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lcd now supports 2 extra commands

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This commit is contained in:
Drath Vader
2026-09-30 13:51:05 +02:00
parent 106de77287
commit c764ce9367
2 changed files with 13 additions and 2 deletions
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2
include/lcd.h
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@@ -19,6 +19,8 @@ struct lcd_t {
typedef uint8_t lcd_glyph_t[8]; typedef uint8_t lcd_glyph_t[8];
void lcd_close(struct lcd_t *lcd); void lcd_close(struct lcd_t *lcd);
void lcd_reinit(struct lcd_t *lcd);
void lcd_splash(struct lcd_t *lcd);
void lcd_clear(struct lcd_t *lcd); void lcd_clear(struct lcd_t *lcd);
void lcd_set_contrast(struct lcd_t *lcd, uint8_t contrast); void lcd_set_contrast(struct lcd_t *lcd, uint8_t contrast);
void lcd_set_backlight(struct lcd_t *lcd, bool enabled); void lcd_set_backlight(struct lcd_t *lcd, bool enabled);

13
src/lcd.c
View File

@@ -3,12 +3,11 @@
#include <fcntl.h> #include <fcntl.h>
#include <stdarg.h> #include <stdarg.h>
#include <stdint.h> #include <stdint.h>
#include <stdio.h>
#include <string.h> #include <string.h>
#include <termios.h> #include <termios.h>
#include <unistd.h> #include <unistd.h>
#include <stdio.h>
#define MIN(a, b) ((a) < (b) ? (a) : (b)) #define MIN(a, b) ((a) < (b) ? (a) : (b))
static int lcd_open(struct lcd_t *lcd, const bool reopen) { static int lcd_open(struct lcd_t *lcd, const bool reopen) {
@@ -42,6 +41,16 @@ static void lcd_write(struct lcd_t *lcd, const uint8_t *cmdbuf, const uint16_t l
} }
} }
void lcd_reinit(struct lcd_t *lcd) {
constexpr uint8_t cmdbuf[] = {0xFE, 63};
lcd_write(lcd, cmdbuf, sizeof(cmdbuf));
}
void lcd_splash(struct lcd_t *lcd) {
constexpr uint8_t cmdbuf[] = {0xFE, 65};
lcd_write(lcd, cmdbuf, sizeof(cmdbuf));
}
void lcd_clear(struct lcd_t *lcd) { void lcd_clear(struct lcd_t *lcd) {
constexpr uint8_t cmdbuf[] = {0xFE, 88}; constexpr uint8_t cmdbuf[] = {0xFE, 88};
lcd_write(lcd, cmdbuf, sizeof(cmdbuf)); lcd_write(lcd, cmdbuf, sizeof(cmdbuf));