4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
6 * Bill Ryder (bryder@sgi.com)
8 * Kuba Ober (kuba@mareimbrium.org)
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * See Documentation/usb/usb-serial.txt for more information on using this driver
17 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
18 * and extra documentation
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.
25 * (27/May/2004) Ian Abbott
26 * Improved throttling code, mostly stolen from the WhiteHEAT driver.
28 * (26/Mar/2004) Jan Capek
29 * Added PID's for ICD-U20/ICD-U40 - incircuit PIC debuggers from CCS Inc.
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.
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.
42 * (17/Oct/2003) Scott Allen
43 * Added vid/pid for Perle Systems UltraPort USB serial converters
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.
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.
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.
59 * (23/Jul/2003) Ian Abbott
60 * Added PIDs for CrystalFontz 547, 633, 631, 635, 640 and 640 from
63 * (10/Jul/2003) David Glance
64 * Added PID for DSS-20 SyncStation cradle for Sony-Ericsson P800.
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.
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.
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.
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.
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.
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
104 * (11/Jun/2003) Ian Abbott
105 * Fixed unsafe spinlock usage in ftdi_write
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)
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)
115 * (23/Feb/2003) Bill Ryder
116 * Added matrix orb device vid/pids from Wayne Wylupski
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.
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
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.
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
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
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.
159 * (25/Jul/2002) Bill Ryder inserted Dmitri's TIOCMIWAIT patch
160 * Not tested by me but it doesn't break anything I use.
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
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 ;-].
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
184 * Switched from using spinlock to a semaphore, which fixes lots of problems.
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.
193 * Identify version on module load.
195 * (18/March/2001) Bill Ryder
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
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.
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
215 * (11/01/2000) Adam J. Richter
216 * usb_device_id table support
219 * Fixed bug with urb->dev not being set properly, now that the usb
223 * Removed DEBUG #ifdefs with call to usb_serial_debug_data
226 * Added module_init and module_exit functions to handle the fact that this
227 * driver is a loadable module now.
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).
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
239 * Split driver up into device specific pieces.
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 :-) */
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"
265 * Version Information
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"
273 static struct usb_device_id id_table_sio
[] = {
274 { USB_DEVICE(FTDI_VID
, FTDI_SIO_PID
) },
275 { } /* Terminating entry */
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
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)
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]
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 */
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 */
497 static struct usb_device_id id_table_USB_UIRT
[] = {
498 { USB_DEVICE(FTDI_VID
, FTDI_USB_UIRT_PID
) },
499 { } /* Terminating entry */
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 */
509 static struct usb_device_id id_table_FT2232C
[] = {
510 { USB_DEVICE(FTDI_VID
, FTDI_8U2232C_PID
) },
511 { } /* Terminating entry */
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 */
620 MODULE_DEVICE_TABLE (usb
, id_table_combined
);
622 static struct usb_driver ftdi_driver
= {
624 .probe
= usb_serial_probe
,
625 .disconnect
= usb_serial_disconnect
,
626 .id_table
= id_table_combined
,
629 static char *ftdi_chip_name
[] = {
630 [SIO
] = "SIO", /* the serial part of FT8U100AX */
631 [FT8U232AM
] = "FT8U232AM",
632 [FT232BM
] = "FT232BM",
633 [FT2232C
] = "FT2232C",
637 /* Constants for read urb and write urb */
642 #define THROTTLED 0x01
643 #define ACTUALLY_THROTTLED 0x02
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
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 */
662 __u16 interface
; /* FT2232C port interface (0 for FT232/245) */
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 */
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)
673 #define FTDI_IMPL_ASYNC_FLAGS = ( ASYNC_SPD_HI | ASYNC_SPD_VHI \
674 ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP )
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
);
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
);
705 static struct usb_serial_device_type ftdi_SIO_device
= {
706 .owner
= THIS_MODULE
,
708 .id_table
= id_table_sio
,
709 .num_interrupt_in
= 0,
715 .throttle
= ftdi_throttle
,
716 .unthrottle
= ftdi_unthrottle
,
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
,
725 .set_termios
= ftdi_set_termios
,
726 .break_ctl
= ftdi_break_ctl
,
727 .attach
= ftdi_SIO_startup
,
728 .shutdown
= ftdi_shutdown
,
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,
741 .throttle
= ftdi_throttle
,
742 .unthrottle
= ftdi_unthrottle
,
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
,
751 .set_termios
= ftdi_set_termios
,
752 .break_ctl
= ftdi_break_ctl
,
753 .attach
= ftdi_8U232AM_startup
,
754 .shutdown
= ftdi_shutdown
,
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,
767 .throttle
= ftdi_throttle
,
768 .unthrottle
= ftdi_unthrottle
,
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
,
777 .set_termios
= ftdi_set_termios
,
778 .break_ctl
= ftdi_break_ctl
,
779 .attach
= ftdi_FT232BM_startup
,
780 .shutdown
= ftdi_shutdown
,
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,
793 .throttle
= ftdi_throttle
,
794 .unthrottle
= ftdi_unthrottle
,
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
,
803 .set_termios
= ftdi_set_termios
,
804 .break_ctl
= ftdi_break_ctl
,
805 .attach
= ftdi_FT2232C_startup
,
806 .shutdown
= ftdi_shutdown
,
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,
819 .throttle
= ftdi_throttle
,
820 .unthrottle
= ftdi_unthrottle
,
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
,
829 .set_termios
= ftdi_set_termios
,
830 .break_ctl
= ftdi_break_ctl
,
831 .attach
= ftdi_USB_UIRT_startup
,
832 .shutdown
= ftdi_shutdown
,
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,
847 .throttle
= ftdi_throttle
,
848 .unthrottle
= ftdi_unthrottle
,
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
,
857 .set_termios
= ftdi_set_termios
,
858 .break_ctl
= ftdi_break_ctl
,
859 .attach
= ftdi_HE_TIRA1_startup
,
860 .shutdown
= ftdi_shutdown
,
865 #define WDR_TIMEOUT 5000 /* default urb timeout */
867 /* High and low are for DTR, RTS etc etc */
872 * ***************************************************************************
874 * ***************************************************************************
877 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud
, int base
)
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;
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 */
891 static unsigned short int ftdi_232am_baud_to_divisor(int baud
)
893 return(ftdi_232am_baud_base_to_divisor(baud
, 48000000));
896 static __u32
ftdi_232bm_baud_base_to_divisor(int baud
, int base
)
898 static const unsigned char divfrac
[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
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
909 static __u32
ftdi_232bm_baud_to_divisor(int baud
)
911 return(ftdi_232bm_baud_base_to_divisor(baud
, 48000000));
914 static int set_rts(struct usb_serial_port
*port
, int high_or_low
)
916 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
918 unsigned ftdi_high_or_low
;
921 buf
= kmalloc(1, GFP_NOIO
);
926 ftdi_high_or_low
= FTDI_SIO_SET_RTS_HIGH
;
927 priv
->last_dtr_rts
|= TIOCM_RTS
;
929 ftdi_high_or_low
= FTDI_SIO_SET_RTS_LOW
;
930 priv
->last_dtr_rts
&= ~TIOCM_RTS
;
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
);
944 static int set_dtr(struct usb_serial_port
*port
, int high_or_low
)
946 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
948 unsigned ftdi_high_or_low
;
951 buf
= kmalloc(1, GFP_NOIO
);
956 ftdi_high_or_low
= FTDI_SIO_SET_DTR_HIGH
;
957 priv
->last_dtr_rts
|= TIOCM_DTR
;
959 ftdi_high_or_low
= FTDI_SIO_SET_DTR_LOW
;
960 priv
->last_dtr_rts
&= ~TIOCM_DTR
;
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
);
974 static __u32
get_ftdi_divisor(struct usb_serial_port
* port
);
977 static int change_speed(struct usb_serial_port
*port
)
979 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
983 __u32 urb_index_value
;
986 buf
= kmalloc(1, GFP_NOIO
);
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
);
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
,
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;
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.
1039 /* 1. Get the baud rate from the tty settings, this observes alt_speed hack */
1041 baud
= tty_get_baud_rate(port
->tty
);
1042 dbg("%s - tty_get_baud_rate reports speed %d", __FUNCTION__
, baud
);
1044 /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */
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
);
1053 /* 3. Convert baudrate to device-specific divisor */
1055 if (!baud
) baud
= 9600;
1056 switch(priv
->chip_type
) {
1057 case SIO
: /* SIO chip */
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;
1070 if (div_value
== 0) {
1071 dbg("%s - Baudrate (%d) requested is not supported", __FUNCTION__
, baud
);
1072 div_value
= ftdi_sio_b9600
;
1076 case FT8U232AM
: /* 8U232AM chip */
1077 if (baud
<= 3000000) {
1078 div_value
= ftdi_232am_baud_to_divisor(baud
);
1080 dbg("%s - Baud rate too high!", __FUNCTION__
);
1081 div_value
= ftdi_232am_baud_to_divisor(9600);
1085 case FT232BM
: /* FT232BM chip */
1086 case FT2232C
: /* FT2232C chip */
1087 if (baud
<= 3000000) {
1088 div_value
= ftdi_232bm_baud_to_divisor(baud
);
1090 dbg("%s - Baud rate too high!", __FUNCTION__
);
1091 div_value
= ftdi_232bm_baud_to_divisor(9600);
1095 } /* priv->chip_type */
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
]);
1107 static int get_serial_info(struct usb_serial_port
* port
, struct serial_struct __user
* retinfo
)
1109 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
1110 struct serial_struct tmp
;
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
)))
1121 } /* get_serial_info */
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
;
1130 if (copy_from_user(&new_serial
, newinfo
, sizeof(new_serial
)))
1134 /* Do error checking and permission checking */
1136 if (!capable(CAP_SYS_ADMIN
)) {
1137 if (((new_serial
.flags
& ~ASYNC_USR_MASK
) !=
1138 (priv
->flags
& ~ASYNC_USR_MASK
)))
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
;
1146 if ((new_serial
.baud_base
!= priv
->baud_base
) &&
1147 (new_serial
.baud_base
< 9600))
1150 /* Make the changes - these are privileged changes! */
1152 priv
->flags
= ((priv
->flags
& ~ASYNC_FLAGS
) |
1153 (new_serial
.flags
& ASYNC_FLAGS
));
1154 priv
->custom_divisor
= new_serial
.custom_divisor
;
1156 port
->tty
->low_latency
= (priv
->flags
& ASYNC_LOW_LATENCY
) ? 1 : 0;
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;
1170 port
->tty
->alt_speed
= 0;
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
))) {
1181 } /* set_serial_info */
1185 * ***************************************************************************
1187 * ***************************************************************************
1190 static ssize_t
show_latency_timer(struct device
*dev
, char *buf
)
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;
1198 udev
= to_usb_device(dev
);
1200 dbg("%s",__FUNCTION__
);
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
,
1207 (char*) &latency
, 1, WDR_TIMEOUT
);
1210 dev_err(dev
, "Unable to read latency timer: %i", rv
);
1213 return sprintf(buf
, "%i\n", latency
);
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
,
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
;
1224 int v
= simple_strtoul(valbuf
, NULL
, 10);
1227 udev
= to_usb_device(dev
);
1229 dbg("%s: setting latency timer = %i", __FUNCTION__
, v
);
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
,
1236 buf
, 0, WDR_TIMEOUT
);
1239 dev_err(dev
, "Unable to write latency timer: %i", rv
);
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
,
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
;
1255 int v
= simple_strtoul(valbuf
, NULL
, 10);
1258 udev
= to_usb_device(dev
);
1260 dbg("%s: setting event char = %i", __FUNCTION__
, v
);
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
,
1267 buf
, 0, WDR_TIMEOUT
);
1270 dbg("Unable to write event character: %i", rv
);
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
);
1280 static void create_sysfs_attrs(struct usb_serial
*serial
)
1282 struct ftdi_private
*priv
;
1283 struct usb_device
*udev
;
1285 dbg("%s",__FUNCTION__
);
1287 priv
= usb_get_serial_port_data(serial
->port
[0]);
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
);
1301 static void remove_sysfs_attrs(struct usb_serial
*serial
)
1303 struct ftdi_private
*priv
;
1304 struct usb_device
*udev
;
1306 dbg("%s",__FUNCTION__
);
1308 priv
= usb_get_serial_port_data(serial
->port
[0]);
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
);
1322 * ***************************************************************************
1323 * FTDI driver specific functions
1324 * ***************************************************************************
1327 /* Common startup subroutine */
1328 /* Called from ftdi_SIO_startup, etc. */
1329 static int ftdi_common_startup (struct usb_serial
*serial
)
1331 struct usb_serial_port
*port
= serial
->port
[0];
1332 struct ftdi_private
*priv
;
1334 dbg("%s",__FUNCTION__
);
1336 priv
= kmalloc(sizeof(struct ftdi_private
), GFP_KERNEL
);
1338 err("%s- kmalloc(%Zd) failed.", __FUNCTION__
, sizeof(struct ftdi_private
));
1341 memset(priv
, 0, sizeof(*priv
));
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
;
1349 /* Increase the size of read buffers */
1350 if (port
->bulk_in_buffer
) {
1351 kfree (port
->bulk_in_buffer
);
1353 port
->bulk_in_buffer
= kmalloc (BUFSZ
, GFP_KERNEL
);
1354 if (!port
->bulk_in_buffer
) {
1358 if (port
->read_urb
) {
1359 port
->read_urb
->transfer_buffer
= port
->bulk_in_buffer
;
1360 port
->read_urb
->transfer_buffer_length
= BUFSZ
;
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
;
1368 if (port
->bulk_out_buffer
) {
1369 kfree (port
->bulk_out_buffer
);
1370 port
->bulk_out_buffer
= NULL
;
1373 usb_set_serial_port_data(serial
->port
[0], priv
);
1379 /* Startup for the SIO chip */
1380 /* Called from usbserial:serial_probe */
1381 static int ftdi_SIO_startup (struct usb_serial
*serial
)
1383 struct ftdi_private
*priv
;
1386 dbg("%s",__FUNCTION__
);
1388 err
= ftdi_common_startup(serial
);
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;
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
;
1408 dbg("%s",__FUNCTION__
);
1409 err
= ftdi_common_startup(serial
);
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! */
1418 create_sysfs_attrs(serial
);
1421 } /* ftdi_8U232AM_startup */
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
;
1430 dbg("%s",__FUNCTION__
);
1431 err
= ftdi_common_startup(serial
);
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! */
1440 create_sysfs_attrs(serial
);
1443 } /* ftdi_FT232BM_startup */
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
;
1453 dbg("%s",__FUNCTION__
);
1454 err
= ftdi_common_startup(serial
);
1459 priv
= usb_get_serial_port_data(serial
->port
[0]);
1460 priv
->chip_type
= FT2232C
;
1461 inter
= serial
->interface
->altsetting
->desc
.bInterfaceNumber
;
1464 priv
->interface
= INTERFACE_B
;
1467 priv
->interface
= INTERFACE_A
;
1469 priv
->baud_base
= 48000000 / 2; /* Would be / 16, but FT2232C supports multiple of 0.125 divisor fractions! */
1471 create_sysfs_attrs(serial
);
1474 } /* ftdi_FT2232C_startup */
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
;
1483 dbg("%s",__FUNCTION__
);
1484 err
= ftdi_8U232AM_startup(serial
);
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
;
1495 } /* ftdi_USB_UIRT_startup */
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
;
1504 dbg("%s",__FUNCTION__
);
1505 err
= ftdi_FT232BM_startup(serial
);
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;
1517 } /* ftdi_HE_TIRA1_startup */
1520 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1521 * it is called when the usb device is disconnected
1523 * usbserial:usb_serial_disconnect
1524 * calls __serial_close for each open of the port
1525 * shutdown is called then (ie ftdi_shutdown)
1529 static void ftdi_shutdown (struct usb_serial
*serial
)
1530 { /* ftdi_shutdown */
1532 struct usb_serial_port
*port
= serial
->port
[0];
1533 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
1535 dbg("%s", __FUNCTION__
);
1537 remove_sysfs_attrs(serial
);
1539 /* all open ports are closed at this point
1540 * (by usbserial.c:__serial_close, which calls ftdi_close)
1544 usb_set_serial_port_data(port
, NULL
);
1547 } /* ftdi_shutdown */
1550 static int ftdi_open (struct usb_serial_port
*port
, struct file
*filp
)
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
;
1558 char buf
[1]; /* Needed for the usb_control_msg I think */
1560 dbg("%s", __FUNCTION__
);
1563 port
->tty
->low_latency
= (priv
->flags
& ASYNC_LOW_LATENCY
) ? 1 : 0;
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
,
1570 priv
->interface
, buf
, 0, WDR_TIMEOUT
);
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 */
1576 /* ftdi_set_termios will send usb control messages */
1577 ftdi_set_termios(port
, &tmp_termios
);
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__
);
1585 if (set_rts(port
, HIGH
) < 0){
1586 err("%s Error from RTS HIGH urb", __FUNCTION__
);
1590 spin_lock_irqsave(&priv
->rx_lock
, flags
);
1591 priv
->rx_flags
&= ~(THROTTLED
| ACTUALLY_THROTTLED
);
1592 spin_unlock_irqrestore(&priv
->rx_lock
, flags
);
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
);
1601 err("%s - failed submitting read urb, error %d", __FUNCTION__
, result
);
1610 * usbserial:__serial_close only calls ftdi_close if the point is open
1612 * This only gets called when it is the last close
1617 static void ftdi_close (struct usb_serial_port
*port
, struct file
*filp
)
1619 unsigned int c_cflag
= port
->tty
->termios
->c_cflag
;
1620 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
1623 dbg("%s", __FUNCTION__
);
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,
1633 err("error from flowcontrol urb");
1637 if (set_dtr(port
, LOW
) < 0){
1638 err("Error from DTR LOW urb");
1641 if (set_rts(port
, LOW
) < 0) {
1642 err("Error from RTS LOW urb");
1644 } /* Note change no line if hupcl is off */
1646 /* shutdown our bulk read */
1648 usb_kill_urb(port
->read_urb
);
1653 /* The SIO requires the first byte to have:
1656 * B2..7 length of message excluding byte 0
1658 * The new devices do not require this byte
1660 static int ftdi_write (struct usb_serial_port
*port
,
1661 const unsigned char *buf
, int count
)
1663 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
1665 unsigned char *buffer
;
1666 int data_offset
; /* will be 1 for the SIO and 0 otherwise */
1670 dbg("%s port %d, %d bytes", __FUNCTION__
, port
->number
, count
);
1673 dbg("write request of 0 bytes");
1677 data_offset
= priv
->write_offset
;
1678 dbg("data_offset set to %d",data_offset
);
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
)));
1689 buffer
= kmalloc (transfer_size
, GFP_ATOMIC
);
1691 err("%s ran out of kernel memory for urb ...", __FUNCTION__
);
1695 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
1697 err("%s - no more free urbs", __FUNCTION__
);
1703 if (data_offset
> 0) {
1704 /* Original sio requires control byte at start of each packet. */
1705 int user_pktsz
= PKTSZ
- data_offset
;
1707 unsigned char *first_byte
= buffer
;
1708 const unsigned char *current_position
= buf
;
1711 if (user_pktsz
> todo
) {
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
;
1724 /* No control byte required. */
1725 /* Copy in the data to send */
1726 memcpy (buffer
, buf
, count
);
1729 usb_serial_debug_data(debug
, &port
->dev
, __FUNCTION__
, transfer_size
, buffer
);
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
);
1737 status
= usb_submit_urb(urb
, GFP_ATOMIC
);
1739 err("%s - failed submitting write urb, error %d", __FUNCTION__
, status
);
1744 /* we are done with this urb, so let the host driver
1745 * really free it when it is finished with it */
1748 dbg("%s write returning: %d", __FUNCTION__
, count
);
1753 /* This function may get called when the device is closed */
1755 static void ftdi_write_bulk_callback (struct urb
*urb
, struct pt_regs
*regs
)
1757 struct usb_serial_port
*port
= (struct usb_serial_port
*)urb
->context
;
1759 /* free up the transfer buffer, as usb_free_urb() does not do this */
1760 kfree (urb
->transfer_buffer
);
1762 dbg("%s - port %d", __FUNCTION__
, port
->number
);
1765 dbg("nonzero write bulk status received: %d", urb
->status
);
1769 schedule_work(&port
->work
);
1770 } /* ftdi_write_bulk_callback */
1773 static int ftdi_write_room( struct usb_serial_port
*port
)
1775 dbg("%s - port %d", __FUNCTION__
, port
->number
);
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
1783 } /* ftdi_write_room */
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
);
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
1797 } /* ftdi_chars_in_buffer */
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
;
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
);
1813 dbg("%s - port %d", __FUNCTION__
, port
->number
);
1815 if (port
->open_count
<= 0)
1820 dbg("%s - bad tty pointer - exiting",__FUNCTION__
);
1824 priv
= usb_get_serial_port_data(port
);
1826 dbg("%s - bad port private data pointer - exiting", __FUNCTION__
);
1830 if (urb
!= port
->read_urb
) {
1831 err("%s - Not my urb!", __FUNCTION__
);
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
);
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
);
1848 spin_unlock(&priv
->rx_lock
);
1850 ftdi_process_read(port
);
1852 } /* ftdi_read_bulk_callback */
1855 static void ftdi_process_read (struct usb_serial_port
*port
)
1856 { /* ftdi_process_read */
1858 struct tty_struct
*tty
;
1859 struct ftdi_private
*priv
;
1861 unsigned char *data
;
1868 dbg("%s - port %d", __FUNCTION__
, port
->number
);
1870 if (port
->open_count
<= 0)
1875 dbg("%s - bad tty pointer - exiting",__FUNCTION__
);
1879 priv
= usb_get_serial_port_data(port
);
1881 dbg("%s - bad port private data pointer - exiting", __FUNCTION__
);
1885 urb
= port
->read_urb
;
1887 dbg("%s - bad read_urb pointer - exiting", __FUNCTION__
);
1891 data
= urb
->transfer_buffer
;
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
);
1897 dbg("Status only: %03oo %03oo",data
[0],data
[1]);
1901 /* TO DO -- check for hung up line and handle appropriately: */
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 */
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 */
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
;
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 */
1924 if ( data
[packet_offset
+1] & FTDI_RS_OE
) {
1925 error_flag
= TTY_OVERRUN
;
1926 dbg("OVERRRUN error");
1928 if ( data
[packet_offset
+1] & FTDI_RS_BI
) {
1929 error_flag
= TTY_BREAK
;
1930 dbg("BREAK received");
1932 if ( data
[packet_offset
+1] & FTDI_RS_PE
) {
1933 error_flag
= TTY_PARITY
;
1934 dbg("PARITY error");
1936 if ( data
[packet_offset
+1] & FTDI_RS_FE
) {
1937 error_flag
= TTY_FRAME
;
1938 dbg("FRAMING error");
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
);
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
);
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.
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
);
1971 tty_insert_flip_char(tty
, 0xff, error_flag
);
1976 } /* "for(packet_offset=0..." */
1980 tty_flip_buffer_push(tty
);
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
);
1991 result
= usb_submit_urb(port
->read_urb
, GFP_ATOMIC
);
1993 err("%s - failed resubmitting read urb, error %d", __FUNCTION__
, result
);
1997 } /* ftdi_process_read */
2000 static void ftdi_break_ctl( struct usb_serial_port
*port
, int break_state
)
2002 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
2003 __u16 urb_value
= 0;
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 */
2011 urb_value
= priv
->last_set_data_urb_value
| FTDI_SIO_SET_BREAK
;
2013 urb_value
= priv
->last_set_data_urb_value
;
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
);
2025 dbg("%s break state is %d - urb is %d", __FUNCTION__
,break_state
, urb_value
);
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
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? */
2043 // Added for xon/xoff support
2044 unsigned int iflag
= port
->tty
->termios
->c_iflag
;
2045 unsigned char vstop
;
2046 unsigned char vstart
;
2048 dbg("%s", __FUNCTION__
);
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
;
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
;
2063 cflag
= port
->tty
->termios
->c_cflag
;
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 */
2072 /* Set number of data bits, parity, stop bits */
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;
2088 err("CSIZE was set but not CS5-CS8");
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
;
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
,
2101 err("%s FAILED to set databits/stopbits/parity", __FUNCTION__
);
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
,
2111 buf
, 0, WDR_TIMEOUT
) < 0) {
2112 err("%s error from disable flowcontrol urb", __FUNCTION__
);
2114 /* Drop RTS and DTR */
2115 if (set_dtr(port
, LOW
) < 0){
2116 err("%s Error from DTR LOW urb", __FUNCTION__
);
2118 if (set_rts(port
, LOW
) < 0){
2119 err("%s Error from RTS LOW urb", __FUNCTION__
);
2123 /* set the baudrate determined before */
2124 if (change_speed(port
)) {
2125 err("%s urb failed to set baurdrate", __FUNCTION__
);
2127 /* Ensure RTS and DTR are raised */
2128 else if (set_dtr(port
, HIGH
) < 0){
2129 err("%s Error from DTR HIGH urb", __FUNCTION__
);
2131 else if (set_rts(port
, HIGH
) < 0){
2132 err("%s Error from RTS HIGH urb", __FUNCTION__
);
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");
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.
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
);
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
2172 buf
, 0, WDR_TIMEOUT
) < 0) {
2173 err("urb failed to set to xon/xoff flow control");
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
,
2184 buf
, 0, WDR_TIMEOUT
) < 0) {
2185 err("urb failed to clear flow control");
2191 } /* ftdi_termios */
2194 static int ftdi_tiocmget (struct usb_serial_port
*port
, struct file
*file
)
2196 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
2197 unsigned char buf
[2];
2200 dbg("%s TIOCMGET", __FUNCTION__
);
2201 switch (priv
->chip_type
) {
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
,
2209 buf
, 1, WDR_TIMEOUT
)) < 0 ) {
2210 err("%s Could not get modem status of device - err: %d", __FUNCTION__
,
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
,
2225 buf
, 2, WDR_TIMEOUT
)) < 0 ) {
2226 err("%s Could not get modem status of device - err: %d", __FUNCTION__
,
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) |
2243 static int ftdi_tiocmset(struct usb_serial_port
*port
, struct file
* file
, unsigned int set
, unsigned int clear
)
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");
2254 if (set
& TIOCM_RTS
) {
2255 if ((ret
= set_rts(port
, HIGH
)) < 0){
2256 err("Urb to set RTS failed");
2261 if (clear
& TIOCM_DTR
){
2262 if ((ret
= set_dtr(port
, LOW
)) < 0){
2263 err("Urb to unset DTR failed");
2267 if (clear
& TIOCM_RTS
) {
2268 if ((ret
= set_rts(port
, LOW
)) < 0){
2269 err("Urb to unset RTS failed");
2277 static int ftdi_ioctl (struct usb_serial_port
*port
, struct file
* file
, unsigned int cmd
, unsigned long arg
)
2279 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
2283 dbg("%s cmd 0x%04x", __FUNCTION__
, cmd
);
2285 /* Based on code from acm.c and others */
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
))
2292 if (mask
& TIOCM_DTR
){
2293 if ((ret
= set_dtr(port
, HIGH
)) < 0) {
2294 err("Urb to set DTR failed");
2298 if (mask
& TIOCM_RTS
) {
2299 if ((ret
= set_rts(port
, HIGH
)) < 0){
2300 err("Urb to set RTS failed");
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
))
2311 if (mask
& TIOCM_DTR
){
2312 if ((ret
= set_dtr(port
, LOW
)) < 0){
2313 err("Urb to unset DTR failed");
2317 if (mask
& TIOCM_RTS
) {
2318 if ((ret
= set_rts(port
, LOW
)) < 0){
2319 err("Urb to unset RTS failed");
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.
2335 case TIOCGSERIAL
: /* gets serial port data */
2336 return get_serial_info(port
, (struct serial_struct __user
*) arg
);
2338 case TIOCSSERIAL
: /* sets serial port data */
2339 return set_serial_info(port
, (struct serial_struct __user
*) arg
);
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.
2347 * This code is borrowed from linux/drivers/char/serial.c
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
;
2356 char diff
= priv
->diff_status
;
2359 return -EIO
; /* no change => error */
2362 /* Consume all events */
2363 priv
->diff_status
= 0;
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
)) ) {
2373 * Otherwise caller can't care less about what happened,
2374 * and so we continue to wait for more events.
2386 /* This is not necessarily an error - turns out the higher layers will do
2387 * some ioctls itself (see comment above)
2389 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __FUNCTION__
, cmd
);
2391 return(-ENOIOCTLCMD
);
2395 static void ftdi_throttle (struct usb_serial_port
*port
)
2397 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
2398 unsigned long flags
;
2400 dbg("%s - port %d", __FUNCTION__
, port
->number
);
2402 spin_lock_irqsave(&priv
->rx_lock
, flags
);
2403 priv
->rx_flags
|= THROTTLED
;
2404 spin_unlock_irqrestore(&priv
->rx_lock
, flags
);
2408 static void ftdi_unthrottle (struct usb_serial_port
*port
)
2410 struct ftdi_private
*priv
= usb_get_serial_port_data(port
);
2411 int actually_throttled
;
2412 unsigned long flags
;
2414 dbg("%s - port %d", __FUNCTION__
, port
->number
);
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
);
2421 if (actually_throttled
)
2422 ftdi_process_read(port
);
2425 static int __init
ftdi_init (void)
2429 dbg("%s", __FUNCTION__
);
2430 retval
= usb_serial_register(&ftdi_SIO_device
);
2432 goto failed_SIO_register
;
2433 retval
= usb_serial_register(&ftdi_8U232AM_device
);
2435 goto failed_8U232AM_register
;
2436 retval
= usb_serial_register(&ftdi_FT232BM_device
);
2438 goto failed_FT232BM_register
;
2439 retval
= usb_serial_register(&ftdi_FT2232C_device
);
2441 goto failed_FT2232C_register
;
2442 retval
= usb_serial_register(&ftdi_USB_UIRT_device
);
2444 goto failed_USB_UIRT_register
;
2445 retval
= usb_serial_register(&ftdi_HE_TIRA1_device
);
2447 goto failed_HE_TIRA1_register
;
2448 retval
= usb_register(&ftdi_driver
);
2450 goto failed_usb_register
;
2452 info(DRIVER_VERSION
":" DRIVER_DESC
);
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
:
2471 static void __exit
ftdi_exit (void)
2474 dbg("%s", __FUNCTION__
);
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
);
2487 module_init(ftdi_init
);
2488 module_exit(ftdi_exit
);
2490 MODULE_AUTHOR( DRIVER_AUTHOR
);
2491 MODULE_DESCRIPTION( DRIVER_DESC
);
2492 MODULE_LICENSE("GPL");
2494 module_param(debug
, bool, S_IRUGO
| S_IWUSR
);
2495 MODULE_PARM_DESC(debug
, "Debug enabled or not");