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/* bsp.h
*
* This include file contains some definitions specific to the
* Cyclone CVME960 and CVME961 boards. These boards are the
* same except the 960 uses SRAM and the 961 DRAM.
*
* COPYRIGHT (c) 1989-1997.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#ifndef __CVME961_h
#define __CVME961_h
#ifdef __cplusplus
extern "C" {
#endif
#include <rtems.h>
#include <iosupp.h>
#include <console.h>
#include <clockdrv.h>
/*
* 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 */
/*
* Define the interrupt mechanism for Time Test 27
*
* NOTE: Following are for i960CA and are board independent
*
*/
#define MUST_WAIT_FOR_INTERRUPT 0
#define Install_tm27_vector( handler ) set_vector( (handler), 6, 1 )
#define Cause_tm27_intr() i960_cause_intr( 0x62 )
#define Clear_tm27_intr() i960_clear_intr( 6 )
#define Lower_tm27_intr()
/*
* Simple spin delay in microsecond units for device drivers.
* This is very dependent on the clock speed of the target.
*/
#define delay( microseconds ) \
{ register rtems_unsigned32 _delay=(microseconds); \
register rtems_unsigned32 _tmp = 0; /* initialized to avoid warning */ \
asm volatile( "0: \
remo 3,31,%0 ; \
cmpo 0,%0 ; \
subo 1,%1,%1 ; \
cmpobne.t 0,%1,0b " \
: "=d" (_tmp), "=d" (_delay) \
: "0" (_tmp), "1" (_delay) ); \
}
/* Constants */
#define RAM_START 0
#define RAM_END 0x100000
/* NINDY console I/O requests:
* CO sends a single character to stdout,
* CI reads one.
*/
#define NINDY_INPUT 0
#define NINDY_OUTPUT 1
/*
* get_prcb
*
* Returns the PRCB pointer.
*/
static inline i960ca_PRCB *get_prcb( void )
{
register i960ca_PRCB *_prcb = 0;
asm volatile( "calls 5; \
mov g0,%0" \
: "=d" (_prcb) \
: "0" (_prcb) );
return ( _prcb );
}
#ifdef C961_INIT
#undef BSP_EXTERN
#define BSP_EXTERN
#else
#undef BSP_EXTERN
#define BSP_EXTERN extern
#endif
/* miscellaneous stuff assumed to exist */
extern rtems_configuration_table BSP_Configuration;
BSP_EXTERN i960ca_PRCB *Prcb;
BSP_EXTERN i960ca_control_table *Ctl_tbl;
/*
* Device Driver Table Entries
*/
/*
* NOTE: Use the standard Console driver entry
*/
/*
* NOTE: Use the standard Clock driver entry
*/
/*
* How many libio files we want
*/
#define BSP_LIBIO_MAX_FDS 20
/* functions */
void bsp_cleanup( void );
i960_isr_entry set_vector( rtems_isr_entry, unsigned int, unsigned int );
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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