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USB: ftdi_sio: isolate all device IDs to new ftdi_sio_ids.h header
[deliverable/linux.git] / drivers / usb / serial / ftdi_sio.c
CommitLineData
1da177e4
LT		 1/*
2 * USB FTDI SIO driver
3 *
5c09d144
DB		 4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
1da177e4
LT		 6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
5c09d144
DB		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
1da177e4 14 *
464cbb24
AC		 15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
1da177e4
LT		 17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
504b55cc
GKH		 21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 23 *
24 */
25
26/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27/* Thanx to FTDI for so kindly providing details of the protocol required */
28/* to talk to the device */
464cbb24
AC		 29/* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
1da177e4 31
1da177e4
LT		 32#include <linux/kernel.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/slab.h>
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) },
96285cb8
GC		 700 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
701 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 702 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 703 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
7f82b6dd
AW		 704 { USB_DEVICE(ATMEL_VID, STK541_PID) },
705 { USB_DEVICE(DE_VID, STB_PID) },
706 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 707 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
708 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
11eaf170
MH		 709 { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
710 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 711 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 712 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
713 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
d46130ab 714 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
fca4404c 715 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
c47aacc6 716 { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
50d0678e
DV		 717 { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
718 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
e7d7fcc0
PL		 719 { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
720 { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
fdcb0a0f
IA		 721 { }, /* Optional parameter entry */
722 { } /* Terminating entry */
1da177e4
LT		 723};
724
464cbb24 725MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 726
727static struct usb_driver ftdi_driver = {
728 .name = "ftdi_sio",
729 .probe = usb_serial_probe,
730 .disconnect = usb_serial_disconnect,
731 .id_table = id_table_combined,
5c09d144 732 .no_dynamic_id = 1,
1da177e4
LT		 733};
734
4c4c9432 735static const char *ftdi_chip_name[] = {
1da177e4
LT		 736 [SIO] = "SIO", /* the serial part of FT8U100AX */
737 [FT8U232AM] = "FT8U232AM",
738 [FT232BM] = "FT232BM",
739 [FT2232C] = "FT2232C",
d8b21606 740 [FT232RL] = "FT232RL",
094c2e6d
MA		 741 [FT2232H] = "FT2232H",
742 [FT4232H] = "FT4232H"
1da177e4
LT		 743};
744
745
746/* Constants for read urb and write urb */
747#define BUFSZ 512
1da177e4 748
1da177e4
LT		 749/* Used for TIOCMIWAIT */
750#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
751#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
752/* End TIOCMIWAIT */
753
bbc5d276
RK		 754#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
755 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 756
757/* function prototypes for a FTDI serial converter */
464cbb24
AC		 758static int ftdi_sio_probe(struct usb_serial *serial,
759 const struct usb_device_id *id);
464cbb24
AC		 760static int ftdi_sio_port_probe(struct usb_serial_port *port);
761static int ftdi_sio_port_remove(struct usb_serial_port *port);
a509a7e4 762static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
335f8514
AC		 763static void ftdi_close(struct usb_serial_port *port);
764static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 765static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
766 const unsigned char *buf, int count);
767static int ftdi_write_room(struct tty_struct *tty);
768static int ftdi_chars_in_buffer(struct tty_struct *tty);
769static void ftdi_write_bulk_callback(struct urb *urb);
770static void ftdi_read_bulk_callback(struct urb *urb);
cc01f17d 771static void ftdi_process_read(struct usb_serial_port *port);
464cbb24
AC		 772static void ftdi_set_termios(struct tty_struct *tty,
773 struct usb_serial_port *port, struct ktermios *old);
774static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
775static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
776 unsigned int set, unsigned int clear);
777static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
778 unsigned int cmd, unsigned long arg);
779static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
780static void ftdi_throttle(struct tty_struct *tty);
781static void ftdi_unthrottle(struct tty_struct *tty);
782
783static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
784static unsigned short int ftdi_232am_baud_to_divisor(int baud);
785static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
786static __u32 ftdi_232bm_baud_to_divisor(int baud);
094c2e6d
MA		 787static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
788static __u32 ftdi_2232h_baud_to_divisor(int baud);
1da177e4 789
ea65370d 790static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 791 .driver = {
792 .owner = THIS_MODULE,
269bda1c 793 .name = "ftdi_sio",
18fcac35 794 },
269bda1c 795 .description = "FTDI USB Serial Device",
d9b1b787 796 .usb_driver = &ftdi_driver ,
8f977e42 797 .id_table = id_table_combined,
1da177e4 798 .num_ports = 1,
8f977e42 799 .probe = ftdi_sio_probe,
12bdbe03
JR		 800 .port_probe = ftdi_sio_port_probe,
801 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 802 .open = ftdi_open,
803 .close = ftdi_close,
335f8514 804 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 805 .throttle = ftdi_throttle,
806 .unthrottle = ftdi_unthrottle,
807 .write = ftdi_write,
808 .write_room = ftdi_write_room,
809 .chars_in_buffer = ftdi_chars_in_buffer,
810 .read_bulk_callback = ftdi_read_bulk_callback,
811 .write_bulk_callback = ftdi_write_bulk_callback,
812 .tiocmget = ftdi_tiocmget,
813 .tiocmset = ftdi_tiocmset,
814 .ioctl = ftdi_ioctl,
815 .set_termios = ftdi_set_termios,
816 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 817};
818
1da177e4
LT		 819
820#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 821#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 822
823/* High and low are for DTR, RTS etc etc */
824#define HIGH 1
825#define LOW 0
826
22465400
IA		 827/* number of outstanding urbs to prevent userspace DoS from happening */
828#define URB_UPPER_LIMIT 42
829
1da177e4
LT		 830/*
831 * ***************************************************************************
fa91d43b 832 * Utility functions
1da177e4
LT		 833 * ***************************************************************************
834 */
835
836static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
837{
838 unsigned short int divisor;
464cbb24
AC		 839 /* divisor shifted 3 bits to the left */
840 int divisor3 = base / 2 / baud;
841 if ((divisor3 & 0x7) == 7)
842 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 843 divisor = divisor3 >> 3;
844 divisor3 &= 0x7;
464cbb24
AC		 845 if (divisor3 == 1)
846 divisor |= 0xc000;
847 else if (divisor3 >= 4)
848 divisor |= 0x4000;
849 else if (divisor3 != 0)
850 divisor |= 0x8000;
851 else if (divisor == 1)
852 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 853 return divisor;
854}
855
856static unsigned short int ftdi_232am_baud_to_divisor(int baud)
857{
464cbb24 858 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 859}
860
861static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
862{
863 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
864 __u32 divisor;
464cbb24
AC		 865 /* divisor shifted 3 bits to the left */
866 int divisor3 = base / 2 / baud;
1da177e4
LT		 867 divisor = divisor3 >> 3;
868 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
869 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 870 if (divisor == 1)
871 divisor = 0;
872 else if (divisor == 0x4001)
873 divisor = 1;
1da177e4
LT		 874 return divisor;
875}
876
877static __u32 ftdi_232bm_baud_to_divisor(int baud)
878{
464cbb24 879 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 880}
881
094c2e6d
MA		 882static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
883{
884 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
885 __u32 divisor;
886 int divisor3;
887
888 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
889 divisor3 = (base / 10 / baud) * 8;
890
891 divisor = divisor3 >> 3;
892 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
893 /* Deal with special cases for highest baud rates. */
894 if (divisor == 1)
895 divisor = 0;
896 else if (divisor == 0x4001)
897 divisor = 1;
898 /*
899 * Set this bit to turn off a divide by 2.5 on baud rate generator
900 * This enables baud rates up to 12Mbaud but cannot reach below 1200
901 * baud with this bit set
902 */
903 divisor |= 0x00020000;
904 return divisor;
905}
906
907static __u32 ftdi_2232h_baud_to_divisor(int baud)
908{
909 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
910}
911
74ede0ff
IA		 912#define set_mctrl(port, set) update_mctrl((port), (set), 0)
913#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
914
464cbb24
AC		 915static int update_mctrl(struct usb_serial_port *port, unsigned int set,
916 unsigned int clear)
1da177e4
LT		 917{
918 struct ftdi_private *priv = usb_get_serial_port_data(port);
919 char *buf;
74ede0ff 920 unsigned urb_value;
1da177e4 921 int rv;
1da177e4 922
74ede0ff 923 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 924 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 925 return 0; /* no change */
926 }
1da177e4 927
1da177e4 928 buf = kmalloc(1, GFP_NOIO);
9b0f2582 929 if (!buf)
1da177e4 930 return -ENOMEM;
74ede0ff
IA		 931
932 clear &= ~set; /* 'set' takes precedence over 'clear' */
933 urb_value = 0;
934 if (clear & TIOCM_DTR)
935 urb_value |= FTDI_SIO_SET_DTR_LOW;
936 if (clear & TIOCM_RTS)
937 urb_value |= FTDI_SIO_SET_RTS_LOW;
938 if (set & TIOCM_DTR)
939 urb_value |= FTDI_SIO_SET_DTR_HIGH;
940 if (set & TIOCM_RTS)
941 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 942 rv = usb_control_msg(port->serial->dev,
943 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 944 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 945 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 946 urb_value, priv->interface,
1da177e4
LT		 947 buf, 0, WDR_TIMEOUT);
948
949 kfree(buf);
74ede0ff 950 if (rv < 0) {
43b11d33 951 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 952 __func__,
74ede0ff
IA		 953 (set & TIOCM_DTR) ? "HIGH" :
954 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
955 (set & TIOCM_RTS) ? "HIGH" :
956 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
957 } else {
441b62c1 958 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 959 (set & TIOCM_DTR) ? "HIGH" :
960 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
961 (set & TIOCM_RTS) ? "HIGH" :
962 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 963 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 964 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
965 }
1da177e4
LT		 966 return rv;
967}
968
969
464cbb24
AC		 970static __u32 get_ftdi_divisor(struct tty_struct *tty,
971 struct usb_serial_port *port)
1da177e4
LT		 972{ /* get_ftdi_divisor */
973 struct ftdi_private *priv = usb_get_serial_port_data(port);
974 __u32 div_value = 0;
975 int div_okay = 1;
976 int baud;
977
978 /*
464cbb24
AC		 979 * The logic involved in setting the baudrate can be cleanly split into
980 * 3 steps.
1da177e4 981 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 982 * 2. If these are not enough, you can set any speed using alt_speed as
983 * follows:
1da177e4
LT		 984 * - set tty->termios->c_cflag speed to B38400
985 * - set your real speed in tty->alt_speed; it gets ignored when
986 * alt_speed==0, (or)
464cbb24
AC		 987 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
988 * follows:
989 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
990 * this just sets alt_speed to (HI: 57600, VHI: 115200,
991 * SHI: 230400, WARP: 460800)
1da177e4
LT		 992 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
993 * 3. You can also set baud rate by setting custom divisor as follows
994 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 995 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
996 * follows:
1da177e4
LT		 997 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
998 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 999 * ** Step 3 is done courtesy of code borrowed from serial.c
1000 * I should really spend some time and separate + move this common
1001 * code to serial.c, it is replicated in nearly every serial driver
1002 * you see.
1da177e4
LT		 1003 */
1004
464cbb24
AC		 1005 /* 1. Get the baud rate from the tty settings, this observes
1006 alt_speed hack */
1da177e4 1007
95da310e 1008 baud = tty_get_baud_rate(tty);
441b62c1 1009 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 1010
464cbb24
AC		 1011 /* 2. Observe async-compatible custom_divisor hack, update baudrate
1012 if needed */
1da177e4
LT		 1013
1014 if (baud == 38400 &&
1015 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1016 (priv->custom_divisor)) {
1017 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 1018 dbg("%s - custom divisor %d sets baud rate to %d",
1019 __func__, priv->custom_divisor, baud);
1da177e4
LT		 1020 }
1021
1022 /* 3. Convert baudrate to device-specific divisor */
1023
464cbb24
AC		 1024 if (!baud)
1025 baud = 9600;
1026 switch (priv->chip_type) {
1da177e4 1027 case SIO: /* SIO chip */
464cbb24 1028 switch (baud) {
1da177e4
LT		 1029 case 300: div_value = ftdi_sio_b300; break;
1030 case 600: div_value = ftdi_sio_b600; break;
1031 case 1200: div_value = ftdi_sio_b1200; break;
1032 case 2400: div_value = ftdi_sio_b2400; break;
1033 case 4800: div_value = ftdi_sio_b4800; break;
1034 case 9600: div_value = ftdi_sio_b9600; break;
1035 case 19200: div_value = ftdi_sio_b19200; break;
1036 case 38400: div_value = ftdi_sio_b38400; break;
1037 case 57600: div_value = ftdi_sio_b57600; break;
1038 case 115200: div_value = ftdi_sio_b115200; break;
1039 } /* baud */
1040 if (div_value == 0) {
464cbb24
AC		 1041 dbg("%s - Baudrate (%d) requested is not supported",
1042 __func__, baud);
1da177e4 1043 div_value = ftdi_sio_b9600;
bd5e47cc 1044 baud = 9600;
1da177e4
LT		 1045 div_okay = 0;
1046 }
1047 break;
1048 case FT8U232AM: /* 8U232AM chip */
1049 if (baud <= 3000000) {
1050 div_value = ftdi_232am_baud_to_divisor(baud);
1051 } else {
464cbb24 1052 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 1053 baud = 9600;
1da177e4
LT		 1054 div_value = ftdi_232am_baud_to_divisor(9600);
1055 div_okay = 0;
1056 }
1057 break;
1058 case FT232BM: /* FT232BM chip */
1059 case FT2232C: /* FT2232C chip */
3b009c63 1060 case FT232RL:
1da177e4 1061 if (baud <= 3000000) {
b760dac2
MG		 1062 __u16 product_id = le16_to_cpu(
1063 port->serial->dev->descriptor.idProduct);
1064 if (((FTDI_NDI_HUC_PID == product_id) ||
1065 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1066 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1067 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1068 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1069 (baud == 19200)) {
1070 baud = 1200000;
1071 }
1da177e4
LT		 1072 div_value = ftdi_232bm_baud_to_divisor(baud);
1073 } else {
464cbb24 1074 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 1075 div_value = ftdi_232bm_baud_to_divisor(9600);
1076 div_okay = 0;
669a6db1 1077 baud = 9600;
1da177e4
LT		 1078 }
1079 break;
094c2e6d
MA		 1080 case FT2232H: /* FT2232H chip */
1081 case FT4232H: /* FT4232H chip */
1082 if ((baud <= 12000000) & (baud >= 1200)) {
1083 div_value = ftdi_2232h_baud_to_divisor(baud);
1084 } else if (baud < 1200) {
1085 div_value = ftdi_232bm_baud_to_divisor(baud);
1086 } else {
1087 dbg("%s - Baud rate too high!", __func__);
1088 div_value = ftdi_232bm_baud_to_divisor(9600);
1089 div_okay = 0;
1090 baud = 9600;
1091 }
1092 break;
1da177e4
LT		 1093 } /* priv->chip_type */
1094
1095 if (div_okay) {
1096 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1097 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1098 ftdi_chip_name[priv->chip_type]);
1099 }
1100
95da310e 1101 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1102 return div_value;
1da177e4
LT		 1103}
1104
95da310e
AC		 1105static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1106{
1107 struct ftdi_private *priv = usb_get_serial_port_data(port);
1108 char *buf;
464cbb24 1109 __u16 urb_value;
95da310e
AC		 1110 __u16 urb_index;
1111 __u32 urb_index_value;
1112 int rv;
1113
1114 buf = kmalloc(1, GFP_NOIO);
1115 if (!buf)
1116 return -ENOMEM;
1117
1118 urb_index_value = get_ftdi_divisor(tty, port);
1119 urb_value = (__u16)urb_index_value;
1120 urb_index = (__u16)(urb_index_value >> 16);
1121 if (priv->interface) { /* FT2232C */
1122 urb_index = (__u16)((urb_index << 8) | priv->interface);
1123 }
1124
1125 rv = usb_control_msg(port->serial->dev,
1126 usb_sndctrlpipe(port->serial->dev, 0),
1127 FTDI_SIO_SET_BAUDRATE_REQUEST,
1128 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1129 urb_value, urb_index,
1130 buf, 0, WDR_SHORT_TIMEOUT);
1131
1132 kfree(buf);
1133 return rv;
1134}
1135
557aaa7f
AC		 1136static int write_latency_timer(struct usb_serial_port *port)
1137{
1138 struct ftdi_private *priv = usb_get_serial_port_data(port);
1139 struct usb_device *udev = port->serial->dev;
1140 char buf[1];
1141 int rv = 0;
1142 int l = priv->latency;
1143
1144 if (priv->flags & ASYNC_LOW_LATENCY)
1145 l = 1;
1146
1147 dbg("%s: setting latency timer = %i", __func__, l);
1148
1149 rv = usb_control_msg(udev,
1150 usb_sndctrlpipe(udev, 0),
1151 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1152 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1153 l, priv->interface,
1154 buf, 0, WDR_TIMEOUT);
95da310e 1155
557aaa7f
AC		 1156 if (rv < 0)
1157 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1158 return rv;
1159}
1160
1161static int read_latency_timer(struct usb_serial_port *port)
1162{
1163 struct ftdi_private *priv = usb_get_serial_port_data(port);
1164 struct usb_device *udev = port->serial->dev;
1165 unsigned short latency = 0;
1166 int rv = 0;
1167
1168
1169 dbg("%s", __func__);
1170
1171 rv = usb_control_msg(udev,
1172 usb_rcvctrlpipe(udev, 0),
1173 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1174 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1175 0, priv->interface,
1176 (char *) &latency, 1, WDR_TIMEOUT);
1177
1178 if (rv < 0) {
1179 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1180 return -EIO;
1181 }
1182 return latency;
1183}
1da177e4 1184
464cbb24
AC		 1185static int get_serial_info(struct usb_serial_port *port,
1186 struct serial_struct __user *retinfo)
1da177e4
LT		 1187{
1188 struct ftdi_private *priv = usb_get_serial_port_data(port);
1189 struct serial_struct tmp;
1190
1191 if (!retinfo)
1192 return -EFAULT;
1193 memset(&tmp, 0, sizeof(tmp));
1194 tmp.flags = priv->flags;
1195 tmp.baud_base = priv->baud_base;
1196 tmp.custom_divisor = priv->custom_divisor;
1197 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1198 return -EFAULT;
1199 return 0;
1200} /* get_serial_info */
1201
1202
95da310e 1203static int set_serial_info(struct tty_struct *tty,
464cbb24 1204 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1205{ /* set_serial_info */
1206 struct ftdi_private *priv = usb_get_serial_port_data(port);
1207 struct serial_struct new_serial;
1208 struct ftdi_private old_priv;
1209
1210 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1211 return -EFAULT;
6b447f04
AC		 1212
1213 lock_kernel();
464cbb24 1214 old_priv = *priv;
1da177e4
LT		 1215
1216 /* Do error checking and permission checking */
1217
1218 if (!capable(CAP_SYS_ADMIN)) {
1219 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1220 (priv->flags & ~ASYNC_USR_MASK))) {
1221 unlock_kernel();
1da177e4 1222 return -EPERM;
64905b48 1223 }
1da177e4
LT		 1224 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1225 (new_serial.flags & ASYNC_USR_MASK));
1226 priv->custom_divisor = new_serial.custom_divisor;
1227 goto check_and_exit;
1228 }
1229
1230 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1231 (new_serial.baud_base < 9600)) {
1232 unlock_kernel();
1da177e4 1233 return -EINVAL;
6b447f04 1234 }
1da177e4
LT		 1235
1236 /* Make the changes - these are privileged changes! */
1237
1238 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1239 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1240 priv->custom_divisor = new_serial.custom_divisor;
1241
557aaa7f 1242 write_latency_timer(port);
1da177e4
LT		 1243
1244check_and_exit:
1245 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1246 (priv->flags & ASYNC_SPD_MASK)) {
1247 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1248 tty->alt_speed = 57600;
1da177e4 1249 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1250 tty->alt_speed = 115200;
1da177e4 1251 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1252 tty->alt_speed = 230400;
1da177e4 1253 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1254 tty->alt_speed = 460800;
1da177e4 1255 else
95da310e 1256 tty->alt_speed = 0;
1da177e4
LT		 1257 }
1258 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1259 (priv->flags & ASYNC_SPD_MASK)) ||
1260 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1261 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1262 unlock_kernel();
95da310e 1263 change_speed(tty, port);
1da177e4 1264 }
6b447f04
AC		 1265 else
1266 unlock_kernel();
95da310e 1267 return 0;
1da177e4
LT		 1268
1269} /* set_serial_info */
1270
1271
8f977e42
IA		 1272/* Determine type of FTDI chip based on USB config and descriptor. */
1273static void ftdi_determine_type(struct usb_serial_port *port)
1274{
1275 struct ftdi_private *priv = usb_get_serial_port_data(port);
1276 struct usb_serial *serial = port->serial;
1277 struct usb_device *udev = serial->dev;
1278 unsigned version;
1279 unsigned interfaces;
1280
1281 /* Assume it is not the original SIO device for now. */
f5e09b7c 1282 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1283 priv->write_offset = 0;
1284
1285 version = le16_to_cpu(udev->descriptor.bcdDevice);
1286 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1287 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1288 version, interfaces);
1289 if (interfaces > 1) {
1290 int inter;
1291
094c2e6d
MA		 1292 /* Multiple interfaces.*/
1293 if (version == 0x0800) {
1294 priv->chip_type = FT4232H;
1295 /* Hi-speed - baud clock runs at 120MHz */
1296 priv->baud_base = 120000000 / 2;
1297 } else if (version == 0x0700) {
1298 priv->chip_type = FT2232H;
1299 /* Hi-speed - baud clock runs at 120MHz */
1300 priv->baud_base = 120000000 / 2;
1301 } else
1302 priv->chip_type = FT2232C;
1303
8f977e42
IA		 1304 /* Determine interface code. */
1305 inter = serial->interface->altsetting->desc.bInterfaceNumber;
094c2e6d
MA		 1306 if (inter == 0) {
1307 priv->interface = INTERFACE_A;
1308 } else if (inter == 1) {
1309 priv->interface = INTERFACE_B;
1310 } else if (inter == 2) {
1311 priv->interface = INTERFACE_C;
1312 } else if (inter == 3) {
1313 priv->interface = INTERFACE_D;
1314 }
8f977e42
IA		 1315 /* BM-type devices have a bug where bcdDevice gets set
1316 * to 0x200 when iSerialNumber is 0. */
1317 if (version < 0x500) {
1318 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1319 __func__);
8f977e42
IA		 1320 }
1321 } else if (version < 0x200) {
1322 /* Old device. Assume its the original SIO. */
1323 priv->chip_type = SIO;
1324 priv->baud_base = 12000000 / 16;
1325 priv->write_offset = 1;
1326 } else if (version < 0x400) {
1327 /* Assume its an FT8U232AM (or FT8U245AM) */
1328 /* (It might be a BM because of the iSerialNumber bug,
1329 * but it will still work as an AM device.) */
1330 priv->chip_type = FT8U232AM;
3b009c63 1331 } else if (version < 0x600) {
8f977e42
IA		 1332 /* Assume its an FT232BM (or FT245BM) */
1333 priv->chip_type = FT232BM;
3b009c63
DB		 1334 } else {
1335 /* Assume its an FT232R */
1336 priv->chip_type = FT232RL;
8f977e42 1337 }
c197a8db 1338 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1339}
1340
1341
895f28ba
MA		 1342/* Determine the maximum packet size for the device. This depends on the chip
1343 * type and the USB host capabilities. The value should be obtained from the
1344 * device descriptor as the chip will use the appropriate values for the host.*/
1345static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1346{
1347 struct ftdi_private *priv = usb_get_serial_port_data(port);
1348 struct usb_serial *serial = port->serial;
1349 struct usb_device *udev = serial->dev;
1350
1351 struct usb_interface *interface = serial->interface;
1352 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1353
1354 unsigned num_endpoints;
1355 int i = 0;
1356
1357 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1358 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1359
1360 /* NOTE: some customers have programmed FT232R/FT245R devices
1361 * with an endpoint size of 0 - not good. In this case, we
1362 * want to override the endpoint descriptor setting and use a
1363 * value of 64 for wMaxPacketSize */
1364 for (i = 0; i < num_endpoints; i++) {
1365 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1366 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1367 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1368 if (ep_desc->wMaxPacketSize == 0) {
1369 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1370 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1371 }
1372 }
1373
1374 /* set max packet size based on descriptor */
1375 priv->max_packet_size = ep_desc->wMaxPacketSize;
1376
1377 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1378}
1379
1380
1da177e4
LT		 1381/*
1382 * ***************************************************************************
1383 * Sysfs Attribute
1384 * ***************************************************************************
1385 */
1386
464cbb24
AC		 1387static ssize_t show_latency_timer(struct device *dev,
1388 struct device_attribute *attr, char *buf)
1da177e4
LT		 1389{
1390 struct usb_serial_port *port = to_usb_serial_port(dev);
1391 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1392 if (priv->flags & ASYNC_LOW_LATENCY)
1393 return sprintf(buf, "1\n");
1394 else
1395 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1396}
1397
557aaa7f 1398
1da177e4 1399/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1400static ssize_t store_latency_timer(struct device *dev,
1401 struct device_attribute *attr, const char *valbuf,
1402 size_t count)
1da177e4
LT		 1403{
1404 struct usb_serial_port *port = to_usb_serial_port(dev);
1405 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4
LT		 1406 int v = simple_strtoul(valbuf, NULL, 10);
1407 int rv = 0;
5c09d144 1408
557aaa7f
AC		 1409 priv->latency = v;
1410 rv = write_latency_timer(port);
1411 if (rv < 0)
1da177e4 1412 return -EIO;
1da177e4
LT		 1413 return count;
1414}
1415
1416/* Write an event character directly to the FTDI register. The ASCII
1417 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1418static ssize_t store_event_char(struct device *dev,
1419 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1420{
1421 struct usb_serial_port *port = to_usb_serial_port(dev);
1422 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1423 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1424 char buf[1];
1425 int v = simple_strtoul(valbuf, NULL, 10);
1426 int rv = 0;
5c09d144 1427
441b62c1 1428 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1429
1da177e4
LT		 1430 rv = usb_control_msg(udev,
1431 usb_sndctrlpipe(udev, 0),
1432 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1433 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1434 v, priv->interface,
1da177e4 1435 buf, 0, WDR_TIMEOUT);
5c09d144 1436
1da177e4
LT		 1437 if (rv < 0) {
1438 dbg("Unable to write event character: %i", rv);
1439 return -EIO;
1440 }
5c09d144 1441
1da177e4
LT		 1442 return count;
1443}
1444
464cbb24
AC		 1445static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1446 store_latency_timer);
1da177e4
LT		 1447static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1448
12bdbe03 1449static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1450{
12bdbe03 1451 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1452 int retval = 0;
1da177e4 1453
464cbb24 1454 dbg("%s", __func__);
13f4db9e 1455
1da177e4
LT		 1456 /* XXX I've no idea if the original SIO supports the event_char
1457 * sysfs parameter, so I'm playing it safe. */
1458 if (priv->chip_type != SIO) {
1459 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1460 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1461 if ((!retval) &&
97cd49eb
SM		 1462 (priv->chip_type == FT232BM ||
1463 priv->chip_type == FT2232C ||
094c2e6d
MA		 1464 priv->chip_type == FT232RL ||
1465 priv->chip_type == FT2232H ||
1466 priv->chip_type == FT4232H)) {
12bdbe03 1467 retval = device_create_file(&port->dev,
13f4db9e 1468 &dev_attr_latency_timer);
1da177e4
LT		 1469 }
1470 }
13f4db9e 1471 return retval;
1da177e4
LT		 1472}
1473
12bdbe03 1474static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1475{
12bdbe03 1476 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1477
464cbb24 1478 dbg("%s", __func__);
1da177e4 1479
1da177e4
LT		 1480 /* XXX see create_sysfs_attrs */
1481 if (priv->chip_type != SIO) {
12bdbe03 1482 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1483 if (priv->chip_type == FT232BM ||
1484 priv->chip_type == FT2232C ||
094c2e6d
MA		 1485 priv->chip_type == FT232RL ||
1486 priv->chip_type == FT2232H ||
1487 priv->chip_type == FT4232H) {
12bdbe03 1488 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1489 }
1490 }
5c09d144 1491
1da177e4
LT		 1492}
1493
1494/*
1495 * ***************************************************************************
1496 * FTDI driver specific functions
1497 * ***************************************************************************
1498 */
1499
8f977e42 1500/* Probe function to check for special devices */
464cbb24
AC		 1501static int ftdi_sio_probe(struct usb_serial *serial,
1502 const struct usb_device_id *id)
8f977e42 1503{
464cbb24
AC		 1504 struct ftdi_sio_quirk *quirk =
1505 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1506
1507 if (quirk && quirk->probe) {
1508 int ret = quirk->probe(serial);
1509 if (ret != 0)
1510 return ret;
1511 }
1512
8f977e42
IA		 1513 usb_set_serial_data(serial, (void *)id->driver_info);
1514
fa91d43b 1515 return 0;
8f977e42
IA		 1516}
1517
12bdbe03 1518static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1519{
1da177e4 1520 struct ftdi_private *priv;
0ffbbe25
ON		 1521 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1522
13f4db9e 1523
464cbb24 1524 dbg("%s", __func__);
1da177e4 1525
80b6ca48 1526 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1527 if (!priv) {
194343d9 1528 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1529 sizeof(struct ftdi_private));
1da177e4
LT		 1530 return -ENOMEM;
1531 }
1da177e4 1532
c45d6320 1533 kref_init(&priv->kref);
22465400 1534 spin_lock_init(&priv->tx_lock);
464cbb24 1535 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1536 /* This will push the characters through immediately rather
1537 than queue a task to deliver them */
1538 priv->flags = ASYNC_LOW_LATENCY;
1539
0ffbbe25
ON		 1540 if (quirk && quirk->port_probe)
1541 quirk->port_probe(priv);
1542
1da177e4 1543 /* Increase the size of read buffers */
1bc3c9e1 1544 kfree(port->bulk_in_buffer);
464cbb24 1545 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1546 if (!port->bulk_in_buffer) {
464cbb24 1547 kfree(priv);
1da177e4
LT		 1548 return -ENOMEM;
1549 }
1550 if (port->read_urb) {
1551 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1552 port->read_urb->transfer_buffer_length = BUFSZ;
1553 }
1554
c4028958 1555 priv->port = port;
76854cea 1556
1da177e4
LT		 1557 /* Free port's existing write urb and transfer buffer. */
1558 if (port->write_urb) {
464cbb24 1559 usb_free_urb(port->write_urb);
1da177e4
LT		 1560 port->write_urb = NULL;
1561 }
1bc3c9e1
JJ		 1562 kfree(port->bulk_out_buffer);
1563 port->bulk_out_buffer = NULL;
1da177e4 1564
12bdbe03 1565 usb_set_serial_port_data(port, priv);
1da177e4 1566
464cbb24 1567 ftdi_determine_type(port);
895f28ba 1568 ftdi_set_max_packet_size(port);
557aaa7f 1569 read_latency_timer(port);
12bdbe03
JR		 1570 create_sysfs_attrs(port);
1571 return 0;
1572}
1da177e4 1573
8f977e42
IA		 1574/* Setup for the USB-UIRT device, which requires hardwired
1575 * baudrate (38400 gets mapped to 312500) */
1da177e4 1576/* Called from usbserial:serial_probe */
464cbb24 1577static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1578{
464cbb24 1579 dbg("%s", __func__);
1da177e4 1580
1da177e4
LT		 1581 priv->flags |= ASYNC_SPD_CUST;
1582 priv->custom_divisor = 77;
669a6db1 1583 priv->force_baud = 38400;
8f977e42 1584} /* ftdi_USB_UIRT_setup */
1da177e4 1585
8f977e42
IA		 1586/* Setup for the HE-TIRA1 device, which requires hardwired
1587 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1588
1589static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1590{
464cbb24 1591 dbg("%s", __func__);
1da177e4 1592
1da177e4
LT		 1593 priv->flags |= ASYNC_SPD_CUST;
1594 priv->custom_divisor = 240;
669a6db1 1595 priv->force_baud = 38400;
1da177e4 1596 priv->force_rtscts = 1;
8f977e42 1597} /* ftdi_HE_TIRA1_setup */
1da177e4 1598
b760dac2
MG		 1599/*
1600 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1601 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1602 */
1603static int ndi_latency_timer = 1;
1604
1605/* Setup for the NDI FTDI-based USB devices, which requires hardwired
1606 * baudrate (19200 gets mapped to 1200000).
1607 *
1608 * Called from usbserial:serial_probe.
1609 */
1610static int ftdi_NDI_device_setup(struct usb_serial *serial)
1611{
1612 struct usb_device *udev = serial->dev;
1613 int latency = ndi_latency_timer;
1614 int rv = 0;
1615 char buf[1];
1616
1617 if (latency == 0)
1618 latency = 1;
1619 if (latency > 99)
1620 latency = 99;
1621
1622 dbg("%s setting NDI device latency to %d", __func__, latency);
1623 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1624
1625 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1626 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1627 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1628 latency, 0, buf, 0, WDR_TIMEOUT);
1629 return 0;
1630}
1631
fa91d43b 1632/*
20734345
HW		 1633 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1634 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1635 * userspace using openocd.
fa91d43b 1636 */
20734345 1637static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1638{
1639 struct usb_device *udev = serial->dev;
1640 struct usb_interface *interface = serial->interface;
1641
464cbb24 1642 dbg("%s", __func__);
fa91d43b
TL		 1643
1644 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1645 dev_info(&udev->dev,
1646 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1647 return -ENODEV;
1648 }
1649
1650 return 0;
1651}
1da177e4 1652
546d7eec
KV		 1653/*
1654 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1655 * We have to correct it if we want to read from it.
1656 */
1657static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1658{
1659 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1660 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1661
1662 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1663 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1664 dev_info(&serial->dev->dev,
1665 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1666 }
1667
1668 return 0;
1669}
1670
c45d6320
AS		 1671static void ftdi_sio_priv_release(struct kref *k)
1672{
1673 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1674
1675 kfree(priv);
1676}
1677
12bdbe03
JR		 1678static int ftdi_sio_port_remove(struct usb_serial_port *port)
1679{
1da177e4
LT		 1680 struct ftdi_private *priv = usb_get_serial_port_data(port);
1681
441b62c1 1682 dbg("%s", __func__);
1da177e4 1683
12bdbe03 1684 remove_sysfs_attrs(port);
5c09d144 1685
80193195 1686 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1687
12bdbe03
JR		 1688 return 0;
1689}
1da177e4 1690
cc01f17d
JH		 1691static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags)
1692{
1693 struct urb *urb = port->read_urb;
1694 struct usb_serial *serial = port->serial;
1695 int result;
1696
1697 usb_fill_bulk_urb(urb, serial->dev,
1698 usb_rcvbulkpipe(serial->dev,
1699 port->bulk_in_endpointAddress),
1700 urb->transfer_buffer,
1701 urb->transfer_buffer_length,
1702 ftdi_read_bulk_callback, port);
1703 result = usb_submit_urb(urb, mem_flags);
1704 if (result)
1705 dev_err(&port->dev,
1706 "%s - failed submitting read urb, error %d\n",
1707 __func__, result);
1708 return result;
1709}
1710
a509a7e4 1711static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1da177e4 1712{ /* ftdi_open */
1da177e4
LT		 1713 struct usb_device *dev = port->serial->dev;
1714 struct ftdi_private *priv = usb_get_serial_port_data(port);
1715 unsigned long flags;
5c09d144 1716
1da177e4
LT		 1717 int result = 0;
1718 char buf[1]; /* Needed for the usb_control_msg I think */
1719
441b62c1 1720 dbg("%s", __func__);
1da177e4 1721
22465400
IA		 1722 spin_lock_irqsave(&priv->tx_lock, flags);
1723 priv->tx_bytes = 0;
1724 spin_unlock_irqrestore(&priv->tx_lock, flags);
22465400 1725
557aaa7f
AC		 1726 write_latency_timer(port);
1727
1da177e4
LT		 1728 /* No error checking for this (will get errors later anyway) */
1729 /* See ftdi_sio.h for description of what is reset */
1730 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1731 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1732 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1733 priv->interface, buf, 0, WDR_TIMEOUT);
1734
1735 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1736 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1737 This is same behaviour as serial.c/rs_open() - Kuba */
1738
1739 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1740 if (tty)
1741 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1742
1da177e4 1743 /* Not throttled */
cc01f17d
JH		 1744 spin_lock_irqsave(&port->lock, flags);
1745 port->throttled = 0;
1746 port->throttle_req = 0;
1747 spin_unlock_irqrestore(&port->lock, flags);
1da177e4
LT		 1748
1749 /* Start reading from the device */
cc01f17d
JH		 1750 result = ftdi_submit_read_urb(port, GFP_KERNEL);
1751 if (!result)
c45d6320 1752 kref_get(&priv->kref);
1da177e4
LT		 1753
1754 return result;
1755} /* ftdi_open */
1756
1757
335f8514
AC		 1758static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1759{
1760 struct ftdi_private *priv = usb_get_serial_port_data(port);
1761 char buf[1];
1762
1763 mutex_lock(&port->serial->disc_mutex);
1764 if (!port->serial->disconnected) {
1765 /* Disable flow control */
1766 if (!on && usb_control_msg(port->serial->dev,
1767 usb_sndctrlpipe(port->serial->dev, 0),
1768 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1769 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1770 0, priv->interface, buf, 0,
1771 WDR_TIMEOUT) < 0) {
1772 dev_err(&port->dev, "error from flowcontrol urb\n");
1773 }
1774 /* drop RTS and DTR */
1775 if (on)
1776 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1777 else
1778 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1779 }
1780 mutex_unlock(&port->serial->disc_mutex);
1781}
1da177e4 1782
5c09d144 1783/*
1da177e4
LT		 1784 * usbserial:__serial_close only calls ftdi_close if the point is open
1785 *
1786 * This only gets called when it is the last close
5c09d144
DB		 1787 *
1788 *
1da177e4
LT		 1789 */
1790
335f8514 1791static void ftdi_close(struct usb_serial_port *port)
1da177e4 1792{ /* ftdi_close */
1da177e4 1793 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1794
441b62c1 1795 dbg("%s", __func__);
1da177e4 1796
1da177e4 1797 /* shutdown our bulk read */
794c944e 1798 usb_kill_urb(port->read_urb);
c45d6320 1799 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1800} /* ftdi_close */
1801
1802
5c09d144 1803
1da177e4
LT		 1804/* The SIO requires the first byte to have:
1805 * B0 1
1806 * B1 0
1807 * B2..7 length of message excluding byte 0
1808 *
1809 * The new devices do not require this byte
1810 */
95da310e 1811static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1812 const unsigned char *buf, int count)
1813{ /* ftdi_write */
1814 struct ftdi_private *priv = usb_get_serial_port_data(port);
1815 struct urb *urb;
1816 unsigned char *buffer;
1817 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1818 int status;
1819 int transfer_size;
22465400 1820 unsigned long flags;
1da177e4 1821
441b62c1 1822 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1823
1824 if (count == 0) {
1825 dbg("write request of 0 bytes");
1826 return 0;
1827 }
22465400
IA		 1828 spin_lock_irqsave(&priv->tx_lock, flags);
1829 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1830 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1831 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1832 return 0;
1833 }
62127a58 1834 priv->tx_outstanding_urbs++;
22465400 1835 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1836
1da177e4 1837 data_offset = priv->write_offset;
464cbb24 1838 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1839
1840 /* Determine total transfer size */
1841 transfer_size = count;
1842 if (data_offset > 0) {
1843 /* Original sio needs control bytes too... */
1844 transfer_size += (data_offset *
895f28ba
MA		 1845 ((count + (priv->max_packet_size - 1 - data_offset)) /
1846 (priv->max_packet_size - data_offset)));
1da177e4
LT		 1847 }
1848
464cbb24 1849 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1850 if (!buffer) {
194343d9
GKH		 1851 dev_err(&port->dev,
1852 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1853 count = -ENOMEM;
1854 goto error_no_buffer;
1da177e4
LT		 1855 }
1856
1857 urb = usb_alloc_urb(0, GFP_ATOMIC);
1858 if (!urb) {
194343d9 1859 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1860 count = -ENOMEM;
1861 goto error_no_urb;
1da177e4
LT		 1862 }
1863
1864 /* Copy data */
1865 if (data_offset > 0) {
464cbb24
AC		 1866 /* Original sio requires control byte at start of
1867 each packet. */
895f28ba 1868 int user_pktsz = priv->max_packet_size - data_offset;
1da177e4
LT		 1869 int todo = count;
1870 unsigned char *first_byte = buffer;
1871 const unsigned char *current_position = buf;
1872
1873 while (todo > 0) {
464cbb24 1874 if (user_pktsz > todo)
1da177e4 1875 user_pktsz = todo;
1da177e4 1876 /* Write the control byte at the front of the packet*/
5c09d144 1877 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1878 /* Copy data for packet */
464cbb24 1879 memcpy(first_byte + data_offset,
1da177e4
LT		 1880 current_position, user_pktsz);
1881 first_byte += user_pktsz + data_offset;
1882 current_position += user_pktsz;
1883 todo -= user_pktsz;
1884 }
1885 } else {
1886 /* No control byte required. */
1887 /* Copy in the data to send */
464cbb24 1888 memcpy(buffer, buf, count);
1da177e4
LT		 1889 }
1890
464cbb24
AC		 1891 usb_serial_debug_data(debug, &port->dev, __func__,
1892 transfer_size, buffer);
1da177e4
LT		 1893
1894 /* fill the buffer and send it */
5c09d144 1895 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1896 usb_sndbulkpipe(port->serial->dev,
1897 port->bulk_out_endpointAddress),
1898 buffer, transfer_size,
1899 ftdi_write_bulk_callback, port);
1da177e4
LT		 1900
1901 status = usb_submit_urb(urb, GFP_ATOMIC);
1902 if (status) {
194343d9
GKH		 1903 dev_err(&port->dev,
1904 "%s - failed submitting write urb, error %d\n",
1905 __func__, status);
1da177e4 1906 count = status;
62127a58 1907 goto error;
22465400
IA		 1908 } else {
1909 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1910 priv->tx_outstanding_bytes += count;
1911 priv->tx_bytes += count;
1912 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1913 }
1914
1915 /* we are done with this urb, so let the host driver
1916 * really free it when it is finished with it */
62127a58 1917 usb_free_urb(urb);
1da177e4 1918
441b62c1 1919 dbg("%s write returning: %d", __func__, count);
1da177e4 1920 return count;
62127a58
ON		 1921error:
1922 usb_free_urb(urb);
1923error_no_urb:
464cbb24 1924 kfree(buffer);
62127a58
ON		 1925error_no_buffer:
1926 spin_lock_irqsave(&priv->tx_lock, flags);
1927 priv->tx_outstanding_urbs--;
1928 spin_unlock_irqrestore(&priv->tx_lock, flags);
1929 return count;
1da177e4
LT		 1930} /* ftdi_write */
1931
1932
1933/* This function may get called when the device is closed */
1934
464cbb24 1935static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1936{
22465400 1937 unsigned long flags;
cdc97792 1938 struct usb_serial_port *port = urb->context;
22465400
IA		 1939 struct ftdi_private *priv;
1940 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1941 unsigned long countback;
0fb0aa18 1942 int status = urb->status;
1da177e4
LT		 1943
1944 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1945 kfree(urb->transfer_buffer);
1da177e4 1946
441b62c1 1947 dbg("%s - port %d", __func__, port->number);
5c09d144 1948
22465400
IA		 1949 priv = usb_get_serial_port_data(port);
1950 if (!priv) {
441b62c1 1951 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1952 return;
1953 }
1954 /* account for transferred data */
0de6ab8b 1955 countback = urb->transfer_buffer_length;
22465400
IA		 1956 data_offset = priv->write_offset;
1957 if (data_offset > 0) {
1958 /* Subtract the control bytes */
895f28ba 1959 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
22465400
IA		 1960 }
1961 spin_lock_irqsave(&priv->tx_lock, flags);
1962 --priv->tx_outstanding_urbs;
1963 priv->tx_outstanding_bytes -= countback;
1964 spin_unlock_irqrestore(&priv->tx_lock, flags);
1965
87c1edd2
JW		 1966 if (status) {
1967 dbg("nonzero write bulk status received: %d", status);
87c1edd2
JW		 1968 }
1969
cf2c7481 1970 usb_serial_port_softint(port);
1da177e4
LT		 1971} /* ftdi_write_bulk_callback */
1972
1973
95da310e 1974static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1975{
95da310e 1976 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1977 struct ftdi_private *priv = usb_get_serial_port_data(port);
1978 int room;
1979 unsigned long flags;
1980
441b62c1 1981 dbg("%s - port %d", __func__, port->number);
1da177e4 1982
22465400
IA		 1983 spin_lock_irqsave(&priv->tx_lock, flags);
1984 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1985 /*
1986 * We really can take anything the user throws at us
1987 * but let's pick a nice big number to tell the tty
1988 * layer that we have lots of free space
1989 */
1990 room = 2048;
1991 } else {
1992 room = 0;
1993 }
1994 spin_unlock_irqrestore(&priv->tx_lock, flags);
1995 return room;
95da310e 1996}
1da177e4 1997
95da310e
AC		 1998static int ftdi_chars_in_buffer(struct tty_struct *tty)
1999{
2000 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 2001 struct ftdi_private *priv = usb_get_serial_port_data(port);
2002 int buffered;
2003 unsigned long flags;
2004
441b62c1 2005 dbg("%s - port %d", __func__, port->number);
1da177e4 2006
22465400
IA		 2007 spin_lock_irqsave(&priv->tx_lock, flags);
2008 buffered = (int)priv->tx_outstanding_bytes;
2009 spin_unlock_irqrestore(&priv->tx_lock, flags);
2010 if (buffered < 0) {
194343d9
GKH		 2011 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
2012 __func__);
22465400
IA		 2013 buffered = 0;
2014 }
2015 return buffered;
95da310e 2016}
1da177e4 2017
cc01f17d
JH		 2018static int ftdi_process_packet(struct tty_struct *tty,
2019 struct usb_serial_port *port, struct ftdi_private *priv,
2020 char *packet, int len)
95da310e 2021{
1da177e4 2022 int i;
cc01f17d
JH		 2023 char status;
2024 char flag;
2025 char *ch;
1da177e4 2026
441b62c1 2027 dbg("%s - port %d", __func__, port->number);
1da177e4 2028
cc01f17d
JH		 2029 if (len < 2) {
2030 dbg("malformed packet");
2031 return 0;
1da177e4
LT		 2032 }
2033
cc01f17d
JH		 2034 /* Compare new line status to the old one, signal if different/
2035 N.B. packet may be processed more than once, but differences
2036 are only processed once. */
2037 status = packet[0] & FTDI_STATUS_B0_MASK;
2038 if (status != priv->prev_status) {
2039 priv->diff_status |= status ^ priv->prev_status;
2040 wake_up_interruptible(&priv->delta_msr_wait);
2041 priv->prev_status = status;
1da177e4
LT		 2042 }
2043
cc01f17d
JH		 2044 /*
2045 * Although the device uses a bitmask and hence can have multiple
2046 * errors on a packet - the order here sets the priority the error is
2047 * returned to the tty layer.
2048 */
2049 flag = TTY_NORMAL;
2050 if (packet[1] & FTDI_RS_OE) {
2051 flag = TTY_OVERRUN;
2052 dbg("OVERRRUN error");
1da177e4 2053 }
cc01f17d
JH		 2054 if (packet[1] & FTDI_RS_BI) {
2055 flag = TTY_BREAK;
2056 dbg("BREAK received");
2057 usb_serial_handle_break(port);
2058 }
2059 if (packet[1] & FTDI_RS_PE) {
2060 flag = TTY_PARITY;
2061 dbg("PARITY error");
2062 }
2063 if (packet[1] & FTDI_RS_FE) {
2064 flag = TTY_FRAME;
2065 dbg("FRAMING error");
76854cea 2066 }
1da177e4 2067
cc01f17d
JH		 2068 len -= 2;
2069 if (!len)
2070 return 0; /* status only */
2071 ch = packet + 2;
2072
2073 if (!(port->console && port->sysrq) && flag == TTY_NORMAL)
2074 tty_insert_flip_string(tty, ch, len);
2075 else {
2076 for (i = 0; i < len; i++, ch++) {
2077 if (!usb_serial_handle_sysrq_char(tty, port, *ch))
2078 tty_insert_flip_char(tty, *ch, flag);
76854cea 2079 }
cc01f17d
JH		 2080 }
2081 return len;
2082}
76854cea 2083
cc01f17d
JH		 2084static void ftdi_process_read(struct usb_serial_port *port)
2085{
2086 struct urb *urb = port->read_urb;
2087 struct tty_struct *tty;
2088 struct ftdi_private *priv = usb_get_serial_port_data(port);
2089 char *data = (char *)urb->transfer_buffer;
2090 int i;
2091 int len;
2092 int count = 0;
1da177e4 2093
cc01f17d
JH		 2094 tty = tty_port_tty_get(&port->port);
2095 if (!tty)
2096 return;
1da177e4 2097
cc01f17d
JH		 2098 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2099 len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2100 count += ftdi_process_packet(tty, port, priv, &data[i], len);
2101 }
1da177e4 2102
cc01f17d 2103 if (count)
1da177e4 2104 tty_flip_buffer_push(tty);
cc01f17d
JH		 2105 tty_kref_put(tty);
2106}
1da177e4 2107
cc01f17d
JH		 2108static void ftdi_read_bulk_callback(struct urb *urb)
2109{
2110 struct usb_serial_port *port = urb->context;
2111 unsigned long flags;
76854cea 2112
cc01f17d 2113 dbg("%s - port %d", __func__, port->number);
1da177e4 2114
cc01f17d
JH		 2115 if (urb->status) {
2116 dbg("%s - nonzero read bulk status received: %d",
2117 __func__, urb->status);
2118 return;
1da177e4 2119 }
1da177e4 2120
cc01f17d
JH		 2121 usb_serial_debug_data(debug, &port->dev, __func__,
2122 urb->actual_length, urb->transfer_buffer);
2123 ftdi_process_read(port);
2124
2125 spin_lock_irqsave(&port->lock, flags);
2126 port->throttled = port->throttle_req;
2127 if (!port->throttled) {
2128 spin_unlock_irqrestore(&port->lock, flags);
2129 ftdi_submit_read_urb(port, GFP_ATOMIC);
2130 } else
2131 spin_unlock_irqrestore(&port->lock, flags);
2132}
1da177e4 2133
95da310e 2134static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2135{
95da310e 2136 struct usb_serial_port *port = tty->driver_data;
1da177e4 2137 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2138 __u16 urb_value = 0;
1da177e4 2139 char buf[1];
5c09d144 2140
1da177e4
LT		 2141 /* break_state = -1 to turn on break, and 0 to turn off break */
2142 /* see drivers/char/tty_io.c to see it used */
2143 /* last_set_data_urb_value NEVER has the break bit set in it */
2144
464cbb24 2145 if (break_state)
1da177e4 2146 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2147 else
5c09d144 2148 urb_value = priv->last_set_data_urb_value;
5c09d144 2149
464cbb24
AC		 2150 if (usb_control_msg(port->serial->dev,
2151 usb_sndctrlpipe(port->serial->dev, 0),
2152 FTDI_SIO_SET_DATA_REQUEST,
2153 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2154 urb_value , priv->interface,
2155 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2156 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2157 "(state was %d)\n", __func__, break_state);
5c09d144 2158 }
1da177e4 2159
464cbb24
AC		 2160 dbg("%s break state is %d - urb is %d", __func__,
2161 break_state, urb_value);
5c09d144 2162
1da177e4
LT		 2163}
2164
2165
2166/* old_termios contains the original termios settings and tty->termios contains
2167 * the new setting to be used
2168 * WARNING: set_termios calls this with old_termios in kernel space
2169 */
2170
95da310e
AC		 2171static void ftdi_set_termios(struct tty_struct *tty,
2172 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2173{ /* ftdi_termios */
2174 struct usb_device *dev = port->serial->dev;
1da177e4 2175 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2176 struct ktermios *termios = tty->termios;
669a6db1 2177 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2178 __u16 urb_value; /* will hold the new flags */
2179 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2180
464cbb24 2181 /* Added for xon/xoff support */
669a6db1 2182 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2183 unsigned char vstop;
2184 unsigned char vstart;
5c09d144 2185
441b62c1 2186 dbg("%s", __func__);
1da177e4 2187
464cbb24
AC		 2188 /* Force baud rate if this device requires it, unless it is set to
2189 B0. */
669a6db1 2190 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2191 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2192 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2193 priv->force_baud);
1da177e4
LT		 2194 }
2195
2196 /* Force RTS-CTS if this device requires it. */
2197 if (priv->force_rtscts) {
441b62c1 2198 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2199 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2200 }
2201
669a6db1 2202 cflag = termios->c_cflag;
1da177e4 2203
5c09d144
DB		 2204 /* FIXME -For this cut I don't care if the line is really changing or
2205 not - so just do the change regardless - should be able to
1da177e4 2206 compare old_termios and tty->termios */
5c09d144 2207 /* NOTE These routines can get interrupted by
464cbb24
AC		 2208 ftdi_sio_read_bulk_callback - need to examine what this means -
2209 don't see any problems yet */
5c09d144 2210
1da177e4 2211 /* Set number of data bits, parity, stop bits */
5c09d144 2212
1da177e4
LT		 2213 urb_value = 0;
2214 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2215 FTDI_SIO_SET_DATA_STOP_BITS_1);
38fcb830
RK		 2216 if (cflag & PARENB) {
2217 if (cflag & CMSPAR)
2218 urb_value |= cflag & PARODD ?
2219 FTDI_SIO_SET_DATA_PARITY_MARK :
2220 FTDI_SIO_SET_DATA_PARITY_SPACE;
2221 else
2222 urb_value |= cflag & PARODD ?
2223 FTDI_SIO_SET_DATA_PARITY_ODD :
2224 FTDI_SIO_SET_DATA_PARITY_EVEN;
2225 } else {
2226 urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2227 }
1da177e4
LT		 2228 if (cflag & CSIZE) {
2229 switch (cflag & CSIZE) {
2230 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2231 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2232 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2233 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2234 default:
194343d9 2235 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2236 }
2237 }
2238
464cbb24
AC		 2239 /* This is needed by the break command since it uses the same command
2240 - but is or'ed with this value */
1da177e4 2241 priv->last_set_data_urb_value = urb_value;
5c09d144 2242
1da177e4 2243 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2244 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2245 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2246 urb_value , priv->interface,
279e1545 2247 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2248 dev_err(&port->dev, "%s FAILED to set "
2249 "databits/stopbits/parity\n", __func__);
5c09d144 2250 }
1da177e4
LT		 2251
2252 /* Now do the baudrate */
464cbb24 2253 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2254 /* Disable flow control */
2255 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2256 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2257 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2258 0, priv->interface,
1da177e4 2259 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2260 dev_err(&port->dev,
2261 "%s error from disable flowcontrol urb\n",
2262 __func__);
5c09d144 2263 }
1da177e4 2264 /* Drop RTS and DTR */
74ede0ff 2265 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2266 } else {
2267 /* set the baudrate determined before */
464cbb24 2268 if (change_speed(tty, port))
194343d9
GKH		 2269 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2270 __func__);
72a755fc 2271 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2272 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2273 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2274 }
2275
2276 /* Set flow control */
2277 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2278 if (cflag & CRTSCTS) {
441b62c1 2279 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2280 if (usb_control_msg(dev,
1da177e4 2281 usb_sndctrlpipe(dev, 0),
5c09d144 2282 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2283 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2284 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2285 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2286 dev_err(&port->dev,
2287 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2288 }
2289
2290 } else {
1da177e4
LT		 2291 /*
2292 * Xon/Xoff code
2293 *
464cbb24
AC		 2294 * Check the IXOFF status in the iflag component of the
2295 * termios structure. If IXOFF is not set, the pre-xon/xoff
2296 * code is executed.
2297 */
1da177e4 2298 if (iflag & IXOFF) {
464cbb24
AC		 2299 dbg("%s request to enable xonxoff iflag=%04x",
2300 __func__, iflag);
2301 /* Try to enable the XON/XOFF on the ftdi_sio
2302 * Set the vstart and vstop -- could have been done up
2303 * above where a lot of other dereferencing is done but
2304 * that would be very inefficient as vstart and vstop
2305 * are not always needed.
2306 */
669a6db1
AC		 2307 vstart = termios->c_cc[VSTART];
2308 vstop = termios->c_cc[VSTOP];
464cbb24 2309 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2310
2311 if (usb_control_msg(dev,
2312 usb_sndctrlpipe(dev, 0),
2313 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2314 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2315 urb_value , (FTDI_SIO_XON_XOFF_HS
2316 | priv->interface),
2317 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2318 dev_err(&port->dev, "urb failed to set to "
2319 "xon/xoff flow control\n");
1da177e4
LT		 2320 }
2321 } else {
464cbb24
AC		 2322 /* else clause to only run if cflag ! CRTSCTS and iflag
2323 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2324 * stack - not by device */
441b62c1 2325 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2326 if (usb_control_msg(dev,
1da177e4 2327 usb_sndctrlpipe(dev, 0),
5c09d144 2328 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2329 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2330 0, priv->interface,
1da177e4 2331 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2332 dev_err(&port->dev,
2333 "urb failed to clear flow control\n");
5c09d144 2334 }
1da177e4 2335 }
5c09d144 2336
1da177e4
LT		 2337 }
2338 return;
95da310e 2339}
1da177e4 2340
95da310e 2341static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2342{
95da310e 2343 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2344 struct ftdi_private *priv = usb_get_serial_port_data(port);
2345 unsigned char buf[2];
2346 int ret;
2347
441b62c1 2348 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2349 switch (priv->chip_type) {
2350 case SIO:
2351 /* Request the status from the device */
464cbb24
AC		 2352 ret = usb_control_msg(port->serial->dev,
2353 usb_rcvctrlpipe(port->serial->dev, 0),
2354 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2355 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2356 0, 0,
2357 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2358 if (ret < 0)
464cbb24 2359 return ret;
1da177e4
LT		 2360 break;
2361 case FT8U232AM:
2362 case FT232BM:
2363 case FT2232C:
ed6e5282 2364 case FT232RL:
094c2e6d
MA		 2365 case FT2232H:
2366 case FT4232H:
464cbb24
AC		 2367 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2368 value) - in the same format as the data returned from the in
2369 point */
2370 ret = usb_control_msg(port->serial->dev,
2371 usb_rcvctrlpipe(port->serial->dev, 0),
2372 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2373 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2374 0, priv->interface,
2375 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2376 if (ret < 0)
464cbb24 2377 return ret;
1da177e4
LT		 2378 break;
2379 default:
2380 return -EFAULT;
1da177e4 2381 }
5c09d144 2382
1da177e4
LT		 2383 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2384 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2385 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2386 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2387 priv->last_dtr_rts;
1da177e4
LT		 2388}
2389
464cbb24 2390static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2391 unsigned int set, unsigned int clear)
1da177e4 2392{
95da310e 2393 struct usb_serial_port *port = tty->driver_data;
441b62c1 2394 dbg("%s TIOCMSET", __func__);
74ede0ff 2395 return update_mctrl(port, set, clear);
1da177e4
LT		 2396}
2397
2398
464cbb24
AC		 2399static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2400 unsigned int cmd, unsigned long arg)
1da177e4 2401{
95da310e 2402 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2403 struct ftdi_private *priv = usb_get_serial_port_data(port);
2404
441b62c1 2405 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2406
2407 /* Based on code from acm.c and others */
2408 switch (cmd) {
2409
1da177e4 2410 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2411 return get_serial_info(port,
2412 (struct serial_struct __user *) arg);
1da177e4
LT		 2413
2414 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2415 return set_serial_info(tty, port,
2416 (struct serial_struct __user *) arg);
1da177e4
LT		 2417
2418 /*
2419 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2420 * - mask passed in arg for lines of interest
2421 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2422 * Caller should use TIOCGICOUNT to see which one it was.
2423 *
2424 * This code is borrowed from linux/drivers/char/serial.c
2425 */
2426 case TIOCMIWAIT:
2427 while (priv != NULL) {
2428 interruptible_sleep_on(&priv->delta_msr_wait);
2429 /* see if a signal did it */
2430 if (signal_pending(current))
2431 return -ERESTARTSYS;
2432 else {
2433 char diff = priv->diff_status;
2434
464cbb24 2435 if (diff == 0)
1da177e4 2436 return -EIO; /* no change => error */
1da177e4
LT		 2437
2438 /* Consume all events */
2439 priv->diff_status = 0;
2440
464cbb24
AC		 2441 /* Return 0 if caller wanted to know about
2442 these bits */
2443 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2444 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2445 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2446 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2447 return 0;
2448 }
2449 /*
464cbb24
AC		 2450 * Otherwise caller can't care less about what
2451 * happened,and so we continue to wait for more
2452 * events.
1da177e4
LT		 2453 */
2454 }
2455 }
95da310e 2456 return 0;
1da177e4
LT		 2457 default:
2458 break;
1da177e4 2459 }
464cbb24
AC		 2460 /* This is not necessarily an error - turns out the higher layers
2461 * will do some ioctls themselves (see comment above)
1da177e4 2462 */
441b62c1 2463 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2464 return -ENOIOCTLCMD;
2465}
1da177e4 2466
95da310e 2467static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2468{
95da310e 2469 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2470 unsigned long flags;
2471
441b62c1 2472 dbg("%s - port %d", __func__, port->number);
1da177e4 2473
cc01f17d
JH		 2474 spin_lock_irqsave(&port->lock, flags);
2475 port->throttle_req = 1;
2476 spin_unlock_irqrestore(&port->lock, flags);
1da177e4
LT		 2477}
2478
cc01f17d 2479void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2480{
95da310e 2481 struct usb_serial_port *port = tty->driver_data;
cc01f17d 2482 int was_throttled;
1da177e4
LT		 2483 unsigned long flags;
2484
441b62c1 2485 dbg("%s - port %d", __func__, port->number);
1da177e4 2486
cc01f17d
JH		 2487 spin_lock_irqsave(&port->lock, flags);
2488 was_throttled = port->throttled;
2489 port->throttled = port->throttle_req = 0;
2490 spin_unlock_irqrestore(&port->lock, flags);
1da177e4 2491
cc01f17d
JH		 2492 /* Resubmit urb if throttled and open. */
2493 if (was_throttled && test_bit(ASYNCB_INITIALIZED, &port->port.flags))
2494 ftdi_submit_read_urb(port, GFP_KERNEL);
1da177e4
LT		 2495}
2496
464cbb24 2497static int __init ftdi_init(void)
1da177e4
LT		 2498{
2499 int retval;
2500
441b62c1 2501 dbg("%s", __func__);
fdcb0a0f
IA		 2502 if (vendor > 0 && product > 0) {
2503 /* Add user specified VID/PID to reserved element of table. */
2504 int i;
2505 for (i = 0; id_table_combined[i].idVendor; i++)
2506 ;
2507 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2508 id_table_combined[i].idVendor = vendor;
2509 id_table_combined[i].idProduct = product;
2510 }
8f977e42 2511 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2512 if (retval)
8f977e42 2513 goto failed_sio_register;
1da177e4 2514 retval = usb_register(&ftdi_driver);
5c09d144 2515 if (retval)
1da177e4
LT		 2516 goto failed_usb_register;
2517
c197a8db
GKH		 2518 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2519 DRIVER_DESC "\n");
1da177e4
LT		 2520 return 0;
2521failed_usb_register:
8f977e42
IA		 2522 usb_serial_deregister(&ftdi_sio_device);
2523failed_sio_register:
1da177e4
LT		 2524 return retval;
2525}
2526
2527
464cbb24 2528static void __exit ftdi_exit(void)
1da177e4
LT		 2529{
2530
441b62c1 2531 dbg("%s", __func__);
1da177e4 2532
464cbb24
AC		 2533 usb_deregister(&ftdi_driver);
2534 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2535
2536}
2537
2538
2539module_init(ftdi_init);
2540module_exit(ftdi_exit);
2541
464cbb24
AC		 2542MODULE_AUTHOR(DRIVER_AUTHOR);
2543MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2544MODULE_LICENSE("GPL");
2545
2546module_param(debug, bool, S_IRUGO | S_IWUSR);
2547MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2548module_param(vendor, ushort, 0);
2549MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2550 __MODULE_STRING(FTDI_VID)")");
2551module_param(product, ushort, 0);
68265043 2552MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2553
b760dac2
MG		 2554module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2555MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
Linux kernel - Deliverables
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