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Merge branches 'topic/slob/cleanups', 'topic/slob/fixes', 'topic/slub/core', 'topic...
[linux-block.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
ON		 58struct ftdi_private {
59 ftdi_chip_type_t chip_type;
464cbb24 60 /* type of device, either SIO or FT8U232AM */
0ffbbe25 61 int baud_base; /* baud base clock for divisor setting */
464cbb24
AC		 62 int custom_divisor; /* custom_divisor kludge, this is for
63 baud_base (different from what goes to the
64 chip!) */
0ffbbe25 65 __u16 last_set_data_urb_value ;
464cbb24
AC		 66 /* the last data state set - needed for doing
67 * a break
68 */
69 int write_offset; /* This is the offset in the usb data block to
70 * write the serial data - it varies between
71 * devices
0ffbbe25
ON		 72 */
73 int flags; /* some ASYNC_xxxx flags are supported */
74 unsigned long last_dtr_rts; /* saved modem control outputs */
464cbb24 75 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
0ffbbe25
ON		 76 char prev_status, diff_status; /* Used for TIOCMIWAIT */
77 __u8 rx_flags; /* receive state flags (throttling) */
78 spinlock_t rx_lock; /* spinlock for receive state */
79 struct delayed_work rx_work;
80 struct usb_serial_port *port;
81 int rx_processed;
82 unsigned long rx_bytes;
83
84 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
85
464cbb24
AC		 86 speed_t force_baud; /* if non-zero, force the baud rate to
87 this value */
88 int force_rtscts; /* if non-zero, force RTS-CTS to always
89 be enabled */
0ffbbe25
ON		 90
91 spinlock_t tx_lock; /* spinlock for transmit state */
92 unsigned long tx_bytes;
93 unsigned long tx_outstanding_bytes;
94 unsigned long tx_outstanding_urbs;
95};
96
8f977e42
IA		 97/* struct ftdi_sio_quirk is used by devices requiring special attention. */
98struct ftdi_sio_quirk {
fa91d43b 99 int (*probe)(struct usb_serial *);
464cbb24
AC		 100 /* Special settings for probed ports. */
101 void (*port_probe)(struct ftdi_private *);
8f977e42
IA		 102};
103
464cbb24
AC		 104static int ftdi_jtag_probe(struct usb_serial *serial);
105static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
106static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
107static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 108
20734345
HW		 109static struct ftdi_sio_quirk ftdi_jtag_quirk = {
110 .probe = ftdi_jtag_probe,
fa91d43b
TL		 111};
112
546d7eec
KV		 113static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
114 .probe = ftdi_mtxorb_hack_setup,
115};
116
8f977e42 117static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 118 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 119};
120
121static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 122 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 123};
124
125/*
126 * The 8U232AM has the same API as the sio except for:
127 * - it can support MUCH higher baudrates; up to:
128 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
129 * o 230400 at 12MHz
130 * so .. 8U232AM's baudrate setting codes are different
131 * - it has a two byte status code.
132 * - it returns characters every 16ms (the FTDI does it every 40ms)
133 *
134 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
135 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
136 * combinations in both tables.
8f977e42
IA		 137 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
138 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 139 */
140
141
1da177e4
LT		 142
143static struct usb_device_id id_table_combined [] = {
2011e924
JD		 144 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
145 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
01ba0856 146 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
6e1ab3ed
PM		 147 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
148 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 155 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 156 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 157 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 158 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 159 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 160 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 163 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 164 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
c0f8d561 165 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 166 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 167 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
1da177e4
LT		 168 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
169 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
f2ee6955 170 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
1da177e4
LT		 171 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
180 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 182 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
464cbb24
AC		 189 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
190 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 229 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 235 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 275 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 277 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 279 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 281 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 283 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 285 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 453 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 454 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 455 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 456 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 457 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
504 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
505 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 506 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
507 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
508 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
509 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 510 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
511 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
512 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
513 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 514 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 530 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 531 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 532 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 534 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 535 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 536 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 544 /*
42f8aa94
PS		 545 * Due to many user requests for multiple ELV devices we enable
546 * them by default.
e6ac4a40 547 */
42f8aa94
PS		 548 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 566 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 567 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 568 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
5c09d144
DB		 569 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
570 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
571 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
572 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
573 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 576 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
1da177e4
LT		 577 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
578 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
579 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
580 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 581 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 582 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
c3d36c45 583 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
ef31fec0 584 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 585 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 586 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
587 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
588 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
589 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 590 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 592 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
598 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
599 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 600 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 601 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 602 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
609 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 610 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
611 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 612 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 613 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
614 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 615 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 618 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 619 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 620 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 621 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
622 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 623 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 624 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 625 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 626 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
627 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 628 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 629 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 630 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 631 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 632 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 633 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 634 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 635 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 636 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 637 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 638 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
639 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
640 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 641 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
822c7ef4 642 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 643 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 644 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 645 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 646 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 647 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 648 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 649 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
650 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
651 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
652 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
653 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 654 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
655 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
656 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
657 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 658 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 659 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 660 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
96285cb8
GC		 661 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
662 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 663 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 664 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
e38c2874 665 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) },
7f82b6dd
AW		 666 { USB_DEVICE(ATMEL_VID, STK541_PID) },
667 { USB_DEVICE(DE_VID, STB_PID) },
668 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 669 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
670 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
fdcb0a0f
IA		 671 { }, /* Optional parameter entry */
672 { } /* Terminating entry */
1da177e4
LT		 673};
674
464cbb24 675MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 676
677static struct usb_driver ftdi_driver = {
678 .name = "ftdi_sio",
679 .probe = usb_serial_probe,
680 .disconnect = usb_serial_disconnect,
681 .id_table = id_table_combined,
5c09d144 682 .no_dynamic_id = 1,
1da177e4
LT		 683};
684
4c4c9432 685static const char *ftdi_chip_name[] = {
1da177e4
LT		 686 [SIO] = "SIO", /* the serial part of FT8U100AX */
687 [FT8U232AM] = "FT8U232AM",
688 [FT232BM] = "FT232BM",
689 [FT2232C] = "FT2232C",
d8b21606 690 [FT232RL] = "FT232RL",
1da177e4
LT		 691};
692
693
694/* Constants for read urb and write urb */
695#define BUFSZ 512
696#define PKTSZ 64
697
698/* rx_flags */
699#define THROTTLED 0x01
700#define ACTUALLY_THROTTLED 0x02
701
1da177e4
LT		 702/* Used for TIOCMIWAIT */
703#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
704#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
705/* End TIOCMIWAIT */
706
bbc5d276
RK		 707#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
708 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 709
710/* function prototypes for a FTDI serial converter */
464cbb24
AC		 711static int ftdi_sio_probe(struct usb_serial *serial,
712 const struct usb_device_id *id);
713static void ftdi_shutdown(struct usb_serial *serial);
714static int ftdi_sio_port_probe(struct usb_serial_port *port);
715static int ftdi_sio_port_remove(struct usb_serial_port *port);
716static int ftdi_open(struct tty_struct *tty,
717 struct usb_serial_port *port, struct file *filp);
718static void ftdi_close(struct tty_struct *tty,
719 struct usb_serial_port *port, struct file *filp);
720static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
721 const unsigned char *buf, int count);
722static int ftdi_write_room(struct tty_struct *tty);
723static int ftdi_chars_in_buffer(struct tty_struct *tty);
724static void ftdi_write_bulk_callback(struct urb *urb);
725static void ftdi_read_bulk_callback(struct urb *urb);
726static void ftdi_process_read(struct work_struct *work);
727static void ftdi_set_termios(struct tty_struct *tty,
728 struct usb_serial_port *port, struct ktermios *old);
729static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
730static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
731 unsigned int set, unsigned int clear);
732static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
733 unsigned int cmd, unsigned long arg);
734static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
735static void ftdi_throttle(struct tty_struct *tty);
736static void ftdi_unthrottle(struct tty_struct *tty);
737
738static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
739static unsigned short int ftdi_232am_baud_to_divisor(int baud);
740static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
741static __u32 ftdi_232bm_baud_to_divisor(int baud);
1da177e4 742
ea65370d 743static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 744 .driver = {
745 .owner = THIS_MODULE,
269bda1c 746 .name = "ftdi_sio",
18fcac35 747 },
269bda1c 748 .description = "FTDI USB Serial Device",
d9b1b787 749 .usb_driver = &ftdi_driver ,
8f977e42 750 .id_table = id_table_combined,
1da177e4 751 .num_ports = 1,
8f977e42 752 .probe = ftdi_sio_probe,
12bdbe03
JR		 753 .port_probe = ftdi_sio_port_probe,
754 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 755 .open = ftdi_open,
756 .close = ftdi_close,
757 .throttle = ftdi_throttle,
758 .unthrottle = ftdi_unthrottle,
759 .write = ftdi_write,
760 .write_room = ftdi_write_room,
761 .chars_in_buffer = ftdi_chars_in_buffer,
762 .read_bulk_callback = ftdi_read_bulk_callback,
763 .write_bulk_callback = ftdi_write_bulk_callback,
764 .tiocmget = ftdi_tiocmget,
765 .tiocmset = ftdi_tiocmset,
766 .ioctl = ftdi_ioctl,
767 .set_termios = ftdi_set_termios,
768 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 769 .shutdown = ftdi_shutdown,
770};
771
1da177e4
LT		 772
773#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 774#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 775
776/* High and low are for DTR, RTS etc etc */
777#define HIGH 1
778#define LOW 0
779
22465400
IA		 780/* number of outstanding urbs to prevent userspace DoS from happening */
781#define URB_UPPER_LIMIT 42
782
1da177e4
LT		 783/*
784 * ***************************************************************************
fa91d43b 785 * Utility functions
1da177e4
LT		 786 * ***************************************************************************
787 */
788
789static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
790{
791 unsigned short int divisor;
464cbb24
AC		 792 /* divisor shifted 3 bits to the left */
793 int divisor3 = base / 2 / baud;
794 if ((divisor3 & 0x7) == 7)
795 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 796 divisor = divisor3 >> 3;
797 divisor3 &= 0x7;
464cbb24
AC		 798 if (divisor3 == 1)
799 divisor |= 0xc000;
800 else if (divisor3 >= 4)
801 divisor |= 0x4000;
802 else if (divisor3 != 0)
803 divisor |= 0x8000;
804 else if (divisor == 1)
805 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 806 return divisor;
807}
808
809static unsigned short int ftdi_232am_baud_to_divisor(int baud)
810{
464cbb24 811 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 812}
813
814static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
815{
816 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
817 __u32 divisor;
464cbb24
AC		 818 /* divisor shifted 3 bits to the left */
819 int divisor3 = base / 2 / baud;
1da177e4
LT		 820 divisor = divisor3 >> 3;
821 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
822 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 823 if (divisor == 1)
824 divisor = 0;
825 else if (divisor == 0x4001)
826 divisor = 1;
1da177e4
LT		 827 return divisor;
828}
829
830static __u32 ftdi_232bm_baud_to_divisor(int baud)
831{
464cbb24 832 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 833}
834
74ede0ff
IA		 835#define set_mctrl(port, set) update_mctrl((port), (set), 0)
836#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
837
464cbb24
AC		 838static int update_mctrl(struct usb_serial_port *port, unsigned int set,
839 unsigned int clear)
1da177e4
LT		 840{
841 struct ftdi_private *priv = usb_get_serial_port_data(port);
842 char *buf;
74ede0ff 843 unsigned urb_value;
1da177e4 844 int rv;
1da177e4 845
74ede0ff 846 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 847 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 848 return 0; /* no change */
849 }
1da177e4 850
1da177e4 851 buf = kmalloc(1, GFP_NOIO);
9b0f2582 852 if (!buf)
1da177e4 853 return -ENOMEM;
74ede0ff
IA		 854
855 clear &= ~set; /* 'set' takes precedence over 'clear' */
856 urb_value = 0;
857 if (clear & TIOCM_DTR)
858 urb_value |= FTDI_SIO_SET_DTR_LOW;
859 if (clear & TIOCM_RTS)
860 urb_value |= FTDI_SIO_SET_RTS_LOW;
861 if (set & TIOCM_DTR)
862 urb_value |= FTDI_SIO_SET_DTR_HIGH;
863 if (set & TIOCM_RTS)
864 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 865 rv = usb_control_msg(port->serial->dev,
866 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 867 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 868 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 869 urb_value, priv->interface,
1da177e4
LT		 870 buf, 0, WDR_TIMEOUT);
871
872 kfree(buf);
74ede0ff 873 if (rv < 0) {
43b11d33 874 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 875 __func__,
74ede0ff
IA		 876 (set & TIOCM_DTR) ? "HIGH" :
877 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
878 (set & TIOCM_RTS) ? "HIGH" :
879 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
880 } else {
441b62c1 881 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 882 (set & TIOCM_DTR) ? "HIGH" :
883 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
884 (set & TIOCM_RTS) ? "HIGH" :
885 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 886 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 887 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
888 }
1da177e4
LT		 889 return rv;
890}
891
892
464cbb24
AC		 893static __u32 get_ftdi_divisor(struct tty_struct *tty,
894 struct usb_serial_port *port)
1da177e4
LT		 895{ /* get_ftdi_divisor */
896 struct ftdi_private *priv = usb_get_serial_port_data(port);
897 __u32 div_value = 0;
898 int div_okay = 1;
899 int baud;
900
901 /*
464cbb24
AC		 902 * The logic involved in setting the baudrate can be cleanly split into
903 * 3 steps.
1da177e4 904 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 905 * 2. If these are not enough, you can set any speed using alt_speed as
906 * follows:
1da177e4
LT		 907 * - set tty->termios->c_cflag speed to B38400
908 * - set your real speed in tty->alt_speed; it gets ignored when
909 * alt_speed==0, (or)
464cbb24
AC		 910 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
911 * follows:
912 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
913 * this just sets alt_speed to (HI: 57600, VHI: 115200,
914 * SHI: 230400, WARP: 460800)
1da177e4
LT		 915 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
916 * 3. You can also set baud rate by setting custom divisor as follows
917 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 918 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
919 * follows:
1da177e4
LT		 920 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
921 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 922 * ** Step 3 is done courtesy of code borrowed from serial.c
923 * I should really spend some time and separate + move this common
924 * code to serial.c, it is replicated in nearly every serial driver
925 * you see.
1da177e4
LT		 926 */
927
464cbb24
AC		 928 /* 1. Get the baud rate from the tty settings, this observes
929 alt_speed hack */
1da177e4 930
95da310e 931 baud = tty_get_baud_rate(tty);
441b62c1 932 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 933
464cbb24
AC		 934 /* 2. Observe async-compatible custom_divisor hack, update baudrate
935 if needed */
1da177e4
LT		 936
937 if (baud == 38400 &&
938 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
939 (priv->custom_divisor)) {
940 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 941 dbg("%s - custom divisor %d sets baud rate to %d",
942 __func__, priv->custom_divisor, baud);
1da177e4
LT		 943 }
944
945 /* 3. Convert baudrate to device-specific divisor */
946
464cbb24
AC		 947 if (!baud)
948 baud = 9600;
949 switch (priv->chip_type) {
1da177e4 950 case SIO: /* SIO chip */
464cbb24 951 switch (baud) {
1da177e4
LT		 952 case 300: div_value = ftdi_sio_b300; break;
953 case 600: div_value = ftdi_sio_b600; break;
954 case 1200: div_value = ftdi_sio_b1200; break;
955 case 2400: div_value = ftdi_sio_b2400; break;
956 case 4800: div_value = ftdi_sio_b4800; break;
957 case 9600: div_value = ftdi_sio_b9600; break;
958 case 19200: div_value = ftdi_sio_b19200; break;
959 case 38400: div_value = ftdi_sio_b38400; break;
960 case 57600: div_value = ftdi_sio_b57600; break;
961 case 115200: div_value = ftdi_sio_b115200; break;
962 } /* baud */
963 if (div_value == 0) {
464cbb24
AC		 964 dbg("%s - Baudrate (%d) requested is not supported",
965 __func__, baud);
1da177e4 966 div_value = ftdi_sio_b9600;
bd5e47cc 967 baud = 9600;
1da177e4
LT		 968 div_okay = 0;
969 }
970 break;
971 case FT8U232AM: /* 8U232AM chip */
972 if (baud <= 3000000) {
973 div_value = ftdi_232am_baud_to_divisor(baud);
974 } else {
464cbb24 975 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 976 baud = 9600;
1da177e4
LT		 977 div_value = ftdi_232am_baud_to_divisor(9600);
978 div_okay = 0;
979 }
980 break;
981 case FT232BM: /* FT232BM chip */
982 case FT2232C: /* FT2232C chip */
3b009c63 983 case FT232RL:
1da177e4
LT		 984 if (baud <= 3000000) {
985 div_value = ftdi_232bm_baud_to_divisor(baud);
986 } else {
464cbb24 987 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 988 div_value = ftdi_232bm_baud_to_divisor(9600);
989 div_okay = 0;
669a6db1 990 baud = 9600;
1da177e4
LT		 991 }
992 break;
993 } /* priv->chip_type */
994
995 if (div_okay) {
996 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 997 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 998 ftdi_chip_name[priv->chip_type]);
999 }
1000
95da310e 1001 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1002 return div_value;
1da177e4
LT		 1003}
1004
95da310e
AC		 1005static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1006{
1007 struct ftdi_private *priv = usb_get_serial_port_data(port);
1008 char *buf;
464cbb24 1009 __u16 urb_value;
95da310e
AC		 1010 __u16 urb_index;
1011 __u32 urb_index_value;
1012 int rv;
1013
1014 buf = kmalloc(1, GFP_NOIO);
1015 if (!buf)
1016 return -ENOMEM;
1017
1018 urb_index_value = get_ftdi_divisor(tty, port);
1019 urb_value = (__u16)urb_index_value;
1020 urb_index = (__u16)(urb_index_value >> 16);
1021 if (priv->interface) { /* FT2232C */
1022 urb_index = (__u16)((urb_index << 8) | priv->interface);
1023 }
1024
1025 rv = usb_control_msg(port->serial->dev,
1026 usb_sndctrlpipe(port->serial->dev, 0),
1027 FTDI_SIO_SET_BAUDRATE_REQUEST,
1028 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1029 urb_value, urb_index,
1030 buf, 0, WDR_SHORT_TIMEOUT);
1031
1032 kfree(buf);
1033 return rv;
1034}
1035
1036
1da177e4 1037
464cbb24
AC		 1038static int get_serial_info(struct usb_serial_port *port,
1039 struct serial_struct __user *retinfo)
1da177e4
LT		 1040{
1041 struct ftdi_private *priv = usb_get_serial_port_data(port);
1042 struct serial_struct tmp;
1043
1044 if (!retinfo)
1045 return -EFAULT;
1046 memset(&tmp, 0, sizeof(tmp));
1047 tmp.flags = priv->flags;
1048 tmp.baud_base = priv->baud_base;
1049 tmp.custom_divisor = priv->custom_divisor;
1050 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1051 return -EFAULT;
1052 return 0;
1053} /* get_serial_info */
1054
1055
95da310e 1056static int set_serial_info(struct tty_struct *tty,
464cbb24 1057 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1058{ /* set_serial_info */
1059 struct ftdi_private *priv = usb_get_serial_port_data(port);
1060 struct serial_struct new_serial;
1061 struct ftdi_private old_priv;
1062
1063 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1064 return -EFAULT;
6b447f04
AC		 1065
1066 lock_kernel();
464cbb24 1067 old_priv = *priv;
1da177e4
LT		 1068
1069 /* Do error checking and permission checking */
1070
1071 if (!capable(CAP_SYS_ADMIN)) {
1072 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1073 (priv->flags & ~ASYNC_USR_MASK))) {
1074 unlock_kernel();
1da177e4 1075 return -EPERM;
64905b48 1076 }
1da177e4
LT		 1077 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1078 (new_serial.flags & ASYNC_USR_MASK));
1079 priv->custom_divisor = new_serial.custom_divisor;
1080 goto check_and_exit;
1081 }
1082
1083 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1084 (new_serial.baud_base < 9600)) {
1085 unlock_kernel();
1da177e4 1086 return -EINVAL;
6b447f04 1087 }
1da177e4
LT		 1088
1089 /* Make the changes - these are privileged changes! */
1090
1091 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1092 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1093 priv->custom_divisor = new_serial.custom_divisor;
1094
95da310e 1095 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4
LT		 1096
1097check_and_exit:
1098 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1099 (priv->flags & ASYNC_SPD_MASK)) {
1100 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1101 tty->alt_speed = 57600;
1da177e4 1102 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1103 tty->alt_speed = 115200;
1da177e4 1104 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1105 tty->alt_speed = 230400;
1da177e4 1106 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1107 tty->alt_speed = 460800;
1da177e4 1108 else
95da310e 1109 tty->alt_speed = 0;
1da177e4
LT		 1110 }
1111 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1112 (priv->flags & ASYNC_SPD_MASK)) ||
1113 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1114 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1115 unlock_kernel();
95da310e 1116 change_speed(tty, port);
1da177e4 1117 }
6b447f04
AC		 1118 else
1119 unlock_kernel();
95da310e 1120 return 0;
1da177e4
LT		 1121
1122} /* set_serial_info */
1123
1124
8f977e42
IA		 1125/* Determine type of FTDI chip based on USB config and descriptor. */
1126static void ftdi_determine_type(struct usb_serial_port *port)
1127{
1128 struct ftdi_private *priv = usb_get_serial_port_data(port);
1129 struct usb_serial *serial = port->serial;
1130 struct usb_device *udev = serial->dev;
1131 unsigned version;
1132 unsigned interfaces;
1133
1134 /* Assume it is not the original SIO device for now. */
f5e09b7c 1135 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1136 priv->write_offset = 0;
1137
1138 version = le16_to_cpu(udev->descriptor.bcdDevice);
1139 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1140 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1141 version, interfaces);
1142 if (interfaces > 1) {
1143 int inter;
1144
1145 /* Multiple interfaces. Assume FT2232C. */
1146 priv->chip_type = FT2232C;
1147 /* Determine interface code. */
1148 inter = serial->interface->altsetting->desc.bInterfaceNumber;
464cbb24 1149 if (inter == 0)
8f977e42 1150 priv->interface = PIT_SIOA;
464cbb24 1151 else
8f977e42 1152 priv->interface = PIT_SIOB;
8f977e42
IA		 1153 /* BM-type devices have a bug where bcdDevice gets set
1154 * to 0x200 when iSerialNumber is 0. */
1155 if (version < 0x500) {
1156 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1157 __func__);
8f977e42
IA		 1158 }
1159 } else if (version < 0x200) {
1160 /* Old device. Assume its the original SIO. */
1161 priv->chip_type = SIO;
1162 priv->baud_base = 12000000 / 16;
1163 priv->write_offset = 1;
1164 } else if (version < 0x400) {
1165 /* Assume its an FT8U232AM (or FT8U245AM) */
1166 /* (It might be a BM because of the iSerialNumber bug,
1167 * but it will still work as an AM device.) */
1168 priv->chip_type = FT8U232AM;
3b009c63 1169 } else if (version < 0x600) {
8f977e42
IA		 1170 /* Assume its an FT232BM (or FT245BM) */
1171 priv->chip_type = FT232BM;
3b009c63
DB		 1172 } else {
1173 /* Assume its an FT232R */
1174 priv->chip_type = FT232RL;
8f977e42 1175 }
c197a8db 1176 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1177}
1178
1179
1da177e4
LT		 1180/*
1181 * ***************************************************************************
1182 * Sysfs Attribute
1183 * ***************************************************************************
1184 */
1185
464cbb24
AC		 1186static ssize_t show_latency_timer(struct device *dev,
1187 struct device_attribute *attr, char *buf)
1da177e4
LT		 1188{
1189 struct usb_serial_port *port = to_usb_serial_port(dev);
1190 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1191 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1192 unsigned short latency = 0;
1193 int rv = 0;
5c09d144 1194
5c09d144 1195
464cbb24 1196 dbg("%s", __func__);
5c09d144 1197
1da177e4
LT		 1198 rv = usb_control_msg(udev,
1199 usb_rcvctrlpipe(udev, 0),
1200 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1201 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1202 0, priv->interface,
464cbb24 1203 (char *) &latency, 1, WDR_TIMEOUT);
5c09d144 1204
1da177e4 1205 if (rv < 0) {
898eb71c 1206 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1da177e4
LT		 1207 return -EIO;
1208 }
1209 return sprintf(buf, "%i\n", latency);
1210}
1211
1212/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1213static ssize_t store_latency_timer(struct device *dev,
1214 struct device_attribute *attr, const char *valbuf,
1215 size_t count)
1da177e4
LT		 1216{
1217 struct usb_serial_port *port = to_usb_serial_port(dev);
1218 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1219 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1220 char buf[1];
1221 int v = simple_strtoul(valbuf, NULL, 10);
1222 int rv = 0;
5c09d144 1223
441b62c1 1224 dbg("%s: setting latency timer = %i", __func__, v);
5c09d144 1225
1da177e4
LT		 1226 rv = usb_control_msg(udev,
1227 usb_sndctrlpipe(udev, 0),
1228 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1229 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1230 v, priv->interface,
1da177e4 1231 buf, 0, WDR_TIMEOUT);
5c09d144 1232
1da177e4 1233 if (rv < 0) {
898eb71c 1234 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1da177e4
LT		 1235 return -EIO;
1236 }
5c09d144 1237
1da177e4
LT		 1238 return count;
1239}
1240
1241/* Write an event character directly to the FTDI register. The ASCII
1242 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1243static ssize_t store_event_char(struct device *dev,
1244 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1245{
1246 struct usb_serial_port *port = to_usb_serial_port(dev);
1247 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1248 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1249 char buf[1];
1250 int v = simple_strtoul(valbuf, NULL, 10);
1251 int rv = 0;
5c09d144 1252
441b62c1 1253 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1254
1da177e4
LT		 1255 rv = usb_control_msg(udev,
1256 usb_sndctrlpipe(udev, 0),
1257 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1258 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1259 v, priv->interface,
1da177e4 1260 buf, 0, WDR_TIMEOUT);
5c09d144 1261
1da177e4
LT		 1262 if (rv < 0) {
1263 dbg("Unable to write event character: %i", rv);
1264 return -EIO;
1265 }
5c09d144 1266
1da177e4
LT		 1267 return count;
1268}
1269
464cbb24
AC		 1270static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1271 store_latency_timer);
1da177e4
LT		 1272static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1273
12bdbe03 1274static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1275{
12bdbe03 1276 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1277 int retval = 0;
1da177e4 1278
464cbb24 1279 dbg("%s", __func__);
13f4db9e 1280
1da177e4
LT		 1281 /* XXX I've no idea if the original SIO supports the event_char
1282 * sysfs parameter, so I'm playing it safe. */
1283 if (priv->chip_type != SIO) {
1284 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1285 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1286 if ((!retval) &&
97cd49eb
SM		 1287 (priv->chip_type == FT232BM ||
1288 priv->chip_type == FT2232C ||
1289 priv->chip_type == FT232RL)) {
12bdbe03 1290 retval = device_create_file(&port->dev,
13f4db9e 1291 &dev_attr_latency_timer);
1da177e4
LT		 1292 }
1293 }
13f4db9e 1294 return retval;
1da177e4
LT		 1295}
1296
12bdbe03 1297static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1298{
12bdbe03 1299 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1300
464cbb24 1301 dbg("%s", __func__);
1da177e4 1302
1da177e4
LT		 1303 /* XXX see create_sysfs_attrs */
1304 if (priv->chip_type != SIO) {
12bdbe03 1305 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1306 if (priv->chip_type == FT232BM ||
1307 priv->chip_type == FT2232C ||
1308 priv->chip_type == FT232RL) {
12bdbe03 1309 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1310 }
1311 }
5c09d144 1312
1da177e4
LT		 1313}
1314
1315/*
1316 * ***************************************************************************
1317 * FTDI driver specific functions
1318 * ***************************************************************************
1319 */
1320
8f977e42 1321/* Probe function to check for special devices */
464cbb24
AC		 1322static int ftdi_sio_probe(struct usb_serial *serial,
1323 const struct usb_device_id *id)
8f977e42 1324{
464cbb24
AC		 1325 struct ftdi_sio_quirk *quirk =
1326 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1327
1328 if (quirk && quirk->probe) {
1329 int ret = quirk->probe(serial);
1330 if (ret != 0)
1331 return ret;
1332 }
1333
8f977e42
IA		 1334 usb_set_serial_data(serial, (void *)id->driver_info);
1335
fa91d43b 1336 return 0;
8f977e42
IA		 1337}
1338
12bdbe03 1339static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1340{
1da177e4 1341 struct ftdi_private *priv;
0ffbbe25
ON		 1342 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1343
13f4db9e 1344
464cbb24 1345 dbg("%s", __func__);
1da177e4 1346
80b6ca48 1347 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1348 if (!priv) {
194343d9 1349 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1350 sizeof(struct ftdi_private));
1da177e4
LT		 1351 return -ENOMEM;
1352 }
1da177e4
LT		 1353
1354 spin_lock_init(&priv->rx_lock);
22465400 1355 spin_lock_init(&priv->tx_lock);
464cbb24 1356 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1357 /* This will push the characters through immediately rather
1358 than queue a task to deliver them */
1359 priv->flags = ASYNC_LOW_LATENCY;
1360
0ffbbe25
ON		 1361 if (quirk && quirk->port_probe)
1362 quirk->port_probe(priv);
1363
1da177e4 1364 /* Increase the size of read buffers */
1bc3c9e1 1365 kfree(port->bulk_in_buffer);
464cbb24 1366 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1367 if (!port->bulk_in_buffer) {
464cbb24 1368 kfree(priv);
1da177e4
LT		 1369 return -ENOMEM;
1370 }
1371 if (port->read_urb) {
1372 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1373 port->read_urb->transfer_buffer_length = BUFSZ;
1374 }
1375
c4028958
DH		 1376 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1377 priv->port = port;
76854cea 1378
1da177e4
LT		 1379 /* Free port's existing write urb and transfer buffer. */
1380 if (port->write_urb) {
464cbb24 1381 usb_free_urb(port->write_urb);
1da177e4
LT		 1382 port->write_urb = NULL;
1383 }
1bc3c9e1
JJ		 1384 kfree(port->bulk_out_buffer);
1385 port->bulk_out_buffer = NULL;
1da177e4 1386
12bdbe03 1387 usb_set_serial_port_data(port, priv);
1da177e4 1388
464cbb24 1389 ftdi_determine_type(port);
12bdbe03
JR		 1390 create_sysfs_attrs(port);
1391 return 0;
1392}
1da177e4 1393
8f977e42
IA		 1394/* Setup for the USB-UIRT device, which requires hardwired
1395 * baudrate (38400 gets mapped to 312500) */
1da177e4 1396/* Called from usbserial:serial_probe */
464cbb24 1397static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1398{
464cbb24 1399 dbg("%s", __func__);
1da177e4 1400
1da177e4
LT		 1401 priv->flags |= ASYNC_SPD_CUST;
1402 priv->custom_divisor = 77;
669a6db1 1403 priv->force_baud = 38400;
8f977e42 1404} /* ftdi_USB_UIRT_setup */
1da177e4 1405
8f977e42
IA		 1406/* Setup for the HE-TIRA1 device, which requires hardwired
1407 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1408
1409static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1410{
464cbb24 1411 dbg("%s", __func__);
1da177e4 1412
1da177e4
LT		 1413 priv->flags |= ASYNC_SPD_CUST;
1414 priv->custom_divisor = 240;
669a6db1 1415 priv->force_baud = 38400;
1da177e4 1416 priv->force_rtscts = 1;
8f977e42 1417} /* ftdi_HE_TIRA1_setup */
1da177e4 1418
fa91d43b 1419/*
20734345
HW		 1420 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1421 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1422 * userspace using openocd.
fa91d43b 1423 */
20734345 1424static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1425{
1426 struct usb_device *udev = serial->dev;
1427 struct usb_interface *interface = serial->interface;
1428
464cbb24 1429 dbg("%s", __func__);
fa91d43b
TL		 1430
1431 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1432 dev_info(&udev->dev,
1433 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1434 return -ENODEV;
1435 }
1436
1437 return 0;
1438}
1da177e4 1439
546d7eec
KV		 1440/*
1441 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1442 * We have to correct it if we want to read from it.
1443 */
1444static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1445{
1446 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1447 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1448
1449 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1450 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1451 dev_info(&serial->dev->dev,
1452 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1453 }
1454
1455 return 0;
1456}
1457
5c09d144 1458/* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1da177e4
LT		 1459 * it is called when the usb device is disconnected
1460 *
1461 * usbserial:usb_serial_disconnect
1462 * calls __serial_close for each open of the port
1463 * shutdown is called then (ie ftdi_shutdown)
1464 */
464cbb24 1465static void ftdi_shutdown(struct usb_serial *serial)
12bdbe03 1466{
441b62c1 1467 dbg("%s", __func__);
12bdbe03 1468}
5c09d144 1469
12bdbe03
JR		 1470static int ftdi_sio_port_remove(struct usb_serial_port *port)
1471{
1da177e4
LT		 1472 struct ftdi_private *priv = usb_get_serial_port_data(port);
1473
441b62c1 1474 dbg("%s", __func__);
1da177e4 1475
12bdbe03 1476 remove_sysfs_attrs(port);
5c09d144
DB		 1477
1478 /* all open ports are closed at this point
464cbb24 1479 * (by usbserial.c:__serial_close, which calls ftdi_close)
1da177e4
LT		 1480 */
1481
1482 if (priv) {
1483 usb_set_serial_port_data(port, NULL);
1484 kfree(priv);
1485 }
1da177e4 1486
12bdbe03
JR		 1487 return 0;
1488}
1da177e4 1489
95da310e
AC		 1490static int ftdi_open(struct tty_struct *tty,
1491 struct usb_serial_port *port, struct file *filp)
1da177e4 1492{ /* ftdi_open */
1da177e4
LT		 1493 struct usb_device *dev = port->serial->dev;
1494 struct ftdi_private *priv = usb_get_serial_port_data(port);
1495 unsigned long flags;
5c09d144 1496
1da177e4
LT		 1497 int result = 0;
1498 char buf[1]; /* Needed for the usb_control_msg I think */
1499
441b62c1 1500 dbg("%s", __func__);
1da177e4 1501
22465400
IA		 1502 spin_lock_irqsave(&priv->tx_lock, flags);
1503 priv->tx_bytes = 0;
1504 spin_unlock_irqrestore(&priv->tx_lock, flags);
1505 spin_lock_irqsave(&priv->rx_lock, flags);
1506 priv->rx_bytes = 0;
1507 spin_unlock_irqrestore(&priv->rx_lock, flags);
1508
95da310e
AC		 1509 if (tty)
1510 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4
LT		 1511
1512 /* No error checking for this (will get errors later anyway) */
1513 /* See ftdi_sio.h for description of what is reset */
1514 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1515 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1516 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1517 priv->interface, buf, 0, WDR_TIMEOUT);
1518
1519 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1520 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1521 This is same behaviour as serial.c/rs_open() - Kuba */
1522
1523 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1524 if (tty)
1525 ftdi_set_termios(tty, port, tty->termios);
1da177e4
LT		 1526
1527 /* FIXME: Flow control might be enabled, so it should be checked -
1528 we have no control of defaults! */
1529 /* Turn on RTS and DTR since we are not flow controlling by default */
74ede0ff 1530 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 1531
1532 /* Not throttled */
1533 spin_lock_irqsave(&priv->rx_lock, flags);
1534 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1535 spin_unlock_irqrestore(&priv->rx_lock, flags);
1536
1537 /* Start reading from the device */
76854cea 1538 priv->rx_processed = 0;
1da177e4 1539 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1540 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1541 port->read_urb->transfer_buffer,
1542 port->read_urb->transfer_buffer_length,
1543 ftdi_read_bulk_callback, port);
1da177e4
LT		 1544 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1545 if (result)
194343d9
GKH		 1546 dev_err(&port->dev,
1547 "%s - failed submitting read urb, error %d\n",
1548 __func__, result);
1da177e4
LT		 1549
1550
1551 return result;
1552} /* ftdi_open */
1553
1554
1555
5c09d144 1556/*
1da177e4
LT		 1557 * usbserial:__serial_close only calls ftdi_close if the point is open
1558 *
1559 * This only gets called when it is the last close
5c09d144
DB		 1560 *
1561 *
1da177e4
LT		 1562 */
1563
95da310e
AC		 1564static void ftdi_close(struct tty_struct *tty,
1565 struct usb_serial_port *port, struct file *filp)
1da177e4 1566{ /* ftdi_close */
95da310e 1567 unsigned int c_cflag = tty->termios->c_cflag;
1da177e4
LT		 1568 struct ftdi_private *priv = usb_get_serial_port_data(port);
1569 char buf[1];
1570
441b62c1 1571 dbg("%s", __func__);
1da177e4 1572
95bef012 1573 mutex_lock(&port->serial->disc_mutex);
464cbb24 1574 if (c_cflag & HUPCL && !port->serial->disconnected) {
1da177e4 1575 /* Disable flow control */
5c09d144 1576 if (usb_control_msg(port->serial->dev,
1da177e4
LT		 1577 usb_sndctrlpipe(port->serial->dev, 0),
1578 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1579 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1580 0, priv->interface, buf, 0,
1581 WDR_TIMEOUT) < 0) {
194343d9 1582 dev_err(&port->dev, "error from flowcontrol urb\n");
5c09d144 1583 }
1da177e4 1584
74ede0ff
IA		 1585 /* drop RTS and DTR */
1586 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4 1587 } /* Note change no line if hupcl is off */
95bef012 1588 mutex_unlock(&port->serial->disc_mutex);
76854cea
IA		 1589
1590 /* cancel any scheduled reading */
1591 cancel_delayed_work(&priv->rx_work);
1592 flush_scheduled_work();
5c09d144 1593
1da177e4 1594 /* shutdown our bulk read */
794c944e 1595 usb_kill_urb(port->read_urb);
1da177e4
LT		 1596} /* ftdi_close */
1597
1598
5c09d144 1599
1da177e4
LT		 1600/* The SIO requires the first byte to have:
1601 * B0 1
1602 * B1 0
1603 * B2..7 length of message excluding byte 0
1604 *
1605 * The new devices do not require this byte
1606 */
95da310e 1607static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1608 const unsigned char *buf, int count)
1609{ /* ftdi_write */
1610 struct ftdi_private *priv = usb_get_serial_port_data(port);
1611 struct urb *urb;
1612 unsigned char *buffer;
1613 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1614 int status;
1615 int transfer_size;
22465400 1616 unsigned long flags;
1da177e4 1617
441b62c1 1618 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1619
1620 if (count == 0) {
1621 dbg("write request of 0 bytes");
1622 return 0;
1623 }
22465400
IA		 1624 spin_lock_irqsave(&priv->tx_lock, flags);
1625 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1626 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1627 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1628 return 0;
1629 }
62127a58 1630 priv->tx_outstanding_urbs++;
22465400 1631 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1632
1da177e4 1633 data_offset = priv->write_offset;
464cbb24 1634 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1635
1636 /* Determine total transfer size */
1637 transfer_size = count;
1638 if (data_offset > 0) {
1639 /* Original sio needs control bytes too... */
1640 transfer_size += (data_offset *
1641 ((count + (PKTSZ - 1 - data_offset)) /
1642 (PKTSZ - data_offset)));
1643 }
1644
464cbb24 1645 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1646 if (!buffer) {
194343d9
GKH		 1647 dev_err(&port->dev,
1648 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1649 count = -ENOMEM;
1650 goto error_no_buffer;
1da177e4
LT		 1651 }
1652
1653 urb = usb_alloc_urb(0, GFP_ATOMIC);
1654 if (!urb) {
194343d9 1655 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1656 count = -ENOMEM;
1657 goto error_no_urb;
1da177e4
LT		 1658 }
1659
1660 /* Copy data */
1661 if (data_offset > 0) {
464cbb24
AC		 1662 /* Original sio requires control byte at start of
1663 each packet. */
1da177e4
LT		 1664 int user_pktsz = PKTSZ - data_offset;
1665 int todo = count;
1666 unsigned char *first_byte = buffer;
1667 const unsigned char *current_position = buf;
1668
1669 while (todo > 0) {
464cbb24 1670 if (user_pktsz > todo)
1da177e4 1671 user_pktsz = todo;
1da177e4 1672 /* Write the control byte at the front of the packet*/
5c09d144 1673 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1674 /* Copy data for packet */
464cbb24 1675 memcpy(first_byte + data_offset,
1da177e4
LT		 1676 current_position, user_pktsz);
1677 first_byte += user_pktsz + data_offset;
1678 current_position += user_pktsz;
1679 todo -= user_pktsz;
1680 }
1681 } else {
1682 /* No control byte required. */
1683 /* Copy in the data to send */
464cbb24 1684 memcpy(buffer, buf, count);
1da177e4
LT		 1685 }
1686
464cbb24
AC		 1687 usb_serial_debug_data(debug, &port->dev, __func__,
1688 transfer_size, buffer);
1da177e4
LT		 1689
1690 /* fill the buffer and send it */
5c09d144 1691 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1692 usb_sndbulkpipe(port->serial->dev,
1693 port->bulk_out_endpointAddress),
1694 buffer, transfer_size,
1695 ftdi_write_bulk_callback, port);
1da177e4
LT		 1696
1697 status = usb_submit_urb(urb, GFP_ATOMIC);
1698 if (status) {
194343d9
GKH		 1699 dev_err(&port->dev,
1700 "%s - failed submitting write urb, error %d\n",
1701 __func__, status);
1da177e4 1702 count = status;
62127a58 1703 goto error;
22465400
IA		 1704 } else {
1705 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1706 priv->tx_outstanding_bytes += count;
1707 priv->tx_bytes += count;
1708 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1709 }
1710
1711 /* we are done with this urb, so let the host driver
1712 * really free it when it is finished with it */
62127a58 1713 usb_free_urb(urb);
1da177e4 1714
441b62c1 1715 dbg("%s write returning: %d", __func__, count);
1da177e4 1716 return count;
62127a58
ON		 1717error:
1718 usb_free_urb(urb);
1719error_no_urb:
464cbb24 1720 kfree(buffer);
62127a58
ON		 1721error_no_buffer:
1722 spin_lock_irqsave(&priv->tx_lock, flags);
1723 priv->tx_outstanding_urbs--;
1724 spin_unlock_irqrestore(&priv->tx_lock, flags);
1725 return count;
1da177e4
LT		 1726} /* ftdi_write */
1727
1728
1729/* This function may get called when the device is closed */
1730
464cbb24 1731static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1732{
22465400 1733 unsigned long flags;
cdc97792 1734 struct usb_serial_port *port = urb->context;
22465400
IA		 1735 struct ftdi_private *priv;
1736 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1737 unsigned long countback;
0fb0aa18 1738 int status = urb->status;
1da177e4
LT		 1739
1740 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1741 kfree(urb->transfer_buffer);
1da177e4 1742
441b62c1 1743 dbg("%s - port %d", __func__, port->number);
5c09d144 1744
0fb0aa18
GKH		 1745 if (status) {
1746 dbg("nonzero write bulk status received: %d", status);
1da177e4
LT		 1747 return;
1748 }
1749
22465400
IA		 1750 priv = usb_get_serial_port_data(port);
1751 if (!priv) {
441b62c1 1752 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1753 return;
1754 }
1755 /* account for transferred data */
1756 countback = urb->actual_length;
1757 data_offset = priv->write_offset;
1758 if (data_offset > 0) {
1759 /* Subtract the control bytes */
dfa5ec79 1760 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
22465400
IA		 1761 }
1762 spin_lock_irqsave(&priv->tx_lock, flags);
1763 --priv->tx_outstanding_urbs;
1764 priv->tx_outstanding_bytes -= countback;
1765 spin_unlock_irqrestore(&priv->tx_lock, flags);
1766
cf2c7481 1767 usb_serial_port_softint(port);
1da177e4
LT		 1768} /* ftdi_write_bulk_callback */
1769
1770
95da310e 1771static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1772{
95da310e 1773 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1774 struct ftdi_private *priv = usb_get_serial_port_data(port);
1775 int room;
1776 unsigned long flags;
1777
441b62c1 1778 dbg("%s - port %d", __func__, port->number);
1da177e4 1779
22465400
IA		 1780 spin_lock_irqsave(&priv->tx_lock, flags);
1781 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1782 /*
1783 * We really can take anything the user throws at us
1784 * but let's pick a nice big number to tell the tty
1785 * layer that we have lots of free space
1786 */
1787 room = 2048;
1788 } else {
1789 room = 0;
1790 }
1791 spin_unlock_irqrestore(&priv->tx_lock, flags);
1792 return room;
95da310e 1793}
1da177e4 1794
95da310e
AC		 1795static int ftdi_chars_in_buffer(struct tty_struct *tty)
1796{
1797 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1798 struct ftdi_private *priv = usb_get_serial_port_data(port);
1799 int buffered;
1800 unsigned long flags;
1801
441b62c1 1802 dbg("%s - port %d", __func__, port->number);
1da177e4 1803
22465400
IA		 1804 spin_lock_irqsave(&priv->tx_lock, flags);
1805 buffered = (int)priv->tx_outstanding_bytes;
1806 spin_unlock_irqrestore(&priv->tx_lock, flags);
1807 if (buffered < 0) {
194343d9
GKH		 1808 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1809 __func__);
22465400
IA		 1810 buffered = 0;
1811 }
1812 return buffered;
95da310e 1813}
1da177e4 1814
95da310e
AC		 1815static void ftdi_read_bulk_callback(struct urb *urb)
1816{
cdc97792 1817 struct usb_serial_port *port = urb->context;
1da177e4
LT		 1818 struct tty_struct *tty;
1819 struct ftdi_private *priv;
22465400
IA		 1820 unsigned long countread;
1821 unsigned long flags;
0fb0aa18 1822 int status = urb->status;
1da177e4
LT		 1823
1824 if (urb->number_of_packets > 0) {
194343d9
GKH		 1825 dev_err(&port->dev, "%s transfer_buffer_length %d "
1826 "actual_length %d number of packets %d\n", __func__,
1827 urb->transfer_buffer_length,
1828 urb->actual_length, urb->number_of_packets);
1829 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1830 urb->transfer_flags);
1da177e4
LT		 1831 }
1832
441b62c1 1833 dbg("%s - port %d", __func__, port->number);
1da177e4 1834
95da310e 1835 if (port->port.count <= 0)
1da177e4
LT		 1836 return;
1837
4a90f09b 1838 tty = tty_port_tty_get(&port->port);
1da177e4 1839 if (!tty) {
464cbb24 1840 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1841 return;
1842 }
1843
1844 priv = usb_get_serial_port_data(port);
1845 if (!priv) {
441b62c1 1846 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1847 goto out;
1da177e4
LT		 1848 }
1849
464cbb24 1850 if (urb != port->read_urb)
194343d9 1851 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1da177e4 1852
0fb0aa18 1853 if (status) {
464cbb24
AC		 1854 /* This will happen at close every time so it is a dbg not an
1855 err */
1856 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
4a90f09b 1857 goto out;
1da177e4
LT		 1858 }
1859
22465400
IA		 1860 /* count data bytes, but not status bytes */
1861 countread = urb->actual_length;
dfa5ec79 1862 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
22465400
IA		 1863 spin_lock_irqsave(&priv->rx_lock, flags);
1864 priv->rx_bytes += countread;
1865 spin_unlock_irqrestore(&priv->rx_lock, flags);
1866
c4028958 1867 ftdi_process_read(&priv->rx_work.work);
4a90f09b
AC		 1868out:
1869 tty_kref_put(tty);
1da177e4
LT		 1870} /* ftdi_read_bulk_callback */
1871
1872
464cbb24 1873static void ftdi_process_read(struct work_struct *work)
1da177e4 1874{ /* ftdi_process_read */
c4028958
DH		 1875 struct ftdi_private *priv =
1876 container_of(work, struct ftdi_private, rx_work.work);
1877 struct usb_serial_port *port = priv->port;
1da177e4
LT		 1878 struct urb *urb;
1879 struct tty_struct *tty;
1da177e4 1880 char error_flag;
5c09d144 1881 unsigned char *data;
1da177e4
LT		 1882
1883 int i;
1884 int result;
1885 int need_flip;
1886 int packet_offset;
76854cea 1887 unsigned long flags;
1da177e4 1888
441b62c1 1889 dbg("%s - port %d", __func__, port->number);
1da177e4 1890
95da310e 1891 if (port->port.count <= 0)
1da177e4
LT		 1892 return;
1893
4a90f09b 1894 tty = tty_port_tty_get(&port->port);
1da177e4 1895 if (!tty) {
464cbb24 1896 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1897 return;
1898 }
1899
1900 priv = usb_get_serial_port_data(port);
1901 if (!priv) {
441b62c1 1902 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1903 goto out;
1da177e4
LT		 1904 }
1905
1906 urb = port->read_urb;
1907 if (!urb) {
441b62c1 1908 dbg("%s - bad read_urb pointer - exiting", __func__);
4a90f09b 1909 goto out;
1da177e4
LT		 1910 }
1911
1912 data = urb->transfer_buffer;
1913
76854cea 1914 if (priv->rx_processed) {
441b62c1 1915 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 1916 priv->rx_processed,
1917 urb->actual_length - priv->rx_processed);
1da177e4 1918 } else {
76854cea 1919 /* The first two bytes of every read packet are status */
464cbb24
AC		 1920 if (urb->actual_length > 2)
1921 usb_serial_debug_data(debug, &port->dev, __func__,
1922 urb->actual_length, data);
1923 else
1924 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 1925 }
1da177e4
LT		 1926
1927
1928 /* TO DO -- check for hung up line and handle appropriately: */
1929 /* send hangup */
1930 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1931 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1932
1933 need_flip = 0;
464cbb24
AC		 1934 for (packet_offset = priv->rx_processed;
1935 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
76854cea
IA		 1936 int length;
1937
464cbb24
AC		 1938 /* Compare new line status to the old one, signal if different/
1939 N.B. packet may be processed more than once, but differences
1940 are only processed once. */
1da177e4 1941 if (priv != NULL) {
464cbb24
AC		 1942 char new_status = data[packet_offset + 0] &
1943 FTDI_STATUS_B0_MASK;
1da177e4 1944 if (new_status != priv->prev_status) {
464cbb24
AC		 1945 priv->diff_status |=
1946 new_status ^ priv->prev_status;
1da177e4
LT		 1947 wake_up_interruptible(&priv->delta_msr_wait);
1948 priv->prev_status = new_status;
1949 }
1950 }
1951
76854cea
IA		 1952 length = min(PKTSZ, urb->actual_length-packet_offset)-2;
1953 if (length < 0) {
194343d9
GKH		 1954 dev_err(&port->dev, "%s - bad packet length: %d\n",
1955 __func__, length+2);
76854cea
IA		 1956 length = 0;
1957 }
1958
76854cea 1959 if (priv->rx_flags & THROTTLED) {
441b62c1 1960 dbg("%s - throttled", __func__);
76854cea
IA		 1961 break;
1962 }
33f0f88f 1963 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 1964 /* break out & wait for throttling/unthrottling to
1965 happen */
441b62c1 1966 dbg("%s - receive room low", __func__);
76854cea
IA		 1967 break;
1968 }
1969
1da177e4
LT		 1970 /* Handle errors and break */
1971 error_flag = TTY_NORMAL;
464cbb24
AC		 1972 /* Although the device uses a bitmask and hence can have
1973 multiple errors on a packet - the order here sets the
1974 priority the error is returned to the tty layer */
1da177e4 1975
464cbb24 1976 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 1977 error_flag = TTY_OVERRUN;
1978 dbg("OVERRRUN error");
1979 }
464cbb24 1980 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 1981 error_flag = TTY_BREAK;
1982 dbg("BREAK received");
1983 }
464cbb24 1984 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 1985 error_flag = TTY_PARITY;
1986 dbg("PARITY error");
1987 }
464cbb24 1988 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 1989 error_flag = TTY_FRAME;
1990 dbg("FRAMING error");
1991 }
76854cea
IA		 1992 if (length > 0) {
1993 for (i = 2; i < length+2; i++) {
5c09d144 1994 /* Note that the error flag is duplicated for
1da177e4
LT		 1995 every character received since we don't know
1996 which character it applied to */
464cbb24
AC		 1997 tty_insert_flip_char(tty,
1998 data[packet_offset + i], error_flag);
1da177e4
LT		 1999 }
2000 need_flip = 1;
2001 }
2002
2003#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2004 /* if a parity error is detected you get status packets forever
2005 until a character is sent without a parity error.
464cbb24
AC		 2006 This doesn't work well since the application receives a
2007 never ending stream of bad data - even though new data
2008 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 2009 However - this might make sense for framing errors and so on
1da177e4
LT		 2010 so I am leaving the code in for now.
2011 */
2012 else {
464cbb24 2013 if (error_flag != TTY_NORMAL) {
1da177e4 2014 dbg("error_flag is not normal");
464cbb24
AC		 2015 /* In this case it is just status - if that is
2016 an error send a bad character */
2017 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 2018 tty_flip_buffer_push(tty);
1da177e4
LT		 2019 tty_insert_flip_char(tty, 0xff, error_flag);
2020 need_flip = 1;
2021 }
2022 }
2023#endif
2024 } /* "for(packet_offset=0..." */
2025
2026 /* Low latency */
464cbb24 2027 if (need_flip)
1da177e4 2028 tty_flip_buffer_push(tty);
1da177e4 2029
76854cea
IA		 2030 if (packet_offset < urb->actual_length) {
2031 /* not completely processed - record progress */
2032 priv->rx_processed = packet_offset;
2033 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2034 __func__, packet_offset,
76854cea
IA		 2035 urb->actual_length - packet_offset);
2036 /* check if we were throttled while processing */
2037 spin_lock_irqsave(&priv->rx_lock, flags);
2038 if (priv->rx_flags & THROTTLED) {
2039 priv->rx_flags |= ACTUALLY_THROTTLED;
2040 spin_unlock_irqrestore(&priv->rx_lock, flags);
2041 dbg("%s - deferring remainder until unthrottled",
441b62c1 2042 __func__);
a9fec710 2043 goto out;
76854cea
IA		 2044 }
2045 spin_unlock_irqrestore(&priv->rx_lock, flags);
2046 /* if the port is closed stop trying to read */
464cbb24 2047 if (port->port.count > 0)
76854cea
IA		 2048 /* delay processing of remainder */
2049 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2050 else
441b62c1 2051 dbg("%s - port is closed", __func__);
4a90f09b 2052 goto out;
76854cea
IA		 2053 }
2054
2055 /* urb is completely processed */
2056 priv->rx_processed = 0;
2057
1da177e4 2058 /* if the port is closed stop trying to read */
464cbb24 2059 if (port->port.count > 0) {
1da177e4 2060 /* Continue trying to always read */
5c09d144 2061 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2062 usb_rcvbulkpipe(port->serial->dev,
2063 port->bulk_in_endpointAddress),
2064 port->read_urb->transfer_buffer,
2065 port->read_urb->transfer_buffer_length,
2066 ftdi_read_bulk_callback, port);
1da177e4
LT		 2067
2068 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2069 if (result)
194343d9
GKH		 2070 dev_err(&port->dev,
2071 "%s - failed resubmitting read urb, error %d\n",
2072 __func__, result);
1da177e4 2073 }
4a90f09b
AC		 2074out:
2075 tty_kref_put(tty);
1da177e4
LT		 2076} /* ftdi_process_read */
2077
2078
95da310e 2079static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2080{
95da310e 2081 struct usb_serial_port *port = tty->driver_data;
1da177e4 2082 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2083 __u16 urb_value = 0;
1da177e4 2084 char buf[1];
5c09d144 2085
1da177e4
LT		 2086 /* break_state = -1 to turn on break, and 0 to turn off break */
2087 /* see drivers/char/tty_io.c to see it used */
2088 /* last_set_data_urb_value NEVER has the break bit set in it */
2089
464cbb24 2090 if (break_state)
1da177e4 2091 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2092 else
5c09d144 2093 urb_value = priv->last_set_data_urb_value;
5c09d144 2094
464cbb24
AC		 2095 if (usb_control_msg(port->serial->dev,
2096 usb_sndctrlpipe(port->serial->dev, 0),
2097 FTDI_SIO_SET_DATA_REQUEST,
2098 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2099 urb_value , priv->interface,
2100 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2101 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2102 "(state was %d)\n", __func__, break_state);
5c09d144 2103 }
1da177e4 2104
464cbb24
AC		 2105 dbg("%s break state is %d - urb is %d", __func__,
2106 break_state, urb_value);
5c09d144 2107
1da177e4
LT		 2108}
2109
2110
2111/* old_termios contains the original termios settings and tty->termios contains
2112 * the new setting to be used
2113 * WARNING: set_termios calls this with old_termios in kernel space
2114 */
2115
95da310e
AC		 2116static void ftdi_set_termios(struct tty_struct *tty,
2117 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2118{ /* ftdi_termios */
2119 struct usb_device *dev = port->serial->dev;
1da177e4 2120 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2121 struct ktermios *termios = tty->termios;
669a6db1 2122 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2123 __u16 urb_value; /* will hold the new flags */
2124 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2125
464cbb24 2126 /* Added for xon/xoff support */
669a6db1 2127 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2128 unsigned char vstop;
2129 unsigned char vstart;
5c09d144 2130
441b62c1 2131 dbg("%s", __func__);
1da177e4 2132
464cbb24
AC		 2133 /* Force baud rate if this device requires it, unless it is set to
2134 B0. */
669a6db1 2135 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2136 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2137 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2138 priv->force_baud);
1da177e4
LT		 2139 }
2140
2141 /* Force RTS-CTS if this device requires it. */
2142 if (priv->force_rtscts) {
441b62c1 2143 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2144 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2145 }
2146
669a6db1 2147 cflag = termios->c_cflag;
1da177e4 2148
5c09d144
DB		 2149 /* FIXME -For this cut I don't care if the line is really changing or
2150 not - so just do the change regardless - should be able to
1da177e4 2151 compare old_termios and tty->termios */
5c09d144 2152 /* NOTE These routines can get interrupted by
464cbb24
AC		 2153 ftdi_sio_read_bulk_callback - need to examine what this means -
2154 don't see any problems yet */
5c09d144 2155
1da177e4 2156 /* Set number of data bits, parity, stop bits */
5c09d144 2157
669a6db1
AC		 2158 termios->c_cflag &= ~CMSPAR;
2159
1da177e4
LT		 2160 urb_value = 0;
2161 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2162 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2163 urb_value |= (cflag & PARENB ?
2164 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2165 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2166 FTDI_SIO_SET_DATA_PARITY_NONE);
2167 if (cflag & CSIZE) {
2168 switch (cflag & CSIZE) {
2169 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2170 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2171 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2172 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2173 default:
194343d9 2174 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2175 }
2176 }
2177
464cbb24
AC		 2178 /* This is needed by the break command since it uses the same command
2179 - but is or'ed with this value */
1da177e4 2180 priv->last_set_data_urb_value = urb_value;
5c09d144 2181
1da177e4 2182 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2183 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2184 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2185 urb_value , priv->interface,
279e1545 2186 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2187 dev_err(&port->dev, "%s FAILED to set "
2188 "databits/stopbits/parity\n", __func__);
5c09d144 2189 }
1da177e4
LT		 2190
2191 /* Now do the baudrate */
464cbb24 2192 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2193 /* Disable flow control */
2194 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2195 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2196 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2197 0, priv->interface,
1da177e4 2198 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2199 dev_err(&port->dev,
2200 "%s error from disable flowcontrol urb\n",
2201 __func__);
5c09d144 2202 }
1da177e4 2203 /* Drop RTS and DTR */
74ede0ff 2204 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2205 } else {
2206 /* set the baudrate determined before */
464cbb24 2207 if (change_speed(tty, port))
194343d9
GKH		 2208 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2209 __func__);
72a755fc 2210 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2211 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2212 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2213 }
2214
2215 /* Set flow control */
2216 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2217 if (cflag & CRTSCTS) {
441b62c1 2218 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2219 if (usb_control_msg(dev,
1da177e4 2220 usb_sndctrlpipe(dev, 0),
5c09d144 2221 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2222 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2223 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2224 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2225 dev_err(&port->dev,
2226 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2227 }
2228
2229 } else {
1da177e4
LT		 2230 /*
2231 * Xon/Xoff code
2232 *
464cbb24
AC		 2233 * Check the IXOFF status in the iflag component of the
2234 * termios structure. If IXOFF is not set, the pre-xon/xoff
2235 * code is executed.
2236 */
1da177e4 2237 if (iflag & IXOFF) {
464cbb24
AC		 2238 dbg("%s request to enable xonxoff iflag=%04x",
2239 __func__, iflag);
2240 /* Try to enable the XON/XOFF on the ftdi_sio
2241 * Set the vstart and vstop -- could have been done up
2242 * above where a lot of other dereferencing is done but
2243 * that would be very inefficient as vstart and vstop
2244 * are not always needed.
2245 */
669a6db1
AC		 2246 vstart = termios->c_cc[VSTART];
2247 vstop = termios->c_cc[VSTOP];
464cbb24 2248 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2249
2250 if (usb_control_msg(dev,
2251 usb_sndctrlpipe(dev, 0),
2252 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2253 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2254 urb_value , (FTDI_SIO_XON_XOFF_HS
2255 | priv->interface),
2256 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2257 dev_err(&port->dev, "urb failed to set to "
2258 "xon/xoff flow control\n");
1da177e4
LT		 2259 }
2260 } else {
464cbb24
AC		 2261 /* else clause to only run if cflag ! CRTSCTS and iflag
2262 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2263 * stack - not by device */
441b62c1 2264 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2265 if (usb_control_msg(dev,
1da177e4 2266 usb_sndctrlpipe(dev, 0),
5c09d144 2267 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2268 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2269 0, priv->interface,
1da177e4 2270 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2271 dev_err(&port->dev,
2272 "urb failed to clear flow control\n");
5c09d144 2273 }
1da177e4 2274 }
5c09d144 2275
1da177e4
LT		 2276 }
2277 return;
95da310e 2278}
1da177e4 2279
95da310e 2280static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2281{
95da310e 2282 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2283 struct ftdi_private *priv = usb_get_serial_port_data(port);
2284 unsigned char buf[2];
2285 int ret;
2286
441b62c1 2287 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2288 switch (priv->chip_type) {
2289 case SIO:
2290 /* Request the status from the device */
464cbb24
AC		 2291 ret = usb_control_msg(port->serial->dev,
2292 usb_rcvctrlpipe(port->serial->dev, 0),
2293 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2294 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2295 0, 0,
2296 buf, 1, WDR_TIMEOUT);
2297 if (ret < 0) {
43b11d33 2298 dbg("%s Could not get modem status of device - err: %d", __func__,
1da177e4 2299 ret);
464cbb24 2300 return ret;
1da177e4
LT		 2301 }
2302 break;
2303 case FT8U232AM:
2304 case FT232BM:
2305 case FT2232C:
ed6e5282 2306 case FT232RL:
464cbb24
AC		 2307 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2308 value) - in the same format as the data returned from the in
2309 point */
2310 ret = usb_control_msg(port->serial->dev,
2311 usb_rcvctrlpipe(port->serial->dev, 0),
2312 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2313 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2314 0, priv->interface,
2315 buf, 2, WDR_TIMEOUT);
2316 if (ret < 0) {
43b11d33 2317 dbg("%s Could not get modem status of device - err: %d", __func__,
1da177e4 2318 ret);
464cbb24 2319 return ret;
1da177e4
LT		 2320 }
2321 break;
2322 default:
2323 return -EFAULT;
2324 break;
2325 }
5c09d144 2326
1da177e4
LT		 2327 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2328 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2329 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2330 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2331 priv->last_dtr_rts;
1da177e4
LT		 2332}
2333
464cbb24 2334static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2335 unsigned int set, unsigned int clear)
1da177e4 2336{
95da310e 2337 struct usb_serial_port *port = tty->driver_data;
441b62c1 2338 dbg("%s TIOCMSET", __func__);
74ede0ff 2339 return update_mctrl(port, set, clear);
1da177e4
LT		 2340}
2341
2342
464cbb24
AC		 2343static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2344 unsigned int cmd, unsigned long arg)
1da177e4 2345{
95da310e 2346 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2347 struct ftdi_private *priv = usb_get_serial_port_data(port);
2348
441b62c1 2349 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2350
2351 /* Based on code from acm.c and others */
2352 switch (cmd) {
2353
1da177e4 2354 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2355 return get_serial_info(port,
2356 (struct serial_struct __user *) arg);
1da177e4
LT		 2357
2358 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2359 return set_serial_info(tty, port,
2360 (struct serial_struct __user *) arg);
1da177e4
LT		 2361
2362 /*
2363 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2364 * - mask passed in arg for lines of interest
2365 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2366 * Caller should use TIOCGICOUNT to see which one it was.
2367 *
2368 * This code is borrowed from linux/drivers/char/serial.c
2369 */
2370 case TIOCMIWAIT:
2371 while (priv != NULL) {
2372 interruptible_sleep_on(&priv->delta_msr_wait);
2373 /* see if a signal did it */
2374 if (signal_pending(current))
2375 return -ERESTARTSYS;
2376 else {
2377 char diff = priv->diff_status;
2378
464cbb24 2379 if (diff == 0)
1da177e4 2380 return -EIO; /* no change => error */
1da177e4
LT		 2381
2382 /* Consume all events */
2383 priv->diff_status = 0;
2384
464cbb24
AC		 2385 /* Return 0 if caller wanted to know about
2386 these bits */
2387 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2388 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2389 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2390 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2391 return 0;
2392 }
2393 /*
464cbb24
AC		 2394 * Otherwise caller can't care less about what
2395 * happened,and so we continue to wait for more
2396 * events.
1da177e4
LT		 2397 */
2398 }
2399 }
95da310e 2400 return 0;
1da177e4
LT		 2401 default:
2402 break;
1da177e4 2403 }
464cbb24
AC		 2404 /* This is not necessarily an error - turns out the higher layers
2405 * will do some ioctls themselves (see comment above)
1da177e4 2406 */
441b62c1 2407 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2408 return -ENOIOCTLCMD;
2409}
1da177e4 2410
95da310e 2411static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2412{
95da310e 2413 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2414 struct ftdi_private *priv = usb_get_serial_port_data(port);
2415 unsigned long flags;
2416
441b62c1 2417 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2418
2419 spin_lock_irqsave(&priv->rx_lock, flags);
2420 priv->rx_flags |= THROTTLED;
2421 spin_unlock_irqrestore(&priv->rx_lock, flags);
2422}
2423
2424
95da310e 2425static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2426{
95da310e 2427 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2428 struct ftdi_private *priv = usb_get_serial_port_data(port);
2429 int actually_throttled;
2430 unsigned long flags;
2431
441b62c1 2432 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2433
2434 spin_lock_irqsave(&priv->rx_lock, flags);
2435 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2436 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2437 spin_unlock_irqrestore(&priv->rx_lock, flags);
2438
2439 if (actually_throttled)
c4028958 2440 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2441}
2442
464cbb24 2443static int __init ftdi_init(void)
1da177e4
LT		 2444{
2445 int retval;
2446
441b62c1 2447 dbg("%s", __func__);
fdcb0a0f
IA		 2448 if (vendor > 0 && product > 0) {
2449 /* Add user specified VID/PID to reserved element of table. */
2450 int i;
2451 for (i = 0; id_table_combined[i].idVendor; i++)
2452 ;
2453 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2454 id_table_combined[i].idVendor = vendor;
2455 id_table_combined[i].idProduct = product;
2456 }
8f977e42 2457 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2458 if (retval)
8f977e42 2459 goto failed_sio_register;
1da177e4 2460 retval = usb_register(&ftdi_driver);
5c09d144 2461 if (retval)
1da177e4
LT		 2462 goto failed_usb_register;
2463
c197a8db
GKH		 2464 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2465 DRIVER_DESC "\n");
1da177e4
LT		 2466 return 0;
2467failed_usb_register:
8f977e42
IA		 2468 usb_serial_deregister(&ftdi_sio_device);
2469failed_sio_register:
1da177e4
LT		 2470 return retval;
2471}
2472
2473
464cbb24 2474static void __exit ftdi_exit(void)
1da177e4
LT		 2475{
2476
441b62c1 2477 dbg("%s", __func__);
1da177e4 2478
464cbb24
AC		 2479 usb_deregister(&ftdi_driver);
2480 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2481
2482}
2483
2484
2485module_init(ftdi_init);
2486module_exit(ftdi_exit);
2487
464cbb24
AC		 2488MODULE_AUTHOR(DRIVER_AUTHOR);
2489MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2490MODULE_LICENSE("GPL");
2491
2492module_param(debug, bool, S_IRUGO | S_IWUSR);
2493MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2494module_param(vendor, ushort, 0);
2495MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2496 __MODULE_STRING(FTDI_VID)")");
2497module_param(product, ushort, 0);
68265043 2498MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2499
Linux 6.x block layer and io_uring tree(s)