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Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86...
[deliverable/linux.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) },
fdcb0a0f
IA		 663 { }, /* Optional parameter entry */
664 { } /* Terminating entry */
1da177e4
LT		 665};
666
464cbb24 667MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 668
669static struct usb_driver ftdi_driver = {
670 .name = "ftdi_sio",
671 .probe = usb_serial_probe,
672 .disconnect = usb_serial_disconnect,
673 .id_table = id_table_combined,
5c09d144 674 .no_dynamic_id = 1,
1da177e4
LT		 675};
676
4c4c9432 677static const char *ftdi_chip_name[] = {
1da177e4
LT		 678 [SIO] = "SIO", /* the serial part of FT8U100AX */
679 [FT8U232AM] = "FT8U232AM",
680 [FT232BM] = "FT232BM",
681 [FT2232C] = "FT2232C",
d8b21606 682 [FT232RL] = "FT232RL",
1da177e4
LT		 683};
684
685
686/* Constants for read urb and write urb */
687#define BUFSZ 512
688#define PKTSZ 64
689
690/* rx_flags */
691#define THROTTLED 0x01
692#define ACTUALLY_THROTTLED 0x02
693
1da177e4
LT		 694/* Used for TIOCMIWAIT */
695#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
696#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
697/* End TIOCMIWAIT */
698
bbc5d276
RK		 699#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
700 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 701
702/* function prototypes for a FTDI serial converter */
464cbb24
AC		 703static int ftdi_sio_probe(struct usb_serial *serial,
704 const struct usb_device_id *id);
705static void ftdi_shutdown(struct usb_serial *serial);
706static int ftdi_sio_port_probe(struct usb_serial_port *port);
707static int ftdi_sio_port_remove(struct usb_serial_port *port);
708static int ftdi_open(struct tty_struct *tty,
709 struct usb_serial_port *port, struct file *filp);
710static void ftdi_close(struct tty_struct *tty,
711 struct usb_serial_port *port, struct file *filp);
712static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
713 const unsigned char *buf, int count);
714static int ftdi_write_room(struct tty_struct *tty);
715static int ftdi_chars_in_buffer(struct tty_struct *tty);
716static void ftdi_write_bulk_callback(struct urb *urb);
717static void ftdi_read_bulk_callback(struct urb *urb);
718static void ftdi_process_read(struct work_struct *work);
719static void ftdi_set_termios(struct tty_struct *tty,
720 struct usb_serial_port *port, struct ktermios *old);
721static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
722static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
723 unsigned int set, unsigned int clear);
724static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
725 unsigned int cmd, unsigned long arg);
726static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
727static void ftdi_throttle(struct tty_struct *tty);
728static void ftdi_unthrottle(struct tty_struct *tty);
729
730static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
731static unsigned short int ftdi_232am_baud_to_divisor(int baud);
732static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
733static __u32 ftdi_232bm_baud_to_divisor(int baud);
1da177e4 734
ea65370d 735static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 736 .driver = {
737 .owner = THIS_MODULE,
269bda1c 738 .name = "ftdi_sio",
18fcac35 739 },
269bda1c 740 .description = "FTDI USB Serial Device",
d9b1b787 741 .usb_driver = &ftdi_driver ,
8f977e42 742 .id_table = id_table_combined,
1da177e4 743 .num_ports = 1,
8f977e42 744 .probe = ftdi_sio_probe,
12bdbe03
JR		 745 .port_probe = ftdi_sio_port_probe,
746 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 747 .open = ftdi_open,
748 .close = ftdi_close,
749 .throttle = ftdi_throttle,
750 .unthrottle = ftdi_unthrottle,
751 .write = ftdi_write,
752 .write_room = ftdi_write_room,
753 .chars_in_buffer = ftdi_chars_in_buffer,
754 .read_bulk_callback = ftdi_read_bulk_callback,
755 .write_bulk_callback = ftdi_write_bulk_callback,
756 .tiocmget = ftdi_tiocmget,
757 .tiocmset = ftdi_tiocmset,
758 .ioctl = ftdi_ioctl,
759 .set_termios = ftdi_set_termios,
760 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 761 .shutdown = ftdi_shutdown,
762};
763
1da177e4
LT		 764
765#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 766#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 767
768/* High and low are for DTR, RTS etc etc */
769#define HIGH 1
770#define LOW 0
771
22465400
IA		 772/* number of outstanding urbs to prevent userspace DoS from happening */
773#define URB_UPPER_LIMIT 42
774
1da177e4
LT		 775/*
776 * ***************************************************************************
fa91d43b 777 * Utility functions
1da177e4
LT		 778 * ***************************************************************************
779 */
780
781static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
782{
783 unsigned short int divisor;
464cbb24
AC		 784 /* divisor shifted 3 bits to the left */
785 int divisor3 = base / 2 / baud;
786 if ((divisor3 & 0x7) == 7)
787 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 788 divisor = divisor3 >> 3;
789 divisor3 &= 0x7;
464cbb24
AC		 790 if (divisor3 == 1)
791 divisor |= 0xc000;
792 else if (divisor3 >= 4)
793 divisor |= 0x4000;
794 else if (divisor3 != 0)
795 divisor |= 0x8000;
796 else if (divisor == 1)
797 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 798 return divisor;
799}
800
801static unsigned short int ftdi_232am_baud_to_divisor(int baud)
802{
464cbb24 803 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 804}
805
806static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
807{
808 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
809 __u32 divisor;
464cbb24
AC		 810 /* divisor shifted 3 bits to the left */
811 int divisor3 = base / 2 / baud;
1da177e4
LT		 812 divisor = divisor3 >> 3;
813 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
814 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 815 if (divisor == 1)
816 divisor = 0;
817 else if (divisor == 0x4001)
818 divisor = 1;
1da177e4
LT		 819 return divisor;
820}
821
822static __u32 ftdi_232bm_baud_to_divisor(int baud)
823{
464cbb24 824 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 825}
826
74ede0ff
IA		 827#define set_mctrl(port, set) update_mctrl((port), (set), 0)
828#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
829
464cbb24
AC		 830static int update_mctrl(struct usb_serial_port *port, unsigned int set,
831 unsigned int clear)
1da177e4
LT		 832{
833 struct ftdi_private *priv = usb_get_serial_port_data(port);
834 char *buf;
74ede0ff 835 unsigned urb_value;
1da177e4 836 int rv;
1da177e4 837
74ede0ff 838 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 839 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 840 return 0; /* no change */
841 }
1da177e4 842
1da177e4 843 buf = kmalloc(1, GFP_NOIO);
9b0f2582 844 if (!buf)
1da177e4 845 return -ENOMEM;
74ede0ff
IA		 846
847 clear &= ~set; /* 'set' takes precedence over 'clear' */
848 urb_value = 0;
849 if (clear & TIOCM_DTR)
850 urb_value |= FTDI_SIO_SET_DTR_LOW;
851 if (clear & TIOCM_RTS)
852 urb_value |= FTDI_SIO_SET_RTS_LOW;
853 if (set & TIOCM_DTR)
854 urb_value |= FTDI_SIO_SET_DTR_HIGH;
855 if (set & TIOCM_RTS)
856 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 857 rv = usb_control_msg(port->serial->dev,
858 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 859 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 860 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 861 urb_value, priv->interface,
1da177e4
LT		 862 buf, 0, WDR_TIMEOUT);
863
864 kfree(buf);
74ede0ff 865 if (rv < 0) {
43b11d33 866 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 867 __func__,
74ede0ff
IA		 868 (set & TIOCM_DTR) ? "HIGH" :
869 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
870 (set & TIOCM_RTS) ? "HIGH" :
871 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
872 } else {
441b62c1 873 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 874 (set & TIOCM_DTR) ? "HIGH" :
875 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
876 (set & TIOCM_RTS) ? "HIGH" :
877 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 878 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 879 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
880 }
1da177e4
LT		 881 return rv;
882}
883
884
464cbb24
AC		 885static __u32 get_ftdi_divisor(struct tty_struct *tty,
886 struct usb_serial_port *port)
1da177e4
LT		 887{ /* get_ftdi_divisor */
888 struct ftdi_private *priv = usb_get_serial_port_data(port);
889 __u32 div_value = 0;
890 int div_okay = 1;
891 int baud;
892
893 /*
464cbb24
AC		 894 * The logic involved in setting the baudrate can be cleanly split into
895 * 3 steps.
1da177e4 896 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 897 * 2. If these are not enough, you can set any speed using alt_speed as
898 * follows:
1da177e4
LT		 899 * - set tty->termios->c_cflag speed to B38400
900 * - set your real speed in tty->alt_speed; it gets ignored when
901 * alt_speed==0, (or)
464cbb24
AC		 902 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
903 * follows:
904 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
905 * this just sets alt_speed to (HI: 57600, VHI: 115200,
906 * SHI: 230400, WARP: 460800)
1da177e4
LT		 907 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
908 * 3. You can also set baud rate by setting custom divisor as follows
909 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 910 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
911 * follows:
1da177e4
LT		 912 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
913 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 914 * ** Step 3 is done courtesy of code borrowed from serial.c
915 * I should really spend some time and separate + move this common
916 * code to serial.c, it is replicated in nearly every serial driver
917 * you see.
1da177e4
LT		 918 */
919
464cbb24
AC		 920 /* 1. Get the baud rate from the tty settings, this observes
921 alt_speed hack */
1da177e4 922
95da310e 923 baud = tty_get_baud_rate(tty);
441b62c1 924 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 925
464cbb24
AC		 926 /* 2. Observe async-compatible custom_divisor hack, update baudrate
927 if needed */
1da177e4
LT		 928
929 if (baud == 38400 &&
930 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
931 (priv->custom_divisor)) {
932 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 933 dbg("%s - custom divisor %d sets baud rate to %d",
934 __func__, priv->custom_divisor, baud);
1da177e4
LT		 935 }
936
937 /* 3. Convert baudrate to device-specific divisor */
938
464cbb24
AC		 939 if (!baud)
940 baud = 9600;
941 switch (priv->chip_type) {
1da177e4 942 case SIO: /* SIO chip */
464cbb24 943 switch (baud) {
1da177e4
LT		 944 case 300: div_value = ftdi_sio_b300; break;
945 case 600: div_value = ftdi_sio_b600; break;
946 case 1200: div_value = ftdi_sio_b1200; break;
947 case 2400: div_value = ftdi_sio_b2400; break;
948 case 4800: div_value = ftdi_sio_b4800; break;
949 case 9600: div_value = ftdi_sio_b9600; break;
950 case 19200: div_value = ftdi_sio_b19200; break;
951 case 38400: div_value = ftdi_sio_b38400; break;
952 case 57600: div_value = ftdi_sio_b57600; break;
953 case 115200: div_value = ftdi_sio_b115200; break;
954 } /* baud */
955 if (div_value == 0) {
464cbb24
AC		 956 dbg("%s - Baudrate (%d) requested is not supported",
957 __func__, baud);
1da177e4 958 div_value = ftdi_sio_b9600;
bd5e47cc 959 baud = 9600;
1da177e4
LT		 960 div_okay = 0;
961 }
962 break;
963 case FT8U232AM: /* 8U232AM chip */
964 if (baud <= 3000000) {
965 div_value = ftdi_232am_baud_to_divisor(baud);
966 } else {
464cbb24 967 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 968 baud = 9600;
1da177e4
LT		 969 div_value = ftdi_232am_baud_to_divisor(9600);
970 div_okay = 0;
971 }
972 break;
973 case FT232BM: /* FT232BM chip */
974 case FT2232C: /* FT2232C chip */
3b009c63 975 case FT232RL:
1da177e4
LT		 976 if (baud <= 3000000) {
977 div_value = ftdi_232bm_baud_to_divisor(baud);
978 } else {
464cbb24 979 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 980 div_value = ftdi_232bm_baud_to_divisor(9600);
981 div_okay = 0;
669a6db1 982 baud = 9600;
1da177e4
LT		 983 }
984 break;
985 } /* priv->chip_type */
986
987 if (div_okay) {
988 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 989 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 990 ftdi_chip_name[priv->chip_type]);
991 }
992
95da310e 993 tty_encode_baud_rate(tty, baud, baud);
464cbb24 994 return div_value;
1da177e4
LT		 995}
996
95da310e
AC		 997static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
998{
999 struct ftdi_private *priv = usb_get_serial_port_data(port);
1000 char *buf;
464cbb24 1001 __u16 urb_value;
95da310e
AC		 1002 __u16 urb_index;
1003 __u32 urb_index_value;
1004 int rv;
1005
1006 buf = kmalloc(1, GFP_NOIO);
1007 if (!buf)
1008 return -ENOMEM;
1009
1010 urb_index_value = get_ftdi_divisor(tty, port);
1011 urb_value = (__u16)urb_index_value;
1012 urb_index = (__u16)(urb_index_value >> 16);
1013 if (priv->interface) { /* FT2232C */
1014 urb_index = (__u16)((urb_index << 8) | priv->interface);
1015 }
1016
1017 rv = usb_control_msg(port->serial->dev,
1018 usb_sndctrlpipe(port->serial->dev, 0),
1019 FTDI_SIO_SET_BAUDRATE_REQUEST,
1020 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1021 urb_value, urb_index,
1022 buf, 0, WDR_SHORT_TIMEOUT);
1023
1024 kfree(buf);
1025 return rv;
1026}
1027
1028
1da177e4 1029
464cbb24
AC		 1030static int get_serial_info(struct usb_serial_port *port,
1031 struct serial_struct __user *retinfo)
1da177e4
LT		 1032{
1033 struct ftdi_private *priv = usb_get_serial_port_data(port);
1034 struct serial_struct tmp;
1035
1036 if (!retinfo)
1037 return -EFAULT;
1038 memset(&tmp, 0, sizeof(tmp));
1039 tmp.flags = priv->flags;
1040 tmp.baud_base = priv->baud_base;
1041 tmp.custom_divisor = priv->custom_divisor;
1042 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1043 return -EFAULT;
1044 return 0;
1045} /* get_serial_info */
1046
1047
95da310e 1048static int set_serial_info(struct tty_struct *tty,
464cbb24 1049 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1050{ /* set_serial_info */
1051 struct ftdi_private *priv = usb_get_serial_port_data(port);
1052 struct serial_struct new_serial;
1053 struct ftdi_private old_priv;
1054
1055 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1056 return -EFAULT;
464cbb24 1057 old_priv = *priv;
1da177e4
LT		 1058
1059 /* Do error checking and permission checking */
1060
1061 if (!capable(CAP_SYS_ADMIN)) {
1062 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1063 (priv->flags & ~ASYNC_USR_MASK)))
1064 return -EPERM;
1065 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1066 (new_serial.flags & ASYNC_USR_MASK));
1067 priv->custom_divisor = new_serial.custom_divisor;
1068 goto check_and_exit;
1069 }
1070
1071 if ((new_serial.baud_base != priv->baud_base) &&
1072 (new_serial.baud_base < 9600))
1073 return -EINVAL;
1074
1075 /* Make the changes - these are privileged changes! */
1076
1077 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1078 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1079 priv->custom_divisor = new_serial.custom_divisor;
1080
95da310e 1081 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4
LT		 1082
1083check_and_exit:
1084 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1085 (priv->flags & ASYNC_SPD_MASK)) {
1086 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1087 tty->alt_speed = 57600;
1da177e4 1088 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1089 tty->alt_speed = 115200;
1da177e4 1090 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1091 tty->alt_speed = 230400;
1da177e4 1092 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1093 tty->alt_speed = 460800;
1da177e4 1094 else
95da310e 1095 tty->alt_speed = 0;
1da177e4
LT		 1096 }
1097 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1098 (priv->flags & ASYNC_SPD_MASK)) ||
1099 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1100 (old_priv.custom_divisor != priv->custom_divisor))) {
95da310e 1101 change_speed(tty, port);
1da177e4 1102 }
95da310e 1103 return 0;
1da177e4
LT		 1104
1105} /* set_serial_info */
1106
1107
8f977e42
IA		 1108/* Determine type of FTDI chip based on USB config and descriptor. */
1109static void ftdi_determine_type(struct usb_serial_port *port)
1110{
1111 struct ftdi_private *priv = usb_get_serial_port_data(port);
1112 struct usb_serial *serial = port->serial;
1113 struct usb_device *udev = serial->dev;
1114 unsigned version;
1115 unsigned interfaces;
1116
1117 /* Assume it is not the original SIO device for now. */
f5e09b7c 1118 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1119 priv->write_offset = 0;
1120
1121 version = le16_to_cpu(udev->descriptor.bcdDevice);
1122 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1123 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1124 version, interfaces);
1125 if (interfaces > 1) {
1126 int inter;
1127
1128 /* Multiple interfaces. Assume FT2232C. */
1129 priv->chip_type = FT2232C;
1130 /* Determine interface code. */
1131 inter = serial->interface->altsetting->desc.bInterfaceNumber;
464cbb24 1132 if (inter == 0)
8f977e42 1133 priv->interface = PIT_SIOA;
464cbb24 1134 else
8f977e42 1135 priv->interface = PIT_SIOB;
8f977e42
IA		 1136 /* BM-type devices have a bug where bcdDevice gets set
1137 * to 0x200 when iSerialNumber is 0. */
1138 if (version < 0x500) {
1139 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1140 __func__);
8f977e42
IA		 1141 }
1142 } else if (version < 0x200) {
1143 /* Old device. Assume its the original SIO. */
1144 priv->chip_type = SIO;
1145 priv->baud_base = 12000000 / 16;
1146 priv->write_offset = 1;
1147 } else if (version < 0x400) {
1148 /* Assume its an FT8U232AM (or FT8U245AM) */
1149 /* (It might be a BM because of the iSerialNumber bug,
1150 * but it will still work as an AM device.) */
1151 priv->chip_type = FT8U232AM;
3b009c63 1152 } else if (version < 0x600) {
8f977e42
IA		 1153 /* Assume its an FT232BM (or FT245BM) */
1154 priv->chip_type = FT232BM;
3b009c63
DB		 1155 } else {
1156 /* Assume its an FT232R */
1157 priv->chip_type = FT232RL;
8f977e42 1158 }
c197a8db 1159 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1160}
1161
1162
1da177e4
LT		 1163/*
1164 * ***************************************************************************
1165 * Sysfs Attribute
1166 * ***************************************************************************
1167 */
1168
464cbb24
AC		 1169static ssize_t show_latency_timer(struct device *dev,
1170 struct device_attribute *attr, char *buf)
1da177e4
LT		 1171{
1172 struct usb_serial_port *port = to_usb_serial_port(dev);
1173 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1174 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1175 unsigned short latency = 0;
1176 int rv = 0;
5c09d144 1177
5c09d144 1178
464cbb24 1179 dbg("%s", __func__);
5c09d144 1180
1da177e4
LT		 1181 rv = usb_control_msg(udev,
1182 usb_rcvctrlpipe(udev, 0),
1183 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1184 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1185 0, priv->interface,
464cbb24 1186 (char *) &latency, 1, WDR_TIMEOUT);
5c09d144 1187
1da177e4 1188 if (rv < 0) {
898eb71c 1189 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1da177e4
LT		 1190 return -EIO;
1191 }
1192 return sprintf(buf, "%i\n", latency);
1193}
1194
1195/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1196static ssize_t store_latency_timer(struct device *dev,
1197 struct device_attribute *attr, const char *valbuf,
1198 size_t count)
1da177e4
LT		 1199{
1200 struct usb_serial_port *port = to_usb_serial_port(dev);
1201 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1202 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1203 char buf[1];
1204 int v = simple_strtoul(valbuf, NULL, 10);
1205 int rv = 0;
5c09d144 1206
441b62c1 1207 dbg("%s: setting latency timer = %i", __func__, v);
5c09d144 1208
1da177e4
LT		 1209 rv = usb_control_msg(udev,
1210 usb_sndctrlpipe(udev, 0),
1211 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1212 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1213 v, priv->interface,
1da177e4 1214 buf, 0, WDR_TIMEOUT);
5c09d144 1215
1da177e4 1216 if (rv < 0) {
898eb71c 1217 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1da177e4
LT		 1218 return -EIO;
1219 }
5c09d144 1220
1da177e4
LT		 1221 return count;
1222}
1223
1224/* Write an event character directly to the FTDI register. The ASCII
1225 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1226static ssize_t store_event_char(struct device *dev,
1227 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1228{
1229 struct usb_serial_port *port = to_usb_serial_port(dev);
1230 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1231 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1232 char buf[1];
1233 int v = simple_strtoul(valbuf, NULL, 10);
1234 int rv = 0;
5c09d144 1235
441b62c1 1236 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1237
1da177e4
LT		 1238 rv = usb_control_msg(udev,
1239 usb_sndctrlpipe(udev, 0),
1240 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1241 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1242 v, priv->interface,
1da177e4 1243 buf, 0, WDR_TIMEOUT);
5c09d144 1244
1da177e4
LT		 1245 if (rv < 0) {
1246 dbg("Unable to write event character: %i", rv);
1247 return -EIO;
1248 }
5c09d144 1249
1da177e4
LT		 1250 return count;
1251}
1252
464cbb24
AC		 1253static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1254 store_latency_timer);
1da177e4
LT		 1255static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1256
12bdbe03 1257static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1258{
12bdbe03 1259 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1260 int retval = 0;
1da177e4 1261
464cbb24 1262 dbg("%s", __func__);
13f4db9e 1263
1da177e4
LT		 1264 /* XXX I've no idea if the original SIO supports the event_char
1265 * sysfs parameter, so I'm playing it safe. */
1266 if (priv->chip_type != SIO) {
1267 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1268 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1269 if ((!retval) &&
97cd49eb
SM		 1270 (priv->chip_type == FT232BM ||
1271 priv->chip_type == FT2232C ||
1272 priv->chip_type == FT232RL)) {
12bdbe03 1273 retval = device_create_file(&port->dev,
13f4db9e 1274 &dev_attr_latency_timer);
1da177e4
LT		 1275 }
1276 }
13f4db9e 1277 return retval;
1da177e4
LT		 1278}
1279
12bdbe03 1280static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1281{
12bdbe03 1282 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1283
464cbb24 1284 dbg("%s", __func__);
1da177e4 1285
1da177e4
LT		 1286 /* XXX see create_sysfs_attrs */
1287 if (priv->chip_type != SIO) {
12bdbe03 1288 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1289 if (priv->chip_type == FT232BM ||
1290 priv->chip_type == FT2232C ||
1291 priv->chip_type == FT232RL) {
12bdbe03 1292 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1293 }
1294 }
5c09d144 1295
1da177e4
LT		 1296}
1297
1298/*
1299 * ***************************************************************************
1300 * FTDI driver specific functions
1301 * ***************************************************************************
1302 */
1303
8f977e42 1304/* Probe function to check for special devices */
464cbb24
AC		 1305static int ftdi_sio_probe(struct usb_serial *serial,
1306 const struct usb_device_id *id)
8f977e42 1307{
464cbb24
AC		 1308 struct ftdi_sio_quirk *quirk =
1309 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1310
1311 if (quirk && quirk->probe) {
1312 int ret = quirk->probe(serial);
1313 if (ret != 0)
1314 return ret;
1315 }
1316
8f977e42
IA		 1317 usb_set_serial_data(serial, (void *)id->driver_info);
1318
fa91d43b 1319 return 0;
8f977e42
IA		 1320}
1321
12bdbe03 1322static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1323{
1da177e4 1324 struct ftdi_private *priv;
0ffbbe25
ON		 1325 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1326
13f4db9e 1327
464cbb24 1328 dbg("%s", __func__);
1da177e4 1329
80b6ca48 1330 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1331 if (!priv) {
194343d9 1332 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1333 sizeof(struct ftdi_private));
1da177e4
LT		 1334 return -ENOMEM;
1335 }
1da177e4
LT		 1336
1337 spin_lock_init(&priv->rx_lock);
22465400 1338 spin_lock_init(&priv->tx_lock);
464cbb24 1339 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1340 /* This will push the characters through immediately rather
1341 than queue a task to deliver them */
1342 priv->flags = ASYNC_LOW_LATENCY;
1343
0ffbbe25
ON		 1344 if (quirk && quirk->port_probe)
1345 quirk->port_probe(priv);
1346
1da177e4 1347 /* Increase the size of read buffers */
1bc3c9e1 1348 kfree(port->bulk_in_buffer);
464cbb24 1349 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1350 if (!port->bulk_in_buffer) {
464cbb24 1351 kfree(priv);
1da177e4
LT		 1352 return -ENOMEM;
1353 }
1354 if (port->read_urb) {
1355 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1356 port->read_urb->transfer_buffer_length = BUFSZ;
1357 }
1358
c4028958
DH		 1359 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1360 priv->port = port;
76854cea 1361
1da177e4
LT		 1362 /* Free port's existing write urb and transfer buffer. */
1363 if (port->write_urb) {
464cbb24 1364 usb_free_urb(port->write_urb);
1da177e4
LT		 1365 port->write_urb = NULL;
1366 }
1bc3c9e1
JJ		 1367 kfree(port->bulk_out_buffer);
1368 port->bulk_out_buffer = NULL;
1da177e4 1369
12bdbe03 1370 usb_set_serial_port_data(port, priv);
1da177e4 1371
464cbb24 1372 ftdi_determine_type(port);
12bdbe03
JR		 1373 create_sysfs_attrs(port);
1374 return 0;
1375}
1da177e4 1376
8f977e42
IA		 1377/* Setup for the USB-UIRT device, which requires hardwired
1378 * baudrate (38400 gets mapped to 312500) */
1da177e4 1379/* Called from usbserial:serial_probe */
464cbb24 1380static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1381{
464cbb24 1382 dbg("%s", __func__);
1da177e4 1383
1da177e4
LT		 1384 priv->flags |= ASYNC_SPD_CUST;
1385 priv->custom_divisor = 77;
669a6db1 1386 priv->force_baud = 38400;
8f977e42 1387} /* ftdi_USB_UIRT_setup */
1da177e4 1388
8f977e42
IA		 1389/* Setup for the HE-TIRA1 device, which requires hardwired
1390 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1391
1392static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1393{
464cbb24 1394 dbg("%s", __func__);
1da177e4 1395
1da177e4
LT		 1396 priv->flags |= ASYNC_SPD_CUST;
1397 priv->custom_divisor = 240;
669a6db1 1398 priv->force_baud = 38400;
1da177e4 1399 priv->force_rtscts = 1;
8f977e42 1400} /* ftdi_HE_TIRA1_setup */
1da177e4 1401
fa91d43b 1402/*
20734345
HW		 1403 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1404 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1405 * userspace using openocd.
fa91d43b 1406 */
20734345 1407static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1408{
1409 struct usb_device *udev = serial->dev;
1410 struct usb_interface *interface = serial->interface;
1411
464cbb24 1412 dbg("%s", __func__);
fa91d43b
TL		 1413
1414 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1415 dev_info(&udev->dev,
1416 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1417 return -ENODEV;
1418 }
1419
1420 return 0;
1421}
1da177e4 1422
546d7eec
KV		 1423/*
1424 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1425 * We have to correct it if we want to read from it.
1426 */
1427static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1428{
1429 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1430 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1431
1432 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1433 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1434 dev_info(&serial->dev->dev,
1435 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1436 }
1437
1438 return 0;
1439}
1440
5c09d144 1441/* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1da177e4
LT		 1442 * it is called when the usb device is disconnected
1443 *
1444 * usbserial:usb_serial_disconnect
1445 * calls __serial_close for each open of the port
1446 * shutdown is called then (ie ftdi_shutdown)
1447 */
464cbb24 1448static void ftdi_shutdown(struct usb_serial *serial)
12bdbe03 1449{
441b62c1 1450 dbg("%s", __func__);
12bdbe03 1451}
5c09d144 1452
12bdbe03
JR		 1453static int ftdi_sio_port_remove(struct usb_serial_port *port)
1454{
1da177e4
LT		 1455 struct ftdi_private *priv = usb_get_serial_port_data(port);
1456
441b62c1 1457 dbg("%s", __func__);
1da177e4 1458
12bdbe03 1459 remove_sysfs_attrs(port);
5c09d144
DB		 1460
1461 /* all open ports are closed at this point
464cbb24 1462 * (by usbserial.c:__serial_close, which calls ftdi_close)
1da177e4
LT		 1463 */
1464
1465 if (priv) {
1466 usb_set_serial_port_data(port, NULL);
1467 kfree(priv);
1468 }
1da177e4 1469
12bdbe03
JR		 1470 return 0;
1471}
1da177e4 1472
95da310e
AC		 1473static int ftdi_open(struct tty_struct *tty,
1474 struct usb_serial_port *port, struct file *filp)
1da177e4 1475{ /* ftdi_open */
1da177e4
LT		 1476 struct usb_device *dev = port->serial->dev;
1477 struct ftdi_private *priv = usb_get_serial_port_data(port);
1478 unsigned long flags;
5c09d144 1479
1da177e4
LT		 1480 int result = 0;
1481 char buf[1]; /* Needed for the usb_control_msg I think */
1482
441b62c1 1483 dbg("%s", __func__);
1da177e4 1484
22465400
IA		 1485 spin_lock_irqsave(&priv->tx_lock, flags);
1486 priv->tx_bytes = 0;
1487 spin_unlock_irqrestore(&priv->tx_lock, flags);
1488 spin_lock_irqsave(&priv->rx_lock, flags);
1489 priv->rx_bytes = 0;
1490 spin_unlock_irqrestore(&priv->rx_lock, flags);
1491
95da310e
AC		 1492 if (tty)
1493 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4
LT		 1494
1495 /* No error checking for this (will get errors later anyway) */
1496 /* See ftdi_sio.h for description of what is reset */
1497 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1498 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1499 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1500 priv->interface, buf, 0, WDR_TIMEOUT);
1501
1502 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1503 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1504 This is same behaviour as serial.c/rs_open() - Kuba */
1505
1506 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1507 if (tty)
1508 ftdi_set_termios(tty, port, tty->termios);
1da177e4
LT		 1509
1510 /* FIXME: Flow control might be enabled, so it should be checked -
1511 we have no control of defaults! */
1512 /* Turn on RTS and DTR since we are not flow controlling by default */
74ede0ff 1513 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 1514
1515 /* Not throttled */
1516 spin_lock_irqsave(&priv->rx_lock, flags);
1517 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1518 spin_unlock_irqrestore(&priv->rx_lock, flags);
1519
1520 /* Start reading from the device */
76854cea 1521 priv->rx_processed = 0;
1da177e4 1522 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1523 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1524 port->read_urb->transfer_buffer,
1525 port->read_urb->transfer_buffer_length,
1526 ftdi_read_bulk_callback, port);
1da177e4
LT		 1527 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1528 if (result)
194343d9
GKH		 1529 dev_err(&port->dev,
1530 "%s - failed submitting read urb, error %d\n",
1531 __func__, result);
1da177e4
LT		 1532
1533
1534 return result;
1535} /* ftdi_open */
1536
1537
1538
5c09d144 1539/*
1da177e4
LT		 1540 * usbserial:__serial_close only calls ftdi_close if the point is open
1541 *
1542 * This only gets called when it is the last close
5c09d144
DB		 1543 *
1544 *
1da177e4
LT		 1545 */
1546
95da310e
AC		 1547static void ftdi_close(struct tty_struct *tty,
1548 struct usb_serial_port *port, struct file *filp)
1da177e4 1549{ /* ftdi_close */
95da310e 1550 unsigned int c_cflag = tty->termios->c_cflag;
1da177e4
LT		 1551 struct ftdi_private *priv = usb_get_serial_port_data(port);
1552 char buf[1];
1553
441b62c1 1554 dbg("%s", __func__);
1da177e4 1555
95bef012 1556 mutex_lock(&port->serial->disc_mutex);
464cbb24 1557 if (c_cflag & HUPCL && !port->serial->disconnected) {
1da177e4 1558 /* Disable flow control */
5c09d144 1559 if (usb_control_msg(port->serial->dev,
1da177e4
LT		 1560 usb_sndctrlpipe(port->serial->dev, 0),
1561 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1562 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1563 0, priv->interface, buf, 0,
1564 WDR_TIMEOUT) < 0) {
194343d9 1565 dev_err(&port->dev, "error from flowcontrol urb\n");
5c09d144 1566 }
1da177e4 1567
74ede0ff
IA		 1568 /* drop RTS and DTR */
1569 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4 1570 } /* Note change no line if hupcl is off */
95bef012 1571 mutex_unlock(&port->serial->disc_mutex);
76854cea
IA		 1572
1573 /* cancel any scheduled reading */
1574 cancel_delayed_work(&priv->rx_work);
1575 flush_scheduled_work();
5c09d144 1576
1da177e4 1577 /* shutdown our bulk read */
794c944e 1578 usb_kill_urb(port->read_urb);
1da177e4
LT		 1579} /* ftdi_close */
1580
1581
5c09d144 1582
1da177e4
LT		 1583/* The SIO requires the first byte to have:
1584 * B0 1
1585 * B1 0
1586 * B2..7 length of message excluding byte 0
1587 *
1588 * The new devices do not require this byte
1589 */
95da310e 1590static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1591 const unsigned char *buf, int count)
1592{ /* ftdi_write */
1593 struct ftdi_private *priv = usb_get_serial_port_data(port);
1594 struct urb *urb;
1595 unsigned char *buffer;
1596 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1597 int status;
1598 int transfer_size;
22465400 1599 unsigned long flags;
1da177e4 1600
441b62c1 1601 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1602
1603 if (count == 0) {
1604 dbg("write request of 0 bytes");
1605 return 0;
1606 }
22465400
IA		 1607 spin_lock_irqsave(&priv->tx_lock, flags);
1608 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1609 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1610 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1611 return 0;
1612 }
62127a58 1613 priv->tx_outstanding_urbs++;
22465400 1614 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1615
1da177e4 1616 data_offset = priv->write_offset;
464cbb24 1617 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1618
1619 /* Determine total transfer size */
1620 transfer_size = count;
1621 if (data_offset > 0) {
1622 /* Original sio needs control bytes too... */
1623 transfer_size += (data_offset *
1624 ((count + (PKTSZ - 1 - data_offset)) /
1625 (PKTSZ - data_offset)));
1626 }
1627
464cbb24 1628 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1629 if (!buffer) {
194343d9
GKH		 1630 dev_err(&port->dev,
1631 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1632 count = -ENOMEM;
1633 goto error_no_buffer;
1da177e4
LT		 1634 }
1635
1636 urb = usb_alloc_urb(0, GFP_ATOMIC);
1637 if (!urb) {
194343d9 1638 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1639 count = -ENOMEM;
1640 goto error_no_urb;
1da177e4
LT		 1641 }
1642
1643 /* Copy data */
1644 if (data_offset > 0) {
464cbb24
AC		 1645 /* Original sio requires control byte at start of
1646 each packet. */
1da177e4
LT		 1647 int user_pktsz = PKTSZ - data_offset;
1648 int todo = count;
1649 unsigned char *first_byte = buffer;
1650 const unsigned char *current_position = buf;
1651
1652 while (todo > 0) {
464cbb24 1653 if (user_pktsz > todo)
1da177e4 1654 user_pktsz = todo;
1da177e4 1655 /* Write the control byte at the front of the packet*/
5c09d144 1656 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1657 /* Copy data for packet */
464cbb24 1658 memcpy(first_byte + data_offset,
1da177e4
LT		 1659 current_position, user_pktsz);
1660 first_byte += user_pktsz + data_offset;
1661 current_position += user_pktsz;
1662 todo -= user_pktsz;
1663 }
1664 } else {
1665 /* No control byte required. */
1666 /* Copy in the data to send */
464cbb24 1667 memcpy(buffer, buf, count);
1da177e4
LT		 1668 }
1669
464cbb24
AC		 1670 usb_serial_debug_data(debug, &port->dev, __func__,
1671 transfer_size, buffer);
1da177e4
LT		 1672
1673 /* fill the buffer and send it */
5c09d144 1674 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1675 usb_sndbulkpipe(port->serial->dev,
1676 port->bulk_out_endpointAddress),
1677 buffer, transfer_size,
1678 ftdi_write_bulk_callback, port);
1da177e4
LT		 1679
1680 status = usb_submit_urb(urb, GFP_ATOMIC);
1681 if (status) {
194343d9
GKH		 1682 dev_err(&port->dev,
1683 "%s - failed submitting write urb, error %d\n",
1684 __func__, status);
1da177e4 1685 count = status;
62127a58 1686 goto error;
22465400
IA		 1687 } else {
1688 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1689 priv->tx_outstanding_bytes += count;
1690 priv->tx_bytes += count;
1691 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1692 }
1693
1694 /* we are done with this urb, so let the host driver
1695 * really free it when it is finished with it */
62127a58 1696 usb_free_urb(urb);
1da177e4 1697
441b62c1 1698 dbg("%s write returning: %d", __func__, count);
1da177e4 1699 return count;
62127a58
ON		 1700error:
1701 usb_free_urb(urb);
1702error_no_urb:
464cbb24 1703 kfree(buffer);
62127a58
ON		 1704error_no_buffer:
1705 spin_lock_irqsave(&priv->tx_lock, flags);
1706 priv->tx_outstanding_urbs--;
1707 spin_unlock_irqrestore(&priv->tx_lock, flags);
1708 return count;
1da177e4
LT		 1709} /* ftdi_write */
1710
1711
1712/* This function may get called when the device is closed */
1713
464cbb24 1714static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1715{
22465400 1716 unsigned long flags;
cdc97792 1717 struct usb_serial_port *port = urb->context;
22465400
IA		 1718 struct ftdi_private *priv;
1719 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1720 unsigned long countback;
0fb0aa18 1721 int status = urb->status;
1da177e4
LT		 1722
1723 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1724 kfree(urb->transfer_buffer);
1da177e4 1725
441b62c1 1726 dbg("%s - port %d", __func__, port->number);
5c09d144 1727
0fb0aa18
GKH		 1728 if (status) {
1729 dbg("nonzero write bulk status received: %d", status);
1da177e4
LT		 1730 return;
1731 }
1732
22465400
IA		 1733 priv = usb_get_serial_port_data(port);
1734 if (!priv) {
441b62c1 1735 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1736 return;
1737 }
1738 /* account for transferred data */
1739 countback = urb->actual_length;
1740 data_offset = priv->write_offset;
1741 if (data_offset > 0) {
1742 /* Subtract the control bytes */
dfa5ec79 1743 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
22465400
IA		 1744 }
1745 spin_lock_irqsave(&priv->tx_lock, flags);
1746 --priv->tx_outstanding_urbs;
1747 priv->tx_outstanding_bytes -= countback;
1748 spin_unlock_irqrestore(&priv->tx_lock, flags);
1749
cf2c7481 1750 usb_serial_port_softint(port);
1da177e4
LT		 1751} /* ftdi_write_bulk_callback */
1752
1753
95da310e 1754static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1755{
95da310e 1756 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1757 struct ftdi_private *priv = usb_get_serial_port_data(port);
1758 int room;
1759 unsigned long flags;
1760
441b62c1 1761 dbg("%s - port %d", __func__, port->number);
1da177e4 1762
22465400
IA		 1763 spin_lock_irqsave(&priv->tx_lock, flags);
1764 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1765 /*
1766 * We really can take anything the user throws at us
1767 * but let's pick a nice big number to tell the tty
1768 * layer that we have lots of free space
1769 */
1770 room = 2048;
1771 } else {
1772 room = 0;
1773 }
1774 spin_unlock_irqrestore(&priv->tx_lock, flags);
1775 return room;
95da310e 1776}
1da177e4 1777
95da310e
AC		 1778static int ftdi_chars_in_buffer(struct tty_struct *tty)
1779{
1780 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1781 struct ftdi_private *priv = usb_get_serial_port_data(port);
1782 int buffered;
1783 unsigned long flags;
1784
441b62c1 1785 dbg("%s - port %d", __func__, port->number);
1da177e4 1786
22465400
IA		 1787 spin_lock_irqsave(&priv->tx_lock, flags);
1788 buffered = (int)priv->tx_outstanding_bytes;
1789 spin_unlock_irqrestore(&priv->tx_lock, flags);
1790 if (buffered < 0) {
194343d9
GKH		 1791 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1792 __func__);
22465400
IA		 1793 buffered = 0;
1794 }
1795 return buffered;
95da310e 1796}
1da177e4 1797
95da310e
AC		 1798static void ftdi_read_bulk_callback(struct urb *urb)
1799{
cdc97792 1800 struct usb_serial_port *port = urb->context;
1da177e4
LT		 1801 struct tty_struct *tty;
1802 struct ftdi_private *priv;
22465400
IA		 1803 unsigned long countread;
1804 unsigned long flags;
0fb0aa18 1805 int status = urb->status;
1da177e4
LT		 1806
1807 if (urb->number_of_packets > 0) {
194343d9
GKH		 1808 dev_err(&port->dev, "%s transfer_buffer_length %d "
1809 "actual_length %d number of packets %d\n", __func__,
1810 urb->transfer_buffer_length,
1811 urb->actual_length, urb->number_of_packets);
1812 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1813 urb->transfer_flags);
1da177e4
LT		 1814 }
1815
441b62c1 1816 dbg("%s - port %d", __func__, port->number);
1da177e4 1817
95da310e 1818 if (port->port.count <= 0)
1da177e4
LT		 1819 return;
1820
4a90f09b 1821 tty = tty_port_tty_get(&port->port);
1da177e4 1822 if (!tty) {
464cbb24 1823 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1824 return;
1825 }
1826
1827 priv = usb_get_serial_port_data(port);
1828 if (!priv) {
441b62c1 1829 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1830 goto out;
1da177e4
LT		 1831 }
1832
464cbb24 1833 if (urb != port->read_urb)
194343d9 1834 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1da177e4 1835
0fb0aa18 1836 if (status) {
464cbb24
AC		 1837 /* This will happen at close every time so it is a dbg not an
1838 err */
1839 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
4a90f09b 1840 goto out;
1da177e4
LT		 1841 }
1842
22465400
IA		 1843 /* count data bytes, but not status bytes */
1844 countread = urb->actual_length;
dfa5ec79 1845 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
22465400
IA		 1846 spin_lock_irqsave(&priv->rx_lock, flags);
1847 priv->rx_bytes += countread;
1848 spin_unlock_irqrestore(&priv->rx_lock, flags);
1849
c4028958 1850 ftdi_process_read(&priv->rx_work.work);
4a90f09b
AC		 1851out:
1852 tty_kref_put(tty);
1da177e4
LT		 1853} /* ftdi_read_bulk_callback */
1854
1855
464cbb24 1856static void ftdi_process_read(struct work_struct *work)
1da177e4 1857{ /* ftdi_process_read */
c4028958
DH		 1858 struct ftdi_private *priv =
1859 container_of(work, struct ftdi_private, rx_work.work);
1860 struct usb_serial_port *port = priv->port;
1da177e4
LT		 1861 struct urb *urb;
1862 struct tty_struct *tty;
1da177e4 1863 char error_flag;
5c09d144 1864 unsigned char *data;
1da177e4
LT		 1865
1866 int i;
1867 int result;
1868 int need_flip;
1869 int packet_offset;
76854cea 1870 unsigned long flags;
1da177e4 1871
441b62c1 1872 dbg("%s - port %d", __func__, port->number);
1da177e4 1873
95da310e 1874 if (port->port.count <= 0)
1da177e4
LT		 1875 return;
1876
4a90f09b 1877 tty = tty_port_tty_get(&port->port);
1da177e4 1878 if (!tty) {
464cbb24 1879 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1880 return;
1881 }
1882
1883 priv = usb_get_serial_port_data(port);
1884 if (!priv) {
441b62c1 1885 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1886 goto out;
1da177e4
LT		 1887 }
1888
1889 urb = port->read_urb;
1890 if (!urb) {
441b62c1 1891 dbg("%s - bad read_urb pointer - exiting", __func__);
4a90f09b 1892 goto out;
1da177e4
LT		 1893 }
1894
1895 data = urb->transfer_buffer;
1896
76854cea 1897 if (priv->rx_processed) {
441b62c1 1898 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 1899 priv->rx_processed,
1900 urb->actual_length - priv->rx_processed);
1da177e4 1901 } else {
76854cea 1902 /* The first two bytes of every read packet are status */
464cbb24
AC		 1903 if (urb->actual_length > 2)
1904 usb_serial_debug_data(debug, &port->dev, __func__,
1905 urb->actual_length, data);
1906 else
1907 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 1908 }
1da177e4
LT		 1909
1910
1911 /* TO DO -- check for hung up line and handle appropriately: */
1912 /* send hangup */
1913 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1914 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1915
1916 need_flip = 0;
464cbb24
AC		 1917 for (packet_offset = priv->rx_processed;
1918 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
76854cea
IA		 1919 int length;
1920
464cbb24
AC		 1921 /* Compare new line status to the old one, signal if different/
1922 N.B. packet may be processed more than once, but differences
1923 are only processed once. */
1da177e4 1924 if (priv != NULL) {
464cbb24
AC		 1925 char new_status = data[packet_offset + 0] &
1926 FTDI_STATUS_B0_MASK;
1da177e4 1927 if (new_status != priv->prev_status) {
464cbb24
AC		 1928 priv->diff_status |=
1929 new_status ^ priv->prev_status;
1da177e4
LT		 1930 wake_up_interruptible(&priv->delta_msr_wait);
1931 priv->prev_status = new_status;
1932 }
1933 }
1934
76854cea
IA		 1935 length = min(PKTSZ, urb->actual_length-packet_offset)-2;
1936 if (length < 0) {
194343d9
GKH		 1937 dev_err(&port->dev, "%s - bad packet length: %d\n",
1938 __func__, length+2);
76854cea
IA		 1939 length = 0;
1940 }
1941
76854cea 1942 if (priv->rx_flags & THROTTLED) {
441b62c1 1943 dbg("%s - throttled", __func__);
76854cea
IA		 1944 break;
1945 }
33f0f88f 1946 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 1947 /* break out & wait for throttling/unthrottling to
1948 happen */
441b62c1 1949 dbg("%s - receive room low", __func__);
76854cea
IA		 1950 break;
1951 }
1952
1da177e4
LT		 1953 /* Handle errors and break */
1954 error_flag = TTY_NORMAL;
464cbb24
AC		 1955 /* Although the device uses a bitmask and hence can have
1956 multiple errors on a packet - the order here sets the
1957 priority the error is returned to the tty layer */
1da177e4 1958
464cbb24 1959 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 1960 error_flag = TTY_OVERRUN;
1961 dbg("OVERRRUN error");
1962 }
464cbb24 1963 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 1964 error_flag = TTY_BREAK;
1965 dbg("BREAK received");
1966 }
464cbb24 1967 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 1968 error_flag = TTY_PARITY;
1969 dbg("PARITY error");
1970 }
464cbb24 1971 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 1972 error_flag = TTY_FRAME;
1973 dbg("FRAMING error");
1974 }
76854cea
IA		 1975 if (length > 0) {
1976 for (i = 2; i < length+2; i++) {
5c09d144 1977 /* Note that the error flag is duplicated for
1da177e4
LT		 1978 every character received since we don't know
1979 which character it applied to */
464cbb24
AC		 1980 tty_insert_flip_char(tty,
1981 data[packet_offset + i], error_flag);
1da177e4
LT		 1982 }
1983 need_flip = 1;
1984 }
1985
1986#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1987 /* if a parity error is detected you get status packets forever
1988 until a character is sent without a parity error.
464cbb24
AC		 1989 This doesn't work well since the application receives a
1990 never ending stream of bad data - even though new data
1991 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 1992 However - this might make sense for framing errors and so on
1da177e4
LT		 1993 so I am leaving the code in for now.
1994 */
1995 else {
464cbb24 1996 if (error_flag != TTY_NORMAL) {
1da177e4 1997 dbg("error_flag is not normal");
464cbb24
AC		 1998 /* In this case it is just status - if that is
1999 an error send a bad character */
2000 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 2001 tty_flip_buffer_push(tty);
1da177e4
LT		 2002 tty_insert_flip_char(tty, 0xff, error_flag);
2003 need_flip = 1;
2004 }
2005 }
2006#endif
2007 } /* "for(packet_offset=0..." */
2008
2009 /* Low latency */
464cbb24 2010 if (need_flip)
1da177e4 2011 tty_flip_buffer_push(tty);
1da177e4 2012
76854cea
IA		 2013 if (packet_offset < urb->actual_length) {
2014 /* not completely processed - record progress */
2015 priv->rx_processed = packet_offset;
2016 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2017 __func__, packet_offset,
76854cea
IA		 2018 urb->actual_length - packet_offset);
2019 /* check if we were throttled while processing */
2020 spin_lock_irqsave(&priv->rx_lock, flags);
2021 if (priv->rx_flags & THROTTLED) {
2022 priv->rx_flags |= ACTUALLY_THROTTLED;
2023 spin_unlock_irqrestore(&priv->rx_lock, flags);
2024 dbg("%s - deferring remainder until unthrottled",
441b62c1 2025 __func__);
76854cea
IA		 2026 return;
2027 }
2028 spin_unlock_irqrestore(&priv->rx_lock, flags);
2029 /* if the port is closed stop trying to read */
464cbb24 2030 if (port->port.count > 0)
76854cea
IA		 2031 /* delay processing of remainder */
2032 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2033 else
441b62c1 2034 dbg("%s - port is closed", __func__);
4a90f09b 2035 goto out;
76854cea
IA		 2036 }
2037
2038 /* urb is completely processed */
2039 priv->rx_processed = 0;
2040
1da177e4 2041 /* if the port is closed stop trying to read */
464cbb24 2042 if (port->port.count > 0) {
1da177e4 2043 /* Continue trying to always read */
5c09d144 2044 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2045 usb_rcvbulkpipe(port->serial->dev,
2046 port->bulk_in_endpointAddress),
2047 port->read_urb->transfer_buffer,
2048 port->read_urb->transfer_buffer_length,
2049 ftdi_read_bulk_callback, port);
1da177e4
LT		 2050
2051 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2052 if (result)
194343d9
GKH		 2053 dev_err(&port->dev,
2054 "%s - failed resubmitting read urb, error %d\n",
2055 __func__, result);
1da177e4 2056 }
4a90f09b
AC		 2057out:
2058 tty_kref_put(tty);
1da177e4
LT		 2059} /* ftdi_process_read */
2060
2061
95da310e 2062static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2063{
95da310e 2064 struct usb_serial_port *port = tty->driver_data;
1da177e4 2065 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2066 __u16 urb_value = 0;
1da177e4 2067 char buf[1];
5c09d144 2068
1da177e4
LT		 2069 /* break_state = -1 to turn on break, and 0 to turn off break */
2070 /* see drivers/char/tty_io.c to see it used */
2071 /* last_set_data_urb_value NEVER has the break bit set in it */
2072
464cbb24 2073 if (break_state)
1da177e4 2074 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2075 else
5c09d144 2076 urb_value = priv->last_set_data_urb_value;
5c09d144 2077
464cbb24
AC		 2078 if (usb_control_msg(port->serial->dev,
2079 usb_sndctrlpipe(port->serial->dev, 0),
2080 FTDI_SIO_SET_DATA_REQUEST,
2081 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2082 urb_value , priv->interface,
2083 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2084 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2085 "(state was %d)\n", __func__, break_state);
5c09d144 2086 }
1da177e4 2087
464cbb24
AC		 2088 dbg("%s break state is %d - urb is %d", __func__,
2089 break_state, urb_value);
5c09d144 2090
1da177e4
LT		 2091}
2092
2093
2094/* old_termios contains the original termios settings and tty->termios contains
2095 * the new setting to be used
2096 * WARNING: set_termios calls this with old_termios in kernel space
2097 */
2098
95da310e
AC		 2099static void ftdi_set_termios(struct tty_struct *tty,
2100 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2101{ /* ftdi_termios */
2102 struct usb_device *dev = port->serial->dev;
1da177e4 2103 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2104 struct ktermios *termios = tty->termios;
669a6db1 2105 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2106 __u16 urb_value; /* will hold the new flags */
2107 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2108
464cbb24 2109 /* Added for xon/xoff support */
669a6db1 2110 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2111 unsigned char vstop;
2112 unsigned char vstart;
5c09d144 2113
441b62c1 2114 dbg("%s", __func__);
1da177e4 2115
464cbb24
AC		 2116 /* Force baud rate if this device requires it, unless it is set to
2117 B0. */
669a6db1 2118 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2119 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2120 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2121 priv->force_baud);
1da177e4
LT		 2122 }
2123
2124 /* Force RTS-CTS if this device requires it. */
2125 if (priv->force_rtscts) {
441b62c1 2126 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2127 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2128 }
2129
669a6db1 2130 cflag = termios->c_cflag;
1da177e4 2131
5c09d144
DB		 2132 /* FIXME -For this cut I don't care if the line is really changing or
2133 not - so just do the change regardless - should be able to
1da177e4 2134 compare old_termios and tty->termios */
5c09d144 2135 /* NOTE These routines can get interrupted by
464cbb24
AC		 2136 ftdi_sio_read_bulk_callback - need to examine what this means -
2137 don't see any problems yet */
5c09d144 2138
1da177e4 2139 /* Set number of data bits, parity, stop bits */
5c09d144 2140
669a6db1
AC		 2141 termios->c_cflag &= ~CMSPAR;
2142
1da177e4
LT		 2143 urb_value = 0;
2144 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2145 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2146 urb_value |= (cflag & PARENB ?
2147 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2148 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2149 FTDI_SIO_SET_DATA_PARITY_NONE);
2150 if (cflag & CSIZE) {
2151 switch (cflag & CSIZE) {
2152 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2153 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2154 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2155 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2156 default:
194343d9 2157 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2158 }
2159 }
2160
464cbb24
AC		 2161 /* This is needed by the break command since it uses the same command
2162 - but is or'ed with this value */
1da177e4 2163 priv->last_set_data_urb_value = urb_value;
5c09d144 2164
1da177e4 2165 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2166 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2167 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2168 urb_value , priv->interface,
279e1545 2169 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2170 dev_err(&port->dev, "%s FAILED to set "
2171 "databits/stopbits/parity\n", __func__);
5c09d144 2172 }
1da177e4
LT		 2173
2174 /* Now do the baudrate */
464cbb24 2175 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2176 /* Disable flow control */
2177 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2178 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2179 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2180 0, priv->interface,
1da177e4 2181 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2182 dev_err(&port->dev,
2183 "%s error from disable flowcontrol urb\n",
2184 __func__);
5c09d144 2185 }
1da177e4 2186 /* Drop RTS and DTR */
74ede0ff 2187 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2188 } else {
2189 /* set the baudrate determined before */
464cbb24 2190 if (change_speed(tty, port))
194343d9
GKH		 2191 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2192 __func__);
72a755fc 2193 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2194 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2195 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2196 }
2197
2198 /* Set flow control */
2199 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2200 if (cflag & CRTSCTS) {
441b62c1 2201 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2202 if (usb_control_msg(dev,
1da177e4 2203 usb_sndctrlpipe(dev, 0),
5c09d144 2204 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2205 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2206 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2207 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2208 dev_err(&port->dev,
2209 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2210 }
2211
2212 } else {
1da177e4
LT		 2213 /*
2214 * Xon/Xoff code
2215 *
464cbb24
AC		 2216 * Check the IXOFF status in the iflag component of the
2217 * termios structure. If IXOFF is not set, the pre-xon/xoff
2218 * code is executed.
2219 */
1da177e4 2220 if (iflag & IXOFF) {
464cbb24
AC		 2221 dbg("%s request to enable xonxoff iflag=%04x",
2222 __func__, iflag);
2223 /* Try to enable the XON/XOFF on the ftdi_sio
2224 * Set the vstart and vstop -- could have been done up
2225 * above where a lot of other dereferencing is done but
2226 * that would be very inefficient as vstart and vstop
2227 * are not always needed.
2228 */
669a6db1
AC		 2229 vstart = termios->c_cc[VSTART];
2230 vstop = termios->c_cc[VSTOP];
464cbb24 2231 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2232
2233 if (usb_control_msg(dev,
2234 usb_sndctrlpipe(dev, 0),
2235 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2236 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2237 urb_value , (FTDI_SIO_XON_XOFF_HS
2238 | priv->interface),
2239 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2240 dev_err(&port->dev, "urb failed to set to "
2241 "xon/xoff flow control\n");
1da177e4
LT		 2242 }
2243 } else {
464cbb24
AC		 2244 /* else clause to only run if cflag ! CRTSCTS and iflag
2245 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2246 * stack - not by device */
441b62c1 2247 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2248 if (usb_control_msg(dev,
1da177e4 2249 usb_sndctrlpipe(dev, 0),
5c09d144 2250 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2251 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2252 0, priv->interface,
1da177e4 2253 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2254 dev_err(&port->dev,
2255 "urb failed to clear flow control\n");
5c09d144 2256 }
1da177e4 2257 }
5c09d144 2258
1da177e4
LT		 2259 }
2260 return;
95da310e 2261}
1da177e4 2262
95da310e 2263static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2264{
95da310e 2265 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2266 struct ftdi_private *priv = usb_get_serial_port_data(port);
2267 unsigned char buf[2];
2268 int ret;
2269
441b62c1 2270 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2271 switch (priv->chip_type) {
2272 case SIO:
2273 /* Request the status from the device */
464cbb24
AC		 2274 ret = usb_control_msg(port->serial->dev,
2275 usb_rcvctrlpipe(port->serial->dev, 0),
2276 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2277 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2278 0, 0,
2279 buf, 1, WDR_TIMEOUT);
2280 if (ret < 0) {
43b11d33 2281 dbg("%s Could not get modem status of device - err: %d", __func__,
1da177e4 2282 ret);
464cbb24 2283 return ret;
1da177e4
LT		 2284 }
2285 break;
2286 case FT8U232AM:
2287 case FT232BM:
2288 case FT2232C:
ed6e5282 2289 case FT232RL:
464cbb24
AC		 2290 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2291 value) - in the same format as the data returned from the in
2292 point */
2293 ret = usb_control_msg(port->serial->dev,
2294 usb_rcvctrlpipe(port->serial->dev, 0),
2295 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2296 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2297 0, priv->interface,
2298 buf, 2, WDR_TIMEOUT);
2299 if (ret < 0) {
43b11d33 2300 dbg("%s Could not get modem status of device - err: %d", __func__,
1da177e4 2301 ret);
464cbb24 2302 return ret;
1da177e4
LT		 2303 }
2304 break;
2305 default:
2306 return -EFAULT;
2307 break;
2308 }
5c09d144 2309
1da177e4
LT		 2310 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2311 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2312 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2313 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2314 priv->last_dtr_rts;
1da177e4
LT		 2315}
2316
464cbb24 2317static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2318 unsigned int set, unsigned int clear)
1da177e4 2319{
95da310e 2320 struct usb_serial_port *port = tty->driver_data;
441b62c1 2321 dbg("%s TIOCMSET", __func__);
74ede0ff 2322 return update_mctrl(port, set, clear);
1da177e4
LT		 2323}
2324
2325
464cbb24
AC		 2326static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2327 unsigned int cmd, unsigned long arg)
1da177e4 2328{
95da310e 2329 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2330 struct ftdi_private *priv = usb_get_serial_port_data(port);
2331
441b62c1 2332 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2333
2334 /* Based on code from acm.c and others */
2335 switch (cmd) {
2336
1da177e4 2337 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2338 return get_serial_info(port,
2339 (struct serial_struct __user *) arg);
1da177e4
LT		 2340
2341 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2342 return set_serial_info(tty, port,
2343 (struct serial_struct __user *) arg);
1da177e4
LT		 2344
2345 /*
2346 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2347 * - mask passed in arg for lines of interest
2348 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2349 * Caller should use TIOCGICOUNT to see which one it was.
2350 *
2351 * This code is borrowed from linux/drivers/char/serial.c
2352 */
2353 case TIOCMIWAIT:
2354 while (priv != NULL) {
2355 interruptible_sleep_on(&priv->delta_msr_wait);
2356 /* see if a signal did it */
2357 if (signal_pending(current))
2358 return -ERESTARTSYS;
2359 else {
2360 char diff = priv->diff_status;
2361
464cbb24 2362 if (diff == 0)
1da177e4 2363 return -EIO; /* no change => error */
1da177e4
LT		 2364
2365 /* Consume all events */
2366 priv->diff_status = 0;
2367
464cbb24
AC		 2368 /* Return 0 if caller wanted to know about
2369 these bits */
2370 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2371 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2372 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2373 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2374 return 0;
2375 }
2376 /*
464cbb24
AC		 2377 * Otherwise caller can't care less about what
2378 * happened,and so we continue to wait for more
2379 * events.
1da177e4
LT		 2380 */
2381 }
2382 }
95da310e 2383 return 0;
1da177e4
LT		 2384 default:
2385 break;
1da177e4 2386 }
464cbb24
AC		 2387 /* This is not necessarily an error - turns out the higher layers
2388 * will do some ioctls themselves (see comment above)
1da177e4 2389 */
441b62c1 2390 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2391 return -ENOIOCTLCMD;
2392}
1da177e4 2393
95da310e 2394static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2395{
95da310e 2396 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2397 struct ftdi_private *priv = usb_get_serial_port_data(port);
2398 unsigned long flags;
2399
441b62c1 2400 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2401
2402 spin_lock_irqsave(&priv->rx_lock, flags);
2403 priv->rx_flags |= THROTTLED;
2404 spin_unlock_irqrestore(&priv->rx_lock, flags);
2405}
2406
2407
95da310e 2408static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2409{
95da310e 2410 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2411 struct ftdi_private *priv = usb_get_serial_port_data(port);
2412 int actually_throttled;
2413 unsigned long flags;
2414
441b62c1 2415 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2416
2417 spin_lock_irqsave(&priv->rx_lock, flags);
2418 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2419 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2420 spin_unlock_irqrestore(&priv->rx_lock, flags);
2421
2422 if (actually_throttled)
c4028958 2423 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2424}
2425
464cbb24 2426static int __init ftdi_init(void)
1da177e4
LT		 2427{
2428 int retval;
2429
441b62c1 2430 dbg("%s", __func__);
fdcb0a0f
IA		 2431 if (vendor > 0 && product > 0) {
2432 /* Add user specified VID/PID to reserved element of table. */
2433 int i;
2434 for (i = 0; id_table_combined[i].idVendor; i++)
2435 ;
2436 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2437 id_table_combined[i].idVendor = vendor;
2438 id_table_combined[i].idProduct = product;
2439 }
8f977e42 2440 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2441 if (retval)
8f977e42 2442 goto failed_sio_register;
1da177e4 2443 retval = usb_register(&ftdi_driver);
5c09d144 2444 if (retval)
1da177e4
LT		 2445 goto failed_usb_register;
2446
c197a8db
GKH		 2447 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2448 DRIVER_DESC "\n");
1da177e4
LT		 2449 return 0;
2450failed_usb_register:
8f977e42
IA		 2451 usb_serial_deregister(&ftdi_sio_device);
2452failed_sio_register:
1da177e4
LT		 2453 return retval;
2454}
2455
2456
464cbb24 2457static void __exit ftdi_exit(void)
1da177e4
LT		 2458{
2459
441b62c1 2460 dbg("%s", __func__);
1da177e4 2461
464cbb24
AC		 2462 usb_deregister(&ftdi_driver);
2463 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2464
2465}
2466
2467
2468module_init(ftdi_init);
2469module_exit(ftdi_exit);
2470
464cbb24
AC		 2471MODULE_AUTHOR(DRIVER_AUTHOR);
2472MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2473MODULE_LICENSE("GPL");
2474
2475module_param(debug, bool, S_IRUGO | S_IWUSR);
2476MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2477module_param(vendor, ushort, 0);
2478MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2479 __MODULE_STRING(FTDI_VID)")");
2480module_param(product, ushort, 0);
68265043 2481MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2482
Linux kernel - Deliverables
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