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Added ISRs and IRQs drivers and set up all interrupts in assembly, however the does not work, yet

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ice-bit
2019-07-05 18:25:58 +02:00
parent 1aa6963e84
commit bb78281aaf
10 changed files with 385 additions and 2 deletions
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21
kernel/drivers/idt.h
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@@ -23,6 +23,27 @@
// Reserved bits in IDT entries
#define IDT_FLAG_RESERVED 0x0E
// PIC
#define PIC1 0x20 // I/O address for master PIC
#define PIC2 0xA0 // I/O address for slave PIC
#define PIC1_COMMAND PIC1
#define PIC1_DATA (PIC1+1)
#define PIC2_COMMAND PIC2
#define PIC2_DATA (PIC2+1)
#define PIC1_START_INTERRUPT 0x20 // Master PIC after remapping
#define PIC2_START_INTERRUPT 0x28 // Slave PIC after remapping
#define PIC_EOI 0x20 // End of interrupt
#define ICW1_ICW4 0x01
#define ICW1_SINGLE 0x02
#define ICW1_INTERVAL4 0x04
#define ICW1_LEVEL 0x08
#define ICW1_INIT 0x10
#define ICW4_8086 0x01 // 8086/88 (MCS-80/85) mode
#define ICW4_AUTO 0x02
#define ICW4_BUF_SLAVE 0x08
#define ICW4_BUF_MASTER 0x0C
#define ICW4_SFNM 0x10
/* Interrupt Descriptor Table */
/* idt_flags contains access flag of a single IDT entry
* | 0 - 4 | 5 - 6 | 7 |