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Commit | Line | Data |
---|---|---|
69de51fd | 1 | /* |
033a3fb9 KL |
2 | USB Driver for Sierra Wireless |
3 | ||
40d2ff32 EP |
4 | Copyright (C) 2006, 2007, 2008 Kevin Lloyd <klloyd@sierrawireless.com>, |
5 | ||
6 | Copyright (C) 2008, 2009 Elina Pasheva, Matthew Safar, Rory Filer | |
7 | <linux@sierrawireless.com> | |
033a3fb9 KL |
8 | |
9 | IMPORTANT DISCLAIMER: This driver is not commercially supported by | |
10 | Sierra Wireless. Use at your own risk. | |
11 | ||
12 | This driver is free software; you can redistribute it and/or modify | |
13 | it under the terms of Version 2 of the GNU General Public License as | |
14 | published by the Free Software Foundation. | |
15 | ||
16 | Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de> | |
17 | Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org> | |
033a3fb9 KL |
18 | */ |
19 | ||
238ebd13 | 20 | #define DRIVER_VERSION "v.1.3.7" |
40d2ff32 | 21 | #define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer" |
033a3fb9 | 22 | #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" |
69de51fd KL |
23 | |
24 | #include <linux/kernel.h> | |
033a3fb9 KL |
25 | #include <linux/jiffies.h> |
26 | #include <linux/errno.h> | |
69de51fd | 27 | #include <linux/tty.h> |
033a3fb9 | 28 | #include <linux/tty_flip.h> |
69de51fd KL |
29 | #include <linux/module.h> |
30 | #include <linux/usb.h> | |
a969888c | 31 | #include <linux/usb/serial.h> |
69de51fd | 32 | |
228426ed KL |
33 | #define SWIMS_USB_REQUEST_SetPower 0x00 |
34 | #define SWIMS_USB_REQUEST_SetNmea 0x07 | |
112225b1 | 35 | |
b748bb71 EP |
36 | #define N_IN_URB 8 |
37 | #define N_OUT_URB 64 | |
112225b1 KL |
38 | #define IN_BUFLEN 4096 |
39 | ||
40d2ff32 EP |
40 | #define MAX_TRANSFER (PAGE_SIZE - 512) |
41 | /* MAX_TRANSFER is chosen so that the VM is not stressed by | |
42 | allocations > PAGE_SIZE and the number of packets in a page | |
43 | is an integer 512 is the largest possible packet on EHCI */ | |
44 | ||
112225b1 | 45 | static int debug; |
228426ed | 46 | static int nmea; |
112225b1 | 47 | |
4db2299d EP |
48 | /* Used in interface blacklisting */ |
49 | struct sierra_iface_info { | |
50 | const u32 infolen; /* number of interface numbers on blacklist */ | |
51 | const u8 *ifaceinfo; /* pointer to the array holding the numbers */ | |
52 | }; | |
53 | ||
e6929a90 ON |
54 | struct sierra_intf_private { |
55 | spinlock_t susp_lock; | |
56 | unsigned int suspended:1; | |
57 | int in_flight; | |
58 | }; | |
59 | ||
82a24e68 | 60 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
61 | { |
62 | int result; | |
5d44b361 | 63 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 64 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 65 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 66 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
67 | swiState, /* __u16 value */ |
68 | 0, /* __u16 index */ | |
69 | NULL, /* void *data */ | |
70 | 0, /* __u16 size */ | |
71 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
72 | return result; |
73 | } | |
74 | ||
228426ed | 75 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
76 | { |
77 | int result; | |
5d44b361 | 78 | dev_dbg(&udev->dev, "%s\n", __func__); |
228426ed KL |
79 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
80 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
f3564de4 | 81 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
82 | enable, /* __u16 value */ |
83 | 0x0000, /* __u16 index */ | |
84 | NULL, /* void *data */ | |
85 | 0, /* __u16 size */ | |
86 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
87 | return result; | |
88 | } | |
89 | ||
90 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
91 | { | |
9636b683 EP |
92 | int num_ports = 0; |
93 | u8 ifnum, numendpoints; | |
228426ed | 94 | |
9636b683 | 95 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
228426ed | 96 | |
9636b683 EP |
97 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; |
98 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
228426ed | 99 | |
9636b683 EP |
100 | /* Dummy interface present on some SKUs should be ignored */ |
101 | if (ifnum == 0x99) | |
102 | num_ports = 0; | |
103 | else if (numendpoints <= 3) | |
104 | num_ports = 1; | |
105 | else | |
106 | num_ports = (numendpoints-1)/2; | |
107 | return num_ports; | |
228426ed KL |
108 | } |
109 | ||
4db2299d EP |
110 | static int is_blacklisted(const u8 ifnum, |
111 | const struct sierra_iface_info *blacklist) | |
112 | { | |
113 | const u8 *info; | |
114 | int i; | |
115 | ||
116 | if (blacklist) { | |
117 | info = blacklist->ifaceinfo; | |
118 | ||
119 | for (i = 0; i < blacklist->infolen; i++) { | |
120 | if (info[i] == ifnum) | |
121 | return 1; | |
122 | } | |
123 | } | |
124 | return 0; | |
125 | } | |
126 | ||
7106967e KL |
127 | static int sierra_calc_interface(struct usb_serial *serial) |
128 | { | |
4e0fee82 KL |
129 | int interface; |
130 | struct usb_interface *p_interface; | |
131 | struct usb_host_interface *p_host_interface; | |
5d44b361 | 132 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
7106967e | 133 | |
4e0fee82 KL |
134 | /* Get the interface structure pointer from the serial struct */ |
135 | p_interface = serial->interface; | |
7106967e | 136 | |
4e0fee82 KL |
137 | /* Get a pointer to the host interface structure */ |
138 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 139 | |
4e0fee82 KL |
140 | /* read the interface descriptor for this active altsetting |
141 | * to find out the interface number we are on | |
142 | */ | |
143 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 144 | |
4e0fee82 | 145 | return interface; |
7106967e KL |
146 | } |
147 | ||
228426ed KL |
148 | static int sierra_probe(struct usb_serial *serial, |
149 | const struct usb_device_id *id) | |
150 | { | |
151 | int result = 0; | |
112225b1 | 152 | struct usb_device *udev; |
e6929a90 | 153 | struct sierra_intf_private *data; |
228426ed | 154 | u8 ifnum; |
112225b1 | 155 | |
228426ed | 156 | udev = serial->dev; |
9636b683 | 157 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 158 | |
e3173b22 | 159 | ifnum = sierra_calc_interface(serial); |
e3173b22 KL |
160 | /* |
161 | * If this interface supports more than 1 alternate | |
162 | * select the 2nd one | |
163 | */ | |
164 | if (serial->interface->num_altsetting == 2) { | |
165 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
166 | ifnum); | |
167 | /* We know the alternate setting is 1 for the MC8785 */ | |
168 | usb_set_interface(udev, ifnum, 1); | |
169 | } | |
7106967e | 170 | |
4db2299d EP |
171 | /* ifnum could have changed - by calling usb_set_interface */ |
172 | ifnum = sierra_calc_interface(serial); | |
173 | ||
174 | if (is_blacklisted(ifnum, | |
175 | (struct sierra_iface_info *)id->driver_info)) { | |
176 | dev_dbg(&serial->dev->dev, | |
177 | "Ignoring blacklisted interface #%d\n", ifnum); | |
178 | return -ENODEV; | |
179 | } | |
180 | ||
e6929a90 ON |
181 | data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); |
182 | if (!data) | |
183 | return -ENOMEM; | |
184 | spin_lock_init(&data->susp_lock); | |
185 | ||
228426ed | 186 | return result; |
112225b1 | 187 | } |
033a3fb9 | 188 | |
4db2299d EP |
189 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; |
190 | static const struct sierra_iface_info direct_ip_interface_blacklist = { | |
191 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
192 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
193 | }; | |
194 | ||
69de51fd | 195 | static struct usb_device_id id_table [] = { |
c5f3d87d EP |
196 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
197 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
198 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ | |
199 | ||
e43062dd | 200 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 201 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 202 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
69de51fd | 203 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 204 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
205 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
206 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
207 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 208 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 209 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 210 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 211 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
c5f3d87d | 212 | /* Sierra Wireless C597 */ |
4e0fee82 | 213 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 214 | /* Sierra Wireless T598 */ |
e3173b22 | 215 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
216 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
217 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
218 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
219 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 220 | |
69de51fd KL |
221 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
222 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
223 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
224 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
225 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
226 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 227 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 228 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 229 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 230 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 231 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 232 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 233 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
234 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
235 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
236 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
237 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
238 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
239 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 240 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 241 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
242 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
243 | { USB_DEVICE(0x1199, 0x683C) }, | |
244 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
245 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
246 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
247 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
248 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
249 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
250 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 251 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 252 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
253 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
254 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
255 | /* Sierra Wireless C885 */ | |
256 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 257 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 258 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 259 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 260 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 261 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 262 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 263 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
4db2299d EP |
264 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
265 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
266 | }, | |
267 | ||
033a3fb9 KL |
268 | { } |
269 | }; | |
964ee1de | 270 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 271 | |
69de51fd | 272 | static struct usb_driver sierra_driver = { |
033a3fb9 | 273 | .name = "sierra", |
228426ed | 274 | .probe = usb_serial_probe, |
033a3fb9 | 275 | .disconnect = usb_serial_disconnect, |
e6929a90 ON |
276 | .suspend = usb_serial_suspend, |
277 | .resume = usb_serial_resume, | |
033a3fb9 | 278 | .id_table = id_table, |
964ee1de | 279 | .no_dynamic_id = 1, |
e6929a90 | 280 | .supports_autosuspend = 1, |
033a3fb9 KL |
281 | }; |
282 | ||
033a3fb9 | 283 | struct sierra_port_private { |
17c23274 GKH |
284 | spinlock_t lock; /* lock the structure */ |
285 | int outstanding_urbs; /* number of out urbs in flight */ | |
e6929a90 ON |
286 | struct usb_anchor active; |
287 | struct usb_anchor delayed; | |
17c23274 | 288 | |
4f4f9c53 | 289 | /* Input endpoints and buffers for this port */ |
033a3fb9 | 290 | struct urb *in_urbs[N_IN_URB]; |
033a3fb9 KL |
291 | |
292 | /* Settings for the port */ | |
293 | int rts_state; /* Handshaking pins (outputs) */ | |
294 | int dtr_state; | |
295 | int cts_state; /* Handshaking pins (inputs) */ | |
296 | int dsr_state; | |
297 | int dcd_state; | |
298 | int ri_state; | |
e6929a90 ON |
299 | |
300 | unsigned int opened:1; | |
033a3fb9 KL |
301 | }; |
302 | ||
335f8514 | 303 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 304 | { |
964ee1de GKH |
305 | struct usb_serial *serial = port->serial; |
306 | struct sierra_port_private *portdata; | |
228426ed | 307 | __u16 interface = 0; |
335f8514 | 308 | int val = 0; |
033a3fb9 | 309 | |
5d44b361 | 310 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 311 | |
964ee1de | 312 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 313 | |
335f8514 AC |
314 | if (portdata->dtr_state) |
315 | val |= 0x01; | |
316 | if (portdata->rts_state) | |
317 | val |= 0x02; | |
318 | ||
319 | /* If composite device then properly report interface */ | |
00b040de | 320 | if (serial->num_ports == 1) { |
335f8514 | 321 | interface = sierra_calc_interface(serial); |
00b040de AC |
322 | /* Control message is sent only to interfaces with |
323 | * interrupt_in endpoints | |
324 | */ | |
325 | if (port->interrupt_in_urb) { | |
326 | /* send control message */ | |
327 | return usb_control_msg(serial->dev, | |
328 | usb_rcvctrlpipe(serial->dev, 0), | |
329 | 0x22, 0x21, val, interface, | |
330 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
331 | } | |
332 | } | |
335f8514 AC |
333 | |
334 | /* Otherwise the need to do non-composite mapping */ | |
335 | else { | |
336 | if (port->bulk_out_endpointAddress == 2) | |
337 | interface = 0; | |
338 | else if (port->bulk_out_endpointAddress == 4) | |
339 | interface = 1; | |
340 | else if (port->bulk_out_endpointAddress == 5) | |
341 | interface = 2; | |
00b040de | 342 | return usb_control_msg(serial->dev, |
335f8514 AC |
343 | usb_rcvctrlpipe(serial->dev, 0), |
344 | 0x22, 0x21, val, interface, | |
345 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
00b040de | 346 | } |
964ee1de | 347 | return 0; |
69de51fd KL |
348 | } |
349 | ||
95da310e AC |
350 | static void sierra_set_termios(struct tty_struct *tty, |
351 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 352 | { |
5d44b361 | 353 | dev_dbg(&port->dev, "%s\n", __func__); |
95da310e | 354 | tty_termios_copy_hw(tty->termios, old_termios); |
335f8514 | 355 | sierra_send_setup(port); |
033a3fb9 KL |
356 | } |
357 | ||
95da310e | 358 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 359 | { |
95da310e | 360 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
361 | unsigned int value; |
362 | struct sierra_port_private *portdata; | |
363 | ||
5d44b361 | 364 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 KL |
365 | portdata = usb_get_serial_port_data(port); |
366 | ||
367 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
368 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
369 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
370 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
371 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
372 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
373 | ||
374 | return value; | |
375 | } | |
376 | ||
95da310e | 377 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
033a3fb9 KL |
378 | unsigned int set, unsigned int clear) |
379 | { | |
95da310e | 380 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
381 | struct sierra_port_private *portdata; |
382 | ||
383 | portdata = usb_get_serial_port_data(port); | |
384 | ||
385 | if (set & TIOCM_RTS) | |
386 | portdata->rts_state = 1; | |
387 | if (set & TIOCM_DTR) | |
388 | portdata->dtr_state = 1; | |
389 | ||
390 | if (clear & TIOCM_RTS) | |
391 | portdata->rts_state = 0; | |
392 | if (clear & TIOCM_DTR) | |
393 | portdata->dtr_state = 0; | |
335f8514 | 394 | return sierra_send_setup(port); |
033a3fb9 KL |
395 | } |
396 | ||
b9a44bc1 EP |
397 | static void sierra_release_urb(struct urb *urb) |
398 | { | |
399 | struct usb_serial_port *port; | |
400 | if (urb) { | |
401 | port = urb->context; | |
402 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
403 | kfree(urb->transfer_buffer); | |
404 | usb_free_urb(urb); | |
405 | } | |
406 | } | |
407 | ||
17c23274 GKH |
408 | static void sierra_outdat_callback(struct urb *urb) |
409 | { | |
410 | struct usb_serial_port *port = urb->context; | |
411 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
e6929a90 | 412 | struct sierra_intf_private *intfdata; |
17c23274 | 413 | int status = urb->status; |
17c23274 | 414 | |
5d44b361 | 415 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
e6929a90 | 416 | intfdata = port->serial->private; |
17c23274 GKH |
417 | |
418 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
419 | kfree(urb->transfer_buffer); | |
e6929a90 | 420 | usb_autopm_put_interface_async(port->serial->interface); |
17c23274 | 421 | if (status) |
7384a922 | 422 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 423 | "received: %d\n", __func__, status); |
17c23274 | 424 | |
e6929a90 | 425 | spin_lock(&portdata->lock); |
17c23274 | 426 | --portdata->outstanding_urbs; |
e6929a90 ON |
427 | spin_unlock(&portdata->lock); |
428 | spin_lock(&intfdata->susp_lock); | |
429 | --intfdata->in_flight; | |
430 | spin_unlock(&intfdata->susp_lock); | |
17c23274 GKH |
431 | |
432 | usb_serial_port_softint(port); | |
433 | } | |
434 | ||
033a3fb9 | 435 | /* Write */ |
95da310e AC |
436 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
437 | const unsigned char *buf, int count) | |
033a3fb9 | 438 | { |
17c23274 | 439 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
e6929a90 | 440 | struct sierra_intf_private *intfdata; |
17c23274 GKH |
441 | struct usb_serial *serial = port->serial; |
442 | unsigned long flags; | |
443 | unsigned char *buffer; | |
444 | struct urb *urb; | |
40d2ff32 EP |
445 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
446 | int retval = 0; | |
447 | ||
448 | /* verify that we actually have some data to write */ | |
449 | if (count == 0) | |
450 | return 0; | |
033a3fb9 KL |
451 | |
452 | portdata = usb_get_serial_port_data(port); | |
e6929a90 | 453 | intfdata = serial->private; |
033a3fb9 | 454 | |
0b10395a | 455 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
17c23274 | 456 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
457 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
458 | portdata->outstanding_urbs); | |
17c23274 GKH |
459 | if (portdata->outstanding_urbs > N_OUT_URB) { |
460 | spin_unlock_irqrestore(&portdata->lock, flags); | |
7384a922 | 461 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
462 | return 0; |
463 | } | |
464 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
465 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
466 | portdata->outstanding_urbs); | |
17c23274 GKH |
467 | spin_unlock_irqrestore(&portdata->lock, flags); |
468 | ||
e6929a90 ON |
469 | retval = usb_autopm_get_interface_async(serial->interface); |
470 | if (retval < 0) { | |
471 | spin_lock_irqsave(&portdata->lock, flags); | |
472 | portdata->outstanding_urbs--; | |
473 | spin_unlock_irqrestore(&portdata->lock, flags); | |
474 | goto error_simple; | |
475 | } | |
476 | ||
40d2ff32 | 477 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 GKH |
478 | if (!buffer) { |
479 | dev_err(&port->dev, "out of memory\n"); | |
40d2ff32 | 480 | retval = -ENOMEM; |
17c23274 GKH |
481 | goto error_no_buffer; |
482 | } | |
033a3fb9 | 483 | |
17c23274 GKH |
484 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
485 | if (!urb) { | |
486 | dev_err(&port->dev, "no more free urbs\n"); | |
40d2ff32 | 487 | retval = -ENOMEM; |
17c23274 GKH |
488 | goto error_no_urb; |
489 | } | |
033a3fb9 | 490 | |
40d2ff32 | 491 | memcpy(buffer, buf, writesize); |
033a3fb9 | 492 | |
40d2ff32 | 493 | usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer); |
17c23274 GKH |
494 | |
495 | usb_fill_bulk_urb(urb, serial->dev, | |
496 | usb_sndbulkpipe(serial->dev, | |
497 | port->bulk_out_endpointAddress), | |
40d2ff32 | 498 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 499 | |
238ebd13 EP |
500 | /* Handle the need to send a zero length packet */ |
501 | urb->transfer_flags |= URB_ZERO_PACKET; | |
502 | ||
e6929a90 ON |
503 | spin_lock_irqsave(&intfdata->susp_lock, flags); |
504 | ||
505 | if (intfdata->suspended) { | |
506 | usb_anchor_urb(urb, &portdata->delayed); | |
507 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
508 | goto skip_power; | |
509 | } else { | |
510 | usb_anchor_urb(urb, &portdata->active); | |
511 | } | |
17c23274 | 512 | /* send it down the pipe */ |
40d2ff32 EP |
513 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
514 | if (retval) { | |
e6929a90 ON |
515 | usb_unanchor_urb(urb); |
516 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
17c23274 | 517 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 518 | "with status = %d\n", __func__, retval); |
17c23274 | 519 | goto error; |
e6929a90 ON |
520 | } else { |
521 | intfdata->in_flight++; | |
522 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
033a3fb9 KL |
523 | } |
524 | ||
e6929a90 | 525 | skip_power: |
17c23274 GKH |
526 | /* we are done with this urb, so let the host driver |
527 | * really free it when it is finished with it */ | |
528 | usb_free_urb(urb); | |
529 | ||
40d2ff32 | 530 | return writesize; |
17c23274 GKH |
531 | error: |
532 | usb_free_urb(urb); | |
533 | error_no_urb: | |
534 | kfree(buffer); | |
535 | error_no_buffer: | |
536 | spin_lock_irqsave(&portdata->lock, flags); | |
537 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
538 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
539 | portdata->outstanding_urbs); | |
17c23274 | 540 | spin_unlock_irqrestore(&portdata->lock, flags); |
e6929a90 ON |
541 | usb_autopm_put_interface_async(serial->interface); |
542 | error_simple: | |
40d2ff32 | 543 | return retval; |
033a3fb9 KL |
544 | } |
545 | ||
546 | static void sierra_indat_callback(struct urb *urb) | |
547 | { | |
548 | int err; | |
549 | int endpoint; | |
550 | struct usb_serial_port *port; | |
551 | struct tty_struct *tty; | |
552 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 553 | int status = urb->status; |
033a3fb9 | 554 | |
033a3fb9 | 555 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
556 | port = urb->context; |
557 | ||
558 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
033a3fb9 | 559 | |
17dd2215 | 560 | if (status) { |
7384a922 | 561 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 562 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 563 | } else { |
033a3fb9 | 564 | if (urb->actual_length) { |
d95186d1 | 565 | tty = tty_port_tty_get(&port->port); |
b0cda8c5 | 566 | |
033a3fb9 KL |
567 | tty_buffer_request_room(tty, urb->actual_length); |
568 | tty_insert_flip_string(tty, data, urb->actual_length); | |
569 | tty_flip_buffer_push(tty); | |
b0cda8c5 | 570 | |
4a90f09b | 571 | tty_kref_put(tty); |
b0cda8c5 EP |
572 | usb_serial_debug_data(debug, &port->dev, __func__, |
573 | urb->actual_length, data); | |
574 | } else { | |
7384a922 | 575 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 576 | " received\n", __func__); |
033a3fb9 KL |
577 | } |
578 | } | |
b0cda8c5 EP |
579 | |
580 | /* Resubmit urb so we continue receiving */ | |
581 | if (port->port.count && status != -ESHUTDOWN && status != -EPERM) { | |
e6929a90 | 582 | usb_mark_last_busy(port->serial->dev); |
b0cda8c5 EP |
583 | err = usb_submit_urb(urb, GFP_ATOMIC); |
584 | if (err) | |
585 | dev_err(&port->dev, "resubmit read urb failed." | |
586 | "(%d)\n", err); | |
587 | } | |
588 | ||
033a3fb9 KL |
589 | return; |
590 | } | |
591 | ||
033a3fb9 KL |
592 | static void sierra_instat_callback(struct urb *urb) |
593 | { | |
594 | int err; | |
17dd2215 | 595 | int status = urb->status; |
cdc97792 | 596 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
597 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
598 | struct usb_serial *serial = port->serial; | |
599 | ||
5d44b361 | 600 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 601 | urb, port, portdata); |
033a3fb9 | 602 | |
17dd2215 | 603 | if (status == 0) { |
033a3fb9 KL |
604 | struct usb_ctrlrequest *req_pkt = |
605 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
606 | ||
607 | if (!req_pkt) { | |
7384a922 KL |
608 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
609 | __func__); | |
033a3fb9 KL |
610 | return; |
611 | } | |
612 | if ((req_pkt->bRequestType == 0xA1) && | |
613 | (req_pkt->bRequest == 0x20)) { | |
614 | int old_dcd_state; | |
615 | unsigned char signals = *((unsigned char *) | |
616 | urb->transfer_buffer + | |
617 | sizeof(struct usb_ctrlrequest)); | |
4a90f09b | 618 | struct tty_struct *tty; |
033a3fb9 | 619 | |
5d44b361 | 620 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 621 | signals); |
033a3fb9 KL |
622 | |
623 | old_dcd_state = portdata->dcd_state; | |
624 | portdata->cts_state = 1; | |
625 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
626 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
627 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
628 | ||
4a90f09b AC |
629 | tty = tty_port_tty_get(&port->port); |
630 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 631 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
632 | tty_hangup(tty); |
633 | tty_kref_put(tty); | |
033a3fb9 | 634 | } else { |
5d44b361 | 635 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
636 | __func__, req_pkt->bRequestType, |
637 | req_pkt->bRequest); | |
033a3fb9 KL |
638 | } |
639 | } else | |
5d44b361 | 640 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
641 | |
642 | /* Resubmit urb so we continue receiving IRQ data */ | |
c76a23da | 643 | if (port->port.count && status != -ESHUTDOWN && status != -ENOENT) { |
e6929a90 | 644 | usb_mark_last_busy(serial->dev); |
033a3fb9 KL |
645 | urb->dev = serial->dev; |
646 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
647 | if (err) | |
c76a23da EP |
648 | dev_err(&port->dev, "%s: resubmit intr urb " |
649 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
650 | } |
651 | } | |
652 | ||
95da310e | 653 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 654 | { |
95da310e | 655 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
656 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
657 | unsigned long flags; | |
033a3fb9 | 658 | |
5d44b361 | 659 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
033a3fb9 | 660 | |
17c23274 GKH |
661 | /* try to give a good number back based on if we have any free urbs at |
662 | * this point in time */ | |
663 | spin_lock_irqsave(&portdata->lock, flags); | |
664 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
665 | spin_unlock_irqrestore(&portdata->lock, flags); | |
7384a922 | 666 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 667 | return 0; |
033a3fb9 | 668 | } |
17c23274 | 669 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 670 | |
17c23274 | 671 | return 2048; |
033a3fb9 KL |
672 | } |
673 | ||
b9a44bc1 | 674 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 675 | { |
9e85c5f6 | 676 | int i; |
b9a44bc1 | 677 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 678 | |
b9a44bc1 EP |
679 | for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++) |
680 | usb_kill_urb(portdata->in_urbs[i]); | |
033a3fb9 | 681 | |
b9a44bc1 EP |
682 | usb_kill_urb(port->interrupt_in_urb); |
683 | } | |
033a3fb9 | 684 | |
b9a44bc1 EP |
685 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
686 | { | |
687 | int ok_cnt; | |
688 | int err = -EINVAL; | |
689 | int i; | |
690 | struct urb *urb; | |
691 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 692 | |
b9a44bc1 EP |
693 | ok_cnt = 0; |
694 | for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++) { | |
033a3fb9 | 695 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 696 | if (!urb) |
033a3fb9 | 697 | continue; |
b9a44bc1 EP |
698 | err = usb_submit_urb(urb, mem_flags); |
699 | if (err) { | |
700 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
701 | __func__, err); | |
702 | } else { | |
703 | ok_cnt++; | |
033a3fb9 | 704 | } |
b9a44bc1 | 705 | } |
033a3fb9 | 706 | |
b9a44bc1 EP |
707 | if (ok_cnt && port->interrupt_in_urb) { |
708 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
709 | if (err) { | |
710 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
711 | __func__, err); | |
033a3fb9 KL |
712 | } |
713 | } | |
714 | ||
b9a44bc1 EP |
715 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
716 | return 0; | |
717 | else | |
718 | return err; | |
719 | } | |
720 | ||
721 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
722 | int dir, void *ctx, int len, | |
723 | gfp_t mem_flags, | |
724 | usb_complete_t callback) | |
725 | { | |
726 | struct urb *urb; | |
727 | u8 *buf; | |
728 | ||
729 | if (endpoint == -1) | |
730 | return NULL; | |
033a3fb9 | 731 | |
b9a44bc1 EP |
732 | urb = usb_alloc_urb(0, mem_flags); |
733 | if (urb == NULL) { | |
734 | dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", | |
735 | __func__, endpoint); | |
736 | return NULL; | |
9e85c5f6 | 737 | } |
b9a44bc1 EP |
738 | |
739 | buf = kmalloc(len, mem_flags); | |
740 | if (buf) { | |
741 | /* Fill URB using supplied data */ | |
742 | usb_fill_bulk_urb(urb, serial->dev, | |
743 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
744 | buf, len, callback, ctx); | |
745 | ||
746 | /* debug */ | |
747 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, | |
748 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
749 | } else { | |
750 | dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, | |
751 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
752 | ||
753 | sierra_release_urb(urb); | |
754 | urb = NULL; | |
755 | } | |
756 | ||
757 | return urb; | |
033a3fb9 KL |
758 | } |
759 | ||
b9a44bc1 | 760 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 761 | { |
b9a44bc1 | 762 | int i; |
033a3fb9 KL |
763 | struct usb_serial *serial = port->serial; |
764 | struct sierra_port_private *portdata; | |
e6929a90 ON |
765 | struct sierra_intf_private *intfdata = port->serial->private; |
766 | ||
033a3fb9 | 767 | |
b9a44bc1 | 768 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 769 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
770 | |
771 | portdata->rts_state = 0; | |
772 | portdata->dtr_state = 0; | |
033a3fb9 KL |
773 | |
774 | if (serial->dev) { | |
e33fe4d8 ON |
775 | mutex_lock(&serial->disc_mutex); |
776 | if (!serial->disconnected) | |
335f8514 | 777 | sierra_send_setup(port); |
e33fe4d8 | 778 | mutex_unlock(&serial->disc_mutex); |
e6929a90 ON |
779 | spin_lock_irq(&intfdata->susp_lock); |
780 | portdata->opened = 0; | |
781 | spin_unlock_irq(&intfdata->susp_lock); | |
782 | ||
b9a44bc1 EP |
783 | |
784 | /* Stop reading urbs */ | |
785 | sierra_stop_rx_urbs(port); | |
786 | /* .. and release them */ | |
787 | for (i = 0; i < N_IN_URB; i++) { | |
788 | sierra_release_urb(portdata->in_urbs[i]); | |
789 | portdata->in_urbs[i] = NULL; | |
790 | } | |
e6929a90 ON |
791 | usb_autopm_get_interface(serial->interface); |
792 | serial->interface->needs_remote_wakeup = 0; | |
335f8514 AC |
793 | } |
794 | } | |
795 | ||
a509a7e4 | 796 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) |
335f8514 | 797 | { |
b9a44bc1 EP |
798 | struct sierra_port_private *portdata; |
799 | struct usb_serial *serial = port->serial; | |
e6929a90 | 800 | struct sierra_intf_private *intfdata = serial->private; |
335f8514 | 801 | int i; |
b9a44bc1 EP |
802 | int err; |
803 | int endpoint; | |
804 | struct urb *urb; | |
805 | ||
806 | portdata = usb_get_serial_port_data(port); | |
807 | ||
5d44b361 | 808 | dev_dbg(&port->dev, "%s\n", __func__); |
b9a44bc1 EP |
809 | |
810 | /* Set some sane defaults */ | |
811 | portdata->rts_state = 1; | |
812 | portdata->dtr_state = 1; | |
813 | ||
814 | ||
815 | endpoint = port->bulk_in_endpointAddress; | |
816 | for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++) { | |
817 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, | |
818 | IN_BUFLEN, GFP_KERNEL, | |
819 | sierra_indat_callback); | |
820 | portdata->in_urbs[i] = urb; | |
821 | } | |
822 | /* clear halt condition */ | |
823 | usb_clear_halt(serial->dev, | |
824 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
825 | ||
826 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
827 | if (err) { | |
828 | /* get rid of everything as in close */ | |
829 | sierra_close(port); | |
830 | return err; | |
831 | } | |
832 | sierra_send_setup(port); | |
833 | ||
e6929a90 ON |
834 | serial->interface->needs_remote_wakeup = 1; |
835 | spin_lock_irq(&intfdata->susp_lock); | |
836 | portdata->opened = 1; | |
837 | spin_unlock_irq(&intfdata->susp_lock); | |
838 | usb_autopm_put_interface(serial->interface); | |
839 | ||
b9a44bc1 EP |
840 | return 0; |
841 | } | |
842 | ||
843 | ||
844 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
845 | { | |
335f8514 AC |
846 | struct usb_serial *serial = port->serial; |
847 | struct sierra_port_private *portdata; | |
033a3fb9 | 848 | |
335f8514 | 849 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
850 | portdata->rts_state = on; |
851 | portdata->dtr_state = on; | |
335f8514 AC |
852 | |
853 | if (serial->dev) { | |
b9a44bc1 EP |
854 | mutex_lock(&serial->disc_mutex); |
855 | if (!serial->disconnected) | |
856 | sierra_send_setup(port); | |
857 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 | 858 | } |
033a3fb9 KL |
859 | } |
860 | ||
033a3fb9 KL |
861 | static int sierra_startup(struct usb_serial *serial) |
862 | { | |
033a3fb9 KL |
863 | struct usb_serial_port *port; |
864 | struct sierra_port_private *portdata; | |
9e85c5f6 | 865 | int i; |
033a3fb9 | 866 | |
5d44b361 | 867 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 868 | |
228426ed | 869 | /* Set Device mode to D0 */ |
112225b1 KL |
870 | sierra_set_power_state(serial->dev, 0x0000); |
871 | ||
228426ed KL |
872 | /* Check NMEA and set */ |
873 | if (nmea) | |
874 | sierra_vsc_set_nmea(serial->dev, 1); | |
875 | ||
033a3fb9 KL |
876 | /* Now setup per port private data */ |
877 | for (i = 0; i < serial->num_ports; i++) { | |
878 | port = serial->port[i]; | |
879 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
880 | if (!portdata) { | |
7384a922 | 881 | dev_dbg(&port->dev, "%s: kmalloc for " |
5d44b361 | 882 | "sierra_port_private (%d) failed!.\n", |
7384a922 | 883 | __func__, i); |
17c23274 | 884 | return -ENOMEM; |
033a3fb9 | 885 | } |
17c23274 | 886 | spin_lock_init(&portdata->lock); |
e6929a90 ON |
887 | init_usb_anchor(&portdata->active); |
888 | init_usb_anchor(&portdata->delayed); | |
b9a44bc1 | 889 | /* Set the port private data pointer */ |
033a3fb9 | 890 | usb_set_serial_port_data(port, portdata); |
033a3fb9 KL |
891 | } |
892 | ||
17c23274 | 893 | return 0; |
033a3fb9 KL |
894 | } |
895 | ||
7bae0a07 | 896 | static void sierra_release(struct usb_serial *serial) |
033a3fb9 | 897 | { |
b9a44bc1 | 898 | int i; |
033a3fb9 KL |
899 | struct usb_serial_port *port; |
900 | struct sierra_port_private *portdata; | |
901 | ||
5d44b361 | 902 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 903 | |
033a3fb9 KL |
904 | for (i = 0; i < serial->num_ports; ++i) { |
905 | port = serial->port[i]; | |
f094e4f3 GKH |
906 | if (!port) |
907 | continue; | |
033a3fb9 | 908 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
909 | if (!portdata) |
910 | continue; | |
9e85c5f6 | 911 | kfree(portdata); |
033a3fb9 KL |
912 | } |
913 | } | |
914 | ||
cd604513 | 915 | #ifdef CONFIG_PM |
e6929a90 ON |
916 | static void stop_read_write_urbs(struct usb_serial *serial) |
917 | { | |
918 | int i, j; | |
919 | struct usb_serial_port *port; | |
920 | struct sierra_port_private *portdata; | |
921 | ||
922 | /* Stop reading/writing urbs */ | |
923 | for (i = 0; i < serial->num_ports; ++i) { | |
924 | port = serial->port[i]; | |
925 | portdata = usb_get_serial_port_data(port); | |
926 | for (j = 0; j < N_IN_URB; j++) | |
927 | usb_kill_urb(portdata->in_urbs[j]); | |
928 | usb_kill_anchored_urbs(&portdata->active); | |
929 | } | |
930 | } | |
931 | ||
932 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
933 | { | |
934 | struct sierra_intf_private *intfdata; | |
935 | int b; | |
936 | ||
937 | if (serial->dev->auto_pm) { | |
938 | intfdata = serial->private; | |
939 | spin_lock_irq(&intfdata->susp_lock); | |
940 | b = intfdata->in_flight; | |
941 | ||
942 | if (b) { | |
943 | spin_unlock_irq(&intfdata->susp_lock); | |
944 | return -EBUSY; | |
945 | } else { | |
946 | intfdata->suspended = 1; | |
947 | spin_unlock_irq(&intfdata->susp_lock); | |
948 | } | |
949 | } | |
950 | stop_read_write_urbs(serial); | |
951 | ||
952 | return 0; | |
953 | } | |
954 | ||
955 | static int sierra_resume(struct usb_serial *serial) | |
956 | { | |
957 | struct usb_serial_port *port; | |
958 | struct sierra_intf_private *intfdata = serial->private; | |
959 | struct sierra_port_private *portdata; | |
960 | struct urb *urb; | |
961 | int ec = 0; | |
962 | int i, err; | |
963 | ||
964 | spin_lock_irq(&intfdata->susp_lock); | |
965 | for (i = 0; i < serial->num_ports; i++) { | |
966 | port = serial->port[i]; | |
967 | portdata = usb_get_serial_port_data(port); | |
968 | ||
969 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { | |
970 | usb_anchor_urb(urb, &portdata->active); | |
971 | intfdata->in_flight++; | |
972 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
973 | if (err < 0) { | |
974 | intfdata->in_flight--; | |
975 | usb_unanchor_urb(urb); | |
976 | usb_scuttle_anchored_urbs(&portdata->delayed); | |
977 | break; | |
978 | } | |
979 | } | |
980 | ||
981 | if (portdata->opened) { | |
982 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
983 | if (err) | |
984 | ec++; | |
985 | } | |
986 | } | |
987 | intfdata->suspended = 0; | |
988 | spin_unlock_irq(&intfdata->susp_lock); | |
989 | ||
990 | return ec ? -EIO : 0; | |
991 | } | |
cd604513 AM |
992 | #else |
993 | #define sierra_suspend NULL | |
994 | #define sierra_resume NULL | |
995 | #endif | |
e6929a90 | 996 | |
228426ed | 997 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
998 | .driver = { |
999 | .owner = THIS_MODULE, | |
4e0fee82 | 1000 | .name = "sierra", |
964ee1de | 1001 | }, |
228426ed KL |
1002 | .description = "Sierra USB modem", |
1003 | .id_table = id_table, | |
d9b1b787 | 1004 | .usb_driver = &sierra_driver, |
228426ed KL |
1005 | .calc_num_ports = sierra_calc_num_ports, |
1006 | .probe = sierra_probe, | |
964ee1de GKH |
1007 | .open = sierra_open, |
1008 | .close = sierra_close, | |
335f8514 | 1009 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
1010 | .write = sierra_write, |
1011 | .write_room = sierra_write_room, | |
964ee1de | 1012 | .set_termios = sierra_set_termios, |
964ee1de GKH |
1013 | .tiocmget = sierra_tiocmget, |
1014 | .tiocmset = sierra_tiocmset, | |
1015 | .attach = sierra_startup, | |
7bae0a07 | 1016 | .release = sierra_release, |
e6929a90 ON |
1017 | .suspend = sierra_suspend, |
1018 | .resume = sierra_resume, | |
964ee1de GKH |
1019 | .read_int_callback = sierra_instat_callback, |
1020 | }; | |
1021 | ||
1022 | /* Functions used by new usb-serial code. */ | |
1023 | static int __init sierra_init(void) | |
1024 | { | |
1025 | int retval; | |
228426ed | 1026 | retval = usb_serial_register(&sierra_device); |
964ee1de | 1027 | if (retval) |
228426ed | 1028 | goto failed_device_register; |
964ee1de GKH |
1029 | |
1030 | ||
1031 | retval = usb_register(&sierra_driver); | |
1032 | if (retval) | |
1033 | goto failed_driver_register; | |
1034 | ||
c197a8db GKH |
1035 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" |
1036 | DRIVER_DESC "\n"); | |
964ee1de GKH |
1037 | |
1038 | return 0; | |
1039 | ||
1040 | failed_driver_register: | |
228426ed KL |
1041 | usb_serial_deregister(&sierra_device); |
1042 | failed_device_register: | |
964ee1de GKH |
1043 | return retval; |
1044 | } | |
1045 | ||
1046 | static void __exit sierra_exit(void) | |
1047 | { | |
9660ea36 | 1048 | usb_deregister(&sierra_driver); |
228426ed | 1049 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
1050 | } |
1051 | ||
1052 | module_init(sierra_init); | |
1053 | module_exit(sierra_exit); | |
1054 | ||
033a3fb9 KL |
1055 | MODULE_AUTHOR(DRIVER_AUTHOR); |
1056 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1057 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 1058 | MODULE_LICENSE("GPL"); |
033a3fb9 | 1059 | |
4e0fee82 | 1060 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
1061 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
1062 | ||
033a3fb9 KL |
1063 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
1064 | MODULE_PARM_DESC(debug, "Debug messages"); |