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Sansa AMS: refactor DBOP button reading (e200v2/Fuze/c200v2)

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This gets rid of LCD glitches on Sansa Fuze, and now LCD transfers can
get interrupted by button reading

Flyspray: FS #10603
Author: Bertrik Sikken

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24192 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-01-06 23:41:36 +00:00
parent 8e8e2627b2
commit 57667c51cf
9 changed files with 162 additions and 320 deletions
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21
firmware/target/arm/as3525/sansa-c200v2/button-c200v2.c
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@ -5,9 +5,9 @@
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id: button-e200v2.c 19035 2008-11-07 05:31:05Z jdgordon $
* $Id: button-c200v2.c 19035 2008-11-07 05:31:05Z jdgordon $
*
* Copyright (C) 2006 by Barry Wardell
* Copyright (C) 2006 by Barry Wardell, (C) 2009 by Bertrik Sikken
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -19,29 +19,20 @@
*
****************************************************************************/
#include "config.h"
#include "system.h"
#include "button-target.h"
#include "button.h"
#include "backlight.h"
#include "powermgmt.h"
#include "dbop-as3525.h"
static unsigned short _dbop_din = 0xFFFF;
/* in the lcd driver */
extern unsigned short int lcd_dbop_input(void);
static unsigned short _dbop_din;
static bool hold_button = false;
#ifndef BOOTLOADER
static bool hold_button_old = false;
#endif
/* for the debug menu */
unsigned short button_dbop_data(void)
{
return _dbop_din;
}
void button_init_device(void)
{
GPIOA_DIR &= ~(1<<3);
@ -59,7 +50,7 @@ int button_read_device(void)
{
int btn = BUTTON_NONE;
_dbop_din = lcd_dbop_input();
_dbop_din = dbop_read_input();
/* hold button handling */
hold_button = ((_dbop_din & (1<<12)) == 0);