diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/debug.h | 3 | ||||
| -rw-r--r-- | include/font.h | 2 | ||||
| -rw-r--r-- | include/idt.h | 34 | ||||
| -rw-r--r-- | include/io.h | 9 | ||||
| -rw-r--r-- | include/irq.h | 58 | ||||
| -rw-r--r-- | include/keyboard.h | 9 | ||||
| -rw-r--r-- | include/pic.h | 30 |
7 files changed, 141 insertions, 4 deletions
diff --git a/include/debug.h b/include/debug.h index 1c53148..ebe3a52 100644 --- a/include/debug.h +++ b/include/debug.h @@ -4,8 +4,5 @@ #include <stdint.h> void bochs_breakpoint(void); -void put_in_r8(uint64_t value); -void put_in_r9(uint64_t value); -void put_in_r10(uint64_t value); #endif diff --git a/include/font.h b/include/font.h index c95e7bc..678a6c2 100644 --- a/include/font.h +++ b/include/font.h @@ -4,7 +4,7 @@ #include <stdint.h> #define PSF_FONT_MAGIC 0x864ab572 - + typedef struct { uint32_t magic; /* magic bytes to identify PSF */ uint32_t version; /* zero */ diff --git a/include/idt.h b/include/idt.h new file mode 100644 index 0000000..9ca9c3a --- /dev/null +++ b/include/idt.h @@ -0,0 +1,34 @@ +#ifndef IDT_H +#define IDT_H + +#include <stdint.h> + +#define GDT_CODE_SEG 0x08 + +#define INTERRUPT_GATE 0x8E +#define TRAP_GATE 0x8F + +struct idt_entry { + uint16_t offset_1; // offset bits 0..15 + uint16_t selector; // a code segment selector in GDT or LDT + uint8_t ist; // bits 0..2 holds Interrupt Stack Table offset, rest of bits zero. + uint8_t type_attributes; // gate type, dpl, and p fields + uint16_t offset_2; // offset bits 16..31 + uint32_t offset_3; // offset bits 32..63 + uint32_t zero; // reserved +} __attribute__((packed)); +typedef struct idt_entry idt_entry; + +struct idtp { + uint16_t size; + uint64_t offset; +} __attribute__((packed)); +typedef struct idtp idtp; + +void init_idt(void); +void load_idt(idtp* pointer); +void init_idt_table(void); +void add_to_idt(uint16_t num, uint64_t offset, uint16_t selector, uint8_t type); + + +#endif diff --git a/include/io.h b/include/io.h new file mode 100644 index 0000000..76c401d --- /dev/null +++ b/include/io.h @@ -0,0 +1,9 @@ +#ifndef IO_H +#define IO_H + +#include <stdint.h> + +uint8_t inb(uint32_t port); +void outb(uint32_t port, uint8_t value); + +#endif diff --git a/include/irq.h b/include/irq.h new file mode 100644 index 0000000..f0e38d6 --- /dev/null +++ b/include/irq.h @@ -0,0 +1,58 @@ +#ifndef IRQ_H +#define IRQ_H + +#include <stdint.h> + +// exceptions +void isr0(void); +void isr1(void); +void isr2(void); +void isr3(void); +void isr4(void); +void isr5(void); +void isr6(void); +void isr7(void); +void isr8(uint64_t error); +void isr9(void); +void isr10(uint64_t error); +void isr11(uint64_t error); +void isr12(uint64_t error); +void isr13(uint64_t error); +void isr14(uint64_t error); +void isr15(void); +void isr16(void); +void isr17(uint64_t error); +void isr18(void); +void isr19(void); +void isr20(void); +void isr21(uint64_t error); +void isr22(void); +void isr23(void); +void isr24(void); +void isr25(void); +void isr26(void); +void isr27(void); +void isr28(void); +void isr29(uint64_t error); +void isr30(uint64_t error); +void isr31(void); + +// interrupts +void irq0(void); +void irq1(void); +void irq2(void); +void irq3(void); +void irq4(void); +void irq5(void); +void irq6(void); +void irq7(void); +void irq8(void); +void irq9(void); +void irq10(void); +void irq11(void); +void irq12(void); +void irq13(void); +void irq14(void); +void irq15(void); + +#endif diff --git a/include/keyboard.h b/include/keyboard.h new file mode 100644 index 0000000..3a1b7f1 --- /dev/null +++ b/include/keyboard.h @@ -0,0 +1,9 @@ +#ifndef KEYBOARD_H +#define KEYBOARD_H + +#define KEYBOARD_DATA_PORT 0x60 +#define KEYBOARD_STATUS_PORT 0x64 + +void keyboard_handler(void); + +#endif diff --git a/include/pic.h b/include/pic.h new file mode 100644 index 0000000..f1f4e44 --- /dev/null +++ b/include/pic.h @@ -0,0 +1,30 @@ +#ifndef PIC_H +#define PIC_H + +#define PIC1 0x20 /* IO base address for master PIC */ +#define PIC2 0xA0 /* IO base address for slave PIC */ +#define PIC1_COMMAND PIC1 +#define PIC1_DATA (PIC1+1) +#define PIC2_COMMAND PIC2 +#define PIC2_DATA (PIC2+1) + +#define PIC_EOI 0x20 /* End-of-interrupt command code */ + +/* reinitialize the PIC controllers, giving them specified vector offsets + rather than 8h and 70h, as configured by default */ + +#define ICW1_ICW4 0x01 /* ICW4 (not) needed */ +#define ICW1_SINGLE 0x02 /* Single (cascade) mode */ +#define ICW1_INTERVAL4 0x04 /* Call address interval 4 (8) */ +#define ICW1_LEVEL 0x08 /* Level triggered (edge) mode */ +#define ICW1_INIT 0x10 /* Initialization - required! */ + +#define ICW4_8086 0x01 /* 8086/88 (MCS-80/85) mode */ +#define ICW4_AUTO 0x02 /* Auto (normal) EOI */ +#define ICW4_BUF_SLAVE 0x08 /* Buffered mode/slave */ +#define ICW4_BUF_MASTER 0x0C /* Buffered mode/master */ +#define ICW4_SFNM 0x10 /* Special fully nested (not) */ + +void remap_pic(void); + +#endif |