rockbox/firmware/target/arm/imx31/gigabeat-s/adc-imx31.c

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Wade Brown
*
* 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 "cpu.h"
#include "adc-target.h"
#include "kernel.h"
/* prototypes */
static unsigned short __adc_read(int channel);
static void adc_tick(void);
void adc_init(void)
{
}
/* Called to get the recent ADC reading */
inline unsigned short adc_read(int channel)
{
(void)channel;
return 0;
}
/**
* Read the ADC by polling
* @param channel The ADC channel to read
* @return 10bit reading from ADC channel or ADC_READ_ERROR if timeout
*/
static unsigned short __adc_read(int channel)
{
(void)channel;
return 0;
}
/* add this to the tick so that the ADC converts are done in the background */
static void adc_tick(void)
{
}