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mpci: Simplify MPCI configuration

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Use watchdog for shared memory driver instead of a Classic API Timer.
This commit is contained in:
Sebastian Huber
2019-12-10 08:09:13 +01:00
parent 4686554260
commit 84aee2e982
3 changed files with 28 additions and 27 deletions
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43
bsps/shared/shmdr/shmdr-poll.c
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@@ -13,18 +13,29 @@
* http://www.rtems.org/license/LICENSE.
*/
#include <rtems.h>
#include <rtems/score/sysstate.h>
#include <rtems/libio.h>
#include <assert.h>
#include <rtems/score/watchdogimpl.h>
#include "shm_driver.h"
static rtems_timer_service_routine Shm_Poll_TSR(
rtems_id id,
void *ignored_address
)
static void Shm_Poll_Set_timer( Watchdog_Control *the_watchdog )
{
Per_CPU_Control *cpu;
ISR_lock_Context lock_context;
cpu = _Watchdog_Get_CPU( the_watchdog );
_ISR_lock_ISR_disable( &lock_context );
_Watchdog_Per_CPU_acquire_critical( cpu, &lock_context );
_Watchdog_Insert(
&cpu->Watchdog.Header[ PER_CPU_WATCHDOG_TICKS ],
the_watchdog,
cpu->Watchdog.ticks + 1
);
_Watchdog_Per_CPU_release_critical( cpu, &lock_context );
_ISR_lock_ISR_enable( &lock_context );
}
static void Shm_Poll_TSR( Watchdog_Control *the_watchdog )
{
uint32_t tmpfront;
@@ -40,18 +51,14 @@ static rtems_timer_service_routine Shm_Poll_TSR(
Shm_Interrupt_count++;
}
(void) rtems_timer_reset( id );
Shm_Poll_Set_timer( the_watchdog );
}
static Watchdog_Control Shm_Poll_Watchdog = WATCHDOG_INITIALIZER(
Shm_Poll_TSR
);
void Shm_install_timer(void)
{
rtems_id id;
rtems_status_code status;
status = rtems_timer_create( rtems_build_name( 'S', 'H', 'P', 'L' ), &id );
assert( !status );
status = rtems_timer_fire_after( id, 1, Shm_Poll_TSR, NULL );
assert( !status );
Shm_Poll_Set_timer( &Shm_Poll_Watchdog );
}