void kmain(struct multiboot* b, uint32_t magic)
{
hide_cursor();
cls();
setup_gdt();
setup_idt();
if(b->mods_count == 1)
{
uint32_t mods_start_addr=*(uint32_t*)(b->mods_addr);
uint32_t mods_end_addr=*(uint32_t*)(b->mods_addr + 4);
if(((uint32_t)&__kernel_end - KERNEL_VMA) < mods_end_addr) kernel_end_addr=(mods_end_addr & 0xFFFFF000) + 0x1000;
}
setup_bitmap();
setup_vmm();
setup_pic();
setup_tasking();
setup_process_tree();
set_timer_freq(100);
pci_init();
setup_network();
b=(struct multiboot*)((uint8_t*)b+KERNEL_VMA);
uint32_t mods_addr=*(uint32_t*)(b->mods_addr + KERNEL_VMA) + KERNEL_VMA;
root_fs=ext2_fs_init((uint8_t*)mods_addr);
struct inode *devfs=devfs_init();
struct inode *devfs_root=vfs_search((struct inode*)root_fs, "/dev");
if(devfs_root)
{
vfs_mount(devfs, devfs_root);
register_tty_driver();
register_kbd_driver();
register_rtl8139_driver();
}
else kprintf("Could not mount /dev, no such directory\n");
kprintf("\n%@Welcome to tapiOS!%@\n\n", 0x05, 0x07, b->mods_count, 0x03);
struct inode *node=vfs_search((struct inode*)root_fs, "/bin/init");
if(node)
{
struct file *init=vfs_open(node, NULL, O_RDONLY);
uint8_t *init_mem=kmalloc(node->size);
int read=vfs_read(init, init_mem, node->size);
vaddr_t entrypoint=init_elf_get_entry_point(init_mem);
setup_initial_process(entrypoint);
}
else kprintf("Init not found\n");
__asm__ volatile("hltloop: hlt; jmp hltloop");
PANIC();
}
/**
* @brief Función principal del kernel. Esta rutina recibe el control del
* codigo en ensamblador de start.S.
*
* @param magic Número mágico pasado por GRUB al código de start,S
* @param multiboot_info Apuntador a la estructura de información multiboot
*/
void cmain(unsigned int magic, void * multiboot_info) {
unsigned int i;
unsigned int allocations;
char * addr;
/* Referencia a la estructura de datos multiboot_header en start.S */
extern multiboot_header_t multiboot_header;
multiboot_info_location = (unsigned int) multiboot_info;
cls();
/* Configurar y cargar la GDT definida en pm.c*/
setup_gdt();
/* Configurar y cargar la IDT definida en idt.c */
setup_idt();
/* Configurar las excepciones definidas en IA-32 */
setup_exceptions();
/* Configurar las IRQ */
setup_irq();
/* Configurar el mapa de bits de memoria del kernel */
setup_memory();
printf("Kernel started\n");
/* Probar la gestion de unidades de memoria */
/* Reservar una unidad */
addr = allocate_unit();
printf("Allocated address: %x = %d\n", addr, addr);
addr = allocate_unit_region(0xFFFF);
printf("Allocated region: %x\n", addr);
addr = allocate_unit();
printf("Allocated address: %x\n", addr);
printf("Last allocated address: %x, %u\n",addr, addr);
inline_assembly("sti");
printf("Kernel finished\n");
}
void mt_setup_gdt_idt(void)
{
setup_gdt();
setup_idt();
}
