kopia lustrzana https://github.com/espressif/esp-idf
130 wiersze
7.1 KiB
C
130 wiersze
7.1 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2022 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 "soc/soc_caps.h"
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#include "hal/lcd_types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if SOC_LCD_RGB_SUPPORTED
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/**
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* @brief LCD RGB timing structure
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* @verbatim
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* Total Width
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* <--------------------------------------------------->
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* HSYNC width HBP Active Width HFP
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* <---><--><--------------------------------------><--->
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* ____ ____|_______________________________________|____|
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* |___| | | |
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* | | |
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* __| | | |
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* /|\ /|\ | | | |
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* | VSYNC| | | | |
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* |Width\|/ |__ | | |
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* | /|\ | | | |
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* | VBP | | | | |
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* | \|/_____|_________|_______________________________________| |
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* | /|\ | | / / / / / / / / / / / / / / / / / / / | |
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* | | | |/ / / / / / / / / / / / / / / / / / / /| |
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* Total | | | |/ / / / / / / / / / / / / / / / / / / /| |
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* Height | | | |/ / / / / / / / / / / / / / / / / / / /| |
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* |Active| | |/ / / / / / / / / / / / / / / / / / / /| |
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* |Heigh | | |/ / / / / / Active Display Area / / / /| |
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* | | | |/ / / / / / / / / / / / / / / / / / / /| |
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* | | | |/ / / / / / / / / / / / / / / / / / / /| |
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* | | | |/ / / / / / / / / / / / / / / / / / / /| |
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* | | | |/ / / / / / / / / / / / / / / / / / / /| |
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* | | | |/ / / / / / / / / / / / / / / / / / / /| |
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* | \|/_____|_________|_______________________________________| |
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* | /|\ | |
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* | VFP | | |
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* \|/ \|/_____|______________________________________________________|
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* @endverbatim
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*/
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typedef struct {
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unsigned int pclk_hz; /*!< Frequency of pixel clock */
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unsigned int h_res; /*!< Horizontal resolution, i.e. the number of pixels in a line */
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unsigned int v_res; /*!< Vertical resolution, i.e. the number of lines in the frame */
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unsigned int hsync_pulse_width; /*!< Horizontal sync width, unit: PCLK period */
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unsigned int hsync_back_porch; /*!< Horizontal back porch, number of PCLK between hsync and start of line active data */
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unsigned int hsync_front_porch; /*!< Horizontal front porch, number of PCLK between the end of active data and the next hsync */
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unsigned int vsync_pulse_width; /*!< Vertical sync width, unit: number of lines */
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unsigned int vsync_back_porch; /*!< Vertical back porch, number of invalid lines between vsync and start of frame */
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unsigned int vsync_front_porch; /*!< Vertical front porch, number of invalid lines between then end of frame and the next vsync */
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struct {
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unsigned int hsync_idle_low: 1; /*!< The hsync signal is low in IDLE state */
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unsigned int vsync_idle_low: 1; /*!< The vsync signal is low in IDLE state */
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unsigned int de_idle_high: 1; /*!< The de signal is high in IDLE state */
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unsigned int pclk_active_neg: 1; /*!< Whether the display data is clocked out at the falling edge of PCLK */
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unsigned int pclk_idle_high: 1; /*!< The PCLK stays at high level in IDLE phase */
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} flags;
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} esp_lcd_rgb_timing_t;
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/**
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* @brief Type of RGB LCD panel event data
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*/
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typedef struct {
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} esp_lcd_rgb_panel_event_data_t;
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/**
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* @brief Declare the prototype of the function that will be invoked when panel IO finishes transferring color data
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*
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* @param[in] panel LCD panel handle, returned from `esp_lcd_new_rgb_panel`
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* @param[in] edata Panel event data, fed by driver
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* @param[in] user_ctx User data, passed from `esp_lcd_rgb_panel_config_t`
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* @return Whether a high priority task has been waken up by this function
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*/
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typedef bool (*esp_lcd_rgb_panel_frame_trans_done_cb_t)(esp_lcd_panel_handle_t panel, esp_lcd_rgb_panel_event_data_t *edata, void *user_ctx);
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/**
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* @brief LCD RGB panel configuration structure
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*/
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typedef struct {
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lcd_clock_source_t clk_src; /*!< Clock source for the RGB LCD peripheral */
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esp_lcd_rgb_timing_t timings; /*!< RGB timing parameters */
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size_t data_width; /*!< Number of data lines */
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size_t sram_trans_align; /*!< Alignment for framebuffer that allocated in SRAM */
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size_t psram_trans_align; /*!< Alignment for framebuffer that allocated in PSRAM */
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int hsync_gpio_num; /*!< GPIO used for HSYNC signal */
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int vsync_gpio_num; /*!< GPIO used for VSYNC signal */
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int de_gpio_num; /*!< GPIO used for DE signal, set to -1 if it's not used */
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int pclk_gpio_num; /*!< GPIO used for PCLK signal */
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int data_gpio_nums[SOC_LCD_RGB_DATA_WIDTH]; /*!< GPIOs used for data lines */
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int disp_gpio_num; /*!< GPIO used for display control signal, set to -1 if it's not used */
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esp_lcd_rgb_panel_frame_trans_done_cb_t on_frame_trans_done; /*!< Callback invoked when one frame buffer has transferred done */
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void *user_ctx; /*!< User data which would be passed to on_frame_trans_done's user_ctx */
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struct {
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unsigned int disp_active_low: 1; /*!< If this flag is enabled, a low level of display control signal can turn the screen on; vice versa */
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unsigned int relax_on_idle: 1; /*!< If this flag is enabled, the host won't refresh the LCD if nothing changed in host's frame buffer (this is usefull for LCD with built-in GRAM) */
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unsigned int fb_in_psram: 1; /*!< If this flag is enabled, the frame buffer will be allocated from PSRAM preferentially */
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} flags;
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} esp_lcd_rgb_panel_config_t;
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/**
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* @brief Create RGB LCD panel
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*
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* @param rgb_panel_config RGB panel configuration
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* @param ret_panel Returned LCD panel 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_ERR_NOT_FOUND if no free RGB panel is available
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* - ESP_OK on success
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*/
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esp_err_t esp_lcd_new_rgb_panel(const esp_lcd_rgb_panel_config_t *rgb_panel_config, esp_lcd_panel_handle_t *ret_panel);
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#endif // SOC_LCD_RGB_SUPPORTED
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#ifdef __cplusplus
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}
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#endif
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