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 usb_interface *usbintf; 465 struct urb *urb_in; 466 unsigned int pipe_in; 467 struct usb_endpoint_descriptor *usb_ep_out; 468 unsigned int pipe_out; 469 470 /* buffers and dma */ 471 unsigned char *buf_in; 472 unsigned int len_in; 473 dma_addr_t dma_in; 474 475 enum { 476 CMD_HEADER = 0, 477 SUBCMD, 478 CMD_DATA, 479 PARSE_IRDATA, 480 } parser_state; 481 482 u8 cmd, rem; /* Remaining IR data bytes in packet */ 483 484 struct { 485 u32 connected:1; 486 u32 tx_mask_normal:1; 487 u32 microsoft_gen1:1; 488 u32 no_tx:1; 489 u32 rx2; 490 } flags; 491 492 /* transmit support */ 493 u32 carrier; 494 unsigned char tx_mask; 495 496 char name[128]; 497 char phys[64]; 498 enum mceusb_model_type model; 499 500 bool need_reset; /* flag to issue a device resume cmd */ 501 u8 emver; /* emulator interface version */ 502 u8 num_txports; /* number of transmit ports */ 503 u8 num_rxports; /* number of receive sensors */ 504 u8 txports_cabled; /* bitmask of transmitters with cable */ 505 u8 rxports_active; /* bitmask of active receive sensors */ 506 bool learning_active; /* wideband rx is active */ 507 508 /* receiver carrier frequency detection support */ 509 u32 pulse_tunit; /* IR pulse "on" cumulative time units */ 510 u32 pulse_count; /* pulse "on" count in measurement interval */ 511 512 /* 513 * support for async error handler mceusb_deferred_kevent() 514 * where usb_clear_halt(), usb_reset_configuration(), 515 * usb_reset_device(), etc. must be done in process context 516 */ 517 struct work_struct kevent; 518 unsigned long kevent_flags; 519 # define EVENT_TX_HALT 0 520 # define EVENT_RX_HALT 1 521 # define EVENT_RST_PEND 31 522 }; 523 524 /* MCE Device Command Strings, generally a port and command pair */ 525 static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS, 526 MCE_CMD_RESUME}; 527 static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION}; 528 static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER}; 529 static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION}; 530 static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED}; 531 static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2}; 532 static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS}; 533 static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT}; 534 static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS}; 535 static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS}; 536 static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN}; 537 /* sub in desired values in lower byte or bytes for full command */ 538 /* FIXME: make use of these for transmit. 539 static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, 540 MCE_CMD_SETIRCFS, 0x00, 0x00}; 541 static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00}; 542 static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, 543 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00}; 544 static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR, 545 MCE_RSP_EQIRRXPORTEN, 0x00}; 546 */ 547 548 static int mceusb_cmd_datasize(u8 cmd, u8 subcmd) 549 { 550 int datasize = 0; 551 552 switch (cmd) { 553 case MCE_CMD_NULL: 554 if (subcmd == MCE_CMD_PORT_SYS) 555 datasize = 1; 556 break; 557 case MCE_CMD_PORT_SYS: 558 switch (subcmd) { 559 case MCE_RSP_GETPORTSTATUS: 560 datasize = 5; 561 break; 562 case MCE_RSP_EQWAKEVERSION: 563 datasize = 4; 564 break; 565 case MCE_CMD_G_REVISION: 566 datasize = 2; 567 break; 568 case MCE_RSP_EQWAKESUPPORT: 569 case MCE_RSP_GETWAKESOURCE: 570 case MCE_RSP_EQDEVDETAILS: 571 case MCE_RSP_EQEMVER: 572 datasize = 1; 573 break; 574 } 575 break; 576 case MCE_CMD_PORT_IR: 577 switch (subcmd) { 578 case MCE_CMD_UNKNOWN: 579 case MCE_RSP_EQIRCFS: 580 case MCE_RSP_EQIRTIMEOUT: 581 case MCE_RSP_EQIRRXCFCNT: 582 case MCE_RSP_EQIRNUMPORTS: 583 datasize = 2; 584 break; 585 case MCE_CMD_SIG_END: 586 case MCE_RSP_EQIRTXPORTS: 587 case MCE_RSP_EQIRRXPORTEN: 588 datasize = 1; 589 break; 590 } 591 } 592 return datasize; 593 } 594 595 static void mceusb_dev_printdata(struct mceusb_dev *ir, u8 *buf, int buf_len, 596 int offset, int len, bool out) 597 { 598 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) 599 char *inout; 600 u8 cmd, subcmd, *data; 601 struct device *dev = ir->dev; 602 int start, skip = 0; 603 u32 carrier, period; 604 605 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 606 if (ir->flags.microsoft_gen1 && !out && !offset) 607 skip = 2; 608 609 if (len <= skip) 610 return; 611 612 dev_dbg(dev, "%cx data: %*ph (length=%d)", 613 (out ? 't' : 'r'), 614 min(len, buf_len - offset), buf + offset, len); 615 616 inout = out ? "Request" : "Got"; 617 618 start = offset + skip; 619 cmd = buf[start] & 0xff; 620 subcmd = buf[start + 1] & 0xff; 621 data = buf + start + 2; 622 623 switch (cmd) { 624 case MCE_CMD_NULL: 625 if (subcmd == MCE_CMD_NULL) 626 break; 627 if ((subcmd == MCE_CMD_PORT_SYS) && 628 (data[0] == MCE_CMD_RESUME)) 629 dev_dbg(dev, "Device resume requested"); 630 else 631 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 632 cmd, subcmd); 633 break; 634 case MCE_CMD_PORT_SYS: 635 switch (subcmd) { 636 case MCE_RSP_EQEMVER: 637 if (!out) 638 dev_dbg(dev, "Emulator interface version %x", 639 data[0]); 640 break; 641 case MCE_CMD_G_REVISION: 642 if (len == 2) 643 dev_dbg(dev, "Get hw/sw rev?"); 644 else 645 dev_dbg(dev, "hw/sw rev %*ph", 646 4, &buf[start + 2]); 647 break; 648 case MCE_CMD_RESUME: 649 dev_dbg(dev, "Device resume requested"); 650 break; 651 case MCE_RSP_CMD_ILLEGAL: 652 dev_dbg(dev, "Illegal PORT_SYS command"); 653 break; 654 case MCE_RSP_EQWAKEVERSION: 655 if (!out) 656 dev_dbg(dev, "Wake version, proto: 0x%02x, payload: 0x%02x, address: 0x%02x, version: 0x%02x", 657 data[0], data[1], data[2], data[3]); 658 break; 659 case MCE_RSP_GETPORTSTATUS: 660 if (!out) 661 /* We use data1 + 1 here, to match hw labels */ 662 dev_dbg(dev, "TX port %d: blaster is%s connected", 663 data[0] + 1, data[3] ? " not" : ""); 664 break; 665 case MCE_CMD_FLASHLED: 666 dev_dbg(dev, "Attempting to flash LED"); 667 break; 668 default: 669 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 670 cmd, subcmd); 671 break; 672 } 673 break; 674 case MCE_CMD_PORT_IR: 675 switch (subcmd) { 676 case MCE_CMD_SIG_END: 677 dev_dbg(dev, "End of signal"); 678 break; 679 case MCE_CMD_PING: 680 dev_dbg(dev, "Ping"); 681 break; 682 case MCE_CMD_UNKNOWN: 683 dev_dbg(dev, "Resp to 9f 05 of 0x%02x 0x%02x", 684 data[0], data[1]); 685 break; 686 case MCE_RSP_EQIRCFS: 687 period = DIV_ROUND_CLOSEST((1U << data[0] * 2) * 688 (data[1] + 1), 10); 689 if (!period) 690 break; 691 carrier = (1000 * 1000) / period; 692 dev_dbg(dev, "%s carrier of %u Hz (period %uus)", 693 inout, carrier, period); 694 break; 695 case MCE_CMD_GETIRCFS: 696 dev_dbg(dev, "Get carrier mode and freq"); 697 break; 698 case MCE_RSP_EQIRTXPORTS: 699 dev_dbg(dev, "%s transmit blaster mask of 0x%02x", 700 inout, data[0]); 701 break; 702 case MCE_RSP_EQIRTIMEOUT: 703 /* value is in units of 50us, so x*50/1000 ms */ 704 period = ((data[0] << 8) | data[1]) * 705 MCE_TIME_UNIT / 1000; 706 dev_dbg(dev, "%s receive timeout of %d ms", 707 inout, period); 708 break; 709 case MCE_CMD_GETIRTIMEOUT: 710 dev_dbg(dev, "Get receive timeout"); 711 break; 712 case MCE_CMD_GETIRTXPORTS: 713 dev_dbg(dev, "Get transmit blaster mask"); 714 break; 715 case MCE_RSP_EQIRRXPORTEN: 716 dev_dbg(dev, "%s %s-range receive sensor in use", 717 inout, data[0] == 0x02 ? "short" : "long"); 718 break; 719 case MCE_CMD_GETIRRXPORTEN: 720 /* aka MCE_RSP_EQIRRXCFCNT */ 721 if (out) 722 dev_dbg(dev, "Get receive sensor"); 723 else 724 dev_dbg(dev, "RX carrier cycle count: %d", 725 ((data[0] << 8) | data[1])); 726 break; 727 case MCE_RSP_EQIRNUMPORTS: 728 if (out) 729 break; 730 dev_dbg(dev, "Num TX ports: %x, num RX ports: %x", 731 data[0], data[1]); 732 break; 733 case MCE_RSP_CMD_ILLEGAL: 734 dev_dbg(dev, "Illegal PORT_IR command"); 735 break; 736 default: 737 dev_dbg(dev, "Unknown command 0x%02x 0x%02x", 738 cmd, subcmd); 739 break; 740 } 741 break; 742 default: 743 break; 744 } 745 746 if (cmd == MCE_IRDATA_TRAILER) 747 dev_dbg(dev, "End of raw IR data"); 748 else if ((cmd != MCE_CMD_PORT_IR) && 749 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA)) 750 dev_dbg(dev, "Raw IR data, %d pulse/space samples", ir->rem); 751 #endif 752 } 753 754 /* 755 * Schedule work that can't be done in interrupt handlers 756 * (mceusb_dev_recv() and mce_async_callback()) nor tasklets. 757 * Invokes mceusb_deferred_kevent() for recovering from 758 * error events specified by the kevent bit field. 759 */ 760 static void mceusb_defer_kevent(struct mceusb_dev *ir, int kevent) 761 { 762 set_bit(kevent, &ir->kevent_flags); 763 764 if (test_bit(EVENT_RST_PEND, &ir->kevent_flags)) { 765 dev_dbg(ir->dev, "kevent %d dropped pending USB Reset Device", 766 kevent); 767 return; 768 } 769 770 if (!schedule_work(&ir->kevent)) 771 dev_dbg(ir->dev, "kevent %d already scheduled", kevent); 772 else 773 dev_dbg(ir->dev, "kevent %d scheduled", kevent); 774 } 775 776 static void mce_async_callback(struct urb *urb) 777 { 778 struct mceusb_dev *ir; 779 int len; 780 781 if (!urb) 782 return; 783 784 ir = urb->context; 785 786 switch (urb->status) { 787 /* success */ 788 case 0: 789 len = urb->actual_length; 790 791 mceusb_dev_printdata(ir, urb->transfer_buffer, len, 792 0, len, true); 793 break; 794 795 case -ECONNRESET: 796 case -ENOENT: 797 case -EILSEQ: 798 case -ESHUTDOWN: 799 break; 800 801 case -EPIPE: 802 dev_err(ir->dev, "Error: request urb status = %d (TX HALT)", 803 urb->status); 804 mceusb_defer_kevent(ir, EVENT_TX_HALT); 805 break; 806 807 default: 808 dev_err(ir->dev, "Error: request urb status = %d", urb->status); 809 break; 810 } 811 812 /* the transfer buffer and urb were allocated in mce_request_packet */ 813 kfree(urb->transfer_buffer); 814 usb_free_urb(urb); 815 } 816 817 /* request outgoing (send) usb packet - used to initialize remote */ 818 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data, 819 int size) 820 { 821 int res; 822 struct urb *async_urb; 823 struct device *dev = ir->dev; 824 unsigned char *async_buf; 825 826 async_urb = usb_alloc_urb(0, GFP_KERNEL); 827 if (unlikely(!async_urb)) { 828 dev_err(dev, "Error, couldn't allocate urb!"); 829 return; 830 } 831 832 async_buf = kmalloc(size, GFP_KERNEL); 833 if (!async_buf) { 834 usb_free_urb(async_urb); 835 return; 836 } 837 838 /* outbound data */ 839 if (usb_endpoint_xfer_int(ir->usb_ep_out)) 840 usb_fill_int_urb(async_urb, ir->usbdev, ir->pipe_out, 841 async_buf, size, mce_async_callback, ir, 842 ir->usb_ep_out->bInterval); 843 else 844 usb_fill_bulk_urb(async_urb, ir->usbdev, ir->pipe_out, 845 async_buf, size, mce_async_callback, ir); 846 847 memcpy(async_buf, data, size); 848 849 dev_dbg(dev, "send request called (size=%#x)", size); 850 851 res = usb_submit_urb(async_urb, GFP_ATOMIC); 852 if (res) { 853 dev_err(dev, "send request FAILED! (res=%d)", res); 854 kfree(async_buf); 855 usb_free_urb(async_urb); 856 return; 857 } 858 dev_dbg(dev, "send request complete (res=%d)", res); 859 } 860 861 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) 862 { 863 int rsize = sizeof(DEVICE_RESUME); 864 865 if (ir->need_reset) { 866 ir->need_reset = false; 867 mce_request_packet(ir, DEVICE_RESUME, rsize); 868 msleep(10); 869 } 870 871 mce_request_packet(ir, data, size); 872 msleep(10); 873 } 874 875 /* Send data out the IR blaster port(s) */ 876 static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count) 877 { 878 struct mceusb_dev *ir = dev->priv; 879 int i, length, ret = 0; 880 int cmdcount = 0; 881 unsigned char cmdbuf[MCE_CMDBUF_SIZE]; 882 883 /* MCE tx init header */ 884 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR; 885 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS; 886 cmdbuf[cmdcount++] = ir->tx_mask; 887 888 /* Send the set TX ports command */ 889 mce_async_out(ir, cmdbuf, cmdcount); 890 cmdcount = 0; 891 892 /* Generate mce packet data */ 893 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { 894 txbuf[i] = txbuf[i] / MCE_TIME_UNIT; 895 896 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ 897 898 /* Insert mce packet header every 4th entry */ 899 if ((cmdcount < MCE_CMDBUF_SIZE) && 900 (cmdcount % MCE_CODE_LENGTH) == 0) 901 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; 902 903 /* Insert mce packet data */ 904 if (cmdcount < MCE_CMDBUF_SIZE) 905 cmdbuf[cmdcount++] = 906 (txbuf[i] < MCE_PULSE_BIT ? 907 txbuf[i] : MCE_MAX_PULSE_LENGTH) | 908 (i & 1 ? 0x00 : MCE_PULSE_BIT); 909 else { 910 ret = -EINVAL; 911 goto out; 912 } 913 914 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && 915 (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); 916 } 917 918 /* Check if we have room for the empty packet at the end */ 919 if (cmdcount >= MCE_CMDBUF_SIZE) { 920 ret = -EINVAL; 921 goto out; 922 } 923 924 /* Fix packet length in last header */ 925 length = cmdcount % MCE_CODE_LENGTH; 926 cmdbuf[cmdcount - length] -= MCE_CODE_LENGTH - length; 927 928 /* All mce commands end with an empty packet (0x80) */ 929 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; 930 931 /* Transmit the command to the mce device */ 932 mce_async_out(ir, cmdbuf, cmdcount); 933 934 out: 935 return ret ? ret : count; 936 } 937 938 /* Sets active IR outputs -- mce devices typically have two */ 939 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) 940 { 941 struct mceusb_dev *ir = dev->priv; 942 943 /* return number of transmitters */ 944 int emitters = ir->num_txports ? ir->num_txports : 2; 945 946 if (mask >= (1 << emitters)) 947 return emitters; 948 949 if (ir->flags.tx_mask_normal) 950 ir->tx_mask = mask; 951 else 952 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? 953 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; 954 955 return 0; 956 } 957 958 /* Sets the send carrier frequency and mode */ 959 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier) 960 { 961 struct mceusb_dev *ir = dev->priv; 962 int clk = 10000000; 963 int prescaler = 0, divisor = 0; 964 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR, 965 MCE_CMD_SETIRCFS, 0x00, 0x00 }; 966 967 /* Carrier has changed */ 968 if (ir->carrier != carrier) { 969 970 if (carrier == 0) { 971 ir->carrier = carrier; 972 cmdbuf[2] = MCE_CMD_SIG_END; 973 cmdbuf[3] = MCE_IRDATA_TRAILER; 974 dev_dbg(ir->dev, "disabling carrier modulation"); 975 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 976 return 0; 977 } 978 979 for (prescaler = 0; prescaler < 4; ++prescaler) { 980 divisor = (clk >> (2 * prescaler)) / carrier; 981 if (divisor <= 0xff) { 982 ir->carrier = carrier; 983 cmdbuf[2] = prescaler; 984 cmdbuf[3] = divisor; 985 dev_dbg(ir->dev, "requesting %u HZ carrier", 986 carrier); 987 988 /* Transmit new carrier to mce device */ 989 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 990 return 0; 991 } 992 } 993 994 return -EINVAL; 995 996 } 997 998 return 0; 999 } 1000 1001 static int mceusb_set_timeout(struct rc_dev *dev, unsigned int timeout) 1002 { 1003 u8 cmdbuf[4] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRTIMEOUT, 0, 0 }; 1004 struct mceusb_dev *ir = dev->priv; 1005 unsigned int units; 1006 1007 units = DIV_ROUND_CLOSEST(timeout, US_TO_NS(MCE_TIME_UNIT)); 1008 1009 cmdbuf[2] = units >> 8; 1010 cmdbuf[3] = units; 1011 1012 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1013 1014 /* get receiver timeout value */ 1015 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1016 1017 return 0; 1018 } 1019 1020 /* 1021 * Select or deselect the 2nd receiver port. 1022 * Second receiver is learning mode, wide-band, short-range receiver. 1023 * Only one receiver (long or short range) may be active at a time. 1024 */ 1025 static int mceusb_set_rx_wideband(struct rc_dev *dev, int enable) 1026 { 1027 struct mceusb_dev *ir = dev->priv; 1028 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR, 1029 MCE_CMD_SETIRRXPORTEN, 0x00 }; 1030 1031 dev_dbg(ir->dev, "select %s-range receive sensor", 1032 enable ? "short" : "long"); 1033 if (enable) { 1034 ir->wideband_rx_enabled = true; 1035 cmdbuf[2] = 2; /* port 2 is short range receiver */ 1036 } else { 1037 ir->wideband_rx_enabled = false; 1038 cmdbuf[2] = 1; /* port 1 is long range receiver */ 1039 } 1040 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1041 /* response from device sets ir->learning_active */ 1042 1043 return 0; 1044 } 1045 1046 /* 1047 * Enable/disable receiver carrier frequency pass through reporting. 1048 * Only the short-range receiver has carrier frequency measuring capability. 1049 * Implicitly select this receiver when enabling carrier frequency reporting. 1050 */ 1051 static int mceusb_set_rx_carrier_report(struct rc_dev *dev, int enable) 1052 { 1053 struct mceusb_dev *ir = dev->priv; 1054 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR, 1055 MCE_CMD_SETIRRXPORTEN, 0x00 }; 1056 1057 dev_dbg(ir->dev, "%s short-range receiver carrier reporting", 1058 enable ? "enable" : "disable"); 1059 if (enable) { 1060 ir->carrier_report_enabled = true; 1061 if (!ir->learning_active) { 1062 cmdbuf[2] = 2; /* port 2 is short range receiver */ 1063 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1064 } 1065 } else { 1066 ir->carrier_report_enabled = false; 1067 /* 1068 * Revert to normal (long-range) receiver only if the 1069 * wideband (short-range) receiver wasn't explicitly 1070 * enabled. 1071 */ 1072 if (ir->learning_active && !ir->wideband_rx_enabled) { 1073 cmdbuf[2] = 1; /* port 1 is long range receiver */ 1074 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1075 } 1076 } 1077 1078 return 0; 1079 } 1080 1081 /* 1082 * We don't do anything but print debug spew for many of the command bits 1083 * we receive from the hardware, but some of them are useful information 1084 * we want to store so that we can use them. 1085 */ 1086 static void mceusb_handle_command(struct mceusb_dev *ir, int index) 1087 { 1088 struct ir_raw_event rawir = {}; 1089 u8 hi = ir->buf_in[index + 1] & 0xff; 1090 u8 lo = ir->buf_in[index + 2] & 0xff; 1091 u32 carrier_cycles; 1092 u32 cycles_fix; 1093 1094 switch (ir->buf_in[index]) { 1095 /* the one and only 5-byte return value command */ 1096 case MCE_RSP_GETPORTSTATUS: 1097 if ((ir->buf_in[index + 4] & 0xff) == 0x00) 1098 ir->txports_cabled |= 1 << hi; 1099 break; 1100 1101 /* 2-byte return value commands */ 1102 case MCE_RSP_EQIRTIMEOUT: 1103 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT); 1104 break; 1105 case MCE_RSP_EQIRNUMPORTS: 1106 ir->num_txports = hi; 1107 ir->num_rxports = lo; 1108 break; 1109 case MCE_RSP_EQIRRXCFCNT: 1110 /* 1111 * The carrier cycle counter can overflow and wrap around 1112 * without notice from the device. So frequency measurement 1113 * will be inaccurate with long duration IR. 1114 * 1115 * The long-range (non learning) receiver always reports 1116 * zero count so we always ignore its report. 1117 */ 1118 if (ir->carrier_report_enabled && ir->learning_active && 1119 ir->pulse_tunit > 0) { 1120 carrier_cycles = (hi << 8 | lo); 1121 /* 1122 * Adjust carrier cycle count by adding 1123 * 1 missed count per pulse "on" 1124 */ 1125 cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0; 1126 rawir.carrier_report = 1; 1127 rawir.carrier = (1000000u / MCE_TIME_UNIT) * 1128 (carrier_cycles + cycles_fix) / 1129 ir->pulse_tunit; 1130 dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = %u)", 1131 rawir.carrier, ir->pulse_count, carrier_cycles, 1132 ir->pulse_tunit, ir->flags.rx2); 1133 ir_raw_event_store(ir->rc, &rawir); 1134 } 1135 break; 1136 1137 /* 1-byte return value commands */ 1138 case MCE_RSP_EQEMVER: 1139 ir->emver = hi; 1140 break; 1141 case MCE_RSP_EQIRTXPORTS: 1142 ir->tx_mask = hi; 1143 break; 1144 case MCE_RSP_EQIRRXPORTEN: 1145 ir->learning_active = ((hi & 0x02) == 0x02); 1146 if (ir->rxports_active != hi) { 1147 dev_info(ir->dev, "%s-range (0x%x) receiver active", 1148 ir->learning_active ? "short" : "long", hi); 1149 ir->rxports_active = hi; 1150 } 1151 break; 1152 case MCE_RSP_CMD_ILLEGAL: 1153 ir->need_reset = true; 1154 break; 1155 default: 1156 break; 1157 } 1158 } 1159 1160 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) 1161 { 1162 struct ir_raw_event rawir = {}; 1163 bool event = false; 1164 int i = 0; 1165 1166 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 1167 if (ir->flags.microsoft_gen1) 1168 i = 2; 1169 1170 /* if there's no data, just return now */ 1171 if (buf_len <= i) 1172 return; 1173 1174 for (; i < buf_len; i++) { 1175 switch (ir->parser_state) { 1176 case SUBCMD: 1177 ir->rem = mceusb_cmd_datasize(ir->cmd, ir->buf_in[i]); 1178 mceusb_dev_printdata(ir, ir->buf_in, buf_len, i - 1, 1179 ir->rem + 2, false); 1180 mceusb_handle_command(ir, i); 1181 ir->parser_state = CMD_DATA; 1182 break; 1183 case PARSE_IRDATA: 1184 ir->rem--; 1185 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); 1186 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK); 1187 if (unlikely(!rawir.duration)) { 1188 dev_dbg(ir->dev, "nonsensical irdata %02x with duration 0", 1189 ir->buf_in[i]); 1190 break; 1191 } 1192 if (rawir.pulse) { 1193 ir->pulse_tunit += rawir.duration; 1194 ir->pulse_count++; 1195 } 1196 rawir.duration *= US_TO_NS(MCE_TIME_UNIT); 1197 1198 dev_dbg(ir->dev, "Storing %s %u ns (%02x)", 1199 rawir.pulse ? "pulse" : "space", 1200 rawir.duration, ir->buf_in[i]); 1201 1202 if (ir_raw_event_store_with_filter(ir->rc, &rawir)) 1203 event = true; 1204 break; 1205 case CMD_DATA: 1206 ir->rem--; 1207 break; 1208 case CMD_HEADER: 1209 /* decode mce packets of the form (84),AA,BB,CC,DD */ 1210 /* IR data packets can span USB messages - rem */ 1211 ir->cmd = ir->buf_in[i]; 1212 if ((ir->cmd == MCE_CMD_PORT_IR) || 1213 ((ir->cmd & MCE_PORT_MASK) != 1214 MCE_COMMAND_IRDATA)) { 1215 ir->parser_state = SUBCMD; 1216 continue; 1217 } 1218 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); 1219 mceusb_dev_printdata(ir, ir->buf_in, buf_len, 1220 i, ir->rem + 1, false); 1221 if (ir->rem) { 1222 ir->parser_state = PARSE_IRDATA; 1223 } else { 1224 struct ir_raw_event ev = { 1225 .timeout = 1, 1226 .duration = ir->rc->timeout 1227 }; 1228 1229 if (ir_raw_event_store_with_filter(ir->rc, 1230 &ev)) 1231 event = true; 1232 ir->pulse_tunit = 0; 1233 ir->pulse_count = 0; 1234 } 1235 break; 1236 } 1237 1238 if (ir->parser_state != CMD_HEADER && !ir->rem) 1239 ir->parser_state = CMD_HEADER; 1240 } 1241 if (event) { 1242 dev_dbg(ir->dev, "processed IR data"); 1243 ir_raw_event_handle(ir->rc); 1244 } 1245 } 1246 1247 static void mceusb_dev_recv(struct urb *urb) 1248 { 1249 struct mceusb_dev *ir; 1250 1251 if (!urb) 1252 return; 1253 1254 ir = urb->context; 1255 if (!ir) { 1256 usb_unlink_urb(urb); 1257 return; 1258 } 1259 1260 switch (urb->status) { 1261 /* success */ 1262 case 0: 1263 mceusb_process_ir_data(ir, urb->actual_length); 1264 break; 1265 1266 case -ECONNRESET: 1267 case -ENOENT: 1268 case -EILSEQ: 1269 case -ESHUTDOWN: 1270 usb_unlink_urb(urb); 1271 return; 1272 1273 case -EPIPE: 1274 dev_err(ir->dev, "Error: urb status = %d (RX HALT)", 1275 urb->status); 1276 mceusb_defer_kevent(ir, EVENT_RX_HALT); 1277 return; 1278 1279 default: 1280 dev_err(ir->dev, "Error: urb status = %d", urb->status); 1281 break; 1282 } 1283 1284 usb_submit_urb(urb, GFP_ATOMIC); 1285 } 1286 1287 static void mceusb_get_emulator_version(struct mceusb_dev *ir) 1288 { 1289 /* If we get no reply or an illegal command reply, its ver 1, says MS */ 1290 ir->emver = 1; 1291 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER)); 1292 } 1293 1294 static void mceusb_gen1_init(struct mceusb_dev *ir) 1295 { 1296 int ret; 1297 struct device *dev = ir->dev; 1298 char *data; 1299 1300 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); 1301 if (!data) { 1302 dev_err(dev, "%s: memory allocation failed!", __func__); 1303 return; 1304 } 1305 1306 /* 1307 * This is a strange one. Windows issues a set address to the device 1308 * on the receive control pipe and expect a certain value pair back 1309 */ 1310 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), 1311 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, 1312 data, USB_CTRL_MSG_SZ, HZ * 3); 1313 dev_dbg(dev, "set address - ret = %d", ret); 1314 dev_dbg(dev, "set address - data[0] = %d, data[1] = %d", 1315 data[0], data[1]); 1316 1317 /* set feature: bit rate 38400 bps */ 1318 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1319 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, 1320 0xc04e, 0x0000, NULL, 0, HZ * 3); 1321 1322 dev_dbg(dev, "set feature - ret = %d", ret); 1323 1324 /* bRequest 4: set char length to 8 bits */ 1325 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1326 4, USB_TYPE_VENDOR, 1327 0x0808, 0x0000, NULL, 0, HZ * 3); 1328 dev_dbg(dev, "set char length - retB = %d", ret); 1329 1330 /* bRequest 2: set handshaking to use DTR/DSR */ 1331 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1332 2, USB_TYPE_VENDOR, 1333 0x0000, 0x0100, NULL, 0, HZ * 3); 1334 dev_dbg(dev, "set handshake - retC = %d", ret); 1335 1336 /* device resume */ 1337 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1338 1339 /* get hw/sw revision? */ 1340 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1341 1342 kfree(data); 1343 } 1344 1345 static void mceusb_gen2_init(struct mceusb_dev *ir) 1346 { 1347 /* device resume */ 1348 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1349 1350 /* get wake version (protocol, key, address) */ 1351 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION)); 1352 1353 /* unknown what this one actually returns... */ 1354 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); 1355 } 1356 1357 static void mceusb_get_parameters(struct mceusb_dev *ir) 1358 { 1359 int i; 1360 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS, 1361 MCE_CMD_GETPORTSTATUS, 0x00 }; 1362 1363 /* defaults, if the hardware doesn't support querying */ 1364 ir->num_txports = 2; 1365 ir->num_rxports = 2; 1366 1367 /* get number of tx and rx ports */ 1368 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS)); 1369 1370 /* get the carrier and frequency */ 1371 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); 1372 1373 if (ir->num_txports && !ir->flags.no_tx) 1374 /* get the transmitter bitmask */ 1375 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); 1376 1377 /* get receiver timeout value */ 1378 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1379 1380 /* get receiver sensor setting */ 1381 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); 1382 1383 for (i = 0; i < ir->num_txports; i++) { 1384 cmdbuf[2] = i; 1385 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1386 } 1387 } 1388 1389 static void mceusb_flash_led(struct mceusb_dev *ir) 1390 { 1391 if (ir->emver < 2) 1392 return; 1393 1394 mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED)); 1395 } 1396 1397 /* 1398 * Workqueue function 1399 * for resetting or recovering device after occurrence of error events 1400 * specified in ir->kevent bit field. 1401 * Function runs (via schedule_work()) in non-interrupt context, for 1402 * calls here (such as usb_clear_halt()) requiring non-interrupt context. 1403 */ 1404 static void mceusb_deferred_kevent(struct work_struct *work) 1405 { 1406 struct mceusb_dev *ir = 1407 container_of(work, struct mceusb_dev, kevent); 1408 int status; 1409 1410 dev_err(ir->dev, "kevent handler called (flags 0x%lx)", 1411 ir->kevent_flags); 1412 1413 if (test_bit(EVENT_RST_PEND, &ir->kevent_flags)) { 1414 dev_err(ir->dev, "kevent handler canceled pending USB Reset Device"); 1415 return; 1416 } 1417 1418 if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) { 1419 usb_unlink_urb(ir->urb_in); 1420 status = usb_clear_halt(ir->usbdev, ir->pipe_in); 1421 dev_err(ir->dev, "rx clear halt status = %d", status); 1422 if (status < 0) { 1423 /* 1424 * Unable to clear RX halt/stall. 1425 * Will need to call usb_reset_device(). 1426 */ 1427 dev_err(ir->dev, 1428 "stuck RX HALT state requires USB Reset Device to clear"); 1429 usb_queue_reset_device(ir->usbintf); 1430 set_bit(EVENT_RST_PEND, &ir->kevent_flags); 1431 clear_bit(EVENT_RX_HALT, &ir->kevent_flags); 1432 1433 /* Cancel all other error events and handlers */ 1434 clear_bit(EVENT_TX_HALT, &ir->kevent_flags); 1435 return; 1436 } 1437 clear_bit(EVENT_RX_HALT, &ir->kevent_flags); 1438 status = usb_submit_urb(ir->urb_in, GFP_KERNEL); 1439 if (status < 0) { 1440 dev_err(ir->dev, "rx unhalt submit urb error = %d", 1441 status); 1442 } 1443 } 1444 1445 if (test_bit(EVENT_TX_HALT, &ir->kevent_flags)) { 1446 status = usb_clear_halt(ir->usbdev, ir->pipe_out); 1447 dev_err(ir->dev, "tx clear halt status = %d", status); 1448 if (status < 0) { 1449 /* 1450 * Unable to clear TX halt/stall. 1451 * Will need to call usb_reset_device(). 1452 */ 1453 dev_err(ir->dev, 1454 "stuck TX HALT state requires USB Reset Device to clear"); 1455 usb_queue_reset_device(ir->usbintf); 1456 set_bit(EVENT_RST_PEND, &ir->kevent_flags); 1457 clear_bit(EVENT_TX_HALT, &ir->kevent_flags); 1458 1459 /* Cancel all other error events and handlers */ 1460 clear_bit(EVENT_RX_HALT, &ir->kevent_flags); 1461 return; 1462 } 1463 clear_bit(EVENT_TX_HALT, &ir->kevent_flags); 1464 } 1465 } 1466 1467 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) 1468 { 1469 struct usb_device *udev = ir->usbdev; 1470 struct device *dev = ir->dev; 1471 struct rc_dev *rc; 1472 int ret; 1473 1474 rc = rc_allocate_device(RC_DRIVER_IR_RAW); 1475 if (!rc) { 1476 dev_err(dev, "remote dev allocation failed"); 1477 goto out; 1478 } 1479 1480 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", 1481 mceusb_model[ir->model].name ? 1482 mceusb_model[ir->model].name : 1483 "Media Center Ed. eHome Infrared Remote Transceiver", 1484 le16_to_cpu(ir->usbdev->descriptor.idVendor), 1485 le16_to_cpu(ir->usbdev->descriptor.idProduct)); 1486 1487 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); 1488 1489 rc->device_name = ir->name; 1490 rc->input_phys = ir->phys; 1491 usb_to_input_id(ir->usbdev, &rc->input_id); 1492 rc->dev.parent = dev; 1493 rc->priv = ir; 1494 rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER; 1495 rc->min_timeout = US_TO_NS(MCE_TIME_UNIT); 1496 rc->timeout = MS_TO_NS(100); 1497 if (!mceusb_model[ir->model].broken_irtimeout) { 1498 rc->s_timeout = mceusb_set_timeout; 1499 rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT; 1500 } else { 1501 /* 1502 * If we can't set the timeout using CMD_SETIRTIMEOUT, we can 1503 * rely on software timeouts for timeouts < 100ms. 1504 */ 1505 rc->max_timeout = rc->timeout; 1506 } 1507 if (!ir->flags.no_tx) { 1508 rc->s_tx_mask = mceusb_set_tx_mask; 1509 rc->s_tx_carrier = mceusb_set_tx_carrier; 1510 rc->tx_ir = mceusb_tx_ir; 1511 } 1512 if (ir->flags.rx2 > 0) { 1513 rc->s_learning_mode = mceusb_set_rx_wideband; 1514 rc->s_carrier_report = mceusb_set_rx_carrier_report; 1515 } 1516 rc->driver_name = DRIVER_NAME; 1517 1518 switch (le16_to_cpu(udev->descriptor.idVendor)) { 1519 case VENDOR_HAUPPAUGE: 1520 rc->map_name = RC_MAP_HAUPPAUGE; 1521 break; 1522 case VENDOR_PCTV: 1523 rc->map_name = RC_MAP_PINNACLE_PCTV_HD; 1524 break; 1525 default: 1526 rc->map_name = RC_MAP_RC6_MCE; 1527 } 1528 if (mceusb_model[ir->model].rc_map) 1529 rc->map_name = mceusb_model[ir->model].rc_map; 1530 1531 ret = rc_register_device(rc); 1532 if (ret < 0) { 1533 dev_err(dev, "remote dev registration failed"); 1534 goto out; 1535 } 1536 1537 return rc; 1538 1539 out: 1540 rc_free_device(rc); 1541 return NULL; 1542 } 1543 1544 static int mceusb_dev_probe(struct usb_interface *intf, 1545 const struct usb_device_id *id) 1546 { 1547 struct usb_device *dev = interface_to_usbdev(intf); 1548 struct usb_host_interface *idesc; 1549 struct usb_endpoint_descriptor *ep = NULL; 1550 struct usb_endpoint_descriptor *ep_in = NULL; 1551 struct usb_endpoint_descriptor *ep_out = NULL; 1552 struct mceusb_dev *ir = NULL; 1553 int pipe, maxp, i, res; 1554 char buf[63], name[128] = ""; 1555 enum mceusb_model_type model = id->driver_info; 1556 bool is_gen3; 1557 bool is_microsoft_gen1; 1558 bool tx_mask_normal; 1559 int ir_intfnum; 1560 1561 dev_dbg(&intf->dev, "%s called", __func__); 1562 1563 idesc = intf->cur_altsetting; 1564 1565 is_gen3 = mceusb_model[model].mce_gen3; 1566 is_microsoft_gen1 = mceusb_model[model].mce_gen1; 1567 tx_mask_normal = mceusb_model[model].tx_mask_normal; 1568 ir_intfnum = mceusb_model[model].ir_intfnum; 1569 1570 /* There are multi-function devices with non-IR interfaces */ 1571 if (idesc->desc.bInterfaceNumber != ir_intfnum) 1572 return -ENODEV; 1573 1574 /* step through the endpoints to find first bulk in and out endpoint */ 1575 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { 1576 ep = &idesc->endpoint[i].desc; 1577 1578 if (ep_in == NULL) { 1579 if (usb_endpoint_is_bulk_in(ep)) { 1580 ep_in = ep; 1581 dev_dbg(&intf->dev, "acceptable bulk inbound endpoint found\n"); 1582 } else if (usb_endpoint_is_int_in(ep)) { 1583 ep_in = ep; 1584 ep_in->bInterval = 1; 1585 dev_dbg(&intf->dev, "acceptable interrupt inbound endpoint found\n"); 1586 } 1587 } 1588 1589 if (ep_out == NULL) { 1590 if (usb_endpoint_is_bulk_out(ep)) { 1591 ep_out = ep; 1592 dev_dbg(&intf->dev, "acceptable bulk outbound endpoint found\n"); 1593 } else if (usb_endpoint_is_int_out(ep)) { 1594 ep_out = ep; 1595 ep_out->bInterval = 1; 1596 dev_dbg(&intf->dev, "acceptable interrupt outbound endpoint found\n"); 1597 } 1598 } 1599 } 1600 if (!ep_in || !ep_out) { 1601 dev_dbg(&intf->dev, "required endpoints not found\n"); 1602 return -ENODEV; 1603 } 1604 1605 if (usb_endpoint_xfer_int(ep_in)) 1606 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); 1607 else 1608 pipe = usb_rcvbulkpipe(dev, ep_in->bEndpointAddress); 1609 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 1610 1611 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); 1612 if (!ir) 1613 goto mem_alloc_fail; 1614 1615 ir->pipe_in = pipe; 1616 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); 1617 if (!ir->buf_in) 1618 goto buf_in_alloc_fail; 1619 1620 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); 1621 if (!ir->urb_in) 1622 goto urb_in_alloc_fail; 1623 1624 ir->usbintf = intf; 1625 ir->usbdev = usb_get_dev(dev); 1626 ir->dev = &intf->dev; 1627 ir->len_in = maxp; 1628 ir->flags.microsoft_gen1 = is_microsoft_gen1; 1629 ir->flags.tx_mask_normal = tx_mask_normal; 1630 ir->flags.no_tx = mceusb_model[model].no_tx; 1631 ir->flags.rx2 = mceusb_model[model].rx2; 1632 ir->model = model; 1633 1634 /* Saving usb interface data for use by the transmitter routine */ 1635 ir->usb_ep_out = ep_out; 1636 if (usb_endpoint_xfer_int(ep_out)) 1637 ir->pipe_out = usb_sndintpipe(ir->usbdev, 1638 ep_out->bEndpointAddress); 1639 else 1640 ir->pipe_out = usb_sndbulkpipe(ir->usbdev, 1641 ep_out->bEndpointAddress); 1642 1643 if (dev->descriptor.iManufacturer 1644 && usb_string(dev, dev->descriptor.iManufacturer, 1645 buf, sizeof(buf)) > 0) 1646 strscpy(name, buf, sizeof(name)); 1647 if (dev->descriptor.iProduct 1648 && usb_string(dev, dev->descriptor.iProduct, 1649 buf, sizeof(buf)) > 0) 1650 snprintf(name + strlen(name), sizeof(name) - strlen(name), 1651 " %s", buf); 1652 1653 /* 1654 * Initialize async USB error handler before registering 1655 * or activating any mceusb RX and TX functions 1656 */ 1657 INIT_WORK(&ir->kevent, mceusb_deferred_kevent); 1658 1659 ir->rc = mceusb_init_rc_dev(ir); 1660 if (!ir->rc) 1661 goto rc_dev_fail; 1662 1663 /* wire up inbound data handler */ 1664 if (usb_endpoint_xfer_int(ep_in)) 1665 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, 1666 mceusb_dev_recv, ir, ep_in->bInterval); 1667 else 1668 usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, 1669 mceusb_dev_recv, ir); 1670 1671 ir->urb_in->transfer_dma = ir->dma_in; 1672 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1673 1674 /* flush buffers on the device */ 1675 dev_dbg(&intf->dev, "Flushing receive buffers"); 1676 res = usb_submit_urb(ir->urb_in, GFP_KERNEL); 1677 if (res) 1678 dev_err(&intf->dev, "failed to flush buffers: %d", res); 1679 1680 /* figure out which firmware/emulator version this hardware has */ 1681 mceusb_get_emulator_version(ir); 1682 1683 /* initialize device */ 1684 if (ir->flags.microsoft_gen1) 1685 mceusb_gen1_init(ir); 1686 else if (!is_gen3) 1687 mceusb_gen2_init(ir); 1688 1689 mceusb_get_parameters(ir); 1690 1691 mceusb_flash_led(ir); 1692 1693 if (!ir->flags.no_tx) 1694 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); 1695 1696 usb_set_intfdata(intf, ir); 1697 1698 /* enable wake via this device */ 1699 device_set_wakeup_capable(ir->dev, true); 1700 device_set_wakeup_enable(ir->dev, true); 1701 1702 dev_info(&intf->dev, "Registered %s with mce emulator interface version %x", 1703 name, ir->emver); 1704 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and %x rx sensors (0x%x active)", 1705 ir->num_txports, ir->txports_cabled, 1706 ir->num_rxports, ir->rxports_active); 1707 1708 return 0; 1709 1710 /* Error-handling path */ 1711 rc_dev_fail: 1712 cancel_work_sync(&ir->kevent); 1713 usb_put_dev(ir->usbdev); 1714 usb_kill_urb(ir->urb_in); 1715 usb_free_urb(ir->urb_in); 1716 urb_in_alloc_fail: 1717 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); 1718 buf_in_alloc_fail: 1719 kfree(ir); 1720 mem_alloc_fail: 1721 dev_err(&intf->dev, "%s: device setup failed!", __func__); 1722 1723 return -ENOMEM; 1724 } 1725 1726 1727 static void mceusb_dev_disconnect(struct usb_interface *intf) 1728 { 1729 struct usb_device *dev = interface_to_usbdev(intf); 1730 struct mceusb_dev *ir = usb_get_intfdata(intf); 1731 1732 dev_dbg(&intf->dev, "%s called", __func__); 1733 1734 usb_set_intfdata(intf, NULL); 1735 1736 if (!ir) 1737 return; 1738 1739 ir->usbdev = NULL; 1740 cancel_work_sync(&ir->kevent); 1741 rc_unregister_device(ir->rc); 1742 usb_kill_urb(ir->urb_in); 1743 usb_free_urb(ir->urb_in); 1744 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); 1745 usb_put_dev(dev); 1746 1747 kfree(ir); 1748 } 1749 1750 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) 1751 { 1752 struct mceusb_dev *ir = usb_get_intfdata(intf); 1753 dev_info(ir->dev, "suspend"); 1754 usb_kill_urb(ir->urb_in); 1755 return 0; 1756 } 1757 1758 static int mceusb_dev_resume(struct usb_interface *intf) 1759 { 1760 struct mceusb_dev *ir = usb_get_intfdata(intf); 1761 dev_info(ir->dev, "resume"); 1762 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) 1763 return -EIO; 1764 return 0; 1765 } 1766 1767 static struct usb_driver mceusb_dev_driver = { 1768 .name = DRIVER_NAME, 1769 .probe = mceusb_dev_probe, 1770 .disconnect = mceusb_dev_disconnect, 1771 .suspend = mceusb_dev_suspend, 1772 .resume = mceusb_dev_resume, 1773 .reset_resume = mceusb_dev_resume, 1774 .id_table = mceusb_dev_table 1775 }; 1776 1777 module_usb_driver(mceusb_dev_driver); 1778 1779 MODULE_DESCRIPTION(DRIVER_DESC); 1780 MODULE_AUTHOR(DRIVER_AUTHOR); 1781 MODULE_LICENSE("GPL"); 1782 MODULE_DEVICE_TABLE(usb, mceusb_dev_table); 1783