73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
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/************************************************************************/
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/* */
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/* EEPROM.H */
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/* */
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/* Aug 25 1993 (c) 1993, ATI Technologies Incorporated. */
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/************************************************************************/
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/********************** PolyTron RCS Utilities
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$Revision: 1.0 $
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$Date: 31 Jan 1994 11:41:26 $
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$Author: RWOLFF $
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$Log: S:/source/wnt/ms11/miniport/vcs/eeprom.h $
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*
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* Rev 1.0 31 Jan 1994 11:41:26 RWOLFF
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* Initial revision.
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*
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* Rev 1.1 08 Oct 1993 15:18:50 RWOLFF
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* Added prototypes for ee_sel_eeprom() and ee_init_io() to allow
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* EEVGA.C to be built without including VIDFIND.H.
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*
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* Rev 1.0 03 Sep 1993 14:28:04 RWOLFF
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* Initial revision.
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End of PolyTron RCS section *****************/
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#ifdef DOC
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EEPROM.H - Header file for EEPROM.C
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#endif
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/*
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* Constants used for EEPROM access.
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*/
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#define STYLE_8514 0 /* Data stored 8514-style */
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#define STYLE_VGA 1 /* Data stored VGA-style */
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#define BUS_8BIT 0 /* 8514/ULTRA in 8-bit slot */
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#define BUS_16BIT 1 /* 8514/ULTRA in 16-bit slot */
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/*
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* Global data structures used for EEPROM access.
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*/
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extern struct st_eeprom_data ee; // the location of I/O port bits
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/*
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* Global variables dealing with the EEPROM.
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*/
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extern ULONG ati_reg; /* Base register for ATI extended VGA registers */
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extern char vga_chip; // VGA chip revision as ascii
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/*
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* Function prototypes.
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*/
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extern WORD ee_read_vga (short iIndex); // VGA method
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extern void ee_write_vga(unsigned short uiIndex, unsigned short uiData);
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extern void ee_cmd_vga(unsigned short uiInstruct);
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extern void ee_erase_vga(unsigned short uiIndex);
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extern void ee_enab_vga(void);
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extern void ee_disab_vga(void);
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extern WORD ee_read_8514 (short index);
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extern void ee_cmd_16 (WORD instruct);
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extern void ee_cmd_1K (WORD instruct);
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extern void Mach32DescribeEEPROM(int Style);
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extern void Mach8UltraDescribeEEPROM(int BusWidth);
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extern void Mach8ComboDescribeEEPROM(void);
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BOOLEAN ee_sel_eeprom (PVOID Context);
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BOOLEAN ee_init_io (PVOID Context);
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