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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2011-02-21 onelife Initial creation for EFM32
* 2011-07-14 onelife Add multiple channels support for scan mode
*/
#ifndef __DRV_ADC_H__
#define __DRV_ADC_H__
/* Includes ------------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
struct efm32_adc_device_t
{
ADC_TypeDef *adc_device;
rt_uint8_t mode;
rt_uint8_t singleCount;
rt_uint8_t singleDmaChannel;
rt_uint8_t scanCount;
rt_uint8_t scanDmaChannel;
};
struct efm32_adc_control_single_t
{
rt_uint8_t count;
rt_uint8_t dmaChannel;
ADC_InitSingle_TypeDef *init;
};
struct efm32_adc_control_scan_t
{
rt_uint8_t count;
rt_uint8_t dmaChannel;
ADC_InitScan_TypeDef *init;
};
struct efm32_adc_control_t
{
rt_uint8_t mode;
struct efm32_adc_control_scan_t scan;
struct efm32_adc_control_single_t single;
};
struct efm32_adc_result_t
{
rt_uint8_t mode;
void *buffer;
};
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
#define ADC_MODE_SINGLE (0x01)
#define ADC_MODE_SCAN (0x02)
#define ADC_MODE_TAILGATE (0x04)
#define ADC_OP_SINGLE_REPEAT (0x10)
#define ADC_OP_SCAN_REPEAT (0x20)
#define ADC_MASK_MODE (0x0f)
#define ADC_MASK_OP (0xf0)
/* Exported functions ------------------------------------------------------- */
void rt_hw_adc_init(void);
#endif /*__DRV_ADC_H__ */
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