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Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
[net-next-2.6.git] / drivers / media / video / saa7134 / saa7134-input.c
CommitLineData
1da177e4 1/*
1da177e4
LT		 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>
1da177e4
LT		 22#include <linux/init.h>
23#include <linux/delay.h>
1da177e4
LT		 24#include <linux/interrupt.h>
25#include <linux/input.h>
5a0e3ad6 26#include <linux/slab.h>
1da177e4
LT		 27
28#include "saa7134-reg.h"
29#include "saa7134.h"
30
d302548a 31#define MODULE_NAME "saa7134"
727e625c 32
ff699e6b 33static unsigned int disable_ir;
1da177e4
LT		 34module_param(disable_ir, int, 0444);
35MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
36
ff699e6b 37static unsigned int ir_debug;
1da177e4
LT		 38module_param(ir_debug, int, 0644);
39MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
40
ff699e6b 41static int pinnacle_remote;
b93eedb6
SP		 42module_param(pinnacle_remote, int, 0644); /* Choose Pinnacle PCTV remote */
43MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
44
c408a6f6 45static int ir_rc5_remote_gap = 885;
9160723e 46module_param(ir_rc5_remote_gap, int, 0644);
c408a6f6 47static int ir_rc5_key_timeout = 115;
9160723e
HP		 48module_param(ir_rc5_key_timeout, int, 0644);
49
0938e319
P		 50static int repeat_delay = 500;
51module_param(repeat_delay, int, 0644);
52MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
53static int repeat_period = 33;
54module_param(repeat_period, int, 0644);
ac9bb7f5 55MODULE_PARM_DESC(repeat_period, "repeat period between "
0938e319
P		 56 "keypresses when key is down");
57
e8018c9e
AMT		 58static unsigned int disable_other_ir;
59module_param(disable_other_ir, int, 0644);
60MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
61 "alternative remotes from other manufacturers");
62
1da177e4
LT		 63#define dprintk(fmt, arg...) if (ir_debug) \
64 printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
ac9cd976 65#define i2cdprintk(fmt, arg...) if (ir_debug) \
1df8e986 66 printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg)
1da177e4 67
622ecb30 68/* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
9160723e 69static int saa7134_rc5_irq(struct saa7134_dev *dev);
622ecb30 70static int saa7134_nec_irq(struct saa7134_dev *dev);
a3572c34 71static int saa7134_raw_decode_irq(struct saa7134_dev *dev);
622ecb30
MCC		 72static void nec_task(unsigned long data);
73static void saa7134_nec_timer(unsigned long data);
9160723e 74
ac9cd976 75/* -------------------- GPIO generic keycode builder -------------------- */
1da177e4
LT		 76
77static int build_key(struct saa7134_dev *dev)
78{
9160723e 79 struct card_ir *ir = dev->remote;
1da177e4
LT		 80 u32 gpio, data;
81
0938e319
P		 82 /* here comes the additional handshake steps for some cards */
83 switch (dev->board) {
84 case SAA7134_BOARD_GOTVIEW_7135:
85 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
86 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
87 break;
88 }
1da177e4
LT		 89 /* rising SAA7134_GPIO_GPRESCAN reads the status */
90 saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
91 saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
92
93 gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
4ac97914
MCC		 94 if (ir->polling) {
95 if (ir->last_gpio == gpio)
96 return 0;
97 ir->last_gpio = gpio;
98 }
1da177e4 99
4ac97914 100 data = ir_extract_bits(gpio, ir->mask_keycode);
1da177e4
LT		 101 dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
102 gpio, ir->mask_keycode, data);
103
26d5f3a3
MCC		 104 switch (dev->board) {
105 case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
106 if (data == ir->mask_keycode)
107 ir_input_nokey(ir->dev, &ir->ir);
108 else
8573b74a 109 ir_input_keydown(ir->dev, &ir->ir, data);
26d5f3a3
MCC		 110 return 0;
111 }
112
0602fbb2
PM		 113 if (ir->polling) {
114 if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
115 (ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
8573b74a 116 ir_input_keydown(ir->dev, &ir->ir, data);
0602fbb2
PM		 117 } else {
118 ir_input_nokey(ir->dev, &ir->ir);
119 }
1da177e4 120 }
0602fbb2
PM		 121 else { /* IRQ driven mode - handle key press and release in one go */
122 if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
123 (ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
8573b74a 124 ir_input_keydown(ir->dev, &ir->ir, data);
0602fbb2
PM		 125 ir_input_nokey(ir->dev, &ir->ir);
126 }
127 }
128
1da177e4
LT		 129 return 0;
130}
131
ac9cd976
RC		 132/* --------------------- Chip specific I2C key builders ----------------- */
133
d995a187
LK		 134static int get_key_flydvb_trio(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
135{
136 int gpio;
137 int attempt = 0;
138 unsigned char b;
139
140 /* We need this to access GPI Used by the saa_readl macro. */
141 struct saa7134_dev *dev = ir->c->adapter->algo_data;
142
143 if (dev == NULL) {
129c34d8
DC		 144 i2cdprintk("get_key_flydvb_trio: "
145 "ir->c->adapter->algo_data is NULL!\n");
d995a187
LK		 146 return -EIO;
147 }
148
149 /* rising SAA7134_GPIGPRESCAN reads the status */
150 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
151 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
152
153 gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
154
155 if (0x40000 & ~gpio)
156 return 0; /* No button press */
157
158 /* No button press - only before first key pressed */
159 if (b == 0xFF)
160 return 0;
161
162 /* poll IR chip */
163 /* weak up the IR chip */
164 b = 0;
165
166 while (1 != i2c_master_send(ir->c, &b, 1)) {
167 if ((attempt++) < 10) {
168 /*
169 * wait a bit for next attempt -
170 * I don't know how make it better
171 */
172 msleep(10);
173 continue;
174 }
175 i2cdprintk("send wake up byte to pic16C505 (IR chip)"
176 "failed %dx\n", attempt);
177 return -EIO;
178 }
179 if (1 != i2c_master_recv(ir->c, &b, 1)) {
180 i2cdprintk("read error\n");
181 return -EIO;
182 }
183
184 *ir_key = b;
185 *ir_raw = b;
186 return 1;
187}
188
ba340b40
BR		 189static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
190 u32 *ir_raw)
191{
192 unsigned char b;
193 int gpio;
194
195 /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
c668f32d 196 struct saa7134_dev *dev = ir->c->adapter->algo_data;
ba340b40 197 if (dev == NULL) {
129c34d8
DC		 198 i2cdprintk("get_key_msi_tvanywhere_plus: "
199 "ir->c->adapter->algo_data is NULL!\n");
ba340b40
BR		 200 return -EIO;
201 }
202
203 /* rising SAA7134_GPIO_GPRESCAN reads the status */
204
205 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
206 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
207
208 gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
209
210 /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
211 I2C receive if gpio&0x40 is not low. */
212
213 if (gpio & 0x40)
214 return 0; /* No button press */
215
216 /* GPIO says there is a button press. Get it. */
217
c668f32d 218 if (1 != i2c_master_recv(ir->c, &b, 1)) {
ba340b40
BR		 219 i2cdprintk("read error\n");
220 return -EIO;
221 }
222
223 /* No button press */
224
225 if (b == 0xff)
226 return 0;
227
228 /* Button pressed */
229
230 dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
231 *ir_key = b;
232 *ir_raw = b;
233 return 1;
234}
235
ac9cd976
RC		 236static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
237{
238 unsigned char b;
239
240 /* poll IR chip */
c668f32d 241 if (1 != i2c_master_recv(ir->c, &b, 1)) {
ac9cd976
RC		 242 i2cdprintk("read error\n");
243 return -EIO;
244 }
245
246 /* no button press */
247 if (b==0)
248 return 0;
249
250 /* repeating */
251 if (b & 0x80)
252 return 1;
253
254 *ir_key = b;
255 *ir_raw = b;
256 return 1;
257}
258
177aaaf8
TG		 259static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
260{
261 unsigned char buf[5], cod4, code3, code4;
262
263 /* poll IR chip */
c668f32d 264 if (5 != i2c_master_recv(ir->c, buf, 5))
177aaaf8
TG		 265 return -EIO;
266
267 cod4 = buf[4];
268 code4 = (cod4 >> 2);
269 code3 = buf[3];
270 if (code3 == 0)
271 /* no key pressed */
272 return 0;
273
274 /* return key */
275 *ir_key = code4;
276 *ir_raw = code4;
277 return 1;
278}
279
e8018c9e
AMT		 280
281static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
282{
283 unsigned char data[12];
284 u32 gpio;
285
c668f32d 286 struct saa7134_dev *dev = ir->c->adapter->algo_data;
e8018c9e
AMT		 287
288 /* rising SAA7134_GPIO_GPRESCAN reads the status */
289 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
290 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
291
292 gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
293
616f8878 294 if (0x400000 & ~gpio)
e8018c9e
AMT		 295 return 0; /* No button press */
296
c668f32d 297 ir->c->addr = 0x5a >> 1;
e8018c9e 298
c668f32d 299 if (12 != i2c_master_recv(ir->c, data, 12)) {
e8018c9e
AMT		 300 i2cdprintk("read error\n");
301 return -EIO;
302 }
303 /* IR of this card normally decode signals NEC-standard from
304 * - Sven IHOO MT 5.1R remote. xxyye718
305 * - Sven DVD HD-10xx remote. xxyyf708
306 * - BBK ...
307 * - mayby others
308 * So, skip not our, if disable full codes mode.
309 */
310 if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
311 return 0;
312
2d21ffe0
DB		 313 /* Wrong data decode fix */
314 if (data[9] != (unsigned char)(~data[8]))
315 return 0;
316
e8018c9e
AMT		 317 *ir_key = data[9];
318 *ir_raw = data[9];
319
320 return 1;
321}
322
1c22dad8
MCC		 323/* Common (grey or coloured) pinnacle PCTV remote handling
324 *
325 */
326static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
327 int parity_offset, int marker, int code_modulo)
328{
329 unsigned char b[4];
330 unsigned int start = 0,parity = 0,code = 0;
331
332 /* poll IR chip */
c668f32d 333 if (4 != i2c_master_recv(ir->c, b, 4)) {
1c22dad8
MCC		 334 i2cdprintk("read error\n");
335 return -EIO;
336 }
337
338 for (start = 0; start < ARRAY_SIZE(b); start++) {
339 if (b[start] == marker) {
340 code=b[(start+parity_offset + 1) % 4];
341 parity=b[(start+parity_offset) % 4];
342 }
343 }
344
345 /* Empty Request */
346 if (parity == 0)
347 return 0;
348
349 /* Repeating... */
350 if (ir->old == parity)
351 return 0;
352
353 ir->old = parity;
354
355 /* drop special codes when a key is held down a long time for the grey controller
356 In this case, the second bit of the code is asserted */
357 if (marker == 0xfe && (code & 0x40))
358 return 0;
359
360 code %= code_modulo;
361
362 *ir_raw = code;
363 *ir_key = code;
364
365 i2cdprintk("Pinnacle PCTV key %02x\n", code);
366
367 return 1;
368}
369
370/* The grey pinnacle PCTV remote
371 *
372 * There are one issue with this remote:
373 * - I2c packet does not change when the same key is pressed quickly. The workaround
374 * is to hold down each key for about half a second, so that another code is generated
375 * in the i2c packet, and the function can distinguish key presses.
376 *
377 * Sylvain Pasche <sylvain.pasche@gmail.com>
378 */
379static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
380{
381
382 return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
383}
384
385
386/* The new pinnacle PCTV remote (with the colored buttons)
387 *
388 * Ricardo Cerqueira <v4l@cerqueira.org>
389 */
390static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
391{
392 /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
393 *
394 * this is the only value that results in 42 unique
395 * codes < 128
396 */
397
398 return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
399}
400
1da177e4
LT		 401void saa7134_input_irq(struct saa7134_dev *dev)
402{
716aab44
MCC		 403 struct card_ir *ir;
404
405 if (!dev || !dev->remote)
406 return;
407
408 ir = dev->remote;
409 if (!ir->running)
410 return;
1da177e4 411
622ecb30
MCC		 412 if (ir->nec_gpio) {
413 saa7134_nec_irq(dev);
a3572c34 414 } else if (!ir->polling && !ir->rc5_gpio && !ir->raw_decode) {
1da177e4 415 build_key(dev);
9160723e
HP		 416 } else if (ir->rc5_gpio) {
417 saa7134_rc5_irq(dev);
a3572c34
MCC		 418 } else if (ir->raw_decode) {
419 saa7134_raw_decode_irq(dev);
9160723e 420 }
1da177e4
LT		 421}
422
423static void saa7134_input_timer(unsigned long data)
424{
b4ba7884 425 struct saa7134_dev *dev = (struct saa7134_dev *)data;
9160723e 426 struct card_ir *ir = dev->remote;
1da177e4
LT		 427
428 build_key(dev);
b4ba7884 429 mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
1da177e4
LT		 430}
431
e051f69a 432static void ir_raw_decode_timer_end(unsigned long data)
a3572c34
MCC		 433{
434 struct saa7134_dev *dev = (struct saa7134_dev *)data;
9f154782 435 struct card_ir *ir = dev->remote;
a3572c34 436
ada39630 437 ir_raw_event_handle(dev->remote->dev);
9f154782
MCC		 438
439 ir->active = 0;
a3572c34
MCC		 440}
441
716aab44 442static int __saa7134_ir_start(void *priv)
b07b4783 443{
716aab44
MCC		 444 struct saa7134_dev *dev = priv;
445 struct card_ir *ir;
446
447 if (!dev)
448 return -EINVAL;
449
450 ir = dev->remote;
451 if (!ir)
452 return -EINVAL;
453
02108949 454 if (ir->running)
716aab44 455 return 0;
02108949
MCC		 456
457 ir->running = 1;
b07b4783 458 if (ir->polling) {
b4ba7884
DT		 459 setup_timer(&ir->timer, saa7134_input_timer,
460 (unsigned long)dev);
b07b4783
DT		 461 ir->timer.expires = jiffies + HZ;
462 add_timer(&ir->timer);
9160723e
HP		 463 } else if (ir->rc5_gpio) {
464 /* set timer_end for code completion */
465 init_timer(&ir->timer_end);
466 ir->timer_end.function = ir_rc5_timer_end;
467 ir->timer_end.data = (unsigned long)ir;
468 init_timer(&ir->timer_keyup);
469 ir->timer_keyup.function = ir_rc5_timer_keyup;
470 ir->timer_keyup.data = (unsigned long)ir;
471 ir->shift_by = 2;
472 ir->start = 0x2;
473 ir->addr = 0x17;
474 ir->rc5_key_timeout = ir_rc5_key_timeout;
475 ir->rc5_remote_gap = ir_rc5_remote_gap;
622ecb30
MCC		 476 } else if (ir->nec_gpio) {
477 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
478 (unsigned long)dev);
479 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
a3572c34
MCC		 480 } else if (ir->raw_decode) {
481 /* set timer_end for code completion */
482 init_timer(&ir->timer_end);
483 ir->timer_end.function = ir_raw_decode_timer_end;
484 ir->timer_end.data = (unsigned long)dev;
9f154782 485 ir->active = 0;
b07b4783 486 }
716aab44
MCC		 487
488 return 0;
b07b4783
DT		 489}
490
716aab44 491static void __saa7134_ir_stop(void *priv)
b07b4783 492{
716aab44
MCC		 493 struct saa7134_dev *dev = priv;
494 struct card_ir *ir;
495
496 if (!dev)
497 return;
498
499 ir = dev->remote;
500 if (!ir)
501 return;
02108949
MCC		 502
503 if (!ir->running)
504 return;
b07b4783
DT		 505 if (dev->remote->polling)
506 del_timer_sync(&dev->remote->timer);
02108949
MCC		 507 else if (ir->rc5_gpio)
508 del_timer_sync(&ir->timer_end);
509 else if (ir->nec_gpio)
510 tasklet_kill(&ir->tlet);
9f154782 511 else if (ir->raw_decode) {
a3572c34 512 del_timer_sync(&ir->timer_end);
9f154782
MCC		 513 ir->active = 0;
514 }
a3572c34 515
02108949 516 ir->running = 0;
716aab44
MCC		 517
518 return;
519}
520
521int saa7134_ir_start(struct saa7134_dev *dev)
522{
523 if (dev->remote->users)
524 return __saa7134_ir_start(dev);
525
526 return 0;
527}
528
529void saa7134_ir_stop(struct saa7134_dev *dev)
530{
531 if (dev->remote->users)
532 __saa7134_ir_stop(dev);
533}
534
535static int saa7134_ir_open(void *priv)
536{
537 struct saa7134_dev *dev = priv;
538
539 dev->remote->users++;
540 return __saa7134_ir_start(dev);
541}
542
543static void saa7134_ir_close(void *priv)
544{
545 struct saa7134_dev *dev = priv;
546
547 dev->remote->users--;
548 if (!dev->remote->users)
549 __saa7134_ir_stop(dev);
02108949
MCC		 550}
551
716aab44 552
e051f69a 553static int saa7134_ir_change_protocol(void *priv, u64 ir_type)
02108949
MCC		 554{
555 struct saa7134_dev *dev = priv;
556 struct card_ir *ir = dev->remote;
557 u32 nec_gpio, rc5_gpio;
558
559 if (ir_type == IR_TYPE_RC5) {
560 dprintk("Changing protocol to RC5\n");
561 nec_gpio = 0;
562 rc5_gpio = 1;
563 } else if (ir_type == IR_TYPE_NEC) {
564 dprintk("Changing protocol to NEC\n");
565 nec_gpio = 1;
566 rc5_gpio = 0;
567 } else {
568 dprintk("IR protocol type %ud is not supported\n",
569 (unsigned)ir_type);
570 return -EINVAL;
571 }
572
573 if (ir->running) {
574 saa7134_ir_stop(dev);
575 ir->nec_gpio = nec_gpio;
576 ir->rc5_gpio = rc5_gpio;
716aab44 577 saa7134_ir_start(dev);
02108949
MCC		 578 } else {
579 ir->nec_gpio = nec_gpio;
580 ir->rc5_gpio = rc5_gpio;
581 }
582
583 return 0;
b07b4783
DT		 584}
585
1da177e4
LT		 586int saa7134_input_init1(struct saa7134_dev *dev)
587{
9160723e 588 struct card_ir *ir;
b7df3910 589 struct input_dev *input_dev;
02858eed 590 char *ir_codes = NULL;
1da177e4
LT		 591 u32 mask_keycode = 0;
592 u32 mask_keydown = 0;
593 u32 mask_keyup = 0;
594 int polling = 0;
9160723e 595 int rc5_gpio = 0;
622ecb30 596 int nec_gpio = 0;
a3572c34 597 int raw_decode = 0;
02858eed 598 int allow_protocol_change = 0;
971e8298 599 u64 ir_type = IR_TYPE_OTHER;
b07b4783 600 int err;
1da177e4 601
cb2444df 602 if (dev->has_remote != SAA7134_REMOTE_GPIO)
1da177e4
LT		 603 return -ENODEV;
604 if (disable_ir)
605 return -ENODEV;
606
607 /* detect & configure */
608 switch (dev->board) {
609 case SAA7134_BOARD_FLYVIDEO2000:
610 case SAA7134_BOARD_FLYVIDEO3000:
4ac97914 611 case SAA7134_BOARD_FLYTVPLATINUM_FM:
6af90ab5 612 case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
23389b88 613 case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
02858eed 614 ir_codes = RC_MAP_FLYVIDEO;
1da177e4
LT		 615 mask_keycode = 0xEC00000;
616 mask_keydown = 0x0040000;
617 break;
618 case SAA7134_BOARD_CINERGY400:
619 case SAA7134_BOARD_CINERGY600:
620 case SAA7134_BOARD_CINERGY600_MK3:
02858eed 621 ir_codes = RC_MAP_CINERGY;
1da177e4
LT		 622 mask_keycode = 0x00003f;
623 mask_keyup = 0x040000;
624 break;
625 case SAA7134_BOARD_ECS_TVP3XP:
626 case SAA7134_BOARD_ECS_TVP3XP_4CB5:
02858eed 627 ir_codes = RC_MAP_EZTV;
330a115a
MCC		 628 mask_keycode = 0x00017c;
629 mask_keyup = 0x000002;
1da177e4 630 polling = 50; // ms
330a115a
MCC		 631 break;
632 case SAA7134_BOARD_KWORLD_XPERT:
1da177e4 633 case SAA7134_BOARD_AVACSSMARTTV:
02858eed 634 ir_codes = RC_MAP_PIXELVIEW;
1da177e4
LT		 635 mask_keycode = 0x00001F;
636 mask_keyup = 0x000020;
637 polling = 50; // ms
638 break;
639 case SAA7134_BOARD_MD2819:
ac19ecc6 640 case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
1da177e4
LT		 641 case SAA7134_BOARD_AVERMEDIA_305:
642 case SAA7134_BOARD_AVERMEDIA_307:
ac19ecc6 643 case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
5a5e1da5 644 case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
ac19ecc6 645 case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
3ac706d2 646 case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
df0dbbe2 647 case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
ac19ecc6 648 case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
d2761f22 649 case SAA7134_BOARD_AVERMEDIA_M102:
6a2d802c 650 case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
02858eed 651 ir_codes = RC_MAP_AVERMEDIA;
1da177e4
LT		 652 mask_keycode = 0x0007C8;
653 mask_keydown = 0x000010;
654 polling = 50; // ms
655 /* Set GPIO pin2 to high to enable the IR controller */
656 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
657 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
658 break;
36f6bb97 659 case SAA7134_BOARD_AVERMEDIA_M135A:
63fc31e8 660 ir_codes = RC_MAP_AVERMEDIA_M135A;
2f16f631
MCC		 661 mask_keydown = 0x0040000; /* Enable GPIO18 line on both edges */
662 mask_keyup = 0x0040000;
d152b8b6 663 mask_keycode = 0xffff;
a3572c34 664 raw_decode = 1;
36f6bb97 665 break;
9e1d9e7b
HRK		 666 case SAA7134_BOARD_AVERMEDIA_M733A:
667 ir_codes = RC_MAP_AVERMEDIA_M733A_RM_K6;
668 mask_keydown = 0x0040000;
669 mask_keyup = 0x0040000;
670 mask_keycode = 0xffff;
671 raw_decode = 1;
672 break;
450efcfd 673 case SAA7134_BOARD_AVERMEDIA_777:
29e0f1a1 674 case SAA7134_BOARD_AVERMEDIA_A16AR:
02858eed 675 ir_codes = RC_MAP_AVERMEDIA;
450efcfd 676 mask_keycode = 0x02F200;
677 mask_keydown = 0x000400;
678 polling = 50; // ms
679 /* Without this we won't receive key up events */
680 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
681 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
4dd7406e 682 break;
6e501a3f 683 case SAA7134_BOARD_AVERMEDIA_A16D:
02858eed 684 ir_codes = RC_MAP_AVERMEDIA_A16D;
6e501a3f
TF		 685 mask_keycode = 0x02F200;
686 mask_keydown = 0x000400;
687 polling = 50; /* ms */
688 /* Without this we won't receive key up events */
689 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
690 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
691 break;
4ac97914 692 case SAA7134_BOARD_KWORLD_TERMINATOR:
02858eed 693 ir_codes = RC_MAP_PIXELVIEW;
dc2286cf
JW		 694 mask_keycode = 0x00001f;
695 mask_keyup = 0x000060;
696 polling = 50; // ms
697 break;
ac19ecc6
MCC		 698 case SAA7134_BOARD_MANLI_MTV001:
699 case SAA7134_BOARD_MANLI_MTV002:
02858eed 700 ir_codes = RC_MAP_MANLI;
b34dddbe
DB		 701 mask_keycode = 0x001f00;
702 mask_keyup = 0x004000;
703 polling = 50; /* ms */
704 break;
a8ff417e 705 case SAA7134_BOARD_BEHOLD_409FM:
e8018c9e
AMT		 706 case SAA7134_BOARD_BEHOLD_401:
707 case SAA7134_BOARD_BEHOLD_403:
708 case SAA7134_BOARD_BEHOLD_403FM:
709 case SAA7134_BOARD_BEHOLD_405:
710 case SAA7134_BOARD_BEHOLD_405FM:
711 case SAA7134_BOARD_BEHOLD_407:
712 case SAA7134_BOARD_BEHOLD_407FM:
713 case SAA7134_BOARD_BEHOLD_409:
714 case SAA7134_BOARD_BEHOLD_505FM:
9c6f97a0
DB		 715 case SAA7134_BOARD_BEHOLD_505RDS_MK5:
716 case SAA7134_BOARD_BEHOLD_505RDS_MK3:
e8018c9e 717 case SAA7134_BOARD_BEHOLD_507_9FM:
84d728c3
DB		 718 case SAA7134_BOARD_BEHOLD_507RDS_MK3:
719 case SAA7134_BOARD_BEHOLD_507RDS_MK5:
02858eed 720 ir_codes = RC_MAP_MANLI;
b34dddbe
DB		 721 mask_keycode = 0x003f00;
722 mask_keyup = 0x004000;
723 polling = 50; /* ms */
724 break;
725 case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
02858eed 726 ir_codes = RC_MAP_BEHOLD_COLUMBUS;
b34dddbe 727 mask_keycode = 0x003f00;
ac19ecc6 728 mask_keyup = 0x004000;
ac19ecc6
MCC		 729 polling = 50; // ms
730 break;
17ce1ff9 731 case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
02858eed 732 ir_codes = RC_MAP_PCTV_SEDNA;
c3d93192
PM		 733 mask_keycode = 0x001f00;
734 mask_keyup = 0x004000;
735 polling = 50; // ms
736 break;
4ac97914 737 case SAA7134_BOARD_GOTVIEW_7135:
02858eed 738 ir_codes = RC_MAP_GOTVIEW7135;
0938e319 739 mask_keycode = 0x0003CC;
6b961440 740 mask_keydown = 0x000010;
0938e319
P		 741 polling = 5; /* ms */
742 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
6b961440 743 break;
1da177e4 744 case SAA7134_BOARD_VIDEOMATE_TV_PVR:
2a9a9a84 745 case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
330a115a 746 case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
02858eed 747 ir_codes = RC_MAP_VIDEOMATE_TV_PVR;
1da177e4
LT		 748 mask_keycode = 0x00003F;
749 mask_keyup = 0x400000;
750 polling = 50; // ms
751 break;
b04c1baf 752 case SAA7134_BOARD_PROTEUS_2309:
02858eed 753 ir_codes = RC_MAP_PROTEUS_2309;
b04c1baf
MM		 754 mask_keycode = 0x00007F;
755 mask_keyup = 0x000080;
756 polling = 50; // ms
757 break;
4ac97914
MCC		 758 case SAA7134_BOARD_VIDEOMATE_DVBT_300:
759 case SAA7134_BOARD_VIDEOMATE_DVBT_200:
02858eed 760 ir_codes = RC_MAP_VIDEOMATE_TV_PVR;
fea095fe
NS		 761 mask_keycode = 0x003F00;
762 mask_keyup = 0x040000;
763 break;
f5c965ab 764 case SAA7134_BOARD_FLYDVBS_LR300:
3d8466ec 765 case SAA7134_BOARD_FLYDVBT_LR301:
a8029170 766 case SAA7134_BOARD_FLYDVBTDUO:
02858eed 767 ir_codes = RC_MAP_FLYDVB;
3d8466ec
GG		 768 mask_keycode = 0x0001F00;
769 mask_keydown = 0x0040000;
770 break;
9160723e 771 case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
904ab884 772 case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
dfb4ba1e 773 case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
02858eed 774 ir_codes = RC_MAP_ASUS_PC39;
fe8b6713
MCC		 775 mask_keydown = 0x0040000; /* Enable GPIO18 line on both edges */
776 mask_keyup = 0x0040000;
777 mask_keycode = 0xffff;
778 raw_decode = 1;
9160723e 779 break;
c36c459a
JPS		 780 case SAA7134_BOARD_ENCORE_ENLTV:
781 case SAA7134_BOARD_ENCORE_ENLTV_FM:
02858eed 782 ir_codes = RC_MAP_ENCORE_ENLTV;
c36c459a
JPS		 783 mask_keycode = 0x00007f;
784 mask_keyup = 0x040000;
785 polling = 50; // ms
786 break;
bf1ece6a 787 case SAA7134_BOARD_ENCORE_ENLTV_FM53:
02858eed 788 ir_codes = RC_MAP_ENCORE_ENLTV_FM53;
bf1ece6a
MCC		 789 mask_keydown = 0x0040000;
790 mask_keycode = 0x00007f;
791 nec_gpio = 1;
792 break;
480f75ac 793 case SAA7134_BOARD_10MOONSTVMASTER3:
02858eed 794 ir_codes = RC_MAP_ENCORE_ENLTV;
480f75ac
TW		 795 mask_keycode = 0x5f80000;
796 mask_keyup = 0x8000000;
797 polling = 50; //ms
798 break;
f0ba356c 799 case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
02858eed 800 ir_codes = RC_MAP_GENIUS_TVGO_A11MCE;
f0ba356c
AP		 801 mask_keycode = 0xff;
802 mask_keydown = 0xf00000;
803 polling = 50; /* ms */
804 break;
9b000191 805 case SAA7134_BOARD_REAL_ANGEL_220:
02858eed 806 ir_codes = RC_MAP_REAL_AUDIO_220_32_KEYS;
9b000191
MCC		 807 mask_keycode = 0x3f00;
808 mask_keyup = 0x4000;
809 polling = 50; /* ms */
810 break;
26d5f3a3 811 case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
02858eed 812 ir_codes = RC_MAP_KWORLD_PLUS_TV_ANALOG;
26d5f3a3
MCC		 813 mask_keycode = 0x7f;
814 polling = 40; /* ms */
815 break;
ecfcfec8 816 case SAA7134_BOARD_VIDEOMATE_S350:
02858eed 817 ir_codes = RC_MAP_VIDEOMATE_S350;
ecfcfec8
IL		 818 mask_keycode = 0x003f00;
819 mask_keydown = 0x040000;
820 break;
0700adec 821 case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
02858eed 822 ir_codes = RC_MAP_WINFAST;
0700adec
MO		 823 mask_keycode = 0x5f00;
824 mask_keyup = 0x020000;
117e1348 825 polling = 50; /* ms */
0700adec 826 break;
1da177e4
LT		 827 }
828 if (NULL == ir_codes) {
829 printk("%s: Oops: IR config error [card=%d]\n",
830 dev->name, dev->board);
831 return -ENODEV;
832 }
833
b7df3910
DT		 834 ir = kzalloc(sizeof(*ir), GFP_KERNEL);
835 input_dev = input_allocate_device();
836 if (!ir || !input_dev) {
b07b4783
DT		 837 err = -ENOMEM;
838 goto err_out_free;
b7df3910 839 }
1da177e4 840
d271d1c2 841 ir->dev = input_dev;
02108949
MCC		 842 dev->remote = ir;
843
844 ir->running = 0;
d271d1c2 845
1da177e4
LT		 846 /* init hardware-specific stuff */
847 ir->mask_keycode = mask_keycode;
848 ir->mask_keydown = mask_keydown;
849 ir->mask_keyup = mask_keyup;
4ac97914 850 ir->polling = polling;
9160723e 851 ir->rc5_gpio = rc5_gpio;
622ecb30 852 ir->nec_gpio = nec_gpio;
a3572c34 853 ir->raw_decode = raw_decode;
1da177e4
LT		 854
855 /* init input device */
856 snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
857 saa7134_boards[dev->board].name);
858 snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
859 pci_name(dev->pci));
860
716aab44
MCC		 861
862 ir->props.priv = dev;
863 ir->props.open = saa7134_ir_open;
864 ir->props.close = saa7134_ir_close;
865
626cf697
MCC		 866 if (raw_decode)
867 ir->props.driver_type = RC_DRIVER_IR_RAW;
868
02858eed 869 if (!raw_decode && allow_protocol_change) {
02108949 870 ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
02108949 871 ir->props.change_protocol = saa7134_ir_change_protocol;
02108949 872 }
02858eed 873
579e7d60 874 err = ir_input_init(input_dev, &ir->ir, ir_type);
055cd556
MCC		 875 if (err < 0)
876 goto err_out_free;
877
b7df3910
DT		 878 input_dev->name = ir->name;
879 input_dev->phys = ir->phys;
880 input_dev->id.bustype = BUS_PCI;
881 input_dev->id.version = 1;
1da177e4 882 if (dev->pci->subsystem_vendor) {
b7df3910
DT		 883 input_dev->id.vendor = dev->pci->subsystem_vendor;
884 input_dev->id.product = dev->pci->subsystem_device;
1da177e4 885 } else {
b7df3910
DT		 886 input_dev->id.vendor = dev->pci->vendor;
887 input_dev->id.product = dev->pci->device;
1da177e4 888 }
2c8a3a33 889 input_dev->dev.parent = &dev->pci->dev;
1da177e4 890
02858eed 891 err = ir_input_register(ir->dev, ir_codes, &ir->props, MODULE_NAME);
b07b4783 892 if (err)
716aab44 893 goto err_out_free;
1da177e4 894
0938e319
P		 895 /* the remote isn't as bouncy as a keyboard */
896 ir->dev->rep[REP_DELAY] = repeat_delay;
897 ir->dev->rep[REP_PERIOD] = repeat_period;
898
1da177e4 899 return 0;
b07b4783 900
716aab44 901err_out_free:
b07b4783 902 dev->remote = NULL;
b07b4783
DT		 903 kfree(ir);
904 return err;
1da177e4
LT		 905}
906
907void saa7134_input_fini(struct saa7134_dev *dev)
908{
909 if (NULL == dev->remote)
910 return;
911
b07b4783 912 saa7134_ir_stop(dev);
38ef6aa8 913 ir_input_unregister(dev->remote->dev);
1da177e4
LT		 914 kfree(dev->remote);
915 dev->remote = NULL;
916}
917
c668f32d 918void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
ac9cd976 919{
43e16ea2 920 struct i2c_board_info info;
c668f32d 921
c668f32d
JD		 922 struct i2c_msg msg_msi = {
923 .addr = 0x50,
924 .flags = I2C_M_RD,
925 .len = 0,
926 .buf = NULL,
927 };
928
c668f32d
JD		 929 int rc;
930
ac9cd976 931 if (disable_ir) {
c668f32d 932 dprintk("IR has been disabled, not probing for i2c remote\n");
ac9cd976
RC		 933 return;
934 }
935
43e16ea2 936 memset(&info, 0, sizeof(struct i2c_board_info));
7aedd5ec 937 memset(&dev->init_data, 0, sizeof(dev->init_data));
43e16ea2 938 strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
c668f32d 939
ac9cd976
RC		 940 switch (dev->board) {
941 case SAA7134_BOARD_PINNACLE_PCTV_110i:
eb591af3 942 case SAA7134_BOARD_PINNACLE_PCTV_310i:
7aedd5ec 943 dev->init_data.name = "Pinnacle PCTV";
b93eedb6 944 if (pinnacle_remote == 0) {
7aedd5ec 945 dev->init_data.get_key = get_key_pinnacle_color;
02858eed 946 dev->init_data.ir_codes = RC_MAP_PINNACLE_COLOR;
43e16ea2 947 info.addr = 0x47;
b93eedb6 948 } else {
7aedd5ec 949 dev->init_data.get_key = get_key_pinnacle_grey;
02858eed 950 dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY;
43e16ea2 951 info.addr = 0x47;
b93eedb6 952 }
ac9cd976
RC		 953 break;
954 case SAA7134_BOARD_UPMOST_PURPLE_TV:
7aedd5ec
MCC		 955 dev->init_data.name = "Purple TV";
956 dev->init_data.get_key = get_key_purpletv;
02858eed 957 dev->init_data.ir_codes = RC_MAP_PURPLETV;
aef02aa1 958 info.addr = 0x7a;
ac9cd976 959 break;
ba340b40 960 case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
7aedd5ec
MCC		 961 dev->init_data.name = "MSI TV@nywhere Plus";
962 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
02858eed 963 dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
c72ba8e6
MCC		 964 /*
965 * MSI TV@nyware Plus requires more frequent polling
966 * otherwise it will miss some keypresses
967 */
968 dev->init_data.polling_interval = 50;
43e16ea2 969 info.addr = 0x30;
ec218a41
JD		 970 /* MSI TV@nywhere Plus controller doesn't seem to
971 respond to probes unless we read something from
972 an existing device. Weird...
973 REVISIT: might no longer be needed */
974 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
975 dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
976 msg_msi.addr, dev->i2c_adap.name,
977 (1 == rc) ? "yes" : "no");
ba340b40 978 break;
177aaaf8 979 case SAA7134_BOARD_HAUPPAUGE_HVR1110:
7aedd5ec
MCC		 980 dev->init_data.name = "HVR 1110";
981 dev->init_data.get_key = get_key_hvr1110;
02858eed 982 dev->init_data.ir_codes = RC_MAP_HAUPPAUGE_NEW;
30093e8b 983 info.addr = 0x71;
177aaaf8 984 break;
84d728c3
DB		 985 case SAA7134_BOARD_BEHOLD_607FM_MK3:
986 case SAA7134_BOARD_BEHOLD_607FM_MK5:
987 case SAA7134_BOARD_BEHOLD_609FM_MK3:
988 case SAA7134_BOARD_BEHOLD_609FM_MK5:
989 case SAA7134_BOARD_BEHOLD_607RDS_MK3:
990 case SAA7134_BOARD_BEHOLD_607RDS_MK5:
991 case SAA7134_BOARD_BEHOLD_609RDS_MK3:
992 case SAA7134_BOARD_BEHOLD_609RDS_MK5:
e8018c9e 993 case SAA7134_BOARD_BEHOLD_M6:
878cf2a5
DB		 994 case SAA7134_BOARD_BEHOLD_M63:
995 case SAA7134_BOARD_BEHOLD_M6_EXTRA:
02505271 996 case SAA7134_BOARD_BEHOLD_H6:
2012c87f 997 case SAA7134_BOARD_BEHOLD_X7:
0faa2ed5
DB		 998 case SAA7134_BOARD_BEHOLD_H7:
999 case SAA7134_BOARD_BEHOLD_A7:
7aedd5ec
MCC		 1000 dev->init_data.name = "BeholdTV";
1001 dev->init_data.get_key = get_key_beholdm6xx;
02858eed 1002 dev->init_data.ir_codes = RC_MAP_BEHOLD;
2ffbb64c 1003 dev->init_data.type = IR_TYPE_NEC;
30093e8b 1004 info.addr = 0x2d;
ac9cd976 1005 break;
d9a88e63
JD		 1006 case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
1007 case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
43e16ea2 1008 info.addr = 0x40;
d9a88e63 1009 break;
d995a187
LK		 1010 case SAA7134_BOARD_FLYDVB_TRIO:
1011 dev->init_data.name = "FlyDVB Trio";
1012 dev->init_data.get_key = get_key_flydvb_trio;
02858eed 1013 dev->init_data.ir_codes = RC_MAP_FLYDVB;
d995a187
LK		 1014 info.addr = 0x0b;
1015 break;
30093e8b
JD		 1016 default:
1017 dprintk("No I2C IR support for board %x\n", dev->board);
1018 return;
ac9cd976
RC		 1019 }
1020
7aedd5ec 1021 if (dev->init_data.name)
43e16ea2 1022 info.platform_data = &dev->init_data;
30093e8b 1023 i2c_new_device(&dev->i2c_adap, &info);
ac9cd976 1024}
9160723e 1025
a3572c34
MCC		 1026static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
1027{
1028 struct card_ir *ir = dev->remote;
1029 unsigned long timeout;
2f16f631 1030 int space;
a3572c34 1031
a3572c34
MCC		 1032 /* Generate initial event */
1033 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1034 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
2f16f631 1035 space = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
724e2495 1036 ir_raw_event_store_edge(dev->remote->dev, space ? IR_SPACE : IR_PULSE);
a3572c34 1037
a3572c34 1038
9f154782
MCC		 1039 /*
1040 * Wait 15 ms from the start of the first IR event before processing
1041 * the event. This time is enough for NEC protocol. May need adjustments
1042 * to work with other protocols.
1043 */
1044 if (!ir->active) {
1045 timeout = jiffies + jiffies_to_msecs(15);
1046 mod_timer(&ir->timer_end, timeout);
1047 ir->active = 1;
1048 }
a3572c34
MCC		 1049
1050 return 1;
1051}
1052
9160723e
HP		 1053static int saa7134_rc5_irq(struct saa7134_dev *dev)
1054{
1055 struct card_ir *ir = dev->remote;
1056 struct timeval tv;
1057 u32 gap;
1058 unsigned long current_jiffies, timeout;
1059
1060 /* get time of bit */
1061 current_jiffies = jiffies;
1062 do_gettimeofday(&tv);
1063
1064 /* avoid overflow with gap >1s */
1065 if (tv.tv_sec - ir->base_time.tv_sec > 1) {
1066 gap = 200000;
1067 } else {
1068 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
1069 tv.tv_usec - ir->base_time.tv_usec;
1070 }
1071
1072 /* active code => add bit */
1073 if (ir->active) {
1074 /* only if in the code (otherwise spurious IRQ or timer
1075 late) */
1076 if (ir->last_bit < 28) {
1077 ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
1078 ir_rc5_remote_gap;
1079 ir->code |= 1 << ir->last_bit;
1080 }
1081 /* starting new code */
1082 } else {
1083 ir->active = 1;
1084 ir->code = 0;
1085 ir->base_time = tv;
1086 ir->last_bit = 0;
1087
1088 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
1089 mod_timer(&ir->timer_end, timeout);
1090 }
1091
1092 return 1;
1093}
1094
622ecb30
MCC		 1095/* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
1096 The first pulse (start) has 9 + 4.5 ms
1da177e4 1097 */
622ecb30
MCC		 1098
1099static void saa7134_nec_timer(unsigned long data)
1100{
1101 struct saa7134_dev *dev = (struct saa7134_dev *) data;
1102 struct card_ir *ir = dev->remote;
1103
1104 dprintk("Cancel key repeat\n");
1105
1106 ir_input_nokey(ir->dev, &ir->ir);
1107}
1108
1109static void nec_task(unsigned long data)
1110{
1111 struct saa7134_dev *dev = (struct saa7134_dev *) data;
1112 struct card_ir *ir;
1113 struct timeval tv;
1114 int count, pulse, oldpulse, gap;
1115 u32 ircode = 0, not_code = 0;
1116 int ngap = 0;
1117
1118 if (!data) {
1119 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
1120 /* GPIO will be kept disabled */
1121 return;
1122 }
1123
1124 ir = dev->remote;
1125
1126 /* rising SAA7134_GPIO_GPRESCAN reads the status */
1127 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1128 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1129
1130 oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
1131 pulse = oldpulse;
1132
1133 do_gettimeofday(&tv);
1134 ir->base_time = tv;
1135
1136 /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
1137 Unfortunately, using IRQ to decode pulse didn't work, since it uses
1138 a pulse train of 38KHz. This means one pulse on each 52 us
1139 */
1140 do {
1141 /* Wait until the end of pulse/space or 5 ms */
1142 for (count = 0; count < 500; count++) {
1143 udelay(10);
1144 /* rising SAA7134_GPIO_GPRESCAN reads the status */
1145 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1146 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1147 pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
1148 & ir->mask_keydown;
1149 if (pulse != oldpulse)
1150 break;
1151 }
1152
1153 do_gettimeofday(&tv);
1154 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
1155 tv.tv_usec - ir->base_time.tv_usec;
1156
1157 if (!pulse) {
1158 /* Bit 0 has 560 us, while bit 1 has 1120 us.
1159 Do something only if bit == 1
1160 */
1161 if (ngap && (gap > 560 + 280)) {
1162 unsigned int shift = ngap - 1;
1163
1164 /* Address first, then command */
1165 if (shift < 8) {
1166 shift += 8;
1167 ircode |= 1 << shift;
1168 } else if (shift < 16) {
1169 not_code |= 1 << shift;
1170 } else if (shift < 24) {
1171 shift -= 16;
1172 ircode |= 1 << shift;
1173 } else {
1174 shift -= 24;
1175 not_code |= 1 << shift;
1176 }
1177 }
1178 ngap++;
1179 }
1180
1181
1182 ir->base_time = tv;
1183
1184 /* TIMEOUT - Long pulse */
1185 if (gap >= 5000)
1186 break;
1187 oldpulse = pulse;
1188 } while (ngap < 32);
1189
1190 if (ngap == 32) {
1191 /* FIXME: should check if not_code == ~ircode */
1192 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
1193
1194 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
1195 ir->code, ircode, not_code);
1196
8573b74a 1197 ir_input_keydown(ir->dev, &ir->ir, ir->code);
622ecb30
MCC		 1198 } else
1199 dprintk("Repeat last key\n");
1200
1201 /* Keep repeating the last key */
1202 mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
1203
3629e1da 1204 saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
622ecb30
MCC		 1205}
1206
1207static int saa7134_nec_irq(struct saa7134_dev *dev)
1208{
1209 struct card_ir *ir = dev->remote;
1210
3629e1da 1211 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
622ecb30
MCC		 1212 tasklet_schedule(&ir->tlet);
1213
1214 return 1;
1215}
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