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-rw-r--r--arch/i386/boot/pic.c67
-rw-r--r--arch/i386/boot/syscall.c21
-rw-r--r--arch/i386/boot/syscall.h9
-rw-r--r--arch/i386/boot/tss.c26
-rw-r--r--arch/i386/boot/tss.h39
-rw-r--r--arch/i386/boot/tty.c87
-rw-r--r--arch/i386/boot/vga.h33
7 files changed, 0 insertions, 282 deletions
diff --git a/arch/i386/boot/pic.c b/arch/i386/boot/pic.c
deleted file mode 100644
index 69a0785..0000000
--- a/arch/i386/boot/pic.c
+++ /dev/null
@@ -1,67 +0,0 @@
-#include <kernel/pic.h>
-
-void pic_eoi(unsigned char irq) {
- if (irq >= 8)
- outb(PIC2_COMMAND, 0x20);
- outb(PIC1_COMMAND, 0x20);
-}
-
-void pic_remap(void) {
- unsigned char a1 = inb(PIC1_DATA);
- unsigned char a2 = inb(PIC2_DATA);
-
- outb(PIC1_COMMAND, ICW1_INIT | ICW1_ICW4);
- outb(PIC2_COMMAND, ICW1_INIT | ICW1_ICW4);
- outb(PIC1_DATA, PIC1);
- outb(PIC2_DATA, PIC2);
- outb(PIC1_DATA, 4);
- outb(PIC2_DATA, 2);
- outb(PIC1_DATA, ICW4_8086);
- outb(PIC2_DATA, ICW4_8086);
- outb(PIC1_DATA, a1);
- outb(PIC2_DATA, a2);
-}
-
-static uint16_t __pic_get_irq_reg(int ocw3) {
- outb(PIC1_COMMAND, ocw3);
- outb(PIC2_COMMAND, ocw3);
- return (inb(PIC2_COMMAND) << 8) | inb(PIC1_COMMAND);
-}
-
-uint16_t pic_get_irr(void) {
- return __pic_get_irq_reg(PIC_READ_IRR);
-}
-
-uint16_t pic_get_isr(void) {
- return __pic_get_irq_reg(PIC_READ_ISR);
-}
-
-void irq_set_mask(uint8_t irq) {
- uint16_t port;
- uint8_t data;
-
- if (irq < 8) {
- port = PIC1_DATA;
- } else {
- port = PIC2_DATA;
- irq -= 8;
- }
-
- data = inb(port) | (1 << irq);
- outb(port, data);
-}
-
-void irq_clear_mask(uint8_t irq) {
- uint16_t port;
- uint8_t data;
-
- if (irq < 8) {
- port = PIC1_DATA;
- } else {
- port = PIC2_DATA;
- irq -= 8;
- }
-
- data = inb(port) & ~(1 << irq);
- outb(port, data);
-}
diff --git a/arch/i386/boot/syscall.c b/arch/i386/boot/syscall.c
deleted file mode 100644
index fb613b3..0000000
--- a/arch/i386/boot/syscall.c
+++ /dev/null
@@ -1,21 +0,0 @@
-#include "syscall.h"
-#include <kernel/io.h>
-#include <stddef.h>
-
-void *(*syscall_handlers[30])(struct isr_frame *frame);
-
-void syscall_dispatch(struct isr_frame *frame) {
- if (syscall_handlers[frame->eax] != NULL)
- syscall_handlers[frame->eax](frame);
- else
- kprintf("Error: Invalid system call number: %d\n", frame->eax);
- __asm__ volatile("cli;hlt");
-}
-
-void register_syscall(void *handler(struct isr_frame*), int num) {
- syscall_handlers[num] = handler;
-}
-
-void print_hello(struct isr_frame *frame) {
- kprintf("Hello syscall\n");
-}
diff --git a/arch/i386/boot/syscall.h b/arch/i386/boot/syscall.h
deleted file mode 100644
index 376fb7c..0000000
--- a/arch/i386/boot/syscall.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef I386_SYSCALL_H
-#define I386_SYSCALL_H
-
-#include <kernel/isr.h>
-
-void syscall_dispatch(struct isr_frame *frame);
-void register_syscall(void *handler(struct isr_frame*), int num);
-
-#endif
diff --git a/arch/i386/boot/tss.c b/arch/i386/boot/tss.c
deleted file mode 100644
index 2edfa76..0000000
--- a/arch/i386/boot/tss.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include "tss.h"
-#include <kernel/string.h>
-
-struct tss tss_entry;
-
-uint64_t create_tss_entry(uint16_t ss0, uint32_t esp0) {
- uint32_t base = (uint32_t)&tss_entry;
- uint32_t limit = base + sizeof(&tss_entry);
- uint64_t ret = create_gdt_entry(base, limit, 0xE9);
-
- memset(&tss_entry, 0, sizeof(struct tss));
- tss_entry.ss0 = ss0;
- tss_entry.esp0 = esp0;
- tss_entry.cs = 0x08;
- tss_entry.ss = 0x13;
- tss_entry.ds = 0x13;
- tss_entry.es = 0x13;
- tss_entry.fs = 0x13;
- tss_entry.gs = 0x13;
- tss_entry.io_offset = sizeof(struct tss) & 0xFFFF;
- return ret;
-}
-
-void set_kernel_stack(uint32_t stack) {
- tss_entry.esp0 = stack;
-}
diff --git a/arch/i386/boot/tss.h b/arch/i386/boot/tss.h
deleted file mode 100644
index 28bae6e..0000000
--- a/arch/i386/boot/tss.h
+++ /dev/null
@@ -1,39 +0,0 @@
-#ifndef I386_TSS_H
-#define I386_TSS_H
-
-#include <stdint.h>
-
-struct tss {
- uint32_t link;
- uint32_t esp0;
- uint32_t ss0;
- uint32_t esp1;
- uint32_t ss2;
- uint32_t cr3;
- uint32_t eip;
- uint32_t eflags;
- uint32_t eax;
- uint32_t ecx;
- uint32_t edx;
- uint32_t ebx;
- uint32_t esp;
- uint32_t ebp;
- uint32_t esi;
- uint32_t edi;
- uint32_t es;
- uint32_t cs;
- uint32_t ss;
- uint32_t ds;
- uint32_t fs;
- uint32_t gs;
- uint32_t ldtr;
- uint32_t io_offset;
-}__attribute__((packed));
-
-void flush_tss(void);
-
-uint64_t create_gdt_entry(uint32_t base, uint32_t limit, uint16_t flag);
-uint64_t create_tss_entry(uint16_t ss0, uint32_t esp0);
-void set_kernel_stack(uint32_t stack);
-
-#endif
diff --git a/arch/i386/boot/tty.c b/arch/i386/boot/tty.c
deleted file mode 100644
index aa77736..0000000
--- a/arch/i386/boot/tty.c
+++ /dev/null
@@ -1,87 +0,0 @@
-#include "vga.h"
-#include <kernel/tty.h>
-#include <kernel/string.h>
-#include <stddef.h>
-#include <stdint.h>
-
-static const size_t VGA_WIDTH = 80;
-static const size_t VGA_HEIGHT = 25;
-static uint16_t *const VGA_MEMORY = (uint16_t*)0xC03FF000;
-
-static size_t terminal_row;
-static size_t terminal_column;
-static uint8_t terminal_color;
-static uint16_t *terminal_buffer;
-
-void tty_init(void) {
- terminal_row = 0;
- terminal_column = 0;
- terminal_color = vga_entry_color(VGA_COLOR_LIGHT_GREY, VGA_COLOR_BLACK);
- terminal_buffer = VGA_MEMORY;
- for (size_t y = 0; y < VGA_HEIGHT; y++) {
- for (size_t x = 0; x < VGA_WIDTH; x++) {
- const size_t index = y * VGA_WIDTH + x;
- terminal_buffer[index] = vga_entry(' ', terminal_color);
- }
- }
-}
-
-void tty_setcolor(uint8_t color) {
- terminal_color = color;
-}
-
-void tty_putentryat(unsigned char c, uint8_t color, size_t x, size_t y) {
- const size_t index = y * VGA_WIDTH + x;
- terminal_buffer[index] = vga_entry(c, color);
-}
-
-void terminal_scroll(void) {
- for (size_t i = 0; i < VGA_HEIGHT; i++) {
- for (size_t j = 0; j < VGA_WIDTH; j++)
- terminal_buffer[i * VGA_WIDTH + j] = terminal_buffer[(i+1) * VGA_WIDTH + j];
- }
-}
-
-void tty_putchar(char c) {
- unsigned char uc;
-
- uc = c;
- switch (uc) {
- case '\n':
- terminal_column = 0;
- if (++terminal_row == VGA_HEIGHT) {
- terminal_row--;
- terminal_scroll();
- }
- break;
- case '\t':
- terminal_column += 4;
- if (++terminal_column == VGA_WIDTH) {
- terminal_column = 4;
- if (++terminal_row == VGA_HEIGHT) {
- terminal_row--;
- terminal_scroll();
- }
- }
- break;
- default:
- tty_putentryat(uc, terminal_color, terminal_column, terminal_row);
- if (++terminal_column == VGA_WIDTH) {
- terminal_column = 0;
- if (++terminal_row == VGA_HEIGHT) {
- terminal_row--;
- terminal_scroll();
- }
- }
- break;
- }
-}
-
-void tty_write(const char *data, size_t size) {
- for (size_t i = 0; i < size; i++)
- tty_putchar(data[i]);
-}
-
-void tty_writestring(const char *data) {
- tty_write(data, strlen(data));
-}
diff --git a/arch/i386/boot/vga.h b/arch/i386/boot/vga.h
deleted file mode 100644
index e89f202..0000000
--- a/arch/i386/boot/vga.h
+++ /dev/null
@@ -1,33 +0,0 @@
-#ifndef I386_VGA_H
-#define I386_VGA_H
-
-#include <stdint.h>
-
-enum vga_color {
- VGA_COLOR_BLACK = 0,
- VGA_COLOR_BLUE = 1,
- VGA_COLOR_GREEN = 2,
- VGA_COLOR_CYAN = 3,
- VGA_COLOR_RED = 4,
- VGA_COLOR_MAGENTA = 5,
- VGA_COLOR_BROWN = 6,
- VGA_COLOR_LIGHT_GREY = 7,
- VGA_COLOR_DARK_GREY = 8,
- VGA_COLOR_LIGHT_BLUE = 9,
- VGA_COLOR_LIGHT_GREEN = 10,
- VGA_COLOR_LIGHT_CYAN = 11,
- VGA_COLOR_LIGHT_RED = 12,
- VGA_COLOR_LIGHT_MAGENTA = 13,
- VGA_COLOR_LIGHT_BROWN = 14,
- VGA_COLOR_LIGHT_WHITE = 15,
-};
-
-static inline uint8_t vga_entry_color(enum vga_color fg, enum vga_color bg) {
- return fg | bg << 4;
-}
-
-static inline uint16_t vga_entry(unsigned char uc, uint8_t color) {
- return (uint16_t)uc | (uint16_t)color << 8;
-}
-
-#endif
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