]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blame - drivers/usb/serial/ftdi_sio.c
projects / mirror_ubuntu-zesty-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
ttydev: Fix up compile failures in the PPC build
[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
LT		 14 *
15 * See Documentation/usb/usb-serial.txt for more information on using this driver
16 *
17 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
18 * and extra documentation
19 *
504b55cc
GKH		 20 * Change entries from 2004 and earlier can be found in versions of this
21 * file in kernel versions prior to the 2.6.24 release.
1da177e4
LT		 22 *
23 */
24
25/* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
26/* Thanx to FTDI for so kindly providing details of the protocol required */
27/* to talk to the device */
28/* Thanx to gkh and the rest of the usb dev group for all code I have assimilated :-) */
29
1da177e4
LT		 30#include <linux/kernel.h>
31#include <linux/errno.h>
32#include <linux/init.h>
33#include <linux/slab.h>
34#include <linux/tty.h>
35#include <linux/tty_driver.h>
36#include <linux/tty_flip.h>
37#include <linux/module.h>
38#include <linux/spinlock.h>
39#include <asm/uaccess.h>
40#include <linux/usb.h>
41#include <linux/serial.h>
a969888c 42#include <linux/usb/serial.h>
1da177e4
LT		 43#include "ftdi_sio.h"
44
45/*
46 * Version Information
47 */
8f977e42 48#define DRIVER_VERSION "v1.4.3"
1da177e4
LT		 49#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
50#define DRIVER_DESC "USB FTDI Serial Converters Driver"
51
52static int debug;
fdcb0a0f
IA		 53static __u16 vendor = FTDI_VID;
54static __u16 product;
1da177e4 55
0ffbbe25
ON		 56struct ftdi_private {
57 ftdi_chip_type_t chip_type;
58 /* type of the device, either SIO or FT8U232AM */
59 int baud_base; /* baud base clock for divisor setting */
60 int custom_divisor; /* custom_divisor kludge, this is for baud_base (different from what goes to the chip!) */
61 __u16 last_set_data_urb_value ;
62 /* the last data state set - needed for doing a break */
63 int write_offset; /* This is the offset in the usb data block to write the serial data -
64 * it is different between devices
65 */
66 int flags; /* some ASYNC_xxxx flags are supported */
67 unsigned long last_dtr_rts; /* saved modem control outputs */
68 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
69 char prev_status, diff_status; /* Used for TIOCMIWAIT */
70 __u8 rx_flags; /* receive state flags (throttling) */
71 spinlock_t rx_lock; /* spinlock for receive state */
72 struct delayed_work rx_work;
73 struct usb_serial_port *port;
74 int rx_processed;
75 unsigned long rx_bytes;
76
77 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
78
669a6db1 79 speed_t force_baud; /* if non-zero, force the baud rate to this value */
0ffbbe25
ON		 80 int force_rtscts; /* if non-zero, force RTS-CTS to always be enabled */
81
82 spinlock_t tx_lock; /* spinlock for transmit state */
83 unsigned long tx_bytes;
84 unsigned long tx_outstanding_bytes;
85 unsigned long tx_outstanding_urbs;
86};
87
8f977e42
IA		 88/* struct ftdi_sio_quirk is used by devices requiring special attention. */
89struct ftdi_sio_quirk {
fa91d43b 90 int (*probe)(struct usb_serial *);
0ffbbe25 91 void (*port_probe)(struct ftdi_private *); /* Special settings for probed ports. */
8f977e42
IA		 92};
93
20734345 94static int ftdi_jtag_probe (struct usb_serial *serial);
546d7eec 95static int ftdi_mtxorb_hack_setup (struct usb_serial *serial);
0ffbbe25
ON		 96static void ftdi_USB_UIRT_setup (struct ftdi_private *priv);
97static void ftdi_HE_TIRA1_setup (struct ftdi_private *priv);
8f977e42 98
20734345
HW		 99static struct ftdi_sio_quirk ftdi_jtag_quirk = {
100 .probe = ftdi_jtag_probe,
fa91d43b
TL		 101};
102
546d7eec
KV		 103static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
104 .probe = ftdi_mtxorb_hack_setup,
105};
106
8f977e42 107static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
0ffbbe25 108 .port_probe = ftdi_USB_UIRT_setup,
8f977e42
IA		 109};
110
111static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
0ffbbe25 112 .port_probe = ftdi_HE_TIRA1_setup,
1da177e4
LT		 113};
114
115/*
116 * The 8U232AM has the same API as the sio except for:
117 * - it can support MUCH higher baudrates; up to:
118 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
119 * o 230400 at 12MHz
120 * so .. 8U232AM's baudrate setting codes are different
121 * - it has a two byte status code.
122 * - it returns characters every 16ms (the FTDI does it every 40ms)
123 *
124 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
125 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
126 * combinations in both tables.
8f977e42
IA		 127 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
128 * but I don't know if those ever went into mass production. [Ian Abbott]
1da177e4
LT		 129 */
130
131
1da177e4
LT		 132
133static struct usb_device_id id_table_combined [] = {
2011e924
JD		 134 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
135 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
6e1ab3ed
PM		 136 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
137 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
138 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
139 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
140 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
141 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
142 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
143 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
72a9f958 144 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
1da177e4 145 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
69737dfa 146 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
d099321b 147 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
fad14a0d 148 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
1da177e4
LT		 149 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
d8b21606 152 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
1da177e4 153 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
c0f8d561 154 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
1da177e4 155 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
2adb80e9 156 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
1da177e4
LT		 157 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
158 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
159 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
167 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
168 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
169 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
8f977e42
IA		 170 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
ebb3770c
RM		 177 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0100_PID) },
178 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0101_PID) },
179 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0102_PID) },
180 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0103_PID) },
181 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0104_PID) },
182 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0105_PID) },
183 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0106_PID) },
184 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0107_PID) },
185 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0108_PID) },
186 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0109_PID) },
187 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010A_PID) },
188 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010B_PID) },
189 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010C_PID) },
190 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010D_PID) },
191 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010E_PID) },
192 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_010F_PID) },
193 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0110_PID) },
194 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0111_PID) },
195 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0112_PID) },
196 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0113_PID) },
197 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0114_PID) },
198 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0115_PID) },
199 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0116_PID) },
200 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0117_PID) },
201 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0118_PID) },
202 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0119_PID) },
203 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011A_PID) },
204 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011B_PID) },
205 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011C_PID) },
206 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011D_PID) },
207 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011E_PID) },
208 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_011F_PID) },
209 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0120_PID) },
210 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0121_PID) },
211 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0122_PID) },
212 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0123_PID) },
213 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0124_PID) },
214 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0125_PID) },
215 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0126_PID) },
216 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0127_PID),
546d7eec 217 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
ebb3770c
RM		 218 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0128_PID) },
219 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0129_PID) },
220 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012A_PID) },
221 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012B_PID) },
222 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012C_PID),
223 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
224 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012D_PID) },
225 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012E_PID) },
226 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_012F_PID) },
227 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0130_PID) },
228 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0131_PID) },
229 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0132_PID) },
230 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0133_PID) },
231 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0134_PID) },
232 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0135_PID) },
233 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0136_PID) },
234 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0137_PID) },
235 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0138_PID) },
236 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0139_PID) },
237 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013A_PID) },
238 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013B_PID) },
239 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013C_PID) },
240 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013D_PID) },
241 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013E_PID) },
242 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_013F_PID) },
243 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0140_PID) },
244 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0141_PID) },
245 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0142_PID) },
246 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0143_PID) },
247 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0144_PID) },
248 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0145_PID) },
249 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0146_PID) },
250 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0147_PID) },
251 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0148_PID) },
252 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0149_PID) },
253 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014A_PID) },
254 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014B_PID) },
255 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014C_PID) },
256 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014D_PID) },
257 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014E_PID) },
258 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_014F_PID) },
259 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0150_PID) },
260 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0151_PID) },
261 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0152_PID) },
262 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0153_PID),
263 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
264 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0154_PID),
265 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
266 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0155_PID),
267 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
268 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0156_PID),
269 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
270 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0157_PID),
271 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
272 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0158_PID),
273 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
274 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0159_PID) },
275 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015A_PID) },
276 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015B_PID) },
277 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015C_PID) },
278 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015D_PID) },
279 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015E_PID) },
280 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_015F_PID) },
281 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0160_PID) },
282 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0161_PID) },
283 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0162_PID) },
284 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0163_PID) },
285 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0164_PID) },
286 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0165_PID) },
287 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0166_PID) },
288 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0167_PID) },
289 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0168_PID) },
290 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0169_PID) },
291 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016A_PID) },
292 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016B_PID) },
293 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016C_PID) },
294 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016D_PID) },
295 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016E_PID) },
296 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_016F_PID) },
297 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0170_PID) },
298 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0171_PID) },
299 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0172_PID) },
300 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0173_PID) },
301 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0174_PID) },
302 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0175_PID) },
303 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0176_PID) },
304 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0177_PID) },
305 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0178_PID) },
306 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0179_PID) },
307 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017A_PID) },
308 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017B_PID) },
309 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017C_PID) },
310 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017D_PID) },
311 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017E_PID) },
312 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_017F_PID) },
313 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0180_PID) },
314 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0181_PID) },
315 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0182_PID) },
316 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0183_PID) },
317 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0184_PID) },
318 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0185_PID) },
319 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0186_PID) },
320 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0187_PID) },
321 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0188_PID) },
322 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0189_PID) },
323 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018A_PID) },
324 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018B_PID) },
325 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018C_PID) },
326 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018D_PID) },
327 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018E_PID) },
328 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_018F_PID) },
329 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0190_PID) },
330 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0191_PID) },
331 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0192_PID) },
332 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0193_PID) },
333 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0194_PID) },
334 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0195_PID) },
335 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0196_PID) },
336 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0197_PID) },
337 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0198_PID) },
338 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_0199_PID) },
339 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019A_PID) },
340 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019B_PID) },
341 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019C_PID) },
342 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019D_PID) },
343 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019E_PID) },
344 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_019F_PID) },
345 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A0_PID) },
346 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A1_PID) },
347 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A2_PID) },
348 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A3_PID) },
349 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A4_PID) },
350 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A5_PID) },
351 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A6_PID) },
352 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A7_PID) },
353 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A8_PID) },
354 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01A9_PID) },
355 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AA_PID) },
356 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AB_PID) },
357 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AC_PID) },
358 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AD_PID) },
359 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AE_PID) },
360 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01AF_PID) },
361 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B0_PID) },
362 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B1_PID) },
363 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B2_PID) },
364 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B3_PID) },
365 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B4_PID) },
366 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B5_PID) },
367 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B6_PID) },
368 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B7_PID) },
369 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B8_PID) },
370 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01B9_PID) },
371 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BA_PID) },
372 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BB_PID) },
373 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BC_PID) },
374 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BD_PID) },
375 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BE_PID) },
376 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01BF_PID) },
377 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C0_PID) },
378 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C1_PID) },
379 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C2_PID) },
380 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C3_PID) },
381 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C4_PID) },
382 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C5_PID) },
383 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C6_PID) },
384 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C7_PID) },
385 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C8_PID) },
386 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01C9_PID) },
387 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CA_PID) },
388 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CB_PID) },
389 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CC_PID) },
390 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CD_PID) },
391 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CE_PID) },
392 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01CF_PID) },
393 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D0_PID) },
394 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D1_PID) },
395 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D2_PID) },
396 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D3_PID) },
397 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D4_PID) },
398 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D5_PID) },
399 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D6_PID) },
400 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D7_PID) },
401 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D8_PID) },
402 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01D9_PID) },
403 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DA_PID) },
404 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DB_PID) },
405 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DC_PID) },
406 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DD_PID) },
407 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DE_PID) },
408 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01DF_PID) },
409 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E0_PID) },
410 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E1_PID) },
411 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E2_PID) },
412 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E3_PID) },
413 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E4_PID) },
414 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E5_PID) },
415 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E6_PID) },
416 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E7_PID) },
417 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E8_PID) },
418 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01E9_PID) },
419 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EA_PID) },
420 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EB_PID) },
421 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EC_PID) },
422 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01ED_PID) },
423 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EE_PID) },
424 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01EF_PID) },
425 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F0_PID) },
426 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F1_PID) },
427 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F2_PID) },
428 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F3_PID) },
429 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F4_PID) },
430 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F5_PID) },
431 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F6_PID) },
432 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F7_PID) },
433 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F8_PID) },
434 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01F9_PID) },
435 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FA_PID) },
436 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FB_PID) },
437 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FC_PID) },
438 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FD_PID) },
439 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FE_PID) },
440 { USB_DEVICE(MTXORB_VID,MTXORB_FTDI_RANGE_01FF_PID) },
8f977e42 441 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
1da177e4 442 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
274a4bbc 443 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
868e440d 444 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
1da177e4
LT		 445 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
446 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
447 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
448 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
a1484827 449 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
1da177e4
LT		 450 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
451 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
452 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
453 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
454 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
455 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
456 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
457 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
492 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
493 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
8f977e42
IA		 494 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
495 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
496 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
497 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
1da177e4
LT		 498 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
499 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
500 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
501 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
8f977e42
IA		 502 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
503 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
504 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
505 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
506 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
507 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
508 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
509 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
510 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
511 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
512 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
513 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
514 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
1da177e4 518 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
47900743 519 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
e6ac4a40
IA		 520 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
207c47e1 522 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
bde62185 523 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
4eaf60e0
TS		 524 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
e6ac4a40 532 /*
42f8aa94
PS		 533 * Due to many user requests for multiple ELV devices we enable
534 * them by default.
e6ac4a40 535 */
42f8aa94
PS		 536 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
542 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
543 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
544 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
545 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
546 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
4ae897df 554 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
42f8aa94 555 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
5c09d144
DB		 556 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
557 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
558 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
559 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
560 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
ec434e9b 563 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
1da177e4
LT		 564 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
565 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
566 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
567 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
e6ac4a40 568 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
1da177e4 569 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
ef31fec0 570 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
6f92872c 571 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
1da177e4
LT		 572 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
573 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
574 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
575 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
6f92872c
IA		 576 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
577 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
e6ac4a40
IA		 578 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
579 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
580 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
581 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
582 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
583 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
584 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
585 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
6f92872c 586 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
8f977e42 587 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
34d1a8aa
IA		 588 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
589 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
9b1513d9
IA		 590 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
591 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
34d1a8aa
IA		 592 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
593 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
594 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
595 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
740a4282
IA		 596 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
597 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
9b1513d9 598 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
c1f8ea7d
SH		 599 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
600 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
c9c7746d
RS		 601 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
09c280a2 603 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
c9c7746d 604 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
09c280a2 605 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
34910434 606 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
b4723ae3
IA		 607 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
608 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
effac8be 609 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
641adaae 610 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
7e1c0b86 611 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
a94b52ac
IA		 612 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
ce40d290 614 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
cdd3b156 615 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
7e0258fd 616 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
bf58fbd5 617 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
62a13db3 618 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
20a0f47e 619 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
eb79b4fd 620 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
48437486 621 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
e1979fef 622 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
eaede2cb 623 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
9978f9e1
IA		 624 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
625 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
626 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
40c36092 627 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
822c7ef4 628 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
762e92fa 629 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
d7fde2d6 630 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
4bb0ef19 631 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
11171d1b 632 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
fa91d43b 633 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
20734345
HW		 634 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
635 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
636 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
637 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
638 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
26ab7053 639 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
2542335c 640 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
fdcb0a0f
IA		 641 { }, /* Optional parameter entry */
642 { } /* Terminating entry */
1da177e4
LT		 643};
644
645MODULE_DEVICE_TABLE (usb, id_table_combined);
646
647static struct usb_driver ftdi_driver = {
648 .name = "ftdi_sio",
649 .probe = usb_serial_probe,
650 .disconnect = usb_serial_disconnect,
651 .id_table = id_table_combined,
5c09d144 652 .no_dynamic_id = 1,
1da177e4
LT		 653};
654
4c4c9432 655static const char *ftdi_chip_name[] = {
1da177e4
LT		 656 [SIO] = "SIO", /* the serial part of FT8U100AX */
657 [FT8U232AM] = "FT8U232AM",
658 [FT232BM] = "FT232BM",
659 [FT2232C] = "FT2232C",
d8b21606 660 [FT232RL] = "FT232RL",
1da177e4
LT		 661};
662
663
664/* Constants for read urb and write urb */
665#define BUFSZ 512
666#define PKTSZ 64
667
668/* rx_flags */
669#define THROTTLED 0x01
670#define ACTUALLY_THROTTLED 0x02
671
1da177e4
LT		 672/* Used for TIOCMIWAIT */
673#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
674#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
675/* End TIOCMIWAIT */
676
bbc5d276
RK		 677#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
678 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
1da177e4
LT		 679
680/* function prototypes for a FTDI serial converter */
8f977e42 681static int ftdi_sio_probe (struct usb_serial *serial, const struct usb_device_id *id);
1da177e4 682static void ftdi_shutdown (struct usb_serial *serial);
12bdbe03
JR		 683static int ftdi_sio_port_probe (struct usb_serial_port *port);
684static int ftdi_sio_port_remove (struct usb_serial_port *port);
1da177e4
LT		 685static int ftdi_open (struct usb_serial_port *port, struct file *filp);
686static void ftdi_close (struct usb_serial_port *port, struct file *filp);
687static int ftdi_write (struct usb_serial_port *port, const unsigned char *buf, int count);
688static int ftdi_write_room (struct usb_serial_port *port);
689static int ftdi_chars_in_buffer (struct usb_serial_port *port);
7d12e780
DH		 690static void ftdi_write_bulk_callback (struct urb *urb);
691static void ftdi_read_bulk_callback (struct urb *urb);
c4028958 692static void ftdi_process_read (struct work_struct *work);
606d099c 693static void ftdi_set_termios (struct usb_serial_port *port, struct ktermios * old);
1da177e4
LT		 694static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file);
695static int ftdi_tiocmset (struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear);
696static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
697static void ftdi_break_ctl (struct usb_serial_port *port, int break_state );
698static void ftdi_throttle (struct usb_serial_port *port);
699static void ftdi_unthrottle (struct usb_serial_port *port);
700
701static unsigned short int ftdi_232am_baud_base_to_divisor (int baud, int base);
702static unsigned short int ftdi_232am_baud_to_divisor (int baud);
703static __u32 ftdi_232bm_baud_base_to_divisor (int baud, int base);
704static __u32 ftdi_232bm_baud_to_divisor (int baud);
705
ea65370d 706static struct usb_serial_driver ftdi_sio_device = {
18fcac35
GKH		 707 .driver = {
708 .owner = THIS_MODULE,
269bda1c 709 .name = "ftdi_sio",
18fcac35 710 },
269bda1c 711 .description = "FTDI USB Serial Device",
d9b1b787 712 .usb_driver = &ftdi_driver ,
8f977e42 713 .id_table = id_table_combined,
1da177e4 714 .num_ports = 1,
8f977e42 715 .probe = ftdi_sio_probe,
12bdbe03
JR		 716 .port_probe = ftdi_sio_port_probe,
717 .port_remove = ftdi_sio_port_remove,
1da177e4
LT		 718 .open = ftdi_open,
719 .close = ftdi_close,
720 .throttle = ftdi_throttle,
721 .unthrottle = ftdi_unthrottle,
722 .write = ftdi_write,
723 .write_room = ftdi_write_room,
724 .chars_in_buffer = ftdi_chars_in_buffer,
725 .read_bulk_callback = ftdi_read_bulk_callback,
726 .write_bulk_callback = ftdi_write_bulk_callback,
727 .tiocmget = ftdi_tiocmget,
728 .tiocmset = ftdi_tiocmset,
729 .ioctl = ftdi_ioctl,
730 .set_termios = ftdi_set_termios,
731 .break_ctl = ftdi_break_ctl,
1da177e4
LT		 732 .shutdown = ftdi_shutdown,
733};
734
1da177e4
LT		 735
736#define WDR_TIMEOUT 5000 /* default urb timeout */
279e1545 737#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
1da177e4
LT		 738
739/* High and low are for DTR, RTS etc etc */
740#define HIGH 1
741#define LOW 0
742
22465400
IA		 743/* number of outstanding urbs to prevent userspace DoS from happening */
744#define URB_UPPER_LIMIT 42
745
1da177e4
LT		 746/*
747 * ***************************************************************************
fa91d43b 748 * Utility functions
1da177e4
LT		 749 * ***************************************************************************
750 */
751
752static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
753{
754 unsigned short int divisor;
755 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
756 if ((divisor3 & 0x7) == 7) divisor3 ++; // round x.7/8 up to x+1
757 divisor = divisor3 >> 3;
758 divisor3 &= 0x7;
759 if (divisor3 == 1) divisor |= 0xc000; else // 0.125
760 if (divisor3 >= 4) divisor |= 0x4000; else // 0.5
761 if (divisor3 != 0) divisor |= 0x8000; // 0.25
762 if (divisor == 1) divisor = 0; /* special case for maximum baud rate */
763 return divisor;
764}
765
766static unsigned short int ftdi_232am_baud_to_divisor(int baud)
767{
768 return(ftdi_232am_baud_base_to_divisor(baud, 48000000));
769}
770
771static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
772{
773 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
774 __u32 divisor;
775 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
776 divisor = divisor3 >> 3;
777 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
778 /* Deal with special cases for highest baud rates. */
779 if (divisor == 1) divisor = 0; else // 1.0
780 if (divisor == 0x4001) divisor = 1; // 1.5
781 return divisor;
782}
783
784static __u32 ftdi_232bm_baud_to_divisor(int baud)
785{
786 return(ftdi_232bm_baud_base_to_divisor(baud, 48000000));
787}
788
74ede0ff
IA		 789#define set_mctrl(port, set) update_mctrl((port), (set), 0)
790#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
791
792static int update_mctrl(struct usb_serial_port *port, unsigned int set, unsigned int clear)
1da177e4
LT		 793{
794 struct ftdi_private *priv = usb_get_serial_port_data(port);
795 char *buf;
74ede0ff 796 unsigned urb_value;
1da177e4 797 int rv;
1da177e4 798
74ede0ff 799 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
441b62c1 800 dbg("%s - DTR|RTS not being set|cleared", __func__);
74ede0ff
IA		 801 return 0; /* no change */
802 }
1da177e4 803
1da177e4 804 buf = kmalloc(1, GFP_NOIO);
9b0f2582 805 if (!buf)
1da177e4 806 return -ENOMEM;
74ede0ff
IA		 807
808 clear &= ~set; /* 'set' takes precedence over 'clear' */
809 urb_value = 0;
810 if (clear & TIOCM_DTR)
811 urb_value |= FTDI_SIO_SET_DTR_LOW;
812 if (clear & TIOCM_RTS)
813 urb_value |= FTDI_SIO_SET_RTS_LOW;
814 if (set & TIOCM_DTR)
815 urb_value |= FTDI_SIO_SET_DTR_HIGH;
816 if (set & TIOCM_RTS)
817 urb_value |= FTDI_SIO_SET_RTS_HIGH;
1da177e4
LT		 818 rv = usb_control_msg(port->serial->dev,
819 usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 820 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1da177e4 821 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
74ede0ff 822 urb_value, priv->interface,
1da177e4
LT		 823 buf, 0, WDR_TIMEOUT);
824
825 kfree(buf);
74ede0ff
IA		 826 if (rv < 0) {
827 err("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
441b62c1 828 __func__,
74ede0ff
IA		 829 (set & TIOCM_DTR) ? "HIGH" :
830 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
831 (set & TIOCM_RTS) ? "HIGH" :
832 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
833 } else {
441b62c1 834 dbg("%s - DTR %s, RTS %s", __func__,
74ede0ff
IA		 835 (set & TIOCM_DTR) ? "HIGH" :
836 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
837 (set & TIOCM_RTS) ? "HIGH" :
838 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
9b0f2582 839 /* FIXME: locking on last_dtr_rts */
74ede0ff
IA		 840 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
841 }
1da177e4
LT		 842 return rv;
843}
844
845
846static __u32 get_ftdi_divisor(struct usb_serial_port * port);
847
848
849static int change_speed(struct usb_serial_port *port)
850{
851 struct ftdi_private *priv = usb_get_serial_port_data(port);
852 char *buf;
853 __u16 urb_value;
854 __u16 urb_index;
855 __u32 urb_index_value;
856 int rv;
857
858 buf = kmalloc(1, GFP_NOIO);
859 if (!buf)
860 return -ENOMEM;
861
862 urb_index_value = get_ftdi_divisor(port);
863 urb_value = (__u16)urb_index_value;
864 urb_index = (__u16)(urb_index_value >> 16);
865 if (priv->interface) { /* FT2232C */
866 urb_index = (__u16)((urb_index << 8) | priv->interface);
867 }
5c09d144 868
1da177e4
LT		 869 rv = usb_control_msg(port->serial->dev,
870 usb_sndctrlpipe(port->serial->dev, 0),
871 FTDI_SIO_SET_BAUDRATE_REQUEST,
872 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
873 urb_value, urb_index,
279e1545 874 buf, 0, WDR_SHORT_TIMEOUT);
1da177e4
LT		 875
876 kfree(buf);
877 return rv;
878}
879
880
881static __u32 get_ftdi_divisor(struct usb_serial_port * port)
882{ /* get_ftdi_divisor */
883 struct ftdi_private *priv = usb_get_serial_port_data(port);
884 __u32 div_value = 0;
885 int div_okay = 1;
886 int baud;
887
888 /*
889 * The logic involved in setting the baudrate can be cleanly split in 3 steps.
890 * Obtaining the actual baud rate is a little tricky since unix traditionally
891 * somehow ignored the possibility to set non-standard baud rates.
892 * 1. Standard baud rates are set in tty->termios->c_cflag
893 * 2. If these are not enough, you can set any speed using alt_speed as follows:
894 * - set tty->termios->c_cflag speed to B38400
895 * - set your real speed in tty->alt_speed; it gets ignored when
896 * alt_speed==0, (or)
897 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
898 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], this just
899 * sets alt_speed to (HI: 57600, VHI: 115200, SHI: 230400, WARP: 460800)
900 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
901 * 3. You can also set baud rate by setting custom divisor as follows
902 * - set tty->termios->c_cflag speed to B38400
903 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
904 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
905 * o custom_divisor set to baud_base / your_new_baudrate
906 * ** Step 3 is done courtesy of code borrowed from serial.c - I should really
907 * spend some time and separate+move this common code to serial.c, it is
908 * replicated in nearly every serial driver you see.
909 */
910
911 /* 1. Get the baud rate from the tty settings, this observes alt_speed hack */
912
913 baud = tty_get_baud_rate(port->tty);
441b62c1 914 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
1da177e4
LT		 915
916 /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */
917
918 if (baud == 38400 &&
919 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
920 (priv->custom_divisor)) {
921 baud = priv->baud_base / priv->custom_divisor;
441b62c1 922 dbg("%s - custom divisor %d sets baud rate to %d", __func__, priv->custom_divisor, baud);
1da177e4
LT		 923 }
924
925 /* 3. Convert baudrate to device-specific divisor */
926
5c09d144 927 if (!baud) baud = 9600;
1da177e4
LT		 928 switch(priv->chip_type) {
929 case SIO: /* SIO chip */
930 switch(baud) {
931 case 300: div_value = ftdi_sio_b300; break;
932 case 600: div_value = ftdi_sio_b600; break;
933 case 1200: div_value = ftdi_sio_b1200; break;
934 case 2400: div_value = ftdi_sio_b2400; break;
935 case 4800: div_value = ftdi_sio_b4800; break;
936 case 9600: div_value = ftdi_sio_b9600; break;
937 case 19200: div_value = ftdi_sio_b19200; break;
938 case 38400: div_value = ftdi_sio_b38400; break;
939 case 57600: div_value = ftdi_sio_b57600; break;
940 case 115200: div_value = ftdi_sio_b115200; break;
941 } /* baud */
942 if (div_value == 0) {
441b62c1 943 dbg("%s - Baudrate (%d) requested is not supported", __func__, baud);
1da177e4 944 div_value = ftdi_sio_b9600;
bd5e47cc 945 baud = 9600;
1da177e4
LT		 946 div_okay = 0;
947 }
948 break;
949 case FT8U232AM: /* 8U232AM chip */
950 if (baud <= 3000000) {
951 div_value = ftdi_232am_baud_to_divisor(baud);
952 } else {
441b62c1 953 dbg("%s - Baud rate too high!", __func__);
bd5e47cc 954 baud = 9600;
1da177e4
LT		 955 div_value = ftdi_232am_baud_to_divisor(9600);
956 div_okay = 0;
957 }
958 break;
959 case FT232BM: /* FT232BM chip */
960 case FT2232C: /* FT2232C chip */
3b009c63 961 case FT232RL:
1da177e4
LT		 962 if (baud <= 3000000) {
963 div_value = ftdi_232bm_baud_to_divisor(baud);
964 } else {
441b62c1 965 dbg("%s - Baud rate too high!", __func__);
1da177e4
LT		 966 div_value = ftdi_232bm_baud_to_divisor(9600);
967 div_okay = 0;
669a6db1 968 baud = 9600;
1da177e4
LT		 969 }
970 break;
971 } /* priv->chip_type */
972
973 if (div_okay) {
974 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
441b62c1 975 __func__, baud, (unsigned long)div_value,
1da177e4
LT		 976 ftdi_chip_name[priv->chip_type]);
977 }
978
669a6db1 979 tty_encode_baud_rate(port->tty, baud, baud);
1da177e4
LT		 980 return(div_value);
981}
982
983
984static int get_serial_info(struct usb_serial_port * port, struct serial_struct __user * retinfo)
985{
986 struct ftdi_private *priv = usb_get_serial_port_data(port);
987 struct serial_struct tmp;
988
989 if (!retinfo)
990 return -EFAULT;
991 memset(&tmp, 0, sizeof(tmp));
992 tmp.flags = priv->flags;
993 tmp.baud_base = priv->baud_base;
994 tmp.custom_divisor = priv->custom_divisor;
995 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
996 return -EFAULT;
997 return 0;
998} /* get_serial_info */
999
1000
1001static int set_serial_info(struct usb_serial_port * port, struct serial_struct __user * newinfo)
1002{ /* set_serial_info */
1003 struct ftdi_private *priv = usb_get_serial_port_data(port);
1004 struct serial_struct new_serial;
1005 struct ftdi_private old_priv;
1006
1007 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1008 return -EFAULT;
1009 old_priv = * priv;
1010
1011 /* Do error checking and permission checking */
1012
1013 if (!capable(CAP_SYS_ADMIN)) {
1014 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1015 (priv->flags & ~ASYNC_USR_MASK)))
1016 return -EPERM;
1017 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1018 (new_serial.flags & ASYNC_USR_MASK));
1019 priv->custom_divisor = new_serial.custom_divisor;
1020 goto check_and_exit;
1021 }
1022
1023 if ((new_serial.baud_base != priv->baud_base) &&
1024 (new_serial.baud_base < 9600))
1025 return -EINVAL;
1026
1027 /* Make the changes - these are privileged changes! */
1028
1029 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
5c09d144 1030 (new_serial.flags & ASYNC_FLAGS));
1da177e4
LT		 1031 priv->custom_divisor = new_serial.custom_divisor;
1032
1033 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1034
1035check_and_exit:
1036 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1037 (priv->flags & ASYNC_SPD_MASK)) {
1038 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1039 port->tty->alt_speed = 57600;
1040 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1041 port->tty->alt_speed = 115200;
1042 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1043 port->tty->alt_speed = 230400;
1044 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1045 port->tty->alt_speed = 460800;
1046 else
1047 port->tty->alt_speed = 0;
1048 }
1049 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1050 (priv->flags & ASYNC_SPD_MASK)) ||
1051 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1052 (old_priv.custom_divisor != priv->custom_divisor))) {
1053 change_speed(port);
1054 }
5c09d144 1055
1da177e4
LT		 1056 return (0);
1057
1058} /* set_serial_info */
1059
1060
8f977e42
IA		 1061/* Determine type of FTDI chip based on USB config and descriptor. */
1062static void ftdi_determine_type(struct usb_serial_port *port)
1063{
1064 struct ftdi_private *priv = usb_get_serial_port_data(port);
1065 struct usb_serial *serial = port->serial;
1066 struct usb_device *udev = serial->dev;
1067 unsigned version;
1068 unsigned interfaces;
1069
1070 /* Assume it is not the original SIO device for now. */
f5e09b7c 1071 priv->baud_base = 48000000 / 2;
8f977e42
IA		 1072 priv->write_offset = 0;
1073
1074 version = le16_to_cpu(udev->descriptor.bcdDevice);
1075 interfaces = udev->actconfig->desc.bNumInterfaces;
441b62c1 1076 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
8f977e42
IA		 1077 version, interfaces);
1078 if (interfaces > 1) {
1079 int inter;
1080
1081 /* Multiple interfaces. Assume FT2232C. */
1082 priv->chip_type = FT2232C;
1083 /* Determine interface code. */
1084 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1085 if (inter == 0) {
1086 priv->interface = PIT_SIOA;
1087 } else {
1088 priv->interface = PIT_SIOB;
1089 }
1090 /* BM-type devices have a bug where bcdDevice gets set
1091 * to 0x200 when iSerialNumber is 0. */
1092 if (version < 0x500) {
1093 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
441b62c1 1094 __func__);
8f977e42
IA		 1095 }
1096 } else if (version < 0x200) {
1097 /* Old device. Assume its the original SIO. */
1098 priv->chip_type = SIO;
1099 priv->baud_base = 12000000 / 16;
1100 priv->write_offset = 1;
1101 } else if (version < 0x400) {
1102 /* Assume its an FT8U232AM (or FT8U245AM) */
1103 /* (It might be a BM because of the iSerialNumber bug,
1104 * but it will still work as an AM device.) */
1105 priv->chip_type = FT8U232AM;
3b009c63 1106 } else if (version < 0x600) {
8f977e42
IA		 1107 /* Assume its an FT232BM (or FT245BM) */
1108 priv->chip_type = FT232BM;
3b009c63
DB		 1109 } else {
1110 /* Assume its an FT232R */
1111 priv->chip_type = FT232RL;
8f977e42
IA		 1112 }
1113 info("Detected %s", ftdi_chip_name[priv->chip_type]);
1114}
1115
1116
1da177e4
LT		 1117/*
1118 * ***************************************************************************
1119 * Sysfs Attribute
1120 * ***************************************************************************
1121 */
1122
060b8845 1123static ssize_t show_latency_timer(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 1124{
1125 struct usb_serial_port *port = to_usb_serial_port(dev);
1126 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1127 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1128 unsigned short latency = 0;
1129 int rv = 0;
5c09d144 1130
5c09d144 1131
441b62c1 1132 dbg("%s",__func__);
5c09d144 1133
1da177e4
LT		 1134 rv = usb_control_msg(udev,
1135 usb_rcvctrlpipe(udev, 0),
1136 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1137 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1138 0, priv->interface,
1da177e4 1139 (char*) &latency, 1, WDR_TIMEOUT);
5c09d144 1140
1da177e4 1141 if (rv < 0) {
898eb71c 1142 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1da177e4
LT		 1143 return -EIO;
1144 }
1145 return sprintf(buf, "%i\n", latency);
1146}
1147
1148/* Write a new value of the latency timer, in units of milliseconds. */
060b8845 1149static ssize_t store_latency_timer(struct device *dev, struct device_attribute *attr, const char *valbuf,
1da177e4
LT		 1150 size_t count)
1151{
1152 struct usb_serial_port *port = to_usb_serial_port(dev);
1153 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1154 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1155 char buf[1];
1156 int v = simple_strtoul(valbuf, NULL, 10);
1157 int rv = 0;
5c09d144 1158
441b62c1 1159 dbg("%s: setting latency timer = %i", __func__, v);
5c09d144 1160
1da177e4
LT		 1161 rv = usb_control_msg(udev,
1162 usb_sndctrlpipe(udev, 0),
1163 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1164 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
5c09d144 1165 v, priv->interface,
1da177e4 1166 buf, 0, WDR_TIMEOUT);
5c09d144 1167
1da177e4 1168 if (rv < 0) {
898eb71c 1169 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1da177e4
LT		 1170 return -EIO;
1171 }
5c09d144 1172
1da177e4
LT		 1173 return count;
1174}
1175
1176/* Write an event character directly to the FTDI register. The ASCII
1177 value is in the low 8 bits, with the enable bit in the 9th bit. */
060b8845 1178static ssize_t store_event_char(struct device *dev, struct device_attribute *attr, const char *valbuf,
1da177e4
LT		 1179 size_t count)
1180{
1181 struct usb_serial_port *port = to_usb_serial_port(dev);
1182 struct ftdi_private *priv = usb_get_serial_port_data(port);
12bdbe03 1183 struct usb_device *udev = port->serial->dev;
1da177e4
LT		 1184 char buf[1];
1185 int v = simple_strtoul(valbuf, NULL, 10);
1186 int rv = 0;
5c09d144 1187
441b62c1 1188 dbg("%s: setting event char = %i", __func__, v);
5c09d144 1189
1da177e4
LT		 1190 rv = usb_control_msg(udev,
1191 usb_sndctrlpipe(udev, 0),
1192 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1193 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
5c09d144 1194 v, priv->interface,
1da177e4 1195 buf, 0, WDR_TIMEOUT);
5c09d144 1196
1da177e4
LT		 1197 if (rv < 0) {
1198 dbg("Unable to write event character: %i", rv);
1199 return -EIO;
1200 }
5c09d144 1201
1da177e4
LT		 1202 return count;
1203}
1204
1205static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, store_latency_timer);
1206static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1207
12bdbe03 1208static int create_sysfs_attrs(struct usb_serial_port *port)
13f4db9e 1209{
12bdbe03 1210 struct ftdi_private *priv = usb_get_serial_port_data(port);
13f4db9e 1211 int retval = 0;
1da177e4 1212
441b62c1 1213 dbg("%s",__func__);
13f4db9e 1214
1da177e4
LT		 1215 /* XXX I've no idea if the original SIO supports the event_char
1216 * sysfs parameter, so I'm playing it safe. */
1217 if (priv->chip_type != SIO) {
1218 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
12bdbe03 1219 retval = device_create_file(&port->dev, &dev_attr_event_char);
13f4db9e 1220 if ((!retval) &&
97cd49eb
SM		 1221 (priv->chip_type == FT232BM ||
1222 priv->chip_type == FT2232C ||
1223 priv->chip_type == FT232RL)) {
12bdbe03 1224 retval = device_create_file(&port->dev,
13f4db9e 1225 &dev_attr_latency_timer);
1da177e4
LT		 1226 }
1227 }
13f4db9e 1228 return retval;
1da177e4
LT		 1229}
1230
12bdbe03 1231static void remove_sysfs_attrs(struct usb_serial_port *port)
1da177e4 1232{
12bdbe03 1233 struct ftdi_private *priv = usb_get_serial_port_data(port);
1da177e4 1234
441b62c1 1235 dbg("%s",__func__);
1da177e4 1236
1da177e4
LT		 1237 /* XXX see create_sysfs_attrs */
1238 if (priv->chip_type != SIO) {
12bdbe03 1239 device_remove_file(&port->dev, &dev_attr_event_char);
ed6e5282
AB		 1240 if (priv->chip_type == FT232BM ||
1241 priv->chip_type == FT2232C ||
1242 priv->chip_type == FT232RL) {
12bdbe03 1243 device_remove_file(&port->dev, &dev_attr_latency_timer);
1da177e4
LT		 1244 }
1245 }
5c09d144 1246
1da177e4
LT		 1247}
1248
1249/*
1250 * ***************************************************************************
1251 * FTDI driver specific functions
1252 * ***************************************************************************
1253 */
1254
8f977e42
IA		 1255/* Probe function to check for special devices */
1256static int ftdi_sio_probe (struct usb_serial *serial, const struct usb_device_id *id)
1257{
fa91d43b
TL		 1258 struct ftdi_sio_quirk *quirk = (struct ftdi_sio_quirk *)id->driver_info;
1259
1260 if (quirk && quirk->probe) {
1261 int ret = quirk->probe(serial);
1262 if (ret != 0)
1263 return ret;
1264 }
1265
8f977e42
IA		 1266 usb_set_serial_data(serial, (void *)id->driver_info);
1267
fa91d43b 1268 return 0;
8f977e42
IA		 1269}
1270
12bdbe03 1271static int ftdi_sio_port_probe(struct usb_serial_port *port)
1da177e4 1272{
1da177e4 1273 struct ftdi_private *priv;
0ffbbe25
ON		 1274 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1275
13f4db9e 1276
441b62c1 1277 dbg("%s",__func__);
1da177e4 1278
80b6ca48 1279 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1da177e4 1280 if (!priv){
441b62c1 1281 err("%s- kmalloc(%Zd) failed.", __func__, sizeof(struct ftdi_private));
1da177e4
LT		 1282 return -ENOMEM;
1283 }
1da177e4
LT		 1284
1285 spin_lock_init(&priv->rx_lock);
22465400 1286 spin_lock_init(&priv->tx_lock);
1da177e4
LT		 1287 init_waitqueue_head(&priv->delta_msr_wait);
1288 /* This will push the characters through immediately rather
1289 than queue a task to deliver them */
1290 priv->flags = ASYNC_LOW_LATENCY;
1291
0ffbbe25
ON		 1292 if (quirk && quirk->port_probe)
1293 quirk->port_probe(priv);
1294
1da177e4 1295 /* Increase the size of read buffers */
1bc3c9e1 1296 kfree(port->bulk_in_buffer);
1da177e4
LT		 1297 port->bulk_in_buffer = kmalloc (BUFSZ, GFP_KERNEL);
1298 if (!port->bulk_in_buffer) {
1299 kfree (priv);
1300 return -ENOMEM;
1301 }
1302 if (port->read_urb) {
1303 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1304 port->read_urb->transfer_buffer_length = BUFSZ;
1305 }
1306
c4028958
DH		 1307 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1308 priv->port = port;
76854cea 1309
1da177e4
LT		 1310 /* Free port's existing write urb and transfer buffer. */
1311 if (port->write_urb) {
1312 usb_free_urb (port->write_urb);
1313 port->write_urb = NULL;
1314 }
1bc3c9e1
JJ		 1315 kfree(port->bulk_out_buffer);
1316 port->bulk_out_buffer = NULL;
1da177e4 1317
12bdbe03 1318 usb_set_serial_port_data(port, priv);
1da177e4 1319
12bdbe03
JR		 1320 ftdi_determine_type (port);
1321 create_sysfs_attrs(port);
1322 return 0;
1323}
1da177e4 1324
8f977e42
IA		 1325/* Setup for the USB-UIRT device, which requires hardwired
1326 * baudrate (38400 gets mapped to 312500) */
1da177e4 1327/* Called from usbserial:serial_probe */
0ffbbe25 1328static void ftdi_USB_UIRT_setup (struct ftdi_private *priv)
8f977e42 1329{
441b62c1 1330 dbg("%s",__func__);
1da177e4 1331
1da177e4
LT		 1332 priv->flags |= ASYNC_SPD_CUST;
1333 priv->custom_divisor = 77;
669a6db1 1334 priv->force_baud = 38400;
8f977e42 1335} /* ftdi_USB_UIRT_setup */
1da177e4 1336
8f977e42
IA		 1337/* Setup for the HE-TIRA1 device, which requires hardwired
1338 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
0ffbbe25 1339static void ftdi_HE_TIRA1_setup (struct ftdi_private *priv)
8f977e42 1340{
441b62c1 1341 dbg("%s",__func__);
1da177e4 1342
1da177e4
LT		 1343 priv->flags |= ASYNC_SPD_CUST;
1344 priv->custom_divisor = 240;
669a6db1 1345 priv->force_baud = 38400;
1da177e4 1346 priv->force_rtscts = 1;
8f977e42 1347} /* ftdi_HE_TIRA1_setup */
1da177e4 1348
fa91d43b 1349/*
20734345
HW		 1350 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1351 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1352 * userspace using openocd.
fa91d43b 1353 */
20734345 1354static int ftdi_jtag_probe(struct usb_serial *serial)
fa91d43b
TL		 1355{
1356 struct usb_device *udev = serial->dev;
1357 struct usb_interface *interface = serial->interface;
1358
441b62c1 1359 dbg("%s",__func__);
fa91d43b
TL		 1360
1361 if (interface == udev->actconfig->interface[0]) {
20734345 1362 info("Ignoring serial port reserved for JTAG");
fa91d43b
TL		 1363 return -ENODEV;
1364 }
1365
1366 return 0;
1367}
1da177e4 1368
546d7eec
KV		 1369/*
1370 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1371 * We have to correct it if we want to read from it.
1372 */
1373static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1374{
1375 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1376 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1377
1378 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
fd05e720 1379 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
546d7eec
KV		 1380 info("Fixing invalid wMaxPacketSize on read pipe");
1381 }
1382
1383 return 0;
1384}
1385
5c09d144 1386/* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1da177e4
LT		 1387 * it is called when the usb device is disconnected
1388 *
1389 * usbserial:usb_serial_disconnect
1390 * calls __serial_close for each open of the port
1391 * shutdown is called then (ie ftdi_shutdown)
1392 */
1da177e4 1393static void ftdi_shutdown (struct usb_serial *serial)
12bdbe03 1394{
441b62c1 1395 dbg("%s", __func__);
12bdbe03 1396}
5c09d144 1397
12bdbe03
JR		 1398static int ftdi_sio_port_remove(struct usb_serial_port *port)
1399{
1da177e4
LT		 1400 struct ftdi_private *priv = usb_get_serial_port_data(port);
1401
441b62c1 1402 dbg("%s", __func__);
1da177e4 1403
12bdbe03 1404 remove_sysfs_attrs(port);
5c09d144
DB		 1405
1406 /* all open ports are closed at this point
1407 * (by usbserial.c:__serial_close, which calls ftdi_close)
1da177e4
LT		 1408 */
1409
1410 if (priv) {
1411 usb_set_serial_port_data(port, NULL);
1412 kfree(priv);
1413 }
1da177e4 1414
12bdbe03
JR		 1415 return 0;
1416}
1da177e4
LT		 1417
1418static int ftdi_open (struct usb_serial_port *port, struct file *filp)
1419{ /* ftdi_open */
1da177e4
LT		 1420 struct usb_device *dev = port->serial->dev;
1421 struct ftdi_private *priv = usb_get_serial_port_data(port);
1422 unsigned long flags;
5c09d144 1423
1da177e4
LT		 1424 int result = 0;
1425 char buf[1]; /* Needed for the usb_control_msg I think */
1426
441b62c1 1427 dbg("%s", __func__);
1da177e4 1428
22465400
IA		 1429 spin_lock_irqsave(&priv->tx_lock, flags);
1430 priv->tx_bytes = 0;
1431 spin_unlock_irqrestore(&priv->tx_lock, flags);
1432 spin_lock_irqsave(&priv->rx_lock, flags);
1433 priv->rx_bytes = 0;
1434 spin_unlock_irqrestore(&priv->rx_lock, flags);
1435
57845bd1
GL		 1436 if (port->tty)
1437 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1da177e4
LT		 1438
1439 /* No error checking for this (will get errors later anyway) */
1440 /* See ftdi_sio.h for description of what is reset */
1441 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144
DB		 1442 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1443 FTDI_SIO_RESET_SIO,
1da177e4
LT		 1444 priv->interface, buf, 0, WDR_TIMEOUT);
1445
1446 /* Termios defaults are set by usb_serial_init. We don't change
1447 port->tty->termios - this would loose speed settings, etc.
1448 This is same behaviour as serial.c/rs_open() - Kuba */
1449
1450 /* ftdi_set_termios will send usb control messages */
57845bd1 1451 if (port->tty)
669a6db1 1452 ftdi_set_termios(port, port->tty->termios);
1da177e4
LT		 1453
1454 /* FIXME: Flow control might be enabled, so it should be checked -
1455 we have no control of defaults! */
1456 /* Turn on RTS and DTR since we are not flow controlling by default */
74ede0ff 1457 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 1458
1459 /* Not throttled */
1460 spin_lock_irqsave(&priv->rx_lock, flags);
1461 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1462 spin_unlock_irqrestore(&priv->rx_lock, flags);
1463
1464 /* Start reading from the device */
76854cea 1465 priv->rx_processed = 0;
1da177e4
LT		 1466 usb_fill_bulk_urb(port->read_urb, dev,
1467 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1468 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1469 ftdi_read_bulk_callback, port);
1470 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1471 if (result)
441b62c1 1472 err("%s - failed submitting read urb, error %d", __func__, result);
1da177e4
LT		 1473
1474
1475 return result;
1476} /* ftdi_open */
1477
1478
1479
5c09d144 1480/*
1da177e4
LT		 1481 * usbserial:__serial_close only calls ftdi_close if the point is open
1482 *
1483 * This only gets called when it is the last close
5c09d144
DB		 1484 *
1485 *
1da177e4
LT		 1486 */
1487
1488static void ftdi_close (struct usb_serial_port *port, struct file *filp)
1489{ /* ftdi_close */
1490 unsigned int c_cflag = port->tty->termios->c_cflag;
1491 struct ftdi_private *priv = usb_get_serial_port_data(port);
1492 char buf[1];
1493
441b62c1 1494 dbg("%s", __func__);
1da177e4 1495
95bef012
ON		 1496 mutex_lock(&port->serial->disc_mutex);
1497 if (c_cflag & HUPCL && !port->serial->disconnected){
1da177e4 1498 /* Disable flow control */
5c09d144 1499 if (usb_control_msg(port->serial->dev,
1da177e4
LT		 1500 usb_sndctrlpipe(port->serial->dev, 0),
1501 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1502 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1503 0, priv->interface, buf, 0,
1504 WDR_TIMEOUT) < 0) {
1505 err("error from flowcontrol urb");
5c09d144 1506 }
1da177e4 1507
74ede0ff
IA		 1508 /* drop RTS and DTR */
1509 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4 1510 } /* Note change no line if hupcl is off */
95bef012 1511 mutex_unlock(&port->serial->disc_mutex);
76854cea
IA		 1512
1513 /* cancel any scheduled reading */
1514 cancel_delayed_work(&priv->rx_work);
1515 flush_scheduled_work();
5c09d144 1516
1da177e4 1517 /* shutdown our bulk read */
794c944e 1518 usb_kill_urb(port->read_urb);
1da177e4
LT		 1519} /* ftdi_close */
1520
1521
5c09d144 1522
1da177e4
LT		 1523/* The SIO requires the first byte to have:
1524 * B0 1
1525 * B1 0
1526 * B2..7 length of message excluding byte 0
1527 *
1528 * The new devices do not require this byte
1529 */
1530static int ftdi_write (struct usb_serial_port *port,
1531 const unsigned char *buf, int count)
1532{ /* ftdi_write */
1533 struct ftdi_private *priv = usb_get_serial_port_data(port);
1534 struct urb *urb;
1535 unsigned char *buffer;
1536 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1537 int status;
1538 int transfer_size;
22465400 1539 unsigned long flags;
1da177e4 1540
441b62c1 1541 dbg("%s port %d, %d bytes", __func__, port->number, count);
1da177e4
LT		 1542
1543 if (count == 0) {
1544 dbg("write request of 0 bytes");
1545 return 0;
1546 }
22465400
IA		 1547 spin_lock_irqsave(&priv->tx_lock, flags);
1548 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1549 spin_unlock_irqrestore(&priv->tx_lock, flags);
441b62c1 1550 dbg("%s - write limit hit\n", __func__);
22465400
IA		 1551 return 0;
1552 }
62127a58 1553 priv->tx_outstanding_urbs++;
22465400 1554 spin_unlock_irqrestore(&priv->tx_lock, flags);
5c09d144 1555
1da177e4
LT		 1556 data_offset = priv->write_offset;
1557 dbg("data_offset set to %d",data_offset);
1558
1559 /* Determine total transfer size */
1560 transfer_size = count;
1561 if (data_offset > 0) {
1562 /* Original sio needs control bytes too... */
1563 transfer_size += (data_offset *
1564 ((count + (PKTSZ - 1 - data_offset)) /
1565 (PKTSZ - data_offset)));
1566 }
1567
1568 buffer = kmalloc (transfer_size, GFP_ATOMIC);
1569 if (!buffer) {
441b62c1 1570 err("%s ran out of kernel memory for urb ...", __func__);
62127a58
ON		 1571 count = -ENOMEM;
1572 goto error_no_buffer;
1da177e4
LT		 1573 }
1574
1575 urb = usb_alloc_urb(0, GFP_ATOMIC);
1576 if (!urb) {
441b62c1 1577 err("%s - no more free urbs", __func__);
62127a58
ON		 1578 count = -ENOMEM;
1579 goto error_no_urb;
1da177e4
LT		 1580 }
1581
1582 /* Copy data */
1583 if (data_offset > 0) {
1584 /* Original sio requires control byte at start of each packet. */
1585 int user_pktsz = PKTSZ - data_offset;
1586 int todo = count;
1587 unsigned char *first_byte = buffer;
1588 const unsigned char *current_position = buf;
1589
1590 while (todo > 0) {
1591 if (user_pktsz > todo) {
1592 user_pktsz = todo;
1593 }
1594 /* Write the control byte at the front of the packet*/
5c09d144 1595 *first_byte = 1 | ((user_pktsz) << 2);
1da177e4
LT		 1596 /* Copy data for packet */
1597 memcpy (first_byte + data_offset,
1598 current_position, user_pktsz);
1599 first_byte += user_pktsz + data_offset;
1600 current_position += user_pktsz;
1601 todo -= user_pktsz;
1602 }
1603 } else {
1604 /* No control byte required. */
1605 /* Copy in the data to send */
1606 memcpy (buffer, buf, count);
1607 }
1608
441b62c1 1609 usb_serial_debug_data(debug, &port->dev, __func__, transfer_size, buffer);
1da177e4
LT		 1610
1611 /* fill the buffer and send it */
5c09d144 1612 usb_fill_bulk_urb(urb, port->serial->dev,
1da177e4
LT		 1613 usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress),
1614 buffer, transfer_size,
1615 ftdi_write_bulk_callback, port);
1616
1617 status = usb_submit_urb(urb, GFP_ATOMIC);
1618 if (status) {
441b62c1 1619 err("%s - failed submitting write urb, error %d", __func__, status);
1da177e4 1620 count = status;
62127a58 1621 goto error;
22465400
IA		 1622 } else {
1623 spin_lock_irqsave(&priv->tx_lock, flags);
22465400
IA		 1624 priv->tx_outstanding_bytes += count;
1625 priv->tx_bytes += count;
1626 spin_unlock_irqrestore(&priv->tx_lock, flags);
1da177e4
LT		 1627 }
1628
1629 /* we are done with this urb, so let the host driver
1630 * really free it when it is finished with it */
62127a58 1631 usb_free_urb(urb);
1da177e4 1632
441b62c1 1633 dbg("%s write returning: %d", __func__, count);
1da177e4 1634 return count;
62127a58
ON		 1635error:
1636 usb_free_urb(urb);
1637error_no_urb:
1638 kfree (buffer);
1639error_no_buffer:
1640 spin_lock_irqsave(&priv->tx_lock, flags);
1641 priv->tx_outstanding_urbs--;
1642 spin_unlock_irqrestore(&priv->tx_lock, flags);
1643 return count;
1da177e4
LT		 1644} /* ftdi_write */
1645
1646
1647/* This function may get called when the device is closed */
1648
7d12e780 1649static void ftdi_write_bulk_callback (struct urb *urb)
1da177e4 1650{
22465400 1651 unsigned long flags;
cdc97792 1652 struct usb_serial_port *port = urb->context;
22465400
IA		 1653 struct ftdi_private *priv;
1654 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1655 unsigned long countback;
0fb0aa18 1656 int status = urb->status;
1da177e4
LT		 1657
1658 /* free up the transfer buffer, as usb_free_urb() does not do this */
1659 kfree (urb->transfer_buffer);
1660
441b62c1 1661 dbg("%s - port %d", __func__, port->number);
5c09d144 1662
0fb0aa18
GKH		 1663 if (status) {
1664 dbg("nonzero write bulk status received: %d", status);
1da177e4
LT		 1665 return;
1666 }
1667
22465400
IA		 1668 priv = usb_get_serial_port_data(port);
1669 if (!priv) {
441b62c1 1670 dbg("%s - bad port private data pointer - exiting", __func__);
22465400
IA		 1671 return;
1672 }
1673 /* account for transferred data */
1674 countback = urb->actual_length;
1675 data_offset = priv->write_offset;
1676 if (data_offset > 0) {
1677 /* Subtract the control bytes */
dfa5ec79 1678 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
22465400
IA		 1679 }
1680 spin_lock_irqsave(&priv->tx_lock, flags);
1681 --priv->tx_outstanding_urbs;
1682 priv->tx_outstanding_bytes -= countback;
1683 spin_unlock_irqrestore(&priv->tx_lock, flags);
1684
cf2c7481 1685 usb_serial_port_softint(port);
1da177e4
LT		 1686} /* ftdi_write_bulk_callback */
1687
1688
1689static int ftdi_write_room( struct usb_serial_port *port )
1690{
22465400
IA		 1691 struct ftdi_private *priv = usb_get_serial_port_data(port);
1692 int room;
1693 unsigned long flags;
1694
441b62c1 1695 dbg("%s - port %d", __func__, port->number);
1da177e4 1696
22465400
IA		 1697 spin_lock_irqsave(&priv->tx_lock, flags);
1698 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1699 /*
1700 * We really can take anything the user throws at us
1701 * but let's pick a nice big number to tell the tty
1702 * layer that we have lots of free space
1703 */
1704 room = 2048;
1705 } else {
1706 room = 0;
1707 }
1708 spin_unlock_irqrestore(&priv->tx_lock, flags);
1709 return room;
1da177e4
LT		 1710} /* ftdi_write_room */
1711
1712
1713static int ftdi_chars_in_buffer (struct usb_serial_port *port)
1714{ /* ftdi_chars_in_buffer */
22465400
IA		 1715 struct ftdi_private *priv = usb_get_serial_port_data(port);
1716 int buffered;
1717 unsigned long flags;
1718
441b62c1 1719 dbg("%s - port %d", __func__, port->number);
1da177e4 1720
22465400
IA		 1721 spin_lock_irqsave(&priv->tx_lock, flags);
1722 buffered = (int)priv->tx_outstanding_bytes;
1723 spin_unlock_irqrestore(&priv->tx_lock, flags);
1724 if (buffered < 0) {
441b62c1 1725 err("%s outstanding tx bytes is negative!", __func__);
22465400
IA		 1726 buffered = 0;
1727 }
1728 return buffered;
1da177e4
LT		 1729} /* ftdi_chars_in_buffer */
1730
1731
1732
7d12e780 1733static void ftdi_read_bulk_callback (struct urb *urb)
1da177e4 1734{ /* ftdi_read_bulk_callback */
cdc97792 1735 struct usb_serial_port *port = urb->context;
1da177e4
LT		 1736 struct tty_struct *tty;
1737 struct ftdi_private *priv;
22465400
IA		 1738 unsigned long countread;
1739 unsigned long flags;
0fb0aa18 1740 int status = urb->status;
1da177e4
LT		 1741
1742 if (urb->number_of_packets > 0) {
441b62c1 1743 err("%s transfer_buffer_length %d actual_length %d number of packets %d",__func__,
1da177e4 1744 urb->transfer_buffer_length, urb->actual_length, urb->number_of_packets );
441b62c1 1745 err("%s transfer_flags %x ", __func__,urb->transfer_flags );
1da177e4
LT		 1746 }
1747
441b62c1 1748 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 1749
1750 if (port->open_count <= 0)
1751 return;
1752
1753 tty = port->tty;
1754 if (!tty) {
441b62c1 1755 dbg("%s - bad tty pointer - exiting",__func__);
1da177e4
LT		 1756 return;
1757 }
1758
1759 priv = usb_get_serial_port_data(port);
1760 if (!priv) {
441b62c1 1761 dbg("%s - bad port private data pointer - exiting", __func__);
1da177e4
LT		 1762 return;
1763 }
1764
1765 if (urb != port->read_urb) {
441b62c1 1766 err("%s - Not my urb!", __func__);
1da177e4
LT		 1767 }
1768
0fb0aa18 1769 if (status) {
1da177e4 1770 /* This will happen at close every time so it is a dbg not an err */
0fb0aa18
GKH		 1771 dbg("(this is ok on close) nonzero read bulk status received: "
1772 "%d", status);
1da177e4
LT		 1773 return;
1774 }
1775
22465400
IA		 1776 /* count data bytes, but not status bytes */
1777 countread = urb->actual_length;
dfa5ec79 1778 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
22465400
IA		 1779 spin_lock_irqsave(&priv->rx_lock, flags);
1780 priv->rx_bytes += countread;
1781 spin_unlock_irqrestore(&priv->rx_lock, flags);
1782
c4028958 1783 ftdi_process_read(&priv->rx_work.work);
1da177e4
LT		 1784
1785} /* ftdi_read_bulk_callback */
1786
1787
c4028958 1788static void ftdi_process_read (struct work_struct *work)
1da177e4 1789{ /* ftdi_process_read */
c4028958
DH		 1790 struct ftdi_private *priv =
1791 container_of(work, struct ftdi_private, rx_work.work);
1792 struct usb_serial_port *port = priv->port;
1da177e4
LT		 1793 struct urb *urb;
1794 struct tty_struct *tty;
1da177e4 1795 char error_flag;
5c09d144 1796 unsigned char *data;
1da177e4
LT		 1797
1798 int i;
1799 int result;
1800 int need_flip;
1801 int packet_offset;
76854cea 1802 unsigned long flags;
1da177e4 1803
441b62c1 1804 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 1805
1806 if (port->open_count <= 0)
1807 return;
1808
1809 tty = port->tty;
1810 if (!tty) {
441b62c1 1811 dbg("%s - bad tty pointer - exiting",__func__);
1da177e4
LT		 1812 return;
1813 }
1814
1815 priv = usb_get_serial_port_data(port);
1816 if (!priv) {
441b62c1 1817 dbg("%s - bad port private data pointer - exiting", __func__);
1da177e4
LT		 1818 return;
1819 }
1820
1821 urb = port->read_urb;
1822 if (!urb) {
441b62c1 1823 dbg("%s - bad read_urb pointer - exiting", __func__);
1da177e4
LT		 1824 return;
1825 }
1826
1827 data = urb->transfer_buffer;
1828
76854cea 1829 if (priv->rx_processed) {
441b62c1 1830 dbg("%s - already processed: %d bytes, %d remain", __func__,
76854cea
IA		 1831 priv->rx_processed,
1832 urb->actual_length - priv->rx_processed);
1da177e4 1833 } else {
76854cea
IA		 1834 /* The first two bytes of every read packet are status */
1835 if (urb->actual_length > 2) {
441b62c1 1836 usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
76854cea
IA		 1837 } else {
1838 dbg("Status only: %03oo %03oo",data[0],data[1]);
1839 }
1840 }
1da177e4
LT		 1841
1842
1843 /* TO DO -- check for hung up line and handle appropriately: */
1844 /* send hangup */
1845 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1846 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1847
1848 need_flip = 0;
76854cea
IA		 1849 for (packet_offset = priv->rx_processed; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1850 int length;
1851
1da177e4 1852 /* Compare new line status to the old one, signal if different */
76854cea
IA		 1853 /* N.B. packet may be processed more than once, but differences
1854 * are only processed once. */
1da177e4
LT		 1855 if (priv != NULL) {
1856 char new_status = data[packet_offset+0] & FTDI_STATUS_B0_MASK;
1857 if (new_status != priv->prev_status) {
1858 priv->diff_status |= new_status ^ priv->prev_status;
1859 wake_up_interruptible(&priv->delta_msr_wait);
1860 priv->prev_status = new_status;
1861 }
1862 }
1863
76854cea
IA		 1864 length = min(PKTSZ, urb->actual_length-packet_offset)-2;
1865 if (length < 0) {
441b62c1 1866 err("%s - bad packet length: %d", __func__, length+2);
76854cea
IA		 1867 length = 0;
1868 }
1869
76854cea 1870 if (priv->rx_flags & THROTTLED) {
441b62c1 1871 dbg("%s - throttled", __func__);
76854cea
IA		 1872 break;
1873 }
33f0f88f 1874 if (tty_buffer_request_room(tty, length) < length) {
76854cea 1875 /* break out & wait for throttling/unthrottling to happen */
441b62c1 1876 dbg("%s - receive room low", __func__);
76854cea
IA		 1877 break;
1878 }
1879
1da177e4
LT		 1880 /* Handle errors and break */
1881 error_flag = TTY_NORMAL;
1882 /* Although the device uses a bitmask and hence can have multiple */
1883 /* errors on a packet - the order here sets the priority the */
1884 /* error is returned to the tty layer */
1885
1886 if ( data[packet_offset+1] & FTDI_RS_OE ) {
1887 error_flag = TTY_OVERRUN;
1888 dbg("OVERRRUN error");
1889 }
1890 if ( data[packet_offset+1] & FTDI_RS_BI ) {
1891 error_flag = TTY_BREAK;
1892 dbg("BREAK received");
1893 }
1894 if ( data[packet_offset+1] & FTDI_RS_PE ) {
1895 error_flag = TTY_PARITY;
1896 dbg("PARITY error");
1897 }
1898 if ( data[packet_offset+1] & FTDI_RS_FE ) {
1899 error_flag = TTY_FRAME;
1900 dbg("FRAMING error");
1901 }
76854cea
IA		 1902 if (length > 0) {
1903 for (i = 2; i < length+2; i++) {
5c09d144 1904 /* Note that the error flag is duplicated for
1da177e4
LT		 1905 every character received since we don't know
1906 which character it applied to */
1907 tty_insert_flip_char(tty, data[packet_offset+i], error_flag);
1908 }
1909 need_flip = 1;
1910 }
1911
1912#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1913 /* if a parity error is detected you get status packets forever
1914 until a character is sent without a parity error.
1915 This doesn't work well since the application receives a never
1916 ending stream of bad data - even though new data hasn't been sent.
1917 Therefore I (bill) have taken this out.
5c09d144 1918 However - this might make sense for framing errors and so on
1da177e4
LT		 1919 so I am leaving the code in for now.
1920 */
1921 else {
1922 if (error_flag != TTY_NORMAL){
1923 dbg("error_flag is not normal");
1924 /* In this case it is just status - if that is an error send a bad character */
1925 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1926 tty_flip_buffer_push(tty);
1927 }
1928 tty_insert_flip_char(tty, 0xff, error_flag);
1929 need_flip = 1;
1930 }
1931 }
1932#endif
1933 } /* "for(packet_offset=0..." */
1934
1935 /* Low latency */
1936 if (need_flip) {
1937 tty_flip_buffer_push(tty);
1938 }
1939
76854cea
IA		 1940 if (packet_offset < urb->actual_length) {
1941 /* not completely processed - record progress */
1942 priv->rx_processed = packet_offset;
1943 dbg("%s - incomplete, %d bytes processed, %d remain",
441b62c1 1944 __func__, packet_offset,
76854cea
IA		 1945 urb->actual_length - packet_offset);
1946 /* check if we were throttled while processing */
1947 spin_lock_irqsave(&priv->rx_lock, flags);
1948 if (priv->rx_flags & THROTTLED) {
1949 priv->rx_flags |= ACTUALLY_THROTTLED;
1950 spin_unlock_irqrestore(&priv->rx_lock, flags);
1951 dbg("%s - deferring remainder until unthrottled",
441b62c1 1952 __func__);
76854cea
IA		 1953 return;
1954 }
1955 spin_unlock_irqrestore(&priv->rx_lock, flags);
1956 /* if the port is closed stop trying to read */
1957 if (port->open_count > 0){
1958 /* delay processing of remainder */
1959 schedule_delayed_work(&priv->rx_work, 1);
1960 } else {
441b62c1 1961 dbg("%s - port is closed", __func__);
76854cea
IA		 1962 }
1963 return;
1964 }
1965
1966 /* urb is completely processed */
1967 priv->rx_processed = 0;
1968
1da177e4
LT		 1969 /* if the port is closed stop trying to read */
1970 if (port->open_count > 0){
1971 /* Continue trying to always read */
5c09d144 1972 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
1da177e4
LT		 1973 usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress),
1974 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1975 ftdi_read_bulk_callback, port);
1976
1977 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
1978 if (result)
441b62c1 1979 err("%s - failed resubmitting read urb, error %d", __func__, result);
1da177e4
LT		 1980 }
1981
1982 return;
1983} /* ftdi_process_read */
1984
1985
1986static void ftdi_break_ctl( struct usb_serial_port *port, int break_state )
1987{
1988 struct ftdi_private *priv = usb_get_serial_port_data(port);
5c09d144 1989 __u16 urb_value = 0;
1da177e4 1990 char buf[1];
5c09d144 1991
1da177e4
LT		 1992 /* break_state = -1 to turn on break, and 0 to turn off break */
1993 /* see drivers/char/tty_io.c to see it used */
1994 /* last_set_data_urb_value NEVER has the break bit set in it */
1995
1996 if (break_state) {
1997 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
1998 } else {
5c09d144 1999 urb_value = priv->last_set_data_urb_value;
1da177e4
LT		 2000 }
2001
5c09d144 2002
1da177e4 2003 if (usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
5c09d144 2004 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2005 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2006 urb_value , priv->interface,
2007 buf, 0, WDR_TIMEOUT) < 0) {
441b62c1 2008 err("%s FAILED to enable/disable break state (state was %d)", __func__,break_state);
5c09d144 2009 }
1da177e4 2010
441b62c1 2011 dbg("%s break state is %d - urb is %d", __func__,break_state, urb_value);
5c09d144 2012
1da177e4
LT		 2013}
2014
2015
2016/* old_termios contains the original termios settings and tty->termios contains
2017 * the new setting to be used
2018 * WARNING: set_termios calls this with old_termios in kernel space
2019 */
2020
606d099c 2021static void ftdi_set_termios (struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2022{ /* ftdi_termios */
2023 struct usb_device *dev = port->serial->dev;
1da177e4 2024 struct ftdi_private *priv = usb_get_serial_port_data(port);
669a6db1
AC		 2025 struct ktermios *termios = port->tty->termios;
2026 unsigned int cflag = termios->c_cflag;
1da177e4
LT		 2027 __u16 urb_value; /* will hold the new flags */
2028 char buf[1]; /* Perhaps I should dynamically alloc this? */
5c09d144 2029
1da177e4 2030 // Added for xon/xoff support
669a6db1 2031 unsigned int iflag = termios->c_iflag;
1da177e4
LT		 2032 unsigned char vstop;
2033 unsigned char vstart;
5c09d144 2034
441b62c1 2035 dbg("%s", __func__);
1da177e4
LT		 2036
2037 /* Force baud rate if this device requires it, unless it is set to B0. */
669a6db1 2038 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
441b62c1 2039 dbg("%s: forcing baud rate for this device", __func__);
bd5e47cc
AM		 2040 tty_encode_baud_rate(port->tty, priv->force_baud,
2041 priv->force_baud);
1da177e4
LT		 2042 }
2043
2044 /* Force RTS-CTS if this device requires it. */
2045 if (priv->force_rtscts) {
441b62c1 2046 dbg("%s: forcing rtscts for this device", __func__);
669a6db1 2047 termios->c_cflag |= CRTSCTS;
1da177e4
LT		 2048 }
2049
669a6db1 2050 cflag = termios->c_cflag;
1da177e4 2051
5c09d144
DB		 2052 /* FIXME -For this cut I don't care if the line is really changing or
2053 not - so just do the change regardless - should be able to
1da177e4 2054 compare old_termios and tty->termios */
5c09d144
DB		 2055 /* NOTE These routines can get interrupted by
2056 ftdi_sio_read_bulk_callback - need to examine what this
1da177e4 2057 means - don't see any problems yet */
5c09d144 2058
1da177e4 2059 /* Set number of data bits, parity, stop bits */
5c09d144 2060
669a6db1
AC		 2061 termios->c_cflag &= ~CMSPAR;
2062
1da177e4
LT		 2063 urb_value = 0;
2064 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2065 FTDI_SIO_SET_DATA_STOP_BITS_1);
5c09d144
DB		 2066 urb_value |= (cflag & PARENB ?
2067 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1da177e4
LT		 2068 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2069 FTDI_SIO_SET_DATA_PARITY_NONE);
2070 if (cflag & CSIZE) {
2071 switch (cflag & CSIZE) {
2072 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2073 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2074 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2075 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2076 default:
2077 err("CSIZE was set but not CS5-CS8");
2078 }
2079 }
2080
2081 /* This is needed by the break command since it uses the same command - but is
2082 * or'ed with this value */
2083 priv->last_set_data_urb_value = urb_value;
5c09d144 2084
1da177e4 2085 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2086 FTDI_SIO_SET_DATA_REQUEST,
1da177e4
LT		 2087 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2088 urb_value , priv->interface,
279e1545 2089 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
441b62c1 2090 err("%s FAILED to set databits/stopbits/parity", __func__);
5c09d144 2091 }
1da177e4
LT		 2092
2093 /* Now do the baudrate */
2094 if ((cflag & CBAUD) == B0 ) {
2095 /* Disable flow control */
2096 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
5c09d144 2097 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2098 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2099 0, priv->interface,
1da177e4 2100 buf, 0, WDR_TIMEOUT) < 0) {
441b62c1 2101 err("%s error from disable flowcontrol urb", __func__);
5c09d144 2102 }
1da177e4 2103 /* Drop RTS and DTR */
74ede0ff 2104 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4
LT		 2105 } else {
2106 /* set the baudrate determined before */
2107 if (change_speed(port)) {
441b62c1 2108 err("%s urb failed to set baudrate", __func__);
72a755fc
PF		 2109 }
2110 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
57845bd1 2111 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) {
72a755fc 2112 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1da177e4 2113 }
1da177e4
LT		 2114 }
2115
2116 /* Set flow control */
2117 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2118 if (cflag & CRTSCTS) {
441b62c1 2119 dbg("%s Setting to CRTSCTS flow control", __func__);
5c09d144 2120 if (usb_control_msg(dev,
1da177e4 2121 usb_sndctrlpipe(dev, 0),
5c09d144 2122 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4
LT		 2123 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2124 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2125 buf, 0, WDR_TIMEOUT) < 0) {
2126 err("urb failed to set to rts/cts flow control");
5c09d144
DB		 2127 }
2128
2129 } else {
1da177e4
LT		 2130 /*
2131 * Xon/Xoff code
2132 *
2133 * Check the IXOFF status in the iflag component of the termios structure
2134 * if IXOFF is not set, the pre-xon/xoff code is executed.
2135 */
2136 if (iflag & IXOFF) {
441b62c1 2137 dbg("%s request to enable xonxoff iflag=%04x",__func__,iflag);
1da177e4
LT		 2138 // Try to enable the XON/XOFF on the ftdi_sio
2139 // Set the vstart and vstop -- could have been done up above where
2140 // a lot of other dereferencing is done but that would be very
2141 // inefficient as vstart and vstop are not always needed
669a6db1
AC		 2142 vstart = termios->c_cc[VSTART];
2143 vstop = termios->c_cc[VSTOP];
1da177e4
LT		 2144 urb_value=(vstop << 8) | (vstart);
2145
2146 if (usb_control_msg(dev,
2147 usb_sndctrlpipe(dev, 0),
2148 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2149 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2150 urb_value , (FTDI_SIO_XON_XOFF_HS
2151 | priv->interface),
2152 buf, 0, WDR_TIMEOUT) < 0) {
2153 err("urb failed to set to xon/xoff flow control");
2154 }
2155 } else {
2156 /* else clause to only run if cfag ! CRTSCTS and iflag ! XOFF */
2157 /* CHECKME Assuming XON/XOFF handled by tty stack - not by device */
441b62c1 2158 dbg("%s Turning off hardware flow control", __func__);
5c09d144 2159 if (usb_control_msg(dev,
1da177e4 2160 usb_sndctrlpipe(dev, 0),
5c09d144 2161 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1da177e4 2162 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
5c09d144 2163 0, priv->interface,
1da177e4
LT		 2164 buf, 0, WDR_TIMEOUT) < 0) {
2165 err("urb failed to clear flow control");
5c09d144 2166 }
1da177e4 2167 }
5c09d144 2168
1da177e4
LT		 2169 }
2170 return;
2171} /* ftdi_termios */
2172
2173
2174static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file)
2175{
2176 struct ftdi_private *priv = usb_get_serial_port_data(port);
2177 unsigned char buf[2];
2178 int ret;
2179
441b62c1 2180 dbg("%s TIOCMGET", __func__);
1da177e4
LT		 2181 switch (priv->chip_type) {
2182 case SIO:
2183 /* Request the status from the device */
5c09d144 2184 if ((ret = usb_control_msg(port->serial->dev,
1da177e4 2185 usb_rcvctrlpipe(port->serial->dev, 0),
5c09d144 2186 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
1da177e4 2187 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
5c09d144 2188 0, 0,
1da177e4 2189 buf, 1, WDR_TIMEOUT)) < 0 ) {
441b62c1 2190 err("%s Could not get modem status of device - err: %d", __func__,
1da177e4
LT		 2191 ret);
2192 return(ret);
2193 }
2194 break;
2195 case FT8U232AM:
2196 case FT232BM:
2197 case FT2232C:
ed6e5282 2198 case FT232RL:
1da177e4
LT		 2199 /* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same
2200 format as the data returned from the in point */
5c09d144 2201 if ((ret = usb_control_msg(port->serial->dev,
1da177e4 2202 usb_rcvctrlpipe(port->serial->dev, 0),
5c09d144 2203 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
1da177e4 2204 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
5c09d144 2205 0, priv->interface,
1da177e4 2206 buf, 2, WDR_TIMEOUT)) < 0 ) {
441b62c1 2207 err("%s Could not get modem status of device - err: %d", __func__,
1da177e4
LT		 2208 ret);
2209 return(ret);
2210 }
2211 break;
2212 default:
2213 return -EFAULT;
2214 break;
2215 }
5c09d144 2216
1da177e4
LT		 2217 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2218 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2219 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2220 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
5c09d144 2221 priv->last_dtr_rts;
1da177e4
LT		 2222}
2223
2224static int ftdi_tiocmset(struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear)
2225{
441b62c1 2226 dbg("%s TIOCMSET", __func__);
74ede0ff 2227 return update_mctrl(port, set, clear);
1da177e4
LT		 2228}
2229
2230
2231static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
2232{
2233 struct ftdi_private *priv = usb_get_serial_port_data(port);
2234
441b62c1 2235 dbg("%s cmd 0x%04x", __func__, cmd);
1da177e4
LT		 2236
2237 /* Based on code from acm.c and others */
2238 switch (cmd) {
2239
1da177e4
LT		 2240 case TIOCGSERIAL: /* gets serial port data */
2241 return get_serial_info(port, (struct serial_struct __user *) arg);
2242
2243 case TIOCSSERIAL: /* sets serial port data */
2244 return set_serial_info(port, (struct serial_struct __user *) arg);
2245
2246 /*
2247 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2248 * - mask passed in arg for lines of interest
2249 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2250 * Caller should use TIOCGICOUNT to see which one it was.
2251 *
2252 * This code is borrowed from linux/drivers/char/serial.c
2253 */
2254 case TIOCMIWAIT:
2255 while (priv != NULL) {
2256 interruptible_sleep_on(&priv->delta_msr_wait);
2257 /* see if a signal did it */
2258 if (signal_pending(current))
2259 return -ERESTARTSYS;
2260 else {
2261 char diff = priv->diff_status;
2262
2263 if (diff == 0) {
2264 return -EIO; /* no change => error */
2265 }
2266
2267 /* Consume all events */
2268 priv->diff_status = 0;
2269
2270 /* Return 0 if caller wanted to know about these bits */
2271 if ( ((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2272 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2273 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2274 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS)) ) {
2275 return 0;
2276 }
2277 /*
2278 * Otherwise caller can't care less about what happened,
2279 * and so we continue to wait for more events.
2280 */
2281 }
2282 }
2283 return(0);
2284 break;
2285 default:
2286 break;
5c09d144 2287
1da177e4
LT		 2288 }
2289
2290
5c09d144 2291 /* This is not necessarily an error - turns out the higher layers will do
1da177e4
LT		 2292 * some ioctls itself (see comment above)
2293 */
441b62c1 2294 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
1da177e4
LT		 2295
2296 return(-ENOIOCTLCMD);
2297} /* ftdi_ioctl */
2298
2299
2300static void ftdi_throttle (struct usb_serial_port *port)
2301{
2302 struct ftdi_private *priv = usb_get_serial_port_data(port);
2303 unsigned long flags;
2304
441b62c1 2305 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2306
2307 spin_lock_irqsave(&priv->rx_lock, flags);
2308 priv->rx_flags |= THROTTLED;
2309 spin_unlock_irqrestore(&priv->rx_lock, flags);
2310}
2311
2312
2313static void ftdi_unthrottle (struct usb_serial_port *port)
2314{
2315 struct ftdi_private *priv = usb_get_serial_port_data(port);
2316 int actually_throttled;
2317 unsigned long flags;
2318
441b62c1 2319 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 2320
2321 spin_lock_irqsave(&priv->rx_lock, flags);
2322 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2323 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2324 spin_unlock_irqrestore(&priv->rx_lock, flags);
2325
2326 if (actually_throttled)
c4028958 2327 schedule_delayed_work(&priv->rx_work, 0);
1da177e4
LT		 2328}
2329
2330static int __init ftdi_init (void)
2331{
2332 int retval;
2333
441b62c1 2334 dbg("%s", __func__);
fdcb0a0f
IA		 2335 if (vendor > 0 && product > 0) {
2336 /* Add user specified VID/PID to reserved element of table. */
2337 int i;
2338 for (i = 0; id_table_combined[i].idVendor; i++)
2339 ;
2340 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2341 id_table_combined[i].idVendor = vendor;
2342 id_table_combined[i].idProduct = product;
2343 }
8f977e42 2344 retval = usb_serial_register(&ftdi_sio_device);
1da177e4 2345 if (retval)
8f977e42 2346 goto failed_sio_register;
1da177e4 2347 retval = usb_register(&ftdi_driver);
5c09d144 2348 if (retval)
1da177e4
LT		 2349 goto failed_usb_register;
2350
2351 info(DRIVER_VERSION ":" DRIVER_DESC);
2352 return 0;
2353failed_usb_register:
8f977e42
IA		 2354 usb_serial_deregister(&ftdi_sio_device);
2355failed_sio_register:
1da177e4
LT		 2356 return retval;
2357}
2358
2359
2360static void __exit ftdi_exit (void)
2361{
2362
441b62c1 2363 dbg("%s", __func__);
1da177e4
LT		 2364
2365 usb_deregister (&ftdi_driver);
8f977e42 2366 usb_serial_deregister (&ftdi_sio_device);
1da177e4
LT		 2367
2368}
2369
2370
2371module_init(ftdi_init);
2372module_exit(ftdi_exit);
2373
2374MODULE_AUTHOR( DRIVER_AUTHOR );
2375MODULE_DESCRIPTION( DRIVER_DESC );
2376MODULE_LICENSE("GPL");
2377
2378module_param(debug, bool, S_IRUGO | S_IWUSR);
2379MODULE_PARM_DESC(debug, "Debug enabled or not");
fdcb0a0f
IA		 2380module_param(vendor, ushort, 0);
2381MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2382 __MODULE_STRING(FTDI_VID)")");
2383module_param(product, ushort, 0);
2384MODULE_PARM_DESC(vendor, "User specified product ID");
1da177e4 2385
ubuntu-zesty-kernel mirror