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Merge branch 'drm-radeon-kms' of git://git.kernel.org/pub/scm/linux/kernel/git/airlie...
[mirror_ubuntu-zesty-kernel.git] / drivers / usb / serial / ftdi_sio.c
CommitLineData
1da177e4
LT		 1/*
2 * USB FTDI SIO driver
3 *
5c09d144
DB		 4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
1da177e4
LT		 6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
5c09d144
DB		 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
1da177e4 14 *
464cbb24
AC		 15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
1da177e4
LT		 17 *
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
20 *
504b55cc
GKH		 21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 23 *
24 */
25
26/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27/* Thanx to FTDI for so kindly providing details of the protocol required */
28/* to talk to the device */
464cbb24
AC		 29/* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
1da177e4 31
1da177e4
LT		 32#include <linux/kernel.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/slab.h>
405f5571 36#include <linux/smp_lock.h>
1da177e4
LT		 37#include <linux/tty.h>
38#include <linux/tty_driver.h>
39#include <linux/tty_flip.h>
40#include <linux/module.h>
41#include <linux/spinlock.h>
464cbb24 42#include <linux/uaccess.h>
1da177e4
LT		 43#include <linux/usb.h>
44#include <linux/serial.h>
a969888c 45#include <linux/usb/serial.h>
1da177e4
LT		 46#include "ftdi_sio.h"
47
48/*
49 * Version Information
50 */
094c2e6d 51#define DRIVER_VERSION "v1.5.0"
1da177e4
LT		 52#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
53#define DRIVER_DESC "USB FTDI Serial Converters Driver"
54
55static int debug;
fdcb0a0f
IA		 56static __u16 vendor = FTDI_VID;
57static __u16 product;
1da177e4 58
0ffbbe25 59struct ftdi_private {
c45d6320 60 struct kref kref;
0ffbbe25 61 ftdi_chip_type_t chip_type;
464cbb24 62 /* type of device, either SIO or FT8U232AM */
0ffbbe25 63 int baud_base; /* baud base clock for divisor setting */
464cbb24
AC		 64 int custom_divisor; /* custom_divisor kludge, this is for
65 baud_base (different from what goes to the
66 chip!) */
0ffbbe25 67 __u16 last_set_data_urb_value ;
464cbb24
AC		 68 /* the last data state set - needed for doing
69 * a break
70 */
71 int write_offset; /* This is the offset in the usb data block to
72 * write the serial data - it varies between
73 * devices
0ffbbe25
ON		 74 */
75 int flags; /* some ASYNC_xxxx flags are supported */
76 unsigned long last_dtr_rts; /* saved modem control outputs */
464cbb24 77 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
0ffbbe25
ON		 78 char prev_status, diff_status; /* Used for TIOCMIWAIT */
79 __u8 rx_flags; /* receive state flags (throttling) */
80 spinlock_t rx_lock; /* spinlock for receive state */
81 struct delayed_work rx_work;
82 struct usb_serial_port *port;
83 int rx_processed;
84 unsigned long rx_bytes;
85
094c2e6d
MA		 86 __u16 interface; /* FT2232C, FT2232H or FT4232H port interface
87 (0 for FT232/245) */
0ffbbe25 88
464cbb24
AC		 89 speed_t force_baud; /* if non-zero, force the baud rate to
90 this value */
91 int force_rtscts; /* if non-zero, force RTS-CTS to always
92 be enabled */
0ffbbe25 93
557aaa7f 94 unsigned int latency; /* latency setting in use */
0ffbbe25
ON		 95 spinlock_t tx_lock; /* spinlock for transmit state */
96 unsigned long tx_bytes;
97 unsigned long tx_outstanding_bytes;
98 unsigned long tx_outstanding_urbs;
895f28ba 99 unsigned short max_packet_size;
0ffbbe25
ON		 100};
101
8f977e42
IA		 102/* struct ftdi_sio_quirk is used by devices requiring special attention. */
103struct ftdi_sio_quirk {
fa91d43b 104 int (*probe)(struct usb_serial *);
464cbb24
AC		 105 /* Special settings for probed ports. */
106 void (*port_probe)(struct ftdi_private *);
8f977e42
IA		 107};
108
464cbb24
AC		 109static int ftdi_jtag_probe(struct usb_serial *serial);
110static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
b760dac2 111static int ftdi_NDI_device_setup(struct usb_serial *serial);
464cbb24
AC		 112static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
113static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
8f977e42 114
20734345
HW		 115static struct ftdi_sio_quirk ftdi_jtag_quirk = {
116 .probe = ftdi_jtag_probe,
fa91d43b
TL		 117};
118
546d7eec
KV		 119static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
120 .probe = ftdi_mtxorb_hack_setup,
121};
122
b760dac2
MG		 123static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
124 .probe = ftdi_NDI_device_setup,
125};
126
8f977e42 127static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 128 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 129};
130
131static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 132 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 133};
134
135/*
136 * The 8U232AM has the same API as the sio except for:
137 * - it can support MUCH higher baudrates; up to:
138 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
139 * o 230400 at 12MHz
140 * so .. 8U232AM's baudrate setting codes are different
141 * - it has a two byte status code.
142 * - it returns characters every 16ms (the FTDI does it every 40ms)
143 *
144 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
145 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
146 * combinations in both tables.
8f977e42
IA		 147 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
148 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 149 */
150
151
1da177e4
LT		 152
153static struct usb_device_id id_table_combined [] = {
2011e924
JD		 154 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
01ba0856 156 { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
6e1ab3ed
PM		 157 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 165 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 166 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 167 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 168 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 169 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 170 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 173 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 174 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
094c2e6d 175 { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
c0f8d561 176 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 177 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 178 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
1da177e4
LT		 179 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
180 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
f2ee6955 181 { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
1da177e4
LT		 182 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
187 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
188 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
189 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
190 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
191 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
192 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 193 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
194 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
195 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
196 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
197 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
198 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
199 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
b34efeea 200 { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
464cbb24
AC		 201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
227 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
233 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
546d7eec 241 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
ebb3770c 247 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
273 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
275 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
277 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
279 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
281 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
283 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
ebb3770c 287 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
ebb3770c 289 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
ebb3770c 291 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
ebb3770c 293 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
ebb3770c 295 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24 296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
ebb3770c 297 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
464cbb24
AC		 298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
451 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
452 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
453 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
454 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
455 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
456 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
457 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
458 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
459 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
460 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
461 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
462 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
463 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
464 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 465 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 466 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 467 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 468 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
502 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
503 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
504 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
505 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
506 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
507 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
508 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
509 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
510 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
511 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
512 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
513 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
514 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
515 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
516 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
517 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 518 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
519 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
520 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
521 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 522 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
523 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
524 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
525 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 542 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 543 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 544 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 546 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 547 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 548 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 556 /*
42f8aa94
PS		 557 * Due to many user requests for multiple ELV devices we enable
558 * them by default.
e6ac4a40 559 */
42f8aa94
PS		 560 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
567 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
568 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
569 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
570 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
571 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
575 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
576 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 578 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 579 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
b5894a50 580 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
5c09d144
DB		 581 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
582 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
583 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
584 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
585 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
586 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
587 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 588 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
9d37ff64
JC		 589 { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
590 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
1da177e4
LT		 592 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
593 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
594 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
595 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 596 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 597 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
c3d36c45 598 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
ef31fec0 599 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 600 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 601 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
602 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
603 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
604 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 605 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 607 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
608 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
609 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
610 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
611 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
612 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
613 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
614 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 615 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 616 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 617 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 619 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
620 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 621 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
622 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
623 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
624 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 625 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
626 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 627 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 628 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
629 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 630 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
631 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 632 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 633 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 634 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 635 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 636 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
637 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 638 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 639 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 640 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 641 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
642 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 643 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 644 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 645 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 646 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 647 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 648 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 649 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 650 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 651 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 652 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 653 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
654 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
655 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 656 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
b760dac2
MG		 657 { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
658 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
659 { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
660 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
661 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
662 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
663 { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
664 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
665 { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
666 .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
822c7ef4 667 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 668 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
a5f62399 669 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
d7fde2d6 670 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 671 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 672 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 673 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 674 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
675 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
676 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
677 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
678 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
a00c3cad
FK		 679 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
680 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
681 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
682 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
14511412
KH		 683 { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
684 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 685 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 686 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
a18f80b4 687 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
96285cb8
GC		 688 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
689 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
45eeff84 690 { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
ca80801b 691 { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
7f82b6dd
AW		 692 { USB_DEVICE(ATMEL_VID, STK541_PID) },
693 { USB_DEVICE(DE_VID, STB_PID) },
694 { USB_DEVICE(DE_VID, WHT_PID) },
b0d65900
MH		 695 { USB_DEVICE(ADI_VID, ADI_GNICE_PID),
696 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
ae27d843 697 { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
1002bb77
NP		 698 { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
699 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
d46130ab 700 { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
fca4404c 701 { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
fdcb0a0f
IA		 702 { }, /* Optional parameter entry */
703 { } /* Terminating entry */
1da177e4
LT		 704};
705
464cbb24 706MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4
LT		 707
708static struct usb_driver ftdi_driver = {
709 .name = "ftdi_sio",
710 .probe = usb_serial_probe,
711 .disconnect = usb_serial_disconnect,
712 .id_table = id_table_combined,
5c09d144 713 .no_dynamic_id = 1,
1da177e4
LT		 714};
715
4c4c9432 716static const char *ftdi_chip_name[] = {
1da177e4
LT		 717 [SIO] = "SIO", /* the serial part of FT8U100AX */
718 [FT8U232AM] = "FT8U232AM",
719 [FT232BM] = "FT232BM",
720 [FT2232C] = "FT2232C",
d8b21606 721 [FT232RL] = "FT232RL",
094c2e6d
MA		 722 [FT2232H] = "FT2232H",
723 [FT4232H] = "FT4232H"
1da177e4
LT		 724};
725
726
727/* Constants for read urb and write urb */
728#define BUFSZ 512
1da177e4
LT		 729
730/* rx_flags */
731#define THROTTLED 0x01
732#define ACTUALLY_THROTTLED 0x02
733
1da177e4
LT		 734/* Used for TIOCMIWAIT */
735#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
736#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
737/* End TIOCMIWAIT */
738
bbc5d276
RK		 739#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
740 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 741
742/* function prototypes for a FTDI serial converter */
464cbb24
AC		 743static int ftdi_sio_probe(struct usb_serial *serial,
744 const struct usb_device_id *id);
464cbb24
AC		 745static int ftdi_sio_port_probe(struct usb_serial_port *port);
746static int ftdi_sio_port_remove(struct usb_serial_port *port);
747static int ftdi_open(struct tty_struct *tty,
748 struct usb_serial_port *port, struct file *filp);
335f8514
AC		 749static void ftdi_close(struct usb_serial_port *port);
750static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
464cbb24
AC		 751static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
752 const unsigned char *buf, int count);
753static int ftdi_write_room(struct tty_struct *tty);
754static int ftdi_chars_in_buffer(struct tty_struct *tty);
755static void ftdi_write_bulk_callback(struct urb *urb);
756static void ftdi_read_bulk_callback(struct urb *urb);
757static void ftdi_process_read(struct work_struct *work);
758static void ftdi_set_termios(struct tty_struct *tty,
759 struct usb_serial_port *port, struct ktermios *old);
760static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
761static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
762 unsigned int set, unsigned int clear);
763static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
764 unsigned int cmd, unsigned long arg);
765static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
766static void ftdi_throttle(struct tty_struct *tty);
767static void ftdi_unthrottle(struct tty_struct *tty);
768
769static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
770static unsigned short int ftdi_232am_baud_to_divisor(int baud);
771static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
772static __u32 ftdi_232bm_baud_to_divisor(int baud);
094c2e6d
MA		 773static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
774static __u32 ftdi_2232h_baud_to_divisor(int baud);
1da177e4 775
ea65370d 776static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 777 .driver = {
778 .owner = THIS_MODULE,
269bda1c 779 .name = "ftdi_sio",
18fcac35 780 },
269bda1c 781 .description = "FTDI USB Serial Device",
d9b1b787 782 .usb_driver = &ftdi_driver ,
8f977e42 783 .id_table = id_table_combined,
1da177e4 784 .num_ports = 1,
8f977e42 785 .probe = ftdi_sio_probe,
12bdbe03
JR		 786 .port_probe = ftdi_sio_port_probe,
787 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 788 .open = ftdi_open,
789 .close = ftdi_close,
335f8514 790 .dtr_rts = ftdi_dtr_rts,
1da177e4
LT		 791 .throttle = ftdi_throttle,
792 .unthrottle = ftdi_unthrottle,
793 .write = ftdi_write,
794 .write_room = ftdi_write_room,
795 .chars_in_buffer = ftdi_chars_in_buffer,
796 .read_bulk_callback = ftdi_read_bulk_callback,
797 .write_bulk_callback = ftdi_write_bulk_callback,
798 .tiocmget = ftdi_tiocmget,
799 .tiocmset = ftdi_tiocmset,
800 .ioctl = ftdi_ioctl,
801 .set_termios = ftdi_set_termios,
802 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 803};
804
1da177e4
LT		 805
806#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 807#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 808
809/* High and low are for DTR, RTS etc etc */
810#define HIGH 1
811#define LOW 0
812
22465400
IA		 813/* number of outstanding urbs to prevent userspace DoS from happening */
814#define URB_UPPER_LIMIT 42
815
1da177e4
LT		 816/*
817 * ***************************************************************************
fa91d43b 818 * Utility functions
1da177e4
LT		 819 * ***************************************************************************
820 */
821
822static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
823{
824 unsigned short int divisor;
464cbb24
AC		 825 /* divisor shifted 3 bits to the left */
826 int divisor3 = base / 2 / baud;
827 if ((divisor3 & 0x7) == 7)
828 divisor3++; /* round x.7/8 up to x+1 */
1da177e4
LT		 829 divisor = divisor3 >> 3;
830 divisor3 &= 0x7;
464cbb24
AC		 831 if (divisor3 == 1)
832 divisor |= 0xc000;
833 else if (divisor3 >= 4)
834 divisor |= 0x4000;
835 else if (divisor3 != 0)
836 divisor |= 0x8000;
837 else if (divisor == 1)
838 divisor = 0; /* special case for maximum baud rate */
1da177e4
LT		 839 return divisor;
840}
841
842static unsigned short int ftdi_232am_baud_to_divisor(int baud)
843{
464cbb24 844 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 845}
846
847static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
848{
849 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
850 __u32 divisor;
464cbb24
AC		 851 /* divisor shifted 3 bits to the left */
852 int divisor3 = base / 2 / baud;
1da177e4
LT		 853 divisor = divisor3 >> 3;
854 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
855 /* Deal with special cases for highest baud rates. */
464cbb24
AC		 856 if (divisor == 1)
857 divisor = 0;
858 else if (divisor == 0x4001)
859 divisor = 1;
1da177e4
LT		 860 return divisor;
861}
862
863static __u32 ftdi_232bm_baud_to_divisor(int baud)
864{
464cbb24 865 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1da177e4
LT		 866}
867
094c2e6d
MA		 868static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
869{
870 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
871 __u32 divisor;
872 int divisor3;
873
874 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */
875 divisor3 = (base / 10 / baud) * 8;
876
877 divisor = divisor3 >> 3;
878 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
879 /* Deal with special cases for highest baud rates. */
880 if (divisor == 1)
881 divisor = 0;
882 else if (divisor == 0x4001)
883 divisor = 1;
884 /*
885 * Set this bit to turn off a divide by 2.5 on baud rate generator
886 * This enables baud rates up to 12Mbaud but cannot reach below 1200
887 * baud with this bit set
888 */
889 divisor |= 0x00020000;
890 return divisor;
891}
892
893static __u32 ftdi_2232h_baud_to_divisor(int baud)
894{
895 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
896}
897
74ede0ff
IA		 898#define set_mctrl(port, set) update_mctrl((port), (set), 0)
899#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
900
464cbb24
AC		 901static int update_mctrl(struct usb_serial_port *port, unsigned int set,
902 unsigned int clear)
1da177e4
LT		 903{
904 struct ftdi_private *priv = usb_get_serial_port_data(port);
905 char *buf;
74ede0ff 906 unsigned urb_value;
1da177e4 907 int rv;
1da177e4 908
74ede0ff 909 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 910 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 911 return 0; /* no change */
912 }
1da177e4 913
1da177e4 914 buf = kmalloc(1, GFP_NOIO);
9b0f2582 915 if (!buf)
1da177e4 916 return -ENOMEM;
74ede0ff
IA		 917
918 clear &= ~set; /* 'set' takes precedence over 'clear' */
919 urb_value = 0;
920 if (clear & TIOCM_DTR)
921 urb_value |= FTDI_SIO_SET_DTR_LOW;
922 if (clear & TIOCM_RTS)
923 urb_value |= FTDI_SIO_SET_RTS_LOW;
924 if (set & TIOCM_DTR)
925 urb_value |= FTDI_SIO_SET_DTR_HIGH;
926 if (set & TIOCM_RTS)
927 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 928 rv = usb_control_msg(port->serial->dev,
929 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 930 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 931 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 932 urb_value, priv->interface,
1da177e4
LT		 933 buf, 0, WDR_TIMEOUT);
934
935 kfree(buf);
74ede0ff 936 if (rv < 0) {
43b11d33 937 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 938 __func__,
74ede0ff
IA		 939 (set & TIOCM_DTR) ? "HIGH" :
940 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
941 (set & TIOCM_RTS) ? "HIGH" :
942 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
943 } else {
441b62c1 944 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 945 (set & TIOCM_DTR) ? "HIGH" :
946 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
947 (set & TIOCM_RTS) ? "HIGH" :
948 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 949 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 950 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
951 }
1da177e4
LT		 952 return rv;
953}
954
955
464cbb24
AC		 956static __u32 get_ftdi_divisor(struct tty_struct *tty,
957 struct usb_serial_port *port)
1da177e4
LT		 958{ /* get_ftdi_divisor */
959 struct ftdi_private *priv = usb_get_serial_port_data(port);
960 __u32 div_value = 0;
961 int div_okay = 1;
962 int baud;
963
964 /*
464cbb24
AC		 965 * The logic involved in setting the baudrate can be cleanly split into
966 * 3 steps.
1da177e4 967 * 1. Standard baud rates are set in tty->termios->c_cflag
464cbb24
AC		 968 * 2. If these are not enough, you can set any speed using alt_speed as
969 * follows:
1da177e4
LT		 970 * - set tty->termios->c_cflag speed to B38400
971 * - set your real speed in tty->alt_speed; it gets ignored when
972 * alt_speed==0, (or)
464cbb24
AC		 973 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
974 * follows:
975 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
976 * this just sets alt_speed to (HI: 57600, VHI: 115200,
977 * SHI: 230400, WARP: 460800)
1da177e4
LT		 978 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
979 * 3. You can also set baud rate by setting custom divisor as follows
980 * - set tty->termios->c_cflag speed to B38400
464cbb24
AC		 981 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
982 * follows:
1da177e4
LT		 983 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
984 * o custom_divisor set to baud_base / your_new_baudrate
464cbb24
AC		 985 * ** Step 3 is done courtesy of code borrowed from serial.c
986 * I should really spend some time and separate + move this common
987 * code to serial.c, it is replicated in nearly every serial driver
988 * you see.
1da177e4
LT		 989 */
990
464cbb24
AC		 991 /* 1. Get the baud rate from the tty settings, this observes
992 alt_speed hack */
1da177e4 993
95da310e 994 baud = tty_get_baud_rate(tty);
441b62c1 995 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4 996
464cbb24
AC		 997 /* 2. Observe async-compatible custom_divisor hack, update baudrate
998 if needed */
1da177e4
LT		 999
1000 if (baud == 38400 &&
1001 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1002 (priv->custom_divisor)) {
1003 baud = priv->baud_base / priv->custom_divisor;
464cbb24
AC		 1004 dbg("%s - custom divisor %d sets baud rate to %d",
1005 __func__, priv->custom_divisor, baud);
1da177e4
LT		 1006 }
1007
1008 /* 3. Convert baudrate to device-specific divisor */
1009
464cbb24
AC		 1010 if (!baud)
1011 baud = 9600;
1012 switch (priv->chip_type) {
1da177e4 1013 case SIO: /* SIO chip */
464cbb24 1014 switch (baud) {
1da177e4
LT		 1015 case 300: div_value = ftdi_sio_b300; break;
1016 case 600: div_value = ftdi_sio_b600; break;
1017 case 1200: div_value = ftdi_sio_b1200; break;
1018 case 2400: div_value = ftdi_sio_b2400; break;
1019 case 4800: div_value = ftdi_sio_b4800; break;
1020 case 9600: div_value = ftdi_sio_b9600; break;
1021 case 19200: div_value = ftdi_sio_b19200; break;
1022 case 38400: div_value = ftdi_sio_b38400; break;
1023 case 57600: div_value = ftdi_sio_b57600; break;
1024 case 115200: div_value = ftdi_sio_b115200; break;
1025 } /* baud */
1026 if (div_value == 0) {
464cbb24
AC		 1027 dbg("%s - Baudrate (%d) requested is not supported",
1028 __func__, baud);
1da177e4 1029 div_value = ftdi_sio_b9600;
bd5e47cc 1030 baud = 9600;
1da177e4
LT		 1031 div_okay = 0;
1032 }
1033 break;
1034 case FT8U232AM: /* 8U232AM chip */
1035 if (baud <= 3000000) {
1036 div_value = ftdi_232am_baud_to_divisor(baud);
1037 } else {
464cbb24 1038 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 1039 baud = 9600;
1da177e4
LT		 1040 div_value = ftdi_232am_baud_to_divisor(9600);
1041 div_okay = 0;
1042 }
1043 break;
1044 case FT232BM: /* FT232BM chip */
1045 case FT2232C: /* FT2232C chip */
3b009c63 1046 case FT232RL:
1da177e4 1047 if (baud <= 3000000) {
b760dac2
MG		 1048 __u16 product_id = le16_to_cpu(
1049 port->serial->dev->descriptor.idProduct);
1050 if (((FTDI_NDI_HUC_PID == product_id) ||
1051 (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1052 (FTDI_NDI_FUTURE_2_PID == product_id) ||
1053 (FTDI_NDI_FUTURE_3_PID == product_id) ||
1054 (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1055 (baud == 19200)) {
1056 baud = 1200000;
1057 }
1da177e4
LT		 1058 div_value = ftdi_232bm_baud_to_divisor(baud);
1059 } else {
464cbb24 1060 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 1061 div_value = ftdi_232bm_baud_to_divisor(9600);
1062 div_okay = 0;
669a6db1 1063 baud = 9600;
1da177e4
LT		 1064 }
1065 break;
094c2e6d
MA		 1066 case FT2232H: /* FT2232H chip */
1067 case FT4232H: /* FT4232H chip */
1068 if ((baud <= 12000000) & (baud >= 1200)) {
1069 div_value = ftdi_2232h_baud_to_divisor(baud);
1070 } else if (baud < 1200) {
1071 div_value = ftdi_232bm_baud_to_divisor(baud);
1072 } else {
1073 dbg("%s - Baud rate too high!", __func__);
1074 div_value = ftdi_232bm_baud_to_divisor(9600);
1075 div_okay = 0;
1076 baud = 9600;
1077 }
1078 break;
1da177e4
LT		 1079 } /* priv->chip_type */
1080
1081 if (div_okay) {
1082 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 1083 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 1084 ftdi_chip_name[priv->chip_type]);
1085 }
1086
95da310e 1087 tty_encode_baud_rate(tty, baud, baud);
464cbb24 1088 return div_value;
1da177e4
LT		 1089}
1090
95da310e
AC		 1091static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1092{
1093 struct ftdi_private *priv = usb_get_serial_port_data(port);
1094 char *buf;
464cbb24 1095 __u16 urb_value;
95da310e
AC		 1096 __u16 urb_index;
1097 __u32 urb_index_value;
1098 int rv;
1099
1100 buf = kmalloc(1, GFP_NOIO);
1101 if (!buf)
1102 return -ENOMEM;
1103
1104 urb_index_value = get_ftdi_divisor(tty, port);
1105 urb_value = (__u16)urb_index_value;
1106 urb_index = (__u16)(urb_index_value >> 16);
1107 if (priv->interface) { /* FT2232C */
1108 urb_index = (__u16)((urb_index << 8) | priv->interface);
1109 }
1110
1111 rv = usb_control_msg(port->serial->dev,
1112 usb_sndctrlpipe(port->serial->dev, 0),
1113 FTDI_SIO_SET_BAUDRATE_REQUEST,
1114 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1115 urb_value, urb_index,
1116 buf, 0, WDR_SHORT_TIMEOUT);
1117
1118 kfree(buf);
1119 return rv;
1120}
1121
557aaa7f
AC		 1122static int write_latency_timer(struct usb_serial_port *port)
1123{
1124 struct ftdi_private *priv = usb_get_serial_port_data(port);
1125 struct usb_device *udev = port->serial->dev;
1126 char buf[1];
1127 int rv = 0;
1128 int l = priv->latency;
1129
1130 if (priv->flags & ASYNC_LOW_LATENCY)
1131 l = 1;
1132
1133 dbg("%s: setting latency timer = %i", __func__, l);
1134
1135 rv = usb_control_msg(udev,
1136 usb_sndctrlpipe(udev, 0),
1137 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1138 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1139 l, priv->interface,
1140 buf, 0, WDR_TIMEOUT);
95da310e 1141
557aaa7f
AC		 1142 if (rv < 0)
1143 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1144 return rv;
1145}
1146
1147static int read_latency_timer(struct usb_serial_port *port)
1148{
1149 struct ftdi_private *priv = usb_get_serial_port_data(port);
1150 struct usb_device *udev = port->serial->dev;
1151 unsigned short latency = 0;
1152 int rv = 0;
1153
1154
1155 dbg("%s", __func__);
1156
1157 rv = usb_control_msg(udev,
1158 usb_rcvctrlpipe(udev, 0),
1159 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1160 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1161 0, priv->interface,
1162 (char *) &latency, 1, WDR_TIMEOUT);
1163
1164 if (rv < 0) {
1165 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1166 return -EIO;
1167 }
1168 return latency;
1169}
1da177e4 1170
464cbb24
AC		 1171static int get_serial_info(struct usb_serial_port *port,
1172 struct serial_struct __user *retinfo)
1da177e4
LT		 1173{
1174 struct ftdi_private *priv = usb_get_serial_port_data(port);
1175 struct serial_struct tmp;
1176
1177 if (!retinfo)
1178 return -EFAULT;
1179 memset(&tmp, 0, sizeof(tmp));
1180 tmp.flags = priv->flags;
1181 tmp.baud_base = priv->baud_base;
1182 tmp.custom_divisor = priv->custom_divisor;
1183 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1184 return -EFAULT;
1185 return 0;
1186} /* get_serial_info */
1187
1188
95da310e 1189static int set_serial_info(struct tty_struct *tty,
464cbb24 1190 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1da177e4
LT		 1191{ /* set_serial_info */
1192 struct ftdi_private *priv = usb_get_serial_port_data(port);
1193 struct serial_struct new_serial;
1194 struct ftdi_private old_priv;
1195
1196 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1197 return -EFAULT;
6b447f04
AC		 1198
1199 lock_kernel();
464cbb24 1200 old_priv = *priv;
1da177e4
LT		 1201
1202 /* Do error checking and permission checking */
1203
1204 if (!capable(CAP_SYS_ADMIN)) {
1205 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
64905b48
DC		 1206 (priv->flags & ~ASYNC_USR_MASK))) {
1207 unlock_kernel();
1da177e4 1208 return -EPERM;
64905b48 1209 }
1da177e4
LT		 1210 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1211 (new_serial.flags & ASYNC_USR_MASK));
1212 priv->custom_divisor = new_serial.custom_divisor;
1213 goto check_and_exit;
1214 }
1215
1216 if ((new_serial.baud_base != priv->baud_base) &&
6b447f04
AC		 1217 (new_serial.baud_base < 9600)) {
1218 unlock_kernel();
1da177e4 1219 return -EINVAL;
6b447f04 1220 }
1da177e4
LT		 1221
1222 /* Make the changes - these are privileged changes! */
1223
1224 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
464cbb24 1225 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1226 priv->custom_divisor = new_serial.custom_divisor;
1227
95da310e 1228 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
557aaa7f 1229 write_latency_timer(port);
1da177e4
LT		 1230
1231check_and_exit:
1232 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1233 (priv->flags & ASYNC_SPD_MASK)) {
1234 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
95da310e 1235 tty->alt_speed = 57600;
1da177e4 1236 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
95da310e 1237 tty->alt_speed = 115200;
1da177e4 1238 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
95da310e 1239 tty->alt_speed = 230400;
1da177e4 1240 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
95da310e 1241 tty->alt_speed = 460800;
1da177e4 1242 else
95da310e 1243 tty->alt_speed = 0;
1da177e4
LT		 1244 }
1245 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1246 (priv->flags & ASYNC_SPD_MASK)) ||
1247 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1248 (old_priv.custom_divisor != priv->custom_divisor))) {
6b447f04 1249 unlock_kernel();
95da310e 1250 change_speed(tty, port);
1da177e4 1251 }
6b447f04
AC		 1252 else
1253 unlock_kernel();
95da310e 1254 return 0;
1da177e4
LT		 1255
1256} /* set_serial_info */
1257
1258
8f977e42
IA		 1259/* Determine type of FTDI chip based on USB config and descriptor. */
1260static void ftdi_determine_type(struct usb_serial_port *port)
1261{
1262 struct ftdi_private *priv = usb_get_serial_port_data(port);
1263 struct usb_serial *serial = port->serial;
1264 struct usb_device *udev = serial->dev;
1265 unsigned version;
1266 unsigned interfaces;
1267
1268 /* Assume it is not the original SIO device for now. */
f5e09b7c 1269 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1270 priv->write_offset = 0;
1271
1272 version = le16_to_cpu(udev->descriptor.bcdDevice);
1273 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1274 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1275 version, interfaces);
1276 if (interfaces > 1) {
1277 int inter;
1278
094c2e6d
MA		 1279 /* Multiple interfaces.*/
1280 if (version == 0x0800) {
1281 priv->chip_type = FT4232H;
1282 /* Hi-speed - baud clock runs at 120MHz */
1283 priv->baud_base = 120000000 / 2;
1284 } else if (version == 0x0700) {
1285 priv->chip_type = FT2232H;
1286 /* Hi-speed - baud clock runs at 120MHz */
1287 priv->baud_base = 120000000 / 2;
1288 } else
1289 priv->chip_type = FT2232C;
1290
8f977e42
IA		 1291 /* Determine interface code. */
1292 inter = serial->interface->altsetting->desc.bInterfaceNumber;
094c2e6d
MA		 1293 if (inter == 0) {
1294 priv->interface = INTERFACE_A;
1295 } else if (inter == 1) {
1296 priv->interface = INTERFACE_B;
1297 } else if (inter == 2) {
1298 priv->interface = INTERFACE_C;
1299 } else if (inter == 3) {
1300 priv->interface = INTERFACE_D;
1301 }
8f977e42
IA		 1302 /* BM-type devices have a bug where bcdDevice gets set
1303 * to 0x200 when iSerialNumber is 0. */
1304 if (version < 0x500) {
1305 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1306 __func__);
8f977e42
IA		 1307 }
1308 } else if (version < 0x200) {
1309 /* Old device. Assume its the original SIO. */
1310 priv->chip_type = SIO;
1311 priv->baud_base = 12000000 / 16;
1312 priv->write_offset = 1;
1313 } else if (version < 0x400) {
1314 /* Assume its an FT8U232AM (or FT8U245AM) */
1315 /* (It might be a BM because of the iSerialNumber bug,
1316 * but it will still work as an AM device.) */
1317 priv->chip_type = FT8U232AM;
3b009c63 1318 } else if (version < 0x600) {
8f977e42
IA		 1319 /* Assume its an FT232BM (or FT245BM) */
1320 priv->chip_type = FT232BM;
3b009c63
DB		 1321 } else {
1322 /* Assume its an FT232R */
1323 priv->chip_type = FT232RL;
8f977e42 1324 }
c197a8db 1325 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
8f977e42
IA		 1326}
1327
1328
895f28ba
MA		 1329/* Determine the maximum packet size for the device. This depends on the chip
1330 * type and the USB host capabilities. The value should be obtained from the
1331 * device descriptor as the chip will use the appropriate values for the host.*/
1332static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1333{
1334 struct ftdi_private *priv = usb_get_serial_port_data(port);
1335 struct usb_serial *serial = port->serial;
1336 struct usb_device *udev = serial->dev;
1337
1338 struct usb_interface *interface = serial->interface;
1339 struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1340
1341 unsigned num_endpoints;
1342 int i = 0;
1343
1344 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1345 dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1346
1347 /* NOTE: some customers have programmed FT232R/FT245R devices
1348 * with an endpoint size of 0 - not good. In this case, we
1349 * want to override the endpoint descriptor setting and use a
1350 * value of 64 for wMaxPacketSize */
1351 for (i = 0; i < num_endpoints; i++) {
1352 dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1353 interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1354 ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1355 if (ep_desc->wMaxPacketSize == 0) {
1356 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1357 dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1358 }
1359 }
1360
1361 /* set max packet size based on descriptor */
1362 priv->max_packet_size = ep_desc->wMaxPacketSize;
1363
1364 dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1365}
1366
1367
1da177e4
LT		 1368/*
1369 * ***************************************************************************
1370 * Sysfs Attribute
1371 * ***************************************************************************
1372 */
1373
464cbb24
AC		 1374static ssize_t show_latency_timer(struct device *dev,
1375 struct device_attribute *attr, char *buf)
1da177e4
LT		 1376{
1377 struct usb_serial_port *port = to_usb_serial_port(dev);
1378 struct ftdi_private *priv = usb_get_serial_port_data(port);
557aaa7f
AC		 1379 if (priv->flags & ASYNC_LOW_LATENCY)
1380 return sprintf(buf, "1\n");
1381 else
1382 return sprintf(buf, "%i\n", priv->latency);
1da177e4
LT		 1383}
1384
557aaa7f 1385
1da177e4 1386/* Write a new value of the latency timer, in units of milliseconds. */
464cbb24
AC		 1387static ssize_t store_latency_timer(struct device *dev,
1388 struct device_attribute *attr, const char *valbuf,
1389 size_t count)
1da177e4
LT		 1390{
1391 struct usb_serial_port *port = to_usb_serial_port(dev);
1392 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4
LT		 1393 int v = simple_strtoul(valbuf, NULL, 10);
1394 int rv = 0;
5c09d144 1395
557aaa7f
AC		 1396 priv->latency = v;
1397 rv = write_latency_timer(port);
1398 if (rv < 0)
1da177e4 1399 return -EIO;
1da177e4
LT		 1400 return count;
1401}
1402
1403/* Write an event character directly to the FTDI register. The ASCII
1404 value is in the low 8 bits, with the enable bit in the 9th bit. */
464cbb24
AC		 1405static ssize_t store_event_char(struct device *dev,
1406 struct device_attribute *attr, const char *valbuf, size_t count)
1da177e4
LT		 1407{
1408 struct usb_serial_port *port = to_usb_serial_port(dev);
1409 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1410 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1411 char buf[1];
1412 int v = simple_strtoul(valbuf, NULL, 10);
1413 int rv = 0;
5c09d144 1414
441b62c1 1415 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1416
1da177e4
LT		 1417 rv = usb_control_msg(udev,
1418 usb_sndctrlpipe(udev, 0),
1419 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1420 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1421 v, priv->interface,
1da177e4 1422 buf, 0, WDR_TIMEOUT);
5c09d144 1423
1da177e4
LT		 1424 if (rv < 0) {
1425 dbg("Unable to write event character: %i", rv);
1426 return -EIO;
1427 }
5c09d144 1428
1da177e4
LT		 1429 return count;
1430}
1431
464cbb24
AC		 1432static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1433 store_latency_timer);
1da177e4
LT		 1434static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1435
12bdbe03 1436static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1437{
12bdbe03 1438 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1439 int retval = 0;
1da177e4 1440
464cbb24 1441 dbg("%s", __func__);
13f4db9e 1442
1da177e4
LT		 1443 /* XXX I've no idea if the original SIO supports the event_char
1444 * sysfs parameter, so I'm playing it safe. */
1445 if (priv->chip_type != SIO) {
1446 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1447 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1448 if ((!retval) &&
97cd49eb
SM		 1449 (priv->chip_type == FT232BM ||
1450 priv->chip_type == FT2232C ||
094c2e6d
MA		 1451 priv->chip_type == FT232RL ||
1452 priv->chip_type == FT2232H ||
1453 priv->chip_type == FT4232H)) {
12bdbe03 1454 retval = device_create_file(&port->dev,
13f4db9e 1455 &dev_attr_latency_timer);
1da177e4
LT		 1456 }
1457 }
13f4db9e 1458 return retval;
1da177e4
LT		 1459}
1460
12bdbe03 1461static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1462{
12bdbe03 1463 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1464
464cbb24 1465 dbg("%s", __func__);
1da177e4 1466
1da177e4
LT		 1467 /* XXX see create_sysfs_attrs */
1468 if (priv->chip_type != SIO) {
12bdbe03 1469 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1470 if (priv->chip_type == FT232BM ||
1471 priv->chip_type == FT2232C ||
094c2e6d
MA		 1472 priv->chip_type == FT232RL ||
1473 priv->chip_type == FT2232H ||
1474 priv->chip_type == FT4232H) {
12bdbe03 1475 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1476 }
1477 }
5c09d144 1478
1da177e4
LT		 1479}
1480
1481/*
1482 * ***************************************************************************
1483 * FTDI driver specific functions
1484 * ***************************************************************************
1485 */
1486
8f977e42 1487/* Probe function to check for special devices */
464cbb24
AC		 1488static int ftdi_sio_probe(struct usb_serial *serial,
1489 const struct usb_device_id *id)
8f977e42 1490{
464cbb24
AC		 1491 struct ftdi_sio_quirk *quirk =
1492 (struct ftdi_sio_quirk *)id->driver_info;
fa91d43b
TL		 1493
1494 if (quirk && quirk->probe) {
1495 int ret = quirk->probe(serial);
1496 if (ret != 0)
1497 return ret;
1498 }
1499
8f977e42
IA		 1500 usb_set_serial_data(serial, (void *)id->driver_info);
1501
fa91d43b 1502 return 0;
8f977e42
IA		 1503}
1504
12bdbe03 1505static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1506{
1da177e4 1507 struct ftdi_private *priv;
0ffbbe25
ON		 1508 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1509
13f4db9e 1510
464cbb24 1511 dbg("%s", __func__);
1da177e4 1512
80b6ca48 1513 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
464cbb24 1514 if (!priv) {
194343d9 1515 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
464cbb24 1516 sizeof(struct ftdi_private));
1da177e4
LT		 1517 return -ENOMEM;
1518 }
1da177e4 1519
c45d6320 1520 kref_init(&priv->kref);
1da177e4 1521 spin_lock_init(&priv->rx_lock);
22465400 1522 spin_lock_init(&priv->tx_lock);
464cbb24 1523 init_waitqueue_head(&priv->delta_msr_wait);
1da177e4
LT		 1524 /* This will push the characters through immediately rather
1525 than queue a task to deliver them */
1526 priv->flags = ASYNC_LOW_LATENCY;
1527
0ffbbe25
ON		 1528 if (quirk && quirk->port_probe)
1529 quirk->port_probe(priv);
1530
1da177e4 1531 /* Increase the size of read buffers */
1bc3c9e1 1532 kfree(port->bulk_in_buffer);
464cbb24 1533 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1da177e4 1534 if (!port->bulk_in_buffer) {
464cbb24 1535 kfree(priv);
1da177e4
LT		 1536 return -ENOMEM;
1537 }
1538 if (port->read_urb) {
1539 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1540 port->read_urb->transfer_buffer_length = BUFSZ;
1541 }
1542
c4028958
DH		 1543 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1544 priv->port = port;
76854cea 1545
1da177e4
LT		 1546 /* Free port's existing write urb and transfer buffer. */
1547 if (port->write_urb) {
464cbb24 1548 usb_free_urb(port->write_urb);
1da177e4
LT		 1549 port->write_urb = NULL;
1550 }
1bc3c9e1
JJ		 1551 kfree(port->bulk_out_buffer);
1552 port->bulk_out_buffer = NULL;
1da177e4 1553
12bdbe03 1554 usb_set_serial_port_data(port, priv);
1da177e4 1555
464cbb24 1556 ftdi_determine_type(port);
895f28ba 1557 ftdi_set_max_packet_size(port);
557aaa7f 1558 read_latency_timer(port);
12bdbe03
JR		 1559 create_sysfs_attrs(port);
1560 return 0;
1561}
1da177e4 1562
8f977e42
IA		 1563/* Setup for the USB-UIRT device, which requires hardwired
1564 * baudrate (38400 gets mapped to 312500) */
1da177e4 1565/* Called from usbserial:serial_probe */
464cbb24 1566static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
8f977e42 1567{
464cbb24 1568 dbg("%s", __func__);
1da177e4 1569
1da177e4
LT		 1570 priv->flags |= ASYNC_SPD_CUST;
1571 priv->custom_divisor = 77;
669a6db1 1572 priv->force_baud = 38400;
8f977e42 1573} /* ftdi_USB_UIRT_setup */
1da177e4 1574
8f977e42
IA		 1575/* Setup for the HE-TIRA1 device, which requires hardwired
1576 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
464cbb24
AC		 1577
1578static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
8f977e42 1579{
464cbb24 1580 dbg("%s", __func__);
1da177e4 1581
1da177e4
LT		 1582 priv->flags |= ASYNC_SPD_CUST;
1583 priv->custom_divisor = 240;
669a6db1 1584 priv->force_baud = 38400;
1da177e4 1585 priv->force_rtscts = 1;
8f977e42 1586} /* ftdi_HE_TIRA1_setup */
1da177e4 1587
b760dac2
MG		 1588/*
1589 * Module parameter to control latency timer for NDI FTDI-based USB devices.
1590 * If this value is not set in modprobe.conf.local its value will be set to 1ms.
1591 */
1592static int ndi_latency_timer = 1;
1593
1594/* Setup for the NDI FTDI-based USB devices, which requires hardwired
1595 * baudrate (19200 gets mapped to 1200000).
1596 *
1597 * Called from usbserial:serial_probe.
1598 */
1599static int ftdi_NDI_device_setup(struct usb_serial *serial)
1600{
1601 struct usb_device *udev = serial->dev;
1602 int latency = ndi_latency_timer;
1603 int rv = 0;
1604 char buf[1];
1605
1606 if (latency == 0)
1607 latency = 1;
1608 if (latency > 99)
1609 latency = 99;
1610
1611 dbg("%s setting NDI device latency to %d", __func__, latency);
1612 dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
1613
1614 rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1615 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1616 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1617 latency, 0, buf, 0, WDR_TIMEOUT);
1618 return 0;
1619}
1620
fa91d43b 1621/*
20734345
HW		 1622 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1623 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1624 * userspace using openocd.
fa91d43b 1625 */
20734345 1626static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1627{
1628 struct usb_device *udev = serial->dev;
1629 struct usb_interface *interface = serial->interface;
1630
464cbb24 1631 dbg("%s", __func__);
fa91d43b
TL		 1632
1633 if (interface == udev->actconfig->interface[0]) {
c197a8db
GKH		 1634 dev_info(&udev->dev,
1635 "Ignoring serial port reserved for JTAG\n");
fa91d43b
TL		 1636 return -ENODEV;
1637 }
1638
1639 return 0;
1640}
1da177e4 1641
546d7eec
KV		 1642/*
1643 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1644 * We have to correct it if we want to read from it.
1645 */
1646static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1647{
1648 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1649 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1650
1651 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1652 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
c197a8db
GKH		 1653 dev_info(&serial->dev->dev,
1654 "Fixing invalid wMaxPacketSize on read pipe\n");
546d7eec
KV		 1655 }
1656
1657 return 0;
1658}
1659
c45d6320
AS		 1660static void ftdi_sio_priv_release(struct kref *k)
1661{
1662 struct ftdi_private *priv = container_of(k, struct ftdi_private, kref);
1663
1664 kfree(priv);
1665}
1666
12bdbe03
JR		 1667static int ftdi_sio_port_remove(struct usb_serial_port *port)
1668{
1da177e4
LT		 1669 struct ftdi_private *priv = usb_get_serial_port_data(port);
1670
441b62c1 1671 dbg("%s", __func__);
1da177e4 1672
12bdbe03 1673 remove_sysfs_attrs(port);
5c09d144 1674
80193195 1675 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4 1676
12bdbe03
JR		 1677 return 0;
1678}
1da177e4 1679
95da310e
AC		 1680static int ftdi_open(struct tty_struct *tty,
1681 struct usb_serial_port *port, struct file *filp)
1da177e4 1682{ /* ftdi_open */
1da177e4
LT		 1683 struct usb_device *dev = port->serial->dev;
1684 struct ftdi_private *priv = usb_get_serial_port_data(port);
1685 unsigned long flags;
5c09d144 1686
1da177e4
LT		 1687 int result = 0;
1688 char buf[1]; /* Needed for the usb_control_msg I think */
1689
441b62c1 1690 dbg("%s", __func__);
1da177e4 1691
22465400
IA		 1692 spin_lock_irqsave(&priv->tx_lock, flags);
1693 priv->tx_bytes = 0;
1694 spin_unlock_irqrestore(&priv->tx_lock, flags);
1695 spin_lock_irqsave(&priv->rx_lock, flags);
1696 priv->rx_bytes = 0;
1697 spin_unlock_irqrestore(&priv->rx_lock, flags);
1698
95da310e
AC		 1699 if (tty)
1700 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4 1701
557aaa7f
AC		 1702 write_latency_timer(port);
1703
1da177e4
LT		 1704 /* No error checking for this (will get errors later anyway) */
1705 /* See ftdi_sio.h for description of what is reset */
1706 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1707 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1708 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1709 priv->interface, buf, 0, WDR_TIMEOUT);
1710
1711 /* Termios defaults are set by usb_serial_init. We don't change
c4f01240 1712 port->tty->termios - this would lose speed settings, etc.
1da177e4
LT		 1713 This is same behaviour as serial.c/rs_open() - Kuba */
1714
1715 /* ftdi_set_termios will send usb control messages */
95da310e
AC		 1716 if (tty)
1717 ftdi_set_termios(tty, port, tty->termios);
1da177e4 1718
1da177e4
LT		 1719 /* Not throttled */
1720 spin_lock_irqsave(&priv->rx_lock, flags);
1721 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1722 spin_unlock_irqrestore(&priv->rx_lock, flags);
1723
1724 /* Start reading from the device */
76854cea 1725 priv->rx_processed = 0;
1da177e4 1726 usb_fill_bulk_urb(port->read_urb, dev,
464cbb24
AC		 1727 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1728 port->read_urb->transfer_buffer,
1729 port->read_urb->transfer_buffer_length,
1730 ftdi_read_bulk_callback, port);
1da177e4
LT		 1731 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1732 if (result)
194343d9
GKH		 1733 dev_err(&port->dev,
1734 "%s - failed submitting read urb, error %d\n",
1735 __func__, result);
c45d6320
AS		 1736 else
1737 kref_get(&priv->kref);
1da177e4
LT		 1738
1739 return result;
1740} /* ftdi_open */
1741
1742
335f8514
AC		 1743static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1744{
1745 struct ftdi_private *priv = usb_get_serial_port_data(port);
1746 char buf[1];
1747
1748 mutex_lock(&port->serial->disc_mutex);
1749 if (!port->serial->disconnected) {
1750 /* Disable flow control */
1751 if (!on && usb_control_msg(port->serial->dev,
1752 usb_sndctrlpipe(port->serial->dev, 0),
1753 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1754 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1755 0, priv->interface, buf, 0,
1756 WDR_TIMEOUT) < 0) {
1757 dev_err(&port->dev, "error from flowcontrol urb\n");
1758 }
1759 /* drop RTS and DTR */
1760 if (on)
1761 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1762 else
1763 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1764 }
1765 mutex_unlock(&port->serial->disc_mutex);
1766}
1da177e4 1767
5c09d144 1768/*
1da177e4
LT		 1769 * usbserial:__serial_close only calls ftdi_close if the point is open
1770 *
1771 * This only gets called when it is the last close
5c09d144
DB		 1772 *
1773 *
1da177e4
LT		 1774 */
1775
335f8514 1776static void ftdi_close(struct usb_serial_port *port)
1da177e4 1777{ /* ftdi_close */
1da177e4 1778 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1779
441b62c1 1780 dbg("%s", __func__);
1da177e4 1781
76854cea
IA		 1782
1783 /* cancel any scheduled reading */
c45d6320 1784 cancel_delayed_work_sync(&priv->rx_work);
5c09d144 1785
1da177e4 1786 /* shutdown our bulk read */
794c944e 1787 usb_kill_urb(port->read_urb);
c45d6320 1788 kref_put(&priv->kref, ftdi_sio_priv_release);
1da177e4
LT		 1789} /* ftdi_close */
1790
1791
5c09d144 1792
1da177e4
LT		 1793/* The SIO requires the first byte to have:
1794 * B0 1
1795 * B1 0
1796 * B2..7 length of message excluding byte 0
1797 *
1798 * The new devices do not require this byte
1799 */
95da310e 1800static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1da177e4
LT		 1801 const unsigned char *buf, int count)
1802{ /* ftdi_write */
1803 struct ftdi_private *priv = usb_get_serial_port_data(port);
1804 struct urb *urb;
1805 unsigned char *buffer;
1806 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1807 int status;
1808 int transfer_size;
22465400 1809 unsigned long flags;
1da177e4 1810
441b62c1 1811 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1812
1813 if (count == 0) {
1814 dbg("write request of 0 bytes");
1815 return 0;
1816 }
22465400
IA		 1817 spin_lock_irqsave(&priv->tx_lock, flags);
1818 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1819 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1820 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1821 return 0;
1822 }
62127a58 1823 priv->tx_outstanding_urbs++;
22465400 1824 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1825
1da177e4 1826 data_offset = priv->write_offset;
464cbb24 1827 dbg("data_offset set to %d", data_offset);
1da177e4
LT		 1828
1829 /* Determine total transfer size */
1830 transfer_size = count;
1831 if (data_offset > 0) {
1832 /* Original sio needs control bytes too... */
1833 transfer_size += (data_offset *
895f28ba
MA		 1834 ((count + (priv->max_packet_size - 1 - data_offset)) /
1835 (priv->max_packet_size - data_offset)));
1da177e4
LT		 1836 }
1837
464cbb24 1838 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1da177e4 1839 if (!buffer) {
194343d9
GKH		 1840 dev_err(&port->dev,
1841 "%s ran out of kernel memory for urb ...\n", __func__);
62127a58
ON		 1842 count = -ENOMEM;
1843 goto error_no_buffer;
1da177e4
LT		 1844 }
1845
1846 urb = usb_alloc_urb(0, GFP_ATOMIC);
1847 if (!urb) {
194343d9 1848 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
62127a58
ON		 1849 count = -ENOMEM;
1850 goto error_no_urb;
1da177e4
LT		 1851 }
1852
1853 /* Copy data */
1854 if (data_offset > 0) {
464cbb24
AC		 1855 /* Original sio requires control byte at start of
1856 each packet. */
895f28ba 1857 int user_pktsz = priv->max_packet_size - data_offset;
1da177e4
LT		 1858 int todo = count;
1859 unsigned char *first_byte = buffer;
1860 const unsigned char *current_position = buf;
1861
1862 while (todo > 0) {
464cbb24 1863 if (user_pktsz > todo)
1da177e4 1864 user_pktsz = todo;
1da177e4 1865 /* Write the control byte at the front of the packet*/
5c09d144 1866 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4 1867 /* Copy data for packet */
464cbb24 1868 memcpy(first_byte + data_offset,
1da177e4
LT		 1869 current_position, user_pktsz);
1870 first_byte += user_pktsz + data_offset;
1871 current_position += user_pktsz;
1872 todo -= user_pktsz;
1873 }
1874 } else {
1875 /* No control byte required. */
1876 /* Copy in the data to send */
464cbb24 1877 memcpy(buffer, buf, count);
1da177e4
LT		 1878 }
1879
464cbb24
AC		 1880 usb_serial_debug_data(debug, &port->dev, __func__,
1881 transfer_size, buffer);
1da177e4
LT		 1882
1883 /* fill the buffer and send it */
5c09d144 1884 usb_fill_bulk_urb(urb, port->serial->dev,
464cbb24
AC		 1885 usb_sndbulkpipe(port->serial->dev,
1886 port->bulk_out_endpointAddress),
1887 buffer, transfer_size,
1888 ftdi_write_bulk_callback, port);
1da177e4
LT		 1889
1890 status = usb_submit_urb(urb, GFP_ATOMIC);
1891 if (status) {
194343d9
GKH		 1892 dev_err(&port->dev,
1893 "%s - failed submitting write urb, error %d\n",
1894 __func__, status);
1da177e4 1895 count = status;
62127a58 1896 goto error;
22465400
IA		 1897 } else {
1898 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1899 priv->tx_outstanding_bytes += count;
1900 priv->tx_bytes += count;
1901 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1902 }
1903
1904 /* we are done with this urb, so let the host driver
1905 * really free it when it is finished with it */
62127a58 1906 usb_free_urb(urb);
1da177e4 1907
441b62c1 1908 dbg("%s write returning: %d", __func__, count);
1da177e4 1909 return count;
62127a58
ON		 1910error:
1911 usb_free_urb(urb);
1912error_no_urb:
464cbb24 1913 kfree(buffer);
62127a58
ON		 1914error_no_buffer:
1915 spin_lock_irqsave(&priv->tx_lock, flags);
1916 priv->tx_outstanding_urbs--;
1917 spin_unlock_irqrestore(&priv->tx_lock, flags);
1918 return count;
1da177e4
LT		 1919} /* ftdi_write */
1920
1921
1922/* This function may get called when the device is closed */
1923
464cbb24 1924static void ftdi_write_bulk_callback(struct urb *urb)
1da177e4 1925{
22465400 1926 unsigned long flags;
cdc97792 1927 struct usb_serial_port *port = urb->context;
22465400
IA		 1928 struct ftdi_private *priv;
1929 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1930 unsigned long countback;
0fb0aa18 1931 int status = urb->status;
1da177e4
LT		 1932
1933 /* free up the transfer buffer, as usb_free_urb() does not do this */
464cbb24 1934 kfree(urb->transfer_buffer);
1da177e4 1935
441b62c1 1936 dbg("%s - port %d", __func__, port->number);
5c09d144 1937
22465400
IA		 1938 priv = usb_get_serial_port_data(port);
1939 if (!priv) {
441b62c1 1940 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1941 return;
1942 }
1943 /* account for transferred data */
1944 countback = urb->actual_length;
1945 data_offset = priv->write_offset;
1946 if (data_offset > 0) {
1947 /* Subtract the control bytes */
895f28ba 1948 countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
22465400
IA		 1949 }
1950 spin_lock_irqsave(&priv->tx_lock, flags);
1951 --priv->tx_outstanding_urbs;
1952 priv->tx_outstanding_bytes -= countback;
1953 spin_unlock_irqrestore(&priv->tx_lock, flags);
1954
87c1edd2
JW		 1955 if (status) {
1956 dbg("nonzero write bulk status received: %d", status);
1957 return;
1958 }
1959
cf2c7481 1960 usb_serial_port_softint(port);
1da177e4
LT		 1961} /* ftdi_write_bulk_callback */
1962
1963
95da310e 1964static int ftdi_write_room(struct tty_struct *tty)
1da177e4 1965{
95da310e 1966 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1967 struct ftdi_private *priv = usb_get_serial_port_data(port);
1968 int room;
1969 unsigned long flags;
1970
441b62c1 1971 dbg("%s - port %d", __func__, port->number);
1da177e4 1972
22465400
IA		 1973 spin_lock_irqsave(&priv->tx_lock, flags);
1974 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1975 /*
1976 * We really can take anything the user throws at us
1977 * but let's pick a nice big number to tell the tty
1978 * layer that we have lots of free space
1979 */
1980 room = 2048;
1981 } else {
1982 room = 0;
1983 }
1984 spin_unlock_irqrestore(&priv->tx_lock, flags);
1985 return room;
95da310e 1986}
1da177e4 1987
95da310e
AC		 1988static int ftdi_chars_in_buffer(struct tty_struct *tty)
1989{
1990 struct usb_serial_port *port = tty->driver_data;
22465400
IA		 1991 struct ftdi_private *priv = usb_get_serial_port_data(port);
1992 int buffered;
1993 unsigned long flags;
1994
441b62c1 1995 dbg("%s - port %d", __func__, port->number);
1da177e4 1996
22465400
IA		 1997 spin_lock_irqsave(&priv->tx_lock, flags);
1998 buffered = (int)priv->tx_outstanding_bytes;
1999 spin_unlock_irqrestore(&priv->tx_lock, flags);
2000 if (buffered < 0) {
194343d9
GKH		 2001 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
2002 __func__);
22465400
IA		 2003 buffered = 0;
2004 }
2005 return buffered;
95da310e 2006}
1da177e4 2007
95da310e
AC		 2008static void ftdi_read_bulk_callback(struct urb *urb)
2009{
cdc97792 2010 struct usb_serial_port *port = urb->context;
1da177e4
LT		 2011 struct tty_struct *tty;
2012 struct ftdi_private *priv;
22465400
IA		 2013 unsigned long countread;
2014 unsigned long flags;
0fb0aa18 2015 int status = urb->status;
1da177e4
LT		 2016
2017 if (urb->number_of_packets > 0) {
194343d9
GKH		 2018 dev_err(&port->dev, "%s transfer_buffer_length %d "
2019 "actual_length %d number of packets %d\n", __func__,
2020 urb->transfer_buffer_length,
2021 urb->actual_length, urb->number_of_packets);
2022 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
2023 urb->transfer_flags);
1da177e4
LT		 2024 }
2025
441b62c1 2026 dbg("%s - port %d", __func__, port->number);
1da177e4 2027
95da310e 2028 if (port->port.count <= 0)
1da177e4
LT		 2029 return;
2030
4a90f09b 2031 tty = tty_port_tty_get(&port->port);
1da177e4 2032 if (!tty) {
464cbb24 2033 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 2034 return;
2035 }
2036
2037 priv = usb_get_serial_port_data(port);
2038 if (!priv) {
441b62c1 2039 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 2040 goto out;
1da177e4
LT		 2041 }
2042
464cbb24 2043 if (urb != port->read_urb)
194343d9 2044 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1da177e4 2045
0fb0aa18 2046 if (status) {
464cbb24
AC		 2047 /* This will happen at close every time so it is a dbg not an
2048 err */
2049 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
4a90f09b 2050 goto out;
1da177e4
LT		 2051 }
2052
22465400
IA		 2053 /* count data bytes, but not status bytes */
2054 countread = urb->actual_length;
895f28ba 2055 countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size);
22465400
IA		 2056 spin_lock_irqsave(&priv->rx_lock, flags);
2057 priv->rx_bytes += countread;
2058 spin_unlock_irqrestore(&priv->rx_lock, flags);
2059
c4028958 2060 ftdi_process_read(&priv->rx_work.work);
4a90f09b
AC		 2061out:
2062 tty_kref_put(tty);
1da177e4
LT		 2063} /* ftdi_read_bulk_callback */
2064
2065
464cbb24 2066static void ftdi_process_read(struct work_struct *work)
1da177e4 2067{ /* ftdi_process_read */
c4028958
DH		 2068 struct ftdi_private *priv =
2069 container_of(work, struct ftdi_private, rx_work.work);
2070 struct usb_serial_port *port = priv->port;
1da177e4
LT		 2071 struct urb *urb;
2072 struct tty_struct *tty;
1da177e4 2073 char error_flag;
5c09d144 2074 unsigned char *data;
1da177e4
LT		 2075
2076 int i;
2077 int result;
2078 int need_flip;
2079 int packet_offset;
76854cea 2080 unsigned long flags;
1da177e4 2081
441b62c1 2082 dbg("%s - port %d", __func__, port->number);
1da177e4 2083
95da310e 2084 if (port->port.count <= 0)
1da177e4
LT		 2085 return;
2086
4a90f09b 2087 tty = tty_port_tty_get(&port->port);
1da177e4 2088 if (!tty) {
464cbb24 2089 dbg("%s - bad tty pointer - exiting", __func__);
1da177e4
LT		 2090 return;
2091 }
2092
2093 priv = usb_get_serial_port_data(port);
2094 if (!priv) {
441b62c1 2095 dbg("%s - bad port private data pointer - exiting", __func__);
4a90f09b 2096 goto out;
1da177e4
LT		 2097 }
2098
2099 urb = port->read_urb;
2100 if (!urb) {
441b62c1 2101 dbg("%s - bad read_urb pointer - exiting", __func__);
4a90f09b 2102 goto out;
1da177e4
LT		 2103 }
2104
2105 data = urb->transfer_buffer;
2106
76854cea 2107 if (priv->rx_processed) {
441b62c1 2108 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 2109 priv->rx_processed,
2110 urb->actual_length - priv->rx_processed);
1da177e4 2111 } else {
76854cea 2112 /* The first two bytes of every read packet are status */
464cbb24
AC		 2113 if (urb->actual_length > 2)
2114 usb_serial_debug_data(debug, &port->dev, __func__,
2115 urb->actual_length, data);
2116 else
2117 dbg("Status only: %03oo %03oo", data[0], data[1]);
76854cea 2118 }
1da177e4
LT		 2119
2120
2121 /* TO DO -- check for hung up line and handle appropriately: */
2122 /* send hangup */
2123 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
2124 /* if CD is dropped and the line is not CLOCAL then we should hangup */
2125
2126 need_flip = 0;
464cbb24 2127 for (packet_offset = priv->rx_processed;
895f28ba 2128 packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) {
76854cea
IA		 2129 int length;
2130
464cbb24
AC		 2131 /* Compare new line status to the old one, signal if different/
2132 N.B. packet may be processed more than once, but differences
2133 are only processed once. */
00185a60
JL		 2134 char new_status = data[packet_offset + 0] &
2135 FTDI_STATUS_B0_MASK;
2136 if (new_status != priv->prev_status) {
2137 priv->diff_status |=
2138 new_status ^ priv->prev_status;
2139 wake_up_interruptible(&priv->delta_msr_wait);
2140 priv->prev_status = new_status;
1da177e4
LT		 2141 }
2142
895f28ba 2143 length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2;
76854cea 2144 if (length < 0) {
194343d9
GKH		 2145 dev_err(&port->dev, "%s - bad packet length: %d\n",
2146 __func__, length+2);
76854cea
IA		 2147 length = 0;
2148 }
2149
76854cea 2150 if (priv->rx_flags & THROTTLED) {
441b62c1 2151 dbg("%s - throttled", __func__);
76854cea
IA		 2152 break;
2153 }
33f0f88f 2154 if (tty_buffer_request_room(tty, length) < length) {
464cbb24
AC		 2155 /* break out & wait for throttling/unthrottling to
2156 happen */
441b62c1 2157 dbg("%s - receive room low", __func__);
76854cea
IA		 2158 break;
2159 }
2160
1da177e4
LT		 2161 /* Handle errors and break */
2162 error_flag = TTY_NORMAL;
464cbb24
AC		 2163 /* Although the device uses a bitmask and hence can have
2164 multiple errors on a packet - the order here sets the
2165 priority the error is returned to the tty layer */
1da177e4 2166
464cbb24 2167 if (data[packet_offset+1] & FTDI_RS_OE) {
1da177e4
LT		 2168 error_flag = TTY_OVERRUN;
2169 dbg("OVERRRUN error");
2170 }
464cbb24 2171 if (data[packet_offset+1] & FTDI_RS_BI) {
1da177e4
LT		 2172 error_flag = TTY_BREAK;
2173 dbg("BREAK received");
72fda3ca 2174 usb_serial_handle_break(port);
1da177e4 2175 }
464cbb24 2176 if (data[packet_offset+1] & FTDI_RS_PE) {
1da177e4
LT		 2177 error_flag = TTY_PARITY;
2178 dbg("PARITY error");
2179 }
464cbb24 2180 if (data[packet_offset+1] & FTDI_RS_FE) {
1da177e4
LT		 2181 error_flag = TTY_FRAME;
2182 dbg("FRAMING error");
2183 }
76854cea
IA		 2184 if (length > 0) {
2185 for (i = 2; i < length+2; i++) {
5c09d144 2186 /* Note that the error flag is duplicated for
1da177e4
LT		 2187 every character received since we don't know
2188 which character it applied to */
24a15a62 2189 if (!usb_serial_handle_sysrq_char(tty, port,
72fda3ca
JW		 2190 data[packet_offset + i]))
2191 tty_insert_flip_char(tty,
2192 data[packet_offset + i],
2193 error_flag);
1da177e4
LT		 2194 }
2195 need_flip = 1;
2196 }
2197
2198#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
2199 /* if a parity error is detected you get status packets forever
2200 until a character is sent without a parity error.
464cbb24
AC		 2201 This doesn't work well since the application receives a
2202 never ending stream of bad data - even though new data
2203 hasn't been sent. Therefore I (bill) have taken this out.
5c09d144 2204 However - this might make sense for framing errors and so on
1da177e4
LT		 2205 so I am leaving the code in for now.
2206 */
2207 else {
464cbb24 2208 if (error_flag != TTY_NORMAL) {
1da177e4 2209 dbg("error_flag is not normal");
464cbb24
AC		 2210 /* In this case it is just status - if that is
2211 an error send a bad character */
2212 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1da177e4 2213 tty_flip_buffer_push(tty);
1da177e4
LT		 2214 tty_insert_flip_char(tty, 0xff, error_flag);
2215 need_flip = 1;
2216 }
2217 }
2218#endif
2219 } /* "for(packet_offset=0..." */
2220
2221 /* Low latency */
464cbb24 2222 if (need_flip)
1da177e4 2223 tty_flip_buffer_push(tty);
1da177e4 2224
76854cea
IA		 2225 if (packet_offset < urb->actual_length) {
2226 /* not completely processed - record progress */
2227 priv->rx_processed = packet_offset;
2228 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 2229 __func__, packet_offset,
76854cea
IA		 2230 urb->actual_length - packet_offset);
2231 /* check if we were throttled while processing */
2232 spin_lock_irqsave(&priv->rx_lock, flags);
2233 if (priv->rx_flags & THROTTLED) {
2234 priv->rx_flags |= ACTUALLY_THROTTLED;
2235 spin_unlock_irqrestore(&priv->rx_lock, flags);
2236 dbg("%s - deferring remainder until unthrottled",
441b62c1 2237 __func__);
a9fec710 2238 goto out;
76854cea
IA		 2239 }
2240 spin_unlock_irqrestore(&priv->rx_lock, flags);
2241 /* if the port is closed stop trying to read */
464cbb24 2242 if (port->port.count > 0)
76854cea
IA		 2243 /* delay processing of remainder */
2244 schedule_delayed_work(&priv->rx_work, 1);
464cbb24 2245 else
441b62c1 2246 dbg("%s - port is closed", __func__);
4a90f09b 2247 goto out;
76854cea
IA		 2248 }
2249
2250 /* urb is completely processed */
2251 priv->rx_processed = 0;
2252
1da177e4 2253 /* if the port is closed stop trying to read */
464cbb24 2254 if (port->port.count > 0) {
1da177e4 2255 /* Continue trying to always read */
5c09d144 2256 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
464cbb24
AC		 2257 usb_rcvbulkpipe(port->serial->dev,
2258 port->bulk_in_endpointAddress),
2259 port->read_urb->transfer_buffer,
2260 port->read_urb->transfer_buffer_length,
2261 ftdi_read_bulk_callback, port);
1da177e4
LT		 2262
2263 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2264 if (result)
194343d9
GKH		 2265 dev_err(&port->dev,
2266 "%s - failed resubmitting read urb, error %d\n",
2267 __func__, result);
1da177e4 2268 }
4a90f09b
AC		 2269out:
2270 tty_kref_put(tty);
1da177e4
LT		 2271} /* ftdi_process_read */
2272
2273
95da310e 2274static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 2275{
95da310e 2276 struct usb_serial_port *port = tty->driver_data;
1da177e4 2277 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 2278 __u16 urb_value = 0;
1da177e4 2279 char buf[1];
5c09d144 2280
1da177e4
LT		 2281 /* break_state = -1 to turn on break, and 0 to turn off break */
2282 /* see drivers/char/tty_io.c to see it used */
2283 /* last_set_data_urb_value NEVER has the break bit set in it */
2284
464cbb24 2285 if (break_state)
1da177e4 2286 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
464cbb24 2287 else
5c09d144 2288 urb_value = priv->last_set_data_urb_value;
5c09d144 2289
464cbb24
AC		 2290 if (usb_control_msg(port->serial->dev,
2291 usb_sndctrlpipe(port->serial->dev, 0),
2292 FTDI_SIO_SET_DATA_REQUEST,
2293 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2294 urb_value , priv->interface,
2295 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2296 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2297 "(state was %d)\n", __func__, break_state);
5c09d144 2298 }
1da177e4 2299
464cbb24
AC		 2300 dbg("%s break state is %d - urb is %d", __func__,
2301 break_state, urb_value);
5c09d144 2302
1da177e4
LT		 2303}
2304
2305
2306/* old_termios contains the original termios settings and tty->termios contains
2307 * the new setting to be used
2308 * WARNING: set_termios calls this with old_termios in kernel space
2309 */
2310
95da310e
AC		 2311static void ftdi_set_termios(struct tty_struct *tty,
2312 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2313{ /* ftdi_termios */
2314 struct usb_device *dev = port->serial->dev;
1da177e4 2315 struct ftdi_private *priv = usb_get_serial_port_data(port);
95da310e 2316 struct ktermios *termios = tty->termios;
669a6db1 2317 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2318 __u16 urb_value; /* will hold the new flags */
2319 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2320
464cbb24 2321 /* Added for xon/xoff support */
669a6db1 2322 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2323 unsigned char vstop;
2324 unsigned char vstart;
5c09d144 2325
441b62c1 2326 dbg("%s", __func__);
1da177e4 2327
464cbb24
AC		 2328 /* Force baud rate if this device requires it, unless it is set to
2329 B0. */
669a6db1 2330 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2331 dbg("%s: forcing baud rate for this device", __func__);
95da310e 2332 tty_encode_baud_rate(tty, priv->force_baud,
bd5e47cc 2333 priv->force_baud);
1da177e4
LT		 2334 }
2335
2336 /* Force RTS-CTS if this device requires it. */
2337 if (priv->force_rtscts) {
441b62c1 2338 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2339 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2340 }
2341
669a6db1 2342 cflag = termios->c_cflag;
1da177e4 2343
5c09d144
DB		 2344 /* FIXME -For this cut I don't care if the line is really changing or
2345 not - so just do the change regardless - should be able to
1da177e4 2346 compare old_termios and tty->termios */
5c09d144 2347 /* NOTE These routines can get interrupted by
464cbb24
AC		 2348 ftdi_sio_read_bulk_callback - need to examine what this means -
2349 don't see any problems yet */
5c09d144 2350
1da177e4 2351 /* Set number of data bits, parity, stop bits */
5c09d144 2352
669a6db1
AC		 2353 termios->c_cflag &= ~CMSPAR;
2354
1da177e4
LT		 2355 urb_value = 0;
2356 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2357 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2358 urb_value |= (cflag & PARENB ?
2359 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2360 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2361 FTDI_SIO_SET_DATA_PARITY_NONE);
2362 if (cflag & CSIZE) {
2363 switch (cflag & CSIZE) {
2364 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2365 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2366 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2367 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2368 default:
194343d9 2369 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
1da177e4
LT		 2370 }
2371 }
2372
464cbb24
AC		 2373 /* This is needed by the break command since it uses the same command
2374 - but is or'ed with this value */
1da177e4 2375 priv->last_set_data_urb_value = urb_value;
5c09d144 2376
1da177e4 2377 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2378 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2379 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2380 urb_value , priv->interface,
279e1545 2381 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
194343d9
GKH		 2382 dev_err(&port->dev, "%s FAILED to set "
2383 "databits/stopbits/parity\n", __func__);
5c09d144 2384 }
1da177e4
LT		 2385
2386 /* Now do the baudrate */
464cbb24 2387 if ((cflag & CBAUD) == B0) {
1da177e4
LT		 2388 /* Disable flow control */
2389 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2390 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2391 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2392 0, priv->interface,
1da177e4 2393 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2394 dev_err(&port->dev,
2395 "%s error from disable flowcontrol urb\n",
2396 __func__);
5c09d144 2397 }
1da177e4 2398 /* Drop RTS and DTR */
74ede0ff 2399 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2400 } else {
2401 /* set the baudrate determined before */
464cbb24 2402 if (change_speed(tty, port))
194343d9
GKH		 2403 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2404 __func__);
72a755fc 2405 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
464cbb24 2406 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
72a755fc 2407 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2408 }
2409
2410 /* Set flow control */
2411 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2412 if (cflag & CRTSCTS) {
441b62c1 2413 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2414 if (usb_control_msg(dev,
1da177e4 2415 usb_sndctrlpipe(dev, 0),
5c09d144 2416 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2417 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2418 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2419 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2420 dev_err(&port->dev,
2421 "urb failed to set to rts/cts flow control\n");
5c09d144
DB		 2422 }
2423
2424 } else {
1da177e4
LT		 2425 /*
2426 * Xon/Xoff code
2427 *
464cbb24
AC		 2428 * Check the IXOFF status in the iflag component of the
2429 * termios structure. If IXOFF is not set, the pre-xon/xoff
2430 * code is executed.
2431 */
1da177e4 2432 if (iflag & IXOFF) {
464cbb24
AC		 2433 dbg("%s request to enable xonxoff iflag=%04x",
2434 __func__, iflag);
2435 /* Try to enable the XON/XOFF on the ftdi_sio
2436 * Set the vstart and vstop -- could have been done up
2437 * above where a lot of other dereferencing is done but
2438 * that would be very inefficient as vstart and vstop
2439 * are not always needed.
2440 */
669a6db1
AC		 2441 vstart = termios->c_cc[VSTART];
2442 vstop = termios->c_cc[VSTOP];
464cbb24 2443 urb_value = (vstop << 8) | (vstart);
1da177e4
LT		 2444
2445 if (usb_control_msg(dev,
2446 usb_sndctrlpipe(dev, 0),
2447 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2448 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2449 urb_value , (FTDI_SIO_XON_XOFF_HS
2450 | priv->interface),
2451 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2452 dev_err(&port->dev, "urb failed to set to "
2453 "xon/xoff flow control\n");
1da177e4
LT		 2454 }
2455 } else {
464cbb24
AC		 2456 /* else clause to only run if cflag ! CRTSCTS and iflag
2457 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2458 * stack - not by device */
441b62c1 2459 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2460 if (usb_control_msg(dev,
1da177e4 2461 usb_sndctrlpipe(dev, 0),
5c09d144 2462 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2463 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2464 0, priv->interface,
1da177e4 2465 buf, 0, WDR_TIMEOUT) < 0) {
194343d9
GKH		 2466 dev_err(&port->dev,
2467 "urb failed to clear flow control\n");
5c09d144 2468 }
1da177e4 2469 }
5c09d144 2470
1da177e4
LT		 2471 }
2472 return;
95da310e 2473}
1da177e4 2474
95da310e 2475static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
1da177e4 2476{
95da310e 2477 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2478 struct ftdi_private *priv = usb_get_serial_port_data(port);
2479 unsigned char buf[2];
2480 int ret;
2481
441b62c1 2482 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2483 switch (priv->chip_type) {
2484 case SIO:
2485 /* Request the status from the device */
464cbb24
AC		 2486 ret = usb_control_msg(port->serial->dev,
2487 usb_rcvctrlpipe(port->serial->dev, 0),
2488 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2489 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2490 0, 0,
2491 buf, 1, WDR_TIMEOUT);
5d1ca6cf 2492 if (ret < 0)
464cbb24 2493 return ret;
1da177e4
LT		 2494 break;
2495 case FT8U232AM:
2496 case FT232BM:
2497 case FT2232C:
ed6e5282 2498 case FT232RL:
094c2e6d
MA		 2499 case FT2232H:
2500 case FT4232H:
464cbb24
AC		 2501 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2502 value) - in the same format as the data returned from the in
2503 point */
2504 ret = usb_control_msg(port->serial->dev,
2505 usb_rcvctrlpipe(port->serial->dev, 0),
2506 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2507 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2508 0, priv->interface,
2509 buf, 2, WDR_TIMEOUT);
5d1ca6cf 2510 if (ret < 0)
464cbb24 2511 return ret;
1da177e4
LT		 2512 break;
2513 default:
2514 return -EFAULT;
1da177e4 2515 }
5c09d144 2516
1da177e4
LT		 2517 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2518 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2519 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2520 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2521 priv->last_dtr_rts;
1da177e4
LT		 2522}
2523
464cbb24 2524static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
95da310e 2525 unsigned int set, unsigned int clear)
1da177e4 2526{
95da310e 2527 struct usb_serial_port *port = tty->driver_data;
441b62c1 2528 dbg("%s TIOCMSET", __func__);
74ede0ff 2529 return update_mctrl(port, set, clear);
1da177e4
LT		 2530}
2531
2532
464cbb24
AC		 2533static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2534 unsigned int cmd, unsigned long arg)
1da177e4 2535{
95da310e 2536 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2537 struct ftdi_private *priv = usb_get_serial_port_data(port);
2538
441b62c1 2539 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2540
2541 /* Based on code from acm.c and others */
2542 switch (cmd) {
2543
1da177e4 2544 case TIOCGSERIAL: /* gets serial port data */
464cbb24
AC		 2545 return get_serial_info(port,
2546 (struct serial_struct __user *) arg);
1da177e4
LT		 2547
2548 case TIOCSSERIAL: /* sets serial port data */
464cbb24
AC		 2549 return set_serial_info(tty, port,
2550 (struct serial_struct __user *) arg);
1da177e4
LT		 2551
2552 /*
2553 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2554 * - mask passed in arg for lines of interest
2555 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2556 * Caller should use TIOCGICOUNT to see which one it was.
2557 *
2558 * This code is borrowed from linux/drivers/char/serial.c
2559 */
2560 case TIOCMIWAIT:
2561 while (priv != NULL) {
2562 interruptible_sleep_on(&priv->delta_msr_wait);
2563 /* see if a signal did it */
2564 if (signal_pending(current))
2565 return -ERESTARTSYS;
2566 else {
2567 char diff = priv->diff_status;
2568
464cbb24 2569 if (diff == 0)
1da177e4 2570 return -EIO; /* no change => error */
1da177e4
LT		 2571
2572 /* Consume all events */
2573 priv->diff_status = 0;
2574
464cbb24
AC		 2575 /* Return 0 if caller wanted to know about
2576 these bits */
2577 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2578 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2579 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2580 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
1da177e4
LT		 2581 return 0;
2582 }
2583 /*
464cbb24
AC		 2584 * Otherwise caller can't care less about what
2585 * happened,and so we continue to wait for more
2586 * events.
1da177e4
LT		 2587 */
2588 }
2589 }
95da310e 2590 return 0;
1da177e4
LT		 2591 default:
2592 break;
1da177e4 2593 }
464cbb24
AC		 2594 /* This is not necessarily an error - turns out the higher layers
2595 * will do some ioctls themselves (see comment above)
1da177e4 2596 */
441b62c1 2597 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
95da310e
AC		 2598 return -ENOIOCTLCMD;
2599}
1da177e4 2600
95da310e 2601static void ftdi_throttle(struct tty_struct *tty)
1da177e4 2602{
95da310e 2603 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2604 struct ftdi_private *priv = usb_get_serial_port_data(port);
2605 unsigned long flags;
2606
441b62c1 2607 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2608
2609 spin_lock_irqsave(&priv->rx_lock, flags);
2610 priv->rx_flags |= THROTTLED;
2611 spin_unlock_irqrestore(&priv->rx_lock, flags);
2612}
2613
2614
95da310e 2615static void ftdi_unthrottle(struct tty_struct *tty)
1da177e4 2616{
95da310e 2617 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2618 struct ftdi_private *priv = usb_get_serial_port_data(port);
2619 int actually_throttled;
2620 unsigned long flags;
2621
441b62c1 2622 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2623
2624 spin_lock_irqsave(&priv->rx_lock, flags);
2625 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2626 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2627 spin_unlock_irqrestore(&priv->rx_lock, flags);
2628
2629 if (actually_throttled)
c4028958 2630 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2631}
2632
464cbb24 2633static int __init ftdi_init(void)
1da177e4
LT		 2634{
2635 int retval;
2636
441b62c1 2637 dbg("%s", __func__);
fdcb0a0f
IA		 2638 if (vendor > 0 && product > 0) {
2639 /* Add user specified VID/PID to reserved element of table. */
2640 int i;
2641 for (i = 0; id_table_combined[i].idVendor; i++)
2642 ;
2643 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2644 id_table_combined[i].idVendor = vendor;
2645 id_table_combined[i].idProduct = product;
2646 }
8f977e42 2647 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2648 if (retval)
8f977e42 2649 goto failed_sio_register;
1da177e4 2650 retval = usb_register(&ftdi_driver);
5c09d144 2651 if (retval)
1da177e4
LT		 2652 goto failed_usb_register;
2653
c197a8db
GKH		 2654 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2655 DRIVER_DESC "\n");
1da177e4
LT		 2656 return 0;
2657failed_usb_register:
8f977e42
IA		 2658 usb_serial_deregister(&ftdi_sio_device);
2659failed_sio_register:
1da177e4
LT		 2660 return retval;
2661}
2662
2663
464cbb24 2664static void __exit ftdi_exit(void)
1da177e4
LT		 2665{
2666
441b62c1 2667 dbg("%s", __func__);
1da177e4 2668
464cbb24
AC		 2669 usb_deregister(&ftdi_driver);
2670 usb_serial_deregister(&ftdi_sio_device);
1da177e4
LT		 2671
2672}
2673
2674
2675module_init(ftdi_init);
2676module_exit(ftdi_exit);
2677
464cbb24
AC		 2678MODULE_AUTHOR(DRIVER_AUTHOR);
2679MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 2680MODULE_LICENSE("GPL");
2681
2682module_param(debug, bool, S_IRUGO | S_IWUSR);
2683MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2684module_param(vendor, ushort, 0);
2685MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2686 __MODULE_STRING(FTDI_VID)")");
2687module_param(product, ushort, 0);
68265043 2688MODULE_PARM_DESC(product, "User specified product ID");
1da177e4 2689
b760dac2
MG		 2690module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2691MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
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