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Add a full set of pci access functions.

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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3479 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer
2008-08-07 19:09:17 +00:00
committed by Stefan Reinauer
parent 85c7aec73e
commit 88ad6b0f91
3 changed files with 73 additions and 43 deletions
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29
payloads/libpayload/include/pci.h
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@ -2,6 +2,7 @@
* 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
@ -30,7 +31,8 @@
#ifndef _PCI_H
#define _PCI_H
typedef unsigned short pcidev_t;
#include <arch/types.h>
typedef u32 pcidev_t;
#define REG_VENDOR_ID 0x00
#define REG_DEVICE_ID 0x04
@ -41,21 +43,24 @@ typedef unsigned short pcidev_t;
#define HEADER_TYPE_BRIDGE 1
#define HEADER_TYPE_CARDBUS 2
#define PCIDEV(_b, _d) ((((_b) & 0xFF) << 8) | ((_d) & 0xFF))
#define PCI_ADDR(_bus, _dev, _fn, _reg) \
(0x80000000 | (_bus << 16) | (_dev << 11) | (_fn << 8) | (_reg & ~3))
#define PCIDEV_BUS(_d) (((_d) >> 8) & 0xFF)
#define PCIDEV_DEVFN(_d) ((_d) & 0xFF)
#define PCI_DEV(_bus, _dev, _fn) \
(0x80000000 | (_bus << 16) | (_dev << 11) | (_fn << 8))
#define PCI_ADDR(_bus, _dev, _reg) \
(0x80000000 | (_bus << 16) | (_dev << 8) | (_reg & ~3))
#define PCI_SLOT(_d) ((_d >> 11) & 0x1f)
#define PCI_FUNC(_d) ((_d >> 8) & 0x7)
void pci_read_dword(unsigned int bus, unsigned int devfn,
unsigned int reg, unsigned int *val);
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_read_byte(unsigned int bus, unsigned int devfn,
unsigned int reg, unsigned char *val);
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(unsigned short vid, unsigned short did, pcidev_t *dev);
unsigned int pci_read_resource(pcidev_t dev, int bar);
int pci_find_device(u16 vid, u16 did, pcidev_t *dev);
u32 pci_read_resource(pcidev_t dev, int bar);
#endif