Commit | Line | Data |
---|---|---|
d5e52653 | 1 | /* |
f7abcd38 MCC |
2 | handle em28xx IR remotes via linux kernel input layer. |
3 | ||
4 | Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> | |
5 | Markus Rechberger <mrechberger@gmail.com> | |
2e7c6dc3 | 6 | Mauro Carvalho Chehab <mchehab@infradead.org> |
f7abcd38 MCC |
7 | Sascha Sommer <saschasommer@freenet.de> |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
d5e52653 MCC |
22 | */ |
23 | ||
24 | #include <linux/module.h> | |
d5e52653 MCC |
25 | #include <linux/init.h> |
26 | #include <linux/delay.h> | |
d5e52653 | 27 | #include <linux/interrupt.h> |
d5e52653 | 28 | #include <linux/usb.h> |
5a0e3ad6 | 29 | #include <linux/slab.h> |
d5e52653 | 30 | |
f7abcd38 | 31 | #include "em28xx.h" |
d5e52653 | 32 | |
a9fc52bc DH |
33 | #define EM28XX_SNAPSHOT_KEY KEY_CAMERA |
34 | #define EM28XX_SBUTTON_QUERY_INTERVAL 500 | |
35 | #define EM28XX_R0C_USBSUSP_SNAPSHOT 0x20 | |
36 | ||
c8793b03 | 37 | static unsigned int ir_debug; |
d5e52653 | 38 | module_param(ir_debug, int, 0644); |
6ea54d93 | 39 | MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]"); |
d5e52653 | 40 | |
727e625c MCC |
41 | #define MODULE_NAME "em28xx" |
42 | ||
a924a499 | 43 | #define i2cdprintk(fmt, arg...) \ |
6ea54d93 | 44 | if (ir_debug) { \ |
1df8e986 | 45 | printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \ |
6ea54d93 | 46 | } |
d5e52653 | 47 | |
a924a499 MCC |
48 | #define dprintk(fmt, arg...) \ |
49 | if (ir_debug) { \ | |
50 | printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \ | |
51 | } | |
52 | ||
53 | /********************************************************** | |
54 | Polling structure used by em28xx IR's | |
55 | **********************************************************/ | |
56 | ||
4b92253a DH |
57 | struct em28xx_ir_poll_result { |
58 | unsigned int toggle_bit:1; | |
59 | unsigned int read_count:7; | |
105e3687 MCC |
60 | |
61 | u32 scancode; | |
4b92253a DH |
62 | }; |
63 | ||
a924a499 MCC |
64 | struct em28xx_IR { |
65 | struct em28xx *dev; | |
d8b4b582 | 66 | struct rc_dev *rc; |
a924a499 MCC |
67 | char name[32]; |
68 | char phys[32]; | |
69 | ||
70 | /* poll external decoder */ | |
71 | int polling; | |
f263bac9 | 72 | struct delayed_work work; |
0278155c | 73 | unsigned int full_code:1; |
4b92253a | 74 | unsigned int last_readcount; |
105e3687 | 75 | u64 rc_type; |
a924a499 | 76 | |
4b92253a | 77 | int (*get_key)(struct em28xx_IR *, struct em28xx_ir_poll_result *); |
a924a499 MCC |
78 | }; |
79 | ||
80 | /********************************************************** | |
81 | I2C IR based get keycodes - should be used with ir-kbd-i2c | |
82 | **********************************************************/ | |
d5e52653 | 83 | |
769af214 | 84 | static int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) |
e43f14af MR |
85 | { |
86 | unsigned char b; | |
87 | ||
88 | /* poll IR chip */ | |
c668f32d | 89 | if (1 != i2c_master_recv(ir->c, &b, 1)) { |
a924a499 | 90 | i2cdprintk("read error\n"); |
e43f14af MR |
91 | return -EIO; |
92 | } | |
93 | ||
94 | /* it seems that 0xFE indicates that a button is still hold | |
4f9c05aa MCC |
95 | down, while 0xff indicates that no button is hold |
96 | down. 0xfe sequences are sometimes interrupted by 0xFF */ | |
e43f14af | 97 | |
a924a499 | 98 | i2cdprintk("key %02x\n", b); |
e43f14af | 99 | |
4f9c05aa | 100 | if (b == 0xff) |
e43f14af MR |
101 | return 0; |
102 | ||
4f9c05aa | 103 | if (b == 0xfe) |
e43f14af MR |
104 | /* keep old data */ |
105 | return 1; | |
106 | ||
107 | *ir_key = b; | |
108 | *ir_raw = b; | |
109 | return 1; | |
110 | } | |
111 | ||
769af214 | 112 | static int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) |
d5e52653 MCC |
113 | { |
114 | unsigned char buf[2]; | |
b779974b MCC |
115 | u16 code; |
116 | int size; | |
d5e52653 MCC |
117 | |
118 | /* poll IR chip */ | |
b779974b MCC |
119 | size = i2c_master_recv(ir->c, buf, sizeof(buf)); |
120 | ||
121 | if (size != 2) | |
d5e52653 MCC |
122 | return -EIO; |
123 | ||
124 | /* Does eliminate repeated parity code */ | |
6ea54d93 | 125 | if (buf[1] == 0xff) |
d5e52653 MCC |
126 | return 0; |
127 | ||
6ea54d93 | 128 | ir->old = buf[1]; |
d5e52653 | 129 | |
b779974b MCC |
130 | /* |
131 | * Rearranges bits to the right order. | |
132 | * The bit order were determined experimentally by using | |
133 | * The original Hauppauge Grey IR and another RC5 that uses addr=0x08 | |
134 | * The RC5 code has 14 bits, but we've experimentally determined | |
135 | * the meaning for only 11 bits. | |
136 | * So, the code translation is not complete. Yet, it is enough to | |
137 | * work with the provided RC5 IR. | |
138 | */ | |
139 | code = | |
140 | ((buf[0] & 0x01) ? 0x0020 : 0) | /* 0010 0000 */ | |
141 | ((buf[0] & 0x02) ? 0x0010 : 0) | /* 0001 0000 */ | |
142 | ((buf[0] & 0x04) ? 0x0008 : 0) | /* 0000 1000 */ | |
143 | ((buf[0] & 0x08) ? 0x0004 : 0) | /* 0000 0100 */ | |
144 | ((buf[0] & 0x10) ? 0x0002 : 0) | /* 0000 0010 */ | |
145 | ((buf[0] & 0x20) ? 0x0001 : 0) | /* 0000 0001 */ | |
146 | ((buf[1] & 0x08) ? 0x1000 : 0) | /* 0001 0000 */ | |
147 | ((buf[1] & 0x10) ? 0x0800 : 0) | /* 0000 1000 */ | |
148 | ((buf[1] & 0x20) ? 0x0400 : 0) | /* 0000 0100 */ | |
149 | ((buf[1] & 0x40) ? 0x0200 : 0) | /* 0000 0010 */ | |
150 | ((buf[1] & 0x80) ? 0x0100 : 0); /* 0000 0001 */ | |
151 | ||
152 | i2cdprintk("ir hauppauge (em2840): code=0x%02x (rcv=0x%02x%02x)\n", | |
153 | code, buf[1], buf[0]); | |
d5e52653 MCC |
154 | |
155 | /* return key */ | |
156 | *ir_key = code; | |
157 | *ir_raw = code; | |
158 | return 1; | |
159 | } | |
160 | ||
769af214 | 161 | static int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, |
c8793b03 | 162 | u32 *ir_raw) |
366cc64b MR |
163 | { |
164 | unsigned char buf[3]; | |
165 | ||
166 | /* poll IR chip */ | |
167 | ||
c668f32d | 168 | if (3 != i2c_master_recv(ir->c, buf, 3)) { |
a924a499 | 169 | i2cdprintk("read error\n"); |
366cc64b MR |
170 | return -EIO; |
171 | } | |
172 | ||
a924a499 | 173 | i2cdprintk("key %02x\n", buf[2]&0x3f); |
6ea54d93 | 174 | if (buf[0] != 0x00) |
366cc64b | 175 | return 0; |
366cc64b MR |
176 | |
177 | *ir_key = buf[2]&0x3f; | |
178 | *ir_raw = buf[2]&0x3f; | |
179 | ||
180 | return 1; | |
181 | } | |
182 | ||
769af214 EG |
183 | static int em28xx_get_key_winfast_usbii_deluxe(struct IR_i2c *ir, u32 *ir_key, |
184 | u32 *ir_raw) | |
ca39d84d MA |
185 | { |
186 | unsigned char subaddr, keydetect, key; | |
187 | ||
188 | struct i2c_msg msg[] = { { .addr = ir->c->addr, .flags = 0, .buf = &subaddr, .len = 1}, | |
189 | ||
190 | { .addr = ir->c->addr, .flags = I2C_M_RD, .buf = &keydetect, .len = 1} }; | |
191 | ||
192 | subaddr = 0x10; | |
193 | if (2 != i2c_transfer(ir->c->adapter, msg, 2)) { | |
194 | i2cdprintk("read error\n"); | |
195 | return -EIO; | |
196 | } | |
197 | if (keydetect == 0x00) | |
198 | return 0; | |
199 | ||
200 | subaddr = 0x00; | |
201 | msg[1].buf = &key; | |
202 | if (2 != i2c_transfer(ir->c->adapter, msg, 2)) { | |
203 | i2cdprintk("read error\n"); | |
204 | return -EIO; | |
205 | } | |
206 | if (key == 0x00) | |
207 | return 0; | |
208 | ||
209 | *ir_key = key; | |
210 | *ir_raw = key; | |
211 | return 1; | |
212 | } | |
213 | ||
a924a499 MCC |
214 | /********************************************************** |
215 | Poll based get keycode functions | |
216 | **********************************************************/ | |
217 | ||
4b92253a DH |
218 | /* This is for the em2860/em2880 */ |
219 | static int default_polling_getkey(struct em28xx_IR *ir, | |
220 | struct em28xx_ir_poll_result *poll_result) | |
a924a499 MCC |
221 | { |
222 | struct em28xx *dev = ir->dev; | |
223 | int rc; | |
4b92253a | 224 | u8 msg[3] = { 0, 0, 0 }; |
a924a499 | 225 | |
0a6b8a85 MCC |
226 | /* Read key toggle, brand, and key code |
227 | on registers 0x45, 0x46 and 0x47 | |
228 | */ | |
a924a499 | 229 | rc = dev->em28xx_read_reg_req_len(dev, 0, EM28XX_R45_IR, |
0a6b8a85 | 230 | msg, sizeof(msg)); |
a924a499 MCC |
231 | if (rc < 0) |
232 | return rc; | |
233 | ||
4b92253a DH |
234 | /* Infrared toggle (Reg 0x45[7]) */ |
235 | poll_result->toggle_bit = (msg[0] >> 7); | |
236 | ||
237 | /* Infrared read count (Reg 0x45[6:0] */ | |
238 | poll_result->read_count = (msg[0] & 0x7f); | |
239 | ||
105e3687 MCC |
240 | /* Remote Control Address/Data (Regs 0x46/0x47) */ |
241 | poll_result->scancode = msg[1] << 8 | msg[2]; | |
4b92253a DH |
242 | |
243 | return 0; | |
244 | } | |
245 | ||
246 | static int em2874_polling_getkey(struct em28xx_IR *ir, | |
247 | struct em28xx_ir_poll_result *poll_result) | |
248 | { | |
249 | struct em28xx *dev = ir->dev; | |
250 | int rc; | |
251 | u8 msg[5] = { 0, 0, 0, 0, 0 }; | |
252 | ||
253 | /* Read key toggle, brand, and key code | |
254 | on registers 0x51-55 | |
255 | */ | |
256 | rc = dev->em28xx_read_reg_req_len(dev, 0, EM2874_R51_IR, | |
257 | msg, sizeof(msg)); | |
258 | if (rc < 0) | |
259 | return rc; | |
260 | ||
261 | /* Infrared toggle (Reg 0x51[7]) */ | |
262 | poll_result->toggle_bit = (msg[0] >> 7); | |
263 | ||
264 | /* Infrared read count (Reg 0x51[6:0] */ | |
265 | poll_result->read_count = (msg[0] & 0x7f); | |
266 | ||
105e3687 MCC |
267 | /* |
268 | * Remote Control Address (Reg 0x52) | |
269 | * Remote Control Data (Reg 0x53-0x55) | |
270 | */ | |
271 | switch (ir->rc_type) { | |
272 | case RC_BIT_RC5: | |
273 | poll_result->scancode = msg[1] << 8 | msg[2]; | |
274 | break; | |
275 | case RC_BIT_NEC: | |
276 | if ((msg[3] ^ msg[4]) != 0xff) /* 32 bits NEC */ | |
277 | poll_result->scancode = (msg[1] << 24) | | |
278 | (msg[2] << 16) | | |
279 | (msg[3] << 8) | | |
280 | msg[4]; | |
281 | else if ((msg[1] ^ msg[2]) != 0xff) /* 24 bits NEC */ | |
282 | poll_result->scancode = (msg[1] << 16) | | |
283 | (msg[2] << 8) | | |
284 | msg[3]; | |
285 | else /* Normal NEC */ | |
286 | poll_result->scancode = msg[1] << 8 | msg[3]; | |
287 | break; | |
0dae8839 MCC |
288 | case RC_BIT_RC6_0: |
289 | poll_result->scancode = msg[1] << 8 | msg[2]; | |
290 | break; | |
105e3687 MCC |
291 | default: |
292 | poll_result->scancode = (msg[1] << 24) | (msg[2] << 16) | | |
293 | (msg[3] << 8) | msg[4]; | |
294 | break; | |
295 | } | |
4b92253a DH |
296 | |
297 | return 0; | |
a924a499 MCC |
298 | } |
299 | ||
300 | /********************************************************** | |
301 | Polling code for em28xx | |
302 | **********************************************************/ | |
303 | ||
304 | static void em28xx_ir_handle_key(struct em28xx_IR *ir) | |
305 | { | |
4b92253a | 306 | int result; |
4b92253a DH |
307 | struct em28xx_ir_poll_result poll_result; |
308 | ||
309 | /* read the registers containing the IR status */ | |
310 | result = ir->get_key(ir, &poll_result); | |
603044d8 | 311 | if (unlikely(result < 0)) { |
4b92253a | 312 | dprintk("ir->get_key() failed %d\n", result); |
a924a499 | 313 | return; |
4b92253a | 314 | } |
a924a499 | 315 | |
603044d8 | 316 | if (unlikely(poll_result.read_count != ir->last_readcount)) { |
105e3687 | 317 | dprintk("%s: toggle: %d, count: %d, key 0x%04x\n", __func__, |
603044d8 | 318 | poll_result.toggle_bit, poll_result.read_count, |
105e3687 | 319 | poll_result.scancode); |
a469585b | 320 | if (ir->full_code) |
ca86674b | 321 | rc_keydown(ir->rc, |
105e3687 | 322 | poll_result.scancode, |
a469585b DH |
323 | poll_result.toggle_bit); |
324 | else | |
ca86674b | 325 | rc_keydown(ir->rc, |
105e3687 | 326 | poll_result.scancode & 0xff, |
a469585b | 327 | poll_result.toggle_bit); |
a469585b | 328 | |
20ae9742 MCC |
329 | if (ir->dev->chip_id == CHIP_ID_EM2874 || |
330 | ir->dev->chip_id == CHIP_ID_EM2884) | |
603044d8 MCC |
331 | /* The em2874 clears the readcount field every time the |
332 | register is read. The em2860/2880 datasheet says that it | |
333 | is supposed to clear the readcount, but it doesn't. So with | |
334 | the em2874, we are looking for a non-zero read count as | |
335 | opposed to a readcount that is incrementing */ | |
336 | ir->last_readcount = 0; | |
337 | else | |
338 | ir->last_readcount = poll_result.read_count; | |
339 | } | |
a924a499 MCC |
340 | } |
341 | ||
a924a499 MCC |
342 | static void em28xx_ir_work(struct work_struct *work) |
343 | { | |
f263bac9 | 344 | struct em28xx_IR *ir = container_of(work, struct em28xx_IR, work.work); |
a924a499 MCC |
345 | |
346 | em28xx_ir_handle_key(ir); | |
f263bac9 | 347 | schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling)); |
a924a499 MCC |
348 | } |
349 | ||
d8b4b582 | 350 | static int em28xx_ir_start(struct rc_dev *rc) |
a924a499 | 351 | { |
d8b4b582 | 352 | struct em28xx_IR *ir = rc->priv; |
c373cabf | 353 | |
f263bac9 JD |
354 | INIT_DELAYED_WORK(&ir->work, em28xx_ir_work); |
355 | schedule_delayed_work(&ir->work, 0); | |
c373cabf MCC |
356 | |
357 | return 0; | |
a924a499 MCC |
358 | } |
359 | ||
d8b4b582 | 360 | static void em28xx_ir_stop(struct rc_dev *rc) |
a924a499 | 361 | { |
d8b4b582 | 362 | struct em28xx_IR *ir = rc->priv; |
c373cabf | 363 | |
f263bac9 | 364 | cancel_delayed_work_sync(&ir->work); |
a924a499 MCC |
365 | } |
366 | ||
0dae8839 | 367 | static int em2860_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type) |
a924a499 | 368 | { |
d8b4b582 | 369 | struct em28xx_IR *ir = rc_dev->priv; |
950b0f5a | 370 | struct em28xx *dev = ir->dev; |
1bad429e | 371 | |
0dae8839 MCC |
372 | /* Adjust xclk based on IR table for RC5/NEC tables */ |
373 | if (*rc_type & RC_BIT_RC5) { | |
374 | dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE; | |
375 | ir->full_code = 1; | |
376 | *rc_type = RC_BIT_RC5; | |
377 | } else if (*rc_type & RC_BIT_NEC) { | |
378 | dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE; | |
379 | ir->full_code = 1; | |
380 | *rc_type = RC_BIT_NEC; | |
381 | } else if (*rc_type & RC_BIT_UNKNOWN) { | |
382 | *rc_type = RC_BIT_UNKNOWN; | |
383 | } else { | |
384 | *rc_type = ir->rc_type; | |
385 | return -EINVAL; | |
386 | } | |
387 | ir->get_key = default_polling_getkey; | |
388 | em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk, | |
389 | EM28XX_XCLK_IR_RC5_MODE); | |
390 | ||
391 | ir->rc_type = *rc_type; | |
950b0f5a | 392 | |
0dae8839 MCC |
393 | return 0; |
394 | } | |
395 | ||
396 | static int em2874_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type) | |
397 | { | |
398 | struct em28xx_IR *ir = rc_dev->priv; | |
399 | struct em28xx *dev = ir->dev; | |
400 | u8 ir_config = EM2874_IR_RC5; | |
401 | ||
402 | /* Adjust xclk and set type based on IR table for RC5/NEC/RC6 tables */ | |
c003ab1b | 403 | if (*rc_type & RC_BIT_RC5) { |
1bad429e MCC |
404 | dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE; |
405 | ir->full_code = 1; | |
c003ab1b DH |
406 | *rc_type = RC_BIT_RC5; |
407 | } else if (*rc_type & RC_BIT_NEC) { | |
1bad429e | 408 | dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE; |
105e3687 | 409 | ir_config = EM2874_IR_NEC | EM2874_IR_NEC_NO_PARITY; |
1bad429e | 410 | ir->full_code = 1; |
c003ab1b | 411 | *rc_type = RC_BIT_NEC; |
0dae8839 MCC |
412 | } else if (*rc_type & RC_BIT_RC6_0) { |
413 | dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE; | |
414 | ir_config = EM2874_IR_RC6_MODE_0; | |
415 | ir->full_code = 1; | |
416 | *rc_type = RC_BIT_RC6_0; | |
417 | } else if (*rc_type & RC_BIT_UNKNOWN) { | |
418 | *rc_type = RC_BIT_UNKNOWN; | |
419 | } else { | |
420 | *rc_type = ir->rc_type; | |
421 | return -EINVAL; | |
422 | } | |
950b0f5a | 423 | |
0dae8839 MCC |
424 | ir->get_key = em2874_polling_getkey; |
425 | em28xx_write_regs(dev, EM2874_R50_IR_CONFIG, &ir_config, 1); | |
105e3687 | 426 | |
1bad429e MCC |
427 | em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk, |
428 | EM28XX_XCLK_IR_RC5_MODE); | |
a924a499 | 429 | |
0dae8839 MCC |
430 | ir->rc_type = *rc_type; |
431 | ||
432 | return 0; | |
433 | } | |
434 | static int em28xx_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type) | |
435 | { | |
436 | struct em28xx_IR *ir = rc_dev->priv; | |
437 | struct em28xx *dev = ir->dev; | |
438 | ||
4b92253a DH |
439 | /* Setup the proper handler based on the chip */ |
440 | switch (dev->chip_id) { | |
441 | case CHIP_ID_EM2860: | |
442 | case CHIP_ID_EM2883: | |
0dae8839 | 443 | return em2860_ir_change_protocol(rc_dev, rc_type); |
20ae9742 | 444 | case CHIP_ID_EM2884: |
4b92253a | 445 | case CHIP_ID_EM2874: |
a24ec448 | 446 | case CHIP_ID_EM28174: |
0dae8839 | 447 | return em2874_ir_change_protocol(rc_dev, rc_type); |
4b92253a | 448 | default: |
20ae9742 MCC |
449 | printk("Unrecognized em28xx chip id 0x%02x: IR not supported\n", |
450 | dev->chip_id); | |
0dae8839 | 451 | return -EINVAL; |
950b0f5a | 452 | } |
950b0f5a MCC |
453 | } |
454 | ||
769af214 | 455 | static void em28xx_register_i2c_ir(struct em28xx *dev) |
9d9f479b EG |
456 | { |
457 | /* Leadtek winfast tv USBII deluxe can find a non working IR-device */ | |
458 | /* at address 0x18, so if that address is needed for another board in */ | |
459 | /* the future, please put it after 0x1f. */ | |
460 | struct i2c_board_info info; | |
461 | const unsigned short addr_list[] = { | |
462 | 0x1f, 0x30, 0x47, I2C_CLIENT_END | |
463 | }; | |
464 | ||
465 | memset(&info, 0, sizeof(struct i2c_board_info)); | |
466 | memset(&dev->init_data, 0, sizeof(dev->init_data)); | |
467 | strlcpy(info.type, "ir_video", I2C_NAME_SIZE); | |
468 | ||
469 | /* detect & configure */ | |
470 | switch (dev->model) { | |
471 | case EM2800_BOARD_TERRATEC_CINERGY_200: | |
472 | case EM2820_BOARD_TERRATEC_CINERGY_250: | |
473 | dev->init_data.ir_codes = RC_MAP_EM_TERRATEC; | |
474 | dev->init_data.get_key = em28xx_get_key_terratec; | |
475 | dev->init_data.name = "i2c IR (EM28XX Terratec)"; | |
476 | break; | |
477 | case EM2820_BOARD_PINNACLE_USB_2: | |
478 | dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY; | |
479 | dev->init_data.get_key = em28xx_get_key_pinnacle_usb_grey; | |
480 | dev->init_data.name = "i2c IR (EM28XX Pinnacle PCTV)"; | |
481 | break; | |
482 | case EM2820_BOARD_HAUPPAUGE_WINTV_USB_2: | |
483 | dev->init_data.ir_codes = RC_MAP_HAUPPAUGE; | |
484 | dev->init_data.get_key = em28xx_get_key_em_haup; | |
485 | dev->init_data.name = "i2c IR (EM2840 Hauppauge)"; | |
486 | break; | |
487 | case EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE: | |
488 | dev->init_data.ir_codes = RC_MAP_WINFAST_USBII_DELUXE; | |
489 | dev->init_data.get_key = em28xx_get_key_winfast_usbii_deluxe; | |
490 | dev->init_data.name = "i2c IR (EM2820 Winfast TV USBII Deluxe)"; | |
491 | break; | |
492 | } | |
493 | ||
494 | if (dev->init_data.name) | |
495 | info.platform_data = &dev->init_data; | |
496 | i2c_new_probed_device(&dev->i2c_adap, &info, addr_list, NULL); | |
497 | } | |
498 | ||
769af214 EG |
499 | /********************************************************** |
500 | Handle Webcam snapshot button | |
501 | **********************************************************/ | |
502 | ||
503 | static void em28xx_query_sbutton(struct work_struct *work) | |
504 | { | |
505 | /* Poll the register and see if the button is depressed */ | |
506 | struct em28xx *dev = | |
507 | container_of(work, struct em28xx, sbutton_query_work.work); | |
508 | int ret; | |
509 | ||
510 | ret = em28xx_read_reg(dev, EM28XX_R0C_USBSUSP); | |
511 | ||
512 | if (ret & EM28XX_R0C_USBSUSP_SNAPSHOT) { | |
513 | u8 cleared; | |
514 | /* Button is depressed, clear the register */ | |
515 | cleared = ((u8) ret) & ~EM28XX_R0C_USBSUSP_SNAPSHOT; | |
516 | em28xx_write_regs(dev, EM28XX_R0C_USBSUSP, &cleared, 1); | |
517 | ||
518 | /* Not emulate the keypress */ | |
519 | input_report_key(dev->sbutton_input_dev, EM28XX_SNAPSHOT_KEY, | |
520 | 1); | |
521 | /* Now unpress the key */ | |
522 | input_report_key(dev->sbutton_input_dev, EM28XX_SNAPSHOT_KEY, | |
523 | 0); | |
524 | } | |
525 | ||
526 | /* Schedule next poll */ | |
527 | schedule_delayed_work(&dev->sbutton_query_work, | |
528 | msecs_to_jiffies(EM28XX_SBUTTON_QUERY_INTERVAL)); | |
529 | } | |
530 | ||
531 | static void em28xx_register_snapshot_button(struct em28xx *dev) | |
532 | { | |
533 | struct input_dev *input_dev; | |
534 | int err; | |
535 | ||
536 | em28xx_info("Registering snapshot button...\n"); | |
537 | input_dev = input_allocate_device(); | |
538 | if (!input_dev) { | |
539 | em28xx_errdev("input_allocate_device failed\n"); | |
540 | return; | |
541 | } | |
542 | ||
543 | usb_make_path(dev->udev, dev->snapshot_button_path, | |
544 | sizeof(dev->snapshot_button_path)); | |
545 | strlcat(dev->snapshot_button_path, "/sbutton", | |
546 | sizeof(dev->snapshot_button_path)); | |
547 | INIT_DELAYED_WORK(&dev->sbutton_query_work, em28xx_query_sbutton); | |
548 | ||
549 | input_dev->name = "em28xx snapshot button"; | |
550 | input_dev->phys = dev->snapshot_button_path; | |
551 | input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); | |
552 | set_bit(EM28XX_SNAPSHOT_KEY, input_dev->keybit); | |
553 | input_dev->keycodesize = 0; | |
554 | input_dev->keycodemax = 0; | |
555 | input_dev->id.bustype = BUS_USB; | |
556 | input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor); | |
557 | input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct); | |
558 | input_dev->id.version = 1; | |
559 | input_dev->dev.parent = &dev->udev->dev; | |
560 | ||
561 | err = input_register_device(input_dev); | |
562 | if (err) { | |
563 | em28xx_errdev("input_register_device failed\n"); | |
564 | input_free_device(input_dev); | |
565 | return; | |
566 | } | |
567 | ||
568 | dev->sbutton_input_dev = input_dev; | |
569 | schedule_delayed_work(&dev->sbutton_query_work, | |
570 | msecs_to_jiffies(EM28XX_SBUTTON_QUERY_INTERVAL)); | |
571 | return; | |
572 | ||
573 | } | |
574 | ||
575 | static void em28xx_deregister_snapshot_button(struct em28xx *dev) | |
576 | { | |
577 | if (dev->sbutton_input_dev != NULL) { | |
578 | em28xx_info("Deregistering snapshot button\n"); | |
579 | cancel_delayed_work_sync(&dev->sbutton_query_work); | |
580 | input_unregister_device(dev->sbutton_input_dev); | |
581 | dev->sbutton_input_dev = NULL; | |
582 | } | |
583 | return; | |
584 | } | |
585 | ||
f4d4e765 | 586 | static int em28xx_ir_init(struct em28xx *dev) |
950b0f5a MCC |
587 | { |
588 | struct em28xx_IR *ir; | |
d8b4b582 | 589 | struct rc_dev *rc; |
950b0f5a | 590 | int err = -ENOMEM; |
c003ab1b | 591 | u64 rc_type; |
950b0f5a MCC |
592 | |
593 | if (dev->board.ir_codes == NULL) { | |
594 | /* No remote control support */ | |
b83f6715 MB |
595 | em28xx_warn("Remote control support is not available for " |
596 | "this card.\n"); | |
950b0f5a | 597 | return 0; |
a924a499 MCC |
598 | } |
599 | ||
950b0f5a | 600 | ir = kzalloc(sizeof(*ir), GFP_KERNEL); |
d8b4b582 DH |
601 | rc = rc_allocate_device(); |
602 | if (!ir || !rc) | |
950b0f5a MCC |
603 | goto err_out_free; |
604 | ||
605 | /* record handles to ourself */ | |
606 | ir->dev = dev; | |
607 | dev->ir = ir; | |
d8b4b582 | 608 | ir->rc = rc; |
950b0f5a MCC |
609 | |
610 | /* | |
611 | * em2874 supports more protocols. For now, let's just announce | |
612 | * the two protocols that were already tested | |
613 | */ | |
c003ab1b | 614 | rc->allowed_protos = RC_BIT_RC5 | RC_BIT_NEC; |
d8b4b582 DH |
615 | rc->priv = ir; |
616 | rc->change_protocol = em28xx_ir_change_protocol; | |
617 | rc->open = em28xx_ir_start; | |
618 | rc->close = em28xx_ir_stop; | |
c373cabf | 619 | |
0dae8839 MCC |
620 | switch (dev->chip_id) { |
621 | case CHIP_ID_EM2860: | |
622 | case CHIP_ID_EM2883: | |
623 | rc->allowed_protos = RC_BIT_RC5 | RC_BIT_NEC; | |
624 | break; | |
625 | case CHIP_ID_EM2884: | |
626 | case CHIP_ID_EM2874: | |
627 | case CHIP_ID_EM28174: | |
628 | rc->allowed_protos = RC_BIT_RC5 | RC_BIT_NEC | RC_BIT_RC6_0; | |
629 | break; | |
630 | default: | |
631 | err = -ENODEV; | |
632 | goto err_out_free; | |
633 | } | |
634 | ||
c373cabf | 635 | /* By default, keep protocol field untouched */ |
c003ab1b DH |
636 | rc_type = RC_BIT_UNKNOWN; |
637 | err = em28xx_ir_change_protocol(rc, &rc_type); | |
c373cabf MCC |
638 | if (err) |
639 | goto err_out_free; | |
950b0f5a | 640 | |
4b92253a DH |
641 | /* This is how often we ask the chip for IR information */ |
642 | ir->polling = 100; /* ms */ | |
643 | ||
a924a499 MCC |
644 | /* init input device */ |
645 | snprintf(ir->name, sizeof(ir->name), "em28xx IR (%s)", | |
646 | dev->name); | |
647 | ||
648 | usb_make_path(dev->udev, ir->phys, sizeof(ir->phys)); | |
649 | strlcat(ir->phys, "/input0", sizeof(ir->phys)); | |
650 | ||
d8b4b582 DH |
651 | rc->input_name = ir->name; |
652 | rc->input_phys = ir->phys; | |
653 | rc->input_id.bustype = BUS_USB; | |
654 | rc->input_id.version = 1; | |
655 | rc->input_id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor); | |
656 | rc->input_id.product = le16_to_cpu(dev->udev->descriptor.idProduct); | |
657 | rc->dev.parent = &dev->udev->dev; | |
658 | rc->map_name = dev->board.ir_codes; | |
659 | rc->driver_name = MODULE_NAME; | |
a924a499 MCC |
660 | |
661 | /* all done */ | |
d8b4b582 | 662 | err = rc_register_device(rc); |
a924a499 MCC |
663 | if (err) |
664 | goto err_out_stop; | |
665 | ||
2fd6f8d1 EG |
666 | em28xx_register_i2c_ir(dev); |
667 | ||
668 | #if defined(CONFIG_MODULES) && defined(MODULE) | |
669 | if (dev->board.has_ir_i2c) | |
670 | request_module("ir-kbd-i2c"); | |
671 | #endif | |
672 | if (dev->board.has_snapshot_button) | |
673 | em28xx_register_snapshot_button(dev); | |
674 | ||
a924a499 | 675 | return 0; |
d8b4b582 | 676 | |
0dae8839 | 677 | err_out_stop: |
a924a499 | 678 | dev->ir = NULL; |
0dae8839 | 679 | err_out_free: |
d8b4b582 | 680 | rc_free_device(rc); |
a924a499 MCC |
681 | kfree(ir); |
682 | return err; | |
683 | } | |
684 | ||
f4d4e765 | 685 | static int em28xx_ir_fini(struct em28xx *dev) |
a924a499 MCC |
686 | { |
687 | struct em28xx_IR *ir = dev->ir; | |
688 | ||
2fd6f8d1 EG |
689 | em28xx_deregister_snapshot_button(dev); |
690 | ||
a924a499 MCC |
691 | /* skip detach on non attached boards */ |
692 | if (!ir) | |
693 | return 0; | |
694 | ||
6d514774 MCC |
695 | if (ir->rc) |
696 | rc_unregister_device(ir->rc); | |
a924a499 MCC |
697 | |
698 | /* done */ | |
6d514774 | 699 | kfree(ir); |
a924a499 MCC |
700 | dev->ir = NULL; |
701 | return 0; | |
702 | } | |
703 | ||
f4d4e765 EG |
704 | static struct em28xx_ops rc_ops = { |
705 | .id = EM28XX_RC, | |
706 | .name = "Em28xx Input Extension", | |
707 | .init = em28xx_ir_init, | |
708 | .fini = em28xx_ir_fini, | |
709 | }; | |
710 | ||
711 | static int __init em28xx_rc_register(void) | |
712 | { | |
713 | return em28xx_register_extension(&rc_ops); | |
714 | } | |
715 | ||
716 | static void __exit em28xx_rc_unregister(void) | |
717 | { | |
718 | em28xx_unregister_extension(&rc_ops); | |
719 | } | |
720 | ||
721 | MODULE_LICENSE("GPL"); | |
722 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); | |
723 | MODULE_DESCRIPTION("Em28xx Input driver"); | |
724 | ||
725 | module_init(em28xx_rc_register); | |
726 | module_exit(em28xx_rc_unregister); |