3 * Device driver for GPIO attached remote control interfaces
4 * on Conexant 2388x based TV/DVB cards.
6 * Copyright (c) 2003 Pavel Machek
7 * Copyright (c) 2004 Gerd Knorr
8 * Copyright (c) 2004 Chris Pascoe
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.
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.
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
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>
32 #include <media/ir-common.h>
36 /* ---------------------------------------------------------------------- */
38 /* DigitalNow DNTV Live DVB-T Remote */
39 static IR_KEYTAB_TYPE ir_codes_dntv_live_dvb_t
[IR_KEYTAB_SIZE
] = {
40 [0x00] = KEY_ESC
, /* 'go up a level?' */
53 [0x0b] = KEY_TUNER
, /* tv/fm */
54 [0x0c] = KEY_SEARCH
, /* scan */
57 [0x0f] = KEY_LIST
, /* source */
60 [0x11] = KEY_REWIND
, /* backward << */
62 [0x13] = KEY_S
, /* snap */
63 [0x14] = KEY_AUDIO
, /* stereo */
64 [0x15] = KEY_CLEAR
, /* reset */
67 [0x18] = KEY_ZOOM
, /* full screen */
68 [0x19] = KEY_FASTFORWARD
, /* forward >> */
69 [0x1a] = KEY_CHANNELUP
,
70 [0x1b] = KEY_VOLUMEUP
,
71 [0x1c] = KEY_INFO
, /* preview */
72 [0x1d] = KEY_RECORD
, /* record */
73 [0x1e] = KEY_CHANNELDOWN
,
74 [0x1f] = KEY_VOLUMEDOWN
,
77 /* ---------------------------------------------------------------------- */
79 /* IO-DATA BCTV7E Remote */
80 static IR_KEYTAB_TYPE ir_codes_iodata_bctv7e
[IR_KEYTAB_SIZE
] = {
82 [0x20] = KEY_RADIO
, /* FM */
87 [0x44] = KEY_KP0
, /* 10 */
98 [0x10] = KEY_L
, /* Live */
99 [0x08] = KEY_T
, /* Time Shift */
101 [0x18] = KEY_PLAYPAUSE
, /* Play */
103 [0x24] = KEY_ENTER
, /* 11 */
104 [0x64] = KEY_ESC
, /* 12 */
105 [0x04] = KEY_M
, /* Multi */
108 [0x34] = KEY_CHANNELUP
,
109 [0x74] = KEY_VOLUMEUP
,
112 [0x4c] = KEY_S
, /* SVIDEO */
113 [0x2c] = KEY_CHANNELDOWN
,
114 [0x6c] = KEY_VOLUMEDOWN
,
118 [0x3c] = KEY_C
, /* || (red) */
119 [0x7c] = KEY_RECORD
, /* recording */
122 [0x41] = KEY_REWIND
, /* backward << */
124 [0x61] = KEY_FASTFORWARD
, /* forward >> */
125 [0x01] = KEY_NEXT
, /* skip >| */
128 /* ---------------------------------------------------------------------- */
130 /* ADS Tech Instant TV DVB-T PCI Remote */
131 static IR_KEYTAB_TYPE ir_codes_adstech_dvb_t_pci
[IR_KEYTAB_SIZE
] = {
148 [0x17] = KEY_EPG
, /* Guide */
154 [0x0e] = KEY_SELECT
, /* Enter */
157 [0x59] = KEY_PREVIOUS
,
160 [0x50] = KEY_FORWARD
,
161 [0x44] = KEY_PLAYPAUSE
,
164 [0x13] = KEY_TUNER
, /* Live */
167 [0x03] = KEY_PROG1
, /* 1 */
168 [0x01] = KEY_PROG2
, /* 2 */
169 [0x00] = KEY_PROG3
, /* 3 */
171 [0x48] = KEY_AUX
, /* Photo */
173 [0x19] = KEY_AUDIO
, /* Music */
174 [0x0b] = KEY_CHANNELUP
,
175 [0x08] = KEY_CHANNELDOWN
,
176 [0x15] = KEY_VOLUMEUP
,
177 [0x1c] = KEY_VOLUMEDOWN
,
180 /* ---------------------------------------------------------------------- */
182 /* MSI TV@nywhere remote */
183 static IR_KEYTAB_TYPE ir_codes_msi_tvanywhere
[IR_KEYTAB_SIZE
] = {
197 [0x0f] = KEY_SCREEN
, /* Full Screen */
198 [0x10] = KEY_F
, /* Funtion */
199 [0x11] = KEY_T
, /* Time shift */
201 [0x13] = KEY_MEDIA
, /* MTS */
203 [0x16] = KEY_REWIND
, /* backward << */
204 [0x17] = KEY_ENTER
, /* Return */
205 [0x18] = KEY_FASTFORWARD
, /* forward >> */
206 [0x1a] = KEY_CHANNELUP
,
207 [0x1b] = KEY_VOLUMEUP
,
208 [0x1e] = KEY_CHANNELDOWN
,
209 [0x1f] = KEY_VOLUMEDOWN
,
212 /* ---------------------------------------------------------------------- */
214 /* Cinergy 1400 DVB-T */
215 static IR_KEYTAB_TYPE ir_codes_cinergy_1400
[IR_KEYTAB_SIZE
] = {
229 [0x0d] = KEY_REFRESH
,
245 [0x1b] = KEY_CHANNELUP
,
246 [0x1c] = KEY_VOLUMEUP
,
248 [0x1e] = KEY_VOLUMEDOWN
,
249 [0x1f] = KEY_CHANNELDOWN
,
254 [0x54] = KEY_PREVIOUS
,
259 /* ---------------------------------------------------------------------- */
262 struct cx88_core
*core
;
263 struct input_dev input
;
264 struct ir_input_state ir
;
268 /* sample from gpio pin 16 */
272 unsigned long release
;
274 /* poll external decoder */
276 struct work_struct work
;
277 struct timer_list timer
;
285 static int ir_debug
= 0;
286 module_param(ir_debug
, int, 0644); /* debug level [IR] */
287 MODULE_PARM_DESC(ir_debug
, "enable debug messages [IR]");
289 #define ir_dprintk(fmt, arg...) if (ir_debug) \
290 printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
292 /* ---------------------------------------------------------------------- */
294 static void cx88_ir_handle_key(struct cx88_IR
*ir
)
296 struct cx88_core
*core
= ir
->core
;
299 /* read gpio value */
300 gpio
= cx_read(ir
->gpio_addr
);
302 if (ir
->last_gpio
== gpio
)
304 ir
->last_gpio
= gpio
;
308 data
= ir_extract_bits(gpio
, ir
->mask_keycode
);
309 ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
311 ir
->polling
? "poll" : "irq",
312 (gpio
& ir
->mask_keydown
) ? " down" : "",
313 (gpio
& ir
->mask_keyup
) ? " up" : "");
315 if (ir
->mask_keydown
) {
316 /* bit set on keydown */
317 if (gpio
& ir
->mask_keydown
) {
318 ir_input_keydown(&ir
->input
, &ir
->ir
, data
, data
);
320 ir_input_nokey(&ir
->input
, &ir
->ir
);
323 } else if (ir
->mask_keyup
) {
324 /* bit cleared on keydown */
325 if (0 == (gpio
& ir
->mask_keyup
)) {
326 ir_input_keydown(&ir
->input
, &ir
->ir
, data
, data
);
328 ir_input_nokey(&ir
->input
, &ir
->ir
);
332 /* can't distinguish keydown/up :-/ */
333 ir_input_keydown(&ir
->input
, &ir
->ir
, data
, data
);
334 ir_input_nokey(&ir
->input
, &ir
->ir
);
338 static void ir_timer(unsigned long data
)
340 struct cx88_IR
*ir
= (struct cx88_IR
*)data
;
342 schedule_work(&ir
->work
);
345 static void cx88_ir_work(void *data
)
347 struct cx88_IR
*ir
= data
;
348 unsigned long timeout
;
350 cx88_ir_handle_key(ir
);
351 timeout
= jiffies
+ (ir
->polling
* HZ
/ 1000);
352 mod_timer(&ir
->timer
, timeout
);
355 /* ---------------------------------------------------------------------- */
357 int cx88_ir_init(struct cx88_core
*core
, struct pci_dev
*pci
)
360 IR_KEYTAB_TYPE
*ir_codes
= NULL
;
361 int ir_type
= IR_TYPE_OTHER
;
363 ir
= kmalloc(sizeof(*ir
), GFP_KERNEL
);
366 memset(ir
, 0, sizeof(*ir
));
368 /* detect & configure */
369 switch (core
->board
) {
370 case CX88_BOARD_DNTV_LIVE_DVB_T
:
371 case CX88_BOARD_KWORLD_DVB_T
:
372 ir_codes
= ir_codes_dntv_live_dvb_t
;
373 ir
->gpio_addr
= MO_GP1_IO
;
374 ir
->mask_keycode
= 0x1f;
375 ir
->mask_keyup
= 0x60;
376 ir
->polling
= 50; /* ms */
378 case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1
:
379 ir_codes
= ir_codes_cinergy_1400
;
380 ir_type
= IR_TYPE_PD
;
383 case CX88_BOARD_HAUPPAUGE
:
384 case CX88_BOARD_HAUPPAUGE_DVB_T1
:
385 ir_codes
= ir_codes_hauppauge_new
;
386 ir_type
= IR_TYPE_RC5
;
389 case CX88_BOARD_WINFAST2000XP_EXPERT
:
390 ir_codes
= ir_codes_winfast
;
391 ir
->gpio_addr
= MO_GP0_IO
;
392 ir
->mask_keycode
= 0x8f8;
393 ir
->mask_keyup
= 0x100;
394 ir
->polling
= 1; /* ms */
396 case CX88_BOARD_IODATA_GVBCTV7E
:
397 ir_codes
= ir_codes_iodata_bctv7e
;
398 ir
->gpio_addr
= MO_GP0_IO
;
399 ir
->mask_keycode
= 0xfd;
400 ir
->mask_keydown
= 0x02;
401 ir
->polling
= 5; /* ms */
403 case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO
:
404 ir_codes
= ir_codes_pixelview
;
405 ir
->gpio_addr
= MO_GP1_IO
;
406 ir
->mask_keycode
= 0x1f;
407 ir
->mask_keyup
= 0x80;
408 ir
->polling
= 1; /* ms */
410 case CX88_BOARD_ADSTECH_DVB_T_PCI
:
411 ir_codes
= ir_codes_adstech_dvb_t_pci
;
412 ir
->gpio_addr
= MO_GP1_IO
;
413 ir
->mask_keycode
= 0xbf;
414 ir
->mask_keyup
= 0x40;
415 ir
->polling
= 50; /* ms */
417 case CX88_BOARD_MSI_TVANYWHERE_MASTER
:
418 ir_codes
= ir_codes_msi_tvanywhere
;
419 ir
->gpio_addr
= MO_GP1_IO
;
420 ir
->mask_keycode
= 0x1f;
421 ir
->mask_keyup
= 0x40;
422 ir
->polling
= 1; /* ms */
426 if (NULL
== ir_codes
) {
431 /* init input device */
432 snprintf(ir
->name
, sizeof(ir
->name
), "cx88 IR (%s)",
433 cx88_boards
[core
->board
].name
);
434 snprintf(ir
->phys
, sizeof(ir
->phys
), "pci-%s/ir0", pci_name(pci
));
436 ir_input_init(&ir
->input
, &ir
->ir
, ir_type
, ir_codes
);
437 ir
->input
.name
= ir
->name
;
438 ir
->input
.phys
= ir
->phys
;
439 ir
->input
.id
.bustype
= BUS_PCI
;
440 ir
->input
.id
.version
= 1;
441 if (pci
->subsystem_vendor
) {
442 ir
->input
.id
.vendor
= pci
->subsystem_vendor
;
443 ir
->input
.id
.product
= pci
->subsystem_device
;
445 ir
->input
.id
.vendor
= pci
->vendor
;
446 ir
->input
.id
.product
= pci
->device
;
448 ir
->input
.dev
= &pci
->dev
;
450 /* record handles to ourself */
455 INIT_WORK(&ir
->work
, cx88_ir_work
, ir
);
456 init_timer(&ir
->timer
);
457 ir
->timer
.function
= ir_timer
;
458 ir
->timer
.data
= (unsigned long)ir
;
459 schedule_work(&ir
->work
);
462 core
->pci_irqmask
|= (1 << 18); /* IR_SMP_INT */
463 cx_write(MO_DDS_IO
, 0xa80a80); /* 4 kHz sample rate */
464 cx_write(MO_DDSCFG_IO
, 0x5); /* enable */
468 input_register_device(&ir
->input
);
469 printk("%s: registered IR remote control\n", core
->name
);
474 int cx88_ir_fini(struct cx88_core
*core
)
476 struct cx88_IR
*ir
= core
->ir
;
478 /* skip detach on non attached boards */
483 del_timer(&ir
->timer
);
484 flush_scheduled_work();
487 input_unregister_device(&ir
->input
);
495 /* ---------------------------------------------------------------------- */
497 void cx88_ir_irq(struct cx88_core
*core
)
499 struct cx88_IR
*ir
= core
->ir
;
508 samples
= cx_read(MO_SAMPLE_IO
);
509 if (0 != samples
&& 0xffffffff != samples
) {
510 /* record sample data */
511 if (ir
->scount
< ARRAY_SIZE(ir
->samples
))
512 ir
->samples
[ir
->scount
++] = samples
;
516 /* nothing to sample */
517 if (ir
->ir
.keypressed
&& time_after(jiffies
, ir
->release
))
518 ir_input_nokey(&ir
->input
, &ir
->ir
);
522 /* have a complete sample */
523 if (ir
->scount
< ARRAY_SIZE(ir
->samples
))
524 ir
->samples
[ir
->scount
++] = samples
;
525 for (i
= 0; i
< ir
->scount
; i
++)
526 ir
->samples
[i
] = ~ir
->samples
[i
];
528 ir_dump_samples(ir
->samples
, ir
->scount
);
531 switch (core
->board
) {
532 case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1
:
533 ircode
= ir_decode_pulsedistance(ir
->samples
, ir
->scount
, 1, 4);
535 if (ircode
== 0xffffffff) { /* decoding error */
536 ir_dprintk("pulse distance decoding error\n");
540 ir_dprintk("pulse distance decoded: %x\n", ircode
);
542 if (ircode
== 0) { /* key still pressed */
543 ir_dprintk("pulse distance decoded repeat code\n");
544 ir
->release
= jiffies
+ msecs_to_jiffies(120);
548 if ((ircode
& 0xffff) != 0xeb04) { /* wrong address */
549 ir_dprintk("pulse distance decoded wrong address\n");
553 if (((~ircode
>> 24) & 0xff) != ((ircode
>> 16) & 0xff)) { /* wrong checksum */
554 ir_dprintk("pulse distance decoded wrong check sum\n");
558 ir_dprintk("Key Code: %x\n", (ircode
>> 16) & 0x7f);
560 ir_input_keydown(&ir
->input
, &ir
->ir
, (ircode
>> 16) & 0x7f, (ircode
>> 16) & 0xff);
561 ir
->release
= jiffies
+ msecs_to_jiffies(120);
563 case CX88_BOARD_HAUPPAUGE
:
564 case CX88_BOARD_HAUPPAUGE_DVB_T1
:
565 ircode
= ir_decode_biphase(ir
->samples
, ir
->scount
, 5, 7);
566 ir_dprintk("biphase decoded: %x\n", ircode
);
567 if ((ircode
& 0xfffff000) != 0x3000)
569 ir_input_keydown(&ir
->input
, &ir
->ir
, ircode
& 0x3f, ircode
);
570 ir
->release
= jiffies
+ msecs_to_jiffies(120);
578 /* ---------------------------------------------------------------------- */
580 MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
581 MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
582 MODULE_LICENSE("GPL");