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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 | * | |
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 | |
74 | static int debug = 1; | |
75 | #else | |
76 | static 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 | ||
111 | static 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 | ||
204 | static struct usb_device_id gen3_list[] = { | |
205 | { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, | |
206 | { USB_DEVICE(VENDOR_TOPSEED, 0x0008) }, | |
207 | {} | |
208 | }; | |
209 | ||
210 | static struct usb_device_id pinnacle_list[] = { | |
211 | { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, | |
212 | {} | |
213 | }; | |
214 | ||
215 | static struct usb_device_id microsoft_gen1_list[] = { | |
216 | { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) }, | |
217 | {} | |
218 | }; | |
219 | ||
220 | /* data structure for each usb transceiver */ | |
221 | struct 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 | */ | |
287 | static char DEVICE_RESET[] = {0x00, 0xff, 0xaa}; | |
288 | static char GET_REVISION[] = {0xff, 0x0b}; | |
289 | static char GET_UNKNOWN[] = {0xff, 0x18}; | |
290 | static char GET_CARRIER_FREQ[] = {0x9f, 0x07}; | |
291 | static char GET_RX_TIMEOUT[] = {0x9f, 0x0d}; | |
292 | static char GET_TX_BITMASK[] = {0x9f, 0x13}; | |
293 | static 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. | |
296 | static char SET_CARRIER_FREQ[] = {0x9f, 0x06, 0x00, 0x00}; | |
297 | static char SET_TX_BITMASK[] = {0x9f, 0x08, 0x00}; | |
298 | static char SET_RX_TIMEOUT[] = {0x9f, 0x0c, 0x00, 0x00}; | |
299 | static char SET_RX_SENSOR[] = {0x9f, 0x14, 0x00}; | |
300 | */ | |
301 | ||
302 | static 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 | ||
424 | static 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 */ | |
447 | static 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 | ||
500 | static 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 | ||
505 | static 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 | ||
510 | static 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 | ||
571 | static 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 | ||
589 | static 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 | ||
637 | static 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 | ||
699 | static 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 | ||
719 | static 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 | ||
746 | static 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 | ||
821 | irdev_failed: | |
822 | kfree(state); | |
823 | ir_state_alloc_failed: | |
824 | kfree(irdev); | |
825 | ir_dev_alloc_failed: | |
826 | kfree(props); | |
827 | props_alloc_failed: | |
828 | input_free_device(idev); | |
829 | idev_alloc_failed: | |
830 | return NULL; | |
831 | } | |
832 | ||
833 | static 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 */ | |
1000 | input_dev_fail: | |
1001 | usb_free_urb(ir->urb_in); | |
1002 | urb_in_alloc_fail: | |
1003 | usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); | |
1004 | buf_in_alloc_fail: | |
1005 | kfree(ir); | |
1006 | mem_alloc_fail: | |
1007 | dev_err(&intf->dev, "%s: device setup failed!\n", __func__); | |
1008 | ||
1009 | return -ENOMEM; | |
1010 | } | |
1011 | ||
1012 | ||
1013 | static 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 | ||
1032 | static 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 | ||
1040 | static 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 | ||
1049 | static 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 | ||
1059 | static 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 | ||
1071 | static void __exit mceusb_dev_exit(void) | |
1072 | { | |
1073 | usb_deregister(&mceusb_dev_driver); | |
1074 | } | |
1075 | ||
1076 | module_init(mceusb_dev_init); | |
1077 | module_exit(mceusb_dev_exit); | |
1078 | ||
1079 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1080 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1081 | MODULE_LICENSE("GPL"); | |
1082 | MODULE_DEVICE_TABLE(usb, mceusb_dev_table); | |
1083 | ||
1084 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
1085 | MODULE_PARM_DESC(debug, "Debug enabled or not"); |