mceusb.c revision ecb3b2b35db49778b6d89e3ffd0c400776c20735
1/* 2 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers 3 * 4 * Copyright (c) 2010-2011, Jarod Wilson <jarod@redhat.com> 5 * 6 * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan 7 * Conti, Martin Blatter and Daniel Melander, the latter of which was 8 * in turn also based on the lirc_atiusb driver by Paul Miller. The 9 * two mce drivers were merged into one by Jarod Wilson, with transmit 10 * support for the 1st-gen device added primarily by Patrick Calhoun, 11 * with a bit of tweaks by Jarod. Debugging improvements and proper 12 * support for what appears to be 3rd-gen hardware added by Jarod. 13 * Initial port from lirc driver to ir-core drivery by Jarod, based 14 * partially on a port to an earlier proposed IR infrastructure by 15 * Jon Smirl, which included enhancements and simplifications to the 16 * incoming IR buffer parsing routines. 17 * 18 * Updated in July of 2011 with the aid of Microsoft's official 19 * remote/transceiver requirements and specification document, found at 20 * download.microsoft.com, title 21 * Windows-Media-Center-RC-IR-Collection-Green-Button-Specification-03-08-2011-V2.pdf 22 * 23 * 24 * This program is free software; you can redistribute it and/or modify 25 * it under the terms of the GNU General Public License as published by 26 * the Free Software Foundation; either version 2 of the License, or 27 * (at your option) any later version. 28 * 29 * This program is distributed in the hope that it will be useful, 30 * but WITHOUT ANY WARRANTY; without even the implied warranty of 31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 32 * GNU General Public License for more details. 33 * 34 * You should have received a copy of the GNU General Public License 35 * along with this program; if not, write to the Free Software 36 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 37 * 38 */ 39 40#include <linux/device.h> 41#include <linux/module.h> 42#include <linux/slab.h> 43#include <linux/usb.h> 44#include <linux/usb/input.h> 45#include <linux/pm_wakeup.h> 46#include <media/rc-core.h> 47 48#define DRIVER_VERSION "1.92" 49#define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>" 50#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ 51 "device driver" 52#define DRIVER_NAME "mceusb" 53 54#define USB_BUFLEN 32 /* USB reception buffer length */ 55#define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */ 56#define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */ 57 58/* MCE constants */ 59#define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */ 60#define MCE_TIME_UNIT 50 /* Approx 50us resolution */ 61#define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */ 62#define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */ 63#define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */ 64#define MCE_IRDATA_TRAILER 0x80 /* End of IR data */ 65#define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */ 66#define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */ 67#define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */ 68#define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */ 69#define MCE_PULSE_MASK 0x7f /* Pulse mask */ 70#define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */ 71 72/* 73 * The interface between the host and the IR hardware is command-response 74 * based. All commands and responses have a consistent format, where a lead 75 * byte always identifies the type of data following it. The lead byte has 76 * a port value in the 3 highest bits and a length value in the 5 lowest 77 * bits. 78 * 79 * The length field is overloaded, with a value of 11111 indicating that the 80 * following byte is a command or response code, and the length of the entire 81 * message is determined by the code. If the length field is not 11111, then 82 * it specifies the number of bytes of port data that follow. 83 */ 84#define MCE_CMD 0x1f 85#define MCE_PORT_IR 0x4 /* (0x4 << 5) | MCE_CMD = 0x9f */ 86#define MCE_PORT_SYS 0x7 /* (0x7 << 5) | MCE_CMD = 0xff */ 87#define MCE_PORT_SER 0x6 /* 0xc0 thru 0xdf flush & 0x1f bytes */ 88#define MCE_PORT_MASK 0xe0 /* Mask out command bits */ 89 90/* Command port headers */ 91#define MCE_CMD_PORT_IR 0x9f /* IR-related cmd/rsp */ 92#define MCE_CMD_PORT_SYS 0xff /* System (non-IR) device cmd/rsp */ 93 94/* Commands that set device state (2-4 bytes in length) */ 95#define MCE_CMD_RESET 0xfe /* Reset device, 2 bytes */ 96#define MCE_CMD_RESUME 0xaa /* Resume device after error, 2 bytes */ 97#define MCE_CMD_SETIRCFS 0x06 /* Set tx carrier, 4 bytes */ 98#define MCE_CMD_SETIRTIMEOUT 0x0c /* Set timeout, 4 bytes */ 99#define MCE_CMD_SETIRTXPORTS 0x08 /* Set tx ports, 3 bytes */ 100#define MCE_CMD_SETIRRXPORTEN 0x14 /* Set rx ports, 3 bytes */ 101#define MCE_CMD_FLASHLED 0x23 /* Flash receiver LED, 2 bytes */ 102 103/* Commands that query device state (all 2 bytes, unless noted) */ 104#define MCE_CMD_GETIRCFS 0x07 /* Get carrier */ 105#define MCE_CMD_GETIRTIMEOUT 0x0d /* Get timeout */ 106#define MCE_CMD_GETIRTXPORTS 0x13 /* Get tx ports */ 107#define MCE_CMD_GETIRRXPORTEN 0x15 /* Get rx ports */ 108#define MCE_CMD_GETPORTSTATUS 0x11 /* Get tx port status, 3 bytes */ 109#define MCE_CMD_GETIRNUMPORTS 0x16 /* Get number of ports */ 110#define MCE_CMD_GETWAKESOURCE 0x17 /* Get wake source */ 111#define MCE_CMD_GETEMVER 0x22 /* Get emulator interface version */ 112#define MCE_CMD_GETDEVDETAILS 0x21 /* Get device details (em ver2 only) */ 113#define MCE_CMD_GETWAKESUPPORT 0x20 /* Get wake details (em ver2 only) */ 114#define MCE_CMD_GETWAKEVERSION 0x18 /* Get wake pattern (em ver2 only) */ 115 116/* Misc commands */ 117#define MCE_CMD_NOP 0xff /* No operation */ 118 119/* Responses to commands (non-error cases) */ 120#define MCE_RSP_EQIRCFS 0x06 /* tx carrier, 4 bytes */ 121#define MCE_RSP_EQIRTIMEOUT 0x0c /* rx timeout, 4 bytes */ 122#define MCE_RSP_GETWAKESOURCE 0x17 /* wake source, 3 bytes */ 123#define MCE_RSP_EQIRTXPORTS 0x08 /* tx port mask, 3 bytes */ 124#define MCE_RSP_EQIRRXPORTEN 0x14 /* rx port mask, 3 bytes */ 125#define MCE_RSP_GETPORTSTATUS 0x11 /* tx port status, 7 bytes */ 126#define MCE_RSP_EQIRRXCFCNT 0x15 /* rx carrier count, 4 bytes */ 127#define MCE_RSP_EQIRNUMPORTS 0x16 /* number of ports, 4 bytes */ 128#define MCE_RSP_EQWAKESUPPORT 0x20 /* wake capabilities, 3 bytes */ 129#define MCE_RSP_EQWAKEVERSION 0x18 /* wake pattern details, 6 bytes */ 130#define MCE_RSP_EQDEVDETAILS 0x21 /* device capabilities, 3 bytes */ 131#define MCE_RSP_EQEMVER 0x22 /* emulator interface ver, 3 bytes */ 132#define MCE_RSP_FLASHLED 0x23 /* success flashing LED, 2 bytes */ 133 134/* Responses to error cases, must send MCE_CMD_RESUME to clear them */ 135#define MCE_RSP_CMD_ILLEGAL 0xfe /* illegal command for port, 2 bytes */ 136#define MCE_RSP_TX_TIMEOUT 0x81 /* tx timed out, 2 bytes */ 137 138/* Misc commands/responses not defined in the MCE remote/transceiver spec */ 139#define MCE_CMD_SIG_END 0x01 /* End of signal */ 140#define MCE_CMD_PING 0x03 /* Ping device */ 141#define MCE_CMD_UNKNOWN 0x04 /* Unknown */ 142#define MCE_CMD_UNKNOWN2 0x05 /* Unknown */ 143#define MCE_CMD_UNKNOWN3 0x09 /* Unknown */ 144#define MCE_CMD_UNKNOWN4 0x0a /* Unknown */ 145#define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */ 146#define MCE_CMD_UNKNOWN5 0x0e /* Unknown */ 147#define MCE_CMD_UNKNOWN6 0x0f /* Unknown */ 148#define MCE_CMD_UNKNOWN8 0x19 /* Unknown */ 149#define MCE_CMD_UNKNOWN9 0x1b /* Unknown */ 150#define MCE_CMD_NULL 0x00 /* These show up various places... */ 151 152/* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR, 153 * then we're looking at a raw IR data sample */ 154#define MCE_COMMAND_IRDATA 0x80 155#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */ 156 157/* module parameters */ 158#ifdef CONFIG_USB_DEBUG 159static int debug = 1; 160#else 161static int debug; 162#endif 163 164#define mce_dbg(dev, fmt, ...) \ 165 do { \ 166 if (debug) \ 167 dev_info(dev, fmt, ## __VA_ARGS__); \ 168 } while (0) 169 170/* general constants */ 171#define SEND_FLAG_IN_PROGRESS 1 172#define SEND_FLAG_COMPLETE 2 173#define RECV_FLAG_IN_PROGRESS 3 174#define RECV_FLAG_COMPLETE 4 175 176#define MCEUSB_RX 1 177#define MCEUSB_TX 2 178 179#define VENDOR_PHILIPS 0x0471 180#define VENDOR_SMK 0x0609 181#define VENDOR_TATUNG 0x1460 182#define VENDOR_GATEWAY 0x107b 183#define VENDOR_SHUTTLE 0x1308 184#define VENDOR_SHUTTLE2 0x051c 185#define VENDOR_MITSUMI 0x03ee 186#define VENDOR_TOPSEED 0x1784 187#define VENDOR_RICAVISION 0x179d 188#define VENDOR_ITRON 0x195d 189#define VENDOR_FIC 0x1509 190#define VENDOR_LG 0x043e 191#define VENDOR_MICROSOFT 0x045e 192#define VENDOR_FORMOSA 0x147a 193#define VENDOR_FINTEK 0x1934 194#define VENDOR_PINNACLE 0x2304 195#define VENDOR_ECS 0x1019 196#define VENDOR_WISTRON 0x0fb8 197#define VENDOR_COMPRO 0x185b 198#define VENDOR_NORTHSTAR 0x04eb 199#define VENDOR_REALTEK 0x0bda 200#define VENDOR_TIVO 0x105a 201#define VENDOR_CONEXANT 0x0572 202 203enum mceusb_model_type { 204 MCE_GEN2 = 0, /* Most boards */ 205 MCE_GEN1, 206 MCE_GEN3, 207 MCE_GEN2_TX_INV, 208 POLARIS_EVK, 209 CX_HYBRID_TV, 210 MULTIFUNCTION, 211 TIVO_KIT, 212 MCE_GEN2_NO_TX, 213}; 214 215struct mceusb_model { 216 u32 mce_gen1:1; 217 u32 mce_gen2:1; 218 u32 mce_gen3:1; 219 u32 tx_mask_normal:1; 220 u32 no_tx:1; 221 222 int ir_intfnum; 223 224 const char *rc_map; /* Allow specify a per-board map */ 225 const char *name; /* per-board name */ 226}; 227 228static const struct mceusb_model mceusb_model[] = { 229 [MCE_GEN1] = { 230 .mce_gen1 = 1, 231 .tx_mask_normal = 1, 232 }, 233 [MCE_GEN2] = { 234 .mce_gen2 = 1, 235 }, 236 [MCE_GEN2_NO_TX] = { 237 .mce_gen2 = 1, 238 .no_tx = 1, 239 }, 240 [MCE_GEN2_TX_INV] = { 241 .mce_gen2 = 1, 242 .tx_mask_normal = 1, 243 }, 244 [MCE_GEN3] = { 245 .mce_gen3 = 1, 246 .tx_mask_normal = 1, 247 }, 248 [POLARIS_EVK] = { 249 /* 250 * In fact, the EVK is shipped without 251 * remotes, but we should have something handy, 252 * to allow testing it 253 */ 254 .rc_map = RC_MAP_HAUPPAUGE, 255 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 256 }, 257 [CX_HYBRID_TV] = { 258 .no_tx = 1, /* tx isn't wired up at all */ 259 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 260 }, 261 [MULTIFUNCTION] = { 262 .mce_gen2 = 1, 263 .ir_intfnum = 2, 264 }, 265 [TIVO_KIT] = { 266 .mce_gen2 = 1, 267 .rc_map = RC_MAP_TIVO, 268 }, 269}; 270 271static struct usb_device_id mceusb_dev_table[] = { 272 /* Original Microsoft MCE IR Transceiver (often HP-branded) */ 273 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d), 274 .driver_info = MCE_GEN1 }, 275 /* Philips Infrared Transceiver - Sahara branded */ 276 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, 277 /* Philips Infrared Transceiver - HP branded */ 278 { USB_DEVICE(VENDOR_PHILIPS, 0x060c), 279 .driver_info = MCE_GEN2_TX_INV }, 280 /* Philips SRM5100 */ 281 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, 282 /* Philips Infrared Transceiver - Omaura */ 283 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, 284 /* Philips Infrared Transceiver - Spinel plus */ 285 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, 286 /* Philips eHome Infrared Transceiver */ 287 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, 288 /* Philips/Spinel plus IR transceiver for ASUS */ 289 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, 290 /* Philips/Spinel plus IR transceiver for ASUS */ 291 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, 292 /* Philips IR transceiver (Dell branded) */ 293 { USB_DEVICE(VENDOR_PHILIPS, 0x2093) }, 294 /* Realtek MCE IR Receiver and card reader */ 295 { USB_DEVICE(VENDOR_REALTEK, 0x0161), 296 .driver_info = MULTIFUNCTION }, 297 /* SMK/Toshiba G83C0004D410 */ 298 { USB_DEVICE(VENDOR_SMK, 0x031d), 299 .driver_info = MCE_GEN2_TX_INV }, 300 /* SMK eHome Infrared Transceiver (Sony VAIO) */ 301 { USB_DEVICE(VENDOR_SMK, 0x0322), 302 .driver_info = MCE_GEN2_TX_INV }, 303 /* bundled with Hauppauge PVR-150 */ 304 { USB_DEVICE(VENDOR_SMK, 0x0334), 305 .driver_info = MCE_GEN2_TX_INV }, 306 /* SMK eHome Infrared Transceiver */ 307 { USB_DEVICE(VENDOR_SMK, 0x0338) }, 308 /* SMK/I-O Data GV-MC7/RCKIT Receiver */ 309 { USB_DEVICE(VENDOR_SMK, 0x0353), 310 .driver_info = MCE_GEN2_NO_TX }, 311 /* Tatung eHome Infrared Transceiver */ 312 { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, 313 /* Shuttle eHome Infrared Transceiver */ 314 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, 315 /* Shuttle eHome Infrared Transceiver */ 316 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, 317 /* Gateway eHome Infrared Transceiver */ 318 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, 319 /* Mitsumi */ 320 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, 321 /* Topseed eHome Infrared Transceiver */ 322 { USB_DEVICE(VENDOR_TOPSEED, 0x0001), 323 .driver_info = MCE_GEN2_TX_INV }, 324 /* Topseed HP eHome Infrared Transceiver */ 325 { USB_DEVICE(VENDOR_TOPSEED, 0x0006), 326 .driver_info = MCE_GEN2_TX_INV }, 327 /* Topseed eHome Infrared Transceiver */ 328 { USB_DEVICE(VENDOR_TOPSEED, 0x0007), 329 .driver_info = MCE_GEN2_TX_INV }, 330 /* Topseed eHome Infrared Transceiver */ 331 { USB_DEVICE(VENDOR_TOPSEED, 0x0008), 332 .driver_info = MCE_GEN3 }, 333 /* Topseed eHome Infrared Transceiver */ 334 { USB_DEVICE(VENDOR_TOPSEED, 0x000a), 335 .driver_info = MCE_GEN2_TX_INV }, 336 /* Topseed eHome Infrared Transceiver */ 337 { USB_DEVICE(VENDOR_TOPSEED, 0x0011), 338 .driver_info = MCE_GEN3 }, 339 /* Ricavision internal Infrared Transceiver */ 340 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, 341 /* Itron ione Libra Q-11 */ 342 { USB_DEVICE(VENDOR_ITRON, 0x7002) }, 343 /* FIC eHome Infrared Transceiver */ 344 { USB_DEVICE(VENDOR_FIC, 0x9242) }, 345 /* LG eHome Infrared Transceiver */ 346 { USB_DEVICE(VENDOR_LG, 0x9803) }, 347 /* Microsoft MCE Infrared Transceiver */ 348 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, 349 /* Formosa eHome Infrared Transceiver */ 350 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, 351 /* Formosa21 / eHome Infrared Receiver */ 352 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, 353 /* Formosa aim / Trust MCE Infrared Receiver */ 354 { USB_DEVICE(VENDOR_FORMOSA, 0xe017), 355 .driver_info = MCE_GEN2_NO_TX }, 356 /* Formosa Industrial Computing / Beanbag Emulation Device */ 357 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, 358 /* Formosa21 / eHome Infrared Receiver */ 359 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, 360 /* Formosa Industrial Computing AIM IR605/A */ 361 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, 362 /* Formosa Industrial Computing */ 363 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, 364 /* Fintek eHome Infrared Transceiver (HP branded) */ 365 { USB_DEVICE(VENDOR_FINTEK, 0x5168) }, 366 /* Fintek eHome Infrared Transceiver */ 367 { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, 368 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ 369 { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, 370 /* Pinnacle Remote Kit */ 371 { USB_DEVICE(VENDOR_PINNACLE, 0x0225), 372 .driver_info = MCE_GEN3 }, 373 /* Elitegroup Computer Systems IR */ 374 { USB_DEVICE(VENDOR_ECS, 0x0f38) }, 375 /* Wistron Corp. eHome Infrared Receiver */ 376 { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, 377 /* Compro K100 */ 378 { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, 379 /* Compro K100 v2 */ 380 { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, 381 /* Northstar Systems, Inc. eHome Infrared Transceiver */ 382 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, 383 /* TiVo PC IR Receiver */ 384 { USB_DEVICE(VENDOR_TIVO, 0x2000), 385 .driver_info = TIVO_KIT }, 386 /* Conexant Hybrid TV "Shelby" Polaris SDK */ 387 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1), 388 .driver_info = POLARIS_EVK }, 389 /* Conexant Hybrid TV RDU253S Polaris */ 390 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5), 391 .driver_info = CX_HYBRID_TV }, 392 /* Terminating entry */ 393 { } 394}; 395 396/* data structure for each usb transceiver */ 397struct mceusb_dev { 398 /* ir-core bits */ 399 struct rc_dev *rc; 400 401 /* optional features we can enable */ 402 bool carrier_report_enabled; 403 bool learning_enabled; 404 405 /* core device bits */ 406 struct device *dev; 407 408 /* usb */ 409 struct usb_device *usbdev; 410 struct urb *urb_in; 411 struct usb_endpoint_descriptor *usb_ep_in; 412 struct usb_endpoint_descriptor *usb_ep_out; 413 414 /* buffers and dma */ 415 unsigned char *buf_in; 416 unsigned int len_in; 417 dma_addr_t dma_in; 418 dma_addr_t dma_out; 419 420 enum { 421 CMD_HEADER = 0, 422 SUBCMD, 423 CMD_DATA, 424 PARSE_IRDATA, 425 } parser_state; 426 427 u8 cmd, rem; /* Remaining IR data bytes in packet */ 428 429 struct { 430 u32 connected:1; 431 u32 tx_mask_normal:1; 432 u32 microsoft_gen1:1; 433 u32 no_tx:1; 434 } flags; 435 436 /* transmit support */ 437 int send_flags; 438 u32 carrier; 439 unsigned char tx_mask; 440 441 char name[128]; 442 char phys[64]; 443 enum mceusb_model_type model; 444 445 bool need_reset; /* flag to issue a device resume cmd */ 446 u8 emver; /* emulator interface version */ 447 u8 num_txports; /* number of transmit ports */ 448 u8 num_rxports; /* number of receive sensors */ 449 u8 txports_cabled; /* bitmask of transmitters with cable */ 450 u8 rxports_active; /* bitmask of active receive sensors */ 451}; 452 453/* MCE Device Command Strings, generally a port and command pair */ 454static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS, 455 MCE_CMD_RESUME}; 456static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION}; 457static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER}; 458static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION}; 459static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED}; 460static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2}; 461static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS}; 462static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT}; 463static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS}; 464static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS}; 465static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN}; 466/* sub in desired values in lower byte or bytes for full command */ 467/* FIXME: make use of these for transmit. 468static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, 469 MCE_CMD_SETIRCFS, 0x00, 0x00}; 470static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00}; 471static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, 472 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00}; 473static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR, 474 MCE_RSP_EQIRRXPORTEN, 0x00}; 475*/ 476 477static int mceusb_cmdsize(u8 cmd, u8 subcmd) 478{ 479 int datasize = 0; 480 481 switch (cmd) { 482 case MCE_CMD_NULL: 483 if (subcmd == MCE_CMD_PORT_SYS) 484 datasize = 1; 485 break; 486 case MCE_CMD_PORT_SYS: 487 switch (subcmd) { 488 case MCE_RSP_EQWAKEVERSION: 489 datasize = 4; 490 break; 491 case MCE_CMD_G_REVISION: 492 datasize = 2; 493 break; 494 case MCE_RSP_EQWAKESUPPORT: 495 datasize = 1; 496 break; 497 } 498 case MCE_CMD_PORT_IR: 499 switch (subcmd) { 500 case MCE_CMD_UNKNOWN: 501 case MCE_RSP_EQIRCFS: 502 case MCE_RSP_EQIRTIMEOUT: 503 case MCE_RSP_EQIRRXCFCNT: 504 datasize = 2; 505 break; 506 case MCE_CMD_SIG_END: 507 case MCE_RSP_EQIRTXPORTS: 508 case MCE_RSP_EQIRRXPORTEN: 509 datasize = 1; 510 break; 511 } 512 } 513 return datasize; 514} 515 516static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf, 517 int offset, int len, bool out) 518{ 519 char codes[USB_BUFLEN * 3 + 1]; 520 char inout[9]; 521 u8 cmd, subcmd, data1, data2, data3, data4, data5; 522 struct device *dev = ir->dev; 523 int i, start, skip = 0; 524 u32 carrier, period; 525 526 if (!debug) 527 return; 528 529 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 530 if (ir->flags.microsoft_gen1 && !out && !offset) 531 skip = 2; 532 533 if (len <= skip) 534 return; 535 536 for (i = 0; i < len && i < USB_BUFLEN; i++) 537 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff); 538 539 dev_info(dev, "%sx data: %s(length=%d)\n", 540 (out ? "t" : "r"), codes, len); 541 542 if (out) 543 strcpy(inout, "Request\0"); 544 else 545 strcpy(inout, "Got\0"); 546 547 start = offset + skip; 548 cmd = buf[start] & 0xff; 549 subcmd = buf[start + 1] & 0xff; 550 data1 = buf[start + 2] & 0xff; 551 data2 = buf[start + 3] & 0xff; 552 data3 = buf[start + 4] & 0xff; 553 data4 = buf[start + 5] & 0xff; 554 data5 = buf[start + 6] & 0xff; 555 556 switch (cmd) { 557 case MCE_CMD_NULL: 558 if (subcmd == MCE_CMD_NULL) 559 break; 560 if ((subcmd == MCE_CMD_PORT_SYS) && 561 (data1 == MCE_CMD_RESUME)) 562 dev_info(dev, "Device resume requested\n"); 563 else 564 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 565 cmd, subcmd); 566 break; 567 case MCE_CMD_PORT_SYS: 568 switch (subcmd) { 569 case MCE_RSP_EQEMVER: 570 if (!out) 571 dev_info(dev, "Emulator interface version %x\n", 572 data1); 573 break; 574 case MCE_CMD_G_REVISION: 575 if (len == 2) 576 dev_info(dev, "Get hw/sw rev?\n"); 577 else 578 dev_info(dev, "hw/sw rev 0x%02x 0x%02x " 579 "0x%02x 0x%02x\n", data1, data2, 580 buf[start + 4], buf[start + 5]); 581 break; 582 case MCE_CMD_RESUME: 583 dev_info(dev, "Device resume requested\n"); 584 break; 585 case MCE_RSP_CMD_ILLEGAL: 586 dev_info(dev, "Illegal PORT_SYS command\n"); 587 break; 588 case MCE_RSP_EQWAKEVERSION: 589 if (!out) 590 dev_info(dev, "Wake version, proto: 0x%02x, " 591 "payload: 0x%02x, address: 0x%02x, " 592 "version: 0x%02x\n", 593 data1, data2, data3, data4); 594 break; 595 case MCE_RSP_GETPORTSTATUS: 596 if (!out) 597 /* We use data1 + 1 here, to match hw labels */ 598 dev_info(dev, "TX port %d: blaster is%s connected\n", 599 data1 + 1, data4 ? " not" : ""); 600 break; 601 case MCE_CMD_FLASHLED: 602 dev_info(dev, "Attempting to flash LED\n"); 603 break; 604 default: 605 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 606 cmd, subcmd); 607 break; 608 } 609 break; 610 case MCE_CMD_PORT_IR: 611 switch (subcmd) { 612 case MCE_CMD_SIG_END: 613 dev_info(dev, "End of signal\n"); 614 break; 615 case MCE_CMD_PING: 616 dev_info(dev, "Ping\n"); 617 break; 618 case MCE_CMD_UNKNOWN: 619 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n", 620 data1, data2); 621 break; 622 case MCE_RSP_EQIRCFS: 623 period = DIV_ROUND_CLOSEST( 624 (1 << data1 * 2) * (data2 + 1), 10); 625 if (!period) 626 break; 627 carrier = (1000 * 1000) / period; 628 dev_info(dev, "%s carrier of %u Hz (period %uus)\n", 629 inout, carrier, period); 630 break; 631 case MCE_CMD_GETIRCFS: 632 dev_info(dev, "Get carrier mode and freq\n"); 633 break; 634 case MCE_RSP_EQIRTXPORTS: 635 dev_info(dev, "%s transmit blaster mask of 0x%02x\n", 636 inout, data1); 637 break; 638 case MCE_RSP_EQIRTIMEOUT: 639 /* value is in units of 50us, so x*50/1000 ms */ 640 period = ((data1 << 8) | data2) * MCE_TIME_UNIT / 1000; 641 dev_info(dev, "%s receive timeout of %d ms\n", 642 inout, period); 643 break; 644 case MCE_CMD_GETIRTIMEOUT: 645 dev_info(dev, "Get receive timeout\n"); 646 break; 647 case MCE_CMD_GETIRTXPORTS: 648 dev_info(dev, "Get transmit blaster mask\n"); 649 break; 650 case MCE_RSP_EQIRRXPORTEN: 651 dev_info(dev, "%s %s-range receive sensor in use\n", 652 inout, data1 == 0x02 ? "short" : "long"); 653 break; 654 case MCE_CMD_GETIRRXPORTEN: 655 /* aka MCE_RSP_EQIRRXCFCNT */ 656 if (out) 657 dev_info(dev, "Get receive sensor\n"); 658 else if (ir->learning_enabled) 659 dev_info(dev, "RX pulse count: %d\n", 660 ((data1 << 8) | data2)); 661 break; 662 case MCE_RSP_EQIRNUMPORTS: 663 if (out) 664 break; 665 dev_info(dev, "Num TX ports: %x, num RX ports: %x\n", 666 data1, data2); 667 break; 668 case MCE_RSP_CMD_ILLEGAL: 669 dev_info(dev, "Illegal PORT_IR command\n"); 670 break; 671 default: 672 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 673 cmd, subcmd); 674 break; 675 } 676 break; 677 default: 678 break; 679 } 680 681 if (cmd == MCE_IRDATA_TRAILER) 682 dev_info(dev, "End of raw IR data\n"); 683 else if ((cmd != MCE_CMD_PORT_IR) && 684 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA)) 685 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem); 686} 687 688static void mce_async_callback(struct urb *urb, struct pt_regs *regs) 689{ 690 struct mceusb_dev *ir; 691 int len; 692 693 if (!urb) 694 return; 695 696 ir = urb->context; 697 if (ir) { 698 len = urb->actual_length; 699 700 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true); 701 } 702 703 /* the transfer buffer and urb were allocated in mce_request_packet */ 704 kfree(urb->transfer_buffer); 705 usb_free_urb(urb); 706} 707 708/* request incoming or send outgoing usb packet - used to initialize remote */ 709static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data, 710 int size, int urb_type) 711{ 712 int res, pipe; 713 struct urb *async_urb; 714 struct device *dev = ir->dev; 715 unsigned char *async_buf; 716 717 if (urb_type == MCEUSB_TX) { 718 async_urb = usb_alloc_urb(0, GFP_KERNEL); 719 if (unlikely(!async_urb)) { 720 dev_err(dev, "Error, couldn't allocate urb!\n"); 721 return; 722 } 723 724 async_buf = kzalloc(size, GFP_KERNEL); 725 if (!async_buf) { 726 dev_err(dev, "Error, couldn't allocate buf!\n"); 727 usb_free_urb(async_urb); 728 return; 729 } 730 731 /* outbound data */ 732 pipe = usb_sndintpipe(ir->usbdev, 733 ir->usb_ep_out->bEndpointAddress); 734 usb_fill_int_urb(async_urb, ir->usbdev, pipe, 735 async_buf, size, (usb_complete_t)mce_async_callback, 736 ir, ir->usb_ep_out->bInterval); 737 memcpy(async_buf, data, size); 738 739 } else if (urb_type == MCEUSB_RX) { 740 /* standard request */ 741 async_urb = ir->urb_in; 742 ir->send_flags = RECV_FLAG_IN_PROGRESS; 743 744 } else { 745 dev_err(dev, "Error! Unknown urb type %d\n", urb_type); 746 return; 747 } 748 749 mce_dbg(dev, "receive request called (size=%#x)\n", size); 750 751 async_urb->transfer_buffer_length = size; 752 async_urb->dev = ir->usbdev; 753 754 res = usb_submit_urb(async_urb, GFP_ATOMIC); 755 if (res) { 756 mce_dbg(dev, "receive request FAILED! (res=%d)\n", res); 757 return; 758 } 759 mce_dbg(dev, "receive request complete (res=%d)\n", res); 760} 761 762static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) 763{ 764 int rsize = sizeof(DEVICE_RESUME); 765 766 if (ir->need_reset) { 767 ir->need_reset = false; 768 mce_request_packet(ir, DEVICE_RESUME, rsize, MCEUSB_TX); 769 msleep(10); 770 } 771 772 mce_request_packet(ir, data, size, MCEUSB_TX); 773 msleep(10); 774} 775 776static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size) 777{ 778 mce_request_packet(ir, NULL, size, MCEUSB_RX); 779} 780 781/* Send data out the IR blaster port(s) */ 782static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count) 783{ 784 struct mceusb_dev *ir = dev->priv; 785 int i, ret = 0; 786 int cmdcount = 0; 787 unsigned char *cmdbuf; /* MCE command buffer */ 788 long signal_duration = 0; /* Singnal length in us */ 789 struct timeval start_time, end_time; 790 791 do_gettimeofday(&start_time); 792 793 cmdbuf = kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE, GFP_KERNEL); 794 if (!cmdbuf) 795 return -ENOMEM; 796 797 /* MCE tx init header */ 798 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR; 799 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS; 800 cmdbuf[cmdcount++] = ir->tx_mask; 801 802 /* Generate mce packet data */ 803 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { 804 signal_duration += txbuf[i]; 805 txbuf[i] = txbuf[i] / MCE_TIME_UNIT; 806 807 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ 808 809 /* Insert mce packet header every 4th entry */ 810 if ((cmdcount < MCE_CMDBUF_SIZE) && 811 (cmdcount - MCE_TX_HEADER_LENGTH) % 812 MCE_CODE_LENGTH == 0) 813 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; 814 815 /* Insert mce packet data */ 816 if (cmdcount < MCE_CMDBUF_SIZE) 817 cmdbuf[cmdcount++] = 818 (txbuf[i] < MCE_PULSE_BIT ? 819 txbuf[i] : MCE_MAX_PULSE_LENGTH) | 820 (i & 1 ? 0x00 : MCE_PULSE_BIT); 821 else { 822 ret = -EINVAL; 823 goto out; 824 } 825 826 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && 827 (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); 828 } 829 830 /* Fix packet length in last header */ 831 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] = 832 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) % 833 MCE_CODE_LENGTH - 1; 834 835 /* Check if we have room for the empty packet at the end */ 836 if (cmdcount >= MCE_CMDBUF_SIZE) { 837 ret = -EINVAL; 838 goto out; 839 } 840 841 /* All mce commands end with an empty packet (0x80) */ 842 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; 843 844 /* Transmit the command to the mce device */ 845 mce_async_out(ir, cmdbuf, cmdcount); 846 847 /* 848 * The lircd gap calculation expects the write function to 849 * wait the time it takes for the ircommand to be sent before 850 * it returns. 851 */ 852 do_gettimeofday(&end_time); 853 signal_duration -= (end_time.tv_usec - start_time.tv_usec) + 854 (end_time.tv_sec - start_time.tv_sec) * 1000000; 855 856 /* delay with the closest number of ticks */ 857 set_current_state(TASK_INTERRUPTIBLE); 858 schedule_timeout(usecs_to_jiffies(signal_duration)); 859 860out: 861 kfree(cmdbuf); 862 return ret ? ret : count; 863} 864 865/* Sets active IR outputs -- mce devices typically have two */ 866static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) 867{ 868 struct mceusb_dev *ir = dev->priv; 869 870 if (ir->flags.tx_mask_normal) 871 ir->tx_mask = mask; 872 else 873 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? 874 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; 875 876 return 0; 877} 878 879/* Sets the send carrier frequency and mode */ 880static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier) 881{ 882 struct mceusb_dev *ir = dev->priv; 883 int clk = 10000000; 884 int prescaler = 0, divisor = 0; 885 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR, 886 MCE_CMD_SETIRCFS, 0x00, 0x00 }; 887 888 /* Carrier has changed */ 889 if (ir->carrier != carrier) { 890 891 if (carrier == 0) { 892 ir->carrier = carrier; 893 cmdbuf[2] = MCE_CMD_SIG_END; 894 cmdbuf[3] = MCE_IRDATA_TRAILER; 895 mce_dbg(ir->dev, "%s: disabling carrier " 896 "modulation\n", __func__); 897 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 898 return carrier; 899 } 900 901 for (prescaler = 0; prescaler < 4; ++prescaler) { 902 divisor = (clk >> (2 * prescaler)) / carrier; 903 if (divisor <= 0xff) { 904 ir->carrier = carrier; 905 cmdbuf[2] = prescaler; 906 cmdbuf[3] = divisor; 907 mce_dbg(ir->dev, "%s: requesting %u HZ " 908 "carrier\n", __func__, carrier); 909 910 /* Transmit new carrier to mce device */ 911 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 912 return carrier; 913 } 914 } 915 916 return -EINVAL; 917 918 } 919 920 return carrier; 921} 922 923/* 924 * We don't do anything but print debug spew for many of the command bits 925 * we receive from the hardware, but some of them are useful information 926 * we want to store so that we can use them. 927 */ 928static void mceusb_handle_command(struct mceusb_dev *ir, int index) 929{ 930 u8 hi = ir->buf_in[index + 1] & 0xff; 931 u8 lo = ir->buf_in[index + 2] & 0xff; 932 933 switch (ir->buf_in[index]) { 934 /* the one and only 5-byte return value command */ 935 case MCE_RSP_GETPORTSTATUS: 936 if ((ir->buf_in[index + 4] & 0xff) == 0x00) 937 ir->txports_cabled |= 1 << hi; 938 break; 939 940 /* 2-byte return value commands */ 941 case MCE_RSP_EQIRTIMEOUT: 942 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT); 943 break; 944 case MCE_RSP_EQIRNUMPORTS: 945 ir->num_txports = hi; 946 ir->num_rxports = lo; 947 break; 948 949 /* 1-byte return value commands */ 950 case MCE_RSP_EQEMVER: 951 ir->emver = hi; 952 break; 953 case MCE_RSP_EQIRTXPORTS: 954 ir->tx_mask = hi; 955 break; 956 case MCE_RSP_EQIRRXPORTEN: 957 ir->learning_enabled = ((hi & 0x02) == 0x02); 958 ir->rxports_active = hi; 959 break; 960 case MCE_RSP_CMD_ILLEGAL: 961 ir->need_reset = true; 962 break; 963 default: 964 break; 965 } 966} 967 968static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) 969{ 970 DEFINE_IR_RAW_EVENT(rawir); 971 int i = 0; 972 973 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 974 if (ir->flags.microsoft_gen1) 975 i = 2; 976 977 /* if there's no data, just return now */ 978 if (buf_len <= i) 979 return; 980 981 for (; i < buf_len; i++) { 982 switch (ir->parser_state) { 983 case SUBCMD: 984 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]); 985 mceusb_dev_printdata(ir, ir->buf_in, i - 1, 986 ir->rem + 2, false); 987 mceusb_handle_command(ir, i); 988 ir->parser_state = CMD_DATA; 989 break; 990 case PARSE_IRDATA: 991 ir->rem--; 992 init_ir_raw_event(&rawir); 993 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); 994 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK) 995 * US_TO_NS(MCE_TIME_UNIT); 996 997 mce_dbg(ir->dev, "Storing %s with duration %d\n", 998 rawir.pulse ? "pulse" : "space", 999 rawir.duration); 1000 1001 ir_raw_event_store_with_filter(ir->rc, &rawir); 1002 break; 1003 case CMD_DATA: 1004 ir->rem--; 1005 break; 1006 case CMD_HEADER: 1007 /* decode mce packets of the form (84),AA,BB,CC,DD */ 1008 /* IR data packets can span USB messages - rem */ 1009 ir->cmd = ir->buf_in[i]; 1010 if ((ir->cmd == MCE_CMD_PORT_IR) || 1011 ((ir->cmd & MCE_PORT_MASK) != 1012 MCE_COMMAND_IRDATA)) { 1013 ir->parser_state = SUBCMD; 1014 continue; 1015 } 1016 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); 1017 mceusb_dev_printdata(ir, ir->buf_in, 1018 i, ir->rem + 1, false); 1019 if (ir->rem) 1020 ir->parser_state = PARSE_IRDATA; 1021 else 1022 ir_raw_event_reset(ir->rc); 1023 break; 1024 } 1025 1026 if (ir->parser_state != CMD_HEADER && !ir->rem) 1027 ir->parser_state = CMD_HEADER; 1028 } 1029 mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n"); 1030 ir_raw_event_handle(ir->rc); 1031} 1032 1033static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs) 1034{ 1035 struct mceusb_dev *ir; 1036 int buf_len; 1037 1038 if (!urb) 1039 return; 1040 1041 ir = urb->context; 1042 if (!ir) { 1043 usb_unlink_urb(urb); 1044 return; 1045 } 1046 1047 buf_len = urb->actual_length; 1048 1049 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) { 1050 ir->send_flags = SEND_FLAG_COMPLETE; 1051 mce_dbg(ir->dev, "setup answer received %d bytes\n", 1052 buf_len); 1053 } 1054 1055 switch (urb->status) { 1056 /* success */ 1057 case 0: 1058 mceusb_process_ir_data(ir, buf_len); 1059 break; 1060 1061 case -ECONNRESET: 1062 case -ENOENT: 1063 case -ESHUTDOWN: 1064 usb_unlink_urb(urb); 1065 return; 1066 1067 case -EPIPE: 1068 default: 1069 mce_dbg(ir->dev, "Error: urb status = %d\n", urb->status); 1070 break; 1071 } 1072 1073 usb_submit_urb(urb, GFP_ATOMIC); 1074} 1075 1076static void mceusb_get_emulator_version(struct mceusb_dev *ir) 1077{ 1078 /* If we get no reply or an illegal command reply, its ver 1, says MS */ 1079 ir->emver = 1; 1080 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER)); 1081} 1082 1083static void mceusb_gen1_init(struct mceusb_dev *ir) 1084{ 1085 int ret; 1086 struct device *dev = ir->dev; 1087 char *data; 1088 1089 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); 1090 if (!data) { 1091 dev_err(dev, "%s: memory allocation failed!\n", __func__); 1092 return; 1093 } 1094 1095 /* 1096 * This is a strange one. Windows issues a set address to the device 1097 * on the receive control pipe and expect a certain value pair back 1098 */ 1099 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), 1100 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, 1101 data, USB_CTRL_MSG_SZ, HZ * 3); 1102 mce_dbg(dev, "%s - ret = %d\n", __func__, ret); 1103 mce_dbg(dev, "%s - data[0] = %d, data[1] = %d\n", 1104 __func__, data[0], data[1]); 1105 1106 /* set feature: bit rate 38400 bps */ 1107 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1108 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, 1109 0xc04e, 0x0000, NULL, 0, HZ * 3); 1110 1111 mce_dbg(dev, "%s - ret = %d\n", __func__, ret); 1112 1113 /* bRequest 4: set char length to 8 bits */ 1114 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1115 4, USB_TYPE_VENDOR, 1116 0x0808, 0x0000, NULL, 0, HZ * 3); 1117 mce_dbg(dev, "%s - retB = %d\n", __func__, ret); 1118 1119 /* bRequest 2: set handshaking to use DTR/DSR */ 1120 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1121 2, USB_TYPE_VENDOR, 1122 0x0000, 0x0100, NULL, 0, HZ * 3); 1123 mce_dbg(dev, "%s - retC = %d\n", __func__, ret); 1124 1125 /* device resume */ 1126 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1127 1128 /* get hw/sw revision? */ 1129 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1130 1131 kfree(data); 1132}; 1133 1134static void mceusb_gen2_init(struct mceusb_dev *ir) 1135{ 1136 /* device resume */ 1137 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1138 1139 /* get hw/sw revision? */ 1140 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1141 1142 /* get wake version (protocol, key, address) */ 1143 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION)); 1144 1145 /* unknown what this one actually returns... */ 1146 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); 1147} 1148 1149static void mceusb_get_parameters(struct mceusb_dev *ir) 1150{ 1151 int i; 1152 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS, 1153 MCE_CMD_GETPORTSTATUS, 0x00 }; 1154 1155 /* defaults, if the hardware doesn't support querying */ 1156 ir->num_txports = 2; 1157 ir->num_rxports = 2; 1158 1159 /* get number of tx and rx ports */ 1160 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS)); 1161 1162 /* get the carrier and frequency */ 1163 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); 1164 1165 if (ir->num_txports && !ir->flags.no_tx) 1166 /* get the transmitter bitmask */ 1167 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); 1168 1169 /* get receiver timeout value */ 1170 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1171 1172 /* get receiver sensor setting */ 1173 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); 1174 1175 for (i = 0; i < ir->num_txports; i++) { 1176 cmdbuf[2] = i; 1177 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1178 } 1179} 1180 1181static void mceusb_flash_led(struct mceusb_dev *ir) 1182{ 1183 if (ir->emver < 2) 1184 return; 1185 1186 mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED)); 1187} 1188 1189static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) 1190{ 1191 struct device *dev = ir->dev; 1192 struct rc_dev *rc; 1193 int ret; 1194 1195 rc = rc_allocate_device(); 1196 if (!rc) { 1197 dev_err(dev, "remote dev allocation failed\n"); 1198 goto out; 1199 } 1200 1201 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", 1202 mceusb_model[ir->model].name ? 1203 mceusb_model[ir->model].name : 1204 "Media Center Ed. eHome Infrared Remote Transceiver", 1205 le16_to_cpu(ir->usbdev->descriptor.idVendor), 1206 le16_to_cpu(ir->usbdev->descriptor.idProduct)); 1207 1208 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); 1209 1210 rc->input_name = ir->name; 1211 rc->input_phys = ir->phys; 1212 usb_to_input_id(ir->usbdev, &rc->input_id); 1213 rc->dev.parent = dev; 1214 rc->priv = ir; 1215 rc->driver_type = RC_DRIVER_IR_RAW; 1216 rc->allowed_protos = RC_TYPE_ALL; 1217 rc->timeout = MS_TO_NS(100); 1218 if (!ir->flags.no_tx) { 1219 rc->s_tx_mask = mceusb_set_tx_mask; 1220 rc->s_tx_carrier = mceusb_set_tx_carrier; 1221 rc->tx_ir = mceusb_tx_ir; 1222 } 1223 rc->driver_name = DRIVER_NAME; 1224 rc->map_name = mceusb_model[ir->model].rc_map ? 1225 mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE; 1226 1227 ret = rc_register_device(rc); 1228 if (ret < 0) { 1229 dev_err(dev, "remote dev registration failed\n"); 1230 goto out; 1231 } 1232 1233 return rc; 1234 1235out: 1236 rc_free_device(rc); 1237 return NULL; 1238} 1239 1240static int __devinit mceusb_dev_probe(struct usb_interface *intf, 1241 const struct usb_device_id *id) 1242{ 1243 struct usb_device *dev = interface_to_usbdev(intf); 1244 struct usb_host_interface *idesc; 1245 struct usb_endpoint_descriptor *ep = NULL; 1246 struct usb_endpoint_descriptor *ep_in = NULL; 1247 struct usb_endpoint_descriptor *ep_out = NULL; 1248 struct mceusb_dev *ir = NULL; 1249 int pipe, maxp, i; 1250 char buf[63], name[128] = ""; 1251 enum mceusb_model_type model = id->driver_info; 1252 bool is_gen3; 1253 bool is_microsoft_gen1; 1254 bool tx_mask_normal; 1255 int ir_intfnum; 1256 1257 mce_dbg(&intf->dev, "%s called\n", __func__); 1258 1259 idesc = intf->cur_altsetting; 1260 1261 is_gen3 = mceusb_model[model].mce_gen3; 1262 is_microsoft_gen1 = mceusb_model[model].mce_gen1; 1263 tx_mask_normal = mceusb_model[model].tx_mask_normal; 1264 ir_intfnum = mceusb_model[model].ir_intfnum; 1265 1266 /* There are multi-function devices with non-IR interfaces */ 1267 if (idesc->desc.bInterfaceNumber != ir_intfnum) 1268 return -ENODEV; 1269 1270 /* step through the endpoints to find first bulk in and out endpoint */ 1271 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { 1272 ep = &idesc->endpoint[i].desc; 1273 1274 if ((ep_in == NULL) 1275 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1276 == USB_DIR_IN) 1277 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1278 == USB_ENDPOINT_XFER_BULK) 1279 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1280 == USB_ENDPOINT_XFER_INT))) { 1281 1282 ep_in = ep; 1283 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT; 1284 ep_in->bInterval = 1; 1285 mce_dbg(&intf->dev, "acceptable inbound endpoint " 1286 "found\n"); 1287 } 1288 1289 if ((ep_out == NULL) 1290 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1291 == USB_DIR_OUT) 1292 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1293 == USB_ENDPOINT_XFER_BULK) 1294 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1295 == USB_ENDPOINT_XFER_INT))) { 1296 1297 ep_out = ep; 1298 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT; 1299 ep_out->bInterval = 1; 1300 mce_dbg(&intf->dev, "acceptable outbound endpoint " 1301 "found\n"); 1302 } 1303 } 1304 if (ep_in == NULL) { 1305 mce_dbg(&intf->dev, "inbound and/or endpoint not found\n"); 1306 return -ENODEV; 1307 } 1308 1309 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); 1310 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 1311 1312 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); 1313 if (!ir) 1314 goto mem_alloc_fail; 1315 1316 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); 1317 if (!ir->buf_in) 1318 goto buf_in_alloc_fail; 1319 1320 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); 1321 if (!ir->urb_in) 1322 goto urb_in_alloc_fail; 1323 1324 ir->usbdev = dev; 1325 ir->dev = &intf->dev; 1326 ir->len_in = maxp; 1327 ir->flags.microsoft_gen1 = is_microsoft_gen1; 1328 ir->flags.tx_mask_normal = tx_mask_normal; 1329 ir->flags.no_tx = mceusb_model[model].no_tx; 1330 ir->model = model; 1331 1332 /* Saving usb interface data for use by the transmitter routine */ 1333 ir->usb_ep_in = ep_in; 1334 ir->usb_ep_out = ep_out; 1335 1336 if (dev->descriptor.iManufacturer 1337 && usb_string(dev, dev->descriptor.iManufacturer, 1338 buf, sizeof(buf)) > 0) 1339 strlcpy(name, buf, sizeof(name)); 1340 if (dev->descriptor.iProduct 1341 && usb_string(dev, dev->descriptor.iProduct, 1342 buf, sizeof(buf)) > 0) 1343 snprintf(name + strlen(name), sizeof(name) - strlen(name), 1344 " %s", buf); 1345 1346 ir->rc = mceusb_init_rc_dev(ir); 1347 if (!ir->rc) 1348 goto rc_dev_fail; 1349 1350 /* wire up inbound data handler */ 1351 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, 1352 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval); 1353 ir->urb_in->transfer_dma = ir->dma_in; 1354 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1355 1356 /* flush buffers on the device */ 1357 mce_dbg(&intf->dev, "Flushing receive buffers\n"); 1358 mce_flush_rx_buffer(ir, maxp); 1359 1360 /* figure out which firmware/emulator version this hardware has */ 1361 mceusb_get_emulator_version(ir); 1362 1363 /* initialize device */ 1364 if (ir->flags.microsoft_gen1) 1365 mceusb_gen1_init(ir); 1366 else if (!is_gen3) 1367 mceusb_gen2_init(ir); 1368 1369 mceusb_get_parameters(ir); 1370 1371 mceusb_flash_led(ir); 1372 1373 if (!ir->flags.no_tx) 1374 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); 1375 1376 usb_set_intfdata(intf, ir); 1377 1378 /* enable wake via this device */ 1379 device_set_wakeup_capable(ir->dev, true); 1380 device_set_wakeup_enable(ir->dev, true); 1381 1382 dev_info(&intf->dev, "Registered %s with mce emulator interface " 1383 "version %x\n", name, ir->emver); 1384 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and " 1385 "%x rx sensors (0x%x active)\n", 1386 ir->num_txports, ir->txports_cabled, 1387 ir->num_rxports, ir->rxports_active); 1388 1389 return 0; 1390 1391 /* Error-handling path */ 1392rc_dev_fail: 1393 usb_free_urb(ir->urb_in); 1394urb_in_alloc_fail: 1395 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); 1396buf_in_alloc_fail: 1397 kfree(ir); 1398mem_alloc_fail: 1399 dev_err(&intf->dev, "%s: device setup failed!\n", __func__); 1400 1401 return -ENOMEM; 1402} 1403 1404 1405static void __devexit mceusb_dev_disconnect(struct usb_interface *intf) 1406{ 1407 struct usb_device *dev = interface_to_usbdev(intf); 1408 struct mceusb_dev *ir = usb_get_intfdata(intf); 1409 1410 usb_set_intfdata(intf, NULL); 1411 1412 if (!ir) 1413 return; 1414 1415 ir->usbdev = NULL; 1416 rc_unregister_device(ir->rc); 1417 usb_kill_urb(ir->urb_in); 1418 usb_free_urb(ir->urb_in); 1419 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); 1420 1421 kfree(ir); 1422} 1423 1424static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) 1425{ 1426 struct mceusb_dev *ir = usb_get_intfdata(intf); 1427 dev_info(ir->dev, "suspend\n"); 1428 usb_kill_urb(ir->urb_in); 1429 return 0; 1430} 1431 1432static int mceusb_dev_resume(struct usb_interface *intf) 1433{ 1434 struct mceusb_dev *ir = usb_get_intfdata(intf); 1435 dev_info(ir->dev, "resume\n"); 1436 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) 1437 return -EIO; 1438 return 0; 1439} 1440 1441static struct usb_driver mceusb_dev_driver = { 1442 .name = DRIVER_NAME, 1443 .probe = mceusb_dev_probe, 1444 .disconnect = mceusb_dev_disconnect, 1445 .suspend = mceusb_dev_suspend, 1446 .resume = mceusb_dev_resume, 1447 .reset_resume = mceusb_dev_resume, 1448 .id_table = mceusb_dev_table 1449}; 1450 1451module_usb_driver(mceusb_dev_driver); 1452 1453MODULE_DESCRIPTION(DRIVER_DESC); 1454MODULE_AUTHOR(DRIVER_AUTHOR); 1455MODULE_LICENSE("GPL"); 1456MODULE_DEVICE_TABLE(usb, mceusb_dev_table); 1457 1458module_param(debug, bool, S_IRUGO | S_IWUSR); 1459MODULE_PARM_DESC(debug, "Debug enabled or not"); 1460