Voice Activity Detection example application added
Change-Id: I720d54e6c3c3db601b2fd7e90011dc9307296aef
Co-authored-by: Bence Balogh <bence.balogh@arm.com>
Signed-off-by: Mark Horvath <mark.horvath@arm.com>
diff --git a/examples/vad_an552/ns_side/print_log.c b/examples/vad_an552/ns_side/print_log.c
new file mode 100644
index 0000000..1a9b344
--- /dev/null
+++ b/examples/vad_an552/ns_side/print_log.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2018-2021 Arm Limited. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "FreeRTOS.h"
+#include "semphr.h"
+#include "print_log.h"
+
+SemaphoreHandle_t xUARTMutex;
+
+static SemaphoreHandle_t prvCreateUARTMutex( void )
+{
+SemaphoreHandle_t xMutexHandle;
+ xMutexHandle = xSemaphoreCreateMutex();
+ configASSERT( xMutexHandle );
+ return xMutexHandle;
+}
+
+void vUARTLockInit( void )
+{
+ xUARTMutex = prvCreateUARTMutex();
+}
+
+static BaseType_t xUARTLockAcquire()
+{
+ return xSemaphoreTake( xUARTMutex, portMAX_DELAY );
+}
+
+static BaseType_t xUARTLockRelease( void )
+{
+ return xSemaphoreGive( xUARTMutex );
+}
+
+void vLoggingPrintf(const char *format, ...)
+{
+ va_list args;
+ BaseType_t schedulerState = xTaskGetSchedulerState();
+ /* A UART lock is used here to ensure that there is
+ * at most one task accessing UART at a time.
+ */
+ if (schedulerState != taskSCHEDULER_NOT_STARTED) {
+ xUARTLockAcquire();
+ }
+ va_start( args, format );
+ vprintf( format, args );
+ va_end ( args );
+ printf("\r\n");
+ if (schedulerState != taskSCHEDULER_NOT_STARTED) {
+ xUARTLockRelease();
+ }
+}
+
+void vLoggingPrint(const char * message)
+{
+ BaseType_t schedulerState = xTaskGetSchedulerState();
+ /* A UART lock is used here to ensure that there is
+ * at most one task accessing UART at a time.
+ */
+ if (schedulerState != taskSCHEDULER_NOT_STARTED) {
+ xUARTLockAcquire();
+ }
+ puts(message);
+ printf("\r\n");
+ if (schedulerState != taskSCHEDULER_NOT_STARTED) {
+ xUARTLockRelease();
+ }
+}