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Merge branches 'for-5.1/upstream-fixes', 'for-5.2/core', 'for-5.2/ish', 'for-5.2...
[mirror_ubuntu-kernels.git] / drivers / media / rc / mceusb.c
1 /*
2 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
3 *
4 * Copyright (c) 2010-2011, Jarod Wilson <jarod@redhat.com>
5 *
6 * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan
7 * Conti, Martin Blatter and Daniel Melander, the latter of which was
8 * in turn also based on the lirc_atiusb driver by Paul Miller. The
9 * two mce drivers were merged into one by Jarod Wilson, with transmit
10 * support for the 1st-gen device added primarily by Patrick Calhoun,
11 * with a bit of tweaks by Jarod. Debugging improvements and proper
12 * support for what appears to be 3rd-gen hardware added by Jarod.
13 * Initial port from lirc driver to ir-core drivery by Jarod, based
14 * partially on a port to an earlier proposed IR infrastructure by
15 * Jon Smirl, which included enhancements and simplifications to the
16 * incoming IR buffer parsing routines.
17 *
18 * Updated in July of 2011 with the aid of Microsoft's official
19 * remote/transceiver requirements and specification document, found at
20 * download.microsoft.com, title
21 * Windows-Media-Center-RC-IR-Collection-Green-Button-Specification-03-08-2011-V2.pdf
22 *
23 *
24 * This program is free software; you can redistribute it and/or modify
25 * it under the terms of the GNU General Public License as published by
26 * the Free Software Foundation; either version 2 of the License, or
27 * (at your option) any later version.
28 *
29 * This program is distributed in the hope that it will be useful,
30 * but WITHOUT ANY WARRANTY; without even the implied warranty of
31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
32 * GNU General Public License for more details.
33 *
34 */
35
36 #include <linux/device.h>
37 #include <linux/module.h>
38 #include <linux/slab.h>
39 #include <linux/workqueue.h>
40 #include <linux/usb.h>
41 #include <linux/usb/input.h>
42 #include <linux/pm_wakeup.h>
43 #include <media/rc-core.h>
44
45 #define DRIVER_VERSION "1.94"
46 #define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>"
47 #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
48 "device driver"
49 #define DRIVER_NAME "mceusb"
50
51 #define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */
52 #define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */
53
54 /* MCE constants */
55 #define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */
56 #define MCE_TIME_UNIT 50 /* Approx 50us resolution */
57 #define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */
58 #define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */
59 #define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */
60 #define MCE_IRDATA_TRAILER 0x80 /* End of IR data */
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 through 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 #define VENDOR_PHILIPS 0x0471
153 #define VENDOR_SMK 0x0609
154 #define VENDOR_TATUNG 0x1460
155 #define VENDOR_GATEWAY 0x107b
156 #define VENDOR_SHUTTLE 0x1308
157 #define VENDOR_SHUTTLE2 0x051c
158 #define VENDOR_MITSUMI 0x03ee
159 #define VENDOR_TOPSEED 0x1784
160 #define VENDOR_RICAVISION 0x179d
161 #define VENDOR_ITRON 0x195d
162 #define VENDOR_FIC 0x1509
163 #define VENDOR_LG 0x043e
164 #define VENDOR_MICROSOFT 0x045e
165 #define VENDOR_FORMOSA 0x147a
166 #define VENDOR_FINTEK 0x1934
167 #define VENDOR_PINNACLE 0x2304
168 #define VENDOR_ECS 0x1019
169 #define VENDOR_WISTRON 0x0fb8
170 #define VENDOR_COMPRO 0x185b
171 #define VENDOR_NORTHSTAR 0x04eb
172 #define VENDOR_REALTEK 0x0bda
173 #define VENDOR_TIVO 0x105a
174 #define VENDOR_CONEXANT 0x0572
175 #define VENDOR_TWISTEDMELON 0x2596
176 #define VENDOR_HAUPPAUGE 0x2040
177 #define VENDOR_PCTV 0x2013
178 #define VENDOR_ADAPTEC 0x03f3
179
180 enum mceusb_model_type {
181 MCE_GEN2 = 0, /* Most boards */
182 MCE_GEN1,
183 MCE_GEN3,
184 MCE_GEN3_BROKEN_IRTIMEOUT,
185 MCE_GEN2_TX_INV,
186 MCE_GEN2_TX_INV_RX_GOOD,
187 POLARIS_EVK,
188 CX_HYBRID_TV,
189 MULTIFUNCTION,
190 TIVO_KIT,
191 MCE_GEN2_NO_TX,
192 HAUPPAUGE_CX_HYBRID_TV,
193 EVROMEDIA_FULL_HYBRID_FULLHD,
194 ASTROMETA_T2HYBRID,
195 };
196
197 struct mceusb_model {
198 u32 mce_gen1:1;
199 u32 mce_gen2:1;
200 u32 mce_gen3:1;
201 u32 tx_mask_normal:1;
202 u32 no_tx:1;
203 u32 broken_irtimeout:1;
204 /*
205 * 2nd IR receiver (short-range, wideband) for learning mode:
206 * 0, absent 2nd receiver (rx2)
207 * 1, rx2 present
208 * 2, rx2 which under counts IR carrier cycles
209 */
210 u32 rx2;
211
212 int ir_intfnum;
213
214 const char *rc_map; /* Allow specify a per-board map */
215 const char *name; /* per-board name */
216 };
217
218 static const struct mceusb_model mceusb_model[] = {
219 [MCE_GEN1] = {
220 .mce_gen1 = 1,
221 .tx_mask_normal = 1,
222 .rx2 = 2,
223 },
224 [MCE_GEN2] = {
225 .mce_gen2 = 1,
226 .rx2 = 2,
227 },
228 [MCE_GEN2_NO_TX] = {
229 .mce_gen2 = 1,
230 .no_tx = 1,
231 },
232 [MCE_GEN2_TX_INV] = {
233 .mce_gen2 = 1,
234 .tx_mask_normal = 1,
235 .rx2 = 1,
236 },
237 [MCE_GEN2_TX_INV_RX_GOOD] = {
238 .mce_gen2 = 1,
239 .tx_mask_normal = 1,
240 .rx2 = 2,
241 },
242 [MCE_GEN3] = {
243 .mce_gen3 = 1,
244 .tx_mask_normal = 1,
245 .rx2 = 2,
246 },
247 [MCE_GEN3_BROKEN_IRTIMEOUT] = {
248 .mce_gen3 = 1,
249 .tx_mask_normal = 1,
250 .rx2 = 2,
251 .broken_irtimeout = 1
252 },
253 [POLARIS_EVK] = {
254 /*
255 * In fact, the EVK is shipped without
256 * remotes, but we should have something handy,
257 * to allow testing it
258 */
259 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
260 .rx2 = 2,
261 },
262 [CX_HYBRID_TV] = {
263 .no_tx = 1, /* tx isn't wired up at all */
264 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
265 },
266 [HAUPPAUGE_CX_HYBRID_TV] = {
267 .no_tx = 1, /* eeprom says it has no tx */
268 .name = "Conexant Hybrid TV (cx231xx) MCE IR no TX",
269 },
270 [MULTIFUNCTION] = {
271 .mce_gen2 = 1,
272 .ir_intfnum = 2,
273 .rx2 = 2,
274 },
275 [TIVO_KIT] = {
276 .mce_gen2 = 1,
277 .rc_map = RC_MAP_TIVO,
278 .rx2 = 2,
279 },
280 [EVROMEDIA_FULL_HYBRID_FULLHD] = {
281 .name = "Evromedia USB Full Hybrid Full HD",
282 .no_tx = 1,
283 .rc_map = RC_MAP_MSI_DIGIVOX_III,
284 },
285 [ASTROMETA_T2HYBRID] = {
286 .name = "Astrometa T2Hybrid",
287 .no_tx = 1,
288 .rc_map = RC_MAP_ASTROMETA_T2HYBRID,
289 }
290 };
291
292 static const struct usb_device_id mceusb_dev_table[] = {
293 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
294 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
295 .driver_info = MCE_GEN1 },
296 /* Philips Infrared Transceiver - Sahara branded */
297 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
298 /* Philips Infrared Transceiver - HP branded */
299 { USB_DEVICE(VENDOR_PHILIPS, 0x060c),
300 .driver_info = MCE_GEN2_TX_INV },
301 /* Philips SRM5100 */
302 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
303 /* Philips Infrared Transceiver - Omaura */
304 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
305 /* Philips Infrared Transceiver - Spinel plus */
306 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
307 /* Philips eHome Infrared Transceiver */
308 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
309 /* Philips/Spinel plus IR transceiver for ASUS */
310 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
311 /* Philips/Spinel plus IR transceiver for ASUS */
312 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
313 /* Philips IR transceiver (Dell branded) */
314 { USB_DEVICE(VENDOR_PHILIPS, 0x2093),
315 .driver_info = MCE_GEN2_TX_INV },
316 /* Realtek MCE IR Receiver and card reader */
317 { USB_DEVICE(VENDOR_REALTEK, 0x0161),
318 .driver_info = MULTIFUNCTION },
319 /* SMK/Toshiba G83C0004D410 */
320 { USB_DEVICE(VENDOR_SMK, 0x031d),
321 .driver_info = MCE_GEN2_TX_INV_RX_GOOD },
322 /* SMK eHome Infrared Transceiver (Sony VAIO) */
323 { USB_DEVICE(VENDOR_SMK, 0x0322),
324 .driver_info = MCE_GEN2_TX_INV },
325 /* bundled with Hauppauge PVR-150 */
326 { USB_DEVICE(VENDOR_SMK, 0x0334),
327 .driver_info = MCE_GEN2_TX_INV },
328 /* SMK eHome Infrared Transceiver */
329 { USB_DEVICE(VENDOR_SMK, 0x0338) },
330 /* SMK/I-O Data GV-MC7/RCKIT Receiver */
331 { USB_DEVICE(VENDOR_SMK, 0x0353),
332 .driver_info = MCE_GEN2_NO_TX },
333 /* SMK RXX6000 Infrared Receiver */
334 { USB_DEVICE(VENDOR_SMK, 0x0357),
335 .driver_info = MCE_GEN2_NO_TX },
336 /* Tatung eHome Infrared Transceiver */
337 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
338 /* Shuttle eHome Infrared Transceiver */
339 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
340 /* Shuttle eHome Infrared Transceiver */
341 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
342 /* Gateway eHome Infrared Transceiver */
343 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
344 /* Mitsumi */
345 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
346 /* Topseed eHome Infrared Transceiver */
347 { USB_DEVICE(VENDOR_TOPSEED, 0x0001),
348 .driver_info = MCE_GEN2_TX_INV },
349 /* Topseed HP eHome Infrared Transceiver */
350 { USB_DEVICE(VENDOR_TOPSEED, 0x0006),
351 .driver_info = MCE_GEN2_TX_INV },
352 /* Topseed eHome Infrared Transceiver */
353 { USB_DEVICE(VENDOR_TOPSEED, 0x0007),
354 .driver_info = MCE_GEN2_TX_INV },
355 /* Topseed eHome Infrared Transceiver */
356 { USB_DEVICE(VENDOR_TOPSEED, 0x0008),
357 .driver_info = MCE_GEN3 },
358 /* Topseed eHome Infrared Transceiver */
359 { USB_DEVICE(VENDOR_TOPSEED, 0x000a),
360 .driver_info = MCE_GEN2_TX_INV },
361 /* Topseed eHome Infrared Transceiver */
362 { USB_DEVICE(VENDOR_TOPSEED, 0x0011),
363 .driver_info = MCE_GEN3_BROKEN_IRTIMEOUT },
364 /* Ricavision internal Infrared Transceiver */
365 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
366 /* Itron ione Libra Q-11 */
367 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
368 /* FIC eHome Infrared Transceiver */
369 { USB_DEVICE(VENDOR_FIC, 0x9242) },
370 /* LG eHome Infrared Transceiver */
371 { USB_DEVICE(VENDOR_LG, 0x9803) },
372 /* Microsoft MCE Infrared Transceiver */
373 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
374 /* Formosa eHome Infrared Transceiver */
375 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
376 /* Formosa21 / eHome Infrared Receiver */
377 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
378 /* Formosa aim / Trust MCE Infrared Receiver */
379 { USB_DEVICE(VENDOR_FORMOSA, 0xe017),
380 .driver_info = MCE_GEN2_NO_TX },
381 /* Formosa Industrial Computing / Beanbag Emulation Device */
382 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
383 /* Formosa21 / eHome Infrared Receiver */
384 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
385 /* Formosa Industrial Computing AIM IR605/A */
386 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
387 /* Formosa Industrial Computing */
388 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
389 /* Formosa Industrial Computing */
390 { USB_DEVICE(VENDOR_FORMOSA, 0xe042) },
391 /* Fintek eHome Infrared Transceiver (HP branded) */
392 { USB_DEVICE(VENDOR_FINTEK, 0x5168),
393 .driver_info = MCE_GEN2_TX_INV },
394 /* Fintek eHome Infrared Transceiver */
395 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
396 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
397 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
398 /* Pinnacle Remote Kit */
399 { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
400 .driver_info = MCE_GEN3 },
401 /* Elitegroup Computer Systems IR */
402 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
403 /* Wistron Corp. eHome Infrared Receiver */
404 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
405 /* Compro K100 */
406 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
407 /* Compro K100 v2 */
408 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
409 /* Northstar Systems, Inc. eHome Infrared Transceiver */
410 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
411 /* TiVo PC IR Receiver */
412 { USB_DEVICE(VENDOR_TIVO, 0x2000),
413 .driver_info = TIVO_KIT },
414 /* Conexant Hybrid TV "Shelby" Polaris SDK */
415 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
416 .driver_info = POLARIS_EVK },
417 /* Conexant Hybrid TV RDU253S Polaris */
418 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
419 .driver_info = CX_HYBRID_TV },
420 /* Twisted Melon Inc. - Manta Mini Receiver */
421 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8008) },
422 /* Twisted Melon Inc. - Manta Pico Receiver */
423 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8016) },
424 /* Twisted Melon Inc. - Manta Transceiver */
425 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8042) },
426 /* Hauppauge WINTV-HVR-HVR 930C-HD - based on cx231xx */
427 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb130),
428 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
429 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb131),
430 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
431 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb138),
432 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
433 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb139),
434 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
435 /* Hauppauge WinTV-HVR-935C - based on cx231xx */
436 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb151),
437 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
438 /* Hauppauge WinTV-HVR-955Q - based on cx231xx */
439 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb123),
440 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
441 /* Hauppauge WinTV-HVR-975 - based on cx231xx */
442 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb150),
443 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
444 { USB_DEVICE(VENDOR_PCTV, 0x0259),
445 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
446 { USB_DEVICE(VENDOR_PCTV, 0x025e),
447 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
448 /* Adaptec / HP eHome Receiver */
449 { USB_DEVICE(VENDOR_ADAPTEC, 0x0094) },
450 /* Evromedia USB Full Hybrid Full HD */
451 { USB_DEVICE(0x1b80, 0xd3b2),
452 .driver_info = EVROMEDIA_FULL_HYBRID_FULLHD },
453 /* Astrometa T2hybrid */
454 { USB_DEVICE(0x15f4, 0x0135),
455 .driver_info = ASTROMETA_T2HYBRID },
456
457 /* Terminating entry */
458 { }
459 };
460
461 /* data structure for each usb transceiver */
462 struct mceusb_dev {
463 /* ir-core bits */
464 struct rc_dev *rc;
465
466 /* optional features we can enable */
467 bool carrier_report_enabled;
468 bool wideband_rx_enabled; /* aka learning mode, short-range rx */
469
470 /* core device bits */
471 struct device *dev;
472
473 /* usb */
474 struct usb_device *usbdev;
475 struct urb *urb_in;
476 unsigned int pipe_in;
477 struct usb_endpoint_descriptor *usb_ep_out;
478 unsigned int pipe_out;
479
480 /* buffers and dma */
481 unsigned char *buf_in;
482 unsigned int len_in;
483 dma_addr_t dma_in;
484
485 enum {
486 CMD_HEADER = 0,
487 SUBCMD,
488 CMD_DATA,
489 PARSE_IRDATA,
490 } parser_state;
491
492 u8 cmd, rem; /* Remaining IR data bytes in packet */
493
494 struct {
495 u32 connected:1;
496 u32 tx_mask_normal:1;
497 u32 microsoft_gen1:1;
498 u32 no_tx:1;
499 u32 rx2;
500 } flags;
501
502 /* transmit support */
503 u32 carrier;
504 unsigned char tx_mask;
505
506 char name[128];
507 char phys[64];
508 enum mceusb_model_type model;
509
510 bool need_reset; /* flag to issue a device resume cmd */
511 u8 emver; /* emulator interface version */
512 u8 num_txports; /* number of transmit ports */
513 u8 num_rxports; /* number of receive sensors */
514 u8 txports_cabled; /* bitmask of transmitters with cable */
515 u8 rxports_active; /* bitmask of active receive sensors */
516 bool learning_active; /* wideband rx is active */
517
518 /* receiver carrier frequency detection support */
519 u32 pulse_tunit; /* IR pulse "on" cumulative time units */
520 u32 pulse_count; /* pulse "on" count in measurement interval */
521
522 /*
523 * support for async error handler mceusb_deferred_kevent()
524 * where usb_clear_halt(), usb_reset_configuration(),
525 * usb_reset_device(), etc. must be done in process context
526 */
527 struct work_struct kevent;
528 unsigned long kevent_flags;
529 # define EVENT_TX_HALT 0
530 # define EVENT_RX_HALT 1
531 };
532
533 /* MCE Device Command Strings, generally a port and command pair */
534 static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS,
535 MCE_CMD_RESUME};
536 static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION};
537 static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER};
538 static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION};
539 static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED};
540 static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2};
541 static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS};
542 static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT};
543 static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS};
544 static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS};
545 static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN};
546 /* sub in desired values in lower byte or bytes for full command */
547 /* FIXME: make use of these for transmit.
548 static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR,
549 MCE_CMD_SETIRCFS, 0x00, 0x00};
550 static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00};
551 static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR,
552 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00};
553 static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR,
554 MCE_RSP_EQIRRXPORTEN, 0x00};
555 */
556
557 static int mceusb_cmd_datasize(u8 cmd, u8 subcmd)
558 {
559 int datasize = 0;
560
561 switch (cmd) {
562 case MCE_CMD_NULL:
563 if (subcmd == MCE_CMD_PORT_SYS)
564 datasize = 1;
565 break;
566 case MCE_CMD_PORT_SYS:
567 switch (subcmd) {
568 case MCE_RSP_GETPORTSTATUS:
569 datasize = 5;
570 break;
571 case MCE_RSP_EQWAKEVERSION:
572 datasize = 4;
573 break;
574 case MCE_CMD_G_REVISION:
575 datasize = 2;
576 break;
577 case MCE_RSP_EQWAKESUPPORT:
578 case MCE_RSP_GETWAKESOURCE:
579 case MCE_RSP_EQDEVDETAILS:
580 case MCE_RSP_EQEMVER:
581 datasize = 1;
582 break;
583 }
584 break;
585 case MCE_CMD_PORT_IR:
586 switch (subcmd) {
587 case MCE_CMD_UNKNOWN:
588 case MCE_RSP_EQIRCFS:
589 case MCE_RSP_EQIRTIMEOUT:
590 case MCE_RSP_EQIRRXCFCNT:
591 case MCE_RSP_EQIRNUMPORTS:
592 datasize = 2;
593 break;
594 case MCE_CMD_SIG_END:
595 case MCE_RSP_EQIRTXPORTS:
596 case MCE_RSP_EQIRRXPORTEN:
597 datasize = 1;
598 break;
599 }
600 }
601 return datasize;
602 }
603
604 static void mceusb_dev_printdata(struct mceusb_dev *ir, u8 *buf, int buf_len,
605 int offset, int len, bool out)
606 {
607 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
608 char *inout;
609 u8 cmd, subcmd, *data;
610 struct device *dev = ir->dev;
611 int start, skip = 0;
612 u32 carrier, period;
613
614 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
615 if (ir->flags.microsoft_gen1 && !out && !offset)
616 skip = 2;
617
618 if (len <= skip)
619 return;
620
621 dev_dbg(dev, "%cx data: %*ph (length=%d)",
622 (out ? 't' : 'r'),
623 min(len, buf_len - offset), buf + offset, len);
624
625 inout = out ? "Request" : "Got";
626
627 start = offset + skip;
628 cmd = buf[start] & 0xff;
629 subcmd = buf[start + 1] & 0xff;
630 data = buf + start + 2;
631
632 switch (cmd) {
633 case MCE_CMD_NULL:
634 if (subcmd == MCE_CMD_NULL)
635 break;
636 if ((subcmd == MCE_CMD_PORT_SYS) &&
637 (data[0] == MCE_CMD_RESUME))
638 dev_dbg(dev, "Device resume requested");
639 else
640 dev_dbg(dev, "Unknown command 0x%02x 0x%02x",
641 cmd, subcmd);
642 break;
643 case MCE_CMD_PORT_SYS:
644 switch (subcmd) {
645 case MCE_RSP_EQEMVER:
646 if (!out)
647 dev_dbg(dev, "Emulator interface version %x",
648 data[0]);
649 break;
650 case MCE_CMD_G_REVISION:
651 if (len == 2)
652 dev_dbg(dev, "Get hw/sw rev?");
653 else
654 dev_dbg(dev, "hw/sw rev %*ph",
655 4, &buf[start + 2]);
656 break;
657 case MCE_CMD_RESUME:
658 dev_dbg(dev, "Device resume requested");
659 break;
660 case MCE_RSP_CMD_ILLEGAL:
661 dev_dbg(dev, "Illegal PORT_SYS command");
662 break;
663 case MCE_RSP_EQWAKEVERSION:
664 if (!out)
665 dev_dbg(dev, "Wake version, proto: 0x%02x, payload: 0x%02x, address: 0x%02x, version: 0x%02x",
666 data[0], data[1], data[2], data[3]);
667 break;
668 case MCE_RSP_GETPORTSTATUS:
669 if (!out)
670 /* We use data1 + 1 here, to match hw labels */
671 dev_dbg(dev, "TX port %d: blaster is%s connected",
672 data[0] + 1, data[3] ? " not" : "");
673 break;
674 case MCE_CMD_FLASHLED:
675 dev_dbg(dev, "Attempting to flash LED");
676 break;
677 default:
678 dev_dbg(dev, "Unknown command 0x%02x 0x%02x",
679 cmd, subcmd);
680 break;
681 }
682 break;
683 case MCE_CMD_PORT_IR:
684 switch (subcmd) {
685 case MCE_CMD_SIG_END:
686 dev_dbg(dev, "End of signal");
687 break;
688 case MCE_CMD_PING:
689 dev_dbg(dev, "Ping");
690 break;
691 case MCE_CMD_UNKNOWN:
692 dev_dbg(dev, "Resp to 9f 05 of 0x%02x 0x%02x",
693 data[0], data[1]);
694 break;
695 case MCE_RSP_EQIRCFS:
696 period = DIV_ROUND_CLOSEST((1U << data[0] * 2) *
697 (data[1] + 1), 10);
698 if (!period)
699 break;
700 carrier = (1000 * 1000) / period;
701 dev_dbg(dev, "%s carrier of %u Hz (period %uus)",
702 inout, carrier, period);
703 break;
704 case MCE_CMD_GETIRCFS:
705 dev_dbg(dev, "Get carrier mode and freq");
706 break;
707 case MCE_RSP_EQIRTXPORTS:
708 dev_dbg(dev, "%s transmit blaster mask of 0x%02x",
709 inout, data[0]);
710 break;
711 case MCE_RSP_EQIRTIMEOUT:
712 /* value is in units of 50us, so x*50/1000 ms */
713 period = ((data[0] << 8) | data[1]) *
714 MCE_TIME_UNIT / 1000;
715 dev_dbg(dev, "%s receive timeout of %d ms",
716 inout, period);
717 break;
718 case MCE_CMD_GETIRTIMEOUT:
719 dev_dbg(dev, "Get receive timeout");
720 break;
721 case MCE_CMD_GETIRTXPORTS:
722 dev_dbg(dev, "Get transmit blaster mask");
723 break;
724 case MCE_RSP_EQIRRXPORTEN:
725 dev_dbg(dev, "%s %s-range receive sensor in use",
726 inout, data[0] == 0x02 ? "short" : "long");
727 break;
728 case MCE_CMD_GETIRRXPORTEN:
729 /* aka MCE_RSP_EQIRRXCFCNT */
730 if (out)
731 dev_dbg(dev, "Get receive sensor");
732 else
733 dev_dbg(dev, "RX carrier cycle count: %d",
734 ((data[0] << 8) | data[1]));
735 break;
736 case MCE_RSP_EQIRNUMPORTS:
737 if (out)
738 break;
739 dev_dbg(dev, "Num TX ports: %x, num RX ports: %x",
740 data[0], data[1]);
741 break;
742 case MCE_RSP_CMD_ILLEGAL:
743 dev_dbg(dev, "Illegal PORT_IR command");
744 break;
745 default:
746 dev_dbg(dev, "Unknown command 0x%02x 0x%02x",
747 cmd, subcmd);
748 break;
749 }
750 break;
751 default:
752 break;
753 }
754
755 if (cmd == MCE_IRDATA_TRAILER)
756 dev_dbg(dev, "End of raw IR data");
757 else if ((cmd != MCE_CMD_PORT_IR) &&
758 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA))
759 dev_dbg(dev, "Raw IR data, %d pulse/space samples", ir->rem);
760 #endif
761 }
762
763 /*
764 * Schedule work that can't be done in interrupt handlers
765 * (mceusb_dev_recv() and mce_async_callback()) nor tasklets.
766 * Invokes mceusb_deferred_kevent() for recovering from
767 * error events specified by the kevent bit field.
768 */
769 static void mceusb_defer_kevent(struct mceusb_dev *ir, int kevent)
770 {
771 set_bit(kevent, &ir->kevent_flags);
772 if (!schedule_work(&ir->kevent))
773 dev_err(ir->dev, "kevent %d may have been dropped", kevent);
774 else
775 dev_dbg(ir->dev, "kevent %d scheduled", kevent);
776 }
777
778 static void mce_async_callback(struct urb *urb)
779 {
780 struct mceusb_dev *ir;
781 int len;
782
783 if (!urb)
784 return;
785
786 ir = urb->context;
787
788 switch (urb->status) {
789 /* success */
790 case 0:
791 len = urb->actual_length;
792
793 mceusb_dev_printdata(ir, urb->transfer_buffer, len,
794 0, len, true);
795 break;
796
797 case -ECONNRESET:
798 case -ENOENT:
799 case -EILSEQ:
800 case -ESHUTDOWN:
801 break;
802
803 case -EPIPE:
804 dev_err(ir->dev, "Error: request urb status = %d (TX HALT)",
805 urb->status);
806 mceusb_defer_kevent(ir, EVENT_TX_HALT);
807 break;
808
809 default:
810 dev_err(ir->dev, "Error: request urb status = %d", urb->status);
811 break;
812 }
813
814 /* the transfer buffer and urb were allocated in mce_request_packet */
815 kfree(urb->transfer_buffer);
816 usb_free_urb(urb);
817 }
818
819 /* request outgoing (send) usb packet - used to initialize remote */
820 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data,
821 int size)
822 {
823 int res;
824 struct urb *async_urb;
825 struct device *dev = ir->dev;
826 unsigned char *async_buf;
827
828 async_urb = usb_alloc_urb(0, GFP_KERNEL);
829 if (unlikely(!async_urb)) {
830 dev_err(dev, "Error, couldn't allocate urb!");
831 return;
832 }
833
834 async_buf = kmalloc(size, GFP_KERNEL);
835 if (!async_buf) {
836 usb_free_urb(async_urb);
837 return;
838 }
839
840 /* outbound data */
841 if (usb_endpoint_xfer_int(ir->usb_ep_out))
842 usb_fill_int_urb(async_urb, ir->usbdev, ir->pipe_out,
843 async_buf, size, mce_async_callback, ir,
844 ir->usb_ep_out->bInterval);
845 else
846 usb_fill_bulk_urb(async_urb, ir->usbdev, ir->pipe_out,
847 async_buf, size, mce_async_callback, ir);
848
849 memcpy(async_buf, data, size);
850
851 dev_dbg(dev, "send request called (size=%#x)", size);
852
853 res = usb_submit_urb(async_urb, GFP_ATOMIC);
854 if (res) {
855 dev_err(dev, "send request FAILED! (res=%d)", res);
856 kfree(async_buf);
857 usb_free_urb(async_urb);
858 return;
859 }
860 dev_dbg(dev, "send request complete (res=%d)", res);
861 }
862
863 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
864 {
865 int rsize = sizeof(DEVICE_RESUME);
866
867 if (ir->need_reset) {
868 ir->need_reset = false;
869 mce_request_packet(ir, DEVICE_RESUME, rsize);
870 msleep(10);
871 }
872
873 mce_request_packet(ir, data, size);
874 msleep(10);
875 }
876
877 /* Send data out the IR blaster port(s) */
878 static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
879 {
880 struct mceusb_dev *ir = dev->priv;
881 int i, length, ret = 0;
882 int cmdcount = 0;
883 unsigned char cmdbuf[MCE_CMDBUF_SIZE];
884
885 /* MCE tx init header */
886 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR;
887 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS;
888 cmdbuf[cmdcount++] = ir->tx_mask;
889
890 /* Send the set TX ports command */
891 mce_async_out(ir, cmdbuf, cmdcount);
892 cmdcount = 0;
893
894 /* Generate mce packet data */
895 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
896 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
897
898 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
899
900 /* Insert mce packet header every 4th entry */
901 if ((cmdcount < MCE_CMDBUF_SIZE) &&
902 (cmdcount % MCE_CODE_LENGTH) == 0)
903 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
904
905 /* Insert mce packet data */
906 if (cmdcount < MCE_CMDBUF_SIZE)
907 cmdbuf[cmdcount++] =
908 (txbuf[i] < MCE_PULSE_BIT ?
909 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
910 (i & 1 ? 0x00 : MCE_PULSE_BIT);
911 else {
912 ret = -EINVAL;
913 goto out;
914 }
915
916 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
917 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
918 }
919
920 /* Check if we have room for the empty packet at the end */
921 if (cmdcount >= MCE_CMDBUF_SIZE) {
922 ret = -EINVAL;
923 goto out;
924 }
925
926 /* Fix packet length in last header */
927 length = cmdcount % MCE_CODE_LENGTH;
928 cmdbuf[cmdcount - length] -= MCE_CODE_LENGTH - length;
929
930 /* All mce commands end with an empty packet (0x80) */
931 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
932
933 /* Transmit the command to the mce device */
934 mce_async_out(ir, cmdbuf, cmdcount);
935
936 out:
937 return ret ? ret : count;
938 }
939
940 /* Sets active IR outputs -- mce devices typically have two */
941 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
942 {
943 struct mceusb_dev *ir = dev->priv;
944
945 /* return number of transmitters */
946 int emitters = ir->num_txports ? ir->num_txports : 2;
947
948 if (mask >= (1 << emitters))
949 return emitters;
950
951 if (ir->flags.tx_mask_normal)
952 ir->tx_mask = mask;
953 else
954 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
955 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
956
957 return 0;
958 }
959
960 /* Sets the send carrier frequency and mode */
961 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
962 {
963 struct mceusb_dev *ir = dev->priv;
964 int clk = 10000000;
965 int prescaler = 0, divisor = 0;
966 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR,
967 MCE_CMD_SETIRCFS, 0x00, 0x00 };
968
969 /* Carrier has changed */
970 if (ir->carrier != carrier) {
971
972 if (carrier == 0) {
973 ir->carrier = carrier;
974 cmdbuf[2] = MCE_CMD_SIG_END;
975 cmdbuf[3] = MCE_IRDATA_TRAILER;
976 dev_dbg(ir->dev, "disabling carrier modulation");
977 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
978 return 0;
979 }
980
981 for (prescaler = 0; prescaler < 4; ++prescaler) {
982 divisor = (clk >> (2 * prescaler)) / carrier;
983 if (divisor <= 0xff) {
984 ir->carrier = carrier;
985 cmdbuf[2] = prescaler;
986 cmdbuf[3] = divisor;
987 dev_dbg(ir->dev, "requesting %u HZ carrier",
988 carrier);
989
990 /* Transmit new carrier to mce device */
991 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
992 return 0;
993 }
994 }
995
996 return -EINVAL;
997
998 }
999
1000 return 0;
1001 }
1002
1003 static int mceusb_set_timeout(struct rc_dev *dev, unsigned int timeout)
1004 {
1005 u8 cmdbuf[4] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRTIMEOUT, 0, 0 };
1006 struct mceusb_dev *ir = dev->priv;
1007 unsigned int units;
1008
1009 units = DIV_ROUND_CLOSEST(timeout, US_TO_NS(MCE_TIME_UNIT));
1010
1011 cmdbuf[2] = units >> 8;
1012 cmdbuf[3] = units;
1013
1014 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1015
1016 /* get receiver timeout value */
1017 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
1018
1019 return 0;
1020 }
1021
1022 /*
1023 * Select or deselect the 2nd receiver port.
1024 * Second receiver is learning mode, wide-band, short-range receiver.
1025 * Only one receiver (long or short range) may be active at a time.
1026 */
1027 static int mceusb_set_rx_wideband(struct rc_dev *dev, int enable)
1028 {
1029 struct mceusb_dev *ir = dev->priv;
1030 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR,
1031 MCE_CMD_SETIRRXPORTEN, 0x00 };
1032
1033 dev_dbg(ir->dev, "select %s-range receive sensor",
1034 enable ? "short" : "long");
1035 if (enable) {
1036 ir->wideband_rx_enabled = true;
1037 cmdbuf[2] = 2; /* port 2 is short range receiver */
1038 } else {
1039 ir->wideband_rx_enabled = false;
1040 cmdbuf[2] = 1; /* port 1 is long range receiver */
1041 }
1042 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1043 /* response from device sets ir->learning_active */
1044
1045 return 0;
1046 }
1047
1048 /*
1049 * Enable/disable receiver carrier frequency pass through reporting.
1050 * Only the short-range receiver has carrier frequency measuring capability.
1051 * Implicitly select this receiver when enabling carrier frequency reporting.
1052 */
1053 static int mceusb_set_rx_carrier_report(struct rc_dev *dev, int enable)
1054 {
1055 struct mceusb_dev *ir = dev->priv;
1056 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR,
1057 MCE_CMD_SETIRRXPORTEN, 0x00 };
1058
1059 dev_dbg(ir->dev, "%s short-range receiver carrier reporting",
1060 enable ? "enable" : "disable");
1061 if (enable) {
1062 ir->carrier_report_enabled = true;
1063 if (!ir->learning_active) {
1064 cmdbuf[2] = 2; /* port 2 is short range receiver */
1065 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1066 }
1067 } else {
1068 ir->carrier_report_enabled = false;
1069 /*
1070 * Revert to normal (long-range) receiver only if the
1071 * wideband (short-range) receiver wasn't explicitly
1072 * enabled.
1073 */
1074 if (ir->learning_active && !ir->wideband_rx_enabled) {
1075 cmdbuf[2] = 1; /* port 1 is long range receiver */
1076 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1077 }
1078 }
1079
1080 return 0;
1081 }
1082
1083 /*
1084 * We don't do anything but print debug spew for many of the command bits
1085 * we receive from the hardware, but some of them are useful information
1086 * we want to store so that we can use them.
1087 */
1088 static void mceusb_handle_command(struct mceusb_dev *ir, int index)
1089 {
1090 struct ir_raw_event rawir = {};
1091 u8 hi = ir->buf_in[index + 1] & 0xff;
1092 u8 lo = ir->buf_in[index + 2] & 0xff;
1093 u32 carrier_cycles;
1094 u32 cycles_fix;
1095
1096 switch (ir->buf_in[index]) {
1097 /* the one and only 5-byte return value command */
1098 case MCE_RSP_GETPORTSTATUS:
1099 if ((ir->buf_in[index + 4] & 0xff) == 0x00)
1100 ir->txports_cabled |= 1 << hi;
1101 break;
1102
1103 /* 2-byte return value commands */
1104 case MCE_RSP_EQIRTIMEOUT:
1105 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);
1106 break;
1107 case MCE_RSP_EQIRNUMPORTS:
1108 ir->num_txports = hi;
1109 ir->num_rxports = lo;
1110 break;
1111 case MCE_RSP_EQIRRXCFCNT:
1112 /*
1113 * The carrier cycle counter can overflow and wrap around
1114 * without notice from the device. So frequency measurement
1115 * will be inaccurate with long duration IR.
1116 *
1117 * The long-range (non learning) receiver always reports
1118 * zero count so we always ignore its report.
1119 */
1120 if (ir->carrier_report_enabled && ir->learning_active &&
1121 ir->pulse_tunit > 0) {
1122 carrier_cycles = (hi << 8 | lo);
1123 /*
1124 * Adjust carrier cycle count by adding
1125 * 1 missed count per pulse "on"
1126 */
1127 cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0;
1128 rawir.carrier_report = 1;
1129 rawir.carrier = (1000000u / MCE_TIME_UNIT) *
1130 (carrier_cycles + cycles_fix) /
1131 ir->pulse_tunit;
1132 dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = %u)",
1133 rawir.carrier, ir->pulse_count, carrier_cycles,
1134 ir->pulse_tunit, ir->flags.rx2);
1135 ir_raw_event_store(ir->rc, &rawir);
1136 }
1137 break;
1138
1139 /* 1-byte return value commands */
1140 case MCE_RSP_EQEMVER:
1141 ir->emver = hi;
1142 break;
1143 case MCE_RSP_EQIRTXPORTS:
1144 ir->tx_mask = hi;
1145 break;
1146 case MCE_RSP_EQIRRXPORTEN:
1147 ir->learning_active = ((hi & 0x02) == 0x02);
1148 if (ir->rxports_active != hi) {
1149 dev_info(ir->dev, "%s-range (0x%x) receiver active",
1150 ir->learning_active ? "short" : "long", hi);
1151 ir->rxports_active = hi;
1152 }
1153 break;
1154 case MCE_RSP_CMD_ILLEGAL:
1155 ir->need_reset = true;
1156 break;
1157 default:
1158 break;
1159 }
1160 }
1161
1162 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
1163 {
1164 struct ir_raw_event rawir = {};
1165 bool event = false;
1166 int i = 0;
1167
1168 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
1169 if (ir->flags.microsoft_gen1)
1170 i = 2;
1171
1172 /* if there's no data, just return now */
1173 if (buf_len <= i)
1174 return;
1175
1176 for (; i < buf_len; i++) {
1177 switch (ir->parser_state) {
1178 case SUBCMD:
1179 ir->rem = mceusb_cmd_datasize(ir->cmd, ir->buf_in[i]);
1180 mceusb_dev_printdata(ir, ir->buf_in, buf_len, i - 1,
1181 ir->rem + 2, false);
1182 mceusb_handle_command(ir, i);
1183 ir->parser_state = CMD_DATA;
1184 break;
1185 case PARSE_IRDATA:
1186 ir->rem--;
1187 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
1188 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK);
1189 if (unlikely(!rawir.duration)) {
1190 dev_warn(ir->dev, "nonsensical irdata %02x with duration 0",
1191 ir->buf_in[i]);
1192 break;
1193 }
1194 if (rawir.pulse) {
1195 ir->pulse_tunit += rawir.duration;
1196 ir->pulse_count++;
1197 }
1198 rawir.duration *= US_TO_NS(MCE_TIME_UNIT);
1199
1200 dev_dbg(ir->dev, "Storing %s %u ns (%02x)",
1201 rawir.pulse ? "pulse" : "space",
1202 rawir.duration, ir->buf_in[i]);
1203
1204 if (ir_raw_event_store_with_filter(ir->rc, &rawir))
1205 event = true;
1206 break;
1207 case CMD_DATA:
1208 ir->rem--;
1209 break;
1210 case CMD_HEADER:
1211 /* decode mce packets of the form (84),AA,BB,CC,DD */
1212 /* IR data packets can span USB messages - rem */
1213 ir->cmd = ir->buf_in[i];
1214 if ((ir->cmd == MCE_CMD_PORT_IR) ||
1215 ((ir->cmd & MCE_PORT_MASK) !=
1216 MCE_COMMAND_IRDATA)) {
1217 ir->parser_state = SUBCMD;
1218 continue;
1219 }
1220 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
1221 mceusb_dev_printdata(ir, ir->buf_in, buf_len,
1222 i, ir->rem + 1, false);
1223 if (ir->rem) {
1224 ir->parser_state = PARSE_IRDATA;
1225 } else {
1226 struct ir_raw_event ev = {
1227 .timeout = 1,
1228 .duration = ir->rc->timeout
1229 };
1230
1231 if (ir_raw_event_store_with_filter(ir->rc,
1232 &ev))
1233 event = true;
1234 ir->pulse_tunit = 0;
1235 ir->pulse_count = 0;
1236 }
1237 break;
1238 }
1239
1240 if (ir->parser_state != CMD_HEADER && !ir->rem)
1241 ir->parser_state = CMD_HEADER;
1242 }
1243 if (event) {
1244 dev_dbg(ir->dev, "processed IR data");
1245 ir_raw_event_handle(ir->rc);
1246 }
1247 }
1248
1249 static void mceusb_dev_recv(struct urb *urb)
1250 {
1251 struct mceusb_dev *ir;
1252
1253 if (!urb)
1254 return;
1255
1256 ir = urb->context;
1257 if (!ir) {
1258 usb_unlink_urb(urb);
1259 return;
1260 }
1261
1262 switch (urb->status) {
1263 /* success */
1264 case 0:
1265 mceusb_process_ir_data(ir, urb->actual_length);
1266 break;
1267
1268 case -ECONNRESET:
1269 case -ENOENT:
1270 case -EILSEQ:
1271 case -ESHUTDOWN:
1272 usb_unlink_urb(urb);
1273 return;
1274
1275 case -EPIPE:
1276 dev_err(ir->dev, "Error: urb status = %d (RX HALT)",
1277 urb->status);
1278 mceusb_defer_kevent(ir, EVENT_RX_HALT);
1279 return;
1280
1281 default:
1282 dev_err(ir->dev, "Error: urb status = %d", urb->status);
1283 break;
1284 }
1285
1286 usb_submit_urb(urb, GFP_ATOMIC);
1287 }
1288
1289 static void mceusb_get_emulator_version(struct mceusb_dev *ir)
1290 {
1291 /* If we get no reply or an illegal command reply, its ver 1, says MS */
1292 ir->emver = 1;
1293 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER));
1294 }
1295
1296 static void mceusb_gen1_init(struct mceusb_dev *ir)
1297 {
1298 int ret;
1299 struct device *dev = ir->dev;
1300 char *data;
1301
1302 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
1303 if (!data) {
1304 dev_err(dev, "%s: memory allocation failed!", __func__);
1305 return;
1306 }
1307
1308 /*
1309 * This is a strange one. Windows issues a set address to the device
1310 * on the receive control pipe and expect a certain value pair back
1311 */
1312 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
1313 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
1314 data, USB_CTRL_MSG_SZ, HZ * 3);
1315 dev_dbg(dev, "set address - ret = %d", ret);
1316 dev_dbg(dev, "set address - data[0] = %d, data[1] = %d",
1317 data[0], data[1]);
1318
1319 /* set feature: bit rate 38400 bps */
1320 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1321 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
1322 0xc04e, 0x0000, NULL, 0, HZ * 3);
1323
1324 dev_dbg(dev, "set feature - ret = %d", ret);
1325
1326 /* bRequest 4: set char length to 8 bits */
1327 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1328 4, USB_TYPE_VENDOR,
1329 0x0808, 0x0000, NULL, 0, HZ * 3);
1330 dev_dbg(dev, "set char length - retB = %d", ret);
1331
1332 /* bRequest 2: set handshaking to use DTR/DSR */
1333 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1334 2, USB_TYPE_VENDOR,
1335 0x0000, 0x0100, NULL, 0, HZ * 3);
1336 dev_dbg(dev, "set handshake - retC = %d", ret);
1337
1338 /* device resume */
1339 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
1340
1341 /* get hw/sw revision? */
1342 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1343
1344 kfree(data);
1345 }
1346
1347 static void mceusb_gen2_init(struct mceusb_dev *ir)
1348 {
1349 /* device resume */
1350 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
1351
1352 /* get wake version (protocol, key, address) */
1353 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION));
1354
1355 /* unknown what this one actually returns... */
1356 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
1357 }
1358
1359 static void mceusb_get_parameters(struct mceusb_dev *ir)
1360 {
1361 int i;
1362 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS,
1363 MCE_CMD_GETPORTSTATUS, 0x00 };
1364
1365 /* defaults, if the hardware doesn't support querying */
1366 ir->num_txports = 2;
1367 ir->num_rxports = 2;
1368
1369 /* get number of tx and rx ports */
1370 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS));
1371
1372 /* get the carrier and frequency */
1373 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
1374
1375 if (ir->num_txports && !ir->flags.no_tx)
1376 /* get the transmitter bitmask */
1377 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
1378
1379 /* get receiver timeout value */
1380 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
1381
1382 /* get receiver sensor setting */
1383 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
1384
1385 for (i = 0; i < ir->num_txports; i++) {
1386 cmdbuf[2] = i;
1387 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1388 }
1389 }
1390
1391 static void mceusb_flash_led(struct mceusb_dev *ir)
1392 {
1393 if (ir->emver < 2)
1394 return;
1395
1396 mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED));
1397 }
1398
1399 /*
1400 * Workqueue function
1401 * for resetting or recovering device after occurrence of error events
1402 * specified in ir->kevent bit field.
1403 * Function runs (via schedule_work()) in non-interrupt context, for
1404 * calls here (such as usb_clear_halt()) requiring non-interrupt context.
1405 */
1406 static void mceusb_deferred_kevent(struct work_struct *work)
1407 {
1408 struct mceusb_dev *ir =
1409 container_of(work, struct mceusb_dev, kevent);
1410 int status;
1411
1412 if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) {
1413 usb_unlink_urb(ir->urb_in);
1414 status = usb_clear_halt(ir->usbdev, ir->pipe_in);
1415 if (status < 0) {
1416 dev_err(ir->dev, "rx clear halt error %d",
1417 status);
1418 }
1419 clear_bit(EVENT_RX_HALT, &ir->kevent_flags);
1420 if (status == 0) {
1421 status = usb_submit_urb(ir->urb_in, GFP_KERNEL);
1422 if (status < 0) {
1423 dev_err(ir->dev,
1424 "rx unhalt submit urb error %d",
1425 status);
1426 }
1427 }
1428 }
1429
1430 if (test_bit(EVENT_TX_HALT, &ir->kevent_flags)) {
1431 status = usb_clear_halt(ir->usbdev, ir->pipe_out);
1432 if (status < 0)
1433 dev_err(ir->dev, "tx clear halt error %d", status);
1434 clear_bit(EVENT_TX_HALT, &ir->kevent_flags);
1435 }
1436 }
1437
1438 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
1439 {
1440 struct usb_device *udev = ir->usbdev;
1441 struct device *dev = ir->dev;
1442 struct rc_dev *rc;
1443 int ret;
1444
1445 rc = rc_allocate_device(RC_DRIVER_IR_RAW);
1446 if (!rc) {
1447 dev_err(dev, "remote dev allocation failed");
1448 goto out;
1449 }
1450
1451 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
1452 mceusb_model[ir->model].name ?
1453 mceusb_model[ir->model].name :
1454 "Media Center Ed. eHome Infrared Remote Transceiver",
1455 le16_to_cpu(ir->usbdev->descriptor.idVendor),
1456 le16_to_cpu(ir->usbdev->descriptor.idProduct));
1457
1458 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
1459
1460 rc->device_name = ir->name;
1461 rc->input_phys = ir->phys;
1462 usb_to_input_id(ir->usbdev, &rc->input_id);
1463 rc->dev.parent = dev;
1464 rc->priv = ir;
1465 rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
1466 rc->min_timeout = US_TO_NS(MCE_TIME_UNIT);
1467 rc->timeout = MS_TO_NS(100);
1468 if (!mceusb_model[ir->model].broken_irtimeout) {
1469 rc->s_timeout = mceusb_set_timeout;
1470 rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
1471 } else {
1472 /*
1473 * If we can't set the timeout using CMD_SETIRTIMEOUT, we can
1474 * rely on software timeouts for timeouts < 100ms.
1475 */
1476 rc->max_timeout = rc->timeout;
1477 }
1478 if (!ir->flags.no_tx) {
1479 rc->s_tx_mask = mceusb_set_tx_mask;
1480 rc->s_tx_carrier = mceusb_set_tx_carrier;
1481 rc->tx_ir = mceusb_tx_ir;
1482 }
1483 if (ir->flags.rx2 > 0) {
1484 rc->s_learning_mode = mceusb_set_rx_wideband;
1485 rc->s_carrier_report = mceusb_set_rx_carrier_report;
1486 }
1487 rc->driver_name = DRIVER_NAME;
1488
1489 switch (le16_to_cpu(udev->descriptor.idVendor)) {
1490 case VENDOR_HAUPPAUGE:
1491 rc->map_name = RC_MAP_HAUPPAUGE;
1492 break;
1493 case VENDOR_PCTV:
1494 rc->map_name = RC_MAP_PINNACLE_PCTV_HD;
1495 break;
1496 default:
1497 rc->map_name = RC_MAP_RC6_MCE;
1498 }
1499 if (mceusb_model[ir->model].rc_map)
1500 rc->map_name = mceusb_model[ir->model].rc_map;
1501
1502 ret = rc_register_device(rc);
1503 if (ret < 0) {
1504 dev_err(dev, "remote dev registration failed");
1505 goto out;
1506 }
1507
1508 return rc;
1509
1510 out:
1511 rc_free_device(rc);
1512 return NULL;
1513 }
1514
1515 static int mceusb_dev_probe(struct usb_interface *intf,
1516 const struct usb_device_id *id)
1517 {
1518 struct usb_device *dev = interface_to_usbdev(intf);
1519 struct usb_host_interface *idesc;
1520 struct usb_endpoint_descriptor *ep = NULL;
1521 struct usb_endpoint_descriptor *ep_in = NULL;
1522 struct usb_endpoint_descriptor *ep_out = NULL;
1523 struct mceusb_dev *ir = NULL;
1524 int pipe, maxp, i, res;
1525 char buf[63], name[128] = "";
1526 enum mceusb_model_type model = id->driver_info;
1527 bool is_gen3;
1528 bool is_microsoft_gen1;
1529 bool tx_mask_normal;
1530 int ir_intfnum;
1531
1532 dev_dbg(&intf->dev, "%s called", __func__);
1533
1534 idesc = intf->cur_altsetting;
1535
1536 is_gen3 = mceusb_model[model].mce_gen3;
1537 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1538 tx_mask_normal = mceusb_model[model].tx_mask_normal;
1539 ir_intfnum = mceusb_model[model].ir_intfnum;
1540
1541 /* There are multi-function devices with non-IR interfaces */
1542 if (idesc->desc.bInterfaceNumber != ir_intfnum)
1543 return -ENODEV;
1544
1545 /* step through the endpoints to find first bulk in and out endpoint */
1546 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1547 ep = &idesc->endpoint[i].desc;
1548
1549 if (ep_in == NULL) {
1550 if (usb_endpoint_is_bulk_in(ep)) {
1551 ep_in = ep;
1552 dev_dbg(&intf->dev, "acceptable bulk inbound endpoint found\n");
1553 } else if (usb_endpoint_is_int_in(ep)) {
1554 ep_in = ep;
1555 ep_in->bInterval = 1;
1556 dev_dbg(&intf->dev, "acceptable interrupt inbound endpoint found\n");
1557 }
1558 }
1559
1560 if (ep_out == NULL) {
1561 if (usb_endpoint_is_bulk_out(ep)) {
1562 ep_out = ep;
1563 dev_dbg(&intf->dev, "acceptable bulk outbound endpoint found\n");
1564 } else if (usb_endpoint_is_int_out(ep)) {
1565 ep_out = ep;
1566 ep_out->bInterval = 1;
1567 dev_dbg(&intf->dev, "acceptable interrupt outbound endpoint found\n");
1568 }
1569 }
1570 }
1571 if (!ep_in || !ep_out) {
1572 dev_dbg(&intf->dev, "required endpoints not found\n");
1573 return -ENODEV;
1574 }
1575
1576 if (usb_endpoint_xfer_int(ep_in))
1577 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1578 else
1579 pipe = usb_rcvbulkpipe(dev, ep_in->bEndpointAddress);
1580 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1581
1582 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1583 if (!ir)
1584 goto mem_alloc_fail;
1585
1586 ir->pipe_in = pipe;
1587 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1588 if (!ir->buf_in)
1589 goto buf_in_alloc_fail;
1590
1591 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1592 if (!ir->urb_in)
1593 goto urb_in_alloc_fail;
1594
1595 ir->usbdev = usb_get_dev(dev);
1596 ir->dev = &intf->dev;
1597 ir->len_in = maxp;
1598 ir->flags.microsoft_gen1 = is_microsoft_gen1;
1599 ir->flags.tx_mask_normal = tx_mask_normal;
1600 ir->flags.no_tx = mceusb_model[model].no_tx;
1601 ir->flags.rx2 = mceusb_model[model].rx2;
1602 ir->model = model;
1603
1604 /* Saving usb interface data for use by the transmitter routine */
1605 ir->usb_ep_out = ep_out;
1606 if (usb_endpoint_xfer_int(ep_out))
1607 ir->pipe_out = usb_sndintpipe(ir->usbdev,
1608 ep_out->bEndpointAddress);
1609 else
1610 ir->pipe_out = usb_sndbulkpipe(ir->usbdev,
1611 ep_out->bEndpointAddress);
1612
1613 if (dev->descriptor.iManufacturer
1614 && usb_string(dev, dev->descriptor.iManufacturer,
1615 buf, sizeof(buf)) > 0)
1616 strscpy(name, buf, sizeof(name));
1617 if (dev->descriptor.iProduct
1618 && usb_string(dev, dev->descriptor.iProduct,
1619 buf, sizeof(buf)) > 0)
1620 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1621 " %s", buf);
1622
1623 /*
1624 * Initialize async USB error handler before registering
1625 * or activating any mceusb RX and TX functions
1626 */
1627 INIT_WORK(&ir->kevent, mceusb_deferred_kevent);
1628
1629 ir->rc = mceusb_init_rc_dev(ir);
1630 if (!ir->rc)
1631 goto rc_dev_fail;
1632
1633 /* wire up inbound data handler */
1634 if (usb_endpoint_xfer_int(ep_in))
1635 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,
1636 mceusb_dev_recv, ir, ep_in->bInterval);
1637 else
1638 usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,
1639 mceusb_dev_recv, ir);
1640
1641 ir->urb_in->transfer_dma = ir->dma_in;
1642 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1643
1644 /* flush buffers on the device */
1645 dev_dbg(&intf->dev, "Flushing receive buffers");
1646 res = usb_submit_urb(ir->urb_in, GFP_KERNEL);
1647 if (res)
1648 dev_err(&intf->dev, "failed to flush buffers: %d", res);
1649
1650 /* figure out which firmware/emulator version this hardware has */
1651 mceusb_get_emulator_version(ir);
1652
1653 /* initialize device */
1654 if (ir->flags.microsoft_gen1)
1655 mceusb_gen1_init(ir);
1656 else if (!is_gen3)
1657 mceusb_gen2_init(ir);
1658
1659 mceusb_get_parameters(ir);
1660
1661 mceusb_flash_led(ir);
1662
1663 if (!ir->flags.no_tx)
1664 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
1665
1666 usb_set_intfdata(intf, ir);
1667
1668 /* enable wake via this device */
1669 device_set_wakeup_capable(ir->dev, true);
1670 device_set_wakeup_enable(ir->dev, true);
1671
1672 dev_info(&intf->dev, "Registered %s with mce emulator interface version %x",
1673 name, ir->emver);
1674 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and %x rx sensors (0x%x active)",
1675 ir->num_txports, ir->txports_cabled,
1676 ir->num_rxports, ir->rxports_active);
1677
1678 return 0;
1679
1680 /* Error-handling path */
1681 rc_dev_fail:
1682 cancel_work_sync(&ir->kevent);
1683 usb_put_dev(ir->usbdev);
1684 usb_kill_urb(ir->urb_in);
1685 usb_free_urb(ir->urb_in);
1686 urb_in_alloc_fail:
1687 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1688 buf_in_alloc_fail:
1689 kfree(ir);
1690 mem_alloc_fail:
1691 dev_err(&intf->dev, "%s: device setup failed!", __func__);
1692
1693 return -ENOMEM;
1694 }
1695
1696
1697 static void mceusb_dev_disconnect(struct usb_interface *intf)
1698 {
1699 struct usb_device *dev = interface_to_usbdev(intf);
1700 struct mceusb_dev *ir = usb_get_intfdata(intf);
1701
1702 usb_set_intfdata(intf, NULL);
1703
1704 if (!ir)
1705 return;
1706
1707 ir->usbdev = NULL;
1708 cancel_work_sync(&ir->kevent);
1709 rc_unregister_device(ir->rc);
1710 usb_kill_urb(ir->urb_in);
1711 usb_free_urb(ir->urb_in);
1712 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1713 usb_put_dev(dev);
1714
1715 kfree(ir);
1716 }
1717
1718 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1719 {
1720 struct mceusb_dev *ir = usb_get_intfdata(intf);
1721 dev_info(ir->dev, "suspend");
1722 usb_kill_urb(ir->urb_in);
1723 return 0;
1724 }
1725
1726 static int mceusb_dev_resume(struct usb_interface *intf)
1727 {
1728 struct mceusb_dev *ir = usb_get_intfdata(intf);
1729 dev_info(ir->dev, "resume");
1730 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1731 return -EIO;
1732 return 0;
1733 }
1734
1735 static struct usb_driver mceusb_dev_driver = {
1736 .name = DRIVER_NAME,
1737 .probe = mceusb_dev_probe,
1738 .disconnect = mceusb_dev_disconnect,
1739 .suspend = mceusb_dev_suspend,
1740 .resume = mceusb_dev_resume,
1741 .reset_resume = mceusb_dev_resume,
1742 .id_table = mceusb_dev_table
1743 };
1744
1745 module_usb_driver(mceusb_dev_driver);
1746
1747 MODULE_DESCRIPTION(DRIVER_DESC);
1748 MODULE_AUTHOR(DRIVER_AUTHOR);
1749 MODULE_LICENSE("GPL");
1750 MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
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