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Merge branch 'for-linus' of git://git.infradead.org/users/sameo/mfd-2.6
[linux-btrfs-devel.git] / drivers / media / rc / mceusb.c
blob85ff9a1ffb391b4ccfa291539e027ffa2c8d10da
1 /*
2 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
3 *
4 * Copyright (c) 2010 by Jarod Wilson <jarod@redhat.com>
5 *
6 * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan
7 * Conti, Martin Blatter and Daniel Melander, the latter of which was
8 * in turn also based on the lirc_atiusb driver by Paul Miller. The
9 * two mce drivers were merged into one by Jarod Wilson, with transmit
10 * support for the 1st-gen device added primarily by Patrick Calhoun,
11 * with a bit of tweaks by Jarod. Debugging improvements and proper
12 * support for what appears to be 3rd-gen hardware added by Jarod.
13 * Initial port from lirc driver to ir-core drivery by Jarod, based
14 * partially on a port to an earlier proposed IR infrastructure by
15 * Jon Smirl, which included enhancements and simplifications to the
16 * incoming IR buffer parsing routines.
17 *
18 *
19 * This program is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 2 of the License, or
22 * (at your option) any later version.
23 *
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
32 *
33 */
34
35 #include <linux/device.h>
36 #include <linux/module.h>
37 #include <linux/slab.h>
38 #include <linux/usb.h>
39 #include <linux/usb/input.h>
40 #include <media/rc-core.h>
41
42 #define DRIVER_VERSION "1.91"
43 #define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>"
44 #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
45 "device driver"
46 #define DRIVER_NAME "mceusb"
47
48 #define USB_BUFLEN 32 /* USB reception buffer length */
49 #define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */
50 #define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */
51
52 /* MCE constants */
53 #define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */
54 #define MCE_TIME_UNIT 50 /* Approx 50us resolution */
55 #define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */
56 #define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */
57 #define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */
58 #define MCE_IRDATA_TRAILER 0x80 /* End of IR data */
59 #define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */
60 #define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */
61 #define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */
62 #define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */
63 #define MCE_PULSE_MASK 0x7f /* Pulse mask */
64 #define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */
65
66 #define MCE_HW_CMD_HEADER 0xff /* MCE hardware command header */
67 #define MCE_COMMAND_HEADER 0x9f /* MCE command header */
68 #define MCE_COMMAND_MASK 0xe0 /* Mask out command bits */
69 #define MCE_COMMAND_NULL 0x00 /* These show up various places... */
70 /* if buf[i] & MCE_COMMAND_MASK == 0x80 and buf[i] != MCE_COMMAND_HEADER,
71 * then we're looking at a raw IR data sample */
72 #define MCE_COMMAND_IRDATA 0x80
73 #define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
74
75 /* Sub-commands, which follow MCE_COMMAND_HEADER or MCE_HW_CMD_HEADER */
76 #define MCE_CMD_SIG_END 0x01 /* End of signal */
77 #define MCE_CMD_PING 0x03 /* Ping device */
78 #define MCE_CMD_UNKNOWN 0x04 /* Unknown */
79 #define MCE_CMD_UNKNOWN2 0x05 /* Unknown */
80 #define MCE_CMD_S_CARRIER 0x06 /* Set TX carrier frequency */
81 #define MCE_CMD_G_CARRIER 0x07 /* Get TX carrier frequency */
82 #define MCE_CMD_S_TXMASK 0x08 /* Set TX port bitmask */
83 #define MCE_CMD_UNKNOWN3 0x09 /* Unknown */
84 #define MCE_CMD_UNKNOWN4 0x0a /* Unknown */
85 #define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */
86 #define MCE_CMD_S_TIMEOUT 0x0c /* Set RX timeout value */
87 #define MCE_CMD_G_TIMEOUT 0x0d /* Get RX timeout value */
88 #define MCE_CMD_UNKNOWN5 0x0e /* Unknown */
89 #define MCE_CMD_UNKNOWN6 0x0f /* Unknown */
90 #define MCE_CMD_G_RXPORTSTS 0x11 /* Get RX port status */
91 #define MCE_CMD_G_TXMASK 0x13 /* Set TX port bitmask */
92 #define MCE_CMD_S_RXSENSOR 0x14 /* Set RX sensor (std/learning) */
93 #define MCE_CMD_G_RXSENSOR 0x15 /* Get RX sensor (std/learning) */
94 #define MCE_RSP_PULSE_COUNT 0x15 /* RX pulse count (only if learning) */
95 #define MCE_CMD_TX_PORTS 0x16 /* Get number of TX ports */
96 #define MCE_CMD_G_WAKESRC 0x17 /* Get wake source */
97 #define MCE_CMD_UNKNOWN7 0x18 /* Unknown */
98 #define MCE_CMD_UNKNOWN8 0x19 /* Unknown */
99 #define MCE_CMD_UNKNOWN9 0x1b /* Unknown */
100 #define MCE_CMD_DEVICE_RESET 0xaa /* Reset the hardware */
101 #define MCE_RSP_CMD_INVALID 0xfe /* Invalid command issued */
102
103
104 /* module parameters */
105 #ifdef CONFIG_USB_DEBUG
106 static int debug = 1;
107 #else
108 static int debug;
109 #endif
110
111 #define mce_dbg(dev, fmt, ...) \
112 do { \
113 if (debug) \
114 dev_info(dev, fmt, ## __VA_ARGS__); \
115 } while (0)
116
117 /* general constants */
118 #define SEND_FLAG_IN_PROGRESS 1
119 #define SEND_FLAG_COMPLETE 2
120 #define RECV_FLAG_IN_PROGRESS 3
121 #define RECV_FLAG_COMPLETE 4
122
123 #define MCEUSB_RX 1
124 #define MCEUSB_TX 2
125
126 #define VENDOR_PHILIPS 0x0471
127 #define VENDOR_SMK 0x0609
128 #define VENDOR_TATUNG 0x1460
129 #define VENDOR_GATEWAY 0x107b
130 #define VENDOR_SHUTTLE 0x1308
131 #define VENDOR_SHUTTLE2 0x051c
132 #define VENDOR_MITSUMI 0x03ee
133 #define VENDOR_TOPSEED 0x1784
134 #define VENDOR_RICAVISION 0x179d
135 #define VENDOR_ITRON 0x195d
136 #define VENDOR_FIC 0x1509
137 #define VENDOR_LG 0x043e
138 #define VENDOR_MICROSOFT 0x045e
139 #define VENDOR_FORMOSA 0x147a
140 #define VENDOR_FINTEK 0x1934
141 #define VENDOR_PINNACLE 0x2304
142 #define VENDOR_ECS 0x1019
143 #define VENDOR_WISTRON 0x0fb8
144 #define VENDOR_COMPRO 0x185b
145 #define VENDOR_NORTHSTAR 0x04eb
146 #define VENDOR_REALTEK 0x0bda
147 #define VENDOR_TIVO 0x105a
148 #define VENDOR_CONEXANT 0x0572
149
150 enum mceusb_model_type {
151 MCE_GEN2 = 0, /* Most boards */
152 MCE_GEN1,
153 MCE_GEN3,
154 MCE_GEN2_TX_INV,
155 POLARIS_EVK,
156 CX_HYBRID_TV,
157 MULTIFUNCTION,
158 TIVO_KIT,
159 MCE_GEN2_NO_TX,
160 };
161
162 struct mceusb_model {
163 u32 mce_gen1:1;
164 u32 mce_gen2:1;
165 u32 mce_gen3:1;
166 u32 tx_mask_normal:1;
167 u32 no_tx:1;
168
169 int ir_intfnum;
170
171 const char *rc_map; /* Allow specify a per-board map */
172 const char *name; /* per-board name */
173 };
174
175 static const struct mceusb_model mceusb_model[] = {
176 [MCE_GEN1] = {
177 .mce_gen1 = 1,
178 .tx_mask_normal = 1,
179 },
180 [MCE_GEN2] = {
181 .mce_gen2 = 1,
182 },
183 [MCE_GEN2_NO_TX] = {
184 .mce_gen2 = 1,
185 .no_tx = 1,
186 },
187 [MCE_GEN2_TX_INV] = {
188 .mce_gen2 = 1,
189 .tx_mask_normal = 1,
190 },
191 [MCE_GEN3] = {
192 .mce_gen3 = 1,
193 .tx_mask_normal = 1,
194 },
195 [POLARIS_EVK] = {
196 /*
197 * In fact, the EVK is shipped without
198 * remotes, but we should have something handy,
199 * to allow testing it
200 */
201 .rc_map = RC_MAP_HAUPPAUGE,
202 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
203 },
204 [CX_HYBRID_TV] = {
205 .no_tx = 1, /* tx isn't wired up at all */
206 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
207 },
208 [MULTIFUNCTION] = {
209 .mce_gen2 = 1,
210 .ir_intfnum = 2,
211 },
212 [TIVO_KIT] = {
213 .mce_gen2 = 1,
214 .rc_map = RC_MAP_TIVO,
215 },
216 };
217
218 static struct usb_device_id mceusb_dev_table[] = {
219 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
220 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
221 .driver_info = MCE_GEN1 },
222 /* Philips Infrared Transceiver - Sahara branded */
223 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
224 /* Philips Infrared Transceiver - HP branded */
225 { USB_DEVICE(VENDOR_PHILIPS, 0x060c),
226 .driver_info = MCE_GEN2_TX_INV },
227 /* Philips SRM5100 */
228 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
229 /* Philips Infrared Transceiver - Omaura */
230 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
231 /* Philips Infrared Transceiver - Spinel plus */
232 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
233 /* Philips eHome Infrared Transceiver */
234 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
235 /* Philips/Spinel plus IR transceiver for ASUS */
236 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
237 /* Philips/Spinel plus IR transceiver for ASUS */
238 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
239 /* Philips IR transceiver (Dell branded) */
240 { USB_DEVICE(VENDOR_PHILIPS, 0x2093) },
241 /* Realtek MCE IR Receiver and card reader */
242 { USB_DEVICE(VENDOR_REALTEK, 0x0161),
243 .driver_info = MULTIFUNCTION },
244 /* SMK/Toshiba G83C0004D410 */
245 { USB_DEVICE(VENDOR_SMK, 0x031d),
246 .driver_info = MCE_GEN2_TX_INV },
247 /* SMK eHome Infrared Transceiver (Sony VAIO) */
248 { USB_DEVICE(VENDOR_SMK, 0x0322),
249 .driver_info = MCE_GEN2_TX_INV },
250 /* bundled with Hauppauge PVR-150 */
251 { USB_DEVICE(VENDOR_SMK, 0x0334),
252 .driver_info = MCE_GEN2_TX_INV },
253 /* SMK eHome Infrared Transceiver */
254 { USB_DEVICE(VENDOR_SMK, 0x0338) },
255 /* SMK/I-O Data GV-MC7/RCKIT Receiver */
256 { USB_DEVICE(VENDOR_SMK, 0x0353),
257 .driver_info = MCE_GEN2_NO_TX },
258 /* Tatung eHome Infrared Transceiver */
259 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
260 /* Shuttle eHome Infrared Transceiver */
261 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
262 /* Shuttle eHome Infrared Transceiver */
263 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
264 /* Gateway eHome Infrared Transceiver */
265 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
266 /* Mitsumi */
267 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
268 /* Topseed eHome Infrared Transceiver */
269 { USB_DEVICE(VENDOR_TOPSEED, 0x0001),
270 .driver_info = MCE_GEN2_TX_INV },
271 /* Topseed HP eHome Infrared Transceiver */
272 { USB_DEVICE(VENDOR_TOPSEED, 0x0006),
273 .driver_info = MCE_GEN2_TX_INV },
274 /* Topseed eHome Infrared Transceiver */
275 { USB_DEVICE(VENDOR_TOPSEED, 0x0007),
276 .driver_info = MCE_GEN2_TX_INV },
277 /* Topseed eHome Infrared Transceiver */
278 { USB_DEVICE(VENDOR_TOPSEED, 0x0008),
279 .driver_info = MCE_GEN3 },
280 /* Topseed eHome Infrared Transceiver */
281 { USB_DEVICE(VENDOR_TOPSEED, 0x000a),
282 .driver_info = MCE_GEN2_TX_INV },
283 /* Topseed eHome Infrared Transceiver */
284 { USB_DEVICE(VENDOR_TOPSEED, 0x0011),
285 .driver_info = MCE_GEN3 },
286 /* Ricavision internal Infrared Transceiver */
287 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
288 /* Itron ione Libra Q-11 */
289 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
290 /* FIC eHome Infrared Transceiver */
291 { USB_DEVICE(VENDOR_FIC, 0x9242) },
292 /* LG eHome Infrared Transceiver */
293 { USB_DEVICE(VENDOR_LG, 0x9803) },
294 /* Microsoft MCE Infrared Transceiver */
295 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
296 /* Formosa eHome Infrared Transceiver */
297 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
298 /* Formosa21 / eHome Infrared Receiver */
299 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
300 /* Formosa aim / Trust MCE Infrared Receiver */
301 { USB_DEVICE(VENDOR_FORMOSA, 0xe017),
302 .driver_info = MCE_GEN2_NO_TX },
303 /* Formosa Industrial Computing / Beanbag Emulation Device */
304 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
305 /* Formosa21 / eHome Infrared Receiver */
306 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
307 /* Formosa Industrial Computing AIM IR605/A */
308 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
309 /* Formosa Industrial Computing */
310 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
311 /* Fintek eHome Infrared Transceiver (HP branded) */
312 { USB_DEVICE(VENDOR_FINTEK, 0x5168) },
313 /* Fintek eHome Infrared Transceiver */
314 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
315 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
316 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
317 /* Pinnacle Remote Kit */
318 { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
319 .driver_info = MCE_GEN3 },
320 /* Elitegroup Computer Systems IR */
321 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
322 /* Wistron Corp. eHome Infrared Receiver */
323 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
324 /* Compro K100 */
325 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
326 /* Compro K100 v2 */
327 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
328 /* Northstar Systems, Inc. eHome Infrared Transceiver */
329 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
330 /* TiVo PC IR Receiver */
331 { USB_DEVICE(VENDOR_TIVO, 0x2000),
332 .driver_info = TIVO_KIT },
333 /* Conexant Hybrid TV "Shelby" Polaris SDK */
334 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
335 .driver_info = POLARIS_EVK },
336 /* Conexant Hybrid TV RDU253S Polaris */
337 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
338 .driver_info = CX_HYBRID_TV },
339 /* Terminating entry */
340 { }
341 };
342
343 /* data structure for each usb transceiver */
344 struct mceusb_dev {
345 /* ir-core bits */
346 struct rc_dev *rc;
347
348 /* optional features we can enable */
349 bool carrier_report_enabled;
350 bool learning_enabled;
351
352 /* core device bits */
353 struct device *dev;
354
355 /* usb */
356 struct usb_device *usbdev;
357 struct urb *urb_in;
358 struct usb_endpoint_descriptor *usb_ep_in;
359 struct usb_endpoint_descriptor *usb_ep_out;
360
361 /* buffers and dma */
362 unsigned char *buf_in;
363 unsigned int len_in;
364 dma_addr_t dma_in;
365 dma_addr_t dma_out;
366
367 enum {
368 CMD_HEADER = 0,
369 SUBCMD,
370 CMD_DATA,
371 PARSE_IRDATA,
372 } parser_state;
373
374 u8 cmd, rem; /* Remaining IR data bytes in packet */
375
376 struct {
377 u32 connected:1;
378 u32 tx_mask_normal:1;
379 u32 microsoft_gen1:1;
380 u32 no_tx:1;
381 } flags;
382
383 /* transmit support */
384 int send_flags;
385 u32 carrier;
386 unsigned char tx_mask;
387
388 char name[128];
389 char phys[64];
390 enum mceusb_model_type model;
391 };
392
393 /*
394 * MCE Device Command Strings
395 * Device command responses vary from device to device...
396 * - DEVICE_RESET resets the hardware to its default state
397 * - GET_REVISION fetches the hardware/software revision, common
398 * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
399 * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
400 * device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
401 * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
402 * ((clk / frequency) - 1)
403 * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
404 * response in the form of 9f 0c msb lsb
405 * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
406 * the form of 9f 08 bm, where bm is the bitmask
407 * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
408 * general use one or short-range learning one, in the form of
409 * 9f 14 ss, where ss is either 01 for long-range or 02 for short
410 * - SET_CARRIER_FREQ sets a new carrier mode and frequency
411 * - SET_TX_BITMASK sets the transmitter bitmask
412 * - SET_RX_TIMEOUT sets the receiver timeout
413 * - SET_RX_SENSOR sets which receiver sensor to use
414 */
415 static char DEVICE_RESET[] = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER,
416 MCE_CMD_DEVICE_RESET};
417 static char GET_REVISION[] = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION};
418 static char GET_UNKNOWN[] = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7};
419 static char GET_UNKNOWN2[] = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2};
420 static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER};
421 static char GET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT};
422 static char GET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK};
423 static char GET_RX_SENSOR[] = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR};
424 /* sub in desired values in lower byte or bytes for full command */
425 /* FIXME: make use of these for transmit.
426 static char SET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER,
427 MCE_CMD_S_CARRIER, 0x00, 0x00};
428 static char SET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00};
429 static char SET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER,
430 MCE_CMD_S_TIMEOUT, 0x00, 0x00};
431 static char SET_RX_SENSOR[] = {MCE_COMMAND_HEADER,
432 MCE_CMD_S_RXSENSOR, 0x00};
433 */
434
435 static int mceusb_cmdsize(u8 cmd, u8 subcmd)
436 {
437 int datasize = 0;
438
439 switch (cmd) {
440 case MCE_COMMAND_NULL:
441 if (subcmd == MCE_HW_CMD_HEADER)
442 datasize = 1;
443 break;
444 case MCE_HW_CMD_HEADER:
445 switch (subcmd) {
446 case MCE_CMD_G_REVISION:
447 datasize = 2;
448 break;
449 }
450 case MCE_COMMAND_HEADER:
451 switch (subcmd) {
452 case MCE_CMD_UNKNOWN:
453 case MCE_CMD_S_CARRIER:
454 case MCE_CMD_S_TIMEOUT:
455 case MCE_RSP_PULSE_COUNT:
456 datasize = 2;
457 break;
458 case MCE_CMD_SIG_END:
459 case MCE_CMD_S_TXMASK:
460 case MCE_CMD_S_RXSENSOR:
461 datasize = 1;
462 break;
463 }
464 }
465 return datasize;
466 }
467
468 static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
469 int offset, int len, bool out)
470 {
471 char codes[USB_BUFLEN * 3 + 1];
472 char inout[9];
473 u8 cmd, subcmd, data1, data2;
474 struct device *dev = ir->dev;
475 int i, start, skip = 0;
476
477 if (!debug)
478 return;
479
480 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
481 if (ir->flags.microsoft_gen1 && !out && !offset)
482 skip = 2;
483
484 if (len <= skip)
485 return;
486
487 for (i = 0; i < len && i < USB_BUFLEN; i++)
488 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff);
489
490 dev_info(dev, "%sx data: %s(length=%d)\n",
491 (out ? "t" : "r"), codes, len);
492
493 if (out)
494 strcpy(inout, "Request\0");
495 else
496 strcpy(inout, "Got\0");
497
498 start = offset + skip;
499 cmd = buf[start] & 0xff;
500 subcmd = buf[start + 1] & 0xff;
501 data1 = buf[start + 2] & 0xff;
502 data2 = buf[start + 3] & 0xff;
503
504 switch (cmd) {
505 case MCE_COMMAND_NULL:
506 if ((subcmd == MCE_HW_CMD_HEADER) &&
507 (data1 == MCE_CMD_DEVICE_RESET))
508 dev_info(dev, "Device reset requested\n");
509 else
510 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
511 cmd, subcmd);
512 break;
513 case MCE_HW_CMD_HEADER:
514 switch (subcmd) {
515 case MCE_CMD_G_REVISION:
516 if (len == 2)
517 dev_info(dev, "Get hw/sw rev?\n");
518 else
519 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
520 "0x%02x 0x%02x\n", data1, data2,
521 buf[start + 4], buf[start + 5]);
522 break;
523 case MCE_CMD_DEVICE_RESET:
524 dev_info(dev, "Device reset requested\n");
525 break;
526 case MCE_RSP_CMD_INVALID:
527 dev_info(dev, "Previous command not supported\n");
528 break;
529 case MCE_CMD_UNKNOWN7:
530 case MCE_CMD_UNKNOWN9:
531 default:
532 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
533 cmd, subcmd);
534 break;
535 }
536 break;
537 case MCE_COMMAND_HEADER:
538 switch (subcmd) {
539 case MCE_CMD_SIG_END:
540 dev_info(dev, "End of signal\n");
541 break;
542 case MCE_CMD_PING:
543 dev_info(dev, "Ping\n");
544 break;
545 case MCE_CMD_UNKNOWN:
546 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
547 data1, data2);
548 break;
549 case MCE_CMD_S_CARRIER:
550 dev_info(dev, "%s carrier mode and freq of "
551 "0x%02x 0x%02x\n", inout, data1, data2);
552 break;
553 case MCE_CMD_G_CARRIER:
554 dev_info(dev, "Get carrier mode and freq\n");
555 break;
556 case MCE_CMD_S_TXMASK:
557 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
558 inout, data1);
559 break;
560 case MCE_CMD_S_TIMEOUT:
561 /* value is in units of 50us, so x*50/1000 ms */
562 dev_info(dev, "%s receive timeout of %d ms\n",
563 inout,
564 ((data1 << 8) | data2) * MCE_TIME_UNIT / 1000);
565 break;
566 case MCE_CMD_G_TIMEOUT:
567 dev_info(dev, "Get receive timeout\n");
568 break;
569 case MCE_CMD_G_TXMASK:
570 dev_info(dev, "Get transmit blaster mask\n");
571 break;
572 case MCE_CMD_S_RXSENSOR:
573 dev_info(dev, "%s %s-range receive sensor in use\n",
574 inout, data1 == 0x02 ? "short" : "long");
575 break;
576 case MCE_CMD_G_RXSENSOR:
577 /* aka MCE_RSP_PULSE_COUNT */
578 if (out)
579 dev_info(dev, "Get receive sensor\n");
580 else if (ir->learning_enabled)
581 dev_info(dev, "RX pulse count: %d\n",
582 ((data1 << 8) | data2));
583 break;
584 case MCE_RSP_CMD_INVALID:
585 dev_info(dev, "Error! Hardware is likely wedged...\n");
586 break;
587 case MCE_CMD_UNKNOWN2:
588 case MCE_CMD_UNKNOWN3:
589 case MCE_CMD_UNKNOWN5:
590 default:
591 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
592 cmd, subcmd);
593 break;
594 }
595 break;
596 default:
597 break;
598 }
599
600 if (cmd == MCE_IRDATA_TRAILER)
601 dev_info(dev, "End of raw IR data\n");
602 else if ((cmd != MCE_COMMAND_HEADER) &&
603 ((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA))
604 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
605 }
606
607 static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
608 {
609 struct mceusb_dev *ir;
610 int len;
611
612 if (!urb)
613 return;
614
615 ir = urb->context;
616 if (ir) {
617 len = urb->actual_length;
618
619 mce_dbg(ir->dev, "callback called (status=%d len=%d)\n",
620 urb->status, len);
621
622 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
623 }
624
625 /* the transfer buffer and urb were allocated in mce_request_packet */
626 kfree(urb->transfer_buffer);
627 usb_free_urb(urb);
628 }
629
630 /* request incoming or send outgoing usb packet - used to initialize remote */
631 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data,
632 int size, int urb_type)
633 {
634 int res, pipe;
635 struct urb *async_urb;
636 struct device *dev = ir->dev;
637 unsigned char *async_buf;
638
639 if (urb_type == MCEUSB_TX) {
640 async_urb = usb_alloc_urb(0, GFP_KERNEL);
641 if (unlikely(!async_urb)) {
642 dev_err(dev, "Error, couldn't allocate urb!\n");
643 return;
644 }
645
646 async_buf = kzalloc(size, GFP_KERNEL);
647 if (!async_buf) {
648 dev_err(dev, "Error, couldn't allocate buf!\n");
649 usb_free_urb(async_urb);
650 return;
651 }
652
653 /* outbound data */
654 pipe = usb_sndintpipe(ir->usbdev,
655 ir->usb_ep_out->bEndpointAddress);
656 usb_fill_int_urb(async_urb, ir->usbdev, pipe,
657 async_buf, size, (usb_complete_t)mce_async_callback,
658 ir, ir->usb_ep_out->bInterval);
659 memcpy(async_buf, data, size);
660
661 } else if (urb_type == MCEUSB_RX) {
662 /* standard request */
663 async_urb = ir->urb_in;
664 ir->send_flags = RECV_FLAG_IN_PROGRESS;
665
666 } else {
667 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
668 return;
669 }
670
671 mce_dbg(dev, "receive request called (size=%#x)\n", size);
672
673 async_urb->transfer_buffer_length = size;
674 async_urb->dev = ir->usbdev;
675
676 res = usb_submit_urb(async_urb, GFP_ATOMIC);
677 if (res) {
678 mce_dbg(dev, "receive request FAILED! (res=%d)\n", res);
679 return;
680 }
681 mce_dbg(dev, "receive request complete (res=%d)\n", res);
682 }
683
684 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
685 {
686 mce_request_packet(ir, data, size, MCEUSB_TX);
687 }
688
689 static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size)
690 {
691 mce_request_packet(ir, NULL, size, MCEUSB_RX);
692 }
693
694 /* Send data out the IR blaster port(s) */
695 static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
696 {
697 struct mceusb_dev *ir = dev->priv;
698 int i, ret = 0;
699 int cmdcount = 0;
700 unsigned char *cmdbuf; /* MCE command buffer */
701 long signal_duration = 0; /* Singnal length in us */
702 struct timeval start_time, end_time;
703
704 do_gettimeofday(&start_time);
705
706 cmdbuf = kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE, GFP_KERNEL);
707 if (!cmdbuf)
708 return -ENOMEM;
709
710 /* MCE tx init header */
711 cmdbuf[cmdcount++] = MCE_COMMAND_HEADER;
712 cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK;
713 cmdbuf[cmdcount++] = ir->tx_mask;
714
715 /* Generate mce packet data */
716 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
717 signal_duration += txbuf[i];
718 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
719
720 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
721
722 /* Insert mce packet header every 4th entry */
723 if ((cmdcount < MCE_CMDBUF_SIZE) &&
724 (cmdcount - MCE_TX_HEADER_LENGTH) %
725 MCE_CODE_LENGTH == 0)
726 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
727
728 /* Insert mce packet data */
729 if (cmdcount < MCE_CMDBUF_SIZE)
730 cmdbuf[cmdcount++] =
731 (txbuf[i] < MCE_PULSE_BIT ?
732 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
733 (i & 1 ? 0x00 : MCE_PULSE_BIT);
734 else {
735 ret = -EINVAL;
736 goto out;
737 }
738
739 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
740 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
741 }
742
743 /* Fix packet length in last header */
744 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
745 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) %
746 MCE_CODE_LENGTH - 1;
747
748 /* Check if we have room for the empty packet at the end */
749 if (cmdcount >= MCE_CMDBUF_SIZE) {
750 ret = -EINVAL;
751 goto out;
752 }
753
754 /* All mce commands end with an empty packet (0x80) */
755 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
756
757 /* Transmit the command to the mce device */
758 mce_async_out(ir, cmdbuf, cmdcount);
759
760 /*
761 * The lircd gap calculation expects the write function to
762 * wait the time it takes for the ircommand to be sent before
763 * it returns.
764 */
765 do_gettimeofday(&end_time);
766 signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
767 (end_time.tv_sec - start_time.tv_sec) * 1000000;
768
769 /* delay with the closest number of ticks */
770 set_current_state(TASK_INTERRUPTIBLE);
771 schedule_timeout(usecs_to_jiffies(signal_duration));
772
773 out:
774 kfree(cmdbuf);
775 return ret ? ret : count;
776 }
777
778 /* Sets active IR outputs -- mce devices typically have two */
779 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
780 {
781 struct mceusb_dev *ir = dev->priv;
782
783 if (ir->flags.tx_mask_normal)
784 ir->tx_mask = mask;
785 else
786 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
787 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
788
789 return 0;
790 }
791
792 /* Sets the send carrier frequency and mode */
793 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
794 {
795 struct mceusb_dev *ir = dev->priv;
796 int clk = 10000000;
797 int prescaler = 0, divisor = 0;
798 unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER,
799 MCE_CMD_S_CARRIER, 0x00, 0x00 };
800
801 /* Carrier has changed */
802 if (ir->carrier != carrier) {
803
804 if (carrier == 0) {
805 ir->carrier = carrier;
806 cmdbuf[2] = MCE_CMD_SIG_END;
807 cmdbuf[3] = MCE_IRDATA_TRAILER;
808 mce_dbg(ir->dev, "%s: disabling carrier "
809 "modulation\n", __func__);
810 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
811 return carrier;
812 }
813
814 for (prescaler = 0; prescaler < 4; ++prescaler) {
815 divisor = (clk >> (2 * prescaler)) / carrier;
816 if (divisor <= 0xff) {
817 ir->carrier = carrier;
818 cmdbuf[2] = prescaler;
819 cmdbuf[3] = divisor;
820 mce_dbg(ir->dev, "%s: requesting %u HZ "
821 "carrier\n", __func__, carrier);
822
823 /* Transmit new carrier to mce device */
824 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
825 return carrier;
826 }
827 }
828
829 return -EINVAL;
830
831 }
832
833 return carrier;
834 }
835
836 /*
837 * We don't do anything but print debug spew for many of the command bits
838 * we receive from the hardware, but some of them are useful information
839 * we want to store so that we can use them.
840 */
841 static void mceusb_handle_command(struct mceusb_dev *ir, int index)
842 {
843 u8 hi = ir->buf_in[index + 1] & 0xff;
844 u8 lo = ir->buf_in[index + 2] & 0xff;
845
846 switch (ir->buf_in[index]) {
847 /* 2-byte return value commands */
848 case MCE_CMD_S_TIMEOUT:
849 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);
850 break;
851
852 /* 1-byte return value commands */
853 case MCE_CMD_S_TXMASK:
854 ir->tx_mask = hi;
855 break;
856 case MCE_CMD_S_RXSENSOR:
857 ir->learning_enabled = (hi == 0x02);
858 break;
859 default:
860 break;
861 }
862 }
863
864 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
865 {
866 DEFINE_IR_RAW_EVENT(rawir);
867 int i = 0;
868
869 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
870 if (ir->flags.microsoft_gen1)
871 i = 2;
872
873 /* if there's no data, just return now */
874 if (buf_len <= i)
875 return;
876
877 for (; i < buf_len; i++) {
878 switch (ir->parser_state) {
879 case SUBCMD:
880 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
881 mceusb_dev_printdata(ir, ir->buf_in, i - 1,
882 ir->rem + 2, false);
883 mceusb_handle_command(ir, i);
884 ir->parser_state = CMD_DATA;
885 break;
886 case PARSE_IRDATA:
887 ir->rem--;
888 init_ir_raw_event(&rawir);
889 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
890 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
891 * US_TO_NS(MCE_TIME_UNIT);
892
893 mce_dbg(ir->dev, "Storing %s with duration %d\n",
894 rawir.pulse ? "pulse" : "space",
895 rawir.duration);
896
897 ir_raw_event_store_with_filter(ir->rc, &rawir);
898 break;
899 case CMD_DATA:
900 ir->rem--;
901 break;
902 case CMD_HEADER:
903 /* decode mce packets of the form (84),AA,BB,CC,DD */
904 /* IR data packets can span USB messages - rem */
905 ir->cmd = ir->buf_in[i];
906 if ((ir->cmd == MCE_COMMAND_HEADER) ||
907 ((ir->cmd & MCE_COMMAND_MASK) !=
908 MCE_COMMAND_IRDATA)) {
909 ir->parser_state = SUBCMD;
910 continue;
911 }
912 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
913 mceusb_dev_printdata(ir, ir->buf_in,
914 i, ir->rem + 1, false);
915 if (ir->rem)
916 ir->parser_state = PARSE_IRDATA;
917 else
918 ir_raw_event_reset(ir->rc);
919 break;
920 }
921
922 if (ir->parser_state != CMD_HEADER && !ir->rem)
923 ir->parser_state = CMD_HEADER;
924 }
925 mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
926 ir_raw_event_handle(ir->rc);
927 }
928
929 static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
930 {
931 struct mceusb_dev *ir;
932 int buf_len;
933
934 if (!urb)
935 return;
936
937 ir = urb->context;
938 if (!ir) {
939 usb_unlink_urb(urb);
940 return;
941 }
942
943 buf_len = urb->actual_length;
944
945 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
946 ir->send_flags = SEND_FLAG_COMPLETE;
947 mce_dbg(ir->dev, "setup answer received %d bytes\n",
948 buf_len);
949 }
950
951 switch (urb->status) {
952 /* success */
953 case 0:
954 mceusb_process_ir_data(ir, buf_len);
955 break;
956
957 case -ECONNRESET:
958 case -ENOENT:
959 case -ESHUTDOWN:
960 usb_unlink_urb(urb);
961 return;
962
963 case -EPIPE:
964 default:
965 mce_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
966 break;
967 }
968
969 usb_submit_urb(urb, GFP_ATOMIC);
970 }
971
972 static void mceusb_gen1_init(struct mceusb_dev *ir)
973 {
974 int ret;
975 struct device *dev = ir->dev;
976 char *data;
977
978 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
979 if (!data) {
980 dev_err(dev, "%s: memory allocation failed!\n", __func__);
981 return;
982 }
983
984 /*
985 * This is a strange one. Windows issues a set address to the device
986 * on the receive control pipe and expect a certain value pair back
987 */
988 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
989 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
990 data, USB_CTRL_MSG_SZ, HZ * 3);
991 mce_dbg(dev, "%s - ret = %d\n", __func__, ret);
992 mce_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
993 __func__, data[0], data[1]);
994
995 /* set feature: bit rate 38400 bps */
996 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
997 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
998 0xc04e, 0x0000, NULL, 0, HZ * 3);
999
1000 mce_dbg(dev, "%s - ret = %d\n", __func__, ret);
1001
1002 /* bRequest 4: set char length to 8 bits */
1003 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1004 4, USB_TYPE_VENDOR,
1005 0x0808, 0x0000, NULL, 0, HZ * 3);
1006 mce_dbg(dev, "%s - retB = %d\n", __func__, ret);
1007
1008 /* bRequest 2: set handshaking to use DTR/DSR */
1009 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1010 2, USB_TYPE_VENDOR,
1011 0x0000, 0x0100, NULL, 0, HZ * 3);
1012 mce_dbg(dev, "%s - retC = %d\n", __func__, ret);
1013
1014 /* device reset */
1015 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
1016
1017 /* get hw/sw revision? */
1018 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1019
1020 kfree(data);
1021 };
1022
1023 static void mceusb_gen2_init(struct mceusb_dev *ir)
1024 {
1025 /* device reset */
1026 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
1027
1028 /* get hw/sw revision? */
1029 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1030
1031 /* unknown what the next two actually return... */
1032 mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
1033 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
1034 }
1035
1036 static void mceusb_get_parameters(struct mceusb_dev *ir)
1037 {
1038 /* get the carrier and frequency */
1039 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
1040
1041 if (!ir->flags.no_tx)
1042 /* get the transmitter bitmask */
1043 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
1044
1045 /* get receiver timeout value */
1046 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
1047
1048 /* get receiver sensor setting */
1049 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
1050 }
1051
1052 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
1053 {
1054 struct device *dev = ir->dev;
1055 struct rc_dev *rc;
1056 int ret;
1057
1058 rc = rc_allocate_device();
1059 if (!rc) {
1060 dev_err(dev, "remote dev allocation failed\n");
1061 goto out;
1062 }
1063
1064 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
1065 mceusb_model[ir->model].name ?
1066 mceusb_model[ir->model].name :
1067 "Media Center Ed. eHome Infrared Remote Transceiver",
1068 le16_to_cpu(ir->usbdev->descriptor.idVendor),
1069 le16_to_cpu(ir->usbdev->descriptor.idProduct));
1070
1071 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
1072
1073 rc->input_name = ir->name;
1074 rc->input_phys = ir->phys;
1075 usb_to_input_id(ir->usbdev, &rc->input_id);
1076 rc->dev.parent = dev;
1077 rc->priv = ir;
1078 rc->driver_type = RC_DRIVER_IR_RAW;
1079 rc->allowed_protos = RC_TYPE_ALL;
1080 rc->timeout = MS_TO_NS(100);
1081 if (!ir->flags.no_tx) {
1082 rc->s_tx_mask = mceusb_set_tx_mask;
1083 rc->s_tx_carrier = mceusb_set_tx_carrier;
1084 rc->tx_ir = mceusb_tx_ir;
1085 }
1086 rc->driver_name = DRIVER_NAME;
1087 rc->map_name = mceusb_model[ir->model].rc_map ?
1088 mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE;
1089
1090 ret = rc_register_device(rc);
1091 if (ret < 0) {
1092 dev_err(dev, "remote dev registration failed\n");
1093 goto out;
1094 }
1095
1096 return rc;
1097
1098 out:
1099 rc_free_device(rc);
1100 return NULL;
1101 }
1102
1103 static int __devinit mceusb_dev_probe(struct usb_interface *intf,
1104 const struct usb_device_id *id)
1105 {
1106 struct usb_device *dev = interface_to_usbdev(intf);
1107 struct usb_host_interface *idesc;
1108 struct usb_endpoint_descriptor *ep = NULL;
1109 struct usb_endpoint_descriptor *ep_in = NULL;
1110 struct usb_endpoint_descriptor *ep_out = NULL;
1111 struct mceusb_dev *ir = NULL;
1112 int pipe, maxp, i;
1113 char buf[63], name[128] = "";
1114 enum mceusb_model_type model = id->driver_info;
1115 bool is_gen3;
1116 bool is_microsoft_gen1;
1117 bool tx_mask_normal;
1118 int ir_intfnum;
1119
1120 mce_dbg(&intf->dev, "%s called\n", __func__);
1121
1122 idesc = intf->cur_altsetting;
1123
1124 is_gen3 = mceusb_model[model].mce_gen3;
1125 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1126 tx_mask_normal = mceusb_model[model].tx_mask_normal;
1127 ir_intfnum = mceusb_model[model].ir_intfnum;
1128
1129 /* There are multi-function devices with non-IR interfaces */
1130 if (idesc->desc.bInterfaceNumber != ir_intfnum)
1131 return -ENODEV;
1132
1133 /* step through the endpoints to find first bulk in and out endpoint */
1134 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1135 ep = &idesc->endpoint[i].desc;
1136
1137 if ((ep_in == NULL)
1138 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1139 == USB_DIR_IN)
1140 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1141 == USB_ENDPOINT_XFER_BULK)
1142 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1143 == USB_ENDPOINT_XFER_INT))) {
1144
1145 ep_in = ep;
1146 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
1147 ep_in->bInterval = 1;
1148 mce_dbg(&intf->dev, "acceptable inbound endpoint "
1149 "found\n");
1150 }
1151
1152 if ((ep_out == NULL)
1153 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1154 == USB_DIR_OUT)
1155 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1156 == USB_ENDPOINT_XFER_BULK)
1157 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1158 == USB_ENDPOINT_XFER_INT))) {
1159
1160 ep_out = ep;
1161 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
1162 ep_out->bInterval = 1;
1163 mce_dbg(&intf->dev, "acceptable outbound endpoint "
1164 "found\n");
1165 }
1166 }
1167 if (ep_in == NULL) {
1168 mce_dbg(&intf->dev, "inbound and/or endpoint not found\n");
1169 return -ENODEV;
1170 }
1171
1172 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1173 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1174
1175 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1176 if (!ir)
1177 goto mem_alloc_fail;
1178
1179 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1180 if (!ir->buf_in)
1181 goto buf_in_alloc_fail;
1182
1183 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1184 if (!ir->urb_in)
1185 goto urb_in_alloc_fail;
1186
1187 ir->usbdev = dev;
1188 ir->dev = &intf->dev;
1189 ir->len_in = maxp;
1190 ir->flags.microsoft_gen1 = is_microsoft_gen1;
1191 ir->flags.tx_mask_normal = tx_mask_normal;
1192 ir->flags.no_tx = mceusb_model[model].no_tx;
1193 ir->model = model;
1194
1195 /* Saving usb interface data for use by the transmitter routine */
1196 ir->usb_ep_in = ep_in;
1197 ir->usb_ep_out = ep_out;
1198
1199 if (dev->descriptor.iManufacturer
1200 && usb_string(dev, dev->descriptor.iManufacturer,
1201 buf, sizeof(buf)) > 0)
1202 strlcpy(name, buf, sizeof(name));
1203 if (dev->descriptor.iProduct
1204 && usb_string(dev, dev->descriptor.iProduct,
1205 buf, sizeof(buf)) > 0)
1206 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1207 " %s", buf);
1208
1209 ir->rc = mceusb_init_rc_dev(ir);
1210 if (!ir->rc)
1211 goto rc_dev_fail;
1212
1213 /* wire up inbound data handler */
1214 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
1215 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
1216 ir->urb_in->transfer_dma = ir->dma_in;
1217 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1218
1219 /* flush buffers on the device */
1220 mce_dbg(&intf->dev, "Flushing receive buffers\n");
1221 mce_flush_rx_buffer(ir, maxp);
1222
1223 /* initialize device */
1224 if (ir->flags.microsoft_gen1)
1225 mceusb_gen1_init(ir);
1226 else if (!is_gen3)
1227 mceusb_gen2_init(ir);
1228
1229 mceusb_get_parameters(ir);
1230
1231 if (!ir->flags.no_tx)
1232 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
1233
1234 usb_set_intfdata(intf, ir);
1235
1236 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
1237 dev->bus->busnum, dev->devnum);
1238
1239 return 0;
1240
1241 /* Error-handling path */
1242 rc_dev_fail:
1243 usb_free_urb(ir->urb_in);
1244 urb_in_alloc_fail:
1245 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1246 buf_in_alloc_fail:
1247 kfree(ir);
1248 mem_alloc_fail:
1249 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1250
1251 return -ENOMEM;
1252 }
1253
1254
1255 static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1256 {
1257 struct usb_device *dev = interface_to_usbdev(intf);
1258 struct mceusb_dev *ir = usb_get_intfdata(intf);
1259
1260 usb_set_intfdata(intf, NULL);
1261
1262 if (!ir)
1263 return;
1264
1265 ir->usbdev = NULL;
1266 rc_unregister_device(ir->rc);
1267 usb_kill_urb(ir->urb_in);
1268 usb_free_urb(ir->urb_in);
1269 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1270
1271 kfree(ir);
1272 }
1273
1274 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1275 {
1276 struct mceusb_dev *ir = usb_get_intfdata(intf);
1277 dev_info(ir->dev, "suspend\n");
1278 usb_kill_urb(ir->urb_in);
1279 return 0;
1280 }
1281
1282 static int mceusb_dev_resume(struct usb_interface *intf)
1283 {
1284 struct mceusb_dev *ir = usb_get_intfdata(intf);
1285 dev_info(ir->dev, "resume\n");
1286 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1287 return -EIO;
1288 return 0;
1289 }
1290
1291 static struct usb_driver mceusb_dev_driver = {
1292 .name = DRIVER_NAME,
1293 .probe = mceusb_dev_probe,
1294 .disconnect = mceusb_dev_disconnect,
1295 .suspend = mceusb_dev_suspend,
1296 .resume = mceusb_dev_resume,
1297 .reset_resume = mceusb_dev_resume,
1298 .id_table = mceusb_dev_table
1299 };
1300
1301 static int __init mceusb_dev_init(void)
1302 {
1303 int ret;
1304
1305 ret = usb_register(&mceusb_dev_driver);
1306 if (ret < 0)
1307 printk(KERN_ERR DRIVER_NAME
1308 ": usb register failed, result = %d\n", ret);
1309
1310 return ret;
1311 }
1312
1313 static void __exit mceusb_dev_exit(void)
1314 {
1315 usb_deregister(&mceusb_dev_driver);
1316 }
1317
1318 module_init(mceusb_dev_init);
1319 module_exit(mceusb_dev_exit);
1320
1321 MODULE_DESCRIPTION(DRIVER_DESC);
1322 MODULE_AUTHOR(DRIVER_AUTHOR);
1323 MODULE_LICENSE("GPL");
1324 MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1325
1326 module_param(debug, bool, S_IRUGO | S_IWUSR);
1327 MODULE_PARM_DESC(debug, "Debug enabled or not");
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