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[XFRM]: skb_cow_data() does not set proper owner for new skbs.
[linux-2.6/verdex.git] / drivers / usb / serial / ftdi_sio.c
blob52394f08a9474b1b90a41814601f4379313d2ec9
1 /*
2 * USB FTDI SIO driver
3 *
4 * Copyright (C) 1999 - 2001
5 * Greg Kroah-Hartman (greg@kroah.com)
6 * Bill Ryder (bryder@sgi.com)
7 * Copyright (C) 2002
8 * Kuba Ober (kuba@mareimbrium.org)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * See Documentation/usb/usb-serial.txt for more information on using this driver
16 *
17 * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
18 * and extra documentation
19 *
20 * (21/Jul/2004) Ian Abbott
21 * Incorporated Steven Turner's code to add support for the FT2232C chip.
22 * The prelimilary port to the 2.6 kernel was by Rus V. Brushkoff. I have
23 * fixed a couple of things.
24 *
25 * (27/May/2004) Ian Abbott
26 * Improved throttling code, mostly stolen from the WhiteHEAT driver.
27 *
28 * (26/Mar/2004) Jan Capek
29 * Added PID's for ICD-U20/ICD-U40 - incircuit PIC debuggers from CCS Inc.
30 *
31 * (09/Feb/2004) Ian Abbott
32 * Changed full name of USB-UIRT device to avoid "/" character.
33 * Added FTDI's alternate PID (0x6006) for FT232/245 devices.
34 * Added PID for "ELV USB Module UO100" from Stefan Frings.
35 *
36 * (21/Oct/2003) Ian Abbott
37 * Renamed some VID/PID macros for Matrix Orbital and Perle Systems
38 * devices. Removed Matrix Orbital and Perle Systems devices from the
39 * 8U232AM device table, but left them in the FT232BM table, as they are
40 * known to use only FT232BM.
41 *
42 * (17/Oct/2003) Scott Allen
43 * Added vid/pid for Perle Systems UltraPort USB serial converters
44 *
45 * (21/Sep/2003) Ian Abbott
46 * Added VID/PID for Omnidirectional Control Technology US101 USB to
47 * RS-232 adapter (also rebadged as Dick Smith Electronics XH6381).
48 * VID/PID supplied by Donald Gordon.
49 *
50 * (19/Aug/2003) Ian Abbott
51 * Freed urb's transfer buffer in write bulk callback.
52 * Omitted some paranoid checks in write bulk callback that don't matter.
53 * Scheduled work in write bulk callback regardless of port's open count.
54 *
55 * (05/Aug/2003) Ian Abbott
56 * Added VID/PID for ID TECH IDT1221U USB to RS-232 adapter.
57 * VID/PID provided by Steve Briggs.
58 *
59 * (23/Jul/2003) Ian Abbott
60 * Added PIDs for CrystalFontz 547, 633, 631, 635, 640 and 640 from
61 * Wayne Wylupski.
62 *
63 * (10/Jul/2003) David Glance
64 * Added PID for DSS-20 SyncStation cradle for Sony-Ericsson P800.
65 *
66 * (27/Jun/2003) Ian Abbott
67 * Reworked the urb handling logic. We have no more pool, but dynamically
68 * allocate the urb and the transfer buffer on the fly. In testing this
69 * does not incure any measurable overhead. This also relies on the fact
70 * that we have proper reference counting logic for urbs. I nicked this
71 * from Greg KH's Visor driver.
72 *
73 * (23/Jun/2003) Ian Abbott
74 * Reduced flip buffer pushes and corrected a data length test in
75 * ftdi_read_bulk_callback.
76 * Defererence pointers after any paranoid checks, not before.
77 *
78 * (21/Jun/2003) Erik Nygren
79 * Added support for Home Electronics Tira-1 IR transceiver using FT232BM chip.
80 * See <http://www.home-electro.com/tira1.htm>. Only operates properly
81 * at 100000 and RTS-CTS, so set custom divisor mode on startup.
82 * Also force the Tira-1 and USB-UIRT to only use their custom baud rates.
83 *
84 * (18/Jun/2003) Ian Abbott
85 * Added Device ID of the USB relais from Rudolf Gugler (backported from
86 * Philipp Gühring's patch for 2.5.x kernel).
87 * Moved read transfer buffer reallocation into startup function.
88 * Free existing write urb and transfer buffer in startup function.
89 * Only use urbs in write urb pool that were successfully allocated.
90 * Moved some constant macros out of functions.
91 * Minor whitespace and comment changes.
92 *
93 * (12/Jun/2003) David Norwood
94 * Added support for USB-UIRT IR transceiver using 8U232AM chip.
95 * See <http://home.earthlink.net/~jrhees/USBUIRT/index.htm>. Only
96 * operates properly at 312500, so set custom divisor mode on startup.
97 *
98 * (12/Jun/2003) Ian Abbott
99 * Added Sealevel SeaLINK+ 210x, 220x, 240x, 280x vid/pids from Tuan Hoang
100 * - I've eliminated some that don't seem to exist!
101 * Added Home Electronics Tira-1 IR transceiver pid from Chris Horn
102 * Some whitespace/coding-style cleanups
103 *
104 * (11/Jun/2003) Ian Abbott
105 * Fixed unsafe spinlock usage in ftdi_write
106 *
107 * (24/Feb/2003) Richard Shooter
108 * Increase read buffer size to improve read speeds at higher baud rates
109 * (specifically tested with up to 1Mb/sec at 1.5M baud)
110 *
111 * (23/Feb/2003) John Wilkins
112 * Added Xon/xoff flow control (activating support in the ftdi device)
113 * Added vid/pid for Videonetworks/Homechoice (UK ISP)
114 *
115 * (23/Feb/2003) Bill Ryder
116 * Added matrix orb device vid/pids from Wayne Wylupski
117 *
118 * (19/Feb/2003) Ian Abbott
119 * For TIOCSSERIAL, set alt_speed to 0 when ASYNC_SPD_MASK value has
120 * changed to something other than ASYNC_SPD_HI, ASYNC_SPD_VHI,
121 * ASYNC_SPD_SHI or ASYNC_SPD_WARP. Also, unless ASYNC_SPD_CUST is in
122 * force, don't bother changing baud rate when custom_divisor has changed.
123 *
124 * (18/Feb/2003) Ian Abbott
125 * Fixed TIOCMGET handling to include state of DTR and RTS, the state
126 * of which are now saved by set_dtr() and set_rts().
127 * Fixed improper storage class for buf in set_dtr() and set_rts().
128 * Added FT232BM chip type and support for its extra baud rates (compared
129 * to FT8U232AM).
130 * Took account of special case divisor values for highest baud rates of
131 * FT8U232AM and FT232BM.
132 * For TIOCSSERIAL, forced alt_speed to 0 when ASYNC_SPD_CUST kludge used,
133 * as previous alt_speed setting is now stale.
134 * Moved startup code common between the startup routines for the
135 * different chip types into a common subroutine.
136 *
137 * (17/Feb/2003) Bill Ryder
138 * Added write urb buffer pool on a per device basis
139 * Added more checking for open file on callbacks (fixed OOPS)
140 * Added CrystalFontz 632 and 634 PIDs
141 * (thanx to CrystalFontz for the sample devices - they flushed out
142 * some driver bugs)
143 * Minor debugging message changes
144 * Added throttle, unthrottle and chars_in_buffer functions
145 * Fixed FTDI_SIO (the original device) bug
146 * Fixed some shutdown handling
147 *
148 *
149 *
150 *
151 * (07/Jun/2002) Kuba Ober
152 * Changed FTDI_SIO_BASE_BAUD_TO_DIVISOR macro into ftdi_baud_to_divisor
153 * function. It was getting too complex.
154 * Fix the divisor calculation logic which was setting divisor of 0.125
155 * instead of 0.5 for fractional parts of divisor equal to 5/8, 6/8, 7/8.
156 * Also make it bump up the divisor to next integer in case of 7/8 - it's
157 * a better approximation.
158 *
159 * (25/Jul/2002) Bill Ryder inserted Dmitri's TIOCMIWAIT patch
160 * Not tested by me but it doesn't break anything I use.
161 *
162 * (04/Jan/2002) Kuba Ober
163 * Implemented 38400 baudrate kludge, where it can be substituted with other
164 * values. That's the only way to set custom baudrates.
165 * Implemented TIOCSSERIAL, TIOCGSERIAL ioctl's so that setserial is happy.
166 * FIXME: both baudrate things should eventually go to usbserial.c as other
167 * devices may need that functionality too. Actually, it can probably be
168 * merged in serial.c somehow - too many drivers repeat this code over
169 * and over.
170 * Fixed baudrate forgetfulness - open() used to reset baudrate to 9600 every time.
171 * Divisors for baudrates are calculated by a macro.
172 * Small code cleanups. Ugly whitespace changes for Plato's sake only ;-].
173 *
174 * (04/Nov/2001) Bill Ryder
175 * Fixed bug in read_bulk_callback where incorrect urb buffer was used.
176 * Cleaned up write offset calculation
177 * Added write_room since default values can be incorrect for sio
178 * Changed write_bulk_callback to use same queue_task as other drivers
179 * (the previous version caused panics)
180 * Removed port iteration code since the device only has one I/O port and it
181 * was wrong anyway.
182 *
183 * (31/May/2001) gkh
184 * Switched from using spinlock to a semaphore, which fixes lots of problems.
185 *
186 * (23/May/2001) Bill Ryder
187 * Added runtime debug patch (thanx Tyson D Sawyer).
188 * Cleaned up comments for 8U232
189 * Added parity, framing and overrun error handling
190 * Added receive break handling.
191 *
192 * (04/08/2001) gb
193 * Identify version on module load.
194 *
195 * (18/March/2001) Bill Ryder
196 * (Not released)
197 * Added send break handling. (requires kernel patch too)
198 * Fixed 8U232AM hardware RTS/CTS etc status reporting.
199 * Added flipbuf fix copied from generic device
200 *
201 * (12/3/2000) Bill Ryder
202 * Added support for 8U232AM device.
203 * Moved PID and VIDs into header file only.
204 * Turned on low-latency for the tty (device will do high baudrates)
205 * Added shutdown routine to close files when device removed.
206 * More debug and error message cleanups.
207 *
208 * (11/13/2000) Bill Ryder
209 * Added spinlock protected open code and close code.
210 * Multiple opens work (sort of - see webpage mentioned above).
211 * Cleaned up comments. Removed multiple PID/VID definitions.
212 * Factorised cts/dtr code
213 * Made use of __FUNCTION__ in dbg's
214 *
215 * (11/01/2000) Adam J. Richter
216 * usb_device_id table support
217 *
218 * (10/05/2000) gkh
219 * Fixed bug with urb->dev not being set properly, now that the usb
220 * core needs it.
221 *
222 * (09/11/2000) gkh
223 * Removed DEBUG #ifdefs with call to usb_serial_debug_data
224 *
225 * (07/19/2000) gkh
226 * Added module_init and module_exit functions to handle the fact that this
227 * driver is a loadable module now.
228 *
229 * (04/04/2000) Bill Ryder
230 * Fixed bugs in TCGET/TCSET ioctls (by removing them - they are
231 * handled elsewhere in the tty io driver chain).
232 *
233 * (03/30/2000) Bill Ryder
234 * Implemented lots of ioctls
235 * Fixed a race condition in write
236 * Changed some dbg's to errs
237 *
238 * (03/26/2000) gkh
239 * Split driver up into device specific pieces.
240 *
241 */
242
243 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
244 /* Thanx to FTDI for so kindly providing details of the protocol required */
245 /* to talk to the device */
246 /* Thanx to gkh and the rest of the usb dev group for all code I have assimilated :-) */
247
248 #include <linux/config.h>
249 #include <linux/kernel.h>
250 #include <linux/errno.h>
251 #include <linux/init.h>
252 #include <linux/slab.h>
253 #include <linux/tty.h>
254 #include <linux/tty_driver.h>
255 #include <linux/tty_flip.h>
256 #include <linux/module.h>
257 #include <linux/spinlock.h>
258 #include <asm/uaccess.h>
259 #include <linux/usb.h>
260 #include <linux/serial.h>
261 #include "usb-serial.h"
262 #include "ftdi_sio.h"
263
264 /*
265 * Version Information
266 */
267 #define DRIVER_VERSION "v1.4.1"
268 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
269 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
270
271 static int debug;
272
273 static struct usb_device_id id_table_sio [] = {
274 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
275 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
276 { } /* Terminating entry */
277 };
278
279 /*
280 * The 8U232AM has the same API as the sio except for:
281 * - it can support MUCH higher baudrates; up to:
282 * o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
283 * o 230400 at 12MHz
284 * so .. 8U232AM's baudrate setting codes are different
285 * - it has a two byte status code.
286 * - it returns characters every 16ms (the FTDI does it every 40ms)
287 *
288 * the bcdDevice value is used to differentiate FT232BM and FT245BM from
289 * the earlier FT8U232AM and FT8U232BM. For now, include all known VID/PID
290 * combinations in both tables.
291 * FIXME: perhaps bcdDevice can also identify 12MHz devices, but I don't know
292 * if those ever went into mass production. [Ian Abbott]
293 */
294
295
296 static struct usb_device_id id_table_8U232AM [] = {
297 { USB_DEVICE_VER(FTDI_VID, FTDI_IRTRANS_PID, 0, 0x3ff) },
298 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_PID, 0, 0x3ff) },
299 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_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_VID, FTDI_RM_CANVIEW_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 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_0_PID, 0, 0x3ff) },
378 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID, 0, 0x3ff) },
379 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID, 0, 0x3ff) },
380 { } /* Terminating entry */
381 };
382
383
384 static struct usb_device_id id_table_FT232BM [] = {
385 { USB_DEVICE_VER(FTDI_VID, FTDI_IRTRANS_PID, 0x400, 0xffff) },
386 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_PID, 0x400, 0xffff) },
387 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_ALT_PID, 0x400, 0xffff) },
388 { USB_DEVICE_VER(FTDI_VID, FTDI_RELAIS_PID, 0x400, 0xffff) },
389 { USB_DEVICE_VER(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID, 0x400, 0xffff) },
390 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_632_PID, 0x400, 0xffff) },
391 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_634_PID, 0x400, 0xffff) },
392 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_547_PID, 0x400, 0xffff) },
393 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_633_PID, 0x400, 0xffff) },
394 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_631_PID, 0x400, 0xffff) },
395 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_635_PID, 0x400, 0xffff) },
396 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_640_PID, 0x400, 0xffff) },
397 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_642_PID, 0x400, 0xffff) },
398 { USB_DEVICE_VER(FTDI_VID, FTDI_VNHCPCUSB_D_PID, 0x400, 0xffff) },
399 { USB_DEVICE_VER(FTDI_VID, FTDI_DSS20_PID, 0x400, 0xffff) },
400 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_0_PID, 0x400, 0xffff) },
401 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_1_PID, 0x400, 0xffff) },
402 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_2_PID, 0x400, 0xffff) },
403 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_3_PID, 0x400, 0xffff) },
404 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_4_PID, 0x400, 0xffff) },
405 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_5_PID, 0x400, 0xffff) },
406 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_6_PID, 0x400, 0xffff) },
407 { USB_DEVICE_VER(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID, 0x400, 0xffff) },
408 { USB_DEVICE_VER(FTDI_VID, FTDI_PIEGROUP_PID, 0x400, 0xffff) },
409 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2101_PID, 0x400, 0xffff) },
410 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2102_PID, 0x400, 0xffff) },
411 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2103_PID, 0x400, 0xffff) },
412 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2104_PID, 0x400, 0xffff) },
413 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_1_PID, 0x400, 0xffff) },
414 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_2_PID, 0x400, 0xffff) },
415 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_1_PID, 0x400, 0xffff) },
416 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_2_PID, 0x400, 0xffff) },
417 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_1_PID, 0x400, 0xffff) },
418 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_2_PID, 0x400, 0xffff) },
419 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_1_PID, 0x400, 0xffff) },
420 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_2_PID, 0x400, 0xffff) },
421 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_3_PID, 0x400, 0xffff) },
422 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_4_PID, 0x400, 0xffff) },
423 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_1_PID, 0x400, 0xffff) },
424 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_2_PID, 0x400, 0xffff) },
425 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_3_PID, 0x400, 0xffff) },
426 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_4_PID, 0x400, 0xffff) },
427 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_1_PID, 0x400, 0xffff) },
428 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_2_PID, 0x400, 0xffff) },
429 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_3_PID, 0x400, 0xffff) },
430 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_4_PID, 0x400, 0xffff) },
431 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_1_PID, 0x400, 0xffff) },
432 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_2_PID, 0x400, 0xffff) },
433 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_3_PID, 0x400, 0xffff) },
434 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_4_PID, 0x400, 0xffff) },
435 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_5_PID, 0x400, 0xffff) },
436 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_6_PID, 0x400, 0xffff) },
437 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_7_PID, 0x400, 0xffff) },
438 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_8_PID, 0x400, 0xffff) },
439 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_1_PID, 0x400, 0xffff) },
440 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_2_PID, 0x400, 0xffff) },
441 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_3_PID, 0x400, 0xffff) },
442 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_4_PID, 0x400, 0xffff) },
443 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_5_PID, 0x400, 0xffff) },
444 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_6_PID, 0x400, 0xffff) },
445 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_7_PID, 0x400, 0xffff) },
446 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_8_PID, 0x400, 0xffff) },
447 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_1_PID, 0x400, 0xffff) },
448 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_2_PID, 0x400, 0xffff) },
449 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_3_PID, 0x400, 0xffff) },
450 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_4_PID, 0x400, 0xffff) },
451 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_5_PID, 0x400, 0xffff) },
452 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_6_PID, 0x400, 0xffff) },
453 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_7_PID, 0x400, 0xffff) },
454 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_8_PID, 0x400, 0xffff) },
455 { USB_DEVICE_VER(IDTECH_VID, IDTECH_IDT1221U_PID, 0x400, 0xffff) },
456 { USB_DEVICE_VER(OCT_VID, OCT_US101_PID, 0x400, 0xffff) },
457 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_1, 0x400, 0xffff) },
458 { USB_DEVICE_VER(FTDI_VID, PROTEGO_R2X0, 0x400, 0xffff) },
459 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_3, 0x400, 0xffff) },
460 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_4, 0x400, 0xffff) },
461 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E808_PID, 0x400, 0xffff) },
462 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E809_PID, 0x400, 0xffff) },
463 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80A_PID, 0x400, 0xffff) },
464 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80B_PID, 0x400, 0xffff) },
465 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80C_PID, 0x400, 0xffff) },
466 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80D_PID, 0x400, 0xffff) },
467 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80E_PID, 0x400, 0xffff) },
468 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80F_PID, 0x400, 0xffff) },
469 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E888_PID, 0x400, 0xffff) },
470 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E889_PID, 0x400, 0xffff) },
471 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88A_PID, 0x400, 0xffff) },
472 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88B_PID, 0x400, 0xffff) },
473 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88C_PID, 0x400, 0xffff) },
474 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88D_PID, 0x400, 0xffff) },
475 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88E_PID, 0x400, 0xffff) },
476 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88F_PID, 0x400, 0xffff) },
477 { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UO100_PID, 0x400, 0xffff) },
478 { USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) },
479 { USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) },
480 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) },
481 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_1_PID, 0x400, 0xffff) },
482 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_2_PID, 0x400, 0xffff) },
483 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
484 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
485 { USB_DEVICE_VER(FTDI_VID, INSIDE_ACCESSO, 0x400, 0xffff) },
486 { USB_DEVICE_VER(INTREPID_VID, INTREPID_VALUECAN_PID, 0x400, 0xffff) },
487 { USB_DEVICE_VER(INTREPID_VID, INTREPID_NEOVI_PID, 0x400, 0xffff) },
488 { USB_DEVICE_VER(FALCOM_VID, FALCOM_TWIST_PID, 0x400, 0xffff) },
489 { USB_DEVICE_VER(FTDI_VID, FTDI_SUUNTO_SPORTS_PID, 0x400, 0xffff) },
490 { USB_DEVICE_VER(FTDI_VID, FTDI_RM_CANVIEW_PID, 0x400, 0xffff) },
491 { USB_DEVICE_VER(BANDB_VID, BANDB_USOTL4_PID, 0x400, 0xffff) },
492 { USB_DEVICE_VER(BANDB_VID, BANDB_USTL4_PID, 0x400, 0xffff) },
493 { USB_DEVICE_VER(BANDB_VID, BANDB_USO9ML2_PID, 0x400, 0xffff) },
494 { USB_DEVICE_VER(FTDI_VID, EVER_ECO_PRO_CDS, 0x400, 0xffff) },
495 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_0_PID, 0x400, 0xffff) },
496 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID, 0x400, 0xffff) },
497 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID, 0x400, 0xffff) },
498 { USB_DEVICE_VER(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID, 0x400, 0xffff) },
499 { } /* Terminating entry */
500 };
501
502
503 static struct usb_device_id id_table_USB_UIRT [] = {
504 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID) },
505 { } /* Terminating entry */
506 };
507
508
509 static struct usb_device_id id_table_HE_TIRA1 [] = {
510 { USB_DEVICE_VER(FTDI_VID, FTDI_HE_TIRA1_PID, 0x400, 0xffff) },
511 { } /* Terminating entry */
512 };
513
514
515 static struct usb_device_id id_table_FT2232C[] = {
516 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
517 { } /* Terminating entry */
518 };
519
520
521 static struct usb_device_id id_table_combined [] = {
522 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
523 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
524 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
525 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
526 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
527 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
528 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
529 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
530 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
531 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
532 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
533 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
534 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
535 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
536 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
537 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
538 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
539 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
540 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
541 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_0_PID, 0x400, 0xffff) },
542 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_1_PID, 0x400, 0xffff) },
543 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_2_PID, 0x400, 0xffff) },
544 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_3_PID, 0x400, 0xffff) },
545 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_4_PID, 0x400, 0xffff) },
546 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_5_PID, 0x400, 0xffff) },
547 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_6_PID, 0x400, 0xffff) },
548 { USB_DEVICE_VER(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID, 0x400, 0xffff) },
549 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
550 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
551 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
552 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
553 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
554 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
555 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
556 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
557 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
558 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
559 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
560 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
561 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
562 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
563 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
564 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
565 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
566 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
567 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
568 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
569 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
570 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
571 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
572 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
573 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
574 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
575 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
576 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
577 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
578 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
579 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
580 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
581 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
582 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
583 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
584 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
585 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
586 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
587 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
588 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
589 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
590 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
591 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
592 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
593 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
594 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
595 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
596 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
597 { USB_DEVICE(OCT_VID, OCT_US101_PID) },
598 { USB_DEVICE_VER(FTDI_VID, FTDI_HE_TIRA1_PID, 0x400, 0xffff) },
599 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID) },
600 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
601 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
602 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
603 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
604 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E808_PID, 0x400, 0xffff) },
605 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E809_PID, 0x400, 0xffff) },
606 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80A_PID, 0x400, 0xffff) },
607 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80B_PID, 0x400, 0xffff) },
608 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80C_PID, 0x400, 0xffff) },
609 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80D_PID, 0x400, 0xffff) },
610 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80E_PID, 0x400, 0xffff) },
611 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80F_PID, 0x400, 0xffff) },
612 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E888_PID, 0x400, 0xffff) },
613 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E889_PID, 0x400, 0xffff) },
614 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88A_PID, 0x400, 0xffff) },
615 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88B_PID, 0x400, 0xffff) },
616 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88C_PID, 0x400, 0xffff) },
617 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88D_PID, 0x400, 0xffff) },
618 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88E_PID, 0x400, 0xffff) },
619 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88F_PID, 0x400, 0xffff) },
620 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
621 { USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) },
622 { USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) },
623 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) },
624 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_1_PID, 0x400, 0xffff) },
625 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_2_PID, 0x400, 0xffff) },
626 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
627 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
628 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
629 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
630 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
631 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
632 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
633 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
634 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
635 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
636 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
637 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
638 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_0_PID) },
639 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
640 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
641 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
642 { USB_DEVICE_VER(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID, 0x400, 0xffff) },
643 { } /* Terminating entry */
644 };
645
646 MODULE_DEVICE_TABLE (usb, id_table_combined);
647
648 static struct usb_driver ftdi_driver = {
649 .name = "ftdi_sio",
650 .probe = usb_serial_probe,
651 .disconnect = usb_serial_disconnect,
652 .id_table = id_table_combined,
653 };
654
655 static char *ftdi_chip_name[] = {
656 [SIO] = "SIO", /* the serial part of FT8U100AX */
657 [FT8U232AM] = "FT8U232AM",
658 [FT232BM] = "FT232BM",
659 [FT2232C] = "FT2232C",
660 };
661
662
663 /* Constants for read urb and write urb */
664 #define BUFSZ 512
665 #define PKTSZ 64
666
667 /* rx_flags */
668 #define THROTTLED 0x01
669 #define ACTUALLY_THROTTLED 0x02
670
671 struct ftdi_private {
672 ftdi_chip_type_t chip_type;
673 /* type of the device, either SIO or FT8U232AM */
674 int baud_base; /* baud base clock for divisor setting */
675 int custom_divisor; /* custom_divisor kludge, this is for baud_base (different from what goes to the chip!) */
676 __u16 last_set_data_urb_value ;
677 /* the last data state set - needed for doing a break */
678 int write_offset; /* This is the offset in the usb data block to write the serial data -
679 * it is different between devices
680 */
681 int flags; /* some ASYNC_xxxx flags are supported */
682 unsigned long last_dtr_rts; /* saved modem control outputs */
683 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
684 char prev_status, diff_status; /* Used for TIOCMIWAIT */
685 __u8 rx_flags; /* receive state flags (throttling) */
686 spinlock_t rx_lock; /* spinlock for receive state */
687
688 __u16 interface; /* FT2232C port interface (0 for FT232/245) */
689
690 int force_baud; /* if non-zero, force the baud rate to this value */
691 int force_rtscts; /* if non-zero, force RTS-CTS to always be enabled */
692 };
693
694 /* Used for TIOCMIWAIT */
695 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
696 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
697 /* End TIOCMIWAIT */
698
699 #define FTDI_IMPL_ASYNC_FLAGS = ( ASYNC_SPD_HI | ASYNC_SPD_VHI \
700 ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP )
701
702 /* function prototypes for a FTDI serial converter */
703 static int ftdi_SIO_startup (struct usb_serial *serial);
704 static int ftdi_8U232AM_startup (struct usb_serial *serial);
705 static int ftdi_FT232BM_startup (struct usb_serial *serial);
706 static int ftdi_FT2232C_startup (struct usb_serial *serial);
707 static int ftdi_USB_UIRT_startup (struct usb_serial *serial);
708 static int ftdi_HE_TIRA1_startup (struct usb_serial *serial);
709 static void ftdi_shutdown (struct usb_serial *serial);
710 static int ftdi_open (struct usb_serial_port *port, struct file *filp);
711 static void ftdi_close (struct usb_serial_port *port, struct file *filp);
712 static int ftdi_write (struct usb_serial_port *port, const unsigned char *buf, int count);
713 static int ftdi_write_room (struct usb_serial_port *port);
714 static int ftdi_chars_in_buffer (struct usb_serial_port *port);
715 static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
716 static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
717 static void ftdi_process_read (struct usb_serial_port *port);
718 static void ftdi_set_termios (struct usb_serial_port *port, struct termios * old);
719 static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file);
720 static int ftdi_tiocmset (struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear);
721 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
722 static void ftdi_break_ctl (struct usb_serial_port *port, int break_state );
723 static void ftdi_throttle (struct usb_serial_port *port);
724 static void ftdi_unthrottle (struct usb_serial_port *port);
725
726 static unsigned short int ftdi_232am_baud_base_to_divisor (int baud, int base);
727 static unsigned short int ftdi_232am_baud_to_divisor (int baud);
728 static __u32 ftdi_232bm_baud_base_to_divisor (int baud, int base);
729 static __u32 ftdi_232bm_baud_to_divisor (int baud);
730
731 static struct usb_serial_device_type ftdi_SIO_device = {
732 .owner = THIS_MODULE,
733 .name = "FTDI SIO",
734 .id_table = id_table_sio,
735 .num_interrupt_in = 0,
736 .num_bulk_in = 1,
737 .num_bulk_out = 1,
738 .num_ports = 1,
739 .open = ftdi_open,
740 .close = ftdi_close,
741 .throttle = ftdi_throttle,
742 .unthrottle = ftdi_unthrottle,
743 .write = ftdi_write,
744 .write_room = ftdi_write_room,
745 .chars_in_buffer = ftdi_chars_in_buffer,
746 .read_bulk_callback = ftdi_read_bulk_callback,
747 .write_bulk_callback = ftdi_write_bulk_callback,
748 .tiocmget = ftdi_tiocmget,
749 .tiocmset = ftdi_tiocmset,
750 .ioctl = ftdi_ioctl,
751 .set_termios = ftdi_set_termios,
752 .break_ctl = ftdi_break_ctl,
753 .attach = ftdi_SIO_startup,
754 .shutdown = ftdi_shutdown,
755 };
756
757 static struct usb_serial_device_type ftdi_8U232AM_device = {
758 .owner = THIS_MODULE,
759 .name = "FTDI 8U232AM Compatible",
760 .id_table = id_table_8U232AM,
761 .num_interrupt_in = 0,
762 .num_bulk_in = 1,
763 .num_bulk_out = 1,
764 .num_ports = 1,
765 .open = ftdi_open,
766 .close = ftdi_close,
767 .throttle = ftdi_throttle,
768 .unthrottle = ftdi_unthrottle,
769 .write = ftdi_write,
770 .write_room = ftdi_write_room,
771 .chars_in_buffer = ftdi_chars_in_buffer,
772 .read_bulk_callback = ftdi_read_bulk_callback,
773 .write_bulk_callback = ftdi_write_bulk_callback,
774 .tiocmget = ftdi_tiocmget,
775 .tiocmset = ftdi_tiocmset,
776 .ioctl = ftdi_ioctl,
777 .set_termios = ftdi_set_termios,
778 .break_ctl = ftdi_break_ctl,
779 .attach = ftdi_8U232AM_startup,
780 .shutdown = ftdi_shutdown,
781 };
782
783 static struct usb_serial_device_type ftdi_FT232BM_device = {
784 .owner = THIS_MODULE,
785 .name = "FTDI FT232BM Compatible",
786 .id_table = id_table_FT232BM,
787 .num_interrupt_in = 0,
788 .num_bulk_in = 1,
789 .num_bulk_out = 1,
790 .num_ports = 1,
791 .open = ftdi_open,
792 .close = ftdi_close,
793 .throttle = ftdi_throttle,
794 .unthrottle = ftdi_unthrottle,
795 .write = ftdi_write,
796 .write_room = ftdi_write_room,
797 .chars_in_buffer = ftdi_chars_in_buffer,
798 .read_bulk_callback = ftdi_read_bulk_callback,
799 .write_bulk_callback = ftdi_write_bulk_callback,
800 .tiocmget = ftdi_tiocmget,
801 .tiocmset = ftdi_tiocmset,
802 .ioctl = ftdi_ioctl,
803 .set_termios = ftdi_set_termios,
804 .break_ctl = ftdi_break_ctl,
805 .attach = ftdi_FT232BM_startup,
806 .shutdown = ftdi_shutdown,
807 };
808
809 static struct usb_serial_device_type ftdi_FT2232C_device = {
810 .owner = THIS_MODULE,
811 .name = "FTDI FT2232C Compatible",
812 .id_table = id_table_FT2232C,
813 .num_interrupt_in = 0,
814 .num_bulk_in = 1,
815 .num_bulk_out = 1,
816 .num_ports = 1,
817 .open = ftdi_open,
818 .close = ftdi_close,
819 .throttle = ftdi_throttle,
820 .unthrottle = ftdi_unthrottle,
821 .write = ftdi_write,
822 .write_room = ftdi_write_room,
823 .chars_in_buffer = ftdi_chars_in_buffer,
824 .read_bulk_callback = ftdi_read_bulk_callback,
825 .write_bulk_callback = ftdi_write_bulk_callback,
826 .tiocmget = ftdi_tiocmget,
827 .tiocmset = ftdi_tiocmset,
828 .ioctl = ftdi_ioctl,
829 .set_termios = ftdi_set_termios,
830 .break_ctl = ftdi_break_ctl,
831 .attach = ftdi_FT2232C_startup,
832 .shutdown = ftdi_shutdown,
833 };
834
835 static struct usb_serial_device_type ftdi_USB_UIRT_device = {
836 .owner = THIS_MODULE,
837 .name = "USB-UIRT Infrared Tranceiver",
838 .id_table = id_table_USB_UIRT,
839 .num_interrupt_in = 0,
840 .num_bulk_in = 1,
841 .num_bulk_out = 1,
842 .num_ports = 1,
843 .open = ftdi_open,
844 .close = ftdi_close,
845 .throttle = ftdi_throttle,
846 .unthrottle = ftdi_unthrottle,
847 .write = ftdi_write,
848 .write_room = ftdi_write_room,
849 .chars_in_buffer = ftdi_chars_in_buffer,
850 .read_bulk_callback = ftdi_read_bulk_callback,
851 .write_bulk_callback = ftdi_write_bulk_callback,
852 .tiocmget = ftdi_tiocmget,
853 .tiocmset = ftdi_tiocmset,
854 .ioctl = ftdi_ioctl,
855 .set_termios = ftdi_set_termios,
856 .break_ctl = ftdi_break_ctl,
857 .attach = ftdi_USB_UIRT_startup,
858 .shutdown = ftdi_shutdown,
859 };
860
861 /* The TIRA1 is based on a FT232BM which requires a fixed baud rate of 100000
862 * and which requires RTS-CTS to be enabled. */
863 static struct usb_serial_device_type ftdi_HE_TIRA1_device = {
864 .owner = THIS_MODULE,
865 .name = "Home-Electronics TIRA-1 IR Transceiver",
866 .id_table = id_table_HE_TIRA1,
867 .num_interrupt_in = 0,
868 .num_bulk_in = 1,
869 .num_bulk_out = 1,
870 .num_ports = 1,
871 .open = ftdi_open,
872 .close = ftdi_close,
873 .throttle = ftdi_throttle,
874 .unthrottle = ftdi_unthrottle,
875 .write = ftdi_write,
876 .write_room = ftdi_write_room,
877 .chars_in_buffer = ftdi_chars_in_buffer,
878 .read_bulk_callback = ftdi_read_bulk_callback,
879 .write_bulk_callback = ftdi_write_bulk_callback,
880 .tiocmget = ftdi_tiocmget,
881 .tiocmset = ftdi_tiocmset,
882 .ioctl = ftdi_ioctl,
883 .set_termios = ftdi_set_termios,
884 .break_ctl = ftdi_break_ctl,
885 .attach = ftdi_HE_TIRA1_startup,
886 .shutdown = ftdi_shutdown,
887 };
888
889
890
891 #define WDR_TIMEOUT 5000 /* default urb timeout */
892
893 /* High and low are for DTR, RTS etc etc */
894 #define HIGH 1
895 #define LOW 0
896
897 /*
898 * ***************************************************************************
899 * Utlity functions
900 * ***************************************************************************
901 */
902
903 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
904 {
905 unsigned short int divisor;
906 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
907 if ((divisor3 & 0x7) == 7) divisor3 ++; // round x.7/8 up to x+1
908 divisor = divisor3 >> 3;
909 divisor3 &= 0x7;
910 if (divisor3 == 1) divisor |= 0xc000; else // 0.125
911 if (divisor3 >= 4) divisor |= 0x4000; else // 0.5
912 if (divisor3 != 0) divisor |= 0x8000; // 0.25
913 if (divisor == 1) divisor = 0; /* special case for maximum baud rate */
914 return divisor;
915 }
916
917 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
918 {
919 return(ftdi_232am_baud_base_to_divisor(baud, 48000000));
920 }
921
922 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
923 {
924 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
925 __u32 divisor;
926 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left
927 divisor = divisor3 >> 3;
928 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
929 /* Deal with special cases for highest baud rates. */
930 if (divisor == 1) divisor = 0; else // 1.0
931 if (divisor == 0x4001) divisor = 1; // 1.5
932 return divisor;
933 }
934
935 static __u32 ftdi_232bm_baud_to_divisor(int baud)
936 {
937 return(ftdi_232bm_baud_base_to_divisor(baud, 48000000));
938 }
939
940 static int set_rts(struct usb_serial_port *port, int high_or_low)
941 {
942 struct ftdi_private *priv = usb_get_serial_port_data(port);
943 char *buf;
944 unsigned ftdi_high_or_low;
945 int rv;
946
947 buf = kmalloc(1, GFP_NOIO);
948 if (!buf)
949 return -ENOMEM;
950
951 if (high_or_low) {
952 ftdi_high_or_low = FTDI_SIO_SET_RTS_HIGH;
953 priv->last_dtr_rts |= TIOCM_RTS;
954 } else {
955 ftdi_high_or_low = FTDI_SIO_SET_RTS_LOW;
956 priv->last_dtr_rts &= ~TIOCM_RTS;
957 }
958 rv = usb_control_msg(port->serial->dev,
959 usb_sndctrlpipe(port->serial->dev, 0),
960 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
961 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
962 ftdi_high_or_low, priv->interface,
963 buf, 0, WDR_TIMEOUT);
964
965 kfree(buf);
966 return rv;
967 }
968
969
970 static int set_dtr(struct usb_serial_port *port, int high_or_low)
971 {
972 struct ftdi_private *priv = usb_get_serial_port_data(port);
973 char *buf;
974 unsigned ftdi_high_or_low;
975 int rv;
976
977 buf = kmalloc(1, GFP_NOIO);
978 if (!buf)
979 return -ENOMEM;
980
981 if (high_or_low) {
982 ftdi_high_or_low = FTDI_SIO_SET_DTR_HIGH;
983 priv->last_dtr_rts |= TIOCM_DTR;
984 } else {
985 ftdi_high_or_low = FTDI_SIO_SET_DTR_LOW;
986 priv->last_dtr_rts &= ~TIOCM_DTR;
987 }
988 rv = usb_control_msg(port->serial->dev,
989 usb_sndctrlpipe(port->serial->dev, 0),
990 FTDI_SIO_SET_MODEM_CTRL_REQUEST,
991 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
992 ftdi_high_or_low, priv->interface,
993 buf, 0, WDR_TIMEOUT);
994
995 kfree(buf);
996 return rv;
997 }
998
999
1000 static __u32 get_ftdi_divisor(struct usb_serial_port * port);
1001
1002
1003 static int change_speed(struct usb_serial_port *port)
1004 {
1005 struct ftdi_private *priv = usb_get_serial_port_data(port);
1006 char *buf;
1007 __u16 urb_value;
1008 __u16 urb_index;
1009 __u32 urb_index_value;
1010 int rv;
1011
1012 buf = kmalloc(1, GFP_NOIO);
1013 if (!buf)
1014 return -ENOMEM;
1015
1016 urb_index_value = get_ftdi_divisor(port);
1017 urb_value = (__u16)urb_index_value;
1018 urb_index = (__u16)(urb_index_value >> 16);
1019 if (priv->interface) { /* FT2232C */
1020 urb_index = (__u16)((urb_index << 8) | priv->interface);
1021 }
1022
1023 rv = usb_control_msg(port->serial->dev,
1024 usb_sndctrlpipe(port->serial->dev, 0),
1025 FTDI_SIO_SET_BAUDRATE_REQUEST,
1026 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1027 urb_value, urb_index,
1028 buf, 0, 100);
1029
1030 kfree(buf);
1031 return rv;
1032 }
1033
1034
1035 static __u32 get_ftdi_divisor(struct usb_serial_port * port)
1036 { /* get_ftdi_divisor */
1037 struct ftdi_private *priv = usb_get_serial_port_data(port);
1038 __u32 div_value = 0;
1039 int div_okay = 1;
1040 int baud;
1041
1042 /*
1043 * The logic involved in setting the baudrate can be cleanly split in 3 steps.
1044 * Obtaining the actual baud rate is a little tricky since unix traditionally
1045 * somehow ignored the possibility to set non-standard baud rates.
1046 * 1. Standard baud rates are set in tty->termios->c_cflag
1047 * 2. If these are not enough, you can set any speed using alt_speed as follows:
1048 * - set tty->termios->c_cflag speed to B38400
1049 * - set your real speed in tty->alt_speed; it gets ignored when
1050 * alt_speed==0, (or)
1051 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
1052 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], this just
1053 * sets alt_speed to (HI: 57600, VHI: 115200, SHI: 230400, WARP: 460800)
1054 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1055 * 3. You can also set baud rate by setting custom divisor as follows
1056 * - set tty->termios->c_cflag speed to B38400
1057 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows:
1058 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1059 * o custom_divisor set to baud_base / your_new_baudrate
1060 * ** Step 3 is done courtesy of code borrowed from serial.c - I should really
1061 * spend some time and separate+move this common code to serial.c, it is
1062 * replicated in nearly every serial driver you see.
1063 */
1064
1065 /* 1. Get the baud rate from the tty settings, this observes alt_speed hack */
1066
1067 baud = tty_get_baud_rate(port->tty);
1068 dbg("%s - tty_get_baud_rate reports speed %d", __FUNCTION__, baud);
1069
1070 /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */
1071
1072 if (baud == 38400 &&
1073 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1074 (priv->custom_divisor)) {
1075 baud = priv->baud_base / priv->custom_divisor;
1076 dbg("%s - custom divisor %d sets baud rate to %d", __FUNCTION__, priv->custom_divisor, baud);
1077 }
1078
1079 /* 3. Convert baudrate to device-specific divisor */
1080
1081 if (!baud) baud = 9600;
1082 switch(priv->chip_type) {
1083 case SIO: /* SIO chip */
1084 switch(baud) {
1085 case 300: div_value = ftdi_sio_b300; break;
1086 case 600: div_value = ftdi_sio_b600; break;
1087 case 1200: div_value = ftdi_sio_b1200; break;
1088 case 2400: div_value = ftdi_sio_b2400; break;
1089 case 4800: div_value = ftdi_sio_b4800; break;
1090 case 9600: div_value = ftdi_sio_b9600; break;
1091 case 19200: div_value = ftdi_sio_b19200; break;
1092 case 38400: div_value = ftdi_sio_b38400; break;
1093 case 57600: div_value = ftdi_sio_b57600; break;
1094 case 115200: div_value = ftdi_sio_b115200; break;
1095 } /* baud */
1096 if (div_value == 0) {
1097 dbg("%s - Baudrate (%d) requested is not supported", __FUNCTION__, baud);
1098 div_value = ftdi_sio_b9600;
1099 div_okay = 0;
1100 }
1101 break;
1102 case FT8U232AM: /* 8U232AM chip */
1103 if (baud <= 3000000) {
1104 div_value = ftdi_232am_baud_to_divisor(baud);
1105 } else {
1106 dbg("%s - Baud rate too high!", __FUNCTION__);
1107 div_value = ftdi_232am_baud_to_divisor(9600);
1108 div_okay = 0;
1109 }
1110 break;
1111 case FT232BM: /* FT232BM chip */
1112 case FT2232C: /* FT2232C chip */
1113 if (baud <= 3000000) {
1114 div_value = ftdi_232bm_baud_to_divisor(baud);
1115 } else {
1116 dbg("%s - Baud rate too high!", __FUNCTION__);
1117 div_value = ftdi_232bm_baud_to_divisor(9600);
1118 div_okay = 0;
1119 }
1120 break;
1121 } /* priv->chip_type */
1122
1123 if (div_okay) {
1124 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
1125 __FUNCTION__, baud, (unsigned long)div_value,
1126 ftdi_chip_name[priv->chip_type]);
1127 }
1128
1129 return(div_value);
1130 }
1131
1132
1133 static int get_serial_info(struct usb_serial_port * port, struct serial_struct __user * retinfo)
1134 {
1135 struct ftdi_private *priv = usb_get_serial_port_data(port);
1136 struct serial_struct tmp;
1137
1138 if (!retinfo)
1139 return -EFAULT;
1140 memset(&tmp, 0, sizeof(tmp));
1141 tmp.flags = priv->flags;
1142 tmp.baud_base = priv->baud_base;
1143 tmp.custom_divisor = priv->custom_divisor;
1144 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1145 return -EFAULT;
1146 return 0;
1147 } /* get_serial_info */
1148
1149
1150 static int set_serial_info(struct usb_serial_port * port, struct serial_struct __user * newinfo)
1151 { /* set_serial_info */
1152 struct ftdi_private *priv = usb_get_serial_port_data(port);
1153 struct serial_struct new_serial;
1154 struct ftdi_private old_priv;
1155
1156 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1157 return -EFAULT;
1158 old_priv = * priv;
1159
1160 /* Do error checking and permission checking */
1161
1162 if (!capable(CAP_SYS_ADMIN)) {
1163 if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1164 (priv->flags & ~ASYNC_USR_MASK)))
1165 return -EPERM;
1166 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1167 (new_serial.flags & ASYNC_USR_MASK));
1168 priv->custom_divisor = new_serial.custom_divisor;
1169 goto check_and_exit;
1170 }
1171
1172 if ((new_serial.baud_base != priv->baud_base) &&
1173 (new_serial.baud_base < 9600))
1174 return -EINVAL;
1175
1176 /* Make the changes - these are privileged changes! */
1177
1178 priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1179 (new_serial.flags & ASYNC_FLAGS));
1180 priv->custom_divisor = new_serial.custom_divisor;
1181
1182 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1183
1184 check_and_exit:
1185 if ((old_priv.flags & ASYNC_SPD_MASK) !=
1186 (priv->flags & ASYNC_SPD_MASK)) {
1187 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1188 port->tty->alt_speed = 57600;
1189 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1190 port->tty->alt_speed = 115200;
1191 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1192 port->tty->alt_speed = 230400;
1193 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1194 port->tty->alt_speed = 460800;
1195 else
1196 port->tty->alt_speed = 0;
1197 }
1198 if (((old_priv.flags & ASYNC_SPD_MASK) !=
1199 (priv->flags & ASYNC_SPD_MASK)) ||
1200 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1201 (old_priv.custom_divisor != priv->custom_divisor))) {
1202 change_speed(port);
1203 }
1204
1205 return (0);
1206
1207 } /* set_serial_info */
1208
1209
1210 /*
1211 * ***************************************************************************
1212 * Sysfs Attribute
1213 * ***************************************************************************
1214 */
1215
1216 static ssize_t show_latency_timer(struct device *dev, char *buf)
1217 {
1218 struct usb_serial_port *port = to_usb_serial_port(dev);
1219 struct ftdi_private *priv = usb_get_serial_port_data(port);
1220 struct usb_device *udev;
1221 unsigned short latency = 0;
1222 int rv = 0;
1223
1224 udev = to_usb_device(dev);
1225
1226 dbg("%s",__FUNCTION__);
1227
1228 rv = usb_control_msg(udev,
1229 usb_rcvctrlpipe(udev, 0),
1230 FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1231 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1232 0, priv->interface,
1233 (char*) &latency, 1, WDR_TIMEOUT);
1234
1235 if (rv < 0) {
1236 dev_err(dev, "Unable to read latency timer: %i", rv);
1237 return -EIO;
1238 }
1239 return sprintf(buf, "%i\n", latency);
1240 }
1241
1242 /* Write a new value of the latency timer, in units of milliseconds. */
1243 static ssize_t store_latency_timer(struct device *dev, const char *valbuf,
1244 size_t count)
1245 {
1246 struct usb_serial_port *port = to_usb_serial_port(dev);
1247 struct ftdi_private *priv = usb_get_serial_port_data(port);
1248 struct usb_device *udev;
1249 char buf[1];
1250 int v = simple_strtoul(valbuf, NULL, 10);
1251 int rv = 0;
1252
1253 udev = to_usb_device(dev);
1254
1255 dbg("%s: setting latency timer = %i", __FUNCTION__, v);
1256
1257 rv = usb_control_msg(udev,
1258 usb_sndctrlpipe(udev, 0),
1259 FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1260 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1261 v, priv->interface,
1262 buf, 0, WDR_TIMEOUT);
1263
1264 if (rv < 0) {
1265 dev_err(dev, "Unable to write latency timer: %i", rv);
1266 return -EIO;
1267 }
1268
1269 return count;
1270 }
1271
1272 /* Write an event character directly to the FTDI register. The ASCII
1273 value is in the low 8 bits, with the enable bit in the 9th bit. */
1274 static ssize_t store_event_char(struct device *dev, const char *valbuf,
1275 size_t count)
1276 {
1277 struct usb_serial_port *port = to_usb_serial_port(dev);
1278 struct ftdi_private *priv = usb_get_serial_port_data(port);
1279 struct usb_device *udev;
1280 char buf[1];
1281 int v = simple_strtoul(valbuf, NULL, 10);
1282 int rv = 0;
1283
1284 udev = to_usb_device(dev);
1285
1286 dbg("%s: setting event char = %i", __FUNCTION__, v);
1287
1288 rv = usb_control_msg(udev,
1289 usb_sndctrlpipe(udev, 0),
1290 FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1291 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1292 v, priv->interface,
1293 buf, 0, WDR_TIMEOUT);
1294
1295 if (rv < 0) {
1296 dbg("Unable to write event character: %i", rv);
1297 return -EIO;
1298 }
1299
1300 return count;
1301 }
1302
1303 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, store_latency_timer);
1304 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1305
1306 static void create_sysfs_attrs(struct usb_serial *serial)
1307 {
1308 struct ftdi_private *priv;
1309 struct usb_device *udev;
1310
1311 dbg("%s",__FUNCTION__);
1312
1313 priv = usb_get_serial_port_data(serial->port[0]);
1314 udev = serial->dev;
1315
1316 /* XXX I've no idea if the original SIO supports the event_char
1317 * sysfs parameter, so I'm playing it safe. */
1318 if (priv->chip_type != SIO) {
1319 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
1320 device_create_file(&udev->dev, &dev_attr_event_char);
1321 if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) {
1322 device_create_file(&udev->dev, &dev_attr_latency_timer);
1323 }
1324 }
1325 }
1326
1327 static void remove_sysfs_attrs(struct usb_serial *serial)
1328 {
1329 struct ftdi_private *priv;
1330 struct usb_device *udev;
1331
1332 dbg("%s",__FUNCTION__);
1333
1334 priv = usb_get_serial_port_data(serial->port[0]);
1335 udev = serial->dev;
1336
1337 /* XXX see create_sysfs_attrs */
1338 if (priv->chip_type != SIO) {
1339 device_remove_file(&udev->dev, &dev_attr_event_char);
1340 if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) {
1341 device_remove_file(&udev->dev, &dev_attr_latency_timer);
1342 }
1343 }
1344
1345 }
1346
1347 /*
1348 * ***************************************************************************
1349 * FTDI driver specific functions
1350 * ***************************************************************************
1351 */
1352
1353 /* Common startup subroutine */
1354 /* Called from ftdi_SIO_startup, etc. */
1355 static int ftdi_common_startup (struct usb_serial *serial)
1356 {
1357 struct usb_serial_port *port = serial->port[0];
1358 struct ftdi_private *priv;
1359
1360 dbg("%s",__FUNCTION__);
1361
1362 priv = kmalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1363 if (!priv){
1364 err("%s- kmalloc(%Zd) failed.", __FUNCTION__, sizeof(struct ftdi_private));
1365 return -ENOMEM;
1366 }
1367 memset(priv, 0, sizeof(*priv));
1368
1369 spin_lock_init(&priv->rx_lock);
1370 init_waitqueue_head(&priv->delta_msr_wait);
1371 /* This will push the characters through immediately rather
1372 than queue a task to deliver them */
1373 priv->flags = ASYNC_LOW_LATENCY;
1374
1375 /* Increase the size of read buffers */
1376 kfree(port->bulk_in_buffer);
1377 port->bulk_in_buffer = kmalloc (BUFSZ, GFP_KERNEL);
1378 if (!port->bulk_in_buffer) {
1379 kfree (priv);
1380 return -ENOMEM;
1381 }
1382 if (port->read_urb) {
1383 port->read_urb->transfer_buffer = port->bulk_in_buffer;
1384 port->read_urb->transfer_buffer_length = BUFSZ;
1385 }
1386
1387 /* Free port's existing write urb and transfer buffer. */
1388 if (port->write_urb) {
1389 usb_free_urb (port->write_urb);
1390 port->write_urb = NULL;
1391 }
1392 kfree(port->bulk_out_buffer);
1393 port->bulk_out_buffer = NULL;
1394
1395 usb_set_serial_port_data(serial->port[0], priv);
1396
1397 return (0);
1398 }
1399
1400
1401 /* Startup for the SIO chip */
1402 /* Called from usbserial:serial_probe */
1403 static int ftdi_SIO_startup (struct usb_serial *serial)
1404 {
1405 struct ftdi_private *priv;
1406 int err;
1407
1408 dbg("%s",__FUNCTION__);
1409
1410 err = ftdi_common_startup(serial);
1411 if (err){
1412 return (err);
1413 }
1414
1415 priv = usb_get_serial_port_data(serial->port[0]);
1416 priv->chip_type = SIO;
1417 priv->baud_base = 12000000 / 16;
1418 priv->write_offset = 1;
1419
1420 return (0);
1421 }
1422
1423 /* Startup for the 8U232AM chip */
1424 /* Called from usbserial:serial_probe */
1425 static int ftdi_8U232AM_startup (struct usb_serial *serial)
1426 { /* ftdi_8U232AM_startup */
1427 struct ftdi_private *priv;
1428 int err;
1429
1430 dbg("%s",__FUNCTION__);
1431 err = ftdi_common_startup(serial);
1432 if (err){
1433 return (err);
1434 }
1435
1436 priv = usb_get_serial_port_data(serial->port[0]);
1437 priv->chip_type = FT8U232AM;
1438 priv->baud_base = 48000000 / 2; /* Would be / 16, but FTDI supports 0.125, 0.25 and 0.5 divisor fractions! */
1439
1440 create_sysfs_attrs(serial);
1441
1442 return (0);
1443 } /* ftdi_8U232AM_startup */
1444
1445 /* Startup for the FT232BM chip */
1446 /* Called from usbserial:serial_probe */
1447 static int ftdi_FT232BM_startup (struct usb_serial *serial)
1448 { /* ftdi_FT232BM_startup */
1449 struct ftdi_private *priv;
1450 int err;
1451
1452 dbg("%s",__FUNCTION__);
1453 err = ftdi_common_startup(serial);
1454 if (err){
1455 return (err);
1456 }
1457
1458 priv = usb_get_serial_port_data(serial->port[0]);
1459 priv->chip_type = FT232BM;
1460 priv->baud_base = 48000000 / 2; /* Would be / 16, but FT232BM supports multiple of 0.125 divisor fractions! */
1461
1462 create_sysfs_attrs(serial);
1463
1464 return (0);
1465 } /* ftdi_FT232BM_startup */
1466
1467 /* Startup for the FT2232C chip */
1468 /* Called from usbserial:serial_probe */
1469 static int ftdi_FT2232C_startup (struct usb_serial *serial)
1470 { /* ftdi_FT2232C_startup */
1471 struct ftdi_private *priv;
1472 int err;
1473 int inter;
1474
1475 dbg("%s",__FUNCTION__);
1476 err = ftdi_common_startup(serial);
1477 if (err){
1478 return (err);
1479 }
1480
1481 priv = usb_get_serial_port_data(serial->port[0]);
1482 priv->chip_type = FT2232C;
1483 inter = serial->interface->altsetting->desc.bInterfaceNumber;
1484
1485 if (inter) {
1486 priv->interface = PIT_SIOB;
1487 }
1488 else {
1489 priv->interface = PIT_SIOA;
1490 }
1491 priv->baud_base = 48000000 / 2; /* Would be / 16, but FT2232C supports multiple of 0.125 divisor fractions! */
1492
1493 create_sysfs_attrs(serial);
1494
1495 return (0);
1496 } /* ftdi_FT2232C_startup */
1497
1498 /* Startup for the USB-UIRT device, which requires hardwired baudrate (38400 gets mapped to 312500) */
1499 /* Called from usbserial:serial_probe */
1500 static int ftdi_USB_UIRT_startup (struct usb_serial *serial)
1501 { /* ftdi_USB_UIRT_startup */
1502 struct ftdi_private *priv;
1503 int err;
1504
1505 dbg("%s",__FUNCTION__);
1506 err = ftdi_8U232AM_startup(serial);
1507 if (err){
1508 return (err);
1509 }
1510
1511 priv = usb_get_serial_port_data(serial->port[0]);
1512 priv->flags |= ASYNC_SPD_CUST;
1513 priv->custom_divisor = 77;
1514 priv->force_baud = B38400;
1515
1516 return (0);
1517 } /* ftdi_USB_UIRT_startup */
1518
1519 /* Startup for the HE-TIRA1 device, which requires hardwired
1520 * baudrate (38400 gets mapped to 100000) */
1521 static int ftdi_HE_TIRA1_startup (struct usb_serial *serial)
1522 { /* ftdi_HE_TIRA1_startup */
1523 struct ftdi_private *priv;
1524 int err;
1525
1526 dbg("%s",__FUNCTION__);
1527 err = ftdi_FT232BM_startup(serial);
1528 if (err){
1529 return (err);
1530 }
1531
1532 priv = usb_get_serial_port_data(serial->port[0]);
1533 priv->flags |= ASYNC_SPD_CUST;
1534 priv->custom_divisor = 240;
1535 priv->force_baud = B38400;
1536 priv->force_rtscts = 1;
1537
1538 return (0);
1539 } /* ftdi_HE_TIRA1_startup */
1540
1541
1542 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
1543 * it is called when the usb device is disconnected
1544 *
1545 * usbserial:usb_serial_disconnect
1546 * calls __serial_close for each open of the port
1547 * shutdown is called then (ie ftdi_shutdown)
1548 */
1549
1550
1551 static void ftdi_shutdown (struct usb_serial *serial)
1552 { /* ftdi_shutdown */
1553
1554 struct usb_serial_port *port = serial->port[0];
1555 struct ftdi_private *priv = usb_get_serial_port_data(port);
1556
1557 dbg("%s", __FUNCTION__);
1558
1559 remove_sysfs_attrs(serial);
1560
1561 /* all open ports are closed at this point
1562 * (by usbserial.c:__serial_close, which calls ftdi_close)
1563 */
1564
1565 if (priv) {
1566 usb_set_serial_port_data(port, NULL);
1567 kfree(priv);
1568 }
1569 } /* ftdi_shutdown */
1570
1571
1572 static int ftdi_open (struct usb_serial_port *port, struct file *filp)
1573 { /* ftdi_open */
1574 struct termios tmp_termios;
1575 struct usb_device *dev = port->serial->dev;
1576 struct ftdi_private *priv = usb_get_serial_port_data(port);
1577 unsigned long flags;
1578
1579 int result = 0;
1580 char buf[1]; /* Needed for the usb_control_msg I think */
1581
1582 dbg("%s", __FUNCTION__);
1583
1584
1585 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
1586
1587 /* No error checking for this (will get errors later anyway) */
1588 /* See ftdi_sio.h for description of what is reset */
1589 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1590 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1591 FTDI_SIO_RESET_SIO,
1592 priv->interface, buf, 0, WDR_TIMEOUT);
1593
1594 /* Termios defaults are set by usb_serial_init. We don't change
1595 port->tty->termios - this would loose speed settings, etc.
1596 This is same behaviour as serial.c/rs_open() - Kuba */
1597
1598 /* ftdi_set_termios will send usb control messages */
1599 ftdi_set_termios(port, &tmp_termios);
1600
1601 /* FIXME: Flow control might be enabled, so it should be checked -
1602 we have no control of defaults! */
1603 /* Turn on RTS and DTR since we are not flow controlling by default */
1604 if (set_dtr(port, HIGH) < 0) {
1605 err("%s Error from DTR HIGH urb", __FUNCTION__);
1606 }
1607 if (set_rts(port, HIGH) < 0){
1608 err("%s Error from RTS HIGH urb", __FUNCTION__);
1609 }
1610
1611 /* Not throttled */
1612 spin_lock_irqsave(&priv->rx_lock, flags);
1613 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
1614 spin_unlock_irqrestore(&priv->rx_lock, flags);
1615
1616 /* Start reading from the device */
1617 usb_fill_bulk_urb(port->read_urb, dev,
1618 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
1619 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
1620 ftdi_read_bulk_callback, port);
1621 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
1622 if (result)
1623 err("%s - failed submitting read urb, error %d", __FUNCTION__, result);
1624
1625
1626 return result;
1627 } /* ftdi_open */
1628
1629
1630
1631 /*
1632 * usbserial:__serial_close only calls ftdi_close if the point is open
1633 *
1634 * This only gets called when it is the last close
1635 *
1636 *
1637 */
1638
1639 static void ftdi_close (struct usb_serial_port *port, struct file *filp)
1640 { /* ftdi_close */
1641 unsigned int c_cflag = port->tty->termios->c_cflag;
1642 struct ftdi_private *priv = usb_get_serial_port_data(port);
1643 char buf[1];
1644
1645 dbg("%s", __FUNCTION__);
1646
1647 if (c_cflag & HUPCL){
1648 /* Disable flow control */
1649 if (usb_control_msg(port->serial->dev,
1650 usb_sndctrlpipe(port->serial->dev, 0),
1651 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1652 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1653 0, priv->interface, buf, 0,
1654 WDR_TIMEOUT) < 0) {
1655 err("error from flowcontrol urb");
1656 }
1657
1658 /* drop DTR */
1659 if (set_dtr(port, LOW) < 0){
1660 err("Error from DTR LOW urb");
1661 }
1662 /* drop RTS */
1663 if (set_rts(port, LOW) < 0) {
1664 err("Error from RTS LOW urb");
1665 }
1666 } /* Note change no line if hupcl is off */
1667
1668 /* shutdown our bulk read */
1669 if (port->read_urb)
1670 usb_kill_urb(port->read_urb);
1671 } /* ftdi_close */
1672
1673
1674
1675 /* The SIO requires the first byte to have:
1676 * B0 1
1677 * B1 0
1678 * B2..7 length of message excluding byte 0
1679 *
1680 * The new devices do not require this byte
1681 */
1682 static int ftdi_write (struct usb_serial_port *port,
1683 const unsigned char *buf, int count)
1684 { /* ftdi_write */
1685 struct ftdi_private *priv = usb_get_serial_port_data(port);
1686 struct urb *urb;
1687 unsigned char *buffer;
1688 int data_offset ; /* will be 1 for the SIO and 0 otherwise */
1689 int status;
1690 int transfer_size;
1691
1692 dbg("%s port %d, %d bytes", __FUNCTION__, port->number, count);
1693
1694 if (count == 0) {
1695 dbg("write request of 0 bytes");
1696 return 0;
1697 }
1698
1699 data_offset = priv->write_offset;
1700 dbg("data_offset set to %d",data_offset);
1701
1702 /* Determine total transfer size */
1703 transfer_size = count;
1704 if (data_offset > 0) {
1705 /* Original sio needs control bytes too... */
1706 transfer_size += (data_offset *
1707 ((count + (PKTSZ - 1 - data_offset)) /
1708 (PKTSZ - data_offset)));
1709 }
1710
1711 buffer = kmalloc (transfer_size, GFP_ATOMIC);
1712 if (!buffer) {
1713 err("%s ran out of kernel memory for urb ...", __FUNCTION__);
1714 return -ENOMEM;
1715 }
1716
1717 urb = usb_alloc_urb(0, GFP_ATOMIC);
1718 if (!urb) {
1719 err("%s - no more free urbs", __FUNCTION__);
1720 kfree (buffer);
1721 return -ENOMEM;
1722 }
1723
1724 /* Copy data */
1725 if (data_offset > 0) {
1726 /* Original sio requires control byte at start of each packet. */
1727 int user_pktsz = PKTSZ - data_offset;
1728 int todo = count;
1729 unsigned char *first_byte = buffer;
1730 const unsigned char *current_position = buf;
1731
1732 while (todo > 0) {
1733 if (user_pktsz > todo) {
1734 user_pktsz = todo;
1735 }
1736 /* Write the control byte at the front of the packet*/
1737 *first_byte = 1 | ((user_pktsz) << 2);
1738 /* Copy data for packet */
1739 memcpy (first_byte + data_offset,
1740 current_position, user_pktsz);
1741 first_byte += user_pktsz + data_offset;
1742 current_position += user_pktsz;
1743 todo -= user_pktsz;
1744 }
1745 } else {
1746 /* No control byte required. */
1747 /* Copy in the data to send */
1748 memcpy (buffer, buf, count);
1749 }
1750
1751 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, transfer_size, buffer);
1752
1753 /* fill the buffer and send it */
1754 usb_fill_bulk_urb(urb, port->serial->dev,
1755 usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress),
1756 buffer, transfer_size,
1757 ftdi_write_bulk_callback, port);
1758
1759 status = usb_submit_urb(urb, GFP_ATOMIC);
1760 if (status) {
1761 err("%s - failed submitting write urb, error %d", __FUNCTION__, status);
1762 count = status;
1763 kfree (buffer);
1764 }
1765
1766 /* we are done with this urb, so let the host driver
1767 * really free it when it is finished with it */
1768 usb_free_urb (urb);
1769
1770 dbg("%s write returning: %d", __FUNCTION__, count);
1771 return count;
1772 } /* ftdi_write */
1773
1774
1775 /* This function may get called when the device is closed */
1776
1777 static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
1778 {
1779 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
1780
1781 /* free up the transfer buffer, as usb_free_urb() does not do this */
1782 kfree (urb->transfer_buffer);
1783
1784 dbg("%s - port %d", __FUNCTION__, port->number);
1785
1786 if (urb->status) {
1787 dbg("nonzero write bulk status received: %d", urb->status);
1788 return;
1789 }
1790
1791 schedule_work(&port->work);
1792 } /* ftdi_write_bulk_callback */
1793
1794
1795 static int ftdi_write_room( struct usb_serial_port *port )
1796 {
1797 dbg("%s - port %d", __FUNCTION__, port->number);
1798
1799 /*
1800 * We really can take anything the user throws at us
1801 * but let's pick a nice big number to tell the tty
1802 * layer that we have lots of free space
1803 */
1804 return 2048;
1805 } /* ftdi_write_room */
1806
1807
1808 static int ftdi_chars_in_buffer (struct usb_serial_port *port)
1809 { /* ftdi_chars_in_buffer */
1810 dbg("%s - port %d", __FUNCTION__, port->number);
1811
1812 /*
1813 * We can't really account for how much data we
1814 * have sent out, but hasn't made it through to the
1815 * device, so just tell the tty layer that everything
1816 * is flushed.
1817 */
1818 return 0;
1819 } /* ftdi_chars_in_buffer */
1820
1821
1822
1823 static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
1824 { /* ftdi_read_bulk_callback */
1825 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
1826 struct tty_struct *tty;
1827 struct ftdi_private *priv;
1828
1829 if (urb->number_of_packets > 0) {
1830 err("%s transfer_buffer_length %d actual_length %d number of packets %d",__FUNCTION__,
1831 urb->transfer_buffer_length, urb->actual_length, urb->number_of_packets );
1832 err("%s transfer_flags %x ", __FUNCTION__,urb->transfer_flags );
1833 }
1834
1835 dbg("%s - port %d", __FUNCTION__, port->number);
1836
1837 if (port->open_count <= 0)
1838 return;
1839
1840 tty = port->tty;
1841 if (!tty) {
1842 dbg("%s - bad tty pointer - exiting",__FUNCTION__);
1843 return;
1844 }
1845
1846 priv = usb_get_serial_port_data(port);
1847 if (!priv) {
1848 dbg("%s - bad port private data pointer - exiting", __FUNCTION__);
1849 return;
1850 }
1851
1852 if (urb != port->read_urb) {
1853 err("%s - Not my urb!", __FUNCTION__);
1854 }
1855
1856 if (urb->status) {
1857 /* This will happen at close every time so it is a dbg not an err */
1858 dbg("(this is ok on close) nonzero read bulk status received: %d", urb->status);
1859 return;
1860 }
1861
1862 /* If throttled, delay receive processing until unthrottled. */
1863 spin_lock(&priv->rx_lock);
1864 if (priv->rx_flags & THROTTLED) {
1865 dbg("Deferring read urb processing until unthrottled");
1866 priv->rx_flags |= ACTUALLY_THROTTLED;
1867 spin_unlock(&priv->rx_lock);
1868 return;
1869 }
1870 spin_unlock(&priv->rx_lock);
1871
1872 ftdi_process_read(port);
1873
1874 } /* ftdi_read_bulk_callback */
1875
1876
1877 static void ftdi_process_read (struct usb_serial_port *port)
1878 { /* ftdi_process_read */
1879 struct urb *urb;
1880 struct tty_struct *tty;
1881 struct ftdi_private *priv;
1882 char error_flag;
1883 unsigned char *data;
1884
1885 int i;
1886 int result;
1887 int need_flip;
1888 int packet_offset;
1889
1890 dbg("%s - port %d", __FUNCTION__, port->number);
1891
1892 if (port->open_count <= 0)
1893 return;
1894
1895 tty = port->tty;
1896 if (!tty) {
1897 dbg("%s - bad tty pointer - exiting",__FUNCTION__);
1898 return;
1899 }
1900
1901 priv = usb_get_serial_port_data(port);
1902 if (!priv) {
1903 dbg("%s - bad port private data pointer - exiting", __FUNCTION__);
1904 return;
1905 }
1906
1907 urb = port->read_urb;
1908 if (!urb) {
1909 dbg("%s - bad read_urb pointer - exiting", __FUNCTION__);
1910 return;
1911 }
1912
1913 data = urb->transfer_buffer;
1914
1915 /* The first two bytes of every read packet are status */
1916 if (urb->actual_length > 2) {
1917 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
1918 } else {
1919 dbg("Status only: %03oo %03oo",data[0],data[1]);
1920 }
1921
1922
1923 /* TO DO -- check for hung up line and handle appropriately: */
1924 /* send hangup */
1925 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */
1926 /* if CD is dropped and the line is not CLOCAL then we should hangup */
1927
1928 need_flip = 0;
1929 for (packet_offset=0; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
1930 /* Compare new line status to the old one, signal if different */
1931 if (priv != NULL) {
1932 char new_status = data[packet_offset+0] & FTDI_STATUS_B0_MASK;
1933 if (new_status != priv->prev_status) {
1934 priv->diff_status |= new_status ^ priv->prev_status;
1935 wake_up_interruptible(&priv->delta_msr_wait);
1936 priv->prev_status = new_status;
1937 }
1938 }
1939
1940 /* Handle errors and break */
1941 error_flag = TTY_NORMAL;
1942 /* Although the device uses a bitmask and hence can have multiple */
1943 /* errors on a packet - the order here sets the priority the */
1944 /* error is returned to the tty layer */
1945
1946 if ( data[packet_offset+1] & FTDI_RS_OE ) {
1947 error_flag = TTY_OVERRUN;
1948 dbg("OVERRRUN error");
1949 }
1950 if ( data[packet_offset+1] & FTDI_RS_BI ) {
1951 error_flag = TTY_BREAK;
1952 dbg("BREAK received");
1953 }
1954 if ( data[packet_offset+1] & FTDI_RS_PE ) {
1955 error_flag = TTY_PARITY;
1956 dbg("PARITY error");
1957 }
1958 if ( data[packet_offset+1] & FTDI_RS_FE ) {
1959 error_flag = TTY_FRAME;
1960 dbg("FRAMING error");
1961 }
1962 if (urb->actual_length > packet_offset + 2) {
1963 for (i = 2; (i < PKTSZ) && ((i+packet_offset) < urb->actual_length); ++i) {
1964 /* have to make sure we don't overflow the buffer
1965 with tty_insert_flip_char's */
1966 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1967 tty_flip_buffer_push(tty);
1968 }
1969 /* Note that the error flag is duplicated for
1970 every character received since we don't know
1971 which character it applied to */
1972 tty_insert_flip_char(tty, data[packet_offset+i], error_flag);
1973 }
1974 need_flip = 1;
1975 }
1976
1977 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW
1978 /* if a parity error is detected you get status packets forever
1979 until a character is sent without a parity error.
1980 This doesn't work well since the application receives a never
1981 ending stream of bad data - even though new data hasn't been sent.
1982 Therefore I (bill) have taken this out.
1983 However - this might make sense for framing errors and so on
1984 so I am leaving the code in for now.
1985 */
1986 else {
1987 if (error_flag != TTY_NORMAL){
1988 dbg("error_flag is not normal");
1989 /* In this case it is just status - if that is an error send a bad character */
1990 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
1991 tty_flip_buffer_push(tty);
1992 }
1993 tty_insert_flip_char(tty, 0xff, error_flag);
1994 need_flip = 1;
1995 }
1996 }
1997 #endif
1998 } /* "for(packet_offset=0..." */
1999
2000 /* Low latency */
2001 if (need_flip) {
2002 tty_flip_buffer_push(tty);
2003 }
2004
2005 /* if the port is closed stop trying to read */
2006 if (port->open_count > 0){
2007 /* Continue trying to always read */
2008 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
2009 usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress),
2010 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
2011 ftdi_read_bulk_callback, port);
2012
2013 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
2014 if (result)
2015 err("%s - failed resubmitting read urb, error %d", __FUNCTION__, result);
2016 }
2017
2018 return;
2019 } /* ftdi_process_read */
2020
2021
2022 static void ftdi_break_ctl( struct usb_serial_port *port, int break_state )
2023 {
2024 struct ftdi_private *priv = usb_get_serial_port_data(port);
2025 __u16 urb_value = 0;
2026 char buf[1];
2027
2028 /* break_state = -1 to turn on break, and 0 to turn off break */
2029 /* see drivers/char/tty_io.c to see it used */
2030 /* last_set_data_urb_value NEVER has the break bit set in it */
2031
2032 if (break_state) {
2033 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2034 } else {
2035 urb_value = priv->last_set_data_urb_value;
2036 }
2037
2038
2039 if (usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
2040 FTDI_SIO_SET_DATA_REQUEST,
2041 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2042 urb_value , priv->interface,
2043 buf, 0, WDR_TIMEOUT) < 0) {
2044 err("%s FAILED to enable/disable break state (state was %d)", __FUNCTION__,break_state);
2045 }
2046
2047 dbg("%s break state is %d - urb is %d", __FUNCTION__,break_state, urb_value);
2048
2049 }
2050
2051
2052 /* old_termios contains the original termios settings and tty->termios contains
2053 * the new setting to be used
2054 * WARNING: set_termios calls this with old_termios in kernel space
2055 */
2056
2057 static void ftdi_set_termios (struct usb_serial_port *port, struct termios *old_termios)
2058 { /* ftdi_termios */
2059 struct usb_device *dev = port->serial->dev;
2060 unsigned int cflag = port->tty->termios->c_cflag;
2061 struct ftdi_private *priv = usb_get_serial_port_data(port);
2062 __u16 urb_value; /* will hold the new flags */
2063 char buf[1]; /* Perhaps I should dynamically alloc this? */
2064
2065 // Added for xon/xoff support
2066 unsigned int iflag = port->tty->termios->c_iflag;
2067 unsigned char vstop;
2068 unsigned char vstart;
2069
2070 dbg("%s", __FUNCTION__);
2071
2072 /* Force baud rate if this device requires it, unless it is set to B0. */
2073 if (priv->force_baud && ((port->tty->termios->c_cflag & CBAUD) != B0)) {
2074 dbg("%s: forcing baud rate for this device", __FUNCTION__);
2075 port->tty->termios->c_cflag &= ~CBAUD;
2076 port->tty->termios->c_cflag |= priv->force_baud;
2077 }
2078
2079 /* Force RTS-CTS if this device requires it. */
2080 if (priv->force_rtscts) {
2081 dbg("%s: forcing rtscts for this device", __FUNCTION__);
2082 port->tty->termios->c_cflag |= CRTSCTS;
2083 }
2084
2085 cflag = port->tty->termios->c_cflag;
2086
2087 /* FIXME -For this cut I don't care if the line is really changing or
2088 not - so just do the change regardless - should be able to
2089 compare old_termios and tty->termios */
2090 /* NOTE These routines can get interrupted by
2091 ftdi_sio_read_bulk_callback - need to examine what this
2092 means - don't see any problems yet */
2093
2094 /* Set number of data bits, parity, stop bits */
2095
2096 urb_value = 0;
2097 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2098 FTDI_SIO_SET_DATA_STOP_BITS_1);
2099 urb_value |= (cflag & PARENB ?
2100 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD :
2101 FTDI_SIO_SET_DATA_PARITY_EVEN) :
2102 FTDI_SIO_SET_DATA_PARITY_NONE);
2103 if (cflag & CSIZE) {
2104 switch (cflag & CSIZE) {
2105 case CS5: urb_value |= 5; dbg("Setting CS5"); break;
2106 case CS6: urb_value |= 6; dbg("Setting CS6"); break;
2107 case CS7: urb_value |= 7; dbg("Setting CS7"); break;
2108 case CS8: urb_value |= 8; dbg("Setting CS8"); break;
2109 default:
2110 err("CSIZE was set but not CS5-CS8");
2111 }
2112 }
2113
2114 /* This is needed by the break command since it uses the same command - but is
2115 * or'ed with this value */
2116 priv->last_set_data_urb_value = urb_value;
2117
2118 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2119 FTDI_SIO_SET_DATA_REQUEST,
2120 FTDI_SIO_SET_DATA_REQUEST_TYPE,
2121 urb_value , priv->interface,
2122 buf, 0, 100) < 0) {
2123 err("%s FAILED to set databits/stopbits/parity", __FUNCTION__);
2124 }
2125
2126 /* Now do the baudrate */
2127 if ((cflag & CBAUD) == B0 ) {
2128 /* Disable flow control */
2129 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2130 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2131 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2132 0, priv->interface,
2133 buf, 0, WDR_TIMEOUT) < 0) {
2134 err("%s error from disable flowcontrol urb", __FUNCTION__);
2135 }
2136 /* Drop RTS and DTR */
2137 if (set_dtr(port, LOW) < 0){
2138 err("%s Error from DTR LOW urb", __FUNCTION__);
2139 }
2140 if (set_rts(port, LOW) < 0){
2141 err("%s Error from RTS LOW urb", __FUNCTION__);
2142 }
2143
2144 } else {
2145 /* set the baudrate determined before */
2146 if (change_speed(port)) {
2147 err("%s urb failed to set baurdrate", __FUNCTION__);
2148 }
2149 /* Ensure RTS and DTR are raised */
2150 else if (set_dtr(port, HIGH) < 0){
2151 err("%s Error from DTR HIGH urb", __FUNCTION__);
2152 }
2153 else if (set_rts(port, HIGH) < 0){
2154 err("%s Error from RTS HIGH urb", __FUNCTION__);
2155 }
2156 }
2157
2158 /* Set flow control */
2159 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2160 if (cflag & CRTSCTS) {
2161 dbg("%s Setting to CRTSCTS flow control", __FUNCTION__);
2162 if (usb_control_msg(dev,
2163 usb_sndctrlpipe(dev, 0),
2164 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2165 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2166 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2167 buf, 0, WDR_TIMEOUT) < 0) {
2168 err("urb failed to set to rts/cts flow control");
2169 }
2170
2171 } else {
2172 /*
2173 * Xon/Xoff code
2174 *
2175 * Check the IXOFF status in the iflag component of the termios structure
2176 * if IXOFF is not set, the pre-xon/xoff code is executed.
2177 */
2178 if (iflag & IXOFF) {
2179 dbg("%s request to enable xonxoff iflag=%04x",__FUNCTION__,iflag);
2180 // Try to enable the XON/XOFF on the ftdi_sio
2181 // Set the vstart and vstop -- could have been done up above where
2182 // a lot of other dereferencing is done but that would be very
2183 // inefficient as vstart and vstop are not always needed
2184 vstart=port->tty->termios->c_cc[VSTART];
2185 vstop=port->tty->termios->c_cc[VSTOP];
2186 urb_value=(vstop << 8) | (vstart);
2187
2188 if (usb_control_msg(dev,
2189 usb_sndctrlpipe(dev, 0),
2190 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2191 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2192 urb_value , (FTDI_SIO_XON_XOFF_HS
2193 | priv->interface),
2194 buf, 0, WDR_TIMEOUT) < 0) {
2195 err("urb failed to set to xon/xoff flow control");
2196 }
2197 } else {
2198 /* else clause to only run if cfag ! CRTSCTS and iflag ! XOFF */
2199 /* CHECKME Assuming XON/XOFF handled by tty stack - not by device */
2200 dbg("%s Turning off hardware flow control", __FUNCTION__);
2201 if (usb_control_msg(dev,
2202 usb_sndctrlpipe(dev, 0),
2203 FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2204 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2205 0, priv->interface,
2206 buf, 0, WDR_TIMEOUT) < 0) {
2207 err("urb failed to clear flow control");
2208 }
2209 }
2210
2211 }
2212 return;
2213 } /* ftdi_termios */
2214
2215
2216 static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file)
2217 {
2218 struct ftdi_private *priv = usb_get_serial_port_data(port);
2219 unsigned char buf[2];
2220 int ret;
2221
2222 dbg("%s TIOCMGET", __FUNCTION__);
2223 switch (priv->chip_type) {
2224 case SIO:
2225 /* Request the status from the device */
2226 if ((ret = usb_control_msg(port->serial->dev,
2227 usb_rcvctrlpipe(port->serial->dev, 0),
2228 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2229 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2230 0, 0,
2231 buf, 1, WDR_TIMEOUT)) < 0 ) {
2232 err("%s Could not get modem status of device - err: %d", __FUNCTION__,
2233 ret);
2234 return(ret);
2235 }
2236 break;
2237 case FT8U232AM:
2238 case FT232BM:
2239 case FT2232C:
2240 /* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same
2241 format as the data returned from the in point */
2242 if ((ret = usb_control_msg(port->serial->dev,
2243 usb_rcvctrlpipe(port->serial->dev, 0),
2244 FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2245 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2246 0, priv->interface,
2247 buf, 2, WDR_TIMEOUT)) < 0 ) {
2248 err("%s Could not get modem status of device - err: %d", __FUNCTION__,
2249 ret);
2250 return(ret);
2251 }
2252 break;
2253 default:
2254 return -EFAULT;
2255 break;
2256 }
2257
2258 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) |
2259 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) |
2260 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) |
2261 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) |
2262 priv->last_dtr_rts;
2263 }
2264
2265 static int ftdi_tiocmset(struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear)
2266 {
2267 int ret;
2268
2269 dbg("%s TIOCMSET", __FUNCTION__);
2270 if (set & TIOCM_DTR){
2271 if ((ret = set_dtr(port, HIGH)) < 0) {
2272 err("Urb to set DTR failed");
2273 return(ret);
2274 }
2275 }
2276 if (set & TIOCM_RTS) {
2277 if ((ret = set_rts(port, HIGH)) < 0){
2278 err("Urb to set RTS failed");
2279 return(ret);
2280 }
2281 }
2282
2283 if (clear & TIOCM_DTR){
2284 if ((ret = set_dtr(port, LOW)) < 0){
2285 err("Urb to unset DTR failed");
2286 return(ret);
2287 }
2288 }
2289 if (clear & TIOCM_RTS) {
2290 if ((ret = set_rts(port, LOW)) < 0){
2291 err("Urb to unset RTS failed");
2292 return(ret);
2293 }
2294 }
2295 return(0);
2296 }
2297
2298
2299 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
2300 {
2301 struct ftdi_private *priv = usb_get_serial_port_data(port);
2302
2303 int ret, mask;
2304
2305 dbg("%s cmd 0x%04x", __FUNCTION__, cmd);
2306
2307 /* Based on code from acm.c and others */
2308 switch (cmd) {
2309
2310 case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
2311 dbg("%s TIOCMBIS", __FUNCTION__);
2312 if (get_user(mask, (unsigned long __user *) arg))
2313 return -EFAULT;
2314 if (mask & TIOCM_DTR){
2315 if ((ret = set_dtr(port, HIGH)) < 0) {
2316 err("Urb to set DTR failed");
2317 return(ret);
2318 }
2319 }
2320 if (mask & TIOCM_RTS) {
2321 if ((ret = set_rts(port, HIGH)) < 0){
2322 err("Urb to set RTS failed");
2323 return(ret);
2324 }
2325 }
2326 return(0);
2327 break;
2328
2329 case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
2330 dbg("%s TIOCMBIC", __FUNCTION__);
2331 if (get_user(mask, (unsigned long __user *) arg))
2332 return -EFAULT;
2333 if (mask & TIOCM_DTR){
2334 if ((ret = set_dtr(port, LOW)) < 0){
2335 err("Urb to unset DTR failed");
2336 return(ret);
2337 }
2338 }
2339 if (mask & TIOCM_RTS) {
2340 if ((ret = set_rts(port, LOW)) < 0){
2341 err("Urb to unset RTS failed");
2342 return(ret);
2343 }
2344 }
2345 return(0);
2346 break;
2347
2348 /*
2349 * I had originally implemented TCSET{A,S}{,F,W} and
2350 * TCGET{A,S} here separately, however when testing I
2351 * found that the higher layers actually do the termios
2352 * conversions themselves and pass the call onto
2353 * ftdi_sio_set_termios.
2354 *
2355 */
2356
2357 case TIOCGSERIAL: /* gets serial port data */
2358 return get_serial_info(port, (struct serial_struct __user *) arg);
2359
2360 case TIOCSSERIAL: /* sets serial port data */
2361 return set_serial_info(port, (struct serial_struct __user *) arg);
2362
2363 /*
2364 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
2365 * - mask passed in arg for lines of interest
2366 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
2367 * Caller should use TIOCGICOUNT to see which one it was.
2368 *
2369 * This code is borrowed from linux/drivers/char/serial.c
2370 */
2371 case TIOCMIWAIT:
2372 while (priv != NULL) {
2373 interruptible_sleep_on(&priv->delta_msr_wait);
2374 /* see if a signal did it */
2375 if (signal_pending(current))
2376 return -ERESTARTSYS;
2377 else {
2378 char diff = priv->diff_status;
2379
2380 if (diff == 0) {
2381 return -EIO; /* no change => error */
2382 }
2383
2384 /* Consume all events */
2385 priv->diff_status = 0;
2386
2387 /* Return 0 if caller wanted to know about these bits */
2388 if ( ((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) ||
2389 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) ||
2390 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) ||
2391 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS)) ) {
2392 return 0;
2393 }
2394 /*
2395 * Otherwise caller can't care less about what happened,
2396 * and so we continue to wait for more events.
2397 */
2398 }
2399 }
2400 return(0);
2401 break;
2402 default:
2403 break;
2404
2405 }
2406
2407
2408 /* This is not necessarily an error - turns out the higher layers will do
2409 * some ioctls itself (see comment above)
2410 */
2411 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __FUNCTION__, cmd);
2412
2413 return(-ENOIOCTLCMD);
2414 } /* ftdi_ioctl */
2415
2416
2417 static void ftdi_throttle (struct usb_serial_port *port)
2418 {
2419 struct ftdi_private *priv = usb_get_serial_port_data(port);
2420 unsigned long flags;
2421
2422 dbg("%s - port %d", __FUNCTION__, port->number);
2423
2424 spin_lock_irqsave(&priv->rx_lock, flags);
2425 priv->rx_flags |= THROTTLED;
2426 spin_unlock_irqrestore(&priv->rx_lock, flags);
2427 }
2428
2429
2430 static void ftdi_unthrottle (struct usb_serial_port *port)
2431 {
2432 struct ftdi_private *priv = usb_get_serial_port_data(port);
2433 int actually_throttled;
2434 unsigned long flags;
2435
2436 dbg("%s - port %d", __FUNCTION__, port->number);
2437
2438 spin_lock_irqsave(&priv->rx_lock, flags);
2439 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
2440 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
2441 spin_unlock_irqrestore(&priv->rx_lock, flags);
2442
2443 if (actually_throttled)
2444 ftdi_process_read(port);
2445 }
2446
2447 static int __init ftdi_init (void)
2448 {
2449 int retval;
2450
2451 dbg("%s", __FUNCTION__);
2452 retval = usb_serial_register(&ftdi_SIO_device);
2453 if (retval)
2454 goto failed_SIO_register;
2455 retval = usb_serial_register(&ftdi_8U232AM_device);
2456 if (retval)
2457 goto failed_8U232AM_register;
2458 retval = usb_serial_register(&ftdi_FT232BM_device);
2459 if (retval)
2460 goto failed_FT232BM_register;
2461 retval = usb_serial_register(&ftdi_FT2232C_device);
2462 if (retval)
2463 goto failed_FT2232C_register;
2464 retval = usb_serial_register(&ftdi_USB_UIRT_device);
2465 if (retval)
2466 goto failed_USB_UIRT_register;
2467 retval = usb_serial_register(&ftdi_HE_TIRA1_device);
2468 if (retval)
2469 goto failed_HE_TIRA1_register;
2470 retval = usb_register(&ftdi_driver);
2471 if (retval)
2472 goto failed_usb_register;
2473
2474 info(DRIVER_VERSION ":" DRIVER_DESC);
2475 return 0;
2476 failed_usb_register:
2477 usb_serial_deregister(&ftdi_HE_TIRA1_device);
2478 failed_HE_TIRA1_register:
2479 usb_serial_deregister(&ftdi_USB_UIRT_device);
2480 failed_USB_UIRT_register:
2481 usb_serial_deregister(&ftdi_FT2232C_device);
2482 failed_FT2232C_register:
2483 usb_serial_deregister(&ftdi_FT232BM_device);
2484 failed_FT232BM_register:
2485 usb_serial_deregister(&ftdi_8U232AM_device);
2486 failed_8U232AM_register:
2487 usb_serial_deregister(&ftdi_SIO_device);
2488 failed_SIO_register:
2489 return retval;
2490 }
2491
2492
2493 static void __exit ftdi_exit (void)
2494 {
2495
2496 dbg("%s", __FUNCTION__);
2497
2498 usb_deregister (&ftdi_driver);
2499 usb_serial_deregister (&ftdi_HE_TIRA1_device);
2500 usb_serial_deregister (&ftdi_USB_UIRT_device);
2501 usb_serial_deregister (&ftdi_FT2232C_device);
2502 usb_serial_deregister (&ftdi_FT232BM_device);
2503 usb_serial_deregister (&ftdi_8U232AM_device);
2504 usb_serial_deregister (&ftdi_SIO_device);
2505
2506 }
2507
2508
2509 module_init(ftdi_init);
2510 module_exit(ftdi_exit);
2511
2512 MODULE_AUTHOR( DRIVER_AUTHOR );
2513 MODULE_DESCRIPTION( DRIVER_DESC );
2514 MODULE_LICENSE("GPL");
2515
2516 module_param(debug, bool, S_IRUGO | S_IWUSR);
2517 MODULE_PARM_DESC(debug, "Debug enabled or not");
2518
Verdex Pro support