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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 | * | |
66e89522 JW |
18 | * |
19 | * This program is free software; you can redistribute it and/or modify | |
20 | * it under the terms of the GNU General Public License as published by | |
21 | * the Free Software Foundation; either version 2 of the License, or | |
22 | * (at your option) any later version. | |
23 | * | |
24 | * This program is distributed in the hope that it will be useful, | |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
28 | * | |
29 | * You should have received a copy of the GNU General Public License | |
30 | * along with this program; if not, write to the Free Software | |
31 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
32 | * | |
33 | */ | |
34 | ||
35 | #include <linux/device.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/slab.h> | |
635f76b2 PB |
38 | #include <linux/usb.h> |
39 | #include <linux/usb/input.h> | |
6bda9644 | 40 | #include <media/rc-core.h> |
66e89522 JW |
41 | |
42 | #define DRIVER_VERSION "1.91" | |
43 | #define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" | |
44 | #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ | |
45 | "device driver" | |
46 | #define DRIVER_NAME "mceusb" | |
47 | ||
4a883918 JW |
48 | #define USB_BUFLEN 32 /* USB reception buffer length */ |
49 | #define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */ | |
50 | #define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */ | |
66e89522 JW |
51 | |
52 | /* MCE constants */ | |
4a883918 JW |
53 | #define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */ |
54 | #define MCE_TIME_UNIT 50 /* Approx 50us resolution */ | |
55 | #define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */ | |
56 | #define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */ | |
57 | #define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */ | |
58 | #define MCE_IRDATA_TRAILER 0x80 /* End of IR data */ | |
59 | #define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */ | |
60 | #define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */ | |
61 | #define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */ | |
62 | #define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */ | |
63 | #define MCE_PULSE_MASK 0x7f /* Pulse mask */ | |
64 | #define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */ | |
65 | ||
66 | #define MCE_HW_CMD_HEADER 0xff /* MCE hardware command header */ | |
67 | #define MCE_COMMAND_HEADER 0x9f /* MCE command header */ | |
68 | #define MCE_COMMAND_MASK 0xe0 /* Mask out command bits */ | |
69 | #define MCE_COMMAND_NULL 0x00 /* These show up various places... */ | |
70 | /* if buf[i] & MCE_COMMAND_MASK == 0x80 and buf[i] != MCE_COMMAND_HEADER, | |
71 | * then we're looking at a raw IR data sample */ | |
72 | #define MCE_COMMAND_IRDATA 0x80 | |
73 | #define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */ | |
74 | ||
75 | /* Sub-commands, which follow MCE_COMMAND_HEADER or MCE_HW_CMD_HEADER */ | |
1cd50f25 | 76 | #define MCE_CMD_SIG_END 0x01 /* End of signal */ |
4a883918 JW |
77 | #define MCE_CMD_PING 0x03 /* Ping device */ |
78 | #define MCE_CMD_UNKNOWN 0x04 /* Unknown */ | |
79 | #define MCE_CMD_UNKNOWN2 0x05 /* Unknown */ | |
80 | #define MCE_CMD_S_CARRIER 0x06 /* Set TX carrier frequency */ | |
81 | #define MCE_CMD_G_CARRIER 0x07 /* Get TX carrier frequency */ | |
82 | #define MCE_CMD_S_TXMASK 0x08 /* Set TX port bitmask */ | |
83 | #define MCE_CMD_UNKNOWN3 0x09 /* Unknown */ | |
84 | #define MCE_CMD_UNKNOWN4 0x0a /* Unknown */ | |
85 | #define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */ | |
86 | #define MCE_CMD_S_TIMEOUT 0x0c /* Set RX timeout value */ | |
87 | #define MCE_CMD_G_TIMEOUT 0x0d /* Get RX timeout value */ | |
88 | #define MCE_CMD_UNKNOWN5 0x0e /* Unknown */ | |
89 | #define MCE_CMD_UNKNOWN6 0x0f /* Unknown */ | |
90 | #define MCE_CMD_G_RXPORTSTS 0x11 /* Get RX port status */ | |
91 | #define MCE_CMD_G_TXMASK 0x13 /* Set TX port bitmask */ | |
92 | #define MCE_CMD_S_RXSENSOR 0x14 /* Set RX sensor (std/learning) */ | |
93 | #define MCE_CMD_G_RXSENSOR 0x15 /* Get RX sensor (std/learning) */ | |
2ee95db2 | 94 | #define MCE_RSP_PULSE_COUNT 0x15 /* RX pulse count (only if learning) */ |
4a883918 JW |
95 | #define MCE_CMD_TX_PORTS 0x16 /* Get number of TX ports */ |
96 | #define MCE_CMD_G_WAKESRC 0x17 /* Get wake source */ | |
97 | #define MCE_CMD_UNKNOWN7 0x18 /* Unknown */ | |
98 | #define MCE_CMD_UNKNOWN8 0x19 /* Unknown */ | |
99 | #define MCE_CMD_UNKNOWN9 0x1b /* Unknown */ | |
100 | #define MCE_CMD_DEVICE_RESET 0xaa /* Reset the hardware */ | |
101 | #define MCE_RSP_CMD_INVALID 0xfe /* Invalid command issued */ | |
66e89522 JW |
102 | |
103 | ||
104 | /* module parameters */ | |
105 | #ifdef CONFIG_USB_DEBUG | |
106 | static int debug = 1; | |
107 | #else | |
108 | static int debug; | |
109 | #endif | |
110 | ||
111 | /* general constants */ | |
112 | #define SEND_FLAG_IN_PROGRESS 1 | |
113 | #define SEND_FLAG_COMPLETE 2 | |
114 | #define RECV_FLAG_IN_PROGRESS 3 | |
115 | #define RECV_FLAG_COMPLETE 4 | |
116 | ||
117 | #define MCEUSB_RX 1 | |
118 | #define MCEUSB_TX 2 | |
119 | ||
120 | #define VENDOR_PHILIPS 0x0471 | |
121 | #define VENDOR_SMK 0x0609 | |
122 | #define VENDOR_TATUNG 0x1460 | |
123 | #define VENDOR_GATEWAY 0x107b | |
124 | #define VENDOR_SHUTTLE 0x1308 | |
125 | #define VENDOR_SHUTTLE2 0x051c | |
126 | #define VENDOR_MITSUMI 0x03ee | |
127 | #define VENDOR_TOPSEED 0x1784 | |
128 | #define VENDOR_RICAVISION 0x179d | |
129 | #define VENDOR_ITRON 0x195d | |
130 | #define VENDOR_FIC 0x1509 | |
131 | #define VENDOR_LG 0x043e | |
132 | #define VENDOR_MICROSOFT 0x045e | |
133 | #define VENDOR_FORMOSA 0x147a | |
134 | #define VENDOR_FINTEK 0x1934 | |
135 | #define VENDOR_PINNACLE 0x2304 | |
136 | #define VENDOR_ECS 0x1019 | |
137 | #define VENDOR_WISTRON 0x0fb8 | |
138 | #define VENDOR_COMPRO 0x185b | |
139 | #define VENDOR_NORTHSTAR 0x04eb | |
140 | #define VENDOR_REALTEK 0x0bda | |
141 | #define VENDOR_TIVO 0x105a | |
56e92f60 | 142 | #define VENDOR_CONEXANT 0x0572 |
66e89522 | 143 | |
37dbd3a6 MCC |
144 | enum mceusb_model_type { |
145 | MCE_GEN2 = 0, /* Most boards */ | |
146 | MCE_GEN1, | |
147 | MCE_GEN3, | |
148 | MCE_GEN2_TX_INV, | |
149 | POLARIS_EVK, | |
6f6c625d | 150 | CX_HYBRID_TV, |
a6994eb0 | 151 | MULTIFUNCTION, |
37dbd3a6 MCC |
152 | }; |
153 | ||
154 | struct mceusb_model { | |
155 | u32 mce_gen1:1; | |
156 | u32 mce_gen2:1; | |
157 | u32 mce_gen3:1; | |
d8cc7fd7 | 158 | u32 tx_mask_normal:1; |
6f6c625d | 159 | u32 no_tx:1; |
37dbd3a6 | 160 | |
a6994eb0 JW |
161 | int ir_intfnum; |
162 | ||
17c2b1fd | 163 | const char *rc_map; /* Allow specify a per-board map */ |
3459d455 | 164 | const char *name; /* per-board name */ |
37dbd3a6 MCC |
165 | }; |
166 | ||
167 | static const struct mceusb_model mceusb_model[] = { | |
168 | [MCE_GEN1] = { | |
169 | .mce_gen1 = 1, | |
d8cc7fd7 | 170 | .tx_mask_normal = 1, |
37dbd3a6 MCC |
171 | }, |
172 | [MCE_GEN2] = { | |
173 | .mce_gen2 = 1, | |
174 | }, | |
175 | [MCE_GEN2_TX_INV] = { | |
176 | .mce_gen2 = 1, | |
d8cc7fd7 | 177 | .tx_mask_normal = 1, |
37dbd3a6 MCC |
178 | }, |
179 | [MCE_GEN3] = { | |
180 | .mce_gen3 = 1, | |
d8cc7fd7 | 181 | .tx_mask_normal = 1, |
37dbd3a6 MCC |
182 | }, |
183 | [POLARIS_EVK] = { | |
17c2b1fd MCC |
184 | /* |
185 | * In fact, the EVK is shipped without | |
186 | * remotes, but we should have something handy, | |
187 | * to allow testing it | |
188 | */ | |
15195d3a | 189 | .rc_map = RC_MAP_HAUPPAUGE, |
6f6c625d JW |
190 | .name = "Conexant Hybrid TV (cx231xx) MCE IR", |
191 | }, | |
192 | [CX_HYBRID_TV] = { | |
6f6c625d JW |
193 | .no_tx = 1, /* tx isn't wired up at all */ |
194 | .name = "Conexant Hybrid TV (cx231xx) MCE IR", | |
37dbd3a6 | 195 | }, |
a6994eb0 JW |
196 | [MULTIFUNCTION] = { |
197 | .mce_gen2 = 1, | |
198 | .ir_intfnum = 2, | |
199 | }, | |
37dbd3a6 MCC |
200 | }; |
201 | ||
66e89522 JW |
202 | static struct usb_device_id mceusb_dev_table[] = { |
203 | /* Original Microsoft MCE IR Transceiver (often HP-branded) */ | |
37dbd3a6 MCC |
204 | { USB_DEVICE(VENDOR_MICROSOFT, 0x006d), |
205 | .driver_info = MCE_GEN1 }, | |
66e89522 JW |
206 | /* Philips Infrared Transceiver - Sahara branded */ |
207 | { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, | |
208 | /* Philips Infrared Transceiver - HP branded */ | |
37dbd3a6 MCC |
209 | { USB_DEVICE(VENDOR_PHILIPS, 0x060c), |
210 | .driver_info = MCE_GEN2_TX_INV }, | |
66e89522 JW |
211 | /* Philips SRM5100 */ |
212 | { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, | |
213 | /* Philips Infrared Transceiver - Omaura */ | |
214 | { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, | |
215 | /* Philips Infrared Transceiver - Spinel plus */ | |
216 | { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, | |
217 | /* Philips eHome Infrared Transceiver */ | |
218 | { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, | |
c13df9cf JW |
219 | /* Philips/Spinel plus IR transceiver for ASUS */ |
220 | { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, | |
221 | /* Philips/Spinel plus IR transceiver for ASUS */ | |
222 | { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, | |
e296e127 JW |
223 | /* Philips IR transceiver (Dell branded) */ |
224 | { USB_DEVICE(VENDOR_PHILIPS, 0x2093) }, | |
a6994eb0 JW |
225 | /* Realtek MCE IR Receiver and card reader */ |
226 | { USB_DEVICE(VENDOR_REALTEK, 0x0161), | |
227 | .driver_info = MULTIFUNCTION }, | |
66e89522 | 228 | /* SMK/Toshiba G83C0004D410 */ |
37dbd3a6 MCC |
229 | { USB_DEVICE(VENDOR_SMK, 0x031d), |
230 | .driver_info = MCE_GEN2_TX_INV }, | |
66e89522 | 231 | /* SMK eHome Infrared Transceiver (Sony VAIO) */ |
37dbd3a6 MCC |
232 | { USB_DEVICE(VENDOR_SMK, 0x0322), |
233 | .driver_info = MCE_GEN2_TX_INV }, | |
66e89522 | 234 | /* bundled with Hauppauge PVR-150 */ |
37dbd3a6 MCC |
235 | { USB_DEVICE(VENDOR_SMK, 0x0334), |
236 | .driver_info = MCE_GEN2_TX_INV }, | |
66e89522 JW |
237 | /* SMK eHome Infrared Transceiver */ |
238 | { USB_DEVICE(VENDOR_SMK, 0x0338) }, | |
239 | /* Tatung eHome Infrared Transceiver */ | |
240 | { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, | |
241 | /* Shuttle eHome Infrared Transceiver */ | |
242 | { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, | |
243 | /* Shuttle eHome Infrared Transceiver */ | |
244 | { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, | |
245 | /* Gateway eHome Infrared Transceiver */ | |
246 | { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, | |
247 | /* Mitsumi */ | |
248 | { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, | |
249 | /* Topseed eHome Infrared Transceiver */ | |
37dbd3a6 MCC |
250 | { USB_DEVICE(VENDOR_TOPSEED, 0x0001), |
251 | .driver_info = MCE_GEN2_TX_INV }, | |
66e89522 | 252 | /* Topseed HP eHome Infrared Transceiver */ |
37dbd3a6 MCC |
253 | { USB_DEVICE(VENDOR_TOPSEED, 0x0006), |
254 | .driver_info = MCE_GEN2_TX_INV }, | |
66e89522 | 255 | /* Topseed eHome Infrared Transceiver */ |
37dbd3a6 MCC |
256 | { USB_DEVICE(VENDOR_TOPSEED, 0x0007), |
257 | .driver_info = MCE_GEN2_TX_INV }, | |
66e89522 | 258 | /* Topseed eHome Infrared Transceiver */ |
37dbd3a6 MCC |
259 | { USB_DEVICE(VENDOR_TOPSEED, 0x0008), |
260 | .driver_info = MCE_GEN3 }, | |
66e89522 | 261 | /* Topseed eHome Infrared Transceiver */ |
37dbd3a6 MCC |
262 | { USB_DEVICE(VENDOR_TOPSEED, 0x000a), |
263 | .driver_info = MCE_GEN2_TX_INV }, | |
66e89522 | 264 | /* Topseed eHome Infrared Transceiver */ |
37dbd3a6 | 265 | { USB_DEVICE(VENDOR_TOPSEED, 0x0011), |
7d9a46f9 | 266 | .driver_info = MCE_GEN3 }, |
66e89522 JW |
267 | /* Ricavision internal Infrared Transceiver */ |
268 | { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, | |
269 | /* Itron ione Libra Q-11 */ | |
270 | { USB_DEVICE(VENDOR_ITRON, 0x7002) }, | |
271 | /* FIC eHome Infrared Transceiver */ | |
272 | { USB_DEVICE(VENDOR_FIC, 0x9242) }, | |
273 | /* LG eHome Infrared Transceiver */ | |
274 | { USB_DEVICE(VENDOR_LG, 0x9803) }, | |
275 | /* Microsoft MCE Infrared Transceiver */ | |
276 | { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, | |
277 | /* Formosa eHome Infrared Transceiver */ | |
278 | { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, | |
279 | /* Formosa21 / eHome Infrared Receiver */ | |
280 | { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, | |
281 | /* Formosa aim / Trust MCE Infrared Receiver */ | |
282 | { USB_DEVICE(VENDOR_FORMOSA, 0xe017) }, | |
283 | /* Formosa Industrial Computing / Beanbag Emulation Device */ | |
284 | { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, | |
285 | /* Formosa21 / eHome Infrared Receiver */ | |
286 | { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, | |
287 | /* Formosa Industrial Computing AIM IR605/A */ | |
288 | { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, | |
289 | /* Formosa Industrial Computing */ | |
290 | { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, | |
fbb1f1b0 JW |
291 | /* Fintek eHome Infrared Transceiver (HP branded) */ |
292 | { USB_DEVICE(VENDOR_FINTEK, 0x5168) }, | |
66e89522 JW |
293 | /* Fintek eHome Infrared Transceiver */ |
294 | { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, | |
295 | /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ | |
296 | { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, | |
297 | /* Pinnacle Remote Kit */ | |
37dbd3a6 MCC |
298 | { USB_DEVICE(VENDOR_PINNACLE, 0x0225), |
299 | .driver_info = MCE_GEN3 }, | |
66e89522 JW |
300 | /* Elitegroup Computer Systems IR */ |
301 | { USB_DEVICE(VENDOR_ECS, 0x0f38) }, | |
302 | /* Wistron Corp. eHome Infrared Receiver */ | |
303 | { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, | |
304 | /* Compro K100 */ | |
305 | { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, | |
306 | /* Compro K100 v2 */ | |
307 | { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, | |
308 | /* Northstar Systems, Inc. eHome Infrared Transceiver */ | |
309 | { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, | |
310 | /* TiVo PC IR Receiver */ | |
311 | { USB_DEVICE(VENDOR_TIVO, 0x2000) }, | |
6f6c625d | 312 | /* Conexant Hybrid TV "Shelby" Polaris SDK */ |
37dbd3a6 MCC |
313 | { USB_DEVICE(VENDOR_CONEXANT, 0x58a1), |
314 | .driver_info = POLARIS_EVK }, | |
6f6c625d JW |
315 | /* Conexant Hybrid TV RDU253S Polaris */ |
316 | { USB_DEVICE(VENDOR_CONEXANT, 0x58a5), | |
317 | .driver_info = CX_HYBRID_TV }, | |
66e89522 JW |
318 | /* Terminating entry */ |
319 | { } | |
320 | }; | |
321 | ||
66e89522 JW |
322 | /* data structure for each usb transceiver */ |
323 | struct mceusb_dev { | |
324 | /* ir-core bits */ | |
d8b4b582 | 325 | struct rc_dev *rc; |
2ee95db2 JW |
326 | |
327 | /* optional features we can enable */ | |
328 | bool carrier_report_enabled; | |
329 | bool learning_enabled; | |
66e89522 JW |
330 | |
331 | /* core device bits */ | |
332 | struct device *dev; | |
66e89522 JW |
333 | |
334 | /* usb */ | |
335 | struct usb_device *usbdev; | |
336 | struct urb *urb_in; | |
337 | struct usb_endpoint_descriptor *usb_ep_in; | |
338 | struct usb_endpoint_descriptor *usb_ep_out; | |
339 | ||
340 | /* buffers and dma */ | |
341 | unsigned char *buf_in; | |
342 | unsigned int len_in; | |
2ee95db2 JW |
343 | dma_addr_t dma_in; |
344 | dma_addr_t dma_out; | |
39dc5c3a MCC |
345 | |
346 | enum { | |
347 | CMD_HEADER = 0, | |
348 | SUBCMD, | |
349 | CMD_DATA, | |
350 | PARSE_IRDATA, | |
351 | } parser_state; | |
39dc5c3a | 352 | |
2ee95db2 | 353 | u8 cmd, rem; /* Remaining IR data bytes in packet */ |
66e89522 JW |
354 | |
355 | struct { | |
356 | u32 connected:1; | |
d8cc7fd7 | 357 | u32 tx_mask_normal:1; |
66e89522 | 358 | u32 microsoft_gen1:1; |
6f6c625d | 359 | u32 no_tx:1; |
66e89522 JW |
360 | } flags; |
361 | ||
e23fb964 | 362 | /* transmit support */ |
66e89522 | 363 | int send_flags; |
e23fb964 JW |
364 | u32 carrier; |
365 | unsigned char tx_mask; | |
66e89522 JW |
366 | |
367 | char name[128]; | |
368 | char phys[64]; | |
37dbd3a6 | 369 | enum mceusb_model_type model; |
66e89522 JW |
370 | }; |
371 | ||
372 | /* | |
373 | * MCE Device Command Strings | |
374 | * Device command responses vary from device to device... | |
375 | * - DEVICE_RESET resets the hardware to its default state | |
376 | * - GET_REVISION fetches the hardware/software revision, common | |
377 | * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42 | |
378 | * - GET_CARRIER_FREQ gets the carrier mode and frequency of the | |
379 | * device, with replies in the form of 9f 06 MM FF, where MM is 0-3, | |
380 | * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is | |
381 | * ((clk / frequency) - 1) | |
382 | * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us, | |
383 | * response in the form of 9f 0c msb lsb | |
384 | * - GET_TX_BITMASK fetches the transmitter bitmask, replies in | |
385 | * the form of 9f 08 bm, where bm is the bitmask | |
386 | * - GET_RX_SENSOR fetches the RX sensor setting -- long-range | |
387 | * general use one or short-range learning one, in the form of | |
388 | * 9f 14 ss, where ss is either 01 for long-range or 02 for short | |
389 | * - SET_CARRIER_FREQ sets a new carrier mode and frequency | |
390 | * - SET_TX_BITMASK sets the transmitter bitmask | |
391 | * - SET_RX_TIMEOUT sets the receiver timeout | |
392 | * - SET_RX_SENSOR sets which receiver sensor to use | |
393 | */ | |
4a883918 JW |
394 | static char DEVICE_RESET[] = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER, |
395 | MCE_CMD_DEVICE_RESET}; | |
396 | static char GET_REVISION[] = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION}; | |
397 | static char GET_UNKNOWN[] = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7}; | |
398 | static char GET_UNKNOWN2[] = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2}; | |
399 | static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER}; | |
400 | static char GET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT}; | |
401 | static char GET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK}; | |
402 | static char GET_RX_SENSOR[] = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR}; | |
66e89522 JW |
403 | /* sub in desired values in lower byte or bytes for full command */ |
404 | /* FIXME: make use of these for transmit. | |
4a883918 JW |
405 | static char SET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, |
406 | MCE_CMD_S_CARRIER, 0x00, 0x00}; | |
407 | static char SET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00}; | |
408 | static char SET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, | |
409 | MCE_CMD_S_TIMEOUT, 0x00, 0x00}; | |
410 | static char SET_RX_SENSOR[] = {MCE_COMMAND_HEADER, | |
411 | MCE_CMD_S_RXSENSOR, 0x00}; | |
66e89522 JW |
412 | */ |
413 | ||
39dc5c3a MCC |
414 | static int mceusb_cmdsize(u8 cmd, u8 subcmd) |
415 | { | |
416 | int datasize = 0; | |
417 | ||
418 | switch (cmd) { | |
4a883918 JW |
419 | case MCE_COMMAND_NULL: |
420 | if (subcmd == MCE_HW_CMD_HEADER) | |
39dc5c3a MCC |
421 | datasize = 1; |
422 | break; | |
4a883918 | 423 | case MCE_HW_CMD_HEADER: |
39dc5c3a | 424 | switch (subcmd) { |
4a883918 | 425 | case MCE_CMD_G_REVISION: |
39dc5c3a MCC |
426 | datasize = 2; |
427 | break; | |
428 | } | |
4a883918 | 429 | case MCE_COMMAND_HEADER: |
39dc5c3a | 430 | switch (subcmd) { |
4a883918 JW |
431 | case MCE_CMD_UNKNOWN: |
432 | case MCE_CMD_S_CARRIER: | |
433 | case MCE_CMD_S_TIMEOUT: | |
2ee95db2 | 434 | case MCE_RSP_PULSE_COUNT: |
39dc5c3a MCC |
435 | datasize = 2; |
436 | break; | |
1cd50f25 | 437 | case MCE_CMD_SIG_END: |
4a883918 JW |
438 | case MCE_CMD_S_TXMASK: |
439 | case MCE_CMD_S_RXSENSOR: | |
39dc5c3a MCC |
440 | datasize = 1; |
441 | break; | |
442 | } | |
443 | } | |
444 | return datasize; | |
445 | } | |
446 | ||
66e89522 | 447 | static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf, |
36e9d260 | 448 | int offset, int len, bool out) |
66e89522 JW |
449 | { |
450 | char codes[USB_BUFLEN * 3 + 1]; | |
451 | char inout[9]; | |
66e89522 JW |
452 | u8 cmd, subcmd, data1, data2; |
453 | struct device *dev = ir->dev; | |
36e9d260 JW |
454 | int i, start, skip = 0; |
455 | ||
456 | if (!debug) | |
457 | return; | |
66e89522 | 458 | |
657290b6 | 459 | /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ |
29b4494b | 460 | if (ir->flags.microsoft_gen1 && !out && !offset) |
36e9d260 | 461 | skip = 2; |
66e89522 | 462 | |
36e9d260 | 463 | if (len <= skip) |
66e89522 JW |
464 | return; |
465 | ||
466 | for (i = 0; i < len && i < USB_BUFLEN; i++) | |
36e9d260 | 467 | snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff); |
66e89522 | 468 | |
36e9d260 | 469 | dev_info(dev, "%sx data: %s(length=%d)\n", |
66e89522 JW |
470 | (out ? "t" : "r"), codes, len); |
471 | ||
472 | if (out) | |
473 | strcpy(inout, "Request\0"); | |
474 | else | |
475 | strcpy(inout, "Got\0"); | |
476 | ||
36e9d260 JW |
477 | start = offset + skip; |
478 | cmd = buf[start] & 0xff; | |
479 | subcmd = buf[start + 1] & 0xff; | |
480 | data1 = buf[start + 2] & 0xff; | |
481 | data2 = buf[start + 3] & 0xff; | |
66e89522 JW |
482 | |
483 | switch (cmd) { | |
4a883918 JW |
484 | case MCE_COMMAND_NULL: |
485 | if ((subcmd == MCE_HW_CMD_HEADER) && | |
486 | (data1 == MCE_CMD_DEVICE_RESET)) | |
66e89522 JW |
487 | dev_info(dev, "Device reset requested\n"); |
488 | else | |
489 | dev_info(dev, "Unknown command 0x%02x 0x%02x\n", | |
490 | cmd, subcmd); | |
491 | break; | |
4a883918 | 492 | case MCE_HW_CMD_HEADER: |
66e89522 | 493 | switch (subcmd) { |
4a883918 | 494 | case MCE_CMD_G_REVISION: |
66e89522 JW |
495 | if (len == 2) |
496 | dev_info(dev, "Get hw/sw rev?\n"); | |
497 | else | |
498 | dev_info(dev, "hw/sw rev 0x%02x 0x%02x " | |
499 | "0x%02x 0x%02x\n", data1, data2, | |
36e9d260 | 500 | buf[start + 4], buf[start + 5]); |
66e89522 | 501 | break; |
4a883918 | 502 | case MCE_CMD_DEVICE_RESET: |
66e89522 JW |
503 | dev_info(dev, "Device reset requested\n"); |
504 | break; | |
4a883918 | 505 | case MCE_RSP_CMD_INVALID: |
66e89522 JW |
506 | dev_info(dev, "Previous command not supported\n"); |
507 | break; | |
4a883918 JW |
508 | case MCE_CMD_UNKNOWN7: |
509 | case MCE_CMD_UNKNOWN9: | |
66e89522 JW |
510 | default: |
511 | dev_info(dev, "Unknown command 0x%02x 0x%02x\n", | |
512 | cmd, subcmd); | |
513 | break; | |
514 | } | |
515 | break; | |
4a883918 | 516 | case MCE_COMMAND_HEADER: |
66e89522 | 517 | switch (subcmd) { |
1cd50f25 JW |
518 | case MCE_CMD_SIG_END: |
519 | dev_info(dev, "End of signal\n"); | |
520 | break; | |
4a883918 | 521 | case MCE_CMD_PING: |
66e89522 JW |
522 | dev_info(dev, "Ping\n"); |
523 | break; | |
4a883918 | 524 | case MCE_CMD_UNKNOWN: |
66e89522 JW |
525 | dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n", |
526 | data1, data2); | |
527 | break; | |
4a883918 | 528 | case MCE_CMD_S_CARRIER: |
66e89522 JW |
529 | dev_info(dev, "%s carrier mode and freq of " |
530 | "0x%02x 0x%02x\n", inout, data1, data2); | |
531 | break; | |
4a883918 | 532 | case MCE_CMD_G_CARRIER: |
66e89522 JW |
533 | dev_info(dev, "Get carrier mode and freq\n"); |
534 | break; | |
4a883918 | 535 | case MCE_CMD_S_TXMASK: |
66e89522 JW |
536 | dev_info(dev, "%s transmit blaster mask of 0x%02x\n", |
537 | inout, data1); | |
538 | break; | |
4a883918 | 539 | case MCE_CMD_S_TIMEOUT: |
66e89522 JW |
540 | /* value is in units of 50us, so x*50/100 or x/2 ms */ |
541 | dev_info(dev, "%s receive timeout of %d ms\n", | |
542 | inout, ((data1 << 8) | data2) / 2); | |
543 | break; | |
4a883918 | 544 | case MCE_CMD_G_TIMEOUT: |
66e89522 JW |
545 | dev_info(dev, "Get receive timeout\n"); |
546 | break; | |
4a883918 | 547 | case MCE_CMD_G_TXMASK: |
66e89522 JW |
548 | dev_info(dev, "Get transmit blaster mask\n"); |
549 | break; | |
4a883918 | 550 | case MCE_CMD_S_RXSENSOR: |
66e89522 JW |
551 | dev_info(dev, "%s %s-range receive sensor in use\n", |
552 | inout, data1 == 0x02 ? "short" : "long"); | |
553 | break; | |
4a883918 | 554 | case MCE_CMD_G_RXSENSOR: |
2ee95db2 JW |
555 | /* aka MCE_RSP_PULSE_COUNT */ |
556 | if (out) | |
66e89522 | 557 | dev_info(dev, "Get receive sensor\n"); |
2ee95db2 JW |
558 | else if (ir->learning_enabled) |
559 | dev_info(dev, "RX pulse count: %d\n", | |
66e89522 JW |
560 | ((data1 << 8) | data2)); |
561 | break; | |
4a883918 | 562 | case MCE_RSP_CMD_INVALID: |
66e89522 JW |
563 | dev_info(dev, "Error! Hardware is likely wedged...\n"); |
564 | break; | |
4a883918 JW |
565 | case MCE_CMD_UNKNOWN2: |
566 | case MCE_CMD_UNKNOWN3: | |
567 | case MCE_CMD_UNKNOWN5: | |
66e89522 JW |
568 | default: |
569 | dev_info(dev, "Unknown command 0x%02x 0x%02x\n", | |
570 | cmd, subcmd); | |
571 | break; | |
572 | } | |
573 | break; | |
574 | default: | |
575 | break; | |
576 | } | |
36e9d260 JW |
577 | |
578 | if (cmd == MCE_IRDATA_TRAILER) | |
579 | dev_info(dev, "End of raw IR data\n"); | |
580 | else if ((cmd != MCE_COMMAND_HEADER) && | |
581 | ((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA)) | |
582 | dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem); | |
66e89522 JW |
583 | } |
584 | ||
7c294402 | 585 | static void mce_async_callback(struct urb *urb, struct pt_regs *regs) |
66e89522 JW |
586 | { |
587 | struct mceusb_dev *ir; | |
588 | int len; | |
589 | ||
590 | if (!urb) | |
591 | return; | |
592 | ||
593 | ir = urb->context; | |
594 | if (ir) { | |
595 | len = urb->actual_length; | |
596 | ||
597 | dev_dbg(ir->dev, "callback called (status=%d len=%d)\n", | |
598 | urb->status, len); | |
599 | ||
36e9d260 | 600 | mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true); |
66e89522 JW |
601 | } |
602 | ||
603 | } | |
604 | ||
605 | /* request incoming or send outgoing usb packet - used to initialize remote */ | |
606 | static void mce_request_packet(struct mceusb_dev *ir, | |
607 | struct usb_endpoint_descriptor *ep, | |
608 | unsigned char *data, int size, int urb_type) | |
609 | { | |
610 | int res; | |
611 | struct urb *async_urb; | |
612 | struct device *dev = ir->dev; | |
613 | unsigned char *async_buf; | |
614 | ||
615 | if (urb_type == MCEUSB_TX) { | |
616 | async_urb = usb_alloc_urb(0, GFP_KERNEL); | |
617 | if (unlikely(!async_urb)) { | |
618 | dev_err(dev, "Error, couldn't allocate urb!\n"); | |
619 | return; | |
620 | } | |
621 | ||
622 | async_buf = kzalloc(size, GFP_KERNEL); | |
623 | if (!async_buf) { | |
624 | dev_err(dev, "Error, couldn't allocate buf!\n"); | |
625 | usb_free_urb(async_urb); | |
626 | return; | |
627 | } | |
628 | ||
629 | /* outbound data */ | |
630 | usb_fill_int_urb(async_urb, ir->usbdev, | |
631 | usb_sndintpipe(ir->usbdev, ep->bEndpointAddress), | |
7c294402 | 632 | async_buf, size, (usb_complete_t)mce_async_callback, |
66e89522 JW |
633 | ir, ep->bInterval); |
634 | memcpy(async_buf, data, size); | |
635 | ||
636 | } else if (urb_type == MCEUSB_RX) { | |
637 | /* standard request */ | |
638 | async_urb = ir->urb_in; | |
639 | ir->send_flags = RECV_FLAG_IN_PROGRESS; | |
640 | ||
641 | } else { | |
642 | dev_err(dev, "Error! Unknown urb type %d\n", urb_type); | |
643 | return; | |
644 | } | |
645 | ||
646 | dev_dbg(dev, "receive request called (size=%#x)\n", size); | |
647 | ||
648 | async_urb->transfer_buffer_length = size; | |
649 | async_urb->dev = ir->usbdev; | |
650 | ||
651 | res = usb_submit_urb(async_urb, GFP_ATOMIC); | |
652 | if (res) { | |
653 | dev_dbg(dev, "receive request FAILED! (res=%d)\n", res); | |
654 | return; | |
655 | } | |
656 | dev_dbg(dev, "receive request complete (res=%d)\n", res); | |
657 | } | |
658 | ||
659 | static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) | |
660 | { | |
661 | mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX); | |
662 | } | |
663 | ||
664 | static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size) | |
665 | { | |
666 | mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX); | |
667 | } | |
668 | ||
e23fb964 | 669 | /* Send data out the IR blaster port(s) */ |
d8b4b582 | 670 | static int mceusb_tx_ir(struct rc_dev *dev, int *txbuf, u32 n) |
e23fb964 | 671 | { |
d8b4b582 | 672 | struct mceusb_dev *ir = dev->priv; |
e23fb964 JW |
673 | int i, ret = 0; |
674 | int count, cmdcount = 0; | |
675 | unsigned char *cmdbuf; /* MCE command buffer */ | |
676 | long signal_duration = 0; /* Singnal length in us */ | |
677 | struct timeval start_time, end_time; | |
678 | ||
679 | do_gettimeofday(&start_time); | |
680 | ||
681 | count = n / sizeof(int); | |
682 | ||
683 | cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL); | |
684 | if (!cmdbuf) | |
685 | return -ENOMEM; | |
686 | ||
687 | /* MCE tx init header */ | |
4a883918 JW |
688 | cmdbuf[cmdcount++] = MCE_COMMAND_HEADER; |
689 | cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK; | |
e23fb964 JW |
690 | cmdbuf[cmdcount++] = ir->tx_mask; |
691 | ||
692 | /* Generate mce packet data */ | |
693 | for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { | |
694 | signal_duration += txbuf[i]; | |
695 | txbuf[i] = txbuf[i] / MCE_TIME_UNIT; | |
696 | ||
697 | do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ | |
698 | ||
699 | /* Insert mce packet header every 4th entry */ | |
700 | if ((cmdcount < MCE_CMDBUF_SIZE) && | |
701 | (cmdcount - MCE_TX_HEADER_LENGTH) % | |
702 | MCE_CODE_LENGTH == 0) | |
4a883918 | 703 | cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; |
e23fb964 JW |
704 | |
705 | /* Insert mce packet data */ | |
706 | if (cmdcount < MCE_CMDBUF_SIZE) | |
707 | cmdbuf[cmdcount++] = | |
708 | (txbuf[i] < MCE_PULSE_BIT ? | |
709 | txbuf[i] : MCE_MAX_PULSE_LENGTH) | | |
710 | (i & 1 ? 0x00 : MCE_PULSE_BIT); | |
711 | else { | |
712 | ret = -EINVAL; | |
713 | goto out; | |
714 | } | |
715 | ||
716 | } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && | |
717 | (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); | |
718 | } | |
719 | ||
720 | /* Fix packet length in last header */ | |
721 | cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] = | |
4a883918 JW |
722 | MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) % |
723 | MCE_CODE_LENGTH - 1; | |
e23fb964 JW |
724 | |
725 | /* Check if we have room for the empty packet at the end */ | |
726 | if (cmdcount >= MCE_CMDBUF_SIZE) { | |
727 | ret = -EINVAL; | |
728 | goto out; | |
729 | } | |
730 | ||
731 | /* All mce commands end with an empty packet (0x80) */ | |
4a883918 | 732 | cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; |
e23fb964 JW |
733 | |
734 | /* Transmit the command to the mce device */ | |
735 | mce_async_out(ir, cmdbuf, cmdcount); | |
736 | ||
737 | /* | |
738 | * The lircd gap calculation expects the write function to | |
739 | * wait the time it takes for the ircommand to be sent before | |
740 | * it returns. | |
741 | */ | |
742 | do_gettimeofday(&end_time); | |
743 | signal_duration -= (end_time.tv_usec - start_time.tv_usec) + | |
744 | (end_time.tv_sec - start_time.tv_sec) * 1000000; | |
745 | ||
746 | /* delay with the closest number of ticks */ | |
747 | set_current_state(TASK_INTERRUPTIBLE); | |
748 | schedule_timeout(usecs_to_jiffies(signal_duration)); | |
749 | ||
750 | out: | |
751 | kfree(cmdbuf); | |
752 | return ret ? ret : n; | |
753 | } | |
754 | ||
6f6c625d | 755 | /* Sets active IR outputs -- mce devices typically have two */ |
d8b4b582 | 756 | static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) |
657290b6 | 757 | { |
d8b4b582 | 758 | struct mceusb_dev *ir = dev->priv; |
657290b6 | 759 | |
d8cc7fd7 JW |
760 | if (ir->flags.tx_mask_normal) |
761 | ir->tx_mask = mask; | |
762 | else | |
4a883918 JW |
763 | ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? |
764 | mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; | |
657290b6 JW |
765 | |
766 | return 0; | |
767 | } | |
768 | ||
e23fb964 | 769 | /* Sets the send carrier frequency and mode */ |
d8b4b582 | 770 | static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier) |
e23fb964 | 771 | { |
d8b4b582 | 772 | struct mceusb_dev *ir = dev->priv; |
e23fb964 JW |
773 | int clk = 10000000; |
774 | int prescaler = 0, divisor = 0; | |
4a883918 JW |
775 | unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER, |
776 | MCE_CMD_S_CARRIER, 0x00, 0x00 }; | |
e23fb964 JW |
777 | |
778 | /* Carrier has changed */ | |
779 | if (ir->carrier != carrier) { | |
780 | ||
781 | if (carrier == 0) { | |
782 | ir->carrier = carrier; | |
1cd50f25 | 783 | cmdbuf[2] = MCE_CMD_SIG_END; |
4a883918 | 784 | cmdbuf[3] = MCE_IRDATA_TRAILER; |
e23fb964 JW |
785 | dev_dbg(ir->dev, "%s: disabling carrier " |
786 | "modulation\n", __func__); | |
787 | mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); | |
788 | return carrier; | |
789 | } | |
790 | ||
791 | for (prescaler = 0; prescaler < 4; ++prescaler) { | |
792 | divisor = (clk >> (2 * prescaler)) / carrier; | |
4a883918 | 793 | if (divisor <= 0xff) { |
e23fb964 JW |
794 | ir->carrier = carrier; |
795 | cmdbuf[2] = prescaler; | |
796 | cmdbuf[3] = divisor; | |
797 | dev_dbg(ir->dev, "%s: requesting %u HZ " | |
798 | "carrier\n", __func__, carrier); | |
799 | ||
800 | /* Transmit new carrier to mce device */ | |
801 | mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); | |
802 | return carrier; | |
803 | } | |
804 | } | |
805 | ||
806 | return -EINVAL; | |
807 | ||
808 | } | |
809 | ||
810 | return carrier; | |
811 | } | |
812 | ||
2ee95db2 JW |
813 | /* |
814 | * We don't do anything but print debug spew for many of the command bits | |
815 | * we receive from the hardware, but some of them are useful information | |
816 | * we want to store so that we can use them. | |
817 | */ | |
818 | static void mceusb_handle_command(struct mceusb_dev *ir, int index) | |
819 | { | |
820 | u8 hi = ir->buf_in[index + 1] & 0xff; | |
821 | u8 lo = ir->buf_in[index + 2] & 0xff; | |
822 | ||
823 | switch (ir->buf_in[index]) { | |
824 | /* 2-byte return value commands */ | |
825 | case MCE_CMD_S_TIMEOUT: | |
b4608fae | 826 | ir->rc->timeout = US_TO_NS((hi << 8 | lo) / 2); |
2ee95db2 JW |
827 | break; |
828 | ||
829 | /* 1-byte return value commands */ | |
830 | case MCE_CMD_S_TXMASK: | |
831 | ir->tx_mask = hi; | |
832 | break; | |
833 | case MCE_CMD_S_RXSENSOR: | |
834 | ir->learning_enabled = (hi == 0x02); | |
835 | break; | |
836 | default: | |
837 | break; | |
838 | } | |
839 | } | |
840 | ||
66e89522 JW |
841 | static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) |
842 | { | |
4651918a | 843 | DEFINE_IR_RAW_EVENT(rawir); |
39dc5c3a | 844 | int i = 0; |
66e89522 JW |
845 | |
846 | /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ | |
847 | if (ir->flags.microsoft_gen1) | |
39dc5c3a | 848 | i = 2; |
66e89522 | 849 | |
29b4494b JW |
850 | /* if there's no data, just return now */ |
851 | if (buf_len <= i) | |
852 | return; | |
853 | ||
39dc5c3a MCC |
854 | for (; i < buf_len; i++) { |
855 | switch (ir->parser_state) { | |
856 | case SUBCMD: | |
857 | ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]); | |
36e9d260 JW |
858 | mceusb_dev_printdata(ir, ir->buf_in, i - 1, |
859 | ir->rem + 2, false); | |
2ee95db2 | 860 | mceusb_handle_command(ir, i); |
39dc5c3a MCC |
861 | ir->parser_state = CMD_DATA; |
862 | break; | |
863 | case PARSE_IRDATA: | |
66e89522 | 864 | ir->rem--; |
5bd9d73c | 865 | init_ir_raw_event(&rawir); |
66e89522 JW |
866 | rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); |
867 | rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK) | |
b4608fae | 868 | * US_TO_NS(MCE_TIME_UNIT); |
66e89522 | 869 | |
66e89522 JW |
870 | dev_dbg(ir->dev, "Storing %s with duration %d\n", |
871 | rawir.pulse ? "pulse" : "space", | |
872 | rawir.duration); | |
873 | ||
d8b4b582 | 874 | ir_raw_event_store_with_filter(ir->rc, &rawir); |
39dc5c3a MCC |
875 | break; |
876 | case CMD_DATA: | |
877 | ir->rem--; | |
878 | break; | |
879 | case CMD_HEADER: | |
880 | /* decode mce packets of the form (84),AA,BB,CC,DD */ | |
881 | /* IR data packets can span USB messages - rem */ | |
882 | ir->cmd = ir->buf_in[i]; | |
4a883918 JW |
883 | if ((ir->cmd == MCE_COMMAND_HEADER) || |
884 | ((ir->cmd & MCE_COMMAND_MASK) != | |
885 | MCE_COMMAND_IRDATA)) { | |
39dc5c3a MCC |
886 | ir->parser_state = SUBCMD; |
887 | continue; | |
888 | } | |
889 | ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); | |
2ee95db2 JW |
890 | mceusb_dev_printdata(ir, ir->buf_in, |
891 | i, ir->rem + 1, false); | |
1cd50f25 | 892 | if (ir->rem) |
39dc5c3a | 893 | ir->parser_state = PARSE_IRDATA; |
5bd9d73c JW |
894 | else |
895 | ir_raw_event_reset(ir->rc); | |
39dc5c3a | 896 | break; |
66e89522 JW |
897 | } |
898 | ||
39dc5c3a MCC |
899 | if (ir->parser_state != CMD_HEADER && !ir->rem) |
900 | ir->parser_state = CMD_HEADER; | |
66e89522 | 901 | } |
39dc5c3a | 902 | dev_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n"); |
d8b4b582 | 903 | ir_raw_event_handle(ir->rc); |
66e89522 JW |
904 | } |
905 | ||
66e89522 JW |
906 | static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs) |
907 | { | |
908 | struct mceusb_dev *ir; | |
909 | int buf_len; | |
910 | ||
911 | if (!urb) | |
912 | return; | |
913 | ||
914 | ir = urb->context; | |
915 | if (!ir) { | |
916 | usb_unlink_urb(urb); | |
917 | return; | |
918 | } | |
919 | ||
920 | buf_len = urb->actual_length; | |
921 | ||
66e89522 JW |
922 | if (ir->send_flags == RECV_FLAG_IN_PROGRESS) { |
923 | ir->send_flags = SEND_FLAG_COMPLETE; | |
7a9fcb41 | 924 | dev_dbg(ir->dev, "setup answer received %d bytes\n", |
66e89522 JW |
925 | buf_len); |
926 | } | |
927 | ||
928 | switch (urb->status) { | |
929 | /* success */ | |
930 | case 0: | |
931 | mceusb_process_ir_data(ir, buf_len); | |
932 | break; | |
933 | ||
934 | case -ECONNRESET: | |
935 | case -ENOENT: | |
936 | case -ESHUTDOWN: | |
937 | usb_unlink_urb(urb); | |
938 | return; | |
939 | ||
940 | case -EPIPE: | |
941 | default: | |
39dc5c3a | 942 | dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status); |
66e89522 JW |
943 | break; |
944 | } | |
945 | ||
946 | usb_submit_urb(urb, GFP_ATOMIC); | |
947 | } | |
948 | ||
949 | static void mceusb_gen1_init(struct mceusb_dev *ir) | |
950 | { | |
ca17a4f0 | 951 | int ret; |
22b0766b | 952 | int maxp = ir->len_in; |
66e89522 | 953 | struct device *dev = ir->dev; |
b48592e4 | 954 | char *data; |
657290b6 JW |
955 | |
956 | data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); | |
957 | if (!data) { | |
958 | dev_err(dev, "%s: memory allocation failed!\n", __func__); | |
657290b6 JW |
959 | return; |
960 | } | |
66e89522 JW |
961 | |
962 | /* | |
b48592e4 | 963 | * This is a strange one. Windows issues a set address to the device |
66e89522 JW |
964 | * on the receive control pipe and expect a certain value pair back |
965 | */ | |
66e89522 JW |
966 | ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), |
967 | USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, | |
657290b6 | 968 | data, USB_CTRL_MSG_SZ, HZ * 3); |
66e89522 JW |
969 | dev_dbg(dev, "%s - ret = %d\n", __func__, ret); |
970 | dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n", | |
971 | __func__, data[0], data[1]); | |
972 | ||
973 | /* set feature: bit rate 38400 bps */ | |
974 | ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), | |
975 | USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, | |
976 | 0xc04e, 0x0000, NULL, 0, HZ * 3); | |
977 | ||
978 | dev_dbg(dev, "%s - ret = %d\n", __func__, ret); | |
979 | ||
980 | /* bRequest 4: set char length to 8 bits */ | |
981 | ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), | |
982 | 4, USB_TYPE_VENDOR, | |
983 | 0x0808, 0x0000, NULL, 0, HZ * 3); | |
984 | dev_dbg(dev, "%s - retB = %d\n", __func__, ret); | |
985 | ||
986 | /* bRequest 2: set handshaking to use DTR/DSR */ | |
987 | ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), | |
988 | 2, USB_TYPE_VENDOR, | |
989 | 0x0000, 0x0100, NULL, 0, HZ * 3); | |
990 | dev_dbg(dev, "%s - retC = %d\n", __func__, ret); | |
657290b6 | 991 | |
22b0766b JW |
992 | /* device reset */ |
993 | mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET)); | |
994 | mce_sync_in(ir, NULL, maxp); | |
995 | ||
996 | /* get hw/sw revision? */ | |
997 | mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); | |
998 | mce_sync_in(ir, NULL, maxp); | |
999 | ||
657290b6 | 1000 | kfree(data); |
66e89522 JW |
1001 | }; |
1002 | ||
1003 | static void mceusb_gen2_init(struct mceusb_dev *ir) | |
1004 | { | |
1005 | int maxp = ir->len_in; | |
1006 | ||
66e89522 JW |
1007 | /* device reset */ |
1008 | mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET)); | |
1009 | mce_sync_in(ir, NULL, maxp); | |
1010 | ||
1011 | /* get hw/sw revision? */ | |
1012 | mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); | |
1013 | mce_sync_in(ir, NULL, maxp); | |
1014 | ||
22b0766b | 1015 | /* unknown what the next two actually return... */ |
66e89522 JW |
1016 | mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN)); |
1017 | mce_sync_in(ir, NULL, maxp); | |
22b0766b JW |
1018 | mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); |
1019 | mce_sync_in(ir, NULL, maxp); | |
66e89522 JW |
1020 | } |
1021 | ||
22b0766b | 1022 | static void mceusb_get_parameters(struct mceusb_dev *ir) |
66e89522 JW |
1023 | { |
1024 | int maxp = ir->len_in; | |
1025 | ||
66e89522 JW |
1026 | /* get the carrier and frequency */ |
1027 | mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); | |
1028 | mce_sync_in(ir, NULL, maxp); | |
1029 | ||
6f6c625d JW |
1030 | if (!ir->flags.no_tx) { |
1031 | /* get the transmitter bitmask */ | |
1032 | mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); | |
1033 | mce_sync_in(ir, NULL, maxp); | |
1034 | } | |
66e89522 JW |
1035 | |
1036 | /* get receiver timeout value */ | |
1037 | mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); | |
1038 | mce_sync_in(ir, NULL, maxp); | |
1039 | ||
1040 | /* get receiver sensor setting */ | |
1041 | mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); | |
1042 | mce_sync_in(ir, NULL, maxp); | |
1043 | } | |
1044 | ||
d8b4b582 | 1045 | static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) |
66e89522 | 1046 | { |
66e89522 | 1047 | struct device *dev = ir->dev; |
d8b4b582 DH |
1048 | struct rc_dev *rc; |
1049 | int ret; | |
66e89522 | 1050 | |
d8b4b582 DH |
1051 | rc = rc_allocate_device(); |
1052 | if (!rc) { | |
1053 | dev_err(dev, "remote dev allocation failed\n"); | |
1054 | goto out; | |
66e89522 JW |
1055 | } |
1056 | ||
3459d455 | 1057 | snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", |
d8b4b582 | 1058 | mceusb_model[ir->model].name ? |
5ad1a555 | 1059 | mceusb_model[ir->model].name : |
d8b4b582 | 1060 | "Media Center Ed. eHome Infrared Remote Transceiver", |
66e89522 JW |
1061 | le16_to_cpu(ir->usbdev->descriptor.idVendor), |
1062 | le16_to_cpu(ir->usbdev->descriptor.idProduct)); | |
1063 | ||
66e89522 | 1064 | usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); |
66e89522 | 1065 | |
d8b4b582 DH |
1066 | rc->input_name = ir->name; |
1067 | rc->input_phys = ir->phys; | |
1068 | usb_to_input_id(ir->usbdev, &rc->input_id); | |
1069 | rc->dev.parent = dev; | |
1070 | rc->priv = ir; | |
1071 | rc->driver_type = RC_DRIVER_IR_RAW; | |
52b66144 | 1072 | rc->allowed_protos = RC_TYPE_ALL; |
b4608fae | 1073 | rc->timeout = US_TO_NS(1000); |
6f6c625d | 1074 | if (!ir->flags.no_tx) { |
d8b4b582 DH |
1075 | rc->s_tx_mask = mceusb_set_tx_mask; |
1076 | rc->s_tx_carrier = mceusb_set_tx_carrier; | |
1077 | rc->tx_ir = mceusb_tx_ir; | |
6f6c625d | 1078 | } |
d8b4b582 DH |
1079 | rc->driver_name = DRIVER_NAME; |
1080 | rc->map_name = mceusb_model[ir->model].rc_map ? | |
1081 | mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE; | |
66e89522 | 1082 | |
d8b4b582 | 1083 | ret = rc_register_device(rc); |
66e89522 | 1084 | if (ret < 0) { |
d8b4b582 DH |
1085 | dev_err(dev, "remote dev registration failed\n"); |
1086 | goto out; | |
66e89522 JW |
1087 | } |
1088 | ||
d8b4b582 | 1089 | return rc; |
66e89522 | 1090 | |
d8b4b582 DH |
1091 | out: |
1092 | rc_free_device(rc); | |
66e89522 JW |
1093 | return NULL; |
1094 | } | |
1095 | ||
1096 | static int __devinit mceusb_dev_probe(struct usb_interface *intf, | |
1097 | const struct usb_device_id *id) | |
1098 | { | |
1099 | struct usb_device *dev = interface_to_usbdev(intf); | |
1100 | struct usb_host_interface *idesc; | |
1101 | struct usb_endpoint_descriptor *ep = NULL; | |
1102 | struct usb_endpoint_descriptor *ep_in = NULL; | |
1103 | struct usb_endpoint_descriptor *ep_out = NULL; | |
66e89522 | 1104 | struct mceusb_dev *ir = NULL; |
d732a72d | 1105 | int pipe, maxp, i; |
66e89522 | 1106 | char buf[63], name[128] = ""; |
37dbd3a6 | 1107 | enum mceusb_model_type model = id->driver_info; |
66e89522 JW |
1108 | bool is_gen3; |
1109 | bool is_microsoft_gen1; | |
d8cc7fd7 | 1110 | bool tx_mask_normal; |
a6994eb0 | 1111 | int ir_intfnum; |
66e89522 | 1112 | |
1cd50f25 | 1113 | dev_dbg(&intf->dev, "%s called\n", __func__); |
66e89522 | 1114 | |
66e89522 JW |
1115 | idesc = intf->cur_altsetting; |
1116 | ||
37dbd3a6 MCC |
1117 | is_gen3 = mceusb_model[model].mce_gen3; |
1118 | is_microsoft_gen1 = mceusb_model[model].mce_gen1; | |
d8cc7fd7 | 1119 | tx_mask_normal = mceusb_model[model].tx_mask_normal; |
a6994eb0 | 1120 | ir_intfnum = mceusb_model[model].ir_intfnum; |
56e92f60 | 1121 | |
a6994eb0 JW |
1122 | /* There are multi-function devices with non-IR interfaces */ |
1123 | if (idesc->desc.bInterfaceNumber != ir_intfnum) | |
1124 | return -ENODEV; | |
66e89522 JW |
1125 | |
1126 | /* step through the endpoints to find first bulk in and out endpoint */ | |
1127 | for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { | |
1128 | ep = &idesc->endpoint[i].desc; | |
1129 | ||
1130 | if ((ep_in == NULL) | |
1131 | && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) | |
1132 | == USB_DIR_IN) | |
1133 | && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) | |
1134 | == USB_ENDPOINT_XFER_BULK) | |
1135 | || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) | |
1136 | == USB_ENDPOINT_XFER_INT))) { | |
1137 | ||
66e89522 JW |
1138 | ep_in = ep; |
1139 | ep_in->bmAttributes = USB_ENDPOINT_XFER_INT; | |
d732a72d | 1140 | ep_in->bInterval = 1; |
1cd50f25 | 1141 | dev_dbg(&intf->dev, "acceptable inbound endpoint " |
d732a72d | 1142 | "found\n"); |
66e89522 JW |
1143 | } |
1144 | ||
1145 | if ((ep_out == NULL) | |
1146 | && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) | |
1147 | == USB_DIR_OUT) | |
1148 | && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) | |
1149 | == USB_ENDPOINT_XFER_BULK) | |
1150 | || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) | |
1151 | == USB_ENDPOINT_XFER_INT))) { | |
1152 | ||
66e89522 JW |
1153 | ep_out = ep; |
1154 | ep_out->bmAttributes = USB_ENDPOINT_XFER_INT; | |
d732a72d | 1155 | ep_out->bInterval = 1; |
1cd50f25 | 1156 | dev_dbg(&intf->dev, "acceptable outbound endpoint " |
d732a72d | 1157 | "found\n"); |
66e89522 JW |
1158 | } |
1159 | } | |
1160 | if (ep_in == NULL) { | |
1cd50f25 | 1161 | dev_dbg(&intf->dev, "inbound and/or endpoint not found\n"); |
66e89522 JW |
1162 | return -ENODEV; |
1163 | } | |
1164 | ||
1165 | pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); | |
1166 | maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); | |
1167 | ||
1168 | ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); | |
1169 | if (!ir) | |
1170 | goto mem_alloc_fail; | |
1171 | ||
1172 | ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in); | |
1173 | if (!ir->buf_in) | |
1174 | goto buf_in_alloc_fail; | |
1175 | ||
1176 | ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); | |
1177 | if (!ir->urb_in) | |
1178 | goto urb_in_alloc_fail; | |
1179 | ||
1180 | ir->usbdev = dev; | |
1181 | ir->dev = &intf->dev; | |
1182 | ir->len_in = maxp; | |
66e89522 | 1183 | ir->flags.microsoft_gen1 = is_microsoft_gen1; |
d8cc7fd7 | 1184 | ir->flags.tx_mask_normal = tx_mask_normal; |
6f6c625d | 1185 | ir->flags.no_tx = mceusb_model[model].no_tx; |
37dbd3a6 MCC |
1186 | ir->model = model; |
1187 | ||
66e89522 JW |
1188 | /* Saving usb interface data for use by the transmitter routine */ |
1189 | ir->usb_ep_in = ep_in; | |
1190 | ir->usb_ep_out = ep_out; | |
1191 | ||
1192 | if (dev->descriptor.iManufacturer | |
1193 | && usb_string(dev, dev->descriptor.iManufacturer, | |
1194 | buf, sizeof(buf)) > 0) | |
1195 | strlcpy(name, buf, sizeof(name)); | |
1196 | if (dev->descriptor.iProduct | |
1197 | && usb_string(dev, dev->descriptor.iProduct, | |
1198 | buf, sizeof(buf)) > 0) | |
1199 | snprintf(name + strlen(name), sizeof(name) - strlen(name), | |
1200 | " %s", buf); | |
1201 | ||
d8b4b582 DH |
1202 | ir->rc = mceusb_init_rc_dev(ir); |
1203 | if (!ir->rc) | |
1204 | goto rc_dev_fail; | |
66e89522 | 1205 | |
b48592e4 JW |
1206 | /* flush buffers on the device */ |
1207 | mce_sync_in(ir, NULL, maxp); | |
1208 | mce_sync_in(ir, NULL, maxp); | |
1209 | ||
1210 | /* wire up inbound data handler */ | |
66e89522 JW |
1211 | usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, |
1212 | maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval); | |
1213 | ir->urb_in->transfer_dma = ir->dma_in; | |
1214 | ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1215 | ||
66e89522 | 1216 | /* initialize device */ |
22b0766b | 1217 | if (ir->flags.microsoft_gen1) |
66e89522 | 1218 | mceusb_gen1_init(ir); |
22b0766b | 1219 | else if (!is_gen3) |
66e89522 JW |
1220 | mceusb_gen2_init(ir); |
1221 | ||
22b0766b | 1222 | mceusb_get_parameters(ir); |
66e89522 | 1223 | |
6f6c625d | 1224 | if (!ir->flags.no_tx) |
d8b4b582 | 1225 | mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); |
66e89522 JW |
1226 | |
1227 | usb_set_intfdata(intf, ir); | |
1228 | ||
1229 | dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name, | |
1230 | dev->bus->busnum, dev->devnum); | |
1231 | ||
1232 | return 0; | |
1233 | ||
1234 | /* Error-handling path */ | |
d8b4b582 | 1235 | rc_dev_fail: |
66e89522 JW |
1236 | usb_free_urb(ir->urb_in); |
1237 | urb_in_alloc_fail: | |
1238 | usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); | |
1239 | buf_in_alloc_fail: | |
1240 | kfree(ir); | |
1241 | mem_alloc_fail: | |
1242 | dev_err(&intf->dev, "%s: device setup failed!\n", __func__); | |
1243 | ||
1244 | return -ENOMEM; | |
1245 | } | |
1246 | ||
1247 | ||
1248 | static void __devexit mceusb_dev_disconnect(struct usb_interface *intf) | |
1249 | { | |
1250 | struct usb_device *dev = interface_to_usbdev(intf); | |
1251 | struct mceusb_dev *ir = usb_get_intfdata(intf); | |
1252 | ||
1253 | usb_set_intfdata(intf, NULL); | |
1254 | ||
1255 | if (!ir) | |
1256 | return; | |
1257 | ||
1258 | ir->usbdev = NULL; | |
d8b4b582 | 1259 | rc_unregister_device(ir->rc); |
66e89522 JW |
1260 | usb_kill_urb(ir->urb_in); |
1261 | usb_free_urb(ir->urb_in); | |
1262 | usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); | |
1263 | ||
1264 | kfree(ir); | |
1265 | } | |
1266 | ||
1267 | static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) | |
1268 | { | |
1269 | struct mceusb_dev *ir = usb_get_intfdata(intf); | |
1270 | dev_info(ir->dev, "suspend\n"); | |
1271 | usb_kill_urb(ir->urb_in); | |
1272 | return 0; | |
1273 | } | |
1274 | ||
1275 | static int mceusb_dev_resume(struct usb_interface *intf) | |
1276 | { | |
1277 | struct mceusb_dev *ir = usb_get_intfdata(intf); | |
1278 | dev_info(ir->dev, "resume\n"); | |
1279 | if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) | |
1280 | return -EIO; | |
1281 | return 0; | |
1282 | } | |
1283 | ||
1284 | static struct usb_driver mceusb_dev_driver = { | |
1285 | .name = DRIVER_NAME, | |
1286 | .probe = mceusb_dev_probe, | |
1287 | .disconnect = mceusb_dev_disconnect, | |
1288 | .suspend = mceusb_dev_suspend, | |
1289 | .resume = mceusb_dev_resume, | |
1290 | .reset_resume = mceusb_dev_resume, | |
1291 | .id_table = mceusb_dev_table | |
1292 | }; | |
1293 | ||
1294 | static int __init mceusb_dev_init(void) | |
1295 | { | |
1296 | int ret; | |
1297 | ||
1298 | ret = usb_register(&mceusb_dev_driver); | |
1299 | if (ret < 0) | |
1300 | printk(KERN_ERR DRIVER_NAME | |
1301 | ": usb register failed, result = %d\n", ret); | |
1302 | ||
1303 | return ret; | |
1304 | } | |
1305 | ||
1306 | static void __exit mceusb_dev_exit(void) | |
1307 | { | |
1308 | usb_deregister(&mceusb_dev_driver); | |
1309 | } | |
1310 | ||
1311 | module_init(mceusb_dev_init); | |
1312 | module_exit(mceusb_dev_exit); | |
1313 | ||
1314 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1315 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1316 | MODULE_LICENSE("GPL"); | |
1317 | MODULE_DEVICE_TABLE(usb, mceusb_dev_table); | |
1318 | ||
1319 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
1320 | MODULE_PARM_DESC(debug, "Debug enabled or not"); |