drivers:platform:freeRTOS:Added mem functions

Add freeRTOS memory functions for no-OS implementation.

Signed-off-by: Lars Andre Landås <[email protected]>

drivers/platform/freeRTOS/freertos_alloc.c

@@ -0,0 +1,76 @@
+/*******************************************************************************
+ *   @file   freeRTOS/freertos_alloc.c
+ *   @brief  Implementation of freertos allocation functions.
+ *   @author Lars Andre Landås ([email protected])
+********************************************************************************
+ * Copyright 2025(c) Analog Devices, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of Analog Devices, Inc. nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************/
+
+#include "FreeRTOS.h"
+#include "task.h"
+#include "no_os_alloc.h"
+#include "portable.h"
+#include <string.h>
+
+/**
+ * @brief Allocate memory and return a pointer to it.
+ * @param size - Size of the memory block, in bytes.
+ * @return Pointer to the allocated memory, or NULL if the request fails.
+ */
+__attribute__((weak)) void *no_os_malloc(size_t size)
+{
+	return pvPortMalloc(size);
+}
+
+/**
+ * @brief Allocate memory and return a pointer to it, set memory to 0.
+ * @param nitems - Number of elements to be allocated.
+ * @param size - Size of elements.
+ * @return Pointer to the allocated memory, or NULL if the request fails.
+ */
+__attribute__((weak)) void *no_os_calloc(size_t nitems, size_t size)
+{
+    void *p_ret;
+    p_ret = pvPortMalloc(nitems * size);
+    if (p_ret != NULL) {
+        memset(p_ret, 0, nitems * size);
+    }
+    return p_ret;
+}
+
+/**
+ * @brief Deallocate memory previously allocated by a call to no_os_calloc
+ * 		  or no_os_malloc.
+ * @param ptr - Pointer to a memory block previously allocated by a call
+ * 		  to no_os_calloc or no_os_malloc.
+ * @return None.
+ */
+__attribute__((weak)) void no_os_free(void *ptr)
+{
+	vPortFree(ptr);
+}