Merge pull request #4644 from 0xc0170/fix_ticker_delta_negative

Ticker: add fire interrupt now function
pull/4792/head
Jimmy Brisson 2017-07-17 11:05:46 -05:00 committed by GitHub
commit adfed0f9de
69 changed files with 569 additions and 363 deletions

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@ -42,6 +42,7 @@ struct ticker_interface_stub_t {
unsigned int disable_interrupt_call;
unsigned int clear_interrupt_call;
unsigned int set_interrupt_call;
unsigned int fire_interrupt_call;
};
static ticker_interface_stub_t interface_stub = { 0 };
@ -75,6 +76,11 @@ static void ticker_interface_stub_set_interrupt(timestamp_t timestamp)
interface_stub.interrupt_timestamp = timestamp;
}
static void ticker_interface_stub_fire_interrupt()
{
++interface_stub.fire_interrupt_call;
}
static void reset_ticker_interface_stub()
{
interface_stub.interface.init = ticker_interface_stub_init;
@ -84,6 +90,7 @@ static void reset_ticker_interface_stub()
interface_stub.interface.clear_interrupt =
ticker_interface_stub_clear_interrupt;
interface_stub.interface.set_interrupt =ticker_interface_stub_set_interrupt;
interface_stub.interface.fire_interrupt = ticker_interface_stub_fire_interrupt;
interface_stub.initialized = false;
interface_stub.interrupt_flag = false;
interface_stub.timestamp = 0;
@ -93,6 +100,7 @@ static void reset_ticker_interface_stub()
interface_stub.disable_interrupt_call = 0;
interface_stub.clear_interrupt_call = 0;
interface_stub.set_interrupt_call = 0;
interface_stub.fire_interrupt_call = 0;
}
// stub of the event queue
@ -949,11 +957,7 @@ static void test_insert_event_us_underflow()
);
TEST_ASSERT_EQUAL_PTR(&event, queue_stub.head);
TEST_ASSERT_EQUAL_UINT32(
interface_stub.timestamp,
interface_stub.interrupt_timestamp
);
TEST_ASSERT_EQUAL(1, interface_stub.set_interrupt_call);
TEST_ASSERT_EQUAL(1, interface_stub.fire_interrupt_call);
TEST_ASSERT_EQUAL(0, interface_stub.disable_interrupt_call);
}
@ -1982,6 +1986,58 @@ static void test_irq_handler_insert_non_immediate_in_irq()
TEST_ASSERT_EQUAL(0, interface_stub.disable_interrupt_call);
}
static uint32_t ticker_interface_stub_read_interrupt_time()
{
++interface_stub.read_call;
// only if set interrupt call, to test the condition afterwards
if (interface_stub.set_interrupt_call) {
return interface_stub.interrupt_timestamp;
} else {
return interface_stub.timestamp;
}
}
/**
* Test to insert an event that is already in the past, the fire_interrupt should
* be invoked, instead of set_interrupt
*/
static void test_set_interrupt_past_time()
{
interface_stub.set_interrupt_call = 0;
interface_stub.fire_interrupt_call = 0;
interface_stub.timestamp = 0xFF;
// This tests fire now functinality when next_event_timestamp <= present
ticker_event_t event = { 0 };
const timestamp_t event_timestamp = interface_stub.timestamp;
const uint32_t id_last_event = 0xDEADDEAF;
ticker_insert_event(&ticker_stub, &event, event_timestamp, id_last_event);
TEST_ASSERT_EQUAL(0, interface_stub.set_interrupt_call);
TEST_ASSERT_EQUAL(1, interface_stub.fire_interrupt_call);
}
/**
* Test to insert an event that is being delayed, set_interrupt is set
* but then event is already in the past, thus fire_interrupt should be invoked right-away
*/
static void test_set_interrupt_past_time_with_delay()
{
interface_stub.set_interrupt_call = 0;
interface_stub.fire_interrupt_call = 0;
interface_stub.timestamp = 0xFF;
// This tests fire now functionality when present time >= new_match_time
interface_stub.interface.read = ticker_interface_stub_read_interrupt_time;
ticker_event_t event = { 0 };
const timestamp_t event_timestamp = interface_stub.timestamp + 5;
const uint32_t id_last_event = 0xDEADDEAF;
ticker_insert_event(&ticker_stub, &event, event_timestamp, id_last_event);
TEST_ASSERT_EQUAL(1, interface_stub.set_interrupt_call);
TEST_ASSERT_EQUAL(1, interface_stub.fire_interrupt_call);
}
static const case_t cases[] = {
MAKE_TEST_CASE("ticker initialization", test_ticker_initialization),
MAKE_TEST_CASE(
@ -2066,6 +2122,14 @@ static const case_t cases[] = {
MAKE_TEST_CASE(
"test_irq_handler_insert_non_immediate_in_irq",
test_irq_handler_insert_non_immediate_in_irq
),
MAKE_TEST_CASE(
"test_set_interrupt_past_time",
test_set_interrupt_past_time
),
MAKE_TEST_CASE(
"test_set_interrupt_past_time_with_delay",
test_set_interrupt_past_time_with_delay
)
};
@ -2079,4 +2143,4 @@ int main()
{
Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
return !Harness::run(specification);
}
}

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@ -74,6 +74,12 @@ void lp_ticker_disable_interrupt(void);
*/
void lp_ticker_clear_interrupt(void);
/** Set pending interrupt that should be fired right away.
*
* The ticker should be initialized prior calling this function.
*/
void lp_ticker_fire_interrupt(void);
/**@}*/
#ifdef __cplusplus

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@ -25,6 +25,7 @@ static const ticker_interface_t lp_interface = {
.disable_interrupt = lp_ticker_disable_interrupt,
.clear_interrupt = lp_ticker_clear_interrupt,
.set_interrupt = lp_ticker_set_interrupt,
.fire_interrupt = lp_ticker_fire_interrupt,
};
static const ticker_data_t lp_data = {

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@ -117,14 +117,23 @@ static void schedule_interrupt(const ticker_data_t *const ticker)
// if the event at the head of the queue is in the past then schedule
// it immediately.
if (next_event_timestamp < present) {
relative_timeout = 0;
if (next_event_timestamp <= present) {
ticker->interface->fire_interrupt();
return;
} else if ((next_event_timestamp - present) < MBED_TICKER_INTERRUPT_TIMESTAMP_MAX_DELTA) {
relative_timeout = next_event_timestamp - present;
}
}
ticker->interface->set_interrupt(ticker->queue->present_time + relative_timeout);
us_timestamp_t new_match_time = ticker->queue->present_time + relative_timeout;
ticker->interface->set_interrupt(new_match_time);
// there could be a delay, reread the time, check if it was set in the past
// As result, if it is already in the past, we fire it immediately
update_present_time(ticker);
us_timestamp_t present = ticker->queue->present_time;
if (present >= new_match_time) {
ticker->interface->fire_interrupt();
}
}
void ticker_set_handler(const ticker_data_t *const ticker, ticker_event_handler handler)

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@ -23,6 +23,7 @@ static const ticker_interface_t us_interface = {
.disable_interrupt = us_ticker_disable_interrupt,
.clear_interrupt = us_ticker_clear_interrupt,
.set_interrupt = us_ticker_set_interrupt,
.fire_interrupt = us_ticker_fire_interrupt,
};
static const ticker_data_t us_data = {

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@ -60,6 +60,7 @@ typedef struct {
void (*disable_interrupt)(void); /**< Disable interrupt function */
void (*clear_interrupt)(void); /**< Clear interrupt function */
void (*set_interrupt)(timestamp_t timestamp); /**< Set interrupt function */
void (*fire_interrupt)(void); /**< Fire interrupt right-away */
} ticker_interface_t;
/** Ticker's event queue structure

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@ -72,6 +72,12 @@ void us_ticker_disable_interrupt(void);
*/
void us_ticker_clear_interrupt(void);
/** Set pending interrupt that should be fired right away.
*
* The ticker should be initialized prior calling this function.
*/
void us_ticker_fire_interrupt(void);
/**@}*/
#ifdef __cplusplus

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@ -115,27 +115,24 @@ uint32_t lp_ticker_read(void)
*/
void lp_ticker_set_interrupt(timestamp_t timestamp)
{
int32_t delta = 0;
/* Verify if lp_ticker has been not Initialized */
if (lp_ticker_initialized == 0)
lp_ticker_init();
/* Calculate the delta */
delta = (int32_t)(timestamp - lp_ticker_read());
/* Check if the event was in the past */
if (delta <= 0) {
/* This event was in the past */
DualTimer_SetInterrupt_1(DUALTIMER0, 0,
DUALTIMER_COUNT_32 | DUALTIMER_ONESHOT);
return;
}
uint32_t delta = timestamp - lp_ticker_read();
/* Enable interrupt on SingleTimer1 */
DualTimer_SetInterrupt_1(DUALTIMER0, delta,
DUALTIMER_COUNT_32 | DUALTIMER_ONESHOT);
}
void lp_ticker_fire_interrupt(void)
{
uint32_t lp_ticker_irqn = DualTimer_GetIRQn(DUALTIMER0);
NVIC_SetPendingIRQ((IRQn_Type)lp_ticker_irqn);
}
/**
* Disable low power ticker interrupt
*/

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@ -91,22 +91,19 @@ uint32_t us_ticker_read() {
}
void us_ticker_set_interrupt(timestamp_t timestamp) {
int32_t delta = 0;
if (!us_ticker_inited)
us_ticker_init();
delta = (int32_t)(timestamp - us_ticker_read());
/* Check if the event was in the past */
if (delta <= 0) {
/* This event was in the past */
Timer_SetInterrupt(TIMER0, 0);
return;
}
/* If the event was not in the past enable interrupt */
uint32_t delta = timestamp - us_ticker_read();
Timer_SetInterrupt(TIMER0, delta);
}
void us_ticker_fire_interrupt(void)
{
uint32_t us_ticker_irqn1 = Timer_GetIRQn(TIMER1);
NVIC_SetPendingIRQ((IRQn_Type)us_ticker_irqn1);
}
void us_ticker_disable_interrupt(void) {
Timer_DisableInterrupt(TIMER0);
}

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@ -108,22 +108,23 @@ uint32_t us_ticker_read()
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int32_t delta = 0;
uint32_t delta = 0;
if (!us_ticker_drv_data.inited) {
us_ticker_init();
}
delta = (int32_t)(timestamp - us_ticker_read());
delta = timestamp - us_ticker_read();
/* Check if the event was in the past */
if (delta <= 0) {
/* This event was in the past */
Timer_SetInterrupt(TIMER0, 0);
} else {
/* If the event was not in the past enable interrupt */
Timer_SetInterrupt(TIMER0, delta);
}
/* If the event was not in the past enable interrupt */
Timer_SetInterrupt(TIMER0, delta);
}
void us_ticker_fire_interrupt(void)
{
uint32_t us_ticker_irqn1 = Timer_GetIRQn(TIMER1);
NVIC_SetPendingIRQ((IRQn_Type)us_ticker_irqn1);
}
void us_ticker_disable_interrupt(void)

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@ -69,6 +69,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
US_TICKER_TIMER1->TimerControl |= 0x80; //enable timer
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
US_TICKER_TIMER1->TimerControl &= 0xDF;

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@ -51,15 +51,10 @@ uint32_t return_value = 0;
}
void us_ticker_set_interrupt(timestamp_t timestamp) {
int delta = 0;
if (!us_ticker_inited)
us_ticker_init();
delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past:
us_ticker_irq_handler();
return;
}
uint32_t delta = timestamp - us_ticker_read();
// enable interrupt
US_TICKER_TIMER1->TimerControl = 0x0; // disable timer
US_TICKER_TIMER1->TimerControl = 0x62; // enable interrupt and set to 32 bit counter and set to periodic mode
@ -67,6 +62,12 @@ int delta = 0;
US_TICKER_TIMER1->TimerControl |= 0x80; //enable timer
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
US_TICKER_TIMER1->TimerControl &= 0xDF;

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@ -86,15 +86,10 @@ uint32_t lp_ticker_read()
void lp_ticker_set_interrupt(timestamp_t timestamp)
{
uint32_t cur_time;
int32_t delta;
uint32_t delta;
cur_time = lp_ticker_read();
delta = (int32_t)((uint32_t)timestamp - cur_time);
if (delta < 0) {
/* Event already occurred in past */
lp_ticker_irq_handler();
return;
}
delta = timestamp - cur_time;
uint16_t interruptat=0;
@ -120,6 +115,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
tc_start(TICKER_COUNTER_lp, TICKER_COUNTER_CHANNEL2);
}
void lp_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(TICKER_COUNTER_IRQn2);
}
void lp_ticker_disable_interrupt(void)
{
tc_stop(TICKER_COUNTER_lp, TICKER_COUNTER_CHANNEL2);

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@ -170,6 +170,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
tc_start(TICKER_COUNTER_uS, TICKER_COUNTER_CHANNEL1);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(TICKER_COUNTER_IRQn1);
}
void us_ticker_disable_interrupt(void)
{
tc_stop(TICKER_COUNTER_uS, TICKER_COUNTER_CHANNEL1);

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@ -138,13 +138,7 @@ static void ticker_isr(void) {
}
void us_ticker_set_interrupt(timestamp_t timestamp) {
int delta = (int)((uint32_t)timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past:
us_ticker_irq_handler();
return;
}
uint32_t delta = timestamp - us_ticker_read();
//Calculate how much falls outside the 32-bit after multiplying with clk_mhz
//We shift twice 16-bit to keep everything within the 32-bit variable
us_ticker_int_counter = (uint32_t)(delta >> 16);
@ -159,3 +153,8 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
ticker_set(us_ticker_int_remainder);
}
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(PIT_TICKER_IRQ);
}

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@ -70,15 +70,14 @@ void us_ticker_clear_interrupt(void) {
}
void us_ticker_set_interrupt(timestamp_t timestamp) {
int delta = (int)((uint32_t)timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past:
us_ticker_irq_handler();
return;
}
uint32_t delta = timestamp - us_ticker_read();
PIT->CHANNEL[3].TCTRL = 0;
PIT->CHANNEL[3].LDVAL = delta;
PIT->CHANNEL[3].TCTRL = PIT_TCTRL_TIE_MASK | PIT_TCTRL_TEN_MASK | PIT_TCTRL_CHN_MASK;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(PIT3_IRQn);
}

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@ -185,13 +185,7 @@ static void lptmr_isr(void) {
}
void us_ticker_set_interrupt(timestamp_t timestamp) {
int delta = (int)((uint32_t)timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past. Force it into the very near
// future instead.
delta = 1;
}
uint32_t delta = timestamp - us_ticker_read();
us_ticker_int_counter = (uint32_t)(delta >> 16);
us_ticker_int_remainder = (uint16_t)(0xFFFF & delta);
if (us_ticker_int_counter > 0) {
@ -202,3 +196,13 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
us_ticker_int_remainder = 0;
}
}
void us_ticker_fire_interrupt(void)
{
#if defined(TARGET_KL43Z)
NVIC_SetPendingIRQ(LPTMR0_IRQn);
#else
NVIC_SetPendingIRQ(LPTimer_IRQn);
#endif
}

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@ -73,16 +73,7 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(PIT3_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
PIT_StopTimer(PIT, kPIT_Chnl_3);
PIT_StopTimer(PIT, kPIT_Chnl_2);
PIT_SetTimerPeriod(PIT, kPIT_Chnl_3, (uint32_t)delta);
@ -90,3 +81,8 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
PIT_StartTimer(PIT, kPIT_Chnl_3);
PIT_StartTimer(PIT, kPIT_Chnl_2);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(PIT3_IRQn);
}

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@ -73,16 +73,7 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(PIT3_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
PIT_StopTimer(PIT, kPIT_Chnl_3);
PIT_StopTimer(PIT, kPIT_Chnl_2);
PIT_SetTimerPeriod(PIT, kPIT_Chnl_3, (uint32_t)delta);
@ -90,3 +81,8 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
PIT_StartTimer(PIT, kPIT_Chnl_3);
PIT_StartTimer(PIT, kPIT_Chnl_2);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(PIT3_IRQn);
}

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@ -82,18 +82,14 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(LPTMR0_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
LPTMR_StopTimer(LPTMR0);
LPTMR_SetTimerPeriod(LPTMR0, (uint32_t)delta);
LPTMR_EnableInterrupts(LPTMR0, kLPTMR_TimerInterruptEnable);
LPTMR_StartTimer(LPTMR0);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(LPTMR0_IRQn);
}

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@ -82,18 +82,14 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(LPTMR0_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
LPTMR_StopTimer(LPTMR0);
LPTMR_SetTimerPeriod(LPTMR0, (uint32_t)delta);
LPTMR_EnableInterrupts(LPTMR0, kLPTMR_TimerInterruptEnable);
LPTMR_StartTimer(LPTMR0);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(LPTMR0_IRQn);
}

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@ -73,16 +73,7 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(PIT0_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
PIT_StopTimer(PIT, kPIT_Chnl_3);
PIT_StopTimer(PIT, kPIT_Chnl_2);
PIT_SetTimerPeriod(PIT, kPIT_Chnl_3, (uint32_t)delta);
@ -90,3 +81,9 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
PIT_StartTimer(PIT, kPIT_Chnl_3);
PIT_StartTimer(PIT, kPIT_Chnl_2);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(PIT0_IRQn);
}

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@ -73,16 +73,7 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(PIT3_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
PIT_StopTimer(PIT, kPIT_Chnl_3);
PIT_StopTimer(PIT, kPIT_Chnl_2);
PIT_SetTimerPeriod(PIT, kPIT_Chnl_3, (uint32_t)delta);
@ -90,3 +81,8 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
PIT_StartTimer(PIT, kPIT_Chnl_3);
PIT_StartTimer(PIT, kPIT_Chnl_2);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(PIT3_IRQn);
}

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@ -77,18 +77,14 @@ void us_ticker_clear_interrupt(void) {
}
void us_ticker_set_interrupt(timestamp_t timestamp) {
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(LPTMR0_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
LPTMR_StopTimer(LPTMR0);
LPTMR_SetTimerPeriod(LPTMR0, (uint32_t)delta);
LPTMR_EnableInterrupts(LPTMR0, kLPTMR_TimerInterruptEnable);
LPTMR_StartTimer(LPTMR0);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(LPTMR0_IRQn);
}

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@ -73,16 +73,7 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(PIT3_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
PIT_StopTimer(PIT, kPIT_Chnl_3);
PIT_StopTimer(PIT, kPIT_Chnl_2);
PIT_SetTimerPeriod(PIT, kPIT_Chnl_3, (uint32_t)delta);
@ -90,3 +81,8 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
PIT_StartTimer(PIT, kPIT_Chnl_3);
PIT_StartTimer(PIT, kPIT_Chnl_2);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(PIT3_IRQn);
}

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@ -73,16 +73,7 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(PIT3_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
PIT_StopTimer(PIT, kPIT_Chnl_3);
PIT_StopTimer(PIT, kPIT_Chnl_2);
PIT_SetTimerPeriod(PIT, kPIT_Chnl_3, (uint32_t)delta);
@ -90,3 +81,8 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
PIT_StartTimer(PIT, kPIT_Chnl_3);
PIT_StartTimer(PIT, kPIT_Chnl_2);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(PIT3_IRQn);
}

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@ -73,16 +73,7 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
int delta = (int)(timestamp - us_ticker_read());
if (delta <= 0) {
// This event was in the past.
// Set the interrupt as pending, but don't process it here.
// This prevents a recurive loop under heavy load
// which can lead to a stack overflow.
NVIC_SetPendingIRQ(PIT3_IRQn);
return;
}
uint32_t delta = timestamp - us_ticker_read();
PIT_StopTimer(PIT, kPIT_Chnl_3);
PIT_StopTimer(PIT, kPIT_Chnl_2);
PIT_SetTimerPeriod(PIT, kPIT_Chnl_3, (uint32_t)delta);
@ -90,3 +81,8 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
PIT_StartTimer(PIT, kPIT_Chnl_3);
PIT_StartTimer(PIT, kPIT_Chnl_2);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(PIT3_IRQn);
}

View File

@ -163,6 +163,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
}
}
void lp_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(LPTMR0_IRQn);
}
/** Disable low power ticker interrupt
*
*/
@ -180,4 +185,5 @@ void lp_ticker_clear_interrupt(void)
RTC->TAR = 0; /* Write clears the IRQ flag */
LPTMR_ClearStatusFlags(LPTMR0, kLPTMR_TimerCompareFlag);
}
#endif /* DEVICE_LOWPOWERTIMER */

View File

@ -229,6 +229,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
MXC_PWRSEQ->msk_flags &= ~MXC_F_PWRSEQ_MSK_FLAGS_RTC_CMPR0;
}
void lp_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(RTC0_IRQn);
}
//******************************************************************************
inline void lp_ticker_disable_interrupt(void)
{

View File

@ -234,6 +234,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
US_TIMER->ctrl |= MXC_F_TMR_CTRL_ENABLE0; // enable timer
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TIMER_IRQn);
}
//******************************************************************************
void us_ticker_disable_interrupt(void)
{

View File

@ -229,6 +229,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
MXC_PWRSEQ->msk_flags &= ~MXC_F_PWRSEQ_MSK_FLAGS_RTC_CMPR0;
}
void lp_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(RTC0_IRQn);
}
//******************************************************************************
inline void lp_ticker_disable_interrupt(void)
{

View File

@ -234,6 +234,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
US_TIMER->ctrl |= MXC_F_TMR_CTRL_ENABLE0; // enable timer
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TIMER_IRQn);
}
//******************************************************************************
void us_ticker_disable_interrupt(void)
{

View File

@ -281,6 +281,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
while(MXC_RTCTMR->ctrl & MXC_F_RTC_CTRL_PENDING);
}
void lp_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(RTC0_IRQn);
}
//******************************************************************************
inline void lp_ticker_disable_interrupt(void)
{

View File

@ -265,6 +265,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
US_TIMER->ctrl |= MXC_F_TMR_CTRL_ENABLE0; // enable timer
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TIMER_IRQn);
}
//******************************************************************************
void us_ticker_disable_interrupt(void)
{

View File

@ -234,6 +234,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
while (MXC_RTCTMR->ctrl & MXC_F_RTC_CTRL_PENDING);
}
void lp_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(RTC0_IRQn);
}
//******************************************************************************
inline void lp_ticker_disable_interrupt(void)
{

View File

@ -228,6 +228,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
TMR32_Start(US_TIMER);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TIMER_IRQn);
}
//******************************************************************************
void us_ticker_disable_interrupt(void)
{

View File

@ -234,6 +234,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
while (MXC_RTCTMR->ctrl & MXC_F_RTC_CTRL_PENDING);
}
void lp_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(RTC0_IRQn);
}
//******************************************************************************
inline void lp_ticker_disable_interrupt(void)
{

View File

@ -228,6 +228,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
TMR32_Start(US_TIMER);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TIMER_IRQn);
}
//******************************************************************************
void us_ticker_disable_interrupt(void)
{

View File

@ -285,6 +285,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
}
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(RTC1_IRQn);
}
void us_ticker_disable_interrupt(void)
{
if (us_ticker_callbackPending) {

View File

@ -35,6 +35,14 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
LP_TICKER_CC_CHANNEL, LP_TICKER_INT_MASK);
}
void lp_ticker_fire_interrupt(void)
{
uint32_t closest_safe_compare = common_rtc_32bit_ticks_get() + 2;
nrf_rtc_cc_set(COMMON_RTC_INSTANCE, LP_TICKER_CC_CHANNEL, RTC_WRAP(closest_safe_compare));
nrf_rtc_event_enable(COMMON_RTC_INSTANCE, LP_TICKER_INT_MASK);
}
void lp_ticker_disable_interrupt(void)
{
nrf_rtc_event_disable(COMMON_RTC_INSTANCE, LP_TICKER_INT_MASK);

View File

@ -271,6 +271,14 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
US_TICKER_CC_CHANNEL, US_TICKER_INT_MASK);
}
void us_ticker_fire_interrupt(void)
{
uint32_t closest_safe_compare = common_rtc_32bit_ticks_get() + 2;
nrf_rtc_cc_set(COMMON_RTC_INSTANCE, US_TICKER_CC_CHANNEL, RTC_WRAP(closest_safe_compare));
nrf_rtc_event_enable(COMMON_RTC_INSTANCE, US_TICKER_INT_MASK);
}
void us_ticker_disable_interrupt(void)
{
nrf_rtc_event_disable(COMMON_RTC_INSTANCE, US_TICKER_INT_MASK);

View File

@ -145,31 +145,23 @@ timestamp_t lp_ticker_read()
void lp_ticker_set_interrupt(timestamp_t timestamp)
{
uint32_t now = lp_ticker_read();
uint32_t delta = timestamp - lp_ticker_read();
wakeup_tick = timestamp;
TIMER_Stop((TIMER_T *) NU_MODBASE(timer3_modinit.modname));
cd_major_minor_clks = (uint64_t) delta * US_PER_TICK * TMR3_CLK_PER_SEC / US_PER_SEC;
lp_ticker_arm_cd();
}
void lp_ticker_fire_interrupt(void)
{
cd_major_minor_clks = cd_minor_clks = 0;
/**
* FIXME: Scheduled alarm may go off incorrectly due to wrap around.
* Conditions in which delta is negative:
* 1. Wrap around
* 2. Newly scheduled alarm is behind now
*/
//int delta = (timestamp > now) ? (timestamp - now) : (uint32_t) ((uint64_t) timestamp + 0xFFFFFFFFu - now);
int delta = (int) (timestamp - now);
if (delta > 0) {
cd_major_minor_clks = (uint64_t) delta * US_PER_TICK * TMR3_CLK_PER_SEC / US_PER_SEC;
lp_ticker_arm_cd();
}
else {
cd_major_minor_clks = cd_minor_clks = 0;
/**
* This event was in the past. Set the interrupt as pending, but don't process it here.
* This prevents a recurive loop under heavy load which can lead to a stack overflow.
*/
NVIC_SetPendingIRQ(timer3_modinit.irq_n);
}
* This event was in the past. Set the interrupt as pending, but don't process it here.
* This prevents a recurive loop under heavy load which can lead to a stack overflow.
*/
NVIC_SetPendingIRQ(timer3_modinit.irq_n);
}
void lp_ticker_disable_interrupt(void)

View File

@ -150,19 +150,19 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
{
TIMER_Stop((TIMER_T *) NU_MODBASE(timer1hires_modinit.modname));
int delta = (int) (timestamp - us_ticker_read());
if (delta > 0) {
cd_major_minor_us = delta * US_PER_TICK;
us_ticker_arm_cd();
}
else {
cd_major_minor_us = cd_minor_us = 0;
/**
* This event was in the past. Set the interrupt as pending, but don't process it here.
* This prevents a recurive loop under heavy load which can lead to a stack overflow.
*/
NVIC_SetPendingIRQ(timer1hires_modinit.irq_n);
}
uint32_t delta = timestamp - us_ticker_read();
cd_major_minor_us = delta * US_PER_TICK;
us_ticker_arm_cd();
}
void us_ticker_fire_interrupt(void)
{
cd_major_minor_us = cd_minor_us = 0;
/**
* This event was in the past. Set the interrupt as pending, but don't process it here.
* This prevents a recurive loop under heavy load which can lead to a stack overflow.
*/
NVIC_SetPendingIRQ(timer1hires_modinit.irq_n);
}
static void tmr0_vec(void)

View File

@ -144,31 +144,23 @@ timestamp_t lp_ticker_read()
void lp_ticker_set_interrupt(timestamp_t timestamp)
{
uint32_t now = lp_ticker_read();
uint32_t delta = timestamp - lp_ticker_read();
wakeup_tick = timestamp;
TIMER_Stop((TIMER_T *) NU_MODBASE(timer3_modinit.modname));
cd_major_minor_clks = (uint64_t) delta * US_PER_TICK * TMR3_CLK_PER_SEC / US_PER_SEC;
lp_ticker_arm_cd();
}
void lp_ticker_fire_interrupt(void)
{
cd_major_minor_clks = cd_minor_clks = 0;
/**
* FIXME: Scheduled alarm may go off incorrectly due to wrap around.
* Conditions in which delta is negative:
* 1. Wrap around
* 2. Newly scheduled alarm is behind now
*/
//int delta = (timestamp > now) ? (timestamp - now) : (uint32_t) ((uint64_t) timestamp + 0xFFFFFFFFu - now);
int delta = (int) (timestamp - now);
if (delta > 0) {
cd_major_minor_clks = (uint64_t) delta * US_PER_TICK * TMR3_CLK_PER_SEC / US_PER_SEC;
lp_ticker_arm_cd();
}
else {
cd_major_minor_clks = cd_minor_clks = 0;
/**
* This event was in the past. Set the interrupt as pending, but don't process it here.
* This prevents a recurive loop under heavy load which can lead to a stack overflow.
*/
NVIC_SetPendingIRQ(timer3_modinit.irq_n);
}
* This event was in the past. Set the interrupt as pending, but don't process it here.
* This prevents a recurive loop under heavy load which can lead to a stack overflow.
*/
NVIC_SetPendingIRQ(timer3_modinit.irq_n);
}
void lp_ticker_disable_interrupt(void)

View File

@ -149,19 +149,15 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
{
TIMER_Stop((TIMER_T *) NU_MODBASE(timer1hires_modinit.modname));
int delta = (int) (timestamp - us_ticker_read());
if (delta > 0) {
cd_major_minor_us = delta * US_PER_TICK;
us_ticker_arm_cd();
}
else {
cd_major_minor_us = cd_minor_us = 0;
/**
* This event was in the past. Set the interrupt as pending, but don't process it here.
* This prevents a recurive loop under heavy load which can lead to a stack overflow.
*/
NVIC_SetPendingIRQ(timer1hires_modinit.irq_n);
}
uint32_t delta = timestamp - us_ticker_read();
cd_major_minor_us = delta * US_PER_TICK;
us_ticker_arm_cd();
}
void us_ticker_fire_interrupt(void)
{
cd_major_minor_us = cd_minor_us = 0;
NVIC_SetPendingIRQ(timer1hires_modinit.irq_n);
}
static void tmr0_vec(void)

View File

@ -53,6 +53,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
US_TICKER_TIMER->MCR |= 1;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
US_TICKER_TIMER->MCR &= ~1;
}

View File

@ -53,6 +53,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
US_TICKER_TIMER->MCR |= 1;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
US_TICKER_TIMER->MCR &= ~1;
}

View File

@ -53,6 +53,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
US_TICKER_TIMER->MCR |= 1;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
US_TICKER_TIMER->MCR &= ~1;
}

View File

@ -53,6 +53,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
US_TICKER_TIMER->MCR |= 1;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
US_TICKER_TIMER->MCR &= ~1;
}

View File

@ -72,6 +72,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
LPC_SCT3->EVEN = (1 << 0);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
// Disable interrupt on SCT3 event 0
LPC_SCT3->EVEN = 0;

View File

@ -55,6 +55,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
US_TICKER_TIMER->MCR |= 1;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
US_TICKER_TIMER->MCR &= ~1;
}

View File

@ -55,6 +55,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
US_TICKER_TIMER->MCR |= 1;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
US_TICKER_TIMER->MCR &= ~1;
}

View File

@ -55,6 +55,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
US_TICKER_TIMER->MCR |= 1;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
US_TICKER_TIMER->MCR &= ~1;
}

View File

@ -110,6 +110,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
LPC_MRT->CTRL1 |= 1;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
//Disable Timestamped interrupts triggered by TIMER1
void us_ticker_disable_interrupt() {
//Timer1 for Timestamped interrupts (31 bits downcounter @ SystemCoreClock)

View File

@ -86,6 +86,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
LPC_MRT->CTRL1 |= 1;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
//Disable Timestamped interrupts triggered by TIMER1
void us_ticker_disable_interrupt() {
//Timer1 for Timestamped interrupts (31 bits downcounter @ SystemCoreClock)

View File

@ -58,6 +58,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
fRtcSetInterrupt(timestamp);
}
void lp_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(Rtc_IRQn);
}
/** Disable low power ticker interrupt
*
*/

View File

@ -128,6 +128,11 @@ uint32_t us_ticker_read()
return retval;
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(Tim0_IRQn);
}
/*******************************************************************************
* Event Timer
*

View File

@ -125,17 +125,6 @@ void fRtcSetInterrupt(uint32_t timestamp)
{
uint64_t current_time = fRtcRead();
/* compute delta between current time and timestamp.
* Note: the current time used to compute the delta is relative (truncated
* to 32 bits).
*/
int32_t delta = timestamp - (uint32_t) current_time;
if (delta <= 0) {
// event considered in the past, set the interrupt as pending.
NVIC_SetPendingIRQ(Rtc_IRQn);
return;
}
uint64_t full_timestamp = (current_time & ~UINT32_MAX) | timestamp;
if ( (uint32_t)current_time > timestamp) {
full_timestamp += ((uint64_t) UINT32_MAX) + 1;

View File

@ -144,6 +144,10 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
GIC_EnableIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_fire_interrupt(void) {
GIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
GIC_DisableIRQ(US_TICKER_TIMER_IRQn);
}

View File

@ -130,6 +130,10 @@ void us_ticker_set_interrupt(timestamp_t timestamp) {
GIC_EnableIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_fire_interrupt(void) {
GIC_SetPendingIRQ(US_TICKER_TIMER_IRQn);
}
void us_ticker_disable_interrupt(void) {
GIC_DisableIRQ(US_TICKER_TIMER_IRQn);
}

View File

@ -97,6 +97,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(TIMER2_7_IRQ);
}
void us_ticker_disable_interrupt(void)
{
HalTimerOp.HalTimerDis((u32)TimerAdapter.TimerId);

View File

@ -70,6 +70,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
rtc_set_wake_up_timer(delta);
}
void lp_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(RTC_WKUP_IRQn);
}
void lp_ticker_disable_interrupt(void)
{
rtc_deactivate_wake_up_timer();

View File

@ -81,109 +81,105 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
// Enable IT
__HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
int current_time = us_ticker_read();
int delta = (int)(timestamp - current_time);
if (delta <= 0) { // This event was in the past
/* Immediately set the compare event to cause the event to be handled in
* the next interrupt context. This prevents calling interrupt handlers
* recursively as us_ticker_set_interrupt might be called again from the
* application handler
/* Set the number of timer wrap-around loops before the actual timestamp
* is reached. If the calculated delta time is more than halfway to the
* next compare event, check to see if a compare event has already been
* set, and if so, add one to the wrap-around count. This is done to
* ensure the correct wrap count is used in the corner cases where the
* 16 bit counter passes the compare value during the process of
* configuring this interrupt.
*
* Assumption: The time to execute this function is less than 32ms
* (otherwise incorrect behaviour could result)
*
* Consider the following corner cases:
* 1) timestamp is 1 us in the future:
* oc_int_part = 0 initially
* oc_int_part left at 0 because ((delta - 1) & 0xFFFF) < 0x8000
* Compare event should happen in 1 us and us_ticker_irq_handler()
* called
* 2) timestamp is 0x8000 us in the future:
* oc_int_part = 0 initially
* oc_int_part left at 0 because ((delta - 1) & 0xFFFF) < 0x8000
* There should be no possibility of the CC1 flag being set yet
* (see assumption above). When the compare event does occur in
* 32768 us, us_ticker_irq_handler() will be called
* 3) timestamp is 0x8001 us in the future:
* oc_int_part = 0 initially
* ((delta - 1) & 0xFFFF) >= 0x8000 but there should be no
* possibility of the CC1 flag being set yet (see assumption above),
* so oc_int_part will be left at 0, and when the compare event
* does occur in 32769 us, us_ticker_irq_handler() will be called
* 4) timestamp is 0x10000 us in the future:
* oc_int_part = 0 initially
* ((delta - 1) & 0xFFFF) >= 0x8000
* There are two subcases:
* a) The timer counter has not incremented past the compare
* value while setting up the interrupt. In this case, the
* CC1 flag will not be set, so oc_int_part will be
* left at 0, and when the compare event occurs in 65536 us,
* us_ticker_irq_handler() will be called
* b) The timer counter has JUST incremented past the compare
* value. In this case, the CC1 flag will be set, so
* oc_int_part will be incremented to 1, and the interrupt will
* occur immediately after this function returns, where
* oc_int_part will decrement to 0 without calling
* us_ticker_irq_handler(). Then about 65536 us later, the
* compare event will occur again, and us_ticker_irq_handler()
* will be called
* 5) timestamp is 0x10001 us in the future:
* oc_int_part = 1 initially
* oc_int_part left at 1 because ((delta - 1) & 0xFFFF) < 0x8000
* CC1 flag will not be set (see assumption above). In 1 us the
* compare event will cause an interrupt, where oc_int_part will be
* decremented to 0 without calling us_ticker_irq_handler(). Then
* about 65536 us later, the compare event will occur again, and
* us_ticker_irq_handler() will be called
* 6) timestamp is 0x18000 us in the future:
* oc_int_part = 1 initially
* oc_int_part left at 1 because ((delta - 1) & 0xFFFF) < 0x8000
* There should be no possibility of the CC1 flag being set yet
* (see assumption above). When the compare event does occur in
* 32768 us, oc_int_part will be decremented to 0 without calling
* us_ticker_irq_handler(). Then about 65536 us later, the
* compare event will occur again, and us_ticker_irq_handler() will
* be called
* 7) timestamp is 0x18001 us in the future:
* oc_int_part = 1 initially
* ((delta - 1) & 0xFFFF) >= 0x8000 but there should be no
* possibility of the CC1 flag being set yet (see assumption above),
* so oc_int_part will be left at 1, and when the compare event
* does occur in 32769 us, oc_int_part will be decremented to 0
* without calling us_ticker_irq_handler(). Then about 65536 us
* later, the compare event will occur again, and
* us_ticker_irq_handler() will be called
*
* delta - 1 is used because the timer compare event happens on the
* counter incrementing to match the compare value, and it won't occur
* immediately when the compare value is set to the current counter
* value.
*/
uint32_t current_time = us_ticker_read();
uint32_t delta = timestamp - current_time;
oc_int_part = (delta - 1) >> 16;
if ( ((delta - 1) & 0xFFFF) >= 0x8000 &&
__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_CC1) == SET ) {
++oc_int_part;
/* NOTE: Instead of incrementing oc_int_part here, we could clear
* the CC1 flag, but then you'd have to wait to ensure the
* interrupt is knocked down before returning and reenabling
* interrupts. Since this is a rare case, it's not worth it
* to try and optimize it, and it keeps the code simpler and
* safer to just do this increment instead.
*/
oc_int_part = 0;
HAL_TIM_GenerateEvent(&TimMasterHandle, TIM_EVENTSOURCE_CC1);
} else {
/* Set the number of timer wrap-around loops before the actual timestamp
* is reached. If the calculated delta time is more than halfway to the
* next compare event, check to see if a compare event has already been
* set, and if so, add one to the wrap-around count. This is done to
* ensure the correct wrap count is used in the corner cases where the
* 16 bit counter passes the compare value during the process of
* configuring this interrupt.
*
* Assumption: The time to execute this function is less than 32ms
* (otherwise incorrect behaviour could result)
*
* Consider the following corner cases:
* 1) timestamp is 1 us in the future:
* oc_int_part = 0 initially
* oc_int_part left at 0 because ((delta - 1) & 0xFFFF) < 0x8000
* Compare event should happen in 1 us and us_ticker_irq_handler()
* called
* 2) timestamp is 0x8000 us in the future:
* oc_int_part = 0 initially
* oc_int_part left at 0 because ((delta - 1) & 0xFFFF) < 0x8000
* There should be no possibility of the CC1 flag being set yet
* (see assumption above). When the compare event does occur in
* 32768 us, us_ticker_irq_handler() will be called
* 3) timestamp is 0x8001 us in the future:
* oc_int_part = 0 initially
* ((delta - 1) & 0xFFFF) >= 0x8000 but there should be no
* possibility of the CC1 flag being set yet (see assumption above),
* so oc_int_part will be left at 0, and when the compare event
* does occur in 32769 us, us_ticker_irq_handler() will be called
* 4) timestamp is 0x10000 us in the future:
* oc_int_part = 0 initially
* ((delta - 1) & 0xFFFF) >= 0x8000
* There are two subcases:
* a) The timer counter has not incremented past the compare
* value while setting up the interrupt. In this case, the
* CC1 flag will not be set, so oc_int_part will be
* left at 0, and when the compare event occurs in 65536 us,
* us_ticker_irq_handler() will be called
* b) The timer counter has JUST incremented past the compare
* value. In this case, the CC1 flag will be set, so
* oc_int_part will be incremented to 1, and the interrupt will
* occur immediately after this function returns, where
* oc_int_part will decrement to 0 without calling
* us_ticker_irq_handler(). Then about 65536 us later, the
* compare event will occur again, and us_ticker_irq_handler()
* will be called
* 5) timestamp is 0x10001 us in the future:
* oc_int_part = 1 initially
* oc_int_part left at 1 because ((delta - 1) & 0xFFFF) < 0x8000
* CC1 flag will not be set (see assumption above). In 1 us the
* compare event will cause an interrupt, where oc_int_part will be
* decremented to 0 without calling us_ticker_irq_handler(). Then
* about 65536 us later, the compare event will occur again, and
* us_ticker_irq_handler() will be called
* 6) timestamp is 0x18000 us in the future:
* oc_int_part = 1 initially
* oc_int_part left at 1 because ((delta - 1) & 0xFFFF) < 0x8000
* There should be no possibility of the CC1 flag being set yet
* (see assumption above). When the compare event does occur in
* 32768 us, oc_int_part will be decremented to 0 without calling
* us_ticker_irq_handler(). Then about 65536 us later, the
* compare event will occur again, and us_ticker_irq_handler() will
* be called
* 7) timestamp is 0x18001 us in the future:
* oc_int_part = 1 initially
* ((delta - 1) & 0xFFFF) >= 0x8000 but there should be no
* possibility of the CC1 flag being set yet (see assumption above),
* so oc_int_part will be left at 1, and when the compare event
* does occur in 32769 us, oc_int_part will be decremented to 0
* without calling us_ticker_irq_handler(). Then about 65536 us
* later, the compare event will occur again, and
* us_ticker_irq_handler() will be called
*
* delta - 1 is used because the timer compare event happens on the
* counter incrementing to match the compare value, and it won't occur
* immediately when the compare value is set to the current counter
* value.
*/
oc_int_part = ((uint32_t)delta - 1) >> 16;
if ( ((delta - 1) & 0xFFFF) >= 0x8000 &&
__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_CC1) == SET ) {
++oc_int_part;
/* NOTE: Instead of incrementing oc_int_part here, we could clear
* the CC1 flag, but then you'd have to wait to ensure the
* interrupt is knocked down before returning and reenabling
* interrupts. Since this is a rare case, it's not worth it
* to try and optimize it, and it keeps the code simpler and
* safer to just do this increment instead.
*/
}
}
}
void us_ticker_fire_interrupt(void)
{
TimMasterHandle.Instance = TIM_MST;
HAL_TIM_GenerateEvent(&TimMasterHandle, TIM_EVENTSOURCE_CC1);
}
void us_ticker_disable_interrupt(void)

View File

@ -48,14 +48,15 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
__HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
// Set new output compare value
__HAL_TIM_SET_COMPARE(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);
// Check if timestamp has already passed, and if so, set the event immediately
if ((int32_t)(timestamp - TIM_MST->CNT) <= 0) {
LL_TIM_GenerateEvent_CC1(TimMasterHandle.Instance);
}
// Enable IT
__HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
}
void us_ticker_fire_interrupt(void)
{
LL_TIM_GenerateEvent_CC1(TimMasterHandle.Instance);
}
void us_ticker_disable_interrupt(void)
{
TimMasterHandle.Instance = TIM_MST;

View File

@ -92,6 +92,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
RTC_FreezeEnable(false);
}
void lp_ticker_fire_interrupt(void)
{
RTC_IntSet(RTC_IFS_COMP0);
}
inline void lp_ticker_disable_interrupt()
{
RTC_IntDisable(RTC_IF_COMP0);
@ -160,6 +165,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
RTCC_IntEnable(RTCC_IF_CC0);
}
void lp_ticker_fire_interrupt(void)
{
RTCC_IntSet(RTCC_IFS_CC0);
}
inline void lp_ticker_disable_interrupt()
{
RTCC_IntDisable(RTCC_IF_CC0);

View File

@ -211,6 +211,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
TIMER_IntEnable(US_TICKER_TIMER, TIMER_IEN_CC0);
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQ);
}
void us_ticker_disable_interrupt(void)
{
if((US_TICKER_TIMER->IEN & TIMER_IEN_CC0) != 0) {

View File

@ -96,12 +96,6 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
dev = (int32_t)(timestamp - us_ticker_read());
dev = dev * ((GetSystemClock() / 1000000) / 16);
if(dev <= 0)
{
us_ticker_irq_handler();
return;
}
DUALTIMER_ClockEnable(TIMER_0);
DUALTIMER_Stop(TIMER_0);
@ -123,6 +117,11 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
}
void us_ticker_fire_interrupt(void)
{
NVIC_SetPendingIRQ(TIMER_IRQn);
}
void us_ticker_disable_interrupt(void)
{
NVIC_DisableIRQ(TIMER_IRQn);

View File

@ -323,6 +323,14 @@ void lp_ticker_set_interrupt(timestamp_t time)
core_util_critical_section_exit();
}
void lp_ticker_fire_interrupt(void)
{
// user interrupt only set, this will invoke from ISR routine directly lp handler
g_user_interrupt_pending = false;
g_user_interrupt_set = true;
NVIC_SetPendingIRQ(RTC_IRQn);
}
void lp_ticker_disable_interrupt(void)
{
/* Can't disable interrupts as we need them to manage

View File

@ -226,6 +226,12 @@ void us_ticker_set_interrupt(timestamp_t timestamp)
core_util_critical_section_exit();
}
void us_ticker_fire_interrupt(void)
{
g_user_interrupt = true;
NVIC_SetPendingIRQ(Timer_IRQn);
}
void us_ticker_disable_interrupt(void)
{
/* Can't actually disable the interrupt here