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50 lines
1.1 KiB
50 lines
1.1 KiB
5 years ago
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#pragma once
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include "esp_err.h"
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#include "esp_intr_alloc.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/semphr.h"
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#include "freertos/task.h"
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#include "esp_camera.h"
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#include "sensor.h"
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#include "esp_system.h"
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#if ESP_IDF_VERSION_MAJOR >= 4 // IDF 4+
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#if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
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#include "esp32/rom/lldesc.h"
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#else
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#error Target CONFIG_IDF_TARGET is not supported
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#endif
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#else // ESP32 Before IDF 4.0
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#include "rom/lldesc.h"
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#endif
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typedef union {
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struct {
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uint8_t sample2;
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uint8_t unused2;
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uint8_t sample1;
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uint8_t unused1;
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};
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uint32_t val;
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} dma_elem_t;
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typedef enum {
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/* camera sends byte sequence: s1, s2, s3, s4, ...
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* fifo receives: 00 s1 00 s2, 00 s2 00 s3, 00 s3 00 s4, ...
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*/
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SM_0A0B_0B0C = 0,
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/* camera sends byte sequence: s1, s2, s3, s4, ...
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* fifo receives: 00 s1 00 s2, 00 s3 00 s4, ...
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*/
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SM_0A0B_0C0D = 1,
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/* camera sends byte sequence: s1, s2, s3, s4, ...
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* fifo receives: 00 s1 00 00, 00 s2 00 00, 00 s3 00 00, ...
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*/
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SM_0A00_0B00 = 3,
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} i2s_sampling_mode_t;
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