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/*
* This include file contains all board IO definitions.
*
* generic sh1
*
* Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
*
* COPYRIGHT (c) 1997-1998, FAW Ulm, Germany
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
*
* COPYRIGHT (c) 1998.
* 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 __gensh1_h
#define __gensh1_h
#ifdef __cplusplus
extern "C" {
#endif
#define CPU_CONSOLE_DEVNAME "/dev/null"
#include <rtems.h>
#include <clockdrv.h>
#include <sh/null.h>
#include <console.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 ) \
{ \
rtems_isr_entry ignored ; \
rtems_interrupt_catch( (handler), 0, &ignored ) ; \
}
#define Cause_tm27_intr()
#define Clear_tm27_intr()
#define Lower_tm27_intr()
/* Constants */
#ifndef MHZ
#error Missing MHZ
#endif
/*
* Simple spin delay in microsecond units for device drivers.
* This is very dependent on the clock speed of the target.
*
* Since we don't have a real time clock, this is a very rough
* approximation, assuming that each cycle of the delay loop takes
* approx. 4 machine cycles.
*
* e.g.: MHZ = 20 => 5e-8 secs per instruction
* => 4 * 5e-8 secs per delay loop
*/
#define delay( microseconds ) \
{ register unsigned int _delay = (microseconds) * (MHZ / 4 ); \
asm volatile ( \
"0: add #-1,%0\n \
nop\n \
cmp/pl %0\n \
bt 0b\
nop" \
:: "r" (_delay) ); \
}
/*
* For backward compatibility only.
* Do not rely on them being present in future
*/
#define CPU_delay( microseconds ) delay( microseconds )
#define sh_delay( microseconds ) delay( microseconds )
/*
* Defined in the linker script 'linkcmds'
*/
extern unsigned32 HeapStart ;
extern unsigned32 HeapEnd ;
extern unsigned32 WorkSpaceStart ;
extern unsigned32 WorkSpaceEnd ;
extern void *CPU_Interrupt_stack_low ;
extern void *CPU_Interrupt_stack_high ;
/* miscellaneous stuff assumed to exist */
extern rtems_configuration_table BSP_Configuration;
extern void bsp_cleanup( void );
/*
* Device Driver Table Entries
*/
/*
* We redefine CONSOLE_DRIVER_TABLE_ENTRY to redirect /dev/console
*/
#if defined(CONSOLE_DRIVER_TABLE_ENTRY)
#warning Overwriting CONSOLE_DRIVER_TABLE_ENTRY
#undef CONSOLE_DRIVER_TABLE_ENTRY
#endif
#define CONSOLE_DRIVER_TABLE_ENTRY \
DEVNULL_DRIVER_TABLE_ENTRY, \
{ console_initialize, console_open, console_close, \
console_read, console_write, console_control }
/*
* NOTE: Use the standard Clock driver entry
*/
/*
* FIXME: Should this go to libcpu/sh/sh7032 ?
*/
#if 0
/* functions */
sh_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
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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