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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_DEFS_H
#define LPC176X_ADC_DEFS_H
#include <bsp.h>
#include <bsp/io.h>
#include <bsp/lpc176x.h>
#include <bsp/adc.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @brief The ADC inputs of the board.
*/
typedef enum {
ADC_0,
ADC_1,
ADC_2,
ADC_3,
ADC_4,
ADC_5,
ADC_6,
ADC_7,
ADC_DEVICES_COUNT
} lpc176x_adc_number;
#define MAX_ADC_CLK 13000000u
#define ADC_RANGE 0xFFFu
#define ADC_NUMBER_VALID( number ) ( ( (uint32_t) number ) < \
ADC_DEVICES_COUNT )
#define ADC_CR_SEL( val ) BSP_FLD32( val, 0, 7 )
#define ADC_CR_SEL_GET( val ) BSP_FLD32GET( val, 0, 7 )
#define ADC_CR_SEL_SET( reg, val ) BSP_FLD32SET( reg, val, 0, 7 )
#define ADC_CR_CLKDIV( val ) BSP_FLD32( val, 8, 15 )
#define ADC_CR_CLKDIV_GET( reg ) BSP_FLD32GET( reg, 8, 15 )
#define ADC_CR_CLKDIV_SET( reg, val ) BSP_FLD32SET( reg, val, 8, 15 )
#define ADC_CR_BURST BSP_BIT32( 16 )
#define ADC_CR_CLKS( val ) BSP_FLD32( val, 17, 19 )
#define ADC_CR_PDN BSP_BIT32( 21 )
#define ADC_CR_START_NOW BSP_BIT32( 24 )
#define ADC_CR_START( val ) BSP_FLD32( val, 24, 26 )
#define ADC_CR_EDGE BSP_BIT32( 27 )
#define ADC_DR_VALUE( reg ) BSP_FLD32GET( reg, 4, 15 )
#define ADC_DR_OVERRUN BSP_BIT32( 30 )
#define ADC_DR_DONE BSP_BIT32( 31 )
#define ADC_DATA_CONVERSION_DONE( val ) ( ( val & ADC_DR_DONE ) != 0u )
/**
* @brief The ADC low-level device.
*/
typedef struct {
volatile uint32_t ADCR;
volatile uint32_t ADGDR;
volatile uint32_t RESERVED0;
volatile uint32_t ADINTEN;
volatile uint32_t ADDR[ ADC_DEVICES_COUNT ];
volatile uint32_t ADSTAT;
volatile uint32_t ADTRM;
} lpc176x_adc_device;
/**
* @brief Represents the pin and function for each ADC input.
*/
typedef struct {
uint32_t pin_number;
lpc176x_pin_function pin_function;
} lpc176x_adc_pin_map;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
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