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USB: ftdi_sio: remove unused tx_bytes counter
[deliverable/linux.git] / drivers / usb / serial / ftdi_sio.c
CommitLineData
1da177e4
LT		 1/*
2 * USB FTDI SIO driver
3 *
5c09d144
DB		 4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
1da177e4
LT		 6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
5c09d144
DB		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
1da177e4 14 *
464cbb24
AC		 15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
1da177e4
LT		 17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
504b55cc
GKH		 21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 23 *
24 */
25
26/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27/* Thanx to FTDI for so kindly providing details of the protocol required */
28/* to talk to the device */
464cbb24
AC		 29/* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
1da177e4 31
1da177e4
LT		 32#include <linux/kernel.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/slab.h>
36#include <linux/tty.h>
37#include <linux/tty_driver.h>
38#include <linux/tty_flip.h>
39#include <linux/module.h>
40#include <linux/spinlock.h>
bd09a9f5 41#include <linux/mutex.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 90 spinlock_t tx_lock; /* spinlock for transmit state */
0ffbbe25
ON		 91 unsigned long tx_outstanding_bytes;
92 unsigned long tx_outstanding_urbs;
895f28ba 93 unsigned short max_packet_size;
bd09a9f5 94 struct mutex cfg_lock; /* Avoid mess by parallel calls of config ioctl() */
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) },
46b72d78 617 { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
1da177e4
LT		 618 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
619 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
620 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
a8cbd90a
CB		 621 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
622 { USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
623 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
624 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
625 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
626 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
627 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
628 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
629 { USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
630 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
631 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
632 { USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
633 { USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
634 { USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
1da177e4 635 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 636 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
637 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 638 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
639 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
640 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
641 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
642 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
643 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
644 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
645 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 646 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 647 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 648 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
649 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 650 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
651 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 652 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
653 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
654 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
655 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 656 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
657 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 658 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 659 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
660 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 661 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
662 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 663 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 664 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 665 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 666 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 667 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
668 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 669 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 670 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 671 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 672 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
673 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 674 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 675 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 676 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 677 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 678 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 679 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 680 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 681 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 682 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 683 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 684 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
685 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
686 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 687 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
b760dac2
MG		 688 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
689 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
690 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
691 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
692 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
693 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
694 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
695 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
696 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
697 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
822c7ef4 698 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 699 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 700 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 701 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 702 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 703 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 704 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 705 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
706 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
707 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
708 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
709 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 710 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
711 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
712 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
713 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
14511412
KH		 714 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
715 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 716 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 717 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 718 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
a7787e50 719 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
96285cb8
GC		 720 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
721 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 722 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 723 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
7f82b6dd
AW		 724 { USB_DEVICE(ATMEL_VID, STK541_PID) },
725 { USB_DEVICE(DE_VID, STB_PID) },
726 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 727 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
728 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
11eaf170
MH		 729 { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
730 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 731 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 732 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
733 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
d46130ab 734 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
fca4404c 735 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
c47aacc6 736 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
50d0678e
DV		 737 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
738 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
e7d7fcc0
PL		 739 { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
740 { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
9714080d
MS		 741 { USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
742 { USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
743 { USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) },
744 { USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) },
fdcb0a0f
IA		 745 { }, /* Optional parameter entry */
746 { } /* Terminating entry */
1da177e4
LT		 747};
748
464cbb24 749MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 750
751static struct usb_driver ftdi_driver = {
752 .name = "ftdi_sio",
753 .probe = usb_serial_probe,
754 .disconnect = usb_serial_disconnect,
755 .id_table = id_table_combined,
5c09d144 756 .no_dynamic_id = 1,
1da177e4
LT		 757};
758
4c4c9432 759static const char *ftdi_chip_name[] = {
1da177e4
LT		 760 [SIO] = "SIO", /* the serial part of FT8U100AX */
761 [FT8U232AM] = "FT8U232AM",
762 [FT232BM] = "FT232BM",
763 [FT2232C] = "FT2232C",
d8b21606 764 [FT232RL] = "FT232RL",
094c2e6d
MA		 765 [FT2232H] = "FT2232H",
766 [FT4232H] = "FT4232H"
1da177e4
LT		 767};
768
769
770/* Constants for read urb and write urb */
771#define BUFSZ 512
1da177e4 772
1da177e4
LT		 773/* Used for TIOCMIWAIT */
774#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
775#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
776/* End TIOCMIWAIT */
777
bbc5d276
RK		 778#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
779 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 780
781/* function prototypes for a FTDI serial converter */
464cbb24
AC		 782static int ftdi_sio_probe(struct usb_serial *serial,
783 const struct usb_device_id *id);
464cbb24
AC		 784static int ftdi_sio_port_probe(struct usb_serial_port *port);
785static int ftdi_sio_port_remove(struct usb_serial_port *port);
a509a7e4 786static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
335f8514
AC		 787static void ftdi_close(struct usb_serial_port *port);
788static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 789static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
790 const unsigned char *buf, int count);
791static int ftdi_write_room(struct tty_struct *tty);
792static int ftdi_chars_in_buffer(struct tty_struct *tty);
793static void ftdi_write_bulk_callback(struct urb *urb);
794static void ftdi_read_bulk_callback(struct urb *urb);
cc01f17d 795static void ftdi_process_read(struct usb_serial_port *port);
464cbb24
AC		 796static void ftdi_set_termios(struct tty_struct *tty,
797 struct usb_serial_port *port, struct ktermios *old);
798static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
799static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
800 unsigned int set, unsigned int clear);
801static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
802 unsigned int cmd, unsigned long arg);
803static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
804static void ftdi_throttle(struct tty_struct *tty);
805static void ftdi_unthrottle(struct tty_struct *tty);
806
807static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
808static unsigned short int ftdi_232am_baud_to_divisor(int baud);
809static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
810static __u32 ftdi_232bm_baud_to_divisor(int baud);
094c2e6d
MA		 811static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
812static __u32 ftdi_2232h_baud_to_divisor(int baud);
1da177e4 813
ea65370d 814static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 815 .driver = {
816 .owner = THIS_MODULE,
269bda1c 817 .name = "ftdi_sio",
18fcac35 818 },
269bda1c 819 .description = "FTDI USB Serial Device",
330e3c4c 820 .usb_driver = &ftdi_driver,
8f977e42 821 .id_table = id_table_combined,
1da177e4 822 .num_ports = 1,
8f977e42 823 .probe = ftdi_sio_probe,
12bdbe03
JR		 824 .port_probe = ftdi_sio_port_probe,
825 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 826 .open = ftdi_open,
827 .close = ftdi_close,
335f8514 828 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 829 .throttle = ftdi_throttle,
830 .unthrottle = ftdi_unthrottle,
831 .write = ftdi_write,
832 .write_room = ftdi_write_room,
833 .chars_in_buffer = ftdi_chars_in_buffer,
834 .read_bulk_callback = ftdi_read_bulk_callback,
835 .write_bulk_callback = ftdi_write_bulk_callback,
330e3c4c
AM		 836 .tiocmget = ftdi_tiocmget,
837 .tiocmset = ftdi_tiocmset,
1da177e4
LT		 838 .ioctl = ftdi_ioctl,
839 .set_termios = ftdi_set_termios,
840 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 841};
842
1da177e4
LT		 843
844#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 845#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 846
847/* High and low are for DTR, RTS etc etc */
848#define HIGH 1
849#define LOW 0
850
22465400
IA		 851/* number of outstanding urbs to prevent userspace DoS from happening */
852#define URB_UPPER_LIMIT 42
853
1da177e4
LT		 854/*
855 * ***************************************************************************
fa91d43b 856 * Utility functions
1da177e4
LT		 857 * ***************************************************************************
858 */
859
860static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
861{
862 unsigned short int divisor;
464cbb24
AC		 863 /* divisor shifted 3 bits to the left */
864 int divisor3 = base / 2 / baud;
865 if ((divisor3 & 0x7) == 7)
866 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 867 divisor = divisor3 >> 3;
868 divisor3 &= 0x7;
464cbb24
AC		 869 if (divisor3 == 1)
870 divisor |= 0xc000;
871 else if (divisor3 >= 4)
872 divisor |= 0x4000;
873 else if (divisor3 != 0)
874 divisor |= 0x8000;
875 else if (divisor == 1)
876 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 877 return divisor;
878}
879
880static unsigned short int ftdi_232am_baud_to_divisor(int baud)
881{
464cbb24 882 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 883}
884
885static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
886{
887 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
888 __u32 divisor;
464cbb24
AC		 889 /* divisor shifted 3 bits to the left */
890 int divisor3 = base / 2 / baud;
1da177e4
LT		 891 divisor = divisor3 >> 3;
892 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
893 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 894 if (divisor == 1)
895 divisor = 0;
896 else if (divisor == 0x4001)
897 divisor = 1;
1da177e4
LT		 898 return divisor;
899}
900
901static __u32 ftdi_232bm_baud_to_divisor(int baud)
902{
464cbb24 903 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 904}
905
094c2e6d
MA		 906static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
907{
908 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
909 __u32 divisor;
910 int divisor3;
911
912 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
913 divisor3 = (base / 10 / baud) * 8;
914
915 divisor = divisor3 >> 3;
916 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
917 /* Deal with special cases for highest baud rates. */
918 if (divisor == 1)
919 divisor = 0;
920 else if (divisor == 0x4001)
921 divisor = 1;
922 /*
923 * Set this bit to turn off a divide by 2.5 on baud rate generator
924 * This enables baud rates up to 12Mbaud but cannot reach below 1200
925 * baud with this bit set
926 */
927 divisor |= 0x00020000;
928 return divisor;
929}
930
931static __u32 ftdi_2232h_baud_to_divisor(int baud)
932{
933 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
934}
935
74ede0ff
IA		 936#define set_mctrl(port, set) update_mctrl((port), (set), 0)
937#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
938
464cbb24
AC		 939static int update_mctrl(struct usb_serial_port *port, unsigned int set,
940 unsigned int clear)
1da177e4
LT		 941{
942 struct ftdi_private *priv = usb_get_serial_port_data(port);
74ede0ff 943 unsigned urb_value;
1da177e4 944 int rv;
1da177e4 945
74ede0ff 946 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 947 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 948 return 0; /* no change */
949 }
1da177e4 950
74ede0ff
IA		 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,
66e47e60 966 NULL, 0, WDR_TIMEOUT);
74ede0ff 967 if (rv < 0) {
43b11d33 968 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 969 __func__,
74ede0ff
IA		 970 (set & TIOCM_DTR) ? "HIGH" :
971 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
972 (set & TIOCM_RTS) ? "HIGH" :
973 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
974 } else {
441b62c1 975 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 976 (set & TIOCM_DTR) ? "HIGH" :
977 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
978 (set & TIOCM_RTS) ? "HIGH" :
979 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 980 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 981 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
982 }
1da177e4
LT		 983 return rv;
984}
985
986
464cbb24
AC		 987static __u32 get_ftdi_divisor(struct tty_struct *tty,
988 struct usb_serial_port *port)
1da177e4
LT		 989{ /* get_ftdi_divisor */
990 struct ftdi_private *priv = usb_get_serial_port_data(port);
991 __u32 div_value = 0;
992 int div_okay = 1;
993 int baud;
994
995 /*
464cbb24
AC		 996 * The logic involved in setting the baudrate can be cleanly split into
997 * 3 steps.
1da177e4 998 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 999 * 2. If these are not enough, you can set any speed using alt_speed as
1000 * follows:
1da177e4
LT		 1001 * - set tty->termios->c_cflag speed to B38400
1002 * - set your real speed in tty->alt_speed; it gets ignored when
1003 * alt_speed==0, (or)
464cbb24
AC		 1004 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1005 * follows:
1006 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1007 * this just sets alt_speed to (HI: 57600, VHI: 115200,
1008 * SHI: 230400, WARP: 460800)
1da177e4
LT		 1009 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1010 * 3. You can also set baud rate by setting custom divisor as follows
1011 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 1012 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1013 * follows:
1da177e4
LT		 1014 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1015 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 1016 * ** Step 3 is done courtesy of code borrowed from serial.c
1017 * I should really spend some time and separate + move this common
1018 * code to serial.c, it is replicated in nearly every serial driver
1019 * you see.
1da177e4
LT		 1020 */
1021
464cbb24
AC		 1022 /* 1. Get the baud rate from the tty settings, this observes
1023 alt_speed hack */
1da177e4 1024
95da310e 1025 baud = tty_get_baud_rate(tty);
441b62c1 1026 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 1027
464cbb24
AC		 1028 /* 2. Observe async-compatible custom_divisor hack, update baudrate
1029 if needed */
1da177e4
LT		 1030
1031 if (baud == 38400 &&
1032 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1033 (priv->custom_divisor)) {
1034 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 1035 dbg("%s - custom divisor %d sets baud rate to %d",
1036 __func__, priv->custom_divisor, baud);
1da177e4
LT		 1037 }
1038
1039 /* 3. Convert baudrate to device-specific divisor */
1040
464cbb24
AC		 1041 if (!baud)
1042 baud = 9600;
1043 switch (priv->chip_type) {
1da177e4 1044 case SIO: /* SIO chip */
464cbb24 1045 switch (baud) {
1da177e4
LT		 1046 case 300: div_value = ftdi_sio_b300; break;
1047 case 600: div_value = ftdi_sio_b600; break;
1048 case 1200: div_value = ftdi_sio_b1200; break;
1049 case 2400: div_value = ftdi_sio_b2400; break;
1050 case 4800: div_value = ftdi_sio_b4800; break;
1051 case 9600: div_value = ftdi_sio_b9600; break;
1052 case 19200: div_value = ftdi_sio_b19200; break;
1053 case 38400: div_value = ftdi_sio_b38400; break;
1054 case 57600: div_value = ftdi_sio_b57600; break;
1055 case 115200: div_value = ftdi_sio_b115200; break;
1056 } /* baud */
1057 if (div_value == 0) {
464cbb24
AC		 1058 dbg("%s - Baudrate (%d) requested is not supported",
1059 __func__, baud);
1da177e4 1060 div_value = ftdi_sio_b9600;
bd5e47cc 1061 baud = 9600;
1da177e4
LT		 1062 div_okay = 0;
1063 }
1064 break;
1065 case FT8U232AM: /* 8U232AM chip */
1066 if (baud <= 3000000) {
1067 div_value = ftdi_232am_baud_to_divisor(baud);
1068 } else {
464cbb24 1069 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 1070 baud = 9600;
1da177e4
LT		 1071 div_value = ftdi_232am_baud_to_divisor(9600);
1072 div_okay = 0;
1073 }
1074 break;
1075 case FT232BM: /* FT232BM chip */
1076 case FT2232C: /* FT2232C chip */
3b009c63 1077 case FT232RL:
1da177e4 1078 if (baud <= 3000000) {
b760dac2
MG		 1079 __u16 product_id = le16_to_cpu(
1080 port->serial->dev->descriptor.idProduct);
1081 if (((FTDI_NDI_HUC_PID == product_id) ||
1082 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1083 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1084 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1085 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1086 (baud == 19200)) {
1087 baud = 1200000;
1088 }
1da177e4
LT		 1089 div_value = ftdi_232bm_baud_to_divisor(baud);
1090 } else {
464cbb24 1091 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 1092 div_value = ftdi_232bm_baud_to_divisor(9600);
1093 div_okay = 0;
669a6db1 1094 baud = 9600;
1da177e4
LT		 1095 }
1096 break;
094c2e6d
MA		 1097 case FT2232H: /* FT2232H chip */
1098 case FT4232H: /* FT4232H chip */
1099 if ((baud <= 12000000) & (baud >= 1200)) {
1100 div_value = ftdi_2232h_baud_to_divisor(baud);
1101 } else if (baud < 1200) {
1102 div_value = ftdi_232bm_baud_to_divisor(baud);
1103 } else {
1104 dbg("%s - Baud rate too high!", __func__);
1105 div_value = ftdi_232bm_baud_to_divisor(9600);
1106 div_okay = 0;
1107 baud = 9600;
1108 }
1109 break;
1da177e4
LT		 1110 } /* priv->chip_type */
1111
1112 if (div_okay) {
1113 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1114 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1115 ftdi_chip_name[priv->chip_type]);
1116 }
1117
95da310e 1118 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1119 return div_value;
1da177e4
LT		 1120}
1121
95da310e
AC		 1122static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1123{
1124 struct ftdi_private *priv = usb_get_serial_port_data(port);
464cbb24 1125 __u16 urb_value;
95da310e
AC		 1126 __u16 urb_index;
1127 __u32 urb_index_value;
1128 int rv;
1129
95da310e
AC		 1130 urb_index_value = get_ftdi_divisor(tty, port);
1131 urb_value = (__u16)urb_index_value;
1132 urb_index = (__u16)(urb_index_value >> 16);
1133 if (priv->interface) { /* FT2232C */
1134 urb_index = (__u16)((urb_index << 8) | priv->interface);
1135 }
1136
1137 rv = usb_control_msg(port->serial->dev,
1138 usb_sndctrlpipe(port->serial->dev, 0),
1139 FTDI_SIO_SET_BAUDRATE_REQUEST,
1140 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1141 urb_value, urb_index,
66e47e60 1142 NULL, 0, WDR_SHORT_TIMEOUT);
95da310e
AC		 1143 return rv;
1144}
1145
557aaa7f
AC		 1146static int write_latency_timer(struct usb_serial_port *port)
1147{
1148 struct ftdi_private *priv = usb_get_serial_port_data(port);
1149 struct usb_device *udev = port->serial->dev;
c1284d77 1150 int rv;
557aaa7f
AC		 1151 int l = priv->latency;
1152
1153 if (priv->flags & ASYNC_LOW_LATENCY)
1154 l = 1;
1155
1156 dbg("%s: setting latency timer = %i", __func__, l);
1157
1158 rv = usb_control_msg(udev,
1159 usb_sndctrlpipe(udev, 0),
1160 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1161 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1162 l, priv->interface,
66e47e60 1163 NULL, 0, WDR_TIMEOUT);
557aaa7f
AC		 1164 if (rv < 0)
1165 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1166 return rv;
1167}
1168
1169static int read_latency_timer(struct usb_serial_port *port)
1170{
1171 struct ftdi_private *priv = usb_get_serial_port_data(port);
1172 struct usb_device *udev = port->serial->dev;
54f328d0 1173 unsigned char *buf;
c1284d77 1174 int rv;
557aaa7f 1175
557aaa7f
AC		 1176 dbg("%s", __func__);
1177
54f328d0
JH		 1178 buf = kmalloc(1, GFP_KERNEL);
1179 if (!buf)
1180 return -ENOMEM;
1181
557aaa7f
AC		 1182 rv = usb_control_msg(udev,
1183 usb_rcvctrlpipe(udev, 0),
1184 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1185 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1186 0, priv->interface,
54f328d0 1187 buf, 1, WDR_TIMEOUT);
4357369d 1188 if (rv < 0)
557aaa7f 1189 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
4357369d 1190 else
54f328d0
JH		 1191 priv->latency = buf[0];
1192
1193 kfree(buf);
1194
8c4f99cd 1195 return rv;
557aaa7f 1196}
1da177e4 1197
464cbb24
AC		 1198static int get_serial_info(struct usb_serial_port *port,
1199 struct serial_struct __user *retinfo)
1da177e4
LT		 1200{
1201 struct ftdi_private *priv = usb_get_serial_port_data(port);
1202 struct serial_struct tmp;
1203
1204 if (!retinfo)
1205 return -EFAULT;
1206 memset(&tmp, 0, sizeof(tmp));
1207 tmp.flags = priv->flags;
1208 tmp.baud_base = priv->baud_base;
1209 tmp.custom_divisor = priv->custom_divisor;
1210 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1211 return -EFAULT;
1212 return 0;
1213} /* get_serial_info */
1214
1215
95da310e 1216static int set_serial_info(struct tty_struct *tty,
464cbb24 1217 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1218{ /* set_serial_info */
1219 struct ftdi_private *priv = usb_get_serial_port_data(port);
1220 struct serial_struct new_serial;
1221 struct ftdi_private old_priv;
1222
1223 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1224 return -EFAULT;
6b447f04 1225
bd09a9f5 1226 mutex_lock(&priv->cfg_lock);
464cbb24 1227 old_priv = *priv;
1da177e4
LT		 1228
1229 /* Do error checking and permission checking */
1230
1231 if (!capable(CAP_SYS_ADMIN)) {
1232 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48 1233 (priv->flags & ~ASYNC_USR_MASK))) {
bd09a9f5 1234 mutex_unlock(&priv->cfg_lock);
1da177e4 1235 return -EPERM;
64905b48 1236 }
1da177e4
LT		 1237 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1238 (new_serial.flags & ASYNC_USR_MASK));
1239 priv->custom_divisor = new_serial.custom_divisor;
1240 goto check_and_exit;
1241 }
1242
1243 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04 1244 (new_serial.baud_base < 9600)) {
bd09a9f5 1245 mutex_unlock(&priv->cfg_lock);
1da177e4 1246 return -EINVAL;
6b447f04 1247 }
1da177e4
LT		 1248
1249 /* Make the changes - these are privileged changes! */
1250
1251 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1252 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1253 priv->custom_divisor = new_serial.custom_divisor;
1254
557aaa7f 1255 write_latency_timer(port);
1da177e4
LT		 1256
1257check_and_exit:
1258 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1259 (priv->flags & ASYNC_SPD_MASK)) {
1260 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1261 tty->alt_speed = 57600;
1da177e4 1262 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1263 tty->alt_speed = 115200;
1da177e4 1264 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1265 tty->alt_speed = 230400;
1da177e4 1266 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1267 tty->alt_speed = 460800;
1da177e4 1268 else
95da310e 1269 tty->alt_speed = 0;
1da177e4
LT		 1270 }
1271 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1272 (priv->flags & ASYNC_SPD_MASK)) ||
1273 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1274 (old_priv.custom_divisor != priv->custom_divisor))) {
bd09a9f5 1275 mutex_unlock(&priv->cfg_lock);
95da310e 1276 change_speed(tty, port);
1da177e4 1277 }
6b447f04 1278 else
bd09a9f5 1279 mutex_unlock(&priv->cfg_lock);
95da310e 1280 return 0;
1da177e4
LT		 1281
1282} /* set_serial_info */
1283
1284
8f977e42
IA		 1285/* Determine type of FTDI chip based on USB config and descriptor. */
1286static void ftdi_determine_type(struct usb_serial_port *port)
1287{
1288 struct ftdi_private *priv = usb_get_serial_port_data(port);
1289 struct usb_serial *serial = port->serial;
1290 struct usb_device *udev = serial->dev;
1291 unsigned version;
1292 unsigned interfaces;
1293
1294 /* Assume it is not the original SIO device for now. */
f5e09b7c 1295 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1296 priv->write_offset = 0;
1297
1298 version = le16_to_cpu(udev->descriptor.bcdDevice);
1299 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1300 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1301 version, interfaces);
1302 if (interfaces > 1) {
1303 int inter;
1304
094c2e6d
MA		 1305 /* Multiple interfaces.*/
1306 if (version == 0x0800) {
1307 priv->chip_type = FT4232H;
1308 /* Hi-speed - baud clock runs at 120MHz */
1309 priv->baud_base = 120000000 / 2;
1310 } else if (version == 0x0700) {
1311 priv->chip_type = FT2232H;
1312 /* Hi-speed - baud clock runs at 120MHz */
1313 priv->baud_base = 120000000 / 2;
1314 } else
1315 priv->chip_type = FT2232C;
1316
8f977e42
IA		 1317 /* Determine interface code. */
1318 inter = serial->interface->altsetting->desc.bInterfaceNumber;
094c2e6d
MA		 1319 if (inter == 0) {
1320 priv->interface = INTERFACE_A;
1321 } else if (inter == 1) {
1322 priv->interface = INTERFACE_B;
1323 } else if (inter == 2) {
1324 priv->interface = INTERFACE_C;
1325 } else if (inter == 3) {
1326 priv->interface = INTERFACE_D;
1327 }
8f977e42
IA		 1328 /* BM-type devices have a bug where bcdDevice gets set
1329 * to 0x200 when iSerialNumber is 0. */
1330 if (version < 0x500) {
1331 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1332 __func__);
8f977e42
IA		 1333 }
1334 } else if (version < 0x200) {
330e3c4c 1335 /* Old device. Assume it's the original SIO. */
8f977e42
IA		 1336 priv->chip_type = SIO;
1337 priv->baud_base = 12000000 / 16;
1338 priv->write_offset = 1;
1339 } else if (version < 0x400) {
330e3c4c 1340 /* Assume it's an FT8U232AM (or FT8U245AM) */
8f977e42
IA		 1341 /* (It might be a BM because of the iSerialNumber bug,
1342 * but it will still work as an AM device.) */
1343 priv->chip_type = FT8U232AM;
3b009c63 1344 } else if (version < 0x600) {
330e3c4c 1345 /* Assume it's an FT232BM (or FT245BM) */
8f977e42 1346 priv->chip_type = FT232BM;
3b009c63 1347 } else {
330e3c4c 1348 /* Assume it's an FT232R */
3b009c63 1349 priv->chip_type = FT232RL;
8f977e42 1350 }
c197a8db 1351 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1352}
1353
1354
895f28ba
MA		 1355/* Determine the maximum packet size for the device. This depends on the chip
1356 * type and the USB host capabilities. The value should be obtained from the
1357 * device descriptor as the chip will use the appropriate values for the host.*/
1358static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1359{
1360 struct ftdi_private *priv = usb_get_serial_port_data(port);
1361 struct usb_serial *serial = port->serial;
1362 struct usb_device *udev = serial->dev;
1363
1364 struct usb_interface *interface = serial->interface;
1365 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1366
1367 unsigned num_endpoints;
c1284d77 1368 int i;
895f28ba
MA		 1369
1370 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1371 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1372
1373 /* NOTE: some customers have programmed FT232R/FT245R devices
1374 * with an endpoint size of 0 - not good. In this case, we
1375 * want to override the endpoint descriptor setting and use a
1376 * value of 64 for wMaxPacketSize */
1377 for (i = 0; i < num_endpoints; i++) {
1378 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1379 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1380 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1381 if (ep_desc->wMaxPacketSize == 0) {
1382 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1383 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1384 }
1385 }
1386
1387 /* set max packet size based on descriptor */
1388 priv->max_packet_size = ep_desc->wMaxPacketSize;
1389
1390 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1391}
1392
1393
1da177e4
LT		 1394/*
1395 * ***************************************************************************
1396 * Sysfs Attribute
1397 * ***************************************************************************
1398 */
1399
464cbb24
AC		 1400static ssize_t show_latency_timer(struct device *dev,
1401 struct device_attribute *attr, char *buf)
1da177e4
LT		 1402{
1403 struct usb_serial_port *port = to_usb_serial_port(dev);
1404 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1405 if (priv->flags & ASYNC_LOW_LATENCY)
1406 return sprintf(buf, "1\n");
1407 else
1408 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1409}
1410
557aaa7f 1411
1da177e4 1412/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1413static ssize_t store_latency_timer(struct device *dev,
1414 struct device_attribute *attr, const char *valbuf,
1415 size_t count)
1da177e4
LT		 1416{
1417 struct usb_serial_port *port = to_usb_serial_port(dev);
1418 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1419 int v = simple_strtoul(valbuf, NULL, 10);
c1284d77 1420 int rv;
5c09d144 1421
557aaa7f
AC		 1422 priv->latency = v;
1423 rv = write_latency_timer(port);
1424 if (rv < 0)
1da177e4 1425 return -EIO;
1da177e4
LT		 1426 return count;
1427}
1428
1429/* Write an event character directly to the FTDI register. The ASCII
1430 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1431static ssize_t store_event_char(struct device *dev,
1432 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1433{
1434 struct usb_serial_port *port = to_usb_serial_port(dev);
1435 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1436 struct usb_device *udev = port->serial->dev;
1da177e4 1437 int v = simple_strtoul(valbuf, NULL, 10);
c1284d77 1438 int rv;
5c09d144 1439
441b62c1 1440 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1441
1da177e4
LT		 1442 rv = usb_control_msg(udev,
1443 usb_sndctrlpipe(udev, 0),
1444 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1445 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1446 v, priv->interface,
66e47e60 1447 NULL, 0, WDR_TIMEOUT);
1da177e4
LT		 1448 if (rv < 0) {
1449 dbg("Unable to write event character: %i", rv);
1450 return -EIO;
1451 }
5c09d144 1452
1da177e4
LT		 1453 return count;
1454}
1455
464cbb24
AC		 1456static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1457 store_latency_timer);
1da177e4
LT		 1458static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1459
12bdbe03 1460static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1461{
12bdbe03 1462 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1463 int retval = 0;
1da177e4 1464
464cbb24 1465 dbg("%s", __func__);
13f4db9e 1466
1da177e4
LT		 1467 /* XXX I've no idea if the original SIO supports the event_char
1468 * sysfs parameter, so I'm playing it safe. */
1469 if (priv->chip_type != SIO) {
1470 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1471 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1472 if ((!retval) &&
97cd49eb
SM		 1473 (priv->chip_type == FT232BM ||
1474 priv->chip_type == FT2232C ||
094c2e6d
MA		 1475 priv->chip_type == FT232RL ||
1476 priv->chip_type == FT2232H ||
1477 priv->chip_type == FT4232H)) {
12bdbe03 1478 retval = device_create_file(&port->dev,
13f4db9e 1479 &dev_attr_latency_timer);
1da177e4
LT		 1480 }
1481 }
13f4db9e 1482 return retval;
1da177e4
LT		 1483}
1484
12bdbe03 1485static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1486{
12bdbe03 1487 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1488
464cbb24 1489 dbg("%s", __func__);
1da177e4 1490
1da177e4
LT		 1491 /* XXX see create_sysfs_attrs */
1492 if (priv->chip_type != SIO) {
12bdbe03 1493 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1494 if (priv->chip_type == FT232BM ||
1495 priv->chip_type == FT2232C ||
094c2e6d
MA		 1496 priv->chip_type == FT232RL ||
1497 priv->chip_type == FT2232H ||
1498 priv->chip_type == FT4232H) {
12bdbe03 1499 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1500 }
1501 }
5c09d144 1502
1da177e4
LT		 1503}
1504
1505/*
1506 * ***************************************************************************
1507 * FTDI driver specific functions
1508 * ***************************************************************************
1509 */
1510
8f977e42 1511/* Probe function to check for special devices */
464cbb24
AC		 1512static int ftdi_sio_probe(struct usb_serial *serial,
1513 const struct usb_device_id *id)
8f977e42 1514{
464cbb24
AC		 1515 struct ftdi_sio_quirk *quirk =
1516 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1517
1518 if (quirk && quirk->probe) {
1519 int ret = quirk->probe(serial);
1520 if (ret != 0)
1521 return ret;
1522 }
1523
8f977e42
IA		 1524 usb_set_serial_data(serial, (void *)id->driver_info);
1525
fa91d43b 1526 return 0;
8f977e42
IA		 1527}
1528
12bdbe03 1529static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1530{
1da177e4 1531 struct ftdi_private *priv;
0ffbbe25
ON		 1532 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1533
13f4db9e 1534
464cbb24 1535 dbg("%s", __func__);
1da177e4 1536
80b6ca48 1537 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1538 if (!priv) {
194343d9 1539 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1540 sizeof(struct ftdi_private));
1da177e4
LT		 1541 return -ENOMEM;
1542 }
1da177e4 1543
c45d6320 1544 kref_init(&priv->kref);
22465400 1545 spin_lock_init(&priv->tx_lock);
bd09a9f5 1546 mutex_init(&priv->cfg_lock);
464cbb24 1547 init_waitqueue_head(&priv->delta_msr_wait);
0076b4be 1548
1da177e4
LT		 1549 priv->flags = ASYNC_LOW_LATENCY;
1550
0ffbbe25
ON		 1551 if (quirk && quirk->port_probe)
1552 quirk->port_probe(priv);
1553
1da177e4 1554 /* Increase the size of read buffers */
1bc3c9e1 1555 kfree(port->bulk_in_buffer);
464cbb24 1556 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1557 if (!port->bulk_in_buffer) {
464cbb24 1558 kfree(priv);
1da177e4
LT		 1559 return -ENOMEM;
1560 }
1561 if (port->read_urb) {
1562 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1563 port->read_urb->transfer_buffer_length = BUFSZ;
1564 }
1565
c4028958 1566 priv->port = port;
76854cea 1567
1da177e4
LT		 1568 /* Free port's existing write urb and transfer buffer. */
1569 if (port->write_urb) {
464cbb24 1570 usb_free_urb(port->write_urb);
1da177e4
LT		 1571 port->write_urb = NULL;
1572 }
1bc3c9e1
JJ		 1573 kfree(port->bulk_out_buffer);
1574 port->bulk_out_buffer = NULL;
1da177e4 1575
12bdbe03 1576 usb_set_serial_port_data(port, priv);
1da177e4 1577
464cbb24 1578 ftdi_determine_type(port);
895f28ba 1579 ftdi_set_max_packet_size(port);
8c4f99cd
JH		 1580 if (read_latency_timer(port) < 0)
1581 priv->latency = 16;
12bdbe03
JR		 1582 create_sysfs_attrs(port);
1583 return 0;
1584}
1da177e4 1585
8f977e42
IA		 1586/* Setup for the USB-UIRT device, which requires hardwired
1587 * baudrate (38400 gets mapped to 312500) */
1da177e4 1588/* Called from usbserial:serial_probe */
464cbb24 1589static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1590{
464cbb24 1591 dbg("%s", __func__);
1da177e4 1592
1da177e4
LT		 1593 priv->flags |= ASYNC_SPD_CUST;
1594 priv->custom_divisor = 77;
669a6db1 1595 priv->force_baud = 38400;
8f977e42 1596} /* ftdi_USB_UIRT_setup */
1da177e4 1597
8f977e42
IA		 1598/* Setup for the HE-TIRA1 device, which requires hardwired
1599 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1600
1601static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1602{
464cbb24 1603 dbg("%s", __func__);
1da177e4 1604
1da177e4
LT		 1605 priv->flags |= ASYNC_SPD_CUST;
1606 priv->custom_divisor = 240;
669a6db1 1607 priv->force_baud = 38400;
1da177e4 1608 priv->force_rtscts = 1;
8f977e42 1609} /* ftdi_HE_TIRA1_setup */
1da177e4 1610
b760dac2
MG		 1611/*
1612 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1613 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1614 */
1615static int ndi_latency_timer = 1;
1616
1617/* Setup for the NDI FTDI-based USB devices, which requires hardwired
1618 * baudrate (19200 gets mapped to 1200000).
1619 *
1620 * Called from usbserial:serial_probe.
1621 */
1622static int ftdi_NDI_device_setup(struct usb_serial *serial)
1623{
1624 struct usb_device *udev = serial->dev;
1625 int latency = ndi_latency_timer;
b760dac2
MG		 1626
1627 if (latency == 0)
1628 latency = 1;
1629 if (latency > 99)
1630 latency = 99;
1631
1632 dbg("%s setting NDI device latency to %d", __func__, latency);
1633 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1634
c1284d77
JH		 1635 /* FIXME: errors are not returned */
1636 usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
b760dac2
MG		 1637 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1638 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
66e47e60 1639 latency, 0, NULL, 0, WDR_TIMEOUT);
b760dac2
MG		 1640 return 0;
1641}
1642
fa91d43b 1643/*
20734345
HW		 1644 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1645 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1646 * userspace using openocd.
fa91d43b 1647 */
20734345 1648static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1649{
1650 struct usb_device *udev = serial->dev;
1651 struct usb_interface *interface = serial->interface;
1652
464cbb24 1653 dbg("%s", __func__);
fa91d43b
TL		 1654
1655 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1656 dev_info(&udev->dev,
1657 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1658 return -ENODEV;
1659 }
1660
1661 return 0;
1662}
1da177e4 1663
546d7eec
KV		 1664/*
1665 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1666 * We have to correct it if we want to read from it.
1667 */
1668static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1669{
1670 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1671 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1672
1673 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1674 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1675 dev_info(&serial->dev->dev,
1676 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1677 }
1678
1679 return 0;
1680}
1681
c45d6320
AS		 1682static void ftdi_sio_priv_release(struct kref *k)
1683{
1684 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1685
1686 kfree(priv);
1687}
1688
12bdbe03
JR		 1689static int ftdi_sio_port_remove(struct usb_serial_port *port)
1690{
1da177e4
LT		 1691 struct ftdi_private *priv = usb_get_serial_port_data(port);
1692
441b62c1 1693 dbg("%s", __func__);
1da177e4 1694
12bdbe03 1695 remove_sysfs_attrs(port);
5c09d144 1696
80193195 1697 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1698
12bdbe03
JR		 1699 return 0;
1700}
1da177e4 1701
cc01f17d
JH		 1702static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags)
1703{
1704 struct urb *urb = port->read_urb;
1705 struct usb_serial *serial = port->serial;
1706 int result;
1707
1708 usb_fill_bulk_urb(urb, serial->dev,
1709 usb_rcvbulkpipe(serial->dev,
1710 port->bulk_in_endpointAddress),
1711 urb->transfer_buffer,
1712 urb->transfer_buffer_length,
1713 ftdi_read_bulk_callback, port);
1714 result = usb_submit_urb(urb, mem_flags);
e2b5cbfe 1715 if (result && result != -EPERM)
cc01f17d
JH		 1716 dev_err(&port->dev,
1717 "%s - failed submitting read urb, error %d\n",
1718 __func__, result);
1719 return result;
1720}
1721
a509a7e4 1722static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1da177e4 1723{ /* ftdi_open */
1da177e4
LT		 1724 struct usb_device *dev = port->serial->dev;
1725 struct ftdi_private *priv = usb_get_serial_port_data(port);
1726 unsigned long flags;
c1284d77 1727 int result;
1da177e4 1728
441b62c1 1729 dbg("%s", __func__);
1da177e4 1730
557aaa7f
AC		 1731 write_latency_timer(port);
1732
1da177e4
LT		 1733 /* No error checking for this (will get errors later anyway) */
1734 /* See ftdi_sio.h for description of what is reset */
1735 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1736 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1737 FTDI_SIO_RESET_SIO,
66e47e60 1738 priv->interface, NULL, 0, WDR_TIMEOUT);
1da177e4
LT		 1739
1740 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1741 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1742 This is same behaviour as serial.c/rs_open() - Kuba */
1743
1744 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1745 if (tty)
1746 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1747
1da177e4 1748 /* Not throttled */
cc01f17d
JH		 1749 spin_lock_irqsave(&port->lock, flags);
1750 port->throttled = 0;
1751 port->throttle_req = 0;
1752 spin_unlock_irqrestore(&port->lock, flags);
1da177e4
LT		 1753
1754 /* Start reading from the device */
cc01f17d
JH		 1755 result = ftdi_submit_read_urb(port, GFP_KERNEL);
1756 if (!result)
c45d6320 1757 kref_get(&priv->kref);
1da177e4
LT		 1758
1759 return result;
1760} /* ftdi_open */
1761
1762
335f8514
AC		 1763static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1764{
1765 struct ftdi_private *priv = usb_get_serial_port_data(port);
335f8514
AC		 1766
1767 mutex_lock(&port->serial->disc_mutex);
1768 if (!port->serial->disconnected) {
1769 /* Disable flow control */
1770 if (!on && usb_control_msg(port->serial->dev,
1771 usb_sndctrlpipe(port->serial->dev, 0),
1772 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1773 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
66e47e60 1774 0, priv->interface, NULL, 0,
335f8514
AC		 1775 WDR_TIMEOUT) < 0) {
1776 dev_err(&port->dev, "error from flowcontrol urb\n");
1777 }
1778 /* drop RTS and DTR */
1779 if (on)
1780 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1781 else
1782 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1783 }
1784 mutex_unlock(&port->serial->disc_mutex);
1785}
1da177e4 1786
5c09d144 1787/*
1da177e4
LT		 1788 * usbserial:__serial_close only calls ftdi_close if the point is open
1789 *
1790 * This only gets called when it is the last close
5c09d144
DB		 1791 *
1792 *
1da177e4
LT		 1793 */
1794
335f8514 1795static void ftdi_close(struct usb_serial_port *port)
1da177e4 1796{ /* ftdi_close */
1da177e4 1797 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1798
441b62c1 1799 dbg("%s", __func__);
1da177e4 1800
1da177e4 1801 /* shutdown our bulk read */
794c944e 1802 usb_kill_urb(port->read_urb);
c45d6320 1803 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1804} /* ftdi_close */
1805
1806
5c09d144 1807
1da177e4
LT		 1808/* The SIO requires the first byte to have:
1809 * B0 1
1810 * B1 0
1811 * B2..7 length of message excluding byte 0
1812 *
1813 * The new devices do not require this byte
1814 */
95da310e 1815static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1816 const unsigned char *buf, int count)
1817{ /* ftdi_write */
1818 struct ftdi_private *priv = usb_get_serial_port_data(port);
1819 struct urb *urb;
1820 unsigned char *buffer;
1821 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1822 int status;
1823 int transfer_size;
22465400 1824 unsigned long flags;
1da177e4 1825
441b62c1 1826 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1827
1828 if (count == 0) {
1829 dbg("write request of 0 bytes");
1830 return 0;
1831 }
22465400
IA		 1832 spin_lock_irqsave(&priv->tx_lock, flags);
1833 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1834 spin_unlock_irqrestore(&priv->tx_lock, flags);
759f3634 1835 dbg("%s - write limit hit", __func__);
22465400
IA		 1836 return 0;
1837 }
62127a58 1838 priv->tx_outstanding_urbs++;
22465400 1839 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1840
1da177e4 1841 data_offset = priv->write_offset;
464cbb24 1842 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1843
1844 /* Determine total transfer size */
1845 transfer_size = count;
1846 if (data_offset > 0) {
1847 /* Original sio needs control bytes too... */
1848 transfer_size += (data_offset *
895f28ba
MA		 1849 ((count + (priv->max_packet_size - 1 - data_offset)) /
1850 (priv->max_packet_size - data_offset)));
1da177e4
LT		 1851 }
1852
464cbb24 1853 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1854 if (!buffer) {
194343d9
GKH		 1855 dev_err(&port->dev,
1856 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1857 count = -ENOMEM;
1858 goto error_no_buffer;
1da177e4
LT		 1859 }
1860
1861 urb = usb_alloc_urb(0, GFP_ATOMIC);
1862 if (!urb) {
194343d9 1863 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1864 count = -ENOMEM;
1865 goto error_no_urb;
1da177e4
LT		 1866 }
1867
1868 /* Copy data */
1869 if (data_offset > 0) {
464cbb24
AC		 1870 /* Original sio requires control byte at start of
1871 each packet. */
895f28ba 1872 int user_pktsz = priv->max_packet_size - data_offset;
1da177e4
LT		 1873 int todo = count;
1874 unsigned char *first_byte = buffer;
1875 const unsigned char *current_position = buf;
1876
1877 while (todo > 0) {
464cbb24 1878 if (user_pktsz > todo)
1da177e4 1879 user_pktsz = todo;
1da177e4 1880 /* Write the control byte at the front of the packet*/
5c09d144 1881 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1882 /* Copy data for packet */
464cbb24 1883 memcpy(first_byte + data_offset,
1da177e4
LT		 1884 current_position, user_pktsz);
1885 first_byte += user_pktsz + data_offset;
1886 current_position += user_pktsz;
1887 todo -= user_pktsz;
1888 }
1889 } else {
1890 /* No control byte required. */
1891 /* Copy in the data to send */
464cbb24 1892 memcpy(buffer, buf, count);
1da177e4
LT		 1893 }
1894
464cbb24
AC		 1895 usb_serial_debug_data(debug, &port->dev, __func__,
1896 transfer_size, buffer);
1da177e4
LT		 1897
1898 /* fill the buffer and send it */
5c09d144 1899 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1900 usb_sndbulkpipe(port->serial->dev,
1901 port->bulk_out_endpointAddress),
1902 buffer, transfer_size,
1903 ftdi_write_bulk_callback, port);
1da177e4
LT		 1904
1905 status = usb_submit_urb(urb, GFP_ATOMIC);
1906 if (status) {
194343d9
GKH		 1907 dev_err(&port->dev,
1908 "%s - failed submitting write urb, error %d\n",
1909 __func__, status);
1da177e4 1910 count = status;
62127a58 1911 goto error;
22465400
IA		 1912 } else {
1913 spin_lock_irqsave(&priv->tx_lock, flags);
22465400 1914 priv->tx_outstanding_bytes += count;
22465400 1915 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1916 }
1917
1918 /* we are done with this urb, so let the host driver
1919 * really free it when it is finished with it */
62127a58 1920 usb_free_urb(urb);
1da177e4 1921
441b62c1 1922 dbg("%s write returning: %d", __func__, count);
1da177e4 1923 return count;
62127a58
ON		 1924error:
1925 usb_free_urb(urb);
1926error_no_urb:
464cbb24 1927 kfree(buffer);
62127a58
ON		 1928error_no_buffer:
1929 spin_lock_irqsave(&priv->tx_lock, flags);
1930 priv->tx_outstanding_urbs--;
1931 spin_unlock_irqrestore(&priv->tx_lock, flags);
1932 return count;
1da177e4
LT		 1933} /* ftdi_write */
1934
1935
1936/* This function may get called when the device is closed */
1937
464cbb24 1938static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1939{
22465400 1940 unsigned long flags;
cdc97792 1941 struct usb_serial_port *port = urb->context;
22465400
IA		 1942 struct ftdi_private *priv;
1943 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1944 unsigned long countback;
0fb0aa18 1945 int status = urb->status;
1da177e4
LT		 1946
1947 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1948 kfree(urb->transfer_buffer);
1da177e4 1949
441b62c1 1950 dbg("%s - port %d", __func__, port->number);
5c09d144 1951
22465400
IA		 1952 priv = usb_get_serial_port_data(port);
1953 if (!priv) {
441b62c1 1954 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1955 return;
1956 }
1957 /* account for transferred data */
0de6ab8b 1958 countback = urb->transfer_buffer_length;
22465400
IA		 1959 data_offset = priv->write_offset;
1960 if (data_offset > 0) {
1961 /* Subtract the control bytes */
895f28ba 1962 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
22465400
IA		 1963 }
1964 spin_lock_irqsave(&priv->tx_lock, flags);
1965 --priv->tx_outstanding_urbs;
1966 priv->tx_outstanding_bytes -= countback;
1967 spin_unlock_irqrestore(&priv->tx_lock, flags);
1968
87c1edd2
JW		 1969 if (status) {
1970 dbg("nonzero write bulk status received: %d", status);
87c1edd2
JW		 1971 }
1972
cf2c7481 1973 usb_serial_port_softint(port);
1da177e4
LT		 1974} /* ftdi_write_bulk_callback */
1975
1976
95da310e 1977static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1978{
95da310e 1979 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1980 struct ftdi_private *priv = usb_get_serial_port_data(port);
1981 int room;
1982 unsigned long flags;
1983
441b62c1 1984 dbg("%s - port %d", __func__, port->number);
1da177e4 1985
22465400
IA		 1986 spin_lock_irqsave(&priv->tx_lock, flags);
1987 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1988 /*
1989 * We really can take anything the user throws at us
1990 * but let's pick a nice big number to tell the tty
1991 * layer that we have lots of free space
1992 */
1993 room = 2048;
1994 } else {
1995 room = 0;
1996 }
1997 spin_unlock_irqrestore(&priv->tx_lock, flags);
1998 return room;
95da310e 1999}
1da177e4 2000
95da310e
AC		 2001static int ftdi_chars_in_buffer(struct tty_struct *tty)
2002{
2003 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 2004 struct ftdi_private *priv = usb_get_serial_port_data(port);
2005 int buffered;
2006 unsigned long flags;
2007
441b62c1 2008 dbg("%s - port %d", __func__, port->number);
1da177e4 2009
22465400
IA		 2010 spin_lock_irqsave(&priv->tx_lock, flags);
2011 buffered = (int)priv->tx_outstanding_bytes;
2012 spin_unlock_irqrestore(&priv->tx_lock, flags);
2013 if (buffered < 0) {
194343d9
GKH		 2014 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
2015 __func__);
22465400
IA		 2016 buffered = 0;
2017 }
2018 return buffered;
95da310e 2019}
1da177e4 2020
cc01f17d
JH		 2021static int ftdi_process_packet(struct tty_struct *tty,
2022 struct usb_serial_port *port, struct ftdi_private *priv,
2023 char *packet, int len)
95da310e 2024{
1da177e4 2025 int i;
cc01f17d
JH		 2026 char status;
2027 char flag;
2028 char *ch;
1da177e4 2029
441b62c1 2030 dbg("%s - port %d", __func__, port->number);
1da177e4 2031
cc01f17d
JH		 2032 if (len < 2) {
2033 dbg("malformed packet");
2034 return 0;
1da177e4
LT		 2035 }
2036
cc01f17d
JH		 2037 /* Compare new line status to the old one, signal if different/
2038 N.B. packet may be processed more than once, but differences
2039 are only processed once. */
2040 status = packet[0] & FTDI_STATUS_B0_MASK;
2041 if (status != priv->prev_status) {
2042 priv->diff_status |= status ^ priv->prev_status;
2043 wake_up_interruptible(&priv->delta_msr_wait);
2044 priv->prev_status = status;
1da177e4
LT		 2045 }
2046
cc01f17d
JH		 2047 /*
2048 * Although the device uses a bitmask and hence can have multiple
2049 * errors on a packet - the order here sets the priority the error is
2050 * returned to the tty layer.
2051 */
2052 flag = TTY_NORMAL;
2053 if (packet[1] & FTDI_RS_OE) {
2054 flag = TTY_OVERRUN;
2055 dbg("OVERRRUN error");
1da177e4 2056 }
cc01f17d
JH		 2057 if (packet[1] & FTDI_RS_BI) {
2058 flag = TTY_BREAK;
2059 dbg("BREAK received");
2060 usb_serial_handle_break(port);
2061 }
2062 if (packet[1] & FTDI_RS_PE) {
2063 flag = TTY_PARITY;
2064 dbg("PARITY error");
2065 }
2066 if (packet[1] & FTDI_RS_FE) {
2067 flag = TTY_FRAME;
2068 dbg("FRAMING error");
76854cea 2069 }
1da177e4 2070
cc01f17d
JH		 2071 len -= 2;
2072 if (!len)
2073 return 0; /* status only */
2074 ch = packet + 2;
2075
2076 if (!(port->console && port->sysrq) && flag == TTY_NORMAL)
2077 tty_insert_flip_string(tty, ch, len);
2078 else {
2079 for (i = 0; i < len; i++, ch++) {
2080 if (!usb_serial_handle_sysrq_char(tty, port, *ch))
2081 tty_insert_flip_char(tty, *ch, flag);
76854cea 2082 }
cc01f17d
JH		 2083 }
2084 return len;
2085}
76854cea 2086
cc01f17d
JH		 2087static void ftdi_process_read(struct usb_serial_port *port)
2088{
2089 struct urb *urb = port->read_urb;
2090 struct tty_struct *tty;
2091 struct ftdi_private *priv = usb_get_serial_port_data(port);
2092 char *data = (char *)urb->transfer_buffer;
2093 int i;
2094 int len;
2095 int count = 0;
1da177e4 2096
cc01f17d
JH		 2097 tty = tty_port_tty_get(&port->port);
2098 if (!tty)
2099 return;
1da177e4 2100
cc01f17d
JH		 2101 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2102 len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2103 count += ftdi_process_packet(tty, port, priv, &data[i], len);
2104 }
1da177e4 2105
cc01f17d 2106 if (count)
1da177e4 2107 tty_flip_buffer_push(tty);
cc01f17d
JH		 2108 tty_kref_put(tty);
2109}
1da177e4 2110
cc01f17d
JH		 2111static void ftdi_read_bulk_callback(struct urb *urb)
2112{
2113 struct usb_serial_port *port = urb->context;
2114 unsigned long flags;
76854cea 2115
cc01f17d 2116 dbg("%s - port %d", __func__, port->number);
1da177e4 2117
cc01f17d
JH		 2118 if (urb->status) {
2119 dbg("%s - nonzero read bulk status received: %d",
2120 __func__, urb->status);
2121 return;
1da177e4 2122 }
1da177e4 2123
cc01f17d
JH		 2124 usb_serial_debug_data(debug, &port->dev, __func__,
2125 urb->actual_length, urb->transfer_buffer);
2126 ftdi_process_read(port);
2127
2128 spin_lock_irqsave(&port->lock, flags);
2129 port->throttled = port->throttle_req;
2130 if (!port->throttled) {
2131 spin_unlock_irqrestore(&port->lock, flags);
2132 ftdi_submit_read_urb(port, GFP_ATOMIC);
2133 } else
2134 spin_unlock_irqrestore(&port->lock, flags);
2135}
1da177e4 2136
95da310e 2137static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2138{
95da310e 2139 struct usb_serial_port *port = tty->driver_data;
1da177e4 2140 struct ftdi_private *priv = usb_get_serial_port_data(port);
c1284d77 2141 __u16 urb_value;
5c09d144 2142
1da177e4
LT		 2143 /* break_state = -1 to turn on break, and 0 to turn off break */
2144 /* see drivers/char/tty_io.c to see it used */
2145 /* last_set_data_urb_value NEVER has the break bit set in it */
2146
464cbb24 2147 if (break_state)
1da177e4 2148 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2149 else
5c09d144 2150 urb_value = priv->last_set_data_urb_value;
5c09d144 2151
464cbb24
AC		 2152 if (usb_control_msg(port->serial->dev,
2153 usb_sndctrlpipe(port->serial->dev, 0),
2154 FTDI_SIO_SET_DATA_REQUEST,
2155 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2156 urb_value , priv->interface,
66e47e60 2157 NULL, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2158 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2159 "(state was %d)\n", __func__, break_state);
5c09d144 2160 }
1da177e4 2161
464cbb24
AC		 2162 dbg("%s break state is %d - urb is %d", __func__,
2163 break_state, urb_value);
5c09d144 2164
1da177e4
LT		 2165}
2166
2167
2168/* old_termios contains the original termios settings and tty->termios contains
2169 * the new setting to be used
2170 * WARNING: set_termios calls this with old_termios in kernel space
2171 */
2172
95da310e
AC		 2173static void ftdi_set_termios(struct tty_struct *tty,
2174 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2175{ /* ftdi_termios */
2176 struct usb_device *dev = port->serial->dev;
1da177e4 2177 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2178 struct ktermios *termios = tty->termios;
669a6db1 2179 unsigned int cflag = termios->c_cflag;
1da177e4 2180 __u16 urb_value; /* will hold the new flags */
5c09d144 2181
464cbb24 2182 /* Added for xon/xoff support */
669a6db1 2183 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2184 unsigned char vstop;
2185 unsigned char vstart;
5c09d144 2186
441b62c1 2187 dbg("%s", __func__);
1da177e4 2188
464cbb24
AC		 2189 /* Force baud rate if this device requires it, unless it is set to
2190 B0. */
669a6db1 2191 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2192 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2193 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2194 priv->force_baud);
1da177e4
LT		 2195 }
2196
2197 /* Force RTS-CTS if this device requires it. */
2198 if (priv->force_rtscts) {
441b62c1 2199 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2200 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2201 }
2202
669a6db1 2203 cflag = termios->c_cflag;
1da177e4 2204
5c09d144
DB		 2205 /* FIXME -For this cut I don't care if the line is really changing or
2206 not - so just do the change regardless - should be able to
1da177e4 2207 compare old_termios and tty->termios */
5c09d144 2208 /* NOTE These routines can get interrupted by
464cbb24
AC		 2209 ftdi_sio_read_bulk_callback - need to examine what this means -
2210 don't see any problems yet */
5c09d144 2211
1da177e4 2212 /* Set number of data bits, parity, stop bits */
5c09d144 2213
1da177e4
LT		 2214 urb_value = 0;
2215 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2216 FTDI_SIO_SET_DATA_STOP_BITS_1);
38fcb830
RK		 2217 if (cflag & PARENB) {
2218 if (cflag & CMSPAR)
2219 urb_value |= cflag & PARODD ?
2220 FTDI_SIO_SET_DATA_PARITY_MARK :
2221 FTDI_SIO_SET_DATA_PARITY_SPACE;
2222 else
2223 urb_value |= cflag & PARODD ?
2224 FTDI_SIO_SET_DATA_PARITY_ODD :
2225 FTDI_SIO_SET_DATA_PARITY_EVEN;
2226 } else {
2227 urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2228 }
1da177e4
LT		 2229 if (cflag & CSIZE) {
2230 switch (cflag & CSIZE) {
1da177e4
LT		 2231 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2232 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2233 default:
cabe6cc2 2234 dev_err(&port->dev, "CSIZE was set but not CS7-CS8\n");
1da177e4
LT		 2235 }
2236 }
2237
464cbb24
AC		 2238 /* This is needed by the break command since it uses the same command
2239 - but is or'ed with this value */
1da177e4 2240 priv->last_set_data_urb_value = urb_value;
5c09d144 2241
1da177e4 2242 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2243 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2244 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2245 urb_value , priv->interface,
66e47e60 2246 NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2247 dev_err(&port->dev, "%s FAILED to set "
2248 "databits/stopbits/parity\n", __func__);
5c09d144 2249 }
1da177e4
LT		 2250
2251 /* Now do the baudrate */
464cbb24 2252 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2253 /* Disable flow control */
2254 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2255 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2256 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2257 0, priv->interface,
66e47e60 2258 NULL, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2259 dev_err(&port->dev,
2260 "%s error from disable flowcontrol urb\n",
2261 __func__);
5c09d144 2262 }
1da177e4 2263 /* Drop RTS and DTR */
74ede0ff 2264 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2265 } else {
2266 /* set the baudrate determined before */
464cbb24 2267 if (change_speed(tty, port))
194343d9
GKH		 2268 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2269 __func__);
72a755fc 2270 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2271 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2272 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2273 }
2274
2275 /* Set flow control */
2276 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2277 if (cflag & CRTSCTS) {
441b62c1 2278 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2279 if (usb_control_msg(dev,
1da177e4 2280 usb_sndctrlpipe(dev, 0),
5c09d144 2281 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2282 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2283 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
66e47e60 2284 NULL, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2285 dev_err(&port->dev,
2286 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2287 }
2288
2289 } else {
1da177e4
LT		 2290 /*
2291 * Xon/Xoff code
2292 *
464cbb24
AC		 2293 * Check the IXOFF status in the iflag component of the
2294 * termios structure. If IXOFF is not set, the pre-xon/xoff
2295 * code is executed.
2296 */
1da177e4 2297 if (iflag & IXOFF) {
464cbb24
AC		 2298 dbg("%s request to enable xonxoff iflag=%04x",
2299 __func__, iflag);
2300 /* Try to enable the XON/XOFF on the ftdi_sio
2301 * Set the vstart and vstop -- could have been done up
2302 * above where a lot of other dereferencing is done but
2303 * that would be very inefficient as vstart and vstop
2304 * are not always needed.
2305 */
669a6db1
AC		 2306 vstart = termios->c_cc[VSTART];
2307 vstop = termios->c_cc[VSTOP];
464cbb24 2308 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2309
2310 if (usb_control_msg(dev,
2311 usb_sndctrlpipe(dev, 0),
2312 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2313 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2314 urb_value , (FTDI_SIO_XON_XOFF_HS
2315 | priv->interface),
66e47e60 2316 NULL, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2317 dev_err(&port->dev, "urb failed to set to "
2318 "xon/xoff flow control\n");
1da177e4
LT		 2319 }
2320 } else {
464cbb24
AC		 2321 /* else clause to only run if cflag ! CRTSCTS and iflag
2322 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2323 * stack - not by device */
441b62c1 2324 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2325 if (usb_control_msg(dev,
1da177e4 2326 usb_sndctrlpipe(dev, 0),
5c09d144 2327 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2328 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2329 0, priv->interface,
66e47e60 2330 NULL, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2331 dev_err(&port->dev,
2332 "urb failed to clear flow control\n");
5c09d144 2333 }
1da177e4 2334 }
5c09d144 2335
1da177e4
LT		 2336 }
2337 return;
95da310e 2338}
1da177e4 2339
95da310e 2340static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2341{
95da310e 2342 struct usb_serial_port *port = tty->driver_data;
1da177e4 2343 struct ftdi_private *priv = usb_get_serial_port_data(port);
66e47e60 2344 unsigned char *buf;
a3f8168b 2345 int len;
1da177e4
LT		 2346 int ret;
2347
441b62c1 2348 dbg("%s TIOCMGET", __func__);
66e47e60
JH		 2349
2350 buf = kmalloc(2, GFP_KERNEL);
2351 if (!buf)
2352 return -ENOMEM;
a3f8168b
JH		 2353 /*
2354 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2355 * the same format as the data returned from the in point.
2356 */
1da177e4
LT		 2357 switch (priv->chip_type) {
2358 case SIO:
a3f8168b 2359 len = 1;
1da177e4
LT		 2360 break;
2361 case FT8U232AM:
2362 case FT232BM:
2363 case FT2232C:
ed6e5282 2364 case FT232RL:
094c2e6d
MA		 2365 case FT2232H:
2366 case FT4232H:
a3f8168b 2367 len = 2;
1da177e4
LT		 2368 break;
2369 default:
66e47e60
JH		 2370 ret = -EFAULT;
2371 goto out;
1da177e4 2372 }
5c09d144 2373
a3f8168b
JH		 2374 ret = usb_control_msg(port->serial->dev,
2375 usb_rcvctrlpipe(port->serial->dev, 0),
2376 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2377 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2378 0, priv->interface,
2379 buf, len, WDR_TIMEOUT);
2380 if (ret < 0)
2381 goto out;
2382
66e47e60 2383 ret = (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
1da177e4
LT		 2384 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2385 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2386 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2387 priv->last_dtr_rts;
66e47e60
JH		 2388out:
2389 kfree(buf);
2390 return ret;
1da177e4
LT		 2391}
2392
464cbb24 2393static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2394 unsigned int set, unsigned int clear)
1da177e4 2395{
95da310e 2396 struct usb_serial_port *port = tty->driver_data;
441b62c1 2397 dbg("%s TIOCMSET", __func__);
74ede0ff 2398 return update_mctrl(port, set, clear);
1da177e4
LT		 2399}
2400
2401
464cbb24
AC		 2402static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2403 unsigned int cmd, unsigned long arg)
1da177e4 2404{
95da310e 2405 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2406 struct ftdi_private *priv = usb_get_serial_port_data(port);
2407
441b62c1 2408 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2409
2410 /* Based on code from acm.c and others */
2411 switch (cmd) {
2412
1da177e4 2413 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2414 return get_serial_info(port,
2415 (struct serial_struct __user *) arg);
1da177e4
LT		 2416
2417 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2418 return set_serial_info(tty, port,
2419 (struct serial_struct __user *) arg);
1da177e4
LT		 2420
2421 /*
2422 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2423 * - mask passed in arg for lines of interest
2424 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2425 * Caller should use TIOCGICOUNT to see which one it was.
2426 *
2427 * This code is borrowed from linux/drivers/char/serial.c
2428 */
2429 case TIOCMIWAIT:
2430 while (priv != NULL) {
2431 interruptible_sleep_on(&priv->delta_msr_wait);
2432 /* see if a signal did it */
2433 if (signal_pending(current))
2434 return -ERESTARTSYS;
2435 else {
2436 char diff = priv->diff_status;
2437
464cbb24 2438 if (diff == 0)
1da177e4 2439 return -EIO; /* no change => error */
1da177e4
LT		 2440
2441 /* Consume all events */
2442 priv->diff_status = 0;
2443
464cbb24
AC		 2444 /* Return 0 if caller wanted to know about
2445 these bits */
2446 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2447 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2448 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2449 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2450 return 0;
2451 }
2452 /*
464cbb24
AC		 2453 * Otherwise caller can't care less about what
2454 * happened,and so we continue to wait for more
2455 * events.
1da177e4
LT		 2456 */
2457 }
2458 }
95da310e 2459 return 0;
1da177e4
LT		 2460 default:
2461 break;
1da177e4 2462 }
464cbb24
AC		 2463 /* This is not necessarily an error - turns out the higher layers
2464 * will do some ioctls themselves (see comment above)
1da177e4 2465 */
441b62c1 2466 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2467 return -ENOIOCTLCMD;
2468}
1da177e4 2469
95da310e 2470static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2471{
95da310e 2472 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2473 unsigned long flags;
2474
441b62c1 2475 dbg("%s - port %d", __func__, port->number);
1da177e4 2476
cc01f17d
JH		 2477 spin_lock_irqsave(&port->lock, flags);
2478 port->throttle_req = 1;
2479 spin_unlock_irqrestore(&port->lock, flags);
1da177e4
LT		 2480}
2481
cc01f17d 2482void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2483{
95da310e 2484 struct usb_serial_port *port = tty->driver_data;
cc01f17d 2485 int was_throttled;
1da177e4
LT		 2486 unsigned long flags;
2487
441b62c1 2488 dbg("%s - port %d", __func__, port->number);
1da177e4 2489
cc01f17d
JH		 2490 spin_lock_irqsave(&port->lock, flags);
2491 was_throttled = port->throttled;
2492 port->throttled = port->throttle_req = 0;
2493 spin_unlock_irqrestore(&port->lock, flags);
1da177e4 2494
cc01f17d
JH		 2495 /* Resubmit urb if throttled and open. */
2496 if (was_throttled && test_bit(ASYNCB_INITIALIZED, &port->port.flags))
2497 ftdi_submit_read_urb(port, GFP_KERNEL);
1da177e4
LT		 2498}
2499
464cbb24 2500static int __init ftdi_init(void)
1da177e4
LT		 2501{
2502 int retval;
2503
441b62c1 2504 dbg("%s", __func__);
fdcb0a0f
IA		 2505 if (vendor > 0 && product > 0) {
2506 /* Add user specified VID/PID to reserved element of table. */
2507 int i;
2508 for (i = 0; id_table_combined[i].idVendor; i++)
2509 ;
2510 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2511 id_table_combined[i].idVendor = vendor;
2512 id_table_combined[i].idProduct = product;
2513 }
8f977e42 2514 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2515 if (retval)
8f977e42 2516 goto failed_sio_register;
1da177e4 2517 retval = usb_register(&ftdi_driver);
5c09d144 2518 if (retval)
1da177e4
LT		 2519 goto failed_usb_register;
2520
c197a8db
GKH		 2521 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2522 DRIVER_DESC "\n");
1da177e4
LT		 2523 return 0;
2524failed_usb_register:
8f977e42
IA		 2525 usb_serial_deregister(&ftdi_sio_device);
2526failed_sio_register:
1da177e4
LT		 2527 return retval;
2528}
2529
2530
464cbb24 2531static void __exit ftdi_exit(void)
1da177e4
LT		 2532{
2533
441b62c1 2534 dbg("%s", __func__);
1da177e4 2535
464cbb24
AC		 2536 usb_deregister(&ftdi_driver);
2537 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2538
2539}
2540
2541
2542module_init(ftdi_init);
2543module_exit(ftdi_exit);
2544
464cbb24
AC		 2545MODULE_AUTHOR(DRIVER_AUTHOR);
2546MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2547MODULE_LICENSE("GPL");
2548
2549module_param(debug, bool, S_IRUGO | S_IWUSR);
2550MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2551module_param(vendor, ushort, 0);
2552MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2553 __MODULE_STRING(FTDI_VID)")");
2554module_param(product, ushort, 0);
68265043 2555MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2556
b760dac2
MG		 2557module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2558MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
Linux kernel - Deliverables
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