0023943439
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20977 a1c6a512-1295-4272-9138-f99709370657
148 lines
4 KiB
C
148 lines
4 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2006 by Barry Wardell
|
|
*
|
|
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/* Custom written for the H10 based on analysis of the GPIO data */
|
|
|
|
|
|
#include <stdlib.h>
|
|
#include "config.h"
|
|
#include "cpu.h"
|
|
#include "system.h"
|
|
#include "button.h"
|
|
#include "kernel.h"
|
|
#include "backlight.h"
|
|
#include "adc.h"
|
|
|
|
|
|
void button_init_device(void)
|
|
{
|
|
/* Enable REW, FF, Play, Left, Right, Hold buttons */
|
|
GPIO_SET_BITWISE(GPIOA_ENABLE, 0xfc);
|
|
|
|
/* Enable POWER button */
|
|
GPIO_SET_BITWISE(GPIOB_ENABLE, 0x01);
|
|
|
|
/* We need to output to pin 6 of GPIOD when reading the scroll pad value */
|
|
GPIO_SET_BITWISE(GPIOD_ENABLE, 0x40);
|
|
GPIO_SET_BITWISE(GPIOD_OUTPUT_EN, 0x40);
|
|
GPIO_SET_BITWISE(GPIOD_OUTPUT_VAL, 0x40);
|
|
}
|
|
|
|
bool button_hold(void)
|
|
{
|
|
return (GPIOA_INPUT_VAL & 0x4)?false:true;
|
|
}
|
|
|
|
bool remote_button_hold(void)
|
|
{
|
|
return adc_scan(ADC_REMOTE) < 0x2B;
|
|
}
|
|
|
|
/*
|
|
* Get button pressed from hardware
|
|
*/
|
|
int button_read_device(void)
|
|
{
|
|
int btn = BUTTON_NONE;
|
|
int data;
|
|
unsigned char state;
|
|
static bool hold_button = false;
|
|
static bool remote_hold_button = false;
|
|
bool hold_button_old;
|
|
bool remote_hold_button_old;
|
|
|
|
/* Hold */
|
|
hold_button_old = hold_button;
|
|
hold_button = button_hold();
|
|
|
|
#ifndef BOOTLOADER
|
|
/* light handling */
|
|
if (hold_button != hold_button_old)
|
|
{
|
|
backlight_hold_changed(hold_button);
|
|
}
|
|
#endif
|
|
|
|
/* device buttons */
|
|
if (!hold_button)
|
|
{
|
|
/* Read normal buttons */
|
|
state = GPIOA_INPUT_VAL & 0xf8;
|
|
if ((state & 0x8) == 0) btn |= BUTTON_FF;
|
|
if ((state & 0x10) == 0) btn |= BUTTON_PLAY;
|
|
if ((state & 0x20) == 0) btn |= BUTTON_REW;
|
|
if ((state & 0x40) == 0) btn |= BUTTON_RIGHT;
|
|
if ((state & 0x80) == 0) btn |= BUTTON_LEFT;
|
|
|
|
/* Read power button */
|
|
if (GPIOB_INPUT_VAL & 0x1) btn |= BUTTON_POWER;
|
|
|
|
/* Read scroller */
|
|
if ( GPIOD_INPUT_VAL & 0x20 )
|
|
{
|
|
GPIO_CLEAR_BITWISE(GPIOD_OUTPUT_VAL, 0x40);
|
|
udelay(250);
|
|
data = adc_scan(ADC_SCROLLPAD);
|
|
GPIO_SET_BITWISE(GPIOD_OUTPUT_VAL, 0x40);
|
|
|
|
if(data < 0x224)
|
|
{
|
|
btn |= BUTTON_SCROLL_DOWN;
|
|
} else {
|
|
btn |= BUTTON_SCROLL_UP;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* remote buttons */
|
|
remote_hold_button_old = remote_hold_button;
|
|
|
|
data = adc_scan(ADC_REMOTE);
|
|
remote_hold_button = data < 0x2B;
|
|
|
|
#ifndef BOOTLOADER
|
|
if (remote_hold_button != remote_hold_button_old)
|
|
backlight_hold_changed(remote_hold_button);
|
|
#endif
|
|
|
|
if(!remote_hold_button)
|
|
{
|
|
if (data < 0x3FF)
|
|
{
|
|
if(data < 0x204)
|
|
if(data < 0x155)
|
|
btn |= BUTTON_RC_FF;
|
|
else
|
|
btn |= BUTTON_RC_REW;
|
|
else
|
|
if(data < 0x2D0)
|
|
btn |= BUTTON_RC_VOL_DOWN;
|
|
else
|
|
btn |= BUTTON_RC_VOL_UP;
|
|
}
|
|
}
|
|
|
|
/* remote play button should be dead if hold */
|
|
if (!remote_hold_button && !(GPIOA_INPUT_VAL & 0x1))
|
|
btn |= BUTTON_RC_PLAY;
|
|
|
|
return btn;
|
|
}
|