forked from luck/tmp_suning_uos_patched
1da177e4c3
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!
397 lines
11 KiB
C
397 lines
11 KiB
C
/*
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* $Id: cx88-input.c,v 1.9 2005/03/04 09:12:23 kraxel Exp $
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*
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* Device driver for GPIO attached remote control interfaces
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* on Conexant 2388x based TV/DVB cards.
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*
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* Copyright (c) 2003 Pavel Machek
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* Copyright (c) 2004 Gerd Knorr
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* Copyright (c) 2004 Chris Pascoe
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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/init.h>
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#include <linux/delay.h>
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#include <linux/input.h>
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#include <linux/pci.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <media/ir-common.h>
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#include "cx88.h"
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/* ---------------------------------------------------------------------- */
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/* DigitalNow DNTV Live DVB-T Remote */
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static IR_KEYTAB_TYPE ir_codes_dntv_live_dvb_t[IR_KEYTAB_SIZE] = {
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[ 0x00 ] = KEY_ESC, // 'go up a level?'
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[ 0x01 ] = KEY_KP1, // '1'
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[ 0x02 ] = KEY_KP2, // '2'
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[ 0x03 ] = KEY_KP3, // '3'
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[ 0x04 ] = KEY_KP4, // '4'
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[ 0x05 ] = KEY_KP5, // '5'
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[ 0x06 ] = KEY_KP6, // '6'
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[ 0x07 ] = KEY_KP7, // '7'
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[ 0x08 ] = KEY_KP8, // '8'
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[ 0x09 ] = KEY_KP9, // '9'
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[ 0x0a ] = KEY_KP0, // '0'
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[ 0x0b ] = KEY_TUNER, // 'tv/fm'
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[ 0x0c ] = KEY_SEARCH, // 'scan'
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[ 0x0d ] = KEY_STOP, // 'stop'
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[ 0x0e ] = KEY_PAUSE, // 'pause'
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[ 0x0f ] = KEY_LIST, // 'source'
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[ 0x10 ] = KEY_MUTE, // 'mute'
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[ 0x11 ] = KEY_REWIND, // 'backward <<'
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[ 0x12 ] = KEY_POWER, // 'power'
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[ 0x13 ] = KEY_S, // 'snap'
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[ 0x14 ] = KEY_AUDIO, // 'stereo'
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[ 0x15 ] = KEY_CLEAR, // 'reset'
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[ 0x16 ] = KEY_PLAY, // 'play'
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[ 0x17 ] = KEY_ENTER, // 'enter'
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[ 0x18 ] = KEY_ZOOM, // 'full screen'
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[ 0x19 ] = KEY_FASTFORWARD, // 'forward >>'
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[ 0x1a ] = KEY_CHANNELUP, // 'channel +'
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[ 0x1b ] = KEY_VOLUMEUP, // 'volume +'
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[ 0x1c ] = KEY_INFO, // 'preview'
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[ 0x1d ] = KEY_RECORD, // 'record'
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[ 0x1e ] = KEY_CHANNELDOWN, // 'channel -'
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[ 0x1f ] = KEY_VOLUMEDOWN, // 'volume -'
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};
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/* ---------------------------------------------------------------------- */
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/* IO-DATA BCTV7E Remote */
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static IR_KEYTAB_TYPE ir_codes_iodata_bctv7e[IR_KEYTAB_SIZE] = {
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[ 0x40 ] = KEY_TV, // TV
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[ 0x20 ] = KEY_RADIO, // FM
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[ 0x60 ] = KEY_EPG, // EPG
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[ 0x00 ] = KEY_POWER, // power
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[ 0x50 ] = KEY_KP1, // 1
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[ 0x30 ] = KEY_KP2, // 2
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[ 0x70 ] = KEY_KP3, // 3
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[ 0x10 ] = KEY_L, // Live
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[ 0x48 ] = KEY_KP4, // 4
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[ 0x28 ] = KEY_KP5, // 5
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[ 0x68 ] = KEY_KP6, // 6
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[ 0x08 ] = KEY_T, // Time Shift
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[ 0x58 ] = KEY_KP7, // 7
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[ 0x38 ] = KEY_KP8, // 8
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[ 0x78 ] = KEY_KP9, // 9
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[ 0x18 ] = KEY_PLAYPAUSE, // Play
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[ 0x44 ] = KEY_KP0, // 10
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[ 0x24 ] = KEY_ENTER, // 11
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[ 0x64 ] = KEY_ESC, // 12
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[ 0x04 ] = KEY_M, // Multi
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[ 0x54 ] = KEY_VIDEO, // VIDEO
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[ 0x34 ] = KEY_CHANNELUP, // channel +
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[ 0x74 ] = KEY_VOLUMEUP, // volume +
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[ 0x14 ] = KEY_MUTE, // Mute
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[ 0x4c ] = KEY_S, // SVIDEO
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[ 0x2c ] = KEY_CHANNELDOWN, // channel -
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[ 0x6c ] = KEY_VOLUMEDOWN, // volume -
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[ 0x0c ] = KEY_ZOOM, // Zoom
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[ 0x5c ] = KEY_PAUSE, // pause
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[ 0x3c ] = KEY_C, // || (red)
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[ 0x7c ] = KEY_RECORD, // recording
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[ 0x1c ] = KEY_STOP, // stop
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[ 0x41 ] = KEY_REWIND, // backward <<
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[ 0x21 ] = KEY_PLAY, // play
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[ 0x61 ] = KEY_FASTFORWARD, // forward >>
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[ 0x01 ] = KEY_NEXT, // skip >|
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};
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/* ---------------------------------------------------------------------- */
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struct cx88_IR {
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struct cx88_core *core;
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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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/* sample from gpio pin 16 */
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int sampling;
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u32 samples[16];
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int scount;
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unsigned long release;
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/* poll external decoder */
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int polling;
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struct work_struct work;
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struct timer_list timer;
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u32 gpio_addr;
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u32 last_gpio;
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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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};
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static int ir_debug = 0;
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module_param(ir_debug, int, 0644); /* debug level [IR] */
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MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
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#define ir_dprintk(fmt, arg...) if (ir_debug) \
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printk(KERN_DEBUG "%s IR: " fmt , ir->core->name, ## arg)
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/* ---------------------------------------------------------------------- */
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static void cx88_ir_handle_key(struct cx88_IR *ir)
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{
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struct cx88_core *core = ir->core;
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u32 gpio, data;
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/* read gpio value */
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gpio = cx_read(ir->gpio_addr);
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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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ir_dprintk("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 distinguish 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_timer(unsigned long data)
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{
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struct cx88_IR *ir = (struct cx88_IR*)data;
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schedule_work(&ir->work);
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}
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static void cx88_ir_work(void *data)
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{
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struct cx88_IR *ir = data;
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unsigned long timeout;
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cx88_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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int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
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{
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struct cx88_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 (core->board) {
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case CX88_BOARD_DNTV_LIVE_DVB_T:
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ir_codes = ir_codes_dntv_live_dvb_t;
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ir->gpio_addr = MO_GP1_IO;
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ir->mask_keycode = 0x1f;
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ir->mask_keyup = 0x60;
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ir->polling = 50; // ms
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break;
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case CX88_BOARD_HAUPPAUGE:
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case CX88_BOARD_HAUPPAUGE_DVB_T1:
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ir_codes = ir_codes_hauppauge_new;
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ir_type = IR_TYPE_RC5;
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ir->sampling = 1;
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break;
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case CX88_BOARD_WINFAST2000XP_EXPERT:
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ir_codes = ir_codes_winfast;
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ir->gpio_addr = MO_GP0_IO;
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ir->mask_keycode = 0x8f8;
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ir->mask_keyup = 0x100;
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ir->polling = 1; // ms
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break;
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case CX88_BOARD_IODATA_GVBCTV7E:
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ir_codes = ir_codes_iodata_bctv7e;
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ir->gpio_addr = MO_GP0_IO;
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ir->mask_keycode = 0xfd;
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ir->mask_keydown = 0x02;
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ir->polling = 5; // 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 input device */
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snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)",
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cx88_boards[core->board].name);
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snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
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pci_name(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 (pci->subsystem_vendor) {
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ir->input.id.vendor = pci->subsystem_vendor;
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ir->input.id.product = pci->subsystem_device;
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} else {
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ir->input.id.vendor = pci->vendor;
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ir->input.id.product = pci->device;
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}
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/* record handles to ourself */
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ir->core = core;
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core->ir = ir;
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if (ir->polling) {
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INIT_WORK(&ir->work, cx88_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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if (ir->sampling) {
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core->pci_irqmask |= (1<<18); // IR_SMP_INT
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cx_write(MO_DDS_IO, 0xa80a80); // 4 kHz sample rate
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cx_write(MO_DDSCFG_IO, 0x5); // enable
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}
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/* all done */
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input_register_device(&ir->input);
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printk("%s: registered IR remote control\n", core->name);
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return 0;
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}
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int cx88_ir_fini(struct cx88_core *core)
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{
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struct cx88_IR *ir = core->ir;
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/* skip detach on non attached boards */
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if (NULL == ir)
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return 0;
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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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/* done */
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core->ir = NULL;
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return 0;
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}
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/* ---------------------------------------------------------------------- */
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void cx88_ir_irq(struct cx88_core *core)
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{
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struct cx88_IR *ir = core->ir;
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u32 samples,rc5;
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int i;
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if (NULL == ir)
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return;
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if (!ir->sampling)
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return;
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samples = cx_read(MO_SAMPLE_IO);
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if (0 != samples && 0xffffffff != samples) {
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/* record sample data */
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if (ir->scount < ARRAY_SIZE(ir->samples))
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ir->samples[ir->scount++] = samples;
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return;
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}
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if (!ir->scount) {
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/* nothing to sample */
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if (ir->ir.keypressed && time_after(jiffies,ir->release))
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ir_input_nokey(&ir->input,&ir->ir);
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return;
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}
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/* have a complete sample */
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if (ir->scount < ARRAY_SIZE(ir->samples))
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ir->samples[ir->scount++] = samples;
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for (i = 0; i < ir->scount; i++)
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ir->samples[i] = ~ir->samples[i];
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if (ir_debug)
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ir_dump_samples(ir->samples,ir->scount);
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/* decode it */
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switch (core->board) {
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case CX88_BOARD_HAUPPAUGE:
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case CX88_BOARD_HAUPPAUGE_DVB_T1:
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rc5 = ir_decode_biphase(ir->samples,ir->scount,5,7);
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ir_dprintk("biphase decoded: %x\n",rc5);
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if ((rc5 & 0xfffff000) != 0x3000)
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break;
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ir_input_keydown(&ir->input, &ir->ir, rc5 & 0x3f, rc5);
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ir->release = jiffies + msecs_to_jiffies(120);
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break;
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}
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ir->scount = 0;
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return;
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}
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/* ---------------------------------------------------------------------- */
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MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
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MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
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MODULE_LICENSE("GPL");
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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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