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77 lines
1.9 KiB
77 lines
1.9 KiB
/*++
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Copyright (c) 1992 Digital Equipment Corporation
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Module Name:
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jxprof.h
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Abstract:
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This header file defines profile counter hardware in the
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82357 PIC chip used on the Alpha/Jensen Platform.
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Author:
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Jeff McLeman (mcleman) 5-June-1992
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Revision History:
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--*/
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#ifndef _JXPROF_
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#define _JXPROF_
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//
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// Define the timer values for the Profiler
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//
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#define PIC_BINARY 0
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#define PIC_BCD 1
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#define PIC_MODE0 0x00 // xxxx000x
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#define PIC_MODE1 0x02 // xxxx001x
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#define PIC_MODE2 0x04 // xxxx010x
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#define PIC_MODE3 0x06 // xxxx011x
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#define PIC_MODE4 0x08 // xxxx100x
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#define PIC_MODE5 0x0A // xxxx101x
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#define PIC_CLC 0x00 // xx00xxxx
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#define PIC_RWLSBO 0x10 // xx01xxxx
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#define PIC_RWMSBO 0x20 // xx10xxxx
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#define PIC_RWLSBMSB 0x30 // xx11xxxx
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#define PIC_SC0 0x00 // 00xxxxxx
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#define PIC_SC1 0x40 // 01xxxxxx
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#define PIC_SC2 0x80 // 10xxxxxx
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#define PIC_RBC 0xC0 // 11xxxxxx
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#define PIC_SCALE_FACTOR 10 * 1000 // # of microsecond units times 10.
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//
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// Define a macro to set and enable the system profiler timer.
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// Note that the interval 'c' is in 100nS units.
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// Note that also the interval is incremented AFTER it is scaled.
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// This is due to the fact that the timer counts down to 1 in mode 2
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//
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#define PIC_PROFILER_ON(c)\
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WRITE_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->CommandMode1,\
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(ULONG)(PIC_BINARY | PIC_MODE2 | PIC_RWLSBMSB | PIC_SC0));\
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WRITE_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->Timer1,\
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(ULONG)((c) & 0xff) );\
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WRITE_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->Timer1,\
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(ULONG)(((c)>> 8) & 0xff) )
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//
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// Define a macro to shut down the profiler
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//
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#define PIC_PROFILER_OFF()\
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WRITE_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->CommandMode1,\
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(ULONG)(PIC_BINARY | PIC_MODE4 | PIC_RWLSBMSB | PIC_SC0))
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#endif // _JXPROF_
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