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/* bsp.h
*
* This include file contains all DY-4 DMV170 board IO definitions.
*
* COPYRIGHT (c) 1989-1997.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
* $Id$
*/
#ifndef __DMV170_BSP_h
#define __DMV170_BSP_h
#ifdef __cplusplus
extern "C" {
#endif
#ifdef ASM
/* Definition of where to store registers in alignment handler */
#define ALIGN_REGS 0x0140
#else
#include <rtems.h>
#include <console.h>
#include <clockdrv.h>
#include <console.h>
#include <iosupp.h>
#include <dmv170.h>
#if 0
#define Enable_Debug() \
DMV170_WRITE( 0xffffbd0c, 0 )
#define Debug_Entry( num ) \
DMV170_WRITE( 0xffffbd06, num )
#else
#define Enable_Debug()
#define Debug_Entry( num )
#endif
/*
* The following macro calculates the Baud constant. For the Z8530 chip.
*/
#define Z8530_Baud( _frequency, _clock_by, _baud_rate ) \
( (_frequency /( _clock_by * 2 * _baud_rate)) - 2)
/*
* Define the time limits for RTEMS Test Suite test durations.
* Long test and short test duration limits are provided. These
* values are in seconds and need to be converted to ticks for the
* application.
*
*/
#define MAX_LONG_TEST_DURATION 300 /* 5 minutes = 300 seconds */
#define MAX_SHORT_TEST_DURATION 3 /* 3 seconds */
/*
* Stuff for Time Test 27
*/
#define MUST_WAIT_FOR_INTERRUPT 1
#define Install_tm27_vector( _handler ) \
set_vector( (_handler), PPC_IRQ_DECREMENTER, 1 )
#define Cause_tm27_intr() \
do { \
unsigned32 _clicks = 1; \
asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
} while (0)
#define Clear_tm27_intr() \
do { \
unsigned32 _clicks = 0xffffffff; \
unsigned32 _msr = 0; \
_ISR_Set_level( 0 ); \
asm volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
_msr &= ~0x8000; \
asm volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
} while (0)
#define Lower_tm27_intr() \
do { \
unsigned32 _msr = 0; \
_ISR_Set_level( 0 ); \
asm volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
_msr |= 0x8002; \
asm volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
} while (0)
/* Constants */
/*
* Device Driver Table Entries
*/
/*
* NOTE: Use the standard Console driver entry
*/
/*
* NOTE: Use the standard Clock driver entry
*/
/*
* Information placed in the linkcmds file.
*/
extern int RAM_START;
extern int RAM_END;
extern int RAM_SIZE;
extern int PROM_START;
extern int PROM_END;
extern int PROM_SIZE;
extern int CLOCK_SPEED;
extern int end; /* last address in the program */
/*
* How many libio files we want
*/
#define BSP_LIBIO_MAX_FDS 20
/* functions */
/*
* genvec.c
*/
rtems_isr_entry set_EE_vector(
rtems_isr_entry handler, /* isr routine */
rtems_vector_number vector /* vector number */
);
void initialize_external_exception_vector ();
/*
* console.c
*/
void DEBUG_puts( char *string );
void BSP_fatal_return( void );
void bsp_start( void );
void bsp_cleanup( void );
rtems_isr_entry set_vector( /* returns old vector */
rtems_isr_entry handler, /* isr routine */
rtems_vector_number vector, /* vector number */
int type /* RTEMS or RAW intr */
);
void BSP_fatal_return( void );
void bsp_spurious_initialize( void );
extern rtems_configuration_table BSP_Configuration; /* owned by BSP */
extern rtems_cpu_table Cpu_table; /* owned by BSP */
extern rtems_unsigned32 bsp_isr_level;
extern int CPU_PPC_CLICKS_PER_MS;
#endif /* ASM */
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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