]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/usb/serial/ftdi_sio.c
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
USB: ftdi_sio: fix error message on close
[net-next-2.6.git] / drivers / usb / serial / ftdi_sio.c
CommitLineData
1da177e4
LT		 1/*
2 * USB FTDI SIO driver
3 *
5c09d144
DB		 4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
1da177e4
LT		 6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
5c09d144
DB		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
1da177e4 14 *
464cbb24
AC		 15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
1da177e4
LT		 17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
504b55cc
GKH		 21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 23 *
24 */
25
26/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27/* Thanx to FTDI for so kindly providing details of the protocol required */
28/* to talk to the device */
464cbb24
AC		 29/* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
1da177e4 31
1da177e4
LT		 32#include <linux/kernel.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/slab.h>
405f5571 36#include <linux/smp_lock.h>
1da177e4
LT		 37#include <linux/tty.h>
38#include <linux/tty_driver.h>
39#include <linux/tty_flip.h>
40#include <linux/module.h>
41#include <linux/spinlock.h>
464cbb24 42#include <linux/uaccess.h>
1da177e4
LT		 43#include <linux/usb.h>
44#include <linux/serial.h>
a969888c 45#include <linux/usb/serial.h>
1da177e4 46#include "ftdi_sio.h"
31844d55 47#include "ftdi_sio_ids.h"
1da177e4
LT		 48
49/*
50 * Version Information
51 */
094c2e6d 52#define DRIVER_VERSION "v1.5.0"
65e1ec67 53#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr"
1da177e4
LT		 54#define DRIVER_DESC "USB FTDI Serial Converters Driver"
55
56static int debug;
fdcb0a0f
IA		 57static __u16 vendor = FTDI_VID;
58static __u16 product;
1da177e4 59
0ffbbe25 60struct ftdi_private {
c45d6320 61 struct kref kref;
0ffbbe25 62 ftdi_chip_type_t chip_type;
464cbb24 63 /* type of device, either SIO or FT8U232AM */
0ffbbe25 64 int baud_base; /* baud base clock for divisor setting */
464cbb24
AC		 65 int custom_divisor; /* custom_divisor kludge, this is for
66 baud_base (different from what goes to the
67 chip!) */
0ffbbe25 68 __u16 last_set_data_urb_value ;
464cbb24
AC		 69 /* the last data state set - needed for doing
70 * a break
71 */
72 int write_offset; /* This is the offset in the usb data block to
73 * write the serial data - it varies between
74 * devices
0ffbbe25
ON		 75 */
76 int flags; /* some ASYNC_xxxx flags are supported */
77 unsigned long last_dtr_rts; /* saved modem control outputs */
464cbb24 78 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
0ffbbe25 79 char prev_status, diff_status; /* Used for TIOCMIWAIT */
0ffbbe25 80 struct usb_serial_port *port;
094c2e6d
MA		 81 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface
82 (0 for FT232/245) */
0ffbbe25 83
464cbb24
AC		 84 speed_t force_baud; /* if non-zero, force the baud rate to
85 this value */
86 int force_rtscts; /* if non-zero, force RTS-CTS to always
87 be enabled */
0ffbbe25 88
557aaa7f 89 unsigned int latency; /* latency setting in use */
0ffbbe25
ON		 90 spinlock_t tx_lock; /* spinlock for transmit state */
91 unsigned long tx_bytes;
92 unsigned long tx_outstanding_bytes;
93 unsigned long tx_outstanding_urbs;
895f28ba 94 unsigned short max_packet_size;
0ffbbe25
ON		 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);
b760dac2 106static int ftdi_NDI_device_setup(struct usb_serial *serial);
464cbb24
AC		 107static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
108static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 109
20734345
HW		 110static struct ftdi_sio_quirk ftdi_jtag_quirk = {
111 .probe = ftdi_jtag_probe,
fa91d43b
TL		 112};
113
546d7eec
KV		 114static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
115 .probe = ftdi_mtxorb_hack_setup,
116};
117
b760dac2
MG		 118static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
119 .probe = ftdi_NDI_device_setup,
120};
121
8f977e42 122static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 123 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 124};
125
126static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 127 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 128};
129
130/*
131 * The 8U232AM has the same API as the sio except for:
132 * - it can support MUCH higher baudrates; up to:
133 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
134 * o 230400 at 12MHz
135 * so .. 8U232AM's baudrate setting codes are different
136 * - it has a two byte status code.
137 * - it returns characters every 16ms (the FTDI does it every 40ms)
138 *
139 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
140 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
141 * combinations in both tables.
8f977e42
IA		 142 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
143 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 144 */
145
146
1da177e4 147
65e1ec67
AM		 148/*
149 * Device ID not listed? Test via module params product/vendor or
150 * /sys/bus/usb/ftdi_sio/new_id, then send patch/report!
151 */
1da177e4 152static struct usb_device_id id_table_combined [] = {
2011e924
JD		 153 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
01ba0856 155 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
65e1ec67 156 { USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) },
6e1ab3ed
PM		 157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 165 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 166 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 167 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 168 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 169 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 170 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 173 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 174 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
094c2e6d 175 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
c0f8d561 176 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 177 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 178 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
ec3815c3 179 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
1da177e4
LT		 182 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
183 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
f2ee6955 184 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
1da177e4
LT		 185 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
191 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
193 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
194 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
195 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
198 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
199 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
200 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
201 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
202 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
b34efeea 203 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
464cbb24
AC		 204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 244 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 250 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 290 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 292 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 294 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 296 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 298 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 300 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
463 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
464 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
465 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
466 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
467 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 468 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 469 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 470 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 471 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
514 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
515 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
516 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
517 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
518 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
519 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
520 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 521 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
522 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
523 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
524 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 525 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
526 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
527 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
528 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 545 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 546 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 547 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 549 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 550 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 551 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 559 /*
65e1ec67 560 * ELV devices:
e6ac4a40 561 */
65e1ec67
AM		 562 { USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
42f8aa94
PS		 570 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
578 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
579 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
580 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
581 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
582 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
583 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
584 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
585 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
65e1ec67 586 { USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
42f8aa94 587 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
65e1ec67 588 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
42f8aa94 589 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 590 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 591 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 592 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
65e1ec67
AM		 593 { USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
594 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
595 { USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
596 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
5c09d144
DB		 597 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
598 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
599 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
600 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
601 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
603 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 604 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
9d37ff64
JC		 605 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
607 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
1da177e4
LT		 608 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
609 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
610 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
611 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 612 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 613 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
c3d36c45 614 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
ef31fec0 615 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 616 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 617 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
618 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
619 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
a8cbd90a
CB		 620 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
621 { USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
622 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
623 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
624 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
625 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
626 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
627 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
628 { USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
629 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
630 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
631 { USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
632 { USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
633 { USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
1da177e4 634 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 635 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
636 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 637 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
638 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
639 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
640 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
641 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
642 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
643 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
644 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 645 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 646 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 647 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
648 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 649 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
650 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 651 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
652 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
653 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
654 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 655 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
656 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 657 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 658 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
659 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 660 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
661 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 662 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 663 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 664 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 665 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 666 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
667 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 668 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 669 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 670 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 671 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
672 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 673 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 674 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 675 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 676 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 677 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 678 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 679 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 680 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 681 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 682 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 683 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
684 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
685 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 686 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
b760dac2
MG		 687 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
688 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
689 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
690 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
691 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
692 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
693 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
694 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
695 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
696 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
822c7ef4 697 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 698 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 699 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 700 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 701 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 702 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 703 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 704 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
705 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
706 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
707 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
708 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 709 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
710 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
711 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
712 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
14511412
KH		 713 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
714 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 715 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 716 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 717 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
a7787e50 718 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
96285cb8
GC		 719 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
720 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 721 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 722 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
7f82b6dd
AW		 723 { USB_DEVICE(ATMEL_VID, STK541_PID) },
724 { USB_DEVICE(DE_VID, STB_PID) },
725 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 726 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
727 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
11eaf170
MH		 728 { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
729 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 730 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 731 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
732 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
d46130ab 733 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
fca4404c 734 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
c47aacc6 735 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
50d0678e
DV		 736 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
737 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
e7d7fcc0
PL		 738 { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
739 { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
fdcb0a0f
IA		 740 { }, /* Optional parameter entry */
741 { } /* Terminating entry */
1da177e4
LT		 742};
743
464cbb24 744MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 745
746static struct usb_driver ftdi_driver = {
747 .name = "ftdi_sio",
748 .probe = usb_serial_probe,
749 .disconnect = usb_serial_disconnect,
750 .id_table = id_table_combined,
5c09d144 751 .no_dynamic_id = 1,
1da177e4
LT		 752};
753
4c4c9432 754static const char *ftdi_chip_name[] = {
1da177e4
LT		 755 [SIO] = "SIO", /* the serial part of FT8U100AX */
756 [FT8U232AM] = "FT8U232AM",
757 [FT232BM] = "FT232BM",
758 [FT2232C] = "FT2232C",
d8b21606 759 [FT232RL] = "FT232RL",
094c2e6d
MA		 760 [FT2232H] = "FT2232H",
761 [FT4232H] = "FT4232H"
1da177e4
LT		 762};
763
764
765/* Constants for read urb and write urb */
766#define BUFSZ 512
1da177e4 767
1da177e4
LT		 768/* Used for TIOCMIWAIT */
769#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
770#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
771/* End TIOCMIWAIT */
772
bbc5d276
RK		 773#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
774 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 775
776/* function prototypes for a FTDI serial converter */
464cbb24
AC		 777static int ftdi_sio_probe(struct usb_serial *serial,
778 const struct usb_device_id *id);
464cbb24
AC		 779static int ftdi_sio_port_probe(struct usb_serial_port *port);
780static int ftdi_sio_port_remove(struct usb_serial_port *port);
a509a7e4 781static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
335f8514
AC		 782static void ftdi_close(struct usb_serial_port *port);
783static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 784static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
785 const unsigned char *buf, int count);
786static int ftdi_write_room(struct tty_struct *tty);
787static int ftdi_chars_in_buffer(struct tty_struct *tty);
788static void ftdi_write_bulk_callback(struct urb *urb);
789static void ftdi_read_bulk_callback(struct urb *urb);
cc01f17d 790static void ftdi_process_read(struct usb_serial_port *port);
464cbb24
AC		 791static void ftdi_set_termios(struct tty_struct *tty,
792 struct usb_serial_port *port, struct ktermios *old);
793static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
794static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
795 unsigned int set, unsigned int clear);
796static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
797 unsigned int cmd, unsigned long arg);
798static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
799static void ftdi_throttle(struct tty_struct *tty);
800static void ftdi_unthrottle(struct tty_struct *tty);
801
802static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
803static unsigned short int ftdi_232am_baud_to_divisor(int baud);
804static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
805static __u32 ftdi_232bm_baud_to_divisor(int baud);
094c2e6d
MA		 806static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
807static __u32 ftdi_2232h_baud_to_divisor(int baud);
1da177e4 808
ea65370d 809static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 810 .driver = {
811 .owner = THIS_MODULE,
269bda1c 812 .name = "ftdi_sio",
18fcac35 813 },
269bda1c 814 .description = "FTDI USB Serial Device",
d9b1b787 815 .usb_driver = &ftdi_driver ,
8f977e42 816 .id_table = id_table_combined,
1da177e4 817 .num_ports = 1,
8f977e42 818 .probe = ftdi_sio_probe,
12bdbe03
JR		 819 .port_probe = ftdi_sio_port_probe,
820 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 821 .open = ftdi_open,
822 .close = ftdi_close,
335f8514 823 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 824 .throttle = ftdi_throttle,
825 .unthrottle = ftdi_unthrottle,
826 .write = ftdi_write,
827 .write_room = ftdi_write_room,
828 .chars_in_buffer = ftdi_chars_in_buffer,
829 .read_bulk_callback = ftdi_read_bulk_callback,
830 .write_bulk_callback = ftdi_write_bulk_callback,
831 .tiocmget = ftdi_tiocmget,
832 .tiocmset = ftdi_tiocmset,
833 .ioctl = ftdi_ioctl,
834 .set_termios = ftdi_set_termios,
835 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 836};
837
1da177e4
LT		 838
839#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 840#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 841
842/* High and low are for DTR, RTS etc etc */
843#define HIGH 1
844#define LOW 0
845
22465400
IA		 846/* number of outstanding urbs to prevent userspace DoS from happening */
847#define URB_UPPER_LIMIT 42
848
1da177e4
LT		 849/*
850 * ***************************************************************************
fa91d43b 851 * Utility functions
1da177e4
LT		 852 * ***************************************************************************
853 */
854
855static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
856{
857 unsigned short int divisor;
464cbb24
AC		 858 /* divisor shifted 3 bits to the left */
859 int divisor3 = base / 2 / baud;
860 if ((divisor3 & 0x7) == 7)
861 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 862 divisor = divisor3 >> 3;
863 divisor3 &= 0x7;
464cbb24
AC		 864 if (divisor3 == 1)
865 divisor |= 0xc000;
866 else if (divisor3 >= 4)
867 divisor |= 0x4000;
868 else if (divisor3 != 0)
869 divisor |= 0x8000;
870 else if (divisor == 1)
871 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 872 return divisor;
873}
874
875static unsigned short int ftdi_232am_baud_to_divisor(int baud)
876{
464cbb24 877 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 878}
879
880static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
881{
882 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
883 __u32 divisor;
464cbb24
AC		 884 /* divisor shifted 3 bits to the left */
885 int divisor3 = base / 2 / baud;
1da177e4
LT		 886 divisor = divisor3 >> 3;
887 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
888 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 889 if (divisor == 1)
890 divisor = 0;
891 else if (divisor == 0x4001)
892 divisor = 1;
1da177e4
LT		 893 return divisor;
894}
895
896static __u32 ftdi_232bm_baud_to_divisor(int baud)
897{
464cbb24 898 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 899}
900
094c2e6d
MA		 901static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
902{
903 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
904 __u32 divisor;
905 int divisor3;
906
907 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
908 divisor3 = (base / 10 / baud) * 8;
909
910 divisor = divisor3 >> 3;
911 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
912 /* Deal with special cases for highest baud rates. */
913 if (divisor == 1)
914 divisor = 0;
915 else if (divisor == 0x4001)
916 divisor = 1;
917 /*
918 * Set this bit to turn off a divide by 2.5 on baud rate generator
919 * This enables baud rates up to 12Mbaud but cannot reach below 1200
920 * baud with this bit set
921 */
922 divisor |= 0x00020000;
923 return divisor;
924}
925
926static __u32 ftdi_2232h_baud_to_divisor(int baud)
927{
928 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
929}
930
74ede0ff
IA		 931#define set_mctrl(port, set) update_mctrl((port), (set), 0)
932#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
933
464cbb24
AC		 934static int update_mctrl(struct usb_serial_port *port, unsigned int set,
935 unsigned int clear)
1da177e4
LT		 936{
937 struct ftdi_private *priv = usb_get_serial_port_data(port);
938 char *buf;
74ede0ff 939 unsigned urb_value;
1da177e4 940 int rv;
1da177e4 941
74ede0ff 942 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 943 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 944 return 0; /* no change */
945 }
1da177e4 946
1da177e4 947 buf = kmalloc(1, GFP_NOIO);
9b0f2582 948 if (!buf)
1da177e4 949 return -ENOMEM;
74ede0ff
IA		 950
951 clear &= ~set; /* 'set' takes precedence over 'clear' */
952 urb_value = 0;
953 if (clear & TIOCM_DTR)
954 urb_value |= FTDI_SIO_SET_DTR_LOW;
955 if (clear & TIOCM_RTS)
956 urb_value |= FTDI_SIO_SET_RTS_LOW;
957 if (set & TIOCM_DTR)
958 urb_value |= FTDI_SIO_SET_DTR_HIGH;
959 if (set & TIOCM_RTS)
960 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 961 rv = usb_control_msg(port->serial->dev,
962 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 963 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 964 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 965 urb_value, priv->interface,
1da177e4
LT		 966 buf, 0, WDR_TIMEOUT);
967
968 kfree(buf);
74ede0ff 969 if (rv < 0) {
43b11d33 970 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 971 __func__,
74ede0ff
IA		 972 (set & TIOCM_DTR) ? "HIGH" :
973 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
974 (set & TIOCM_RTS) ? "HIGH" :
975 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
976 } else {
441b62c1 977 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 978 (set & TIOCM_DTR) ? "HIGH" :
979 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
980 (set & TIOCM_RTS) ? "HIGH" :
981 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 982 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 983 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
984 }
1da177e4
LT		 985 return rv;
986}
987
988
464cbb24
AC		 989static __u32 get_ftdi_divisor(struct tty_struct *tty,
990 struct usb_serial_port *port)
1da177e4
LT		 991{ /* get_ftdi_divisor */
992 struct ftdi_private *priv = usb_get_serial_port_data(port);
993 __u32 div_value = 0;
994 int div_okay = 1;
995 int baud;
996
997 /*
464cbb24
AC		 998 * The logic involved in setting the baudrate can be cleanly split into
999 * 3 steps.
1da177e4 1000 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 1001 * 2. If these are not enough, you can set any speed using alt_speed as
1002 * follows:
1da177e4
LT		 1003 * - set tty->termios->c_cflag speed to B38400
1004 * - set your real speed in tty->alt_speed; it gets ignored when
1005 * alt_speed==0, (or)
464cbb24
AC		 1006 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1007 * follows:
1008 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1009 * this just sets alt_speed to (HI: 57600, VHI: 115200,
1010 * SHI: 230400, WARP: 460800)
1da177e4
LT		 1011 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1012 * 3. You can also set baud rate by setting custom divisor as follows
1013 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 1014 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1015 * follows:
1da177e4
LT		 1016 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1017 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 1018 * ** Step 3 is done courtesy of code borrowed from serial.c
1019 * I should really spend some time and separate + move this common
1020 * code to serial.c, it is replicated in nearly every serial driver
1021 * you see.
1da177e4
LT		 1022 */
1023
464cbb24
AC		 1024 /* 1. Get the baud rate from the tty settings, this observes
1025 alt_speed hack */
1da177e4 1026
95da310e 1027 baud = tty_get_baud_rate(tty);
441b62c1 1028 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 1029
464cbb24
AC		 1030 /* 2. Observe async-compatible custom_divisor hack, update baudrate
1031 if needed */
1da177e4
LT		 1032
1033 if (baud == 38400 &&
1034 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1035 (priv->custom_divisor)) {
1036 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 1037 dbg("%s - custom divisor %d sets baud rate to %d",
1038 __func__, priv->custom_divisor, baud);
1da177e4
LT		 1039 }
1040
1041 /* 3. Convert baudrate to device-specific divisor */
1042
464cbb24
AC		 1043 if (!baud)
1044 baud = 9600;
1045 switch (priv->chip_type) {
1da177e4 1046 case SIO: /* SIO chip */
464cbb24 1047 switch (baud) {
1da177e4
LT		 1048 case 300: div_value = ftdi_sio_b300; break;
1049 case 600: div_value = ftdi_sio_b600; break;
1050 case 1200: div_value = ftdi_sio_b1200; break;
1051 case 2400: div_value = ftdi_sio_b2400; break;
1052 case 4800: div_value = ftdi_sio_b4800; break;
1053 case 9600: div_value = ftdi_sio_b9600; break;
1054 case 19200: div_value = ftdi_sio_b19200; break;
1055 case 38400: div_value = ftdi_sio_b38400; break;
1056 case 57600: div_value = ftdi_sio_b57600; break;
1057 case 115200: div_value = ftdi_sio_b115200; break;
1058 } /* baud */
1059 if (div_value == 0) {
464cbb24
AC		 1060 dbg("%s - Baudrate (%d) requested is not supported",
1061 __func__, baud);
1da177e4 1062 div_value = ftdi_sio_b9600;
bd5e47cc 1063 baud = 9600;
1da177e4
LT		 1064 div_okay = 0;
1065 }
1066 break;
1067 case FT8U232AM: /* 8U232AM chip */
1068 if (baud <= 3000000) {
1069 div_value = ftdi_232am_baud_to_divisor(baud);
1070 } else {
464cbb24 1071 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 1072 baud = 9600;
1da177e4
LT		 1073 div_value = ftdi_232am_baud_to_divisor(9600);
1074 div_okay = 0;
1075 }
1076 break;
1077 case FT232BM: /* FT232BM chip */
1078 case FT2232C: /* FT2232C chip */
3b009c63 1079 case FT232RL:
1da177e4 1080 if (baud <= 3000000) {
b760dac2
MG		 1081 __u16 product_id = le16_to_cpu(
1082 port->serial->dev->descriptor.idProduct);
1083 if (((FTDI_NDI_HUC_PID == product_id) ||
1084 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1085 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1086 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1087 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1088 (baud == 19200)) {
1089 baud = 1200000;
1090 }
1da177e4
LT		 1091 div_value = ftdi_232bm_baud_to_divisor(baud);
1092 } else {
464cbb24 1093 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 1094 div_value = ftdi_232bm_baud_to_divisor(9600);
1095 div_okay = 0;
669a6db1 1096 baud = 9600;
1da177e4
LT		 1097 }
1098 break;
094c2e6d
MA		 1099 case FT2232H: /* FT2232H chip */
1100 case FT4232H: /* FT4232H chip */
1101 if ((baud <= 12000000) & (baud >= 1200)) {
1102 div_value = ftdi_2232h_baud_to_divisor(baud);
1103 } else if (baud < 1200) {
1104 div_value = ftdi_232bm_baud_to_divisor(baud);
1105 } else {
1106 dbg("%s - Baud rate too high!", __func__);
1107 div_value = ftdi_232bm_baud_to_divisor(9600);
1108 div_okay = 0;
1109 baud = 9600;
1110 }
1111 break;
1da177e4
LT		 1112 } /* priv->chip_type */
1113
1114 if (div_okay) {
1115 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1116 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1117 ftdi_chip_name[priv->chip_type]);
1118 }
1119
95da310e 1120 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1121 return div_value;
1da177e4
LT		 1122}
1123
95da310e
AC		 1124static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1125{
1126 struct ftdi_private *priv = usb_get_serial_port_data(port);
1127 char *buf;
464cbb24 1128 __u16 urb_value;
95da310e
AC		 1129 __u16 urb_index;
1130 __u32 urb_index_value;
1131 int rv;
1132
1133 buf = kmalloc(1, GFP_NOIO);
1134 if (!buf)
1135 return -ENOMEM;
1136
1137 urb_index_value = get_ftdi_divisor(tty, port);
1138 urb_value = (__u16)urb_index_value;
1139 urb_index = (__u16)(urb_index_value >> 16);
1140 if (priv->interface) { /* FT2232C */
1141 urb_index = (__u16)((urb_index << 8) | priv->interface);
1142 }
1143
1144 rv = usb_control_msg(port->serial->dev,
1145 usb_sndctrlpipe(port->serial->dev, 0),
1146 FTDI_SIO_SET_BAUDRATE_REQUEST,
1147 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1148 urb_value, urb_index,
1149 buf, 0, WDR_SHORT_TIMEOUT);
1150
1151 kfree(buf);
1152 return rv;
1153}
1154
557aaa7f
AC		 1155static int write_latency_timer(struct usb_serial_port *port)
1156{
1157 struct ftdi_private *priv = usb_get_serial_port_data(port);
1158 struct usb_device *udev = port->serial->dev;
1159 char buf[1];
1160 int rv = 0;
1161 int l = priv->latency;
1162
1163 if (priv->flags & ASYNC_LOW_LATENCY)
1164 l = 1;
1165
1166 dbg("%s: setting latency timer = %i", __func__, l);
1167
1168 rv = usb_control_msg(udev,
1169 usb_sndctrlpipe(udev, 0),
1170 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1171 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1172 l, priv->interface,
1173 buf, 0, WDR_TIMEOUT);
95da310e 1174
557aaa7f
AC		 1175 if (rv < 0)
1176 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1177 return rv;
1178}
1179
1180static int read_latency_timer(struct usb_serial_port *port)
1181{
1182 struct ftdi_private *priv = usb_get_serial_port_data(port);
1183 struct usb_device *udev = port->serial->dev;
1184 unsigned short latency = 0;
1185 int rv = 0;
1186
1187
1188 dbg("%s", __func__);
1189
1190 rv = usb_control_msg(udev,
1191 usb_rcvctrlpipe(udev, 0),
1192 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1193 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1194 0, priv->interface,
1195 (char *) &latency, 1, WDR_TIMEOUT);
1196
1197 if (rv < 0) {
1198 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1199 return -EIO;
1200 }
1201 return latency;
1202}
1da177e4 1203
464cbb24
AC		 1204static int get_serial_info(struct usb_serial_port *port,
1205 struct serial_struct __user *retinfo)
1da177e4
LT		 1206{
1207 struct ftdi_private *priv = usb_get_serial_port_data(port);
1208 struct serial_struct tmp;
1209
1210 if (!retinfo)
1211 return -EFAULT;
1212 memset(&tmp, 0, sizeof(tmp));
1213 tmp.flags = priv->flags;
1214 tmp.baud_base = priv->baud_base;
1215 tmp.custom_divisor = priv->custom_divisor;
1216 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1217 return -EFAULT;
1218 return 0;
1219} /* get_serial_info */
1220
1221
95da310e 1222static int set_serial_info(struct tty_struct *tty,
464cbb24 1223 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1224{ /* set_serial_info */
1225 struct ftdi_private *priv = usb_get_serial_port_data(port);
1226 struct serial_struct new_serial;
1227 struct ftdi_private old_priv;
1228
1229 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1230 return -EFAULT;
6b447f04
AC		 1231
1232 lock_kernel();
464cbb24 1233 old_priv = *priv;
1da177e4
LT		 1234
1235 /* Do error checking and permission checking */
1236
1237 if (!capable(CAP_SYS_ADMIN)) {
1238 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1239 (priv->flags & ~ASYNC_USR_MASK))) {
1240 unlock_kernel();
1da177e4 1241 return -EPERM;
64905b48 1242 }
1da177e4
LT		 1243 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1244 (new_serial.flags & ASYNC_USR_MASK));
1245 priv->custom_divisor = new_serial.custom_divisor;
1246 goto check_and_exit;
1247 }
1248
1249 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1250 (new_serial.baud_base < 9600)) {
1251 unlock_kernel();
1da177e4 1252 return -EINVAL;
6b447f04 1253 }
1da177e4
LT		 1254
1255 /* Make the changes - these are privileged changes! */
1256
1257 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1258 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1259 priv->custom_divisor = new_serial.custom_divisor;
1260
557aaa7f 1261 write_latency_timer(port);
1da177e4
LT		 1262
1263check_and_exit:
1264 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1265 (priv->flags & ASYNC_SPD_MASK)) {
1266 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1267 tty->alt_speed = 57600;
1da177e4 1268 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1269 tty->alt_speed = 115200;
1da177e4 1270 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1271 tty->alt_speed = 230400;
1da177e4 1272 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1273 tty->alt_speed = 460800;
1da177e4 1274 else
95da310e 1275 tty->alt_speed = 0;
1da177e4
LT		 1276 }
1277 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1278 (priv->flags & ASYNC_SPD_MASK)) ||
1279 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1280 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1281 unlock_kernel();
95da310e 1282 change_speed(tty, port);
1da177e4 1283 }
6b447f04
AC		 1284 else
1285 unlock_kernel();
95da310e 1286 return 0;
1da177e4
LT		 1287
1288} /* set_serial_info */
1289
1290
8f977e42
IA		 1291/* Determine type of FTDI chip based on USB config and descriptor. */
1292static void ftdi_determine_type(struct usb_serial_port *port)
1293{
1294 struct ftdi_private *priv = usb_get_serial_port_data(port);
1295 struct usb_serial *serial = port->serial;
1296 struct usb_device *udev = serial->dev;
1297 unsigned version;
1298 unsigned interfaces;
1299
1300 /* Assume it is not the original SIO device for now. */
f5e09b7c 1301 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1302 priv->write_offset = 0;
1303
1304 version = le16_to_cpu(udev->descriptor.bcdDevice);
1305 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1306 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1307 version, interfaces);
1308 if (interfaces > 1) {
1309 int inter;
1310
094c2e6d
MA		 1311 /* Multiple interfaces.*/
1312 if (version == 0x0800) {
1313 priv->chip_type = FT4232H;
1314 /* Hi-speed - baud clock runs at 120MHz */
1315 priv->baud_base = 120000000 / 2;
1316 } else if (version == 0x0700) {
1317 priv->chip_type = FT2232H;
1318 /* Hi-speed - baud clock runs at 120MHz */
1319 priv->baud_base = 120000000 / 2;
1320 } else
1321 priv->chip_type = FT2232C;
1322
8f977e42
IA		 1323 /* Determine interface code. */
1324 inter = serial->interface->altsetting->desc.bInterfaceNumber;
094c2e6d
MA		 1325 if (inter == 0) {
1326 priv->interface = INTERFACE_A;
1327 } else if (inter == 1) {
1328 priv->interface = INTERFACE_B;
1329 } else if (inter == 2) {
1330 priv->interface = INTERFACE_C;
1331 } else if (inter == 3) {
1332 priv->interface = INTERFACE_D;
1333 }
8f977e42
IA		 1334 /* BM-type devices have a bug where bcdDevice gets set
1335 * to 0x200 when iSerialNumber is 0. */
1336 if (version < 0x500) {
1337 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1338 __func__);
8f977e42
IA		 1339 }
1340 } else if (version < 0x200) {
1341 /* Old device. Assume its the original SIO. */
1342 priv->chip_type = SIO;
1343 priv->baud_base = 12000000 / 16;
1344 priv->write_offset = 1;
1345 } else if (version < 0x400) {
1346 /* Assume its an FT8U232AM (or FT8U245AM) */
1347 /* (It might be a BM because of the iSerialNumber bug,
1348 * but it will still work as an AM device.) */
1349 priv->chip_type = FT8U232AM;
3b009c63 1350 } else if (version < 0x600) {
8f977e42
IA		 1351 /* Assume its an FT232BM (or FT245BM) */
1352 priv->chip_type = FT232BM;
3b009c63
DB		 1353 } else {
1354 /* Assume its an FT232R */
1355 priv->chip_type = FT232RL;
8f977e42 1356 }
c197a8db 1357 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1358}
1359
1360
895f28ba
MA		 1361/* Determine the maximum packet size for the device. This depends on the chip
1362 * type and the USB host capabilities. The value should be obtained from the
1363 * device descriptor as the chip will use the appropriate values for the host.*/
1364static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1365{
1366 struct ftdi_private *priv = usb_get_serial_port_data(port);
1367 struct usb_serial *serial = port->serial;
1368 struct usb_device *udev = serial->dev;
1369
1370 struct usb_interface *interface = serial->interface;
1371 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1372
1373 unsigned num_endpoints;
1374 int i = 0;
1375
1376 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1377 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1378
1379 /* NOTE: some customers have programmed FT232R/FT245R devices
1380 * with an endpoint size of 0 - not good. In this case, we
1381 * want to override the endpoint descriptor setting and use a
1382 * value of 64 for wMaxPacketSize */
1383 for (i = 0; i < num_endpoints; i++) {
1384 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1385 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1386 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1387 if (ep_desc->wMaxPacketSize == 0) {
1388 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1389 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1390 }
1391 }
1392
1393 /* set max packet size based on descriptor */
1394 priv->max_packet_size = ep_desc->wMaxPacketSize;
1395
1396 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1397}
1398
1399
1da177e4
LT		 1400/*
1401 * ***************************************************************************
1402 * Sysfs Attribute
1403 * ***************************************************************************
1404 */
1405
464cbb24
AC		 1406static ssize_t show_latency_timer(struct device *dev,
1407 struct device_attribute *attr, char *buf)
1da177e4
LT		 1408{
1409 struct usb_serial_port *port = to_usb_serial_port(dev);
1410 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1411 if (priv->flags & ASYNC_LOW_LATENCY)
1412 return sprintf(buf, "1\n");
1413 else
1414 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1415}
1416
557aaa7f 1417
1da177e4 1418/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1419static ssize_t store_latency_timer(struct device *dev,
1420 struct device_attribute *attr, const char *valbuf,
1421 size_t count)
1da177e4
LT		 1422{
1423 struct usb_serial_port *port = to_usb_serial_port(dev);
1424 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4
LT		 1425 int v = simple_strtoul(valbuf, NULL, 10);
1426 int rv = 0;
5c09d144 1427
557aaa7f
AC		 1428 priv->latency = v;
1429 rv = write_latency_timer(port);
1430 if (rv < 0)
1da177e4 1431 return -EIO;
1da177e4
LT		 1432 return count;
1433}
1434
1435/* Write an event character directly to the FTDI register. The ASCII
1436 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1437static ssize_t store_event_char(struct device *dev,
1438 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1439{
1440 struct usb_serial_port *port = to_usb_serial_port(dev);
1441 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1442 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1443 char buf[1];
1444 int v = simple_strtoul(valbuf, NULL, 10);
1445 int rv = 0;
5c09d144 1446
441b62c1 1447 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1448
1da177e4
LT		 1449 rv = usb_control_msg(udev,
1450 usb_sndctrlpipe(udev, 0),
1451 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1452 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1453 v, priv->interface,
1da177e4 1454 buf, 0, WDR_TIMEOUT);
5c09d144 1455
1da177e4
LT		 1456 if (rv < 0) {
1457 dbg("Unable to write event character: %i", rv);
1458 return -EIO;
1459 }
5c09d144 1460
1da177e4
LT		 1461 return count;
1462}
1463
464cbb24
AC		 1464static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1465 store_latency_timer);
1da177e4
LT		 1466static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1467
12bdbe03 1468static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1469{
12bdbe03 1470 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1471 int retval = 0;
1da177e4 1472
464cbb24 1473 dbg("%s", __func__);
13f4db9e 1474
1da177e4
LT		 1475 /* XXX I've no idea if the original SIO supports the event_char
1476 * sysfs parameter, so I'm playing it safe. */
1477 if (priv->chip_type != SIO) {
1478 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1479 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1480 if ((!retval) &&
97cd49eb
SM		 1481 (priv->chip_type == FT232BM ||
1482 priv->chip_type == FT2232C ||
094c2e6d
MA		 1483 priv->chip_type == FT232RL ||
1484 priv->chip_type == FT2232H ||
1485 priv->chip_type == FT4232H)) {
12bdbe03 1486 retval = device_create_file(&port->dev,
13f4db9e 1487 &dev_attr_latency_timer);
1da177e4
LT		 1488 }
1489 }
13f4db9e 1490 return retval;
1da177e4
LT		 1491}
1492
12bdbe03 1493static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1494{
12bdbe03 1495 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1496
464cbb24 1497 dbg("%s", __func__);
1da177e4 1498
1da177e4
LT		 1499 /* XXX see create_sysfs_attrs */
1500 if (priv->chip_type != SIO) {
12bdbe03 1501 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1502 if (priv->chip_type == FT232BM ||
1503 priv->chip_type == FT2232C ||
094c2e6d
MA		 1504 priv->chip_type == FT232RL ||
1505 priv->chip_type == FT2232H ||
1506 priv->chip_type == FT4232H) {
12bdbe03 1507 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1508 }
1509 }
5c09d144 1510
1da177e4
LT		 1511}
1512
1513/*
1514 * ***************************************************************************
1515 * FTDI driver specific functions
1516 * ***************************************************************************
1517 */
1518
8f977e42 1519/* Probe function to check for special devices */
464cbb24
AC		 1520static int ftdi_sio_probe(struct usb_serial *serial,
1521 const struct usb_device_id *id)
8f977e42 1522{
464cbb24
AC		 1523 struct ftdi_sio_quirk *quirk =
1524 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1525
1526 if (quirk && quirk->probe) {
1527 int ret = quirk->probe(serial);
1528 if (ret != 0)
1529 return ret;
1530 }
1531
8f977e42
IA		 1532 usb_set_serial_data(serial, (void *)id->driver_info);
1533
fa91d43b 1534 return 0;
8f977e42
IA		 1535}
1536
12bdbe03 1537static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1538{
1da177e4 1539 struct ftdi_private *priv;
0ffbbe25
ON		 1540 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1541
13f4db9e 1542
464cbb24 1543 dbg("%s", __func__);
1da177e4 1544
80b6ca48 1545 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1546 if (!priv) {
194343d9 1547 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1548 sizeof(struct ftdi_private));
1da177e4
LT		 1549 return -ENOMEM;
1550 }
1da177e4 1551
c45d6320 1552 kref_init(&priv->kref);
22465400 1553 spin_lock_init(&priv->tx_lock);
464cbb24 1554 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1555 /* This will push the characters through immediately rather
1556 than queue a task to deliver them */
1557 priv->flags = ASYNC_LOW_LATENCY;
1558
0ffbbe25
ON		 1559 if (quirk && quirk->port_probe)
1560 quirk->port_probe(priv);
1561
1da177e4 1562 /* Increase the size of read buffers */
1bc3c9e1 1563 kfree(port->bulk_in_buffer);
464cbb24 1564 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1565 if (!port->bulk_in_buffer) {
464cbb24 1566 kfree(priv);
1da177e4
LT		 1567 return -ENOMEM;
1568 }
1569 if (port->read_urb) {
1570 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1571 port->read_urb->transfer_buffer_length = BUFSZ;
1572 }
1573
c4028958 1574 priv->port = port;
76854cea 1575
1da177e4
LT		 1576 /* Free port's existing write urb and transfer buffer. */
1577 if (port->write_urb) {
464cbb24 1578 usb_free_urb(port->write_urb);
1da177e4
LT		 1579 port->write_urb = NULL;
1580 }
1bc3c9e1
JJ		 1581 kfree(port->bulk_out_buffer);
1582 port->bulk_out_buffer = NULL;
1da177e4 1583
12bdbe03 1584 usb_set_serial_port_data(port, priv);
1da177e4 1585
464cbb24 1586 ftdi_determine_type(port);
895f28ba 1587 ftdi_set_max_packet_size(port);
557aaa7f 1588 read_latency_timer(port);
12bdbe03
JR		 1589 create_sysfs_attrs(port);
1590 return 0;
1591}
1da177e4 1592
8f977e42
IA		 1593/* Setup for the USB-UIRT device, which requires hardwired
1594 * baudrate (38400 gets mapped to 312500) */
1da177e4 1595/* Called from usbserial:serial_probe */
464cbb24 1596static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1597{
464cbb24 1598 dbg("%s", __func__);
1da177e4 1599
1da177e4
LT		 1600 priv->flags |= ASYNC_SPD_CUST;
1601 priv->custom_divisor = 77;
669a6db1 1602 priv->force_baud = 38400;
8f977e42 1603} /* ftdi_USB_UIRT_setup */
1da177e4 1604
8f977e42
IA		 1605/* Setup for the HE-TIRA1 device, which requires hardwired
1606 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1607
1608static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1609{
464cbb24 1610 dbg("%s", __func__);
1da177e4 1611
1da177e4
LT		 1612 priv->flags |= ASYNC_SPD_CUST;
1613 priv->custom_divisor = 240;
669a6db1 1614 priv->force_baud = 38400;
1da177e4 1615 priv->force_rtscts = 1;
8f977e42 1616} /* ftdi_HE_TIRA1_setup */
1da177e4 1617
b760dac2
MG		 1618/*
1619 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1620 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1621 */
1622static int ndi_latency_timer = 1;
1623
1624/* Setup for the NDI FTDI-based USB devices, which requires hardwired
1625 * baudrate (19200 gets mapped to 1200000).
1626 *
1627 * Called from usbserial:serial_probe.
1628 */
1629static int ftdi_NDI_device_setup(struct usb_serial *serial)
1630{
1631 struct usb_device *udev = serial->dev;
1632 int latency = ndi_latency_timer;
1633 int rv = 0;
1634 char buf[1];
1635
1636 if (latency == 0)
1637 latency = 1;
1638 if (latency > 99)
1639 latency = 99;
1640
1641 dbg("%s setting NDI device latency to %d", __func__, latency);
1642 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1643
1644 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1645 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1646 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1647 latency, 0, buf, 0, WDR_TIMEOUT);
1648 return 0;
1649}
1650
fa91d43b 1651/*
20734345
HW		 1652 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1653 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1654 * userspace using openocd.
fa91d43b 1655 */
20734345 1656static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1657{
1658 struct usb_device *udev = serial->dev;
1659 struct usb_interface *interface = serial->interface;
1660
464cbb24 1661 dbg("%s", __func__);
fa91d43b
TL		 1662
1663 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1664 dev_info(&udev->dev,
1665 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1666 return -ENODEV;
1667 }
1668
1669 return 0;
1670}
1da177e4 1671
546d7eec
KV		 1672/*
1673 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1674 * We have to correct it if we want to read from it.
1675 */
1676static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1677{
1678 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1679 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1680
1681 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1682 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1683 dev_info(&serial->dev->dev,
1684 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1685 }
1686
1687 return 0;
1688}
1689
c45d6320
AS		 1690static void ftdi_sio_priv_release(struct kref *k)
1691{
1692 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1693
1694 kfree(priv);
1695}
1696
12bdbe03
JR		 1697static int ftdi_sio_port_remove(struct usb_serial_port *port)
1698{
1da177e4
LT		 1699 struct ftdi_private *priv = usb_get_serial_port_data(port);
1700
441b62c1 1701 dbg("%s", __func__);
1da177e4 1702
12bdbe03 1703 remove_sysfs_attrs(port);
5c09d144 1704
80193195 1705 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1706
12bdbe03
JR		 1707 return 0;
1708}
1da177e4 1709
cc01f17d
JH		 1710static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags)
1711{
1712 struct urb *urb = port->read_urb;
1713 struct usb_serial *serial = port->serial;
1714 int result;
1715
1716 usb_fill_bulk_urb(urb, serial->dev,
1717 usb_rcvbulkpipe(serial->dev,
1718 port->bulk_in_endpointAddress),
1719 urb->transfer_buffer,
1720 urb->transfer_buffer_length,
1721 ftdi_read_bulk_callback, port);
1722 result = usb_submit_urb(urb, mem_flags);
e2b5cbfe 1723 if (result && result != -EPERM)
cc01f17d
JH		 1724 dev_err(&port->dev,
1725 "%s - failed submitting read urb, error %d\n",
1726 __func__, result);
1727 return result;
1728}
1729
a509a7e4 1730static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1da177e4 1731{ /* ftdi_open */
1da177e4
LT		 1732 struct usb_device *dev = port->serial->dev;
1733 struct ftdi_private *priv = usb_get_serial_port_data(port);
1734 unsigned long flags;
5c09d144 1735
1da177e4
LT		 1736 int result = 0;
1737 char buf[1]; /* Needed for the usb_control_msg I think */
1738
441b62c1 1739 dbg("%s", __func__);
1da177e4 1740
22465400
IA		 1741 spin_lock_irqsave(&priv->tx_lock, flags);
1742 priv->tx_bytes = 0;
1743 spin_unlock_irqrestore(&priv->tx_lock, flags);
22465400 1744
557aaa7f
AC		 1745 write_latency_timer(port);
1746
1da177e4
LT		 1747 /* No error checking for this (will get errors later anyway) */
1748 /* See ftdi_sio.h for description of what is reset */
1749 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1750 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1751 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1752 priv->interface, buf, 0, WDR_TIMEOUT);
1753
1754 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1755 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1756 This is same behaviour as serial.c/rs_open() - Kuba */
1757
1758 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1759 if (tty)
1760 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1761
1da177e4 1762 /* Not throttled */
cc01f17d
JH		 1763 spin_lock_irqsave(&port->lock, flags);
1764 port->throttled = 0;
1765 port->throttle_req = 0;
1766 spin_unlock_irqrestore(&port->lock, flags);
1da177e4
LT		 1767
1768 /* Start reading from the device */
cc01f17d
JH		 1769 result = ftdi_submit_read_urb(port, GFP_KERNEL);
1770 if (!result)
c45d6320 1771 kref_get(&priv->kref);
1da177e4
LT		 1772
1773 return result;
1774} /* ftdi_open */
1775
1776
335f8514
AC		 1777static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1778{
1779 struct ftdi_private *priv = usb_get_serial_port_data(port);
1780 char buf[1];
1781
1782 mutex_lock(&port->serial->disc_mutex);
1783 if (!port->serial->disconnected) {
1784 /* Disable flow control */
1785 if (!on && usb_control_msg(port->serial->dev,
1786 usb_sndctrlpipe(port->serial->dev, 0),
1787 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1788 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1789 0, priv->interface, buf, 0,
1790 WDR_TIMEOUT) < 0) {
1791 dev_err(&port->dev, "error from flowcontrol urb\n");
1792 }
1793 /* drop RTS and DTR */
1794 if (on)
1795 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1796 else
1797 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1798 }
1799 mutex_unlock(&port->serial->disc_mutex);
1800}
1da177e4 1801
5c09d144 1802/*
1da177e4
LT		 1803 * usbserial:__serial_close only calls ftdi_close if the point is open
1804 *
1805 * This only gets called when it is the last close
5c09d144
DB		 1806 *
1807 *
1da177e4
LT		 1808 */
1809
335f8514 1810static void ftdi_close(struct usb_serial_port *port)
1da177e4 1811{ /* ftdi_close */
1da177e4 1812 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1813
441b62c1 1814 dbg("%s", __func__);
1da177e4 1815
1da177e4 1816 /* shutdown our bulk read */
794c944e 1817 usb_kill_urb(port->read_urb);
c45d6320 1818 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1819} /* ftdi_close */
1820
1821
5c09d144 1822
1da177e4
LT		 1823/* The SIO requires the first byte to have:
1824 * B0 1
1825 * B1 0
1826 * B2..7 length of message excluding byte 0
1827 *
1828 * The new devices do not require this byte
1829 */
95da310e 1830static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1831 const unsigned char *buf, int count)
1832{ /* ftdi_write */
1833 struct ftdi_private *priv = usb_get_serial_port_data(port);
1834 struct urb *urb;
1835 unsigned char *buffer;
1836 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1837 int status;
1838 int transfer_size;
22465400 1839 unsigned long flags;
1da177e4 1840
441b62c1 1841 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1842
1843 if (count == 0) {
1844 dbg("write request of 0 bytes");
1845 return 0;
1846 }
22465400
IA		 1847 spin_lock_irqsave(&priv->tx_lock, flags);
1848 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1849 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1850 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1851 return 0;
1852 }
62127a58 1853 priv->tx_outstanding_urbs++;
22465400 1854 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1855
1da177e4 1856 data_offset = priv->write_offset;
464cbb24 1857 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1858
1859 /* Determine total transfer size */
1860 transfer_size = count;
1861 if (data_offset > 0) {
1862 /* Original sio needs control bytes too... */
1863 transfer_size += (data_offset *
895f28ba
MA		 1864 ((count + (priv->max_packet_size - 1 - data_offset)) /
1865 (priv->max_packet_size - data_offset)));
1da177e4
LT		 1866 }
1867
464cbb24 1868 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1869 if (!buffer) {
194343d9
GKH		 1870 dev_err(&port->dev,
1871 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1872 count = -ENOMEM;
1873 goto error_no_buffer;
1da177e4
LT		 1874 }
1875
1876 urb = usb_alloc_urb(0, GFP_ATOMIC);
1877 if (!urb) {
194343d9 1878 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1879 count = -ENOMEM;
1880 goto error_no_urb;
1da177e4
LT		 1881 }
1882
1883 /* Copy data */
1884 if (data_offset > 0) {
464cbb24
AC		 1885 /* Original sio requires control byte at start of
1886 each packet. */
895f28ba 1887 int user_pktsz = priv->max_packet_size - data_offset;
1da177e4
LT		 1888 int todo = count;
1889 unsigned char *first_byte = buffer;
1890 const unsigned char *current_position = buf;
1891
1892 while (todo > 0) {
464cbb24 1893 if (user_pktsz > todo)
1da177e4 1894 user_pktsz = todo;
1da177e4 1895 /* Write the control byte at the front of the packet*/
5c09d144 1896 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1897 /* Copy data for packet */
464cbb24 1898 memcpy(first_byte + data_offset,
1da177e4
LT		 1899 current_position, user_pktsz);
1900 first_byte += user_pktsz + data_offset;
1901 current_position += user_pktsz;
1902 todo -= user_pktsz;
1903 }
1904 } else {
1905 /* No control byte required. */
1906 /* Copy in the data to send */
464cbb24 1907 memcpy(buffer, buf, count);
1da177e4
LT		 1908 }
1909
464cbb24
AC		 1910 usb_serial_debug_data(debug, &port->dev, __func__,
1911 transfer_size, buffer);
1da177e4
LT		 1912
1913 /* fill the buffer and send it */
5c09d144 1914 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1915 usb_sndbulkpipe(port->serial->dev,
1916 port->bulk_out_endpointAddress),
1917 buffer, transfer_size,
1918 ftdi_write_bulk_callback, port);
1da177e4
LT		 1919
1920 status = usb_submit_urb(urb, GFP_ATOMIC);
1921 if (status) {
194343d9
GKH		 1922 dev_err(&port->dev,
1923 "%s - failed submitting write urb, error %d\n",
1924 __func__, status);
1da177e4 1925 count = status;
62127a58 1926 goto error;
22465400
IA		 1927 } else {
1928 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1929 priv->tx_outstanding_bytes += count;
1930 priv->tx_bytes += count;
1931 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1932 }
1933
1934 /* we are done with this urb, so let the host driver
1935 * really free it when it is finished with it */
62127a58 1936 usb_free_urb(urb);
1da177e4 1937
441b62c1 1938 dbg("%s write returning: %d", __func__, count);
1da177e4 1939 return count;
62127a58
ON		 1940error:
1941 usb_free_urb(urb);
1942error_no_urb:
464cbb24 1943 kfree(buffer);
62127a58
ON		 1944error_no_buffer:
1945 spin_lock_irqsave(&priv->tx_lock, flags);
1946 priv->tx_outstanding_urbs--;
1947 spin_unlock_irqrestore(&priv->tx_lock, flags);
1948 return count;
1da177e4
LT		 1949} /* ftdi_write */
1950
1951
1952/* This function may get called when the device is closed */
1953
464cbb24 1954static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1955{
22465400 1956 unsigned long flags;
cdc97792 1957 struct usb_serial_port *port = urb->context;
22465400
IA		 1958 struct ftdi_private *priv;
1959 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1960 unsigned long countback;
0fb0aa18 1961 int status = urb->status;
1da177e4
LT		 1962
1963 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1964 kfree(urb->transfer_buffer);
1da177e4 1965
441b62c1 1966 dbg("%s - port %d", __func__, port->number);
5c09d144 1967
22465400
IA		 1968 priv = usb_get_serial_port_data(port);
1969 if (!priv) {
441b62c1 1970 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1971 return;
1972 }
1973 /* account for transferred data */
0de6ab8b 1974 countback = urb->transfer_buffer_length;
22465400
IA		 1975 data_offset = priv->write_offset;
1976 if (data_offset > 0) {
1977 /* Subtract the control bytes */
895f28ba 1978 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
22465400
IA		 1979 }
1980 spin_lock_irqsave(&priv->tx_lock, flags);
1981 --priv->tx_outstanding_urbs;
1982 priv->tx_outstanding_bytes -= countback;
1983 spin_unlock_irqrestore(&priv->tx_lock, flags);
1984
87c1edd2
JW		 1985 if (status) {
1986 dbg("nonzero write bulk status received: %d", status);
87c1edd2
JW		 1987 }
1988
cf2c7481 1989 usb_serial_port_softint(port);
1da177e4
LT		 1990} /* ftdi_write_bulk_callback */
1991
1992
95da310e 1993static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1994{
95da310e 1995 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1996 struct ftdi_private *priv = usb_get_serial_port_data(port);
1997 int room;
1998 unsigned long flags;
1999
441b62c1 2000 dbg("%s - port %d", __func__, port->number);
1da177e4 2001
22465400
IA		 2002 spin_lock_irqsave(&priv->tx_lock, flags);
2003 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
2004 /*
2005 * We really can take anything the user throws at us
2006 * but let's pick a nice big number to tell the tty
2007 * layer that we have lots of free space
2008 */
2009 room = 2048;
2010 } else {
2011 room = 0;
2012 }
2013 spin_unlock_irqrestore(&priv->tx_lock, flags);
2014 return room;
95da310e 2015}
1da177e4 2016
95da310e
AC		 2017static int ftdi_chars_in_buffer(struct tty_struct *tty)
2018{
2019 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 2020 struct ftdi_private *priv = usb_get_serial_port_data(port);
2021 int buffered;
2022 unsigned long flags;
2023
441b62c1 2024 dbg("%s - port %d", __func__, port->number);
1da177e4 2025
22465400
IA		 2026 spin_lock_irqsave(&priv->tx_lock, flags);
2027 buffered = (int)priv->tx_outstanding_bytes;
2028 spin_unlock_irqrestore(&priv->tx_lock, flags);
2029 if (buffered < 0) {
194343d9
GKH		 2030 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
2031 __func__);
22465400
IA		 2032 buffered = 0;
2033 }
2034 return buffered;
95da310e 2035}
1da177e4 2036
cc01f17d
JH		 2037static int ftdi_process_packet(struct tty_struct *tty,
2038 struct usb_serial_port *port, struct ftdi_private *priv,
2039 char *packet, int len)
95da310e 2040{
1da177e4 2041 int i;
cc01f17d
JH		 2042 char status;
2043 char flag;
2044 char *ch;
1da177e4 2045
441b62c1 2046 dbg("%s - port %d", __func__, port->number);
1da177e4 2047
cc01f17d
JH		 2048 if (len < 2) {
2049 dbg("malformed packet");
2050 return 0;
1da177e4
LT		 2051 }
2052
cc01f17d
JH		 2053 /* Compare new line status to the old one, signal if different/
2054 N.B. packet may be processed more than once, but differences
2055 are only processed once. */
2056 status = packet[0] & FTDI_STATUS_B0_MASK;
2057 if (status != priv->prev_status) {
2058 priv->diff_status |= status ^ priv->prev_status;
2059 wake_up_interruptible(&priv->delta_msr_wait);
2060 priv->prev_status = status;
1da177e4
LT		 2061 }
2062
cc01f17d
JH		 2063 /*
2064 * Although the device uses a bitmask and hence can have multiple
2065 * errors on a packet - the order here sets the priority the error is
2066 * returned to the tty layer.
2067 */
2068 flag = TTY_NORMAL;
2069 if (packet[1] & FTDI_RS_OE) {
2070 flag = TTY_OVERRUN;
2071 dbg("OVERRRUN error");
1da177e4 2072 }
cc01f17d
JH		 2073 if (packet[1] & FTDI_RS_BI) {
2074 flag = TTY_BREAK;
2075 dbg("BREAK received");
2076 usb_serial_handle_break(port);
2077 }
2078 if (packet[1] & FTDI_RS_PE) {
2079 flag = TTY_PARITY;
2080 dbg("PARITY error");
2081 }
2082 if (packet[1] & FTDI_RS_FE) {
2083 flag = TTY_FRAME;
2084 dbg("FRAMING error");
76854cea 2085 }
1da177e4 2086
cc01f17d
JH		 2087 len -= 2;
2088 if (!len)
2089 return 0; /* status only */
2090 ch = packet + 2;
2091
2092 if (!(port->console && port->sysrq) && flag == TTY_NORMAL)
2093 tty_insert_flip_string(tty, ch, len);
2094 else {
2095 for (i = 0; i < len; i++, ch++) {
2096 if (!usb_serial_handle_sysrq_char(tty, port, *ch))
2097 tty_insert_flip_char(tty, *ch, flag);
76854cea 2098 }
cc01f17d
JH		 2099 }
2100 return len;
2101}
76854cea 2102
cc01f17d
JH		 2103static void ftdi_process_read(struct usb_serial_port *port)
2104{
2105 struct urb *urb = port->read_urb;
2106 struct tty_struct *tty;
2107 struct ftdi_private *priv = usb_get_serial_port_data(port);
2108 char *data = (char *)urb->transfer_buffer;
2109 int i;
2110 int len;
2111 int count = 0;
1da177e4 2112
cc01f17d
JH		 2113 tty = tty_port_tty_get(&port->port);
2114 if (!tty)
2115 return;
1da177e4 2116
cc01f17d
JH		 2117 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2118 len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2119 count += ftdi_process_packet(tty, port, priv, &data[i], len);
2120 }
1da177e4 2121
cc01f17d 2122 if (count)
1da177e4 2123 tty_flip_buffer_push(tty);
cc01f17d
JH		 2124 tty_kref_put(tty);
2125}
1da177e4 2126
cc01f17d
JH		 2127static void ftdi_read_bulk_callback(struct urb *urb)
2128{
2129 struct usb_serial_port *port = urb->context;
2130 unsigned long flags;
76854cea 2131
cc01f17d 2132 dbg("%s - port %d", __func__, port->number);
1da177e4 2133
cc01f17d
JH		 2134 if (urb->status) {
2135 dbg("%s - nonzero read bulk status received: %d",
2136 __func__, urb->status);
2137 return;
1da177e4 2138 }
1da177e4 2139
cc01f17d
JH		 2140 usb_serial_debug_data(debug, &port->dev, __func__,
2141 urb->actual_length, urb->transfer_buffer);
2142 ftdi_process_read(port);
2143
2144 spin_lock_irqsave(&port->lock, flags);
2145 port->throttled = port->throttle_req;
2146 if (!port->throttled) {
2147 spin_unlock_irqrestore(&port->lock, flags);
2148 ftdi_submit_read_urb(port, GFP_ATOMIC);
2149 } else
2150 spin_unlock_irqrestore(&port->lock, flags);
2151}
1da177e4 2152
95da310e 2153static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2154{
95da310e 2155 struct usb_serial_port *port = tty->driver_data;
1da177e4 2156 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2157 __u16 urb_value = 0;
1da177e4 2158 char buf[1];
5c09d144 2159
1da177e4
LT		 2160 /* break_state = -1 to turn on break, and 0 to turn off break */
2161 /* see drivers/char/tty_io.c to see it used */
2162 /* last_set_data_urb_value NEVER has the break bit set in it */
2163
464cbb24 2164 if (break_state)
1da177e4 2165 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2166 else
5c09d144 2167 urb_value = priv->last_set_data_urb_value;
5c09d144 2168
464cbb24
AC		 2169 if (usb_control_msg(port->serial->dev,
2170 usb_sndctrlpipe(port->serial->dev, 0),
2171 FTDI_SIO_SET_DATA_REQUEST,
2172 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2173 urb_value , priv->interface,
2174 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2175 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2176 "(state was %d)\n", __func__, break_state);
5c09d144 2177 }
1da177e4 2178
464cbb24
AC		 2179 dbg("%s break state is %d - urb is %d", __func__,
2180 break_state, urb_value);
5c09d144 2181
1da177e4
LT		 2182}
2183
2184
2185/* old_termios contains the original termios settings and tty->termios contains
2186 * the new setting to be used
2187 * WARNING: set_termios calls this with old_termios in kernel space
2188 */
2189
95da310e
AC		 2190static void ftdi_set_termios(struct tty_struct *tty,
2191 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2192{ /* ftdi_termios */
2193 struct usb_device *dev = port->serial->dev;
1da177e4 2194 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2195 struct ktermios *termios = tty->termios;
669a6db1 2196 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2197 __u16 urb_value; /* will hold the new flags */
2198 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2199
464cbb24 2200 /* Added for xon/xoff support */
669a6db1 2201 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2202 unsigned char vstop;
2203 unsigned char vstart;
5c09d144 2204
441b62c1 2205 dbg("%s", __func__);
1da177e4 2206
464cbb24
AC		 2207 /* Force baud rate if this device requires it, unless it is set to
2208 B0. */
669a6db1 2209 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2210 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2211 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2212 priv->force_baud);
1da177e4
LT		 2213 }
2214
2215 /* Force RTS-CTS if this device requires it. */
2216 if (priv->force_rtscts) {
441b62c1 2217 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2218 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2219 }
2220
669a6db1 2221 cflag = termios->c_cflag;
1da177e4 2222
5c09d144
DB		 2223 /* FIXME -For this cut I don't care if the line is really changing or
2224 not - so just do the change regardless - should be able to
1da177e4 2225 compare old_termios and tty->termios */
5c09d144 2226 /* NOTE These routines can get interrupted by
464cbb24
AC		 2227 ftdi_sio_read_bulk_callback - need to examine what this means -
2228 don't see any problems yet */
5c09d144 2229
1da177e4 2230 /* Set number of data bits, parity, stop bits */
5c09d144 2231
1da177e4
LT		 2232 urb_value = 0;
2233 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2234 FTDI_SIO_SET_DATA_STOP_BITS_1);
38fcb830
RK		 2235 if (cflag & PARENB) {
2236 if (cflag & CMSPAR)
2237 urb_value |= cflag & PARODD ?
2238 FTDI_SIO_SET_DATA_PARITY_MARK :
2239 FTDI_SIO_SET_DATA_PARITY_SPACE;
2240 else
2241 urb_value |= cflag & PARODD ?
2242 FTDI_SIO_SET_DATA_PARITY_ODD :
2243 FTDI_SIO_SET_DATA_PARITY_EVEN;
2244 } else {
2245 urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2246 }
1da177e4
LT		 2247 if (cflag & CSIZE) {
2248 switch (cflag & CSIZE) {
2249 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2250 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2251 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2252 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2253 default:
194343d9 2254 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2255 }
2256 }
2257
464cbb24
AC		 2258 /* This is needed by the break command since it uses the same command
2259 - but is or'ed with this value */
1da177e4 2260 priv->last_set_data_urb_value = urb_value;
5c09d144 2261
1da177e4 2262 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2263 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2264 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2265 urb_value , priv->interface,
279e1545 2266 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2267 dev_err(&port->dev, "%s FAILED to set "
2268 "databits/stopbits/parity\n", __func__);
5c09d144 2269 }
1da177e4
LT		 2270
2271 /* Now do the baudrate */
464cbb24 2272 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2273 /* Disable flow control */
2274 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2275 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2276 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2277 0, priv->interface,
1da177e4 2278 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2279 dev_err(&port->dev,
2280 "%s error from disable flowcontrol urb\n",
2281 __func__);
5c09d144 2282 }
1da177e4 2283 /* Drop RTS and DTR */
74ede0ff 2284 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2285 } else {
2286 /* set the baudrate determined before */
464cbb24 2287 if (change_speed(tty, port))
194343d9
GKH		 2288 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2289 __func__);
72a755fc 2290 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2291 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2292 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2293 }
2294
2295 /* Set flow control */
2296 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2297 if (cflag & CRTSCTS) {
441b62c1 2298 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2299 if (usb_control_msg(dev,
1da177e4 2300 usb_sndctrlpipe(dev, 0),
5c09d144 2301 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2302 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2303 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2304 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2305 dev_err(&port->dev,
2306 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2307 }
2308
2309 } else {
1da177e4
LT		 2310 /*
2311 * Xon/Xoff code
2312 *
464cbb24
AC		 2313 * Check the IXOFF status in the iflag component of the
2314 * termios structure. If IXOFF is not set, the pre-xon/xoff
2315 * code is executed.
2316 */
1da177e4 2317 if (iflag & IXOFF) {
464cbb24
AC		 2318 dbg("%s request to enable xonxoff iflag=%04x",
2319 __func__, iflag);
2320 /* Try to enable the XON/XOFF on the ftdi_sio
2321 * Set the vstart and vstop -- could have been done up
2322 * above where a lot of other dereferencing is done but
2323 * that would be very inefficient as vstart and vstop
2324 * are not always needed.
2325 */
669a6db1
AC		 2326 vstart = termios->c_cc[VSTART];
2327 vstop = termios->c_cc[VSTOP];
464cbb24 2328 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2329
2330 if (usb_control_msg(dev,
2331 usb_sndctrlpipe(dev, 0),
2332 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2333 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2334 urb_value , (FTDI_SIO_XON_XOFF_HS
2335 | priv->interface),
2336 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2337 dev_err(&port->dev, "urb failed to set to "
2338 "xon/xoff flow control\n");
1da177e4
LT		 2339 }
2340 } else {
464cbb24
AC		 2341 /* else clause to only run if cflag ! CRTSCTS and iflag
2342 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2343 * stack - not by device */
441b62c1 2344 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2345 if (usb_control_msg(dev,
1da177e4 2346 usb_sndctrlpipe(dev, 0),
5c09d144 2347 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2348 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2349 0, priv->interface,
1da177e4 2350 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2351 dev_err(&port->dev,
2352 "urb failed to clear flow control\n");
5c09d144 2353 }
1da177e4 2354 }
5c09d144 2355
1da177e4
LT		 2356 }
2357 return;
95da310e 2358}
1da177e4 2359
95da310e 2360static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2361{
95da310e 2362 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2363 struct ftdi_private *priv = usb_get_serial_port_data(port);
2364 unsigned char buf[2];
2365 int ret;
2366
441b62c1 2367 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2368 switch (priv->chip_type) {
2369 case SIO:
2370 /* Request the status from the device */
464cbb24
AC		 2371 ret = usb_control_msg(port->serial->dev,
2372 usb_rcvctrlpipe(port->serial->dev, 0),
2373 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2374 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2375 0, 0,
2376 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2377 if (ret < 0)
464cbb24 2378 return ret;
1da177e4
LT		 2379 break;
2380 case FT8U232AM:
2381 case FT232BM:
2382 case FT2232C:
ed6e5282 2383 case FT232RL:
094c2e6d
MA		 2384 case FT2232H:
2385 case FT4232H:
464cbb24
AC		 2386 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2387 value) - in the same format as the data returned from the in
2388 point */
2389 ret = usb_control_msg(port->serial->dev,
2390 usb_rcvctrlpipe(port->serial->dev, 0),
2391 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2392 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2393 0, priv->interface,
2394 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2395 if (ret < 0)
464cbb24 2396 return ret;
1da177e4
LT		 2397 break;
2398 default:
2399 return -EFAULT;
1da177e4 2400 }
5c09d144 2401
1da177e4
LT		 2402 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2403 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2404 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2405 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2406 priv->last_dtr_rts;
1da177e4
LT		 2407}
2408
464cbb24 2409static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2410 unsigned int set, unsigned int clear)
1da177e4 2411{
95da310e 2412 struct usb_serial_port *port = tty->driver_data;
441b62c1 2413 dbg("%s TIOCMSET", __func__);
74ede0ff 2414 return update_mctrl(port, set, clear);
1da177e4
LT		 2415}
2416
2417
464cbb24
AC		 2418static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2419 unsigned int cmd, unsigned long arg)
1da177e4 2420{
95da310e 2421 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2422 struct ftdi_private *priv = usb_get_serial_port_data(port);
2423
441b62c1 2424 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2425
2426 /* Based on code from acm.c and others */
2427 switch (cmd) {
2428
1da177e4 2429 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2430 return get_serial_info(port,
2431 (struct serial_struct __user *) arg);
1da177e4
LT		 2432
2433 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2434 return set_serial_info(tty, port,
2435 (struct serial_struct __user *) arg);
1da177e4
LT		 2436
2437 /*
2438 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2439 * - mask passed in arg for lines of interest
2440 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2441 * Caller should use TIOCGICOUNT to see which one it was.
2442 *
2443 * This code is borrowed from linux/drivers/char/serial.c
2444 */
2445 case TIOCMIWAIT:
2446 while (priv != NULL) {
2447 interruptible_sleep_on(&priv->delta_msr_wait);
2448 /* see if a signal did it */
2449 if (signal_pending(current))
2450 return -ERESTARTSYS;
2451 else {
2452 char diff = priv->diff_status;
2453
464cbb24 2454 if (diff == 0)
1da177e4 2455 return -EIO; /* no change => error */
1da177e4
LT		 2456
2457 /* Consume all events */
2458 priv->diff_status = 0;
2459
464cbb24
AC		 2460 /* Return 0 if caller wanted to know about
2461 these bits */
2462 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2463 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2464 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2465 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2466 return 0;
2467 }
2468 /*
464cbb24
AC		 2469 * Otherwise caller can't care less about what
2470 * happened,and so we continue to wait for more
2471 * events.
1da177e4
LT		 2472 */
2473 }
2474 }
95da310e 2475 return 0;
1da177e4
LT		 2476 default:
2477 break;
1da177e4 2478 }
464cbb24
AC		 2479 /* This is not necessarily an error - turns out the higher layers
2480 * will do some ioctls themselves (see comment above)
1da177e4 2481 */
441b62c1 2482 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2483 return -ENOIOCTLCMD;
2484}
1da177e4 2485
95da310e 2486static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2487{
95da310e 2488 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2489 unsigned long flags;
2490
441b62c1 2491 dbg("%s - port %d", __func__, port->number);
1da177e4 2492
cc01f17d
JH		 2493 spin_lock_irqsave(&port->lock, flags);
2494 port->throttle_req = 1;
2495 spin_unlock_irqrestore(&port->lock, flags);
1da177e4
LT		 2496}
2497
cc01f17d 2498void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2499{
95da310e 2500 struct usb_serial_port *port = tty->driver_data;
cc01f17d 2501 int was_throttled;
1da177e4
LT		 2502 unsigned long flags;
2503
441b62c1 2504 dbg("%s - port %d", __func__, port->number);
1da177e4 2505
cc01f17d
JH		 2506 spin_lock_irqsave(&port->lock, flags);
2507 was_throttled = port->throttled;
2508 port->throttled = port->throttle_req = 0;
2509 spin_unlock_irqrestore(&port->lock, flags);
1da177e4 2510
cc01f17d
JH		 2511 /* Resubmit urb if throttled and open. */
2512 if (was_throttled && test_bit(ASYNCB_INITIALIZED, &port->port.flags))
2513 ftdi_submit_read_urb(port, GFP_KERNEL);
1da177e4
LT		 2514}
2515
464cbb24 2516static int __init ftdi_init(void)
1da177e4
LT		 2517{
2518 int retval;
2519
441b62c1 2520 dbg("%s", __func__);
fdcb0a0f
IA		 2521 if (vendor > 0 && product > 0) {
2522 /* Add user specified VID/PID to reserved element of table. */
2523 int i;
2524 for (i = 0; id_table_combined[i].idVendor; i++)
2525 ;
2526 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2527 id_table_combined[i].idVendor = vendor;
2528 id_table_combined[i].idProduct = product;
2529 }
8f977e42 2530 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2531 if (retval)
8f977e42 2532 goto failed_sio_register;
1da177e4 2533 retval = usb_register(&ftdi_driver);
5c09d144 2534 if (retval)
1da177e4
LT		 2535 goto failed_usb_register;
2536
c197a8db
GKH		 2537 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2538 DRIVER_DESC "\n");
1da177e4
LT		 2539 return 0;
2540failed_usb_register:
8f977e42
IA		 2541 usb_serial_deregister(&ftdi_sio_device);
2542failed_sio_register:
1da177e4
LT		 2543 return retval;
2544}
2545
2546
464cbb24 2547static void __exit ftdi_exit(void)
1da177e4
LT		 2548{
2549
441b62c1 2550 dbg("%s", __func__);
1da177e4 2551
464cbb24
AC		 2552 usb_deregister(&ftdi_driver);
2553 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2554
2555}
2556
2557
2558module_init(ftdi_init);
2559module_exit(ftdi_exit);
2560
464cbb24
AC		 2561MODULE_AUTHOR(DRIVER_AUTHOR);
2562MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2563MODULE_LICENSE("GPL");
2564
2565module_param(debug, bool, S_IRUGO | S_IWUSR);
2566MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2567module_param(vendor, ushort, 0);
2568MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2569 __MODULE_STRING(FTDI_VID)")");
2570module_param(product, ushort, 0);
68265043 2571MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2572
b760dac2
MG		 2573module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2574MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
Clone of davem's net-next-2.6 tree