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[deliverable/linux.git] / drivers / media / IR / 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/input.h>
40 #include <media/ir-core.h>
41 #include <media/ir-common.h>
42
43 #define DRIVER_VERSION "1.91"
44 #define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>"
45 #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
46 "device driver"
47 #define DRIVER_NAME "mceusb"
48
49 #define USB_BUFLEN 32 /* USB reception buffer length */
50 #define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */
51 #define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */
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_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_inverted: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_inverted = 1,
169 },
170 [MCE_GEN2] = {
171 .mce_gen2 = 1,
172 },
173 [MCE_GEN2_TX_INV] = {
174 .mce_gen2 = 1,
175 .tx_mask_inverted = 1,
176 },
177 [MCE_GEN3] = {
178 .mce_gen3 = 1,
179 .tx_mask_inverted = 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 */
285 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
286 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
287 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
288 /* Pinnacle Remote Kit */
289 { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
290 .driver_info = MCE_GEN3 },
291 /* Elitegroup Computer Systems IR */
292 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
293 /* Wistron Corp. eHome Infrared Receiver */
294 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
295 /* Compro K100 */
296 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
297 /* Compro K100 v2 */
298 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
299 /* Northstar Systems, Inc. eHome Infrared Transceiver */
300 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
301 /* TiVo PC IR Receiver */
302 { USB_DEVICE(VENDOR_TIVO, 0x2000) },
303 /* Conexant Hybrid TV "Shelby" Polaris SDK */
304 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
305 .driver_info = POLARIS_EVK },
306 /* Conexant Hybrid TV RDU253S Polaris */
307 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
308 .driver_info = CX_HYBRID_TV },
309 /* Terminating entry */
310 { }
311 };
312
313 /* data structure for each usb transceiver */
314 struct mceusb_dev {
315 /* ir-core bits */
316 struct ir_dev_props *props;
317 struct ir_raw_event rawir;
318
319 /* core device bits */
320 struct device *dev;
321 struct input_dev *idev;
322
323 /* usb */
324 struct usb_device *usbdev;
325 struct urb *urb_in;
326 struct usb_endpoint_descriptor *usb_ep_in;
327 struct usb_endpoint_descriptor *usb_ep_out;
328
329 /* buffers and dma */
330 unsigned char *buf_in;
331 unsigned int len_in;
332
333 enum {
334 CMD_HEADER = 0,
335 SUBCMD,
336 CMD_DATA,
337 PARSE_IRDATA,
338 } parser_state;
339 u8 cmd, rem; /* Remaining IR data bytes in packet */
340
341 dma_addr_t dma_in;
342 dma_addr_t dma_out;
343
344 struct {
345 u32 connected:1;
346 u32 tx_mask_inverted:1;
347 u32 microsoft_gen1:1;
348 u32 no_tx:1;
349 } flags;
350
351 /* transmit support */
352 int send_flags;
353 u32 carrier;
354 unsigned char tx_mask;
355
356 char name[128];
357 char phys[64];
358 enum mceusb_model_type model;
359 };
360
361 /*
362 * MCE Device Command Strings
363 * Device command responses vary from device to device...
364 * - DEVICE_RESET resets the hardware to its default state
365 * - GET_REVISION fetches the hardware/software revision, common
366 * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
367 * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
368 * device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
369 * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
370 * ((clk / frequency) - 1)
371 * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
372 * response in the form of 9f 0c msb lsb
373 * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
374 * the form of 9f 08 bm, where bm is the bitmask
375 * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
376 * general use one or short-range learning one, in the form of
377 * 9f 14 ss, where ss is either 01 for long-range or 02 for short
378 * - SET_CARRIER_FREQ sets a new carrier mode and frequency
379 * - SET_TX_BITMASK sets the transmitter bitmask
380 * - SET_RX_TIMEOUT sets the receiver timeout
381 * - SET_RX_SENSOR sets which receiver sensor to use
382 */
383 static char DEVICE_RESET[] = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER,
384 MCE_CMD_DEVICE_RESET};
385 static char GET_REVISION[] = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION};
386 static char GET_UNKNOWN[] = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7};
387 static char GET_UNKNOWN2[] = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2};
388 static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER};
389 static char GET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT};
390 static char GET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK};
391 static char GET_RX_SENSOR[] = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR};
392 /* sub in desired values in lower byte or bytes for full command */
393 /* FIXME: make use of these for transmit.
394 static char SET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER,
395 MCE_CMD_S_CARRIER, 0x00, 0x00};
396 static char SET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00};
397 static char SET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER,
398 MCE_CMD_S_TIMEOUT, 0x00, 0x00};
399 static char SET_RX_SENSOR[] = {MCE_COMMAND_HEADER,
400 MCE_CMD_S_RXSENSOR, 0x00};
401 */
402
403 static int mceusb_cmdsize(u8 cmd, u8 subcmd)
404 {
405 int datasize = 0;
406
407 switch (cmd) {
408 case MCE_COMMAND_NULL:
409 if (subcmd == MCE_HW_CMD_HEADER)
410 datasize = 1;
411 break;
412 case MCE_HW_CMD_HEADER:
413 switch (subcmd) {
414 case MCE_CMD_G_REVISION:
415 datasize = 2;
416 break;
417 }
418 case MCE_COMMAND_HEADER:
419 switch (subcmd) {
420 case MCE_CMD_UNKNOWN:
421 case MCE_CMD_S_CARRIER:
422 case MCE_CMD_S_TIMEOUT:
423 case MCE_CMD_G_RXSENSOR:
424 datasize = 2;
425 break;
426 case MCE_CMD_SIG_END:
427 case MCE_CMD_S_TXMASK:
428 case MCE_CMD_S_RXSENSOR:
429 datasize = 1;
430 break;
431 }
432 }
433 return datasize;
434 }
435
436 static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
437 int offset, int len, bool out)
438 {
439 char codes[USB_BUFLEN * 3 + 1];
440 char inout[9];
441 u8 cmd, subcmd, data1, data2;
442 struct device *dev = ir->dev;
443 int i, start, skip = 0;
444
445 if (!debug)
446 return;
447
448 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
449 if (ir->flags.microsoft_gen1 && !out && !offset)
450 skip = 2;
451
452 if (len <= skip)
453 return;
454
455 for (i = 0; i < len && i < USB_BUFLEN; i++)
456 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff);
457
458 dev_info(dev, "%sx data: %s(length=%d)\n",
459 (out ? "t" : "r"), codes, len);
460
461 if (out)
462 strcpy(inout, "Request\0");
463 else
464 strcpy(inout, "Got\0");
465
466 start = offset + skip;
467 cmd = buf[start] & 0xff;
468 subcmd = buf[start + 1] & 0xff;
469 data1 = buf[start + 2] & 0xff;
470 data2 = buf[start + 3] & 0xff;
471
472 switch (cmd) {
473 case MCE_COMMAND_NULL:
474 if ((subcmd == MCE_HW_CMD_HEADER) &&
475 (data1 == MCE_CMD_DEVICE_RESET))
476 dev_info(dev, "Device reset requested\n");
477 else
478 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
479 cmd, subcmd);
480 break;
481 case MCE_HW_CMD_HEADER:
482 switch (subcmd) {
483 case MCE_CMD_G_REVISION:
484 if (len == 2)
485 dev_info(dev, "Get hw/sw rev?\n");
486 else
487 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
488 "0x%02x 0x%02x\n", data1, data2,
489 buf[start + 4], buf[start + 5]);
490 break;
491 case MCE_CMD_DEVICE_RESET:
492 dev_info(dev, "Device reset requested\n");
493 break;
494 case MCE_RSP_CMD_INVALID:
495 dev_info(dev, "Previous command not supported\n");
496 break;
497 case MCE_CMD_UNKNOWN7:
498 case MCE_CMD_UNKNOWN9:
499 default:
500 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
501 cmd, subcmd);
502 break;
503 }
504 break;
505 case MCE_COMMAND_HEADER:
506 switch (subcmd) {
507 case MCE_CMD_SIG_END:
508 dev_info(dev, "End of signal\n");
509 break;
510 case MCE_CMD_PING:
511 dev_info(dev, "Ping\n");
512 break;
513 case MCE_CMD_UNKNOWN:
514 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
515 data1, data2);
516 break;
517 case MCE_CMD_S_CARRIER:
518 dev_info(dev, "%s carrier mode and freq of "
519 "0x%02x 0x%02x\n", inout, data1, data2);
520 break;
521 case MCE_CMD_G_CARRIER:
522 dev_info(dev, "Get carrier mode and freq\n");
523 break;
524 case MCE_CMD_S_TXMASK:
525 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
526 inout, data1);
527 break;
528 case MCE_CMD_S_TIMEOUT:
529 /* value is in units of 50us, so x*50/100 or x/2 ms */
530 dev_info(dev, "%s receive timeout of %d ms\n",
531 inout, ((data1 << 8) | data2) / 2);
532 break;
533 case MCE_CMD_G_TIMEOUT:
534 dev_info(dev, "Get receive timeout\n");
535 break;
536 case MCE_CMD_G_TXMASK:
537 dev_info(dev, "Get transmit blaster mask\n");
538 break;
539 case MCE_CMD_S_RXSENSOR:
540 dev_info(dev, "%s %s-range receive sensor in use\n",
541 inout, data1 == 0x02 ? "short" : "long");
542 break;
543 case MCE_CMD_G_RXSENSOR:
544 if (len == 2)
545 dev_info(dev, "Get receive sensor\n");
546 else
547 dev_info(dev, "Remaining pulse count is %d\n",
548 ((data1 << 8) | data2));
549 break;
550 case MCE_RSP_CMD_INVALID:
551 dev_info(dev, "Error! Hardware is likely wedged...\n");
552 break;
553 case MCE_CMD_UNKNOWN2:
554 case MCE_CMD_UNKNOWN3:
555 case MCE_CMD_UNKNOWN5:
556 default:
557 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
558 cmd, subcmd);
559 break;
560 }
561 break;
562 default:
563 break;
564 }
565
566 if (cmd == MCE_IRDATA_TRAILER)
567 dev_info(dev, "End of raw IR data\n");
568 else if ((cmd != MCE_COMMAND_HEADER) &&
569 ((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA))
570 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
571 }
572
573 static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
574 {
575 struct mceusb_dev *ir;
576 int len;
577
578 if (!urb)
579 return;
580
581 ir = urb->context;
582 if (ir) {
583 len = urb->actual_length;
584
585 dev_dbg(ir->dev, "callback called (status=%d len=%d)\n",
586 urb->status, len);
587
588 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
589 }
590
591 }
592
593 /* request incoming or send outgoing usb packet - used to initialize remote */
594 static void mce_request_packet(struct mceusb_dev *ir,
595 struct usb_endpoint_descriptor *ep,
596 unsigned char *data, int size, int urb_type)
597 {
598 int res;
599 struct urb *async_urb;
600 struct device *dev = ir->dev;
601 unsigned char *async_buf;
602
603 if (urb_type == MCEUSB_TX) {
604 async_urb = usb_alloc_urb(0, GFP_KERNEL);
605 if (unlikely(!async_urb)) {
606 dev_err(dev, "Error, couldn't allocate urb!\n");
607 return;
608 }
609
610 async_buf = kzalloc(size, GFP_KERNEL);
611 if (!async_buf) {
612 dev_err(dev, "Error, couldn't allocate buf!\n");
613 usb_free_urb(async_urb);
614 return;
615 }
616
617 /* outbound data */
618 usb_fill_int_urb(async_urb, ir->usbdev,
619 usb_sndintpipe(ir->usbdev, ep->bEndpointAddress),
620 async_buf, size, (usb_complete_t)mce_async_callback,
621 ir, ep->bInterval);
622 memcpy(async_buf, data, size);
623
624 } else if (urb_type == MCEUSB_RX) {
625 /* standard request */
626 async_urb = ir->urb_in;
627 ir->send_flags = RECV_FLAG_IN_PROGRESS;
628
629 } else {
630 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
631 return;
632 }
633
634 dev_dbg(dev, "receive request called (size=%#x)\n", size);
635
636 async_urb->transfer_buffer_length = size;
637 async_urb->dev = ir->usbdev;
638
639 res = usb_submit_urb(async_urb, GFP_ATOMIC);
640 if (res) {
641 dev_dbg(dev, "receive request FAILED! (res=%d)\n", res);
642 return;
643 }
644 dev_dbg(dev, "receive request complete (res=%d)\n", res);
645 }
646
647 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
648 {
649 mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX);
650 }
651
652 static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size)
653 {
654 mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX);
655 }
656
657 /* Send data out the IR blaster port(s) */
658 static int mceusb_tx_ir(void *priv, int *txbuf, u32 n)
659 {
660 struct mceusb_dev *ir = priv;
661 int i, ret = 0;
662 int count, cmdcount = 0;
663 unsigned char *cmdbuf; /* MCE command buffer */
664 long signal_duration = 0; /* Singnal length in us */
665 struct timeval start_time, end_time;
666
667 do_gettimeofday(&start_time);
668
669 count = n / sizeof(int);
670
671 cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL);
672 if (!cmdbuf)
673 return -ENOMEM;
674
675 /* MCE tx init header */
676 cmdbuf[cmdcount++] = MCE_COMMAND_HEADER;
677 cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK;
678 cmdbuf[cmdcount++] = ir->tx_mask;
679
680 /* Generate mce packet data */
681 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
682 signal_duration += txbuf[i];
683 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
684
685 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
686
687 /* Insert mce packet header every 4th entry */
688 if ((cmdcount < MCE_CMDBUF_SIZE) &&
689 (cmdcount - MCE_TX_HEADER_LENGTH) %
690 MCE_CODE_LENGTH == 0)
691 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
692
693 /* Insert mce packet data */
694 if (cmdcount < MCE_CMDBUF_SIZE)
695 cmdbuf[cmdcount++] =
696 (txbuf[i] < MCE_PULSE_BIT ?
697 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
698 (i & 1 ? 0x00 : MCE_PULSE_BIT);
699 else {
700 ret = -EINVAL;
701 goto out;
702 }
703
704 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
705 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
706 }
707
708 /* Fix packet length in last header */
709 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
710 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) %
711 MCE_CODE_LENGTH - 1;
712
713 /* Check if we have room for the empty packet at the end */
714 if (cmdcount >= MCE_CMDBUF_SIZE) {
715 ret = -EINVAL;
716 goto out;
717 }
718
719 /* All mce commands end with an empty packet (0x80) */
720 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
721
722 /* Transmit the command to the mce device */
723 mce_async_out(ir, cmdbuf, cmdcount);
724
725 /*
726 * The lircd gap calculation expects the write function to
727 * wait the time it takes for the ircommand to be sent before
728 * it returns.
729 */
730 do_gettimeofday(&end_time);
731 signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
732 (end_time.tv_sec - start_time.tv_sec) * 1000000;
733
734 /* delay with the closest number of ticks */
735 set_current_state(TASK_INTERRUPTIBLE);
736 schedule_timeout(usecs_to_jiffies(signal_duration));
737
738 out:
739 kfree(cmdbuf);
740 return ret ? ret : n;
741 }
742
743 /* Sets active IR outputs -- mce devices typically have two */
744 static int mceusb_set_tx_mask(void *priv, u32 mask)
745 {
746 struct mceusb_dev *ir = priv;
747
748 if (ir->flags.tx_mask_inverted)
749 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
750 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
751 else
752 ir->tx_mask = mask;
753
754 return 0;
755 }
756
757 /* Sets the send carrier frequency and mode */
758 static int mceusb_set_tx_carrier(void *priv, u32 carrier)
759 {
760 struct mceusb_dev *ir = priv;
761 int clk = 10000000;
762 int prescaler = 0, divisor = 0;
763 unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER,
764 MCE_CMD_S_CARRIER, 0x00, 0x00 };
765
766 /* Carrier has changed */
767 if (ir->carrier != carrier) {
768
769 if (carrier == 0) {
770 ir->carrier = carrier;
771 cmdbuf[2] = MCE_CMD_SIG_END;
772 cmdbuf[3] = MCE_IRDATA_TRAILER;
773 dev_dbg(ir->dev, "%s: disabling carrier "
774 "modulation\n", __func__);
775 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
776 return carrier;
777 }
778
779 for (prescaler = 0; prescaler < 4; ++prescaler) {
780 divisor = (clk >> (2 * prescaler)) / carrier;
781 if (divisor <= 0xff) {
782 ir->carrier = carrier;
783 cmdbuf[2] = prescaler;
784 cmdbuf[3] = divisor;
785 dev_dbg(ir->dev, "%s: requesting %u HZ "
786 "carrier\n", __func__, carrier);
787
788 /* Transmit new carrier to mce device */
789 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
790 return carrier;
791 }
792 }
793
794 return -EINVAL;
795
796 }
797
798 return carrier;
799 }
800
801 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
802 {
803 DEFINE_IR_RAW_EVENT(rawir);
804 int i = 0;
805
806 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
807 if (ir->flags.microsoft_gen1)
808 i = 2;
809
810 /* if there's no data, just return now */
811 if (buf_len <= i)
812 return;
813
814 for (; i < buf_len; i++) {
815 switch (ir->parser_state) {
816 case SUBCMD:
817 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
818 mceusb_dev_printdata(ir, ir->buf_in, i - 1,
819 ir->rem + 2, false);
820 ir->parser_state = CMD_DATA;
821 break;
822 case PARSE_IRDATA:
823 ir->rem--;
824 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
825 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
826 * MCE_TIME_UNIT * 1000;
827
828 dev_dbg(ir->dev, "Storing %s with duration %d\n",
829 rawir.pulse ? "pulse" : "space",
830 rawir.duration);
831
832 ir_raw_event_store_with_filter(ir->idev, &rawir);
833 break;
834 case CMD_DATA:
835 ir->rem--;
836 break;
837 case CMD_HEADER:
838 /* decode mce packets of the form (84),AA,BB,CC,DD */
839 /* IR data packets can span USB messages - rem */
840 ir->cmd = ir->buf_in[i];
841 if ((ir->cmd == MCE_COMMAND_HEADER) ||
842 ((ir->cmd & MCE_COMMAND_MASK) !=
843 MCE_COMMAND_IRDATA)) {
844 ir->parser_state = SUBCMD;
845 continue;
846 }
847 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
848 mceusb_dev_printdata(ir, ir->buf_in, i, ir->rem + 1, false);
849 if (ir->rem)
850 ir->parser_state = PARSE_IRDATA;
851 break;
852 }
853
854 if (ir->parser_state != CMD_HEADER && !ir->rem)
855 ir->parser_state = CMD_HEADER;
856 }
857 dev_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
858 ir_raw_event_handle(ir->idev);
859 }
860
861 static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
862 {
863 struct mceusb_dev *ir;
864 int buf_len;
865
866 if (!urb)
867 return;
868
869 ir = urb->context;
870 if (!ir) {
871 usb_unlink_urb(urb);
872 return;
873 }
874
875 buf_len = urb->actual_length;
876
877 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
878 ir->send_flags = SEND_FLAG_COMPLETE;
879 dev_dbg(ir->dev, "setup answer received %d bytes\n",
880 buf_len);
881 }
882
883 switch (urb->status) {
884 /* success */
885 case 0:
886 mceusb_process_ir_data(ir, buf_len);
887 break;
888
889 case -ECONNRESET:
890 case -ENOENT:
891 case -ESHUTDOWN:
892 usb_unlink_urb(urb);
893 return;
894
895 case -EPIPE:
896 default:
897 dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
898 break;
899 }
900
901 usb_submit_urb(urb, GFP_ATOMIC);
902 }
903
904 static void mceusb_gen1_init(struct mceusb_dev *ir)
905 {
906 int ret;
907 int maxp = ir->len_in;
908 struct device *dev = ir->dev;
909 char *data;
910
911 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
912 if (!data) {
913 dev_err(dev, "%s: memory allocation failed!\n", __func__);
914 return;
915 }
916
917 /*
918 * This is a strange one. Windows issues a set address to the device
919 * on the receive control pipe and expect a certain value pair back
920 */
921 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
922 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
923 data, USB_CTRL_MSG_SZ, HZ * 3);
924 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
925 dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
926 __func__, data[0], data[1]);
927
928 /* set feature: bit rate 38400 bps */
929 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
930 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
931 0xc04e, 0x0000, NULL, 0, HZ * 3);
932
933 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
934
935 /* bRequest 4: set char length to 8 bits */
936 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
937 4, USB_TYPE_VENDOR,
938 0x0808, 0x0000, NULL, 0, HZ * 3);
939 dev_dbg(dev, "%s - retB = %d\n", __func__, ret);
940
941 /* bRequest 2: set handshaking to use DTR/DSR */
942 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
943 2, USB_TYPE_VENDOR,
944 0x0000, 0x0100, NULL, 0, HZ * 3);
945 dev_dbg(dev, "%s - retC = %d\n", __func__, ret);
946
947 /* device reset */
948 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
949 mce_sync_in(ir, NULL, maxp);
950
951 /* get hw/sw revision? */
952 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
953 mce_sync_in(ir, NULL, maxp);
954
955 kfree(data);
956 };
957
958 static void mceusb_gen2_init(struct mceusb_dev *ir)
959 {
960 int maxp = ir->len_in;
961
962 /* device reset */
963 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
964 mce_sync_in(ir, NULL, maxp);
965
966 /* get hw/sw revision? */
967 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
968 mce_sync_in(ir, NULL, maxp);
969
970 /* unknown what the next two actually return... */
971 mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
972 mce_sync_in(ir, NULL, maxp);
973 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
974 mce_sync_in(ir, NULL, maxp);
975 }
976
977 static void mceusb_get_parameters(struct mceusb_dev *ir)
978 {
979 int maxp = ir->len_in;
980
981 /* get the carrier and frequency */
982 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
983 mce_sync_in(ir, NULL, maxp);
984
985 if (!ir->flags.no_tx) {
986 /* get the transmitter bitmask */
987 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
988 mce_sync_in(ir, NULL, maxp);
989 }
990
991 /* get receiver timeout value */
992 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
993 mce_sync_in(ir, NULL, maxp);
994
995 /* get receiver sensor setting */
996 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
997 mce_sync_in(ir, NULL, maxp);
998 }
999
1000 static struct input_dev *mceusb_init_input_dev(struct mceusb_dev *ir)
1001 {
1002 struct input_dev *idev;
1003 struct ir_dev_props *props;
1004 struct device *dev = ir->dev;
1005 const char *rc_map = RC_MAP_RC6_MCE;
1006 const char *name = "Media Center Ed. eHome Infrared Remote Transceiver";
1007 int ret = -ENODEV;
1008
1009 idev = input_allocate_device();
1010 if (!idev) {
1011 dev_err(dev, "remote input dev allocation failed\n");
1012 goto idev_alloc_failed;
1013 }
1014
1015 ret = -ENOMEM;
1016 props = kzalloc(sizeof(struct ir_dev_props), GFP_KERNEL);
1017 if (!props) {
1018 dev_err(dev, "remote ir dev props allocation failed\n");
1019 goto props_alloc_failed;
1020 }
1021
1022 if (mceusb_model[ir->model].name)
1023 name = mceusb_model[ir->model].name;
1024
1025 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
1026 name,
1027 le16_to_cpu(ir->usbdev->descriptor.idVendor),
1028 le16_to_cpu(ir->usbdev->descriptor.idProduct));
1029
1030 idev->name = ir->name;
1031 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
1032 strlcat(ir->phys, "/input0", sizeof(ir->phys));
1033 idev->phys = ir->phys;
1034
1035 props->priv = ir;
1036 props->driver_type = RC_DRIVER_IR_RAW;
1037 props->allowed_protos = IR_TYPE_ALL;
1038 if (!ir->flags.no_tx) {
1039 props->s_tx_mask = mceusb_set_tx_mask;
1040 props->s_tx_carrier = mceusb_set_tx_carrier;
1041 props->tx_ir = mceusb_tx_ir;
1042 }
1043
1044 ir->props = props;
1045
1046 if (mceusb_model[ir->model].rc_map)
1047 rc_map = mceusb_model[ir->model].rc_map;
1048
1049 ret = ir_input_register(idev, rc_map, props, DRIVER_NAME);
1050 if (ret < 0) {
1051 dev_err(dev, "remote input device register failed\n");
1052 goto irdev_failed;
1053 }
1054
1055 return idev;
1056
1057 irdev_failed:
1058 kfree(props);
1059 props_alloc_failed:
1060 input_free_device(idev);
1061 idev_alloc_failed:
1062 return NULL;
1063 }
1064
1065 static int __devinit mceusb_dev_probe(struct usb_interface *intf,
1066 const struct usb_device_id *id)
1067 {
1068 struct usb_device *dev = interface_to_usbdev(intf);
1069 struct usb_host_interface *idesc;
1070 struct usb_endpoint_descriptor *ep = NULL;
1071 struct usb_endpoint_descriptor *ep_in = NULL;
1072 struct usb_endpoint_descriptor *ep_out = NULL;
1073 struct mceusb_dev *ir = NULL;
1074 int pipe, maxp, i;
1075 char buf[63], name[128] = "";
1076 enum mceusb_model_type model = id->driver_info;
1077 bool is_gen3;
1078 bool is_microsoft_gen1;
1079 bool tx_mask_inverted;
1080 bool is_polaris;
1081
1082 dev_dbg(&intf->dev, "%s called\n", __func__);
1083
1084 idesc = intf->cur_altsetting;
1085
1086 is_gen3 = mceusb_model[model].mce_gen3;
1087 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1088 tx_mask_inverted = mceusb_model[model].tx_mask_inverted;
1089 is_polaris = mceusb_model[model].is_polaris;
1090
1091 if (is_polaris) {
1092 /* Interface 0 is IR */
1093 if (idesc->desc.bInterfaceNumber)
1094 return -ENODEV;
1095 }
1096
1097 /* step through the endpoints to find first bulk in and out endpoint */
1098 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1099 ep = &idesc->endpoint[i].desc;
1100
1101 if ((ep_in == NULL)
1102 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1103 == USB_DIR_IN)
1104 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1105 == USB_ENDPOINT_XFER_BULK)
1106 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1107 == USB_ENDPOINT_XFER_INT))) {
1108
1109 ep_in = ep;
1110 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
1111 ep_in->bInterval = 1;
1112 dev_dbg(&intf->dev, "acceptable inbound endpoint "
1113 "found\n");
1114 }
1115
1116 if ((ep_out == NULL)
1117 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1118 == USB_DIR_OUT)
1119 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1120 == USB_ENDPOINT_XFER_BULK)
1121 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1122 == USB_ENDPOINT_XFER_INT))) {
1123
1124 ep_out = ep;
1125 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
1126 ep_out->bInterval = 1;
1127 dev_dbg(&intf->dev, "acceptable outbound endpoint "
1128 "found\n");
1129 }
1130 }
1131 if (ep_in == NULL) {
1132 dev_dbg(&intf->dev, "inbound and/or endpoint not found\n");
1133 return -ENODEV;
1134 }
1135
1136 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1137 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1138
1139 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1140 if (!ir)
1141 goto mem_alloc_fail;
1142
1143 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1144 if (!ir->buf_in)
1145 goto buf_in_alloc_fail;
1146
1147 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1148 if (!ir->urb_in)
1149 goto urb_in_alloc_fail;
1150
1151 ir->usbdev = dev;
1152 ir->dev = &intf->dev;
1153 ir->len_in = maxp;
1154 ir->flags.microsoft_gen1 = is_microsoft_gen1;
1155 ir->flags.tx_mask_inverted = tx_mask_inverted;
1156 ir->flags.no_tx = mceusb_model[model].no_tx;
1157 ir->model = model;
1158
1159 /* Saving usb interface data for use by the transmitter routine */
1160 ir->usb_ep_in = ep_in;
1161 ir->usb_ep_out = ep_out;
1162
1163 if (dev->descriptor.iManufacturer
1164 && usb_string(dev, dev->descriptor.iManufacturer,
1165 buf, sizeof(buf)) > 0)
1166 strlcpy(name, buf, sizeof(name));
1167 if (dev->descriptor.iProduct
1168 && usb_string(dev, dev->descriptor.iProduct,
1169 buf, sizeof(buf)) > 0)
1170 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1171 " %s", buf);
1172
1173 ir->idev = mceusb_init_input_dev(ir);
1174 if (!ir->idev)
1175 goto input_dev_fail;
1176
1177 /* flush buffers on the device */
1178 mce_sync_in(ir, NULL, maxp);
1179 mce_sync_in(ir, NULL, maxp);
1180
1181 /* wire up inbound data handler */
1182 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
1183 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
1184 ir->urb_in->transfer_dma = ir->dma_in;
1185 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1186
1187 /* initialize device */
1188 if (ir->flags.microsoft_gen1)
1189 mceusb_gen1_init(ir);
1190 else if (!is_gen3)
1191 mceusb_gen2_init(ir);
1192
1193 mceusb_get_parameters(ir);
1194
1195 if (!ir->flags.no_tx)
1196 mceusb_set_tx_mask(ir, MCE_DEFAULT_TX_MASK);
1197
1198 usb_set_intfdata(intf, ir);
1199
1200 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
1201 dev->bus->busnum, dev->devnum);
1202
1203 return 0;
1204
1205 /* Error-handling path */
1206 input_dev_fail:
1207 usb_free_urb(ir->urb_in);
1208 urb_in_alloc_fail:
1209 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1210 buf_in_alloc_fail:
1211 kfree(ir);
1212 mem_alloc_fail:
1213 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1214
1215 return -ENOMEM;
1216 }
1217
1218
1219 static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1220 {
1221 struct usb_device *dev = interface_to_usbdev(intf);
1222 struct mceusb_dev *ir = usb_get_intfdata(intf);
1223
1224 usb_set_intfdata(intf, NULL);
1225
1226 if (!ir)
1227 return;
1228
1229 ir->usbdev = NULL;
1230 ir_input_unregister(ir->idev);
1231 usb_kill_urb(ir->urb_in);
1232 usb_free_urb(ir->urb_in);
1233 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1234
1235 kfree(ir);
1236 }
1237
1238 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1239 {
1240 struct mceusb_dev *ir = usb_get_intfdata(intf);
1241 dev_info(ir->dev, "suspend\n");
1242 usb_kill_urb(ir->urb_in);
1243 return 0;
1244 }
1245
1246 static int mceusb_dev_resume(struct usb_interface *intf)
1247 {
1248 struct mceusb_dev *ir = usb_get_intfdata(intf);
1249 dev_info(ir->dev, "resume\n");
1250 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1251 return -EIO;
1252 return 0;
1253 }
1254
1255 static struct usb_driver mceusb_dev_driver = {
1256 .name = DRIVER_NAME,
1257 .probe = mceusb_dev_probe,
1258 .disconnect = mceusb_dev_disconnect,
1259 .suspend = mceusb_dev_suspend,
1260 .resume = mceusb_dev_resume,
1261 .reset_resume = mceusb_dev_resume,
1262 .id_table = mceusb_dev_table
1263 };
1264
1265 static int __init mceusb_dev_init(void)
1266 {
1267 int ret;
1268
1269 ret = usb_register(&mceusb_dev_driver);
1270 if (ret < 0)
1271 printk(KERN_ERR DRIVER_NAME
1272 ": usb register failed, result = %d\n", ret);
1273
1274 return ret;
1275 }
1276
1277 static void __exit mceusb_dev_exit(void)
1278 {
1279 usb_deregister(&mceusb_dev_driver);
1280 }
1281
1282 module_init(mceusb_dev_init);
1283 module_exit(mceusb_dev_exit);
1284
1285 MODULE_DESCRIPTION(DRIVER_DESC);
1286 MODULE_AUTHOR(DRIVER_AUTHOR);
1287 MODULE_LICENSE("GPL");
1288 MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1289
1290 module_param(debug, bool, S_IRUGO | S_IWUSR);
1291 MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux kernel - Deliverables
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