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 through 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_GEN3_BROKEN_IRTIMEOUT, 185 MCE_GEN2_TX_INV, 186 MCE_GEN2_TX_INV_RX_GOOD, 187 POLARIS_EVK, 188 CX_HYBRID_TV, 189 MULTIFUNCTION, 190 TIVO_KIT, 191 MCE_GEN2_NO_TX, 192 HAUPPAUGE_CX_HYBRID_TV, 193 EVROMEDIA_FULL_HYBRID_FULLHD, 194 ASTROMETA_T2HYBRID, 195 }; 196 197 struct mceusb_model { 198 u32 mce_gen1:1; 199 u32 mce_gen2:1; 200 u32 mce_gen3:1; 201 u32 tx_mask_normal:1; 202 u32 no_tx:1; 203 u32 broken_irtimeout:1; 204 /* 205 * 2nd IR receiver (short-range, wideband) for learning mode: 206 * 0, absent 2nd receiver (rx2) 207 * 1, rx2 present 208 * 2, rx2 which under counts IR carrier cycles 209 */ 210 u32 rx2; 211 212 int ir_intfnum; 213 214 const char *rc_map; /* Allow specify a per-board map */ 215 const char *name; /* per-board name */ 216 }; 217 218 static const struct mceusb_model mceusb_model[] = { 219 [MCE_GEN1] = { 220 .mce_gen1 = 1, 221 .tx_mask_normal = 1, 222 .rx2 = 2, 223 }, 224 [MCE_GEN2] = { 225 .mce_gen2 = 1, 226 .rx2 = 2, 227 }, 228 [MCE_GEN2_NO_TX] = { 229 .mce_gen2 = 1, 230 .no_tx = 1, 231 }, 232 [MCE_GEN2_TX_INV] = { 233 .mce_gen2 = 1, 234 .tx_mask_normal = 1, 235 .rx2 = 1, 236 }, 237 [MCE_GEN2_TX_INV_RX_GOOD] = { 238 .mce_gen2 = 1, 239 .tx_mask_normal = 1, 240 .rx2 = 2, 241 }, 242 [MCE_GEN3] = { 243 .mce_gen3 = 1, 244 .tx_mask_normal = 1, 245 .rx2 = 2, 246 }, 247 [MCE_GEN3_BROKEN_IRTIMEOUT] = { 248 .mce_gen3 = 1, 249 .tx_mask_normal = 1, 250 .rx2 = 2, 251 .broken_irtimeout = 1 252 }, 253 [POLARIS_EVK] = { 254 /* 255 * In fact, the EVK is shipped without 256 * remotes, but we should have something handy, 257 * to allow testing it 258 */ 259 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 260 .rx2 = 2, 261 }, 262 [CX_HYBRID_TV] = { 263 .no_tx = 1, /* tx isn't wired up at all */ 264 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 265 }, 266 [HAUPPAUGE_CX_HYBRID_TV] = { 267 .no_tx = 1, /* eeprom says it has no tx */ 268 .name = "Conexant Hybrid TV (cx231xx) MCE IR no TX", 269 }, 270 [MULTIFUNCTION] = { 271 .mce_gen2 = 1, 272 .ir_intfnum = 2, 273 .rx2 = 2, 274 }, 275 [TIVO_KIT] = { 276 .mce_gen2 = 1, 277 .rc_map = RC_MAP_TIVO, 278 .rx2 = 2, 279 }, 280 [EVROMEDIA_FULL_HYBRID_FULLHD] = { 281 .name = "Evromedia USB Full Hybrid Full HD", 282 .no_tx = 1, 283 .rc_map = RC_MAP_MSI_DIGIVOX_III, 284 }, 285 [ASTROMETA_T2HYBRID] = { 286 .name = "Astrometa T2Hybrid", 287 .no_tx = 1, 288 .rc_map = RC_MAP_ASTROMETA_T2HYBRID, 289 } 290 }; 291 292 static const struct usb_device_id mceusb_dev_table[] = { 293 /* Original Microsoft MCE IR Transceiver (often HP-branded) */ 294 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d), 295 .driver_info = MCE_GEN1 }, 296 /* Philips Infrared Transceiver - Sahara branded */ 297 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, 298 /* Philips Infrared Transceiver - HP branded */ 299 { USB_DEVICE(VENDOR_PHILIPS, 0x060c), 300 .driver_info = MCE_GEN2_TX_INV }, 301 /* Philips SRM5100 */ 302 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, 303 /* Philips Infrared Transceiver - Omaura */ 304 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, 305 /* Philips Infrared Transceiver - Spinel plus */ 306 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, 307 /* Philips eHome Infrared Transceiver */ 308 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, 309 /* Philips/Spinel plus IR transceiver for ASUS */ 310 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, 311 /* Philips/Spinel plus IR transceiver for ASUS */ 312 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, 313 /* Philips IR transceiver (Dell branded) */ 314 { USB_DEVICE(VENDOR_PHILIPS, 0x2093), 315 .driver_info = MCE_GEN2_TX_INV }, 316 /* Realtek MCE IR Receiver and card reader */ 317 { USB_DEVICE(VENDOR_REALTEK, 0x0161), 318 .driver_info = MULTIFUNCTION }, 319 /* SMK/Toshiba G83C0004D410 */ 320 { USB_DEVICE(VENDOR_SMK, 0x031d), 321 .driver_info = MCE_GEN2_TX_INV_RX_GOOD }, 322 /* SMK eHome Infrared Transceiver (Sony VAIO) */ 323 { USB_DEVICE(VENDOR_SMK, 0x0322), 324 .driver_info = MCE_GEN2_TX_INV }, 325 /* bundled with Hauppauge PVR-150 */ 326 { USB_DEVICE(VENDOR_SMK, 0x0334), 327 .driver_info = MCE_GEN2_TX_INV }, 328 /* SMK eHome Infrared Transceiver */ 329 { USB_DEVICE(VENDOR_SMK, 0x0338) }, 330 /* SMK/I-O Data GV-MC7/RCKIT Receiver */ 331 { USB_DEVICE(VENDOR_SMK, 0x0353), 332 .driver_info = MCE_GEN2_NO_TX }, 333 /* SMK RXX6000 Infrared Receiver */ 334 { USB_DEVICE(VENDOR_SMK, 0x0357), 335 .driver_info = MCE_GEN2_NO_TX }, 336 /* Tatung eHome Infrared Transceiver */ 337 { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, 338 /* Shuttle eHome Infrared Transceiver */ 339 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, 340 /* Shuttle eHome Infrared Transceiver */ 341 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, 342 /* Gateway eHome Infrared Transceiver */ 343 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, 344 /* Mitsumi */ 345 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, 346 /* Topseed eHome Infrared Transceiver */ 347 { USB_DEVICE(VENDOR_TOPSEED, 0x0001), 348 .driver_info = MCE_GEN2_TX_INV }, 349 /* Topseed HP eHome Infrared Transceiver */ 350 { USB_DEVICE(VENDOR_TOPSEED, 0x0006), 351 .driver_info = MCE_GEN2_TX_INV }, 352 /* Topseed eHome Infrared Transceiver */ 353 { USB_DEVICE(VENDOR_TOPSEED, 0x0007), 354 .driver_info = MCE_GEN2_TX_INV }, 355 /* Topseed eHome Infrared Transceiver */ 356 { USB_DEVICE(VENDOR_TOPSEED, 0x0008), 357 .driver_info = MCE_GEN3 }, 358 /* Topseed eHome Infrared Transceiver */ 359 { USB_DEVICE(VENDOR_TOPSEED, 0x000a), 360 .driver_info = MCE_GEN2_TX_INV }, 361 /* Topseed eHome Infrared Transceiver */ 362 { USB_DEVICE(VENDOR_TOPSEED, 0x0011), 363 .driver_info = MCE_GEN3_BROKEN_IRTIMEOUT }, 364 /* Ricavision internal Infrared Transceiver */ 365 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, 366 /* Itron ione Libra Q-11 */ 367 { USB_DEVICE(VENDOR_ITRON, 0x7002) }, 368 /* FIC eHome Infrared Transceiver */ 369 { USB_DEVICE(VENDOR_FIC, 0x9242) }, 370 /* LG eHome Infrared Transceiver */ 371 { USB_DEVICE(VENDOR_LG, 0x9803) }, 372 /* Microsoft MCE Infrared Transceiver */ 373 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, 374 /* Formosa eHome Infrared Transceiver */ 375 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, 376 /* Formosa21 / eHome Infrared Receiver */ 377 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, 378 /* Formosa aim / Trust MCE Infrared Receiver */ 379 { USB_DEVICE(VENDOR_FORMOSA, 0xe017), 380 .driver_info = MCE_GEN2_NO_TX }, 381 /* Formosa Industrial Computing / Beanbag Emulation Device */ 382 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, 383 /* Formosa21 / eHome Infrared Receiver */ 384 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, 385 /* Formosa Industrial Computing AIM IR605/A */ 386 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, 387 /* Formosa Industrial Computing */ 388 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, 389 /* Formosa Industrial Computing */ 390 { USB_DEVICE(VENDOR_FORMOSA, 0xe042) }, 391 /* Fintek eHome Infrared Transceiver (HP branded) */ 392 { USB_DEVICE(VENDOR_FINTEK, 0x5168), 393 .driver_info = MCE_GEN2_TX_INV }, 394 /* Fintek eHome Infrared Transceiver */ 395 { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, 396 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ 397 { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, 398 /* Pinnacle Remote Kit */ 399 { USB_DEVICE(VENDOR_PINNACLE, 0x0225), 400 .driver_info = MCE_GEN3 }, 401 /* Elitegroup Computer Systems IR */ 402 { USB_DEVICE(VENDOR_ECS, 0x0f38) }, 403 /* Wistron Corp. eHome Infrared Receiver */ 404 { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, 405 /* Compro K100 */ 406 { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, 407 /* Compro K100 v2 */ 408 { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, 409 /* Northstar Systems, Inc. eHome Infrared Transceiver */ 410 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, 411 /* TiVo PC IR Receiver */ 412 { USB_DEVICE(VENDOR_TIVO, 0x2000), 413 .driver_info = TIVO_KIT }, 414 /* Conexant Hybrid TV "Shelby" Polaris SDK */ 415 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1), 416 .driver_info = POLARIS_EVK }, 417 /* Conexant Hybrid TV RDU253S Polaris */ 418 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5), 419 .driver_info = CX_HYBRID_TV }, 420 /* Twisted Melon Inc. - Manta Mini Receiver */ 421 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8008) }, 422 /* Twisted Melon Inc. - Manta Pico Receiver */ 423 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8016) }, 424 /* Twisted Melon Inc. - Manta Transceiver */ 425 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8042) }, 426 /* Hauppauge WINTV-HVR-HVR 930C-HD - based on cx231xx */ 427 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb130), 428 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 429 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb131), 430 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 431 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb138), 432 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 433 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb139), 434 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 435 /* Hauppauge WinTV-HVR-935C - based on cx231xx */ 436 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb151), 437 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 438 /* Hauppauge WinTV-HVR-955Q - based on cx231xx */ 439 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb123), 440 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 441 /* Hauppauge WinTV-HVR-975 - based on cx231xx */ 442 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb150), 443 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 444 { USB_DEVICE(VENDOR_PCTV, 0x0259), 445 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 446 { USB_DEVICE(VENDOR_PCTV, 0x025e), 447 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 448 /* Adaptec / HP eHome Receiver */ 449 { USB_DEVICE(VENDOR_ADAPTEC, 0x0094) }, 450 /* Evromedia USB Full Hybrid Full HD */ 451 { USB_DEVICE(0x1b80, 0xd3b2), 452 .driver_info = EVROMEDIA_FULL_HYBRID_FULLHD }, 453 /* Astrometa T2hybrid */ 454 { USB_DEVICE(0x15f4, 0x0135), 455 .driver_info = ASTROMETA_T2HYBRID }, 456 457 /* Terminating entry */ 458 { } 459 }; 460 461 /* data structure for each usb transceiver */ 462 struct mceusb_dev { 463 /* ir-core bits */ 464 struct rc_dev *rc; 465 466 /* optional features we can enable */ 467 bool carrier_report_enabled; 468 bool wideband_rx_enabled; /* aka learning mode, short-range rx */ 469 470 /* core device bits */ 471 struct device *dev; 472 473 /* usb */ 474 struct usb_device *usbdev; 475 struct urb *urb_in; 476 unsigned int pipe_in; 477 struct usb_endpoint_descriptor *usb_ep_out; 478 unsigned int pipe_out; 479 480 /* buffers and dma */ 481 unsigned char *buf_in; 482 unsigned int len_in; 483 dma_addr_t dma_in; 484 485 enum { 486 CMD_HEADER = 0, 487 SUBCMD, 488 CMD_DATA, 489 PARSE_IRDATA, 490 } parser_state; 491 492 u8 cmd, rem; /* Remaining IR data bytes in packet */ 493 494 struct { 495 u32 connected:1; 496 u32 tx_mask_normal:1; 497 u32 microsoft_gen1:1; 498 u32 no_tx:1; 499 u32 rx2; 500 } flags; 501 502 /* transmit support */ 503 u32 carrier; 504 unsigned char tx_mask; 505 506 char name[128]; 507 char phys[64]; 508 enum mceusb_model_type model; 509 510 bool need_reset; /* flag to issue a device resume cmd */ 511 u8 emver; /* emulator interface version */ 512 u8 num_txports; /* number of transmit ports */ 513 u8 num_rxports; /* number of receive sensors */ 514 u8 txports_cabled; /* bitmask of transmitters with cable */ 515 u8 rxports_active; /* bitmask of active receive sensors */ 516 bool learning_active; /* wideband rx is active */ 517 518 /* receiver carrier frequency detection support */ 519 u32 pulse_tunit; /* IR pulse "on" cumulative time units */ 520 u32 pulse_count; /* pulse "on" count in measurement interval */ 521 522 /* 523 * support for async error handler mceusb_deferred_kevent() 524 * where usb_clear_halt(), usb_reset_configuration(), 525 * usb_reset_device(), etc. must be done in process context 526 */ 527 struct work_struct kevent; 528 unsigned long kevent_flags; 529 # define EVENT_TX_HALT 0 530 # define EVENT_RX_HALT 1 531 }; 532 533 /* MCE Device Command Strings, generally a port and command pair */ 534 static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS, 535 MCE_CMD_RESUME}; 536 static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION}; 537 static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER}; 538 static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION}; 539 static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED}; 540 static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2}; 541 static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS}; 542 static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT}; 543 static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS}; 544 static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS}; 545 static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN}; 546 /* sub in desired values in lower byte or bytes for full command */ 547 /* FIXME: make use of these for transmit. 548 static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, 549 MCE_CMD_SETIRCFS, 0x00, 0x00}; 550 static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00}; 551 static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, 552 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00}; 553 static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR, 554 MCE_RSP_EQIRRXPORTEN, 0x00}; 555 */ 556 557 static int mceusb_cmd_datasize(u8 cmd, u8 subcmd) 558 { 559 int datasize = 0; 560 561 switch (cmd) { 562 case MCE_CMD_NULL: 563 if (subcmd == MCE_CMD_PORT_SYS) 564 datasize = 1; 565 break; 566 case MCE_CMD_PORT_SYS: 567 switch (subcmd) { 568 case MCE_RSP_GETPORTSTATUS: 569 datasize = 5; 570 break; 571 case MCE_RSP_EQWAKEVERSION: 572 datasize = 4; 573 break; 574 case MCE_CMD_G_REVISION: 575 datasize = 2; 576 break; 577 case MCE_RSP_EQWAKESUPPORT: 578 case MCE_RSP_GETWAKESOURCE: 579 case MCE_RSP_EQDEVDETAILS: 580 case MCE_RSP_EQEMVER: 581 datasize = 1; 582 break; 583 } 584 break; 585 case MCE_CMD_PORT_IR: 586 switch (subcmd) { 587 case MCE_CMD_UNKNOWN: 588 case MCE_RSP_EQIRCFS: 589 case MCE_RSP_EQIRTIMEOUT: 590 case MCE_RSP_EQIRRXCFCNT: 591 case MCE_RSP_EQIRNUMPORTS: 592 datasize = 2; 593 break; 594 case MCE_CMD_SIG_END: 595 case MCE_RSP_EQIRTXPORTS: 596 case MCE_RSP_EQIRRXPORTEN: 597 datasize = 1; 598 break; 599 } 600 } 601 return datasize; 602 } 603 604 static void mceusb_dev_printdata(struct mceusb_dev *ir, u8 *buf, int buf_len, 605 int offset, int len, bool out) 606 { 607 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) 608 char *inout; 609 u8 cmd, subcmd, *data; 610 struct device *dev = ir->dev; 611 int start, skip = 0; 612 u32 carrier, period; 613 614 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 615 if (ir->flags.microsoft_gen1 && !out && !offset) 616 skip = 2; 617 618 if (len <= skip) 619 return; 620 621 dev_dbg(dev, "%cx data: %*ph (length=%d)", 622 (out ? 't' : 'r'), 623 min(len, buf_len - offset), buf + offset, len); 624 625 inout = out ? "Request" : "Got"; 626 627 start = offset + skip; 628 cmd = buf[start] & 0xff; 629 subcmd = buf[start + 1] & 0xff; 630 data = buf + start + 2; 631 632 switch (cmd) { 633 case MCE_CMD_NULL: 634 if (subcmd == MCE_CMD_NULL) 635 break; 636 if ((subcmd == MCE_CMD_PORT_SYS) && 637 (data[0] == MCE_CMD_RESUME)) 638 dev_dbg(dev, "Device resume requested"); 639 else 640 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 641 cmd, subcmd); 642 break; 643 case MCE_CMD_PORT_SYS: 644 switch (subcmd) { 645 case MCE_RSP_EQEMVER: 646 if (!out) 647 dev_dbg(dev, "Emulator interface version %x", 648 data[0]); 649 break; 650 case MCE_CMD_G_REVISION: 651 if (len == 2) 652 dev_dbg(dev, "Get hw/sw rev?"); 653 else 654 dev_dbg(dev, "hw/sw rev %*ph", 655 4, &buf[start + 2]); 656 break; 657 case MCE_CMD_RESUME: 658 dev_dbg(dev, "Device resume requested"); 659 break; 660 case MCE_RSP_CMD_ILLEGAL: 661 dev_dbg(dev, "Illegal PORT_SYS command"); 662 break; 663 case MCE_RSP_EQWAKEVERSION: 664 if (!out) 665 dev_dbg(dev, "Wake version, proto: 0x%02x, payload: 0x%02x, address: 0x%02x, version: 0x%02x", 666 data[0], data[1], data[2], data[3]); 667 break; 668 case MCE_RSP_GETPORTSTATUS: 669 if (!out) 670 /* We use data1 + 1 here, to match hw labels */ 671 dev_dbg(dev, "TX port %d: blaster is%s connected", 672 data[0] + 1, data[3] ? " not" : ""); 673 break; 674 case MCE_CMD_FLASHLED: 675 dev_dbg(dev, "Attempting to flash LED"); 676 break; 677 default: 678 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 679 cmd, subcmd); 680 break; 681 } 682 break; 683 case MCE_CMD_PORT_IR: 684 switch (subcmd) { 685 case MCE_CMD_SIG_END: 686 dev_dbg(dev, "End of signal"); 687 break; 688 case MCE_CMD_PING: 689 dev_dbg(dev, "Ping"); 690 break; 691 case MCE_CMD_UNKNOWN: 692 dev_dbg(dev, "Resp to 9f 05 of 0x%02x 0x%02x", 693 data[0], data[1]); 694 break; 695 case MCE_RSP_EQIRCFS: 696 period = DIV_ROUND_CLOSEST((1U << data[0] * 2) * 697 (data[1] + 1), 10); 698 if (!period) 699 break; 700 carrier = (1000 * 1000) / period; 701 dev_dbg(dev, "%s carrier of %u Hz (period %uus)", 702 inout, carrier, period); 703 break; 704 case MCE_CMD_GETIRCFS: 705 dev_dbg(dev, "Get carrier mode and freq"); 706 break; 707 case MCE_RSP_EQIRTXPORTS: 708 dev_dbg(dev, "%s transmit blaster mask of 0x%02x", 709 inout, data[0]); 710 break; 711 case MCE_RSP_EQIRTIMEOUT: 712 /* value is in units of 50us, so x*50/1000 ms */ 713 period = ((data[0] << 8) | data[1]) * 714 MCE_TIME_UNIT / 1000; 715 dev_dbg(dev, "%s receive timeout of %d ms", 716 inout, period); 717 break; 718 case MCE_CMD_GETIRTIMEOUT: 719 dev_dbg(dev, "Get receive timeout"); 720 break; 721 case MCE_CMD_GETIRTXPORTS: 722 dev_dbg(dev, "Get transmit blaster mask"); 723 break; 724 case MCE_RSP_EQIRRXPORTEN: 725 dev_dbg(dev, "%s %s-range receive sensor in use", 726 inout, data[0] == 0x02 ? "short" : "long"); 727 break; 728 case MCE_CMD_GETIRRXPORTEN: 729 /* aka MCE_RSP_EQIRRXCFCNT */ 730 if (out) 731 dev_dbg(dev, "Get receive sensor"); 732 else 733 dev_dbg(dev, "RX carrier cycle count: %d", 734 ((data[0] << 8) | data[1])); 735 break; 736 case MCE_RSP_EQIRNUMPORTS: 737 if (out) 738 break; 739 dev_dbg(dev, "Num TX ports: %x, num RX ports: %x", 740 data[0], data[1]); 741 break; 742 case MCE_RSP_CMD_ILLEGAL: 743 dev_dbg(dev, "Illegal PORT_IR command"); 744 break; 745 default: 746 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 747 cmd, subcmd); 748 break; 749 } 750 break; 751 default: 752 break; 753 } 754 755 if (cmd == MCE_IRDATA_TRAILER) 756 dev_dbg(dev, "End of raw IR data"); 757 else if ((cmd != MCE_CMD_PORT_IR) && 758 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA)) 759 dev_dbg(dev, "Raw IR data, %d pulse/space samples", ir->rem); 760 #endif 761 } 762 763 /* 764 * Schedule work that can't be done in interrupt handlers 765 * (mceusb_dev_recv() and mce_async_callback()) nor tasklets. 766 * Invokes mceusb_deferred_kevent() for recovering from 767 * error events specified by the kevent bit field. 768 */ 769 static void mceusb_defer_kevent(struct mceusb_dev *ir, int kevent) 770 { 771 set_bit(kevent, &ir->kevent_flags); 772 if (!schedule_work(&ir->kevent)) 773 dev_err(ir->dev, "kevent %d may have been dropped", kevent); 774 else 775 dev_dbg(ir->dev, "kevent %d scheduled", kevent); 776 } 777 778 static void mce_async_callback(struct urb *urb) 779 { 780 struct mceusb_dev *ir; 781 int len; 782 783 if (!urb) 784 return; 785 786 ir = urb->context; 787 788 switch (urb->status) { 789 /* success */ 790 case 0: 791 len = urb->actual_length; 792 793 mceusb_dev_printdata(ir, urb->transfer_buffer, len, 794 0, len, true); 795 break; 796 797 case -ECONNRESET: 798 case -ENOENT: 799 case -EILSEQ: 800 case -ESHUTDOWN: 801 break; 802 803 case -EPIPE: 804 dev_err(ir->dev, "Error: request urb status = %d (TX HALT)", 805 urb->status); 806 mceusb_defer_kevent(ir, EVENT_TX_HALT); 807 break; 808 809 default: 810 dev_err(ir->dev, "Error: request urb status = %d", urb->status); 811 break; 812 } 813 814 /* the transfer buffer and urb were allocated in mce_request_packet */ 815 kfree(urb->transfer_buffer); 816 usb_free_urb(urb); 817 } 818 819 /* request outgoing (send) usb packet - used to initialize remote */ 820 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data, 821 int size) 822 { 823 int res; 824 struct urb *async_urb; 825 struct device *dev = ir->dev; 826 unsigned char *async_buf; 827 828 async_urb = usb_alloc_urb(0, GFP_KERNEL); 829 if (unlikely(!async_urb)) { 830 dev_err(dev, "Error, couldn't allocate urb!"); 831 return; 832 } 833 834 async_buf = kmalloc(size, GFP_KERNEL); 835 if (!async_buf) { 836 usb_free_urb(async_urb); 837 return; 838 } 839 840 /* outbound data */ 841 if (usb_endpoint_xfer_int(ir->usb_ep_out)) 842 usb_fill_int_urb(async_urb, ir->usbdev, ir->pipe_out, 843 async_buf, size, mce_async_callback, ir, 844 ir->usb_ep_out->bInterval); 845 else 846 usb_fill_bulk_urb(async_urb, ir->usbdev, ir->pipe_out, 847 async_buf, size, mce_async_callback, ir); 848 849 memcpy(async_buf, data, size); 850 851 dev_dbg(dev, "send request called (size=%#x)", size); 852 853 res = usb_submit_urb(async_urb, GFP_ATOMIC); 854 if (res) { 855 dev_err(dev, "send request FAILED! (res=%d)", res); 856 kfree(async_buf); 857 usb_free_urb(async_urb); 858 return; 859 } 860 dev_dbg(dev, "send request complete (res=%d)", res); 861 } 862 863 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) 864 { 865 int rsize = sizeof(DEVICE_RESUME); 866 867 if (ir->need_reset) { 868 ir->need_reset = false; 869 mce_request_packet(ir, DEVICE_RESUME, rsize); 870 msleep(10); 871 } 872 873 mce_request_packet(ir, data, size); 874 msleep(10); 875 } 876 877 /* Send data out the IR blaster port(s) */ 878 static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count) 879 { 880 struct mceusb_dev *ir = dev->priv; 881 int i, length, ret = 0; 882 int cmdcount = 0; 883 unsigned char cmdbuf[MCE_CMDBUF_SIZE]; 884 885 /* MCE tx init header */ 886 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR; 887 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS; 888 cmdbuf[cmdcount++] = ir->tx_mask; 889 890 /* Send the set TX ports command */ 891 mce_async_out(ir, cmdbuf, cmdcount); 892 cmdcount = 0; 893 894 /* Generate mce packet data */ 895 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { 896 txbuf[i] = txbuf[i] / MCE_TIME_UNIT; 897 898 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ 899 900 /* Insert mce packet header every 4th entry */ 901 if ((cmdcount < MCE_CMDBUF_SIZE) && 902 (cmdcount % MCE_CODE_LENGTH) == 0) 903 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; 904 905 /* Insert mce packet data */ 906 if (cmdcount < MCE_CMDBUF_SIZE) 907 cmdbuf[cmdcount++] = 908 (txbuf[i] < MCE_PULSE_BIT ? 909 txbuf[i] : MCE_MAX_PULSE_LENGTH) | 910 (i & 1 ? 0x00 : MCE_PULSE_BIT); 911 else { 912 ret = -EINVAL; 913 goto out; 914 } 915 916 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && 917 (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); 918 } 919 920 /* Check if we have room for the empty packet at the end */ 921 if (cmdcount >= MCE_CMDBUF_SIZE) { 922 ret = -EINVAL; 923 goto out; 924 } 925 926 /* Fix packet length in last header */ 927 length = cmdcount % MCE_CODE_LENGTH; 928 cmdbuf[cmdcount - length] -= MCE_CODE_LENGTH - length; 929 930 /* All mce commands end with an empty packet (0x80) */ 931 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; 932 933 /* Transmit the command to the mce device */ 934 mce_async_out(ir, cmdbuf, cmdcount); 935 936 out: 937 return ret ? ret : count; 938 } 939 940 /* Sets active IR outputs -- mce devices typically have two */ 941 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) 942 { 943 struct mceusb_dev *ir = dev->priv; 944 945 /* return number of transmitters */ 946 int emitters = ir->num_txports ? ir->num_txports : 2; 947 948 if (mask >= (1 << emitters)) 949 return emitters; 950 951 if (ir->flags.tx_mask_normal) 952 ir->tx_mask = mask; 953 else 954 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? 955 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; 956 957 return 0; 958 } 959 960 /* Sets the send carrier frequency and mode */ 961 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier) 962 { 963 struct mceusb_dev *ir = dev->priv; 964 int clk = 10000000; 965 int prescaler = 0, divisor = 0; 966 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR, 967 MCE_CMD_SETIRCFS, 0x00, 0x00 }; 968 969 /* Carrier has changed */ 970 if (ir->carrier != carrier) { 971 972 if (carrier == 0) { 973 ir->carrier = carrier; 974 cmdbuf[2] = MCE_CMD_SIG_END; 975 cmdbuf[3] = MCE_IRDATA_TRAILER; 976 dev_dbg(ir->dev, "disabling carrier modulation"); 977 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 978 return 0; 979 } 980 981 for (prescaler = 0; prescaler < 4; ++prescaler) { 982 divisor = (clk >> (2 * prescaler)) / carrier; 983 if (divisor <= 0xff) { 984 ir->carrier = carrier; 985 cmdbuf[2] = prescaler; 986 cmdbuf[3] = divisor; 987 dev_dbg(ir->dev, "requesting %u HZ carrier", 988 carrier); 989 990 /* Transmit new carrier to mce device */ 991 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 992 return 0; 993 } 994 } 995 996 return -EINVAL; 997 998 } 999 1000 return 0; 1001 } 1002 1003 static int mceusb_set_timeout(struct rc_dev *dev, unsigned int timeout) 1004 { 1005 u8 cmdbuf[4] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRTIMEOUT, 0, 0 }; 1006 struct mceusb_dev *ir = dev->priv; 1007 unsigned int units; 1008 1009 units = DIV_ROUND_CLOSEST(timeout, US_TO_NS(MCE_TIME_UNIT)); 1010 1011 cmdbuf[2] = units >> 8; 1012 cmdbuf[3] = units; 1013 1014 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1015 1016 /* get receiver timeout value */ 1017 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1018 1019 return 0; 1020 } 1021 1022 /* 1023 * Select or deselect the 2nd receiver port. 1024 * Second receiver is learning mode, wide-band, short-range receiver. 1025 * Only one receiver (long or short range) may be active at a time. 1026 */ 1027 static int mceusb_set_rx_wideband(struct rc_dev *dev, int enable) 1028 { 1029 struct mceusb_dev *ir = dev->priv; 1030 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR, 1031 MCE_CMD_SETIRRXPORTEN, 0x00 }; 1032 1033 dev_dbg(ir->dev, "select %s-range receive sensor", 1034 enable ? "short" : "long"); 1035 if (enable) { 1036 ir->wideband_rx_enabled = true; 1037 cmdbuf[2] = 2; /* port 2 is short range receiver */ 1038 } else { 1039 ir->wideband_rx_enabled = false; 1040 cmdbuf[2] = 1; /* port 1 is long range receiver */ 1041 } 1042 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1043 /* response from device sets ir->learning_active */ 1044 1045 return 0; 1046 } 1047 1048 /* 1049 * Enable/disable receiver carrier frequency pass through reporting. 1050 * Only the short-range receiver has carrier frequency measuring capability. 1051 * Implicitly select this receiver when enabling carrier frequency reporting. 1052 */ 1053 static int mceusb_set_rx_carrier_report(struct rc_dev *dev, int enable) 1054 { 1055 struct mceusb_dev *ir = dev->priv; 1056 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR, 1057 MCE_CMD_SETIRRXPORTEN, 0x00 }; 1058 1059 dev_dbg(ir->dev, "%s short-range receiver carrier reporting", 1060 enable ? "enable" : "disable"); 1061 if (enable) { 1062 ir->carrier_report_enabled = true; 1063 if (!ir->learning_active) { 1064 cmdbuf[2] = 2; /* port 2 is short range receiver */ 1065 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1066 } 1067 } else { 1068 ir->carrier_report_enabled = false; 1069 /* 1070 * Revert to normal (long-range) receiver only if the 1071 * wideband (short-range) receiver wasn't explicitly 1072 * enabled. 1073 */ 1074 if (ir->learning_active && !ir->wideband_rx_enabled) { 1075 cmdbuf[2] = 1; /* port 1 is long range receiver */ 1076 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1077 } 1078 } 1079 1080 return 0; 1081 } 1082 1083 /* 1084 * We don't do anything but print debug spew for many of the command bits 1085 * we receive from the hardware, but some of them are useful information 1086 * we want to store so that we can use them. 1087 */ 1088 static void mceusb_handle_command(struct mceusb_dev *ir, int index) 1089 { 1090 struct ir_raw_event rawir = {}; 1091 u8 hi = ir->buf_in[index + 1] & 0xff; 1092 u8 lo = ir->buf_in[index + 2] & 0xff; 1093 u32 carrier_cycles; 1094 u32 cycles_fix; 1095 1096 switch (ir->buf_in[index]) { 1097 /* the one and only 5-byte return value command */ 1098 case MCE_RSP_GETPORTSTATUS: 1099 if ((ir->buf_in[index + 4] & 0xff) == 0x00) 1100 ir->txports_cabled |= 1 << hi; 1101 break; 1102 1103 /* 2-byte return value commands */ 1104 case MCE_RSP_EQIRTIMEOUT: 1105 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT); 1106 break; 1107 case MCE_RSP_EQIRNUMPORTS: 1108 ir->num_txports = hi; 1109 ir->num_rxports = lo; 1110 break; 1111 case MCE_RSP_EQIRRXCFCNT: 1112 /* 1113 * The carrier cycle counter can overflow and wrap around 1114 * without notice from the device. So frequency measurement 1115 * will be inaccurate with long duration IR. 1116 * 1117 * The long-range (non learning) receiver always reports 1118 * zero count so we always ignore its report. 1119 */ 1120 if (ir->carrier_report_enabled && ir->learning_active && 1121 ir->pulse_tunit > 0) { 1122 carrier_cycles = (hi << 8 | lo); 1123 /* 1124 * Adjust carrier cycle count by adding 1125 * 1 missed count per pulse "on" 1126 */ 1127 cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0; 1128 rawir.carrier_report = 1; 1129 rawir.carrier = (1000000u / MCE_TIME_UNIT) * 1130 (carrier_cycles + cycles_fix) / 1131 ir->pulse_tunit; 1132 dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = %u)", 1133 rawir.carrier, ir->pulse_count, carrier_cycles, 1134 ir->pulse_tunit, ir->flags.rx2); 1135 ir_raw_event_store(ir->rc, &rawir); 1136 } 1137 break; 1138 1139 /* 1-byte return value commands */ 1140 case MCE_RSP_EQEMVER: 1141 ir->emver = hi; 1142 break; 1143 case MCE_RSP_EQIRTXPORTS: 1144 ir->tx_mask = hi; 1145 break; 1146 case MCE_RSP_EQIRRXPORTEN: 1147 ir->learning_active = ((hi & 0x02) == 0x02); 1148 if (ir->rxports_active != hi) { 1149 dev_info(ir->dev, "%s-range (0x%x) receiver active", 1150 ir->learning_active ? "short" : "long", hi); 1151 ir->rxports_active = hi; 1152 } 1153 break; 1154 case MCE_RSP_CMD_ILLEGAL: 1155 ir->need_reset = true; 1156 break; 1157 default: 1158 break; 1159 } 1160 } 1161 1162 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) 1163 { 1164 struct ir_raw_event rawir = {}; 1165 bool event = false; 1166 int i = 0; 1167 1168 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 1169 if (ir->flags.microsoft_gen1) 1170 i = 2; 1171 1172 /* if there's no data, just return now */ 1173 if (buf_len <= i) 1174 return; 1175 1176 for (; i < buf_len; i++) { 1177 switch (ir->parser_state) { 1178 case SUBCMD: 1179 ir->rem = mceusb_cmd_datasize(ir->cmd, ir->buf_in[i]); 1180 mceusb_dev_printdata(ir, ir->buf_in, buf_len, i - 1, 1181 ir->rem + 2, false); 1182 mceusb_handle_command(ir, i); 1183 ir->parser_state = CMD_DATA; 1184 break; 1185 case PARSE_IRDATA: 1186 ir->rem--; 1187 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); 1188 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK); 1189 if (unlikely(!rawir.duration)) { 1190 dev_warn(ir->dev, "nonsensical irdata %02x with duration 0", 1191 ir->buf_in[i]); 1192 break; 1193 } 1194 if (rawir.pulse) { 1195 ir->pulse_tunit += rawir.duration; 1196 ir->pulse_count++; 1197 } 1198 rawir.duration *= US_TO_NS(MCE_TIME_UNIT); 1199 1200 dev_dbg(ir->dev, "Storing %s %u ns (%02x)", 1201 rawir.pulse ? "pulse" : "space", 1202 rawir.duration, ir->buf_in[i]); 1203 1204 if (ir_raw_event_store_with_filter(ir->rc, &rawir)) 1205 event = true; 1206 break; 1207 case CMD_DATA: 1208 ir->rem--; 1209 break; 1210 case CMD_HEADER: 1211 /* decode mce packets of the form (84),AA,BB,CC,DD */ 1212 /* IR data packets can span USB messages - rem */ 1213 ir->cmd = ir->buf_in[i]; 1214 if ((ir->cmd == MCE_CMD_PORT_IR) || 1215 ((ir->cmd & MCE_PORT_MASK) != 1216 MCE_COMMAND_IRDATA)) { 1217 ir->parser_state = SUBCMD; 1218 continue; 1219 } 1220 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); 1221 mceusb_dev_printdata(ir, ir->buf_in, buf_len, 1222 i, ir->rem + 1, false); 1223 if (ir->rem) { 1224 ir->parser_state = PARSE_IRDATA; 1225 } else { 1226 struct ir_raw_event ev = { 1227 .timeout = 1, 1228 .duration = ir->rc->timeout 1229 }; 1230 1231 if (ir_raw_event_store_with_filter(ir->rc, 1232 &ev)) 1233 event = true; 1234 ir->pulse_tunit = 0; 1235 ir->pulse_count = 0; 1236 } 1237 break; 1238 } 1239 1240 if (ir->parser_state != CMD_HEADER && !ir->rem) 1241 ir->parser_state = CMD_HEADER; 1242 } 1243 if (event) { 1244 dev_dbg(ir->dev, "processed IR data"); 1245 ir_raw_event_handle(ir->rc); 1246 } 1247 } 1248 1249 static void mceusb_dev_recv(struct urb *urb) 1250 { 1251 struct mceusb_dev *ir; 1252 1253 if (!urb) 1254 return; 1255 1256 ir = urb->context; 1257 if (!ir) { 1258 usb_unlink_urb(urb); 1259 return; 1260 } 1261 1262 switch (urb->status) { 1263 /* success */ 1264 case 0: 1265 mceusb_process_ir_data(ir, urb->actual_length); 1266 break; 1267 1268 case -ECONNRESET: 1269 case -ENOENT: 1270 case -EILSEQ: 1271 case -ESHUTDOWN: 1272 usb_unlink_urb(urb); 1273 return; 1274 1275 case -EPIPE: 1276 dev_err(ir->dev, "Error: urb status = %d (RX HALT)", 1277 urb->status); 1278 mceusb_defer_kevent(ir, EVENT_RX_HALT); 1279 return; 1280 1281 default: 1282 dev_err(ir->dev, "Error: urb status = %d", urb->status); 1283 break; 1284 } 1285 1286 usb_submit_urb(urb, GFP_ATOMIC); 1287 } 1288 1289 static void mceusb_get_emulator_version(struct mceusb_dev *ir) 1290 { 1291 /* If we get no reply or an illegal command reply, its ver 1, says MS */ 1292 ir->emver = 1; 1293 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER)); 1294 } 1295 1296 static void mceusb_gen1_init(struct mceusb_dev *ir) 1297 { 1298 int ret; 1299 struct device *dev = ir->dev; 1300 char *data; 1301 1302 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); 1303 if (!data) { 1304 dev_err(dev, "%s: memory allocation failed!", __func__); 1305 return; 1306 } 1307 1308 /* 1309 * This is a strange one. Windows issues a set address to the device 1310 * on the receive control pipe and expect a certain value pair back 1311 */ 1312 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), 1313 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, 1314 data, USB_CTRL_MSG_SZ, HZ * 3); 1315 dev_dbg(dev, "set address - ret = %d", ret); 1316 dev_dbg(dev, "set address - data[0] = %d, data[1] = %d", 1317 data[0], data[1]); 1318 1319 /* set feature: bit rate 38400 bps */ 1320 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1321 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, 1322 0xc04e, 0x0000, NULL, 0, HZ * 3); 1323 1324 dev_dbg(dev, "set feature - ret = %d", ret); 1325 1326 /* bRequest 4: set char length to 8 bits */ 1327 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1328 4, USB_TYPE_VENDOR, 1329 0x0808, 0x0000, NULL, 0, HZ * 3); 1330 dev_dbg(dev, "set char length - retB = %d", ret); 1331 1332 /* bRequest 2: set handshaking to use DTR/DSR */ 1333 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1334 2, USB_TYPE_VENDOR, 1335 0x0000, 0x0100, NULL, 0, HZ * 3); 1336 dev_dbg(dev, "set handshake - retC = %d", ret); 1337 1338 /* device resume */ 1339 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1340 1341 /* get hw/sw revision? */ 1342 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1343 1344 kfree(data); 1345 } 1346 1347 static void mceusb_gen2_init(struct mceusb_dev *ir) 1348 { 1349 /* device resume */ 1350 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1351 1352 /* get wake version (protocol, key, address) */ 1353 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION)); 1354 1355 /* unknown what this one actually returns... */ 1356 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); 1357 } 1358 1359 static void mceusb_get_parameters(struct mceusb_dev *ir) 1360 { 1361 int i; 1362 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS, 1363 MCE_CMD_GETPORTSTATUS, 0x00 }; 1364 1365 /* defaults, if the hardware doesn't support querying */ 1366 ir->num_txports = 2; 1367 ir->num_rxports = 2; 1368 1369 /* get number of tx and rx ports */ 1370 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS)); 1371 1372 /* get the carrier and frequency */ 1373 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); 1374 1375 if (ir->num_txports && !ir->flags.no_tx) 1376 /* get the transmitter bitmask */ 1377 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); 1378 1379 /* get receiver timeout value */ 1380 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1381 1382 /* get receiver sensor setting */ 1383 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); 1384 1385 for (i = 0; i < ir->num_txports; i++) { 1386 cmdbuf[2] = i; 1387 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1388 } 1389 } 1390 1391 static void mceusb_flash_led(struct mceusb_dev *ir) 1392 { 1393 if (ir->emver < 2) 1394 return; 1395 1396 mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED)); 1397 } 1398 1399 /* 1400 * Workqueue function 1401 * for resetting or recovering device after occurrence of error events 1402 * specified in ir->kevent bit field. 1403 * Function runs (via schedule_work()) in non-interrupt context, for 1404 * calls here (such as usb_clear_halt()) requiring non-interrupt context. 1405 */ 1406 static void mceusb_deferred_kevent(struct work_struct *work) 1407 { 1408 struct mceusb_dev *ir = 1409 container_of(work, struct mceusb_dev, kevent); 1410 int status; 1411 1412 if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) { 1413 usb_unlink_urb(ir->urb_in); 1414 status = usb_clear_halt(ir->usbdev, ir->pipe_in); 1415 if (status < 0) { 1416 dev_err(ir->dev, "rx clear halt error %d", 1417 status); 1418 } 1419 clear_bit(EVENT_RX_HALT, &ir->kevent_flags); 1420 if (status == 0) { 1421 status = usb_submit_urb(ir->urb_in, GFP_KERNEL); 1422 if (status < 0) { 1423 dev_err(ir->dev, 1424 "rx unhalt submit urb error %d", 1425 status); 1426 } 1427 } 1428 } 1429 1430 if (test_bit(EVENT_TX_HALT, &ir->kevent_flags)) { 1431 status = usb_clear_halt(ir->usbdev, ir->pipe_out); 1432 if (status < 0) 1433 dev_err(ir->dev, "tx clear halt error %d", status); 1434 clear_bit(EVENT_TX_HALT, &ir->kevent_flags); 1435 } 1436 } 1437 1438 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) 1439 { 1440 struct usb_device *udev = ir->usbdev; 1441 struct device *dev = ir->dev; 1442 struct rc_dev *rc; 1443 int ret; 1444 1445 rc = rc_allocate_device(RC_DRIVER_IR_RAW); 1446 if (!rc) { 1447 dev_err(dev, "remote dev allocation failed"); 1448 goto out; 1449 } 1450 1451 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", 1452 mceusb_model[ir->model].name ? 1453 mceusb_model[ir->model].name : 1454 "Media Center Ed. eHome Infrared Remote Transceiver", 1455 le16_to_cpu(ir->usbdev->descriptor.idVendor), 1456 le16_to_cpu(ir->usbdev->descriptor.idProduct)); 1457 1458 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); 1459 1460 rc->device_name = ir->name; 1461 rc->input_phys = ir->phys; 1462 usb_to_input_id(ir->usbdev, &rc->input_id); 1463 rc->dev.parent = dev; 1464 rc->priv = ir; 1465 rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER; 1466 rc->min_timeout = US_TO_NS(MCE_TIME_UNIT); 1467 rc->timeout = MS_TO_NS(100); 1468 if (!mceusb_model[ir->model].broken_irtimeout) { 1469 rc->s_timeout = mceusb_set_timeout; 1470 rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT; 1471 } else { 1472 /* 1473 * If we can't set the timeout using CMD_SETIRTIMEOUT, we can 1474 * rely on software timeouts for timeouts < 100ms. 1475 */ 1476 rc->max_timeout = rc->timeout; 1477 } 1478 if (!ir->flags.no_tx) { 1479 rc->s_tx_mask = mceusb_set_tx_mask; 1480 rc->s_tx_carrier = mceusb_set_tx_carrier; 1481 rc->tx_ir = mceusb_tx_ir; 1482 } 1483 if (ir->flags.rx2 > 0) { 1484 rc->s_learning_mode = mceusb_set_rx_wideband; 1485 rc->s_carrier_report = mceusb_set_rx_carrier_report; 1486 } 1487 rc->driver_name = DRIVER_NAME; 1488 1489 switch (le16_to_cpu(udev->descriptor.idVendor)) { 1490 case VENDOR_HAUPPAUGE: 1491 rc->map_name = RC_MAP_HAUPPAUGE; 1492 break; 1493 case VENDOR_PCTV: 1494 rc->map_name = RC_MAP_PINNACLE_PCTV_HD; 1495 break; 1496 default: 1497 rc->map_name = RC_MAP_RC6_MCE; 1498 } 1499 if (mceusb_model[ir->model].rc_map) 1500 rc->map_name = mceusb_model[ir->model].rc_map; 1501 1502 ret = rc_register_device(rc); 1503 if (ret < 0) { 1504 dev_err(dev, "remote dev registration failed"); 1505 goto out; 1506 } 1507 1508 return rc; 1509 1510 out: 1511 rc_free_device(rc); 1512 return NULL; 1513 } 1514 1515 static int mceusb_dev_probe(struct usb_interface *intf, 1516 const struct usb_device_id *id) 1517 { 1518 struct usb_device *dev = interface_to_usbdev(intf); 1519 struct usb_host_interface *idesc; 1520 struct usb_endpoint_descriptor *ep = NULL; 1521 struct usb_endpoint_descriptor *ep_in = NULL; 1522 struct usb_endpoint_descriptor *ep_out = NULL; 1523 struct mceusb_dev *ir = NULL; 1524 int pipe, maxp, i, res; 1525 char buf[63], name[128] = ""; 1526 enum mceusb_model_type model = id->driver_info; 1527 bool is_gen3; 1528 bool is_microsoft_gen1; 1529 bool tx_mask_normal; 1530 int ir_intfnum; 1531 1532 dev_dbg(&intf->dev, "%s called", __func__); 1533 1534 idesc = intf->cur_altsetting; 1535 1536 is_gen3 = mceusb_model[model].mce_gen3; 1537 is_microsoft_gen1 = mceusb_model[model].mce_gen1; 1538 tx_mask_normal = mceusb_model[model].tx_mask_normal; 1539 ir_intfnum = mceusb_model[model].ir_intfnum; 1540 1541 /* There are multi-function devices with non-IR interfaces */ 1542 if (idesc->desc.bInterfaceNumber != ir_intfnum) 1543 return -ENODEV; 1544 1545 /* step through the endpoints to find first bulk in and out endpoint */ 1546 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { 1547 ep = &idesc->endpoint[i].desc; 1548 1549 if (ep_in == NULL) { 1550 if (usb_endpoint_is_bulk_in(ep)) { 1551 ep_in = ep; 1552 dev_dbg(&intf->dev, "acceptable bulk inbound endpoint found\n"); 1553 } else if (usb_endpoint_is_int_in(ep)) { 1554 ep_in = ep; 1555 ep_in->bInterval = 1; 1556 dev_dbg(&intf->dev, "acceptable interrupt inbound endpoint found\n"); 1557 } 1558 } 1559 1560 if (ep_out == NULL) { 1561 if (usb_endpoint_is_bulk_out(ep)) { 1562 ep_out = ep; 1563 dev_dbg(&intf->dev, "acceptable bulk outbound endpoint found\n"); 1564 } else if (usb_endpoint_is_int_out(ep)) { 1565 ep_out = ep; 1566 ep_out->bInterval = 1; 1567 dev_dbg(&intf->dev, "acceptable interrupt outbound endpoint found\n"); 1568 } 1569 } 1570 } 1571 if (!ep_in || !ep_out) { 1572 dev_dbg(&intf->dev, "required endpoints not found\n"); 1573 return -ENODEV; 1574 } 1575 1576 if (usb_endpoint_xfer_int(ep_in)) 1577 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); 1578 else 1579 pipe = usb_rcvbulkpipe(dev, ep_in->bEndpointAddress); 1580 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 1581 1582 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); 1583 if (!ir) 1584 goto mem_alloc_fail; 1585 1586 ir->pipe_in = pipe; 1587 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); 1588 if (!ir->buf_in) 1589 goto buf_in_alloc_fail; 1590 1591 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); 1592 if (!ir->urb_in) 1593 goto urb_in_alloc_fail; 1594 1595 ir->usbdev = usb_get_dev(dev); 1596 ir->dev = &intf->dev; 1597 ir->len_in = maxp; 1598 ir->flags.microsoft_gen1 = is_microsoft_gen1; 1599 ir->flags.tx_mask_normal = tx_mask_normal; 1600 ir->flags.no_tx = mceusb_model[model].no_tx; 1601 ir->flags.rx2 = mceusb_model[model].rx2; 1602 ir->model = model; 1603 1604 /* Saving usb interface data for use by the transmitter routine */ 1605 ir->usb_ep_out = ep_out; 1606 if (usb_endpoint_xfer_int(ep_out)) 1607 ir->pipe_out = usb_sndintpipe(ir->usbdev, 1608 ep_out->bEndpointAddress); 1609 else 1610 ir->pipe_out = usb_sndbulkpipe(ir->usbdev, 1611 ep_out->bEndpointAddress); 1612 1613 if (dev->descriptor.iManufacturer 1614 && usb_string(dev, dev->descriptor.iManufacturer, 1615 buf, sizeof(buf)) > 0) 1616 strscpy(name, buf, sizeof(name)); 1617 if (dev->descriptor.iProduct 1618 && usb_string(dev, dev->descriptor.iProduct, 1619 buf, sizeof(buf)) > 0) 1620 snprintf(name + strlen(name), sizeof(name) - strlen(name), 1621 " %s", buf); 1622 1623 /* 1624 * Initialize async USB error handler before registering 1625 * or activating any mceusb RX and TX functions 1626 */ 1627 INIT_WORK(&ir->kevent, mceusb_deferred_kevent); 1628 1629 ir->rc = mceusb_init_rc_dev(ir); 1630 if (!ir->rc) 1631 goto rc_dev_fail; 1632 1633 /* wire up inbound data handler */ 1634 if (usb_endpoint_xfer_int(ep_in)) 1635 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, 1636 mceusb_dev_recv, ir, ep_in->bInterval); 1637 else 1638 usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, 1639 mceusb_dev_recv, ir); 1640 1641 ir->urb_in->transfer_dma = ir->dma_in; 1642 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1643 1644 /* flush buffers on the device */ 1645 dev_dbg(&intf->dev, "Flushing receive buffers"); 1646 res = usb_submit_urb(ir->urb_in, GFP_KERNEL); 1647 if (res) 1648 dev_err(&intf->dev, "failed to flush buffers: %d", res); 1649 1650 /* figure out which firmware/emulator version this hardware has */ 1651 mceusb_get_emulator_version(ir); 1652 1653 /* initialize device */ 1654 if (ir->flags.microsoft_gen1) 1655 mceusb_gen1_init(ir); 1656 else if (!is_gen3) 1657 mceusb_gen2_init(ir); 1658 1659 mceusb_get_parameters(ir); 1660 1661 mceusb_flash_led(ir); 1662 1663 if (!ir->flags.no_tx) 1664 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); 1665 1666 usb_set_intfdata(intf, ir); 1667 1668 /* enable wake via this device */ 1669 device_set_wakeup_capable(ir->dev, true); 1670 device_set_wakeup_enable(ir->dev, true); 1671 1672 dev_info(&intf->dev, "Registered %s with mce emulator interface version %x", 1673 name, ir->emver); 1674 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and %x rx sensors (0x%x active)", 1675 ir->num_txports, ir->txports_cabled, 1676 ir->num_rxports, ir->rxports_active); 1677 1678 return 0; 1679 1680 /* Error-handling path */ 1681 rc_dev_fail: 1682 cancel_work_sync(&ir->kevent); 1683 usb_put_dev(ir->usbdev); 1684 usb_kill_urb(ir->urb_in); 1685 usb_free_urb(ir->urb_in); 1686 urb_in_alloc_fail: 1687 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); 1688 buf_in_alloc_fail: 1689 kfree(ir); 1690 mem_alloc_fail: 1691 dev_err(&intf->dev, "%s: device setup failed!", __func__); 1692 1693 return -ENOMEM; 1694 } 1695 1696 1697 static void mceusb_dev_disconnect(struct usb_interface *intf) 1698 { 1699 struct usb_device *dev = interface_to_usbdev(intf); 1700 struct mceusb_dev *ir = usb_get_intfdata(intf); 1701 1702 usb_set_intfdata(intf, NULL); 1703 1704 if (!ir) 1705 return; 1706 1707 ir->usbdev = NULL; 1708 cancel_work_sync(&ir->kevent); 1709 rc_unregister_device(ir->rc); 1710 usb_kill_urb(ir->urb_in); 1711 usb_free_urb(ir->urb_in); 1712 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); 1713 usb_put_dev(dev); 1714 1715 kfree(ir); 1716 } 1717 1718 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) 1719 { 1720 struct mceusb_dev *ir = usb_get_intfdata(intf); 1721 dev_info(ir->dev, "suspend"); 1722 usb_kill_urb(ir->urb_in); 1723 return 0; 1724 } 1725 1726 static int mceusb_dev_resume(struct usb_interface *intf) 1727 { 1728 struct mceusb_dev *ir = usb_get_intfdata(intf); 1729 dev_info(ir->dev, "resume"); 1730 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) 1731 return -EIO; 1732 return 0; 1733 } 1734 1735 static struct usb_driver mceusb_dev_driver = { 1736 .name = DRIVER_NAME, 1737 .probe = mceusb_dev_probe, 1738 .disconnect = mceusb_dev_disconnect, 1739 .suspend = mceusb_dev_suspend, 1740 .resume = mceusb_dev_resume, 1741 .reset_resume = mceusb_dev_resume, 1742 .id_table = mceusb_dev_table 1743 }; 1744 1745 module_usb_driver(mceusb_dev_driver); 1746 1747 MODULE_DESCRIPTION(DRIVER_DESC); 1748 MODULE_AUTHOR(DRIVER_AUTHOR); 1749 MODULE_LICENSE("GPL"); 1750 MODULE_DEVICE_TABLE(usb, mceusb_dev_table); 1751