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USB: drivers/usb/musb/: disable it on SuperH
[net-next-2.6.git] / drivers / usb / serial / ftdi_sio.c
CommitLineData
1da177e4
LT		 1/*
2 * USB FTDI SIO driver
3 *
5c09d144
DB		 4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
1da177e4
LT		 6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
5c09d144
DB		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
1da177e4 14 *
464cbb24
AC		 15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
1da177e4
LT		 17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
504b55cc
GKH		 21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 23 *
24 */
25
26/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27/* Thanx to FTDI for so kindly providing details of the protocol required */
28/* to talk to the device */
464cbb24
AC		 29/* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
1da177e4 31
1da177e4
LT		 32#include <linux/kernel.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/slab.h>
36#include <linux/tty.h>
37#include <linux/tty_driver.h>
38#include <linux/tty_flip.h>
39#include <linux/module.h>
40#include <linux/spinlock.h>
464cbb24 41#include <linux/uaccess.h>
1da177e4
LT		 42#include <linux/usb.h>
43#include <linux/serial.h>
a969888c 44#include <linux/usb/serial.h>
1da177e4
LT		 45#include "ftdi_sio.h"
46
47/*
48 * Version Information
49 */
8f977e42 50#define DRIVER_VERSION "v1.4.3"
1da177e4
LT		 51#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
52#define DRIVER_DESC "USB FTDI Serial Converters Driver"
53
54static int debug;
fdcb0a0f
IA		 55static __u16 vendor = FTDI_VID;
56static __u16 product;
1da177e4 57
0ffbbe25
ON		 58struct ftdi_private {
59 ftdi_chip_type_t chip_type;
464cbb24 60 /* type of device, either SIO or FT8U232AM */
0ffbbe25 61 int baud_base; /* baud base clock for divisor setting */
464cbb24
AC		 62 int custom_divisor; /* custom_divisor kludge, this is for
63 baud_base (different from what goes to the
64 chip!) */
0ffbbe25 65 __u16 last_set_data_urb_value ;
464cbb24
AC		 66 /* the last data state set - needed for doing
67 * a break
68 */
69 int write_offset; /* This is the offset in the usb data block to
70 * write the serial data - it varies between
71 * devices
0ffbbe25
ON		 72 */
73 int flags; /* some ASYNC_xxxx flags are supported */
74 unsigned long last_dtr_rts; /* saved modem control outputs */
464cbb24 75 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
0ffbbe25
ON		 76 char prev_status, diff_status; /* Used for TIOCMIWAIT */
77 __u8 rx_flags; /* receive state flags (throttling) */
78 spinlock_t rx_lock; /* spinlock for receive state */
79 struct delayed_work rx_work;
80 struct usb_serial_port *port;
81 int rx_processed;
82 unsigned long rx_bytes;
83
84 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
85
464cbb24
AC		 86 speed_t force_baud; /* if non-zero, force the baud rate to
87 this value */
88 int force_rtscts; /* if non-zero, force RTS-CTS to always
89 be enabled */
0ffbbe25
ON		 90
91 spinlock_t tx_lock; /* spinlock for transmit state */
92 unsigned long tx_bytes;
93 unsigned long tx_outstanding_bytes;
94 unsigned long tx_outstanding_urbs;
95};
96
8f977e42
IA		 97/* struct ftdi_sio_quirk is used by devices requiring special attention. */
98struct ftdi_sio_quirk {
fa91d43b 99 int (*probe)(struct usb_serial *);
464cbb24
AC		 100 /* Special settings for probed ports. */
101 void (*port_probe)(struct ftdi_private *);
8f977e42
IA		 102};
103
464cbb24
AC		 104static int ftdi_jtag_probe(struct usb_serial *serial);
105static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
106static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
107static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 108
20734345
HW		 109static struct ftdi_sio_quirk ftdi_jtag_quirk = {
110 .probe = ftdi_jtag_probe,
fa91d43b
TL		 111};
112
546d7eec
KV		 113static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
114 .probe = ftdi_mtxorb_hack_setup,
115};
116
8f977e42 117static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 118 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 119};
120
121static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 122 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 123};
124
125/*
126 * The 8U232AM has the same API as the sio except for:
127 * - it can support MUCH higher baudrates; up to:
128 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
129 * o 230400 at 12MHz
130 * so .. 8U232AM's baudrate setting codes are different
131 * - it has a two byte status code.
132 * - it returns characters every 16ms (the FTDI does it every 40ms)
133 *
134 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
135 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
136 * combinations in both tables.
8f977e42
IA		 137 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
138 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 139 */
140
141
1da177e4
LT		 142
143static struct usb_device_id id_table_combined [] = {
2011e924
JD		 144 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
145 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
6e1ab3ed
PM		 146 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
147 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
148 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 154 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 155 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 156 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 157 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 158 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 159 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 162 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 163 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
c0f8d561 164 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 165 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 166 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
1da177e4
LT		 167 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
168 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
169 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
170 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
178 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 180 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
464cbb24
AC		 187 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
188 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
189 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
190 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 227 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 233 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 273 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 275 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 277 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 279 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 281 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 283 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 451 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 452 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 453 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 454 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 455 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
456 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
457 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
502 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
503 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 504 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
505 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
506 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
507 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 508 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
509 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
510 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
511 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 512 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
513 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
514 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 528 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 529 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 530 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 532 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 533 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 534 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 542 /*
42f8aa94
PS		 543 * Due to many user requests for multiple ELV devices we enable
544 * them by default.
e6ac4a40 545 */
42f8aa94
PS		 546 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 564 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 565 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 566 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
5c09d144
DB		 567 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
568 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
569 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
570 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
571 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 574 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
1da177e4
LT		 575 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
576 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
577 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
578 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 579 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 580 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
ef31fec0 581 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 582 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 583 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
584 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
585 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
586 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 587 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
588 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 589 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
590 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
591 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
592 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 597 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 598 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 599 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
600 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 601 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 607 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 609 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 610 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
611 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 612 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 614 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 615 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 616 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 618 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
619 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 620 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 621 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 622 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 623 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
624 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 625 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 626 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 627 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 628 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 629 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 630 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 631 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 632 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 633 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 634 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 635 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
636 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
637 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 638 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
822c7ef4 639 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 640 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 641 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 642 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 643 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 644 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 645 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 646 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
647 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
648 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
649 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
650 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 651 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
652 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
653 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
654 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 655 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 656 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 657 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
fdcb0a0f
IA		 658 { }, /* Optional parameter entry */
659 { } /* Terminating entry */
1da177e4
LT		 660};
661
464cbb24 662MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 663
664static struct usb_driver ftdi_driver = {
665 .name = "ftdi_sio",
666 .probe = usb_serial_probe,
667 .disconnect = usb_serial_disconnect,
668 .id_table = id_table_combined,
5c09d144 669 .no_dynamic_id = 1,
1da177e4
LT		 670};
671
4c4c9432 672static const char *ftdi_chip_name[] = {
1da177e4
LT		 673 [SIO] = "SIO", /* the serial part of FT8U100AX */
674 [FT8U232AM] = "FT8U232AM",
675 [FT232BM] = "FT232BM",
676 [FT2232C] = "FT2232C",
d8b21606 677 [FT232RL] = "FT232RL",
1da177e4
LT		 678};
679
680
681/* Constants for read urb and write urb */
682#define BUFSZ 512
683#define PKTSZ 64
684
685/* rx_flags */
686#define THROTTLED 0x01
687#define ACTUALLY_THROTTLED 0x02
688
1da177e4
LT		 689/* Used for TIOCMIWAIT */
690#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
691#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
692/* End TIOCMIWAIT */
693
bbc5d276
RK		 694#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
695 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 696
697/* function prototypes for a FTDI serial converter */
464cbb24
AC		 698static int ftdi_sio_probe(struct usb_serial *serial,
699 const struct usb_device_id *id);
700static void ftdi_shutdown(struct usb_serial *serial);
701static int ftdi_sio_port_probe(struct usb_serial_port *port);
702static int ftdi_sio_port_remove(struct usb_serial_port *port);
703static int ftdi_open(struct tty_struct *tty,
704 struct usb_serial_port *port, struct file *filp);
705static void ftdi_close(struct tty_struct *tty,
706 struct usb_serial_port *port, struct file *filp);
707static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
708 const unsigned char *buf, int count);
709static int ftdi_write_room(struct tty_struct *tty);
710static int ftdi_chars_in_buffer(struct tty_struct *tty);
711static void ftdi_write_bulk_callback(struct urb *urb);
712static void ftdi_read_bulk_callback(struct urb *urb);
713static void ftdi_process_read(struct work_struct *work);
714static void ftdi_set_termios(struct tty_struct *tty,
715 struct usb_serial_port *port, struct ktermios *old);
716static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
717static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
718 unsigned int set, unsigned int clear);
719static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
720 unsigned int cmd, unsigned long arg);
721static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
722static void ftdi_throttle(struct tty_struct *tty);
723static void ftdi_unthrottle(struct tty_struct *tty);
724
725static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
726static unsigned short int ftdi_232am_baud_to_divisor(int baud);
727static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
728static __u32 ftdi_232bm_baud_to_divisor(int baud);
1da177e4 729
ea65370d 730static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 731 .driver = {
732 .owner = THIS_MODULE,
269bda1c 733 .name = "ftdi_sio",
18fcac35 734 },
269bda1c 735 .description = "FTDI USB Serial Device",
d9b1b787 736 .usb_driver = &ftdi_driver ,
8f977e42 737 .id_table = id_table_combined,
1da177e4 738 .num_ports = 1,
8f977e42 739 .probe = ftdi_sio_probe,
12bdbe03
JR		 740 .port_probe = ftdi_sio_port_probe,
741 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 742 .open = ftdi_open,
743 .close = ftdi_close,
744 .throttle = ftdi_throttle,
745 .unthrottle = ftdi_unthrottle,
746 .write = ftdi_write,
747 .write_room = ftdi_write_room,
748 .chars_in_buffer = ftdi_chars_in_buffer,
749 .read_bulk_callback = ftdi_read_bulk_callback,
750 .write_bulk_callback = ftdi_write_bulk_callback,
751 .tiocmget = ftdi_tiocmget,
752 .tiocmset = ftdi_tiocmset,
753 .ioctl = ftdi_ioctl,
754 .set_termios = ftdi_set_termios,
755 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 756 .shutdown = ftdi_shutdown,
757};
758
1da177e4
LT		 759
760#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 761#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 762
763/* High and low are for DTR, RTS etc etc */
764#define HIGH 1
765#define LOW 0
766
22465400
IA		 767/* number of outstanding urbs to prevent userspace DoS from happening */
768#define URB_UPPER_LIMIT 42
769
1da177e4
LT		 770/*
771 * ***************************************************************************
fa91d43b 772 * Utility functions
1da177e4
LT		 773 * ***************************************************************************
774 */
775
776static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
777{
778 unsigned short int divisor;
464cbb24
AC		 779 /* divisor shifted 3 bits to the left */
780 int divisor3 = base / 2 / baud;
781 if ((divisor3 & 0x7) == 7)
782 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 783 divisor = divisor3 >> 3;
784 divisor3 &= 0x7;
464cbb24
AC		 785 if (divisor3 == 1)
786 divisor |= 0xc000;
787 else if (divisor3 >= 4)
788 divisor |= 0x4000;
789 else if (divisor3 != 0)
790 divisor |= 0x8000;
791 else if (divisor == 1)
792 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 793 return divisor;
794}
795
796static unsigned short int ftdi_232am_baud_to_divisor(int baud)
797{
464cbb24 798 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 799}
800
801static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
802{
803 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
804 __u32 divisor;
464cbb24
AC		 805 /* divisor shifted 3 bits to the left */
806 int divisor3 = base / 2 / baud;
1da177e4
LT		 807 divisor = divisor3 >> 3;
808 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
809 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 810 if (divisor == 1)
811 divisor = 0;
812 else if (divisor == 0x4001)
813 divisor = 1;
1da177e4
LT		 814 return divisor;
815}
816
817static __u32 ftdi_232bm_baud_to_divisor(int baud)
818{
464cbb24 819 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 820}
821
74ede0ff
IA		 822#define set_mctrl(port, set) update_mctrl((port), (set), 0)
823#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
824
464cbb24
AC		 825static int update_mctrl(struct usb_serial_port *port, unsigned int set,
826 unsigned int clear)
1da177e4
LT		 827{
828 struct ftdi_private *priv = usb_get_serial_port_data(port);
829 char *buf;
74ede0ff 830 unsigned urb_value;
1da177e4 831 int rv;
1da177e4 832
74ede0ff 833 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 834 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 835 return 0; /* no change */
836 }
1da177e4 837
1da177e4 838 buf = kmalloc(1, GFP_NOIO);
9b0f2582 839 if (!buf)
1da177e4 840 return -ENOMEM;
74ede0ff
IA		 841
842 clear &= ~set; /* 'set' takes precedence over 'clear' */
843 urb_value = 0;
844 if (clear & TIOCM_DTR)
845 urb_value |= FTDI_SIO_SET_DTR_LOW;
846 if (clear & TIOCM_RTS)
847 urb_value |= FTDI_SIO_SET_RTS_LOW;
848 if (set & TIOCM_DTR)
849 urb_value |= FTDI_SIO_SET_DTR_HIGH;
850 if (set & TIOCM_RTS)
851 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 852 rv = usb_control_msg(port->serial->dev,
853 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 854 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 855 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 856 urb_value, priv->interface,
1da177e4
LT		 857 buf, 0, WDR_TIMEOUT);
858
859 kfree(buf);
74ede0ff
IA		 860 if (rv < 0) {
861 err("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 862 __func__,
74ede0ff
IA		 863 (set & TIOCM_DTR) ? "HIGH" :
864 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
865 (set & TIOCM_RTS) ? "HIGH" :
866 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
867 } else {
441b62c1 868 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 869 (set & TIOCM_DTR) ? "HIGH" :
870 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
871 (set & TIOCM_RTS) ? "HIGH" :
872 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 873 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 874 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
875 }
1da177e4
LT		 876 return rv;
877}
878
879
464cbb24
AC		 880static __u32 get_ftdi_divisor(struct tty_struct *tty,
881 struct usb_serial_port *port)
1da177e4
LT		 882{ /* get_ftdi_divisor */
883 struct ftdi_private *priv = usb_get_serial_port_data(port);
884 __u32 div_value = 0;
885 int div_okay = 1;
886 int baud;
887
888 /*
464cbb24
AC		 889 * The logic involved in setting the baudrate can be cleanly split into
890 * 3 steps.
1da177e4 891 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 892 * 2. If these are not enough, you can set any speed using alt_speed as
893 * follows:
1da177e4
LT		 894 * - set tty->termios->c_cflag speed to B38400
895 * - set your real speed in tty->alt_speed; it gets ignored when
896 * alt_speed==0, (or)
464cbb24
AC		 897 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
898 * follows:
899 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
900 * this just sets alt_speed to (HI: 57600, VHI: 115200,
901 * SHI: 230400, WARP: 460800)
1da177e4
LT		 902 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
903 * 3. You can also set baud rate by setting custom divisor as follows
904 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 905 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
906 * follows:
1da177e4
LT		 907 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
908 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 909 * ** Step 3 is done courtesy of code borrowed from serial.c
910 * I should really spend some time and separate + move this common
911 * code to serial.c, it is replicated in nearly every serial driver
912 * you see.
1da177e4
LT		 913 */
914
464cbb24
AC		 915 /* 1. Get the baud rate from the tty settings, this observes
916 alt_speed hack */
1da177e4 917
95da310e 918 baud = tty_get_baud_rate(tty);
441b62c1 919 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 920
464cbb24
AC		 921 /* 2. Observe async-compatible custom_divisor hack, update baudrate
922 if needed */
1da177e4
LT		 923
924 if (baud == 38400 &&
925 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
926 (priv->custom_divisor)) {
927 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 928 dbg("%s - custom divisor %d sets baud rate to %d",
929 __func__, priv->custom_divisor, baud);
1da177e4
LT		 930 }
931
932 /* 3. Convert baudrate to device-specific divisor */
933
464cbb24
AC		 934 if (!baud)
935 baud = 9600;
936 switch (priv->chip_type) {
1da177e4 937 case SIO: /* SIO chip */
464cbb24 938 switch (baud) {
1da177e4
LT		 939 case 300: div_value = ftdi_sio_b300; break;
940 case 600: div_value = ftdi_sio_b600; break;
941 case 1200: div_value = ftdi_sio_b1200; break;
942 case 2400: div_value = ftdi_sio_b2400; break;
943 case 4800: div_value = ftdi_sio_b4800; break;
944 case 9600: div_value = ftdi_sio_b9600; break;
945 case 19200: div_value = ftdi_sio_b19200; break;
946 case 38400: div_value = ftdi_sio_b38400; break;
947 case 57600: div_value = ftdi_sio_b57600; break;
948 case 115200: div_value = ftdi_sio_b115200; break;
949 } /* baud */
950 if (div_value == 0) {
464cbb24
AC		 951 dbg("%s - Baudrate (%d) requested is not supported",
952 __func__, baud);
1da177e4 953 div_value = ftdi_sio_b9600;
bd5e47cc 954 baud = 9600;
1da177e4
LT		 955 div_okay = 0;
956 }
957 break;
958 case FT8U232AM: /* 8U232AM chip */
959 if (baud <= 3000000) {
960 div_value = ftdi_232am_baud_to_divisor(baud);
961 } else {
464cbb24 962 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 963 baud = 9600;
1da177e4
LT		 964 div_value = ftdi_232am_baud_to_divisor(9600);
965 div_okay = 0;
966 }
967 break;
968 case FT232BM: /* FT232BM chip */
969 case FT2232C: /* FT2232C chip */
3b009c63 970 case FT232RL:
1da177e4
LT		 971 if (baud <= 3000000) {
972 div_value = ftdi_232bm_baud_to_divisor(baud);
973 } else {
464cbb24 974 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 975 div_value = ftdi_232bm_baud_to_divisor(9600);
976 div_okay = 0;
669a6db1 977 baud = 9600;
1da177e4
LT		 978 }
979 break;
980 } /* priv->chip_type */
981
982 if (div_okay) {
983 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 984 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 985 ftdi_chip_name[priv->chip_type]);
986 }
987
95da310e 988 tty_encode_baud_rate(tty, baud, baud);
464cbb24 989 return div_value;
1da177e4
LT		 990}
991
95da310e
AC		 992static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
993{
994 struct ftdi_private *priv = usb_get_serial_port_data(port);
995 char *buf;
464cbb24 996 __u16 urb_value;
95da310e
AC		 997 __u16 urb_index;
998 __u32 urb_index_value;
999 int rv;
1000
1001 buf = kmalloc(1, GFP_NOIO);
1002 if (!buf)
1003 return -ENOMEM;
1004
1005 urb_index_value = get_ftdi_divisor(tty, port);
1006 urb_value = (__u16)urb_index_value;
1007 urb_index = (__u16)(urb_index_value >> 16);
1008 if (priv->interface) { /* FT2232C */
1009 urb_index = (__u16)((urb_index << 8) | priv->interface);
1010 }
1011
1012 rv = usb_control_msg(port->serial->dev,
1013 usb_sndctrlpipe(port->serial->dev, 0),
1014 FTDI_SIO_SET_BAUDRATE_REQUEST,
1015 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1016 urb_value, urb_index,
1017 buf, 0, WDR_SHORT_TIMEOUT);
1018
1019 kfree(buf);
1020 return rv;
1021}
1022
1023
1da177e4 1024
464cbb24
AC		 1025static int get_serial_info(struct usb_serial_port *port,
1026 struct serial_struct __user *retinfo)
1da177e4
LT		 1027{
1028 struct ftdi_private *priv = usb_get_serial_port_data(port);
1029 struct serial_struct tmp;
1030
1031 if (!retinfo)
1032 return -EFAULT;
1033 memset(&tmp, 0, sizeof(tmp));
1034 tmp.flags = priv->flags;
1035 tmp.baud_base = priv->baud_base;
1036 tmp.custom_divisor = priv->custom_divisor;
1037 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1038 return -EFAULT;
1039 return 0;
1040} /* get_serial_info */
1041
1042
95da310e 1043static int set_serial_info(struct tty_struct *tty,
464cbb24 1044 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1045{ /* set_serial_info */
1046 struct ftdi_private *priv = usb_get_serial_port_data(port);
1047 struct serial_struct new_serial;
1048 struct ftdi_private old_priv;
1049
1050 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1051 return -EFAULT;
464cbb24 1052 old_priv = *priv;
1da177e4
LT		 1053
1054 /* Do error checking and permission checking */
1055
1056 if (!capable(CAP_SYS_ADMIN)) {
1057 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1058 (priv->flags & ~ASYNC_USR_MASK)))
1059 return -EPERM;
1060 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1061 (new_serial.flags & ASYNC_USR_MASK));
1062 priv->custom_divisor = new_serial.custom_divisor;
1063 goto check_and_exit;
1064 }
1065
1066 if ((new_serial.baud_base != priv->baud_base) &&
1067 (new_serial.baud_base < 9600))
1068 return -EINVAL;
1069
1070 /* Make the changes - these are privileged changes! */
1071
1072 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1073 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1074 priv->custom_divisor = new_serial.custom_divisor;
1075
95da310e 1076 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4
LT		 1077
1078check_and_exit:
1079 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1080 (priv->flags & ASYNC_SPD_MASK)) {
1081 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1082 tty->alt_speed = 57600;
1da177e4 1083 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1084 tty->alt_speed = 115200;
1da177e4 1085 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1086 tty->alt_speed = 230400;
1da177e4 1087 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1088 tty->alt_speed = 460800;
1da177e4 1089 else
95da310e 1090 tty->alt_speed = 0;
1da177e4
LT		 1091 }
1092 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1093 (priv->flags & ASYNC_SPD_MASK)) ||
1094 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1095 (old_priv.custom_divisor != priv->custom_divisor))) {
95da310e 1096 change_speed(tty, port);
1da177e4 1097 }
95da310e 1098 return 0;
1da177e4
LT		 1099
1100} /* set_serial_info */
1101
1102
8f977e42
IA		 1103/* Determine type of FTDI chip based on USB config and descriptor. */
1104static void ftdi_determine_type(struct usb_serial_port *port)
1105{
1106 struct ftdi_private *priv = usb_get_serial_port_data(port);
1107 struct usb_serial *serial = port->serial;
1108 struct usb_device *udev = serial->dev;
1109 unsigned version;
1110 unsigned interfaces;
1111
1112 /* Assume it is not the original SIO device for now. */
f5e09b7c 1113 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1114 priv->write_offset = 0;
1115
1116 version = le16_to_cpu(udev->descriptor.bcdDevice);
1117 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1118 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1119 version, interfaces);
1120 if (interfaces > 1) {
1121 int inter;
1122
1123 /* Multiple interfaces. Assume FT2232C. */
1124 priv->chip_type = FT2232C;
1125 /* Determine interface code. */
1126 inter = serial->interface->altsetting->desc.bInterfaceNumber;
464cbb24 1127 if (inter == 0)
8f977e42 1128 priv->interface = PIT_SIOA;
464cbb24 1129 else
8f977e42 1130 priv->interface = PIT_SIOB;
8f977e42
IA		 1131 /* BM-type devices have a bug where bcdDevice gets set
1132 * to 0x200 when iSerialNumber is 0. */
1133 if (version < 0x500) {
1134 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1135 __func__);
8f977e42
IA		 1136 }
1137 } else if (version < 0x200) {
1138 /* Old device. Assume its the original SIO. */
1139 priv->chip_type = SIO;
1140 priv->baud_base = 12000000 / 16;
1141 priv->write_offset = 1;
1142 } else if (version < 0x400) {
1143 /* Assume its an FT8U232AM (or FT8U245AM) */
1144 /* (It might be a BM because of the iSerialNumber bug,
1145 * but it will still work as an AM device.) */
1146 priv->chip_type = FT8U232AM;
3b009c63 1147 } else if (version < 0x600) {
8f977e42
IA		 1148 /* Assume its an FT232BM (or FT245BM) */
1149 priv->chip_type = FT232BM;
3b009c63
DB		 1150 } else {
1151 /* Assume its an FT232R */
1152 priv->chip_type = FT232RL;
8f977e42
IA		 1153 }
1154 info("Detected %s", ftdi_chip_name[priv->chip_type]);
1155}
1156
1157
1da177e4
LT		 1158/*
1159 * ***************************************************************************
1160 * Sysfs Attribute
1161 * ***************************************************************************
1162 */
1163
464cbb24
AC		 1164static ssize_t show_latency_timer(struct device *dev,
1165 struct device_attribute *attr, char *buf)
1da177e4
LT		 1166{
1167 struct usb_serial_port *port = to_usb_serial_port(dev);
1168 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1169 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1170 unsigned short latency = 0;
1171 int rv = 0;
5c09d144 1172
5c09d144 1173
464cbb24 1174 dbg("%s", __func__);
5c09d144 1175
1da177e4
LT		 1176 rv = usb_control_msg(udev,
1177 usb_rcvctrlpipe(udev, 0),
1178 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1179 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1180 0, priv->interface,
464cbb24 1181 (char *) &latency, 1, WDR_TIMEOUT);
5c09d144 1182
1da177e4 1183 if (rv < 0) {
898eb71c 1184 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1da177e4
LT		 1185 return -EIO;
1186 }
1187 return sprintf(buf, "%i\n", latency);
1188}
1189
1190/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1191static ssize_t store_latency_timer(struct device *dev,
1192 struct device_attribute *attr, const char *valbuf,
1193 size_t count)
1da177e4
LT		 1194{
1195 struct usb_serial_port *port = to_usb_serial_port(dev);
1196 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1197 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1198 char buf[1];
1199 int v = simple_strtoul(valbuf, NULL, 10);
1200 int rv = 0;
5c09d144 1201
441b62c1 1202 dbg("%s: setting latency timer = %i", __func__, v);
5c09d144 1203
1da177e4
LT		 1204 rv = usb_control_msg(udev,
1205 usb_sndctrlpipe(udev, 0),
1206 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1207 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1208 v, priv->interface,
1da177e4 1209 buf, 0, WDR_TIMEOUT);
5c09d144 1210
1da177e4 1211 if (rv < 0) {
898eb71c 1212 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1da177e4
LT		 1213 return -EIO;
1214 }
5c09d144 1215
1da177e4
LT		 1216 return count;
1217}
1218
1219/* Write an event character directly to the FTDI register. The ASCII
1220 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1221static ssize_t store_event_char(struct device *dev,
1222 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1223{
1224 struct usb_serial_port *port = to_usb_serial_port(dev);
1225 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1226 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1227 char buf[1];
1228 int v = simple_strtoul(valbuf, NULL, 10);
1229 int rv = 0;
5c09d144 1230
441b62c1 1231 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1232
1da177e4
LT		 1233 rv = usb_control_msg(udev,
1234 usb_sndctrlpipe(udev, 0),
1235 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1236 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1237 v, priv->interface,
1da177e4 1238 buf, 0, WDR_TIMEOUT);
5c09d144 1239
1da177e4
LT		 1240 if (rv < 0) {
1241 dbg("Unable to write event character: %i", rv);
1242 return -EIO;
1243 }
5c09d144 1244
1da177e4
LT		 1245 return count;
1246}
1247
464cbb24
AC		 1248static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1249 store_latency_timer);
1da177e4
LT		 1250static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1251
12bdbe03 1252static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1253{
12bdbe03 1254 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1255 int retval = 0;
1da177e4 1256
464cbb24 1257 dbg("%s", __func__);
13f4db9e 1258
1da177e4
LT		 1259 /* XXX I've no idea if the original SIO supports the event_char
1260 * sysfs parameter, so I'm playing it safe. */
1261 if (priv->chip_type != SIO) {
1262 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1263 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1264 if ((!retval) &&
97cd49eb
SM		 1265 (priv->chip_type == FT232BM ||
1266 priv->chip_type == FT2232C ||
1267 priv->chip_type == FT232RL)) {
12bdbe03 1268 retval = device_create_file(&port->dev,
13f4db9e 1269 &dev_attr_latency_timer);
1da177e4
LT		 1270 }
1271 }
13f4db9e 1272 return retval;
1da177e4
LT		 1273}
1274
12bdbe03 1275static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1276{
12bdbe03 1277 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1278
464cbb24 1279 dbg("%s", __func__);
1da177e4 1280
1da177e4
LT		 1281 /* XXX see create_sysfs_attrs */
1282 if (priv->chip_type != SIO) {
12bdbe03 1283 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1284 if (priv->chip_type == FT232BM ||
1285 priv->chip_type == FT2232C ||
1286 priv->chip_type == FT232RL) {
12bdbe03 1287 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1288 }
1289 }
5c09d144 1290
1da177e4
LT		 1291}
1292
1293/*
1294 * ***************************************************************************
1295 * FTDI driver specific functions
1296 * ***************************************************************************
1297 */
1298
8f977e42 1299/* Probe function to check for special devices */
464cbb24
AC		 1300static int ftdi_sio_probe(struct usb_serial *serial,
1301 const struct usb_device_id *id)
8f977e42 1302{
464cbb24
AC		 1303 struct ftdi_sio_quirk *quirk =
1304 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1305
1306 if (quirk && quirk->probe) {
1307 int ret = quirk->probe(serial);
1308 if (ret != 0)
1309 return ret;
1310 }
1311
8f977e42
IA		 1312 usb_set_serial_data(serial, (void *)id->driver_info);
1313
fa91d43b 1314 return 0;
8f977e42
IA		 1315}
1316
12bdbe03 1317static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1318{
1da177e4 1319 struct ftdi_private *priv;
0ffbbe25
ON		 1320 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1321
13f4db9e 1322
464cbb24 1323 dbg("%s", __func__);
1da177e4 1324
80b6ca48 1325 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24
AC		 1326 if (!priv) {
1327 err("%s- kmalloc(%Zd) failed.", __func__,
1328 sizeof(struct ftdi_private));
1da177e4
LT		 1329 return -ENOMEM;
1330 }
1da177e4
LT		 1331
1332 spin_lock_init(&priv->rx_lock);
22465400 1333 spin_lock_init(&priv->tx_lock);
464cbb24 1334 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1335 /* This will push the characters through immediately rather
1336 than queue a task to deliver them */
1337 priv->flags = ASYNC_LOW_LATENCY;
1338
0ffbbe25
ON		 1339 if (quirk && quirk->port_probe)
1340 quirk->port_probe(priv);
1341
1da177e4 1342 /* Increase the size of read buffers */
1bc3c9e1 1343 kfree(port->bulk_in_buffer);
464cbb24 1344 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1345 if (!port->bulk_in_buffer) {
464cbb24 1346 kfree(priv);
1da177e4
LT		 1347 return -ENOMEM;
1348 }
1349 if (port->read_urb) {
1350 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1351 port->read_urb->transfer_buffer_length = BUFSZ;
1352 }
1353
c4028958
DH		 1354 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1355 priv->port = port;
76854cea 1356
1da177e4
LT		 1357 /* Free port's existing write urb and transfer buffer. */
1358 if (port->write_urb) {
464cbb24 1359 usb_free_urb(port->write_urb);
1da177e4
LT		 1360 port->write_urb = NULL;
1361 }
1bc3c9e1
JJ		 1362 kfree(port->bulk_out_buffer);
1363 port->bulk_out_buffer = NULL;
1da177e4 1364
12bdbe03 1365 usb_set_serial_port_data(port, priv);
1da177e4 1366
464cbb24 1367 ftdi_determine_type(port);
12bdbe03
JR		 1368 create_sysfs_attrs(port);
1369 return 0;
1370}
1da177e4 1371
8f977e42
IA		 1372/* Setup for the USB-UIRT device, which requires hardwired
1373 * baudrate (38400 gets mapped to 312500) */
1da177e4 1374/* Called from usbserial:serial_probe */
464cbb24 1375static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1376{
464cbb24 1377 dbg("%s", __func__);
1da177e4 1378
1da177e4
LT		 1379 priv->flags |= ASYNC_SPD_CUST;
1380 priv->custom_divisor = 77;
669a6db1 1381 priv->force_baud = 38400;
8f977e42 1382} /* ftdi_USB_UIRT_setup */
1da177e4 1383
8f977e42
IA		 1384/* Setup for the HE-TIRA1 device, which requires hardwired
1385 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1386
1387static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1388{
464cbb24 1389 dbg("%s", __func__);
1da177e4 1390
1da177e4
LT		 1391 priv->flags |= ASYNC_SPD_CUST;
1392 priv->custom_divisor = 240;
669a6db1 1393 priv->force_baud = 38400;
1da177e4 1394 priv->force_rtscts = 1;
8f977e42 1395} /* ftdi_HE_TIRA1_setup */
1da177e4 1396
fa91d43b 1397/*
20734345
HW		 1398 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1399 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1400 * userspace using openocd.
fa91d43b 1401 */
20734345 1402static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1403{
1404 struct usb_device *udev = serial->dev;
1405 struct usb_interface *interface = serial->interface;
1406
464cbb24 1407 dbg("%s", __func__);
fa91d43b
TL		 1408
1409 if (interface == udev->actconfig->interface[0]) {
20734345 1410 info("Ignoring serial port reserved for JTAG");
fa91d43b
TL		 1411 return -ENODEV;
1412 }
1413
1414 return 0;
1415}
1da177e4 1416
546d7eec
KV		 1417/*
1418 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1419 * We have to correct it if we want to read from it.
1420 */
1421static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1422{
1423 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1424 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1425
1426 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1427 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
546d7eec
KV		 1428 info("Fixing invalid wMaxPacketSize on read pipe");
1429 }
1430
1431 return 0;
1432}
1433
5c09d144 1434/* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1da177e4
LT		 1435 * it is called when the usb device is disconnected
1436 *
1437 * usbserial:usb_serial_disconnect
1438 * calls __serial_close for each open of the port
1439 * shutdown is called then (ie ftdi_shutdown)
1440 */
464cbb24 1441static void ftdi_shutdown(struct usb_serial *serial)
12bdbe03 1442{
441b62c1 1443 dbg("%s", __func__);
12bdbe03 1444}
5c09d144 1445
12bdbe03
JR		 1446static int ftdi_sio_port_remove(struct usb_serial_port *port)
1447{
1da177e4
LT		 1448 struct ftdi_private *priv = usb_get_serial_port_data(port);
1449
441b62c1 1450 dbg("%s", __func__);
1da177e4 1451
12bdbe03 1452 remove_sysfs_attrs(port);
5c09d144
DB		 1453
1454 /* all open ports are closed at this point
464cbb24 1455 * (by usbserial.c:__serial_close, which calls ftdi_close)
1da177e4
LT		 1456 */
1457
1458 if (priv) {
1459 usb_set_serial_port_data(port, NULL);
1460 kfree(priv);
1461 }
1da177e4 1462
12bdbe03
JR		 1463 return 0;
1464}
1da177e4 1465
95da310e
AC		 1466static int ftdi_open(struct tty_struct *tty,
1467 struct usb_serial_port *port, struct file *filp)
1da177e4 1468{ /* ftdi_open */
1da177e4
LT		 1469 struct usb_device *dev = port->serial->dev;
1470 struct ftdi_private *priv = usb_get_serial_port_data(port);
1471 unsigned long flags;
5c09d144 1472
1da177e4
LT		 1473 int result = 0;
1474 char buf[1]; /* Needed for the usb_control_msg I think */
1475
441b62c1 1476 dbg("%s", __func__);
1da177e4 1477
22465400
IA		 1478 spin_lock_irqsave(&priv->tx_lock, flags);
1479 priv->tx_bytes = 0;
1480 spin_unlock_irqrestore(&priv->tx_lock, flags);
1481 spin_lock_irqsave(&priv->rx_lock, flags);
1482 priv->rx_bytes = 0;
1483 spin_unlock_irqrestore(&priv->rx_lock, flags);
1484
95da310e
AC		 1485 if (tty)
1486 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4
LT		 1487
1488 /* No error checking for this (will get errors later anyway) */
1489 /* See ftdi_sio.h for description of what is reset */
1490 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1491 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1492 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1493 priv->interface, buf, 0, WDR_TIMEOUT);
1494
1495 /* Termios defaults are set by usb_serial_init. We don't change
1496 port->tty->termios - this would loose speed settings, etc.
1497 This is same behaviour as serial.c/rs_open() - Kuba */
1498
1499 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1500 if (tty)
1501 ftdi_set_termios(tty, port, tty->termios);
1da177e4
LT		 1502
1503 /* FIXME: Flow control might be enabled, so it should be checked -
1504 we have no control of defaults! */
1505 /* Turn on RTS and DTR since we are not flow controlling by default */
74ede0ff 1506 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 1507
1508 /* Not throttled */
1509 spin_lock_irqsave(&priv->rx_lock, flags);
1510 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1511 spin_unlock_irqrestore(&priv->rx_lock, flags);
1512
1513 /* Start reading from the device */
76854cea 1514 priv->rx_processed = 0;
1da177e4 1515 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1516 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1517 port->read_urb->transfer_buffer,
1518 port->read_urb->transfer_buffer_length,
1519 ftdi_read_bulk_callback, port);
1da177e4
LT		 1520 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1521 if (result)
464cbb24
AC		 1522 err("%s - failed submitting read urb, error %d",
1523 __func__, result);
1da177e4
LT		 1524
1525
1526 return result;
1527} /* ftdi_open */
1528
1529
1530
5c09d144 1531/*
1da177e4
LT		 1532 * usbserial:__serial_close only calls ftdi_close if the point is open
1533 *
1534 * This only gets called when it is the last close
5c09d144
DB		 1535 *
1536 *
1da177e4
LT		 1537 */
1538
95da310e
AC		 1539static void ftdi_close(struct tty_struct *tty,
1540 struct usb_serial_port *port, struct file *filp)
1da177e4 1541{ /* ftdi_close */
95da310e 1542 unsigned int c_cflag = tty->termios->c_cflag;
1da177e4
LT		 1543 struct ftdi_private *priv = usb_get_serial_port_data(port);
1544 char buf[1];
1545
441b62c1 1546 dbg("%s", __func__);
1da177e4 1547
95bef012 1548 mutex_lock(&port->serial->disc_mutex);
464cbb24 1549 if (c_cflag & HUPCL && !port->serial->disconnected) {
1da177e4 1550 /* Disable flow control */
5c09d144 1551 if (usb_control_msg(port->serial->dev,
1da177e4
LT		 1552 usb_sndctrlpipe(port->serial->dev, 0),
1553 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1554 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1555 0, priv->interface, buf, 0,
1556 WDR_TIMEOUT) < 0) {
1557 err("error from flowcontrol urb");
5c09d144 1558 }
1da177e4 1559
74ede0ff
IA		 1560 /* drop RTS and DTR */
1561 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4 1562 } /* Note change no line if hupcl is off */
95bef012 1563 mutex_unlock(&port->serial->disc_mutex);
76854cea
IA		 1564
1565 /* cancel any scheduled reading */
1566 cancel_delayed_work(&priv->rx_work);
1567 flush_scheduled_work();
5c09d144 1568
1da177e4 1569 /* shutdown our bulk read */
794c944e 1570 usb_kill_urb(port->read_urb);
1da177e4
LT		 1571} /* ftdi_close */
1572
1573
5c09d144 1574
1da177e4
LT		 1575/* The SIO requires the first byte to have:
1576 * B0 1
1577 * B1 0
1578 * B2..7 length of message excluding byte 0
1579 *
1580 * The new devices do not require this byte
1581 */
95da310e 1582static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1583 const unsigned char *buf, int count)
1584{ /* ftdi_write */
1585 struct ftdi_private *priv = usb_get_serial_port_data(port);
1586 struct urb *urb;
1587 unsigned char *buffer;
1588 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1589 int status;
1590 int transfer_size;
22465400 1591 unsigned long flags;
1da177e4 1592
441b62c1 1593 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1594
1595 if (count == 0) {
1596 dbg("write request of 0 bytes");
1597 return 0;
1598 }
22465400
IA		 1599 spin_lock_irqsave(&priv->tx_lock, flags);
1600 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1601 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1602 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1603 return 0;
1604 }
62127a58 1605 priv->tx_outstanding_urbs++;
22465400 1606 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1607
1da177e4 1608 data_offset = priv->write_offset;
464cbb24 1609 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1610
1611 /* Determine total transfer size */
1612 transfer_size = count;
1613 if (data_offset > 0) {
1614 /* Original sio needs control bytes too... */
1615 transfer_size += (data_offset *
1616 ((count + (PKTSZ - 1 - data_offset)) /
1617 (PKTSZ - data_offset)));
1618 }
1619
464cbb24 1620 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1621 if (!buffer) {
441b62c1 1622 err("%s ran out of kernel memory for urb ...", __func__);
62127a58
ON		 1623 count = -ENOMEM;
1624 goto error_no_buffer;
1da177e4
LT		 1625 }
1626
1627 urb = usb_alloc_urb(0, GFP_ATOMIC);
1628 if (!urb) {
441b62c1 1629 err("%s - no more free urbs", __func__);
62127a58
ON		 1630 count = -ENOMEM;
1631 goto error_no_urb;
1da177e4
LT		 1632 }
1633
1634 /* Copy data */
1635 if (data_offset > 0) {
464cbb24
AC		 1636 /* Original sio requires control byte at start of
1637 each packet. */
1da177e4
LT		 1638 int user_pktsz = PKTSZ - data_offset;
1639 int todo = count;
1640 unsigned char *first_byte = buffer;
1641 const unsigned char *current_position = buf;
1642
1643 while (todo > 0) {
464cbb24 1644 if (user_pktsz > todo)
1da177e4 1645 user_pktsz = todo;
1da177e4 1646 /* Write the control byte at the front of the packet*/
5c09d144 1647 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1648 /* Copy data for packet */
464cbb24 1649 memcpy(first_byte + data_offset,
1da177e4
LT		 1650 current_position, user_pktsz);
1651 first_byte += user_pktsz + data_offset;
1652 current_position += user_pktsz;
1653 todo -= user_pktsz;
1654 }
1655 } else {
1656 /* No control byte required. */
1657 /* Copy in the data to send */
464cbb24 1658 memcpy(buffer, buf, count);
1da177e4
LT		 1659 }
1660
464cbb24
AC		 1661 usb_serial_debug_data(debug, &port->dev, __func__,
1662 transfer_size, buffer);
1da177e4
LT		 1663
1664 /* fill the buffer and send it */
5c09d144 1665 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1666 usb_sndbulkpipe(port->serial->dev,
1667 port->bulk_out_endpointAddress),
1668 buffer, transfer_size,
1669 ftdi_write_bulk_callback, port);
1da177e4
LT		 1670
1671 status = usb_submit_urb(urb, GFP_ATOMIC);
1672 if (status) {
464cbb24
AC		 1673 err("%s - failed submitting write urb, error %d",
1674 __func__, status);
1da177e4 1675 count = status;
62127a58 1676 goto error;
22465400
IA		 1677 } else {
1678 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1679 priv->tx_outstanding_bytes += count;
1680 priv->tx_bytes += count;
1681 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1682 }
1683
1684 /* we are done with this urb, so let the host driver
1685 * really free it when it is finished with it */
62127a58 1686 usb_free_urb(urb);
1da177e4 1687
441b62c1 1688 dbg("%s write returning: %d", __func__, count);
1da177e4 1689 return count;
62127a58
ON		 1690error:
1691 usb_free_urb(urb);
1692error_no_urb:
464cbb24 1693 kfree(buffer);
62127a58
ON		 1694error_no_buffer:
1695 spin_lock_irqsave(&priv->tx_lock, flags);
1696 priv->tx_outstanding_urbs--;
1697 spin_unlock_irqrestore(&priv->tx_lock, flags);
1698 return count;
1da177e4
LT		 1699} /* ftdi_write */
1700
1701
1702/* This function may get called when the device is closed */
1703
464cbb24 1704static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1705{
22465400 1706 unsigned long flags;
cdc97792 1707 struct usb_serial_port *port = urb->context;
22465400
IA		 1708 struct ftdi_private *priv;
1709 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1710 unsigned long countback;
0fb0aa18 1711 int status = urb->status;
1da177e4
LT		 1712
1713 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1714 kfree(urb->transfer_buffer);
1da177e4 1715
441b62c1 1716 dbg("%s - port %d", __func__, port->number);
5c09d144 1717
0fb0aa18
GKH		 1718 if (status) {
1719 dbg("nonzero write bulk status received: %d", status);
1da177e4
LT		 1720 return;
1721 }
1722
22465400
IA		 1723 priv = usb_get_serial_port_data(port);
1724 if (!priv) {
441b62c1 1725 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1726 return;
1727 }
1728 /* account for transferred data */
1729 countback = urb->actual_length;
1730 data_offset = priv->write_offset;
1731 if (data_offset > 0) {
1732 /* Subtract the control bytes */
dfa5ec79 1733 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
22465400
IA		 1734 }
1735 spin_lock_irqsave(&priv->tx_lock, flags);
1736 --priv->tx_outstanding_urbs;
1737 priv->tx_outstanding_bytes -= countback;
1738 spin_unlock_irqrestore(&priv->tx_lock, flags);
1739
cf2c7481 1740 usb_serial_port_softint(port);
1da177e4
LT		 1741} /* ftdi_write_bulk_callback */
1742
1743
95da310e 1744static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1745{
95da310e 1746 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1747 struct ftdi_private *priv = usb_get_serial_port_data(port);
1748 int room;
1749 unsigned long flags;
1750
441b62c1 1751 dbg("%s - port %d", __func__, port->number);
1da177e4 1752
22465400
IA		 1753 spin_lock_irqsave(&priv->tx_lock, flags);
1754 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1755 /*
1756 * We really can take anything the user throws at us
1757 * but let's pick a nice big number to tell the tty
1758 * layer that we have lots of free space
1759 */
1760 room = 2048;
1761 } else {
1762 room = 0;
1763 }
1764 spin_unlock_irqrestore(&priv->tx_lock, flags);
1765 return room;
95da310e 1766}
1da177e4 1767
95da310e
AC		 1768static int ftdi_chars_in_buffer(struct tty_struct *tty)
1769{
1770 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1771 struct ftdi_private *priv = usb_get_serial_port_data(port);
1772 int buffered;
1773 unsigned long flags;
1774
441b62c1 1775 dbg("%s - port %d", __func__, port->number);
1da177e4 1776
22465400
IA		 1777 spin_lock_irqsave(&priv->tx_lock, flags);
1778 buffered = (int)priv->tx_outstanding_bytes;
1779 spin_unlock_irqrestore(&priv->tx_lock, flags);
1780 if (buffered < 0) {
441b62c1 1781 err("%s outstanding tx bytes is negative!", __func__);
22465400
IA		 1782 buffered = 0;
1783 }
1784 return buffered;
95da310e 1785}
1da177e4 1786
95da310e
AC		 1787static void ftdi_read_bulk_callback(struct urb *urb)
1788{
cdc97792 1789 struct usb_serial_port *port = urb->context;
1da177e4
LT		 1790 struct tty_struct *tty;
1791 struct ftdi_private *priv;
22465400
IA		 1792 unsigned long countread;
1793 unsigned long flags;
0fb0aa18 1794 int status = urb->status;
1da177e4
LT		 1795
1796 if (urb->number_of_packets > 0) {
464cbb24
AC		 1797 err("%s transfer_buffer_length %d actual_length %d number of packets %d",
1798 __func__,
1799 urb->transfer_buffer_length,
1800 urb->actual_length, urb->number_of_packets);
1801 err("%s transfer_flags %x ", __func__, urb->transfer_flags);
1da177e4
LT		 1802 }
1803
441b62c1 1804 dbg("%s - port %d", __func__, port->number);
1da177e4 1805
95da310e 1806 if (port->port.count <= 0)
1da177e4
LT		 1807 return;
1808
95da310e 1809 tty = port->port.tty;
1da177e4 1810 if (!tty) {
464cbb24 1811 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1812 return;
1813 }
1814
1815 priv = usb_get_serial_port_data(port);
1816 if (!priv) {
441b62c1 1817 dbg("%s - bad port private data pointer - exiting", __func__);
1da177e4
LT		 1818 return;
1819 }
1820
464cbb24 1821 if (urb != port->read_urb)
441b62c1 1822 err("%s - Not my urb!", __func__);
1da177e4 1823
0fb0aa18 1824 if (status) {
464cbb24
AC		 1825 /* This will happen at close every time so it is a dbg not an
1826 err */
1827 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
1da177e4
LT		 1828 return;
1829 }
1830
22465400
IA		 1831 /* count data bytes, but not status bytes */
1832 countread = urb->actual_length;
dfa5ec79 1833 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
22465400
IA		 1834 spin_lock_irqsave(&priv->rx_lock, flags);
1835 priv->rx_bytes += countread;
1836 spin_unlock_irqrestore(&priv->rx_lock, flags);
1837
c4028958 1838 ftdi_process_read(&priv->rx_work.work);
1da177e4
LT		 1839
1840} /* ftdi_read_bulk_callback */
1841
1842
464cbb24 1843static void ftdi_process_read(struct work_struct *work)
1da177e4 1844{ /* ftdi_process_read */
c4028958
DH		 1845 struct ftdi_private *priv =
1846 container_of(work, struct ftdi_private, rx_work.work);
1847 struct usb_serial_port *port = priv->port;
1da177e4
LT		 1848 struct urb *urb;
1849 struct tty_struct *tty;
1da177e4 1850 char error_flag;
5c09d144 1851 unsigned char *data;
1da177e4
LT		 1852
1853 int i;
1854 int result;
1855 int need_flip;
1856 int packet_offset;
76854cea 1857 unsigned long flags;
1da177e4 1858
441b62c1 1859 dbg("%s - port %d", __func__, port->number);
1da177e4 1860
95da310e 1861 if (port->port.count <= 0)
1da177e4
LT		 1862 return;
1863
95da310e 1864 tty = port->port.tty;
1da177e4 1865 if (!tty) {
464cbb24 1866 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 1867 return;
1868 }
1869
1870 priv = usb_get_serial_port_data(port);
1871 if (!priv) {
441b62c1 1872 dbg("%s - bad port private data pointer - exiting", __func__);
1da177e4
LT		 1873 return;
1874 }
1875
1876 urb = port->read_urb;
1877 if (!urb) {
441b62c1 1878 dbg("%s - bad read_urb pointer - exiting", __func__);
1da177e4
LT		 1879 return;
1880 }
1881
1882 data = urb->transfer_buffer;
1883
76854cea 1884 if (priv->rx_processed) {
441b62c1 1885 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 1886 priv->rx_processed,
1887 urb->actual_length - priv->rx_processed);
1da177e4 1888 } else {
76854cea 1889 /* The first two bytes of every read packet are status */
464cbb24
AC		 1890 if (urb->actual_length > 2)
1891 usb_serial_debug_data(debug, &port->dev, __func__,
1892 urb->actual_length, data);
1893 else
1894 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 1895 }
1da177e4
LT		 1896
1897
1898 /* TO DO -- check for hung up line and handle appropriately: */
1899 /* send hangup */
1900 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1901 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1902
1903 need_flip = 0;
464cbb24
AC		 1904 for (packet_offset = priv->rx_processed;
1905 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
76854cea
IA		 1906 int length;
1907
464cbb24
AC		 1908 /* Compare new line status to the old one, signal if different/
1909 N.B. packet may be processed more than once, but differences
1910 are only processed once. */
1da177e4 1911 if (priv != NULL) {
464cbb24
AC		 1912 char new_status = data[packet_offset + 0] &
1913 FTDI_STATUS_B0_MASK;
1da177e4 1914 if (new_status != priv->prev_status) {
464cbb24
AC		 1915 priv->diff_status |=
1916 new_status ^ priv->prev_status;
1da177e4
LT		 1917 wake_up_interruptible(&priv->delta_msr_wait);
1918 priv->prev_status = new_status;
1919 }
1920 }
1921
76854cea
IA		 1922 length = min(PKTSZ, urb->actual_length-packet_offset)-2;
1923 if (length < 0) {
441b62c1 1924 err("%s - bad packet length: %d", __func__, length+2);
76854cea
IA		 1925 length = 0;
1926 }
1927
76854cea 1928 if (priv->rx_flags & THROTTLED) {
441b62c1 1929 dbg("%s - throttled", __func__);
76854cea
IA		 1930 break;
1931 }
33f0f88f 1932 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 1933 /* break out & wait for throttling/unthrottling to
1934 happen */
441b62c1 1935 dbg("%s - receive room low", __func__);
76854cea
IA		 1936 break;
1937 }
1938
1da177e4
LT		 1939 /* Handle errors and break */
1940 error_flag = TTY_NORMAL;
464cbb24
AC		 1941 /* Although the device uses a bitmask and hence can have
1942 multiple errors on a packet - the order here sets the
1943 priority the error is returned to the tty layer */
1da177e4 1944
464cbb24 1945 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 1946 error_flag = TTY_OVERRUN;
1947 dbg("OVERRRUN error");
1948 }
464cbb24 1949 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 1950 error_flag = TTY_BREAK;
1951 dbg("BREAK received");
1952 }
464cbb24 1953 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 1954 error_flag = TTY_PARITY;
1955 dbg("PARITY error");
1956 }
464cbb24 1957 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 1958 error_flag = TTY_FRAME;
1959 dbg("FRAMING error");
1960 }
76854cea
IA		 1961 if (length > 0) {
1962 for (i = 2; i < length+2; i++) {
5c09d144 1963 /* Note that the error flag is duplicated for
1da177e4
LT		 1964 every character received since we don't know
1965 which character it applied to */
464cbb24
AC		 1966 tty_insert_flip_char(tty,
1967 data[packet_offset + i], error_flag);
1da177e4
LT		 1968 }
1969 need_flip = 1;
1970 }
1971
1972#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1973 /* if a parity error is detected you get status packets forever
1974 until a character is sent without a parity error.
464cbb24
AC		 1975 This doesn't work well since the application receives a
1976 never ending stream of bad data - even though new data
1977 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 1978 However - this might make sense for framing errors and so on
1da177e4
LT		 1979 so I am leaving the code in for now.
1980 */
1981 else {
464cbb24 1982 if (error_flag != TTY_NORMAL) {
1da177e4 1983 dbg("error_flag is not normal");
464cbb24
AC		 1984 /* In this case it is just status - if that is
1985 an error send a bad character */
1986 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 1987 tty_flip_buffer_push(tty);
1da177e4
LT		 1988 tty_insert_flip_char(tty, 0xff, error_flag);
1989 need_flip = 1;
1990 }
1991 }
1992#endif
1993 } /* "for(packet_offset=0..." */
1994
1995 /* Low latency */
464cbb24 1996 if (need_flip)
1da177e4 1997 tty_flip_buffer_push(tty);
1da177e4 1998
76854cea
IA		 1999 if (packet_offset < urb->actual_length) {
2000 /* not completely processed - record progress */
2001 priv->rx_processed = packet_offset;
2002 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2003 __func__, packet_offset,
76854cea
IA		 2004 urb->actual_length - packet_offset);
2005 /* check if we were throttled while processing */
2006 spin_lock_irqsave(&priv->rx_lock, flags);
2007 if (priv->rx_flags & THROTTLED) {
2008 priv->rx_flags |= ACTUALLY_THROTTLED;
2009 spin_unlock_irqrestore(&priv->rx_lock, flags);
2010 dbg("%s - deferring remainder until unthrottled",
441b62c1 2011 __func__);
76854cea
IA		 2012 return;
2013 }
2014 spin_unlock_irqrestore(&priv->rx_lock, flags);
2015 /* if the port is closed stop trying to read */
464cbb24 2016 if (port->port.count > 0)
76854cea
IA		 2017 /* delay processing of remainder */
2018 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2019 else
441b62c1 2020 dbg("%s - port is closed", __func__);
76854cea
IA		 2021 return;
2022 }
2023
2024 /* urb is completely processed */
2025 priv->rx_processed = 0;
2026
1da177e4 2027 /* if the port is closed stop trying to read */
464cbb24 2028 if (port->port.count > 0) {
1da177e4 2029 /* Continue trying to always read */
5c09d144 2030 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2031 usb_rcvbulkpipe(port->serial->dev,
2032 port->bulk_in_endpointAddress),
2033 port->read_urb->transfer_buffer,
2034 port->read_urb->transfer_buffer_length,
2035 ftdi_read_bulk_callback, port);
1da177e4
LT		 2036
2037 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2038 if (result)
464cbb24
AC		 2039 err("%s - failed resubmitting read urb, error %d",
2040 __func__, result);
1da177e4 2041 }
1da177e4
LT		 2042} /* ftdi_process_read */
2043
2044
95da310e 2045static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2046{
95da310e 2047 struct usb_serial_port *port = tty->driver_data;
1da177e4 2048 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2049 __u16 urb_value = 0;
1da177e4 2050 char buf[1];
5c09d144 2051
1da177e4
LT		 2052 /* break_state = -1 to turn on break, and 0 to turn off break */
2053 /* see drivers/char/tty_io.c to see it used */
2054 /* last_set_data_urb_value NEVER has the break bit set in it */
2055
464cbb24 2056 if (break_state)
1da177e4 2057 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2058 else
5c09d144 2059 urb_value = priv->last_set_data_urb_value;
5c09d144 2060
464cbb24
AC		 2061 if (usb_control_msg(port->serial->dev,
2062 usb_sndctrlpipe(port->serial->dev, 0),
2063 FTDI_SIO_SET_DATA_REQUEST,
2064 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2065 urb_value , priv->interface,
2066 buf, 0, WDR_TIMEOUT) < 0) {
2067 err("%s FAILED to enable/disable break state (state was %d)",
2068 __func__, break_state);
5c09d144 2069 }
1da177e4 2070
464cbb24
AC		 2071 dbg("%s break state is %d - urb is %d", __func__,
2072 break_state, urb_value);
5c09d144 2073
1da177e4
LT		 2074}
2075
2076
2077/* old_termios contains the original termios settings and tty->termios contains
2078 * the new setting to be used
2079 * WARNING: set_termios calls this with old_termios in kernel space
2080 */
2081
95da310e
AC		 2082static void ftdi_set_termios(struct tty_struct *tty,
2083 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2084{ /* ftdi_termios */
2085 struct usb_device *dev = port->serial->dev;
1da177e4 2086 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2087 struct ktermios *termios = tty->termios;
669a6db1 2088 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2089 __u16 urb_value; /* will hold the new flags */
2090 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2091
464cbb24 2092 /* Added for xon/xoff support */
669a6db1 2093 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2094 unsigned char vstop;
2095 unsigned char vstart;
5c09d144 2096
441b62c1 2097 dbg("%s", __func__);
1da177e4 2098
464cbb24
AC		 2099 /* Force baud rate if this device requires it, unless it is set to
2100 B0. */
669a6db1 2101 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2102 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2103 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2104 priv->force_baud);
1da177e4
LT		 2105 }
2106
2107 /* Force RTS-CTS if this device requires it. */
2108 if (priv->force_rtscts) {
441b62c1 2109 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2110 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2111 }
2112
669a6db1 2113 cflag = termios->c_cflag;
1da177e4 2114
5c09d144
DB		 2115 /* FIXME -For this cut I don't care if the line is really changing or
2116 not - so just do the change regardless - should be able to
1da177e4 2117 compare old_termios and tty->termios */
5c09d144 2118 /* NOTE These routines can get interrupted by
464cbb24
AC		 2119 ftdi_sio_read_bulk_callback - need to examine what this means -
2120 don't see any problems yet */
5c09d144 2121
1da177e4 2122 /* Set number of data bits, parity, stop bits */
5c09d144 2123
669a6db1
AC		 2124 termios->c_cflag &= ~CMSPAR;
2125
1da177e4
LT		 2126 urb_value = 0;
2127 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2128 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2129 urb_value |= (cflag & PARENB ?
2130 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2131 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2132 FTDI_SIO_SET_DATA_PARITY_NONE);
2133 if (cflag & CSIZE) {
2134 switch (cflag & CSIZE) {
2135 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2136 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2137 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2138 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2139 default:
2140 err("CSIZE was set but not CS5-CS8");
2141 }
2142 }
2143
464cbb24
AC		 2144 /* This is needed by the break command since it uses the same command
2145 - but is or'ed with this value */
1da177e4 2146 priv->last_set_data_urb_value = urb_value;
5c09d144 2147
1da177e4 2148 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2149 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2150 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2151 urb_value , priv->interface,
279e1545 2152 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
441b62c1 2153 err("%s FAILED to set databits/stopbits/parity", __func__);
5c09d144 2154 }
1da177e4
LT		 2155
2156 /* Now do the baudrate */
464cbb24 2157 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2158 /* Disable flow control */
2159 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2160 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2161 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2162 0, priv->interface,
1da177e4 2163 buf, 0, WDR_TIMEOUT) < 0) {
441b62c1 2164 err("%s error from disable flowcontrol urb", __func__);
5c09d144 2165 }
1da177e4 2166 /* Drop RTS and DTR */
74ede0ff 2167 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2168 } else {
2169 /* set the baudrate determined before */
464cbb24 2170 if (change_speed(tty, port))
441b62c1 2171 err("%s urb failed to set baudrate", __func__);
72a755fc 2172 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2173 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2174 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2175 }
2176
2177 /* Set flow control */
2178 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2179 if (cflag & CRTSCTS) {
441b62c1 2180 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2181 if (usb_control_msg(dev,
1da177e4 2182 usb_sndctrlpipe(dev, 0),
5c09d144 2183 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2184 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2185 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2186 buf, 0, WDR_TIMEOUT) < 0) {
2187 err("urb failed to set to rts/cts flow control");
5c09d144
DB		 2188 }
2189
2190 } else {
1da177e4
LT		 2191 /*
2192 * Xon/Xoff code
2193 *
464cbb24
AC		 2194 * Check the IXOFF status in the iflag component of the
2195 * termios structure. If IXOFF is not set, the pre-xon/xoff
2196 * code is executed.
2197 */
1da177e4 2198 if (iflag & IXOFF) {
464cbb24
AC		 2199 dbg("%s request to enable xonxoff iflag=%04x",
2200 __func__, iflag);
2201 /* Try to enable the XON/XOFF on the ftdi_sio
2202 * Set the vstart and vstop -- could have been done up
2203 * above where a lot of other dereferencing is done but
2204 * that would be very inefficient as vstart and vstop
2205 * are not always needed.
2206 */
669a6db1
AC		 2207 vstart = termios->c_cc[VSTART];
2208 vstop = termios->c_cc[VSTOP];
464cbb24 2209 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2210
2211 if (usb_control_msg(dev,
2212 usb_sndctrlpipe(dev, 0),
2213 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2214 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2215 urb_value , (FTDI_SIO_XON_XOFF_HS
2216 | priv->interface),
2217 buf, 0, WDR_TIMEOUT) < 0) {
2218 err("urb failed to set to xon/xoff flow control");
2219 }
2220 } else {
464cbb24
AC		 2221 /* else clause to only run if cflag ! CRTSCTS and iflag
2222 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2223 * stack - not by device */
441b62c1 2224 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2225 if (usb_control_msg(dev,
1da177e4 2226 usb_sndctrlpipe(dev, 0),
5c09d144 2227 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2228 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2229 0, priv->interface,
1da177e4
LT		 2230 buf, 0, WDR_TIMEOUT) < 0) {
2231 err("urb failed to clear flow control");
5c09d144 2232 }
1da177e4 2233 }
5c09d144 2234
1da177e4
LT		 2235 }
2236 return;
95da310e 2237}
1da177e4 2238
95da310e 2239static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2240{
95da310e 2241 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2242 struct ftdi_private *priv = usb_get_serial_port_data(port);
2243 unsigned char buf[2];
2244 int ret;
2245
441b62c1 2246 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2247 switch (priv->chip_type) {
2248 case SIO:
2249 /* Request the status from the device */
464cbb24
AC		 2250 ret = usb_control_msg(port->serial->dev,
2251 usb_rcvctrlpipe(port->serial->dev, 0),
2252 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2253 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2254 0, 0,
2255 buf, 1, WDR_TIMEOUT);
2256 if (ret < 0) {
441b62c1 2257 err("%s Could not get modem status of device - err: %d", __func__,
1da177e4 2258 ret);
464cbb24 2259 return ret;
1da177e4
LT		 2260 }
2261 break;
2262 case FT8U232AM:
2263 case FT232BM:
2264 case FT2232C:
ed6e5282 2265 case FT232RL:
464cbb24
AC		 2266 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2267 value) - in the same format as the data returned from the in
2268 point */
2269 ret = usb_control_msg(port->serial->dev,
2270 usb_rcvctrlpipe(port->serial->dev, 0),
2271 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2272 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2273 0, priv->interface,
2274 buf, 2, WDR_TIMEOUT);
2275 if (ret < 0) {
441b62c1 2276 err("%s Could not get modem status of device - err: %d", __func__,
1da177e4 2277 ret);
464cbb24 2278 return ret;
1da177e4
LT		 2279 }
2280 break;
2281 default:
2282 return -EFAULT;
2283 break;
2284 }
5c09d144 2285
1da177e4
LT		 2286 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2287 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2288 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2289 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2290 priv->last_dtr_rts;
1da177e4
LT		 2291}
2292
464cbb24 2293static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2294 unsigned int set, unsigned int clear)
1da177e4 2295{
95da310e 2296 struct usb_serial_port *port = tty->driver_data;
441b62c1 2297 dbg("%s TIOCMSET", __func__);
74ede0ff 2298 return update_mctrl(port, set, clear);
1da177e4
LT		 2299}
2300
2301
464cbb24
AC		 2302static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2303 unsigned int cmd, unsigned long arg)
1da177e4 2304{
95da310e 2305 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2306 struct ftdi_private *priv = usb_get_serial_port_data(port);
2307
441b62c1 2308 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2309
2310 /* Based on code from acm.c and others */
2311 switch (cmd) {
2312
1da177e4 2313 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2314 return get_serial_info(port,
2315 (struct serial_struct __user *) arg);
1da177e4
LT		 2316
2317 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2318 return set_serial_info(tty, port,
2319 (struct serial_struct __user *) arg);
1da177e4
LT		 2320
2321 /*
2322 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2323 * - mask passed in arg for lines of interest
2324 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2325 * Caller should use TIOCGICOUNT to see which one it was.
2326 *
2327 * This code is borrowed from linux/drivers/char/serial.c
2328 */
2329 case TIOCMIWAIT:
2330 while (priv != NULL) {
2331 interruptible_sleep_on(&priv->delta_msr_wait);
2332 /* see if a signal did it */
2333 if (signal_pending(current))
2334 return -ERESTARTSYS;
2335 else {
2336 char diff = priv->diff_status;
2337
464cbb24 2338 if (diff == 0)
1da177e4 2339 return -EIO; /* no change => error */
1da177e4
LT		 2340
2341 /* Consume all events */
2342 priv->diff_status = 0;
2343
464cbb24
AC		 2344 /* Return 0 if caller wanted to know about
2345 these bits */
2346 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2347 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2348 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2349 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2350 return 0;
2351 }
2352 /*
464cbb24
AC		 2353 * Otherwise caller can't care less about what
2354 * happened,and so we continue to wait for more
2355 * events.
1da177e4
LT		 2356 */
2357 }
2358 }
95da310e 2359 return 0;
1da177e4
LT		 2360 default:
2361 break;
1da177e4 2362 }
464cbb24
AC		 2363 /* This is not necessarily an error - turns out the higher layers
2364 * will do some ioctls themselves (see comment above)
1da177e4 2365 */
441b62c1 2366 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2367 return -ENOIOCTLCMD;
2368}
1da177e4 2369
95da310e 2370static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2371{
95da310e 2372 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2373 struct ftdi_private *priv = usb_get_serial_port_data(port);
2374 unsigned long flags;
2375
441b62c1 2376 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2377
2378 spin_lock_irqsave(&priv->rx_lock, flags);
2379 priv->rx_flags |= THROTTLED;
2380 spin_unlock_irqrestore(&priv->rx_lock, flags);
2381}
2382
2383
95da310e 2384static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2385{
95da310e 2386 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2387 struct ftdi_private *priv = usb_get_serial_port_data(port);
2388 int actually_throttled;
2389 unsigned long flags;
2390
441b62c1 2391 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2392
2393 spin_lock_irqsave(&priv->rx_lock, flags);
2394 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2395 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2396 spin_unlock_irqrestore(&priv->rx_lock, flags);
2397
2398 if (actually_throttled)
c4028958 2399 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2400}
2401
464cbb24 2402static int __init ftdi_init(void)
1da177e4
LT		 2403{
2404 int retval;
2405
441b62c1 2406 dbg("%s", __func__);
fdcb0a0f
IA		 2407 if (vendor > 0 && product > 0) {
2408 /* Add user specified VID/PID to reserved element of table. */
2409 int i;
2410 for (i = 0; id_table_combined[i].idVendor; i++)
2411 ;
2412 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2413 id_table_combined[i].idVendor = vendor;
2414 id_table_combined[i].idProduct = product;
2415 }
8f977e42 2416 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2417 if (retval)
8f977e42 2418 goto failed_sio_register;
1da177e4 2419 retval = usb_register(&ftdi_driver);
5c09d144 2420 if (retval)
1da177e4
LT		 2421 goto failed_usb_register;
2422
2423 info(DRIVER_VERSION ":" DRIVER_DESC);
2424 return 0;
2425failed_usb_register:
8f977e42
IA		 2426 usb_serial_deregister(&ftdi_sio_device);
2427failed_sio_register:
1da177e4
LT		 2428 return retval;
2429}
2430
2431
464cbb24 2432static void __exit ftdi_exit(void)
1da177e4
LT		 2433{
2434
441b62c1 2435 dbg("%s", __func__);
1da177e4 2436
464cbb24
AC		 2437 usb_deregister(&ftdi_driver);
2438 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2439
2440}
2441
2442
2443module_init(ftdi_init);
2444module_exit(ftdi_exit);
2445
464cbb24
AC		 2446MODULE_AUTHOR(DRIVER_AUTHOR);
2447MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2448MODULE_LICENSE("GPL");
2449
2450module_param(debug, bool, S_IRUGO | S_IWUSR);
2451MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2452module_param(vendor, ushort, 0);
2453MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2454 __MODULE_STRING(FTDI_VID)")");
2455module_param(product, ushort, 0);
2456MODULE_PARM_DESC(vendor, "User specified product ID");
1da177e4 2457
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