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Revert USB: usbfs: deprecate and hide option for !embedded
[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 */
094c2e6d 50#define DRIVER_VERSION "v1.5.0"
1da177e4
LT		 51#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
52#define DRIVER_DESC "USB FTDI Serial Converters Driver"
53
54static int debug;
fdcb0a0f
IA		 55static __u16 vendor = FTDI_VID;
56static __u16 product;
1da177e4 57
0ffbbe25 58struct ftdi_private {
c45d6320 59 struct kref kref;
0ffbbe25 60 ftdi_chip_type_t chip_type;
464cbb24 61 /* type of device, either SIO or FT8U232AM */
0ffbbe25 62 int baud_base; /* baud base clock for divisor setting */
464cbb24
AC		 63 int custom_divisor; /* custom_divisor kludge, this is for
64 baud_base (different from what goes to the
65 chip!) */
0ffbbe25 66 __u16 last_set_data_urb_value ;
464cbb24
AC		 67 /* the last data state set - needed for doing
68 * a break
69 */
70 int write_offset; /* This is the offset in the usb data block to
71 * write the serial data - it varies between
72 * devices
0ffbbe25
ON		 73 */
74 int flags; /* some ASYNC_xxxx flags are supported */
75 unsigned long last_dtr_rts; /* saved modem control outputs */
464cbb24 76 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
0ffbbe25
ON		 77 char prev_status, diff_status; /* Used for TIOCMIWAIT */
78 __u8 rx_flags; /* receive state flags (throttling) */
79 spinlock_t rx_lock; /* spinlock for receive state */
80 struct delayed_work rx_work;
81 struct usb_serial_port *port;
82 int rx_processed;
83 unsigned long rx_bytes;
84
094c2e6d
MA		 85 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface
86 (0 for FT232/245) */
0ffbbe25 87
464cbb24
AC		 88 speed_t force_baud; /* if non-zero, force the baud rate to
89 this value */
90 int force_rtscts; /* if non-zero, force RTS-CTS to always
91 be enabled */
0ffbbe25 92
557aaa7f 93 unsigned int latency; /* latency setting in use */
0ffbbe25
ON		 94 spinlock_t tx_lock; /* spinlock for transmit state */
95 unsigned long tx_bytes;
96 unsigned long tx_outstanding_bytes;
97 unsigned long tx_outstanding_urbs;
895f28ba 98 unsigned short max_packet_size;
0ffbbe25
ON		 99};
100
8f977e42
IA		 101/* struct ftdi_sio_quirk is used by devices requiring special attention. */
102struct ftdi_sio_quirk {
fa91d43b 103 int (*probe)(struct usb_serial *);
464cbb24
AC		 104 /* Special settings for probed ports. */
105 void (*port_probe)(struct ftdi_private *);
8f977e42
IA		 106};
107
464cbb24
AC		 108static int ftdi_jtag_probe(struct usb_serial *serial);
109static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
110static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
111static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 112
20734345
HW		 113static struct ftdi_sio_quirk ftdi_jtag_quirk = {
114 .probe = ftdi_jtag_probe,
fa91d43b
TL		 115};
116
546d7eec
KV		 117static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
118 .probe = ftdi_mtxorb_hack_setup,
119};
120
8f977e42 121static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 122 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 123};
124
125static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 126 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 127};
128
129/*
130 * The 8U232AM has the same API as the sio except for:
131 * - it can support MUCH higher baudrates; up to:
132 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
133 * o 230400 at 12MHz
134 * so .. 8U232AM's baudrate setting codes are different
135 * - it has a two byte status code.
136 * - it returns characters every 16ms (the FTDI does it every 40ms)
137 *
138 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
139 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
140 * combinations in both tables.
8f977e42
IA		 141 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
142 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 143 */
144
145
1da177e4
LT		 146
147static struct usb_device_id id_table_combined [] = {
2011e924
JD		 148 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
01ba0856 150 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
6e1ab3ed
PM		 151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 159 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 160 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 161 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 162 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 163 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 164 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 167 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 168 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
094c2e6d 169 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
c0f8d561 170 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 171 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 172 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
1da177e4
LT		 173 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
174 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
f2ee6955 175 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
1da177e4
LT		 176 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
178 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
185 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 187 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
191 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
b34efeea 194 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
464cbb24
AC		 195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 235 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 241 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 281 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 283 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 285 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 287 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 289 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 291 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 459 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 460 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 461 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 462 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
510 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
511 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 512 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
513 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
514 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
515 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 516 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
517 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
518 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
519 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 536 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 537 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 538 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 540 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 541 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 542 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
546 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 550 /*
42f8aa94
PS		 551 * Due to many user requests for multiple ELV devices we enable
552 * them by default.
e6ac4a40 553 */
42f8aa94
PS		 554 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 572 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 573 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 574 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
5c09d144
DB		 575 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
576 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
577 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
578 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
579 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
580 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
581 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 582 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
9d37ff64
JC		 583 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
584 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
585 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
1da177e4
LT		 586 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
587 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
588 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
589 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 590 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 591 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
c3d36c45 592 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
ef31fec0 593 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 594 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 595 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
596 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
597 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
598 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 599 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
600 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 601 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
602 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
603 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
604 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
605 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
606 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
607 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
608 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 609 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 610 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 611 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
612 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 613 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
614 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 615 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
617 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 619 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
620 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 621 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 622 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
623 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 624 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
625 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 626 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 627 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 628 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 629 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 630 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
631 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 632 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 633 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 634 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 635 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
636 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 637 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 638 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 639 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 640 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 641 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 642 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 643 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 644 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 645 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 646 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 647 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
648 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
649 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 650 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
822c7ef4 651 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 652 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 653 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 654 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 655 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 656 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 657 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 658 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
659 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
660 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
661 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
662 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 663 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
664 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
665 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
666 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 667 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 668 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 669 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
96285cb8
GC		 670 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
671 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 672 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 673 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
e38c2874 674 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) },
7f82b6dd
AW		 675 { USB_DEVICE(ATMEL_VID, STK541_PID) },
676 { USB_DEVICE(DE_VID, STB_PID) },
677 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 678 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
679 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 680 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 681 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
682 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
d46130ab 683 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
fdcb0a0f
IA		 684 { }, /* Optional parameter entry */
685 { } /* Terminating entry */
1da177e4
LT		 686};
687
464cbb24 688MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 689
690static struct usb_driver ftdi_driver = {
691 .name = "ftdi_sio",
692 .probe = usb_serial_probe,
693 .disconnect = usb_serial_disconnect,
694 .id_table = id_table_combined,
5c09d144 695 .no_dynamic_id = 1,
1da177e4
LT		 696};
697
4c4c9432 698static const char *ftdi_chip_name[] = {
1da177e4
LT		 699 [SIO] = "SIO", /* the serial part of FT8U100AX */
700 [FT8U232AM] = "FT8U232AM",
701 [FT232BM] = "FT232BM",
702 [FT2232C] = "FT2232C",
d8b21606 703 [FT232RL] = "FT232RL",
094c2e6d
MA		 704 [FT2232H] = "FT2232H",
705 [FT4232H] = "FT4232H"
1da177e4
LT		 706};
707
708
709/* Constants for read urb and write urb */
710#define BUFSZ 512
1da177e4
LT		 711
712/* rx_flags */
713#define THROTTLED 0x01
714#define ACTUALLY_THROTTLED 0x02
715
1da177e4
LT		 716/* Used for TIOCMIWAIT */
717#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
718#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
719/* End TIOCMIWAIT */
720
bbc5d276
RK		 721#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
722 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 723
724/* function prototypes for a FTDI serial converter */
464cbb24
AC		 725static int ftdi_sio_probe(struct usb_serial *serial,
726 const struct usb_device_id *id);
464cbb24
AC		 727static int ftdi_sio_port_probe(struct usb_serial_port *port);
728static int ftdi_sio_port_remove(struct usb_serial_port *port);
729static int ftdi_open(struct tty_struct *tty,
730 struct usb_serial_port *port, struct file *filp);
335f8514
AC		 731static void ftdi_close(struct usb_serial_port *port);
732static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 733static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
734 const unsigned char *buf, int count);
735static int ftdi_write_room(struct tty_struct *tty);
736static int ftdi_chars_in_buffer(struct tty_struct *tty);
737static void ftdi_write_bulk_callback(struct urb *urb);
738static void ftdi_read_bulk_callback(struct urb *urb);
739static void ftdi_process_read(struct work_struct *work);
740static void ftdi_set_termios(struct tty_struct *tty,
741 struct usb_serial_port *port, struct ktermios *old);
742static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
743static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
744 unsigned int set, unsigned int clear);
745static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
746 unsigned int cmd, unsigned long arg);
747static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
748static void ftdi_throttle(struct tty_struct *tty);
749static void ftdi_unthrottle(struct tty_struct *tty);
750
751static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
752static unsigned short int ftdi_232am_baud_to_divisor(int baud);
753static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
754static __u32 ftdi_232bm_baud_to_divisor(int baud);
094c2e6d
MA		 755static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
756static __u32 ftdi_2232h_baud_to_divisor(int baud);
1da177e4 757
ea65370d 758static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 759 .driver = {
760 .owner = THIS_MODULE,
269bda1c 761 .name = "ftdi_sio",
18fcac35 762 },
269bda1c 763 .description = "FTDI USB Serial Device",
d9b1b787 764 .usb_driver = &ftdi_driver ,
8f977e42 765 .id_table = id_table_combined,
1da177e4 766 .num_ports = 1,
8f977e42 767 .probe = ftdi_sio_probe,
12bdbe03
JR		 768 .port_probe = ftdi_sio_port_probe,
769 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 770 .open = ftdi_open,
771 .close = ftdi_close,
335f8514 772 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 773 .throttle = ftdi_throttle,
774 .unthrottle = ftdi_unthrottle,
775 .write = ftdi_write,
776 .write_room = ftdi_write_room,
777 .chars_in_buffer = ftdi_chars_in_buffer,
778 .read_bulk_callback = ftdi_read_bulk_callback,
779 .write_bulk_callback = ftdi_write_bulk_callback,
780 .tiocmget = ftdi_tiocmget,
781 .tiocmset = ftdi_tiocmset,
782 .ioctl = ftdi_ioctl,
783 .set_termios = ftdi_set_termios,
784 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 785};
786
1da177e4
LT		 787
788#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 789#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 790
791/* High and low are for DTR, RTS etc etc */
792#define HIGH 1
793#define LOW 0
794
22465400
IA		 795/* number of outstanding urbs to prevent userspace DoS from happening */
796#define URB_UPPER_LIMIT 42
797
1da177e4
LT		 798/*
799 * ***************************************************************************
fa91d43b 800 * Utility functions
1da177e4
LT		 801 * ***************************************************************************
802 */
803
804static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
805{
806 unsigned short int divisor;
464cbb24
AC		 807 /* divisor shifted 3 bits to the left */
808 int divisor3 = base / 2 / baud;
809 if ((divisor3 & 0x7) == 7)
810 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 811 divisor = divisor3 >> 3;
812 divisor3 &= 0x7;
464cbb24
AC		 813 if (divisor3 == 1)
814 divisor |= 0xc000;
815 else if (divisor3 >= 4)
816 divisor |= 0x4000;
817 else if (divisor3 != 0)
818 divisor |= 0x8000;
819 else if (divisor == 1)
820 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 821 return divisor;
822}
823
824static unsigned short int ftdi_232am_baud_to_divisor(int baud)
825{
464cbb24 826 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 827}
828
829static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
830{
831 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
832 __u32 divisor;
464cbb24
AC		 833 /* divisor shifted 3 bits to the left */
834 int divisor3 = base / 2 / baud;
1da177e4
LT		 835 divisor = divisor3 >> 3;
836 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
837 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 838 if (divisor == 1)
839 divisor = 0;
840 else if (divisor == 0x4001)
841 divisor = 1;
1da177e4
LT		 842 return divisor;
843}
844
845static __u32 ftdi_232bm_baud_to_divisor(int baud)
846{
464cbb24 847 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 848}
849
094c2e6d
MA		 850static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
851{
852 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
853 __u32 divisor;
854 int divisor3;
855
856 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
857 divisor3 = (base / 10 / baud) * 8;
858
859 divisor = divisor3 >> 3;
860 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
861 /* Deal with special cases for highest baud rates. */
862 if (divisor == 1)
863 divisor = 0;
864 else if (divisor == 0x4001)
865 divisor = 1;
866 /*
867 * Set this bit to turn off a divide by 2.5 on baud rate generator
868 * This enables baud rates up to 12Mbaud but cannot reach below 1200
869 * baud with this bit set
870 */
871 divisor |= 0x00020000;
872 return divisor;
873}
874
875static __u32 ftdi_2232h_baud_to_divisor(int baud)
876{
877 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
878}
879
74ede0ff
IA		 880#define set_mctrl(port, set) update_mctrl((port), (set), 0)
881#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
882
464cbb24
AC		 883static int update_mctrl(struct usb_serial_port *port, unsigned int set,
884 unsigned int clear)
1da177e4
LT		 885{
886 struct ftdi_private *priv = usb_get_serial_port_data(port);
887 char *buf;
74ede0ff 888 unsigned urb_value;
1da177e4 889 int rv;
1da177e4 890
74ede0ff 891 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 892 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 893 return 0; /* no change */
894 }
1da177e4 895
1da177e4 896 buf = kmalloc(1, GFP_NOIO);
9b0f2582 897 if (!buf)
1da177e4 898 return -ENOMEM;
74ede0ff
IA		 899
900 clear &= ~set; /* 'set' takes precedence over 'clear' */
901 urb_value = 0;
902 if (clear & TIOCM_DTR)
903 urb_value |= FTDI_SIO_SET_DTR_LOW;
904 if (clear & TIOCM_RTS)
905 urb_value |= FTDI_SIO_SET_RTS_LOW;
906 if (set & TIOCM_DTR)
907 urb_value |= FTDI_SIO_SET_DTR_HIGH;
908 if (set & TIOCM_RTS)
909 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 910 rv = usb_control_msg(port->serial->dev,
911 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 912 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 913 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 914 urb_value, priv->interface,
1da177e4
LT		 915 buf, 0, WDR_TIMEOUT);
916
917 kfree(buf);
74ede0ff 918 if (rv < 0) {
43b11d33 919 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 920 __func__,
74ede0ff
IA		 921 (set & TIOCM_DTR) ? "HIGH" :
922 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
923 (set & TIOCM_RTS) ? "HIGH" :
924 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
925 } else {
441b62c1 926 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 927 (set & TIOCM_DTR) ? "HIGH" :
928 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
929 (set & TIOCM_RTS) ? "HIGH" :
930 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 931 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 932 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
933 }
1da177e4
LT		 934 return rv;
935}
936
937
464cbb24
AC		 938static __u32 get_ftdi_divisor(struct tty_struct *tty,
939 struct usb_serial_port *port)
1da177e4
LT		 940{ /* get_ftdi_divisor */
941 struct ftdi_private *priv = usb_get_serial_port_data(port);
942 __u32 div_value = 0;
943 int div_okay = 1;
944 int baud;
945
946 /*
464cbb24
AC		 947 * The logic involved in setting the baudrate can be cleanly split into
948 * 3 steps.
1da177e4 949 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 950 * 2. If these are not enough, you can set any speed using alt_speed as
951 * follows:
1da177e4
LT		 952 * - set tty->termios->c_cflag speed to B38400
953 * - set your real speed in tty->alt_speed; it gets ignored when
954 * alt_speed==0, (or)
464cbb24
AC		 955 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
956 * follows:
957 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
958 * this just sets alt_speed to (HI: 57600, VHI: 115200,
959 * SHI: 230400, WARP: 460800)
1da177e4
LT		 960 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
961 * 3. You can also set baud rate by setting custom divisor as follows
962 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 963 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
964 * follows:
1da177e4
LT		 965 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
966 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 967 * ** Step 3 is done courtesy of code borrowed from serial.c
968 * I should really spend some time and separate + move this common
969 * code to serial.c, it is replicated in nearly every serial driver
970 * you see.
1da177e4
LT		 971 */
972
464cbb24
AC		 973 /* 1. Get the baud rate from the tty settings, this observes
974 alt_speed hack */
1da177e4 975
95da310e 976 baud = tty_get_baud_rate(tty);
441b62c1 977 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 978
464cbb24
AC		 979 /* 2. Observe async-compatible custom_divisor hack, update baudrate
980 if needed */
1da177e4
LT		 981
982 if (baud == 38400 &&
983 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
984 (priv->custom_divisor)) {
985 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 986 dbg("%s - custom divisor %d sets baud rate to %d",
987 __func__, priv->custom_divisor, baud);
1da177e4
LT		 988 }
989
990 /* 3. Convert baudrate to device-specific divisor */
991
464cbb24
AC		 992 if (!baud)
993 baud = 9600;
994 switch (priv->chip_type) {
1da177e4 995 case SIO: /* SIO chip */
464cbb24 996 switch (baud) {
1da177e4
LT		 997 case 300: div_value = ftdi_sio_b300; break;
998 case 600: div_value = ftdi_sio_b600; break;
999 case 1200: div_value = ftdi_sio_b1200; break;
1000 case 2400: div_value = ftdi_sio_b2400; break;
1001 case 4800: div_value = ftdi_sio_b4800; break;
1002 case 9600: div_value = ftdi_sio_b9600; break;
1003 case 19200: div_value = ftdi_sio_b19200; break;
1004 case 38400: div_value = ftdi_sio_b38400; break;
1005 case 57600: div_value = ftdi_sio_b57600; break;
1006 case 115200: div_value = ftdi_sio_b115200; break;
1007 } /* baud */
1008 if (div_value == 0) {
464cbb24
AC		 1009 dbg("%s - Baudrate (%d) requested is not supported",
1010 __func__, baud);
1da177e4 1011 div_value = ftdi_sio_b9600;
bd5e47cc 1012 baud = 9600;
1da177e4
LT		 1013 div_okay = 0;
1014 }
1015 break;
1016 case FT8U232AM: /* 8U232AM chip */
1017 if (baud <= 3000000) {
1018 div_value = ftdi_232am_baud_to_divisor(baud);
1019 } else {
464cbb24 1020 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 1021 baud = 9600;
1da177e4
LT		 1022 div_value = ftdi_232am_baud_to_divisor(9600);
1023 div_okay = 0;
1024 }
1025 break;
1026 case FT232BM: /* FT232BM chip */
1027 case FT2232C: /* FT2232C chip */
3b009c63 1028 case FT232RL:
1da177e4
LT		 1029 if (baud <= 3000000) {
1030 div_value = ftdi_232bm_baud_to_divisor(baud);
1031 } else {
464cbb24 1032 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 1033 div_value = ftdi_232bm_baud_to_divisor(9600);
1034 div_okay = 0;
669a6db1 1035 baud = 9600;
1da177e4
LT		 1036 }
1037 break;
094c2e6d
MA		 1038 case FT2232H: /* FT2232H chip */
1039 case FT4232H: /* FT4232H chip */
1040 if ((baud <= 12000000) & (baud >= 1200)) {
1041 div_value = ftdi_2232h_baud_to_divisor(baud);
1042 } else if (baud < 1200) {
1043 div_value = ftdi_232bm_baud_to_divisor(baud);
1044 } else {
1045 dbg("%s - Baud rate too high!", __func__);
1046 div_value = ftdi_232bm_baud_to_divisor(9600);
1047 div_okay = 0;
1048 baud = 9600;
1049 }
1050 break;
1da177e4
LT		 1051 } /* priv->chip_type */
1052
1053 if (div_okay) {
1054 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1055 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1056 ftdi_chip_name[priv->chip_type]);
1057 }
1058
95da310e 1059 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1060 return div_value;
1da177e4
LT		 1061}
1062
95da310e
AC		 1063static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1064{
1065 struct ftdi_private *priv = usb_get_serial_port_data(port);
1066 char *buf;
464cbb24 1067 __u16 urb_value;
95da310e
AC		 1068 __u16 urb_index;
1069 __u32 urb_index_value;
1070 int rv;
1071
1072 buf = kmalloc(1, GFP_NOIO);
1073 if (!buf)
1074 return -ENOMEM;
1075
1076 urb_index_value = get_ftdi_divisor(tty, port);
1077 urb_value = (__u16)urb_index_value;
1078 urb_index = (__u16)(urb_index_value >> 16);
1079 if (priv->interface) { /* FT2232C */
1080 urb_index = (__u16)((urb_index << 8) | priv->interface);
1081 }
1082
1083 rv = usb_control_msg(port->serial->dev,
1084 usb_sndctrlpipe(port->serial->dev, 0),
1085 FTDI_SIO_SET_BAUDRATE_REQUEST,
1086 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1087 urb_value, urb_index,
1088 buf, 0, WDR_SHORT_TIMEOUT);
1089
1090 kfree(buf);
1091 return rv;
1092}
1093
557aaa7f
AC		 1094static int write_latency_timer(struct usb_serial_port *port)
1095{
1096 struct ftdi_private *priv = usb_get_serial_port_data(port);
1097 struct usb_device *udev = port->serial->dev;
1098 char buf[1];
1099 int rv = 0;
1100 int l = priv->latency;
1101
1102 if (priv->flags & ASYNC_LOW_LATENCY)
1103 l = 1;
1104
1105 dbg("%s: setting latency timer = %i", __func__, l);
1106
1107 rv = usb_control_msg(udev,
1108 usb_sndctrlpipe(udev, 0),
1109 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1110 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1111 l, priv->interface,
1112 buf, 0, WDR_TIMEOUT);
95da310e 1113
557aaa7f
AC		 1114 if (rv < 0)
1115 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1116 return rv;
1117}
1118
1119static int read_latency_timer(struct usb_serial_port *port)
1120{
1121 struct ftdi_private *priv = usb_get_serial_port_data(port);
1122 struct usb_device *udev = port->serial->dev;
1123 unsigned short latency = 0;
1124 int rv = 0;
1125
1126
1127 dbg("%s", __func__);
1128
1129 rv = usb_control_msg(udev,
1130 usb_rcvctrlpipe(udev, 0),
1131 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1132 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1133 0, priv->interface,
1134 (char *) &latency, 1, WDR_TIMEOUT);
1135
1136 if (rv < 0) {
1137 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1138 return -EIO;
1139 }
1140 return latency;
1141}
1da177e4 1142
464cbb24
AC		 1143static int get_serial_info(struct usb_serial_port *port,
1144 struct serial_struct __user *retinfo)
1da177e4
LT		 1145{
1146 struct ftdi_private *priv = usb_get_serial_port_data(port);
1147 struct serial_struct tmp;
1148
1149 if (!retinfo)
1150 return -EFAULT;
1151 memset(&tmp, 0, sizeof(tmp));
1152 tmp.flags = priv->flags;
1153 tmp.baud_base = priv->baud_base;
1154 tmp.custom_divisor = priv->custom_divisor;
1155 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1156 return -EFAULT;
1157 return 0;
1158} /* get_serial_info */
1159
1160
95da310e 1161static int set_serial_info(struct tty_struct *tty,
464cbb24 1162 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1163{ /* set_serial_info */
1164 struct ftdi_private *priv = usb_get_serial_port_data(port);
1165 struct serial_struct new_serial;
1166 struct ftdi_private old_priv;
1167
1168 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1169 return -EFAULT;
6b447f04
AC		 1170
1171 lock_kernel();
464cbb24 1172 old_priv = *priv;
1da177e4
LT		 1173
1174 /* Do error checking and permission checking */
1175
1176 if (!capable(CAP_SYS_ADMIN)) {
1177 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1178 (priv->flags & ~ASYNC_USR_MASK))) {
1179 unlock_kernel();
1da177e4 1180 return -EPERM;
64905b48 1181 }
1da177e4
LT		 1182 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1183 (new_serial.flags & ASYNC_USR_MASK));
1184 priv->custom_divisor = new_serial.custom_divisor;
1185 goto check_and_exit;
1186 }
1187
1188 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1189 (new_serial.baud_base < 9600)) {
1190 unlock_kernel();
1da177e4 1191 return -EINVAL;
6b447f04 1192 }
1da177e4
LT		 1193
1194 /* Make the changes - these are privileged changes! */
1195
1196 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1197 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1198 priv->custom_divisor = new_serial.custom_divisor;
1199
95da310e 1200 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
557aaa7f 1201 write_latency_timer(port);
1da177e4
LT		 1202
1203check_and_exit:
1204 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1205 (priv->flags & ASYNC_SPD_MASK)) {
1206 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1207 tty->alt_speed = 57600;
1da177e4 1208 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1209 tty->alt_speed = 115200;
1da177e4 1210 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1211 tty->alt_speed = 230400;
1da177e4 1212 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1213 tty->alt_speed = 460800;
1da177e4 1214 else
95da310e 1215 tty->alt_speed = 0;
1da177e4
LT		 1216 }
1217 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1218 (priv->flags & ASYNC_SPD_MASK)) ||
1219 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1220 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1221 unlock_kernel();
95da310e 1222 change_speed(tty, port);
1da177e4 1223 }
6b447f04
AC		 1224 else
1225 unlock_kernel();
95da310e 1226 return 0;
1da177e4
LT		 1227
1228} /* set_serial_info */
1229
1230
8f977e42
IA		 1231/* Determine type of FTDI chip based on USB config and descriptor. */
1232static void ftdi_determine_type(struct usb_serial_port *port)
1233{
1234 struct ftdi_private *priv = usb_get_serial_port_data(port);
1235 struct usb_serial *serial = port->serial;
1236 struct usb_device *udev = serial->dev;
1237 unsigned version;
1238 unsigned interfaces;
1239
1240 /* Assume it is not the original SIO device for now. */
f5e09b7c 1241 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1242 priv->write_offset = 0;
1243
1244 version = le16_to_cpu(udev->descriptor.bcdDevice);
1245 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1246 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1247 version, interfaces);
1248 if (interfaces > 1) {
1249 int inter;
1250
094c2e6d
MA		 1251 /* Multiple interfaces.*/
1252 if (version == 0x0800) {
1253 priv->chip_type = FT4232H;
1254 /* Hi-speed - baud clock runs at 120MHz */
1255 priv->baud_base = 120000000 / 2;
1256 } else if (version == 0x0700) {
1257 priv->chip_type = FT2232H;
1258 /* Hi-speed - baud clock runs at 120MHz */
1259 priv->baud_base = 120000000 / 2;
1260 } else
1261 priv->chip_type = FT2232C;
1262
8f977e42
IA		 1263 /* Determine interface code. */
1264 inter = serial->interface->altsetting->desc.bInterfaceNumber;
094c2e6d
MA		 1265 if (inter == 0) {
1266 priv->interface = INTERFACE_A;
1267 } else if (inter == 1) {
1268 priv->interface = INTERFACE_B;
1269 } else if (inter == 2) {
1270 priv->interface = INTERFACE_C;
1271 } else if (inter == 3) {
1272 priv->interface = INTERFACE_D;
1273 }
8f977e42
IA		 1274 /* BM-type devices have a bug where bcdDevice gets set
1275 * to 0x200 when iSerialNumber is 0. */
1276 if (version < 0x500) {
1277 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1278 __func__);
8f977e42
IA		 1279 }
1280 } else if (version < 0x200) {
1281 /* Old device. Assume its the original SIO. */
1282 priv->chip_type = SIO;
1283 priv->baud_base = 12000000 / 16;
1284 priv->write_offset = 1;
1285 } else if (version < 0x400) {
1286 /* Assume its an FT8U232AM (or FT8U245AM) */
1287 /* (It might be a BM because of the iSerialNumber bug,
1288 * but it will still work as an AM device.) */
1289 priv->chip_type = FT8U232AM;
3b009c63 1290 } else if (version < 0x600) {
8f977e42
IA		 1291 /* Assume its an FT232BM (or FT245BM) */
1292 priv->chip_type = FT232BM;
3b009c63
DB		 1293 } else {
1294 /* Assume its an FT232R */
1295 priv->chip_type = FT232RL;
8f977e42 1296 }
c197a8db 1297 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1298}
1299
1300
895f28ba
MA		 1301/* Determine the maximum packet size for the device. This depends on the chip
1302 * type and the USB host capabilities. The value should be obtained from the
1303 * device descriptor as the chip will use the appropriate values for the host.*/
1304static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1305{
1306 struct ftdi_private *priv = usb_get_serial_port_data(port);
1307 struct usb_serial *serial = port->serial;
1308 struct usb_device *udev = serial->dev;
1309
1310 struct usb_interface *interface = serial->interface;
1311 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1312
1313 unsigned num_endpoints;
1314 int i = 0;
1315
1316 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1317 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1318
1319 /* NOTE: some customers have programmed FT232R/FT245R devices
1320 * with an endpoint size of 0 - not good. In this case, we
1321 * want to override the endpoint descriptor setting and use a
1322 * value of 64 for wMaxPacketSize */
1323 for (i = 0; i < num_endpoints; i++) {
1324 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1325 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1326 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1327 if (ep_desc->wMaxPacketSize == 0) {
1328 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1329 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1330 }
1331 }
1332
1333 /* set max packet size based on descriptor */
1334 priv->max_packet_size = ep_desc->wMaxPacketSize;
1335
1336 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1337}
1338
1339
1da177e4
LT		 1340/*
1341 * ***************************************************************************
1342 * Sysfs Attribute
1343 * ***************************************************************************
1344 */
1345
464cbb24
AC		 1346static ssize_t show_latency_timer(struct device *dev,
1347 struct device_attribute *attr, char *buf)
1da177e4
LT		 1348{
1349 struct usb_serial_port *port = to_usb_serial_port(dev);
1350 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1351 if (priv->flags & ASYNC_LOW_LATENCY)
1352 return sprintf(buf, "1\n");
1353 else
1354 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1355}
1356
557aaa7f 1357
1da177e4 1358/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1359static ssize_t store_latency_timer(struct device *dev,
1360 struct device_attribute *attr, const char *valbuf,
1361 size_t count)
1da177e4
LT		 1362{
1363 struct usb_serial_port *port = to_usb_serial_port(dev);
1364 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4
LT		 1365 int v = simple_strtoul(valbuf, NULL, 10);
1366 int rv = 0;
5c09d144 1367
557aaa7f
AC		 1368 priv->latency = v;
1369 rv = write_latency_timer(port);
1370 if (rv < 0)
1da177e4 1371 return -EIO;
1da177e4
LT		 1372 return count;
1373}
1374
1375/* Write an event character directly to the FTDI register. The ASCII
1376 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1377static ssize_t store_event_char(struct device *dev,
1378 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1379{
1380 struct usb_serial_port *port = to_usb_serial_port(dev);
1381 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1382 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1383 char buf[1];
1384 int v = simple_strtoul(valbuf, NULL, 10);
1385 int rv = 0;
5c09d144 1386
441b62c1 1387 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1388
1da177e4
LT		 1389 rv = usb_control_msg(udev,
1390 usb_sndctrlpipe(udev, 0),
1391 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1392 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1393 v, priv->interface,
1da177e4 1394 buf, 0, WDR_TIMEOUT);
5c09d144 1395
1da177e4
LT		 1396 if (rv < 0) {
1397 dbg("Unable to write event character: %i", rv);
1398 return -EIO;
1399 }
5c09d144 1400
1da177e4
LT		 1401 return count;
1402}
1403
464cbb24
AC		 1404static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1405 store_latency_timer);
1da177e4
LT		 1406static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1407
12bdbe03 1408static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1409{
12bdbe03 1410 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1411 int retval = 0;
1da177e4 1412
464cbb24 1413 dbg("%s", __func__);
13f4db9e 1414
1da177e4
LT		 1415 /* XXX I've no idea if the original SIO supports the event_char
1416 * sysfs parameter, so I'm playing it safe. */
1417 if (priv->chip_type != SIO) {
1418 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1419 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1420 if ((!retval) &&
97cd49eb
SM		 1421 (priv->chip_type == FT232BM ||
1422 priv->chip_type == FT2232C ||
094c2e6d
MA		 1423 priv->chip_type == FT232RL ||
1424 priv->chip_type == FT2232H ||
1425 priv->chip_type == FT4232H)) {
12bdbe03 1426 retval = device_create_file(&port->dev,
13f4db9e 1427 &dev_attr_latency_timer);
1da177e4
LT		 1428 }
1429 }
13f4db9e 1430 return retval;
1da177e4
LT		 1431}
1432
12bdbe03 1433static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1434{
12bdbe03 1435 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1436
464cbb24 1437 dbg("%s", __func__);
1da177e4 1438
1da177e4
LT		 1439 /* XXX see create_sysfs_attrs */
1440 if (priv->chip_type != SIO) {
12bdbe03 1441 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1442 if (priv->chip_type == FT232BM ||
1443 priv->chip_type == FT2232C ||
094c2e6d
MA		 1444 priv->chip_type == FT232RL ||
1445 priv->chip_type == FT2232H ||
1446 priv->chip_type == FT4232H) {
12bdbe03 1447 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1448 }
1449 }
5c09d144 1450
1da177e4
LT		 1451}
1452
1453/*
1454 * ***************************************************************************
1455 * FTDI driver specific functions
1456 * ***************************************************************************
1457 */
1458
8f977e42 1459/* Probe function to check for special devices */
464cbb24
AC		 1460static int ftdi_sio_probe(struct usb_serial *serial,
1461 const struct usb_device_id *id)
8f977e42 1462{
464cbb24
AC		 1463 struct ftdi_sio_quirk *quirk =
1464 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1465
1466 if (quirk && quirk->probe) {
1467 int ret = quirk->probe(serial);
1468 if (ret != 0)
1469 return ret;
1470 }
1471
8f977e42
IA		 1472 usb_set_serial_data(serial, (void *)id->driver_info);
1473
fa91d43b 1474 return 0;
8f977e42
IA		 1475}
1476
12bdbe03 1477static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1478{
1da177e4 1479 struct ftdi_private *priv;
0ffbbe25
ON		 1480 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1481
13f4db9e 1482
464cbb24 1483 dbg("%s", __func__);
1da177e4 1484
80b6ca48 1485 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1486 if (!priv) {
194343d9 1487 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1488 sizeof(struct ftdi_private));
1da177e4
LT		 1489 return -ENOMEM;
1490 }
1da177e4 1491
c45d6320 1492 kref_init(&priv->kref);
1da177e4 1493 spin_lock_init(&priv->rx_lock);
22465400 1494 spin_lock_init(&priv->tx_lock);
464cbb24 1495 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1496 /* This will push the characters through immediately rather
1497 than queue a task to deliver them */
1498 priv->flags = ASYNC_LOW_LATENCY;
1499
0ffbbe25
ON		 1500 if (quirk && quirk->port_probe)
1501 quirk->port_probe(priv);
1502
1da177e4 1503 /* Increase the size of read buffers */
1bc3c9e1 1504 kfree(port->bulk_in_buffer);
464cbb24 1505 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1506 if (!port->bulk_in_buffer) {
464cbb24 1507 kfree(priv);
1da177e4
LT		 1508 return -ENOMEM;
1509 }
1510 if (port->read_urb) {
1511 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1512 port->read_urb->transfer_buffer_length = BUFSZ;
1513 }
1514
c4028958
DH		 1515 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1516 priv->port = port;
76854cea 1517
1da177e4
LT		 1518 /* Free port's existing write urb and transfer buffer. */
1519 if (port->write_urb) {
464cbb24 1520 usb_free_urb(port->write_urb);
1da177e4
LT		 1521 port->write_urb = NULL;
1522 }
1bc3c9e1
JJ		 1523 kfree(port->bulk_out_buffer);
1524 port->bulk_out_buffer = NULL;
1da177e4 1525
12bdbe03 1526 usb_set_serial_port_data(port, priv);
1da177e4 1527
464cbb24 1528 ftdi_determine_type(port);
895f28ba 1529 ftdi_set_max_packet_size(port);
557aaa7f 1530 read_latency_timer(port);
12bdbe03
JR		 1531 create_sysfs_attrs(port);
1532 return 0;
1533}
1da177e4 1534
8f977e42
IA		 1535/* Setup for the USB-UIRT device, which requires hardwired
1536 * baudrate (38400 gets mapped to 312500) */
1da177e4 1537/* Called from usbserial:serial_probe */
464cbb24 1538static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1539{
464cbb24 1540 dbg("%s", __func__);
1da177e4 1541
1da177e4
LT		 1542 priv->flags |= ASYNC_SPD_CUST;
1543 priv->custom_divisor = 77;
669a6db1 1544 priv->force_baud = 38400;
8f977e42 1545} /* ftdi_USB_UIRT_setup */
1da177e4 1546
8f977e42
IA		 1547/* Setup for the HE-TIRA1 device, which requires hardwired
1548 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1549
1550static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1551{
464cbb24 1552 dbg("%s", __func__);
1da177e4 1553
1da177e4
LT		 1554 priv->flags |= ASYNC_SPD_CUST;
1555 priv->custom_divisor = 240;
669a6db1 1556 priv->force_baud = 38400;
1da177e4 1557 priv->force_rtscts = 1;
8f977e42 1558} /* ftdi_HE_TIRA1_setup */
1da177e4 1559
fa91d43b 1560/*
20734345
HW		 1561 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1562 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1563 * userspace using openocd.
fa91d43b 1564 */
20734345 1565static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1566{
1567 struct usb_device *udev = serial->dev;
1568 struct usb_interface *interface = serial->interface;
1569
464cbb24 1570 dbg("%s", __func__);
fa91d43b
TL		 1571
1572 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1573 dev_info(&udev->dev,
1574 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1575 return -ENODEV;
1576 }
1577
1578 return 0;
1579}
1da177e4 1580
546d7eec
KV		 1581/*
1582 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1583 * We have to correct it if we want to read from it.
1584 */
1585static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1586{
1587 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1588 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1589
1590 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1591 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1592 dev_info(&serial->dev->dev,
1593 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1594 }
1595
1596 return 0;
1597}
1598
c45d6320
AS		 1599static void ftdi_sio_priv_release(struct kref *k)
1600{
1601 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1602
1603 kfree(priv);
1604}
1605
12bdbe03
JR		 1606static int ftdi_sio_port_remove(struct usb_serial_port *port)
1607{
1da177e4
LT		 1608 struct ftdi_private *priv = usb_get_serial_port_data(port);
1609
441b62c1 1610 dbg("%s", __func__);
1da177e4 1611
12bdbe03 1612 remove_sysfs_attrs(port);
5c09d144 1613
80193195 1614 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1615
12bdbe03
JR		 1616 return 0;
1617}
1da177e4 1618
95da310e
AC		 1619static int ftdi_open(struct tty_struct *tty,
1620 struct usb_serial_port *port, struct file *filp)
1da177e4 1621{ /* ftdi_open */
1da177e4
LT		 1622 struct usb_device *dev = port->serial->dev;
1623 struct ftdi_private *priv = usb_get_serial_port_data(port);
1624 unsigned long flags;
5c09d144 1625
1da177e4
LT		 1626 int result = 0;
1627 char buf[1]; /* Needed for the usb_control_msg I think */
1628
441b62c1 1629 dbg("%s", __func__);
1da177e4 1630
22465400
IA		 1631 spin_lock_irqsave(&priv->tx_lock, flags);
1632 priv->tx_bytes = 0;
1633 spin_unlock_irqrestore(&priv->tx_lock, flags);
1634 spin_lock_irqsave(&priv->rx_lock, flags);
1635 priv->rx_bytes = 0;
1636 spin_unlock_irqrestore(&priv->rx_lock, flags);
1637
95da310e
AC		 1638 if (tty)
1639 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4 1640
557aaa7f
AC		 1641 write_latency_timer(port);
1642
1da177e4
LT		 1643 /* No error checking for this (will get errors later anyway) */
1644 /* See ftdi_sio.h for description of what is reset */
1645 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1646 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1647 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1648 priv->interface, buf, 0, WDR_TIMEOUT);
1649
1650 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1651 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1652 This is same behaviour as serial.c/rs_open() - Kuba */
1653
1654 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1655 if (tty)
1656 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1657
1da177e4
LT		 1658 /* Not throttled */
1659 spin_lock_irqsave(&priv->rx_lock, flags);
1660 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1661 spin_unlock_irqrestore(&priv->rx_lock, flags);
1662
1663 /* Start reading from the device */
76854cea 1664 priv->rx_processed = 0;
1da177e4 1665 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1666 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1667 port->read_urb->transfer_buffer,
1668 port->read_urb->transfer_buffer_length,
1669 ftdi_read_bulk_callback, port);
1da177e4
LT		 1670 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1671 if (result)
194343d9
GKH		 1672 dev_err(&port->dev,
1673 "%s - failed submitting read urb, error %d\n",
1674 __func__, result);
c45d6320
AS		 1675 else
1676 kref_get(&priv->kref);
1da177e4
LT		 1677
1678 return result;
1679} /* ftdi_open */
1680
1681
335f8514
AC		 1682static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1683{
1684 struct ftdi_private *priv = usb_get_serial_port_data(port);
1685 char buf[1];
1686
1687 mutex_lock(&port->serial->disc_mutex);
1688 if (!port->serial->disconnected) {
1689 /* Disable flow control */
1690 if (!on && usb_control_msg(port->serial->dev,
1691 usb_sndctrlpipe(port->serial->dev, 0),
1692 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1693 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1694 0, priv->interface, buf, 0,
1695 WDR_TIMEOUT) < 0) {
1696 dev_err(&port->dev, "error from flowcontrol urb\n");
1697 }
1698 /* drop RTS and DTR */
1699 if (on)
1700 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1701 else
1702 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1703 }
1704 mutex_unlock(&port->serial->disc_mutex);
1705}
1da177e4 1706
5c09d144 1707/*
1da177e4
LT		 1708 * usbserial:__serial_close only calls ftdi_close if the point is open
1709 *
1710 * This only gets called when it is the last close
5c09d144
DB		 1711 *
1712 *
1da177e4
LT		 1713 */
1714
335f8514 1715static void ftdi_close(struct usb_serial_port *port)
1da177e4 1716{ /* ftdi_close */
1da177e4 1717 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1718
441b62c1 1719 dbg("%s", __func__);
1da177e4 1720
76854cea
IA		 1721
1722 /* cancel any scheduled reading */
c45d6320 1723 cancel_delayed_work_sync(&priv->rx_work);
5c09d144 1724
1da177e4 1725 /* shutdown our bulk read */
794c944e 1726 usb_kill_urb(port->read_urb);
c45d6320 1727 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1728} /* ftdi_close */
1729
1730
5c09d144 1731
1da177e4
LT		 1732/* The SIO requires the first byte to have:
1733 * B0 1
1734 * B1 0
1735 * B2..7 length of message excluding byte 0
1736 *
1737 * The new devices do not require this byte
1738 */
95da310e 1739static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1740 const unsigned char *buf, int count)
1741{ /* ftdi_write */
1742 struct ftdi_private *priv = usb_get_serial_port_data(port);
1743 struct urb *urb;
1744 unsigned char *buffer;
1745 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1746 int status;
1747 int transfer_size;
22465400 1748 unsigned long flags;
1da177e4 1749
441b62c1 1750 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1751
1752 if (count == 0) {
1753 dbg("write request of 0 bytes");
1754 return 0;
1755 }
22465400
IA		 1756 spin_lock_irqsave(&priv->tx_lock, flags);
1757 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1758 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1759 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1760 return 0;
1761 }
62127a58 1762 priv->tx_outstanding_urbs++;
22465400 1763 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1764
1da177e4 1765 data_offset = priv->write_offset;
464cbb24 1766 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1767
1768 /* Determine total transfer size */
1769 transfer_size = count;
1770 if (data_offset > 0) {
1771 /* Original sio needs control bytes too... */
1772 transfer_size += (data_offset *
895f28ba
MA		 1773 ((count + (priv->max_packet_size - 1 - data_offset)) /
1774 (priv->max_packet_size - data_offset)));
1da177e4
LT		 1775 }
1776
464cbb24 1777 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1778 if (!buffer) {
194343d9
GKH		 1779 dev_err(&port->dev,
1780 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1781 count = -ENOMEM;
1782 goto error_no_buffer;
1da177e4
LT		 1783 }
1784
1785 urb = usb_alloc_urb(0, GFP_ATOMIC);
1786 if (!urb) {
194343d9 1787 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1788 count = -ENOMEM;
1789 goto error_no_urb;
1da177e4
LT		 1790 }
1791
1792 /* Copy data */
1793 if (data_offset > 0) {
464cbb24
AC		 1794 /* Original sio requires control byte at start of
1795 each packet. */
895f28ba 1796 int user_pktsz = priv->max_packet_size - data_offset;
1da177e4
LT		 1797 int todo = count;
1798 unsigned char *first_byte = buffer;
1799 const unsigned char *current_position = buf;
1800
1801 while (todo > 0) {
464cbb24 1802 if (user_pktsz > todo)
1da177e4 1803 user_pktsz = todo;
1da177e4 1804 /* Write the control byte at the front of the packet*/
5c09d144 1805 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1806 /* Copy data for packet */
464cbb24 1807 memcpy(first_byte + data_offset,
1da177e4
LT		 1808 current_position, user_pktsz);
1809 first_byte += user_pktsz + data_offset;
1810 current_position += user_pktsz;
1811 todo -= user_pktsz;
1812 }
1813 } else {
1814 /* No control byte required. */
1815 /* Copy in the data to send */
464cbb24 1816 memcpy(buffer, buf, count);
1da177e4
LT		 1817 }
1818
464cbb24
AC		 1819 usb_serial_debug_data(debug, &port->dev, __func__,
1820 transfer_size, buffer);
1da177e4
LT		 1821
1822 /* fill the buffer and send it */
5c09d144 1823 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1824 usb_sndbulkpipe(port->serial->dev,
1825 port->bulk_out_endpointAddress),
1826 buffer, transfer_size,
1827 ftdi_write_bulk_callback, port);
1da177e4
LT		 1828
1829 status = usb_submit_urb(urb, GFP_ATOMIC);
1830 if (status) {
194343d9
GKH		 1831 dev_err(&port->dev,
1832 "%s - failed submitting write urb, error %d\n",
1833 __func__, status);
1da177e4 1834 count = status;
62127a58 1835 goto error;
22465400
IA		 1836 } else {
1837 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1838 priv->tx_outstanding_bytes += count;
1839 priv->tx_bytes += count;
1840 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1841 }
1842
1843 /* we are done with this urb, so let the host driver
1844 * really free it when it is finished with it */
62127a58 1845 usb_free_urb(urb);
1da177e4 1846
441b62c1 1847 dbg("%s write returning: %d", __func__, count);
1da177e4 1848 return count;
62127a58
ON		 1849error:
1850 usb_free_urb(urb);
1851error_no_urb:
464cbb24 1852 kfree(buffer);
62127a58
ON		 1853error_no_buffer:
1854 spin_lock_irqsave(&priv->tx_lock, flags);
1855 priv->tx_outstanding_urbs--;
1856 spin_unlock_irqrestore(&priv->tx_lock, flags);
1857 return count;
1da177e4
LT		 1858} /* ftdi_write */
1859
1860
1861/* This function may get called when the device is closed */
1862
464cbb24 1863static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1864{
22465400 1865 unsigned long flags;
cdc97792 1866 struct usb_serial_port *port = urb->context;
22465400
IA		 1867 struct ftdi_private *priv;
1868 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1869 unsigned long countback;
0fb0aa18 1870 int status = urb->status;
1da177e4
LT		 1871
1872 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1873 kfree(urb->transfer_buffer);
1da177e4 1874
441b62c1 1875 dbg("%s - port %d", __func__, port->number);
5c09d144 1876
22465400
IA		 1877 priv = usb_get_serial_port_data(port);
1878 if (!priv) {
441b62c1 1879 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1880 return;
1881 }
1882 /* account for transferred data */
1883 countback = urb->actual_length;
1884 data_offset = priv->write_offset;
1885 if (data_offset > 0) {
1886 /* Subtract the control bytes */
895f28ba 1887 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
22465400
IA		 1888 }
1889 spin_lock_irqsave(&priv->tx_lock, flags);
1890 --priv->tx_outstanding_urbs;
1891 priv->tx_outstanding_bytes -= countback;
1892 spin_unlock_irqrestore(&priv->tx_lock, flags);
1893
87c1edd2
JW		 1894 if (status) {
1895 dbg("nonzero write bulk status received: %d", status);
1896 return;
1897 }
1898
cf2c7481 1899 usb_serial_port_softint(port);
1da177e4
LT		 1900} /* ftdi_write_bulk_callback */
1901
1902
95da310e 1903static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1904{
95da310e 1905 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1906 struct ftdi_private *priv = usb_get_serial_port_data(port);
1907 int room;
1908 unsigned long flags;
1909
441b62c1 1910 dbg("%s - port %d", __func__, port->number);
1da177e4 1911
22465400
IA		 1912 spin_lock_irqsave(&priv->tx_lock, flags);
1913 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1914 /*
1915 * We really can take anything the user throws at us
1916 * but let's pick a nice big number to tell the tty
1917 * layer that we have lots of free space
1918 */
1919 room = 2048;
1920 } else {
1921 room = 0;
1922 }
1923 spin_unlock_irqrestore(&priv->tx_lock, flags);
1924 return room;
95da310e 1925}
1da177e4 1926
95da310e
AC		 1927static int ftdi_chars_in_buffer(struct tty_struct *tty)
1928{
1929 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1930 struct ftdi_private *priv = usb_get_serial_port_data(port);
1931 int buffered;
1932 unsigned long flags;
1933
441b62c1 1934 dbg("%s - port %d", __func__, port->number);
1da177e4 1935
22465400
IA		 1936 spin_lock_irqsave(&priv->tx_lock, flags);
1937 buffered = (int)priv->tx_outstanding_bytes;
1938 spin_unlock_irqrestore(&priv->tx_lock, flags);
1939 if (buffered < 0) {
194343d9
GKH		 1940 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1941 __func__);
22465400
IA		 1942 buffered = 0;
1943 }
1944 return buffered;
95da310e 1945}
1da177e4 1946
95da310e
AC		 1947static void ftdi_read_bulk_callback(struct urb *urb)
1948{
cdc97792 1949 struct usb_serial_port *port = urb->context;
1da177e4
LT		 1950 struct tty_struct *tty;
1951 struct ftdi_private *priv;
22465400
IA		 1952 unsigned long countread;
1953 unsigned long flags;
0fb0aa18 1954 int status = urb->status;
1da177e4
LT		 1955
1956 if (urb->number_of_packets > 0) {
194343d9
GKH		 1957 dev_err(&port->dev, "%s transfer_buffer_length %d "
1958 "actual_length %d number of packets %d\n", __func__,
1959 urb->transfer_buffer_length,
1960 urb->actual_length, urb->number_of_packets);
1961 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1962 urb->transfer_flags);
1da177e4
LT		 1963 }
1964
441b62c1 1965 dbg("%s - port %d", __func__, port->number);
1da177e4 1966
95da310e 1967 if (port->port.count <= 0)
1da177e4
LT		 1968 return;
1969
4a90f09b 1970 tty = tty_port_tty_get(&port->port);
1da177e4 1971 if (!tty) {
464cbb24 1972 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1973 return;
1974 }
1975
1976 priv = usb_get_serial_port_data(port);
1977 if (!priv) {
441b62c1 1978 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 1979 goto out;
1da177e4
LT		 1980 }
1981
464cbb24 1982 if (urb != port->read_urb)
194343d9 1983 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1da177e4 1984
0fb0aa18 1985 if (status) {
464cbb24
AC		 1986 /* This will happen at close every time so it is a dbg not an
1987 err */
1988 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
4a90f09b 1989 goto out;
1da177e4
LT		 1990 }
1991
22465400
IA		 1992 /* count data bytes, but not status bytes */
1993 countread = urb->actual_length;
895f28ba 1994 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size);
22465400
IA		 1995 spin_lock_irqsave(&priv->rx_lock, flags);
1996 priv->rx_bytes += countread;
1997 spin_unlock_irqrestore(&priv->rx_lock, flags);
1998
c4028958 1999 ftdi_process_read(&priv->rx_work.work);
4a90f09b
AC		 2000out:
2001 tty_kref_put(tty);
1da177e4
LT		 2002} /* ftdi_read_bulk_callback */
2003
2004
464cbb24 2005static void ftdi_process_read(struct work_struct *work)
1da177e4 2006{ /* ftdi_process_read */
c4028958
DH		 2007 struct ftdi_private *priv =
2008 container_of(work, struct ftdi_private, rx_work.work);
2009 struct usb_serial_port *port = priv->port;
1da177e4
LT		 2010 struct urb *urb;
2011 struct tty_struct *tty;
1da177e4 2012 char error_flag;
5c09d144 2013 unsigned char *data;
1da177e4
LT		 2014
2015 int i;
2016 int result;
2017 int need_flip;
2018 int packet_offset;
76854cea 2019 unsigned long flags;
1da177e4 2020
441b62c1 2021 dbg("%s - port %d", __func__, port->number);
1da177e4 2022
95da310e 2023 if (port->port.count <= 0)
1da177e4
LT		 2024 return;
2025
4a90f09b 2026 tty = tty_port_tty_get(&port->port);
1da177e4 2027 if (!tty) {
464cbb24 2028 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 2029 return;
2030 }
2031
2032 priv = usb_get_serial_port_data(port);
2033 if (!priv) {
441b62c1 2034 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 2035 goto out;
1da177e4
LT		 2036 }
2037
2038 urb = port->read_urb;
2039 if (!urb) {
441b62c1 2040 dbg("%s - bad read_urb pointer - exiting", __func__);
4a90f09b 2041 goto out;
1da177e4
LT		 2042 }
2043
2044 data = urb->transfer_buffer;
2045
76854cea 2046 if (priv->rx_processed) {
441b62c1 2047 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 2048 priv->rx_processed,
2049 urb->actual_length - priv->rx_processed);
1da177e4 2050 } else {
76854cea 2051 /* The first two bytes of every read packet are status */
464cbb24
AC		 2052 if (urb->actual_length > 2)
2053 usb_serial_debug_data(debug, &port->dev, __func__,
2054 urb->actual_length, data);
2055 else
2056 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 2057 }
1da177e4
LT		 2058
2059
2060 /* TO DO -- check for hung up line and handle appropriately: */
2061 /* send hangup */
2062 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
2063 /* if CD is dropped and the line is not CLOCAL then we should hangup */
2064
2065 need_flip = 0;
464cbb24 2066 for (packet_offset = priv->rx_processed;
895f28ba 2067 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) {
76854cea
IA		 2068 int length;
2069
464cbb24
AC		 2070 /* Compare new line status to the old one, signal if different/
2071 N.B. packet may be processed more than once, but differences
2072 are only processed once. */
00185a60
JL		 2073 char new_status = data[packet_offset + 0] &
2074 FTDI_STATUS_B0_MASK;
2075 if (new_status != priv->prev_status) {
2076 priv->diff_status |=
2077 new_status ^ priv->prev_status;
2078 wake_up_interruptible(&priv->delta_msr_wait);
2079 priv->prev_status = new_status;
1da177e4
LT		 2080 }
2081
895f28ba 2082 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2;
76854cea 2083 if (length < 0) {
194343d9
GKH		 2084 dev_err(&port->dev, "%s - bad packet length: %d\n",
2085 __func__, length+2);
76854cea
IA		 2086 length = 0;
2087 }
2088
76854cea 2089 if (priv->rx_flags & THROTTLED) {
441b62c1 2090 dbg("%s - throttled", __func__);
76854cea
IA		 2091 break;
2092 }
33f0f88f 2093 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 2094 /* break out & wait for throttling/unthrottling to
2095 happen */
441b62c1 2096 dbg("%s - receive room low", __func__);
76854cea
IA		 2097 break;
2098 }
2099
1da177e4
LT		 2100 /* Handle errors and break */
2101 error_flag = TTY_NORMAL;
464cbb24
AC		 2102 /* Although the device uses a bitmask and hence can have
2103 multiple errors on a packet - the order here sets the
2104 priority the error is returned to the tty layer */
1da177e4 2105
464cbb24 2106 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 2107 error_flag = TTY_OVERRUN;
2108 dbg("OVERRRUN error");
2109 }
464cbb24 2110 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 2111 error_flag = TTY_BREAK;
2112 dbg("BREAK received");
72fda3ca 2113 usb_serial_handle_break(port);
1da177e4 2114 }
464cbb24 2115 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 2116 error_flag = TTY_PARITY;
2117 dbg("PARITY error");
2118 }
464cbb24 2119 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 2120 error_flag = TTY_FRAME;
2121 dbg("FRAMING error");
2122 }
76854cea
IA		 2123 if (length > 0) {
2124 for (i = 2; i < length+2; i++) {
5c09d144 2125 /* Note that the error flag is duplicated for
1da177e4
LT		 2126 every character received since we don't know
2127 which character it applied to */
24a15a62 2128 if (!usb_serial_handle_sysrq_char(tty, port,
72fda3ca
JW		 2129 data[packet_offset + i]))
2130 tty_insert_flip_char(tty,
2131 data[packet_offset + i],
2132 error_flag);
1da177e4
LT		 2133 }
2134 need_flip = 1;
2135 }
2136
2137#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2138 /* if a parity error is detected you get status packets forever
2139 until a character is sent without a parity error.
464cbb24
AC		 2140 This doesn't work well since the application receives a
2141 never ending stream of bad data - even though new data
2142 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 2143 However - this might make sense for framing errors and so on
1da177e4
LT		 2144 so I am leaving the code in for now.
2145 */
2146 else {
464cbb24 2147 if (error_flag != TTY_NORMAL) {
1da177e4 2148 dbg("error_flag is not normal");
464cbb24
AC		 2149 /* In this case it is just status - if that is
2150 an error send a bad character */
2151 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 2152 tty_flip_buffer_push(tty);
1da177e4
LT		 2153 tty_insert_flip_char(tty, 0xff, error_flag);
2154 need_flip = 1;
2155 }
2156 }
2157#endif
2158 } /* "for(packet_offset=0..." */
2159
2160 /* Low latency */
464cbb24 2161 if (need_flip)
1da177e4 2162 tty_flip_buffer_push(tty);
1da177e4 2163
76854cea
IA		 2164 if (packet_offset < urb->actual_length) {
2165 /* not completely processed - record progress */
2166 priv->rx_processed = packet_offset;
2167 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2168 __func__, packet_offset,
76854cea
IA		 2169 urb->actual_length - packet_offset);
2170 /* check if we were throttled while processing */
2171 spin_lock_irqsave(&priv->rx_lock, flags);
2172 if (priv->rx_flags & THROTTLED) {
2173 priv->rx_flags |= ACTUALLY_THROTTLED;
2174 spin_unlock_irqrestore(&priv->rx_lock, flags);
2175 dbg("%s - deferring remainder until unthrottled",
441b62c1 2176 __func__);
a9fec710 2177 goto out;
76854cea
IA		 2178 }
2179 spin_unlock_irqrestore(&priv->rx_lock, flags);
2180 /* if the port is closed stop trying to read */
464cbb24 2181 if (port->port.count > 0)
76854cea
IA		 2182 /* delay processing of remainder */
2183 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2184 else
441b62c1 2185 dbg("%s - port is closed", __func__);
4a90f09b 2186 goto out;
76854cea
IA		 2187 }
2188
2189 /* urb is completely processed */
2190 priv->rx_processed = 0;
2191
1da177e4 2192 /* if the port is closed stop trying to read */
464cbb24 2193 if (port->port.count > 0) {
1da177e4 2194 /* Continue trying to always read */
5c09d144 2195 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2196 usb_rcvbulkpipe(port->serial->dev,
2197 port->bulk_in_endpointAddress),
2198 port->read_urb->transfer_buffer,
2199 port->read_urb->transfer_buffer_length,
2200 ftdi_read_bulk_callback, port);
1da177e4
LT		 2201
2202 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2203 if (result)
194343d9
GKH		 2204 dev_err(&port->dev,
2205 "%s - failed resubmitting read urb, error %d\n",
2206 __func__, result);
1da177e4 2207 }
4a90f09b
AC		 2208out:
2209 tty_kref_put(tty);
1da177e4
LT		 2210} /* ftdi_process_read */
2211
2212
95da310e 2213static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2214{
95da310e 2215 struct usb_serial_port *port = tty->driver_data;
1da177e4 2216 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2217 __u16 urb_value = 0;
1da177e4 2218 char buf[1];
5c09d144 2219
1da177e4
LT		 2220 /* break_state = -1 to turn on break, and 0 to turn off break */
2221 /* see drivers/char/tty_io.c to see it used */
2222 /* last_set_data_urb_value NEVER has the break bit set in it */
2223
464cbb24 2224 if (break_state)
1da177e4 2225 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2226 else
5c09d144 2227 urb_value = priv->last_set_data_urb_value;
5c09d144 2228
464cbb24
AC		 2229 if (usb_control_msg(port->serial->dev,
2230 usb_sndctrlpipe(port->serial->dev, 0),
2231 FTDI_SIO_SET_DATA_REQUEST,
2232 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2233 urb_value , priv->interface,
2234 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2235 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2236 "(state was %d)\n", __func__, break_state);
5c09d144 2237 }
1da177e4 2238
464cbb24
AC		 2239 dbg("%s break state is %d - urb is %d", __func__,
2240 break_state, urb_value);
5c09d144 2241
1da177e4
LT		 2242}
2243
2244
2245/* old_termios contains the original termios settings and tty->termios contains
2246 * the new setting to be used
2247 * WARNING: set_termios calls this with old_termios in kernel space
2248 */
2249
95da310e
AC		 2250static void ftdi_set_termios(struct tty_struct *tty,
2251 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2252{ /* ftdi_termios */
2253 struct usb_device *dev = port->serial->dev;
1da177e4 2254 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2255 struct ktermios *termios = tty->termios;
669a6db1 2256 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2257 __u16 urb_value; /* will hold the new flags */
2258 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2259
464cbb24 2260 /* Added for xon/xoff support */
669a6db1 2261 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2262 unsigned char vstop;
2263 unsigned char vstart;
5c09d144 2264
441b62c1 2265 dbg("%s", __func__);
1da177e4 2266
464cbb24
AC		 2267 /* Force baud rate if this device requires it, unless it is set to
2268 B0. */
669a6db1 2269 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2270 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2271 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2272 priv->force_baud);
1da177e4
LT		 2273 }
2274
2275 /* Force RTS-CTS if this device requires it. */
2276 if (priv->force_rtscts) {
441b62c1 2277 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2278 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2279 }
2280
669a6db1 2281 cflag = termios->c_cflag;
1da177e4 2282
5c09d144
DB		 2283 /* FIXME -For this cut I don't care if the line is really changing or
2284 not - so just do the change regardless - should be able to
1da177e4 2285 compare old_termios and tty->termios */
5c09d144 2286 /* NOTE These routines can get interrupted by
464cbb24
AC		 2287 ftdi_sio_read_bulk_callback - need to examine what this means -
2288 don't see any problems yet */
5c09d144 2289
1da177e4 2290 /* Set number of data bits, parity, stop bits */
5c09d144 2291
669a6db1
AC		 2292 termios->c_cflag &= ~CMSPAR;
2293
1da177e4
LT		 2294 urb_value = 0;
2295 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2296 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2297 urb_value |= (cflag & PARENB ?
2298 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2299 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2300 FTDI_SIO_SET_DATA_PARITY_NONE);
2301 if (cflag & CSIZE) {
2302 switch (cflag & CSIZE) {
2303 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2304 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2305 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2306 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2307 default:
194343d9 2308 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2309 }
2310 }
2311
464cbb24
AC		 2312 /* This is needed by the break command since it uses the same command
2313 - but is or'ed with this value */
1da177e4 2314 priv->last_set_data_urb_value = urb_value;
5c09d144 2315
1da177e4 2316 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2317 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2318 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2319 urb_value , priv->interface,
279e1545 2320 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2321 dev_err(&port->dev, "%s FAILED to set "
2322 "databits/stopbits/parity\n", __func__);
5c09d144 2323 }
1da177e4
LT		 2324
2325 /* Now do the baudrate */
464cbb24 2326 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2327 /* Disable flow control */
2328 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2329 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2330 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2331 0, priv->interface,
1da177e4 2332 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2333 dev_err(&port->dev,
2334 "%s error from disable flowcontrol urb\n",
2335 __func__);
5c09d144 2336 }
1da177e4 2337 /* Drop RTS and DTR */
74ede0ff 2338 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2339 } else {
2340 /* set the baudrate determined before */
464cbb24 2341 if (change_speed(tty, port))
194343d9
GKH		 2342 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2343 __func__);
72a755fc 2344 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2345 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2346 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2347 }
2348
2349 /* Set flow control */
2350 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2351 if (cflag & CRTSCTS) {
441b62c1 2352 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2353 if (usb_control_msg(dev,
1da177e4 2354 usb_sndctrlpipe(dev, 0),
5c09d144 2355 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2356 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2357 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2358 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2359 dev_err(&port->dev,
2360 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2361 }
2362
2363 } else {
1da177e4
LT		 2364 /*
2365 * Xon/Xoff code
2366 *
464cbb24
AC		 2367 * Check the IXOFF status in the iflag component of the
2368 * termios structure. If IXOFF is not set, the pre-xon/xoff
2369 * code is executed.
2370 */
1da177e4 2371 if (iflag & IXOFF) {
464cbb24
AC		 2372 dbg("%s request to enable xonxoff iflag=%04x",
2373 __func__, iflag);
2374 /* Try to enable the XON/XOFF on the ftdi_sio
2375 * Set the vstart and vstop -- could have been done up
2376 * above where a lot of other dereferencing is done but
2377 * that would be very inefficient as vstart and vstop
2378 * are not always needed.
2379 */
669a6db1
AC		 2380 vstart = termios->c_cc[VSTART];
2381 vstop = termios->c_cc[VSTOP];
464cbb24 2382 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2383
2384 if (usb_control_msg(dev,
2385 usb_sndctrlpipe(dev, 0),
2386 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2387 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2388 urb_value , (FTDI_SIO_XON_XOFF_HS
2389 | priv->interface),
2390 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2391 dev_err(&port->dev, "urb failed to set to "
2392 "xon/xoff flow control\n");
1da177e4
LT		 2393 }
2394 } else {
464cbb24
AC		 2395 /* else clause to only run if cflag ! CRTSCTS and iflag
2396 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2397 * stack - not by device */
441b62c1 2398 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2399 if (usb_control_msg(dev,
1da177e4 2400 usb_sndctrlpipe(dev, 0),
5c09d144 2401 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2402 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2403 0, priv->interface,
1da177e4 2404 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2405 dev_err(&port->dev,
2406 "urb failed to clear flow control\n");
5c09d144 2407 }
1da177e4 2408 }
5c09d144 2409
1da177e4
LT		 2410 }
2411 return;
95da310e 2412}
1da177e4 2413
95da310e 2414static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
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 char buf[2];
2419 int ret;
2420
441b62c1 2421 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2422 switch (priv->chip_type) {
2423 case SIO:
2424 /* Request the status from the device */
464cbb24
AC		 2425 ret = usb_control_msg(port->serial->dev,
2426 usb_rcvctrlpipe(port->serial->dev, 0),
2427 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2428 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2429 0, 0,
2430 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2431 if (ret < 0)
464cbb24 2432 return ret;
1da177e4
LT		 2433 break;
2434 case FT8U232AM:
2435 case FT232BM:
2436 case FT2232C:
ed6e5282 2437 case FT232RL:
094c2e6d
MA		 2438 case FT2232H:
2439 case FT4232H:
464cbb24
AC		 2440 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2441 value) - in the same format as the data returned from the in
2442 point */
2443 ret = usb_control_msg(port->serial->dev,
2444 usb_rcvctrlpipe(port->serial->dev, 0),
2445 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2446 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2447 0, priv->interface,
2448 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2449 if (ret < 0)
464cbb24 2450 return ret;
1da177e4
LT		 2451 break;
2452 default:
2453 return -EFAULT;
1da177e4 2454 }
5c09d144 2455
1da177e4
LT		 2456 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2457 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2458 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2459 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2460 priv->last_dtr_rts;
1da177e4
LT		 2461}
2462
464cbb24 2463static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2464 unsigned int set, unsigned int clear)
1da177e4 2465{
95da310e 2466 struct usb_serial_port *port = tty->driver_data;
441b62c1 2467 dbg("%s TIOCMSET", __func__);
74ede0ff 2468 return update_mctrl(port, set, clear);
1da177e4
LT		 2469}
2470
2471
464cbb24
AC		 2472static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2473 unsigned int cmd, unsigned long arg)
1da177e4 2474{
95da310e 2475 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2476 struct ftdi_private *priv = usb_get_serial_port_data(port);
2477
441b62c1 2478 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2479
2480 /* Based on code from acm.c and others */
2481 switch (cmd) {
2482
1da177e4 2483 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2484 return get_serial_info(port,
2485 (struct serial_struct __user *) arg);
1da177e4
LT		 2486
2487 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2488 return set_serial_info(tty, port,
2489 (struct serial_struct __user *) arg);
1da177e4
LT		 2490
2491 /*
2492 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2493 * - mask passed in arg for lines of interest
2494 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2495 * Caller should use TIOCGICOUNT to see which one it was.
2496 *
2497 * This code is borrowed from linux/drivers/char/serial.c
2498 */
2499 case TIOCMIWAIT:
2500 while (priv != NULL) {
2501 interruptible_sleep_on(&priv->delta_msr_wait);
2502 /* see if a signal did it */
2503 if (signal_pending(current))
2504 return -ERESTARTSYS;
2505 else {
2506 char diff = priv->diff_status;
2507
464cbb24 2508 if (diff == 0)
1da177e4 2509 return -EIO; /* no change => error */
1da177e4
LT		 2510
2511 /* Consume all events */
2512 priv->diff_status = 0;
2513
464cbb24
AC		 2514 /* Return 0 if caller wanted to know about
2515 these bits */
2516 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2517 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2518 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2519 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2520 return 0;
2521 }
2522 /*
464cbb24
AC		 2523 * Otherwise caller can't care less about what
2524 * happened,and so we continue to wait for more
2525 * events.
1da177e4
LT		 2526 */
2527 }
2528 }
95da310e 2529 return 0;
1da177e4
LT		 2530 default:
2531 break;
1da177e4 2532 }
464cbb24
AC		 2533 /* This is not necessarily an error - turns out the higher layers
2534 * will do some ioctls themselves (see comment above)
1da177e4 2535 */
441b62c1 2536 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2537 return -ENOIOCTLCMD;
2538}
1da177e4 2539
95da310e 2540static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2541{
95da310e 2542 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2543 struct ftdi_private *priv = usb_get_serial_port_data(port);
2544 unsigned long flags;
2545
441b62c1 2546 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2547
2548 spin_lock_irqsave(&priv->rx_lock, flags);
2549 priv->rx_flags |= THROTTLED;
2550 spin_unlock_irqrestore(&priv->rx_lock, flags);
2551}
2552
2553
95da310e 2554static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2555{
95da310e 2556 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2557 struct ftdi_private *priv = usb_get_serial_port_data(port);
2558 int actually_throttled;
2559 unsigned long flags;
2560
441b62c1 2561 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2562
2563 spin_lock_irqsave(&priv->rx_lock, flags);
2564 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2565 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2566 spin_unlock_irqrestore(&priv->rx_lock, flags);
2567
2568 if (actually_throttled)
c4028958 2569 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2570}
2571
464cbb24 2572static int __init ftdi_init(void)
1da177e4
LT		 2573{
2574 int retval;
2575
441b62c1 2576 dbg("%s", __func__);
fdcb0a0f
IA		 2577 if (vendor > 0 && product > 0) {
2578 /* Add user specified VID/PID to reserved element of table. */
2579 int i;
2580 for (i = 0; id_table_combined[i].idVendor; i++)
2581 ;
2582 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2583 id_table_combined[i].idVendor = vendor;
2584 id_table_combined[i].idProduct = product;
2585 }
8f977e42 2586 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2587 if (retval)
8f977e42 2588 goto failed_sio_register;
1da177e4 2589 retval = usb_register(&ftdi_driver);
5c09d144 2590 if (retval)
1da177e4
LT		 2591 goto failed_usb_register;
2592
c197a8db
GKH		 2593 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2594 DRIVER_DESC "\n");
1da177e4
LT		 2595 return 0;
2596failed_usb_register:
8f977e42
IA		 2597 usb_serial_deregister(&ftdi_sio_device);
2598failed_sio_register:
1da177e4
LT		 2599 return retval;
2600}
2601
2602
464cbb24 2603static void __exit ftdi_exit(void)
1da177e4
LT		 2604{
2605
441b62c1 2606 dbg("%s", __func__);
1da177e4 2607
464cbb24
AC		 2608 usb_deregister(&ftdi_driver);
2609 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2610
2611}
2612
2613
2614module_init(ftdi_init);
2615module_exit(ftdi_exit);
2616
464cbb24
AC		 2617MODULE_AUTHOR(DRIVER_AUTHOR);
2618MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2619MODULE_LICENSE("GPL");
2620
2621module_param(debug, bool, S_IRUGO | S_IWUSR);
2622MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2623module_param(vendor, ushort, 0);
2624MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2625 __MODULE_STRING(FTDI_VID)")");
2626module_param(product, ushort, 0);
68265043 2627MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2628
Clone of davem's net-next-2.6 tree