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/*
* Copyright (c) 2006-2026, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file adc_v2_internal.h
* @brief Internal ADC V2 framework declarations.
*/
#ifndef __ADC_V2_INTERNAL_H__
#define __ADC_V2_INTERNAL_H__
#include <rtconfig.h>
#include <drivers/adc_v2.h>
#if defined(RT_ADC_USING_TRIGGER)
/**
* @brief Initialize the cached ADC trigger state to the default software-started mode.
* @param device Pointer to the ADC device object.
*/
void adc_trigger_init(rt_adc_device_t device);
/**
* @brief Preconfigure the active device-level ADC trigger before hardware configuration.
* @param device Pointer to the ADC device object.
* @return RT_EOK on success, otherwise an RT-Thread error code.
*/
rt_err_t adc_trigger_preconfig(rt_adc_device_t device);
/**
* @brief Get the active device-level ADC trigger configuration.
* @param device Pointer to the ADC device object.
* @return Pointer to the cached trigger configuration, or RT_NULL when no hardware trigger is configured.
*/
const struct rt_adc_trigger_cfg *adc_trigger_active_get(rt_adc_device_t device);
/**
* @brief Trigger-source lifecycle actions used after ADC hardware is armed.
*/
enum adc_trigger_source_action
{
ADC_TRIGGER_SOURCE_START = 0, /**< Start the active trigger source. */
ADC_TRIGGER_SOURCE_STOP /**< Stop the previously started trigger source. */
};
/**
* @brief Control the active trigger source around an armed ADC conversion path.
* @param device Pointer to the ADC device object.
* @param action Trigger-source lifecycle action.
* @param started Pointer to the trigger-start state.
* @param current_result Transfer result before trigger stop, ignored for start.
* @return For start, trigger-source start result; for stop, @p current_result unless trigger stop is the first
* observed failure.
*/
rt_err_t adc_trigger_source_control(rt_adc_device_t device, enum adc_trigger_source_action action,
rt_bool_t *started, rt_err_t current_result);
#endif /* defined(RT_ADC_USING_TRIGGER) */
#endif /* __ADC_V2_INTERNAL_H__ */
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