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[media] mceusb: allow a per-model RC map
[deliverable/linux.git] / drivers / media / IR / mceusb.c
CommitLineData
66e89522
JW		 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 *
66e89522
JW		 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 */
657290b6
JW		 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 */
66e89522
JW		 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_PACKET_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */
39dc5c3a 59#define MCE_CONTROL_HEADER 0x9f /* MCE status header */
66e89522
JW		 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 /* Val opts: TX1=0x01, TX2=0x02, ALL=0x03 */
63#define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */
39dc5c3a
MCC		 64#define MCE_PULSE_MASK 0x7f /* Pulse mask */
65#define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */
66#define MCE_COMMAND_MASK 0xe0 /* Mask out command bits */
67#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
68#define MCE_COMMAND_IRDATA 0x80 /* buf & MCE_COMMAND_MASK == 0x80 -> IR data */
66e89522
JW		 69
70
71/* module parameters */
72#ifdef CONFIG_USB_DEBUG
73static int debug = 1;
74#else
75static int debug;
76#endif
77
78/* general constants */
79#define SEND_FLAG_IN_PROGRESS 1
80#define SEND_FLAG_COMPLETE 2
81#define RECV_FLAG_IN_PROGRESS 3
82#define RECV_FLAG_COMPLETE 4
83
84#define MCEUSB_RX 1
85#define MCEUSB_TX 2
86
87#define VENDOR_PHILIPS 0x0471
88#define VENDOR_SMK 0x0609
89#define VENDOR_TATUNG 0x1460
90#define VENDOR_GATEWAY 0x107b
91#define VENDOR_SHUTTLE 0x1308
92#define VENDOR_SHUTTLE2 0x051c
93#define VENDOR_MITSUMI 0x03ee
94#define VENDOR_TOPSEED 0x1784
95#define VENDOR_RICAVISION 0x179d
96#define VENDOR_ITRON 0x195d
97#define VENDOR_FIC 0x1509
98#define VENDOR_LG 0x043e
99#define VENDOR_MICROSOFT 0x045e
100#define VENDOR_FORMOSA 0x147a
101#define VENDOR_FINTEK 0x1934
102#define VENDOR_PINNACLE 0x2304
103#define VENDOR_ECS 0x1019
104#define VENDOR_WISTRON 0x0fb8
105#define VENDOR_COMPRO 0x185b
106#define VENDOR_NORTHSTAR 0x04eb
107#define VENDOR_REALTEK 0x0bda
108#define VENDOR_TIVO 0x105a
56e92f60 109#define VENDOR_CONEXANT 0x0572
66e89522 110
37dbd3a6
MCC		 111enum mceusb_model_type {
112 MCE_GEN2 = 0, /* Most boards */
113 MCE_GEN1,
114 MCE_GEN3,
115 MCE_GEN2_TX_INV,
116 POLARIS_EVK,
117};
118
119struct mceusb_model {
120 u32 mce_gen1:1;
121 u32 mce_gen2:1;
122 u32 mce_gen3:1;
123 u32 tx_mask_inverted:1;
124 u32 is_polaris:1;
125
17c2b1fd 126 const char *rc_map; /* Allow specify a per-board map */
37dbd3a6
MCC		 127};
128
129static const struct mceusb_model mceusb_model[] = {
130 [MCE_GEN1] = {
131 .mce_gen1 = 1,
132 .tx_mask_inverted = 1,
133 },
134 [MCE_GEN2] = {
135 .mce_gen2 = 1,
136 },
137 [MCE_GEN2_TX_INV] = {
138 .mce_gen2 = 1,
139 .tx_mask_inverted = 1,
140 },
141 [MCE_GEN3] = {
142 .mce_gen3 = 1,
143 .tx_mask_inverted = 1,
144 },
145 [POLARIS_EVK] = {
146 .is_polaris = 1,
17c2b1fd
MCC		 147 /*
148 * In fact, the EVK is shipped without
149 * remotes, but we should have something handy,
150 * to allow testing it
151 */
152 .rc_map = RC_MAP_RC5_HAUPPAUGE_NEW,
37dbd3a6
MCC		 153 },
154};
155
66e89522
JW		 156static struct usb_device_id mceusb_dev_table[] = {
157 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
37dbd3a6
MCC		 158 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
159 .driver_info = MCE_GEN1 },
66e89522
JW		 160 /* Philips Infrared Transceiver - Sahara branded */
161 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
162 /* Philips Infrared Transceiver - HP branded */
37dbd3a6
MCC		 163 { USB_DEVICE(VENDOR_PHILIPS, 0x060c),
164 .driver_info = MCE_GEN2_TX_INV },
66e89522
JW		 165 /* Philips SRM5100 */
166 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
167 /* Philips Infrared Transceiver - Omaura */
168 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
169 /* Philips Infrared Transceiver - Spinel plus */
170 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
171 /* Philips eHome Infrared Transceiver */
172 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
c13df9cf
JW		 173 /* Philips/Spinel plus IR transceiver for ASUS */
174 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
175 /* Philips/Spinel plus IR transceiver for ASUS */
176 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
66e89522
JW		 177 /* Realtek MCE IR Receiver */
178 { USB_DEVICE(VENDOR_REALTEK, 0x0161) },
179 /* SMK/Toshiba G83C0004D410 */
37dbd3a6
MCC		 180 { USB_DEVICE(VENDOR_SMK, 0x031d),
181 .driver_info = MCE_GEN2_TX_INV },
66e89522 182 /* SMK eHome Infrared Transceiver (Sony VAIO) */
37dbd3a6
MCC		 183 { USB_DEVICE(VENDOR_SMK, 0x0322),
184 .driver_info = MCE_GEN2_TX_INV },
66e89522 185 /* bundled with Hauppauge PVR-150 */
37dbd3a6
MCC		 186 { USB_DEVICE(VENDOR_SMK, 0x0334),
187 .driver_info = MCE_GEN2_TX_INV },
66e89522
JW		 188 /* SMK eHome Infrared Transceiver */
189 { USB_DEVICE(VENDOR_SMK, 0x0338) },
190 /* Tatung eHome Infrared Transceiver */
191 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
192 /* Shuttle eHome Infrared Transceiver */
193 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
194 /* Shuttle eHome Infrared Transceiver */
195 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
196 /* Gateway eHome Infrared Transceiver */
197 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
198 /* Mitsumi */
199 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
200 /* Topseed eHome Infrared Transceiver */
37dbd3a6
MCC		 201 { USB_DEVICE(VENDOR_TOPSEED, 0x0001),
202 .driver_info = MCE_GEN2_TX_INV },
66e89522 203 /* Topseed HP eHome Infrared Transceiver */
37dbd3a6
MCC		 204 { USB_DEVICE(VENDOR_TOPSEED, 0x0006),
205 .driver_info = MCE_GEN2_TX_INV },
66e89522 206 /* Topseed eHome Infrared Transceiver */
37dbd3a6
MCC		 207 { USB_DEVICE(VENDOR_TOPSEED, 0x0007),
208 .driver_info = MCE_GEN2_TX_INV },
66e89522 209 /* Topseed eHome Infrared Transceiver */
37dbd3a6
MCC		 210 { USB_DEVICE(VENDOR_TOPSEED, 0x0008),
211 .driver_info = MCE_GEN3 },
66e89522 212 /* Topseed eHome Infrared Transceiver */
37dbd3a6
MCC		 213 { USB_DEVICE(VENDOR_TOPSEED, 0x000a),
214 .driver_info = MCE_GEN2_TX_INV },
66e89522 215 /* Topseed eHome Infrared Transceiver */
37dbd3a6
MCC		 216 { USB_DEVICE(VENDOR_TOPSEED, 0x0011),
217 .driver_info = MCE_GEN2_TX_INV },
66e89522
JW		 218 /* Ricavision internal Infrared Transceiver */
219 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
220 /* Itron ione Libra Q-11 */
221 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
222 /* FIC eHome Infrared Transceiver */
223 { USB_DEVICE(VENDOR_FIC, 0x9242) },
224 /* LG eHome Infrared Transceiver */
225 { USB_DEVICE(VENDOR_LG, 0x9803) },
226 /* Microsoft MCE Infrared Transceiver */
227 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
228 /* Formosa eHome Infrared Transceiver */
229 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
230 /* Formosa21 / eHome Infrared Receiver */
231 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
232 /* Formosa aim / Trust MCE Infrared Receiver */
233 { USB_DEVICE(VENDOR_FORMOSA, 0xe017) },
234 /* Formosa Industrial Computing / Beanbag Emulation Device */
235 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
236 /* Formosa21 / eHome Infrared Receiver */
237 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
238 /* Formosa Industrial Computing AIM IR605/A */
239 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
240 /* Formosa Industrial Computing */
241 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
242 /* Fintek eHome Infrared Transceiver */
243 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
244 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
245 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
246 /* Pinnacle Remote Kit */
37dbd3a6
MCC		 247 { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
248 .driver_info = MCE_GEN3 },
66e89522
JW		 249 /* Elitegroup Computer Systems IR */
250 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
251 /* Wistron Corp. eHome Infrared Receiver */
252 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
253 /* Compro K100 */
254 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
255 /* Compro K100 v2 */
256 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
257 /* Northstar Systems, Inc. eHome Infrared Transceiver */
258 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
259 /* TiVo PC IR Receiver */
260 { USB_DEVICE(VENDOR_TIVO, 0x2000) },
56e92f60 261 /* Conexant SDK */
37dbd3a6
MCC		 262 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
263 .driver_info = POLARIS_EVK },
66e89522
JW		 264 /* Terminating entry */
265 { }
266};
267
66e89522
JW		 268/* data structure for each usb transceiver */
269struct mceusb_dev {
270 /* ir-core bits */
66e89522 271 struct ir_dev_props *props;
66e89522
JW		 272 struct ir_raw_event rawir;
273
274 /* core device bits */
275 struct device *dev;
276 struct input_dev *idev;
277
278 /* usb */
279 struct usb_device *usbdev;
280 struct urb *urb_in;
281 struct usb_endpoint_descriptor *usb_ep_in;
282 struct usb_endpoint_descriptor *usb_ep_out;
283
284 /* buffers and dma */
285 unsigned char *buf_in;
286 unsigned int len_in;
39dc5c3a
MCC		 287
288 enum {
289 CMD_HEADER = 0,
290 SUBCMD,
291 CMD_DATA,
292 PARSE_IRDATA,
293 } parser_state;
294 u8 cmd, rem; /* Remaining IR data bytes in packet */
295
66e89522
JW		 296 dma_addr_t dma_in;
297 dma_addr_t dma_out;
298
299 struct {
300 u32 connected:1;
657290b6 301 u32 tx_mask_inverted:1;
66e89522 302 u32 microsoft_gen1:1;
66e89522
JW		 303 } flags;
304
e23fb964 305 /* transmit support */
66e89522 306 int send_flags;
e23fb964
JW		 307 u32 carrier;
308 unsigned char tx_mask;
66e89522
JW		 309
310 char name[128];
311 char phys[64];
37dbd3a6 312 enum mceusb_model_type model;
66e89522
JW		 313};
314
315/*
316 * MCE Device Command Strings
317 * Device command responses vary from device to device...
318 * - DEVICE_RESET resets the hardware to its default state
319 * - GET_REVISION fetches the hardware/software revision, common
320 * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
321 * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
322 * device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
323 * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
324 * ((clk / frequency) - 1)
325 * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
326 * response in the form of 9f 0c msb lsb
327 * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
328 * the form of 9f 08 bm, where bm is the bitmask
329 * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
330 * general use one or short-range learning one, in the form of
331 * 9f 14 ss, where ss is either 01 for long-range or 02 for short
332 * - SET_CARRIER_FREQ sets a new carrier mode and frequency
333 * - SET_TX_BITMASK sets the transmitter bitmask
334 * - SET_RX_TIMEOUT sets the receiver timeout
335 * - SET_RX_SENSOR sets which receiver sensor to use
336 */
337static char DEVICE_RESET[] = {0x00, 0xff, 0xaa};
338static char GET_REVISION[] = {0xff, 0x0b};
339static char GET_UNKNOWN[] = {0xff, 0x18};
39dc5c3a
MCC		 340static char GET_UNKNOWN2[] = {MCE_CONTROL_HEADER, 0x05};
341static char GET_CARRIER_FREQ[] = {MCE_CONTROL_HEADER, 0x07};
342static char GET_RX_TIMEOUT[] = {MCE_CONTROL_HEADER, 0x0d};
343static char GET_TX_BITMASK[] = {MCE_CONTROL_HEADER, 0x13};
344static char GET_RX_SENSOR[] = {MCE_CONTROL_HEADER, 0x15};
66e89522
JW		 345/* sub in desired values in lower byte or bytes for full command */
346/* FIXME: make use of these for transmit.
39dc5c3a
MCC		 347static char SET_CARRIER_FREQ[] = {MCE_CONTROL_HEADER, 0x06, 0x00, 0x00};
348static char SET_TX_BITMASK[] = {MCE_CONTROL_HEADER, 0x08, 0x00};
349static char SET_RX_TIMEOUT[] = {MCE_CONTROL_HEADER, 0x0c, 0x00, 0x00};
350static char SET_RX_SENSOR[] = {MCE_CONTROL_HEADER, 0x14, 0x00};
66e89522
JW		 351*/
352
39dc5c3a
MCC		 353static int mceusb_cmdsize(u8 cmd, u8 subcmd)
354{
355 int datasize = 0;
356
357 switch (cmd) {
358 case 0x00:
359 if (subcmd == 0xff)
360 datasize = 1;
361 break;
362 case 0xff:
363 switch (subcmd) {
364 case 0x0b:
365 datasize = 2;
366 break;
367 }
368 case MCE_CONTROL_HEADER:
369 switch (subcmd) {
370 case 0x04:
371 case 0x06:
372 case 0x0c:
373 case 0x15:
374 datasize = 2;
375 break;
376 case 0x08:
377 case 0x14:
378 datasize = 1;
379 break;
380 }
381 }
382 return datasize;
383}
384
66e89522
JW		 385static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
386 int len, bool out)
387{
388 char codes[USB_BUFLEN * 3 + 1];
389 char inout[9];
390 int i;
391 u8 cmd, subcmd, data1, data2;
392 struct device *dev = ir->dev;
657290b6 393 int idx = 0;
66e89522 394
657290b6
JW		 395 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
396 if (ir->flags.microsoft_gen1 && !out)
397 idx = 2;
66e89522 398
657290b6 399 if (len <= idx)
66e89522
JW		 400 return;
401
402 for (i = 0; i < len && i < USB_BUFLEN; i++)
403 snprintf(codes + i * 3, 4, "%02x ", buf[i] & 0xFF);
404
405 dev_info(dev, "%sx data: %s (length=%d)\n",
406 (out ? "t" : "r"), codes, len);
407
408 if (out)
409 strcpy(inout, "Request\0");
410 else
411 strcpy(inout, "Got\0");
412
657290b6
JW		 413 cmd = buf[idx] & 0xff;
414 subcmd = buf[idx + 1] & 0xff;
415 data1 = buf[idx + 2] & 0xff;
416 data2 = buf[idx + 3] & 0xff;
66e89522
JW		 417
418 switch (cmd) {
419 case 0x00:
420 if (subcmd == 0xff && data1 == 0xaa)
421 dev_info(dev, "Device reset requested\n");
422 else
423 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
424 cmd, subcmd);
425 break;
426 case 0xff:
427 switch (subcmd) {
428 case 0x0b:
429 if (len == 2)
430 dev_info(dev, "Get hw/sw rev?\n");
431 else
432 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
433 "0x%02x 0x%02x\n", data1, data2,
657290b6 434 buf[idx + 4], buf[idx + 5]);
66e89522
JW		 435 break;
436 case 0xaa:
437 dev_info(dev, "Device reset requested\n");
438 break;
439 case 0xfe:
440 dev_info(dev, "Previous command not supported\n");
441 break;
442 case 0x18:
443 case 0x1b:
444 default:
445 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
446 cmd, subcmd);
447 break;
448 }
449 break;
39dc5c3a 450 case MCE_CONTROL_HEADER:
66e89522
JW		 451 switch (subcmd) {
452 case 0x03:
453 dev_info(dev, "Ping\n");
454 break;
455 case 0x04:
456 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
457 data1, data2);
458 break;
459 case 0x06:
460 dev_info(dev, "%s carrier mode and freq of "
461 "0x%02x 0x%02x\n", inout, data1, data2);
462 break;
463 case 0x07:
464 dev_info(dev, "Get carrier mode and freq\n");
465 break;
466 case 0x08:
467 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
468 inout, data1);
469 break;
470 case 0x0c:
471 /* value is in units of 50us, so x*50/100 or x/2 ms */
472 dev_info(dev, "%s receive timeout of %d ms\n",
473 inout, ((data1 << 8) | data2) / 2);
474 break;
475 case 0x0d:
476 dev_info(dev, "Get receive timeout\n");
477 break;
478 case 0x13:
479 dev_info(dev, "Get transmit blaster mask\n");
480 break;
481 case 0x14:
482 dev_info(dev, "%s %s-range receive sensor in use\n",
483 inout, data1 == 0x02 ? "short" : "long");
484 break;
485 case 0x15:
486 if (len == 2)
487 dev_info(dev, "Get receive sensor\n");
488 else
489 dev_info(dev, "Received pulse count is %d\n",
490 ((data1 << 8) | data2));
491 break;
492 case 0xfe:
493 dev_info(dev, "Error! Hardware is likely wedged...\n");
494 break;
495 case 0x05:
496 case 0x09:
497 case 0x0f:
498 default:
499 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
500 cmd, subcmd);
501 break;
502 }
503 break;
504 default:
505 break;
506 }
507}
508
7c294402 509static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
66e89522
JW		 510{
511 struct mceusb_dev *ir;
512 int len;
513
514 if (!urb)
515 return;
516
517 ir = urb->context;
518 if (ir) {
519 len = urb->actual_length;
520
521 dev_dbg(ir->dev, "callback called (status=%d len=%d)\n",
522 urb->status, len);
523
524 if (debug)
525 mceusb_dev_printdata(ir, urb->transfer_buffer,
526 len, true);
527 }
528
529}
530
531/* request incoming or send outgoing usb packet - used to initialize remote */
532static void mce_request_packet(struct mceusb_dev *ir,
533 struct usb_endpoint_descriptor *ep,
534 unsigned char *data, int size, int urb_type)
535{
536 int res;
537 struct urb *async_urb;
538 struct device *dev = ir->dev;
539 unsigned char *async_buf;
540
541 if (urb_type == MCEUSB_TX) {
542 async_urb = usb_alloc_urb(0, GFP_KERNEL);
543 if (unlikely(!async_urb)) {
544 dev_err(dev, "Error, couldn't allocate urb!\n");
545 return;
546 }
547
548 async_buf = kzalloc(size, GFP_KERNEL);
549 if (!async_buf) {
550 dev_err(dev, "Error, couldn't allocate buf!\n");
551 usb_free_urb(async_urb);
552 return;
553 }
554
555 /* outbound data */
556 usb_fill_int_urb(async_urb, ir->usbdev,
557 usb_sndintpipe(ir->usbdev, ep->bEndpointAddress),
7c294402 558 async_buf, size, (usb_complete_t)mce_async_callback,
66e89522
JW		 559 ir, ep->bInterval);
560 memcpy(async_buf, data, size);
561
562 } else if (urb_type == MCEUSB_RX) {
563 /* standard request */
564 async_urb = ir->urb_in;
565 ir->send_flags = RECV_FLAG_IN_PROGRESS;
566
567 } else {
568 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
569 return;
570 }
571
572 dev_dbg(dev, "receive request called (size=%#x)\n", size);
573
574 async_urb->transfer_buffer_length = size;
575 async_urb->dev = ir->usbdev;
576
577 res = usb_submit_urb(async_urb, GFP_ATOMIC);
578 if (res) {
579 dev_dbg(dev, "receive request FAILED! (res=%d)\n", res);
580 return;
581 }
582 dev_dbg(dev, "receive request complete (res=%d)\n", res);
583}
584
585static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
586{
587 mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX);
588}
589
590static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size)
591{
592 mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX);
593}
594
e23fb964
JW		 595/* Send data out the IR blaster port(s) */
596static int mceusb_tx_ir(void *priv, int *txbuf, u32 n)
597{
598 struct mceusb_dev *ir = priv;
599 int i, ret = 0;
600 int count, cmdcount = 0;
601 unsigned char *cmdbuf; /* MCE command buffer */
602 long signal_duration = 0; /* Singnal length in us */
603 struct timeval start_time, end_time;
604
605 do_gettimeofday(&start_time);
606
607 count = n / sizeof(int);
608
609 cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL);
610 if (!cmdbuf)
611 return -ENOMEM;
612
613 /* MCE tx init header */
614 cmdbuf[cmdcount++] = MCE_CONTROL_HEADER;
615 cmdbuf[cmdcount++] = 0x08;
616 cmdbuf[cmdcount++] = ir->tx_mask;
617
618 /* Generate mce packet data */
619 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
620 signal_duration += txbuf[i];
621 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
622
623 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
624
625 /* Insert mce packet header every 4th entry */
626 if ((cmdcount < MCE_CMDBUF_SIZE) &&
627 (cmdcount - MCE_TX_HEADER_LENGTH) %
628 MCE_CODE_LENGTH == 0)
629 cmdbuf[cmdcount++] = MCE_PACKET_HEADER;
630
631 /* Insert mce packet data */
632 if (cmdcount < MCE_CMDBUF_SIZE)
633 cmdbuf[cmdcount++] =
634 (txbuf[i] < MCE_PULSE_BIT ?
635 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
636 (i & 1 ? 0x00 : MCE_PULSE_BIT);
637 else {
638 ret = -EINVAL;
639 goto out;
640 }
641
642 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
643 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
644 }
645
646 /* Fix packet length in last header */
647 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
648 0x80 + (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH - 1;
649
650 /* Check if we have room for the empty packet at the end */
651 if (cmdcount >= MCE_CMDBUF_SIZE) {
652 ret = -EINVAL;
653 goto out;
654 }
655
656 /* All mce commands end with an empty packet (0x80) */
657 cmdbuf[cmdcount++] = 0x80;
658
659 /* Transmit the command to the mce device */
660 mce_async_out(ir, cmdbuf, cmdcount);
661
662 /*
663 * The lircd gap calculation expects the write function to
664 * wait the time it takes for the ircommand to be sent before
665 * it returns.
666 */
667 do_gettimeofday(&end_time);
668 signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
669 (end_time.tv_sec - start_time.tv_sec) * 1000000;
670
671 /* delay with the closest number of ticks */
672 set_current_state(TASK_INTERRUPTIBLE);
673 schedule_timeout(usecs_to_jiffies(signal_duration));
674
675out:
676 kfree(cmdbuf);
677 return ret ? ret : n;
678}
679
657290b6
JW		 680/* Sets active IR outputs -- mce devices typically (all?) have two */
681static int mceusb_set_tx_mask(void *priv, u32 mask)
682{
683 struct mceusb_dev *ir = priv;
684
685 if (ir->flags.tx_mask_inverted)
686 ir->tx_mask = (mask != 0x03 ? mask ^ 0x03 : mask) << 1;
687 else
688 ir->tx_mask = mask;
689
690 return 0;
691}
692
e23fb964
JW		 693/* Sets the send carrier frequency and mode */
694static int mceusb_set_tx_carrier(void *priv, u32 carrier)
695{
696 struct mceusb_dev *ir = priv;
697 int clk = 10000000;
698 int prescaler = 0, divisor = 0;
39dc5c3a 699 unsigned char cmdbuf[4] = { MCE_CONTROL_HEADER, 0x06, 0x00, 0x00 };
e23fb964
JW		 700
701 /* Carrier has changed */
702 if (ir->carrier != carrier) {
703
704 if (carrier == 0) {
705 ir->carrier = carrier;
706 cmdbuf[2] = 0x01;
707 cmdbuf[3] = 0x80;
708 dev_dbg(ir->dev, "%s: disabling carrier "
709 "modulation\n", __func__);
710 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
711 return carrier;
712 }
713
714 for (prescaler = 0; prescaler < 4; ++prescaler) {
715 divisor = (clk >> (2 * prescaler)) / carrier;
716 if (divisor <= 0xFF) {
717 ir->carrier = carrier;
718 cmdbuf[2] = prescaler;
719 cmdbuf[3] = divisor;
720 dev_dbg(ir->dev, "%s: requesting %u HZ "
721 "carrier\n", __func__, carrier);
722
723 /* Transmit new carrier to mce device */
724 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
725 return carrier;
726 }
727 }
728
729 return -EINVAL;
730
731 }
732
733 return carrier;
734}
735
66e89522
JW		 736static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
737{
4651918a 738 DEFINE_IR_RAW_EVENT(rawir);
39dc5c3a 739 int i = 0;
66e89522
JW		 740
741 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
742 if (ir->flags.microsoft_gen1)
39dc5c3a 743 i = 2;
66e89522 744
39dc5c3a
MCC		 745 for (; i < buf_len; i++) {
746 switch (ir->parser_state) {
747 case SUBCMD:
748 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
749 ir->parser_state = CMD_DATA;
750 break;
751 case PARSE_IRDATA:
66e89522 752 ir->rem--;
66e89522
JW		 753 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
754 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
755 * MCE_TIME_UNIT * 1000;
756
757 if ((ir->buf_in[i] & MCE_PULSE_MASK) == 0x7f) {
39dc5c3a 758 if (ir->rawir.pulse == rawir.pulse) {
66e89522 759 ir->rawir.duration += rawir.duration;
39dc5c3a 760 } else {
66e89522
JW		 761 ir->rawir.duration = rawir.duration;
762 ir->rawir.pulse = rawir.pulse;
763 }
39dc5c3a
MCC		 764 if (ir->rem)
765 break;
66e89522
JW		 766 }
767 rawir.duration += ir->rawir.duration;
768 ir->rawir.duration = 0;
769 ir->rawir.pulse = rawir.pulse;
770
771 dev_dbg(ir->dev, "Storing %s with duration %d\n",
772 rawir.pulse ? "pulse" : "space",
773 rawir.duration);
774
775 ir_raw_event_store(ir->idev, &rawir);
39dc5c3a
MCC		 776 break;
777 case CMD_DATA:
778 ir->rem--;
779 break;
780 case CMD_HEADER:
781 /* decode mce packets of the form (84),AA,BB,CC,DD */
782 /* IR data packets can span USB messages - rem */
783 ir->cmd = ir->buf_in[i];
784 if ((ir->cmd == MCE_CONTROL_HEADER) ||
785 ((ir->cmd & MCE_COMMAND_MASK) != MCE_COMMAND_IRDATA)) {
786 ir->parser_state = SUBCMD;
787 continue;
788 }
789 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
790 dev_dbg(ir->dev, "Processing RX data: len = %d\n",
791 ir->rem);
792 if (ir->rem) {
793 ir->parser_state = PARSE_IRDATA;
794 break;
795 }
796 /*
797 * a package with len=0 (e. g. 0x80) means end of
798 * data. We could use it to do the call to
799 * ir_raw_event_handle(). For now, we don't need to
800 * use it.
801 */
802 break;
66e89522
JW		 803 }
804
39dc5c3a
MCC		 805 if (ir->parser_state != CMD_HEADER && !ir->rem)
806 ir->parser_state = CMD_HEADER;
66e89522 807 }
39dc5c3a
MCC		 808 dev_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
809 ir_raw_event_handle(ir->idev);
66e89522
JW		 810}
811
66e89522
JW		 812static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
813{
814 struct mceusb_dev *ir;
815 int buf_len;
816
817 if (!urb)
818 return;
819
820 ir = urb->context;
821 if (!ir) {
822 usb_unlink_urb(urb);
823 return;
824 }
825
826 buf_len = urb->actual_length;
827
66e89522
JW		 828 if (debug)
829 mceusb_dev_printdata(ir, urb->transfer_buffer, buf_len, false);
830
831 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
832 ir->send_flags = SEND_FLAG_COMPLETE;
7a9fcb41 833 dev_dbg(ir->dev, "setup answer received %d bytes\n",
66e89522
JW		 834 buf_len);
835 }
836
837 switch (urb->status) {
838 /* success */
839 case 0:
840 mceusb_process_ir_data(ir, buf_len);
841 break;
842
843 case -ECONNRESET:
844 case -ENOENT:
845 case -ESHUTDOWN:
846 usb_unlink_urb(urb);
847 return;
848
849 case -EPIPE:
850 default:
39dc5c3a 851 dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
66e89522
JW		 852 break;
853 }
854
855 usb_submit_urb(urb, GFP_ATOMIC);
856}
857
858static void mceusb_gen1_init(struct mceusb_dev *ir)
859{
ca17a4f0 860 int ret;
22b0766b 861 int maxp = ir->len_in;
66e89522 862 struct device *dev = ir->dev;
b48592e4 863 char *data;
657290b6
JW		 864
865 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
866 if (!data) {
867 dev_err(dev, "%s: memory allocation failed!\n", __func__);
657290b6
JW		 868 return;
869 }
66e89522
JW		 870
871 /*
b48592e4 872 * This is a strange one. Windows issues a set address to the device
66e89522
JW		 873 * on the receive control pipe and expect a certain value pair back
874 */
66e89522
JW		 875 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
876 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
657290b6 877 data, USB_CTRL_MSG_SZ, HZ * 3);
66e89522
JW		 878 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
879 dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
880 __func__, data[0], data[1]);
881
882 /* set feature: bit rate 38400 bps */
883 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
884 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
885 0xc04e, 0x0000, NULL, 0, HZ * 3);
886
887 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
888
889 /* bRequest 4: set char length to 8 bits */
890 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
891 4, USB_TYPE_VENDOR,
892 0x0808, 0x0000, NULL, 0, HZ * 3);
893 dev_dbg(dev, "%s - retB = %d\n", __func__, ret);
894
895 /* bRequest 2: set handshaking to use DTR/DSR */
896 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
897 2, USB_TYPE_VENDOR,
898 0x0000, 0x0100, NULL, 0, HZ * 3);
899 dev_dbg(dev, "%s - retC = %d\n", __func__, ret);
657290b6 900
22b0766b
JW		 901 /* device reset */
902 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
903 mce_sync_in(ir, NULL, maxp);
904
905 /* get hw/sw revision? */
906 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
907 mce_sync_in(ir, NULL, maxp);
908
657290b6 909 kfree(data);
66e89522
JW		 910};
911
912static void mceusb_gen2_init(struct mceusb_dev *ir)
913{
914 int maxp = ir->len_in;
915
66e89522
JW		 916 /* device reset */
917 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
918 mce_sync_in(ir, NULL, maxp);
919
920 /* get hw/sw revision? */
921 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
922 mce_sync_in(ir, NULL, maxp);
923
22b0766b 924 /* unknown what the next two actually return... */
66e89522
JW		 925 mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
926 mce_sync_in(ir, NULL, maxp);
22b0766b
JW		 927 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
928 mce_sync_in(ir, NULL, maxp);
66e89522
JW		 929}
930
22b0766b 931static void mceusb_get_parameters(struct mceusb_dev *ir)
66e89522
JW		 932{
933 int maxp = ir->len_in;
934
66e89522
JW		 935 /* get the carrier and frequency */
936 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
937 mce_sync_in(ir, NULL, maxp);
938
939 /* get the transmitter bitmask */
940 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
941 mce_sync_in(ir, NULL, maxp);
942
943 /* get receiver timeout value */
944 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
945 mce_sync_in(ir, NULL, maxp);
946
947 /* get receiver sensor setting */
948 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
949 mce_sync_in(ir, NULL, maxp);
950}
951
952static struct input_dev *mceusb_init_input_dev(struct mceusb_dev *ir)
953{
954 struct input_dev *idev;
955 struct ir_dev_props *props;
66e89522 956 struct device *dev = ir->dev;
17c2b1fd 957 const char *rc_map = RC_MAP_RC6_MCE;
66e89522
JW		 958 int ret = -ENODEV;
959
960 idev = input_allocate_device();
961 if (!idev) {
962 dev_err(dev, "remote input dev allocation failed\n");
963 goto idev_alloc_failed;
964 }
965
966 ret = -ENOMEM;
967 props = kzalloc(sizeof(struct ir_dev_props), GFP_KERNEL);
968 if (!props) {
969 dev_err(dev, "remote ir dev props allocation failed\n");
970 goto props_alloc_failed;
971 }
972
e23fb964 973 snprintf(ir->name, sizeof(ir->name), "Media Center Ed. eHome "
66e89522
JW		 974 "Infrared Remote Transceiver (%04x:%04x)",
975 le16_to_cpu(ir->usbdev->descriptor.idVendor),
976 le16_to_cpu(ir->usbdev->descriptor.idProduct));
977
66e89522 978 idev->name = ir->name;
66e89522
JW		 979 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
980 strlcat(ir->phys, "/input0", sizeof(ir->phys));
981 idev->phys = ir->phys;
982
66e89522
JW		 983 props->priv = ir;
984 props->driver_type = RC_DRIVER_IR_RAW;
985 props->allowed_protos = IR_TYPE_ALL;
e23fb964
JW		 986 props->s_tx_mask = mceusb_set_tx_mask;
987 props->s_tx_carrier = mceusb_set_tx_carrier;
988 props->tx_ir = mceusb_tx_ir;
66e89522
JW		 989
990 ir->props = props;
66e89522 991
17c2b1fd
MCC		 992 if (mceusb_model[ir->model].rc_map)
993 rc_map = mceusb_model[ir->model].rc_map;
994
995 ret = ir_input_register(idev, rc_map, props, DRIVER_NAME);
66e89522
JW		 996 if (ret < 0) {
997 dev_err(dev, "remote input device register failed\n");
998 goto irdev_failed;
999 }
1000
1001 return idev;
1002
1003irdev_failed:
66e89522
JW		 1004 kfree(props);
1005props_alloc_failed:
1006 input_free_device(idev);
1007idev_alloc_failed:
1008 return NULL;
1009}
1010
1011static int __devinit mceusb_dev_probe(struct usb_interface *intf,
1012 const struct usb_device_id *id)
1013{
1014 struct usb_device *dev = interface_to_usbdev(intf);
1015 struct usb_host_interface *idesc;
1016 struct usb_endpoint_descriptor *ep = NULL;
1017 struct usb_endpoint_descriptor *ep_in = NULL;
1018 struct usb_endpoint_descriptor *ep_out = NULL;
66e89522 1019 struct mceusb_dev *ir = NULL;
d732a72d 1020 int pipe, maxp, i;
66e89522 1021 char buf[63], name[128] = "";
37dbd3a6 1022 enum mceusb_model_type model = id->driver_info;
66e89522
JW		 1023 bool is_gen3;
1024 bool is_microsoft_gen1;
657290b6 1025 bool tx_mask_inverted;
56e92f60 1026 bool is_polaris;
66e89522
JW		 1027
1028 dev_dbg(&intf->dev, ": %s called\n", __func__);
1029
66e89522
JW		 1030 idesc = intf->cur_altsetting;
1031
37dbd3a6
MCC		 1032 is_gen3 = mceusb_model[model].mce_gen3;
1033 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1034 tx_mask_inverted = mceusb_model[model].tx_mask_inverted;
1035 is_polaris = mceusb_model[model].is_polaris;
56e92f60
MCC		 1036
1037 if (is_polaris) {
1038 /* Interface 0 is IR */
1039 if (idesc->desc.bInterfaceNumber)
1040 return -ENODEV;
1041 }
66e89522
JW		 1042
1043 /* step through the endpoints to find first bulk in and out endpoint */
1044 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1045 ep = &idesc->endpoint[i].desc;
1046
1047 if ((ep_in == NULL)
1048 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1049 == USB_DIR_IN)
1050 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1051 == USB_ENDPOINT_XFER_BULK)
1052 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1053 == USB_ENDPOINT_XFER_INT))) {
1054
66e89522
JW		 1055 ep_in = ep;
1056 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
d732a72d
JW		 1057 ep_in->bInterval = 1;
1058 dev_dbg(&intf->dev, ": acceptable inbound endpoint "
1059 "found\n");
66e89522
JW		 1060 }
1061
1062 if ((ep_out == NULL)
1063 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1064 == USB_DIR_OUT)
1065 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1066 == USB_ENDPOINT_XFER_BULK)
1067 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1068 == USB_ENDPOINT_XFER_INT))) {
1069
66e89522
JW		 1070 ep_out = ep;
1071 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
d732a72d
JW		 1072 ep_out->bInterval = 1;
1073 dev_dbg(&intf->dev, ": acceptable outbound endpoint "
1074 "found\n");
66e89522
JW		 1075 }
1076 }
1077 if (ep_in == NULL) {
1078 dev_dbg(&intf->dev, ": inbound and/or endpoint not found\n");
1079 return -ENODEV;
1080 }
1081
1082 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1083 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1084
1085 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1086 if (!ir)
1087 goto mem_alloc_fail;
1088
1089 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1090 if (!ir->buf_in)
1091 goto buf_in_alloc_fail;
1092
1093 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1094 if (!ir->urb_in)
1095 goto urb_in_alloc_fail;
1096
1097 ir->usbdev = dev;
1098 ir->dev = &intf->dev;
1099 ir->len_in = maxp;
66e89522 1100 ir->flags.microsoft_gen1 = is_microsoft_gen1;
657290b6 1101 ir->flags.tx_mask_inverted = tx_mask_inverted;
37dbd3a6
MCC		 1102 ir->model = model;
1103
4651918a 1104 init_ir_raw_event(&ir->rawir);
66e89522
JW		 1105
1106 /* Saving usb interface data for use by the transmitter routine */
1107 ir->usb_ep_in = ep_in;
1108 ir->usb_ep_out = ep_out;
1109
1110 if (dev->descriptor.iManufacturer
1111 && usb_string(dev, dev->descriptor.iManufacturer,
1112 buf, sizeof(buf)) > 0)
1113 strlcpy(name, buf, sizeof(name));
1114 if (dev->descriptor.iProduct
1115 && usb_string(dev, dev->descriptor.iProduct,
1116 buf, sizeof(buf)) > 0)
1117 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1118 " %s", buf);
1119
1120 ir->idev = mceusb_init_input_dev(ir);
1121 if (!ir->idev)
1122 goto input_dev_fail;
1123
b48592e4
JW		 1124 /* flush buffers on the device */
1125 mce_sync_in(ir, NULL, maxp);
1126 mce_sync_in(ir, NULL, maxp);
1127
1128 /* wire up inbound data handler */
66e89522
JW		 1129 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
1130 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
1131 ir->urb_in->transfer_dma = ir->dma_in;
1132 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1133
66e89522 1134 /* initialize device */
22b0766b 1135 if (ir->flags.microsoft_gen1)
66e89522 1136 mceusb_gen1_init(ir);
22b0766b 1137 else if (!is_gen3)
66e89522
JW		 1138 mceusb_gen2_init(ir);
1139
22b0766b 1140 mceusb_get_parameters(ir);
66e89522 1141
657290b6 1142 mceusb_set_tx_mask(ir, MCE_DEFAULT_TX_MASK);
66e89522
JW		 1143
1144 usb_set_intfdata(intf, ir);
1145
1146 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
1147 dev->bus->busnum, dev->devnum);
1148
1149 return 0;
1150
1151 /* Error-handling path */
1152input_dev_fail:
1153 usb_free_urb(ir->urb_in);
1154urb_in_alloc_fail:
1155 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1156buf_in_alloc_fail:
1157 kfree(ir);
1158mem_alloc_fail:
1159 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1160
1161 return -ENOMEM;
1162}
1163
1164
1165static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1166{
1167 struct usb_device *dev = interface_to_usbdev(intf);
1168 struct mceusb_dev *ir = usb_get_intfdata(intf);
1169
1170 usb_set_intfdata(intf, NULL);
1171
1172 if (!ir)
1173 return;
1174
1175 ir->usbdev = NULL;
bd3881b1 1176 ir_input_unregister(ir->idev);
66e89522
JW		 1177 usb_kill_urb(ir->urb_in);
1178 usb_free_urb(ir->urb_in);
1179 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1180
1181 kfree(ir);
1182}
1183
1184static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1185{
1186 struct mceusb_dev *ir = usb_get_intfdata(intf);
1187 dev_info(ir->dev, "suspend\n");
1188 usb_kill_urb(ir->urb_in);
1189 return 0;
1190}
1191
1192static int mceusb_dev_resume(struct usb_interface *intf)
1193{
1194 struct mceusb_dev *ir = usb_get_intfdata(intf);
1195 dev_info(ir->dev, "resume\n");
1196 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1197 return -EIO;
1198 return 0;
1199}
1200
1201static struct usb_driver mceusb_dev_driver = {
1202 .name = DRIVER_NAME,
1203 .probe = mceusb_dev_probe,
1204 .disconnect = mceusb_dev_disconnect,
1205 .suspend = mceusb_dev_suspend,
1206 .resume = mceusb_dev_resume,
1207 .reset_resume = mceusb_dev_resume,
1208 .id_table = mceusb_dev_table
1209};
1210
1211static int __init mceusb_dev_init(void)
1212{
1213 int ret;
1214
1215 ret = usb_register(&mceusb_dev_driver);
1216 if (ret < 0)
1217 printk(KERN_ERR DRIVER_NAME
1218 ": usb register failed, result = %d\n", ret);
1219
1220 return ret;
1221}
1222
1223static void __exit mceusb_dev_exit(void)
1224{
1225 usb_deregister(&mceusb_dev_driver);
1226}
1227
1228module_init(mceusb_dev_init);
1229module_exit(mceusb_dev_exit);
1230
1231MODULE_DESCRIPTION(DRIVER_DESC);
1232MODULE_AUTHOR(DRIVER_AUTHOR);
1233MODULE_LICENSE("GPL");
1234MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1235
1236module_param(debug, bool, S_IRUGO | S_IWUSR);
1237MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux kernel - Deliverables
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