mceusb.c revision a411e83944bc48ce274b1bafdb6929846815856c
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 <linux/pm_wakeup.h> 41#include <media/rc-core.h> 42 43#define DRIVER_VERSION "1.91" 44#define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" 45#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ 46 "device driver" 47#define DRIVER_NAME "mceusb" 48 49#define USB_BUFLEN 32 /* USB reception buffer length */ 50#define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */ 51#define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */ 52 53/* MCE constants */ 54#define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */ 55#define MCE_TIME_UNIT 50 /* Approx 50us resolution */ 56#define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */ 57#define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */ 58#define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */ 59#define MCE_IRDATA_TRAILER 0x80 /* End of IR data */ 60#define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */ 61#define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */ 62#define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */ 63#define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */ 64#define MCE_PULSE_MASK 0x7f /* Pulse mask */ 65#define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */ 66 67/* 68 * The interface between the host and the IR hardware is command-response 69 * based. All commands and responses have a consistent format, where a lead 70 * byte always identifies the type of data following it. The lead byte has 71 * a port value in the 3 highest bits and a length value in the 5 lowest 72 * bits. 73 * 74 * The length field is overloaded, with a value of 11111 indicating that the 75 * following byte is a command or response code, and the length of the entire 76 * message is determined by the code. If the length field is not 11111, then 77 * it specifies the number of bytes of port data that follow. 78 */ 79#define MCE_CMD 0x1f 80#define MCE_PORT_IR 0x4 /* (0x4 << 5) | MCE_CMD = 0x9f */ 81#define MCE_PORT_SYS 0x7 /* (0x7 << 5) | MCE_CMD = 0xff */ 82#define MCE_PORT_SER 0x6 /* 0xc0 thru 0xdf flush & 0x1f bytes */ 83#define MCE_PORT_MASK 0xe0 /* Mask out command bits */ 84 85/* Command port headers */ 86#define MCE_CMD_PORT_IR 0x9f /* IR-related cmd/rsp */ 87#define MCE_CMD_PORT_SYS 0xff /* System (non-IR) device cmd/rsp */ 88 89/* Commands that set device state (2-4 bytes in length) */ 90#define MCE_CMD_RESET 0xfe /* Reset device, 2 bytes */ 91#define MCE_CMD_RESUME 0xaa /* Resume device after error, 2 bytes */ 92#define MCE_CMD_SETIRCFS 0x06 /* Set tx carrier, 4 bytes */ 93#define MCE_CMD_SETIRTIMEOUT 0x0c /* Set timeout, 4 bytes */ 94#define MCE_CMD_SETIRTXPORTS 0x08 /* Set tx ports, 3 bytes */ 95#define MCE_CMD_SETIRRXPORTEN 0x14 /* Set rx ports, 3 bytes */ 96#define MCE_CMD_FLASHLED 0x23 /* Flash receiver LED, 2 bytes */ 97 98/* Commands that query device state (all 2 bytes, unless noted) */ 99#define MCE_CMD_GETIRCFS 0x07 /* Get carrier */ 100#define MCE_CMD_GETIRTIMEOUT 0x0d /* Get timeout */ 101#define MCE_CMD_GETIRTXPORTS 0x13 /* Get tx ports */ 102#define MCE_CMD_GETIRRXPORTEN 0x15 /* Get rx ports */ 103#define MCE_CMD_GETPORTSTATUS 0x11 /* Get tx port status, 3 bytes */ 104#define MCE_CMD_GETIRNUMPORTS 0x16 /* Get number of ports */ 105#define MCE_CMD_GETWAKESOURCE 0x17 /* Get wake source */ 106#define MCE_CMD_GETEMVER 0x22 /* Get emulator interface version */ 107#define MCE_CMD_GETDEVDETAILS 0x21 /* Get device details (em ver2 only) */ 108#define MCE_CMD_GETWAKESUPPORT 0x20 /* Get wake details (em ver2 only) */ 109#define MCE_CMD_GETWAKEVERSION 0x18 /* Get wake pattern (em ver2 only) */ 110 111/* Misc commands */ 112#define MCE_CMD_NOP 0xff /* No operation */ 113 114/* Responses to commands (non-error cases) */ 115#define MCE_RSP_EQIRCFS 0x06 /* tx carrier, 4 bytes */ 116#define MCE_RSP_EQIRTIMEOUT 0x0c /* rx timeout, 4 bytes */ 117#define MCE_RSP_GETWAKESOURCE 0x17 /* wake source, 3 bytes */ 118#define MCE_RSP_EQIRTXPORTS 0x08 /* tx port mask, 3 bytes */ 119#define MCE_RSP_EQIRRXPORTEN 0x14 /* rx port mask, 3 bytes */ 120#define MCE_RSP_GETPORTSTATUS 0x11 /* tx port status, 7 bytes */ 121#define MCE_RSP_EQIRRXCFCNT 0x15 /* rx carrier count, 4 bytes */ 122#define MCE_RSP_EQIRNUMPORTS 0x16 /* number of ports, 4 bytes */ 123#define MCE_RSP_EQWAKESUPPORT 0x20 /* wake capabilities, 3 bytes */ 124#define MCE_RSP_EQWAKEVERSION 0x18 /* wake pattern details, 6 bytes */ 125#define MCE_RSP_EQDEVDETAILS 0x21 /* device capabilities, 3 bytes */ 126#define MCE_RSP_EQEMVER 0x22 /* emulator interface ver, 3 bytes */ 127#define MCE_RSP_FLASHLED 0x23 /* success flashing LED, 2 bytes */ 128 129/* Responses to error cases, must send MCE_CMD_RESUME to clear them */ 130#define MCE_RSP_CMD_ILLEGAL 0xfe /* illegal command for port, 2 bytes */ 131#define MCE_RSP_TX_TIMEOUT 0x81 /* tx timed out, 2 bytes */ 132 133/* Misc commands/responses not defined in the MCE remote/transceiver spec */ 134#define MCE_CMD_SIG_END 0x01 /* End of signal */ 135#define MCE_CMD_PING 0x03 /* Ping device */ 136#define MCE_CMD_UNKNOWN 0x04 /* Unknown */ 137#define MCE_CMD_UNKNOWN2 0x05 /* Unknown */ 138#define MCE_CMD_UNKNOWN3 0x09 /* Unknown */ 139#define MCE_CMD_UNKNOWN4 0x0a /* Unknown */ 140#define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */ 141#define MCE_CMD_UNKNOWN5 0x0e /* Unknown */ 142#define MCE_CMD_UNKNOWN6 0x0f /* Unknown */ 143#define MCE_CMD_UNKNOWN8 0x19 /* Unknown */ 144#define MCE_CMD_UNKNOWN9 0x1b /* Unknown */ 145#define MCE_CMD_NULL 0x00 /* These show up various places... */ 146 147/* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR, 148 * then we're looking at a raw IR data sample */ 149#define MCE_COMMAND_IRDATA 0x80 150#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */ 151 152/* module parameters */ 153#ifdef CONFIG_USB_DEBUG 154static int debug = 1; 155#else 156static int debug; 157#endif 158 159#define mce_dbg(dev, fmt, ...) \ 160 do { \ 161 if (debug) \ 162 dev_info(dev, fmt, ## __VA_ARGS__); \ 163 } while (0) 164 165/* general constants */ 166#define SEND_FLAG_IN_PROGRESS 1 167#define SEND_FLAG_COMPLETE 2 168#define RECV_FLAG_IN_PROGRESS 3 169#define RECV_FLAG_COMPLETE 4 170 171#define MCEUSB_RX 1 172#define MCEUSB_TX 2 173 174#define VENDOR_PHILIPS 0x0471 175#define VENDOR_SMK 0x0609 176#define VENDOR_TATUNG 0x1460 177#define VENDOR_GATEWAY 0x107b 178#define VENDOR_SHUTTLE 0x1308 179#define VENDOR_SHUTTLE2 0x051c 180#define VENDOR_MITSUMI 0x03ee 181#define VENDOR_TOPSEED 0x1784 182#define VENDOR_RICAVISION 0x179d 183#define VENDOR_ITRON 0x195d 184#define VENDOR_FIC 0x1509 185#define VENDOR_LG 0x043e 186#define VENDOR_MICROSOFT 0x045e 187#define VENDOR_FORMOSA 0x147a 188#define VENDOR_FINTEK 0x1934 189#define VENDOR_PINNACLE 0x2304 190#define VENDOR_ECS 0x1019 191#define VENDOR_WISTRON 0x0fb8 192#define VENDOR_COMPRO 0x185b 193#define VENDOR_NORTHSTAR 0x04eb 194#define VENDOR_REALTEK 0x0bda 195#define VENDOR_TIVO 0x105a 196#define VENDOR_CONEXANT 0x0572 197 198enum mceusb_model_type { 199 MCE_GEN2 = 0, /* Most boards */ 200 MCE_GEN1, 201 MCE_GEN3, 202 MCE_GEN2_TX_INV, 203 POLARIS_EVK, 204 CX_HYBRID_TV, 205 MULTIFUNCTION, 206 TIVO_KIT, 207 MCE_GEN2_NO_TX, 208}; 209 210struct mceusb_model { 211 u32 mce_gen1:1; 212 u32 mce_gen2:1; 213 u32 mce_gen3:1; 214 u32 tx_mask_normal:1; 215 u32 no_tx:1; 216 217 int ir_intfnum; 218 219 const char *rc_map; /* Allow specify a per-board map */ 220 const char *name; /* per-board name */ 221}; 222 223static const struct mceusb_model mceusb_model[] = { 224 [MCE_GEN1] = { 225 .mce_gen1 = 1, 226 .tx_mask_normal = 1, 227 }, 228 [MCE_GEN2] = { 229 .mce_gen2 = 1, 230 }, 231 [MCE_GEN2_NO_TX] = { 232 .mce_gen2 = 1, 233 .no_tx = 1, 234 }, 235 [MCE_GEN2_TX_INV] = { 236 .mce_gen2 = 1, 237 .tx_mask_normal = 1, 238 }, 239 [MCE_GEN3] = { 240 .mce_gen3 = 1, 241 .tx_mask_normal = 1, 242 }, 243 [POLARIS_EVK] = { 244 /* 245 * In fact, the EVK is shipped without 246 * remotes, but we should have something handy, 247 * to allow testing it 248 */ 249 .rc_map = RC_MAP_HAUPPAUGE, 250 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 251 }, 252 [CX_HYBRID_TV] = { 253 .no_tx = 1, /* tx isn't wired up at all */ 254 .name = "Conexant Hybrid TV (cx231xx) MCE IR", 255 }, 256 [MULTIFUNCTION] = { 257 .mce_gen2 = 1, 258 .ir_intfnum = 2, 259 }, 260 [TIVO_KIT] = { 261 .mce_gen2 = 1, 262 .rc_map = RC_MAP_TIVO, 263 }, 264}; 265 266static struct usb_device_id mceusb_dev_table[] = { 267 /* Original Microsoft MCE IR Transceiver (often HP-branded) */ 268 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d), 269 .driver_info = MCE_GEN1 }, 270 /* Philips Infrared Transceiver - Sahara branded */ 271 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, 272 /* Philips Infrared Transceiver - HP branded */ 273 { USB_DEVICE(VENDOR_PHILIPS, 0x060c), 274 .driver_info = MCE_GEN2_TX_INV }, 275 /* Philips SRM5100 */ 276 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, 277 /* Philips Infrared Transceiver - Omaura */ 278 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, 279 /* Philips Infrared Transceiver - Spinel plus */ 280 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, 281 /* Philips eHome Infrared Transceiver */ 282 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, 283 /* Philips/Spinel plus IR transceiver for ASUS */ 284 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, 285 /* Philips/Spinel plus IR transceiver for ASUS */ 286 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, 287 /* Philips IR transceiver (Dell branded) */ 288 { USB_DEVICE(VENDOR_PHILIPS, 0x2093) }, 289 /* Realtek MCE IR Receiver and card reader */ 290 { USB_DEVICE(VENDOR_REALTEK, 0x0161), 291 .driver_info = MULTIFUNCTION }, 292 /* SMK/Toshiba G83C0004D410 */ 293 { USB_DEVICE(VENDOR_SMK, 0x031d), 294 .driver_info = MCE_GEN2_TX_INV }, 295 /* SMK eHome Infrared Transceiver (Sony VAIO) */ 296 { USB_DEVICE(VENDOR_SMK, 0x0322), 297 .driver_info = MCE_GEN2_TX_INV }, 298 /* bundled with Hauppauge PVR-150 */ 299 { USB_DEVICE(VENDOR_SMK, 0x0334), 300 .driver_info = MCE_GEN2_TX_INV }, 301 /* SMK eHome Infrared Transceiver */ 302 { USB_DEVICE(VENDOR_SMK, 0x0338) }, 303 /* SMK/I-O Data GV-MC7/RCKIT Receiver */ 304 { USB_DEVICE(VENDOR_SMK, 0x0353), 305 .driver_info = MCE_GEN2_NO_TX }, 306 /* Tatung eHome Infrared Transceiver */ 307 { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, 308 /* Shuttle eHome Infrared Transceiver */ 309 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, 310 /* Shuttle eHome Infrared Transceiver */ 311 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, 312 /* Gateway eHome Infrared Transceiver */ 313 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, 314 /* Mitsumi */ 315 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, 316 /* Topseed eHome Infrared Transceiver */ 317 { USB_DEVICE(VENDOR_TOPSEED, 0x0001), 318 .driver_info = MCE_GEN2_TX_INV }, 319 /* Topseed HP eHome Infrared Transceiver */ 320 { USB_DEVICE(VENDOR_TOPSEED, 0x0006), 321 .driver_info = MCE_GEN2_TX_INV }, 322 /* Topseed eHome Infrared Transceiver */ 323 { USB_DEVICE(VENDOR_TOPSEED, 0x0007), 324 .driver_info = MCE_GEN2_TX_INV }, 325 /* Topseed eHome Infrared Transceiver */ 326 { USB_DEVICE(VENDOR_TOPSEED, 0x0008), 327 .driver_info = MCE_GEN3 }, 328 /* Topseed eHome Infrared Transceiver */ 329 { USB_DEVICE(VENDOR_TOPSEED, 0x000a), 330 .driver_info = MCE_GEN2_TX_INV }, 331 /* Topseed eHome Infrared Transceiver */ 332 { USB_DEVICE(VENDOR_TOPSEED, 0x0011), 333 .driver_info = MCE_GEN3 }, 334 /* Ricavision internal Infrared Transceiver */ 335 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, 336 /* Itron ione Libra Q-11 */ 337 { USB_DEVICE(VENDOR_ITRON, 0x7002) }, 338 /* FIC eHome Infrared Transceiver */ 339 { USB_DEVICE(VENDOR_FIC, 0x9242) }, 340 /* LG eHome Infrared Transceiver */ 341 { USB_DEVICE(VENDOR_LG, 0x9803) }, 342 /* Microsoft MCE Infrared Transceiver */ 343 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, 344 /* Formosa eHome Infrared Transceiver */ 345 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, 346 /* Formosa21 / eHome Infrared Receiver */ 347 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, 348 /* Formosa aim / Trust MCE Infrared Receiver */ 349 { USB_DEVICE(VENDOR_FORMOSA, 0xe017), 350 .driver_info = MCE_GEN2_NO_TX }, 351 /* Formosa Industrial Computing / Beanbag Emulation Device */ 352 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, 353 /* Formosa21 / eHome Infrared Receiver */ 354 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, 355 /* Formosa Industrial Computing AIM IR605/A */ 356 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, 357 /* Formosa Industrial Computing */ 358 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, 359 /* Fintek eHome Infrared Transceiver (HP branded) */ 360 { USB_DEVICE(VENDOR_FINTEK, 0x5168) }, 361 /* Fintek eHome Infrared Transceiver */ 362 { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, 363 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ 364 { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, 365 /* Pinnacle Remote Kit */ 366 { USB_DEVICE(VENDOR_PINNACLE, 0x0225), 367 .driver_info = MCE_GEN3 }, 368 /* Elitegroup Computer Systems IR */ 369 { USB_DEVICE(VENDOR_ECS, 0x0f38) }, 370 /* Wistron Corp. eHome Infrared Receiver */ 371 { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, 372 /* Compro K100 */ 373 { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, 374 /* Compro K100 v2 */ 375 { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, 376 /* Northstar Systems, Inc. eHome Infrared Transceiver */ 377 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, 378 /* TiVo PC IR Receiver */ 379 { USB_DEVICE(VENDOR_TIVO, 0x2000), 380 .driver_info = TIVO_KIT }, 381 /* Conexant Hybrid TV "Shelby" Polaris SDK */ 382 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1), 383 .driver_info = POLARIS_EVK }, 384 /* Conexant Hybrid TV RDU253S Polaris */ 385 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5), 386 .driver_info = CX_HYBRID_TV }, 387 /* Terminating entry */ 388 { } 389}; 390 391/* data structure for each usb transceiver */ 392struct mceusb_dev { 393 /* ir-core bits */ 394 struct rc_dev *rc; 395 396 /* optional features we can enable */ 397 bool carrier_report_enabled; 398 bool learning_enabled; 399 400 /* core device bits */ 401 struct device *dev; 402 403 /* usb */ 404 struct usb_device *usbdev; 405 struct urb *urb_in; 406 struct usb_endpoint_descriptor *usb_ep_in; 407 struct usb_endpoint_descriptor *usb_ep_out; 408 409 /* buffers and dma */ 410 unsigned char *buf_in; 411 unsigned int len_in; 412 dma_addr_t dma_in; 413 dma_addr_t dma_out; 414 415 enum { 416 CMD_HEADER = 0, 417 SUBCMD, 418 CMD_DATA, 419 PARSE_IRDATA, 420 } parser_state; 421 422 u8 cmd, rem; /* Remaining IR data bytes in packet */ 423 424 struct { 425 u32 connected:1; 426 u32 tx_mask_normal:1; 427 u32 microsoft_gen1:1; 428 u32 no_tx:1; 429 } flags; 430 431 /* transmit support */ 432 int send_flags; 433 u32 carrier; 434 unsigned char tx_mask; 435 436 char name[128]; 437 char phys[64]; 438 enum mceusb_model_type model; 439 440 bool need_reset; /* flag to issue a device resume cmd */ 441 u8 emver; /* emulator interface version */ 442 u8 num_txports; /* number of transmit ports */ 443 u8 num_rxports; /* number of receive sensors */ 444 u8 txports_cabled; /* bitmask of transmitters with cable */ 445 u8 rxports_active; /* bitmask of active receive sensors */ 446}; 447 448/* MCE Device Command Strings, generally a port and command pair */ 449static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS, 450 MCE_CMD_RESUME}; 451static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION}; 452static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER}; 453static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION}; 454static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2}; 455static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS}; 456static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT}; 457static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS}; 458static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS}; 459static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN}; 460/* sub in desired values in lower byte or bytes for full command */ 461/* FIXME: make use of these for transmit. 462static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, 463 MCE_CMD_SETIRCFS, 0x00, 0x00}; 464static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00}; 465static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, 466 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00}; 467static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR, 468 MCE_RSP_EQIRRXPORTEN, 0x00}; 469*/ 470 471static int mceusb_cmdsize(u8 cmd, u8 subcmd) 472{ 473 int datasize = 0; 474 475 switch (cmd) { 476 case MCE_CMD_NULL: 477 if (subcmd == MCE_CMD_PORT_SYS) 478 datasize = 1; 479 break; 480 case MCE_CMD_PORT_SYS: 481 switch (subcmd) { 482 case MCE_RSP_EQWAKEVERSION: 483 datasize = 4; 484 break; 485 case MCE_CMD_G_REVISION: 486 datasize = 2; 487 break; 488 case MCE_RSP_EQWAKESUPPORT: 489 datasize = 1; 490 break; 491 } 492 case MCE_CMD_PORT_IR: 493 switch (subcmd) { 494 case MCE_CMD_UNKNOWN: 495 case MCE_RSP_EQIRCFS: 496 case MCE_RSP_EQIRTIMEOUT: 497 case MCE_RSP_EQIRRXCFCNT: 498 datasize = 2; 499 break; 500 case MCE_CMD_SIG_END: 501 case MCE_RSP_EQIRTXPORTS: 502 case MCE_RSP_EQIRRXPORTEN: 503 datasize = 1; 504 break; 505 } 506 } 507 return datasize; 508} 509 510static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf, 511 int offset, int len, bool out) 512{ 513 char codes[USB_BUFLEN * 3 + 1]; 514 char inout[9]; 515 u8 cmd, subcmd, data1, data2, data3, data4, data5; 516 struct device *dev = ir->dev; 517 int i, start, skip = 0; 518 519 if (!debug) 520 return; 521 522 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 523 if (ir->flags.microsoft_gen1 && !out && !offset) 524 skip = 2; 525 526 if (len <= skip) 527 return; 528 529 for (i = 0; i < len && i < USB_BUFLEN; i++) 530 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff); 531 532 dev_info(dev, "%sx data: %s(length=%d)\n", 533 (out ? "t" : "r"), codes, len); 534 535 if (out) 536 strcpy(inout, "Request\0"); 537 else 538 strcpy(inout, "Got\0"); 539 540 start = offset + skip; 541 cmd = buf[start] & 0xff; 542 subcmd = buf[start + 1] & 0xff; 543 data1 = buf[start + 2] & 0xff; 544 data2 = buf[start + 3] & 0xff; 545 data3 = buf[start + 4] & 0xff; 546 data4 = buf[start + 5] & 0xff; 547 data5 = buf[start + 6] & 0xff; 548 549 switch (cmd) { 550 case MCE_CMD_NULL: 551 if (subcmd == MCE_CMD_NULL) 552 break; 553 if ((subcmd == MCE_CMD_PORT_SYS) && 554 (data1 == MCE_CMD_RESUME)) 555 dev_info(dev, "Device resume requested\n"); 556 else 557 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 558 cmd, subcmd); 559 break; 560 case MCE_CMD_PORT_SYS: 561 switch (subcmd) { 562 case MCE_RSP_EQEMVER: 563 if (!out) 564 dev_info(dev, "Emulator interface version %x\n", 565 data1); 566 break; 567 case MCE_CMD_G_REVISION: 568 if (len == 2) 569 dev_info(dev, "Get hw/sw rev?\n"); 570 else 571 dev_info(dev, "hw/sw rev 0x%02x 0x%02x " 572 "0x%02x 0x%02x\n", data1, data2, 573 buf[start + 4], buf[start + 5]); 574 break; 575 case MCE_CMD_RESUME: 576 dev_info(dev, "Device resume requested\n"); 577 break; 578 case MCE_RSP_CMD_ILLEGAL: 579 dev_info(dev, "Illegal PORT_SYS command\n"); 580 break; 581 case MCE_RSP_EQWAKEVERSION: 582 if (!out) 583 dev_info(dev, "Wake version, proto: 0x%02x, " 584 "payload: 0x%02x, address: 0x%02x, " 585 "version: 0x%02x\n", 586 data1, data2, data3, data4); 587 break; 588 case MCE_RSP_GETPORTSTATUS: 589 if (!out) 590 /* We use data1 + 1 here, to match hw labels */ 591 dev_info(dev, "TX port %d: blaster is%s connected\n", 592 data1 + 1, data4 ? " not" : ""); 593 break; 594 default: 595 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 596 cmd, subcmd); 597 break; 598 } 599 break; 600 case MCE_CMD_PORT_IR: 601 switch (subcmd) { 602 case MCE_CMD_SIG_END: 603 dev_info(dev, "End of signal\n"); 604 break; 605 case MCE_CMD_PING: 606 dev_info(dev, "Ping\n"); 607 break; 608 case MCE_CMD_UNKNOWN: 609 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n", 610 data1, data2); 611 break; 612 case MCE_CMD_SETIRCFS: 613 dev_info(dev, "%s carrier mode and freq of " 614 "0x%02x 0x%02x\n", inout, data1, data2); 615 break; 616 case MCE_CMD_GETIRCFS: 617 dev_info(dev, "Get carrier mode and freq\n"); 618 break; 619 case MCE_RSP_EQIRTXPORTS: 620 dev_info(dev, "%s transmit blaster mask of 0x%02x\n", 621 inout, data1); 622 break; 623 case MCE_RSP_EQIRTIMEOUT: 624 /* value is in units of 50us, so x*50/1000 ms */ 625 dev_info(dev, "%s receive timeout of %d ms\n", 626 inout, 627 ((data1 << 8) | data2) * MCE_TIME_UNIT / 1000); 628 break; 629 case MCE_CMD_GETIRTIMEOUT: 630 dev_info(dev, "Get receive timeout\n"); 631 break; 632 case MCE_CMD_GETIRTXPORTS: 633 dev_info(dev, "Get transmit blaster mask\n"); 634 break; 635 case MCE_RSP_EQIRRXPORTEN: 636 dev_info(dev, "%s %s-range receive sensor in use\n", 637 inout, data1 == 0x02 ? "short" : "long"); 638 break; 639 case MCE_CMD_GETIRRXPORTEN: 640 /* aka MCE_RSP_EQIRRXCFCNT */ 641 if (out) 642 dev_info(dev, "Get receive sensor\n"); 643 else if (ir->learning_enabled) 644 dev_info(dev, "RX pulse count: %d\n", 645 ((data1 << 8) | data2)); 646 break; 647 case MCE_RSP_EQIRNUMPORTS: 648 if (out) 649 break; 650 dev_info(dev, "Num TX ports: %x, num RX ports: %x\n", 651 data1, data2); 652 break; 653 case MCE_RSP_CMD_ILLEGAL: 654 dev_info(dev, "Illegal PORT_IR command\n"); 655 break; 656 default: 657 dev_info(dev, "Unknown command 0x%02x 0x%02x\n", 658 cmd, subcmd); 659 break; 660 } 661 break; 662 default: 663 break; 664 } 665 666 if (cmd == MCE_IRDATA_TRAILER) 667 dev_info(dev, "End of raw IR data\n"); 668 else if ((cmd != MCE_CMD_PORT_IR) && 669 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA)) 670 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem); 671} 672 673static void mce_async_callback(struct urb *urb, struct pt_regs *regs) 674{ 675 struct mceusb_dev *ir; 676 int len; 677 678 if (!urb) 679 return; 680 681 ir = urb->context; 682 if (ir) { 683 len = urb->actual_length; 684 685 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true); 686 } 687 688 /* the transfer buffer and urb were allocated in mce_request_packet */ 689 kfree(urb->transfer_buffer); 690 usb_free_urb(urb); 691} 692 693/* request incoming or send outgoing usb packet - used to initialize remote */ 694static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data, 695 int size, int urb_type) 696{ 697 int res, pipe; 698 struct urb *async_urb; 699 struct device *dev = ir->dev; 700 unsigned char *async_buf; 701 702 if (urb_type == MCEUSB_TX) { 703 async_urb = usb_alloc_urb(0, GFP_KERNEL); 704 if (unlikely(!async_urb)) { 705 dev_err(dev, "Error, couldn't allocate urb!\n"); 706 return; 707 } 708 709 async_buf = kzalloc(size, GFP_KERNEL); 710 if (!async_buf) { 711 dev_err(dev, "Error, couldn't allocate buf!\n"); 712 usb_free_urb(async_urb); 713 return; 714 } 715 716 /* outbound data */ 717 pipe = usb_sndintpipe(ir->usbdev, 718 ir->usb_ep_out->bEndpointAddress); 719 usb_fill_int_urb(async_urb, ir->usbdev, pipe, 720 async_buf, size, (usb_complete_t)mce_async_callback, 721 ir, ir->usb_ep_out->bInterval); 722 memcpy(async_buf, data, size); 723 724 } else if (urb_type == MCEUSB_RX) { 725 /* standard request */ 726 async_urb = ir->urb_in; 727 ir->send_flags = RECV_FLAG_IN_PROGRESS; 728 729 } else { 730 dev_err(dev, "Error! Unknown urb type %d\n", urb_type); 731 return; 732 } 733 734 mce_dbg(dev, "receive request called (size=%#x)\n", size); 735 736 async_urb->transfer_buffer_length = size; 737 async_urb->dev = ir->usbdev; 738 739 res = usb_submit_urb(async_urb, GFP_ATOMIC); 740 if (res) { 741 mce_dbg(dev, "receive request FAILED! (res=%d)\n", res); 742 return; 743 } 744 mce_dbg(dev, "receive request complete (res=%d)\n", res); 745} 746 747static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) 748{ 749 int rsize = sizeof(DEVICE_RESUME); 750 751 if (ir->need_reset) { 752 ir->need_reset = false; 753 mce_request_packet(ir, DEVICE_RESUME, rsize, MCEUSB_TX); 754 msleep(10); 755 } 756 757 mce_request_packet(ir, data, size, MCEUSB_TX); 758 msleep(10); 759} 760 761static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size) 762{ 763 mce_request_packet(ir, NULL, size, MCEUSB_RX); 764} 765 766/* Send data out the IR blaster port(s) */ 767static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count) 768{ 769 struct mceusb_dev *ir = dev->priv; 770 int i, ret = 0; 771 int cmdcount = 0; 772 unsigned char *cmdbuf; /* MCE command buffer */ 773 long signal_duration = 0; /* Singnal length in us */ 774 struct timeval start_time, end_time; 775 776 do_gettimeofday(&start_time); 777 778 cmdbuf = kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE, GFP_KERNEL); 779 if (!cmdbuf) 780 return -ENOMEM; 781 782 /* MCE tx init header */ 783 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR; 784 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS; 785 cmdbuf[cmdcount++] = ir->tx_mask; 786 787 /* Generate mce packet data */ 788 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { 789 signal_duration += txbuf[i]; 790 txbuf[i] = txbuf[i] / MCE_TIME_UNIT; 791 792 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ 793 794 /* Insert mce packet header every 4th entry */ 795 if ((cmdcount < MCE_CMDBUF_SIZE) && 796 (cmdcount - MCE_TX_HEADER_LENGTH) % 797 MCE_CODE_LENGTH == 0) 798 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; 799 800 /* Insert mce packet data */ 801 if (cmdcount < MCE_CMDBUF_SIZE) 802 cmdbuf[cmdcount++] = 803 (txbuf[i] < MCE_PULSE_BIT ? 804 txbuf[i] : MCE_MAX_PULSE_LENGTH) | 805 (i & 1 ? 0x00 : MCE_PULSE_BIT); 806 else { 807 ret = -EINVAL; 808 goto out; 809 } 810 811 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && 812 (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); 813 } 814 815 /* Fix packet length in last header */ 816 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] = 817 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) % 818 MCE_CODE_LENGTH - 1; 819 820 /* Check if we have room for the empty packet at the end */ 821 if (cmdcount >= MCE_CMDBUF_SIZE) { 822 ret = -EINVAL; 823 goto out; 824 } 825 826 /* All mce commands end with an empty packet (0x80) */ 827 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; 828 829 /* Transmit the command to the mce device */ 830 mce_async_out(ir, cmdbuf, cmdcount); 831 832 /* 833 * The lircd gap calculation expects the write function to 834 * wait the time it takes for the ircommand to be sent before 835 * it returns. 836 */ 837 do_gettimeofday(&end_time); 838 signal_duration -= (end_time.tv_usec - start_time.tv_usec) + 839 (end_time.tv_sec - start_time.tv_sec) * 1000000; 840 841 /* delay with the closest number of ticks */ 842 set_current_state(TASK_INTERRUPTIBLE); 843 schedule_timeout(usecs_to_jiffies(signal_duration)); 844 845out: 846 kfree(cmdbuf); 847 return ret ? ret : count; 848} 849 850/* Sets active IR outputs -- mce devices typically have two */ 851static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) 852{ 853 struct mceusb_dev *ir = dev->priv; 854 855 if (ir->flags.tx_mask_normal) 856 ir->tx_mask = mask; 857 else 858 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? 859 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; 860 861 return 0; 862} 863 864/* Sets the send carrier frequency and mode */ 865static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier) 866{ 867 struct mceusb_dev *ir = dev->priv; 868 int clk = 10000000; 869 int prescaler = 0, divisor = 0; 870 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR, 871 MCE_CMD_SETIRCFS, 0x00, 0x00 }; 872 873 /* Carrier has changed */ 874 if (ir->carrier != carrier) { 875 876 if (carrier == 0) { 877 ir->carrier = carrier; 878 cmdbuf[2] = MCE_CMD_SIG_END; 879 cmdbuf[3] = MCE_IRDATA_TRAILER; 880 mce_dbg(ir->dev, "%s: disabling carrier " 881 "modulation\n", __func__); 882 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 883 return carrier; 884 } 885 886 for (prescaler = 0; prescaler < 4; ++prescaler) { 887 divisor = (clk >> (2 * prescaler)) / carrier; 888 if (divisor <= 0xff) { 889 ir->carrier = carrier; 890 cmdbuf[2] = prescaler; 891 cmdbuf[3] = divisor; 892 mce_dbg(ir->dev, "%s: requesting %u HZ " 893 "carrier\n", __func__, carrier); 894 895 /* Transmit new carrier to mce device */ 896 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 897 return carrier; 898 } 899 } 900 901 return -EINVAL; 902 903 } 904 905 return carrier; 906} 907 908/* 909 * We don't do anything but print debug spew for many of the command bits 910 * we receive from the hardware, but some of them are useful information 911 * we want to store so that we can use them. 912 */ 913static void mceusb_handle_command(struct mceusb_dev *ir, int index) 914{ 915 u8 hi = ir->buf_in[index + 1] & 0xff; 916 u8 lo = ir->buf_in[index + 2] & 0xff; 917 918 switch (ir->buf_in[index]) { 919 /* the one and only 5-byte return value command */ 920 case MCE_RSP_GETPORTSTATUS: 921 if ((ir->buf_in[index + 4] & 0xff) == 0x00) 922 ir->txports_cabled |= 1 << hi; 923 break; 924 925 /* 2-byte return value commands */ 926 case MCE_RSP_EQIRTIMEOUT: 927 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT); 928 break; 929 case MCE_RSP_EQIRNUMPORTS: 930 ir->num_txports = hi; 931 ir->num_rxports = lo; 932 break; 933 934 /* 1-byte return value commands */ 935 case MCE_RSP_EQEMVER: 936 ir->emver = hi; 937 break; 938 case MCE_RSP_EQIRTXPORTS: 939 ir->tx_mask = hi; 940 break; 941 case MCE_RSP_EQIRRXPORTEN: 942 ir->learning_enabled = ((hi & 0x02) == 0x02); 943 ir->rxports_active = hi; 944 break; 945 case MCE_RSP_CMD_ILLEGAL: 946 ir->need_reset = true; 947 break; 948 default: 949 break; 950 } 951} 952 953static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) 954{ 955 DEFINE_IR_RAW_EVENT(rawir); 956 int i = 0; 957 958 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ 959 if (ir->flags.microsoft_gen1) 960 i = 2; 961 962 /* if there's no data, just return now */ 963 if (buf_len <= i) 964 return; 965 966 for (; i < buf_len; i++) { 967 switch (ir->parser_state) { 968 case SUBCMD: 969 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]); 970 mceusb_dev_printdata(ir, ir->buf_in, i - 1, 971 ir->rem + 2, false); 972 mceusb_handle_command(ir, i); 973 ir->parser_state = CMD_DATA; 974 break; 975 case PARSE_IRDATA: 976 ir->rem--; 977 init_ir_raw_event(&rawir); 978 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); 979 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK) 980 * US_TO_NS(MCE_TIME_UNIT); 981 982 mce_dbg(ir->dev, "Storing %s with duration %d\n", 983 rawir.pulse ? "pulse" : "space", 984 rawir.duration); 985 986 ir_raw_event_store_with_filter(ir->rc, &rawir); 987 break; 988 case CMD_DATA: 989 ir->rem--; 990 break; 991 case CMD_HEADER: 992 /* decode mce packets of the form (84),AA,BB,CC,DD */ 993 /* IR data packets can span USB messages - rem */ 994 ir->cmd = ir->buf_in[i]; 995 if ((ir->cmd == MCE_CMD_PORT_IR) || 996 ((ir->cmd & MCE_PORT_MASK) != 997 MCE_COMMAND_IRDATA)) { 998 ir->parser_state = SUBCMD; 999 continue; 1000 } 1001 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); 1002 mceusb_dev_printdata(ir, ir->buf_in, 1003 i, ir->rem + 1, false); 1004 if (ir->rem) 1005 ir->parser_state = PARSE_IRDATA; 1006 else 1007 ir_raw_event_reset(ir->rc); 1008 break; 1009 } 1010 1011 if (ir->parser_state != CMD_HEADER && !ir->rem) 1012 ir->parser_state = CMD_HEADER; 1013 } 1014 mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n"); 1015 ir_raw_event_handle(ir->rc); 1016} 1017 1018static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs) 1019{ 1020 struct mceusb_dev *ir; 1021 int buf_len; 1022 1023 if (!urb) 1024 return; 1025 1026 ir = urb->context; 1027 if (!ir) { 1028 usb_unlink_urb(urb); 1029 return; 1030 } 1031 1032 buf_len = urb->actual_length; 1033 1034 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) { 1035 ir->send_flags = SEND_FLAG_COMPLETE; 1036 mce_dbg(ir->dev, "setup answer received %d bytes\n", 1037 buf_len); 1038 } 1039 1040 switch (urb->status) { 1041 /* success */ 1042 case 0: 1043 mceusb_process_ir_data(ir, buf_len); 1044 break; 1045 1046 case -ECONNRESET: 1047 case -ENOENT: 1048 case -ESHUTDOWN: 1049 usb_unlink_urb(urb); 1050 return; 1051 1052 case -EPIPE: 1053 default: 1054 mce_dbg(ir->dev, "Error: urb status = %d\n", urb->status); 1055 break; 1056 } 1057 1058 usb_submit_urb(urb, GFP_ATOMIC); 1059} 1060 1061static void mceusb_get_emulator_version(struct mceusb_dev *ir) 1062{ 1063 /* If we get no reply or an illegal command reply, its ver 1, says MS */ 1064 ir->emver = 1; 1065 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER)); 1066} 1067 1068static void mceusb_gen1_init(struct mceusb_dev *ir) 1069{ 1070 int ret; 1071 struct device *dev = ir->dev; 1072 char *data; 1073 1074 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); 1075 if (!data) { 1076 dev_err(dev, "%s: memory allocation failed!\n", __func__); 1077 return; 1078 } 1079 1080 /* 1081 * This is a strange one. Windows issues a set address to the device 1082 * on the receive control pipe and expect a certain value pair back 1083 */ 1084 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), 1085 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, 1086 data, USB_CTRL_MSG_SZ, HZ * 3); 1087 mce_dbg(dev, "%s - ret = %d\n", __func__, ret); 1088 mce_dbg(dev, "%s - data[0] = %d, data[1] = %d\n", 1089 __func__, data[0], data[1]); 1090 1091 /* set feature: bit rate 38400 bps */ 1092 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1093 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, 1094 0xc04e, 0x0000, NULL, 0, HZ * 3); 1095 1096 mce_dbg(dev, "%s - ret = %d\n", __func__, ret); 1097 1098 /* bRequest 4: set char length to 8 bits */ 1099 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1100 4, USB_TYPE_VENDOR, 1101 0x0808, 0x0000, NULL, 0, HZ * 3); 1102 mce_dbg(dev, "%s - retB = %d\n", __func__, ret); 1103 1104 /* bRequest 2: set handshaking to use DTR/DSR */ 1105 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), 1106 2, USB_TYPE_VENDOR, 1107 0x0000, 0x0100, NULL, 0, HZ * 3); 1108 mce_dbg(dev, "%s - retC = %d\n", __func__, ret); 1109 1110 /* device resume */ 1111 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1112 1113 /* get hw/sw revision? */ 1114 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1115 1116 kfree(data); 1117}; 1118 1119static void mceusb_gen2_init(struct mceusb_dev *ir) 1120{ 1121 /* device resume */ 1122 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); 1123 1124 /* get hw/sw revision? */ 1125 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); 1126 1127 /* get wake version (protocol, key, address) */ 1128 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION)); 1129 1130 /* unknown what this one actually returns... */ 1131 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); 1132} 1133 1134static void mceusb_get_parameters(struct mceusb_dev *ir) 1135{ 1136 int i; 1137 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS, 1138 MCE_CMD_GETPORTSTATUS, 0x00 }; 1139 1140 /* defaults, if the hardware doesn't support querying */ 1141 ir->num_txports = 2; 1142 ir->num_rxports = 2; 1143 1144 /* get number of tx and rx ports */ 1145 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS)); 1146 1147 /* get the carrier and frequency */ 1148 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); 1149 1150 if (ir->num_txports && !ir->flags.no_tx) 1151 /* get the transmitter bitmask */ 1152 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); 1153 1154 /* get receiver timeout value */ 1155 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); 1156 1157 /* get receiver sensor setting */ 1158 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); 1159 1160 for (i = 0; i < ir->num_txports; i++) { 1161 cmdbuf[2] = i; 1162 mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); 1163 } 1164} 1165 1166static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) 1167{ 1168 struct device *dev = ir->dev; 1169 struct rc_dev *rc; 1170 int ret; 1171 1172 rc = rc_allocate_device(); 1173 if (!rc) { 1174 dev_err(dev, "remote dev allocation failed\n"); 1175 goto out; 1176 } 1177 1178 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", 1179 mceusb_model[ir->model].name ? 1180 mceusb_model[ir->model].name : 1181 "Media Center Ed. eHome Infrared Remote Transceiver", 1182 le16_to_cpu(ir->usbdev->descriptor.idVendor), 1183 le16_to_cpu(ir->usbdev->descriptor.idProduct)); 1184 1185 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); 1186 1187 rc->input_name = ir->name; 1188 rc->input_phys = ir->phys; 1189 usb_to_input_id(ir->usbdev, &rc->input_id); 1190 rc->dev.parent = dev; 1191 rc->priv = ir; 1192 rc->driver_type = RC_DRIVER_IR_RAW; 1193 rc->allowed_protos = RC_TYPE_ALL; 1194 rc->timeout = MS_TO_NS(100); 1195 if (!ir->flags.no_tx) { 1196 rc->s_tx_mask = mceusb_set_tx_mask; 1197 rc->s_tx_carrier = mceusb_set_tx_carrier; 1198 rc->tx_ir = mceusb_tx_ir; 1199 } 1200 rc->driver_name = DRIVER_NAME; 1201 rc->map_name = mceusb_model[ir->model].rc_map ? 1202 mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE; 1203 1204 ret = rc_register_device(rc); 1205 if (ret < 0) { 1206 dev_err(dev, "remote dev registration failed\n"); 1207 goto out; 1208 } 1209 1210 return rc; 1211 1212out: 1213 rc_free_device(rc); 1214 return NULL; 1215} 1216 1217static int __devinit mceusb_dev_probe(struct usb_interface *intf, 1218 const struct usb_device_id *id) 1219{ 1220 struct usb_device *dev = interface_to_usbdev(intf); 1221 struct usb_host_interface *idesc; 1222 struct usb_endpoint_descriptor *ep = NULL; 1223 struct usb_endpoint_descriptor *ep_in = NULL; 1224 struct usb_endpoint_descriptor *ep_out = NULL; 1225 struct mceusb_dev *ir = NULL; 1226 int pipe, maxp, i; 1227 char buf[63], name[128] = ""; 1228 enum mceusb_model_type model = id->driver_info; 1229 bool is_gen3; 1230 bool is_microsoft_gen1; 1231 bool tx_mask_normal; 1232 int ir_intfnum; 1233 1234 mce_dbg(&intf->dev, "%s called\n", __func__); 1235 1236 idesc = intf->cur_altsetting; 1237 1238 is_gen3 = mceusb_model[model].mce_gen3; 1239 is_microsoft_gen1 = mceusb_model[model].mce_gen1; 1240 tx_mask_normal = mceusb_model[model].tx_mask_normal; 1241 ir_intfnum = mceusb_model[model].ir_intfnum; 1242 1243 /* There are multi-function devices with non-IR interfaces */ 1244 if (idesc->desc.bInterfaceNumber != ir_intfnum) 1245 return -ENODEV; 1246 1247 /* step through the endpoints to find first bulk in and out endpoint */ 1248 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { 1249 ep = &idesc->endpoint[i].desc; 1250 1251 if ((ep_in == NULL) 1252 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1253 == USB_DIR_IN) 1254 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1255 == USB_ENDPOINT_XFER_BULK) 1256 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1257 == USB_ENDPOINT_XFER_INT))) { 1258 1259 ep_in = ep; 1260 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT; 1261 ep_in->bInterval = 1; 1262 mce_dbg(&intf->dev, "acceptable inbound endpoint " 1263 "found\n"); 1264 } 1265 1266 if ((ep_out == NULL) 1267 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1268 == USB_DIR_OUT) 1269 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1270 == USB_ENDPOINT_XFER_BULK) 1271 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1272 == USB_ENDPOINT_XFER_INT))) { 1273 1274 ep_out = ep; 1275 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT; 1276 ep_out->bInterval = 1; 1277 mce_dbg(&intf->dev, "acceptable outbound endpoint " 1278 "found\n"); 1279 } 1280 } 1281 if (ep_in == NULL) { 1282 mce_dbg(&intf->dev, "inbound and/or endpoint not found\n"); 1283 return -ENODEV; 1284 } 1285 1286 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); 1287 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 1288 1289 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); 1290 if (!ir) 1291 goto mem_alloc_fail; 1292 1293 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); 1294 if (!ir->buf_in) 1295 goto buf_in_alloc_fail; 1296 1297 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); 1298 if (!ir->urb_in) 1299 goto urb_in_alloc_fail; 1300 1301 ir->usbdev = dev; 1302 ir->dev = &intf->dev; 1303 ir->len_in = maxp; 1304 ir->flags.microsoft_gen1 = is_microsoft_gen1; 1305 ir->flags.tx_mask_normal = tx_mask_normal; 1306 ir->flags.no_tx = mceusb_model[model].no_tx; 1307 ir->model = model; 1308 1309 /* Saving usb interface data for use by the transmitter routine */ 1310 ir->usb_ep_in = ep_in; 1311 ir->usb_ep_out = ep_out; 1312 1313 if (dev->descriptor.iManufacturer 1314 && usb_string(dev, dev->descriptor.iManufacturer, 1315 buf, sizeof(buf)) > 0) 1316 strlcpy(name, buf, sizeof(name)); 1317 if (dev->descriptor.iProduct 1318 && usb_string(dev, dev->descriptor.iProduct, 1319 buf, sizeof(buf)) > 0) 1320 snprintf(name + strlen(name), sizeof(name) - strlen(name), 1321 " %s", buf); 1322 1323 ir->rc = mceusb_init_rc_dev(ir); 1324 if (!ir->rc) 1325 goto rc_dev_fail; 1326 1327 /* wire up inbound data handler */ 1328 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, 1329 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval); 1330 ir->urb_in->transfer_dma = ir->dma_in; 1331 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1332 1333 /* flush buffers on the device */ 1334 mce_dbg(&intf->dev, "Flushing receive buffers\n"); 1335 mce_flush_rx_buffer(ir, maxp); 1336 1337 /* figure out which firmware/emulator version this hardware has */ 1338 mceusb_get_emulator_version(ir); 1339 1340 /* initialize device */ 1341 if (ir->flags.microsoft_gen1) 1342 mceusb_gen1_init(ir); 1343 else if (!is_gen3) 1344 mceusb_gen2_init(ir); 1345 1346 mceusb_get_parameters(ir); 1347 1348 if (!ir->flags.no_tx) 1349 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); 1350 1351 usb_set_intfdata(intf, ir); 1352 1353 /* enable wake via this device */ 1354 device_set_wakeup_capable(ir->dev, true); 1355 device_set_wakeup_enable(ir->dev, true); 1356 1357 dev_info(&intf->dev, "Registered %s with mce emulator interface " 1358 "version %x\n", name, ir->emver); 1359 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and " 1360 "%x rx sensors (0x%x active)\n", 1361 ir->num_txports, ir->txports_cabled, 1362 ir->num_rxports, ir->rxports_active); 1363 1364 return 0; 1365 1366 /* Error-handling path */ 1367rc_dev_fail: 1368 usb_free_urb(ir->urb_in); 1369urb_in_alloc_fail: 1370 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); 1371buf_in_alloc_fail: 1372 kfree(ir); 1373mem_alloc_fail: 1374 dev_err(&intf->dev, "%s: device setup failed!\n", __func__); 1375 1376 return -ENOMEM; 1377} 1378 1379 1380static void __devexit mceusb_dev_disconnect(struct usb_interface *intf) 1381{ 1382 struct usb_device *dev = interface_to_usbdev(intf); 1383 struct mceusb_dev *ir = usb_get_intfdata(intf); 1384 1385 usb_set_intfdata(intf, NULL); 1386 1387 if (!ir) 1388 return; 1389 1390 ir->usbdev = NULL; 1391 rc_unregister_device(ir->rc); 1392 usb_kill_urb(ir->urb_in); 1393 usb_free_urb(ir->urb_in); 1394 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); 1395 1396 kfree(ir); 1397} 1398 1399static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) 1400{ 1401 struct mceusb_dev *ir = usb_get_intfdata(intf); 1402 dev_info(ir->dev, "suspend\n"); 1403 usb_kill_urb(ir->urb_in); 1404 return 0; 1405} 1406 1407static int mceusb_dev_resume(struct usb_interface *intf) 1408{ 1409 struct mceusb_dev *ir = usb_get_intfdata(intf); 1410 dev_info(ir->dev, "resume\n"); 1411 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) 1412 return -EIO; 1413 return 0; 1414} 1415 1416static struct usb_driver mceusb_dev_driver = { 1417 .name = DRIVER_NAME, 1418 .probe = mceusb_dev_probe, 1419 .disconnect = mceusb_dev_disconnect, 1420 .suspend = mceusb_dev_suspend, 1421 .resume = mceusb_dev_resume, 1422 .reset_resume = mceusb_dev_resume, 1423 .id_table = mceusb_dev_table 1424}; 1425 1426static int __init mceusb_dev_init(void) 1427{ 1428 int ret; 1429 1430 ret = usb_register(&mceusb_dev_driver); 1431 if (ret < 0) 1432 printk(KERN_ERR DRIVER_NAME 1433 ": usb register failed, result = %d\n", ret); 1434 1435 return ret; 1436} 1437 1438static void __exit mceusb_dev_exit(void) 1439{ 1440 usb_deregister(&mceusb_dev_driver); 1441} 1442 1443module_init(mceusb_dev_init); 1444module_exit(mceusb_dev_exit); 1445 1446MODULE_DESCRIPTION(DRIVER_DESC); 1447MODULE_AUTHOR(DRIVER_AUTHOR); 1448MODULE_LICENSE("GPL"); 1449MODULE_DEVICE_TABLE(usb, mceusb_dev_table); 1450 1451module_param(debug, bool, S_IRUGO | S_IWUSR); 1452MODULE_PARM_DESC(debug, "Debug enabled or not"); 1453