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musb: add high bandwidth ISO support
[mirror_ubuntu-zesty-kernel.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 },
d46130ab 676 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
fdcb0a0f
IA		 677 { }, /* Optional parameter entry */
678 { } /* Terminating entry */
1da177e4
LT		 679};
680
464cbb24 681MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 682
683static struct usb_driver ftdi_driver = {
684 .name = "ftdi_sio",
685 .probe = usb_serial_probe,
686 .disconnect = usb_serial_disconnect,
687 .id_table = id_table_combined,
5c09d144 688 .no_dynamic_id = 1,
1da177e4
LT		 689};
690
4c4c9432 691static const char *ftdi_chip_name[] = {
1da177e4
LT		 692 [SIO] = "SIO", /* the serial part of FT8U100AX */
693 [FT8U232AM] = "FT8U232AM",
694 [FT232BM] = "FT232BM",
695 [FT2232C] = "FT2232C",
d8b21606 696 [FT232RL] = "FT232RL",
1da177e4
LT		 697};
698
699
700/* Constants for read urb and write urb */
701#define BUFSZ 512
702#define PKTSZ 64
703
704/* rx_flags */
705#define THROTTLED 0x01
706#define ACTUALLY_THROTTLED 0x02
707
1da177e4
LT		 708/* Used for TIOCMIWAIT */
709#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
710#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
711/* End TIOCMIWAIT */
712
bbc5d276
RK		 713#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
714 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 715
716/* function prototypes for a FTDI serial converter */
464cbb24
AC		 717static int ftdi_sio_probe(struct usb_serial *serial,
718 const struct usb_device_id *id);
719static void ftdi_shutdown(struct usb_serial *serial);
720static int ftdi_sio_port_probe(struct usb_serial_port *port);
721static int ftdi_sio_port_remove(struct usb_serial_port *port);
722static int ftdi_open(struct tty_struct *tty,
723 struct usb_serial_port *port, struct file *filp);
335f8514
AC		 724static void ftdi_close(struct usb_serial_port *port);
725static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 726static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
727 const unsigned char *buf, int count);
728static int ftdi_write_room(struct tty_struct *tty);
729static int ftdi_chars_in_buffer(struct tty_struct *tty);
730static void ftdi_write_bulk_callback(struct urb *urb);
731static void ftdi_read_bulk_callback(struct urb *urb);
732static void ftdi_process_read(struct work_struct *work);
733static void ftdi_set_termios(struct tty_struct *tty,
734 struct usb_serial_port *port, struct ktermios *old);
735static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
736static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
737 unsigned int set, unsigned int clear);
738static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
739 unsigned int cmd, unsigned long arg);
740static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
741static void ftdi_throttle(struct tty_struct *tty);
742static void ftdi_unthrottle(struct tty_struct *tty);
743
744static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
745static unsigned short int ftdi_232am_baud_to_divisor(int baud);
746static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
747static __u32 ftdi_232bm_baud_to_divisor(int baud);
1da177e4 748
ea65370d 749static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 750 .driver = {
751 .owner = THIS_MODULE,
269bda1c 752 .name = "ftdi_sio",
18fcac35 753 },
269bda1c 754 .description = "FTDI USB Serial Device",
d9b1b787 755 .usb_driver = &ftdi_driver ,
8f977e42 756 .id_table = id_table_combined,
1da177e4 757 .num_ports = 1,
8f977e42 758 .probe = ftdi_sio_probe,
12bdbe03
JR		 759 .port_probe = ftdi_sio_port_probe,
760 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 761 .open = ftdi_open,
762 .close = ftdi_close,
335f8514 763 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 764 .throttle = ftdi_throttle,
765 .unthrottle = ftdi_unthrottle,
766 .write = ftdi_write,
767 .write_room = ftdi_write_room,
768 .chars_in_buffer = ftdi_chars_in_buffer,
769 .read_bulk_callback = ftdi_read_bulk_callback,
770 .write_bulk_callback = ftdi_write_bulk_callback,
771 .tiocmget = ftdi_tiocmget,
772 .tiocmset = ftdi_tiocmset,
773 .ioctl = ftdi_ioctl,
774 .set_termios = ftdi_set_termios,
775 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 776 .shutdown = ftdi_shutdown,
777};
778
1da177e4
LT		 779
780#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 781#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 782
783/* High and low are for DTR, RTS etc etc */
784#define HIGH 1
785#define LOW 0
786
22465400
IA		 787/* number of outstanding urbs to prevent userspace DoS from happening */
788#define URB_UPPER_LIMIT 42
789
1da177e4
LT		 790/*
791 * ***************************************************************************
fa91d43b 792 * Utility functions
1da177e4
LT		 793 * ***************************************************************************
794 */
795
796static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
797{
798 unsigned short int divisor;
464cbb24
AC		 799 /* divisor shifted 3 bits to the left */
800 int divisor3 = base / 2 / baud;
801 if ((divisor3 & 0x7) == 7)
802 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 803 divisor = divisor3 >> 3;
804 divisor3 &= 0x7;
464cbb24
AC		 805 if (divisor3 == 1)
806 divisor |= 0xc000;
807 else if (divisor3 >= 4)
808 divisor |= 0x4000;
809 else if (divisor3 != 0)
810 divisor |= 0x8000;
811 else if (divisor == 1)
812 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 813 return divisor;
814}
815
816static unsigned short int ftdi_232am_baud_to_divisor(int baud)
817{
464cbb24 818 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 819}
820
821static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
822{
823 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
824 __u32 divisor;
464cbb24
AC		 825 /* divisor shifted 3 bits to the left */
826 int divisor3 = base / 2 / baud;
1da177e4
LT		 827 divisor = divisor3 >> 3;
828 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
829 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 830 if (divisor == 1)
831 divisor = 0;
832 else if (divisor == 0x4001)
833 divisor = 1;
1da177e4
LT		 834 return divisor;
835}
836
837static __u32 ftdi_232bm_baud_to_divisor(int baud)
838{
464cbb24 839 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 840}
841
74ede0ff
IA		 842#define set_mctrl(port, set) update_mctrl((port), (set), 0)
843#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
844
464cbb24
AC		 845static int update_mctrl(struct usb_serial_port *port, unsigned int set,
846 unsigned int clear)
1da177e4
LT		 847{
848 struct ftdi_private *priv = usb_get_serial_port_data(port);
849 char *buf;
74ede0ff 850 unsigned urb_value;
1da177e4 851 int rv;
1da177e4 852
74ede0ff 853 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 854 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 855 return 0; /* no change */
856 }
1da177e4 857
1da177e4 858 buf = kmalloc(1, GFP_NOIO);
9b0f2582 859 if (!buf)
1da177e4 860 return -ENOMEM;
74ede0ff
IA		 861
862 clear &= ~set; /* 'set' takes precedence over 'clear' */
863 urb_value = 0;
864 if (clear & TIOCM_DTR)
865 urb_value |= FTDI_SIO_SET_DTR_LOW;
866 if (clear & TIOCM_RTS)
867 urb_value |= FTDI_SIO_SET_RTS_LOW;
868 if (set & TIOCM_DTR)
869 urb_value |= FTDI_SIO_SET_DTR_HIGH;
870 if (set & TIOCM_RTS)
871 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 872 rv = usb_control_msg(port->serial->dev,
873 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 874 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 875 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 876 urb_value, priv->interface,
1da177e4
LT		 877 buf, 0, WDR_TIMEOUT);
878
879 kfree(buf);
74ede0ff 880 if (rv < 0) {
43b11d33 881 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 882 __func__,
74ede0ff
IA		 883 (set & TIOCM_DTR) ? "HIGH" :
884 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
885 (set & TIOCM_RTS) ? "HIGH" :
886 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
887 } else {
441b62c1 888 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 889 (set & TIOCM_DTR) ? "HIGH" :
890 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
891 (set & TIOCM_RTS) ? "HIGH" :
892 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 893 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 894 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
895 }
1da177e4
LT		 896 return rv;
897}
898
899
464cbb24
AC		 900static __u32 get_ftdi_divisor(struct tty_struct *tty,
901 struct usb_serial_port *port)
1da177e4
LT		 902{ /* get_ftdi_divisor */
903 struct ftdi_private *priv = usb_get_serial_port_data(port);
904 __u32 div_value = 0;
905 int div_okay = 1;
906 int baud;
907
908 /*
464cbb24
AC		 909 * The logic involved in setting the baudrate can be cleanly split into
910 * 3 steps.
1da177e4 911 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 912 * 2. If these are not enough, you can set any speed using alt_speed as
913 * follows:
1da177e4
LT		 914 * - set tty->termios->c_cflag speed to B38400
915 * - set your real speed in tty->alt_speed; it gets ignored when
916 * alt_speed==0, (or)
464cbb24
AC		 917 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
918 * follows:
919 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
920 * this just sets alt_speed to (HI: 57600, VHI: 115200,
921 * SHI: 230400, WARP: 460800)
1da177e4
LT		 922 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
923 * 3. You can also set baud rate by setting custom divisor as follows
924 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 925 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
926 * follows:
1da177e4
LT		 927 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
928 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 929 * ** Step 3 is done courtesy of code borrowed from serial.c
930 * I should really spend some time and separate + move this common
931 * code to serial.c, it is replicated in nearly every serial driver
932 * you see.
1da177e4
LT		 933 */
934
464cbb24
AC		 935 /* 1. Get the baud rate from the tty settings, this observes
936 alt_speed hack */
1da177e4 937
95da310e 938 baud = tty_get_baud_rate(tty);
441b62c1 939 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 940
464cbb24
AC		 941 /* 2. Observe async-compatible custom_divisor hack, update baudrate
942 if needed */
1da177e4
LT		 943
944 if (baud == 38400 &&
945 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
946 (priv->custom_divisor)) {
947 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 948 dbg("%s - custom divisor %d sets baud rate to %d",
949 __func__, priv->custom_divisor, baud);
1da177e4
LT		 950 }
951
952 /* 3. Convert baudrate to device-specific divisor */
953
464cbb24
AC		 954 if (!baud)
955 baud = 9600;
956 switch (priv->chip_type) {
1da177e4 957 case SIO: /* SIO chip */
464cbb24 958 switch (baud) {
1da177e4
LT		 959 case 300: div_value = ftdi_sio_b300; break;
960 case 600: div_value = ftdi_sio_b600; break;
961 case 1200: div_value = ftdi_sio_b1200; break;
962 case 2400: div_value = ftdi_sio_b2400; break;
963 case 4800: div_value = ftdi_sio_b4800; break;
964 case 9600: div_value = ftdi_sio_b9600; break;
965 case 19200: div_value = ftdi_sio_b19200; break;
966 case 38400: div_value = ftdi_sio_b38400; break;
967 case 57600: div_value = ftdi_sio_b57600; break;
968 case 115200: div_value = ftdi_sio_b115200; break;
969 } /* baud */
970 if (div_value == 0) {
464cbb24
AC		 971 dbg("%s - Baudrate (%d) requested is not supported",
972 __func__, baud);
1da177e4 973 div_value = ftdi_sio_b9600;
bd5e47cc 974 baud = 9600;
1da177e4
LT		 975 div_okay = 0;
976 }
977 break;
978 case FT8U232AM: /* 8U232AM chip */
979 if (baud <= 3000000) {
980 div_value = ftdi_232am_baud_to_divisor(baud);
981 } else {
464cbb24 982 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 983 baud = 9600;
1da177e4
LT		 984 div_value = ftdi_232am_baud_to_divisor(9600);
985 div_okay = 0;
986 }
987 break;
988 case FT232BM: /* FT232BM chip */
989 case FT2232C: /* FT2232C chip */
3b009c63 990 case FT232RL:
1da177e4
LT		 991 if (baud <= 3000000) {
992 div_value = ftdi_232bm_baud_to_divisor(baud);
993 } else {
464cbb24 994 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 995 div_value = ftdi_232bm_baud_to_divisor(9600);
996 div_okay = 0;
669a6db1 997 baud = 9600;
1da177e4
LT		 998 }
999 break;
1000 } /* priv->chip_type */
1001
1002 if (div_okay) {
1003 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1004 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1005 ftdi_chip_name[priv->chip_type]);
1006 }
1007
95da310e 1008 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1009 return div_value;
1da177e4
LT		 1010}
1011
95da310e
AC		 1012static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1013{
1014 struct ftdi_private *priv = usb_get_serial_port_data(port);
1015 char *buf;
464cbb24 1016 __u16 urb_value;
95da310e
AC		 1017 __u16 urb_index;
1018 __u32 urb_index_value;
1019 int rv;
1020
1021 buf = kmalloc(1, GFP_NOIO);
1022 if (!buf)
1023 return -ENOMEM;
1024
1025 urb_index_value = get_ftdi_divisor(tty, port);
1026 urb_value = (__u16)urb_index_value;
1027 urb_index = (__u16)(urb_index_value >> 16);
1028 if (priv->interface) { /* FT2232C */
1029 urb_index = (__u16)((urb_index << 8) | priv->interface);
1030 }
1031
1032 rv = usb_control_msg(port->serial->dev,
1033 usb_sndctrlpipe(port->serial->dev, 0),
1034 FTDI_SIO_SET_BAUDRATE_REQUEST,
1035 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1036 urb_value, urb_index,
1037 buf, 0, WDR_SHORT_TIMEOUT);
1038
1039 kfree(buf);
1040 return rv;
1041}
1042
557aaa7f
AC		 1043static int write_latency_timer(struct usb_serial_port *port)
1044{
1045 struct ftdi_private *priv = usb_get_serial_port_data(port);
1046 struct usb_device *udev = port->serial->dev;
1047 char buf[1];
1048 int rv = 0;
1049 int l = priv->latency;
1050
1051 if (priv->flags & ASYNC_LOW_LATENCY)
1052 l = 1;
1053
1054 dbg("%s: setting latency timer = %i", __func__, l);
1055
1056 rv = usb_control_msg(udev,
1057 usb_sndctrlpipe(udev, 0),
1058 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1059 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1060 l, priv->interface,
1061 buf, 0, WDR_TIMEOUT);
95da310e 1062
557aaa7f
AC		 1063 if (rv < 0)
1064 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1065 return rv;
1066}
1067
1068static int read_latency_timer(struct usb_serial_port *port)
1069{
1070 struct ftdi_private *priv = usb_get_serial_port_data(port);
1071 struct usb_device *udev = port->serial->dev;
1072 unsigned short latency = 0;
1073 int rv = 0;
1074
1075
1076 dbg("%s", __func__);
1077
1078 rv = usb_control_msg(udev,
1079 usb_rcvctrlpipe(udev, 0),
1080 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1081 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1082 0, priv->interface,
1083 (char *) &latency, 1, WDR_TIMEOUT);
1084
1085 if (rv < 0) {
1086 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1087 return -EIO;
1088 }
1089 return latency;
1090}
1da177e4 1091
464cbb24
AC		 1092static int get_serial_info(struct usb_serial_port *port,
1093 struct serial_struct __user *retinfo)
1da177e4
LT		 1094{
1095 struct ftdi_private *priv = usb_get_serial_port_data(port);
1096 struct serial_struct tmp;
1097
1098 if (!retinfo)
1099 return -EFAULT;
1100 memset(&tmp, 0, sizeof(tmp));
1101 tmp.flags = priv->flags;
1102 tmp.baud_base = priv->baud_base;
1103 tmp.custom_divisor = priv->custom_divisor;
1104 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1105 return -EFAULT;
1106 return 0;
1107} /* get_serial_info */
1108
1109
95da310e 1110static int set_serial_info(struct tty_struct *tty,
464cbb24 1111 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1112{ /* set_serial_info */
1113 struct ftdi_private *priv = usb_get_serial_port_data(port);
1114 struct serial_struct new_serial;
1115 struct ftdi_private old_priv;
1116
1117 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1118 return -EFAULT;
6b447f04
AC		 1119
1120 lock_kernel();
464cbb24 1121 old_priv = *priv;
1da177e4
LT		 1122
1123 /* Do error checking and permission checking */
1124
1125 if (!capable(CAP_SYS_ADMIN)) {
1126 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1127 (priv->flags & ~ASYNC_USR_MASK))) {
1128 unlock_kernel();
1da177e4 1129 return -EPERM;
64905b48 1130 }
1da177e4
LT		 1131 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1132 (new_serial.flags & ASYNC_USR_MASK));
1133 priv->custom_divisor = new_serial.custom_divisor;
1134 goto check_and_exit;
1135 }
1136
1137 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1138 (new_serial.baud_base < 9600)) {
1139 unlock_kernel();
1da177e4 1140 return -EINVAL;
6b447f04 1141 }
1da177e4
LT		 1142
1143 /* Make the changes - these are privileged changes! */
1144
1145 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1146 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1147 priv->custom_divisor = new_serial.custom_divisor;
1148
95da310e 1149 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
557aaa7f 1150 write_latency_timer(port);
1da177e4
LT		 1151
1152check_and_exit:
1153 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1154 (priv->flags & ASYNC_SPD_MASK)) {
1155 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1156 tty->alt_speed = 57600;
1da177e4 1157 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1158 tty->alt_speed = 115200;
1da177e4 1159 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1160 tty->alt_speed = 230400;
1da177e4 1161 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1162 tty->alt_speed = 460800;
1da177e4 1163 else
95da310e 1164 tty->alt_speed = 0;
1da177e4
LT		 1165 }
1166 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1167 (priv->flags & ASYNC_SPD_MASK)) ||
1168 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1169 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1170 unlock_kernel();
95da310e 1171 change_speed(tty, port);
1da177e4 1172 }
6b447f04
AC		 1173 else
1174 unlock_kernel();
95da310e 1175 return 0;
1da177e4
LT		 1176
1177} /* set_serial_info */
1178
1179
8f977e42
IA		 1180/* Determine type of FTDI chip based on USB config and descriptor. */
1181static void ftdi_determine_type(struct usb_serial_port *port)
1182{
1183 struct ftdi_private *priv = usb_get_serial_port_data(port);
1184 struct usb_serial *serial = port->serial;
1185 struct usb_device *udev = serial->dev;
1186 unsigned version;
1187 unsigned interfaces;
1188
1189 /* Assume it is not the original SIO device for now. */
f5e09b7c 1190 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1191 priv->write_offset = 0;
1192
1193 version = le16_to_cpu(udev->descriptor.bcdDevice);
1194 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1195 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1196 version, interfaces);
1197 if (interfaces > 1) {
1198 int inter;
1199
1200 /* Multiple interfaces. Assume FT2232C. */
1201 priv->chip_type = FT2232C;
1202 /* Determine interface code. */
1203 inter = serial->interface->altsetting->desc.bInterfaceNumber;
464cbb24 1204 if (inter == 0)
8f977e42 1205 priv->interface = PIT_SIOA;
464cbb24 1206 else
8f977e42 1207 priv->interface = PIT_SIOB;
8f977e42
IA		 1208 /* BM-type devices have a bug where bcdDevice gets set
1209 * to 0x200 when iSerialNumber is 0. */
1210 if (version < 0x500) {
1211 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1212 __func__);
8f977e42
IA		 1213 }
1214 } else if (version < 0x200) {
1215 /* Old device. Assume its the original SIO. */
1216 priv->chip_type = SIO;
1217 priv->baud_base = 12000000 / 16;
1218 priv->write_offset = 1;
1219 } else if (version < 0x400) {
1220 /* Assume its an FT8U232AM (or FT8U245AM) */
1221 /* (It might be a BM because of the iSerialNumber bug,
1222 * but it will still work as an AM device.) */
1223 priv->chip_type = FT8U232AM;
3b009c63 1224 } else if (version < 0x600) {
8f977e42
IA		 1225 /* Assume its an FT232BM (or FT245BM) */
1226 priv->chip_type = FT232BM;
3b009c63
DB		 1227 } else {
1228 /* Assume its an FT232R */
1229 priv->chip_type = FT232RL;
8f977e42 1230 }
c197a8db 1231 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1232}
1233
1234
1da177e4
LT		 1235/*
1236 * ***************************************************************************
1237 * Sysfs Attribute
1238 * ***************************************************************************
1239 */
1240
464cbb24
AC		 1241static ssize_t show_latency_timer(struct device *dev,
1242 struct device_attribute *attr, char *buf)
1da177e4
LT		 1243{
1244 struct usb_serial_port *port = to_usb_serial_port(dev);
1245 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1246 if (priv->flags & ASYNC_LOW_LATENCY)
1247 return sprintf(buf, "1\n");
1248 else
1249 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1250}
1251
557aaa7f 1252
1da177e4 1253/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1254static ssize_t store_latency_timer(struct device *dev,
1255 struct device_attribute *attr, const char *valbuf,
1256 size_t count)
1da177e4
LT		 1257{
1258 struct usb_serial_port *port = to_usb_serial_port(dev);
1259 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4
LT		 1260 int v = simple_strtoul(valbuf, NULL, 10);
1261 int rv = 0;
5c09d144 1262
557aaa7f
AC		 1263 priv->latency = v;
1264 rv = write_latency_timer(port);
1265 if (rv < 0)
1da177e4 1266 return -EIO;
1da177e4
LT		 1267 return count;
1268}
1269
1270/* Write an event character directly to the FTDI register. The ASCII
1271 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1272static ssize_t store_event_char(struct device *dev,
1273 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1274{
1275 struct usb_serial_port *port = to_usb_serial_port(dev);
1276 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1277 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1278 char buf[1];
1279 int v = simple_strtoul(valbuf, NULL, 10);
1280 int rv = 0;
5c09d144 1281
441b62c1 1282 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1283
1da177e4
LT		 1284 rv = usb_control_msg(udev,
1285 usb_sndctrlpipe(udev, 0),
1286 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1287 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1288 v, priv->interface,
1da177e4 1289 buf, 0, WDR_TIMEOUT);
5c09d144 1290
1da177e4
LT		 1291 if (rv < 0) {
1292 dbg("Unable to write event character: %i", rv);
1293 return -EIO;
1294 }
5c09d144 1295
1da177e4
LT		 1296 return count;
1297}
1298
464cbb24
AC		 1299static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1300 store_latency_timer);
1da177e4
LT		 1301static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1302
12bdbe03 1303static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1304{
12bdbe03 1305 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1306 int retval = 0;
1da177e4 1307
464cbb24 1308 dbg("%s", __func__);
13f4db9e 1309
1da177e4
LT		 1310 /* XXX I've no idea if the original SIO supports the event_char
1311 * sysfs parameter, so I'm playing it safe. */
1312 if (priv->chip_type != SIO) {
1313 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1314 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1315 if ((!retval) &&
97cd49eb
SM		 1316 (priv->chip_type == FT232BM ||
1317 priv->chip_type == FT2232C ||
1318 priv->chip_type == FT232RL)) {
12bdbe03 1319 retval = device_create_file(&port->dev,
13f4db9e 1320 &dev_attr_latency_timer);
1da177e4
LT		 1321 }
1322 }
13f4db9e 1323 return retval;
1da177e4
LT		 1324}
1325
12bdbe03 1326static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1327{
12bdbe03 1328 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1329
464cbb24 1330 dbg("%s", __func__);
1da177e4 1331
1da177e4
LT		 1332 /* XXX see create_sysfs_attrs */
1333 if (priv->chip_type != SIO) {
12bdbe03 1334 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1335 if (priv->chip_type == FT232BM ||
1336 priv->chip_type == FT2232C ||
1337 priv->chip_type == FT232RL) {
12bdbe03 1338 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1339 }
1340 }
5c09d144 1341
1da177e4
LT		 1342}
1343
1344/*
1345 * ***************************************************************************
1346 * FTDI driver specific functions
1347 * ***************************************************************************
1348 */
1349
8f977e42 1350/* Probe function to check for special devices */
464cbb24
AC		 1351static int ftdi_sio_probe(struct usb_serial *serial,
1352 const struct usb_device_id *id)
8f977e42 1353{
464cbb24
AC		 1354 struct ftdi_sio_quirk *quirk =
1355 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1356
1357 if (quirk && quirk->probe) {
1358 int ret = quirk->probe(serial);
1359 if (ret != 0)
1360 return ret;
1361 }
1362
8f977e42
IA		 1363 usb_set_serial_data(serial, (void *)id->driver_info);
1364
fa91d43b 1365 return 0;
8f977e42
IA		 1366}
1367
12bdbe03 1368static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1369{
1da177e4 1370 struct ftdi_private *priv;
0ffbbe25
ON		 1371 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1372
13f4db9e 1373
464cbb24 1374 dbg("%s", __func__);
1da177e4 1375
80b6ca48 1376 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1377 if (!priv) {
194343d9 1378 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1379 sizeof(struct ftdi_private));
1da177e4
LT		 1380 return -ENOMEM;
1381 }
1da177e4 1382
c45d6320 1383 kref_init(&priv->kref);
1da177e4 1384 spin_lock_init(&priv->rx_lock);
22465400 1385 spin_lock_init(&priv->tx_lock);
464cbb24 1386 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1387 /* This will push the characters through immediately rather
1388 than queue a task to deliver them */
1389 priv->flags = ASYNC_LOW_LATENCY;
1390
0ffbbe25
ON		 1391 if (quirk && quirk->port_probe)
1392 quirk->port_probe(priv);
1393
1da177e4 1394 /* Increase the size of read buffers */
1bc3c9e1 1395 kfree(port->bulk_in_buffer);
464cbb24 1396 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1397 if (!port->bulk_in_buffer) {
464cbb24 1398 kfree(priv);
1da177e4
LT		 1399 return -ENOMEM;
1400 }
1401 if (port->read_urb) {
1402 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1403 port->read_urb->transfer_buffer_length = BUFSZ;
1404 }
1405
c4028958
DH		 1406 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1407 priv->port = port;
76854cea 1408
1da177e4
LT		 1409 /* Free port's existing write urb and transfer buffer. */
1410 if (port->write_urb) {
464cbb24 1411 usb_free_urb(port->write_urb);
1da177e4
LT		 1412 port->write_urb = NULL;
1413 }
1bc3c9e1
JJ		 1414 kfree(port->bulk_out_buffer);
1415 port->bulk_out_buffer = NULL;
1da177e4 1416
12bdbe03 1417 usb_set_serial_port_data(port, priv);
1da177e4 1418
464cbb24 1419 ftdi_determine_type(port);
557aaa7f 1420 read_latency_timer(port);
12bdbe03
JR		 1421 create_sysfs_attrs(port);
1422 return 0;
1423}
1da177e4 1424
8f977e42
IA		 1425/* Setup for the USB-UIRT device, which requires hardwired
1426 * baudrate (38400 gets mapped to 312500) */
1da177e4 1427/* Called from usbserial:serial_probe */
464cbb24 1428static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1429{
464cbb24 1430 dbg("%s", __func__);
1da177e4 1431
1da177e4
LT		 1432 priv->flags |= ASYNC_SPD_CUST;
1433 priv->custom_divisor = 77;
669a6db1 1434 priv->force_baud = 38400;
8f977e42 1435} /* ftdi_USB_UIRT_setup */
1da177e4 1436
8f977e42
IA		 1437/* Setup for the HE-TIRA1 device, which requires hardwired
1438 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1439
1440static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1441{
464cbb24 1442 dbg("%s", __func__);
1da177e4 1443
1da177e4
LT		 1444 priv->flags |= ASYNC_SPD_CUST;
1445 priv->custom_divisor = 240;
669a6db1 1446 priv->force_baud = 38400;
1da177e4 1447 priv->force_rtscts = 1;
8f977e42 1448} /* ftdi_HE_TIRA1_setup */
1da177e4 1449
fa91d43b 1450/*
20734345
HW		 1451 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1452 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1453 * userspace using openocd.
fa91d43b 1454 */
20734345 1455static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1456{
1457 struct usb_device *udev = serial->dev;
1458 struct usb_interface *interface = serial->interface;
1459
464cbb24 1460 dbg("%s", __func__);
fa91d43b
TL		 1461
1462 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1463 dev_info(&udev->dev,
1464 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1465 return -ENODEV;
1466 }
1467
1468 return 0;
1469}
1da177e4 1470
546d7eec
KV		 1471/*
1472 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1473 * We have to correct it if we want to read from it.
1474 */
1475static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1476{
1477 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1478 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1479
1480 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1481 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1482 dev_info(&serial->dev->dev,
1483 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1484 }
1485
1486 return 0;
1487}
1488
5c09d144 1489/* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1da177e4
LT		 1490 * it is called when the usb device is disconnected
1491 *
1492 * usbserial:usb_serial_disconnect
1493 * calls __serial_close for each open of the port
1494 * shutdown is called then (ie ftdi_shutdown)
1495 */
464cbb24 1496static void ftdi_shutdown(struct usb_serial *serial)
12bdbe03 1497{
441b62c1 1498 dbg("%s", __func__);
12bdbe03 1499}
5c09d144 1500
c45d6320
AS		 1501static void ftdi_sio_priv_release(struct kref *k)
1502{
1503 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1504
1505 kfree(priv);
1506}
1507
12bdbe03
JR		 1508static int ftdi_sio_port_remove(struct usb_serial_port *port)
1509{
1da177e4
LT		 1510 struct ftdi_private *priv = usb_get_serial_port_data(port);
1511
441b62c1 1512 dbg("%s", __func__);
1da177e4 1513
12bdbe03 1514 remove_sysfs_attrs(port);
5c09d144 1515
80193195 1516 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1517
12bdbe03
JR		 1518 return 0;
1519}
1da177e4 1520
95da310e
AC		 1521static int ftdi_open(struct tty_struct *tty,
1522 struct usb_serial_port *port, struct file *filp)
1da177e4 1523{ /* ftdi_open */
1da177e4
LT		 1524 struct usb_device *dev = port->serial->dev;
1525 struct ftdi_private *priv = usb_get_serial_port_data(port);
1526 unsigned long flags;
5c09d144 1527
1da177e4
LT		 1528 int result = 0;
1529 char buf[1]; /* Needed for the usb_control_msg I think */
1530
441b62c1 1531 dbg("%s", __func__);
1da177e4 1532
22465400
IA		 1533 spin_lock_irqsave(&priv->tx_lock, flags);
1534 priv->tx_bytes = 0;
1535 spin_unlock_irqrestore(&priv->tx_lock, flags);
1536 spin_lock_irqsave(&priv->rx_lock, flags);
1537 priv->rx_bytes = 0;
1538 spin_unlock_irqrestore(&priv->rx_lock, flags);
1539
95da310e
AC		 1540 if (tty)
1541 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4 1542
557aaa7f
AC		 1543 write_latency_timer(port);
1544
1da177e4
LT		 1545 /* No error checking for this (will get errors later anyway) */
1546 /* See ftdi_sio.h for description of what is reset */
1547 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1548 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1549 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1550 priv->interface, buf, 0, WDR_TIMEOUT);
1551
1552 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1553 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1554 This is same behaviour as serial.c/rs_open() - Kuba */
1555
1556 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1557 if (tty)
1558 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1559
1da177e4
LT		 1560 /* Not throttled */
1561 spin_lock_irqsave(&priv->rx_lock, flags);
1562 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1563 spin_unlock_irqrestore(&priv->rx_lock, flags);
1564
1565 /* Start reading from the device */
76854cea 1566 priv->rx_processed = 0;
1da177e4 1567 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1568 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1569 port->read_urb->transfer_buffer,
1570 port->read_urb->transfer_buffer_length,
1571 ftdi_read_bulk_callback, port);
1da177e4
LT		 1572 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1573 if (result)
194343d9
GKH		 1574 dev_err(&port->dev,
1575 "%s - failed submitting read urb, error %d\n",
1576 __func__, result);
c45d6320
AS		 1577 else
1578 kref_get(&priv->kref);
1da177e4
LT		 1579
1580 return result;
1581} /* ftdi_open */
1582
1583
335f8514
AC		 1584static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1585{
1586 struct ftdi_private *priv = usb_get_serial_port_data(port);
1587 char buf[1];
1588
1589 mutex_lock(&port->serial->disc_mutex);
1590 if (!port->serial->disconnected) {
1591 /* Disable flow control */
1592 if (!on && usb_control_msg(port->serial->dev,
1593 usb_sndctrlpipe(port->serial->dev, 0),
1594 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1595 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1596 0, priv->interface, buf, 0,
1597 WDR_TIMEOUT) < 0) {
1598 dev_err(&port->dev, "error from flowcontrol urb\n");
1599 }
1600 /* drop RTS and DTR */
1601 if (on)
1602 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1603 else
1604 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1605 }
1606 mutex_unlock(&port->serial->disc_mutex);
1607}
1da177e4 1608
5c09d144 1609/*
1da177e4
LT		 1610 * usbserial:__serial_close only calls ftdi_close if the point is open
1611 *
1612 * This only gets called when it is the last close
5c09d144
DB		 1613 *
1614 *
1da177e4
LT		 1615 */
1616
335f8514 1617static void ftdi_close(struct usb_serial_port *port)
1da177e4 1618{ /* ftdi_close */
1da177e4 1619 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1620
441b62c1 1621 dbg("%s", __func__);
1da177e4 1622
76854cea
IA		 1623
1624 /* cancel any scheduled reading */
c45d6320 1625 cancel_delayed_work_sync(&priv->rx_work);
5c09d144 1626
1da177e4 1627 /* shutdown our bulk read */
794c944e 1628 usb_kill_urb(port->read_urb);
c45d6320 1629 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1630} /* ftdi_close */
1631
1632
5c09d144 1633
1da177e4
LT		 1634/* The SIO requires the first byte to have:
1635 * B0 1
1636 * B1 0
1637 * B2..7 length of message excluding byte 0
1638 *
1639 * The new devices do not require this byte
1640 */
95da310e 1641static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1642 const unsigned char *buf, int count)
1643{ /* ftdi_write */
1644 struct ftdi_private *priv = usb_get_serial_port_data(port);
1645 struct urb *urb;
1646 unsigned char *buffer;
1647 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1648 int status;
1649 int transfer_size;
22465400 1650 unsigned long flags;
1da177e4 1651
441b62c1 1652 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1653
1654 if (count == 0) {
1655 dbg("write request of 0 bytes");
1656 return 0;
1657 }
22465400
IA		 1658 spin_lock_irqsave(&priv->tx_lock, flags);
1659 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1660 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1661 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1662 return 0;
1663 }
62127a58 1664 priv->tx_outstanding_urbs++;
22465400 1665 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1666
1da177e4 1667 data_offset = priv->write_offset;
464cbb24 1668 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1669
1670 /* Determine total transfer size */
1671 transfer_size = count;
1672 if (data_offset > 0) {
1673 /* Original sio needs control bytes too... */
1674 transfer_size += (data_offset *
1675 ((count + (PKTSZ - 1 - data_offset)) /
1676 (PKTSZ - data_offset)));
1677 }
1678
464cbb24 1679 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1680 if (!buffer) {
194343d9
GKH		 1681 dev_err(&port->dev,
1682 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1683 count = -ENOMEM;
1684 goto error_no_buffer;
1da177e4
LT		 1685 }
1686
1687 urb = usb_alloc_urb(0, GFP_ATOMIC);
1688 if (!urb) {
194343d9 1689 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1690 count = -ENOMEM;
1691 goto error_no_urb;
1da177e4
LT		 1692 }
1693
1694 /* Copy data */
1695 if (data_offset > 0) {
464cbb24
AC		 1696 /* Original sio requires control byte at start of
1697 each packet. */
1da177e4
LT		 1698 int user_pktsz = PKTSZ - data_offset;
1699 int todo = count;
1700 unsigned char *first_byte = buffer;
1701 const unsigned char *current_position = buf;
1702
1703 while (todo > 0) {
464cbb24 1704 if (user_pktsz > todo)
1da177e4 1705 user_pktsz = todo;
1da177e4 1706 /* Write the control byte at the front of the packet*/
5c09d144 1707 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1708 /* Copy data for packet */
464cbb24 1709 memcpy(first_byte + data_offset,
1da177e4
LT		 1710 current_position, user_pktsz);
1711 first_byte += user_pktsz + data_offset;
1712 current_position += user_pktsz;
1713 todo -= user_pktsz;
1714 }
1715 } else {
1716 /* No control byte required. */
1717 /* Copy in the data to send */
464cbb24 1718 memcpy(buffer, buf, count);
1da177e4
LT		 1719 }
1720
464cbb24
AC		 1721 usb_serial_debug_data(debug, &port->dev, __func__,
1722 transfer_size, buffer);
1da177e4
LT		 1723
1724 /* fill the buffer and send it */
5c09d144 1725 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1726 usb_sndbulkpipe(port->serial->dev,
1727 port->bulk_out_endpointAddress),
1728 buffer, transfer_size,
1729 ftdi_write_bulk_callback, port);
1da177e4
LT		 1730
1731 status = usb_submit_urb(urb, GFP_ATOMIC);
1732 if (status) {
194343d9
GKH		 1733 dev_err(&port->dev,
1734 "%s - failed submitting write urb, error %d\n",
1735 __func__, status);
1da177e4 1736 count = status;
62127a58 1737 goto error;
22465400
IA		 1738 } else {
1739 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1740 priv->tx_outstanding_bytes += count;
1741 priv->tx_bytes += count;
1742 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1743 }
1744
1745 /* we are done with this urb, so let the host driver
1746 * really free it when it is finished with it */
62127a58 1747 usb_free_urb(urb);
1da177e4 1748
441b62c1 1749 dbg("%s write returning: %d", __func__, count);
1da177e4 1750 return count;
62127a58
ON		 1751error:
1752 usb_free_urb(urb);
1753error_no_urb:
464cbb24 1754 kfree(buffer);
62127a58
ON		 1755error_no_buffer:
1756 spin_lock_irqsave(&priv->tx_lock, flags);
1757 priv->tx_outstanding_urbs--;
1758 spin_unlock_irqrestore(&priv->tx_lock, flags);
1759 return count;
1da177e4
LT		 1760} /* ftdi_write */
1761
1762
1763/* This function may get called when the device is closed */
1764
464cbb24 1765static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1766{
22465400 1767 unsigned long flags;
cdc97792 1768 struct usb_serial_port *port = urb->context;
22465400
IA		 1769 struct ftdi_private *priv;
1770 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1771 unsigned long countback;
0fb0aa18 1772 int status = urb->status;
1da177e4
LT		 1773
1774 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1775 kfree(urb->transfer_buffer);
1da177e4 1776
441b62c1 1777 dbg("%s - port %d", __func__, port->number);
5c09d144 1778
0fb0aa18
GKH		 1779 if (status) {
1780 dbg("nonzero write bulk status received: %d", status);
1da177e4
LT		 1781 return;
1782 }
1783
22465400
IA		 1784 priv = usb_get_serial_port_data(port);
1785 if (!priv) {
441b62c1 1786 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1787 return;
1788 }
1789 /* account for transferred data */
1790 countback = urb->actual_length;
1791 data_offset = priv->write_offset;
1792 if (data_offset > 0) {
1793 /* Subtract the control bytes */
dfa5ec79 1794 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
22465400
IA		 1795 }
1796 spin_lock_irqsave(&priv->tx_lock, flags);
1797 --priv->tx_outstanding_urbs;
1798 priv->tx_outstanding_bytes -= countback;
1799 spin_unlock_irqrestore(&priv->tx_lock, flags);
1800
cf2c7481 1801 usb_serial_port_softint(port);
1da177e4
LT		 1802} /* ftdi_write_bulk_callback */
1803
1804
95da310e 1805static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1806{
95da310e 1807 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1808 struct ftdi_private *priv = usb_get_serial_port_data(port);
1809 int room;
1810 unsigned long flags;
1811
441b62c1 1812 dbg("%s - port %d", __func__, port->number);
1da177e4 1813
22465400
IA		 1814 spin_lock_irqsave(&priv->tx_lock, flags);
1815 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1816 /*
1817 * We really can take anything the user throws at us
1818 * but let's pick a nice big number to tell the tty
1819 * layer that we have lots of free space
1820 */
1821 room = 2048;
1822 } else {
1823 room = 0;
1824 }
1825 spin_unlock_irqrestore(&priv->tx_lock, flags);
1826 return room;
95da310e 1827}
1da177e4 1828
95da310e
AC		 1829static int ftdi_chars_in_buffer(struct tty_struct *tty)
1830{
1831 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1832 struct ftdi_private *priv = usb_get_serial_port_data(port);
1833 int buffered;
1834 unsigned long flags;
1835
441b62c1 1836 dbg("%s - port %d", __func__, port->number);
1da177e4 1837
22465400
IA		 1838 spin_lock_irqsave(&priv->tx_lock, flags);
1839 buffered = (int)priv->tx_outstanding_bytes;
1840 spin_unlock_irqrestore(&priv->tx_lock, flags);
1841 if (buffered < 0) {
194343d9
GKH		 1842 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1843 __func__);
22465400
IA		 1844 buffered = 0;
1845 }
1846 return buffered;
95da310e 1847}
1da177e4 1848
95da310e
AC		 1849static void ftdi_read_bulk_callback(struct urb *urb)
1850{
cdc97792 1851 struct usb_serial_port *port = urb->context;
1da177e4
LT		 1852 struct tty_struct *tty;
1853 struct ftdi_private *priv;
22465400
IA		 1854 unsigned long countread;
1855 unsigned long flags;
0fb0aa18 1856 int status = urb->status;
1da177e4
LT		 1857
1858 if (urb->number_of_packets > 0) {
194343d9
GKH		 1859 dev_err(&port->dev, "%s transfer_buffer_length %d "
1860 "actual_length %d number of packets %d\n", __func__,
1861 urb->transfer_buffer_length,
1862 urb->actual_length, urb->number_of_packets);
1863 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1864 urb->transfer_flags);
1da177e4
LT		 1865 }
1866
441b62c1 1867 dbg("%s - port %d", __func__, port->number);
1da177e4 1868
95da310e 1869 if (port->port.count <= 0)
1da177e4
LT		 1870 return;
1871
4a90f09b 1872 tty = tty_port_tty_get(&port->port);
1da177e4 1873 if (!tty) {
464cbb24 1874 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1875 return;
1876 }
1877
1878 priv = usb_get_serial_port_data(port);
1879 if (!priv) {
441b62c1 1880 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1881 goto out;
1da177e4
LT		 1882 }
1883
464cbb24 1884 if (urb != port->read_urb)
194343d9 1885 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1da177e4 1886
0fb0aa18 1887 if (status) {
464cbb24
AC		 1888 /* This will happen at close every time so it is a dbg not an
1889 err */
1890 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
4a90f09b 1891 goto out;
1da177e4
LT		 1892 }
1893
22465400
IA		 1894 /* count data bytes, but not status bytes */
1895 countread = urb->actual_length;
dfa5ec79 1896 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
22465400
IA		 1897 spin_lock_irqsave(&priv->rx_lock, flags);
1898 priv->rx_bytes += countread;
1899 spin_unlock_irqrestore(&priv->rx_lock, flags);
1900
c4028958 1901 ftdi_process_read(&priv->rx_work.work);
4a90f09b
AC		 1902out:
1903 tty_kref_put(tty);
1da177e4
LT		 1904} /* ftdi_read_bulk_callback */
1905
1906
464cbb24 1907static void ftdi_process_read(struct work_struct *work)
1da177e4 1908{ /* ftdi_process_read */
c4028958
DH		 1909 struct ftdi_private *priv =
1910 container_of(work, struct ftdi_private, rx_work.work);
1911 struct usb_serial_port *port = priv->port;
1da177e4
LT		 1912 struct urb *urb;
1913 struct tty_struct *tty;
1da177e4 1914 char error_flag;
5c09d144 1915 unsigned char *data;
1da177e4
LT		 1916
1917 int i;
1918 int result;
1919 int need_flip;
1920 int packet_offset;
76854cea 1921 unsigned long flags;
1da177e4 1922
441b62c1 1923 dbg("%s - port %d", __func__, port->number);
1da177e4 1924
95da310e 1925 if (port->port.count <= 0)
1da177e4
LT		 1926 return;
1927
4a90f09b 1928 tty = tty_port_tty_get(&port->port);
1da177e4 1929 if (!tty) {
464cbb24 1930 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1931 return;
1932 }
1933
1934 priv = usb_get_serial_port_data(port);
1935 if (!priv) {
441b62c1 1936 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1937 goto out;
1da177e4
LT		 1938 }
1939
1940 urb = port->read_urb;
1941 if (!urb) {
441b62c1 1942 dbg("%s - bad read_urb pointer - exiting", __func__);
4a90f09b 1943 goto out;
1da177e4
LT		 1944 }
1945
1946 data = urb->transfer_buffer;
1947
76854cea 1948 if (priv->rx_processed) {
441b62c1 1949 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 1950 priv->rx_processed,
1951 urb->actual_length - priv->rx_processed);
1da177e4 1952 } else {
76854cea 1953 /* The first two bytes of every read packet are status */
464cbb24
AC		 1954 if (urb->actual_length > 2)
1955 usb_serial_debug_data(debug, &port->dev, __func__,
1956 urb->actual_length, data);
1957 else
1958 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 1959 }
1da177e4
LT		 1960
1961
1962 /* TO DO -- check for hung up line and handle appropriately: */
1963 /* send hangup */
1964 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1965 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1966
1967 need_flip = 0;
464cbb24
AC		 1968 for (packet_offset = priv->rx_processed;
1969 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
76854cea
IA		 1970 int length;
1971
464cbb24
AC		 1972 /* Compare new line status to the old one, signal if different/
1973 N.B. packet may be processed more than once, but differences
1974 are only processed once. */
00185a60
JL		 1975 char new_status = data[packet_offset + 0] &
1976 FTDI_STATUS_B0_MASK;
1977 if (new_status != priv->prev_status) {
1978 priv->diff_status |=
1979 new_status ^ priv->prev_status;
1980 wake_up_interruptible(&priv->delta_msr_wait);
1981 priv->prev_status = new_status;
1da177e4
LT		 1982 }
1983
8c209e67 1984 length = min_t(u32, PKTSZ, urb->actual_length-packet_offset)-2;
76854cea 1985 if (length < 0) {
194343d9
GKH		 1986 dev_err(&port->dev, "%s - bad packet length: %d\n",
1987 __func__, length+2);
76854cea
IA		 1988 length = 0;
1989 }
1990
76854cea 1991 if (priv->rx_flags & THROTTLED) {
441b62c1 1992 dbg("%s - throttled", __func__);
76854cea
IA		 1993 break;
1994 }
33f0f88f 1995 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 1996 /* break out & wait for throttling/unthrottling to
1997 happen */
441b62c1 1998 dbg("%s - receive room low", __func__);
76854cea
IA		 1999 break;
2000 }
2001
1da177e4
LT		 2002 /* Handle errors and break */
2003 error_flag = TTY_NORMAL;
464cbb24
AC		 2004 /* Although the device uses a bitmask and hence can have
2005 multiple errors on a packet - the order here sets the
2006 priority the error is returned to the tty layer */
1da177e4 2007
464cbb24 2008 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 2009 error_flag = TTY_OVERRUN;
2010 dbg("OVERRRUN error");
2011 }
464cbb24 2012 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 2013 error_flag = TTY_BREAK;
2014 dbg("BREAK received");
2015 }
464cbb24 2016 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 2017 error_flag = TTY_PARITY;
2018 dbg("PARITY error");
2019 }
464cbb24 2020 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 2021 error_flag = TTY_FRAME;
2022 dbg("FRAMING error");
2023 }
76854cea
IA		 2024 if (length > 0) {
2025 for (i = 2; i < length+2; i++) {
5c09d144 2026 /* Note that the error flag is duplicated for
1da177e4
LT		 2027 every character received since we don't know
2028 which character it applied to */
464cbb24
AC		 2029 tty_insert_flip_char(tty,
2030 data[packet_offset + i], error_flag);
1da177e4
LT		 2031 }
2032 need_flip = 1;
2033 }
2034
2035#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2036 /* if a parity error is detected you get status packets forever
2037 until a character is sent without a parity error.
464cbb24
AC		 2038 This doesn't work well since the application receives a
2039 never ending stream of bad data - even though new data
2040 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 2041 However - this might make sense for framing errors and so on
1da177e4
LT		 2042 so I am leaving the code in for now.
2043 */
2044 else {
464cbb24 2045 if (error_flag != TTY_NORMAL) {
1da177e4 2046 dbg("error_flag is not normal");
464cbb24
AC		 2047 /* In this case it is just status - if that is
2048 an error send a bad character */
2049 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 2050 tty_flip_buffer_push(tty);
1da177e4
LT		 2051 tty_insert_flip_char(tty, 0xff, error_flag);
2052 need_flip = 1;
2053 }
2054 }
2055#endif
2056 } /* "for(packet_offset=0..." */
2057
2058 /* Low latency */
464cbb24 2059 if (need_flip)
1da177e4 2060 tty_flip_buffer_push(tty);
1da177e4 2061
76854cea
IA		 2062 if (packet_offset < urb->actual_length) {
2063 /* not completely processed - record progress */
2064 priv->rx_processed = packet_offset;
2065 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2066 __func__, packet_offset,
76854cea
IA		 2067 urb->actual_length - packet_offset);
2068 /* check if we were throttled while processing */
2069 spin_lock_irqsave(&priv->rx_lock, flags);
2070 if (priv->rx_flags & THROTTLED) {
2071 priv->rx_flags |= ACTUALLY_THROTTLED;
2072 spin_unlock_irqrestore(&priv->rx_lock, flags);
2073 dbg("%s - deferring remainder until unthrottled",
441b62c1 2074 __func__);
a9fec710 2075 goto out;
76854cea
IA		 2076 }
2077 spin_unlock_irqrestore(&priv->rx_lock, flags);
2078 /* if the port is closed stop trying to read */
464cbb24 2079 if (port->port.count > 0)
76854cea
IA		 2080 /* delay processing of remainder */
2081 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2082 else
441b62c1 2083 dbg("%s - port is closed", __func__);
4a90f09b 2084 goto out;
76854cea
IA		 2085 }
2086
2087 /* urb is completely processed */
2088 priv->rx_processed = 0;
2089
1da177e4 2090 /* if the port is closed stop trying to read */
464cbb24 2091 if (port->port.count > 0) {
1da177e4 2092 /* Continue trying to always read */
5c09d144 2093 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2094 usb_rcvbulkpipe(port->serial->dev,
2095 port->bulk_in_endpointAddress),
2096 port->read_urb->transfer_buffer,
2097 port->read_urb->transfer_buffer_length,
2098 ftdi_read_bulk_callback, port);
1da177e4
LT		 2099
2100 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2101 if (result)
194343d9
GKH		 2102 dev_err(&port->dev,
2103 "%s - failed resubmitting read urb, error %d\n",
2104 __func__, result);
1da177e4 2105 }
4a90f09b
AC		 2106out:
2107 tty_kref_put(tty);
1da177e4
LT		 2108} /* ftdi_process_read */
2109
2110
95da310e 2111static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2112{
95da310e 2113 struct usb_serial_port *port = tty->driver_data;
1da177e4 2114 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2115 __u16 urb_value = 0;
1da177e4 2116 char buf[1];
5c09d144 2117
1da177e4
LT		 2118 /* break_state = -1 to turn on break, and 0 to turn off break */
2119 /* see drivers/char/tty_io.c to see it used */
2120 /* last_set_data_urb_value NEVER has the break bit set in it */
2121
464cbb24 2122 if (break_state)
1da177e4 2123 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2124 else
5c09d144 2125 urb_value = priv->last_set_data_urb_value;
5c09d144 2126
464cbb24
AC		 2127 if (usb_control_msg(port->serial->dev,
2128 usb_sndctrlpipe(port->serial->dev, 0),
2129 FTDI_SIO_SET_DATA_REQUEST,
2130 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2131 urb_value , priv->interface,
2132 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2133 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2134 "(state was %d)\n", __func__, break_state);
5c09d144 2135 }
1da177e4 2136
464cbb24
AC		 2137 dbg("%s break state is %d - urb is %d", __func__,
2138 break_state, urb_value);
5c09d144 2139
1da177e4
LT		 2140}
2141
2142
2143/* old_termios contains the original termios settings and tty->termios contains
2144 * the new setting to be used
2145 * WARNING: set_termios calls this with old_termios in kernel space
2146 */
2147
95da310e
AC		 2148static void ftdi_set_termios(struct tty_struct *tty,
2149 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2150{ /* ftdi_termios */
2151 struct usb_device *dev = port->serial->dev;
1da177e4 2152 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2153 struct ktermios *termios = tty->termios;
669a6db1 2154 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2155 __u16 urb_value; /* will hold the new flags */
2156 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2157
464cbb24 2158 /* Added for xon/xoff support */
669a6db1 2159 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2160 unsigned char vstop;
2161 unsigned char vstart;
5c09d144 2162
441b62c1 2163 dbg("%s", __func__);
1da177e4 2164
464cbb24
AC		 2165 /* Force baud rate if this device requires it, unless it is set to
2166 B0. */
669a6db1 2167 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2168 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2169 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2170 priv->force_baud);
1da177e4
LT		 2171 }
2172
2173 /* Force RTS-CTS if this device requires it. */
2174 if (priv->force_rtscts) {
441b62c1 2175 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2176 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2177 }
2178
669a6db1 2179 cflag = termios->c_cflag;
1da177e4 2180
5c09d144
DB		 2181 /* FIXME -For this cut I don't care if the line is really changing or
2182 not - so just do the change regardless - should be able to
1da177e4 2183 compare old_termios and tty->termios */
5c09d144 2184 /* NOTE These routines can get interrupted by
464cbb24
AC		 2185 ftdi_sio_read_bulk_callback - need to examine what this means -
2186 don't see any problems yet */
5c09d144 2187
1da177e4 2188 /* Set number of data bits, parity, stop bits */
5c09d144 2189
669a6db1
AC		 2190 termios->c_cflag &= ~CMSPAR;
2191
1da177e4
LT		 2192 urb_value = 0;
2193 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2194 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2195 urb_value |= (cflag & PARENB ?
2196 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2197 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2198 FTDI_SIO_SET_DATA_PARITY_NONE);
2199 if (cflag & CSIZE) {
2200 switch (cflag & CSIZE) {
2201 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2202 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2203 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2204 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2205 default:
194343d9 2206 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2207 }
2208 }
2209
464cbb24
AC		 2210 /* This is needed by the break command since it uses the same command
2211 - but is or'ed with this value */
1da177e4 2212 priv->last_set_data_urb_value = urb_value;
5c09d144 2213
1da177e4 2214 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2215 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2216 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2217 urb_value , priv->interface,
279e1545 2218 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2219 dev_err(&port->dev, "%s FAILED to set "
2220 "databits/stopbits/parity\n", __func__);
5c09d144 2221 }
1da177e4
LT		 2222
2223 /* Now do the baudrate */
464cbb24 2224 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2225 /* Disable flow control */
2226 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2227 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2228 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2229 0, priv->interface,
1da177e4 2230 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2231 dev_err(&port->dev,
2232 "%s error from disable flowcontrol urb\n",
2233 __func__);
5c09d144 2234 }
1da177e4 2235 /* Drop RTS and DTR */
74ede0ff 2236 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2237 } else {
2238 /* set the baudrate determined before */
464cbb24 2239 if (change_speed(tty, port))
194343d9
GKH		 2240 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2241 __func__);
72a755fc 2242 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2243 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2244 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2245 }
2246
2247 /* Set flow control */
2248 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2249 if (cflag & CRTSCTS) {
441b62c1 2250 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2251 if (usb_control_msg(dev,
1da177e4 2252 usb_sndctrlpipe(dev, 0),
5c09d144 2253 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2254 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2255 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2256 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2257 dev_err(&port->dev,
2258 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2259 }
2260
2261 } else {
1da177e4
LT		 2262 /*
2263 * Xon/Xoff code
2264 *
464cbb24
AC		 2265 * Check the IXOFF status in the iflag component of the
2266 * termios structure. If IXOFF is not set, the pre-xon/xoff
2267 * code is executed.
2268 */
1da177e4 2269 if (iflag & IXOFF) {
464cbb24
AC		 2270 dbg("%s request to enable xonxoff iflag=%04x",
2271 __func__, iflag);
2272 /* Try to enable the XON/XOFF on the ftdi_sio
2273 * Set the vstart and vstop -- could have been done up
2274 * above where a lot of other dereferencing is done but
2275 * that would be very inefficient as vstart and vstop
2276 * are not always needed.
2277 */
669a6db1
AC		 2278 vstart = termios->c_cc[VSTART];
2279 vstop = termios->c_cc[VSTOP];
464cbb24 2280 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2281
2282 if (usb_control_msg(dev,
2283 usb_sndctrlpipe(dev, 0),
2284 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2285 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2286 urb_value , (FTDI_SIO_XON_XOFF_HS
2287 | priv->interface),
2288 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2289 dev_err(&port->dev, "urb failed to set to "
2290 "xon/xoff flow control\n");
1da177e4
LT		 2291 }
2292 } else {
464cbb24
AC		 2293 /* else clause to only run if cflag ! CRTSCTS and iflag
2294 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2295 * stack - not by device */
441b62c1 2296 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2297 if (usb_control_msg(dev,
1da177e4 2298 usb_sndctrlpipe(dev, 0),
5c09d144 2299 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2300 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2301 0, priv->interface,
1da177e4 2302 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2303 dev_err(&port->dev,
2304 "urb failed to clear flow control\n");
5c09d144 2305 }
1da177e4 2306 }
5c09d144 2307
1da177e4
LT		 2308 }
2309 return;
95da310e 2310}
1da177e4 2311
95da310e 2312static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2313{
95da310e 2314 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2315 struct ftdi_private *priv = usb_get_serial_port_data(port);
2316 unsigned char buf[2];
2317 int ret;
2318
441b62c1 2319 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2320 switch (priv->chip_type) {
2321 case SIO:
2322 /* Request the status from the device */
464cbb24
AC		 2323 ret = usb_control_msg(port->serial->dev,
2324 usb_rcvctrlpipe(port->serial->dev, 0),
2325 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2326 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2327 0, 0,
2328 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2329 if (ret < 0)
464cbb24 2330 return ret;
1da177e4
LT		 2331 break;
2332 case FT8U232AM:
2333 case FT232BM:
2334 case FT2232C:
ed6e5282 2335 case FT232RL:
464cbb24
AC		 2336 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2337 value) - in the same format as the data returned from the in
2338 point */
2339 ret = usb_control_msg(port->serial->dev,
2340 usb_rcvctrlpipe(port->serial->dev, 0),
2341 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2342 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2343 0, priv->interface,
2344 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2345 if (ret < 0)
464cbb24 2346 return ret;
1da177e4
LT		 2347 break;
2348 default:
2349 return -EFAULT;
1da177e4 2350 }
5c09d144 2351
1da177e4
LT		 2352 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2353 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2354 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2355 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2356 priv->last_dtr_rts;
1da177e4
LT		 2357}
2358
464cbb24 2359static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2360 unsigned int set, unsigned int clear)
1da177e4 2361{
95da310e 2362 struct usb_serial_port *port = tty->driver_data;
441b62c1 2363 dbg("%s TIOCMSET", __func__);
74ede0ff 2364 return update_mctrl(port, set, clear);
1da177e4
LT		 2365}
2366
2367
464cbb24
AC		 2368static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2369 unsigned int cmd, unsigned long arg)
1da177e4 2370{
95da310e 2371 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2372 struct ftdi_private *priv = usb_get_serial_port_data(port);
2373
441b62c1 2374 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2375
2376 /* Based on code from acm.c and others */
2377 switch (cmd) {
2378
1da177e4 2379 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2380 return get_serial_info(port,
2381 (struct serial_struct __user *) arg);
1da177e4
LT		 2382
2383 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2384 return set_serial_info(tty, port,
2385 (struct serial_struct __user *) arg);
1da177e4
LT		 2386
2387 /*
2388 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2389 * - mask passed in arg for lines of interest
2390 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2391 * Caller should use TIOCGICOUNT to see which one it was.
2392 *
2393 * This code is borrowed from linux/drivers/char/serial.c
2394 */
2395 case TIOCMIWAIT:
2396 while (priv != NULL) {
2397 interruptible_sleep_on(&priv->delta_msr_wait);
2398 /* see if a signal did it */
2399 if (signal_pending(current))
2400 return -ERESTARTSYS;
2401 else {
2402 char diff = priv->diff_status;
2403
464cbb24 2404 if (diff == 0)
1da177e4 2405 return -EIO; /* no change => error */
1da177e4
LT		 2406
2407 /* Consume all events */
2408 priv->diff_status = 0;
2409
464cbb24
AC		 2410 /* Return 0 if caller wanted to know about
2411 these bits */
2412 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2413 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2414 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2415 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2416 return 0;
2417 }
2418 /*
464cbb24
AC		 2419 * Otherwise caller can't care less about what
2420 * happened,and so we continue to wait for more
2421 * events.
1da177e4
LT		 2422 */
2423 }
2424 }
95da310e 2425 return 0;
1da177e4
LT		 2426 default:
2427 break;
1da177e4 2428 }
464cbb24
AC		 2429 /* This is not necessarily an error - turns out the higher layers
2430 * will do some ioctls themselves (see comment above)
1da177e4 2431 */
441b62c1 2432 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2433 return -ENOIOCTLCMD;
2434}
1da177e4 2435
95da310e 2436static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2437{
95da310e 2438 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2439 struct ftdi_private *priv = usb_get_serial_port_data(port);
2440 unsigned long flags;
2441
441b62c1 2442 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2443
2444 spin_lock_irqsave(&priv->rx_lock, flags);
2445 priv->rx_flags |= THROTTLED;
2446 spin_unlock_irqrestore(&priv->rx_lock, flags);
2447}
2448
2449
95da310e 2450static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2451{
95da310e 2452 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2453 struct ftdi_private *priv = usb_get_serial_port_data(port);
2454 int actually_throttled;
2455 unsigned long flags;
2456
441b62c1 2457 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2458
2459 spin_lock_irqsave(&priv->rx_lock, flags);
2460 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2461 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2462 spin_unlock_irqrestore(&priv->rx_lock, flags);
2463
2464 if (actually_throttled)
c4028958 2465 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2466}
2467
464cbb24 2468static int __init ftdi_init(void)
1da177e4
LT		 2469{
2470 int retval;
2471
441b62c1 2472 dbg("%s", __func__);
fdcb0a0f
IA		 2473 if (vendor > 0 && product > 0) {
2474 /* Add user specified VID/PID to reserved element of table. */
2475 int i;
2476 for (i = 0; id_table_combined[i].idVendor; i++)
2477 ;
2478 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2479 id_table_combined[i].idVendor = vendor;
2480 id_table_combined[i].idProduct = product;
2481 }
8f977e42 2482 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2483 if (retval)
8f977e42 2484 goto failed_sio_register;
1da177e4 2485 retval = usb_register(&ftdi_driver);
5c09d144 2486 if (retval)
1da177e4
LT		 2487 goto failed_usb_register;
2488
c197a8db
GKH		 2489 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2490 DRIVER_DESC "\n");
1da177e4
LT		 2491 return 0;
2492failed_usb_register:
8f977e42
IA		 2493 usb_serial_deregister(&ftdi_sio_device);
2494failed_sio_register:
1da177e4
LT		 2495 return retval;
2496}
2497
2498
464cbb24 2499static void __exit ftdi_exit(void)
1da177e4
LT		 2500{
2501
441b62c1 2502 dbg("%s", __func__);
1da177e4 2503
464cbb24
AC		 2504 usb_deregister(&ftdi_driver);
2505 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2506
2507}
2508
2509
2510module_init(ftdi_init);
2511module_exit(ftdi_exit);
2512
464cbb24
AC		 2513MODULE_AUTHOR(DRIVER_AUTHOR);
2514MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2515MODULE_LICENSE("GPL");
2516
2517module_param(debug, bool, S_IRUGO | S_IWUSR);
2518MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2519module_param(vendor, ushort, 0);
2520MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2521 __MODULE_STRING(FTDI_VID)")");
2522module_param(product, ushort, 0);
68265043 2523MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2524
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