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jcastillo |
/*
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* BIOS32, PCI BIOS functions and defines
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* Copyright 1994, Drew Eckhardt
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*
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* For more information, please consult
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*
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* PCI BIOS Specification Revision
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* PCI Local Bus Specification
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* PCI System Design Guide
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*
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* PCI Special Interest Group
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* P.O. Box 14070
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* Portland, OR 97214
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* U. S. A.
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* Phone: 800-433-5177 / +1-503-797-4207
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* Fax: +1-503-234-6762
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*
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* Manuals are $25 each or $50 for all three, plus $7 shipping
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* within the United States, $35 abroad.
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*/
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#ifndef BIOS32_H
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#define BIOS32_H
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/*
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* Error values that may be returned by the PCI bios. Use
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* pcibios_strerror() to convert to a printable string.
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*/
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#define PCIBIOS_SUCCESSFUL 0x00
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#define PCIBIOS_FUNC_NOT_SUPPORTED 0x81
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#define PCIBIOS_BAD_VENDOR_ID 0x83
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#define PCIBIOS_DEVICE_NOT_FOUND 0x86
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#define PCIBIOS_BAD_REGISTER_NUMBER 0x87
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#define PCIBIOS_SET_FAILED 0x88
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#define PCIBIOS_BUFFER_TOO_SMALL 0x89
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extern int pcibios_present (void);
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extern unsigned long pcibios_init (unsigned long memory_start,
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unsigned long memory_end);
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extern unsigned long pcibios_fixup (unsigned long memory_start,
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unsigned long memory_end);
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extern int pcibios_find_class (unsigned int class_code, unsigned short index,
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unsigned char *bus, unsigned char *dev_fn);
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extern int pcibios_find_device (unsigned short vendor, unsigned short dev_id,
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unsigned short index, unsigned char *bus,
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unsigned char *dev_fn);
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extern int pcibios_read_config_byte (unsigned char bus, unsigned char dev_fn,
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unsigned char where, unsigned char *val);
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extern int pcibios_read_config_word (unsigned char bus, unsigned char dev_fn,
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unsigned char where, unsigned short *val);
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extern int pcibios_read_config_dword (unsigned char bus, unsigned char dev_fn,
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unsigned char where, unsigned int *val);
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extern int pcibios_write_config_byte (unsigned char bus, unsigned char dev_fn,
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unsigned char where, unsigned char val);
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extern int pcibios_write_config_word (unsigned char bus, unsigned char dev_fn,
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unsigned char where, unsigned short val);
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extern int pcibios_write_config_dword (unsigned char bus, unsigned char dev_fn,
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unsigned char where, unsigned int val);
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extern const char *pcibios_strerror (int error);
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#endif /* BIOS32_H */
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