esp-idf/components/esp_driver_cam/include/esp_cam_ctlr.h

138 lines
3.8 KiB
C

/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include "esp_err.h"
#include "esp_cam_ctlr_types.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Enable ESP CAM controller
*
* @param[in] handle ESP CAM controller handle
*
* @return
* - ESP_OK
* - ESP_ERR_INVALID_ARG: Invalid argument
* - ESP_ERR_INVALID_STATE: Invalid state
*/
esp_err_t esp_cam_ctlr_enable(esp_cam_ctlr_handle_t handle);
/**
* @brief Start ESP CAM controller
*
* @param[in] handle ESP CAM controller handle
*
* @return
* - ESP_OK
* - ESP_ERR_INVALID_ARG: Invalid argument
* - ESP_ERR_INVALID_STATE: Invalid state
*/
esp_err_t esp_cam_ctlr_start(esp_cam_ctlr_handle_t handle);
/**
* @brief Stop ESP CAM controller
*
* @param[in] handle ESP CAM controller handle
*
* @return
* - ESP_OK
* - ESP_ERR_INVALID_ARG: Invalid argument
* - ESP_ERR_INVALID_STATE: Invalid state
*/
esp_err_t esp_cam_ctlr_stop(esp_cam_ctlr_handle_t handle);
/**
* @brief Disable ESP CAM controller
*
* @param[in] handle ESP CAM controller handle
*
* @return
* - ESP_OK
* - ESP_ERR_INVALID_ARG: Invalid argument
* - ESP_ERR_INVALID_STATE: Invalid state
*/
esp_err_t esp_cam_ctlr_disable(esp_cam_ctlr_handle_t handle);
/**
* @brief Receive data to the given transaction
*
* @param[in] handle ESP CAM controller handle
* @param[in] trans ESP CAM controller transaction type
* @param[in] timeout_ms Timeout in ms
*
* @return
* - ESP_OK
* - ESP_ERR_INVALID_ARG: Invalid argument
* - ESP_ERR_INVALID_STATE: Invalid state
*/
esp_err_t esp_cam_ctlr_receive(esp_cam_ctlr_handle_t handle, esp_cam_ctlr_trans_t *trans, uint32_t timeout_ms);
/**
* @brief Delete ESP CAM controller handle
*
* @param[in] handle ESP CAM controller handle
*
* @return
* - ESP_OK
* - ESP_ERR_INVALID_ARG: Invalid argument
* - ESP_ERR_INVALID_STATE: Invalid state
*/
esp_err_t esp_cam_ctlr_del(esp_cam_ctlr_handle_t handle);
/**
* @brief Register ESP CAM controller event callbacks
*
* @param[in] handle ESP CAM controller handle
* @param[in] cbs ESP CAM controller event callbacks
* @param[in] user_data User data
* @return
* - ESP_OK
* - ESP_ERR_INVALID_ARG: Invalid argument
* - ESP_ERR_INVALID_STATE: Invalid state
*/
esp_err_t esp_cam_ctlr_register_event_callbacks(esp_cam_ctlr_handle_t handle, const esp_cam_ctlr_evt_cbs_t *cbs, void *user_data);
/**
* @brief Get ESP CAM controller internal malloced backup buffer(s) addr
*
* @note Generally, data in internal buffer is ready when `on_trans_finished` event
*
* @param[in] handle ESP CAM controller handle
* @param[in] fb_num Number of frame buffer(s) to get. This value must be the same as the number of the followed fbN parameters
* @param[out] fb0 Address of the frame buffer 0 (first frame buffer)
* @param[out] ... List of other frame buffers if any
*
* @return
* - ESP_OK
* - ESP_ERR_INVALID_ARG: Invalid argument
* - ESP_ERR_INVALID_STATE: Invalid driver state
*/
esp_err_t esp_cam_ctlr_get_frame_buffer(esp_cam_ctlr_handle_t handle, uint32_t fb_num, const void **fb0, ...);
/**
* @brief Get ESP CAM controller internal backup buffer length
*
* @param[in] handle ESP CAM controller handle
* @param[out] ret_fb_len Optional, The size of each frame buffer, in bytes.
*
* @return
* - ESP_OK
* - ESP_ERR_INVALID_ARG: NULL ptr
* - ESP_ERR_INVALID_STATE: Invalid driver state
*/
esp_err_t esp_cam_ctlr_get_frame_buffer_len(esp_cam_ctlr_handle_t handle, size_t *ret_fb_len);
#ifdef __cplusplus
}
#endif