V4L/DVB (13537): ir: Prepare the code for dynamic keycode table allocation
[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_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
131                                        u32 *ir_raw)
132 {
133         unsigned char b;
134         int gpio;
135
136         /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
137         struct saa7134_dev *dev = ir->c->adapter->algo_data;
138         if (dev == NULL) {
139                 dprintk("get_key_msi_tvanywhere_plus: "
140                         "gir->c->adapter->algo_data is NULL!\n");
141                 return -EIO;
142         }
143
144         /* rising SAA7134_GPIO_GPRESCAN reads the status */
145
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         /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
152            I2C receive if gpio&0x40 is not low. */
153
154         if (gpio & 0x40)
155                 return 0;       /* No button press */
156
157         /* GPIO says there is a button press. Get it. */
158
159         if (1 != i2c_master_recv(ir->c, &b, 1)) {
160                 i2cdprintk("read error\n");
161                 return -EIO;
162         }
163
164         /* No button press */
165
166         if (b == 0xff)
167                 return 0;
168
169         /* Button pressed */
170
171         dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
172         *ir_key = b;
173         *ir_raw = b;
174         return 1;
175 }
176
177 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
178 {
179         unsigned char b;
180
181         /* poll IR chip */
182         if (1 != i2c_master_recv(ir->c, &b, 1)) {
183                 i2cdprintk("read error\n");
184                 return -EIO;
185         }
186
187         /* no button press */
188         if (b==0)
189                 return 0;
190
191         /* repeating */
192         if (b & 0x80)
193                 return 1;
194
195         *ir_key = b;
196         *ir_raw = b;
197         return 1;
198 }
199
200 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
201 {
202         unsigned char buf[5], cod4, code3, code4;
203
204         /* poll IR chip */
205         if (5 != i2c_master_recv(ir->c, buf, 5))
206                 return -EIO;
207
208         cod4    = buf[4];
209         code4   = (cod4 >> 2);
210         code3   = buf[3];
211         if (code3 == 0)
212                 /* no key pressed */
213                 return 0;
214
215         /* return key */
216         *ir_key = code4;
217         *ir_raw = code4;
218         return 1;
219 }
220
221
222 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
223 {
224         unsigned char data[12];
225         u32 gpio;
226
227         struct saa7134_dev *dev = ir->c->adapter->algo_data;
228
229         /* rising SAA7134_GPIO_GPRESCAN reads the status */
230         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
231         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
232
233         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
234
235         if (0x400000 & ~gpio)
236                 return 0; /* No button press */
237
238         ir->c->addr = 0x5a >> 1;
239
240         if (12 != i2c_master_recv(ir->c, data, 12)) {
241                 i2cdprintk("read error\n");
242                 return -EIO;
243         }
244         /* IR of this card normally decode signals NEC-standard from
245          * - Sven IHOO MT 5.1R remote. xxyye718
246          * - Sven DVD HD-10xx remote. xxyyf708
247          * - BBK ...
248          * - mayby others
249          * So, skip not our, if disable full codes mode.
250          */
251         if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
252                 return 0;
253
254         /* Wrong data decode fix */
255         if (data[9] != (unsigned char)(~data[8]))
256                 return 0;
257
258         *ir_key = data[9];
259         *ir_raw = data[9];
260
261         return 1;
262 }
263
264 /* Common (grey or coloured) pinnacle PCTV remote handling
265  *
266  */
267 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
268                             int parity_offset, int marker, int code_modulo)
269 {
270         unsigned char b[4];
271         unsigned int start = 0,parity = 0,code = 0;
272
273         /* poll IR chip */
274         if (4 != i2c_master_recv(ir->c, b, 4)) {
275                 i2cdprintk("read error\n");
276                 return -EIO;
277         }
278
279         for (start = 0; start < ARRAY_SIZE(b); start++) {
280                 if (b[start] == marker) {
281                         code=b[(start+parity_offset + 1) % 4];
282                         parity=b[(start+parity_offset) % 4];
283                 }
284         }
285
286         /* Empty Request */
287         if (parity == 0)
288                 return 0;
289
290         /* Repeating... */
291         if (ir->old == parity)
292                 return 0;
293
294         ir->old = parity;
295
296         /* drop special codes when a key is held down a long time for the grey controller
297            In this case, the second bit of the code is asserted */
298         if (marker == 0xfe && (code & 0x40))
299                 return 0;
300
301         code %= code_modulo;
302
303         *ir_raw = code;
304         *ir_key = code;
305
306         i2cdprintk("Pinnacle PCTV key %02x\n", code);
307
308         return 1;
309 }
310
311 /* The grey pinnacle PCTV remote
312  *
313  *  There are one issue with this remote:
314  *   - I2c packet does not change when the same key is pressed quickly. The workaround
315  *     is to hold down each key for about half a second, so that another code is generated
316  *     in the i2c packet, and the function can distinguish key presses.
317  *
318  * Sylvain Pasche <sylvain.pasche@gmail.com>
319  */
320 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
321 {
322
323         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
324 }
325
326
327 /* The new pinnacle PCTV remote (with the colored buttons)
328  *
329  * Ricardo Cerqueira <v4l@cerqueira.org>
330  */
331 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
332 {
333         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
334          *
335          * this is the only value that results in 42 unique
336          * codes < 128
337          */
338
339         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
340 }
341
342 void saa7134_input_irq(struct saa7134_dev *dev)
343 {
344         struct card_ir *ir = dev->remote;
345
346         if (ir->nec_gpio) {
347                 saa7134_nec_irq(dev);
348         } else if (!ir->polling && !ir->rc5_gpio) {
349                 build_key(dev);
350         } else if (ir->rc5_gpio) {
351                 saa7134_rc5_irq(dev);
352         }
353 }
354
355 static void saa7134_input_timer(unsigned long data)
356 {
357         struct saa7134_dev *dev = (struct saa7134_dev *)data;
358         struct card_ir *ir = dev->remote;
359
360         build_key(dev);
361         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
362 }
363
364 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
365 {
366         if (ir->polling) {
367                 setup_timer(&ir->timer, saa7134_input_timer,
368                             (unsigned long)dev);
369                 ir->timer.expires  = jiffies + HZ;
370                 add_timer(&ir->timer);
371         } else if (ir->rc5_gpio) {
372                 /* set timer_end for code completion */
373                 init_timer(&ir->timer_end);
374                 ir->timer_end.function = ir_rc5_timer_end;
375                 ir->timer_end.data = (unsigned long)ir;
376                 init_timer(&ir->timer_keyup);
377                 ir->timer_keyup.function = ir_rc5_timer_keyup;
378                 ir->timer_keyup.data = (unsigned long)ir;
379                 ir->shift_by = 2;
380                 ir->start = 0x2;
381                 ir->addr = 0x17;
382                 ir->rc5_key_timeout = ir_rc5_key_timeout;
383                 ir->rc5_remote_gap = ir_rc5_remote_gap;
384         } else if (ir->nec_gpio) {
385                 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
386                             (unsigned long)dev);
387                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
388         }
389 }
390
391 void saa7134_ir_stop(struct saa7134_dev *dev)
392 {
393         if (dev->remote->polling)
394                 del_timer_sync(&dev->remote->timer);
395 }
396
397 int saa7134_input_init1(struct saa7134_dev *dev)
398 {
399         struct card_ir *ir;
400         struct input_dev *input_dev;
401         struct ir_scancode_table *ir_codes = NULL;
402         u32 mask_keycode = 0;
403         u32 mask_keydown = 0;
404         u32 mask_keyup   = 0;
405         int polling      = 0;
406         int rc5_gpio     = 0;
407         int nec_gpio     = 0;
408         int ir_type      = IR_TYPE_OTHER;
409         int err;
410
411         if (dev->has_remote != SAA7134_REMOTE_GPIO)
412                 return -ENODEV;
413         if (disable_ir)
414                 return -ENODEV;
415
416         /* detect & configure */
417         switch (dev->board) {
418         case SAA7134_BOARD_FLYVIDEO2000:
419         case SAA7134_BOARD_FLYVIDEO3000:
420         case SAA7134_BOARD_FLYTVPLATINUM_FM:
421         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
422         case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
423                 ir_codes     = &ir_codes_flyvideo_table;
424                 mask_keycode = 0xEC00000;
425                 mask_keydown = 0x0040000;
426                 break;
427         case SAA7134_BOARD_CINERGY400:
428         case SAA7134_BOARD_CINERGY600:
429         case SAA7134_BOARD_CINERGY600_MK3:
430                 ir_codes     = &ir_codes_cinergy_table;
431                 mask_keycode = 0x00003f;
432                 mask_keyup   = 0x040000;
433                 break;
434         case SAA7134_BOARD_ECS_TVP3XP:
435         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
436                 ir_codes     = &ir_codes_eztv_table;
437                 mask_keycode = 0x00017c;
438                 mask_keyup   = 0x000002;
439                 polling      = 50; // ms
440                 break;
441         case SAA7134_BOARD_KWORLD_XPERT:
442         case SAA7134_BOARD_AVACSSMARTTV:
443                 ir_codes     = &ir_codes_pixelview_table;
444                 mask_keycode = 0x00001F;
445                 mask_keyup   = 0x000020;
446                 polling      = 50; // ms
447                 break;
448         case SAA7134_BOARD_MD2819:
449         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
450         case SAA7134_BOARD_AVERMEDIA_305:
451         case SAA7134_BOARD_AVERMEDIA_307:
452         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
453         case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
454         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
455         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
456         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
457         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
458         case SAA7134_BOARD_AVERMEDIA_M102:
459         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
460                 ir_codes     = &ir_codes_avermedia_table;
461                 mask_keycode = 0x0007C8;
462                 mask_keydown = 0x000010;
463                 polling      = 50; // ms
464                 /* Set GPIO pin2 to high to enable the IR controller */
465                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
466                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
467                 break;
468         case SAA7134_BOARD_AVERMEDIA_M135A:
469                 ir_codes     = &ir_codes_avermedia_m135a_table;
470                 mask_keydown = 0x0040000;
471                 mask_keycode = 0x00013f;
472                 nec_gpio     = 1;
473                 break;
474         case SAA7134_BOARD_AVERMEDIA_777:
475         case SAA7134_BOARD_AVERMEDIA_A16AR:
476                 ir_codes     = &ir_codes_avermedia_table;
477                 mask_keycode = 0x02F200;
478                 mask_keydown = 0x000400;
479                 polling      = 50; // ms
480                 /* Without this we won't receive key up events */
481                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
482                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
483                 break;
484         case SAA7134_BOARD_AVERMEDIA_A16D:
485                 ir_codes     = &ir_codes_avermedia_a16d_table;
486                 mask_keycode = 0x02F200;
487                 mask_keydown = 0x000400;
488                 polling      = 50; /* ms */
489                 /* Without this we won't receive key up events */
490                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
491                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
492                 break;
493         case SAA7134_BOARD_KWORLD_TERMINATOR:
494                 ir_codes     = &ir_codes_pixelview_table;
495                 mask_keycode = 0x00001f;
496                 mask_keyup   = 0x000060;
497                 polling      = 50; // ms
498                 break;
499         case SAA7134_BOARD_MANLI_MTV001:
500         case SAA7134_BOARD_MANLI_MTV002:
501                 ir_codes     = &ir_codes_manli_table;
502                 mask_keycode = 0x001f00;
503                 mask_keyup   = 0x004000;
504                 polling      = 50; /* ms */
505                 break;
506         case SAA7134_BOARD_BEHOLD_409FM:
507         case SAA7134_BOARD_BEHOLD_401:
508         case SAA7134_BOARD_BEHOLD_403:
509         case SAA7134_BOARD_BEHOLD_403FM:
510         case SAA7134_BOARD_BEHOLD_405:
511         case SAA7134_BOARD_BEHOLD_405FM:
512         case SAA7134_BOARD_BEHOLD_407:
513         case SAA7134_BOARD_BEHOLD_407FM:
514         case SAA7134_BOARD_BEHOLD_409:
515         case SAA7134_BOARD_BEHOLD_505FM:
516         case SAA7134_BOARD_BEHOLD_505RDS:
517         case SAA7134_BOARD_BEHOLD_507_9FM:
518         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
519         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
520                 ir_codes     = &ir_codes_manli_table;
521                 mask_keycode = 0x003f00;
522                 mask_keyup   = 0x004000;
523                 polling      = 50; /* ms */
524                 break;
525         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
526                 ir_codes     = &ir_codes_behold_columbus_table;
527                 mask_keycode = 0x003f00;
528                 mask_keyup   = 0x004000;
529                 polling      = 50; // ms
530                 break;
531         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
532                 ir_codes     = &ir_codes_pctv_sedna_table;
533                 mask_keycode = 0x001f00;
534                 mask_keyup   = 0x004000;
535                 polling      = 50; // ms
536                 break;
537         case SAA7134_BOARD_GOTVIEW_7135:
538                 ir_codes     = &ir_codes_gotview7135_table;
539                 mask_keycode = 0x0003CC;
540                 mask_keydown = 0x000010;
541                 polling      = 5; /* ms */
542                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
543                 break;
544         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
545         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
546         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
547                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
548                 mask_keycode = 0x00003F;
549                 mask_keyup   = 0x400000;
550                 polling      = 50; // ms
551                 break;
552         case SAA7134_BOARD_PROTEUS_2309:
553                 ir_codes     = &ir_codes_proteus_2309_table;
554                 mask_keycode = 0x00007F;
555                 mask_keyup   = 0x000080;
556                 polling      = 50; // ms
557                 break;
558         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
559         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
560                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
561                 mask_keycode = 0x003F00;
562                 mask_keyup   = 0x040000;
563                 break;
564         case SAA7134_BOARD_FLYDVBS_LR300:
565         case SAA7134_BOARD_FLYDVBT_LR301:
566         case SAA7134_BOARD_FLYDVBTDUO:
567                 ir_codes     = &ir_codes_flydvb_table;
568                 mask_keycode = 0x0001F00;
569                 mask_keydown = 0x0040000;
570                 break;
571         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
572         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
573         case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
574                 ir_codes     = &ir_codes_asus_pc39_table;
575                 mask_keydown = 0x0040000;
576                 rc5_gpio = 1;
577                 break;
578         case SAA7134_BOARD_ENCORE_ENLTV:
579         case SAA7134_BOARD_ENCORE_ENLTV_FM:
580                 ir_codes     = &ir_codes_encore_enltv_table;
581                 mask_keycode = 0x00007f;
582                 mask_keyup   = 0x040000;
583                 polling      = 50; // ms
584                 break;
585         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
586                 ir_codes     = &ir_codes_encore_enltv_fm53_table;
587                 mask_keydown = 0x0040000;
588                 mask_keycode = 0x00007f;
589                 nec_gpio = 1;
590                 break;
591         case SAA7134_BOARD_10MOONSTVMASTER3:
592                 ir_codes     = &ir_codes_encore_enltv_table;
593                 mask_keycode = 0x5f80000;
594                 mask_keyup   = 0x8000000;
595                 polling      = 50; //ms
596                 break;
597         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
598                 ir_codes     = &ir_codes_genius_tvgo_a11mce_table;
599                 mask_keycode = 0xff;
600                 mask_keydown = 0xf00000;
601                 polling = 50; /* ms */
602                 break;
603         case SAA7134_BOARD_REAL_ANGEL_220:
604                 ir_codes     = &ir_codes_real_audio_220_32_keys_table;
605                 mask_keycode = 0x3f00;
606                 mask_keyup   = 0x4000;
607                 polling = 50; /* ms */
608                 break;
609         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
610                 ir_codes     = &ir_codes_kworld_plus_tv_analog_table;
611                 mask_keycode = 0x7f;
612                 polling = 40; /* ms */
613                 break;
614         case SAA7134_BOARD_VIDEOMATE_S350:
615                 ir_codes     = &ir_codes_videomate_s350_table;
616                 mask_keycode = 0x003f00;
617                 mask_keydown = 0x040000;
618                 break;
619         case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
620                 ir_codes     = &ir_codes_winfast_table;
621                 mask_keycode = 0x5f00;
622                 mask_keyup   = 0x020000;
623                 polling      = 50; /* ms */
624                 break;
625         }
626         if (NULL == ir_codes) {
627                 printk("%s: Oops: IR config error [card=%d]\n",
628                        dev->name, dev->board);
629                 return -ENODEV;
630         }
631
632         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
633         input_dev = input_allocate_device();
634         if (!ir || !input_dev) {
635                 err = -ENOMEM;
636                 goto err_out_free;
637         }
638
639         ir->dev = input_dev;
640
641         /* init hardware-specific stuff */
642         ir->mask_keycode = mask_keycode;
643         ir->mask_keydown = mask_keydown;
644         ir->mask_keyup   = mask_keyup;
645         ir->polling      = polling;
646         ir->rc5_gpio     = rc5_gpio;
647         ir->nec_gpio     = nec_gpio;
648
649         /* init input device */
650         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
651                  saa7134_boards[dev->board].name);
652         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
653                  pci_name(dev->pci));
654
655         err = ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
656         if (err < 0)
657                 goto err_out_free;
658
659         input_dev->name = ir->name;
660         input_dev->phys = ir->phys;
661         input_dev->id.bustype = BUS_PCI;
662         input_dev->id.version = 1;
663         if (dev->pci->subsystem_vendor) {
664                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
665                 input_dev->id.product = dev->pci->subsystem_device;
666         } else {
667                 input_dev->id.vendor  = dev->pci->vendor;
668                 input_dev->id.product = dev->pci->device;
669         }
670         input_dev->dev.parent = &dev->pci->dev;
671
672         dev->remote = ir;
673         saa7134_ir_start(dev, ir);
674
675         err = input_register_device(ir->dev);
676         if (err)
677                 goto err_out_stop;
678
679         /* the remote isn't as bouncy as a keyboard */
680         ir->dev->rep[REP_DELAY] = repeat_delay;
681         ir->dev->rep[REP_PERIOD] = repeat_period;
682
683         return 0;
684
685  err_out_stop:
686         saa7134_ir_stop(dev);
687         dev->remote = NULL;
688  err_out_free:
689         ir_input_free(input_dev);
690         input_free_device(input_dev);
691         kfree(ir);
692         return err;
693 }
694
695 void saa7134_input_fini(struct saa7134_dev *dev)
696 {
697         if (NULL == dev->remote)
698                 return;
699
700         saa7134_ir_stop(dev);
701         ir_input_free(dev->remote->dev);
702         input_unregister_device(dev->remote->dev);
703         kfree(dev->remote);
704         dev->remote = NULL;
705 }
706
707 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
708 {
709         struct i2c_board_info info;
710
711         struct i2c_msg msg_msi = {
712                 .addr = 0x50,
713                 .flags = I2C_M_RD,
714                 .len = 0,
715                 .buf = NULL,
716         };
717
718         int rc;
719
720         if (disable_ir) {
721                 dprintk("IR has been disabled, not probing for i2c remote\n");
722                 return;
723         }
724
725         memset(&info, 0, sizeof(struct i2c_board_info));
726         memset(&dev->init_data, 0, sizeof(dev->init_data));
727         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
728
729         switch (dev->board) {
730         case SAA7134_BOARD_PINNACLE_PCTV_110i:
731         case SAA7134_BOARD_PINNACLE_PCTV_310i:
732                 dev->init_data.name = "Pinnacle PCTV";
733                 if (pinnacle_remote == 0) {
734                         dev->init_data.get_key = get_key_pinnacle_color;
735                         dev->init_data.ir_codes = &ir_codes_pinnacle_color_table;
736                         info.addr = 0x47;
737                 } else {
738                         dev->init_data.get_key = get_key_pinnacle_grey;
739                         dev->init_data.ir_codes = &ir_codes_pinnacle_grey_table;
740                         info.addr = 0x47;
741                 }
742                 break;
743         case SAA7134_BOARD_UPMOST_PURPLE_TV:
744                 dev->init_data.name = "Purple TV";
745                 dev->init_data.get_key = get_key_purpletv;
746                 dev->init_data.ir_codes = &ir_codes_purpletv_table;
747                 info.addr = 0x7a;
748                 break;
749         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
750                 dev->init_data.name = "MSI TV@nywhere Plus";
751                 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
752                 dev->init_data.ir_codes = &ir_codes_msi_tvanywhere_plus_table;
753                 info.addr = 0x30;
754                 /* MSI TV@nywhere Plus controller doesn't seem to
755                    respond to probes unless we read something from
756                    an existing device. Weird...
757                    REVISIT: might no longer be needed */
758                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
759                 dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
760                         msg_msi.addr, dev->i2c_adap.name,
761                         (1 == rc) ? "yes" : "no");
762                 break;
763         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
764                 dev->init_data.name = "HVR 1110";
765                 dev->init_data.get_key = get_key_hvr1110;
766                 dev->init_data.ir_codes = &ir_codes_hauppauge_new_table;
767                 info.addr = 0x71;
768                 break;
769         case SAA7134_BOARD_BEHOLD_607FM_MK3:
770         case SAA7134_BOARD_BEHOLD_607FM_MK5:
771         case SAA7134_BOARD_BEHOLD_609FM_MK3:
772         case SAA7134_BOARD_BEHOLD_609FM_MK5:
773         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
774         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
775         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
776         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
777         case SAA7134_BOARD_BEHOLD_M6:
778         case SAA7134_BOARD_BEHOLD_M63:
779         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
780         case SAA7134_BOARD_BEHOLD_H6:
781         case SAA7134_BOARD_BEHOLD_X7:
782                 dev->init_data.name = "BeholdTV";
783                 dev->init_data.get_key = get_key_beholdm6xx;
784                 dev->init_data.ir_codes = &ir_codes_behold_table;
785                 info.addr = 0x2d;
786                 break;
787         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
788         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
789                 info.addr = 0x40;
790                 break;
791         default:
792                 dprintk("No I2C IR support for board %x\n", dev->board);
793                 return;
794         }
795
796         if (dev->init_data.name)
797                 info.platform_data = &dev->init_data;
798         i2c_new_device(&dev->i2c_adap, &info);
799 }
800
801 static int saa7134_rc5_irq(struct saa7134_dev *dev)
802 {
803         struct card_ir *ir = dev->remote;
804         struct timeval tv;
805         u32 gap;
806         unsigned long current_jiffies, timeout;
807
808         /* get time of bit */
809         current_jiffies = jiffies;
810         do_gettimeofday(&tv);
811
812         /* avoid overflow with gap >1s */
813         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
814                 gap = 200000;
815         } else {
816                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
817                     tv.tv_usec - ir->base_time.tv_usec;
818         }
819
820         /* active code => add bit */
821         if (ir->active) {
822                 /* only if in the code (otherwise spurious IRQ or timer
823                    late) */
824                 if (ir->last_bit < 28) {
825                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
826                             ir_rc5_remote_gap;
827                         ir->code |= 1 << ir->last_bit;
828                 }
829                 /* starting new code */
830         } else {
831                 ir->active = 1;
832                 ir->code = 0;
833                 ir->base_time = tv;
834                 ir->last_bit = 0;
835
836                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
837                 mod_timer(&ir->timer_end, timeout);
838         }
839
840         return 1;
841 }
842
843
844 /* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
845    The first pulse (start) has 9 + 4.5 ms
846  */
847
848 static void saa7134_nec_timer(unsigned long data)
849 {
850         struct saa7134_dev *dev = (struct saa7134_dev *) data;
851         struct card_ir *ir = dev->remote;
852
853         dprintk("Cancel key repeat\n");
854
855         ir_input_nokey(ir->dev, &ir->ir);
856 }
857
858 static void nec_task(unsigned long data)
859 {
860         struct saa7134_dev *dev = (struct saa7134_dev *) data;
861         struct card_ir *ir;
862         struct timeval tv;
863         int count, pulse, oldpulse, gap;
864         u32 ircode = 0, not_code = 0;
865         int ngap = 0;
866
867         if (!data) {
868                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
869                 /* GPIO will be kept disabled */
870                 return;
871         }
872
873         ir = dev->remote;
874
875         /* rising SAA7134_GPIO_GPRESCAN reads the status */
876         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
877         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
878
879         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
880         pulse = oldpulse;
881
882         do_gettimeofday(&tv);
883         ir->base_time = tv;
884
885         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
886            Unfortunately, using IRQ to decode pulse didn't work, since it uses
887            a pulse train of 38KHz. This means one pulse on each 52 us
888          */
889         do {
890                 /* Wait until the end of pulse/space or 5 ms */
891                 for (count = 0; count < 500; count++)  {
892                         udelay(10);
893                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
894                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
895                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
896                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
897                                 & ir->mask_keydown;
898                         if (pulse != oldpulse)
899                                 break;
900                 }
901
902                 do_gettimeofday(&tv);
903                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
904                                 tv.tv_usec - ir->base_time.tv_usec;
905
906                 if (!pulse) {
907                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
908                            Do something only if bit == 1
909                          */
910                         if (ngap && (gap > 560 + 280)) {
911                                 unsigned int shift = ngap - 1;
912
913                                 /* Address first, then command */
914                                 if (shift < 8) {
915                                         shift += 8;
916                                         ircode |= 1 << shift;
917                                 } else if (shift < 16) {
918                                         not_code |= 1 << shift;
919                                 } else if (shift < 24) {
920                                         shift -= 16;
921                                         ircode |= 1 << shift;
922                                 } else {
923                                         shift -= 24;
924                                         not_code |= 1 << shift;
925                                 }
926                         }
927                         ngap++;
928                 }
929
930
931                 ir->base_time = tv;
932
933                 /* TIMEOUT - Long pulse */
934                 if (gap >= 5000)
935                         break;
936                 oldpulse = pulse;
937         } while (ngap < 32);
938
939         if (ngap == 32) {
940                 /* FIXME: should check if not_code == ~ircode */
941                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
942
943                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
944                          ir->code, ircode, not_code);
945
946                 ir_input_keydown(ir->dev, &ir->ir, ir->code);
947         } else
948                 dprintk("Repeat last key\n");
949
950         /* Keep repeating the last key */
951         mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
952
953         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
954 }
955
956 static int saa7134_nec_irq(struct saa7134_dev *dev)
957 {
958         struct card_ir *ir = dev->remote;
959
960         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
961         tasklet_schedule(&ir->tlet);
962
963         return 1;
964 }