![Linus Torvalds](/assets/img/avatar_default.png)
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
445 lines
12 KiB
C
445 lines
12 KiB
C
/*
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* $Id: ir-kbd-gpio.c,v 1.12 2005/02/22 12:28:40 kraxel Exp $
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*
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* Copyright (c) 2003 Gerd Knorr
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* Copyright (c) 2003 Pavel Machek
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/input.h>
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#include <linux/pci.h>
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#include <media/ir-common.h>
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#include "bttv.h"
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/* ---------------------------------------------------------------------- */
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static IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE] = {
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[ 34 ] = KEY_KP0,
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[ 40 ] = KEY_KP1,
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[ 24 ] = KEY_KP2,
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[ 56 ] = KEY_KP3,
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[ 36 ] = KEY_KP4,
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[ 20 ] = KEY_KP5,
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[ 52 ] = KEY_KP6,
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[ 44 ] = KEY_KP7,
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[ 28 ] = KEY_KP8,
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[ 60 ] = KEY_KP9,
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[ 48 ] = KEY_EJECTCD, // Unmarked on my controller
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[ 0 ] = KEY_POWER,
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[ 18 ] = BTN_LEFT, // DISPLAY/L
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[ 50 ] = BTN_RIGHT, // LOOP/R
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[ 10 ] = KEY_MUTE,
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[ 38 ] = KEY_RECORD,
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[ 22 ] = KEY_PAUSE,
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[ 54 ] = KEY_STOP,
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[ 30 ] = KEY_VOLUMEDOWN,
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[ 62 ] = KEY_VOLUMEUP,
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[ 32 ] = KEY_TUNER, // TV/FM
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[ 16 ] = KEY_CD,
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[ 8 ] = KEY_VIDEO,
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[ 4 ] = KEY_AUDIO,
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[ 12 ] = KEY_ZOOM, // full screen
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[ 2 ] = KEY_INFO, // preview
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[ 42 ] = KEY_SEARCH, // autoscan
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[ 26 ] = KEY_STOP, // freeze
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[ 58 ] = KEY_RECORD, // capture
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[ 6 ] = KEY_PLAY, // unmarked
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[ 46 ] = KEY_RED, // unmarked
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[ 14 ] = KEY_GREEN, // unmarked
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[ 33 ] = KEY_YELLOW, // unmarked
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[ 17 ] = KEY_CHANNELDOWN,
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[ 49 ] = KEY_CHANNELUP,
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[ 1 ] = KEY_BLUE, // unmarked
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};
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/* Matt Jesson <dvb@jesson.eclipse.co.uk */
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static IR_KEYTAB_TYPE ir_codes_avermedia_dvbt[IR_KEYTAB_SIZE] = {
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[ 0x28 ] = KEY_KP0, //'0' / 'enter'
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[ 0x22 ] = KEY_KP1, //'1'
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[ 0x12 ] = KEY_KP2, //'2' / 'up arrow'
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[ 0x32 ] = KEY_KP3, //'3'
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[ 0x24 ] = KEY_KP4, //'4' / 'left arrow'
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[ 0x14 ] = KEY_KP5, //'5'
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[ 0x34 ] = KEY_KP6, //'6' / 'right arrow'
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[ 0x26 ] = KEY_KP7, //'7'
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[ 0x16 ] = KEY_KP8, //'8' / 'down arrow'
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[ 0x36 ] = KEY_KP9, //'9'
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[ 0x20 ] = KEY_LIST, // 'source'
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[ 0x10 ] = KEY_TEXT, // 'teletext'
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[ 0x00 ] = KEY_POWER, // 'power'
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[ 0x04 ] = KEY_AUDIO, // 'audio'
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[ 0x06 ] = KEY_ZOOM, // 'full screen'
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[ 0x18 ] = KEY_VIDEO, // 'display'
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[ 0x38 ] = KEY_SEARCH, // 'loop'
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[ 0x08 ] = KEY_INFO, // 'preview'
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[ 0x2a ] = KEY_REWIND, // 'backward <<'
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[ 0x1a ] = KEY_FASTFORWARD, // 'forward >>'
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[ 0x3a ] = KEY_RECORD, // 'capture'
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[ 0x0a ] = KEY_MUTE, // 'mute'
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[ 0x2c ] = KEY_RECORD, // 'record'
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[ 0x1c ] = KEY_PAUSE, // 'pause'
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[ 0x3c ] = KEY_STOP, // 'stop'
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[ 0x0c ] = KEY_PLAY, // 'play'
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[ 0x2e ] = KEY_RED, // 'red'
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[ 0x01 ] = KEY_BLUE, // 'blue' / 'cancel'
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[ 0x0e ] = KEY_YELLOW, // 'yellow' / 'ok'
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[ 0x21 ] = KEY_GREEN, // 'green'
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[ 0x11 ] = KEY_CHANNELDOWN, // 'channel -'
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[ 0x31 ] = KEY_CHANNELUP, // 'channel +'
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[ 0x1e ] = KEY_VOLUMEDOWN, // 'volume -'
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[ 0x3e ] = KEY_VOLUMEUP, // 'volume +'
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};
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static IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = {
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[ 2 ] = KEY_KP0,
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[ 1 ] = KEY_KP1,
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[ 11 ] = KEY_KP2,
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[ 27 ] = KEY_KP3,
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[ 5 ] = KEY_KP4,
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[ 9 ] = KEY_KP5,
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[ 21 ] = KEY_KP6,
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[ 6 ] = KEY_KP7,
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[ 10 ] = KEY_KP8,
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[ 18 ] = KEY_KP9,
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[ 3 ] = KEY_TUNER, // TV/FM
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[ 7 ] = KEY_SEARCH, // scan
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[ 28 ] = KEY_ZOOM, // full screen
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[ 30 ] = KEY_POWER,
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[ 23 ] = KEY_VOLUMEDOWN,
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[ 31 ] = KEY_VOLUMEUP,
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[ 20 ] = KEY_CHANNELDOWN,
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[ 22 ] = KEY_CHANNELUP,
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[ 24 ] = KEY_MUTE,
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[ 0 ] = KEY_LIST, // source
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[ 19 ] = KEY_INFO, // loop
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[ 16 ] = KEY_LAST, // +100
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[ 13 ] = KEY_CLEAR, // reset
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[ 12 ] = BTN_RIGHT, // fun++
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[ 4 ] = BTN_LEFT, // fun--
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[ 14 ] = KEY_GOTO, // function
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[ 15 ] = KEY_STOP, // freeze
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};
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/* Attila Kondoros <attila.kondoros@chello.hu> */
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static IR_KEYTAB_TYPE ir_codes_apac_viewcomp[IR_KEYTAB_SIZE] = {
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[ 1 ] = KEY_KP1,
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[ 2 ] = KEY_KP2,
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[ 3 ] = KEY_KP3,
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[ 4 ] = KEY_KP4,
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[ 5 ] = KEY_KP5,
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[ 6 ] = KEY_KP6,
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[ 7 ] = KEY_KP7,
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[ 8 ] = KEY_KP8,
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[ 9 ] = KEY_KP9,
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[ 0 ] = KEY_KP0,
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[ 23 ] = KEY_LAST, // +100
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[ 10 ] = KEY_LIST, // recall
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[ 28 ] = KEY_TUNER, // TV/FM
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[ 21 ] = KEY_SEARCH, // scan
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[ 18 ] = KEY_POWER, // power
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[ 31 ] = KEY_VOLUMEDOWN, // vol up
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[ 27 ] = KEY_VOLUMEUP, // vol down
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[ 30 ] = KEY_CHANNELDOWN, // chn up
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[ 26 ] = KEY_CHANNELUP, // chn down
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[ 17 ] = KEY_VIDEO, // video
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[ 15 ] = KEY_ZOOM, // full screen
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[ 19 ] = KEY_MUTE, // mute/unmute
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[ 16 ] = KEY_TEXT, // min
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[ 13 ] = KEY_STOP, // freeze
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[ 14 ] = KEY_RECORD, // record
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[ 29 ] = KEY_PLAYPAUSE, // stop
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[ 25 ] = KEY_PLAY, // play
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[ 22 ] = KEY_GOTO, // osd
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[ 20 ] = KEY_REFRESH, // default
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[ 12 ] = KEY_KPPLUS, // fine tune >>>>
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[ 24 ] = KEY_KPMINUS // fine tune <<<<
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};
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/* ---------------------------------------------------------------------- */
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struct IR {
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struct bttv_sub_device *sub;
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struct input_dev input;
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struct ir_input_state ir;
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char name[32];
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char phys[32];
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u32 mask_keycode;
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u32 mask_keydown;
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u32 mask_keyup;
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int polling;
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u32 last_gpio;
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struct work_struct work;
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struct timer_list timer;
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};
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static int debug;
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module_param(debug, int, 0644); /* debug level (0,1,2) */
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#define DEVNAME "ir-kbd-gpio"
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#define dprintk(fmt, arg...) if (debug) \
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printk(KERN_DEBUG DEVNAME ": " fmt , ## arg)
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static void ir_irq(struct bttv_sub_device *sub);
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static int ir_probe(struct device *dev);
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static int ir_remove(struct device *dev);
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static struct bttv_sub_driver driver = {
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.drv = {
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.name = DEVNAME,
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.probe = ir_probe,
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.remove = ir_remove,
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},
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.gpio_irq = ir_irq,
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};
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/* ---------------------------------------------------------------------- */
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static void ir_handle_key(struct IR *ir)
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{
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u32 gpio,data;
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/* read gpio value */
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gpio = bttv_gpio_read(ir->sub->core);
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if (ir->polling) {
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if (ir->last_gpio == gpio)
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return;
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ir->last_gpio = gpio;
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}
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/* extract data */
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data = ir_extract_bits(gpio, ir->mask_keycode);
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dprintk(DEVNAME ": irq gpio=0x%x code=%d | %s%s%s\n",
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gpio, data,
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ir->polling ? "poll" : "irq",
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(gpio & ir->mask_keydown) ? " down" : "",
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(gpio & ir->mask_keyup) ? " up" : "");
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if (ir->mask_keydown) {
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/* bit set on keydown */
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if (gpio & ir->mask_keydown) {
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ir_input_keydown(&ir->input,&ir->ir,data,data);
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} else {
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ir_input_nokey(&ir->input,&ir->ir);
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}
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} else if (ir->mask_keyup) {
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/* bit cleared on keydown */
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if (0 == (gpio & ir->mask_keyup)) {
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ir_input_keydown(&ir->input,&ir->ir,data,data);
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} else {
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ir_input_nokey(&ir->input,&ir->ir);
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}
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} else {
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/* can't disturgissh keydown/up :-/ */
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ir_input_keydown(&ir->input,&ir->ir,data,data);
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ir_input_nokey(&ir->input,&ir->ir);
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}
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}
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static void ir_irq(struct bttv_sub_device *sub)
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{
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struct IR *ir = dev_get_drvdata(&sub->dev);
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if (!ir->polling)
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ir_handle_key(ir);
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}
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static void ir_timer(unsigned long data)
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{
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struct IR *ir = (struct IR*)data;
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schedule_work(&ir->work);
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}
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static void ir_work(void *data)
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{
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struct IR *ir = data;
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unsigned long timeout;
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ir_handle_key(ir);
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timeout = jiffies + (ir->polling * HZ / 1000);
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mod_timer(&ir->timer, timeout);
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}
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/* ---------------------------------------------------------------------- */
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static int ir_probe(struct device *dev)
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{
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struct bttv_sub_device *sub = to_bttv_sub_dev(dev);
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struct IR *ir;
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IR_KEYTAB_TYPE *ir_codes = NULL;
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int ir_type = IR_TYPE_OTHER;
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ir = kmalloc(sizeof(*ir),GFP_KERNEL);
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if (NULL == ir)
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return -ENOMEM;
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memset(ir,0,sizeof(*ir));
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/* detect & configure */
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switch (sub->core->type) {
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case BTTV_AVERMEDIA:
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case BTTV_AVPHONE98:
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case BTTV_AVERMEDIA98:
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ir_codes = ir_codes_avermedia;
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ir->mask_keycode = 0xf88000;
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ir->mask_keydown = 0x010000;
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ir->polling = 50; // ms
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break;
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case BTTV_AVDVBT_761:
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case BTTV_AVDVBT_771:
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ir_codes = ir_codes_avermedia_dvbt;
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ir->mask_keycode = 0x0f00c0;
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ir->mask_keydown = 0x000020;
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ir->polling = 50; // ms
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break;
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case BTTV_PXELVWPLTVPAK:
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ir_codes = ir_codes_pixelview;
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ir->mask_keycode = 0x003e00;
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ir->mask_keyup = 0x010000;
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ir->polling = 50; // ms
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break;
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case BTTV_PV_BT878P_9B:
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case BTTV_PV_BT878P_PLUS:
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ir_codes = ir_codes_pixelview;
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ir->mask_keycode = 0x001f00;
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ir->mask_keyup = 0x008000;
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ir->polling = 50; // ms
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break;
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case BTTV_WINFAST2000:
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ir_codes = ir_codes_winfast;
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ir->mask_keycode = 0x1f8;
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break;
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case BTTV_MAGICTVIEW061:
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case BTTV_MAGICTVIEW063:
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ir_codes = ir_codes_winfast;
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ir->mask_keycode = 0x0008e000;
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ir->mask_keydown = 0x00200000;
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break;
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case BTTV_APAC_VIEWCOMP:
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ir_codes = ir_codes_apac_viewcomp;
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ir->mask_keycode = 0x001f00;
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ir->mask_keyup = 0x008000;
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ir->polling = 50; // ms
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break;
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}
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if (NULL == ir_codes) {
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kfree(ir);
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return -ENODEV;
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}
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/* init hardware-specific stuff */
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bttv_gpio_inout(sub->core, ir->mask_keycode | ir->mask_keydown, 0);
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ir->sub = sub;
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/* init input device */
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snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
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sub->core->type);
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snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
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pci_name(sub->core->pci));
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ir_input_init(&ir->input, &ir->ir, ir_type, ir_codes);
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ir->input.name = ir->name;
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ir->input.phys = ir->phys;
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ir->input.id.bustype = BUS_PCI;
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ir->input.id.version = 1;
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if (sub->core->pci->subsystem_vendor) {
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ir->input.id.vendor = sub->core->pci->subsystem_vendor;
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ir->input.id.product = sub->core->pci->subsystem_device;
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} else {
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ir->input.id.vendor = sub->core->pci->vendor;
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ir->input.id.product = sub->core->pci->device;
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}
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if (ir->polling) {
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INIT_WORK(&ir->work, ir_work, ir);
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init_timer(&ir->timer);
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ir->timer.function = ir_timer;
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ir->timer.data = (unsigned long)ir;
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schedule_work(&ir->work);
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}
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/* all done */
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dev_set_drvdata(dev,ir);
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input_register_device(&ir->input);
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printk(DEVNAME ": %s detected at %s\n",ir->input.name,ir->input.phys);
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return 0;
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}
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static int ir_remove(struct device *dev)
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{
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struct IR *ir = dev_get_drvdata(dev);
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if (ir->polling) {
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del_timer(&ir->timer);
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flush_scheduled_work();
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}
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input_unregister_device(&ir->input);
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kfree(ir);
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return 0;
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}
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/* ---------------------------------------------------------------------- */
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MODULE_AUTHOR("Gerd Knorr, Pavel Machek");
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MODULE_DESCRIPTION("input driver for bt8x8 gpio IR remote controls");
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MODULE_LICENSE("GPL");
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static int ir_init(void)
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{
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return bttv_sub_register(&driver, "remote");
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}
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static void ir_fini(void)
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{
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bttv_sub_unregister(&driver);
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}
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module_init(ir_init);
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module_exit(ir_fini);
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/*
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* Local variables:
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* c-basic-offset: 8
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* End:
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*/
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