| 1 | /* $Id: pciutil.h 93115 2022-01-01 11:31:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * Utility routines for calling the PCI BIOS.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2011-2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | #ifndef VBOX_INCLUDED_SRC_PC_BIOS_pciutil_h
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| 19 | #define VBOX_INCLUDED_SRC_PC_BIOS_pciutil_h
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| 20 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 21 | # pragma once
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| 22 | #endif
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| 23 |
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| 24 | extern uint16_t pci_find_device(uint16_t v_id, uint16_t d_id);
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| 25 | /* Warning: pci_find_classcode destroys the high bits of ECX. */
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| 26 | extern uint16_t pci_find_classcode(uint32_t dev_class);
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| 27 | extern uint32_t pci_read_config_byte(uint8_t bus, uint8_t dev_fn, uint8_t reg);
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| 28 | extern uint32_t pci_read_config_word(uint8_t bus, uint8_t dev_fn, uint8_t reg);
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| 29 | /* Warning: pci_read_config_dword destroys the high bits of ECX. */
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| 30 | extern uint32_t pci_read_config_dword(uint8_t bus, uint8_t dev_fn, uint8_t reg);
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| 31 | extern void pci_write_config_byte(uint8_t bus, uint8_t dev_fn, uint8_t reg, uint8_t val);
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| 32 | extern void pci_write_config_word(uint8_t bus, uint8_t dev_fn, uint8_t reg, uint16_t val);
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| 33 | /* Warning: pci_write_config_dword destroys the high bits of ECX. */
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| 34 | extern void pci_write_config_dword(uint8_t bus, uint8_t dev_fn, uint8_t reg, uint32_t val);
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| 35 | extern uint16_t pci_find_class_noif(uint16_t dev_class);
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| 36 |
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| 37 | #endif /* !VBOX_INCLUDED_SRC_PC_BIOS_pciutil_h */
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| 38 |
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