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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / rc / mceusb.c
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 /* general constants */
112 #define SEND_FLAG_IN_PROGRESS 1
113 #define SEND_FLAG_COMPLETE 2
114 #define RECV_FLAG_IN_PROGRESS 3
115 #define RECV_FLAG_COMPLETE 4
116
117 #define MCEUSB_RX 1
118 #define MCEUSB_TX 2
119
120 #define VENDOR_PHILIPS 0x0471
121 #define VENDOR_SMK 0x0609
122 #define VENDOR_TATUNG 0x1460
123 #define VENDOR_GATEWAY 0x107b
124 #define VENDOR_SHUTTLE 0x1308
125 #define VENDOR_SHUTTLE2 0x051c
126 #define VENDOR_MITSUMI 0x03ee
127 #define VENDOR_TOPSEED 0x1784
128 #define VENDOR_RICAVISION 0x179d
129 #define VENDOR_ITRON 0x195d
130 #define VENDOR_FIC 0x1509
131 #define VENDOR_LG 0x043e
132 #define VENDOR_MICROSOFT 0x045e
133 #define VENDOR_FORMOSA 0x147a
134 #define VENDOR_FINTEK 0x1934
135 #define VENDOR_PINNACLE 0x2304
136 #define VENDOR_ECS 0x1019
137 #define VENDOR_WISTRON 0x0fb8
138 #define VENDOR_COMPRO 0x185b
139 #define VENDOR_NORTHSTAR 0x04eb
140 #define VENDOR_REALTEK 0x0bda
141 #define VENDOR_TIVO 0x105a
142 #define VENDOR_CONEXANT 0x0572
143
144 enum mceusb_model_type {
145 MCE_GEN2 = 0, /* Most boards */
146 MCE_GEN1,
147 MCE_GEN3,
148 MCE_GEN2_TX_INV,
149 POLARIS_EVK,
150 CX_HYBRID_TV,
151 MULTIFUNCTION,
152 };
153
154 struct mceusb_model {
155 u32 mce_gen1:1;
156 u32 mce_gen2:1;
157 u32 mce_gen3:1;
158 u32 tx_mask_normal:1;
159 u32 no_tx:1;
160
161 int ir_intfnum;
162
163 const char *rc_map; /* Allow specify a per-board map */
164 const char *name; /* per-board name */
165 };
166
167 static const struct mceusb_model mceusb_model[] = {
168 [MCE_GEN1] = {
169 .mce_gen1 = 1,
170 .tx_mask_normal = 1,
171 },
172 [MCE_GEN2] = {
173 .mce_gen2 = 1,
174 },
175 [MCE_GEN2_TX_INV] = {
176 .mce_gen2 = 1,
177 .tx_mask_normal = 1,
178 },
179 [MCE_GEN3] = {
180 .mce_gen3 = 1,
181 .tx_mask_normal = 1,
182 },
183 [POLARIS_EVK] = {
184 /*
185 * In fact, the EVK is shipped without
186 * remotes, but we should have something handy,
187 * to allow testing it
188 */
189 .rc_map = RC_MAP_HAUPPAUGE,
190 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
191 },
192 [CX_HYBRID_TV] = {
193 .no_tx = 1, /* tx isn't wired up at all */
194 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
195 },
196 [MULTIFUNCTION] = {
197 .mce_gen2 = 1,
198 .ir_intfnum = 2,
199 },
200 };
201
202 static struct usb_device_id mceusb_dev_table[] = {
203 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
204 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
205 .driver_info = MCE_GEN1 },
206 /* Philips Infrared Transceiver - Sahara branded */
207 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
208 /* Philips Infrared Transceiver - HP branded */
209 { USB_DEVICE(VENDOR_PHILIPS, 0x060c),
210 .driver_info = MCE_GEN2_TX_INV },
211 /* Philips SRM5100 */
212 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
213 /* Philips Infrared Transceiver - Omaura */
214 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
215 /* Philips Infrared Transceiver - Spinel plus */
216 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
217 /* Philips eHome Infrared Transceiver */
218 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
219 /* Philips/Spinel plus IR transceiver for ASUS */
220 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
221 /* Philips/Spinel plus IR transceiver for ASUS */
222 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
223 /* Philips IR transceiver (Dell branded) */
224 { USB_DEVICE(VENDOR_PHILIPS, 0x2093) },
225 /* Realtek MCE IR Receiver and card reader */
226 { USB_DEVICE(VENDOR_REALTEK, 0x0161),
227 .driver_info = MULTIFUNCTION },
228 /* SMK/Toshiba G83C0004D410 */
229 { USB_DEVICE(VENDOR_SMK, 0x031d),
230 .driver_info = MCE_GEN2_TX_INV },
231 /* SMK eHome Infrared Transceiver (Sony VAIO) */
232 { USB_DEVICE(VENDOR_SMK, 0x0322),
233 .driver_info = MCE_GEN2_TX_INV },
234 /* bundled with Hauppauge PVR-150 */
235 { USB_DEVICE(VENDOR_SMK, 0x0334),
236 .driver_info = MCE_GEN2_TX_INV },
237 /* SMK eHome Infrared Transceiver */
238 { USB_DEVICE(VENDOR_SMK, 0x0338) },
239 /* Tatung eHome Infrared Transceiver */
240 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
241 /* Shuttle eHome Infrared Transceiver */
242 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
243 /* Shuttle eHome Infrared Transceiver */
244 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
245 /* Gateway eHome Infrared Transceiver */
246 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
247 /* Mitsumi */
248 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
249 /* Topseed eHome Infrared Transceiver */
250 { USB_DEVICE(VENDOR_TOPSEED, 0x0001),
251 .driver_info = MCE_GEN2_TX_INV },
252 /* Topseed HP eHome Infrared Transceiver */
253 { USB_DEVICE(VENDOR_TOPSEED, 0x0006),
254 .driver_info = MCE_GEN2_TX_INV },
255 /* Topseed eHome Infrared Transceiver */
256 { USB_DEVICE(VENDOR_TOPSEED, 0x0007),
257 .driver_info = MCE_GEN2_TX_INV },
258 /* Topseed eHome Infrared Transceiver */
259 { USB_DEVICE(VENDOR_TOPSEED, 0x0008),
260 .driver_info = MCE_GEN3 },
261 /* Topseed eHome Infrared Transceiver */
262 { USB_DEVICE(VENDOR_TOPSEED, 0x000a),
263 .driver_info = MCE_GEN2_TX_INV },
264 /* Topseed eHome Infrared Transceiver */
265 { USB_DEVICE(VENDOR_TOPSEED, 0x0011),
266 .driver_info = MCE_GEN3 },
267 /* Ricavision internal Infrared Transceiver */
268 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
269 /* Itron ione Libra Q-11 */
270 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
271 /* FIC eHome Infrared Transceiver */
272 { USB_DEVICE(VENDOR_FIC, 0x9242) },
273 /* LG eHome Infrared Transceiver */
274 { USB_DEVICE(VENDOR_LG, 0x9803) },
275 /* Microsoft MCE Infrared Transceiver */
276 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
277 /* Formosa eHome Infrared Transceiver */
278 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
279 /* Formosa21 / eHome Infrared Receiver */
280 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
281 /* Formosa aim / Trust MCE Infrared Receiver */
282 { USB_DEVICE(VENDOR_FORMOSA, 0xe017) },
283 /* Formosa Industrial Computing / Beanbag Emulation Device */
284 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
285 /* Formosa21 / eHome Infrared Receiver */
286 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
287 /* Formosa Industrial Computing AIM IR605/A */
288 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
289 /* Formosa Industrial Computing */
290 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
291 /* Fintek eHome Infrared Transceiver (HP branded) */
292 { USB_DEVICE(VENDOR_FINTEK, 0x5168) },
293 /* Fintek eHome Infrared Transceiver */
294 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
295 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
296 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
297 /* Pinnacle Remote Kit */
298 { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
299 .driver_info = MCE_GEN3 },
300 /* Elitegroup Computer Systems IR */
301 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
302 /* Wistron Corp. eHome Infrared Receiver */
303 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
304 /* Compro K100 */
305 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
306 /* Compro K100 v2 */
307 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
308 /* Northstar Systems, Inc. eHome Infrared Transceiver */
309 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
310 /* TiVo PC IR Receiver */
311 { USB_DEVICE(VENDOR_TIVO, 0x2000) },
312 /* Conexant Hybrid TV "Shelby" Polaris SDK */
313 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
314 .driver_info = POLARIS_EVK },
315 /* Conexant Hybrid TV RDU253S Polaris */
316 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
317 .driver_info = CX_HYBRID_TV },
318 /* Terminating entry */
319 { }
320 };
321
322 /* data structure for each usb transceiver */
323 struct mceusb_dev {
324 /* ir-core bits */
325 struct rc_dev *rc;
326
327 /* optional features we can enable */
328 bool carrier_report_enabled;
329 bool learning_enabled;
330
331 /* core device bits */
332 struct device *dev;
333
334 /* usb */
335 struct usb_device *usbdev;
336 struct urb *urb_in;
337 struct usb_endpoint_descriptor *usb_ep_in;
338 struct usb_endpoint_descriptor *usb_ep_out;
339
340 /* buffers and dma */
341 unsigned char *buf_in;
342 unsigned int len_in;
343 dma_addr_t dma_in;
344 dma_addr_t dma_out;
345
346 enum {
347 CMD_HEADER = 0,
348 SUBCMD,
349 CMD_DATA,
350 PARSE_IRDATA,
351 } parser_state;
352
353 u8 cmd, rem; /* Remaining IR data bytes in packet */
354
355 struct {
356 u32 connected:1;
357 u32 tx_mask_normal:1;
358 u32 microsoft_gen1:1;
359 u32 no_tx:1;
360 } flags;
361
362 /* transmit support */
363 int send_flags;
364 u32 carrier;
365 unsigned char tx_mask;
366
367 char name[128];
368 char phys[64];
369 enum mceusb_model_type model;
370 };
371
372 /*
373 * MCE Device Command Strings
374 * Device command responses vary from device to device...
375 * - DEVICE_RESET resets the hardware to its default state
376 * - GET_REVISION fetches the hardware/software revision, common
377 * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
378 * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
379 * device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
380 * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
381 * ((clk / frequency) - 1)
382 * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
383 * response in the form of 9f 0c msb lsb
384 * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
385 * the form of 9f 08 bm, where bm is the bitmask
386 * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
387 * general use one or short-range learning one, in the form of
388 * 9f 14 ss, where ss is either 01 for long-range or 02 for short
389 * - SET_CARRIER_FREQ sets a new carrier mode and frequency
390 * - SET_TX_BITMASK sets the transmitter bitmask
391 * - SET_RX_TIMEOUT sets the receiver timeout
392 * - SET_RX_SENSOR sets which receiver sensor to use
393 */
394 static char DEVICE_RESET[] = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER,
395 MCE_CMD_DEVICE_RESET};
396 static char GET_REVISION[] = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION};
397 static char GET_UNKNOWN[] = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7};
398 static char GET_UNKNOWN2[] = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2};
399 static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER};
400 static char GET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT};
401 static char GET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK};
402 static char GET_RX_SENSOR[] = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR};
403 /* sub in desired values in lower byte or bytes for full command */
404 /* FIXME: make use of these for transmit.
405 static char SET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER,
406 MCE_CMD_S_CARRIER, 0x00, 0x00};
407 static char SET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00};
408 static char SET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER,
409 MCE_CMD_S_TIMEOUT, 0x00, 0x00};
410 static char SET_RX_SENSOR[] = {MCE_COMMAND_HEADER,
411 MCE_CMD_S_RXSENSOR, 0x00};
412 */
413
414 static int mceusb_cmdsize(u8 cmd, u8 subcmd)
415 {
416 int datasize = 0;
417
418 switch (cmd) {
419 case MCE_COMMAND_NULL:
420 if (subcmd == MCE_HW_CMD_HEADER)
421 datasize = 1;
422 break;
423 case MCE_HW_CMD_HEADER:
424 switch (subcmd) {
425 case MCE_CMD_G_REVISION:
426 datasize = 2;
427 break;
428 }
429 case MCE_COMMAND_HEADER:
430 switch (subcmd) {
431 case MCE_CMD_UNKNOWN:
432 case MCE_CMD_S_CARRIER:
433 case MCE_CMD_S_TIMEOUT:
434 case MCE_RSP_PULSE_COUNT:
435 datasize = 2;
436 break;
437 case MCE_CMD_SIG_END:
438 case MCE_CMD_S_TXMASK:
439 case MCE_CMD_S_RXSENSOR:
440 datasize = 1;
441 break;
442 }
443 }
444 return datasize;
445 }
446
447 static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
448 int offset, int len, bool out)
449 {
450 char codes[USB_BUFLEN * 3 + 1];
451 char inout[9];
452 u8 cmd, subcmd, data1, data2;
453 struct device *dev = ir->dev;
454 int i, start, skip = 0;
455
456 if (!debug)
457 return;
458
459 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
460 if (ir->flags.microsoft_gen1 && !out && !offset)
461 skip = 2;
462
463 if (len <= skip)
464 return;
465
466 for (i = 0; i < len && i < USB_BUFLEN; i++)
467 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff);
468
469 dev_info(dev, "%sx data: %s(length=%d)\n",
470 (out ? "t" : "r"), codes, len);
471
472 if (out)
473 strcpy(inout, "Request\0");
474 else
475 strcpy(inout, "Got\0");
476
477 start = offset + skip;
478 cmd = buf[start] & 0xff;
479 subcmd = buf[start + 1] & 0xff;
480 data1 = buf[start + 2] & 0xff;
481 data2 = buf[start + 3] & 0xff;
482
483 switch (cmd) {
484 case MCE_COMMAND_NULL:
485 if ((subcmd == MCE_HW_CMD_HEADER) &&
486 (data1 == MCE_CMD_DEVICE_RESET))
487 dev_info(dev, "Device reset requested\n");
488 else
489 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
490 cmd, subcmd);
491 break;
492 case MCE_HW_CMD_HEADER:
493 switch (subcmd) {
494 case MCE_CMD_G_REVISION:
495 if (len == 2)
496 dev_info(dev, "Get hw/sw rev?\n");
497 else
498 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
499 "0x%02x 0x%02x\n", data1, data2,
500 buf[start + 4], buf[start + 5]);
501 break;
502 case MCE_CMD_DEVICE_RESET:
503 dev_info(dev, "Device reset requested\n");
504 break;
505 case MCE_RSP_CMD_INVALID:
506 dev_info(dev, "Previous command not supported\n");
507 break;
508 case MCE_CMD_UNKNOWN7:
509 case MCE_CMD_UNKNOWN9:
510 default:
511 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
512 cmd, subcmd);
513 break;
514 }
515 break;
516 case MCE_COMMAND_HEADER:
517 switch (subcmd) {
518 case MCE_CMD_SIG_END:
519 dev_info(dev, "End of signal\n");
520 break;
521 case MCE_CMD_PING:
522 dev_info(dev, "Ping\n");
523 break;
524 case MCE_CMD_UNKNOWN:
525 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
526 data1, data2);
527 break;
528 case MCE_CMD_S_CARRIER:
529 dev_info(dev, "%s carrier mode and freq of "
530 "0x%02x 0x%02x\n", inout, data1, data2);
531 break;
532 case MCE_CMD_G_CARRIER:
533 dev_info(dev, "Get carrier mode and freq\n");
534 break;
535 case MCE_CMD_S_TXMASK:
536 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
537 inout, data1);
538 break;
539 case MCE_CMD_S_TIMEOUT:
540 /* value is in units of 50us, so x*50/100 or x/2 ms */
541 dev_info(dev, "%s receive timeout of %d ms\n",
542 inout, ((data1 << 8) | data2) / 2);
543 break;
544 case MCE_CMD_G_TIMEOUT:
545 dev_info(dev, "Get receive timeout\n");
546 break;
547 case MCE_CMD_G_TXMASK:
548 dev_info(dev, "Get transmit blaster mask\n");
549 break;
550 case MCE_CMD_S_RXSENSOR:
551 dev_info(dev, "%s %s-range receive sensor in use\n",
552 inout, data1 == 0x02 ? "short" : "long");
553 break;
554 case MCE_CMD_G_RXSENSOR:
555 /* aka MCE_RSP_PULSE_COUNT */
556 if (out)
557 dev_info(dev, "Get receive sensor\n");
558 else if (ir->learning_enabled)
559 dev_info(dev, "RX pulse count: %d\n",
560 ((data1 << 8) | data2));
561 break;
562 case MCE_RSP_CMD_INVALID:
563 dev_info(dev, "Error! Hardware is likely wedged...\n");
564 break;
565 case MCE_CMD_UNKNOWN2:
566 case MCE_CMD_UNKNOWN3:
567 case MCE_CMD_UNKNOWN5:
568 default:
569 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
570 cmd, subcmd);
571 break;
572 }
573 break;
574 default:
575 break;
576 }
577
578 if (cmd == MCE_IRDATA_TRAILER)
579 dev_info(dev, "End of raw IR data\n");
580 else if ((cmd != MCE_COMMAND_HEADER) &&
581 ((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA))
582 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
583 }
584
585 static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
586 {
587 struct mceusb_dev *ir;
588 int len;
589
590 if (!urb)
591 return;
592
593 ir = urb->context;
594 if (ir) {
595 len = urb->actual_length;
596
597 dev_dbg(ir->dev, "callback called (status=%d len=%d)\n",
598 urb->status, len);
599
600 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
601 }
602
603 }
604
605 /* request incoming or send outgoing usb packet - used to initialize remote */
606 static void mce_request_packet(struct mceusb_dev *ir,
607 struct usb_endpoint_descriptor *ep,
608 unsigned char *data, int size, int urb_type)
609 {
610 int res;
611 struct urb *async_urb;
612 struct device *dev = ir->dev;
613 unsigned char *async_buf;
614
615 if (urb_type == MCEUSB_TX) {
616 async_urb = usb_alloc_urb(0, GFP_KERNEL);
617 if (unlikely(!async_urb)) {
618 dev_err(dev, "Error, couldn't allocate urb!\n");
619 return;
620 }
621
622 async_buf = kzalloc(size, GFP_KERNEL);
623 if (!async_buf) {
624 dev_err(dev, "Error, couldn't allocate buf!\n");
625 usb_free_urb(async_urb);
626 return;
627 }
628
629 /* outbound data */
630 usb_fill_int_urb(async_urb, ir->usbdev,
631 usb_sndintpipe(ir->usbdev, ep->bEndpointAddress),
632 async_buf, size, (usb_complete_t)mce_async_callback,
633 ir, ep->bInterval);
634 memcpy(async_buf, data, size);
635
636 } else if (urb_type == MCEUSB_RX) {
637 /* standard request */
638 async_urb = ir->urb_in;
639 ir->send_flags = RECV_FLAG_IN_PROGRESS;
640
641 } else {
642 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
643 return;
644 }
645
646 dev_dbg(dev, "receive request called (size=%#x)\n", size);
647
648 async_urb->transfer_buffer_length = size;
649 async_urb->dev = ir->usbdev;
650
651 res = usb_submit_urb(async_urb, GFP_ATOMIC);
652 if (res) {
653 dev_dbg(dev, "receive request FAILED! (res=%d)\n", res);
654 return;
655 }
656 dev_dbg(dev, "receive request complete (res=%d)\n", res);
657 }
658
659 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
660 {
661 mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX);
662 }
663
664 static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size)
665 {
666 mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX);
667 }
668
669 /* Send data out the IR blaster port(s) */
670 static int mceusb_tx_ir(struct rc_dev *dev, int *txbuf, u32 n)
671 {
672 struct mceusb_dev *ir = dev->priv;
673 int i, ret = 0;
674 int count, cmdcount = 0;
675 unsigned char *cmdbuf; /* MCE command buffer */
676 long signal_duration = 0; /* Singnal length in us */
677 struct timeval start_time, end_time;
678
679 do_gettimeofday(&start_time);
680
681 count = n / sizeof(int);
682
683 cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL);
684 if (!cmdbuf)
685 return -ENOMEM;
686
687 /* MCE tx init header */
688 cmdbuf[cmdcount++] = MCE_COMMAND_HEADER;
689 cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK;
690 cmdbuf[cmdcount++] = ir->tx_mask;
691
692 /* Generate mce packet data */
693 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
694 signal_duration += txbuf[i];
695 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
696
697 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
698
699 /* Insert mce packet header every 4th entry */
700 if ((cmdcount < MCE_CMDBUF_SIZE) &&
701 (cmdcount - MCE_TX_HEADER_LENGTH) %
702 MCE_CODE_LENGTH == 0)
703 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
704
705 /* Insert mce packet data */
706 if (cmdcount < MCE_CMDBUF_SIZE)
707 cmdbuf[cmdcount++] =
708 (txbuf[i] < MCE_PULSE_BIT ?
709 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
710 (i & 1 ? 0x00 : MCE_PULSE_BIT);
711 else {
712 ret = -EINVAL;
713 goto out;
714 }
715
716 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
717 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
718 }
719
720 /* Fix packet length in last header */
721 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
722 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) %
723 MCE_CODE_LENGTH - 1;
724
725 /* Check if we have room for the empty packet at the end */
726 if (cmdcount >= MCE_CMDBUF_SIZE) {
727 ret = -EINVAL;
728 goto out;
729 }
730
731 /* All mce commands end with an empty packet (0x80) */
732 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
733
734 /* Transmit the command to the mce device */
735 mce_async_out(ir, cmdbuf, cmdcount);
736
737 /*
738 * The lircd gap calculation expects the write function to
739 * wait the time it takes for the ircommand to be sent before
740 * it returns.
741 */
742 do_gettimeofday(&end_time);
743 signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
744 (end_time.tv_sec - start_time.tv_sec) * 1000000;
745
746 /* delay with the closest number of ticks */
747 set_current_state(TASK_INTERRUPTIBLE);
748 schedule_timeout(usecs_to_jiffies(signal_duration));
749
750 out:
751 kfree(cmdbuf);
752 return ret ? ret : n;
753 }
754
755 /* Sets active IR outputs -- mce devices typically have two */
756 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
757 {
758 struct mceusb_dev *ir = dev->priv;
759
760 if (ir->flags.tx_mask_normal)
761 ir->tx_mask = mask;
762 else
763 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
764 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
765
766 return 0;
767 }
768
769 /* Sets the send carrier frequency and mode */
770 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
771 {
772 struct mceusb_dev *ir = dev->priv;
773 int clk = 10000000;
774 int prescaler = 0, divisor = 0;
775 unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER,
776 MCE_CMD_S_CARRIER, 0x00, 0x00 };
777
778 /* Carrier has changed */
779 if (ir->carrier != carrier) {
780
781 if (carrier == 0) {
782 ir->carrier = carrier;
783 cmdbuf[2] = MCE_CMD_SIG_END;
784 cmdbuf[3] = MCE_IRDATA_TRAILER;
785 dev_dbg(ir->dev, "%s: disabling carrier "
786 "modulation\n", __func__);
787 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
788 return carrier;
789 }
790
791 for (prescaler = 0; prescaler < 4; ++prescaler) {
792 divisor = (clk >> (2 * prescaler)) / carrier;
793 if (divisor <= 0xff) {
794 ir->carrier = carrier;
795 cmdbuf[2] = prescaler;
796 cmdbuf[3] = divisor;
797 dev_dbg(ir->dev, "%s: requesting %u HZ "
798 "carrier\n", __func__, carrier);
799
800 /* Transmit new carrier to mce device */
801 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
802 return carrier;
803 }
804 }
805
806 return -EINVAL;
807
808 }
809
810 return carrier;
811 }
812
813 /*
814 * We don't do anything but print debug spew for many of the command bits
815 * we receive from the hardware, but some of them are useful information
816 * we want to store so that we can use them.
817 */
818 static void mceusb_handle_command(struct mceusb_dev *ir, int index)
819 {
820 u8 hi = ir->buf_in[index + 1] & 0xff;
821 u8 lo = ir->buf_in[index + 2] & 0xff;
822
823 switch (ir->buf_in[index]) {
824 /* 2-byte return value commands */
825 case MCE_CMD_S_TIMEOUT:
826 ir->rc->timeout = US_TO_NS((hi << 8 | lo) / 2);
827 break;
828
829 /* 1-byte return value commands */
830 case MCE_CMD_S_TXMASK:
831 ir->tx_mask = hi;
832 break;
833 case MCE_CMD_S_RXSENSOR:
834 ir->learning_enabled = (hi == 0x02);
835 break;
836 default:
837 break;
838 }
839 }
840
841 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
842 {
843 DEFINE_IR_RAW_EVENT(rawir);
844 int i = 0;
845
846 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
847 if (ir->flags.microsoft_gen1)
848 i = 2;
849
850 /* if there's no data, just return now */
851 if (buf_len <= i)
852 return;
853
854 for (; i < buf_len; i++) {
855 switch (ir->parser_state) {
856 case SUBCMD:
857 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
858 mceusb_dev_printdata(ir, ir->buf_in, i - 1,
859 ir->rem + 2, false);
860 mceusb_handle_command(ir, i);
861 ir->parser_state = CMD_DATA;
862 break;
863 case PARSE_IRDATA:
864 ir->rem--;
865 init_ir_raw_event(&rawir);
866 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
867 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
868 * US_TO_NS(MCE_TIME_UNIT);
869
870 dev_dbg(ir->dev, "Storing %s with duration %d\n",
871 rawir.pulse ? "pulse" : "space",
872 rawir.duration);
873
874 ir_raw_event_store_with_filter(ir->rc, &rawir);
875 break;
876 case CMD_DATA:
877 ir->rem--;
878 break;
879 case CMD_HEADER:
880 /* decode mce packets of the form (84),AA,BB,CC,DD */
881 /* IR data packets can span USB messages - rem */
882 ir->cmd = ir->buf_in[i];
883 if ((ir->cmd == MCE_COMMAND_HEADER) ||
884 ((ir->cmd & MCE_COMMAND_MASK) !=
885 MCE_COMMAND_IRDATA)) {
886 ir->parser_state = SUBCMD;
887 continue;
888 }
889 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
890 mceusb_dev_printdata(ir, ir->buf_in,
891 i, ir->rem + 1, false);
892 if (ir->rem)
893 ir->parser_state = PARSE_IRDATA;
894 else
895 ir_raw_event_reset(ir->rc);
896 break;
897 }
898
899 if (ir->parser_state != CMD_HEADER && !ir->rem)
900 ir->parser_state = CMD_HEADER;
901 }
902 dev_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
903 ir_raw_event_handle(ir->rc);
904 }
905
906 static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
907 {
908 struct mceusb_dev *ir;
909 int buf_len;
910
911 if (!urb)
912 return;
913
914 ir = urb->context;
915 if (!ir) {
916 usb_unlink_urb(urb);
917 return;
918 }
919
920 buf_len = urb->actual_length;
921
922 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
923 ir->send_flags = SEND_FLAG_COMPLETE;
924 dev_dbg(ir->dev, "setup answer received %d bytes\n",
925 buf_len);
926 }
927
928 switch (urb->status) {
929 /* success */
930 case 0:
931 mceusb_process_ir_data(ir, buf_len);
932 break;
933
934 case -ECONNRESET:
935 case -ENOENT:
936 case -ESHUTDOWN:
937 usb_unlink_urb(urb);
938 return;
939
940 case -EPIPE:
941 default:
942 dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
943 break;
944 }
945
946 usb_submit_urb(urb, GFP_ATOMIC);
947 }
948
949 static void mceusb_gen1_init(struct mceusb_dev *ir)
950 {
951 int ret;
952 int maxp = ir->len_in;
953 struct device *dev = ir->dev;
954 char *data;
955
956 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
957 if (!data) {
958 dev_err(dev, "%s: memory allocation failed!\n", __func__);
959 return;
960 }
961
962 /*
963 * This is a strange one. Windows issues a set address to the device
964 * on the receive control pipe and expect a certain value pair back
965 */
966 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
967 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
968 data, USB_CTRL_MSG_SZ, HZ * 3);
969 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
970 dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
971 __func__, data[0], data[1]);
972
973 /* set feature: bit rate 38400 bps */
974 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
975 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
976 0xc04e, 0x0000, NULL, 0, HZ * 3);
977
978 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
979
980 /* bRequest 4: set char length to 8 bits */
981 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
982 4, USB_TYPE_VENDOR,
983 0x0808, 0x0000, NULL, 0, HZ * 3);
984 dev_dbg(dev, "%s - retB = %d\n", __func__, ret);
985
986 /* bRequest 2: set handshaking to use DTR/DSR */
987 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
988 2, USB_TYPE_VENDOR,
989 0x0000, 0x0100, NULL, 0, HZ * 3);
990 dev_dbg(dev, "%s - retC = %d\n", __func__, ret);
991
992 /* device reset */
993 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
994 mce_sync_in(ir, NULL, maxp);
995
996 /* get hw/sw revision? */
997 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
998 mce_sync_in(ir, NULL, maxp);
999
1000 kfree(data);
1001 };
1002
1003 static void mceusb_gen2_init(struct mceusb_dev *ir)
1004 {
1005 int maxp = ir->len_in;
1006
1007 /* device reset */
1008 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
1009 mce_sync_in(ir, NULL, maxp);
1010
1011 /* get hw/sw revision? */
1012 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1013 mce_sync_in(ir, NULL, maxp);
1014
1015 /* unknown what the next two actually return... */
1016 mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
1017 mce_sync_in(ir, NULL, maxp);
1018 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
1019 mce_sync_in(ir, NULL, maxp);
1020 }
1021
1022 static void mceusb_get_parameters(struct mceusb_dev *ir)
1023 {
1024 int maxp = ir->len_in;
1025
1026 /* get the carrier and frequency */
1027 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
1028 mce_sync_in(ir, NULL, maxp);
1029
1030 if (!ir->flags.no_tx) {
1031 /* get the transmitter bitmask */
1032 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
1033 mce_sync_in(ir, NULL, maxp);
1034 }
1035
1036 /* get receiver timeout value */
1037 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
1038 mce_sync_in(ir, NULL, maxp);
1039
1040 /* get receiver sensor setting */
1041 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
1042 mce_sync_in(ir, NULL, maxp);
1043 }
1044
1045 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
1046 {
1047 struct device *dev = ir->dev;
1048 struct rc_dev *rc;
1049 int ret;
1050
1051 rc = rc_allocate_device();
1052 if (!rc) {
1053 dev_err(dev, "remote dev allocation failed\n");
1054 goto out;
1055 }
1056
1057 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
1058 mceusb_model[ir->model].name ?
1059 mceusb_model[ir->model].name :
1060 "Media Center Ed. eHome Infrared Remote Transceiver",
1061 le16_to_cpu(ir->usbdev->descriptor.idVendor),
1062 le16_to_cpu(ir->usbdev->descriptor.idProduct));
1063
1064 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
1065
1066 rc->input_name = ir->name;
1067 rc->input_phys = ir->phys;
1068 usb_to_input_id(ir->usbdev, &rc->input_id);
1069 rc->dev.parent = dev;
1070 rc->priv = ir;
1071 rc->driver_type = RC_DRIVER_IR_RAW;
1072 rc->allowed_protos = RC_TYPE_ALL;
1073 rc->timeout = US_TO_NS(1000);
1074 if (!ir->flags.no_tx) {
1075 rc->s_tx_mask = mceusb_set_tx_mask;
1076 rc->s_tx_carrier = mceusb_set_tx_carrier;
1077 rc->tx_ir = mceusb_tx_ir;
1078 }
1079 rc->driver_name = DRIVER_NAME;
1080 rc->map_name = mceusb_model[ir->model].rc_map ?
1081 mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE;
1082
1083 ret = rc_register_device(rc);
1084 if (ret < 0) {
1085 dev_err(dev, "remote dev registration failed\n");
1086 goto out;
1087 }
1088
1089 return rc;
1090
1091 out:
1092 rc_free_device(rc);
1093 return NULL;
1094 }
1095
1096 static int __devinit mceusb_dev_probe(struct usb_interface *intf,
1097 const struct usb_device_id *id)
1098 {
1099 struct usb_device *dev = interface_to_usbdev(intf);
1100 struct usb_host_interface *idesc;
1101 struct usb_endpoint_descriptor *ep = NULL;
1102 struct usb_endpoint_descriptor *ep_in = NULL;
1103 struct usb_endpoint_descriptor *ep_out = NULL;
1104 struct mceusb_dev *ir = NULL;
1105 int pipe, maxp, i;
1106 char buf[63], name[128] = "";
1107 enum mceusb_model_type model = id->driver_info;
1108 bool is_gen3;
1109 bool is_microsoft_gen1;
1110 bool tx_mask_normal;
1111 int ir_intfnum;
1112
1113 dev_dbg(&intf->dev, "%s called\n", __func__);
1114
1115 idesc = intf->cur_altsetting;
1116
1117 is_gen3 = mceusb_model[model].mce_gen3;
1118 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1119 tx_mask_normal = mceusb_model[model].tx_mask_normal;
1120 ir_intfnum = mceusb_model[model].ir_intfnum;
1121
1122 /* There are multi-function devices with non-IR interfaces */
1123 if (idesc->desc.bInterfaceNumber != ir_intfnum)
1124 return -ENODEV;
1125
1126 /* step through the endpoints to find first bulk in and out endpoint */
1127 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1128 ep = &idesc->endpoint[i].desc;
1129
1130 if ((ep_in == NULL)
1131 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1132 == USB_DIR_IN)
1133 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1134 == USB_ENDPOINT_XFER_BULK)
1135 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1136 == USB_ENDPOINT_XFER_INT))) {
1137
1138 ep_in = ep;
1139 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
1140 ep_in->bInterval = 1;
1141 dev_dbg(&intf->dev, "acceptable inbound endpoint "
1142 "found\n");
1143 }
1144
1145 if ((ep_out == NULL)
1146 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1147 == USB_DIR_OUT)
1148 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1149 == USB_ENDPOINT_XFER_BULK)
1150 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1151 == USB_ENDPOINT_XFER_INT))) {
1152
1153 ep_out = ep;
1154 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
1155 ep_out->bInterval = 1;
1156 dev_dbg(&intf->dev, "acceptable outbound endpoint "
1157 "found\n");
1158 }
1159 }
1160 if (ep_in == NULL) {
1161 dev_dbg(&intf->dev, "inbound and/or endpoint not found\n");
1162 return -ENODEV;
1163 }
1164
1165 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1166 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1167
1168 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1169 if (!ir)
1170 goto mem_alloc_fail;
1171
1172 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1173 if (!ir->buf_in)
1174 goto buf_in_alloc_fail;
1175
1176 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1177 if (!ir->urb_in)
1178 goto urb_in_alloc_fail;
1179
1180 ir->usbdev = dev;
1181 ir->dev = &intf->dev;
1182 ir->len_in = maxp;
1183 ir->flags.microsoft_gen1 = is_microsoft_gen1;
1184 ir->flags.tx_mask_normal = tx_mask_normal;
1185 ir->flags.no_tx = mceusb_model[model].no_tx;
1186 ir->model = model;
1187
1188 /* Saving usb interface data for use by the transmitter routine */
1189 ir->usb_ep_in = ep_in;
1190 ir->usb_ep_out = ep_out;
1191
1192 if (dev->descriptor.iManufacturer
1193 && usb_string(dev, dev->descriptor.iManufacturer,
1194 buf, sizeof(buf)) > 0)
1195 strlcpy(name, buf, sizeof(name));
1196 if (dev->descriptor.iProduct
1197 && usb_string(dev, dev->descriptor.iProduct,
1198 buf, sizeof(buf)) > 0)
1199 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1200 " %s", buf);
1201
1202 ir->rc = mceusb_init_rc_dev(ir);
1203 if (!ir->rc)
1204 goto rc_dev_fail;
1205
1206 /* flush buffers on the device */
1207 mce_sync_in(ir, NULL, maxp);
1208 mce_sync_in(ir, NULL, maxp);
1209
1210 /* wire up inbound data handler */
1211 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
1212 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
1213 ir->urb_in->transfer_dma = ir->dma_in;
1214 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1215
1216 /* initialize device */
1217 if (ir->flags.microsoft_gen1)
1218 mceusb_gen1_init(ir);
1219 else if (!is_gen3)
1220 mceusb_gen2_init(ir);
1221
1222 mceusb_get_parameters(ir);
1223
1224 if (!ir->flags.no_tx)
1225 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
1226
1227 usb_set_intfdata(intf, ir);
1228
1229 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
1230 dev->bus->busnum, dev->devnum);
1231
1232 return 0;
1233
1234 /* Error-handling path */
1235 rc_dev_fail:
1236 usb_free_urb(ir->urb_in);
1237 urb_in_alloc_fail:
1238 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1239 buf_in_alloc_fail:
1240 kfree(ir);
1241 mem_alloc_fail:
1242 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1243
1244 return -ENOMEM;
1245 }
1246
1247
1248 static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1249 {
1250 struct usb_device *dev = interface_to_usbdev(intf);
1251 struct mceusb_dev *ir = usb_get_intfdata(intf);
1252
1253 usb_set_intfdata(intf, NULL);
1254
1255 if (!ir)
1256 return;
1257
1258 ir->usbdev = NULL;
1259 rc_unregister_device(ir->rc);
1260 usb_kill_urb(ir->urb_in);
1261 usb_free_urb(ir->urb_in);
1262 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1263
1264 kfree(ir);
1265 }
1266
1267 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1268 {
1269 struct mceusb_dev *ir = usb_get_intfdata(intf);
1270 dev_info(ir->dev, "suspend\n");
1271 usb_kill_urb(ir->urb_in);
1272 return 0;
1273 }
1274
1275 static int mceusb_dev_resume(struct usb_interface *intf)
1276 {
1277 struct mceusb_dev *ir = usb_get_intfdata(intf);
1278 dev_info(ir->dev, "resume\n");
1279 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1280 return -EIO;
1281 return 0;
1282 }
1283
1284 static struct usb_driver mceusb_dev_driver = {
1285 .name = DRIVER_NAME,
1286 .probe = mceusb_dev_probe,
1287 .disconnect = mceusb_dev_disconnect,
1288 .suspend = mceusb_dev_suspend,
1289 .resume = mceusb_dev_resume,
1290 .reset_resume = mceusb_dev_resume,
1291 .id_table = mceusb_dev_table
1292 };
1293
1294 static int __init mceusb_dev_init(void)
1295 {
1296 int ret;
1297
1298 ret = usb_register(&mceusb_dev_driver);
1299 if (ret < 0)
1300 printk(KERN_ERR DRIVER_NAME
1301 ": usb register failed, result = %d\n", ret);
1302
1303 return ret;
1304 }
1305
1306 static void __exit mceusb_dev_exit(void)
1307 {
1308 usb_deregister(&mceusb_dev_driver);
1309 }
1310
1311 module_init(mceusb_dev_init);
1312 module_exit(mceusb_dev_exit);
1313
1314 MODULE_DESCRIPTION(DRIVER_DESC);
1315 MODULE_AUTHOR(DRIVER_AUTHOR);
1316 MODULE_LICENSE("GPL");
1317 MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1318
1319 module_param(debug, bool, S_IRUGO | S_IWUSR);
1320 MODULE_PARM_DESC(debug, "Debug enabled or not");
kernel source for telekom puls (alcatel/mediatek)