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-rw-r--r--drivers/media/IR/Kconfig12
-rw-r--r--drivers/media/IR/Makefile1
-rw-r--r--drivers/media/IR/mceusb.c1085
3 files changed, 1098 insertions, 0 deletions
diff --git a/drivers/media/IR/Kconfig b/drivers/media/IR/Kconfig
index d22a8ec523fc..07fca4c5165a 100644
--- a/drivers/media/IR/Kconfig
+++ b/drivers/media/IR/Kconfig
@@ -68,3 +68,15 @@ config IR_IMON
68 68
69 To compile this driver as a module, choose M here: the 69 To compile this driver as a module, choose M here: the
70 module will be called imon. 70 module will be called imon.
71
72config IR_MCEUSB
73 tristate "Windows Media Center Ed. eHome Infrared Transceiver"
74 depends on USB_ARCH_HAS_HCD
75 depends on IR_CORE
76 select USB
77 ---help---
78 Say Y here if you want to use a Windows Media Center Edition
79 eHome Infrared Transceiver.
80
81 To compile this driver as a module, choose M here: the
82 module will be called mceusb.
diff --git a/drivers/media/IR/Makefile b/drivers/media/IR/Makefile
index b998fcced2e4..b43fe36d88b2 100644
--- a/drivers/media/IR/Makefile
+++ b/drivers/media/IR/Makefile
@@ -13,3 +13,4 @@ obj-$(CONFIG_IR_SONY_DECODER) += ir-sony-decoder.o
13 13
14# stand-alone IR receivers/transmitters 14# stand-alone IR receivers/transmitters
15obj-$(CONFIG_IR_IMON) += imon.o 15obj-$(CONFIG_IR_IMON) += imon.o
16obj-$(CONFIG_IR_MCEUSB) += mceusb.o
diff --git a/drivers/media/IR/mceusb.c b/drivers/media/IR/mceusb.c
new file mode 100644
index 000000000000..fe150911a1c4
--- /dev/null
+++ b/drivers/media/IR/mceusb.c
@@ -0,0 +1,1085 @@
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 * TODO:
19 * - add rc-core transmit support, once available
20 * - enable support for forthcoming ir-lirc-codec interface
21 *
22 *
23 * This program is free software; you can redistribute it and/or modify
24 * it under the terms of the GNU General Public License as published by
25 * the Free Software Foundation; either version 2 of the License, or
26 * (at your option) any later version.
27 *
28 * This program is distributed in the hope that it will be useful,
29 * but WITHOUT ANY WARRANTY; without even the implied warranty of
30 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 * GNU General Public License for more details.
32 *
33 * You should have received a copy of the GNU General Public License
34 * along with this program; if not, write to the Free Software
35 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
36 *
37 */
38
39#include <linux/device.h>
40#include <linux/module.h>
41#include <linux/slab.h>
42#include <linux/usb.h>
43#include <linux/input.h>
44#include <media/ir-core.h>
45#include <media/ir-common.h>
46
47#define DRIVER_VERSION "1.91"
48#define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>"
49#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
50 "device driver"
51#define DRIVER_NAME "mceusb"
52
53#define USB_BUFLEN 32 /* USB reception buffer length */
54#define IRBUF_SIZE 256 /* IR work buffer length */
55
56/* MCE constants */
57#define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */
58#define MCE_TIME_UNIT 50 /* Approx 50us resolution */
59#define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */
60#define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */
61#define MCE_PACKET_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */
62#define MCE_CONTROL_HEADER 0x9F /* MCE status header */
63#define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */
64#define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */
65#define MCE_DEFAULT_TX_MASK 0x03 /* Val opts: TX1=0x01, TX2=0x02, ALL=0x03 */
66#define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */
67#define MCE_PULSE_MASK 0x7F /* Pulse mask */
68#define MCE_MAX_PULSE_LENGTH 0x7F /* Longest transmittable pulse symbol */
69#define MCE_PACKET_LENGTH_MASK 0xF /* Packet length mask */
70
71
72/* module parameters */
73#ifdef CONFIG_USB_DEBUG
74static int debug = 1;
75#else
76static int debug;
77#endif
78
79/* general constants */
80#define SEND_FLAG_IN_PROGRESS 1
81#define SEND_FLAG_COMPLETE 2
82#define RECV_FLAG_IN_PROGRESS 3
83#define RECV_FLAG_COMPLETE 4
84
85#define MCEUSB_RX 1
86#define MCEUSB_TX 2
87
88#define VENDOR_PHILIPS 0x0471
89#define VENDOR_SMK 0x0609
90#define VENDOR_TATUNG 0x1460
91#define VENDOR_GATEWAY 0x107b
92#define VENDOR_SHUTTLE 0x1308
93#define VENDOR_SHUTTLE2 0x051c
94#define VENDOR_MITSUMI 0x03ee
95#define VENDOR_TOPSEED 0x1784
96#define VENDOR_RICAVISION 0x179d
97#define VENDOR_ITRON 0x195d
98#define VENDOR_FIC 0x1509
99#define VENDOR_LG 0x043e
100#define VENDOR_MICROSOFT 0x045e
101#define VENDOR_FORMOSA 0x147a
102#define VENDOR_FINTEK 0x1934
103#define VENDOR_PINNACLE 0x2304
104#define VENDOR_ECS 0x1019
105#define VENDOR_WISTRON 0x0fb8
106#define VENDOR_COMPRO 0x185b
107#define VENDOR_NORTHSTAR 0x04eb
108#define VENDOR_REALTEK 0x0bda
109#define VENDOR_TIVO 0x105a
110
111static struct usb_device_id mceusb_dev_table[] = {
112 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
113 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) },
114 /* Philips Infrared Transceiver - Sahara branded */
115 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
116 /* Philips Infrared Transceiver - HP branded */
117 { USB_DEVICE(VENDOR_PHILIPS, 0x060c) },
118 /* Philips SRM5100 */
119 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
120 /* Philips Infrared Transceiver - Omaura */
121 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
122 /* Philips Infrared Transceiver - Spinel plus */
123 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
124 /* Philips eHome Infrared Transceiver */
125 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
126 /* Realtek MCE IR Receiver */
127 { USB_DEVICE(VENDOR_REALTEK, 0x0161) },
128 /* SMK/Toshiba G83C0004D410 */
129 { USB_DEVICE(VENDOR_SMK, 0x031d) },
130 /* SMK eHome Infrared Transceiver (Sony VAIO) */
131 { USB_DEVICE(VENDOR_SMK, 0x0322) },
132 /* bundled with Hauppauge PVR-150 */
133 { USB_DEVICE(VENDOR_SMK, 0x0334) },
134 /* SMK eHome Infrared Transceiver */
135 { USB_DEVICE(VENDOR_SMK, 0x0338) },
136 /* Tatung eHome Infrared Transceiver */
137 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
138 /* Shuttle eHome Infrared Transceiver */
139 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
140 /* Shuttle eHome Infrared Transceiver */
141 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
142 /* Gateway eHome Infrared Transceiver */
143 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
144 /* Mitsumi */
145 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
146 /* Topseed eHome Infrared Transceiver */
147 { USB_DEVICE(VENDOR_TOPSEED, 0x0001) },
148 /* Topseed HP eHome Infrared Transceiver */
149 { USB_DEVICE(VENDOR_TOPSEED, 0x0006) },
150 /* Topseed eHome Infrared Transceiver */
151 { USB_DEVICE(VENDOR_TOPSEED, 0x0007) },
152 /* Topseed eHome Infrared Transceiver */
153 { USB_DEVICE(VENDOR_TOPSEED, 0x0008) },
154 /* Topseed eHome Infrared Transceiver */
155 { USB_DEVICE(VENDOR_TOPSEED, 0x000a) },
156 /* Topseed eHome Infrared Transceiver */
157 { USB_DEVICE(VENDOR_TOPSEED, 0x0011) },
158 /* Ricavision internal Infrared Transceiver */
159 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
160 /* Itron ione Libra Q-11 */
161 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
162 /* FIC eHome Infrared Transceiver */
163 { USB_DEVICE(VENDOR_FIC, 0x9242) },
164 /* LG eHome Infrared Transceiver */
165 { USB_DEVICE(VENDOR_LG, 0x9803) },
166 /* Microsoft MCE Infrared Transceiver */
167 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
168 /* Formosa eHome Infrared Transceiver */
169 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
170 /* Formosa21 / eHome Infrared Receiver */
171 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
172 /* Formosa aim / Trust MCE Infrared Receiver */
173 { USB_DEVICE(VENDOR_FORMOSA, 0xe017) },
174 /* Formosa Industrial Computing / Beanbag Emulation Device */
175 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
176 /* Formosa21 / eHome Infrared Receiver */
177 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
178 /* Formosa Industrial Computing AIM IR605/A */
179 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
180 /* Formosa Industrial Computing */
181 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
182 /* Fintek eHome Infrared Transceiver */
183 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
184 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
185 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
186 /* Pinnacle Remote Kit */
187 { USB_DEVICE(VENDOR_PINNACLE, 0x0225) },
188 /* Elitegroup Computer Systems IR */
189 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
190 /* Wistron Corp. eHome Infrared Receiver */
191 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
192 /* Compro K100 */
193 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
194 /* Compro K100 v2 */
195 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
196 /* Northstar Systems, Inc. eHome Infrared Transceiver */
197 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
198 /* TiVo PC IR Receiver */
199 { USB_DEVICE(VENDOR_TIVO, 0x2000) },
200 /* Terminating entry */
201 { }
202};
203
204static struct usb_device_id gen3_list[] = {
205 { USB_DEVICE(VENDOR_PINNACLE, 0x0225) },
206 { USB_DEVICE(VENDOR_TOPSEED, 0x0008) },
207 {}
208};
209
210static struct usb_device_id pinnacle_list[] = {
211 { USB_DEVICE(VENDOR_PINNACLE, 0x0225) },
212 {}
213};
214
215static struct usb_device_id microsoft_gen1_list[] = {
216 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) },
217 {}
218};
219
220/* data structure for each usb transceiver */
221struct mceusb_dev {
222 /* ir-core bits */
223 struct ir_input_dev *irdev;
224 struct ir_dev_props *props;
225 struct ir_input_state *state;
226 struct ir_raw_event rawir;
227
228 /* core device bits */
229 struct device *dev;
230 struct input_dev *idev;
231
232 /* usb */
233 struct usb_device *usbdev;
234 struct urb *urb_in;
235 struct usb_endpoint_descriptor *usb_ep_in;
236 struct usb_endpoint_descriptor *usb_ep_out;
237
238 /* buffers and dma */
239 unsigned char *buf_in;
240 unsigned int len_in;
241 u8 cmd; /* MCE command type */
242 u8 rem; /* Remaining IR data bytes in packet */
243 dma_addr_t dma_in;
244 dma_addr_t dma_out;
245
246 struct {
247 u32 connected:1;
248 u32 def_xmit_mask_set:1;
249 u32 microsoft_gen1:1;
250 u32 gen3:1;
251 u32 reserved:28;
252 } flags;
253
254 /* handle sending (init strings) */
255 int send_flags;
256 int carrier;
257
258 char name[128];
259 char phys[64];
260
261 unsigned char def_xmit_mask;
262 unsigned char cur_xmit_mask;
263};
264
265/*
266 * MCE Device Command Strings
267 * Device command responses vary from device to device...
268 * - DEVICE_RESET resets the hardware to its default state
269 * - GET_REVISION fetches the hardware/software revision, common
270 * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
271 * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
272 * device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
273 * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
274 * ((clk / frequency) - 1)
275 * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
276 * response in the form of 9f 0c msb lsb
277 * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
278 * the form of 9f 08 bm, where bm is the bitmask
279 * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
280 * general use one or short-range learning one, in the form of
281 * 9f 14 ss, where ss is either 01 for long-range or 02 for short
282 * - SET_CARRIER_FREQ sets a new carrier mode and frequency
283 * - SET_TX_BITMASK sets the transmitter bitmask
284 * - SET_RX_TIMEOUT sets the receiver timeout
285 * - SET_RX_SENSOR sets which receiver sensor to use
286 */
287static char DEVICE_RESET[] = {0x00, 0xff, 0xaa};
288static char GET_REVISION[] = {0xff, 0x0b};
289static char GET_UNKNOWN[] = {0xff, 0x18};
290static char GET_CARRIER_FREQ[] = {0x9f, 0x07};
291static char GET_RX_TIMEOUT[] = {0x9f, 0x0d};
292static char GET_TX_BITMASK[] = {0x9f, 0x13};
293static char GET_RX_SENSOR[] = {0x9f, 0x15};
294/* sub in desired values in lower byte or bytes for full command */
295/* FIXME: make use of these for transmit.
296static char SET_CARRIER_FREQ[] = {0x9f, 0x06, 0x00, 0x00};
297static char SET_TX_BITMASK[] = {0x9f, 0x08, 0x00};
298static char SET_RX_TIMEOUT[] = {0x9f, 0x0c, 0x00, 0x00};
299static char SET_RX_SENSOR[] = {0x9f, 0x14, 0x00};
300*/
301
302static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
303 int len, bool out)
304{
305 char codes[USB_BUFLEN * 3 + 1];
306 char inout[9];
307 int i;
308 u8 cmd, subcmd, data1, data2;
309 struct device *dev = ir->dev;
310
311 if (len <= 0)
312 return;
313
314 if (ir->flags.microsoft_gen1 && len <= 2)
315 return;
316
317 for (i = 0; i < len && i < USB_BUFLEN; i++)
318 snprintf(codes + i * 3, 4, "%02x ", buf[i] & 0xFF);
319
320 dev_info(dev, "%sx data: %s (length=%d)\n",
321 (out ? "t" : "r"), codes, len);
322
323 if (out)
324 strcpy(inout, "Request\0");
325 else
326 strcpy(inout, "Got\0");
327
328 cmd = buf[0] & 0xff;
329 subcmd = buf[1] & 0xff;
330 data1 = buf[2] & 0xff;
331 data2 = buf[3] & 0xff;
332
333 switch (cmd) {
334 case 0x00:
335 if (subcmd == 0xff && data1 == 0xaa)
336 dev_info(dev, "Device reset requested\n");
337 else
338 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
339 cmd, subcmd);
340 break;
341 case 0xff:
342 switch (subcmd) {
343 case 0x0b:
344 if (len == 2)
345 dev_info(dev, "Get hw/sw rev?\n");
346 else
347 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
348 "0x%02x 0x%02x\n", data1, data2,
349 buf[4], buf[5]);
350 break;
351 case 0xaa:
352 dev_info(dev, "Device reset requested\n");
353 break;
354 case 0xfe:
355 dev_info(dev, "Previous command not supported\n");
356 break;
357 case 0x18:
358 case 0x1b:
359 default:
360 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
361 cmd, subcmd);
362 break;
363 }
364 break;
365 case 0x9f:
366 switch (subcmd) {
367 case 0x03:
368 dev_info(dev, "Ping\n");
369 break;
370 case 0x04:
371 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
372 data1, data2);
373 break;
374 case 0x06:
375 dev_info(dev, "%s carrier mode and freq of "
376 "0x%02x 0x%02x\n", inout, data1, data2);
377 break;
378 case 0x07:
379 dev_info(dev, "Get carrier mode and freq\n");
380 break;
381 case 0x08:
382 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
383 inout, data1);
384 break;
385 case 0x0c:
386 /* value is in units of 50us, so x*50/100 or x/2 ms */
387 dev_info(dev, "%s receive timeout of %d ms\n",
388 inout, ((data1 << 8) | data2) / 2);
389 break;
390 case 0x0d:
391 dev_info(dev, "Get receive timeout\n");
392 break;
393 case 0x13:
394 dev_info(dev, "Get transmit blaster mask\n");
395 break;
396 case 0x14:
397 dev_info(dev, "%s %s-range receive sensor in use\n",
398 inout, data1 == 0x02 ? "short" : "long");
399 break;
400 case 0x15:
401 if (len == 2)
402 dev_info(dev, "Get receive sensor\n");
403 else
404 dev_info(dev, "Received pulse count is %d\n",
405 ((data1 << 8) | data2));
406 break;
407 case 0xfe:
408 dev_info(dev, "Error! Hardware is likely wedged...\n");
409 break;
410 case 0x05:
411 case 0x09:
412 case 0x0f:
413 default:
414 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
415 cmd, subcmd);
416 break;
417 }
418 break;
419 default:
420 break;
421 }
422}
423
424static void usb_async_callback(struct urb *urb, struct pt_regs *regs)
425{
426 struct mceusb_dev *ir;
427 int len;
428
429 if (!urb)
430 return;
431
432 ir = urb->context;
433 if (ir) {
434 len = urb->actual_length;
435
436 dev_dbg(ir->dev, "callback called (status=%d len=%d)\n",
437 urb->status, len);
438
439 if (debug)
440 mceusb_dev_printdata(ir, urb->transfer_buffer,
441 len, true);
442 }
443
444}
445
446/* request incoming or send outgoing usb packet - used to initialize remote */
447static void mce_request_packet(struct mceusb_dev *ir,
448 struct usb_endpoint_descriptor *ep,
449 unsigned char *data, int size, int urb_type)
450{
451 int res;
452 struct urb *async_urb;
453 struct device *dev = ir->dev;
454 unsigned char *async_buf;
455
456 if (urb_type == MCEUSB_TX) {
457 async_urb = usb_alloc_urb(0, GFP_KERNEL);
458 if (unlikely(!async_urb)) {
459 dev_err(dev, "Error, couldn't allocate urb!\n");
460 return;
461 }
462
463 async_buf = kzalloc(size, GFP_KERNEL);
464 if (!async_buf) {
465 dev_err(dev, "Error, couldn't allocate buf!\n");
466 usb_free_urb(async_urb);
467 return;
468 }
469
470 /* outbound data */
471 usb_fill_int_urb(async_urb, ir->usbdev,
472 usb_sndintpipe(ir->usbdev, ep->bEndpointAddress),
473 async_buf, size, (usb_complete_t) usb_async_callback,
474 ir, ep->bInterval);
475 memcpy(async_buf, data, size);
476
477 } else if (urb_type == MCEUSB_RX) {
478 /* standard request */
479 async_urb = ir->urb_in;
480 ir->send_flags = RECV_FLAG_IN_PROGRESS;
481
482 } else {
483 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
484 return;
485 }
486
487 dev_dbg(dev, "receive request called (size=%#x)\n", size);
488
489 async_urb->transfer_buffer_length = size;
490 async_urb->dev = ir->usbdev;
491
492 res = usb_submit_urb(async_urb, GFP_ATOMIC);
493 if (res) {
494 dev_dbg(dev, "receive request FAILED! (res=%d)\n", res);
495 return;
496 }
497 dev_dbg(dev, "receive request complete (res=%d)\n", res);
498}
499
500static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
501{
502 mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX);
503}
504
505static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size)
506{
507 mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX);
508}
509
510static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
511{
512 struct ir_raw_event rawir = { .pulse = false, .duration = 0 };
513 int i, start_index = 0;
514
515 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
516 if (ir->flags.microsoft_gen1)
517 start_index = 2;
518
519 for (i = start_index; i < buf_len;) {
520 if (ir->rem == 0) {
521 /* decode mce packets of the form (84),AA,BB,CC,DD */
522 /* IR data packets can span USB messages - rem */
523 ir->rem = (ir->buf_in[i] & MCE_PACKET_LENGTH_MASK);
524 ir->cmd = (ir->buf_in[i] & ~MCE_PACKET_LENGTH_MASK);
525 dev_dbg(ir->dev, "New data. rem: 0x%02x, cmd: 0x%02x\n",
526 ir->rem, ir->cmd);
527 i++;
528 }
529
530 /* Only cmd 0x8<bytes> is IR data, don't process MCE commands */
531 if (ir->cmd != 0x80) {
532 ir->rem = 0;
533 return;
534 }
535
536 for (; (ir->rem > 0) && (i < buf_len); i++) {
537 ir->rem--;
538
539 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
540 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
541 * MCE_TIME_UNIT * 1000;
542
543 if ((ir->buf_in[i] & MCE_PULSE_MASK) == 0x7f) {
544 if (ir->rawir.pulse == rawir.pulse)
545 ir->rawir.duration += rawir.duration;
546 else {
547 ir->rawir.duration = rawir.duration;
548 ir->rawir.pulse = rawir.pulse;
549 }
550 continue;
551 }
552 rawir.duration += ir->rawir.duration;
553 ir->rawir.duration = 0;
554 ir->rawir.pulse = rawir.pulse;
555
556 dev_dbg(ir->dev, "Storing %s with duration %d\n",
557 rawir.pulse ? "pulse" : "space",
558 rawir.duration);
559
560 ir_raw_event_store(ir->idev, &rawir);
561 }
562
563 if (ir->buf_in[i] == 0x80 || ir->buf_in[i] == 0x9f)
564 ir->rem = 0;
565
566 dev_dbg(ir->dev, "calling ir_raw_event_handle\n");
567 ir_raw_event_handle(ir->idev);
568 }
569}
570
571static void mceusb_set_default_xmit_mask(struct urb *urb)
572{
573 struct mceusb_dev *ir = urb->context;
574 char *buffer = urb->transfer_buffer;
575 u8 cmd, subcmd, def_xmit_mask;
576
577 cmd = buffer[0] & 0xff;
578 subcmd = buffer[1] & 0xff;
579
580 if (cmd == 0x9f && subcmd == 0x08) {
581 def_xmit_mask = buffer[2] & 0xff;
582 dev_dbg(ir->dev, "%s: setting xmit mask to 0x%02x\n",
583 __func__, def_xmit_mask);
584 ir->def_xmit_mask = def_xmit_mask;
585 ir->flags.def_xmit_mask_set = 1;
586 }
587}
588
589static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
590{
591 struct mceusb_dev *ir;
592 int buf_len;
593
594 if (!urb)
595 return;
596
597 ir = urb->context;
598 if (!ir) {
599 usb_unlink_urb(urb);
600 return;
601 }
602
603 buf_len = urb->actual_length;
604
605 if (!ir->flags.def_xmit_mask_set)
606 mceusb_set_default_xmit_mask(urb);
607
608 if (debug)
609 mceusb_dev_printdata(ir, urb->transfer_buffer, buf_len, false);
610
611 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
612 ir->send_flags = SEND_FLAG_COMPLETE;
613 dev_dbg(&ir->irdev->dev, "setup answer received %d bytes\n",
614 buf_len);
615 }
616
617 switch (urb->status) {
618 /* success */
619 case 0:
620 mceusb_process_ir_data(ir, buf_len);
621 break;
622
623 case -ECONNRESET:
624 case -ENOENT:
625 case -ESHUTDOWN:
626 usb_unlink_urb(urb);
627 return;
628
629 case -EPIPE:
630 default:
631 break;
632 }
633
634 usb_submit_urb(urb, GFP_ATOMIC);
635}
636
637static void mceusb_gen1_init(struct mceusb_dev *ir)
638{
639 int i, ret;
640 char junk[64], data[8];
641 int partial = 0;
642 struct device *dev = ir->dev;
643
644 /*
645 * Clear off the first few messages. These look like calibration
646 * or test data, I can't really tell. This also flushes in case
647 * we have random ir data queued up.
648 */
649 for (i = 0; i < 40; i++)
650 usb_bulk_msg(ir->usbdev,
651 usb_rcvbulkpipe(ir->usbdev,
652 ir->usb_ep_in->bEndpointAddress),
653 junk, 64, &partial, HZ * 10);
654
655 memset(data, 0, 8);
656
657 /* Get Status */
658 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
659 USB_REQ_GET_STATUS, USB_DIR_IN,
660 0, 0, data, 2, HZ * 3);
661
662 /* ret = usb_get_status( ir->usbdev, 0, 0, data ); */
663 dev_dbg(dev, "%s - ret = %d status = 0x%x 0x%x\n", __func__,
664 ret, data[0], data[1]);
665
666 /*
667 * This is a strange one. They issue a set address to the device
668 * on the receive control pipe and expect a certain value pair back
669 */
670 memset(data, 0, 8);
671
672 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
673 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
674 data, 2, HZ * 3);
675 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
676 dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
677 __func__, data[0], data[1]);
678
679 /* set feature: bit rate 38400 bps */
680 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
681 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
682 0xc04e, 0x0000, NULL, 0, HZ * 3);
683
684 dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
685
686 /* bRequest 4: set char length to 8 bits */
687 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
688 4, USB_TYPE_VENDOR,
689 0x0808, 0x0000, NULL, 0, HZ * 3);
690 dev_dbg(dev, "%s - retB = %d\n", __func__, ret);
691
692 /* bRequest 2: set handshaking to use DTR/DSR */
693 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
694 2, USB_TYPE_VENDOR,
695 0x0000, 0x0100, NULL, 0, HZ * 3);
696 dev_dbg(dev, "%s - retC = %d\n", __func__, ret);
697};
698
699static void mceusb_gen2_init(struct mceusb_dev *ir)
700{
701 int maxp = ir->len_in;
702
703 mce_sync_in(ir, NULL, maxp);
704 mce_sync_in(ir, NULL, maxp);
705
706 /* device reset */
707 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
708 mce_sync_in(ir, NULL, maxp);
709
710 /* get hw/sw revision? */
711 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
712 mce_sync_in(ir, NULL, maxp);
713
714 /* unknown what this actually returns... */
715 mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
716 mce_sync_in(ir, NULL, maxp);
717}
718
719static void mceusb_gen3_init(struct mceusb_dev *ir)
720{
721 int maxp = ir->len_in;
722
723 mce_sync_in(ir, NULL, maxp);
724
725 /* device reset */
726 mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
727 mce_sync_in(ir, NULL, maxp);
728
729 /* get the carrier and frequency */
730 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
731 mce_sync_in(ir, NULL, maxp);
732
733 /* get the transmitter bitmask */
734 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
735 mce_sync_in(ir, NULL, maxp);
736
737 /* get receiver timeout value */
738 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
739 mce_sync_in(ir, NULL, maxp);
740
741 /* get receiver sensor setting */
742 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
743 mce_sync_in(ir, NULL, maxp);
744}
745
746static struct input_dev *mceusb_init_input_dev(struct mceusb_dev *ir)
747{
748 struct input_dev *idev;
749 struct ir_dev_props *props;
750 struct ir_input_dev *irdev;
751 struct ir_input_state *state;
752 struct device *dev = ir->dev;
753 int ret = -ENODEV;
754
755 idev = input_allocate_device();
756 if (!idev) {
757 dev_err(dev, "remote input dev allocation failed\n");
758 goto idev_alloc_failed;
759 }
760
761 ret = -ENOMEM;
762 props = kzalloc(sizeof(struct ir_dev_props), GFP_KERNEL);
763 if (!props) {
764 dev_err(dev, "remote ir dev props allocation failed\n");
765 goto props_alloc_failed;
766 }
767
768 irdev = kzalloc(sizeof(struct ir_input_dev), GFP_KERNEL);
769 if (!irdev) {
770 dev_err(dev, "remote ir input dev allocation failed\n");
771 goto ir_dev_alloc_failed;
772 }
773
774 state = kzalloc(sizeof(struct ir_input_state), GFP_KERNEL);
775 if (!state) {
776 dev_err(dev, "remote ir state allocation failed\n");
777 goto ir_state_alloc_failed;
778 }
779
780 snprintf(ir->name, sizeof(ir->name), "Media Center Edition eHome "
781 "Infrared Remote Transceiver (%04x:%04x)",
782 le16_to_cpu(ir->usbdev->descriptor.idVendor),
783 le16_to_cpu(ir->usbdev->descriptor.idProduct));
784
785 ret = ir_input_init(idev, state, IR_TYPE_RC6);
786 if (ret < 0)
787 goto irdev_failed;
788
789 idev->name = ir->name;
790
791 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
792 strlcat(ir->phys, "/input0", sizeof(ir->phys));
793 idev->phys = ir->phys;
794
795 /* FIXME: no EV_REP (yet), we may need our own auto-repeat handling */
796 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
797
798 idev->keybit[BIT_WORD(BTN_MOUSE)] =
799 BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
800 idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
801 BIT_MASK(REL_WHEEL);
802
803 props->priv = ir;
804 props->driver_type = RC_DRIVER_IR_RAW;
805 props->allowed_protos = IR_TYPE_ALL;
806
807 ir->props = props;
808 ir->irdev = irdev;
809 ir->state = state;
810
811 input_set_drvdata(idev, irdev);
812
813 ret = ir_input_register(idev, RC_MAP_RC6_MCE, props, DRIVER_NAME);
814 if (ret < 0) {
815 dev_err(dev, "remote input device register failed\n");
816 goto irdev_failed;
817 }
818
819 return idev;
820
821irdev_failed:
822 kfree(state);
823ir_state_alloc_failed:
824 kfree(irdev);
825ir_dev_alloc_failed:
826 kfree(props);
827props_alloc_failed:
828 input_free_device(idev);
829idev_alloc_failed:
830 return NULL;
831}
832
833static int __devinit mceusb_dev_probe(struct usb_interface *intf,
834 const struct usb_device_id *id)
835{
836 struct usb_device *dev = interface_to_usbdev(intf);
837 struct usb_host_interface *idesc;
838 struct usb_endpoint_descriptor *ep = NULL;
839 struct usb_endpoint_descriptor *ep_in = NULL;
840 struct usb_endpoint_descriptor *ep_out = NULL;
841 struct usb_host_config *config;
842 struct mceusb_dev *ir = NULL;
843 int pipe, maxp;
844 int i, ret;
845 char buf[63], name[128] = "";
846 bool is_gen3;
847 bool is_microsoft_gen1;
848 bool is_pinnacle;
849
850 dev_dbg(&intf->dev, ": %s called\n", __func__);
851
852 usb_reset_device(dev);
853
854 config = dev->actconfig;
855 idesc = intf->cur_altsetting;
856
857 is_gen3 = usb_match_id(intf, gen3_list) ? 1 : 0;
858 is_microsoft_gen1 = usb_match_id(intf, microsoft_gen1_list) ? 1 : 0;
859 is_pinnacle = usb_match_id(intf, pinnacle_list) ? 1 : 0;
860
861 /* step through the endpoints to find first bulk in and out endpoint */
862 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
863 ep = &idesc->endpoint[i].desc;
864
865 if ((ep_in == NULL)
866 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
867 == USB_DIR_IN)
868 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
869 == USB_ENDPOINT_XFER_BULK)
870 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
871 == USB_ENDPOINT_XFER_INT))) {
872
873 dev_dbg(&intf->dev, ": acceptable inbound endpoint "
874 "found\n");
875 ep_in = ep;
876 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
877 if (!is_pinnacle)
878 /*
879 * Ideally, we'd use what the device offers up,
880 * but that leads to non-functioning first and
881 * second-gen devices, and many devices have an
882 * invalid bInterval of 0. Pinnacle devices
883 * don't work witha bInterval of 1 though.
884 */
885 ep_in->bInterval = 1;
886 }
887
888 if ((ep_out == NULL)
889 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
890 == USB_DIR_OUT)
891 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
892 == USB_ENDPOINT_XFER_BULK)
893 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
894 == USB_ENDPOINT_XFER_INT))) {
895
896 dev_dbg(&intf->dev, ": acceptable outbound endpoint "
897 "found\n");
898 ep_out = ep;
899 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
900 if (!is_pinnacle)
901 /*
902 * Ideally, we'd use what the device offers up,
903 * but that leads to non-functioning first and
904 * second-gen devices, and many devices have an
905 * invalid bInterval of 0. Pinnacle devices
906 * don't work witha bInterval of 1 though.
907 */
908 ep_out->bInterval = 1;
909 }
910 }
911 if (ep_in == NULL) {
912 dev_dbg(&intf->dev, ": inbound and/or endpoint not found\n");
913 return -ENODEV;
914 }
915
916 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
917 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
918
919 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
920 if (!ir)
921 goto mem_alloc_fail;
922
923 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
924 if (!ir->buf_in)
925 goto buf_in_alloc_fail;
926
927 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
928 if (!ir->urb_in)
929 goto urb_in_alloc_fail;
930
931 ir->usbdev = dev;
932 ir->dev = &intf->dev;
933 ir->len_in = maxp;
934 ir->flags.gen3 = is_gen3;
935 ir->flags.microsoft_gen1 = is_microsoft_gen1;
936
937 /* Saving usb interface data for use by the transmitter routine */
938 ir->usb_ep_in = ep_in;
939 ir->usb_ep_out = ep_out;
940
941 if (dev->descriptor.iManufacturer
942 && usb_string(dev, dev->descriptor.iManufacturer,
943 buf, sizeof(buf)) > 0)
944 strlcpy(name, buf, sizeof(name));
945 if (dev->descriptor.iProduct
946 && usb_string(dev, dev->descriptor.iProduct,
947 buf, sizeof(buf)) > 0)
948 snprintf(name + strlen(name), sizeof(name) - strlen(name),
949 " %s", buf);
950
951 ir->idev = mceusb_init_input_dev(ir);
952 if (!ir->idev)
953 goto input_dev_fail;
954
955 /* inbound data */
956 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
957 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
958 ir->urb_in->transfer_dma = ir->dma_in;
959 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
960
961 if (is_pinnacle) {
962 /*
963 * I have no idea why but this reset seems to be crucial to
964 * getting the device to do outbound IO correctly - without
965 * this the device seems to hang, ignoring all input - although
966 * IR signals are correctly sent from the device, no input is
967 * interpreted by the device and the host never does the
968 * completion routine
969 */
970 ret = usb_reset_configuration(dev);
971 dev_info(&intf->dev, "usb reset config ret %x\n", ret);
972 }
973
974 /* initialize device */
975 if (ir->flags.gen3)
976 mceusb_gen3_init(ir);
977
978 else if (ir->flags.microsoft_gen1)
979 mceusb_gen1_init(ir);
980
981 else
982 mceusb_gen2_init(ir);
983
984 mce_sync_in(ir, NULL, maxp);
985
986 /* We've already done this on gen3 devices */
987 if (!ir->flags.def_xmit_mask_set) {
988 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
989 mce_sync_in(ir, NULL, maxp);
990 }
991
992 usb_set_intfdata(intf, ir);
993
994 dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
995 dev->bus->busnum, dev->devnum);
996
997 return 0;
998
999 /* Error-handling path */
1000input_dev_fail:
1001 usb_free_urb(ir->urb_in);
1002urb_in_alloc_fail:
1003 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1004buf_in_alloc_fail:
1005 kfree(ir);
1006mem_alloc_fail:
1007 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1008
1009 return -ENOMEM;
1010}
1011
1012
1013static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1014{
1015 struct usb_device *dev = interface_to_usbdev(intf);
1016 struct mceusb_dev *ir = usb_get_intfdata(intf);
1017
1018 usb_set_intfdata(intf, NULL);
1019
1020 if (!ir)
1021 return;
1022
1023 ir->usbdev = NULL;
1024 input_unregister_device(ir->idev);
1025 usb_kill_urb(ir->urb_in);
1026 usb_free_urb(ir->urb_in);
1027 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1028
1029 kfree(ir);
1030}
1031
1032static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1033{
1034 struct mceusb_dev *ir = usb_get_intfdata(intf);
1035 dev_info(ir->dev, "suspend\n");
1036 usb_kill_urb(ir->urb_in);
1037 return 0;
1038}
1039
1040static int mceusb_dev_resume(struct usb_interface *intf)
1041{
1042 struct mceusb_dev *ir = usb_get_intfdata(intf);
1043 dev_info(ir->dev, "resume\n");
1044 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1045 return -EIO;
1046 return 0;
1047}
1048
1049static struct usb_driver mceusb_dev_driver = {
1050 .name = DRIVER_NAME,
1051 .probe = mceusb_dev_probe,
1052 .disconnect = mceusb_dev_disconnect,
1053 .suspend = mceusb_dev_suspend,
1054 .resume = mceusb_dev_resume,
1055 .reset_resume = mceusb_dev_resume,
1056 .id_table = mceusb_dev_table
1057};
1058
1059static int __init mceusb_dev_init(void)
1060{
1061 int ret;
1062
1063 ret = usb_register(&mceusb_dev_driver);
1064 if (ret < 0)
1065 printk(KERN_ERR DRIVER_NAME
1066 ": usb register failed, result = %d\n", ret);
1067
1068 return ret;
1069}
1070
1071static void __exit mceusb_dev_exit(void)
1072{
1073 usb_deregister(&mceusb_dev_driver);
1074}
1075
1076module_init(mceusb_dev_init);
1077module_exit(mceusb_dev_exit);
1078
1079MODULE_DESCRIPTION(DRIVER_DESC);
1080MODULE_AUTHOR(DRIVER_AUTHOR);
1081MODULE_LICENSE("GPL");
1082MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1083
1084module_param(debug, bool, S_IRUGO | S_IWUSR);
1085MODULE_PARM_DESC(debug, "Debug enabled or not");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-14 09:54:15 -0500