MicroAPRS/bertos/drv/adc.c

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2014-04-03 14:21:37 -06:00
/**
* \file
* <!--
* This file is part of BeRTOS.
*
* Bertos 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 program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As a special exception, you may use this file as part of a free software
* library without restriction. Specifically, if other files instantiate
* templates or use macros or inline functions from this file, or you compile
* this file and link it with other files to produce an executable, this
* file does not by itself cause the resulting executable to be covered by
* the GNU General Public License. This exception does not however
* invalidate any other reasons why the executable file might be covered by
* the GNU General Public License.
*
* Copyright 2005 Develer S.r.l. (http://www.develer.com/)
*
* -->
*
* \brief ADC driver (implementation)
*
* \author Francesco Sacchi <batt@develer.com>
*/
#include <drv/adc.h>
#ifndef WIZ_AUTOGEN
#warning Deprecated: now you should include adc_<cpu> directly in the makefile. Remove this line and the following once done.
#include CPU_CSOURCE(adc)
#else
#include CPU_HEADER(adc)
#endif
#include <cfg/debug.h> // ASSERT()
#include <cfg/macros.h> // MIN()
#include <cfg/compiler.h>
#include <cfg/module.h>
/**
* Read the ADC channel \a ch.
*/
adcread_t adc_read(adc_ch_t ch)
{
ASSERT(ch <= (adc_ch_t)ADC_MUX_MAXCH);
ch = MIN(ch, (adc_ch_t)ADC_MUX_MAXCH);
adc_hw_select_ch(ch);
return(adc_hw_read());
}
MOD_DEFINE(adc);
/**
* Initialize the ADC hardware.
*/
void adc_init(void)
{
adc_hw_init();
MOD_INIT(adc);
}