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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Jonathan Gordon
*
* 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.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
#include "system.h"
#include "button.h"
#include "backlight.h"
#include "adc.h"
#include "lcd-remote.h"
/* have buttons scan by default */
static bool button_scan_on = true;
void button_init_device(void)
{
/* Set GPIO9 and GPIO15 as general purpose inputs */
GPIO_ENABLE &= ~0x00008200;
GPIO_FUNCTION |= 0x00008200;
/* Set GPIO33, GPIO37, GPIO38 and GPIO52 as general purpose inputs */
GPIO1_ENABLE &= ~0x00100060;
GPIO1_FUNCTION |= 0x00100062;
}
void button_enable_scan(bool enable)
{
button_scan_on = enable;
}
bool button_scan_enabled(void)
{
return button_scan_on;
}
bool button_hold(void)
{
return (GPIO1_READ & 0x00000002)?true:false;
}
bool remote_button_hold_only(void)
{
if(remote_type() == REMOTETYPE_H300_NONLCD)
return adc_scan(ADC_REMOTE)<0x0d; /* hold should be 0x00 */
else
return (GPIO1_READ & 0x00100000)?true:false;
}
/* returns true only if there is remote present */
bool remote_button_hold(void)
{
/* H300's NON-LCD remote doesn't set the "remote present" bit */
if(remote_type() == REMOTETYPE_H300_NONLCD)
return remote_button_hold_only();
else
return ((GPIO_READ & 0x40000000) == 0)?remote_button_hold_only():false;
}
/*
* Get button pressed from hardware
*/
int button_read_device(void)
{
int btn = BUTTON_NONE;
int data;
static bool hold_button = false;
static bool remote_hold_button = false;
static int prev_data = 0xff;
static int last_valid = 0xff;
bool hold_button_old;
bool remote_hold_button_old;
/* normal buttons */
hold_button_old = hold_button;
hold_button = button_hold();
#ifndef BOOTLOADER
if (hold_button != hold_button_old)
backlight_hold_changed(hold_button);
#endif
if (button_scan_on && !hold_button)
{
data = adc_scan(ADC_BUTTONS);
/* ADC debouncing: Only accept new reading if it's
* stable (+/-1). Use latest stable value otherwise. */
if ((unsigned)(data - prev_data + 1) <= 2)
last_valid = data;
prev_data = data;
data = last_valid;
if (data < 0xba)
{
if (data < 0x54)
if (data < 0x30)
if (data < 0x10)
btn = BUTTON_SELECT;
else
btn = BUTTON_UP;
else
btn = BUTTON_LEFT;
else
if (data < 0x98)
if (data < 0x76)
btn = BUTTON_DOWN;
else
btn = BUTTON_RIGHT;
else
btn = BUTTON_OFF;
}
}
/* remote buttons */
remote_hold_button_old = remote_hold_button;
remote_hold_button = remote_button_hold_only();
#ifndef BOOTLOADER
if (remote_hold_button != remote_hold_button_old)
remote_backlight_hold_changed(remote_hold_button);
#endif
if (!remote_hold_button)
{
data = adc_scan(ADC_REMOTE);
switch (remote_type())
{
case REMOTETYPE_H100_LCD:
if (data < 0xf5)
{
if (data < 0x73)
if (data < 0x3f)
if (data < 0x25)
if(data < 0x0c)
btn |= BUTTON_RC_STOP;
else
btn |= BUTTON_RC_VOL_DOWN;
else
btn |= BUTTON_RC_MODE;
else
if (data < 0x5a)
btn |= BUTTON_RC_VOL_UP;
else
btn |= BUTTON_RC_BITRATE;
else
if (data < 0xa8)
if (data < 0x8c)
btn |= BUTTON_RC_REC;
else
btn |= BUTTON_RC_SOURCE;
else
if (data < 0xdf)
if(data < 0xc5)
btn |= BUTTON_RC_FF;
else
btn |= BUTTON_RC_MENU;
else
btn |= BUTTON_RC_REW;
}
break;
case REMOTETYPE_H300_LCD:
if (data < 0xf5)
{
if (data < 0x73)
if (data < 0x42)
if (data < 0x27)
if(data < 0x0c)
btn |= BUTTON_RC_VOL_DOWN;
else
btn |= BUTTON_RC_FF;
else
btn |= BUTTON_RC_STOP;
else
if (data < 0x5b)
btn |= BUTTON_RC_MODE;
else
btn |= BUTTON_RC_REC;
else
if (data < 0xab)
if (data < 0x8e)
btn |= BUTTON_RC_ON;
else
btn |= BUTTON_RC_BITRATE;
else
if (data < 0xde)
if(data < 0xc5)
btn |= BUTTON_RC_SOURCE;
else
btn |= BUTTON_RC_VOL_UP;
else
btn |= BUTTON_RC_REW;
}
break;
case REMOTETYPE_H300_NONLCD:
if (data < 0xf1)
{
if (data < 0x7d)
if (data < 0x25)
btn |= BUTTON_RC_FF;
else
btn |= BUTTON_RC_REW;
else
if (data < 0xd5)
btn |= BUTTON_RC_VOL_DOWN;
else
btn |= BUTTON_RC_VOL_UP;
}
break;
}
}
if (!hold_button)
{
data = GPIO_READ;
if ((data & 0x0200) == 0)
btn |= BUTTON_MODE;
if ((data & 0x8000) == 0)
btn |= BUTTON_REC;
}
data = GPIO1_READ;
if (!hold_button && ((data & 0x20) == 0))
btn |= BUTTON_ON;
if (!remote_hold_button && ((data & 0x40) == 0))
switch(remote_type())
{
case REMOTETYPE_H100_LCD:
case REMOTETYPE_H300_NONLCD:
btn |= BUTTON_RC_ON;
break;
case REMOTETYPE_H300_LCD:
btn |= BUTTON_RC_MENU;
break;
}
return btn;
}
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