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Espresso 0.0.2a

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This commit is contained in:
David Goeke
2025-10-20 21:57:30 -05:00
parent 102d517097
commit ff6cba1164
59 changed files with 29272 additions and 773 deletions
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32
drivers/irq.c
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@ -1,13 +1,13 @@
#include <stdio.h>
#include <drivers/ps2_keyboard.h>
#include <drivers/pit.h>
#include <port_io.h>
#include <drivers/irq.h>
#define NUM_IRQS 0x90
irq_func_t func_list[NUM_IRQS];
irq_func_t aux_func_list[NUM_IRQS];
@ -15,9 +15,10 @@ static volatile uint32_t num_irqs_missed = 0;
void irq_init(void)
{
memset(func_list, 0x0, NUM_IRQS);
memset(aux_func_list, 0x0, NUM_IRQS);
for (int i = 0; i < NUM_IRQS; i++)
{
func_list[i] = 0x0;
}
set_irq_handler(0, (irq_func_t*)pit_handler);
set_irq_handler(1, (irq_func_t*)keyboard_handler);
}
@ -29,10 +30,7 @@ void irq_handler(uint8_t irq_number)
if (func_list[irq_number])
{
func_list[irq_number]();
}
else if (aux_func_list[irq_number])
{
aux_func_list[irq_number]();
outb(0x20, 0x20); /* Acknowledge the IRQ to PIC */
}
else
{
@ -48,21 +46,3 @@ void set_irq_handler(uint32_t num, irq_func_t* handler)
func_list[num] = (irq_func_t)handler;
}
}
void add_irq_handler(uint32_t num, irq_func_t* handler)
{
if (num < NUM_IRQS)
{
if (func_list[num] != 0x0)
{
if (aux_func_list[num] == 0x0)
{
aux_func_list[num] = (irq_func_t)handler;
}
return;
}
func_list[num] = (irq_func_t)handler;
}
}