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Staging: Merge branch 'tidspbridge-for-2.6.39' of git://dev.omapzoom.org/pub/scm...
[deliverable/linux.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 };
152
153 struct mceusb_model {
154 u32 mce_gen1:1;
155 u32 mce_gen2:1;
156 u32 mce_gen3:1;
157 u32 tx_mask_normal:1;
158 u32 is_polaris:1;
159 u32 no_tx:1;
160
161 const char *rc_map; /* Allow specify a per-board map */
162 const char *name; /* per-board name */
163 };
164
165 static const struct mceusb_model mceusb_model[] = {
166 [MCE_GEN1] = {
167 .mce_gen1 = 1,
168 .tx_mask_normal = 1,
169 },
170 [MCE_GEN2] = {
171 .mce_gen2 = 1,
172 },
173 [MCE_GEN2_TX_INV] = {
174 .mce_gen2 = 1,
175 .tx_mask_normal = 1,
176 },
177 [MCE_GEN3] = {
178 .mce_gen3 = 1,
179 .tx_mask_normal = 1,
180 },
181 [POLARIS_EVK] = {
182 .is_polaris = 1,
183 /*
184 * In fact, the EVK is shipped without
185 * remotes, but we should have something handy,
186 * to allow testing it
187 */
188 .rc_map = RC_MAP_RC5_HAUPPAUGE_NEW,
189 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
190 },
191 [CX_HYBRID_TV] = {
192 .is_polaris = 1,
193 .no_tx = 1, /* tx isn't wired up at all */
194 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
195 },
196 };
197
198 static struct usb_device_id mceusb_dev_table[] = {
199 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
200 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
201 .driver_info = MCE_GEN1 },
202 /* Philips Infrared Transceiver - Sahara branded */
203 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
204 /* Philips Infrared Transceiver - HP branded */
205 { USB_DEVICE(VENDOR_PHILIPS, 0x060c),
206 .driver_info = MCE_GEN2_TX_INV },
207 /* Philips SRM5100 */
208 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
209 /* Philips Infrared Transceiver - Omaura */
210 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
211 /* Philips Infrared Transceiver - Spinel plus */
212 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
213 /* Philips eHome Infrared Transceiver */
214 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
215 /* Philips/Spinel plus IR transceiver for ASUS */
216 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
217 /* Philips/Spinel plus IR transceiver for ASUS */
218 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
219 /* Realtek MCE IR Receiver */
220 { USB_DEVICE(VENDOR_REALTEK, 0x0161) },
221 /* SMK/Toshiba G83C0004D410 */
222 { USB_DEVICE(VENDOR_SMK, 0x031d),
223 .driver_info = MCE_GEN2_TX_INV },
224 /* SMK eHome Infrared Transceiver (Sony VAIO) */
225 { USB_DEVICE(VENDOR_SMK, 0x0322),
226 .driver_info = MCE_GEN2_TX_INV },
227 /* bundled with Hauppauge PVR-150 */
228 { USB_DEVICE(VENDOR_SMK, 0x0334),
229 .driver_info = MCE_GEN2_TX_INV },
230 /* SMK eHome Infrared Transceiver */
231 { USB_DEVICE(VENDOR_SMK, 0x0338) },
232 /* Tatung eHome Infrared Transceiver */
233 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
234 /* Shuttle eHome Infrared Transceiver */
235 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
236 /* Shuttle eHome Infrared Transceiver */
237 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
238 /* Gateway eHome Infrared Transceiver */
239 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
240 /* Mitsumi */
241 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
242 /* Topseed eHome Infrared Transceiver */
243 { USB_DEVICE(VENDOR_TOPSEED, 0x0001),
244 .driver_info = MCE_GEN2_TX_INV },
245 /* Topseed HP eHome Infrared Transceiver */
246 { USB_DEVICE(VENDOR_TOPSEED, 0x0006),
247 .driver_info = MCE_GEN2_TX_INV },
248 /* Topseed eHome Infrared Transceiver */
249 { USB_DEVICE(VENDOR_TOPSEED, 0x0007),
250 .driver_info = MCE_GEN2_TX_INV },
251 /* Topseed eHome Infrared Transceiver */
252 { USB_DEVICE(VENDOR_TOPSEED, 0x0008),
253 .driver_info = MCE_GEN3 },
254 /* Topseed eHome Infrared Transceiver */
255 { USB_DEVICE(VENDOR_TOPSEED, 0x000a),
256 .driver_info = MCE_GEN2_TX_INV },
257 /* Topseed eHome Infrared Transceiver */
258 { USB_DEVICE(VENDOR_TOPSEED, 0x0011),
259 .driver_info = MCE_GEN2_TX_INV },
260 /* Ricavision internal Infrared Transceiver */
261 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
262 /* Itron ione Libra Q-11 */
263 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
264 /* FIC eHome Infrared Transceiver */
265 { USB_DEVICE(VENDOR_FIC, 0x9242) },
266 /* LG eHome Infrared Transceiver */
267 { USB_DEVICE(VENDOR_LG, 0x9803) },
268 /* Microsoft MCE Infrared Transceiver */
269 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
270 /* Formosa eHome Infrared Transceiver */
271 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
272 /* Formosa21 / eHome Infrared Receiver */
273 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
274 /* Formosa aim / Trust MCE Infrared Receiver */
275 { USB_DEVICE(VENDOR_FORMOSA, 0xe017) },
276 /* Formosa Industrial Computing / Beanbag Emulation Device */
277 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
278 /* Formosa21 / eHome Infrared Receiver */
279 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
280 /* Formosa Industrial Computing AIM IR605/A */
281 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
282 /* Formosa Industrial Computing */
283 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
284 /* Fintek eHome Infrared Transceiver (HP branded) */
285 { USB_DEVICE(VENDOR_FINTEK, 0x5168) },
286 /* Fintek eHome Infrared Transceiver */
287 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
288 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
289 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
290 /* Pinnacle Remote Kit */
291 { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
292 .driver_info = MCE_GEN3 },
293 /* Elitegroup Computer Systems IR */
294 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
295 /* Wistron Corp. eHome Infrared Receiver */
296 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
297 /* Compro K100 */
298 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
299 /* Compro K100 v2 */
300 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
301 /* Northstar Systems, Inc. eHome Infrared Transceiver */
302 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
303 /* TiVo PC IR Receiver */
304 { USB_DEVICE(VENDOR_TIVO, 0x2000) },
305 /* Conexant Hybrid TV "Shelby" Polaris SDK */
306 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
307 .driver_info = POLARIS_EVK },
308 /* Conexant Hybrid TV RDU253S Polaris */
309 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
310 .driver_info = CX_HYBRID_TV },
311 /* Terminating entry */
312 { }
313 };
314
315 /* data structure for each usb transceiver */
316 struct mceusb_dev {
317 /* ir-core bits */
318 struct rc_dev *rc;
319
320 /* optional features we can enable */
321 bool carrier_report_enabled;
322 bool learning_enabled;
323
324 /* core device bits */
325 struct device *dev;
326
327 /* usb */
328 struct usb_device *usbdev;
329 struct urb *urb_in;
330 struct usb_endpoint_descriptor *usb_ep_in;
331 struct usb_endpoint_descriptor *usb_ep_out;
332
333 /* buffers and dma */
334 unsigned char *buf_in;
335 unsigned int len_in;
336 dma_addr_t dma_in;
337 dma_addr_t dma_out;
338
339 enum {
340 CMD_HEADER = 0,
341 SUBCMD,
342 CMD_DATA,
343 PARSE_IRDATA,
344 } parser_state;
345
346 u8 cmd, rem; /* Remaining IR data bytes in packet */
347
348 struct {
349 u32 connected:1;
350 u32 tx_mask_normal:1;
351 u32 microsoft_gen1:1;
352 u32 no_tx:1;
353 } flags;
354
355 /* transmit support */
356 int send_flags;
357 u32 carrier;
358 unsigned char tx_mask;
359
360 char name[128];
361 char phys[64];
362 enum mceusb_model_type model;
363 };
364
365 /*
366 * MCE Device Command Strings
367 * Device command responses vary from device to device...
368 * - DEVICE_RESET resets the hardware to its default state
369 * - GET_REVISION fetches the hardware/software revision, common
370 * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
371 * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
372 * device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
373 * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
374 * ((clk / frequency) - 1)
375 * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
376 * response in the form of 9f 0c msb lsb
377 * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
378 * the form of 9f 08 bm, where bm is the bitmask
379 * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
380 * general use one or short-range learning one, in the form of
381 * 9f 14 ss, where ss is either 01 for long-range or 02 for short
382 * - SET_CARRIER_FREQ sets a new carrier mode and frequency
383 * - SET_TX_BITMASK sets the transmitter bitmask
384 * - SET_RX_TIMEOUT sets the receiver timeout
385 * - SET_RX_SENSOR sets which receiver sensor to use
386 */
387 static char DEVICE_RESET[] = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER,
388 MCE_CMD_DEVICE_RESET};
389 static char GET_REVISION[] = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION};
390 static char GET_UNKNOWN[] = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7};
391 static char GET_UNKNOWN2[] = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2};
392 static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER};
393 static char GET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT};
394 static char GET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK};
395 static char GET_RX_SENSOR[] = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR};
396 /* sub in desired values in lower byte or bytes for full command */
397 /* FIXME: make use of these for transmit.
398 static char SET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER,
399 MCE_CMD_S_CARRIER, 0x00, 0x00};
400 static char SET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00};
401 static char SET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER,
402 MCE_CMD_S_TIMEOUT, 0x00, 0x00};
403 static char SET_RX_SENSOR[] = {MCE_COMMAND_HEADER,
404 MCE_CMD_S_RXSENSOR, 0x00};
405 */
406
407 static int mceusb_cmdsize(u8 cmd, u8 subcmd)
408 {
409 int datasize = 0;
410
411 switch (cmd) {
412 case MCE_COMMAND_NULL:
413 if (subcmd == MCE_HW_CMD_HEADER)
414 datasize = 1;
415 break;
416 case MCE_HW_CMD_HEADER:
417 switch (subcmd) {
418 case MCE_CMD_G_REVISION:
419 datasize = 2;
420 break;
421 }
422 case MCE_COMMAND_HEADER:
423 switch (subcmd) {
424 case MCE_CMD_UNKNOWN:
425 case MCE_CMD_S_CARRIER:
426 case MCE_CMD_S_TIMEOUT:
427 case MCE_RSP_PULSE_COUNT:
428 datasize = 2;
429 break;
430 case MCE_CMD_SIG_END:
431 case MCE_CMD_S_TXMASK:
432 case MCE_CMD_S_RXSENSOR:
433 datasize = 1;
434 break;
435 }
436 }
437 return datasize;
438 }
439
440 static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
441 int offset, int len, bool out)
442 {
443 char codes[USB_BUFLEN * 3 + 1];
444 char inout[9];
445 u8 cmd, subcmd, data1, data2;
446 struct device *dev = ir->dev;
447 int i, start, skip = 0;
448
449 if (!debug)
450 return;
451
452 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
453 if (ir->flags.microsoft_gen1 && !out && !offset)
454 skip = 2;
455
456 if (len <= skip)
457 return;
458
459 for (i = 0; i < len && i < USB_BUFLEN; i++)
460 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff);
461
462 dev_info(dev, "%sx data: %s(length=%d)\n",
463 (out ? "t" : "r"), codes, len);
464
465 if (out)
466 strcpy(inout, "Request\0");
467 else
468 strcpy(inout, "Got\0");
469
470 start = offset + skip;
471 cmd = buf[start] & 0xff;
472 subcmd = buf[start + 1] & 0xff;
473 data1 = buf[start + 2] & 0xff;
474 data2 = buf[start + 3] & 0xff;
475
476 switch (cmd) {
477 case MCE_COMMAND_NULL:
478 if ((subcmd == MCE_HW_CMD_HEADER) &&
479 (data1 == MCE_CMD_DEVICE_RESET))
480 dev_info(dev, "Device reset requested\n");
481 else
482 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
483 cmd, subcmd);
484 break;
485 case MCE_HW_CMD_HEADER:
486 switch (subcmd) {
487 case MCE_CMD_G_REVISION:
488 if (len == 2)
489 dev_info(dev, "Get hw/sw rev?\n");
490 else
491 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
492 "0x%02x 0x%02x\n", data1, data2,
493 buf[start + 4], buf[start + 5]);
494 break;
495 case MCE_CMD_DEVICE_RESET:
496 dev_info(dev, "Device reset requested\n");
497 break;
498 case MCE_RSP_CMD_INVALID:
499 dev_info(dev, "Previous command not supported\n");
500 break;
501 case MCE_CMD_UNKNOWN7:
502 case MCE_CMD_UNKNOWN9:
503 default:
504 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
505 cmd, subcmd);
506 break;
507 }
508 break;
509 case MCE_COMMAND_HEADER:
510 switch (subcmd) {
511 case MCE_CMD_SIG_END:
512 dev_info(dev, "End of signal\n");
513 break;
514 case MCE_CMD_PING:
515 dev_info(dev, "Ping\n");
516 break;
517 case MCE_CMD_UNKNOWN:
518 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
519 data1, data2);
520 break;
521 case MCE_CMD_S_CARRIER:
522 dev_info(dev, "%s carrier mode and freq of "
523 "0x%02x 0x%02x\n", inout, data1, data2);
524 break;
525 case MCE_CMD_G_CARRIER:
526 dev_info(dev, "Get carrier mode and freq\n");
527 break;
528 case MCE_CMD_S_TXMASK:
529 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
530 inout, data1);
531 break;
532 case MCE_CMD_S_TIMEOUT:
533 /* value is in units of 50us, so x*50/100 or x/2 ms */
534 dev_info(dev, "%s receive timeout of %d ms\n",
535 inout, ((data1 << 8) | data2) / 2);
536 break;
537 case MCE_CMD_G_TIMEOUT:
538 dev_info(dev, "Get receive timeout\n");
539 break;
540 case MCE_CMD_G_TXMASK:
541 dev_info(dev, "Get transmit blaster mask\n");
542 break;
543 case MCE_CMD_S_RXSENSOR:
544 dev_info(dev, "%s %s-range receive sensor in use\n",
545 inout, data1 == 0x02 ? "short" : "long");
546 break;
547 case MCE_CMD_G_RXSENSOR:
548 /* aka MCE_RSP_PULSE_COUNT */
549 if (out)
550 dev_info(dev, "Get receive sensor\n");
551 else if (ir->learning_enabled)
552 dev_info(dev, "RX pulse count: %d\n",
553 ((data1 << 8) | data2));
554 break;
555 case MCE_RSP_CMD_INVALID:
556 dev_info(dev, "Error! Hardware is likely wedged...\n");
557 break;
558 case MCE_CMD_UNKNOWN2:
559 case MCE_CMD_UNKNOWN3:
560 case MCE_CMD_UNKNOWN5:
561 default:
562 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
563 cmd, subcmd);
564 break;
565 }
566 break;
567 default:
568 break;
569 }
570
571 if (cmd == MCE_IRDATA_TRAILER)
572 dev_info(dev, "End of raw IR data\n");
573 else if ((cmd != MCE_COMMAND_HEADER) &&
574 ((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA))
575 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
576 }
577
578 static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
579 {
580 struct mceusb_dev *ir;
581 int len;
582
583 if (!urb)
584 return;
585
586 ir = urb->context;
587 if (ir) {
588 len = urb->actual_length;
589
590 dev_dbg(ir->dev, "callback called (status=%d len=%d)\n",
591 urb->status, len);
592
593 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
594 }
595
596 }
597
598 /* request incoming or send outgoing usb packet - used to initialize remote */
599 static void mce_request_packet(struct mceusb_dev *ir,
600 struct usb_endpoint_descriptor *ep,
601 unsigned char *data, int size, int urb_type)
602 {
603 int res;
604 struct urb *async_urb;
605 struct device *dev = ir->dev;
606 unsigned char *async_buf;
607
608 if (urb_type == MCEUSB_TX) {
609 async_urb = usb_alloc_urb(0, GFP_KERNEL);
610 if (unlikely(!async_urb)) {
611 dev_err(dev, "Error, couldn't allocate urb!\n");
612 return;
613 }
614
615 async_buf = kzalloc(size, GFP_KERNEL);
616 if (!async_buf) {
617 dev_err(dev, "Error, couldn't allocate buf!\n");
618 usb_free_urb(async_urb);
619 return;
620 }
621
622 /* outbound data */
623 usb_fill_int_urb(async_urb, ir->usbdev,
624 usb_sndintpipe(ir->usbdev, ep->bEndpointAddress),
625 async_buf, size, (usb_complete_t)mce_async_callback,
626 ir, ep->bInterval);
627 memcpy(async_buf, data, size);
628
629 } else if (urb_type == MCEUSB_RX) {
630 /* standard request */
631 async_urb = ir->urb_in;
632 ir->send_flags = RECV_FLAG_IN_PROGRESS;
633
634 } else {
635 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
636 return;
637 }
638
639 dev_dbg(dev, "receive request called (size=%#x)\n", size);
640
641 async_urb->transfer_buffer_length = size;
642 async_urb->dev = ir->usbdev;
643
644 res = usb_submit_urb(async_urb, GFP_ATOMIC);
645 if (res) {
646 dev_dbg(dev, "receive request FAILED! (res=%d)\n", res);
647 return;
648 }
649 dev_dbg(dev, "receive request complete (res=%d)\n", res);
650 }
651
652 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
653 {
654 mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX);
655 }
656
657 static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size)
658 {
659 mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX);
660 }
661
662 /* Send data out the IR blaster port(s) */
663 static int mceusb_tx_ir(struct rc_dev *dev, int *txbuf, u32 n)
664 {
665 struct mceusb_dev *ir = dev->priv;
666 int i, ret = 0;
667 int count, cmdcount = 0;
668 unsigned char *cmdbuf; /* MCE command buffer */
669 long signal_duration = 0; /* Singnal length in us */
670 struct timeval start_time, end_time;
671
672 do_gettimeofday(&start_time);
673
674 count = n / sizeof(int);
675
676 cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL);
677 if (!cmdbuf)
678 return -ENOMEM;
679
680 /* MCE tx init header */
681 cmdbuf[cmdcount++] = MCE_COMMAND_HEADER;
682 cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK;
683 cmdbuf[cmdcount++] = ir->tx_mask;
684
685 /* Generate mce packet data */
686 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
687 signal_duration += txbuf[i];
688 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
689
690 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
691
692 /* Insert mce packet header every 4th entry */
693 if ((cmdcount < MCE_CMDBUF_SIZE) &&
694 (cmdcount - MCE_TX_HEADER_LENGTH) %
695 MCE_CODE_LENGTH == 0)
696 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
697
698 /* Insert mce packet data */
699 if (cmdcount < MCE_CMDBUF_SIZE)
700 cmdbuf[cmdcount++] =
701 (txbuf[i] < MCE_PULSE_BIT ?
702 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
703 (i & 1 ? 0x00 : MCE_PULSE_BIT);
704 else {
705 ret = -EINVAL;
706 goto out;
707 }
708
709 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
710 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
711 }
712
713 /* Fix packet length in last header */
714 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
715 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) %
716 MCE_CODE_LENGTH - 1;
717
718 /* Check if we have room for the empty packet at the end */
719 if (cmdcount >= MCE_CMDBUF_SIZE) {
720 ret = -EINVAL;
721 goto out;
722 }
723
724 /* All mce commands end with an empty packet (0x80) */
725 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
726
727 /* Transmit the command to the mce device */
728 mce_async_out(ir, cmdbuf, cmdcount);
729
730 /*
731 * The lircd gap calculation expects the write function to
732 * wait the time it takes for the ircommand to be sent before
733 * it returns.
734 */
735 do_gettimeofday(&end_time);
736 signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
737 (end_time.tv_sec - start_time.tv_sec) * 1000000;
738
739 /* delay with the closest number of ticks */
740 set_current_state(TASK_INTERRUPTIBLE);
741 schedule_timeout(usecs_to_jiffies(signal_duration));
742
743 out:
744 kfree(cmdbuf);
745 return ret ? ret : n;
746 }
747
748 /* Sets active IR outputs -- mce devices typically have two */
749 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
750 {
751 struct mceusb_dev *ir = dev->priv;
752
753 if (ir->flags.tx_mask_normal)
754 ir->tx_mask = mask;
755 else
756 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
757 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
758
759 return 0;
760 }
761
762 /* Sets the send carrier frequency and mode */
763 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
764 {
765 struct mceusb_dev *ir = dev->priv;
766 int clk = 10000000;
767 int prescaler = 0, divisor = 0;
768 unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER,
769 MCE_CMD_S_CARRIER, 0x00, 0x00 };
770
771 /* Carrier has changed */
772 if (ir->carrier != carrier) {
773
774 if (carrier == 0) {
775 ir->carrier = carrier;
776 cmdbuf[2] = MCE_CMD_SIG_END;
777 cmdbuf[3] = MCE_IRDATA_TRAILER;
778 dev_dbg(ir->dev, "%s: disabling carrier "
779 "modulation\n", __func__);
780 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
781 return carrier;
782 }
783
784 for (prescaler = 0; prescaler < 4; ++prescaler) {
785 divisor = (clk >> (2 * prescaler)) / carrier;
786 if (divisor <= 0xff) {
787 ir->carrier = carrier;
788 cmdbuf[2] = prescaler;
789 cmdbuf[3] = divisor;
790 dev_dbg(ir->dev, "%s: requesting %u HZ "
791 "carrier\n", __func__, carrier);
792
793 /* Transmit new carrier to mce device */
794 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
795 return carrier;
796 }
797 }
798
799 return -EINVAL;
800
801 }
802
803 return carrier;
804 }
805
806 /*
807 * We don't do anything but print debug spew for many of the command bits
808 * we receive from the hardware, but some of them are useful information
809 * we want to store so that we can use them.
810 */
811 static void mceusb_handle_command(struct mceusb_dev *ir, int index)
812 {
813 u8 hi = ir->buf_in[index + 1] & 0xff;
814 u8 lo = ir->buf_in[index + 2] & 0xff;
815
816 switch (ir->buf_in[index]) {
817 /* 2-byte return value commands */
818 case MCE_CMD_S_TIMEOUT:
819 ir->rc->timeout = MS_TO_NS((hi << 8 | lo) / 2);
820 break;
821
822 /* 1-byte return value commands */
823 case MCE_CMD_S_TXMASK:
824 ir->tx_mask = hi;
825 break;
826 case MCE_CMD_S_RXSENSOR:
827 ir->learning_enabled = (hi == 0x02);
828 break;
829 default:
830 break;
831 }
832 }
833
834 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
835 {
836 DEFINE_IR_RAW_EVENT(rawir);
837 int i = 0;
838
839 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
840 if (ir->flags.microsoft_gen1)
841 i = 2;
842
843 /* if there's no data, just return now */
844 if (buf_len <= i)
845 return;
846
847 for (; i < buf_len; i++) {
848 switch (ir->parser_state) {
849 case SUBCMD:
850 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
851 mceusb_dev_printdata(ir, ir->buf_in, i - 1,
852 ir->rem + 2, false);
853 mceusb_handle_command(ir, i);
854 ir->parser_state = CMD_DATA;
855 break;
856 case PARSE_IRDATA:
857 ir->rem--;
858 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
859 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
860 * MS_TO_US(MCE_TIME_UNIT);
861
862 dev_dbg(ir->dev, "Storing %s with duration %d\n",
863 rawir.pulse ? "pulse" : "space",
864 rawir.duration);
865
866 ir_raw_event_store_with_filter(ir->rc, &rawir);
867 break;
868 case CMD_DATA:
869 ir->rem--;
870 break;
871 case CMD_HEADER:
872 /* decode mce packets of the form (84),AA,BB,CC,DD */
873 /* IR data packets can span USB messages - rem */
874 ir->cmd = ir->buf_in[i];
875 if ((ir->cmd == MCE_COMMAND_HEADER) ||
876 ((ir->cmd & MCE_COMMAND_MASK) !=
877 MCE_COMMAND_IRDATA)) {
878 ir->parser_state = SUBCMD;
879 continue;
880 }
881 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
882 mceusb_dev_printdata(ir, ir->buf_in,
883 i, ir->rem + 1, false);
884 if (ir->rem)
885 ir->parser_state = PARSE_IRDATA;
886 break;
887 }
888
889 if (ir->parser_state != CMD_HEADER && !ir->rem)
890 ir->parser_state = CMD_HEADER;
891 }
892 dev_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
893 ir_raw_event_handle(ir->rc);
894 }
895
896 static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
897 {
898 struct mceusb_dev *ir;
899 int buf_len;
900
901 if (!urb)
902 return;
903
904 ir = urb->context;
905 if (!ir) {
906 usb_unlink_urb(urb);
907 return;
908 }
909
910 buf_len = urb->actual_length;
911
912 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
913 ir->send_flags = SEND_FLAG_COMPLETE;
914 dev_dbg(ir->dev, "setup answer received %d bytes\n",
915 buf_len);
916 }
917
918 switch (urb->status) {
919 /* success */
920 case 0:
921 mceusb_process_ir_data(ir, buf_len);
922 break;
923
924 case -ECONNRESET:
925 case -ENOENT:
926 case -ESHUTDOWN:
927 usb_unlink_urb(urb);
928 return;
929
930 case -EPIPE:
931 default:
932 dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
933 break;
934 }
935
936 usb_submit_urb(urb, GFP_ATOMIC);
937 }
938
939 static void mceusb_gen1_init(struct mceusb_dev *ir)
940 {
941 int ret;
942 int maxp = ir->len_in;
943 struct device *dev = ir->dev;
944 char *data;
945
946 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
947 if (!data) {
948 dev_err(dev, "%s: memory allocation failed!\n", __func__);
949 return;
950 }
951
952 /*
953 * This is a strange one. Windows issues a set address to the device
954 * on the receive control pipe and expect a certain value pair back
955 */
956 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
957 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
958 data, USB_CTRL_MSG_SZ, HZ * 3);
959 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
960 dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
961 __func__, data[0], data[1]);
962
963 /* set feature: bit rate 38400 bps */
964 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
965 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
966 0xc04e, 0x0000, NULL, 0, HZ * 3);
967
968 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
969
970 /* bRequest 4: set char length to 8 bits */
971 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
972 4, USB_TYPE_VENDOR,
973 0x0808, 0x0000, NULL, 0, HZ * 3);
974 dev_dbg(dev, "%s - retB = %d\n", __func__, ret);
975
976 /* bRequest 2: set handshaking to use DTR/DSR */
977 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
978 2, USB_TYPE_VENDOR,
979 0x0000, 0x0100, NULL, 0, HZ * 3);
980 dev_dbg(dev, "%s - retC = %d\n", __func__, ret);
981
982 /* device reset */
983 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
984 mce_sync_in(ir, NULL, maxp);
985
986 /* get hw/sw revision? */
987 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
988 mce_sync_in(ir, NULL, maxp);
989
990 kfree(data);
991 };
992
993 static void mceusb_gen2_init(struct mceusb_dev *ir)
994 {
995 int maxp = ir->len_in;
996
997 /* device reset */
998 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
999 mce_sync_in(ir, NULL, maxp);
1000
1001 /* get hw/sw revision? */
1002 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1003 mce_sync_in(ir, NULL, maxp);
1004
1005 /* unknown what the next two actually return... */
1006 mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
1007 mce_sync_in(ir, NULL, maxp);
1008 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
1009 mce_sync_in(ir, NULL, maxp);
1010 }
1011
1012 static void mceusb_get_parameters(struct mceusb_dev *ir)
1013 {
1014 int maxp = ir->len_in;
1015
1016 /* get the carrier and frequency */
1017 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
1018 mce_sync_in(ir, NULL, maxp);
1019
1020 if (!ir->flags.no_tx) {
1021 /* get the transmitter bitmask */
1022 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
1023 mce_sync_in(ir, NULL, maxp);
1024 }
1025
1026 /* get receiver timeout value */
1027 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
1028 mce_sync_in(ir, NULL, maxp);
1029
1030 /* get receiver sensor setting */
1031 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
1032 mce_sync_in(ir, NULL, maxp);
1033 }
1034
1035 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
1036 {
1037 struct device *dev = ir->dev;
1038 struct rc_dev *rc;
1039 int ret;
1040
1041 rc = rc_allocate_device();
1042 if (!rc) {
1043 dev_err(dev, "remote dev allocation failed\n");
1044 goto out;
1045 }
1046
1047 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
1048 mceusb_model[ir->model].name ?
1049 mceusb_model[ir->model].name :
1050 "Media Center Ed. eHome Infrared Remote Transceiver",
1051 le16_to_cpu(ir->usbdev->descriptor.idVendor),
1052 le16_to_cpu(ir->usbdev->descriptor.idProduct));
1053
1054 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
1055
1056 rc->input_name = ir->name;
1057 rc->input_phys = ir->phys;
1058 usb_to_input_id(ir->usbdev, &rc->input_id);
1059 rc->dev.parent = dev;
1060 rc->priv = ir;
1061 rc->driver_type = RC_DRIVER_IR_RAW;
1062 rc->allowed_protos = RC_TYPE_ALL;
1063 rc->timeout = MS_TO_NS(1000);
1064 if (!ir->flags.no_tx) {
1065 rc->s_tx_mask = mceusb_set_tx_mask;
1066 rc->s_tx_carrier = mceusb_set_tx_carrier;
1067 rc->tx_ir = mceusb_tx_ir;
1068 }
1069 rc->driver_name = DRIVER_NAME;
1070 rc->map_name = mceusb_model[ir->model].rc_map ?
1071 mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE;
1072
1073 ret = rc_register_device(rc);
1074 if (ret < 0) {
1075 dev_err(dev, "remote dev registration failed\n");
1076 goto out;
1077 }
1078
1079 return rc;
1080
1081 out:
1082 rc_free_device(rc);
1083 return NULL;
1084 }
1085
1086 static int __devinit mceusb_dev_probe(struct usb_interface *intf,
1087 const struct usb_device_id *id)
1088 {
1089 struct usb_device *dev = interface_to_usbdev(intf);
1090 struct usb_host_interface *idesc;
1091 struct usb_endpoint_descriptor *ep = NULL;
1092 struct usb_endpoint_descriptor *ep_in = NULL;
1093 struct usb_endpoint_descriptor *ep_out = NULL;
1094 struct mceusb_dev *ir = NULL;
1095 int pipe, maxp, i;
1096 char buf[63], name[128] = "";
1097 enum mceusb_model_type model = id->driver_info;
1098 bool is_gen3;
1099 bool is_microsoft_gen1;
1100 bool tx_mask_normal;
1101 bool is_polaris;
1102
1103 dev_dbg(&intf->dev, "%s called\n", __func__);
1104
1105 idesc = intf->cur_altsetting;
1106
1107 is_gen3 = mceusb_model[model].mce_gen3;
1108 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1109 tx_mask_normal = mceusb_model[model].tx_mask_normal;
1110 is_polaris = mceusb_model[model].is_polaris;
1111
1112 if (is_polaris) {
1113 /* Interface 0 is IR */
1114 if (idesc->desc.bInterfaceNumber)
1115 return -ENODEV;
1116 }
1117
1118 /* step through the endpoints to find first bulk in and out endpoint */
1119 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1120 ep = &idesc->endpoint[i].desc;
1121
1122 if ((ep_in == NULL)
1123 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1124 == USB_DIR_IN)
1125 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1126 == USB_ENDPOINT_XFER_BULK)
1127 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1128 == USB_ENDPOINT_XFER_INT))) {
1129
1130 ep_in = ep;
1131 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
1132 ep_in->bInterval = 1;
1133 dev_dbg(&intf->dev, "acceptable inbound endpoint "
1134 "found\n");
1135 }
1136
1137 if ((ep_out == NULL)
1138 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1139 == USB_DIR_OUT)
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_out = ep;
1146 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
1147 ep_out->bInterval = 1;
1148 dev_dbg(&intf->dev, "acceptable outbound endpoint "
1149 "found\n");
1150 }
1151 }
1152 if (ep_in == NULL) {
1153 dev_dbg(&intf->dev, "inbound and/or endpoint not found\n");
1154 return -ENODEV;
1155 }
1156
1157 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1158 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1159
1160 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1161 if (!ir)
1162 goto mem_alloc_fail;
1163
1164 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1165 if (!ir->buf_in)
1166 goto buf_in_alloc_fail;
1167
1168 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1169 if (!ir->urb_in)
1170 goto urb_in_alloc_fail;
1171
1172 ir->usbdev = dev;
1173 ir->dev = &intf->dev;
1174 ir->len_in = maxp;
1175 ir->flags.microsoft_gen1 = is_microsoft_gen1;
1176 ir->flags.tx_mask_normal = tx_mask_normal;
1177 ir->flags.no_tx = mceusb_model[model].no_tx;
1178 ir->model = model;
1179
1180 /* Saving usb interface data for use by the transmitter routine */
1181 ir->usb_ep_in = ep_in;
1182 ir->usb_ep_out = ep_out;
1183
1184 if (dev->descriptor.iManufacturer
1185 && usb_string(dev, dev->descriptor.iManufacturer,
1186 buf, sizeof(buf)) > 0)
1187 strlcpy(name, buf, sizeof(name));
1188 if (dev->descriptor.iProduct
1189 && usb_string(dev, dev->descriptor.iProduct,
1190 buf, sizeof(buf)) > 0)
1191 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1192 " %s", buf);
1193
1194 ir->rc = mceusb_init_rc_dev(ir);
1195 if (!ir->rc)
1196 goto rc_dev_fail;
1197
1198 /* flush buffers on the device */
1199 mce_sync_in(ir, NULL, maxp);
1200 mce_sync_in(ir, NULL, maxp);
1201
1202 /* wire up inbound data handler */
1203 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
1204 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
1205 ir->urb_in->transfer_dma = ir->dma_in;
1206 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1207
1208 /* initialize device */
1209 if (ir->flags.microsoft_gen1)
1210 mceusb_gen1_init(ir);
1211 else if (!is_gen3)
1212 mceusb_gen2_init(ir);
1213
1214 mceusb_get_parameters(ir);
1215
1216 if (!ir->flags.no_tx)
1217 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
1218
1219 usb_set_intfdata(intf, ir);
1220
1221 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
1222 dev->bus->busnum, dev->devnum);
1223
1224 return 0;
1225
1226 /* Error-handling path */
1227 rc_dev_fail:
1228 usb_free_urb(ir->urb_in);
1229 urb_in_alloc_fail:
1230 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1231 buf_in_alloc_fail:
1232 kfree(ir);
1233 mem_alloc_fail:
1234 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1235
1236 return -ENOMEM;
1237 }
1238
1239
1240 static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1241 {
1242 struct usb_device *dev = interface_to_usbdev(intf);
1243 struct mceusb_dev *ir = usb_get_intfdata(intf);
1244
1245 usb_set_intfdata(intf, NULL);
1246
1247 if (!ir)
1248 return;
1249
1250 ir->usbdev = NULL;
1251 rc_unregister_device(ir->rc);
1252 usb_kill_urb(ir->urb_in);
1253 usb_free_urb(ir->urb_in);
1254 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1255
1256 kfree(ir);
1257 }
1258
1259 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1260 {
1261 struct mceusb_dev *ir = usb_get_intfdata(intf);
1262 dev_info(ir->dev, "suspend\n");
1263 usb_kill_urb(ir->urb_in);
1264 return 0;
1265 }
1266
1267 static int mceusb_dev_resume(struct usb_interface *intf)
1268 {
1269 struct mceusb_dev *ir = usb_get_intfdata(intf);
1270 dev_info(ir->dev, "resume\n");
1271 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1272 return -EIO;
1273 return 0;
1274 }
1275
1276 static struct usb_driver mceusb_dev_driver = {
1277 .name = DRIVER_NAME,
1278 .probe = mceusb_dev_probe,
1279 .disconnect = mceusb_dev_disconnect,
1280 .suspend = mceusb_dev_suspend,
1281 .resume = mceusb_dev_resume,
1282 .reset_resume = mceusb_dev_resume,
1283 .id_table = mceusb_dev_table
1284 };
1285
1286 static int __init mceusb_dev_init(void)
1287 {
1288 int ret;
1289
1290 ret = usb_register(&mceusb_dev_driver);
1291 if (ret < 0)
1292 printk(KERN_ERR DRIVER_NAME
1293 ": usb register failed, result = %d\n", ret);
1294
1295 return ret;
1296 }
1297
1298 static void __exit mceusb_dev_exit(void)
1299 {
1300 usb_deregister(&mceusb_dev_driver);
1301 }
1302
1303 module_init(mceusb_dev_init);
1304 module_exit(mceusb_dev_exit);
1305
1306 MODULE_DESCRIPTION(DRIVER_DESC);
1307 MODULE_AUTHOR(DRIVER_AUTHOR);
1308 MODULE_LICENSE("GPL");
1309 MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1310
1311 module_param(debug, bool, S_IRUGO | S_IWUSR);
1312 MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux kernel - Deliverables
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