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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;
/* Device config space registers. */
#define REG_VENDOR_ID 0x00
#define REG_DEVICE_ID 0x02
#define REG_COMMAND 0x04
#define REG_STATUS 0x06
#define REG_REVISION_ID 0x08
#define REG_PROG_IF 0x09
#define REG_SUBCLASS 0x0A
#define REG_CLASS 0x0B
#define REG_CACHE_LINE_SIZE 0x0C
#define REG_LATENCY_TIMER 0x0D
#define REG_HEADER_TYPE 0x0E
#define REG_BIST 0x0F
#define REG_BAR0 0x10
#define REG_BAR1 0x14
#define REG_BAR2 0x18
#define REG_BAR3 0x1C
#define REG_BAR4 0x20
#define REG_BAR5 0x24
#define REG_CARDBUS_CIS_POINTER 0x28
#define REG_SUBSYS_VENDOR_ID 0x2C
#define REG_SUBSYS_ID 0x2E
#define REG_DEV_OPROM_BASE 0x30
#define REG_CAP_POINTER 0x34
#define REG_INTERRUPT_LINE 0x3C
#define REG_INTERRUPT_PIN 0x3D
#define REG_MIN_GRANT 0x3E
#define REG_MAX_LATENCY 0x3F
/* Bridge config space registers. */
#define REG_PRIMARY_BUS 0x18
#define REG_SECONDARY_BUS 0x19
#define REG_SUBORDINATE_BUS 0x1A
#define REG_SECONDARY_LATENCY 0x1B
#define REG_IO_BASE 0x1C
#define REG_IO_LIMIT 0x1D
#define REG_SECONDARY_STATUS 0x1E
#define REG_MEMORY_BASE 0x20
#define REG_MEMORY_LIMIT 0x22
#define REG_PREFETCH_MEM_BASE 0x24
#define REG_PREFETCH_MEM_LIMIT 0x26
#define REG_PREFETCH_BASE_UPPER 0x28
#define REG_PREFETCH_LIMIT_UPPER 0x2C
#define REG_IO_BASE_UPPER 0x30
#define REG_IO_LIMIT_UPPER 0x32
#define REG_BRIDGE_OPROM_BASE 0x38
#define REG_BRIDGE_CONTROL 0x3C
#define REG_COMMAND_IO (1 << 0)
#define REG_COMMAND_MEM (1 << 1)
#define REG_COMMAND_BM (1 << 2)
#define HEADER_TYPE_NORMAL 0
#define HEADER_TYPE_BRIDGE 1
#define HEADER_TYPE_CARDBUS 2
#define HEADER_TYPE_MULTIFUNCTION 0x80
#define PCI_DEV(_bus, _dev, _fn) (0x80000000 | \
(uint32_t)(_bus << 16) | (uint32_t)(_dev << 11) | (uint32_t)(_fn << 8))
#define PCI_ADDR(_bus, _dev, _fn, _reg) \
(PCI_DEV(_bus, _dev, _fn) | (uint8_t)(_reg & ~3))
#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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