kmain.c

/***************************************/
/* kernel main file 		       */
/* Written by sunil <sunilbn@live.com> */
/***************************************/

#include <system.h>
#include <multiboot.h>
#include <io.h>
#include <string.h>
#include <types.h>
#include <vmemory.h>
#include <time.h>
#include <gdt.h>
//#include <ldt.h>

void start_terminal()
{
  printf("root@simpleOS>");
}

void keyboard_init()
{
  
}

/* kernel entry point for simpleOS */
void kmain(struct multiboot_info *boot_info)
{
  console_init();
  gdt_init();
  idt_init();
  keyboard_init();  
  
  char *version = "0.1";
  print("Welcome to Simple OS!");
  printf(" version: %s\n",version);
  print("==============================================\n");
  print("VGA setup\t   ... [ok] \n");

  /* multiboot data */
  printf("boot loader name: %s\n", boot_info->boot_loader_name);
  printf("Lower mem: %u Kb, Upper mem: %u Kb\n", (unsigned)boot_info->mem_lower, (unsigned)boot_info->mem_upper);

  /* get real time clock */
  struct time t = get_current_time();
  printf("Time & date ==> %d:%d:%d \t %d/%d/%d\n",t.hours, t.minutes, t.seconds, t.month, t.day_of_month, t.year);
  
  print("Loading virtual memory       ...[Not ok]\n");
  vmem_init();
  
  print("Loading filesystem           ...[Not ok]\n");

  print("Loading system call interface...[Not ok]\n");

  print("Loading system               ...[Not ok]\n");

  print("Loading modules              ...[Not ok]\n");

  asm volatile ("int $0x4");
    asm volatile ("int $0x3");

  start_terminal();
  //place your code for kernel startup here

  //kernel main should never return
  while(1);
}