411a8410620e616b2d978630dae80f7d00453d32
[linux-2.6.git] / drivers / media / video / saa7134 / saa7134-input.c
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;
31 module_param(disable_ir, int, 0444);
32 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
33
34 static unsigned int ir_debug;
35 module_param(ir_debug, int, 0644);
36 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
37
38 static int pinnacle_remote;
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->name , ## arg)
64
65 /* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
66 static int saa7134_rc5_irq(struct saa7134_dev *dev);
67 static int saa7134_nec_irq(struct saa7134_dev *dev);
68 static void nec_task(unsigned long data);
69 static void saa7134_nec_timer(unsigned long data);
70
71 /* -------------------- GPIO generic keycode builder -------------------- */
72
73 static int build_key(struct saa7134_dev *dev)
74 {
75         struct card_ir *ir = dev->remote;
76         u32 gpio, data;
77
78         /* here comes the additional handshake steps for some cards */
79         switch (dev->board) {
80         case SAA7134_BOARD_GOTVIEW_7135:
81                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
82                 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
83                 break;
84         }
85         /* rising SAA7134_GPIO_GPRESCAN reads the status */
86         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
87         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
88
89         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
90         if (ir->polling) {
91                 if (ir->last_gpio == gpio)
92                         return 0;
93                 ir->last_gpio = gpio;
94         }
95
96         data = ir_extract_bits(gpio, ir->mask_keycode);
97         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
98                 gpio, ir->mask_keycode, data);
99
100         switch (dev->board) {
101         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
102                 if (data == ir->mask_keycode)
103                         ir_input_nokey(ir->dev, &ir->ir);
104                 else
105                         ir_input_keydown(ir->dev, &ir->ir, data);
106                 return 0;
107         }
108
109         if (ir->polling) {
110                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
111                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
112                         ir_input_keydown(ir->dev, &ir->ir, data);
113                 } else {
114                         ir_input_nokey(ir->dev, &ir->ir);
115                 }
116         }
117         else {  /* IRQ driven mode - handle key press and release in one go */
118                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
119                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
120                         ir_input_keydown(ir->dev, &ir->ir, data);
121                         ir_input_nokey(ir->dev, &ir->ir);
122                 }
123         }
124
125         return 0;
126 }
127
128 /* --------------------- Chip specific I2C key builders ----------------- */
129
130 static int get_key_flydvb_trio(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
131 {
132         int gpio;
133         int attempt = 0;
134         unsigned char b;
135
136         /* We need this to access GPI Used by the saa_readl macro. */
137         struct saa7134_dev *dev = ir->c->adapter->algo_data;
138
139         if (dev == NULL) {
140                 dprintk("get_key_flydvb_trio: "
141                          "gir->c->adapter->algo_data is NULL!\n");
142                 return -EIO;
143         }
144
145         /* rising SAA7134_GPIGPRESCAN reads the status */
146         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
147         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
148
149         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
150
151         if (0x40000 & ~gpio)
152                 return 0; /* No button press */
153
154         /* No button press - only before first key pressed */
155         if (b == 0xFF)
156                 return 0;
157
158         /* poll IR chip */
159         /* weak up the IR chip */
160         b = 0;
161
162         while (1 != i2c_master_send(ir->c, &b, 1)) {
163                 if ((attempt++) < 10) {
164                         /*
165                          * wait a bit for next attempt -
166                          * I don't know how make it better
167                          */
168                         msleep(10);
169                         continue;
170                 }
171                 i2cdprintk("send wake up byte to pic16C505 (IR chip)"
172                            "failed %dx\n", attempt);
173                 return -EIO;
174         }
175         if (1 != i2c_master_recv(ir->c, &b, 1)) {
176                 i2cdprintk("read error\n");
177                 return -EIO;
178         }
179
180         *ir_key = b;
181         *ir_raw = b;
182         return 1;
183 }
184
185 static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
186                                        u32 *ir_raw)
187 {
188         unsigned char b;
189         int gpio;
190
191         /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
192         struct saa7134_dev *dev = ir->c->adapter->algo_data;
193         if (dev == NULL) {
194                 dprintk("get_key_msi_tvanywhere_plus: "
195                         "gir->c->adapter->algo_data is NULL!\n");
196                 return -EIO;
197         }
198
199         /* rising SAA7134_GPIO_GPRESCAN reads the status */
200
201         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
202         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
203
204         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
205
206         /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
207            I2C receive if gpio&0x40 is not low. */
208
209         if (gpio & 0x40)
210                 return 0;       /* No button press */
211
212         /* GPIO says there is a button press. Get it. */
213
214         if (1 != i2c_master_recv(ir->c, &b, 1)) {
215                 i2cdprintk("read error\n");
216                 return -EIO;
217         }
218
219         /* No button press */
220
221         if (b == 0xff)
222                 return 0;
223
224         /* Button pressed */
225
226         dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
227         *ir_key = b;
228         *ir_raw = b;
229         return 1;
230 }
231
232 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
233 {
234         unsigned char b;
235
236         /* poll IR chip */
237         if (1 != i2c_master_recv(ir->c, &b, 1)) {
238                 i2cdprintk("read error\n");
239                 return -EIO;
240         }
241
242         /* no button press */
243         if (b==0)
244                 return 0;
245
246         /* repeating */
247         if (b & 0x80)
248                 return 1;
249
250         *ir_key = b;
251         *ir_raw = b;
252         return 1;
253 }
254
255 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
256 {
257         unsigned char buf[5], cod4, code3, code4;
258
259         /* poll IR chip */
260         if (5 != i2c_master_recv(ir->c, buf, 5))
261                 return -EIO;
262
263         cod4    = buf[4];
264         code4   = (cod4 >> 2);
265         code3   = buf[3];
266         if (code3 == 0)
267                 /* no key pressed */
268                 return 0;
269
270         /* return key */
271         *ir_key = code4;
272         *ir_raw = code4;
273         return 1;
274 }
275
276
277 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
278 {
279         unsigned char data[12];
280         u32 gpio;
281
282         struct saa7134_dev *dev = ir->c->adapter->algo_data;
283
284         /* rising SAA7134_GPIO_GPRESCAN reads the status */
285         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
286         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
287
288         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
289
290         if (0x400000 & ~gpio)
291                 return 0; /* No button press */
292
293         ir->c->addr = 0x5a >> 1;
294
295         if (12 != i2c_master_recv(ir->c, data, 12)) {
296                 i2cdprintk("read error\n");
297                 return -EIO;
298         }
299         /* IR of this card normally decode signals NEC-standard from
300          * - Sven IHOO MT 5.1R remote. xxyye718
301          * - Sven DVD HD-10xx remote. xxyyf708
302          * - BBK ...
303          * - mayby others
304          * So, skip not our, if disable full codes mode.
305          */
306         if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
307                 return 0;
308
309         /* Wrong data decode fix */
310         if (data[9] != (unsigned char)(~data[8]))
311                 return 0;
312
313         *ir_key = data[9];
314         *ir_raw = data[9];
315
316         return 1;
317 }
318
319 /* Common (grey or coloured) pinnacle PCTV remote handling
320  *
321  */
322 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
323                             int parity_offset, int marker, int code_modulo)
324 {
325         unsigned char b[4];
326         unsigned int start = 0,parity = 0,code = 0;
327
328         /* poll IR chip */
329         if (4 != i2c_master_recv(ir->c, b, 4)) {
330                 i2cdprintk("read error\n");
331                 return -EIO;
332         }
333
334         for (start = 0; start < ARRAY_SIZE(b); start++) {
335                 if (b[start] == marker) {
336                         code=b[(start+parity_offset + 1) % 4];
337                         parity=b[(start+parity_offset) % 4];
338                 }
339         }
340
341         /* Empty Request */
342         if (parity == 0)
343                 return 0;
344
345         /* Repeating... */
346         if (ir->old == parity)
347                 return 0;
348
349         ir->old = parity;
350
351         /* drop special codes when a key is held down a long time for the grey controller
352            In this case, the second bit of the code is asserted */
353         if (marker == 0xfe && (code & 0x40))
354                 return 0;
355
356         code %= code_modulo;
357
358         *ir_raw = code;
359         *ir_key = code;
360
361         i2cdprintk("Pinnacle PCTV key %02x\n", code);
362
363         return 1;
364 }
365
366 /* The grey pinnacle PCTV remote
367  *
368  *  There are one issue with this remote:
369  *   - I2c packet does not change when the same key is pressed quickly. The workaround
370  *     is to hold down each key for about half a second, so that another code is generated
371  *     in the i2c packet, and the function can distinguish key presses.
372  *
373  * Sylvain Pasche <sylvain.pasche@gmail.com>
374  */
375 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
376 {
377
378         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
379 }
380
381
382 /* The new pinnacle PCTV remote (with the colored buttons)
383  *
384  * Ricardo Cerqueira <v4l@cerqueira.org>
385  */
386 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
387 {
388         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
389          *
390          * this is the only value that results in 42 unique
391          * codes < 128
392          */
393
394         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
395 }
396
397 void saa7134_input_irq(struct saa7134_dev *dev)
398 {
399         struct card_ir *ir = dev->remote;
400
401         if (ir->nec_gpio) {
402                 saa7134_nec_irq(dev);
403         } else if (!ir->polling && !ir->rc5_gpio) {
404                 build_key(dev);
405         } else if (ir->rc5_gpio) {
406                 saa7134_rc5_irq(dev);
407         }
408 }
409
410 static void saa7134_input_timer(unsigned long data)
411 {
412         struct saa7134_dev *dev = (struct saa7134_dev *)data;
413         struct card_ir *ir = dev->remote;
414
415         build_key(dev);
416         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
417 }
418
419 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
420 {
421         if (ir->polling) {
422                 setup_timer(&ir->timer, saa7134_input_timer,
423                             (unsigned long)dev);
424                 ir->timer.expires  = jiffies + HZ;
425                 add_timer(&ir->timer);
426         } else if (ir->rc5_gpio) {
427                 /* set timer_end for code completion */
428                 init_timer(&ir->timer_end);
429                 ir->timer_end.function = ir_rc5_timer_end;
430                 ir->timer_end.data = (unsigned long)ir;
431                 init_timer(&ir->timer_keyup);
432                 ir->timer_keyup.function = ir_rc5_timer_keyup;
433                 ir->timer_keyup.data = (unsigned long)ir;
434                 ir->shift_by = 2;
435                 ir->start = 0x2;
436                 ir->addr = 0x17;
437                 ir->rc5_key_timeout = ir_rc5_key_timeout;
438                 ir->rc5_remote_gap = ir_rc5_remote_gap;
439         } else if (ir->nec_gpio) {
440                 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
441                             (unsigned long)dev);
442                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
443         }
444 }
445
446 void saa7134_ir_stop(struct saa7134_dev *dev)
447 {
448         if (dev->remote->polling)
449                 del_timer_sync(&dev->remote->timer);
450 }
451
452 int saa7134_input_init1(struct saa7134_dev *dev)
453 {
454         struct card_ir *ir;
455         struct input_dev *input_dev;
456         struct ir_scancode_table *ir_codes = NULL;
457         u32 mask_keycode = 0;
458         u32 mask_keydown = 0;
459         u32 mask_keyup   = 0;
460         int polling      = 0;
461         int rc5_gpio     = 0;
462         int nec_gpio     = 0;
463         int ir_type      = IR_TYPE_OTHER;
464         int err;
465
466         if (dev->has_remote != SAA7134_REMOTE_GPIO)
467                 return -ENODEV;
468         if (disable_ir)
469                 return -ENODEV;
470
471         /* detect & configure */
472         switch (dev->board) {
473         case SAA7134_BOARD_FLYVIDEO2000:
474         case SAA7134_BOARD_FLYVIDEO3000:
475         case SAA7134_BOARD_FLYTVPLATINUM_FM:
476         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
477         case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
478                 ir_codes     = &ir_codes_flyvideo_table;
479                 mask_keycode = 0xEC00000;
480                 mask_keydown = 0x0040000;
481                 break;
482         case SAA7134_BOARD_CINERGY400:
483         case SAA7134_BOARD_CINERGY600:
484         case SAA7134_BOARD_CINERGY600_MK3:
485                 ir_codes     = &ir_codes_cinergy_table;
486                 mask_keycode = 0x00003f;
487                 mask_keyup   = 0x040000;
488                 break;
489         case SAA7134_BOARD_ECS_TVP3XP:
490         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
491                 ir_codes     = &ir_codes_eztv_table;
492                 mask_keycode = 0x00017c;
493                 mask_keyup   = 0x000002;
494                 polling      = 50; // ms
495                 break;
496         case SAA7134_BOARD_KWORLD_XPERT:
497         case SAA7134_BOARD_AVACSSMARTTV:
498                 ir_codes     = &ir_codes_pixelview_table;
499                 mask_keycode = 0x00001F;
500                 mask_keyup   = 0x000020;
501                 polling      = 50; // ms
502                 break;
503         case SAA7134_BOARD_MD2819:
504         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
505         case SAA7134_BOARD_AVERMEDIA_305:
506         case SAA7134_BOARD_AVERMEDIA_307:
507         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
508         case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
509         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
510         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
511         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
512         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
513         case SAA7134_BOARD_AVERMEDIA_M102:
514         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
515                 ir_codes     = &ir_codes_avermedia_table;
516                 mask_keycode = 0x0007C8;
517                 mask_keydown = 0x000010;
518                 polling      = 50; // ms
519                 /* Set GPIO pin2 to high to enable the IR controller */
520                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
521                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
522                 break;
523         case SAA7134_BOARD_AVERMEDIA_M135A:
524                 ir_codes     = &ir_codes_avermedia_m135a_table;
525                 mask_keydown = 0x0040000;
526                 mask_keycode = 0x00013f;
527                 nec_gpio     = 1;
528                 break;
529         case SAA7134_BOARD_AVERMEDIA_777:
530         case SAA7134_BOARD_AVERMEDIA_A16AR:
531                 ir_codes     = &ir_codes_avermedia_table;
532                 mask_keycode = 0x02F200;
533                 mask_keydown = 0x000400;
534                 polling      = 50; // ms
535                 /* Without this we won't receive key up events */
536                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
537                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
538                 break;
539         case SAA7134_BOARD_AVERMEDIA_A16D:
540                 ir_codes     = &ir_codes_avermedia_a16d_table;
541                 mask_keycode = 0x02F200;
542                 mask_keydown = 0x000400;
543                 polling      = 50; /* ms */
544                 /* Without this we won't receive key up events */
545                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
546                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
547                 break;
548         case SAA7134_BOARD_KWORLD_TERMINATOR:
549                 ir_codes     = &ir_codes_pixelview_table;
550                 mask_keycode = 0x00001f;
551                 mask_keyup   = 0x000060;
552                 polling      = 50; // ms
553                 break;
554         case SAA7134_BOARD_MANLI_MTV001:
555         case SAA7134_BOARD_MANLI_MTV002:
556                 ir_codes     = &ir_codes_manli_table;
557                 mask_keycode = 0x001f00;
558                 mask_keyup   = 0x004000;
559                 polling      = 50; /* ms */
560                 break;
561         case SAA7134_BOARD_BEHOLD_409FM:
562         case SAA7134_BOARD_BEHOLD_401:
563         case SAA7134_BOARD_BEHOLD_403:
564         case SAA7134_BOARD_BEHOLD_403FM:
565         case SAA7134_BOARD_BEHOLD_405:
566         case SAA7134_BOARD_BEHOLD_405FM:
567         case SAA7134_BOARD_BEHOLD_407:
568         case SAA7134_BOARD_BEHOLD_407FM:
569         case SAA7134_BOARD_BEHOLD_409:
570         case SAA7134_BOARD_BEHOLD_505FM:
571         case SAA7134_BOARD_BEHOLD_505RDS:
572         case SAA7134_BOARD_BEHOLD_507_9FM:
573         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
574         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
575                 ir_codes     = &ir_codes_manli_table;
576                 mask_keycode = 0x003f00;
577                 mask_keyup   = 0x004000;
578                 polling      = 50; /* ms */
579                 break;
580         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
581                 ir_codes     = &ir_codes_behold_columbus_table;
582                 mask_keycode = 0x003f00;
583                 mask_keyup   = 0x004000;
584                 polling      = 50; // ms
585                 break;
586         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
587                 ir_codes     = &ir_codes_pctv_sedna_table;
588                 mask_keycode = 0x001f00;
589                 mask_keyup   = 0x004000;
590                 polling      = 50; // ms
591                 break;
592         case SAA7134_BOARD_GOTVIEW_7135:
593                 ir_codes     = &ir_codes_gotview7135_table;
594                 mask_keycode = 0x0003CC;
595                 mask_keydown = 0x000010;
596                 polling      = 5; /* ms */
597                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
598                 break;
599         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
600         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
601         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
602                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
603                 mask_keycode = 0x00003F;
604                 mask_keyup   = 0x400000;
605                 polling      = 50; // ms
606                 break;
607         case SAA7134_BOARD_PROTEUS_2309:
608                 ir_codes     = &ir_codes_proteus_2309_table;
609                 mask_keycode = 0x00007F;
610                 mask_keyup   = 0x000080;
611                 polling      = 50; // ms
612                 break;
613         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
614         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
615                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
616                 mask_keycode = 0x003F00;
617                 mask_keyup   = 0x040000;
618                 break;
619         case SAA7134_BOARD_FLYDVBS_LR300:
620         case SAA7134_BOARD_FLYDVBT_LR301:
621         case SAA7134_BOARD_FLYDVBTDUO:
622                 ir_codes     = &ir_codes_flydvb_table;
623                 mask_keycode = 0x0001F00;
624                 mask_keydown = 0x0040000;
625                 break;
626         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
627         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
628         case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
629                 ir_codes     = &ir_codes_asus_pc39_table;
630                 mask_keydown = 0x0040000;
631                 rc5_gpio = 1;
632                 break;
633         case SAA7134_BOARD_ENCORE_ENLTV:
634         case SAA7134_BOARD_ENCORE_ENLTV_FM:
635                 ir_codes     = &ir_codes_encore_enltv_table;
636                 mask_keycode = 0x00007f;
637                 mask_keyup   = 0x040000;
638                 polling      = 50; // ms
639                 break;
640         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
641                 ir_codes     = &ir_codes_encore_enltv_fm53_table;
642                 mask_keydown = 0x0040000;
643                 mask_keycode = 0x00007f;
644                 nec_gpio = 1;
645                 break;
646         case SAA7134_BOARD_10MOONSTVMASTER3:
647                 ir_codes     = &ir_codes_encore_enltv_table;
648                 mask_keycode = 0x5f80000;
649                 mask_keyup   = 0x8000000;
650                 polling      = 50; //ms
651                 break;
652         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
653                 ir_codes     = &ir_codes_genius_tvgo_a11mce_table;
654                 mask_keycode = 0xff;
655                 mask_keydown = 0xf00000;
656                 polling = 50; /* ms */
657                 break;
658         case SAA7134_BOARD_REAL_ANGEL_220:
659                 ir_codes     = &ir_codes_real_audio_220_32_keys_table;
660                 mask_keycode = 0x3f00;
661                 mask_keyup   = 0x4000;
662                 polling = 50; /* ms */
663                 break;
664         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
665                 ir_codes     = &ir_codes_kworld_plus_tv_analog_table;
666                 mask_keycode = 0x7f;
667                 polling = 40; /* ms */
668                 break;
669         case SAA7134_BOARD_VIDEOMATE_S350:
670                 ir_codes     = &ir_codes_videomate_s350_table;
671                 mask_keycode = 0x003f00;
672                 mask_keydown = 0x040000;
673                 break;
674         case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
675                 ir_codes     = &ir_codes_winfast_table;
676                 mask_keycode = 0x5f00;
677                 mask_keyup   = 0x020000;
678                 polling      = 50; /* ms */
679                 break;
680         break;
681         }
682         if (NULL == ir_codes) {
683                 printk("%s: Oops: IR config error [card=%d]\n",
684                        dev->name, dev->board);
685                 return -ENODEV;
686         }
687
688         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
689         input_dev = input_allocate_device();
690         if (!ir || !input_dev) {
691                 err = -ENOMEM;
692                 goto err_out_free;
693         }
694
695         ir->dev = input_dev;
696
697         /* init hardware-specific stuff */
698         ir->mask_keycode = mask_keycode;
699         ir->mask_keydown = mask_keydown;
700         ir->mask_keyup   = mask_keyup;
701         ir->polling      = polling;
702         ir->rc5_gpio     = rc5_gpio;
703         ir->nec_gpio     = nec_gpio;
704
705         /* init input device */
706         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
707                  saa7134_boards[dev->board].name);
708         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
709                  pci_name(dev->pci));
710
711         err = ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
712         if (err < 0)
713                 goto err_out_free;
714
715         input_dev->name = ir->name;
716         input_dev->phys = ir->phys;
717         input_dev->id.bustype = BUS_PCI;
718         input_dev->id.version = 1;
719         if (dev->pci->subsystem_vendor) {
720                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
721                 input_dev->id.product = dev->pci->subsystem_device;
722         } else {
723                 input_dev->id.vendor  = dev->pci->vendor;
724                 input_dev->id.product = dev->pci->device;
725         }
726         input_dev->dev.parent = &dev->pci->dev;
727
728         dev->remote = ir;
729         saa7134_ir_start(dev, ir);
730
731         err = input_register_device(ir->dev);
732         if (err)
733                 goto err_out_stop;
734
735         /* the remote isn't as bouncy as a keyboard */
736         ir->dev->rep[REP_DELAY] = repeat_delay;
737         ir->dev->rep[REP_PERIOD] = repeat_period;
738
739         return 0;
740
741  err_out_stop:
742         saa7134_ir_stop(dev);
743         dev->remote = NULL;
744  err_out_free:
745         ir_input_free(input_dev);
746         input_free_device(input_dev);
747         kfree(ir);
748         return err;
749 }
750
751 void saa7134_input_fini(struct saa7134_dev *dev)
752 {
753         if (NULL == dev->remote)
754                 return;
755
756         saa7134_ir_stop(dev);
757         ir_input_free(dev->remote->dev);
758         input_unregister_device(dev->remote->dev);
759         kfree(dev->remote);
760         dev->remote = NULL;
761 }
762
763 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
764 {
765         struct i2c_board_info info;
766
767         struct i2c_msg msg_msi = {
768                 .addr = 0x50,
769                 .flags = I2C_M_RD,
770                 .len = 0,
771                 .buf = NULL,
772         };
773
774         int rc;
775
776         if (disable_ir) {
777                 dprintk("IR has been disabled, not probing for i2c remote\n");
778                 return;
779         }
780
781         memset(&info, 0, sizeof(struct i2c_board_info));
782         memset(&dev->init_data, 0, sizeof(dev->init_data));
783         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
784
785         switch (dev->board) {
786         case SAA7134_BOARD_PINNACLE_PCTV_110i:
787         case SAA7134_BOARD_PINNACLE_PCTV_310i:
788                 dev->init_data.name = "Pinnacle PCTV";
789                 if (pinnacle_remote == 0) {
790                         dev->init_data.get_key = get_key_pinnacle_color;
791                         dev->init_data.ir_codes = &ir_codes_pinnacle_color_table;
792                         info.addr = 0x47;
793                 } else {
794                         dev->init_data.get_key = get_key_pinnacle_grey;
795                         dev->init_data.ir_codes = &ir_codes_pinnacle_grey_table;
796                         info.addr = 0x47;
797                 }
798                 break;
799         case SAA7134_BOARD_UPMOST_PURPLE_TV:
800                 dev->init_data.name = "Purple TV";
801                 dev->init_data.get_key = get_key_purpletv;
802                 dev->init_data.ir_codes = &ir_codes_purpletv_table;
803                 info.addr = 0x7a;
804                 break;
805         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
806                 dev->init_data.name = "MSI TV@nywhere Plus";
807                 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
808                 dev->init_data.ir_codes = &ir_codes_msi_tvanywhere_plus_table;
809                 info.addr = 0x30;
810                 /* MSI TV@nywhere Plus controller doesn't seem to
811                    respond to probes unless we read something from
812                    an existing device. Weird...
813                    REVISIT: might no longer be needed */
814                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
815                 dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
816                         msg_msi.addr, dev->i2c_adap.name,
817                         (1 == rc) ? "yes" : "no");
818                 break;
819         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
820                 dev->init_data.name = "HVR 1110";
821                 dev->init_data.get_key = get_key_hvr1110;
822                 dev->init_data.ir_codes = &ir_codes_hauppauge_new_table;
823                 info.addr = 0x71;
824                 break;
825         case SAA7134_BOARD_BEHOLD_607FM_MK3:
826         case SAA7134_BOARD_BEHOLD_607FM_MK5:
827         case SAA7134_BOARD_BEHOLD_609FM_MK3:
828         case SAA7134_BOARD_BEHOLD_609FM_MK5:
829         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
830         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
831         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
832         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
833         case SAA7134_BOARD_BEHOLD_M6:
834         case SAA7134_BOARD_BEHOLD_M63:
835         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
836         case SAA7134_BOARD_BEHOLD_H6:
837         case SAA7134_BOARD_BEHOLD_X7:
838                 dev->init_data.name = "BeholdTV";
839                 dev->init_data.get_key = get_key_beholdm6xx;
840                 dev->init_data.ir_codes = &ir_codes_behold_table;
841                 info.addr = 0x2d;
842                 break;
843         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
844         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
845                 info.addr = 0x40;
846                 break;
847         case SAA7134_BOARD_FLYDVB_TRIO:
848                 dev->init_data.name = "FlyDVB Trio";
849                 dev->init_data.get_key = get_key_flydvb_trio;
850                 dev->init_data.ir_codes = &ir_codes_flydvb_table;
851                 info.addr = 0x0b;
852                 break;
853         default:
854                 dprintk("No I2C IR support for board %x\n", dev->board);
855                 return;
856         }
857
858         if (dev->init_data.name)
859                 info.platform_data = &dev->init_data;
860         i2c_new_device(&dev->i2c_adap, &info);
861 }
862
863 static int saa7134_rc5_irq(struct saa7134_dev *dev)
864 {
865         struct card_ir *ir = dev->remote;
866         struct timeval tv;
867         u32 gap;
868         unsigned long current_jiffies, timeout;
869
870         /* get time of bit */
871         current_jiffies = jiffies;
872         do_gettimeofday(&tv);
873
874         /* avoid overflow with gap >1s */
875         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
876                 gap = 200000;
877         } else {
878                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
879                     tv.tv_usec - ir->base_time.tv_usec;
880         }
881
882         /* active code => add bit */
883         if (ir->active) {
884                 /* only if in the code (otherwise spurious IRQ or timer
885                    late) */
886                 if (ir->last_bit < 28) {
887                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
888                             ir_rc5_remote_gap;
889                         ir->code |= 1 << ir->last_bit;
890                 }
891                 /* starting new code */
892         } else {
893                 ir->active = 1;
894                 ir->code = 0;
895                 ir->base_time = tv;
896                 ir->last_bit = 0;
897
898                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
899                 mod_timer(&ir->timer_end, timeout);
900         }
901
902         return 1;
903 }
904
905
906 /* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
907    The first pulse (start) has 9 + 4.5 ms
908  */
909
910 static void saa7134_nec_timer(unsigned long data)
911 {
912         struct saa7134_dev *dev = (struct saa7134_dev *) data;
913         struct card_ir *ir = dev->remote;
914
915         dprintk("Cancel key repeat\n");
916
917         ir_input_nokey(ir->dev, &ir->ir);
918 }
919
920 static void nec_task(unsigned long data)
921 {
922         struct saa7134_dev *dev = (struct saa7134_dev *) data;
923         struct card_ir *ir;
924         struct timeval tv;
925         int count, pulse, oldpulse, gap;
926         u32 ircode = 0, not_code = 0;
927         int ngap = 0;
928
929         if (!data) {
930                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
931                 /* GPIO will be kept disabled */
932                 return;
933         }
934
935         ir = dev->remote;
936
937         /* rising SAA7134_GPIO_GPRESCAN reads the status */
938         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
939         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
940
941         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
942         pulse = oldpulse;
943
944         do_gettimeofday(&tv);
945         ir->base_time = tv;
946
947         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
948            Unfortunately, using IRQ to decode pulse didn't work, since it uses
949            a pulse train of 38KHz. This means one pulse on each 52 us
950          */
951         do {
952                 /* Wait until the end of pulse/space or 5 ms */
953                 for (count = 0; count < 500; count++)  {
954                         udelay(10);
955                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
956                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
957                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
958                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
959                                 & ir->mask_keydown;
960                         if (pulse != oldpulse)
961                                 break;
962                 }
963
964                 do_gettimeofday(&tv);
965                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
966                                 tv.tv_usec - ir->base_time.tv_usec;
967
968                 if (!pulse) {
969                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
970                            Do something only if bit == 1
971                          */
972                         if (ngap && (gap > 560 + 280)) {
973                                 unsigned int shift = ngap - 1;
974
975                                 /* Address first, then command */
976                                 if (shift < 8) {
977                                         shift += 8;
978                                         ircode |= 1 << shift;
979                                 } else if (shift < 16) {
980                                         not_code |= 1 << shift;
981                                 } else if (shift < 24) {
982                                         shift -= 16;
983                                         ircode |= 1 << shift;
984                                 } else {
985                                         shift -= 24;
986                                         not_code |= 1 << shift;
987                                 }
988                         }
989                         ngap++;
990                 }
991
992
993                 ir->base_time = tv;
994
995                 /* TIMEOUT - Long pulse */
996                 if (gap >= 5000)
997                         break;
998                 oldpulse = pulse;
999         } while (ngap < 32);
1000
1001         if (ngap == 32) {
1002                 /* FIXME: should check if not_code == ~ircode */
1003                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
1004
1005                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
1006                          ir->code, ircode, not_code);
1007
1008                 ir_input_keydown(ir->dev, &ir->ir, ir->code);
1009         } else
1010                 dprintk("Repeat last key\n");
1011
1012         /* Keep repeating the last key */
1013         mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
1014
1015         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1016 }
1017
1018 static int saa7134_nec_irq(struct saa7134_dev *dev)
1019 {
1020         struct card_ir *ir = dev->remote;
1021
1022         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1023         tasklet_schedule(&ir->tlet);
1024
1025         return 1;
1026 }