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/* bsp.h
*
* This include file contains all Papyrus board IO definitions.
*
* Author: Andrew Bray <andy@i-cubed.demon.co.uk>
*
* COPYRIGHT (c) 1995 by i-cubed ltd.
*
* To anyone who acknowledges that this file is provided "AS IS"
* without any express or implied warranty:
* permission to use, copy, modify, and distribute this file
* for any purpose is hereby granted without fee, provided that
* the above copyright notice and this notice appears in all
* copies, and that the name of i-cubed limited not be used in
* advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
* i-cubed limited makes no representations about the suitability
* of this software for any purpose.
*
* Derived from c/src/lib/libbsp/no_cpu/no_bsp/include/bsp.h
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* 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.
*
* bsp.h,v 1.2 1995/05/31 16:56:13 joel Exp
*/
#ifndef __PAPYRUS_h
#define __PAPYRUS_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>
/*
* 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 0
#define Install_tm27_vector( handler ) set_vector( (handler), PPC_IRQ_SCALL, 1 )
#define Cause_tm27_intr() asm volatile ("sc")
#define Clear_tm27_intr()
#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 ) \
{ \
unsigned32 start, ticks, now; \
asm volatile ("mftblo %0" : "=r" (start)); \
ticks = (microseconds) * Cpu_table.clicks_per_usec; \
do \
asm volatile ("mftblo %0" : "=r" (now)); \
while (now - start < ticks); \
}
/* Constants */
#define RAM_START 0
#define RAM_END 0x00200000
/* miscellaneous stuff assumed to exist */
extern rtems_configuration_table BSP_Configuration; /* owned by BSP */
extern rtems_cpu_table Cpu_table; /* owned by BSP */
/* functions */
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 */
);
#endif /* ASM */
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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