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FIX: Replace blocking k_beep with an asynchronous k_beep

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boreddevnl
2026-03-16 17:22:42 +01:00
parent a4f16b0604
commit d824b4610a
4 changed files with 31 additions and 13 deletions
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27
src/core/kutils.c
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@@ -113,14 +113,35 @@ void k_shutdown(void) {
outw(0x4004, 0x3400); // VirtualBox fallback
}
volatile uint64_t beep_end_tick = 0;
bool beep_active = false;
void k_beep(int freq, int ms) {
if (freq <= 0) return;
if (freq <= 0) {
outb(0x61, inb(0x61) & 0xFC);
beep_active = false;
return;
}
int div = 1193180 / freq;
outb(0x43, 0xB6);
outb(0x42, div & 0xFF);
outb(0x42, (div >> 8) & 0xFF);
outb(0x61, inb(0x61) | 0x03);
k_sleep(ms);
outb(0x61, inb(0x61) & 0xFC);
uint32_t ticks = ms / 16;
if (ticks == 0 && ms > 0) ticks = 1;
extern volatile uint64_t kernel_ticks;
beep_end_tick = kernel_ticks + ticks;
beep_active = true;
}
void k_beep_process(void) {
if (beep_active) {
extern volatile uint64_t kernel_ticks;
if (kernel_ticks >= beep_end_tick) {
outb(0x61, inb(0x61) & 0xFC);
beep_active = false;
}
}
}

2
src/core/kutils.h
View File

@@ -6,6 +6,7 @@
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
// Kernel string utilities
void k_memset(void *dest, int val, size_t len);
@@ -23,5 +24,6 @@ void k_sleep(int ms);
void k_reboot(void);
void k_shutdown(void);
void k_beep(int freq, int ms);
void k_beep_process(void);
#endif