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[media] adv7180.c: convert to v4l2 control framework
[deliverable/linux.git] / drivers / media / rc / mceusb.c
1 /*
2 * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
3 *
4 * Copyright (c) 2010-2011, 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 * Updated in July of 2011 with the aid of Microsoft's official
19 * remote/transceiver requirements and specification document, found at
20 * download.microsoft.com, title
21 * Windows-Media-Center-RC-IR-Collection-Green-Button-Specification-03-08-2011-V2.pdf
22 *
23 *
24 * This program is free software; you can redistribute it and/or modify
25 * it under the terms of the GNU General Public License as published by
26 * the Free Software Foundation; either version 2 of the License, or
27 * (at your option) any later version.
28 *
29 * This program is distributed in the hope that it will be useful,
30 * but WITHOUT ANY WARRANTY; without even the implied warranty of
31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
32 * GNU General Public License for more details.
33 *
34 * You should have received a copy of the GNU General Public License
35 * along with this program; if not, write to the Free Software
36 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
37 *
38 */
39
40 #include <linux/device.h>
41 #include <linux/module.h>
42 #include <linux/slab.h>
43 #include <linux/usb.h>
44 #include <linux/usb/input.h>
45 #include <linux/pm_wakeup.h>
46 #include <media/rc-core.h>
47
48 #define DRIVER_VERSION "1.92"
49 #define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>"
50 #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
51 "device driver"
52 #define DRIVER_NAME "mceusb"
53
54 #define USB_BUFLEN 32 /* USB reception buffer length */
55 #define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */
56 #define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */
57
58 /* MCE constants */
59 #define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */
60 #define MCE_TIME_UNIT 50 /* Approx 50us resolution */
61 #define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */
62 #define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */
63 #define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */
64 #define MCE_IRDATA_TRAILER 0x80 /* End of IR data */
65 #define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */
66 #define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */
67 #define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */
68 #define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */
69 #define MCE_PULSE_MASK 0x7f /* Pulse mask */
70 #define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */
71
72 /*
73 * The interface between the host and the IR hardware is command-response
74 * based. All commands and responses have a consistent format, where a lead
75 * byte always identifies the type of data following it. The lead byte has
76 * a port value in the 3 highest bits and a length value in the 5 lowest
77 * bits.
78 *
79 * The length field is overloaded, with a value of 11111 indicating that the
80 * following byte is a command or response code, and the length of the entire
81 * message is determined by the code. If the length field is not 11111, then
82 * it specifies the number of bytes of port data that follow.
83 */
84 #define MCE_CMD 0x1f
85 #define MCE_PORT_IR 0x4 /* (0x4 << 5) | MCE_CMD = 0x9f */
86 #define MCE_PORT_SYS 0x7 /* (0x7 << 5) | MCE_CMD = 0xff */
87 #define MCE_PORT_SER 0x6 /* 0xc0 thru 0xdf flush & 0x1f bytes */
88 #define MCE_PORT_MASK 0xe0 /* Mask out command bits */
89
90 /* Command port headers */
91 #define MCE_CMD_PORT_IR 0x9f /* IR-related cmd/rsp */
92 #define MCE_CMD_PORT_SYS 0xff /* System (non-IR) device cmd/rsp */
93
94 /* Commands that set device state (2-4 bytes in length) */
95 #define MCE_CMD_RESET 0xfe /* Reset device, 2 bytes */
96 #define MCE_CMD_RESUME 0xaa /* Resume device after error, 2 bytes */
97 #define MCE_CMD_SETIRCFS 0x06 /* Set tx carrier, 4 bytes */
98 #define MCE_CMD_SETIRTIMEOUT 0x0c /* Set timeout, 4 bytes */
99 #define MCE_CMD_SETIRTXPORTS 0x08 /* Set tx ports, 3 bytes */
100 #define MCE_CMD_SETIRRXPORTEN 0x14 /* Set rx ports, 3 bytes */
101 #define MCE_CMD_FLASHLED 0x23 /* Flash receiver LED, 2 bytes */
102
103 /* Commands that query device state (all 2 bytes, unless noted) */
104 #define MCE_CMD_GETIRCFS 0x07 /* Get carrier */
105 #define MCE_CMD_GETIRTIMEOUT 0x0d /* Get timeout */
106 #define MCE_CMD_GETIRTXPORTS 0x13 /* Get tx ports */
107 #define MCE_CMD_GETIRRXPORTEN 0x15 /* Get rx ports */
108 #define MCE_CMD_GETPORTSTATUS 0x11 /* Get tx port status, 3 bytes */
109 #define MCE_CMD_GETIRNUMPORTS 0x16 /* Get number of ports */
110 #define MCE_CMD_GETWAKESOURCE 0x17 /* Get wake source */
111 #define MCE_CMD_GETEMVER 0x22 /* Get emulator interface version */
112 #define MCE_CMD_GETDEVDETAILS 0x21 /* Get device details (em ver2 only) */
113 #define MCE_CMD_GETWAKESUPPORT 0x20 /* Get wake details (em ver2 only) */
114 #define MCE_CMD_GETWAKEVERSION 0x18 /* Get wake pattern (em ver2 only) */
115
116 /* Misc commands */
117 #define MCE_CMD_NOP 0xff /* No operation */
118
119 /* Responses to commands (non-error cases) */
120 #define MCE_RSP_EQIRCFS 0x06 /* tx carrier, 4 bytes */
121 #define MCE_RSP_EQIRTIMEOUT 0x0c /* rx timeout, 4 bytes */
122 #define MCE_RSP_GETWAKESOURCE 0x17 /* wake source, 3 bytes */
123 #define MCE_RSP_EQIRTXPORTS 0x08 /* tx port mask, 3 bytes */
124 #define MCE_RSP_EQIRRXPORTEN 0x14 /* rx port mask, 3 bytes */
125 #define MCE_RSP_GETPORTSTATUS 0x11 /* tx port status, 7 bytes */
126 #define MCE_RSP_EQIRRXCFCNT 0x15 /* rx carrier count, 4 bytes */
127 #define MCE_RSP_EQIRNUMPORTS 0x16 /* number of ports, 4 bytes */
128 #define MCE_RSP_EQWAKESUPPORT 0x20 /* wake capabilities, 3 bytes */
129 #define MCE_RSP_EQWAKEVERSION 0x18 /* wake pattern details, 6 bytes */
130 #define MCE_RSP_EQDEVDETAILS 0x21 /* device capabilities, 3 bytes */
131 #define MCE_RSP_EQEMVER 0x22 /* emulator interface ver, 3 bytes */
132 #define MCE_RSP_FLASHLED 0x23 /* success flashing LED, 2 bytes */
133
134 /* Responses to error cases, must send MCE_CMD_RESUME to clear them */
135 #define MCE_RSP_CMD_ILLEGAL 0xfe /* illegal command for port, 2 bytes */
136 #define MCE_RSP_TX_TIMEOUT 0x81 /* tx timed out, 2 bytes */
137
138 /* Misc commands/responses not defined in the MCE remote/transceiver spec */
139 #define MCE_CMD_SIG_END 0x01 /* End of signal */
140 #define MCE_CMD_PING 0x03 /* Ping device */
141 #define MCE_CMD_UNKNOWN 0x04 /* Unknown */
142 #define MCE_CMD_UNKNOWN2 0x05 /* Unknown */
143 #define MCE_CMD_UNKNOWN3 0x09 /* Unknown */
144 #define MCE_CMD_UNKNOWN4 0x0a /* Unknown */
145 #define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */
146 #define MCE_CMD_UNKNOWN5 0x0e /* Unknown */
147 #define MCE_CMD_UNKNOWN6 0x0f /* Unknown */
148 #define MCE_CMD_UNKNOWN8 0x19 /* Unknown */
149 #define MCE_CMD_UNKNOWN9 0x1b /* Unknown */
150 #define MCE_CMD_NULL 0x00 /* These show up various places... */
151
152 /* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR,
153 * then we're looking at a raw IR data sample */
154 #define MCE_COMMAND_IRDATA 0x80
155 #define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
156
157 /* module parameters */
158 #ifdef CONFIG_USB_DEBUG
159 static bool debug = 1;
160 #else
161 static bool debug;
162 #endif
163
164 #define mce_dbg(dev, fmt, ...) \
165 do { \
166 if (debug) \
167 dev_info(dev, fmt, ## __VA_ARGS__); \
168 } while (0)
169
170 /* general constants */
171 #define SEND_FLAG_IN_PROGRESS 1
172 #define SEND_FLAG_COMPLETE 2
173 #define RECV_FLAG_IN_PROGRESS 3
174 #define RECV_FLAG_COMPLETE 4
175
176 #define MCEUSB_RX 1
177 #define MCEUSB_TX 2
178
179 #define VENDOR_PHILIPS 0x0471
180 #define VENDOR_SMK 0x0609
181 #define VENDOR_TATUNG 0x1460
182 #define VENDOR_GATEWAY 0x107b
183 #define VENDOR_SHUTTLE 0x1308
184 #define VENDOR_SHUTTLE2 0x051c
185 #define VENDOR_MITSUMI 0x03ee
186 #define VENDOR_TOPSEED 0x1784
187 #define VENDOR_RICAVISION 0x179d
188 #define VENDOR_ITRON 0x195d
189 #define VENDOR_FIC 0x1509
190 #define VENDOR_LG 0x043e
191 #define VENDOR_MICROSOFT 0x045e
192 #define VENDOR_FORMOSA 0x147a
193 #define VENDOR_FINTEK 0x1934
194 #define VENDOR_PINNACLE 0x2304
195 #define VENDOR_ECS 0x1019
196 #define VENDOR_WISTRON 0x0fb8
197 #define VENDOR_COMPRO 0x185b
198 #define VENDOR_NORTHSTAR 0x04eb
199 #define VENDOR_REALTEK 0x0bda
200 #define VENDOR_TIVO 0x105a
201 #define VENDOR_CONEXANT 0x0572
202
203 enum mceusb_model_type {
204 MCE_GEN2 = 0, /* Most boards */
205 MCE_GEN1,
206 MCE_GEN3,
207 MCE_GEN2_TX_INV,
208 POLARIS_EVK,
209 CX_HYBRID_TV,
210 MULTIFUNCTION,
211 TIVO_KIT,
212 MCE_GEN2_NO_TX,
213 };
214
215 struct mceusb_model {
216 u32 mce_gen1:1;
217 u32 mce_gen2:1;
218 u32 mce_gen3:1;
219 u32 tx_mask_normal:1;
220 u32 no_tx:1;
221
222 int ir_intfnum;
223
224 const char *rc_map; /* Allow specify a per-board map */
225 const char *name; /* per-board name */
226 };
227
228 static const struct mceusb_model mceusb_model[] = {
229 [MCE_GEN1] = {
230 .mce_gen1 = 1,
231 .tx_mask_normal = 1,
232 },
233 [MCE_GEN2] = {
234 .mce_gen2 = 1,
235 },
236 [MCE_GEN2_NO_TX] = {
237 .mce_gen2 = 1,
238 .no_tx = 1,
239 },
240 [MCE_GEN2_TX_INV] = {
241 .mce_gen2 = 1,
242 .tx_mask_normal = 1,
243 },
244 [MCE_GEN3] = {
245 .mce_gen3 = 1,
246 .tx_mask_normal = 1,
247 },
248 [POLARIS_EVK] = {
249 /*
250 * In fact, the EVK is shipped without
251 * remotes, but we should have something handy,
252 * to allow testing it
253 */
254 .rc_map = RC_MAP_HAUPPAUGE,
255 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
256 },
257 [CX_HYBRID_TV] = {
258 .no_tx = 1, /* tx isn't wired up at all */
259 .name = "Conexant Hybrid TV (cx231xx) MCE IR",
260 },
261 [MULTIFUNCTION] = {
262 .mce_gen2 = 1,
263 .ir_intfnum = 2,
264 },
265 [TIVO_KIT] = {
266 .mce_gen2 = 1,
267 .rc_map = RC_MAP_TIVO,
268 },
269 };
270
271 static struct usb_device_id mceusb_dev_table[] = {
272 /* Original Microsoft MCE IR Transceiver (often HP-branded) */
273 { USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
274 .driver_info = MCE_GEN1 },
275 /* Philips Infrared Transceiver - Sahara branded */
276 { USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
277 /* Philips Infrared Transceiver - HP branded */
278 { USB_DEVICE(VENDOR_PHILIPS, 0x060c),
279 .driver_info = MCE_GEN2_TX_INV },
280 /* Philips SRM5100 */
281 { USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
282 /* Philips Infrared Transceiver - Omaura */
283 { USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
284 /* Philips Infrared Transceiver - Spinel plus */
285 { USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
286 /* Philips eHome Infrared Transceiver */
287 { USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
288 /* Philips/Spinel plus IR transceiver for ASUS */
289 { USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
290 /* Philips/Spinel plus IR transceiver for ASUS */
291 { USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
292 /* Philips IR transceiver (Dell branded) */
293 { USB_DEVICE(VENDOR_PHILIPS, 0x2093) },
294 /* Realtek MCE IR Receiver and card reader */
295 { USB_DEVICE(VENDOR_REALTEK, 0x0161),
296 .driver_info = MULTIFUNCTION },
297 /* SMK/Toshiba G83C0004D410 */
298 { USB_DEVICE(VENDOR_SMK, 0x031d),
299 .driver_info = MCE_GEN2_TX_INV },
300 /* SMK eHome Infrared Transceiver (Sony VAIO) */
301 { USB_DEVICE(VENDOR_SMK, 0x0322),
302 .driver_info = MCE_GEN2_TX_INV },
303 /* bundled with Hauppauge PVR-150 */
304 { USB_DEVICE(VENDOR_SMK, 0x0334),
305 .driver_info = MCE_GEN2_TX_INV },
306 /* SMK eHome Infrared Transceiver */
307 { USB_DEVICE(VENDOR_SMK, 0x0338) },
308 /* SMK/I-O Data GV-MC7/RCKIT Receiver */
309 { USB_DEVICE(VENDOR_SMK, 0x0353),
310 .driver_info = MCE_GEN2_NO_TX },
311 /* Tatung eHome Infrared Transceiver */
312 { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
313 /* Shuttle eHome Infrared Transceiver */
314 { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
315 /* Shuttle eHome Infrared Transceiver */
316 { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
317 /* Gateway eHome Infrared Transceiver */
318 { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
319 /* Mitsumi */
320 { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
321 /* Topseed eHome Infrared Transceiver */
322 { USB_DEVICE(VENDOR_TOPSEED, 0x0001),
323 .driver_info = MCE_GEN2_TX_INV },
324 /* Topseed HP eHome Infrared Transceiver */
325 { USB_DEVICE(VENDOR_TOPSEED, 0x0006),
326 .driver_info = MCE_GEN2_TX_INV },
327 /* Topseed eHome Infrared Transceiver */
328 { USB_DEVICE(VENDOR_TOPSEED, 0x0007),
329 .driver_info = MCE_GEN2_TX_INV },
330 /* Topseed eHome Infrared Transceiver */
331 { USB_DEVICE(VENDOR_TOPSEED, 0x0008),
332 .driver_info = MCE_GEN3 },
333 /* Topseed eHome Infrared Transceiver */
334 { USB_DEVICE(VENDOR_TOPSEED, 0x000a),
335 .driver_info = MCE_GEN2_TX_INV },
336 /* Topseed eHome Infrared Transceiver */
337 { USB_DEVICE(VENDOR_TOPSEED, 0x0011),
338 .driver_info = MCE_GEN3 },
339 /* Ricavision internal Infrared Transceiver */
340 { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
341 /* Itron ione Libra Q-11 */
342 { USB_DEVICE(VENDOR_ITRON, 0x7002) },
343 /* FIC eHome Infrared Transceiver */
344 { USB_DEVICE(VENDOR_FIC, 0x9242) },
345 /* LG eHome Infrared Transceiver */
346 { USB_DEVICE(VENDOR_LG, 0x9803) },
347 /* Microsoft MCE Infrared Transceiver */
348 { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
349 /* Formosa eHome Infrared Transceiver */
350 { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
351 /* Formosa21 / eHome Infrared Receiver */
352 { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
353 /* Formosa aim / Trust MCE Infrared Receiver */
354 { USB_DEVICE(VENDOR_FORMOSA, 0xe017),
355 .driver_info = MCE_GEN2_NO_TX },
356 /* Formosa Industrial Computing / Beanbag Emulation Device */
357 { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
358 /* Formosa21 / eHome Infrared Receiver */
359 { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
360 /* Formosa Industrial Computing AIM IR605/A */
361 { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
362 /* Formosa Industrial Computing */
363 { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
364 /* Formosa Industrial Computing */
365 { USB_DEVICE(VENDOR_FORMOSA, 0xe042) },
366 /* Fintek eHome Infrared Transceiver (HP branded) */
367 { USB_DEVICE(VENDOR_FINTEK, 0x5168) },
368 /* Fintek eHome Infrared Transceiver */
369 { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
370 /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
371 { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
372 /* Pinnacle Remote Kit */
373 { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
374 .driver_info = MCE_GEN3 },
375 /* Elitegroup Computer Systems IR */
376 { USB_DEVICE(VENDOR_ECS, 0x0f38) },
377 /* Wistron Corp. eHome Infrared Receiver */
378 { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
379 /* Compro K100 */
380 { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
381 /* Compro K100 v2 */
382 { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
383 /* Northstar Systems, Inc. eHome Infrared Transceiver */
384 { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
385 /* TiVo PC IR Receiver */
386 { USB_DEVICE(VENDOR_TIVO, 0x2000),
387 .driver_info = TIVO_KIT },
388 /* Conexant Hybrid TV "Shelby" Polaris SDK */
389 { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
390 .driver_info = POLARIS_EVK },
391 /* Conexant Hybrid TV RDU253S Polaris */
392 { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
393 .driver_info = CX_HYBRID_TV },
394 /* Terminating entry */
395 { }
396 };
397
398 /* data structure for each usb transceiver */
399 struct mceusb_dev {
400 /* ir-core bits */
401 struct rc_dev *rc;
402
403 /* optional features we can enable */
404 bool carrier_report_enabled;
405 bool learning_enabled;
406
407 /* core device bits */
408 struct device *dev;
409
410 /* usb */
411 struct usb_device *usbdev;
412 struct urb *urb_in;
413 struct usb_endpoint_descriptor *usb_ep_in;
414 struct usb_endpoint_descriptor *usb_ep_out;
415
416 /* buffers and dma */
417 unsigned char *buf_in;
418 unsigned int len_in;
419 dma_addr_t dma_in;
420 dma_addr_t dma_out;
421
422 enum {
423 CMD_HEADER = 0,
424 SUBCMD,
425 CMD_DATA,
426 PARSE_IRDATA,
427 } parser_state;
428
429 u8 cmd, rem; /* Remaining IR data bytes in packet */
430
431 struct {
432 u32 connected:1;
433 u32 tx_mask_normal:1;
434 u32 microsoft_gen1:1;
435 u32 no_tx:1;
436 } flags;
437
438 /* transmit support */
439 int send_flags;
440 u32 carrier;
441 unsigned char tx_mask;
442
443 char name[128];
444 char phys[64];
445 enum mceusb_model_type model;
446
447 bool need_reset; /* flag to issue a device resume cmd */
448 u8 emver; /* emulator interface version */
449 u8 num_txports; /* number of transmit ports */
450 u8 num_rxports; /* number of receive sensors */
451 u8 txports_cabled; /* bitmask of transmitters with cable */
452 u8 rxports_active; /* bitmask of active receive sensors */
453 };
454
455 /* MCE Device Command Strings, generally a port and command pair */
456 static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS,
457 MCE_CMD_RESUME};
458 static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION};
459 static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER};
460 static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION};
461 static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED};
462 static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2};
463 static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS};
464 static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT};
465 static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS};
466 static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS};
467 static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN};
468 /* sub in desired values in lower byte or bytes for full command */
469 /* FIXME: make use of these for transmit.
470 static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR,
471 MCE_CMD_SETIRCFS, 0x00, 0x00};
472 static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00};
473 static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR,
474 MCE_CMD_SETIRTIMEOUT, 0x00, 0x00};
475 static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR,
476 MCE_RSP_EQIRRXPORTEN, 0x00};
477 */
478
479 static int mceusb_cmdsize(u8 cmd, u8 subcmd)
480 {
481 int datasize = 0;
482
483 switch (cmd) {
484 case MCE_CMD_NULL:
485 if (subcmd == MCE_CMD_PORT_SYS)
486 datasize = 1;
487 break;
488 case MCE_CMD_PORT_SYS:
489 switch (subcmd) {
490 case MCE_RSP_EQWAKEVERSION:
491 datasize = 4;
492 break;
493 case MCE_CMD_G_REVISION:
494 datasize = 2;
495 break;
496 case MCE_RSP_EQWAKESUPPORT:
497 datasize = 1;
498 break;
499 }
500 case MCE_CMD_PORT_IR:
501 switch (subcmd) {
502 case MCE_CMD_UNKNOWN:
503 case MCE_RSP_EQIRCFS:
504 case MCE_RSP_EQIRTIMEOUT:
505 case MCE_RSP_EQIRRXCFCNT:
506 datasize = 2;
507 break;
508 case MCE_CMD_SIG_END:
509 case MCE_RSP_EQIRTXPORTS:
510 case MCE_RSP_EQIRRXPORTEN:
511 datasize = 1;
512 break;
513 }
514 }
515 return datasize;
516 }
517
518 static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
519 int offset, int len, bool out)
520 {
521 char codes[USB_BUFLEN * 3 + 1];
522 char inout[9];
523 u8 cmd, subcmd, data1, data2, data3, data4;
524 struct device *dev = ir->dev;
525 int i, start, skip = 0;
526 u32 carrier, period;
527
528 if (!debug)
529 return;
530
531 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
532 if (ir->flags.microsoft_gen1 && !out && !offset)
533 skip = 2;
534
535 if (len <= skip)
536 return;
537
538 for (i = 0; i < len && i < USB_BUFLEN; i++)
539 snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff);
540
541 dev_info(dev, "%sx data: %s(length=%d)\n",
542 (out ? "t" : "r"), codes, len);
543
544 if (out)
545 strcpy(inout, "Request\0");
546 else
547 strcpy(inout, "Got\0");
548
549 start = offset + skip;
550 cmd = buf[start] & 0xff;
551 subcmd = buf[start + 1] & 0xff;
552 data1 = buf[start + 2] & 0xff;
553 data2 = buf[start + 3] & 0xff;
554 data3 = buf[start + 4] & 0xff;
555 data4 = buf[start + 5] & 0xff;
556
557 switch (cmd) {
558 case MCE_CMD_NULL:
559 if (subcmd == MCE_CMD_NULL)
560 break;
561 if ((subcmd == MCE_CMD_PORT_SYS) &&
562 (data1 == MCE_CMD_RESUME))
563 dev_info(dev, "Device resume requested\n");
564 else
565 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
566 cmd, subcmd);
567 break;
568 case MCE_CMD_PORT_SYS:
569 switch (subcmd) {
570 case MCE_RSP_EQEMVER:
571 if (!out)
572 dev_info(dev, "Emulator interface version %x\n",
573 data1);
574 break;
575 case MCE_CMD_G_REVISION:
576 if (len == 2)
577 dev_info(dev, "Get hw/sw rev?\n");
578 else
579 dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
580 "0x%02x 0x%02x\n", data1, data2,
581 buf[start + 4], buf[start + 5]);
582 break;
583 case MCE_CMD_RESUME:
584 dev_info(dev, "Device resume requested\n");
585 break;
586 case MCE_RSP_CMD_ILLEGAL:
587 dev_info(dev, "Illegal PORT_SYS command\n");
588 break;
589 case MCE_RSP_EQWAKEVERSION:
590 if (!out)
591 dev_info(dev, "Wake version, proto: 0x%02x, "
592 "payload: 0x%02x, address: 0x%02x, "
593 "version: 0x%02x\n",
594 data1, data2, data3, data4);
595 break;
596 case MCE_RSP_GETPORTSTATUS:
597 if (!out)
598 /* We use data1 + 1 here, to match hw labels */
599 dev_info(dev, "TX port %d: blaster is%s connected\n",
600 data1 + 1, data4 ? " not" : "");
601 break;
602 case MCE_CMD_FLASHLED:
603 dev_info(dev, "Attempting to flash LED\n");
604 break;
605 default:
606 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
607 cmd, subcmd);
608 break;
609 }
610 break;
611 case MCE_CMD_PORT_IR:
612 switch (subcmd) {
613 case MCE_CMD_SIG_END:
614 dev_info(dev, "End of signal\n");
615 break;
616 case MCE_CMD_PING:
617 dev_info(dev, "Ping\n");
618 break;
619 case MCE_CMD_UNKNOWN:
620 dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
621 data1, data2);
622 break;
623 case MCE_RSP_EQIRCFS:
624 period = DIV_ROUND_CLOSEST(
625 (1 << data1 * 2) * (data2 + 1), 10);
626 if (!period)
627 break;
628 carrier = (1000 * 1000) / period;
629 dev_info(dev, "%s carrier of %u Hz (period %uus)\n",
630 inout, carrier, period);
631 break;
632 case MCE_CMD_GETIRCFS:
633 dev_info(dev, "Get carrier mode and freq\n");
634 break;
635 case MCE_RSP_EQIRTXPORTS:
636 dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
637 inout, data1);
638 break;
639 case MCE_RSP_EQIRTIMEOUT:
640 /* value is in units of 50us, so x*50/1000 ms */
641 period = ((data1 << 8) | data2) * MCE_TIME_UNIT / 1000;
642 dev_info(dev, "%s receive timeout of %d ms\n",
643 inout, period);
644 break;
645 case MCE_CMD_GETIRTIMEOUT:
646 dev_info(dev, "Get receive timeout\n");
647 break;
648 case MCE_CMD_GETIRTXPORTS:
649 dev_info(dev, "Get transmit blaster mask\n");
650 break;
651 case MCE_RSP_EQIRRXPORTEN:
652 dev_info(dev, "%s %s-range receive sensor in use\n",
653 inout, data1 == 0x02 ? "short" : "long");
654 break;
655 case MCE_CMD_GETIRRXPORTEN:
656 /* aka MCE_RSP_EQIRRXCFCNT */
657 if (out)
658 dev_info(dev, "Get receive sensor\n");
659 else if (ir->learning_enabled)
660 dev_info(dev, "RX pulse count: %d\n",
661 ((data1 << 8) | data2));
662 break;
663 case MCE_RSP_EQIRNUMPORTS:
664 if (out)
665 break;
666 dev_info(dev, "Num TX ports: %x, num RX ports: %x\n",
667 data1, data2);
668 break;
669 case MCE_RSP_CMD_ILLEGAL:
670 dev_info(dev, "Illegal PORT_IR command\n");
671 break;
672 default:
673 dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
674 cmd, subcmd);
675 break;
676 }
677 break;
678 default:
679 break;
680 }
681
682 if (cmd == MCE_IRDATA_TRAILER)
683 dev_info(dev, "End of raw IR data\n");
684 else if ((cmd != MCE_CMD_PORT_IR) &&
685 ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA))
686 dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
687 }
688
689 static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
690 {
691 struct mceusb_dev *ir;
692 int len;
693
694 if (!urb)
695 return;
696
697 ir = urb->context;
698 if (ir) {
699 len = urb->actual_length;
700
701 mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
702 }
703
704 /* the transfer buffer and urb were allocated in mce_request_packet */
705 kfree(urb->transfer_buffer);
706 usb_free_urb(urb);
707 }
708
709 /* request incoming or send outgoing usb packet - used to initialize remote */
710 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data,
711 int size, int urb_type)
712 {
713 int res, pipe;
714 struct urb *async_urb;
715 struct device *dev = ir->dev;
716 unsigned char *async_buf;
717
718 if (urb_type == MCEUSB_TX) {
719 async_urb = usb_alloc_urb(0, GFP_KERNEL);
720 if (unlikely(!async_urb)) {
721 dev_err(dev, "Error, couldn't allocate urb!\n");
722 return;
723 }
724
725 async_buf = kzalloc(size, GFP_KERNEL);
726 if (!async_buf) {
727 dev_err(dev, "Error, couldn't allocate buf!\n");
728 usb_free_urb(async_urb);
729 return;
730 }
731
732 /* outbound data */
733 pipe = usb_sndintpipe(ir->usbdev,
734 ir->usb_ep_out->bEndpointAddress);
735 usb_fill_int_urb(async_urb, ir->usbdev, pipe,
736 async_buf, size, (usb_complete_t)mce_async_callback,
737 ir, ir->usb_ep_out->bInterval);
738 memcpy(async_buf, data, size);
739
740 } else if (urb_type == MCEUSB_RX) {
741 /* standard request */
742 async_urb = ir->urb_in;
743 ir->send_flags = RECV_FLAG_IN_PROGRESS;
744
745 } else {
746 dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
747 return;
748 }
749
750 mce_dbg(dev, "receive request called (size=%#x)\n", size);
751
752 async_urb->transfer_buffer_length = size;
753 async_urb->dev = ir->usbdev;
754
755 res = usb_submit_urb(async_urb, GFP_ATOMIC);
756 if (res) {
757 mce_dbg(dev, "receive request FAILED! (res=%d)\n", res);
758 return;
759 }
760 mce_dbg(dev, "receive request complete (res=%d)\n", res);
761 }
762
763 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
764 {
765 int rsize = sizeof(DEVICE_RESUME);
766
767 if (ir->need_reset) {
768 ir->need_reset = false;
769 mce_request_packet(ir, DEVICE_RESUME, rsize, MCEUSB_TX);
770 msleep(10);
771 }
772
773 mce_request_packet(ir, data, size, MCEUSB_TX);
774 msleep(10);
775 }
776
777 static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size)
778 {
779 mce_request_packet(ir, NULL, size, MCEUSB_RX);
780 }
781
782 /* Send data out the IR blaster port(s) */
783 static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
784 {
785 struct mceusb_dev *ir = dev->priv;
786 int i, ret = 0;
787 int cmdcount = 0;
788 unsigned char *cmdbuf; /* MCE command buffer */
789 long signal_duration = 0; /* Singnal length in us */
790 struct timeval start_time, end_time;
791
792 do_gettimeofday(&start_time);
793
794 cmdbuf = kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE, GFP_KERNEL);
795 if (!cmdbuf)
796 return -ENOMEM;
797
798 /* MCE tx init header */
799 cmdbuf[cmdcount++] = MCE_CMD_PORT_IR;
800 cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS;
801 cmdbuf[cmdcount++] = ir->tx_mask;
802
803 /* Generate mce packet data */
804 for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
805 signal_duration += txbuf[i];
806 txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
807
808 do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
809
810 /* Insert mce packet header every 4th entry */
811 if ((cmdcount < MCE_CMDBUF_SIZE) &&
812 (cmdcount - MCE_TX_HEADER_LENGTH) %
813 MCE_CODE_LENGTH == 0)
814 cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
815
816 /* Insert mce packet data */
817 if (cmdcount < MCE_CMDBUF_SIZE)
818 cmdbuf[cmdcount++] =
819 (txbuf[i] < MCE_PULSE_BIT ?
820 txbuf[i] : MCE_MAX_PULSE_LENGTH) |
821 (i & 1 ? 0x00 : MCE_PULSE_BIT);
822 else {
823 ret = -EINVAL;
824 goto out;
825 }
826
827 } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
828 (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
829 }
830
831 /* Fix packet length in last header */
832 cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
833 MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) %
834 MCE_CODE_LENGTH - 1;
835
836 /* Check if we have room for the empty packet at the end */
837 if (cmdcount >= MCE_CMDBUF_SIZE) {
838 ret = -EINVAL;
839 goto out;
840 }
841
842 /* All mce commands end with an empty packet (0x80) */
843 cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
844
845 /* Transmit the command to the mce device */
846 mce_async_out(ir, cmdbuf, cmdcount);
847
848 /*
849 * The lircd gap calculation expects the write function to
850 * wait the time it takes for the ircommand to be sent before
851 * it returns.
852 */
853 do_gettimeofday(&end_time);
854 signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
855 (end_time.tv_sec - start_time.tv_sec) * 1000000;
856
857 /* delay with the closest number of ticks */
858 set_current_state(TASK_INTERRUPTIBLE);
859 schedule_timeout(usecs_to_jiffies(signal_duration));
860
861 out:
862 kfree(cmdbuf);
863 return ret ? ret : count;
864 }
865
866 /* Sets active IR outputs -- mce devices typically have two */
867 static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
868 {
869 struct mceusb_dev *ir = dev->priv;
870
871 if (ir->flags.tx_mask_normal)
872 ir->tx_mask = mask;
873 else
874 ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
875 mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
876
877 return 0;
878 }
879
880 /* Sets the send carrier frequency and mode */
881 static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
882 {
883 struct mceusb_dev *ir = dev->priv;
884 int clk = 10000000;
885 int prescaler = 0, divisor = 0;
886 unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR,
887 MCE_CMD_SETIRCFS, 0x00, 0x00 };
888
889 /* Carrier has changed */
890 if (ir->carrier != carrier) {
891
892 if (carrier == 0) {
893 ir->carrier = carrier;
894 cmdbuf[2] = MCE_CMD_SIG_END;
895 cmdbuf[3] = MCE_IRDATA_TRAILER;
896 mce_dbg(ir->dev, "%s: disabling carrier "
897 "modulation\n", __func__);
898 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
899 return carrier;
900 }
901
902 for (prescaler = 0; prescaler < 4; ++prescaler) {
903 divisor = (clk >> (2 * prescaler)) / carrier;
904 if (divisor <= 0xff) {
905 ir->carrier = carrier;
906 cmdbuf[2] = prescaler;
907 cmdbuf[3] = divisor;
908 mce_dbg(ir->dev, "%s: requesting %u HZ "
909 "carrier\n", __func__, carrier);
910
911 /* Transmit new carrier to mce device */
912 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
913 return carrier;
914 }
915 }
916
917 return -EINVAL;
918
919 }
920
921 return carrier;
922 }
923
924 /*
925 * We don't do anything but print debug spew for many of the command bits
926 * we receive from the hardware, but some of them are useful information
927 * we want to store so that we can use them.
928 */
929 static void mceusb_handle_command(struct mceusb_dev *ir, int index)
930 {
931 u8 hi = ir->buf_in[index + 1] & 0xff;
932 u8 lo = ir->buf_in[index + 2] & 0xff;
933
934 switch (ir->buf_in[index]) {
935 /* the one and only 5-byte return value command */
936 case MCE_RSP_GETPORTSTATUS:
937 if ((ir->buf_in[index + 4] & 0xff) == 0x00)
938 ir->txports_cabled |= 1 << hi;
939 break;
940
941 /* 2-byte return value commands */
942 case MCE_RSP_EQIRTIMEOUT:
943 ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);
944 break;
945 case MCE_RSP_EQIRNUMPORTS:
946 ir->num_txports = hi;
947 ir->num_rxports = lo;
948 break;
949
950 /* 1-byte return value commands */
951 case MCE_RSP_EQEMVER:
952 ir->emver = hi;
953 break;
954 case MCE_RSP_EQIRTXPORTS:
955 ir->tx_mask = hi;
956 break;
957 case MCE_RSP_EQIRRXPORTEN:
958 ir->learning_enabled = ((hi & 0x02) == 0x02);
959 ir->rxports_active = hi;
960 break;
961 case MCE_RSP_CMD_ILLEGAL:
962 ir->need_reset = true;
963 break;
964 default:
965 break;
966 }
967 }
968
969 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
970 {
971 DEFINE_IR_RAW_EVENT(rawir);
972 int i = 0;
973
974 /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
975 if (ir->flags.microsoft_gen1)
976 i = 2;
977
978 /* if there's no data, just return now */
979 if (buf_len <= i)
980 return;
981
982 for (; i < buf_len; i++) {
983 switch (ir->parser_state) {
984 case SUBCMD:
985 ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
986 mceusb_dev_printdata(ir, ir->buf_in, i - 1,
987 ir->rem + 2, false);
988 mceusb_handle_command(ir, i);
989 ir->parser_state = CMD_DATA;
990 break;
991 case PARSE_IRDATA:
992 ir->rem--;
993 init_ir_raw_event(&rawir);
994 rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
995 rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
996 * US_TO_NS(MCE_TIME_UNIT);
997
998 mce_dbg(ir->dev, "Storing %s with duration %d\n",
999 rawir.pulse ? "pulse" : "space",
1000 rawir.duration);
1001
1002 ir_raw_event_store_with_filter(ir->rc, &rawir);
1003 break;
1004 case CMD_DATA:
1005 ir->rem--;
1006 break;
1007 case CMD_HEADER:
1008 /* decode mce packets of the form (84),AA,BB,CC,DD */
1009 /* IR data packets can span USB messages - rem */
1010 ir->cmd = ir->buf_in[i];
1011 if ((ir->cmd == MCE_CMD_PORT_IR) ||
1012 ((ir->cmd & MCE_PORT_MASK) !=
1013 MCE_COMMAND_IRDATA)) {
1014 ir->parser_state = SUBCMD;
1015 continue;
1016 }
1017 ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
1018 mceusb_dev_printdata(ir, ir->buf_in,
1019 i, ir->rem + 1, false);
1020 if (ir->rem)
1021 ir->parser_state = PARSE_IRDATA;
1022 else
1023 ir_raw_event_reset(ir->rc);
1024 break;
1025 }
1026
1027 if (ir->parser_state != CMD_HEADER && !ir->rem)
1028 ir->parser_state = CMD_HEADER;
1029 }
1030 mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
1031 ir_raw_event_handle(ir->rc);
1032 }
1033
1034 static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
1035 {
1036 struct mceusb_dev *ir;
1037 int buf_len;
1038
1039 if (!urb)
1040 return;
1041
1042 ir = urb->context;
1043 if (!ir) {
1044 usb_unlink_urb(urb);
1045 return;
1046 }
1047
1048 buf_len = urb->actual_length;
1049
1050 if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
1051 ir->send_flags = SEND_FLAG_COMPLETE;
1052 mce_dbg(ir->dev, "setup answer received %d bytes\n",
1053 buf_len);
1054 }
1055
1056 switch (urb->status) {
1057 /* success */
1058 case 0:
1059 mceusb_process_ir_data(ir, buf_len);
1060 break;
1061
1062 case -ECONNRESET:
1063 case -ENOENT:
1064 case -ESHUTDOWN:
1065 usb_unlink_urb(urb);
1066 return;
1067
1068 case -EPIPE:
1069 default:
1070 mce_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
1071 break;
1072 }
1073
1074 usb_submit_urb(urb, GFP_ATOMIC);
1075 }
1076
1077 static void mceusb_get_emulator_version(struct mceusb_dev *ir)
1078 {
1079 /* If we get no reply or an illegal command reply, its ver 1, says MS */
1080 ir->emver = 1;
1081 mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER));
1082 }
1083
1084 static void mceusb_gen1_init(struct mceusb_dev *ir)
1085 {
1086 int ret;
1087 struct device *dev = ir->dev;
1088 char *data;
1089
1090 data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
1091 if (!data) {
1092 dev_err(dev, "%s: memory allocation failed!\n", __func__);
1093 return;
1094 }
1095
1096 /*
1097 * This is a strange one. Windows issues a set address to the device
1098 * on the receive control pipe and expect a certain value pair back
1099 */
1100 ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
1101 USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
1102 data, USB_CTRL_MSG_SZ, HZ * 3);
1103 mce_dbg(dev, "%s - ret = %d\n", __func__, ret);
1104 mce_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
1105 __func__, data[0], data[1]);
1106
1107 /* set feature: bit rate 38400 bps */
1108 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1109 USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
1110 0xc04e, 0x0000, NULL, 0, HZ * 3);
1111
1112 mce_dbg(dev, "%s - ret = %d\n", __func__, ret);
1113
1114 /* bRequest 4: set char length to 8 bits */
1115 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1116 4, USB_TYPE_VENDOR,
1117 0x0808, 0x0000, NULL, 0, HZ * 3);
1118 mce_dbg(dev, "%s - retB = %d\n", __func__, ret);
1119
1120 /* bRequest 2: set handshaking to use DTR/DSR */
1121 ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
1122 2, USB_TYPE_VENDOR,
1123 0x0000, 0x0100, NULL, 0, HZ * 3);
1124 mce_dbg(dev, "%s - retC = %d\n", __func__, ret);
1125
1126 /* device resume */
1127 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
1128
1129 /* get hw/sw revision? */
1130 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1131
1132 kfree(data);
1133 };
1134
1135 static void mceusb_gen2_init(struct mceusb_dev *ir)
1136 {
1137 /* device resume */
1138 mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));
1139
1140 /* get hw/sw revision? */
1141 mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
1142
1143 /* get wake version (protocol, key, address) */
1144 mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION));
1145
1146 /* unknown what this one actually returns... */
1147 mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
1148 }
1149
1150 static void mceusb_get_parameters(struct mceusb_dev *ir)
1151 {
1152 int i;
1153 unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS,
1154 MCE_CMD_GETPORTSTATUS, 0x00 };
1155
1156 /* defaults, if the hardware doesn't support querying */
1157 ir->num_txports = 2;
1158 ir->num_rxports = 2;
1159
1160 /* get number of tx and rx ports */
1161 mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS));
1162
1163 /* get the carrier and frequency */
1164 mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
1165
1166 if (ir->num_txports && !ir->flags.no_tx)
1167 /* get the transmitter bitmask */
1168 mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
1169
1170 /* get receiver timeout value */
1171 mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
1172
1173 /* get receiver sensor setting */
1174 mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
1175
1176 for (i = 0; i < ir->num_txports; i++) {
1177 cmdbuf[2] = i;
1178 mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
1179 }
1180 }
1181
1182 static void mceusb_flash_led(struct mceusb_dev *ir)
1183 {
1184 if (ir->emver < 2)
1185 return;
1186
1187 mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED));
1188 }
1189
1190 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
1191 {
1192 struct device *dev = ir->dev;
1193 struct rc_dev *rc;
1194 int ret;
1195
1196 rc = rc_allocate_device();
1197 if (!rc) {
1198 dev_err(dev, "remote dev allocation failed\n");
1199 goto out;
1200 }
1201
1202 snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
1203 mceusb_model[ir->model].name ?
1204 mceusb_model[ir->model].name :
1205 "Media Center Ed. eHome Infrared Remote Transceiver",
1206 le16_to_cpu(ir->usbdev->descriptor.idVendor),
1207 le16_to_cpu(ir->usbdev->descriptor.idProduct));
1208
1209 usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
1210
1211 rc->input_name = ir->name;
1212 rc->input_phys = ir->phys;
1213 usb_to_input_id(ir->usbdev, &rc->input_id);
1214 rc->dev.parent = dev;
1215 rc->priv = ir;
1216 rc->driver_type = RC_DRIVER_IR_RAW;
1217 rc->allowed_protos = RC_TYPE_ALL;
1218 rc->timeout = MS_TO_NS(100);
1219 if (!ir->flags.no_tx) {
1220 rc->s_tx_mask = mceusb_set_tx_mask;
1221 rc->s_tx_carrier = mceusb_set_tx_carrier;
1222 rc->tx_ir = mceusb_tx_ir;
1223 }
1224 rc->driver_name = DRIVER_NAME;
1225 rc->map_name = mceusb_model[ir->model].rc_map ?
1226 mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE;
1227
1228 ret = rc_register_device(rc);
1229 if (ret < 0) {
1230 dev_err(dev, "remote dev registration failed\n");
1231 goto out;
1232 }
1233
1234 return rc;
1235
1236 out:
1237 rc_free_device(rc);
1238 return NULL;
1239 }
1240
1241 static int __devinit mceusb_dev_probe(struct usb_interface *intf,
1242 const struct usb_device_id *id)
1243 {
1244 struct usb_device *dev = interface_to_usbdev(intf);
1245 struct usb_host_interface *idesc;
1246 struct usb_endpoint_descriptor *ep = NULL;
1247 struct usb_endpoint_descriptor *ep_in = NULL;
1248 struct usb_endpoint_descriptor *ep_out = NULL;
1249 struct mceusb_dev *ir = NULL;
1250 int pipe, maxp, i;
1251 char buf[63], name[128] = "";
1252 enum mceusb_model_type model = id->driver_info;
1253 bool is_gen3;
1254 bool is_microsoft_gen1;
1255 bool tx_mask_normal;
1256 int ir_intfnum;
1257
1258 mce_dbg(&intf->dev, "%s called\n", __func__);
1259
1260 idesc = intf->cur_altsetting;
1261
1262 is_gen3 = mceusb_model[model].mce_gen3;
1263 is_microsoft_gen1 = mceusb_model[model].mce_gen1;
1264 tx_mask_normal = mceusb_model[model].tx_mask_normal;
1265 ir_intfnum = mceusb_model[model].ir_intfnum;
1266
1267 /* There are multi-function devices with non-IR interfaces */
1268 if (idesc->desc.bInterfaceNumber != ir_intfnum)
1269 return -ENODEV;
1270
1271 /* step through the endpoints to find first bulk in and out endpoint */
1272 for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
1273 ep = &idesc->endpoint[i].desc;
1274
1275 if ((ep_in == NULL)
1276 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1277 == USB_DIR_IN)
1278 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1279 == USB_ENDPOINT_XFER_BULK)
1280 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1281 == USB_ENDPOINT_XFER_INT))) {
1282
1283 ep_in = ep;
1284 ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
1285 ep_in->bInterval = 1;
1286 mce_dbg(&intf->dev, "acceptable inbound endpoint "
1287 "found\n");
1288 }
1289
1290 if ((ep_out == NULL)
1291 && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1292 == USB_DIR_OUT)
1293 && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1294 == USB_ENDPOINT_XFER_BULK)
1295 || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1296 == USB_ENDPOINT_XFER_INT))) {
1297
1298 ep_out = ep;
1299 ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
1300 ep_out->bInterval = 1;
1301 mce_dbg(&intf->dev, "acceptable outbound endpoint "
1302 "found\n");
1303 }
1304 }
1305 if (ep_in == NULL) {
1306 mce_dbg(&intf->dev, "inbound and/or endpoint not found\n");
1307 return -ENODEV;
1308 }
1309
1310 pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
1311 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1312
1313 ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
1314 if (!ir)
1315 goto mem_alloc_fail;
1316
1317 ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
1318 if (!ir->buf_in)
1319 goto buf_in_alloc_fail;
1320
1321 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
1322 if (!ir->urb_in)
1323 goto urb_in_alloc_fail;
1324
1325 ir->usbdev = dev;
1326 ir->dev = &intf->dev;
1327 ir->len_in = maxp;
1328 ir->flags.microsoft_gen1 = is_microsoft_gen1;
1329 ir->flags.tx_mask_normal = tx_mask_normal;
1330 ir->flags.no_tx = mceusb_model[model].no_tx;
1331 ir->model = model;
1332
1333 /* Saving usb interface data for use by the transmitter routine */
1334 ir->usb_ep_in = ep_in;
1335 ir->usb_ep_out = ep_out;
1336
1337 if (dev->descriptor.iManufacturer
1338 && usb_string(dev, dev->descriptor.iManufacturer,
1339 buf, sizeof(buf)) > 0)
1340 strlcpy(name, buf, sizeof(name));
1341 if (dev->descriptor.iProduct
1342 && usb_string(dev, dev->descriptor.iProduct,
1343 buf, sizeof(buf)) > 0)
1344 snprintf(name + strlen(name), sizeof(name) - strlen(name),
1345 " %s", buf);
1346
1347 ir->rc = mceusb_init_rc_dev(ir);
1348 if (!ir->rc)
1349 goto rc_dev_fail;
1350
1351 /* wire up inbound data handler */
1352 usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
1353 maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
1354 ir->urb_in->transfer_dma = ir->dma_in;
1355 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1356
1357 /* flush buffers on the device */
1358 mce_dbg(&intf->dev, "Flushing receive buffers\n");
1359 mce_flush_rx_buffer(ir, maxp);
1360
1361 /* figure out which firmware/emulator version this hardware has */
1362 mceusb_get_emulator_version(ir);
1363
1364 /* initialize device */
1365 if (ir->flags.microsoft_gen1)
1366 mceusb_gen1_init(ir);
1367 else if (!is_gen3)
1368 mceusb_gen2_init(ir);
1369
1370 mceusb_get_parameters(ir);
1371
1372 mceusb_flash_led(ir);
1373
1374 if (!ir->flags.no_tx)
1375 mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
1376
1377 usb_set_intfdata(intf, ir);
1378
1379 /* enable wake via this device */
1380 device_set_wakeup_capable(ir->dev, true);
1381 device_set_wakeup_enable(ir->dev, true);
1382
1383 dev_info(&intf->dev, "Registered %s with mce emulator interface "
1384 "version %x\n", name, ir->emver);
1385 dev_info(&intf->dev, "%x tx ports (0x%x cabled) and "
1386 "%x rx sensors (0x%x active)\n",
1387 ir->num_txports, ir->txports_cabled,
1388 ir->num_rxports, ir->rxports_active);
1389
1390 return 0;
1391
1392 /* Error-handling path */
1393 rc_dev_fail:
1394 usb_free_urb(ir->urb_in);
1395 urb_in_alloc_fail:
1396 usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
1397 buf_in_alloc_fail:
1398 kfree(ir);
1399 mem_alloc_fail:
1400 dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
1401
1402 return -ENOMEM;
1403 }
1404
1405
1406 static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
1407 {
1408 struct usb_device *dev = interface_to_usbdev(intf);
1409 struct mceusb_dev *ir = usb_get_intfdata(intf);
1410
1411 usb_set_intfdata(intf, NULL);
1412
1413 if (!ir)
1414 return;
1415
1416 ir->usbdev = NULL;
1417 rc_unregister_device(ir->rc);
1418 usb_kill_urb(ir->urb_in);
1419 usb_free_urb(ir->urb_in);
1420 usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
1421
1422 kfree(ir);
1423 }
1424
1425 static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
1426 {
1427 struct mceusb_dev *ir = usb_get_intfdata(intf);
1428 dev_info(ir->dev, "suspend\n");
1429 usb_kill_urb(ir->urb_in);
1430 return 0;
1431 }
1432
1433 static int mceusb_dev_resume(struct usb_interface *intf)
1434 {
1435 struct mceusb_dev *ir = usb_get_intfdata(intf);
1436 dev_info(ir->dev, "resume\n");
1437 if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
1438 return -EIO;
1439 return 0;
1440 }
1441
1442 static struct usb_driver mceusb_dev_driver = {
1443 .name = DRIVER_NAME,
1444 .probe = mceusb_dev_probe,
1445 .disconnect = __devexit_p(mceusb_dev_disconnect),
1446 .suspend = mceusb_dev_suspend,
1447 .resume = mceusb_dev_resume,
1448 .reset_resume = mceusb_dev_resume,
1449 .id_table = mceusb_dev_table
1450 };
1451
1452 module_usb_driver(mceusb_dev_driver);
1453
1454 MODULE_DESCRIPTION(DRIVER_DESC);
1455 MODULE_AUTHOR(DRIVER_AUTHOR);
1456 MODULE_LICENSE("GPL");
1457 MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
1458
1459 module_param(debug, bool, S_IRUGO | S_IWUSR);
1460 MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux kernel - Deliverables
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