mceusb.c revision a6fbd3b77ad0ad7b3020b4f50659e740ff68c719
1/* 2 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers 3 * 4 * Copyright (c) 2010 by Jarod Wilson <jarod@redhat.com> 5 * 6 * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan 7 * Conti, Martin Blatter and Daniel Melander, the latter of which was 8 * in turn also based on the lirc_atiusb driver by Paul Miller. The 9 * two mce drivers were merged into one by Jarod Wilson, with transmit 10 * support for the 1st-gen device added primarily by Patrick Calhoun, 11 * with a bit of tweaks by Jarod. Debugging improvements and proper 12 * support for what appears to be 3rd-gen hardware added by Jarod. 13 * Initial port from lirc driver to ir-core drivery by Jarod, based 14 * partially on a port to an earlier proposed IR infrastructure by 15 * Jon Smirl, which included enhancements and simplifications to the 16 * incoming IR buffer parsing routines. 17 * 18 * 19 * This program is free software; you can redistribute it and/or modify 20 * it under the terms of the GNU General Public License as published by 21 * the Free Software Foundation; either version 2 of the License, or 22 * (at your option) any later version. 23 * 24 * This program is distributed in the hope that it will be useful, 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27 * GNU General Public License for more details. 28 * 29 * You should have received a copy of the GNU General Public License 30 * along with this program; if not, write to the Free Software 31 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 32 * 33 */ 34 35#include <linux/device.h> 36#include <linux/module.h> 37#include <linux/slab.h> 38#include <linux/usb.h> 39#include <linux/usb/input.h> 40#include <media/rc-core.h> 41 42#define DRIVER_VERSION "1.91" 43#define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" 44#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ 45 "device driver" 46#define DRIVER_NAME "mceusb" 47 48#define USB_BUFLEN 32 /* USB reception buffer length */ 49#define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */ 50#define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */ 51 52/* MCE constants */ 53#define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */ 54#define MCE_TIME_UNIT 50 /* Approx 50us resolution */ 55#define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */ 56#define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */ 57#define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */ 58#define MCE_IRDATA_TRAILER 0x80 /* End of IR data */ 59#define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */ 60#define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */ 61#define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */ 62#define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */ 63#define MCE_PULSE_MASK 0x7f /* Pulse mask */ 64#define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */ 65 66/* 67 * The interface between the host and the IR hardware is command-response 68 * based. All commands and responses have a consistent format, where a lead 69 * byte always identifies the type of data following it. The lead byte has 70 * a port value in the 3 highest bits and a length value in the 5 lowest 71 * bits. 72 * 73 * The length field is overloaded, with a value of 11111 indicating that the 74 * following byte is a command or response code, and the length of the entire 75 * message is determined by the code. If the length field is not 11111, then 76 * it specifies the number of bytes of port data that follow. 77 */ 78#define MCE_CMD 0x1f 79#define MCE_PORT_IR 0x4 /* (0x4 << 5) | MCE_CMD = 0x9f */ 80#define MCE_PORT_SYS 0x7 /* (0x7 << 5) | MCE_CMD = 0xff */ 81#define MCE_PORT_SER 0x6 /* 0xc0 thru 0xdf flush & 0x1f bytes */ 82#define MCE_PORT_MASK 0xe0 /* Mask out command bits */ 83 84/* Command port headers */ 85#define MCE_CMD_PORT_IR 0x9f /* IR-related cmd/rsp */ 86#define MCE_CMD_PORT_SYS 0xff /* System (non-IR) device cmd/rsp */ 87 88/* Commands that set device state (2-4 bytes in length) */ 89#define MCE_CMD_RESET 0xfe /* Reset device, 2 bytes */ 90#define MCE_CMD_RESUME 0xaa /* Resume device after error, 2 bytes */ 91#define MCE_CMD_SETIRCFS 0x06 /* Set tx carrier, 4 bytes */ 92#define MCE_CMD_SETIRTIMEOUT 0x0c /* Set timeout, 4 bytes */ 93#define MCE_CMD_SETIRTXPORTS 0x08 /* Set tx ports, 3 bytes */ 94#define MCE_CMD_SETIRRXPORTEN 0x14 /* Set rx ports, 3 bytes */ 95#define MCE_CMD_FLASHLED 0x23 /* Flash receiver LED, 2 bytes */ 96 97/* Commands that query device state (all 2 bytes, unless noted) */ 98#define MCE_CMD_GETIRCFS 0x07 /* Get carrier */ 99#define MCE_CMD_GETIRTIMEOUT 0x0d /* Get timeout */ 100#define MCE_CMD_GETIRTXPORTS 0x13 /* Get tx ports */ 101#define MCE_CMD_GETIRRXPORTEN 0x15 /* Get rx ports */ 102#define MCE_CMD_GETPORTSTATUS 0x11 /* Get tx port status, 3 bytes */ 103#define MCE_CMD_GETIRNUMPORTS 0x16 /* Get number of ports */ 104#define MCE_CMD_GETWAKESOURCE 0x17 /* Get wake source */ 105#define MCE_CMD_GETEMVER 0x22 /* Get emulator interface version */ 106#define MCE_CMD_GETDEVDETAILS 0x21 /* Get device details (em ver2 only) */ 107#define MCE_CMD_GETWAKESUPPORT 0x20 /* Get wake details (em ver2 only) */ 108#define MCE_CMD_GETWAKEVERSION 0x18 /* Get wake pattern (em ver2 only) */ 109 110/* Misc commands */ 111#define MCE_CMD_NOP 0xff /* No operation */ 112 113/* Responses to commands (non-error cases) */ 114#define MCE_RSP_EQIRCFS 0x06 /* tx carrier, 4 bytes */ 115#define MCE_RSP_EQIRTIMEOUT 0x0c /* rx timeout, 4 bytes */ 116#define MCE_RSP_GETWAKESOURCE 0x17 /* wake source, 3 bytes */ 117#define MCE_RSP_EQIRTXPORTS 0x08 /* tx port mask, 3 bytes */ 118#define MCE_RSP_EQIRRXPORTEN 0x14 /* rx port mask, 3 bytes */ 119#define MCE_RSP_GETPORTSTATUS 0x11 /* tx port status, 7 bytes */ 120#define MCE_RSP_EQIRRXCFCNT 0x15 /* rx carrier count, 4 bytes */ 121#define MCE_RSP_EQIRNUMPORTS 0x16 /* number of ports, 4 bytes */ 122#define MCE_RSP_EQWAKESUPPORT 0x20 /* wake capabilities, 3 bytes */ 123#define MCE_RSP_EQWAKEVERSION 0x18 /* wake pattern details, 6 bytes */ 124#define MCE_RSP_EQDEVDETAILS 0x21 /* device capabilities, 3 bytes */ 125#define MCE_RSP_EQEMVER 0x22 /* emulator interface ver, 3 bytes */ 126#define MCE_RSP_FLASHLED 0x23 /* success flashing LED, 2 bytes */ 127 128/* Responses to error cases, must send MCE_CMD_RESUME to clear them */ 129#define MCE_RSP_CMD_ILLEGAL 0xfe /* illegal command for port, 2 bytes */ 130#define MCE_RSP_TX_TIMEOUT 0x81 /* tx timed out, 2 bytes */ 131 132/* Misc commands/responses not defined in the MCE remote/transceiver spec */ 133#define MCE_CMD_SIG_END 0x01 /* End of signal */ 134#define MCE_CMD_PING 0x03 /* Ping device */ 135#define MCE_CMD_UNKNOWN 0x04 /* Unknown */ 136#define MCE_CMD_UNKNOWN2 0x05 /* Unknown */ 137#define MCE_CMD_UNKNOWN3 0x09 /* Unknown */ 138#define MCE_CMD_UNKNOWN4 0x0a /* Unknown */ 139#define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */ 140#define MCE_CMD_UNKNOWN5 0x0e /* Unknown */ 141#define MCE_CMD_UNKNOWN6 0x0f /* Unknown */ 142#define MCE_CMD_UNKNOWN8 0x19 /* Unknown */ 143#define MCE_CMD_UNKNOWN9 0x1b /* Unknown */ 144#define MCE_CMD_NULL 0x00 /* These show up various places... */ 145 146/* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR, 147 * then we're looking at a raw IR data sample */ 148#define MCE_COMMAND_IRDATA 0x80 149#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */ 150 151/* module parameters */ 152#ifdef CONFIG_USB_DEBUG 153static int debug = 1; 154#else 155static int debug; 156#endif 157 158#define mce_dbg(dev, fmt, ...) \ 159 do { \ 160 if (debug) \ 161 dev_info(dev, fmt, ## __VA_ARGS__); \ 162 } while (0) 163 164/* general constants */ 165#define SEND_FLAG_IN_PROGRESS 1 166#define SEND_FLAG_COMPLETE 2 167#define RECV_FLAG_IN_PROGRESS 3 168#define RECV_FLAG_COMPLETE 4 169 170#define MCEUSB_RX 1 171#define MCEUSB_TX 2 172 173#define VENDOR_PHILIPS 0x0471 174#define VENDOR_SMK 0x0609 175#define VENDOR_TATUNG 0x1460 176#define VENDOR_GATEWAY 0x107b 177#define VENDOR_SHUTTLE 0x1308 178#define VENDOR_SHUTTLE2 0x051c 179#define VENDOR_MITSUMI 0x03ee 180#define VENDOR_TOPSEED 0x1784 181#define VENDOR_RICAVISION 0x179d 182#define VENDOR_ITRON 0x195d 183#define VENDOR_FIC 0x1509 184#define VENDOR_LG 0x043e 185#define VENDOR_MICROSOFT 0x045e 186#define VENDOR_FORMOSA 0x147a 187#define VENDOR_FINTEK 0x1934 188#define VENDOR_PINNACLE 0x2304 189#define VENDOR_ECS 0x1019 190#define VENDOR_WISTRON 0x0fb8 191#define VENDOR_COMPRO 0x185b 192#define VENDOR_NORTHSTAR 0x04eb 193#define VENDOR_REALTEK 0x0bda 194#define VENDOR_TIVO 0x105a 195#define VENDOR_CONEXANT 0x0572 196 197enum mceusb_model_type { 198 MCE_GEN2 = 0, /* Most boards */ 199 MCE_GEN1, 200 MCE_GEN3, 201 MCE_GEN2_TX_INV, 202 POLARIS_EVK, 203 CX_HYBRID_TV, 204 MULTIFUNCTION, 205 TIVO_KIT, 206 MCE_GEN2_NO_TX, 207}; 208 209struct mceusb_model { 210 u32 mce_gen1:1; 211 u32 mce_gen2:1; 212 u32 mce_gen3:1; 213 u32 tx_mask_normal:1; 214 u32 no_tx:1; 215 216 int ir_intfnum; 217 218 const char *rc_map; /* Allow specify a per-board map */ 219 const char *name; /* per-board name */ 220}; 221 222static const struct mceusb_model mceusb_model[] = { 223 [MCE_GEN1] = { 224 .mce_gen1 = 1, 225 .tx_mask_normal = 1, 226 }, 227 [MCE_GEN2] = { 228 .mce_gen2 = 1, 229 }, 230 [MCE_GEN2_NO_TX] = { 231 .mce_gen2 = 1, 232 .no_tx = 1, 233 }, 234 [MCE_GEN2_TX_INV] = { 235 .mce_gen2 = 1, 236 .tx_mask_normal = 1, 237 }, 238 [MCE_GEN3] = { 239 .mce_gen3 = 1, 240 .tx_mask_normal = 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 .rc_map = RC_MAP_HAUPPAUGE, 249 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 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 [MULTIFUNCTION] = { 256 .mce_gen2 = 1, 257 .ir_intfnum = 2, 258 }, 259 [TIVO_KIT] = { 260 .mce_gen2 = 1, 261 .rc_map = RC_MAP_TIVO, 262 }, 263}; 264 265static struct usb_device_id mceusb_dev_table[] = { 266 /* Original Microsoft MCE IR Transceiver (often HP-branded) */ 267 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d), 268 .driver_info = MCE_GEN1 }, 269 /* Philips Infrared Transceiver - Sahara branded */ 270 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, 271 /* Philips Infrared Transceiver - HP branded */ 272 { USB_DEVICE(VENDOR_PHILIPS, 0x060c), 273 .driver_info = MCE_GEN2_TX_INV }, 274 /* Philips SRM5100 */ 275 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, 276 /* Philips Infrared Transceiver - Omaura */ 277 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, 278 /* Philips Infrared Transceiver - Spinel plus */ 279 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, 280 /* Philips eHome Infrared Transceiver */ 281 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, 282 /* Philips/Spinel plus IR transceiver for ASUS */ 283 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, 284 /* Philips/Spinel plus IR transceiver for ASUS */ 285 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, 286 /* Philips IR transceiver (Dell branded) */ 287 { USB_DEVICE(VENDOR_PHILIPS, 0x2093) }, 288 /* Realtek MCE IR Receiver and card reader */ 289 { USB_DEVICE(VENDOR_REALTEK, 0x0161), 290 .driver_info = MULTIFUNCTION }, 291 /* SMK/Toshiba G83C0004D410 */ 292 { USB_DEVICE(VENDOR_SMK, 0x031d), 293 .driver_info = MCE_GEN2_TX_INV }, 294 /* SMK eHome Infrared Transceiver (Sony VAIO) */ 295 { USB_DEVICE(VENDOR_SMK, 0x0322), 296 .driver_info = MCE_GEN2_TX_INV }, 297 /* bundled with Hauppauge PVR-150 */ 298 { USB_DEVICE(VENDOR_SMK, 0x0334), 299 .driver_info = MCE_GEN2_TX_INV }, 300 /* SMK eHome Infrared Transceiver */ 301 { USB_DEVICE(VENDOR_SMK, 0x0338) }, 302 /* SMK/I-O Data GV-MC7/RCKIT Receiver */ 303 { USB_DEVICE(VENDOR_SMK, 0x0353), 304 .driver_info = MCE_GEN2_NO_TX }, 305 /* Tatung eHome Infrared Transceiver */ 306 { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, 307 /* Shuttle eHome Infrared Transceiver */ 308 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, 309 /* Shuttle eHome Infrared Transceiver */ 310 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, 311 /* Gateway eHome Infrared Transceiver */ 312 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, 313 /* Mitsumi */ 314 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, 315 /* Topseed eHome Infrared Transceiver */ 316 { USB_DEVICE(VENDOR_TOPSEED, 0x0001), 317 .driver_info = MCE_GEN2_TX_INV }, 318 /* Topseed HP eHome Infrared Transceiver */ 319 { USB_DEVICE(VENDOR_TOPSEED, 0x0006), 320 .driver_info = MCE_GEN2_TX_INV }, 321 /* Topseed eHome Infrared Transceiver */ 322 { USB_DEVICE(VENDOR_TOPSEED, 0x0007), 323 .driver_info = MCE_GEN2_TX_INV }, 324 /* Topseed eHome Infrared Transceiver */ 325 { USB_DEVICE(VENDOR_TOPSEED, 0x0008), 326 .driver_info = MCE_GEN3 }, 327 /* Topseed eHome Infrared Transceiver */ 328 { USB_DEVICE(VENDOR_TOPSEED, 0x000a), 329 .driver_info = MCE_GEN2_TX_INV }, 330 /* Topseed eHome Infrared Transceiver */ 331 { USB_DEVICE(VENDOR_TOPSEED, 0x0011), 332 .driver_info = MCE_GEN3 }, 333 /* Ricavision internal Infrared Transceiver */ 334 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, 335 /* Itron ione Libra Q-11 */ 336 { USB_DEVICE(VENDOR_ITRON, 0x7002) }, 337 /* FIC eHome Infrared Transceiver */ 338 { USB_DEVICE(VENDOR_FIC, 0x9242) }, 339 /* LG eHome Infrared Transceiver */ 340 { USB_DEVICE(VENDOR_LG, 0x9803) }, 341 /* Microsoft MCE Infrared Transceiver */ 342 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, 343 /* Formosa eHome Infrared Transceiver */ 344 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, 345 /* Formosa21 / eHome Infrared Receiver */ 346 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, 347 /* Formosa aim / Trust MCE Infrared Receiver */ 348 { USB_DEVICE(VENDOR_FORMOSA, 0xe017), 349 .driver_info = MCE_GEN2_NO_TX }, 350 /* Formosa Industrial Computing / Beanbag Emulation Device */ 351 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, 352 /* Formosa21 / eHome Infrared Receiver */ 353 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, 354 /* Formosa Industrial Computing AIM IR605/A */ 355 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, 356 /* Formosa Industrial Computing */ 357 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, 358 /* Fintek eHome Infrared Transceiver (HP branded) */ 359 { USB_DEVICE(VENDOR_FINTEK, 0x5168) }, 360 /* Fintek eHome Infrared Transceiver */ 361 { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, 362 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ 363 { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, 364 /* Pinnacle Remote Kit */ 365 { USB_DEVICE(VENDOR_PINNACLE, 0x0225), 366 .driver_info = MCE_GEN3 }, 367 /* Elitegroup Computer Systems IR */ 368 { USB_DEVICE(VENDOR_ECS, 0x0f38) }, 369 /* Wistron Corp. eHome Infrared Receiver */ 370 { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, 371 /* Compro K100 */ 372 { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, 373 /* Compro K100 v2 */ 374 { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, 375 /* Northstar Systems, Inc. eHome Infrared Transceiver */ 376 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, 377 /* TiVo PC IR Receiver */ 378 { USB_DEVICE(VENDOR_TIVO, 0x2000), 379 .driver_info = TIVO_KIT }, 380 /* Conexant Hybrid TV "Shelby" Polaris SDK */ 381 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1), 382 .driver_info = POLARIS_EVK }, 383 /* Conexant Hybrid TV RDU253S Polaris */ 384 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5), 385 .driver_info = CX_HYBRID_TV }, 386 /* Terminating entry */ 387 { } 388}; 389 390/* data structure for each usb transceiver */ 391struct mceusb_dev { 392 /* ir-core bits */ 393 struct rc_dev *rc; 394 395 /* optional features we can enable */ 396 bool carrier_report_enabled; 397 bool learning_enabled; 398 399 /* core device bits */ 400 struct device *dev; 401 402 /* usb */ 403 struct usb_device *usbdev; 404 struct urb *urb_in; 405 struct usb_endpoint_descriptor *usb_ep_in; 406 struct usb_endpoint_descriptor *usb_ep_out; 407 408 /* buffers and dma */ 409 unsigned char *buf_in; 410 unsigned int len_in; 411 dma_addr_t dma_in; 412 dma_addr_t dma_out; 413 414 enum { 415 CMD_HEADER = 0, 416 SUBCMD, 417 CMD_DATA, 418 PARSE_IRDATA, 419 } parser_state; 420 421 u8 cmd, rem; /* Remaining IR data bytes in packet */ 422 423 struct { 424 u32 connected:1; 425 u32 tx_mask_normal:1; 426 u32 microsoft_gen1:1; 427 u32 no_tx:1; 428 } flags; 429 430 /* transmit support */ 431 int send_flags; 432 u32 carrier; 433 unsigned char tx_mask; 434 435 char name[128]; 436 char phys[64]; 437 enum mceusb_model_type model; 438}; 439 440/* MCE Device Command Strings, generally a port and command pair */ 441static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS, 442 MCE_CMD_RESUME}; 443static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION}; 444static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION}; 445static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2}; 446static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS}; 447static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT}; 448static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS}; 449static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN}; 450/* sub in desired values in lower byte or bytes for full command */ 451/* FIXME: make use of these for transmit. 452static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, 453 MCE_CMD_SETIRCFS, 0x00, 0x00}; 454static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00}; 455static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, 456 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00}; 457static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR, 458 MCE_RSP_EQIRRXPORTEN, 0x00}; 459*/ 460 461static int mceusb_cmdsize(u8 cmd, u8 subcmd) 462{ 463 int datasize = 0; 464 465 switch (cmd) { 466 case MCE_CMD_NULL: 467 if (subcmd == MCE_CMD_PORT_SYS) 468 datasize = 1; 469 break; 470 case MCE_CMD_PORT_SYS: 471 switch (subcmd) { 472 case MCE_RSP_EQWAKEVERSION: 473 datasize = 4; 474 break; 475 case MCE_CMD_G_REVISION: 476 datasize = 2; 477 break; 478 case MCE_RSP_EQWAKESUPPORT: 479 datasize = 1; 480 break; 481 } 482 case MCE_CMD_PORT_IR: 483 switch (subcmd) { 484 case MCE_CMD_UNKNOWN: 485 case MCE_RSP_EQIRCFS: 486 case MCE_RSP_EQIRTIMEOUT: 487 case MCE_RSP_EQIRRXCFCNT: 488 datasize = 2; 489 break; 490 case MCE_CMD_SIG_END: 491 case MCE_RSP_EQIRTXPORTS: 492 case MCE_RSP_EQIRRXPORTEN: 493 datasize = 1; 494 break; 495 } 496 } 497 return datasize; 498} 499 500static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf, 501 int offset, int len, bool out) 502{ 503 char codes[USB_BUFLEN * 3 + 1]; 504 char inout[9]; 505 u8 cmd, subcmd, data1, data2, data3, data4, data5; 506 struct device *dev = ir->dev; 507 int i, start, skip = 0; 508 509 if (!debug) 510 return; 511 512 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 513 if (ir->flags.microsoft_gen1 && !out && !offset) 514 skip = 2; 515 516 if (len <= skip) 517 return; 518 519 for (i = 0; i < len && i < USB_BUFLEN; i++) 520 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff); 521 522 dev_info(dev, "%sx data: %s(length=%d)\n", 523 (out ? "t" : "r"), codes, len); 524 525 if (out) 526 strcpy(inout, "Request\0"); 527 else 528 strcpy(inout, "Got\0"); 529 530 start = offset + skip; 531 cmd = buf[start] & 0xff; 532 subcmd = buf[start + 1] & 0xff; 533 data1 = buf[start + 2] & 0xff; 534 data2 = buf[start + 3] & 0xff; 535 data3 = buf[start + 4] & 0xff; 536 data4 = buf[start + 5] & 0xff; 537 data5 = buf[start + 6] & 0xff; 538 539 switch (cmd) { 540 case MCE_CMD_NULL: 541 if ((subcmd == MCE_CMD_PORT_SYS) && 542 (data1 == MCE_CMD_RESUME)) 543 dev_info(dev, "Device resume requested\n"); 544 else 545 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 546 cmd, subcmd); 547 break; 548 case MCE_CMD_PORT_SYS: 549 switch (subcmd) { 550 case MCE_RSP_EQEMVER: 551 if (!out) 552 dev_info(dev, "Emulator interface version %x\n", 553 data1); 554 break; 555 case MCE_CMD_G_REVISION: 556 if (len == 2) 557 dev_info(dev, "Get hw/sw rev?\n"); 558 else 559 dev_info(dev, "hw/sw rev 0x%02x 0x%02x " 560 "0x%02x 0x%02x\n", data1, data2, 561 buf[start + 4], buf[start + 5]); 562 break; 563 case MCE_CMD_RESUME: 564 dev_info(dev, "Device resume requested\n"); 565 break; 566 case MCE_RSP_CMD_ILLEGAL: 567 dev_info(dev, "Illegal PORT_SYS command\n"); 568 break; 569 case MCE_RSP_EQWAKEVERSION: 570 if (!out) 571 dev_info(dev, "Wake version, proto: 0x%02x, " 572 "payload: 0x%02x, address: 0x%02x, " 573 "version: 0x%02x\n", 574 data1, data2, data3, data4); 575 break; 576 case MCE_RSP_GETPORTSTATUS: 577 if (!out) 578 /* We use data1 + 1 here, to match hw labels */ 579 dev_info(dev, "TX port %d: blaster is%s connected\n", 580 data1 + 1, data4 ? " not" : ""); 581 break; 582 default: 583 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 584 cmd, subcmd); 585 break; 586 } 587 break; 588 case MCE_CMD_PORT_IR: 589 switch (subcmd) { 590 case MCE_CMD_SIG_END: 591 dev_info(dev, "End of signal\n"); 592 break; 593 case MCE_CMD_PING: 594 dev_info(dev, "Ping\n"); 595 break; 596 case MCE_CMD_UNKNOWN: 597 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n", 598 data1, data2); 599 break; 600 case MCE_CMD_SETIRCFS: 601 dev_info(dev, "%s carrier mode and freq of " 602 "0x%02x 0x%02x\n", inout, data1, data2); 603 break; 604 case MCE_CMD_GETIRCFS: 605 dev_info(dev, "Get carrier mode and freq\n"); 606 break; 607 case MCE_RSP_EQIRTXPORTS: 608 dev_info(dev, "%s transmit blaster mask of 0x%02x\n", 609 inout, data1); 610 break; 611 case MCE_RSP_EQIRTIMEOUT: 612 /* value is in units of 50us, so x*50/1000 ms */ 613 dev_info(dev, "%s receive timeout of %d ms\n", 614 inout, 615 ((data1 << 8) | data2) * MCE_TIME_UNIT / 1000); 616 break; 617 case MCE_CMD_GETIRTIMEOUT: 618 dev_info(dev, "Get receive timeout\n"); 619 break; 620 case MCE_CMD_GETIRTXPORTS: 621 dev_info(dev, "Get transmit blaster mask\n"); 622 break; 623 case MCE_RSP_EQIRRXPORTEN: 624 dev_info(dev, "%s %s-range receive sensor in use\n", 625 inout, data1 == 0x02 ? "short" : "long"); 626 break; 627 case MCE_CMD_GETIRRXPORTEN: 628 /* aka MCE_RSP_EQIRRXCFCNT */ 629 if (out) 630 dev_info(dev, "Get receive sensor\n"); 631 else if (ir->learning_enabled) 632 dev_info(dev, "RX pulse count: %d\n", 633 ((data1 << 8) | data2)); 634 break; 635 case MCE_RSP_EQIRNUMPORTS: 636 if (out) 637 break; 638 dev_info(dev, "Num TX ports: %x, num RX ports: %x\n", 639 data1, data2); 640 break; 641 case MCE_RSP_CMD_ILLEGAL: 642 dev_info(dev, "Illegal PORT_IR command\n"); 643 break; 644 default: 645 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 646 cmd, subcmd); 647 break; 648 } 649 break; 650 default: 651 break; 652 } 653 654 if (cmd == MCE_IRDATA_TRAILER) 655 dev_info(dev, "End of raw IR data\n"); 656 else if ((cmd != MCE_CMD_PORT_IR) && 657 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA)) 658 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem); 659} 660 661static void mce_async_callback(struct urb *urb, struct pt_regs *regs) 662{ 663 struct mceusb_dev *ir; 664 int len; 665 666 if (!urb) 667 return; 668 669 ir = urb->context; 670 if (ir) { 671 len = urb->actual_length; 672 673 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true); 674 } 675 676 /* the transfer buffer and urb were allocated in mce_request_packet */ 677 kfree(urb->transfer_buffer); 678 usb_free_urb(urb); 679} 680 681/* request incoming or send outgoing usb packet - used to initialize remote */ 682static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data, 683 int size, int urb_type) 684{ 685 int res, pipe; 686 struct urb *async_urb; 687 struct device *dev = ir->dev; 688 unsigned char *async_buf; 689 690 if (urb_type == MCEUSB_TX) { 691 async_urb = usb_alloc_urb(0, GFP_KERNEL); 692 if (unlikely(!async_urb)) { 693 dev_err(dev, "Error, couldn't allocate urb!\n"); 694 return; 695 } 696 697 async_buf = kzalloc(size, GFP_KERNEL); 698 if (!async_buf) { 699 dev_err(dev, "Error, couldn't allocate buf!\n"); 700 usb_free_urb(async_urb); 701 return; 702 } 703 704 /* outbound data */ 705 pipe = usb_sndintpipe(ir->usbdev, 706 ir->usb_ep_out->bEndpointAddress); 707 usb_fill_int_urb(async_urb, ir->usbdev, pipe, 708 async_buf, size, (usb_complete_t)mce_async_callback, 709 ir, ir->usb_ep_out->bInterval); 710 memcpy(async_buf, data, size); 711 712 } else if (urb_type == MCEUSB_RX) { 713 /* standard request */ 714 async_urb = ir->urb_in; 715 ir->send_flags = RECV_FLAG_IN_PROGRESS; 716 717 } else { 718 dev_err(dev, "Error! Unknown urb type %d\n", urb_type); 719 return; 720 } 721 722 mce_dbg(dev, "receive request called (size=%#x)\n", size); 723 724 async_urb->transfer_buffer_length = size; 725 async_urb->dev = ir->usbdev; 726 727 res = usb_submit_urb(async_urb, GFP_ATOMIC); 728 if (res) { 729 mce_dbg(dev, "receive request FAILED! (res=%d)\n", res); 730 return; 731 } 732 mce_dbg(dev, "receive request complete (res=%d)\n", res); 733} 734 735static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) 736{ 737 mce_request_packet(ir, data, size, MCEUSB_TX); 738} 739 740static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size) 741{ 742 mce_request_packet(ir, NULL, size, MCEUSB_RX); 743} 744 745/* Send data out the IR blaster port(s) */ 746static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count) 747{ 748 struct mceusb_dev *ir = dev->priv; 749 int i, ret = 0; 750 int cmdcount = 0; 751 unsigned char *cmdbuf; /* MCE command buffer */ 752 long signal_duration = 0; /* Singnal length in us */ 753 struct timeval start_time, end_time; 754 755 do_gettimeofday(&start_time); 756 757 cmdbuf = kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE, GFP_KERNEL); 758 if (!cmdbuf) 759 return -ENOMEM; 760 761 /* MCE tx init header */ 762 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR; 763 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS; 764 cmdbuf[cmdcount++] = ir->tx_mask; 765 766 /* Generate mce packet data */ 767 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { 768 signal_duration += txbuf[i]; 769 txbuf[i] = txbuf[i] / MCE_TIME_UNIT; 770 771 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ 772 773 /* Insert mce packet header every 4th entry */ 774 if ((cmdcount < MCE_CMDBUF_SIZE) && 775 (cmdcount - MCE_TX_HEADER_LENGTH) % 776 MCE_CODE_LENGTH == 0) 777 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; 778 779 /* Insert mce packet data */ 780 if (cmdcount < MCE_CMDBUF_SIZE) 781 cmdbuf[cmdcount++] = 782 (txbuf[i] < MCE_PULSE_BIT ? 783 txbuf[i] : MCE_MAX_PULSE_LENGTH) | 784 (i & 1 ? 0x00 : MCE_PULSE_BIT); 785 else { 786 ret = -EINVAL; 787 goto out; 788 } 789 790 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && 791 (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); 792 } 793 794 /* Fix packet length in last header */ 795 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] = 796 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) % 797 MCE_CODE_LENGTH - 1; 798 799 /* Check if we have room for the empty packet at the end */ 800 if (cmdcount >= MCE_CMDBUF_SIZE) { 801 ret = -EINVAL; 802 goto out; 803 } 804 805 /* All mce commands end with an empty packet (0x80) */ 806 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; 807 808 /* Transmit the command to the mce device */ 809 mce_async_out(ir, cmdbuf, cmdcount); 810 811 /* 812 * The lircd gap calculation expects the write function to 813 * wait the time it takes for the ircommand to be sent before 814 * it returns. 815 */ 816 do_gettimeofday(&end_time); 817 signal_duration -= (end_time.tv_usec - start_time.tv_usec) + 818 (end_time.tv_sec - start_time.tv_sec) * 1000000; 819 820 /* delay with the closest number of ticks */ 821 set_current_state(TASK_INTERRUPTIBLE); 822 schedule_timeout(usecs_to_jiffies(signal_duration)); 823 824out: 825 kfree(cmdbuf); 826 return ret ? ret : count; 827} 828 829/* Sets active IR outputs -- mce devices typically have two */ 830static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) 831{ 832 struct mceusb_dev *ir = dev->priv; 833 834 if (ir->flags.tx_mask_normal) 835 ir->tx_mask = mask; 836 else 837 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? 838 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; 839 840 return 0; 841} 842 843/* Sets the send carrier frequency and mode */ 844static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier) 845{ 846 struct mceusb_dev *ir = dev->priv; 847 int clk = 10000000; 848 int prescaler = 0, divisor = 0; 849 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR, 850 MCE_CMD_SETIRCFS, 0x00, 0x00 }; 851 852 /* Carrier has changed */ 853 if (ir->carrier != carrier) { 854 855 if (carrier == 0) { 856 ir->carrier = carrier; 857 cmdbuf[2] = MCE_CMD_SIG_END; 858 cmdbuf[3] = MCE_IRDATA_TRAILER; 859 mce_dbg(ir->dev, "%s: disabling carrier " 860 "modulation\n", __func__); 861 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 862 return carrier; 863 } 864 865 for (prescaler = 0; prescaler < 4; ++prescaler) { 866 divisor = (clk >> (2 * prescaler)) / carrier; 867 if (divisor <= 0xff) { 868 ir->carrier = carrier; 869 cmdbuf[2] = prescaler; 870 cmdbuf[3] = divisor; 871 mce_dbg(ir->dev, "%s: requesting %u HZ " 872 "carrier\n", __func__, carrier); 873 874 /* Transmit new carrier to mce device */ 875 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 876 return carrier; 877 } 878 } 879 880 return -EINVAL; 881 882 } 883 884 return carrier; 885} 886 887/* 888 * We don't do anything but print debug spew for many of the command bits 889 * we receive from the hardware, but some of them are useful information 890 * we want to store so that we can use them. 891 */ 892static void mceusb_handle_command(struct mceusb_dev *ir, int index) 893{ 894 u8 hi = ir->buf_in[index + 1] & 0xff; 895 u8 lo = ir->buf_in[index + 2] & 0xff; 896 897 switch (ir->buf_in[index]) { 898 /* 2-byte return value commands */ 899 case MCE_RSP_EQIRTIMEOUT: 900 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT); 901 break; 902 903 /* 1-byte return value commands */ 904 case MCE_RSP_EQIRTXPORTS: 905 ir->tx_mask = hi; 906 break; 907 case MCE_RSP_EQIRRXPORTEN: 908 ir->learning_enabled = ((hi & 0x02) == 0x02); 909 break; 910 default: 911 break; 912 } 913} 914 915static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) 916{ 917 DEFINE_IR_RAW_EVENT(rawir); 918 int i = 0; 919 920 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 921 if (ir->flags.microsoft_gen1) 922 i = 2; 923 924 /* if there's no data, just return now */ 925 if (buf_len <= i) 926 return; 927 928 for (; i < buf_len; i++) { 929 switch (ir->parser_state) { 930 case SUBCMD: 931 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]); 932 mceusb_dev_printdata(ir, ir->buf_in, i - 1, 933 ir->rem + 2, false); 934 mceusb_handle_command(ir, i); 935 ir->parser_state = CMD_DATA; 936 break; 937 case PARSE_IRDATA: 938 ir->rem--; 939 init_ir_raw_event(&rawir); 940 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); 941 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK) 942 * US_TO_NS(MCE_TIME_UNIT); 943 944 mce_dbg(ir->dev, "Storing %s with duration %d\n", 945 rawir.pulse ? "pulse" : "space", 946 rawir.duration); 947 948 ir_raw_event_store_with_filter(ir->rc, &rawir); 949 break; 950 case CMD_DATA: 951 ir->rem--; 952 break; 953 case CMD_HEADER: 954 /* decode mce packets of the form (84),AA,BB,CC,DD */ 955 /* IR data packets can span USB messages - rem */ 956 ir->cmd = ir->buf_in[i]; 957 if ((ir->cmd == MCE_CMD_PORT_IR) || 958 ((ir->cmd & MCE_PORT_MASK) != 959 MCE_COMMAND_IRDATA)) { 960 ir->parser_state = SUBCMD; 961 continue; 962 } 963 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); 964 mceusb_dev_printdata(ir, ir->buf_in, 965 i, ir->rem + 1, false); 966 if (ir->rem) 967 ir->parser_state = PARSE_IRDATA; 968 else 969 ir_raw_event_reset(ir->rc); 970 break; 971 } 972 973 if (ir->parser_state != CMD_HEADER && !ir->rem) 974 ir->parser_state = CMD_HEADER; 975 } 976 mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n"); 977 ir_raw_event_handle(ir->rc); 978} 979 980static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs) 981{ 982 struct mceusb_dev *ir; 983 int buf_len; 984 985 if (!urb) 986 return; 987 988 ir = urb->context; 989 if (!ir) { 990 usb_unlink_urb(urb); 991 return; 992 } 993 994 buf_len = urb->actual_length; 995 996 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) { 997 ir->send_flags = SEND_FLAG_COMPLETE; 998 mce_dbg(ir->dev, "setup answer received %d bytes\n", 999 buf_len); 1000 } 1001 1002 switch (urb->status) { 1003 /* success */ 1004 case 0: 1005 mceusb_process_ir_data(ir, buf_len); 1006 break; 1007 1008 case -ECONNRESET: 1009 case -ENOENT: 1010 case -ESHUTDOWN: 1011 usb_unlink_urb(urb); 1012 return; 1013 1014 case -EPIPE: 1015 default: 1016 mce_dbg(ir->dev, "Error: urb status = %d\n", urb->status); 1017 break; 1018 } 1019 1020 usb_submit_urb(urb, GFP_ATOMIC); 1021} 1022 1023static void mceusb_gen1_init(struct mceusb_dev *ir) 1024{ 1025 int ret; 1026 struct device *dev = ir->dev; 1027 char *data; 1028 1029 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); 1030 if (!data) { 1031 dev_err(dev, "%s: memory allocation failed!\n", __func__); 1032 return; 1033 } 1034 1035 /* 1036 * This is a strange one. Windows issues a set address to the device 1037 * on the receive control pipe and expect a certain value pair back 1038 */ 1039 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), 1040 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, 1041 data, USB_CTRL_MSG_SZ, HZ * 3); 1042 mce_dbg(dev, "%s - ret = %d\n", __func__, ret); 1043 mce_dbg(dev, "%s - data[0] = %d, data[1] = %d\n", 1044 __func__, data[0], data[1]); 1045 1046 /* set feature: bit rate 38400 bps */ 1047 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1048 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, 1049 0xc04e, 0x0000, NULL, 0, HZ * 3); 1050 1051 mce_dbg(dev, "%s - ret = %d\n", __func__, ret); 1052 1053 /* bRequest 4: set char length to 8 bits */ 1054 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1055 4, USB_TYPE_VENDOR, 1056 0x0808, 0x0000, NULL, 0, HZ * 3); 1057 mce_dbg(dev, "%s - retB = %d\n", __func__, ret); 1058 1059 /* bRequest 2: set handshaking to use DTR/DSR */ 1060 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1061 2, USB_TYPE_VENDOR, 1062 0x0000, 0x0100, NULL, 0, HZ * 3); 1063 mce_dbg(dev, "%s - retC = %d\n", __func__, ret); 1064 1065 /* device resume */ 1066 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1067 1068 /* get hw/sw revision? */ 1069 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1070 1071 kfree(data); 1072}; 1073 1074static void mceusb_gen2_init(struct mceusb_dev *ir) 1075{ 1076 /* device resume */ 1077 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1078 1079 /* get hw/sw revision? */ 1080 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1081 1082 /* get wake version (protocol, key, address) */ 1083 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION)); 1084 1085 /* unknown what this one actually returns... */ 1086 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); 1087} 1088 1089static void mceusb_get_parameters(struct mceusb_dev *ir) 1090{ 1091 /* get the carrier and frequency */ 1092 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); 1093 1094 if (!ir->flags.no_tx) 1095 /* get the transmitter bitmask */ 1096 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); 1097 1098 /* get receiver timeout value */ 1099 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1100 1101 /* get receiver sensor setting */ 1102 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); 1103} 1104 1105static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) 1106{ 1107 struct device *dev = ir->dev; 1108 struct rc_dev *rc; 1109 int ret; 1110 1111 rc = rc_allocate_device(); 1112 if (!rc) { 1113 dev_err(dev, "remote dev allocation failed\n"); 1114 goto out; 1115 } 1116 1117 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", 1118 mceusb_model[ir->model].name ? 1119 mceusb_model[ir->model].name : 1120 "Media Center Ed. eHome Infrared Remote Transceiver", 1121 le16_to_cpu(ir->usbdev->descriptor.idVendor), 1122 le16_to_cpu(ir->usbdev->descriptor.idProduct)); 1123 1124 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); 1125 1126 rc->input_name = ir->name; 1127 rc->input_phys = ir->phys; 1128 usb_to_input_id(ir->usbdev, &rc->input_id); 1129 rc->dev.parent = dev; 1130 rc->priv = ir; 1131 rc->driver_type = RC_DRIVER_IR_RAW; 1132 rc->allowed_protos = RC_TYPE_ALL; 1133 rc->timeout = MS_TO_NS(100); 1134 if (!ir->flags.no_tx) { 1135 rc->s_tx_mask = mceusb_set_tx_mask; 1136 rc->s_tx_carrier = mceusb_set_tx_carrier; 1137 rc->tx_ir = mceusb_tx_ir; 1138 } 1139 rc->driver_name = DRIVER_NAME; 1140 rc->map_name = mceusb_model[ir->model].rc_map ? 1141 mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE; 1142 1143 ret = rc_register_device(rc); 1144 if (ret < 0) { 1145 dev_err(dev, "remote dev registration failed\n"); 1146 goto out; 1147 } 1148 1149 return rc; 1150 1151out: 1152 rc_free_device(rc); 1153 return NULL; 1154} 1155 1156static int __devinit mceusb_dev_probe(struct usb_interface *intf, 1157 const struct usb_device_id *id) 1158{ 1159 struct usb_device *dev = interface_to_usbdev(intf); 1160 struct usb_host_interface *idesc; 1161 struct usb_endpoint_descriptor *ep = NULL; 1162 struct usb_endpoint_descriptor *ep_in = NULL; 1163 struct usb_endpoint_descriptor *ep_out = NULL; 1164 struct mceusb_dev *ir = NULL; 1165 int pipe, maxp, i; 1166 char buf[63], name[128] = ""; 1167 enum mceusb_model_type model = id->driver_info; 1168 bool is_gen3; 1169 bool is_microsoft_gen1; 1170 bool tx_mask_normal; 1171 int ir_intfnum; 1172 1173 mce_dbg(&intf->dev, "%s called\n", __func__); 1174 1175 idesc = intf->cur_altsetting; 1176 1177 is_gen3 = mceusb_model[model].mce_gen3; 1178 is_microsoft_gen1 = mceusb_model[model].mce_gen1; 1179 tx_mask_normal = mceusb_model[model].tx_mask_normal; 1180 ir_intfnum = mceusb_model[model].ir_intfnum; 1181 1182 /* There are multi-function devices with non-IR interfaces */ 1183 if (idesc->desc.bInterfaceNumber != ir_intfnum) 1184 return -ENODEV; 1185 1186 /* step through the endpoints to find first bulk in and out endpoint */ 1187 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { 1188 ep = &idesc->endpoint[i].desc; 1189 1190 if ((ep_in == NULL) 1191 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1192 == USB_DIR_IN) 1193 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1194 == USB_ENDPOINT_XFER_BULK) 1195 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1196 == USB_ENDPOINT_XFER_INT))) { 1197 1198 ep_in = ep; 1199 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT; 1200 ep_in->bInterval = 1; 1201 mce_dbg(&intf->dev, "acceptable inbound endpoint " 1202 "found\n"); 1203 } 1204 1205 if ((ep_out == NULL) 1206 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1207 == USB_DIR_OUT) 1208 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1209 == USB_ENDPOINT_XFER_BULK) 1210 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1211 == USB_ENDPOINT_XFER_INT))) { 1212 1213 ep_out = ep; 1214 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT; 1215 ep_out->bInterval = 1; 1216 mce_dbg(&intf->dev, "acceptable outbound endpoint " 1217 "found\n"); 1218 } 1219 } 1220 if (ep_in == NULL) { 1221 mce_dbg(&intf->dev, "inbound and/or endpoint not found\n"); 1222 return -ENODEV; 1223 } 1224 1225 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); 1226 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 1227 1228 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); 1229 if (!ir) 1230 goto mem_alloc_fail; 1231 1232 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); 1233 if (!ir->buf_in) 1234 goto buf_in_alloc_fail; 1235 1236 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); 1237 if (!ir->urb_in) 1238 goto urb_in_alloc_fail; 1239 1240 ir->usbdev = dev; 1241 ir->dev = &intf->dev; 1242 ir->len_in = maxp; 1243 ir->flags.microsoft_gen1 = is_microsoft_gen1; 1244 ir->flags.tx_mask_normal = tx_mask_normal; 1245 ir->flags.no_tx = mceusb_model[model].no_tx; 1246 ir->model = model; 1247 1248 /* Saving usb interface data for use by the transmitter routine */ 1249 ir->usb_ep_in = ep_in; 1250 ir->usb_ep_out = ep_out; 1251 1252 if (dev->descriptor.iManufacturer 1253 && usb_string(dev, dev->descriptor.iManufacturer, 1254 buf, sizeof(buf)) > 0) 1255 strlcpy(name, buf, sizeof(name)); 1256 if (dev->descriptor.iProduct 1257 && usb_string(dev, dev->descriptor.iProduct, 1258 buf, sizeof(buf)) > 0) 1259 snprintf(name + strlen(name), sizeof(name) - strlen(name), 1260 " %s", buf); 1261 1262 ir->rc = mceusb_init_rc_dev(ir); 1263 if (!ir->rc) 1264 goto rc_dev_fail; 1265 1266 /* wire up inbound data handler */ 1267 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, 1268 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval); 1269 ir->urb_in->transfer_dma = ir->dma_in; 1270 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1271 1272 /* flush buffers on the device */ 1273 mce_dbg(&intf->dev, "Flushing receive buffers\n"); 1274 mce_flush_rx_buffer(ir, maxp); 1275 1276 /* initialize device */ 1277 if (ir->flags.microsoft_gen1) 1278 mceusb_gen1_init(ir); 1279 else if (!is_gen3) 1280 mceusb_gen2_init(ir); 1281 1282 mceusb_get_parameters(ir); 1283 1284 if (!ir->flags.no_tx) 1285 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); 1286 1287 usb_set_intfdata(intf, ir); 1288 1289 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name, 1290 dev->bus->busnum, dev->devnum); 1291 1292 return 0; 1293 1294 /* Error-handling path */ 1295rc_dev_fail: 1296 usb_free_urb(ir->urb_in); 1297urb_in_alloc_fail: 1298 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); 1299buf_in_alloc_fail: 1300 kfree(ir); 1301mem_alloc_fail: 1302 dev_err(&intf->dev, "%s: device setup failed!\n", __func__); 1303 1304 return -ENOMEM; 1305} 1306 1307 1308static void __devexit mceusb_dev_disconnect(struct usb_interface *intf) 1309{ 1310 struct usb_device *dev = interface_to_usbdev(intf); 1311 struct mceusb_dev *ir = usb_get_intfdata(intf); 1312 1313 usb_set_intfdata(intf, NULL); 1314 1315 if (!ir) 1316 return; 1317 1318 ir->usbdev = NULL; 1319 rc_unregister_device(ir->rc); 1320 usb_kill_urb(ir->urb_in); 1321 usb_free_urb(ir->urb_in); 1322 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); 1323 1324 kfree(ir); 1325} 1326 1327static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) 1328{ 1329 struct mceusb_dev *ir = usb_get_intfdata(intf); 1330 dev_info(ir->dev, "suspend\n"); 1331 usb_kill_urb(ir->urb_in); 1332 return 0; 1333} 1334 1335static int mceusb_dev_resume(struct usb_interface *intf) 1336{ 1337 struct mceusb_dev *ir = usb_get_intfdata(intf); 1338 dev_info(ir->dev, "resume\n"); 1339 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) 1340 return -EIO; 1341 return 0; 1342} 1343 1344static struct usb_driver mceusb_dev_driver = { 1345 .name = DRIVER_NAME, 1346 .probe = mceusb_dev_probe, 1347 .disconnect = mceusb_dev_disconnect, 1348 .suspend = mceusb_dev_suspend, 1349 .resume = mceusb_dev_resume, 1350 .reset_resume = mceusb_dev_resume, 1351 .id_table = mceusb_dev_table 1352}; 1353 1354static int __init mceusb_dev_init(void) 1355{ 1356 int ret; 1357 1358 ret = usb_register(&mceusb_dev_driver); 1359 if (ret < 0) 1360 printk(KERN_ERR DRIVER_NAME 1361 ": usb register failed, result = %d\n", ret); 1362 1363 return ret; 1364} 1365 1366static void __exit mceusb_dev_exit(void) 1367{ 1368 usb_deregister(&mceusb_dev_driver); 1369} 1370 1371module_init(mceusb_dev_init); 1372module_exit(mceusb_dev_exit); 1373 1374MODULE_DESCRIPTION(DRIVER_DESC); 1375MODULE_AUTHOR(DRIVER_AUTHOR); 1376MODULE_LICENSE("GPL"); 1377MODULE_DEVICE_TABLE(usb, mceusb_dev_table); 1378 1379module_param(debug, bool, S_IRUGO | S_IWUSR); 1380MODULE_PARM_DESC(debug, "Debug enabled or not"); 1381