/**
* @brief Pause Audio stream
* @param None.
* @retval Audio state.
*/
AUDIO_RECORDER_ErrorTypdef AUDIO_RECORDER_PauseResume(void)
{
if(haudio.in.state == AUDIO_RECORDER_PLAYING)
{
osThreadSuspend(AudioThreadId);
BSP_AUDIO_OUT_Pause();
haudio.in.state = AUDIO_RECORDER_PLAY_PAUSE;
}
else if(haudio.in.state == AUDIO_RECORDER_RECORDING)
{
osThreadSuspend(AudioThreadId);
BSP_AUDIO_IN_Pause();
haudio.in.state = AUDIO_RECORDER_RECORD_PAUSE;
}
else if(haudio.in.state == AUDIO_RECORDER_PLAY_PAUSE)
{
osThreadResume(AudioThreadId);
BSP_AUDIO_OUT_Resume();
haudio.in.state = AUDIO_RECORDER_PLAYING;
}
else if(haudio.in.state == AUDIO_RECORDER_RECORD_PAUSE)
{
osThreadResume(AudioThreadId);
BSP_AUDIO_IN_Resume();
haudio.in.state = AUDIO_RECORDER_RECORDING;
}
return AUDIO_RECORDER_ERROR_NONE;
}
/**
* @brief Toggle LED2 thread
* @param argument not used
* @retval None
*/
static void LED_Thread2(void const *argument)
{
uint32_t count;
(void) argument;
for(;;)
{
count = osKernelSysTick() + 10000;
/* Toggle LED2 every 500 ms for 10 s */
while (count >= osKernelSysTick())
{
BSP_LED_Toggle(LED2);
osDelay(500);
}
/* Turn off LED2 */
BSP_LED_Off(LED2);
/* Resume Thread 1 */
osThreadResume(LEDThread1Handle);
/* Suspend Thread 2 */
osThreadSuspend(NULL);
}
}
/**
* @brief Semaphore Thread 1 function
* @param argument: shared semaphore
* @retval None
*/
static void SemaphoreThread1 (void const *argument)
{
uint32_t count = 0;
osSemaphoreId semaphore = (osSemaphoreId) argument;
for(;;)
{
if (semaphore != NULL)
{
/* Try to obtain the semaphore. */
if(osSemaphoreWait(semaphore , 100) == osOK)
{
count = osKernelSysTick() + 5000;
while (count >= osKernelSysTick())
{
/* Toggle LED1 */
BSP_LED_Toggle(LED1);
/* Delay 200 ms */
osDelay(200);
}
/* Turn off LED1 */
BSP_LED_Off(LED1);
/* Release the semaphore */
osSemaphoreRelease(semaphore);
/* Suspend ourseleves to execute thread 2 (lower priority) */
osThreadSuspend(NULL);
}
}
}
}
/**
* @brief Stop audio stream.
* @param None.
* @retval Audio state.
*/
AUDIO_RECORDER_ErrorTypdef AUDIO_RECORDER_StopRec(void)
{
uint32_t byteswritten = 0;
AUDIO_RECORDER_ErrorTypdef audio_error = AUDIO_RECORDER_ERROR_IO;
BSP_AUDIO_IN_Stop();
haudio.in.state = AUDIO_RECORDER_IDLE;
if(f_lseek(&wav_file, 0) == FR_OK)
{
/* Update the wav file header save it into wav file */
WavProcess_HeaderUpdate(pHeaderBuff, &AudioInfo);
if(f_write(&wav_file, pHeaderBuff, sizeof(WAV_InfoTypedef), (void*)&byteswritten) == FR_OK)
{
audio_error = AUDIO_RECORDER_ERROR_NONE;
}
}
haudio.in.state = AUDIO_RECORDER_SUSPENDED;
f_close(&wav_file);
_cbNotifyStateChange();
if(AudioThreadId != 0)
{
osThreadSuspend(AudioThreadId);
}
return audio_error;
}
/**
* @brief Toggle LED3 thread
* @param argument not used
* @retval None
*/
static void LED_Thread2(void const *argument)
{
uint32_t count;
(void) argument;
for (;;)
{
count = osKernelSysTick() + 10000;
while (count >= osKernelSysTick())
{
BSP_LED_On(LED3);
osDelay(100);
BSP_LED_Off(LED3);
osDelay(100);
BSP_LED_On(LED3);
osDelay(100);
BSP_LED_Off(LED3);
HAL_Delay(1000);
}
/* Turn off LED3 */
BSP_LED_Off(LED3);
/* Resume Thread 1 */
osThreadResume(LEDThread1Handle);
/* Suspend Thread 2 */
osThreadSuspend(NULL);
}
}
/**
* @brief Pause Audio stream
* @param None.
* @retval Audio state.
*/
AUDIOPLAYER_ErrorTypdef AUDIOPLAYER_Pause(void)
{
if(AudioThreadId != 0)
{
osThreadSuspend(AudioThreadId);
}
BSP_AUDIO_OUT_Pause();
return AUDIOPLAYER_ERROR_NONE;
}
/**
* @brief Mutex Medium Priority Thread.
* @param argument: Not used
* @retval None
*/
static void MutexMeduimPriorityThread(void const *argument)
{
/* Just to remove compiler warning */
(void) argument;
for(;;)
{
/* This thread will run while the high-priority thread is blocked, and the
high-priority thread will block only once it has the mutex - therefore
this call should block until the high-priority thread has given up the
mutex, and not actually execute past this call until the high-priority
thread is suspended. */
if(osMutexWait(osMutex, osWaitForever) == osOK)
{
if(osThreadGetState(osHighPriorityThreadHandle) != osThreadSuspended)
{
/* Did not expect to execute until the high priority thread was
suspended.
Toggle LED 3 to indicate error */
BSP_LED_Toggle(LED3);
}
else
{
/* Give the mutex back before suspending ourselves to allow
the low priority thread to obtain the mutex. */
if(osMutexRelease(osMutex) != osOK)
{
/* Toggle LED 3 to indicate error */
BSP_LED_Toggle(LED3);
}
osThreadSuspend(NULL);
}
}
else
{
/* We should not leave the osMutexWait() function
until the mutex was obtained.
Toggle LED 3 to indicate error */
BSP_LED_Toggle(LED3);
}
/* The High and Medium priority threads should be in lock step. */
if(HighPriorityThreadCycles != (MediumPriorityThreadCycles + 1))
{
/* Toggle LED 3 to indicate error */
BSP_LED_Toggle(LED3);
}
/* Keep count of the number of cycles this task has performed so a
stall can be detected. */
MediumPriorityThreadCycles++;
BSP_LED_Toggle(LED2);
}
}
/**
* @brief Stop audio stream.
* @param None.
* @retval Audio state.
*/
AUDIOPLAYER_ErrorTypdef AUDIOPLAYER_Stop(void)
{
AUDIOPLAYER_Mute(1);
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
f_close(&wav_file);
osThreadSuspend(AudioThreadId);
haudio.state = AUDIOPLAYER_STOP;
return AUDIOPLAYER_ERROR_NONE;
}
/**
* @brief Stop audio stream.
* @param None.
* @retval Audio state.
*/
AUDIOPLAYER_ErrorTypdef AUDIOPLAYER_Stop(void)
{
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
haudio.out.state = AUDIOPLAYER_STOP;
f_close(&wav_file);
if(AudioThreadId != 0)
{
osThreadSuspend(AudioThreadId);
}
return AUDIOPLAYER_ERROR_NONE;
}
/**
* @brief Stop audio stream.
* @param None.
* @retval Audio state.
*/
AUDIO_RECORDER_ErrorTypdef AUDIO_RECORDER_StopPlayer(void)
{
BSP_AUDIO_OUT_Stop(CODEC_PDWN_HW);
BSP_AUDIO_OUT_DeInit();
haudio.in.state = AUDIO_RECORDER_SUSPENDED;
f_close(&wav_file);
_cbNotifyStateChange();
if(AudioThreadId != 0)
{
osThreadSuspend(AudioThreadId);
}
return AUDIO_RECORDER_ERROR_NONE;
}
/**
* @brief Toggle LED1
* @param thread not used
* @retval None
*/
static void LED_Thread1(void const *argument)
{
(void) argument;
for (;;)
{
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_SET);
osDelay(2000);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_RESET);
osThreadSuspend(LEDThread2Handle);
osDelay(1900);
osThreadResume(LEDThread2Handle);
}
}
/**
* @brief Mutex High Priority Thread.
* @param argument: Not used
* @retval None
*/
static void MutexHighPriorityThread(void const *argument)
{
/* Just to remove compiler warning. */
(void) argument;
for (;;)
{
/* The first time through the mutex will be immediately available, on
subsequent times through the mutex will be held by the low priority thread
at this point and this Take will cause the low priority thread to inherit
the priority of this tadhr. In this case the block time must be
long enough to ensure the low priority thread will execute again before the
block time expires. If the block time does expire then the error
flag will be set here. */
if (osMutexWait(osMutex, mutexTWO_TICK_DELAY) != osOK)
{
/* Toggle LED3 to indicate error */
BSP_LED_Toggle(LED3);
}
/* Ensure the other thread attempting to access the mutex
are able to execute to ensure they either block (where a block
time is specified) or return an error (where no block time is
specified) as the mutex is held by this task. */
osDelay(mutexSHORT_DELAY);
/* We should now be able to release the mutex .
When the mutex is available again the medium priority thread
should be unblocked but not run because it has a lower priority
than this thread. The low priority thread should also not run
at this point as it too has a lower priority than this thread. */
if (osMutexRelease(osMutex) != osOK)
{
/* Toggle LED3 to indicate error */
BSP_LED_Toggle(LED3);
}
/* Keep count of the number of cycles this thread has performed. */
HighPriorityThreadCycles++;
BSP_LED_Toggle(LED1);
/* Suspend ourselves to the medium priority thread can execute. */
osThreadSuspend(NULL);
}
}
/**
* @brief Toggle LED3 and LED4 thread
* @param thread not used
* @retval None
*/
static void LED_Thread1(void const *argument)
{
uint32_t count = 0;
(void) argument;
for (;;)
{
count = osKernelSysTick() + 5000;
/* Toggle LED3 every 200 ms for 5 s */
while (count >= osKernelSysTick())
{
BSP_LED_Toggle(LED3);
osDelay(200);
}
/* Turn off LED3 */
BSP_LED_Off(LED3);
/* Suspend Thread 1 */
osThreadSuspend(NULL);
count = osKernelSysTick() + 5000;
/* Toggle LED3 every 400 ms for 5 s */
while (count >= osKernelSysTick())
{
BSP_LED_Toggle(LED3);
osDelay(400);
}
/* Resume Thread 2*/
osThreadResume(LEDThread2Handle);
}
}