esp_modem: Refactor the modem to a standalone managed component

esp_modem/private_include/esp_modem_internal.h

@@ -0,0 +1,48 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed 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.
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "esp_log.h"
+#include "esp_modem.h"
+
+/**
+* @brief Macro defined for error checking
+*
+*/
+#define ESP_MODEM_ERR_CHECK(a, str, goto_tag, ...)                                    \
+    do                                                                                \
+    {                                                                                 \
+        if (!(a))                                                                     \
+        {                                                                             \
+            ESP_LOGE(TAG, "%s(%d): " str, __FUNCTION__, __LINE__, ##__VA_ARGS__); \
+            goto goto_tag;                                                            \
+        }                                                                             \
+    } while (0)
+
+/**
+* @brief common modem delay function
+*
+*/
+static inline void esp_modem_wait_ms(size_t time)
+{
+    vTaskDelay(pdMS_TO_TICKS(time));
+}
+
+#ifdef __cplusplus
+}
+#endif