saa7134-input.c

底层驱动开发

/*
 *
 * handle saa7134 IR remotes via linux kernel input layer.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/input.h>

#include "saa7134-reg.h"
#include "saa7134.h"

static unsigned int disable_ir = 0;
module_param(disable_ir, int, 0444);
MODULE_PARM_DESC(disable_ir,"disable infrared remote support");

static unsigned int ir_debug = 0;
module_param(ir_debug, int, 0644);
MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");

#define dprintk(fmt, arg...)	if (ir_debug) \
	printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)

/* ---------------------------------------------------------------------- */

static IR_KEYTAB_TYPE flyvideo_codes[IR_KEYTAB_SIZE] = {
	[   15 ] = KEY_KP0,
	[    3 ] = KEY_KP1,
	[    4 ] = KEY_KP2,
	[    5 ] = KEY_KP3,
	[    7 ] = KEY_KP4,
	[    8 ] = KEY_KP5,
	[    9 ] = KEY_KP6,
	[   11 ] = KEY_KP7,
	[   12 ] = KEY_KP8,
	[   13 ] = KEY_KP9,

	[   14 ] = KEY_TUNER,        // Air/Cable
	[   17 ] = KEY_VIDEO,        // Video
	[   21 ] = KEY_AUDIO,        // Audio
	[    0 ] = KEY_POWER,        // Pover
	[    2 ] = KEY_ZOOM,         // Fullscreen
	[   27 ] = KEY_MUTE,         // Mute
	[   20 ] = KEY_VOLUMEUP,
	[   23 ] = KEY_VOLUMEDOWN,
	[   18 ] = KEY_CHANNELUP,    // Channel +
	[   19 ] = KEY_CHANNELDOWN,  // Channel -
	[    6 ] = KEY_AGAIN,        // Recal
	[   16 ] = KEY_KPENTER,      // Enter

	[   26 ] = KEY_F22,          // Stereo
	[   24 ] = KEY_EDIT,         // AV Source
};

static IR_KEYTAB_TYPE cinergy_codes[IR_KEYTAB_SIZE] = {
	[    0 ] = KEY_KP0,
	[    1 ] = KEY_KP1,
	[    2 ] = KEY_KP2,
	[    3 ] = KEY_KP3,
	[    4 ] = KEY_KP4,
	[    5 ] = KEY_KP5,
	[    6 ] = KEY_KP6,
	[    7 ] = KEY_KP7,
	[    8 ] = KEY_KP8,
	[    9 ] = KEY_KP9,

	[ 0x0a ] = KEY_POWER,
	[ 0x0b ] = KEY_PROG1,           // app
	[ 0x0c ] = KEY_ZOOM,            // zoom/fullscreen
	[ 0x0d ] = KEY_CHANNELUP,       // channel
	[ 0x0e ] = KEY_CHANNELDOWN,     // channel-
	[ 0x0f ] = KEY_VOLUMEUP,
	[ 0x10 ] = KEY_VOLUMEDOWN,
	[ 0x11 ] = KEY_TUNER,           // AV
	[ 0x12 ] = KEY_NUMLOCK,         // -/--
	[ 0x13 ] = KEY_AUDIO,           // audio
	[ 0x14 ] = KEY_MUTE,
	[ 0x15 ] = KEY_UP,
	[ 0x16 ] = KEY_DOWN,
	[ 0x17 ] = KEY_LEFT,
	[ 0x18 ] = KEY_RIGHT,
	[ 0x19 ] = BTN_LEFT,
	[ 0x1a ] = BTN_RIGHT,
	[ 0x1b ] = KEY_WWW,             // text
	[ 0x1c ] = KEY_REWIND,
	[ 0x1d ] = KEY_FORWARD,
	[ 0x1e ] = KEY_RECORD,
	[ 0x1f ] = KEY_PLAY,
	[ 0x20 ] = KEY_PREVIOUSSONG,
	[ 0x21 ] = KEY_NEXTSONG,
	[ 0x22 ] = KEY_PAUSE,
	[ 0x23 ] = KEY_STOP,
};

/* Alfons Geser <[e-mail]>
 * updates from Job D. R. Borges <[e-mail]> */
static IR_KEYTAB_TYPE eztv_codes[IR_KEYTAB_SIZE] = {
        [ 18 ] = KEY_POWER,
        [  1 ] = KEY_TV,             // DVR
        [ 21 ] = KEY_DVD,            // DVD
        [ 23 ] = KEY_AUDIO,          // music
                                     // DVR mode / DVD mode / music mode

        [ 27 ] = KEY_MUTE,           // mute
        [  2 ] = KEY_LANGUAGE,       // MTS/SAP / audio / autoseek
        [ 30 ] = KEY_SUBTITLE,       // closed captioning / subtitle / seek
        [ 22 ] = KEY_ZOOM,           // full screen
        [ 28 ] = KEY_VIDEO,          // video source / eject / delall
        [ 29 ] = KEY_RESTART,        // playback / angle / del
        [ 47 ] = KEY_SEARCH,         // scan / menu / playlist
        [ 48 ] = KEY_CHANNEL,        // CH surfing / bookmark / memo

        [ 49 ] = KEY_HELP,           // help
        [ 50 ] = KEY_MODE,           // num/memo
        [ 51 ] = KEY_ESC,            // cancel

	[ 12 ] = KEY_UP,             // up
	[ 16 ] = KEY_DOWN,           // down
	[  8 ] = KEY_LEFT,           // left
	[  4 ] = KEY_RIGHT,          // right
	[  3 ] = KEY_SELECT,         // select

	[ 31 ] = KEY_REWIND,         // rewind
	[ 32 ] = KEY_PLAYPAUSE,      // play/pause
	[ 41 ] = KEY_FORWARD,        // forward
	[ 20 ] = KEY_AGAIN,          // repeat
	[ 43 ] = KEY_RECORD,         // recording
	[ 44 ] = KEY_STOP,           // stop
	[ 45 ] = KEY_PLAY,           // play
	[ 46 ] = KEY_SHUFFLE,        // snapshot / shuffle

        [  0 ] = KEY_KP0,
        [  5 ] = KEY_KP1,
        [  6 ] = KEY_KP2,
        [  7 ] = KEY_KP3,
        [  9 ] = KEY_KP4,
        [ 10 ] = KEY_KP5,
        [ 11 ] = KEY_KP6,
        [ 13 ] = KEY_KP7,
        [ 14 ] = KEY_KP8,
        [ 15 ] = KEY_KP9,

        [ 42 ] = KEY_VOLUMEUP,
        [ 17 ] = KEY_VOLUMEDOWN,
        [ 24 ] = KEY_CHANNELUP,      // CH.tracking up
        [ 25 ] = KEY_CHANNELDOWN,    // CH.tracking down

        [ 19 ] = KEY_KPENTER,        // enter
        [ 33 ] = KEY_KPDOT,          // . (decimal dot)
};

static IR_KEYTAB_TYPE avacssmart_codes[IR_KEYTAB_SIZE] = {
	[ 30 ] = KEY_POWER,		// power
	[ 28 ] = KEY_SEARCH,		// scan
	[  7 ] = KEY_SELECT,		// source

	[ 22 ] = KEY_VOLUMEUP,
	[ 20 ] = KEY_VOLUMEDOWN,
	[ 31 ] = KEY_CHANNELUP,
	[ 23 ] = KEY_CHANNELDOWN,
	[ 24 ] = KEY_MUTE,

	[  2 ] = KEY_KP0,
	[  1 ] = KEY_KP1,
	[ 11 ] = KEY_KP2,
	[ 27 ] = KEY_KP3,
	[  5 ] = KEY_KP4,
	[  9 ] = KEY_KP5,
	[ 21 ] = KEY_KP6,
	[  6 ] = KEY_KP7,
	[ 10 ] = KEY_KP8,
	[ 18 ] = KEY_KP9,
	[ 16 ] = KEY_KPDOT,

	[  3 ] = KEY_TUNER,		// tv/fm
	[  4 ] = KEY_REWIND,		// fm tuning left or function left
	[ 12 ] = KEY_FORWARD,		// fm tuning right or function right

	[  0 ] = KEY_RECORD,
	[  8 ] = KEY_STOP,
	[ 17 ] = KEY_PLAY,

	[ 25 ] = KEY_ZOOM,
	[ 14 ] = KEY_MENU,		// function
	[ 19 ] = KEY_AGAIN,		// recall
	[ 29 ] = KEY_RESTART,		// reset
	[ 26 ] = KEY_SHUFFLE,		// snapshot/shuffle

// FIXME
	[ 13 ] = KEY_F21,		// mts
	[ 15 ] = KEY_F22,		// min
};

/* Alex Hermann <[e-mail]> */
static IR_KEYTAB_TYPE md2819_codes[IR_KEYTAB_SIZE] = {
	[ 40 ] = KEY_KP1,
	[ 24 ] = KEY_KP2,
	[ 56 ] = KEY_KP3,
	[ 36 ] = KEY_KP4,
	[ 20 ] = KEY_KP5,
	[ 52 ] = KEY_KP6,
	[ 44 ] = KEY_KP7,
	[ 28 ] = KEY_KP8,
	[ 60 ] = KEY_KP9,
	[ 34 ] = KEY_KP0,

	[ 32 ] = KEY_TV,		// TV/FM
	[ 16 ] = KEY_CD,		// CD
	[ 48 ] = KEY_TEXT,		// TELETEXT
	[  0 ] = KEY_POWER,		// POWER

	[  8 ] = KEY_VIDEO,		// VIDEO
	[  4 ] = KEY_AUDIO,		// AUDIO
	[ 12 ] = KEY_ZOOM,		// FULL SCREEN

	[ 18 ] = KEY_SUBTITLE,		// DISPLAY	- ???
	[ 50 ] = KEY_REWIND,		// LOOP		- ???
	[  2 ] = KEY_PRINT,		// PREVIEW	- ???

	[ 42 ] = KEY_SEARCH,		// AUTOSCAN
	[ 26 ] = KEY_SLEEP,		// FREEZE	- ???
	[ 58 ] = KEY_SHUFFLE,		// SNAPSHOT	- ???
	[ 10 ] = KEY_MUTE,		// MUTE

	[ 38 ] = KEY_RECORD,		// RECORD
	[ 22 ] = KEY_PAUSE,		// PAUSE
	[ 54 ] = KEY_STOP,		// STOP
	[  6 ] = KEY_PLAY,		// PLAY

	[ 46 ] = KEY_RED,		// <RED>
	[ 33 ] = KEY_GREEN,		// <GREEN>
	[ 14 ] = KEY_YELLOW,		// <YELLOW>
	[  1 ] = KEY_BLUE,		// <BLUE>

	[ 30 ] = KEY_VOLUMEDOWN,	// VOLUME-
	[ 62 ] = KEY_VOLUMEUP,		// VOLUME+
	[ 17 ] = KEY_CHANNELDOWN,	// CHANNEL/PAGE-
	[ 49 ] = KEY_CHANNELUP		// CHANNEL/PAGE+
};

static IR_KEYTAB_TYPE videomate_tv_pvr_codes[IR_KEYTAB_SIZE] = {
	[ 20 ] = KEY_MUTE,
	[ 36 ] = KEY_ZOOM,

	[  1 ] = KEY_DVD,
	[ 35 ] = KEY_RADIO,
	[  0 ] = KEY_TV,

	[ 10 ] = KEY_REWIND,
	[  8 ] = KEY_PLAYPAUSE,
	[ 15 ] = KEY_FORWARD,

	[  2 ] = KEY_PREVIOUS,
	[  7 ] = KEY_STOP,
	[  6 ] = KEY_NEXT,

	[ 12 ] = KEY_UP,
	[ 14 ] = KEY_DOWN,
	[ 11 ] = KEY_LEFT,
	[ 13 ] = KEY_RIGHT,
	[ 17 ] = KEY_OK,

	[  3 ] = KEY_MENU,
	[  9 ] = KEY_SETUP,
	[  5 ] = KEY_VIDEO,
	[ 34 ] = KEY_CHANNEL,

	[ 18 ] = KEY_VOLUMEUP,
	[ 21 ] = KEY_VOLUMEDOWN,
	[ 16 ] = KEY_CHANNELUP,
	[ 19 ] = KEY_CHANNELDOWN,

	[  4 ] = KEY_RECORD,

	[ 22 ] = KEY_KP1,
	[ 23 ] = KEY_KP2,
	[ 24 ] = KEY_KP3,
	[ 25 ] = KEY_KP4,
	[ 26 ] = KEY_KP5,
	[ 27 ] = KEY_KP6,
	[ 28 ] = KEY_KP7,
	[ 29 ] = KEY_KP8,