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#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <nrvn.h>
#include <vga.h>
#include <idt.h>
#include <pic.h>
#include <acpi.h>
#include <ps2.h>
#include <pci.h>
#include <multiboot.h>
#include <mem.h>
#include <memory.h>
#include <ahci.h>
#include <fs/gpt.h>
/* Check if the compiler thinks you are targeting the wrong operating system. */
#if defined(__linux__)
# error "You are not using a cross-compiler, you will most certainly run into trouble"
#endif
#if !defined(__x86_64__)
# error "nrvn needs to be compiled with a x86_64 compiler"
#endif
int oct2bin(char *str, int size) {
int n = 0;
while (size--) {
n *= 8;
n += *str - '0';
str++;
}
return n;
}
void kernel_main(void) {
vga_init();
vga_puts("hello world\n");
vga_puts("welcome to nirvanna\n\n");
vga_puts("initializing interrupt tables...");
idt_init();
vga_puts("interrupt tables initialized\n");
vga_puts("initializing the pic...");
pic_init();
vga_puts("pic initialized\n");
vga_puts("initializing memory pages... ");
if (paging_init()) {
vga_puts("memory pages allocated\n");
} else {
vga_puts("failed to allocate memory pages\n");
}
vga_puts("initializing ps/2...\n");
if (ps2_init(NULL))
vga_puts("ps/2 initialized.\n");
else
vga_puts("ps/2 initialization failed.\n");
vga_puts("initializing pci...\n");
if (pci_init())
vga_puts("pci initialized.\n");
else
vga_puts("pci initialization failed.\n");
struct disk *disk = get_disk(0);
struct gpt_header *gpt = read_gpt_disk(disk);
if (!gpt)
while (1);
struct gpt_entry *entry = get_gpt_entry(disk, gpt, 0);
if (!entry)
while (1);
char *archive = read_gpt_entry(disk, entry);
while (!memcmp(archive + 257, "ustar", 5)) {
int size = oct2bin(archive + 0x7c, 11);
vga_puts(archive[156] == '0' ? "filename: " : "directory: ");
vga_puts(archive);
vga_puts(", size: ");
vga_putn(size);
vga_putc('\n');
if (size > 0) {
vga_puts("contents: ");
vga_puts(archive + 512);
vga_putc('\n');
}
archive += 512 + (size > 0 ? 512 : 0);
}
while (1);
}
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