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continued with task notifications

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This commit is contained in:
Robin Müller 2020-05-27 19:03:46 +02:00
parent 2d33274c23
commit 8a1e0dab03
3 changed files with 53 additions and 7 deletions
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48
osal/FreeRTOS/BinarySemaphore.cpp
View File

@ -2,7 +2,7 @@
#include <framework/osal/FreeRTOS/TaskManagement.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#if ( configUSE_OLD_SEMAPHORES == 1 )
#if ( configUSE_TASK_NOTIFICATIONS == 0 )
BinarySemaphore::BinarySemaphore() {
handle = xSemaphoreCreateBinary();
@ -174,9 +174,6 @@ ReturnValue_t BinarySemaphore::takeBinarySemaphoreTickTimeout(
}
ReturnValue_t BinarySemaphore::giveBinarySemaphore() {
if (handle == nullptr) {
return SEMAPHORE_NULLPOINTER;
}
BaseType_t returncode = xTaskNotifyGive(handle);
if (returncode == pdPASS) {
return HasReturnvaluesIF::RETURN_OK;
@ -185,4 +182,47 @@ ReturnValue_t BinarySemaphore::giveBinarySemaphore() {
}
}
TaskHandle_t BinarySemaphore::getTaskHandle() {
return handle;
}
uint8_t BinarySemaphore::getSemaphoreCounter() {
uint32_t notificationValue;
xTaskNotifyAndQuery(handle, 0, eNoAction, &notificationValue);
return notificationValue;
}
uint8_t BinarySemaphore::getSemaphoreCounterFromISR(TaskHandle_t taskHandle) {
uint32_t notificationValue;
BaseType_t higherPriorityTaskWoken;
xTaskNotifyAndQueryFromISR(taskHandle, 0, eNoAction, &notificationValue,
&higherPriorityTaskWoken);
if(higherPriorityTaskWoken) {
TaskManagement::requestContextSwitch(CallContext::isr);
}
return notificationValue;
}
ReturnValue_t BinarySemaphore::giveBinarySemaphore(TaskHandle_t taskHandle) {
BaseType_t returncode = xTaskNotifyGive(taskHandle);
if (returncode == pdPASS) {
return HasReturnvaluesIF::RETURN_OK;
} else {
return SEMAPHORE_NOT_OWNED;
}
}
// Be careful with the stack size here. This is called from an ISR!
ReturnValue_t BinarySemaphore::giveBinarySemaphoreFromISR(
TaskHandle_t taskHandle, BaseType_t * higherPriorityTaskWoken) {
vTaskNotifyGiveFromISR(taskHandle, higherPriorityTaskWoken);
if(*higherPriorityTaskWoken == pdPASS) {
// Request context switch because unblocking the semaphore
// caused a high priority task unblock.
TaskManagement::requestContextSwitch(CallContext::isr);
}
return HasReturnvaluesIF::RETURN_OK;
}
#endif

8
osal/FreeRTOS/BinarySemaphore.h
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@ -6,7 +6,7 @@
extern "C" {
#include <freertos/FreeRTOS.h>
#if ( configUSE_OLD_SEMAPHORES == 1 )
#if ( configUSE_TASK_NOTIFICATIONS == 0 )
#include <freertos/semphr.h>
#else
#include <freertos/task.h>
@ -28,7 +28,7 @@ extern "C" {
* @author R. Mueller
* @ingroup osal
*/
#if ( configUSE_OLD_SEMAPHORES == 1 )
#if ( configUSE_TASK_NOTIFICATIONS == 0 )
class BinarySemaphore: public SemaphoreIF,
public HasReturnvaluesIF {
@ -155,7 +155,7 @@ public:
ReturnValue_t giveBinarySemaphore();
/**
* Get Handle to the semaphore.
* Get handle to the task related to the semaphore.
* @return
*/
TaskHandle_t getTaskHandle();
@ -179,6 +179,8 @@ public:
static ReturnValue_t giveBinarySemaphoreFromISR(TaskHandle_t taskToNotify,
BaseType_t * higherPriorityTaskWoken);
static uint8_t getSemaphoreCounterFromISR(TaskHandle_t taskHandle);
protected:
TaskHandle_t handle;
};

4
osal/FreeRTOS/CountingSemaphore.cpp
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@ -1,6 +1,10 @@
#include <framework/osal/FreeRTOS/CountingSemaphore.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
extern "C" {
#include <freertos/semphr.h>
}
// Make sure #define configUSE_COUNTING_SEMAPHORES 1 is set in
// free FreeRTOSConfig.h file.
CountingSemaphore::CountingSemaphore(uint8_t count, uint8_t initCount):