| 1 | /* $Id: pciutil.h 98103 2023-01-17 14:15:46Z 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) 2011-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | #ifndef VBOX_INCLUDED_SRC_PC_BIOS_pciutil_h
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| 29 | #define VBOX_INCLUDED_SRC_PC_BIOS_pciutil_h
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| 30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 31 | # pragma once
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| 32 | #endif
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| 33 |
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| 34 | extern uint16_t pci_find_device(uint16_t v_id, uint16_t d_id);
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| 35 | /* Warning: pci_find_classcode destroys the high bits of ECX. */
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| 36 | extern uint16_t pci_find_classcode(uint32_t dev_class);
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| 37 | extern uint32_t pci_read_config_byte(uint8_t bus, uint8_t dev_fn, uint8_t reg);
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| 38 | extern uint32_t pci_read_config_word(uint8_t bus, uint8_t dev_fn, uint8_t reg);
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| 39 | /* Warning: pci_read_config_dword destroys the high bits of ECX. */
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| 40 | extern uint32_t pci_read_config_dword(uint8_t bus, uint8_t dev_fn, uint8_t reg);
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| 41 | extern void pci_write_config_byte(uint8_t bus, uint8_t dev_fn, uint8_t reg, uint8_t val);
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| 42 | extern void pci_write_config_word(uint8_t bus, uint8_t dev_fn, uint8_t reg, uint16_t val);
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| 43 | /* Warning: pci_write_config_dword destroys the high bits of ECX. */
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| 44 | extern void pci_write_config_dword(uint8_t bus, uint8_t dev_fn, uint8_t reg, uint32_t val);
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| 45 | extern uint16_t pci_find_class_noif(uint16_t dev_class);
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| 46 |
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| 47 | #endif /* !VBOX_INCLUDED_SRC_PC_BIOS_pciutil_h */
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| 48 |
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