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added proper timing and key assignment in key press/release handler

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This commit is contained in:
shockrah 2019-12-05 01:31:05 -08:00
parent b2d4a5ec1b
commit 1af2fd3c52
2 changed files with 9 additions and 8 deletions
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8
kbd.c
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@ -53,14 +53,14 @@ void kbd_read_key(struct cpu_reg_state* cpu) {
u8 scancode = serial_read_byte(KBD_PORT);
if(scancode & 0x80) {
// Key released
kbd_state &= KBD_RELEASE;
kbd_key = keymap[scancode & 0x7f]; // clamp to 127 as the max val(gcc is anoying)
kbd_state = KBD_RELEASE;
kbd_time = pit_timer_ticks;
}
else {
// Key pressed
kbd_key = keymap[scancode & 0x7f]; // clamp to 127 as the max val(gcc is anoying)
kbd_state = kbd_state & !KBD_RELEASE & KBD_PRESS;
//printf("@");printhex(pit_timer_ticks);
//printf("diff:"); printhex(pit_timer_ticks - kbd_time);
kbd_state = KBD_PRESS;
kbd_time = pit_timer_ticks;
}
}

9
kbd.h
View File

@ -2,16 +2,17 @@
#define KBD_H
#include "types.h"
#include "interrupts.h"
#include "framebuffer.h"
#define KBD_PORT 0x60
#define KBD_PRESS 0b00000001
#define KBD_RELEASE 0b00000010
#define KBD_SHIFT 0b00000100
#define KBD_PRESS 1
#define KBD_WAITING 2
#define KBD_RELEASE 0x80
char kbd_key;
u8 kbd_state;
u8 kbd_time;
u32 kbd_time;
void kbd_install_keyboard(void);