add memory wrapper and errno util

common/usb_mem.h

@@ -0,0 +1,74 @@
+/**
+ * @file usb_mem.h
+ * @brief
+ *
+ * Copyright (c) 2022 sakumisu
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+#ifndef _USB_MEM_H
+
+//#include <stdint.h>
+//#include <stdio.h>
+//#include <stdlib.h>
+//#include <malloc.h>
+
+#define DCACHE_LINE_SIZE 32
+#define DCACHE_LINEMASK (DCACHE_LINE_SIZE -1)
+
+#ifdef CONFIG_USB_DCACHE_ENABLE
+#define USB_NOCACHE_RAM_SECTION __attribute__((section(".nocache_ram")))
+#else
+#define USB_NOCACHE_RAM_SECTION
+#endif
+
+static inline void *usb_malloc(size_t size)
+{
+    return malloc(size);
+}
+
+static inline void usb_free(void *ptr)
+{
+    free(ptr);
+}
+
+#ifdef CONFIG_USB_DCACHE_ENABLE
+static inline void *usb_iomalloc(size_t size)
+{
+    size  = (size + DCACHE_LINEMASK) & ~DCACHE_LINEMASK;
+    uint32_t no_cache_addr = (uint32_t)(uintptr_t)memalign(DCACHE_LINE_SIZE, size) & ~(1 << 30);
+    return (void *)no_cache_addr;
+}
+
+static inline void usb_iofree(void *addr)
+{
+    uint32_t cache_addr = (uint32_t)(uintptr_t)addr | (1 << 30);
+    free((void *)cache_addr);
+}
+#else
+static inline void *usb_iomalloc(size_t size)
+{
+    return malloc(size);
+}
+
+static inline void usb_iofree(void *ptr)
+{
+    free(ptr);
+}
+#endif
+
+#endif