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