#include <console/console.h>
#include <arch/io.h>
#include <arch/pciconf.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
/*
 * Functions for accessing PCI configuration space with type 1 accesses
 */

#define CONFIG_CMD(bus,devfn, where)   (0x80000000 | (bus << 16) | (devfn << 8) | (where & ~3))

static uint8_t pci_conf1_read_config8(unsigned char bus, int devfn, int where)
{
	outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
	return inb(0xCFC + (where & 3));
}

static uint16_t pci_conf1_read_config16(unsigned char bus, int devfn, int where)
{
	outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
	return inw(0xCFC + (where & 2));
}

static uint32_t pci_conf1_read_config32(unsigned char bus, int devfn, int where)
{
	outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
	return inl(0xCFC);
}

static void  pci_conf1_write_config8(unsigned char bus, int devfn, int where, uint8_t value)
{
	outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
	outb(value, 0xCFC + (where & 3));
}

static void pci_conf1_write_config16(unsigned char bus, int devfn, int where, uint16_t value)
{
	outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
	outw(value, 0xCFC + (where & 2));
}

static void pci_conf1_write_config32(unsigned char bus, int devfn, int where, uint32_t value)
{
	outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
	outl(value, 0xCFC);
}

#undef CONFIG_CMD

static const struct pci_ops pci_direct_conf1 =
{
	.read8  = pci_conf1_read_config8,
	.read16 = pci_conf1_read_config16,
	.read32 = pci_conf1_read_config32,
	.write8  = pci_conf1_write_config8,
	.write16 = pci_conf1_write_config16,
	.write32 = pci_conf1_write_config32,
};

void pci_set_method_conf1(void)
{
	conf = &pci_direct_conf1;
}