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score: Fix simple timecounter support

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Update #2502.
This commit is contained in:
Sebastian Huber
2016-01-19 08:36:14 +01:00
parent 2b9374e147
commit 76ac1ee3bb
17 changed files with 266 additions and 133 deletions
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cpukit/sapi/include/rtems/timecounter.h
+29 -6
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@@ -93,6 +93,13 @@ typedef struct {
uint32_t binary_interval;
} rtems_timecounter_simple;
/**
* @brief At tick handling done under protection of the timecounter lock.
*/
typedef void rtems_timecounter_simple_at_tick(
rtems_timecounter_simple *tc
);
/**
* @brief Returns the current value of a simple timecounter.
*/
@@ -199,20 +206,28 @@ RTEMS_INLINE_ROUTINE uint32_t rtems_timecounter_simple_scale(
*
* @param[in] tc The simple timecounter.
* @param[in] get The method to get the value of the simple timecounter.
* @param[in] at_tick The method to perform work under timecounter lock
* protection at this tick, e.g. clear a pending flag.
*/
RTEMS_INLINE_ROUTINE void rtems_timecounter_simple_downcounter_tick(
rtems_timecounter_simple *tc,
rtems_timecounter_simple_get get
rtems_timecounter_simple *tc,
rtems_timecounter_simple_get get,
rtems_timecounter_simple_at_tick at_tick
)
{
ISR_lock_Context lock_context;
uint32_t current;
_Timecounter_Acquire( &lock_context );
( *at_tick )( tc );
current = rtems_timecounter_simple_scale(
tc,
tc->real_interval - ( *get )( tc )
);
_Timecounter_Tick_simple( tc->binary_interval, current );
_Timecounter_Tick_simple( tc->binary_interval, current, &lock_context );
}
/**
@@ -220,17 +235,25 @@ RTEMS_INLINE_ROUTINE void rtems_timecounter_simple_downcounter_tick(
*
* @param[in] tc The simple timecounter.
* @param[in] get The method to get the value of the simple timecounter.
* @param[in] at_tick The method to perform work under timecounter lock
* protection at this tick, e.g. clear a pending flag.
*/
RTEMS_INLINE_ROUTINE void rtems_timecounter_simple_upcounter_tick(
rtems_timecounter_simple *tc,
rtems_timecounter_simple_get get
rtems_timecounter_simple *tc,
rtems_timecounter_simple_get get,
rtems_timecounter_simple_at_tick at_tick
)
{
ISR_lock_Context lock_context;
uint32_t current;
_Timecounter_Acquire( &lock_context );
( *at_tick )( tc );
current = rtems_timecounter_simple_scale( tc, ( *get )( tc ) );
_Timecounter_Tick_simple( tc->binary_interval, current );
_Timecounter_Tick_simple( tc->binary_interval, current, &lock_context );
}
/**