void GKI_run (void *p_task_id)
{
struct timespec delay;
int err;
volatile int * p_run_cond = &gki_cb.os.no_timer_suspend;
#ifndef GKI_NO_TICK_STOP
/* adjust btld scheduling scheme now */
gki_set_timer_scheduling();
/* register start stop function which disable timer loop in GKI_run() when no timers are
* in any GKI/BTA/BTU this should save power when BTLD is idle! */
GKI_timer_queue_register_callback( gki_system_tick_start_stop_cback );
GKI_TRACE( "GKI_run(): Start/Stop GKI_timer_update_registered!" );
#endif
#ifdef NO_GKI_RUN_RETURN
pthread_attr_t timer_attr;
shutdown_timer = 0;
pthread_attr_init(&timer_attr);
if (pthread_create( &timer_thread_id,
&timer_attr,
timer_thread,
NULL) != 0 )
{
GKI_ERROR_LOG("pthread_create failed to create timer_thread!\n\r");
return;
}
#else
GKI_TRACE("GKI_run ");
for (;;)
{
do
{
/* adjust hear bit tick in btld by changning TICKS_PER_SEC!!!!! this formula works only for
* 1-1000ms heart beat units! */
delay.tv_sec = LINUX_SEC / 1000;
delay.tv_nsec = 1000 * 1000 * (LINUX_SEC % 1000);
/* [u]sleep can't be used because it uses SIGALRM */
do
{
err = nanosleep(&delay, &delay);
} while (err < 0 && errno == EINTR);
/* the unit should be alsways 1 (1 tick). only if you vary for some reason heart beat tick
* e.g. power saving you may want to provide more ticks
*/
GKI_timer_update( 1 );
/* BT_TRACE_2( TRACE_LAYER_HCI, TRACE_TYPE_DEBUG, "update: tv_sec: %d, tv_nsec: %d", delay.tv_sec, delay.tv_nsec ); */
} while ( GKI_TIMER_TICK_RUN_COND == *p_run_cond );
/* currently on reason to exit above loop is no_timer_suspend == GKI_TIMER_TICK_STOP_COND
* block timer main thread till re-armed by */
GKI_TIMER_TRACE(">>> SUSPENDED GKI_timer_update()" );
pthread_mutex_lock( &gki_cb.os.gki_timer_mutex );
pthread_cond_wait( &gki_cb.os.gki_timer_cond, &gki_cb.os.gki_timer_mutex );
pthread_mutex_unlock( &gki_cb.os.gki_timer_mutex );
/* potentially we need to adjust os gki_cb.com.OSTicks */
GKI_TIMER_TRACE(">>> RESTARTED GKI_timer_update(): run_cond: %d",
*p_run_cond );
}
#endif
return;
}
void GKI_run(void)
{
/* adjust btld scheduling scheme now */
gki_set_timer_scheduling();
GKI_TRACE( "GKI_run(): Start/Stop GKI_timer_update_registered!" );
}
