feat(bluetooth/controller): adjust bt/porting code structure and delete redundant code

components/bt/porting/include/os/os_error.h

@@ -0,0 +1,69 @@
+/*
+ * SPDX-FileCopyrightText: 2015-2022 The Apache Software Foundation (ASF)
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * SPDX-FileContributor: 2019-2022 Espressif Systems (Shanghai) CO LTD
+ */
+/*
+ * 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 H_OS_ERROR_
+#define H_OS_ERROR_
+
+#include "os/os.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* OS error enumerations */
+enum os_error {
+    OS_OK = 0,
+    OS_ENOMEM = 1,
+    OS_EINVAL = 2,
+    OS_INVALID_PARM = 3,
+    OS_MEM_NOT_ALIGNED = 4,
+    OS_BAD_MUTEX = 5,
+    OS_TIMEOUT = 6,
+    OS_ERR_IN_ISR = 7,      /* Function cannot be called from ISR */
+    OS_ERR_PRIV = 8,        /* Privileged access error */
+    OS_NOT_STARTED = 9,     /* OS must be started to call this function, but isn't */
+    OS_ENOENT = 10,         /* No such thing */
+    OS_EBUSY = 11,          /* Resource busy */
+    OS_ERROR = 12,          /* Generic Error */
+};
+
+typedef enum os_error os_error_t;
+
+/**
+ * @brief Converts an OS error code (`OS_[...]`) to an equivalent system error
+ * code (`SYS_E[...]`).
+ *
+ * @param os_error              The OS error code to convert.
+ *
+ * @return                      The equivalent system error code.
+ */
+int os_error_to_sys(os_error_t os_error);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif