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V4L/DVB: v4l: Add MPC5121e VIU video capture driver
[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 */
59#define MCE_CONTROL_HEADER 0x9F /* MCE status header */
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 */
64#define MCE_PULSE_MASK 0x7F /* Pulse mask */
65#define MCE_MAX_PULSE_LENGTH 0x7F /* Longest transmittable pulse symbol */
d732a72d 66#define MCE_PACKET_LENGTH_MASK 0x1F /* Packet length mask */
66e89522
JW		 67
68
69/* module parameters */
70#ifdef CONFIG_USB_DEBUG
71static int debug = 1;
72#else
73static int debug;
74#endif
75
76/* general constants */
77#define SEND_FLAG_IN_PROGRESS 1
78#define SEND_FLAG_COMPLETE 2
79#define RECV_FLAG_IN_PROGRESS 3
80#define RECV_FLAG_COMPLETE 4
81
82#define MCEUSB_RX 1
83#define MCEUSB_TX 2
84
85#define VENDOR_PHILIPS 0x0471
86#define VENDOR_SMK 0x0609
87#define VENDOR_TATUNG 0x1460
88#define VENDOR_GATEWAY 0x107b
89#define VENDOR_SHUTTLE 0x1308
90#define VENDOR_SHUTTLE2 0x051c
91#define VENDOR_MITSUMI 0x03ee
92#define VENDOR_TOPSEED 0x1784
93#define VENDOR_RICAVISION 0x179d
94#define VENDOR_ITRON 0x195d
95#define VENDOR_FIC 0x1509
96#define VENDOR_LG 0x043e
97#define VENDOR_MICROSOFT 0x045e
98#define VENDOR_FORMOSA 0x147a
99#define VENDOR_FINTEK 0x1934
100#define VENDOR_PINNACLE 0x2304
101#define VENDOR_ECS 0x1019
102#define VENDOR_WISTRON 0x0fb8
103#define VENDOR_COMPRO 0x185b
104#define VENDOR_NORTHSTAR 0x04eb
105#define VENDOR_REALTEK 0x0bda
106#define VENDOR_TIVO 0x105a
107
108static struct usb_device_id mceusb_dev_table[] = {
109 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
110 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) },
111 /* Philips Infrared Transceiver - Sahara branded */
112 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
113 /* Philips Infrared Transceiver - HP branded */
114 { USB_DEVICE(VENDOR_PHILIPS, 0x060c) },
115 /* Philips SRM5100 */
116 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
117 /* Philips Infrared Transceiver - Omaura */
118 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
119 /* Philips Infrared Transceiver - Spinel plus */
120 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
121 /* Philips eHome Infrared Transceiver */
122 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
123 /* Realtek MCE IR Receiver */
124 { USB_DEVICE(VENDOR_REALTEK, 0x0161) },
125 /* SMK/Toshiba G83C0004D410 */
126 { USB_DEVICE(VENDOR_SMK, 0x031d) },
127 /* SMK eHome Infrared Transceiver (Sony VAIO) */
128 { USB_DEVICE(VENDOR_SMK, 0x0322) },
129 /* bundled with Hauppauge PVR-150 */
130 { USB_DEVICE(VENDOR_SMK, 0x0334) },
131 /* SMK eHome Infrared Transceiver */
132 { USB_DEVICE(VENDOR_SMK, 0x0338) },
133 /* Tatung eHome Infrared Transceiver */
134 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
135 /* Shuttle eHome Infrared Transceiver */
136 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
137 /* Shuttle eHome Infrared Transceiver */
138 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
139 /* Gateway eHome Infrared Transceiver */
140 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
141 /* Mitsumi */
142 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
143 /* Topseed eHome Infrared Transceiver */
144 { USB_DEVICE(VENDOR_TOPSEED, 0x0001) },
145 /* Topseed HP eHome Infrared Transceiver */
146 { USB_DEVICE(VENDOR_TOPSEED, 0x0006) },
147 /* Topseed eHome Infrared Transceiver */
148 { USB_DEVICE(VENDOR_TOPSEED, 0x0007) },
149 /* Topseed eHome Infrared Transceiver */
150 { USB_DEVICE(VENDOR_TOPSEED, 0x0008) },
151 /* Topseed eHome Infrared Transceiver */
152 { USB_DEVICE(VENDOR_TOPSEED, 0x000a) },
153 /* Topseed eHome Infrared Transceiver */
154 { USB_DEVICE(VENDOR_TOPSEED, 0x0011) },
155 /* Ricavision internal Infrared Transceiver */
156 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
157 /* Itron ione Libra Q-11 */
158 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
159 /* FIC eHome Infrared Transceiver */
160 { USB_DEVICE(VENDOR_FIC, 0x9242) },
161 /* LG eHome Infrared Transceiver */
162 { USB_DEVICE(VENDOR_LG, 0x9803) },
163 /* Microsoft MCE Infrared Transceiver */
164 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
165 /* Formosa eHome Infrared Transceiver */
166 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
167 /* Formosa21 / eHome Infrared Receiver */
168 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
169 /* Formosa aim / Trust MCE Infrared Receiver */
170 { USB_DEVICE(VENDOR_FORMOSA, 0xe017) },
171 /* Formosa Industrial Computing / Beanbag Emulation Device */
172 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
173 /* Formosa21 / eHome Infrared Receiver */
174 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
175 /* Formosa Industrial Computing AIM IR605/A */
176 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
177 /* Formosa Industrial Computing */
178 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
179 /* Fintek eHome Infrared Transceiver */
180 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
181 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
182 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
183 /* Pinnacle Remote Kit */
184 { USB_DEVICE(VENDOR_PINNACLE, 0x0225) },
185 /* Elitegroup Computer Systems IR */
186 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
187 /* Wistron Corp. eHome Infrared Receiver */
188 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
189 /* Compro K100 */
190 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
191 /* Compro K100 v2 */
192 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
193 /* Northstar Systems, Inc. eHome Infrared Transceiver */
194 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
195 /* TiVo PC IR Receiver */
196 { USB_DEVICE(VENDOR_TIVO, 0x2000) },
197 /* Terminating entry */
198 { }
199};
200
201static struct usb_device_id gen3_list[] = {
202 { USB_DEVICE(VENDOR_PINNACLE, 0x0225) },
203 { USB_DEVICE(VENDOR_TOPSEED, 0x0008) },
204 {}
205};
206
66e89522
JW		 207static struct usb_device_id microsoft_gen1_list[] = {
208 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) },
209 {}
210};
211
657290b6
JW		 212static struct usb_device_id std_tx_mask_list[] = {
213 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) },
214 { USB_DEVICE(VENDOR_PHILIPS, 0x060c) },
215 { USB_DEVICE(VENDOR_SMK, 0x031d) },
216 { USB_DEVICE(VENDOR_SMK, 0x0322) },
217 { USB_DEVICE(VENDOR_SMK, 0x0334) },
218 { USB_DEVICE(VENDOR_TOPSEED, 0x0001) },
219 { USB_DEVICE(VENDOR_TOPSEED, 0x0006) },
220 { USB_DEVICE(VENDOR_TOPSEED, 0x0007) },
221 { USB_DEVICE(VENDOR_TOPSEED, 0x0008) },
222 { USB_DEVICE(VENDOR_TOPSEED, 0x000a) },
223 { USB_DEVICE(VENDOR_TOPSEED, 0x0011) },
224 { USB_DEVICE(VENDOR_PINNACLE, 0x0225) },
225 {}
226};
227
66e89522
JW		 228/* data structure for each usb transceiver */
229struct mceusb_dev {
230 /* ir-core bits */
231 struct ir_input_dev *irdev;
232 struct ir_dev_props *props;
66e89522
JW		 233 struct ir_raw_event rawir;
234
235 /* core device bits */
236 struct device *dev;
237 struct input_dev *idev;
238
239 /* usb */
240 struct usb_device *usbdev;
241 struct urb *urb_in;
242 struct usb_endpoint_descriptor *usb_ep_in;
243 struct usb_endpoint_descriptor *usb_ep_out;
244
245 /* buffers and dma */
246 unsigned char *buf_in;
247 unsigned int len_in;
248 u8 cmd; /* MCE command type */
249 u8 rem; /* Remaining IR data bytes in packet */
250 dma_addr_t dma_in;
251 dma_addr_t dma_out;
252
253 struct {
254 u32 connected:1;
657290b6 255 u32 tx_mask_inverted:1;
66e89522
JW		 256 u32 microsoft_gen1:1;
257 u32 gen3:1;
258 u32 reserved:28;
259 } flags;
260
e23fb964 261 /* transmit support */
66e89522 262 int send_flags;
e23fb964
JW		 263 u32 carrier;
264 unsigned char tx_mask;
66e89522
JW		 265
266 char name[128];
267 char phys[64];
66e89522
JW		 268};
269
270/*
271 * MCE Device Command Strings
272 * Device command responses vary from device to device...
273 * - DEVICE_RESET resets the hardware to its default state
274 * - GET_REVISION fetches the hardware/software revision, common
275 * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
276 * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
277 * device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
278 * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
279 * ((clk / frequency) - 1)
280 * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
281 * response in the form of 9f 0c msb lsb
282 * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
283 * the form of 9f 08 bm, where bm is the bitmask
284 * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
285 * general use one or short-range learning one, in the form of
286 * 9f 14 ss, where ss is either 01 for long-range or 02 for short
287 * - SET_CARRIER_FREQ sets a new carrier mode and frequency
288 * - SET_TX_BITMASK sets the transmitter bitmask
289 * - SET_RX_TIMEOUT sets the receiver timeout
290 * - SET_RX_SENSOR sets which receiver sensor to use
291 */
292static char DEVICE_RESET[] = {0x00, 0xff, 0xaa};
293static char GET_REVISION[] = {0xff, 0x0b};
294static char GET_UNKNOWN[] = {0xff, 0x18};
295static char GET_CARRIER_FREQ[] = {0x9f, 0x07};
296static char GET_RX_TIMEOUT[] = {0x9f, 0x0d};
297static char GET_TX_BITMASK[] = {0x9f, 0x13};
298static char GET_RX_SENSOR[] = {0x9f, 0x15};
299/* sub in desired values in lower byte or bytes for full command */
300/* FIXME: make use of these for transmit.
301static char SET_CARRIER_FREQ[] = {0x9f, 0x06, 0x00, 0x00};
302static char SET_TX_BITMASK[] = {0x9f, 0x08, 0x00};
303static char SET_RX_TIMEOUT[] = {0x9f, 0x0c, 0x00, 0x00};
304static char SET_RX_SENSOR[] = {0x9f, 0x14, 0x00};
305*/
306
307static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
308 int len, bool out)
309{
310 char codes[USB_BUFLEN * 3 + 1];
311 char inout[9];
312 int i;
313 u8 cmd, subcmd, data1, data2;
314 struct device *dev = ir->dev;
657290b6 315 int idx = 0;
66e89522 316
657290b6
JW		 317 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
318 if (ir->flags.microsoft_gen1 && !out)
319 idx = 2;
66e89522 320
657290b6 321 if (len <= idx)
66e89522
JW		 322 return;
323
324 for (i = 0; i < len && i < USB_BUFLEN; i++)
325 snprintf(codes + i * 3, 4, "%02x ", buf[i] & 0xFF);
326
327 dev_info(dev, "%sx data: %s (length=%d)\n",
328 (out ? "t" : "r"), codes, len);
329
330 if (out)
331 strcpy(inout, "Request\0");
332 else
333 strcpy(inout, "Got\0");
334
657290b6
JW		 335 cmd = buf[idx] & 0xff;
336 subcmd = buf[idx + 1] & 0xff;
337 data1 = buf[idx + 2] & 0xff;
338 data2 = buf[idx + 3] & 0xff;
66e89522
JW		 339
340 switch (cmd) {
341 case 0x00:
342 if (subcmd == 0xff && data1 == 0xaa)
343 dev_info(dev, "Device reset requested\n");
344 else
345 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
346 cmd, subcmd);
347 break;
348 case 0xff:
349 switch (subcmd) {
350 case 0x0b:
351 if (len == 2)
352 dev_info(dev, "Get hw/sw rev?\n");
353 else
354 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
355 "0x%02x 0x%02x\n", data1, data2,
657290b6 356 buf[idx + 4], buf[idx + 5]);
66e89522
JW		 357 break;
358 case 0xaa:
359 dev_info(dev, "Device reset requested\n");
360 break;
361 case 0xfe:
362 dev_info(dev, "Previous command not supported\n");
363 break;
364 case 0x18:
365 case 0x1b:
366 default:
367 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
368 cmd, subcmd);
369 break;
370 }
371 break;
372 case 0x9f:
373 switch (subcmd) {
374 case 0x03:
375 dev_info(dev, "Ping\n");
376 break;
377 case 0x04:
378 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
379 data1, data2);
380 break;
381 case 0x06:
382 dev_info(dev, "%s carrier mode and freq of "
383 "0x%02x 0x%02x\n", inout, data1, data2);
384 break;
385 case 0x07:
386 dev_info(dev, "Get carrier mode and freq\n");
387 break;
388 case 0x08:
389 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
390 inout, data1);
391 break;
392 case 0x0c:
393 /* value is in units of 50us, so x*50/100 or x/2 ms */
394 dev_info(dev, "%s receive timeout of %d ms\n",
395 inout, ((data1 << 8) | data2) / 2);
396 break;
397 case 0x0d:
398 dev_info(dev, "Get receive timeout\n");
399 break;
400 case 0x13:
401 dev_info(dev, "Get transmit blaster mask\n");
402 break;
403 case 0x14:
404 dev_info(dev, "%s %s-range receive sensor in use\n",
405 inout, data1 == 0x02 ? "short" : "long");
406 break;
407 case 0x15:
408 if (len == 2)
409 dev_info(dev, "Get receive sensor\n");
410 else
411 dev_info(dev, "Received pulse count is %d\n",
412 ((data1 << 8) | data2));
413 break;
414 case 0xfe:
415 dev_info(dev, "Error! Hardware is likely wedged...\n");
416 break;
417 case 0x05:
418 case 0x09:
419 case 0x0f:
420 default:
421 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
422 cmd, subcmd);
423 break;
424 }
425 break;
426 default:
427 break;
428 }
429}
430
431static void usb_async_callback(struct urb *urb, struct pt_regs *regs)
432{
433 struct mceusb_dev *ir;
434 int len;
435
436 if (!urb)
437 return;
438
439 ir = urb->context;
440 if (ir) {
441 len = urb->actual_length;
442
443 dev_dbg(ir->dev, "callback called (status=%d len=%d)\n",
444 urb->status, len);
445
446 if (debug)
447 mceusb_dev_printdata(ir, urb->transfer_buffer,
448 len, true);
449 }
450
451}
452
453/* request incoming or send outgoing usb packet - used to initialize remote */
454static void mce_request_packet(struct mceusb_dev *ir,
455 struct usb_endpoint_descriptor *ep,
456 unsigned char *data, int size, int urb_type)
457{
458 int res;
459 struct urb *async_urb;
460 struct device *dev = ir->dev;
461 unsigned char *async_buf;
462
463 if (urb_type == MCEUSB_TX) {
464 async_urb = usb_alloc_urb(0, GFP_KERNEL);
465 if (unlikely(!async_urb)) {
466 dev_err(dev, "Error, couldn't allocate urb!\n");
467 return;
468 }
469
470 async_buf = kzalloc(size, GFP_KERNEL);
471 if (!async_buf) {
472 dev_err(dev, "Error, couldn't allocate buf!\n");
473 usb_free_urb(async_urb);
474 return;
475 }
476
477 /* outbound data */
478 usb_fill_int_urb(async_urb, ir->usbdev,
479 usb_sndintpipe(ir->usbdev, ep->bEndpointAddress),
480 async_buf, size, (usb_complete_t) usb_async_callback,
481 ir, ep->bInterval);
482 memcpy(async_buf, data, size);
483
484 } else if (urb_type == MCEUSB_RX) {
485 /* standard request */
486 async_urb = ir->urb_in;
487 ir->send_flags = RECV_FLAG_IN_PROGRESS;
488
489 } else {
490 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
491 return;
492 }
493
494 dev_dbg(dev, "receive request called (size=%#x)\n", size);
495
496 async_urb->transfer_buffer_length = size;
497 async_urb->dev = ir->usbdev;
498
499 res = usb_submit_urb(async_urb, GFP_ATOMIC);
500 if (res) {
501 dev_dbg(dev, "receive request FAILED! (res=%d)\n", res);
502 return;
503 }
504 dev_dbg(dev, "receive request complete (res=%d)\n", res);
505}
506
507static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
508{
509 mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX);
510}
511
512static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size)
513{
514 mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX);
515}
516
e23fb964
JW		 517/* Send data out the IR blaster port(s) */
518static int mceusb_tx_ir(void *priv, int *txbuf, u32 n)
519{
520 struct mceusb_dev *ir = priv;
521 int i, ret = 0;
522 int count, cmdcount = 0;
523 unsigned char *cmdbuf; /* MCE command buffer */
524 long signal_duration = 0; /* Singnal length in us */
525 struct timeval start_time, end_time;
526
527 do_gettimeofday(&start_time);
528
529 count = n / sizeof(int);
530
531 cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL);
532 if (!cmdbuf)
533 return -ENOMEM;
534
535 /* MCE tx init header */
536 cmdbuf[cmdcount++] = MCE_CONTROL_HEADER;
537 cmdbuf[cmdcount++] = 0x08;
538 cmdbuf[cmdcount++] = ir->tx_mask;
539
540 /* Generate mce packet data */
541 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
542 signal_duration += txbuf[i];
543 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
544
545 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
546
547 /* Insert mce packet header every 4th entry */
548 if ((cmdcount < MCE_CMDBUF_SIZE) &&
549 (cmdcount - MCE_TX_HEADER_LENGTH) %
550 MCE_CODE_LENGTH == 0)
551 cmdbuf[cmdcount++] = MCE_PACKET_HEADER;
552
553 /* Insert mce packet data */
554 if (cmdcount < MCE_CMDBUF_SIZE)
555 cmdbuf[cmdcount++] =
556 (txbuf[i] < MCE_PULSE_BIT ?
557 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
558 (i & 1 ? 0x00 : MCE_PULSE_BIT);
559 else {
560 ret = -EINVAL;
561 goto out;
562 }
563
564 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
565 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
566 }
567
568 /* Fix packet length in last header */
569 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
570 0x80 + (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH - 1;
571
572 /* Check if we have room for the empty packet at the end */
573 if (cmdcount >= MCE_CMDBUF_SIZE) {
574 ret = -EINVAL;
575 goto out;
576 }
577
578 /* All mce commands end with an empty packet (0x80) */
579 cmdbuf[cmdcount++] = 0x80;
580
581 /* Transmit the command to the mce device */
582 mce_async_out(ir, cmdbuf, cmdcount);
583
584 /*
585 * The lircd gap calculation expects the write function to
586 * wait the time it takes for the ircommand to be sent before
587 * it returns.
588 */
589 do_gettimeofday(&end_time);
590 signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
591 (end_time.tv_sec - start_time.tv_sec) * 1000000;
592
593 /* delay with the closest number of ticks */
594 set_current_state(TASK_INTERRUPTIBLE);
595 schedule_timeout(usecs_to_jiffies(signal_duration));
596
597out:
598 kfree(cmdbuf);
599 return ret ? ret : n;
600}
601
657290b6
JW		 602/* Sets active IR outputs -- mce devices typically (all?) have two */
603static int mceusb_set_tx_mask(void *priv, u32 mask)
604{
605 struct mceusb_dev *ir = priv;
606
607 if (ir->flags.tx_mask_inverted)
608 ir->tx_mask = (mask != 0x03 ? mask ^ 0x03 : mask) << 1;
609 else
610 ir->tx_mask = mask;
611
612 return 0;
613}
614
e23fb964
JW		 615/* Sets the send carrier frequency and mode */
616static int mceusb_set_tx_carrier(void *priv, u32 carrier)
617{
618 struct mceusb_dev *ir = priv;
619 int clk = 10000000;
620 int prescaler = 0, divisor = 0;
621 unsigned char cmdbuf[4] = { 0x9f, 0x06, 0x00, 0x00 };
622
623 /* Carrier has changed */
624 if (ir->carrier != carrier) {
625
626 if (carrier == 0) {
627 ir->carrier = carrier;
628 cmdbuf[2] = 0x01;
629 cmdbuf[3] = 0x80;
630 dev_dbg(ir->dev, "%s: disabling carrier "
631 "modulation\n", __func__);
632 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
633 return carrier;
634 }
635
636 for (prescaler = 0; prescaler < 4; ++prescaler) {
637 divisor = (clk >> (2 * prescaler)) / carrier;
638 if (divisor <= 0xFF) {
639 ir->carrier = carrier;
640 cmdbuf[2] = prescaler;
641 cmdbuf[3] = divisor;
642 dev_dbg(ir->dev, "%s: requesting %u HZ "
643 "carrier\n", __func__, carrier);
644
645 /* Transmit new carrier to mce device */
646 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
647 return carrier;
648 }
649 }
650
651 return -EINVAL;
652
653 }
654
655 return carrier;
656}
657
66e89522
JW		 658static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
659{
660 struct ir_raw_event rawir = { .pulse = false, .duration = 0 };
661 int i, start_index = 0;
d732a72d 662 u8 hdr = MCE_CONTROL_HEADER;
66e89522
JW		 663
664 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
665 if (ir->flags.microsoft_gen1)
666 start_index = 2;
667
668 for (i = start_index; i < buf_len;) {
669 if (ir->rem == 0) {
670 /* decode mce packets of the form (84),AA,BB,CC,DD */
671 /* IR data packets can span USB messages - rem */
d732a72d
JW		 672 hdr = ir->buf_in[i];
673 ir->rem = (hdr & MCE_PACKET_LENGTH_MASK);
674 ir->cmd = (hdr & ~MCE_PACKET_LENGTH_MASK);
66e89522
JW		 675 dev_dbg(ir->dev, "New data. rem: 0x%02x, cmd: 0x%02x\n",
676 ir->rem, ir->cmd);
677 i++;
678 }
679
d732a72d
JW		 680 /* don't process MCE commands */
681 if (hdr == MCE_CONTROL_HEADER || hdr == 0xff) {
66e89522
JW		 682 ir->rem = 0;
683 return;
684 }
685
686 for (; (ir->rem > 0) && (i < buf_len); i++) {
687 ir->rem--;
688
689 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
690 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
691 * MCE_TIME_UNIT * 1000;
692
693 if ((ir->buf_in[i] & MCE_PULSE_MASK) == 0x7f) {
694 if (ir->rawir.pulse == rawir.pulse)
695 ir->rawir.duration += rawir.duration;
696 else {
697 ir->rawir.duration = rawir.duration;
698 ir->rawir.pulse = rawir.pulse;
699 }
700 continue;
701 }
702 rawir.duration += ir->rawir.duration;
703 ir->rawir.duration = 0;
704 ir->rawir.pulse = rawir.pulse;
705
706 dev_dbg(ir->dev, "Storing %s with duration %d\n",
707 rawir.pulse ? "pulse" : "space",
708 rawir.duration);
709
710 ir_raw_event_store(ir->idev, &rawir);
711 }
712
713 if (ir->buf_in[i] == 0x80 || ir->buf_in[i] == 0x9f)
714 ir->rem = 0;
715
716 dev_dbg(ir->dev, "calling ir_raw_event_handle\n");
717 ir_raw_event_handle(ir->idev);
718 }
719}
720
66e89522
JW		 721static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
722{
723 struct mceusb_dev *ir;
724 int buf_len;
725
726 if (!urb)
727 return;
728
729 ir = urb->context;
730 if (!ir) {
731 usb_unlink_urb(urb);
732 return;
733 }
734
735 buf_len = urb->actual_length;
736
66e89522
JW		 737 if (debug)
738 mceusb_dev_printdata(ir, urb->transfer_buffer, buf_len, false);
739
740 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
741 ir->send_flags = SEND_FLAG_COMPLETE;
742 dev_dbg(&ir->irdev->dev, "setup answer received %d bytes\n",
743 buf_len);
744 }
745
746 switch (urb->status) {
747 /* success */
748 case 0:
749 mceusb_process_ir_data(ir, buf_len);
750 break;
751
752 case -ECONNRESET:
753 case -ENOENT:
754 case -ESHUTDOWN:
755 usb_unlink_urb(urb);
756 return;
757
758 case -EPIPE:
759 default:
760 break;
761 }
762
763 usb_submit_urb(urb, GFP_ATOMIC);
764}
765
766static void mceusb_gen1_init(struct mceusb_dev *ir)
767{
768 int i, ret;
66e89522
JW		 769 int partial = 0;
770 struct device *dev = ir->dev;
657290b6
JW		 771 char *junk, *data;
772
773 junk = kmalloc(2 * USB_BUFLEN, GFP_KERNEL);
774 if (!junk) {
775 dev_err(dev, "%s: memory allocation failed!\n", __func__);
776 return;
777 }
778
779 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
780 if (!data) {
781 dev_err(dev, "%s: memory allocation failed!\n", __func__);
782 kfree(junk);
783 return;
784 }
66e89522
JW		 785
786 /*
787 * Clear off the first few messages. These look like calibration
788 * or test data, I can't really tell. This also flushes in case
789 * we have random ir data queued up.
790 */
657290b6 791 for (i = 0; i < MCE_G1_INIT_MSGS; i++)
66e89522
JW		 792 usb_bulk_msg(ir->usbdev,
793 usb_rcvbulkpipe(ir->usbdev,
794 ir->usb_ep_in->bEndpointAddress),
657290b6 795 junk, sizeof(junk), &partial, HZ * 10);
66e89522
JW		 796
797 /* Get Status */
798 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
799 USB_REQ_GET_STATUS, USB_DIR_IN,
657290b6 800 0, 0, data, USB_CTRL_MSG_SZ, HZ * 3);
66e89522
JW		 801
802 /* ret = usb_get_status( ir->usbdev, 0, 0, data ); */
803 dev_dbg(dev, "%s - ret = %d status = 0x%x 0x%x\n", __func__,
804 ret, data[0], data[1]);
805
806 /*
807 * This is a strange one. They issue a set address to the device
808 * on the receive control pipe and expect a certain value pair back
809 */
657290b6 810 memset(data, 0, sizeof(data));
66e89522
JW		 811
812 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
813 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
657290b6 814 data, USB_CTRL_MSG_SZ, HZ * 3);
66e89522
JW		 815 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
816 dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
817 __func__, data[0], data[1]);
818
819 /* set feature: bit rate 38400 bps */
820 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
821 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
822 0xc04e, 0x0000, NULL, 0, HZ * 3);
823
824 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
825
826 /* bRequest 4: set char length to 8 bits */
827 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
828 4, USB_TYPE_VENDOR,
829 0x0808, 0x0000, NULL, 0, HZ * 3);
830 dev_dbg(dev, "%s - retB = %d\n", __func__, ret);
831
832 /* bRequest 2: set handshaking to use DTR/DSR */
833 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
834 2, USB_TYPE_VENDOR,
835 0x0000, 0x0100, NULL, 0, HZ * 3);
836 dev_dbg(dev, "%s - retC = %d\n", __func__, ret);
657290b6
JW		 837
838 kfree(data);
839 kfree(junk);
66e89522
JW		 840};
841
842static void mceusb_gen2_init(struct mceusb_dev *ir)
843{
844 int maxp = ir->len_in;
845
846 mce_sync_in(ir, NULL, maxp);
847 mce_sync_in(ir, NULL, maxp);
848
e23fb964
JW		 849 set_current_state(TASK_INTERRUPTIBLE);
850 schedule_timeout(msecs_to_jiffies(100));
851
66e89522
JW		 852 /* device reset */
853 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
854 mce_sync_in(ir, NULL, maxp);
855
856 /* get hw/sw revision? */
857 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
858 mce_sync_in(ir, NULL, maxp);
859
860 /* unknown what this actually returns... */
861 mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
862 mce_sync_in(ir, NULL, maxp);
863}
864
865static void mceusb_gen3_init(struct mceusb_dev *ir)
866{
867 int maxp = ir->len_in;
868
869 mce_sync_in(ir, NULL, maxp);
870
871 /* device reset */
872 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
873 mce_sync_in(ir, NULL, maxp);
874
875 /* get the carrier and frequency */
876 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
877 mce_sync_in(ir, NULL, maxp);
878
879 /* get the transmitter bitmask */
880 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
881 mce_sync_in(ir, NULL, maxp);
882
883 /* get receiver timeout value */
884 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
885 mce_sync_in(ir, NULL, maxp);
886
887 /* get receiver sensor setting */
888 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
889 mce_sync_in(ir, NULL, maxp);
890}
891
892static struct input_dev *mceusb_init_input_dev(struct mceusb_dev *ir)
893{
894 struct input_dev *idev;
895 struct ir_dev_props *props;
896 struct ir_input_dev *irdev;
66e89522
JW		 897 struct device *dev = ir->dev;
898 int ret = -ENODEV;
899
900 idev = input_allocate_device();
901 if (!idev) {
902 dev_err(dev, "remote input dev allocation failed\n");
903 goto idev_alloc_failed;
904 }
905
906 ret = -ENOMEM;
907 props = kzalloc(sizeof(struct ir_dev_props), GFP_KERNEL);
908 if (!props) {
909 dev_err(dev, "remote ir dev props allocation failed\n");
910 goto props_alloc_failed;
911 }
912
913 irdev = kzalloc(sizeof(struct ir_input_dev), GFP_KERNEL);
914 if (!irdev) {
915 dev_err(dev, "remote ir input dev allocation failed\n");
916 goto ir_dev_alloc_failed;
917 }
918
e23fb964 919 snprintf(ir->name, sizeof(ir->name), "Media Center Ed. eHome "
66e89522
JW		 920 "Infrared Remote Transceiver (%04x:%04x)",
921 le16_to_cpu(ir->usbdev->descriptor.idVendor),
922 le16_to_cpu(ir->usbdev->descriptor.idProduct));
923
66e89522 924 idev->name = ir->name;
66e89522
JW		 925 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
926 strlcat(ir->phys, "/input0", sizeof(ir->phys));
927 idev->phys = ir->phys;
928
66e89522
JW		 929 props->priv = ir;
930 props->driver_type = RC_DRIVER_IR_RAW;
931 props->allowed_protos = IR_TYPE_ALL;
e23fb964
JW		 932 props->s_tx_mask = mceusb_set_tx_mask;
933 props->s_tx_carrier = mceusb_set_tx_carrier;
934 props->tx_ir = mceusb_tx_ir;
66e89522
JW		 935
936 ir->props = props;
937 ir->irdev = irdev;
66e89522
JW		 938
939 input_set_drvdata(idev, irdev);
940
941 ret = ir_input_register(idev, RC_MAP_RC6_MCE, props, DRIVER_NAME);
942 if (ret < 0) {
943 dev_err(dev, "remote input device register failed\n");
944 goto irdev_failed;
945 }
946
947 return idev;
948
949irdev_failed:
66e89522
JW		 950 kfree(irdev);
951ir_dev_alloc_failed:
952 kfree(props);
953props_alloc_failed:
954 input_free_device(idev);
955idev_alloc_failed:
956 return NULL;
957}
958
959static int __devinit mceusb_dev_probe(struct usb_interface *intf,
960 const struct usb_device_id *id)
961{
962 struct usb_device *dev = interface_to_usbdev(intf);
963 struct usb_host_interface *idesc;
964 struct usb_endpoint_descriptor *ep = NULL;
965 struct usb_endpoint_descriptor *ep_in = NULL;
966 struct usb_endpoint_descriptor *ep_out = NULL;
967 struct usb_host_config *config;
968 struct mceusb_dev *ir = NULL;
d732a72d 969 int pipe, maxp, i;
66e89522
JW		 970 char buf[63], name[128] = "";
971 bool is_gen3;
972 bool is_microsoft_gen1;
657290b6 973 bool tx_mask_inverted;
66e89522
JW		 974
975 dev_dbg(&intf->dev, ": %s called\n", __func__);
976
977 usb_reset_device(dev);
978
979 config = dev->actconfig;
980 idesc = intf->cur_altsetting;
981
982 is_gen3 = usb_match_id(intf, gen3_list) ? 1 : 0;
983 is_microsoft_gen1 = usb_match_id(intf, microsoft_gen1_list) ? 1 : 0;
657290b6 984 tx_mask_inverted = usb_match_id(intf, std_tx_mask_list) ? 0 : 1;
66e89522
JW		 985
986 /* step through the endpoints to find first bulk in and out endpoint */
987 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
988 ep = &idesc->endpoint[i].desc;
989
990 if ((ep_in == NULL)
991 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
992 == USB_DIR_IN)
993 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
994 == USB_ENDPOINT_XFER_BULK)
995 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
996 == USB_ENDPOINT_XFER_INT))) {
997
66e89522
JW		 998 ep_in = ep;
999 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
d732a72d
JW		 1000 ep_in->bInterval = 1;
1001 dev_dbg(&intf->dev, ": acceptable inbound endpoint "
1002 "found\n");
66e89522
JW		 1003 }
1004
1005 if ((ep_out == NULL)
1006 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1007 == USB_DIR_OUT)
1008 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1009 == USB_ENDPOINT_XFER_BULK)
1010 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1011 == USB_ENDPOINT_XFER_INT))) {
1012
66e89522
JW		 1013 ep_out = ep;
1014 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
d732a72d
JW		 1015 ep_out->bInterval = 1;
1016 dev_dbg(&intf->dev, ": acceptable outbound endpoint "
1017 "found\n");
66e89522
JW		 1018 }
1019 }
1020 if (ep_in == NULL) {
1021 dev_dbg(&intf->dev, ": inbound and/or endpoint not found\n");
1022 return -ENODEV;
1023 }
1024
1025 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1026 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1027
1028 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1029 if (!ir)
1030 goto mem_alloc_fail;
1031
1032 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1033 if (!ir->buf_in)
1034 goto buf_in_alloc_fail;
1035
1036 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1037 if (!ir->urb_in)
1038 goto urb_in_alloc_fail;
1039
1040 ir->usbdev = dev;
1041 ir->dev = &intf->dev;
1042 ir->len_in = maxp;
1043 ir->flags.gen3 = is_gen3;
1044 ir->flags.microsoft_gen1 = is_microsoft_gen1;
657290b6 1045 ir->flags.tx_mask_inverted = tx_mask_inverted;
66e89522
JW		 1046
1047 /* Saving usb interface data for use by the transmitter routine */
1048 ir->usb_ep_in = ep_in;
1049 ir->usb_ep_out = ep_out;
1050
1051 if (dev->descriptor.iManufacturer
1052 && usb_string(dev, dev->descriptor.iManufacturer,
1053 buf, sizeof(buf)) > 0)
1054 strlcpy(name, buf, sizeof(name));
1055 if (dev->descriptor.iProduct
1056 && usb_string(dev, dev->descriptor.iProduct,
1057 buf, sizeof(buf)) > 0)
1058 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1059 " %s", buf);
1060
1061 ir->idev = mceusb_init_input_dev(ir);
1062 if (!ir->idev)
1063 goto input_dev_fail;
1064
1065 /* inbound data */
1066 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
1067 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
1068 ir->urb_in->transfer_dma = ir->dma_in;
1069 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1070
66e89522
JW		 1071 /* initialize device */
1072 if (ir->flags.gen3)
1073 mceusb_gen3_init(ir);
1074
1075 else if (ir->flags.microsoft_gen1)
1076 mceusb_gen1_init(ir);
1077
1078 else
1079 mceusb_gen2_init(ir);
1080
1081 mce_sync_in(ir, NULL, maxp);
1082
657290b6 1083 mceusb_set_tx_mask(ir, MCE_DEFAULT_TX_MASK);
66e89522
JW		 1084
1085 usb_set_intfdata(intf, ir);
1086
1087 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
1088 dev->bus->busnum, dev->devnum);
1089
1090 return 0;
1091
1092 /* Error-handling path */
1093input_dev_fail:
1094 usb_free_urb(ir->urb_in);
1095urb_in_alloc_fail:
1096 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1097buf_in_alloc_fail:
1098 kfree(ir);
1099mem_alloc_fail:
1100 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1101
1102 return -ENOMEM;
1103}
1104
1105
1106static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1107{
1108 struct usb_device *dev = interface_to_usbdev(intf);
1109 struct mceusb_dev *ir = usb_get_intfdata(intf);
1110
1111 usb_set_intfdata(intf, NULL);
1112
1113 if (!ir)
1114 return;
1115
1116 ir->usbdev = NULL;
bd3881b1 1117 ir_input_unregister(ir->idev);
66e89522
JW		 1118 usb_kill_urb(ir->urb_in);
1119 usb_free_urb(ir->urb_in);
1120 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1121
1122 kfree(ir);
1123}
1124
1125static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1126{
1127 struct mceusb_dev *ir = usb_get_intfdata(intf);
1128 dev_info(ir->dev, "suspend\n");
1129 usb_kill_urb(ir->urb_in);
1130 return 0;
1131}
1132
1133static int mceusb_dev_resume(struct usb_interface *intf)
1134{
1135 struct mceusb_dev *ir = usb_get_intfdata(intf);
1136 dev_info(ir->dev, "resume\n");
1137 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1138 return -EIO;
1139 return 0;
1140}
1141
1142static struct usb_driver mceusb_dev_driver = {
1143 .name = DRIVER_NAME,
1144 .probe = mceusb_dev_probe,
1145 .disconnect = mceusb_dev_disconnect,
1146 .suspend = mceusb_dev_suspend,
1147 .resume = mceusb_dev_resume,
1148 .reset_resume = mceusb_dev_resume,
1149 .id_table = mceusb_dev_table
1150};
1151
1152static int __init mceusb_dev_init(void)
1153{
1154 int ret;
1155
1156 ret = usb_register(&mceusb_dev_driver);
1157 if (ret < 0)
1158 printk(KERN_ERR DRIVER_NAME
1159 ": usb register failed, result = %d\n", ret);
1160
1161 return ret;
1162}
1163
1164static void __exit mceusb_dev_exit(void)
1165{
1166 usb_deregister(&mceusb_dev_driver);
1167}
1168
1169module_init(mceusb_dev_init);
1170module_exit(mceusb_dev_exit);
1171
1172MODULE_DESCRIPTION(DRIVER_DESC);
1173MODULE_AUTHOR(DRIVER_AUTHOR);
1174MODULE_LICENSE("GPL");
1175MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1176
1177module_param(debug, bool, S_IRUGO | S_IWUSR);
1178MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux kernel - Deliverables
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