rockbox/firmware/target/arm/sandisk/sansa-c200/button-c200.c
Daniel Stenberg 2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
2008-06-28 18:10:04 +00:00

69 lines
2.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id:$
*
* Copyright (C) 2007 by Mark Arigo
*
* 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 "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();
#ifndef BOOTLOADER
if (hold_button != hold_button_old)
backlight_hold_changed(hold_button);
#endif
/* 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;
}