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/*++
Copyright (c) 1992, 1993 Digital Equipment Corporation
Module Name:
halprof.h
Abstract:
This header file defines profile counter hardware in the
82357 PIC chip.
Author:
Jeff McLeman (mcleman) 5-June-1992
Revision History:
--*/
#ifndef _HALPROF_
#define _HALPROF_
//
// Define the timer values for the Profiler
//
#define PIC_BINARY 0
#define PIC_BCD 1
#define PIC_MODE0 0x00 // xxxx000x
#define PIC_MODE1 0x02 // xxxx001x
#define PIC_MODE2 0x04 // xxxx010x
#define PIC_MODE3 0x06 // xxxx011x
#define PIC_MODE4 0x08 // xxxx100x
#define PIC_MODE5 0x0A // xxxx101x
#define PIC_CLC 0x00 // xx00xxxx
#define PIC_RWLSBO 0x10 // xx01xxxx
#define PIC_RWMSBO 0x20 // xx10xxxx
#define PIC_RWLSBMSB 0x30 // xx11xxxx
#define PIC_SC0 0x00 // 00xxxxxx
#define PIC_SC1 0x40 // 01xxxxxx
#define PIC_SC2 0x80 // 10xxxxxx
#define PIC_RBC 0xC0 // 11xxxxxx
#define PIC_SCALE_FACTOR 10 * 1000 // # of microsecond units times 10.
//
// Define a macro to set and enable the system profiler timer.
// Note that the interval 'c' is in 100nS units.
// Note that also the interval is incremented AFTER it is scaled.
// This is due to the fact that the timer counts down to 1 in mode 2
//
#define PIC_PROFILER_ON(c)\
WRITE_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->CommandMode1,\
(UCHAR)(PIC_BINARY | PIC_MODE2 | PIC_RWLSBMSB | PIC_SC0));\
WRITE_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->Timer1,\
(UCHAR)((c) & 0xff) );\
WRITE_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->Timer1,\
(UCHAR)(((c)>> 8) & 0xff) )
//
// Define a macro to shut down the profiler
//
#define PIC_PROFILER_OFF()\
WRITE_PORT_UCHAR(&((PEISA_CONTROL) HalpEisaControlBase)->CommandMode1,\
(ULONG)(PIC_BINARY | PIC_MODE4 | PIC_RWLSBMSB | PIC_SC0))
#endif // _HALPROF_
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