1 /* 2 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers 3 * 4 * Copyright (c) 2010-2011, 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 * Updated in July of 2011 with the aid of Microsoft's official 19 * remote/transceiver requirements and specification document, found at 20 * download.microsoft.com, title 21 * Windows-Media-Center-RC-IR-Collection-Green-Button-Specification-03-08-2011-V2.pdf 22 * 23 * 24 * This program is free software; you can redistribute it and/or modify 25 * it under the terms of the GNU General Public License as published by 26 * the Free Software Foundation; either version 2 of the License, or 27 * (at your option) any later version. 28 * 29 * This program is distributed in the hope that it will be useful, 30 * but WITHOUT ANY WARRANTY; without even the implied warranty of 31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 32 * GNU General Public License for more details. 33 * 34 */ 35 36 #include <linux/device.h> 37 #include <linux/module.h> 38 #include <linux/slab.h> 39 #include <linux/workqueue.h> 40 #include <linux/usb.h> 41 #include <linux/usb/input.h> 42 #include <linux/pm_wakeup.h> 43 #include <media/rc-core.h> 44 45 #define DRIVER_VERSION "1.94" 46 #define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>" 47 #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ 48 "device driver" 49 #define DRIVER_NAME "mceusb" 50 51 #define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */ 52 #define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */ 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_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */ 62 #define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */ 63 #define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */ 64 #define MCE_PULSE_MASK 0x7f /* Pulse mask */ 65 #define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */ 66 67 /* 68 * The interface between the host and the IR hardware is command-response 69 * based. All commands and responses have a consistent format, where a lead 70 * byte always identifies the type of data following it. The lead byte has 71 * a port value in the 3 highest bits and a length value in the 5 lowest 72 * bits. 73 * 74 * The length field is overloaded, with a value of 11111 indicating that the 75 * following byte is a command or response code, and the length of the entire 76 * message is determined by the code. If the length field is not 11111, then 77 * it specifies the number of bytes of port data that follow. 78 */ 79 #define MCE_CMD 0x1f 80 #define MCE_PORT_IR 0x4 /* (0x4 << 5) | MCE_CMD = 0x9f */ 81 #define MCE_PORT_SYS 0x7 /* (0x7 << 5) | MCE_CMD = 0xff */ 82 #define MCE_PORT_SER 0x6 /* 0xc0 thru 0xdf flush & 0x1f bytes */ 83 #define MCE_PORT_MASK 0xe0 /* Mask out command bits */ 84 85 /* Command port headers */ 86 #define MCE_CMD_PORT_IR 0x9f /* IR-related cmd/rsp */ 87 #define MCE_CMD_PORT_SYS 0xff /* System (non-IR) device cmd/rsp */ 88 89 /* Commands that set device state (2-4 bytes in length) */ 90 #define MCE_CMD_RESET 0xfe /* Reset device, 2 bytes */ 91 #define MCE_CMD_RESUME 0xaa /* Resume device after error, 2 bytes */ 92 #define MCE_CMD_SETIRCFS 0x06 /* Set tx carrier, 4 bytes */ 93 #define MCE_CMD_SETIRTIMEOUT 0x0c /* Set timeout, 4 bytes */ 94 #define MCE_CMD_SETIRTXPORTS 0x08 /* Set tx ports, 3 bytes */ 95 #define MCE_CMD_SETIRRXPORTEN 0x14 /* Set rx ports, 3 bytes */ 96 #define MCE_CMD_FLASHLED 0x23 /* Flash receiver LED, 2 bytes */ 97 98 /* Commands that query device state (all 2 bytes, unless noted) */ 99 #define MCE_CMD_GETIRCFS 0x07 /* Get carrier */ 100 #define MCE_CMD_GETIRTIMEOUT 0x0d /* Get timeout */ 101 #define MCE_CMD_GETIRTXPORTS 0x13 /* Get tx ports */ 102 #define MCE_CMD_GETIRRXPORTEN 0x15 /* Get rx ports */ 103 #define MCE_CMD_GETPORTSTATUS 0x11 /* Get tx port status, 3 bytes */ 104 #define MCE_CMD_GETIRNUMPORTS 0x16 /* Get number of ports */ 105 #define MCE_CMD_GETWAKESOURCE 0x17 /* Get wake source */ 106 #define MCE_CMD_GETEMVER 0x22 /* Get emulator interface version */ 107 #define MCE_CMD_GETDEVDETAILS 0x21 /* Get device details (em ver2 only) */ 108 #define MCE_CMD_GETWAKESUPPORT 0x20 /* Get wake details (em ver2 only) */ 109 #define MCE_CMD_GETWAKEVERSION 0x18 /* Get wake pattern (em ver2 only) */ 110 111 /* Misc commands */ 112 #define MCE_CMD_NOP 0xff /* No operation */ 113 114 /* Responses to commands (non-error cases) */ 115 #define MCE_RSP_EQIRCFS 0x06 /* tx carrier, 4 bytes */ 116 #define MCE_RSP_EQIRTIMEOUT 0x0c /* rx timeout, 4 bytes */ 117 #define MCE_RSP_GETWAKESOURCE 0x17 /* wake source, 3 bytes */ 118 #define MCE_RSP_EQIRTXPORTS 0x08 /* tx port mask, 3 bytes */ 119 #define MCE_RSP_EQIRRXPORTEN 0x14 /* rx port mask, 3 bytes */ 120 #define MCE_RSP_GETPORTSTATUS 0x11 /* tx port status, 7 bytes */ 121 #define MCE_RSP_EQIRRXCFCNT 0x15 /* rx carrier count, 4 bytes */ 122 #define MCE_RSP_EQIRNUMPORTS 0x16 /* number of ports, 4 bytes */ 123 #define MCE_RSP_EQWAKESUPPORT 0x20 /* wake capabilities, 3 bytes */ 124 #define MCE_RSP_EQWAKEVERSION 0x18 /* wake pattern details, 6 bytes */ 125 #define MCE_RSP_EQDEVDETAILS 0x21 /* device capabilities, 3 bytes */ 126 #define MCE_RSP_EQEMVER 0x22 /* emulator interface ver, 3 bytes */ 127 #define MCE_RSP_FLASHLED 0x23 /* success flashing LED, 2 bytes */ 128 129 /* Responses to error cases, must send MCE_CMD_RESUME to clear them */ 130 #define MCE_RSP_CMD_ILLEGAL 0xfe /* illegal command for port, 2 bytes */ 131 #define MCE_RSP_TX_TIMEOUT 0x81 /* tx timed out, 2 bytes */ 132 133 /* Misc commands/responses not defined in the MCE remote/transceiver spec */ 134 #define MCE_CMD_SIG_END 0x01 /* End of signal */ 135 #define MCE_CMD_PING 0x03 /* Ping device */ 136 #define MCE_CMD_UNKNOWN 0x04 /* Unknown */ 137 #define MCE_CMD_UNKNOWN2 0x05 /* Unknown */ 138 #define MCE_CMD_UNKNOWN3 0x09 /* Unknown */ 139 #define MCE_CMD_UNKNOWN4 0x0a /* Unknown */ 140 #define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */ 141 #define MCE_CMD_UNKNOWN5 0x0e /* Unknown */ 142 #define MCE_CMD_UNKNOWN6 0x0f /* Unknown */ 143 #define MCE_CMD_UNKNOWN8 0x19 /* Unknown */ 144 #define MCE_CMD_UNKNOWN9 0x1b /* Unknown */ 145 #define MCE_CMD_NULL 0x00 /* These show up various places... */ 146 147 /* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR, 148 * then we're looking at a raw IR data sample */ 149 #define MCE_COMMAND_IRDATA 0x80 150 #define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */ 151 152 #define VENDOR_PHILIPS 0x0471 153 #define VENDOR_SMK 0x0609 154 #define VENDOR_TATUNG 0x1460 155 #define VENDOR_GATEWAY 0x107b 156 #define VENDOR_SHUTTLE 0x1308 157 #define VENDOR_SHUTTLE2 0x051c 158 #define VENDOR_MITSUMI 0x03ee 159 #define VENDOR_TOPSEED 0x1784 160 #define VENDOR_RICAVISION 0x179d 161 #define VENDOR_ITRON 0x195d 162 #define VENDOR_FIC 0x1509 163 #define VENDOR_LG 0x043e 164 #define VENDOR_MICROSOFT 0x045e 165 #define VENDOR_FORMOSA 0x147a 166 #define VENDOR_FINTEK 0x1934 167 #define VENDOR_PINNACLE 0x2304 168 #define VENDOR_ECS 0x1019 169 #define VENDOR_WISTRON 0x0fb8 170 #define VENDOR_COMPRO 0x185b 171 #define VENDOR_NORTHSTAR 0x04eb 172 #define VENDOR_REALTEK 0x0bda 173 #define VENDOR_TIVO 0x105a 174 #define VENDOR_CONEXANT 0x0572 175 #define VENDOR_TWISTEDMELON 0x2596 176 #define VENDOR_HAUPPAUGE 0x2040 177 #define VENDOR_PCTV 0x2013 178 #define VENDOR_ADAPTEC 0x03f3 179 180 enum mceusb_model_type { 181 MCE_GEN2 = 0, /* Most boards */ 182 MCE_GEN1, 183 MCE_GEN3, 184 MCE_GEN2_TX_INV, 185 MCE_GEN2_TX_INV_RX_GOOD, 186 POLARIS_EVK, 187 CX_HYBRID_TV, 188 MULTIFUNCTION, 189 TIVO_KIT, 190 MCE_GEN2_NO_TX, 191 HAUPPAUGE_CX_HYBRID_TV, 192 EVROMEDIA_FULL_HYBRID_FULLHD, 193 ASTROMETA_T2HYBRID, 194 }; 195 196 struct mceusb_model { 197 u32 mce_gen1:1; 198 u32 mce_gen2:1; 199 u32 mce_gen3:1; 200 u32 tx_mask_normal:1; 201 u32 no_tx:1; 202 /* 203 * 2nd IR receiver (short-range, wideband) for learning mode: 204 * 0, absent 2nd receiver (rx2) 205 * 1, rx2 present 206 * 2, rx2 which under counts IR carrier cycles 207 */ 208 u32 rx2; 209 210 int ir_intfnum; 211 212 const char *rc_map; /* Allow specify a per-board map */ 213 const char *name; /* per-board name */ 214 }; 215 216 static const struct mceusb_model mceusb_model[] = { 217 [MCE_GEN1] = { 218 .mce_gen1 = 1, 219 .tx_mask_normal = 1, 220 .rx2 = 2, 221 }, 222 [MCE_GEN2] = { 223 .mce_gen2 = 1, 224 .rx2 = 2, 225 }, 226 [MCE_GEN2_NO_TX] = { 227 .mce_gen2 = 1, 228 .no_tx = 1, 229 }, 230 [MCE_GEN2_TX_INV] = { 231 .mce_gen2 = 1, 232 .tx_mask_normal = 1, 233 .rx2 = 1, 234 }, 235 [MCE_GEN2_TX_INV_RX_GOOD] = { 236 .mce_gen2 = 1, 237 .tx_mask_normal = 1, 238 .rx2 = 2, 239 }, 240 [MCE_GEN3] = { 241 .mce_gen3 = 1, 242 .tx_mask_normal = 1, 243 .rx2 = 2, 244 }, 245 [POLARIS_EVK] = { 246 /* 247 * In fact, the EVK is shipped without 248 * remotes, but we should have something handy, 249 * to allow testing it 250 */ 251 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 252 .rx2 = 2, 253 }, 254 [CX_HYBRID_TV] = { 255 .no_tx = 1, /* tx isn't wired up at all */ 256 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 257 }, 258 [HAUPPAUGE_CX_HYBRID_TV] = { 259 .no_tx = 1, /* eeprom says it has no tx */ 260 .name = "Conexant Hybrid TV (cx231xx) MCE IR no TX", 261 }, 262 [MULTIFUNCTION] = { 263 .mce_gen2 = 1, 264 .ir_intfnum = 2, 265 .rx2 = 2, 266 }, 267 [TIVO_KIT] = { 268 .mce_gen2 = 1, 269 .rc_map = RC_MAP_TIVO, 270 .rx2 = 2, 271 }, 272 [EVROMEDIA_FULL_HYBRID_FULLHD] = { 273 .name = "Evromedia USB Full Hybrid Full HD", 274 .no_tx = 1, 275 .rc_map = RC_MAP_MSI_DIGIVOX_III, 276 }, 277 [ASTROMETA_T2HYBRID] = { 278 .name = "Astrometa T2Hybrid", 279 .no_tx = 1, 280 .rc_map = RC_MAP_ASTROMETA_T2HYBRID, 281 } 282 }; 283 284 static const struct usb_device_id mceusb_dev_table[] = { 285 /* Original Microsoft MCE IR Transceiver (often HP-branded) */ 286 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d), 287 .driver_info = MCE_GEN1 }, 288 /* Philips Infrared Transceiver - Sahara branded */ 289 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, 290 /* Philips Infrared Transceiver - HP branded */ 291 { USB_DEVICE(VENDOR_PHILIPS, 0x060c), 292 .driver_info = MCE_GEN2_TX_INV }, 293 /* Philips SRM5100 */ 294 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, 295 /* Philips Infrared Transceiver - Omaura */ 296 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, 297 /* Philips Infrared Transceiver - Spinel plus */ 298 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, 299 /* Philips eHome Infrared Transceiver */ 300 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, 301 /* Philips/Spinel plus IR transceiver for ASUS */ 302 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, 303 /* Philips/Spinel plus IR transceiver for ASUS */ 304 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, 305 /* Philips IR transceiver (Dell branded) */ 306 { USB_DEVICE(VENDOR_PHILIPS, 0x2093), 307 .driver_info = MCE_GEN2_TX_INV }, 308 /* Realtek MCE IR Receiver and card reader */ 309 { USB_DEVICE(VENDOR_REALTEK, 0x0161), 310 .driver_info = MULTIFUNCTION }, 311 /* SMK/Toshiba G83C0004D410 */ 312 { USB_DEVICE(VENDOR_SMK, 0x031d), 313 .driver_info = MCE_GEN2_TX_INV_RX_GOOD }, 314 /* SMK eHome Infrared Transceiver (Sony VAIO) */ 315 { USB_DEVICE(VENDOR_SMK, 0x0322), 316 .driver_info = MCE_GEN2_TX_INV }, 317 /* bundled with Hauppauge PVR-150 */ 318 { USB_DEVICE(VENDOR_SMK, 0x0334), 319 .driver_info = MCE_GEN2_TX_INV }, 320 /* SMK eHome Infrared Transceiver */ 321 { USB_DEVICE(VENDOR_SMK, 0x0338) }, 322 /* SMK/I-O Data GV-MC7/RCKIT Receiver */ 323 { USB_DEVICE(VENDOR_SMK, 0x0353), 324 .driver_info = MCE_GEN2_NO_TX }, 325 /* SMK RXX6000 Infrared Receiver */ 326 { USB_DEVICE(VENDOR_SMK, 0x0357), 327 .driver_info = MCE_GEN2_NO_TX }, 328 /* Tatung eHome Infrared Transceiver */ 329 { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, 330 /* Shuttle eHome Infrared Transceiver */ 331 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, 332 /* Shuttle eHome Infrared Transceiver */ 333 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, 334 /* Gateway eHome Infrared Transceiver */ 335 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, 336 /* Mitsumi */ 337 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, 338 /* Topseed eHome Infrared Transceiver */ 339 { USB_DEVICE(VENDOR_TOPSEED, 0x0001), 340 .driver_info = MCE_GEN2_TX_INV }, 341 /* Topseed HP eHome Infrared Transceiver */ 342 { USB_DEVICE(VENDOR_TOPSEED, 0x0006), 343 .driver_info = MCE_GEN2_TX_INV }, 344 /* Topseed eHome Infrared Transceiver */ 345 { USB_DEVICE(VENDOR_TOPSEED, 0x0007), 346 .driver_info = MCE_GEN2_TX_INV }, 347 /* Topseed eHome Infrared Transceiver */ 348 { USB_DEVICE(VENDOR_TOPSEED, 0x0008), 349 .driver_info = MCE_GEN3 }, 350 /* Topseed eHome Infrared Transceiver */ 351 { USB_DEVICE(VENDOR_TOPSEED, 0x000a), 352 .driver_info = MCE_GEN2_TX_INV }, 353 /* Topseed eHome Infrared Transceiver */ 354 { USB_DEVICE(VENDOR_TOPSEED, 0x0011), 355 .driver_info = MCE_GEN3 }, 356 /* Ricavision internal Infrared Transceiver */ 357 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, 358 /* Itron ione Libra Q-11 */ 359 { USB_DEVICE(VENDOR_ITRON, 0x7002) }, 360 /* FIC eHome Infrared Transceiver */ 361 { USB_DEVICE(VENDOR_FIC, 0x9242) }, 362 /* LG eHome Infrared Transceiver */ 363 { USB_DEVICE(VENDOR_LG, 0x9803) }, 364 /* Microsoft MCE Infrared Transceiver */ 365 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, 366 /* Formosa eHome Infrared Transceiver */ 367 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, 368 /* Formosa21 / eHome Infrared Receiver */ 369 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, 370 /* Formosa aim / Trust MCE Infrared Receiver */ 371 { USB_DEVICE(VENDOR_FORMOSA, 0xe017), 372 .driver_info = MCE_GEN2_NO_TX }, 373 /* Formosa Industrial Computing / Beanbag Emulation Device */ 374 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, 375 /* Formosa21 / eHome Infrared Receiver */ 376 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, 377 /* Formosa Industrial Computing AIM IR605/A */ 378 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, 379 /* Formosa Industrial Computing */ 380 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, 381 /* Formosa Industrial Computing */ 382 { USB_DEVICE(VENDOR_FORMOSA, 0xe042) }, 383 /* Fintek eHome Infrared Transceiver (HP branded) */ 384 { USB_DEVICE(VENDOR_FINTEK, 0x5168), 385 .driver_info = MCE_GEN2_TX_INV }, 386 /* Fintek eHome Infrared Transceiver */ 387 { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, 388 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ 389 { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, 390 /* Pinnacle Remote Kit */ 391 { USB_DEVICE(VENDOR_PINNACLE, 0x0225), 392 .driver_info = MCE_GEN3 }, 393 /* Elitegroup Computer Systems IR */ 394 { USB_DEVICE(VENDOR_ECS, 0x0f38) }, 395 /* Wistron Corp. eHome Infrared Receiver */ 396 { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, 397 /* Compro K100 */ 398 { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, 399 /* Compro K100 v2 */ 400 { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, 401 /* Northstar Systems, Inc. eHome Infrared Transceiver */ 402 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, 403 /* TiVo PC IR Receiver */ 404 { USB_DEVICE(VENDOR_TIVO, 0x2000), 405 .driver_info = TIVO_KIT }, 406 /* Conexant Hybrid TV "Shelby" Polaris SDK */ 407 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1), 408 .driver_info = POLARIS_EVK }, 409 /* Conexant Hybrid TV RDU253S Polaris */ 410 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5), 411 .driver_info = CX_HYBRID_TV }, 412 /* Twisted Melon Inc. - Manta Mini Receiver */ 413 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8008) }, 414 /* Twisted Melon Inc. - Manta Pico Receiver */ 415 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8016) }, 416 /* Twisted Melon Inc. - Manta Transceiver */ 417 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8042) }, 418 /* Hauppauge WINTV-HVR-HVR 930C-HD - based on cx231xx */ 419 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb130), 420 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 421 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb131), 422 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 423 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb138), 424 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 425 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb139), 426 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 427 { USB_DEVICE(VENDOR_PCTV, 0x0259), 428 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 429 { USB_DEVICE(VENDOR_PCTV, 0x025e), 430 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 431 /* Adaptec / HP eHome Receiver */ 432 { USB_DEVICE(VENDOR_ADAPTEC, 0x0094) }, 433 /* Evromedia USB Full Hybrid Full HD */ 434 { USB_DEVICE(0x1b80, 0xd3b2), 435 .driver_info = EVROMEDIA_FULL_HYBRID_FULLHD }, 436 /* Astrometa T2hybrid */ 437 { USB_DEVICE(0x15f4, 0x0135), 438 .driver_info = ASTROMETA_T2HYBRID }, 439 440 /* Terminating entry */ 441 { } 442 }; 443 444 /* data structure for each usb transceiver */ 445 struct mceusb_dev { 446 /* ir-core bits */ 447 struct rc_dev *rc; 448 449 /* optional features we can enable */ 450 bool carrier_report_enabled; 451 bool wideband_rx_enabled; /* aka learning mode, short-range rx */ 452 453 /* core device bits */ 454 struct device *dev; 455 456 /* usb */ 457 struct usb_device *usbdev; 458 struct urb *urb_in; 459 unsigned int pipe_in; 460 struct usb_endpoint_descriptor *usb_ep_out; 461 unsigned int pipe_out; 462 463 /* buffers and dma */ 464 unsigned char *buf_in; 465 unsigned int len_in; 466 dma_addr_t dma_in; 467 468 enum { 469 CMD_HEADER = 0, 470 SUBCMD, 471 CMD_DATA, 472 PARSE_IRDATA, 473 } parser_state; 474 475 u8 cmd, rem; /* Remaining IR data bytes in packet */ 476 477 struct { 478 u32 connected:1; 479 u32 tx_mask_normal:1; 480 u32 microsoft_gen1:1; 481 u32 no_tx:1; 482 u32 rx2; 483 } flags; 484 485 /* transmit support */ 486 u32 carrier; 487 unsigned char tx_mask; 488 489 char name[128]; 490 char phys[64]; 491 enum mceusb_model_type model; 492 493 bool need_reset; /* flag to issue a device resume cmd */ 494 u8 emver; /* emulator interface version */ 495 u8 num_txports; /* number of transmit ports */ 496 u8 num_rxports; /* number of receive sensors */ 497 u8 txports_cabled; /* bitmask of transmitters with cable */ 498 u8 rxports_active; /* bitmask of active receive sensors */ 499 bool learning_active; /* wideband rx is active */ 500 501 /* receiver carrier frequency detection support */ 502 u32 pulse_tunit; /* IR pulse "on" cumulative time units */ 503 u32 pulse_count; /* pulse "on" count in measurement interval */ 504 505 /* 506 * support for async error handler mceusb_deferred_kevent() 507 * where usb_clear_halt(), usb_reset_configuration(), 508 * usb_reset_device(), etc. must be done in process context 509 */ 510 struct work_struct kevent; 511 unsigned long kevent_flags; 512 # define EVENT_TX_HALT 0 513 # define EVENT_RX_HALT 1 514 }; 515 516 /* MCE Device Command Strings, generally a port and command pair */ 517 static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS, 518 MCE_CMD_RESUME}; 519 static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION}; 520 static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER}; 521 static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION}; 522 static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED}; 523 static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2}; 524 static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS}; 525 static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT}; 526 static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS}; 527 static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS}; 528 static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN}; 529 /* sub in desired values in lower byte or bytes for full command */ 530 /* FIXME: make use of these for transmit. 531 static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, 532 MCE_CMD_SETIRCFS, 0x00, 0x00}; 533 static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00}; 534 static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, 535 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00}; 536 static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR, 537 MCE_RSP_EQIRRXPORTEN, 0x00}; 538 */ 539 540 static int mceusb_cmd_datasize(u8 cmd, u8 subcmd) 541 { 542 int datasize = 0; 543 544 switch (cmd) { 545 case MCE_CMD_NULL: 546 if (subcmd == MCE_CMD_PORT_SYS) 547 datasize = 1; 548 break; 549 case MCE_CMD_PORT_SYS: 550 switch (subcmd) { 551 case MCE_RSP_GETPORTSTATUS: 552 datasize = 5; 553 break; 554 case MCE_RSP_EQWAKEVERSION: 555 datasize = 4; 556 break; 557 case MCE_CMD_G_REVISION: 558 datasize = 2; 559 break; 560 case MCE_RSP_EQWAKESUPPORT: 561 case MCE_RSP_GETWAKESOURCE: 562 case MCE_RSP_EQDEVDETAILS: 563 case MCE_RSP_EQEMVER: 564 datasize = 1; 565 break; 566 } 567 case MCE_CMD_PORT_IR: 568 switch (subcmd) { 569 case MCE_CMD_UNKNOWN: 570 case MCE_RSP_EQIRCFS: 571 case MCE_RSP_EQIRTIMEOUT: 572 case MCE_RSP_EQIRRXCFCNT: 573 case MCE_RSP_EQIRNUMPORTS: 574 datasize = 2; 575 break; 576 case MCE_CMD_SIG_END: 577 case MCE_RSP_EQIRTXPORTS: 578 case MCE_RSP_EQIRRXPORTEN: 579 datasize = 1; 580 break; 581 } 582 } 583 return datasize; 584 } 585 586 static void mceusb_dev_printdata(struct mceusb_dev *ir, u8 *buf, int buf_len, 587 int offset, int len, bool out) 588 { 589 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) 590 char *inout; 591 u8 cmd, subcmd, *data; 592 struct device *dev = ir->dev; 593 int start, skip = 0; 594 u32 carrier, period; 595 596 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 597 if (ir->flags.microsoft_gen1 && !out && !offset) 598 skip = 2; 599 600 if (len <= skip) 601 return; 602 603 dev_dbg(dev, "%cx data: %*ph (length=%d)", 604 (out ? 't' : 'r'), 605 min(len, buf_len - offset), buf + offset, len); 606 607 inout = out ? "Request" : "Got"; 608 609 start = offset + skip; 610 cmd = buf[start] & 0xff; 611 subcmd = buf[start + 1] & 0xff; 612 data = buf + start + 2; 613 614 switch (cmd) { 615 case MCE_CMD_NULL: 616 if (subcmd == MCE_CMD_NULL) 617 break; 618 if ((subcmd == MCE_CMD_PORT_SYS) && 619 (data[0] == MCE_CMD_RESUME)) 620 dev_dbg(dev, "Device resume requested"); 621 else 622 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 623 cmd, subcmd); 624 break; 625 case MCE_CMD_PORT_SYS: 626 switch (subcmd) { 627 case MCE_RSP_EQEMVER: 628 if (!out) 629 dev_dbg(dev, "Emulator interface version %x", 630 data[0]); 631 break; 632 case MCE_CMD_G_REVISION: 633 if (len == 2) 634 dev_dbg(dev, "Get hw/sw rev?"); 635 else 636 dev_dbg(dev, "hw/sw rev %*ph", 637 4, &buf[start + 2]); 638 break; 639 case MCE_CMD_RESUME: 640 dev_dbg(dev, "Device resume requested"); 641 break; 642 case MCE_RSP_CMD_ILLEGAL: 643 dev_dbg(dev, "Illegal PORT_SYS command"); 644 break; 645 case MCE_RSP_EQWAKEVERSION: 646 if (!out) 647 dev_dbg(dev, "Wake version, proto: 0x%02x, payload: 0x%02x, address: 0x%02x, version: 0x%02x", 648 data[0], data[1], data[2], data[3]); 649 break; 650 case MCE_RSP_GETPORTSTATUS: 651 if (!out) 652 /* We use data1 + 1 here, to match hw labels */ 653 dev_dbg(dev, "TX port %d: blaster is%s connected", 654 data[0] + 1, data[3] ? " not" : ""); 655 break; 656 case MCE_CMD_FLASHLED: 657 dev_dbg(dev, "Attempting to flash LED"); 658 break; 659 default: 660 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 661 cmd, subcmd); 662 break; 663 } 664 break; 665 case MCE_CMD_PORT_IR: 666 switch (subcmd) { 667 case MCE_CMD_SIG_END: 668 dev_dbg(dev, "End of signal"); 669 break; 670 case MCE_CMD_PING: 671 dev_dbg(dev, "Ping"); 672 break; 673 case MCE_CMD_UNKNOWN: 674 dev_dbg(dev, "Resp to 9f 05 of 0x%02x 0x%02x", 675 data[0], data[1]); 676 break; 677 case MCE_RSP_EQIRCFS: 678 period = DIV_ROUND_CLOSEST((1U << data[0] * 2) * 679 (data[1] + 1), 10); 680 if (!period) 681 break; 682 carrier = (1000 * 1000) / period; 683 dev_dbg(dev, "%s carrier of %u Hz (period %uus)", 684 inout, carrier, period); 685 break; 686 case MCE_CMD_GETIRCFS: 687 dev_dbg(dev, "Get carrier mode and freq"); 688 break; 689 case MCE_RSP_EQIRTXPORTS: 690 dev_dbg(dev, "%s transmit blaster mask of 0x%02x", 691 inout, data[0]); 692 break; 693 case MCE_RSP_EQIRTIMEOUT: 694 /* value is in units of 50us, so x*50/1000 ms */ 695 period = ((data[0] << 8) | data[1]) * 696 MCE_TIME_UNIT / 1000; 697 dev_dbg(dev, "%s receive timeout of %d ms", 698 inout, period); 699 break; 700 case MCE_CMD_GETIRTIMEOUT: 701 dev_dbg(dev, "Get receive timeout"); 702 break; 703 case MCE_CMD_GETIRTXPORTS: 704 dev_dbg(dev, "Get transmit blaster mask"); 705 break; 706 case MCE_RSP_EQIRRXPORTEN: 707 dev_dbg(dev, "%s %s-range receive sensor in use", 708 inout, data[0] == 0x02 ? "short" : "long"); 709 break; 710 case MCE_CMD_GETIRRXPORTEN: 711 /* aka MCE_RSP_EQIRRXCFCNT */ 712 if (out) 713 dev_dbg(dev, "Get receive sensor"); 714 else 715 dev_dbg(dev, "RX carrier cycle count: %d", 716 ((data[0] << 8) | data[1])); 717 break; 718 case MCE_RSP_EQIRNUMPORTS: 719 if (out) 720 break; 721 dev_dbg(dev, "Num TX ports: %x, num RX ports: %x", 722 data[0], data[1]); 723 break; 724 case MCE_RSP_CMD_ILLEGAL: 725 dev_dbg(dev, "Illegal PORT_IR command"); 726 break; 727 default: 728 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 729 cmd, subcmd); 730 break; 731 } 732 break; 733 default: 734 break; 735 } 736 737 if (cmd == MCE_IRDATA_TRAILER) 738 dev_dbg(dev, "End of raw IR data"); 739 else if ((cmd != MCE_CMD_PORT_IR) && 740 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA)) 741 dev_dbg(dev, "Raw IR data, %d pulse/space samples", ir->rem); 742 #endif 743 } 744 745 /* 746 * Schedule work that can't be done in interrupt handlers 747 * (mceusb_dev_recv() and mce_async_callback()) nor tasklets. 748 * Invokes mceusb_deferred_kevent() for recovering from 749 * error events specified by the kevent bit field. 750 */ 751 static void mceusb_defer_kevent(struct mceusb_dev *ir, int kevent) 752 { 753 set_bit(kevent, &ir->kevent_flags); 754 if (!schedule_work(&ir->kevent)) 755 dev_err(ir->dev, "kevent %d may have been dropped", kevent); 756 else 757 dev_dbg(ir->dev, "kevent %d scheduled", kevent); 758 } 759 760 static void mce_async_callback(struct urb *urb) 761 { 762 struct mceusb_dev *ir; 763 int len; 764 765 if (!urb) 766 return; 767 768 ir = urb->context; 769 770 switch (urb->status) { 771 /* success */ 772 case 0: 773 len = urb->actual_length; 774 775 mceusb_dev_printdata(ir, urb->transfer_buffer, len, 776 0, len, true); 777 break; 778 779 case -ECONNRESET: 780 case -ENOENT: 781 case -EILSEQ: 782 case -ESHUTDOWN: 783 break; 784 785 case -EPIPE: 786 dev_err(ir->dev, "Error: request urb status = %d (TX HALT)", 787 urb->status); 788 mceusb_defer_kevent(ir, EVENT_TX_HALT); 789 break; 790 791 default: 792 dev_err(ir->dev, "Error: request urb status = %d", urb->status); 793 break; 794 } 795 796 /* the transfer buffer and urb were allocated in mce_request_packet */ 797 kfree(urb->transfer_buffer); 798 usb_free_urb(urb); 799 } 800 801 /* request outgoing (send) usb packet - used to initialize remote */ 802 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data, 803 int size) 804 { 805 int res; 806 struct urb *async_urb; 807 struct device *dev = ir->dev; 808 unsigned char *async_buf; 809 810 async_urb = usb_alloc_urb(0, GFP_KERNEL); 811 if (unlikely(!async_urb)) { 812 dev_err(dev, "Error, couldn't allocate urb!"); 813 return; 814 } 815 816 async_buf = kmalloc(size, GFP_KERNEL); 817 if (!async_buf) { 818 usb_free_urb(async_urb); 819 return; 820 } 821 822 /* outbound data */ 823 if (usb_endpoint_xfer_int(ir->usb_ep_out)) 824 usb_fill_int_urb(async_urb, ir->usbdev, ir->pipe_out, 825 async_buf, size, mce_async_callback, ir, 826 ir->usb_ep_out->bInterval); 827 else 828 usb_fill_bulk_urb(async_urb, ir->usbdev, ir->pipe_out, 829 async_buf, size, mce_async_callback, ir); 830 831 memcpy(async_buf, data, size); 832 833 dev_dbg(dev, "send request called (size=%#x)", size); 834 835 res = usb_submit_urb(async_urb, GFP_ATOMIC); 836 if (res) { 837 dev_err(dev, "send request FAILED! (res=%d)", res); 838 kfree(async_buf); 839 usb_free_urb(async_urb); 840 return; 841 } 842 dev_dbg(dev, "send request complete (res=%d)", res); 843 } 844 845 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) 846 { 847 int rsize = sizeof(DEVICE_RESUME); 848 849 if (ir->need_reset) { 850 ir->need_reset = false; 851 mce_request_packet(ir, DEVICE_RESUME, rsize); 852 msleep(10); 853 } 854 855 mce_request_packet(ir, data, size); 856 msleep(10); 857 } 858 859 /* Send data out the IR blaster port(s) */ 860 static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count) 861 { 862 struct mceusb_dev *ir = dev->priv; 863 int i, length, ret = 0; 864 int cmdcount = 0; 865 unsigned char cmdbuf[MCE_CMDBUF_SIZE]; 866 867 /* MCE tx init header */ 868 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR; 869 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS; 870 cmdbuf[cmdcount++] = ir->tx_mask; 871 872 /* Send the set TX ports command */ 873 mce_async_out(ir, cmdbuf, cmdcount); 874 cmdcount = 0; 875 876 /* Generate mce packet data */ 877 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { 878 txbuf[i] = txbuf[i] / MCE_TIME_UNIT; 879 880 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ 881 882 /* Insert mce packet header every 4th entry */ 883 if ((cmdcount < MCE_CMDBUF_SIZE) && 884 (cmdcount % MCE_CODE_LENGTH) == 0) 885 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; 886 887 /* Insert mce packet data */ 888 if (cmdcount < MCE_CMDBUF_SIZE) 889 cmdbuf[cmdcount++] = 890 (txbuf[i] < MCE_PULSE_BIT ? 891 txbuf[i] : MCE_MAX_PULSE_LENGTH) | 892 (i & 1 ? 0x00 : MCE_PULSE_BIT); 893 else { 894 ret = -EINVAL; 895 goto out; 896 } 897 898 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && 899 (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); 900 } 901 902 /* Check if we have room for the empty packet at the end */ 903 if (cmdcount >= MCE_CMDBUF_SIZE) { 904 ret = -EINVAL; 905 goto out; 906 } 907 908 /* Fix packet length in last header */ 909 length = cmdcount % MCE_CODE_LENGTH; 910 cmdbuf[cmdcount - length] -= MCE_CODE_LENGTH - length; 911 912 /* All mce commands end with an empty packet (0x80) */ 913 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; 914 915 /* Transmit the command to the mce device */ 916 mce_async_out(ir, cmdbuf, cmdcount); 917 918 out: 919 return ret ? ret : count; 920 } 921 922 /* Sets active IR outputs -- mce devices typically have two */ 923 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) 924 { 925 struct mceusb_dev *ir = dev->priv; 926 927 /* return number of transmitters */ 928 int emitters = ir->num_txports ? ir->num_txports : 2; 929 930 if (mask >= (1 << emitters)) 931 return emitters; 932 933 if (ir->flags.tx_mask_normal) 934 ir->tx_mask = mask; 935 else 936 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? 937 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; 938 939 return 0; 940 } 941 942 /* Sets the send carrier frequency and mode */ 943 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier) 944 { 945 struct mceusb_dev *ir = dev->priv; 946 int clk = 10000000; 947 int prescaler = 0, divisor = 0; 948 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR, 949 MCE_CMD_SETIRCFS, 0x00, 0x00 }; 950 951 /* Carrier has changed */ 952 if (ir->carrier != carrier) { 953 954 if (carrier == 0) { 955 ir->carrier = carrier; 956 cmdbuf[2] = MCE_CMD_SIG_END; 957 cmdbuf[3] = MCE_IRDATA_TRAILER; 958 dev_dbg(ir->dev, "disabling carrier modulation"); 959 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 960 return 0; 961 } 962 963 for (prescaler = 0; prescaler < 4; ++prescaler) { 964 divisor = (clk >> (2 * prescaler)) / carrier; 965 if (divisor <= 0xff) { 966 ir->carrier = carrier; 967 cmdbuf[2] = prescaler; 968 cmdbuf[3] = divisor; 969 dev_dbg(ir->dev, "requesting %u HZ carrier", 970 carrier); 971 972 /* Transmit new carrier to mce device */ 973 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 974 return 0; 975 } 976 } 977 978 return -EINVAL; 979 980 } 981 982 return 0; 983 } 984 985 /* 986 * Select or deselect the 2nd receiver port. 987 * Second receiver is learning mode, wide-band, short-range receiver. 988 * Only one receiver (long or short range) may be active at a time. 989 */ 990 static int mceusb_set_rx_wideband(struct rc_dev *dev, int enable) 991 { 992 struct mceusb_dev *ir = dev->priv; 993 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR, 994 MCE_CMD_SETIRRXPORTEN, 0x00 }; 995 996 dev_dbg(ir->dev, "select %s-range receive sensor", 997 enable ? "short" : "long"); 998 if (enable) { 999 ir->wideband_rx_enabled = true; 1000 cmdbuf[2] = 2; /* port 2 is short range receiver */ 1001 } else { 1002 ir->wideband_rx_enabled = false; 1003 cmdbuf[2] = 1; /* port 1 is long range receiver */ 1004 } 1005 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1006 /* response from device sets ir->learning_active */ 1007 1008 return 0; 1009 } 1010 1011 /* 1012 * Enable/disable receiver carrier frequency pass through reporting. 1013 * Only the short-range receiver has carrier frequency measuring capability. 1014 * Implicitly select this receiver when enabling carrier frequency reporting. 1015 */ 1016 static int mceusb_set_rx_carrier_report(struct rc_dev *dev, int enable) 1017 { 1018 struct mceusb_dev *ir = dev->priv; 1019 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR, 1020 MCE_CMD_SETIRRXPORTEN, 0x00 }; 1021 1022 dev_dbg(ir->dev, "%s short-range receiver carrier reporting", 1023 enable ? "enable" : "disable"); 1024 if (enable) { 1025 ir->carrier_report_enabled = true; 1026 if (!ir->learning_active) { 1027 cmdbuf[2] = 2; /* port 2 is short range receiver */ 1028 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1029 } 1030 } else { 1031 ir->carrier_report_enabled = false; 1032 /* 1033 * Revert to normal (long-range) receiver only if the 1034 * wideband (short-range) receiver wasn't explicitly 1035 * enabled. 1036 */ 1037 if (ir->learning_active && !ir->wideband_rx_enabled) { 1038 cmdbuf[2] = 1; /* port 1 is long range receiver */ 1039 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1040 } 1041 } 1042 1043 return 0; 1044 } 1045 1046 /* 1047 * We don't do anything but print debug spew for many of the command bits 1048 * we receive from the hardware, but some of them are useful information 1049 * we want to store so that we can use them. 1050 */ 1051 static void mceusb_handle_command(struct mceusb_dev *ir, int index) 1052 { 1053 DEFINE_IR_RAW_EVENT(rawir); 1054 u8 hi = ir->buf_in[index + 1] & 0xff; 1055 u8 lo = ir->buf_in[index + 2] & 0xff; 1056 u32 carrier_cycles; 1057 u32 cycles_fix; 1058 1059 switch (ir->buf_in[index]) { 1060 /* the one and only 5-byte return value command */ 1061 case MCE_RSP_GETPORTSTATUS: 1062 if ((ir->buf_in[index + 4] & 0xff) == 0x00) 1063 ir->txports_cabled |= 1 << hi; 1064 break; 1065 1066 /* 2-byte return value commands */ 1067 case MCE_RSP_EQIRTIMEOUT: 1068 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT); 1069 break; 1070 case MCE_RSP_EQIRNUMPORTS: 1071 ir->num_txports = hi; 1072 ir->num_rxports = lo; 1073 break; 1074 case MCE_RSP_EQIRRXCFCNT: 1075 /* 1076 * The carrier cycle counter can overflow and wrap around 1077 * without notice from the device. So frequency measurement 1078 * will be inaccurate with long duration IR. 1079 * 1080 * The long-range (non learning) receiver always reports 1081 * zero count so we always ignore its report. 1082 */ 1083 if (ir->carrier_report_enabled && ir->learning_active && 1084 ir->pulse_tunit > 0) { 1085 carrier_cycles = (hi << 8 | lo); 1086 /* 1087 * Adjust carrier cycle count by adding 1088 * 1 missed count per pulse "on" 1089 */ 1090 cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0; 1091 rawir.carrier_report = 1; 1092 rawir.carrier = (1000000u / MCE_TIME_UNIT) * 1093 (carrier_cycles + cycles_fix) / 1094 ir->pulse_tunit; 1095 dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = %u)", 1096 rawir.carrier, ir->pulse_count, carrier_cycles, 1097 ir->pulse_tunit, ir->flags.rx2); 1098 ir_raw_event_store(ir->rc, &rawir); 1099 } 1100 break; 1101 1102 /* 1-byte return value commands */ 1103 case MCE_RSP_EQEMVER: 1104 ir->emver = hi; 1105 break; 1106 case MCE_RSP_EQIRTXPORTS: 1107 ir->tx_mask = hi; 1108 break; 1109 case MCE_RSP_EQIRRXPORTEN: 1110 ir->learning_active = ((hi & 0x02) == 0x02); 1111 if (ir->rxports_active != hi) { 1112 dev_info(ir->dev, "%s-range (0x%x) receiver active", 1113 ir->learning_active ? "short" : "long", hi); 1114 ir->rxports_active = hi; 1115 } 1116 break; 1117 case MCE_RSP_CMD_ILLEGAL: 1118 ir->need_reset = true; 1119 break; 1120 default: 1121 break; 1122 } 1123 } 1124 1125 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) 1126 { 1127 DEFINE_IR_RAW_EVENT(rawir); 1128 bool event = false; 1129 int i = 0; 1130 1131 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 1132 if (ir->flags.microsoft_gen1) 1133 i = 2; 1134 1135 /* if there's no data, just return now */ 1136 if (buf_len <= i) 1137 return; 1138 1139 for (; i < buf_len; i++) { 1140 switch (ir->parser_state) { 1141 case SUBCMD: 1142 ir->rem = mceusb_cmd_datasize(ir->cmd, ir->buf_in[i]); 1143 mceusb_dev_printdata(ir, ir->buf_in, buf_len, i - 1, 1144 ir->rem + 2, false); 1145 mceusb_handle_command(ir, i); 1146 ir->parser_state = CMD_DATA; 1147 break; 1148 case PARSE_IRDATA: 1149 ir->rem--; 1150 init_ir_raw_event(&rawir); 1151 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); 1152 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK); 1153 if (rawir.pulse) { 1154 ir->pulse_tunit += rawir.duration; 1155 ir->pulse_count++; 1156 } 1157 rawir.duration *= US_TO_NS(MCE_TIME_UNIT); 1158 1159 dev_dbg(ir->dev, "Storing %s %u ns (%02x)", 1160 rawir.pulse ? "pulse" : "space", 1161 rawir.duration, ir->buf_in[i]); 1162 1163 if (ir_raw_event_store_with_filter(ir->rc, &rawir)) 1164 event = true; 1165 break; 1166 case CMD_DATA: 1167 ir->rem--; 1168 break; 1169 case CMD_HEADER: 1170 /* decode mce packets of the form (84),AA,BB,CC,DD */ 1171 /* IR data packets can span USB messages - rem */ 1172 ir->cmd = ir->buf_in[i]; 1173 if ((ir->cmd == MCE_CMD_PORT_IR) || 1174 ((ir->cmd & MCE_PORT_MASK) != 1175 MCE_COMMAND_IRDATA)) { 1176 ir->parser_state = SUBCMD; 1177 continue; 1178 } 1179 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); 1180 mceusb_dev_printdata(ir, ir->buf_in, buf_len, 1181 i, ir->rem + 1, false); 1182 if (ir->rem) { 1183 ir->parser_state = PARSE_IRDATA; 1184 } else { 1185 ir_raw_event_reset(ir->rc); 1186 ir->pulse_tunit = 0; 1187 ir->pulse_count = 0; 1188 } 1189 break; 1190 } 1191 1192 if (ir->parser_state != CMD_HEADER && !ir->rem) 1193 ir->parser_state = CMD_HEADER; 1194 } 1195 if (event) { 1196 dev_dbg(ir->dev, "processed IR data"); 1197 ir_raw_event_handle(ir->rc); 1198 } 1199 } 1200 1201 static void mceusb_dev_recv(struct urb *urb) 1202 { 1203 struct mceusb_dev *ir; 1204 1205 if (!urb) 1206 return; 1207 1208 ir = urb->context; 1209 if (!ir) { 1210 usb_unlink_urb(urb); 1211 return; 1212 } 1213 1214 switch (urb->status) { 1215 /* success */ 1216 case 0: 1217 mceusb_process_ir_data(ir, urb->actual_length); 1218 break; 1219 1220 case -ECONNRESET: 1221 case -ENOENT: 1222 case -EILSEQ: 1223 case -ESHUTDOWN: 1224 usb_unlink_urb(urb); 1225 return; 1226 1227 case -EPIPE: 1228 dev_err(ir->dev, "Error: urb status = %d (RX HALT)", 1229 urb->status); 1230 mceusb_defer_kevent(ir, EVENT_RX_HALT); 1231 return; 1232 1233 default: 1234 dev_err(ir->dev, "Error: urb status = %d", urb->status); 1235 break; 1236 } 1237 1238 usb_submit_urb(urb, GFP_ATOMIC); 1239 } 1240 1241 static void mceusb_get_emulator_version(struct mceusb_dev *ir) 1242 { 1243 /* If we get no reply or an illegal command reply, its ver 1, says MS */ 1244 ir->emver = 1; 1245 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER)); 1246 } 1247 1248 static void mceusb_gen1_init(struct mceusb_dev *ir) 1249 { 1250 int ret; 1251 struct device *dev = ir->dev; 1252 char *data; 1253 1254 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); 1255 if (!data) { 1256 dev_err(dev, "%s: memory allocation failed!", __func__); 1257 return; 1258 } 1259 1260 /* 1261 * This is a strange one. Windows issues a set address to the device 1262 * on the receive control pipe and expect a certain value pair back 1263 */ 1264 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), 1265 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, 1266 data, USB_CTRL_MSG_SZ, HZ * 3); 1267 dev_dbg(dev, "set address - ret = %d", ret); 1268 dev_dbg(dev, "set address - data[0] = %d, data[1] = %d", 1269 data[0], data[1]); 1270 1271 /* set feature: bit rate 38400 bps */ 1272 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1273 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, 1274 0xc04e, 0x0000, NULL, 0, HZ * 3); 1275 1276 dev_dbg(dev, "set feature - ret = %d", ret); 1277 1278 /* bRequest 4: set char length to 8 bits */ 1279 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1280 4, USB_TYPE_VENDOR, 1281 0x0808, 0x0000, NULL, 0, HZ * 3); 1282 dev_dbg(dev, "set char length - retB = %d", ret); 1283 1284 /* bRequest 2: set handshaking to use DTR/DSR */ 1285 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1286 2, USB_TYPE_VENDOR, 1287 0x0000, 0x0100, NULL, 0, HZ * 3); 1288 dev_dbg(dev, "set handshake - retC = %d", ret); 1289 1290 /* device resume */ 1291 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1292 1293 /* get hw/sw revision? */ 1294 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1295 1296 kfree(data); 1297 } 1298 1299 static void mceusb_gen2_init(struct mceusb_dev *ir) 1300 { 1301 /* device resume */ 1302 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1303 1304 /* get wake version (protocol, key, address) */ 1305 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION)); 1306 1307 /* unknown what this one actually returns... */ 1308 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); 1309 } 1310 1311 static void mceusb_get_parameters(struct mceusb_dev *ir) 1312 { 1313 int i; 1314 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS, 1315 MCE_CMD_GETPORTSTATUS, 0x00 }; 1316 1317 /* defaults, if the hardware doesn't support querying */ 1318 ir->num_txports = 2; 1319 ir->num_rxports = 2; 1320 1321 /* get number of tx and rx ports */ 1322 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS)); 1323 1324 /* get the carrier and frequency */ 1325 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); 1326 1327 if (ir->num_txports && !ir->flags.no_tx) 1328 /* get the transmitter bitmask */ 1329 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); 1330 1331 /* get receiver timeout value */ 1332 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1333 1334 /* get receiver sensor setting */ 1335 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); 1336 1337 for (i = 0; i < ir->num_txports; i++) { 1338 cmdbuf[2] = i; 1339 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1340 } 1341 } 1342 1343 static void mceusb_flash_led(struct mceusb_dev *ir) 1344 { 1345 if (ir->emver < 2) 1346 return; 1347 1348 mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED)); 1349 } 1350 1351 /* 1352 * Workqueue function 1353 * for resetting or recovering device after occurrence of error events 1354 * specified in ir->kevent bit field. 1355 * Function runs (via schedule_work()) in non-interrupt context, for 1356 * calls here (such as usb_clear_halt()) requiring non-interrupt context. 1357 */ 1358 static void mceusb_deferred_kevent(struct work_struct *work) 1359 { 1360 struct mceusb_dev *ir = 1361 container_of(work, struct mceusb_dev, kevent); 1362 int status; 1363 1364 if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) { 1365 usb_unlink_urb(ir->urb_in); 1366 status = usb_clear_halt(ir->usbdev, ir->pipe_in); 1367 if (status < 0) { 1368 dev_err(ir->dev, "rx clear halt error %d", 1369 status); 1370 } 1371 clear_bit(EVENT_RX_HALT, &ir->kevent_flags); 1372 if (status == 0) { 1373 status = usb_submit_urb(ir->urb_in, GFP_KERNEL); 1374 if (status < 0) { 1375 dev_err(ir->dev, 1376 "rx unhalt submit urb error %d", 1377 status); 1378 } 1379 } 1380 } 1381 1382 if (test_bit(EVENT_TX_HALT, &ir->kevent_flags)) { 1383 status = usb_clear_halt(ir->usbdev, ir->pipe_out); 1384 if (status < 0) 1385 dev_err(ir->dev, "tx clear halt error %d", status); 1386 clear_bit(EVENT_TX_HALT, &ir->kevent_flags); 1387 } 1388 } 1389 1390 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) 1391 { 1392 struct usb_device *udev = ir->usbdev; 1393 struct device *dev = ir->dev; 1394 struct rc_dev *rc; 1395 int ret; 1396 1397 rc = rc_allocate_device(RC_DRIVER_IR_RAW); 1398 if (!rc) { 1399 dev_err(dev, "remote dev allocation failed"); 1400 goto out; 1401 } 1402 1403 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", 1404 mceusb_model[ir->model].name ? 1405 mceusb_model[ir->model].name : 1406 "Media Center Ed. eHome Infrared Remote Transceiver", 1407 le16_to_cpu(ir->usbdev->descriptor.idVendor), 1408 le16_to_cpu(ir->usbdev->descriptor.idProduct)); 1409 1410 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); 1411 1412 rc->device_name = ir->name; 1413 rc->input_phys = ir->phys; 1414 usb_to_input_id(ir->usbdev, &rc->input_id); 1415 rc->dev.parent = dev; 1416 rc->priv = ir; 1417 rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER; 1418 rc->timeout = MS_TO_NS(100); 1419 if (!ir->flags.no_tx) { 1420 rc->s_tx_mask = mceusb_set_tx_mask; 1421 rc->s_tx_carrier = mceusb_set_tx_carrier; 1422 rc->tx_ir = mceusb_tx_ir; 1423 } 1424 if (ir->flags.rx2 > 0) { 1425 rc->s_learning_mode = mceusb_set_rx_wideband; 1426 rc->s_carrier_report = mceusb_set_rx_carrier_report; 1427 } 1428 rc->driver_name = DRIVER_NAME; 1429 1430 switch (le16_to_cpu(udev->descriptor.idVendor)) { 1431 case VENDOR_HAUPPAUGE: 1432 rc->map_name = RC_MAP_HAUPPAUGE; 1433 break; 1434 case VENDOR_PCTV: 1435 rc->map_name = RC_MAP_PINNACLE_PCTV_HD; 1436 break; 1437 default: 1438 rc->map_name = RC_MAP_RC6_MCE; 1439 } 1440 if (mceusb_model[ir->model].rc_map) 1441 rc->map_name = mceusb_model[ir->model].rc_map; 1442 1443 ret = rc_register_device(rc); 1444 if (ret < 0) { 1445 dev_err(dev, "remote dev registration failed"); 1446 goto out; 1447 } 1448 1449 return rc; 1450 1451 out: 1452 rc_free_device(rc); 1453 return NULL; 1454 } 1455 1456 static int mceusb_dev_probe(struct usb_interface *intf, 1457 const struct usb_device_id *id) 1458 { 1459 struct usb_device *dev = interface_to_usbdev(intf); 1460 struct usb_host_interface *idesc; 1461 struct usb_endpoint_descriptor *ep = NULL; 1462 struct usb_endpoint_descriptor *ep_in = NULL; 1463 struct usb_endpoint_descriptor *ep_out = NULL; 1464 struct mceusb_dev *ir = NULL; 1465 int pipe, maxp, i, res; 1466 char buf[63], name[128] = ""; 1467 enum mceusb_model_type model = id->driver_info; 1468 bool is_gen3; 1469 bool is_microsoft_gen1; 1470 bool tx_mask_normal; 1471 int ir_intfnum; 1472 1473 dev_dbg(&intf->dev, "%s called", __func__); 1474 1475 idesc = intf->cur_altsetting; 1476 1477 is_gen3 = mceusb_model[model].mce_gen3; 1478 is_microsoft_gen1 = mceusb_model[model].mce_gen1; 1479 tx_mask_normal = mceusb_model[model].tx_mask_normal; 1480 ir_intfnum = mceusb_model[model].ir_intfnum; 1481 1482 /* There are multi-function devices with non-IR interfaces */ 1483 if (idesc->desc.bInterfaceNumber != ir_intfnum) 1484 return -ENODEV; 1485 1486 /* step through the endpoints to find first bulk in and out endpoint */ 1487 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { 1488 ep = &idesc->endpoint[i].desc; 1489 1490 if (ep_in == NULL) { 1491 if (usb_endpoint_is_bulk_in(ep)) { 1492 ep_in = ep; 1493 dev_dbg(&intf->dev, "acceptable bulk inbound endpoint found\n"); 1494 } else if (usb_endpoint_is_int_in(ep)) { 1495 ep_in = ep; 1496 ep_in->bInterval = 1; 1497 dev_dbg(&intf->dev, "acceptable interrupt inbound endpoint found\n"); 1498 } 1499 } 1500 1501 if (ep_out == NULL) { 1502 if (usb_endpoint_is_bulk_out(ep)) { 1503 ep_out = ep; 1504 dev_dbg(&intf->dev, "acceptable bulk outbound endpoint found\n"); 1505 } else if (usb_endpoint_is_int_out(ep)) { 1506 ep_out = ep; 1507 ep_out->bInterval = 1; 1508 dev_dbg(&intf->dev, "acceptable interrupt outbound endpoint found\n"); 1509 } 1510 } 1511 } 1512 if (!ep_in || !ep_out) { 1513 dev_dbg(&intf->dev, "required endpoints not found\n"); 1514 return -ENODEV; 1515 } 1516 1517 if (usb_endpoint_xfer_int(ep_in)) 1518 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); 1519 else 1520 pipe = usb_rcvbulkpipe(dev, ep_in->bEndpointAddress); 1521 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 1522 1523 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); 1524 if (!ir) 1525 goto mem_alloc_fail; 1526 1527 ir->pipe_in = pipe; 1528 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); 1529 if (!ir->buf_in) 1530 goto buf_in_alloc_fail; 1531 1532 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); 1533 if (!ir->urb_in) 1534 goto urb_in_alloc_fail; 1535 1536 ir->usbdev = usb_get_dev(dev); 1537 ir->dev = &intf->dev; 1538 ir->len_in = maxp; 1539 ir->flags.microsoft_gen1 = is_microsoft_gen1; 1540 ir->flags.tx_mask_normal = tx_mask_normal; 1541 ir->flags.no_tx = mceusb_model[model].no_tx; 1542 ir->flags.rx2 = mceusb_model[model].rx2; 1543 ir->model = model; 1544 1545 /* Saving usb interface data for use by the transmitter routine */ 1546 ir->usb_ep_out = ep_out; 1547 if (usb_endpoint_xfer_int(ep_out)) 1548 ir->pipe_out = usb_sndintpipe(ir->usbdev, 1549 ep_out->bEndpointAddress); 1550 else 1551 ir->pipe_out = usb_sndbulkpipe(ir->usbdev, 1552 ep_out->bEndpointAddress); 1553 1554 if (dev->descriptor.iManufacturer 1555 && usb_string(dev, dev->descriptor.iManufacturer, 1556 buf, sizeof(buf)) > 0) 1557 strlcpy(name, buf, sizeof(name)); 1558 if (dev->descriptor.iProduct 1559 && usb_string(dev, dev->descriptor.iProduct, 1560 buf, sizeof(buf)) > 0) 1561 snprintf(name + strlen(name), sizeof(name) - strlen(name), 1562 " %s", buf); 1563 1564 /* 1565 * Initialize async USB error handler before registering 1566 * or activating any mceusb RX and TX functions 1567 */ 1568 INIT_WORK(&ir->kevent, mceusb_deferred_kevent); 1569 1570 ir->rc = mceusb_init_rc_dev(ir); 1571 if (!ir->rc) 1572 goto rc_dev_fail; 1573 1574 /* wire up inbound data handler */ 1575 if (usb_endpoint_xfer_int(ep_in)) 1576 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, 1577 mceusb_dev_recv, ir, ep_in->bInterval); 1578 else 1579 usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, 1580 mceusb_dev_recv, ir); 1581 1582 ir->urb_in->transfer_dma = ir->dma_in; 1583 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1584 1585 /* flush buffers on the device */ 1586 dev_dbg(&intf->dev, "Flushing receive buffers"); 1587 res = usb_submit_urb(ir->urb_in, GFP_KERNEL); 1588 if (res) 1589 dev_err(&intf->dev, "failed to flush buffers: %d", res); 1590 1591 /* figure out which firmware/emulator version this hardware has */ 1592 mceusb_get_emulator_version(ir); 1593 1594 /* initialize device */ 1595 if (ir->flags.microsoft_gen1) 1596 mceusb_gen1_init(ir); 1597 else if (!is_gen3) 1598 mceusb_gen2_init(ir); 1599 1600 mceusb_get_parameters(ir); 1601 1602 mceusb_flash_led(ir); 1603 1604 if (!ir->flags.no_tx) 1605 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); 1606 1607 usb_set_intfdata(intf, ir); 1608 1609 /* enable wake via this device */ 1610 device_set_wakeup_capable(ir->dev, true); 1611 device_set_wakeup_enable(ir->dev, true); 1612 1613 dev_info(&intf->dev, "Registered %s with mce emulator interface version %x", 1614 name, ir->emver); 1615 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and %x rx sensors (0x%x active)", 1616 ir->num_txports, ir->txports_cabled, 1617 ir->num_rxports, ir->rxports_active); 1618 1619 return 0; 1620 1621 /* Error-handling path */ 1622 rc_dev_fail: 1623 cancel_work_sync(&ir->kevent); 1624 usb_put_dev(ir->usbdev); 1625 usb_kill_urb(ir->urb_in); 1626 usb_free_urb(ir->urb_in); 1627 urb_in_alloc_fail: 1628 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); 1629 buf_in_alloc_fail: 1630 kfree(ir); 1631 mem_alloc_fail: 1632 dev_err(&intf->dev, "%s: device setup failed!", __func__); 1633 1634 return -ENOMEM; 1635 } 1636 1637 1638 static void mceusb_dev_disconnect(struct usb_interface *intf) 1639 { 1640 struct usb_device *dev = interface_to_usbdev(intf); 1641 struct mceusb_dev *ir = usb_get_intfdata(intf); 1642 1643 usb_set_intfdata(intf, NULL); 1644 1645 if (!ir) 1646 return; 1647 1648 ir->usbdev = NULL; 1649 cancel_work_sync(&ir->kevent); 1650 rc_unregister_device(ir->rc); 1651 usb_kill_urb(ir->urb_in); 1652 usb_free_urb(ir->urb_in); 1653 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); 1654 usb_put_dev(dev); 1655 1656 kfree(ir); 1657 } 1658 1659 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) 1660 { 1661 struct mceusb_dev *ir = usb_get_intfdata(intf); 1662 dev_info(ir->dev, "suspend"); 1663 usb_kill_urb(ir->urb_in); 1664 return 0; 1665 } 1666 1667 static int mceusb_dev_resume(struct usb_interface *intf) 1668 { 1669 struct mceusb_dev *ir = usb_get_intfdata(intf); 1670 dev_info(ir->dev, "resume"); 1671 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) 1672 return -EIO; 1673 return 0; 1674 } 1675 1676 static struct usb_driver mceusb_dev_driver = { 1677 .name = DRIVER_NAME, 1678 .probe = mceusb_dev_probe, 1679 .disconnect = mceusb_dev_disconnect, 1680 .suspend = mceusb_dev_suspend, 1681 .resume = mceusb_dev_resume, 1682 .reset_resume = mceusb_dev_resume, 1683 .id_table = mceusb_dev_table 1684 }; 1685 1686 module_usb_driver(mceusb_dev_driver); 1687 1688 MODULE_DESCRIPTION(DRIVER_DESC); 1689 MODULE_AUTHOR(DRIVER_AUTHOR); 1690 MODULE_LICENSE("GPL"); 1691 MODULE_DEVICE_TABLE(usb, mceusb_dev_table); 1692