rockbox/firmware/target/arm/sandisk/sansa-c200/button-c200.c

62 lines
1.9 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id:$
*
* Copyright (C) 2007 by Mark Arigo
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "system.h"
#include "button.h"
#include "backlight.h"
void button_init_device(void)
{
/* TODO...for now, hardware initialisation is done by the c200 bootloader */
}
bool button_hold(void)
{
return !(GPIOI_INPUT_VAL & 0x80);
}
/*
* Get button pressed from hardware
*/
int button_read_device(void)
{
int btn = BUTTON_NONE;
static bool hold_button = false;
bool hold_button_old;
/* Hold */
hold_button_old = hold_button;
hold_button = button_hold();
/* device buttons */
if (!hold_button)
{
if ( (GPIOB_INPUT_VAL & 0x20)) btn |= BUTTON_POWER;
if (!(GPIOG_INPUT_VAL & 0x10)) btn |= BUTTON_UP;
if (!(GPIOH_INPUT_VAL & 0x01)) btn |= BUTTON_DOWN;
if (!(GPIOI_INPUT_VAL & 0x04)) btn |= BUTTON_LEFT;
if (!(GPIOG_INPUT_VAL & 0x02)) btn |= BUTTON_RIGHT;
if (!(GPIOL_INPUT_VAL & 0x04)) btn |= BUTTON_SELECT;
if (!(GPIOG_INPUT_VAL & 0x01)) btn |= BUTTON_REC;
if (!(GPIOL_INPUT_VAL & 0x10)) btn |= BUTTON_VOL_UP;
if (!(GPIOL_INPUT_VAL & 0x20)) btn |= BUTTON_VOL_DOWN;
}
return btn;
}