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esp_adc: added adc digital filter feature

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This commit is contained in:
Armando
2023-02-07 16:01:26 +08:00
committed by Armando (Dou Yiwen)
parent 648b1a41c6
commit 3afa671069
38 changed files with 1032 additions and 402 deletions
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35
components/esp_adc/adc_continuous.c
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@@ -28,6 +28,7 @@
#include "hal/adc_hal.h"
#include "hal/dma_types.h"
#include "esp_memory_utils.h"
#include "adc_continuous_internal.h"
//For DMA
#if SOC_GDMA_SUPPORTED
#include "esp_private/gdma.h"
@@ -51,40 +52,6 @@ extern portMUX_TYPE rtc_spinlock; //TODO: Will be placed in the appropriate posi
#define INTERNAL_BUF_NUM 5
typedef enum {
ADC_FSM_INIT,
ADC_FSM_STARTED,
} adc_fsm_t;
/*---------------------------------------------------------------
Continuous Mode Driverr Context
---------------------------------------------------------------*/
typedef struct adc_continuous_ctx_t {
uint8_t *rx_dma_buf; //dma buffer
adc_hal_dma_ctx_t hal; //hal context
#if SOC_GDMA_SUPPORTED
gdma_channel_handle_t rx_dma_channel; //dma rx channel handle
#elif CONFIG_IDF_TARGET_ESP32S2
spi_host_device_t spi_host; //ADC uses this SPI DMA
#elif CONFIG_IDF_TARGET_ESP32
i2s_port_t i2s_host; //ADC uses this I2S DMA
#endif
intr_handle_t dma_intr_hdl; //DMA Interrupt handler
RingbufHandle_t ringbuf_hdl; //RX ringbuffer handler
void* ringbuf_storage; //Ringbuffer storage buffer
void* ringbuf_struct; //Ringbuffer structure buffer
intptr_t rx_eof_desc_addr; //eof descriptor address of RX channel
adc_fsm_t fsm; //ADC continuous mode driver internal states
bool use_adc1; //1: ADC unit1 will be used; 0: ADC unit1 won't be used.
bool use_adc2; //1: ADC unit2 will be used; 0: ADC unit2 won't be used. This determines whether to acquire sar_adc2_mutex lock or not.
adc_atten_t adc1_atten; //Attenuation for ADC1. On this chip each ADC can only support one attenuation.
adc_atten_t adc2_atten; //Attenuation for ADC2. On this chip each ADC can only support one attenuation.
adc_hal_digi_ctrlr_cfg_t hal_digi_ctrlr_cfg; //Hal digital controller configuration
adc_continuous_evt_cbs_t cbs; //Callbacks
void *user_data; //User context
esp_pm_lock_handle_t pm_lock; //For power management
} adc_continuous_ctx_t;
#ifdef CONFIG_PM_ENABLE
//Only for deprecated API
extern esp_pm_lock_handle_t adc_digi_arbiter_lock;