?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / serial / ftdi_sio.c
blob4afd905fe2fe429ffcb766678a68e212c925dc5a
1 /*
2 * USB FTDI SIO driver
3 *
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)
9 *
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.
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 *
20 * (21/Jul/2004) Ian Abbott
21 * Incorporated Steven Turner's code to add support for the FT2232C chip.
22 * The prelimilary port to the 2.6 kernel was by Rus V. Brushkoff. I have
23 * fixed a couple of things.
24 *
25 * (27/May/2004) Ian Abbott
26 * Improved throttling code, mostly stolen from the WhiteHEAT driver.
27 *
28 * (26/Mar/2004) Jan Capek
29 * Added PID's for ICD-U20/ICD-U40 - incircuit PIC debuggers from CCS Inc.
30 *
31 * (09/Feb/2004) Ian Abbott
32 * Changed full name of USB-UIRT device to avoid "/" character.
33 * Added FTDI's alternate PID (0x6006) for FT232/245 devices.
34 * Added PID for "ELV USB Module UO100" from Stefan Frings.
35 *
36 * (21/Oct/2003) Ian Abbott
37 * Renamed some VID/PID macros for Matrix Orbital and Perle Systems
38 * devices. Removed Matrix Orbital and Perle Systems devices from the
39 * 8U232AM device table, but left them in the FT232BM table, as they are
40 * known to use only FT232BM.
41 *
42 * (17/Oct/2003) Scott Allen
43 * Added vid/pid for Perle Systems UltraPort USB serial converters
44 *
45 * (21/Sep/2003) Ian Abbott
46 * Added VID/PID for Omnidirectional Control Technology US101 USB to
47 * RS-232 adapter (also rebadged as Dick Smith Electronics XH6381).
48 * VID/PID supplied by Donald Gordon.
49 *
50 * (19/Aug/2003) Ian Abbott
51 * Freed urb's transfer buffer in write bulk callback.
52 * Omitted some paranoid checks in write bulk callback that don't matter.
53 * Scheduled work in write bulk callback regardless of port's open count.
54 *
55 * (05/Aug/2003) Ian Abbott
56 * Added VID/PID for ID TECH IDT1221U USB to RS-232 adapter.
57 * VID/PID provided by Steve Briggs.
58 *
59 * (23/Jul/2003) Ian Abbott
60 * Added PIDs for CrystalFontz 547, 633, 631, 635, 640 and 640 from
61 * Wayne Wylupski.
62 *
63 * (10/Jul/2003) David Glance
64 * Added PID for DSS-20 SyncStation cradle for Sony-Ericsson P800.
65 *
66 * (27/Jun/2003) Ian Abbott
67 * Reworked the urb handling logic. We have no more pool, but dynamically
68 * allocate the urb and the transfer buffer on the fly. In testing this
69 * does not incure any measurable overhead. This also relies on the fact
70 * that we have proper reference counting logic for urbs. I nicked this
71 * from Greg KH's Visor driver.
72 *
73 * (23/Jun/2003) Ian Abbott
74 * Reduced flip buffer pushes and corrected a data length test in
75 * ftdi_read_bulk_callback.
76 * Defererence pointers after any paranoid checks, not before.
77 *
78 * (21/Jun/2003) Erik Nygren
79 * Added support for Home Electronics Tira-1 IR tranceiver using FT232BM chip.
80 * See <http://www.home-electro.com/tira1.htm>. Only operates properly
81 * at 100000 and RTS-CTS, so set custom divisor mode on startup.
82 * Also force the Tira-1 and USB-UIRT to only use their custom baud rates.
83 *
84 * (18/Jun/2003) Ian Abbott
85 * Added Device ID of the USB relais from Rudolf Gugler (backported from
86 * Philipp Gühring's patch for 2.5.x kernel).
87 * Moved read transfer buffer reallocation into startup function.
88 * Free existing write urb and transfer buffer in startup function.
89 * Only use urbs in write urb pool that were successfully allocated.
90 * Moved some constant macros out of functions.
91 * Minor whitespace and comment changes.
92 *
93 * (12/Jun/2003) David Norwood
94 * Added support for USB-UIRT IR tranceiver using 8U232AM chip.
95 * See <http://home.earthlink.net/~jrhees/USBUIRT/index.htm>. Only
96 * operates properly at 312500, so set custom divisor mode on startup.
97 *
98 * (12/Jun/2003) Ian Abbott
99 * Added Sealevel SeaLINK+ 210x, 220x, 240x, 280x vid/pids from Tuan Hoang
100 * - I've eliminated some that don't seem to exist!
101 * Added Home Electronics Tira-1 IR transceiver pid from Chris Horn
102 * Some whitespace/coding-style cleanups
103 *
104 * (11/Jun/2003) Ian Abbott
105 * Fixed unsafe spinlock usage in ftdi_write
106 *
107 * (24/Feb/2003) Richard Shooter
108 * Increase read buffer size to improve read speeds at higher baud rates
109 * (specifically tested with up to 1Mb/sec at 1.5M baud)
110 *
111 * (23/Feb/2003) John Wilkins
112 * Added Xon/xoff flow control (activating support in the ftdi device)
113 * Added vid/pid for Videonetworks/Homechoice (UK ISP)
114 *
115 * (23/Feb/2003) Bill Ryder
116 * Added matrix orb device vid/pids from Wayne Wylupski
117 *
118 * (19/Feb/2003) Ian Abbott
119 * For TIOCSSERIAL, set alt_speed to 0 when ASYNC_SPD_MASK value has
120 * changed to something other than ASYNC_SPD_HI, ASYNC_SPD_VHI,
121 * ASYNC_SPD_SHI or ASYNC_SPD_WARP. Also, unless ASYNC_SPD_CUST is in
122 * force, don't bother changing baud rate when custom_divisor has changed.
123 *
124 * (18/Feb/2003) Ian Abbott
125 * Fixed TIOCMGET handling to include state of DTR and RTS, the state
126 * of which are now saved by set_dtr() and set_rts().
127 * Fixed improper storage class for buf in set_dtr() and set_rts().
128 * Added FT232BM chip type and support for its extra baud rates (compared
129 * to FT8U232AM).
130 * Took account of special case divisor values for highest baud rates of
131 * FT8U232AM and FT232BM.
132 * For TIOCSSERIAL, forced alt_speed to 0 when ASYNC_SPD_CUST kludge used,
133 * as previous alt_speed setting is now stale.
134 * Moved startup code common between the startup routines for the
135 * different chip types into a common subroutine.
136 *
137 * (17/Feb/2003) Bill Ryder
138 * Added write urb buffer pool on a per device basis
139 * Added more checking for open file on callbacks (fixed OOPS)
140 * Added CrystalFontz 632 and 634 PIDs
141 * (thanx to CrystalFontz for the sample devices - they flushed out
142 * some driver bugs)
143 * Minor debugging message changes
144 * Added throttle, unthrottle and chars_in_buffer functions
145 * Fixed FTDI_SIO (the original device) bug
146 * Fixed some shutdown handling
147 *
148 *
149 *
150 *
151 * (07/Jun/2002) Kuba Ober
152 * Changed FTDI_SIO_BASE_BAUD_TO_DIVISOR macro into ftdi_baud_to_divisor
153 * function. It was getting too complex.
154 * Fix the divisor calculation logic which was setting divisor of 0.125
155 * instead of 0.5 for fractional parts of divisor equal to 5/8, 6/8, 7/8.
156 * Also make it bump up the divisor to next integer in case of 7/8 - it's
157 * a better approximation.
158 *
159 * (25/Jul/2002) Bill Ryder inserted Dmitri's TIOCMIWAIT patch
160 * Not tested by me but it doesn't break anything I use.
161 *
162 * (04/Jan/2002) Kuba Ober
163 * Implemented 38400 baudrate kludge, where it can be substituted with other
164 * values. That's the only way to set custom baudrates.
165 * Implemented TIOCSSERIAL, TIOCGSERIAL ioctl's so that setserial is happy.
166 * FIXME: both baudrate things should eventually go to usbserial.c as other
167 * devices may need that functionality too. Actually, it can probably be
168 * merged in serial.c somehow - too many drivers repeat this code over
169 * and over.
170 * Fixed baudrate forgetfulness - open() used to reset baudrate to 9600 every time.
171 * Divisors for baudrates are calculated by a macro.
172 * Small code cleanups. Ugly whitespace changes for Plato's sake only ;-].
173 *
174 * (04/Nov/2001) Bill Ryder
175 * Fixed bug in read_bulk_callback where incorrect urb buffer was used.
176 * Cleaned up write offset calculation
177 * Added write_room since default values can be incorrect for sio
178 * Changed write_bulk_callback to use same queue_task as other drivers
179 * (the previous version caused panics)
180 * Removed port iteration code since the device only has one I/O port and it
181 * was wrong anyway.
182 *
183 * (31/May/2001) gkh
184 * Switched from using spinlock to a semaphore, which fixes lots of problems.
185 *
186 * (23/May/2001) Bill Ryder
187 * Added runtime debug patch (thanx Tyson D Sawyer).
188 * Cleaned up comments for 8U232
189 * Added parity, framing and overrun error handling
190 * Added receive break handling.
191 *
192 * (04/08/2001) gb
193 * Identify version on module load.
194 *
195 * (18/March/2001) Bill Ryder
196 * (Not released)
197 * Added send break handling. (requires kernel patch too)
198 * Fixed 8U232AM hardware RTS/CTS etc status reporting.
199 * Added flipbuf fix copied from generic device
200 *
201 * (12/3/2000) Bill Ryder
202 * Added support for 8U232AM device.
203 * Moved PID and VIDs into header file only.
204 * Turned on low-latency for the tty (device will do high baudrates)
205 * Added shutdown routine to close files when device removed.
206 * More debug and error message cleanups.
207 *
208 * (11/13/2000) Bill Ryder
209 * Added spinlock protected open code and close code.
210 * Multiple opens work (sort of - see webpage mentioned above).
211 * Cleaned up comments. Removed multiple PID/VID definitions.
212 * Factorised cts/dtr code
213 * Made use of __FUNCTION__ in dbg's
214 *
215 * (11/01/2000) Adam J. Richter
216 * usb_device_id table support
217 *
218 * (10/05/2000) gkh
219 * Fixed bug with urb->dev not being set properly, now that the usb
220 * core needs it.
221 *
222 * (09/11/2000) gkh
223 * Removed DEBUG #ifdefs with call to usb_serial_debug_data
224 *
225 * (07/19/2000) gkh
226 * Added module_init and module_exit functions to handle the fact that this
227 * driver is a loadable module now.
228 *
229 * (04/04/2000) Bill Ryder
230 * Fixed bugs in TCGET/TCSET ioctls (by removing them - they are
231 * handled elsewhere in the tty io driver chain).
232 *
233 * (03/30/2000) Bill Ryder
234 * Implemented lots of ioctls
235 * Fixed a race condition in write
236 * Changed some dbg's to errs
237 *
238 * (03/26/2000) gkh
239 * Split driver up into device specific pieces.
240 *
241 */
242
243 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
244 /* Thanx to FTDI for so kindly providing details of the protocol required */
245 /* to talk to the device */
246 /* Thanx to gkh and the rest of the usb dev group for all code I have assimilated :-) */
247
248 #include <linux/config.h>
249 #include <linux/kernel.h>
250 #include <linux/errno.h>
251 #include <linux/init.h>
252 #include <linux/slab.h>
253 #include <linux/tty.h>
254 #include <linux/tty_driver.h>
255 #include <linux/tty_flip.h>
256 #include <linux/module.h>
257 #include <linux/spinlock.h>
258 #include <asm/uaccess.h>
259 #include <linux/usb.h>
260 #include <linux/serial.h>
261 #include "usb-serial.h"
262 #include "ftdi_sio.h"
263
264 /*
265 * Version Information
266 */
267 #define DRIVER_VERSION "v1.4.1"
268 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
269 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
270
271 static int debug;
272
273 static struct usb_device_id id_table_sio [] = {
274 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
275 { } /* Terminating entry */
276 };
277
278 /*
279 * The 8U232AM has the same API as the sio except for:
280 * - it can support MUCH higher baudrates; up to:
281 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
282 * o 230400 at 12MHz
283 * so .. 8U232AM's baudrate setting codes are different
284 * - it has a two byte status code.
285 * - it returns characters every 16ms (the FTDI does it every 40ms)
286 *
287 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
288 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
289 * combinations in both tables.
290 * FIXME: perhaps bcdDevice can also identify 12MHz devices, but I don't know
291 * if those ever went into mass production. [Ian Abbott]
292 */
293
294
295 static struct usb_device_id id_table_8U232AM [] = {
296 { USB_DEVICE_VER(FTDI_VID, FTDI_IRTRANS_PID, 0, 0x3ff) },
297 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_PID, 0, 0x3ff) },
298 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_ALT_PID, 0, 0x3ff) },
299 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_ALT_ALT_PID, 0, 0x3ff) },
300 { USB_DEVICE_VER(FTDI_VID, FTDI_RELAIS_PID, 0, 0x3ff) },
301 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
302 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
303 { USB_DEVICE_VER(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID, 0, 0x3ff) },
304 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_632_PID, 0, 0x3ff) },
305 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_634_PID, 0, 0x3ff) },
306 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_547_PID, 0, 0x3ff) },
307 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_633_PID, 0, 0x3ff) },
308 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_631_PID, 0, 0x3ff) },
309 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_635_PID, 0, 0x3ff) },
310 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_640_PID, 0, 0x3ff) },
311 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_642_PID, 0, 0x3ff) },
312 { USB_DEVICE_VER(FTDI_VID, FTDI_VNHCPCUSB_D_PID, 0, 0x3ff) },
313 { USB_DEVICE_VER(FTDI_VID, FTDI_DSS20_PID, 0, 0x3ff) },
314 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2101_PID, 0, 0x3ff) },
315 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2102_PID, 0, 0x3ff) },
316 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2103_PID, 0, 0x3ff) },
317 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2104_PID, 0, 0x3ff) },
318 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_1_PID, 0, 0x3ff) },
319 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_2_PID, 0, 0x3ff) },
320 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_1_PID, 0, 0x3ff) },
321 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_2_PID, 0, 0x3ff) },
322 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_1_PID, 0, 0x3ff) },
323 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_2_PID, 0, 0x3ff) },
324 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_1_PID, 0, 0x3ff) },
325 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_2_PID, 0, 0x3ff) },
326 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_3_PID, 0, 0x3ff) },
327 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_4_PID, 0, 0x3ff) },
328 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_1_PID, 0, 0x3ff) },
329 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_2_PID, 0, 0x3ff) },
330 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_3_PID, 0, 0x3ff) },
331 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_4_PID, 0, 0x3ff) },
332 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_1_PID, 0, 0x3ff) },
333 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_2_PID, 0, 0x3ff) },
334 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_3_PID, 0, 0x3ff) },
335 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_4_PID, 0, 0x3ff) },
336 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_1_PID, 0, 0x3ff) },
337 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_2_PID, 0, 0x3ff) },
338 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_3_PID, 0, 0x3ff) },
339 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_4_PID, 0, 0x3ff) },
340 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_5_PID, 0, 0x3ff) },
341 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_6_PID, 0, 0x3ff) },
342 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_7_PID, 0, 0x3ff) },
343 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_8_PID, 0, 0x3ff) },
344 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_1_PID, 0, 0x3ff) },
345 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_2_PID, 0, 0x3ff) },
346 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_3_PID, 0, 0x3ff) },
347 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_4_PID, 0, 0x3ff) },
348 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_5_PID, 0, 0x3ff) },
349 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_6_PID, 0, 0x3ff) },
350 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_7_PID, 0, 0x3ff) },
351 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_8_PID, 0, 0x3ff) },
352 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_1_PID, 0, 0x3ff) },
353 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_2_PID, 0, 0x3ff) },
354 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_3_PID, 0, 0x3ff) },
355 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_4_PID, 0, 0x3ff) },
356 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_5_PID, 0, 0x3ff) },
357 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_6_PID, 0, 0x3ff) },
358 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_7_PID, 0, 0x3ff) },
359 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_8_PID, 0, 0x3ff) },
360 { USB_DEVICE_VER(IDTECH_VID, IDTECH_IDT1221U_PID, 0, 0x3ff) },
361 { USB_DEVICE_VER(OCT_VID, OCT_US101_PID, 0, 0x3ff) },
362 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_1, 0, 0x3ff) },
363 { USB_DEVICE_VER(FTDI_VID, PROTEGO_R2X0, 0, 0x3ff) },
364 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_3, 0, 0x3ff) },
365 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_4, 0, 0x3ff) },
366 { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UO100_PID, 0, 0x3ff) },
367 { USB_DEVICE_VER(FTDI_VID, INSIDE_ACCESSO, 0, 0x3ff) },
368 { USB_DEVICE_VER(INTREPID_VID, INTREPID_VALUECAN_PID, 0, 0x3ff) },
369 { USB_DEVICE_VER(INTREPID_VID, INTREPID_NEOVI_PID, 0, 0x3ff) },
370 { USB_DEVICE_VER(FALCOM_VID, FALCOM_TWIST_PID, 0, 0x3ff) },
371 { USB_DEVICE_VER(FTDI_VID, FTDI_SUUNTO_SPORTS_PID, 0, 0x3ff) },
372 { USB_DEVICE_VER(FTDI_RM_VID, FTDI_RMCANVIEW_PID, 0, 0x3ff) },
373 { USB_DEVICE_VER(BANDB_VID, BANDB_USOTL4_PID, 0, 0x3ff) },
374 { USB_DEVICE_VER(BANDB_VID, BANDB_USTL4_PID, 0, 0x3ff) },
375 { USB_DEVICE_VER(BANDB_VID, BANDB_USO9ML2_PID, 0, 0x3ff) },
376 { USB_DEVICE_VER(FTDI_VID, EVER_ECO_PRO_CDS, 0, 0x3ff) },
377 { } /* Terminating entry */
378 };
379
380
381 static struct usb_device_id id_table_FT232BM [] = {
382 { USB_DEVICE_VER(FTDI_VID, FTDI_IRTRANS_PID, 0x400, 0xffff) },
383 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_PID, 0x400, 0xffff) },
384 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_ALT_PID, 0x400, 0xffff) },
385 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_ALT_ALT_PID, 0x400, 0xffff) },
386 { USB_DEVICE_VER(FTDI_VID, FTDI_RELAIS_PID, 0x400, 0xffff) },
387 { USB_DEVICE_VER(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID, 0x400, 0xffff) },
388 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_632_PID, 0x400, 0xffff) },
389 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_634_PID, 0x400, 0xffff) },
390 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_547_PID, 0x400, 0xffff) },
391 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_633_PID, 0x400, 0xffff) },
392 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_631_PID, 0x400, 0xffff) },
393 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_635_PID, 0x400, 0xffff) },
394 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_640_PID, 0x400, 0xffff) },
395 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_642_PID, 0x400, 0xffff) },
396 { USB_DEVICE_VER(FTDI_VID, FTDI_VNHCPCUSB_D_PID, 0x400, 0xffff) },
397 { USB_DEVICE_VER(FTDI_VID, FTDI_DSS20_PID, 0x400, 0xffff) },
398 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_0_PID, 0x400, 0xffff) },
399 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_1_PID, 0x400, 0xffff) },
400 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_2_PID, 0x400, 0xffff) },
401 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_3_PID, 0x400, 0xffff) },
402 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_4_PID, 0x400, 0xffff) },
403 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_5_PID, 0x400, 0xffff) },
404 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_6_PID, 0x400, 0xffff) },
405 { USB_DEVICE_VER(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID, 0x400, 0xffff) },
406 { USB_DEVICE_VER(FTDI_VID, FTDI_PIEGROUP_PID, 0x400, 0xffff) },
407 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2101_PID, 0x400, 0xffff) },
408 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2102_PID, 0x400, 0xffff) },
409 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2103_PID, 0x400, 0xffff) },
410 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2104_PID, 0x400, 0xffff) },
411 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_1_PID, 0x400, 0xffff) },
412 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_2_PID, 0x400, 0xffff) },
413 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_1_PID, 0x400, 0xffff) },
414 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_2_PID, 0x400, 0xffff) },
415 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_1_PID, 0x400, 0xffff) },
416 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_2_PID, 0x400, 0xffff) },
417 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_1_PID, 0x400, 0xffff) },
418 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_2_PID, 0x400, 0xffff) },
419 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_3_PID, 0x400, 0xffff) },
420 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_4_PID, 0x400, 0xffff) },
421 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_1_PID, 0x400, 0xffff) },
422 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_2_PID, 0x400, 0xffff) },
423 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_3_PID, 0x400, 0xffff) },
424 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_4_PID, 0x400, 0xffff) },
425 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_1_PID, 0x400, 0xffff) },
426 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_2_PID, 0x400, 0xffff) },
427 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_3_PID, 0x400, 0xffff) },
428 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_4_PID, 0x400, 0xffff) },
429 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_1_PID, 0x400, 0xffff) },
430 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_2_PID, 0x400, 0xffff) },
431 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_3_PID, 0x400, 0xffff) },
432 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_4_PID, 0x400, 0xffff) },
433 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_5_PID, 0x400, 0xffff) },
434 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_6_PID, 0x400, 0xffff) },
435 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_7_PID, 0x400, 0xffff) },
436 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_8_PID, 0x400, 0xffff) },
437 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_1_PID, 0x400, 0xffff) },
438 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_2_PID, 0x400, 0xffff) },
439 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_3_PID, 0x400, 0xffff) },
440 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_4_PID, 0x400, 0xffff) },
441 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_5_PID, 0x400, 0xffff) },
442 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_6_PID, 0x400, 0xffff) },
443 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_7_PID, 0x400, 0xffff) },
444 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_8_PID, 0x400, 0xffff) },
445 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_1_PID, 0x400, 0xffff) },
446 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_2_PID, 0x400, 0xffff) },
447 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_3_PID, 0x400, 0xffff) },
448 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_4_PID, 0x400, 0xffff) },
449 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_5_PID, 0x400, 0xffff) },
450 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_6_PID, 0x400, 0xffff) },
451 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_7_PID, 0x400, 0xffff) },
452 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_8_PID, 0x400, 0xffff) },
453 { USB_DEVICE_VER(IDTECH_VID, IDTECH_IDT1221U_PID, 0x400, 0xffff) },
454 { USB_DEVICE_VER(OCT_VID, OCT_US101_PID, 0x400, 0xffff) },
455 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_1, 0x400, 0xffff) },
456 { USB_DEVICE_VER(FTDI_VID, PROTEGO_R2X0, 0x400, 0xffff) },
457 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_3, 0x400, 0xffff) },
458 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_4, 0x400, 0xffff) },
459 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E808_PID, 0x400, 0xffff) },
460 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E809_PID, 0x400, 0xffff) },
461 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80A_PID, 0x400, 0xffff) },
462 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80B_PID, 0x400, 0xffff) },
463 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80C_PID, 0x400, 0xffff) },
464 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80D_PID, 0x400, 0xffff) },
465 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80E_PID, 0x400, 0xffff) },
466 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80F_PID, 0x400, 0xffff) },
467 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E888_PID, 0x400, 0xffff) },
468 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E889_PID, 0x400, 0xffff) },
469 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88A_PID, 0x400, 0xffff) },
470 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88B_PID, 0x400, 0xffff) },
471 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88C_PID, 0x400, 0xffff) },
472 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88D_PID, 0x400, 0xffff) },
473 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88E_PID, 0x400, 0xffff) },
474 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88F_PID, 0x400, 0xffff) },
475 { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UO100_PID, 0x400, 0xffff) },
476 { USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) },
477 { USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) },
478 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) },
479 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_1_PID, 0x400, 0xffff) },
480 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_2_PID, 0x400, 0xffff) },
481 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
482 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
483 { USB_DEVICE_VER(FTDI_VID, INSIDE_ACCESSO, 0x400, 0xffff) },
484 { USB_DEVICE_VER(INTREPID_VID, INTREPID_VALUECAN_PID, 0x400, 0xffff) },
485 { USB_DEVICE_VER(INTREPID_VID, INTREPID_NEOVI_PID, 0x400, 0xffff) },
486 { USB_DEVICE_VER(FALCOM_VID, FALCOM_TWIST_PID, 0x400, 0xffff) },
487 { USB_DEVICE_VER(FTDI_VID, FTDI_SUUNTO_SPORTS_PID, 0x400, 0xffff) },
488 { USB_DEVICE_VER(FTDI_RM_VID, FTDI_RMCANVIEW_PID, 0x400, 0xffff) },
489 { USB_DEVICE_VER(BANDB_VID, BANDB_USOTL4_PID, 0x400, 0xffff) },
490 { USB_DEVICE_VER(BANDB_VID, BANDB_USTL4_PID, 0x400, 0xffff) },
491 { USB_DEVICE_VER(BANDB_VID, BANDB_USO9ML2_PID, 0x400, 0xffff) },
492 { USB_DEVICE_VER(FTDI_VID, EVER_ECO_PRO_CDS, 0x400, 0xffff) },
493 { } /* Terminating entry */
494 };
495
496
497 static struct usb_device_id id_table_USB_UIRT [] = {
498 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID) },
499 { } /* Terminating entry */
500 };
501
502
503 static struct usb_device_id id_table_HE_TIRA1 [] = {
504 { USB_DEVICE_VER(FTDI_VID, FTDI_HE_TIRA1_PID, 0x400, 0xffff) },
505 { } /* Terminating entry */
506 };
507
508
509 static struct usb_device_id id_table_FT2232C[] = {
510 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
511 { } /* Terminating entry */
512 };
513
514
515 static struct usb_device_id id_table_combined [] = {
516 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
519 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_ALT_PID) },
521 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
522 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
523 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
524 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
528 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
529 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
534 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
536 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_0_PID, 0x400, 0xffff) },
537 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_1_PID, 0x400, 0xffff) },
538 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_2_PID, 0x400, 0xffff) },
539 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_3_PID, 0x400, 0xffff) },
540 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_4_PID, 0x400, 0xffff) },
541 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_5_PID, 0x400, 0xffff) },
542 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_6_PID, 0x400, 0xffff) },
543 { USB_DEVICE_VER(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID, 0x400, 0xffff) },
544 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
545 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
546 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
547 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
548 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
549 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
550 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
551 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
552 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
553 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
554 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
555 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
556 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
557 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
558 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
559 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
560 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
561 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
562 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
563 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
564 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
565 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
566 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
567 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
568 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
569 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
570 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
571 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
572 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
573 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
574 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
575 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
576 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
577 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
578 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
579 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
580 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
581 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
582 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
583 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
584 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
585 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
586 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
587 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
588 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
589 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
590 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
591 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
592 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
593 { USB_DEVICE_VER(FTDI_VID, FTDI_HE_TIRA1_PID, 0x400, 0xffff) },
594 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID) },
595 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
596 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
597 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
598 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
599 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
600 { USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) },
601 { USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) },
602 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) },
603 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_1_PID, 0x400, 0xffff) },
604 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_2_PID, 0x400, 0xffff) },
605 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
606 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
607 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
608 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
609 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
610 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
611 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
612 { USB_DEVICE(FTDI_RM_VID, FTDI_RMCANVIEW_PID) },
613 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
614 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
615 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
616 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
617 { } /* Terminating entry */
618 };
619
620 MODULE_DEVICE_TABLE (usb, id_table_combined);
621
622 static struct usb_driver ftdi_driver = {
623 .name = "ftdi_sio",
624 .probe = usb_serial_probe,
625 .disconnect = usb_serial_disconnect,
626 .id_table = id_table_combined,
627 };
628
629 static char *ftdi_chip_name[] = {
630 [SIO] = "SIO", /* the serial part of FT8U100AX */
631 [FT8U232AM] = "FT8U232AM",
632 [FT232BM] = "FT232BM",
633 [FT2232C] = "FT2232C",
634 };
635
636
637 /* Constants for read urb and write urb */
638 #define BUFSZ 512
639 #define PKTSZ 64
640
641 /* rx_flags */
642 #define THROTTLED 0x01
643 #define ACTUALLY_THROTTLED 0x02
644
645 struct ftdi_private {
646 ftdi_chip_type_t chip_type;
647 /* type of the device, either SIO or FT8U232AM */
648 int baud_base; /* baud base clock for divisor setting */
649 int custom_divisor; /* custom_divisor kludge, this is for baud_base (different from what goes to the chip!) */
650 __u16 last_set_data_urb_value ;
651 /* the last data state set - needed for doing a break */
652 int write_offset; /* This is the offset in the usb data block to write the serial data -
653 * it is different between devices
654 */
655 int flags; /* some ASYNC_xxxx flags are supported */
656 unsigned long last_dtr_rts; /* saved modem control outputs */
657 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
658 char prev_status, diff_status; /* Used for TIOCMIWAIT */
659 __u8 rx_flags; /* receive state flags (throttling) */
660 spinlock_t rx_lock; /* spinlock for receive state */
661
662 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
663
664 int force_baud; /* if non-zero, force the baud rate to this value */
665 int force_rtscts; /* if non-zero, force RTS-CTS to always be enabled */
666 };
667
668 /* Used for TIOCMIWAIT */
669 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
670 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
671 /* End TIOCMIWAIT */
672
673 #define FTDI_IMPL_ASYNC_FLAGS = ( ASYNC_SPD_HI | ASYNC_SPD_VHI \
674 ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP )
675
676 /* function prototypes for a FTDI serial converter */
677 static int ftdi_SIO_startup (struct usb_serial *serial);
678 static int ftdi_8U232AM_startup (struct usb_serial *serial);
679 static int ftdi_FT232BM_startup (struct usb_serial *serial);
680 static int ftdi_FT2232C_startup (struct usb_serial *serial);
681 static int ftdi_USB_UIRT_startup (struct usb_serial *serial);
682 static int ftdi_HE_TIRA1_startup (struct usb_serial *serial);
683 static void ftdi_shutdown (struct usb_serial *serial);
684 static int ftdi_open (struct usb_serial_port *port, struct file *filp);
685 static void ftdi_close (struct usb_serial_port *port, struct file *filp);
686 static int ftdi_write (struct usb_serial_port *port, const unsigned char *buf, int count);
687 static int ftdi_write_room (struct usb_serial_port *port);
688 static int ftdi_chars_in_buffer (struct usb_serial_port *port);
689 static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
690 static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
691 static void ftdi_process_read (struct usb_serial_port *port);
692 static void ftdi_set_termios (struct usb_serial_port *port, struct termios * old);
693 static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file);
694 static int ftdi_tiocmset (struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear);
695 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
696 static void ftdi_break_ctl (struct usb_serial_port *port, int break_state );
697 static void ftdi_throttle (struct usb_serial_port *port);
698 static void ftdi_unthrottle (struct usb_serial_port *port);
699
700 static unsigned short int ftdi_232am_baud_base_to_divisor (int baud, int base);
701 static unsigned short int ftdi_232am_baud_to_divisor (int baud);
702 static __u32 ftdi_232bm_baud_base_to_divisor (int baud, int base);
703 static __u32 ftdi_232bm_baud_to_divisor (int baud);
704
705 static struct usb_serial_device_type ftdi_SIO_device = {
706 .owner = THIS_MODULE,
707 .name = "FTDI SIO",
708 .id_table = id_table_sio,
709 .num_interrupt_in = 0,
710 .num_bulk_in = 1,
711 .num_bulk_out = 1,
712 .num_ports = 1,
713 .open = ftdi_open,
714 .close = ftdi_close,
715 .throttle = ftdi_throttle,
716 .unthrottle = ftdi_unthrottle,
717 .write = ftdi_write,
718 .write_room = ftdi_write_room,
719 .chars_in_buffer = ftdi_chars_in_buffer,
720 .read_bulk_callback = ftdi_read_bulk_callback,
721 .write_bulk_callback = ftdi_write_bulk_callback,
722 .tiocmget = ftdi_tiocmget,
723 .tiocmset = ftdi_tiocmset,
724 .ioctl = ftdi_ioctl,
725 .set_termios = ftdi_set_termios,
726 .break_ctl = ftdi_break_ctl,
727 .attach = ftdi_SIO_startup,
728 .shutdown = ftdi_shutdown,
729 };
730
731 static struct usb_serial_device_type ftdi_8U232AM_device = {
732 .owner = THIS_MODULE,
733 .name = "FTDI 8U232AM Compatible",
734 .id_table = id_table_8U232AM,
735 .num_interrupt_in = 0,
736 .num_bulk_in = 1,
737 .num_bulk_out = 1,
738 .num_ports = 1,
739 .open = ftdi_open,
740 .close = ftdi_close,
741 .throttle = ftdi_throttle,
742 .unthrottle = ftdi_unthrottle,
743 .write = ftdi_write,
744 .write_room = ftdi_write_room,
745 .chars_in_buffer = ftdi_chars_in_buffer,
746 .read_bulk_callback = ftdi_read_bulk_callback,
747 .write_bulk_callback = ftdi_write_bulk_callback,
748 .tiocmget = ftdi_tiocmget,
749 .tiocmset = ftdi_tiocmset,
750 .ioctl = ftdi_ioctl,
751 .set_termios = ftdi_set_termios,
752 .break_ctl = ftdi_break_ctl,
753 .attach = ftdi_8U232AM_startup,
754 .shutdown = ftdi_shutdown,
755 };
756
757 static struct usb_serial_device_type ftdi_FT232BM_device = {
758 .owner = THIS_MODULE,
759 .name = "FTDI FT232BM Compatible",
760 .id_table = id_table_FT232BM,
761 .num_interrupt_in = 0,
762 .num_bulk_in = 1,
763 .num_bulk_out = 1,
764 .num_ports = 1,
765 .open = ftdi_open,
766 .close = ftdi_close,
767 .throttle = ftdi_throttle,
768 .unthrottle = ftdi_unthrottle,
769 .write = ftdi_write,
770 .write_room = ftdi_write_room,
771 .chars_in_buffer = ftdi_chars_in_buffer,
772 .read_bulk_callback = ftdi_read_bulk_callback,
773 .write_bulk_callback = ftdi_write_bulk_callback,
774 .tiocmget = ftdi_tiocmget,
775 .tiocmset = ftdi_tiocmset,
776 .ioctl = ftdi_ioctl,
777 .set_termios = ftdi_set_termios,
778 .break_ctl = ftdi_break_ctl,
779 .attach = ftdi_FT232BM_startup,
780 .shutdown = ftdi_shutdown,
781 };
782
783 static struct usb_serial_device_type ftdi_FT2232C_device = {
784 .owner = THIS_MODULE,
785 .name = "FTDI FT2232C Compatible",
786 .id_table = id_table_FT2232C,
787 .num_interrupt_in = 0,
788 .num_bulk_in = 1,
789 .num_bulk_out = 1,
790 .num_ports = 1,
791 .open = ftdi_open,
792 .close = ftdi_close,
793 .throttle = ftdi_throttle,
794 .unthrottle = ftdi_unthrottle,
795 .write = ftdi_write,
796 .write_room = ftdi_write_room,
797 .chars_in_buffer = ftdi_chars_in_buffer,
798 .read_bulk_callback = ftdi_read_bulk_callback,
799 .write_bulk_callback = ftdi_write_bulk_callback,
800 .tiocmget = ftdi_tiocmget,
801 .tiocmset = ftdi_tiocmset,
802 .ioctl = ftdi_ioctl,
803 .set_termios = ftdi_set_termios,
804 .break_ctl = ftdi_break_ctl,
805 .attach = ftdi_FT2232C_startup,
806 .shutdown = ftdi_shutdown,
807 };
808
809 static struct usb_serial_device_type ftdi_USB_UIRT_device = {
810 .owner = THIS_MODULE,
811 .name = "USB-UIRT Infrared Tranceiver",
812 .id_table = id_table_USB_UIRT,
813 .num_interrupt_in = 0,
814 .num_bulk_in = 1,
815 .num_bulk_out = 1,
816 .num_ports = 1,
817 .open = ftdi_open,
818 .close = ftdi_close,
819 .throttle = ftdi_throttle,
820 .unthrottle = ftdi_unthrottle,
821 .write = ftdi_write,
822 .write_room = ftdi_write_room,
823 .chars_in_buffer = ftdi_chars_in_buffer,
824 .read_bulk_callback = ftdi_read_bulk_callback,
825 .write_bulk_callback = ftdi_write_bulk_callback,
826 .tiocmget = ftdi_tiocmget,
827 .tiocmset = ftdi_tiocmset,
828 .ioctl = ftdi_ioctl,
829 .set_termios = ftdi_set_termios,
830 .break_ctl = ftdi_break_ctl,
831 .attach = ftdi_USB_UIRT_startup,
832 .shutdown = ftdi_shutdown,
833 };
834
835 /* The TIRA1 is based on a FT232BM which requires a fixed baud rate of 100000
836 * and which requires RTS-CTS to be enabled. */
837 static struct usb_serial_device_type ftdi_HE_TIRA1_device = {
838 .owner = THIS_MODULE,
839 .name = "Home-Electronics TIRA-1 IR Transceiver",
840 .id_table = id_table_HE_TIRA1,
841 .num_interrupt_in = 0,
842 .num_bulk_in = 1,
843 .num_bulk_out = 1,
844 .num_ports = 1,
845 .open = ftdi_open,
846 .close = ftdi_close,
847 .throttle = ftdi_throttle,
848 .unthrottle = ftdi_unthrottle,
849 .write = ftdi_write,
850 .write_room = ftdi_write_room,
851 .chars_in_buffer = ftdi_chars_in_buffer,
852 .read_bulk_callback = ftdi_read_bulk_callback,
853 .write_bulk_callback = ftdi_write_bulk_callback,
854 .tiocmget = ftdi_tiocmget,
855 .tiocmset = ftdi_tiocmset,
856 .ioctl = ftdi_ioctl,
857 .set_termios = ftdi_set_termios,
858 .break_ctl = ftdi_break_ctl,
859 .attach = ftdi_HE_TIRA1_startup,
860 .shutdown = ftdi_shutdown,
861 };
862
863
864
865 #define WDR_TIMEOUT 5000 /* default urb timeout */
866
867 /* High and low are for DTR, RTS etc etc */
868 #define HIGH 1
869 #define LOW 0
870
871 /*
872 * ***************************************************************************
873 * Utlity functions
874 * ***************************************************************************
875 */
876
877 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
878 {
879 unsigned short int divisor;
880 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
881 if ((divisor3 & 0x7) == 7) divisor3 ++; // round x.7/8 up to x+1
882 divisor = divisor3 >> 3;
883 divisor3 &= 0x7;
884 if (divisor3 == 1) divisor |= 0xc000; else // 0.125
885 if (divisor3 >= 4) divisor |= 0x4000; else // 0.5
886 if (divisor3 != 0) divisor |= 0x8000; // 0.25
887 if (divisor == 1) divisor = 0; /* special case for maximum baud rate */
888 return divisor;
889 }
890
891 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
892 {
893 return(ftdi_232am_baud_base_to_divisor(baud, 48000000));
894 }
895
896 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
897 {
898 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
899 __u32 divisor;
900 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
901 divisor = divisor3 >> 3;
902 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
903 /* Deal with special cases for highest baud rates. */
904 if (divisor == 1) divisor = 0; else // 1.0
905 if (divisor == 0x4001) divisor = 1; // 1.5
906 return divisor;
907 }
908
909 static __u32 ftdi_232bm_baud_to_divisor(int baud)
910 {
911 return(ftdi_232bm_baud_base_to_divisor(baud, 48000000));
912 }
913
914 static int set_rts(struct usb_serial_port *port, int high_or_low)
915 {
916 struct ftdi_private *priv = usb_get_serial_port_data(port);
917 char *buf;
918 unsigned ftdi_high_or_low;
919 int rv;
920
921 buf = kmalloc(1, GFP_NOIO);
922 if (!buf)
923 return -ENOMEM;
924
925 if (high_or_low) {
926 ftdi_high_or_low = FTDI_SIO_SET_RTS_HIGH;
927 priv->last_dtr_rts |= TIOCM_RTS;
928 } else {
929 ftdi_high_or_low = FTDI_SIO_SET_RTS_LOW;
930 priv->last_dtr_rts &= ~TIOCM_RTS;
931 }
932 rv = usb_control_msg(port->serial->dev,
933 usb_sndctrlpipe(port->serial->dev, 0),
934 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
935 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
936 ftdi_high_or_low, priv->interface,
937 buf, 0, WDR_TIMEOUT);
938
939 kfree(buf);
940 return rv;
941 }
942
943
944 static int set_dtr(struct usb_serial_port *port, int high_or_low)
945 {
946 struct ftdi_private *priv = usb_get_serial_port_data(port);
947 char *buf;
948 unsigned ftdi_high_or_low;
949 int rv;
950
951 buf = kmalloc(1, GFP_NOIO);
952 if (!buf)
953 return -ENOMEM;
954
955 if (high_or_low) {
956 ftdi_high_or_low = FTDI_SIO_SET_DTR_HIGH;
957 priv->last_dtr_rts |= TIOCM_DTR;
958 } else {
959 ftdi_high_or_low = FTDI_SIO_SET_DTR_LOW;
960 priv->last_dtr_rts &= ~TIOCM_DTR;
961 }
962 rv = usb_control_msg(port->serial->dev,
963 usb_sndctrlpipe(port->serial->dev, 0),
964 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
965 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
966 ftdi_high_or_low, priv->interface,
967 buf, 0, WDR_TIMEOUT);
968
969 kfree(buf);
970 return rv;
971 }
972
973
974 static __u32 get_ftdi_divisor(struct usb_serial_port * port);
975
976
977 static int change_speed(struct usb_serial_port *port)
978 {
979 struct ftdi_private *priv = usb_get_serial_port_data(port);
980 char *buf;
981 __u16 urb_value;
982 __u16 urb_index;
983 __u32 urb_index_value;
984 int rv;
985
986 buf = kmalloc(1, GFP_NOIO);
987 if (!buf)
988 return -ENOMEM;
989
990 urb_index_value = get_ftdi_divisor(port);
991 urb_value = (__u16)urb_index_value;
992 urb_index = (__u16)(urb_index_value >> 16);
993 if (priv->interface) { /* FT2232C */
994 urb_index = (__u16)((urb_index << 8) | priv->interface);
995 }
996
997 rv = usb_control_msg(port->serial->dev,
998 usb_sndctrlpipe(port->serial->dev, 0),
999 FTDI_SIO_SET_BAUDRATE_REQUEST,
1000 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1001 urb_value, urb_index,
1002 buf, 0, 100);
1003
1004 kfree(buf);
1005 return rv;
1006 }
1007
1008
1009 static __u32 get_ftdi_divisor(struct usb_serial_port * port)
1010 { /* get_ftdi_divisor */
1011 struct ftdi_private *priv = usb_get_serial_port_data(port);
1012 __u32 div_value = 0;
1013 int div_okay = 1;
1014 int baud;
1015
1016 /*
1017 * The logic involved in setting the baudrate can be cleanly split in 3 steps.
1018 * Obtaining the actual baud rate is a little tricky since unix traditionally
1019 * somehow ignored the possibility to set non-standard baud rates.
1020 * 1. Standard baud rates are set in tty->termios->c_cflag
1021 * 2. If these are not enough, you can set any speed using alt_speed as follows:
1022 * - set tty->termios->c_cflag speed to B38400
1023 * - set your real speed in tty->alt_speed; it gets ignored when
1024 * alt_speed==0, (or)
1025 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
1026 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], this just
1027 * sets alt_speed to (HI: 57600, VHI: 115200, SHI: 230400, WARP: 460800)
1028 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1029 * 3. You can also set baud rate by setting custom divisor as follows
1030 * - set tty->termios->c_cflag speed to B38400
1031 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
1032 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1033 * o custom_divisor set to baud_base / your_new_baudrate
1034 * ** Step 3 is done courtesy of code borrowed from serial.c - I should really
1035 * spend some time and separate+move this common code to serial.c, it is
1036 * replicated in nearly every serial driver you see.
1037 */
1038
1039 /* 1. Get the baud rate from the tty settings, this observes alt_speed hack */
1040
1041 baud = tty_get_baud_rate(port->tty);
1042 dbg("%s - tty_get_baud_rate reports speed %d", __FUNCTION__, baud);
1043
1044 /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */
1045
1046 if (baud == 38400 &&
1047 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1048 (priv->custom_divisor)) {
1049 baud = priv->baud_base / priv->custom_divisor;
1050 dbg("%s - custom divisor %d sets baud rate to %d", __FUNCTION__, priv->custom_divisor, baud);
1051 }
1052
1053 /* 3. Convert baudrate to device-specific divisor */
1054
1055 if (!baud) baud = 9600;
1056 switch(priv->chip_type) {
1057 case SIO: /* SIO chip */
1058 switch(baud) {
1059 case 300: div_value = ftdi_sio_b300; break;
1060 case 600: div_value = ftdi_sio_b600; break;
1061 case 1200: div_value = ftdi_sio_b1200; break;
1062 case 2400: div_value = ftdi_sio_b2400; break;
1063 case 4800: div_value = ftdi_sio_b4800; break;
1064 case 9600: div_value = ftdi_sio_b9600; break;
1065 case 19200: div_value = ftdi_sio_b19200; break;
1066 case 38400: div_value = ftdi_sio_b38400; break;
1067 case 57600: div_value = ftdi_sio_b57600; break;
1068 case 115200: div_value = ftdi_sio_b115200; break;
1069 } /* baud */
1070 if (div_value == 0) {
1071 dbg("%s - Baudrate (%d) requested is not supported", __FUNCTION__, baud);
1072 div_value = ftdi_sio_b9600;
1073 div_okay = 0;
1074 }
1075 break;
1076 case FT8U232AM: /* 8U232AM chip */
1077 if (baud <= 3000000) {
1078 div_value = ftdi_232am_baud_to_divisor(baud);
1079 } else {
1080 dbg("%s - Baud rate too high!", __FUNCTION__);
1081 div_value = ftdi_232am_baud_to_divisor(9600);
1082 div_okay = 0;
1083 }
1084 break;
1085 case FT232BM: /* FT232BM chip */
1086 case FT2232C: /* FT2232C chip */
1087 if (baud <= 3000000) {
1088 div_value = ftdi_232bm_baud_to_divisor(baud);
1089 } else {
1090 dbg("%s - Baud rate too high!", __FUNCTION__);
1091 div_value = ftdi_232bm_baud_to_divisor(9600);
1092 div_okay = 0;
1093 }
1094 break;
1095 } /* priv->chip_type */
1096
1097 if (div_okay) {
1098 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1099 __FUNCTION__, baud, (unsigned long)div_value,
1100 ftdi_chip_name[priv->chip_type]);
1101 }
1102
1103 return(div_value);
1104 }
1105
1106
1107 static int get_serial_info(struct usb_serial_port * port, struct serial_struct __user * retinfo)
1108 {
1109 struct ftdi_private *priv = usb_get_serial_port_data(port);
1110 struct serial_struct tmp;
1111
1112 if (!retinfo)
1113 return -EFAULT;
1114 memset(&tmp, 0, sizeof(tmp));
1115 tmp.flags = priv->flags;
1116 tmp.baud_base = priv->baud_base;
1117 tmp.custom_divisor = priv->custom_divisor;
1118 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1119 return -EFAULT;
1120 return 0;
1121 } /* get_serial_info */
1122
1123
1124 static int set_serial_info(struct usb_serial_port * port, struct serial_struct __user * newinfo)
1125 { /* set_serial_info */
1126 struct ftdi_private *priv = usb_get_serial_port_data(port);
1127 struct serial_struct new_serial;
1128 struct ftdi_private old_priv;
1129
1130 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1131 return -EFAULT;
1132 old_priv = * priv;
1133
1134 /* Do error checking and permission checking */
1135
1136 if (!capable(CAP_SYS_ADMIN)) {
1137 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1138 (priv->flags & ~ASYNC_USR_MASK)))
1139 return -EPERM;
1140 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1141 (new_serial.flags & ASYNC_USR_MASK));
1142 priv->custom_divisor = new_serial.custom_divisor;
1143 goto check_and_exit;
1144 }
1145
1146 if ((new_serial.baud_base != priv->baud_base) &&
1147 (new_serial.baud_base < 9600))
1148 return -EINVAL;
1149
1150 /* Make the changes - these are privileged changes! */
1151
1152 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1153 (new_serial.flags & ASYNC_FLAGS));
1154 priv->custom_divisor = new_serial.custom_divisor;
1155
1156 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1157
1158 check_and_exit:
1159 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1160 (priv->flags & ASYNC_SPD_MASK)) {
1161 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1162 port->tty->alt_speed = 57600;
1163 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1164 port->tty->alt_speed = 115200;
1165 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1166 port->tty->alt_speed = 230400;
1167 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1168 port->tty->alt_speed = 460800;
1169 else
1170 port->tty->alt_speed = 0;
1171 }
1172 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1173 (priv->flags & ASYNC_SPD_MASK)) ||
1174 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1175 (old_priv.custom_divisor != priv->custom_divisor))) {
1176 change_speed(port);
1177 }
1178
1179 return (0);
1180
1181 } /* set_serial_info */
1182
1183
1184 /*
1185 * ***************************************************************************
1186 * Sysfs Attribute
1187 * ***************************************************************************
1188 */
1189
1190 static ssize_t show_latency_timer(struct device *dev, char *buf)
1191 {
1192 struct usb_serial_port *port = to_usb_serial_port(dev);
1193 struct ftdi_private *priv = usb_get_serial_port_data(port);
1194 struct usb_device *udev;
1195 unsigned short latency = 0;
1196 int rv = 0;
1197
1198 udev = to_usb_device(dev);
1199
1200 dbg("%s",__FUNCTION__);
1201
1202 rv = usb_control_msg(udev,
1203 usb_rcvctrlpipe(udev, 0),
1204 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1205 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1206 0, priv->interface,
1207 (char*) &latency, 1, WDR_TIMEOUT);
1208
1209 if (rv < 0) {
1210 dev_err(dev, "Unable to read latency timer: %i", rv);
1211 return -EIO;
1212 }
1213 return sprintf(buf, "%i\n", latency);
1214 }
1215
1216 /* Write a new value of the latency timer, in units of milliseconds. */
1217 static ssize_t store_latency_timer(struct device *dev, const char *valbuf,
1218 size_t count)
1219 {
1220 struct usb_serial_port *port = to_usb_serial_port(dev);
1221 struct ftdi_private *priv = usb_get_serial_port_data(port);
1222 struct usb_device *udev;
1223 char buf[1];
1224 int v = simple_strtoul(valbuf, NULL, 10);
1225 int rv = 0;
1226
1227 udev = to_usb_device(dev);
1228
1229 dbg("%s: setting latency timer = %i", __FUNCTION__, v);
1230
1231 rv = usb_control_msg(udev,
1232 usb_sndctrlpipe(udev, 0),
1233 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1234 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1235 v, priv->interface,
1236 buf, 0, WDR_TIMEOUT);
1237
1238 if (rv < 0) {
1239 dev_err(dev, "Unable to write latency timer: %i", rv);
1240 return -EIO;
1241 }
1242
1243 return count;
1244 }
1245
1246 /* Write an event character directly to the FTDI register. The ASCII
1247 value is in the low 8 bits, with the enable bit in the 9th bit. */
1248 static ssize_t store_event_char(struct device *dev, const char *valbuf,
1249 size_t count)
1250 {
1251 struct usb_serial_port *port = to_usb_serial_port(dev);
1252 struct ftdi_private *priv = usb_get_serial_port_data(port);
1253 struct usb_device *udev;
1254 char buf[1];
1255 int v = simple_strtoul(valbuf, NULL, 10);
1256 int rv = 0;
1257
1258 udev = to_usb_device(dev);
1259
1260 dbg("%s: setting event char = %i", __FUNCTION__, v);
1261
1262 rv = usb_control_msg(udev,
1263 usb_sndctrlpipe(udev, 0),
1264 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1265 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1266 v, priv->interface,
1267 buf, 0, WDR_TIMEOUT);
1268
1269 if (rv < 0) {
1270 dbg("Unable to write event character: %i", rv);
1271 return -EIO;
1272 }
1273
1274 return count;
1275 }
1276
1277 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, store_latency_timer);
1278 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1279
1280 static void create_sysfs_attrs(struct usb_serial *serial)
1281 {
1282 struct ftdi_private *priv;
1283 struct usb_device *udev;
1284
1285 dbg("%s",__FUNCTION__);
1286
1287 priv = usb_get_serial_port_data(serial->port[0]);
1288 udev = serial->dev;
1289
1290 /* XXX I've no idea if the original SIO supports the event_char
1291 * sysfs parameter, so I'm playing it safe. */
1292 if (priv->chip_type != SIO) {
1293 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1294 device_create_file(&udev->dev, &dev_attr_event_char);
1295 if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) {
1296 device_create_file(&udev->dev, &dev_attr_latency_timer);
1297 }
1298 }
1299 }
1300
1301 static void remove_sysfs_attrs(struct usb_serial *serial)
1302 {
1303 struct ftdi_private *priv;
1304 struct usb_device *udev;
1305
1306 dbg("%s",__FUNCTION__);
1307
1308 priv = usb_get_serial_port_data(serial->port[0]);
1309 udev = serial->dev;
1310
1311 /* XXX see create_sysfs_attrs */
1312 if (priv->chip_type != SIO) {
1313 device_remove_file(&udev->dev, &dev_attr_event_char);
1314 if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) {
1315 device_remove_file(&udev->dev, &dev_attr_latency_timer);
1316 }
1317 }
1318
1319 }
1320
1321 /*
1322 * ***************************************************************************
1323 * FTDI driver specific functions
1324 * ***************************************************************************
1325 */
1326
1327 /* Common startup subroutine */
1328 /* Called from ftdi_SIO_startup, etc. */
1329 static int ftdi_common_startup (struct usb_serial *serial)
1330 {
1331 struct usb_serial_port *port = serial->port[0];
1332 struct ftdi_private *priv;
1333
1334 dbg("%s",__FUNCTION__);
1335
1336 priv = kmalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1337 if (!priv){
1338 err("%s- kmalloc(%Zd) failed.", __FUNCTION__, sizeof(struct ftdi_private));
1339 return -ENOMEM;
1340 }
1341 memset(priv, 0, sizeof(*priv));
1342
1343 spin_lock_init(&priv->rx_lock);
1344 init_waitqueue_head(&priv->delta_msr_wait);
1345 /* This will push the characters through immediately rather
1346 than queue a task to deliver them */
1347 priv->flags = ASYNC_LOW_LATENCY;
1348
1349 /* Increase the size of read buffers */
1350 if (port->bulk_in_buffer) {
1351 kfree (port->bulk_in_buffer);
1352 }
1353 port->bulk_in_buffer = kmalloc (BUFSZ, GFP_KERNEL);
1354 if (!port->bulk_in_buffer) {
1355 kfree (priv);
1356 return -ENOMEM;
1357 }
1358 if (port->read_urb) {
1359 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1360 port->read_urb->transfer_buffer_length = BUFSZ;
1361 }
1362
1363 /* Free port's existing write urb and transfer buffer. */
1364 if (port->write_urb) {
1365 usb_free_urb (port->write_urb);
1366 port->write_urb = NULL;
1367 }
1368 if (port->bulk_out_buffer) {
1369 kfree (port->bulk_out_buffer);
1370 port->bulk_out_buffer = NULL;
1371 }
1372
1373 usb_set_serial_port_data(serial->port[0], priv);
1374
1375 return (0);
1376 }
1377
1378
1379 /* Startup for the SIO chip */
1380 /* Called from usbserial:serial_probe */
1381 static int ftdi_SIO_startup (struct usb_serial *serial)
1382 {
1383 struct ftdi_private *priv;
1384 int err;
1385
1386 dbg("%s",__FUNCTION__);
1387
1388 err = ftdi_common_startup(serial);
1389 if (err){
1390 return (err);
1391 }
1392
1393 priv = usb_get_serial_port_data(serial->port[0]);
1394 priv->chip_type = SIO;
1395 priv->baud_base = 12000000 / 16;
1396 priv->write_offset = 1;
1397
1398 return (0);
1399 }
1400
1401 /* Startup for the 8U232AM chip */
1402 /* Called from usbserial:serial_probe */
1403 static int ftdi_8U232AM_startup (struct usb_serial *serial)
1404 { /* ftdi_8U232AM_startup */
1405 struct ftdi_private *priv;
1406 int err;
1407
1408 dbg("%s",__FUNCTION__);
1409 err = ftdi_common_startup(serial);
1410 if (err){
1411 return (err);
1412 }
1413
1414 priv = usb_get_serial_port_data(serial->port[0]);
1415 priv->chip_type = FT8U232AM;
1416 priv->baud_base = 48000000 / 2; /* Would be / 16, but FTDI supports 0.125, 0.25 and 0.5 divisor fractions! */
1417
1418 create_sysfs_attrs(serial);
1419
1420 return (0);
1421 } /* ftdi_8U232AM_startup */
1422
1423 /* Startup for the FT232BM chip */
1424 /* Called from usbserial:serial_probe */
1425 static int ftdi_FT232BM_startup (struct usb_serial *serial)
1426 { /* ftdi_FT232BM_startup */
1427 struct ftdi_private *priv;
1428 int err;
1429
1430 dbg("%s",__FUNCTION__);
1431 err = ftdi_common_startup(serial);
1432 if (err){
1433 return (err);
1434 }
1435
1436 priv = usb_get_serial_port_data(serial->port[0]);
1437 priv->chip_type = FT232BM;
1438 priv->baud_base = 48000000 / 2; /* Would be / 16, but FT232BM supports multiple of 0.125 divisor fractions! */
1439
1440 create_sysfs_attrs(serial);
1441
1442 return (0);
1443 } /* ftdi_FT232BM_startup */
1444
1445 /* Startup for the FT2232C chip */
1446 /* Called from usbserial:serial_probe */
1447 static int ftdi_FT2232C_startup (struct usb_serial *serial)
1448 { /* ftdi_FT2232C_startup */
1449 struct ftdi_private *priv;
1450 int err;
1451 int inter;
1452
1453 dbg("%s",__FUNCTION__);
1454 err = ftdi_common_startup(serial);
1455 if (err){
1456 return (err);
1457 }
1458
1459 priv = usb_get_serial_port_data(serial->port[0]);
1460 priv->chip_type = FT2232C;
1461 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1462
1463 if (inter) {
1464 priv->interface = INTERFACE_B;
1465 }
1466 else {
1467 priv->interface = INTERFACE_A;
1468 }
1469 priv->baud_base = 48000000 / 2; /* Would be / 16, but FT2232C supports multiple of 0.125 divisor fractions! */
1470
1471 create_sysfs_attrs(serial);
1472
1473 return (0);
1474 } /* ftdi_FT2232C_startup */
1475
1476 /* Startup for the USB-UIRT device, which requires hardwired baudrate (38400 gets mapped to 312500) */
1477 /* Called from usbserial:serial_probe */
1478 static int ftdi_USB_UIRT_startup (struct usb_serial *serial)
1479 { /* ftdi_USB_UIRT_startup */
1480 struct ftdi_private *priv;
1481 int err;
1482
1483 dbg("%s",__FUNCTION__);
1484 err = ftdi_8U232AM_startup(serial);
1485 if (err){
1486 return (err);
1487 }
1488
1489 priv = usb_get_serial_port_data(serial->port[0]);
1490 priv->flags |= ASYNC_SPD_CUST;
1491 priv->custom_divisor = 77;
1492 priv->force_baud = B38400;
1493
1494 return (0);
1495 } /* ftdi_USB_UIRT_startup */
1496
1497 /* Startup for the HE-TIRA1 device, which requires hardwired
1498 * baudrate (38400 gets mapped to 100000) */
1499 static int ftdi_HE_TIRA1_startup (struct usb_serial *serial)
1500 { /* ftdi_HE_TIRA1_startup */
1501 struct ftdi_private *priv;
1502 int err;
1503
1504 dbg("%s",__FUNCTION__);
1505 err = ftdi_FT232BM_startup(serial);
1506 if (err){
1507 return (err);
1508 }
1509
1510 priv = usb_get_serial_port_data(serial->port[0]);
1511 priv->flags |= ASYNC_SPD_CUST;
1512 priv->custom_divisor = 240;
1513 priv->force_baud = B38400;
1514 priv->force_rtscts = 1;
1515
1516 return (0);
1517 } /* ftdi_HE_TIRA1_startup */
1518
1519
1520 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1521 * it is called when the usb device is disconnected
1522 *
1523 * usbserial:usb_serial_disconnect
1524 * calls __serial_close for each open of the port
1525 * shutdown is called then (ie ftdi_shutdown)
1526 */
1527
1528
1529 static void ftdi_shutdown (struct usb_serial *serial)
1530 { /* ftdi_shutdown */
1531
1532 struct usb_serial_port *port = serial->port[0];
1533 struct ftdi_private *priv = usb_get_serial_port_data(port);
1534
1535 dbg("%s", __FUNCTION__);
1536
1537 remove_sysfs_attrs(serial);
1538
1539 /* all open ports are closed at this point
1540 * (by usbserial.c:__serial_close, which calls ftdi_close)
1541 */
1542
1543 if (priv) {
1544 usb_set_serial_port_data(port, NULL);
1545 kfree(priv);
1546 }
1547 } /* ftdi_shutdown */
1548
1549
1550 static int ftdi_open (struct usb_serial_port *port, struct file *filp)
1551 { /* ftdi_open */
1552 struct termios tmp_termios;
1553 struct usb_device *dev = port->serial->dev;
1554 struct ftdi_private *priv = usb_get_serial_port_data(port);
1555 unsigned long flags;
1556
1557 int result = 0;
1558 char buf[1]; /* Needed for the usb_control_msg I think */
1559
1560 dbg("%s", __FUNCTION__);
1561
1562
1563 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1564
1565 /* No error checking for this (will get errors later anyway) */
1566 /* See ftdi_sio.h for description of what is reset */
1567 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1568 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1569 FTDI_SIO_RESET_SIO,
1570 priv->interface, buf, 0, WDR_TIMEOUT);
1571
1572 /* Termios defaults are set by usb_serial_init. We don't change
1573 port->tty->termios - this would loose speed settings, etc.
1574 This is same behaviour as serial.c/rs_open() - Kuba */
1575
1576 /* ftdi_set_termios will send usb control messages */
1577 ftdi_set_termios(port, &tmp_termios);
1578
1579 /* FIXME: Flow control might be enabled, so it should be checked -
1580 we have no control of defaults! */
1581 /* Turn on RTS and DTR since we are not flow controlling by default */
1582 if (set_dtr(port, HIGH) < 0) {
1583 err("%s Error from DTR HIGH urb", __FUNCTION__);
1584 }
1585 if (set_rts(port, HIGH) < 0){
1586 err("%s Error from RTS HIGH urb", __FUNCTION__);
1587 }
1588
1589 /* Not throttled */
1590 spin_lock_irqsave(&priv->rx_lock, flags);
1591 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1592 spin_unlock_irqrestore(&priv->rx_lock, flags);
1593
1594 /* Start reading from the device */
1595 usb_fill_bulk_urb(port->read_urb, dev,
1596 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1597 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1598 ftdi_read_bulk_callback, port);
1599 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1600 if (result)
1601 err("%s - failed submitting read urb, error %d", __FUNCTION__, result);
1602
1603
1604 return result;
1605 } /* ftdi_open */
1606
1607
1608
1609 /*
1610 * usbserial:__serial_close only calls ftdi_close if the point is open
1611 *
1612 * This only gets called when it is the last close
1613 *
1614 *
1615 */
1616
1617 static void ftdi_close (struct usb_serial_port *port, struct file *filp)
1618 { /* ftdi_close */
1619 unsigned int c_cflag = port->tty->termios->c_cflag;
1620 struct ftdi_private *priv = usb_get_serial_port_data(port);
1621 char buf[1];
1622
1623 dbg("%s", __FUNCTION__);
1624
1625 if (c_cflag & HUPCL){
1626 /* Disable flow control */
1627 if (usb_control_msg(port->serial->dev,
1628 usb_sndctrlpipe(port->serial->dev, 0),
1629 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1630 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1631 0, priv->interface, buf, 0,
1632 WDR_TIMEOUT) < 0) {
1633 err("error from flowcontrol urb");
1634 }
1635
1636 /* drop DTR */
1637 if (set_dtr(port, LOW) < 0){
1638 err("Error from DTR LOW urb");
1639 }
1640 /* drop RTS */
1641 if (set_rts(port, LOW) < 0) {
1642 err("Error from RTS LOW urb");
1643 }
1644 } /* Note change no line if hupcl is off */
1645
1646 /* shutdown our bulk read */
1647 if (port->read_urb)
1648 usb_kill_urb(port->read_urb);
1649 } /* ftdi_close */
1650
1651
1652
1653 /* The SIO requires the first byte to have:
1654 * B0 1
1655 * B1 0
1656 * B2..7 length of message excluding byte 0
1657 *
1658 * The new devices do not require this byte
1659 */
1660 static int ftdi_write (struct usb_serial_port *port,
1661 const unsigned char *buf, int count)
1662 { /* ftdi_write */
1663 struct ftdi_private *priv = usb_get_serial_port_data(port);
1664 struct urb *urb;
1665 unsigned char *buffer;
1666 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1667 int status;
1668 int transfer_size;
1669
1670 dbg("%s port %d, %d bytes", __FUNCTION__, port->number, count);
1671
1672 if (count == 0) {
1673 dbg("write request of 0 bytes");
1674 return 0;
1675 }
1676
1677 data_offset = priv->write_offset;
1678 dbg("data_offset set to %d",data_offset);
1679
1680 /* Determine total transfer size */
1681 transfer_size = count;
1682 if (data_offset > 0) {
1683 /* Original sio needs control bytes too... */
1684 transfer_size += (data_offset *
1685 ((count + (PKTSZ - 1 - data_offset)) /
1686 (PKTSZ - data_offset)));
1687 }
1688
1689 buffer = kmalloc (transfer_size, GFP_ATOMIC);
1690 if (!buffer) {
1691 err("%s ran out of kernel memory for urb ...", __FUNCTION__);
1692 return -ENOMEM;
1693 }
1694
1695 urb = usb_alloc_urb(0, GFP_ATOMIC);
1696 if (!urb) {
1697 err("%s - no more free urbs", __FUNCTION__);
1698 kfree (buffer);
1699 return -ENOMEM;
1700 }
1701
1702 /* Copy data */
1703 if (data_offset > 0) {
1704 /* Original sio requires control byte at start of each packet. */
1705 int user_pktsz = PKTSZ - data_offset;
1706 int todo = count;
1707 unsigned char *first_byte = buffer;
1708 const unsigned char *current_position = buf;
1709
1710 while (todo > 0) {
1711 if (user_pktsz > todo) {
1712 user_pktsz = todo;
1713 }
1714 /* Write the control byte at the front of the packet*/
1715 *first_byte = 1 | ((user_pktsz) << 2);
1716 /* Copy data for packet */
1717 memcpy (first_byte + data_offset,
1718 current_position, user_pktsz);
1719 first_byte += user_pktsz + data_offset;
1720 current_position += user_pktsz;
1721 todo -= user_pktsz;
1722 }
1723 } else {
1724 /* No control byte required. */
1725 /* Copy in the data to send */
1726 memcpy (buffer, buf, count);
1727 }
1728
1729 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, transfer_size, buffer);
1730
1731 /* fill the buffer and send it */
1732 usb_fill_bulk_urb(urb, port->serial->dev,
1733 usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress),
1734 buffer, transfer_size,
1735 ftdi_write_bulk_callback, port);
1736
1737 status = usb_submit_urb(urb, GFP_ATOMIC);
1738 if (status) {
1739 err("%s - failed submitting write urb, error %d", __FUNCTION__, status);
1740 count = status;
1741 kfree (buffer);
1742 }
1743
1744 /* we are done with this urb, so let the host driver
1745 * really free it when it is finished with it */
1746 usb_free_urb (urb);
1747
1748 dbg("%s write returning: %d", __FUNCTION__, count);
1749 return count;
1750 } /* ftdi_write */
1751
1752
1753 /* This function may get called when the device is closed */
1754
1755 static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
1756 {
1757 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
1758
1759 /* free up the transfer buffer, as usb_free_urb() does not do this */
1760 kfree (urb->transfer_buffer);
1761
1762 dbg("%s - port %d", __FUNCTION__, port->number);
1763
1764 if (urb->status) {
1765 dbg("nonzero write bulk status received: %d", urb->status);
1766 return;
1767 }
1768
1769 schedule_work(&port->work);
1770 } /* ftdi_write_bulk_callback */
1771
1772
1773 static int ftdi_write_room( struct usb_serial_port *port )
1774 {
1775 dbg("%s - port %d", __FUNCTION__, port->number);
1776
1777 /*
1778 * We really can take anything the user throws at us
1779 * but let's pick a nice big number to tell the tty
1780 * layer that we have lots of free space
1781 */
1782 return 2048;
1783 } /* ftdi_write_room */
1784
1785
1786 static int ftdi_chars_in_buffer (struct usb_serial_port *port)
1787 { /* ftdi_chars_in_buffer */
1788 dbg("%s - port %d", __FUNCTION__, port->number);
1789
1790 /*
1791 * We can't really account for how much data we
1792 * have sent out, but hasn't made it through to the
1793 * device, so just tell the tty layer that everything
1794 * is flushed.
1795 */
1796 return 0;
1797 } /* ftdi_chars_in_buffer */
1798
1799
1800
1801 static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
1802 { /* ftdi_read_bulk_callback */
1803 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
1804 struct tty_struct *tty;
1805 struct ftdi_private *priv;
1806
1807 if (urb->number_of_packets > 0) {
1808 err("%s transfer_buffer_length %d actual_length %d number of packets %d",__FUNCTION__,
1809 urb->transfer_buffer_length, urb->actual_length, urb->number_of_packets );
1810 err("%s transfer_flags %x ", __FUNCTION__,urb->transfer_flags );
1811 }
1812
1813 dbg("%s - port %d", __FUNCTION__, port->number);
1814
1815 if (port->open_count <= 0)
1816 return;
1817
1818 tty = port->tty;
1819 if (!tty) {
1820 dbg("%s - bad tty pointer - exiting",__FUNCTION__);
1821 return;
1822 }
1823
1824 priv = usb_get_serial_port_data(port);
1825 if (!priv) {
1826 dbg("%s - bad port private data pointer - exiting", __FUNCTION__);
1827 return;
1828 }
1829
1830 if (urb != port->read_urb) {
1831 err("%s - Not my urb!", __FUNCTION__);
1832 }
1833
1834 if (urb->status) {
1835 /* This will happen at close every time so it is a dbg not an err */
1836 dbg("(this is ok on close) nonzero read bulk status received: %d", urb->status);
1837 return;
1838 }
1839
1840 /* If throttled, delay receive processing until unthrottled. */
1841 spin_lock(&priv->rx_lock);
1842 if (priv->rx_flags & THROTTLED) {
1843 dbg("Deferring read urb processing until unthrottled");
1844 priv->rx_flags |= ACTUALLY_THROTTLED;
1845 spin_unlock(&priv->rx_lock);
1846 return;
1847 }
1848 spin_unlock(&priv->rx_lock);
1849
1850 ftdi_process_read(port);
1851
1852 } /* ftdi_read_bulk_callback */
1853
1854
1855 static void ftdi_process_read (struct usb_serial_port *port)
1856 { /* ftdi_process_read */
1857 struct urb *urb;
1858 struct tty_struct *tty;
1859 struct ftdi_private *priv;
1860 char error_flag;
1861 unsigned char *data;
1862
1863 int i;
1864 int result;
1865 int need_flip;
1866 int packet_offset;
1867
1868 dbg("%s - port %d", __FUNCTION__, port->number);
1869
1870 if (port->open_count <= 0)
1871 return;
1872
1873 tty = port->tty;
1874 if (!tty) {
1875 dbg("%s - bad tty pointer - exiting",__FUNCTION__);
1876 return;
1877 }
1878
1879 priv = usb_get_serial_port_data(port);
1880 if (!priv) {
1881 dbg("%s - bad port private data pointer - exiting", __FUNCTION__);
1882 return;
1883 }
1884
1885 urb = port->read_urb;
1886 if (!urb) {
1887 dbg("%s - bad read_urb pointer - exiting", __FUNCTION__);
1888 return;
1889 }
1890
1891 data = urb->transfer_buffer;
1892
1893 /* The first two bytes of every read packet are status */
1894 if (urb->actual_length > 2) {
1895 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
1896 } else {
1897 dbg("Status only: %03oo %03oo",data[0],data[1]);
1898 }
1899
1900
1901 /* TO DO -- check for hung up line and handle appropriately: */
1902 /* send hangup */
1903 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1904 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1905
1906 need_flip = 0;
1907 for (packet_offset=0; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1908 /* Compare new line status to the old one, signal if different */
1909 if (priv != NULL) {
1910 char new_status = data[packet_offset+0] & FTDI_STATUS_B0_MASK;
1911 if (new_status != priv->prev_status) {
1912 priv->diff_status |= new_status ^ priv->prev_status;
1913 wake_up_interruptible(&priv->delta_msr_wait);
1914 priv->prev_status = new_status;
1915 }
1916 }
1917
1918 /* Handle errors and break */
1919 error_flag = TTY_NORMAL;
1920 /* Although the device uses a bitmask and hence can have multiple */
1921 /* errors on a packet - the order here sets the priority the */
1922 /* error is returned to the tty layer */
1923
1924 if ( data[packet_offset+1] & FTDI_RS_OE ) {
1925 error_flag = TTY_OVERRUN;
1926 dbg("OVERRRUN error");
1927 }
1928 if ( data[packet_offset+1] & FTDI_RS_BI ) {
1929 error_flag = TTY_BREAK;
1930 dbg("BREAK received");
1931 }
1932 if ( data[packet_offset+1] & FTDI_RS_PE ) {
1933 error_flag = TTY_PARITY;
1934 dbg("PARITY error");
1935 }
1936 if ( data[packet_offset+1] & FTDI_RS_FE ) {
1937 error_flag = TTY_FRAME;
1938 dbg("FRAMING error");
1939 }
1940 if (urb->actual_length > packet_offset + 2) {
1941 for (i = 2; (i < PKTSZ) && ((i+packet_offset) < urb->actual_length); ++i) {
1942 /* have to make sure we don't overflow the buffer
1943 with tty_insert_flip_char's */
1944 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1945 tty_flip_buffer_push(tty);
1946 }
1947 /* Note that the error flag is duplicated for
1948 every character received since we don't know
1949 which character it applied to */
1950 tty_insert_flip_char(tty, data[packet_offset+i], error_flag);
1951 }
1952 need_flip = 1;
1953 }
1954
1955 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1956 /* if a parity error is detected you get status packets forever
1957 until a character is sent without a parity error.
1958 This doesn't work well since the application receives a never
1959 ending stream of bad data - even though new data hasn't been sent.
1960 Therefore I (bill) have taken this out.
1961 However - this might make sense for framing errors and so on
1962 so I am leaving the code in for now.
1963 */
1964 else {
1965 if (error_flag != TTY_NORMAL){
1966 dbg("error_flag is not normal");
1967 /* In this case it is just status - if that is an error send a bad character */
1968 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1969 tty_flip_buffer_push(tty);
1970 }
1971 tty_insert_flip_char(tty, 0xff, error_flag);
1972 need_flip = 1;
1973 }
1974 }
1975 #endif
1976 } /* "for(packet_offset=0..." */
1977
1978 /* Low latency */
1979 if (need_flip) {
1980 tty_flip_buffer_push(tty);
1981 }
1982
1983 /* if the port is closed stop trying to read */
1984 if (port->open_count > 0){
1985 /* Continue trying to always read */
1986 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
1987 usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress),
1988 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1989 ftdi_read_bulk_callback, port);
1990
1991 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
1992 if (result)
1993 err("%s - failed resubmitting read urb, error %d", __FUNCTION__, result);
1994 }
1995
1996 return;
1997 } /* ftdi_process_read */
1998
1999
2000 static void ftdi_break_ctl( struct usb_serial_port *port, int break_state )
2001 {
2002 struct ftdi_private *priv = usb_get_serial_port_data(port);
2003 __u16 urb_value = 0;
2004 char buf[1];
2005
2006 /* break_state = -1 to turn on break, and 0 to turn off break */
2007 /* see drivers/char/tty_io.c to see it used */
2008 /* last_set_data_urb_value NEVER has the break bit set in it */
2009
2010 if (break_state) {
2011 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2012 } else {
2013 urb_value = priv->last_set_data_urb_value;
2014 }
2015
2016
2017 if (usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
2018 FTDI_SIO_SET_DATA_REQUEST,
2019 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2020 urb_value , priv->interface,
2021 buf, 0, WDR_TIMEOUT) < 0) {
2022 err("%s FAILED to enable/disable break state (state was %d)", __FUNCTION__,break_state);
2023 }
2024
2025 dbg("%s break state is %d - urb is %d", __FUNCTION__,break_state, urb_value);
2026
2027 }
2028
2029
2030 /* old_termios contains the original termios settings and tty->termios contains
2031 * the new setting to be used
2032 * WARNING: set_termios calls this with old_termios in kernel space
2033 */
2034
2035 static void ftdi_set_termios (struct usb_serial_port *port, struct termios *old_termios)
2036 { /* ftdi_termios */
2037 struct usb_device *dev = port->serial->dev;
2038 unsigned int cflag = port->tty->termios->c_cflag;
2039 struct ftdi_private *priv = usb_get_serial_port_data(port);
2040 __u16 urb_value; /* will hold the new flags */
2041 char buf[1]; /* Perhaps I should dynamically alloc this? */
2042
2043 // Added for xon/xoff support
2044 unsigned int iflag = port->tty->termios->c_iflag;
2045 unsigned char vstop;
2046 unsigned char vstart;
2047
2048 dbg("%s", __FUNCTION__);
2049
2050 /* Force baud rate if this device requires it, unless it is set to B0. */
2051 if (priv->force_baud && ((port->tty->termios->c_cflag & CBAUD) != B0)) {
2052 dbg("%s: forcing baud rate for this device", __FUNCTION__);
2053 port->tty->termios->c_cflag &= ~CBAUD;
2054 port->tty->termios->c_cflag |= priv->force_baud;
2055 }
2056
2057 /* Force RTS-CTS if this device requires it. */
2058 if (priv->force_rtscts) {
2059 dbg("%s: forcing rtscts for this device", __FUNCTION__);
2060 port->tty->termios->c_cflag |= CRTSCTS;
2061 }
2062
2063 cflag = port->tty->termios->c_cflag;
2064
2065 /* FIXME -For this cut I don't care if the line is really changing or
2066 not - so just do the change regardless - should be able to
2067 compare old_termios and tty->termios */
2068 /* NOTE These routines can get interrupted by
2069 ftdi_sio_read_bulk_callback - need to examine what this
2070 means - don't see any problems yet */
2071
2072 /* Set number of data bits, parity, stop bits */
2073
2074 urb_value = 0;
2075 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2076 FTDI_SIO_SET_DATA_STOP_BITS_1);
2077 urb_value |= (cflag & PARENB ?
2078 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2079 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2080 FTDI_SIO_SET_DATA_PARITY_NONE);
2081 if (cflag & CSIZE) {
2082 switch (cflag & CSIZE) {
2083 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2084 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2085 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2086 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2087 default:
2088 err("CSIZE was set but not CS5-CS8");
2089 }
2090 }
2091
2092 /* This is needed by the break command since it uses the same command - but is
2093 * or'ed with this value */
2094 priv->last_set_data_urb_value = urb_value;
2095
2096 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2097 FTDI_SIO_SET_DATA_REQUEST,
2098 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2099 urb_value , priv->interface,
2100 buf, 0, 100) < 0) {
2101 err("%s FAILED to set databits/stopbits/parity", __FUNCTION__);
2102 }
2103
2104 /* Now do the baudrate */
2105 if ((cflag & CBAUD) == B0 ) {
2106 /* Disable flow control */
2107 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2108 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2109 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2110 0, priv->interface,
2111 buf, 0, WDR_TIMEOUT) < 0) {
2112 err("%s error from disable flowcontrol urb", __FUNCTION__);
2113 }
2114 /* Drop RTS and DTR */
2115 if (set_dtr(port, LOW) < 0){
2116 err("%s Error from DTR LOW urb", __FUNCTION__);
2117 }
2118 if (set_rts(port, LOW) < 0){
2119 err("%s Error from RTS LOW urb", __FUNCTION__);
2120 }
2121
2122 } else {
2123 /* set the baudrate determined before */
2124 if (change_speed(port)) {
2125 err("%s urb failed to set baurdrate", __FUNCTION__);
2126 }
2127 /* Ensure RTS and DTR are raised */
2128 else if (set_dtr(port, HIGH) < 0){
2129 err("%s Error from DTR HIGH urb", __FUNCTION__);
2130 }
2131 else if (set_rts(port, HIGH) < 0){
2132 err("%s Error from RTS HIGH urb", __FUNCTION__);
2133 }
2134 }
2135
2136 /* Set flow control */
2137 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2138 if (cflag & CRTSCTS) {
2139 dbg("%s Setting to CRTSCTS flow control", __FUNCTION__);
2140 if (usb_control_msg(dev,
2141 usb_sndctrlpipe(dev, 0),
2142 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2143 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2144 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2145 buf, 0, WDR_TIMEOUT) < 0) {
2146 err("urb failed to set to rts/cts flow control");
2147 }
2148
2149 } else {
2150 /*
2151 * Xon/Xoff code
2152 *
2153 * Check the IXOFF status in the iflag component of the termios structure
2154 * if IXOFF is not set, the pre-xon/xoff code is executed.
2155 */
2156 if (iflag & IXOFF) {
2157 dbg("%s request to enable xonxoff iflag=%04x",__FUNCTION__,iflag);
2158 // Try to enable the XON/XOFF on the ftdi_sio
2159 // Set the vstart and vstop -- could have been done up above where
2160 // a lot of other dereferencing is done but that would be very
2161 // inefficient as vstart and vstop are not always needed
2162 vstart=port->tty->termios->c_cc[VSTART];
2163 vstop=port->tty->termios->c_cc[VSTOP];
2164 urb_value=(vstop << 8) | (vstart);
2165
2166 if (usb_control_msg(dev,
2167 usb_sndctrlpipe(dev, 0),
2168 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2169 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2170 urb_value , (FTDI_SIO_XON_XOFF_HS
2171 | priv->interface),
2172 buf, 0, WDR_TIMEOUT) < 0) {
2173 err("urb failed to set to xon/xoff flow control");
2174 }
2175 } else {
2176 /* else clause to only run if cfag ! CRTSCTS and iflag ! XOFF */
2177 /* CHECKME Assuming XON/XOFF handled by tty stack - not by device */
2178 dbg("%s Turning off hardware flow control", __FUNCTION__);
2179 if (usb_control_msg(dev,
2180 usb_sndctrlpipe(dev, 0),
2181 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2182 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2183 0, priv->interface,
2184 buf, 0, WDR_TIMEOUT) < 0) {
2185 err("urb failed to clear flow control");
2186 }
2187 }
2188
2189 }
2190 return;
2191 } /* ftdi_termios */
2192
2193
2194 static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file)
2195 {
2196 struct ftdi_private *priv = usb_get_serial_port_data(port);
2197 unsigned char buf[2];
2198 int ret;
2199
2200 dbg("%s TIOCMGET", __FUNCTION__);
2201 switch (priv->chip_type) {
2202 case SIO:
2203 /* Request the status from the device */
2204 if ((ret = usb_control_msg(port->serial->dev,
2205 usb_rcvctrlpipe(port->serial->dev, 0),
2206 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2207 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2208 0, 0,
2209 buf, 1, WDR_TIMEOUT)) < 0 ) {
2210 err("%s Could not get modem status of device - err: %d", __FUNCTION__,
2211 ret);
2212 return(ret);
2213 }
2214 break;
2215 case FT8U232AM:
2216 case FT232BM:
2217 case FT2232C:
2218 /* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same
2219 format as the data returned from the in point */
2220 if ((ret = usb_control_msg(port->serial->dev,
2221 usb_rcvctrlpipe(port->serial->dev, 0),
2222 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2223 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2224 0, priv->interface,
2225 buf, 2, WDR_TIMEOUT)) < 0 ) {
2226 err("%s Could not get modem status of device - err: %d", __FUNCTION__,
2227 ret);
2228 return(ret);
2229 }
2230 break;
2231 default:
2232 return -EFAULT;
2233 break;
2234 }
2235
2236 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2237 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2238 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2239 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2240 priv->last_dtr_rts;
2241 }
2242
2243 static int ftdi_tiocmset(struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear)
2244 {
2245 int ret;
2246
2247 dbg("%s TIOCMSET", __FUNCTION__);
2248 if (set & TIOCM_DTR){
2249 if ((ret = set_dtr(port, HIGH)) < 0) {
2250 err("Urb to set DTR failed");
2251 return(ret);
2252 }
2253 }
2254 if (set & TIOCM_RTS) {
2255 if ((ret = set_rts(port, HIGH)) < 0){
2256 err("Urb to set RTS failed");
2257 return(ret);
2258 }
2259 }
2260
2261 if (clear & TIOCM_DTR){
2262 if ((ret = set_dtr(port, LOW)) < 0){
2263 err("Urb to unset DTR failed");
2264 return(ret);
2265 }
2266 }
2267 if (clear & TIOCM_RTS) {
2268 if ((ret = set_rts(port, LOW)) < 0){
2269 err("Urb to unset RTS failed");
2270 return(ret);
2271 }
2272 }
2273 return(0);
2274 }
2275
2276
2277 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
2278 {
2279 struct ftdi_private *priv = usb_get_serial_port_data(port);
2280
2281 int ret, mask;
2282
2283 dbg("%s cmd 0x%04x", __FUNCTION__, cmd);
2284
2285 /* Based on code from acm.c and others */
2286 switch (cmd) {
2287
2288 case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
2289 dbg("%s TIOCMBIS", __FUNCTION__);
2290 if (get_user(mask, (unsigned long __user *) arg))
2291 return -EFAULT;
2292 if (mask & TIOCM_DTR){
2293 if ((ret = set_dtr(port, HIGH)) < 0) {
2294 err("Urb to set DTR failed");
2295 return(ret);
2296 }
2297 }
2298 if (mask & TIOCM_RTS) {
2299 if ((ret = set_rts(port, HIGH)) < 0){
2300 err("Urb to set RTS failed");
2301 return(ret);
2302 }
2303 }
2304 return(0);
2305 break;
2306
2307 case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
2308 dbg("%s TIOCMBIC", __FUNCTION__);
2309 if (get_user(mask, (unsigned long __user *) arg))
2310 return -EFAULT;
2311 if (mask & TIOCM_DTR){
2312 if ((ret = set_dtr(port, LOW)) < 0){
2313 err("Urb to unset DTR failed");
2314 return(ret);
2315 }
2316 }
2317 if (mask & TIOCM_RTS) {
2318 if ((ret = set_rts(port, LOW)) < 0){
2319 err("Urb to unset RTS failed");
2320 return(ret);
2321 }
2322 }
2323 return(0);
2324 break;
2325
2326 /*
2327 * I had originally implemented TCSET{A,S}{,F,W} and
2328 * TCGET{A,S} here separately, however when testing I
2329 * found that the higher layers actually do the termios
2330 * conversions themselves and pass the call onto
2331 * ftdi_sio_set_termios.
2332 *
2333 */
2334
2335 case TIOCGSERIAL: /* gets serial port data */
2336 return get_serial_info(port, (struct serial_struct __user *) arg);
2337
2338 case TIOCSSERIAL: /* sets serial port data */
2339 return set_serial_info(port, (struct serial_struct __user *) arg);
2340
2341 /*
2342 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2343 * - mask passed in arg for lines of interest
2344 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2345 * Caller should use TIOCGICOUNT to see which one it was.
2346 *
2347 * This code is borrowed from linux/drivers/char/serial.c
2348 */
2349 case TIOCMIWAIT:
2350 while (priv != NULL) {
2351 interruptible_sleep_on(&priv->delta_msr_wait);
2352 /* see if a signal did it */
2353 if (signal_pending(current))
2354 return -ERESTARTSYS;
2355 else {
2356 char diff = priv->diff_status;
2357
2358 if (diff == 0) {
2359 return -EIO; /* no change => error */
2360 }
2361
2362 /* Consume all events */
2363 priv->diff_status = 0;
2364
2365 /* Return 0 if caller wanted to know about these bits */
2366 if ( ((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2367 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2368 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2369 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS)) ) {
2370 return 0;
2371 }
2372 /*
2373 * Otherwise caller can't care less about what happened,
2374 * and so we continue to wait for more events.
2375 */
2376 }
2377 }
2378 return(0);
2379 break;
2380 default:
2381 break;
2382
2383 }
2384
2385
2386 /* This is not necessarily an error - turns out the higher layers will do
2387 * some ioctls itself (see comment above)
2388 */
2389 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __FUNCTION__, cmd);
2390
2391 return(-ENOIOCTLCMD);
2392 } /* ftdi_ioctl */
2393
2394
2395 static void ftdi_throttle (struct usb_serial_port *port)
2396 {
2397 struct ftdi_private *priv = usb_get_serial_port_data(port);
2398 unsigned long flags;
2399
2400 dbg("%s - port %d", __FUNCTION__, port->number);
2401
2402 spin_lock_irqsave(&priv->rx_lock, flags);
2403 priv->rx_flags |= THROTTLED;
2404 spin_unlock_irqrestore(&priv->rx_lock, flags);
2405 }
2406
2407
2408 static void ftdi_unthrottle (struct usb_serial_port *port)
2409 {
2410 struct ftdi_private *priv = usb_get_serial_port_data(port);
2411 int actually_throttled;
2412 unsigned long flags;
2413
2414 dbg("%s - port %d", __FUNCTION__, port->number);
2415
2416 spin_lock_irqsave(&priv->rx_lock, flags);
2417 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2418 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2419 spin_unlock_irqrestore(&priv->rx_lock, flags);
2420
2421 if (actually_throttled)
2422 ftdi_process_read(port);
2423 }
2424
2425 static int __init ftdi_init (void)
2426 {
2427 int retval;
2428
2429 dbg("%s", __FUNCTION__);
2430 retval = usb_serial_register(&ftdi_SIO_device);
2431 if (retval)
2432 goto failed_SIO_register;
2433 retval = usb_serial_register(&ftdi_8U232AM_device);
2434 if (retval)
2435 goto failed_8U232AM_register;
2436 retval = usb_serial_register(&ftdi_FT232BM_device);
2437 if (retval)
2438 goto failed_FT232BM_register;
2439 retval = usb_serial_register(&ftdi_FT2232C_device);
2440 if (retval)
2441 goto failed_FT2232C_register;
2442 retval = usb_serial_register(&ftdi_USB_UIRT_device);
2443 if (retval)
2444 goto failed_USB_UIRT_register;
2445 retval = usb_serial_register(&ftdi_HE_TIRA1_device);
2446 if (retval)
2447 goto failed_HE_TIRA1_register;
2448 retval = usb_register(&ftdi_driver);
2449 if (retval)
2450 goto failed_usb_register;
2451
2452 info(DRIVER_VERSION ":" DRIVER_DESC);
2453 return 0;
2454 failed_usb_register:
2455 usb_serial_deregister(&ftdi_HE_TIRA1_device);
2456 failed_HE_TIRA1_register:
2457 usb_serial_deregister(&ftdi_USB_UIRT_device);
2458 failed_USB_UIRT_register:
2459 usb_serial_deregister(&ftdi_FT2232C_device);
2460 failed_FT2232C_register:
2461 usb_serial_deregister(&ftdi_FT232BM_device);
2462 failed_FT232BM_register:
2463 usb_serial_deregister(&ftdi_8U232AM_device);
2464 failed_8U232AM_register:
2465 usb_serial_deregister(&ftdi_SIO_device);
2466 failed_SIO_register:
2467 return retval;
2468 }
2469
2470
2471 static void __exit ftdi_exit (void)
2472 {
2473
2474 dbg("%s", __FUNCTION__);
2475
2476 usb_deregister (&ftdi_driver);
2477 usb_serial_deregister (&ftdi_HE_TIRA1_device);
2478 usb_serial_deregister (&ftdi_USB_UIRT_device);
2479 usb_serial_deregister (&ftdi_FT2232C_device);
2480 usb_serial_deregister (&ftdi_FT232BM_device);
2481 usb_serial_deregister (&ftdi_8U232AM_device);
2482 usb_serial_deregister (&ftdi_SIO_device);
2483
2484 }
2485
2486
2487 module_init(ftdi_init);
2488 module_exit(ftdi_exit);
2489
2490 MODULE_AUTHOR( DRIVER_AUTHOR );
2491 MODULE_DESCRIPTION( DRIVER_DESC );
2492 MODULE_LICENSE("GPL");
2493
2494 module_param(debug, bool, S_IRUGO | S_IWUSR);
2495 MODULE_PARM_DESC(debug, "Debug enabled or not");
2496
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree