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Merge branch 'for-linus' of git://neil.brown.name/md
[deliverable/linux.git] / drivers / usb / serial / ftdi_sio.c
CommitLineData
1da177e4
LT		 1/*
2 * USB FTDI SIO driver
3 *
5c09d144
DB		 4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
1da177e4
LT		 6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
5c09d144
DB		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
1da177e4 14 *
464cbb24
AC		 15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
1da177e4
LT		 17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
504b55cc
GKH		 21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 23 *
24 */
25
26/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27/* Thanx to FTDI for so kindly providing details of the protocol required */
28/* to talk to the device */
464cbb24
AC		 29/* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
1da177e4 31
1da177e4
LT		 32#include <linux/kernel.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/slab.h>
36#include <linux/tty.h>
37#include <linux/tty_driver.h>
38#include <linux/tty_flip.h>
39#include <linux/module.h>
40#include <linux/spinlock.h>
464cbb24 41#include <linux/uaccess.h>
1da177e4
LT		 42#include <linux/usb.h>
43#include <linux/serial.h>
a969888c 44#include <linux/usb/serial.h>
1da177e4
LT		 45#include "ftdi_sio.h"
46
47/*
48 * Version Information
49 */
094c2e6d 50#define DRIVER_VERSION "v1.5.0"
1da177e4
LT		 51#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
52#define DRIVER_DESC "USB FTDI Serial Converters Driver"
53
54static int debug;
fdcb0a0f
IA		 55static __u16 vendor = FTDI_VID;
56static __u16 product;
1da177e4 57
0ffbbe25 58struct ftdi_private {
c45d6320 59 struct kref kref;
0ffbbe25 60 ftdi_chip_type_t chip_type;
464cbb24 61 /* type of device, either SIO or FT8U232AM */
0ffbbe25 62 int baud_base; /* baud base clock for divisor setting */
464cbb24
AC		 63 int custom_divisor; /* custom_divisor kludge, this is for
64 baud_base (different from what goes to the
65 chip!) */
0ffbbe25 66 __u16 last_set_data_urb_value ;
464cbb24
AC		 67 /* the last data state set - needed for doing
68 * a break
69 */
70 int write_offset; /* This is the offset in the usb data block to
71 * write the serial data - it varies between
72 * devices
0ffbbe25
ON		 73 */
74 int flags; /* some ASYNC_xxxx flags are supported */
75 unsigned long last_dtr_rts; /* saved modem control outputs */
464cbb24 76 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
0ffbbe25
ON		 77 char prev_status, diff_status; /* Used for TIOCMIWAIT */
78 __u8 rx_flags; /* receive state flags (throttling) */
79 spinlock_t rx_lock; /* spinlock for receive state */
80 struct delayed_work rx_work;
81 struct usb_serial_port *port;
82 int rx_processed;
83 unsigned long rx_bytes;
84
094c2e6d
MA		 85 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface
86 (0 for FT232/245) */
0ffbbe25 87
464cbb24
AC		 88 speed_t force_baud; /* if non-zero, force the baud rate to
89 this value */
90 int force_rtscts; /* if non-zero, force RTS-CTS to always
91 be enabled */
0ffbbe25 92
557aaa7f 93 unsigned int latency; /* latency setting in use */
0ffbbe25
ON		 94 spinlock_t tx_lock; /* spinlock for transmit state */
95 unsigned long tx_bytes;
96 unsigned long tx_outstanding_bytes;
97 unsigned long tx_outstanding_urbs;
895f28ba 98 unsigned short max_packet_size;
0ffbbe25
ON		 99};
100
8f977e42
IA		 101/* struct ftdi_sio_quirk is used by devices requiring special attention. */
102struct ftdi_sio_quirk {
fa91d43b 103 int (*probe)(struct usb_serial *);
464cbb24
AC		 104 /* Special settings for probed ports. */
105 void (*port_probe)(struct ftdi_private *);
8f977e42
IA		 106};
107
464cbb24
AC		 108static int ftdi_jtag_probe(struct usb_serial *serial);
109static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
110static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
111static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 112
20734345
HW		 113static struct ftdi_sio_quirk ftdi_jtag_quirk = {
114 .probe = ftdi_jtag_probe,
fa91d43b
TL		 115};
116
546d7eec
KV		 117static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
118 .probe = ftdi_mtxorb_hack_setup,
119};
120
8f977e42 121static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 122 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 123};
124
125static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 126 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 127};
128
129/*
130 * The 8U232AM has the same API as the sio except for:
131 * - it can support MUCH higher baudrates; up to:
132 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
133 * o 230400 at 12MHz
134 * so .. 8U232AM's baudrate setting codes are different
135 * - it has a two byte status code.
136 * - it returns characters every 16ms (the FTDI does it every 40ms)
137 *
138 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
139 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
140 * combinations in both tables.
8f977e42
IA		 141 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
142 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 143 */
144
145
1da177e4
LT		 146
147static struct usb_device_id id_table_combined [] = {
2011e924
JD		 148 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
01ba0856 150 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
6e1ab3ed
PM		 151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 159 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 160 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 161 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 162 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 163 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 164 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 167 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 168 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
094c2e6d 169 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
c0f8d561 170 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 171 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 172 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
1da177e4
LT		 173 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
174 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
f2ee6955 175 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
1da177e4
LT		 176 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
185 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
191 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
464cbb24
AC		 194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 234 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 240 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 280 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 282 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 284 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 286 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 288 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 290 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 458 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 459 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 460 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 461 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
509 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
510 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 511 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
512 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
513 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
514 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 515 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
516 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
517 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
518 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 535 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 536 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 537 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 539 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 540 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 541 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
546 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 549 /*
42f8aa94
PS		 550 * Due to many user requests for multiple ELV devices we enable
551 * them by default.
e6ac4a40 552 */
42f8aa94
PS		 553 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 571 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 572 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 573 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
5c09d144
DB		 574 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
575 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
576 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
577 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
578 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
579 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
580 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 581 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
1da177e4
LT		 582 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
583 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
584 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
585 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 586 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 587 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
c3d36c45 588 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
ef31fec0 589 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 590 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 591 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
592 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
593 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
594 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 595 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
596 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
598 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
599 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
600 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
601 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
602 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
603 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
604 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 605 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 606 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 609 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
610 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 611 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
612 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
614 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 615 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 617 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 618 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
619 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 620 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
621 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 622 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 623 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 624 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 625 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 626 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
627 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 628 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 629 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 630 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 631 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
632 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 633 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 634 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 635 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 636 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 637 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 638 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 639 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 640 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 641 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 642 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 643 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
644 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
645 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 646 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
822c7ef4 647 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 648 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 649 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 650 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 651 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 652 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 653 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 654 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
655 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
656 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
657 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
658 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 659 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
660 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
661 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
662 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 663 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 664 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 665 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
96285cb8
GC		 666 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
667 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 668 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 669 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
e38c2874 670 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) },
7f82b6dd
AW		 671 { USB_DEVICE(ATMEL_VID, STK541_PID) },
672 { USB_DEVICE(DE_VID, STB_PID) },
673 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 674 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
675 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 676 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 677 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
678 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
d46130ab 679 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
fdcb0a0f
IA		 680 { }, /* Optional parameter entry */
681 { } /* Terminating entry */
1da177e4
LT		 682};
683
464cbb24 684MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 685
686static struct usb_driver ftdi_driver = {
687 .name = "ftdi_sio",
688 .probe = usb_serial_probe,
689 .disconnect = usb_serial_disconnect,
690 .id_table = id_table_combined,
5c09d144 691 .no_dynamic_id = 1,
1da177e4
LT		 692};
693
4c4c9432 694static const char *ftdi_chip_name[] = {
1da177e4
LT		 695 [SIO] = "SIO", /* the serial part of FT8U100AX */
696 [FT8U232AM] = "FT8U232AM",
697 [FT232BM] = "FT232BM",
698 [FT2232C] = "FT2232C",
d8b21606 699 [FT232RL] = "FT232RL",
094c2e6d
MA		 700 [FT2232H] = "FT2232H",
701 [FT4232H] = "FT4232H"
1da177e4
LT		 702};
703
704
705/* Constants for read urb and write urb */
706#define BUFSZ 512
1da177e4
LT		 707
708/* rx_flags */
709#define THROTTLED 0x01
710#define ACTUALLY_THROTTLED 0x02
711
1da177e4
LT		 712/* Used for TIOCMIWAIT */
713#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
714#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
715/* End TIOCMIWAIT */
716
bbc5d276
RK		 717#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
718 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 719
720/* function prototypes for a FTDI serial converter */
464cbb24
AC		 721static int ftdi_sio_probe(struct usb_serial *serial,
722 const struct usb_device_id *id);
464cbb24
AC		 723static int ftdi_sio_port_probe(struct usb_serial_port *port);
724static int ftdi_sio_port_remove(struct usb_serial_port *port);
725static int ftdi_open(struct tty_struct *tty,
726 struct usb_serial_port *port, struct file *filp);
335f8514
AC		 727static void ftdi_close(struct usb_serial_port *port);
728static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 729static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
730 const unsigned char *buf, int count);
731static int ftdi_write_room(struct tty_struct *tty);
732static int ftdi_chars_in_buffer(struct tty_struct *tty);
733static void ftdi_write_bulk_callback(struct urb *urb);
734static void ftdi_read_bulk_callback(struct urb *urb);
735static void ftdi_process_read(struct work_struct *work);
736static void ftdi_set_termios(struct tty_struct *tty,
737 struct usb_serial_port *port, struct ktermios *old);
738static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
739static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
740 unsigned int set, unsigned int clear);
741static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
742 unsigned int cmd, unsigned long arg);
743static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
744static void ftdi_throttle(struct tty_struct *tty);
745static void ftdi_unthrottle(struct tty_struct *tty);
746
747static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
748static unsigned short int ftdi_232am_baud_to_divisor(int baud);
749static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
750static __u32 ftdi_232bm_baud_to_divisor(int baud);
094c2e6d
MA		 751static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
752static __u32 ftdi_2232h_baud_to_divisor(int baud);
1da177e4 753
ea65370d 754static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 755 .driver = {
756 .owner = THIS_MODULE,
269bda1c 757 .name = "ftdi_sio",
18fcac35 758 },
269bda1c 759 .description = "FTDI USB Serial Device",
d9b1b787 760 .usb_driver = &ftdi_driver ,
8f977e42 761 .id_table = id_table_combined,
1da177e4 762 .num_ports = 1,
8f977e42 763 .probe = ftdi_sio_probe,
12bdbe03
JR		 764 .port_probe = ftdi_sio_port_probe,
765 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 766 .open = ftdi_open,
767 .close = ftdi_close,
335f8514 768 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 769 .throttle = ftdi_throttle,
770 .unthrottle = ftdi_unthrottle,
771 .write = ftdi_write,
772 .write_room = ftdi_write_room,
773 .chars_in_buffer = ftdi_chars_in_buffer,
774 .read_bulk_callback = ftdi_read_bulk_callback,
775 .write_bulk_callback = ftdi_write_bulk_callback,
776 .tiocmget = ftdi_tiocmget,
777 .tiocmset = ftdi_tiocmset,
778 .ioctl = ftdi_ioctl,
779 .set_termios = ftdi_set_termios,
780 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 781};
782
1da177e4
LT		 783
784#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 785#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 786
787/* High and low are for DTR, RTS etc etc */
788#define HIGH 1
789#define LOW 0
790
22465400
IA		 791/* number of outstanding urbs to prevent userspace DoS from happening */
792#define URB_UPPER_LIMIT 42
793
1da177e4
LT		 794/*
795 * ***************************************************************************
fa91d43b 796 * Utility functions
1da177e4
LT		 797 * ***************************************************************************
798 */
799
800static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
801{
802 unsigned short int divisor;
464cbb24
AC		 803 /* divisor shifted 3 bits to the left */
804 int divisor3 = base / 2 / baud;
805 if ((divisor3 & 0x7) == 7)
806 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 807 divisor = divisor3 >> 3;
808 divisor3 &= 0x7;
464cbb24
AC		 809 if (divisor3 == 1)
810 divisor |= 0xc000;
811 else if (divisor3 >= 4)
812 divisor |= 0x4000;
813 else if (divisor3 != 0)
814 divisor |= 0x8000;
815 else if (divisor == 1)
816 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 817 return divisor;
818}
819
820static unsigned short int ftdi_232am_baud_to_divisor(int baud)
821{
464cbb24 822 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 823}
824
825static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
826{
827 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
828 __u32 divisor;
464cbb24
AC		 829 /* divisor shifted 3 bits to the left */
830 int divisor3 = base / 2 / baud;
1da177e4
LT		 831 divisor = divisor3 >> 3;
832 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
833 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 834 if (divisor == 1)
835 divisor = 0;
836 else if (divisor == 0x4001)
837 divisor = 1;
1da177e4
LT		 838 return divisor;
839}
840
841static __u32 ftdi_232bm_baud_to_divisor(int baud)
842{
464cbb24 843 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 844}
845
094c2e6d
MA		 846static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
847{
848 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
849 __u32 divisor;
850 int divisor3;
851
852 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
853 divisor3 = (base / 10 / baud) * 8;
854
855 divisor = divisor3 >> 3;
856 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
857 /* Deal with special cases for highest baud rates. */
858 if (divisor == 1)
859 divisor = 0;
860 else if (divisor == 0x4001)
861 divisor = 1;
862 /*
863 * Set this bit to turn off a divide by 2.5 on baud rate generator
864 * This enables baud rates up to 12Mbaud but cannot reach below 1200
865 * baud with this bit set
866 */
867 divisor |= 0x00020000;
868 return divisor;
869}
870
871static __u32 ftdi_2232h_baud_to_divisor(int baud)
872{
873 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
874}
875
74ede0ff
IA		 876#define set_mctrl(port, set) update_mctrl((port), (set), 0)
877#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
878
464cbb24
AC		 879static int update_mctrl(struct usb_serial_port *port, unsigned int set,
880 unsigned int clear)
1da177e4
LT		 881{
882 struct ftdi_private *priv = usb_get_serial_port_data(port);
883 char *buf;
74ede0ff 884 unsigned urb_value;
1da177e4 885 int rv;
1da177e4 886
74ede0ff 887 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 888 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 889 return 0; /* no change */
890 }
1da177e4 891
1da177e4 892 buf = kmalloc(1, GFP_NOIO);
9b0f2582 893 if (!buf)
1da177e4 894 return -ENOMEM;
74ede0ff
IA		 895
896 clear &= ~set; /* 'set' takes precedence over 'clear' */
897 urb_value = 0;
898 if (clear & TIOCM_DTR)
899 urb_value |= FTDI_SIO_SET_DTR_LOW;
900 if (clear & TIOCM_RTS)
901 urb_value |= FTDI_SIO_SET_RTS_LOW;
902 if (set & TIOCM_DTR)
903 urb_value |= FTDI_SIO_SET_DTR_HIGH;
904 if (set & TIOCM_RTS)
905 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 906 rv = usb_control_msg(port->serial->dev,
907 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 908 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 909 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 910 urb_value, priv->interface,
1da177e4
LT		 911 buf, 0, WDR_TIMEOUT);
912
913 kfree(buf);
74ede0ff 914 if (rv < 0) {
43b11d33 915 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 916 __func__,
74ede0ff
IA		 917 (set & TIOCM_DTR) ? "HIGH" :
918 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
919 (set & TIOCM_RTS) ? "HIGH" :
920 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
921 } else {
441b62c1 922 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 923 (set & TIOCM_DTR) ? "HIGH" :
924 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
925 (set & TIOCM_RTS) ? "HIGH" :
926 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 927 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 928 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
929 }
1da177e4
LT		 930 return rv;
931}
932
933
464cbb24
AC		 934static __u32 get_ftdi_divisor(struct tty_struct *tty,
935 struct usb_serial_port *port)
1da177e4
LT		 936{ /* get_ftdi_divisor */
937 struct ftdi_private *priv = usb_get_serial_port_data(port);
938 __u32 div_value = 0;
939 int div_okay = 1;
940 int baud;
941
942 /*
464cbb24
AC		 943 * The logic involved in setting the baudrate can be cleanly split into
944 * 3 steps.
1da177e4 945 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 946 * 2. If these are not enough, you can set any speed using alt_speed as
947 * follows:
1da177e4
LT		 948 * - set tty->termios->c_cflag speed to B38400
949 * - set your real speed in tty->alt_speed; it gets ignored when
950 * alt_speed==0, (or)
464cbb24
AC		 951 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
952 * follows:
953 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
954 * this just sets alt_speed to (HI: 57600, VHI: 115200,
955 * SHI: 230400, WARP: 460800)
1da177e4
LT		 956 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
957 * 3. You can also set baud rate by setting custom divisor as follows
958 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 959 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
960 * follows:
1da177e4
LT		 961 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
962 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 963 * ** Step 3 is done courtesy of code borrowed from serial.c
964 * I should really spend some time and separate + move this common
965 * code to serial.c, it is replicated in nearly every serial driver
966 * you see.
1da177e4
LT		 967 */
968
464cbb24
AC		 969 /* 1. Get the baud rate from the tty settings, this observes
970 alt_speed hack */
1da177e4 971
95da310e 972 baud = tty_get_baud_rate(tty);
441b62c1 973 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 974
464cbb24
AC		 975 /* 2. Observe async-compatible custom_divisor hack, update baudrate
976 if needed */
1da177e4
LT		 977
978 if (baud == 38400 &&
979 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
980 (priv->custom_divisor)) {
981 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 982 dbg("%s - custom divisor %d sets baud rate to %d",
983 __func__, priv->custom_divisor, baud);
1da177e4
LT		 984 }
985
986 /* 3. Convert baudrate to device-specific divisor */
987
464cbb24
AC		 988 if (!baud)
989 baud = 9600;
990 switch (priv->chip_type) {
1da177e4 991 case SIO: /* SIO chip */
464cbb24 992 switch (baud) {
1da177e4
LT		 993 case 300: div_value = ftdi_sio_b300; break;
994 case 600: div_value = ftdi_sio_b600; break;
995 case 1200: div_value = ftdi_sio_b1200; break;
996 case 2400: div_value = ftdi_sio_b2400; break;
997 case 4800: div_value = ftdi_sio_b4800; break;
998 case 9600: div_value = ftdi_sio_b9600; break;
999 case 19200: div_value = ftdi_sio_b19200; break;
1000 case 38400: div_value = ftdi_sio_b38400; break;
1001 case 57600: div_value = ftdi_sio_b57600; break;
1002 case 115200: div_value = ftdi_sio_b115200; break;
1003 } /* baud */
1004 if (div_value == 0) {
464cbb24
AC		 1005 dbg("%s - Baudrate (%d) requested is not supported",
1006 __func__, baud);
1da177e4 1007 div_value = ftdi_sio_b9600;
bd5e47cc 1008 baud = 9600;
1da177e4
LT		 1009 div_okay = 0;
1010 }
1011 break;
1012 case FT8U232AM: /* 8U232AM chip */
1013 if (baud <= 3000000) {
1014 div_value = ftdi_232am_baud_to_divisor(baud);
1015 } else {
464cbb24 1016 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 1017 baud = 9600;
1da177e4
LT		 1018 div_value = ftdi_232am_baud_to_divisor(9600);
1019 div_okay = 0;
1020 }
1021 break;
1022 case FT232BM: /* FT232BM chip */
1023 case FT2232C: /* FT2232C chip */
3b009c63 1024 case FT232RL:
1da177e4
LT		 1025 if (baud <= 3000000) {
1026 div_value = ftdi_232bm_baud_to_divisor(baud);
1027 } else {
464cbb24 1028 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 1029 div_value = ftdi_232bm_baud_to_divisor(9600);
1030 div_okay = 0;
669a6db1 1031 baud = 9600;
1da177e4
LT		 1032 }
1033 break;
094c2e6d
MA		 1034 case FT2232H: /* FT2232H chip */
1035 case FT4232H: /* FT4232H chip */
1036 if ((baud <= 12000000) & (baud >= 1200)) {
1037 div_value = ftdi_2232h_baud_to_divisor(baud);
1038 } else if (baud < 1200) {
1039 div_value = ftdi_232bm_baud_to_divisor(baud);
1040 } else {
1041 dbg("%s - Baud rate too high!", __func__);
1042 div_value = ftdi_232bm_baud_to_divisor(9600);
1043 div_okay = 0;
1044 baud = 9600;
1045 }
1046 break;
1da177e4
LT		 1047 } /* priv->chip_type */
1048
1049 if (div_okay) {
1050 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1051 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1052 ftdi_chip_name[priv->chip_type]);
1053 }
1054
95da310e 1055 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1056 return div_value;
1da177e4
LT		 1057}
1058
95da310e
AC		 1059static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1060{
1061 struct ftdi_private *priv = usb_get_serial_port_data(port);
1062 char *buf;
464cbb24 1063 __u16 urb_value;
95da310e
AC		 1064 __u16 urb_index;
1065 __u32 urb_index_value;
1066 int rv;
1067
1068 buf = kmalloc(1, GFP_NOIO);
1069 if (!buf)
1070 return -ENOMEM;
1071
1072 urb_index_value = get_ftdi_divisor(tty, port);
1073 urb_value = (__u16)urb_index_value;
1074 urb_index = (__u16)(urb_index_value >> 16);
1075 if (priv->interface) { /* FT2232C */
1076 urb_index = (__u16)((urb_index << 8) | priv->interface);
1077 }
1078
1079 rv = usb_control_msg(port->serial->dev,
1080 usb_sndctrlpipe(port->serial->dev, 0),
1081 FTDI_SIO_SET_BAUDRATE_REQUEST,
1082 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1083 urb_value, urb_index,
1084 buf, 0, WDR_SHORT_TIMEOUT);
1085
1086 kfree(buf);
1087 return rv;
1088}
1089
557aaa7f
AC		 1090static int write_latency_timer(struct usb_serial_port *port)
1091{
1092 struct ftdi_private *priv = usb_get_serial_port_data(port);
1093 struct usb_device *udev = port->serial->dev;
1094 char buf[1];
1095 int rv = 0;
1096 int l = priv->latency;
1097
1098 if (priv->flags & ASYNC_LOW_LATENCY)
1099 l = 1;
1100
1101 dbg("%s: setting latency timer = %i", __func__, l);
1102
1103 rv = usb_control_msg(udev,
1104 usb_sndctrlpipe(udev, 0),
1105 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1106 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1107 l, priv->interface,
1108 buf, 0, WDR_TIMEOUT);
95da310e 1109
557aaa7f
AC		 1110 if (rv < 0)
1111 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1112 return rv;
1113}
1114
1115static int read_latency_timer(struct usb_serial_port *port)
1116{
1117 struct ftdi_private *priv = usb_get_serial_port_data(port);
1118 struct usb_device *udev = port->serial->dev;
1119 unsigned short latency = 0;
1120 int rv = 0;
1121
1122
1123 dbg("%s", __func__);
1124
1125 rv = usb_control_msg(udev,
1126 usb_rcvctrlpipe(udev, 0),
1127 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1128 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1129 0, priv->interface,
1130 (char *) &latency, 1, WDR_TIMEOUT);
1131
1132 if (rv < 0) {
1133 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1134 return -EIO;
1135 }
1136 return latency;
1137}
1da177e4 1138
464cbb24
AC		 1139static int get_serial_info(struct usb_serial_port *port,
1140 struct serial_struct __user *retinfo)
1da177e4
LT		 1141{
1142 struct ftdi_private *priv = usb_get_serial_port_data(port);
1143 struct serial_struct tmp;
1144
1145 if (!retinfo)
1146 return -EFAULT;
1147 memset(&tmp, 0, sizeof(tmp));
1148 tmp.flags = priv->flags;
1149 tmp.baud_base = priv->baud_base;
1150 tmp.custom_divisor = priv->custom_divisor;
1151 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1152 return -EFAULT;
1153 return 0;
1154} /* get_serial_info */
1155
1156
95da310e 1157static int set_serial_info(struct tty_struct *tty,
464cbb24 1158 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1159{ /* set_serial_info */
1160 struct ftdi_private *priv = usb_get_serial_port_data(port);
1161 struct serial_struct new_serial;
1162 struct ftdi_private old_priv;
1163
1164 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1165 return -EFAULT;
6b447f04
AC		 1166
1167 lock_kernel();
464cbb24 1168 old_priv = *priv;
1da177e4
LT		 1169
1170 /* Do error checking and permission checking */
1171
1172 if (!capable(CAP_SYS_ADMIN)) {
1173 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1174 (priv->flags & ~ASYNC_USR_MASK))) {
1175 unlock_kernel();
1da177e4 1176 return -EPERM;
64905b48 1177 }
1da177e4
LT		 1178 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1179 (new_serial.flags & ASYNC_USR_MASK));
1180 priv->custom_divisor = new_serial.custom_divisor;
1181 goto check_and_exit;
1182 }
1183
1184 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1185 (new_serial.baud_base < 9600)) {
1186 unlock_kernel();
1da177e4 1187 return -EINVAL;
6b447f04 1188 }
1da177e4
LT		 1189
1190 /* Make the changes - these are privileged changes! */
1191
1192 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1193 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1194 priv->custom_divisor = new_serial.custom_divisor;
1195
95da310e 1196 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
557aaa7f 1197 write_latency_timer(port);
1da177e4
LT		 1198
1199check_and_exit:
1200 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1201 (priv->flags & ASYNC_SPD_MASK)) {
1202 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1203 tty->alt_speed = 57600;
1da177e4 1204 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1205 tty->alt_speed = 115200;
1da177e4 1206 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1207 tty->alt_speed = 230400;
1da177e4 1208 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1209 tty->alt_speed = 460800;
1da177e4 1210 else
95da310e 1211 tty->alt_speed = 0;
1da177e4
LT		 1212 }
1213 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1214 (priv->flags & ASYNC_SPD_MASK)) ||
1215 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1216 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1217 unlock_kernel();
95da310e 1218 change_speed(tty, port);
1da177e4 1219 }
6b447f04
AC		 1220 else
1221 unlock_kernel();
95da310e 1222 return 0;
1da177e4
LT		 1223
1224} /* set_serial_info */
1225
1226
8f977e42
IA		 1227/* Determine type of FTDI chip based on USB config and descriptor. */
1228static void ftdi_determine_type(struct usb_serial_port *port)
1229{
1230 struct ftdi_private *priv = usb_get_serial_port_data(port);
1231 struct usb_serial *serial = port->serial;
1232 struct usb_device *udev = serial->dev;
1233 unsigned version;
1234 unsigned interfaces;
1235
1236 /* Assume it is not the original SIO device for now. */
f5e09b7c 1237 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1238 priv->write_offset = 0;
1239
1240 version = le16_to_cpu(udev->descriptor.bcdDevice);
1241 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1242 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1243 version, interfaces);
1244 if (interfaces > 1) {
1245 int inter;
1246
094c2e6d
MA		 1247 /* Multiple interfaces.*/
1248 if (version == 0x0800) {
1249 priv->chip_type = FT4232H;
1250 /* Hi-speed - baud clock runs at 120MHz */
1251 priv->baud_base = 120000000 / 2;
1252 } else if (version == 0x0700) {
1253 priv->chip_type = FT2232H;
1254 /* Hi-speed - baud clock runs at 120MHz */
1255 priv->baud_base = 120000000 / 2;
1256 } else
1257 priv->chip_type = FT2232C;
1258
8f977e42
IA		 1259 /* Determine interface code. */
1260 inter = serial->interface->altsetting->desc.bInterfaceNumber;
094c2e6d
MA		 1261 if (inter == 0) {
1262 priv->interface = INTERFACE_A;
1263 } else if (inter == 1) {
1264 priv->interface = INTERFACE_B;
1265 } else if (inter == 2) {
1266 priv->interface = INTERFACE_C;
1267 } else if (inter == 3) {
1268 priv->interface = INTERFACE_D;
1269 }
8f977e42
IA		 1270 /* BM-type devices have a bug where bcdDevice gets set
1271 * to 0x200 when iSerialNumber is 0. */
1272 if (version < 0x500) {
1273 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1274 __func__);
8f977e42
IA		 1275 }
1276 } else if (version < 0x200) {
1277 /* Old device. Assume its the original SIO. */
1278 priv->chip_type = SIO;
1279 priv->baud_base = 12000000 / 16;
1280 priv->write_offset = 1;
1281 } else if (version < 0x400) {
1282 /* Assume its an FT8U232AM (or FT8U245AM) */
1283 /* (It might be a BM because of the iSerialNumber bug,
1284 * but it will still work as an AM device.) */
1285 priv->chip_type = FT8U232AM;
3b009c63 1286 } else if (version < 0x600) {
8f977e42
IA		 1287 /* Assume its an FT232BM (or FT245BM) */
1288 priv->chip_type = FT232BM;
3b009c63
DB		 1289 } else {
1290 /* Assume its an FT232R */
1291 priv->chip_type = FT232RL;
8f977e42 1292 }
c197a8db 1293 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1294}
1295
1296
895f28ba
MA		 1297/* Determine the maximum packet size for the device. This depends on the chip
1298 * type and the USB host capabilities. The value should be obtained from the
1299 * device descriptor as the chip will use the appropriate values for the host.*/
1300static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1301{
1302 struct ftdi_private *priv = usb_get_serial_port_data(port);
1303 struct usb_serial *serial = port->serial;
1304 struct usb_device *udev = serial->dev;
1305
1306 struct usb_interface *interface = serial->interface;
1307 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1308
1309 unsigned num_endpoints;
1310 int i = 0;
1311
1312 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1313 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1314
1315 /* NOTE: some customers have programmed FT232R/FT245R devices
1316 * with an endpoint size of 0 - not good. In this case, we
1317 * want to override the endpoint descriptor setting and use a
1318 * value of 64 for wMaxPacketSize */
1319 for (i = 0; i < num_endpoints; i++) {
1320 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1321 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1322 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1323 if (ep_desc->wMaxPacketSize == 0) {
1324 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1325 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1326 }
1327 }
1328
1329 /* set max packet size based on descriptor */
1330 priv->max_packet_size = ep_desc->wMaxPacketSize;
1331
1332 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1333}
1334
1335
1da177e4
LT		 1336/*
1337 * ***************************************************************************
1338 * Sysfs Attribute
1339 * ***************************************************************************
1340 */
1341
464cbb24
AC		 1342static ssize_t show_latency_timer(struct device *dev,
1343 struct device_attribute *attr, char *buf)
1da177e4
LT		 1344{
1345 struct usb_serial_port *port = to_usb_serial_port(dev);
1346 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1347 if (priv->flags & ASYNC_LOW_LATENCY)
1348 return sprintf(buf, "1\n");
1349 else
1350 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1351}
1352
557aaa7f 1353
1da177e4 1354/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1355static ssize_t store_latency_timer(struct device *dev,
1356 struct device_attribute *attr, const char *valbuf,
1357 size_t count)
1da177e4
LT		 1358{
1359 struct usb_serial_port *port = to_usb_serial_port(dev);
1360 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4
LT		 1361 int v = simple_strtoul(valbuf, NULL, 10);
1362 int rv = 0;
5c09d144 1363
557aaa7f
AC		 1364 priv->latency = v;
1365 rv = write_latency_timer(port);
1366 if (rv < 0)
1da177e4 1367 return -EIO;
1da177e4
LT		 1368 return count;
1369}
1370
1371/* Write an event character directly to the FTDI register. The ASCII
1372 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1373static ssize_t store_event_char(struct device *dev,
1374 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1375{
1376 struct usb_serial_port *port = to_usb_serial_port(dev);
1377 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1378 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1379 char buf[1];
1380 int v = simple_strtoul(valbuf, NULL, 10);
1381 int rv = 0;
5c09d144 1382
441b62c1 1383 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1384
1da177e4
LT		 1385 rv = usb_control_msg(udev,
1386 usb_sndctrlpipe(udev, 0),
1387 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1388 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1389 v, priv->interface,
1da177e4 1390 buf, 0, WDR_TIMEOUT);
5c09d144 1391
1da177e4
LT		 1392 if (rv < 0) {
1393 dbg("Unable to write event character: %i", rv);
1394 return -EIO;
1395 }
5c09d144 1396
1da177e4
LT		 1397 return count;
1398}
1399
464cbb24
AC		 1400static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1401 store_latency_timer);
1da177e4
LT		 1402static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1403
12bdbe03 1404static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1405{
12bdbe03 1406 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1407 int retval = 0;
1da177e4 1408
464cbb24 1409 dbg("%s", __func__);
13f4db9e 1410
1da177e4
LT		 1411 /* XXX I've no idea if the original SIO supports the event_char
1412 * sysfs parameter, so I'm playing it safe. */
1413 if (priv->chip_type != SIO) {
1414 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1415 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1416 if ((!retval) &&
97cd49eb
SM		 1417 (priv->chip_type == FT232BM ||
1418 priv->chip_type == FT2232C ||
094c2e6d
MA		 1419 priv->chip_type == FT232RL ||
1420 priv->chip_type == FT2232H ||
1421 priv->chip_type == FT4232H)) {
12bdbe03 1422 retval = device_create_file(&port->dev,
13f4db9e 1423 &dev_attr_latency_timer);
1da177e4
LT		 1424 }
1425 }
13f4db9e 1426 return retval;
1da177e4
LT		 1427}
1428
12bdbe03 1429static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1430{
12bdbe03 1431 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1432
464cbb24 1433 dbg("%s", __func__);
1da177e4 1434
1da177e4
LT		 1435 /* XXX see create_sysfs_attrs */
1436 if (priv->chip_type != SIO) {
12bdbe03 1437 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1438 if (priv->chip_type == FT232BM ||
1439 priv->chip_type == FT2232C ||
094c2e6d
MA		 1440 priv->chip_type == FT232RL ||
1441 priv->chip_type == FT2232H ||
1442 priv->chip_type == FT4232H) {
12bdbe03 1443 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1444 }
1445 }
5c09d144 1446
1da177e4
LT		 1447}
1448
1449/*
1450 * ***************************************************************************
1451 * FTDI driver specific functions
1452 * ***************************************************************************
1453 */
1454
8f977e42 1455/* Probe function to check for special devices */
464cbb24
AC		 1456static int ftdi_sio_probe(struct usb_serial *serial,
1457 const struct usb_device_id *id)
8f977e42 1458{
464cbb24
AC		 1459 struct ftdi_sio_quirk *quirk =
1460 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1461
1462 if (quirk && quirk->probe) {
1463 int ret = quirk->probe(serial);
1464 if (ret != 0)
1465 return ret;
1466 }
1467
8f977e42
IA		 1468 usb_set_serial_data(serial, (void *)id->driver_info);
1469
fa91d43b 1470 return 0;
8f977e42
IA		 1471}
1472
12bdbe03 1473static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1474{
1da177e4 1475 struct ftdi_private *priv;
0ffbbe25
ON		 1476 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1477
13f4db9e 1478
464cbb24 1479 dbg("%s", __func__);
1da177e4 1480
80b6ca48 1481 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1482 if (!priv) {
194343d9 1483 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1484 sizeof(struct ftdi_private));
1da177e4
LT		 1485 return -ENOMEM;
1486 }
1da177e4 1487
c45d6320 1488 kref_init(&priv->kref);
1da177e4 1489 spin_lock_init(&priv->rx_lock);
22465400 1490 spin_lock_init(&priv->tx_lock);
464cbb24 1491 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1492 /* This will push the characters through immediately rather
1493 than queue a task to deliver them */
1494 priv->flags = ASYNC_LOW_LATENCY;
1495
0ffbbe25
ON		 1496 if (quirk && quirk->port_probe)
1497 quirk->port_probe(priv);
1498
1da177e4 1499 /* Increase the size of read buffers */
1bc3c9e1 1500 kfree(port->bulk_in_buffer);
464cbb24 1501 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1502 if (!port->bulk_in_buffer) {
464cbb24 1503 kfree(priv);
1da177e4
LT		 1504 return -ENOMEM;
1505 }
1506 if (port->read_urb) {
1507 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1508 port->read_urb->transfer_buffer_length = BUFSZ;
1509 }
1510
c4028958
DH		 1511 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1512 priv->port = port;
76854cea 1513
1da177e4
LT		 1514 /* Free port's existing write urb and transfer buffer. */
1515 if (port->write_urb) {
464cbb24 1516 usb_free_urb(port->write_urb);
1da177e4
LT		 1517 port->write_urb = NULL;
1518 }
1bc3c9e1
JJ		 1519 kfree(port->bulk_out_buffer);
1520 port->bulk_out_buffer = NULL;
1da177e4 1521
12bdbe03 1522 usb_set_serial_port_data(port, priv);
1da177e4 1523
464cbb24 1524 ftdi_determine_type(port);
895f28ba 1525 ftdi_set_max_packet_size(port);
557aaa7f 1526 read_latency_timer(port);
12bdbe03
JR		 1527 create_sysfs_attrs(port);
1528 return 0;
1529}
1da177e4 1530
8f977e42
IA		 1531/* Setup for the USB-UIRT device, which requires hardwired
1532 * baudrate (38400 gets mapped to 312500) */
1da177e4 1533/* Called from usbserial:serial_probe */
464cbb24 1534static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1535{
464cbb24 1536 dbg("%s", __func__);
1da177e4 1537
1da177e4
LT		 1538 priv->flags |= ASYNC_SPD_CUST;
1539 priv->custom_divisor = 77;
669a6db1 1540 priv->force_baud = 38400;
8f977e42 1541} /* ftdi_USB_UIRT_setup */
1da177e4 1542
8f977e42
IA		 1543/* Setup for the HE-TIRA1 device, which requires hardwired
1544 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1545
1546static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1547{
464cbb24 1548 dbg("%s", __func__);
1da177e4 1549
1da177e4
LT		 1550 priv->flags |= ASYNC_SPD_CUST;
1551 priv->custom_divisor = 240;
669a6db1 1552 priv->force_baud = 38400;
1da177e4 1553 priv->force_rtscts = 1;
8f977e42 1554} /* ftdi_HE_TIRA1_setup */
1da177e4 1555
fa91d43b 1556/*
20734345
HW		 1557 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1558 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1559 * userspace using openocd.
fa91d43b 1560 */
20734345 1561static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1562{
1563 struct usb_device *udev = serial->dev;
1564 struct usb_interface *interface = serial->interface;
1565
464cbb24 1566 dbg("%s", __func__);
fa91d43b
TL		 1567
1568 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1569 dev_info(&udev->dev,
1570 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1571 return -ENODEV;
1572 }
1573
1574 return 0;
1575}
1da177e4 1576
546d7eec
KV		 1577/*
1578 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1579 * We have to correct it if we want to read from it.
1580 */
1581static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1582{
1583 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1584 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1585
1586 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1587 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1588 dev_info(&serial->dev->dev,
1589 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1590 }
1591
1592 return 0;
1593}
1594
c45d6320
AS		 1595static void ftdi_sio_priv_release(struct kref *k)
1596{
1597 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1598
1599 kfree(priv);
1600}
1601
12bdbe03
JR		 1602static int ftdi_sio_port_remove(struct usb_serial_port *port)
1603{
1da177e4
LT		 1604 struct ftdi_private *priv = usb_get_serial_port_data(port);
1605
441b62c1 1606 dbg("%s", __func__);
1da177e4 1607
12bdbe03 1608 remove_sysfs_attrs(port);
5c09d144 1609
80193195 1610 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1611
12bdbe03
JR		 1612 return 0;
1613}
1da177e4 1614
95da310e
AC		 1615static int ftdi_open(struct tty_struct *tty,
1616 struct usb_serial_port *port, struct file *filp)
1da177e4 1617{ /* ftdi_open */
1da177e4
LT		 1618 struct usb_device *dev = port->serial->dev;
1619 struct ftdi_private *priv = usb_get_serial_port_data(port);
1620 unsigned long flags;
5c09d144 1621
1da177e4
LT		 1622 int result = 0;
1623 char buf[1]; /* Needed for the usb_control_msg I think */
1624
441b62c1 1625 dbg("%s", __func__);
1da177e4 1626
22465400
IA		 1627 spin_lock_irqsave(&priv->tx_lock, flags);
1628 priv->tx_bytes = 0;
1629 spin_unlock_irqrestore(&priv->tx_lock, flags);
1630 spin_lock_irqsave(&priv->rx_lock, flags);
1631 priv->rx_bytes = 0;
1632 spin_unlock_irqrestore(&priv->rx_lock, flags);
1633
95da310e
AC		 1634 if (tty)
1635 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4 1636
557aaa7f
AC		 1637 write_latency_timer(port);
1638
1da177e4
LT		 1639 /* No error checking for this (will get errors later anyway) */
1640 /* See ftdi_sio.h for description of what is reset */
1641 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1642 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1643 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1644 priv->interface, buf, 0, WDR_TIMEOUT);
1645
1646 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1647 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1648 This is same behaviour as serial.c/rs_open() - Kuba */
1649
1650 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1651 if (tty)
1652 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1653
1da177e4
LT		 1654 /* Not throttled */
1655 spin_lock_irqsave(&priv->rx_lock, flags);
1656 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1657 spin_unlock_irqrestore(&priv->rx_lock, flags);
1658
1659 /* Start reading from the device */
76854cea 1660 priv->rx_processed = 0;
1da177e4 1661 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1662 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1663 port->read_urb->transfer_buffer,
1664 port->read_urb->transfer_buffer_length,
1665 ftdi_read_bulk_callback, port);
1da177e4
LT		 1666 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1667 if (result)
194343d9
GKH		 1668 dev_err(&port->dev,
1669 "%s - failed submitting read urb, error %d\n",
1670 __func__, result);
c45d6320
AS		 1671 else
1672 kref_get(&priv->kref);
1da177e4
LT		 1673
1674 return result;
1675} /* ftdi_open */
1676
1677
335f8514
AC		 1678static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1679{
1680 struct ftdi_private *priv = usb_get_serial_port_data(port);
1681 char buf[1];
1682
1683 mutex_lock(&port->serial->disc_mutex);
1684 if (!port->serial->disconnected) {
1685 /* Disable flow control */
1686 if (!on && usb_control_msg(port->serial->dev,
1687 usb_sndctrlpipe(port->serial->dev, 0),
1688 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1689 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1690 0, priv->interface, buf, 0,
1691 WDR_TIMEOUT) < 0) {
1692 dev_err(&port->dev, "error from flowcontrol urb\n");
1693 }
1694 /* drop RTS and DTR */
1695 if (on)
1696 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1697 else
1698 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1699 }
1700 mutex_unlock(&port->serial->disc_mutex);
1701}
1da177e4 1702
5c09d144 1703/*
1da177e4
LT		 1704 * usbserial:__serial_close only calls ftdi_close if the point is open
1705 *
1706 * This only gets called when it is the last close
5c09d144
DB		 1707 *
1708 *
1da177e4
LT		 1709 */
1710
335f8514 1711static void ftdi_close(struct usb_serial_port *port)
1da177e4 1712{ /* ftdi_close */
1da177e4 1713 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1714
441b62c1 1715 dbg("%s", __func__);
1da177e4 1716
76854cea
IA		 1717
1718 /* cancel any scheduled reading */
c45d6320 1719 cancel_delayed_work_sync(&priv->rx_work);
5c09d144 1720
1da177e4 1721 /* shutdown our bulk read */
794c944e 1722 usb_kill_urb(port->read_urb);
c45d6320 1723 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1724} /* ftdi_close */
1725
1726
5c09d144 1727
1da177e4
LT		 1728/* The SIO requires the first byte to have:
1729 * B0 1
1730 * B1 0
1731 * B2..7 length of message excluding byte 0
1732 *
1733 * The new devices do not require this byte
1734 */
95da310e 1735static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1736 const unsigned char *buf, int count)
1737{ /* ftdi_write */
1738 struct ftdi_private *priv = usb_get_serial_port_data(port);
1739 struct urb *urb;
1740 unsigned char *buffer;
1741 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1742 int status;
1743 int transfer_size;
22465400 1744 unsigned long flags;
1da177e4 1745
441b62c1 1746 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1747
1748 if (count == 0) {
1749 dbg("write request of 0 bytes");
1750 return 0;
1751 }
22465400
IA		 1752 spin_lock_irqsave(&priv->tx_lock, flags);
1753 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1754 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1755 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1756 return 0;
1757 }
62127a58 1758 priv->tx_outstanding_urbs++;
22465400 1759 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1760
1da177e4 1761 data_offset = priv->write_offset;
464cbb24 1762 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1763
1764 /* Determine total transfer size */
1765 transfer_size = count;
1766 if (data_offset > 0) {
1767 /* Original sio needs control bytes too... */
1768 transfer_size += (data_offset *
895f28ba
MA		 1769 ((count + (priv->max_packet_size - 1 - data_offset)) /
1770 (priv->max_packet_size - data_offset)));
1da177e4
LT		 1771 }
1772
464cbb24 1773 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1774 if (!buffer) {
194343d9
GKH		 1775 dev_err(&port->dev,
1776 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1777 count = -ENOMEM;
1778 goto error_no_buffer;
1da177e4
LT		 1779 }
1780
1781 urb = usb_alloc_urb(0, GFP_ATOMIC);
1782 if (!urb) {
194343d9 1783 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1784 count = -ENOMEM;
1785 goto error_no_urb;
1da177e4
LT		 1786 }
1787
1788 /* Copy data */
1789 if (data_offset > 0) {
464cbb24
AC		 1790 /* Original sio requires control byte at start of
1791 each packet. */
895f28ba 1792 int user_pktsz = priv->max_packet_size - data_offset;
1da177e4
LT		 1793 int todo = count;
1794 unsigned char *first_byte = buffer;
1795 const unsigned char *current_position = buf;
1796
1797 while (todo > 0) {
464cbb24 1798 if (user_pktsz > todo)
1da177e4 1799 user_pktsz = todo;
1da177e4 1800 /* Write the control byte at the front of the packet*/
5c09d144 1801 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1802 /* Copy data for packet */
464cbb24 1803 memcpy(first_byte + data_offset,
1da177e4
LT		 1804 current_position, user_pktsz);
1805 first_byte += user_pktsz + data_offset;
1806 current_position += user_pktsz;
1807 todo -= user_pktsz;
1808 }
1809 } else {
1810 /* No control byte required. */
1811 /* Copy in the data to send */
464cbb24 1812 memcpy(buffer, buf, count);
1da177e4
LT		 1813 }
1814
464cbb24
AC		 1815 usb_serial_debug_data(debug, &port->dev, __func__,
1816 transfer_size, buffer);
1da177e4
LT		 1817
1818 /* fill the buffer and send it */
5c09d144 1819 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1820 usb_sndbulkpipe(port->serial->dev,
1821 port->bulk_out_endpointAddress),
1822 buffer, transfer_size,
1823 ftdi_write_bulk_callback, port);
1da177e4
LT		 1824
1825 status = usb_submit_urb(urb, GFP_ATOMIC);
1826 if (status) {
194343d9
GKH		 1827 dev_err(&port->dev,
1828 "%s - failed submitting write urb, error %d\n",
1829 __func__, status);
1da177e4 1830 count = status;
62127a58 1831 goto error;
22465400
IA		 1832 } else {
1833 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1834 priv->tx_outstanding_bytes += count;
1835 priv->tx_bytes += count;
1836 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1837 }
1838
1839 /* we are done with this urb, so let the host driver
1840 * really free it when it is finished with it */
62127a58 1841 usb_free_urb(urb);
1da177e4 1842
441b62c1 1843 dbg("%s write returning: %d", __func__, count);
1da177e4 1844 return count;
62127a58
ON		 1845error:
1846 usb_free_urb(urb);
1847error_no_urb:
464cbb24 1848 kfree(buffer);
62127a58
ON		 1849error_no_buffer:
1850 spin_lock_irqsave(&priv->tx_lock, flags);
1851 priv->tx_outstanding_urbs--;
1852 spin_unlock_irqrestore(&priv->tx_lock, flags);
1853 return count;
1da177e4
LT		 1854} /* ftdi_write */
1855
1856
1857/* This function may get called when the device is closed */
1858
464cbb24 1859static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1860{
22465400 1861 unsigned long flags;
cdc97792 1862 struct usb_serial_port *port = urb->context;
22465400
IA		 1863 struct ftdi_private *priv;
1864 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1865 unsigned long countback;
0fb0aa18 1866 int status = urb->status;
1da177e4
LT		 1867
1868 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1869 kfree(urb->transfer_buffer);
1da177e4 1870
441b62c1 1871 dbg("%s - port %d", __func__, port->number);
5c09d144 1872
22465400
IA		 1873 priv = usb_get_serial_port_data(port);
1874 if (!priv) {
441b62c1 1875 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1876 return;
1877 }
1878 /* account for transferred data */
1879 countback = urb->actual_length;
1880 data_offset = priv->write_offset;
1881 if (data_offset > 0) {
1882 /* Subtract the control bytes */
895f28ba 1883 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
22465400
IA		 1884 }
1885 spin_lock_irqsave(&priv->tx_lock, flags);
1886 --priv->tx_outstanding_urbs;
1887 priv->tx_outstanding_bytes -= countback;
1888 spin_unlock_irqrestore(&priv->tx_lock, flags);
1889
87c1edd2
JW		 1890 if (status) {
1891 dbg("nonzero write bulk status received: %d", status);
1892 return;
1893 }
1894
cf2c7481 1895 usb_serial_port_softint(port);
1da177e4
LT		 1896} /* ftdi_write_bulk_callback */
1897
1898
95da310e 1899static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1900{
95da310e 1901 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1902 struct ftdi_private *priv = usb_get_serial_port_data(port);
1903 int room;
1904 unsigned long flags;
1905
441b62c1 1906 dbg("%s - port %d", __func__, port->number);
1da177e4 1907
22465400
IA		 1908 spin_lock_irqsave(&priv->tx_lock, flags);
1909 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1910 /*
1911 * We really can take anything the user throws at us
1912 * but let's pick a nice big number to tell the tty
1913 * layer that we have lots of free space
1914 */
1915 room = 2048;
1916 } else {
1917 room = 0;
1918 }
1919 spin_unlock_irqrestore(&priv->tx_lock, flags);
1920 return room;
95da310e 1921}
1da177e4 1922
95da310e
AC		 1923static int ftdi_chars_in_buffer(struct tty_struct *tty)
1924{
1925 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1926 struct ftdi_private *priv = usb_get_serial_port_data(port);
1927 int buffered;
1928 unsigned long flags;
1929
441b62c1 1930 dbg("%s - port %d", __func__, port->number);
1da177e4 1931
22465400
IA		 1932 spin_lock_irqsave(&priv->tx_lock, flags);
1933 buffered = (int)priv->tx_outstanding_bytes;
1934 spin_unlock_irqrestore(&priv->tx_lock, flags);
1935 if (buffered < 0) {
194343d9
GKH		 1936 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1937 __func__);
22465400
IA		 1938 buffered = 0;
1939 }
1940 return buffered;
95da310e 1941}
1da177e4 1942
95da310e
AC		 1943static void ftdi_read_bulk_callback(struct urb *urb)
1944{
cdc97792 1945 struct usb_serial_port *port = urb->context;
1da177e4
LT		 1946 struct tty_struct *tty;
1947 struct ftdi_private *priv;
22465400
IA		 1948 unsigned long countread;
1949 unsigned long flags;
0fb0aa18 1950 int status = urb->status;
1da177e4
LT		 1951
1952 if (urb->number_of_packets > 0) {
194343d9
GKH		 1953 dev_err(&port->dev, "%s transfer_buffer_length %d "
1954 "actual_length %d number of packets %d\n", __func__,
1955 urb->transfer_buffer_length,
1956 urb->actual_length, urb->number_of_packets);
1957 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1958 urb->transfer_flags);
1da177e4
LT		 1959 }
1960
441b62c1 1961 dbg("%s - port %d", __func__, port->number);
1da177e4 1962
95da310e 1963 if (port->port.count <= 0)
1da177e4
LT		 1964 return;
1965
4a90f09b 1966 tty = tty_port_tty_get(&port->port);
1da177e4 1967 if (!tty) {
464cbb24 1968 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1969 return;
1970 }
1971
1972 priv = usb_get_serial_port_data(port);
1973 if (!priv) {
441b62c1 1974 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1975 goto out;
1da177e4
LT		 1976 }
1977
464cbb24 1978 if (urb != port->read_urb)
194343d9 1979 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1da177e4 1980
0fb0aa18 1981 if (status) {
464cbb24
AC		 1982 /* This will happen at close every time so it is a dbg not an
1983 err */
1984 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
4a90f09b 1985 goto out;
1da177e4
LT		 1986 }
1987
22465400
IA		 1988 /* count data bytes, but not status bytes */
1989 countread = urb->actual_length;
895f28ba 1990 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size);
22465400
IA		 1991 spin_lock_irqsave(&priv->rx_lock, flags);
1992 priv->rx_bytes += countread;
1993 spin_unlock_irqrestore(&priv->rx_lock, flags);
1994
c4028958 1995 ftdi_process_read(&priv->rx_work.work);
4a90f09b
AC		 1996out:
1997 tty_kref_put(tty);
1da177e4
LT		 1998} /* ftdi_read_bulk_callback */
1999
2000
464cbb24 2001static void ftdi_process_read(struct work_struct *work)
1da177e4 2002{ /* ftdi_process_read */
c4028958
DH		 2003 struct ftdi_private *priv =
2004 container_of(work, struct ftdi_private, rx_work.work);
2005 struct usb_serial_port *port = priv->port;
1da177e4
LT		 2006 struct urb *urb;
2007 struct tty_struct *tty;
1da177e4 2008 char error_flag;
5c09d144 2009 unsigned char *data;
1da177e4
LT		 2010
2011 int i;
2012 int result;
2013 int need_flip;
2014 int packet_offset;
76854cea 2015 unsigned long flags;
1da177e4 2016
441b62c1 2017 dbg("%s - port %d", __func__, port->number);
1da177e4 2018
95da310e 2019 if (port->port.count <= 0)
1da177e4
LT		 2020 return;
2021
4a90f09b 2022 tty = tty_port_tty_get(&port->port);
1da177e4 2023 if (!tty) {
464cbb24 2024 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 2025 return;
2026 }
2027
2028 priv = usb_get_serial_port_data(port);
2029 if (!priv) {
441b62c1 2030 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 2031 goto out;
1da177e4
LT		 2032 }
2033
2034 urb = port->read_urb;
2035 if (!urb) {
441b62c1 2036 dbg("%s - bad read_urb pointer - exiting", __func__);
4a90f09b 2037 goto out;
1da177e4
LT		 2038 }
2039
2040 data = urb->transfer_buffer;
2041
76854cea 2042 if (priv->rx_processed) {
441b62c1 2043 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 2044 priv->rx_processed,
2045 urb->actual_length - priv->rx_processed);
1da177e4 2046 } else {
76854cea 2047 /* The first two bytes of every read packet are status */
464cbb24
AC		 2048 if (urb->actual_length > 2)
2049 usb_serial_debug_data(debug, &port->dev, __func__,
2050 urb->actual_length, data);
2051 else
2052 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 2053 }
1da177e4
LT		 2054
2055
2056 /* TO DO -- check for hung up line and handle appropriately: */
2057 /* send hangup */
2058 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
2059 /* if CD is dropped and the line is not CLOCAL then we should hangup */
2060
2061 need_flip = 0;
464cbb24 2062 for (packet_offset = priv->rx_processed;
895f28ba 2063 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) {
76854cea
IA		 2064 int length;
2065
464cbb24
AC		 2066 /* Compare new line status to the old one, signal if different/
2067 N.B. packet may be processed more than once, but differences
2068 are only processed once. */
00185a60
JL		 2069 char new_status = data[packet_offset + 0] &
2070 FTDI_STATUS_B0_MASK;
2071 if (new_status != priv->prev_status) {
2072 priv->diff_status |=
2073 new_status ^ priv->prev_status;
2074 wake_up_interruptible(&priv->delta_msr_wait);
2075 priv->prev_status = new_status;
1da177e4
LT		 2076 }
2077
895f28ba 2078 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2;
76854cea 2079 if (length < 0) {
194343d9
GKH		 2080 dev_err(&port->dev, "%s - bad packet length: %d\n",
2081 __func__, length+2);
76854cea
IA		 2082 length = 0;
2083 }
2084
76854cea 2085 if (priv->rx_flags & THROTTLED) {
441b62c1 2086 dbg("%s - throttled", __func__);
76854cea
IA		 2087 break;
2088 }
33f0f88f 2089 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 2090 /* break out & wait for throttling/unthrottling to
2091 happen */
441b62c1 2092 dbg("%s - receive room low", __func__);
76854cea
IA		 2093 break;
2094 }
2095
1da177e4
LT		 2096 /* Handle errors and break */
2097 error_flag = TTY_NORMAL;
464cbb24
AC		 2098 /* Although the device uses a bitmask and hence can have
2099 multiple errors on a packet - the order here sets the
2100 priority the error is returned to the tty layer */
1da177e4 2101
464cbb24 2102 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 2103 error_flag = TTY_OVERRUN;
2104 dbg("OVERRRUN error");
2105 }
464cbb24 2106 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 2107 error_flag = TTY_BREAK;
2108 dbg("BREAK received");
72fda3ca 2109 usb_serial_handle_break(port);
1da177e4 2110 }
464cbb24 2111 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 2112 error_flag = TTY_PARITY;
2113 dbg("PARITY error");
2114 }
464cbb24 2115 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 2116 error_flag = TTY_FRAME;
2117 dbg("FRAMING error");
2118 }
76854cea
IA		 2119 if (length > 0) {
2120 for (i = 2; i < length+2; i++) {
5c09d144 2121 /* Note that the error flag is duplicated for
1da177e4
LT		 2122 every character received since we don't know
2123 which character it applied to */
72fda3ca
JW		 2124 if (!usb_serial_handle_sysrq_char(port,
2125 data[packet_offset + i]))
2126 tty_insert_flip_char(tty,
2127 data[packet_offset + i],
2128 error_flag);
1da177e4
LT		 2129 }
2130 need_flip = 1;
2131 }
2132
2133#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2134 /* if a parity error is detected you get status packets forever
2135 until a character is sent without a parity error.
464cbb24
AC		 2136 This doesn't work well since the application receives a
2137 never ending stream of bad data - even though new data
2138 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 2139 However - this might make sense for framing errors and so on
1da177e4
LT		 2140 so I am leaving the code in for now.
2141 */
2142 else {
464cbb24 2143 if (error_flag != TTY_NORMAL) {
1da177e4 2144 dbg("error_flag is not normal");
464cbb24
AC		 2145 /* In this case it is just status - if that is
2146 an error send a bad character */
2147 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 2148 tty_flip_buffer_push(tty);
1da177e4
LT		 2149 tty_insert_flip_char(tty, 0xff, error_flag);
2150 need_flip = 1;
2151 }
2152 }
2153#endif
2154 } /* "for(packet_offset=0..." */
2155
2156 /* Low latency */
464cbb24 2157 if (need_flip)
1da177e4 2158 tty_flip_buffer_push(tty);
1da177e4 2159
76854cea
IA		 2160 if (packet_offset < urb->actual_length) {
2161 /* not completely processed - record progress */
2162 priv->rx_processed = packet_offset;
2163 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2164 __func__, packet_offset,
76854cea
IA		 2165 urb->actual_length - packet_offset);
2166 /* check if we were throttled while processing */
2167 spin_lock_irqsave(&priv->rx_lock, flags);
2168 if (priv->rx_flags & THROTTLED) {
2169 priv->rx_flags |= ACTUALLY_THROTTLED;
2170 spin_unlock_irqrestore(&priv->rx_lock, flags);
2171 dbg("%s - deferring remainder until unthrottled",
441b62c1 2172 __func__);
a9fec710 2173 goto out;
76854cea
IA		 2174 }
2175 spin_unlock_irqrestore(&priv->rx_lock, flags);
2176 /* if the port is closed stop trying to read */
464cbb24 2177 if (port->port.count > 0)
76854cea
IA		 2178 /* delay processing of remainder */
2179 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2180 else
441b62c1 2181 dbg("%s - port is closed", __func__);
4a90f09b 2182 goto out;
76854cea
IA		 2183 }
2184
2185 /* urb is completely processed */
2186 priv->rx_processed = 0;
2187
1da177e4 2188 /* if the port is closed stop trying to read */
464cbb24 2189 if (port->port.count > 0) {
1da177e4 2190 /* Continue trying to always read */
5c09d144 2191 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2192 usb_rcvbulkpipe(port->serial->dev,
2193 port->bulk_in_endpointAddress),
2194 port->read_urb->transfer_buffer,
2195 port->read_urb->transfer_buffer_length,
2196 ftdi_read_bulk_callback, port);
1da177e4
LT		 2197
2198 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2199 if (result)
194343d9
GKH		 2200 dev_err(&port->dev,
2201 "%s - failed resubmitting read urb, error %d\n",
2202 __func__, result);
1da177e4 2203 }
4a90f09b
AC		 2204out:
2205 tty_kref_put(tty);
1da177e4
LT		 2206} /* ftdi_process_read */
2207
2208
95da310e 2209static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2210{
95da310e 2211 struct usb_serial_port *port = tty->driver_data;
1da177e4 2212 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2213 __u16 urb_value = 0;
1da177e4 2214 char buf[1];
5c09d144 2215
1da177e4
LT		 2216 /* break_state = -1 to turn on break, and 0 to turn off break */
2217 /* see drivers/char/tty_io.c to see it used */
2218 /* last_set_data_urb_value NEVER has the break bit set in it */
2219
464cbb24 2220 if (break_state)
1da177e4 2221 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2222 else
5c09d144 2223 urb_value = priv->last_set_data_urb_value;
5c09d144 2224
464cbb24
AC		 2225 if (usb_control_msg(port->serial->dev,
2226 usb_sndctrlpipe(port->serial->dev, 0),
2227 FTDI_SIO_SET_DATA_REQUEST,
2228 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2229 urb_value , priv->interface,
2230 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2231 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2232 "(state was %d)\n", __func__, break_state);
5c09d144 2233 }
1da177e4 2234
464cbb24
AC		 2235 dbg("%s break state is %d - urb is %d", __func__,
2236 break_state, urb_value);
5c09d144 2237
1da177e4
LT		 2238}
2239
2240
2241/* old_termios contains the original termios settings and tty->termios contains
2242 * the new setting to be used
2243 * WARNING: set_termios calls this with old_termios in kernel space
2244 */
2245
95da310e
AC		 2246static void ftdi_set_termios(struct tty_struct *tty,
2247 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2248{ /* ftdi_termios */
2249 struct usb_device *dev = port->serial->dev;
1da177e4 2250 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2251 struct ktermios *termios = tty->termios;
669a6db1 2252 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2253 __u16 urb_value; /* will hold the new flags */
2254 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2255
464cbb24 2256 /* Added for xon/xoff support */
669a6db1 2257 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2258 unsigned char vstop;
2259 unsigned char vstart;
5c09d144 2260
441b62c1 2261 dbg("%s", __func__);
1da177e4 2262
464cbb24
AC		 2263 /* Force baud rate if this device requires it, unless it is set to
2264 B0. */
669a6db1 2265 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2266 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2267 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2268 priv->force_baud);
1da177e4
LT		 2269 }
2270
2271 /* Force RTS-CTS if this device requires it. */
2272 if (priv->force_rtscts) {
441b62c1 2273 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2274 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2275 }
2276
669a6db1 2277 cflag = termios->c_cflag;
1da177e4 2278
5c09d144
DB		 2279 /* FIXME -For this cut I don't care if the line is really changing or
2280 not - so just do the change regardless - should be able to
1da177e4 2281 compare old_termios and tty->termios */
5c09d144 2282 /* NOTE These routines can get interrupted by
464cbb24
AC		 2283 ftdi_sio_read_bulk_callback - need to examine what this means -
2284 don't see any problems yet */
5c09d144 2285
1da177e4 2286 /* Set number of data bits, parity, stop bits */
5c09d144 2287
669a6db1
AC		 2288 termios->c_cflag &= ~CMSPAR;
2289
1da177e4
LT		 2290 urb_value = 0;
2291 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2292 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2293 urb_value |= (cflag & PARENB ?
2294 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2295 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2296 FTDI_SIO_SET_DATA_PARITY_NONE);
2297 if (cflag & CSIZE) {
2298 switch (cflag & CSIZE) {
2299 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2300 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2301 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2302 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2303 default:
194343d9 2304 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2305 }
2306 }
2307
464cbb24
AC		 2308 /* This is needed by the break command since it uses the same command
2309 - but is or'ed with this value */
1da177e4 2310 priv->last_set_data_urb_value = urb_value;
5c09d144 2311
1da177e4 2312 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2313 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2314 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2315 urb_value , priv->interface,
279e1545 2316 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2317 dev_err(&port->dev, "%s FAILED to set "
2318 "databits/stopbits/parity\n", __func__);
5c09d144 2319 }
1da177e4
LT		 2320
2321 /* Now do the baudrate */
464cbb24 2322 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2323 /* Disable flow control */
2324 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2325 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2326 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2327 0, priv->interface,
1da177e4 2328 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2329 dev_err(&port->dev,
2330 "%s error from disable flowcontrol urb\n",
2331 __func__);
5c09d144 2332 }
1da177e4 2333 /* Drop RTS and DTR */
74ede0ff 2334 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2335 } else {
2336 /* set the baudrate determined before */
464cbb24 2337 if (change_speed(tty, port))
194343d9
GKH		 2338 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2339 __func__);
72a755fc 2340 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2341 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2342 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2343 }
2344
2345 /* Set flow control */
2346 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2347 if (cflag & CRTSCTS) {
441b62c1 2348 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2349 if (usb_control_msg(dev,
1da177e4 2350 usb_sndctrlpipe(dev, 0),
5c09d144 2351 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2352 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2353 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2354 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2355 dev_err(&port->dev,
2356 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2357 }
2358
2359 } else {
1da177e4
LT		 2360 /*
2361 * Xon/Xoff code
2362 *
464cbb24
AC		 2363 * Check the IXOFF status in the iflag component of the
2364 * termios structure. If IXOFF is not set, the pre-xon/xoff
2365 * code is executed.
2366 */
1da177e4 2367 if (iflag & IXOFF) {
464cbb24
AC		 2368 dbg("%s request to enable xonxoff iflag=%04x",
2369 __func__, iflag);
2370 /* Try to enable the XON/XOFF on the ftdi_sio
2371 * Set the vstart and vstop -- could have been done up
2372 * above where a lot of other dereferencing is done but
2373 * that would be very inefficient as vstart and vstop
2374 * are not always needed.
2375 */
669a6db1
AC		 2376 vstart = termios->c_cc[VSTART];
2377 vstop = termios->c_cc[VSTOP];
464cbb24 2378 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2379
2380 if (usb_control_msg(dev,
2381 usb_sndctrlpipe(dev, 0),
2382 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2383 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2384 urb_value , (FTDI_SIO_XON_XOFF_HS
2385 | priv->interface),
2386 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2387 dev_err(&port->dev, "urb failed to set to "
2388 "xon/xoff flow control\n");
1da177e4
LT		 2389 }
2390 } else {
464cbb24
AC		 2391 /* else clause to only run if cflag ! CRTSCTS and iflag
2392 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2393 * stack - not by device */
441b62c1 2394 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2395 if (usb_control_msg(dev,
1da177e4 2396 usb_sndctrlpipe(dev, 0),
5c09d144 2397 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2398 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2399 0, priv->interface,
1da177e4 2400 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2401 dev_err(&port->dev,
2402 "urb failed to clear flow control\n");
5c09d144 2403 }
1da177e4 2404 }
5c09d144 2405
1da177e4
LT		 2406 }
2407 return;
95da310e 2408}
1da177e4 2409
95da310e 2410static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2411{
95da310e 2412 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2413 struct ftdi_private *priv = usb_get_serial_port_data(port);
2414 unsigned char buf[2];
2415 int ret;
2416
441b62c1 2417 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2418 switch (priv->chip_type) {
2419 case SIO:
2420 /* Request the status from the device */
464cbb24
AC		 2421 ret = usb_control_msg(port->serial->dev,
2422 usb_rcvctrlpipe(port->serial->dev, 0),
2423 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2424 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2425 0, 0,
2426 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2427 if (ret < 0)
464cbb24 2428 return ret;
1da177e4
LT		 2429 break;
2430 case FT8U232AM:
2431 case FT232BM:
2432 case FT2232C:
ed6e5282 2433 case FT232RL:
094c2e6d
MA		 2434 case FT2232H:
2435 case FT4232H:
464cbb24
AC		 2436 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2437 value) - in the same format as the data returned from the in
2438 point */
2439 ret = usb_control_msg(port->serial->dev,
2440 usb_rcvctrlpipe(port->serial->dev, 0),
2441 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2442 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2443 0, priv->interface,
2444 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2445 if (ret < 0)
464cbb24 2446 return ret;
1da177e4
LT		 2447 break;
2448 default:
2449 return -EFAULT;
1da177e4 2450 }
5c09d144 2451
1da177e4
LT		 2452 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2453 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2454 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2455 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2456 priv->last_dtr_rts;
1da177e4
LT		 2457}
2458
464cbb24 2459static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2460 unsigned int set, unsigned int clear)
1da177e4 2461{
95da310e 2462 struct usb_serial_port *port = tty->driver_data;
441b62c1 2463 dbg("%s TIOCMSET", __func__);
74ede0ff 2464 return update_mctrl(port, set, clear);
1da177e4
LT		 2465}
2466
2467
464cbb24
AC		 2468static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2469 unsigned int cmd, unsigned long arg)
1da177e4 2470{
95da310e 2471 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2472 struct ftdi_private *priv = usb_get_serial_port_data(port);
2473
441b62c1 2474 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2475
2476 /* Based on code from acm.c and others */
2477 switch (cmd) {
2478
1da177e4 2479 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2480 return get_serial_info(port,
2481 (struct serial_struct __user *) arg);
1da177e4
LT		 2482
2483 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2484 return set_serial_info(tty, port,
2485 (struct serial_struct __user *) arg);
1da177e4
LT		 2486
2487 /*
2488 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2489 * - mask passed in arg for lines of interest
2490 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2491 * Caller should use TIOCGICOUNT to see which one it was.
2492 *
2493 * This code is borrowed from linux/drivers/char/serial.c
2494 */
2495 case TIOCMIWAIT:
2496 while (priv != NULL) {
2497 interruptible_sleep_on(&priv->delta_msr_wait);
2498 /* see if a signal did it */
2499 if (signal_pending(current))
2500 return -ERESTARTSYS;
2501 else {
2502 char diff = priv->diff_status;
2503
464cbb24 2504 if (diff == 0)
1da177e4 2505 return -EIO; /* no change => error */
1da177e4
LT		 2506
2507 /* Consume all events */
2508 priv->diff_status = 0;
2509
464cbb24
AC		 2510 /* Return 0 if caller wanted to know about
2511 these bits */
2512 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2513 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2514 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2515 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2516 return 0;
2517 }
2518 /*
464cbb24
AC		 2519 * Otherwise caller can't care less about what
2520 * happened,and so we continue to wait for more
2521 * events.
1da177e4
LT		 2522 */
2523 }
2524 }
95da310e 2525 return 0;
1da177e4
LT		 2526 default:
2527 break;
1da177e4 2528 }
464cbb24
AC		 2529 /* This is not necessarily an error - turns out the higher layers
2530 * will do some ioctls themselves (see comment above)
1da177e4 2531 */
441b62c1 2532 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2533 return -ENOIOCTLCMD;
2534}
1da177e4 2535
95da310e 2536static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2537{
95da310e 2538 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2539 struct ftdi_private *priv = usb_get_serial_port_data(port);
2540 unsigned long flags;
2541
441b62c1 2542 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2543
2544 spin_lock_irqsave(&priv->rx_lock, flags);
2545 priv->rx_flags |= THROTTLED;
2546 spin_unlock_irqrestore(&priv->rx_lock, flags);
2547}
2548
2549
95da310e 2550static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2551{
95da310e 2552 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2553 struct ftdi_private *priv = usb_get_serial_port_data(port);
2554 int actually_throttled;
2555 unsigned long flags;
2556
441b62c1 2557 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2558
2559 spin_lock_irqsave(&priv->rx_lock, flags);
2560 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2561 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2562 spin_unlock_irqrestore(&priv->rx_lock, flags);
2563
2564 if (actually_throttled)
c4028958 2565 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2566}
2567
464cbb24 2568static int __init ftdi_init(void)
1da177e4
LT		 2569{
2570 int retval;
2571
441b62c1 2572 dbg("%s", __func__);
fdcb0a0f
IA		 2573 if (vendor > 0 && product > 0) {
2574 /* Add user specified VID/PID to reserved element of table. */
2575 int i;
2576 for (i = 0; id_table_combined[i].idVendor; i++)
2577 ;
2578 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2579 id_table_combined[i].idVendor = vendor;
2580 id_table_combined[i].idProduct = product;
2581 }
8f977e42 2582 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2583 if (retval)
8f977e42 2584 goto failed_sio_register;
1da177e4 2585 retval = usb_register(&ftdi_driver);
5c09d144 2586 if (retval)
1da177e4
LT		 2587 goto failed_usb_register;
2588
c197a8db
GKH		 2589 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2590 DRIVER_DESC "\n");
1da177e4
LT		 2591 return 0;
2592failed_usb_register:
8f977e42
IA		 2593 usb_serial_deregister(&ftdi_sio_device);
2594failed_sio_register:
1da177e4
LT		 2595 return retval;
2596}
2597
2598
464cbb24 2599static void __exit ftdi_exit(void)
1da177e4
LT		 2600{
2601
441b62c1 2602 dbg("%s", __func__);
1da177e4 2603
464cbb24
AC		 2604 usb_deregister(&ftdi_driver);
2605 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2606
2607}
2608
2609
2610module_init(ftdi_init);
2611module_exit(ftdi_exit);
2612
464cbb24
AC		 2613MODULE_AUTHOR(DRIVER_AUTHOR);
2614MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2615MODULE_LICENSE("GPL");
2616
2617module_param(debug, bool, S_IRUGO | S_IWUSR);
2618MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2619module_param(vendor, ushort, 0);
2620MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2621 __MODULE_STRING(FTDI_VID)")");
2622module_param(product, ushort, 0);
68265043 2623MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2624
Linux kernel - Deliverables
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