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/**
* @file
*
* @ingroup lpc176x
*
* @brief ADC library for the lpc176x bsp.
*/
/*
* Copyright (c) 2014 Taller Technologies.
*
* @author Diaz Marcos (marcos.diaz@tallertechnologies.com)
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef LPC176X_ADC_H
#define LPC176X_ADC_H
#include <bsp.h>
#include <bsp/common-types.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @brief Opens and initializes the ADC device.
*
* @param adc_number The ADC pin number to be initialized.
* @return RTEMS_SUCCESSFUL if the initialization was succesful,
* RTEMS_INVALID_NUMBER if wrong parameter.
*/
rtems_status_code adc_open( const lpc176x_pin_number pin_number );
/**
* @brief Closes the ADC device.
*
* @return RTEMS_SUCCESSFUL if closed succesfully.
*/
rtems_status_code adc_close( void );
/**
* @brief Starts a conversion, waits for it to finish and reads the value.
*
* @param pin_number The port to read the value.
* @param result The read result. (In a percentage between 0.0f and 1.0f).
*/
rtems_status_code adc_read(
const lpc176x_pin_number pin_number ,
float *const result
);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
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