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USB: OMAP: OHCI: hc_driver's stop method should call ohci_stop
[net-next-2.6.git] / drivers / usb / serial / ftdi_sio.c
CommitLineData
1da177e4
LT		 1/*
2 * USB FTDI SIO driver
3 *
5c09d144
DB		 4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
1da177e4
LT		 6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
5c09d144
DB		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
1da177e4 14 *
464cbb24
AC		 15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
1da177e4
LT		 17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
504b55cc
GKH		 21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 23 *
24 */
25
26/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27/* Thanx to FTDI for so kindly providing details of the protocol required */
28/* to talk to the device */
464cbb24
AC		 29/* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
1da177e4 31
1da177e4
LT		 32#include <linux/kernel.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/slab.h>
405f5571 36#include <linux/smp_lock.h>
1da177e4
LT		 37#include <linux/tty.h>
38#include <linux/tty_driver.h>
39#include <linux/tty_flip.h>
40#include <linux/module.h>
41#include <linux/spinlock.h>
464cbb24 42#include <linux/uaccess.h>
1da177e4
LT		 43#include <linux/usb.h>
44#include <linux/serial.h>
a969888c 45#include <linux/usb/serial.h>
1da177e4
LT		 46#include "ftdi_sio.h"
47
48/*
49 * Version Information
50 */
094c2e6d 51#define DRIVER_VERSION "v1.5.0"
1da177e4
LT		 52#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
53#define DRIVER_DESC "USB FTDI Serial Converters Driver"
54
55static int debug;
fdcb0a0f
IA		 56static __u16 vendor = FTDI_VID;
57static __u16 product;
1da177e4 58
0ffbbe25 59struct ftdi_private {
c45d6320 60 struct kref kref;
0ffbbe25 61 ftdi_chip_type_t chip_type;
464cbb24 62 /* type of device, either SIO or FT8U232AM */
0ffbbe25 63 int baud_base; /* baud base clock for divisor setting */
464cbb24
AC		 64 int custom_divisor; /* custom_divisor kludge, this is for
65 baud_base (different from what goes to the
66 chip!) */
0ffbbe25 67 __u16 last_set_data_urb_value ;
464cbb24
AC		 68 /* the last data state set - needed for doing
69 * a break
70 */
71 int write_offset; /* This is the offset in the usb data block to
72 * write the serial data - it varies between
73 * devices
0ffbbe25
ON		 74 */
75 int flags; /* some ASYNC_xxxx flags are supported */
76 unsigned long last_dtr_rts; /* saved modem control outputs */
464cbb24 77 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
0ffbbe25
ON		 78 char prev_status, diff_status; /* Used for TIOCMIWAIT */
79 __u8 rx_flags; /* receive state flags (throttling) */
80 spinlock_t rx_lock; /* spinlock for receive state */
81 struct delayed_work rx_work;
82 struct usb_serial_port *port;
83 int rx_processed;
84 unsigned long rx_bytes;
85
094c2e6d
MA		 86 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface
87 (0 for FT232/245) */
0ffbbe25 88
464cbb24
AC		 89 speed_t force_baud; /* if non-zero, force the baud rate to
90 this value */
91 int force_rtscts; /* if non-zero, force RTS-CTS to always
92 be enabled */
0ffbbe25 93
557aaa7f 94 unsigned int latency; /* latency setting in use */
0ffbbe25
ON		 95 spinlock_t tx_lock; /* spinlock for transmit state */
96 unsigned long tx_bytes;
97 unsigned long tx_outstanding_bytes;
98 unsigned long tx_outstanding_urbs;
895f28ba 99 unsigned short max_packet_size;
0ffbbe25
ON		 100};
101
8f977e42
IA		 102/* struct ftdi_sio_quirk is used by devices requiring special attention. */
103struct ftdi_sio_quirk {
fa91d43b 104 int (*probe)(struct usb_serial *);
464cbb24
AC		 105 /* Special settings for probed ports. */
106 void (*port_probe)(struct ftdi_private *);
8f977e42
IA		 107};
108
464cbb24
AC		 109static int ftdi_jtag_probe(struct usb_serial *serial);
110static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
b760dac2 111static int ftdi_NDI_device_setup(struct usb_serial *serial);
464cbb24
AC		 112static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
113static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 114
20734345
HW		 115static struct ftdi_sio_quirk ftdi_jtag_quirk = {
116 .probe = ftdi_jtag_probe,
fa91d43b
TL		 117};
118
546d7eec
KV		 119static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
120 .probe = ftdi_mtxorb_hack_setup,
121};
122
b760dac2
MG		 123static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
124 .probe = ftdi_NDI_device_setup,
125};
126
8f977e42 127static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 128 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 129};
130
131static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 132 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 133};
134
135/*
136 * The 8U232AM has the same API as the sio except for:
137 * - it can support MUCH higher baudrates; up to:
138 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
139 * o 230400 at 12MHz
140 * so .. 8U232AM's baudrate setting codes are different
141 * - it has a two byte status code.
142 * - it returns characters every 16ms (the FTDI does it every 40ms)
143 *
144 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
145 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
146 * combinations in both tables.
8f977e42
IA		 147 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
148 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 149 */
150
151
1da177e4
LT		 152
153static struct usb_device_id id_table_combined [] = {
2011e924
JD		 154 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
01ba0856 156 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
6e1ab3ed
PM		 157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 165 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 166 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 167 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 168 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 169 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 170 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 173 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 174 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
094c2e6d 175 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
c0f8d561 176 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 177 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 178 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
1da177e4
LT		 179 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
180 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
f2ee6955 181 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
1da177e4
LT		 182 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
191 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
194 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
195 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
198 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
199 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
b34efeea 200 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
464cbb24
AC		 201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 241 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 247 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 287 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 289 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 291 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 293 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 295 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 297 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
463 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
464 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 465 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 466 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 467 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 468 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
514 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
515 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
516 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
517 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 518 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
519 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
520 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
521 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 522 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
523 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
524 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
525 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 542 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 543 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 544 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 546 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 547 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 548 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 556 /*
42f8aa94
PS		 557 * Due to many user requests for multiple ELV devices we enable
558 * them by default.
e6ac4a40 559 */
42f8aa94
PS		 560 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 578 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 579 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 580 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
5c09d144
DB		 581 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
582 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
583 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
584 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
585 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
586 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
587 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 588 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
9d37ff64
JC		 589 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
590 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
1da177e4
LT		 592 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
593 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
594 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
595 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 596 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 597 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
c3d36c45 598 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
ef31fec0 599 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 600 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 601 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
602 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
603 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
604 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 605 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 607 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
608 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
609 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
610 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
611 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
612 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
613 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
614 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 615 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 616 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 617 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 619 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
620 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 621 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
622 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
623 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
624 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 625 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
626 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 627 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 628 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
629 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 630 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
631 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 632 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 633 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 634 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 635 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 636 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
637 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 638 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 639 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 640 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 641 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
642 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 643 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 644 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 645 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 646 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 647 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 648 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 649 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 650 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 651 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 652 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 653 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
654 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
655 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 656 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
b760dac2
MG		 657 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
658 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
659 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
660 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
661 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
662 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
663 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
664 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
665 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
666 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
822c7ef4 667 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 668 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 669 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 670 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 671 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 672 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 673 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 674 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
675 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
676 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
677 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
678 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 679 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
680 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
681 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
682 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
14511412
KH		 683 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
684 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 685 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 686 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 687 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
96285cb8
GC		 688 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
689 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 690 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 691 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
7f82b6dd
AW		 692 { USB_DEVICE(ATMEL_VID, STK541_PID) },
693 { USB_DEVICE(DE_VID, STB_PID) },
694 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 695 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
696 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 697 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 698 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
699 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
d46130ab 700 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
fdcb0a0f
IA		 701 { }, /* Optional parameter entry */
702 { } /* Terminating entry */
1da177e4
LT		 703};
704
464cbb24 705MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 706
707static struct usb_driver ftdi_driver = {
708 .name = "ftdi_sio",
709 .probe = usb_serial_probe,
710 .disconnect = usb_serial_disconnect,
711 .id_table = id_table_combined,
5c09d144 712 .no_dynamic_id = 1,
1da177e4
LT		 713};
714
4c4c9432 715static const char *ftdi_chip_name[] = {
1da177e4
LT		 716 [SIO] = "SIO", /* the serial part of FT8U100AX */
717 [FT8U232AM] = "FT8U232AM",
718 [FT232BM] = "FT232BM",
719 [FT2232C] = "FT2232C",
d8b21606 720 [FT232RL] = "FT232RL",
094c2e6d
MA		 721 [FT2232H] = "FT2232H",
722 [FT4232H] = "FT4232H"
1da177e4
LT		 723};
724
725
726/* Constants for read urb and write urb */
727#define BUFSZ 512
1da177e4
LT		 728
729/* rx_flags */
730#define THROTTLED 0x01
731#define ACTUALLY_THROTTLED 0x02
732
1da177e4
LT		 733/* Used for TIOCMIWAIT */
734#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
735#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
736/* End TIOCMIWAIT */
737
bbc5d276
RK		 738#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
739 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 740
741/* function prototypes for a FTDI serial converter */
464cbb24
AC		 742static int ftdi_sio_probe(struct usb_serial *serial,
743 const struct usb_device_id *id);
464cbb24
AC		 744static int ftdi_sio_port_probe(struct usb_serial_port *port);
745static int ftdi_sio_port_remove(struct usb_serial_port *port);
746static int ftdi_open(struct tty_struct *tty,
747 struct usb_serial_port *port, struct file *filp);
335f8514
AC		 748static void ftdi_close(struct usb_serial_port *port);
749static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 750static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
751 const unsigned char *buf, int count);
752static int ftdi_write_room(struct tty_struct *tty);
753static int ftdi_chars_in_buffer(struct tty_struct *tty);
754static void ftdi_write_bulk_callback(struct urb *urb);
755static void ftdi_read_bulk_callback(struct urb *urb);
756static void ftdi_process_read(struct work_struct *work);
757static void ftdi_set_termios(struct tty_struct *tty,
758 struct usb_serial_port *port, struct ktermios *old);
759static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
760static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
761 unsigned int set, unsigned int clear);
762static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
763 unsigned int cmd, unsigned long arg);
764static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
765static void ftdi_throttle(struct tty_struct *tty);
766static void ftdi_unthrottle(struct tty_struct *tty);
767
768static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
769static unsigned short int ftdi_232am_baud_to_divisor(int baud);
770static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
771static __u32 ftdi_232bm_baud_to_divisor(int baud);
094c2e6d
MA		 772static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
773static __u32 ftdi_2232h_baud_to_divisor(int baud);
1da177e4 774
ea65370d 775static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 776 .driver = {
777 .owner = THIS_MODULE,
269bda1c 778 .name = "ftdi_sio",
18fcac35 779 },
269bda1c 780 .description = "FTDI USB Serial Device",
d9b1b787 781 .usb_driver = &ftdi_driver ,
8f977e42 782 .id_table = id_table_combined,
1da177e4 783 .num_ports = 1,
8f977e42 784 .probe = ftdi_sio_probe,
12bdbe03
JR		 785 .port_probe = ftdi_sio_port_probe,
786 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 787 .open = ftdi_open,
788 .close = ftdi_close,
335f8514 789 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 790 .throttle = ftdi_throttle,
791 .unthrottle = ftdi_unthrottle,
792 .write = ftdi_write,
793 .write_room = ftdi_write_room,
794 .chars_in_buffer = ftdi_chars_in_buffer,
795 .read_bulk_callback = ftdi_read_bulk_callback,
796 .write_bulk_callback = ftdi_write_bulk_callback,
797 .tiocmget = ftdi_tiocmget,
798 .tiocmset = ftdi_tiocmset,
799 .ioctl = ftdi_ioctl,
800 .set_termios = ftdi_set_termios,
801 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 802};
803
1da177e4
LT		 804
805#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 806#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 807
808/* High and low are for DTR, RTS etc etc */
809#define HIGH 1
810#define LOW 0
811
22465400
IA		 812/* number of outstanding urbs to prevent userspace DoS from happening */
813#define URB_UPPER_LIMIT 42
814
1da177e4
LT		 815/*
816 * ***************************************************************************
fa91d43b 817 * Utility functions
1da177e4
LT		 818 * ***************************************************************************
819 */
820
821static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
822{
823 unsigned short int divisor;
464cbb24
AC		 824 /* divisor shifted 3 bits to the left */
825 int divisor3 = base / 2 / baud;
826 if ((divisor3 & 0x7) == 7)
827 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 828 divisor = divisor3 >> 3;
829 divisor3 &= 0x7;
464cbb24
AC		 830 if (divisor3 == 1)
831 divisor |= 0xc000;
832 else if (divisor3 >= 4)
833 divisor |= 0x4000;
834 else if (divisor3 != 0)
835 divisor |= 0x8000;
836 else if (divisor == 1)
837 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 838 return divisor;
839}
840
841static unsigned short int ftdi_232am_baud_to_divisor(int baud)
842{
464cbb24 843 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 844}
845
846static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
847{
848 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
849 __u32 divisor;
464cbb24
AC		 850 /* divisor shifted 3 bits to the left */
851 int divisor3 = base / 2 / baud;
1da177e4
LT		 852 divisor = divisor3 >> 3;
853 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
854 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 855 if (divisor == 1)
856 divisor = 0;
857 else if (divisor == 0x4001)
858 divisor = 1;
1da177e4
LT		 859 return divisor;
860}
861
862static __u32 ftdi_232bm_baud_to_divisor(int baud)
863{
464cbb24 864 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 865}
866
094c2e6d
MA		 867static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
868{
869 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
870 __u32 divisor;
871 int divisor3;
872
873 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
874 divisor3 = (base / 10 / baud) * 8;
875
876 divisor = divisor3 >> 3;
877 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
878 /* Deal with special cases for highest baud rates. */
879 if (divisor == 1)
880 divisor = 0;
881 else if (divisor == 0x4001)
882 divisor = 1;
883 /*
884 * Set this bit to turn off a divide by 2.5 on baud rate generator
885 * This enables baud rates up to 12Mbaud but cannot reach below 1200
886 * baud with this bit set
887 */
888 divisor |= 0x00020000;
889 return divisor;
890}
891
892static __u32 ftdi_2232h_baud_to_divisor(int baud)
893{
894 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
895}
896
74ede0ff
IA		 897#define set_mctrl(port, set) update_mctrl((port), (set), 0)
898#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
899
464cbb24
AC		 900static int update_mctrl(struct usb_serial_port *port, unsigned int set,
901 unsigned int clear)
1da177e4
LT		 902{
903 struct ftdi_private *priv = usb_get_serial_port_data(port);
904 char *buf;
74ede0ff 905 unsigned urb_value;
1da177e4 906 int rv;
1da177e4 907
74ede0ff 908 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 909 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 910 return 0; /* no change */
911 }
1da177e4 912
1da177e4 913 buf = kmalloc(1, GFP_NOIO);
9b0f2582 914 if (!buf)
1da177e4 915 return -ENOMEM;
74ede0ff
IA		 916
917 clear &= ~set; /* 'set' takes precedence over 'clear' */
918 urb_value = 0;
919 if (clear & TIOCM_DTR)
920 urb_value |= FTDI_SIO_SET_DTR_LOW;
921 if (clear & TIOCM_RTS)
922 urb_value |= FTDI_SIO_SET_RTS_LOW;
923 if (set & TIOCM_DTR)
924 urb_value |= FTDI_SIO_SET_DTR_HIGH;
925 if (set & TIOCM_RTS)
926 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 927 rv = usb_control_msg(port->serial->dev,
928 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 929 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 930 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 931 urb_value, priv->interface,
1da177e4
LT		 932 buf, 0, WDR_TIMEOUT);
933
934 kfree(buf);
74ede0ff 935 if (rv < 0) {
43b11d33 936 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 937 __func__,
74ede0ff
IA		 938 (set & TIOCM_DTR) ? "HIGH" :
939 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
940 (set & TIOCM_RTS) ? "HIGH" :
941 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
942 } else {
441b62c1 943 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 944 (set & TIOCM_DTR) ? "HIGH" :
945 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
946 (set & TIOCM_RTS) ? "HIGH" :
947 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 948 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 949 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
950 }
1da177e4
LT		 951 return rv;
952}
953
954
464cbb24
AC		 955static __u32 get_ftdi_divisor(struct tty_struct *tty,
956 struct usb_serial_port *port)
1da177e4
LT		 957{ /* get_ftdi_divisor */
958 struct ftdi_private *priv = usb_get_serial_port_data(port);
959 __u32 div_value = 0;
960 int div_okay = 1;
961 int baud;
962
963 /*
464cbb24
AC		 964 * The logic involved in setting the baudrate can be cleanly split into
965 * 3 steps.
1da177e4 966 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 967 * 2. If these are not enough, you can set any speed using alt_speed as
968 * follows:
1da177e4
LT		 969 * - set tty->termios->c_cflag speed to B38400
970 * - set your real speed in tty->alt_speed; it gets ignored when
971 * alt_speed==0, (or)
464cbb24
AC		 972 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
973 * follows:
974 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
975 * this just sets alt_speed to (HI: 57600, VHI: 115200,
976 * SHI: 230400, WARP: 460800)
1da177e4
LT		 977 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
978 * 3. You can also set baud rate by setting custom divisor as follows
979 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 980 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
981 * follows:
1da177e4
LT		 982 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
983 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 984 * ** Step 3 is done courtesy of code borrowed from serial.c
985 * I should really spend some time and separate + move this common
986 * code to serial.c, it is replicated in nearly every serial driver
987 * you see.
1da177e4
LT		 988 */
989
464cbb24
AC		 990 /* 1. Get the baud rate from the tty settings, this observes
991 alt_speed hack */
1da177e4 992
95da310e 993 baud = tty_get_baud_rate(tty);
441b62c1 994 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 995
464cbb24
AC		 996 /* 2. Observe async-compatible custom_divisor hack, update baudrate
997 if needed */
1da177e4
LT		 998
999 if (baud == 38400 &&
1000 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1001 (priv->custom_divisor)) {
1002 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 1003 dbg("%s - custom divisor %d sets baud rate to %d",
1004 __func__, priv->custom_divisor, baud);
1da177e4
LT		 1005 }
1006
1007 /* 3. Convert baudrate to device-specific divisor */
1008
464cbb24
AC		 1009 if (!baud)
1010 baud = 9600;
1011 switch (priv->chip_type) {
1da177e4 1012 case SIO: /* SIO chip */
464cbb24 1013 switch (baud) {
1da177e4
LT		 1014 case 300: div_value = ftdi_sio_b300; break;
1015 case 600: div_value = ftdi_sio_b600; break;
1016 case 1200: div_value = ftdi_sio_b1200; break;
1017 case 2400: div_value = ftdi_sio_b2400; break;
1018 case 4800: div_value = ftdi_sio_b4800; break;
1019 case 9600: div_value = ftdi_sio_b9600; break;
1020 case 19200: div_value = ftdi_sio_b19200; break;
1021 case 38400: div_value = ftdi_sio_b38400; break;
1022 case 57600: div_value = ftdi_sio_b57600; break;
1023 case 115200: div_value = ftdi_sio_b115200; break;
1024 } /* baud */
1025 if (div_value == 0) {
464cbb24
AC		 1026 dbg("%s - Baudrate (%d) requested is not supported",
1027 __func__, baud);
1da177e4 1028 div_value = ftdi_sio_b9600;
bd5e47cc 1029 baud = 9600;
1da177e4
LT		 1030 div_okay = 0;
1031 }
1032 break;
1033 case FT8U232AM: /* 8U232AM chip */
1034 if (baud <= 3000000) {
1035 div_value = ftdi_232am_baud_to_divisor(baud);
1036 } else {
464cbb24 1037 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 1038 baud = 9600;
1da177e4
LT		 1039 div_value = ftdi_232am_baud_to_divisor(9600);
1040 div_okay = 0;
1041 }
1042 break;
1043 case FT232BM: /* FT232BM chip */
1044 case FT2232C: /* FT2232C chip */
3b009c63 1045 case FT232RL:
1da177e4 1046 if (baud <= 3000000) {
b760dac2
MG		 1047 __u16 product_id = le16_to_cpu(
1048 port->serial->dev->descriptor.idProduct);
1049 if (((FTDI_NDI_HUC_PID == product_id) ||
1050 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1051 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1052 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1053 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1054 (baud == 19200)) {
1055 baud = 1200000;
1056 }
1da177e4
LT		 1057 div_value = ftdi_232bm_baud_to_divisor(baud);
1058 } else {
464cbb24 1059 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 1060 div_value = ftdi_232bm_baud_to_divisor(9600);
1061 div_okay = 0;
669a6db1 1062 baud = 9600;
1da177e4
LT		 1063 }
1064 break;
094c2e6d
MA		 1065 case FT2232H: /* FT2232H chip */
1066 case FT4232H: /* FT4232H chip */
1067 if ((baud <= 12000000) & (baud >= 1200)) {
1068 div_value = ftdi_2232h_baud_to_divisor(baud);
1069 } else if (baud < 1200) {
1070 div_value = ftdi_232bm_baud_to_divisor(baud);
1071 } else {
1072 dbg("%s - Baud rate too high!", __func__);
1073 div_value = ftdi_232bm_baud_to_divisor(9600);
1074 div_okay = 0;
1075 baud = 9600;
1076 }
1077 break;
1da177e4
LT		 1078 } /* priv->chip_type */
1079
1080 if (div_okay) {
1081 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1082 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1083 ftdi_chip_name[priv->chip_type]);
1084 }
1085
95da310e 1086 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1087 return div_value;
1da177e4
LT		 1088}
1089
95da310e
AC		 1090static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1091{
1092 struct ftdi_private *priv = usb_get_serial_port_data(port);
1093 char *buf;
464cbb24 1094 __u16 urb_value;
95da310e
AC		 1095 __u16 urb_index;
1096 __u32 urb_index_value;
1097 int rv;
1098
1099 buf = kmalloc(1, GFP_NOIO);
1100 if (!buf)
1101 return -ENOMEM;
1102
1103 urb_index_value = get_ftdi_divisor(tty, port);
1104 urb_value = (__u16)urb_index_value;
1105 urb_index = (__u16)(urb_index_value >> 16);
1106 if (priv->interface) { /* FT2232C */
1107 urb_index = (__u16)((urb_index << 8) | priv->interface);
1108 }
1109
1110 rv = usb_control_msg(port->serial->dev,
1111 usb_sndctrlpipe(port->serial->dev, 0),
1112 FTDI_SIO_SET_BAUDRATE_REQUEST,
1113 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1114 urb_value, urb_index,
1115 buf, 0, WDR_SHORT_TIMEOUT);
1116
1117 kfree(buf);
1118 return rv;
1119}
1120
557aaa7f
AC		 1121static int write_latency_timer(struct usb_serial_port *port)
1122{
1123 struct ftdi_private *priv = usb_get_serial_port_data(port);
1124 struct usb_device *udev = port->serial->dev;
1125 char buf[1];
1126 int rv = 0;
1127 int l = priv->latency;
1128
1129 if (priv->flags & ASYNC_LOW_LATENCY)
1130 l = 1;
1131
1132 dbg("%s: setting latency timer = %i", __func__, l);
1133
1134 rv = usb_control_msg(udev,
1135 usb_sndctrlpipe(udev, 0),
1136 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1137 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1138 l, priv->interface,
1139 buf, 0, WDR_TIMEOUT);
95da310e 1140
557aaa7f
AC		 1141 if (rv < 0)
1142 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1143 return rv;
1144}
1145
1146static int read_latency_timer(struct usb_serial_port *port)
1147{
1148 struct ftdi_private *priv = usb_get_serial_port_data(port);
1149 struct usb_device *udev = port->serial->dev;
1150 unsigned short latency = 0;
1151 int rv = 0;
1152
1153
1154 dbg("%s", __func__);
1155
1156 rv = usb_control_msg(udev,
1157 usb_rcvctrlpipe(udev, 0),
1158 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1159 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1160 0, priv->interface,
1161 (char *) &latency, 1, WDR_TIMEOUT);
1162
1163 if (rv < 0) {
1164 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1165 return -EIO;
1166 }
1167 return latency;
1168}
1da177e4 1169
464cbb24
AC		 1170static int get_serial_info(struct usb_serial_port *port,
1171 struct serial_struct __user *retinfo)
1da177e4
LT		 1172{
1173 struct ftdi_private *priv = usb_get_serial_port_data(port);
1174 struct serial_struct tmp;
1175
1176 if (!retinfo)
1177 return -EFAULT;
1178 memset(&tmp, 0, sizeof(tmp));
1179 tmp.flags = priv->flags;
1180 tmp.baud_base = priv->baud_base;
1181 tmp.custom_divisor = priv->custom_divisor;
1182 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1183 return -EFAULT;
1184 return 0;
1185} /* get_serial_info */
1186
1187
95da310e 1188static int set_serial_info(struct tty_struct *tty,
464cbb24 1189 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1190{ /* set_serial_info */
1191 struct ftdi_private *priv = usb_get_serial_port_data(port);
1192 struct serial_struct new_serial;
1193 struct ftdi_private old_priv;
1194
1195 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1196 return -EFAULT;
6b447f04
AC		 1197
1198 lock_kernel();
464cbb24 1199 old_priv = *priv;
1da177e4
LT		 1200
1201 /* Do error checking and permission checking */
1202
1203 if (!capable(CAP_SYS_ADMIN)) {
1204 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1205 (priv->flags & ~ASYNC_USR_MASK))) {
1206 unlock_kernel();
1da177e4 1207 return -EPERM;
64905b48 1208 }
1da177e4
LT		 1209 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1210 (new_serial.flags & ASYNC_USR_MASK));
1211 priv->custom_divisor = new_serial.custom_divisor;
1212 goto check_and_exit;
1213 }
1214
1215 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1216 (new_serial.baud_base < 9600)) {
1217 unlock_kernel();
1da177e4 1218 return -EINVAL;
6b447f04 1219 }
1da177e4
LT		 1220
1221 /* Make the changes - these are privileged changes! */
1222
1223 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1224 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1225 priv->custom_divisor = new_serial.custom_divisor;
1226
95da310e 1227 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
557aaa7f 1228 write_latency_timer(port);
1da177e4
LT		 1229
1230check_and_exit:
1231 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1232 (priv->flags & ASYNC_SPD_MASK)) {
1233 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1234 tty->alt_speed = 57600;
1da177e4 1235 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1236 tty->alt_speed = 115200;
1da177e4 1237 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1238 tty->alt_speed = 230400;
1da177e4 1239 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1240 tty->alt_speed = 460800;
1da177e4 1241 else
95da310e 1242 tty->alt_speed = 0;
1da177e4
LT		 1243 }
1244 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1245 (priv->flags & ASYNC_SPD_MASK)) ||
1246 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1247 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1248 unlock_kernel();
95da310e 1249 change_speed(tty, port);
1da177e4 1250 }
6b447f04
AC		 1251 else
1252 unlock_kernel();
95da310e 1253 return 0;
1da177e4
LT		 1254
1255} /* set_serial_info */
1256
1257
8f977e42
IA		 1258/* Determine type of FTDI chip based on USB config and descriptor. */
1259static void ftdi_determine_type(struct usb_serial_port *port)
1260{
1261 struct ftdi_private *priv = usb_get_serial_port_data(port);
1262 struct usb_serial *serial = port->serial;
1263 struct usb_device *udev = serial->dev;
1264 unsigned version;
1265 unsigned interfaces;
1266
1267 /* Assume it is not the original SIO device for now. */
f5e09b7c 1268 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1269 priv->write_offset = 0;
1270
1271 version = le16_to_cpu(udev->descriptor.bcdDevice);
1272 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1273 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1274 version, interfaces);
1275 if (interfaces > 1) {
1276 int inter;
1277
094c2e6d
MA		 1278 /* Multiple interfaces.*/
1279 if (version == 0x0800) {
1280 priv->chip_type = FT4232H;
1281 /* Hi-speed - baud clock runs at 120MHz */
1282 priv->baud_base = 120000000 / 2;
1283 } else if (version == 0x0700) {
1284 priv->chip_type = FT2232H;
1285 /* Hi-speed - baud clock runs at 120MHz */
1286 priv->baud_base = 120000000 / 2;
1287 } else
1288 priv->chip_type = FT2232C;
1289
8f977e42
IA		 1290 /* Determine interface code. */
1291 inter = serial->interface->altsetting->desc.bInterfaceNumber;
094c2e6d
MA		 1292 if (inter == 0) {
1293 priv->interface = INTERFACE_A;
1294 } else if (inter == 1) {
1295 priv->interface = INTERFACE_B;
1296 } else if (inter == 2) {
1297 priv->interface = INTERFACE_C;
1298 } else if (inter == 3) {
1299 priv->interface = INTERFACE_D;
1300 }
8f977e42
IA		 1301 /* BM-type devices have a bug where bcdDevice gets set
1302 * to 0x200 when iSerialNumber is 0. */
1303 if (version < 0x500) {
1304 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1305 __func__);
8f977e42
IA		 1306 }
1307 } else if (version < 0x200) {
1308 /* Old device. Assume its the original SIO. */
1309 priv->chip_type = SIO;
1310 priv->baud_base = 12000000 / 16;
1311 priv->write_offset = 1;
1312 } else if (version < 0x400) {
1313 /* Assume its an FT8U232AM (or FT8U245AM) */
1314 /* (It might be a BM because of the iSerialNumber bug,
1315 * but it will still work as an AM device.) */
1316 priv->chip_type = FT8U232AM;
3b009c63 1317 } else if (version < 0x600) {
8f977e42
IA		 1318 /* Assume its an FT232BM (or FT245BM) */
1319 priv->chip_type = FT232BM;
3b009c63
DB		 1320 } else {
1321 /* Assume its an FT232R */
1322 priv->chip_type = FT232RL;
8f977e42 1323 }
c197a8db 1324 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1325}
1326
1327
895f28ba
MA		 1328/* Determine the maximum packet size for the device. This depends on the chip
1329 * type and the USB host capabilities. The value should be obtained from the
1330 * device descriptor as the chip will use the appropriate values for the host.*/
1331static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1332{
1333 struct ftdi_private *priv = usb_get_serial_port_data(port);
1334 struct usb_serial *serial = port->serial;
1335 struct usb_device *udev = serial->dev;
1336
1337 struct usb_interface *interface = serial->interface;
1338 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1339
1340 unsigned num_endpoints;
1341 int i = 0;
1342
1343 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1344 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1345
1346 /* NOTE: some customers have programmed FT232R/FT245R devices
1347 * with an endpoint size of 0 - not good. In this case, we
1348 * want to override the endpoint descriptor setting and use a
1349 * value of 64 for wMaxPacketSize */
1350 for (i = 0; i < num_endpoints; i++) {
1351 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1352 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1353 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1354 if (ep_desc->wMaxPacketSize == 0) {
1355 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1356 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1357 }
1358 }
1359
1360 /* set max packet size based on descriptor */
1361 priv->max_packet_size = ep_desc->wMaxPacketSize;
1362
1363 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1364}
1365
1366
1da177e4
LT		 1367/*
1368 * ***************************************************************************
1369 * Sysfs Attribute
1370 * ***************************************************************************
1371 */
1372
464cbb24
AC		 1373static ssize_t show_latency_timer(struct device *dev,
1374 struct device_attribute *attr, char *buf)
1da177e4
LT		 1375{
1376 struct usb_serial_port *port = to_usb_serial_port(dev);
1377 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1378 if (priv->flags & ASYNC_LOW_LATENCY)
1379 return sprintf(buf, "1\n");
1380 else
1381 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1382}
1383
557aaa7f 1384
1da177e4 1385/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1386static ssize_t store_latency_timer(struct device *dev,
1387 struct device_attribute *attr, const char *valbuf,
1388 size_t count)
1da177e4
LT		 1389{
1390 struct usb_serial_port *port = to_usb_serial_port(dev);
1391 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4
LT		 1392 int v = simple_strtoul(valbuf, NULL, 10);
1393 int rv = 0;
5c09d144 1394
557aaa7f
AC		 1395 priv->latency = v;
1396 rv = write_latency_timer(port);
1397 if (rv < 0)
1da177e4 1398 return -EIO;
1da177e4
LT		 1399 return count;
1400}
1401
1402/* Write an event character directly to the FTDI register. The ASCII
1403 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1404static ssize_t store_event_char(struct device *dev,
1405 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1406{
1407 struct usb_serial_port *port = to_usb_serial_port(dev);
1408 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1409 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1410 char buf[1];
1411 int v = simple_strtoul(valbuf, NULL, 10);
1412 int rv = 0;
5c09d144 1413
441b62c1 1414 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1415
1da177e4
LT		 1416 rv = usb_control_msg(udev,
1417 usb_sndctrlpipe(udev, 0),
1418 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1419 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1420 v, priv->interface,
1da177e4 1421 buf, 0, WDR_TIMEOUT);
5c09d144 1422
1da177e4
LT		 1423 if (rv < 0) {
1424 dbg("Unable to write event character: %i", rv);
1425 return -EIO;
1426 }
5c09d144 1427
1da177e4
LT		 1428 return count;
1429}
1430
464cbb24
AC		 1431static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1432 store_latency_timer);
1da177e4
LT		 1433static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1434
12bdbe03 1435static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1436{
12bdbe03 1437 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1438 int retval = 0;
1da177e4 1439
464cbb24 1440 dbg("%s", __func__);
13f4db9e 1441
1da177e4
LT		 1442 /* XXX I've no idea if the original SIO supports the event_char
1443 * sysfs parameter, so I'm playing it safe. */
1444 if (priv->chip_type != SIO) {
1445 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1446 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1447 if ((!retval) &&
97cd49eb
SM		 1448 (priv->chip_type == FT232BM ||
1449 priv->chip_type == FT2232C ||
094c2e6d
MA		 1450 priv->chip_type == FT232RL ||
1451 priv->chip_type == FT2232H ||
1452 priv->chip_type == FT4232H)) {
12bdbe03 1453 retval = device_create_file(&port->dev,
13f4db9e 1454 &dev_attr_latency_timer);
1da177e4
LT		 1455 }
1456 }
13f4db9e 1457 return retval;
1da177e4
LT		 1458}
1459
12bdbe03 1460static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1461{
12bdbe03 1462 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1463
464cbb24 1464 dbg("%s", __func__);
1da177e4 1465
1da177e4
LT		 1466 /* XXX see create_sysfs_attrs */
1467 if (priv->chip_type != SIO) {
12bdbe03 1468 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1469 if (priv->chip_type == FT232BM ||
1470 priv->chip_type == FT2232C ||
094c2e6d
MA		 1471 priv->chip_type == FT232RL ||
1472 priv->chip_type == FT2232H ||
1473 priv->chip_type == FT4232H) {
12bdbe03 1474 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1475 }
1476 }
5c09d144 1477
1da177e4
LT		 1478}
1479
1480/*
1481 * ***************************************************************************
1482 * FTDI driver specific functions
1483 * ***************************************************************************
1484 */
1485
8f977e42 1486/* Probe function to check for special devices */
464cbb24
AC		 1487static int ftdi_sio_probe(struct usb_serial *serial,
1488 const struct usb_device_id *id)
8f977e42 1489{
464cbb24
AC		 1490 struct ftdi_sio_quirk *quirk =
1491 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1492
1493 if (quirk && quirk->probe) {
1494 int ret = quirk->probe(serial);
1495 if (ret != 0)
1496 return ret;
1497 }
1498
8f977e42
IA		 1499 usb_set_serial_data(serial, (void *)id->driver_info);
1500
fa91d43b 1501 return 0;
8f977e42
IA		 1502}
1503
12bdbe03 1504static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1505{
1da177e4 1506 struct ftdi_private *priv;
0ffbbe25
ON		 1507 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1508
13f4db9e 1509
464cbb24 1510 dbg("%s", __func__);
1da177e4 1511
80b6ca48 1512 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1513 if (!priv) {
194343d9 1514 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1515 sizeof(struct ftdi_private));
1da177e4
LT		 1516 return -ENOMEM;
1517 }
1da177e4 1518
c45d6320 1519 kref_init(&priv->kref);
1da177e4 1520 spin_lock_init(&priv->rx_lock);
22465400 1521 spin_lock_init(&priv->tx_lock);
464cbb24 1522 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1523 /* This will push the characters through immediately rather
1524 than queue a task to deliver them */
1525 priv->flags = ASYNC_LOW_LATENCY;
1526
0ffbbe25
ON		 1527 if (quirk && quirk->port_probe)
1528 quirk->port_probe(priv);
1529
1da177e4 1530 /* Increase the size of read buffers */
1bc3c9e1 1531 kfree(port->bulk_in_buffer);
464cbb24 1532 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1533 if (!port->bulk_in_buffer) {
464cbb24 1534 kfree(priv);
1da177e4
LT		 1535 return -ENOMEM;
1536 }
1537 if (port->read_urb) {
1538 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1539 port->read_urb->transfer_buffer_length = BUFSZ;
1540 }
1541
c4028958
DH		 1542 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1543 priv->port = port;
76854cea 1544
1da177e4
LT		 1545 /* Free port's existing write urb and transfer buffer. */
1546 if (port->write_urb) {
464cbb24 1547 usb_free_urb(port->write_urb);
1da177e4
LT		 1548 port->write_urb = NULL;
1549 }
1bc3c9e1
JJ		 1550 kfree(port->bulk_out_buffer);
1551 port->bulk_out_buffer = NULL;
1da177e4 1552
12bdbe03 1553 usb_set_serial_port_data(port, priv);
1da177e4 1554
464cbb24 1555 ftdi_determine_type(port);
895f28ba 1556 ftdi_set_max_packet_size(port);
557aaa7f 1557 read_latency_timer(port);
12bdbe03
JR		 1558 create_sysfs_attrs(port);
1559 return 0;
1560}
1da177e4 1561
8f977e42
IA		 1562/* Setup for the USB-UIRT device, which requires hardwired
1563 * baudrate (38400 gets mapped to 312500) */
1da177e4 1564/* Called from usbserial:serial_probe */
464cbb24 1565static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1566{
464cbb24 1567 dbg("%s", __func__);
1da177e4 1568
1da177e4
LT		 1569 priv->flags |= ASYNC_SPD_CUST;
1570 priv->custom_divisor = 77;
669a6db1 1571 priv->force_baud = 38400;
8f977e42 1572} /* ftdi_USB_UIRT_setup */
1da177e4 1573
8f977e42
IA		 1574/* Setup for the HE-TIRA1 device, which requires hardwired
1575 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1576
1577static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1578{
464cbb24 1579 dbg("%s", __func__);
1da177e4 1580
1da177e4
LT		 1581 priv->flags |= ASYNC_SPD_CUST;
1582 priv->custom_divisor = 240;
669a6db1 1583 priv->force_baud = 38400;
1da177e4 1584 priv->force_rtscts = 1;
8f977e42 1585} /* ftdi_HE_TIRA1_setup */
1da177e4 1586
b760dac2
MG		 1587/*
1588 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1589 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1590 */
1591static int ndi_latency_timer = 1;
1592
1593/* Setup for the NDI FTDI-based USB devices, which requires hardwired
1594 * baudrate (19200 gets mapped to 1200000).
1595 *
1596 * Called from usbserial:serial_probe.
1597 */
1598static int ftdi_NDI_device_setup(struct usb_serial *serial)
1599{
1600 struct usb_device *udev = serial->dev;
1601 int latency = ndi_latency_timer;
1602 int rv = 0;
1603 char buf[1];
1604
1605 if (latency == 0)
1606 latency = 1;
1607 if (latency > 99)
1608 latency = 99;
1609
1610 dbg("%s setting NDI device latency to %d", __func__, latency);
1611 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1612
1613 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1614 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1615 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1616 latency, 0, buf, 0, WDR_TIMEOUT);
1617 return 0;
1618}
1619
fa91d43b 1620/*
20734345
HW		 1621 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1622 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1623 * userspace using openocd.
fa91d43b 1624 */
20734345 1625static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1626{
1627 struct usb_device *udev = serial->dev;
1628 struct usb_interface *interface = serial->interface;
1629
464cbb24 1630 dbg("%s", __func__);
fa91d43b
TL		 1631
1632 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1633 dev_info(&udev->dev,
1634 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1635 return -ENODEV;
1636 }
1637
1638 return 0;
1639}
1da177e4 1640
546d7eec
KV		 1641/*
1642 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1643 * We have to correct it if we want to read from it.
1644 */
1645static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1646{
1647 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1648 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1649
1650 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1651 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1652 dev_info(&serial->dev->dev,
1653 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1654 }
1655
1656 return 0;
1657}
1658
c45d6320
AS		 1659static void ftdi_sio_priv_release(struct kref *k)
1660{
1661 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1662
1663 kfree(priv);
1664}
1665
12bdbe03
JR		 1666static int ftdi_sio_port_remove(struct usb_serial_port *port)
1667{
1da177e4
LT		 1668 struct ftdi_private *priv = usb_get_serial_port_data(port);
1669
441b62c1 1670 dbg("%s", __func__);
1da177e4 1671
12bdbe03 1672 remove_sysfs_attrs(port);
5c09d144 1673
80193195 1674 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1675
12bdbe03
JR		 1676 return 0;
1677}
1da177e4 1678
95da310e
AC		 1679static int ftdi_open(struct tty_struct *tty,
1680 struct usb_serial_port *port, struct file *filp)
1da177e4 1681{ /* ftdi_open */
1da177e4
LT		 1682 struct usb_device *dev = port->serial->dev;
1683 struct ftdi_private *priv = usb_get_serial_port_data(port);
1684 unsigned long flags;
5c09d144 1685
1da177e4
LT		 1686 int result = 0;
1687 char buf[1]; /* Needed for the usb_control_msg I think */
1688
441b62c1 1689 dbg("%s", __func__);
1da177e4 1690
22465400
IA		 1691 spin_lock_irqsave(&priv->tx_lock, flags);
1692 priv->tx_bytes = 0;
1693 spin_unlock_irqrestore(&priv->tx_lock, flags);
1694 spin_lock_irqsave(&priv->rx_lock, flags);
1695 priv->rx_bytes = 0;
1696 spin_unlock_irqrestore(&priv->rx_lock, flags);
1697
95da310e
AC		 1698 if (tty)
1699 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4 1700
557aaa7f
AC		 1701 write_latency_timer(port);
1702
1da177e4
LT		 1703 /* No error checking for this (will get errors later anyway) */
1704 /* See ftdi_sio.h for description of what is reset */
1705 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1706 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1707 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1708 priv->interface, buf, 0, WDR_TIMEOUT);
1709
1710 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1711 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1712 This is same behaviour as serial.c/rs_open() - Kuba */
1713
1714 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1715 if (tty)
1716 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1717
1da177e4
LT		 1718 /* Not throttled */
1719 spin_lock_irqsave(&priv->rx_lock, flags);
1720 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1721 spin_unlock_irqrestore(&priv->rx_lock, flags);
1722
1723 /* Start reading from the device */
76854cea 1724 priv->rx_processed = 0;
1da177e4 1725 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1726 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1727 port->read_urb->transfer_buffer,
1728 port->read_urb->transfer_buffer_length,
1729 ftdi_read_bulk_callback, port);
1da177e4
LT		 1730 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1731 if (result)
194343d9
GKH		 1732 dev_err(&port->dev,
1733 "%s - failed submitting read urb, error %d\n",
1734 __func__, result);
c45d6320
AS		 1735 else
1736 kref_get(&priv->kref);
1da177e4
LT		 1737
1738 return result;
1739} /* ftdi_open */
1740
1741
335f8514
AC		 1742static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1743{
1744 struct ftdi_private *priv = usb_get_serial_port_data(port);
1745 char buf[1];
1746
1747 mutex_lock(&port->serial->disc_mutex);
1748 if (!port->serial->disconnected) {
1749 /* Disable flow control */
1750 if (!on && usb_control_msg(port->serial->dev,
1751 usb_sndctrlpipe(port->serial->dev, 0),
1752 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1753 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1754 0, priv->interface, buf, 0,
1755 WDR_TIMEOUT) < 0) {
1756 dev_err(&port->dev, "error from flowcontrol urb\n");
1757 }
1758 /* drop RTS and DTR */
1759 if (on)
1760 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1761 else
1762 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1763 }
1764 mutex_unlock(&port->serial->disc_mutex);
1765}
1da177e4 1766
5c09d144 1767/*
1da177e4
LT		 1768 * usbserial:__serial_close only calls ftdi_close if the point is open
1769 *
1770 * This only gets called when it is the last close
5c09d144
DB		 1771 *
1772 *
1da177e4
LT		 1773 */
1774
335f8514 1775static void ftdi_close(struct usb_serial_port *port)
1da177e4 1776{ /* ftdi_close */
1da177e4 1777 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1778
441b62c1 1779 dbg("%s", __func__);
1da177e4 1780
76854cea
IA		 1781
1782 /* cancel any scheduled reading */
c45d6320 1783 cancel_delayed_work_sync(&priv->rx_work);
5c09d144 1784
1da177e4 1785 /* shutdown our bulk read */
794c944e 1786 usb_kill_urb(port->read_urb);
c45d6320 1787 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1788} /* ftdi_close */
1789
1790
5c09d144 1791
1da177e4
LT		 1792/* The SIO requires the first byte to have:
1793 * B0 1
1794 * B1 0
1795 * B2..7 length of message excluding byte 0
1796 *
1797 * The new devices do not require this byte
1798 */
95da310e 1799static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1800 const unsigned char *buf, int count)
1801{ /* ftdi_write */
1802 struct ftdi_private *priv = usb_get_serial_port_data(port);
1803 struct urb *urb;
1804 unsigned char *buffer;
1805 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1806 int status;
1807 int transfer_size;
22465400 1808 unsigned long flags;
1da177e4 1809
441b62c1 1810 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1811
1812 if (count == 0) {
1813 dbg("write request of 0 bytes");
1814 return 0;
1815 }
22465400
IA		 1816 spin_lock_irqsave(&priv->tx_lock, flags);
1817 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1818 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1819 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1820 return 0;
1821 }
62127a58 1822 priv->tx_outstanding_urbs++;
22465400 1823 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1824
1da177e4 1825 data_offset = priv->write_offset;
464cbb24 1826 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1827
1828 /* Determine total transfer size */
1829 transfer_size = count;
1830 if (data_offset > 0) {
1831 /* Original sio needs control bytes too... */
1832 transfer_size += (data_offset *
895f28ba
MA		 1833 ((count + (priv->max_packet_size - 1 - data_offset)) /
1834 (priv->max_packet_size - data_offset)));
1da177e4
LT		 1835 }
1836
464cbb24 1837 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1838 if (!buffer) {
194343d9
GKH		 1839 dev_err(&port->dev,
1840 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1841 count = -ENOMEM;
1842 goto error_no_buffer;
1da177e4
LT		 1843 }
1844
1845 urb = usb_alloc_urb(0, GFP_ATOMIC);
1846 if (!urb) {
194343d9 1847 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1848 count = -ENOMEM;
1849 goto error_no_urb;
1da177e4
LT		 1850 }
1851
1852 /* Copy data */
1853 if (data_offset > 0) {
464cbb24
AC		 1854 /* Original sio requires control byte at start of
1855 each packet. */
895f28ba 1856 int user_pktsz = priv->max_packet_size - data_offset;
1da177e4
LT		 1857 int todo = count;
1858 unsigned char *first_byte = buffer;
1859 const unsigned char *current_position = buf;
1860
1861 while (todo > 0) {
464cbb24 1862 if (user_pktsz > todo)
1da177e4 1863 user_pktsz = todo;
1da177e4 1864 /* Write the control byte at the front of the packet*/
5c09d144 1865 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1866 /* Copy data for packet */
464cbb24 1867 memcpy(first_byte + data_offset,
1da177e4
LT		 1868 current_position, user_pktsz);
1869 first_byte += user_pktsz + data_offset;
1870 current_position += user_pktsz;
1871 todo -= user_pktsz;
1872 }
1873 } else {
1874 /* No control byte required. */
1875 /* Copy in the data to send */
464cbb24 1876 memcpy(buffer, buf, count);
1da177e4
LT		 1877 }
1878
464cbb24
AC		 1879 usb_serial_debug_data(debug, &port->dev, __func__,
1880 transfer_size, buffer);
1da177e4
LT		 1881
1882 /* fill the buffer and send it */
5c09d144 1883 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1884 usb_sndbulkpipe(port->serial->dev,
1885 port->bulk_out_endpointAddress),
1886 buffer, transfer_size,
1887 ftdi_write_bulk_callback, port);
1da177e4
LT		 1888
1889 status = usb_submit_urb(urb, GFP_ATOMIC);
1890 if (status) {
194343d9
GKH		 1891 dev_err(&port->dev,
1892 "%s - failed submitting write urb, error %d\n",
1893 __func__, status);
1da177e4 1894 count = status;
62127a58 1895 goto error;
22465400
IA		 1896 } else {
1897 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1898 priv->tx_outstanding_bytes += count;
1899 priv->tx_bytes += count;
1900 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1901 }
1902
1903 /* we are done with this urb, so let the host driver
1904 * really free it when it is finished with it */
62127a58 1905 usb_free_urb(urb);
1da177e4 1906
441b62c1 1907 dbg("%s write returning: %d", __func__, count);
1da177e4 1908 return count;
62127a58
ON		 1909error:
1910 usb_free_urb(urb);
1911error_no_urb:
464cbb24 1912 kfree(buffer);
62127a58
ON		 1913error_no_buffer:
1914 spin_lock_irqsave(&priv->tx_lock, flags);
1915 priv->tx_outstanding_urbs--;
1916 spin_unlock_irqrestore(&priv->tx_lock, flags);
1917 return count;
1da177e4
LT		 1918} /* ftdi_write */
1919
1920
1921/* This function may get called when the device is closed */
1922
464cbb24 1923static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1924{
22465400 1925 unsigned long flags;
cdc97792 1926 struct usb_serial_port *port = urb->context;
22465400
IA		 1927 struct ftdi_private *priv;
1928 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1929 unsigned long countback;
0fb0aa18 1930 int status = urb->status;
1da177e4
LT		 1931
1932 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1933 kfree(urb->transfer_buffer);
1da177e4 1934
441b62c1 1935 dbg("%s - port %d", __func__, port->number);
5c09d144 1936
22465400
IA		 1937 priv = usb_get_serial_port_data(port);
1938 if (!priv) {
441b62c1 1939 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1940 return;
1941 }
1942 /* account for transferred data */
1943 countback = urb->actual_length;
1944 data_offset = priv->write_offset;
1945 if (data_offset > 0) {
1946 /* Subtract the control bytes */
895f28ba 1947 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
22465400
IA		 1948 }
1949 spin_lock_irqsave(&priv->tx_lock, flags);
1950 --priv->tx_outstanding_urbs;
1951 priv->tx_outstanding_bytes -= countback;
1952 spin_unlock_irqrestore(&priv->tx_lock, flags);
1953
87c1edd2
JW		 1954 if (status) {
1955 dbg("nonzero write bulk status received: %d", status);
1956 return;
1957 }
1958
cf2c7481 1959 usb_serial_port_softint(port);
1da177e4
LT		 1960} /* ftdi_write_bulk_callback */
1961
1962
95da310e 1963static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1964{
95da310e 1965 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1966 struct ftdi_private *priv = usb_get_serial_port_data(port);
1967 int room;
1968 unsigned long flags;
1969
441b62c1 1970 dbg("%s - port %d", __func__, port->number);
1da177e4 1971
22465400
IA		 1972 spin_lock_irqsave(&priv->tx_lock, flags);
1973 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1974 /*
1975 * We really can take anything the user throws at us
1976 * but let's pick a nice big number to tell the tty
1977 * layer that we have lots of free space
1978 */
1979 room = 2048;
1980 } else {
1981 room = 0;
1982 }
1983 spin_unlock_irqrestore(&priv->tx_lock, flags);
1984 return room;
95da310e 1985}
1da177e4 1986
95da310e
AC		 1987static int ftdi_chars_in_buffer(struct tty_struct *tty)
1988{
1989 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1990 struct ftdi_private *priv = usb_get_serial_port_data(port);
1991 int buffered;
1992 unsigned long flags;
1993
441b62c1 1994 dbg("%s - port %d", __func__, port->number);
1da177e4 1995
22465400
IA		 1996 spin_lock_irqsave(&priv->tx_lock, flags);
1997 buffered = (int)priv->tx_outstanding_bytes;
1998 spin_unlock_irqrestore(&priv->tx_lock, flags);
1999 if (buffered < 0) {
194343d9
GKH		 2000 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
2001 __func__);
22465400
IA		 2002 buffered = 0;
2003 }
2004 return buffered;
95da310e 2005}
1da177e4 2006
95da310e
AC		 2007static void ftdi_read_bulk_callback(struct urb *urb)
2008{
cdc97792 2009 struct usb_serial_port *port = urb->context;
1da177e4
LT		 2010 struct tty_struct *tty;
2011 struct ftdi_private *priv;
22465400
IA		 2012 unsigned long countread;
2013 unsigned long flags;
0fb0aa18 2014 int status = urb->status;
1da177e4
LT		 2015
2016 if (urb->number_of_packets > 0) {
194343d9
GKH		 2017 dev_err(&port->dev, "%s transfer_buffer_length %d "
2018 "actual_length %d number of packets %d\n", __func__,
2019 urb->transfer_buffer_length,
2020 urb->actual_length, urb->number_of_packets);
2021 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
2022 urb->transfer_flags);
1da177e4
LT		 2023 }
2024
441b62c1 2025 dbg("%s - port %d", __func__, port->number);
1da177e4 2026
95da310e 2027 if (port->port.count <= 0)
1da177e4
LT		 2028 return;
2029
4a90f09b 2030 tty = tty_port_tty_get(&port->port);
1da177e4 2031 if (!tty) {
464cbb24 2032 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 2033 return;
2034 }
2035
2036 priv = usb_get_serial_port_data(port);
2037 if (!priv) {
441b62c1 2038 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 2039 goto out;
1da177e4
LT		 2040 }
2041
464cbb24 2042 if (urb != port->read_urb)
194343d9 2043 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1da177e4 2044
0fb0aa18 2045 if (status) {
464cbb24
AC		 2046 /* This will happen at close every time so it is a dbg not an
2047 err */
2048 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
4a90f09b 2049 goto out;
1da177e4
LT		 2050 }
2051
22465400
IA		 2052 /* count data bytes, but not status bytes */
2053 countread = urb->actual_length;
895f28ba 2054 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size);
22465400
IA		 2055 spin_lock_irqsave(&priv->rx_lock, flags);
2056 priv->rx_bytes += countread;
2057 spin_unlock_irqrestore(&priv->rx_lock, flags);
2058
c4028958 2059 ftdi_process_read(&priv->rx_work.work);
4a90f09b
AC		 2060out:
2061 tty_kref_put(tty);
1da177e4
LT		 2062} /* ftdi_read_bulk_callback */
2063
2064
464cbb24 2065static void ftdi_process_read(struct work_struct *work)
1da177e4 2066{ /* ftdi_process_read */
c4028958
DH		 2067 struct ftdi_private *priv =
2068 container_of(work, struct ftdi_private, rx_work.work);
2069 struct usb_serial_port *port = priv->port;
1da177e4
LT		 2070 struct urb *urb;
2071 struct tty_struct *tty;
1da177e4 2072 char error_flag;
5c09d144 2073 unsigned char *data;
1da177e4
LT		 2074
2075 int i;
2076 int result;
2077 int need_flip;
2078 int packet_offset;
76854cea 2079 unsigned long flags;
1da177e4 2080
441b62c1 2081 dbg("%s - port %d", __func__, port->number);
1da177e4 2082
95da310e 2083 if (port->port.count <= 0)
1da177e4
LT		 2084 return;
2085
4a90f09b 2086 tty = tty_port_tty_get(&port->port);
1da177e4 2087 if (!tty) {
464cbb24 2088 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 2089 return;
2090 }
2091
2092 priv = usb_get_serial_port_data(port);
2093 if (!priv) {
441b62c1 2094 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 2095 goto out;
1da177e4
LT		 2096 }
2097
2098 urb = port->read_urb;
2099 if (!urb) {
441b62c1 2100 dbg("%s - bad read_urb pointer - exiting", __func__);
4a90f09b 2101 goto out;
1da177e4
LT		 2102 }
2103
2104 data = urb->transfer_buffer;
2105
76854cea 2106 if (priv->rx_processed) {
441b62c1 2107 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 2108 priv->rx_processed,
2109 urb->actual_length - priv->rx_processed);
1da177e4 2110 } else {
76854cea 2111 /* The first two bytes of every read packet are status */
464cbb24
AC		 2112 if (urb->actual_length > 2)
2113 usb_serial_debug_data(debug, &port->dev, __func__,
2114 urb->actual_length, data);
2115 else
2116 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 2117 }
1da177e4
LT		 2118
2119
2120 /* TO DO -- check for hung up line and handle appropriately: */
2121 /* send hangup */
2122 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
2123 /* if CD is dropped and the line is not CLOCAL then we should hangup */
2124
2125 need_flip = 0;
464cbb24 2126 for (packet_offset = priv->rx_processed;
895f28ba 2127 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) {
76854cea
IA		 2128 int length;
2129
464cbb24
AC		 2130 /* Compare new line status to the old one, signal if different/
2131 N.B. packet may be processed more than once, but differences
2132 are only processed once. */
00185a60
JL		 2133 char new_status = data[packet_offset + 0] &
2134 FTDI_STATUS_B0_MASK;
2135 if (new_status != priv->prev_status) {
2136 priv->diff_status |=
2137 new_status ^ priv->prev_status;
2138 wake_up_interruptible(&priv->delta_msr_wait);
2139 priv->prev_status = new_status;
1da177e4
LT		 2140 }
2141
895f28ba 2142 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2;
76854cea 2143 if (length < 0) {
194343d9
GKH		 2144 dev_err(&port->dev, "%s - bad packet length: %d\n",
2145 __func__, length+2);
76854cea
IA		 2146 length = 0;
2147 }
2148
76854cea 2149 if (priv->rx_flags & THROTTLED) {
441b62c1 2150 dbg("%s - throttled", __func__);
76854cea
IA		 2151 break;
2152 }
33f0f88f 2153 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 2154 /* break out & wait for throttling/unthrottling to
2155 happen */
441b62c1 2156 dbg("%s - receive room low", __func__);
76854cea
IA		 2157 break;
2158 }
2159
1da177e4
LT		 2160 /* Handle errors and break */
2161 error_flag = TTY_NORMAL;
464cbb24
AC		 2162 /* Although the device uses a bitmask and hence can have
2163 multiple errors on a packet - the order here sets the
2164 priority the error is returned to the tty layer */
1da177e4 2165
464cbb24 2166 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 2167 error_flag = TTY_OVERRUN;
2168 dbg("OVERRRUN error");
2169 }
464cbb24 2170 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 2171 error_flag = TTY_BREAK;
2172 dbg("BREAK received");
72fda3ca 2173 usb_serial_handle_break(port);
1da177e4 2174 }
464cbb24 2175 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 2176 error_flag = TTY_PARITY;
2177 dbg("PARITY error");
2178 }
464cbb24 2179 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 2180 error_flag = TTY_FRAME;
2181 dbg("FRAMING error");
2182 }
76854cea
IA		 2183 if (length > 0) {
2184 for (i = 2; i < length+2; i++) {
5c09d144 2185 /* Note that the error flag is duplicated for
1da177e4
LT		 2186 every character received since we don't know
2187 which character it applied to */
24a15a62 2188 if (!usb_serial_handle_sysrq_char(tty, port,
72fda3ca
JW		 2189 data[packet_offset + i]))
2190 tty_insert_flip_char(tty,
2191 data[packet_offset + i],
2192 error_flag);
1da177e4
LT		 2193 }
2194 need_flip = 1;
2195 }
2196
2197#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2198 /* if a parity error is detected you get status packets forever
2199 until a character is sent without a parity error.
464cbb24
AC		 2200 This doesn't work well since the application receives a
2201 never ending stream of bad data - even though new data
2202 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 2203 However - this might make sense for framing errors and so on
1da177e4
LT		 2204 so I am leaving the code in for now.
2205 */
2206 else {
464cbb24 2207 if (error_flag != TTY_NORMAL) {
1da177e4 2208 dbg("error_flag is not normal");
464cbb24
AC		 2209 /* In this case it is just status - if that is
2210 an error send a bad character */
2211 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 2212 tty_flip_buffer_push(tty);
1da177e4
LT		 2213 tty_insert_flip_char(tty, 0xff, error_flag);
2214 need_flip = 1;
2215 }
2216 }
2217#endif
2218 } /* "for(packet_offset=0..." */
2219
2220 /* Low latency */
464cbb24 2221 if (need_flip)
1da177e4 2222 tty_flip_buffer_push(tty);
1da177e4 2223
76854cea
IA		 2224 if (packet_offset < urb->actual_length) {
2225 /* not completely processed - record progress */
2226 priv->rx_processed = packet_offset;
2227 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2228 __func__, packet_offset,
76854cea
IA		 2229 urb->actual_length - packet_offset);
2230 /* check if we were throttled while processing */
2231 spin_lock_irqsave(&priv->rx_lock, flags);
2232 if (priv->rx_flags & THROTTLED) {
2233 priv->rx_flags |= ACTUALLY_THROTTLED;
2234 spin_unlock_irqrestore(&priv->rx_lock, flags);
2235 dbg("%s - deferring remainder until unthrottled",
441b62c1 2236 __func__);
a9fec710 2237 goto out;
76854cea
IA		 2238 }
2239 spin_unlock_irqrestore(&priv->rx_lock, flags);
2240 /* if the port is closed stop trying to read */
464cbb24 2241 if (port->port.count > 0)
76854cea
IA		 2242 /* delay processing of remainder */
2243 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2244 else
441b62c1 2245 dbg("%s - port is closed", __func__);
4a90f09b 2246 goto out;
76854cea
IA		 2247 }
2248
2249 /* urb is completely processed */
2250 priv->rx_processed = 0;
2251
1da177e4 2252 /* if the port is closed stop trying to read */
464cbb24 2253 if (port->port.count > 0) {
1da177e4 2254 /* Continue trying to always read */
5c09d144 2255 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2256 usb_rcvbulkpipe(port->serial->dev,
2257 port->bulk_in_endpointAddress),
2258 port->read_urb->transfer_buffer,
2259 port->read_urb->transfer_buffer_length,
2260 ftdi_read_bulk_callback, port);
1da177e4
LT		 2261
2262 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2263 if (result)
194343d9
GKH		 2264 dev_err(&port->dev,
2265 "%s - failed resubmitting read urb, error %d\n",
2266 __func__, result);
1da177e4 2267 }
4a90f09b
AC		 2268out:
2269 tty_kref_put(tty);
1da177e4
LT		 2270} /* ftdi_process_read */
2271
2272
95da310e 2273static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2274{
95da310e 2275 struct usb_serial_port *port = tty->driver_data;
1da177e4 2276 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2277 __u16 urb_value = 0;
1da177e4 2278 char buf[1];
5c09d144 2279
1da177e4
LT		 2280 /* break_state = -1 to turn on break, and 0 to turn off break */
2281 /* see drivers/char/tty_io.c to see it used */
2282 /* last_set_data_urb_value NEVER has the break bit set in it */
2283
464cbb24 2284 if (break_state)
1da177e4 2285 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2286 else
5c09d144 2287 urb_value = priv->last_set_data_urb_value;
5c09d144 2288
464cbb24
AC		 2289 if (usb_control_msg(port->serial->dev,
2290 usb_sndctrlpipe(port->serial->dev, 0),
2291 FTDI_SIO_SET_DATA_REQUEST,
2292 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2293 urb_value , priv->interface,
2294 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2295 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2296 "(state was %d)\n", __func__, break_state);
5c09d144 2297 }
1da177e4 2298
464cbb24
AC		 2299 dbg("%s break state is %d - urb is %d", __func__,
2300 break_state, urb_value);
5c09d144 2301
1da177e4
LT		 2302}
2303
2304
2305/* old_termios contains the original termios settings and tty->termios contains
2306 * the new setting to be used
2307 * WARNING: set_termios calls this with old_termios in kernel space
2308 */
2309
95da310e
AC		 2310static void ftdi_set_termios(struct tty_struct *tty,
2311 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2312{ /* ftdi_termios */
2313 struct usb_device *dev = port->serial->dev;
1da177e4 2314 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2315 struct ktermios *termios = tty->termios;
669a6db1 2316 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2317 __u16 urb_value; /* will hold the new flags */
2318 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2319
464cbb24 2320 /* Added for xon/xoff support */
669a6db1 2321 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2322 unsigned char vstop;
2323 unsigned char vstart;
5c09d144 2324
441b62c1 2325 dbg("%s", __func__);
1da177e4 2326
464cbb24
AC		 2327 /* Force baud rate if this device requires it, unless it is set to
2328 B0. */
669a6db1 2329 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2330 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2331 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2332 priv->force_baud);
1da177e4
LT		 2333 }
2334
2335 /* Force RTS-CTS if this device requires it. */
2336 if (priv->force_rtscts) {
441b62c1 2337 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2338 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2339 }
2340
669a6db1 2341 cflag = termios->c_cflag;
1da177e4 2342
5c09d144
DB		 2343 /* FIXME -For this cut I don't care if the line is really changing or
2344 not - so just do the change regardless - should be able to
1da177e4 2345 compare old_termios and tty->termios */
5c09d144 2346 /* NOTE These routines can get interrupted by
464cbb24
AC		 2347 ftdi_sio_read_bulk_callback - need to examine what this means -
2348 don't see any problems yet */
5c09d144 2349
1da177e4 2350 /* Set number of data bits, parity, stop bits */
5c09d144 2351
669a6db1
AC		 2352 termios->c_cflag &= ~CMSPAR;
2353
1da177e4
LT		 2354 urb_value = 0;
2355 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2356 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2357 urb_value |= (cflag & PARENB ?
2358 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2359 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2360 FTDI_SIO_SET_DATA_PARITY_NONE);
2361 if (cflag & CSIZE) {
2362 switch (cflag & CSIZE) {
2363 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2364 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2365 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2366 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2367 default:
194343d9 2368 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2369 }
2370 }
2371
464cbb24
AC		 2372 /* This is needed by the break command since it uses the same command
2373 - but is or'ed with this value */
1da177e4 2374 priv->last_set_data_urb_value = urb_value;
5c09d144 2375
1da177e4 2376 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2377 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2378 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2379 urb_value , priv->interface,
279e1545 2380 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2381 dev_err(&port->dev, "%s FAILED to set "
2382 "databits/stopbits/parity\n", __func__);
5c09d144 2383 }
1da177e4
LT		 2384
2385 /* Now do the baudrate */
464cbb24 2386 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2387 /* Disable flow control */
2388 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2389 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2390 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2391 0, priv->interface,
1da177e4 2392 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2393 dev_err(&port->dev,
2394 "%s error from disable flowcontrol urb\n",
2395 __func__);
5c09d144 2396 }
1da177e4 2397 /* Drop RTS and DTR */
74ede0ff 2398 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2399 } else {
2400 /* set the baudrate determined before */
464cbb24 2401 if (change_speed(tty, port))
194343d9
GKH		 2402 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2403 __func__);
72a755fc 2404 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2405 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2406 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2407 }
2408
2409 /* Set flow control */
2410 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2411 if (cflag & CRTSCTS) {
441b62c1 2412 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2413 if (usb_control_msg(dev,
1da177e4 2414 usb_sndctrlpipe(dev, 0),
5c09d144 2415 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2416 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2417 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2418 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2419 dev_err(&port->dev,
2420 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2421 }
2422
2423 } else {
1da177e4
LT		 2424 /*
2425 * Xon/Xoff code
2426 *
464cbb24
AC		 2427 * Check the IXOFF status in the iflag component of the
2428 * termios structure. If IXOFF is not set, the pre-xon/xoff
2429 * code is executed.
2430 */
1da177e4 2431 if (iflag & IXOFF) {
464cbb24
AC		 2432 dbg("%s request to enable xonxoff iflag=%04x",
2433 __func__, iflag);
2434 /* Try to enable the XON/XOFF on the ftdi_sio
2435 * Set the vstart and vstop -- could have been done up
2436 * above where a lot of other dereferencing is done but
2437 * that would be very inefficient as vstart and vstop
2438 * are not always needed.
2439 */
669a6db1
AC		 2440 vstart = termios->c_cc[VSTART];
2441 vstop = termios->c_cc[VSTOP];
464cbb24 2442 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2443
2444 if (usb_control_msg(dev,
2445 usb_sndctrlpipe(dev, 0),
2446 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2447 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2448 urb_value , (FTDI_SIO_XON_XOFF_HS
2449 | priv->interface),
2450 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2451 dev_err(&port->dev, "urb failed to set to "
2452 "xon/xoff flow control\n");
1da177e4
LT		 2453 }
2454 } else {
464cbb24
AC		 2455 /* else clause to only run if cflag ! CRTSCTS and iflag
2456 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2457 * stack - not by device */
441b62c1 2458 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2459 if (usb_control_msg(dev,
1da177e4 2460 usb_sndctrlpipe(dev, 0),
5c09d144 2461 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2462 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2463 0, priv->interface,
1da177e4 2464 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2465 dev_err(&port->dev,
2466 "urb failed to clear flow control\n");
5c09d144 2467 }
1da177e4 2468 }
5c09d144 2469
1da177e4
LT		 2470 }
2471 return;
95da310e 2472}
1da177e4 2473
95da310e 2474static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2475{
95da310e 2476 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2477 struct ftdi_private *priv = usb_get_serial_port_data(port);
2478 unsigned char buf[2];
2479 int ret;
2480
441b62c1 2481 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2482 switch (priv->chip_type) {
2483 case SIO:
2484 /* Request the status from the device */
464cbb24
AC		 2485 ret = usb_control_msg(port->serial->dev,
2486 usb_rcvctrlpipe(port->serial->dev, 0),
2487 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2488 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2489 0, 0,
2490 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2491 if (ret < 0)
464cbb24 2492 return ret;
1da177e4
LT		 2493 break;
2494 case FT8U232AM:
2495 case FT232BM:
2496 case FT2232C:
ed6e5282 2497 case FT232RL:
094c2e6d
MA		 2498 case FT2232H:
2499 case FT4232H:
464cbb24
AC		 2500 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2501 value) - in the same format as the data returned from the in
2502 point */
2503 ret = usb_control_msg(port->serial->dev,
2504 usb_rcvctrlpipe(port->serial->dev, 0),
2505 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2506 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2507 0, priv->interface,
2508 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2509 if (ret < 0)
464cbb24 2510 return ret;
1da177e4
LT		 2511 break;
2512 default:
2513 return -EFAULT;
1da177e4 2514 }
5c09d144 2515
1da177e4
LT		 2516 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2517 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2518 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2519 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2520 priv->last_dtr_rts;
1da177e4
LT		 2521}
2522
464cbb24 2523static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2524 unsigned int set, unsigned int clear)
1da177e4 2525{
95da310e 2526 struct usb_serial_port *port = tty->driver_data;
441b62c1 2527 dbg("%s TIOCMSET", __func__);
74ede0ff 2528 return update_mctrl(port, set, clear);
1da177e4
LT		 2529}
2530
2531
464cbb24
AC		 2532static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2533 unsigned int cmd, unsigned long arg)
1da177e4 2534{
95da310e 2535 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2536 struct ftdi_private *priv = usb_get_serial_port_data(port);
2537
441b62c1 2538 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2539
2540 /* Based on code from acm.c and others */
2541 switch (cmd) {
2542
1da177e4 2543 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2544 return get_serial_info(port,
2545 (struct serial_struct __user *) arg);
1da177e4
LT		 2546
2547 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2548 return set_serial_info(tty, port,
2549 (struct serial_struct __user *) arg);
1da177e4
LT		 2550
2551 /*
2552 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2553 * - mask passed in arg for lines of interest
2554 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2555 * Caller should use TIOCGICOUNT to see which one it was.
2556 *
2557 * This code is borrowed from linux/drivers/char/serial.c
2558 */
2559 case TIOCMIWAIT:
2560 while (priv != NULL) {
2561 interruptible_sleep_on(&priv->delta_msr_wait);
2562 /* see if a signal did it */
2563 if (signal_pending(current))
2564 return -ERESTARTSYS;
2565 else {
2566 char diff = priv->diff_status;
2567
464cbb24 2568 if (diff == 0)
1da177e4 2569 return -EIO; /* no change => error */
1da177e4
LT		 2570
2571 /* Consume all events */
2572 priv->diff_status = 0;
2573
464cbb24
AC		 2574 /* Return 0 if caller wanted to know about
2575 these bits */
2576 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2577 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2578 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2579 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2580 return 0;
2581 }
2582 /*
464cbb24
AC		 2583 * Otherwise caller can't care less about what
2584 * happened,and so we continue to wait for more
2585 * events.
1da177e4
LT		 2586 */
2587 }
2588 }
95da310e 2589 return 0;
1da177e4
LT		 2590 default:
2591 break;
1da177e4 2592 }
464cbb24
AC		 2593 /* This is not necessarily an error - turns out the higher layers
2594 * will do some ioctls themselves (see comment above)
1da177e4 2595 */
441b62c1 2596 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2597 return -ENOIOCTLCMD;
2598}
1da177e4 2599
95da310e 2600static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2601{
95da310e 2602 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2603 struct ftdi_private *priv = usb_get_serial_port_data(port);
2604 unsigned long flags;
2605
441b62c1 2606 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2607
2608 spin_lock_irqsave(&priv->rx_lock, flags);
2609 priv->rx_flags |= THROTTLED;
2610 spin_unlock_irqrestore(&priv->rx_lock, flags);
2611}
2612
2613
95da310e 2614static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2615{
95da310e 2616 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2617 struct ftdi_private *priv = usb_get_serial_port_data(port);
2618 int actually_throttled;
2619 unsigned long flags;
2620
441b62c1 2621 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2622
2623 spin_lock_irqsave(&priv->rx_lock, flags);
2624 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2625 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2626 spin_unlock_irqrestore(&priv->rx_lock, flags);
2627
2628 if (actually_throttled)
c4028958 2629 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2630}
2631
464cbb24 2632static int __init ftdi_init(void)
1da177e4
LT		 2633{
2634 int retval;
2635
441b62c1 2636 dbg("%s", __func__);
fdcb0a0f
IA		 2637 if (vendor > 0 && product > 0) {
2638 /* Add user specified VID/PID to reserved element of table. */
2639 int i;
2640 for (i = 0; id_table_combined[i].idVendor; i++)
2641 ;
2642 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2643 id_table_combined[i].idVendor = vendor;
2644 id_table_combined[i].idProduct = product;
2645 }
8f977e42 2646 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2647 if (retval)
8f977e42 2648 goto failed_sio_register;
1da177e4 2649 retval = usb_register(&ftdi_driver);
5c09d144 2650 if (retval)
1da177e4
LT		 2651 goto failed_usb_register;
2652
c197a8db
GKH		 2653 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2654 DRIVER_DESC "\n");
1da177e4
LT		 2655 return 0;
2656failed_usb_register:
8f977e42
IA		 2657 usb_serial_deregister(&ftdi_sio_device);
2658failed_sio_register:
1da177e4
LT		 2659 return retval;
2660}
2661
2662
464cbb24 2663static void __exit ftdi_exit(void)
1da177e4
LT		 2664{
2665
441b62c1 2666 dbg("%s", __func__);
1da177e4 2667
464cbb24
AC		 2668 usb_deregister(&ftdi_driver);
2669 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2670
2671}
2672
2673
2674module_init(ftdi_init);
2675module_exit(ftdi_exit);
2676
464cbb24
AC		 2677MODULE_AUTHOR(DRIVER_AUTHOR);
2678MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2679MODULE_LICENSE("GPL");
2680
2681module_param(debug, bool, S_IRUGO | S_IWUSR);
2682MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2683module_param(vendor, ushort, 0);
2684MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2685 __MODULE_STRING(FTDI_VID)")");
2686module_param(product, ushort, 0);
68265043 2687MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2688
b760dac2
MG		 2689module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2690MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
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