kernel/src/tty/cursor.c


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#include <sys.h>

#include "cursor.h"
#include "term.h"

void cursor_enable(void) {
    cursor_setsize(13, 16);
}

void cursor_disable(void) {
    outb(0x3D4, 0x0A);
	outb(0x3D5, 0x20);
}

void cursor_setsize(uint8_t start, uint8_t end) {
    outb(0x3D4, 0x0A);
    outb(0x3D5, (inb(0x3D5) & 0xC0) | start);
 
    outb(0x3D4, 0x0B);
    outb(0x3D5, (inb(0x3D5) & 0xE0) | end);
}

void cursor_setpos(uint8_t x, uint8_t y) {
;	uint16_t pos = y * TERM_W + x;
 
	outb(0x3D4, 0x0F);
	outb(0x3D5, (uint8_t) (pos & 0xFF));
	outb(0x3D4, 0x0E);
	outb(0x3D5, (uint8_t) ((pos >> 8) & 0xFF));
}