#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "chip.h"

#undef DEBUG
#define DEBUG 0
#if DEBUG 

static void print_pci_regs(struct device *dev)
{
      uint8_t byte;
      int i;

      for(i=0;i<256;i++) {
	     byte = pci_read_config8(dev, i);
   
             if((i & 0xf)==0) printk_debug("\n%02x:",i);
             printk_debug(" %02x",byte);
      }
      printk_debug("\n");

}
static void print_mem(void)
{
        unsigned int i;
	unsigned int start = 0xfffff000;
	for(i=start;i<0xffffffff;i++) {
             if((i & 0xf)==0) printk_debug("\n %08x:",i);
             printk_debug(" %02x ",(unsigned char)*((unsigned char *)i));
             }
	printk_debug(" %02x \n",(unsigned char)*((unsigned char *)i));

 }
static void print_pci_regs_all(void)
{
        struct device *dev;
	unsigned char i,j,k;

	for(i=0;i<=15;i++) {
		for(j=0;j<=0x1f;j++) {
			for (k=0;k<=6;k++){
				dev = dev_find_slot(i, PCI_DEVFN(j, k));
				if(!dev) {
					continue;
				}
				if(!dev->enabled) {
					continue;
				}
			        printk_debug("\n%02x:%02x:%02x aka %s",i,j,k, dev_path(dev));
				print_pci_regs(dev);
			}
		}
	}

}
 
static void debug_init(device_t dev)
{
        unsigned bus;
        unsigned devfn;

//	print_pci_regs_all();

	print_mem();
#if 0
        msr_t msr;
        unsigned index;
        unsigned eax, ebx, ecx, edx;
        index = 0x80000007;
        printk_debug("calling cpuid 0x%08x\n", index);
        asm volatile(
                "cpuid"
                : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
                : "a" (index)
                );
        printk_debug("cpuid[%08x]: %08x %08x %08x %08x\n",
                index, eax, ebx, ecx, edx);
        if (edx & (3 << 1)) {
                index = 0xC0010042;
                printk_debug("Reading msr: 0x%08x\n", index);
                msr = rdmsr(index);
                printk_debug("msr[0x%08x]: 0x%08x%08x\n",
                        index, msr.hi, msr.hi);
        }
#endif
}

static void debug_noop(device_t dummy)
{
}

static struct device_operations debug_operations = {
        .read_resources   = debug_noop,
        .set_resources    = debug_noop,
        .enable_resources = debug_noop,
        .init             = debug_init,
};

static unsigned int scan_root_bus(device_t root, unsigned int max)
{
        struct device_path path;
        device_t debug;
        max = root_dev_scan_bus(root, max);
        path.type = DEVICE_PATH_PNP;
        path.u.pnp.port   = 0;
        path.u.pnp.device = 0;
        debug = alloc_dev(&root->link[1], &path);
        debug->ops = &debug_operations;
        return max;
}


static void mainboard_init(device_t dev)
{       
        root_dev_init(dev);
	// Do sth
}

static struct device_operations mainboard_operations = {
	.read_resources   = root_dev_read_resources,
	.set_resources    = root_dev_set_resources,
	.enable_resources = root_dev_enable_resources,
	.init             = mainboard_init,
	.scan_bus         = scan_root_bus,
};

static void enable_dev(struct device *dev)
{
	dev_root.ops = &mainboard_operations;
}
#endif

struct chip_operations mainboard_tyan_s2735_ops = {
	CHIP_NAME("Tyan s2735 mainboard")
#if DEBUG
	.enable_dev = enable_dev, 
#endif
};