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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
* Copyright (C) 2008 coresystems GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _PCI_H
#define _PCI_H
#include <arch/types.h>
typedef u32 pcidev_t;
#define REG_VENDOR_ID 0x00
#define REG_COMMAND 0x04
#define REG_CLASS_DEV 0x0A
#define REG_HEADER_TYPE 0x0E
#define REG_PRIMARY_BUS 0x18
#define REG_SUBSYS_VENDOR_ID 0x2C
#define REG_SUBSYS_ID 0x2E
#define REG_COMMAND_BM (1 << 2)
#define HEADER_TYPE_NORMAL 0
#define HEADER_TYPE_BRIDGE 1
#define HEADER_TYPE_CARDBUS 2
#define PCI_ADDR(_bus, _dev, _fn, _reg) \
(0x80000000 | (_bus << 16) | (_dev << 11) | (_fn << 8) | (_reg & ~3))
#define PCI_DEV(_bus, _dev, _fn) \
(0x80000000 | (_bus << 16) | (_dev << 11) | (_fn << 8))
#define PCI_BUS(_d) ((_d >> 16) & 0xff)
#define PCI_SLOT(_d) ((_d >> 11) & 0x1f)
#define PCI_FUNC(_d) ((_d >> 8) & 0x7)
u8 pci_read_config8(u32 device, u16 reg);
u16 pci_read_config16(u32 device, u16 reg);
u32 pci_read_config32(u32 device, u16 reg);
void pci_write_config8(u32 device, u16 reg, u8 val);
void pci_write_config16(u32 device, u16 reg, u16 val);
void pci_write_config32(u32 device, u16 reg, u32 val);
int pci_find_device(u16 vid, u16 did, pcidev_t *dev);
u32 pci_read_resource(pcidev_t dev, int bar);
void pci_set_bus_master(pcidev_t dev);
#endif
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