2 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
4 * Copyright (c) 2010 by Jarod Wilson <jarod@redhat.com>
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.
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.
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.
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
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>
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 " \
47 #define DRIVER_NAME "mceusb"
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 */
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 */
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
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.
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 */
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 */
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 */
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) */
112 #define MCE_CMD_NOP 0xff /* No operation */
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 */
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 */
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... */
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 */
152 /* module parameters */
153 #ifdef CONFIG_USB_DEBUG
154 static int debug = 1;
159 #define mce_dbg(dev, fmt, ...) \
162 dev_info(dev, fmt, ## __VA_ARGS__); \
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
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
198 enum mceusb_model_type {
199 MCE_GEN2 = 0, /* Most boards */
210 struct mceusb_model {
214 u32 tx_mask_normal:1;
219 const char *rc_map; /* Allow specify a per-board map */
220 const char *name; /* per-board name */
223 static const struct mceusb_model mceusb_model[] = {
235 [MCE_GEN2_TX_INV] = {
245 * In fact, the EVK is shipped without
246 * remotes, but we should have something handy,
247 * to allow testing it
249 .rc_map = RC_MAP_HAUPPAUGE,
250 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
253 .no_tx = 1, /* tx isn't wired up at all */
254 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
262 .rc_map = RC_MAP_TIVO,
266 static 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) },
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) },
373 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
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 */
391 /* data structure for each usb transceiver */
396 /* optional features we can enable */
397 bool carrier_report_enabled;
398 bool learning_enabled;
400 /* core device bits */
404 struct usb_device *usbdev;
406 struct usb_endpoint_descriptor *usb_ep_in;
407 struct usb_endpoint_descriptor *usb_ep_out;
409 /* buffers and dma */
410 unsigned char *buf_in;
422 u8 cmd, rem; /* Remaining IR data bytes in packet */
426 u32 tx_mask_normal:1;
427 u32 microsoft_gen1:1;
431 /* transmit support */
434 unsigned char tx_mask;
438 enum mceusb_model_type model;
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 */
448 /* MCE Device Command Strings, generally a port and command pair */
449 static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS,
451 static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION};
452 static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER};
453 static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION};
454 static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED};
455 static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2};
456 static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS};
457 static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT};
458 static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS};
459 static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS};
460 static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN};
461 /* sub in desired values in lower byte or bytes for full command */
462 /* FIXME: make use of these for transmit.
463 static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR,
464 MCE_CMD_SETIRCFS, 0x00, 0x00};
465 static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00};
466 static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR,
467 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00};
468 static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR,
469 MCE_RSP_EQIRRXPORTEN, 0x00};
472 static int mceusb_cmdsize(u8 cmd, u8 subcmd)
478 if (subcmd == MCE_CMD_PORT_SYS)
481 case MCE_CMD_PORT_SYS:
483 case MCE_RSP_EQWAKEVERSION:
486 case MCE_CMD_G_REVISION:
489 case MCE_RSP_EQWAKESUPPORT:
493 case MCE_CMD_PORT_IR:
495 case MCE_CMD_UNKNOWN:
496 case MCE_RSP_EQIRCFS:
497 case MCE_RSP_EQIRTIMEOUT:
498 case MCE_RSP_EQIRRXCFCNT:
501 case MCE_CMD_SIG_END:
502 case MCE_RSP_EQIRTXPORTS:
503 case MCE_RSP_EQIRRXPORTEN:
511 static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
512 int offset, int len, bool out)
514 char codes[USB_BUFLEN * 3 + 1];
516 u8 cmd, subcmd, data1, data2, data3, data4, data5;
517 struct device *dev = ir->dev;
518 int i, start, skip = 0;
524 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
525 if (ir->flags.microsoft_gen1 && !out && !offset)
531 for (i = 0; i < len && i < USB_BUFLEN; i++)
532 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff);
534 dev_info(dev, "%sx data: %s(length=%d)\n",
535 (out ? "t" : "r"), codes, len);
538 strcpy(inout, "Request\0");
540 strcpy(inout, "Got\0");
542 start = offset + skip;
543 cmd = buf[start] & 0xff;
544 subcmd = buf[start + 1] & 0xff;
545 data1 = buf[start + 2] & 0xff;
546 data2 = buf[start + 3] & 0xff;
547 data3 = buf[start + 4] & 0xff;
548 data4 = buf[start + 5] & 0xff;
549 data5 = buf[start + 6] & 0xff;
553 if (subcmd == MCE_CMD_NULL)
555 if ((subcmd == MCE_CMD_PORT_SYS) &&
556 (data1 == MCE_CMD_RESUME))
557 dev_info(dev, "Device resume requested\n");
559 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
562 case MCE_CMD_PORT_SYS:
564 case MCE_RSP_EQEMVER:
566 dev_info(dev, "Emulator interface version %x\n",
569 case MCE_CMD_G_REVISION:
571 dev_info(dev, "Get hw/sw rev?\n");
573 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
574 "0x%02x 0x%02x\n", data1, data2,
575 buf[start + 4], buf[start + 5]);
578 dev_info(dev, "Device resume requested\n");
580 case MCE_RSP_CMD_ILLEGAL:
581 dev_info(dev, "Illegal PORT_SYS command\n");
583 case MCE_RSP_EQWAKEVERSION:
585 dev_info(dev, "Wake version, proto: 0x%02x, "
586 "payload: 0x%02x, address: 0x%02x, "
588 data1, data2, data3, data4);
590 case MCE_RSP_GETPORTSTATUS:
592 /* We use data1 + 1 here, to match hw labels */
593 dev_info(dev, "TX port %d: blaster is%s connected\n",
594 data1 + 1, data4 ? " not" : "");
596 case MCE_CMD_FLASHLED:
597 dev_info(dev, "Attempting to flash LED\n");
600 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
605 case MCE_CMD_PORT_IR:
607 case MCE_CMD_SIG_END:
608 dev_info(dev, "End of signal\n");
611 dev_info(dev, "Ping\n");
613 case MCE_CMD_UNKNOWN:
614 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
617 case MCE_RSP_EQIRCFS:
618 period = DIV_ROUND_CLOSEST(
619 (1 << data1 * 2) * (data2 + 1), 10);
622 carrier = (1000 * 1000) / period;
623 dev_info(dev, "%s carrier of %u Hz (period %uus)\n",
624 inout, carrier, period);
626 case MCE_CMD_GETIRCFS:
627 dev_info(dev, "Get carrier mode and freq\n");
629 case MCE_RSP_EQIRTXPORTS:
630 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
633 case MCE_RSP_EQIRTIMEOUT:
634 /* value is in units of 50us, so x*50/1000 ms */
635 period = ((data1 << 8) | data2) * MCE_TIME_UNIT / 1000;
636 dev_info(dev, "%s receive timeout of %d ms\n",
639 case MCE_CMD_GETIRTIMEOUT:
640 dev_info(dev, "Get receive timeout\n");
642 case MCE_CMD_GETIRTXPORTS:
643 dev_info(dev, "Get transmit blaster mask\n");
645 case MCE_RSP_EQIRRXPORTEN:
646 dev_info(dev, "%s %s-range receive sensor in use\n",
647 inout, data1 == 0x02 ? "short" : "long");
649 case MCE_CMD_GETIRRXPORTEN:
650 /* aka MCE_RSP_EQIRRXCFCNT */
652 dev_info(dev, "Get receive sensor\n");
653 else if (ir->learning_enabled)
654 dev_info(dev, "RX pulse count: %d\n",
655 ((data1 << 8) | data2));
657 case MCE_RSP_EQIRNUMPORTS:
660 dev_info(dev, "Num TX ports: %x, num RX ports: %x\n",
663 case MCE_RSP_CMD_ILLEGAL:
664 dev_info(dev, "Illegal PORT_IR command\n");
667 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
676 if (cmd == MCE_IRDATA_TRAILER)
677 dev_info(dev, "End of raw IR data\n");
678 else if ((cmd != MCE_CMD_PORT_IR) &&
679 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA))
680 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
683 static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
685 struct mceusb_dev *ir;
693 len = urb->actual_length;
695 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
698 /* the transfer buffer and urb were allocated in mce_request_packet */
699 kfree(urb->transfer_buffer);
703 /* request incoming or send outgoing usb packet - used to initialize remote */
704 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data,
705 int size, int urb_type)
708 struct urb *async_urb;
709 struct device *dev = ir->dev;
710 unsigned char *async_buf;
712 if (urb_type == MCEUSB_TX) {
713 async_urb = usb_alloc_urb(0, GFP_KERNEL);
714 if (unlikely(!async_urb)) {
715 dev_err(dev, "Error, couldn't allocate urb!\n");
719 async_buf = kzalloc(size, GFP_KERNEL);
721 dev_err(dev, "Error, couldn't allocate buf!\n");
722 usb_free_urb(async_urb);
727 pipe = usb_sndintpipe(ir->usbdev,
728 ir->usb_ep_out->bEndpointAddress);
729 usb_fill_int_urb(async_urb, ir->usbdev, pipe,
730 async_buf, size, (usb_complete_t)mce_async_callback,
731 ir, ir->usb_ep_out->bInterval);
732 memcpy(async_buf, data, size);
734 } else if (urb_type == MCEUSB_RX) {
735 /* standard request */
736 async_urb = ir->urb_in;
737 ir->send_flags = RECV_FLAG_IN_PROGRESS;
740 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
744 mce_dbg(dev, "receive request called (size=%#x)\n", size);
746 async_urb->transfer_buffer_length = size;
747 async_urb->dev = ir->usbdev;
749 res = usb_submit_urb(async_urb, GFP_ATOMIC);
751 mce_dbg(dev, "receive request FAILED! (res=%d)\n", res);
754 mce_dbg(dev, "receive request complete (res=%d)\n", res);
757 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
759 int rsize = sizeof(DEVICE_RESUME);
761 if (ir->need_reset) {
762 ir->need_reset = false;
763 mce_request_packet(ir, DEVICE_RESUME, rsize, MCEUSB_TX);
767 mce_request_packet(ir, data, size, MCEUSB_TX);
771 static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size)
773 mce_request_packet(ir, NULL, size, MCEUSB_RX);
776 /* Send data out the IR blaster port(s) */
777 static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
779 struct mceusb_dev *ir = dev->priv;
782 unsigned char *cmdbuf; /* MCE command buffer */
783 long signal_duration = 0; /* Singnal length in us */
784 struct timeval start_time, end_time;
786 do_gettimeofday(&start_time);
788 cmdbuf = kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE, GFP_KERNEL);
792 /* MCE tx init header */
793 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR;
794 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS;
795 cmdbuf[cmdcount++] = ir->tx_mask;
797 /* Generate mce packet data */
798 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
799 signal_duration += txbuf[i];
800 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
802 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
804 /* Insert mce packet header every 4th entry */
805 if ((cmdcount < MCE_CMDBUF_SIZE) &&
806 (cmdcount - MCE_TX_HEADER_LENGTH) %
807 MCE_CODE_LENGTH == 0)
808 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
810 /* Insert mce packet data */
811 if (cmdcount < MCE_CMDBUF_SIZE)
813 (txbuf[i] < MCE_PULSE_BIT ?
814 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
815 (i & 1 ? 0x00 : MCE_PULSE_BIT);
821 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
822 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
825 /* Fix packet length in last header */
826 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
827 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) %
830 /* Check if we have room for the empty packet at the end */
831 if (cmdcount >= MCE_CMDBUF_SIZE) {
836 /* All mce commands end with an empty packet (0x80) */
837 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
839 /* Transmit the command to the mce device */
840 mce_async_out(ir, cmdbuf, cmdcount);
843 * The lircd gap calculation expects the write function to
844 * wait the time it takes for the ircommand to be sent before
847 do_gettimeofday(&end_time);
848 signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
849 (end_time.tv_sec - start_time.tv_sec) * 1000000;
851 /* delay with the closest number of ticks */
852 set_current_state(TASK_INTERRUPTIBLE);
853 schedule_timeout(usecs_to_jiffies(signal_duration));
857 return ret ? ret : count;
860 /* Sets active IR outputs -- mce devices typically have two */
861 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
863 struct mceusb_dev *ir = dev->priv;
865 if (ir->flags.tx_mask_normal)
868 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
869 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
874 /* Sets the send carrier frequency and mode */
875 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
877 struct mceusb_dev *ir = dev->priv;
879 int prescaler = 0, divisor = 0;
880 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR,
881 MCE_CMD_SETIRCFS, 0x00, 0x00 };
883 /* Carrier has changed */
884 if (ir->carrier != carrier) {
887 ir->carrier = carrier;
888 cmdbuf[2] = MCE_CMD_SIG_END;
889 cmdbuf[3] = MCE_IRDATA_TRAILER;
890 mce_dbg(ir->dev, "%s: disabling carrier "
891 "modulation\n", __func__);
892 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
896 for (prescaler = 0; prescaler < 4; ++prescaler) {
897 divisor = (clk >> (2 * prescaler)) / carrier;
898 if (divisor <= 0xff) {
899 ir->carrier = carrier;
900 cmdbuf[2] = prescaler;
902 mce_dbg(ir->dev, "%s: requesting %u HZ "
903 "carrier\n", __func__, carrier);
905 /* Transmit new carrier to mce device */
906 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
919 * We don't do anything but print debug spew for many of the command bits
920 * we receive from the hardware, but some of them are useful information
921 * we want to store so that we can use them.
923 static void mceusb_handle_command(struct mceusb_dev *ir, int index)
925 u8 hi = ir->buf_in[index + 1] & 0xff;
926 u8 lo = ir->buf_in[index + 2] & 0xff;
928 switch (ir->buf_in[index]) {
929 /* the one and only 5-byte return value command */
930 case MCE_RSP_GETPORTSTATUS:
931 if ((ir->buf_in[index + 4] & 0xff) == 0x00)
932 ir->txports_cabled |= 1 << hi;
935 /* 2-byte return value commands */
936 case MCE_RSP_EQIRTIMEOUT:
937 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);
939 case MCE_RSP_EQIRNUMPORTS:
940 ir->num_txports = hi;
941 ir->num_rxports = lo;
944 /* 1-byte return value commands */
945 case MCE_RSP_EQEMVER:
948 case MCE_RSP_EQIRTXPORTS:
951 case MCE_RSP_EQIRRXPORTEN:
952 ir->learning_enabled = ((hi & 0x02) == 0x02);
953 ir->rxports_active = hi;
955 case MCE_RSP_CMD_ILLEGAL:
956 ir->need_reset = true;
963 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
965 DEFINE_IR_RAW_EVENT(rawir);
968 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
969 if (ir->flags.microsoft_gen1)
972 /* if there's no data, just return now */
976 for (; i < buf_len; i++) {
977 switch (ir->parser_state) {
979 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
980 mceusb_dev_printdata(ir, ir->buf_in, i - 1,
982 mceusb_handle_command(ir, i);
983 ir->parser_state = CMD_DATA;
987 init_ir_raw_event(&rawir);
988 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
989 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
990 * US_TO_NS(MCE_TIME_UNIT);
992 mce_dbg(ir->dev, "Storing %s with duration %d\n",
993 rawir.pulse ? "pulse" : "space",
996 ir_raw_event_store_with_filter(ir->rc, &rawir);
1002 /* decode mce packets of the form (84),AA,BB,CC,DD */
1003 /* IR data packets can span USB messages - rem */
1004 ir->cmd = ir->buf_in[i];
1005 if ((ir->cmd == MCE_CMD_PORT_IR) ||
1006 ((ir->cmd & MCE_PORT_MASK) !=
1007 MCE_COMMAND_IRDATA)) {
1008 ir->parser_state = SUBCMD;
1011 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
1012 mceusb_dev_printdata(ir, ir->buf_in,
1013 i, ir->rem + 1, false);
1015 ir->parser_state = PARSE_IRDATA;
1017 ir_raw_event_reset(ir->rc);
1021 if (ir->parser_state != CMD_HEADER && !ir->rem)
1022 ir->parser_state = CMD_HEADER;
1024 mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
1025 ir_raw_event_handle(ir->rc);
1028 static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
1030 struct mceusb_dev *ir;
1038 usb_unlink_urb(urb);
1042 buf_len = urb->actual_length;
1044 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
1045 ir->send_flags = SEND_FLAG_COMPLETE;
1046 mce_dbg(ir->dev, "setup answer received %d bytes\n",
1050 switch (urb->status) {
1053 mceusb_process_ir_data(ir, buf_len);
1059 usb_unlink_urb(urb);
1064 mce_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
1068 usb_submit_urb(urb, GFP_ATOMIC);
1071 static void mceusb_get_emulator_version(struct mceusb_dev *ir)
1073 /* If we get no reply or an illegal command reply, its ver 1, says MS */
1075 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER));
1078 static void mceusb_gen1_init(struct mceusb_dev *ir)
1081 struct device *dev = ir->dev;
1084 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
1086 dev_err(dev, "%s: memory allocation failed!\n", __func__);
1091 * This is a strange one. Windows issues a set address to the device
1092 * on the receive control pipe and expect a certain value pair back
1094 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
1095 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
1096 data, USB_CTRL_MSG_SZ, HZ * 3);
1097 mce_dbg(dev, "%s - ret = %d\n", __func__, ret);
1098 mce_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
1099 __func__, data[0], data[1]);
1101 /* set feature: bit rate 38400 bps */
1102 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1103 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
1104 0xc04e, 0x0000, NULL, 0, HZ * 3);
1106 mce_dbg(dev, "%s - ret = %d\n", __func__, ret);
1108 /* bRequest 4: set char length to 8 bits */
1109 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1111 0x0808, 0x0000, NULL, 0, HZ * 3);
1112 mce_dbg(dev, "%s - retB = %d\n", __func__, ret);
1114 /* bRequest 2: set handshaking to use DTR/DSR */
1115 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1117 0x0000, 0x0100, NULL, 0, HZ * 3);
1118 mce_dbg(dev, "%s - retC = %d\n", __func__, ret);
1121 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
1123 /* get hw/sw revision? */
1124 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1129 static void mceusb_gen2_init(struct mceusb_dev *ir)
1132 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
1134 /* get hw/sw revision? */
1135 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1137 /* get wake version (protocol, key, address) */
1138 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION));
1140 /* unknown what this one actually returns... */
1141 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
1144 static void mceusb_get_parameters(struct mceusb_dev *ir)
1147 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS,
1148 MCE_CMD_GETPORTSTATUS, 0x00 };
1150 /* defaults, if the hardware doesn't support querying */
1151 ir->num_txports = 2;
1152 ir->num_rxports = 2;
1154 /* get number of tx and rx ports */
1155 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS));
1157 /* get the carrier and frequency */
1158 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
1160 if (ir->num_txports && !ir->flags.no_tx)
1161 /* get the transmitter bitmask */
1162 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
1164 /* get receiver timeout value */
1165 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
1167 /* get receiver sensor setting */
1168 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
1170 for (i = 0; i < ir->num_txports; i++) {
1172 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1176 static void mceusb_flash_led(struct mceusb_dev *ir)
1181 mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED));
1184 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
1186 struct device *dev = ir->dev;
1190 rc = rc_allocate_device();
1192 dev_err(dev, "remote dev allocation failed\n");
1196 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
1197 mceusb_model[ir->model].name ?
1198 mceusb_model[ir->model].name :
1199 "Media Center Ed. eHome Infrared Remote Transceiver",
1200 le16_to_cpu(ir->usbdev->descriptor.idVendor),
1201 le16_to_cpu(ir->usbdev->descriptor.idProduct));
1203 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
1205 rc->input_name = ir->name;
1206 rc->input_phys = ir->phys;
1207 usb_to_input_id(ir->usbdev, &rc->input_id);
1208 rc->dev.parent = dev;
1210 rc->driver_type = RC_DRIVER_IR_RAW;
1211 rc->allowed_protos = RC_TYPE_ALL;
1212 rc->timeout = MS_TO_NS(100);
1213 if (!ir->flags.no_tx) {
1214 rc->s_tx_mask = mceusb_set_tx_mask;
1215 rc->s_tx_carrier = mceusb_set_tx_carrier;
1216 rc->tx_ir = mceusb_tx_ir;
1218 rc->driver_name = DRIVER_NAME;
1219 rc->map_name = mceusb_model[ir->model].rc_map ?
1220 mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE;
1222 ret = rc_register_device(rc);
1224 dev_err(dev, "remote dev registration failed\n");
1235 static int __devinit mceusb_dev_probe(struct usb_interface *intf,
1236 const struct usb_device_id *id)
1238 struct usb_device *dev = interface_to_usbdev(intf);
1239 struct usb_host_interface *idesc;
1240 struct usb_endpoint_descriptor *ep = NULL;
1241 struct usb_endpoint_descriptor *ep_in = NULL;
1242 struct usb_endpoint_descriptor *ep_out = NULL;
1243 struct mceusb_dev *ir = NULL;
1245 char buf[63], name[128] = "";
1246 enum mceusb_model_type model = id->driver_info;
1248 bool is_microsoft_gen1;
1249 bool tx_mask_normal;
1252 mce_dbg(&intf->dev, "%s called\n", __func__);
1254 idesc = intf->cur_altsetting;
1256 is_gen3 = mceusb_model[model].mce_gen3;
1257 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1258 tx_mask_normal = mceusb_model[model].tx_mask_normal;
1259 ir_intfnum = mceusb_model[model].ir_intfnum;
1261 /* There are multi-function devices with non-IR interfaces */
1262 if (idesc->desc.bInterfaceNumber != ir_intfnum)
1265 /* step through the endpoints to find first bulk in and out endpoint */
1266 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1267 ep = &idesc->endpoint[i].desc;
1270 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1272 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1273 == USB_ENDPOINT_XFER_BULK)
1274 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1275 == USB_ENDPOINT_XFER_INT))) {
1278 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
1279 ep_in->bInterval = 1;
1280 mce_dbg(&intf->dev, "acceptable inbound endpoint "
1284 if ((ep_out == NULL)
1285 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1287 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1288 == USB_ENDPOINT_XFER_BULK)
1289 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1290 == USB_ENDPOINT_XFER_INT))) {
1293 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
1294 ep_out->bInterval = 1;
1295 mce_dbg(&intf->dev, "acceptable outbound endpoint "
1299 if (ep_in == NULL) {
1300 mce_dbg(&intf->dev, "inbound and/or endpoint not found\n");
1304 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1305 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1307 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1309 goto mem_alloc_fail;
1311 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1313 goto buf_in_alloc_fail;
1315 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1317 goto urb_in_alloc_fail;
1320 ir->dev = &intf->dev;
1322 ir->flags.microsoft_gen1 = is_microsoft_gen1;
1323 ir->flags.tx_mask_normal = tx_mask_normal;
1324 ir->flags.no_tx = mceusb_model[model].no_tx;
1327 /* Saving usb interface data for use by the transmitter routine */
1328 ir->usb_ep_in = ep_in;
1329 ir->usb_ep_out = ep_out;
1331 if (dev->descriptor.iManufacturer
1332 && usb_string(dev, dev->descriptor.iManufacturer,
1333 buf, sizeof(buf)) > 0)
1334 strlcpy(name, buf, sizeof(name));
1335 if (dev->descriptor.iProduct
1336 && usb_string(dev, dev->descriptor.iProduct,
1337 buf, sizeof(buf)) > 0)
1338 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1341 ir->rc = mceusb_init_rc_dev(ir);
1345 /* wire up inbound data handler */
1346 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
1347 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
1348 ir->urb_in->transfer_dma = ir->dma_in;
1349 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1351 /* flush buffers on the device */
1352 mce_dbg(&intf->dev, "Flushing receive buffers\n");
1353 mce_flush_rx_buffer(ir, maxp);
1355 /* figure out which firmware/emulator version this hardware has */
1356 mceusb_get_emulator_version(ir);
1358 /* initialize device */
1359 if (ir->flags.microsoft_gen1)
1360 mceusb_gen1_init(ir);
1362 mceusb_gen2_init(ir);
1364 mceusb_get_parameters(ir);
1366 mceusb_flash_led(ir);
1368 if (!ir->flags.no_tx)
1369 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
1371 usb_set_intfdata(intf, ir);
1373 /* enable wake via this device */
1374 device_set_wakeup_capable(ir->dev, true);
1375 device_set_wakeup_enable(ir->dev, true);
1377 dev_info(&intf->dev, "Registered %s with mce emulator interface "
1378 "version %x\n", name, ir->emver);
1379 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and "
1380 "%x rx sensors (0x%x active)\n",
1381 ir->num_txports, ir->txports_cabled,
1382 ir->num_rxports, ir->rxports_active);
1386 /* Error-handling path */
1388 usb_free_urb(ir->urb_in);
1390 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1394 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1400 static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1402 struct usb_device *dev = interface_to_usbdev(intf);
1403 struct mceusb_dev *ir = usb_get_intfdata(intf);
1405 usb_set_intfdata(intf, NULL);
1411 rc_unregister_device(ir->rc);
1412 usb_kill_urb(ir->urb_in);
1413 usb_free_urb(ir->urb_in);
1414 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1419 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1421 struct mceusb_dev *ir = usb_get_intfdata(intf);
1422 dev_info(ir->dev, "suspend\n");
1423 usb_kill_urb(ir->urb_in);
1427 static int mceusb_dev_resume(struct usb_interface *intf)
1429 struct mceusb_dev *ir = usb_get_intfdata(intf);
1430 dev_info(ir->dev, "resume\n");
1431 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1436 static struct usb_driver mceusb_dev_driver = {
1437 .name = DRIVER_NAME,
1438 .probe = mceusb_dev_probe,
1439 .disconnect = mceusb_dev_disconnect,
1440 .suspend = mceusb_dev_suspend,
1441 .resume = mceusb_dev_resume,
1442 .reset_resume = mceusb_dev_resume,
1443 .id_table = mceusb_dev_table
1446 static int __init mceusb_dev_init(void)
1450 ret = usb_register(&mceusb_dev_driver);
1452 printk(KERN_ERR DRIVER_NAME
1453 ": usb register failed, result = %d\n", ret);
1458 static void __exit mceusb_dev_exit(void)
1460 usb_deregister(&mceusb_dev_driver);
1463 module_init(mceusb_dev_init);
1464 module_exit(mceusb_dev_exit);
1466 MODULE_DESCRIPTION(DRIVER_DESC);
1467 MODULE_AUTHOR(DRIVER_AUTHOR);
1468 MODULE_LICENSE("GPL");
1469 MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1471 module_param(debug, bool, S_IRUGO | S_IWUSR);
1472 MODULE_PARM_DESC(debug, "Debug enabled or not");