1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers 4 * 5 * Copyright (c) 2010-2011, Jarod Wilson <jarod@redhat.com> 6 * 7 * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan 8 * Conti, Martin Blatter and Daniel Melander, the latter of which was 9 * in turn also based on the lirc_atiusb driver by Paul Miller. The 10 * two mce drivers were merged into one by Jarod Wilson, with transmit 11 * support for the 1st-gen device added primarily by Patrick Calhoun, 12 * with a bit of tweaks by Jarod. Debugging improvements and proper 13 * support for what appears to be 3rd-gen hardware added by Jarod. 14 * Initial port from lirc driver to ir-core drivery by Jarod, based 15 * partially on a port to an earlier proposed IR infrastructure by 16 * Jon Smirl, which included enhancements and simplifications to the 17 * incoming IR buffer parsing routines. 18 * 19 * Updated in July of 2011 with the aid of Microsoft's official 20 * remote/transceiver requirements and specification document, found at 21 * download.microsoft.com, title 22 * Windows-Media-Center-RC-IR-Collection-Green-Button-Specification-03-08-2011-V2.pdf 23 */ 24 25 #include <linux/device.h> 26 #include <linux/module.h> 27 #include <linux/slab.h> 28 #include <linux/workqueue.h> 29 #include <linux/usb.h> 30 #include <linux/usb/input.h> 31 #include <linux/pm_wakeup.h> 32 #include <media/rc-core.h> 33 34 #define DRIVER_VERSION "1.94" 35 #define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>" 36 #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ 37 "device driver" 38 #define DRIVER_NAME "mceusb" 39 40 #define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */ 41 #define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */ 42 43 /* MCE constants */ 44 #define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */ 45 #define MCE_TIME_UNIT 50 /* Approx 50us resolution */ 46 #define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */ 47 #define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */ 48 #define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */ 49 #define MCE_IRDATA_TRAILER 0x80 /* End of IR data */ 50 #define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */ 51 #define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */ 52 #define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */ 53 #define MCE_PULSE_MASK 0x7f /* Pulse mask */ 54 #define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */ 55 56 /* 57 * The interface between the host and the IR hardware is command-response 58 * based. All commands and responses have a consistent format, where a lead 59 * byte always identifies the type of data following it. The lead byte has 60 * a port value in the 3 highest bits and a length value in the 5 lowest 61 * bits. 62 * 63 * The length field is overloaded, with a value of 11111 indicating that the 64 * following byte is a command or response code, and the length of the entire 65 * message is determined by the code. If the length field is not 11111, then 66 * it specifies the number of bytes of port data that follow. 67 */ 68 #define MCE_CMD 0x1f 69 #define MCE_PORT_IR 0x4 /* (0x4 << 5) | MCE_CMD = 0x9f */ 70 #define MCE_PORT_SYS 0x7 /* (0x7 << 5) | MCE_CMD = 0xff */ 71 #define MCE_PORT_SER 0x6 /* 0xc0 through 0xdf flush & 0x1f bytes */ 72 #define MCE_PORT_MASK 0xe0 /* Mask out command bits */ 73 74 /* Command port headers */ 75 #define MCE_CMD_PORT_IR 0x9f /* IR-related cmd/rsp */ 76 #define MCE_CMD_PORT_SYS 0xff /* System (non-IR) device cmd/rsp */ 77 78 /* Commands that set device state (2-4 bytes in length) */ 79 #define MCE_CMD_RESET 0xfe /* Reset device, 2 bytes */ 80 #define MCE_CMD_RESUME 0xaa /* Resume device after error, 2 bytes */ 81 #define MCE_CMD_SETIRCFS 0x06 /* Set tx carrier, 4 bytes */ 82 #define MCE_CMD_SETIRTIMEOUT 0x0c /* Set timeout, 4 bytes */ 83 #define MCE_CMD_SETIRTXPORTS 0x08 /* Set tx ports, 3 bytes */ 84 #define MCE_CMD_SETIRRXPORTEN 0x14 /* Set rx ports, 3 bytes */ 85 #define MCE_CMD_FLASHLED 0x23 /* Flash receiver LED, 2 bytes */ 86 87 /* Commands that query device state (all 2 bytes, unless noted) */ 88 #define MCE_CMD_GETIRCFS 0x07 /* Get carrier */ 89 #define MCE_CMD_GETIRTIMEOUT 0x0d /* Get timeout */ 90 #define MCE_CMD_GETIRTXPORTS 0x13 /* Get tx ports */ 91 #define MCE_CMD_GETIRRXPORTEN 0x15 /* Get rx ports */ 92 #define MCE_CMD_GETPORTSTATUS 0x11 /* Get tx port status, 3 bytes */ 93 #define MCE_CMD_GETIRNUMPORTS 0x16 /* Get number of ports */ 94 #define MCE_CMD_GETWAKESOURCE 0x17 /* Get wake source */ 95 #define MCE_CMD_GETEMVER 0x22 /* Get emulator interface version */ 96 #define MCE_CMD_GETDEVDETAILS 0x21 /* Get device details (em ver2 only) */ 97 #define MCE_CMD_GETWAKESUPPORT 0x20 /* Get wake details (em ver2 only) */ 98 #define MCE_CMD_GETWAKEVERSION 0x18 /* Get wake pattern (em ver2 only) */ 99 100 /* Misc commands */ 101 #define MCE_CMD_NOP 0xff /* No operation */ 102 103 /* Responses to commands (non-error cases) */ 104 #define MCE_RSP_EQIRCFS 0x06 /* tx carrier, 4 bytes */ 105 #define MCE_RSP_EQIRTIMEOUT 0x0c /* rx timeout, 4 bytes */ 106 #define MCE_RSP_GETWAKESOURCE 0x17 /* wake source, 3 bytes */ 107 #define MCE_RSP_EQIRTXPORTS 0x08 /* tx port mask, 3 bytes */ 108 #define MCE_RSP_EQIRRXPORTEN 0x14 /* rx port mask, 3 bytes */ 109 #define MCE_RSP_GETPORTSTATUS 0x11 /* tx port status, 7 bytes */ 110 #define MCE_RSP_EQIRRXCFCNT 0x15 /* rx carrier count, 4 bytes */ 111 #define MCE_RSP_EQIRNUMPORTS 0x16 /* number of ports, 4 bytes */ 112 #define MCE_RSP_EQWAKESUPPORT 0x20 /* wake capabilities, 3 bytes */ 113 #define MCE_RSP_EQWAKEVERSION 0x18 /* wake pattern details, 6 bytes */ 114 #define MCE_RSP_EQDEVDETAILS 0x21 /* device capabilities, 3 bytes */ 115 #define MCE_RSP_EQEMVER 0x22 /* emulator interface ver, 3 bytes */ 116 #define MCE_RSP_FLASHLED 0x23 /* success flashing LED, 2 bytes */ 117 118 /* Responses to error cases, must send MCE_CMD_RESUME to clear them */ 119 #define MCE_RSP_CMD_ILLEGAL 0xfe /* illegal command for port, 2 bytes */ 120 #define MCE_RSP_TX_TIMEOUT 0x81 /* tx timed out, 2 bytes */ 121 122 /* Misc commands/responses not defined in the MCE remote/transceiver spec */ 123 #define MCE_CMD_SIG_END 0x01 /* End of signal */ 124 #define MCE_CMD_PING 0x03 /* Ping device */ 125 #define MCE_CMD_UNKNOWN 0x04 /* Unknown */ 126 #define MCE_CMD_UNKNOWN2 0x05 /* Unknown */ 127 #define MCE_CMD_UNKNOWN3 0x09 /* Unknown */ 128 #define MCE_CMD_UNKNOWN4 0x0a /* Unknown */ 129 #define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */ 130 #define MCE_CMD_UNKNOWN5 0x0e /* Unknown */ 131 #define MCE_CMD_UNKNOWN6 0x0f /* Unknown */ 132 #define MCE_CMD_UNKNOWN8 0x19 /* Unknown */ 133 #define MCE_CMD_UNKNOWN9 0x1b /* Unknown */ 134 #define MCE_CMD_NULL 0x00 /* These show up various places... */ 135 136 /* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR, 137 * then we're looking at a raw IR data sample */ 138 #define MCE_COMMAND_IRDATA 0x80 139 #define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */ 140 141 #define VENDOR_PHILIPS 0x0471 142 #define VENDOR_SMK 0x0609 143 #define VENDOR_TATUNG 0x1460 144 #define VENDOR_GATEWAY 0x107b 145 #define VENDOR_SHUTTLE 0x1308 146 #define VENDOR_SHUTTLE2 0x051c 147 #define VENDOR_MITSUMI 0x03ee 148 #define VENDOR_TOPSEED 0x1784 149 #define VENDOR_RICAVISION 0x179d 150 #define VENDOR_ITRON 0x195d 151 #define VENDOR_FIC 0x1509 152 #define VENDOR_LG 0x043e 153 #define VENDOR_MICROSOFT 0x045e 154 #define VENDOR_FORMOSA 0x147a 155 #define VENDOR_FINTEK 0x1934 156 #define VENDOR_PINNACLE 0x2304 157 #define VENDOR_ECS 0x1019 158 #define VENDOR_WISTRON 0x0fb8 159 #define VENDOR_COMPRO 0x185b 160 #define VENDOR_NORTHSTAR 0x04eb 161 #define VENDOR_REALTEK 0x0bda 162 #define VENDOR_TIVO 0x105a 163 #define VENDOR_CONEXANT 0x0572 164 #define VENDOR_TWISTEDMELON 0x2596 165 #define VENDOR_HAUPPAUGE 0x2040 166 #define VENDOR_PCTV 0x2013 167 #define VENDOR_ADAPTEC 0x03f3 168 169 enum mceusb_model_type { 170 MCE_GEN2 = 0, /* Most boards */ 171 MCE_GEN1, 172 MCE_GEN3, 173 MCE_GEN3_BROKEN_IRTIMEOUT, 174 MCE_GEN2_TX_INV, 175 MCE_GEN2_TX_INV_RX_GOOD, 176 POLARIS_EVK, 177 CX_HYBRID_TV, 178 MULTIFUNCTION, 179 TIVO_KIT, 180 MCE_GEN2_NO_TX, 181 HAUPPAUGE_CX_HYBRID_TV, 182 EVROMEDIA_FULL_HYBRID_FULLHD, 183 ASTROMETA_T2HYBRID, 184 }; 185 186 struct mceusb_model { 187 u32 mce_gen1:1; 188 u32 mce_gen2:1; 189 u32 mce_gen3:1; 190 u32 tx_mask_normal:1; 191 u32 no_tx:1; 192 u32 broken_irtimeout:1; 193 /* 194 * 2nd IR receiver (short-range, wideband) for learning mode: 195 * 0, absent 2nd receiver (rx2) 196 * 1, rx2 present 197 * 2, rx2 which under counts IR carrier cycles 198 */ 199 u32 rx2; 200 201 int ir_intfnum; 202 203 const char *rc_map; /* Allow specify a per-board map */ 204 const char *name; /* per-board name */ 205 }; 206 207 static const struct mceusb_model mceusb_model[] = { 208 [MCE_GEN1] = { 209 .mce_gen1 = 1, 210 .tx_mask_normal = 1, 211 .rx2 = 2, 212 }, 213 [MCE_GEN2] = { 214 .mce_gen2 = 1, 215 .rx2 = 2, 216 }, 217 [MCE_GEN2_NO_TX] = { 218 .mce_gen2 = 1, 219 .no_tx = 1, 220 }, 221 [MCE_GEN2_TX_INV] = { 222 .mce_gen2 = 1, 223 .tx_mask_normal = 1, 224 .rx2 = 1, 225 }, 226 [MCE_GEN2_TX_INV_RX_GOOD] = { 227 .mce_gen2 = 1, 228 .tx_mask_normal = 1, 229 .rx2 = 2, 230 }, 231 [MCE_GEN3] = { 232 .mce_gen3 = 1, 233 .tx_mask_normal = 1, 234 .rx2 = 2, 235 }, 236 [MCE_GEN3_BROKEN_IRTIMEOUT] = { 237 .mce_gen3 = 1, 238 .tx_mask_normal = 1, 239 .rx2 = 2, 240 .broken_irtimeout = 1 241 }, 242 [POLARIS_EVK] = { 243 /* 244 * In fact, the EVK is shipped without 245 * remotes, but we should have something handy, 246 * to allow testing it 247 */ 248 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 249 .rx2 = 2, 250 }, 251 [CX_HYBRID_TV] = { 252 .no_tx = 1, /* tx isn't wired up at all */ 253 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 254 }, 255 [HAUPPAUGE_CX_HYBRID_TV] = { 256 .no_tx = 1, /* eeprom says it has no tx */ 257 .name = "Conexant Hybrid TV (cx231xx) MCE IR no TX", 258 }, 259 [MULTIFUNCTION] = { 260 .mce_gen2 = 1, 261 .ir_intfnum = 2, 262 .rx2 = 2, 263 }, 264 [TIVO_KIT] = { 265 .mce_gen2 = 1, 266 .rc_map = RC_MAP_TIVO, 267 .rx2 = 2, 268 }, 269 [EVROMEDIA_FULL_HYBRID_FULLHD] = { 270 .name = "Evromedia USB Full Hybrid Full HD", 271 .no_tx = 1, 272 .rc_map = RC_MAP_MSI_DIGIVOX_III, 273 }, 274 [ASTROMETA_T2HYBRID] = { 275 .name = "Astrometa T2Hybrid", 276 .no_tx = 1, 277 .rc_map = RC_MAP_ASTROMETA_T2HYBRID, 278 } 279 }; 280 281 static const struct usb_device_id mceusb_dev_table[] = { 282 /* Original Microsoft MCE IR Transceiver (often HP-branded) */ 283 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d), 284 .driver_info = MCE_GEN1 }, 285 /* Philips Infrared Transceiver - Sahara branded */ 286 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, 287 /* Philips Infrared Transceiver - HP branded */ 288 { USB_DEVICE(VENDOR_PHILIPS, 0x060c), 289 .driver_info = MCE_GEN2_TX_INV }, 290 /* Philips SRM5100 */ 291 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, 292 /* Philips Infrared Transceiver - Omaura */ 293 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, 294 /* Philips Infrared Transceiver - Spinel plus */ 295 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, 296 /* Philips eHome Infrared Transceiver */ 297 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, 298 /* Philips/Spinel plus IR transceiver for ASUS */ 299 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, 300 /* Philips/Spinel plus IR transceiver for ASUS */ 301 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, 302 /* Philips IR transceiver (Dell branded) */ 303 { USB_DEVICE(VENDOR_PHILIPS, 0x2093), 304 .driver_info = MCE_GEN2_TX_INV }, 305 /* Realtek MCE IR Receiver and card reader */ 306 { USB_DEVICE(VENDOR_REALTEK, 0x0161), 307 .driver_info = MULTIFUNCTION }, 308 /* SMK/Toshiba G83C0004D410 */ 309 { USB_DEVICE(VENDOR_SMK, 0x031d), 310 .driver_info = MCE_GEN2_TX_INV_RX_GOOD }, 311 /* SMK eHome Infrared Transceiver (Sony VAIO) */ 312 { USB_DEVICE(VENDOR_SMK, 0x0322), 313 .driver_info = MCE_GEN2_TX_INV }, 314 /* bundled with Hauppauge PVR-150 */ 315 { USB_DEVICE(VENDOR_SMK, 0x0334), 316 .driver_info = MCE_GEN2_TX_INV }, 317 /* SMK eHome Infrared Transceiver */ 318 { USB_DEVICE(VENDOR_SMK, 0x0338) }, 319 /* SMK/I-O Data GV-MC7/RCKIT Receiver */ 320 { USB_DEVICE(VENDOR_SMK, 0x0353), 321 .driver_info = MCE_GEN2_NO_TX }, 322 /* SMK RXX6000 Infrared Receiver */ 323 { USB_DEVICE(VENDOR_SMK, 0x0357), 324 .driver_info = MCE_GEN2_NO_TX }, 325 /* Tatung eHome Infrared Transceiver */ 326 { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, 327 /* Shuttle eHome Infrared Transceiver */ 328 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, 329 /* Shuttle eHome Infrared Transceiver */ 330 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, 331 /* Gateway eHome Infrared Transceiver */ 332 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, 333 /* Mitsumi */ 334 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, 335 /* Topseed eHome Infrared Transceiver */ 336 { USB_DEVICE(VENDOR_TOPSEED, 0x0001), 337 .driver_info = MCE_GEN2_TX_INV }, 338 /* Topseed HP eHome Infrared Transceiver */ 339 { USB_DEVICE(VENDOR_TOPSEED, 0x0006), 340 .driver_info = MCE_GEN2_TX_INV }, 341 /* Topseed eHome Infrared Transceiver */ 342 { USB_DEVICE(VENDOR_TOPSEED, 0x0007), 343 .driver_info = MCE_GEN2_TX_INV }, 344 /* Topseed eHome Infrared Transceiver */ 345 { USB_DEVICE(VENDOR_TOPSEED, 0x0008), 346 .driver_info = MCE_GEN3 }, 347 /* Topseed eHome Infrared Transceiver */ 348 { USB_DEVICE(VENDOR_TOPSEED, 0x000a), 349 .driver_info = MCE_GEN2_TX_INV }, 350 /* Topseed eHome Infrared Transceiver */ 351 { USB_DEVICE(VENDOR_TOPSEED, 0x0011), 352 .driver_info = MCE_GEN3_BROKEN_IRTIMEOUT }, 353 /* Ricavision internal Infrared Transceiver */ 354 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, 355 /* Itron ione Libra Q-11 */ 356 { USB_DEVICE(VENDOR_ITRON, 0x7002) }, 357 /* FIC eHome Infrared Transceiver */ 358 { USB_DEVICE(VENDOR_FIC, 0x9242) }, 359 /* LG eHome Infrared Transceiver */ 360 { USB_DEVICE(VENDOR_LG, 0x9803) }, 361 /* Microsoft MCE Infrared Transceiver */ 362 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, 363 /* Formosa eHome Infrared Transceiver */ 364 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, 365 /* Formosa21 / eHome Infrared Receiver */ 366 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, 367 /* Formosa aim / Trust MCE Infrared Receiver */ 368 { USB_DEVICE(VENDOR_FORMOSA, 0xe017), 369 .driver_info = MCE_GEN2_NO_TX }, 370 /* Formosa Industrial Computing / Beanbag Emulation Device */ 371 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, 372 /* Formosa21 / eHome Infrared Receiver */ 373 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, 374 /* Formosa Industrial Computing AIM IR605/A */ 375 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, 376 /* Formosa Industrial Computing */ 377 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, 378 /* Formosa Industrial Computing */ 379 { USB_DEVICE(VENDOR_FORMOSA, 0xe042) }, 380 /* Fintek eHome Infrared Transceiver (HP branded) */ 381 { USB_DEVICE(VENDOR_FINTEK, 0x5168), 382 .driver_info = MCE_GEN2_TX_INV }, 383 /* Fintek eHome Infrared Transceiver */ 384 { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, 385 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ 386 { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, 387 /* Pinnacle Remote Kit */ 388 { USB_DEVICE(VENDOR_PINNACLE, 0x0225), 389 .driver_info = MCE_GEN3 }, 390 /* Elitegroup Computer Systems IR */ 391 { USB_DEVICE(VENDOR_ECS, 0x0f38) }, 392 /* Wistron Corp. eHome Infrared Receiver */ 393 { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, 394 /* Compro K100 */ 395 { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, 396 /* Compro K100 v2 */ 397 { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, 398 /* Northstar Systems, Inc. eHome Infrared Transceiver */ 399 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, 400 /* TiVo PC IR Receiver */ 401 { USB_DEVICE(VENDOR_TIVO, 0x2000), 402 .driver_info = TIVO_KIT }, 403 /* Conexant Hybrid TV "Shelby" Polaris SDK */ 404 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1), 405 .driver_info = POLARIS_EVK }, 406 /* Conexant Hybrid TV RDU253S Polaris */ 407 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5), 408 .driver_info = CX_HYBRID_TV }, 409 /* Twisted Melon Inc. - Manta Mini Receiver */ 410 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8008) }, 411 /* Twisted Melon Inc. - Manta Pico Receiver */ 412 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8016) }, 413 /* Twisted Melon Inc. - Manta Transceiver */ 414 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8042) }, 415 /* Hauppauge WINTV-HVR-HVR 930C-HD - based on cx231xx */ 416 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb130), 417 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 418 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb131), 419 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 420 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb138), 421 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 422 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb139), 423 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 424 /* Hauppauge WinTV-HVR-935C - based on cx231xx */ 425 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb151), 426 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 427 /* Hauppauge WinTV-HVR-955Q - based on cx231xx */ 428 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb123), 429 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 430 /* Hauppauge WinTV-HVR-975 - based on cx231xx */ 431 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb150), 432 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 433 { USB_DEVICE(VENDOR_PCTV, 0x0259), 434 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 435 { USB_DEVICE(VENDOR_PCTV, 0x025e), 436 .driver_info = HAUPPAUGE_CX_HYBRID_TV }, 437 /* Adaptec / HP eHome Receiver */ 438 { USB_DEVICE(VENDOR_ADAPTEC, 0x0094) }, 439 /* Evromedia USB Full Hybrid Full HD */ 440 { USB_DEVICE(0x1b80, 0xd3b2), 441 .driver_info = EVROMEDIA_FULL_HYBRID_FULLHD }, 442 /* Astrometa T2hybrid */ 443 { USB_DEVICE(0x15f4, 0x0135), 444 .driver_info = ASTROMETA_T2HYBRID }, 445 446 /* Terminating entry */ 447 { } 448 }; 449 450 /* data structure for each usb transceiver */ 451 struct mceusb_dev { 452 /* ir-core bits */ 453 struct rc_dev *rc; 454 455 /* optional features we can enable */ 456 bool carrier_report_enabled; 457 bool wideband_rx_enabled; /* aka learning mode, short-range rx */ 458 459 /* core device bits */ 460 struct device *dev; 461 462 /* usb */ 463 struct usb_device *usbdev; 464 struct urb *urb_in; 465 unsigned int pipe_in; 466 struct usb_endpoint_descriptor *usb_ep_out; 467 unsigned int pipe_out; 468 469 /* buffers and dma */ 470 unsigned char *buf_in; 471 unsigned int len_in; 472 dma_addr_t dma_in; 473 474 enum { 475 CMD_HEADER = 0, 476 SUBCMD, 477 CMD_DATA, 478 PARSE_IRDATA, 479 } parser_state; 480 481 u8 cmd, rem; /* Remaining IR data bytes in packet */ 482 483 struct { 484 u32 connected:1; 485 u32 tx_mask_normal:1; 486 u32 microsoft_gen1:1; 487 u32 no_tx:1; 488 u32 rx2; 489 } flags; 490 491 /* transmit support */ 492 u32 carrier; 493 unsigned char tx_mask; 494 495 char name[128]; 496 char phys[64]; 497 enum mceusb_model_type model; 498 499 bool need_reset; /* flag to issue a device resume cmd */ 500 u8 emver; /* emulator interface version */ 501 u8 num_txports; /* number of transmit ports */ 502 u8 num_rxports; /* number of receive sensors */ 503 u8 txports_cabled; /* bitmask of transmitters with cable */ 504 u8 rxports_active; /* bitmask of active receive sensors */ 505 bool learning_active; /* wideband rx is active */ 506 507 /* receiver carrier frequency detection support */ 508 u32 pulse_tunit; /* IR pulse "on" cumulative time units */ 509 u32 pulse_count; /* pulse "on" count in measurement interval */ 510 511 /* 512 * support for async error handler mceusb_deferred_kevent() 513 * where usb_clear_halt(), usb_reset_configuration(), 514 * usb_reset_device(), etc. must be done in process context 515 */ 516 struct work_struct kevent; 517 unsigned long kevent_flags; 518 # define EVENT_TX_HALT 0 519 # define EVENT_RX_HALT 1 520 }; 521 522 /* MCE Device Command Strings, generally a port and command pair */ 523 static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS, 524 MCE_CMD_RESUME}; 525 static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION}; 526 static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER}; 527 static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION}; 528 static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED}; 529 static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2}; 530 static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS}; 531 static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT}; 532 static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS}; 533 static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS}; 534 static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN}; 535 /* sub in desired values in lower byte or bytes for full command */ 536 /* FIXME: make use of these for transmit. 537 static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, 538 MCE_CMD_SETIRCFS, 0x00, 0x00}; 539 static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00}; 540 static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, 541 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00}; 542 static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR, 543 MCE_RSP_EQIRRXPORTEN, 0x00}; 544 */ 545 546 static int mceusb_cmd_datasize(u8 cmd, u8 subcmd) 547 { 548 int datasize = 0; 549 550 switch (cmd) { 551 case MCE_CMD_NULL: 552 if (subcmd == MCE_CMD_PORT_SYS) 553 datasize = 1; 554 break; 555 case MCE_CMD_PORT_SYS: 556 switch (subcmd) { 557 case MCE_RSP_GETPORTSTATUS: 558 datasize = 5; 559 break; 560 case MCE_RSP_EQWAKEVERSION: 561 datasize = 4; 562 break; 563 case MCE_CMD_G_REVISION: 564 datasize = 2; 565 break; 566 case MCE_RSP_EQWAKESUPPORT: 567 case MCE_RSP_GETWAKESOURCE: 568 case MCE_RSP_EQDEVDETAILS: 569 case MCE_RSP_EQEMVER: 570 datasize = 1; 571 break; 572 } 573 break; 574 case MCE_CMD_PORT_IR: 575 switch (subcmd) { 576 case MCE_CMD_UNKNOWN: 577 case MCE_RSP_EQIRCFS: 578 case MCE_RSP_EQIRTIMEOUT: 579 case MCE_RSP_EQIRRXCFCNT: 580 case MCE_RSP_EQIRNUMPORTS: 581 datasize = 2; 582 break; 583 case MCE_CMD_SIG_END: 584 case MCE_RSP_EQIRTXPORTS: 585 case MCE_RSP_EQIRRXPORTEN: 586 datasize = 1; 587 break; 588 } 589 } 590 return datasize; 591 } 592 593 static void mceusb_dev_printdata(struct mceusb_dev *ir, u8 *buf, int buf_len, 594 int offset, int len, bool out) 595 { 596 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) 597 char *inout; 598 u8 cmd, subcmd, *data; 599 struct device *dev = ir->dev; 600 int start, skip = 0; 601 u32 carrier, period; 602 603 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 604 if (ir->flags.microsoft_gen1 && !out && !offset) 605 skip = 2; 606 607 if (len <= skip) 608 return; 609 610 dev_dbg(dev, "%cx data: %*ph (length=%d)", 611 (out ? 't' : 'r'), 612 min(len, buf_len - offset), buf + offset, len); 613 614 inout = out ? "Request" : "Got"; 615 616 start = offset + skip; 617 cmd = buf[start] & 0xff; 618 subcmd = buf[start + 1] & 0xff; 619 data = buf + start + 2; 620 621 switch (cmd) { 622 case MCE_CMD_NULL: 623 if (subcmd == MCE_CMD_NULL) 624 break; 625 if ((subcmd == MCE_CMD_PORT_SYS) && 626 (data[0] == MCE_CMD_RESUME)) 627 dev_dbg(dev, "Device resume requested"); 628 else 629 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 630 cmd, subcmd); 631 break; 632 case MCE_CMD_PORT_SYS: 633 switch (subcmd) { 634 case MCE_RSP_EQEMVER: 635 if (!out) 636 dev_dbg(dev, "Emulator interface version %x", 637 data[0]); 638 break; 639 case MCE_CMD_G_REVISION: 640 if (len == 2) 641 dev_dbg(dev, "Get hw/sw rev?"); 642 else 643 dev_dbg(dev, "hw/sw rev %*ph", 644 4, &buf[start + 2]); 645 break; 646 case MCE_CMD_RESUME: 647 dev_dbg(dev, "Device resume requested"); 648 break; 649 case MCE_RSP_CMD_ILLEGAL: 650 dev_dbg(dev, "Illegal PORT_SYS command"); 651 break; 652 case MCE_RSP_EQWAKEVERSION: 653 if (!out) 654 dev_dbg(dev, "Wake version, proto: 0x%02x, payload: 0x%02x, address: 0x%02x, version: 0x%02x", 655 data[0], data[1], data[2], data[3]); 656 break; 657 case MCE_RSP_GETPORTSTATUS: 658 if (!out) 659 /* We use data1 + 1 here, to match hw labels */ 660 dev_dbg(dev, "TX port %d: blaster is%s connected", 661 data[0] + 1, data[3] ? " not" : ""); 662 break; 663 case MCE_CMD_FLASHLED: 664 dev_dbg(dev, "Attempting to flash LED"); 665 break; 666 default: 667 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 668 cmd, subcmd); 669 break; 670 } 671 break; 672 case MCE_CMD_PORT_IR: 673 switch (subcmd) { 674 case MCE_CMD_SIG_END: 675 dev_dbg(dev, "End of signal"); 676 break; 677 case MCE_CMD_PING: 678 dev_dbg(dev, "Ping"); 679 break; 680 case MCE_CMD_UNKNOWN: 681 dev_dbg(dev, "Resp to 9f 05 of 0x%02x 0x%02x", 682 data[0], data[1]); 683 break; 684 case MCE_RSP_EQIRCFS: 685 period = DIV_ROUND_CLOSEST((1U << data[0] * 2) * 686 (data[1] + 1), 10); 687 if (!period) 688 break; 689 carrier = (1000 * 1000) / period; 690 dev_dbg(dev, "%s carrier of %u Hz (period %uus)", 691 inout, carrier, period); 692 break; 693 case MCE_CMD_GETIRCFS: 694 dev_dbg(dev, "Get carrier mode and freq"); 695 break; 696 case MCE_RSP_EQIRTXPORTS: 697 dev_dbg(dev, "%s transmit blaster mask of 0x%02x", 698 inout, data[0]); 699 break; 700 case MCE_RSP_EQIRTIMEOUT: 701 /* value is in units of 50us, so x*50/1000 ms */ 702 period = ((data[0] << 8) | data[1]) * 703 MCE_TIME_UNIT / 1000; 704 dev_dbg(dev, "%s receive timeout of %d ms", 705 inout, period); 706 break; 707 case MCE_CMD_GETIRTIMEOUT: 708 dev_dbg(dev, "Get receive timeout"); 709 break; 710 case MCE_CMD_GETIRTXPORTS: 711 dev_dbg(dev, "Get transmit blaster mask"); 712 break; 713 case MCE_RSP_EQIRRXPORTEN: 714 dev_dbg(dev, "%s %s-range receive sensor in use", 715 inout, data[0] == 0x02 ? "short" : "long"); 716 break; 717 case MCE_CMD_GETIRRXPORTEN: 718 /* aka MCE_RSP_EQIRRXCFCNT */ 719 if (out) 720 dev_dbg(dev, "Get receive sensor"); 721 else 722 dev_dbg(dev, "RX carrier cycle count: %d", 723 ((data[0] << 8) | data[1])); 724 break; 725 case MCE_RSP_EQIRNUMPORTS: 726 if (out) 727 break; 728 dev_dbg(dev, "Num TX ports: %x, num RX ports: %x", 729 data[0], data[1]); 730 break; 731 case MCE_RSP_CMD_ILLEGAL: 732 dev_dbg(dev, "Illegal PORT_IR command"); 733 break; 734 default: 735 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 736 cmd, subcmd); 737 break; 738 } 739 break; 740 default: 741 break; 742 } 743 744 if (cmd == MCE_IRDATA_TRAILER) 745 dev_dbg(dev, "End of raw IR data"); 746 else if ((cmd != MCE_CMD_PORT_IR) && 747 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA)) 748 dev_dbg(dev, "Raw IR data, %d pulse/space samples", ir->rem); 749 #endif 750 } 751 752 /* 753 * Schedule work that can't be done in interrupt handlers 754 * (mceusb_dev_recv() and mce_async_callback()) nor tasklets. 755 * Invokes mceusb_deferred_kevent() for recovering from 756 * error events specified by the kevent bit field. 757 */ 758 static void mceusb_defer_kevent(struct mceusb_dev *ir, int kevent) 759 { 760 set_bit(kevent, &ir->kevent_flags); 761 if (!schedule_work(&ir->kevent)) 762 dev_err(ir->dev, "kevent %d may have been dropped", kevent); 763 else 764 dev_dbg(ir->dev, "kevent %d scheduled", kevent); 765 } 766 767 static void mce_async_callback(struct urb *urb) 768 { 769 struct mceusb_dev *ir; 770 int len; 771 772 if (!urb) 773 return; 774 775 ir = urb->context; 776 777 switch (urb->status) { 778 /* success */ 779 case 0: 780 len = urb->actual_length; 781 782 mceusb_dev_printdata(ir, urb->transfer_buffer, len, 783 0, len, true); 784 break; 785 786 case -ECONNRESET: 787 case -ENOENT: 788 case -EILSEQ: 789 case -ESHUTDOWN: 790 break; 791 792 case -EPIPE: 793 dev_err(ir->dev, "Error: request urb status = %d (TX HALT)", 794 urb->status); 795 mceusb_defer_kevent(ir, EVENT_TX_HALT); 796 break; 797 798 default: 799 dev_err(ir->dev, "Error: request urb status = %d", urb->status); 800 break; 801 } 802 803 /* the transfer buffer and urb were allocated in mce_request_packet */ 804 kfree(urb->transfer_buffer); 805 usb_free_urb(urb); 806 } 807 808 /* request outgoing (send) usb packet - used to initialize remote */ 809 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data, 810 int size) 811 { 812 int res; 813 struct urb *async_urb; 814 struct device *dev = ir->dev; 815 unsigned char *async_buf; 816 817 async_urb = usb_alloc_urb(0, GFP_KERNEL); 818 if (unlikely(!async_urb)) { 819 dev_err(dev, "Error, couldn't allocate urb!"); 820 return; 821 } 822 823 async_buf = kmalloc(size, GFP_KERNEL); 824 if (!async_buf) { 825 usb_free_urb(async_urb); 826 return; 827 } 828 829 /* outbound data */ 830 if (usb_endpoint_xfer_int(ir->usb_ep_out)) 831 usb_fill_int_urb(async_urb, ir->usbdev, ir->pipe_out, 832 async_buf, size, mce_async_callback, ir, 833 ir->usb_ep_out->bInterval); 834 else 835 usb_fill_bulk_urb(async_urb, ir->usbdev, ir->pipe_out, 836 async_buf, size, mce_async_callback, ir); 837 838 memcpy(async_buf, data, size); 839 840 dev_dbg(dev, "send request called (size=%#x)", size); 841 842 res = usb_submit_urb(async_urb, GFP_ATOMIC); 843 if (res) { 844 dev_err(dev, "send request FAILED! (res=%d)", res); 845 kfree(async_buf); 846 usb_free_urb(async_urb); 847 return; 848 } 849 dev_dbg(dev, "send request complete (res=%d)", res); 850 } 851 852 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) 853 { 854 int rsize = sizeof(DEVICE_RESUME); 855 856 if (ir->need_reset) { 857 ir->need_reset = false; 858 mce_request_packet(ir, DEVICE_RESUME, rsize); 859 msleep(10); 860 } 861 862 mce_request_packet(ir, data, size); 863 msleep(10); 864 } 865 866 /* Send data out the IR blaster port(s) */ 867 static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count) 868 { 869 struct mceusb_dev *ir = dev->priv; 870 int i, length, ret = 0; 871 int cmdcount = 0; 872 unsigned char cmdbuf[MCE_CMDBUF_SIZE]; 873 874 /* MCE tx init header */ 875 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR; 876 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS; 877 cmdbuf[cmdcount++] = ir->tx_mask; 878 879 /* Send the set TX ports command */ 880 mce_async_out(ir, cmdbuf, cmdcount); 881 cmdcount = 0; 882 883 /* Generate mce packet data */ 884 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { 885 txbuf[i] = txbuf[i] / MCE_TIME_UNIT; 886 887 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ 888 889 /* Insert mce packet header every 4th entry */ 890 if ((cmdcount < MCE_CMDBUF_SIZE) && 891 (cmdcount % MCE_CODE_LENGTH) == 0) 892 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; 893 894 /* Insert mce packet data */ 895 if (cmdcount < MCE_CMDBUF_SIZE) 896 cmdbuf[cmdcount++] = 897 (txbuf[i] < MCE_PULSE_BIT ? 898 txbuf[i] : MCE_MAX_PULSE_LENGTH) | 899 (i & 1 ? 0x00 : MCE_PULSE_BIT); 900 else { 901 ret = -EINVAL; 902 goto out; 903 } 904 905 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && 906 (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); 907 } 908 909 /* Check if we have room for the empty packet at the end */ 910 if (cmdcount >= MCE_CMDBUF_SIZE) { 911 ret = -EINVAL; 912 goto out; 913 } 914 915 /* Fix packet length in last header */ 916 length = cmdcount % MCE_CODE_LENGTH; 917 cmdbuf[cmdcount - length] -= MCE_CODE_LENGTH - length; 918 919 /* All mce commands end with an empty packet (0x80) */ 920 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; 921 922 /* Transmit the command to the mce device */ 923 mce_async_out(ir, cmdbuf, cmdcount); 924 925 out: 926 return ret ? ret : count; 927 } 928 929 /* Sets active IR outputs -- mce devices typically have two */ 930 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) 931 { 932 struct mceusb_dev *ir = dev->priv; 933 934 /* return number of transmitters */ 935 int emitters = ir->num_txports ? ir->num_txports : 2; 936 937 if (mask >= (1 << emitters)) 938 return emitters; 939 940 if (ir->flags.tx_mask_normal) 941 ir->tx_mask = mask; 942 else 943 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? 944 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; 945 946 return 0; 947 } 948 949 /* Sets the send carrier frequency and mode */ 950 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier) 951 { 952 struct mceusb_dev *ir = dev->priv; 953 int clk = 10000000; 954 int prescaler = 0, divisor = 0; 955 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR, 956 MCE_CMD_SETIRCFS, 0x00, 0x00 }; 957 958 /* Carrier has changed */ 959 if (ir->carrier != carrier) { 960 961 if (carrier == 0) { 962 ir->carrier = carrier; 963 cmdbuf[2] = MCE_CMD_SIG_END; 964 cmdbuf[3] = MCE_IRDATA_TRAILER; 965 dev_dbg(ir->dev, "disabling carrier modulation"); 966 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 967 return 0; 968 } 969 970 for (prescaler = 0; prescaler < 4; ++prescaler) { 971 divisor = (clk >> (2 * prescaler)) / carrier; 972 if (divisor <= 0xff) { 973 ir->carrier = carrier; 974 cmdbuf[2] = prescaler; 975 cmdbuf[3] = divisor; 976 dev_dbg(ir->dev, "requesting %u HZ carrier", 977 carrier); 978 979 /* Transmit new carrier to mce device */ 980 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 981 return 0; 982 } 983 } 984 985 return -EINVAL; 986 987 } 988 989 return 0; 990 } 991 992 static int mceusb_set_timeout(struct rc_dev *dev, unsigned int timeout) 993 { 994 u8 cmdbuf[4] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRTIMEOUT, 0, 0 }; 995 struct mceusb_dev *ir = dev->priv; 996 unsigned int units; 997 998 units = DIV_ROUND_CLOSEST(timeout, US_TO_NS(MCE_TIME_UNIT)); 999 1000 cmdbuf[2] = units >> 8; 1001 cmdbuf[3] = units; 1002 1003 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1004 1005 /* get receiver timeout value */ 1006 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1007 1008 return 0; 1009 } 1010 1011 /* 1012 * Select or deselect the 2nd receiver port. 1013 * Second receiver is learning mode, wide-band, short-range receiver. 1014 * Only one receiver (long or short range) may be active at a time. 1015 */ 1016 static int mceusb_set_rx_wideband(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, "select %s-range receive sensor", 1023 enable ? "short" : "long"); 1024 if (enable) { 1025 ir->wideband_rx_enabled = true; 1026 cmdbuf[2] = 2; /* port 2 is short range receiver */ 1027 } else { 1028 ir->wideband_rx_enabled = false; 1029 cmdbuf[2] = 1; /* port 1 is long range receiver */ 1030 } 1031 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1032 /* response from device sets ir->learning_active */ 1033 1034 return 0; 1035 } 1036 1037 /* 1038 * Enable/disable receiver carrier frequency pass through reporting. 1039 * Only the short-range receiver has carrier frequency measuring capability. 1040 * Implicitly select this receiver when enabling carrier frequency reporting. 1041 */ 1042 static int mceusb_set_rx_carrier_report(struct rc_dev *dev, int enable) 1043 { 1044 struct mceusb_dev *ir = dev->priv; 1045 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR, 1046 MCE_CMD_SETIRRXPORTEN, 0x00 }; 1047 1048 dev_dbg(ir->dev, "%s short-range receiver carrier reporting", 1049 enable ? "enable" : "disable"); 1050 if (enable) { 1051 ir->carrier_report_enabled = true; 1052 if (!ir->learning_active) { 1053 cmdbuf[2] = 2; /* port 2 is short range receiver */ 1054 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1055 } 1056 } else { 1057 ir->carrier_report_enabled = false; 1058 /* 1059 * Revert to normal (long-range) receiver only if the 1060 * wideband (short-range) receiver wasn't explicitly 1061 * enabled. 1062 */ 1063 if (ir->learning_active && !ir->wideband_rx_enabled) { 1064 cmdbuf[2] = 1; /* port 1 is long range receiver */ 1065 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1066 } 1067 } 1068 1069 return 0; 1070 } 1071 1072 /* 1073 * We don't do anything but print debug spew for many of the command bits 1074 * we receive from the hardware, but some of them are useful information 1075 * we want to store so that we can use them. 1076 */ 1077 static void mceusb_handle_command(struct mceusb_dev *ir, int index) 1078 { 1079 struct ir_raw_event rawir = {}; 1080 u8 hi = ir->buf_in[index + 1] & 0xff; 1081 u8 lo = ir->buf_in[index + 2] & 0xff; 1082 u32 carrier_cycles; 1083 u32 cycles_fix; 1084 1085 switch (ir->buf_in[index]) { 1086 /* the one and only 5-byte return value command */ 1087 case MCE_RSP_GETPORTSTATUS: 1088 if ((ir->buf_in[index + 4] & 0xff) == 0x00) 1089 ir->txports_cabled |= 1 << hi; 1090 break; 1091 1092 /* 2-byte return value commands */ 1093 case MCE_RSP_EQIRTIMEOUT: 1094 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT); 1095 break; 1096 case MCE_RSP_EQIRNUMPORTS: 1097 ir->num_txports = hi; 1098 ir->num_rxports = lo; 1099 break; 1100 case MCE_RSP_EQIRRXCFCNT: 1101 /* 1102 * The carrier cycle counter can overflow and wrap around 1103 * without notice from the device. So frequency measurement 1104 * will be inaccurate with long duration IR. 1105 * 1106 * The long-range (non learning) receiver always reports 1107 * zero count so we always ignore its report. 1108 */ 1109 if (ir->carrier_report_enabled && ir->learning_active && 1110 ir->pulse_tunit > 0) { 1111 carrier_cycles = (hi << 8 | lo); 1112 /* 1113 * Adjust carrier cycle count by adding 1114 * 1 missed count per pulse "on" 1115 */ 1116 cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0; 1117 rawir.carrier_report = 1; 1118 rawir.carrier = (1000000u / MCE_TIME_UNIT) * 1119 (carrier_cycles + cycles_fix) / 1120 ir->pulse_tunit; 1121 dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = %u)", 1122 rawir.carrier, ir->pulse_count, carrier_cycles, 1123 ir->pulse_tunit, ir->flags.rx2); 1124 ir_raw_event_store(ir->rc, &rawir); 1125 } 1126 break; 1127 1128 /* 1-byte return value commands */ 1129 case MCE_RSP_EQEMVER: 1130 ir->emver = hi; 1131 break; 1132 case MCE_RSP_EQIRTXPORTS: 1133 ir->tx_mask = hi; 1134 break; 1135 case MCE_RSP_EQIRRXPORTEN: 1136 ir->learning_active = ((hi & 0x02) == 0x02); 1137 if (ir->rxports_active != hi) { 1138 dev_info(ir->dev, "%s-range (0x%x) receiver active", 1139 ir->learning_active ? "short" : "long", hi); 1140 ir->rxports_active = hi; 1141 } 1142 break; 1143 case MCE_RSP_CMD_ILLEGAL: 1144 ir->need_reset = true; 1145 break; 1146 default: 1147 break; 1148 } 1149 } 1150 1151 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) 1152 { 1153 struct ir_raw_event rawir = {}; 1154 bool event = false; 1155 int i = 0; 1156 1157 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 1158 if (ir->flags.microsoft_gen1) 1159 i = 2; 1160 1161 /* if there's no data, just return now */ 1162 if (buf_len <= i) 1163 return; 1164 1165 for (; i < buf_len; i++) { 1166 switch (ir->parser_state) { 1167 case SUBCMD: 1168 ir->rem = mceusb_cmd_datasize(ir->cmd, ir->buf_in[i]); 1169 mceusb_dev_printdata(ir, ir->buf_in, buf_len, i - 1, 1170 ir->rem + 2, false); 1171 mceusb_handle_command(ir, i); 1172 ir->parser_state = CMD_DATA; 1173 break; 1174 case PARSE_IRDATA: 1175 ir->rem--; 1176 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); 1177 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK); 1178 if (unlikely(!rawir.duration)) { 1179 dev_dbg(ir->dev, "nonsensical irdata %02x with duration 0", 1180 ir->buf_in[i]); 1181 break; 1182 } 1183 if (rawir.pulse) { 1184 ir->pulse_tunit += rawir.duration; 1185 ir->pulse_count++; 1186 } 1187 rawir.duration *= US_TO_NS(MCE_TIME_UNIT); 1188 1189 dev_dbg(ir->dev, "Storing %s %u ns (%02x)", 1190 rawir.pulse ? "pulse" : "space", 1191 rawir.duration, ir->buf_in[i]); 1192 1193 if (ir_raw_event_store_with_filter(ir->rc, &rawir)) 1194 event = true; 1195 break; 1196 case CMD_DATA: 1197 ir->rem--; 1198 break; 1199 case CMD_HEADER: 1200 /* decode mce packets of the form (84),AA,BB,CC,DD */ 1201 /* IR data packets can span USB messages - rem */ 1202 ir->cmd = ir->buf_in[i]; 1203 if ((ir->cmd == MCE_CMD_PORT_IR) || 1204 ((ir->cmd & MCE_PORT_MASK) != 1205 MCE_COMMAND_IRDATA)) { 1206 ir->parser_state = SUBCMD; 1207 continue; 1208 } 1209 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); 1210 mceusb_dev_printdata(ir, ir->buf_in, buf_len, 1211 i, ir->rem + 1, false); 1212 if (ir->rem) { 1213 ir->parser_state = PARSE_IRDATA; 1214 } else { 1215 struct ir_raw_event ev = { 1216 .timeout = 1, 1217 .duration = ir->rc->timeout 1218 }; 1219 1220 if (ir_raw_event_store_with_filter(ir->rc, 1221 &ev)) 1222 event = true; 1223 ir->pulse_tunit = 0; 1224 ir->pulse_count = 0; 1225 } 1226 break; 1227 } 1228 1229 if (ir->parser_state != CMD_HEADER && !ir->rem) 1230 ir->parser_state = CMD_HEADER; 1231 } 1232 if (event) { 1233 dev_dbg(ir->dev, "processed IR data"); 1234 ir_raw_event_handle(ir->rc); 1235 } 1236 } 1237 1238 static void mceusb_dev_recv(struct urb *urb) 1239 { 1240 struct mceusb_dev *ir; 1241 1242 if (!urb) 1243 return; 1244 1245 ir = urb->context; 1246 if (!ir) { 1247 usb_unlink_urb(urb); 1248 return; 1249 } 1250 1251 switch (urb->status) { 1252 /* success */ 1253 case 0: 1254 mceusb_process_ir_data(ir, urb->actual_length); 1255 break; 1256 1257 case -ECONNRESET: 1258 case -ENOENT: 1259 case -EILSEQ: 1260 case -ESHUTDOWN: 1261 usb_unlink_urb(urb); 1262 return; 1263 1264 case -EPIPE: 1265 dev_err(ir->dev, "Error: urb status = %d (RX HALT)", 1266 urb->status); 1267 mceusb_defer_kevent(ir, EVENT_RX_HALT); 1268 return; 1269 1270 default: 1271 dev_err(ir->dev, "Error: urb status = %d", urb->status); 1272 break; 1273 } 1274 1275 usb_submit_urb(urb, GFP_ATOMIC); 1276 } 1277 1278 static void mceusb_get_emulator_version(struct mceusb_dev *ir) 1279 { 1280 /* If we get no reply or an illegal command reply, its ver 1, says MS */ 1281 ir->emver = 1; 1282 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER)); 1283 } 1284 1285 static void mceusb_gen1_init(struct mceusb_dev *ir) 1286 { 1287 int ret; 1288 struct device *dev = ir->dev; 1289 char *data; 1290 1291 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); 1292 if (!data) { 1293 dev_err(dev, "%s: memory allocation failed!", __func__); 1294 return; 1295 } 1296 1297 /* 1298 * This is a strange one. Windows issues a set address to the device 1299 * on the receive control pipe and expect a certain value pair back 1300 */ 1301 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), 1302 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, 1303 data, USB_CTRL_MSG_SZ, HZ * 3); 1304 dev_dbg(dev, "set address - ret = %d", ret); 1305 dev_dbg(dev, "set address - data[0] = %d, data[1] = %d", 1306 data[0], data[1]); 1307 1308 /* set feature: bit rate 38400 bps */ 1309 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1310 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, 1311 0xc04e, 0x0000, NULL, 0, HZ * 3); 1312 1313 dev_dbg(dev, "set feature - ret = %d", ret); 1314 1315 /* bRequest 4: set char length to 8 bits */ 1316 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1317 4, USB_TYPE_VENDOR, 1318 0x0808, 0x0000, NULL, 0, HZ * 3); 1319 dev_dbg(dev, "set char length - retB = %d", ret); 1320 1321 /* bRequest 2: set handshaking to use DTR/DSR */ 1322 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1323 2, USB_TYPE_VENDOR, 1324 0x0000, 0x0100, NULL, 0, HZ * 3); 1325 dev_dbg(dev, "set handshake - retC = %d", ret); 1326 1327 /* device resume */ 1328 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1329 1330 /* get hw/sw revision? */ 1331 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1332 1333 kfree(data); 1334 } 1335 1336 static void mceusb_gen2_init(struct mceusb_dev *ir) 1337 { 1338 /* device resume */ 1339 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1340 1341 /* get wake version (protocol, key, address) */ 1342 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION)); 1343 1344 /* unknown what this one actually returns... */ 1345 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); 1346 } 1347 1348 static void mceusb_get_parameters(struct mceusb_dev *ir) 1349 { 1350 int i; 1351 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS, 1352 MCE_CMD_GETPORTSTATUS, 0x00 }; 1353 1354 /* defaults, if the hardware doesn't support querying */ 1355 ir->num_txports = 2; 1356 ir->num_rxports = 2; 1357 1358 /* get number of tx and rx ports */ 1359 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS)); 1360 1361 /* get the carrier and frequency */ 1362 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); 1363 1364 if (ir->num_txports && !ir->flags.no_tx) 1365 /* get the transmitter bitmask */ 1366 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); 1367 1368 /* get receiver timeout value */ 1369 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1370 1371 /* get receiver sensor setting */ 1372 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); 1373 1374 for (i = 0; i < ir->num_txports; i++) { 1375 cmdbuf[2] = i; 1376 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1377 } 1378 } 1379 1380 static void mceusb_flash_led(struct mceusb_dev *ir) 1381 { 1382 if (ir->emver < 2) 1383 return; 1384 1385 mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED)); 1386 } 1387 1388 /* 1389 * Workqueue function 1390 * for resetting or recovering device after occurrence of error events 1391 * specified in ir->kevent bit field. 1392 * Function runs (via schedule_work()) in non-interrupt context, for 1393 * calls here (such as usb_clear_halt()) requiring non-interrupt context. 1394 */ 1395 static void mceusb_deferred_kevent(struct work_struct *work) 1396 { 1397 struct mceusb_dev *ir = 1398 container_of(work, struct mceusb_dev, kevent); 1399 int status; 1400 1401 if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) { 1402 usb_unlink_urb(ir->urb_in); 1403 status = usb_clear_halt(ir->usbdev, ir->pipe_in); 1404 if (status < 0) { 1405 dev_err(ir->dev, "rx clear halt error %d", 1406 status); 1407 } 1408 clear_bit(EVENT_RX_HALT, &ir->kevent_flags); 1409 if (status == 0) { 1410 status = usb_submit_urb(ir->urb_in, GFP_KERNEL); 1411 if (status < 0) { 1412 dev_err(ir->dev, 1413 "rx unhalt submit urb error %d", 1414 status); 1415 } 1416 } 1417 } 1418 1419 if (test_bit(EVENT_TX_HALT, &ir->kevent_flags)) { 1420 status = usb_clear_halt(ir->usbdev, ir->pipe_out); 1421 if (status < 0) 1422 dev_err(ir->dev, "tx clear halt error %d", status); 1423 clear_bit(EVENT_TX_HALT, &ir->kevent_flags); 1424 } 1425 } 1426 1427 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) 1428 { 1429 struct usb_device *udev = ir->usbdev; 1430 struct device *dev = ir->dev; 1431 struct rc_dev *rc; 1432 int ret; 1433 1434 rc = rc_allocate_device(RC_DRIVER_IR_RAW); 1435 if (!rc) { 1436 dev_err(dev, "remote dev allocation failed"); 1437 goto out; 1438 } 1439 1440 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", 1441 mceusb_model[ir->model].name ? 1442 mceusb_model[ir->model].name : 1443 "Media Center Ed. eHome Infrared Remote Transceiver", 1444 le16_to_cpu(ir->usbdev->descriptor.idVendor), 1445 le16_to_cpu(ir->usbdev->descriptor.idProduct)); 1446 1447 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); 1448 1449 rc->device_name = ir->name; 1450 rc->input_phys = ir->phys; 1451 usb_to_input_id(ir->usbdev, &rc->input_id); 1452 rc->dev.parent = dev; 1453 rc->priv = ir; 1454 rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER; 1455 rc->min_timeout = US_TO_NS(MCE_TIME_UNIT); 1456 rc->timeout = MS_TO_NS(100); 1457 if (!mceusb_model[ir->model].broken_irtimeout) { 1458 rc->s_timeout = mceusb_set_timeout; 1459 rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT; 1460 } else { 1461 /* 1462 * If we can't set the timeout using CMD_SETIRTIMEOUT, we can 1463 * rely on software timeouts for timeouts < 100ms. 1464 */ 1465 rc->max_timeout = rc->timeout; 1466 } 1467 if (!ir->flags.no_tx) { 1468 rc->s_tx_mask = mceusb_set_tx_mask; 1469 rc->s_tx_carrier = mceusb_set_tx_carrier; 1470 rc->tx_ir = mceusb_tx_ir; 1471 } 1472 if (ir->flags.rx2 > 0) { 1473 rc->s_learning_mode = mceusb_set_rx_wideband; 1474 rc->s_carrier_report = mceusb_set_rx_carrier_report; 1475 } 1476 rc->driver_name = DRIVER_NAME; 1477 1478 switch (le16_to_cpu(udev->descriptor.idVendor)) { 1479 case VENDOR_HAUPPAUGE: 1480 rc->map_name = RC_MAP_HAUPPAUGE; 1481 break; 1482 case VENDOR_PCTV: 1483 rc->map_name = RC_MAP_PINNACLE_PCTV_HD; 1484 break; 1485 default: 1486 rc->map_name = RC_MAP_RC6_MCE; 1487 } 1488 if (mceusb_model[ir->model].rc_map) 1489 rc->map_name = mceusb_model[ir->model].rc_map; 1490 1491 ret = rc_register_device(rc); 1492 if (ret < 0) { 1493 dev_err(dev, "remote dev registration failed"); 1494 goto out; 1495 } 1496 1497 return rc; 1498 1499 out: 1500 rc_free_device(rc); 1501 return NULL; 1502 } 1503 1504 static int mceusb_dev_probe(struct usb_interface *intf, 1505 const struct usb_device_id *id) 1506 { 1507 struct usb_device *dev = interface_to_usbdev(intf); 1508 struct usb_host_interface *idesc; 1509 struct usb_endpoint_descriptor *ep = NULL; 1510 struct usb_endpoint_descriptor *ep_in = NULL; 1511 struct usb_endpoint_descriptor *ep_out = NULL; 1512 struct mceusb_dev *ir = NULL; 1513 int pipe, maxp, i, res; 1514 char buf[63], name[128] = ""; 1515 enum mceusb_model_type model = id->driver_info; 1516 bool is_gen3; 1517 bool is_microsoft_gen1; 1518 bool tx_mask_normal; 1519 int ir_intfnum; 1520 1521 dev_dbg(&intf->dev, "%s called", __func__); 1522 1523 idesc = intf->cur_altsetting; 1524 1525 is_gen3 = mceusb_model[model].mce_gen3; 1526 is_microsoft_gen1 = mceusb_model[model].mce_gen1; 1527 tx_mask_normal = mceusb_model[model].tx_mask_normal; 1528 ir_intfnum = mceusb_model[model].ir_intfnum; 1529 1530 /* There are multi-function devices with non-IR interfaces */ 1531 if (idesc->desc.bInterfaceNumber != ir_intfnum) 1532 return -ENODEV; 1533 1534 /* step through the endpoints to find first bulk in and out endpoint */ 1535 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { 1536 ep = &idesc->endpoint[i].desc; 1537 1538 if (ep_in == NULL) { 1539 if (usb_endpoint_is_bulk_in(ep)) { 1540 ep_in = ep; 1541 dev_dbg(&intf->dev, "acceptable bulk inbound endpoint found\n"); 1542 } else if (usb_endpoint_is_int_in(ep)) { 1543 ep_in = ep; 1544 ep_in->bInterval = 1; 1545 dev_dbg(&intf->dev, "acceptable interrupt inbound endpoint found\n"); 1546 } 1547 } 1548 1549 if (ep_out == NULL) { 1550 if (usb_endpoint_is_bulk_out(ep)) { 1551 ep_out = ep; 1552 dev_dbg(&intf->dev, "acceptable bulk outbound endpoint found\n"); 1553 } else if (usb_endpoint_is_int_out(ep)) { 1554 ep_out = ep; 1555 ep_out->bInterval = 1; 1556 dev_dbg(&intf->dev, "acceptable interrupt outbound endpoint found\n"); 1557 } 1558 } 1559 } 1560 if (!ep_in || !ep_out) { 1561 dev_dbg(&intf->dev, "required endpoints not found\n"); 1562 return -ENODEV; 1563 } 1564 1565 if (usb_endpoint_xfer_int(ep_in)) 1566 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); 1567 else 1568 pipe = usb_rcvbulkpipe(dev, ep_in->bEndpointAddress); 1569 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 1570 1571 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); 1572 if (!ir) 1573 goto mem_alloc_fail; 1574 1575 ir->pipe_in = pipe; 1576 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); 1577 if (!ir->buf_in) 1578 goto buf_in_alloc_fail; 1579 1580 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); 1581 if (!ir->urb_in) 1582 goto urb_in_alloc_fail; 1583 1584 ir->usbdev = usb_get_dev(dev); 1585 ir->dev = &intf->dev; 1586 ir->len_in = maxp; 1587 ir->flags.microsoft_gen1 = is_microsoft_gen1; 1588 ir->flags.tx_mask_normal = tx_mask_normal; 1589 ir->flags.no_tx = mceusb_model[model].no_tx; 1590 ir->flags.rx2 = mceusb_model[model].rx2; 1591 ir->model = model; 1592 1593 /* Saving usb interface data for use by the transmitter routine */ 1594 ir->usb_ep_out = ep_out; 1595 if (usb_endpoint_xfer_int(ep_out)) 1596 ir->pipe_out = usb_sndintpipe(ir->usbdev, 1597 ep_out->bEndpointAddress); 1598 else 1599 ir->pipe_out = usb_sndbulkpipe(ir->usbdev, 1600 ep_out->bEndpointAddress); 1601 1602 if (dev->descriptor.iManufacturer 1603 && usb_string(dev, dev->descriptor.iManufacturer, 1604 buf, sizeof(buf)) > 0) 1605 strscpy(name, buf, sizeof(name)); 1606 if (dev->descriptor.iProduct 1607 && usb_string(dev, dev->descriptor.iProduct, 1608 buf, sizeof(buf)) > 0) 1609 snprintf(name + strlen(name), sizeof(name) - strlen(name), 1610 " %s", buf); 1611 1612 /* 1613 * Initialize async USB error handler before registering 1614 * or activating any mceusb RX and TX functions 1615 */ 1616 INIT_WORK(&ir->kevent, mceusb_deferred_kevent); 1617 1618 ir->rc = mceusb_init_rc_dev(ir); 1619 if (!ir->rc) 1620 goto rc_dev_fail; 1621 1622 /* wire up inbound data handler */ 1623 if (usb_endpoint_xfer_int(ep_in)) 1624 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, 1625 mceusb_dev_recv, ir, ep_in->bInterval); 1626 else 1627 usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, 1628 mceusb_dev_recv, ir); 1629 1630 ir->urb_in->transfer_dma = ir->dma_in; 1631 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1632 1633 /* flush buffers on the device */ 1634 dev_dbg(&intf->dev, "Flushing receive buffers"); 1635 res = usb_submit_urb(ir->urb_in, GFP_KERNEL); 1636 if (res) 1637 dev_err(&intf->dev, "failed to flush buffers: %d", res); 1638 1639 /* figure out which firmware/emulator version this hardware has */ 1640 mceusb_get_emulator_version(ir); 1641 1642 /* initialize device */ 1643 if (ir->flags.microsoft_gen1) 1644 mceusb_gen1_init(ir); 1645 else if (!is_gen3) 1646 mceusb_gen2_init(ir); 1647 1648 mceusb_get_parameters(ir); 1649 1650 mceusb_flash_led(ir); 1651 1652 if (!ir->flags.no_tx) 1653 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); 1654 1655 usb_set_intfdata(intf, ir); 1656 1657 /* enable wake via this device */ 1658 device_set_wakeup_capable(ir->dev, true); 1659 device_set_wakeup_enable(ir->dev, true); 1660 1661 dev_info(&intf->dev, "Registered %s with mce emulator interface version %x", 1662 name, ir->emver); 1663 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and %x rx sensors (0x%x active)", 1664 ir->num_txports, ir->txports_cabled, 1665 ir->num_rxports, ir->rxports_active); 1666 1667 return 0; 1668 1669 /* Error-handling path */ 1670 rc_dev_fail: 1671 cancel_work_sync(&ir->kevent); 1672 usb_put_dev(ir->usbdev); 1673 usb_kill_urb(ir->urb_in); 1674 usb_free_urb(ir->urb_in); 1675 urb_in_alloc_fail: 1676 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); 1677 buf_in_alloc_fail: 1678 kfree(ir); 1679 mem_alloc_fail: 1680 dev_err(&intf->dev, "%s: device setup failed!", __func__); 1681 1682 return -ENOMEM; 1683 } 1684 1685 1686 static void mceusb_dev_disconnect(struct usb_interface *intf) 1687 { 1688 struct usb_device *dev = interface_to_usbdev(intf); 1689 struct mceusb_dev *ir = usb_get_intfdata(intf); 1690 1691 usb_set_intfdata(intf, NULL); 1692 1693 if (!ir) 1694 return; 1695 1696 ir->usbdev = NULL; 1697 cancel_work_sync(&ir->kevent); 1698 rc_unregister_device(ir->rc); 1699 usb_kill_urb(ir->urb_in); 1700 usb_free_urb(ir->urb_in); 1701 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); 1702 usb_put_dev(dev); 1703 1704 kfree(ir); 1705 } 1706 1707 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) 1708 { 1709 struct mceusb_dev *ir = usb_get_intfdata(intf); 1710 dev_info(ir->dev, "suspend"); 1711 usb_kill_urb(ir->urb_in); 1712 return 0; 1713 } 1714 1715 static int mceusb_dev_resume(struct usb_interface *intf) 1716 { 1717 struct mceusb_dev *ir = usb_get_intfdata(intf); 1718 dev_info(ir->dev, "resume"); 1719 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) 1720 return -EIO; 1721 return 0; 1722 } 1723 1724 static struct usb_driver mceusb_dev_driver = { 1725 .name = DRIVER_NAME, 1726 .probe = mceusb_dev_probe, 1727 .disconnect = mceusb_dev_disconnect, 1728 .suspend = mceusb_dev_suspend, 1729 .resume = mceusb_dev_resume, 1730 .reset_resume = mceusb_dev_resume, 1731 .id_table = mceusb_dev_table 1732 }; 1733 1734 module_usb_driver(mceusb_dev_driver); 1735 1736 MODULE_DESCRIPTION(DRIVER_DESC); 1737 MODULE_AUTHOR(DRIVER_AUTHOR); 1738 MODULE_LICENSE("GPL"); 1739 MODULE_DEVICE_TABLE(usb, mceusb_dev_table); 1740