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USB: CP210X Replace CP2101 with CP210x
[net-next-2.6.git] / drivers / usb / serial / ftdi_sio.c
CommitLineData
1da177e4
LT		 1/*
2 * USB FTDI SIO driver
3 *
5c09d144
DB		 4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
1da177e4
LT		 6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
5c09d144
DB		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
1da177e4 14 *
464cbb24
AC		 15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
1da177e4
LT		 17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
504b55cc
GKH		 21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 23 *
24 */
25
26/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27/* Thanx to FTDI for so kindly providing details of the protocol required */
28/* to talk to the device */
464cbb24
AC		 29/* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
1da177e4 31
1da177e4
LT		 32#include <linux/kernel.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/slab.h>
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 */
8f977e42 50#define DRIVER_VERSION "v1.4.3"
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
85 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
86
464cbb24
AC		 87 speed_t force_baud; /* if non-zero, force the baud rate to
88 this value */
89 int force_rtscts; /* if non-zero, force RTS-CTS to always
90 be enabled */
0ffbbe25
ON		 91
92 spinlock_t tx_lock; /* spinlock for transmit state */
93 unsigned long tx_bytes;
94 unsigned long tx_outstanding_bytes;
95 unsigned long tx_outstanding_urbs;
96};
97
8f977e42
IA		 98/* struct ftdi_sio_quirk is used by devices requiring special attention. */
99struct ftdi_sio_quirk {
fa91d43b 100 int (*probe)(struct usb_serial *);
464cbb24
AC		 101 /* Special settings for probed ports. */
102 void (*port_probe)(struct ftdi_private *);
8f977e42
IA		 103};
104
464cbb24
AC		 105static int ftdi_jtag_probe(struct usb_serial *serial);
106static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
107static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
108static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 109
20734345
HW		 110static struct ftdi_sio_quirk ftdi_jtag_quirk = {
111 .probe = ftdi_jtag_probe,
fa91d43b
TL		 112};
113
546d7eec
KV		 114static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
115 .probe = ftdi_mtxorb_hack_setup,
116};
117
8f977e42 118static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 119 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 120};
121
122static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 123 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 124};
125
126/*
127 * The 8U232AM has the same API as the sio except for:
128 * - it can support MUCH higher baudrates; up to:
129 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
130 * o 230400 at 12MHz
131 * so .. 8U232AM's baudrate setting codes are different
132 * - it has a two byte status code.
133 * - it returns characters every 16ms (the FTDI does it every 40ms)
134 *
135 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
136 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
137 * combinations in both tables.
8f977e42
IA		 138 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
139 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 140 */
141
142
1da177e4
LT		 143
144static struct usb_device_id id_table_combined [] = {
2011e924
JD		 145 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
146 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
01ba0856 147 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
6e1ab3ed
PM		 148 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 156 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 157 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 158 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 159 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 160 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 161 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 164 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 165 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
c0f8d561 166 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 167 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 168 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
1da177e4
LT		 169 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
170 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
f2ee6955 171 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
1da177e4
LT		 172 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
181 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 183 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
464cbb24
AC		 190 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 230 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 236 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 276 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 278 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 280 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 282 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 284 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 286 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 454 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 455 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 456 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 457 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
505 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
506 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 507 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
508 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
509 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
510 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 511 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
512 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
513 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
514 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 531 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 532 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 533 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 535 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 536 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 537 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 545 /*
42f8aa94
PS		 546 * Due to many user requests for multiple ELV devices we enable
547 * them by default.
e6ac4a40 548 */
42f8aa94
PS		 549 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 567 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 568 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 569 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
5c09d144
DB		 570 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
571 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
572 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
573 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
574 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 577 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
1da177e4
LT		 578 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
579 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
580 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
581 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 582 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 583 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
c3d36c45 584 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
ef31fec0 585 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 586 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 587 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
588 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
589 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
590 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 591 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
592 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
598 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
599 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
600 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 601 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 602 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
609 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
610 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 611 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
612 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 613 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 614 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
615 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 616 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 618 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 619 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 620 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 621 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 622 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
623 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 624 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 625 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 626 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 627 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
628 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 629 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 630 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 631 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 632 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 633 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 634 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 635 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 636 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 637 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 638 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 639 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
640 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
641 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 642 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
822c7ef4 643 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 644 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 645 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 646 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 647 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 648 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 649 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 650 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
651 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
652 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
653 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
654 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 655 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
656 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
657 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
658 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 659 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 660 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 661 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
96285cb8
GC		 662 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
663 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 664 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 665 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
e38c2874 666 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) },
7f82b6dd
AW		 667 { USB_DEVICE(ATMEL_VID, STK541_PID) },
668 { USB_DEVICE(DE_VID, STB_PID) },
669 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 670 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
671 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 672 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 673 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
674 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
fdcb0a0f
IA		 675 { }, /* Optional parameter entry */
676 { } /* Terminating entry */
1da177e4
LT		 677};
678
464cbb24 679MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 680
681static struct usb_driver ftdi_driver = {
682 .name = "ftdi_sio",
683 .probe = usb_serial_probe,
684 .disconnect = usb_serial_disconnect,
685 .id_table = id_table_combined,
5c09d144 686 .no_dynamic_id = 1,
1da177e4
LT		 687};
688
4c4c9432 689static const char *ftdi_chip_name[] = {
1da177e4
LT		 690 [SIO] = "SIO", /* the serial part of FT8U100AX */
691 [FT8U232AM] = "FT8U232AM",
692 [FT232BM] = "FT232BM",
693 [FT2232C] = "FT2232C",
d8b21606 694 [FT232RL] = "FT232RL",
1da177e4
LT		 695};
696
697
698/* Constants for read urb and write urb */
699#define BUFSZ 512
700#define PKTSZ 64
701
702/* rx_flags */
703#define THROTTLED 0x01
704#define ACTUALLY_THROTTLED 0x02
705
1da177e4
LT		 706/* Used for TIOCMIWAIT */
707#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
708#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
709/* End TIOCMIWAIT */
710
bbc5d276
RK		 711#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
712 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 713
714/* function prototypes for a FTDI serial converter */
464cbb24
AC		 715static int ftdi_sio_probe(struct usb_serial *serial,
716 const struct usb_device_id *id);
717static void ftdi_shutdown(struct usb_serial *serial);
718static int ftdi_sio_port_probe(struct usb_serial_port *port);
719static int ftdi_sio_port_remove(struct usb_serial_port *port);
720static int ftdi_open(struct tty_struct *tty,
721 struct usb_serial_port *port, struct file *filp);
335f8514
AC		 722static void ftdi_close(struct usb_serial_port *port);
723static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 724static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
725 const unsigned char *buf, int count);
726static int ftdi_write_room(struct tty_struct *tty);
727static int ftdi_chars_in_buffer(struct tty_struct *tty);
728static void ftdi_write_bulk_callback(struct urb *urb);
729static void ftdi_read_bulk_callback(struct urb *urb);
730static void ftdi_process_read(struct work_struct *work);
731static void ftdi_set_termios(struct tty_struct *tty,
732 struct usb_serial_port *port, struct ktermios *old);
733static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
734static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
735 unsigned int set, unsigned int clear);
736static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
737 unsigned int cmd, unsigned long arg);
738static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
739static void ftdi_throttle(struct tty_struct *tty);
740static void ftdi_unthrottle(struct tty_struct *tty);
741
742static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
743static unsigned short int ftdi_232am_baud_to_divisor(int baud);
744static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
745static __u32 ftdi_232bm_baud_to_divisor(int baud);
1da177e4 746
ea65370d 747static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 748 .driver = {
749 .owner = THIS_MODULE,
269bda1c 750 .name = "ftdi_sio",
18fcac35 751 },
269bda1c 752 .description = "FTDI USB Serial Device",
d9b1b787 753 .usb_driver = &ftdi_driver ,
8f977e42 754 .id_table = id_table_combined,
1da177e4 755 .num_ports = 1,
8f977e42 756 .probe = ftdi_sio_probe,
12bdbe03
JR		 757 .port_probe = ftdi_sio_port_probe,
758 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 759 .open = ftdi_open,
760 .close = ftdi_close,
335f8514 761 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 762 .throttle = ftdi_throttle,
763 .unthrottle = ftdi_unthrottle,
764 .write = ftdi_write,
765 .write_room = ftdi_write_room,
766 .chars_in_buffer = ftdi_chars_in_buffer,
767 .read_bulk_callback = ftdi_read_bulk_callback,
768 .write_bulk_callback = ftdi_write_bulk_callback,
769 .tiocmget = ftdi_tiocmget,
770 .tiocmset = ftdi_tiocmset,
771 .ioctl = ftdi_ioctl,
772 .set_termios = ftdi_set_termios,
773 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 774 .shutdown = ftdi_shutdown,
775};
776
1da177e4
LT		 777
778#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 779#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 780
781/* High and low are for DTR, RTS etc etc */
782#define HIGH 1
783#define LOW 0
784
22465400
IA		 785/* number of outstanding urbs to prevent userspace DoS from happening */
786#define URB_UPPER_LIMIT 42
787
1da177e4
LT		 788/*
789 * ***************************************************************************
fa91d43b 790 * Utility functions
1da177e4
LT		 791 * ***************************************************************************
792 */
793
794static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
795{
796 unsigned short int divisor;
464cbb24
AC		 797 /* divisor shifted 3 bits to the left */
798 int divisor3 = base / 2 / baud;
799 if ((divisor3 & 0x7) == 7)
800 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 801 divisor = divisor3 >> 3;
802 divisor3 &= 0x7;
464cbb24
AC		 803 if (divisor3 == 1)
804 divisor |= 0xc000;
805 else if (divisor3 >= 4)
806 divisor |= 0x4000;
807 else if (divisor3 != 0)
808 divisor |= 0x8000;
809 else if (divisor == 1)
810 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 811 return divisor;
812}
813
814static unsigned short int ftdi_232am_baud_to_divisor(int baud)
815{
464cbb24 816 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 817}
818
819static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
820{
821 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
822 __u32 divisor;
464cbb24
AC		 823 /* divisor shifted 3 bits to the left */
824 int divisor3 = base / 2 / baud;
1da177e4
LT		 825 divisor = divisor3 >> 3;
826 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
827 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 828 if (divisor == 1)
829 divisor = 0;
830 else if (divisor == 0x4001)
831 divisor = 1;
1da177e4
LT		 832 return divisor;
833}
834
835static __u32 ftdi_232bm_baud_to_divisor(int baud)
836{
464cbb24 837 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 838}
839
74ede0ff
IA		 840#define set_mctrl(port, set) update_mctrl((port), (set), 0)
841#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
842
464cbb24
AC		 843static int update_mctrl(struct usb_serial_port *port, unsigned int set,
844 unsigned int clear)
1da177e4
LT		 845{
846 struct ftdi_private *priv = usb_get_serial_port_data(port);
847 char *buf;
74ede0ff 848 unsigned urb_value;
1da177e4 849 int rv;
1da177e4 850
74ede0ff 851 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 852 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 853 return 0; /* no change */
854 }
1da177e4 855
1da177e4 856 buf = kmalloc(1, GFP_NOIO);
9b0f2582 857 if (!buf)
1da177e4 858 return -ENOMEM;
74ede0ff
IA		 859
860 clear &= ~set; /* 'set' takes precedence over 'clear' */
861 urb_value = 0;
862 if (clear & TIOCM_DTR)
863 urb_value |= FTDI_SIO_SET_DTR_LOW;
864 if (clear & TIOCM_RTS)
865 urb_value |= FTDI_SIO_SET_RTS_LOW;
866 if (set & TIOCM_DTR)
867 urb_value |= FTDI_SIO_SET_DTR_HIGH;
868 if (set & TIOCM_RTS)
869 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 870 rv = usb_control_msg(port->serial->dev,
871 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 872 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 873 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 874 urb_value, priv->interface,
1da177e4
LT		 875 buf, 0, WDR_TIMEOUT);
876
877 kfree(buf);
74ede0ff 878 if (rv < 0) {
43b11d33 879 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 880 __func__,
74ede0ff
IA		 881 (set & TIOCM_DTR) ? "HIGH" :
882 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
883 (set & TIOCM_RTS) ? "HIGH" :
884 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
885 } else {
441b62c1 886 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 887 (set & TIOCM_DTR) ? "HIGH" :
888 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
889 (set & TIOCM_RTS) ? "HIGH" :
890 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 891 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 892 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
893 }
1da177e4
LT		 894 return rv;
895}
896
897
464cbb24
AC		 898static __u32 get_ftdi_divisor(struct tty_struct *tty,
899 struct usb_serial_port *port)
1da177e4
LT		 900{ /* get_ftdi_divisor */
901 struct ftdi_private *priv = usb_get_serial_port_data(port);
902 __u32 div_value = 0;
903 int div_okay = 1;
904 int baud;
905
906 /*
464cbb24
AC		 907 * The logic involved in setting the baudrate can be cleanly split into
908 * 3 steps.
1da177e4 909 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 910 * 2. If these are not enough, you can set any speed using alt_speed as
911 * follows:
1da177e4
LT		 912 * - set tty->termios->c_cflag speed to B38400
913 * - set your real speed in tty->alt_speed; it gets ignored when
914 * alt_speed==0, (or)
464cbb24
AC		 915 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
916 * follows:
917 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
918 * this just sets alt_speed to (HI: 57600, VHI: 115200,
919 * SHI: 230400, WARP: 460800)
1da177e4
LT		 920 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
921 * 3. You can also set baud rate by setting custom divisor as follows
922 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 923 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
924 * follows:
1da177e4
LT		 925 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
926 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 927 * ** Step 3 is done courtesy of code borrowed from serial.c
928 * I should really spend some time and separate + move this common
929 * code to serial.c, it is replicated in nearly every serial driver
930 * you see.
1da177e4
LT		 931 */
932
464cbb24
AC		 933 /* 1. Get the baud rate from the tty settings, this observes
934 alt_speed hack */
1da177e4 935
95da310e 936 baud = tty_get_baud_rate(tty);
441b62c1 937 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 938
464cbb24
AC		 939 /* 2. Observe async-compatible custom_divisor hack, update baudrate
940 if needed */
1da177e4
LT		 941
942 if (baud == 38400 &&
943 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
944 (priv->custom_divisor)) {
945 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 946 dbg("%s - custom divisor %d sets baud rate to %d",
947 __func__, priv->custom_divisor, baud);
1da177e4
LT		 948 }
949
950 /* 3. Convert baudrate to device-specific divisor */
951
464cbb24
AC		 952 if (!baud)
953 baud = 9600;
954 switch (priv->chip_type) {
1da177e4 955 case SIO: /* SIO chip */
464cbb24 956 switch (baud) {
1da177e4
LT		 957 case 300: div_value = ftdi_sio_b300; break;
958 case 600: div_value = ftdi_sio_b600; break;
959 case 1200: div_value = ftdi_sio_b1200; break;
960 case 2400: div_value = ftdi_sio_b2400; break;
961 case 4800: div_value = ftdi_sio_b4800; break;
962 case 9600: div_value = ftdi_sio_b9600; break;
963 case 19200: div_value = ftdi_sio_b19200; break;
964 case 38400: div_value = ftdi_sio_b38400; break;
965 case 57600: div_value = ftdi_sio_b57600; break;
966 case 115200: div_value = ftdi_sio_b115200; break;
967 } /* baud */
968 if (div_value == 0) {
464cbb24
AC		 969 dbg("%s - Baudrate (%d) requested is not supported",
970 __func__, baud);
1da177e4 971 div_value = ftdi_sio_b9600;
bd5e47cc 972 baud = 9600;
1da177e4
LT		 973 div_okay = 0;
974 }
975 break;
976 case FT8U232AM: /* 8U232AM chip */
977 if (baud <= 3000000) {
978 div_value = ftdi_232am_baud_to_divisor(baud);
979 } else {
464cbb24 980 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 981 baud = 9600;
1da177e4
LT		 982 div_value = ftdi_232am_baud_to_divisor(9600);
983 div_okay = 0;
984 }
985 break;
986 case FT232BM: /* FT232BM chip */
987 case FT2232C: /* FT2232C chip */
3b009c63 988 case FT232RL:
1da177e4
LT		 989 if (baud <= 3000000) {
990 div_value = ftdi_232bm_baud_to_divisor(baud);
991 } else {
464cbb24 992 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 993 div_value = ftdi_232bm_baud_to_divisor(9600);
994 div_okay = 0;
669a6db1 995 baud = 9600;
1da177e4
LT		 996 }
997 break;
998 } /* priv->chip_type */
999
1000 if (div_okay) {
1001 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1002 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1003 ftdi_chip_name[priv->chip_type]);
1004 }
1005
95da310e 1006 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1007 return div_value;
1da177e4
LT		 1008}
1009
95da310e
AC		 1010static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1011{
1012 struct ftdi_private *priv = usb_get_serial_port_data(port);
1013 char *buf;
464cbb24 1014 __u16 urb_value;
95da310e
AC		 1015 __u16 urb_index;
1016 __u32 urb_index_value;
1017 int rv;
1018
1019 buf = kmalloc(1, GFP_NOIO);
1020 if (!buf)
1021 return -ENOMEM;
1022
1023 urb_index_value = get_ftdi_divisor(tty, port);
1024 urb_value = (__u16)urb_index_value;
1025 urb_index = (__u16)(urb_index_value >> 16);
1026 if (priv->interface) { /* FT2232C */
1027 urb_index = (__u16)((urb_index << 8) | priv->interface);
1028 }
1029
1030 rv = usb_control_msg(port->serial->dev,
1031 usb_sndctrlpipe(port->serial->dev, 0),
1032 FTDI_SIO_SET_BAUDRATE_REQUEST,
1033 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1034 urb_value, urb_index,
1035 buf, 0, WDR_SHORT_TIMEOUT);
1036
1037 kfree(buf);
1038 return rv;
1039}
1040
1041
1da177e4 1042
464cbb24
AC		 1043static int get_serial_info(struct usb_serial_port *port,
1044 struct serial_struct __user *retinfo)
1da177e4
LT		 1045{
1046 struct ftdi_private *priv = usb_get_serial_port_data(port);
1047 struct serial_struct tmp;
1048
1049 if (!retinfo)
1050 return -EFAULT;
1051 memset(&tmp, 0, sizeof(tmp));
1052 tmp.flags = priv->flags;
1053 tmp.baud_base = priv->baud_base;
1054 tmp.custom_divisor = priv->custom_divisor;
1055 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1056 return -EFAULT;
1057 return 0;
1058} /* get_serial_info */
1059
1060
95da310e 1061static int set_serial_info(struct tty_struct *tty,
464cbb24 1062 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1063{ /* set_serial_info */
1064 struct ftdi_private *priv = usb_get_serial_port_data(port);
1065 struct serial_struct new_serial;
1066 struct ftdi_private old_priv;
1067
1068 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1069 return -EFAULT;
6b447f04
AC		 1070
1071 lock_kernel();
464cbb24 1072 old_priv = *priv;
1da177e4
LT		 1073
1074 /* Do error checking and permission checking */
1075
1076 if (!capable(CAP_SYS_ADMIN)) {
1077 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1078 (priv->flags & ~ASYNC_USR_MASK))) {
1079 unlock_kernel();
1da177e4 1080 return -EPERM;
64905b48 1081 }
1da177e4
LT		 1082 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1083 (new_serial.flags & ASYNC_USR_MASK));
1084 priv->custom_divisor = new_serial.custom_divisor;
1085 goto check_and_exit;
1086 }
1087
1088 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1089 (new_serial.baud_base < 9600)) {
1090 unlock_kernel();
1da177e4 1091 return -EINVAL;
6b447f04 1092 }
1da177e4
LT		 1093
1094 /* Make the changes - these are privileged changes! */
1095
1096 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1097 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1098 priv->custom_divisor = new_serial.custom_divisor;
1099
95da310e 1100 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4
LT		 1101
1102check_and_exit:
1103 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1104 (priv->flags & ASYNC_SPD_MASK)) {
1105 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1106 tty->alt_speed = 57600;
1da177e4 1107 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1108 tty->alt_speed = 115200;
1da177e4 1109 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1110 tty->alt_speed = 230400;
1da177e4 1111 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1112 tty->alt_speed = 460800;
1da177e4 1113 else
95da310e 1114 tty->alt_speed = 0;
1da177e4
LT		 1115 }
1116 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1117 (priv->flags & ASYNC_SPD_MASK)) ||
1118 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1119 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1120 unlock_kernel();
95da310e 1121 change_speed(tty, port);
1da177e4 1122 }
6b447f04
AC		 1123 else
1124 unlock_kernel();
95da310e 1125 return 0;
1da177e4
LT		 1126
1127} /* set_serial_info */
1128
1129
8f977e42
IA		 1130/* Determine type of FTDI chip based on USB config and descriptor. */
1131static void ftdi_determine_type(struct usb_serial_port *port)
1132{
1133 struct ftdi_private *priv = usb_get_serial_port_data(port);
1134 struct usb_serial *serial = port->serial;
1135 struct usb_device *udev = serial->dev;
1136 unsigned version;
1137 unsigned interfaces;
1138
1139 /* Assume it is not the original SIO device for now. */
f5e09b7c 1140 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1141 priv->write_offset = 0;
1142
1143 version = le16_to_cpu(udev->descriptor.bcdDevice);
1144 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1145 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1146 version, interfaces);
1147 if (interfaces > 1) {
1148 int inter;
1149
1150 /* Multiple interfaces. Assume FT2232C. */
1151 priv->chip_type = FT2232C;
1152 /* Determine interface code. */
1153 inter = serial->interface->altsetting->desc.bInterfaceNumber;
464cbb24 1154 if (inter == 0)
8f977e42 1155 priv->interface = PIT_SIOA;
464cbb24 1156 else
8f977e42 1157 priv->interface = PIT_SIOB;
8f977e42
IA		 1158 /* BM-type devices have a bug where bcdDevice gets set
1159 * to 0x200 when iSerialNumber is 0. */
1160 if (version < 0x500) {
1161 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1162 __func__);
8f977e42
IA		 1163 }
1164 } else if (version < 0x200) {
1165 /* Old device. Assume its the original SIO. */
1166 priv->chip_type = SIO;
1167 priv->baud_base = 12000000 / 16;
1168 priv->write_offset = 1;
1169 } else if (version < 0x400) {
1170 /* Assume its an FT8U232AM (or FT8U245AM) */
1171 /* (It might be a BM because of the iSerialNumber bug,
1172 * but it will still work as an AM device.) */
1173 priv->chip_type = FT8U232AM;
3b009c63 1174 } else if (version < 0x600) {
8f977e42
IA		 1175 /* Assume its an FT232BM (or FT245BM) */
1176 priv->chip_type = FT232BM;
3b009c63
DB		 1177 } else {
1178 /* Assume its an FT232R */
1179 priv->chip_type = FT232RL;
8f977e42 1180 }
c197a8db 1181 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1182}
1183
1184
1da177e4
LT		 1185/*
1186 * ***************************************************************************
1187 * Sysfs Attribute
1188 * ***************************************************************************
1189 */
1190
464cbb24
AC		 1191static ssize_t show_latency_timer(struct device *dev,
1192 struct device_attribute *attr, char *buf)
1da177e4
LT		 1193{
1194 struct usb_serial_port *port = to_usb_serial_port(dev);
1195 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1196 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1197 unsigned short latency = 0;
1198 int rv = 0;
5c09d144 1199
5c09d144 1200
464cbb24 1201 dbg("%s", __func__);
5c09d144 1202
1da177e4
LT		 1203 rv = usb_control_msg(udev,
1204 usb_rcvctrlpipe(udev, 0),
1205 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1206 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1207 0, priv->interface,
464cbb24 1208 (char *) &latency, 1, WDR_TIMEOUT);
5c09d144 1209
1da177e4 1210 if (rv < 0) {
898eb71c 1211 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1da177e4
LT		 1212 return -EIO;
1213 }
1214 return sprintf(buf, "%i\n", latency);
1215}
1216
1217/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1218static ssize_t store_latency_timer(struct device *dev,
1219 struct device_attribute *attr, const char *valbuf,
1220 size_t count)
1da177e4
LT		 1221{
1222 struct usb_serial_port *port = to_usb_serial_port(dev);
1223 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1224 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1225 char buf[1];
1226 int v = simple_strtoul(valbuf, NULL, 10);
1227 int rv = 0;
5c09d144 1228
441b62c1 1229 dbg("%s: setting latency timer = %i", __func__, v);
5c09d144 1230
1da177e4
LT		 1231 rv = usb_control_msg(udev,
1232 usb_sndctrlpipe(udev, 0),
1233 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1234 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1235 v, priv->interface,
1da177e4 1236 buf, 0, WDR_TIMEOUT);
5c09d144 1237
1da177e4 1238 if (rv < 0) {
898eb71c 1239 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1da177e4
LT		 1240 return -EIO;
1241 }
5c09d144 1242
1da177e4
LT		 1243 return count;
1244}
1245
1246/* Write an event character directly to the FTDI register. The ASCII
1247 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1248static ssize_t store_event_char(struct device *dev,
1249 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1250{
1251 struct usb_serial_port *port = to_usb_serial_port(dev);
1252 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1253 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1254 char buf[1];
1255 int v = simple_strtoul(valbuf, NULL, 10);
1256 int rv = 0;
5c09d144 1257
441b62c1 1258 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1259
1da177e4
LT		 1260 rv = usb_control_msg(udev,
1261 usb_sndctrlpipe(udev, 0),
1262 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1263 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1264 v, priv->interface,
1da177e4 1265 buf, 0, WDR_TIMEOUT);
5c09d144 1266
1da177e4
LT		 1267 if (rv < 0) {
1268 dbg("Unable to write event character: %i", rv);
1269 return -EIO;
1270 }
5c09d144 1271
1da177e4
LT		 1272 return count;
1273}
1274
464cbb24
AC		 1275static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1276 store_latency_timer);
1da177e4
LT		 1277static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1278
12bdbe03 1279static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1280{
12bdbe03 1281 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1282 int retval = 0;
1da177e4 1283
464cbb24 1284 dbg("%s", __func__);
13f4db9e 1285
1da177e4
LT		 1286 /* XXX I've no idea if the original SIO supports the event_char
1287 * sysfs parameter, so I'm playing it safe. */
1288 if (priv->chip_type != SIO) {
1289 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1290 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1291 if ((!retval) &&
97cd49eb
SM		 1292 (priv->chip_type == FT232BM ||
1293 priv->chip_type == FT2232C ||
1294 priv->chip_type == FT232RL)) {
12bdbe03 1295 retval = device_create_file(&port->dev,
13f4db9e 1296 &dev_attr_latency_timer);
1da177e4
LT		 1297 }
1298 }
13f4db9e 1299 return retval;
1da177e4
LT		 1300}
1301
12bdbe03 1302static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1303{
12bdbe03 1304 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1305
464cbb24 1306 dbg("%s", __func__);
1da177e4 1307
1da177e4
LT		 1308 /* XXX see create_sysfs_attrs */
1309 if (priv->chip_type != SIO) {
12bdbe03 1310 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1311 if (priv->chip_type == FT232BM ||
1312 priv->chip_type == FT2232C ||
1313 priv->chip_type == FT232RL) {
12bdbe03 1314 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1315 }
1316 }
5c09d144 1317
1da177e4
LT		 1318}
1319
1320/*
1321 * ***************************************************************************
1322 * FTDI driver specific functions
1323 * ***************************************************************************
1324 */
1325
8f977e42 1326/* Probe function to check for special devices */
464cbb24
AC		 1327static int ftdi_sio_probe(struct usb_serial *serial,
1328 const struct usb_device_id *id)
8f977e42 1329{
464cbb24
AC		 1330 struct ftdi_sio_quirk *quirk =
1331 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1332
1333 if (quirk && quirk->probe) {
1334 int ret = quirk->probe(serial);
1335 if (ret != 0)
1336 return ret;
1337 }
1338
8f977e42
IA		 1339 usb_set_serial_data(serial, (void *)id->driver_info);
1340
fa91d43b 1341 return 0;
8f977e42
IA		 1342}
1343
12bdbe03 1344static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1345{
1da177e4 1346 struct ftdi_private *priv;
0ffbbe25
ON		 1347 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1348
13f4db9e 1349
464cbb24 1350 dbg("%s", __func__);
1da177e4 1351
80b6ca48 1352 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1353 if (!priv) {
194343d9 1354 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1355 sizeof(struct ftdi_private));
1da177e4
LT		 1356 return -ENOMEM;
1357 }
1da177e4 1358
c45d6320 1359 kref_init(&priv->kref);
1da177e4 1360 spin_lock_init(&priv->rx_lock);
22465400 1361 spin_lock_init(&priv->tx_lock);
464cbb24 1362 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1363 /* This will push the characters through immediately rather
1364 than queue a task to deliver them */
1365 priv->flags = ASYNC_LOW_LATENCY;
1366
0ffbbe25
ON		 1367 if (quirk && quirk->port_probe)
1368 quirk->port_probe(priv);
1369
1da177e4 1370 /* Increase the size of read buffers */
1bc3c9e1 1371 kfree(port->bulk_in_buffer);
464cbb24 1372 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1373 if (!port->bulk_in_buffer) {
464cbb24 1374 kfree(priv);
1da177e4
LT		 1375 return -ENOMEM;
1376 }
1377 if (port->read_urb) {
1378 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1379 port->read_urb->transfer_buffer_length = BUFSZ;
1380 }
1381
c4028958
DH		 1382 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1383 priv->port = port;
76854cea 1384
1da177e4
LT		 1385 /* Free port's existing write urb and transfer buffer. */
1386 if (port->write_urb) {
464cbb24 1387 usb_free_urb(port->write_urb);
1da177e4
LT		 1388 port->write_urb = NULL;
1389 }
1bc3c9e1
JJ		 1390 kfree(port->bulk_out_buffer);
1391 port->bulk_out_buffer = NULL;
1da177e4 1392
12bdbe03 1393 usb_set_serial_port_data(port, priv);
1da177e4 1394
464cbb24 1395 ftdi_determine_type(port);
12bdbe03
JR		 1396 create_sysfs_attrs(port);
1397 return 0;
1398}
1da177e4 1399
8f977e42
IA		 1400/* Setup for the USB-UIRT device, which requires hardwired
1401 * baudrate (38400 gets mapped to 312500) */
1da177e4 1402/* Called from usbserial:serial_probe */
464cbb24 1403static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1404{
464cbb24 1405 dbg("%s", __func__);
1da177e4 1406
1da177e4
LT		 1407 priv->flags |= ASYNC_SPD_CUST;
1408 priv->custom_divisor = 77;
669a6db1 1409 priv->force_baud = 38400;
8f977e42 1410} /* ftdi_USB_UIRT_setup */
1da177e4 1411
8f977e42
IA		 1412/* Setup for the HE-TIRA1 device, which requires hardwired
1413 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1414
1415static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1416{
464cbb24 1417 dbg("%s", __func__);
1da177e4 1418
1da177e4
LT		 1419 priv->flags |= ASYNC_SPD_CUST;
1420 priv->custom_divisor = 240;
669a6db1 1421 priv->force_baud = 38400;
1da177e4 1422 priv->force_rtscts = 1;
8f977e42 1423} /* ftdi_HE_TIRA1_setup */
1da177e4 1424
fa91d43b 1425/*
20734345
HW		 1426 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1427 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1428 * userspace using openocd.
fa91d43b 1429 */
20734345 1430static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1431{
1432 struct usb_device *udev = serial->dev;
1433 struct usb_interface *interface = serial->interface;
1434
464cbb24 1435 dbg("%s", __func__);
fa91d43b
TL		 1436
1437 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1438 dev_info(&udev->dev,
1439 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1440 return -ENODEV;
1441 }
1442
1443 return 0;
1444}
1da177e4 1445
546d7eec
KV		 1446/*
1447 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1448 * We have to correct it if we want to read from it.
1449 */
1450static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1451{
1452 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1453 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1454
1455 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1456 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1457 dev_info(&serial->dev->dev,
1458 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1459 }
1460
1461 return 0;
1462}
1463
5c09d144 1464/* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1da177e4
LT		 1465 * it is called when the usb device is disconnected
1466 *
1467 * usbserial:usb_serial_disconnect
1468 * calls __serial_close for each open of the port
1469 * shutdown is called then (ie ftdi_shutdown)
1470 */
464cbb24 1471static void ftdi_shutdown(struct usb_serial *serial)
12bdbe03 1472{
441b62c1 1473 dbg("%s", __func__);
12bdbe03 1474}
5c09d144 1475
c45d6320
AS		 1476static void ftdi_sio_priv_release(struct kref *k)
1477{
1478 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1479
1480 kfree(priv);
1481}
1482
12bdbe03
JR		 1483static int ftdi_sio_port_remove(struct usb_serial_port *port)
1484{
1da177e4
LT		 1485 struct ftdi_private *priv = usb_get_serial_port_data(port);
1486
441b62c1 1487 dbg("%s", __func__);
1da177e4 1488
12bdbe03 1489 remove_sysfs_attrs(port);
5c09d144 1490
80193195 1491 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1492
12bdbe03
JR		 1493 return 0;
1494}
1da177e4 1495
95da310e
AC		 1496static int ftdi_open(struct tty_struct *tty,
1497 struct usb_serial_port *port, struct file *filp)
1da177e4 1498{ /* ftdi_open */
1da177e4
LT		 1499 struct usb_device *dev = port->serial->dev;
1500 struct ftdi_private *priv = usb_get_serial_port_data(port);
1501 unsigned long flags;
5c09d144 1502
1da177e4
LT		 1503 int result = 0;
1504 char buf[1]; /* Needed for the usb_control_msg I think */
1505
441b62c1 1506 dbg("%s", __func__);
1da177e4 1507
22465400
IA		 1508 spin_lock_irqsave(&priv->tx_lock, flags);
1509 priv->tx_bytes = 0;
1510 spin_unlock_irqrestore(&priv->tx_lock, flags);
1511 spin_lock_irqsave(&priv->rx_lock, flags);
1512 priv->rx_bytes = 0;
1513 spin_unlock_irqrestore(&priv->rx_lock, flags);
1514
95da310e
AC		 1515 if (tty)
1516 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4
LT		 1517
1518 /* No error checking for this (will get errors later anyway) */
1519 /* See ftdi_sio.h for description of what is reset */
1520 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1521 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1522 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1523 priv->interface, buf, 0, WDR_TIMEOUT);
1524
1525 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1526 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1527 This is same behaviour as serial.c/rs_open() - Kuba */
1528
1529 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1530 if (tty)
1531 ftdi_set_termios(tty, port, tty->termios);
1da177e4
LT		 1532
1533 /* FIXME: Flow control might be enabled, so it should be checked -
1534 we have no control of defaults! */
1535 /* Turn on RTS and DTR since we are not flow controlling by default */
74ede0ff 1536 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 1537
1538 /* Not throttled */
1539 spin_lock_irqsave(&priv->rx_lock, flags);
1540 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1541 spin_unlock_irqrestore(&priv->rx_lock, flags);
1542
1543 /* Start reading from the device */
76854cea 1544 priv->rx_processed = 0;
1da177e4 1545 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1546 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1547 port->read_urb->transfer_buffer,
1548 port->read_urb->transfer_buffer_length,
1549 ftdi_read_bulk_callback, port);
1da177e4
LT		 1550 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1551 if (result)
194343d9
GKH		 1552 dev_err(&port->dev,
1553 "%s - failed submitting read urb, error %d\n",
1554 __func__, result);
c45d6320
AS		 1555 else
1556 kref_get(&priv->kref);
1da177e4
LT		 1557
1558 return result;
1559} /* ftdi_open */
1560
1561
335f8514
AC		 1562static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1563{
1564 struct ftdi_private *priv = usb_get_serial_port_data(port);
1565 char buf[1];
1566
1567 mutex_lock(&port->serial->disc_mutex);
1568 if (!port->serial->disconnected) {
1569 /* Disable flow control */
1570 if (!on && usb_control_msg(port->serial->dev,
1571 usb_sndctrlpipe(port->serial->dev, 0),
1572 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1573 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1574 0, priv->interface, buf, 0,
1575 WDR_TIMEOUT) < 0) {
1576 dev_err(&port->dev, "error from flowcontrol urb\n");
1577 }
1578 /* drop RTS and DTR */
1579 if (on)
1580 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1581 else
1582 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1583 }
1584 mutex_unlock(&port->serial->disc_mutex);
1585}
1da177e4 1586
5c09d144 1587/*
1da177e4
LT		 1588 * usbserial:__serial_close only calls ftdi_close if the point is open
1589 *
1590 * This only gets called when it is the last close
5c09d144
DB		 1591 *
1592 *
1da177e4
LT		 1593 */
1594
335f8514 1595static void ftdi_close(struct usb_serial_port *port)
1da177e4 1596{ /* ftdi_close */
1da177e4 1597 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1598
441b62c1 1599 dbg("%s", __func__);
1da177e4 1600
76854cea
IA		 1601
1602 /* cancel any scheduled reading */
c45d6320 1603 cancel_delayed_work_sync(&priv->rx_work);
5c09d144 1604
1da177e4 1605 /* shutdown our bulk read */
794c944e 1606 usb_kill_urb(port->read_urb);
c45d6320 1607 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1608} /* ftdi_close */
1609
1610
5c09d144 1611
1da177e4
LT		 1612/* The SIO requires the first byte to have:
1613 * B0 1
1614 * B1 0
1615 * B2..7 length of message excluding byte 0
1616 *
1617 * The new devices do not require this byte
1618 */
95da310e 1619static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1620 const unsigned char *buf, int count)
1621{ /* ftdi_write */
1622 struct ftdi_private *priv = usb_get_serial_port_data(port);
1623 struct urb *urb;
1624 unsigned char *buffer;
1625 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1626 int status;
1627 int transfer_size;
22465400 1628 unsigned long flags;
1da177e4 1629
441b62c1 1630 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1631
1632 if (count == 0) {
1633 dbg("write request of 0 bytes");
1634 return 0;
1635 }
22465400
IA		 1636 spin_lock_irqsave(&priv->tx_lock, flags);
1637 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1638 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1639 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1640 return 0;
1641 }
62127a58 1642 priv->tx_outstanding_urbs++;
22465400 1643 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1644
1da177e4 1645 data_offset = priv->write_offset;
464cbb24 1646 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1647
1648 /* Determine total transfer size */
1649 transfer_size = count;
1650 if (data_offset > 0) {
1651 /* Original sio needs control bytes too... */
1652 transfer_size += (data_offset *
1653 ((count + (PKTSZ - 1 - data_offset)) /
1654 (PKTSZ - data_offset)));
1655 }
1656
464cbb24 1657 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1658 if (!buffer) {
194343d9
GKH		 1659 dev_err(&port->dev,
1660 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1661 count = -ENOMEM;
1662 goto error_no_buffer;
1da177e4
LT		 1663 }
1664
1665 urb = usb_alloc_urb(0, GFP_ATOMIC);
1666 if (!urb) {
194343d9 1667 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1668 count = -ENOMEM;
1669 goto error_no_urb;
1da177e4
LT		 1670 }
1671
1672 /* Copy data */
1673 if (data_offset > 0) {
464cbb24
AC		 1674 /* Original sio requires control byte at start of
1675 each packet. */
1da177e4
LT		 1676 int user_pktsz = PKTSZ - data_offset;
1677 int todo = count;
1678 unsigned char *first_byte = buffer;
1679 const unsigned char *current_position = buf;
1680
1681 while (todo > 0) {
464cbb24 1682 if (user_pktsz > todo)
1da177e4 1683 user_pktsz = todo;
1da177e4 1684 /* Write the control byte at the front of the packet*/
5c09d144 1685 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1686 /* Copy data for packet */
464cbb24 1687 memcpy(first_byte + data_offset,
1da177e4
LT		 1688 current_position, user_pktsz);
1689 first_byte += user_pktsz + data_offset;
1690 current_position += user_pktsz;
1691 todo -= user_pktsz;
1692 }
1693 } else {
1694 /* No control byte required. */
1695 /* Copy in the data to send */
464cbb24 1696 memcpy(buffer, buf, count);
1da177e4
LT		 1697 }
1698
464cbb24
AC		 1699 usb_serial_debug_data(debug, &port->dev, __func__,
1700 transfer_size, buffer);
1da177e4
LT		 1701
1702 /* fill the buffer and send it */
5c09d144 1703 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1704 usb_sndbulkpipe(port->serial->dev,
1705 port->bulk_out_endpointAddress),
1706 buffer, transfer_size,
1707 ftdi_write_bulk_callback, port);
1da177e4
LT		 1708
1709 status = usb_submit_urb(urb, GFP_ATOMIC);
1710 if (status) {
194343d9
GKH		 1711 dev_err(&port->dev,
1712 "%s - failed submitting write urb, error %d\n",
1713 __func__, status);
1da177e4 1714 count = status;
62127a58 1715 goto error;
22465400
IA		 1716 } else {
1717 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1718 priv->tx_outstanding_bytes += count;
1719 priv->tx_bytes += count;
1720 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1721 }
1722
1723 /* we are done with this urb, so let the host driver
1724 * really free it when it is finished with it */
62127a58 1725 usb_free_urb(urb);
1da177e4 1726
441b62c1 1727 dbg("%s write returning: %d", __func__, count);
1da177e4 1728 return count;
62127a58
ON		 1729error:
1730 usb_free_urb(urb);
1731error_no_urb:
464cbb24 1732 kfree(buffer);
62127a58
ON		 1733error_no_buffer:
1734 spin_lock_irqsave(&priv->tx_lock, flags);
1735 priv->tx_outstanding_urbs--;
1736 spin_unlock_irqrestore(&priv->tx_lock, flags);
1737 return count;
1da177e4
LT		 1738} /* ftdi_write */
1739
1740
1741/* This function may get called when the device is closed */
1742
464cbb24 1743static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1744{
22465400 1745 unsigned long flags;
cdc97792 1746 struct usb_serial_port *port = urb->context;
22465400
IA		 1747 struct ftdi_private *priv;
1748 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1749 unsigned long countback;
0fb0aa18 1750 int status = urb->status;
1da177e4
LT		 1751
1752 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1753 kfree(urb->transfer_buffer);
1da177e4 1754
441b62c1 1755 dbg("%s - port %d", __func__, port->number);
5c09d144 1756
0fb0aa18
GKH		 1757 if (status) {
1758 dbg("nonzero write bulk status received: %d", status);
1da177e4
LT		 1759 return;
1760 }
1761
22465400
IA		 1762 priv = usb_get_serial_port_data(port);
1763 if (!priv) {
441b62c1 1764 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1765 return;
1766 }
1767 /* account for transferred data */
1768 countback = urb->actual_length;
1769 data_offset = priv->write_offset;
1770 if (data_offset > 0) {
1771 /* Subtract the control bytes */
dfa5ec79 1772 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
22465400
IA		 1773 }
1774 spin_lock_irqsave(&priv->tx_lock, flags);
1775 --priv->tx_outstanding_urbs;
1776 priv->tx_outstanding_bytes -= countback;
1777 spin_unlock_irqrestore(&priv->tx_lock, flags);
1778
cf2c7481 1779 usb_serial_port_softint(port);
1da177e4
LT		 1780} /* ftdi_write_bulk_callback */
1781
1782
95da310e 1783static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1784{
95da310e 1785 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1786 struct ftdi_private *priv = usb_get_serial_port_data(port);
1787 int room;
1788 unsigned long flags;
1789
441b62c1 1790 dbg("%s - port %d", __func__, port->number);
1da177e4 1791
22465400
IA		 1792 spin_lock_irqsave(&priv->tx_lock, flags);
1793 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1794 /*
1795 * We really can take anything the user throws at us
1796 * but let's pick a nice big number to tell the tty
1797 * layer that we have lots of free space
1798 */
1799 room = 2048;
1800 } else {
1801 room = 0;
1802 }
1803 spin_unlock_irqrestore(&priv->tx_lock, flags);
1804 return room;
95da310e 1805}
1da177e4 1806
95da310e
AC		 1807static int ftdi_chars_in_buffer(struct tty_struct *tty)
1808{
1809 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1810 struct ftdi_private *priv = usb_get_serial_port_data(port);
1811 int buffered;
1812 unsigned long flags;
1813
441b62c1 1814 dbg("%s - port %d", __func__, port->number);
1da177e4 1815
22465400
IA		 1816 spin_lock_irqsave(&priv->tx_lock, flags);
1817 buffered = (int)priv->tx_outstanding_bytes;
1818 spin_unlock_irqrestore(&priv->tx_lock, flags);
1819 if (buffered < 0) {
194343d9
GKH		 1820 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1821 __func__);
22465400
IA		 1822 buffered = 0;
1823 }
1824 return buffered;
95da310e 1825}
1da177e4 1826
95da310e
AC		 1827static void ftdi_read_bulk_callback(struct urb *urb)
1828{
cdc97792 1829 struct usb_serial_port *port = urb->context;
1da177e4
LT		 1830 struct tty_struct *tty;
1831 struct ftdi_private *priv;
22465400
IA		 1832 unsigned long countread;
1833 unsigned long flags;
0fb0aa18 1834 int status = urb->status;
1da177e4
LT		 1835
1836 if (urb->number_of_packets > 0) {
194343d9
GKH		 1837 dev_err(&port->dev, "%s transfer_buffer_length %d "
1838 "actual_length %d number of packets %d\n", __func__,
1839 urb->transfer_buffer_length,
1840 urb->actual_length, urb->number_of_packets);
1841 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1842 urb->transfer_flags);
1da177e4
LT		 1843 }
1844
441b62c1 1845 dbg("%s - port %d", __func__, port->number);
1da177e4 1846
95da310e 1847 if (port->port.count <= 0)
1da177e4
LT		 1848 return;
1849
4a90f09b 1850 tty = tty_port_tty_get(&port->port);
1da177e4 1851 if (!tty) {
464cbb24 1852 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1853 return;
1854 }
1855
1856 priv = usb_get_serial_port_data(port);
1857 if (!priv) {
441b62c1 1858 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1859 goto out;
1da177e4
LT		 1860 }
1861
464cbb24 1862 if (urb != port->read_urb)
194343d9 1863 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1da177e4 1864
0fb0aa18 1865 if (status) {
464cbb24
AC		 1866 /* This will happen at close every time so it is a dbg not an
1867 err */
1868 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
4a90f09b 1869 goto out;
1da177e4
LT		 1870 }
1871
22465400
IA		 1872 /* count data bytes, but not status bytes */
1873 countread = urb->actual_length;
dfa5ec79 1874 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
22465400
IA		 1875 spin_lock_irqsave(&priv->rx_lock, flags);
1876 priv->rx_bytes += countread;
1877 spin_unlock_irqrestore(&priv->rx_lock, flags);
1878
c4028958 1879 ftdi_process_read(&priv->rx_work.work);
4a90f09b
AC		 1880out:
1881 tty_kref_put(tty);
1da177e4
LT		 1882} /* ftdi_read_bulk_callback */
1883
1884
464cbb24 1885static void ftdi_process_read(struct work_struct *work)
1da177e4 1886{ /* ftdi_process_read */
c4028958
DH		 1887 struct ftdi_private *priv =
1888 container_of(work, struct ftdi_private, rx_work.work);
1889 struct usb_serial_port *port = priv->port;
1da177e4
LT		 1890 struct urb *urb;
1891 struct tty_struct *tty;
1da177e4 1892 char error_flag;
5c09d144 1893 unsigned char *data;
1da177e4
LT		 1894
1895 int i;
1896 int result;
1897 int need_flip;
1898 int packet_offset;
76854cea 1899 unsigned long flags;
1da177e4 1900
441b62c1 1901 dbg("%s - port %d", __func__, port->number);
1da177e4 1902
95da310e 1903 if (port->port.count <= 0)
1da177e4
LT		 1904 return;
1905
4a90f09b 1906 tty = tty_port_tty_get(&port->port);
1da177e4 1907 if (!tty) {
464cbb24 1908 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1909 return;
1910 }
1911
1912 priv = usb_get_serial_port_data(port);
1913 if (!priv) {
441b62c1 1914 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1915 goto out;
1da177e4
LT		 1916 }
1917
1918 urb = port->read_urb;
1919 if (!urb) {
441b62c1 1920 dbg("%s - bad read_urb pointer - exiting", __func__);
4a90f09b 1921 goto out;
1da177e4
LT		 1922 }
1923
1924 data = urb->transfer_buffer;
1925
76854cea 1926 if (priv->rx_processed) {
441b62c1 1927 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 1928 priv->rx_processed,
1929 urb->actual_length - priv->rx_processed);
1da177e4 1930 } else {
76854cea 1931 /* The first two bytes of every read packet are status */
464cbb24
AC		 1932 if (urb->actual_length > 2)
1933 usb_serial_debug_data(debug, &port->dev, __func__,
1934 urb->actual_length, data);
1935 else
1936 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 1937 }
1da177e4
LT		 1938
1939
1940 /* TO DO -- check for hung up line and handle appropriately: */
1941 /* send hangup */
1942 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1943 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1944
1945 need_flip = 0;
464cbb24
AC		 1946 for (packet_offset = priv->rx_processed;
1947 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
76854cea
IA		 1948 int length;
1949
464cbb24
AC		 1950 /* Compare new line status to the old one, signal if different/
1951 N.B. packet may be processed more than once, but differences
1952 are only processed once. */
00185a60
JL		 1953 char new_status = data[packet_offset + 0] &
1954 FTDI_STATUS_B0_MASK;
1955 if (new_status != priv->prev_status) {
1956 priv->diff_status |=
1957 new_status ^ priv->prev_status;
1958 wake_up_interruptible(&priv->delta_msr_wait);
1959 priv->prev_status = new_status;
1da177e4
LT		 1960 }
1961
8c209e67 1962 length = min_t(u32, PKTSZ, urb->actual_length-packet_offset)-2;
76854cea 1963 if (length < 0) {
194343d9
GKH		 1964 dev_err(&port->dev, "%s - bad packet length: %d\n",
1965 __func__, length+2);
76854cea
IA		 1966 length = 0;
1967 }
1968
76854cea 1969 if (priv->rx_flags & THROTTLED) {
441b62c1 1970 dbg("%s - throttled", __func__);
76854cea
IA		 1971 break;
1972 }
33f0f88f 1973 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 1974 /* break out & wait for throttling/unthrottling to
1975 happen */
441b62c1 1976 dbg("%s - receive room low", __func__);
76854cea
IA		 1977 break;
1978 }
1979
1da177e4
LT		 1980 /* Handle errors and break */
1981 error_flag = TTY_NORMAL;
464cbb24
AC		 1982 /* Although the device uses a bitmask and hence can have
1983 multiple errors on a packet - the order here sets the
1984 priority the error is returned to the tty layer */
1da177e4 1985
464cbb24 1986 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 1987 error_flag = TTY_OVERRUN;
1988 dbg("OVERRRUN error");
1989 }
464cbb24 1990 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 1991 error_flag = TTY_BREAK;
1992 dbg("BREAK received");
1993 }
464cbb24 1994 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 1995 error_flag = TTY_PARITY;
1996 dbg("PARITY error");
1997 }
464cbb24 1998 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 1999 error_flag = TTY_FRAME;
2000 dbg("FRAMING error");
2001 }
76854cea
IA		 2002 if (length > 0) {
2003 for (i = 2; i < length+2; i++) {
5c09d144 2004 /* Note that the error flag is duplicated for
1da177e4
LT		 2005 every character received since we don't know
2006 which character it applied to */
464cbb24
AC		 2007 tty_insert_flip_char(tty,
2008 data[packet_offset + i], error_flag);
1da177e4
LT		 2009 }
2010 need_flip = 1;
2011 }
2012
2013#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2014 /* if a parity error is detected you get status packets forever
2015 until a character is sent without a parity error.
464cbb24
AC		 2016 This doesn't work well since the application receives a
2017 never ending stream of bad data - even though new data
2018 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 2019 However - this might make sense for framing errors and so on
1da177e4
LT		 2020 so I am leaving the code in for now.
2021 */
2022 else {
464cbb24 2023 if (error_flag != TTY_NORMAL) {
1da177e4 2024 dbg("error_flag is not normal");
464cbb24
AC		 2025 /* In this case it is just status - if that is
2026 an error send a bad character */
2027 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 2028 tty_flip_buffer_push(tty);
1da177e4
LT		 2029 tty_insert_flip_char(tty, 0xff, error_flag);
2030 need_flip = 1;
2031 }
2032 }
2033#endif
2034 } /* "for(packet_offset=0..." */
2035
2036 /* Low latency */
464cbb24 2037 if (need_flip)
1da177e4 2038 tty_flip_buffer_push(tty);
1da177e4 2039
76854cea
IA		 2040 if (packet_offset < urb->actual_length) {
2041 /* not completely processed - record progress */
2042 priv->rx_processed = packet_offset;
2043 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2044 __func__, packet_offset,
76854cea
IA		 2045 urb->actual_length - packet_offset);
2046 /* check if we were throttled while processing */
2047 spin_lock_irqsave(&priv->rx_lock, flags);
2048 if (priv->rx_flags & THROTTLED) {
2049 priv->rx_flags |= ACTUALLY_THROTTLED;
2050 spin_unlock_irqrestore(&priv->rx_lock, flags);
2051 dbg("%s - deferring remainder until unthrottled",
441b62c1 2052 __func__);
a9fec710 2053 goto out;
76854cea
IA		 2054 }
2055 spin_unlock_irqrestore(&priv->rx_lock, flags);
2056 /* if the port is closed stop trying to read */
464cbb24 2057 if (port->port.count > 0)
76854cea
IA		 2058 /* delay processing of remainder */
2059 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2060 else
441b62c1 2061 dbg("%s - port is closed", __func__);
4a90f09b 2062 goto out;
76854cea
IA		 2063 }
2064
2065 /* urb is completely processed */
2066 priv->rx_processed = 0;
2067
1da177e4 2068 /* if the port is closed stop trying to read */
464cbb24 2069 if (port->port.count > 0) {
1da177e4 2070 /* Continue trying to always read */
5c09d144 2071 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2072 usb_rcvbulkpipe(port->serial->dev,
2073 port->bulk_in_endpointAddress),
2074 port->read_urb->transfer_buffer,
2075 port->read_urb->transfer_buffer_length,
2076 ftdi_read_bulk_callback, port);
1da177e4
LT		 2077
2078 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2079 if (result)
194343d9
GKH		 2080 dev_err(&port->dev,
2081 "%s - failed resubmitting read urb, error %d\n",
2082 __func__, result);
1da177e4 2083 }
4a90f09b
AC		 2084out:
2085 tty_kref_put(tty);
1da177e4
LT		 2086} /* ftdi_process_read */
2087
2088
95da310e 2089static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2090{
95da310e 2091 struct usb_serial_port *port = tty->driver_data;
1da177e4 2092 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2093 __u16 urb_value = 0;
1da177e4 2094 char buf[1];
5c09d144 2095
1da177e4
LT		 2096 /* break_state = -1 to turn on break, and 0 to turn off break */
2097 /* see drivers/char/tty_io.c to see it used */
2098 /* last_set_data_urb_value NEVER has the break bit set in it */
2099
464cbb24 2100 if (break_state)
1da177e4 2101 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2102 else
5c09d144 2103 urb_value = priv->last_set_data_urb_value;
5c09d144 2104
464cbb24
AC		 2105 if (usb_control_msg(port->serial->dev,
2106 usb_sndctrlpipe(port->serial->dev, 0),
2107 FTDI_SIO_SET_DATA_REQUEST,
2108 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2109 urb_value , priv->interface,
2110 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2111 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2112 "(state was %d)\n", __func__, break_state);
5c09d144 2113 }
1da177e4 2114
464cbb24
AC		 2115 dbg("%s break state is %d - urb is %d", __func__,
2116 break_state, urb_value);
5c09d144 2117
1da177e4
LT		 2118}
2119
2120
2121/* old_termios contains the original termios settings and tty->termios contains
2122 * the new setting to be used
2123 * WARNING: set_termios calls this with old_termios in kernel space
2124 */
2125
95da310e
AC		 2126static void ftdi_set_termios(struct tty_struct *tty,
2127 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2128{ /* ftdi_termios */
2129 struct usb_device *dev = port->serial->dev;
1da177e4 2130 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2131 struct ktermios *termios = tty->termios;
669a6db1 2132 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2133 __u16 urb_value; /* will hold the new flags */
2134 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2135
464cbb24 2136 /* Added for xon/xoff support */
669a6db1 2137 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2138 unsigned char vstop;
2139 unsigned char vstart;
5c09d144 2140
441b62c1 2141 dbg("%s", __func__);
1da177e4 2142
464cbb24
AC		 2143 /* Force baud rate if this device requires it, unless it is set to
2144 B0. */
669a6db1 2145 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2146 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2147 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2148 priv->force_baud);
1da177e4
LT		 2149 }
2150
2151 /* Force RTS-CTS if this device requires it. */
2152 if (priv->force_rtscts) {
441b62c1 2153 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2154 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2155 }
2156
669a6db1 2157 cflag = termios->c_cflag;
1da177e4 2158
5c09d144
DB		 2159 /* FIXME -For this cut I don't care if the line is really changing or
2160 not - so just do the change regardless - should be able to
1da177e4 2161 compare old_termios and tty->termios */
5c09d144 2162 /* NOTE These routines can get interrupted by
464cbb24
AC		 2163 ftdi_sio_read_bulk_callback - need to examine what this means -
2164 don't see any problems yet */
5c09d144 2165
1da177e4 2166 /* Set number of data bits, parity, stop bits */
5c09d144 2167
669a6db1
AC		 2168 termios->c_cflag &= ~CMSPAR;
2169
1da177e4
LT		 2170 urb_value = 0;
2171 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2172 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2173 urb_value |= (cflag & PARENB ?
2174 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2175 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2176 FTDI_SIO_SET_DATA_PARITY_NONE);
2177 if (cflag & CSIZE) {
2178 switch (cflag & CSIZE) {
2179 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2180 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2181 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2182 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2183 default:
194343d9 2184 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2185 }
2186 }
2187
464cbb24
AC		 2188 /* This is needed by the break command since it uses the same command
2189 - but is or'ed with this value */
1da177e4 2190 priv->last_set_data_urb_value = urb_value;
5c09d144 2191
1da177e4 2192 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2193 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2194 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2195 urb_value , priv->interface,
279e1545 2196 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2197 dev_err(&port->dev, "%s FAILED to set "
2198 "databits/stopbits/parity\n", __func__);
5c09d144 2199 }
1da177e4
LT		 2200
2201 /* Now do the baudrate */
464cbb24 2202 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2203 /* Disable flow control */
2204 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2205 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2206 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2207 0, priv->interface,
1da177e4 2208 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2209 dev_err(&port->dev,
2210 "%s error from disable flowcontrol urb\n",
2211 __func__);
5c09d144 2212 }
1da177e4 2213 /* Drop RTS and DTR */
74ede0ff 2214 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2215 } else {
2216 /* set the baudrate determined before */
464cbb24 2217 if (change_speed(tty, port))
194343d9
GKH		 2218 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2219 __func__);
72a755fc 2220 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2221 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2222 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2223 }
2224
2225 /* Set flow control */
2226 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2227 if (cflag & CRTSCTS) {
441b62c1 2228 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2229 if (usb_control_msg(dev,
1da177e4 2230 usb_sndctrlpipe(dev, 0),
5c09d144 2231 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2232 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2233 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2234 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2235 dev_err(&port->dev,
2236 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2237 }
2238
2239 } else {
1da177e4
LT		 2240 /*
2241 * Xon/Xoff code
2242 *
464cbb24
AC		 2243 * Check the IXOFF status in the iflag component of the
2244 * termios structure. If IXOFF is not set, the pre-xon/xoff
2245 * code is executed.
2246 */
1da177e4 2247 if (iflag & IXOFF) {
464cbb24
AC		 2248 dbg("%s request to enable xonxoff iflag=%04x",
2249 __func__, iflag);
2250 /* Try to enable the XON/XOFF on the ftdi_sio
2251 * Set the vstart and vstop -- could have been done up
2252 * above where a lot of other dereferencing is done but
2253 * that would be very inefficient as vstart and vstop
2254 * are not always needed.
2255 */
669a6db1
AC		 2256 vstart = termios->c_cc[VSTART];
2257 vstop = termios->c_cc[VSTOP];
464cbb24 2258 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2259
2260 if (usb_control_msg(dev,
2261 usb_sndctrlpipe(dev, 0),
2262 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2263 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2264 urb_value , (FTDI_SIO_XON_XOFF_HS
2265 | priv->interface),
2266 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2267 dev_err(&port->dev, "urb failed to set to "
2268 "xon/xoff flow control\n");
1da177e4
LT		 2269 }
2270 } else {
464cbb24
AC		 2271 /* else clause to only run if cflag ! CRTSCTS and iflag
2272 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2273 * stack - not by device */
441b62c1 2274 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2275 if (usb_control_msg(dev,
1da177e4 2276 usb_sndctrlpipe(dev, 0),
5c09d144 2277 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2278 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2279 0, priv->interface,
1da177e4 2280 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2281 dev_err(&port->dev,
2282 "urb failed to clear flow control\n");
5c09d144 2283 }
1da177e4 2284 }
5c09d144 2285
1da177e4
LT		 2286 }
2287 return;
95da310e 2288}
1da177e4 2289
95da310e 2290static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2291{
95da310e 2292 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2293 struct ftdi_private *priv = usb_get_serial_port_data(port);
2294 unsigned char buf[2];
2295 int ret;
2296
441b62c1 2297 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2298 switch (priv->chip_type) {
2299 case SIO:
2300 /* Request the status from the device */
464cbb24
AC		 2301 ret = usb_control_msg(port->serial->dev,
2302 usb_rcvctrlpipe(port->serial->dev, 0),
2303 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2304 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2305 0, 0,
2306 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2307 if (ret < 0)
464cbb24 2308 return ret;
1da177e4
LT		 2309 break;
2310 case FT8U232AM:
2311 case FT232BM:
2312 case FT2232C:
ed6e5282 2313 case FT232RL:
464cbb24
AC		 2314 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2315 value) - in the same format as the data returned from the in
2316 point */
2317 ret = usb_control_msg(port->serial->dev,
2318 usb_rcvctrlpipe(port->serial->dev, 0),
2319 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2320 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2321 0, priv->interface,
2322 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2323 if (ret < 0)
464cbb24 2324 return ret;
1da177e4
LT		 2325 break;
2326 default:
2327 return -EFAULT;
1da177e4 2328 }
5c09d144 2329
1da177e4
LT		 2330 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2331 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2332 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2333 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2334 priv->last_dtr_rts;
1da177e4
LT		 2335}
2336
464cbb24 2337static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2338 unsigned int set, unsigned int clear)
1da177e4 2339{
95da310e 2340 struct usb_serial_port *port = tty->driver_data;
441b62c1 2341 dbg("%s TIOCMSET", __func__);
74ede0ff 2342 return update_mctrl(port, set, clear);
1da177e4
LT		 2343}
2344
2345
464cbb24
AC		 2346static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2347 unsigned int cmd, unsigned long arg)
1da177e4 2348{
95da310e 2349 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2350 struct ftdi_private *priv = usb_get_serial_port_data(port);
2351
441b62c1 2352 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2353
2354 /* Based on code from acm.c and others */
2355 switch (cmd) {
2356
1da177e4 2357 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2358 return get_serial_info(port,
2359 (struct serial_struct __user *) arg);
1da177e4
LT		 2360
2361 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2362 return set_serial_info(tty, port,
2363 (struct serial_struct __user *) arg);
1da177e4
LT		 2364
2365 /*
2366 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2367 * - mask passed in arg for lines of interest
2368 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2369 * Caller should use TIOCGICOUNT to see which one it was.
2370 *
2371 * This code is borrowed from linux/drivers/char/serial.c
2372 */
2373 case TIOCMIWAIT:
2374 while (priv != NULL) {
2375 interruptible_sleep_on(&priv->delta_msr_wait);
2376 /* see if a signal did it */
2377 if (signal_pending(current))
2378 return -ERESTARTSYS;
2379 else {
2380 char diff = priv->diff_status;
2381
464cbb24 2382 if (diff == 0)
1da177e4 2383 return -EIO; /* no change => error */
1da177e4
LT		 2384
2385 /* Consume all events */
2386 priv->diff_status = 0;
2387
464cbb24
AC		 2388 /* Return 0 if caller wanted to know about
2389 these bits */
2390 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2391 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2392 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2393 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2394 return 0;
2395 }
2396 /*
464cbb24
AC		 2397 * Otherwise caller can't care less about what
2398 * happened,and so we continue to wait for more
2399 * events.
1da177e4
LT		 2400 */
2401 }
2402 }
95da310e 2403 return 0;
1da177e4
LT		 2404 default:
2405 break;
1da177e4 2406 }
464cbb24
AC		 2407 /* This is not necessarily an error - turns out the higher layers
2408 * will do some ioctls themselves (see comment above)
1da177e4 2409 */
441b62c1 2410 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2411 return -ENOIOCTLCMD;
2412}
1da177e4 2413
95da310e 2414static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2415{
95da310e 2416 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2417 struct ftdi_private *priv = usb_get_serial_port_data(port);
2418 unsigned long flags;
2419
441b62c1 2420 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2421
2422 spin_lock_irqsave(&priv->rx_lock, flags);
2423 priv->rx_flags |= THROTTLED;
2424 spin_unlock_irqrestore(&priv->rx_lock, flags);
2425}
2426
2427
95da310e 2428static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2429{
95da310e 2430 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2431 struct ftdi_private *priv = usb_get_serial_port_data(port);
2432 int actually_throttled;
2433 unsigned long flags;
2434
441b62c1 2435 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2436
2437 spin_lock_irqsave(&priv->rx_lock, flags);
2438 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2439 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2440 spin_unlock_irqrestore(&priv->rx_lock, flags);
2441
2442 if (actually_throttled)
c4028958 2443 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2444}
2445
464cbb24 2446static int __init ftdi_init(void)
1da177e4
LT		 2447{
2448 int retval;
2449
441b62c1 2450 dbg("%s", __func__);
fdcb0a0f
IA		 2451 if (vendor > 0 && product > 0) {
2452 /* Add user specified VID/PID to reserved element of table. */
2453 int i;
2454 for (i = 0; id_table_combined[i].idVendor; i++)
2455 ;
2456 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2457 id_table_combined[i].idVendor = vendor;
2458 id_table_combined[i].idProduct = product;
2459 }
8f977e42 2460 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2461 if (retval)
8f977e42 2462 goto failed_sio_register;
1da177e4 2463 retval = usb_register(&ftdi_driver);
5c09d144 2464 if (retval)
1da177e4
LT		 2465 goto failed_usb_register;
2466
c197a8db
GKH		 2467 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2468 DRIVER_DESC "\n");
1da177e4
LT		 2469 return 0;
2470failed_usb_register:
8f977e42
IA		 2471 usb_serial_deregister(&ftdi_sio_device);
2472failed_sio_register:
1da177e4
LT		 2473 return retval;
2474}
2475
2476
464cbb24 2477static void __exit ftdi_exit(void)
1da177e4
LT		 2478{
2479
441b62c1 2480 dbg("%s", __func__);
1da177e4 2481
464cbb24
AC		 2482 usb_deregister(&ftdi_driver);
2483 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2484
2485}
2486
2487
2488module_init(ftdi_init);
2489module_exit(ftdi_exit);
2490
464cbb24
AC		 2491MODULE_AUTHOR(DRIVER_AUTHOR);
2492MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2493MODULE_LICENSE("GPL");
2494
2495module_param(debug, bool, S_IRUGO | S_IWUSR);
2496MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2497module_param(vendor, ushort, 0);
2498MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2499 __MODULE_STRING(FTDI_VID)")");
2500module_param(product, ushort, 0);
68265043 2501MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2502
Clone of davem's net-next-2.6 tree