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 "v1.4.2" 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, FTDI_ELV_UM100_PID, 0, 0x3ff) }, 368 { USB_DEVICE_VER(FTDI_VID, INSIDE_ACCESSO, 0, 0x3ff) }, 369 { USB_DEVICE_VER(INTREPID_VID, INTREPID_VALUECAN_PID, 0, 0x3ff) }, 370 { USB_DEVICE_VER(INTREPID_VID, INTREPID_NEOVI_PID, 0, 0x3ff) }, 371 { USB_DEVICE_VER(FALCOM_VID, FALCOM_TWIST_PID, 0, 0x3ff) }, 372 { USB_DEVICE_VER(FTDI_VID, FTDI_SUUNTO_SPORTS_PID, 0, 0x3ff) }, 373 { USB_DEVICE_VER(FTDI_VID, FTDI_RM_CANVIEW_PID, 0, 0x3ff) }, 374 { USB_DEVICE_VER(BANDB_VID, BANDB_USOTL4_PID, 0, 0x3ff) }, 375 { USB_DEVICE_VER(BANDB_VID, BANDB_USTL4_PID, 0, 0x3ff) }, 376 { USB_DEVICE_VER(BANDB_VID, BANDB_USO9ML2_PID, 0, 0x3ff) }, 377 { USB_DEVICE_VER(FTDI_VID, EVER_ECO_PRO_CDS, 0, 0x3ff) }, 378 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_0_PID, 0, 0x3ff) }, 379 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID, 0, 0x3ff) }, 380 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID, 0, 0x3ff) }, 381 { } /* Terminating entry */ 382 }; 383 384 385 static struct usb_device_id id_table_FT232BM [] = { 386 { USB_DEVICE_VER(FTDI_VID, FTDI_IRTRANS_PID, 0x400, 0xffff) }, 387 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_PID, 0x400, 0xffff) }, 388 { USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_ALT_PID, 0x400, 0xffff) }, 389 { USB_DEVICE_VER(FTDI_VID, FTDI_RELAIS_PID, 0x400, 0xffff) }, 390 { USB_DEVICE_VER(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID, 0x400, 0xffff) }, 391 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_632_PID, 0x400, 0xffff) }, 392 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_634_PID, 0x400, 0xffff) }, 393 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_547_PID, 0x400, 0xffff) }, 394 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_633_PID, 0x400, 0xffff) }, 395 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_631_PID, 0x400, 0xffff) }, 396 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_635_PID, 0x400, 0xffff) }, 397 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_640_PID, 0x400, 0xffff) }, 398 { USB_DEVICE_VER(FTDI_VID, FTDI_XF_642_PID, 0x400, 0xffff) }, 399 { USB_DEVICE_VER(FTDI_VID, FTDI_VNHCPCUSB_D_PID, 0x400, 0xffff) }, 400 { USB_DEVICE_VER(FTDI_VID, FTDI_DSS20_PID, 0x400, 0xffff) }, 401 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_0_PID, 0x400, 0xffff) }, 402 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_1_PID, 0x400, 0xffff) }, 403 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_2_PID, 0x400, 0xffff) }, 404 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_3_PID, 0x400, 0xffff) }, 405 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_4_PID, 0x400, 0xffff) }, 406 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_5_PID, 0x400, 0xffff) }, 407 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_6_PID, 0x400, 0xffff) }, 408 { USB_DEVICE_VER(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID, 0x400, 0xffff) }, 409 { USB_DEVICE_VER(FTDI_VID, FTDI_PIEGROUP_PID, 0x400, 0xffff) }, 410 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2101_PID, 0x400, 0xffff) }, 411 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2102_PID, 0x400, 0xffff) }, 412 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2103_PID, 0x400, 0xffff) }, 413 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2104_PID, 0x400, 0xffff) }, 414 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_1_PID, 0x400, 0xffff) }, 415 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2201_2_PID, 0x400, 0xffff) }, 416 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_1_PID, 0x400, 0xffff) }, 417 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2202_2_PID, 0x400, 0xffff) }, 418 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_1_PID, 0x400, 0xffff) }, 419 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2203_2_PID, 0x400, 0xffff) }, 420 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_1_PID, 0x400, 0xffff) }, 421 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_2_PID, 0x400, 0xffff) }, 422 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_3_PID, 0x400, 0xffff) }, 423 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2401_4_PID, 0x400, 0xffff) }, 424 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_1_PID, 0x400, 0xffff) }, 425 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_2_PID, 0x400, 0xffff) }, 426 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_3_PID, 0x400, 0xffff) }, 427 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2402_4_PID, 0x400, 0xffff) }, 428 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_1_PID, 0x400, 0xffff) }, 429 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_2_PID, 0x400, 0xffff) }, 430 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_3_PID, 0x400, 0xffff) }, 431 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2403_4_PID, 0x400, 0xffff) }, 432 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_1_PID, 0x400, 0xffff) }, 433 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_2_PID, 0x400, 0xffff) }, 434 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_3_PID, 0x400, 0xffff) }, 435 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_4_PID, 0x400, 0xffff) }, 436 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_5_PID, 0x400, 0xffff) }, 437 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_6_PID, 0x400, 0xffff) }, 438 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_7_PID, 0x400, 0xffff) }, 439 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2801_8_PID, 0x400, 0xffff) }, 440 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_1_PID, 0x400, 0xffff) }, 441 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_2_PID, 0x400, 0xffff) }, 442 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_3_PID, 0x400, 0xffff) }, 443 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_4_PID, 0x400, 0xffff) }, 444 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_5_PID, 0x400, 0xffff) }, 445 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_6_PID, 0x400, 0xffff) }, 446 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_7_PID, 0x400, 0xffff) }, 447 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2802_8_PID, 0x400, 0xffff) }, 448 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_1_PID, 0x400, 0xffff) }, 449 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_2_PID, 0x400, 0xffff) }, 450 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_3_PID, 0x400, 0xffff) }, 451 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_4_PID, 0x400, 0xffff) }, 452 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_5_PID, 0x400, 0xffff) }, 453 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_6_PID, 0x400, 0xffff) }, 454 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_7_PID, 0x400, 0xffff) }, 455 { USB_DEVICE_VER(SEALEVEL_VID, SEALEVEL_2803_8_PID, 0x400, 0xffff) }, 456 { USB_DEVICE_VER(IDTECH_VID, IDTECH_IDT1221U_PID, 0x400, 0xffff) }, 457 { USB_DEVICE_VER(OCT_VID, OCT_US101_PID, 0x400, 0xffff) }, 458 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_1, 0x400, 0xffff) }, 459 { USB_DEVICE_VER(FTDI_VID, PROTEGO_R2X0, 0x400, 0xffff) }, 460 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_3, 0x400, 0xffff) }, 461 { USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_4, 0x400, 0xffff) }, 462 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E808_PID, 0x400, 0xffff) }, 463 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E809_PID, 0x400, 0xffff) }, 464 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80A_PID, 0x400, 0xffff) }, 465 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80B_PID, 0x400, 0xffff) }, 466 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80C_PID, 0x400, 0xffff) }, 467 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80D_PID, 0x400, 0xffff) }, 468 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80E_PID, 0x400, 0xffff) }, 469 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80F_PID, 0x400, 0xffff) }, 470 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E888_PID, 0x400, 0xffff) }, 471 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E889_PID, 0x400, 0xffff) }, 472 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88A_PID, 0x400, 0xffff) }, 473 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88B_PID, 0x400, 0xffff) }, 474 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88C_PID, 0x400, 0xffff) }, 475 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88D_PID, 0x400, 0xffff) }, 476 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88E_PID, 0x400, 0xffff) }, 477 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88F_PID, 0x400, 0xffff) }, 478 { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UO100_PID, 0x400, 0xffff) }, 479 { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UM100_PID, 0x400, 0xffff) }, 480 { USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) }, 481 { USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) }, 482 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) }, 483 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_1_PID, 0x400, 0xffff) }, 484 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_2_PID, 0x400, 0xffff) }, 485 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) }, 486 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) }, 487 { USB_DEVICE_VER(FTDI_VID, INSIDE_ACCESSO, 0x400, 0xffff) }, 488 { USB_DEVICE_VER(INTREPID_VID, INTREPID_VALUECAN_PID, 0x400, 0xffff) }, 489 { USB_DEVICE_VER(INTREPID_VID, INTREPID_NEOVI_PID, 0x400, 0xffff) }, 490 { USB_DEVICE_VER(FALCOM_VID, FALCOM_TWIST_PID, 0x400, 0xffff) }, 491 { USB_DEVICE_VER(FTDI_VID, FTDI_SUUNTO_SPORTS_PID, 0x400, 0xffff) }, 492 { USB_DEVICE_VER(FTDI_VID, FTDI_RM_CANVIEW_PID, 0x400, 0xffff) }, 493 { USB_DEVICE_VER(BANDB_VID, BANDB_USOTL4_PID, 0x400, 0xffff) }, 494 { USB_DEVICE_VER(BANDB_VID, BANDB_USTL4_PID, 0x400, 0xffff) }, 495 { USB_DEVICE_VER(BANDB_VID, BANDB_USO9ML2_PID, 0x400, 0xffff) }, 496 { USB_DEVICE_VER(FTDI_VID, EVER_ECO_PRO_CDS, 0x400, 0xffff) }, 497 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_0_PID, 0x400, 0xffff) }, 498 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID, 0x400, 0xffff) }, 499 { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID, 0x400, 0xffff) }, 500 { USB_DEVICE_VER(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID, 0x400, 0xffff) }, 501 { } /* Terminating entry */ 502 }; 503 504 505 static struct usb_device_id id_table_USB_UIRT [] = { 506 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID) }, 507 { } /* Terminating entry */ 508 }; 509 510 511 static struct usb_device_id id_table_HE_TIRA1 [] = { 512 { USB_DEVICE_VER(FTDI_VID, FTDI_HE_TIRA1_PID, 0x400, 0xffff) }, 513 { } /* Terminating entry */ 514 }; 515 516 517 static struct usb_device_id id_table_FT2232C[] = { 518 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) }, 519 { } /* Terminating entry */ 520 }; 521 522 523 static struct usb_device_id id_table_combined [] = { 524 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, 525 { USB_DEVICE(FTDI_VID, FTDI_SIO_PID) }, 526 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) }, 527 { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) }, 528 { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) }, 529 { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) }, 530 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) }, 531 { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) }, 532 { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) }, 533 { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) }, 534 { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) }, 535 { USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) }, 536 { USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) }, 537 { USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) }, 538 { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) }, 539 { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) }, 540 { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) }, 541 { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) }, 542 { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) }, 543 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_0_PID, 0x400, 0xffff) }, 544 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_1_PID, 0x400, 0xffff) }, 545 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_2_PID, 0x400, 0xffff) }, 546 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_3_PID, 0x400, 0xffff) }, 547 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_4_PID, 0x400, 0xffff) }, 548 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_5_PID, 0x400, 0xffff) }, 549 { USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_6_PID, 0x400, 0xffff) }, 550 { USB_DEVICE_VER(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID, 0x400, 0xffff) }, 551 { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) }, 552 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) }, 553 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) }, 554 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) }, 555 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) }, 556 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) }, 557 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) }, 558 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) }, 559 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) }, 560 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) }, 561 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) }, 562 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) }, 563 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) }, 564 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) }, 565 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) }, 566 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) }, 567 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) }, 568 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) }, 569 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) }, 570 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) }, 571 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) }, 572 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) }, 573 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) }, 574 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) }, 575 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) }, 576 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) }, 577 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) }, 578 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) }, 579 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) }, 580 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) }, 581 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) }, 582 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) }, 583 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) }, 584 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) }, 585 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) }, 586 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) }, 587 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) }, 588 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) }, 589 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) }, 590 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) }, 591 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) }, 592 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) }, 593 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) }, 594 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) }, 595 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) }, 596 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) }, 597 { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) }, 598 { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) }, 599 { USB_DEVICE(OCT_VID, OCT_US101_PID) }, 600 { USB_DEVICE_VER(FTDI_VID, FTDI_HE_TIRA1_PID, 0x400, 0xffff) }, 601 { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID) }, 602 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) }, 603 { USB_DEVICE(FTDI_VID, PROTEGO_R2X0) }, 604 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) }, 605 { USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) }, 606 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E808_PID, 0x400, 0xffff) }, 607 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E809_PID, 0x400, 0xffff) }, 608 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80A_PID, 0x400, 0xffff) }, 609 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80B_PID, 0x400, 0xffff) }, 610 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80C_PID, 0x400, 0xffff) }, 611 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80D_PID, 0x400, 0xffff) }, 612 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80E_PID, 0x400, 0xffff) }, 613 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80F_PID, 0x400, 0xffff) }, 614 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E888_PID, 0x400, 0xffff) }, 615 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E889_PID, 0x400, 0xffff) }, 616 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88A_PID, 0x400, 0xffff) }, 617 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88B_PID, 0x400, 0xffff) }, 618 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88C_PID, 0x400, 0xffff) }, 619 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88D_PID, 0x400, 0xffff) }, 620 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88E_PID, 0x400, 0xffff) }, 621 { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88F_PID, 0x400, 0xffff) }, 622 { USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) }, 623 { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) }, 624 { USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) }, 625 { USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) }, 626 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) }, 627 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_1_PID, 0x400, 0xffff) }, 628 { USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_2_PID, 0x400, 0xffff) }, 629 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) }, 630 { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) }, 631 { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) }, 632 { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) }, 633 { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) }, 634 { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) }, 635 { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) }, 636 { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, 637 { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, 638 { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, 639 { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, 640 { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) }, 641 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_0_PID) }, 642 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) }, 643 { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, 644 { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, 645 { USB_DEVICE_VER(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID, 0x400, 0xffff) }, 646 { } /* Terminating entry */ 647 }; 648 649 MODULE_DEVICE_TABLE (usb, id_table_combined); 650 651 static struct usb_driver ftdi_driver = { 652 .name = "ftdi_sio", 653 .probe = usb_serial_probe, 654 .disconnect = usb_serial_disconnect, 655 .id_table = id_table_combined, 656 }; 657 658 static char *ftdi_chip_name[] = { 659 [SIO] = "SIO", /* the serial part of FT8U100AX */ 660 [FT8U232AM] = "FT8U232AM", 661 [FT232BM] = "FT232BM", 662 [FT2232C] = "FT2232C", 663 }; 664 665 666 /* Constants for read urb and write urb */ 667 #define BUFSZ 512 668 #define PKTSZ 64 669 670 /* rx_flags */ 671 #define THROTTLED 0x01 672 #define ACTUALLY_THROTTLED 0x02 673 674 struct ftdi_private { 675 ftdi_chip_type_t chip_type; 676 /* type of the device, either SIO or FT8U232AM */ 677 int baud_base; /* baud base clock for divisor setting */ 678 int custom_divisor; /* custom_divisor kludge, this is for baud_base (different from what goes to the chip!) */ 679 __u16 last_set_data_urb_value ; 680 /* the last data state set - needed for doing a break */ 681 int write_offset; /* This is the offset in the usb data block to write the serial data - 682 * it is different between devices 683 */ 684 int flags; /* some ASYNC_xxxx flags are supported */ 685 unsigned long last_dtr_rts; /* saved modem control outputs */ 686 wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ 687 char prev_status, diff_status; /* Used for TIOCMIWAIT */ 688 __u8 rx_flags; /* receive state flags (throttling) */ 689 spinlock_t rx_lock; /* spinlock for receive state */ 690 struct work_struct rx_work; 691 int rx_processed; 692 693 __u16 interface; /* FT2232C port interface (0 for FT232/245) */ 694 695 int force_baud; /* if non-zero, force the baud rate to this value */ 696 int force_rtscts; /* if non-zero, force RTS-CTS to always be enabled */ 697 }; 698 699 /* Used for TIOCMIWAIT */ 700 #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) 701 #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) 702 /* End TIOCMIWAIT */ 703 704 #define FTDI_IMPL_ASYNC_FLAGS = ( ASYNC_SPD_HI | ASYNC_SPD_VHI \ 705 ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP ) 706 707 /* function prototypes for a FTDI serial converter */ 708 static int ftdi_SIO_startup (struct usb_serial *serial); 709 static int ftdi_8U232AM_startup (struct usb_serial *serial); 710 static int ftdi_FT232BM_startup (struct usb_serial *serial); 711 static int ftdi_FT2232C_startup (struct usb_serial *serial); 712 static int ftdi_USB_UIRT_startup (struct usb_serial *serial); 713 static int ftdi_HE_TIRA1_startup (struct usb_serial *serial); 714 static void ftdi_shutdown (struct usb_serial *serial); 715 static int ftdi_open (struct usb_serial_port *port, struct file *filp); 716 static void ftdi_close (struct usb_serial_port *port, struct file *filp); 717 static int ftdi_write (struct usb_serial_port *port, const unsigned char *buf, int count); 718 static int ftdi_write_room (struct usb_serial_port *port); 719 static int ftdi_chars_in_buffer (struct usb_serial_port *port); 720 static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs); 721 static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs); 722 static void ftdi_process_read (void *param); 723 static void ftdi_set_termios (struct usb_serial_port *port, struct termios * old); 724 static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file); 725 static int ftdi_tiocmset (struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear); 726 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg); 727 static void ftdi_break_ctl (struct usb_serial_port *port, int break_state ); 728 static void ftdi_throttle (struct usb_serial_port *port); 729 static void ftdi_unthrottle (struct usb_serial_port *port); 730 731 static unsigned short int ftdi_232am_baud_base_to_divisor (int baud, int base); 732 static unsigned short int ftdi_232am_baud_to_divisor (int baud); 733 static __u32 ftdi_232bm_baud_base_to_divisor (int baud, int base); 734 static __u32 ftdi_232bm_baud_to_divisor (int baud); 735 736 static struct usb_serial_device_type ftdi_SIO_device = { 737 .owner = THIS_MODULE, 738 .name = "FTDI SIO", 739 .id_table = id_table_sio, 740 .num_interrupt_in = 0, 741 .num_bulk_in = 1, 742 .num_bulk_out = 1, 743 .num_ports = 1, 744 .open = ftdi_open, 745 .close = ftdi_close, 746 .throttle = ftdi_throttle, 747 .unthrottle = ftdi_unthrottle, 748 .write = ftdi_write, 749 .write_room = ftdi_write_room, 750 .chars_in_buffer = ftdi_chars_in_buffer, 751 .read_bulk_callback = ftdi_read_bulk_callback, 752 .write_bulk_callback = ftdi_write_bulk_callback, 753 .tiocmget = ftdi_tiocmget, 754 .tiocmset = ftdi_tiocmset, 755 .ioctl = ftdi_ioctl, 756 .set_termios = ftdi_set_termios, 757 .break_ctl = ftdi_break_ctl, 758 .attach = ftdi_SIO_startup, 759 .shutdown = ftdi_shutdown, 760 }; 761 762 static struct usb_serial_device_type ftdi_8U232AM_device = { 763 .owner = THIS_MODULE, 764 .name = "FTDI 8U232AM Compatible", 765 .id_table = id_table_8U232AM, 766 .num_interrupt_in = 0, 767 .num_bulk_in = 1, 768 .num_bulk_out = 1, 769 .num_ports = 1, 770 .open = ftdi_open, 771 .close = ftdi_close, 772 .throttle = ftdi_throttle, 773 .unthrottle = ftdi_unthrottle, 774 .write = ftdi_write, 775 .write_room = ftdi_write_room, 776 .chars_in_buffer = ftdi_chars_in_buffer, 777 .read_bulk_callback = ftdi_read_bulk_callback, 778 .write_bulk_callback = ftdi_write_bulk_callback, 779 .tiocmget = ftdi_tiocmget, 780 .tiocmset = ftdi_tiocmset, 781 .ioctl = ftdi_ioctl, 782 .set_termios = ftdi_set_termios, 783 .break_ctl = ftdi_break_ctl, 784 .attach = ftdi_8U232AM_startup, 785 .shutdown = ftdi_shutdown, 786 }; 787 788 static struct usb_serial_device_type ftdi_FT232BM_device = { 789 .owner = THIS_MODULE, 790 .name = "FTDI FT232BM Compatible", 791 .id_table = id_table_FT232BM, 792 .num_interrupt_in = 0, 793 .num_bulk_in = 1, 794 .num_bulk_out = 1, 795 .num_ports = 1, 796 .open = ftdi_open, 797 .close = ftdi_close, 798 .throttle = ftdi_throttle, 799 .unthrottle = ftdi_unthrottle, 800 .write = ftdi_write, 801 .write_room = ftdi_write_room, 802 .chars_in_buffer = ftdi_chars_in_buffer, 803 .read_bulk_callback = ftdi_read_bulk_callback, 804 .write_bulk_callback = ftdi_write_bulk_callback, 805 .tiocmget = ftdi_tiocmget, 806 .tiocmset = ftdi_tiocmset, 807 .ioctl = ftdi_ioctl, 808 .set_termios = ftdi_set_termios, 809 .break_ctl = ftdi_break_ctl, 810 .attach = ftdi_FT232BM_startup, 811 .shutdown = ftdi_shutdown, 812 }; 813 814 static struct usb_serial_device_type ftdi_FT2232C_device = { 815 .owner = THIS_MODULE, 816 .name = "FTDI FT2232C Compatible", 817 .id_table = id_table_FT2232C, 818 .num_interrupt_in = 0, 819 .num_bulk_in = 1, 820 .num_bulk_out = 1, 821 .num_ports = 1, 822 .open = ftdi_open, 823 .close = ftdi_close, 824 .throttle = ftdi_throttle, 825 .unthrottle = ftdi_unthrottle, 826 .write = ftdi_write, 827 .write_room = ftdi_write_room, 828 .chars_in_buffer = ftdi_chars_in_buffer, 829 .read_bulk_callback = ftdi_read_bulk_callback, 830 .write_bulk_callback = ftdi_write_bulk_callback, 831 .tiocmget = ftdi_tiocmget, 832 .tiocmset = ftdi_tiocmset, 833 .ioctl = ftdi_ioctl, 834 .set_termios = ftdi_set_termios, 835 .break_ctl = ftdi_break_ctl, 836 .attach = ftdi_FT2232C_startup, 837 .shutdown = ftdi_shutdown, 838 }; 839 840 static struct usb_serial_device_type ftdi_USB_UIRT_device = { 841 .owner = THIS_MODULE, 842 .name = "USB-UIRT Infrared Tranceiver", 843 .id_table = id_table_USB_UIRT, 844 .num_interrupt_in = 0, 845 .num_bulk_in = 1, 846 .num_bulk_out = 1, 847 .num_ports = 1, 848 .open = ftdi_open, 849 .close = ftdi_close, 850 .throttle = ftdi_throttle, 851 .unthrottle = ftdi_unthrottle, 852 .write = ftdi_write, 853 .write_room = ftdi_write_room, 854 .chars_in_buffer = ftdi_chars_in_buffer, 855 .read_bulk_callback = ftdi_read_bulk_callback, 856 .write_bulk_callback = ftdi_write_bulk_callback, 857 .tiocmget = ftdi_tiocmget, 858 .tiocmset = ftdi_tiocmset, 859 .ioctl = ftdi_ioctl, 860 .set_termios = ftdi_set_termios, 861 .break_ctl = ftdi_break_ctl, 862 .attach = ftdi_USB_UIRT_startup, 863 .shutdown = ftdi_shutdown, 864 }; 865 866 /* The TIRA1 is based on a FT232BM which requires a fixed baud rate of 100000 867 * and which requires RTS-CTS to be enabled. */ 868 static struct usb_serial_device_type ftdi_HE_TIRA1_device = { 869 .owner = THIS_MODULE, 870 .name = "Home-Electronics TIRA-1 IR Transceiver", 871 .id_table = id_table_HE_TIRA1, 872 .num_interrupt_in = 0, 873 .num_bulk_in = 1, 874 .num_bulk_out = 1, 875 .num_ports = 1, 876 .open = ftdi_open, 877 .close = ftdi_close, 878 .throttle = ftdi_throttle, 879 .unthrottle = ftdi_unthrottle, 880 .write = ftdi_write, 881 .write_room = ftdi_write_room, 882 .chars_in_buffer = ftdi_chars_in_buffer, 883 .read_bulk_callback = ftdi_read_bulk_callback, 884 .write_bulk_callback = ftdi_write_bulk_callback, 885 .tiocmget = ftdi_tiocmget, 886 .tiocmset = ftdi_tiocmset, 887 .ioctl = ftdi_ioctl, 888 .set_termios = ftdi_set_termios, 889 .break_ctl = ftdi_break_ctl, 890 .attach = ftdi_HE_TIRA1_startup, 891 .shutdown = ftdi_shutdown, 892 }; 893 894 895 896 #define WDR_TIMEOUT 5000 /* default urb timeout */ 897 898 /* High and low are for DTR, RTS etc etc */ 899 #define HIGH 1 900 #define LOW 0 901 902 /* 903 * *************************************************************************** 904 * Utlity functions 905 * *************************************************************************** 906 */ 907 908 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base) 909 { 910 unsigned short int divisor; 911 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left 912 if ((divisor3 & 0x7) == 7) divisor3 ++; // round x.7/8 up to x+1 913 divisor = divisor3 >> 3; 914 divisor3 &= 0x7; 915 if (divisor3 == 1) divisor |= 0xc000; else // 0.125 916 if (divisor3 >= 4) divisor |= 0x4000; else // 0.5 917 if (divisor3 != 0) divisor |= 0x8000; // 0.25 918 if (divisor == 1) divisor = 0; /* special case for maximum baud rate */ 919 return divisor; 920 } 921 922 static unsigned short int ftdi_232am_baud_to_divisor(int baud) 923 { 924 return(ftdi_232am_baud_base_to_divisor(baud, 48000000)); 925 } 926 927 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base) 928 { 929 static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; 930 __u32 divisor; 931 int divisor3 = base / 2 / baud; // divisor shifted 3 bits to the left 932 divisor = divisor3 >> 3; 933 divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; 934 /* Deal with special cases for highest baud rates. */ 935 if (divisor == 1) divisor = 0; else // 1.0 936 if (divisor == 0x4001) divisor = 1; // 1.5 937 return divisor; 938 } 939 940 static __u32 ftdi_232bm_baud_to_divisor(int baud) 941 { 942 return(ftdi_232bm_baud_base_to_divisor(baud, 48000000)); 943 } 944 945 static int set_rts(struct usb_serial_port *port, int high_or_low) 946 { 947 struct ftdi_private *priv = usb_get_serial_port_data(port); 948 char *buf; 949 unsigned ftdi_high_or_low; 950 int rv; 951 952 buf = kmalloc(1, GFP_NOIO); 953 if (!buf) 954 return -ENOMEM; 955 956 if (high_or_low) { 957 ftdi_high_or_low = FTDI_SIO_SET_RTS_HIGH; 958 priv->last_dtr_rts |= TIOCM_RTS; 959 } else { 960 ftdi_high_or_low = FTDI_SIO_SET_RTS_LOW; 961 priv->last_dtr_rts &= ~TIOCM_RTS; 962 } 963 rv = usb_control_msg(port->serial->dev, 964 usb_sndctrlpipe(port->serial->dev, 0), 965 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 966 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 967 ftdi_high_or_low, priv->interface, 968 buf, 0, WDR_TIMEOUT); 969 970 kfree(buf); 971 return rv; 972 } 973 974 975 static int set_dtr(struct usb_serial_port *port, int high_or_low) 976 { 977 struct ftdi_private *priv = usb_get_serial_port_data(port); 978 char *buf; 979 unsigned ftdi_high_or_low; 980 int rv; 981 982 buf = kmalloc(1, GFP_NOIO); 983 if (!buf) 984 return -ENOMEM; 985 986 if (high_or_low) { 987 ftdi_high_or_low = FTDI_SIO_SET_DTR_HIGH; 988 priv->last_dtr_rts |= TIOCM_DTR; 989 } else { 990 ftdi_high_or_low = FTDI_SIO_SET_DTR_LOW; 991 priv->last_dtr_rts &= ~TIOCM_DTR; 992 } 993 rv = usb_control_msg(port->serial->dev, 994 usb_sndctrlpipe(port->serial->dev, 0), 995 FTDI_SIO_SET_MODEM_CTRL_REQUEST, 996 FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, 997 ftdi_high_or_low, priv->interface, 998 buf, 0, WDR_TIMEOUT); 999 1000 kfree(buf); 1001 return rv; 1002 } 1003 1004 1005 static __u32 get_ftdi_divisor(struct usb_serial_port * port); 1006 1007 1008 static int change_speed(struct usb_serial_port *port) 1009 { 1010 struct ftdi_private *priv = usb_get_serial_port_data(port); 1011 char *buf; 1012 __u16 urb_value; 1013 __u16 urb_index; 1014 __u32 urb_index_value; 1015 int rv; 1016 1017 buf = kmalloc(1, GFP_NOIO); 1018 if (!buf) 1019 return -ENOMEM; 1020 1021 urb_index_value = get_ftdi_divisor(port); 1022 urb_value = (__u16)urb_index_value; 1023 urb_index = (__u16)(urb_index_value >> 16); 1024 if (priv->interface) { /* FT2232C */ 1025 urb_index = (__u16)((urb_index << 8) | priv->interface); 1026 } 1027 1028 rv = usb_control_msg(port->serial->dev, 1029 usb_sndctrlpipe(port->serial->dev, 0), 1030 FTDI_SIO_SET_BAUDRATE_REQUEST, 1031 FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, 1032 urb_value, urb_index, 1033 buf, 0, 100); 1034 1035 kfree(buf); 1036 return rv; 1037 } 1038 1039 1040 static __u32 get_ftdi_divisor(struct usb_serial_port * port) 1041 { /* get_ftdi_divisor */ 1042 struct ftdi_private *priv = usb_get_serial_port_data(port); 1043 __u32 div_value = 0; 1044 int div_okay = 1; 1045 int baud; 1046 1047 /* 1048 * The logic involved in setting the baudrate can be cleanly split in 3 steps. 1049 * Obtaining the actual baud rate is a little tricky since unix traditionally 1050 * somehow ignored the possibility to set non-standard baud rates. 1051 * 1. Standard baud rates are set in tty->termios->c_cflag 1052 * 2. If these are not enough, you can set any speed using alt_speed as follows: 1053 * - set tty->termios->c_cflag speed to B38400 1054 * - set your real speed in tty->alt_speed; it gets ignored when 1055 * alt_speed==0, (or) 1056 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows: 1057 * flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP], this just 1058 * sets alt_speed to (HI: 57600, VHI: 115200, SHI: 230400, WARP: 460800) 1059 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate 1060 * 3. You can also set baud rate by setting custom divisor as follows 1061 * - set tty->termios->c_cflag speed to B38400 1062 * - call TIOCSSERIAL ioctl with (struct serial_struct) set as follows: 1063 * o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST 1064 * o custom_divisor set to baud_base / your_new_baudrate 1065 * ** Step 3 is done courtesy of code borrowed from serial.c - I should really 1066 * spend some time and separate+move this common code to serial.c, it is 1067 * replicated in nearly every serial driver you see. 1068 */ 1069 1070 /* 1. Get the baud rate from the tty settings, this observes alt_speed hack */ 1071 1072 baud = tty_get_baud_rate(port->tty); 1073 dbg("%s - tty_get_baud_rate reports speed %d", __FUNCTION__, baud); 1074 1075 /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */ 1076 1077 if (baud == 38400 && 1078 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1079 (priv->custom_divisor)) { 1080 baud = priv->baud_base / priv->custom_divisor; 1081 dbg("%s - custom divisor %d sets baud rate to %d", __FUNCTION__, priv->custom_divisor, baud); 1082 } 1083 1084 /* 3. Convert baudrate to device-specific divisor */ 1085 1086 if (!baud) baud = 9600; 1087 switch(priv->chip_type) { 1088 case SIO: /* SIO chip */ 1089 switch(baud) { 1090 case 300: div_value = ftdi_sio_b300; break; 1091 case 600: div_value = ftdi_sio_b600; break; 1092 case 1200: div_value = ftdi_sio_b1200; break; 1093 case 2400: div_value = ftdi_sio_b2400; break; 1094 case 4800: div_value = ftdi_sio_b4800; break; 1095 case 9600: div_value = ftdi_sio_b9600; break; 1096 case 19200: div_value = ftdi_sio_b19200; break; 1097 case 38400: div_value = ftdi_sio_b38400; break; 1098 case 57600: div_value = ftdi_sio_b57600; break; 1099 case 115200: div_value = ftdi_sio_b115200; break; 1100 } /* baud */ 1101 if (div_value == 0) { 1102 dbg("%s - Baudrate (%d) requested is not supported", __FUNCTION__, baud); 1103 div_value = ftdi_sio_b9600; 1104 div_okay = 0; 1105 } 1106 break; 1107 case FT8U232AM: /* 8U232AM chip */ 1108 if (baud <= 3000000) { 1109 div_value = ftdi_232am_baud_to_divisor(baud); 1110 } else { 1111 dbg("%s - Baud rate too high!", __FUNCTION__); 1112 div_value = ftdi_232am_baud_to_divisor(9600); 1113 div_okay = 0; 1114 } 1115 break; 1116 case FT232BM: /* FT232BM chip */ 1117 case FT2232C: /* FT2232C chip */ 1118 if (baud <= 3000000) { 1119 div_value = ftdi_232bm_baud_to_divisor(baud); 1120 } else { 1121 dbg("%s - Baud rate too high!", __FUNCTION__); 1122 div_value = ftdi_232bm_baud_to_divisor(9600); 1123 div_okay = 0; 1124 } 1125 break; 1126 } /* priv->chip_type */ 1127 1128 if (div_okay) { 1129 dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", 1130 __FUNCTION__, baud, (unsigned long)div_value, 1131 ftdi_chip_name[priv->chip_type]); 1132 } 1133 1134 return(div_value); 1135 } 1136 1137 1138 static int get_serial_info(struct usb_serial_port * port, struct serial_struct __user * retinfo) 1139 { 1140 struct ftdi_private *priv = usb_get_serial_port_data(port); 1141 struct serial_struct tmp; 1142 1143 if (!retinfo) 1144 return -EFAULT; 1145 memset(&tmp, 0, sizeof(tmp)); 1146 tmp.flags = priv->flags; 1147 tmp.baud_base = priv->baud_base; 1148 tmp.custom_divisor = priv->custom_divisor; 1149 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 1150 return -EFAULT; 1151 return 0; 1152 } /* get_serial_info */ 1153 1154 1155 static int set_serial_info(struct usb_serial_port * port, struct serial_struct __user * newinfo) 1156 { /* set_serial_info */ 1157 struct ftdi_private *priv = usb_get_serial_port_data(port); 1158 struct serial_struct new_serial; 1159 struct ftdi_private old_priv; 1160 1161 if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) 1162 return -EFAULT; 1163 old_priv = * priv; 1164 1165 /* Do error checking and permission checking */ 1166 1167 if (!capable(CAP_SYS_ADMIN)) { 1168 if (((new_serial.flags & ~ASYNC_USR_MASK) != 1169 (priv->flags & ~ASYNC_USR_MASK))) 1170 return -EPERM; 1171 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | 1172 (new_serial.flags & ASYNC_USR_MASK)); 1173 priv->custom_divisor = new_serial.custom_divisor; 1174 goto check_and_exit; 1175 } 1176 1177 if ((new_serial.baud_base != priv->baud_base) && 1178 (new_serial.baud_base < 9600)) 1179 return -EINVAL; 1180 1181 /* Make the changes - these are privileged changes! */ 1182 1183 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | 1184 (new_serial.flags & ASYNC_FLAGS)); 1185 priv->custom_divisor = new_serial.custom_divisor; 1186 1187 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1188 1189 check_and_exit: 1190 if ((old_priv.flags & ASYNC_SPD_MASK) != 1191 (priv->flags & ASYNC_SPD_MASK)) { 1192 if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) 1193 port->tty->alt_speed = 57600; 1194 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) 1195 port->tty->alt_speed = 115200; 1196 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) 1197 port->tty->alt_speed = 230400; 1198 else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) 1199 port->tty->alt_speed = 460800; 1200 else 1201 port->tty->alt_speed = 0; 1202 } 1203 if (((old_priv.flags & ASYNC_SPD_MASK) != 1204 (priv->flags & ASYNC_SPD_MASK)) || 1205 (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && 1206 (old_priv.custom_divisor != priv->custom_divisor))) { 1207 change_speed(port); 1208 } 1209 1210 return (0); 1211 1212 } /* set_serial_info */ 1213 1214 1215 /* 1216 * *************************************************************************** 1217 * Sysfs Attribute 1218 * *************************************************************************** 1219 */ 1220 1221 static ssize_t show_latency_timer(struct device *dev, struct device_attribute *attr, char *buf) 1222 { 1223 struct usb_serial_port *port = to_usb_serial_port(dev); 1224 struct ftdi_private *priv = usb_get_serial_port_data(port); 1225 struct usb_device *udev; 1226 unsigned short latency = 0; 1227 int rv = 0; 1228 1229 udev = to_usb_device(dev); 1230 1231 dbg("%s",__FUNCTION__); 1232 1233 rv = usb_control_msg(udev, 1234 usb_rcvctrlpipe(udev, 0), 1235 FTDI_SIO_GET_LATENCY_TIMER_REQUEST, 1236 FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 1237 0, priv->interface, 1238 (char*) &latency, 1, WDR_TIMEOUT); 1239 1240 if (rv < 0) { 1241 dev_err(dev, "Unable to read latency timer: %i", rv); 1242 return -EIO; 1243 } 1244 return sprintf(buf, "%i\n", latency); 1245 } 1246 1247 /* Write a new value of the latency timer, in units of milliseconds. */ 1248 static ssize_t store_latency_timer(struct device *dev, struct device_attribute *attr, const char *valbuf, 1249 size_t count) 1250 { 1251 struct usb_serial_port *port = to_usb_serial_port(dev); 1252 struct ftdi_private *priv = usb_get_serial_port_data(port); 1253 struct usb_device *udev; 1254 char buf[1]; 1255 int v = simple_strtoul(valbuf, NULL, 10); 1256 int rv = 0; 1257 1258 udev = to_usb_device(dev); 1259 1260 dbg("%s: setting latency timer = %i", __FUNCTION__, v); 1261 1262 rv = usb_control_msg(udev, 1263 usb_sndctrlpipe(udev, 0), 1264 FTDI_SIO_SET_LATENCY_TIMER_REQUEST, 1265 FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, 1266 v, priv->interface, 1267 buf, 0, WDR_TIMEOUT); 1268 1269 if (rv < 0) { 1270 dev_err(dev, "Unable to write latency timer: %i", rv); 1271 return -EIO; 1272 } 1273 1274 return count; 1275 } 1276 1277 /* Write an event character directly to the FTDI register. The ASCII 1278 value is in the low 8 bits, with the enable bit in the 9th bit. */ 1279 static ssize_t store_event_char(struct device *dev, struct device_attribute *attr, const char *valbuf, 1280 size_t count) 1281 { 1282 struct usb_serial_port *port = to_usb_serial_port(dev); 1283 struct ftdi_private *priv = usb_get_serial_port_data(port); 1284 struct usb_device *udev; 1285 char buf[1]; 1286 int v = simple_strtoul(valbuf, NULL, 10); 1287 int rv = 0; 1288 1289 udev = to_usb_device(dev); 1290 1291 dbg("%s: setting event char = %i", __FUNCTION__, v); 1292 1293 rv = usb_control_msg(udev, 1294 usb_sndctrlpipe(udev, 0), 1295 FTDI_SIO_SET_EVENT_CHAR_REQUEST, 1296 FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, 1297 v, priv->interface, 1298 buf, 0, WDR_TIMEOUT); 1299 1300 if (rv < 0) { 1301 dbg("Unable to write event character: %i", rv); 1302 return -EIO; 1303 } 1304 1305 return count; 1306 } 1307 1308 static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, store_latency_timer); 1309 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); 1310 1311 static void create_sysfs_attrs(struct usb_serial *serial) 1312 { 1313 struct ftdi_private *priv; 1314 struct usb_device *udev; 1315 1316 dbg("%s",__FUNCTION__); 1317 1318 priv = usb_get_serial_port_data(serial->port[0]); 1319 udev = serial->dev; 1320 1321 /* XXX I've no idea if the original SIO supports the event_char 1322 * sysfs parameter, so I'm playing it safe. */ 1323 if (priv->chip_type != SIO) { 1324 dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); 1325 device_create_file(&udev->dev, &dev_attr_event_char); 1326 if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) { 1327 device_create_file(&udev->dev, &dev_attr_latency_timer); 1328 } 1329 } 1330 } 1331 1332 static void remove_sysfs_attrs(struct usb_serial *serial) 1333 { 1334 struct ftdi_private *priv; 1335 struct usb_device *udev; 1336 1337 dbg("%s",__FUNCTION__); 1338 1339 priv = usb_get_serial_port_data(serial->port[0]); 1340 udev = serial->dev; 1341 1342 /* XXX see create_sysfs_attrs */ 1343 if (priv->chip_type != SIO) { 1344 device_remove_file(&udev->dev, &dev_attr_event_char); 1345 if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) { 1346 device_remove_file(&udev->dev, &dev_attr_latency_timer); 1347 } 1348 } 1349 1350 } 1351 1352 /* 1353 * *************************************************************************** 1354 * FTDI driver specific functions 1355 * *************************************************************************** 1356 */ 1357 1358 /* Common startup subroutine */ 1359 /* Called from ftdi_SIO_startup, etc. */ 1360 static int ftdi_common_startup (struct usb_serial *serial) 1361 { 1362 struct usb_serial_port *port = serial->port[0]; 1363 struct ftdi_private *priv; 1364 1365 dbg("%s",__FUNCTION__); 1366 1367 priv = kmalloc(sizeof(struct ftdi_private), GFP_KERNEL); 1368 if (!priv){ 1369 err("%s- kmalloc(%Zd) failed.", __FUNCTION__, sizeof(struct ftdi_private)); 1370 return -ENOMEM; 1371 } 1372 memset(priv, 0, sizeof(*priv)); 1373 1374 spin_lock_init(&priv->rx_lock); 1375 init_waitqueue_head(&priv->delta_msr_wait); 1376 /* This will push the characters through immediately rather 1377 than queue a task to deliver them */ 1378 priv->flags = ASYNC_LOW_LATENCY; 1379 1380 /* Increase the size of read buffers */ 1381 kfree(port->bulk_in_buffer); 1382 port->bulk_in_buffer = kmalloc (BUFSZ, GFP_KERNEL); 1383 if (!port->bulk_in_buffer) { 1384 kfree (priv); 1385 return -ENOMEM; 1386 } 1387 if (port->read_urb) { 1388 port->read_urb->transfer_buffer = port->bulk_in_buffer; 1389 port->read_urb->transfer_buffer_length = BUFSZ; 1390 } 1391 1392 INIT_WORK(&priv->rx_work, ftdi_process_read, port); 1393 1394 /* Free port's existing write urb and transfer buffer. */ 1395 if (port->write_urb) { 1396 usb_free_urb (port->write_urb); 1397 port->write_urb = NULL; 1398 } 1399 kfree(port->bulk_out_buffer); 1400 port->bulk_out_buffer = NULL; 1401 1402 usb_set_serial_port_data(serial->port[0], priv); 1403 1404 return (0); 1405 } 1406 1407 1408 /* Startup for the SIO chip */ 1409 /* Called from usbserial:serial_probe */ 1410 static int ftdi_SIO_startup (struct usb_serial *serial) 1411 { 1412 struct ftdi_private *priv; 1413 int err; 1414 1415 dbg("%s",__FUNCTION__); 1416 1417 err = ftdi_common_startup(serial); 1418 if (err){ 1419 return (err); 1420 } 1421 1422 priv = usb_get_serial_port_data(serial->port[0]); 1423 priv->chip_type = SIO; 1424 priv->baud_base = 12000000 / 16; 1425 priv->write_offset = 1; 1426 1427 return (0); 1428 } 1429 1430 /* Startup for the 8U232AM chip */ 1431 /* Called from usbserial:serial_probe */ 1432 static int ftdi_8U232AM_startup (struct usb_serial *serial) 1433 { /* ftdi_8U232AM_startup */ 1434 struct ftdi_private *priv; 1435 int err; 1436 1437 dbg("%s",__FUNCTION__); 1438 err = ftdi_common_startup(serial); 1439 if (err){ 1440 return (err); 1441 } 1442 1443 priv = usb_get_serial_port_data(serial->port[0]); 1444 priv->chip_type = FT8U232AM; 1445 priv->baud_base = 48000000 / 2; /* Would be / 16, but FTDI supports 0.125, 0.25 and 0.5 divisor fractions! */ 1446 1447 create_sysfs_attrs(serial); 1448 1449 return (0); 1450 } /* ftdi_8U232AM_startup */ 1451 1452 /* Startup for the FT232BM chip */ 1453 /* Called from usbserial:serial_probe */ 1454 static int ftdi_FT232BM_startup (struct usb_serial *serial) 1455 { /* ftdi_FT232BM_startup */ 1456 struct ftdi_private *priv; 1457 int err; 1458 1459 dbg("%s",__FUNCTION__); 1460 err = ftdi_common_startup(serial); 1461 if (err){ 1462 return (err); 1463 } 1464 1465 priv = usb_get_serial_port_data(serial->port[0]); 1466 priv->chip_type = FT232BM; 1467 priv->baud_base = 48000000 / 2; /* Would be / 16, but FT232BM supports multiple of 0.125 divisor fractions! */ 1468 1469 create_sysfs_attrs(serial); 1470 1471 return (0); 1472 } /* ftdi_FT232BM_startup */ 1473 1474 /* Startup for the FT2232C chip */ 1475 /* Called from usbserial:serial_probe */ 1476 static int ftdi_FT2232C_startup (struct usb_serial *serial) 1477 { /* ftdi_FT2232C_startup */ 1478 struct ftdi_private *priv; 1479 int err; 1480 int inter; 1481 1482 dbg("%s",__FUNCTION__); 1483 err = ftdi_common_startup(serial); 1484 if (err){ 1485 return (err); 1486 } 1487 1488 priv = usb_get_serial_port_data(serial->port[0]); 1489 priv->chip_type = FT2232C; 1490 inter = serial->interface->altsetting->desc.bInterfaceNumber; 1491 1492 if (inter) { 1493 priv->interface = PIT_SIOB; 1494 } 1495 else { 1496 priv->interface = PIT_SIOA; 1497 } 1498 priv->baud_base = 48000000 / 2; /* Would be / 16, but FT2232C supports multiple of 0.125 divisor fractions! */ 1499 1500 create_sysfs_attrs(serial); 1501 1502 return (0); 1503 } /* ftdi_FT2232C_startup */ 1504 1505 /* Startup for the USB-UIRT device, which requires hardwired baudrate (38400 gets mapped to 312500) */ 1506 /* Called from usbserial:serial_probe */ 1507 static int ftdi_USB_UIRT_startup (struct usb_serial *serial) 1508 { /* ftdi_USB_UIRT_startup */ 1509 struct ftdi_private *priv; 1510 int err; 1511 1512 dbg("%s",__FUNCTION__); 1513 err = ftdi_8U232AM_startup(serial); 1514 if (err){ 1515 return (err); 1516 } 1517 1518 priv = usb_get_serial_port_data(serial->port[0]); 1519 priv->flags |= ASYNC_SPD_CUST; 1520 priv->custom_divisor = 77; 1521 priv->force_baud = B38400; 1522 1523 return (0); 1524 } /* ftdi_USB_UIRT_startup */ 1525 1526 /* Startup for the HE-TIRA1 device, which requires hardwired 1527 * baudrate (38400 gets mapped to 100000) */ 1528 static int ftdi_HE_TIRA1_startup (struct usb_serial *serial) 1529 { /* ftdi_HE_TIRA1_startup */ 1530 struct ftdi_private *priv; 1531 int err; 1532 1533 dbg("%s",__FUNCTION__); 1534 err = ftdi_FT232BM_startup(serial); 1535 if (err){ 1536 return (err); 1537 } 1538 1539 priv = usb_get_serial_port_data(serial->port[0]); 1540 priv->flags |= ASYNC_SPD_CUST; 1541 priv->custom_divisor = 240; 1542 priv->force_baud = B38400; 1543 priv->force_rtscts = 1; 1544 1545 return (0); 1546 } /* ftdi_HE_TIRA1_startup */ 1547 1548 1549 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect 1550 * it is called when the usb device is disconnected 1551 * 1552 * usbserial:usb_serial_disconnect 1553 * calls __serial_close for each open of the port 1554 * shutdown is called then (ie ftdi_shutdown) 1555 */ 1556 1557 1558 static void ftdi_shutdown (struct usb_serial *serial) 1559 { /* ftdi_shutdown */ 1560 1561 struct usb_serial_port *port = serial->port[0]; 1562 struct ftdi_private *priv = usb_get_serial_port_data(port); 1563 1564 dbg("%s", __FUNCTION__); 1565 1566 remove_sysfs_attrs(serial); 1567 1568 /* all open ports are closed at this point 1569 * (by usbserial.c:__serial_close, which calls ftdi_close) 1570 */ 1571 1572 if (priv) { 1573 usb_set_serial_port_data(port, NULL); 1574 kfree(priv); 1575 } 1576 } /* ftdi_shutdown */ 1577 1578 1579 static int ftdi_open (struct usb_serial_port *port, struct file *filp) 1580 { /* ftdi_open */ 1581 struct termios tmp_termios; 1582 struct usb_device *dev = port->serial->dev; 1583 struct ftdi_private *priv = usb_get_serial_port_data(port); 1584 unsigned long flags; 1585 1586 int result = 0; 1587 char buf[1]; /* Needed for the usb_control_msg I think */ 1588 1589 dbg("%s", __FUNCTION__); 1590 1591 1592 port->tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; 1593 1594 /* No error checking for this (will get errors later anyway) */ 1595 /* See ftdi_sio.h for description of what is reset */ 1596 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 1597 FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, 1598 FTDI_SIO_RESET_SIO, 1599 priv->interface, buf, 0, WDR_TIMEOUT); 1600 1601 /* Termios defaults are set by usb_serial_init. We don't change 1602 port->tty->termios - this would loose speed settings, etc. 1603 This is same behaviour as serial.c/rs_open() - Kuba */ 1604 1605 /* ftdi_set_termios will send usb control messages */ 1606 ftdi_set_termios(port, &tmp_termios); 1607 1608 /* FIXME: Flow control might be enabled, so it should be checked - 1609 we have no control of defaults! */ 1610 /* Turn on RTS and DTR since we are not flow controlling by default */ 1611 if (set_dtr(port, HIGH) < 0) { 1612 err("%s Error from DTR HIGH urb", __FUNCTION__); 1613 } 1614 if (set_rts(port, HIGH) < 0){ 1615 err("%s Error from RTS HIGH urb", __FUNCTION__); 1616 } 1617 1618 /* Not throttled */ 1619 spin_lock_irqsave(&priv->rx_lock, flags); 1620 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 1621 spin_unlock_irqrestore(&priv->rx_lock, flags); 1622 1623 /* Start reading from the device */ 1624 priv->rx_processed = 0; 1625 usb_fill_bulk_urb(port->read_urb, dev, 1626 usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), 1627 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, 1628 ftdi_read_bulk_callback, port); 1629 result = usb_submit_urb(port->read_urb, GFP_KERNEL); 1630 if (result) 1631 err("%s - failed submitting read urb, error %d", __FUNCTION__, result); 1632 1633 1634 return result; 1635 } /* ftdi_open */ 1636 1637 1638 1639 /* 1640 * usbserial:__serial_close only calls ftdi_close if the point is open 1641 * 1642 * This only gets called when it is the last close 1643 * 1644 * 1645 */ 1646 1647 static void ftdi_close (struct usb_serial_port *port, struct file *filp) 1648 { /* ftdi_close */ 1649 unsigned int c_cflag = port->tty->termios->c_cflag; 1650 struct ftdi_private *priv = usb_get_serial_port_data(port); 1651 char buf[1]; 1652 1653 dbg("%s", __FUNCTION__); 1654 1655 if (c_cflag & HUPCL){ 1656 /* Disable flow control */ 1657 if (usb_control_msg(port->serial->dev, 1658 usb_sndctrlpipe(port->serial->dev, 0), 1659 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 1660 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 1661 0, priv->interface, buf, 0, 1662 WDR_TIMEOUT) < 0) { 1663 err("error from flowcontrol urb"); 1664 } 1665 1666 /* drop DTR */ 1667 if (set_dtr(port, LOW) < 0){ 1668 err("Error from DTR LOW urb"); 1669 } 1670 /* drop RTS */ 1671 if (set_rts(port, LOW) < 0) { 1672 err("Error from RTS LOW urb"); 1673 } 1674 } /* Note change no line if hupcl is off */ 1675 1676 /* cancel any scheduled reading */ 1677 cancel_delayed_work(&priv->rx_work); 1678 flush_scheduled_work(); 1679 1680 /* shutdown our bulk read */ 1681 if (port->read_urb) 1682 usb_kill_urb(port->read_urb); 1683 } /* ftdi_close */ 1684 1685 1686 1687 /* The SIO requires the first byte to have: 1688 * B0 1 1689 * B1 0 1690 * B2..7 length of message excluding byte 0 1691 * 1692 * The new devices do not require this byte 1693 */ 1694 static int ftdi_write (struct usb_serial_port *port, 1695 const unsigned char *buf, int count) 1696 { /* ftdi_write */ 1697 struct ftdi_private *priv = usb_get_serial_port_data(port); 1698 struct urb *urb; 1699 unsigned char *buffer; 1700 int data_offset ; /* will be 1 for the SIO and 0 otherwise */ 1701 int status; 1702 int transfer_size; 1703 1704 dbg("%s port %d, %d bytes", __FUNCTION__, port->number, count); 1705 1706 if (count == 0) { 1707 dbg("write request of 0 bytes"); 1708 return 0; 1709 } 1710 1711 data_offset = priv->write_offset; 1712 dbg("data_offset set to %d",data_offset); 1713 1714 /* Determine total transfer size */ 1715 transfer_size = count; 1716 if (data_offset > 0) { 1717 /* Original sio needs control bytes too... */ 1718 transfer_size += (data_offset * 1719 ((count + (PKTSZ - 1 - data_offset)) / 1720 (PKTSZ - data_offset))); 1721 } 1722 1723 buffer = kmalloc (transfer_size, GFP_ATOMIC); 1724 if (!buffer) { 1725 err("%s ran out of kernel memory for urb ...", __FUNCTION__); 1726 return -ENOMEM; 1727 } 1728 1729 urb = usb_alloc_urb(0, GFP_ATOMIC); 1730 if (!urb) { 1731 err("%s - no more free urbs", __FUNCTION__); 1732 kfree (buffer); 1733 return -ENOMEM; 1734 } 1735 1736 /* Copy data */ 1737 if (data_offset > 0) { 1738 /* Original sio requires control byte at start of each packet. */ 1739 int user_pktsz = PKTSZ - data_offset; 1740 int todo = count; 1741 unsigned char *first_byte = buffer; 1742 const unsigned char *current_position = buf; 1743 1744 while (todo > 0) { 1745 if (user_pktsz > todo) { 1746 user_pktsz = todo; 1747 } 1748 /* Write the control byte at the front of the packet*/ 1749 *first_byte = 1 | ((user_pktsz) << 2); 1750 /* Copy data for packet */ 1751 memcpy (first_byte + data_offset, 1752 current_position, user_pktsz); 1753 first_byte += user_pktsz + data_offset; 1754 current_position += user_pktsz; 1755 todo -= user_pktsz; 1756 } 1757 } else { 1758 /* No control byte required. */ 1759 /* Copy in the data to send */ 1760 memcpy (buffer, buf, count); 1761 } 1762 1763 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, transfer_size, buffer); 1764 1765 /* fill the buffer and send it */ 1766 usb_fill_bulk_urb(urb, port->serial->dev, 1767 usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), 1768 buffer, transfer_size, 1769 ftdi_write_bulk_callback, port); 1770 1771 status = usb_submit_urb(urb, GFP_ATOMIC); 1772 if (status) { 1773 err("%s - failed submitting write urb, error %d", __FUNCTION__, status); 1774 count = status; 1775 kfree (buffer); 1776 } 1777 1778 /* we are done with this urb, so let the host driver 1779 * really free it when it is finished with it */ 1780 usb_free_urb (urb); 1781 1782 dbg("%s write returning: %d", __FUNCTION__, count); 1783 return count; 1784 } /* ftdi_write */ 1785 1786 1787 /* This function may get called when the device is closed */ 1788 1789 static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs) 1790 { 1791 struct usb_serial_port *port = (struct usb_serial_port *)urb->context; 1792 1793 /* free up the transfer buffer, as usb_free_urb() does not do this */ 1794 kfree (urb->transfer_buffer); 1795 1796 dbg("%s - port %d", __FUNCTION__, port->number); 1797 1798 if (urb->status) { 1799 dbg("nonzero write bulk status received: %d", urb->status); 1800 return; 1801 } 1802 1803 schedule_work(&port->work); 1804 } /* ftdi_write_bulk_callback */ 1805 1806 1807 static int ftdi_write_room( struct usb_serial_port *port ) 1808 { 1809 dbg("%s - port %d", __FUNCTION__, port->number); 1810 1811 /* 1812 * We really can take anything the user throws at us 1813 * but let's pick a nice big number to tell the tty 1814 * layer that we have lots of free space 1815 */ 1816 return 2048; 1817 } /* ftdi_write_room */ 1818 1819 1820 static int ftdi_chars_in_buffer (struct usb_serial_port *port) 1821 { /* ftdi_chars_in_buffer */ 1822 dbg("%s - port %d", __FUNCTION__, port->number); 1823 1824 /* 1825 * We can't really account for how much data we 1826 * have sent out, but hasn't made it through to the 1827 * device, so just tell the tty layer that everything 1828 * is flushed. 1829 */ 1830 return 0; 1831 } /* ftdi_chars_in_buffer */ 1832 1833 1834 1835 static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs) 1836 { /* ftdi_read_bulk_callback */ 1837 struct usb_serial_port *port = (struct usb_serial_port *)urb->context; 1838 struct tty_struct *tty; 1839 struct ftdi_private *priv; 1840 1841 if (urb->number_of_packets > 0) { 1842 err("%s transfer_buffer_length %d actual_length %d number of packets %d",__FUNCTION__, 1843 urb->transfer_buffer_length, urb->actual_length, urb->number_of_packets ); 1844 err("%s transfer_flags %x ", __FUNCTION__,urb->transfer_flags ); 1845 } 1846 1847 dbg("%s - port %d", __FUNCTION__, port->number); 1848 1849 if (port->open_count <= 0) 1850 return; 1851 1852 tty = port->tty; 1853 if (!tty) { 1854 dbg("%s - bad tty pointer - exiting",__FUNCTION__); 1855 return; 1856 } 1857 1858 priv = usb_get_serial_port_data(port); 1859 if (!priv) { 1860 dbg("%s - bad port private data pointer - exiting", __FUNCTION__); 1861 return; 1862 } 1863 1864 if (urb != port->read_urb) { 1865 err("%s - Not my urb!", __FUNCTION__); 1866 } 1867 1868 if (urb->status) { 1869 /* This will happen at close every time so it is a dbg not an err */ 1870 dbg("(this is ok on close) nonzero read bulk status received: %d", urb->status); 1871 return; 1872 } 1873 1874 ftdi_process_read(port); 1875 1876 } /* ftdi_read_bulk_callback */ 1877 1878 1879 static void ftdi_process_read (void *param) 1880 { /* ftdi_process_read */ 1881 struct usb_serial_port *port = (struct usb_serial_port*)param; 1882 struct urb *urb; 1883 struct tty_struct *tty; 1884 struct ftdi_private *priv; 1885 char error_flag; 1886 unsigned char *data; 1887 1888 int i; 1889 int result; 1890 int need_flip; 1891 int packet_offset; 1892 unsigned long flags; 1893 1894 dbg("%s - port %d", __FUNCTION__, port->number); 1895 1896 if (port->open_count <= 0) 1897 return; 1898 1899 tty = port->tty; 1900 if (!tty) { 1901 dbg("%s - bad tty pointer - exiting",__FUNCTION__); 1902 return; 1903 } 1904 1905 priv = usb_get_serial_port_data(port); 1906 if (!priv) { 1907 dbg("%s - bad port private data pointer - exiting", __FUNCTION__); 1908 return; 1909 } 1910 1911 urb = port->read_urb; 1912 if (!urb) { 1913 dbg("%s - bad read_urb pointer - exiting", __FUNCTION__); 1914 return; 1915 } 1916 1917 data = urb->transfer_buffer; 1918 1919 if (priv->rx_processed) { 1920 dbg("%s - already processed: %d bytes, %d remain", __FUNCTION__, 1921 priv->rx_processed, 1922 urb->actual_length - priv->rx_processed); 1923 } else { 1924 /* The first two bytes of every read packet are status */ 1925 if (urb->actual_length > 2) { 1926 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data); 1927 } else { 1928 dbg("Status only: %03oo %03oo",data[0],data[1]); 1929 } 1930 } 1931 1932 1933 /* TO DO -- check for hung up line and handle appropriately: */ 1934 /* send hangup */ 1935 /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ 1936 /* if CD is dropped and the line is not CLOCAL then we should hangup */ 1937 1938 need_flip = 0; 1939 for (packet_offset = priv->rx_processed; packet_offset < urb->actual_length; packet_offset += PKTSZ) { 1940 int length; 1941 1942 /* Compare new line status to the old one, signal if different */ 1943 /* N.B. packet may be processed more than once, but differences 1944 * are only processed once. */ 1945 if (priv != NULL) { 1946 char new_status = data[packet_offset+0] & FTDI_STATUS_B0_MASK; 1947 if (new_status != priv->prev_status) { 1948 priv->diff_status |= new_status ^ priv->prev_status; 1949 wake_up_interruptible(&priv->delta_msr_wait); 1950 priv->prev_status = new_status; 1951 } 1952 } 1953 1954 length = min(PKTSZ, urb->actual_length-packet_offset)-2; 1955 if (length < 0) { 1956 err("%s - bad packet length: %d", __FUNCTION__, length+2); 1957 length = 0; 1958 } 1959 1960 /* have to make sure we don't overflow the buffer 1961 with tty_insert_flip_char's */ 1962 if (tty->flip.count+length > TTY_FLIPBUF_SIZE) { 1963 tty_flip_buffer_push(tty); 1964 need_flip = 0; 1965 1966 if (tty->flip.count != 0) { 1967 /* flip didn't work, this happens when ftdi_process_read() is 1968 * called from ftdi_unthrottle, because TTY_DONT_FLIP is set */ 1969 dbg("%s - flip buffer push failed", __FUNCTION__); 1970 break; 1971 } 1972 } 1973 if (priv->rx_flags & THROTTLED) { 1974 dbg("%s - throttled", __FUNCTION__); 1975 break; 1976 } 1977 if (tty->ldisc.receive_room(tty)-tty->flip.count < length) { 1978 /* break out & wait for throttling/unthrottling to happen */ 1979 dbg("%s - receive room low", __FUNCTION__); 1980 break; 1981 } 1982 1983 /* Handle errors and break */ 1984 error_flag = TTY_NORMAL; 1985 /* Although the device uses a bitmask and hence can have multiple */ 1986 /* errors on a packet - the order here sets the priority the */ 1987 /* error is returned to the tty layer */ 1988 1989 if ( data[packet_offset+1] & FTDI_RS_OE ) { 1990 error_flag = TTY_OVERRUN; 1991 dbg("OVERRRUN error"); 1992 } 1993 if ( data[packet_offset+1] & FTDI_RS_BI ) { 1994 error_flag = TTY_BREAK; 1995 dbg("BREAK received"); 1996 } 1997 if ( data[packet_offset+1] & FTDI_RS_PE ) { 1998 error_flag = TTY_PARITY; 1999 dbg("PARITY error"); 2000 } 2001 if ( data[packet_offset+1] & FTDI_RS_FE ) { 2002 error_flag = TTY_FRAME; 2003 dbg("FRAMING error"); 2004 } 2005 if (length > 0) { 2006 for (i = 2; i < length+2; i++) { 2007 /* Note that the error flag is duplicated for 2008 every character received since we don't know 2009 which character it applied to */ 2010 tty_insert_flip_char(tty, data[packet_offset+i], error_flag); 2011 } 2012 need_flip = 1; 2013 } 2014 2015 #ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW 2016 /* if a parity error is detected you get status packets forever 2017 until a character is sent without a parity error. 2018 This doesn't work well since the application receives a never 2019 ending stream of bad data - even though new data hasn't been sent. 2020 Therefore I (bill) have taken this out. 2021 However - this might make sense for framing errors and so on 2022 so I am leaving the code in for now. 2023 */ 2024 else { 2025 if (error_flag != TTY_NORMAL){ 2026 dbg("error_flag is not normal"); 2027 /* In this case it is just status - if that is an error send a bad character */ 2028 if(tty->flip.count >= TTY_FLIPBUF_SIZE) { 2029 tty_flip_buffer_push(tty); 2030 } 2031 tty_insert_flip_char(tty, 0xff, error_flag); 2032 need_flip = 1; 2033 } 2034 } 2035 #endif 2036 } /* "for(packet_offset=0..." */ 2037 2038 /* Low latency */ 2039 if (need_flip) { 2040 tty_flip_buffer_push(tty); 2041 } 2042 2043 if (packet_offset < urb->actual_length) { 2044 /* not completely processed - record progress */ 2045 priv->rx_processed = packet_offset; 2046 dbg("%s - incomplete, %d bytes processed, %d remain", 2047 __FUNCTION__, packet_offset, 2048 urb->actual_length - packet_offset); 2049 /* check if we were throttled while processing */ 2050 spin_lock_irqsave(&priv->rx_lock, flags); 2051 if (priv->rx_flags & THROTTLED) { 2052 priv->rx_flags |= ACTUALLY_THROTTLED; 2053 spin_unlock_irqrestore(&priv->rx_lock, flags); 2054 dbg("%s - deferring remainder until unthrottled", 2055 __FUNCTION__); 2056 return; 2057 } 2058 spin_unlock_irqrestore(&priv->rx_lock, flags); 2059 /* if the port is closed stop trying to read */ 2060 if (port->open_count > 0){ 2061 /* delay processing of remainder */ 2062 schedule_delayed_work(&priv->rx_work, 1); 2063 } else { 2064 dbg("%s - port is closed", __FUNCTION__); 2065 } 2066 return; 2067 } 2068 2069 /* urb is completely processed */ 2070 priv->rx_processed = 0; 2071 2072 /* if the port is closed stop trying to read */ 2073 if (port->open_count > 0){ 2074 /* Continue trying to always read */ 2075 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 2076 usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), 2077 port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, 2078 ftdi_read_bulk_callback, port); 2079 2080 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 2081 if (result) 2082 err("%s - failed resubmitting read urb, error %d", __FUNCTION__, result); 2083 } 2084 2085 return; 2086 } /* ftdi_process_read */ 2087 2088 2089 static void ftdi_break_ctl( struct usb_serial_port *port, int break_state ) 2090 { 2091 struct ftdi_private *priv = usb_get_serial_port_data(port); 2092 __u16 urb_value = 0; 2093 char buf[1]; 2094 2095 /* break_state = -1 to turn on break, and 0 to turn off break */ 2096 /* see drivers/char/tty_io.c to see it used */ 2097 /* last_set_data_urb_value NEVER has the break bit set in it */ 2098 2099 if (break_state) { 2100 urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK; 2101 } else { 2102 urb_value = priv->last_set_data_urb_value; 2103 } 2104 2105 2106 if (usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0), 2107 FTDI_SIO_SET_DATA_REQUEST, 2108 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2109 urb_value , priv->interface, 2110 buf, 0, WDR_TIMEOUT) < 0) { 2111 err("%s FAILED to enable/disable break state (state was %d)", __FUNCTION__,break_state); 2112 } 2113 2114 dbg("%s break state is %d - urb is %d", __FUNCTION__,break_state, urb_value); 2115 2116 } 2117 2118 2119 /* old_termios contains the original termios settings and tty->termios contains 2120 * the new setting to be used 2121 * WARNING: set_termios calls this with old_termios in kernel space 2122 */ 2123 2124 static void ftdi_set_termios (struct usb_serial_port *port, struct termios *old_termios) 2125 { /* ftdi_termios */ 2126 struct usb_device *dev = port->serial->dev; 2127 unsigned int cflag = port->tty->termios->c_cflag; 2128 struct ftdi_private *priv = usb_get_serial_port_data(port); 2129 __u16 urb_value; /* will hold the new flags */ 2130 char buf[1]; /* Perhaps I should dynamically alloc this? */ 2131 2132 // Added for xon/xoff support 2133 unsigned int iflag = port->tty->termios->c_iflag; 2134 unsigned char vstop; 2135 unsigned char vstart; 2136 2137 dbg("%s", __FUNCTION__); 2138 2139 /* Force baud rate if this device requires it, unless it is set to B0. */ 2140 if (priv->force_baud && ((port->tty->termios->c_cflag & CBAUD) != B0)) { 2141 dbg("%s: forcing baud rate for this device", __FUNCTION__); 2142 port->tty->termios->c_cflag &= ~CBAUD; 2143 port->tty->termios->c_cflag |= priv->force_baud; 2144 } 2145 2146 /* Force RTS-CTS if this device requires it. */ 2147 if (priv->force_rtscts) { 2148 dbg("%s: forcing rtscts for this device", __FUNCTION__); 2149 port->tty->termios->c_cflag |= CRTSCTS; 2150 } 2151 2152 cflag = port->tty->termios->c_cflag; 2153 2154 /* FIXME -For this cut I don't care if the line is really changing or 2155 not - so just do the change regardless - should be able to 2156 compare old_termios and tty->termios */ 2157 /* NOTE These routines can get interrupted by 2158 ftdi_sio_read_bulk_callback - need to examine what this 2159 means - don't see any problems yet */ 2160 2161 /* Set number of data bits, parity, stop bits */ 2162 2163 urb_value = 0; 2164 urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 : 2165 FTDI_SIO_SET_DATA_STOP_BITS_1); 2166 urb_value |= (cflag & PARENB ? 2167 (cflag & PARODD ? FTDI_SIO_SET_DATA_PARITY_ODD : 2168 FTDI_SIO_SET_DATA_PARITY_EVEN) : 2169 FTDI_SIO_SET_DATA_PARITY_NONE); 2170 if (cflag & CSIZE) { 2171 switch (cflag & CSIZE) { 2172 case CS5: urb_value |= 5; dbg("Setting CS5"); break; 2173 case CS6: urb_value |= 6; dbg("Setting CS6"); break; 2174 case CS7: urb_value |= 7; dbg("Setting CS7"); break; 2175 case CS8: urb_value |= 8; dbg("Setting CS8"); break; 2176 default: 2177 err("CSIZE was set but not CS5-CS8"); 2178 } 2179 } 2180 2181 /* This is needed by the break command since it uses the same command - but is 2182 * or'ed with this value */ 2183 priv->last_set_data_urb_value = urb_value; 2184 2185 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2186 FTDI_SIO_SET_DATA_REQUEST, 2187 FTDI_SIO_SET_DATA_REQUEST_TYPE, 2188 urb_value , priv->interface, 2189 buf, 0, 100) < 0) { 2190 err("%s FAILED to set databits/stopbits/parity", __FUNCTION__); 2191 } 2192 2193 /* Now do the baudrate */ 2194 if ((cflag & CBAUD) == B0 ) { 2195 /* Disable flow control */ 2196 if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 2197 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2198 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2199 0, priv->interface, 2200 buf, 0, WDR_TIMEOUT) < 0) { 2201 err("%s error from disable flowcontrol urb", __FUNCTION__); 2202 } 2203 /* Drop RTS and DTR */ 2204 if (set_dtr(port, LOW) < 0){ 2205 err("%s Error from DTR LOW urb", __FUNCTION__); 2206 } 2207 if (set_rts(port, LOW) < 0){ 2208 err("%s Error from RTS LOW urb", __FUNCTION__); 2209 } 2210 2211 } else { 2212 /* set the baudrate determined before */ 2213 if (change_speed(port)) { 2214 err("%s urb failed to set baurdrate", __FUNCTION__); 2215 } 2216 /* Ensure RTS and DTR are raised */ 2217 else if (set_dtr(port, HIGH) < 0){ 2218 err("%s Error from DTR HIGH urb", __FUNCTION__); 2219 } 2220 else if (set_rts(port, HIGH) < 0){ 2221 err("%s Error from RTS HIGH urb", __FUNCTION__); 2222 } 2223 } 2224 2225 /* Set flow control */ 2226 /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ 2227 if (cflag & CRTSCTS) { 2228 dbg("%s Setting to CRTSCTS flow control", __FUNCTION__); 2229 if (usb_control_msg(dev, 2230 usb_sndctrlpipe(dev, 0), 2231 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2232 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2233 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), 2234 buf, 0, WDR_TIMEOUT) < 0) { 2235 err("urb failed to set to rts/cts flow control"); 2236 } 2237 2238 } else { 2239 /* 2240 * Xon/Xoff code 2241 * 2242 * Check the IXOFF status in the iflag component of the termios structure 2243 * if IXOFF is not set, the pre-xon/xoff code is executed. 2244 */ 2245 if (iflag & IXOFF) { 2246 dbg("%s request to enable xonxoff iflag=%04x",__FUNCTION__,iflag); 2247 // Try to enable the XON/XOFF on the ftdi_sio 2248 // Set the vstart and vstop -- could have been done up above where 2249 // a lot of other dereferencing is done but that would be very 2250 // inefficient as vstart and vstop are not always needed 2251 vstart=port->tty->termios->c_cc[VSTART]; 2252 vstop=port->tty->termios->c_cc[VSTOP]; 2253 urb_value=(vstop << 8) | (vstart); 2254 2255 if (usb_control_msg(dev, 2256 usb_sndctrlpipe(dev, 0), 2257 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2258 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2259 urb_value , (FTDI_SIO_XON_XOFF_HS 2260 | priv->interface), 2261 buf, 0, WDR_TIMEOUT) < 0) { 2262 err("urb failed to set to xon/xoff flow control"); 2263 } 2264 } else { 2265 /* else clause to only run if cfag ! CRTSCTS and iflag ! XOFF */ 2266 /* CHECKME Assuming XON/XOFF handled by tty stack - not by device */ 2267 dbg("%s Turning off hardware flow control", __FUNCTION__); 2268 if (usb_control_msg(dev, 2269 usb_sndctrlpipe(dev, 0), 2270 FTDI_SIO_SET_FLOW_CTRL_REQUEST, 2271 FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 2272 0, priv->interface, 2273 buf, 0, WDR_TIMEOUT) < 0) { 2274 err("urb failed to clear flow control"); 2275 } 2276 } 2277 2278 } 2279 return; 2280 } /* ftdi_termios */ 2281 2282 2283 static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file) 2284 { 2285 struct ftdi_private *priv = usb_get_serial_port_data(port); 2286 unsigned char buf[2]; 2287 int ret; 2288 2289 dbg("%s TIOCMGET", __FUNCTION__); 2290 switch (priv->chip_type) { 2291 case SIO: 2292 /* Request the status from the device */ 2293 if ((ret = usb_control_msg(port->serial->dev, 2294 usb_rcvctrlpipe(port->serial->dev, 0), 2295 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2296 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2297 0, 0, 2298 buf, 1, WDR_TIMEOUT)) < 0 ) { 2299 err("%s Could not get modem status of device - err: %d", __FUNCTION__, 2300 ret); 2301 return(ret); 2302 } 2303 break; 2304 case FT8U232AM: 2305 case FT232BM: 2306 case FT2232C: 2307 /* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same 2308 format as the data returned from the in point */ 2309 if ((ret = usb_control_msg(port->serial->dev, 2310 usb_rcvctrlpipe(port->serial->dev, 0), 2311 FTDI_SIO_GET_MODEM_STATUS_REQUEST, 2312 FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, 2313 0, priv->interface, 2314 buf, 2, WDR_TIMEOUT)) < 0 ) { 2315 err("%s Could not get modem status of device - err: %d", __FUNCTION__, 2316 ret); 2317 return(ret); 2318 } 2319 break; 2320 default: 2321 return -EFAULT; 2322 break; 2323 } 2324 2325 return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | 2326 (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | 2327 (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | 2328 (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | 2329 priv->last_dtr_rts; 2330 } 2331 2332 static int ftdi_tiocmset(struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear) 2333 { 2334 int ret; 2335 2336 dbg("%s TIOCMSET", __FUNCTION__); 2337 if (set & TIOCM_DTR){ 2338 if ((ret = set_dtr(port, HIGH)) < 0) { 2339 err("Urb to set DTR failed"); 2340 return(ret); 2341 } 2342 } 2343 if (set & TIOCM_RTS) { 2344 if ((ret = set_rts(port, HIGH)) < 0){ 2345 err("Urb to set RTS failed"); 2346 return(ret); 2347 } 2348 } 2349 2350 if (clear & TIOCM_DTR){ 2351 if ((ret = set_dtr(port, LOW)) < 0){ 2352 err("Urb to unset DTR failed"); 2353 return(ret); 2354 } 2355 } 2356 if (clear & TIOCM_RTS) { 2357 if ((ret = set_rts(port, LOW)) < 0){ 2358 err("Urb to unset RTS failed"); 2359 return(ret); 2360 } 2361 } 2362 return(0); 2363 } 2364 2365 2366 static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg) 2367 { 2368 struct ftdi_private *priv = usb_get_serial_port_data(port); 2369 2370 int ret, mask; 2371 2372 dbg("%s cmd 0x%04x", __FUNCTION__, cmd); 2373 2374 /* Based on code from acm.c and others */ 2375 switch (cmd) { 2376 2377 case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */ 2378 dbg("%s TIOCMBIS", __FUNCTION__); 2379 if (get_user(mask, (unsigned long __user *) arg)) 2380 return -EFAULT; 2381 if (mask & TIOCM_DTR){ 2382 if ((ret = set_dtr(port, HIGH)) < 0) { 2383 err("Urb to set DTR failed"); 2384 return(ret); 2385 } 2386 } 2387 if (mask & TIOCM_RTS) { 2388 if ((ret = set_rts(port, HIGH)) < 0){ 2389 err("Urb to set RTS failed"); 2390 return(ret); 2391 } 2392 } 2393 return(0); 2394 break; 2395 2396 case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */ 2397 dbg("%s TIOCMBIC", __FUNCTION__); 2398 if (get_user(mask, (unsigned long __user *) arg)) 2399 return -EFAULT; 2400 if (mask & TIOCM_DTR){ 2401 if ((ret = set_dtr(port, LOW)) < 0){ 2402 err("Urb to unset DTR failed"); 2403 return(ret); 2404 } 2405 } 2406 if (mask & TIOCM_RTS) { 2407 if ((ret = set_rts(port, LOW)) < 0){ 2408 err("Urb to unset RTS failed"); 2409 return(ret); 2410 } 2411 } 2412 return(0); 2413 break; 2414 2415 /* 2416 * I had originally implemented TCSET{A,S}{,F,W} and 2417 * TCGET{A,S} here separately, however when testing I 2418 * found that the higher layers actually do the termios 2419 * conversions themselves and pass the call onto 2420 * ftdi_sio_set_termios. 2421 * 2422 */ 2423 2424 case TIOCGSERIAL: /* gets serial port data */ 2425 return get_serial_info(port, (struct serial_struct __user *) arg); 2426 2427 case TIOCSSERIAL: /* sets serial port data */ 2428 return set_serial_info(port, (struct serial_struct __user *) arg); 2429 2430 /* 2431 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change 2432 * - mask passed in arg for lines of interest 2433 * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) 2434 * Caller should use TIOCGICOUNT to see which one it was. 2435 * 2436 * This code is borrowed from linux/drivers/char/serial.c 2437 */ 2438 case TIOCMIWAIT: 2439 while (priv != NULL) { 2440 interruptible_sleep_on(&priv->delta_msr_wait); 2441 /* see if a signal did it */ 2442 if (signal_pending(current)) 2443 return -ERESTARTSYS; 2444 else { 2445 char diff = priv->diff_status; 2446 2447 if (diff == 0) { 2448 return -EIO; /* no change => error */ 2449 } 2450 2451 /* Consume all events */ 2452 priv->diff_status = 0; 2453 2454 /* Return 0 if caller wanted to know about these bits */ 2455 if ( ((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || 2456 ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || 2457 ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || 2458 ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS)) ) { 2459 return 0; 2460 } 2461 /* 2462 * Otherwise caller can't care less about what happened, 2463 * and so we continue to wait for more events. 2464 */ 2465 } 2466 } 2467 return(0); 2468 break; 2469 default: 2470 break; 2471 2472 } 2473 2474 2475 /* This is not necessarily an error - turns out the higher layers will do 2476 * some ioctls itself (see comment above) 2477 */ 2478 dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __FUNCTION__, cmd); 2479 2480 return(-ENOIOCTLCMD); 2481 } /* ftdi_ioctl */ 2482 2483 2484 static void ftdi_throttle (struct usb_serial_port *port) 2485 { 2486 struct ftdi_private *priv = usb_get_serial_port_data(port); 2487 unsigned long flags; 2488 2489 dbg("%s - port %d", __FUNCTION__, port->number); 2490 2491 spin_lock_irqsave(&priv->rx_lock, flags); 2492 priv->rx_flags |= THROTTLED; 2493 spin_unlock_irqrestore(&priv->rx_lock, flags); 2494 } 2495 2496 2497 static void ftdi_unthrottle (struct usb_serial_port *port) 2498 { 2499 struct ftdi_private *priv = usb_get_serial_port_data(port); 2500 int actually_throttled; 2501 unsigned long flags; 2502 2503 dbg("%s - port %d", __FUNCTION__, port->number); 2504 2505 spin_lock_irqsave(&priv->rx_lock, flags); 2506 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; 2507 priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); 2508 spin_unlock_irqrestore(&priv->rx_lock, flags); 2509 2510 if (actually_throttled) 2511 schedule_work(&priv->rx_work); 2512 } 2513 2514 static int __init ftdi_init (void) 2515 { 2516 int retval; 2517 2518 dbg("%s", __FUNCTION__); 2519 retval = usb_serial_register(&ftdi_SIO_device); 2520 if (retval) 2521 goto failed_SIO_register; 2522 retval = usb_serial_register(&ftdi_8U232AM_device); 2523 if (retval) 2524 goto failed_8U232AM_register; 2525 retval = usb_serial_register(&ftdi_FT232BM_device); 2526 if (retval) 2527 goto failed_FT232BM_register; 2528 retval = usb_serial_register(&ftdi_FT2232C_device); 2529 if (retval) 2530 goto failed_FT2232C_register; 2531 retval = usb_serial_register(&ftdi_USB_UIRT_device); 2532 if (retval) 2533 goto failed_USB_UIRT_register; 2534 retval = usb_serial_register(&ftdi_HE_TIRA1_device); 2535 if (retval) 2536 goto failed_HE_TIRA1_register; 2537 retval = usb_register(&ftdi_driver); 2538 if (retval) 2539 goto failed_usb_register; 2540 2541 info(DRIVER_VERSION ":" DRIVER_DESC); 2542 return 0; 2543 failed_usb_register: 2544 usb_serial_deregister(&ftdi_HE_TIRA1_device); 2545 failed_HE_TIRA1_register: 2546 usb_serial_deregister(&ftdi_USB_UIRT_device); 2547 failed_USB_UIRT_register: 2548 usb_serial_deregister(&ftdi_FT2232C_device); 2549 failed_FT2232C_register: 2550 usb_serial_deregister(&ftdi_FT232BM_device); 2551 failed_FT232BM_register: 2552 usb_serial_deregister(&ftdi_8U232AM_device); 2553 failed_8U232AM_register: 2554 usb_serial_deregister(&ftdi_SIO_device); 2555 failed_SIO_register: 2556 return retval; 2557 } 2558 2559 2560 static void __exit ftdi_exit (void) 2561 { 2562 2563 dbg("%s", __FUNCTION__); 2564 2565 usb_deregister (&ftdi_driver); 2566 usb_serial_deregister (&ftdi_HE_TIRA1_device); 2567 usb_serial_deregister (&ftdi_USB_UIRT_device); 2568 usb_serial_deregister (&ftdi_FT2232C_device); 2569 usb_serial_deregister (&ftdi_FT232BM_device); 2570 usb_serial_deregister (&ftdi_8U232AM_device); 2571 usb_serial_deregister (&ftdi_SIO_device); 2572 2573 } 2574 2575 2576 module_init(ftdi_init); 2577 module_exit(ftdi_exit); 2578 2579 MODULE_AUTHOR( DRIVER_AUTHOR ); 2580 MODULE_DESCRIPTION( DRIVER_DESC ); 2581 MODULE_LICENSE("GPL"); 2582 2583 module_param(debug, bool, S_IRUGO | S_IWUSR); 2584 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2585 2586