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/** @file
* Utility routines for calling the PCI BIOS.
*/
/*
* Copyright (C) 2011 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
extern uint16_t pci_find_device(uint16_t v_id, uint16_t d_id);
/* Warning: pci_find_classcode destroys the high bits of ECX. */
extern uint16_t pci_find_classcode(uint32_t dev_class);
extern uint32_t pci_read_config_byte(uint8_t bus, uint8_t dev_fn, uint8_t reg);
extern uint32_t pci_read_config_word(uint8_t bus, uint8_t dev_fn, uint8_t reg);
/* Warning: pci_read_config_dword destroys the high bits of ECX. */
extern uint32_t pci_read_config_dword(uint8_t bus, uint8_t dev_fn, uint8_t reg);
extern void pci_write_config_byte(uint8_t bus, uint8_t dev_fn, uint8_t reg, uint8_t val);
extern void pci_write_config_word(uint8_t bus, uint8_t dev_fn, uint8_t reg, uint16_t val);
/* Warning: pci_write_config_dword destroys the high bits of ECX. */
extern void pci_write_config_dword(uint8_t bus, uint8_t dev_fn, uint8_t reg, uint32_t val);
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