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 G�hring'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 2519