#define FOOLOS_MODULE_NAME "kernel"

#ifdef __linux__
#error "Watchout! this is not Linux but FoolOS. Use a cross-compiler"
#endif

#include <stdint.h>
#include "config.h"
#include "types.h"
#include "lib/logger/log.h"

#include "timer.h"
#include "mem.h"
#include "vmem.h"
#include "interrupts.h"

#include "console.h"


// for built-in shell
#include "lib/buffer/ringbuffer.h"
#include "task.h"


// mp informs us if this if this is the main processor
void kernel_main(uint32_t initial_stack, int mp)
{
    log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"initial_stack: 0x%08X",initial_stack);
    //
    // Configuring the PIT timer.
    //
    timer_init();

    //
    //	Memory Init
    //
    //  after this is set up we will be able to allocate and deallocate 
    //  blocks of physical memory :)
    //
    //	we know that here, the bootloader placed the memory map and
    //	the number of entries.
    //
    mem_init((physical_address)0xa001,(int)(*((uint16_t *)(0xa000))));

    //
    // Activate Virtual Memory (paging)
    // 0x8048000 is where user programms start!
    pdirectory *dir=vmem_init();

    //
    // init output to screen
    // 
    console_init();


    // log buffered messages to console
    log_log();

    //
    // Setup Interrupts (code segment: 0x08)
    //
    int_init(0x08);

    //
    // Scan the PCI Bus
    // 
    // We are interested in the E1000 Network Adapter in particular
    // Its driver will be hopefully implemented one day ;) TODO
    //
    //pci_init();
   

    //
    // Gather Info about other processors. (APs)
    // ACPI or MP
    //
    //
    /*
    smp_processors procdata;    

    if(!acpi_find(&procdata))
	if(!mp_find(&procdata))
	    panic(FOOLOS_MODULE_NAME,"ACPI and MP search failed! I do not want to continue!");
    */
    // 
    // Start the other Processors (also before paging for some reason!)
    //
    //smp_log_procdata(&procdata);
    //smp_start_aps(&procdata,0x80000);	// starts at 0x80000 
					// but it will be copied over mbr

    //
    // Initialize Multitasking
    //
    
    task_init(dir); //; this will never return!
 
}