lcd: add esp_lcd component

* Support intel 8080 LCD panel IO on ESP32-S3
* Support RGB LCD panel on ESP32-S3
* Support SPI && I2C LCD panel IO on all esp chips

components/esp_lcd/interface/esp_lcd_panel_io_interface.h

@@ -0,0 +1,66 @@
+/*
+ * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#pragma once
+
+#include <stdbool.h>
+#include "esp_err.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 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] lcd_cmd_bits Length of LCD command, in bits (e.g. 8 bits or 16 bits)
+     * @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, int lcd_cmd_bits, 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] lcd_cmd_bits Length of LCD command, in bits (e.g. 8 bits or 16 bits)
+     * @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, int lcd_cmd_bits, 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);
+};
+
+#ifdef __cplusplus
+}
+#endif