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 * (10/Mar/2004) Jan Capek
21 * Added PID's for ICD-U20/ICD-U40 - incircuit PIC debuggers from CCS Inc.
23 * (09/Feb/2004) Ian Abbott
24 * Changed full name of USB-UIRT device to avoid "/" character.
25 * Added FTDI's alternate PID (0x6006) for FT232/245 devices.
26 * Added PID for "ELV USB Module UO100" from Stefan Frings.
28 * (21/Oct/2003) Ian Abbott
29 * Renamed some VID/PID macros for Matrix Orbital and Perle Systems
30 * devices. Removed Matrix Orbital and Perle Systems devices from the
31 * 8U232AM device table, but left them in the FT232BM table, as they are
32 * known to use only FT232BM.
34 * (17/Oct/2003) Scott Allen
35 * Added vid/pid for Perle Systems UltraPort USB serial converters
37 * (21/Sep/2003) Ian Abbott
38 * Added VID/PID for Omnidirectional Control Technology US101 USB to
39 * RS-232 adapter (also rebadged as Dick Smith Electronics XH6381).
40 * VID/PID supplied by Donald Gordon.
42 * (19/Aug/2003) Ian Abbott
43 * Omitted some paranoid checks in write bulk callback that don't matter.
45 * (05/Aug/2003) Ian Abbott
46 * Added VID/PID for ID TECH IDT1221U USB to RS-232 adapter.
47 * VID/PID provided by Steve Briggs.
49 * (23/Jul/2003) Ian Abbott
50 * Added PIDs for CrystalFontz 547, 633, 631, 635, 640 and 640 from
53 * (10/Jul/2003) David Glance
54 * Added PID for DSS-20 SyncStation cradle for Sony-Ericsson P800.
56 * (23/Jun/2003) Ian Abbott
57 * Reduced flip buffer pushes and corrected a data length test in
58 * ftdi_read_bulk_callback.
59 * Defererence pointers after any paranoid checks, not before.
61 * (21/Jun/2003) Erik Nygren
62 * Added support for Home Electronics Tira-1 IR tranceiver using FT232BM chip.
63 * See <http://www.home-electro.com/tira1.htm>. Only operates properly
64 * at 100000 and RTS-CTS, so set custom divisor mode on startup.
65 * Also force the Tira-1 and USB-UIRT to only use their custom baud rates.
67 * (18/Jun/2003) Ian Abbott
68 * Added Device ID of the USB relais from Rudolf Gugler (backported from
69 * Philipp Gühring's patch for 2.5.x kernel).
70 * Moved read transfer buffer reallocation into startup function.
71 * Free existing write urb and transfer buffer in startup function.
72 * Only use urbs in write urb pool that were successfully allocated.
73 * Moved some constant macros out of functions.
74 * Minor whitespace and comment changes.
76 * (12/Jun/2003) David Norwood
77 * Added support for USB-UIRT IR tranceiver using 8U232AM chip.
78 * See <http://home.earthlink.net/~jrhees/USBUIRT/index.htm>. Only
79 * operates properly at 312500, so set custom divisor mode on startup.
81 * (12/Jun/2003) Ian Abbott
82 * Added Sealevel SeaLINK+ 210x, 220x, 240x, 280x vid/pids from Tuan Hoang
83 * - I've eliminated some that don't seem to exist!
84 * Added Home Electronics Tira-1 IR transceiver pid from Chris Horn
85 * Some whitespace/coding-style cleanups
87 * (11/Jun/2003) Ian Abbott
88 * Fixed unsafe spinlock usage in ftdi_write
90 * (24/Feb/2003) Richard Shooter
91 * Increase read buffer size to improve read speeds at higher baud rates
92 * (specifically tested with up to 1Mb/sec at 1.5M baud)
94 * (23/Feb/2003) John Wilkins
95 * Added Xon/xoff flow control (activating support in the ftdi device)
96 * Added vid/pid for Videonetworks/Homechoice (UK ISP)
98 * (23/Feb/2003) Bill Ryder
99 * Added matrix orb device vid/pids from Wayne Wylupski
101 * (19/Feb/2003) Ian Abbott
102 * For TIOCSSERIAL, set alt_speed to 0 when ASYNC_SPD_MASK value has
103 * changed to something other than ASYNC_SPD_HI, ASYNC_SPD_VHI,
104 * ASYNC_SPD_SHI or ASYNC_SPD_WARP. Also, unless ASYNC_SPD_CUST is in
105 * force, don't bother changing baud rate when custom_divisor has changed.
107 * (18/Feb/2003) Ian Abbott
108 * Fixed TIOCMGET handling to include state of DTR and RTS, the state
109 * of which are now saved by set_dtr() and set_rts().
110 * Fixed improper storage class for buf in set_dtr() and set_rts().
111 * Added FT232BM chip type and support for its extra baud rates (compared
113 * Took account of special case divisor values for highest baud rates of
114 * FT8U232AM and FT232BM.
115 * For TIOCSSERIAL, forced alt_speed to 0 when ASYNC_SPD_CUST kludge used,
116 * as previous alt_speed setting is now stale.
117 * Moved startup code common between the startup routines for the
118 * different chip types into a common subroutine.
120 * (17/Feb/2003) Bill Ryder
121 * Added write urb buffer pool on a per device basis
122 * Added more checking for open file on callbacks (fixed OOPS)
123 * Added CrystalFontz 632 and 634 PIDs
124 * (thanx to CrystalFontz for the sample devices - they flushed out
126 * Minor debugging message changes
127 * Added throttle, unthrottle and chars_in_buffer functions
128 * Fixed FTDI_SIO (the original device) bug
129 * Fixed some shutdown handling
134 * (07/Jun/2002) Kuba Ober
135 * Changed FTDI_SIO_BASE_BAUD_TO_DIVISOR macro into ftdi_baud_to_divisor
136 * function. It was getting too complex.
137 * Fix the divisor calculation logic which was setting divisor of 0.125
138 * instead of 0.5 for fractional parts of divisor equal to 5/8, 6/8, 7/8.
139 * Also make it bump up the divisor to next integer in case of 7/8 - it's
140 * a better approximation.
142 * (25/Jul/2002) Bill Ryder inserted Dmitri's TIOCMIWAIT patch
143 * Not tested by me but it doesn't break anything I use.
145 * (04/Jan/2002) Kuba Ober
146 * Implemented 38400 baudrate kludge, where it can be substituted with other
147 * values. That's the only way to set custom baudrates.
148 * Implemented TIOCSSERIAL, TIOCGSERIAL ioctl's so that setserial is happy.
149 * FIXME: both baudrate things should eventually go to usbserial.c as other
150 * devices may need that functionality too. Actually, it can probably be
151 * merged in serial.c somehow - too many drivers repeat this code over
153 * Fixed baudrate forgetfulness - open() used to reset baudrate to 9600 every time.
154 * Divisors for baudrates are calculated by a macro.
155 * Small code cleanups. Ugly whitespace changes for Plato's sake only ;-].
157 * (04/Nov/2001) Bill Ryder
158 * Fixed bug in read_bulk_callback where incorrect urb buffer was used.
159 * Cleaned up write offset calculation
160 * Added write_room since default values can be incorrect for sio
161 * Changed write_bulk_callback to use same queue_task as other drivers
162 * (the previous version caused panics)
163 * Removed port iteration code since the device only has one I/O port and it
167 * Switched from using spinlock to a semaphore, which fixes lots of problems.
169 * (23/May/2001) Bill Ryder
170 * Added runtime debug patch (thanx Tyson D Sawyer).
171 * Cleaned up comments for 8U232
172 * Added parity, framing and overrun error handling
173 * Added receive break handling.
176 * Identify version on module load.
178 * (18/March/2001) Bill Ryder
180 * Added send break handling. (requires kernel patch too)
181 * Fixed 8U232AM hardware RTS/CTS etc status reporting.
182 * Added flipbuf fix copied from generic device
184 * (12/3/2000) Bill Ryder
185 * Added support for 8U232AM device.
186 * Moved PID and VIDs into header file only.
187 * Turned on low-latency for the tty (device will do high baudrates)
188 * Added shutdown routine to close files when device removed.
189 * More debug and error message cleanups.
191 * (11/13/2000) Bill Ryder
192 * Added spinlock protected open code and close code.
193 * Multiple opens work (sort of - see webpage mentioned above).
194 * Cleaned up comments. Removed multiple PID/VID definitions.
195 * Factorised cts/dtr code
196 * Made use of __FUNCTION__ in dbg's
198 * (11/01/2000) Adam J. Richter
199 * usb_device_id table support
202 * Fixed bug with urb->dev not being set properly, now that the usb
206 * Removed DEBUG #ifdefs with call to usb_serial_debug_data
209 * Added module_init and module_exit functions to handle the fact that this
210 * driver is a loadable module now.
212 * (04/04/2000) Bill Ryder
213 * Fixed bugs in TCGET/TCSET ioctls (by removing them - they are
214 * handled elsewhere in the tty io driver chain).
216 * (03/30/2000) Bill Ryder
217 * Implemented lots of ioctls
218 * Fixed a race condition in write
219 * Changed some dbg's to errs
222 * Split driver up into device specific pieces.
226 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
227 /* Thanx to FTDI for so kindly providing details of the protocol required */
228 /* to talk to the device */
229 /* Thanx to gkh and the rest of the usb dev group for all code I have assimilated :-) */
231 #include <linux/config.h>
232 #include <linux/kernel.h>
233 #include <linux/errno.h>
234 #include <linux/init.h>
235 #include <linux/slab.h>
236 #include <linux/tty.h>
237 #include <linux/tty_driver.h>
238 #include <linux/tty_flip.h>
239 #include <linux/module.h>
240 #include <linux/spinlock.h>
241 #include <asm/uaccess.h>
242 #include <linux/usb.h>
243 #include <linux/serial.h>
244 #ifdef CONFIG_USB_SERIAL_DEBUG
245 static int debug = 1;
250 #include "usb-serial.h"
251 #include "ftdi_sio.h"
254 * Version Information
256 #define DRIVER_VERSION "v1.3.5"
257 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
258 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
260 static struct usb_device_id id_table_sio [] = {
261 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
262 { } /* Terminating entry */
266 * The 8U232AM has the same API as the sio except for:
267 * - it can support MUCH higher baudrates; up to:
268 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
270 * so .. 8U232AM's baudrate setting codes are different
271 * - it has a two byte status code.
272 * - it returns characters every 16ms (the FTDI does it every 40ms)
274 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
275 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
276 * combinations in both tables.
277 * FIXME: perhaps bcdDevice can also identify 12MHz devices, but I don't know
278 * if those ever went into mass production. [Ian Abbott]
282 static struct usb_device_id id_table_8U232AM [] = {
283 { USB_DEVICE_VER(FTDI_VID, FTDI_IRTRANS_PID, 0, 0x3ff) },
284 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_PID, 0, 0x3ff) },
285 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_ALT_PID, 0, 0x3ff) },
286 { USB_DEVICE_VER(FTDI_VID, FTDI_RELAIS_PID, 0, 0x3ff) },
287 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
288 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
289 { USB_DEVICE_VER(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID, 0, 0x3ff) },
290 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_632_PID, 0, 0x3ff) },
291 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_634_PID, 0, 0x3ff) },
292 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_547_PID, 0, 0x3ff) },
293 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_633_PID, 0, 0x3ff) },
294 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_631_PID, 0, 0x3ff) },
295 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_635_PID, 0, 0x3ff) },
296 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_640_PID, 0, 0x3ff) },
297 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_642_PID, 0, 0x3ff) },
298 { USB_DEVICE_VER(FTDI_VID, FTDI_VNHCPCUSB_D_PID, 0, 0x3ff) },
299 { USB_DEVICE_VER(FTDI_VID, FTDI_DSS20_PID, 0, 0x3ff) },
300 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2101_PID, 0, 0x3ff) },
301 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2102_PID, 0, 0x3ff) },
302 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2103_PID, 0, 0x3ff) },
303 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2104_PID, 0, 0x3ff) },
304 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_1_PID, 0, 0x3ff) },
305 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_2_PID, 0, 0x3ff) },
306 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_1_PID, 0, 0x3ff) },
307 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_2_PID, 0, 0x3ff) },
308 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_1_PID, 0, 0x3ff) },
309 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_2_PID, 0, 0x3ff) },
310 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_1_PID, 0, 0x3ff) },
311 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_2_PID, 0, 0x3ff) },
312 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_3_PID, 0, 0x3ff) },
313 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_4_PID, 0, 0x3ff) },
314 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_1_PID, 0, 0x3ff) },
315 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_2_PID, 0, 0x3ff) },
316 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_3_PID, 0, 0x3ff) },
317 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_4_PID, 0, 0x3ff) },
318 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_1_PID, 0, 0x3ff) },
319 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_2_PID, 0, 0x3ff) },
320 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_3_PID, 0, 0x3ff) },
321 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_4_PID, 0, 0x3ff) },
322 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_1_PID, 0, 0x3ff) },
323 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_2_PID, 0, 0x3ff) },
324 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_3_PID, 0, 0x3ff) },
325 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_4_PID, 0, 0x3ff) },
326 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_5_PID, 0, 0x3ff) },
327 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_6_PID, 0, 0x3ff) },
328 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_7_PID, 0, 0x3ff) },
329 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_8_PID, 0, 0x3ff) },
330 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_1_PID, 0, 0x3ff) },
331 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_2_PID, 0, 0x3ff) },
332 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_3_PID, 0, 0x3ff) },
333 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_4_PID, 0, 0x3ff) },
334 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_5_PID, 0, 0x3ff) },
335 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_6_PID, 0, 0x3ff) },
336 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_7_PID, 0, 0x3ff) },
337 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_8_PID, 0, 0x3ff) },
338 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_1_PID, 0, 0x3ff) },
339 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_2_PID, 0, 0x3ff) },
340 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_3_PID, 0, 0x3ff) },
341 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_4_PID, 0, 0x3ff) },
342 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_5_PID, 0, 0x3ff) },
343 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_6_PID, 0, 0x3ff) },
344 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_7_PID, 0, 0x3ff) },
345 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_8_PID, 0, 0x3ff) },
346 { USB_DEVICE_VER(IDTECH_VID, IDTECH_IDT1221U_PID, 0, 0x3ff) },
347 { USB_DEVICE_VER(OCT_VID, OCT_US101_PID, 0, 0x3ff) },
348 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_1, 0, 0x3ff) },
349 { USB_DEVICE_VER(FTDI_VID, PROTEGO_R2X0, 0, 0x3ff) },
350 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_3, 0, 0x3ff) },
351 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_4, 0, 0x3ff) },
352 { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UO100_PID, 0, 0x3ff) },
353 { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UM100_PID, 0, 0x3ff) },
354 { USB_DEVICE_VER(FTDI_VID, INSIDE_ACCESSO, 0, 0x3ff) },
355 { USB_DEVICE_VER(INTREPID_VID, INTREPID_VALUECAN_PID, 0, 0x3ff) },
356 { USB_DEVICE_VER(INTREPID_VID, INTREPID_NEOVI_PID, 0, 0x3ff) },
357 { USB_DEVICE_VER(FALCOM_VID, FALCOM_TWIST_PID, 0, 0x3ff) },
358 { USB_DEVICE_VER(FTDI_VID, FTDI_SUUNTO_SPORTS_PID, 0, 0x3ff) },
359 { USB_DEVICE_VER(FTDI_VID, FTDI_RM_CANVIEW_PID, 0, 0x3ff) },
360 { USB_DEVICE_VER(BANDB_VID, BANDB_USOTL4_PID, 0, 0x3ff) },
361 { USB_DEVICE_VER(BANDB_VID, BANDB_USTL4_PID, 0, 0x3ff) },
362 { USB_DEVICE_VER(BANDB_VID, BANDB_USO9ML2_PID, 0, 0x3ff) },
363 { USB_DEVICE_VER(FTDI_VID, EVER_ECO_PRO_CDS, 0, 0x3ff) },
364 { } /* Terminating entry */
368 static struct usb_device_id id_table_FT232BM [] = {
369 { USB_DEVICE_VER(FTDI_VID, FTDI_IRTRANS_PID, 0x400, 0xffff) },
370 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_PID, 0x400, 0xffff) },
371 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_ALT_PID, 0x400, 0xffff) },
372 { USB_DEVICE_VER(FTDI_VID, FTDI_RELAIS_PID, 0x400, 0xffff) },
373 { USB_DEVICE_VER(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID, 0x400, 0xffff) },
374 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_632_PID, 0x400, 0xffff) },
375 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_634_PID, 0x400, 0xffff) },
376 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_547_PID, 0x400, 0xffff) },
377 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_633_PID, 0x400, 0xffff) },
378 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_631_PID, 0x400, 0xffff) },
379 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_635_PID, 0x400, 0xffff) },
380 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_640_PID, 0x400, 0xffff) },
381 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_642_PID, 0x400, 0xffff) },
382 { USB_DEVICE_VER(FTDI_VID, FTDI_VNHCPCUSB_D_PID, 0x400, 0xffff) },
383 { USB_DEVICE_VER(FTDI_VID, FTDI_DSS20_PID, 0x400, 0xffff) },
384 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_0_PID, 0x400, 0xffff) },
385 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_1_PID, 0x400, 0xffff) },
386 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_2_PID, 0x400, 0xffff) },
387 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_3_PID, 0x400, 0xffff) },
388 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_4_PID, 0x400, 0xffff) },
389 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_5_PID, 0x400, 0xffff) },
390 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_6_PID, 0x400, 0xffff) },
391 { USB_DEVICE_VER(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID, 0x400, 0xffff) },
392 { USB_DEVICE_VER(FTDI_VID, FTDI_PIEGROUP_PID, 0x400, 0xffff) },
393 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2101_PID, 0x400, 0xffff) },
394 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2102_PID, 0x400, 0xffff) },
395 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2103_PID, 0x400, 0xffff) },
396 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2104_PID, 0x400, 0xffff) },
397 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_1_PID, 0x400, 0xffff) },
398 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_2_PID, 0x400, 0xffff) },
399 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_1_PID, 0x400, 0xffff) },
400 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_2_PID, 0x400, 0xffff) },
401 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_1_PID, 0x400, 0xffff) },
402 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_2_PID, 0x400, 0xffff) },
403 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_1_PID, 0x400, 0xffff) },
404 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_2_PID, 0x400, 0xffff) },
405 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_3_PID, 0x400, 0xffff) },
406 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_4_PID, 0x400, 0xffff) },
407 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_1_PID, 0x400, 0xffff) },
408 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_2_PID, 0x400, 0xffff) },
409 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_3_PID, 0x400, 0xffff) },
410 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_4_PID, 0x400, 0xffff) },
411 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_1_PID, 0x400, 0xffff) },
412 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_2_PID, 0x400, 0xffff) },
413 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_3_PID, 0x400, 0xffff) },
414 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_4_PID, 0x400, 0xffff) },
415 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_1_PID, 0x400, 0xffff) },
416 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_2_PID, 0x400, 0xffff) },
417 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_3_PID, 0x400, 0xffff) },
418 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_4_PID, 0x400, 0xffff) },
419 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_5_PID, 0x400, 0xffff) },
420 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_6_PID, 0x400, 0xffff) },
421 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_7_PID, 0x400, 0xffff) },
422 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_8_PID, 0x400, 0xffff) },
423 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_1_PID, 0x400, 0xffff) },
424 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_2_PID, 0x400, 0xffff) },
425 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_3_PID, 0x400, 0xffff) },
426 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_4_PID, 0x400, 0xffff) },
427 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_5_PID, 0x400, 0xffff) },
428 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_6_PID, 0x400, 0xffff) },
429 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_7_PID, 0x400, 0xffff) },
430 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_8_PID, 0x400, 0xffff) },
431 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_1_PID, 0x400, 0xffff) },
432 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_2_PID, 0x400, 0xffff) },
433 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_3_PID, 0x400, 0xffff) },
434 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_4_PID, 0x400, 0xffff) },
435 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_5_PID, 0x400, 0xffff) },
436 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_6_PID, 0x400, 0xffff) },
437 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_7_PID, 0x400, 0xffff) },
438 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_8_PID, 0x400, 0xffff) },
439 { USB_DEVICE_VER(IDTECH_VID, IDTECH_IDT1221U_PID, 0x400, 0xffff) },
440 { USB_DEVICE_VER(OCT_VID, OCT_US101_PID, 0x400, 0xffff) },
441 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_1, 0x400, 0xffff) },
442 { USB_DEVICE_VER(FTDI_VID, PROTEGO_R2X0, 0x400, 0xffff) },
443 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_3, 0x400, 0xffff) },
444 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_4, 0x400, 0xffff) },
445 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E808_PID, 0x400, 0xffff) },
446 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E809_PID, 0x400, 0xffff) },
447 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80A_PID, 0x400, 0xffff) },
448 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80B_PID, 0x400, 0xffff) },
449 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80C_PID, 0x400, 0xffff) },
450 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80D_PID, 0x400, 0xffff) },
451 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80E_PID, 0x400, 0xffff) },
452 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80F_PID, 0x400, 0xffff) },
453 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E888_PID, 0x400, 0xffff) },
454 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E889_PID, 0x400, 0xffff) },
455 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88A_PID, 0x400, 0xffff) },
456 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88B_PID, 0x400, 0xffff) },
457 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88C_PID, 0x400, 0xffff) },
458 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88D_PID, 0x400, 0xffff) },
459 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88E_PID, 0x400, 0xffff) },
460 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88F_PID, 0x400, 0xffff) },
461 { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UO100_PID, 0x400, 0xffff) },
462 { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UM100_PID, 0x400, 0xffff) },
463 { USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) },
464 { USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) },
465 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) },
466 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_1_PID, 0x400, 0xffff) },
467 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_2_PID, 0x400, 0xffff) },
468 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
469 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
470 { USB_DEVICE_VER(FTDI_VID, INSIDE_ACCESSO, 0x400, 0xffff) },
471 { USB_DEVICE_VER(INTREPID_VID, INTREPID_VALUECAN_PID, 0x400, 0xffff) },
472 { USB_DEVICE_VER(INTREPID_VID, INTREPID_NEOVI_PID, 0x400, 0xffff) },
473 { USB_DEVICE_VER(FALCOM_VID, FALCOM_TWIST_PID, 0x400, 0xffff) },
474 { USB_DEVICE_VER(FTDI_VID, FTDI_SUUNTO_SPORTS_PID, 0x400, 0xffff) },
475 { USB_DEVICE_VER(FTDI_VID, FTDI_RM_CANVIEW_PID, 0x400, 0xffff) },
476 { USB_DEVICE_VER(BANDB_VID, BANDB_USOTL4_PID, 0x400, 0xffff) },
477 { USB_DEVICE_VER(BANDB_VID, BANDB_USTL4_PID, 0x400, 0xffff) },
478 { USB_DEVICE_VER(BANDB_VID, BANDB_USO9ML2_PID, 0x400, 0xffff) },
479 { USB_DEVICE_VER(FTDI_VID, EVER_ECO_PRO_CDS, 0x400, 0xffff) },
480 { } /* Terminating entry */
484 static struct usb_device_id id_table_USB_UIRT [] = {
485 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID) },
486 { } /* Terminating entry */
490 static struct usb_device_id id_table_HE_TIRA1 [] = {
491 { USB_DEVICE_VER(FTDI_VID, FTDI_HE_TIRA1_PID, 0x400, 0xffff) },
492 { } /* Terminating entry */
496 static struct usb_device_id id_table_userdev [] = {
497 { USB_DEVICE(-1, -1) },
498 { } /* Terminating entry */
502 static __devinitdata struct usb_device_id id_table_combined [] = {
503 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
504 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
505 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
506 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
507 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
508 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
509 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
510 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
511 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
512 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
513 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
514 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
515 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
516 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
517 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
518 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
519 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
520 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
521 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_0_PID, 0x400, 0xffff) },
522 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_1_PID, 0x400, 0xffff) },
523 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_2_PID, 0x400, 0xffff) },
524 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_3_PID, 0x400, 0xffff) },
525 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_4_PID, 0x400, 0xffff) },
526 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_5_PID, 0x400, 0xffff) },
527 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_6_PID, 0x400, 0xffff) },
528 { USB_DEVICE_VER(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID, 0x400, 0xffff) },
529 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
530 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
531 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
532 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
533 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
534 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
535 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
536 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
537 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
538 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
539 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
540 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
541 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
542 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
543 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
544 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
545 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
546 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
547 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
548 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
549 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
550 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
551 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
552 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
553 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
554 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
555 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
556 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
557 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
558 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
559 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
560 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
561 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
562 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
563 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
564 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
565 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
566 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
567 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
568 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
569 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
570 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
571 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
572 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
573 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
574 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
575 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
576 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
577 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
578 { USB_DEVICE_VER(FTDI_VID, FTDI_HE_TIRA1_PID, 0x400, 0xffff) },
579 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID) },
580 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
581 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
582 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
583 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
584 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E808_PID, 0x400, 0xffff) },
585 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E809_PID, 0x400, 0xffff) },
586 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80A_PID, 0x400, 0xffff) },
587 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80B_PID, 0x400, 0xffff) },
588 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80C_PID, 0x400, 0xffff) },
589 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80D_PID, 0x400, 0xffff) },
590 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80E_PID, 0x400, 0xffff) },
591 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80F_PID, 0x400, 0xffff) },
592 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E888_PID, 0x400, 0xffff) },
593 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E889_PID, 0x400, 0xffff) },
594 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88A_PID, 0x400, 0xffff) },
595 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88B_PID, 0x400, 0xffff) },
596 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88C_PID, 0x400, 0xffff) },
597 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88D_PID, 0x400, 0xffff) },
598 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88E_PID, 0x400, 0xffff) },
599 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88F_PID, 0x400, 0xffff) },
600 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
601 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
602 { USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) },
603 { USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) },
604 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) },
605 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_1_PID, 0x400, 0xffff) },
606 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_2_PID, 0x400, 0xffff) },
607 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
608 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
609 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
610 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
611 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
612 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
613 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
614 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
615 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
616 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
617 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
618 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
619 { } /* Terminating entry */
622 MODULE_DEVICE_TABLE (usb, id_table_combined);
625 /* constants which set the number of write urb buffers */
627 /* Don't be tempted to increase this buffer to > 64 ! I tried it and it doesn't work */
628 #define URB_TRANSFER_BUFFER_SIZE 64 /* the device's max packet size */
630 /* Constants for read urb */
634 static int vendor =-1, product = -1, baud_base = 48000000/2;
635 /* User specified VID and Product ID and baud base. */
638 struct ftdi_private {
639 ftdi_chip_type_t chip_type;
640 /* type of the device, either SIO or FT8U232AM */
641 int baud_base; /* baud base clock for divisor setting */
642 int custom_divisor; /* custom_divisor kludge, this is for baud_base (different from what goes to the chip!) */
643 __u16 last_set_data_urb_value ;
644 /* the last data state set - needed for doing a break */
645 int write_offset; /* This is the offset in the usb data block to write the serial data -
646 * it is different between devices
648 int flags; /* some ASYNC_xxxx flags are supported */
649 unsigned long last_dtr_rts; /* saved modem control outputs */
650 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
651 char prev_status, diff_status; /* Used for TIOCMIWAIT */
653 struct urb *write_urb_pool[NUM_URBS];
654 spinlock_t write_urb_pool_lock;
656 int force_baud; /* if non-zero, force the baud rate to this value */
657 int force_rtscts; /* if non-zero, force RTS-CTS to always be enabled */
660 /* Used for TIOCMIWAIT */
661 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
662 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
665 #define FTDI_IMPL_ASYNC_FLAGS = ( ASYNC_SPD_HI | ASYNC_SPD_VHI \
666 ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP )
668 /* function prototypes for a FTDI serial converter */
669 static int ftdi_SIO_startup (struct usb_serial *serial);
670 static int ftdi_8U232AM_startup (struct usb_serial *serial);
671 static int ftdi_FT232BM_startup (struct usb_serial *serial);
672 static int ftdi_USB_UIRT_startup (struct usb_serial *serial);
673 static int ftdi_HE_TIRA1_startup (struct usb_serial *serial);
674 static int ftdi_userdev_startup (struct usb_serial *serial);
675 static void ftdi_shutdown (struct usb_serial *serial);
676 static int ftdi_open (struct usb_serial_port *port, struct file *filp);
677 static void ftdi_close (struct usb_serial_port *port, struct file *filp);
678 static int ftdi_write (struct usb_serial_port *port, int from_user, const unsigned char *buf, int count);
679 static int ftdi_write_room (struct usb_serial_port *port);
680 static int ftdi_chars_in_buffer (struct usb_serial_port *port);
681 static void ftdi_write_bulk_callback (struct urb *urb);
682 static void ftdi_read_bulk_callback (struct urb *urb);
683 static void ftdi_set_termios (struct usb_serial_port *port, struct termios * old);
684 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
685 static void ftdi_break_ctl (struct usb_serial_port *port, int break_state );
686 static void ftdi_throttle (struct usb_serial_port *port);
687 static void ftdi_unthrottle (struct usb_serial_port *port);
689 static unsigned short int ftdi_232am_baud_base_to_divisor (int baud, int base);
690 static unsigned short int ftdi_232am_baud_to_divisor (int baud);
691 static __u32 ftdi_232bm_baud_base_to_divisor (int baud, int base);
692 static __u32 ftdi_232bm_baud_to_divisor (int baud);
694 static struct usb_serial_device_type ftdi_SIO_device = {
695 .owner = THIS_MODULE,
697 .id_table = id_table_sio,
698 .num_interrupt_in = 0,
704 .throttle = ftdi_throttle,
705 .unthrottle = ftdi_unthrottle,
707 .write_room = ftdi_write_room,
708 .chars_in_buffer = ftdi_chars_in_buffer,
709 .read_bulk_callback = ftdi_read_bulk_callback,
710 .write_bulk_callback = ftdi_write_bulk_callback,
712 .set_termios = ftdi_set_termios,
713 .break_ctl = ftdi_break_ctl,
714 .startup = ftdi_SIO_startup,
715 .shutdown = ftdi_shutdown,
718 static struct usb_serial_device_type ftdi_8U232AM_device = {
719 .owner = THIS_MODULE,
720 .name = "FTDI 8U232AM Compatible",
721 .id_table = id_table_8U232AM,
722 .num_interrupt_in = 0,
728 .throttle = ftdi_throttle,
729 .unthrottle = ftdi_unthrottle,
731 .write_room = ftdi_write_room,
732 .chars_in_buffer = ftdi_chars_in_buffer,
733 .read_bulk_callback = ftdi_read_bulk_callback,
734 .write_bulk_callback = ftdi_write_bulk_callback,
736 .set_termios = ftdi_set_termios,
737 .break_ctl = ftdi_break_ctl,
738 .startup = ftdi_8U232AM_startup,
739 .shutdown = ftdi_shutdown,
742 static struct usb_serial_device_type ftdi_FT232BM_device = {
743 .owner = THIS_MODULE,
744 .name = "FTDI FT232BM Compatible",
745 .id_table = id_table_FT232BM,
746 .num_interrupt_in = 0,
752 .throttle = ftdi_throttle,
753 .unthrottle = ftdi_unthrottle,
755 .write_room = ftdi_write_room,
756 .chars_in_buffer = ftdi_chars_in_buffer,
757 .read_bulk_callback = ftdi_read_bulk_callback,
758 .write_bulk_callback = ftdi_write_bulk_callback,
760 .set_termios = ftdi_set_termios,
761 .break_ctl = ftdi_break_ctl,
762 .startup = ftdi_FT232BM_startup,
763 .shutdown = ftdi_shutdown,
766 static struct usb_serial_device_type ftdi_USB_UIRT_device = {
767 .owner = THIS_MODULE,
768 .name = "USB-UIRT Infrared Tranceiver",
769 .id_table = id_table_USB_UIRT,
770 .num_interrupt_in = 0,
776 .throttle = ftdi_throttle,
777 .unthrottle = ftdi_unthrottle,
779 .write_room = ftdi_write_room,
780 .chars_in_buffer = ftdi_chars_in_buffer,
781 .read_bulk_callback = ftdi_read_bulk_callback,
782 .write_bulk_callback = ftdi_write_bulk_callback,
784 .set_termios = ftdi_set_termios,
785 .break_ctl = ftdi_break_ctl,
786 .startup = ftdi_USB_UIRT_startup,
787 .shutdown = ftdi_shutdown,
790 /* The TIRA1 is based on a FT232BM which requires a fixed baud rate of 100000
791 * and which requires RTS-CTS to be enabled. */
792 static struct usb_serial_device_type ftdi_HE_TIRA1_device = {
793 .owner = THIS_MODULE,
794 .name = "Home-Electronics TIRA-1 IR Transceiver",
795 .id_table = id_table_HE_TIRA1,
796 .num_interrupt_in = 0,
802 .throttle = ftdi_throttle,
803 .unthrottle = ftdi_unthrottle,
805 .write_room = ftdi_write_room,
806 .chars_in_buffer = ftdi_chars_in_buffer,
807 .read_bulk_callback = ftdi_read_bulk_callback,
808 .write_bulk_callback = ftdi_write_bulk_callback,
810 .set_termios = ftdi_set_termios,
811 .break_ctl = ftdi_break_ctl,
812 .startup = ftdi_HE_TIRA1_startup,
813 .shutdown = ftdi_shutdown,
817 static struct usb_serial_device_type ftdi_userdev_device = {
818 .owner = THIS_MODULE,
819 .name = "FTDI SIO compatible",
820 .id_table = id_table_userdev,
821 .num_interrupt_in = 0,
828 .write_room = ftdi_write_room,
829 .read_bulk_callback = ftdi_read_bulk_callback,
830 .write_bulk_callback = ftdi_write_bulk_callback,
832 .set_termios = ftdi_set_termios,
833 .break_ctl = ftdi_break_ctl,
834 .startup = ftdi_userdev_startup,
835 .shutdown = ftdi_shutdown,
838 #define WDR_TIMEOUT (HZ * 5 ) /* default urb timeout */
840 /* High and low are for DTR, RTS etc etc */
845 * ***************************************************************************
847 * ***************************************************************************
850 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
852 unsigned short int divisor;
853 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
854 if ((divisor3 & 0x7) == 7) divisor3 ++; // round x.7/8 up to x+1
855 divisor = divisor3 >> 3;
857 if (divisor3 == 1) divisor |= 0xc000; else // 0.125
858 if (divisor3 >= 4) divisor |= 0x4000; else // 0.5
859 if (divisor3 != 0) divisor |= 0x8000; // 0.25
860 if (divisor == 1) divisor = 0; /* special case for maximum baud rate */
864 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
866 return(ftdi_232am_baud_base_to_divisor(baud, 48000000));
869 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
871 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
873 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
874 divisor = divisor3 >> 3;
875 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
876 /* Deal with special cases for highest baud rates. */
877 if (divisor == 1) divisor = 0; else // 1.0
878 if (divisor == 0x4001) divisor = 1; // 1.5
882 static __u32 ftdi_232bm_baud_to_divisor(int baud)
884 return(ftdi_232bm_baud_base_to_divisor(baud, 48000000));
887 static int set_rts(struct usb_serial_port *port, int high_or_low)
889 struct ftdi_private * priv = (struct ftdi_private *)port->private;
891 unsigned ftdi_high_or_low;
893 ftdi_high_or_low = FTDI_SIO_SET_RTS_HIGH;
894 priv->last_dtr_rts |= TIOCM_RTS;
896 ftdi_high_or_low = FTDI_SIO_SET_RTS_LOW;
897 priv->last_dtr_rts &= ~TIOCM_RTS;
899 return(usb_control_msg(port->serial->dev,
900 usb_sndctrlpipe(port->serial->dev, 0),
901 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
902 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
904 buf, 0, WDR_TIMEOUT));
908 static int set_dtr(struct usb_serial_port *port, int high_or_low)
910 struct ftdi_private * priv = (struct ftdi_private *)port->private;
912 unsigned ftdi_high_or_low;
914 ftdi_high_or_low = FTDI_SIO_SET_DTR_HIGH;
915 priv->last_dtr_rts |= TIOCM_DTR;
917 ftdi_high_or_low = FTDI_SIO_SET_DTR_LOW;
918 priv->last_dtr_rts &= ~TIOCM_DTR;
920 return(usb_control_msg(port->serial->dev,
921 usb_sndctrlpipe(port->serial->dev, 0),
922 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
923 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
925 buf, 0, WDR_TIMEOUT));
929 static __u32 get_ftdi_divisor(struct usb_serial_port * port);
932 static int change_speed(struct usb_serial_port *port)
937 __u32 urb_index_value;
939 urb_index_value = get_ftdi_divisor(port);
940 urb_value = (__u16)urb_index_value;
941 urb_index = (__u16)(urb_index_value >> 16);
943 return (usb_control_msg(port->serial->dev,
944 usb_sndctrlpipe(port->serial->dev, 0),
945 FTDI_SIO_SET_BAUDRATE_REQUEST,
946 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
947 urb_value, urb_index,
952 static __u32 get_ftdi_divisor(struct usb_serial_port * port)
953 { /* get_ftdi_divisor */
955 struct ftdi_private * priv = (struct ftdi_private *)port->private;
958 char *chip_name = "";
962 * The logic involved in setting the baudrate can be cleanly split in 3 steps.
963 * Obtaining the actual baud rate is a little tricky since unix traditionally
964 * somehow ignored the possibility to set non-standard baud rates.
965 * 1. Standard baud rates are set in tty->termios->c_cflag
966 * 2. If these are not enough, you can set any speed using alt_speed as follows:
967 * - set tty->termios->c_cflag speed to B38400
968 * - set your real speed in tty->alt_speed; it gets ignored when
970 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
971 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], this just
972 * sets alt_speed to (HI: 57600, VHI: 115200, SHI: 230400, WARP: 460800)
973 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
974 * 3. You can also set baud rate by setting custom divisor as follows
975 * - set tty->termios->c_cflag speed to B38400
976 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
977 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
978 * o custom_divisor set to baud_base / your_new_baudrate
979 * ** Step 3 is done courtesy of code borrowed from serial.c - I should really
980 * spend some time and separate+move this common code to serial.c, it is
981 * replicated in nearly every serial driver you see.
984 /* 1. Get the baud rate from the tty settings, this observes alt_speed hack */
986 baud = tty_get_baud_rate(port->tty);
987 dbg("%s - tty_get_baud_rate reports speed %d", __FUNCTION__, baud);
989 /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */
992 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
993 (priv->custom_divisor)) {
994 baud = priv->baud_base / priv->custom_divisor;
995 dbg("%s - custom divisor %d sets baud rate to %d", __FUNCTION__, priv->custom_divisor, baud);
998 /* 3. Convert baudrate to device-specific divisor */
1000 if (!baud) baud = 9600;
1001 switch(priv->chip_type) {
1002 case SIO: /* SIO chip */
1005 case 300: div_value = ftdi_sio_b300; break;
1006 case 600: div_value = ftdi_sio_b600; break;
1007 case 1200: div_value = ftdi_sio_b1200; break;
1008 case 2400: div_value = ftdi_sio_b2400; break;
1009 case 4800: div_value = ftdi_sio_b4800; break;
1010 case 9600: div_value = ftdi_sio_b9600; break;
1011 case 19200: div_value = ftdi_sio_b19200; break;
1012 case 38400: div_value = ftdi_sio_b38400; break;
1013 case 57600: div_value = ftdi_sio_b57600; break;
1014 case 115200: div_value = ftdi_sio_b115200; break;
1016 if (div_value == 0) {
1017 dbg("%s - Baudrate (%d) requested is not supported", __FUNCTION__, baud);
1018 div_value = ftdi_sio_b9600;
1022 case FT8U232AM: /* 8U232AM chip */
1023 chip_name = "FT8U232AM";
1024 if (baud <= 3000000) {
1025 div_value = ftdi_232am_baud_to_divisor(baud);
1027 dbg("%s - Baud rate too high!", __FUNCTION__);
1028 div_value = ftdi_232am_baud_to_divisor(9600);
1032 case FT232BM: /* FT232BM chip */
1033 chip_name = "FT232BM";
1034 if (baud <= 3000000) {
1035 div_value = ftdi_232bm_baud_to_divisor(baud);
1037 dbg("%s - Baud rate too high!", __FUNCTION__);
1038 div_value = ftdi_232bm_baud_to_divisor(9600);
1042 } /* priv->chip_type */
1045 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1046 __FUNCTION__, baud, (unsigned long)div_value, chip_name);
1053 static int get_serial_info(struct usb_serial_port * port, struct serial_struct * retinfo)
1055 struct ftdi_private * priv = (struct ftdi_private*) port->private;
1056 struct serial_struct tmp;
1060 memset(&tmp, 0, sizeof(tmp));
1061 tmp.flags = priv->flags;
1062 tmp.baud_base = priv->baud_base;
1063 tmp.custom_divisor = priv->custom_divisor;
1064 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1067 } /* get_serial_info */
1070 static int set_serial_info(struct usb_serial_port * port, struct serial_struct * newinfo)
1071 { /* set_serial_info */
1072 struct ftdi_private * priv = (struct ftdi_private *) port->private;
1073 struct serial_struct new_serial;
1074 struct ftdi_private old_priv;
1076 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1080 /* Do error checking and permission checking */
1082 if (!capable(CAP_SYS_ADMIN)) {
1083 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1084 (priv->flags & ~ASYNC_USR_MASK)))
1086 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1087 (new_serial.flags & ASYNC_USR_MASK));
1088 priv->custom_divisor = new_serial.custom_divisor;
1089 goto check_and_exit;
1092 if ((new_serial.baud_base != priv->baud_base) &&
1093 (new_serial.baud_base < 9600))
1096 /* Make the changes - these are privileged changes! */
1098 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1099 (new_serial.flags & ASYNC_FLAGS));
1100 priv->custom_divisor = new_serial.custom_divisor;
1102 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1105 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1106 (priv->flags & ASYNC_SPD_MASK)) {
1107 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1108 port->tty->alt_speed = 57600;
1109 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1110 port->tty->alt_speed = 115200;
1111 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1112 port->tty->alt_speed = 230400;
1113 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1114 port->tty->alt_speed = 460800;
1116 port->tty->alt_speed = 0;
1118 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1119 (priv->flags & ASYNC_SPD_MASK)) ||
1120 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1121 (old_priv.custom_divisor != priv->custom_divisor))) {
1127 } /* set_serial_info */
1130 * ***************************************************************************
1131 * FTDI driver specific functions
1132 * ***************************************************************************
1135 /* Common startup subroutine */
1136 /* Called from ftdi_SIO_startup, etc. */
1137 static int ftdi_common_startup (struct usb_serial *serial)
1139 struct usb_serial_port *port = &serial->port[0];
1140 struct ftdi_private *priv;
1144 dbg("%s",__FUNCTION__);
1146 priv = kmalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1148 err("%s- kmalloc(%Zd) failed.", __FUNCTION__, sizeof(struct ftdi_private));
1151 memset(priv, 0, sizeof(*priv));
1153 init_waitqueue_head(&priv->delta_msr_wait);
1154 /* This will push the characters through immediately rather
1155 than queue a task to deliver them */
1156 priv->flags = ASYNC_LOW_LATENCY;
1158 /* Increase the size of read buffers */
1159 if (port->bulk_in_buffer) {
1160 kfree (port->bulk_in_buffer);
1162 port->bulk_in_buffer = kmalloc (BUFSZ, GFP_KERNEL);
1163 if (!port->bulk_in_buffer) {
1167 if (port->read_urb) {
1168 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1169 port->read_urb->transfer_buffer_length = BUFSZ;
1172 /* Free port's existing write urb and transfer buffer. */
1173 if (port->write_urb) {
1174 usb_free_urb (port->write_urb);
1175 port->write_urb = NULL;
1177 if (port->bulk_out_buffer) {
1178 kfree (port->bulk_out_buffer);
1179 port->bulk_out_buffer = NULL;
1182 /* create our write urb pool and transfer buffers */
1183 spin_lock_init (&priv->write_urb_pool_lock);
1184 for (i = 0; i < NUM_URBS; ++i) {
1185 urb = usb_alloc_urb(0);
1186 priv->write_urb_pool[i] = urb;
1188 err("Unable to create new urb in urb pool");
1192 urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
1193 if (!urb->transfer_buffer) {
1194 err("%s - out of memory for urb buffers.",
1200 /* Need at least one write urb in the pool */
1206 port->private = priv;
1212 /* Startup for the SIO chip */
1213 /* Called from usbserial:serial_probe */
1214 static int ftdi_SIO_startup (struct usb_serial *serial)
1216 struct ftdi_private *priv;
1219 dbg("%s",__FUNCTION__);
1221 err = ftdi_common_startup(serial);
1226 priv = serial->port->private;
1227 priv->chip_type = SIO;
1228 priv->baud_base = 12000000 / 16;
1229 priv->write_offset = 1;
1234 /* Startup for the 8U232AM chip */
1235 /* Called from usbserial:serial_probe */
1236 static int ftdi_8U232AM_startup (struct usb_serial *serial)
1237 { /* ftdi_8U232AM_startup */
1238 struct ftdi_private *priv;
1241 dbg("%s",__FUNCTION__);
1242 err = ftdi_common_startup(serial);
1247 priv = serial->port->private;
1248 priv->chip_type = FT8U232AM;
1249 priv->baud_base = 48000000 / 2; /* Would be / 16, but FTDI supports 0.125, 0.25 and 0.5 divisor fractions! */
1252 } /* ftdi_8U232AM_startup */
1254 /* Startup for the FT232BM chip */
1255 /* Called from usbserial:serial_probe */
1256 static int ftdi_FT232BM_startup (struct usb_serial *serial)
1257 { /* ftdi_FT232BM_startup */
1258 struct ftdi_private *priv;
1261 dbg("%s",__FUNCTION__);
1262 err = ftdi_common_startup(serial);
1267 priv = serial->port->private;
1268 priv->chip_type = FT232BM;
1269 priv->baud_base = 48000000 / 2; /* Would be / 16, but FT232BM supports multiple of 0.125 divisor fractions! */
1272 } /* ftdi_FT232BM_startup */
1274 /* Startup for the USB-UIRT device, which requires hardwired baudrate (38400 gets mapped to 312500) */
1275 /* Called from usbserial:serial_probe */
1276 static int ftdi_USB_UIRT_startup (struct usb_serial *serial)
1277 { /* ftdi_USB_UIRT_startup */
1278 struct ftdi_private *priv;
1281 dbg("%s",__FUNCTION__);
1282 err = ftdi_8U232AM_startup(serial);
1287 priv = serial->port->private;
1288 priv->flags |= ASYNC_SPD_CUST;
1289 priv->custom_divisor = 77;
1290 priv->force_baud = B38400;
1293 } /* ftdi_USB_UIRT_startup */
1295 /* Startup for the HE-TIRA1 device, which requires hardwired
1296 * baudrate (38400 gets mapped to 100000) */
1297 static int ftdi_HE_TIRA1_startup (struct usb_serial *serial)
1298 { /* ftdi_HE_TIRA1_startup */
1299 struct ftdi_private *priv;
1302 dbg("%s",__FUNCTION__);
1303 err = ftdi_FT232BM_startup(serial);
1308 priv = serial->port->private;
1309 priv->flags |= ASYNC_SPD_CUST;
1310 priv->custom_divisor = 240;
1311 priv->force_baud = B38400;
1312 priv->force_rtscts = 1;
1315 } /* ftdi_HE_TIRA1_startup */
1318 /* Startup for user specified 8U232AM (or 232BM) device */
1319 static int ftdi_userdev_startup (struct usb_serial *serial)
1321 struct ftdi_private *priv;
1325 dbg("%s",__FUNCTION__);
1326 /* XXX Assume it's a FT8U232AM. An FT232BM device can be used, but
1327 * it will behave like a FT8U232AM. -- IJA */
1328 err = ftdi_8U232AM_startup(serial);
1333 priv = serial->port->private;
1334 priv->baud_base = baud_base;
1340 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1341 * it is called when the usb device is disconnected
1343 * usbserial:usb_serial_disconnect
1344 * calls __serial_close for each open of the port
1345 * shutdown is called then (ie ftdi_shutdown)
1348 static void ftdi_shutdown (struct usb_serial *serial)
1349 { /* ftdi_shutdown */
1351 struct usb_serial_port *port = &serial->port[0];
1352 struct ftdi_private *priv = serial->port->private;
1354 unsigned long flags;
1356 dbg("%s", __FUNCTION__);
1358 /* all open ports are closed at this point
1359 * (by usbserial.c:__serial_close, which calls ftdi_close)
1363 /* Only execute this if this is the final open port for this device */
1364 if (port->open_count == 0){
1365 spin_lock_irqsave (&priv->write_urb_pool_lock, flags);
1367 for (i = 0; i < NUM_URBS && priv->write_urb_pool[i]; ++i) {
1368 /* FIXME - uncomment the following usb_unlink_urb call when
1369 * the host controllers get fixed to set urb->dev = NULL after
1370 * the urb is finished. Otherwise this call oopses. */
1371 /* usb_unlink_urb(priv->write_urb_pool[i]); */
1372 if (priv->write_urb_pool[i]->transfer_buffer) {
1373 kfree(priv->write_urb_pool[i]->transfer_buffer);
1374 priv->write_urb_pool[i]->transfer_buffer = NULL;
1376 usb_free_urb (priv->write_urb_pool[i]);
1377 priv->write_urb_pool[i] = NULL;
1380 spin_unlock_irqrestore (&priv->write_urb_pool_lock, flags);
1381 /* usb_disconnect shuts down the port->read_urb so don't do it here */
1382 /* as was done previously */
1384 if (serial->port->private){
1385 kfree(serial->port->private);
1386 serial->port->private = NULL;
1388 } /* ftdi_shutdown */
1391 static int ftdi_open (struct usb_serial_port *port, struct file *filp)
1393 struct termios tmp_termios;
1394 struct usb_serial *serial = port->serial;
1395 struct ftdi_private *priv = port->private;
1398 char buf[1]; /* Needed for the usb_control_msg I think */
1400 dbg("%s", __FUNCTION__);
1403 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1405 /* No error checking for this (will get errors later anyway) */
1406 /* See ftdi_sio.h for description of what is reset */
1407 usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
1408 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1410 0, buf, 0, WDR_TIMEOUT);
1412 /* Termios defaults are set by usb_serial_init. We don't change
1413 port->tty->termios - this would loose speed settings, etc.
1414 This is same behaviour as serial.c/rs_open() - Kuba */
1416 /* ftdi_set_termios will send usb control messages */
1417 ftdi_set_termios(port, &tmp_termios);
1419 /* FIXME: Flow control might be enabled, so it should be checked -
1420 we have no control of defaults! */
1421 /* Turn on RTS and DTR since we are not flow controlling by default */
1422 if (set_dtr(port, HIGH) < 0) {
1423 err("%s Error from DTR HIGH urb", __FUNCTION__);
1425 if (set_rts(port, HIGH) < 0){
1426 err("%s Error from RTS HIGH urb", __FUNCTION__);
1429 /* Start reading from the device */
1430 FILL_BULK_URB(port->read_urb, serial->dev,
1431 usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress),
1432 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1433 ftdi_read_bulk_callback, port);
1434 result = usb_submit_urb(port->read_urb);
1436 err("%s - failed submitting read urb, error %d", __FUNCTION__, result);
1445 * usbserial:__serial_close only calls ftdi_close if the point is open
1447 * This only gets called when it is the last close
1452 static void ftdi_close (struct usb_serial_port *port, struct file *filp)
1454 struct usb_serial *serial;
1455 unsigned int c_cflag = port->tty->termios->c_cflag;
1459 dbg("%s", __FUNCTION__);
1461 serial = get_usb_serial ( port, __FUNCTION__);
1466 if (c_cflag & HUPCL){
1467 /* Disable flow control */
1468 if (usb_control_msg(serial->dev,
1469 usb_sndctrlpipe(serial->dev, 0),
1470 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1471 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1472 0, 0, buf, 0, WDR_TIMEOUT) < 0) {
1473 err("error from flowcontrol urb");
1477 if (set_dtr(port, LOW) < 0){
1478 err("Error from DTR LOW urb");
1481 if (set_rts(port, LOW) < 0) {
1482 err("Error from RTS LOW urb");
1484 } /* Note change no line is hupcl is off */
1486 /* shutdown our bulk read */
1487 if (port->read_urb) {
1488 err = usb_unlink_urb (port->read_urb);
1489 if (err < 0 && err != -ENODEV)
1490 err("Error unlinking urb (%d)", err);
1492 /* unlink the running write urbs */
1494 } /* if (serial->dev) */
1501 /* The SIO requires the first byte to have:
1504 * B2..7 length of message excluding byte 0
1506 * The new devices do not require this byte
1508 static int ftdi_write (struct usb_serial_port *port, int from_user,
1509 const unsigned char *buf, int count)
1511 struct usb_serial *serial = get_usb_serial ( port, __FUNCTION__);
1512 struct ftdi_private *priv = (struct ftdi_private *)port->private;
1513 unsigned char *first_byte;
1514 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1516 int user_bytes_sent = 0 ; /* amount of user data sent */
1518 /* Variables for urb pool management */
1519 unsigned char *current_position = (unsigned char *)buf;
1521 struct urb *urb; /* pointer to urb from urb pool */
1522 unsigned long flags;
1523 /* end of urb pool management */
1526 dbg("%s port %d, %d bytes", __FUNCTION__, port->number, count);
1529 dbg("write request of 0 bytes");
1533 data_offset = priv->write_offset;
1534 dbg("data_offset set to %d",data_offset);
1537 /* urb_byte_count = user_byte_count + data_offset */
1538 int urb_byte_count; /* Number of bytes of URB data */
1539 int user_byte_count; /* Number of bytes of user data */
1541 /* Find a free urb in the list */
1544 spin_lock_irqsave (&(priv->write_urb_pool_lock), flags) ;
1546 for (i = 0 ; i < NUM_URBS && priv->write_urb_pool[i]; i++) {
1547 if (priv->write_urb_pool[i] -> status != -EINPROGRESS) {
1548 urb = priv->write_urb_pool[i];
1549 /* Must make sure another write doesn't grab this */
1550 urb->status = -EINPROGRESS;
1555 spin_unlock_irqrestore (&priv->write_urb_pool_lock, flags);
1558 dbg("%s - no more free urbs", __FUNCTION__);
1562 /* Allocate memory for the urb if necessary */
1563 if (urb->transfer_buffer == NULL) {
1564 urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
1565 if (urb->transfer_buffer == NULL) {
1566 err("%s ran out of kernel memory for urb ...", __FUNCTION__);
1571 /* The original sio needs the first byte to contain the bytecount
1572 * so the urb may be one byte bigger than the user data
1574 urb_byte_count = min (count + data_offset, URB_TRANSFER_BUFFER_SIZE);
1575 user_byte_count = urb_byte_count - data_offset;
1577 /* Copy in the data to send */
1579 if (copy_from_user(urb->transfer_buffer + data_offset,
1580 current_position, user_byte_count )){
1584 memcpy(urb->transfer_buffer + data_offset,
1585 current_position, user_byte_count );
1588 first_byte = urb->transfer_buffer;
1589 if (data_offset > 0){
1590 /* Write the control byte at the front of the packet*/
1591 *first_byte = 1 | ((user_byte_count) << 2) ;
1592 dbg("%s Bytes: %d, First Byte: 0x%02x", __FUNCTION__,count, first_byte[0]);
1595 usb_serial_debug_data (__FILE__, __FUNCTION__, urb_byte_count, first_byte);
1597 /* fill the buffer and send it */
1598 FILL_BULK_URB(urb, serial->dev,
1599 usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress),
1600 urb->transfer_buffer, urb_byte_count,
1601 ftdi_write_bulk_callback, port);
1602 urb->transfer_flags |= USB_QUEUE_BULK;
1604 /* uhci stack errors if it status set to -EINPROGRESS on */
1605 /* urb submission, so clear status before submission. */
1606 spin_lock_irqsave (&(priv->write_urb_pool_lock), flags) ;
1609 result = usb_submit_urb(urb);
1611 spin_unlock_irqrestore (&priv->write_urb_pool_lock, flags);
1612 err("%s - failed submitting write urb, error %d", __FUNCTION__, result);
1613 user_bytes_sent = result;
1616 spin_unlock_irqrestore (&priv->write_urb_pool_lock, flags);
1619 current_position += user_byte_count;
1620 user_bytes_sent += user_byte_count;
1621 count -= user_byte_count;
1623 } /* while count > 0 */
1627 dbg("%s write returning: %d", __FUNCTION__, user_bytes_sent);
1628 return user_bytes_sent;
1633 /* This function may get called when the device is closed */
1635 static void ftdi_write_bulk_callback (struct urb *urb)
1637 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
1639 if (port_paranoia_check (port, __FUNCTION__))
1642 dbg("%s - port %d", __FUNCTION__, port->number);
1645 dbg("nonzero write bulk status received: %d", urb->status);
1649 if (port->open_count > 0){
1650 queue_task(&port->tqueue, &tq_immediate);
1651 mark_bh(IMMEDIATE_BH);
1653 } /* ftdi_write_bulk_callback */
1656 static int ftdi_write_room( struct usb_serial_port *port )
1658 struct ftdi_private *priv = (struct ftdi_private *)port->private;
1661 unsigned long flags;
1663 spin_lock_irqsave (&priv->write_urb_pool_lock, flags);
1664 for (i = 0; i < NUM_URBS && priv->write_urb_pool[i]; i++) {
1665 if (priv->write_urb_pool[i]->status != -EINPROGRESS)
1668 spin_unlock_irqrestore (&priv->write_urb_pool_lock, flags);
1670 /* Harmless lies for the sake of line disciplines */
1671 if ((room -= 2) < 0)
1674 room *= URB_TRANSFER_BUFFER_SIZE - priv->write_offset;
1675 dbg("%s - returns %d", __FUNCTION__, room);
1677 } /* ftdi_write_room */
1680 static int ftdi_chars_in_buffer (struct usb_serial_port *port)
1681 { /* ftdi_chars_in_buffer */
1682 unsigned long flags;
1685 struct ftdi_private *priv = (struct ftdi_private *)port->private;
1686 int data_offset = priv->write_offset;
1688 dbg("%s - port %d", __FUNCTION__, port->number);
1690 spin_lock_irqsave (&priv->write_urb_pool_lock, flags);
1692 /* tally up the number of bytes waiting */
1693 for (i = 0; i < NUM_URBS && priv->write_urb_pool[i]; i++) {
1694 if (priv->write_urb_pool[i]->status == -EINPROGRESS) {
1695 chars += URB_TRANSFER_BUFFER_SIZE - data_offset;
1699 spin_unlock_irqrestore (&priv->write_urb_pool_lock, flags);
1701 dbg("%s - returns %d", __FUNCTION__, chars);
1705 } /* ftdi_chars_in_buffer */
1709 static void ftdi_read_bulk_callback (struct urb *urb)
1710 { /* ftdi_read_bulk_callback */
1711 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
1712 struct usb_serial *serial;
1713 struct tty_struct *tty;
1714 struct ftdi_private *priv;
1716 unsigned char *data = urb->transfer_buffer;
1723 if (urb->number_of_packets > 0) {
1724 err("%s transfer_buffer_length %d actual_length %d number of packets %d",__FUNCTION__,
1725 urb->transfer_buffer_length, urb->actual_length, urb->number_of_packets );
1726 err("%s transfer_flags %x USB_QUEUE_BULK %x ", __FUNCTION__,urb->transfer_flags, USB_QUEUE_BULK );
1729 dbg("%s", __FUNCTION__);
1731 if (port_paranoia_check (port, __FUNCTION__)) {
1734 if (port->open_count <= 0)
1737 serial = get_usb_serial(port,__FUNCTION__);
1739 dbg("%s - bad serial pointer - exiting",__FUNCTION__);
1745 dbg("%s - bad tty pointer - exiting",__FUNCTION__);
1749 priv = (struct ftdi_private *) port->private;
1752 /* This will happen at close every time so it is a dbg not an err */
1753 dbg("(this is ok on close) nonzero read bulk status received: %d", urb->status);
1757 /* The first two bytes of every read packet are status */
1758 if (urb->actual_length > 2) {
1759 usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, data);
1761 dbg("Status only: %03oo %03oo",data[0],data[1]);
1765 /* TO DO -- check for hung up line and handle appropriately: */
1767 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1768 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1771 for (packet_offset=0; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1772 /* Compare new line status to the old one, signal if different */
1774 char new_status = data[packet_offset+0] & FTDI_STATUS_B0_MASK;
1775 if (new_status != priv->prev_status) {
1776 priv->diff_status |= new_status ^ priv->prev_status;
1777 wake_up_interruptible(&priv->delta_msr_wait);
1778 priv->prev_status = new_status;
1782 /* Handle errors and break */
1783 error_flag = TTY_NORMAL;
1784 /* Although the device uses a bitmask and hence can have multiple */
1785 /* errors on a packet - the order here sets the priority the */
1786 /* error is returned to the tty layer */
1788 if ( data[packet_offset+1] & FTDI_RS_OE ) {
1789 error_flag = TTY_OVERRUN;
1790 dbg("OVERRRUN error");
1792 if ( data[packet_offset+1] & FTDI_RS_BI ) {
1793 error_flag = TTY_BREAK;
1794 dbg("BREAK received");
1796 if ( data[packet_offset+1] & FTDI_RS_PE ) {
1797 error_flag = TTY_PARITY;
1798 dbg("PARITY error");
1800 if ( data[packet_offset+1] & FTDI_RS_FE ) {
1801 error_flag = TTY_FRAME;
1802 dbg("FRAMING error");
1804 if (urb->actual_length > packet_offset + 2) {
1805 for (i = 2; (i < PKTSZ) && ((i+packet_offset) < urb->actual_length); ++i) {
1806 /* have to make sure we don't overflow the buffer
1807 with tty_insert_flip_char's */
1808 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1809 tty_flip_buffer_push(tty);
1811 /* Note that the error flag is duplicated for
1812 every character received since we don't know
1813 which character it applied to */
1814 tty_insert_flip_char(tty, data[packet_offset+i], error_flag);
1819 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1820 /* if a parity error is detected you get status packets forever
1821 until a character is sent without a parity error.
1822 This doesn't work well since the application receives a never
1823 ending stream of bad data - even though new data hasn't been sent.
1824 Therefore I (bill) have taken this out.
1825 However - this might make sense for framing errors and so on
1826 so I am leaving the code in for now.
1829 if (error_flag != TTY_NORMAL){
1830 dbg("error_flag is not normal");
1831 /* In this case it is just status - if that is an error send a bad character */
1832 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1833 tty_flip_buffer_push(tty);
1835 tty_insert_flip_char(tty, 0xff, error_flag);
1840 } /* "for(packet_offset=0..." */
1844 tty_flip_buffer_push(tty);
1847 /* if the port is closed stop trying to read */
1848 if (port->open_count > 0){
1849 /* Continue trying to always read */
1850 FILL_BULK_URB(port->read_urb, serial->dev,
1851 usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress),
1852 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1853 ftdi_read_bulk_callback, port);
1855 result = usb_submit_urb(port->read_urb);
1857 err("%s - failed resubmitting read urb, error %d", __FUNCTION__, result);
1861 } /* ftdi_read_bulk_callback */
1864 static void ftdi_break_ctl( struct usb_serial_port *port, int break_state )
1866 struct usb_serial *serial = port->serial;
1867 struct ftdi_private *priv = (struct ftdi_private *)port->private;
1868 __u16 urb_value = 0;
1871 /* break_state = -1 to turn on break, and 0 to turn off break */
1872 /* see drivers/char/tty_io.c to see it used */
1873 /* last_set_data_urb_value NEVER has the break bit set in it */
1876 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
1878 urb_value = priv->last_set_data_urb_value;
1882 if (usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
1883 FTDI_SIO_SET_DATA_REQUEST,
1884 FTDI_SIO_SET_DATA_REQUEST_TYPE,
1886 buf, 0, WDR_TIMEOUT) < 0) {
1887 err("%s FAILED to enable/disable break state (state was %d)", __FUNCTION__,break_state);
1890 dbg("%s break state is %d - urb is %d", __FUNCTION__,break_state, urb_value);
1895 /* old_termios contains the original termios settings and tty->termios contains
1896 * the new setting to be used
1897 * WARNING: set_termios calls this with old_termios in kernel space
1900 static void ftdi_set_termios (struct usb_serial_port *port, struct termios *old_termios)
1901 { /* ftdi_termios */
1902 struct usb_serial *serial = port->serial;
1904 struct ftdi_private *priv = (struct ftdi_private *)port->private;
1905 __u16 urb_value; /* will hold the new flags */
1906 char buf[1]; /* Perhaps I should dynamically alloc this? */
1908 // Added for xon/xoff support
1909 unsigned int iflag = port->tty->termios->c_iflag;
1910 unsigned char vstop;
1911 unsigned char vstart;
1913 dbg("%s", __FUNCTION__);
1915 /* Force baud rate if this device requires it, unless it is set to B0. */
1916 if (priv->force_baud && ((port->tty->termios->c_cflag & CBAUD) != B0)) {
1917 dbg("%s: forcing baud rate for this device", __FUNCTION__);
1918 port->tty->termios->c_cflag &= ~CBAUD;
1919 port->tty->termios->c_cflag |= priv->force_baud;
1922 /* Force RTS-CTS if this device requires it. */
1923 if (priv->force_rtscts) {
1924 dbg("%s: forcing rtscts for this device", __FUNCTION__);
1925 port->tty->termios->c_cflag |= CRTSCTS;
1928 cflag = port->tty->termios->c_cflag;
1930 /* FIXME -For this cut I don't care if the line is really changing or
1931 not - so just do the change regardless - should be able to
1932 compare old_termios and tty->termios */
1933 /* NOTE These routines can get interrupted by
1934 ftdi_sio_read_bulk_callback - need to examine what this
1935 means - don't see any problems yet */
1937 /* Set number of data bits, parity, stop bits */
1940 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
1941 FTDI_SIO_SET_DATA_STOP_BITS_1);
1942 urb_value |= (cflag & PARENB ?
1943 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
1944 FTDI_SIO_SET_DATA_PARITY_EVEN) :
1945 FTDI_SIO_SET_DATA_PARITY_NONE);
1946 if (cflag & CSIZE) {
1947 switch (cflag & CSIZE) {
1948 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
1949 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
1950 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
1951 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
1953 err("CSIZE was set but not CS5-CS8");
1957 /* This is needed by the break command since it uses the same command - but is
1958 * or'ed with this value */
1959 priv->last_set_data_urb_value = urb_value;
1961 if (usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
1962 FTDI_SIO_SET_DATA_REQUEST,
1963 FTDI_SIO_SET_DATA_REQUEST_TYPE,
1966 err("%s FAILED to set databits/stopbits/parity", __FUNCTION__);
1969 /* Now do the baudrate */
1970 if ((cflag & CBAUD) == B0 ) {
1971 /* Disable flow control */
1972 if (usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
1973 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1974 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1976 buf, 0, WDR_TIMEOUT) < 0) {
1977 err("%s error from disable flowcontrol urb", __FUNCTION__);
1979 /* Drop RTS and DTR */
1980 if (set_dtr(port, LOW) < 0){
1981 err("%s Error from DTR LOW urb", __FUNCTION__);
1983 if (set_rts(port, LOW) < 0){
1984 err("%s Error from RTS LOW urb", __FUNCTION__);
1988 /* set the baudrate determined before */
1989 if (change_speed(port)) {
1990 err("%s urb failed to set baurdrate", __FUNCTION__);
1992 /* Ensure RTS and DTR are raised */
1993 else if (set_dtr(port, HIGH) < 0){
1994 err("%s Error from DTR HIGH urb", __FUNCTION__);
1996 else if (set_rts(port, HIGH) < 0){
1997 err("%s Error from RTS HIGH urb", __FUNCTION__);
2001 /* Set flow control */
2002 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2003 if (cflag & CRTSCTS) {
2004 dbg("%s Setting to CRTSCTS flow control", __FUNCTION__);
2005 if (usb_control_msg(serial->dev,
2006 usb_sndctrlpipe(serial->dev, 0),
2007 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2008 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2009 0 , FTDI_SIO_RTS_CTS_HS,
2010 buf, 0, WDR_TIMEOUT) < 0) {
2011 err("urb failed to set to rts/cts flow control");
2018 * Check the IXOFF status in the iflag component of the termios structure
2019 * if IXOFF is not set, the pre-xon/xoff code is executed.
2021 if (iflag & IXOFF) {
2022 dbg("%s request to enable xonxoff iflag=%04x",__FUNCTION__,iflag);
2023 // Try to enable the XON/XOFF on the ftdi_sio
2024 // Set the vstart and vstop -- could have been done up above where
2025 // a lot of other dereferencing is done but that would be very
2026 // inefficient as vstart and vstop are not always needed
2027 vstart=port->tty->termios->c_cc[VSTART];
2028 vstop=port->tty->termios->c_cc[VSTOP];
2029 urb_value=(vstop << 8) | (vstart);
2031 if (usb_control_msg(serial->dev,
2032 usb_sndctrlpipe(serial->dev, 0),
2033 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2034 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2035 urb_value , FTDI_SIO_XON_XOFF_HS,
2036 buf, 0, WDR_TIMEOUT) < 0) {
2037 err("urb failed to set to xon/xoff flow control");
2040 /* else clause to only run if cfag ! CRTSCTS and iflag ! XOFF */
2041 /* CHECKME Assuming XON/XOFF handled by tty stack - not by device */
2042 dbg("%s Turning off hardware flow control", __FUNCTION__);
2043 if (usb_control_msg(serial->dev,
2044 usb_sndctrlpipe(serial->dev, 0),
2045 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2046 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2048 buf, 0, WDR_TIMEOUT) < 0) {
2049 err("urb failed to clear flow control");
2055 } /* ftdi_termios */
2058 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
2060 struct usb_serial *serial = port->serial;
2061 struct ftdi_private *priv = (struct ftdi_private *)port->private;
2063 __u16 urb_value=0; /* Will hold the new flags */
2067 dbg("%s cmd 0x%04x", __FUNCTION__, cmd);
2069 /* Based on code from acm.c and others */
2073 dbg("%s TIOCMGET", __FUNCTION__);
2074 switch (priv->chip_type) {
2076 /* Request the status from the device */
2077 if ((ret = usb_control_msg(serial->dev,
2078 usb_rcvctrlpipe(serial->dev, 0),
2079 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2080 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2082 buf, 1, WDR_TIMEOUT)) < 0 ) {
2083 err("%s Could not get modem status of device - err: %d", __FUNCTION__,
2090 /* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same
2091 format as the data returned from the in point */
2092 if ((ret = usb_control_msg(serial->dev,
2093 usb_rcvctrlpipe(serial->dev, 0),
2094 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2095 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2097 buf, 2, WDR_TIMEOUT)) < 0 ) {
2098 err("%s Could not get modem status of device - err: %d", __FUNCTION__,
2108 return put_user((buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2109 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2110 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2111 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2113 (unsigned long *) arg);
2116 case TIOCMSET: /* Turns on and off the lines as specified by the mask */
2117 dbg("%s TIOCMSET", __FUNCTION__);
2118 if (get_user(mask, (unsigned long *) arg))
2120 urb_value = ((mask & TIOCM_DTR) ? HIGH : LOW);
2121 if ((ret = set_dtr(port, urb_value)) < 0){
2122 err("Error from DTR set urb (TIOCMSET)");
2125 urb_value = ((mask & TIOCM_RTS) ? HIGH : LOW);
2126 if ((ret = set_rts(port, urb_value)) < 0){
2127 err("Error from RTS set urb (TIOCMSET)");
2133 case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
2134 dbg("%s TIOCMBIS", __FUNCTION__);
2135 if (get_user(mask, (unsigned long *) arg))
2137 if (mask & TIOCM_DTR){
2138 if ((ret = set_dtr(port, HIGH)) < 0) {
2139 err("Urb to set DTR failed");
2143 if (mask & TIOCM_RTS) {
2144 if ((ret = set_rts(port, HIGH)) < 0){
2145 err("Urb to set RTS failed");
2152 case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
2153 dbg("%s TIOCMBIC", __FUNCTION__);
2154 if (get_user(mask, (unsigned long *) arg))
2156 if (mask & TIOCM_DTR){
2157 if ((ret = set_dtr(port, LOW)) < 0){
2158 err("Urb to unset DTR failed");
2162 if (mask & TIOCM_RTS) {
2163 if ((ret = set_rts(port, LOW)) < 0){
2164 err("Urb to unset RTS failed");
2172 * I had originally implemented TCSET{A,S}{,F,W} and
2173 * TCGET{A,S} here separately, however when testing I
2174 * found that the higher layers actually do the termios
2175 * conversions themselves and pass the call onto
2176 * ftdi_sio_set_termios.
2180 case TIOCGSERIAL: /* gets serial port data */
2181 return get_serial_info(port, (struct serial_struct *) arg);
2183 case TIOCSSERIAL: /* sets serial port data */
2184 return set_serial_info(port, (struct serial_struct *) arg);
2187 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2188 * - mask passed in arg for lines of interest
2189 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2190 * Caller should use TIOCGICOUNT to see which one it was.
2192 * This code is borrowed from linux/drivers/char/serial.c
2195 while (priv != NULL) {
2196 interruptible_sleep_on(&priv->delta_msr_wait);
2197 /* see if a signal did it */
2198 if (signal_pending(current))
2199 return -ERESTARTSYS;
2201 char diff = priv->diff_status;
2204 return -EIO; /* no change => error */
2207 /* Consume all events */
2208 priv->diff_status = 0;
2210 /* Return 0 if caller wanted to know about these bits */
2211 if ( ((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2212 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2213 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2214 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS)) ) {
2218 * Otherwise caller can't care less about what happened,
2219 * and so we continue to wait for more events.
2231 /* This is not necessarily an error - turns out the higher layers will do
2232 * some ioctls itself (see comment above)
2234 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __FUNCTION__, cmd);
2236 return(-ENOIOCTLCMD);
2240 static void ftdi_throttle (struct usb_serial_port *port)
2242 dbg("%s - port %d", __FUNCTION__, port->number);
2243 usb_unlink_urb (port->read_urb);
2247 static void ftdi_unthrottle (struct usb_serial_port *port)
2250 struct usb_serial *serial = port->serial;
2252 dbg("%s - port %d", __FUNCTION__, port->number);
2254 port->read_urb->dev = serial->dev;
2256 FILL_BULK_URB(port->read_urb, serial->dev,
2257 usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress),
2258 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
2259 ftdi_read_bulk_callback, port);
2261 result = usb_submit_urb(port->read_urb);
2263 err("%s - failed submitting read urb, error %d", __FUNCTION__, result);
2266 static int __init ftdi_init (void)
2269 dbg("%s", __FUNCTION__);
2270 usb_serial_register (&ftdi_SIO_device);
2271 usb_serial_register (&ftdi_8U232AM_device);
2272 usb_serial_register (&ftdi_FT232BM_device);
2273 usb_serial_register (&ftdi_USB_UIRT_device);
2274 usb_serial_register (&ftdi_HE_TIRA1_device);
2277 /* User specified USB vendor and device id */
2278 /* The macro initialized "matchvendor" as the matching flags */
2279 id_table_userdev[0].idVendor = vendor;
2280 id_table_userdev[0].idProduct = product;
2281 usb_serial_register (&ftdi_userdev_device);
2285 info(DRIVER_VERSION ":" DRIVER_DESC);
2290 static void __exit ftdi_exit (void)
2293 dbg("%s", __FUNCTION__);
2296 usb_serial_deregister (&ftdi_userdev_device);
2297 usb_serial_deregister (&ftdi_HE_TIRA1_device);
2298 usb_serial_deregister (&ftdi_USB_UIRT_device);
2299 usb_serial_deregister (&ftdi_FT232BM_device);
2300 usb_serial_deregister (&ftdi_8U232AM_device);
2301 usb_serial_deregister (&ftdi_SIO_device);
2306 module_init(ftdi_init);
2307 module_exit(ftdi_exit);
2309 MODULE_AUTHOR( DRIVER_AUTHOR );
2310 MODULE_DESCRIPTION( DRIVER_DESC );
2311 MODULE_LICENSE("GPL");
2313 MODULE_PARM(debug, "i");
2314 MODULE_PARM_DESC(debug, "Debug enabled or not");
2316 MODULE_PARM(vendor, "i");
2317 MODULE_PARM_DESC(vendor, "User specified USB idVendor");
2319 MODULE_PARM(product, "i");
2320 MODULE_PARM_DESC(product, "User specified USB idProduct");