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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-04-20 tyustli the first version.
*
*/
#include <rtthread.h>
#ifdef BSP_USING_ADC
#if !defined(BSP_USING_ADC1) && !defined(BSP_USING_ADC2)
#error "Please define at least one BSP_USING_ADCx"
#endif
#if (defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
#error "Please don't define 'FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL'!"
#endif
#define LOG_TAG "drv.adc"
#include <drv_log.h>
#include "drv_adc.h"
#include "fsl_adc.h"
#include <rtdevice.h>
static rt_err_t imxrt_hp_adc_enabled(struct rt_adc_device *device, rt_uint32_t channel, rt_bool_t enabled)
{
return RT_EOK;
}
static rt_err_t imxrt_hp_adc_convert(struct rt_adc_device *device, rt_uint32_t channel, rt_uint32_t *value)
{
adc_channel_config_t adc_channel;
ADC_Type *base;
base = (ADC_Type *)(device->parent.user_data);
adc_channel.channelNumber = channel;
adc_channel.enableInterruptOnConversionCompleted = false;
ADC_SetChannelConfig(base, 0, &adc_channel);
while (0U == ADC_GetChannelStatusFlags(base, 0))
{
continue;
}
*value = ADC_GetChannelConversionValue(base, 0);
return RT_EOK;
}
static struct rt_adc_ops imxrt_adc_ops =
{
.enabled = imxrt_hp_adc_enabled,
.convert = imxrt_hp_adc_convert,
};
#if defined(BSP_USING_ADC1)
static adc_config_t ADC1_config_value;
static struct rt_adc_device adc1_device;
#endif /* BSP_USING_ADC1 */
#if defined(BSP_USING_ADC2)
static adc_config_t ADC2_config_value;
static struct rt_adc_device adc2_device;
#endif /* BSP_USING_ADC2 */
int rt_hw_adc_init(void)
{
int result = RT_EOK;
#if defined(BSP_USING_ADC1)
ADC_GetDefaultConfig(&ADC1_config_value);
ADC_Init(ADC1, &ADC1_config_value);
#if !(defined(FSL_FEATURE_ADC_SUPPORT_HARDWARE_TRIGGER_REMOVE) && FSL_FEATURE_ADC_SUPPORT_HARDWARE_TRIGGER_REMOVE)
ADC_EnableHardwareTrigger(ADC1, false);
#endif
ADC_DoAutoCalibration(ADC1);
result = rt_hw_adc_register(&adc1_device, "adc1", &imxrt_adc_ops, ADC1);
if (result != RT_EOK)
{
LOG_E("register adc1 device failed error code = %d\n", result);
}
#endif /* BSP_USING_ADC1 */
#if defined(BSP_USING_ADC2)
ADC_GetDefaultConfig(&ADC2_config_value);
ADC_Init(ADC2, &ADC2_config_value);
#if !(defined(FSL_FEATURE_ADC_SUPPORT_HARDWARE_TRIGGER_REMOVE) && FSL_FEATURE_ADC_SUPPORT_HARDWARE_TRIGGER_REMOVE)
ADC_EnableHardwareTrigger(ADC2, false);
#endif
ADC_DoAutoCalibration(ADC2);
result = rt_hw_adc_register(&adc2_device, "adc2", &imxrt_adc_ops, ADC2);
if (result != RT_EOK)
{
LOG_E("register adc2 device failed error code = %d\n", result);
}
#endif /* BSP_USING_ADC2 */
return result;
}
INIT_DEVICE_EXPORT(rt_hw_adc_init);
#endif /* BSP_USING_ADC */
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