72 lines
1.4 KiB
C
72 lines
1.4 KiB
C
#ifndef LCD_HD44780_H_
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#define LCD_HD44780_H_
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#include <stdint.h>
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// bit definetions
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#define LCD_HD44780_RS 0
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#define LCD_HD44780_RW 1
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#define LCD_HD44780_E 2
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#define LCD_HD44780_WRITE 0
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#define LCD_HD44780_READ 1
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typedef enum {
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LCD_BITMODE_8BIT,
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LCD_BITMODE_4BIT,
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}lcd_hd44780_bitmode;
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typedef enum {
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LCD_HD44780_CLEAR_DISP = 0x1,
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LCD_HD44780_RETURN_HOME = 0x2,
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LCD_HD44780_ENTRY_MODE = 0x3,
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LCD_HD44780_DISP_ONOFF_CTL = 0x4,
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LCD_HD44780_CURSOR_SHIFT = 0x6,
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}hd44780_cmd_t;
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typedef enum{
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LCD_HD44780_GET = 0,
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LCD_HD44780_SET = 1,
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}hd44780_setGet_t;
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typedef enum{
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LCD_HD44780_INSTRUCTION = 0,
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LCD_HD44780_DATA = 1,
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}hd44780_InstData_t;
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typedef struct {
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uint8_t data_bus : 8;
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hd44780_setGet_t rw_pin : 1;
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uint8_t e_pin : 1;
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hd44780_InstData_t rs_pin :1 ;
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}hd44780_gpioset_t;
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typedef int (*setGet_Gpio_Event_fpt)(hd44780_gpioset_t *data_input, uint8_t set_get);//reentrant;
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typedef int (*wait_ms_Event_fpt)(uint32_t delay_ms);//reentrant;
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typedef struct{
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void *DataGpio;
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void *SettingsGpio;
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setGet_Gpio_Event_fpt setGetGpio_event;
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wait_ms_Event_fpt wait_event;
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lcd_hd44780_bitmode bit_mode;
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hd44780_gpioset_t gpio_data;
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}lcd_hd44780_t;
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void lcd_hd44780_init(lcd_hd44780_t *inst,lcd_hd44780_bitmode bit_mode);
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void lcd_hd44780_regGpioEvt(lcd_hd44780_t *inst, setGet_Gpio_Event_fpt getGpioEvt_fpt);
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void lcd_hd44780_regWaitEvt(lcd_hd44780_t *inst, wait_ms_Event_fpt waitEvt_fpt);
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#endif /*LCD_HD44780_H_*/
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