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/*
* COPYRIGHT (c) 1989-2003.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <stdio.h>
#include <stdlib.h>
#include <bsp.h>
#include <rtems/score/timespec.h> /* _Timespec_Substract */
struct timespec start;
#if defined(INCLUDE_TO_ISR)
struct timespec to_isr;
#endif
struct timespec stop_in_task;
rtems_id semaphore;
rtems_id task_id;
void irqforce(int);
void ISR( uint32_t arg )
{
rtems_status_code status;
#if defined(INCLUDE_TO_ISR)
_TOD_Get( &to_isr );
#endif
status = rtems_semaphore_release( semaphore );
}
rtems_task ISR_Task(
rtems_task_argument argument
)
{
rtems_status_code status;
struct timespec diff1, diff2;
#define print_timespec( _t ) \
printf ( "%ld:%ld ", (long) _t.tv_sec, (long) _t.tv_nsec );
/*
* Print base overhead
*/
_TOD_Get( &start );
_TOD_Get( &stop_in_task );
_Timespec_Subtract( &start, &stop_in_task, &diff1 );
printf( "Timer Overhead: " );
print_timespec( start );
print_timespec( stop_in_task );
printf( "--> " );
print_timespec( diff1 );
printf( "\n" );
while (1) {
status = rtems_semaphore_obtain( semaphore, RTEMS_WAIT, RTEMS_NO_TIMEOUT );
_TOD_Get( &stop_in_task );
_Timespec_Subtract( &start, &stop_in_task, &diff2 );
print_timespec( start );
#if defined(INCLUDE_TO_ISR)
_Timespec_Subtract( &start, &to_isr, &diff1 );
print_timespec( to_isr );
#endif
print_timespec( stop_in_task );
printf( "--> " );
#if defined(INCLUDE_TO_ISR)
print_timespec( diff1 );
#endif
print_timespec( diff2 );
printf( "\n" );
}
}
rtems_task Init(
rtems_task_argument argument
)
{
rtems_status_code status;
rtems_time_of_day time;
int i;
puts( "\n\n*** IRQ FORCE TEST ***" );
time.year = 2007;
time.month = 10;
time.day = 17;
time.hour = 13;
time.minute = 45;
time.second = 0;
time.ticks = 0;
status = rtems_clock_set( &time );
/*
* Create the simple semaphore used to wake us up
*/
status = rtems_semaphore_create(
rtems_build_name( 'A', 'I', 'S', 'R' ),
0,
RTEMS_SIMPLE_BINARY_SEMAPHORE | RTEMS_FIFO,
0,
&semaphore
);
status = rtems_task_create(
rtems_build_name( 'A', 'I', 'S', 'R' ),
1, RTEMS_MINIMUM_STACK_SIZE, RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES, &task_id
);
status = rtems_task_start( task_id, ISR_Task, 1 );
/*
* Now generate the interrupt and time it
*/
set_vector( ISR, 17, 1 );
for ( i=0 ; i<= 10 ; i++ ) {
sleep(1);
_TOD_Get( &start );
irqforce(1);
}
sleep(1);
exit( 0 );
}
/**************** START OF CONFIGURATION INFORMATION ****************/
#define CONFIGURE_INIT
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 4
#define CONFIGURE_MAXIMUM_SEMAPHORES 1
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT_TASK_PRIORITY 5
#define CONFIGURE_INIT_TASK_INITIAL_MODES RTEMS_PREEMPT
#define CONFIGURE_EXTRA_TASK_STACKS (3 * RTEMS_MINIMUM_STACK_SIZE)
#include <rtems/confdefs.h>
/**************** END OF CONFIGURATION INFORMATION ****************/
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