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Add display interface abtraction layer

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This commit is contained in:
C47D 2022-02-10 11:31:12 -06:00
parent fc81c6da5a
commit bb83ea90cb
2 changed files with 128 additions and 0 deletions
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32
lvgl_tft/display_port.h
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@ -15,6 +15,16 @@ extern "C"
#include <stdint.h>
#include <stdbool.h>
#define CMD_WITHOUT_ARGS NULL
enum {
CMD_WIDTH_8BITS,
CMD_WIDTH_16BITS,
CMD_WIDTH_INVALID,
};
typedef uint8_t cmd_width_t;
/**
* Busy wait delay port
*
@ -56,6 +66,28 @@ void display_port_gpio_rst(lv_disp_drv_t *drv, uint8_t state);
*/
bool display_port_gpio_is_busy(lv_disp_drv_t *drv);
/**
* Send cmd to display
*
* @param drv Pointer to driver
* @param cmd Command to send
* @param cmd_width Width of the command (in bits) to be sent, see @ref cmd_width_t
* @param args Pointer to arguments, use CMD_WITHOUT_ARGS to send command without arguments
* @param args_len Arguments length (in bytes) to be sent
*/
void display_interface_send_cmd(lv_disp_drv_t *drv, uint32_t cmd, cmd_width_t cmd_width, void *args, size_t args_len);
/**
* Send (image) data to display
*
* User must call lv_disp_flush after the image is sent
*
* @param drv Pointer to driver
* @param data Pointer to data to be sent
* @param len Data length (in bytes) to be sent
*/
void display_interface_send_data(lv_disp_drv_t *drv, void *data, size_t len);
#ifdef __cplusplus
} /* extern "C" */
#endif