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usb: gadget: udc: core: Document the relation between usb_ep_queue() and completion...
[linux/fpc-iii.git] / drivers / media / rc / mceusb.c
blob69ba57372c0599da0195d337d85007199a60f9a3
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 thru 0xdf flush & 0x1f bytes */
83 #define MCE_PORT_MASK 0xe0 /* Mask out command bits */
84
85 /* Command port headers */
86 #define MCE_CMD_PORT_IR 0x9f /* IR-related cmd/rsp */
87 #define MCE_CMD_PORT_SYS 0xff /* System (non-IR) device cmd/rsp */
88
89 /* Commands that set device state (2-4 bytes in length) */
90 #define MCE_CMD_RESET 0xfe /* Reset device, 2 bytes */
91 #define MCE_CMD_RESUME 0xaa /* Resume device after error, 2 bytes */
92 #define MCE_CMD_SETIRCFS 0x06 /* Set tx carrier, 4 bytes */
93 #define MCE_CMD_SETIRTIMEOUT 0x0c /* Set timeout, 4 bytes */
94 #define MCE_CMD_SETIRTXPORTS 0x08 /* Set tx ports, 3 bytes */
95 #define MCE_CMD_SETIRRXPORTEN 0x14 /* Set rx ports, 3 bytes */
96 #define MCE_CMD_FLASHLED 0x23 /* Flash receiver LED, 2 bytes */
97
98 /* Commands that query device state (all 2 bytes, unless noted) */
99 #define MCE_CMD_GETIRCFS 0x07 /* Get carrier */
100 #define MCE_CMD_GETIRTIMEOUT 0x0d /* Get timeout */
101 #define MCE_CMD_GETIRTXPORTS 0x13 /* Get tx ports */
102 #define MCE_CMD_GETIRRXPORTEN 0x15 /* Get rx ports */
103 #define MCE_CMD_GETPORTSTATUS 0x11 /* Get tx port status, 3 bytes */
104 #define MCE_CMD_GETIRNUMPORTS 0x16 /* Get number of ports */
105 #define MCE_CMD_GETWAKESOURCE 0x17 /* Get wake source */
106 #define MCE_CMD_GETEMVER 0x22 /* Get emulator interface version */
107 #define MCE_CMD_GETDEVDETAILS 0x21 /* Get device details (em ver2 only) */
108 #define MCE_CMD_GETWAKESUPPORT 0x20 /* Get wake details (em ver2 only) */
109 #define MCE_CMD_GETWAKEVERSION 0x18 /* Get wake pattern (em ver2 only) */
110
111 /* Misc commands */
112 #define MCE_CMD_NOP 0xff /* No operation */
113
114 /* Responses to commands (non-error cases) */
115 #define MCE_RSP_EQIRCFS 0x06 /* tx carrier, 4 bytes */
116 #define MCE_RSP_EQIRTIMEOUT 0x0c /* rx timeout, 4 bytes */
117 #define MCE_RSP_GETWAKESOURCE 0x17 /* wake source, 3 bytes */
118 #define MCE_RSP_EQIRTXPORTS 0x08 /* tx port mask, 3 bytes */
119 #define MCE_RSP_EQIRRXPORTEN 0x14 /* rx port mask, 3 bytes */
120 #define MCE_RSP_GETPORTSTATUS 0x11 /* tx port status, 7 bytes */
121 #define MCE_RSP_EQIRRXCFCNT 0x15 /* rx carrier count, 4 bytes */
122 #define MCE_RSP_EQIRNUMPORTS 0x16 /* number of ports, 4 bytes */
123 #define MCE_RSP_EQWAKESUPPORT 0x20 /* wake capabilities, 3 bytes */
124 #define MCE_RSP_EQWAKEVERSION 0x18 /* wake pattern details, 6 bytes */
125 #define MCE_RSP_EQDEVDETAILS 0x21 /* device capabilities, 3 bytes */
126 #define MCE_RSP_EQEMVER 0x22 /* emulator interface ver, 3 bytes */
127 #define MCE_RSP_FLASHLED 0x23 /* success flashing LED, 2 bytes */
128
129 /* Responses to error cases, must send MCE_CMD_RESUME to clear them */
130 #define MCE_RSP_CMD_ILLEGAL 0xfe /* illegal command for port, 2 bytes */
131 #define MCE_RSP_TX_TIMEOUT 0x81 /* tx timed out, 2 bytes */
132
133 /* Misc commands/responses not defined in the MCE remote/transceiver spec */
134 #define MCE_CMD_SIG_END 0x01 /* End of signal */
135 #define MCE_CMD_PING 0x03 /* Ping device */
136 #define MCE_CMD_UNKNOWN 0x04 /* Unknown */
137 #define MCE_CMD_UNKNOWN2 0x05 /* Unknown */
138 #define MCE_CMD_UNKNOWN3 0x09 /* Unknown */
139 #define MCE_CMD_UNKNOWN4 0x0a /* Unknown */
140 #define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */
141 #define MCE_CMD_UNKNOWN5 0x0e /* Unknown */
142 #define MCE_CMD_UNKNOWN6 0x0f /* Unknown */
143 #define MCE_CMD_UNKNOWN8 0x19 /* Unknown */
144 #define MCE_CMD_UNKNOWN9 0x1b /* Unknown */
145 #define MCE_CMD_NULL 0x00 /* These show up various places... */
146
147 /* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR,
148 * then we're looking at a raw IR data sample */
149 #define MCE_COMMAND_IRDATA 0x80
150 #define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
151
152 #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_GEN2_TX_INV,
185 MCE_GEN2_TX_INV_RX_GOOD,
186 POLARIS_EVK,
187 CX_HYBRID_TV,
188 MULTIFUNCTION,
189 TIVO_KIT,
190 MCE_GEN2_NO_TX,
191 HAUPPAUGE_CX_HYBRID_TV,
192 EVROMEDIA_FULL_HYBRID_FULLHD,
193 ASTROMETA_T2HYBRID,
194 };
195
196 struct mceusb_model {
197 u32 mce_gen1:1;
198 u32 mce_gen2:1;
199 u32 mce_gen3:1;
200 u32 tx_mask_normal:1;
201 u32 no_tx:1;
202 /*
203 * 2nd IR receiver (short-range, wideband) for learning mode:
204 * 0, absent 2nd receiver (rx2)
205 * 1, rx2 present
206 * 2, rx2 which under counts IR carrier cycles
207 */
208 u32 rx2;
209
210 int ir_intfnum;
211
212 const char *rc_map; /* Allow specify a per-board map */
213 const char *name; /* per-board name */
214 };
215
216 static const struct mceusb_model mceusb_model[] = {
217 [MCE_GEN1] = {
218 .mce_gen1 = 1,
219 .tx_mask_normal = 1,
220 .rx2 = 2,
221 },
222 [MCE_GEN2] = {
223 .mce_gen2 = 1,
224 .rx2 = 2,
225 },
226 [MCE_GEN2_NO_TX] = {
227 .mce_gen2 = 1,
228 .no_tx = 1,
229 },
230 [MCE_GEN2_TX_INV] = {
231 .mce_gen2 = 1,
232 .tx_mask_normal = 1,
233 .rx2 = 1,
234 },
235 [MCE_GEN2_TX_INV_RX_GOOD] = {
236 .mce_gen2 = 1,
237 .tx_mask_normal = 1,
238 .rx2 = 2,
239 },
240 [MCE_GEN3] = {
241 .mce_gen3 = 1,
242 .tx_mask_normal = 1,
243 .rx2 = 2,
244 },
245 [POLARIS_EVK] = {
246 /*
247 * In fact, the EVK is shipped without
248 * remotes, but we should have something handy,
249 * to allow testing it
250 */
251 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
252 .rx2 = 2,
253 },
254 [CX_HYBRID_TV] = {
255 .no_tx = 1, /* tx isn't wired up at all */
256 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
257 },
258 [HAUPPAUGE_CX_HYBRID_TV] = {
259 .no_tx = 1, /* eeprom says it has no tx */
260 .name = "Conexant Hybrid TV (cx231xx) MCE IR no TX",
261 },
262 [MULTIFUNCTION] = {
263 .mce_gen2 = 1,
264 .ir_intfnum = 2,
265 .rx2 = 2,
266 },
267 [TIVO_KIT] = {
268 .mce_gen2 = 1,
269 .rc_map = RC_MAP_TIVO,
270 .rx2 = 2,
271 },
272 [EVROMEDIA_FULL_HYBRID_FULLHD] = {
273 .name = "Evromedia USB Full Hybrid Full HD",
274 .no_tx = 1,
275 .rc_map = RC_MAP_MSI_DIGIVOX_III,
276 },
277 [ASTROMETA_T2HYBRID] = {
278 .name = "Astrometa T2Hybrid",
279 .no_tx = 1,
280 .rc_map = RC_MAP_ASTROMETA_T2HYBRID,
281 }
282 };
283
284 static const struct usb_device_id mceusb_dev_table[] = {
285 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
286 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
287 .driver_info = MCE_GEN1 },
288 /* Philips Infrared Transceiver - Sahara branded */
289 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
290 /* Philips Infrared Transceiver - HP branded */
291 { USB_DEVICE(VENDOR_PHILIPS, 0x060c),
292 .driver_info = MCE_GEN2_TX_INV },
293 /* Philips SRM5100 */
294 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
295 /* Philips Infrared Transceiver - Omaura */
296 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
297 /* Philips Infrared Transceiver - Spinel plus */
298 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
299 /* Philips eHome Infrared Transceiver */
300 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
301 /* Philips/Spinel plus IR transceiver for ASUS */
302 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
303 /* Philips/Spinel plus IR transceiver for ASUS */
304 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
305 /* Philips IR transceiver (Dell branded) */
306 { USB_DEVICE(VENDOR_PHILIPS, 0x2093),
307 .driver_info = MCE_GEN2_TX_INV },
308 /* Realtek MCE IR Receiver and card reader */
309 { USB_DEVICE(VENDOR_REALTEK, 0x0161),
310 .driver_info = MULTIFUNCTION },
311 /* SMK/Toshiba G83C0004D410 */
312 { USB_DEVICE(VENDOR_SMK, 0x031d),
313 .driver_info = MCE_GEN2_TX_INV_RX_GOOD },
314 /* SMK eHome Infrared Transceiver (Sony VAIO) */
315 { USB_DEVICE(VENDOR_SMK, 0x0322),
316 .driver_info = MCE_GEN2_TX_INV },
317 /* bundled with Hauppauge PVR-150 */
318 { USB_DEVICE(VENDOR_SMK, 0x0334),
319 .driver_info = MCE_GEN2_TX_INV },
320 /* SMK eHome Infrared Transceiver */
321 { USB_DEVICE(VENDOR_SMK, 0x0338) },
322 /* SMK/I-O Data GV-MC7/RCKIT Receiver */
323 { USB_DEVICE(VENDOR_SMK, 0x0353),
324 .driver_info = MCE_GEN2_NO_TX },
325 /* SMK RXX6000 Infrared Receiver */
326 { USB_DEVICE(VENDOR_SMK, 0x0357),
327 .driver_info = MCE_GEN2_NO_TX },
328 /* Tatung eHome Infrared Transceiver */
329 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
330 /* Shuttle eHome Infrared Transceiver */
331 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
332 /* Shuttle eHome Infrared Transceiver */
333 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
334 /* Gateway eHome Infrared Transceiver */
335 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
336 /* Mitsumi */
337 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
338 /* Topseed eHome Infrared Transceiver */
339 { USB_DEVICE(VENDOR_TOPSEED, 0x0001),
340 .driver_info = MCE_GEN2_TX_INV },
341 /* Topseed HP eHome Infrared Transceiver */
342 { USB_DEVICE(VENDOR_TOPSEED, 0x0006),
343 .driver_info = MCE_GEN2_TX_INV },
344 /* Topseed eHome Infrared Transceiver */
345 { USB_DEVICE(VENDOR_TOPSEED, 0x0007),
346 .driver_info = MCE_GEN2_TX_INV },
347 /* Topseed eHome Infrared Transceiver */
348 { USB_DEVICE(VENDOR_TOPSEED, 0x0008),
349 .driver_info = MCE_GEN3 },
350 /* Topseed eHome Infrared Transceiver */
351 { USB_DEVICE(VENDOR_TOPSEED, 0x000a),
352 .driver_info = MCE_GEN2_TX_INV },
353 /* Topseed eHome Infrared Transceiver */
354 { USB_DEVICE(VENDOR_TOPSEED, 0x0011),
355 .driver_info = MCE_GEN3 },
356 /* Ricavision internal Infrared Transceiver */
357 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
358 /* Itron ione Libra Q-11 */
359 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
360 /* FIC eHome Infrared Transceiver */
361 { USB_DEVICE(VENDOR_FIC, 0x9242) },
362 /* LG eHome Infrared Transceiver */
363 { USB_DEVICE(VENDOR_LG, 0x9803) },
364 /* Microsoft MCE Infrared Transceiver */
365 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
366 /* Formosa eHome Infrared Transceiver */
367 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
368 /* Formosa21 / eHome Infrared Receiver */
369 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
370 /* Formosa aim / Trust MCE Infrared Receiver */
371 { USB_DEVICE(VENDOR_FORMOSA, 0xe017),
372 .driver_info = MCE_GEN2_NO_TX },
373 /* Formosa Industrial Computing / Beanbag Emulation Device */
374 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
375 /* Formosa21 / eHome Infrared Receiver */
376 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
377 /* Formosa Industrial Computing AIM IR605/A */
378 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
379 /* Formosa Industrial Computing */
380 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
381 /* Formosa Industrial Computing */
382 { USB_DEVICE(VENDOR_FORMOSA, 0xe042) },
383 /* Fintek eHome Infrared Transceiver (HP branded) */
384 { USB_DEVICE(VENDOR_FINTEK, 0x5168),
385 .driver_info = MCE_GEN2_TX_INV },
386 /* Fintek eHome Infrared Transceiver */
387 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
388 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
389 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
390 /* Pinnacle Remote Kit */
391 { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
392 .driver_info = MCE_GEN3 },
393 /* Elitegroup Computer Systems IR */
394 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
395 /* Wistron Corp. eHome Infrared Receiver */
396 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
397 /* Compro K100 */
398 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
399 /* Compro K100 v2 */
400 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
401 /* Northstar Systems, Inc. eHome Infrared Transceiver */
402 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
403 /* TiVo PC IR Receiver */
404 { USB_DEVICE(VENDOR_TIVO, 0x2000),
405 .driver_info = TIVO_KIT },
406 /* Conexant Hybrid TV "Shelby" Polaris SDK */
407 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
408 .driver_info = POLARIS_EVK },
409 /* Conexant Hybrid TV RDU253S Polaris */
410 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
411 .driver_info = CX_HYBRID_TV },
412 /* Twisted Melon Inc. - Manta Mini Receiver */
413 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8008) },
414 /* Twisted Melon Inc. - Manta Pico Receiver */
415 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8016) },
416 /* Twisted Melon Inc. - Manta Transceiver */
417 { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8042) },
418 /* Hauppauge WINTV-HVR-HVR 930C-HD - based on cx231xx */
419 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb130),
420 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
421 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb131),
422 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
423 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb138),
424 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
425 { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb139),
426 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
427 { USB_DEVICE(VENDOR_PCTV, 0x0259),
428 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
429 { USB_DEVICE(VENDOR_PCTV, 0x025e),
430 .driver_info = HAUPPAUGE_CX_HYBRID_TV },
431 /* Adaptec / HP eHome Receiver */
432 { USB_DEVICE(VENDOR_ADAPTEC, 0x0094) },
433 /* Evromedia USB Full Hybrid Full HD */
434 { USB_DEVICE(0x1b80, 0xd3b2),
435 .driver_info = EVROMEDIA_FULL_HYBRID_FULLHD },
436 /* Astrometa T2hybrid */
437 { USB_DEVICE(0x15f4, 0x0135),
438 .driver_info = ASTROMETA_T2HYBRID },
439
440 /* Terminating entry */
441 { }
442 };
443
444 /* data structure for each usb transceiver */
445 struct mceusb_dev {
446 /* ir-core bits */
447 struct rc_dev *rc;
448
449 /* optional features we can enable */
450 bool carrier_report_enabled;
451 bool wideband_rx_enabled; /* aka learning mode, short-range rx */
452
453 /* core device bits */
454 struct device *dev;
455
456 /* usb */
457 struct usb_device *usbdev;
458 struct urb *urb_in;
459 unsigned int pipe_in;
460 struct usb_endpoint_descriptor *usb_ep_out;
461 unsigned int pipe_out;
462
463 /* buffers and dma */
464 unsigned char *buf_in;
465 unsigned int len_in;
466 dma_addr_t dma_in;
467
468 enum {
469 CMD_HEADER = 0,
470 SUBCMD,
471 CMD_DATA,
472 PARSE_IRDATA,
473 } parser_state;
474
475 u8 cmd, rem; /* Remaining IR data bytes in packet */
476
477 struct {
478 u32 connected:1;
479 u32 tx_mask_normal:1;
480 u32 microsoft_gen1:1;
481 u32 no_tx:1;
482 u32 rx2;
483 } flags;
484
485 /* transmit support */
486 u32 carrier;
487 unsigned char tx_mask;
488
489 char name[128];
490 char phys[64];
491 enum mceusb_model_type model;
492
493 bool need_reset; /* flag to issue a device resume cmd */
494 u8 emver; /* emulator interface version */
495 u8 num_txports; /* number of transmit ports */
496 u8 num_rxports; /* number of receive sensors */
497 u8 txports_cabled; /* bitmask of transmitters with cable */
498 u8 rxports_active; /* bitmask of active receive sensors */
499 bool learning_active; /* wideband rx is active */
500
501 /* receiver carrier frequency detection support */
502 u32 pulse_tunit; /* IR pulse "on" cumulative time units */
503 u32 pulse_count; /* pulse "on" count in measurement interval */
504
505 /*
506 * support for async error handler mceusb_deferred_kevent()
507 * where usb_clear_halt(), usb_reset_configuration(),
508 * usb_reset_device(), etc. must be done in process context
509 */
510 struct work_struct kevent;
511 unsigned long kevent_flags;
512 # define EVENT_TX_HALT 0
513 # define EVENT_RX_HALT 1
514 };
515
516 /* MCE Device Command Strings, generally a port and command pair */
517 static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS,
518 MCE_CMD_RESUME};
519 static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION};
520 static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER};
521 static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION};
522 static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED};
523 static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2};
524 static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS};
525 static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT};
526 static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS};
527 static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS};
528 static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN};
529 /* sub in desired values in lower byte or bytes for full command */
530 /* FIXME: make use of these for transmit.
531 static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR,
532 MCE_CMD_SETIRCFS, 0x00, 0x00};
533 static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00};
534 static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR,
535 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00};
536 static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR,
537 MCE_RSP_EQIRRXPORTEN, 0x00};
538 */
539
540 static int mceusb_cmd_datasize(u8 cmd, u8 subcmd)
541 {
542 int datasize = 0;
543
544 switch (cmd) {
545 case MCE_CMD_NULL:
546 if (subcmd == MCE_CMD_PORT_SYS)
547 datasize = 1;
548 break;
549 case MCE_CMD_PORT_SYS:
550 switch (subcmd) {
551 case MCE_RSP_GETPORTSTATUS:
552 datasize = 5;
553 break;
554 case MCE_RSP_EQWAKEVERSION:
555 datasize = 4;
556 break;
557 case MCE_CMD_G_REVISION:
558 datasize = 2;
559 break;
560 case MCE_RSP_EQWAKESUPPORT:
561 case MCE_RSP_GETWAKESOURCE:
562 case MCE_RSP_EQDEVDETAILS:
563 case MCE_RSP_EQEMVER:
564 datasize = 1;
565 break;
566 }
567 case MCE_CMD_PORT_IR:
568 switch (subcmd) {
569 case MCE_CMD_UNKNOWN:
570 case MCE_RSP_EQIRCFS:
571 case MCE_RSP_EQIRTIMEOUT:
572 case MCE_RSP_EQIRRXCFCNT:
573 case MCE_RSP_EQIRNUMPORTS:
574 datasize = 2;
575 break;
576 case MCE_CMD_SIG_END:
577 case MCE_RSP_EQIRTXPORTS:
578 case MCE_RSP_EQIRRXPORTEN:
579 datasize = 1;
580 break;
581 }
582 }
583 return datasize;
584 }
585
586 static void mceusb_dev_printdata(struct mceusb_dev *ir, u8 *buf, int buf_len,
587 int offset, int len, bool out)
588 {
589 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
590 char *inout;
591 u8 cmd, subcmd, *data;
592 struct device *dev = ir->dev;
593 int start, skip = 0;
594 u32 carrier, period;
595
596 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
597 if (ir->flags.microsoft_gen1 && !out && !offset)
598 skip = 2;
599
600 if (len <= skip)
601 return;
602
603 dev_dbg(dev, "%cx data: %*ph (length=%d)",
604 (out ? 't' : 'r'),
605 min(len, buf_len - offset), buf + offset, len);
606
607 inout = out ? "Request" : "Got";
608
609 start = offset + skip;
610 cmd = buf[start] & 0xff;
611 subcmd = buf[start + 1] & 0xff;
612 data = buf + start + 2;
613
614 switch (cmd) {
615 case MCE_CMD_NULL:
616 if (subcmd == MCE_CMD_NULL)
617 break;
618 if ((subcmd == MCE_CMD_PORT_SYS) &&
619 (data[0] == MCE_CMD_RESUME))
620 dev_dbg(dev, "Device resume requested");
621 else
622 dev_dbg(dev, "Unknown command 0x%02x 0x%02x",
623 cmd, subcmd);
624 break;
625 case MCE_CMD_PORT_SYS:
626 switch (subcmd) {
627 case MCE_RSP_EQEMVER:
628 if (!out)
629 dev_dbg(dev, "Emulator interface version %x",
630 data[0]);
631 break;
632 case MCE_CMD_G_REVISION:
633 if (len == 2)
634 dev_dbg(dev, "Get hw/sw rev?");
635 else
636 dev_dbg(dev, "hw/sw rev %*ph",
637 4, &buf[start + 2]);
638 break;
639 case MCE_CMD_RESUME:
640 dev_dbg(dev, "Device resume requested");
641 break;
642 case MCE_RSP_CMD_ILLEGAL:
643 dev_dbg(dev, "Illegal PORT_SYS command");
644 break;
645 case MCE_RSP_EQWAKEVERSION:
646 if (!out)
647 dev_dbg(dev, "Wake version, proto: 0x%02x, payload: 0x%02x, address: 0x%02x, version: 0x%02x",
648 data[0], data[1], data[2], data[3]);
649 break;
650 case MCE_RSP_GETPORTSTATUS:
651 if (!out)
652 /* We use data1 + 1 here, to match hw labels */
653 dev_dbg(dev, "TX port %d: blaster is%s connected",
654 data[0] + 1, data[3] ? " not" : "");
655 break;
656 case MCE_CMD_FLASHLED:
657 dev_dbg(dev, "Attempting to flash LED");
658 break;
659 default:
660 dev_dbg(dev, "Unknown command 0x%02x 0x%02x",
661 cmd, subcmd);
662 break;
663 }
664 break;
665 case MCE_CMD_PORT_IR:
666 switch (subcmd) {
667 case MCE_CMD_SIG_END:
668 dev_dbg(dev, "End of signal");
669 break;
670 case MCE_CMD_PING:
671 dev_dbg(dev, "Ping");
672 break;
673 case MCE_CMD_UNKNOWN:
674 dev_dbg(dev, "Resp to 9f 05 of 0x%02x 0x%02x",
675 data[0], data[1]);
676 break;
677 case MCE_RSP_EQIRCFS:
678 period = DIV_ROUND_CLOSEST((1U << data[0] * 2) *
679 (data[1] + 1), 10);
680 if (!period)
681 break;
682 carrier = (1000 * 1000) / period;
683 dev_dbg(dev, "%s carrier of %u Hz (period %uus)",
684 inout, carrier, period);
685 break;
686 case MCE_CMD_GETIRCFS:
687 dev_dbg(dev, "Get carrier mode and freq");
688 break;
689 case MCE_RSP_EQIRTXPORTS:
690 dev_dbg(dev, "%s transmit blaster mask of 0x%02x",
691 inout, data[0]);
692 break;
693 case MCE_RSP_EQIRTIMEOUT:
694 /* value is in units of 50us, so x*50/1000 ms */
695 period = ((data[0] << 8) | data[1]) *
696 MCE_TIME_UNIT / 1000;
697 dev_dbg(dev, "%s receive timeout of %d ms",
698 inout, period);
699 break;
700 case MCE_CMD_GETIRTIMEOUT:
701 dev_dbg(dev, "Get receive timeout");
702 break;
703 case MCE_CMD_GETIRTXPORTS:
704 dev_dbg(dev, "Get transmit blaster mask");
705 break;
706 case MCE_RSP_EQIRRXPORTEN:
707 dev_dbg(dev, "%s %s-range receive sensor in use",
708 inout, data[0] == 0x02 ? "short" : "long");
709 break;
710 case MCE_CMD_GETIRRXPORTEN:
711 /* aka MCE_RSP_EQIRRXCFCNT */
712 if (out)
713 dev_dbg(dev, "Get receive sensor");
714 else
715 dev_dbg(dev, "RX carrier cycle count: %d",
716 ((data[0] << 8) | data[1]));
717 break;
718 case MCE_RSP_EQIRNUMPORTS:
719 if (out)
720 break;
721 dev_dbg(dev, "Num TX ports: %x, num RX ports: %x",
722 data[0], data[1]);
723 break;
724 case MCE_RSP_CMD_ILLEGAL:
725 dev_dbg(dev, "Illegal PORT_IR command");
726 break;
727 default:
728 dev_dbg(dev, "Unknown command 0x%02x 0x%02x",
729 cmd, subcmd);
730 break;
731 }
732 break;
733 default:
734 break;
735 }
736
737 if (cmd == MCE_IRDATA_TRAILER)
738 dev_dbg(dev, "End of raw IR data");
739 else if ((cmd != MCE_CMD_PORT_IR) &&
740 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA))
741 dev_dbg(dev, "Raw IR data, %d pulse/space samples", ir->rem);
742 #endif
743 }
744
745 /*
746 * Schedule work that can't be done in interrupt handlers
747 * (mceusb_dev_recv() and mce_async_callback()) nor tasklets.
748 * Invokes mceusb_deferred_kevent() for recovering from
749 * error events specified by the kevent bit field.
750 */
751 static void mceusb_defer_kevent(struct mceusb_dev *ir, int kevent)
752 {
753 set_bit(kevent, &ir->kevent_flags);
754 if (!schedule_work(&ir->kevent))
755 dev_err(ir->dev, "kevent %d may have been dropped", kevent);
756 else
757 dev_dbg(ir->dev, "kevent %d scheduled", kevent);
758 }
759
760 static void mce_async_callback(struct urb *urb)
761 {
762 struct mceusb_dev *ir;
763 int len;
764
765 if (!urb)
766 return;
767
768 ir = urb->context;
769
770 switch (urb->status) {
771 /* success */
772 case 0:
773 len = urb->actual_length;
774
775 mceusb_dev_printdata(ir, urb->transfer_buffer, len,
776 0, len, true);
777 break;
778
779 case -ECONNRESET:
780 case -ENOENT:
781 case -EILSEQ:
782 case -ESHUTDOWN:
783 break;
784
785 case -EPIPE:
786 dev_err(ir->dev, "Error: request urb status = %d (TX HALT)",
787 urb->status);
788 mceusb_defer_kevent(ir, EVENT_TX_HALT);
789 break;
790
791 default:
792 dev_err(ir->dev, "Error: request urb status = %d", urb->status);
793 break;
794 }
795
796 /* the transfer buffer and urb were allocated in mce_request_packet */
797 kfree(urb->transfer_buffer);
798 usb_free_urb(urb);
799 }
800
801 /* request outgoing (send) usb packet - used to initialize remote */
802 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data,
803 int size)
804 {
805 int res;
806 struct urb *async_urb;
807 struct device *dev = ir->dev;
808 unsigned char *async_buf;
809
810 async_urb = usb_alloc_urb(0, GFP_KERNEL);
811 if (unlikely(!async_urb)) {
812 dev_err(dev, "Error, couldn't allocate urb!");
813 return;
814 }
815
816 async_buf = kmalloc(size, GFP_KERNEL);
817 if (!async_buf) {
818 usb_free_urb(async_urb);
819 return;
820 }
821
822 /* outbound data */
823 if (usb_endpoint_xfer_int(ir->usb_ep_out))
824 usb_fill_int_urb(async_urb, ir->usbdev, ir->pipe_out,
825 async_buf, size, mce_async_callback, ir,
826 ir->usb_ep_out->bInterval);
827 else
828 usb_fill_bulk_urb(async_urb, ir->usbdev, ir->pipe_out,
829 async_buf, size, mce_async_callback, ir);
830
831 memcpy(async_buf, data, size);
832
833 dev_dbg(dev, "send request called (size=%#x)", size);
834
835 res = usb_submit_urb(async_urb, GFP_ATOMIC);
836 if (res) {
837 dev_err(dev, "send request FAILED! (res=%d)", res);
838 kfree(async_buf);
839 usb_free_urb(async_urb);
840 return;
841 }
842 dev_dbg(dev, "send request complete (res=%d)", res);
843 }
844
845 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
846 {
847 int rsize = sizeof(DEVICE_RESUME);
848
849 if (ir->need_reset) {
850 ir->need_reset = false;
851 mce_request_packet(ir, DEVICE_RESUME, rsize);
852 msleep(10);
853 }
854
855 mce_request_packet(ir, data, size);
856 msleep(10);
857 }
858
859 /* Send data out the IR blaster port(s) */
860 static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
861 {
862 struct mceusb_dev *ir = dev->priv;
863 int i, length, ret = 0;
864 int cmdcount = 0;
865 unsigned char cmdbuf[MCE_CMDBUF_SIZE];
866
867 /* MCE tx init header */
868 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR;
869 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS;
870 cmdbuf[cmdcount++] = ir->tx_mask;
871
872 /* Send the set TX ports command */
873 mce_async_out(ir, cmdbuf, cmdcount);
874 cmdcount = 0;
875
876 /* Generate mce packet data */
877 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
878 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
879
880 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
881
882 /* Insert mce packet header every 4th entry */
883 if ((cmdcount < MCE_CMDBUF_SIZE) &&
884 (cmdcount % MCE_CODE_LENGTH) == 0)
885 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
886
887 /* Insert mce packet data */
888 if (cmdcount < MCE_CMDBUF_SIZE)
889 cmdbuf[cmdcount++] =
890 (txbuf[i] < MCE_PULSE_BIT ?
891 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
892 (i & 1 ? 0x00 : MCE_PULSE_BIT);
893 else {
894 ret = -EINVAL;
895 goto out;
896 }
897
898 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
899 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
900 }
901
902 /* Check if we have room for the empty packet at the end */
903 if (cmdcount >= MCE_CMDBUF_SIZE) {
904 ret = -EINVAL;
905 goto out;
906 }
907
908 /* Fix packet length in last header */
909 length = cmdcount % MCE_CODE_LENGTH;
910 cmdbuf[cmdcount - length] -= MCE_CODE_LENGTH - length;
911
912 /* All mce commands end with an empty packet (0x80) */
913 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
914
915 /* Transmit the command to the mce device */
916 mce_async_out(ir, cmdbuf, cmdcount);
917
918 out:
919 return ret ? ret : count;
920 }
921
922 /* Sets active IR outputs -- mce devices typically have two */
923 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
924 {
925 struct mceusb_dev *ir = dev->priv;
926
927 /* return number of transmitters */
928 int emitters = ir->num_txports ? ir->num_txports : 2;
929
930 if (mask >= (1 << emitters))
931 return emitters;
932
933 if (ir->flags.tx_mask_normal)
934 ir->tx_mask = mask;
935 else
936 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
937 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
938
939 return 0;
940 }
941
942 /* Sets the send carrier frequency and mode */
943 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
944 {
945 struct mceusb_dev *ir = dev->priv;
946 int clk = 10000000;
947 int prescaler = 0, divisor = 0;
948 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR,
949 MCE_CMD_SETIRCFS, 0x00, 0x00 };
950
951 /* Carrier has changed */
952 if (ir->carrier != carrier) {
953
954 if (carrier == 0) {
955 ir->carrier = carrier;
956 cmdbuf[2] = MCE_CMD_SIG_END;
957 cmdbuf[3] = MCE_IRDATA_TRAILER;
958 dev_dbg(ir->dev, "disabling carrier modulation");
959 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
960 return 0;
961 }
962
963 for (prescaler = 0; prescaler < 4; ++prescaler) {
964 divisor = (clk >> (2 * prescaler)) / carrier;
965 if (divisor <= 0xff) {
966 ir->carrier = carrier;
967 cmdbuf[2] = prescaler;
968 cmdbuf[3] = divisor;
969 dev_dbg(ir->dev, "requesting %u HZ carrier",
970 carrier);
971
972 /* Transmit new carrier to mce device */
973 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
974 return 0;
975 }
976 }
977
978 return -EINVAL;
979
980 }
981
982 return 0;
983 }
984
985 /*
986 * Select or deselect the 2nd receiver port.
987 * Second receiver is learning mode, wide-band, short-range receiver.
988 * Only one receiver (long or short range) may be active at a time.
989 */
990 static int mceusb_set_rx_wideband(struct rc_dev *dev, int enable)
991 {
992 struct mceusb_dev *ir = dev->priv;
993 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR,
994 MCE_CMD_SETIRRXPORTEN, 0x00 };
995
996 dev_dbg(ir->dev, "select %s-range receive sensor",
997 enable ? "short" : "long");
998 if (enable) {
999 ir->wideband_rx_enabled = true;
1000 cmdbuf[2] = 2; /* port 2 is short range receiver */
1001 } else {
1002 ir->wideband_rx_enabled = false;
1003 cmdbuf[2] = 1; /* port 1 is long range receiver */
1004 }
1005 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1006 /* response from device sets ir->learning_active */
1007
1008 return 0;
1009 }
1010
1011 /*
1012 * Enable/disable receiver carrier frequency pass through reporting.
1013 * Only the short-range receiver has carrier frequency measuring capability.
1014 * Implicitly select this receiver when enabling carrier frequency reporting.
1015 */
1016 static int mceusb_set_rx_carrier_report(struct rc_dev *dev, int enable)
1017 {
1018 struct mceusb_dev *ir = dev->priv;
1019 unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR,
1020 MCE_CMD_SETIRRXPORTEN, 0x00 };
1021
1022 dev_dbg(ir->dev, "%s short-range receiver carrier reporting",
1023 enable ? "enable" : "disable");
1024 if (enable) {
1025 ir->carrier_report_enabled = true;
1026 if (!ir->learning_active) {
1027 cmdbuf[2] = 2; /* port 2 is short range receiver */
1028 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1029 }
1030 } else {
1031 ir->carrier_report_enabled = false;
1032 /*
1033 * Revert to normal (long-range) receiver only if the
1034 * wideband (short-range) receiver wasn't explicitly
1035 * enabled.
1036 */
1037 if (ir->learning_active && !ir->wideband_rx_enabled) {
1038 cmdbuf[2] = 1; /* port 1 is long range receiver */
1039 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1040 }
1041 }
1042
1043 return 0;
1044 }
1045
1046 /*
1047 * We don't do anything but print debug spew for many of the command bits
1048 * we receive from the hardware, but some of them are useful information
1049 * we want to store so that we can use them.
1050 */
1051 static void mceusb_handle_command(struct mceusb_dev *ir, int index)
1052 {
1053 DEFINE_IR_RAW_EVENT(rawir);
1054 u8 hi = ir->buf_in[index + 1] & 0xff;
1055 u8 lo = ir->buf_in[index + 2] & 0xff;
1056 u32 carrier_cycles;
1057 u32 cycles_fix;
1058
1059 switch (ir->buf_in[index]) {
1060 /* the one and only 5-byte return value command */
1061 case MCE_RSP_GETPORTSTATUS:
1062 if ((ir->buf_in[index + 4] & 0xff) == 0x00)
1063 ir->txports_cabled |= 1 << hi;
1064 break;
1065
1066 /* 2-byte return value commands */
1067 case MCE_RSP_EQIRTIMEOUT:
1068 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);
1069 break;
1070 case MCE_RSP_EQIRNUMPORTS:
1071 ir->num_txports = hi;
1072 ir->num_rxports = lo;
1073 break;
1074 case MCE_RSP_EQIRRXCFCNT:
1075 /*
1076 * The carrier cycle counter can overflow and wrap around
1077 * without notice from the device. So frequency measurement
1078 * will be inaccurate with long duration IR.
1079 *
1080 * The long-range (non learning) receiver always reports
1081 * zero count so we always ignore its report.
1082 */
1083 if (ir->carrier_report_enabled && ir->learning_active &&
1084 ir->pulse_tunit > 0) {
1085 carrier_cycles = (hi << 8 | lo);
1086 /*
1087 * Adjust carrier cycle count by adding
1088 * 1 missed count per pulse "on"
1089 */
1090 cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0;
1091 rawir.carrier_report = 1;
1092 rawir.carrier = (1000000u / MCE_TIME_UNIT) *
1093 (carrier_cycles + cycles_fix) /
1094 ir->pulse_tunit;
1095 dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = %u)",
1096 rawir.carrier, ir->pulse_count, carrier_cycles,
1097 ir->pulse_tunit, ir->flags.rx2);
1098 ir_raw_event_store(ir->rc, &rawir);
1099 }
1100 break;
1101
1102 /* 1-byte return value commands */
1103 case MCE_RSP_EQEMVER:
1104 ir->emver = hi;
1105 break;
1106 case MCE_RSP_EQIRTXPORTS:
1107 ir->tx_mask = hi;
1108 break;
1109 case MCE_RSP_EQIRRXPORTEN:
1110 ir->learning_active = ((hi & 0x02) == 0x02);
1111 if (ir->rxports_active != hi) {
1112 dev_info(ir->dev, "%s-range (0x%x) receiver active",
1113 ir->learning_active ? "short" : "long", hi);
1114 ir->rxports_active = hi;
1115 }
1116 break;
1117 case MCE_RSP_CMD_ILLEGAL:
1118 ir->need_reset = true;
1119 break;
1120 default:
1121 break;
1122 }
1123 }
1124
1125 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
1126 {
1127 DEFINE_IR_RAW_EVENT(rawir);
1128 bool event = false;
1129 int i = 0;
1130
1131 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
1132 if (ir->flags.microsoft_gen1)
1133 i = 2;
1134
1135 /* if there's no data, just return now */
1136 if (buf_len <= i)
1137 return;
1138
1139 for (; i < buf_len; i++) {
1140 switch (ir->parser_state) {
1141 case SUBCMD:
1142 ir->rem = mceusb_cmd_datasize(ir->cmd, ir->buf_in[i]);
1143 mceusb_dev_printdata(ir, ir->buf_in, buf_len, i - 1,
1144 ir->rem + 2, false);
1145 mceusb_handle_command(ir, i);
1146 ir->parser_state = CMD_DATA;
1147 break;
1148 case PARSE_IRDATA:
1149 ir->rem--;
1150 init_ir_raw_event(&rawir);
1151 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
1152 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK);
1153 if (rawir.pulse) {
1154 ir->pulse_tunit += rawir.duration;
1155 ir->pulse_count++;
1156 }
1157 rawir.duration *= US_TO_NS(MCE_TIME_UNIT);
1158
1159 dev_dbg(ir->dev, "Storing %s %u ns (%02x)",
1160 rawir.pulse ? "pulse" : "space",
1161 rawir.duration, ir->buf_in[i]);
1162
1163 if (ir_raw_event_store_with_filter(ir->rc, &rawir))
1164 event = true;
1165 break;
1166 case CMD_DATA:
1167 ir->rem--;
1168 break;
1169 case CMD_HEADER:
1170 /* decode mce packets of the form (84),AA,BB,CC,DD */
1171 /* IR data packets can span USB messages - rem */
1172 ir->cmd = ir->buf_in[i];
1173 if ((ir->cmd == MCE_CMD_PORT_IR) ||
1174 ((ir->cmd & MCE_PORT_MASK) !=
1175 MCE_COMMAND_IRDATA)) {
1176 ir->parser_state = SUBCMD;
1177 continue;
1178 }
1179 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
1180 mceusb_dev_printdata(ir, ir->buf_in, buf_len,
1181 i, ir->rem + 1, false);
1182 if (ir->rem) {
1183 ir->parser_state = PARSE_IRDATA;
1184 } else {
1185 ir_raw_event_reset(ir->rc);
1186 ir->pulse_tunit = 0;
1187 ir->pulse_count = 0;
1188 }
1189 break;
1190 }
1191
1192 if (ir->parser_state != CMD_HEADER && !ir->rem)
1193 ir->parser_state = CMD_HEADER;
1194 }
1195 if (event) {
1196 dev_dbg(ir->dev, "processed IR data");
1197 ir_raw_event_handle(ir->rc);
1198 }
1199 }
1200
1201 static void mceusb_dev_recv(struct urb *urb)
1202 {
1203 struct mceusb_dev *ir;
1204
1205 if (!urb)
1206 return;
1207
1208 ir = urb->context;
1209 if (!ir) {
1210 usb_unlink_urb(urb);
1211 return;
1212 }
1213
1214 switch (urb->status) {
1215 /* success */
1216 case 0:
1217 mceusb_process_ir_data(ir, urb->actual_length);
1218 break;
1219
1220 case -ECONNRESET:
1221 case -ENOENT:
1222 case -EILSEQ:
1223 case -ESHUTDOWN:
1224 usb_unlink_urb(urb);
1225 return;
1226
1227 case -EPIPE:
1228 dev_err(ir->dev, "Error: urb status = %d (RX HALT)",
1229 urb->status);
1230 mceusb_defer_kevent(ir, EVENT_RX_HALT);
1231 return;
1232
1233 default:
1234 dev_err(ir->dev, "Error: urb status = %d", urb->status);
1235 break;
1236 }
1237
1238 usb_submit_urb(urb, GFP_ATOMIC);
1239 }
1240
1241 static void mceusb_get_emulator_version(struct mceusb_dev *ir)
1242 {
1243 /* If we get no reply or an illegal command reply, its ver 1, says MS */
1244 ir->emver = 1;
1245 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER));
1246 }
1247
1248 static void mceusb_gen1_init(struct mceusb_dev *ir)
1249 {
1250 int ret;
1251 struct device *dev = ir->dev;
1252 char *data;
1253
1254 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
1255 if (!data) {
1256 dev_err(dev, "%s: memory allocation failed!", __func__);
1257 return;
1258 }
1259
1260 /*
1261 * This is a strange one. Windows issues a set address to the device
1262 * on the receive control pipe and expect a certain value pair back
1263 */
1264 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
1265 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
1266 data, USB_CTRL_MSG_SZ, HZ * 3);
1267 dev_dbg(dev, "set address - ret = %d", ret);
1268 dev_dbg(dev, "set address - data[0] = %d, data[1] = %d",
1269 data[0], data[1]);
1270
1271 /* set feature: bit rate 38400 bps */
1272 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1273 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
1274 0xc04e, 0x0000, NULL, 0, HZ * 3);
1275
1276 dev_dbg(dev, "set feature - ret = %d", ret);
1277
1278 /* bRequest 4: set char length to 8 bits */
1279 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1280 4, USB_TYPE_VENDOR,
1281 0x0808, 0x0000, NULL, 0, HZ * 3);
1282 dev_dbg(dev, "set char length - retB = %d", ret);
1283
1284 /* bRequest 2: set handshaking to use DTR/DSR */
1285 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1286 2, USB_TYPE_VENDOR,
1287 0x0000, 0x0100, NULL, 0, HZ * 3);
1288 dev_dbg(dev, "set handshake - retC = %d", ret);
1289
1290 /* device resume */
1291 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
1292
1293 /* get hw/sw revision? */
1294 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1295
1296 kfree(data);
1297 }
1298
1299 static void mceusb_gen2_init(struct mceusb_dev *ir)
1300 {
1301 /* device resume */
1302 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
1303
1304 /* get wake version (protocol, key, address) */
1305 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION));
1306
1307 /* unknown what this one actually returns... */
1308 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
1309 }
1310
1311 static void mceusb_get_parameters(struct mceusb_dev *ir)
1312 {
1313 int i;
1314 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS,
1315 MCE_CMD_GETPORTSTATUS, 0x00 };
1316
1317 /* defaults, if the hardware doesn't support querying */
1318 ir->num_txports = 2;
1319 ir->num_rxports = 2;
1320
1321 /* get number of tx and rx ports */
1322 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS));
1323
1324 /* get the carrier and frequency */
1325 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
1326
1327 if (ir->num_txports && !ir->flags.no_tx)
1328 /* get the transmitter bitmask */
1329 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
1330
1331 /* get receiver timeout value */
1332 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
1333
1334 /* get receiver sensor setting */
1335 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
1336
1337 for (i = 0; i < ir->num_txports; i++) {
1338 cmdbuf[2] = i;
1339 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1340 }
1341 }
1342
1343 static void mceusb_flash_led(struct mceusb_dev *ir)
1344 {
1345 if (ir->emver < 2)
1346 return;
1347
1348 mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED));
1349 }
1350
1351 /*
1352 * Workqueue function
1353 * for resetting or recovering device after occurrence of error events
1354 * specified in ir->kevent bit field.
1355 * Function runs (via schedule_work()) in non-interrupt context, for
1356 * calls here (such as usb_clear_halt()) requiring non-interrupt context.
1357 */
1358 static void mceusb_deferred_kevent(struct work_struct *work)
1359 {
1360 struct mceusb_dev *ir =
1361 container_of(work, struct mceusb_dev, kevent);
1362 int status;
1363
1364 if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) {
1365 usb_unlink_urb(ir->urb_in);
1366 status = usb_clear_halt(ir->usbdev, ir->pipe_in);
1367 if (status < 0) {
1368 dev_err(ir->dev, "rx clear halt error %d",
1369 status);
1370 }
1371 clear_bit(EVENT_RX_HALT, &ir->kevent_flags);
1372 if (status == 0) {
1373 status = usb_submit_urb(ir->urb_in, GFP_KERNEL);
1374 if (status < 0) {
1375 dev_err(ir->dev,
1376 "rx unhalt submit urb error %d",
1377 status);
1378 }
1379 }
1380 }
1381
1382 if (test_bit(EVENT_TX_HALT, &ir->kevent_flags)) {
1383 status = usb_clear_halt(ir->usbdev, ir->pipe_out);
1384 if (status < 0)
1385 dev_err(ir->dev, "tx clear halt error %d", status);
1386 clear_bit(EVENT_TX_HALT, &ir->kevent_flags);
1387 }
1388 }
1389
1390 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
1391 {
1392 struct usb_device *udev = ir->usbdev;
1393 struct device *dev = ir->dev;
1394 struct rc_dev *rc;
1395 int ret;
1396
1397 rc = rc_allocate_device(RC_DRIVER_IR_RAW);
1398 if (!rc) {
1399 dev_err(dev, "remote dev allocation failed");
1400 goto out;
1401 }
1402
1403 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
1404 mceusb_model[ir->model].name ?
1405 mceusb_model[ir->model].name :
1406 "Media Center Ed. eHome Infrared Remote Transceiver",
1407 le16_to_cpu(ir->usbdev->descriptor.idVendor),
1408 le16_to_cpu(ir->usbdev->descriptor.idProduct));
1409
1410 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
1411
1412 rc->device_name = ir->name;
1413 rc->input_phys = ir->phys;
1414 usb_to_input_id(ir->usbdev, &rc->input_id);
1415 rc->dev.parent = dev;
1416 rc->priv = ir;
1417 rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
1418 rc->timeout = MS_TO_NS(100);
1419 if (!ir->flags.no_tx) {
1420 rc->s_tx_mask = mceusb_set_tx_mask;
1421 rc->s_tx_carrier = mceusb_set_tx_carrier;
1422 rc->tx_ir = mceusb_tx_ir;
1423 }
1424 if (ir->flags.rx2 > 0) {
1425 rc->s_learning_mode = mceusb_set_rx_wideband;
1426 rc->s_carrier_report = mceusb_set_rx_carrier_report;
1427 }
1428 rc->driver_name = DRIVER_NAME;
1429
1430 switch (le16_to_cpu(udev->descriptor.idVendor)) {
1431 case VENDOR_HAUPPAUGE:
1432 rc->map_name = RC_MAP_HAUPPAUGE;
1433 break;
1434 case VENDOR_PCTV:
1435 rc->map_name = RC_MAP_PINNACLE_PCTV_HD;
1436 break;
1437 default:
1438 rc->map_name = RC_MAP_RC6_MCE;
1439 }
1440 if (mceusb_model[ir->model].rc_map)
1441 rc->map_name = mceusb_model[ir->model].rc_map;
1442
1443 ret = rc_register_device(rc);
1444 if (ret < 0) {
1445 dev_err(dev, "remote dev registration failed");
1446 goto out;
1447 }
1448
1449 return rc;
1450
1451 out:
1452 rc_free_device(rc);
1453 return NULL;
1454 }
1455
1456 static int mceusb_dev_probe(struct usb_interface *intf,
1457 const struct usb_device_id *id)
1458 {
1459 struct usb_device *dev = interface_to_usbdev(intf);
1460 struct usb_host_interface *idesc;
1461 struct usb_endpoint_descriptor *ep = NULL;
1462 struct usb_endpoint_descriptor *ep_in = NULL;
1463 struct usb_endpoint_descriptor *ep_out = NULL;
1464 struct mceusb_dev *ir = NULL;
1465 int pipe, maxp, i, res;
1466 char buf[63], name[128] = "";
1467 enum mceusb_model_type model = id->driver_info;
1468 bool is_gen3;
1469 bool is_microsoft_gen1;
1470 bool tx_mask_normal;
1471 int ir_intfnum;
1472
1473 dev_dbg(&intf->dev, "%s called", __func__);
1474
1475 idesc = intf->cur_altsetting;
1476
1477 is_gen3 = mceusb_model[model].mce_gen3;
1478 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1479 tx_mask_normal = mceusb_model[model].tx_mask_normal;
1480 ir_intfnum = mceusb_model[model].ir_intfnum;
1481
1482 /* There are multi-function devices with non-IR interfaces */
1483 if (idesc->desc.bInterfaceNumber != ir_intfnum)
1484 return -ENODEV;
1485
1486 /* step through the endpoints to find first bulk in and out endpoint */
1487 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1488 ep = &idesc->endpoint[i].desc;
1489
1490 if (ep_in == NULL) {
1491 if (usb_endpoint_is_bulk_in(ep)) {
1492 ep_in = ep;
1493 dev_dbg(&intf->dev, "acceptable bulk inbound endpoint found\n");
1494 } else if (usb_endpoint_is_int_in(ep)) {
1495 ep_in = ep;
1496 ep_in->bInterval = 1;
1497 dev_dbg(&intf->dev, "acceptable interrupt inbound endpoint found\n");
1498 }
1499 }
1500
1501 if (ep_out == NULL) {
1502 if (usb_endpoint_is_bulk_out(ep)) {
1503 ep_out = ep;
1504 dev_dbg(&intf->dev, "acceptable bulk outbound endpoint found\n");
1505 } else if (usb_endpoint_is_int_out(ep)) {
1506 ep_out = ep;
1507 ep_out->bInterval = 1;
1508 dev_dbg(&intf->dev, "acceptable interrupt outbound endpoint found\n");
1509 }
1510 }
1511 }
1512 if (!ep_in || !ep_out) {
1513 dev_dbg(&intf->dev, "required endpoints not found\n");
1514 return -ENODEV;
1515 }
1516
1517 if (usb_endpoint_xfer_int(ep_in))
1518 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1519 else
1520 pipe = usb_rcvbulkpipe(dev, ep_in->bEndpointAddress);
1521 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1522
1523 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1524 if (!ir)
1525 goto mem_alloc_fail;
1526
1527 ir->pipe_in = pipe;
1528 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1529 if (!ir->buf_in)
1530 goto buf_in_alloc_fail;
1531
1532 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1533 if (!ir->urb_in)
1534 goto urb_in_alloc_fail;
1535
1536 ir->usbdev = usb_get_dev(dev);
1537 ir->dev = &intf->dev;
1538 ir->len_in = maxp;
1539 ir->flags.microsoft_gen1 = is_microsoft_gen1;
1540 ir->flags.tx_mask_normal = tx_mask_normal;
1541 ir->flags.no_tx = mceusb_model[model].no_tx;
1542 ir->flags.rx2 = mceusb_model[model].rx2;
1543 ir->model = model;
1544
1545 /* Saving usb interface data for use by the transmitter routine */
1546 ir->usb_ep_out = ep_out;
1547 if (usb_endpoint_xfer_int(ep_out))
1548 ir->pipe_out = usb_sndintpipe(ir->usbdev,
1549 ep_out->bEndpointAddress);
1550 else
1551 ir->pipe_out = usb_sndbulkpipe(ir->usbdev,
1552 ep_out->bEndpointAddress);
1553
1554 if (dev->descriptor.iManufacturer
1555 && usb_string(dev, dev->descriptor.iManufacturer,
1556 buf, sizeof(buf)) > 0)
1557 strlcpy(name, buf, sizeof(name));
1558 if (dev->descriptor.iProduct
1559 && usb_string(dev, dev->descriptor.iProduct,
1560 buf, sizeof(buf)) > 0)
1561 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1562 " %s", buf);
1563
1564 /*
1565 * Initialize async USB error handler before registering
1566 * or activating any mceusb RX and TX functions
1567 */
1568 INIT_WORK(&ir->kevent, mceusb_deferred_kevent);
1569
1570 ir->rc = mceusb_init_rc_dev(ir);
1571 if (!ir->rc)
1572 goto rc_dev_fail;
1573
1574 /* wire up inbound data handler */
1575 if (usb_endpoint_xfer_int(ep_in))
1576 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,
1577 mceusb_dev_recv, ir, ep_in->bInterval);
1578 else
1579 usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,
1580 mceusb_dev_recv, ir);
1581
1582 ir->urb_in->transfer_dma = ir->dma_in;
1583 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1584
1585 /* flush buffers on the device */
1586 dev_dbg(&intf->dev, "Flushing receive buffers");
1587 res = usb_submit_urb(ir->urb_in, GFP_KERNEL);
1588 if (res)
1589 dev_err(&intf->dev, "failed to flush buffers: %d", res);
1590
1591 /* figure out which firmware/emulator version this hardware has */
1592 mceusb_get_emulator_version(ir);
1593
1594 /* initialize device */
1595 if (ir->flags.microsoft_gen1)
1596 mceusb_gen1_init(ir);
1597 else if (!is_gen3)
1598 mceusb_gen2_init(ir);
1599
1600 mceusb_get_parameters(ir);
1601
1602 mceusb_flash_led(ir);
1603
1604 if (!ir->flags.no_tx)
1605 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
1606
1607 usb_set_intfdata(intf, ir);
1608
1609 /* enable wake via this device */
1610 device_set_wakeup_capable(ir->dev, true);
1611 device_set_wakeup_enable(ir->dev, true);
1612
1613 dev_info(&intf->dev, "Registered %s with mce emulator interface version %x",
1614 name, ir->emver);
1615 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and %x rx sensors (0x%x active)",
1616 ir->num_txports, ir->txports_cabled,
1617 ir->num_rxports, ir->rxports_active);
1618
1619 return 0;
1620
1621 /* Error-handling path */
1622 rc_dev_fail:
1623 cancel_work_sync(&ir->kevent);
1624 usb_put_dev(ir->usbdev);
1625 usb_kill_urb(ir->urb_in);
1626 usb_free_urb(ir->urb_in);
1627 urb_in_alloc_fail:
1628 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1629 buf_in_alloc_fail:
1630 kfree(ir);
1631 mem_alloc_fail:
1632 dev_err(&intf->dev, "%s: device setup failed!", __func__);
1633
1634 return -ENOMEM;
1635 }
1636
1637
1638 static void mceusb_dev_disconnect(struct usb_interface *intf)
1639 {
1640 struct usb_device *dev = interface_to_usbdev(intf);
1641 struct mceusb_dev *ir = usb_get_intfdata(intf);
1642
1643 usb_set_intfdata(intf, NULL);
1644
1645 if (!ir)
1646 return;
1647
1648 ir->usbdev = NULL;
1649 cancel_work_sync(&ir->kevent);
1650 rc_unregister_device(ir->rc);
1651 usb_kill_urb(ir->urb_in);
1652 usb_free_urb(ir->urb_in);
1653 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1654 usb_put_dev(dev);
1655
1656 kfree(ir);
1657 }
1658
1659 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1660 {
1661 struct mceusb_dev *ir = usb_get_intfdata(intf);
1662 dev_info(ir->dev, "suspend");
1663 usb_kill_urb(ir->urb_in);
1664 return 0;
1665 }
1666
1667 static int mceusb_dev_resume(struct usb_interface *intf)
1668 {
1669 struct mceusb_dev *ir = usb_get_intfdata(intf);
1670 dev_info(ir->dev, "resume");
1671 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1672 return -EIO;
1673 return 0;
1674 }
1675
1676 static struct usb_driver mceusb_dev_driver = {
1677 .name = DRIVER_NAME,
1678 .probe = mceusb_dev_probe,
1679 .disconnect = mceusb_dev_disconnect,
1680 .suspend = mceusb_dev_suspend,
1681 .resume = mceusb_dev_resume,
1682 .reset_resume = mceusb_dev_resume,
1683 .id_table = mceusb_dev_table
1684 };
1685
1686 module_usb_driver(mceusb_dev_driver);
1687
1688 MODULE_DESCRIPTION(DRIVER_DESC);
1689 MODULE_AUTHOR(DRIVER_AUTHOR);
1690 MODULE_LICENSE("GPL");
1691 MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
Linux with added FPC-III support