94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
#ifndef DISPLAY_PORT_H_
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#define DISPLAY_PORT_H_
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#ifdef LV_LVGL_H_INCLUDE_SIMPLE
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#include "lvgl.h"
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#else
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#include "lvgl/lvgl.h"
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#endif
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#include <stdint.h>
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#include <stdbool.h>
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enum {
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CMD_WIDTH_8BITS,
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CMD_WIDTH_16BITS,
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CMD_WIDTH_INVALID,
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};
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typedef uint8_t cmd_width_t;
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/**
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* Busy wait delay port
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*
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* @param drv Pointer to driver See @ref lv_disp_drv_t
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* @param delay_ms Delay duration in milliseconds
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*/
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void display_port_delay(lv_disp_drv_t *drv, uint32_t delay_ms);
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/**
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* Backlight control port
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*
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* @param drv Pointer to driver See @ref lv_disp_drv_t
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* @param state State of the backlight signal
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*/
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void display_port_backlight(lv_disp_drv_t *drv, uint8_t state);
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/**
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* DC signal control port
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*
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* @param drv Pointer to driver See @ref lv_disp_drv_t
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* @param state State of the DC signal, 1 for logic high, 0 for logic low
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*/
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void display_port_gpio_dc(lv_disp_drv_t *drv, uint8_t state);
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/**
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* Hardware reset control port
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*
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* @param drv Pointer to driver See @ref lv_disp_drv_t
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* @param state State of the reset signal, 1 for logic high, 0 for logic low
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*/
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void display_port_gpio_rst(lv_disp_drv_t *drv, uint8_t state);
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/**
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* Display is busy port
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*
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* @param drv Pointer to driver See @ref lv_disp_drv_t
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*
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* @retval Returns false when display is not busy, true otherwise.
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*/
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bool display_port_gpio_is_busy(lv_disp_drv_t *drv);
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/**
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* Send cmd to display
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*
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* @param drv Pointer to driver
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* @param cmd Command to send
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* @param cmd_width Width of the command (in bits) to be sent, see @ref cmd_width_t
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* @param args Pointer to arguments, use NULL to send command without arguments
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* @param args_len Arguments length (in bytes) to be sent
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*/
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void display_interface_send_cmd(lv_disp_drv_t *drv, uint32_t cmd, cmd_width_t cmd_width, void *args, size_t args_len);
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/**
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* Send (image) data to display
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*
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* User must call lv_disp_flush after the image is sent
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*
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* @param drv Pointer to driver
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* @param data Pointer to data to be sent
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* @param len Data length (in bytes) to be sent
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*/
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void display_interface_send_data(lv_disp_drv_t *drv, void *data, size_t len);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif
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