add Cli Console support (#532)

* add Cli Console support

include/cli/Makefile.am

@@ -29,6 +29,7 @@
 include $(abs_top_nlbuild_autotools_dir)/automake/pre.am
 
 ot_cli_headers                          = \
+    cli-console.h                         \
     cli-uart.h                            \
     $(NULL)
 

include/cli/cli-console.h

@@ -0,0 +1,79 @@
+/*
+ *  Copyright (c) 2016, Nest Labs, Inc.
+ *  All rights reserved.
+ *
+ *  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 the copyright holder 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+ */
+
+/**
+ * @file
+ * @brief
+ *  This file defines the top-level functions for the OpenThread CLI server.
+ */
+
+#ifndef CLI_CONSOLE_H_
+#define CLI_CONSOLE_H_
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * This function pointer is called to notify about Console output.
+ *
+ * @param[in]  aBuf        A pointer to a buffer with an output.
+ * @param[in]  aBufLength  A length of the output data stored in the buffer.
+ * @param[out] aContext    A user context pointer.
+ *
+ * @returns                Number of bytes processed by the callback.
+ *
+ */
+typedef int (*otCliConsoleOutputCallback)(const char *aBuf,
+                                          uint16_t aBufLength, void *aContext);
+
+/**
+ * Initialize the CLI CONSOLE module.
+ *
+ * @param[in]  aCallback   A callback method called to process console output.
+ * @param[in]  aContext    A user context pointer.
+ *
+ */
+void otCliConsoleInit(otCliConsoleOutputCallback aCallback, void *aContext);
+
+/**
+ * This method is called to feed in a console input line.
+ *
+ * @param[in]  aBuf        A pointer to a buffer with an input.
+ * @param[in]  aBufLength  A length of the input data stored in the buffer.
+ *
+ */
+void otCliConsoleInputLine(char *aBuf, uint16_t aBufLength);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif