (reg & MUSB_CONFIGDATA_DYNFIFO) {
- if (musb->config->dyn_fifo)
- status = ep_config_from_table(musb);
- else {
- ERR("reconfigure software for Dynamic FIFOs\n");
- status = -ENODEV;
- }
- } else {
- if (!musb->config->dyn_fifo)
- status = ep_config_from_hw(musb);
- else {
- ERR("reconfigure software for static FIFOs\n");
- return -ENODEV;
- }
- }
+ if (musb->dyn_fifo)
+ status = ep_config_from_table(musb);
+ else
+ status = ep_config_from_hw(musb);
if (status < 0)
return status;
ep_num++;
}
- /* finish handling "global" interrupts after handling fifos */
- if (musb->int_usb)
- retval |= musb_stage2_irq(musb,
- musb->int_usb, devctl, power);
-
return retval;
}
unsigned long val;
if (sscanf(buf, "%lu", &val) < 1) {
- printk(KERN_ERR "Invalid VBUS timeout ms value\n");
+ dev_err(dev, "Invalid VBUS timeout ms value\n");
return -EINVAL;
}
if (sscanf(buf, "%hu", &srp) != 1
|| (srp != 1)) {
- printk(KERN_ERR "SRP: Value must be 1\n");
+ dev_err(dev, "SRP: Value must be 1\n");
return -EINVAL;
}
#endif /* CONFIG_USB_GADGET_MUSB_HDRC */
+static struct attribute *musb_attributes[] = {
+ &dev_attr_mode.attr,
+ &dev_attr_vbus.attr,
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
+ &dev_attr_srp.attr,
+#endif
+ NULL
+};
+
+static const struct attribute_group musb_attr_group = {
+ .attrs = musb_attributes,
+};
+
#endif /* sysfs */
/* Only used to provide driver mode change events */
*/
#ifdef CONFIG_SYSFS
- device_remove_file(musb->controller, &dev_attr_mode);
- device_remove_file(musb->controller, &dev_attr_vbus);
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
- device_remove_file(musb->controller, &dev_attr_srp);
-#endif
+ sysfs_remove_group(&musb->controller->kobj, &musb_attr_group);
#endif
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
musb->irq_wake = 0;
}
- pr_info("%s: USB %s mode controller at %p using %s, IRQ %d\n",
- musb_driver_name,
- ({char *s;
- switch (musb->board_mode) {
- case MUSB_HOST: s = "Host"; break;
- case MUSB_PERIPHERAL: s = "Peripheral"; break;
- default: s = "OTG"; break;
- }; s; }),
- ctrl,
- (is_dma_capable() && musb->dma_controller)
- ? "DMA" : "PIO",
- musb->nIrq);
-
/* host side needs more setup */
if (is_host_enabled(musb)) {
struct usb_hcd *hcd = musb_to_hcd(musb);
+ u8 busctl;
otg_set_host(musb->xceiv, &hcd->self);
hcd->self.otg_port = 1;
musb->xceiv->host = &hcd->self;
hcd->power_budget = 2 * (plat->power ? : 250);
+
+ /* program PHY to use external vBus if required */
+ if (plat->extvbus) {
+ busctl = musb_readb(musb->mregs, MUSB_ULPI_BUSCONTROL);
+ busctl |= MUSB_ULPI_USE_EXTVBUS;
+ musb_writeb(musb->mregs, MUSB_ULPI_BUSCONTROL, busctl);
+ }
}
/* For the host-only role, we can activate right away.
}
#ifdef CONFIG_SYSFS
- status = device_create_file(dev, &dev_attr_mode);
- status = device_create_file(dev, &dev_attr_vbus);
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
- status = device_create_file(dev, &dev_attr_srp);
-#endif /* CONFIG_USB_GADGET_MUSB_HDRC */
- status = 0;
+ status = sysfs_create_group(&musb->controller->kobj, &musb_attr_group);
#endif
if (status)
goto fail2;
+ dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n",
+ ({char *s;
+ switch (musb->board_mode) {
+ case MUSB_HOST: s = "Host"; break;
+ case MUSB_PERIPHERAL: s = "Peripheral"; break;
+ default: s = "OTG"; break;
+ }; s; }),
+ ctrl,
+ (is_dma_capable() && musb->dma_controller)
+ ? "DMA" : "PIO",
+ musb->nIrq);
+
return 0;
fail2:
-#ifdef CONFIG_SYSFS
- device_remove_file(musb->controller, &dev_attr_mode);
- device_remove_file(musb->controller, &dev_attr_vbus);
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
- device_remove_file(musb->controller, &dev_attr_srp);
-#endif
-#endif
musb_platform_exit(musb);
fail:
dev_err(musb->controller,
{
struct device *dev = &pdev->dev;
int irq = platform_get_irq(pdev, 0);
+ int status;
struct resource *iomem;
void __iomem *base;
if (!iomem || irq == 0)
return -ENODEV;
- base = ioremap(iomem->start, iomem->end - iomem->start + 1);
+ base = ioremap(iomem->start, resource_size(iomem));
if (!base) {
dev_err(dev, "ioremap failed\n");
return -ENOMEM;
/* clobbered by use_dma=n */
orig_dma_mask = dev->dma_mask;
#endif
- return musb_init_controller(dev, irq, base);
+
+ status = musb_init_controller(dev, irq, base);
+ if (status < 0)
+ iounmap(base);
+
+ return status;
}
static int __exit musb_remove(struct platform_device *pdev)
#ifdef CONFIG_PM
+static struct musb_context_registers musb_context;
+
+void musb_save_context(struct musb *musb)
+{
+ int i;
+ void __iomem *musb_base = musb->mregs;
+
+ if (is_host_enabled(musb)) {
+ musb_context.frame = musb_readw(musb_base, MUSB_FRAME);
+ musb_context.testmode = musb_readb(musb_base, MUSB_TESTMODE);
+ }
+ musb_context.power = musb_readb(musb_base, MUSB_POWER);
+ musb_context.intrtxe = musb_readw(musb_base, MUSB_INTRTXE);
+ musb_context.intrrxe = musb_readw(musb_base, MUSB_INTRRXE);
+ musb_context.intrusbe = musb_readb(musb_base, MUSB_INTRUSBE);
+ musb_context.index = musb_readb(musb_base, MUSB_INDEX);
+ musb_context.devctl = musb_readb(musb_base, MUSB_DEVCTL);
+
+ for (i = 0; i < MUSB_C_NUM_EPS; ++i) {
+ musb_writeb(musb_base, MUSB_INDEX, i);
+ musb_context.index_regs[i].txmaxp =
+ musb_readw(musb_base, 0x10 + MUSB_TXMAXP);
+ musb_context.index_regs[i].txcsr =
+ musb_readw(musb_base, 0x10 + MUSB_TXCSR);
+ musb_context.index_regs[i].rxmaxp =
+ musb_readw(musb_base, 0x10 + MUSB_RXMAXP);
+ musb_context.index_regs[i].rxcsr =
+ musb_readw(musb_base, 0x10 + MUSB_RXCSR);
+
+ if (musb->dyn_fifo) {
+ musb_context.index_regs[i].txfifoadd =
+ musb_read_txfifoadd(musb_base);
+ musb_context.index_regs[i].rxfifoadd =
+ musb_read_rxfifoadd(musb_base);
+ musb_context.index_regs[i].txfifosz =
+ musb_read_txfifosz(musb_base);
+ musb_context.index_regs[i].rxfifosz =
+ musb_read_rxfifosz(musb_base);
+ }
+ if (is_host_enabled(musb)) {
+ musb_context.index_regs[i].txtype =
+ musb_readb(musb_base, 0x10 + MUSB_TXTYPE);
+ musb_context.index_regs[i].txinterval =
+ musb_readb(musb_base, 0x10 + MUSB_TXINTERVAL);
+ musb_context.index_regs[i].rxtype =
+ musb_readb(musb_base, 0x10 + MUSB_RXTYPE);
+ musb_context.index_regs[i].rxinterval =
+ musb_readb(musb_base, 0x10 + MUSB_RXINTERVAL);
+
+ musb_context.index_regs[i].txfunaddr =
+ musb_read_txfunaddr(musb_base, i);
+ musb_context.index_regs[i].txhubaddr =
+ musb_read_txhubaddr(musb_base, i);
+ musb_context.index_regs[i].txhubport =
+ musb_read_txhubport(musb_base, i);
+
+ musb_context.index_regs[i].rxfunaddr =
+ musb_read_rxfunaddr(musb_base, i);
+ musb_context.index_regs[i].rxhubaddr =
+ musb_read_rxhubaddr(musb_base, i);
+ musb_context.index_regs[i].rxhubport =
+ musb_read_rxhubport(musb_base, i);
+ }
+ }
+
+ musb_writeb(musb_base, MUSB_INDEX, musb_context.index);
+
+ musb_platform_save_context(musb, &musb_context);
+}
+
+void musb_restore_context(struct musb *musb)
+{
+ int i;
+ void __iomem *musb_base = musb->mregs;
+ void __iomem *ep_target_regs;
+
+ musb_platform_restore_context(musb, &musb_context);
+
+ if (is_host_enabled(musb)) {
+ musb_writew(musb_base, MUSB_FRAME, musb_context.frame);
+ musb_writeb(musb_base, MUSB_TESTMODE, musb_context.testmode);
+ }
+ musb_writeb(musb_base, MUSB_POWER, musb_context.power);
+ musb_writew(musb_base, MUSB_INTRTXE, musb_context.intrtxe);
+ musb_writew(musb_base, MUSB_INTRRXE, musb_context.intrrxe);
+ musb_writeb(musb_base, MUSB_INTRUSBE, musb_context.intrusbe);
+ musb_writeb(musb_base, MUSB_DEVCTL, musb_context.devctl);
+
+ for (i = 0; i < MUSB_C_NUM_EPS; ++i) {
+ musb_writeb(musb_base, MUSB_INDEX, i);
+ musb_writew(musb_base, 0x10 + MUSB_TXMAXP,
+ musb_context.index_regs[i].txmaxp);
+ musb_writew(musb_base, 0x10 + MUSB_TXCSR,
+ musb_context.index_regs[i].txcsr);
+ musb_writew(musb_base, 0x10 + MUSB_RXMAXP,
+ musb_context.index_regs[i].rxmaxp);
+ musb_writew(musb_base, 0x10 + MUSB_RXCSR,
+ musb_context.index_regs[i].rxcsr);
+
+ if (musb->dyn_fifo) {
+ musb_write_txfifosz(musb_base,
+ musb_context.index_regs[i].txfifosz);
+ musb_write_rxfifosz(musb_base,
+ musb_context.index_regs[i].rxfifosz);
+ musb_write_txfifoadd(musb_base,
+ musb_context.index_regs[i].txfifoadd);
+ musb_write_rxfifoadd(musb_base,
+ musb_context.index_regs[i].rxfifoadd);
+ }
+
+ if (is_host_enabled(musb)) {
+ musb_writeb(musb_base, 0x10 + MUSB_TXTYPE,
+ musb_context.index_regs[i].txtype);
+ musb_writeb(musb_base, 0x10 + MUSB_TXINTERVAL,
+ musb_context.index_regs[i].txinterval);
+ musb_writeb(musb_base, 0x10 + MUSB_RXTYPE,
+ musb_context.index_regs[i].rxtype);
+ musb_writeb(musb_base, 0x10 + MUSB_RXINTERVAL,
+
+ musb_context.index_regs[i].rxinterval);
+ musb_write_txfunaddr(musb_base, i,
+ musb_context.index_regs[i].txfunaddr);
+ musb_write_txhubaddr(musb_base, i,
+ musb_context.index_regs[i].txhubaddr);
+ musb_write_txhubport(musb_base, i,
+ musb_context.index_regs[i].txhubport);
+
+ ep_target_regs =
+ musb_read_target_reg_base(i, musb_base);
+
+ musb_write_rxfunaddr(ep_target_regs,
+ musb_context.index_regs[i].rxfunaddr);
+ musb_write_rxhubaddr(ep_target_regs,
+ musb_context.index_regs[i].rxhubaddr);
+ musb_write_rxhubport(ep_target_regs,
+ musb_context.index_regs[i].rxhubport);
+ }
+ }
+
+ musb_writeb(musb_base, MUSB_INDEX, musb_context.index);
+}
+
static int musb_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
*/
}
+ musb_save_context(musb);
+
if (musb->set_clock)
musb->set_clock(musb->clock, 0);
else
else
clk_enable(musb->clock);
+ musb_restore_context(musb);
+
/* for static cmos like DaVinci, register values were preserved
* unless for some reason the whole soc powered down or the USB
* module got reset through the PSC (vs just being disabled).
struct musb_hw_ep;
struct musb_ep;
+/* Helper defines for struct musb->hwvers */
+#define MUSB_HWVERS_MAJOR(x) ((x >> 10) & 0x1f)
+#define MUSB_HWVERS_MINOR(x) (x & 0x3ff)
+#define MUSB_HWVERS_RC 0x8000
+#define MUSB_HWVERS_1300 0x52C
+#define MUSB_HWVERS_1400 0x590
+#define MUSB_HWVERS_1800 0x720
+#define MUSB_HWVERS_1900 0x784
+#define MUSB_HWVERS_2000 0x800
#include "musb_debug.h"
#include "musb_dma.h"
struct clk *clock;
irqreturn_t (*isr)(int, void *);
struct work_struct irq_work;
-#define MUSB_HWVERS_MAJOR(x) ((x >> 10) & 0x1f)
-#define MUSB_HWVERS_MINOR(x) (x & 0x3ff)
-#define MUSB_HWVERS_RC 0x8000
-#define MUSB_HWVERS_1300 0x52C
-#define MUSB_HWVERS_1400 0x590
-#define MUSB_HWVERS_1800 0x720
-#define MUSB_HWVERS_2000 0x800
u16 hwvers;
/* this hub status bit is reserved by USB 2.0 and not seen by usbcore */
unsigned hb_iso_rx:1; /* high bandwidth iso rx? */
unsigned hb_iso_tx:1; /* high bandwidth iso tx? */
+ unsigned dyn_fifo:1; /* dynamic FIFO supported? */
-#ifdef C_MP_TX
- unsigned bulk_split:1;
+ unsigned bulk_split:1;
#define can_bulk_split(musb,type) \
- (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_split)
-#else
-#define can_bulk_split(musb, type) 0
-#endif
+ (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_split)
-#ifdef C_MP_RX
- unsigned bulk_combine:1;
+ unsigned bulk_combine:1;
#define can_bulk_combine(musb,type) \
- (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_combine)
-#else
-#define can_bulk_combine(musb, type) 0
-#endif
+ (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_combine)
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
/* is_suspended means USB B_PERIPHERAL suspend */
#endif
};
+#ifdef CONFIG_PM
+struct musb_csr_regs {
+ /* FIFO registers */
+ u16 txmaxp, txcsr, rxmaxp, rxcsr;
+ u16 rxfifoadd, txfifoadd;
+ u8 txtype, txinterval, rxtype, rxinterval;
+ u8 rxfifosz, txfifosz;
+ u8 txfunaddr, txhubaddr, txhubport;
+ u8 rxfunaddr, rxhubaddr, rxhubport;
+};
+
+struct musb_context_registers {
+
+#if defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP2430)
+ u32 otg_sysconfig, otg_forcestandby;
+#endif
+ u8 power;
+ u16 intrtxe, intrrxe;
+ u8 intrusbe;
+ u16 frame;
+ u8 index, testmode;
+
+ u8 devctl, misc;
+
+ struct musb_csr_regs index_regs[MUSB_C_NUM_EPS];
+};
+
+#if defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP2430)
+extern void musb_platform_save_context(struct musb *musb,
+ struct musb_context_registers *musb_context);
+extern void musb_platform_restore_context(struct musb *musb,
+ struct musb_context_registers *musb_context);
+#else
+#define musb_platform_save_context(m, x) do {} while (0)
+#define musb_platform_restore_context(m, x) do {} while (0)
+#endif
+
+#endif
+
static inline void musb_set_vbus(struct musb *musb, int is_on)
{
musb->board_set_vbus(musb, is_on);
/* REVISIT if can_bulk_split(), use by updating "tmp";
* likewise high bandwidth periodic tx
*/
- musb_writew(regs, MUSB_TXMAXP, tmp);
+ /* Set TXMAXP with the FIFO size of the endpoint
+ * to disable double buffering mode. Currently, It seems that double
+ * buffering has problem if musb RTL revision number < 2.0.
+ */
+ if (musb->hwvers < MUSB_HWVERS_2000)
+ musb_writew(regs, MUSB_TXMAXP, hw_ep->max_packet_sz_tx);
+ else
+ musb_writew(regs, MUSB_TXMAXP, tmp);
csr = MUSB_TXCSR_MODE | MUSB_TXCSR_CLRDATATOG;
if (musb_readw(regs, MUSB_TXCSR)
/* REVISIT if can_bulk_combine() use by updating "tmp"
* likewise high bandwidth periodic rx
*/
- musb_writew(regs, MUSB_RXMAXP, tmp);
+ /* Set RXMAXP with the FIFO size of the endpoint
+ * to disable double buffering mode.
+ */
+ if (musb->hwvers < MUSB_HWVERS_2000)
+ musb_writew(regs, MUSB_RXMAXP, hw_ep->max_packet_sz_rx);
+ else
+ musb_writew(regs, MUSB_RXMAXP, tmp);
/* force shared fifo to OUT-only mode */
if (hw_ep->is_shared_fifo) {
return -EINVAL;
/* driver must be initialized to support peripheral mode */
- if (!musb || !(musb->board_mode == MUSB_OTG
- || musb->board_mode != MUSB_OTG)) {
+ if (!musb) {
DBG(1, "%s, no dev??\n", __func__);
return -ENODEV;
}
musb_writeb(ep->regs, MUSB_RXTYPE, qh->type_reg);
musb_writeb(ep->regs, MUSB_RXINTERVAL, qh->intv_reg);
/* NOTE: bulk combining rewrites high bits of maxpacket */
- musb_writew(ep->regs, MUSB_RXMAXP,
- qh->maxpacket | ((qh->hb_mult - 1) << 11));
+ /* Set RXMAXP with the FIFO size of the endpoint
+ * to disable double buffer mode.
+ */
+ if (musb->hwvers < MUSB_HWVERS_2000)
+ musb_writew(ep->regs, MUSB_RXMAXP, ep->max_packet_sz_rx);
+ else
+ musb_writew(ep->regs, MUSB_RXMAXP,
+ qh->maxpacket | ((qh->hb_mult - 1) << 11));
ep->rx_reinit = 0;
}
int best_end, epnum;
struct musb_hw_ep *hw_ep = NULL;
struct list_head *head = NULL;
+ u8 toggle;
+ u8 txtype;
+ struct urb *urb = next_urb(qh);
/* use fixed hardware for control and bulk */
if (qh->type == USB_ENDPOINT_XFER_CONTROL) {
diff -= (qh->maxpacket * qh->hb_mult);
if (diff >= 0 && best_diff > diff) {
+
+ /*
+ * Mentor controller has a bug in that if we schedule
+ * a BULK Tx transfer on an endpoint that had earlier
+ * handled ISOC then the BULK transfer has to start on
+ * a zero toggle. If the BULK transfer starts on a 1
+ * toggle then this transfer will fail as the mentor
+ * controller starts the Bulk transfer on a 0 toggle
+ * irrespective of the programming of the toggle bits
+ * in the TXCSR register. Check for this condition
+ * while allocating the EP for a Tx Bulk transfer. If
+ * so skip this EP.
+ */
+ hw_ep = musb->endpoints + epnum;
+ toggle = usb_gettoggle(urb->dev, qh->epnum, !is_in);
+ txtype = (musb_readb(hw_ep->regs, MUSB_TXTYPE)
+ >> 4) & 0x3;
+ if (!is_in && (qh->type == USB_ENDPOINT_XFER_BULK) &&
+ toggle && (txtype == USB_ENDPOINT_XFER_ISOC))
+ continue;
+
best_diff = diff;
best_end = epnum;
}
#define MUSB_DEVCTL_HR 0x02
#define MUSB_DEVCTL_SESSION 0x01
+/* MUSB ULPI VBUSCONTROL */
+#define MUSB_ULPI_USE_EXTVBUS 0x01
+#define MUSB_ULPI_USE_EXTVBUSIND 0x02
+
/* TESTMODE */
#define MUSB_TEST_FORCE_HOST 0x80
#define MUSB_TEST_FIFO_ACCESS 0x40
/* REVISIT: vctrl/vstatus: optional vendor utmi+phy register at 0x68 */
#define MUSB_HWVERS 0x6C /* 8 bit */
+#define MUSB_ULPI_BUSCONTROL 0x70 /* 8 bit */
#define MUSB_EPINFO 0x78 /* 8 bit */
#define MUSB_RAMINFO 0x79 /* 8 bit */
musb_writew(mbase, MUSB_RXFIFOADD, c_off);
}
+static inline u8 musb_read_txfifosz(void __iomem *mbase)
+{
+ return musb_readb(mbase, MUSB_TXFIFOSZ);
+}
+
+static inline u16 musb_read_txfifoadd(void __iomem *mbase)
+{
+ return musb_readw(mbase, MUSB_TXFIFOADD);
+}
+
+static inline u8 musb_read_rxfifosz(void __iomem *mbase)
+{
+ return musb_readb(mbase, MUSB_RXFIFOSZ);
+}
+
+static inline u16 musb_read_rxfifoadd(void __iomem *mbase)
+{
+ return musb_readw(mbase, MUSB_RXFIFOADD);
+}
+
static inline u8 musb_read_configdata(void __iomem *mbase)
{
musb_writeb(mbase, MUSB_INDEX, 0);
qh_h_port_reg);
}
+static inline u8 musb_read_rxfunaddr(void __iomem *mbase, u8 epnum)
+{
+ return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXFUNCADDR));
+}
+
+static inline u8 musb_read_rxhubaddr(void __iomem *mbase, u8 epnum)
+{
+ return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBADDR));
+}
+
+static inline u8 musb_read_rxhubport(void __iomem *mbase, u8 epnum)
+{
+ return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBPORT));
+}
+
+static inline u8 musb_read_txfunaddr(void __iomem *mbase, u8 epnum)
+{
+ return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXFUNCADDR));
+}
+
+static inline u8 musb_read_txhubaddr(void __iomem *mbase, u8 epnum)
+{
+ return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBADDR));
+}
+
+static inline u8 musb_read_txhubport(void __iomem *mbase, u8 epnum)
+{
+ return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBPORT));
+}
+
#else /* CONFIG_BLACKFIN */
#define USB_BASE USB_FADDR
{
}
+static inline u8 musb_read_txfifosz(void __iomem *mbase)
+{
+}
+
+static inline u16 musb_read_txfifoadd(void __iomem *mbase)
+{
+}
+
+static inline u8 musb_read_rxfifosz(void __iomem *mbase)
+{
+}
+
+static inline u16 musb_read_rxfifoadd(void __iomem *mbase)
+{
+}
+
static inline u8 musb_read_configdata(void __iomem *mbase)
{
return 0;
static inline u16 musb_read_hwvers(void __iomem *mbase)
{
- return 0;
+ /*
+ * This register is invisible on Blackfin, actually the MUSB
+ * RTL version of Blackfin is 1.9, so just harcode its value.
+ */
+ return MUSB_HWVERS_1900;
}
static inline void __iomem *musb_read_target_reg_base(u8 i, void __iomem *mbase)
{
}
+static inline u8 musb_read_rxfunaddr(void __iomem *mbase, u8 epnum)
+{
+}
+
+static inline u8 musb_read_rxhubaddr(void __iomem *mbase, u8 epnum)
+{
+}
+
+static inline u8 musb_read_rxhubport(void __iomem *mbase, u8 epnum)
+{
+}
+
+static inline u8 musb_read_txfunaddr(void __iomem *mbase, u8 epnum)
+{
+}
+
+static inline u8 musb_read_txhubaddr(void __iomem *mbase, u8 epnum)
+{
+}
+
+static inline void musb_read_txhubport(void __iomem *mbase, u8 epnum)
+{
+}
+
#endif /* CONFIG_BLACKFIN */
#endif /* __MUSB_REGS_H__ */
u8 bchannel;
u8 int_hsdma;
- u32 addr;
+ u32 addr, count;
u16 csr;
spin_lock_irqsave(&musb->lock, flags);
int_hsdma = musb_readb(mbase, MUSB_HSDMA_INTR);
- if (!int_hsdma)
- goto done;
#ifdef CONFIG_BLACKFIN
/* Clear DMA interrupt flags */
musb_writeb(mbase, MUSB_HSDMA_INTR, int_hsdma);
#endif
+ if (!int_hsdma) {
+ DBG(2, "spurious DMA irq\n");
+
+ for (bchannel = 0; bchannel < MUSB_HSDMA_CHANNELS; bchannel++) {
+ musb_channel = (struct musb_dma_channel *)
+ &(controller->channel[bchannel]);
+ channel = &musb_channel->channel;
+ if (channel->status == MUSB_DMA_STATUS_BUSY) {
+ count = musb_read_hsdma_count(mbase, bchannel);
+
+ if (count == 0)
+ int_hsdma |= (1 << bchannel);
+ }
+ }
+
+ DBG(2, "int_hsdma = 0x%x\n", int_hsdma);
+
+ if (!int_hsdma)
+ goto done;
+ }
+
for (bchannel = 0; bchannel < MUSB_HSDMA_CHANNELS; bchannel++) {
if (int_hsdma & (1 << bchannel)) {
musb_channel = (struct musb_dma_channel *)
MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_ADDRESS), \
addr)
+#define musb_read_hsdma_count(mbase, bchannel) \
+ musb_readl(mbase, \
+ MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT))
+
#define musb_write_hsdma_count(mbase, bchannel, len) \
musb_writel(mbase, \
MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT), \
((u16)(((u32) dma_addr >> 16) & 0xFFFF)));
}
+static inline u32 musb_read_hsdma_count(void __iomem *mbase, u8 bchannel)
+{
+ u32 count = musb_readw(mbase,
+ MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_HIGH));
+
+ count = count << 16;
+
+ count |= musb_readw(mbase,
+ MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_LOW));
+
+ return count;
+}
+
static inline void musb_write_hsdma_count(void __iomem *mbase,
u8 bchannel, u32 len)
{
musb_platform_resume(musb);
- l = omap_readl(OTG_SYSCONFIG);
+ l = musb_readl(musb->mregs, OTG_SYSCONFIG);
l &= ~ENABLEWAKEUP; /* disable wakeup */
l &= ~NOSTDBY; /* remove possible nostdby */
l |= SMARTSTDBY; /* enable smart standby */
*/
if (!cpu_is_omap3430())
l |= AUTOIDLE; /* enable auto idle */
- omap_writel(l, OTG_SYSCONFIG);
+ musb_writel(musb->mregs, OTG_SYSCONFIG, l);
- l = omap_readl(OTG_INTERFSEL);
+ l = musb_readl(musb->mregs, OTG_INTERFSEL);
l |= ULPI_12PIN;
- omap_writel(l, OTG_INTERFSEL);
+ musb_writel(musb->mregs, OTG_INTERFSEL, l);
pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, "
"sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n",
- omap_readl(OTG_REVISION), omap_readl(OTG_SYSCONFIG),
- omap_readl(OTG_SYSSTATUS), omap_readl(OTG_INTERFSEL),
- omap_readl(OTG_SIMENABLE));
+ musb_readl(musb->mregs, OTG_REVISION),
+ musb_readl(musb->mregs, OTG_SYSCONFIG),
+ musb_readl(musb->mregs, OTG_SYSSTATUS),
+ musb_readl(musb->mregs, OTG_INTERFSEL),
+ musb_readl(musb->mregs, OTG_SIMENABLE));
omap_vbus_power(musb, musb->board_mode == MUSB_HOST, 1);
return 0;
}
+#ifdef CONFIG_PM
+void musb_platform_save_context(struct musb *musb,
+ struct musb_context_registers *musb_context)
+{
+ musb_context->otg_sysconfig = musb_readl(musb->mregs, OTG_SYSCONFIG);
+ musb_context->otg_forcestandby = musb_readl(musb->mregs, OTG_FORCESTDBY);
+}
+
+void musb_platform_restore_context(struct musb *musb,
+ struct musb_context_registers *musb_context)
+{
+ musb_writel(musb->mregs, OTG_SYSCONFIG, musb_context->otg_sysconfig);
+ musb_writel(musb->mregs, OTG_FORCESTDBY, musb_context->otg_forcestandby);
+}
+#endif
+
int musb_platform_suspend(struct musb *musb)
{
u32 l;
return 0;
/* in any role */
- l = omap_readl(OTG_FORCESTDBY);
+ l = musb_readl(musb->mregs, OTG_FORCESTDBY);
l |= ENABLEFORCE; /* enable MSTANDBY */
- omap_writel(l, OTG_FORCESTDBY);
+ musb_writel(musb->mregs, OTG_FORCESTDBY, l);
- l = omap_readl(OTG_SYSCONFIG);
+ l = musb_readl(musb->mregs, OTG_SYSCONFIG);
l |= ENABLEWAKEUP; /* enable wakeup */
- omap_writel(l, OTG_SYSCONFIG);
+ musb_writel(musb->mregs, OTG_SYSCONFIG, l);
otg_set_suspend(musb->xceiv, 1);
else
clk_enable(musb->clock);
- l = omap_readl(OTG_SYSCONFIG);
+ l = musb_readl(musb->mregs, OTG_SYSCONFIG);
l &= ~ENABLEWAKEUP; /* disable wakeup */
- omap_writel(l, OTG_SYSCONFIG);
+ musb_writel(musb->mregs, OTG_SYSCONFIG, l);
- l = omap_readl(OTG_FORCESTDBY);
+ l = musb_readl(musb->mregs, OTG_FORCESTDBY);
l &= ~ENABLEFORCE; /* disable MSTANDBY */
- omap_writel(l, OTG_FORCESTDBY);
+ musb_writel(musb->mregs, OTG_FORCESTDBY, l);
return 0;
}
#ifndef __MUSB_OMAP243X_H__
#define __MUSB_OMAP243X_H__
-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430)
-#include <mach/hardware.h>
#include <plat/usb.h>
/*
* OMAP2430-specific definitions
*/
-#define MENTOR_BASE_OFFSET 0
-#if defined(CONFIG_ARCH_OMAP2430)
-#define OMAP_HSOTG_BASE (OMAP243X_HS_BASE)
-#elif defined(CONFIG_ARCH_OMAP3430)
-#define OMAP_HSOTG_BASE (OMAP34XX_HSUSB_OTG_BASE)
-#endif
-#define OMAP_HSOTG(offset) (OMAP_HSOTG_BASE + 0x400 + (offset))
-#define OTG_REVISION OMAP_HSOTG(0x0)
-#define OTG_SYSCONFIG OMAP_HSOTG(0x4)
+#define OTG_REVISION 0x400
+
+#define OTG_SYSCONFIG 0x404
# define MIDLEMODE 12 /* bit position */
# define FORCESTDBY (0 << MIDLEMODE)
# define NOSTDBY (1 << MIDLEMODE)
# define SMARTSTDBY (2 << MIDLEMODE)
+
# define SIDLEMODE 3 /* bit position */
# define FORCEIDLE (0 << SIDLEMODE)
# define NOIDLE (1 << SIDLEMODE)
# define SMARTIDLE (2 << SIDLEMODE)
+
# define ENABLEWAKEUP (1 << 2)
# define SOFTRST (1 << 1)
# define AUTOIDLE (1 << 0)
-#define OTG_SYSSTATUS OMAP_HSOTG(0x8)
+
+#define OTG_SYSSTATUS 0x408
# define RESETDONE (1 << 0)
-#define OTG_INTERFSEL OMAP_HSOTG(0xc)
+
+#define OTG_INTERFSEL 0x40c
# define EXTCP (1 << 2)
-# define PHYSEL 0 /* bit position */
+# define PHYSEL 0 /* bit position */
# define UTMI_8BIT (0 << PHYSEL)
# define ULPI_12PIN (1 << PHYSEL)
# define ULPI_8PIN (2 << PHYSEL)
-#define OTG_SIMENABLE OMAP_HSOTG(0x10)
+
+#define OTG_SIMENABLE 0x410
# define TM1 (1 << 0)
-#define OTG_FORCESTDBY OMAP_HSOTG(0x14)
-# define ENABLEFORCE (1 << 0)
-#endif /* CONFIG_ARCH_OMAP2430 */
+#define OTG_FORCESTDBY 0x414
+# define ENABLEFORCE (1 << 0)
#endif /* __MUSB_OMAP243X_H__ */
}
musb->sync = mem->start;
- sync = ioremap(mem->start, mem->end - mem->start + 1);
+ sync = ioremap(mem->start, resource_size(mem));
if (!sync) {
pr_debug("ioremap for sync failed\n");
ret = -ENOMEM;
}
}
- if (!tusb_dma->multichannel && tusb_dma && tusb_dma->ch >= 0)
+ if (tusb_dma && !tusb_dma->multichannel && tusb_dma->ch >= 0)
omap_free_dma(tusb_dma->ch);
kfree(tusb_dma);
#include <linux/i2c/twl.h>
#include <linux/regulator/consumer.h>
#include <linux/err.h>
-
+#include <linux/notifier.h>
/* Register defines */
#define PMBR1 0x0D
#define GPIO_USB_4PIN_ULPI_2430C (3 << 0)
-
-
-enum linkstat {
- USB_LINK_UNKNOWN = 0,
- USB_LINK_NONE,
- USB_LINK_VBUS,
- USB_LINK_ID,
-};
-
struct twl4030_usb {
struct otg_transceiver otg;
struct device *dev;
/*-------------------------------------------------------------------------*/
-static enum linkstat twl4030_usb_linkstat(struct twl4030_usb *twl)
+static enum usb_xceiv_events twl4030_usb_linkstat(struct twl4030_usb *twl)
{
int status;
- int linkstat = USB_LINK_UNKNOWN;
+ int linkstat = USB_EVENT_NONE;
/*
* For ID/VBUS sensing, see manual section 15.4.8 ...
dev_err(twl->dev, "USB link status err %d\n", status);
else if (status & (BIT(7) | BIT(2))) {
if (status & BIT(2))
- linkstat = USB_LINK_ID;
+ linkstat = USB_EVENT_ID;
else
- linkstat = USB_LINK_VBUS;
+ linkstat = USB_EVENT_VBUS;
} else
- linkstat = USB_LINK_NONE;
+ linkstat = USB_EVENT_NONE;
dev_dbg(twl->dev, "HW_CONDITIONS 0x%02x/%d; link %d\n",
status, status, linkstat);
spin_lock_irq(&twl->lock);
twl->linkstat = linkstat;
- if (linkstat == USB_LINK_ID) {
+ if (linkstat == USB_EVENT_ID) {
twl->otg.default_a = true;
twl->otg.state = OTG_STATE_A_IDLE;
} else {
spin_lock_irqsave(&twl->lock, flags);
ret = sprintf(buf, "%s\n",
- (twl->linkstat == USB_LINK_VBUS) ? "on" : "off");
+ (twl->linkstat == USB_EVENT_VBUS) ? "on" : "off");
spin_unlock_irqrestore(&twl->lock, flags);
return ret;
struct twl4030_usb *twl = _twl;
int status;
-#ifdef CONFIG_LOCKDEP
- /* WORKAROUND for lockdep forcing IRQF_DISABLED on us, which
- * we don't want and can't tolerate. Although it might be
- * friendlier not to borrow this thread context...
- */
- local_irq_enable();
-#endif
-
status = twl4030_usb_linkstat(twl);
- if (status != USB_LINK_UNKNOWN) {
-
+ if (status >= 0) {
/* FIXME add a set_power() method so that B-devices can
* configure the charger appropriately. It's not always
* correct to consume VBUS power, and how much current to
* USB_LINK_VBUS state. musb_hdrc won't care until it
* starts to handle softconnect right.
*/
- if (status == USB_LINK_NONE)
+ if (status == USB_EVENT_NONE)
twl4030_phy_suspend(twl, 0);
else
twl4030_phy_resume(twl);
- twl4030charger_usb_en(status == USB_LINK_VBUS);
+ blocking_notifier_call_chain(&twl->otg.notifier, status,
+ twl->otg.gadget);
}
sysfs_notify(&twl->dev->kobj, NULL, "vbus");
if (device_create_file(&pdev->dev, &dev_attr_vbus))
dev_warn(&pdev->dev, "could not create sysfs file\n");
+ BLOCKING_INIT_NOTIFIER_HEAD(&twl->otg.notifier);
+
/* Our job is to use irqs and status from the power module
* to keep the transceiver disabled when nothing's connected.
*
* need both handles, otherwise just one suffices.
*/
twl->irq_enabled = true;
- status = request_irq(twl->irq, twl4030_usb_irq,
+ status = request_threaded_irq(twl->irq, NULL, twl4030_usb_irq,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
"twl4030_usb", twl);
if (status < 0) {
To compile this driver as a module, choose M here: the
module will be called oti6858.
+config USB_SERIAL_QCAUX
+ tristate "USB Qualcomm Auxiliary Serial Port Driver"
+ ---help---
+ Say Y here if you want to use the auxiliary serial ports provided
+ by many modems based on Qualcomm chipsets. These ports often use
+ a proprietary protocol called DM and cannot be used for AT- or
+ PPP-based communication.
+
+ To compile this driver as a module, choose M here: the
+ module will be called moto_modem. If unsure, choose N.
+
config USB_SERIAL_QUALCOMM
tristate "USB Qualcomm Serial modem"
help
To compile this driver as a module, choose M here: the
module will be called opticon.
+config USB_SERIAL_VIVOPAY_SERIAL
+ tristate "USB ViVOpay serial interface driver"
+ help
+ Say Y here if you want to use a ViVOtech ViVOpay USB device.
+
+ To compile this driver as a module, choose M here: the
+ module will be called vivopay-serial.
+
config USB_SERIAL_DEBUG
tristate "USB Debugging Device"
help
obj-$(CONFIG_USB_SERIAL_OPTION) += option.o
obj-$(CONFIG_USB_SERIAL_OTI6858) += oti6858.o
obj-$(CONFIG_USB_SERIAL_PL2303) += pl2303.o
+obj-$(CONFIG_USB_SERIAL_QCAUX) += qcaux.o
obj-$(CONFIG_USB_SERIAL_QUALCOMM) += qcserial.o
obj-$(CONFIG_USB_SERIAL_SAFE) += safe_serial.o
obj-$(CONFIG_USB_SERIAL_SIEMENS_MPI) += siemens_mpi.o
obj-$(CONFIG_USB_SERIAL_VISOR) += visor.o
obj-$(CONFIG_USB_SERIAL_WHITEHEAT) += whiteheat.o
obj-$(CONFIG_USB_SERIAL_XIRCOM) += keyspan_pda.o
+obj-$(CONFIG_USB_SERIAL_VIVOPAY_SERIAL) += vivopay-serial.o
#define DRIVER_DESC "AIRcable USB Driver"
/* ID table that will be registered with USB core */
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(AIRCABLE_VID, AIRCABLE_USB_PID) },
{ },
};
if (status) {
dbg("%s - urb status = %d", __func__, status);
- if (!port->port.count) {
- dbg("%s - port is closed, exiting.", __func__);
- return;
- }
if (status == -EPROTO) {
dbg("%s - caught -EPROTO, resubmitting the urb",
__func__);
}
tty_kref_put(tty);
- /* Schedule the next read _if_ we are still open */
- if (port->port.count) {
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- aircable_read_bulk_callback, port);
-
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result)
- dev_err(&urb->dev->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
- }
-
- return;
+ /* Schedule the next read */
+ usb_fill_bulk_urb(port->read_urb, port->serial->dev,
+ usb_rcvbulkpipe(port->serial->dev,
+ port->bulk_in_endpointAddress),
+ port->read_urb->transfer_buffer,
+ port->read_urb->transfer_buffer_length,
+ aircable_read_bulk_callback, port);
+
+ result = usb_submit_urb(urb, GFP_ATOMIC);
+ if (result && result != -EPERM)
+ dev_err(&urb->dev->dev,
+ "%s - failed resubmitting read urb, error %d\n",
+ __func__, result);
}
/* Based on ftdi_sio.c throttle */
/* usb timeout of 1 second */
#define ARK_TIMEOUT (1*HZ)
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x6547, 0x0232) },
{ USB_DEVICE(0x18ec, 0x3118) }, /* USB to IrDA adapter */
{ },
tty = tty_port_tty_get(&port->port);
if (tty) {
- tty_buffer_request_room(tty, urb->actual_length + 1);
/* overrun is special, not associated with a char */
if (unlikely(lsr & UART_LSR_OE))
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
unsigned int set, unsigned int clear);
-static struct usb_device_id id_table_combined [] = {
+static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(BELKIN_SA_VID, BELKIN_SA_PID) },
{ USB_DEVICE(BELKIN_OLD_VID, BELKIN_OLD_PID) },
{ USB_DEVICE(PERACOM_VID, PERACOM_PID) },
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/serial.h>
+#include <asm/unaligned.h>
#define DEFAULT_BAUD_RATE 9600
#define DEFAULT_TIMEOUT 1000
static int debug;
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x4348, 0x5523) },
{ USB_DEVICE(0x1a86, 0x7523) },
{ },
struct usb_serial_port *port = tty->driver_data;
int r;
uint16_t reg_contents;
- uint8_t break_reg[2];
+ uint8_t *break_reg;
dbg("%s()", __func__);
+ break_reg = kmalloc(2, GFP_KERNEL);
+ if (!break_reg) {
+ dev_err(&port->dev, "%s - kmalloc failed\n", __func__);
+ return;
+ }
+
r = ch341_control_in(port->serial->dev, CH341_REQ_READ_REG,
- ch341_break_reg, 0, break_reg, sizeof(break_reg));
+ ch341_break_reg, 0, break_reg, 2);
if (r < 0) {
- printk(KERN_WARNING "%s: USB control read error whilst getting"
- " break register contents.\n", __FILE__);
- return;
+ dev_err(&port->dev, "%s - USB control read error (%d)\n",
+ __func__, r);
+ goto out;
}
dbg("%s - initial ch341 break register contents - reg1: %x, reg2: %x",
__func__, break_reg[0], break_reg[1]);
}
dbg("%s - New ch341 break register contents - reg1: %x, reg2: %x",
__func__, break_reg[0], break_reg[1]);
- reg_contents = (uint16_t)break_reg[0] | ((uint16_t)break_reg[1] << 8);
+ reg_contents = get_unaligned_le16(break_reg);
r = ch341_control_out(port->serial->dev, CH341_REQ_WRITE_REG,
ch341_break_reg, reg_contents);
if (r < 0)
- printk(KERN_WARNING "%s: USB control write error whilst setting"
- " break register contents.\n", __FILE__);
+ dev_err(&port->dev, "%s - USB control write error (%d)\n",
+ __func__, r);
+out:
+ kfree(break_reg);
}
static int ch341_tiocmset(struct tty_struct *tty, struct file *file,
static int debug;
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */
{ USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
{ USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */
{ USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
{ USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */
{ USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */
+ { USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */
{ USB_DEVICE(0x10C4, 0x81F2) }, /* C1007 HF band RFID controller */
{ USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */
{ USB_DEVICE(0x10C4, 0x822B) }, /* Modem EDGE(GSM) Comander 2 */
{ USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demostration module */
- { USB_DEVICE(0x10c4, 0x8293) }, /* Telegesys ETRX2USB */
+ { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesys ETRX2USB */
{ USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */
{ USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
{ USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */
baud);
if (cp210x_set_config_single(port, CP210X_SET_BAUDDIV,
((BAUD_RATE_GEN_FREQ + baud/2) / baud))) {
- dbg("Baud rate requested not supported by device\n");
+ dbg("Baud rate requested not supported by device");
baud = tty_termios_baud_rate(old_termios);
}
}
static void cyberjack_read_bulk_callback(struct urb *urb);
static void cyberjack_write_bulk_callback(struct urb *urb);
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(CYBERJACK_VENDOR_ID, CYBERJACK_PRODUCT_ID) },
{ } /* Terminating entry */
};
tty = tty_port_tty_get(&port->port);
if (!tty) {
- dbg("%s - ignoring since device not open\n", __func__);
+ dbg("%s - ignoring since device not open", __func__);
return;
}
if (urb->actual_length) {
- tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
}
#include <linux/serial.h>
#include <linux/delay.h>
#include <linux/uaccess.h>
+#include <asm/unaligned.h>
#include "cypress_m8.h"
-#ifdef CONFIG_USB_SERIAL_DEBUG
- static int debug = 1;
-#else
- static int debug;
-#endif
+static int debug;
static int stats;
static int interval;
+static int unstable_bauds;
/*
* Version Information
#define CYPRESS_BUF_SIZE 1024
#define CYPRESS_CLOSING_WAIT (30*HZ)
-static struct usb_device_id id_table_earthmate [] = {
+static const struct usb_device_id id_table_earthmate[] = {
{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB) },
{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) },
{ } /* Terminating entry */
};
-static struct usb_device_id id_table_cyphidcomrs232 [] = {
+static const struct usb_device_id id_table_cyphidcomrs232[] = {
{ USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) },
{ USB_DEVICE(VENDOR_ID_POWERCOM, PRODUCT_ID_UPS) },
{ } /* Terminating entry */
};
-static struct usb_device_id id_table_nokiaca42v2 [] = {
+static const struct usb_device_id id_table_nokiaca42v2[] = {
{ USB_DEVICE(VENDOR_ID_DAZZLE, PRODUCT_ID_CA42) },
{ } /* Terminating entry */
};
-static struct usb_device_id id_table_combined [] = {
+static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB) },
{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) },
{ USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) },
struct cypress_private *priv;
priv = usb_get_serial_port_data(port);
+ if (unstable_bauds)
+ return new_rate;
+
/*
* The general purpose firmware for the Cypress M8 allows for
* a maximum speed of 57600bps (I have no idea whether DeLorme
{
int new_baudrate = 0, retval = 0, tries = 0;
struct cypress_private *priv;
- __u8 feature_buffer[5];
+ u8 *feature_buffer;
+ const unsigned int feature_len = 5;
unsigned long flags;
dbg("%s", __func__);
if (!priv->comm_is_ok)
return -ENODEV;
+ feature_buffer = kcalloc(feature_len, sizeof(u8), GFP_KERNEL);
+ if (!feature_buffer)
+ return -ENOMEM;
+
switch (cypress_request_type) {
case CYPRESS_SET_CONFIG:
- new_baudrate = priv->baud_rate;
/* 0 means 'Hang up' so doesn't change the true bit rate */
- if (baud_rate == 0)
- new_baudrate = priv->baud_rate;
- /* Change of speed ? */
- else if (baud_rate != priv->baud_rate) {
+ new_baudrate = priv->baud_rate;
+ if (baud_rate && baud_rate != priv->baud_rate) {
dbg("%s - baud rate is changing", __func__);
retval = analyze_baud_rate(port, baud_rate);
- if (retval >= 0) {
+ if (retval >= 0) {
new_baudrate = retval;
dbg("%s - New baud rate set to %d",
__func__, new_baudrate);
dbg("%s - baud rate is being sent as %d",
__func__, new_baudrate);
- memset(feature_buffer, 0, sizeof(feature_buffer));
/* fill the feature_buffer with new configuration */
- *((u_int32_t *)feature_buffer) = new_baudrate;
+ put_unaligned_le32(new_baudrate, feature_buffer);
feature_buffer[4] |= data_bits; /* assign data bits in 2 bit space ( max 3 ) */
/* 1 bit gap */
feature_buffer[4] |= (stop_bits << 3); /* assign stop bits in 1 bit space */
HID_REQ_SET_REPORT,
USB_DIR_OUT | USB_RECIP_INTERFACE | USB_TYPE_CLASS,
0x0300, 0, feature_buffer,
- sizeof(feature_buffer), 500);
+ feature_len, 500);
if (tries++ >= 3)
break;
- } while (retval != sizeof(feature_buffer) &&
+ } while (retval != feature_len &&
retval != -ENODEV);
- if (retval != sizeof(feature_buffer)) {
+ if (retval != feature_len) {
dev_err(&port->dev, "%s - failed sending serial "
"line settings - %d\n", __func__, retval);
cypress_set_dead(port);
/* Not implemented for this device,
and if we try to do it we're likely
to crash the hardware. */
- return -ENOTTY;
+ retval = -ENOTTY;
+ goto out;
}
dbg("%s - retreiving serial line settings", __func__);
- /* set initial values in feature buffer */
- memset(feature_buffer, 0, sizeof(feature_buffer));
-
do {
retval = usb_control_msg(port->serial->dev,
usb_rcvctrlpipe(port->serial->dev, 0),
HID_REQ_GET_REPORT,
USB_DIR_IN | USB_RECIP_INTERFACE | USB_TYPE_CLASS,
0x0300, 0, feature_buffer,
- sizeof(feature_buffer), 500);
+ feature_len, 500);
if (tries++ >= 3)
break;
- } while (retval != sizeof(feature_buffer)
+ } while (retval != feature_len
&& retval != -ENODEV);
- if (retval != sizeof(feature_buffer)) {
+ if (retval != feature_len) {
dev_err(&port->dev, "%s - failed to retrieve serial "
"line settings - %d\n", __func__, retval);
cypress_set_dead(port);
- return retval;
+ goto out;
} else {
spin_lock_irqsave(&priv->lock, flags);
/* store the config in one byte, and later
use bit masks to check values */
priv->current_config = feature_buffer[4];
- priv->baud_rate = *((u_int32_t *)feature_buffer);
+ priv->baud_rate = get_unaligned_le32(feature_buffer);
spin_unlock_irqrestore(&priv->lock, flags);
}
}
spin_lock_irqsave(&priv->lock, flags);
++priv->cmd_count;
spin_unlock_irqrestore(&priv->lock, flags);
-
+out:
+ kfree(feature_buffer);
return retval;
} /* cypress_serial_control */
{
struct cypress_private *priv = usb_get_serial_port_data(port);
/* drop dtr and rts */
- priv = usb_get_serial_port_data(port);
spin_lock_irq(&priv->lock);
if (on == 0)
priv->line_control = 0;
spin_unlock_irqrestore(&priv->lock, flags);
/* process read if there is data other than line status */
- if (tty && (bytes > i)) {
- bytes = tty_buffer_request_room(tty, bytes);
- for (; i < bytes ; ++i) {
- dbg("pushing byte number %d - %d - %c", i, data[i],
- data[i]);
- tty_insert_flip_char(tty, data[i], tty_flag);
- }
+ if (tty && bytes > i) {
+ tty_insert_flip_string_fixed_flag(tty, data + i,
+ bytes - i, tty_flag);
tty_flip_buffer_push(tty);
}
continue_read:
tty_kref_put(tty);
- /* Continue trying to always read... unless the port has closed. */
+ /* Continue trying to always read */
- if (port->port.count > 0 && priv->comm_is_ok) {
+ if (priv->comm_is_ok) {
usb_fill_int_urb(port->interrupt_in_urb, port->serial->dev,
usb_rcvintpipe(port->serial->dev,
port->interrupt_in_endpointAddress),
cypress_read_int_callback, port,
priv->read_urb_interval);
result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
- if (result) {
+ if (result && result != -EPERM) {
dev_err(&urb->dev->dev, "%s - failed resubmitting "
"read urb, error %d\n", __func__,
result);
MODULE_PARM_DESC(stats, "Enable statistics or not");
module_param(interval, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(interval, "Overrides interrupt interval");
+module_param(unstable_bauds, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(unstable_bauds, "Allow unstable baud rates");
static int debug;
-static struct usb_device_id id_table_combined [] = {
+static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(DIGI_VENDOR_ID, DIGI_2_ID) },
{ USB_DEVICE(DIGI_VENDOR_ID, DIGI_4_ID) },
{ } /* Terminating entry */
};
-static struct usb_device_id id_table_2 [] = {
+static const struct usb_device_id id_table_2[] = {
{ USB_DEVICE(DIGI_VENDOR_ID, DIGI_2_ID) },
{ } /* Terminating entry */
};
-static struct usb_device_id id_table_4 [] = {
+static const struct usb_device_id id_table_4[] = {
{ USB_DEVICE(DIGI_VENDOR_ID, DIGI_4_ID) },
{ } /* Terminating entry */
};
return;
}
- /* try to send any buffered data on this port, if it is open */
+ /* try to send any buffered data on this port */
spin_lock(&priv->dp_port_lock);
priv->dp_write_urb_in_use = 0;
- if (port->port.count && priv->dp_out_buf_len > 0) {
+ if (priv->dp_out_buf_len > 0) {
*((unsigned char *)(port->write_urb->transfer_buffer))
= (unsigned char)DIGI_CMD_SEND_DATA;
*((unsigned char *)(port->write_urb->transfer_buffer) + 1)
schedule_work(&priv->dp_wakeup_work);
spin_unlock(&priv->dp_port_lock);
- if (ret)
+ if (ret && ret != -EPERM)
dev_err(&port->dev,
"%s: usb_submit_urb failed, ret=%d, port=%d\n",
__func__, ret, priv->dp_port_num);
struct digi_port *priv = usb_get_serial_port_data(port);
struct ktermios not_termios;
- dbg("digi_open: TOP: port=%d, open_count=%d",
- priv->dp_port_num, port->port.count);
+ dbg("digi_open: TOP: port=%d", priv->dp_port_num);
/* be sure the device is started up */
if (digi_startup_device(port->serial) != 0)
unsigned char buf[32];
struct digi_port *priv = usb_get_serial_port_data(port);
- dbg("digi_close: TOP: port=%d, open_count=%d",
- priv->dp_port_num, port->port.count);
+ dbg("digi_close: TOP: port=%d", priv->dp_port_num);
mutex_lock(&port->serial->disc_mutex);
/* if disconnected, just clear flags */
/* continue read */
urb->dev = port->serial->dev;
ret = usb_submit_urb(urb, GFP_ATOMIC);
- if (ret != 0) {
+ if (ret != 0 && ret != -EPERM) {
dev_err(&port->dev,
"%s: failed resubmitting urb, ret=%d, port=%d\n",
__func__, ret, priv->dp_port_num);
int port_status = ((unsigned char *)urb->transfer_buffer)[2];
unsigned char *data = ((unsigned char *)urb->transfer_buffer) + 3;
int flag, throttled;
- int i;
int status = urb->status;
/* do not process callbacks on closed ports */
/* but do continue the read chain */
- if (port->port.count == 0)
+ if (urb->status == -ENOENT)
return 0;
/* short/multiple packet check */
/* data length is len-1 (one byte of len is port_status) */
--len;
-
- len = tty_buffer_request_room(tty, len);
if (len > 0) {
- /* Hot path */
- if (flag == TTY_NORMAL)
- tty_insert_flip_string(tty, data, len);
- else {
- for (i = 0; i < len; i++)
- tty_insert_flip_char(tty,
- data[i], flag);
- }
+ tty_insert_flip_string_fixed_flag(tty, data, len,
+ flag);
tty_flip_buffer_push(tty);
}
}
tty = tty_port_tty_get(&port->port);
rts = 0;
- if (port->port.count)
- rts = tty->termios->c_cflag & CRTSCTS;
+ rts = tty->termios->c_cflag & CRTSCTS;
if (opcode == DIGI_CMD_READ_INPUT_SIGNALS) {
spin_lock(&priv->dp_port_lock);
static void empeg_write_bulk_callback(struct urb *urb);
static void empeg_read_bulk_callback(struct urb *urb);
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(EMPEG_VENDOR_ID, EMPEG_PRODUCT_ID) },
{ } /* Terminating entry */
};
tty = tty_port_tty_get(&port->port);
if (urb->actual_length) {
- tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
bytes_in += urb->actual_length;
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/serial.h>
unsigned int latency; /* latency setting in use */
spinlock_t tx_lock; /* spinlock for transmit state */
- unsigned long tx_bytes;
unsigned long tx_outstanding_bytes;
unsigned long tx_outstanding_urbs;
unsigned short max_packet_size;
+ struct mutex cfg_lock; /* Avoid mess by parallel calls of config ioctl() */
};
/* struct ftdi_sio_quirk is used by devices requiring special attention. */
{ USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
{ USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
+ { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
{ USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
{ USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
{ USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
{ USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
+ { USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
+ { USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
+ { USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) },
+ { USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) },
{ }, /* Optional parameter entry */
{ } /* Terminating entry */
};
.name = "ftdi_sio",
},
.description = "FTDI USB Serial Device",
- .usb_driver = &ftdi_driver ,
+ .usb_driver = &ftdi_driver,
.id_table = id_table_combined,
.num_ports = 1,
.probe = ftdi_sio_probe,
.chars_in_buffer = ftdi_chars_in_buffer,
.read_bulk_callback = ftdi_read_bulk_callback,
.write_bulk_callback = ftdi_write_bulk_callback,
- .tiocmget = ftdi_tiocmget,
- .tiocmset = ftdi_tiocmset,
+ .tiocmget = ftdi_tiocmget,
+ .tiocmset = ftdi_tiocmset,
.ioctl = ftdi_ioctl,
.set_termios = ftdi_set_termios,
.break_ctl = ftdi_break_ctl,
unsigned int clear)
{
struct ftdi_private *priv = usb_get_serial_port_data(port);
- char *buf;
unsigned urb_value;
int rv;
return 0; /* no change */
}
- buf = kmalloc(1, GFP_NOIO);
- if (!buf)
- return -ENOMEM;
-
clear &= ~set; /* 'set' takes precedence over 'clear' */
urb_value = 0;
if (clear & TIOCM_DTR)
FTDI_SIO_SET_MODEM_CTRL_REQUEST,
FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
urb_value, priv->interface,
- buf, 0, WDR_TIMEOUT);
-
- kfree(buf);
+ NULL, 0, WDR_TIMEOUT);
if (rv < 0) {
dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
__func__,
static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
{
struct ftdi_private *priv = usb_get_serial_port_data(port);
- char *buf;
__u16 urb_value;
__u16 urb_index;
__u32 urb_index_value;
int rv;
- buf = kmalloc(1, GFP_NOIO);
- if (!buf)
- return -ENOMEM;
-
urb_index_value = get_ftdi_divisor(tty, port);
urb_value = (__u16)urb_index_value;
urb_index = (__u16)(urb_index_value >> 16);
FTDI_SIO_SET_BAUDRATE_REQUEST,
FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
urb_value, urb_index,
- buf, 0, WDR_SHORT_TIMEOUT);
-
- kfree(buf);
+ NULL, 0, WDR_SHORT_TIMEOUT);
return rv;
}
{
struct ftdi_private *priv = usb_get_serial_port_data(port);
struct usb_device *udev = port->serial->dev;
- char buf[1];
- int rv = 0;
+ int rv;
int l = priv->latency;
if (priv->flags & ASYNC_LOW_LATENCY)
FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
l, priv->interface,
- buf, 0, WDR_TIMEOUT);
-
+ NULL, 0, WDR_TIMEOUT);
if (rv < 0)
dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
return rv;
{
struct ftdi_private *priv = usb_get_serial_port_data(port);
struct usb_device *udev = port->serial->dev;
- unsigned short latency = 0;
- int rv = 0;
-
+ unsigned char *buf;
+ int rv;
dbg("%s", __func__);
+ buf = kmalloc(1, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
rv = usb_control_msg(udev,
usb_rcvctrlpipe(udev, 0),
FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
0, priv->interface,
- (char *) &latency, 1, WDR_TIMEOUT);
-
- if (rv < 0) {
+ buf, 1, WDR_TIMEOUT);
+ if (rv < 0)
dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
- return -EIO;
- }
- return latency;
+ else
+ priv->latency = buf[0];
+
+ kfree(buf);
+
+ return rv;
}
static int get_serial_info(struct usb_serial_port *port,
if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
return -EFAULT;
- lock_kernel();
+ mutex_lock(&priv->cfg_lock);
old_priv = *priv;
/* Do error checking and permission checking */
if (!capable(CAP_SYS_ADMIN)) {
if (((new_serial.flags & ~ASYNC_USR_MASK) !=
(priv->flags & ~ASYNC_USR_MASK))) {
- unlock_kernel();
+ mutex_unlock(&priv->cfg_lock);
return -EPERM;
}
priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
if ((new_serial.baud_base != priv->baud_base) &&
(new_serial.baud_base < 9600)) {
- unlock_kernel();
+ mutex_unlock(&priv->cfg_lock);
return -EINVAL;
}
(priv->flags & ASYNC_SPD_MASK)) ||
(((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
(old_priv.custom_divisor != priv->custom_divisor))) {
- unlock_kernel();
+ mutex_unlock(&priv->cfg_lock);
change_speed(tty, port);
}
else
- unlock_kernel();
+ mutex_unlock(&priv->cfg_lock);
return 0;
} /* set_serial_info */
__func__);
}
} else if (version < 0x200) {
- /* Old device. Assume its the original SIO. */
+ /* Old device. Assume it's the original SIO. */
priv->chip_type = SIO;
priv->baud_base = 12000000 / 16;
priv->write_offset = 1;
} else if (version < 0x400) {
- /* Assume its an FT8U232AM (or FT8U245AM) */
+ /* Assume it's an FT8U232AM (or FT8U245AM) */
/* (It might be a BM because of the iSerialNumber bug,
* but it will still work as an AM device.) */
priv->chip_type = FT8U232AM;
} else if (version < 0x600) {
- /* Assume its an FT232BM (or FT245BM) */
+ /* Assume it's an FT232BM (or FT245BM) */
priv->chip_type = FT232BM;
} else {
- /* Assume its an FT232R */
+ /* Assume it's an FT232R */
priv->chip_type = FT232RL;
}
dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
unsigned num_endpoints;
- int i = 0;
+ int i;
num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
struct usb_serial_port *port = to_usb_serial_port(dev);
struct ftdi_private *priv = usb_get_serial_port_data(port);
int v = simple_strtoul(valbuf, NULL, 10);
- int rv = 0;
+ int rv;
priv->latency = v;
rv = write_latency_timer(port);
struct usb_serial_port *port = to_usb_serial_port(dev);
struct ftdi_private *priv = usb_get_serial_port_data(port);
struct usb_device *udev = port->serial->dev;
- char buf[1];
int v = simple_strtoul(valbuf, NULL, 10);
- int rv = 0;
+ int rv;
dbg("%s: setting event char = %i", __func__, v);
FTDI_SIO_SET_EVENT_CHAR_REQUEST,
FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
v, priv->interface,
- buf, 0, WDR_TIMEOUT);
-
+ NULL, 0, WDR_TIMEOUT);
if (rv < 0) {
dbg("Unable to write event character: %i", rv);
return -EIO;
kref_init(&priv->kref);
spin_lock_init(&priv->tx_lock);
+ mutex_init(&priv->cfg_lock);
init_waitqueue_head(&priv->delta_msr_wait);
- /* This will push the characters through immediately rather
- than queue a task to deliver them */
+
priv->flags = ASYNC_LOW_LATENCY;
if (quirk && quirk->port_probe)
ftdi_determine_type(port);
ftdi_set_max_packet_size(port);
- read_latency_timer(port);
+ if (read_latency_timer(port) < 0)
+ priv->latency = 16;
create_sysfs_attrs(port);
return 0;
}
{
struct usb_device *udev = serial->dev;
int latency = ndi_latency_timer;
- int rv = 0;
- char buf[1];
if (latency == 0)
latency = 1;
dbg("%s setting NDI device latency to %d", __func__, latency);
dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
- rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ /* FIXME: errors are not returned */
+ usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
- latency, 0, buf, 0, WDR_TIMEOUT);
+ latency, 0, NULL, 0, WDR_TIMEOUT);
return 0;
}
urb->transfer_buffer_length,
ftdi_read_bulk_callback, port);
result = usb_submit_urb(urb, mem_flags);
- if (result)
+ if (result && result != -EPERM)
dev_err(&port->dev,
"%s - failed submitting read urb, error %d\n",
__func__, result);
struct usb_device *dev = port->serial->dev;
struct ftdi_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
-
- int result = 0;
- char buf[1]; /* Needed for the usb_control_msg I think */
+ int result;
dbg("%s", __func__);
- spin_lock_irqsave(&priv->tx_lock, flags);
- priv->tx_bytes = 0;
- spin_unlock_irqrestore(&priv->tx_lock, flags);
-
write_latency_timer(port);
/* No error checking for this (will get errors later anyway) */
usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
FTDI_SIO_RESET_SIO,
- priv->interface, buf, 0, WDR_TIMEOUT);
+ priv->interface, NULL, 0, WDR_TIMEOUT);
/* Termios defaults are set by usb_serial_init. We don't change
port->tty->termios - this would lose speed settings, etc.
static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
{
struct ftdi_private *priv = usb_get_serial_port_data(port);
- char buf[1];
mutex_lock(&port->serial->disc_mutex);
if (!port->serial->disconnected) {
usb_sndctrlpipe(port->serial->dev, 0),
FTDI_SIO_SET_FLOW_CTRL_REQUEST,
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
- 0, priv->interface, buf, 0,
+ 0, priv->interface, NULL, 0,
WDR_TIMEOUT) < 0) {
dev_err(&port->dev, "error from flowcontrol urb\n");
}
spin_lock_irqsave(&priv->tx_lock, flags);
if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
spin_unlock_irqrestore(&priv->tx_lock, flags);
- dbg("%s - write limit hit\n", __func__);
+ dbg("%s - write limit hit", __func__);
return 0;
}
priv->tx_outstanding_urbs++;
} else {
spin_lock_irqsave(&priv->tx_lock, flags);
priv->tx_outstanding_bytes += count;
- priv->tx_bytes += count;
spin_unlock_irqrestore(&priv->tx_lock, flags);
}
{
struct usb_serial_port *port = tty->driver_data;
struct ftdi_private *priv = usb_get_serial_port_data(port);
- __u16 urb_value = 0;
- char buf[1];
+ __u16 urb_value;
/* break_state = -1 to turn on break, and 0 to turn off break */
/* see drivers/char/tty_io.c to see it used */
FTDI_SIO_SET_DATA_REQUEST,
FTDI_SIO_SET_DATA_REQUEST_TYPE,
urb_value , priv->interface,
- buf, 0, WDR_TIMEOUT) < 0) {
+ NULL, 0, WDR_TIMEOUT) < 0) {
dev_err(&port->dev, "%s FAILED to enable/disable break state "
"(state was %d)\n", __func__, break_state);
}
struct ktermios *termios = tty->termios;
unsigned int cflag = termios->c_cflag;
__u16 urb_value; /* will hold the new flags */
- char buf[1]; /* Perhaps I should dynamically alloc this? */
/* Added for xon/xoff support */
unsigned int iflag = termios->c_iflag;
}
if (cflag & CSIZE) {
switch (cflag & CSIZE) {
- case CS5: urb_value |= 5; dbg("Setting CS5"); break;
- case CS6: urb_value |= 6; dbg("Setting CS6"); break;
case CS7: urb_value |= 7; dbg("Setting CS7"); break;
case CS8: urb_value |= 8; dbg("Setting CS8"); break;
default:
- dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
+ dev_err(&port->dev, "CSIZE was set but not CS7-CS8\n");
}
}
FTDI_SIO_SET_DATA_REQUEST,
FTDI_SIO_SET_DATA_REQUEST_TYPE,
urb_value , priv->interface,
- buf, 0, WDR_SHORT_TIMEOUT) < 0) {
+ NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
dev_err(&port->dev, "%s FAILED to set "
"databits/stopbits/parity\n", __func__);
}
FTDI_SIO_SET_FLOW_CTRL_REQUEST,
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
0, priv->interface,
- buf, 0, WDR_TIMEOUT) < 0) {
+ NULL, 0, WDR_TIMEOUT) < 0) {
dev_err(&port->dev,
"%s error from disable flowcontrol urb\n",
__func__);
FTDI_SIO_SET_FLOW_CTRL_REQUEST,
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
- buf, 0, WDR_TIMEOUT) < 0) {
+ NULL, 0, WDR_TIMEOUT) < 0) {
dev_err(&port->dev,
"urb failed to set to rts/cts flow control\n");
}
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
urb_value , (FTDI_SIO_XON_XOFF_HS
| priv->interface),
- buf, 0, WDR_TIMEOUT) < 0) {
+ NULL, 0, WDR_TIMEOUT) < 0) {
dev_err(&port->dev, "urb failed to set to "
"xon/xoff flow control\n");
}
FTDI_SIO_SET_FLOW_CTRL_REQUEST,
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
0, priv->interface,
- buf, 0, WDR_TIMEOUT) < 0) {
+ NULL, 0, WDR_TIMEOUT) < 0) {
dev_err(&port->dev,
"urb failed to clear flow control\n");
}
{
struct usb_serial_port *port = tty->driver_data;
struct ftdi_private *priv = usb_get_serial_port_data(port);
- unsigned char buf[2];
+ unsigned char *buf;
+ int len;
int ret;
dbg("%s TIOCMGET", __func__);
+
+ buf = kmalloc(2, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ /*
+ * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
+ * the same format as the data returned from the in point.
+ */
switch (priv->chip_type) {
case SIO:
- /* Request the status from the device */
- ret = usb_control_msg(port->serial->dev,
- usb_rcvctrlpipe(port->serial->dev, 0),
- FTDI_SIO_GET_MODEM_STATUS_REQUEST,
- FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
- 0, 0,
- buf, 1, WDR_TIMEOUT);
- if (ret < 0)
- return ret;
+ len = 1;
break;
case FT8U232AM:
case FT232BM:
case FT232RL:
case FT2232H:
case FT4232H:
- /* the 8U232AM returns a two byte value (the sio is a 1 byte
- value) - in the same format as the data returned from the in
- point */
- ret = usb_control_msg(port->serial->dev,
- usb_rcvctrlpipe(port->serial->dev, 0),
- FTDI_SIO_GET_MODEM_STATUS_REQUEST,
- FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
- 0, priv->interface,
- buf, 2, WDR_TIMEOUT);
- if (ret < 0)
- return ret;
+ len = 2;
break;
default:
- return -EFAULT;
+ ret = -EFAULT;
+ goto out;
}
- return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
+ ret = usb_control_msg(port->serial->dev,
+ usb_rcvctrlpipe(port->serial->dev, 0),
+ FTDI_SIO_GET_MODEM_STATUS_REQUEST,
+ FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
+ 0, priv->interface,
+ buf, len, WDR_TIMEOUT);
+ if (ret < 0)
+ goto out;
+
+ ret = (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
(buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
(buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
(buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
priv->last_dtr_rts;
+out:
+ kfree(buf);
+ return ret;
}
static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
port->throttled = port->throttle_req = 0;
spin_unlock_irqrestore(&port->lock, flags);
- /* Resubmit urb if throttled and open. */
- if (was_throttled && test_bit(ASYNCB_INITIALIZED, &port->port.flags))
+ if (was_throttled)
ftdi_submit_read_urb(port, GFP_KERNEL);
}
#define FTDI_SIO_SET_FLOW_CTRL 2 /* Set flow control register */
#define FTDI_SIO_SET_BAUD_RATE 3 /* Set baud rate */
#define FTDI_SIO_SET_DATA 4 /* Set the data characteristics of the port */
-#define FTDI_SIO_GET_MODEM_STATUS 5 /* Retrieve current value of modern status register */
+#define FTDI_SIO_GET_MODEM_STATUS 5 /* Retrieve current value of modem status register */
#define FTDI_SIO_SET_EVENT_CHAR 6 /* Set the event character */
#define FTDI_SIO_SET_ERROR_CHAR 7 /* Set the error character */
#define FTDI_SIO_SET_LATENCY_TIMER 9 /* Set the latency timer */
#define FTDI_SIO_GET_LATENCY_TIMER 10 /* Get the latency timer */
-/* Interface indicies for FT2232, FT2232H and FT4232H devices*/
+/* Interface indices for FT2232, FT2232H and FT4232H devices */
#define INTERFACE_A 1
#define INTERFACE_B 2
#define INTERFACE_C 3
* BmRequestType: 0100 0000b
* bRequest: FTDI_SIO_SET_FLOW_CTRL
* wValue: Xoff/Xon
- * wIndex: Protocol/Port - hIndex is protocl / lIndex is port
+ * wIndex: Protocol/Port - hIndex is protocol / lIndex is port
* wLength: 0
* Data: None
*
#define FTDI_8U232AM_ALT_PID 0x6006 /* FTDI's alternate PID for above */
#define FTDI_8U2232C_PID 0x6010 /* Dual channel device */
#define FTDI_4232H_PID 0x6011 /* Quad channel hi-speed device */
-#define FTDI_SIO_PID 0x8372 /* Product Id SIO application of 8U100AX */
+#define FTDI_SIO_PID 0x8372 /* Product Id SIO application of 8U100AX */
#define FTDI_232RL_PID 0xFBFA /* Product ID for FT232RL */
#define LMI_LM3S_DEVEL_BOARD_PID 0xbcd8
#define LMI_LM3S_EVAL_BOARD_PID 0xbcd9
-#define FTDI_TURTELIZER_PID 0xBDC8 /* JTAG/RS-232 adapter by egnite GmBH */
+#define FTDI_TURTELIZER_PID 0xBDC8 /* JTAG/RS-232 adapter by egnite GmbH */
/* OpenDCC (www.opendcc.de) product id */
#define FTDI_OPENDCC_PID 0xBFD8
#define FTDI_ELV_TFD128_PID 0xE0EC /* ELV Temperatur-Feuchte-Datenlogger TFD 128 */
#define FTDI_ELV_FM3RX_PID 0xE0ED /* ELV Messwertuebertragung FM3 RX */
#define FTDI_ELV_WS777_PID 0xE0EE /* Conrad WS 777 */
-#define FTDI_ELV_EM1010PC_PID 0xE0EF /* Engery monitor EM 1010 PC */
+#define FTDI_ELV_EM1010PC_PID 0xE0EF /* Energy monitor EM 1010 PC */
#define FTDI_ELV_CSI8_PID 0xE0F0 /* Computer-Schalt-Interface (CSI 8) */
#define FTDI_ELV_EM1000DL_PID 0xE0F1 /* PC-Datenlogger fuer Energiemonitor (EM 1000 DL) */
#define FTDI_ELV_PCK100_PID 0xE0F2 /* PC-Kabeltester (PCK 100) */
* drivers, or possibly the Comedi drivers in some cases. */
#define FTDI_ELV_CLI7000_PID 0xFB59 /* Computer-Light-Interface (CLI 7000) */
#define FTDI_ELV_PPS7330_PID 0xFB5C /* Processor-Power-Supply (PPS 7330) */
-#define FTDI_ELV_TFM100_PID 0xFB5D /* Temperartur-Feuchte Messgeraet (TFM 100) */
-#define FTDI_ELV_UDF77_PID 0xFB5E /* USB DCF Funkurh (UDF 77) */
+#define FTDI_ELV_TFM100_PID 0xFB5D /* Temperatur-Feuchte-Messgeraet (TFM 100) */
+#define FTDI_ELV_UDF77_PID 0xFB5E /* USB DCF Funkuhr (UDF 77) */
#define FTDI_ELV_UIO88_PID 0xFB5F /* USB-I/O Interface (UIO 88) */
/*
/*
* 4N-GALAXY.DE PIDs for CAN-USB, USB-RS232, USB-RS422, USB-RS485,
- * USB-TTY activ, USB-TTY passiv. Some PIDs are used by several devices
+ * USB-TTY aktiv, USB-TTY passiv. Some PIDs are used by several devices
* and I'm not entirely sure which are used by which.
*/
#define FTDI_4N_GALAXY_DE_1_PID 0xF3C0
* Linx Technologies product ids
*/
#define LINX_SDMUSBQSS_PID 0xF448 /* Linx SDM-USB-QS-S */
-#define LINX_MASTERDEVEL2_PID 0xF449 /* Linx Master Development 2.0 */
-#define LINX_FUTURE_0_PID 0xF44A /* Linx future device */
-#define LINX_FUTURE_1_PID 0xF44B /* Linx future device */
-#define LINX_FUTURE_2_PID 0xF44C /* Linx future device */
+#define LINX_MASTERDEVEL2_PID 0xF449 /* Linx Master Development 2.0 */
+#define LINX_FUTURE_0_PID 0xF44A /* Linx future device */
+#define LINX_FUTURE_1_PID 0xF44B /* Linx future device */
+#define LINX_FUTURE_2_PID 0xF44C /* Linx future device */
/*
* Oceanic product ids
#define RATOC_VENDOR_ID 0x0584
#define RATOC_PRODUCT_ID_USB60F 0xb020
+/*
+ * Contec products (http://www.contec.com)
+ * Submitted by Daniel Sangorrin
+ */
+#define CONTEC_VID 0x06CE /* Vendor ID */
+#define CONTEC_COM1USBH_PID 0x8311 /* COM-1(USB)H */
+
/*
* Definitions for B&B Electronics products.
*/
#define FALCOM_TWIST_PID 0x0001 /* Falcom Twist USB GPRS modem */
#define FALCOM_SAMBA_PID 0x0005 /* Falcom Samba USB GPRS modem */
-/* Larsen and Brusgaard AltiTrack/USBtrack */
+/* Larsen and Brusgaard AltiTrack/USBtrack */
#define LARSENBRUSGAARD_VID 0x0FD8
#define LB_ALTITRACK_PID 0x0001
#define ALTI2_N3_PID 0x6001 /* Neptune 3 */
/*
- * Dresden Elektronic Sensor Terminal Board
+ * Dresden Elektronik Sensor Terminal Board
*/
#define DE_VID 0x1cf1 /* Vendor ID */
#define STB_PID 0x0001 /* Sensor Terminal Board */
#define EVO_8U232AM_PID 0x02FF /* Evolution robotics RCM2 (FT232AM)*/
#define EVO_HYBRID_PID 0x0302 /* Evolution robotics RCM4 PID (FT232BM)*/
#define EVO_RCM4_PID 0x0303 /* Evolution robotics RCM4 PID */
+
+/*
+ * MJS Gadgets HD Radio / XM Radio / Sirius Radio interfaces (using VID 0x0403)
+ */
+#define MJSG_GENERIC_PID 0x9378
+#define MJSG_SR_RADIO_PID 0x9379
+#define MJSG_XM_RADIO_PID 0x937A
+#define MJSG_HD_RADIO_PID 0x937C
static int debug;
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x1404, 0xcddc) },
{ },
};
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
/* the same device id seems to be used by all
usb enabled GPS devices */
{ USB_DEVICE(GARMIN_VENDOR_ID, 3) },
usb_serial_debug_data(debug, &port->dev,
__func__, actual_length, data);
- tty_buffer_request_room(tty, actual_length);
tty_insert_flip_string(tty, data, actual_length);
tty_flip_buffer_push(tty);
}
#include <linux/usb/serial.h>
#include <linux/uaccess.h>
#include <linux/kfifo.h>
+#include <linux/serial.h>
static int debug;
/* we want to look at all devices, as the vendor/product id can change
* depending on the command line argument */
-static struct usb_device_id generic_serial_ids[] = {
+static const struct usb_device_id generic_serial_ids[] = {
{.driver_info = 42},
{}
};
if (port->urbs_in_flight >
port->serial->type->max_in_flight_urbs) {
spin_unlock_irqrestore(&port->lock, flags);
- dbg("%s - write limit hit\n", __func__);
+ dbg("%s - write limit hit", __func__);
return bwrite;
}
port->tx_bytes_flight += towrite;
for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i];
- if (!port->port.count)
+ if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags))
continue;
if (port->read_urb) {
#define HP_VENDOR_ID 0x03f0
#define HP49GP_PRODUCT_ID 0x0121
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(HP_VENDOR_ID, HP49GP_PRODUCT_ID) },
{ } /* Terminating entry */
};
release_firmware(fw);
}
-
-/************************************************************************
- * *
- * Get string descriptor from device *
- * *
- ************************************************************************/
-static int get_string(struct usb_device *dev, int Id, char *string, int buflen)
-{
- struct usb_string_descriptor StringDesc;
- struct usb_string_descriptor *pStringDesc;
-
- dbg("%s - USB String ID = %d", __func__, Id);
-
- if (!usb_get_descriptor(dev, USB_DT_STRING, Id,
- &StringDesc, sizeof(StringDesc)))
- return 0;
-
- pStringDesc = kmalloc(StringDesc.bLength, GFP_KERNEL);
- if (!pStringDesc)
- return 0;
-
- if (!usb_get_descriptor(dev, USB_DT_STRING, Id,
- pStringDesc, StringDesc.bLength)) {
- kfree(pStringDesc);
- return 0;
- }
-
- unicode_to_ascii(string, buflen,
- pStringDesc->wData, pStringDesc->bLength/2);
-
- kfree(pStringDesc);
- dbg("%s - USB String %s", __func__, string);
- return strlen(string);
-}
-
-
#if 0
/************************************************************************
*
return;
case IOSP_EXT_STATUS_RX_CHECK_RSP:
- dbg("%s ========== Port %u CHECK_RSP Sequence = %02x =============\n", __func__, edge_serial->rxPort, byte3);
+ dbg("%s ========== Port %u CHECK_RSP Sequence = %02x =============", __func__, edge_serial->rxPort, byte3);
/* Port->RxCheckRsp = true; */
return;
}
break;
default:
- dbg("%s - Unrecognized IOSP status code %u\n", __func__, code);
+ dbg("%s - Unrecognized IOSP status code %u", __func__, code);
break;
}
return;
{
int cnt;
- do {
- cnt = tty_buffer_request_room(tty, length);
- if (cnt < length) {
- dev_err(dev, "%s - dropping data, %d bytes lost\n",
- __func__, length - cnt);
- if (cnt == 0)
- break;
- }
- tty_insert_flip_string(tty, data, cnt);
- data += cnt;
- length -= cnt;
- } while (length > 0);
+ cnt = tty_insert_flip_string(tty, data, length);
+ if (cnt < length) {
+ dev_err(dev, "%s - dropping data, %d bytes lost\n",
+ __func__, length - cnt);
+ }
+ data += cnt;
+ length -= cnt;
tty_flip_buffer_push(tty);
}
*divisor = custom;
- dbg("%s - Baud %d = %d\n", __func__, baudrate, custom);
+ dbg("%s - Baud %d = %d", __func__, baudrate, custom);
return 0;
}
break;
case EDGE_DOWNLOAD_FILE_NONE:
- dbg ("No download file specified, skipping download\n");
+ dbg("No download file specified, skipping download");
return;
default:
usb_set_serial_data(serial, edge_serial);
/* get the name for the device from the device */
- i = get_string(dev, dev->descriptor.iManufacturer,
+ i = usb_string(dev, dev->descriptor.iManufacturer,
&edge_serial->name[0], MAX_NAME_LEN+1);
+ if (i < 0)
+ i = 0;
edge_serial->name[i++] = ' ';
- get_string(dev, dev->descriptor.iProduct,
+ usb_string(dev, dev->descriptor.iProduct,
&edge_serial->name[i], MAX_NAME_LEN+2 - i);
dev_info(&serial->dev->dev, "%s detected\n", edge_serial->name);
#ifndef IO_TABLES_H
#define IO_TABLES_H
-static struct usb_device_id edgeport_2port_id_table [] = {
+static const struct usb_device_id edgeport_2port_id_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_2) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_2I) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_421) },
{ }
};
-static struct usb_device_id edgeport_4port_id_table [] = {
+static const struct usb_device_id edgeport_4port_id_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_4) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_RAPIDPORT_4) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_4T) },
{ }
};
-static struct usb_device_id edgeport_8port_id_table [] = {
+static const struct usb_device_id edgeport_8port_id_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_8) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_16_DUAL_CPU) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_8I) },
{ }
};
-static struct usb_device_id Epic_port_id_table [] = {
+static const struct usb_device_id Epic_port_id_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_NCR, NCR_DEVICE_ID_EPIC_0202) },
{ USB_DEVICE(USB_VENDOR_ID_NCR, NCR_DEVICE_ID_EPIC_0203) },
{ USB_DEVICE(USB_VENDOR_ID_NCR, NCR_DEVICE_ID_EPIC_0310) },
};
/* Devices that this driver supports */
-static struct usb_device_id id_table_combined [] = {
+static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_4) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_RAPIDPORT_4) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_EDGEPORT_4T) },
/* Devices that this driver supports */
-static struct usb_device_id edgeport_1port_id_table [] = {
+static const struct usb_device_id edgeport_1port_id_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) },
{ }
};
-static struct usb_device_id edgeport_2port_id_table [] = {
+static const struct usb_device_id edgeport_2port_id_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) },
};
/* Devices that this driver supports */
-static struct usb_device_id id_table_combined [] = {
+static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) },
{ USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) },
{
int status = 0;
int i;
- __u8 temp;
+ u8 *temp;
/* Must do a read before write */
if (!serial->TiReadI2C) {
- status = read_boot_mem(serial, 0, 1, &temp);
+ temp = kmalloc(1, GFP_KERNEL);
+ if (!temp) {
+ dev_err(&serial->serial->dev->dev,
+ "%s - out of memory\n", __func__);
+ return -ENOMEM;
+ }
+ status = read_boot_mem(serial, 0, 1, temp);
+ kfree(temp);
if (status)
return status;
}
static int i2c_type_bootmode(struct edgeport_serial *serial)
{
int status;
- __u8 data;
+ u8 *data;
+
+ data = kmalloc(1, GFP_KERNEL);
+ if (!data) {
+ dev_err(&serial->serial->dev->dev,
+ "%s - out of memory\n", __func__);
+ return -ENOMEM;
+ }
/* Try to read type 2 */
status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
- DTK_ADDR_SPACE_I2C_TYPE_II, 0, &data, 0x01);
+ DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01);
if (status)
dbg("%s - read 2 status error = %d", __func__, status);
else
- dbg("%s - read 2 data = 0x%x", __func__, data);
- if ((!status) && (data == UMP5152 || data == UMP3410)) {
+ dbg("%s - read 2 data = 0x%x", __func__, *data);
+ if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
dbg("%s - ROM_TYPE_II", __func__);
serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
- return 0;
+ goto out;
}
/* Try to read type 3 */
status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
- DTK_ADDR_SPACE_I2C_TYPE_III, 0, &data, 0x01);
+ DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01);
if (status)
dbg("%s - read 3 status error = %d", __func__, status);
else
- dbg("%s - read 2 data = 0x%x", __func__, data);
- if ((!status) && (data == UMP5152 || data == UMP3410)) {
+ dbg("%s - read 2 data = 0x%x", __func__, *data);
+ if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
dbg("%s - ROM_TYPE_III", __func__);
serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III;
- return 0;
+ goto out;
}
dbg("%s - Unknown", __func__);
serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
- return -ENODEV;
+ status = -ENODEV;
+out:
+ kfree(data);
+ return status;
}
static int bulk_xfer(struct usb_serial *serial, void *buffer,
I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc);
if (start_address != 0) {
struct ti_i2c_firmware_rec *firmware_version;
- __u8 record;
+ u8 *record;
dbg("%s - Found Type FIRMWARE (Type 2) record",
__func__);
OperationalMajorVersion,
OperationalMinorVersion);
+ record = kmalloc(1, GFP_KERNEL);
+ if (!record) {
+ dev_err(dev, "%s - out of memory.\n",
+ __func__);
+ kfree(firmware_version);
+ kfree(rom_desc);
+ kfree(ti_manuf_desc);
+ return -ENOMEM;
+ }
/* In order to update the I2C firmware we must
* change the type 2 record to type 0xF2. This
* will force the UMP to come up in Boot Mode.
* firmware will update the record type from
* 0xf2 to 0x02.
*/
- record = I2C_DESC_TYPE_FIRMWARE_BLANK;
+ *record = I2C_DESC_TYPE_FIRMWARE_BLANK;
/* Change the I2C Firmware record type to
0xf2 to trigger an update */
status = write_rom(serial, start_address,
- sizeof(record), &record);
+ sizeof(*record), record);
if (status) {
+ kfree(record);
kfree(firmware_version);
kfree(rom_desc);
kfree(ti_manuf_desc);
*/
status = read_rom(serial,
start_address,
- sizeof(record),
- &record);
+ sizeof(*record),
+ record);
if (status) {
+ kfree(record);
kfree(firmware_version);
kfree(rom_desc);
kfree(ti_manuf_desc);
return status;
}
- if (record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
+ if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
dev_err(dev,
"%s - error resetting device\n",
__func__);
+ kfree(record);
kfree(firmware_version);
kfree(rom_desc);
kfree(ti_manuf_desc);
__func__, status);
/* return an error on purpose. */
+ kfree(record);
kfree(firmware_version);
kfree(rom_desc);
kfree(ti_manuf_desc);
case TIUMP_INTERRUPT_CODE_MSR: /* MSR */
/* Copy MSR from UMP */
msr = data[1];
- dbg("%s - ===== Port %u MSR Status = %02x ======\n",
+ dbg("%s - ===== Port %u MSR Status = %02x ======",
__func__, port_number, msr);
handle_new_msr(edge_port, msr);
break;
{
int queued;
- tty_buffer_request_room(tty, length);
queued = tty_insert_flip_string(tty, data, length);
if (queued < length)
dev_err(dev, "%s - dropping data, %d bytes lost\n",
tty = tty_port_tty_get(&port->port);
if (tty && urb->actual_length) {
- tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
bytes_in += urb->actual_length;
#define IPW_WANTS_TO_SEND 0x30
-static struct usb_device_id usb_ipw_ids[] = {
+static const struct usb_device_id usb_ipw_ids[] = {
{ USB_DEVICE(IPW_VID, IPW_PID) },
{ },
};
tty = tty_port_tty_get(&port->port);
if (tty && urb->actual_length) {
- tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
}
static u8 ir_xbof;
static u8 ir_add_bof;
-static struct usb_device_id ir_id_table[] = {
+static const struct usb_device_id ir_id_table[] = {
{ USB_DEVICE(0x050f, 0x0180) }, /* KC Technology, KC-180 */
{ USB_DEVICE(0x08e9, 0x0100) }, /* XTNDAccess */
{ USB_DEVICE(0x09c4, 0x0011) }, /* ACTiSys ACT-IR2000U */
dbg("%s - port %d", __func__, port->number);
- if (!port->port.count) {
- dbg("%s - port closed.", __func__);
- return;
- }
-
switch (status) {
case 0: /* Successful */
/*
usb_serial_debug_data(debug, &port->dev, __func__,
urb->actual_length, data);
tty = tty_port_tty_get(&port->port);
- if (tty_buffer_request_room(tty, urb->actual_length - 1)) {
- tty_insert_flip_string(tty, data+1, urb->actual_length - 1);
- tty_flip_buffer_push(tty);
- }
+ tty_insert_flip_string(tty, data+1, urb->actual_length - 1);
+ tty_flip_buffer_push(tty);
tty_kref_put(tty);
/*
#define DRIVER_VERSION "v0.11"
#define DRIVER_DESC "Infinity USB Unlimited Phoenix driver"
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
{USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)},
{} /* Terminating entry */
};
/* Resubmit urb so we continue receiving */
urb->dev = port->serial->dev;
- if (port->port.count) {
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err != 0)
- dbg("%s - resubmit read urb failed. (%d)",
- __func__, err);
- }
- return;
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err != 0)
+ dbg("%s - resubmit read urb failed. (%d)", __func__, err);
}
/* Outdat handling is common for all devices */
p_priv = usb_get_serial_port_data(port);
dbg("%s - urb %d", __func__, urb == p_priv->out_urbs[1]);
- if (port->port.count)
- usb_serial_port_softint(port);
+ usb_serial_port_softint(port);
}
static void usa26_inack_callback(struct urb *urb)
/* Resubmit urb so we continue receiving */
urb->dev = port->serial->dev;
- if (port->port.count) {
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err != 0)
- dbg("%s - resubmit read urb failed. (%d)",
- __func__, err);
- }
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err != 0)
+ dbg("%s - resubmit read urb failed. (%d)",
+ __func__, err);
p_priv->in_flip ^= 1;
urb = p_priv->in_urbs[p_priv->in_flip];
/* Resubmit urb so we continue receiving */
urb->dev = port->serial->dev;
- if (port->port.count) {
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err != 0)
- dbg("%s - resubmit read urb failed. (%d)",
- __func__, err);
- }
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err != 0)
+ dbg("%s - resubmit read urb failed. (%d)", __func__, err);
}
static void usa49wg_indat_callback(struct urb *urb)
/* no error on any byte */
i++;
for (x = 1; x < len ; ++x)
- if (port->port.count)
- tty_insert_flip_char(tty,
- data[i++], 0);
- else
- i++;
+ tty_insert_flip_char(tty, data[i++], 0);
} else {
/*
* some bytes had errors, every byte has status
if (stat & RXERROR_PARITY)
flag |= TTY_PARITY;
/* XXX should handle break (0x10) */
- if (port->port.count)
- tty_insert_flip_char(tty,
+ tty_insert_flip_char(tty,
data[i+1], flag);
i += 2;
}
}
- if (port->port.count)
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(tty);
tty_kref_put(tty);
}
}
/* Resubmit urb so we continue receiving */
urb->dev = port->serial->dev;
- if (port->port.count) {
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err != 0)
- dbg("%s - resubmit read urb failed. (%d)",
- __func__, err);
- }
- return;
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err != 0)
+ dbg("%s - resubmit read urb failed. (%d)", __func__, err);
}
msg.portEnabled = 0;
/* Sending intermediate configs */
else {
- if (port->port.count)
- msg.portEnabled = 1;
+ msg.portEnabled = 1;
msg.txBreak = (p_priv->break_on);
}
NULL,
};
-static struct usb_device_id keyspan_ids_combined[] = {
+static const struct usb_device_id keyspan_ids_combined[] = {
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) },
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) },
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_pre_product_id) },
};
/* usb_device_id table for the pre-firmware download keyspan devices */
-static struct usb_device_id keyspan_pre_ids[] = {
+static const struct usb_device_id keyspan_pre_ids[] = {
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) },
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) },
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_pre_product_id) },
{ } /* Terminating entry */
};
-static struct usb_device_id keyspan_1port_ids[] = {
+static const struct usb_device_id keyspan_1port_ids[] = {
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_product_id) },
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_product_id) },
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_product_id) },
{ } /* Terminating entry */
};
-static struct usb_device_id keyspan_2port_ids[] = {
+static const struct usb_device_id keyspan_2port_ids[] = {
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
{ } /* Terminating entry */
};
-static struct usb_device_id keyspan_4port_ids[] = {
+static const struct usb_device_id keyspan_4port_ids[] = {
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id) },
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
{ USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)},
#define ENTREGRA_VENDOR_ID 0x1645
#define ENTREGRA_FAKE_ID 0x8093
-static struct usb_device_id id_table_combined [] = {
+static const struct usb_device_id id_table_combined[] = {
#ifdef KEYSPAN
{ USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_FAKE_ID) },
#endif
.no_dynamic_id = 1,
};
-static struct usb_device_id id_table_std [] = {
+static const struct usb_device_id id_table_std[] = {
{ USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) },
{ } /* Terminating entry */
};
#ifdef KEYSPAN
-static struct usb_device_id id_table_fake [] = {
+static const struct usb_device_id id_table_fake[] = {
{ USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_FAKE_ID) },
{ } /* Terminating entry */
};
#endif
#ifdef XIRCOM
-static struct usb_device_id id_table_fake_xircom [] = {
+static const struct usb_device_id id_table_fake_xircom[] = {
{ USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
{ USB_DEVICE(ENTREGRA_VENDOR_ID, ENTREGRA_FAKE_ID) },
{ }
unsigned char *value)
{
int rc;
- unsigned char data;
+ u8 *data;
+
+ data = kmalloc(1, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
3, /* get pins */
USB_TYPE_VENDOR|USB_RECIP_INTERFACE|USB_DIR_IN,
- 0, 0, &data, 1, 2000);
+ 0, 0, data, 1, 2000);
if (rc >= 0)
- *value = data;
+ *value = *data;
+
+ kfree(data);
return rc;
}
device how much room it really has. This is done only on
scheduler time, since usb_control_msg() sleeps. */
if (count > priv->tx_room && !in_interrupt()) {
- unsigned char room;
+ u8 *room;
+
+ room = kmalloc(1, GFP_KERNEL);
+ if (!room) {
+ rc = -ENOMEM;
+ goto exit;
+ }
+
rc = usb_control_msg(serial->dev,
usb_rcvctrlpipe(serial->dev, 0),
6, /* write_room */
| USB_DIR_IN,
0, /* value: 0 means "remaining room" */
0, /* index */
- &room,
+ room,
1,
2000);
+ if (rc > 0) {
+ dbg(" roomquery says %d", *room);
+ priv->tx_room = *room;
+ }
+ kfree(room);
if (rc < 0) {
dbg(" roomquery failed");
goto exit;
rc = -EIO; /* device didn't return any data */
goto exit;
}
- dbg(" roomquery says %d", room);
- priv->tx_room = room;
}
if (count > priv->tx_room) {
/* we're about to completely fill the Tx buffer, so
struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
- unsigned char room;
+ u8 *room;
int rc = 0;
struct keyspan_pda_private *priv;
/* find out how much room is in the Tx ring */
+ room = kmalloc(1, GFP_KERNEL);
+ if (!room)
+ return -ENOMEM;
+
rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
6, /* write_room */
USB_TYPE_VENDOR | USB_RECIP_INTERFACE
| USB_DIR_IN,
0, /* value */
0, /* index */
- &room,
+ room,
1,
2000);
if (rc < 0) {
goto error;
}
priv = usb_get_serial_port_data(port);
- priv->tx_room = room;
- priv->tx_throttled = room ? 0 : 1;
+ priv->tx_room = *room;
+ priv->tx_throttled = *room ? 0 : 1;
/*Start reading from the device*/
port->interrupt_in_urb->dev = serial->dev;
dbg("%s - usb_submit_urb(read int) failed", __func__);
goto error;
}
-
error:
+ kfree(room);
return rc;
}
static void keyspan_pda_close(struct usb_serial_port *port)
/*
* All of the device info needed for the KLSI converters.
*/
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(PALMCONNECT_VID, PALMCONNECT_PID) },
{ USB_DEVICE(KLSI_VID, KLSI_KL5KUSB105D_PID) },
{ } /* Terminating entry */
unsigned long *line_state_p)
{
int rc;
- __u8 status_buf[KLSI_STATUSBUF_LEN] = { -1, -1};
+ u8 *status_buf;
__u16 status;
dev_info(&port->serial->dev->dev, "sending SIO Poll request\n");
+
+ status_buf = kmalloc(KLSI_STATUSBUF_LEN, GFP_KERNEL);
+ if (!status_buf) {
+ dev_err(&port->dev, "%s - out of memory for status buffer.\n",
+ __func__);
+ return -ENOMEM;
+ }
+ status_buf[0] = 0xff;
+ status_buf[1] = 0xff;
rc = usb_control_msg(port->serial->dev,
usb_rcvctrlpipe(port->serial->dev, 0),
KL5KUSB105A_SIO_POLL,
*line_state_p = klsi_105_status2linestate(status);
}
+
+ kfree(status_buf);
return rc;
}
int rc;
int i;
unsigned long line_state;
- struct klsi_105_port_settings cfg;
+ struct klsi_105_port_settings *cfg;
unsigned long flags;
dbg("%s port %d", __func__, port->number);
* Then read the modem line control and store values in
* priv->line_state.
*/
- cfg.pktlen = 5;
- cfg.baudrate = kl5kusb105a_sio_b9600;
- cfg.databits = kl5kusb105a_dtb_8;
- cfg.unknown1 = 0;
- cfg.unknown2 = 1;
- klsi_105_chg_port_settings(port, &cfg);
+ cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
+ if (!cfg) {
+ dev_err(&port->dev, "%s - out of memory for config buffer.\n",
+ __func__);
+ return -ENOMEM;
+ }
+ cfg->pktlen = 5;
+ cfg->baudrate = kl5kusb105a_sio_b9600;
+ cfg->databits = kl5kusb105a_dtb_8;
+ cfg->unknown1 = 0;
+ cfg->unknown2 = 1;
+ klsi_105_chg_port_settings(port, cfg);
/* set up termios structure */
spin_lock_irqsave(&priv->lock, flags);
priv->termios.c_lflag = tty->termios->c_lflag;
for (i = 0; i < NCCS; i++)
priv->termios.c_cc[i] = tty->termios->c_cc[i];
- priv->cfg.pktlen = cfg.pktlen;
- priv->cfg.baudrate = cfg.baudrate;
- priv->cfg.databits = cfg.databits;
- priv->cfg.unknown1 = cfg.unknown1;
- priv->cfg.unknown2 = cfg.unknown2;
+ priv->cfg.pktlen = cfg->pktlen;
+ priv->cfg.baudrate = cfg->baudrate;
+ priv->cfg.databits = cfg->databits;
+ priv->cfg.unknown1 = cfg->unknown1;
+ priv->cfg.unknown2 = cfg->unknown2;
spin_unlock_irqrestore(&priv->lock, flags);
/* READ_ON and urb submission */
retval = rc;
exit:
+ kfree(cfg);
return retval;
} /* klsi_105_open */
bytes_sent = urb->actual_length - 2;
}
- tty_buffer_request_room(tty, bytes_sent);
tty_insert_flip_string(tty, data + 2, bytes_sent);
tty_flip_buffer_push(tty);
tty_kref_put(tty);
unsigned int old_iflag = old_termios->c_iflag;
unsigned int cflag = tty->termios->c_cflag;
unsigned int old_cflag = old_termios->c_cflag;
- struct klsi_105_port_settings cfg;
+ struct klsi_105_port_settings *cfg;
unsigned long flags;
speed_t baud;
+ cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
+ if (!cfg) {
+ dev_err(&port->dev, "%s - out of memory for config buffer.\n",
+ __func__);
+ return;
+ }
+
/* lock while we are modifying the settings */
spin_lock_irqsave(&priv->lock, flags);
case CS5:
dbg("%s - 5 bits/byte not supported", __func__);
spin_unlock_irqrestore(&priv->lock, flags);
- return ;
+ goto err;
case CS6:
dbg("%s - 6 bits/byte not supported", __func__);
spin_unlock_irqrestore(&priv->lock, flags);
- return ;
+ goto err;
case CS7:
priv->cfg.databits = kl5kusb105a_dtb_7;
break;
#endif
;
}
- memcpy(&cfg, &priv->cfg, sizeof(cfg));
+ memcpy(cfg, &priv->cfg, sizeof(*cfg));
spin_unlock_irqrestore(&priv->lock, flags);
/* now commit changes to device */
- klsi_105_chg_port_settings(port, &cfg);
+ klsi_105_chg_port_settings(port, cfg);
+err:
+ kfree(cfg);
} /* klsi_105_set_termios */
struct usb_serial_port *port, struct ktermios *old);
static void kobil_init_termios(struct tty_struct *tty);
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
*/
/* END DEBUG */
- tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
}
unsigned short urb_val = 0;
int c_cflag = tty->termios->c_cflag;
speed_t speed;
- void *settings;
priv = usb_get_serial_port_data(port);
if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
}
urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
SUSBCR_SPASB_1StopBit;
-
- settings = kzalloc(50, GFP_KERNEL);
- if (!settings)
- return;
-
- sprintf(settings, "%d ", speed);
-
if (c_cflag & PARENB) {
- if (c_cflag & PARODD) {
+ if (c_cflag & PARODD)
urb_val |= SUSBCR_SPASB_OddParity;
- strcat(settings, "Odd Parity");
- } else {
+ else
urb_val |= SUSBCR_SPASB_EvenParity;
- strcat(settings, "Even Parity");
- }
- } else {
+ } else
urb_val |= SUSBCR_SPASB_NoParity;
- strcat(settings, "No Parity");
- }
tty->termios->c_cflag &= ~CMSPAR;
tty_encode_baud_rate(tty, speed, speed);
USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
urb_val,
0,
- settings,
+ NULL,
0,
KOBIL_TIMEOUT
);
- kfree(settings);
}
static int kobil_ioctl(struct tty_struct *tty, struct file *file,
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
+#include <asm/unaligned.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include "mct_u232.h"
/*
* All of the device info needed for the MCT USB-RS232 converter.
*/
-static struct usb_device_id id_table_combined [] = {
+static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(MCT_U232_VID, MCT_U232_PID) },
{ USB_DEVICE(MCT_U232_VID, MCT_U232_SITECOM_PID) },
{ USB_DEVICE(MCT_U232_VID, MCT_U232_DU_H3SP_PID) },
static int mct_u232_set_baud_rate(struct tty_struct *tty,
struct usb_serial *serial, struct usb_serial_port *port, speed_t value)
{
- __le32 divisor;
+ unsigned int divisor;
int rc;
- unsigned char zero_byte = 0;
+ unsigned char *buf;
unsigned char cts_enable_byte = 0;
speed_t speed;
- divisor = cpu_to_le32(mct_u232_calculate_baud_rate(serial, value,
- &speed));
+ buf = kmalloc(MCT_U232_MAX_SIZE, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+ divisor = mct_u232_calculate_baud_rate(serial, value, &speed);
+ put_unaligned_le32(cpu_to_le32(divisor), buf);
rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
MCT_U232_SET_BAUD_RATE_REQUEST,
MCT_U232_SET_REQUEST_TYPE,
- 0, 0, &divisor, MCT_U232_SET_BAUD_RATE_SIZE,
+ 0, 0, buf, MCT_U232_SET_BAUD_RATE_SIZE,
WDR_TIMEOUT);
if (rc < 0) /*FIXME: What value speed results */
dev_err(&port->dev, "Set BAUD RATE %d failed (error = %d)\n",
a device which is not asserting 'CTS'.
*/
+ buf[0] = 0;
rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
MCT_U232_SET_UNKNOWN1_REQUEST,
MCT_U232_SET_REQUEST_TYPE,
- 0, 0, &zero_byte, MCT_U232_SET_UNKNOWN1_SIZE,
+ 0, 0, buf, MCT_U232_SET_UNKNOWN1_SIZE,
WDR_TIMEOUT);
if (rc < 0)
dev_err(&port->dev, "Sending USB device request code %d "
dbg("set_baud_rate: send second control message, data = %02X",
cts_enable_byte);
+ buf[0] = cts_enable_byte;
rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
MCT_U232_SET_CTS_REQUEST,
MCT_U232_SET_REQUEST_TYPE,
- 0, 0, &cts_enable_byte, MCT_U232_SET_CTS_SIZE,
+ 0, 0, buf, MCT_U232_SET_CTS_SIZE,
WDR_TIMEOUT);
if (rc < 0)
dev_err(&port->dev, "Sending USB device request code %d "
"failed (error = %d)\n", MCT_U232_SET_CTS_REQUEST, rc);
+ kfree(buf);
return rc;
} /* mct_u232_set_baud_rate */
static int mct_u232_set_line_ctrl(struct usb_serial *serial, unsigned char lcr)
{
int rc;
+ unsigned char *buf;
+
+ buf = kmalloc(MCT_U232_MAX_SIZE, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ buf[0] = lcr;
rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
MCT_U232_SET_LINE_CTRL_REQUEST,
MCT_U232_SET_REQUEST_TYPE,
- 0, 0, &lcr, MCT_U232_SET_LINE_CTRL_SIZE,
+ 0, 0, buf, MCT_U232_SET_LINE_CTRL_SIZE,
WDR_TIMEOUT);
if (rc < 0)
dev_err(&serial->dev->dev,
"Set LINE CTRL 0x%x failed (error = %d)\n", lcr, rc);
dbg("set_line_ctrl: 0x%x", lcr);
+ kfree(buf);
return rc;
} /* mct_u232_set_line_ctrl */
unsigned int control_state)
{
int rc;
- unsigned char mcr = MCT_U232_MCR_NONE;
+ unsigned char mcr;
+ unsigned char *buf;
+
+ buf = kmalloc(MCT_U232_MAX_SIZE, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+ mcr = MCT_U232_MCR_NONE;
if (control_state & TIOCM_DTR)
mcr |= MCT_U232_MCR_DTR;
if (control_state & TIOCM_RTS)
mcr |= MCT_U232_MCR_RTS;
+ buf[0] = mcr;
rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
MCT_U232_SET_MODEM_CTRL_REQUEST,
MCT_U232_SET_REQUEST_TYPE,
- 0, 0, &mcr, MCT_U232_SET_MODEM_CTRL_SIZE,
+ 0, 0, buf, MCT_U232_SET_MODEM_CTRL_SIZE,
WDR_TIMEOUT);
if (rc < 0)
dev_err(&serial->dev->dev,
"Set MODEM CTRL 0x%x failed (error = %d)\n", mcr, rc);
dbg("set_modem_ctrl: state=0x%x ==> mcr=0x%x", control_state, mcr);
+ kfree(buf);
return rc;
} /* mct_u232_set_modem_ctrl */
unsigned char *msr)
{
int rc;
+ unsigned char *buf;
+
+ buf = kmalloc(MCT_U232_MAX_SIZE, GFP_KERNEL);
+ if (buf == NULL) {
+ *msr = 0;
+ return -ENOMEM;
+ }
rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
MCT_U232_GET_MODEM_STAT_REQUEST,
MCT_U232_GET_REQUEST_TYPE,
- 0, 0, msr, MCT_U232_GET_MODEM_STAT_SIZE,
+ 0, 0, buf, MCT_U232_GET_MODEM_STAT_SIZE,
WDR_TIMEOUT);
if (rc < 0) {
dev_err(&serial->dev->dev,
"Get MODEM STATus failed (error = %d)\n", rc);
*msr = 0;
+ } else {
+ *msr = buf[0];
}
dbg("get_modem_stat: 0x%x", *msr);
+ kfree(buf);
return rc;
} /* mct_u232_get_modem_stat */
#define MCT_U232_SET_CTS_REQUEST 12
#define MCT_U232_SET_CTS_SIZE 1
+#define MCT_U232_MAX_SIZE 4 /* of MCT_XXX_SIZE */
+
/*
* Baud rate (divisor)
* Actually, there are two of them, MCT website calls them "Philips solution"
static int debug;
+static struct usb_serial_driver moschip7720_2port_driver;
+
#define USB_VENDOR_ID_MOSCHIP 0x9710
#define MOSCHIP_DEVICE_ID_7720 0x7720
#define MOSCHIP_DEVICE_ID_7715 0x7715
-static struct usb_device_id moschip_port_id_table[] = {
+static const struct usb_device_id moschip_port_id_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7720) },
+ { USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7715) },
{ } /* terminating entry */
};
MODULE_DEVICE_TABLE(usb, moschip_port_id_table);
__u8 sp1;
__u8 sp2;
- dbg("%s", " : Entering\n");
+ dbg(" : Entering");
switch (status) {
case 0:
return;
}
+/*
+ * mos7715_interrupt_callback
+ * this is the 7715's callback function for when we have received data on
+ * the interrupt endpoint.
+ */
+static void mos7715_interrupt_callback(struct urb *urb)
+{
+ int result;
+ int length;
+ int status = urb->status;
+ __u8 *data;
+ __u8 iir;
+
+ switch (status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d", __func__,
+ status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d", __func__,
+ status);
+ goto exit;
+ }
+
+ length = urb->actual_length;
+ data = urb->transfer_buffer;
+
+ /* Structure of data from 7715 device:
+ * Byte 1: IIR serial Port
+ * Byte 2: unused
+ * Byte 2: DSR parallel port
+ * Byte 4: FIFO status for both */
+
+ if (unlikely(length != 4)) {
+ dbg("Wrong data !!!");
+ return;
+ }
+
+ iir = data[0];
+ if (!(iir & 0x01)) { /* serial port interrupt pending */
+ switch (iir & 0x0f) {
+ case SERIAL_IIR_RLS:
+ dbg("Serial Port: Receiver status error or address "
+ "bit detected in 9-bit mode\n");
+ break;
+ case SERIAL_IIR_CTI:
+ dbg("Serial Port: Receiver time out");
+ break;
+ case SERIAL_IIR_MS:
+ dbg("Serial Port: Modem status change");
+ break;
+ }
+ }
+
+exit:
+ result = usb_submit_urb(urb, GFP_ATOMIC);
+ if (result)
+ dev_err(&urb->dev->dev,
+ "%s - Error %d submitting control urb\n",
+ __func__, result);
+ return;
+}
+
/*
* mos7720_bulk_in_callback
* this is the callback function for when we have received data on the
mos7720_port = urb->context;
if (!mos7720_port) {
- dbg("%s", "NULL mos7720_port pointer \n");
+ dbg("NULL mos7720_port pointer");
return ;
}
tty = tty_port_tty_get(&port->port);
if (tty && urb->actual_length) {
- tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
}
* this function will be used for sending command to device
*/
static int send_mos_cmd(struct usb_serial *serial, __u8 request, __u16 value,
- __u16 index, void *data)
+ __u16 index, u8 *data)
{
int status;
- unsigned int pipe;
+ u8 *buf;
u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
- __u8 requesttype;
- __u16 size = 0x0000;
if (value < MOS_MAX_PORT) {
if (product == MOSCHIP_DEVICE_ID_7715)
- value = value*0x100+0x100;
+ value = 0x0200; /* identifies the 7715's serial port */
else
value = value*0x100+0x200;
} else {
}
if (request == MOS_WRITE) {
- request = (__u8)MOS_WRITE;
- requesttype = (__u8)0x40;
- value = value + (__u16)*((unsigned char *)data);
- data = NULL;
- pipe = usb_sndctrlpipe(serial->dev, 0);
+ value = value + *data;
+ status = usb_control_msg(serial->dev,
+ usb_sndctrlpipe(serial->dev, 0), MOS_WRITE,
+ 0x40, value, index, NULL, 0, MOS_WDR_TIMEOUT);
} else {
- request = (__u8)MOS_READ;
- requesttype = (__u8)0xC0;
- size = 0x01;
- pipe = usb_rcvctrlpipe(serial->dev, 0);
+ buf = kmalloc(1, GFP_KERNEL);
+ if (!buf) {
+ status = -ENOMEM;
+ goto out;
+ }
+ status = usb_control_msg(serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0), MOS_READ,
+ 0xc0, value, index, buf, 1, MOS_WDR_TIMEOUT);
+ *data = *buf;
+ kfree(buf);
}
-
- status = usb_control_msg(serial->dev, pipe, request, requesttype,
- value, index, data, size, MOS_WDR_TIMEOUT);
-
+out:
if (status < 0)
- dbg("Command Write failed Value %x index %x\n", value, index);
+ dbg("Command Write failed Value %x index %x", value, index);
return status;
}
+
+/*
+ * mos77xx_probe
+ * this function installs the appropriate read interrupt endpoint callback
+ * depending on whether the device is a 7720 or 7715, thus avoiding costly
+ * run-time checks in the high-frequency callback routine itself.
+ */
+static int mos77xx_probe(struct usb_serial *serial,
+ const struct usb_device_id *id)
+{
+ if (id->idProduct == MOSCHIP_DEVICE_ID_7715)
+ moschip7720_2port_driver.read_int_callback =
+ mos7715_interrupt_callback;
+ else
+ moschip7720_2port_driver.read_int_callback =
+ mos7720_interrupt_callback;
+
+ return 0;
+}
+
+static int mos77xx_calc_num_ports(struct usb_serial *serial)
+{
+ u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
+ if (product == MOSCHIP_DEVICE_ID_7715)
+ return 1;
+
+ return 2;
+}
+
static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct usb_serial *serial;
*/
port_number = port->number - port->serial->minor;
send_mos_cmd(port->serial, MOS_READ, port_number, UART_LSR, &data);
- dbg("SS::%p LSR:%x\n", mos7720_port, data);
+ dbg("SS::%p LSR:%x", mos7720_port, data);
dbg("Check:Sending Command ..........");
struct moschip_port *mos7720_port;
int status;
- dbg("%s- port %d\n", __func__, port->number);
+ dbg("%s- port %d", __func__, port->number);
mos7720_port = usb_get_serial_port_data(port);
return;
}
- dbg("%s\n", "setting termios - ASPIRE");
+ dbg("setting termios - ASPIRE");
cflag = tty->termios->c_cflag;
change_port_settings(tty, mos7720_port, old_termios);
if (!port->read_urb) {
- dbg("%s", "URB KILLED !!!!!\n");
+ dbg("URB KILLED !!!!!");
return;
}
struct usb_device *dev;
int i;
char data;
+ u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
dbg("%s: Entering ..........", __func__);
usb_set_serial_data(serial, mos7720_serial);
+ /*
+ * The 7715 uses the first bulk in/out endpoint pair for the parallel
+ * port, and the second for the serial port. Because the usbserial core
+ * assumes both pairs are serial ports, we must engage in a bit of
+ * subterfuge and swap the pointers for ports 0 and 1 in order to make
+ * port 0 point to the serial port. However, both moschip devices use a
+ * single interrupt-in endpoint for both ports (as mentioned a little
+ * further down), and this endpoint was assigned to port 0. So after
+ * the swap, we must copy the interrupt endpoint elements from port 1
+ * (as newly assigned) to port 0, and null out port 1 pointers.
+ */
+ if (product == MOSCHIP_DEVICE_ID_7715) {
+ struct usb_serial_port *tmp = serial->port[0];
+ serial->port[0] = serial->port[1];
+ serial->port[1] = tmp;
+ serial->port[0]->interrupt_in_urb = tmp->interrupt_in_urb;
+ serial->port[0]->interrupt_in_buffer = tmp->interrupt_in_buffer;
+ serial->port[0]->interrupt_in_endpointAddress =
+ tmp->interrupt_in_endpointAddress;
+ serial->port[1]->interrupt_in_urb = NULL;
+ serial->port[1]->interrupt_in_buffer = NULL;
+ }
+
/* we set up the pointers to the endpoints in the mos7720_open *
* function, as the structures aren't created yet. */
/* Initialize all port interrupt end point to port 0 int
* endpoint. Our device has only one interrupt endpoint
- * comman to all ports */
+ * common to all ports */
serial->port[i]->interrupt_in_endpointAddress =
serial->port[0]->interrupt_in_endpointAddress;
.description = "Moschip 2 port adapter",
.usb_driver = &usb_driver,
.id_table = moschip_port_id_table,
- .num_ports = 2,
+ .calc_num_ports = mos77xx_calc_num_ports,
.open = mos7720_open,
.close = mos7720_close,
.throttle = mos7720_throttle,
.unthrottle = mos7720_unthrottle,
+ .probe = mos77xx_probe,
.attach = mos7720_startup,
.release = mos7720_release,
.ioctl = mos7720_ioctl,
.chars_in_buffer = mos7720_chars_in_buffer,
.break_ctl = mos7720_break,
.read_bulk_callback = mos7720_bulk_in_callback,
- .read_int_callback = mos7720_interrupt_callback,
+ .read_int_callback = NULL /* dynamically assigned in probe() */
};
static int __init moschip7720_init(void)
#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */
-static struct usb_device_id moschip_port_id_table[] = {
+static const struct usb_device_id moschip_port_id_table[] = {
{USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
{USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
{USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2)},
{} /* terminating entry */
};
-static __devinitdata struct usb_device_id moschip_id_table_combined[] = {
+static const struct usb_device_id moschip_id_table_combined[] __devinitconst = {
{USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
{USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
{USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2)},
{
struct usb_device *dev = port->serial->dev;
int ret = 0;
+ u8 *buf;
+
+ buf = kmalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
- MCS_RD_RTYPE, 0, reg, val, VENDOR_READ_LENGTH,
+ MCS_RD_RTYPE, 0, reg, buf, VENDOR_READ_LENGTH,
MOS_WDR_TIMEOUT);
+ *val = buf[0];
dbg("mos7840_get_reg_sync offset is %x, return val %x", reg, *val);
- *val = (*val) & 0x00ff;
+
+ kfree(buf);
return ret;
}
struct usb_device *dev = port->serial->dev;
int ret = 0;
__u16 Wval;
+ u8 *buf;
+
+ buf = kmalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
/* dbg("application number is %4x",
(((__u16)port->number - (__u16)(port->serial->minor))+1)<<8); */
}
}
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
- MCS_RD_RTYPE, Wval, reg, val, VENDOR_READ_LENGTH,
+ MCS_RD_RTYPE, Wval, reg, buf, VENDOR_READ_LENGTH,
MOS_WDR_TIMEOUT);
- *val = (*val) & 0x00ff;
+ *val = buf[0];
+
+ kfree(buf);
return ret;
}
if (urb->actual_length) {
tty = tty_port_tty_get(&mos7840_port->port->port);
if (tty) {
- tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
dbg(" %s ", data);
tty_flip_buffer_push(tty);
#include <linux/usb.h>
#include <linux/usb/serial.h>
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x05c6, 0x3197) }, /* unknown Motorola phone */
{ USB_DEVICE(0x0c44, 0x0022) }, /* unknown Mororola phone */
{ USB_DEVICE(0x22b8, 0x2a64) }, /* Motorola KRZR K1m */
static int debug;
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x0a99, 0x0001) }, /* Talon Technology device */
{ },
};
tty = tty_port_tty_get(&port->port);
if (tty && urb->actual_length) {
- tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
}
static void omninet_release(struct usb_serial *serial);
static int omninet_attach(struct usb_serial *serial);
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(ZYXEL_VENDOR_ID, ZYXEL_OMNINET_ID) },
{ USB_DEVICE(ZYXEL_VENDOR_ID, BT_IGNITIONPRO_ID) },
{ } /* Terminating entry */
if (debug && header->oh_xxx != 0x30) {
if (urb->actual_length) {
- printk(KERN_DEBUG __FILE__
- ": omninet_read %d: ", header->oh_len);
+ printk(KERN_DEBUG "%s: omninet_read %d: ",
+ __FILE__, header->oh_len);
for (i = 0; i < (header->oh_len +
OMNINET_HEADERLEN); i++)
printk("%.2x ", data[i]);
struct usb_serial_port *port = urb->context;
int status = urb->status;
- dbg("%s - port %0x\n", __func__, port->number);
+ dbg("%s - port %0x", __func__, port->number);
port->write_urb_busy = 0;
if (status) {
static int debug;
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x065a, 0x0009) },
{ },
};
int status = urb->status;
struct tty_struct *tty;
int result;
- int available_room = 0;
int data_length;
dbg("%s - port %d", __func__, port->number);
/* real data, send it to the tty layer */
tty = tty_port_tty_get(&port->port);
if (tty) {
- available_room = tty_buffer_request_room(tty,
- data_length);
- if (available_room) {
- tty_insert_flip_string(tty, data,
- available_room);
- tty_flip_buffer_push(tty);
- }
+ tty_insert_flip_string(tty, data,
+ data_length);
+ tty_flip_buffer_push(tty);
tty_kref_put(tty);
}
} else {
spin_lock_irqsave(&priv->lock, flags);
if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - write limit hit\n", __func__);
+ dbg("%s - write limit hit", __func__);
return 0;
}
priv->outstanding_urbs++;
spin_lock_irqsave(&priv->lock, flags);
if (priv->outstanding_urbs > URB_UPPER_LIMIT * 2 / 3) {
spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - write limit hit\n", __func__);
+ dbg("%s - write limit hit", __func__);
return 0;
}
spin_unlock_irqrestore(&priv->lock, flags);
#define AIRPLUS_VENDOR_ID 0x1011
#define AIRPLUS_PRODUCT_MCD650 0x3198
+/* Longcheer/Longsung vendor ID; makes whitelabel devices that
+ * many other vendors like 4G Systems, Alcatel, ChinaBird,
+ * Mobidata, etc sell under their own brand names.
+ */
+#define LONGCHEER_VENDOR_ID 0x1c9e
+
/* 4G Systems products */
-#define FOUR_G_SYSTEMS_VENDOR_ID 0x1c9e
+/* This is the 4G XS Stick W14 a.k.a. Mobilcom Debitel Surf-Stick *
+ * It seems to contain a Qualcomm QSC6240/6290 chipset */
#define FOUR_G_SYSTEMS_PRODUCT_W14 0x9603
/* Haier products */
#define HAIER_VENDOR_ID 0x201e
#define HAIER_PRODUCT_CE100 0x2009
-static struct usb_device_id option_ids[] = {
+/* some devices interfaces need special handling due to a number of reasons */
+enum option_blacklist_reason {
+ OPTION_BLACKLIST_NONE = 0,
+ OPTION_BLACKLIST_SENDSETUP = 1,
+ OPTION_BLACKLIST_RESERVED_IF = 2
+};
+
+struct option_blacklist_info {
+ const u32 infolen; /* number of interface numbers on blacklist */
+ const u8 *ifaceinfo; /* pointer to the array holding the numbers */
+ enum option_blacklist_reason reason;
+};
+
+static const u8 four_g_w14_no_sendsetup[] = { 0, 1 };
+static const struct option_blacklist_info four_g_w14_blacklist = {
+ .infolen = ARRAY_SIZE(four_g_w14_no_sendsetup),
+ .ifaceinfo = four_g_w14_no_sendsetup,
+ .reason = OPTION_BLACKLIST_SENDSETUP
+};
+
+static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S) },
{ USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) },
{ USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) },
- { USB_DEVICE(FOUR_G_SYSTEMS_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14) },
+ { USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14),
+ .driver_info = (kernel_ulong_t)&four_g_w14_blacklist
+ },
{ USB_DEVICE(HAIER_VENDOR_ID, HAIER_PRODUCT_CE100) },
{ } /* Terminating entry */
};
spinlock_t susp_lock;
unsigned int suspended:1;
int in_flight;
+ struct option_blacklist_info *blacklist_info;
};
struct option_port_private {
if (!data)
return -ENOMEM;
spin_lock_init(&data->susp_lock);
+ data->blacklist_info = (struct option_blacklist_info*) id->driver_info;
return 0;
}
+static enum option_blacklist_reason is_blacklisted(const u8 ifnum,
+ const struct option_blacklist_info *blacklist)
+{
+ const u8 *info;
+ int i;
+
+ if (blacklist) {
+ info = blacklist->ifaceinfo;
+
+ for (i = 0; i < blacklist->infolen; i++) {
+ if (info[i] == ifnum)
+ return blacklist->reason;
+ }
+ }
+ return OPTION_BLACKLIST_NONE;
+}
+
static void option_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
} else {
tty = tty_port_tty_get(&port->port);
if (urb->actual_length) {
- tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
} else
tty_kref_put(tty);
/* Resubmit urb so we continue receiving */
- if (port->port.count && status != -ESHUTDOWN) {
+ if (status != -ESHUTDOWN) {
err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err)
+ if (err && err != -EPERM)
printk(KERN_ERR "%s: resubmit read urb failed. "
"(%d)", __func__, err);
else
(struct usb_ctrlrequest *)urb->transfer_buffer;
if (!req_pkt) {
- dbg("%s: NULL req_pkt\n", __func__);
+ dbg("%s: NULL req_pkt", __func__);
return;
}
if ((req_pkt->bRequestType == 0xA1) &&
static int option_send_setup(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
+ struct option_intf_private *intfdata =
+ (struct option_intf_private *) serial->private;
struct option_port_private *portdata;
int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
int val = 0;
dbg("%s", __func__);
+ if (is_blacklisted(ifNum, intfdata->blacklist_info) ==
+ OPTION_BLACKLIST_SENDSETUP) {
+ dbg("No send_setup on blacklisted interface #%d\n", ifNum);
+ return -EIO;
+ }
+
portdata = usb_get_serial_port_data(port);
if (portdata->dtr_state)
for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i];
if (!port->interrupt_in_urb) {
- dbg("%s: No interrupt URB for port %d\n", __func__, i);
+ dbg("%s: No interrupt URB for port %d", __func__, i);
continue;
}
err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
#define OTI6858_AUTHOR "Tomasz Michal Lukaszewski <FIXME@FIXME>"
#define OTI6858_VERSION "0.1"
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(OTI6858_VENDOR_ID, OTI6858_PRODUCT_ID) },
{ }
};
struct usb_serial_port *port = priv->port;
int count = 0, result;
unsigned long flags;
- unsigned char allow;
+ u8 *allow;
dbg("%s(port = %d)", __func__, port->number);
count = port->bulk_out_size;
if (count != 0) {
+ allow = kmalloc(1, GFP_KERNEL);
+ if (!allow) {
+ dev_err(&port->dev, "%s(): kmalloc failed\n",
+ __func__);
+ return;
+ }
result = usb_control_msg(port->serial->dev,
usb_rcvctrlpipe(port->serial->dev, 0),
OTI6858_REQ_T_CHECK_TXBUFF,
OTI6858_REQ_CHECK_TXBUFF,
- count, 0, &allow, 1, 100);
- if (result != 1 || allow != 0)
+ count, 0, allow, 1, 100);
+ if (result != 1 || *allow != 0)
count = 0;
+ kfree(allow);
}
if (count == 0) {
usb_clear_halt(serial->dev, port->write_urb->pipe);
usb_clear_halt(serial->dev, port->read_urb->pipe);
- if (port->port.count != 1)
- return 0;
-
buf = kmalloc(OTI6858_CTRL_PKT_SIZE, GFP_KERNEL);
if (buf == NULL) {
dev_err(&port->dev, "%s(): out of memory!\n", __func__);
spin_unlock_irqrestore(&priv->lock, flags);
if (status != 0) {
- if (!port->port.count) {
- dbg("%s(): port is closed, exiting", __func__);
- return;
- }
/*
if (status == -EPROTO) {
* PL2303 mysteriously fails with -EPROTO reschedule
}
tty_kref_put(tty);
- /* schedule the interrupt urb if we are still open */
- if (port->port.count != 0) {
- port->interrupt_in_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
- if (result != 0) {
- dev_err(&port->dev, "%s(): usb_submit_urb() failed,"
- " error %d\n", __func__, result);
- }
+ /* schedule the interrupt urb */
+ port->interrupt_in_urb->dev = port->serial->dev;
+ result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+ if (result != 0 && result != -EPERM) {
+ dev_err(&port->dev, "%s(): usb_submit_urb() failed,"
+ " error %d\n", __func__, result);
}
}
char *buf_put;
};
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_DCU11) },
port->write_urb->transfer_buffer);
port->write_urb->transfer_buffer_length = count;
- port->write_urb->dev = port->serial->dev;
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result) {
dev_err(&port->dev, "%s - failed submitting write urb,"
pl2303_set_termios(tty, port, &tmp_termios);
dbg("%s - submitting read urb", __func__);
- port->read_urb->dev = serial->dev;
result = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (result) {
dev_err(&port->dev, "%s - failed submitting read urb,"
}
dbg("%s - submitting interrupt urb", __func__);
- port->interrupt_in_urb->dev = serial->dev;
result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result) {
dev_err(&port->dev, "%s - failed submitting interrupt urb,"
static int pl2303_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
+ struct serial_struct ser;
struct usb_serial_port *port = tty->driver_data;
dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd);
switch (cmd) {
+ case TIOCGSERIAL:
+ memset(&ser, 0, sizeof ser);
+ ser.type = PORT_16654;
+ ser.line = port->serial->minor;
+ ser.port = port->number;
+ ser.baud_base = 460800;
+
+ if (copy_to_user((void __user *)arg, &ser, sizeof ser))
+ return -EFAULT;
+
+ return 0;
+
case TIOCMIWAIT:
dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
return wait_modem_info(port, arg);
tty_flag = TTY_FRAME;
dbg("%s - tty_flag = %d", __func__, tty_flag);
- tty_buffer_request_room(tty, urb->actual_length + 1);
/* overrun is special, not associated with a char */
if (line_status & UART_OVERRUN_ERROR)
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
if (status) {
dbg("%s - urb status = %d", __func__, status);
- if (!port->port.count) {
- dbg("%s - port is closed, exiting.", __func__);
- return;
- }
if (status == -EPROTO) {
/* PL2303 mysteriously fails with -EPROTO reschedule
* the read */
dbg("%s - caught -EPROTO, resubmitting the urb",
__func__);
- urb->dev = port->serial->dev;
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result)
dev_err(&urb->dev->dev, "%s - failed"
}
tty_kref_put(tty);
/* Schedule the next read _if_ we are still open */
- if (port->port.count) {
- urb->dev = port->serial->dev;
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result)
- dev_err(&urb->dev->dev, "%s - failed resubmitting"
- " read urb, error %d\n", __func__, result);
- }
-
- return;
+ result = usb_submit_urb(urb, GFP_ATOMIC);
+ if (result && result != -EPERM)
+ dev_err(&urb->dev->dev, "%s - failed resubmitting"
+ " read urb, error %d\n", __func__, result);
}
static void pl2303_write_bulk_callback(struct urb *urb)
dbg("%s - nonzero write bulk status received: %d", __func__,
status);
port->write_urb->transfer_buffer_length = 1;
- port->write_urb->dev = port->serial->dev;
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result)
dev_err(&urb->dev->dev, "%s - failed resubmitting write"
--- /dev/null
+/*
+ * Qualcomm USB Auxiliary Serial Port driver
+ *
+ * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2010 Dan Williams <dcbw@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Devices listed here usually provide a CDC ACM port on which normal modem
+ * AT commands and PPP can be used. But when that port is in-use by PPP it
+ * cannot be used simultaneously for status or signal strength. Instead, the
+ * ports here can be queried for that information using the Qualcomm DM
+ * protocol.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+
+/* NOTE: for now, only use this driver for devices that provide a CDC-ACM port
+ * for normal AT commands, but also provide secondary USB interfaces for the
+ * QCDM-capable ports. Devices that do not provide a CDC-ACM port should
+ * probably be driven by option.ko.
+ */
+
+/* UTStarcom/Pantech/Curitel devices */
+#define UTSTARCOM_VENDOR_ID 0x106c
+#define UTSTARCOM_PRODUCT_PC5740 0x3701
+#define UTSTARCOM_PRODUCT_PC5750 0x3702 /* aka Pantech PX-500 */
+#define UTSTARCOM_PRODUCT_UM150 0x3711
+#define UTSTARCOM_PRODUCT_UM175_V1 0x3712
+#define UTSTARCOM_PRODUCT_UM175_V2 0x3714
+#define UTSTARCOM_PRODUCT_UM175_ALLTEL 0x3715
+
+/* CMOTECH devices */
+#define CMOTECH_VENDOR_ID 0x16d8
+#define CMOTECH_PRODUCT_CDU550 0x5553
+#define CMOTECH_PRODUCT_CDX650 0x6512
+
+static struct usb_device_id id_table[] = {
+ { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5740, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5750, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM150, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_V1, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_V2, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_ALLTEL, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CDU550, 0xff, 0xff, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CDX650, 0xff, 0xff, 0x00) },
+ { },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_driver qcaux_driver = {
+ .name = "qcaux",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = id_table,
+ .no_dynamic_id = 1,
+};
+
+static struct usb_serial_driver qcaux_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "qcaux",
+ },
+ .id_table = id_table,
+ .num_ports = 1,
+};
+
+static int __init qcaux_init(void)
+{
+ int retval;
+
+ retval = usb_serial_register(&qcaux_device);
+ if (retval)
+ return retval;
+ retval = usb_register(&qcaux_driver);
+ if (retval)
+ usb_serial_deregister(&qcaux_device);
+ return retval;
+}
+
+static void __exit qcaux_exit(void)
+{
+ usb_deregister(&qcaux_driver);
+ usb_serial_deregister(&qcaux_device);
+}
+
+module_init(qcaux_init);
+module_exit(qcaux_exit);
+MODULE_LICENSE("GPL");
static int debug;
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
{USB_DEVICE(0x05c6, 0x9211)}, /* Acer Gobi QDL device */
{USB_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
{USB_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
#define DRIVER_DESC "Driver for Siemens USB/MPI adapter"
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
/* Vendor and product id for 6ES7-972-0CB20-0XA0 */
{ USB_DEVICE(0x908, 0x0004) },
{ },
.ifaceinfo = direct_ip_non_serial_ifaces,
};
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */
{ USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */
{ USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */
};
MODULE_DEVICE_TABLE(usb, id_table);
-static struct usb_driver sierra_driver = {
- .name = "sierra",
- .probe = usb_serial_probe,
- .disconnect = usb_serial_disconnect,
- .suspend = usb_serial_suspend,
- .resume = usb_serial_resume,
- .id_table = id_table,
- .no_dynamic_id = 1,
- .supports_autosuspend = 1,
-};
struct sierra_port_private {
spinlock_t lock; /* lock the structure */
static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
- struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+ struct sierra_port_private *portdata;
struct sierra_intf_private *intfdata;
struct usb_serial *serial = port->serial;
unsigned long flags;
} else {
if (urb->actual_length) {
tty = tty_port_tty_get(&port->port);
-
- tty_buffer_request_room(tty, urb->actual_length);
- tty_insert_flip_string(tty, data, urb->actual_length);
- tty_flip_buffer_push(tty);
-
- tty_kref_put(tty);
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
+ if (tty) {
+ tty_insert_flip_string(tty, data,
+ urb->actual_length);
+ tty_flip_buffer_push(tty);
+
+ tty_kref_put(tty);
+ usb_serial_debug_data(debug, &port->dev,
+ __func__, urb->actual_length, data);
+ }
} else {
dev_dbg(&port->dev, "%s: empty read urb"
" received\n", __func__);
}
/* Resubmit urb so we continue receiving */
- if (port->port.count && status != -ESHUTDOWN && status != -EPERM) {
+ if (status != -ESHUTDOWN && status != -EPERM) {
usb_mark_last_busy(port->serial->dev);
err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err)
+ if (err && err != -EPERM)
dev_err(&port->dev, "resubmit read urb failed."
"(%d)\n", err);
}
dev_dbg(&port->dev, "%s: error %d\n", __func__, status);
/* Resubmit urb so we continue receiving IRQ data */
- if (port->port.count && status != -ESHUTDOWN && status != -ENOENT) {
+ if (status != -ESHUTDOWN && status != -ENOENT) {
usb_mark_last_busy(serial->dev);
urb->dev = serial->dev;
err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err)
+ if (err && err != -EPERM)
dev_err(&port->dev, "%s: resubmit intr urb "
"failed. (%d)\n", __func__, err);
}
return ec ? -EIO : 0;
}
+
+static int sierra_reset_resume(struct usb_interface *intf)
+{
+ struct usb_serial *serial = usb_get_intfdata(intf);
+ dev_err(&serial->dev->dev, "%s\n", __func__);
+ return usb_serial_resume(intf);
+}
#else
#define sierra_suspend NULL
#define sierra_resume NULL
+#define sierra_reset_resume NULL
#endif
+static struct usb_driver sierra_driver = {
+ .name = "sierra",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .suspend = usb_serial_suspend,
+ .resume = usb_serial_resume,
+ .reset_resume = sierra_reset_resume,
+ .id_table = id_table,
+ .no_dynamic_id = 1,
+ .supports_autosuspend = 1,
+};
+
static struct usb_serial_driver sierra_device = {
.driver = {
.owner = THIS_MODULE,
#define SPCP8x5_835_VID 0x04fc
#define SPCP8x5_835_PID 0x0231
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(SPCP8x5_PHILIPS_VID , SPCP8x5_PHILIPS_PID)},
{ USB_DEVICE(SPCP8x5_INTERMATIC_VID, SPCP8x5_INTERMATIC_PID)},
{ USB_DEVICE(SPCP8x5_835_VID, SPCP8x5_835_PID)},
if (i < 0)
dev_err(&port->dev, "Set UART format %#x failed (error = %d)\n",
uartdata, i);
- dbg("0x21:0x40:0:0 %d\n", i);
+ dbg("0x21:0x40:0:0 %d", i);
if (cflag & CRTSCTS) {
/* enable hardware flow control */
struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
unsigned long flags;
- int i;
int result = urb->status;
u8 status;
char tty_flag;
/* check the urb status */
if (result) {
- if (!port->port.count)
- return;
if (result == -EPROTO) {
/* spcp8x5 mysteriously fails with -EPROTO */
/* reschedule the read */
tty = tty_port_tty_get(&port->port);
if (tty && urb->actual_length) {
- tty_buffer_request_room(tty, urb->actual_length + 1);
/* overrun is special, not associated with a char */
if (status & UART_OVERRUN_ERROR)
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- for (i = 0; i < urb->actual_length; ++i)
- tty_insert_flip_char(tty, data[i], tty_flag);
+ tty_insert_flip_string_fixed_flag(tty, data,
+ urb->actual_length, tty_flag);
tty_flip_buffer_push(tty);
}
tty_kref_put(tty);
- /* Schedule the next read _if_ we are still open */
- if (port->port.count) {
- urb->dev = port->serial->dev;
- result = usb_submit_urb(urb , GFP_ATOMIC);
- if (result)
- dev_dbg(&port->dev, "failed submitting read urb %d\n",
- result);
- }
-
- return;
+ /* Schedule the next read */
+ urb->dev = port->serial->dev;
+ result = usb_submit_urb(urb , GFP_ATOMIC);
+ if (result)
+ dev_dbg(&port->dev, "failed submitting read urb %d\n", result);
}
/* get data from ring buffer and then write to usb bus */
static int debug;
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x05e0, 0x0600) },
{ },
};
int status = urb->status;
struct tty_struct *tty;
int result;
- int available_room = 0;
int data_length;
dbg("%s - port %d", __func__, port->number);
*/
tty = tty_port_tty_get(&port->port);
if (tty) {
- available_room = tty_buffer_request_room(tty,
- data_length);
- if (available_room) {
- tty_insert_flip_string(tty, &data[1],
- available_room);
- tty_flip_buffer_push(tty);
- }
+ tty_insert_flip_string(tty, &data[1], data_length);
+ tty_flip_buffer_push(tty);
tty_kref_put(tty);
}
} else {
int cnt;
do {
- cnt = tty_buffer_request_room(tty, length);
+ cnt = tty_insert_flip_string(tty, data, length);
if (cnt < length) {
dev_err(dev, "%s - dropping data, %d bytes lost\n",
__func__, length - cnt);
if (cnt == 0)
break;
}
- tty_insert_flip_string(tty, data, cnt);
tty_flip_buffer_push(tty);
data += cnt;
length -= cnt;
dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
- /* count is managed under the mutex lock for the tty so cannot
- drop to zero until after the last close completes */
- WARN_ON(!port->port.count);
-
/* pass on to the driver specific version of this function */
retval = port->serial->type->write(tty, port, buf, count);
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
- WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function */
return port->serial->type->write_room(tty);
}
static int serial_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- dbg("%s = port %d", __func__, port->number);
+ dbg("%s - port %d", __func__, port->number);
/* if the device was unplugged then any remaining characters
fell out of the connector ;) */
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
- WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function */
if (port->serial->type->throttle)
port->serial->type->throttle(tty);
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
- WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function */
if (port->serial->type->unthrottle)
port->serial->type->unthrottle(tty);
dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
- WARN_ON(!port->port.count);
-
/* pass on to the driver specific version of this function
if it is available */
if (port->serial->type->ioctl) {
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
- WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function
if it is available */
if (port->serial->type->set_termios)
dbg("%s - port %d", __func__, port->number);
- WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function
if it is available */
if (port->serial->type->break_ctl)
dbg("%s - port %d", __func__, port->number);
- WARN_ON(!port->port.count);
if (port->serial->type->tiocmget)
return port->serial->type->tiocmget(tty, file);
return -EINVAL;
dbg("%s - port %d", __func__, port->number);
- WARN_ON(!port->port.count);
if (port->serial->type->tiocmset)
return port->serial->type->tiocmset(tty, file, set, clear);
return -EINVAL;
0xff,
};
-static struct usb_device_id id_table [] = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x0525, 0x127a) },
{ },
};
spin_lock_irqsave(&priv->lock, flags);
if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - write limit hit\n", __func__);
+ dbg("%s - write limit hit", __func__);
return 0;
}
priv->outstanding_urbs++;
spin_lock_irqsave(&priv->lock, flags);
if (priv->outstanding_urbs > URB_UPPER_LIMIT * 2 / 3) {
spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - write limit hit\n", __func__);
+ dbg("%s - write limit hit", __func__);
return 0;
}
spin_unlock_irqrestore(&priv->lock, flags);
if (urb->actual_length) {
tty = tty_port_tty_get(&port->port);
if (tty) {
- available_room = tty_buffer_request_room(tty,
- urb->actual_length);
- if (available_room) {
- tty_insert_flip_string(tty, data,
- available_room);
- tty_flip_buffer_push(tty);
- }
+ tty_insert_flip_string(tty, data,
+ urb->actual_length);
+ tty_flip_buffer_push(tty);
tty_kref_put(tty);
}
spin_lock(&priv->lock);
{
struct device *dev = &serial->dev->dev;
int result;
- u8 data;
+ u8 *data;
dbg("%s", __func__);
+ data = kmalloc(1, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
/*
* Note that PEG-300 series devices expect the following two calls.
*/
/* get the config number */
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
- 0, 0, &data, 1, 3000);
+ 0, 0, data, 1, 3000);
if (result < 0) {
dev_err(dev, "%s: get config number failed: %d\n",
__func__, result);
- return result;
+ goto out;
}
if (result != 1) {
dev_err(dev, "%s: get config number bad return length: %d\n",
__func__, result);
- return -EIO;
+ result = -EIO;
+ goto out;
}
/* get the interface number */
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
USB_REQ_GET_INTERFACE,
USB_DIR_IN | USB_RECIP_INTERFACE,
- 0, 0, &data, 1, 3000);
+ 0, 0, data, 1, 3000);
if (result < 0) {
dev_err(dev, "%s: get interface number failed: %d\n",
__func__, result);
- return result;
+ goto out;
}
if (result != 1) {
dev_err(dev,
"%s: get interface number bad return length: %d\n",
__func__, result);
- return -EIO;
+ result = -EIO;
+ goto out;
}
- return generic_startup(serial);
+ result = generic_startup(serial);
+out:
+ kfree(data);
+
+ return result;
}
static int treo_attach(struct usb_serial *serial)
--- /dev/null
+/*
+ * Copyright (C) 2001-2005 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2009 Outpost Embedded, LLC
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+
+
+#define DRIVER_VERSION "v1.0"
+#define DRIVER_DESC "ViVOpay USB Serial Driver"
+
+#define VIVOPAY_VENDOR_ID 0x1d5f
+
+
+static struct usb_device_id id_table [] = {
+ /* ViVOpay 8800 */
+ { USB_DEVICE(VIVOPAY_VENDOR_ID, 0x1004) },
+ { },
+};
+
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_driver vivopay_serial_driver = {
+ .name = "vivopay-serial",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = id_table,
+ .no_dynamic_id = 1,
+};
+
+static struct usb_serial_driver vivopay_serial_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "vivopay-serial",
+ },
+ .id_table = id_table,
+ .usb_driver = &vivopay_serial_driver,
+ .num_ports = 1,
+};
+
+static int __init vivopay_serial_init(void)
+{
+ int retval;
+ retval = usb_serial_register(&vivopay_serial_device);
+ if (retval)
+ goto failed_usb_serial_register;
+ retval = usb_register(&vivopay_serial_driver);
+ if (retval)
+ goto failed_usb_register;
+ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+ DRIVER_DESC "\n");
+ return 0;
+failed_usb_register:
+ usb_serial_deregister(&vivopay_serial_device);
+failed_usb_serial_register:
+ return retval;
+}
+
+static void __exit vivopay_serial_exit(void)
+{
+ usb_deregister(&vivopay_serial_driver);
+ usb_serial_deregister(&vivopay_serial_device);
+}
+
+module_init(vivopay_serial_init);
+module_exit(vivopay_serial_exit);
+
+MODULE_AUTHOR("Forest Bond <forest.bond@outpostembedded.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");
separate ID tables, and then a third table that combines them
just for the purpose of exporting the autoloading information.
*/
-static struct usb_device_id id_table_std [] = {
+static const struct usb_device_id id_table_std[] = {
{ USB_DEVICE(CONNECT_TECH_VENDOR_ID, CONNECT_TECH_WHITE_HEAT_ID) },
{ } /* Terminating entry */
};
-static struct usb_device_id id_table_prerenumeration [] = {
+static const struct usb_device_id id_table_prerenumeration[] = {
{ USB_DEVICE(CONNECT_TECH_VENDOR_ID, CONNECT_TECH_FAKE_WHITE_HEAT_ID) },
{ } /* Terminating entry */
};
-static struct usb_device_id id_table_combined [] = {
+static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(CONNECT_TECH_VENDOR_ID, CONNECT_TECH_WHITE_HEAT_ID) },
{ USB_DEVICE(CONNECT_TECH_VENDOR_ID, CONNECT_TECH_FAKE_WHITE_HEAT_ID) },
{ } /* Terminating entry */
wrap = list_entry(tmp, struct whiteheat_urb_wrap, list);
urb = wrap->urb;
- if (tty && urb->actual_length) {
- int len = tty_buffer_request_room(tty,
- urb->actual_length);
- /* This stuff can go away now I suspect */
- if (unlikely(len < urb->actual_length)) {
- spin_lock_irqsave(&info->lock, flags);
- list_add(tmp, &info->rx_urb_q);
- spin_unlock_irqrestore(&info->lock, flags);
- tty_flip_buffer_push(tty);
- schedule_work(&info->rx_work);
- goto out;
- }
- tty_insert_flip_string(tty, urb->transfer_buffer, len);
- sent += len;
- }
+ if (tty && urb->actual_length)
+ sent += tty_insert_flip_string(tty,
+ urb->transfer_buffer, urb->actual_length);
urb->dev = port->serial->dev;
result = usb_submit_urb(urb, GFP_ATOMIC);
goto fail1;
onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN,
- GFP_ATOMIC, &onetouch->data_dma);
+ GFP_KERNEL, &onetouch->data_dma);
if (!onetouch->data)
goto fail1;
if (us->fflags & US_FL_MAX_SECTORS_MIN)
max_sectors = PAGE_CACHE_SIZE >> 9;
- if (queue_max_sectors(sdev->request_queue) > max_sectors)
+ if (queue_max_hw_sectors(sdev->request_queue) > max_sectors)
blk_queue_max_hw_sectors(sdev->request_queue,
max_sectors);
} else if (sdev->type == TYPE_TAPE) {
{
struct scsi_device *sdev = to_scsi_device(dev);
- return sprintf(buf, "%u\n", queue_max_sectors(sdev->request_queue));
+ return sprintf(buf, "%u\n", queue_max_hw_sectors(sdev->request_queue));
}
/* Input routine for the sysfs max_sectors file */
struct scsi_device *sdev = to_scsi_device(dev);
unsigned short ms;
- if (sscanf(buf, "%hu", &ms) > 0 && ms <= SCSI_DEFAULT_MAX_SECTORS) {
+ if (sscanf(buf, "%hu", &ms) > 0) {
blk_queue_max_hw_sectors(sdev->request_queue, ms);
- return strlen(buf);
+ return count;
}
return -EINVAL;
}
.slave_configure = slave_configure,
/* lots of sg segments can be handled */
- .sg_tablesize = SG_ALL,
+ .sg_tablesize = SCSI_MAX_SG_CHAIN_SEGMENTS,
/* limit the total size of a transfer to 120 KB */
.max_sectors = 240,
return USB_STOR_TRANSPORT_ERROR;
}
- if ( (result = usbat_multiple_write(us,
- registers, data, 7)) != USB_STOR_TRANSPORT_GOOD) {
+ result = usbat_multiple_write(us, registers, data, 7);
+
+ if (result != USB_STOR_TRANSPORT_GOOD)
return result;
- }
/*
* Write the 12-byte command header.
* AT SPEED 4 IS UNRELIABLE!!!
*/
- if ((result = usbat_write_block(us,
- USBAT_ATA, srb->cmnd, 12,
- (srb->cmnd[0]==GPCMD_BLANK ? 75 : 10), 0) !=
- USB_STOR_TRANSPORT_GOOD)) {
+ result = usbat_write_block(us, USBAT_ATA, srb->cmnd, 12,
+ srb->cmnd[0] == GPCMD_BLANK ? 75 : 10, 0);
+
+ if (result != USB_STOR_TRANSPORT_GOOD)
return result;
- }
/* If there is response data to be read in then do it here. */
#include <linux/errno.h>
#include <linux/slab.h>
+#include <linux/usb/quirks.h>
+
#include <scsi/scsi.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_device.h>
{
int result;
+ /*for these devices we must use the class specific method */
+ if (us->pusb_dev->quirks & USB_QUIRK_RESET_MORPHS)
+ return -EPERM;
+
result = usb_lock_device_for_reset(us->pusb_dev, us->pusb_intf);
if (result < 0)
US_DEBUGP("unable to lock device for reset: %d\n", result);
0 ),
/* Reported by Jan Dumon <j.dumon@option.com>
- * This device (wrongly) has a vendor-specific device descriptor.
- * The entry is needed so usb-storage can bind to it's mass-storage
+ * These devices (wrongly) have a vendor-specific device descriptor.
+ * These entries are needed so usb-storage can bind to their mass-storage
* interface as an interface driver */
UNUSUAL_DEV( 0x0af0, 0x7501, 0x0000, 0x0000,
"Option",
US_SC_DEVICE, US_PR_DEVICE, NULL,
0 ),
+UNUSUAL_DEV( 0x0af0, 0x7701, 0x0000, 0x0000,
+ "Option",
+ "GI 0451 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0x7706, 0x0000, 0x0000,
+ "Option",
+ "GI 0451 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0x7901, 0x0000, 0x0000,
+ "Option",
+ "GI 0452 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0x7A01, 0x0000, 0x0000,
+ "Option",
+ "GI 0461 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0x7A05, 0x0000, 0x0000,
+ "Option",
+ "GI 0461 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0x8300, 0x0000, 0x0000,
+ "Option",
+ "GI 033x SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0x8302, 0x0000, 0x0000,
+ "Option",
+ "GI 033x SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0x8304, 0x0000, 0x0000,
+ "Option",
+ "GI 033x SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0xc100, 0x0000, 0x0000,
+ "Option",
+ "GI 070x SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0xd057, 0x0000, 0x0000,
+ "Option",
+ "GI 1505 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0xd058, 0x0000, 0x0000,
+ "Option",
+ "GI 1509 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0xd157, 0x0000, 0x0000,
+ "Option",
+ "GI 1515 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0xd257, 0x0000, 0x0000,
+ "Option",
+ "GI 1215 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
+UNUSUAL_DEV( 0x0af0, 0xd357, 0x0000, 0x0000,
+ "Option",
+ "GI 1505 SD-Card",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ 0 ),
+
/* Reported by Ben Efros <ben@pc-doctor.com> */
UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000,
"Seagate",
#define USB_SKEL_PRODUCT_ID 0xfff0
/* table of devices that work with this driver */
-static struct usb_device_id skel_table[] = {
+static const struct usb_device_id skel_table[] = {
{ USB_DEVICE(USB_SKEL_VENDOR_ID, USB_SKEL_PRODUCT_ID) },
{ } /* Terminating entry */
};
kzfree(cbaf);
}
-static struct usb_device_id cbaf_id_table[] = {
+static const struct usb_device_id cbaf_id_table[] = {
{ USB_INTERFACE_INFO(0xef, 0x03, 0x01), },
{ },
};
* reference that we'll drop.
*
* First we need to determine if the device is a WUSB device (else we
- * ignore it). For that we use the speed setting (USB_SPEED_VARIABLE)
+ * ignore it). For that we use the speed setting (USB_SPEED_WIRELESS)
* [FIXME: maybe we'd need something more definitive]. If so, we track
* it's usb_busd and from there, the WUSB HC.
*
{
int result = 0;
- if (memcmp(chid, &wusb_ckhdid_zero, sizeof(chid)) == 0)
+ if (memcmp(chid, &wusb_ckhdid_zero, sizeof(*chid)) == 0)
chid = NULL;
mutex_lock(&wusbhc->mutex);
#define _LINUX_TTY_FLIP_H
extern int tty_buffer_request_room(struct tty_struct *tty, size_t size);
-extern int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size);
extern int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size);
+extern int tty_insert_flip_string_fixed_flag(struct tty_struct *tty, const unsigned char *chars, char flag, size_t size);
extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
void tty_schedule_flip(struct tty_struct *tty);
return tty_insert_flip_string_flags(tty, &ch, &flag, 1);
}
+static inline int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size)
+{
+ return tty_insert_flip_string_fixed_flag(tty, chars, TTY_NORMAL, size);
+}
+
#endif /* _LINUX_TTY_FLIP_H */
* number from the USB core by calling usb_register_dev().
* @condition: binding state of the interface: not bound, binding
* (in probe()), bound to a driver, or unbinding (in disconnect())
- * @is_active: flag set when the interface is bound and not suspended.
* @sysfs_files_created: sysfs attributes exist
* @ep_devs_created: endpoint child pseudo-devices exist
* @unregistering: flag set when the interface is being unregistered
* @dev: driver model's view of this device
* @usb_dev: if an interface is bound to the USB major, this will point
* to the sysfs representation for that device.
- * @pm_usage_cnt: PM usage counter for this interface; autosuspend is not
- * allowed unless the counter is 0.
+ * @pm_usage_cnt: PM usage counter for this interface
* @reset_ws: Used for scheduling resets from atomic context.
* @reset_running: set to 1 if the interface is currently running a
* queued reset so that usb_cancel_queued_reset() doesn't try to
int minor; /* minor number this interface is
* bound to */
enum usb_interface_condition condition; /* state of binding */
- unsigned is_active:1; /* the interface is not suspended */
unsigned sysfs_files_created:1; /* the sysfs attributes exist */
unsigned ep_devs_created:1; /* endpoint "devices" exist */
unsigned unregistering:1; /* unregistration is in progress */
* @portnum: parent port number (origin 1)
* @level: number of USB hub ancestors
* @can_submit: URBs may be submitted
- * @discon_suspended: disconnected while suspended
* @persist_enabled: USB_PERSIST enabled for this device
* @have_langid: whether string_langid is valid
* @authorized: policy has said we can use it;
* @usbfs_dentry: usbfs dentry entry for the device
* @maxchild: number of ports if hub
* @children: child devices - USB devices that are attached to this hub
- * @pm_usage_cnt: usage counter for autosuspend
* @quirks: quirks of the whole device
* @urbnum: number of URBs submitted for the whole device
* @active_duration: total time device is not suspended
- * @autosuspend: for delayed autosuspends
- * @autoresume: for autoresumes requested while in_interrupt
- * @pm_mutex: protects PM operations
* @last_busy: time of last use
* @autosuspend_delay: in jiffies
* @connect_time: time device was first connected
* @do_remote_wakeup: remote wakeup should be enabled
* @reset_resume: needs reset instead of resume
* @autosuspend_disabled: autosuspend disabled by the user
- * @skip_sys_resume: skip the next system resume
* @wusb_dev: if this is a Wireless USB device, link to the WUSB
* specific data for the device.
* @slot_id: Slot ID assigned by xHCI
u8 level;
unsigned can_submit:1;
- unsigned discon_suspended:1;
unsigned persist_enabled:1;
unsigned have_langid:1;
unsigned authorized:1;
int maxchild;
struct usb_device *children[USB_MAXCHILDREN];
- int pm_usage_cnt;
u32 quirks;
atomic_t urbnum;
unsigned long active_duration;
#ifdef CONFIG_PM
- struct delayed_work autosuspend;
- struct work_struct autoresume;
- struct mutex pm_mutex;
-
unsigned long last_busy;
int autosuspend_delay;
unsigned long connect_time;
unsigned do_remote_wakeup:1;
unsigned reset_resume:1;
unsigned autosuspend_disabled:1;
- unsigned skip_sys_resume:1;
#endif
struct wusb_dev *wusb_dev;
int slot_id;
/* USB autosuspend and autoresume */
#ifdef CONFIG_USB_SUSPEND
+extern int usb_enable_autosuspend(struct usb_device *udev);
+extern int usb_disable_autosuspend(struct usb_device *udev);
+
extern int usb_autopm_get_interface(struct usb_interface *intf);
extern void usb_autopm_put_interface(struct usb_interface *intf);
extern int usb_autopm_get_interface_async(struct usb_interface *intf);
extern void usb_autopm_put_interface_async(struct usb_interface *intf);
-
-static inline void usb_autopm_get_interface_no_resume(
- struct usb_interface *intf)
-{
- atomic_inc(&intf->pm_usage_cnt);
-}
-static inline void usb_autopm_put_interface_no_suspend(
- struct usb_interface *intf)
-{
- atomic_dec(&intf->pm_usage_cnt);
-}
+extern void usb_autopm_get_interface_no_resume(struct usb_interface *intf);
+extern void usb_autopm_put_interface_no_suspend(struct usb_interface *intf);
static inline void usb_mark_last_busy(struct usb_device *udev)
{
#else
+static inline int usb_enable_autosuspend(struct usb_device *udev)
+{ return 0; }
+static inline int usb_disable_autosuspend(struct usb_device *udev)
+{ return 0; }
+
static inline int usb_autopm_get_interface(struct usb_interface *intf)
{ return 0; }
static inline int usb_autopm_get_interface_async(struct usb_interface *intf)
extern void usb_unregister_notify(struct notifier_block *nb);
#ifdef DEBUG
-#define dbg(format, arg...) printk(KERN_DEBUG "%s: " format "\n" , \
- __FILE__ , ## arg)
+#define dbg(format, arg...) \
+ printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg)
#else
-#define dbg(format, arg...) do {} while (0)
+#define dbg(format, arg...) \
+do { \
+ if (0) \
+ printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \
+} while (0)
#endif
-#define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
- format "\n" , ## arg)
+#define err(format, arg...) \
+ printk(KERN_ERR KBUILD_MODNAME ": " format "\n", ##arg)
/* debugfs stuff */
extern struct dentry *usb_debug_root;
header-y += midi.h
header-y += g_printer.h
header-y += tmc.h
-header-y += vstusb.h
struct usba_platform_data {
int vbus_pin;
+ int vbus_pin_inverted;
int num_ep;
struct usba_ep_data ep[0];
};
USB_SPEED_UNKNOWN = 0, /* enumerating */
USB_SPEED_LOW, USB_SPEED_FULL, /* usb 1.1 */
USB_SPEED_HIGH, /* usb 2.0 */
- USB_SPEED_VARIABLE, /* wireless (usb 2.5) */
+ USB_SPEED_WIRELESS, /* wireless (usb 2.5) */
USB_SPEED_SUPER, /* usb 3.0 */
};
struct musb_hdrc_config {
/* MUSB configuration-specific details */
unsigned multipoint:1; /* multipoint device */
- unsigned dyn_fifo:1; /* supports dynamic fifo sizing */
- unsigned soft_con:1; /* soft connect required */
- unsigned utm_16:1; /* utm data witdh is 16 bits */
+ unsigned dyn_fifo:1 __deprecated; /* supports dynamic fifo sizing */
+ unsigned soft_con:1 __deprecated; /* soft connect required */
+ unsigned utm_16:1 __deprecated; /* utm data witdh is 16 bits */
unsigned big_endian:1; /* true if CPU uses big-endian */
unsigned mult_bulk_tx:1; /* Tx ep required for multbulk pkts */
unsigned mult_bulk_rx:1; /* Rx ep required for multbulk pkts */
unsigned high_iso_tx:1; /* Tx ep required for HB iso */
unsigned high_iso_rx:1; /* Rx ep required for HD iso */
- unsigned dma:1; /* supports DMA */
- unsigned vendor_req:1; /* vendor registers required */
+ unsigned dma:1 __deprecated; /* supports DMA */
+ unsigned vendor_req:1 __deprecated; /* vendor registers required */
u8 num_eps; /* number of endpoints _with_ ep0 */
- u8 dma_channels; /* number of dma channels */
+ u8 dma_channels __deprecated; /* number of dma channels */
u8 dyn_fifo_size; /* dynamic size in bytes */
- u8 vendor_ctrl; /* vendor control reg width */
- u8 vendor_stat; /* vendor status reg witdh */
- u8 dma_req_chan; /* bitmask for required dma channels */
+ u8 vendor_ctrl __deprecated; /* vendor control reg width */
+ u8 vendor_stat __deprecated; /* vendor status reg witdh */
+ u8 dma_req_chan __deprecated; /* bitmask for required dma channels */
u8 ram_bits; /* ram address size */
- struct musb_hdrc_eps_bits *eps_bits;
+ struct musb_hdrc_eps_bits *eps_bits __deprecated;
#ifdef CONFIG_BLACKFIN
/* A GPIO controlling VRSEL in Blackfin */
unsigned int gpio_vrsel;
/* (HOST or OTG) msec/2 after VBUS on till power good */
u8 potpgt;
+ /* (HOST or OTG) program PHY for external Vbus */
+ unsigned extvbus:1;
+
/* Power the device on or off */
int (*set_power)(int state);
#ifndef __LINUX_USB_OTG_H
#define __LINUX_USB_OTG_H
+#include <linux/notifier.h>
+
/* OTG defines lots of enumeration states before device reset */
enum usb_otg_state {
OTG_STATE_UNDEFINED = 0,
OTG_STATE_A_VBUS_ERR,
};
+enum usb_xceiv_events {
+ USB_EVENT_NONE, /* no events or cable disconnected */
+ USB_EVENT_VBUS, /* vbus valid event */
+ USB_EVENT_ID, /* id was grounded */
+ USB_EVENT_CHARGER, /* usb dedicated charger */
+ USB_EVENT_ENUMERATED, /* gadget driver enumerated */
+};
+
#define USB_OTG_PULLUP_ID (1 << 0)
#define USB_OTG_PULLDOWN_DP (1 << 1)
#define USB_OTG_PULLDOWN_DM (1 << 2)
struct otg_io_access_ops *io_ops;
void __iomem *io_priv;
+ /* for notification of usb_xceiv_events */
+ struct blocking_notifier_head notifier;
+
/* to pass extra port status to the root hub */
u16 port_status;
u16 port_change;
return otg->start_srp(otg);
}
+/* notifiers */
+static inline int
+otg_register_notifier(struct otg_transceiver *otg, struct notifier_block *nb)
+{
+ return blocking_notifier_chain_register(&otg->notifier, nb);
+}
+
+static inline void
+otg_unregister_notifier(struct otg_transceiver *otg, struct notifier_block *nb)
+{
+ blocking_notifier_chain_unregister(&otg->notifier, nb);
+}
/* for OTG controller drivers (and maybe other stuff) */
extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num);
/* device can't handle its Configuration or Interface strings */
#define USB_QUIRK_CONFIG_INTF_STRINGS 0x00000008
+/*device will morph if reset, don't use reset for handling errors */
+#define USB_QUIRK_RESET_MORPHS 0x00000010
+
#endif /* __LINUX_USB_QUIRKS_H */
/* Use our own dbg macro */
#undef dbg
-#define dbg(format, arg...) \
- do { \
- if (debug) \
- printk(KERN_DEBUG "%s: " format "\n" , __FILE__ , \
- ## arg); \
- } while (0)
-
-
+#define dbg(format, arg...) \
+do { \
+ if (debug) \
+ printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \
+} while (0)
#endif /* __LINUX_USB_SERIAL_H */
+++ /dev/null
-/*****************************************************************************
- * File: drivers/usb/misc/vstusb.h
- *
- * Purpose: Support for the bulk USB Vernier Spectrophotometers
- *
- * Author: EQware Engineering, Inc.
- * Oregon City, OR, USA 97045
- *
- * Copyright: 2007, 2008
- * Vernier Software & Technology
- * Beaverton, OR, USA 97005
- *
- * Web: www.vernier.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *****************************************************************************/
-/*****************************************************************************
- *
- * The vstusb module is a standard usb 'client' driver running on top of the
- * standard usb host controller stack.
- *
- * In general, vstusb supports standard bulk usb pipes. It supports multiple
- * devices and multiple pipes per device.
- *
- * The vstusb driver supports two interfaces:
- * 1 - ioctl SEND_PIPE/RECV_PIPE - a general bulk write/read msg
- * interface to any pipe with timeout support;
- * 2 - standard read/write with ioctl config - offers standard read/write
- * interface with ioctl configured pipes and timeouts.
- *
- * Both interfaces can be signal from other process and will abort its i/o
- * operation.
- *
- * A timeout of 0 means NO timeout. The user can still terminate the read via
- * signal.
- *
- * If using multiple threads with this driver, the user should ensure that
- * any reads, writes, or ioctls are complete before closing the device.
- * Changing read/write timeouts or pipes takes effect on next read/write.
- *
- *****************************************************************************/
-
-struct vstusb_args {
- union {
- /* this struct is used for IOCTL_VSTUSB_SEND_PIPE, *
- * IOCTL_VSTUSB_RECV_PIPE, and read()/write() fops */
- struct {
- void __user *buffer;
- size_t count;
- unsigned int timeout_ms;
- int pipe;
- };
-
- /* this one is used for IOCTL_VSTUSB_CONFIG_RW */
- struct {
- int rd_pipe;
- int rd_timeout_ms;
- int wr_pipe;
- int wr_timeout_ms;
- };
- };
-};
-
-#define VST_IOC_MAGIC 'L'
-#define VST_IOC_FIRST 0x20
-#define IOCTL_VSTUSB_SEND_PIPE _IO(VST_IOC_MAGIC, VST_IOC_FIRST)
-#define IOCTL_VSTUSB_RECV_PIPE _IO(VST_IOC_MAGIC, VST_IOC_FIRST + 1)
-#define IOCTL_VSTUSB_CONFIG_RW _IO(VST_IOC_MAGIC, VST_IOC_FIRST + 2)
git://bbs.cooldavid.org / net-next-2.6.git / commitdiff