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Untested first attempt at a Sansa button driver. Based on work by MrH

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11219 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Daniel Ankers 2006-10-14 12:14:23 +00:00
parent 6aa12c11f7
commit d282e14d33
2 changed files with 132 additions and 3 deletions
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82
firmware/target/arm/sandisk/sansa-e200/button-e200.c Normal file
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@ -0,0 +1,82 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Barry Wardell
*
* 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.
*
****************************************************************************/
/* Taken from button-h10.c by Barry Wardell and reverse engineering by MrH. */
#include <stdlib.h>
#include "config.h"
#include "cpu.h"
#include "system.h"
#include "button.h"
#include "kernel.h"
#include "backlight.h"
#include "system.h"
void button_init_device(void)
{
/* Enable all buttons except the wheel */
GPIOF_ENABLE |= 0xff;
}
bool button_hold(void)
{
return (GPIOF_INPUT_VAL & 0x80)?true:false;
}
/*
* Get button pressed from hardware
*/
int button_read_device(void)
{
int btn = BUTTON_NONE;
unsigned char state;
static bool hold_button = false;
bool hold_button_old;
/* Hold */
hold_button_old = hold_button;
hold_button = button_hold();
#if 0
#ifndef BOOTLOADER
/* light handling */
if (hold_button != hold_button_old)
{
backlight_hold_changed(hold_button);
}
#endif
#endif
/* device buttons */
if (!hold_button)
{
/* Read normal buttons */
state = GPIOF_INPUT_VAL & 0xff;
if ((state & 0x1) == 0) btn |= BUTTON_REC;
if ((state & 0x2) == 0) btn |= BUTTON_DOWN;
if ((state & 0x4) == 0) btn |= BUTTON_RIGHT;
if ((state & 0x8) == 0) btn |= BUTTON_LEFT;
if ((state & 0x10) == 0) btn |= BUTTON_SELECT; /* The centre button */
if ((state & 0x20) == 0) btn |= BUTTON_UP; /* The "play" button */
if ((state & 0x40) == 1) btn |= BUTTON_POWER;
}
return btn;
}

53
firmware/target/arm/sandisk/sansa-e200/button-target.h
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@ -1,7 +1,54 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Barry Wardell
*
* 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.
*
****************************************************************************/
#define BUTTON_POWER 0x00000001
#define BUTTON_LEFT 0x00000002
#ifndef _BUTTON_TARGET_H_
#define _BUTTON_TARGET_H_
#include <stdbool.h>
#include "config.h"
#define HAS_BUTTON_HOLD
bool button_hold(void);
void button_init_device(void);
int button_read_device(void);
/* Sandisk Sansa E200 button codes */
/* Main unit's buttons */
#define BUTTON_REC 0x00000001
#define BUTTON_STOP 0x00000002
#define BUTTON_RIGHT 0x00000004
#define BUTTON_LEFT 0x00000008
#define BUTTON_SELECT 0x00000010
#define BUTTON_PLAY 0x00000020
#define BUTTON_POWER 0x00000040
#define BUTTON_UP 0x00000080
#define BUTTON_DOWN 0x00000100
#define BUTTON_MAIN 0x00000fff
/* No Remote control */
#define BUTTON_REMOTE 0
#define POWEROFF_BUTTON BUTTON_POWER
#define POWEROFF_COUNT 40
#define POWEROFF_COUNT 10
#endif /* _BUTTON_TARGET_H_ */