Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6
[linux-2.6] / drivers / media / video / cx88 / cx88-input.c
1 /*
2  *
3  * Device driver for GPIO attached remote control interfaces
4  * on Conexant 2388x based TV/DVB cards.
5  *
6  * Copyright (c) 2003 Pavel Machek
7  * Copyright (c) 2004 Gerd Knorr
8  * Copyright (c) 2004, 2005 Chris Pascoe
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23  */
24
25 #include <linux/init.h>
26 #include <linux/delay.h>
27 #include <linux/input.h>
28 #include <linux/pci.h>
29 #include <linux/module.h>
30 #include <linux/moduleparam.h>
31
32 #include "cx88.h"
33 #include <media/ir-common.h>
34
35 /* ---------------------------------------------------------------------- */
36
37 /* DigitalNow DNTV Live DVB-T Remote */
38 static IR_KEYTAB_TYPE ir_codes_dntv_live_dvb_t[IR_KEYTAB_SIZE] = {
39         [0x00] = KEY_ESC,               /* 'go up a level?' */
40         /* Keys 0 to 9 */
41         [0x0a] = KEY_KP0,
42         [0x01] = KEY_KP1,
43         [0x02] = KEY_KP2,
44         [0x03] = KEY_KP3,
45         [0x04] = KEY_KP4,
46         [0x05] = KEY_KP5,
47         [0x06] = KEY_KP6,
48         [0x07] = KEY_KP7,
49         [0x08] = KEY_KP8,
50         [0x09] = KEY_KP9,
51
52         [0x0b] = KEY_TUNER,             /* tv/fm */
53         [0x0c] = KEY_SEARCH,            /* scan */
54         [0x0d] = KEY_STOP,
55         [0x0e] = KEY_PAUSE,
56         [0x0f] = KEY_LIST,              /* source */
57
58         [0x10] = KEY_MUTE,
59         [0x11] = KEY_REWIND,            /* backward << */
60         [0x12] = KEY_POWER,
61         [0x13] = KEY_S,                 /* snap */
62         [0x14] = KEY_AUDIO,             /* stereo */
63         [0x15] = KEY_CLEAR,             /* reset */
64         [0x16] = KEY_PLAY,
65         [0x17] = KEY_ENTER,
66         [0x18] = KEY_ZOOM,              /* full screen */
67         [0x19] = KEY_FASTFORWARD,       /* forward >> */
68         [0x1a] = KEY_CHANNELUP,
69         [0x1b] = KEY_VOLUMEUP,
70         [0x1c] = KEY_INFO,              /* preview */
71         [0x1d] = KEY_RECORD,            /* record */
72         [0x1e] = KEY_CHANNELDOWN,
73         [0x1f] = KEY_VOLUMEDOWN,
74 };
75
76 /* ---------------------------------------------------------------------- */
77
78 /* IO-DATA BCTV7E Remote */
79 static IR_KEYTAB_TYPE ir_codes_iodata_bctv7e[IR_KEYTAB_SIZE] = {
80         [0x40] = KEY_TV,
81         [0x20] = KEY_RADIO,             /* FM */
82         [0x60] = KEY_EPG,
83         [0x00] = KEY_POWER,
84
85         /* Keys 0 to 9 */
86         [0x44] = KEY_KP0,               /* 10 */
87         [0x50] = KEY_KP1,
88         [0x30] = KEY_KP2,
89         [0x70] = KEY_KP3,
90         [0x48] = KEY_KP4,
91         [0x28] = KEY_KP5,
92         [0x68] = KEY_KP6,
93         [0x58] = KEY_KP7,
94         [0x38] = KEY_KP8,
95         [0x78] = KEY_KP9,
96
97         [0x10] = KEY_L,                 /* Live */
98         [0x08] = KEY_T,                 /* Time Shift */
99
100         [0x18] = KEY_PLAYPAUSE,         /* Play */
101
102         [0x24] = KEY_ENTER,             /* 11 */
103         [0x64] = KEY_ESC,               /* 12 */
104         [0x04] = KEY_M,                 /* Multi */
105
106         [0x54] = KEY_VIDEO,
107         [0x34] = KEY_CHANNELUP,
108         [0x74] = KEY_VOLUMEUP,
109         [0x14] = KEY_MUTE,
110
111         [0x4c] = KEY_S,                 /* SVIDEO */
112         [0x2c] = KEY_CHANNELDOWN,
113         [0x6c] = KEY_VOLUMEDOWN,
114         [0x0c] = KEY_ZOOM,
115
116         [0x5c] = KEY_PAUSE,
117         [0x3c] = KEY_C,                 /* || (red) */
118         [0x7c] = KEY_RECORD,            /* recording */
119         [0x1c] = KEY_STOP,
120
121         [0x41] = KEY_REWIND,            /* backward << */
122         [0x21] = KEY_PLAY,
123         [0x61] = KEY_FASTFORWARD,       /* forward >> */
124         [0x01] = KEY_NEXT,              /* skip >| */
125 };
126
127 /* ---------------------------------------------------------------------- */
128
129 /* ADS Tech Instant TV DVB-T PCI Remote */
130 static IR_KEYTAB_TYPE ir_codes_adstech_dvb_t_pci[IR_KEYTAB_SIZE] = {
131         /* Keys 0 to 9 */
132         [0x4d] = KEY_0,
133         [0x57] = KEY_1,
134         [0x4f] = KEY_2,
135         [0x53] = KEY_3,
136         [0x56] = KEY_4,
137         [0x4e] = KEY_5,
138         [0x5e] = KEY_6,
139         [0x54] = KEY_7,
140         [0x4c] = KEY_8,
141         [0x5c] = KEY_9,
142
143         [0x5b] = KEY_POWER,
144         [0x5f] = KEY_MUTE,
145         [0x55] = KEY_GOTO,
146         [0x5d] = KEY_SEARCH,
147         [0x17] = KEY_EPG,               /* Guide */
148         [0x1f] = KEY_MENU,
149         [0x0f] = KEY_UP,
150         [0x46] = KEY_DOWN,
151         [0x16] = KEY_LEFT,
152         [0x1e] = KEY_RIGHT,
153         [0x0e] = KEY_SELECT,            /* Enter */
154         [0x5a] = KEY_INFO,
155         [0x52] = KEY_EXIT,
156         [0x59] = KEY_PREVIOUS,
157         [0x51] = KEY_NEXT,
158         [0x58] = KEY_REWIND,
159         [0x50] = KEY_FORWARD,
160         [0x44] = KEY_PLAYPAUSE,
161         [0x07] = KEY_STOP,
162         [0x1b] = KEY_RECORD,
163         [0x13] = KEY_TUNER,             /* Live */
164         [0x0a] = KEY_A,
165         [0x12] = KEY_B,
166         [0x03] = KEY_PROG1,             /* 1 */
167         [0x01] = KEY_PROG2,             /* 2 */
168         [0x00] = KEY_PROG3,             /* 3 */
169         [0x06] = KEY_DVD,
170         [0x48] = KEY_AUX,               /* Photo */
171         [0x40] = KEY_VIDEO,
172         [0x19] = KEY_AUDIO,             /* Music */
173         [0x0b] = KEY_CHANNELUP,
174         [0x08] = KEY_CHANNELDOWN,
175         [0x15] = KEY_VOLUMEUP,
176         [0x1c] = KEY_VOLUMEDOWN,
177 };
178
179 /* ---------------------------------------------------------------------- */
180
181 /* MSI TV@nywhere remote */
182 static IR_KEYTAB_TYPE ir_codes_msi_tvanywhere[IR_KEYTAB_SIZE] = {
183         /* Keys 0 to 9 */
184         [0x00] = KEY_0,
185         [0x01] = KEY_1,
186         [0x02] = KEY_2,
187         [0x03] = KEY_3,
188         [0x04] = KEY_4,
189         [0x05] = KEY_5,
190         [0x06] = KEY_6,
191         [0x07] = KEY_7,
192         [0x08] = KEY_8,
193         [0x09] = KEY_9,
194
195         [0x0c] = KEY_MUTE,
196         [0x0f] = KEY_SCREEN,            /* Full Screen */
197         [0x10] = KEY_F,                 /* Funtion */
198         [0x11] = KEY_T,                 /* Time shift */
199         [0x12] = KEY_POWER,
200         [0x13] = KEY_MEDIA,             /* MTS */
201         [0x14] = KEY_SLOW,
202         [0x16] = KEY_REWIND,            /* backward << */
203         [0x17] = KEY_ENTER,             /* Return */
204         [0x18] = KEY_FASTFORWARD,       /* forward >> */
205         [0x1a] = KEY_CHANNELUP,
206         [0x1b] = KEY_VOLUMEUP,
207         [0x1e] = KEY_CHANNELDOWN,
208         [0x1f] = KEY_VOLUMEDOWN,
209 };
210
211 /* ---------------------------------------------------------------------- */
212
213 /* Cinergy 1400 DVB-T */
214 static IR_KEYTAB_TYPE ir_codes_cinergy_1400[IR_KEYTAB_SIZE] = {
215         [0x01] = KEY_POWER,
216         [0x02] = KEY_1,
217         [0x03] = KEY_2,
218         [0x04] = KEY_3,
219         [0x05] = KEY_4,
220         [0x06] = KEY_5,
221         [0x07] = KEY_6,
222         [0x08] = KEY_7,
223         [0x09] = KEY_8,
224         [0x0a] = KEY_9,
225         [0x0c] = KEY_0,
226
227         [0x0b] = KEY_VIDEO,
228         [0x0d] = KEY_REFRESH,
229         [0x0e] = KEY_SELECT,
230         [0x0f] = KEY_EPG,
231         [0x10] = KEY_UP,
232         [0x11] = KEY_LEFT,
233         [0x12] = KEY_OK,
234         [0x13] = KEY_RIGHT,
235         [0x14] = KEY_DOWN,
236         [0x15] = KEY_TEXT,
237         [0x16] = KEY_INFO,
238
239         [0x17] = KEY_RED,
240         [0x18] = KEY_GREEN,
241         [0x19] = KEY_YELLOW,
242         [0x1a] = KEY_BLUE,
243
244         [0x1b] = KEY_CHANNELUP,
245         [0x1c] = KEY_VOLUMEUP,
246         [0x1d] = KEY_MUTE,
247         [0x1e] = KEY_VOLUMEDOWN,
248         [0x1f] = KEY_CHANNELDOWN,
249
250         [0x40] = KEY_PAUSE,
251         [0x4c] = KEY_PLAY,
252         [0x58] = KEY_RECORD,
253         [0x54] = KEY_PREVIOUS,
254         [0x48] = KEY_STOP,
255         [0x5c] = KEY_NEXT,
256 };
257
258 /* ---------------------------------------------------------------------- */
259
260 /* AVERTV STUDIO 303 Remote */
261 static IR_KEYTAB_TYPE ir_codes_avertv_303[IR_KEYTAB_SIZE] = {
262         [ 0x2a ] = KEY_KP1,
263         [ 0x32 ] = KEY_KP2,
264         [ 0x3a ] = KEY_KP3,
265         [ 0x4a ] = KEY_KP4,
266         [ 0x52 ] = KEY_KP5,
267         [ 0x5a ] = KEY_KP6,
268         [ 0x6a ] = KEY_KP7,
269         [ 0x72 ] = KEY_KP8,
270         [ 0x7a ] = KEY_KP9,
271         [ 0x0e ] = KEY_KP0,
272
273         [ 0x02 ] = KEY_POWER,
274         [ 0x22 ] = KEY_VIDEO,
275         [ 0x42 ] = KEY_AUDIO,
276         [ 0x62 ] = KEY_ZOOM,
277         [ 0x0a ] = KEY_TV,
278         [ 0x12 ] = KEY_CD,
279         [ 0x1a ] = KEY_TEXT,
280
281         [ 0x16 ] = KEY_SUBTITLE,
282         [ 0x1e ] = KEY_REWIND,
283         [ 0x06 ] = KEY_PRINT,
284
285         [ 0x2e ] = KEY_SEARCH,
286         [ 0x36 ] = KEY_SLEEP,
287         [ 0x3e ] = KEY_SHUFFLE,
288         [ 0x26 ] = KEY_MUTE,
289
290         [ 0x4e ] = KEY_RECORD,
291         [ 0x56 ] = KEY_PAUSE,
292         [ 0x5e ] = KEY_STOP,
293         [ 0x46 ] = KEY_PLAY,
294
295         [ 0x6e ] = KEY_RED,
296         [ 0x0b ] = KEY_GREEN,
297         [ 0x66 ] = KEY_YELLOW,
298         [ 0x03 ] = KEY_BLUE,
299
300         [ 0x76 ] = KEY_LEFT,
301         [ 0x7e ] = KEY_RIGHT,
302         [ 0x13 ] = KEY_DOWN,
303         [ 0x1b ] = KEY_UP,
304 };
305
306 /* ---------------------------------------------------------------------- */
307
308 /* DigitalNow DNTV Live! DVB-T Pro Remote */
309 static IR_KEYTAB_TYPE ir_codes_dntv_live_dvbt_pro[IR_KEYTAB_SIZE] = {
310         [ 0x16 ] = KEY_POWER,
311         [ 0x5b ] = KEY_HOME,
312
313         [ 0x55 ] = KEY_TV,              /* live tv */
314         [ 0x58 ] = KEY_TUNER,           /* digital Radio */
315         [ 0x5a ] = KEY_RADIO,           /* FM radio */
316         [ 0x59 ] = KEY_DVD,             /* dvd menu */
317         [ 0x03 ] = KEY_1,
318         [ 0x01 ] = KEY_2,
319         [ 0x06 ] = KEY_3,
320         [ 0x09 ] = KEY_4,
321         [ 0x1d ] = KEY_5,
322         [ 0x1f ] = KEY_6,
323         [ 0x0d ] = KEY_7,
324         [ 0x19 ] = KEY_8,
325         [ 0x1b ] = KEY_9,
326         [ 0x0c ] = KEY_CANCEL,
327         [ 0x15 ] = KEY_0,
328         [ 0x4a ] = KEY_CLEAR,
329         [ 0x13 ] = KEY_BACK,
330         [ 0x00 ] = KEY_TAB,
331         [ 0x4b ] = KEY_UP,
332         [ 0x4e ] = KEY_LEFT,
333         [ 0x4f ] = KEY_OK,
334         [ 0x52 ] = KEY_RIGHT,
335         [ 0x51 ] = KEY_DOWN,
336         [ 0x1e ] = KEY_VOLUMEUP,
337         [ 0x0a ] = KEY_VOLUMEDOWN,
338         [ 0x02 ] = KEY_CHANNELDOWN,
339         [ 0x05 ] = KEY_CHANNELUP,
340         [ 0x11 ] = KEY_RECORD,
341         [ 0x14 ] = KEY_PLAY,
342         [ 0x4c ] = KEY_PAUSE,
343         [ 0x1a ] = KEY_STOP,
344         [ 0x40 ] = KEY_REWIND,
345         [ 0x12 ] = KEY_FASTFORWARD,
346         [ 0x41 ] = KEY_PREVIOUSSONG,    /* replay |< */
347         [ 0x42 ] = KEY_NEXTSONG,        /* skip >| */
348         [ 0x54 ] = KEY_CAMERA,          /* capture */
349         [ 0x50 ] = KEY_LANGUAGE,        /* sap */
350         [ 0x47 ] = KEY_TV2,             /* pip */
351         [ 0x4d ] = KEY_SCREEN,
352         [ 0x43 ] = KEY_SUBTITLE,
353         [ 0x10 ] = KEY_MUTE,
354         [ 0x49 ] = KEY_AUDIO,           /* l/r */
355         [ 0x07 ] = KEY_SLEEP,
356         [ 0x08 ] = KEY_VIDEO,           /* a/v */
357         [ 0x0e ] = KEY_PREVIOUS,        /* recall */
358         [ 0x45 ] = KEY_ZOOM,            /* zoom + */
359         [ 0x46 ] = KEY_ANGLE,           /* zoom - */
360         [ 0x56 ] = KEY_RED,
361         [ 0x57 ] = KEY_GREEN,
362         [ 0x5c ] = KEY_YELLOW,
363         [ 0x5d ] = KEY_BLUE,
364 };
365
366 /* ---------------------------------------------------------------------- */
367
368 struct cx88_IR {
369         struct cx88_core *core;
370         struct input_dev *input;
371         struct ir_input_state ir;
372         char name[32];
373         char phys[32];
374
375         /* sample from gpio pin 16 */
376         u32 sampling;
377         u32 samples[16];
378         int scount;
379         unsigned long release;
380
381         /* poll external decoder */
382         int polling;
383         struct work_struct work;
384         struct timer_list timer;
385         u32 gpio_addr;
386         u32 last_gpio;
387         u32 mask_keycode;
388         u32 mask_keydown;
389         u32 mask_keyup;
390 };
391
392 static int ir_debug = 0;
393 module_param(ir_debug, int, 0644);      /* debug level [IR] */
394 MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
395
396 #define ir_dprintk(fmt, arg...) if (ir_debug) \
397         printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
398
399 /* ---------------------------------------------------------------------- */
400
401 static void cx88_ir_handle_key(struct cx88_IR *ir)
402 {
403         struct cx88_core *core = ir->core;
404         u32 gpio, data;
405
406         /* read gpio value */
407         gpio = cx_read(ir->gpio_addr);
408         if (ir->polling) {
409                 if (ir->last_gpio == gpio)
410                         return;
411                 ir->last_gpio = gpio;
412         }
413
414         /* extract data */
415         data = ir_extract_bits(gpio, ir->mask_keycode);
416         ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
417                    gpio, data,
418                    ir->polling ? "poll" : "irq",
419                    (gpio & ir->mask_keydown) ? " down" : "",
420                    (gpio & ir->mask_keyup) ? " up" : "");
421
422         if (ir->mask_keydown) {
423                 /* bit set on keydown */
424                 if (gpio & ir->mask_keydown) {
425                         ir_input_keydown(ir->input, &ir->ir, data, data);
426                 } else {
427                         ir_input_nokey(ir->input, &ir->ir);
428                 }
429
430         } else if (ir->mask_keyup) {
431                 /* bit cleared on keydown */
432                 if (0 == (gpio & ir->mask_keyup)) {
433                         ir_input_keydown(ir->input, &ir->ir, data, data);
434                 } else {
435                         ir_input_nokey(ir->input, &ir->ir);
436                 }
437
438         } else {
439                 /* can't distinguish keydown/up :-/ */
440                 ir_input_keydown(ir->input, &ir->ir, data, data);
441                 ir_input_nokey(ir->input, &ir->ir);
442         }
443 }
444
445 static void ir_timer(unsigned long data)
446 {
447         struct cx88_IR *ir = (struct cx88_IR *)data;
448
449         schedule_work(&ir->work);
450 }
451
452 static void cx88_ir_work(void *data)
453 {
454         struct cx88_IR *ir = data;
455         unsigned long timeout;
456
457         cx88_ir_handle_key(ir);
458         timeout = jiffies + (ir->polling * HZ / 1000);
459         mod_timer(&ir->timer, timeout);
460 }
461
462 /* ---------------------------------------------------------------------- */
463
464 int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
465 {
466         struct cx88_IR *ir;
467         struct input_dev *input_dev;
468         IR_KEYTAB_TYPE *ir_codes = NULL;
469         int ir_type = IR_TYPE_OTHER;
470
471         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
472         input_dev = input_allocate_device();
473         if (!ir || !input_dev) {
474                 kfree(ir);
475                 input_free_device(input_dev);
476                 return -ENOMEM;
477         }
478
479         ir->input = input_dev;
480
481         /* detect & configure */
482         switch (core->board) {
483         case CX88_BOARD_DNTV_LIVE_DVB_T:
484         case CX88_BOARD_KWORLD_DVB_T:
485         case CX88_BOARD_KWORLD_DVB_T_CX22702:
486                 ir_codes = ir_codes_dntv_live_dvb_t;
487                 ir->gpio_addr = MO_GP1_IO;
488                 ir->mask_keycode = 0x1f;
489                 ir->mask_keyup = 0x60;
490                 ir->polling = 50; /* ms */
491                 break;
492         case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
493                 ir_codes = ir_codes_cinergy_1400;
494                 ir_type = IR_TYPE_PD;
495                 ir->sampling = 0xeb04; /* address */
496                 break;
497         case CX88_BOARD_HAUPPAUGE:
498         case CX88_BOARD_HAUPPAUGE_DVB_T1:
499         case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
500         case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
501         case CX88_BOARD_HAUPPAUGE_HVR1100:
502                 ir_codes = ir_codes_hauppauge_new;
503                 ir_type = IR_TYPE_RC5;
504                 ir->sampling = 1;
505                 break;
506         case CX88_BOARD_WINFAST2000XP_EXPERT:
507                 ir_codes = ir_codes_winfast;
508                 ir->gpio_addr = MO_GP0_IO;
509                 ir->mask_keycode = 0x8f8;
510                 ir->mask_keyup = 0x100;
511                 ir->polling = 1; /* ms */
512                 break;
513         case CX88_BOARD_IODATA_GVBCTV7E:
514                 ir_codes = ir_codes_iodata_bctv7e;
515                 ir->gpio_addr = MO_GP0_IO;
516                 ir->mask_keycode = 0xfd;
517                 ir->mask_keydown = 0x02;
518                 ir->polling = 5; /* ms */
519                 break;
520         case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
521                 ir_codes = ir_codes_pixelview;
522                 ir->gpio_addr = MO_GP1_IO;
523                 ir->mask_keycode = 0x1f;
524                 ir->mask_keyup = 0x80;
525                 ir->polling = 1; /* ms */
526                 break;
527         case CX88_BOARD_ADSTECH_DVB_T_PCI:
528                 ir_codes = ir_codes_adstech_dvb_t_pci;
529                 ir->gpio_addr = MO_GP1_IO;
530                 ir->mask_keycode = 0xbf;
531                 ir->mask_keyup = 0x40;
532                 ir->polling = 50; /* ms */
533                 break;
534         case CX88_BOARD_MSI_TVANYWHERE_MASTER:
535                 ir_codes = ir_codes_msi_tvanywhere;
536                 ir->gpio_addr = MO_GP1_IO;
537                 ir->mask_keycode = 0x1f;
538                 ir->mask_keyup = 0x40;
539                 ir->polling = 1; /* ms */
540                 break;
541         case CX88_BOARD_AVERTV_303:
542         case CX88_BOARD_AVERTV_STUDIO_303:
543                 ir_codes         = ir_codes_avertv_303;
544                 ir->gpio_addr    = MO_GP2_IO;
545                 ir->mask_keycode = 0xfb;
546                 ir->mask_keydown = 0x02;
547                 ir->polling      = 50; /* ms */
548                 break;
549         case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
550                 ir_codes = ir_codes_dntv_live_dvbt_pro;
551                 ir_type = IR_TYPE_PD;
552                 ir->sampling = 0xff00; /* address */
553                 break;
554         }
555
556         if (NULL == ir_codes) {
557                 kfree(ir);
558                 input_free_device(input_dev);
559                 return -ENODEV;
560         }
561
562         /* init input device */
563         snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)",
564                  cx88_boards[core->board].name);
565         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
566
567         ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
568         input_dev->name = ir->name;
569         input_dev->phys = ir->phys;
570         input_dev->id.bustype = BUS_PCI;
571         input_dev->id.version = 1;
572         if (pci->subsystem_vendor) {
573                 input_dev->id.vendor = pci->subsystem_vendor;
574                 input_dev->id.product = pci->subsystem_device;
575         } else {
576                 input_dev->id.vendor = pci->vendor;
577                 input_dev->id.product = pci->device;
578         }
579         input_dev->cdev.dev = &pci->dev;
580         /* record handles to ourself */
581         ir->core = core;
582         core->ir = ir;
583
584         if (ir->polling) {
585                 INIT_WORK(&ir->work, cx88_ir_work, ir);
586                 init_timer(&ir->timer);
587                 ir->timer.function = ir_timer;
588                 ir->timer.data = (unsigned long)ir;
589                 schedule_work(&ir->work);
590         }
591         if (ir->sampling) {
592                 core->pci_irqmask |= (1 << 18); /* IR_SMP_INT */
593                 cx_write(MO_DDS_IO, 0xa80a80);  /* 4 kHz sample rate */
594                 cx_write(MO_DDSCFG_IO, 0x5);    /* enable */
595         }
596
597         /* all done */
598         input_register_device(ir->input);
599
600         return 0;
601 }
602
603 int cx88_ir_fini(struct cx88_core *core)
604 {
605         struct cx88_IR *ir = core->ir;
606
607         /* skip detach on non attached boards */
608         if (NULL == ir)
609                 return 0;
610
611         if (ir->sampling) {
612                 cx_write(MO_DDSCFG_IO, 0x0);
613                 core->pci_irqmask &= ~(1 << 18);
614         }
615         if (ir->polling) {
616                 del_timer(&ir->timer);
617                 flush_scheduled_work();
618         }
619
620         input_unregister_device(ir->input);
621         kfree(ir);
622
623         /* done */
624         core->ir = NULL;
625         return 0;
626 }
627
628 /* ---------------------------------------------------------------------- */
629
630 void cx88_ir_irq(struct cx88_core *core)
631 {
632         struct cx88_IR *ir = core->ir;
633         u32 samples, ircode;
634         int i;
635
636         if (NULL == ir)
637                 return;
638         if (!ir->sampling)
639                 return;
640
641         samples = cx_read(MO_SAMPLE_IO);
642         if (0 != samples && 0xffffffff != samples) {
643                 /* record sample data */
644                 if (ir->scount < ARRAY_SIZE(ir->samples))
645                         ir->samples[ir->scount++] = samples;
646                 return;
647         }
648         if (!ir->scount) {
649                 /* nothing to sample */
650                 if (ir->ir.keypressed && time_after(jiffies, ir->release))
651                         ir_input_nokey(ir->input, &ir->ir);
652                 return;
653         }
654
655         /* have a complete sample */
656         if (ir->scount < ARRAY_SIZE(ir->samples))
657                 ir->samples[ir->scount++] = samples;
658         for (i = 0; i < ir->scount; i++)
659                 ir->samples[i] = ~ir->samples[i];
660         if (ir_debug)
661                 ir_dump_samples(ir->samples, ir->scount);
662
663         /* decode it */
664         switch (core->board) {
665         case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
666         case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
667                 ircode = ir_decode_pulsedistance(ir->samples, ir->scount, 1, 4);
668
669                 if (ircode == 0xffffffff) { /* decoding error */
670                         ir_dprintk("pulse distance decoding error\n");
671                         break;
672                 }
673
674                 ir_dprintk("pulse distance decoded: %x\n", ircode);
675
676                 if (ircode == 0) { /* key still pressed */
677                         ir_dprintk("pulse distance decoded repeat code\n");
678                         ir->release = jiffies + msecs_to_jiffies(120);
679                         break;
680                 }
681
682                 if ((ircode & 0xffff) != (ir->sampling & 0xffff)) { /* wrong address */
683                         ir_dprintk("pulse distance decoded wrong address\n");
684                         break;
685                 }
686
687                 if (((~ircode >> 24) & 0xff) != ((ircode >> 16) & 0xff)) { /* wrong checksum */
688                         ir_dprintk("pulse distance decoded wrong check sum\n");
689                         break;
690                 }
691
692                 ir_dprintk("Key Code: %x\n", (ircode >> 16) & 0x7f);
693
694                 ir_input_keydown(ir->input, &ir->ir, (ircode >> 16) & 0x7f, (ircode >> 16) & 0xff);
695                 ir->release = jiffies + msecs_to_jiffies(120);
696                 break;
697         case CX88_BOARD_HAUPPAUGE:
698         case CX88_BOARD_HAUPPAUGE_DVB_T1:
699         case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
700         case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
701         case CX88_BOARD_HAUPPAUGE_HVR1100:
702                 ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
703                 ir_dprintk("biphase decoded: %x\n", ircode);
704                 if ((ircode & 0xfffff000) != 0x3000)
705                         break;
706                 ir_input_keydown(ir->input, &ir->ir, ircode & 0x3f, ircode);
707                 ir->release = jiffies + msecs_to_jiffies(120);
708                 break;
709         }
710
711         ir->scount = 0;
712         return;
713 }
714
715 /* ---------------------------------------------------------------------- */
716
717 MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
718 MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
719 MODULE_LICENSE("GPL");
720 /*
721  * Local variables:
722  * c-basic-offset: 8
723  * End:
724  */