105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include "esp_err.h"
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#include "sensor.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Auto-focus modes.
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*
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* - AUTO: sensor runs its internal AF routine (continuous, if supported).
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* - MANUAL: AF is not running automatically; user triggers focus explicitly.
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*/
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typedef enum {
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ESP_CAMERA_AF_MODE_AUTO = 0,
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ESP_CAMERA_AF_MODE_MANUAL = 1,
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} esp_camera_af_mode_t;
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/**
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* @brief Auto-focus configuration.
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*
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* Notes:
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* - Some fields are sensor-dependent (e.g., manual position control).
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* - For sensors without AF hardware/firmware support, APIs return ESP_ERR_NOT_SUPPORTED.
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*/
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typedef struct {
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esp_camera_af_mode_t mode;
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/**
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* @brief Step size for manual stepping algorithms.
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*
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* Used by software search helpers and sensors that expose manual lens control.
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*/
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uint16_t step_size;
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/**
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* @brief Inclusive focus range limits for manual stepping algorithms.
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*/
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uint16_t range_min;
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uint16_t range_max;
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/**
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* @brief Default timeout used by AF operations, in milliseconds.
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*/
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uint32_t timeout_ms;
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} esp_camera_af_config_t;
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/**
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* @brief AF status values (sensor-specific raw values).
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*/
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typedef struct {
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uint8_t raw;
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bool focused;
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bool busy;
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} esp_camera_af_status_t;
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/**
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* @brief Return whether the attached sensor supports AF through this module.
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*/
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bool esp_camera_af_is_supported(const sensor_t *sensor);
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/**
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* @brief Initialize AF support for the attached sensor.
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*/
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esp_err_t esp_camera_af_init(sensor_t *sensor, const esp_camera_af_config_t *config);
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/**
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* @brief Change AF mode.
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*/
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esp_err_t esp_camera_af_set_mode(sensor_t *sensor, esp_camera_af_mode_t mode);
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/**
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* @brief Trigger a single autofocus cycle (if supported).
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*/
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esp_err_t esp_camera_af_trigger(sensor_t *sensor);
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/**
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* @brief Read current AF status.
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*/
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esp_err_t esp_camera_af_get_status(sensor_t *sensor, esp_camera_af_status_t *out_status);
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/**
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* @brief Wait for AF to finish or report focused.
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*
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* @param timeout_ms If 0, uses config timeout passed to esp_camera_af_init().
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*/
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esp_err_t esp_camera_af_wait(sensor_t *sensor, uint32_t timeout_ms, esp_camera_af_status_t *out_status);
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/**
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* @brief Set manual lens position.
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*
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* Some sensors (including OV5640 when using internal AF firmware only) may not expose a safe
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* manual lens position register via the public driver; in those cases this returns ESP_ERR_NOT_SUPPORTED.
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*/
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esp_err_t esp_camera_af_set_manual_position(sensor_t *sensor, uint16_t position);
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#ifdef __cplusplus
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}
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#endif
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