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88 lines
3.4 KiB
C
88 lines
3.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <stdbool.h>
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#include "esp_err.h"
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#include "esp_lcd_types.h"
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#include "driver/i2c_types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef uint32_t esp_lcd_i2c_bus_handle_t; /*!< Type of LCD I2C bus handle */
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/**
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* @brief Panel IO configuration structure, for I2C interface
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*
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*/
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typedef struct {
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uint32_t dev_addr; /*!< I2C device address */
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esp_lcd_panel_io_color_trans_done_cb_t on_color_trans_done; /*!< Callback invoked when color data transfer has finished */
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void *user_ctx; /*!< User private data, passed directly to on_color_trans_done's user_ctx */
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size_t control_phase_bytes; /*!< I2C LCD panel will encode control information (e.g. D/C selection) into control phase, in several bytes */
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unsigned int dc_bit_offset; /*!< Offset of the D/C selection bit in control phase */
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int lcd_cmd_bits; /*!< Bit-width of LCD command */
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int lcd_param_bits; /*!< Bit-width of LCD parameter */
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struct {
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unsigned int dc_low_on_data: 1; /*!< If this flag is enabled, DC line = 0 means transfer data, DC line = 1 means transfer command; vice versa */
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unsigned int disable_control_phase: 1; /*!< If this flag is enabled, the control phase isn't used */
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} flags; /*!< Extra flags to fine-tune the I2C device */
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uint32_t scl_speed_hz; /*!< I2C LCD SCL frequency (hz) */
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} esp_lcd_panel_io_i2c_config_t;
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/**
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* @brief Create LCD panel IO handle, for I2C interface in legacy implementation
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*
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* @param[in] bus I2C bus handle, (in uint32_t)
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* @param[in] io_config IO configuration, for I2C interface
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* @param[out] ret_io Returned IO handle
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*
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* @note Please don't call this function in your project directly. Please call `esp_lcd_new_panel_to_i2c` instead.
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*
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* @return
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* - ESP_ERR_INVALID_ARG if parameter is invalid
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* - ESP_ERR_NO_MEM if out of memory
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* - ESP_OK on success
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*/
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esp_err_t esp_lcd_new_panel_io_i2c_v1(uint32_t bus, const esp_lcd_panel_io_i2c_config_t *io_config, esp_lcd_panel_io_handle_t *ret_io);
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/**
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* @brief Create LCD panel IO handle, for I2C interface in new implementation
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*
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* @param[in] bus I2C bus handle, (in i2c_master_dev_handle_t)
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* @param[in] io_config IO configuration, for I2C interface
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* @param[out] ret_io Returned IO handle
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*
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* @note Please don't call this function in your project directly. Please call `esp_lcd_new_panel_to_i2c` instead.
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*
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* @return
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* - ESP_ERR_INVALID_ARG if parameter is invalid
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* - ESP_ERR_NO_MEM if out of memory
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* - ESP_OK on success
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*/
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esp_err_t esp_lcd_new_panel_io_i2c_v2(i2c_master_bus_handle_t bus, const esp_lcd_panel_io_i2c_config_t *io_config, esp_lcd_panel_io_handle_t *ret_io);
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/**
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* @brief Create LCD panel IO handle
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*
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* @param[in] bus I2C bus handle
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* @param[in] io_config IO configuration, for I2C interface
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* @param[out] ret_io Returned IO handle
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* @return
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* - ESP_ERR_INVALID_ARG if parameter is invalid
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* - ESP_ERR_NO_MEM if out of memory
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* - ESP_OK on success
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*/
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#define esp_lcd_new_panel_io_i2c(bus, io_config, ret_io) _Generic((bus), \
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i2c_master_bus_handle_t : esp_lcd_new_panel_io_i2c_v2, \
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default : esp_lcd_new_panel_io_i2c_v1) (bus, io_config, ret_io) \
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#ifdef __cplusplus
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}
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#endif
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