2 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
4 * Copyright (c) 2010-2011, 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.
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
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.
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.
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
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>
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 " \
52 #define DRIVER_NAME "mceusb"
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 */
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 */
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
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.
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 */
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 */
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 */
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) */
117 #define MCE_CMD_NOP 0xff /* No operation */
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 */
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 */
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... */
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 */
157 /* module parameters */
158 #ifdef CONFIG_USB_DEBUG
159 static bool debug
= 1;
164 #define mce_dbg(dev, fmt, ...) \
167 dev_info(dev, fmt, ## __VA_ARGS__); \
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
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
203 enum mceusb_model_type
{
204 MCE_GEN2
= 0, /* Most boards */
215 struct mceusb_model
{
219 u32 tx_mask_normal
:1;
224 const char *rc_map
; /* Allow specify a per-board map */
225 const char *name
; /* per-board name */
228 static const struct mceusb_model mceusb_model
[] = {
240 [MCE_GEN2_TX_INV
] = {
250 * In fact, the EVK is shipped without
251 * remotes, but we should have something handy,
252 * to allow testing it
254 .rc_map
= RC_MAP_HAUPPAUGE
,
255 .name
= "Conexant Hybrid TV (cx231xx) MCE IR",
258 .no_tx
= 1, /* tx isn't wired up at all */
259 .name
= "Conexant Hybrid TV (cx231xx) MCE IR",
267 .rc_map
= RC_MAP_TIVO
,
271 static 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) },
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 /* Formosa Industrial Computing */
365 { USB_DEVICE(VENDOR_FORMOSA
, 0xe042) },
366 /* Fintek eHome Infrared Transceiver (HP branded) */
367 { USB_DEVICE(VENDOR_FINTEK
, 0x5168) },
368 /* Fintek eHome Infrared Transceiver */
369 { USB_DEVICE(VENDOR_FINTEK
, 0x0602) },
370 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
371 { USB_DEVICE(VENDOR_FINTEK
, 0x0702) },
372 /* Pinnacle Remote Kit */
373 { USB_DEVICE(VENDOR_PINNACLE
, 0x0225),
374 .driver_info
= MCE_GEN3
},
375 /* Elitegroup Computer Systems IR */
376 { USB_DEVICE(VENDOR_ECS
, 0x0f38) },
377 /* Wistron Corp. eHome Infrared Receiver */
378 { USB_DEVICE(VENDOR_WISTRON
, 0x0002) },
380 { USB_DEVICE(VENDOR_COMPRO
, 0x3020) },
382 { USB_DEVICE(VENDOR_COMPRO
, 0x3082) },
383 /* Northstar Systems, Inc. eHome Infrared Transceiver */
384 { USB_DEVICE(VENDOR_NORTHSTAR
, 0xe004) },
385 /* TiVo PC IR Receiver */
386 { USB_DEVICE(VENDOR_TIVO
, 0x2000),
387 .driver_info
= TIVO_KIT
},
388 /* Conexant Hybrid TV "Shelby" Polaris SDK */
389 { USB_DEVICE(VENDOR_CONEXANT
, 0x58a1),
390 .driver_info
= POLARIS_EVK
},
391 /* Conexant Hybrid TV RDU253S Polaris */
392 { USB_DEVICE(VENDOR_CONEXANT
, 0x58a5),
393 .driver_info
= CX_HYBRID_TV
},
394 /* Terminating entry */
398 /* data structure for each usb transceiver */
403 /* optional features we can enable */
404 bool carrier_report_enabled
;
405 bool learning_enabled
;
407 /* core device bits */
411 struct usb_device
*usbdev
;
413 struct usb_endpoint_descriptor
*usb_ep_in
;
414 struct usb_endpoint_descriptor
*usb_ep_out
;
416 /* buffers and dma */
417 unsigned char *buf_in
;
429 u8 cmd
, rem
; /* Remaining IR data bytes in packet */
433 u32 tx_mask_normal
:1;
434 u32 microsoft_gen1
:1;
438 /* transmit support */
441 unsigned char tx_mask
;
445 enum mceusb_model_type model
;
447 bool need_reset
; /* flag to issue a device resume cmd */
448 u8 emver
; /* emulator interface version */
449 u8 num_txports
; /* number of transmit ports */
450 u8 num_rxports
; /* number of receive sensors */
451 u8 txports_cabled
; /* bitmask of transmitters with cable */
452 u8 rxports_active
; /* bitmask of active receive sensors */
455 /* MCE Device Command Strings, generally a port and command pair */
456 static char DEVICE_RESUME
[] = {MCE_CMD_NULL
, MCE_CMD_PORT_SYS
,
458 static char GET_REVISION
[] = {MCE_CMD_PORT_SYS
, MCE_CMD_G_REVISION
};
459 static char GET_EMVER
[] = {MCE_CMD_PORT_SYS
, MCE_CMD_GETEMVER
};
460 static char GET_WAKEVERSION
[] = {MCE_CMD_PORT_SYS
, MCE_CMD_GETWAKEVERSION
};
461 static char FLASH_LED
[] = {MCE_CMD_PORT_SYS
, MCE_CMD_FLASHLED
};
462 static char GET_UNKNOWN2
[] = {MCE_CMD_PORT_IR
, MCE_CMD_UNKNOWN2
};
463 static char GET_CARRIER_FREQ
[] = {MCE_CMD_PORT_IR
, MCE_CMD_GETIRCFS
};
464 static char GET_RX_TIMEOUT
[] = {MCE_CMD_PORT_IR
, MCE_CMD_GETIRTIMEOUT
};
465 static char GET_NUM_PORTS
[] = {MCE_CMD_PORT_IR
, MCE_CMD_GETIRNUMPORTS
};
466 static char GET_TX_BITMASK
[] = {MCE_CMD_PORT_IR
, MCE_CMD_GETIRTXPORTS
};
467 static char GET_RX_SENSOR
[] = {MCE_CMD_PORT_IR
, MCE_CMD_GETIRRXPORTEN
};
468 /* sub in desired values in lower byte or bytes for full command */
469 /* FIXME: make use of these for transmit.
470 static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR,
471 MCE_CMD_SETIRCFS, 0x00, 0x00};
472 static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00};
473 static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR,
474 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00};
475 static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR,
476 MCE_RSP_EQIRRXPORTEN, 0x00};
479 static int mceusb_cmdsize(u8 cmd
, u8 subcmd
)
485 if (subcmd
== MCE_CMD_PORT_SYS
)
488 case MCE_CMD_PORT_SYS
:
490 case MCE_RSP_EQWAKEVERSION
:
493 case MCE_CMD_G_REVISION
:
496 case MCE_RSP_EQWAKESUPPORT
:
500 case MCE_CMD_PORT_IR
:
502 case MCE_CMD_UNKNOWN
:
503 case MCE_RSP_EQIRCFS
:
504 case MCE_RSP_EQIRTIMEOUT
:
505 case MCE_RSP_EQIRRXCFCNT
:
508 case MCE_CMD_SIG_END
:
509 case MCE_RSP_EQIRTXPORTS
:
510 case MCE_RSP_EQIRRXPORTEN
:
518 static void mceusb_dev_printdata(struct mceusb_dev
*ir
, char *buf
,
519 int offset
, int len
, bool out
)
521 char codes
[USB_BUFLEN
* 3 + 1];
523 u8 cmd
, subcmd
, data1
, data2
, data3
, data4
;
524 struct device
*dev
= ir
->dev
;
525 int i
, start
, skip
= 0;
531 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
532 if (ir
->flags
.microsoft_gen1
&& !out
&& !offset
)
538 for (i
= 0; i
< len
&& i
< USB_BUFLEN
; i
++)
539 snprintf(codes
+ i
* 3, 4, "%02x ", buf
[i
+ offset
] & 0xff);
541 dev_info(dev
, "%sx data: %s(length=%d)\n",
542 (out
? "t" : "r"), codes
, len
);
545 strcpy(inout
, "Request\0");
547 strcpy(inout
, "Got\0");
549 start
= offset
+ skip
;
550 cmd
= buf
[start
] & 0xff;
551 subcmd
= buf
[start
+ 1] & 0xff;
552 data1
= buf
[start
+ 2] & 0xff;
553 data2
= buf
[start
+ 3] & 0xff;
554 data3
= buf
[start
+ 4] & 0xff;
555 data4
= buf
[start
+ 5] & 0xff;
559 if (subcmd
== MCE_CMD_NULL
)
561 if ((subcmd
== MCE_CMD_PORT_SYS
) &&
562 (data1
== MCE_CMD_RESUME
))
563 dev_info(dev
, "Device resume requested\n");
565 dev_info(dev
, "Unknown command 0x%02x 0x%02x\n",
568 case MCE_CMD_PORT_SYS
:
570 case MCE_RSP_EQEMVER
:
572 dev_info(dev
, "Emulator interface version %x\n",
575 case MCE_CMD_G_REVISION
:
577 dev_info(dev
, "Get hw/sw rev?\n");
579 dev_info(dev
, "hw/sw rev 0x%02x 0x%02x "
580 "0x%02x 0x%02x\n", data1
, data2
,
581 buf
[start
+ 4], buf
[start
+ 5]);
584 dev_info(dev
, "Device resume requested\n");
586 case MCE_RSP_CMD_ILLEGAL
:
587 dev_info(dev
, "Illegal PORT_SYS command\n");
589 case MCE_RSP_EQWAKEVERSION
:
591 dev_info(dev
, "Wake version, proto: 0x%02x, "
592 "payload: 0x%02x, address: 0x%02x, "
594 data1
, data2
, data3
, data4
);
596 case MCE_RSP_GETPORTSTATUS
:
598 /* We use data1 + 1 here, to match hw labels */
599 dev_info(dev
, "TX port %d: blaster is%s connected\n",
600 data1
+ 1, data4
? " not" : "");
602 case MCE_CMD_FLASHLED
:
603 dev_info(dev
, "Attempting to flash LED\n");
606 dev_info(dev
, "Unknown command 0x%02x 0x%02x\n",
611 case MCE_CMD_PORT_IR
:
613 case MCE_CMD_SIG_END
:
614 dev_info(dev
, "End of signal\n");
617 dev_info(dev
, "Ping\n");
619 case MCE_CMD_UNKNOWN
:
620 dev_info(dev
, "Resp to 9f 05 of 0x%02x 0x%02x\n",
623 case MCE_RSP_EQIRCFS
:
624 period
= DIV_ROUND_CLOSEST(
625 (1 << data1
* 2) * (data2
+ 1), 10);
628 carrier
= (1000 * 1000) / period
;
629 dev_info(dev
, "%s carrier of %u Hz (period %uus)\n",
630 inout
, carrier
, period
);
632 case MCE_CMD_GETIRCFS
:
633 dev_info(dev
, "Get carrier mode and freq\n");
635 case MCE_RSP_EQIRTXPORTS
:
636 dev_info(dev
, "%s transmit blaster mask of 0x%02x\n",
639 case MCE_RSP_EQIRTIMEOUT
:
640 /* value is in units of 50us, so x*50/1000 ms */
641 period
= ((data1
<< 8) | data2
) * MCE_TIME_UNIT
/ 1000;
642 dev_info(dev
, "%s receive timeout of %d ms\n",
645 case MCE_CMD_GETIRTIMEOUT
:
646 dev_info(dev
, "Get receive timeout\n");
648 case MCE_CMD_GETIRTXPORTS
:
649 dev_info(dev
, "Get transmit blaster mask\n");
651 case MCE_RSP_EQIRRXPORTEN
:
652 dev_info(dev
, "%s %s-range receive sensor in use\n",
653 inout
, data1
== 0x02 ? "short" : "long");
655 case MCE_CMD_GETIRRXPORTEN
:
656 /* aka MCE_RSP_EQIRRXCFCNT */
658 dev_info(dev
, "Get receive sensor\n");
659 else if (ir
->learning_enabled
)
660 dev_info(dev
, "RX pulse count: %d\n",
661 ((data1
<< 8) | data2
));
663 case MCE_RSP_EQIRNUMPORTS
:
666 dev_info(dev
, "Num TX ports: %x, num RX ports: %x\n",
669 case MCE_RSP_CMD_ILLEGAL
:
670 dev_info(dev
, "Illegal PORT_IR command\n");
673 dev_info(dev
, "Unknown command 0x%02x 0x%02x\n",
682 if (cmd
== MCE_IRDATA_TRAILER
)
683 dev_info(dev
, "End of raw IR data\n");
684 else if ((cmd
!= MCE_CMD_PORT_IR
) &&
685 ((cmd
& MCE_PORT_MASK
) == MCE_COMMAND_IRDATA
))
686 dev_info(dev
, "Raw IR data, %d pulse/space samples\n", ir
->rem
);
689 static void mce_async_callback(struct urb
*urb
, struct pt_regs
*regs
)
691 struct mceusb_dev
*ir
;
699 len
= urb
->actual_length
;
701 mceusb_dev_printdata(ir
, urb
->transfer_buffer
, 0, len
, true);
704 /* the transfer buffer and urb were allocated in mce_request_packet */
705 kfree(urb
->transfer_buffer
);
709 /* request incoming or send outgoing usb packet - used to initialize remote */
710 static void mce_request_packet(struct mceusb_dev
*ir
, unsigned char *data
,
711 int size
, int urb_type
)
714 struct urb
*async_urb
;
715 struct device
*dev
= ir
->dev
;
716 unsigned char *async_buf
;
718 if (urb_type
== MCEUSB_TX
) {
719 async_urb
= usb_alloc_urb(0, GFP_KERNEL
);
720 if (unlikely(!async_urb
)) {
721 dev_err(dev
, "Error, couldn't allocate urb!\n");
725 async_buf
= kzalloc(size
, GFP_KERNEL
);
727 dev_err(dev
, "Error, couldn't allocate buf!\n");
728 usb_free_urb(async_urb
);
733 pipe
= usb_sndintpipe(ir
->usbdev
,
734 ir
->usb_ep_out
->bEndpointAddress
);
735 usb_fill_int_urb(async_urb
, ir
->usbdev
, pipe
,
736 async_buf
, size
, (usb_complete_t
)mce_async_callback
,
737 ir
, ir
->usb_ep_out
->bInterval
);
738 memcpy(async_buf
, data
, size
);
740 } else if (urb_type
== MCEUSB_RX
) {
741 /* standard request */
742 async_urb
= ir
->urb_in
;
743 ir
->send_flags
= RECV_FLAG_IN_PROGRESS
;
746 dev_err(dev
, "Error! Unknown urb type %d\n", urb_type
);
750 mce_dbg(dev
, "receive request called (size=%#x)\n", size
);
752 async_urb
->transfer_buffer_length
= size
;
753 async_urb
->dev
= ir
->usbdev
;
755 res
= usb_submit_urb(async_urb
, GFP_ATOMIC
);
757 mce_dbg(dev
, "receive request FAILED! (res=%d)\n", res
);
760 mce_dbg(dev
, "receive request complete (res=%d)\n", res
);
763 static void mce_async_out(struct mceusb_dev
*ir
, unsigned char *data
, int size
)
765 int rsize
= sizeof(DEVICE_RESUME
);
767 if (ir
->need_reset
) {
768 ir
->need_reset
= false;
769 mce_request_packet(ir
, DEVICE_RESUME
, rsize
, MCEUSB_TX
);
773 mce_request_packet(ir
, data
, size
, MCEUSB_TX
);
777 static void mce_flush_rx_buffer(struct mceusb_dev
*ir
, int size
)
779 mce_request_packet(ir
, NULL
, size
, MCEUSB_RX
);
782 /* Send data out the IR blaster port(s) */
783 static int mceusb_tx_ir(struct rc_dev
*dev
, unsigned *txbuf
, unsigned count
)
785 struct mceusb_dev
*ir
= dev
->priv
;
788 unsigned char *cmdbuf
; /* MCE command buffer */
789 long signal_duration
= 0; /* Singnal length in us */
790 struct timeval start_time
, end_time
;
792 do_gettimeofday(&start_time
);
794 cmdbuf
= kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE
, GFP_KERNEL
);
798 /* MCE tx init header */
799 cmdbuf
[cmdcount
++] = MCE_CMD_PORT_IR
;
800 cmdbuf
[cmdcount
++] = MCE_CMD_SETIRTXPORTS
;
801 cmdbuf
[cmdcount
++] = ir
->tx_mask
;
803 /* Generate mce packet data */
804 for (i
= 0; (i
< count
) && (cmdcount
< MCE_CMDBUF_SIZE
); i
++) {
805 signal_duration
+= txbuf
[i
];
806 txbuf
[i
] = txbuf
[i
] / MCE_TIME_UNIT
;
808 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
810 /* Insert mce packet header every 4th entry */
811 if ((cmdcount
< MCE_CMDBUF_SIZE
) &&
812 (cmdcount
- MCE_TX_HEADER_LENGTH
) %
813 MCE_CODE_LENGTH
== 0)
814 cmdbuf
[cmdcount
++] = MCE_IRDATA_HEADER
;
816 /* Insert mce packet data */
817 if (cmdcount
< MCE_CMDBUF_SIZE
)
819 (txbuf
[i
] < MCE_PULSE_BIT
?
820 txbuf
[i
] : MCE_MAX_PULSE_LENGTH
) |
821 (i
& 1 ? 0x00 : MCE_PULSE_BIT
);
827 } while ((txbuf
[i
] > MCE_MAX_PULSE_LENGTH
) &&
828 (txbuf
[i
] -= MCE_MAX_PULSE_LENGTH
));
831 /* Fix packet length in last header */
832 cmdbuf
[cmdcount
- (cmdcount
- MCE_TX_HEADER_LENGTH
) % MCE_CODE_LENGTH
] =
833 MCE_COMMAND_IRDATA
+ (cmdcount
- MCE_TX_HEADER_LENGTH
) %
836 /* Check if we have room for the empty packet at the end */
837 if (cmdcount
>= MCE_CMDBUF_SIZE
) {
842 /* All mce commands end with an empty packet (0x80) */
843 cmdbuf
[cmdcount
++] = MCE_IRDATA_TRAILER
;
845 /* Transmit the command to the mce device */
846 mce_async_out(ir
, cmdbuf
, cmdcount
);
849 * The lircd gap calculation expects the write function to
850 * wait the time it takes for the ircommand to be sent before
853 do_gettimeofday(&end_time
);
854 signal_duration
-= (end_time
.tv_usec
- start_time
.tv_usec
) +
855 (end_time
.tv_sec
- start_time
.tv_sec
) * 1000000;
857 /* delay with the closest number of ticks */
858 set_current_state(TASK_INTERRUPTIBLE
);
859 schedule_timeout(usecs_to_jiffies(signal_duration
));
863 return ret
? ret
: count
;
866 /* Sets active IR outputs -- mce devices typically have two */
867 static int mceusb_set_tx_mask(struct rc_dev
*dev
, u32 mask
)
869 struct mceusb_dev
*ir
= dev
->priv
;
871 if (ir
->flags
.tx_mask_normal
)
874 ir
->tx_mask
= (mask
!= MCE_DEFAULT_TX_MASK
?
875 mask
^ MCE_DEFAULT_TX_MASK
: mask
) << 1;
880 /* Sets the send carrier frequency and mode */
881 static int mceusb_set_tx_carrier(struct rc_dev
*dev
, u32 carrier
)
883 struct mceusb_dev
*ir
= dev
->priv
;
885 int prescaler
= 0, divisor
= 0;
886 unsigned char cmdbuf
[4] = { MCE_CMD_PORT_IR
,
887 MCE_CMD_SETIRCFS
, 0x00, 0x00 };
889 /* Carrier has changed */
890 if (ir
->carrier
!= carrier
) {
893 ir
->carrier
= carrier
;
894 cmdbuf
[2] = MCE_CMD_SIG_END
;
895 cmdbuf
[3] = MCE_IRDATA_TRAILER
;
896 mce_dbg(ir
->dev
, "%s: disabling carrier "
897 "modulation\n", __func__
);
898 mce_async_out(ir
, cmdbuf
, sizeof(cmdbuf
));
902 for (prescaler
= 0; prescaler
< 4; ++prescaler
) {
903 divisor
= (clk
>> (2 * prescaler
)) / carrier
;
904 if (divisor
<= 0xff) {
905 ir
->carrier
= carrier
;
906 cmdbuf
[2] = prescaler
;
908 mce_dbg(ir
->dev
, "%s: requesting %u HZ "
909 "carrier\n", __func__
, carrier
);
911 /* Transmit new carrier to mce device */
912 mce_async_out(ir
, cmdbuf
, sizeof(cmdbuf
));
925 * We don't do anything but print debug spew for many of the command bits
926 * we receive from the hardware, but some of them are useful information
927 * we want to store so that we can use them.
929 static void mceusb_handle_command(struct mceusb_dev
*ir
, int index
)
931 u8 hi
= ir
->buf_in
[index
+ 1] & 0xff;
932 u8 lo
= ir
->buf_in
[index
+ 2] & 0xff;
934 switch (ir
->buf_in
[index
]) {
935 /* the one and only 5-byte return value command */
936 case MCE_RSP_GETPORTSTATUS
:
937 if ((ir
->buf_in
[index
+ 4] & 0xff) == 0x00)
938 ir
->txports_cabled
|= 1 << hi
;
941 /* 2-byte return value commands */
942 case MCE_RSP_EQIRTIMEOUT
:
943 ir
->rc
->timeout
= US_TO_NS((hi
<< 8 | lo
) * MCE_TIME_UNIT
);
945 case MCE_RSP_EQIRNUMPORTS
:
946 ir
->num_txports
= hi
;
947 ir
->num_rxports
= lo
;
950 /* 1-byte return value commands */
951 case MCE_RSP_EQEMVER
:
954 case MCE_RSP_EQIRTXPORTS
:
957 case MCE_RSP_EQIRRXPORTEN
:
958 ir
->learning_enabled
= ((hi
& 0x02) == 0x02);
959 ir
->rxports_active
= hi
;
961 case MCE_RSP_CMD_ILLEGAL
:
962 ir
->need_reset
= true;
969 static void mceusb_process_ir_data(struct mceusb_dev
*ir
, int buf_len
)
971 DEFINE_IR_RAW_EVENT(rawir
);
974 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
975 if (ir
->flags
.microsoft_gen1
)
978 /* if there's no data, just return now */
982 for (; i
< buf_len
; i
++) {
983 switch (ir
->parser_state
) {
985 ir
->rem
= mceusb_cmdsize(ir
->cmd
, ir
->buf_in
[i
]);
986 mceusb_dev_printdata(ir
, ir
->buf_in
, i
- 1,
988 mceusb_handle_command(ir
, i
);
989 ir
->parser_state
= CMD_DATA
;
993 init_ir_raw_event(&rawir
);
994 rawir
.pulse
= ((ir
->buf_in
[i
] & MCE_PULSE_BIT
) != 0);
995 rawir
.duration
= (ir
->buf_in
[i
] & MCE_PULSE_MASK
)
996 * US_TO_NS(MCE_TIME_UNIT
);
998 mce_dbg(ir
->dev
, "Storing %s with duration %d\n",
999 rawir
.pulse
? "pulse" : "space",
1002 ir_raw_event_store_with_filter(ir
->rc
, &rawir
);
1008 /* decode mce packets of the form (84),AA,BB,CC,DD */
1009 /* IR data packets can span USB messages - rem */
1010 ir
->cmd
= ir
->buf_in
[i
];
1011 if ((ir
->cmd
== MCE_CMD_PORT_IR
) ||
1012 ((ir
->cmd
& MCE_PORT_MASK
) !=
1013 MCE_COMMAND_IRDATA
)) {
1014 ir
->parser_state
= SUBCMD
;
1017 ir
->rem
= (ir
->cmd
& MCE_PACKET_LENGTH_MASK
);
1018 mceusb_dev_printdata(ir
, ir
->buf_in
,
1019 i
, ir
->rem
+ 1, false);
1021 ir
->parser_state
= PARSE_IRDATA
;
1023 ir_raw_event_reset(ir
->rc
);
1027 if (ir
->parser_state
!= CMD_HEADER
&& !ir
->rem
)
1028 ir
->parser_state
= CMD_HEADER
;
1030 mce_dbg(ir
->dev
, "processed IR data, calling ir_raw_event_handle\n");
1031 ir_raw_event_handle(ir
->rc
);
1034 static void mceusb_dev_recv(struct urb
*urb
, struct pt_regs
*regs
)
1036 struct mceusb_dev
*ir
;
1044 usb_unlink_urb(urb
);
1048 buf_len
= urb
->actual_length
;
1050 if (ir
->send_flags
== RECV_FLAG_IN_PROGRESS
) {
1051 ir
->send_flags
= SEND_FLAG_COMPLETE
;
1052 mce_dbg(ir
->dev
, "setup answer received %d bytes\n",
1056 switch (urb
->status
) {
1059 mceusb_process_ir_data(ir
, buf_len
);
1065 usb_unlink_urb(urb
);
1070 mce_dbg(ir
->dev
, "Error: urb status = %d\n", urb
->status
);
1074 usb_submit_urb(urb
, GFP_ATOMIC
);
1077 static void mceusb_get_emulator_version(struct mceusb_dev
*ir
)
1079 /* If we get no reply or an illegal command reply, its ver 1, says MS */
1081 mce_async_out(ir
, GET_EMVER
, sizeof(GET_EMVER
));
1084 static void mceusb_gen1_init(struct mceusb_dev
*ir
)
1087 struct device
*dev
= ir
->dev
;
1090 data
= kzalloc(USB_CTRL_MSG_SZ
, GFP_KERNEL
);
1092 dev_err(dev
, "%s: memory allocation failed!\n", __func__
);
1097 * This is a strange one. Windows issues a set address to the device
1098 * on the receive control pipe and expect a certain value pair back
1100 ret
= usb_control_msg(ir
->usbdev
, usb_rcvctrlpipe(ir
->usbdev
, 0),
1101 USB_REQ_SET_ADDRESS
, USB_TYPE_VENDOR
, 0, 0,
1102 data
, USB_CTRL_MSG_SZ
, HZ
* 3);
1103 mce_dbg(dev
, "%s - ret = %d\n", __func__
, ret
);
1104 mce_dbg(dev
, "%s - data[0] = %d, data[1] = %d\n",
1105 __func__
, data
[0], data
[1]);
1107 /* set feature: bit rate 38400 bps */
1108 ret
= usb_control_msg(ir
->usbdev
, usb_sndctrlpipe(ir
->usbdev
, 0),
1109 USB_REQ_SET_FEATURE
, USB_TYPE_VENDOR
,
1110 0xc04e, 0x0000, NULL
, 0, HZ
* 3);
1112 mce_dbg(dev
, "%s - ret = %d\n", __func__
, ret
);
1114 /* bRequest 4: set char length to 8 bits */
1115 ret
= usb_control_msg(ir
->usbdev
, usb_sndctrlpipe(ir
->usbdev
, 0),
1117 0x0808, 0x0000, NULL
, 0, HZ
* 3);
1118 mce_dbg(dev
, "%s - retB = %d\n", __func__
, ret
);
1120 /* bRequest 2: set handshaking to use DTR/DSR */
1121 ret
= usb_control_msg(ir
->usbdev
, usb_sndctrlpipe(ir
->usbdev
, 0),
1123 0x0000, 0x0100, NULL
, 0, HZ
* 3);
1124 mce_dbg(dev
, "%s - retC = %d\n", __func__
, ret
);
1127 mce_async_out(ir
, DEVICE_RESUME
, sizeof(DEVICE_RESUME
));
1129 /* get hw/sw revision? */
1130 mce_async_out(ir
, GET_REVISION
, sizeof(GET_REVISION
));
1135 static void mceusb_gen2_init(struct mceusb_dev
*ir
)
1138 mce_async_out(ir
, DEVICE_RESUME
, sizeof(DEVICE_RESUME
));
1140 /* get hw/sw revision? */
1141 mce_async_out(ir
, GET_REVISION
, sizeof(GET_REVISION
));
1143 /* get wake version (protocol, key, address) */
1144 mce_async_out(ir
, GET_WAKEVERSION
, sizeof(GET_WAKEVERSION
));
1146 /* unknown what this one actually returns... */
1147 mce_async_out(ir
, GET_UNKNOWN2
, sizeof(GET_UNKNOWN2
));
1150 static void mceusb_get_parameters(struct mceusb_dev
*ir
)
1153 unsigned char cmdbuf
[3] = { MCE_CMD_PORT_SYS
,
1154 MCE_CMD_GETPORTSTATUS
, 0x00 };
1156 /* defaults, if the hardware doesn't support querying */
1157 ir
->num_txports
= 2;
1158 ir
->num_rxports
= 2;
1160 /* get number of tx and rx ports */
1161 mce_async_out(ir
, GET_NUM_PORTS
, sizeof(GET_NUM_PORTS
));
1163 /* get the carrier and frequency */
1164 mce_async_out(ir
, GET_CARRIER_FREQ
, sizeof(GET_CARRIER_FREQ
));
1166 if (ir
->num_txports
&& !ir
->flags
.no_tx
)
1167 /* get the transmitter bitmask */
1168 mce_async_out(ir
, GET_TX_BITMASK
, sizeof(GET_TX_BITMASK
));
1170 /* get receiver timeout value */
1171 mce_async_out(ir
, GET_RX_TIMEOUT
, sizeof(GET_RX_TIMEOUT
));
1173 /* get receiver sensor setting */
1174 mce_async_out(ir
, GET_RX_SENSOR
, sizeof(GET_RX_SENSOR
));
1176 for (i
= 0; i
< ir
->num_txports
; i
++) {
1178 mce_async_out(ir
, cmdbuf
, sizeof(cmdbuf
));
1182 static void mceusb_flash_led(struct mceusb_dev
*ir
)
1187 mce_async_out(ir
, FLASH_LED
, sizeof(FLASH_LED
));
1190 static struct rc_dev
*mceusb_init_rc_dev(struct mceusb_dev
*ir
)
1192 struct device
*dev
= ir
->dev
;
1196 rc
= rc_allocate_device();
1198 dev_err(dev
, "remote dev allocation failed\n");
1202 snprintf(ir
->name
, sizeof(ir
->name
), "%s (%04x:%04x)",
1203 mceusb_model
[ir
->model
].name
?
1204 mceusb_model
[ir
->model
].name
:
1205 "Media Center Ed. eHome Infrared Remote Transceiver",
1206 le16_to_cpu(ir
->usbdev
->descriptor
.idVendor
),
1207 le16_to_cpu(ir
->usbdev
->descriptor
.idProduct
));
1209 usb_make_path(ir
->usbdev
, ir
->phys
, sizeof(ir
->phys
));
1211 rc
->input_name
= ir
->name
;
1212 rc
->input_phys
= ir
->phys
;
1213 usb_to_input_id(ir
->usbdev
, &rc
->input_id
);
1214 rc
->dev
.parent
= dev
;
1216 rc
->driver_type
= RC_DRIVER_IR_RAW
;
1217 rc
->allowed_protos
= RC_TYPE_ALL
;
1218 rc
->timeout
= MS_TO_NS(100);
1219 if (!ir
->flags
.no_tx
) {
1220 rc
->s_tx_mask
= mceusb_set_tx_mask
;
1221 rc
->s_tx_carrier
= mceusb_set_tx_carrier
;
1222 rc
->tx_ir
= mceusb_tx_ir
;
1224 rc
->driver_name
= DRIVER_NAME
;
1225 rc
->map_name
= mceusb_model
[ir
->model
].rc_map
?
1226 mceusb_model
[ir
->model
].rc_map
: RC_MAP_RC6_MCE
;
1228 ret
= rc_register_device(rc
);
1230 dev_err(dev
, "remote dev registration failed\n");
1241 static int __devinit
mceusb_dev_probe(struct usb_interface
*intf
,
1242 const struct usb_device_id
*id
)
1244 struct usb_device
*dev
= interface_to_usbdev(intf
);
1245 struct usb_host_interface
*idesc
;
1246 struct usb_endpoint_descriptor
*ep
= NULL
;
1247 struct usb_endpoint_descriptor
*ep_in
= NULL
;
1248 struct usb_endpoint_descriptor
*ep_out
= NULL
;
1249 struct mceusb_dev
*ir
= NULL
;
1251 char buf
[63], name
[128] = "";
1252 enum mceusb_model_type model
= id
->driver_info
;
1254 bool is_microsoft_gen1
;
1255 bool tx_mask_normal
;
1258 mce_dbg(&intf
->dev
, "%s called\n", __func__
);
1260 idesc
= intf
->cur_altsetting
;
1262 is_gen3
= mceusb_model
[model
].mce_gen3
;
1263 is_microsoft_gen1
= mceusb_model
[model
].mce_gen1
;
1264 tx_mask_normal
= mceusb_model
[model
].tx_mask_normal
;
1265 ir_intfnum
= mceusb_model
[model
].ir_intfnum
;
1267 /* There are multi-function devices with non-IR interfaces */
1268 if (idesc
->desc
.bInterfaceNumber
!= ir_intfnum
)
1271 /* step through the endpoints to find first bulk in and out endpoint */
1272 for (i
= 0; i
< idesc
->desc
.bNumEndpoints
; ++i
) {
1273 ep
= &idesc
->endpoint
[i
].desc
;
1276 && ((ep
->bEndpointAddress
& USB_ENDPOINT_DIR_MASK
)
1278 && (((ep
->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
)
1279 == USB_ENDPOINT_XFER_BULK
)
1280 || ((ep
->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
)
1281 == USB_ENDPOINT_XFER_INT
))) {
1284 ep_in
->bmAttributes
= USB_ENDPOINT_XFER_INT
;
1285 ep_in
->bInterval
= 1;
1286 mce_dbg(&intf
->dev
, "acceptable inbound endpoint "
1290 if ((ep_out
== NULL
)
1291 && ((ep
->bEndpointAddress
& USB_ENDPOINT_DIR_MASK
)
1293 && (((ep
->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
)
1294 == USB_ENDPOINT_XFER_BULK
)
1295 || ((ep
->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
)
1296 == USB_ENDPOINT_XFER_INT
))) {
1299 ep_out
->bmAttributes
= USB_ENDPOINT_XFER_INT
;
1300 ep_out
->bInterval
= 1;
1301 mce_dbg(&intf
->dev
, "acceptable outbound endpoint "
1305 if (ep_in
== NULL
) {
1306 mce_dbg(&intf
->dev
, "inbound and/or endpoint not found\n");
1310 pipe
= usb_rcvintpipe(dev
, ep_in
->bEndpointAddress
);
1311 maxp
= usb_maxpacket(dev
, pipe
, usb_pipeout(pipe
));
1313 ir
= kzalloc(sizeof(struct mceusb_dev
), GFP_KERNEL
);
1315 goto mem_alloc_fail
;
1317 ir
->buf_in
= usb_alloc_coherent(dev
, maxp
, GFP_ATOMIC
, &ir
->dma_in
);
1319 goto buf_in_alloc_fail
;
1321 ir
->urb_in
= usb_alloc_urb(0, GFP_KERNEL
);
1323 goto urb_in_alloc_fail
;
1326 ir
->dev
= &intf
->dev
;
1328 ir
->flags
.microsoft_gen1
= is_microsoft_gen1
;
1329 ir
->flags
.tx_mask_normal
= tx_mask_normal
;
1330 ir
->flags
.no_tx
= mceusb_model
[model
].no_tx
;
1333 /* Saving usb interface data for use by the transmitter routine */
1334 ir
->usb_ep_in
= ep_in
;
1335 ir
->usb_ep_out
= ep_out
;
1337 if (dev
->descriptor
.iManufacturer
1338 && usb_string(dev
, dev
->descriptor
.iManufacturer
,
1339 buf
, sizeof(buf
)) > 0)
1340 strlcpy(name
, buf
, sizeof(name
));
1341 if (dev
->descriptor
.iProduct
1342 && usb_string(dev
, dev
->descriptor
.iProduct
,
1343 buf
, sizeof(buf
)) > 0)
1344 snprintf(name
+ strlen(name
), sizeof(name
) - strlen(name
),
1347 ir
->rc
= mceusb_init_rc_dev(ir
);
1351 /* wire up inbound data handler */
1352 usb_fill_int_urb(ir
->urb_in
, dev
, pipe
, ir
->buf_in
,
1353 maxp
, (usb_complete_t
) mceusb_dev_recv
, ir
, ep_in
->bInterval
);
1354 ir
->urb_in
->transfer_dma
= ir
->dma_in
;
1355 ir
->urb_in
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
1357 /* flush buffers on the device */
1358 mce_dbg(&intf
->dev
, "Flushing receive buffers\n");
1359 mce_flush_rx_buffer(ir
, maxp
);
1361 /* figure out which firmware/emulator version this hardware has */
1362 mceusb_get_emulator_version(ir
);
1364 /* initialize device */
1365 if (ir
->flags
.microsoft_gen1
)
1366 mceusb_gen1_init(ir
);
1368 mceusb_gen2_init(ir
);
1370 mceusb_get_parameters(ir
);
1372 mceusb_flash_led(ir
);
1374 if (!ir
->flags
.no_tx
)
1375 mceusb_set_tx_mask(ir
->rc
, MCE_DEFAULT_TX_MASK
);
1377 usb_set_intfdata(intf
, ir
);
1379 /* enable wake via this device */
1380 device_set_wakeup_capable(ir
->dev
, true);
1381 device_set_wakeup_enable(ir
->dev
, true);
1383 dev_info(&intf
->dev
, "Registered %s with mce emulator interface "
1384 "version %x\n", name
, ir
->emver
);
1385 dev_info(&intf
->dev
, "%x tx ports (0x%x cabled) and "
1386 "%x rx sensors (0x%x active)\n",
1387 ir
->num_txports
, ir
->txports_cabled
,
1388 ir
->num_rxports
, ir
->rxports_active
);
1392 /* Error-handling path */
1394 usb_free_urb(ir
->urb_in
);
1396 usb_free_coherent(dev
, maxp
, ir
->buf_in
, ir
->dma_in
);
1400 dev_err(&intf
->dev
, "%s: device setup failed!\n", __func__
);
1406 static void __devexit
mceusb_dev_disconnect(struct usb_interface
*intf
)
1408 struct usb_device
*dev
= interface_to_usbdev(intf
);
1409 struct mceusb_dev
*ir
= usb_get_intfdata(intf
);
1411 usb_set_intfdata(intf
, NULL
);
1417 rc_unregister_device(ir
->rc
);
1418 usb_kill_urb(ir
->urb_in
);
1419 usb_free_urb(ir
->urb_in
);
1420 usb_free_coherent(dev
, ir
->len_in
, ir
->buf_in
, ir
->dma_in
);
1425 static int mceusb_dev_suspend(struct usb_interface
*intf
, pm_message_t message
)
1427 struct mceusb_dev
*ir
= usb_get_intfdata(intf
);
1428 dev_info(ir
->dev
, "suspend\n");
1429 usb_kill_urb(ir
->urb_in
);
1433 static int mceusb_dev_resume(struct usb_interface
*intf
)
1435 struct mceusb_dev
*ir
= usb_get_intfdata(intf
);
1436 dev_info(ir
->dev
, "resume\n");
1437 if (usb_submit_urb(ir
->urb_in
, GFP_ATOMIC
))
1442 static struct usb_driver mceusb_dev_driver
= {
1443 .name
= DRIVER_NAME
,
1444 .probe
= mceusb_dev_probe
,
1445 .disconnect
= mceusb_dev_disconnect
,
1446 .suspend
= mceusb_dev_suspend
,
1447 .resume
= mceusb_dev_resume
,
1448 .reset_resume
= mceusb_dev_resume
,
1449 .id_table
= mceusb_dev_table
1452 module_usb_driver(mceusb_dev_driver
);
1454 MODULE_DESCRIPTION(DRIVER_DESC
);
1455 MODULE_AUTHOR(DRIVER_AUTHOR
);
1456 MODULE_LICENSE("GPL");
1457 MODULE_DEVICE_TABLE(usb
, mceusb_dev_table
);
1459 module_param(debug
, bool, S_IRUGO
| S_IWUSR
);
1460 MODULE_PARM_DESC(debug
, "Debug enabled or not");