Fix incorrect use of loose in tty/serial drivers
[linux-2.6/zen-sources.git] / drivers / usb / serial / ftdi_sio.c
blobaad1359a3eb18719c30dff180f70482b131ae886
1 /*
2 * USB FTDI SIO driver
4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
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.
15 * See Documentation/usb/usb-serial.txt for more information on using this
16 * driver
18 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
19 * and extra documentation
21 * Change entries from 2004 and earlier can be found in versions of this
22 * file in kernel versions prior to the 2.6.24 release.
26 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
27 /* Thanx to FTDI for so kindly providing details of the protocol required */
28 /* to talk to the device */
29 /* Thanx to gkh and the rest of the usb dev group for all code I have
30 assimilated :-) */
32 #include <linux/kernel.h>
33 #include <linux/errno.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
36 #include <linux/tty.h>
37 #include <linux/tty_driver.h>
38 #include <linux/tty_flip.h>
39 #include <linux/module.h>
40 #include <linux/spinlock.h>
41 #include <linux/uaccess.h>
42 #include <linux/usb.h>
43 #include <linux/serial.h>
44 #include <linux/usb/serial.h>
45 #include "ftdi_sio.h"
48 * Version Information
50 #define DRIVER_VERSION "v1.4.3"
51 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
52 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
54 static int debug;
55 static __u16 vendor = FTDI_VID;
56 static __u16 product;
58 struct ftdi_private {
59 ftdi_chip_type_t chip_type;
60 /* type of device, either SIO or FT8U232AM */
61 int baud_base; /* baud base clock for divisor setting */
62 int custom_divisor; /* custom_divisor kludge, this is for
63 baud_base (different from what goes to the
64 chip!) */
65 __u16 last_set_data_urb_value ;
66 /* the last data state set - needed for doing
67 * a break
69 int write_offset; /* This is the offset in the usb data block to
70 * write the serial data - it varies between
71 * devices
73 int flags; /* some ASYNC_xxxx flags are supported */
74 unsigned long last_dtr_rts; /* saved modem control outputs */
75 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
76 char prev_status, diff_status; /* Used for TIOCMIWAIT */
77 __u8 rx_flags; /* receive state flags (throttling) */
78 spinlock_t rx_lock; /* spinlock for receive state */
79 struct delayed_work rx_work;
80 struct usb_serial_port *port;
81 int rx_processed;
82 unsigned long rx_bytes;
84 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
86 speed_t force_baud; /* if non-zero, force the baud rate to
87 this value */
88 int force_rtscts; /* if non-zero, force RTS-CTS to always
89 be enabled */
91 spinlock_t tx_lock; /* spinlock for transmit state */
92 unsigned long tx_bytes;
93 unsigned long tx_outstanding_bytes;
94 unsigned long tx_outstanding_urbs;
97 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
98 struct ftdi_sio_quirk {
99 int (*probe)(struct usb_serial *);
100 /* Special settings for probed ports. */
101 void (*port_probe)(struct ftdi_private *);
104 static int ftdi_jtag_probe(struct usb_serial *serial);
105 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
106 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
107 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
109 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
110 .probe = ftdi_jtag_probe,
113 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
114 .probe = ftdi_mtxorb_hack_setup,
117 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
118 .port_probe = ftdi_USB_UIRT_setup,
121 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
122 .port_probe = ftdi_HE_TIRA1_setup,
126 * The 8U232AM has the same API as the sio except for:
127 * - it can support MUCH higher baudrates; up to:
128 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
129 * o 230400 at 12MHz
130 * so .. 8U232AM's baudrate setting codes are different
131 * - it has a two byte status code.
132 * - it returns characters every 16ms (the FTDI does it every 40ms)
134 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
135 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
136 * combinations in both tables.
137 * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
138 * but I don't know if those ever went into mass production. [Ian Abbott]
143 static struct usb_device_id id_table_combined [] = {
144 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
145 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
146 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
147 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
148 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
149 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
150 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
151 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
152 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
153 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
154 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
155 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
156 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
157 { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
158 { USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
159 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
160 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
161 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
162 { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
163 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
164 { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
165 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
166 { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
167 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
168 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
169 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
170 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
171 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
172 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
173 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
174 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
175 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
176 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
177 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
178 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
179 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
180 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
181 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
182 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
183 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
184 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
185 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
186 { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
187 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
188 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
189 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
190 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
191 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
192 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
193 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
194 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
195 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
196 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
197 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
198 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
199 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
200 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
201 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
202 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
203 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
204 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
205 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
206 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
207 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
208 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
209 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
210 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
211 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
212 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
213 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
214 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
215 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
216 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
217 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
218 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
219 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
220 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
221 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
222 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
223 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
224 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
225 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
226 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
227 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
228 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
229 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
230 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
231 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
232 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
233 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
234 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
235 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
236 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
237 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
238 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
239 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
240 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
241 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
242 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
243 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
244 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
245 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
246 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
247 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
248 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
249 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
250 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
251 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
252 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
253 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
254 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
255 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
256 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
257 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
258 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
259 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
260 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
261 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
262 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
263 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
264 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
265 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
266 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
267 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
268 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
269 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
270 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
271 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
272 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
273 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
274 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
275 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
276 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
277 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
278 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
279 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
280 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
281 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
282 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
283 .driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
284 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
285 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
286 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
287 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
288 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
289 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
290 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
291 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
292 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
293 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
294 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
295 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
296 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
297 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
298 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
299 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
300 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
301 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
302 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
303 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
304 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
305 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
306 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
307 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
308 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
309 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
310 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
311 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
312 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
313 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
314 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
315 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
316 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
317 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
318 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
319 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
320 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
321 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
322 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
323 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
324 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
325 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
326 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
327 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
328 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
329 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
330 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
331 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
332 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
333 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
334 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
335 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
336 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
337 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
338 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
339 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
340 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
341 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
342 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
343 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
344 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
345 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
346 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
347 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
348 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
349 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
350 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
351 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
352 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
353 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
354 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
355 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
356 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
357 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
358 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
359 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
360 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
361 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
362 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
363 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
364 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
365 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
366 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
367 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
368 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
369 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
370 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
371 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
372 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
373 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
374 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
375 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
376 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
377 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
378 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
379 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
380 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
381 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
382 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
383 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
384 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
385 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
386 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
387 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
388 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
389 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
390 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
391 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
392 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
393 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
394 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
395 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
396 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
397 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
398 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
399 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
400 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
401 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
402 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
403 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
404 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
405 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
406 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
407 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
408 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
409 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
410 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
411 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
412 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
413 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
414 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
415 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
416 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
417 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
418 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
419 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
420 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
421 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
422 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
423 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
424 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
425 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
426 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
427 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
428 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
429 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
430 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
431 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
432 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
433 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
434 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
435 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
436 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
437 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
438 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
439 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
440 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
441 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
442 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
443 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
444 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
445 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
446 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
447 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
448 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
449 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
450 { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
451 { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
452 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
453 { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
454 { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
455 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
456 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
457 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
458 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
459 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
460 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
461 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
462 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
463 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
464 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
465 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
466 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
467 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
468 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
469 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
470 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
471 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
472 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
473 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
474 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
475 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
476 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
477 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
478 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
479 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
480 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
481 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
482 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
483 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
484 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
485 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
486 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
487 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
488 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
489 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
490 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
491 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
492 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
493 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
494 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
495 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
496 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
497 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
498 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
499 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
500 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
501 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
502 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
503 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
504 { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
505 .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
506 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
507 .driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
508 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
509 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
510 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
511 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
512 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
513 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
514 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
515 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
539 { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
541 { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
543 * Due to many user requests for multiple ELV devices we enable
544 * them by default.
546 { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
547 { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
548 { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
549 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
550 { USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
551 { USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
552 { USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
553 { USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
554 { USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
555 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
556 { USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
557 { USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
558 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
559 { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
560 { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
561 { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
562 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
563 { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
564 { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
565 { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
566 { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
567 { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
568 { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
569 { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
570 { USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
571 { USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
572 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
573 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
574 { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
575 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
576 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
577 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
578 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
579 { USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
580 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
581 { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
582 { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
583 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
584 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
585 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
586 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
587 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
588 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
589 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
590 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
591 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
592 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
593 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
594 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
595 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
596 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
597 { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
598 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
599 { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
600 { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
601 { USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
602 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
603 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
604 { USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
605 { USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
607 { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
609 { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
610 { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
611 { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
612 { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
614 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
615 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
616 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
617 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
618 { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
619 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
620 { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
621 { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
622 { USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
623 { USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
624 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
625 { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
626 { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
627 { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
628 { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
629 { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
630 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
631 { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
632 { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
633 { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
634 { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
635 { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
636 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
637 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
638 { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
639 { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
640 { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
641 { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
642 { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
643 { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
644 { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
645 { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
646 { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
647 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
648 { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
649 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
650 { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
651 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
652 { USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
653 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
654 { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
655 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
656 { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
657 { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
658 { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
659 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
660 { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
661 { }, /* Optional parameter entry */
662 { } /* Terminating entry */
665 MODULE_DEVICE_TABLE(usb, id_table_combined);
667 static struct usb_driver ftdi_driver = {
668 .name = "ftdi_sio",
669 .probe = usb_serial_probe,
670 .disconnect = usb_serial_disconnect,
671 .id_table = id_table_combined,
672 .no_dynamic_id = 1,
675 static const char *ftdi_chip_name[] = {
676 [SIO] = "SIO", /* the serial part of FT8U100AX */
677 [FT8U232AM] = "FT8U232AM",
678 [FT232BM] = "FT232BM",
679 [FT2232C] = "FT2232C",
680 [FT232RL] = "FT232RL",
684 /* Constants for read urb and write urb */
685 #define BUFSZ 512
686 #define PKTSZ 64
688 /* rx_flags */
689 #define THROTTLED 0x01
690 #define ACTUALLY_THROTTLED 0x02
692 /* Used for TIOCMIWAIT */
693 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
694 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
695 /* End TIOCMIWAIT */
697 #define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
698 | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
700 /* function prototypes for a FTDI serial converter */
701 static int ftdi_sio_probe(struct usb_serial *serial,
702 const struct usb_device_id *id);
703 static void ftdi_shutdown(struct usb_serial *serial);
704 static int ftdi_sio_port_probe(struct usb_serial_port *port);
705 static int ftdi_sio_port_remove(struct usb_serial_port *port);
706 static int ftdi_open(struct tty_struct *tty,
707 struct usb_serial_port *port, struct file *filp);
708 static void ftdi_close(struct tty_struct *tty,
709 struct usb_serial_port *port, struct file *filp);
710 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
711 const unsigned char *buf, int count);
712 static int ftdi_write_room(struct tty_struct *tty);
713 static int ftdi_chars_in_buffer(struct tty_struct *tty);
714 static void ftdi_write_bulk_callback(struct urb *urb);
715 static void ftdi_read_bulk_callback(struct urb *urb);
716 static void ftdi_process_read(struct work_struct *work);
717 static void ftdi_set_termios(struct tty_struct *tty,
718 struct usb_serial_port *port, struct ktermios *old);
719 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
720 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
721 unsigned int set, unsigned int clear);
722 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
723 unsigned int cmd, unsigned long arg);
724 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
725 static void ftdi_throttle(struct tty_struct *tty);
726 static void ftdi_unthrottle(struct tty_struct *tty);
728 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
729 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
730 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
731 static __u32 ftdi_232bm_baud_to_divisor(int baud);
733 static struct usb_serial_driver ftdi_sio_device = {
734 .driver = {
735 .owner = THIS_MODULE,
736 .name = "ftdi_sio",
738 .description = "FTDI USB Serial Device",
739 .usb_driver = &ftdi_driver ,
740 .id_table = id_table_combined,
741 .num_ports = 1,
742 .probe = ftdi_sio_probe,
743 .port_probe = ftdi_sio_port_probe,
744 .port_remove = ftdi_sio_port_remove,
745 .open = ftdi_open,
746 .close = ftdi_close,
747 .throttle = ftdi_throttle,
748 .unthrottle = ftdi_unthrottle,
749 .write = ftdi_write,
750 .write_room = ftdi_write_room,
751 .chars_in_buffer = ftdi_chars_in_buffer,
752 .read_bulk_callback = ftdi_read_bulk_callback,
753 .write_bulk_callback = ftdi_write_bulk_callback,
754 .tiocmget = ftdi_tiocmget,
755 .tiocmset = ftdi_tiocmset,
756 .ioctl = ftdi_ioctl,
757 .set_termios = ftdi_set_termios,
758 .break_ctl = ftdi_break_ctl,
759 .shutdown = ftdi_shutdown,
763 #define WDR_TIMEOUT 5000 /* default urb timeout */
764 #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */
766 /* High and low are for DTR, RTS etc etc */
767 #define HIGH 1
768 #define LOW 0
770 /* number of outstanding urbs to prevent userspace DoS from happening */
771 #define URB_UPPER_LIMIT 42
774 * ***************************************************************************
775 * Utility functions
776 * ***************************************************************************
779 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
781 unsigned short int divisor;
782 /* divisor shifted 3 bits to the left */
783 int divisor3 = base / 2 / baud;
784 if ((divisor3 & 0x7) == 7)
785 divisor3++; /* round x.7/8 up to x+1 */
786 divisor = divisor3 >> 3;
787 divisor3 &= 0x7;
788 if (divisor3 == 1)
789 divisor |= 0xc000;
790 else if (divisor3 >= 4)
791 divisor |= 0x4000;
792 else if (divisor3 != 0)
793 divisor |= 0x8000;
794 else if (divisor == 1)
795 divisor = 0; /* special case for maximum baud rate */
796 return divisor;
799 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
801 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
804 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
806 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
807 __u32 divisor;
808 /* divisor shifted 3 bits to the left */
809 int divisor3 = base / 2 / baud;
810 divisor = divisor3 >> 3;
811 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
812 /* Deal with special cases for highest baud rates. */
813 if (divisor == 1)
814 divisor = 0;
815 else if (divisor == 0x4001)
816 divisor = 1;
817 return divisor;
820 static __u32 ftdi_232bm_baud_to_divisor(int baud)
822 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
825 #define set_mctrl(port, set) update_mctrl((port), (set), 0)
826 #define clear_mctrl(port, clear) update_mctrl((port), 0, (clear))
828 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
829 unsigned int clear)
831 struct ftdi_private *priv = usb_get_serial_port_data(port);
832 char *buf;
833 unsigned urb_value;
834 int rv;
836 if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
837 dbg("%s - DTR|RTS not being set|cleared", __func__);
838 return 0; /* no change */
841 buf = kmalloc(1, GFP_NOIO);
842 if (!buf)
843 return -ENOMEM;
845 clear &= ~set; /* 'set' takes precedence over 'clear' */
846 urb_value = 0;
847 if (clear & TIOCM_DTR)
848 urb_value |= FTDI_SIO_SET_DTR_LOW;
849 if (clear & TIOCM_RTS)
850 urb_value |= FTDI_SIO_SET_RTS_LOW;
851 if (set & TIOCM_DTR)
852 urb_value |= FTDI_SIO_SET_DTR_HIGH;
853 if (set & TIOCM_RTS)
854 urb_value |= FTDI_SIO_SET_RTS_HIGH;
855 rv = usb_control_msg(port->serial->dev,
856 usb_sndctrlpipe(port->serial->dev, 0),
857 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
858 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
859 urb_value, priv->interface,
860 buf, 0, WDR_TIMEOUT);
862 kfree(buf);
863 if (rv < 0) {
864 dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
865 __func__,
866 (set & TIOCM_DTR) ? "HIGH" :
867 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
868 (set & TIOCM_RTS) ? "HIGH" :
869 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
870 } else {
871 dbg("%s - DTR %s, RTS %s", __func__,
872 (set & TIOCM_DTR) ? "HIGH" :
873 (clear & TIOCM_DTR) ? "LOW" : "unchanged",
874 (set & TIOCM_RTS) ? "HIGH" :
875 (clear & TIOCM_RTS) ? "LOW" : "unchanged");
876 /* FIXME: locking on last_dtr_rts */
877 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
879 return rv;
883 static __u32 get_ftdi_divisor(struct tty_struct *tty,
884 struct usb_serial_port *port)
885 { /* get_ftdi_divisor */
886 struct ftdi_private *priv = usb_get_serial_port_data(port);
887 __u32 div_value = 0;
888 int div_okay = 1;
889 int baud;
892 * The logic involved in setting the baudrate can be cleanly split into
893 * 3 steps.
894 * 1. Standard baud rates are set in tty->termios->c_cflag
895 * 2. If these are not enough, you can set any speed using alt_speed as
896 * follows:
897 * - set tty->termios->c_cflag speed to B38400
898 * - set your real speed in tty->alt_speed; it gets ignored when
899 * alt_speed==0, (or)
900 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
901 * follows:
902 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
903 * this just sets alt_speed to (HI: 57600, VHI: 115200,
904 * SHI: 230400, WARP: 460800)
905 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
906 * 3. You can also set baud rate by setting custom divisor as follows
907 * - set tty->termios->c_cflag speed to B38400
908 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as
909 * follows:
910 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
911 * o custom_divisor set to baud_base / your_new_baudrate
912 * ** Step 3 is done courtesy of code borrowed from serial.c
913 * I should really spend some time and separate + move this common
914 * code to serial.c, it is replicated in nearly every serial driver
915 * you see.
918 /* 1. Get the baud rate from the tty settings, this observes
919 alt_speed hack */
921 baud = tty_get_baud_rate(tty);
922 dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
924 /* 2. Observe async-compatible custom_divisor hack, update baudrate
925 if needed */
927 if (baud == 38400 &&
928 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
929 (priv->custom_divisor)) {
930 baud = priv->baud_base / priv->custom_divisor;
931 dbg("%s - custom divisor %d sets baud rate to %d",
932 __func__, priv->custom_divisor, baud);
935 /* 3. Convert baudrate to device-specific divisor */
937 if (!baud)
938 baud = 9600;
939 switch (priv->chip_type) {
940 case SIO: /* SIO chip */
941 switch (baud) {
942 case 300: div_value = ftdi_sio_b300; break;
943 case 600: div_value = ftdi_sio_b600; break;
944 case 1200: div_value = ftdi_sio_b1200; break;
945 case 2400: div_value = ftdi_sio_b2400; break;
946 case 4800: div_value = ftdi_sio_b4800; break;
947 case 9600: div_value = ftdi_sio_b9600; break;
948 case 19200: div_value = ftdi_sio_b19200; break;
949 case 38400: div_value = ftdi_sio_b38400; break;
950 case 57600: div_value = ftdi_sio_b57600; break;
951 case 115200: div_value = ftdi_sio_b115200; break;
952 } /* baud */
953 if (div_value == 0) {
954 dbg("%s - Baudrate (%d) requested is not supported",
955 __func__, baud);
956 div_value = ftdi_sio_b9600;
957 baud = 9600;
958 div_okay = 0;
960 break;
961 case FT8U232AM: /* 8U232AM chip */
962 if (baud <= 3000000) {
963 div_value = ftdi_232am_baud_to_divisor(baud);
964 } else {
965 dbg("%s - Baud rate too high!", __func__);
966 baud = 9600;
967 div_value = ftdi_232am_baud_to_divisor(9600);
968 div_okay = 0;
970 break;
971 case FT232BM: /* FT232BM chip */
972 case FT2232C: /* FT2232C chip */
973 case FT232RL:
974 if (baud <= 3000000) {
975 div_value = ftdi_232bm_baud_to_divisor(baud);
976 } else {
977 dbg("%s - Baud rate too high!", __func__);
978 div_value = ftdi_232bm_baud_to_divisor(9600);
979 div_okay = 0;
980 baud = 9600;
982 break;
983 } /* priv->chip_type */
985 if (div_okay) {
986 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
987 __func__, baud, (unsigned long)div_value,
988 ftdi_chip_name[priv->chip_type]);
991 tty_encode_baud_rate(tty, baud, baud);
992 return div_value;
995 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
997 struct ftdi_private *priv = usb_get_serial_port_data(port);
998 char *buf;
999 __u16 urb_value;
1000 __u16 urb_index;
1001 __u32 urb_index_value;
1002 int rv;
1004 buf = kmalloc(1, GFP_NOIO);
1005 if (!buf)
1006 return -ENOMEM;
1008 urb_index_value = get_ftdi_divisor(tty, port);
1009 urb_value = (__u16)urb_index_value;
1010 urb_index = (__u16)(urb_index_value >> 16);
1011 if (priv->interface) { /* FT2232C */
1012 urb_index = (__u16)((urb_index << 8) | priv->interface);
1015 rv = usb_control_msg(port->serial->dev,
1016 usb_sndctrlpipe(port->serial->dev, 0),
1017 FTDI_SIO_SET_BAUDRATE_REQUEST,
1018 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1019 urb_value, urb_index,
1020 buf, 0, WDR_SHORT_TIMEOUT);
1022 kfree(buf);
1023 return rv;
1028 static int get_serial_info(struct usb_serial_port *port,
1029 struct serial_struct __user *retinfo)
1031 struct ftdi_private *priv = usb_get_serial_port_data(port);
1032 struct serial_struct tmp;
1034 if (!retinfo)
1035 return -EFAULT;
1036 memset(&tmp, 0, sizeof(tmp));
1037 tmp.flags = priv->flags;
1038 tmp.baud_base = priv->baud_base;
1039 tmp.custom_divisor = priv->custom_divisor;
1040 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1041 return -EFAULT;
1042 return 0;
1043 } /* get_serial_info */
1046 static int set_serial_info(struct tty_struct *tty,
1047 struct usb_serial_port *port, struct serial_struct __user *newinfo)
1048 { /* set_serial_info */
1049 struct ftdi_private *priv = usb_get_serial_port_data(port);
1050 struct serial_struct new_serial;
1051 struct ftdi_private old_priv;
1053 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1054 return -EFAULT;
1055 old_priv = *priv;
1057 /* Do error checking and permission checking */
1059 if (!capable(CAP_SYS_ADMIN)) {
1060 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1061 (priv->flags & ~ASYNC_USR_MASK)))
1062 return -EPERM;
1063 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1064 (new_serial.flags & ASYNC_USR_MASK));
1065 priv->custom_divisor = new_serial.custom_divisor;
1066 goto check_and_exit;
1069 if ((new_serial.baud_base != priv->baud_base) &&
1070 (new_serial.baud_base < 9600))
1071 return -EINVAL;
1073 /* Make the changes - these are privileged changes! */
1075 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1076 (new_serial.flags & ASYNC_FLAGS));
1077 priv->custom_divisor = new_serial.custom_divisor;
1079 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1081 check_and_exit:
1082 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1083 (priv->flags & ASYNC_SPD_MASK)) {
1084 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1085 tty->alt_speed = 57600;
1086 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1087 tty->alt_speed = 115200;
1088 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1089 tty->alt_speed = 230400;
1090 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1091 tty->alt_speed = 460800;
1092 else
1093 tty->alt_speed = 0;
1095 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1096 (priv->flags & ASYNC_SPD_MASK)) ||
1097 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1098 (old_priv.custom_divisor != priv->custom_divisor))) {
1099 change_speed(tty, port);
1101 return 0;
1103 } /* set_serial_info */
1106 /* Determine type of FTDI chip based on USB config and descriptor. */
1107 static void ftdi_determine_type(struct usb_serial_port *port)
1109 struct ftdi_private *priv = usb_get_serial_port_data(port);
1110 struct usb_serial *serial = port->serial;
1111 struct usb_device *udev = serial->dev;
1112 unsigned version;
1113 unsigned interfaces;
1115 /* Assume it is not the original SIO device for now. */
1116 priv->baud_base = 48000000 / 2;
1117 priv->write_offset = 0;
1119 version = le16_to_cpu(udev->descriptor.bcdDevice);
1120 interfaces = udev->actconfig->desc.bNumInterfaces;
1121 dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
1122 version, interfaces);
1123 if (interfaces > 1) {
1124 int inter;
1126 /* Multiple interfaces. Assume FT2232C. */
1127 priv->chip_type = FT2232C;
1128 /* Determine interface code. */
1129 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1130 if (inter == 0)
1131 priv->interface = PIT_SIOA;
1132 else
1133 priv->interface = PIT_SIOB;
1134 /* BM-type devices have a bug where bcdDevice gets set
1135 * to 0x200 when iSerialNumber is 0. */
1136 if (version < 0x500) {
1137 dbg("%s: something fishy - bcdDevice too low for multi-interface device",
1138 __func__);
1140 } else if (version < 0x200) {
1141 /* Old device. Assume its the original SIO. */
1142 priv->chip_type = SIO;
1143 priv->baud_base = 12000000 / 16;
1144 priv->write_offset = 1;
1145 } else if (version < 0x400) {
1146 /* Assume its an FT8U232AM (or FT8U245AM) */
1147 /* (It might be a BM because of the iSerialNumber bug,
1148 * but it will still work as an AM device.) */
1149 priv->chip_type = FT8U232AM;
1150 } else if (version < 0x600) {
1151 /* Assume its an FT232BM (or FT245BM) */
1152 priv->chip_type = FT232BM;
1153 } else {
1154 /* Assume its an FT232R */
1155 priv->chip_type = FT232RL;
1157 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1162 * ***************************************************************************
1163 * Sysfs Attribute
1164 * ***************************************************************************
1167 static ssize_t show_latency_timer(struct device *dev,
1168 struct device_attribute *attr, char *buf)
1170 struct usb_serial_port *port = to_usb_serial_port(dev);
1171 struct ftdi_private *priv = usb_get_serial_port_data(port);
1172 struct usb_device *udev = port->serial->dev;
1173 unsigned short latency = 0;
1174 int rv = 0;
1177 dbg("%s", __func__);
1179 rv = usb_control_msg(udev,
1180 usb_rcvctrlpipe(udev, 0),
1181 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1182 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1183 0, priv->interface,
1184 (char *) &latency, 1, WDR_TIMEOUT);
1186 if (rv < 0) {
1187 dev_err(dev, "Unable to read latency timer: %i\n", rv);
1188 return -EIO;
1190 return sprintf(buf, "%i\n", latency);
1193 /* Write a new value of the latency timer, in units of milliseconds. */
1194 static ssize_t store_latency_timer(struct device *dev,
1195 struct device_attribute *attr, const char *valbuf,
1196 size_t count)
1198 struct usb_serial_port *port = to_usb_serial_port(dev);
1199 struct ftdi_private *priv = usb_get_serial_port_data(port);
1200 struct usb_device *udev = port->serial->dev;
1201 char buf[1];
1202 int v = simple_strtoul(valbuf, NULL, 10);
1203 int rv = 0;
1205 dbg("%s: setting latency timer = %i", __func__, v);
1207 rv = usb_control_msg(udev,
1208 usb_sndctrlpipe(udev, 0),
1209 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1210 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1211 v, priv->interface,
1212 buf, 0, WDR_TIMEOUT);
1214 if (rv < 0) {
1215 dev_err(dev, "Unable to write latency timer: %i\n", rv);
1216 return -EIO;
1219 return count;
1222 /* Write an event character directly to the FTDI register. The ASCII
1223 value is in the low 8 bits, with the enable bit in the 9th bit. */
1224 static ssize_t store_event_char(struct device *dev,
1225 struct device_attribute *attr, const char *valbuf, size_t count)
1227 struct usb_serial_port *port = to_usb_serial_port(dev);
1228 struct ftdi_private *priv = usb_get_serial_port_data(port);
1229 struct usb_device *udev = port->serial->dev;
1230 char buf[1];
1231 int v = simple_strtoul(valbuf, NULL, 10);
1232 int rv = 0;
1234 dbg("%s: setting event char = %i", __func__, v);
1236 rv = usb_control_msg(udev,
1237 usb_sndctrlpipe(udev, 0),
1238 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1239 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1240 v, priv->interface,
1241 buf, 0, WDR_TIMEOUT);
1243 if (rv < 0) {
1244 dbg("Unable to write event character: %i", rv);
1245 return -EIO;
1248 return count;
1251 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer,
1252 store_latency_timer);
1253 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1255 static int create_sysfs_attrs(struct usb_serial_port *port)
1257 struct ftdi_private *priv = usb_get_serial_port_data(port);
1258 int retval = 0;
1260 dbg("%s", __func__);
1262 /* XXX I've no idea if the original SIO supports the event_char
1263 * sysfs parameter, so I'm playing it safe. */
1264 if (priv->chip_type != SIO) {
1265 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1266 retval = device_create_file(&port->dev, &dev_attr_event_char);
1267 if ((!retval) &&
1268 (priv->chip_type == FT232BM ||
1269 priv->chip_type == FT2232C ||
1270 priv->chip_type == FT232RL)) {
1271 retval = device_create_file(&port->dev,
1272 &dev_attr_latency_timer);
1275 return retval;
1278 static void remove_sysfs_attrs(struct usb_serial_port *port)
1280 struct ftdi_private *priv = usb_get_serial_port_data(port);
1282 dbg("%s", __func__);
1284 /* XXX see create_sysfs_attrs */
1285 if (priv->chip_type != SIO) {
1286 device_remove_file(&port->dev, &dev_attr_event_char);
1287 if (priv->chip_type == FT232BM ||
1288 priv->chip_type == FT2232C ||
1289 priv->chip_type == FT232RL) {
1290 device_remove_file(&port->dev, &dev_attr_latency_timer);
1297 * ***************************************************************************
1298 * FTDI driver specific functions
1299 * ***************************************************************************
1302 /* Probe function to check for special devices */
1303 static int ftdi_sio_probe(struct usb_serial *serial,
1304 const struct usb_device_id *id)
1306 struct ftdi_sio_quirk *quirk =
1307 (struct ftdi_sio_quirk *)id->driver_info;
1309 if (quirk && quirk->probe) {
1310 int ret = quirk->probe(serial);
1311 if (ret != 0)
1312 return ret;
1315 usb_set_serial_data(serial, (void *)id->driver_info);
1317 return 0;
1320 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1322 struct ftdi_private *priv;
1323 struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1326 dbg("%s", __func__);
1328 priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1329 if (!priv) {
1330 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
1331 sizeof(struct ftdi_private));
1332 return -ENOMEM;
1335 spin_lock_init(&priv->rx_lock);
1336 spin_lock_init(&priv->tx_lock);
1337 init_waitqueue_head(&priv->delta_msr_wait);
1338 /* This will push the characters through immediately rather
1339 than queue a task to deliver them */
1340 priv->flags = ASYNC_LOW_LATENCY;
1342 if (quirk && quirk->port_probe)
1343 quirk->port_probe(priv);
1345 /* Increase the size of read buffers */
1346 kfree(port->bulk_in_buffer);
1347 port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
1348 if (!port->bulk_in_buffer) {
1349 kfree(priv);
1350 return -ENOMEM;
1352 if (port->read_urb) {
1353 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1354 port->read_urb->transfer_buffer_length = BUFSZ;
1357 INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
1358 priv->port = port;
1360 /* Free port's existing write urb and transfer buffer. */
1361 if (port->write_urb) {
1362 usb_free_urb(port->write_urb);
1363 port->write_urb = NULL;
1365 kfree(port->bulk_out_buffer);
1366 port->bulk_out_buffer = NULL;
1368 usb_set_serial_port_data(port, priv);
1370 ftdi_determine_type(port);
1371 create_sysfs_attrs(port);
1372 return 0;
1375 /* Setup for the USB-UIRT device, which requires hardwired
1376 * baudrate (38400 gets mapped to 312500) */
1377 /* Called from usbserial:serial_probe */
1378 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1380 dbg("%s", __func__);
1382 priv->flags |= ASYNC_SPD_CUST;
1383 priv->custom_divisor = 77;
1384 priv->force_baud = 38400;
1385 } /* ftdi_USB_UIRT_setup */
1387 /* Setup for the HE-TIRA1 device, which requires hardwired
1388 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
1390 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1392 dbg("%s", __func__);
1394 priv->flags |= ASYNC_SPD_CUST;
1395 priv->custom_divisor = 240;
1396 priv->force_baud = 38400;
1397 priv->force_rtscts = 1;
1398 } /* ftdi_HE_TIRA1_setup */
1401 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1402 * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1403 * userspace using openocd.
1405 static int ftdi_jtag_probe(struct usb_serial *serial)
1407 struct usb_device *udev = serial->dev;
1408 struct usb_interface *interface = serial->interface;
1410 dbg("%s", __func__);
1412 if (interface == udev->actconfig->interface[0]) {
1413 dev_info(&udev->dev,
1414 "Ignoring serial port reserved for JTAG\n");
1415 return -ENODEV;
1418 return 0;
1422 * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1423 * We have to correct it if we want to read from it.
1425 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1427 struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1428 struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1430 if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1431 ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1432 dev_info(&serial->dev->dev,
1433 "Fixing invalid wMaxPacketSize on read pipe\n");
1436 return 0;
1439 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1440 * it is called when the usb device is disconnected
1442 * usbserial:usb_serial_disconnect
1443 * calls __serial_close for each open of the port
1444 * shutdown is called then (ie ftdi_shutdown)
1446 static void ftdi_shutdown(struct usb_serial *serial)
1448 dbg("%s", __func__);
1451 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1453 struct ftdi_private *priv = usb_get_serial_port_data(port);
1455 dbg("%s", __func__);
1457 remove_sysfs_attrs(port);
1459 /* all open ports are closed at this point
1460 * (by usbserial.c:__serial_close, which calls ftdi_close)
1463 if (priv) {
1464 usb_set_serial_port_data(port, NULL);
1465 kfree(priv);
1468 return 0;
1471 static int ftdi_open(struct tty_struct *tty,
1472 struct usb_serial_port *port, struct file *filp)
1473 { /* ftdi_open */
1474 struct usb_device *dev = port->serial->dev;
1475 struct ftdi_private *priv = usb_get_serial_port_data(port);
1476 unsigned long flags;
1478 int result = 0;
1479 char buf[1]; /* Needed for the usb_control_msg I think */
1481 dbg("%s", __func__);
1483 spin_lock_irqsave(&priv->tx_lock, flags);
1484 priv->tx_bytes = 0;
1485 spin_unlock_irqrestore(&priv->tx_lock, flags);
1486 spin_lock_irqsave(&priv->rx_lock, flags);
1487 priv->rx_bytes = 0;
1488 spin_unlock_irqrestore(&priv->rx_lock, flags);
1490 if (tty)
1491 tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1493 /* No error checking for this (will get errors later anyway) */
1494 /* See ftdi_sio.h for description of what is reset */
1495 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1496 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1497 FTDI_SIO_RESET_SIO,
1498 priv->interface, buf, 0, WDR_TIMEOUT);
1500 /* Termios defaults are set by usb_serial_init. We don't change
1501 port->tty->termios - this would lose speed settings, etc.
1502 This is same behaviour as serial.c/rs_open() - Kuba */
1504 /* ftdi_set_termios will send usb control messages */
1505 if (tty)
1506 ftdi_set_termios(tty, port, tty->termios);
1508 /* FIXME: Flow control might be enabled, so it should be checked -
1509 we have no control of defaults! */
1510 /* Turn on RTS and DTR since we are not flow controlling by default */
1511 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1513 /* Not throttled */
1514 spin_lock_irqsave(&priv->rx_lock, flags);
1515 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1516 spin_unlock_irqrestore(&priv->rx_lock, flags);
1518 /* Start reading from the device */
1519 priv->rx_processed = 0;
1520 usb_fill_bulk_urb(port->read_urb, dev,
1521 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1522 port->read_urb->transfer_buffer,
1523 port->read_urb->transfer_buffer_length,
1524 ftdi_read_bulk_callback, port);
1525 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1526 if (result)
1527 dev_err(&port->dev,
1528 "%s - failed submitting read urb, error %d\n",
1529 __func__, result);
1532 return result;
1533 } /* ftdi_open */
1538 * usbserial:__serial_close only calls ftdi_close if the point is open
1540 * This only gets called when it is the last close
1545 static void ftdi_close(struct tty_struct *tty,
1546 struct usb_serial_port *port, struct file *filp)
1547 { /* ftdi_close */
1548 unsigned int c_cflag = tty->termios->c_cflag;
1549 struct ftdi_private *priv = usb_get_serial_port_data(port);
1550 char buf[1];
1552 dbg("%s", __func__);
1554 mutex_lock(&port->serial->disc_mutex);
1555 if (c_cflag & HUPCL && !port->serial->disconnected) {
1556 /* Disable flow control */
1557 if (usb_control_msg(port->serial->dev,
1558 usb_sndctrlpipe(port->serial->dev, 0),
1559 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1560 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1561 0, priv->interface, buf, 0,
1562 WDR_TIMEOUT) < 0) {
1563 dev_err(&port->dev, "error from flowcontrol urb\n");
1566 /* drop RTS and DTR */
1567 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1568 } /* Note change no line if hupcl is off */
1569 mutex_unlock(&port->serial->disc_mutex);
1571 /* cancel any scheduled reading */
1572 cancel_delayed_work(&priv->rx_work);
1573 flush_scheduled_work();
1575 /* shutdown our bulk read */
1576 usb_kill_urb(port->read_urb);
1577 } /* ftdi_close */
1581 /* The SIO requires the first byte to have:
1582 * B0 1
1583 * B1 0
1584 * B2..7 length of message excluding byte 0
1586 * The new devices do not require this byte
1588 static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
1589 const unsigned char *buf, int count)
1590 { /* ftdi_write */
1591 struct ftdi_private *priv = usb_get_serial_port_data(port);
1592 struct urb *urb;
1593 unsigned char *buffer;
1594 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1595 int status;
1596 int transfer_size;
1597 unsigned long flags;
1599 dbg("%s port %d, %d bytes", __func__, port->number, count);
1601 if (count == 0) {
1602 dbg("write request of 0 bytes");
1603 return 0;
1605 spin_lock_irqsave(&priv->tx_lock, flags);
1606 if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
1607 spin_unlock_irqrestore(&priv->tx_lock, flags);
1608 dbg("%s - write limit hit\n", __func__);
1609 return 0;
1611 priv->tx_outstanding_urbs++;
1612 spin_unlock_irqrestore(&priv->tx_lock, flags);
1614 data_offset = priv->write_offset;
1615 dbg("data_offset set to %d", data_offset);
1617 /* Determine total transfer size */
1618 transfer_size = count;
1619 if (data_offset > 0) {
1620 /* Original sio needs control bytes too... */
1621 transfer_size += (data_offset *
1622 ((count + (PKTSZ - 1 - data_offset)) /
1623 (PKTSZ - data_offset)));
1626 buffer = kmalloc(transfer_size, GFP_ATOMIC);
1627 if (!buffer) {
1628 dev_err(&port->dev,
1629 "%s ran out of kernel memory for urb ...\n", __func__);
1630 count = -ENOMEM;
1631 goto error_no_buffer;
1634 urb = usb_alloc_urb(0, GFP_ATOMIC);
1635 if (!urb) {
1636 dev_err(&port->dev, "%s - no more free urbs\n", __func__);
1637 count = -ENOMEM;
1638 goto error_no_urb;
1641 /* Copy data */
1642 if (data_offset > 0) {
1643 /* Original sio requires control byte at start of
1644 each packet. */
1645 int user_pktsz = PKTSZ - data_offset;
1646 int todo = count;
1647 unsigned char *first_byte = buffer;
1648 const unsigned char *current_position = buf;
1650 while (todo > 0) {
1651 if (user_pktsz > todo)
1652 user_pktsz = todo;
1653 /* Write the control byte at the front of the packet*/
1654 *first_byte = 1 | ((user_pktsz) << 2);
1655 /* Copy data for packet */
1656 memcpy(first_byte + data_offset,
1657 current_position, user_pktsz);
1658 first_byte += user_pktsz + data_offset;
1659 current_position += user_pktsz;
1660 todo -= user_pktsz;
1662 } else {
1663 /* No control byte required. */
1664 /* Copy in the data to send */
1665 memcpy(buffer, buf, count);
1668 usb_serial_debug_data(debug, &port->dev, __func__,
1669 transfer_size, buffer);
1671 /* fill the buffer and send it */
1672 usb_fill_bulk_urb(urb, port->serial->dev,
1673 usb_sndbulkpipe(port->serial->dev,
1674 port->bulk_out_endpointAddress),
1675 buffer, transfer_size,
1676 ftdi_write_bulk_callback, port);
1678 status = usb_submit_urb(urb, GFP_ATOMIC);
1679 if (status) {
1680 dev_err(&port->dev,
1681 "%s - failed submitting write urb, error %d\n",
1682 __func__, status);
1683 count = status;
1684 goto error;
1685 } else {
1686 spin_lock_irqsave(&priv->tx_lock, flags);
1687 priv->tx_outstanding_bytes += count;
1688 priv->tx_bytes += count;
1689 spin_unlock_irqrestore(&priv->tx_lock, flags);
1692 /* we are done with this urb, so let the host driver
1693 * really free it when it is finished with it */
1694 usb_free_urb(urb);
1696 dbg("%s write returning: %d", __func__, count);
1697 return count;
1698 error:
1699 usb_free_urb(urb);
1700 error_no_urb:
1701 kfree(buffer);
1702 error_no_buffer:
1703 spin_lock_irqsave(&priv->tx_lock, flags);
1704 priv->tx_outstanding_urbs--;
1705 spin_unlock_irqrestore(&priv->tx_lock, flags);
1706 return count;
1707 } /* ftdi_write */
1710 /* This function may get called when the device is closed */
1712 static void ftdi_write_bulk_callback(struct urb *urb)
1714 unsigned long flags;
1715 struct usb_serial_port *port = urb->context;
1716 struct ftdi_private *priv;
1717 int data_offset; /* will be 1 for the SIO and 0 otherwise */
1718 unsigned long countback;
1719 int status = urb->status;
1721 /* free up the transfer buffer, as usb_free_urb() does not do this */
1722 kfree(urb->transfer_buffer);
1724 dbg("%s - port %d", __func__, port->number);
1726 if (status) {
1727 dbg("nonzero write bulk status received: %d", status);
1728 return;
1731 priv = usb_get_serial_port_data(port);
1732 if (!priv) {
1733 dbg("%s - bad port private data pointer - exiting", __func__);
1734 return;
1736 /* account for transferred data */
1737 countback = urb->actual_length;
1738 data_offset = priv->write_offset;
1739 if (data_offset > 0) {
1740 /* Subtract the control bytes */
1741 countback -= (data_offset * DIV_ROUND_UP(countback, PKTSZ));
1743 spin_lock_irqsave(&priv->tx_lock, flags);
1744 --priv->tx_outstanding_urbs;
1745 priv->tx_outstanding_bytes -= countback;
1746 spin_unlock_irqrestore(&priv->tx_lock, flags);
1748 usb_serial_port_softint(port);
1749 } /* ftdi_write_bulk_callback */
1752 static int ftdi_write_room(struct tty_struct *tty)
1754 struct usb_serial_port *port = tty->driver_data;
1755 struct ftdi_private *priv = usb_get_serial_port_data(port);
1756 int room;
1757 unsigned long flags;
1759 dbg("%s - port %d", __func__, port->number);
1761 spin_lock_irqsave(&priv->tx_lock, flags);
1762 if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
1764 * We really can take anything the user throws at us
1765 * but let's pick a nice big number to tell the tty
1766 * layer that we have lots of free space
1768 room = 2048;
1769 } else {
1770 room = 0;
1772 spin_unlock_irqrestore(&priv->tx_lock, flags);
1773 return room;
1776 static int ftdi_chars_in_buffer(struct tty_struct *tty)
1778 struct usb_serial_port *port = tty->driver_data;
1779 struct ftdi_private *priv = usb_get_serial_port_data(port);
1780 int buffered;
1781 unsigned long flags;
1783 dbg("%s - port %d", __func__, port->number);
1785 spin_lock_irqsave(&priv->tx_lock, flags);
1786 buffered = (int)priv->tx_outstanding_bytes;
1787 spin_unlock_irqrestore(&priv->tx_lock, flags);
1788 if (buffered < 0) {
1789 dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
1790 __func__);
1791 buffered = 0;
1793 return buffered;
1796 static void ftdi_read_bulk_callback(struct urb *urb)
1798 struct usb_serial_port *port = urb->context;
1799 struct tty_struct *tty;
1800 struct ftdi_private *priv;
1801 unsigned long countread;
1802 unsigned long flags;
1803 int status = urb->status;
1805 if (urb->number_of_packets > 0) {
1806 dev_err(&port->dev, "%s transfer_buffer_length %d "
1807 "actual_length %d number of packets %d\n", __func__,
1808 urb->transfer_buffer_length,
1809 urb->actual_length, urb->number_of_packets);
1810 dev_err(&port->dev, "%s transfer_flags %x\n", __func__,
1811 urb->transfer_flags);
1814 dbg("%s - port %d", __func__, port->number);
1816 if (port->port.count <= 0)
1817 return;
1819 tty = tty_port_tty_get(&port->port);
1820 if (!tty) {
1821 dbg("%s - bad tty pointer - exiting", __func__);
1822 return;
1825 priv = usb_get_serial_port_data(port);
1826 if (!priv) {
1827 dbg("%s - bad port private data pointer - exiting", __func__);
1828 goto out;
1831 if (urb != port->read_urb)
1832 dev_err(&port->dev, "%s - Not my urb!\n", __func__);
1834 if (status) {
1835 /* This will happen at close every time so it is a dbg not an
1836 err */
1837 dbg("(this is ok on close) nonzero read bulk status received: %d", status);
1838 goto out;
1841 /* count data bytes, but not status bytes */
1842 countread = urb->actual_length;
1843 countread -= 2 * DIV_ROUND_UP(countread, PKTSZ);
1844 spin_lock_irqsave(&priv->rx_lock, flags);
1845 priv->rx_bytes += countread;
1846 spin_unlock_irqrestore(&priv->rx_lock, flags);
1848 ftdi_process_read(&priv->rx_work.work);
1849 out:
1850 tty_kref_put(tty);
1851 } /* ftdi_read_bulk_callback */
1854 static void ftdi_process_read(struct work_struct *work)
1855 { /* ftdi_process_read */
1856 struct ftdi_private *priv =
1857 container_of(work, struct ftdi_private, rx_work.work);
1858 struct usb_serial_port *port = priv->port;
1859 struct urb *urb;
1860 struct tty_struct *tty;
1861 char error_flag;
1862 unsigned char *data;
1864 int i;
1865 int result;
1866 int need_flip;
1867 int packet_offset;
1868 unsigned long flags;
1870 dbg("%s - port %d", __func__, port->number);
1872 if (port->port.count <= 0)
1873 return;
1875 tty = tty_port_tty_get(&port->port);
1876 if (!tty) {
1877 dbg("%s - bad tty pointer - exiting", __func__);
1878 return;
1881 priv = usb_get_serial_port_data(port);
1882 if (!priv) {
1883 dbg("%s - bad port private data pointer - exiting", __func__);
1884 goto out;
1887 urb = port->read_urb;
1888 if (!urb) {
1889 dbg("%s - bad read_urb pointer - exiting", __func__);
1890 goto out;
1893 data = urb->transfer_buffer;
1895 if (priv->rx_processed) {
1896 dbg("%s - already processed: %d bytes, %d remain", __func__,
1897 priv->rx_processed,
1898 urb->actual_length - priv->rx_processed);
1899 } else {
1900 /* The first two bytes of every read packet are status */
1901 if (urb->actual_length > 2)
1902 usb_serial_debug_data(debug, &port->dev, __func__,
1903 urb->actual_length, data);
1904 else
1905 dbg("Status only: %03oo %03oo", data[0], data[1]);
1909 /* TO DO -- check for hung up line and handle appropriately: */
1910 /* send hangup */
1911 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1912 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1914 need_flip = 0;
1915 for (packet_offset = priv->rx_processed;
1916 packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1917 int length;
1919 /* Compare new line status to the old one, signal if different/
1920 N.B. packet may be processed more than once, but differences
1921 are only processed once. */
1922 if (priv != NULL) {
1923 char new_status = data[packet_offset + 0] &
1924 FTDI_STATUS_B0_MASK;
1925 if (new_status != priv->prev_status) {
1926 priv->diff_status |=
1927 new_status ^ priv->prev_status;
1928 wake_up_interruptible(&priv->delta_msr_wait);
1929 priv->prev_status = new_status;
1933 length = min(PKTSZ, urb->actual_length-packet_offset)-2;
1934 if (length < 0) {
1935 dev_err(&port->dev, "%s - bad packet length: %d\n",
1936 __func__, length+2);
1937 length = 0;
1940 if (priv->rx_flags & THROTTLED) {
1941 dbg("%s - throttled", __func__);
1942 break;
1944 if (tty_buffer_request_room(tty, length) < length) {
1945 /* break out & wait for throttling/unthrottling to
1946 happen */
1947 dbg("%s - receive room low", __func__);
1948 break;
1951 /* Handle errors and break */
1952 error_flag = TTY_NORMAL;
1953 /* Although the device uses a bitmask and hence can have
1954 multiple errors on a packet - the order here sets the
1955 priority the error is returned to the tty layer */
1957 if (data[packet_offset+1] & FTDI_RS_OE) {
1958 error_flag = TTY_OVERRUN;
1959 dbg("OVERRRUN error");
1961 if (data[packet_offset+1] & FTDI_RS_BI) {
1962 error_flag = TTY_BREAK;
1963 dbg("BREAK received");
1965 if (data[packet_offset+1] & FTDI_RS_PE) {
1966 error_flag = TTY_PARITY;
1967 dbg("PARITY error");
1969 if (data[packet_offset+1] & FTDI_RS_FE) {
1970 error_flag = TTY_FRAME;
1971 dbg("FRAMING error");
1973 if (length > 0) {
1974 for (i = 2; i < length+2; i++) {
1975 /* Note that the error flag is duplicated for
1976 every character received since we don't know
1977 which character it applied to */
1978 tty_insert_flip_char(tty,
1979 data[packet_offset + i], error_flag);
1981 need_flip = 1;
1984 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1985 /* if a parity error is detected you get status packets forever
1986 until a character is sent without a parity error.
1987 This doesn't work well since the application receives a
1988 never ending stream of bad data - even though new data
1989 hasn't been sent. Therefore I (bill) have taken this out.
1990 However - this might make sense for framing errors and so on
1991 so I am leaving the code in for now.
1993 else {
1994 if (error_flag != TTY_NORMAL) {
1995 dbg("error_flag is not normal");
1996 /* In this case it is just status - if that is
1997 an error send a bad character */
1998 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
1999 tty_flip_buffer_push(tty);
2000 tty_insert_flip_char(tty, 0xff, error_flag);
2001 need_flip = 1;
2004 #endif
2005 } /* "for(packet_offset=0..." */
2007 /* Low latency */
2008 if (need_flip)
2009 tty_flip_buffer_push(tty);
2011 if (packet_offset < urb->actual_length) {
2012 /* not completely processed - record progress */
2013 priv->rx_processed = packet_offset;
2014 dbg("%s - incomplete, %d bytes processed, %d remain",
2015 __func__, packet_offset,
2016 urb->actual_length - packet_offset);
2017 /* check if we were throttled while processing */
2018 spin_lock_irqsave(&priv->rx_lock, flags);
2019 if (priv->rx_flags & THROTTLED) {
2020 priv->rx_flags |= ACTUALLY_THROTTLED;
2021 spin_unlock_irqrestore(&priv->rx_lock, flags);
2022 dbg("%s - deferring remainder until unthrottled",
2023 __func__);
2024 return;
2026 spin_unlock_irqrestore(&priv->rx_lock, flags);
2027 /* if the port is closed stop trying to read */
2028 if (port->port.count > 0)
2029 /* delay processing of remainder */
2030 schedule_delayed_work(&priv->rx_work, 1);
2031 else
2032 dbg("%s - port is closed", __func__);
2033 goto out;
2036 /* urb is completely processed */
2037 priv->rx_processed = 0;
2039 /* if the port is closed stop trying to read */
2040 if (port->port.count > 0) {
2041 /* Continue trying to always read */
2042 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
2043 usb_rcvbulkpipe(port->serial->dev,
2044 port->bulk_in_endpointAddress),
2045 port->read_urb->transfer_buffer,
2046 port->read_urb->transfer_buffer_length,
2047 ftdi_read_bulk_callback, port);
2049 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2050 if (result)
2051 dev_err(&port->dev,
2052 "%s - failed resubmitting read urb, error %d\n",
2053 __func__, result);
2055 out:
2056 tty_kref_put(tty);
2057 } /* ftdi_process_read */
2060 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2062 struct usb_serial_port *port = tty->driver_data;
2063 struct ftdi_private *priv = usb_get_serial_port_data(port);
2064 __u16 urb_value = 0;
2065 char buf[1];
2067 /* break_state = -1 to turn on break, and 0 to turn off break */
2068 /* see drivers/char/tty_io.c to see it used */
2069 /* last_set_data_urb_value NEVER has the break bit set in it */
2071 if (break_state)
2072 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2073 else
2074 urb_value = priv->last_set_data_urb_value;
2076 if (usb_control_msg(port->serial->dev,
2077 usb_sndctrlpipe(port->serial->dev, 0),
2078 FTDI_SIO_SET_DATA_REQUEST,
2079 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2080 urb_value , priv->interface,
2081 buf, 0, WDR_TIMEOUT) < 0) {
2082 dev_err(&port->dev, "%s FAILED to enable/disable break state "
2083 "(state was %d)\n", __func__, break_state);
2086 dbg("%s break state is %d - urb is %d", __func__,
2087 break_state, urb_value);
2092 /* old_termios contains the original termios settings and tty->termios contains
2093 * the new setting to be used
2094 * WARNING: set_termios calls this with old_termios in kernel space
2097 static void ftdi_set_termios(struct tty_struct *tty,
2098 struct usb_serial_port *port, struct ktermios *old_termios)
2099 { /* ftdi_termios */
2100 struct usb_device *dev = port->serial->dev;
2101 struct ftdi_private *priv = usb_get_serial_port_data(port);
2102 struct ktermios *termios = tty->termios;
2103 unsigned int cflag = termios->c_cflag;
2104 __u16 urb_value; /* will hold the new flags */
2105 char buf[1]; /* Perhaps I should dynamically alloc this? */
2107 /* Added for xon/xoff support */
2108 unsigned int iflag = termios->c_iflag;
2109 unsigned char vstop;
2110 unsigned char vstart;
2112 dbg("%s", __func__);
2114 /* Force baud rate if this device requires it, unless it is set to
2115 B0. */
2116 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2117 dbg("%s: forcing baud rate for this device", __func__);
2118 tty_encode_baud_rate(tty, priv->force_baud,
2119 priv->force_baud);
2122 /* Force RTS-CTS if this device requires it. */
2123 if (priv->force_rtscts) {
2124 dbg("%s: forcing rtscts for this device", __func__);
2125 termios->c_cflag |= CRTSCTS;
2128 cflag = termios->c_cflag;
2130 /* FIXME -For this cut I don't care if the line is really changing or
2131 not - so just do the change regardless - should be able to
2132 compare old_termios and tty->termios */
2133 /* NOTE These routines can get interrupted by
2134 ftdi_sio_read_bulk_callback - need to examine what this means -
2135 don't see any problems yet */
2137 /* Set number of data bits, parity, stop bits */
2139 termios->c_cflag &= ~CMSPAR;
2141 urb_value = 0;
2142 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2143 FTDI_SIO_SET_DATA_STOP_BITS_1);
2144 urb_value |= (cflag & PARENB ?
2145 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2146 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2147 FTDI_SIO_SET_DATA_PARITY_NONE);
2148 if (cflag & CSIZE) {
2149 switch (cflag & CSIZE) {
2150 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2151 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2152 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2153 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2154 default:
2155 dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n");
2159 /* This is needed by the break command since it uses the same command
2160 - but is or'ed with this value */
2161 priv->last_set_data_urb_value = urb_value;
2163 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2164 FTDI_SIO_SET_DATA_REQUEST,
2165 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2166 urb_value , priv->interface,
2167 buf, 0, WDR_SHORT_TIMEOUT) < 0) {
2168 dev_err(&port->dev, "%s FAILED to set "
2169 "databits/stopbits/parity\n", __func__);
2172 /* Now do the baudrate */
2173 if ((cflag & CBAUD) == B0) {
2174 /* Disable flow control */
2175 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2176 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2177 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2178 0, priv->interface,
2179 buf, 0, WDR_TIMEOUT) < 0) {
2180 dev_err(&port->dev,
2181 "%s error from disable flowcontrol urb\n",
2182 __func__);
2184 /* Drop RTS and DTR */
2185 clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2186 } else {
2187 /* set the baudrate determined before */
2188 if (change_speed(tty, port))
2189 dev_err(&port->dev, "%s urb failed to set baudrate\n",
2190 __func__);
2191 /* Ensure RTS and DTR are raised when baudrate changed from 0 */
2192 if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
2193 set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2196 /* Set flow control */
2197 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2198 if (cflag & CRTSCTS) {
2199 dbg("%s Setting to CRTSCTS flow control", __func__);
2200 if (usb_control_msg(dev,
2201 usb_sndctrlpipe(dev, 0),
2202 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2203 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2204 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2205 buf, 0, WDR_TIMEOUT) < 0) {
2206 dev_err(&port->dev,
2207 "urb failed to set to rts/cts flow control\n");
2210 } else {
2212 * Xon/Xoff code
2214 * Check the IXOFF status in the iflag component of the
2215 * termios structure. If IXOFF is not set, the pre-xon/xoff
2216 * code is executed.
2218 if (iflag & IXOFF) {
2219 dbg("%s request to enable xonxoff iflag=%04x",
2220 __func__, iflag);
2221 /* Try to enable the XON/XOFF on the ftdi_sio
2222 * Set the vstart and vstop -- could have been done up
2223 * above where a lot of other dereferencing is done but
2224 * that would be very inefficient as vstart and vstop
2225 * are not always needed.
2227 vstart = termios->c_cc[VSTART];
2228 vstop = termios->c_cc[VSTOP];
2229 urb_value = (vstop << 8) | (vstart);
2231 if (usb_control_msg(dev,
2232 usb_sndctrlpipe(dev, 0),
2233 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2234 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2235 urb_value , (FTDI_SIO_XON_XOFF_HS
2236 | priv->interface),
2237 buf, 0, WDR_TIMEOUT) < 0) {
2238 dev_err(&port->dev, "urb failed to set to "
2239 "xon/xoff flow control\n");
2241 } else {
2242 /* else clause to only run if cflag ! CRTSCTS and iflag
2243 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2244 * stack - not by device */
2245 dbg("%s Turning off hardware flow control", __func__);
2246 if (usb_control_msg(dev,
2247 usb_sndctrlpipe(dev, 0),
2248 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2249 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2250 0, priv->interface,
2251 buf, 0, WDR_TIMEOUT) < 0) {
2252 dev_err(&port->dev,
2253 "urb failed to clear flow control\n");
2258 return;
2261 static int ftdi_tiocmget(struct tty_struct *tty, struct file *file)
2263 struct usb_serial_port *port = tty->driver_data;
2264 struct ftdi_private *priv = usb_get_serial_port_data(port);
2265 unsigned char buf[2];
2266 int ret;
2268 dbg("%s TIOCMGET", __func__);
2269 switch (priv->chip_type) {
2270 case SIO:
2271 /* Request the status from the device */
2272 ret = usb_control_msg(port->serial->dev,
2273 usb_rcvctrlpipe(port->serial->dev, 0),
2274 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2275 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2276 0, 0,
2277 buf, 1, WDR_TIMEOUT);
2278 if (ret < 0) {
2279 dbg("%s Could not get modem status of device - err: %d", __func__,
2280 ret);
2281 return ret;
2283 break;
2284 case FT8U232AM:
2285 case FT232BM:
2286 case FT2232C:
2287 case FT232RL:
2288 /* the 8U232AM returns a two byte value (the sio is a 1 byte
2289 value) - in the same format as the data returned from the in
2290 point */
2291 ret = usb_control_msg(port->serial->dev,
2292 usb_rcvctrlpipe(port->serial->dev, 0),
2293 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2294 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2295 0, priv->interface,
2296 buf, 2, WDR_TIMEOUT);
2297 if (ret < 0) {
2298 dbg("%s Could not get modem status of device - err: %d", __func__,
2299 ret);
2300 return ret;
2302 break;
2303 default:
2304 return -EFAULT;
2305 break;
2308 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2309 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2310 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2311 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2312 priv->last_dtr_rts;
2315 static int ftdi_tiocmset(struct tty_struct *tty, struct file *file,
2316 unsigned int set, unsigned int clear)
2318 struct usb_serial_port *port = tty->driver_data;
2319 dbg("%s TIOCMSET", __func__);
2320 return update_mctrl(port, set, clear);
2324 static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
2325 unsigned int cmd, unsigned long arg)
2327 struct usb_serial_port *port = tty->driver_data;
2328 struct ftdi_private *priv = usb_get_serial_port_data(port);
2330 dbg("%s cmd 0x%04x", __func__, cmd);
2332 /* Based on code from acm.c and others */
2333 switch (cmd) {
2335 case TIOCGSERIAL: /* gets serial port data */
2336 return get_serial_info(port,
2337 (struct serial_struct __user *) arg);
2339 case TIOCSSERIAL: /* sets serial port data */
2340 return set_serial_info(tty, port,
2341 (struct serial_struct __user *) arg);
2344 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2345 * - mask passed in arg for lines of interest
2346 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2347 * Caller should use TIOCGICOUNT to see which one it was.
2349 * This code is borrowed from linux/drivers/char/serial.c
2351 case TIOCMIWAIT:
2352 while (priv != NULL) {
2353 interruptible_sleep_on(&priv->delta_msr_wait);
2354 /* see if a signal did it */
2355 if (signal_pending(current))
2356 return -ERESTARTSYS;
2357 else {
2358 char diff = priv->diff_status;
2360 if (diff == 0)
2361 return -EIO; /* no change => error */
2363 /* Consume all events */
2364 priv->diff_status = 0;
2366 /* Return 0 if caller wanted to know about
2367 these bits */
2368 if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2369 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2370 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2371 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) {
2372 return 0;
2375 * Otherwise caller can't care less about what
2376 * happened,and so we continue to wait for more
2377 * events.
2381 return 0;
2382 default:
2383 break;
2385 /* This is not necessarily an error - turns out the higher layers
2386 * will do some ioctls themselves (see comment above)
2388 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
2389 return -ENOIOCTLCMD;
2392 static void ftdi_throttle(struct tty_struct *tty)
2394 struct usb_serial_port *port = tty->driver_data;
2395 struct ftdi_private *priv = usb_get_serial_port_data(port);
2396 unsigned long flags;
2398 dbg("%s - port %d", __func__, port->number);
2400 spin_lock_irqsave(&priv->rx_lock, flags);
2401 priv->rx_flags |= THROTTLED;
2402 spin_unlock_irqrestore(&priv->rx_lock, flags);
2406 static void ftdi_unthrottle(struct tty_struct *tty)
2408 struct usb_serial_port *port = tty->driver_data;
2409 struct ftdi_private *priv = usb_get_serial_port_data(port);
2410 int actually_throttled;
2411 unsigned long flags;
2413 dbg("%s - port %d", __func__, port->number);
2415 spin_lock_irqsave(&priv->rx_lock, flags);
2416 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2417 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2418 spin_unlock_irqrestore(&priv->rx_lock, flags);
2420 if (actually_throttled)
2421 schedule_delayed_work(&priv->rx_work, 0);
2424 static int __init ftdi_init(void)
2426 int retval;
2428 dbg("%s", __func__);
2429 if (vendor > 0 && product > 0) {
2430 /* Add user specified VID/PID to reserved element of table. */
2431 int i;
2432 for (i = 0; id_table_combined[i].idVendor; i++)
2434 id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
2435 id_table_combined[i].idVendor = vendor;
2436 id_table_combined[i].idProduct = product;
2438 retval = usb_serial_register(&ftdi_sio_device);
2439 if (retval)
2440 goto failed_sio_register;
2441 retval = usb_register(&ftdi_driver);
2442 if (retval)
2443 goto failed_usb_register;
2445 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
2446 DRIVER_DESC "\n");
2447 return 0;
2448 failed_usb_register:
2449 usb_serial_deregister(&ftdi_sio_device);
2450 failed_sio_register:
2451 return retval;
2455 static void __exit ftdi_exit(void)
2458 dbg("%s", __func__);
2460 usb_deregister(&ftdi_driver);
2461 usb_serial_deregister(&ftdi_sio_device);
2466 module_init(ftdi_init);
2467 module_exit(ftdi_exit);
2469 MODULE_AUTHOR(DRIVER_AUTHOR);
2470 MODULE_DESCRIPTION(DRIVER_DESC);
2471 MODULE_LICENSE("GPL");
2473 module_param(debug, bool, S_IRUGO | S_IWUSR);
2474 MODULE_PARM_DESC(debug, "Debug enabled or not");
2475 module_param(vendor, ushort, 0);
2476 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
2477 __MODULE_STRING(FTDI_VID)")");
2478 module_param(product, ushort, 0);
2479 MODULE_PARM_DESC(product, "User specified product ID");