C++ (Cpp) GTBCR_COUNT Examples

Example #1

File: clock-config.c Project: gedare/rtems

static void qoriq_clock_initialize(void)
{
  uint32_t timer_frequency = BSP_bus_frequency / 8;
  uint32_t interval = (uint32_t) (((uint64_t) timer_frequency
    * (uint64_t) rtems_configuration_get_microseconds_per_tick()) / 1000000);

  qoriq_clock->bcr = GTBCR_COUNT(interval);

  qoriq_timecounter->bcr = GTBCR_COUNT(0xffffffff);

  qoriq_clock_tc.tc_get_timecount = qoriq_clock_get_timecount;
  qoriq_clock_tc.tc_counter_mask = GTCCR_COUNT_GET(0xffffffff);
  qoriq_clock_tc.tc_frequency = timer_frequency;
  qoriq_clock_tc.tc_quality = RTEMS_TIMECOUNTER_QUALITY_CLOCK_DRIVER;
  rtems_timecounter_install(&qoriq_clock_tc);
}

Example #2

File: clock-config.c Project: rtemss/rtems

static void qoriq_clock_initialize(void)
{
  uint32_t timer_frequency = BSP_bus_frequency / 8;
  uint32_t nanoseconds_per_second = 1000000000;
  uint32_t interval = (uint32_t) (((uint64_t) timer_frequency
    * (uint64_t) rtems_configuration_get_microseconds_per_tick()) / 1000000);

  qoriq_clock_nanoseconds_per_timer_tick =
    nanoseconds_per_second / timer_frequency;

  qoriq_clock->bcr = GTBCR_COUNT(interval);
}