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[PATCH] USB: kfree cleanup for drivers/usb/* - no need to check for NULL
[deliverable/linux.git] / drivers / usb / serial / ftdi_sio.c
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 kfree(port->bulk_in_buffer);
1351 port->bulk_in_buffer = kmalloc (BUFSZ, GFP_KERNEL);
1352 if (!port->bulk_in_buffer) {
1353 kfree (priv);
1354 return -ENOMEM;
1355 }
1356 if (port->read_urb) {
1357 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1358 port->read_urb->transfer_buffer_length = BUFSZ;
1359 }
1360
1361 /* Free port's existing write urb and transfer buffer. */
1362 if (port->write_urb) {
1363 usb_free_urb (port->write_urb);
1364 port->write_urb = NULL;
1365 }
1366 kfree(port->bulk_out_buffer);
1367 port->bulk_out_buffer = NULL;
1368
1369 usb_set_serial_port_data(serial->port[0], priv);
1370
1371 return (0);
1372 }
1373
1374
1375 /* Startup for the SIO chip */
1376 /* Called from usbserial:serial_probe */
1377 static int ftdi_SIO_startup (struct usb_serial *serial)
1378 {
1379 struct ftdi_private *priv;
1380 int err;
1381
1382 dbg("%s",__FUNCTION__);
1383
1384 err = ftdi_common_startup(serial);
1385 if (err){
1386 return (err);
1387 }
1388
1389 priv = usb_get_serial_port_data(serial->port[0]);
1390 priv->chip_type = SIO;
1391 priv->baud_base = 12000000 / 16;
1392 priv->write_offset = 1;
1393
1394 return (0);
1395 }
1396
1397 /* Startup for the 8U232AM chip */
1398 /* Called from usbserial:serial_probe */
1399 static int ftdi_8U232AM_startup (struct usb_serial *serial)
1400 { /* ftdi_8U232AM_startup */
1401 struct ftdi_private *priv;
1402 int err;
1403
1404 dbg("%s",__FUNCTION__);
1405 err = ftdi_common_startup(serial);
1406 if (err){
1407 return (err);
1408 }
1409
1410 priv = usb_get_serial_port_data(serial->port[0]);
1411 priv->chip_type = FT8U232AM;
1412 priv->baud_base = 48000000 / 2; /* Would be / 16, but FTDI supports 0.125, 0.25 and 0.5 divisor fractions! */
1413
1414 create_sysfs_attrs(serial);
1415
1416 return (0);
1417 } /* ftdi_8U232AM_startup */
1418
1419 /* Startup for the FT232BM chip */
1420 /* Called from usbserial:serial_probe */
1421 static int ftdi_FT232BM_startup (struct usb_serial *serial)
1422 { /* ftdi_FT232BM_startup */
1423 struct ftdi_private *priv;
1424 int err;
1425
1426 dbg("%s",__FUNCTION__);
1427 err = ftdi_common_startup(serial);
1428 if (err){
1429 return (err);
1430 }
1431
1432 priv = usb_get_serial_port_data(serial->port[0]);
1433 priv->chip_type = FT232BM;
1434 priv->baud_base = 48000000 / 2; /* Would be / 16, but FT232BM supports multiple of 0.125 divisor fractions! */
1435
1436 create_sysfs_attrs(serial);
1437
1438 return (0);
1439 } /* ftdi_FT232BM_startup */
1440
1441 /* Startup for the FT2232C chip */
1442 /* Called from usbserial:serial_probe */
1443 static int ftdi_FT2232C_startup (struct usb_serial *serial)
1444 { /* ftdi_FT2232C_startup */
1445 struct ftdi_private *priv;
1446 int err;
1447 int inter;
1448
1449 dbg("%s",__FUNCTION__);
1450 err = ftdi_common_startup(serial);
1451 if (err){
1452 return (err);
1453 }
1454
1455 priv = usb_get_serial_port_data(serial->port[0]);
1456 priv->chip_type = FT2232C;
1457 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1458
1459 if (inter) {
1460 priv->interface = INTERFACE_B;
1461 }
1462 else {
1463 priv->interface = INTERFACE_A;
1464 }
1465 priv->baud_base = 48000000 / 2; /* Would be / 16, but FT2232C supports multiple of 0.125 divisor fractions! */
1466
1467 create_sysfs_attrs(serial);
1468
1469 return (0);
1470 } /* ftdi_FT2232C_startup */
1471
1472 /* Startup for the USB-UIRT device, which requires hardwired baudrate (38400 gets mapped to 312500) */
1473 /* Called from usbserial:serial_probe */
1474 static int ftdi_USB_UIRT_startup (struct usb_serial *serial)
1475 { /* ftdi_USB_UIRT_startup */
1476 struct ftdi_private *priv;
1477 int err;
1478
1479 dbg("%s",__FUNCTION__);
1480 err = ftdi_8U232AM_startup(serial);
1481 if (err){
1482 return (err);
1483 }
1484
1485 priv = usb_get_serial_port_data(serial->port[0]);
1486 priv->flags |= ASYNC_SPD_CUST;
1487 priv->custom_divisor = 77;
1488 priv->force_baud = B38400;
1489
1490 return (0);
1491 } /* ftdi_USB_UIRT_startup */
1492
1493 /* Startup for the HE-TIRA1 device, which requires hardwired
1494 * baudrate (38400 gets mapped to 100000) */
1495 static int ftdi_HE_TIRA1_startup (struct usb_serial *serial)
1496 { /* ftdi_HE_TIRA1_startup */
1497 struct ftdi_private *priv;
1498 int err;
1499
1500 dbg("%s",__FUNCTION__);
1501 err = ftdi_FT232BM_startup(serial);
1502 if (err){
1503 return (err);
1504 }
1505
1506 priv = usb_get_serial_port_data(serial->port[0]);
1507 priv->flags |= ASYNC_SPD_CUST;
1508 priv->custom_divisor = 240;
1509 priv->force_baud = B38400;
1510 priv->force_rtscts = 1;
1511
1512 return (0);
1513 } /* ftdi_HE_TIRA1_startup */
1514
1515
1516 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1517 * it is called when the usb device is disconnected
1518 *
1519 * usbserial:usb_serial_disconnect
1520 * calls __serial_close for each open of the port
1521 * shutdown is called then (ie ftdi_shutdown)
1522 */
1523
1524
1525 static void ftdi_shutdown (struct usb_serial *serial)
1526 { /* ftdi_shutdown */
1527
1528 struct usb_serial_port *port = serial->port[0];
1529 struct ftdi_private *priv = usb_get_serial_port_data(port);
1530
1531 dbg("%s", __FUNCTION__);
1532
1533 remove_sysfs_attrs(serial);
1534
1535 /* all open ports are closed at this point
1536 * (by usbserial.c:__serial_close, which calls ftdi_close)
1537 */
1538
1539 if (priv) {
1540 usb_set_serial_port_data(port, NULL);
1541 kfree(priv);
1542 }
1543 } /* ftdi_shutdown */
1544
1545
1546 static int ftdi_open (struct usb_serial_port *port, struct file *filp)
1547 { /* ftdi_open */
1548 struct termios tmp_termios;
1549 struct usb_device *dev = port->serial->dev;
1550 struct ftdi_private *priv = usb_get_serial_port_data(port);
1551 unsigned long flags;
1552
1553 int result = 0;
1554 char buf[1]; /* Needed for the usb_control_msg I think */
1555
1556 dbg("%s", __FUNCTION__);
1557
1558
1559 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1560
1561 /* No error checking for this (will get errors later anyway) */
1562 /* See ftdi_sio.h for description of what is reset */
1563 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1564 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1565 FTDI_SIO_RESET_SIO,
1566 priv->interface, buf, 0, WDR_TIMEOUT);
1567
1568 /* Termios defaults are set by usb_serial_init. We don't change
1569 port->tty->termios - this would loose speed settings, etc.
1570 This is same behaviour as serial.c/rs_open() - Kuba */
1571
1572 /* ftdi_set_termios will send usb control messages */
1573 ftdi_set_termios(port, &tmp_termios);
1574
1575 /* FIXME: Flow control might be enabled, so it should be checked -
1576 we have no control of defaults! */
1577 /* Turn on RTS and DTR since we are not flow controlling by default */
1578 if (set_dtr(port, HIGH) < 0) {
1579 err("%s Error from DTR HIGH urb", __FUNCTION__);
1580 }
1581 if (set_rts(port, HIGH) < 0){
1582 err("%s Error from RTS HIGH urb", __FUNCTION__);
1583 }
1584
1585 /* Not throttled */
1586 spin_lock_irqsave(&priv->rx_lock, flags);
1587 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1588 spin_unlock_irqrestore(&priv->rx_lock, flags);
1589
1590 /* Start reading from the device */
1591 usb_fill_bulk_urb(port->read_urb, dev,
1592 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1593 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1594 ftdi_read_bulk_callback, port);
1595 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1596 if (result)
1597 err("%s - failed submitting read urb, error %d", __FUNCTION__, result);
1598
1599
1600 return result;
1601 } /* ftdi_open */
1602
1603
1604
1605 /*
1606 * usbserial:__serial_close only calls ftdi_close if the point is open
1607 *
1608 * This only gets called when it is the last close
1609 *
1610 *
1611 */
1612
1613 static void ftdi_close (struct usb_serial_port *port, struct file *filp)
1614 { /* ftdi_close */
1615 unsigned int c_cflag = port->tty->termios->c_cflag;
1616 struct ftdi_private *priv = usb_get_serial_port_data(port);
1617 char buf[1];
1618
1619 dbg("%s", __FUNCTION__);
1620
1621 if (c_cflag & HUPCL){
1622 /* Disable flow control */
1623 if (usb_control_msg(port->serial->dev,
1624 usb_sndctrlpipe(port->serial->dev, 0),
1625 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1626 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1627 0, priv->interface, buf, 0,
1628 WDR_TIMEOUT) < 0) {
1629 err("error from flowcontrol urb");
1630 }
1631
1632 /* drop DTR */
1633 if (set_dtr(port, LOW) < 0){
1634 err("Error from DTR LOW urb");
1635 }
1636 /* drop RTS */
1637 if (set_rts(port, LOW) < 0) {
1638 err("Error from RTS LOW urb");
1639 }
1640 } /* Note change no line if hupcl is off */
1641
1642 /* shutdown our bulk read */
1643 if (port->read_urb)
1644 usb_kill_urb(port->read_urb);
1645 } /* ftdi_close */
1646
1647
1648
1649 /* The SIO requires the first byte to have:
1650 * B0 1
1651 * B1 0
1652 * B2..7 length of message excluding byte 0
1653 *
1654 * The new devices do not require this byte
1655 */
1656 static int ftdi_write (struct usb_serial_port *port,
1657 const unsigned char *buf, int count)
1658 { /* ftdi_write */
1659 struct ftdi_private *priv = usb_get_serial_port_data(port);
1660 struct urb *urb;
1661 unsigned char *buffer;
1662 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1663 int status;
1664 int transfer_size;
1665
1666 dbg("%s port %d, %d bytes", __FUNCTION__, port->number, count);
1667
1668 if (count == 0) {
1669 dbg("write request of 0 bytes");
1670 return 0;
1671 }
1672
1673 data_offset = priv->write_offset;
1674 dbg("data_offset set to %d",data_offset);
1675
1676 /* Determine total transfer size */
1677 transfer_size = count;
1678 if (data_offset > 0) {
1679 /* Original sio needs control bytes too... */
1680 transfer_size += (data_offset *
1681 ((count + (PKTSZ - 1 - data_offset)) /
1682 (PKTSZ - data_offset)));
1683 }
1684
1685 buffer = kmalloc (transfer_size, GFP_ATOMIC);
1686 if (!buffer) {
1687 err("%s ran out of kernel memory for urb ...", __FUNCTION__);
1688 return -ENOMEM;
1689 }
1690
1691 urb = usb_alloc_urb(0, GFP_ATOMIC);
1692 if (!urb) {
1693 err("%s - no more free urbs", __FUNCTION__);
1694 kfree (buffer);
1695 return -ENOMEM;
1696 }
1697
1698 /* Copy data */
1699 if (data_offset > 0) {
1700 /* Original sio requires control byte at start of each packet. */
1701 int user_pktsz = PKTSZ - data_offset;
1702 int todo = count;
1703 unsigned char *first_byte = buffer;
1704 const unsigned char *current_position = buf;
1705
1706 while (todo > 0) {
1707 if (user_pktsz > todo) {
1708 user_pktsz = todo;
1709 }
1710 /* Write the control byte at the front of the packet*/
1711 *first_byte = 1 | ((user_pktsz) << 2);
1712 /* Copy data for packet */
1713 memcpy (first_byte + data_offset,
1714 current_position, user_pktsz);
1715 first_byte += user_pktsz + data_offset;
1716 current_position += user_pktsz;
1717 todo -= user_pktsz;
1718 }
1719 } else {
1720 /* No control byte required. */
1721 /* Copy in the data to send */
1722 memcpy (buffer, buf, count);
1723 }
1724
1725 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, transfer_size, buffer);
1726
1727 /* fill the buffer and send it */
1728 usb_fill_bulk_urb(urb, port->serial->dev,
1729 usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress),
1730 buffer, transfer_size,
1731 ftdi_write_bulk_callback, port);
1732
1733 status = usb_submit_urb(urb, GFP_ATOMIC);
1734 if (status) {
1735 err("%s - failed submitting write urb, error %d", __FUNCTION__, status);
1736 count = status;
1737 kfree (buffer);
1738 }
1739
1740 /* we are done with this urb, so let the host driver
1741 * really free it when it is finished with it */
1742 usb_free_urb (urb);
1743
1744 dbg("%s write returning: %d", __FUNCTION__, count);
1745 return count;
1746 } /* ftdi_write */
1747
1748
1749 /* This function may get called when the device is closed */
1750
1751 static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
1752 {
1753 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
1754
1755 /* free up the transfer buffer, as usb_free_urb() does not do this */
1756 kfree (urb->transfer_buffer);
1757
1758 dbg("%s - port %d", __FUNCTION__, port->number);
1759
1760 if (urb->status) {
1761 dbg("nonzero write bulk status received: %d", urb->status);
1762 return;
1763 }
1764
1765 schedule_work(&port->work);
1766 } /* ftdi_write_bulk_callback */
1767
1768
1769 static int ftdi_write_room( struct usb_serial_port *port )
1770 {
1771 dbg("%s - port %d", __FUNCTION__, port->number);
1772
1773 /*
1774 * We really can take anything the user throws at us
1775 * but let's pick a nice big number to tell the tty
1776 * layer that we have lots of free space
1777 */
1778 return 2048;
1779 } /* ftdi_write_room */
1780
1781
1782 static int ftdi_chars_in_buffer (struct usb_serial_port *port)
1783 { /* ftdi_chars_in_buffer */
1784 dbg("%s - port %d", __FUNCTION__, port->number);
1785
1786 /*
1787 * We can't really account for how much data we
1788 * have sent out, but hasn't made it through to the
1789 * device, so just tell the tty layer that everything
1790 * is flushed.
1791 */
1792 return 0;
1793 } /* ftdi_chars_in_buffer */
1794
1795
1796
1797 static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
1798 { /* ftdi_read_bulk_callback */
1799 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
1800 struct tty_struct *tty;
1801 struct ftdi_private *priv;
1802
1803 if (urb->number_of_packets > 0) {
1804 err("%s transfer_buffer_length %d actual_length %d number of packets %d",__FUNCTION__,
1805 urb->transfer_buffer_length, urb->actual_length, urb->number_of_packets );
1806 err("%s transfer_flags %x ", __FUNCTION__,urb->transfer_flags );
1807 }
1808
1809 dbg("%s - port %d", __FUNCTION__, port->number);
1810
1811 if (port->open_count <= 0)
1812 return;
1813
1814 tty = port->tty;
1815 if (!tty) {
1816 dbg("%s - bad tty pointer - exiting",__FUNCTION__);
1817 return;
1818 }
1819
1820 priv = usb_get_serial_port_data(port);
1821 if (!priv) {
1822 dbg("%s - bad port private data pointer - exiting", __FUNCTION__);
1823 return;
1824 }
1825
1826 if (urb != port->read_urb) {
1827 err("%s - Not my urb!", __FUNCTION__);
1828 }
1829
1830 if (urb->status) {
1831 /* This will happen at close every time so it is a dbg not an err */
1832 dbg("(this is ok on close) nonzero read bulk status received: %d", urb->status);
1833 return;
1834 }
1835
1836 /* If throttled, delay receive processing until unthrottled. */
1837 spin_lock(&priv->rx_lock);
1838 if (priv->rx_flags & THROTTLED) {
1839 dbg("Deferring read urb processing until unthrottled");
1840 priv->rx_flags |= ACTUALLY_THROTTLED;
1841 spin_unlock(&priv->rx_lock);
1842 return;
1843 }
1844 spin_unlock(&priv->rx_lock);
1845
1846 ftdi_process_read(port);
1847
1848 } /* ftdi_read_bulk_callback */
1849
1850
1851 static void ftdi_process_read (struct usb_serial_port *port)
1852 { /* ftdi_process_read */
1853 struct urb *urb;
1854 struct tty_struct *tty;
1855 struct ftdi_private *priv;
1856 char error_flag;
1857 unsigned char *data;
1858
1859 int i;
1860 int result;
1861 int need_flip;
1862 int packet_offset;
1863
1864 dbg("%s - port %d", __FUNCTION__, port->number);
1865
1866 if (port->open_count <= 0)
1867 return;
1868
1869 tty = port->tty;
1870 if (!tty) {
1871 dbg("%s - bad tty pointer - exiting",__FUNCTION__);
1872 return;
1873 }
1874
1875 priv = usb_get_serial_port_data(port);
1876 if (!priv) {
1877 dbg("%s - bad port private data pointer - exiting", __FUNCTION__);
1878 return;
1879 }
1880
1881 urb = port->read_urb;
1882 if (!urb) {
1883 dbg("%s - bad read_urb pointer - exiting", __FUNCTION__);
1884 return;
1885 }
1886
1887 data = urb->transfer_buffer;
1888
1889 /* The first two bytes of every read packet are status */
1890 if (urb->actual_length > 2) {
1891 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
1892 } else {
1893 dbg("Status only: %03oo %03oo",data[0],data[1]);
1894 }
1895
1896
1897 /* TO DO -- check for hung up line and handle appropriately: */
1898 /* send hangup */
1899 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1900 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1901
1902 need_flip = 0;
1903 for (packet_offset=0; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1904 /* Compare new line status to the old one, signal if different */
1905 if (priv != NULL) {
1906 char new_status = data[packet_offset+0] & FTDI_STATUS_B0_MASK;
1907 if (new_status != priv->prev_status) {
1908 priv->diff_status |= new_status ^ priv->prev_status;
1909 wake_up_interruptible(&priv->delta_msr_wait);
1910 priv->prev_status = new_status;
1911 }
1912 }
1913
1914 /* Handle errors and break */
1915 error_flag = TTY_NORMAL;
1916 /* Although the device uses a bitmask and hence can have multiple */
1917 /* errors on a packet - the order here sets the priority the */
1918 /* error is returned to the tty layer */
1919
1920 if ( data[packet_offset+1] & FTDI_RS_OE ) {
1921 error_flag = TTY_OVERRUN;
1922 dbg("OVERRRUN error");
1923 }
1924 if ( data[packet_offset+1] & FTDI_RS_BI ) {
1925 error_flag = TTY_BREAK;
1926 dbg("BREAK received");
1927 }
1928 if ( data[packet_offset+1] & FTDI_RS_PE ) {
1929 error_flag = TTY_PARITY;
1930 dbg("PARITY error");
1931 }
1932 if ( data[packet_offset+1] & FTDI_RS_FE ) {
1933 error_flag = TTY_FRAME;
1934 dbg("FRAMING error");
1935 }
1936 if (urb->actual_length > packet_offset + 2) {
1937 for (i = 2; (i < PKTSZ) && ((i+packet_offset) < urb->actual_length); ++i) {
1938 /* have to make sure we don't overflow the buffer
1939 with tty_insert_flip_char's */
1940 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1941 tty_flip_buffer_push(tty);
1942 }
1943 /* Note that the error flag is duplicated for
1944 every character received since we don't know
1945 which character it applied to */
1946 tty_insert_flip_char(tty, data[packet_offset+i], error_flag);
1947 }
1948 need_flip = 1;
1949 }
1950
1951 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1952 /* if a parity error is detected you get status packets forever
1953 until a character is sent without a parity error.
1954 This doesn't work well since the application receives a never
1955 ending stream of bad data - even though new data hasn't been sent.
1956 Therefore I (bill) have taken this out.
1957 However - this might make sense for framing errors and so on
1958 so I am leaving the code in for now.
1959 */
1960 else {
1961 if (error_flag != TTY_NORMAL){
1962 dbg("error_flag is not normal");
1963 /* In this case it is just status - if that is an error send a bad character */
1964 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1965 tty_flip_buffer_push(tty);
1966 }
1967 tty_insert_flip_char(tty, 0xff, error_flag);
1968 need_flip = 1;
1969 }
1970 }
1971 #endif
1972 } /* "for(packet_offset=0..." */
1973
1974 /* Low latency */
1975 if (need_flip) {
1976 tty_flip_buffer_push(tty);
1977 }
1978
1979 /* if the port is closed stop trying to read */
1980 if (port->open_count > 0){
1981 /* Continue trying to always read */
1982 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
1983 usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress),
1984 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1985 ftdi_read_bulk_callback, port);
1986
1987 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
1988 if (result)
1989 err("%s - failed resubmitting read urb, error %d", __FUNCTION__, result);
1990 }
1991
1992 return;
1993 } /* ftdi_process_read */
1994
1995
1996 static void ftdi_break_ctl( struct usb_serial_port *port, int break_state )
1997 {
1998 struct ftdi_private *priv = usb_get_serial_port_data(port);
1999 __u16 urb_value = 0;
2000 char buf[1];
2001
2002 /* break_state = -1 to turn on break, and 0 to turn off break */
2003 /* see drivers/char/tty_io.c to see it used */
2004 /* last_set_data_urb_value NEVER has the break bit set in it */
2005
2006 if (break_state) {
2007 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2008 } else {
2009 urb_value = priv->last_set_data_urb_value;
2010 }
2011
2012
2013 if (usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
2014 FTDI_SIO_SET_DATA_REQUEST,
2015 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2016 urb_value , priv->interface,
2017 buf, 0, WDR_TIMEOUT) < 0) {
2018 err("%s FAILED to enable/disable break state (state was %d)", __FUNCTION__,break_state);
2019 }
2020
2021 dbg("%s break state is %d - urb is %d", __FUNCTION__,break_state, urb_value);
2022
2023 }
2024
2025
2026 /* old_termios contains the original termios settings and tty->termios contains
2027 * the new setting to be used
2028 * WARNING: set_termios calls this with old_termios in kernel space
2029 */
2030
2031 static void ftdi_set_termios (struct usb_serial_port *port, struct termios *old_termios)
2032 { /* ftdi_termios */
2033 struct usb_device *dev = port->serial->dev;
2034 unsigned int cflag = port->tty->termios->c_cflag;
2035 struct ftdi_private *priv = usb_get_serial_port_data(port);
2036 __u16 urb_value; /* will hold the new flags */
2037 char buf[1]; /* Perhaps I should dynamically alloc this? */
2038
2039 // Added for xon/xoff support
2040 unsigned int iflag = port->tty->termios->c_iflag;
2041 unsigned char vstop;
2042 unsigned char vstart;
2043
2044 dbg("%s", __FUNCTION__);
2045
2046 /* Force baud rate if this device requires it, unless it is set to B0. */
2047 if (priv->force_baud && ((port->tty->termios->c_cflag & CBAUD) != B0)) {
2048 dbg("%s: forcing baud rate for this device", __FUNCTION__);
2049 port->tty->termios->c_cflag &= ~CBAUD;
2050 port->tty->termios->c_cflag |= priv->force_baud;
2051 }
2052
2053 /* Force RTS-CTS if this device requires it. */
2054 if (priv->force_rtscts) {
2055 dbg("%s: forcing rtscts for this device", __FUNCTION__);
2056 port->tty->termios->c_cflag |= CRTSCTS;
2057 }
2058
2059 cflag = port->tty->termios->c_cflag;
2060
2061 /* FIXME -For this cut I don't care if the line is really changing or
2062 not - so just do the change regardless - should be able to
2063 compare old_termios and tty->termios */
2064 /* NOTE These routines can get interrupted by
2065 ftdi_sio_read_bulk_callback - need to examine what this
2066 means - don't see any problems yet */
2067
2068 /* Set number of data bits, parity, stop bits */
2069
2070 urb_value = 0;
2071 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2072 FTDI_SIO_SET_DATA_STOP_BITS_1);
2073 urb_value |= (cflag & PARENB ?
2074 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2075 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2076 FTDI_SIO_SET_DATA_PARITY_NONE);
2077 if (cflag & CSIZE) {
2078 switch (cflag & CSIZE) {
2079 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2080 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2081 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2082 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2083 default:
2084 err("CSIZE was set but not CS5-CS8");
2085 }
2086 }
2087
2088 /* This is needed by the break command since it uses the same command - but is
2089 * or'ed with this value */
2090 priv->last_set_data_urb_value = urb_value;
2091
2092 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2093 FTDI_SIO_SET_DATA_REQUEST,
2094 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2095 urb_value , priv->interface,
2096 buf, 0, 100) < 0) {
2097 err("%s FAILED to set databits/stopbits/parity", __FUNCTION__);
2098 }
2099
2100 /* Now do the baudrate */
2101 if ((cflag & CBAUD) == B0 ) {
2102 /* Disable flow control */
2103 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2104 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2105 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2106 0, priv->interface,
2107 buf, 0, WDR_TIMEOUT) < 0) {
2108 err("%s error from disable flowcontrol urb", __FUNCTION__);
2109 }
2110 /* Drop RTS and DTR */
2111 if (set_dtr(port, LOW) < 0){
2112 err("%s Error from DTR LOW urb", __FUNCTION__);
2113 }
2114 if (set_rts(port, LOW) < 0){
2115 err("%s Error from RTS LOW urb", __FUNCTION__);
2116 }
2117
2118 } else {
2119 /* set the baudrate determined before */
2120 if (change_speed(port)) {
2121 err("%s urb failed to set baurdrate", __FUNCTION__);
2122 }
2123 /* Ensure RTS and DTR are raised */
2124 else if (set_dtr(port, HIGH) < 0){
2125 err("%s Error from DTR HIGH urb", __FUNCTION__);
2126 }
2127 else if (set_rts(port, HIGH) < 0){
2128 err("%s Error from RTS HIGH urb", __FUNCTION__);
2129 }
2130 }
2131
2132 /* Set flow control */
2133 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2134 if (cflag & CRTSCTS) {
2135 dbg("%s Setting to CRTSCTS flow control", __FUNCTION__);
2136 if (usb_control_msg(dev,
2137 usb_sndctrlpipe(dev, 0),
2138 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2139 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2140 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2141 buf, 0, WDR_TIMEOUT) < 0) {
2142 err("urb failed to set to rts/cts flow control");
2143 }
2144
2145 } else {
2146 /*
2147 * Xon/Xoff code
2148 *
2149 * Check the IXOFF status in the iflag component of the termios structure
2150 * if IXOFF is not set, the pre-xon/xoff code is executed.
2151 */
2152 if (iflag & IXOFF) {
2153 dbg("%s request to enable xonxoff iflag=%04x",__FUNCTION__,iflag);
2154 // Try to enable the XON/XOFF on the ftdi_sio
2155 // Set the vstart and vstop -- could have been done up above where
2156 // a lot of other dereferencing is done but that would be very
2157 // inefficient as vstart and vstop are not always needed
2158 vstart=port->tty->termios->c_cc[VSTART];
2159 vstop=port->tty->termios->c_cc[VSTOP];
2160 urb_value=(vstop << 8) | (vstart);
2161
2162 if (usb_control_msg(dev,
2163 usb_sndctrlpipe(dev, 0),
2164 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2165 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2166 urb_value , (FTDI_SIO_XON_XOFF_HS
2167 | priv->interface),
2168 buf, 0, WDR_TIMEOUT) < 0) {
2169 err("urb failed to set to xon/xoff flow control");
2170 }
2171 } else {
2172 /* else clause to only run if cfag ! CRTSCTS and iflag ! XOFF */
2173 /* CHECKME Assuming XON/XOFF handled by tty stack - not by device */
2174 dbg("%s Turning off hardware flow control", __FUNCTION__);
2175 if (usb_control_msg(dev,
2176 usb_sndctrlpipe(dev, 0),
2177 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2178 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2179 0, priv->interface,
2180 buf, 0, WDR_TIMEOUT) < 0) {
2181 err("urb failed to clear flow control");
2182 }
2183 }
2184
2185 }
2186 return;
2187 } /* ftdi_termios */
2188
2189
2190 static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file)
2191 {
2192 struct ftdi_private *priv = usb_get_serial_port_data(port);
2193 unsigned char buf[2];
2194 int ret;
2195
2196 dbg("%s TIOCMGET", __FUNCTION__);
2197 switch (priv->chip_type) {
2198 case SIO:
2199 /* Request the status from the device */
2200 if ((ret = usb_control_msg(port->serial->dev,
2201 usb_rcvctrlpipe(port->serial->dev, 0),
2202 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2203 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2204 0, 0,
2205 buf, 1, WDR_TIMEOUT)) < 0 ) {
2206 err("%s Could not get modem status of device - err: %d", __FUNCTION__,
2207 ret);
2208 return(ret);
2209 }
2210 break;
2211 case FT8U232AM:
2212 case FT232BM:
2213 case FT2232C:
2214 /* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same
2215 format as the data returned from the in point */
2216 if ((ret = usb_control_msg(port->serial->dev,
2217 usb_rcvctrlpipe(port->serial->dev, 0),
2218 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2219 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2220 0, priv->interface,
2221 buf, 2, WDR_TIMEOUT)) < 0 ) {
2222 err("%s Could not get modem status of device - err: %d", __FUNCTION__,
2223 ret);
2224 return(ret);
2225 }
2226 break;
2227 default:
2228 return -EFAULT;
2229 break;
2230 }
2231
2232 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2233 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2234 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2235 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2236 priv->last_dtr_rts;
2237 }
2238
2239 static int ftdi_tiocmset(struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear)
2240 {
2241 int ret;
2242
2243 dbg("%s TIOCMSET", __FUNCTION__);
2244 if (set & TIOCM_DTR){
2245 if ((ret = set_dtr(port, HIGH)) < 0) {
2246 err("Urb to set DTR failed");
2247 return(ret);
2248 }
2249 }
2250 if (set & TIOCM_RTS) {
2251 if ((ret = set_rts(port, HIGH)) < 0){
2252 err("Urb to set RTS failed");
2253 return(ret);
2254 }
2255 }
2256
2257 if (clear & TIOCM_DTR){
2258 if ((ret = set_dtr(port, LOW)) < 0){
2259 err("Urb to unset DTR failed");
2260 return(ret);
2261 }
2262 }
2263 if (clear & TIOCM_RTS) {
2264 if ((ret = set_rts(port, LOW)) < 0){
2265 err("Urb to unset RTS failed");
2266 return(ret);
2267 }
2268 }
2269 return(0);
2270 }
2271
2272
2273 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
2274 {
2275 struct ftdi_private *priv = usb_get_serial_port_data(port);
2276
2277 int ret, mask;
2278
2279 dbg("%s cmd 0x%04x", __FUNCTION__, cmd);
2280
2281 /* Based on code from acm.c and others */
2282 switch (cmd) {
2283
2284 case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
2285 dbg("%s TIOCMBIS", __FUNCTION__);
2286 if (get_user(mask, (unsigned long __user *) arg))
2287 return -EFAULT;
2288 if (mask & TIOCM_DTR){
2289 if ((ret = set_dtr(port, HIGH)) < 0) {
2290 err("Urb to set DTR failed");
2291 return(ret);
2292 }
2293 }
2294 if (mask & TIOCM_RTS) {
2295 if ((ret = set_rts(port, HIGH)) < 0){
2296 err("Urb to set RTS failed");
2297 return(ret);
2298 }
2299 }
2300 return(0);
2301 break;
2302
2303 case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
2304 dbg("%s TIOCMBIC", __FUNCTION__);
2305 if (get_user(mask, (unsigned long __user *) arg))
2306 return -EFAULT;
2307 if (mask & TIOCM_DTR){
2308 if ((ret = set_dtr(port, LOW)) < 0){
2309 err("Urb to unset DTR failed");
2310 return(ret);
2311 }
2312 }
2313 if (mask & TIOCM_RTS) {
2314 if ((ret = set_rts(port, LOW)) < 0){
2315 err("Urb to unset RTS failed");
2316 return(ret);
2317 }
2318 }
2319 return(0);
2320 break;
2321
2322 /*
2323 * I had originally implemented TCSET{A,S}{,F,W} and
2324 * TCGET{A,S} here separately, however when testing I
2325 * found that the higher layers actually do the termios
2326 * conversions themselves and pass the call onto
2327 * ftdi_sio_set_termios.
2328 *
2329 */
2330
2331 case TIOCGSERIAL: /* gets serial port data */
2332 return get_serial_info(port, (struct serial_struct __user *) arg);
2333
2334 case TIOCSSERIAL: /* sets serial port data */
2335 return set_serial_info(port, (struct serial_struct __user *) arg);
2336
2337 /*
2338 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2339 * - mask passed in arg for lines of interest
2340 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2341 * Caller should use TIOCGICOUNT to see which one it was.
2342 *
2343 * This code is borrowed from linux/drivers/char/serial.c
2344 */
2345 case TIOCMIWAIT:
2346 while (priv != NULL) {
2347 interruptible_sleep_on(&priv->delta_msr_wait);
2348 /* see if a signal did it */
2349 if (signal_pending(current))
2350 return -ERESTARTSYS;
2351 else {
2352 char diff = priv->diff_status;
2353
2354 if (diff == 0) {
2355 return -EIO; /* no change => error */
2356 }
2357
2358 /* Consume all events */
2359 priv->diff_status = 0;
2360
2361 /* Return 0 if caller wanted to know about these bits */
2362 if ( ((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2363 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2364 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2365 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS)) ) {
2366 return 0;
2367 }
2368 /*
2369 * Otherwise caller can't care less about what happened,
2370 * and so we continue to wait for more events.
2371 */
2372 }
2373 }
2374 return(0);
2375 break;
2376 default:
2377 break;
2378
2379 }
2380
2381
2382 /* This is not necessarily an error - turns out the higher layers will do
2383 * some ioctls itself (see comment above)
2384 */
2385 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __FUNCTION__, cmd);
2386
2387 return(-ENOIOCTLCMD);
2388 } /* ftdi_ioctl */
2389
2390
2391 static void ftdi_throttle (struct usb_serial_port *port)
2392 {
2393 struct ftdi_private *priv = usb_get_serial_port_data(port);
2394 unsigned long flags;
2395
2396 dbg("%s - port %d", __FUNCTION__, port->number);
2397
2398 spin_lock_irqsave(&priv->rx_lock, flags);
2399 priv->rx_flags |= THROTTLED;
2400 spin_unlock_irqrestore(&priv->rx_lock, flags);
2401 }
2402
2403
2404 static void ftdi_unthrottle (struct usb_serial_port *port)
2405 {
2406 struct ftdi_private *priv = usb_get_serial_port_data(port);
2407 int actually_throttled;
2408 unsigned long flags;
2409
2410 dbg("%s - port %d", __FUNCTION__, port->number);
2411
2412 spin_lock_irqsave(&priv->rx_lock, flags);
2413 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2414 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2415 spin_unlock_irqrestore(&priv->rx_lock, flags);
2416
2417 if (actually_throttled)
2418 ftdi_process_read(port);
2419 }
2420
2421 static int __init ftdi_init (void)
2422 {
2423 int retval;
2424
2425 dbg("%s", __FUNCTION__);
2426 retval = usb_serial_register(&ftdi_SIO_device);
2427 if (retval)
2428 goto failed_SIO_register;
2429 retval = usb_serial_register(&ftdi_8U232AM_device);
2430 if (retval)
2431 goto failed_8U232AM_register;
2432 retval = usb_serial_register(&ftdi_FT232BM_device);
2433 if (retval)
2434 goto failed_FT232BM_register;
2435 retval = usb_serial_register(&ftdi_FT2232C_device);
2436 if (retval)
2437 goto failed_FT2232C_register;
2438 retval = usb_serial_register(&ftdi_USB_UIRT_device);
2439 if (retval)
2440 goto failed_USB_UIRT_register;
2441 retval = usb_serial_register(&ftdi_HE_TIRA1_device);
2442 if (retval)
2443 goto failed_HE_TIRA1_register;
2444 retval = usb_register(&ftdi_driver);
2445 if (retval)
2446 goto failed_usb_register;
2447
2448 info(DRIVER_VERSION ":" DRIVER_DESC);
2449 return 0;
2450 failed_usb_register:
2451 usb_serial_deregister(&ftdi_HE_TIRA1_device);
2452 failed_HE_TIRA1_register:
2453 usb_serial_deregister(&ftdi_USB_UIRT_device);
2454 failed_USB_UIRT_register:
2455 usb_serial_deregister(&ftdi_FT2232C_device);
2456 failed_FT2232C_register:
2457 usb_serial_deregister(&ftdi_FT232BM_device);
2458 failed_FT232BM_register:
2459 usb_serial_deregister(&ftdi_8U232AM_device);
2460 failed_8U232AM_register:
2461 usb_serial_deregister(&ftdi_SIO_device);
2462 failed_SIO_register:
2463 return retval;
2464 }
2465
2466
2467 static void __exit ftdi_exit (void)
2468 {
2469
2470 dbg("%s", __FUNCTION__);
2471
2472 usb_deregister (&ftdi_driver);
2473 usb_serial_deregister (&ftdi_HE_TIRA1_device);
2474 usb_serial_deregister (&ftdi_USB_UIRT_device);
2475 usb_serial_deregister (&ftdi_FT2232C_device);
2476 usb_serial_deregister (&ftdi_FT232BM_device);
2477 usb_serial_deregister (&ftdi_8U232AM_device);
2478 usb_serial_deregister (&ftdi_SIO_device);
2479
2480 }
2481
2482
2483 module_init(ftdi_init);
2484 module_exit(ftdi_exit);
2485
2486 MODULE_AUTHOR( DRIVER_AUTHOR );
2487 MODULE_DESCRIPTION( DRIVER_DESC );
2488 MODULE_LICENSE("GPL");
2489
2490 module_param(debug, bool, S_IRUGO | S_IWUSR);
2491 MODULE_PARM_DESC(debug, "Debug enabled or not");
2492
Linux kernel - Deliverables
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