uploading the available driver librarires

drivers/fsl_common.c

@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2015-2016, Freescale Semiconductor, Inc.
+ * Copyright 2016-2021 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "fsl_common.h"
+
+#define SDK_MEM_MAGIC_NUMBER 12345U
+
+typedef struct _mem_align_control_block
+{
+    uint16_t identifier; /*!< Identifier for the memory control block. */
+    uint16_t offset;     /*!< offset from aligned address to real address */
+} mem_align_cb_t;
+
+/* Component ID definition, used by tools. */
+#ifndef FSL_COMPONENT_ID
+#define FSL_COMPONENT_ID "platform.drivers.common"
+#endif
+
+void *SDK_Malloc(size_t size, size_t alignbytes)
+{
+    mem_align_cb_t *p_cb = NULL;
+    uint32_t alignedsize;
+
+    /* Check overflow. */
+    alignedsize = SDK_SIZEALIGN(size, alignbytes);
+    if (alignedsize < size)
+    {
+        return NULL;
+    }
+
+    if (alignedsize > SIZE_MAX - alignbytes - sizeof(mem_align_cb_t))
+    {
+        return NULL;
+    }
+
+    alignedsize += alignbytes + sizeof(mem_align_cb_t);
+
+    union
+    {
+        void *pointer_value;
+#if (defined(__DSC__) && defined(__CW__))
+        uint32_t unsigned_value;
+#else
+        uintptr_t unsigned_value;
+#endif
+    } p_align_addr, p_addr;
+
+    p_addr.pointer_value = malloc(alignedsize);
+
+    if (p_addr.pointer_value == NULL)
+    {
+        return NULL;
+    }
+
+    p_align_addr.unsigned_value = SDK_SIZEALIGN(p_addr.unsigned_value + sizeof(mem_align_cb_t), alignbytes);
+
+    p_cb             = (mem_align_cb_t *)(p_align_addr.unsigned_value - 4U);
+    p_cb->identifier = SDK_MEM_MAGIC_NUMBER;
+    p_cb->offset     = (uint16_t)(p_align_addr.unsigned_value - p_addr.unsigned_value);
+
+    return p_align_addr.pointer_value;
+}
+
+void SDK_Free(void *ptr)
+{
+    union
+    {
+        void *pointer_value;
+#if (defined(__DSC__) && defined(__CW__))
+        uint32_t unsigned_value;
+#else
+        uintptr_t unsigned_value;
+#endif
+    } p_free;
+    p_free.pointer_value = ptr;
+    mem_align_cb_t *p_cb = (mem_align_cb_t *)(p_free.unsigned_value - 4U);
+
+    if (p_cb->identifier != SDK_MEM_MAGIC_NUMBER)
+    {
+        return;
+    }
+
+    p_free.unsigned_value = p_free.unsigned_value - p_cb->offset;
+
+    free(p_free.pointer_value);
+}