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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
[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>
36#include <linux/tty.h>
37#include <linux/tty_driver.h>
38#include <linux/tty_flip.h>
39#include <linux/module.h>
40#include <linux/spinlock.h>
464cbb24 41#include <linux/uaccess.h>
1da177e4
LT		 42#include <linux/usb.h>
43#include <linux/serial.h>
a969888c 44#include <linux/usb/serial.h>
1da177e4
LT		 45#include "ftdi_sio.h"
46
47/*
48 * Version Information
49 */
8f977e42 50#define DRIVER_VERSION "v1.4.3"
1da177e4
LT		 51#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
52#define DRIVER_DESC "USB FTDI Serial Converters Driver"
53
54static int debug;
fdcb0a0f
IA		 55static __u16 vendor = FTDI_VID;
56static __u16 product;
1da177e4 57
0ffbbe25 58struct ftdi_private {
c45d6320 59 struct kref kref;
0ffbbe25 60 ftdi_chip_type_t chip_type;
464cbb24 61 /* type of device, either SIO or FT8U232AM */
0ffbbe25 62 int baud_base; /* baud base clock for divisor setting */
464cbb24
AC		 63 int custom_divisor; /* custom_divisor kludge, this is for
64 baud_base (different from what goes to the
65 chip!) */
0ffbbe25 66 __u16 last_set_data_urb_value ;
464cbb24
AC		 67 /* the last data state set - needed for doing
68 * a break
69 */
70 int write_offset; /* This is the offset in the usb data block to
71 * write the serial data - it varies between
72 * devices
0ffbbe25
ON		 73 */
74 int flags; /* some ASYNC_xxxx flags are supported */
75 unsigned long last_dtr_rts; /* saved modem control outputs */
464cbb24 76 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
0ffbbe25
ON		 77 char prev_status, diff_status; /* Used for TIOCMIWAIT */
78 __u8 rx_flags; /* receive state flags (throttling) */
79 spinlock_t rx_lock; /* spinlock for receive state */
80 struct delayed_work rx_work;
81 struct usb_serial_port *port;
82 int rx_processed;
83 unsigned long rx_bytes;
84
85 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
86
464cbb24
AC		 87 speed_t force_baud; /* if non-zero, force the baud rate to
88 this value */
89 int force_rtscts; /* if non-zero, force RTS-CTS to always
90 be enabled */
0ffbbe25 91
557aaa7f 92 unsigned int latency; /* latency setting in use */
0ffbbe25
ON		 93 spinlock_t tx_lock; /* spinlock for transmit state */
94 unsigned long tx_bytes;
95 unsigned long tx_outstanding_bytes;
96 unsigned long tx_outstanding_urbs;
97};
98
8f977e42
IA		 99/* struct ftdi_sio_quirk is used by devices requiring special attention. */
100struct ftdi_sio_quirk {
fa91d43b 101 int (*probe)(struct usb_serial *);
464cbb24
AC		 102 /* Special settings for probed ports. */
103 void (*port_probe)(struct ftdi_private *);
8f977e42
IA		 104};
105
464cbb24
AC		 106static int ftdi_jtag_probe(struct usb_serial *serial);
107static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
108static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
109static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 110
20734345
HW		 111static struct ftdi_sio_quirk ftdi_jtag_quirk = {
112 .probe = ftdi_jtag_probe,
fa91d43b
TL		 113};
114
546d7eec
KV		 115static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
116 .probe = ftdi_mtxorb_hack_setup,
117};
118
8f977e42 119static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 120 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 121};
122
123static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 124 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 125};
126
127/*
128 * The 8U232AM has the same API as the sio except for:
129 * - it can support MUCH higher baudrates; up to:
130 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
131 * o 230400 at 12MHz
132 * so .. 8U232AM's baudrate setting codes are different
133 * - it has a two byte status code.
134 * - it returns characters every 16ms (the FTDI does it every 40ms)
135 *
136 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
137 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
138 * combinations in both tables.
8f977e42
IA		 139 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
140 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 141 */
142
143
1da177e4
LT		 144
145static struct usb_device_id id_table_combined [] = {
2011e924
JD		 146 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
147 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
01ba0856 148 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
6e1ab3ed
PM		 149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 157 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 158 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 159 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 160 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 161 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 162 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 165 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 166 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
c0f8d561 167 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 168 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 169 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
1da177e4
LT		 170 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
171 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
f2ee6955 172 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
1da177e4
LT		 173 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
182 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
464cbb24
AC		 191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 231 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 237 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 277 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 279 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 281 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 283 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 285 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 287 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 455 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 456 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 457 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 458 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
506 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
507 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 508 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
509 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
510 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
511 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 512 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
513 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
514 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
515 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 532 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 533 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 534 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 536 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 537 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 538 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 546 /*
42f8aa94
PS		 547 * Due to many user requests for multiple ELV devices we enable
548 * them by default.
e6ac4a40 549 */
42f8aa94
PS		 550 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 568 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 569 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 570 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
5c09d144
DB		 571 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
572 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
573 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
574 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
575 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 578 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
1da177e4
LT		 579 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
580 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
581 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
582 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 583 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 584 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
c3d36c45 585 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
ef31fec0 586 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 587 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 588 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
589 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
590 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
591 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 592 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
593 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
598 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
599 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
600 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
601 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 602 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 603 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 608 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
609 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
610 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
611 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 612 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 614 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 615 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
616 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 617 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 619 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 620 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 621 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 622 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 623 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
624 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 625 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 626 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 627 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 628 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
629 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 630 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 631 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 632 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 633 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 634 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 635 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 636 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 637 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 638 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 639 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 640 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
641 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
642 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 643 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
822c7ef4 644 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 645 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 646 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 647 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 648 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 649 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 650 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 651 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
652 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
653 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
654 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
655 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 656 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
657 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
658 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
659 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 660 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 661 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 662 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
96285cb8
GC		 663 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
664 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 665 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 666 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
e38c2874 667 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) },
7f82b6dd
AW		 668 { USB_DEVICE(ATMEL_VID, STK541_PID) },
669 { USB_DEVICE(DE_VID, STB_PID) },
670 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 671 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
672 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 673 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 674 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
675 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
fdcb0a0f
IA		 676 { }, /* Optional parameter entry */
677 { } /* Terminating entry */
1da177e4
LT		 678};
679
464cbb24 680MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 681
682static struct usb_driver ftdi_driver = {
683 .name = "ftdi_sio",
684 .probe = usb_serial_probe,
685 .disconnect = usb_serial_disconnect,
686 .id_table = id_table_combined,
5c09d144 687 .no_dynamic_id = 1,
1da177e4
LT		 688};
689
4c4c9432 690static const char *ftdi_chip_name[] = {
1da177e4
LT		 691 [SIO] = "SIO", /* the serial part of FT8U100AX */
692 [FT8U232AM] = "FT8U232AM",
693 [FT232BM] = "FT232BM",
694 [FT2232C] = "FT2232C",
d8b21606 695 [FT232RL] = "FT232RL",
1da177e4
LT		 696};
697
698
699/* Constants for read urb and write urb */
700#define BUFSZ 512
701#define PKTSZ 64
702
703/* rx_flags */
704#define THROTTLED 0x01
705#define ACTUALLY_THROTTLED 0x02
706
1da177e4
LT		 707/* Used for TIOCMIWAIT */
708#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
709#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
710/* End TIOCMIWAIT */
711
bbc5d276
RK		 712#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
713 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 714
715/* function prototypes for a FTDI serial converter */
464cbb24
AC		 716static int ftdi_sio_probe(struct usb_serial *serial,
717 const struct usb_device_id *id);
718static void ftdi_shutdown(struct usb_serial *serial);
719static int ftdi_sio_port_probe(struct usb_serial_port *port);
720static int ftdi_sio_port_remove(struct usb_serial_port *port);
721static int ftdi_open(struct tty_struct *tty,
722 struct usb_serial_port *port, struct file *filp);
335f8514
AC		 723static void ftdi_close(struct usb_serial_port *port);
724static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 725static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
726 const unsigned char *buf, int count);
727static int ftdi_write_room(struct tty_struct *tty);
728static int ftdi_chars_in_buffer(struct tty_struct *tty);
729static void ftdi_write_bulk_callback(struct urb *urb);
730static void ftdi_read_bulk_callback(struct urb *urb);
731static void ftdi_process_read(struct work_struct *work);
732static void ftdi_set_termios(struct tty_struct *tty,
733 struct usb_serial_port *port, struct ktermios *old);
734static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
735static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
736 unsigned int set, unsigned int clear);
737static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
738 unsigned int cmd, unsigned long arg);
739static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
740static void ftdi_throttle(struct tty_struct *tty);
741static void ftdi_unthrottle(struct tty_struct *tty);
742
743static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
744static unsigned short int ftdi_232am_baud_to_divisor(int baud);
745static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
746static __u32 ftdi_232bm_baud_to_divisor(int baud);
1da177e4 747
ea65370d 748static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 749 .driver = {
750 .owner = THIS_MODULE,
269bda1c 751 .name = "ftdi_sio",
18fcac35 752 },
269bda1c 753 .description = "FTDI USB Serial Device",
d9b1b787 754 .usb_driver = &ftdi_driver ,
8f977e42 755 .id_table = id_table_combined,
1da177e4 756 .num_ports = 1,
8f977e42 757 .probe = ftdi_sio_probe,
12bdbe03
JR		 758 .port_probe = ftdi_sio_port_probe,
759 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 760 .open = ftdi_open,
761 .close = ftdi_close,
335f8514 762 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 763 .throttle = ftdi_throttle,
764 .unthrottle = ftdi_unthrottle,
765 .write = ftdi_write,
766 .write_room = ftdi_write_room,
767 .chars_in_buffer = ftdi_chars_in_buffer,
768 .read_bulk_callback = ftdi_read_bulk_callback,
769 .write_bulk_callback = ftdi_write_bulk_callback,
770 .tiocmget = ftdi_tiocmget,
771 .tiocmset = ftdi_tiocmset,
772 .ioctl = ftdi_ioctl,
773 .set_termios = ftdi_set_termios,
774 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 775 .shutdown = ftdi_shutdown,
776};
777
1da177e4
LT		 778
779#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 780#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 781
782/* High and low are for DTR, RTS etc etc */
783#define HIGH 1
784#define LOW 0
785
22465400
IA		 786/* number of outstanding urbs to prevent userspace DoS from happening */
787#define URB_UPPER_LIMIT 42
788
1da177e4
LT		 789/*
790 * ***************************************************************************
fa91d43b 791 * Utility functions
1da177e4
LT		 792 * ***************************************************************************
793 */
794
795static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
796{
797 unsigned short int divisor;
464cbb24
AC		 798 /* divisor shifted 3 bits to the left */
799 int divisor3 = base / 2 / baud;
800 if ((divisor3 & 0x7) == 7)
801 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 802 divisor = divisor3 >> 3;
803 divisor3 &= 0x7;
464cbb24
AC		 804 if (divisor3 == 1)
805 divisor |= 0xc000;
806 else if (divisor3 >= 4)
807 divisor |= 0x4000;
808 else if (divisor3 != 0)
809 divisor |= 0x8000;
810 else if (divisor == 1)
811 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 812 return divisor;
813}
814
815static unsigned short int ftdi_232am_baud_to_divisor(int baud)
816{
464cbb24 817 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 818}
819
820static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
821{
822 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
823 __u32 divisor;
464cbb24
AC		 824 /* divisor shifted 3 bits to the left */
825 int divisor3 = base / 2 / baud;
1da177e4
LT		 826 divisor = divisor3 >> 3;
827 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
828 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 829 if (divisor == 1)
830 divisor = 0;
831 else if (divisor == 0x4001)
832 divisor = 1;
1da177e4
LT		 833 return divisor;
834}
835
836static __u32 ftdi_232bm_baud_to_divisor(int baud)
837{
464cbb24 838 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 839}
840
74ede0ff
IA		 841#define set_mctrl(port, set) update_mctrl((port), (set), 0)
842#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
843
464cbb24
AC		 844static int update_mctrl(struct usb_serial_port *port, unsigned int set,
845 unsigned int clear)
1da177e4
LT		 846{
847 struct ftdi_private *priv = usb_get_serial_port_data(port);
848 char *buf;
74ede0ff 849 unsigned urb_value;
1da177e4 850 int rv;
1da177e4 851
74ede0ff 852 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 853 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 854 return 0; /* no change */
855 }
1da177e4 856
1da177e4 857 buf = kmalloc(1, GFP_NOIO);
9b0f2582 858 if (!buf)
1da177e4 859 return -ENOMEM;
74ede0ff
IA		 860
861 clear &= ~set; /* 'set' takes precedence over 'clear' */
862 urb_value = 0;
863 if (clear & TIOCM_DTR)
864 urb_value |= FTDI_SIO_SET_DTR_LOW;
865 if (clear & TIOCM_RTS)
866 urb_value |= FTDI_SIO_SET_RTS_LOW;
867 if (set & TIOCM_DTR)
868 urb_value |= FTDI_SIO_SET_DTR_HIGH;
869 if (set & TIOCM_RTS)
870 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 871 rv = usb_control_msg(port->serial->dev,
872 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 873 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 874 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 875 urb_value, priv->interface,
1da177e4
LT		 876 buf, 0, WDR_TIMEOUT);
877
878 kfree(buf);
74ede0ff 879 if (rv < 0) {
43b11d33 880 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 881 __func__,
74ede0ff
IA		 882 (set & TIOCM_DTR) ? "HIGH" :
883 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
884 (set & TIOCM_RTS) ? "HIGH" :
885 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
886 } else {
441b62c1 887 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 888 (set & TIOCM_DTR) ? "HIGH" :
889 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
890 (set & TIOCM_RTS) ? "HIGH" :
891 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 892 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 893 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
894 }
1da177e4
LT		 895 return rv;
896}
897
898
464cbb24
AC		 899static __u32 get_ftdi_divisor(struct tty_struct *tty,
900 struct usb_serial_port *port)
1da177e4
LT		 901{ /* get_ftdi_divisor */
902 struct ftdi_private *priv = usb_get_serial_port_data(port);
903 __u32 div_value = 0;
904 int div_okay = 1;
905 int baud;
906
907 /*
464cbb24
AC		 908 * The logic involved in setting the baudrate can be cleanly split into
909 * 3 steps.
1da177e4 910 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 911 * 2. If these are not enough, you can set any speed using alt_speed as
912 * follows:
1da177e4
LT		 913 * - set tty->termios->c_cflag speed to B38400
914 * - set your real speed in tty->alt_speed; it gets ignored when
915 * alt_speed==0, (or)
464cbb24
AC		 916 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
917 * follows:
918 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
919 * this just sets alt_speed to (HI: 57600, VHI: 115200,
920 * SHI: 230400, WARP: 460800)
1da177e4
LT		 921 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
922 * 3. You can also set baud rate by setting custom divisor as follows
923 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 924 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
925 * follows:
1da177e4
LT		 926 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
927 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 928 * ** Step 3 is done courtesy of code borrowed from serial.c
929 * I should really spend some time and separate + move this common
930 * code to serial.c, it is replicated in nearly every serial driver
931 * you see.
1da177e4
LT		 932 */
933
464cbb24
AC		 934 /* 1. Get the baud rate from the tty settings, this observes
935 alt_speed hack */
1da177e4 936
95da310e 937 baud = tty_get_baud_rate(tty);
441b62c1 938 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 939
464cbb24
AC		 940 /* 2. Observe async-compatible custom_divisor hack, update baudrate
941 if needed */
1da177e4
LT		 942
943 if (baud == 38400 &&
944 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
945 (priv->custom_divisor)) {
946 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 947 dbg("%s - custom divisor %d sets baud rate to %d",
948 __func__, priv->custom_divisor, baud);
1da177e4
LT		 949 }
950
951 /* 3. Convert baudrate to device-specific divisor */
952
464cbb24
AC		 953 if (!baud)
954 baud = 9600;
955 switch (priv->chip_type) {
1da177e4 956 case SIO: /* SIO chip */
464cbb24 957 switch (baud) {
1da177e4
LT		 958 case 300: div_value = ftdi_sio_b300; break;
959 case 600: div_value = ftdi_sio_b600; break;
960 case 1200: div_value = ftdi_sio_b1200; break;
961 case 2400: div_value = ftdi_sio_b2400; break;
962 case 4800: div_value = ftdi_sio_b4800; break;
963 case 9600: div_value = ftdi_sio_b9600; break;
964 case 19200: div_value = ftdi_sio_b19200; break;
965 case 38400: div_value = ftdi_sio_b38400; break;
966 case 57600: div_value = ftdi_sio_b57600; break;
967 case 115200: div_value = ftdi_sio_b115200; break;
968 } /* baud */
969 if (div_value == 0) {
464cbb24
AC		 970 dbg("%s - Baudrate (%d) requested is not supported",
971 __func__, baud);
1da177e4 972 div_value = ftdi_sio_b9600;
bd5e47cc 973 baud = 9600;
1da177e4
LT		 974 div_okay = 0;
975 }
976 break;
977 case FT8U232AM: /* 8U232AM chip */
978 if (baud <= 3000000) {
979 div_value = ftdi_232am_baud_to_divisor(baud);
980 } else {
464cbb24 981 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 982 baud = 9600;
1da177e4
LT		 983 div_value = ftdi_232am_baud_to_divisor(9600);
984 div_okay = 0;
985 }
986 break;
987 case FT232BM: /* FT232BM chip */
988 case FT2232C: /* FT2232C chip */
3b009c63 989 case FT232RL:
1da177e4
LT		 990 if (baud <= 3000000) {
991 div_value = ftdi_232bm_baud_to_divisor(baud);
992 } else {
464cbb24 993 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 994 div_value = ftdi_232bm_baud_to_divisor(9600);
995 div_okay = 0;
669a6db1 996 baud = 9600;
1da177e4
LT		 997 }
998 break;
999 } /* priv->chip_type */
1000
1001 if (div_okay) {
1002 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1003 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1004 ftdi_chip_name[priv->chip_type]);
1005 }
1006
95da310e 1007 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1008 return div_value;
1da177e4
LT		 1009}
1010
95da310e
AC		 1011static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1012{
1013 struct ftdi_private *priv = usb_get_serial_port_data(port);
1014 char *buf;
464cbb24 1015 __u16 urb_value;
95da310e
AC		 1016 __u16 urb_index;
1017 __u32 urb_index_value;
1018 int rv;
1019
1020 buf = kmalloc(1, GFP_NOIO);
1021 if (!buf)
1022 return -ENOMEM;
1023
1024 urb_index_value = get_ftdi_divisor(tty, port);
1025 urb_value = (__u16)urb_index_value;
1026 urb_index = (__u16)(urb_index_value >> 16);
1027 if (priv->interface) { /* FT2232C */
1028 urb_index = (__u16)((urb_index << 8) | priv->interface);
1029 }
1030
1031 rv = usb_control_msg(port->serial->dev,
1032 usb_sndctrlpipe(port->serial->dev, 0),
1033 FTDI_SIO_SET_BAUDRATE_REQUEST,
1034 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1035 urb_value, urb_index,
1036 buf, 0, WDR_SHORT_TIMEOUT);
1037
1038 kfree(buf);
1039 return rv;
1040}
1041
557aaa7f
AC		 1042static int write_latency_timer(struct usb_serial_port *port)
1043{
1044 struct ftdi_private *priv = usb_get_serial_port_data(port);
1045 struct usb_device *udev = port->serial->dev;
1046 char buf[1];
1047 int rv = 0;
1048 int l = priv->latency;
1049
1050 if (priv->flags & ASYNC_LOW_LATENCY)
1051 l = 1;
1052
1053 dbg("%s: setting latency timer = %i", __func__, l);
1054
1055 rv = usb_control_msg(udev,
1056 usb_sndctrlpipe(udev, 0),
1057 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1058 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1059 l, priv->interface,
1060 buf, 0, WDR_TIMEOUT);
95da310e 1061
557aaa7f
AC		 1062 if (rv < 0)
1063 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1064 return rv;
1065}
1066
1067static int read_latency_timer(struct usb_serial_port *port)
1068{
1069 struct ftdi_private *priv = usb_get_serial_port_data(port);
1070 struct usb_device *udev = port->serial->dev;
1071 unsigned short latency = 0;
1072 int rv = 0;
1073
1074
1075 dbg("%s", __func__);
1076
1077 rv = usb_control_msg(udev,
1078 usb_rcvctrlpipe(udev, 0),
1079 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1080 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1081 0, priv->interface,
1082 (char *) &latency, 1, WDR_TIMEOUT);
1083
1084 if (rv < 0) {
1085 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1086 return -EIO;
1087 }
1088 return latency;
1089}
1da177e4 1090
464cbb24
AC		 1091static int get_serial_info(struct usb_serial_port *port,
1092 struct serial_struct __user *retinfo)
1da177e4
LT		 1093{
1094 struct ftdi_private *priv = usb_get_serial_port_data(port);
1095 struct serial_struct tmp;
1096
1097 if (!retinfo)
1098 return -EFAULT;
1099 memset(&tmp, 0, sizeof(tmp));
1100 tmp.flags = priv->flags;
1101 tmp.baud_base = priv->baud_base;
1102 tmp.custom_divisor = priv->custom_divisor;
1103 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1104 return -EFAULT;
1105 return 0;
1106} /* get_serial_info */
1107
1108
95da310e 1109static int set_serial_info(struct tty_struct *tty,
464cbb24 1110 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1111{ /* set_serial_info */
1112 struct ftdi_private *priv = usb_get_serial_port_data(port);
1113 struct serial_struct new_serial;
1114 struct ftdi_private old_priv;
1115
1116 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1117 return -EFAULT;
6b447f04
AC		 1118
1119 lock_kernel();
464cbb24 1120 old_priv = *priv;
1da177e4
LT		 1121
1122 /* Do error checking and permission checking */
1123
1124 if (!capable(CAP_SYS_ADMIN)) {
1125 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1126 (priv->flags & ~ASYNC_USR_MASK))) {
1127 unlock_kernel();
1da177e4 1128 return -EPERM;
64905b48 1129 }
1da177e4
LT		 1130 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1131 (new_serial.flags & ASYNC_USR_MASK));
1132 priv->custom_divisor = new_serial.custom_divisor;
1133 goto check_and_exit;
1134 }
1135
1136 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1137 (new_serial.baud_base < 9600)) {
1138 unlock_kernel();
1da177e4 1139 return -EINVAL;
6b447f04 1140 }
1da177e4
LT		 1141
1142 /* Make the changes - these are privileged changes! */
1143
1144 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1145 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1146 priv->custom_divisor = new_serial.custom_divisor;
1147
95da310e 1148 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
557aaa7f 1149 write_latency_timer(port);
1da177e4
LT		 1150
1151check_and_exit:
1152 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1153 (priv->flags & ASYNC_SPD_MASK)) {
1154 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1155 tty->alt_speed = 57600;
1da177e4 1156 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1157 tty->alt_speed = 115200;
1da177e4 1158 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1159 tty->alt_speed = 230400;
1da177e4 1160 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1161 tty->alt_speed = 460800;
1da177e4 1162 else
95da310e 1163 tty->alt_speed = 0;
1da177e4
LT		 1164 }
1165 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1166 (priv->flags & ASYNC_SPD_MASK)) ||
1167 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1168 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1169 unlock_kernel();
95da310e 1170 change_speed(tty, port);
1da177e4 1171 }
6b447f04
AC		 1172 else
1173 unlock_kernel();
95da310e 1174 return 0;
1da177e4
LT		 1175
1176} /* set_serial_info */
1177
1178
8f977e42
IA		 1179/* Determine type of FTDI chip based on USB config and descriptor. */
1180static void ftdi_determine_type(struct usb_serial_port *port)
1181{
1182 struct ftdi_private *priv = usb_get_serial_port_data(port);
1183 struct usb_serial *serial = port->serial;
1184 struct usb_device *udev = serial->dev;
1185 unsigned version;
1186 unsigned interfaces;
1187
1188 /* Assume it is not the original SIO device for now. */
f5e09b7c 1189 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1190 priv->write_offset = 0;
1191
1192 version = le16_to_cpu(udev->descriptor.bcdDevice);
1193 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1194 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1195 version, interfaces);
1196 if (interfaces > 1) {
1197 int inter;
1198
1199 /* Multiple interfaces. Assume FT2232C. */
1200 priv->chip_type = FT2232C;
1201 /* Determine interface code. */
1202 inter = serial->interface->altsetting->desc.bInterfaceNumber;
464cbb24 1203 if (inter == 0)
8f977e42 1204 priv->interface = PIT_SIOA;
464cbb24 1205 else
8f977e42 1206 priv->interface = PIT_SIOB;
8f977e42
IA		 1207 /* BM-type devices have a bug where bcdDevice gets set
1208 * to 0x200 when iSerialNumber is 0. */
1209 if (version < 0x500) {
1210 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1211 __func__);
8f977e42
IA		 1212 }
1213 } else if (version < 0x200) {
1214 /* Old device. Assume its the original SIO. */
1215 priv->chip_type = SIO;
1216 priv->baud_base = 12000000 / 16;
1217 priv->write_offset = 1;
1218 } else if (version < 0x400) {
1219 /* Assume its an FT8U232AM (or FT8U245AM) */
1220 /* (It might be a BM because of the iSerialNumber bug,
1221 * but it will still work as an AM device.) */
1222 priv->chip_type = FT8U232AM;
3b009c63 1223 } else if (version < 0x600) {
8f977e42
IA		 1224 /* Assume its an FT232BM (or FT245BM) */
1225 priv->chip_type = FT232BM;
3b009c63
DB		 1226 } else {
1227 /* Assume its an FT232R */
1228 priv->chip_type = FT232RL;
8f977e42 1229 }
c197a8db 1230 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1231}
1232
1233
1da177e4
LT		 1234/*
1235 * ***************************************************************************
1236 * Sysfs Attribute
1237 * ***************************************************************************
1238 */
1239
464cbb24
AC		 1240static ssize_t show_latency_timer(struct device *dev,
1241 struct device_attribute *attr, char *buf)
1da177e4
LT		 1242{
1243 struct usb_serial_port *port = to_usb_serial_port(dev);
1244 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1245 if (priv->flags & ASYNC_LOW_LATENCY)
1246 return sprintf(buf, "1\n");
1247 else
1248 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1249}
1250
557aaa7f 1251
1da177e4 1252/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1253static ssize_t store_latency_timer(struct device *dev,
1254 struct device_attribute *attr, const char *valbuf,
1255 size_t count)
1da177e4
LT		 1256{
1257 struct usb_serial_port *port = to_usb_serial_port(dev);
1258 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4
LT		 1259 int v = simple_strtoul(valbuf, NULL, 10);
1260 int rv = 0;
5c09d144 1261
557aaa7f
AC		 1262 priv->latency = v;
1263 rv = write_latency_timer(port);
1264 if (rv < 0)
1da177e4 1265 return -EIO;
1da177e4
LT		 1266 return count;
1267}
1268
1269/* Write an event character directly to the FTDI register. The ASCII
1270 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1271static ssize_t store_event_char(struct device *dev,
1272 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1273{
1274 struct usb_serial_port *port = to_usb_serial_port(dev);
1275 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1276 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1277 char buf[1];
1278 int v = simple_strtoul(valbuf, NULL, 10);
1279 int rv = 0;
5c09d144 1280
441b62c1 1281 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1282
1da177e4
LT		 1283 rv = usb_control_msg(udev,
1284 usb_sndctrlpipe(udev, 0),
1285 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1286 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1287 v, priv->interface,
1da177e4 1288 buf, 0, WDR_TIMEOUT);
5c09d144 1289
1da177e4
LT		 1290 if (rv < 0) {
1291 dbg("Unable to write event character: %i", rv);
1292 return -EIO;
1293 }
5c09d144 1294
1da177e4
LT		 1295 return count;
1296}
1297
464cbb24
AC		 1298static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1299 store_latency_timer);
1da177e4
LT		 1300static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1301
12bdbe03 1302static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1303{
12bdbe03 1304 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1305 int retval = 0;
1da177e4 1306
464cbb24 1307 dbg("%s", __func__);
13f4db9e 1308
1da177e4
LT		 1309 /* XXX I've no idea if the original SIO supports the event_char
1310 * sysfs parameter, so I'm playing it safe. */
1311 if (priv->chip_type != SIO) {
1312 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1313 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1314 if ((!retval) &&
97cd49eb
SM		 1315 (priv->chip_type == FT232BM ||
1316 priv->chip_type == FT2232C ||
1317 priv->chip_type == FT232RL)) {
12bdbe03 1318 retval = device_create_file(&port->dev,
13f4db9e 1319 &dev_attr_latency_timer);
1da177e4
LT		 1320 }
1321 }
13f4db9e 1322 return retval;
1da177e4
LT		 1323}
1324
12bdbe03 1325static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1326{
12bdbe03 1327 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1328
464cbb24 1329 dbg("%s", __func__);
1da177e4 1330
1da177e4
LT		 1331 /* XXX see create_sysfs_attrs */
1332 if (priv->chip_type != SIO) {
12bdbe03 1333 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1334 if (priv->chip_type == FT232BM ||
1335 priv->chip_type == FT2232C ||
1336 priv->chip_type == FT232RL) {
12bdbe03 1337 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1338 }
1339 }
5c09d144 1340
1da177e4
LT		 1341}
1342
1343/*
1344 * ***************************************************************************
1345 * FTDI driver specific functions
1346 * ***************************************************************************
1347 */
1348
8f977e42 1349/* Probe function to check for special devices */
464cbb24
AC		 1350static int ftdi_sio_probe(struct usb_serial *serial,
1351 const struct usb_device_id *id)
8f977e42 1352{
464cbb24
AC		 1353 struct ftdi_sio_quirk *quirk =
1354 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1355
1356 if (quirk && quirk->probe) {
1357 int ret = quirk->probe(serial);
1358 if (ret != 0)
1359 return ret;
1360 }
1361
8f977e42
IA		 1362 usb_set_serial_data(serial, (void *)id->driver_info);
1363
fa91d43b 1364 return 0;
8f977e42
IA		 1365}
1366
12bdbe03 1367static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1368{
1da177e4 1369 struct ftdi_private *priv;
0ffbbe25
ON		 1370 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1371
13f4db9e 1372
464cbb24 1373 dbg("%s", __func__);
1da177e4 1374
80b6ca48 1375 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1376 if (!priv) {
194343d9 1377 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1378 sizeof(struct ftdi_private));
1da177e4
LT		 1379 return -ENOMEM;
1380 }
1da177e4 1381
c45d6320 1382 kref_init(&priv->kref);
1da177e4 1383 spin_lock_init(&priv->rx_lock);
22465400 1384 spin_lock_init(&priv->tx_lock);
464cbb24 1385 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1386 /* This will push the characters through immediately rather
1387 than queue a task to deliver them */
1388 priv->flags = ASYNC_LOW_LATENCY;
1389
0ffbbe25
ON		 1390 if (quirk && quirk->port_probe)
1391 quirk->port_probe(priv);
1392
1da177e4 1393 /* Increase the size of read buffers */
1bc3c9e1 1394 kfree(port->bulk_in_buffer);
464cbb24 1395 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1396 if (!port->bulk_in_buffer) {
464cbb24 1397 kfree(priv);
1da177e4
LT		 1398 return -ENOMEM;
1399 }
1400 if (port->read_urb) {
1401 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1402 port->read_urb->transfer_buffer_length = BUFSZ;
1403 }
1404
c4028958
DH		 1405 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1406 priv->port = port;
76854cea 1407
1da177e4
LT		 1408 /* Free port's existing write urb and transfer buffer. */
1409 if (port->write_urb) {
464cbb24 1410 usb_free_urb(port->write_urb);
1da177e4
LT		 1411 port->write_urb = NULL;
1412 }
1bc3c9e1
JJ		 1413 kfree(port->bulk_out_buffer);
1414 port->bulk_out_buffer = NULL;
1da177e4 1415
12bdbe03 1416 usb_set_serial_port_data(port, priv);
1da177e4 1417
464cbb24 1418 ftdi_determine_type(port);
557aaa7f 1419 read_latency_timer(port);
12bdbe03
JR		 1420 create_sysfs_attrs(port);
1421 return 0;
1422}
1da177e4 1423
8f977e42
IA		 1424/* Setup for the USB-UIRT device, which requires hardwired
1425 * baudrate (38400 gets mapped to 312500) */
1da177e4 1426/* Called from usbserial:serial_probe */
464cbb24 1427static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1428{
464cbb24 1429 dbg("%s", __func__);
1da177e4 1430
1da177e4
LT		 1431 priv->flags |= ASYNC_SPD_CUST;
1432 priv->custom_divisor = 77;
669a6db1 1433 priv->force_baud = 38400;
8f977e42 1434} /* ftdi_USB_UIRT_setup */
1da177e4 1435
8f977e42
IA		 1436/* Setup for the HE-TIRA1 device, which requires hardwired
1437 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1438
1439static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1440{
464cbb24 1441 dbg("%s", __func__);
1da177e4 1442
1da177e4
LT		 1443 priv->flags |= ASYNC_SPD_CUST;
1444 priv->custom_divisor = 240;
669a6db1 1445 priv->force_baud = 38400;
1da177e4 1446 priv->force_rtscts = 1;
8f977e42 1447} /* ftdi_HE_TIRA1_setup */
1da177e4 1448
fa91d43b 1449/*
20734345
HW		 1450 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1451 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1452 * userspace using openocd.
fa91d43b 1453 */
20734345 1454static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1455{
1456 struct usb_device *udev = serial->dev;
1457 struct usb_interface *interface = serial->interface;
1458
464cbb24 1459 dbg("%s", __func__);
fa91d43b
TL		 1460
1461 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1462 dev_info(&udev->dev,
1463 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1464 return -ENODEV;
1465 }
1466
1467 return 0;
1468}
1da177e4 1469
546d7eec
KV		 1470/*
1471 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1472 * We have to correct it if we want to read from it.
1473 */
1474static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1475{
1476 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1477 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1478
1479 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1480 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1481 dev_info(&serial->dev->dev,
1482 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1483 }
1484
1485 return 0;
1486}
1487
5c09d144 1488/* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1da177e4
LT		 1489 * it is called when the usb device is disconnected
1490 *
1491 * usbserial:usb_serial_disconnect
1492 * calls __serial_close for each open of the port
1493 * shutdown is called then (ie ftdi_shutdown)
1494 */
464cbb24 1495static void ftdi_shutdown(struct usb_serial *serial)
12bdbe03 1496{
441b62c1 1497 dbg("%s", __func__);
12bdbe03 1498}
5c09d144 1499
c45d6320
AS		 1500static void ftdi_sio_priv_release(struct kref *k)
1501{
1502 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1503
1504 kfree(priv);
1505}
1506
12bdbe03
JR		 1507static int ftdi_sio_port_remove(struct usb_serial_port *port)
1508{
1da177e4
LT		 1509 struct ftdi_private *priv = usb_get_serial_port_data(port);
1510
441b62c1 1511 dbg("%s", __func__);
1da177e4 1512
12bdbe03 1513 remove_sysfs_attrs(port);
5c09d144 1514
80193195 1515 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1516
12bdbe03
JR		 1517 return 0;
1518}
1da177e4 1519
95da310e
AC		 1520static int ftdi_open(struct tty_struct *tty,
1521 struct usb_serial_port *port, struct file *filp)
1da177e4 1522{ /* ftdi_open */
1da177e4
LT		 1523 struct usb_device *dev = port->serial->dev;
1524 struct ftdi_private *priv = usb_get_serial_port_data(port);
1525 unsigned long flags;
5c09d144 1526
1da177e4
LT		 1527 int result = 0;
1528 char buf[1]; /* Needed for the usb_control_msg I think */
1529
441b62c1 1530 dbg("%s", __func__);
1da177e4 1531
22465400
IA		 1532 spin_lock_irqsave(&priv->tx_lock, flags);
1533 priv->tx_bytes = 0;
1534 spin_unlock_irqrestore(&priv->tx_lock, flags);
1535 spin_lock_irqsave(&priv->rx_lock, flags);
1536 priv->rx_bytes = 0;
1537 spin_unlock_irqrestore(&priv->rx_lock, flags);
1538
95da310e
AC		 1539 if (tty)
1540 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4 1541
557aaa7f
AC		 1542 write_latency_timer(port);
1543
1da177e4
LT		 1544 /* No error checking for this (will get errors later anyway) */
1545 /* See ftdi_sio.h for description of what is reset */
1546 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1547 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1548 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1549 priv->interface, buf, 0, WDR_TIMEOUT);
1550
1551 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1552 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1553 This is same behaviour as serial.c/rs_open() - Kuba */
1554
1555 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1556 if (tty)
1557 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1558
1da177e4
LT		 1559 /* Not throttled */
1560 spin_lock_irqsave(&priv->rx_lock, flags);
1561 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1562 spin_unlock_irqrestore(&priv->rx_lock, flags);
1563
1564 /* Start reading from the device */
76854cea 1565 priv->rx_processed = 0;
1da177e4 1566 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1567 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1568 port->read_urb->transfer_buffer,
1569 port->read_urb->transfer_buffer_length,
1570 ftdi_read_bulk_callback, port);
1da177e4
LT		 1571 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1572 if (result)
194343d9
GKH		 1573 dev_err(&port->dev,
1574 "%s - failed submitting read urb, error %d\n",
1575 __func__, result);
c45d6320
AS		 1576 else
1577 kref_get(&priv->kref);
1da177e4
LT		 1578
1579 return result;
1580} /* ftdi_open */
1581
1582
335f8514
AC		 1583static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1584{
1585 struct ftdi_private *priv = usb_get_serial_port_data(port);
1586 char buf[1];
1587
1588 mutex_lock(&port->serial->disc_mutex);
1589 if (!port->serial->disconnected) {
1590 /* Disable flow control */
1591 if (!on && usb_control_msg(port->serial->dev,
1592 usb_sndctrlpipe(port->serial->dev, 0),
1593 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1594 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1595 0, priv->interface, buf, 0,
1596 WDR_TIMEOUT) < 0) {
1597 dev_err(&port->dev, "error from flowcontrol urb\n");
1598 }
1599 /* drop RTS and DTR */
1600 if (on)
1601 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1602 else
1603 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1604 }
1605 mutex_unlock(&port->serial->disc_mutex);
1606}
1da177e4 1607
5c09d144 1608/*
1da177e4
LT		 1609 * usbserial:__serial_close only calls ftdi_close if the point is open
1610 *
1611 * This only gets called when it is the last close
5c09d144
DB		 1612 *
1613 *
1da177e4
LT		 1614 */
1615
335f8514 1616static void ftdi_close(struct usb_serial_port *port)
1da177e4 1617{ /* ftdi_close */
1da177e4 1618 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1619
441b62c1 1620 dbg("%s", __func__);
1da177e4 1621
76854cea
IA		 1622
1623 /* cancel any scheduled reading */
c45d6320 1624 cancel_delayed_work_sync(&priv->rx_work);
5c09d144 1625
1da177e4 1626 /* shutdown our bulk read */
794c944e 1627 usb_kill_urb(port->read_urb);
c45d6320 1628 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1629} /* ftdi_close */
1630
1631
5c09d144 1632
1da177e4
LT		 1633/* The SIO requires the first byte to have:
1634 * B0 1
1635 * B1 0
1636 * B2..7 length of message excluding byte 0
1637 *
1638 * The new devices do not require this byte
1639 */
95da310e 1640static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1641 const unsigned char *buf, int count)
1642{ /* ftdi_write */
1643 struct ftdi_private *priv = usb_get_serial_port_data(port);
1644 struct urb *urb;
1645 unsigned char *buffer;
1646 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1647 int status;
1648 int transfer_size;
22465400 1649 unsigned long flags;
1da177e4 1650
441b62c1 1651 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1652
1653 if (count == 0) {
1654 dbg("write request of 0 bytes");
1655 return 0;
1656 }
22465400
IA		 1657 spin_lock_irqsave(&priv->tx_lock, flags);
1658 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1659 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1660 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1661 return 0;
1662 }
62127a58 1663 priv->tx_outstanding_urbs++;
22465400 1664 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1665
1da177e4 1666 data_offset = priv->write_offset;
464cbb24 1667 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1668
1669 /* Determine total transfer size */
1670 transfer_size = count;
1671 if (data_offset > 0) {
1672 /* Original sio needs control bytes too... */
1673 transfer_size += (data_offset *
1674 ((count + (PKTSZ - 1 - data_offset)) /
1675 (PKTSZ - data_offset)));
1676 }
1677
464cbb24 1678 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1679 if (!buffer) {
194343d9
GKH		 1680 dev_err(&port->dev,
1681 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1682 count = -ENOMEM;
1683 goto error_no_buffer;
1da177e4
LT		 1684 }
1685
1686 urb = usb_alloc_urb(0, GFP_ATOMIC);
1687 if (!urb) {
194343d9 1688 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1689 count = -ENOMEM;
1690 goto error_no_urb;
1da177e4
LT		 1691 }
1692
1693 /* Copy data */
1694 if (data_offset > 0) {
464cbb24
AC		 1695 /* Original sio requires control byte at start of
1696 each packet. */
1da177e4
LT		 1697 int user_pktsz = PKTSZ - data_offset;
1698 int todo = count;
1699 unsigned char *first_byte = buffer;
1700 const unsigned char *current_position = buf;
1701
1702 while (todo > 0) {
464cbb24 1703 if (user_pktsz > todo)
1da177e4 1704 user_pktsz = todo;
1da177e4 1705 /* Write the control byte at the front of the packet*/
5c09d144 1706 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1707 /* Copy data for packet */
464cbb24 1708 memcpy(first_byte + data_offset,
1da177e4
LT		 1709 current_position, user_pktsz);
1710 first_byte += user_pktsz + data_offset;
1711 current_position += user_pktsz;
1712 todo -= user_pktsz;
1713 }
1714 } else {
1715 /* No control byte required. */
1716 /* Copy in the data to send */
464cbb24 1717 memcpy(buffer, buf, count);
1da177e4
LT		 1718 }
1719
464cbb24
AC		 1720 usb_serial_debug_data(debug, &port->dev, __func__,
1721 transfer_size, buffer);
1da177e4
LT		 1722
1723 /* fill the buffer and send it */
5c09d144 1724 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1725 usb_sndbulkpipe(port->serial->dev,
1726 port->bulk_out_endpointAddress),
1727 buffer, transfer_size,
1728 ftdi_write_bulk_callback, port);
1da177e4
LT		 1729
1730 status = usb_submit_urb(urb, GFP_ATOMIC);
1731 if (status) {
194343d9
GKH		 1732 dev_err(&port->dev,
1733 "%s - failed submitting write urb, error %d\n",
1734 __func__, status);
1da177e4 1735 count = status;
62127a58 1736 goto error;
22465400
IA		 1737 } else {
1738 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1739 priv->tx_outstanding_bytes += count;
1740 priv->tx_bytes += count;
1741 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1742 }
1743
1744 /* we are done with this urb, so let the host driver
1745 * really free it when it is finished with it */
62127a58 1746 usb_free_urb(urb);
1da177e4 1747
441b62c1 1748 dbg("%s write returning: %d", __func__, count);
1da177e4 1749 return count;
62127a58
ON		 1750error:
1751 usb_free_urb(urb);
1752error_no_urb:
464cbb24 1753 kfree(buffer);
62127a58
ON		 1754error_no_buffer:
1755 spin_lock_irqsave(&priv->tx_lock, flags);
1756 priv->tx_outstanding_urbs--;
1757 spin_unlock_irqrestore(&priv->tx_lock, flags);
1758 return count;
1da177e4
LT		 1759} /* ftdi_write */
1760
1761
1762/* This function may get called when the device is closed */
1763
464cbb24 1764static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1765{
22465400 1766 unsigned long flags;
cdc97792 1767 struct usb_serial_port *port = urb->context;
22465400
IA		 1768 struct ftdi_private *priv;
1769 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1770 unsigned long countback;
0fb0aa18 1771 int status = urb->status;
1da177e4
LT		 1772
1773 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1774 kfree(urb->transfer_buffer);
1da177e4 1775
441b62c1 1776 dbg("%s - port %d", __func__, port->number);
5c09d144 1777
0fb0aa18
GKH		 1778 if (status) {
1779 dbg("nonzero write bulk status received: %d", status);
1da177e4
LT		 1780 return;
1781 }
1782
22465400
IA		 1783 priv = usb_get_serial_port_data(port);
1784 if (!priv) {
441b62c1 1785 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1786 return;
1787 }
1788 /* account for transferred data */
1789 countback = urb->actual_length;
1790 data_offset = priv->write_offset;
1791 if (data_offset > 0) {
1792 /* Subtract the control bytes */
dfa5ec79 1793 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
22465400
IA		 1794 }
1795 spin_lock_irqsave(&priv->tx_lock, flags);
1796 --priv->tx_outstanding_urbs;
1797 priv->tx_outstanding_bytes -= countback;
1798 spin_unlock_irqrestore(&priv->tx_lock, flags);
1799
cf2c7481 1800 usb_serial_port_softint(port);
1da177e4
LT		 1801} /* ftdi_write_bulk_callback */
1802
1803
95da310e 1804static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1805{
95da310e 1806 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1807 struct ftdi_private *priv = usb_get_serial_port_data(port);
1808 int room;
1809 unsigned long flags;
1810
441b62c1 1811 dbg("%s - port %d", __func__, port->number);
1da177e4 1812
22465400
IA		 1813 spin_lock_irqsave(&priv->tx_lock, flags);
1814 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1815 /*
1816 * We really can take anything the user throws at us
1817 * but let's pick a nice big number to tell the tty
1818 * layer that we have lots of free space
1819 */
1820 room = 2048;
1821 } else {
1822 room = 0;
1823 }
1824 spin_unlock_irqrestore(&priv->tx_lock, flags);
1825 return room;
95da310e 1826}
1da177e4 1827
95da310e
AC		 1828static int ftdi_chars_in_buffer(struct tty_struct *tty)
1829{
1830 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1831 struct ftdi_private *priv = usb_get_serial_port_data(port);
1832 int buffered;
1833 unsigned long flags;
1834
441b62c1 1835 dbg("%s - port %d", __func__, port->number);
1da177e4 1836
22465400
IA		 1837 spin_lock_irqsave(&priv->tx_lock, flags);
1838 buffered = (int)priv->tx_outstanding_bytes;
1839 spin_unlock_irqrestore(&priv->tx_lock, flags);
1840 if (buffered < 0) {
194343d9
GKH		 1841 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1842 __func__);
22465400
IA		 1843 buffered = 0;
1844 }
1845 return buffered;
95da310e 1846}
1da177e4 1847
95da310e
AC		 1848static void ftdi_read_bulk_callback(struct urb *urb)
1849{
cdc97792 1850 struct usb_serial_port *port = urb->context;
1da177e4
LT		 1851 struct tty_struct *tty;
1852 struct ftdi_private *priv;
22465400
IA		 1853 unsigned long countread;
1854 unsigned long flags;
0fb0aa18 1855 int status = urb->status;
1da177e4
LT		 1856
1857 if (urb->number_of_packets > 0) {
194343d9
GKH		 1858 dev_err(&port->dev, "%s transfer_buffer_length %d "
1859 "actual_length %d number of packets %d\n", __func__,
1860 urb->transfer_buffer_length,
1861 urb->actual_length, urb->number_of_packets);
1862 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1863 urb->transfer_flags);
1da177e4
LT		 1864 }
1865
441b62c1 1866 dbg("%s - port %d", __func__, port->number);
1da177e4 1867
95da310e 1868 if (port->port.count <= 0)
1da177e4
LT		 1869 return;
1870
4a90f09b 1871 tty = tty_port_tty_get(&port->port);
1da177e4 1872 if (!tty) {
464cbb24 1873 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1874 return;
1875 }
1876
1877 priv = usb_get_serial_port_data(port);
1878 if (!priv) {
441b62c1 1879 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1880 goto out;
1da177e4
LT		 1881 }
1882
464cbb24 1883 if (urb != port->read_urb)
194343d9 1884 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1da177e4 1885
0fb0aa18 1886 if (status) {
464cbb24
AC		 1887 /* This will happen at close every time so it is a dbg not an
1888 err */
1889 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
4a90f09b 1890 goto out;
1da177e4
LT		 1891 }
1892
22465400
IA		 1893 /* count data bytes, but not status bytes */
1894 countread = urb->actual_length;
dfa5ec79 1895 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
22465400
IA		 1896 spin_lock_irqsave(&priv->rx_lock, flags);
1897 priv->rx_bytes += countread;
1898 spin_unlock_irqrestore(&priv->rx_lock, flags);
1899
c4028958 1900 ftdi_process_read(&priv->rx_work.work);
4a90f09b
AC		 1901out:
1902 tty_kref_put(tty);
1da177e4
LT		 1903} /* ftdi_read_bulk_callback */
1904
1905
464cbb24 1906static void ftdi_process_read(struct work_struct *work)
1da177e4 1907{ /* ftdi_process_read */
c4028958
DH		 1908 struct ftdi_private *priv =
1909 container_of(work, struct ftdi_private, rx_work.work);
1910 struct usb_serial_port *port = priv->port;
1da177e4
LT		 1911 struct urb *urb;
1912 struct tty_struct *tty;
1da177e4 1913 char error_flag;
5c09d144 1914 unsigned char *data;
1da177e4
LT		 1915
1916 int i;
1917 int result;
1918 int need_flip;
1919 int packet_offset;
76854cea 1920 unsigned long flags;
1da177e4 1921
441b62c1 1922 dbg("%s - port %d", __func__, port->number);
1da177e4 1923
95da310e 1924 if (port->port.count <= 0)
1da177e4
LT		 1925 return;
1926
4a90f09b 1927 tty = tty_port_tty_get(&port->port);
1da177e4 1928 if (!tty) {
464cbb24 1929 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1930 return;
1931 }
1932
1933 priv = usb_get_serial_port_data(port);
1934 if (!priv) {
441b62c1 1935 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1936 goto out;
1da177e4
LT		 1937 }
1938
1939 urb = port->read_urb;
1940 if (!urb) {
441b62c1 1941 dbg("%s - bad read_urb pointer - exiting", __func__);
4a90f09b 1942 goto out;
1da177e4
LT		 1943 }
1944
1945 data = urb->transfer_buffer;
1946
76854cea 1947 if (priv->rx_processed) {
441b62c1 1948 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 1949 priv->rx_processed,
1950 urb->actual_length - priv->rx_processed);
1da177e4 1951 } else {
76854cea 1952 /* The first two bytes of every read packet are status */
464cbb24
AC		 1953 if (urb->actual_length > 2)
1954 usb_serial_debug_data(debug, &port->dev, __func__,
1955 urb->actual_length, data);
1956 else
1957 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 1958 }
1da177e4
LT		 1959
1960
1961 /* TO DO -- check for hung up line and handle appropriately: */
1962 /* send hangup */
1963 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1964 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1965
1966 need_flip = 0;
464cbb24
AC		 1967 for (packet_offset = priv->rx_processed;
1968 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
76854cea
IA		 1969 int length;
1970
464cbb24
AC		 1971 /* Compare new line status to the old one, signal if different/
1972 N.B. packet may be processed more than once, but differences
1973 are only processed once. */
00185a60
JL		 1974 char new_status = data[packet_offset + 0] &
1975 FTDI_STATUS_B0_MASK;
1976 if (new_status != priv->prev_status) {
1977 priv->diff_status |=
1978 new_status ^ priv->prev_status;
1979 wake_up_interruptible(&priv->delta_msr_wait);
1980 priv->prev_status = new_status;
1da177e4
LT		 1981 }
1982
8c209e67 1983 length = min_t(u32, PKTSZ, urb->actual_length-packet_offset)-2;
76854cea 1984 if (length < 0) {
194343d9
GKH		 1985 dev_err(&port->dev, "%s - bad packet length: %d\n",
1986 __func__, length+2);
76854cea
IA		 1987 length = 0;
1988 }
1989
76854cea 1990 if (priv->rx_flags & THROTTLED) {
441b62c1 1991 dbg("%s - throttled", __func__);
76854cea
IA		 1992 break;
1993 }
33f0f88f 1994 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 1995 /* break out & wait for throttling/unthrottling to
1996 happen */
441b62c1 1997 dbg("%s - receive room low", __func__);
76854cea
IA		 1998 break;
1999 }
2000
1da177e4
LT		 2001 /* Handle errors and break */
2002 error_flag = TTY_NORMAL;
464cbb24
AC		 2003 /* Although the device uses a bitmask and hence can have
2004 multiple errors on a packet - the order here sets the
2005 priority the error is returned to the tty layer */
1da177e4 2006
464cbb24 2007 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 2008 error_flag = TTY_OVERRUN;
2009 dbg("OVERRRUN error");
2010 }
464cbb24 2011 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 2012 error_flag = TTY_BREAK;
2013 dbg("BREAK received");
2014 }
464cbb24 2015 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 2016 error_flag = TTY_PARITY;
2017 dbg("PARITY error");
2018 }
464cbb24 2019 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 2020 error_flag = TTY_FRAME;
2021 dbg("FRAMING error");
2022 }
76854cea
IA		 2023 if (length > 0) {
2024 for (i = 2; i < length+2; i++) {
5c09d144 2025 /* Note that the error flag is duplicated for
1da177e4
LT		 2026 every character received since we don't know
2027 which character it applied to */
464cbb24
AC		 2028 tty_insert_flip_char(tty,
2029 data[packet_offset + i], error_flag);
1da177e4
LT		 2030 }
2031 need_flip = 1;
2032 }
2033
2034#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2035 /* if a parity error is detected you get status packets forever
2036 until a character is sent without a parity error.
464cbb24
AC		 2037 This doesn't work well since the application receives a
2038 never ending stream of bad data - even though new data
2039 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 2040 However - this might make sense for framing errors and so on
1da177e4
LT		 2041 so I am leaving the code in for now.
2042 */
2043 else {
464cbb24 2044 if (error_flag != TTY_NORMAL) {
1da177e4 2045 dbg("error_flag is not normal");
464cbb24
AC		 2046 /* In this case it is just status - if that is
2047 an error send a bad character */
2048 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 2049 tty_flip_buffer_push(tty);
1da177e4
LT		 2050 tty_insert_flip_char(tty, 0xff, error_flag);
2051 need_flip = 1;
2052 }
2053 }
2054#endif
2055 } /* "for(packet_offset=0..." */
2056
2057 /* Low latency */
464cbb24 2058 if (need_flip)
1da177e4 2059 tty_flip_buffer_push(tty);
1da177e4 2060
76854cea
IA		 2061 if (packet_offset < urb->actual_length) {
2062 /* not completely processed - record progress */
2063 priv->rx_processed = packet_offset;
2064 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2065 __func__, packet_offset,
76854cea
IA		 2066 urb->actual_length - packet_offset);
2067 /* check if we were throttled while processing */
2068 spin_lock_irqsave(&priv->rx_lock, flags);
2069 if (priv->rx_flags & THROTTLED) {
2070 priv->rx_flags |= ACTUALLY_THROTTLED;
2071 spin_unlock_irqrestore(&priv->rx_lock, flags);
2072 dbg("%s - deferring remainder until unthrottled",
441b62c1 2073 __func__);
a9fec710 2074 goto out;
76854cea
IA		 2075 }
2076 spin_unlock_irqrestore(&priv->rx_lock, flags);
2077 /* if the port is closed stop trying to read */
464cbb24 2078 if (port->port.count > 0)
76854cea
IA		 2079 /* delay processing of remainder */
2080 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2081 else
441b62c1 2082 dbg("%s - port is closed", __func__);
4a90f09b 2083 goto out;
76854cea
IA		 2084 }
2085
2086 /* urb is completely processed */
2087 priv->rx_processed = 0;
2088
1da177e4 2089 /* if the port is closed stop trying to read */
464cbb24 2090 if (port->port.count > 0) {
1da177e4 2091 /* Continue trying to always read */
5c09d144 2092 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2093 usb_rcvbulkpipe(port->serial->dev,
2094 port->bulk_in_endpointAddress),
2095 port->read_urb->transfer_buffer,
2096 port->read_urb->transfer_buffer_length,
2097 ftdi_read_bulk_callback, port);
1da177e4
LT		 2098
2099 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2100 if (result)
194343d9
GKH		 2101 dev_err(&port->dev,
2102 "%s - failed resubmitting read urb, error %d\n",
2103 __func__, result);
1da177e4 2104 }
4a90f09b
AC		 2105out:
2106 tty_kref_put(tty);
1da177e4
LT		 2107} /* ftdi_process_read */
2108
2109
95da310e 2110static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2111{
95da310e 2112 struct usb_serial_port *port = tty->driver_data;
1da177e4 2113 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2114 __u16 urb_value = 0;
1da177e4 2115 char buf[1];
5c09d144 2116
1da177e4
LT		 2117 /* break_state = -1 to turn on break, and 0 to turn off break */
2118 /* see drivers/char/tty_io.c to see it used */
2119 /* last_set_data_urb_value NEVER has the break bit set in it */
2120
464cbb24 2121 if (break_state)
1da177e4 2122 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2123 else
5c09d144 2124 urb_value = priv->last_set_data_urb_value;
5c09d144 2125
464cbb24
AC		 2126 if (usb_control_msg(port->serial->dev,
2127 usb_sndctrlpipe(port->serial->dev, 0),
2128 FTDI_SIO_SET_DATA_REQUEST,
2129 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2130 urb_value , priv->interface,
2131 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2132 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2133 "(state was %d)\n", __func__, break_state);
5c09d144 2134 }
1da177e4 2135
464cbb24
AC		 2136 dbg("%s break state is %d - urb is %d", __func__,
2137 break_state, urb_value);
5c09d144 2138
1da177e4
LT		 2139}
2140
2141
2142/* old_termios contains the original termios settings and tty->termios contains
2143 * the new setting to be used
2144 * WARNING: set_termios calls this with old_termios in kernel space
2145 */
2146
95da310e
AC		 2147static void ftdi_set_termios(struct tty_struct *tty,
2148 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2149{ /* ftdi_termios */
2150 struct usb_device *dev = port->serial->dev;
1da177e4 2151 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2152 struct ktermios *termios = tty->termios;
669a6db1 2153 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2154 __u16 urb_value; /* will hold the new flags */
2155 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2156
464cbb24 2157 /* Added for xon/xoff support */
669a6db1 2158 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2159 unsigned char vstop;
2160 unsigned char vstart;
5c09d144 2161
441b62c1 2162 dbg("%s", __func__);
1da177e4 2163
464cbb24
AC		 2164 /* Force baud rate if this device requires it, unless it is set to
2165 B0. */
669a6db1 2166 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2167 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2168 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2169 priv->force_baud);
1da177e4
LT		 2170 }
2171
2172 /* Force RTS-CTS if this device requires it. */
2173 if (priv->force_rtscts) {
441b62c1 2174 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2175 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2176 }
2177
669a6db1 2178 cflag = termios->c_cflag;
1da177e4 2179
5c09d144
DB		 2180 /* FIXME -For this cut I don't care if the line is really changing or
2181 not - so just do the change regardless - should be able to
1da177e4 2182 compare old_termios and tty->termios */
5c09d144 2183 /* NOTE These routines can get interrupted by
464cbb24
AC		 2184 ftdi_sio_read_bulk_callback - need to examine what this means -
2185 don't see any problems yet */
5c09d144 2186
1da177e4 2187 /* Set number of data bits, parity, stop bits */
5c09d144 2188
669a6db1
AC		 2189 termios->c_cflag &= ~CMSPAR;
2190
1da177e4
LT		 2191 urb_value = 0;
2192 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2193 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2194 urb_value |= (cflag & PARENB ?
2195 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2196 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2197 FTDI_SIO_SET_DATA_PARITY_NONE);
2198 if (cflag & CSIZE) {
2199 switch (cflag & CSIZE) {
2200 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2201 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2202 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2203 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2204 default:
194343d9 2205 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2206 }
2207 }
2208
464cbb24
AC		 2209 /* This is needed by the break command since it uses the same command
2210 - but is or'ed with this value */
1da177e4 2211 priv->last_set_data_urb_value = urb_value;
5c09d144 2212
1da177e4 2213 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2214 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2215 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2216 urb_value , priv->interface,
279e1545 2217 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2218 dev_err(&port->dev, "%s FAILED to set "
2219 "databits/stopbits/parity\n", __func__);
5c09d144 2220 }
1da177e4
LT		 2221
2222 /* Now do the baudrate */
464cbb24 2223 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2224 /* Disable flow control */
2225 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2226 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2227 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2228 0, priv->interface,
1da177e4 2229 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2230 dev_err(&port->dev,
2231 "%s error from disable flowcontrol urb\n",
2232 __func__);
5c09d144 2233 }
1da177e4 2234 /* Drop RTS and DTR */
74ede0ff 2235 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2236 } else {
2237 /* set the baudrate determined before */
464cbb24 2238 if (change_speed(tty, port))
194343d9
GKH		 2239 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2240 __func__);
72a755fc 2241 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2242 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2243 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2244 }
2245
2246 /* Set flow control */
2247 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2248 if (cflag & CRTSCTS) {
441b62c1 2249 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2250 if (usb_control_msg(dev,
1da177e4 2251 usb_sndctrlpipe(dev, 0),
5c09d144 2252 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2253 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2254 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2255 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2256 dev_err(&port->dev,
2257 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2258 }
2259
2260 } else {
1da177e4
LT		 2261 /*
2262 * Xon/Xoff code
2263 *
464cbb24
AC		 2264 * Check the IXOFF status in the iflag component of the
2265 * termios structure. If IXOFF is not set, the pre-xon/xoff
2266 * code is executed.
2267 */
1da177e4 2268 if (iflag & IXOFF) {
464cbb24
AC		 2269 dbg("%s request to enable xonxoff iflag=%04x",
2270 __func__, iflag);
2271 /* Try to enable the XON/XOFF on the ftdi_sio
2272 * Set the vstart and vstop -- could have been done up
2273 * above where a lot of other dereferencing is done but
2274 * that would be very inefficient as vstart and vstop
2275 * are not always needed.
2276 */
669a6db1
AC		 2277 vstart = termios->c_cc[VSTART];
2278 vstop = termios->c_cc[VSTOP];
464cbb24 2279 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2280
2281 if (usb_control_msg(dev,
2282 usb_sndctrlpipe(dev, 0),
2283 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2284 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2285 urb_value , (FTDI_SIO_XON_XOFF_HS
2286 | priv->interface),
2287 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2288 dev_err(&port->dev, "urb failed to set to "
2289 "xon/xoff flow control\n");
1da177e4
LT		 2290 }
2291 } else {
464cbb24
AC		 2292 /* else clause to only run if cflag ! CRTSCTS and iflag
2293 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2294 * stack - not by device */
441b62c1 2295 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2296 if (usb_control_msg(dev,
1da177e4 2297 usb_sndctrlpipe(dev, 0),
5c09d144 2298 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2299 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2300 0, priv->interface,
1da177e4 2301 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2302 dev_err(&port->dev,
2303 "urb failed to clear flow control\n");
5c09d144 2304 }
1da177e4 2305 }
5c09d144 2306
1da177e4
LT		 2307 }
2308 return;
95da310e 2309}
1da177e4 2310
95da310e 2311static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2312{
95da310e 2313 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2314 struct ftdi_private *priv = usb_get_serial_port_data(port);
2315 unsigned char buf[2];
2316 int ret;
2317
441b62c1 2318 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2319 switch (priv->chip_type) {
2320 case SIO:
2321 /* Request the status from the device */
464cbb24
AC		 2322 ret = usb_control_msg(port->serial->dev,
2323 usb_rcvctrlpipe(port->serial->dev, 0),
2324 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2325 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2326 0, 0,
2327 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2328 if (ret < 0)
464cbb24 2329 return ret;
1da177e4
LT		 2330 break;
2331 case FT8U232AM:
2332 case FT232BM:
2333 case FT2232C:
ed6e5282 2334 case FT232RL:
464cbb24
AC		 2335 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2336 value) - in the same format as the data returned from the in
2337 point */
2338 ret = usb_control_msg(port->serial->dev,
2339 usb_rcvctrlpipe(port->serial->dev, 0),
2340 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2341 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2342 0, priv->interface,
2343 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2344 if (ret < 0)
464cbb24 2345 return ret;
1da177e4
LT		 2346 break;
2347 default:
2348 return -EFAULT;
1da177e4 2349 }
5c09d144 2350
1da177e4
LT		 2351 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2352 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2353 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2354 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2355 priv->last_dtr_rts;
1da177e4
LT		 2356}
2357
464cbb24 2358static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2359 unsigned int set, unsigned int clear)
1da177e4 2360{
95da310e 2361 struct usb_serial_port *port = tty->driver_data;
441b62c1 2362 dbg("%s TIOCMSET", __func__);
74ede0ff 2363 return update_mctrl(port, set, clear);
1da177e4
LT		 2364}
2365
2366
464cbb24
AC		 2367static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2368 unsigned int cmd, unsigned long arg)
1da177e4 2369{
95da310e 2370 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2371 struct ftdi_private *priv = usb_get_serial_port_data(port);
2372
441b62c1 2373 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2374
2375 /* Based on code from acm.c and others */
2376 switch (cmd) {
2377
1da177e4 2378 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2379 return get_serial_info(port,
2380 (struct serial_struct __user *) arg);
1da177e4
LT		 2381
2382 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2383 return set_serial_info(tty, port,
2384 (struct serial_struct __user *) arg);
1da177e4
LT		 2385
2386 /*
2387 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2388 * - mask passed in arg for lines of interest
2389 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2390 * Caller should use TIOCGICOUNT to see which one it was.
2391 *
2392 * This code is borrowed from linux/drivers/char/serial.c
2393 */
2394 case TIOCMIWAIT:
2395 while (priv != NULL) {
2396 interruptible_sleep_on(&priv->delta_msr_wait);
2397 /* see if a signal did it */
2398 if (signal_pending(current))
2399 return -ERESTARTSYS;
2400 else {
2401 char diff = priv->diff_status;
2402
464cbb24 2403 if (diff == 0)
1da177e4 2404 return -EIO; /* no change => error */
1da177e4
LT		 2405
2406 /* Consume all events */
2407 priv->diff_status = 0;
2408
464cbb24
AC		 2409 /* Return 0 if caller wanted to know about
2410 these bits */
2411 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2412 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2413 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2414 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2415 return 0;
2416 }
2417 /*
464cbb24
AC		 2418 * Otherwise caller can't care less about what
2419 * happened,and so we continue to wait for more
2420 * events.
1da177e4
LT		 2421 */
2422 }
2423 }
95da310e 2424 return 0;
1da177e4
LT		 2425 default:
2426 break;
1da177e4 2427 }
464cbb24
AC		 2428 /* This is not necessarily an error - turns out the higher layers
2429 * will do some ioctls themselves (see comment above)
1da177e4 2430 */
441b62c1 2431 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2432 return -ENOIOCTLCMD;
2433}
1da177e4 2434
95da310e 2435static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2436{
95da310e 2437 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2438 struct ftdi_private *priv = usb_get_serial_port_data(port);
2439 unsigned long flags;
2440
441b62c1 2441 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2442
2443 spin_lock_irqsave(&priv->rx_lock, flags);
2444 priv->rx_flags |= THROTTLED;
2445 spin_unlock_irqrestore(&priv->rx_lock, flags);
2446}
2447
2448
95da310e 2449static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2450{
95da310e 2451 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2452 struct ftdi_private *priv = usb_get_serial_port_data(port);
2453 int actually_throttled;
2454 unsigned long flags;
2455
441b62c1 2456 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2457
2458 spin_lock_irqsave(&priv->rx_lock, flags);
2459 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2460 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2461 spin_unlock_irqrestore(&priv->rx_lock, flags);
2462
2463 if (actually_throttled)
c4028958 2464 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2465}
2466
464cbb24 2467static int __init ftdi_init(void)
1da177e4
LT		 2468{
2469 int retval;
2470
441b62c1 2471 dbg("%s", __func__);
fdcb0a0f
IA		 2472 if (vendor > 0 && product > 0) {
2473 /* Add user specified VID/PID to reserved element of table. */
2474 int i;
2475 for (i = 0; id_table_combined[i].idVendor; i++)
2476 ;
2477 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2478 id_table_combined[i].idVendor = vendor;
2479 id_table_combined[i].idProduct = product;
2480 }
8f977e42 2481 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2482 if (retval)
8f977e42 2483 goto failed_sio_register;
1da177e4 2484 retval = usb_register(&ftdi_driver);
5c09d144 2485 if (retval)
1da177e4
LT		 2486 goto failed_usb_register;
2487
c197a8db
GKH		 2488 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2489 DRIVER_DESC "\n");
1da177e4
LT		 2490 return 0;
2491failed_usb_register:
8f977e42
IA		 2492 usb_serial_deregister(&ftdi_sio_device);
2493failed_sio_register:
1da177e4
LT		 2494 return retval;
2495}
2496
2497
464cbb24 2498static void __exit ftdi_exit(void)
1da177e4
LT		 2499{
2500
441b62c1 2501 dbg("%s", __func__);
1da177e4 2502
464cbb24
AC		 2503 usb_deregister(&ftdi_driver);
2504 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2505
2506}
2507
2508
2509module_init(ftdi_init);
2510module_exit(ftdi_exit);
2511
464cbb24
AC		 2512MODULE_AUTHOR(DRIVER_AUTHOR);
2513MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2514MODULE_LICENSE("GPL");
2515
2516module_param(debug, bool, S_IRUGO | S_IWUSR);
2517MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2518module_param(vendor, ushort, 0);
2519MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2520 __MODULE_STRING(FTDI_VID)")");
2521module_param(product, ushort, 0);
68265043 2522MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2523
Clone of davem's net-next-2.6 tree