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