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USB: storage: Remove unneeded SC/PR from unusual_devs.h
[net-next-2.6.git] / drivers / usb / serial / ftdi_sio.c
CommitLineData
1da177e4
LT		 1/*
2 * USB FTDI SIO driver
3 *
5c09d144
DB		 4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
1da177e4
LT		 6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
5c09d144
DB		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
1da177e4 14 *
464cbb24
AC		 15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
1da177e4
LT		 17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
504b55cc
GKH		 21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 23 *
24 */
25
26/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27/* Thanx to FTDI for so kindly providing details of the protocol required */
28/* to talk to the device */
464cbb24
AC		 29/* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
1da177e4 31
1da177e4
LT		 32#include <linux/kernel.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/slab.h>
405f5571 36#include <linux/smp_lock.h>
1da177e4
LT		 37#include <linux/tty.h>
38#include <linux/tty_driver.h>
39#include <linux/tty_flip.h>
40#include <linux/module.h>
41#include <linux/spinlock.h>
464cbb24 42#include <linux/uaccess.h>
1da177e4
LT		 43#include <linux/usb.h>
44#include <linux/serial.h>
a969888c 45#include <linux/usb/serial.h>
1da177e4 46#include "ftdi_sio.h"
31844d55 47#include "ftdi_sio_ids.h"
1da177e4
LT		 48
49/*
50 * Version Information
51 */
094c2e6d 52#define DRIVER_VERSION "v1.5.0"
1da177e4
LT		 53#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
54#define DRIVER_DESC "USB FTDI Serial Converters Driver"
55
56static int debug;
fdcb0a0f
IA		 57static __u16 vendor = FTDI_VID;
58static __u16 product;
1da177e4 59
0ffbbe25 60struct ftdi_private {
c45d6320 61 struct kref kref;
0ffbbe25 62 ftdi_chip_type_t chip_type;
464cbb24 63 /* type of device, either SIO or FT8U232AM */
0ffbbe25 64 int baud_base; /* baud base clock for divisor setting */
464cbb24
AC		 65 int custom_divisor; /* custom_divisor kludge, this is for
66 baud_base (different from what goes to the
67 chip!) */
0ffbbe25 68 __u16 last_set_data_urb_value ;
464cbb24
AC		 69 /* the last data state set - needed for doing
70 * a break
71 */
72 int write_offset; /* This is the offset in the usb data block to
73 * write the serial data - it varies between
74 * devices
0ffbbe25
ON		 75 */
76 int flags; /* some ASYNC_xxxx flags are supported */
77 unsigned long last_dtr_rts; /* saved modem control outputs */
464cbb24 78 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
0ffbbe25 79 char prev_status, diff_status; /* Used for TIOCMIWAIT */
0ffbbe25 80 struct usb_serial_port *port;
094c2e6d
MA		 81 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface
82 (0 for FT232/245) */
0ffbbe25 83
464cbb24
AC		 84 speed_t force_baud; /* if non-zero, force the baud rate to
85 this value */
86 int force_rtscts; /* if non-zero, force RTS-CTS to always
87 be enabled */
0ffbbe25 88
557aaa7f 89 unsigned int latency; /* latency setting in use */
0ffbbe25
ON		 90 spinlock_t tx_lock; /* spinlock for transmit state */
91 unsigned long tx_bytes;
92 unsigned long tx_outstanding_bytes;
93 unsigned long tx_outstanding_urbs;
895f28ba 94 unsigned short max_packet_size;
0ffbbe25
ON		 95};
96
8f977e42
IA		 97/* struct ftdi_sio_quirk is used by devices requiring special attention. */
98struct ftdi_sio_quirk {
fa91d43b 99 int (*probe)(struct usb_serial *);
464cbb24
AC		 100 /* Special settings for probed ports. */
101 void (*port_probe)(struct ftdi_private *);
8f977e42
IA		 102};
103
464cbb24
AC		 104static int ftdi_jtag_probe(struct usb_serial *serial);
105static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
b760dac2 106static int ftdi_NDI_device_setup(struct usb_serial *serial);
464cbb24
AC		 107static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
108static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 109
20734345
HW		 110static struct ftdi_sio_quirk ftdi_jtag_quirk = {
111 .probe = ftdi_jtag_probe,
fa91d43b
TL		 112};
113
546d7eec
KV		 114static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
115 .probe = ftdi_mtxorb_hack_setup,
116};
117
b760dac2
MG		 118static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
119 .probe = ftdi_NDI_device_setup,
120};
121
8f977e42 122static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 123 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 124};
125
126static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 127 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 128};
129
130/*
131 * The 8U232AM has the same API as the sio except for:
132 * - it can support MUCH higher baudrates; up to:
133 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
134 * o 230400 at 12MHz
135 * so .. 8U232AM's baudrate setting codes are different
136 * - it has a two byte status code.
137 * - it returns characters every 16ms (the FTDI does it every 40ms)
138 *
139 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
140 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
141 * combinations in both tables.
8f977e42
IA		 142 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
143 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 144 */
145
146
1da177e4
LT		 147
148static struct usb_device_id id_table_combined [] = {
2011e924
JD		 149 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
01ba0856 151 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
6e1ab3ed
PM		 152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 160 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 161 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 162 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 163 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 164 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 165 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 168 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 169 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
094c2e6d 170 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
c0f8d561 171 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 172 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 173 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
ec3815c3 174 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
1da177e4
LT		 177 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
178 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
f2ee6955 179 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
1da177e4
LT		 180 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
189 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 191 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
194 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
195 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
b34efeea 198 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
464cbb24
AC		 199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 239 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 245 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 285 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 287 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 289 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 291 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 293 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 295 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 463 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 464 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 465 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 466 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
514 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
515 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 516 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
517 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
518 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
519 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 520 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
521 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
522 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
523 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 540 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 541 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 542 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 544 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 545 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 546 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 554 /*
42f8aa94
PS		 555 * Due to many user requests for multiple ELV devices we enable
556 * them by default.
e6ac4a40 557 */
42f8aa94
PS		 558 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 576 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 577 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 578 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
5c09d144
DB		 579 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
580 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
581 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
582 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
583 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
584 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
585 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 586 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
9d37ff64
JC		 587 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
588 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
589 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
1da177e4
LT		 590 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
591 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
592 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
593 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 594 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 595 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
c3d36c45 596 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
ef31fec0 597 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 598 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 599 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
600 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
601 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
a8cbd90a
CB		 602 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
603 { USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
604 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
605 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
606 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
607 { USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
608 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
609 { USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
610 { USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
611 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
612 { USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
613 { USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
614 { USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
615 { USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
1da177e4 616 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 617 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 619 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
620 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
621 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
622 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
623 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
624 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
625 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
626 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 627 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 628 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 629 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
630 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 631 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
632 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 633 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
634 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
635 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
636 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 637 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
638 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 639 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 640 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
641 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 642 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
643 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 644 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 645 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 646 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 647 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 648 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
649 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 650 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 651 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 652 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 653 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
654 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 655 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 656 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 657 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 658 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 659 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 660 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 661 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 662 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 663 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 664 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 665 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
666 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
667 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 668 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
b760dac2
MG		 669 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
670 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
671 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
672 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
673 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
674 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
675 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
676 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
677 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
678 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
822c7ef4 679 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 680 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 681 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 682 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 683 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 684 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 685 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 686 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
687 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
688 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
689 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
690 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 691 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
692 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
693 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
694 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
14511412
KH		 695 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
696 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 697 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 698 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 699 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
a7787e50 700 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
96285cb8
GC		 701 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
702 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 703 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 704 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
7f82b6dd
AW		 705 { USB_DEVICE(ATMEL_VID, STK541_PID) },
706 { USB_DEVICE(DE_VID, STB_PID) },
707 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 708 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
709 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
11eaf170
MH		 710 { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
711 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 712 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 713 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
714 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
d46130ab 715 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
fca4404c 716 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
c47aacc6 717 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
50d0678e
DV		 718 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
719 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
e7d7fcc0
PL		 720 { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
721 { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
fdcb0a0f
IA		 722 { }, /* Optional parameter entry */
723 { } /* Terminating entry */
1da177e4
LT		 724};
725
464cbb24 726MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 727
728static struct usb_driver ftdi_driver = {
729 .name = "ftdi_sio",
730 .probe = usb_serial_probe,
731 .disconnect = usb_serial_disconnect,
732 .id_table = id_table_combined,
5c09d144 733 .no_dynamic_id = 1,
1da177e4
LT		 734};
735
4c4c9432 736static const char *ftdi_chip_name[] = {
1da177e4
LT		 737 [SIO] = "SIO", /* the serial part of FT8U100AX */
738 [FT8U232AM] = "FT8U232AM",
739 [FT232BM] = "FT232BM",
740 [FT2232C] = "FT2232C",
d8b21606 741 [FT232RL] = "FT232RL",
094c2e6d
MA		 742 [FT2232H] = "FT2232H",
743 [FT4232H] = "FT4232H"
1da177e4
LT		 744};
745
746
747/* Constants for read urb and write urb */
748#define BUFSZ 512
1da177e4 749
1da177e4
LT		 750/* Used for TIOCMIWAIT */
751#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
752#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
753/* End TIOCMIWAIT */
754
bbc5d276
RK		 755#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
756 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 757
758/* function prototypes for a FTDI serial converter */
464cbb24
AC		 759static int ftdi_sio_probe(struct usb_serial *serial,
760 const struct usb_device_id *id);
464cbb24
AC		 761static int ftdi_sio_port_probe(struct usb_serial_port *port);
762static int ftdi_sio_port_remove(struct usb_serial_port *port);
a509a7e4 763static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
335f8514
AC		 764static void ftdi_close(struct usb_serial_port *port);
765static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 766static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
767 const unsigned char *buf, int count);
768static int ftdi_write_room(struct tty_struct *tty);
769static int ftdi_chars_in_buffer(struct tty_struct *tty);
770static void ftdi_write_bulk_callback(struct urb *urb);
771static void ftdi_read_bulk_callback(struct urb *urb);
cc01f17d 772static void ftdi_process_read(struct usb_serial_port *port);
464cbb24
AC		 773static void ftdi_set_termios(struct tty_struct *tty,
774 struct usb_serial_port *port, struct ktermios *old);
775static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
776static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
777 unsigned int set, unsigned int clear);
778static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
779 unsigned int cmd, unsigned long arg);
780static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
781static void ftdi_throttle(struct tty_struct *tty);
782static void ftdi_unthrottle(struct tty_struct *tty);
783
784static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
785static unsigned short int ftdi_232am_baud_to_divisor(int baud);
786static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
787static __u32 ftdi_232bm_baud_to_divisor(int baud);
094c2e6d
MA		 788static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
789static __u32 ftdi_2232h_baud_to_divisor(int baud);
1da177e4 790
ea65370d 791static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 792 .driver = {
793 .owner = THIS_MODULE,
269bda1c 794 .name = "ftdi_sio",
18fcac35 795 },
269bda1c 796 .description = "FTDI USB Serial Device",
d9b1b787 797 .usb_driver = &ftdi_driver ,
8f977e42 798 .id_table = id_table_combined,
1da177e4 799 .num_ports = 1,
8f977e42 800 .probe = ftdi_sio_probe,
12bdbe03
JR		 801 .port_probe = ftdi_sio_port_probe,
802 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 803 .open = ftdi_open,
804 .close = ftdi_close,
335f8514 805 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 806 .throttle = ftdi_throttle,
807 .unthrottle = ftdi_unthrottle,
808 .write = ftdi_write,
809 .write_room = ftdi_write_room,
810 .chars_in_buffer = ftdi_chars_in_buffer,
811 .read_bulk_callback = ftdi_read_bulk_callback,
812 .write_bulk_callback = ftdi_write_bulk_callback,
813 .tiocmget = ftdi_tiocmget,
814 .tiocmset = ftdi_tiocmset,
815 .ioctl = ftdi_ioctl,
816 .set_termios = ftdi_set_termios,
817 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 818};
819
1da177e4
LT		 820
821#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 822#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 823
824/* High and low are for DTR, RTS etc etc */
825#define HIGH 1
826#define LOW 0
827
22465400
IA		 828/* number of outstanding urbs to prevent userspace DoS from happening */
829#define URB_UPPER_LIMIT 42
830
1da177e4
LT		 831/*
832 * ***************************************************************************
fa91d43b 833 * Utility functions
1da177e4
LT		 834 * ***************************************************************************
835 */
836
837static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
838{
839 unsigned short int divisor;
464cbb24
AC		 840 /* divisor shifted 3 bits to the left */
841 int divisor3 = base / 2 / baud;
842 if ((divisor3 & 0x7) == 7)
843 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 844 divisor = divisor3 >> 3;
845 divisor3 &= 0x7;
464cbb24
AC		 846 if (divisor3 == 1)
847 divisor |= 0xc000;
848 else if (divisor3 >= 4)
849 divisor |= 0x4000;
850 else if (divisor3 != 0)
851 divisor |= 0x8000;
852 else if (divisor == 1)
853 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 854 return divisor;
855}
856
857static unsigned short int ftdi_232am_baud_to_divisor(int baud)
858{
464cbb24 859 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 860}
861
862static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
863{
864 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
865 __u32 divisor;
464cbb24
AC		 866 /* divisor shifted 3 bits to the left */
867 int divisor3 = base / 2 / baud;
1da177e4
LT		 868 divisor = divisor3 >> 3;
869 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
870 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 871 if (divisor == 1)
872 divisor = 0;
873 else if (divisor == 0x4001)
874 divisor = 1;
1da177e4
LT		 875 return divisor;
876}
877
878static __u32 ftdi_232bm_baud_to_divisor(int baud)
879{
464cbb24 880 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 881}
882
094c2e6d
MA		 883static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
884{
885 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
886 __u32 divisor;
887 int divisor3;
888
889 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
890 divisor3 = (base / 10 / baud) * 8;
891
892 divisor = divisor3 >> 3;
893 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
894 /* Deal with special cases for highest baud rates. */
895 if (divisor == 1)
896 divisor = 0;
897 else if (divisor == 0x4001)
898 divisor = 1;
899 /*
900 * Set this bit to turn off a divide by 2.5 on baud rate generator
901 * This enables baud rates up to 12Mbaud but cannot reach below 1200
902 * baud with this bit set
903 */
904 divisor |= 0x00020000;
905 return divisor;
906}
907
908static __u32 ftdi_2232h_baud_to_divisor(int baud)
909{
910 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
911}
912
74ede0ff
IA		 913#define set_mctrl(port, set) update_mctrl((port), (set), 0)
914#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
915
464cbb24
AC		 916static int update_mctrl(struct usb_serial_port *port, unsigned int set,
917 unsigned int clear)
1da177e4
LT		 918{
919 struct ftdi_private *priv = usb_get_serial_port_data(port);
920 char *buf;
74ede0ff 921 unsigned urb_value;
1da177e4 922 int rv;
1da177e4 923
74ede0ff 924 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 925 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 926 return 0; /* no change */
927 }
1da177e4 928
1da177e4 929 buf = kmalloc(1, GFP_NOIO);
9b0f2582 930 if (!buf)
1da177e4 931 return -ENOMEM;
74ede0ff
IA		 932
933 clear &= ~set; /* 'set' takes precedence over 'clear' */
934 urb_value = 0;
935 if (clear & TIOCM_DTR)
936 urb_value |= FTDI_SIO_SET_DTR_LOW;
937 if (clear & TIOCM_RTS)
938 urb_value |= FTDI_SIO_SET_RTS_LOW;
939 if (set & TIOCM_DTR)
940 urb_value |= FTDI_SIO_SET_DTR_HIGH;
941 if (set & TIOCM_RTS)
942 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 943 rv = usb_control_msg(port->serial->dev,
944 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 945 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 946 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 947 urb_value, priv->interface,
1da177e4
LT		 948 buf, 0, WDR_TIMEOUT);
949
950 kfree(buf);
74ede0ff 951 if (rv < 0) {
43b11d33 952 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 953 __func__,
74ede0ff
IA		 954 (set & TIOCM_DTR) ? "HIGH" :
955 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
956 (set & TIOCM_RTS) ? "HIGH" :
957 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
958 } else {
441b62c1 959 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 960 (set & TIOCM_DTR) ? "HIGH" :
961 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
962 (set & TIOCM_RTS) ? "HIGH" :
963 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 964 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 965 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
966 }
1da177e4
LT		 967 return rv;
968}
969
970
464cbb24
AC		 971static __u32 get_ftdi_divisor(struct tty_struct *tty,
972 struct usb_serial_port *port)
1da177e4
LT		 973{ /* get_ftdi_divisor */
974 struct ftdi_private *priv = usb_get_serial_port_data(port);
975 __u32 div_value = 0;
976 int div_okay = 1;
977 int baud;
978
979 /*
464cbb24
AC		 980 * The logic involved in setting the baudrate can be cleanly split into
981 * 3 steps.
1da177e4 982 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 983 * 2. If these are not enough, you can set any speed using alt_speed as
984 * follows:
1da177e4
LT		 985 * - set tty->termios->c_cflag speed to B38400
986 * - set your real speed in tty->alt_speed; it gets ignored when
987 * alt_speed==0, (or)
464cbb24
AC		 988 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
989 * follows:
990 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
991 * this just sets alt_speed to (HI: 57600, VHI: 115200,
992 * SHI: 230400, WARP: 460800)
1da177e4
LT		 993 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
994 * 3. You can also set baud rate by setting custom divisor as follows
995 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 996 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
997 * follows:
1da177e4
LT		 998 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
999 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 1000 * ** Step 3 is done courtesy of code borrowed from serial.c
1001 * I should really spend some time and separate + move this common
1002 * code to serial.c, it is replicated in nearly every serial driver
1003 * you see.
1da177e4
LT		 1004 */
1005
464cbb24
AC		 1006 /* 1. Get the baud rate from the tty settings, this observes
1007 alt_speed hack */
1da177e4 1008
95da310e 1009 baud = tty_get_baud_rate(tty);
441b62c1 1010 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 1011
464cbb24
AC		 1012 /* 2. Observe async-compatible custom_divisor hack, update baudrate
1013 if needed */
1da177e4
LT		 1014
1015 if (baud == 38400 &&
1016 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1017 (priv->custom_divisor)) {
1018 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 1019 dbg("%s - custom divisor %d sets baud rate to %d",
1020 __func__, priv->custom_divisor, baud);
1da177e4
LT		 1021 }
1022
1023 /* 3. Convert baudrate to device-specific divisor */
1024
464cbb24
AC		 1025 if (!baud)
1026 baud = 9600;
1027 switch (priv->chip_type) {
1da177e4 1028 case SIO: /* SIO chip */
464cbb24 1029 switch (baud) {
1da177e4
LT		 1030 case 300: div_value = ftdi_sio_b300; break;
1031 case 600: div_value = ftdi_sio_b600; break;
1032 case 1200: div_value = ftdi_sio_b1200; break;
1033 case 2400: div_value = ftdi_sio_b2400; break;
1034 case 4800: div_value = ftdi_sio_b4800; break;
1035 case 9600: div_value = ftdi_sio_b9600; break;
1036 case 19200: div_value = ftdi_sio_b19200; break;
1037 case 38400: div_value = ftdi_sio_b38400; break;
1038 case 57600: div_value = ftdi_sio_b57600; break;
1039 case 115200: div_value = ftdi_sio_b115200; break;
1040 } /* baud */
1041 if (div_value == 0) {
464cbb24
AC		 1042 dbg("%s - Baudrate (%d) requested is not supported",
1043 __func__, baud);
1da177e4 1044 div_value = ftdi_sio_b9600;
bd5e47cc 1045 baud = 9600;
1da177e4
LT		 1046 div_okay = 0;
1047 }
1048 break;
1049 case FT8U232AM: /* 8U232AM chip */
1050 if (baud <= 3000000) {
1051 div_value = ftdi_232am_baud_to_divisor(baud);
1052 } else {
464cbb24 1053 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 1054 baud = 9600;
1da177e4
LT		 1055 div_value = ftdi_232am_baud_to_divisor(9600);
1056 div_okay = 0;
1057 }
1058 break;
1059 case FT232BM: /* FT232BM chip */
1060 case FT2232C: /* FT2232C chip */
3b009c63 1061 case FT232RL:
1da177e4 1062 if (baud <= 3000000) {
b760dac2
MG		 1063 __u16 product_id = le16_to_cpu(
1064 port->serial->dev->descriptor.idProduct);
1065 if (((FTDI_NDI_HUC_PID == product_id) ||
1066 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1067 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1068 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1069 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1070 (baud == 19200)) {
1071 baud = 1200000;
1072 }
1da177e4
LT		 1073 div_value = ftdi_232bm_baud_to_divisor(baud);
1074 } else {
464cbb24 1075 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 1076 div_value = ftdi_232bm_baud_to_divisor(9600);
1077 div_okay = 0;
669a6db1 1078 baud = 9600;
1da177e4
LT		 1079 }
1080 break;
094c2e6d
MA		 1081 case FT2232H: /* FT2232H chip */
1082 case FT4232H: /* FT4232H chip */
1083 if ((baud <= 12000000) & (baud >= 1200)) {
1084 div_value = ftdi_2232h_baud_to_divisor(baud);
1085 } else if (baud < 1200) {
1086 div_value = ftdi_232bm_baud_to_divisor(baud);
1087 } else {
1088 dbg("%s - Baud rate too high!", __func__);
1089 div_value = ftdi_232bm_baud_to_divisor(9600);
1090 div_okay = 0;
1091 baud = 9600;
1092 }
1093 break;
1da177e4
LT		 1094 } /* priv->chip_type */
1095
1096 if (div_okay) {
1097 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1098 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1099 ftdi_chip_name[priv->chip_type]);
1100 }
1101
95da310e 1102 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1103 return div_value;
1da177e4
LT		 1104}
1105
95da310e
AC		 1106static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1107{
1108 struct ftdi_private *priv = usb_get_serial_port_data(port);
1109 char *buf;
464cbb24 1110 __u16 urb_value;
95da310e
AC		 1111 __u16 urb_index;
1112 __u32 urb_index_value;
1113 int rv;
1114
1115 buf = kmalloc(1, GFP_NOIO);
1116 if (!buf)
1117 return -ENOMEM;
1118
1119 urb_index_value = get_ftdi_divisor(tty, port);
1120 urb_value = (__u16)urb_index_value;
1121 urb_index = (__u16)(urb_index_value >> 16);
1122 if (priv->interface) { /* FT2232C */
1123 urb_index = (__u16)((urb_index << 8) | priv->interface);
1124 }
1125
1126 rv = usb_control_msg(port->serial->dev,
1127 usb_sndctrlpipe(port->serial->dev, 0),
1128 FTDI_SIO_SET_BAUDRATE_REQUEST,
1129 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1130 urb_value, urb_index,
1131 buf, 0, WDR_SHORT_TIMEOUT);
1132
1133 kfree(buf);
1134 return rv;
1135}
1136
557aaa7f
AC		 1137static int write_latency_timer(struct usb_serial_port *port)
1138{
1139 struct ftdi_private *priv = usb_get_serial_port_data(port);
1140 struct usb_device *udev = port->serial->dev;
1141 char buf[1];
1142 int rv = 0;
1143 int l = priv->latency;
1144
1145 if (priv->flags & ASYNC_LOW_LATENCY)
1146 l = 1;
1147
1148 dbg("%s: setting latency timer = %i", __func__, l);
1149
1150 rv = usb_control_msg(udev,
1151 usb_sndctrlpipe(udev, 0),
1152 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1153 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1154 l, priv->interface,
1155 buf, 0, WDR_TIMEOUT);
95da310e 1156
557aaa7f
AC		 1157 if (rv < 0)
1158 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1159 return rv;
1160}
1161
1162static int read_latency_timer(struct usb_serial_port *port)
1163{
1164 struct ftdi_private *priv = usb_get_serial_port_data(port);
1165 struct usb_device *udev = port->serial->dev;
1166 unsigned short latency = 0;
1167 int rv = 0;
1168
1169
1170 dbg("%s", __func__);
1171
1172 rv = usb_control_msg(udev,
1173 usb_rcvctrlpipe(udev, 0),
1174 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1175 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1176 0, priv->interface,
1177 (char *) &latency, 1, WDR_TIMEOUT);
1178
1179 if (rv < 0) {
1180 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1181 return -EIO;
1182 }
1183 return latency;
1184}
1da177e4 1185
464cbb24
AC		 1186static int get_serial_info(struct usb_serial_port *port,
1187 struct serial_struct __user *retinfo)
1da177e4
LT		 1188{
1189 struct ftdi_private *priv = usb_get_serial_port_data(port);
1190 struct serial_struct tmp;
1191
1192 if (!retinfo)
1193 return -EFAULT;
1194 memset(&tmp, 0, sizeof(tmp));
1195 tmp.flags = priv->flags;
1196 tmp.baud_base = priv->baud_base;
1197 tmp.custom_divisor = priv->custom_divisor;
1198 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1199 return -EFAULT;
1200 return 0;
1201} /* get_serial_info */
1202
1203
95da310e 1204static int set_serial_info(struct tty_struct *tty,
464cbb24 1205 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1206{ /* set_serial_info */
1207 struct ftdi_private *priv = usb_get_serial_port_data(port);
1208 struct serial_struct new_serial;
1209 struct ftdi_private old_priv;
1210
1211 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1212 return -EFAULT;
6b447f04
AC		 1213
1214 lock_kernel();
464cbb24 1215 old_priv = *priv;
1da177e4
LT		 1216
1217 /* Do error checking and permission checking */
1218
1219 if (!capable(CAP_SYS_ADMIN)) {
1220 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1221 (priv->flags & ~ASYNC_USR_MASK))) {
1222 unlock_kernel();
1da177e4 1223 return -EPERM;
64905b48 1224 }
1da177e4
LT		 1225 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1226 (new_serial.flags & ASYNC_USR_MASK));
1227 priv->custom_divisor = new_serial.custom_divisor;
1228 goto check_and_exit;
1229 }
1230
1231 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1232 (new_serial.baud_base < 9600)) {
1233 unlock_kernel();
1da177e4 1234 return -EINVAL;
6b447f04 1235 }
1da177e4
LT		 1236
1237 /* Make the changes - these are privileged changes! */
1238
1239 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1240 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1241 priv->custom_divisor = new_serial.custom_divisor;
1242
557aaa7f 1243 write_latency_timer(port);
1da177e4
LT		 1244
1245check_and_exit:
1246 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1247 (priv->flags & ASYNC_SPD_MASK)) {
1248 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1249 tty->alt_speed = 57600;
1da177e4 1250 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1251 tty->alt_speed = 115200;
1da177e4 1252 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1253 tty->alt_speed = 230400;
1da177e4 1254 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1255 tty->alt_speed = 460800;
1da177e4 1256 else
95da310e 1257 tty->alt_speed = 0;
1da177e4
LT		 1258 }
1259 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1260 (priv->flags & ASYNC_SPD_MASK)) ||
1261 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1262 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1263 unlock_kernel();
95da310e 1264 change_speed(tty, port);
1da177e4 1265 }
6b447f04
AC		 1266 else
1267 unlock_kernel();
95da310e 1268 return 0;
1da177e4
LT		 1269
1270} /* set_serial_info */
1271
1272
8f977e42
IA		 1273/* Determine type of FTDI chip based on USB config and descriptor. */
1274static void ftdi_determine_type(struct usb_serial_port *port)
1275{
1276 struct ftdi_private *priv = usb_get_serial_port_data(port);
1277 struct usb_serial *serial = port->serial;
1278 struct usb_device *udev = serial->dev;
1279 unsigned version;
1280 unsigned interfaces;
1281
1282 /* Assume it is not the original SIO device for now. */
f5e09b7c 1283 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1284 priv->write_offset = 0;
1285
1286 version = le16_to_cpu(udev->descriptor.bcdDevice);
1287 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1288 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1289 version, interfaces);
1290 if (interfaces > 1) {
1291 int inter;
1292
094c2e6d
MA		 1293 /* Multiple interfaces.*/
1294 if (version == 0x0800) {
1295 priv->chip_type = FT4232H;
1296 /* Hi-speed - baud clock runs at 120MHz */
1297 priv->baud_base = 120000000 / 2;
1298 } else if (version == 0x0700) {
1299 priv->chip_type = FT2232H;
1300 /* Hi-speed - baud clock runs at 120MHz */
1301 priv->baud_base = 120000000 / 2;
1302 } else
1303 priv->chip_type = FT2232C;
1304
8f977e42
IA		 1305 /* Determine interface code. */
1306 inter = serial->interface->altsetting->desc.bInterfaceNumber;
094c2e6d
MA		 1307 if (inter == 0) {
1308 priv->interface = INTERFACE_A;
1309 } else if (inter == 1) {
1310 priv->interface = INTERFACE_B;
1311 } else if (inter == 2) {
1312 priv->interface = INTERFACE_C;
1313 } else if (inter == 3) {
1314 priv->interface = INTERFACE_D;
1315 }
8f977e42
IA		 1316 /* BM-type devices have a bug where bcdDevice gets set
1317 * to 0x200 when iSerialNumber is 0. */
1318 if (version < 0x500) {
1319 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1320 __func__);
8f977e42
IA		 1321 }
1322 } else if (version < 0x200) {
1323 /* Old device. Assume its the original SIO. */
1324 priv->chip_type = SIO;
1325 priv->baud_base = 12000000 / 16;
1326 priv->write_offset = 1;
1327 } else if (version < 0x400) {
1328 /* Assume its an FT8U232AM (or FT8U245AM) */
1329 /* (It might be a BM because of the iSerialNumber bug,
1330 * but it will still work as an AM device.) */
1331 priv->chip_type = FT8U232AM;
3b009c63 1332 } else if (version < 0x600) {
8f977e42
IA		 1333 /* Assume its an FT232BM (or FT245BM) */
1334 priv->chip_type = FT232BM;
3b009c63
DB		 1335 } else {
1336 /* Assume its an FT232R */
1337 priv->chip_type = FT232RL;
8f977e42 1338 }
c197a8db 1339 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1340}
1341
1342
895f28ba
MA		 1343/* Determine the maximum packet size for the device. This depends on the chip
1344 * type and the USB host capabilities. The value should be obtained from the
1345 * device descriptor as the chip will use the appropriate values for the host.*/
1346static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1347{
1348 struct ftdi_private *priv = usb_get_serial_port_data(port);
1349 struct usb_serial *serial = port->serial;
1350 struct usb_device *udev = serial->dev;
1351
1352 struct usb_interface *interface = serial->interface;
1353 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1354
1355 unsigned num_endpoints;
1356 int i = 0;
1357
1358 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1359 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1360
1361 /* NOTE: some customers have programmed FT232R/FT245R devices
1362 * with an endpoint size of 0 - not good. In this case, we
1363 * want to override the endpoint descriptor setting and use a
1364 * value of 64 for wMaxPacketSize */
1365 for (i = 0; i < num_endpoints; i++) {
1366 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1367 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1368 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1369 if (ep_desc->wMaxPacketSize == 0) {
1370 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1371 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1372 }
1373 }
1374
1375 /* set max packet size based on descriptor */
1376 priv->max_packet_size = ep_desc->wMaxPacketSize;
1377
1378 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1379}
1380
1381
1da177e4
LT		 1382/*
1383 * ***************************************************************************
1384 * Sysfs Attribute
1385 * ***************************************************************************
1386 */
1387
464cbb24
AC		 1388static ssize_t show_latency_timer(struct device *dev,
1389 struct device_attribute *attr, char *buf)
1da177e4
LT		 1390{
1391 struct usb_serial_port *port = to_usb_serial_port(dev);
1392 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1393 if (priv->flags & ASYNC_LOW_LATENCY)
1394 return sprintf(buf, "1\n");
1395 else
1396 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1397}
1398
557aaa7f 1399
1da177e4 1400/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1401static ssize_t store_latency_timer(struct device *dev,
1402 struct device_attribute *attr, const char *valbuf,
1403 size_t count)
1da177e4
LT		 1404{
1405 struct usb_serial_port *port = to_usb_serial_port(dev);
1406 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4
LT		 1407 int v = simple_strtoul(valbuf, NULL, 10);
1408 int rv = 0;
5c09d144 1409
557aaa7f
AC		 1410 priv->latency = v;
1411 rv = write_latency_timer(port);
1412 if (rv < 0)
1da177e4 1413 return -EIO;
1da177e4
LT		 1414 return count;
1415}
1416
1417/* Write an event character directly to the FTDI register. The ASCII
1418 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1419static ssize_t store_event_char(struct device *dev,
1420 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1421{
1422 struct usb_serial_port *port = to_usb_serial_port(dev);
1423 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1424 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1425 char buf[1];
1426 int v = simple_strtoul(valbuf, NULL, 10);
1427 int rv = 0;
5c09d144 1428
441b62c1 1429 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1430
1da177e4
LT		 1431 rv = usb_control_msg(udev,
1432 usb_sndctrlpipe(udev, 0),
1433 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1434 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1435 v, priv->interface,
1da177e4 1436 buf, 0, WDR_TIMEOUT);
5c09d144 1437
1da177e4
LT		 1438 if (rv < 0) {
1439 dbg("Unable to write event character: %i", rv);
1440 return -EIO;
1441 }
5c09d144 1442
1da177e4
LT		 1443 return count;
1444}
1445
464cbb24
AC		 1446static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1447 store_latency_timer);
1da177e4
LT		 1448static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1449
12bdbe03 1450static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1451{
12bdbe03 1452 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1453 int retval = 0;
1da177e4 1454
464cbb24 1455 dbg("%s", __func__);
13f4db9e 1456
1da177e4
LT		 1457 /* XXX I've no idea if the original SIO supports the event_char
1458 * sysfs parameter, so I'm playing it safe. */
1459 if (priv->chip_type != SIO) {
1460 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1461 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1462 if ((!retval) &&
97cd49eb
SM		 1463 (priv->chip_type == FT232BM ||
1464 priv->chip_type == FT2232C ||
094c2e6d
MA		 1465 priv->chip_type == FT232RL ||
1466 priv->chip_type == FT2232H ||
1467 priv->chip_type == FT4232H)) {
12bdbe03 1468 retval = device_create_file(&port->dev,
13f4db9e 1469 &dev_attr_latency_timer);
1da177e4
LT		 1470 }
1471 }
13f4db9e 1472 return retval;
1da177e4
LT		 1473}
1474
12bdbe03 1475static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1476{
12bdbe03 1477 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1478
464cbb24 1479 dbg("%s", __func__);
1da177e4 1480
1da177e4
LT		 1481 /* XXX see create_sysfs_attrs */
1482 if (priv->chip_type != SIO) {
12bdbe03 1483 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1484 if (priv->chip_type == FT232BM ||
1485 priv->chip_type == FT2232C ||
094c2e6d
MA		 1486 priv->chip_type == FT232RL ||
1487 priv->chip_type == FT2232H ||
1488 priv->chip_type == FT4232H) {
12bdbe03 1489 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1490 }
1491 }
5c09d144 1492
1da177e4
LT		 1493}
1494
1495/*
1496 * ***************************************************************************
1497 * FTDI driver specific functions
1498 * ***************************************************************************
1499 */
1500
8f977e42 1501/* Probe function to check for special devices */
464cbb24
AC		 1502static int ftdi_sio_probe(struct usb_serial *serial,
1503 const struct usb_device_id *id)
8f977e42 1504{
464cbb24
AC		 1505 struct ftdi_sio_quirk *quirk =
1506 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1507
1508 if (quirk && quirk->probe) {
1509 int ret = quirk->probe(serial);
1510 if (ret != 0)
1511 return ret;
1512 }
1513
8f977e42
IA		 1514 usb_set_serial_data(serial, (void *)id->driver_info);
1515
fa91d43b 1516 return 0;
8f977e42
IA		 1517}
1518
12bdbe03 1519static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1520{
1da177e4 1521 struct ftdi_private *priv;
0ffbbe25
ON		 1522 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1523
13f4db9e 1524
464cbb24 1525 dbg("%s", __func__);
1da177e4 1526
80b6ca48 1527 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1528 if (!priv) {
194343d9 1529 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1530 sizeof(struct ftdi_private));
1da177e4
LT		 1531 return -ENOMEM;
1532 }
1da177e4 1533
c45d6320 1534 kref_init(&priv->kref);
22465400 1535 spin_lock_init(&priv->tx_lock);
464cbb24 1536 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1537 /* This will push the characters through immediately rather
1538 than queue a task to deliver them */
1539 priv->flags = ASYNC_LOW_LATENCY;
1540
0ffbbe25
ON		 1541 if (quirk && quirk->port_probe)
1542 quirk->port_probe(priv);
1543
1da177e4 1544 /* Increase the size of read buffers */
1bc3c9e1 1545 kfree(port->bulk_in_buffer);
464cbb24 1546 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1547 if (!port->bulk_in_buffer) {
464cbb24 1548 kfree(priv);
1da177e4
LT		 1549 return -ENOMEM;
1550 }
1551 if (port->read_urb) {
1552 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1553 port->read_urb->transfer_buffer_length = BUFSZ;
1554 }
1555
c4028958 1556 priv->port = port;
76854cea 1557
1da177e4
LT		 1558 /* Free port's existing write urb and transfer buffer. */
1559 if (port->write_urb) {
464cbb24 1560 usb_free_urb(port->write_urb);
1da177e4
LT		 1561 port->write_urb = NULL;
1562 }
1bc3c9e1
JJ		 1563 kfree(port->bulk_out_buffer);
1564 port->bulk_out_buffer = NULL;
1da177e4 1565
12bdbe03 1566 usb_set_serial_port_data(port, priv);
1da177e4 1567
464cbb24 1568 ftdi_determine_type(port);
895f28ba 1569 ftdi_set_max_packet_size(port);
557aaa7f 1570 read_latency_timer(port);
12bdbe03
JR		 1571 create_sysfs_attrs(port);
1572 return 0;
1573}
1da177e4 1574
8f977e42
IA		 1575/* Setup for the USB-UIRT device, which requires hardwired
1576 * baudrate (38400 gets mapped to 312500) */
1da177e4 1577/* Called from usbserial:serial_probe */
464cbb24 1578static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1579{
464cbb24 1580 dbg("%s", __func__);
1da177e4 1581
1da177e4
LT		 1582 priv->flags |= ASYNC_SPD_CUST;
1583 priv->custom_divisor = 77;
669a6db1 1584 priv->force_baud = 38400;
8f977e42 1585} /* ftdi_USB_UIRT_setup */
1da177e4 1586
8f977e42
IA		 1587/* Setup for the HE-TIRA1 device, which requires hardwired
1588 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1589
1590static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1591{
464cbb24 1592 dbg("%s", __func__);
1da177e4 1593
1da177e4
LT		 1594 priv->flags |= ASYNC_SPD_CUST;
1595 priv->custom_divisor = 240;
669a6db1 1596 priv->force_baud = 38400;
1da177e4 1597 priv->force_rtscts = 1;
8f977e42 1598} /* ftdi_HE_TIRA1_setup */
1da177e4 1599
b760dac2
MG		 1600/*
1601 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1602 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1603 */
1604static int ndi_latency_timer = 1;
1605
1606/* Setup for the NDI FTDI-based USB devices, which requires hardwired
1607 * baudrate (19200 gets mapped to 1200000).
1608 *
1609 * Called from usbserial:serial_probe.
1610 */
1611static int ftdi_NDI_device_setup(struct usb_serial *serial)
1612{
1613 struct usb_device *udev = serial->dev;
1614 int latency = ndi_latency_timer;
1615 int rv = 0;
1616 char buf[1];
1617
1618 if (latency == 0)
1619 latency = 1;
1620 if (latency > 99)
1621 latency = 99;
1622
1623 dbg("%s setting NDI device latency to %d", __func__, latency);
1624 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1625
1626 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1627 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1628 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1629 latency, 0, buf, 0, WDR_TIMEOUT);
1630 return 0;
1631}
1632
fa91d43b 1633/*
20734345
HW		 1634 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1635 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1636 * userspace using openocd.
fa91d43b 1637 */
20734345 1638static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1639{
1640 struct usb_device *udev = serial->dev;
1641 struct usb_interface *interface = serial->interface;
1642
464cbb24 1643 dbg("%s", __func__);
fa91d43b
TL		 1644
1645 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1646 dev_info(&udev->dev,
1647 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1648 return -ENODEV;
1649 }
1650
1651 return 0;
1652}
1da177e4 1653
546d7eec
KV		 1654/*
1655 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1656 * We have to correct it if we want to read from it.
1657 */
1658static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1659{
1660 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1661 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1662
1663 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1664 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1665 dev_info(&serial->dev->dev,
1666 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1667 }
1668
1669 return 0;
1670}
1671
c45d6320
AS		 1672static void ftdi_sio_priv_release(struct kref *k)
1673{
1674 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1675
1676 kfree(priv);
1677}
1678
12bdbe03
JR		 1679static int ftdi_sio_port_remove(struct usb_serial_port *port)
1680{
1da177e4
LT		 1681 struct ftdi_private *priv = usb_get_serial_port_data(port);
1682
441b62c1 1683 dbg("%s", __func__);
1da177e4 1684
12bdbe03 1685 remove_sysfs_attrs(port);
5c09d144 1686
80193195 1687 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1688
12bdbe03
JR		 1689 return 0;
1690}
1da177e4 1691
cc01f17d
JH		 1692static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags)
1693{
1694 struct urb *urb = port->read_urb;
1695 struct usb_serial *serial = port->serial;
1696 int result;
1697
1698 usb_fill_bulk_urb(urb, serial->dev,
1699 usb_rcvbulkpipe(serial->dev,
1700 port->bulk_in_endpointAddress),
1701 urb->transfer_buffer,
1702 urb->transfer_buffer_length,
1703 ftdi_read_bulk_callback, port);
1704 result = usb_submit_urb(urb, mem_flags);
1705 if (result)
1706 dev_err(&port->dev,
1707 "%s - failed submitting read urb, error %d\n",
1708 __func__, result);
1709 return result;
1710}
1711
a509a7e4 1712static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1da177e4 1713{ /* ftdi_open */
1da177e4
LT		 1714 struct usb_device *dev = port->serial->dev;
1715 struct ftdi_private *priv = usb_get_serial_port_data(port);
1716 unsigned long flags;
5c09d144 1717
1da177e4
LT		 1718 int result = 0;
1719 char buf[1]; /* Needed for the usb_control_msg I think */
1720
441b62c1 1721 dbg("%s", __func__);
1da177e4 1722
22465400
IA		 1723 spin_lock_irqsave(&priv->tx_lock, flags);
1724 priv->tx_bytes = 0;
1725 spin_unlock_irqrestore(&priv->tx_lock, flags);
22465400 1726
557aaa7f
AC		 1727 write_latency_timer(port);
1728
1da177e4
LT		 1729 /* No error checking for this (will get errors later anyway) */
1730 /* See ftdi_sio.h for description of what is reset */
1731 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1732 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1733 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1734 priv->interface, buf, 0, WDR_TIMEOUT);
1735
1736 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1737 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1738 This is same behaviour as serial.c/rs_open() - Kuba */
1739
1740 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1741 if (tty)
1742 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1743
1da177e4 1744 /* Not throttled */
cc01f17d
JH		 1745 spin_lock_irqsave(&port->lock, flags);
1746 port->throttled = 0;
1747 port->throttle_req = 0;
1748 spin_unlock_irqrestore(&port->lock, flags);
1da177e4
LT		 1749
1750 /* Start reading from the device */
cc01f17d
JH		 1751 result = ftdi_submit_read_urb(port, GFP_KERNEL);
1752 if (!result)
c45d6320 1753 kref_get(&priv->kref);
1da177e4
LT		 1754
1755 return result;
1756} /* ftdi_open */
1757
1758
335f8514
AC		 1759static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1760{
1761 struct ftdi_private *priv = usb_get_serial_port_data(port);
1762 char buf[1];
1763
1764 mutex_lock(&port->serial->disc_mutex);
1765 if (!port->serial->disconnected) {
1766 /* Disable flow control */
1767 if (!on && usb_control_msg(port->serial->dev,
1768 usb_sndctrlpipe(port->serial->dev, 0),
1769 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1770 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1771 0, priv->interface, buf, 0,
1772 WDR_TIMEOUT) < 0) {
1773 dev_err(&port->dev, "error from flowcontrol urb\n");
1774 }
1775 /* drop RTS and DTR */
1776 if (on)
1777 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1778 else
1779 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1780 }
1781 mutex_unlock(&port->serial->disc_mutex);
1782}
1da177e4 1783
5c09d144 1784/*
1da177e4
LT		 1785 * usbserial:__serial_close only calls ftdi_close if the point is open
1786 *
1787 * This only gets called when it is the last close
5c09d144
DB		 1788 *
1789 *
1da177e4
LT		 1790 */
1791
335f8514 1792static void ftdi_close(struct usb_serial_port *port)
1da177e4 1793{ /* ftdi_close */
1da177e4 1794 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1795
441b62c1 1796 dbg("%s", __func__);
1da177e4 1797
1da177e4 1798 /* shutdown our bulk read */
794c944e 1799 usb_kill_urb(port->read_urb);
c45d6320 1800 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1801} /* ftdi_close */
1802
1803
5c09d144 1804
1da177e4
LT		 1805/* The SIO requires the first byte to have:
1806 * B0 1
1807 * B1 0
1808 * B2..7 length of message excluding byte 0
1809 *
1810 * The new devices do not require this byte
1811 */
95da310e 1812static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1813 const unsigned char *buf, int count)
1814{ /* ftdi_write */
1815 struct ftdi_private *priv = usb_get_serial_port_data(port);
1816 struct urb *urb;
1817 unsigned char *buffer;
1818 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1819 int status;
1820 int transfer_size;
22465400 1821 unsigned long flags;
1da177e4 1822
441b62c1 1823 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1824
1825 if (count == 0) {
1826 dbg("write request of 0 bytes");
1827 return 0;
1828 }
22465400
IA		 1829 spin_lock_irqsave(&priv->tx_lock, flags);
1830 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1831 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1832 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1833 return 0;
1834 }
62127a58 1835 priv->tx_outstanding_urbs++;
22465400 1836 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1837
1da177e4 1838 data_offset = priv->write_offset;
464cbb24 1839 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1840
1841 /* Determine total transfer size */
1842 transfer_size = count;
1843 if (data_offset > 0) {
1844 /* Original sio needs control bytes too... */
1845 transfer_size += (data_offset *
895f28ba
MA		 1846 ((count + (priv->max_packet_size - 1 - data_offset)) /
1847 (priv->max_packet_size - data_offset)));
1da177e4
LT		 1848 }
1849
464cbb24 1850 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1851 if (!buffer) {
194343d9
GKH		 1852 dev_err(&port->dev,
1853 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1854 count = -ENOMEM;
1855 goto error_no_buffer;
1da177e4
LT		 1856 }
1857
1858 urb = usb_alloc_urb(0, GFP_ATOMIC);
1859 if (!urb) {
194343d9 1860 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1861 count = -ENOMEM;
1862 goto error_no_urb;
1da177e4
LT		 1863 }
1864
1865 /* Copy data */
1866 if (data_offset > 0) {
464cbb24
AC		 1867 /* Original sio requires control byte at start of
1868 each packet. */
895f28ba 1869 int user_pktsz = priv->max_packet_size - data_offset;
1da177e4
LT		 1870 int todo = count;
1871 unsigned char *first_byte = buffer;
1872 const unsigned char *current_position = buf;
1873
1874 while (todo > 0) {
464cbb24 1875 if (user_pktsz > todo)
1da177e4 1876 user_pktsz = todo;
1da177e4 1877 /* Write the control byte at the front of the packet*/
5c09d144 1878 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1879 /* Copy data for packet */
464cbb24 1880 memcpy(first_byte + data_offset,
1da177e4
LT		 1881 current_position, user_pktsz);
1882 first_byte += user_pktsz + data_offset;
1883 current_position += user_pktsz;
1884 todo -= user_pktsz;
1885 }
1886 } else {
1887 /* No control byte required. */
1888 /* Copy in the data to send */
464cbb24 1889 memcpy(buffer, buf, count);
1da177e4
LT		 1890 }
1891
464cbb24
AC		 1892 usb_serial_debug_data(debug, &port->dev, __func__,
1893 transfer_size, buffer);
1da177e4
LT		 1894
1895 /* fill the buffer and send it */
5c09d144 1896 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1897 usb_sndbulkpipe(port->serial->dev,
1898 port->bulk_out_endpointAddress),
1899 buffer, transfer_size,
1900 ftdi_write_bulk_callback, port);
1da177e4
LT		 1901
1902 status = usb_submit_urb(urb, GFP_ATOMIC);
1903 if (status) {
194343d9
GKH		 1904 dev_err(&port->dev,
1905 "%s - failed submitting write urb, error %d\n",
1906 __func__, status);
1da177e4 1907 count = status;
62127a58 1908 goto error;
22465400
IA		 1909 } else {
1910 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1911 priv->tx_outstanding_bytes += count;
1912 priv->tx_bytes += count;
1913 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1914 }
1915
1916 /* we are done with this urb, so let the host driver
1917 * really free it when it is finished with it */
62127a58 1918 usb_free_urb(urb);
1da177e4 1919
441b62c1 1920 dbg("%s write returning: %d", __func__, count);
1da177e4 1921 return count;
62127a58
ON		 1922error:
1923 usb_free_urb(urb);
1924error_no_urb:
464cbb24 1925 kfree(buffer);
62127a58
ON		 1926error_no_buffer:
1927 spin_lock_irqsave(&priv->tx_lock, flags);
1928 priv->tx_outstanding_urbs--;
1929 spin_unlock_irqrestore(&priv->tx_lock, flags);
1930 return count;
1da177e4
LT		 1931} /* ftdi_write */
1932
1933
1934/* This function may get called when the device is closed */
1935
464cbb24 1936static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1937{
22465400 1938 unsigned long flags;
cdc97792 1939 struct usb_serial_port *port = urb->context;
22465400
IA		 1940 struct ftdi_private *priv;
1941 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1942 unsigned long countback;
0fb0aa18 1943 int status = urb->status;
1da177e4
LT		 1944
1945 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1946 kfree(urb->transfer_buffer);
1da177e4 1947
441b62c1 1948 dbg("%s - port %d", __func__, port->number);
5c09d144 1949
22465400
IA		 1950 priv = usb_get_serial_port_data(port);
1951 if (!priv) {
441b62c1 1952 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1953 return;
1954 }
1955 /* account for transferred data */
0de6ab8b 1956 countback = urb->transfer_buffer_length;
22465400
IA		 1957 data_offset = priv->write_offset;
1958 if (data_offset > 0) {
1959 /* Subtract the control bytes */
895f28ba 1960 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
22465400
IA		 1961 }
1962 spin_lock_irqsave(&priv->tx_lock, flags);
1963 --priv->tx_outstanding_urbs;
1964 priv->tx_outstanding_bytes -= countback;
1965 spin_unlock_irqrestore(&priv->tx_lock, flags);
1966
87c1edd2
JW		 1967 if (status) {
1968 dbg("nonzero write bulk status received: %d", status);
87c1edd2
JW		 1969 }
1970
cf2c7481 1971 usb_serial_port_softint(port);
1da177e4
LT		 1972} /* ftdi_write_bulk_callback */
1973
1974
95da310e 1975static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1976{
95da310e 1977 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1978 struct ftdi_private *priv = usb_get_serial_port_data(port);
1979 int room;
1980 unsigned long flags;
1981
441b62c1 1982 dbg("%s - port %d", __func__, port->number);
1da177e4 1983
22465400
IA		 1984 spin_lock_irqsave(&priv->tx_lock, flags);
1985 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1986 /*
1987 * We really can take anything the user throws at us
1988 * but let's pick a nice big number to tell the tty
1989 * layer that we have lots of free space
1990 */
1991 room = 2048;
1992 } else {
1993 room = 0;
1994 }
1995 spin_unlock_irqrestore(&priv->tx_lock, flags);
1996 return room;
95da310e 1997}
1da177e4 1998
95da310e
AC		 1999static int ftdi_chars_in_buffer(struct tty_struct *tty)
2000{
2001 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 2002 struct ftdi_private *priv = usb_get_serial_port_data(port);
2003 int buffered;
2004 unsigned long flags;
2005
441b62c1 2006 dbg("%s - port %d", __func__, port->number);
1da177e4 2007
22465400
IA		 2008 spin_lock_irqsave(&priv->tx_lock, flags);
2009 buffered = (int)priv->tx_outstanding_bytes;
2010 spin_unlock_irqrestore(&priv->tx_lock, flags);
2011 if (buffered < 0) {
194343d9
GKH		 2012 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
2013 __func__);
22465400
IA		 2014 buffered = 0;
2015 }
2016 return buffered;
95da310e 2017}
1da177e4 2018
cc01f17d
JH		 2019static int ftdi_process_packet(struct tty_struct *tty,
2020 struct usb_serial_port *port, struct ftdi_private *priv,
2021 char *packet, int len)
95da310e 2022{
1da177e4 2023 int i;
cc01f17d
JH		 2024 char status;
2025 char flag;
2026 char *ch;
1da177e4 2027
441b62c1 2028 dbg("%s - port %d", __func__, port->number);
1da177e4 2029
cc01f17d
JH		 2030 if (len < 2) {
2031 dbg("malformed packet");
2032 return 0;
1da177e4
LT		 2033 }
2034
cc01f17d
JH		 2035 /* Compare new line status to the old one, signal if different/
2036 N.B. packet may be processed more than once, but differences
2037 are only processed once. */
2038 status = packet[0] & FTDI_STATUS_B0_MASK;
2039 if (status != priv->prev_status) {
2040 priv->diff_status |= status ^ priv->prev_status;
2041 wake_up_interruptible(&priv->delta_msr_wait);
2042 priv->prev_status = status;
1da177e4
LT		 2043 }
2044
cc01f17d
JH		 2045 /*
2046 * Although the device uses a bitmask and hence can have multiple
2047 * errors on a packet - the order here sets the priority the error is
2048 * returned to the tty layer.
2049 */
2050 flag = TTY_NORMAL;
2051 if (packet[1] & FTDI_RS_OE) {
2052 flag = TTY_OVERRUN;
2053 dbg("OVERRRUN error");
1da177e4 2054 }
cc01f17d
JH		 2055 if (packet[1] & FTDI_RS_BI) {
2056 flag = TTY_BREAK;
2057 dbg("BREAK received");
2058 usb_serial_handle_break(port);
2059 }
2060 if (packet[1] & FTDI_RS_PE) {
2061 flag = TTY_PARITY;
2062 dbg("PARITY error");
2063 }
2064 if (packet[1] & FTDI_RS_FE) {
2065 flag = TTY_FRAME;
2066 dbg("FRAMING error");
76854cea 2067 }
1da177e4 2068
cc01f17d
JH		 2069 len -= 2;
2070 if (!len)
2071 return 0; /* status only */
2072 ch = packet + 2;
2073
2074 if (!(port->console && port->sysrq) && flag == TTY_NORMAL)
2075 tty_insert_flip_string(tty, ch, len);
2076 else {
2077 for (i = 0; i < len; i++, ch++) {
2078 if (!usb_serial_handle_sysrq_char(tty, port, *ch))
2079 tty_insert_flip_char(tty, *ch, flag);
76854cea 2080 }
cc01f17d
JH		 2081 }
2082 return len;
2083}
76854cea 2084
cc01f17d
JH		 2085static void ftdi_process_read(struct usb_serial_port *port)
2086{
2087 struct urb *urb = port->read_urb;
2088 struct tty_struct *tty;
2089 struct ftdi_private *priv = usb_get_serial_port_data(port);
2090 char *data = (char *)urb->transfer_buffer;
2091 int i;
2092 int len;
2093 int count = 0;
1da177e4 2094
cc01f17d
JH		 2095 tty = tty_port_tty_get(&port->port);
2096 if (!tty)
2097 return;
1da177e4 2098
cc01f17d
JH		 2099 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2100 len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2101 count += ftdi_process_packet(tty, port, priv, &data[i], len);
2102 }
1da177e4 2103
cc01f17d 2104 if (count)
1da177e4 2105 tty_flip_buffer_push(tty);
cc01f17d
JH		 2106 tty_kref_put(tty);
2107}
1da177e4 2108
cc01f17d
JH		 2109static void ftdi_read_bulk_callback(struct urb *urb)
2110{
2111 struct usb_serial_port *port = urb->context;
2112 unsigned long flags;
76854cea 2113
cc01f17d 2114 dbg("%s - port %d", __func__, port->number);
1da177e4 2115
cc01f17d
JH		 2116 if (urb->status) {
2117 dbg("%s - nonzero read bulk status received: %d",
2118 __func__, urb->status);
2119 return;
1da177e4 2120 }
1da177e4 2121
cc01f17d
JH		 2122 usb_serial_debug_data(debug, &port->dev, __func__,
2123 urb->actual_length, urb->transfer_buffer);
2124 ftdi_process_read(port);
2125
2126 spin_lock_irqsave(&port->lock, flags);
2127 port->throttled = port->throttle_req;
2128 if (!port->throttled) {
2129 spin_unlock_irqrestore(&port->lock, flags);
2130 ftdi_submit_read_urb(port, GFP_ATOMIC);
2131 } else
2132 spin_unlock_irqrestore(&port->lock, flags);
2133}
1da177e4 2134
95da310e 2135static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2136{
95da310e 2137 struct usb_serial_port *port = tty->driver_data;
1da177e4 2138 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2139 __u16 urb_value = 0;
1da177e4 2140 char buf[1];
5c09d144 2141
1da177e4
LT		 2142 /* break_state = -1 to turn on break, and 0 to turn off break */
2143 /* see drivers/char/tty_io.c to see it used */
2144 /* last_set_data_urb_value NEVER has the break bit set in it */
2145
464cbb24 2146 if (break_state)
1da177e4 2147 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2148 else
5c09d144 2149 urb_value = priv->last_set_data_urb_value;
5c09d144 2150
464cbb24
AC		 2151 if (usb_control_msg(port->serial->dev,
2152 usb_sndctrlpipe(port->serial->dev, 0),
2153 FTDI_SIO_SET_DATA_REQUEST,
2154 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2155 urb_value , priv->interface,
2156 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2157 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2158 "(state was %d)\n", __func__, break_state);
5c09d144 2159 }
1da177e4 2160
464cbb24
AC		 2161 dbg("%s break state is %d - urb is %d", __func__,
2162 break_state, urb_value);
5c09d144 2163
1da177e4
LT		 2164}
2165
2166
2167/* old_termios contains the original termios settings and tty->termios contains
2168 * the new setting to be used
2169 * WARNING: set_termios calls this with old_termios in kernel space
2170 */
2171
95da310e
AC		 2172static void ftdi_set_termios(struct tty_struct *tty,
2173 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2174{ /* ftdi_termios */
2175 struct usb_device *dev = port->serial->dev;
1da177e4 2176 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2177 struct ktermios *termios = tty->termios;
669a6db1 2178 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2179 __u16 urb_value; /* will hold the new flags */
2180 char buf[1]; /* Perhaps I should dynamically alloc this? */
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) {
2231 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2232 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2233 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2234 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2235 default:
194343d9 2236 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2237 }
2238 }
2239
464cbb24
AC		 2240 /* This is needed by the break command since it uses the same command
2241 - but is or'ed with this value */
1da177e4 2242 priv->last_set_data_urb_value = urb_value;
5c09d144 2243
1da177e4 2244 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2245 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2246 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2247 urb_value , priv->interface,
279e1545 2248 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2249 dev_err(&port->dev, "%s FAILED to set "
2250 "databits/stopbits/parity\n", __func__);
5c09d144 2251 }
1da177e4
LT		 2252
2253 /* Now do the baudrate */
464cbb24 2254 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2255 /* Disable flow control */
2256 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2257 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2258 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2259 0, priv->interface,
1da177e4 2260 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2261 dev_err(&port->dev,
2262 "%s error from disable flowcontrol urb\n",
2263 __func__);
5c09d144 2264 }
1da177e4 2265 /* Drop RTS and DTR */
74ede0ff 2266 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2267 } else {
2268 /* set the baudrate determined before */
464cbb24 2269 if (change_speed(tty, port))
194343d9
GKH		 2270 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2271 __func__);
72a755fc 2272 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2273 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2274 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2275 }
2276
2277 /* Set flow control */
2278 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2279 if (cflag & CRTSCTS) {
441b62c1 2280 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2281 if (usb_control_msg(dev,
1da177e4 2282 usb_sndctrlpipe(dev, 0),
5c09d144 2283 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2284 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2285 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2286 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2287 dev_err(&port->dev,
2288 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2289 }
2290
2291 } else {
1da177e4
LT		 2292 /*
2293 * Xon/Xoff code
2294 *
464cbb24
AC		 2295 * Check the IXOFF status in the iflag component of the
2296 * termios structure. If IXOFF is not set, the pre-xon/xoff
2297 * code is executed.
2298 */
1da177e4 2299 if (iflag & IXOFF) {
464cbb24
AC		 2300 dbg("%s request to enable xonxoff iflag=%04x",
2301 __func__, iflag);
2302 /* Try to enable the XON/XOFF on the ftdi_sio
2303 * Set the vstart and vstop -- could have been done up
2304 * above where a lot of other dereferencing is done but
2305 * that would be very inefficient as vstart and vstop
2306 * are not always needed.
2307 */
669a6db1
AC		 2308 vstart = termios->c_cc[VSTART];
2309 vstop = termios->c_cc[VSTOP];
464cbb24 2310 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2311
2312 if (usb_control_msg(dev,
2313 usb_sndctrlpipe(dev, 0),
2314 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2315 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2316 urb_value , (FTDI_SIO_XON_XOFF_HS
2317 | priv->interface),
2318 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2319 dev_err(&port->dev, "urb failed to set to "
2320 "xon/xoff flow control\n");
1da177e4
LT		 2321 }
2322 } else {
464cbb24
AC		 2323 /* else clause to only run if cflag ! CRTSCTS and iflag
2324 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2325 * stack - not by device */
441b62c1 2326 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2327 if (usb_control_msg(dev,
1da177e4 2328 usb_sndctrlpipe(dev, 0),
5c09d144 2329 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2330 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2331 0, priv->interface,
1da177e4 2332 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2333 dev_err(&port->dev,
2334 "urb failed to clear flow control\n");
5c09d144 2335 }
1da177e4 2336 }
5c09d144 2337
1da177e4
LT		 2338 }
2339 return;
95da310e 2340}
1da177e4 2341
95da310e 2342static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2343{
95da310e 2344 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2345 struct ftdi_private *priv = usb_get_serial_port_data(port);
2346 unsigned char buf[2];
2347 int ret;
2348
441b62c1 2349 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2350 switch (priv->chip_type) {
2351 case SIO:
2352 /* Request the status from the device */
464cbb24
AC		 2353 ret = usb_control_msg(port->serial->dev,
2354 usb_rcvctrlpipe(port->serial->dev, 0),
2355 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2356 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2357 0, 0,
2358 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2359 if (ret < 0)
464cbb24 2360 return ret;
1da177e4
LT		 2361 break;
2362 case FT8U232AM:
2363 case FT232BM:
2364 case FT2232C:
ed6e5282 2365 case FT232RL:
094c2e6d
MA		 2366 case FT2232H:
2367 case FT4232H:
464cbb24
AC		 2368 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2369 value) - in the same format as the data returned from the in
2370 point */
2371 ret = usb_control_msg(port->serial->dev,
2372 usb_rcvctrlpipe(port->serial->dev, 0),
2373 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2374 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2375 0, priv->interface,
2376 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2377 if (ret < 0)
464cbb24 2378 return ret;
1da177e4
LT		 2379 break;
2380 default:
2381 return -EFAULT;
1da177e4 2382 }
5c09d144 2383
1da177e4
LT		 2384 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2385 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2386 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2387 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2388 priv->last_dtr_rts;
1da177e4
LT		 2389}
2390
464cbb24 2391static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2392 unsigned int set, unsigned int clear)
1da177e4 2393{
95da310e 2394 struct usb_serial_port *port = tty->driver_data;
441b62c1 2395 dbg("%s TIOCMSET", __func__);
74ede0ff 2396 return update_mctrl(port, set, clear);
1da177e4
LT		 2397}
2398
2399
464cbb24
AC		 2400static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2401 unsigned int cmd, unsigned long arg)
1da177e4 2402{
95da310e 2403 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2404 struct ftdi_private *priv = usb_get_serial_port_data(port);
2405
441b62c1 2406 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2407
2408 /* Based on code from acm.c and others */
2409 switch (cmd) {
2410
1da177e4 2411 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2412 return get_serial_info(port,
2413 (struct serial_struct __user *) arg);
1da177e4
LT		 2414
2415 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2416 return set_serial_info(tty, port,
2417 (struct serial_struct __user *) arg);
1da177e4
LT		 2418
2419 /*
2420 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2421 * - mask passed in arg for lines of interest
2422 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2423 * Caller should use TIOCGICOUNT to see which one it was.
2424 *
2425 * This code is borrowed from linux/drivers/char/serial.c
2426 */
2427 case TIOCMIWAIT:
2428 while (priv != NULL) {
2429 interruptible_sleep_on(&priv->delta_msr_wait);
2430 /* see if a signal did it */
2431 if (signal_pending(current))
2432 return -ERESTARTSYS;
2433 else {
2434 char diff = priv->diff_status;
2435
464cbb24 2436 if (diff == 0)
1da177e4 2437 return -EIO; /* no change => error */
1da177e4
LT		 2438
2439 /* Consume all events */
2440 priv->diff_status = 0;
2441
464cbb24
AC		 2442 /* Return 0 if caller wanted to know about
2443 these bits */
2444 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2445 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2446 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2447 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2448 return 0;
2449 }
2450 /*
464cbb24
AC		 2451 * Otherwise caller can't care less about what
2452 * happened,and so we continue to wait for more
2453 * events.
1da177e4
LT		 2454 */
2455 }
2456 }
95da310e 2457 return 0;
1da177e4
LT		 2458 default:
2459 break;
1da177e4 2460 }
464cbb24
AC		 2461 /* This is not necessarily an error - turns out the higher layers
2462 * will do some ioctls themselves (see comment above)
1da177e4 2463 */
441b62c1 2464 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2465 return -ENOIOCTLCMD;
2466}
1da177e4 2467
95da310e 2468static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2469{
95da310e 2470 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2471 unsigned long flags;
2472
441b62c1 2473 dbg("%s - port %d", __func__, port->number);
1da177e4 2474
cc01f17d
JH		 2475 spin_lock_irqsave(&port->lock, flags);
2476 port->throttle_req = 1;
2477 spin_unlock_irqrestore(&port->lock, flags);
1da177e4
LT		 2478}
2479
cc01f17d 2480void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2481{
95da310e 2482 struct usb_serial_port *port = tty->driver_data;
cc01f17d 2483 int was_throttled;
1da177e4
LT		 2484 unsigned long flags;
2485
441b62c1 2486 dbg("%s - port %d", __func__, port->number);
1da177e4 2487
cc01f17d
JH		 2488 spin_lock_irqsave(&port->lock, flags);
2489 was_throttled = port->throttled;
2490 port->throttled = port->throttle_req = 0;
2491 spin_unlock_irqrestore(&port->lock, flags);
1da177e4 2492
cc01f17d
JH		 2493 /* Resubmit urb if throttled and open. */
2494 if (was_throttled && test_bit(ASYNCB_INITIALIZED, &port->port.flags))
2495 ftdi_submit_read_urb(port, GFP_KERNEL);
1da177e4
LT		 2496}
2497
464cbb24 2498static int __init ftdi_init(void)
1da177e4
LT		 2499{
2500 int retval;
2501
441b62c1 2502 dbg("%s", __func__);
fdcb0a0f
IA		 2503 if (vendor > 0 && product > 0) {
2504 /* Add user specified VID/PID to reserved element of table. */
2505 int i;
2506 for (i = 0; id_table_combined[i].idVendor; i++)
2507 ;
2508 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2509 id_table_combined[i].idVendor = vendor;
2510 id_table_combined[i].idProduct = product;
2511 }
8f977e42 2512 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2513 if (retval)
8f977e42 2514 goto failed_sio_register;
1da177e4 2515 retval = usb_register(&ftdi_driver);
5c09d144 2516 if (retval)
1da177e4
LT		 2517 goto failed_usb_register;
2518
c197a8db
GKH		 2519 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2520 DRIVER_DESC "\n");
1da177e4
LT		 2521 return 0;
2522failed_usb_register:
8f977e42
IA		 2523 usb_serial_deregister(&ftdi_sio_device);
2524failed_sio_register:
1da177e4
LT		 2525 return retval;
2526}
2527
2528
464cbb24 2529static void __exit ftdi_exit(void)
1da177e4
LT		 2530{
2531
441b62c1 2532 dbg("%s", __func__);
1da177e4 2533
464cbb24
AC		 2534 usb_deregister(&ftdi_driver);
2535 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2536
2537}
2538
2539
2540module_init(ftdi_init);
2541module_exit(ftdi_exit);
2542
464cbb24
AC		 2543MODULE_AUTHOR(DRIVER_AUTHOR);
2544MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2545MODULE_LICENSE("GPL");
2546
2547module_param(debug, bool, S_IRUGO | S_IWUSR);
2548MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2549module_param(vendor, ushort, 0);
2550MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2551 __MODULE_STRING(FTDI_VID)")");
2552module_param(product, ushort, 0);
68265043 2553MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2554
b760dac2
MG		 2555module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2556MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
Clone of davem's net-next-2.6 tree