89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
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/*++
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Copyright (c) 1993 Weitek Corporation
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Module Name:
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p9000.h
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Abstract:
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This module contains the definitions specific to the Weitek P9000.
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Environment:
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Kernel mode
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Revision History may be found at the end of this file.
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--*/
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//
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// Offsets of the P9000 registers from the base memory address.
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//
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#define SYSCONFIG 0x4 // W8720 system configuration register
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#define SRCTL 0x0138L // Screen repaint timing register
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#define MEMCONF 0x0184L // Memory configuration regester
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#define WMIN 0x80220 // Clipping window minimum register
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#define WMAX 0x80224 // Clipping window maximum register
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#define FOREGROUND 0x80200 // Foreground color register
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#define METACORD 0x81218 // Meta-coordinate loading register
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#define RASTER 0x80218 // Raster Op register
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#define VRTC 0x011CL // Vertical scan counter
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//
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// Defines for P9000 specific drawing operations.
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//
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#define REC 0x100 // Or with METACORD when entering rectangles
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#define QUAD 0x80008 // Draw a quadrilateral
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#define FORE 0xFF00 // Foreground color only write mode
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//
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// Enumerate the various P9000 memory configuration values.
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//
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typedef enum
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{
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P90_MEM_CFG_1,
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P90_MEM_CFG_2,
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P90_MEM_CFG_3,
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P90_MEM_CFG_4,
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P90_MEM_CFG_5
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} P90_MEM_CFG;
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//
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// Define bits in the P9000 Screen Repaint Timing Control Reg (SRCTL)
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//
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#define VSYNC_INTERNAL 0x0100L
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#define HSYNC_INTERNAL 0x0080L
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#define COMPOSITE_SYNC 0x0040L
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#define VIDEO_NORMAL 0x0020L
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#define HBLNK_RELOAD 0x0010L
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#define DISP_BUFFER_1 0x0008L
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#define QSF_SELECT 0x0007L
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//
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// Masks for P9000 registers.
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//
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#define P9_COORD_MASK 0x1fff1fffL
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//
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// Macro used to wait for P9000 vertical retrace.
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//
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#if 0
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#define WAIT_FOR_RETRACE() \
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ulStrtScan = P9_RD_REG(P91_VRTC); \
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while ((ulCurScan = P9_RD_REG(P91_VRTC)) >= ulStrtScan) \
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{ \
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ulStrtScan = ulCurScan; \
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}
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#endif
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#define WAIT_FOR_RETRACE() /* The above loses sync on p9100... */
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