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539bec2974b71bd4a6eda37dda091e58c1ef93cd
[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/ir-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 #define MS_TO_NS(msec) ((msec) * 1000)
52
53 /* MCE constants */
54 #define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */
55 #define MCE_TIME_UNIT 50 /* Approx 50us resolution */
56 #define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */
57 #define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */
58 #define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */
59 #define MCE_IRDATA_TRAILER 0x80 /* End of IR data */
60 #define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */
61 #define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */
62 #define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */
63 #define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */
64 #define MCE_PULSE_MASK 0x7f /* Pulse mask */
65 #define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */
66
67 #define MCE_HW_CMD_HEADER 0xff /* MCE hardware command header */
68 #define MCE_COMMAND_HEADER 0x9f /* MCE command header */
69 #define MCE_COMMAND_MASK 0xe0 /* Mask out command bits */
70 #define MCE_COMMAND_NULL 0x00 /* These show up various places... */
71 /* if buf[i] & MCE_COMMAND_MASK == 0x80 and buf[i] != MCE_COMMAND_HEADER,
72 * then we're looking at a raw IR data sample */
73 #define MCE_COMMAND_IRDATA 0x80
74 #define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
75
76 /* Sub-commands, which follow MCE_COMMAND_HEADER or MCE_HW_CMD_HEADER */
77 #define MCE_CMD_SIG_END 0x01 /* End of signal */
78 #define MCE_CMD_PING 0x03 /* Ping device */
79 #define MCE_CMD_UNKNOWN 0x04 /* Unknown */
80 #define MCE_CMD_UNKNOWN2 0x05 /* Unknown */
81 #define MCE_CMD_S_CARRIER 0x06 /* Set TX carrier frequency */
82 #define MCE_CMD_G_CARRIER 0x07 /* Get TX carrier frequency */
83 #define MCE_CMD_S_TXMASK 0x08 /* Set TX port bitmask */
84 #define MCE_CMD_UNKNOWN3 0x09 /* Unknown */
85 #define MCE_CMD_UNKNOWN4 0x0a /* Unknown */
86 #define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */
87 #define MCE_CMD_S_TIMEOUT 0x0c /* Set RX timeout value */
88 #define MCE_CMD_G_TIMEOUT 0x0d /* Get RX timeout value */
89 #define MCE_CMD_UNKNOWN5 0x0e /* Unknown */
90 #define MCE_CMD_UNKNOWN6 0x0f /* Unknown */
91 #define MCE_CMD_G_RXPORTSTS 0x11 /* Get RX port status */
92 #define MCE_CMD_G_TXMASK 0x13 /* Set TX port bitmask */
93 #define MCE_CMD_S_RXSENSOR 0x14 /* Set RX sensor (std/learning) */
94 #define MCE_CMD_G_RXSENSOR 0x15 /* Get RX sensor (std/learning) */
95 #define MCE_RSP_PULSE_COUNT 0x15 /* RX pulse count (only if learning) */
96 #define MCE_CMD_TX_PORTS 0x16 /* Get number of TX ports */
97 #define MCE_CMD_G_WAKESRC 0x17 /* Get wake source */
98 #define MCE_CMD_UNKNOWN7 0x18 /* Unknown */
99 #define MCE_CMD_UNKNOWN8 0x19 /* Unknown */
100 #define MCE_CMD_UNKNOWN9 0x1b /* Unknown */
101 #define MCE_CMD_DEVICE_RESET 0xaa /* Reset the hardware */
102 #define MCE_RSP_CMD_INVALID 0xfe /* Invalid command issued */
103
104
105 /* module parameters */
106 #ifdef CONFIG_USB_DEBUG
107 static int debug = 1;
108 #else
109 static int debug;
110 #endif
111
112 /* general constants */
113 #define SEND_FLAG_IN_PROGRESS 1
114 #define SEND_FLAG_COMPLETE 2
115 #define RECV_FLAG_IN_PROGRESS 3
116 #define RECV_FLAG_COMPLETE 4
117
118 #define MCEUSB_RX 1
119 #define MCEUSB_TX 2
120
121 #define VENDOR_PHILIPS 0x0471
122 #define VENDOR_SMK 0x0609
123 #define VENDOR_TATUNG 0x1460
124 #define VENDOR_GATEWAY 0x107b
125 #define VENDOR_SHUTTLE 0x1308
126 #define VENDOR_SHUTTLE2 0x051c
127 #define VENDOR_MITSUMI 0x03ee
128 #define VENDOR_TOPSEED 0x1784
129 #define VENDOR_RICAVISION 0x179d
130 #define VENDOR_ITRON 0x195d
131 #define VENDOR_FIC 0x1509
132 #define VENDOR_LG 0x043e
133 #define VENDOR_MICROSOFT 0x045e
134 #define VENDOR_FORMOSA 0x147a
135 #define VENDOR_FINTEK 0x1934
136 #define VENDOR_PINNACLE 0x2304
137 #define VENDOR_ECS 0x1019
138 #define VENDOR_WISTRON 0x0fb8
139 #define VENDOR_COMPRO 0x185b
140 #define VENDOR_NORTHSTAR 0x04eb
141 #define VENDOR_REALTEK 0x0bda
142 #define VENDOR_TIVO 0x105a
143 #define VENDOR_CONEXANT 0x0572
144
145 enum mceusb_model_type {
146 MCE_GEN2 = 0, /* Most boards */
147 MCE_GEN1,
148 MCE_GEN3,
149 MCE_GEN2_TX_INV,
150 POLARIS_EVK,
151 CX_HYBRID_TV,
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 is_polaris:1;
160 u32 no_tx:1;
161
162 const char *rc_map; /* Allow specify a per-board map */
163 const char *name; /* per-board name */
164 };
165
166 static const struct mceusb_model mceusb_model[] = {
167 [MCE_GEN1] = {
168 .mce_gen1 = 1,
169 .tx_mask_normal = 1,
170 },
171 [MCE_GEN2] = {
172 .mce_gen2 = 1,
173 },
174 [MCE_GEN2_TX_INV] = {
175 .mce_gen2 = 1,
176 .tx_mask_normal = 1,
177 },
178 [MCE_GEN3] = {
179 .mce_gen3 = 1,
180 .tx_mask_normal = 1,
181 },
182 [POLARIS_EVK] = {
183 .is_polaris = 1,
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_RC5_HAUPPAUGE_NEW,
190 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
191 },
192 [CX_HYBRID_TV] = {
193 .is_polaris = 1,
194 .no_tx = 1, /* tx isn't wired up at all */
195 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
196 },
197 };
198
199 static struct usb_device_id mceusb_dev_table[] = {
200 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
201 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
202 .driver_info = MCE_GEN1 },
203 /* Philips Infrared Transceiver - Sahara branded */
204 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
205 /* Philips Infrared Transceiver - HP branded */
206 { USB_DEVICE(VENDOR_PHILIPS, 0x060c),
207 .driver_info = MCE_GEN2_TX_INV },
208 /* Philips SRM5100 */
209 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
210 /* Philips Infrared Transceiver - Omaura */
211 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
212 /* Philips Infrared Transceiver - Spinel plus */
213 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
214 /* Philips eHome Infrared Transceiver */
215 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
216 /* Philips/Spinel plus IR transceiver for ASUS */
217 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
218 /* Philips/Spinel plus IR transceiver for ASUS */
219 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
220 /* Realtek MCE IR Receiver */
221 { USB_DEVICE(VENDOR_REALTEK, 0x0161) },
222 /* SMK/Toshiba G83C0004D410 */
223 { USB_DEVICE(VENDOR_SMK, 0x031d),
224 .driver_info = MCE_GEN2_TX_INV },
225 /* SMK eHome Infrared Transceiver (Sony VAIO) */
226 { USB_DEVICE(VENDOR_SMK, 0x0322),
227 .driver_info = MCE_GEN2_TX_INV },
228 /* bundled with Hauppauge PVR-150 */
229 { USB_DEVICE(VENDOR_SMK, 0x0334),
230 .driver_info = MCE_GEN2_TX_INV },
231 /* SMK eHome Infrared Transceiver */
232 { USB_DEVICE(VENDOR_SMK, 0x0338) },
233 /* Tatung eHome Infrared Transceiver */
234 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
235 /* Shuttle eHome Infrared Transceiver */
236 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
237 /* Shuttle eHome Infrared Transceiver */
238 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
239 /* Gateway eHome Infrared Transceiver */
240 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
241 /* Mitsumi */
242 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
243 /* Topseed eHome Infrared Transceiver */
244 { USB_DEVICE(VENDOR_TOPSEED, 0x0001),
245 .driver_info = MCE_GEN2_TX_INV },
246 /* Topseed HP eHome Infrared Transceiver */
247 { USB_DEVICE(VENDOR_TOPSEED, 0x0006),
248 .driver_info = MCE_GEN2_TX_INV },
249 /* Topseed eHome Infrared Transceiver */
250 { USB_DEVICE(VENDOR_TOPSEED, 0x0007),
251 .driver_info = MCE_GEN2_TX_INV },
252 /* Topseed eHome Infrared Transceiver */
253 { USB_DEVICE(VENDOR_TOPSEED, 0x0008),
254 .driver_info = MCE_GEN3 },
255 /* Topseed eHome Infrared Transceiver */
256 { USB_DEVICE(VENDOR_TOPSEED, 0x000a),
257 .driver_info = MCE_GEN2_TX_INV },
258 /* Topseed eHome Infrared Transceiver */
259 { USB_DEVICE(VENDOR_TOPSEED, 0x0011),
260 .driver_info = MCE_GEN2_TX_INV },
261 /* Ricavision internal Infrared Transceiver */
262 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
263 /* Itron ione Libra Q-11 */
264 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
265 /* FIC eHome Infrared Transceiver */
266 { USB_DEVICE(VENDOR_FIC, 0x9242) },
267 /* LG eHome Infrared Transceiver */
268 { USB_DEVICE(VENDOR_LG, 0x9803) },
269 /* Microsoft MCE Infrared Transceiver */
270 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
271 /* Formosa eHome Infrared Transceiver */
272 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
273 /* Formosa21 / eHome Infrared Receiver */
274 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
275 /* Formosa aim / Trust MCE Infrared Receiver */
276 { USB_DEVICE(VENDOR_FORMOSA, 0xe017) },
277 /* Formosa Industrial Computing / Beanbag Emulation Device */
278 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
279 /* Formosa21 / eHome Infrared Receiver */
280 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
281 /* Formosa Industrial Computing AIM IR605/A */
282 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
283 /* Formosa Industrial Computing */
284 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
285 /* Fintek eHome Infrared Transceiver (HP branded) */
286 { USB_DEVICE(VENDOR_FINTEK, 0x5168) },
287 /* Fintek eHome Infrared Transceiver */
288 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
289 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
290 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
291 /* Pinnacle Remote Kit */
292 { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
293 .driver_info = MCE_GEN3 },
294 /* Elitegroup Computer Systems IR */
295 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
296 /* Wistron Corp. eHome Infrared Receiver */
297 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
298 /* Compro K100 */
299 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
300 /* Compro K100 v2 */
301 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
302 /* Northstar Systems, Inc. eHome Infrared Transceiver */
303 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
304 /* TiVo PC IR Receiver */
305 { USB_DEVICE(VENDOR_TIVO, 0x2000) },
306 /* Conexant Hybrid TV "Shelby" Polaris SDK */
307 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
308 .driver_info = POLARIS_EVK },
309 /* Conexant Hybrid TV RDU253S Polaris */
310 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
311 .driver_info = CX_HYBRID_TV },
312 /* Terminating entry */
313 { }
314 };
315
316 /* data structure for each usb transceiver */
317 struct mceusb_dev {
318 /* ir-core bits */
319 struct rc_dev *rc;
320
321 /* optional features we can enable */
322 bool carrier_report_enabled;
323 bool learning_enabled;
324
325 /* core device bits */
326 struct device *dev;
327
328 /* usb */
329 struct usb_device *usbdev;
330 struct urb *urb_in;
331 struct usb_endpoint_descriptor *usb_ep_in;
332 struct usb_endpoint_descriptor *usb_ep_out;
333
334 /* buffers and dma */
335 unsigned char *buf_in;
336 unsigned int len_in;
337 dma_addr_t dma_in;
338 dma_addr_t dma_out;
339
340 enum {
341 CMD_HEADER = 0,
342 SUBCMD,
343 CMD_DATA,
344 PARSE_IRDATA,
345 } parser_state;
346
347 u8 cmd, rem; /* Remaining IR data bytes in packet */
348
349 struct {
350 u32 connected:1;
351 u32 tx_mask_normal:1;
352 u32 microsoft_gen1:1;
353 u32 no_tx:1;
354 } flags;
355
356 /* transmit support */
357 int send_flags;
358 u32 carrier;
359 unsigned char tx_mask;
360
361 char name[128];
362 char phys[64];
363 enum mceusb_model_type model;
364 };
365
366 /*
367 * MCE Device Command Strings
368 * Device command responses vary from device to device...
369 * - DEVICE_RESET resets the hardware to its default state
370 * - GET_REVISION fetches the hardware/software revision, common
371 * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
372 * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
373 * device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
374 * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
375 * ((clk / frequency) - 1)
376 * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
377 * response in the form of 9f 0c msb lsb
378 * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
379 * the form of 9f 08 bm, where bm is the bitmask
380 * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
381 * general use one or short-range learning one, in the form of
382 * 9f 14 ss, where ss is either 01 for long-range or 02 for short
383 * - SET_CARRIER_FREQ sets a new carrier mode and frequency
384 * - SET_TX_BITMASK sets the transmitter bitmask
385 * - SET_RX_TIMEOUT sets the receiver timeout
386 * - SET_RX_SENSOR sets which receiver sensor to use
387 */
388 static char DEVICE_RESET[] = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER,
389 MCE_CMD_DEVICE_RESET};
390 static char GET_REVISION[] = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION};
391 static char GET_UNKNOWN[] = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7};
392 static char GET_UNKNOWN2[] = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2};
393 static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER};
394 static char GET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT};
395 static char GET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK};
396 static char GET_RX_SENSOR[] = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR};
397 /* sub in desired values in lower byte or bytes for full command */
398 /* FIXME: make use of these for transmit.
399 static char SET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER,
400 MCE_CMD_S_CARRIER, 0x00, 0x00};
401 static char SET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00};
402 static char SET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER,
403 MCE_CMD_S_TIMEOUT, 0x00, 0x00};
404 static char SET_RX_SENSOR[] = {MCE_COMMAND_HEADER,
405 MCE_CMD_S_RXSENSOR, 0x00};
406 */
407
408 static int mceusb_cmdsize(u8 cmd, u8 subcmd)
409 {
410 int datasize = 0;
411
412 switch (cmd) {
413 case MCE_COMMAND_NULL:
414 if (subcmd == MCE_HW_CMD_HEADER)
415 datasize = 1;
416 break;
417 case MCE_HW_CMD_HEADER:
418 switch (subcmd) {
419 case MCE_CMD_G_REVISION:
420 datasize = 2;
421 break;
422 }
423 case MCE_COMMAND_HEADER:
424 switch (subcmd) {
425 case MCE_CMD_UNKNOWN:
426 case MCE_CMD_S_CARRIER:
427 case MCE_CMD_S_TIMEOUT:
428 case MCE_RSP_PULSE_COUNT:
429 datasize = 2;
430 break;
431 case MCE_CMD_SIG_END:
432 case MCE_CMD_S_TXMASK:
433 case MCE_CMD_S_RXSENSOR:
434 datasize = 1;
435 break;
436 }
437 }
438 return datasize;
439 }
440
441 static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
442 int offset, int len, bool out)
443 {
444 char codes[USB_BUFLEN * 3 + 1];
445 char inout[9];
446 u8 cmd, subcmd, data1, data2;
447 struct device *dev = ir->dev;
448 int i, start, skip = 0;
449
450 if (!debug)
451 return;
452
453 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
454 if (ir->flags.microsoft_gen1 && !out && !offset)
455 skip = 2;
456
457 if (len <= skip)
458 return;
459
460 for (i = 0; i < len && i < USB_BUFLEN; i++)
461 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff);
462
463 dev_info(dev, "%sx data: %s(length=%d)\n",
464 (out ? "t" : "r"), codes, len);
465
466 if (out)
467 strcpy(inout, "Request\0");
468 else
469 strcpy(inout, "Got\0");
470
471 start = offset + skip;
472 cmd = buf[start] & 0xff;
473 subcmd = buf[start + 1] & 0xff;
474 data1 = buf[start + 2] & 0xff;
475 data2 = buf[start + 3] & 0xff;
476
477 switch (cmd) {
478 case MCE_COMMAND_NULL:
479 if ((subcmd == MCE_HW_CMD_HEADER) &&
480 (data1 == MCE_CMD_DEVICE_RESET))
481 dev_info(dev, "Device reset requested\n");
482 else
483 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
484 cmd, subcmd);
485 break;
486 case MCE_HW_CMD_HEADER:
487 switch (subcmd) {
488 case MCE_CMD_G_REVISION:
489 if (len == 2)
490 dev_info(dev, "Get hw/sw rev?\n");
491 else
492 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
493 "0x%02x 0x%02x\n", data1, data2,
494 buf[start + 4], buf[start + 5]);
495 break;
496 case MCE_CMD_DEVICE_RESET:
497 dev_info(dev, "Device reset requested\n");
498 break;
499 case MCE_RSP_CMD_INVALID:
500 dev_info(dev, "Previous command not supported\n");
501 break;
502 case MCE_CMD_UNKNOWN7:
503 case MCE_CMD_UNKNOWN9:
504 default:
505 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
506 cmd, subcmd);
507 break;
508 }
509 break;
510 case MCE_COMMAND_HEADER:
511 switch (subcmd) {
512 case MCE_CMD_SIG_END:
513 dev_info(dev, "End of signal\n");
514 break;
515 case MCE_CMD_PING:
516 dev_info(dev, "Ping\n");
517 break;
518 case MCE_CMD_UNKNOWN:
519 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
520 data1, data2);
521 break;
522 case MCE_CMD_S_CARRIER:
523 dev_info(dev, "%s carrier mode and freq of "
524 "0x%02x 0x%02x\n", inout, data1, data2);
525 break;
526 case MCE_CMD_G_CARRIER:
527 dev_info(dev, "Get carrier mode and freq\n");
528 break;
529 case MCE_CMD_S_TXMASK:
530 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
531 inout, data1);
532 break;
533 case MCE_CMD_S_TIMEOUT:
534 /* value is in units of 50us, so x*50/100 or x/2 ms */
535 dev_info(dev, "%s receive timeout of %d ms\n",
536 inout, ((data1 << 8) | data2) / 2);
537 break;
538 case MCE_CMD_G_TIMEOUT:
539 dev_info(dev, "Get receive timeout\n");
540 break;
541 case MCE_CMD_G_TXMASK:
542 dev_info(dev, "Get transmit blaster mask\n");
543 break;
544 case MCE_CMD_S_RXSENSOR:
545 dev_info(dev, "%s %s-range receive sensor in use\n",
546 inout, data1 == 0x02 ? "short" : "long");
547 break;
548 case MCE_CMD_G_RXSENSOR:
549 /* aka MCE_RSP_PULSE_COUNT */
550 if (out)
551 dev_info(dev, "Get receive sensor\n");
552 else if (ir->learning_enabled)
553 dev_info(dev, "RX pulse count: %d\n",
554 ((data1 << 8) | data2));
555 break;
556 case MCE_RSP_CMD_INVALID:
557 dev_info(dev, "Error! Hardware is likely wedged...\n");
558 break;
559 case MCE_CMD_UNKNOWN2:
560 case MCE_CMD_UNKNOWN3:
561 case MCE_CMD_UNKNOWN5:
562 default:
563 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
564 cmd, subcmd);
565 break;
566 }
567 break;
568 default:
569 break;
570 }
571
572 if (cmd == MCE_IRDATA_TRAILER)
573 dev_info(dev, "End of raw IR data\n");
574 else if ((cmd != MCE_COMMAND_HEADER) &&
575 ((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA))
576 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
577 }
578
579 static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
580 {
581 struct mceusb_dev *ir;
582 int len;
583
584 if (!urb)
585 return;
586
587 ir = urb->context;
588 if (ir) {
589 len = urb->actual_length;
590
591 dev_dbg(ir->dev, "callback called (status=%d len=%d)\n",
592 urb->status, len);
593
594 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
595 }
596
597 }
598
599 /* request incoming or send outgoing usb packet - used to initialize remote */
600 static void mce_request_packet(struct mceusb_dev *ir,
601 struct usb_endpoint_descriptor *ep,
602 unsigned char *data, int size, int urb_type)
603 {
604 int res;
605 struct urb *async_urb;
606 struct device *dev = ir->dev;
607 unsigned char *async_buf;
608
609 if (urb_type == MCEUSB_TX) {
610 async_urb = usb_alloc_urb(0, GFP_KERNEL);
611 if (unlikely(!async_urb)) {
612 dev_err(dev, "Error, couldn't allocate urb!\n");
613 return;
614 }
615
616 async_buf = kzalloc(size, GFP_KERNEL);
617 if (!async_buf) {
618 dev_err(dev, "Error, couldn't allocate buf!\n");
619 usb_free_urb(async_urb);
620 return;
621 }
622
623 /* outbound data */
624 usb_fill_int_urb(async_urb, ir->usbdev,
625 usb_sndintpipe(ir->usbdev, ep->bEndpointAddress),
626 async_buf, size, (usb_complete_t)mce_async_callback,
627 ir, ep->bInterval);
628 memcpy(async_buf, data, size);
629
630 } else if (urb_type == MCEUSB_RX) {
631 /* standard request */
632 async_urb = ir->urb_in;
633 ir->send_flags = RECV_FLAG_IN_PROGRESS;
634
635 } else {
636 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
637 return;
638 }
639
640 dev_dbg(dev, "receive request called (size=%#x)\n", size);
641
642 async_urb->transfer_buffer_length = size;
643 async_urb->dev = ir->usbdev;
644
645 res = usb_submit_urb(async_urb, GFP_ATOMIC);
646 if (res) {
647 dev_dbg(dev, "receive request FAILED! (res=%d)\n", res);
648 return;
649 }
650 dev_dbg(dev, "receive request complete (res=%d)\n", res);
651 }
652
653 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
654 {
655 mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX);
656 }
657
658 static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size)
659 {
660 mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX);
661 }
662
663 /* Send data out the IR blaster port(s) */
664 static int mceusb_tx_ir(struct rc_dev *dev, int *txbuf, u32 n)
665 {
666 struct mceusb_dev *ir = dev->priv;
667 int i, ret = 0;
668 int count, cmdcount = 0;
669 unsigned char *cmdbuf; /* MCE command buffer */
670 long signal_duration = 0; /* Singnal length in us */
671 struct timeval start_time, end_time;
672
673 do_gettimeofday(&start_time);
674
675 count = n / sizeof(int);
676
677 cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL);
678 if (!cmdbuf)
679 return -ENOMEM;
680
681 /* MCE tx init header */
682 cmdbuf[cmdcount++] = MCE_COMMAND_HEADER;
683 cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK;
684 cmdbuf[cmdcount++] = ir->tx_mask;
685
686 /* Generate mce packet data */
687 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
688 signal_duration += txbuf[i];
689 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
690
691 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
692
693 /* Insert mce packet header every 4th entry */
694 if ((cmdcount < MCE_CMDBUF_SIZE) &&
695 (cmdcount - MCE_TX_HEADER_LENGTH) %
696 MCE_CODE_LENGTH == 0)
697 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
698
699 /* Insert mce packet data */
700 if (cmdcount < MCE_CMDBUF_SIZE)
701 cmdbuf[cmdcount++] =
702 (txbuf[i] < MCE_PULSE_BIT ?
703 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
704 (i & 1 ? 0x00 : MCE_PULSE_BIT);
705 else {
706 ret = -EINVAL;
707 goto out;
708 }
709
710 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
711 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
712 }
713
714 /* Fix packet length in last header */
715 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
716 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) %
717 MCE_CODE_LENGTH - 1;
718
719 /* Check if we have room for the empty packet at the end */
720 if (cmdcount >= MCE_CMDBUF_SIZE) {
721 ret = -EINVAL;
722 goto out;
723 }
724
725 /* All mce commands end with an empty packet (0x80) */
726 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
727
728 /* Transmit the command to the mce device */
729 mce_async_out(ir, cmdbuf, cmdcount);
730
731 /*
732 * The lircd gap calculation expects the write function to
733 * wait the time it takes for the ircommand to be sent before
734 * it returns.
735 */
736 do_gettimeofday(&end_time);
737 signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
738 (end_time.tv_sec - start_time.tv_sec) * 1000000;
739
740 /* delay with the closest number of ticks */
741 set_current_state(TASK_INTERRUPTIBLE);
742 schedule_timeout(usecs_to_jiffies(signal_duration));
743
744 out:
745 kfree(cmdbuf);
746 return ret ? ret : n;
747 }
748
749 /* Sets active IR outputs -- mce devices typically have two */
750 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
751 {
752 struct mceusb_dev *ir = dev->priv;
753
754 if (ir->flags.tx_mask_normal)
755 ir->tx_mask = mask;
756 else
757 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
758 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
759
760 return 0;
761 }
762
763 /* Sets the send carrier frequency and mode */
764 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
765 {
766 struct mceusb_dev *ir = dev->priv;
767 int clk = 10000000;
768 int prescaler = 0, divisor = 0;
769 unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER,
770 MCE_CMD_S_CARRIER, 0x00, 0x00 };
771
772 /* Carrier has changed */
773 if (ir->carrier != carrier) {
774
775 if (carrier == 0) {
776 ir->carrier = carrier;
777 cmdbuf[2] = MCE_CMD_SIG_END;
778 cmdbuf[3] = MCE_IRDATA_TRAILER;
779 dev_dbg(ir->dev, "%s: disabling carrier "
780 "modulation\n", __func__);
781 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
782 return carrier;
783 }
784
785 for (prescaler = 0; prescaler < 4; ++prescaler) {
786 divisor = (clk >> (2 * prescaler)) / carrier;
787 if (divisor <= 0xff) {
788 ir->carrier = carrier;
789 cmdbuf[2] = prescaler;
790 cmdbuf[3] = divisor;
791 dev_dbg(ir->dev, "%s: requesting %u HZ "
792 "carrier\n", __func__, carrier);
793
794 /* Transmit new carrier to mce device */
795 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
796 return carrier;
797 }
798 }
799
800 return -EINVAL;
801
802 }
803
804 return carrier;
805 }
806
807 /*
808 * We don't do anything but print debug spew for many of the command bits
809 * we receive from the hardware, but some of them are useful information
810 * we want to store so that we can use them.
811 */
812 static void mceusb_handle_command(struct mceusb_dev *ir, int index)
813 {
814 u8 hi = ir->buf_in[index + 1] & 0xff;
815 u8 lo = ir->buf_in[index + 2] & 0xff;
816
817 switch (ir->buf_in[index]) {
818 /* 2-byte return value commands */
819 case MCE_CMD_S_TIMEOUT:
820 ir->rc->timeout = MS_TO_NS((hi << 8 | lo) / 2);
821 break;
822
823 /* 1-byte return value commands */
824 case MCE_CMD_S_TXMASK:
825 ir->tx_mask = hi;
826 break;
827 case MCE_CMD_S_RXSENSOR:
828 ir->learning_enabled = (hi == 0x02);
829 break;
830 default:
831 break;
832 }
833 }
834
835 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
836 {
837 DEFINE_IR_RAW_EVENT(rawir);
838 int i = 0;
839
840 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
841 if (ir->flags.microsoft_gen1)
842 i = 2;
843
844 /* if there's no data, just return now */
845 if (buf_len <= i)
846 return;
847
848 for (; i < buf_len; i++) {
849 switch (ir->parser_state) {
850 case SUBCMD:
851 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
852 mceusb_dev_printdata(ir, ir->buf_in, i - 1,
853 ir->rem + 2, false);
854 mceusb_handle_command(ir, i);
855 ir->parser_state = CMD_DATA;
856 break;
857 case PARSE_IRDATA:
858 ir->rem--;
859 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
860 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
861 * MS_TO_NS(MCE_TIME_UNIT);
862
863 dev_dbg(ir->dev, "Storing %s with duration %d\n",
864 rawir.pulse ? "pulse" : "space",
865 rawir.duration);
866
867 ir_raw_event_store_with_filter(ir->rc, &rawir);
868 break;
869 case CMD_DATA:
870 ir->rem--;
871 break;
872 case CMD_HEADER:
873 /* decode mce packets of the form (84),AA,BB,CC,DD */
874 /* IR data packets can span USB messages - rem */
875 ir->cmd = ir->buf_in[i];
876 if ((ir->cmd == MCE_COMMAND_HEADER) ||
877 ((ir->cmd & MCE_COMMAND_MASK) !=
878 MCE_COMMAND_IRDATA)) {
879 ir->parser_state = SUBCMD;
880 continue;
881 }
882 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
883 mceusb_dev_printdata(ir, ir->buf_in,
884 i, ir->rem + 1, false);
885 if (ir->rem)
886 ir->parser_state = PARSE_IRDATA;
887 break;
888 }
889
890 if (ir->parser_state != CMD_HEADER && !ir->rem)
891 ir->parser_state = CMD_HEADER;
892 }
893 dev_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
894 ir_raw_event_handle(ir->rc);
895 }
896
897 static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
898 {
899 struct mceusb_dev *ir;
900 int buf_len;
901
902 if (!urb)
903 return;
904
905 ir = urb->context;
906 if (!ir) {
907 usb_unlink_urb(urb);
908 return;
909 }
910
911 buf_len = urb->actual_length;
912
913 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
914 ir->send_flags = SEND_FLAG_COMPLETE;
915 dev_dbg(ir->dev, "setup answer received %d bytes\n",
916 buf_len);
917 }
918
919 switch (urb->status) {
920 /* success */
921 case 0:
922 mceusb_process_ir_data(ir, buf_len);
923 break;
924
925 case -ECONNRESET:
926 case -ENOENT:
927 case -ESHUTDOWN:
928 usb_unlink_urb(urb);
929 return;
930
931 case -EPIPE:
932 default:
933 dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
934 break;
935 }
936
937 usb_submit_urb(urb, GFP_ATOMIC);
938 }
939
940 static void mceusb_gen1_init(struct mceusb_dev *ir)
941 {
942 int ret;
943 int maxp = ir->len_in;
944 struct device *dev = ir->dev;
945 char *data;
946
947 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
948 if (!data) {
949 dev_err(dev, "%s: memory allocation failed!\n", __func__);
950 return;
951 }
952
953 /*
954 * This is a strange one. Windows issues a set address to the device
955 * on the receive control pipe and expect a certain value pair back
956 */
957 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
958 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
959 data, USB_CTRL_MSG_SZ, HZ * 3);
960 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
961 dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
962 __func__, data[0], data[1]);
963
964 /* set feature: bit rate 38400 bps */
965 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
966 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
967 0xc04e, 0x0000, NULL, 0, HZ * 3);
968
969 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
970
971 /* bRequest 4: set char length to 8 bits */
972 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
973 4, USB_TYPE_VENDOR,
974 0x0808, 0x0000, NULL, 0, HZ * 3);
975 dev_dbg(dev, "%s - retB = %d\n", __func__, ret);
976
977 /* bRequest 2: set handshaking to use DTR/DSR */
978 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
979 2, USB_TYPE_VENDOR,
980 0x0000, 0x0100, NULL, 0, HZ * 3);
981 dev_dbg(dev, "%s - retC = %d\n", __func__, ret);
982
983 /* device reset */
984 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
985 mce_sync_in(ir, NULL, maxp);
986
987 /* get hw/sw revision? */
988 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
989 mce_sync_in(ir, NULL, maxp);
990
991 kfree(data);
992 };
993
994 static void mceusb_gen2_init(struct mceusb_dev *ir)
995 {
996 int maxp = ir->len_in;
997
998 /* device reset */
999 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
1000 mce_sync_in(ir, NULL, maxp);
1001
1002 /* get hw/sw revision? */
1003 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1004 mce_sync_in(ir, NULL, maxp);
1005
1006 /* unknown what the next two actually return... */
1007 mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
1008 mce_sync_in(ir, NULL, maxp);
1009 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
1010 mce_sync_in(ir, NULL, maxp);
1011 }
1012
1013 static void mceusb_get_parameters(struct mceusb_dev *ir)
1014 {
1015 int maxp = ir->len_in;
1016
1017 /* get the carrier and frequency */
1018 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
1019 mce_sync_in(ir, NULL, maxp);
1020
1021 if (!ir->flags.no_tx) {
1022 /* get the transmitter bitmask */
1023 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
1024 mce_sync_in(ir, NULL, maxp);
1025 }
1026
1027 /* get receiver timeout value */
1028 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
1029 mce_sync_in(ir, NULL, maxp);
1030
1031 /* get receiver sensor setting */
1032 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
1033 mce_sync_in(ir, NULL, maxp);
1034 }
1035
1036 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
1037 {
1038 struct device *dev = ir->dev;
1039 struct rc_dev *rc;
1040 int ret;
1041
1042 rc = rc_allocate_device();
1043 if (!rc) {
1044 dev_err(dev, "remote dev allocation failed\n");
1045 goto out;
1046 }
1047
1048 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
1049 mceusb_model[ir->model].name ?
1050 mceusb_model[ir->model].name :
1051 "Media Center Ed. eHome Infrared Remote Transceiver",
1052 le16_to_cpu(ir->usbdev->descriptor.idVendor),
1053 le16_to_cpu(ir->usbdev->descriptor.idProduct));
1054
1055 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
1056
1057 rc->input_name = ir->name;
1058 rc->input_phys = ir->phys;
1059 usb_to_input_id(ir->usbdev, &rc->input_id);
1060 rc->dev.parent = dev;
1061 rc->priv = ir;
1062 rc->driver_type = RC_DRIVER_IR_RAW;
1063 rc->allowed_protos = IR_TYPE_ALL;
1064 rc->timeout = MS_TO_NS(1000);
1065 if (!ir->flags.no_tx) {
1066 rc->s_tx_mask = mceusb_set_tx_mask;
1067 rc->s_tx_carrier = mceusb_set_tx_carrier;
1068 rc->tx_ir = mceusb_tx_ir;
1069 }
1070 rc->driver_name = DRIVER_NAME;
1071 rc->map_name = mceusb_model[ir->model].rc_map ?
1072 mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE;
1073
1074 ret = rc_register_device(rc);
1075 if (ret < 0) {
1076 dev_err(dev, "remote dev registration failed\n");
1077 goto out;
1078 }
1079
1080 return rc;
1081
1082 out:
1083 rc_free_device(rc);
1084 return NULL;
1085 }
1086
1087 static int __devinit mceusb_dev_probe(struct usb_interface *intf,
1088 const struct usb_device_id *id)
1089 {
1090 struct usb_device *dev = interface_to_usbdev(intf);
1091 struct usb_host_interface *idesc;
1092 struct usb_endpoint_descriptor *ep = NULL;
1093 struct usb_endpoint_descriptor *ep_in = NULL;
1094 struct usb_endpoint_descriptor *ep_out = NULL;
1095 struct mceusb_dev *ir = NULL;
1096 int pipe, maxp, i;
1097 char buf[63], name[128] = "";
1098 enum mceusb_model_type model = id->driver_info;
1099 bool is_gen3;
1100 bool is_microsoft_gen1;
1101 bool tx_mask_normal;
1102 bool is_polaris;
1103
1104 dev_dbg(&intf->dev, "%s called\n", __func__);
1105
1106 idesc = intf->cur_altsetting;
1107
1108 is_gen3 = mceusb_model[model].mce_gen3;
1109 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1110 tx_mask_normal = mceusb_model[model].tx_mask_normal;
1111 is_polaris = mceusb_model[model].is_polaris;
1112
1113 if (is_polaris) {
1114 /* Interface 0 is IR */
1115 if (idesc->desc.bInterfaceNumber)
1116 return -ENODEV;
1117 }
1118
1119 /* step through the endpoints to find first bulk in and out endpoint */
1120 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1121 ep = &idesc->endpoint[i].desc;
1122
1123 if ((ep_in == NULL)
1124 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1125 == USB_DIR_IN)
1126 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1127 == USB_ENDPOINT_XFER_BULK)
1128 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1129 == USB_ENDPOINT_XFER_INT))) {
1130
1131 ep_in = ep;
1132 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
1133 ep_in->bInterval = 1;
1134 dev_dbg(&intf->dev, "acceptable inbound endpoint "
1135 "found\n");
1136 }
1137
1138 if ((ep_out == NULL)
1139 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1140 == USB_DIR_OUT)
1141 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1142 == USB_ENDPOINT_XFER_BULK)
1143 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1144 == USB_ENDPOINT_XFER_INT))) {
1145
1146 ep_out = ep;
1147 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
1148 ep_out->bInterval = 1;
1149 dev_dbg(&intf->dev, "acceptable outbound endpoint "
1150 "found\n");
1151 }
1152 }
1153 if (ep_in == NULL) {
1154 dev_dbg(&intf->dev, "inbound and/or endpoint not found\n");
1155 return -ENODEV;
1156 }
1157
1158 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1159 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1160
1161 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1162 if (!ir)
1163 goto mem_alloc_fail;
1164
1165 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1166 if (!ir->buf_in)
1167 goto buf_in_alloc_fail;
1168
1169 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1170 if (!ir->urb_in)
1171 goto urb_in_alloc_fail;
1172
1173 ir->usbdev = dev;
1174 ir->dev = &intf->dev;
1175 ir->len_in = maxp;
1176 ir->flags.microsoft_gen1 = is_microsoft_gen1;
1177 ir->flags.tx_mask_normal = tx_mask_normal;
1178 ir->flags.no_tx = mceusb_model[model].no_tx;
1179 ir->model = model;
1180
1181 /* Saving usb interface data for use by the transmitter routine */
1182 ir->usb_ep_in = ep_in;
1183 ir->usb_ep_out = ep_out;
1184
1185 if (dev->descriptor.iManufacturer
1186 && usb_string(dev, dev->descriptor.iManufacturer,
1187 buf, sizeof(buf)) > 0)
1188 strlcpy(name, buf, sizeof(name));
1189 if (dev->descriptor.iProduct
1190 && usb_string(dev, dev->descriptor.iProduct,
1191 buf, sizeof(buf)) > 0)
1192 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1193 " %s", buf);
1194
1195 ir->rc = mceusb_init_rc_dev(ir);
1196 if (!ir->rc)
1197 goto rc_dev_fail;
1198
1199 /* flush buffers on the device */
1200 mce_sync_in(ir, NULL, maxp);
1201 mce_sync_in(ir, NULL, maxp);
1202
1203 /* wire up inbound data handler */
1204 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
1205 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
1206 ir->urb_in->transfer_dma = ir->dma_in;
1207 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1208
1209 /* initialize device */
1210 if (ir->flags.microsoft_gen1)
1211 mceusb_gen1_init(ir);
1212 else if (!is_gen3)
1213 mceusb_gen2_init(ir);
1214
1215 mceusb_get_parameters(ir);
1216
1217 if (!ir->flags.no_tx)
1218 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
1219
1220 usb_set_intfdata(intf, ir);
1221
1222 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
1223 dev->bus->busnum, dev->devnum);
1224
1225 return 0;
1226
1227 /* Error-handling path */
1228 rc_dev_fail:
1229 usb_free_urb(ir->urb_in);
1230 urb_in_alloc_fail:
1231 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1232 buf_in_alloc_fail:
1233 kfree(ir);
1234 mem_alloc_fail:
1235 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1236
1237 return -ENOMEM;
1238 }
1239
1240
1241 static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1242 {
1243 struct usb_device *dev = interface_to_usbdev(intf);
1244 struct mceusb_dev *ir = usb_get_intfdata(intf);
1245
1246 usb_set_intfdata(intf, NULL);
1247
1248 if (!ir)
1249 return;
1250
1251 ir->usbdev = NULL;
1252 rc_unregister_device(ir->rc);
1253 usb_kill_urb(ir->urb_in);
1254 usb_free_urb(ir->urb_in);
1255 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1256
1257 kfree(ir);
1258 }
1259
1260 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1261 {
1262 struct mceusb_dev *ir = usb_get_intfdata(intf);
1263 dev_info(ir->dev, "suspend\n");
1264 usb_kill_urb(ir->urb_in);
1265 return 0;
1266 }
1267
1268 static int mceusb_dev_resume(struct usb_interface *intf)
1269 {
1270 struct mceusb_dev *ir = usb_get_intfdata(intf);
1271 dev_info(ir->dev, "resume\n");
1272 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1273 return -EIO;
1274 return 0;
1275 }
1276
1277 static struct usb_driver mceusb_dev_driver = {
1278 .name = DRIVER_NAME,
1279 .probe = mceusb_dev_probe,
1280 .disconnect = mceusb_dev_disconnect,
1281 .suspend = mceusb_dev_suspend,
1282 .resume = mceusb_dev_resume,
1283 .reset_resume = mceusb_dev_resume,
1284 .id_table = mceusb_dev_table
1285 };
1286
1287 static int __init mceusb_dev_init(void)
1288 {
1289 int ret;
1290
1291 ret = usb_register(&mceusb_dev_driver);
1292 if (ret < 0)
1293 printk(KERN_ERR DRIVER_NAME
1294 ": usb register failed, result = %d\n", ret);
1295
1296 return ret;
1297 }
1298
1299 static void __exit mceusb_dev_exit(void)
1300 {
1301 usb_deregister(&mceusb_dev_driver);
1302 }
1303
1304 module_init(mceusb_dev_init);
1305 module_exit(mceusb_dev_exit);
1306
1307 MODULE_DESCRIPTION(DRIVER_DESC);
1308 MODULE_AUTHOR(DRIVER_AUTHOR);
1309 MODULE_LICENSE("GPL");
1310 MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1311
1312 module_param(debug, bool, S_IRUGO | S_IWUSR);
1313 MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux kernel - Deliverables
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