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Implement nanostack eventloop tick timer #10475

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Merged
merged 1 commit into from
Apr 26, 2019
Merged

Implement nanostack eventloop tick timer #10475

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56 changes: 56 additions & 0 deletions features/nanostack/nanostack-hal-mbed-cmsis-rtos/arm_hal_timer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
#include "platform/mbed_assert.h"
#include "Timeout.h"
#include "Timer.h"
#include "Ticker.h"
#include "events/Event.h"
#include "events/mbed_shared_queues.h"

Expand All @@ -45,6 +46,61 @@ static EventQueue *equeue;
static uint32_t due;
static void (*arm_hal_callback)(void);

#if defined(NS_EVENTLOOP_USE_TICK_TIMER)

#if MBED_CONF_NANOSTACK_HAL_CRITICAL_SECTION_USABLE_FROM_INTERRUPT
static SingletonPtr<Ticker> tick_ticker;
#endif

static int tick_timer_id;
static void (*tick_timer_cb)(void);

int8_t platform_tick_timer_register(void (*tick_timer_cb_handler)(void))
{
#if !MBED_CONF_NANOSTACK_HAL_CRITICAL_SECTION_USABLE_FROM_INTERRUPT
equeue = mbed_highprio_event_queue();
MBED_ASSERT(equeue != NULL);
#endif

tick_timer_cb = tick_timer_cb_handler;
return 0;
}

int8_t platform_tick_timer_start(uint32_t period_ms)
{
int8_t retval = -1;
if (tick_timer_cb && tick_timer_id == 0) {
#if !MBED_CONF_NANOSTACK_HAL_CRITICAL_SECTION_USABLE_FROM_INTERRUPT
tick_timer_id = equeue->call_every(period_ms, tick_timer_cb);
if (tick_timer_id != 0) {
retval = 0;
}
#else
tick_ticker->attach_us(tick_timer_cb, period_ms * 1000);
tick_timer_id = 1;
retval = 0;
#endif
}
return retval;
}

int8_t platform_tick_timer_stop(void)
{
int8_t retval = -1;
if (tick_timer_id != 0) {
#if !MBED_CONF_NANOSTACK_HAL_CRITICAL_SECTION_USABLE_FROM_INTERRUPT
equeue->cancel(tick_timer_id);
#else
tick_ticker->detach();
#endif
tick_timer_id = 0;
retval = 0;
}
return retval;
}
#endif // NS_EVENTLOOP_USE_TICK_TIMER


// Called once at boot
void platform_timer_enable(void)
{
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2 changes: 2 additions & 0 deletions features/nanostack/nanostack-hal-mbed-cmsis-rtos/ns_hal_init.c
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,9 @@ void ns_hal_init(void *heap, size_t h_size, void (*passed_fptr)(heap_fail_t), me
}
platform_critical_init();
ns_dyn_mem_init(heap, h_size, passed_fptr, info_ptr);
#ifndef NS_EXCLUDE_HIGHRES_TIMER
platform_timer_enable();
#endif
eventOS_scheduler_init();

// We do not initialise randlib, as it should be done after
Expand Down