mceusb.c revision 32cf86f6d16367db5a10039c1dd938a2427d697c
1/* 2 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers 3 * 4 * Copyright (c) 2010 by Jarod Wilson <jarod@redhat.com> 5 * 6 * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan 7 * Conti, Martin Blatter and Daniel Melander, the latter of which was 8 * in turn also based on the lirc_atiusb driver by Paul Miller. The 9 * two mce drivers were merged into one by Jarod Wilson, with transmit 10 * support for the 1st-gen device added primarily by Patrick Calhoun, 11 * with a bit of tweaks by Jarod. Debugging improvements and proper 12 * support for what appears to be 3rd-gen hardware added by Jarod. 13 * Initial port from lirc driver to ir-core drivery by Jarod, based 14 * partially on a port to an earlier proposed IR infrastructure by 15 * Jon Smirl, which included enhancements and simplifications to the 16 * incoming IR buffer parsing routines. 17 * 18 * 19 * This program is free software; you can redistribute it and/or modify 20 * it under the terms of the GNU General Public License as published by 21 * the Free Software Foundation; either version 2 of the License, or 22 * (at your option) any later version. 23 * 24 * This program is distributed in the hope that it will be useful, 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27 * GNU General Public License for more details. 28 * 29 * You should have received a copy of the GNU General Public License 30 * along with this program; if not, write to the Free Software 31 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 32 * 33 */ 34 35#include <linux/device.h> 36#include <linux/module.h> 37#include <linux/slab.h> 38#include <linux/input.h> 39#include <linux/usb.h> 40#include <linux/usb/input.h> 41#include <media/ir-core.h> 42 43#define DRIVER_VERSION "1.91" 44#define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" 45#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ 46 "device driver" 47#define DRIVER_NAME "mceusb" 48 49#define USB_BUFLEN 32 /* USB reception buffer length */ 50#define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */ 51#define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */ 52#define MS_TO_NS(msec) ((msec) * 1000) 53 54/* MCE constants */ 55#define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */ 56#define MCE_TIME_UNIT 50 /* Approx 50us resolution */ 57#define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */ 58#define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */ 59#define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */ 60#define MCE_IRDATA_TRAILER 0x80 /* End of IR data */ 61#define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */ 62#define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */ 63#define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */ 64#define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */ 65#define MCE_PULSE_MASK 0x7f /* Pulse mask */ 66#define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */ 67 68#define MCE_HW_CMD_HEADER 0xff /* MCE hardware command header */ 69#define MCE_COMMAND_HEADER 0x9f /* MCE command header */ 70#define MCE_COMMAND_MASK 0xe0 /* Mask out command bits */ 71#define MCE_COMMAND_NULL 0x00 /* These show up various places... */ 72/* if buf[i] & MCE_COMMAND_MASK == 0x80 and buf[i] != MCE_COMMAND_HEADER, 73 * then we're looking at a raw IR data sample */ 74#define MCE_COMMAND_IRDATA 0x80 75#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */ 76 77/* Sub-commands, which follow MCE_COMMAND_HEADER or MCE_HW_CMD_HEADER */ 78#define MCE_CMD_SIG_END 0x01 /* End of signal */ 79#define MCE_CMD_PING 0x03 /* Ping device */ 80#define MCE_CMD_UNKNOWN 0x04 /* Unknown */ 81#define MCE_CMD_UNKNOWN2 0x05 /* Unknown */ 82#define MCE_CMD_S_CARRIER 0x06 /* Set TX carrier frequency */ 83#define MCE_CMD_G_CARRIER 0x07 /* Get TX carrier frequency */ 84#define MCE_CMD_S_TXMASK 0x08 /* Set TX port bitmask */ 85#define MCE_CMD_UNKNOWN3 0x09 /* Unknown */ 86#define MCE_CMD_UNKNOWN4 0x0a /* Unknown */ 87#define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */ 88#define MCE_CMD_S_TIMEOUT 0x0c /* Set RX timeout value */ 89#define MCE_CMD_G_TIMEOUT 0x0d /* Get RX timeout value */ 90#define MCE_CMD_UNKNOWN5 0x0e /* Unknown */ 91#define MCE_CMD_UNKNOWN6 0x0f /* Unknown */ 92#define MCE_CMD_G_RXPORTSTS 0x11 /* Get RX port status */ 93#define MCE_CMD_G_TXMASK 0x13 /* Set TX port bitmask */ 94#define MCE_CMD_S_RXSENSOR 0x14 /* Set RX sensor (std/learning) */ 95#define MCE_CMD_G_RXSENSOR 0x15 /* Get RX sensor (std/learning) */ 96#define MCE_RSP_PULSE_COUNT 0x15 /* RX pulse count (only if learning) */ 97#define MCE_CMD_TX_PORTS 0x16 /* Get number of TX ports */ 98#define MCE_CMD_G_WAKESRC 0x17 /* Get wake source */ 99#define MCE_CMD_UNKNOWN7 0x18 /* Unknown */ 100#define MCE_CMD_UNKNOWN8 0x19 /* Unknown */ 101#define MCE_CMD_UNKNOWN9 0x1b /* Unknown */ 102#define MCE_CMD_DEVICE_RESET 0xaa /* Reset the hardware */ 103#define MCE_RSP_CMD_INVALID 0xfe /* Invalid command issued */ 104 105 106/* module parameters */ 107#ifdef CONFIG_USB_DEBUG 108static int debug = 1; 109#else 110static int debug; 111#endif 112 113/* general constants */ 114#define SEND_FLAG_IN_PROGRESS 1 115#define SEND_FLAG_COMPLETE 2 116#define RECV_FLAG_IN_PROGRESS 3 117#define RECV_FLAG_COMPLETE 4 118 119#define MCEUSB_RX 1 120#define MCEUSB_TX 2 121 122#define VENDOR_PHILIPS 0x0471 123#define VENDOR_SMK 0x0609 124#define VENDOR_TATUNG 0x1460 125#define VENDOR_GATEWAY 0x107b 126#define VENDOR_SHUTTLE 0x1308 127#define VENDOR_SHUTTLE2 0x051c 128#define VENDOR_MITSUMI 0x03ee 129#define VENDOR_TOPSEED 0x1784 130#define VENDOR_RICAVISION 0x179d 131#define VENDOR_ITRON 0x195d 132#define VENDOR_FIC 0x1509 133#define VENDOR_LG 0x043e 134#define VENDOR_MICROSOFT 0x045e 135#define VENDOR_FORMOSA 0x147a 136#define VENDOR_FINTEK 0x1934 137#define VENDOR_PINNACLE 0x2304 138#define VENDOR_ECS 0x1019 139#define VENDOR_WISTRON 0x0fb8 140#define VENDOR_COMPRO 0x185b 141#define VENDOR_NORTHSTAR 0x04eb 142#define VENDOR_REALTEK 0x0bda 143#define VENDOR_TIVO 0x105a 144#define VENDOR_CONEXANT 0x0572 145 146enum mceusb_model_type { 147 MCE_GEN2 = 0, /* Most boards */ 148 MCE_GEN1, 149 MCE_GEN3, 150 MCE_GEN2_TX_INV, 151 POLARIS_EVK, 152 CX_HYBRID_TV, 153}; 154 155struct mceusb_model { 156 u32 mce_gen1:1; 157 u32 mce_gen2:1; 158 u32 mce_gen3:1; 159 u32 tx_mask_normal:1; 160 u32 is_polaris:1; 161 u32 no_tx:1; 162 163 const char *rc_map; /* Allow specify a per-board map */ 164 const char *name; /* per-board name */ 165}; 166 167static const struct mceusb_model mceusb_model[] = { 168 [MCE_GEN1] = { 169 .mce_gen1 = 1, 170 .tx_mask_normal = 1, 171 }, 172 [MCE_GEN2] = { 173 .mce_gen2 = 1, 174 }, 175 [MCE_GEN2_TX_INV] = { 176 .mce_gen2 = 1, 177 .tx_mask_normal = 1, 178 }, 179 [MCE_GEN3] = { 180 .mce_gen3 = 1, 181 .tx_mask_normal = 1, 182 }, 183 [POLARIS_EVK] = { 184 .is_polaris = 1, 185 /* 186 * In fact, the EVK is shipped without 187 * remotes, but we should have something handy, 188 * to allow testing it 189 */ 190 .rc_map = RC_MAP_RC5_HAUPPAUGE_NEW, 191 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 192 }, 193 [CX_HYBRID_TV] = { 194 .is_polaris = 1, 195 .no_tx = 1, /* tx isn't wired up at all */ 196 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 197 }, 198}; 199 200static struct usb_device_id mceusb_dev_table[] = { 201 /* Original Microsoft MCE IR Transceiver (often HP-branded) */ 202 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d), 203 .driver_info = MCE_GEN1 }, 204 /* Philips Infrared Transceiver - Sahara branded */ 205 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, 206 /* Philips Infrared Transceiver - HP branded */ 207 { USB_DEVICE(VENDOR_PHILIPS, 0x060c), 208 .driver_info = MCE_GEN2_TX_INV }, 209 /* Philips SRM5100 */ 210 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, 211 /* Philips Infrared Transceiver - Omaura */ 212 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, 213 /* Philips Infrared Transceiver - Spinel plus */ 214 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, 215 /* Philips eHome Infrared Transceiver */ 216 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, 217 /* Philips/Spinel plus IR transceiver for ASUS */ 218 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, 219 /* Philips/Spinel plus IR transceiver for ASUS */ 220 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, 221 /* Realtek MCE IR Receiver */ 222 { USB_DEVICE(VENDOR_REALTEK, 0x0161) }, 223 /* SMK/Toshiba G83C0004D410 */ 224 { USB_DEVICE(VENDOR_SMK, 0x031d), 225 .driver_info = MCE_GEN2_TX_INV }, 226 /* SMK eHome Infrared Transceiver (Sony VAIO) */ 227 { USB_DEVICE(VENDOR_SMK, 0x0322), 228 .driver_info = MCE_GEN2_TX_INV }, 229 /* bundled with Hauppauge PVR-150 */ 230 { USB_DEVICE(VENDOR_SMK, 0x0334), 231 .driver_info = MCE_GEN2_TX_INV }, 232 /* SMK eHome Infrared Transceiver */ 233 { USB_DEVICE(VENDOR_SMK, 0x0338) }, 234 /* Tatung eHome Infrared Transceiver */ 235 { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, 236 /* Shuttle eHome Infrared Transceiver */ 237 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, 238 /* Shuttle eHome Infrared Transceiver */ 239 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, 240 /* Gateway eHome Infrared Transceiver */ 241 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, 242 /* Mitsumi */ 243 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, 244 /* Topseed eHome Infrared Transceiver */ 245 { USB_DEVICE(VENDOR_TOPSEED, 0x0001), 246 .driver_info = MCE_GEN2_TX_INV }, 247 /* Topseed HP eHome Infrared Transceiver */ 248 { USB_DEVICE(VENDOR_TOPSEED, 0x0006), 249 .driver_info = MCE_GEN2_TX_INV }, 250 /* Topseed eHome Infrared Transceiver */ 251 { USB_DEVICE(VENDOR_TOPSEED, 0x0007), 252 .driver_info = MCE_GEN2_TX_INV }, 253 /* Topseed eHome Infrared Transceiver */ 254 { USB_DEVICE(VENDOR_TOPSEED, 0x0008), 255 .driver_info = MCE_GEN3 }, 256 /* Topseed eHome Infrared Transceiver */ 257 { USB_DEVICE(VENDOR_TOPSEED, 0x000a), 258 .driver_info = MCE_GEN2_TX_INV }, 259 /* Topseed eHome Infrared Transceiver */ 260 { USB_DEVICE(VENDOR_TOPSEED, 0x0011), 261 .driver_info = MCE_GEN2_TX_INV }, 262 /* Ricavision internal Infrared Transceiver */ 263 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, 264 /* Itron ione Libra Q-11 */ 265 { USB_DEVICE(VENDOR_ITRON, 0x7002) }, 266 /* FIC eHome Infrared Transceiver */ 267 { USB_DEVICE(VENDOR_FIC, 0x9242) }, 268 /* LG eHome Infrared Transceiver */ 269 { USB_DEVICE(VENDOR_LG, 0x9803) }, 270 /* Microsoft MCE Infrared Transceiver */ 271 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, 272 /* Formosa eHome Infrared Transceiver */ 273 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, 274 /* Formosa21 / eHome Infrared Receiver */ 275 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, 276 /* Formosa aim / Trust MCE Infrared Receiver */ 277 { USB_DEVICE(VENDOR_FORMOSA, 0xe017) }, 278 /* Formosa Industrial Computing / Beanbag Emulation Device */ 279 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, 280 /* Formosa21 / eHome Infrared Receiver */ 281 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, 282 /* Formosa Industrial Computing AIM IR605/A */ 283 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, 284 /* Formosa Industrial Computing */ 285 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, 286 /* Fintek eHome Infrared Transceiver (HP branded) */ 287 { USB_DEVICE(VENDOR_FINTEK, 0x5168) }, 288 /* Fintek eHome Infrared Transceiver */ 289 { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, 290 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ 291 { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, 292 /* Pinnacle Remote Kit */ 293 { USB_DEVICE(VENDOR_PINNACLE, 0x0225), 294 .driver_info = MCE_GEN3 }, 295 /* Elitegroup Computer Systems IR */ 296 { USB_DEVICE(VENDOR_ECS, 0x0f38) }, 297 /* Wistron Corp. eHome Infrared Receiver */ 298 { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, 299 /* Compro K100 */ 300 { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, 301 /* Compro K100 v2 */ 302 { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, 303 /* Northstar Systems, Inc. eHome Infrared Transceiver */ 304 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, 305 /* TiVo PC IR Receiver */ 306 { USB_DEVICE(VENDOR_TIVO, 0x2000) }, 307 /* Conexant Hybrid TV "Shelby" Polaris SDK */ 308 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1), 309 .driver_info = POLARIS_EVK }, 310 /* Conexant Hybrid TV RDU253S Polaris */ 311 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5), 312 .driver_info = CX_HYBRID_TV }, 313 /* Terminating entry */ 314 { } 315}; 316 317/* data structure for each usb transceiver */ 318struct mceusb_dev { 319 /* ir-core bits */ 320 struct ir_dev_props *props; 321 322 /* optional features we can enable */ 323 bool carrier_report_enabled; 324 bool learning_enabled; 325 326 /* core device bits */ 327 struct device *dev; 328 struct input_dev *idev; 329 330 /* usb */ 331 struct usb_device *usbdev; 332 struct urb *urb_in; 333 struct usb_endpoint_descriptor *usb_ep_in; 334 struct usb_endpoint_descriptor *usb_ep_out; 335 336 /* buffers and dma */ 337 unsigned char *buf_in; 338 unsigned int len_in; 339 dma_addr_t dma_in; 340 dma_addr_t dma_out; 341 342 enum { 343 CMD_HEADER = 0, 344 SUBCMD, 345 CMD_DATA, 346 PARSE_IRDATA, 347 } parser_state; 348 349 u8 cmd, rem; /* Remaining IR data bytes in packet */ 350 351 struct { 352 u32 connected:1; 353 u32 tx_mask_normal:1; 354 u32 microsoft_gen1:1; 355 u32 no_tx:1; 356 } flags; 357 358 /* transmit support */ 359 int send_flags; 360 u32 carrier; 361 unsigned char tx_mask; 362 363 char name[128]; 364 char phys[64]; 365 enum mceusb_model_type model; 366}; 367 368/* 369 * MCE Device Command Strings 370 * Device command responses vary from device to device... 371 * - DEVICE_RESET resets the hardware to its default state 372 * - GET_REVISION fetches the hardware/software revision, common 373 * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42 374 * - GET_CARRIER_FREQ gets the carrier mode and frequency of the 375 * device, with replies in the form of 9f 06 MM FF, where MM is 0-3, 376 * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is 377 * ((clk / frequency) - 1) 378 * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us, 379 * response in the form of 9f 0c msb lsb 380 * - GET_TX_BITMASK fetches the transmitter bitmask, replies in 381 * the form of 9f 08 bm, where bm is the bitmask 382 * - GET_RX_SENSOR fetches the RX sensor setting -- long-range 383 * general use one or short-range learning one, in the form of 384 * 9f 14 ss, where ss is either 01 for long-range or 02 for short 385 * - SET_CARRIER_FREQ sets a new carrier mode and frequency 386 * - SET_TX_BITMASK sets the transmitter bitmask 387 * - SET_RX_TIMEOUT sets the receiver timeout 388 * - SET_RX_SENSOR sets which receiver sensor to use 389 */ 390static char DEVICE_RESET[] = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER, 391 MCE_CMD_DEVICE_RESET}; 392static char GET_REVISION[] = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION}; 393static char GET_UNKNOWN[] = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7}; 394static char GET_UNKNOWN2[] = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2}; 395static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER}; 396static char GET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT}; 397static char GET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK}; 398static char GET_RX_SENSOR[] = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR}; 399/* sub in desired values in lower byte or bytes for full command */ 400/* FIXME: make use of these for transmit. 401static char SET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, 402 MCE_CMD_S_CARRIER, 0x00, 0x00}; 403static char SET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00}; 404static char SET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, 405 MCE_CMD_S_TIMEOUT, 0x00, 0x00}; 406static char SET_RX_SENSOR[] = {MCE_COMMAND_HEADER, 407 MCE_CMD_S_RXSENSOR, 0x00}; 408*/ 409 410static int mceusb_cmdsize(u8 cmd, u8 subcmd) 411{ 412 int datasize = 0; 413 414 switch (cmd) { 415 case MCE_COMMAND_NULL: 416 if (subcmd == MCE_HW_CMD_HEADER) 417 datasize = 1; 418 break; 419 case MCE_HW_CMD_HEADER: 420 switch (subcmd) { 421 case MCE_CMD_G_REVISION: 422 datasize = 2; 423 break; 424 } 425 case MCE_COMMAND_HEADER: 426 switch (subcmd) { 427 case MCE_CMD_UNKNOWN: 428 case MCE_CMD_S_CARRIER: 429 case MCE_CMD_S_TIMEOUT: 430 case MCE_RSP_PULSE_COUNT: 431 datasize = 2; 432 break; 433 case MCE_CMD_SIG_END: 434 case MCE_CMD_S_TXMASK: 435 case MCE_CMD_S_RXSENSOR: 436 datasize = 1; 437 break; 438 } 439 } 440 return datasize; 441} 442 443static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf, 444 int offset, int len, bool out) 445{ 446 char codes[USB_BUFLEN * 3 + 1]; 447 char inout[9]; 448 u8 cmd, subcmd, data1, data2; 449 struct device *dev = ir->dev; 450 int i, start, skip = 0; 451 452 if (!debug) 453 return; 454 455 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 456 if (ir->flags.microsoft_gen1 && !out && !offset) 457 skip = 2; 458 459 if (len <= skip) 460 return; 461 462 for (i = 0; i < len && i < USB_BUFLEN; i++) 463 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff); 464 465 dev_info(dev, "%sx data: %s(length=%d)\n", 466 (out ? "t" : "r"), codes, len); 467 468 if (out) 469 strcpy(inout, "Request\0"); 470 else 471 strcpy(inout, "Got\0"); 472 473 start = offset + skip; 474 cmd = buf[start] & 0xff; 475 subcmd = buf[start + 1] & 0xff; 476 data1 = buf[start + 2] & 0xff; 477 data2 = buf[start + 3] & 0xff; 478 479 switch (cmd) { 480 case MCE_COMMAND_NULL: 481 if ((subcmd == MCE_HW_CMD_HEADER) && 482 (data1 == MCE_CMD_DEVICE_RESET)) 483 dev_info(dev, "Device reset requested\n"); 484 else 485 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 486 cmd, subcmd); 487 break; 488 case MCE_HW_CMD_HEADER: 489 switch (subcmd) { 490 case MCE_CMD_G_REVISION: 491 if (len == 2) 492 dev_info(dev, "Get hw/sw rev?\n"); 493 else 494 dev_info(dev, "hw/sw rev 0x%02x 0x%02x " 495 "0x%02x 0x%02x\n", data1, data2, 496 buf[start + 4], buf[start + 5]); 497 break; 498 case MCE_CMD_DEVICE_RESET: 499 dev_info(dev, "Device reset requested\n"); 500 break; 501 case MCE_RSP_CMD_INVALID: 502 dev_info(dev, "Previous command not supported\n"); 503 break; 504 case MCE_CMD_UNKNOWN7: 505 case MCE_CMD_UNKNOWN9: 506 default: 507 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 508 cmd, subcmd); 509 break; 510 } 511 break; 512 case MCE_COMMAND_HEADER: 513 switch (subcmd) { 514 case MCE_CMD_SIG_END: 515 dev_info(dev, "End of signal\n"); 516 break; 517 case MCE_CMD_PING: 518 dev_info(dev, "Ping\n"); 519 break; 520 case MCE_CMD_UNKNOWN: 521 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n", 522 data1, data2); 523 break; 524 case MCE_CMD_S_CARRIER: 525 dev_info(dev, "%s carrier mode and freq of " 526 "0x%02x 0x%02x\n", inout, data1, data2); 527 break; 528 case MCE_CMD_G_CARRIER: 529 dev_info(dev, "Get carrier mode and freq\n"); 530 break; 531 case MCE_CMD_S_TXMASK: 532 dev_info(dev, "%s transmit blaster mask of 0x%02x\n", 533 inout, data1); 534 break; 535 case MCE_CMD_S_TIMEOUT: 536 /* value is in units of 50us, so x*50/100 or x/2 ms */ 537 dev_info(dev, "%s receive timeout of %d ms\n", 538 inout, ((data1 << 8) | data2) / 2); 539 break; 540 case MCE_CMD_G_TIMEOUT: 541 dev_info(dev, "Get receive timeout\n"); 542 break; 543 case MCE_CMD_G_TXMASK: 544 dev_info(dev, "Get transmit blaster mask\n"); 545 break; 546 case MCE_CMD_S_RXSENSOR: 547 dev_info(dev, "%s %s-range receive sensor in use\n", 548 inout, data1 == 0x02 ? "short" : "long"); 549 break; 550 case MCE_CMD_G_RXSENSOR: 551 /* aka MCE_RSP_PULSE_COUNT */ 552 if (out) 553 dev_info(dev, "Get receive sensor\n"); 554 else if (ir->learning_enabled) 555 dev_info(dev, "RX pulse count: %d\n", 556 ((data1 << 8) | data2)); 557 break; 558 case MCE_RSP_CMD_INVALID: 559 dev_info(dev, "Error! Hardware is likely wedged...\n"); 560 break; 561 case MCE_CMD_UNKNOWN2: 562 case MCE_CMD_UNKNOWN3: 563 case MCE_CMD_UNKNOWN5: 564 default: 565 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 566 cmd, subcmd); 567 break; 568 } 569 break; 570 default: 571 break; 572 } 573 574 if (cmd == MCE_IRDATA_TRAILER) 575 dev_info(dev, "End of raw IR data\n"); 576 else if ((cmd != MCE_COMMAND_HEADER) && 577 ((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA)) 578 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem); 579} 580 581static void mce_async_callback(struct urb *urb, struct pt_regs *regs) 582{ 583 struct mceusb_dev *ir; 584 int len; 585 586 if (!urb) 587 return; 588 589 ir = urb->context; 590 if (ir) { 591 len = urb->actual_length; 592 593 dev_dbg(ir->dev, "callback called (status=%d len=%d)\n", 594 urb->status, len); 595 596 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true); 597 } 598 599} 600 601/* request incoming or send outgoing usb packet - used to initialize remote */ 602static void mce_request_packet(struct mceusb_dev *ir, 603 struct usb_endpoint_descriptor *ep, 604 unsigned char *data, int size, int urb_type) 605{ 606 int res; 607 struct urb *async_urb; 608 struct device *dev = ir->dev; 609 unsigned char *async_buf; 610 611 if (urb_type == MCEUSB_TX) { 612 async_urb = usb_alloc_urb(0, GFP_KERNEL); 613 if (unlikely(!async_urb)) { 614 dev_err(dev, "Error, couldn't allocate urb!\n"); 615 return; 616 } 617 618 async_buf = kzalloc(size, GFP_KERNEL); 619 if (!async_buf) { 620 dev_err(dev, "Error, couldn't allocate buf!\n"); 621 usb_free_urb(async_urb); 622 return; 623 } 624 625 /* outbound data */ 626 usb_fill_int_urb(async_urb, ir->usbdev, 627 usb_sndintpipe(ir->usbdev, ep->bEndpointAddress), 628 async_buf, size, (usb_complete_t)mce_async_callback, 629 ir, ep->bInterval); 630 memcpy(async_buf, data, size); 631 632 } else if (urb_type == MCEUSB_RX) { 633 /* standard request */ 634 async_urb = ir->urb_in; 635 ir->send_flags = RECV_FLAG_IN_PROGRESS; 636 637 } else { 638 dev_err(dev, "Error! Unknown urb type %d\n", urb_type); 639 return; 640 } 641 642 dev_dbg(dev, "receive request called (size=%#x)\n", size); 643 644 async_urb->transfer_buffer_length = size; 645 async_urb->dev = ir->usbdev; 646 647 res = usb_submit_urb(async_urb, GFP_ATOMIC); 648 if (res) { 649 dev_dbg(dev, "receive request FAILED! (res=%d)\n", res); 650 return; 651 } 652 dev_dbg(dev, "receive request complete (res=%d)\n", res); 653} 654 655static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) 656{ 657 mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX); 658} 659 660static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size) 661{ 662 mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX); 663} 664 665/* Send data out the IR blaster port(s) */ 666static int mceusb_tx_ir(void *priv, int *txbuf, u32 n) 667{ 668 struct mceusb_dev *ir = priv; 669 int i, ret = 0; 670 int count, cmdcount = 0; 671 unsigned char *cmdbuf; /* MCE command buffer */ 672 long signal_duration = 0; /* Singnal length in us */ 673 struct timeval start_time, end_time; 674 675 do_gettimeofday(&start_time); 676 677 count = n / sizeof(int); 678 679 cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL); 680 if (!cmdbuf) 681 return -ENOMEM; 682 683 /* MCE tx init header */ 684 cmdbuf[cmdcount++] = MCE_COMMAND_HEADER; 685 cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK; 686 cmdbuf[cmdcount++] = ir->tx_mask; 687 688 /* Generate mce packet data */ 689 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { 690 signal_duration += txbuf[i]; 691 txbuf[i] = txbuf[i] / MCE_TIME_UNIT; 692 693 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ 694 695 /* Insert mce packet header every 4th entry */ 696 if ((cmdcount < MCE_CMDBUF_SIZE) && 697 (cmdcount - MCE_TX_HEADER_LENGTH) % 698 MCE_CODE_LENGTH == 0) 699 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; 700 701 /* Insert mce packet data */ 702 if (cmdcount < MCE_CMDBUF_SIZE) 703 cmdbuf[cmdcount++] = 704 (txbuf[i] < MCE_PULSE_BIT ? 705 txbuf[i] : MCE_MAX_PULSE_LENGTH) | 706 (i & 1 ? 0x00 : MCE_PULSE_BIT); 707 else { 708 ret = -EINVAL; 709 goto out; 710 } 711 712 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && 713 (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); 714 } 715 716 /* Fix packet length in last header */ 717 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] = 718 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) % 719 MCE_CODE_LENGTH - 1; 720 721 /* Check if we have room for the empty packet at the end */ 722 if (cmdcount >= MCE_CMDBUF_SIZE) { 723 ret = -EINVAL; 724 goto out; 725 } 726 727 /* All mce commands end with an empty packet (0x80) */ 728 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; 729 730 /* Transmit the command to the mce device */ 731 mce_async_out(ir, cmdbuf, cmdcount); 732 733 /* 734 * The lircd gap calculation expects the write function to 735 * wait the time it takes for the ircommand to be sent before 736 * it returns. 737 */ 738 do_gettimeofday(&end_time); 739 signal_duration -= (end_time.tv_usec - start_time.tv_usec) + 740 (end_time.tv_sec - start_time.tv_sec) * 1000000; 741 742 /* delay with the closest number of ticks */ 743 set_current_state(TASK_INTERRUPTIBLE); 744 schedule_timeout(usecs_to_jiffies(signal_duration)); 745 746out: 747 kfree(cmdbuf); 748 return ret ? ret : n; 749} 750 751/* Sets active IR outputs -- mce devices typically have two */ 752static int mceusb_set_tx_mask(void *priv, u32 mask) 753{ 754 struct mceusb_dev *ir = priv; 755 756 if (ir->flags.tx_mask_normal) 757 ir->tx_mask = mask; 758 else 759 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? 760 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; 761 762 return 0; 763} 764 765/* Sets the send carrier frequency and mode */ 766static int mceusb_set_tx_carrier(void *priv, u32 carrier) 767{ 768 struct mceusb_dev *ir = priv; 769 int clk = 10000000; 770 int prescaler = 0, divisor = 0; 771 unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER, 772 MCE_CMD_S_CARRIER, 0x00, 0x00 }; 773 774 /* Carrier has changed */ 775 if (ir->carrier != carrier) { 776 777 if (carrier == 0) { 778 ir->carrier = carrier; 779 cmdbuf[2] = MCE_CMD_SIG_END; 780 cmdbuf[3] = MCE_IRDATA_TRAILER; 781 dev_dbg(ir->dev, "%s: disabling carrier " 782 "modulation\n", __func__); 783 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 784 return carrier; 785 } 786 787 for (prescaler = 0; prescaler < 4; ++prescaler) { 788 divisor = (clk >> (2 * prescaler)) / carrier; 789 if (divisor <= 0xff) { 790 ir->carrier = carrier; 791 cmdbuf[2] = prescaler; 792 cmdbuf[3] = divisor; 793 dev_dbg(ir->dev, "%s: requesting %u HZ " 794 "carrier\n", __func__, carrier); 795 796 /* Transmit new carrier to mce device */ 797 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 798 return carrier; 799 } 800 } 801 802 return -EINVAL; 803 804 } 805 806 return carrier; 807} 808 809/* 810 * We don't do anything but print debug spew for many of the command bits 811 * we receive from the hardware, but some of them are useful information 812 * we want to store so that we can use them. 813 */ 814static void mceusb_handle_command(struct mceusb_dev *ir, int index) 815{ 816 u8 hi = ir->buf_in[index + 1] & 0xff; 817 u8 lo = ir->buf_in[index + 2] & 0xff; 818 819 switch (ir->buf_in[index]) { 820 /* 2-byte return value commands */ 821 case MCE_CMD_S_TIMEOUT: 822 ir->props->timeout = MS_TO_NS((hi << 8 | lo) / 2); 823 break; 824 825 /* 1-byte return value commands */ 826 case MCE_CMD_S_TXMASK: 827 ir->tx_mask = hi; 828 break; 829 case MCE_CMD_S_RXSENSOR: 830 ir->learning_enabled = (hi == 0x02); 831 break; 832 default: 833 break; 834 } 835} 836 837static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) 838{ 839 DEFINE_IR_RAW_EVENT(rawir); 840 int i = 0; 841 842 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 843 if (ir->flags.microsoft_gen1) 844 i = 2; 845 846 /* if there's no data, just return now */ 847 if (buf_len <= i) 848 return; 849 850 for (; i < buf_len; i++) { 851 switch (ir->parser_state) { 852 case SUBCMD: 853 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]); 854 mceusb_dev_printdata(ir, ir->buf_in, i - 1, 855 ir->rem + 2, false); 856 mceusb_handle_command(ir, i); 857 ir->parser_state = CMD_DATA; 858 break; 859 case PARSE_IRDATA: 860 ir->rem--; 861 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); 862 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK) 863 * MS_TO_NS(MCE_TIME_UNIT); 864 865 dev_dbg(ir->dev, "Storing %s with duration %d\n", 866 rawir.pulse ? "pulse" : "space", 867 rawir.duration); 868 869 ir_raw_event_store_with_filter(ir->idev, &rawir); 870 break; 871 case CMD_DATA: 872 ir->rem--; 873 break; 874 case CMD_HEADER: 875 /* decode mce packets of the form (84),AA,BB,CC,DD */ 876 /* IR data packets can span USB messages - rem */ 877 ir->cmd = ir->buf_in[i]; 878 if ((ir->cmd == MCE_COMMAND_HEADER) || 879 ((ir->cmd & MCE_COMMAND_MASK) != 880 MCE_COMMAND_IRDATA)) { 881 ir->parser_state = SUBCMD; 882 continue; 883 } 884 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); 885 mceusb_dev_printdata(ir, ir->buf_in, 886 i, ir->rem + 1, false); 887 if (ir->rem) 888 ir->parser_state = PARSE_IRDATA; 889 break; 890 } 891 892 if (ir->parser_state != CMD_HEADER && !ir->rem) 893 ir->parser_state = CMD_HEADER; 894 } 895 dev_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n"); 896 ir_raw_event_handle(ir->idev); 897} 898 899static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs) 900{ 901 struct mceusb_dev *ir; 902 int buf_len; 903 904 if (!urb) 905 return; 906 907 ir = urb->context; 908 if (!ir) { 909 usb_unlink_urb(urb); 910 return; 911 } 912 913 buf_len = urb->actual_length; 914 915 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) { 916 ir->send_flags = SEND_FLAG_COMPLETE; 917 dev_dbg(ir->dev, "setup answer received %d bytes\n", 918 buf_len); 919 } 920 921 switch (urb->status) { 922 /* success */ 923 case 0: 924 mceusb_process_ir_data(ir, buf_len); 925 break; 926 927 case -ECONNRESET: 928 case -ENOENT: 929 case -ESHUTDOWN: 930 usb_unlink_urb(urb); 931 return; 932 933 case -EPIPE: 934 default: 935 dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status); 936 break; 937 } 938 939 usb_submit_urb(urb, GFP_ATOMIC); 940} 941 942static void mceusb_gen1_init(struct mceusb_dev *ir) 943{ 944 int ret; 945 int maxp = ir->len_in; 946 struct device *dev = ir->dev; 947 char *data; 948 949 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); 950 if (!data) { 951 dev_err(dev, "%s: memory allocation failed!\n", __func__); 952 return; 953 } 954 955 /* 956 * This is a strange one. Windows issues a set address to the device 957 * on the receive control pipe and expect a certain value pair back 958 */ 959 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), 960 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, 961 data, USB_CTRL_MSG_SZ, HZ * 3); 962 dev_dbg(dev, "%s - ret = %d\n", __func__, ret); 963 dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n", 964 __func__, data[0], data[1]); 965 966 /* set feature: bit rate 38400 bps */ 967 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 968 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, 969 0xc04e, 0x0000, NULL, 0, HZ * 3); 970 971 dev_dbg(dev, "%s - ret = %d\n", __func__, ret); 972 973 /* bRequest 4: set char length to 8 bits */ 974 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 975 4, USB_TYPE_VENDOR, 976 0x0808, 0x0000, NULL, 0, HZ * 3); 977 dev_dbg(dev, "%s - retB = %d\n", __func__, ret); 978 979 /* bRequest 2: set handshaking to use DTR/DSR */ 980 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 981 2, USB_TYPE_VENDOR, 982 0x0000, 0x0100, NULL, 0, HZ * 3); 983 dev_dbg(dev, "%s - retC = %d\n", __func__, ret); 984 985 /* device reset */ 986 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET)); 987 mce_sync_in(ir, NULL, maxp); 988 989 /* get hw/sw revision? */ 990 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 991 mce_sync_in(ir, NULL, maxp); 992 993 kfree(data); 994}; 995 996static void mceusb_gen2_init(struct mceusb_dev *ir) 997{ 998 int maxp = ir->len_in; 999 1000 /* device reset */ 1001 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET)); 1002 mce_sync_in(ir, NULL, maxp); 1003 1004 /* get hw/sw revision? */ 1005 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1006 mce_sync_in(ir, NULL, maxp); 1007 1008 /* unknown what the next two actually return... */ 1009 mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN)); 1010 mce_sync_in(ir, NULL, maxp); 1011 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); 1012 mce_sync_in(ir, NULL, maxp); 1013} 1014 1015static void mceusb_get_parameters(struct mceusb_dev *ir) 1016{ 1017 int maxp = ir->len_in; 1018 1019 /* get the carrier and frequency */ 1020 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); 1021 mce_sync_in(ir, NULL, maxp); 1022 1023 if (!ir->flags.no_tx) { 1024 /* get the transmitter bitmask */ 1025 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); 1026 mce_sync_in(ir, NULL, maxp); 1027 } 1028 1029 /* get receiver timeout value */ 1030 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1031 mce_sync_in(ir, NULL, maxp); 1032 1033 /* get receiver sensor setting */ 1034 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); 1035 mce_sync_in(ir, NULL, maxp); 1036} 1037 1038static struct input_dev *mceusb_init_input_dev(struct mceusb_dev *ir) 1039{ 1040 struct input_dev *idev; 1041 struct ir_dev_props *props; 1042 struct device *dev = ir->dev; 1043 const char *rc_map = RC_MAP_RC6_MCE; 1044 const char *name = "Media Center Ed. eHome Infrared Remote Transceiver"; 1045 int ret = -ENODEV; 1046 1047 idev = input_allocate_device(); 1048 if (!idev) { 1049 dev_err(dev, "remote input dev allocation failed\n"); 1050 goto idev_alloc_failed; 1051 } 1052 1053 ret = -ENOMEM; 1054 props = kzalloc(sizeof(struct ir_dev_props), GFP_KERNEL); 1055 if (!props) { 1056 dev_err(dev, "remote ir dev props allocation failed\n"); 1057 goto props_alloc_failed; 1058 } 1059 1060 if (mceusb_model[ir->model].name) 1061 name = mceusb_model[ir->model].name; 1062 1063 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", 1064 name, 1065 le16_to_cpu(ir->usbdev->descriptor.idVendor), 1066 le16_to_cpu(ir->usbdev->descriptor.idProduct)); 1067 1068 idev->name = ir->name; 1069 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); 1070 strlcat(ir->phys, "/input0", sizeof(ir->phys)); 1071 idev->phys = ir->phys; 1072 1073 props->priv = ir; 1074 props->driver_type = RC_DRIVER_IR_RAW; 1075 props->allowed_protos = IR_TYPE_ALL; 1076 props->timeout = MS_TO_NS(1000); 1077 if (!ir->flags.no_tx) { 1078 props->s_tx_mask = mceusb_set_tx_mask; 1079 props->s_tx_carrier = mceusb_set_tx_carrier; 1080 props->tx_ir = mceusb_tx_ir; 1081 } 1082 1083 ir->props = props; 1084 1085 usb_to_input_id(ir->usbdev, &idev->id); 1086 idev->dev.parent = ir->dev; 1087 1088 if (mceusb_model[ir->model].rc_map) 1089 rc_map = mceusb_model[ir->model].rc_map; 1090 1091 ret = ir_input_register(idev, rc_map, props, DRIVER_NAME); 1092 if (ret < 0) { 1093 dev_err(dev, "remote input device register failed\n"); 1094 goto irdev_failed; 1095 } 1096 1097 return idev; 1098 1099irdev_failed: 1100 kfree(props); 1101props_alloc_failed: 1102 input_free_device(idev); 1103idev_alloc_failed: 1104 return NULL; 1105} 1106 1107static int __devinit mceusb_dev_probe(struct usb_interface *intf, 1108 const struct usb_device_id *id) 1109{ 1110 struct usb_device *dev = interface_to_usbdev(intf); 1111 struct usb_host_interface *idesc; 1112 struct usb_endpoint_descriptor *ep = NULL; 1113 struct usb_endpoint_descriptor *ep_in = NULL; 1114 struct usb_endpoint_descriptor *ep_out = NULL; 1115 struct mceusb_dev *ir = NULL; 1116 int pipe, maxp, i; 1117 char buf[63], name[128] = ""; 1118 enum mceusb_model_type model = id->driver_info; 1119 bool is_gen3; 1120 bool is_microsoft_gen1; 1121 bool tx_mask_normal; 1122 bool is_polaris; 1123 1124 dev_dbg(&intf->dev, "%s called\n", __func__); 1125 1126 idesc = intf->cur_altsetting; 1127 1128 is_gen3 = mceusb_model[model].mce_gen3; 1129 is_microsoft_gen1 = mceusb_model[model].mce_gen1; 1130 tx_mask_normal = mceusb_model[model].tx_mask_normal; 1131 is_polaris = mceusb_model[model].is_polaris; 1132 1133 if (is_polaris) { 1134 /* Interface 0 is IR */ 1135 if (idesc->desc.bInterfaceNumber) 1136 return -ENODEV; 1137 } 1138 1139 /* step through the endpoints to find first bulk in and out endpoint */ 1140 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { 1141 ep = &idesc->endpoint[i].desc; 1142 1143 if ((ep_in == NULL) 1144 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1145 == USB_DIR_IN) 1146 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1147 == USB_ENDPOINT_XFER_BULK) 1148 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1149 == USB_ENDPOINT_XFER_INT))) { 1150 1151 ep_in = ep; 1152 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT; 1153 ep_in->bInterval = 1; 1154 dev_dbg(&intf->dev, "acceptable inbound endpoint " 1155 "found\n"); 1156 } 1157 1158 if ((ep_out == NULL) 1159 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1160 == USB_DIR_OUT) 1161 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1162 == USB_ENDPOINT_XFER_BULK) 1163 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1164 == USB_ENDPOINT_XFER_INT))) { 1165 1166 ep_out = ep; 1167 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT; 1168 ep_out->bInterval = 1; 1169 dev_dbg(&intf->dev, "acceptable outbound endpoint " 1170 "found\n"); 1171 } 1172 } 1173 if (ep_in == NULL) { 1174 dev_dbg(&intf->dev, "inbound and/or endpoint not found\n"); 1175 return -ENODEV; 1176 } 1177 1178 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); 1179 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 1180 1181 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); 1182 if (!ir) 1183 goto mem_alloc_fail; 1184 1185 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); 1186 if (!ir->buf_in) 1187 goto buf_in_alloc_fail; 1188 1189 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); 1190 if (!ir->urb_in) 1191 goto urb_in_alloc_fail; 1192 1193 ir->usbdev = dev; 1194 ir->dev = &intf->dev; 1195 ir->len_in = maxp; 1196 ir->flags.microsoft_gen1 = is_microsoft_gen1; 1197 ir->flags.tx_mask_normal = tx_mask_normal; 1198 ir->flags.no_tx = mceusb_model[model].no_tx; 1199 ir->model = model; 1200 1201 /* Saving usb interface data for use by the transmitter routine */ 1202 ir->usb_ep_in = ep_in; 1203 ir->usb_ep_out = ep_out; 1204 1205 if (dev->descriptor.iManufacturer 1206 && usb_string(dev, dev->descriptor.iManufacturer, 1207 buf, sizeof(buf)) > 0) 1208 strlcpy(name, buf, sizeof(name)); 1209 if (dev->descriptor.iProduct 1210 && usb_string(dev, dev->descriptor.iProduct, 1211 buf, sizeof(buf)) > 0) 1212 snprintf(name + strlen(name), sizeof(name) - strlen(name), 1213 " %s", buf); 1214 1215 ir->idev = mceusb_init_input_dev(ir); 1216 if (!ir->idev) 1217 goto input_dev_fail; 1218 1219 /* flush buffers on the device */ 1220 mce_sync_in(ir, NULL, maxp); 1221 mce_sync_in(ir, NULL, maxp); 1222 1223 /* wire up inbound data handler */ 1224 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, 1225 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval); 1226 ir->urb_in->transfer_dma = ir->dma_in; 1227 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1228 1229 /* initialize device */ 1230 if (ir->flags.microsoft_gen1) 1231 mceusb_gen1_init(ir); 1232 else if (!is_gen3) 1233 mceusb_gen2_init(ir); 1234 1235 mceusb_get_parameters(ir); 1236 1237 if (!ir->flags.no_tx) 1238 mceusb_set_tx_mask(ir, MCE_DEFAULT_TX_MASK); 1239 1240 usb_set_intfdata(intf, ir); 1241 1242 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name, 1243 dev->bus->busnum, dev->devnum); 1244 1245 return 0; 1246 1247 /* Error-handling path */ 1248input_dev_fail: 1249 usb_free_urb(ir->urb_in); 1250urb_in_alloc_fail: 1251 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); 1252buf_in_alloc_fail: 1253 kfree(ir); 1254mem_alloc_fail: 1255 dev_err(&intf->dev, "%s: device setup failed!\n", __func__); 1256 1257 return -ENOMEM; 1258} 1259 1260 1261static void __devexit mceusb_dev_disconnect(struct usb_interface *intf) 1262{ 1263 struct usb_device *dev = interface_to_usbdev(intf); 1264 struct mceusb_dev *ir = usb_get_intfdata(intf); 1265 1266 usb_set_intfdata(intf, NULL); 1267 1268 if (!ir) 1269 return; 1270 1271 ir->usbdev = NULL; 1272 ir_input_unregister(ir->idev); 1273 usb_kill_urb(ir->urb_in); 1274 usb_free_urb(ir->urb_in); 1275 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); 1276 1277 kfree(ir); 1278} 1279 1280static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) 1281{ 1282 struct mceusb_dev *ir = usb_get_intfdata(intf); 1283 dev_info(ir->dev, "suspend\n"); 1284 usb_kill_urb(ir->urb_in); 1285 return 0; 1286} 1287 1288static int mceusb_dev_resume(struct usb_interface *intf) 1289{ 1290 struct mceusb_dev *ir = usb_get_intfdata(intf); 1291 dev_info(ir->dev, "resume\n"); 1292 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) 1293 return -EIO; 1294 return 0; 1295} 1296 1297static struct usb_driver mceusb_dev_driver = { 1298 .name = DRIVER_NAME, 1299 .probe = mceusb_dev_probe, 1300 .disconnect = mceusb_dev_disconnect, 1301 .suspend = mceusb_dev_suspend, 1302 .resume = mceusb_dev_resume, 1303 .reset_resume = mceusb_dev_resume, 1304 .id_table = mceusb_dev_table 1305}; 1306 1307static int __init mceusb_dev_init(void) 1308{ 1309 int ret; 1310 1311 ret = usb_register(&mceusb_dev_driver); 1312 if (ret < 0) 1313 printk(KERN_ERR DRIVER_NAME 1314 ": usb register failed, result = %d\n", ret); 1315 1316 return ret; 1317} 1318 1319static void __exit mceusb_dev_exit(void) 1320{ 1321 usb_deregister(&mceusb_dev_driver); 1322} 1323 1324module_init(mceusb_dev_init); 1325module_exit(mceusb_dev_exit); 1326 1327MODULE_DESCRIPTION(DRIVER_DESC); 1328MODULE_AUTHOR(DRIVER_AUTHOR); 1329MODULE_LICENSE("GPL"); 1330MODULE_DEVICE_TABLE(usb, mceusb_dev_table); 1331 1332module_param(debug, bool, S_IRUGO | S_IWUSR); 1333MODULE_PARM_DESC(debug, "Debug enabled or not"); 1334