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Committer: Michael Beasley <mike@snafu.setup>
[mikesnafu-overlay.git] / drivers / media / video / saa7134 / saa7134-input.c
blobb4188819782f2c6a0ae180565ede8b87765f8292
1 /*
2 *
3 * handle saa7134 IR remotes via linux kernel input layer.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
20
21 #include <linux/module.h>
22 #include <linux/init.h>
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/input.h>
26
27 #include "saa7134-reg.h"
28 #include "saa7134.h"
29
30 static unsigned int disable_ir = 0;
31 module_param(disable_ir, int, 0444);
32 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
33
34 static unsigned int ir_debug = 0;
35 module_param(ir_debug, int, 0644);
36 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
37
38 static int pinnacle_remote = 0;
39 module_param(pinnacle_remote, int, 0644); /* Choose Pinnacle PCTV remote */
40 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
41
42 static int ir_rc5_remote_gap = 885;
43 module_param(ir_rc5_remote_gap, int, 0644);
44 static int ir_rc5_key_timeout = 115;
45 module_param(ir_rc5_key_timeout, int, 0644);
46
47 static int repeat_delay = 500;
48 module_param(repeat_delay, int, 0644);
49 MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
50 static int repeat_period = 33;
51 module_param(repeat_period, int, 0644);
52 MODULE_PARM_DESC(repeat_period, "repeat period between "
53 "keypresses when key is down");
54
55 static unsigned int disable_other_ir;
56 module_param(disable_other_ir, int, 0644);
57 MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
58 "alternative remotes from other manufacturers");
59
60 #define dprintk(fmt, arg...) if (ir_debug) \
61 printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
62 #define i2cdprintk(fmt, arg...) if (ir_debug) \
63 printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
64
65 /** rc5 functions */
66 static int saa7134_rc5_irq(struct saa7134_dev *dev);
67
68 /* -------------------- GPIO generic keycode builder -------------------- */
69
70 static int build_key(struct saa7134_dev *dev)
71 {
72 struct card_ir *ir = dev->remote;
73 u32 gpio, data;
74
75 /* here comes the additional handshake steps for some cards */
76 switch (dev->board) {
77 case SAA7134_BOARD_GOTVIEW_7135:
78 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
79 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
80 break;
81 }
82 /* rising SAA7134_GPIO_GPRESCAN reads the status */
83 saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
84 saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
85
86 gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
87 if (ir->polling) {
88 if (ir->last_gpio == gpio)
89 return 0;
90 ir->last_gpio = gpio;
91 }
92
93 data = ir_extract_bits(gpio, ir->mask_keycode);
94 dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
95 gpio, ir->mask_keycode, data);
96
97 if (ir->polling) {
98 if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
99 (ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
100 ir_input_keydown(ir->dev, &ir->ir, data, data);
101 } else {
102 ir_input_nokey(ir->dev, &ir->ir);
103 }
104 }
105 else { /* IRQ driven mode - handle key press and release in one go */
106 if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
107 (ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
108 ir_input_keydown(ir->dev, &ir->ir, data, data);
109 ir_input_nokey(ir->dev, &ir->ir);
110 }
111 }
112
113 return 0;
114 }
115
116 /* --------------------- Chip specific I2C key builders ----------------- */
117
118 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
119 {
120 unsigned char b;
121
122 /* poll IR chip */
123 if (1 != i2c_master_recv(&ir->c,&b,1)) {
124 i2cdprintk("read error\n");
125 return -EIO;
126 }
127
128 /* no button press */
129 if (b==0)
130 return 0;
131
132 /* repeating */
133 if (b & 0x80)
134 return 1;
135
136 *ir_key = b;
137 *ir_raw = b;
138 return 1;
139 }
140
141 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
142 {
143 unsigned char buf[5], cod4, code3, code4;
144
145 /* poll IR chip */
146 if (5 != i2c_master_recv(&ir->c,buf,5))
147 return -EIO;
148
149 cod4 = buf[4];
150 code4 = (cod4 >> 2);
151 code3 = buf[3];
152 if (code3 == 0)
153 /* no key pressed */
154 return 0;
155
156 /* return key */
157 *ir_key = code4;
158 *ir_raw = code4;
159 return 1;
160 }
161
162
163 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
164 {
165 unsigned char data[12];
166 u32 gpio;
167
168 struct saa7134_dev *dev = ir->c.adapter->algo_data;
169
170 /* rising SAA7134_GPIO_GPRESCAN reads the status */
171 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
172 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
173
174 gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
175
176 if (0x400000 & ~gpio)
177 return 0; /* No button press */
178
179 ir->c.addr = 0x5a >> 1;
180
181 if (12 != i2c_master_recv(&ir->c, data, 12)) {
182 i2cdprintk("read error\n");
183 return -EIO;
184 }
185 /* IR of this card normally decode signals NEC-standard from
186 * - Sven IHOO MT 5.1R remote. xxyye718
187 * - Sven DVD HD-10xx remote. xxyyf708
188 * - BBK ...
189 * - mayby others
190 * So, skip not our, if disable full codes mode.
191 */
192 if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
193 return 0;
194
195 *ir_key = data[9];
196 *ir_raw = data[9];
197
198 return 1;
199 }
200
201 void saa7134_input_irq(struct saa7134_dev *dev)
202 {
203 struct card_ir *ir = dev->remote;
204
205 if (!ir->polling && !ir->rc5_gpio) {
206 build_key(dev);
207 } else if (ir->rc5_gpio) {
208 saa7134_rc5_irq(dev);
209 }
210 }
211
212 static void saa7134_input_timer(unsigned long data)
213 {
214 struct saa7134_dev *dev = (struct saa7134_dev *)data;
215 struct card_ir *ir = dev->remote;
216
217 build_key(dev);
218 mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
219 }
220
221 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
222 {
223 if (ir->polling) {
224 setup_timer(&ir->timer, saa7134_input_timer,
225 (unsigned long)dev);
226 ir->timer.expires = jiffies + HZ;
227 add_timer(&ir->timer);
228 } else if (ir->rc5_gpio) {
229 /* set timer_end for code completion */
230 init_timer(&ir->timer_end);
231 ir->timer_end.function = ir_rc5_timer_end;
232 ir->timer_end.data = (unsigned long)ir;
233 init_timer(&ir->timer_keyup);
234 ir->timer_keyup.function = ir_rc5_timer_keyup;
235 ir->timer_keyup.data = (unsigned long)ir;
236 ir->shift_by = 2;
237 ir->start = 0x2;
238 ir->addr = 0x17;
239 ir->rc5_key_timeout = ir_rc5_key_timeout;
240 ir->rc5_remote_gap = ir_rc5_remote_gap;
241 }
242 }
243
244 void saa7134_ir_stop(struct saa7134_dev *dev)
245 {
246 if (dev->remote->polling)
247 del_timer_sync(&dev->remote->timer);
248 }
249
250 int saa7134_input_init1(struct saa7134_dev *dev)
251 {
252 struct card_ir *ir;
253 struct input_dev *input_dev;
254 IR_KEYTAB_TYPE *ir_codes = NULL;
255 u32 mask_keycode = 0;
256 u32 mask_keydown = 0;
257 u32 mask_keyup = 0;
258 int polling = 0;
259 int rc5_gpio = 0;
260 int ir_type = IR_TYPE_OTHER;
261 int err;
262
263 if (dev->has_remote != SAA7134_REMOTE_GPIO)
264 return -ENODEV;
265 if (disable_ir)
266 return -ENODEV;
267
268 /* detect & configure */
269 switch (dev->board) {
270 case SAA7134_BOARD_FLYVIDEO2000:
271 case SAA7134_BOARD_FLYVIDEO3000:
272 case SAA7134_BOARD_FLYTVPLATINUM_FM:
273 case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
274 ir_codes = ir_codes_flyvideo;
275 mask_keycode = 0xEC00000;
276 mask_keydown = 0x0040000;
277 break;
278 case SAA7134_BOARD_CINERGY400:
279 case SAA7134_BOARD_CINERGY600:
280 case SAA7134_BOARD_CINERGY600_MK3:
281 ir_codes = ir_codes_cinergy;
282 mask_keycode = 0x00003f;
283 mask_keyup = 0x040000;
284 break;
285 case SAA7134_BOARD_ECS_TVP3XP:
286 case SAA7134_BOARD_ECS_TVP3XP_4CB5:
287 ir_codes = ir_codes_eztv;
288 mask_keycode = 0x00017c;
289 mask_keyup = 0x000002;
290 polling = 50; // ms
291 break;
292 case SAA7134_BOARD_KWORLD_XPERT:
293 case SAA7134_BOARD_AVACSSMARTTV:
294 ir_codes = ir_codes_pixelview;
295 mask_keycode = 0x00001F;
296 mask_keyup = 0x000020;
297 polling = 50; // ms
298 break;
299 case SAA7134_BOARD_MD2819:
300 case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
301 case SAA7134_BOARD_AVERMEDIA_305:
302 case SAA7134_BOARD_AVERMEDIA_307:
303 case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
304 case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
305 case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
306 case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
307 case SAA7134_BOARD_AVERMEDIA_M102:
308 ir_codes = ir_codes_avermedia;
309 mask_keycode = 0x0007C8;
310 mask_keydown = 0x000010;
311 polling = 50; // ms
312 /* Set GPIO pin2 to high to enable the IR controller */
313 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
314 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
315 break;
316 case SAA7134_BOARD_AVERMEDIA_777:
317 case SAA7134_BOARD_AVERMEDIA_A16AR:
318 ir_codes = ir_codes_avermedia;
319 mask_keycode = 0x02F200;
320 mask_keydown = 0x000400;
321 polling = 50; // ms
322 /* Without this we won't receive key up events */
323 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
324 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
325 break;
326 case SAA7134_BOARD_KWORLD_TERMINATOR:
327 ir_codes = ir_codes_pixelview;
328 mask_keycode = 0x00001f;
329 mask_keyup = 0x000060;
330 polling = 50; // ms
331 break;
332 case SAA7134_BOARD_MANLI_MTV001:
333 case SAA7134_BOARD_MANLI_MTV002:
334 case SAA7134_BOARD_BEHOLD_409FM:
335 case SAA7134_BOARD_BEHOLD_401:
336 case SAA7134_BOARD_BEHOLD_403:
337 case SAA7134_BOARD_BEHOLD_403FM:
338 case SAA7134_BOARD_BEHOLD_405:
339 case SAA7134_BOARD_BEHOLD_405FM:
340 case SAA7134_BOARD_BEHOLD_407:
341 case SAA7134_BOARD_BEHOLD_407FM:
342 case SAA7134_BOARD_BEHOLD_409:
343 case SAA7134_BOARD_BEHOLD_505FM:
344 case SAA7134_BOARD_BEHOLD_507_9FM:
345 ir_codes = ir_codes_manli;
346 mask_keycode = 0x001f00;
347 mask_keyup = 0x004000;
348 polling = 50; // ms
349 break;
350 case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
351 ir_codes = ir_codes_pctv_sedna;
352 mask_keycode = 0x001f00;
353 mask_keyup = 0x004000;
354 polling = 50; // ms
355 break;
356 case SAA7134_BOARD_GOTVIEW_7135:
357 ir_codes = ir_codes_gotview7135;
358 mask_keycode = 0x0003CC;
359 mask_keydown = 0x000010;
360 polling = 5; /* ms */
361 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
362 break;
363 case SAA7134_BOARD_VIDEOMATE_TV_PVR:
364 case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
365 case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
366 ir_codes = ir_codes_videomate_tv_pvr;
367 mask_keycode = 0x00003F;
368 mask_keyup = 0x400000;
369 polling = 50; // ms
370 break;
371 case SAA7134_BOARD_PROTEUS_2309:
372 ir_codes = ir_codes_proteus_2309;
373 mask_keycode = 0x00007F;
374 mask_keyup = 0x000080;
375 polling = 50; // ms
376 break;
377 case SAA7134_BOARD_VIDEOMATE_DVBT_300:
378 case SAA7134_BOARD_VIDEOMATE_DVBT_200:
379 ir_codes = ir_codes_videomate_tv_pvr;
380 mask_keycode = 0x003F00;
381 mask_keyup = 0x040000;
382 break;
383 case SAA7134_BOARD_FLYDVBS_LR300:
384 case SAA7134_BOARD_FLYDVBT_LR301:
385 case SAA7134_BOARD_FLYDVBTDUO:
386 ir_codes = ir_codes_flydvb;
387 mask_keycode = 0x0001F00;
388 mask_keydown = 0x0040000;
389 break;
390 case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
391 case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
392 ir_codes = ir_codes_asus_pc39;
393 mask_keydown = 0x0040000;
394 rc5_gpio = 1;
395 break;
396 case SAA7134_BOARD_ENCORE_ENLTV:
397 case SAA7134_BOARD_ENCORE_ENLTV_FM:
398 ir_codes = ir_codes_encore_enltv;
399 mask_keycode = 0x00007f;
400 mask_keyup = 0x040000;
401 polling = 50; // ms
402 break;
403 case SAA7134_BOARD_10MOONSTVMASTER3:
404 ir_codes = ir_codes_encore_enltv;
405 mask_keycode = 0x5f80000;
406 mask_keyup = 0x8000000;
407 polling = 50; //ms
408 break;
409 case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
410 ir_codes = ir_codes_genius_tvgo_a11mce;
411 mask_keycode = 0xff;
412 mask_keydown = 0xf00000;
413 polling = 50; /* ms */
414 break;
415 }
416 if (NULL == ir_codes) {
417 printk("%s: Oops: IR config error [card=%d]\n",
418 dev->name, dev->board);
419 return -ENODEV;
420 }
421
422 ir = kzalloc(sizeof(*ir), GFP_KERNEL);
423 input_dev = input_allocate_device();
424 if (!ir || !input_dev) {
425 err = -ENOMEM;
426 goto err_out_free;
427 }
428
429 ir->dev = input_dev;
430
431 /* init hardware-specific stuff */
432 ir->mask_keycode = mask_keycode;
433 ir->mask_keydown = mask_keydown;
434 ir->mask_keyup = mask_keyup;
435 ir->polling = polling;
436 ir->rc5_gpio = rc5_gpio;
437
438 /* init input device */
439 snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
440 saa7134_boards[dev->board].name);
441 snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
442 pci_name(dev->pci));
443
444 ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
445 input_dev->name = ir->name;
446 input_dev->phys = ir->phys;
447 input_dev->id.bustype = BUS_PCI;
448 input_dev->id.version = 1;
449 if (dev->pci->subsystem_vendor) {
450 input_dev->id.vendor = dev->pci->subsystem_vendor;
451 input_dev->id.product = dev->pci->subsystem_device;
452 } else {
453 input_dev->id.vendor = dev->pci->vendor;
454 input_dev->id.product = dev->pci->device;
455 }
456 input_dev->dev.parent = &dev->pci->dev;
457
458 dev->remote = ir;
459 saa7134_ir_start(dev, ir);
460
461 err = input_register_device(ir->dev);
462 if (err)
463 goto err_out_stop;
464
465 /* the remote isn't as bouncy as a keyboard */
466 ir->dev->rep[REP_DELAY] = repeat_delay;
467 ir->dev->rep[REP_PERIOD] = repeat_period;
468
469 return 0;
470
471 err_out_stop:
472 saa7134_ir_stop(dev);
473 dev->remote = NULL;
474 err_out_free:
475 input_free_device(input_dev);
476 kfree(ir);
477 return err;
478 }
479
480 void saa7134_input_fini(struct saa7134_dev *dev)
481 {
482 if (NULL == dev->remote)
483 return;
484
485 saa7134_ir_stop(dev);
486 input_unregister_device(dev->remote->dev);
487 kfree(dev->remote);
488 dev->remote = NULL;
489 }
490
491 void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir)
492 {
493 if (disable_ir) {
494 dprintk("Found supported i2c remote, but IR has been disabled\n");
495 ir->get_key=NULL;
496 return;
497 }
498
499 switch (dev->board) {
500 case SAA7134_BOARD_PINNACLE_PCTV_110i:
501 case SAA7134_BOARD_PINNACLE_PCTV_310i:
502 snprintf(ir->c.name, sizeof(ir->c.name), "Pinnacle PCTV");
503 if (pinnacle_remote == 0) {
504 ir->get_key = get_key_pinnacle_color;
505 ir->ir_codes = ir_codes_pinnacle_color;
506 } else {
507 ir->get_key = get_key_pinnacle_grey;
508 ir->ir_codes = ir_codes_pinnacle_grey;
509 }
510 break;
511 case SAA7134_BOARD_UPMOST_PURPLE_TV:
512 snprintf(ir->c.name, sizeof(ir->c.name), "Purple TV");
513 ir->get_key = get_key_purpletv;
514 ir->ir_codes = ir_codes_purpletv;
515 break;
516 case SAA7134_BOARD_HAUPPAUGE_HVR1110:
517 snprintf(ir->c.name, sizeof(ir->c.name), "HVR 1110");
518 ir->get_key = get_key_hvr1110;
519 ir->ir_codes = ir_codes_hauppauge_new;
520 break;
521 case SAA7134_BOARD_BEHOLD_607_9FM:
522 case SAA7134_BOARD_BEHOLD_M6:
523 snprintf(ir->c.name, sizeof(ir->c.name), "BeholdTV");
524 ir->get_key = get_key_beholdm6xx;
525 ir->ir_codes = ir_codes_behold;
526 break;
527 default:
528 dprintk("Shouldn't get here: Unknown board %x for I2C IR?\n",dev->board);
529 break;
530 }
531
532 }
533
534 static int saa7134_rc5_irq(struct saa7134_dev *dev)
535 {
536 struct card_ir *ir = dev->remote;
537 struct timeval tv;
538 u32 gap;
539 unsigned long current_jiffies, timeout;
540
541 /* get time of bit */
542 current_jiffies = jiffies;
543 do_gettimeofday(&tv);
544
545 /* avoid overflow with gap >1s */
546 if (tv.tv_sec - ir->base_time.tv_sec > 1) {
547 gap = 200000;
548 } else {
549 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
550 tv.tv_usec - ir->base_time.tv_usec;
551 }
552
553 /* active code => add bit */
554 if (ir->active) {
555 /* only if in the code (otherwise spurious IRQ or timer
556 late) */
557 if (ir->last_bit < 28) {
558 ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
559 ir_rc5_remote_gap;
560 ir->code |= 1 << ir->last_bit;
561 }
562 /* starting new code */
563 } else {
564 ir->active = 1;
565 ir->code = 0;
566 ir->base_time = tv;
567 ir->last_bit = 0;
568
569 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
570 mod_timer(&ir->timer_end, timeout);
571 }
572
573 return 1;
574 }
575
576 /* ----------------------------------------------------------------------
577 * Local variables:
578 * c-basic-offset: 8
579 * End:
580 */
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