esp-idf/components/esp_lcd/interface/esp_lcd_panel_io_interface.h

94 lines
3.7 KiB
C

/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <stdbool.h>
#include "esp_err.h"
#include "esp_lcd_panel_io.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct esp_lcd_panel_io_t esp_lcd_panel_io_t; /*!< Type of LCD panel IO */
/**
* @brief LCD panel IO interface
*/
struct esp_lcd_panel_io_t {
/**
* @brief Transmit LCD command and receive corresponding parameters
*
* @note This is the panel-specific interface called by function `esp_lcd_panel_io_rx_param()`.
*
* @param[in] io LCD panel IO handle, which is created by other factory API like `esp_lcd_new_panel_io_spi()`
* @param[in] lcd_cmd The specific LCD command, set to -1 if no command needed
* @param[out] param Buffer for the command data
* @param[in] param_size Size of `param` buffer
* @return
* - ESP_ERR_INVALID_ARG if parameter is invalid
* - ESP_ERR_NOT_SUPPORTED if read is not supported by transport
* - ESP_OK on success
*/
esp_err_t (*rx_param)(esp_lcd_panel_io_t *io, int lcd_cmd, void *param, size_t param_size);
/**
* @brief Transmit LCD command and corresponding parameters
*
* @note This is the panel-specific interface called by function `esp_lcd_panel_io_tx_param()`.
*
* @param[in] io LCD panel IO handle, which is created by other factory API like `esp_lcd_new_panel_io_spi()`
* @param[in] lcd_cmd The specific LCD command
* @param[in] param Buffer that holds the command specific parameters, set to NULL if no parameter is needed for the command
* @param[in] param_size Size of `param` in memory, in bytes, set to zero if no parameter is needed for the command
* @return
* - ESP_ERR_INVALID_ARG if parameter is invalid
* - ESP_OK on success
*/
esp_err_t (*tx_param)(esp_lcd_panel_io_t *io, int lcd_cmd, const void *param, size_t param_size);
/**
* @brief Transmit LCD RGB data
*
* @note This is the panel-specific interface called by function `esp_lcd_panel_io_tx_color()`.
*
* @param[in] io LCD panel IO handle, which is created by other factory API like `esp_lcd_new_panel_io_spi()`
* @param[in] lcd_cmd The specific LCD command
* @param[in] color Buffer that holds the RGB color data
* @param[in] color_size Size of `color` in memory, in bytes
* @return
* - ESP_ERR_INVALID_ARG if parameter is invalid
* - ESP_OK on success
*/
esp_err_t (*tx_color)(esp_lcd_panel_io_t *io, int lcd_cmd, const void *color, size_t color_size);
/**
* @brief Destory LCD panel IO handle (deinitialize all and free resource)
*
* @param[in] io LCD panel IO handle, which is created by other factory API like `esp_lcd_new_panel_io_spi()`
* @return
* - ESP_ERR_INVALID_ARG if parameter is invalid
* - ESP_OK on success
*/
esp_err_t (*del)(esp_lcd_panel_io_t *io);
/**
* @brief Register LCD panel IO callbacks
*
* @param[in] io LCD panel IO handle, which is created by factory API like `esp_lcd_new_panel_io_spi()`
* @param[in] cbs structure with all LCD panel IO callbacks
* @param[in] user_ctx User private data, passed directly to callback's user_ctx
* @return
* - ESP_ERR_INVALID_ARG if parameter is invalid
* - ESP_OK on success
*/
esp_err_t (*register_event_callbacks)(esp_lcd_panel_io_t *io, const esp_lcd_panel_io_callbacks_t *cbs, void *user_ctx);
};
#ifdef __cplusplus
}
#endif