[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI/FreeRTOS_CLI.h

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+/*
+ * FreeRTOS+CLI V1.0.4
+ * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://aws.amazon.com/freertos
+ *
+ */
+
+#ifndef COMMAND_INTERPRETER_H
+#define COMMAND_INTERPRETER_H
+
+/* *INDENT-OFF* */
+#ifdef __cplusplus
+    extern "C" {
+#endif
+/* *INDENT-ON* */
+
+/* The prototype to which callback functions used to process command line
+commands must comply.  pcWriteBuffer is a buffer into which the output from
+executing the command can be written, xWriteBufferLen is the length, in bytes of
+the pcWriteBuffer buffer, and pcCommandString is the entire string as input by
+the user (from which parameters can be extracted).*/
+typedef BaseType_t (*pdCOMMAND_LINE_CALLBACK)( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString );
+
+/* The structure that defines command line commands.  A command line command
+should be defined by declaring a const structure of this type. */
+typedef struct xCOMMAND_LINE_INPUT
+{
+	const char * const pcCommand;				/* The command that causes pxCommandInterpreter to be executed.  For example "help".  Must be all lower case. */
+	const char * const pcHelpString;			/* String that describes how to use the command.  Should start with the command itself, and end with "\r\n".  For example "help: Returns a list of all the commands\r\n". */
+	const pdCOMMAND_LINE_CALLBACK pxCommandInterpreter;	/* A pointer to the callback function that will return the output generated by the command. */
+	int8_t cExpectedNumberOfParameters;			/* Commands expect a fixed number of parameters, which may be zero. */
+} CLI_Command_Definition_t;
+
+/* For backward compatibility. */
+#define xCommandLineInput CLI_Command_Definition_t
+
+/*
+ * Register the command passed in using the pxCommandToRegister parameter.
+ * Registering a command adds the command to the list of commands that are
+ * handled by the command interpreter.  Once a command has been registered it
+ * can be executed from the command line.
+ */
+BaseType_t FreeRTOS_CLIRegisterCommand( const CLI_Command_Definition_t * const pxCommandToRegister );
+
+/*
+ * Runs the command interpreter for the command string "pcCommandInput".  Any
+ * output generated by running the command will be placed into pcWriteBuffer.
+ * xWriteBufferLen must indicate the size, in bytes, of the buffer pointed to
+ * by pcWriteBuffer.
+ *
+ * FreeRTOS_CLIProcessCommand should be called repeatedly until it returns pdFALSE.
+ *
+ * pcCmdIntProcessCommand is not reentrant.  It must not be called from more
+ * than one task - or at least - by more than one task at a time.
+ */
+BaseType_t FreeRTOS_CLIProcessCommand( const char * const pcCommandInput, char * pcWriteBuffer, size_t xWriteBufferLen  );
+
+/*-----------------------------------------------------------*/
+
+/*
+ * A buffer into which command outputs can be written is declared in the
+ * main command interpreter, rather than in the command console implementation,
+ * to allow application that provide access to the command console via multiple
+ * interfaces to share a buffer, and therefore save RAM.  Note, however, that
+ * the command interpreter itself is not re-entrant, so only one command
+ * console interface can be used at any one time.  For that reason, no attempt
+ * is made to provide any mutual exclusion mechanism on the output buffer.
+ *
+ * FreeRTOS_CLIGetOutputBuffer() returns the address of the output buffer.
+ */
+char *FreeRTOS_CLIGetOutputBuffer( void );
+
+/*
+ * Return a pointer to the xParameterNumber'th word in pcCommandString.
+ */
+const char *FreeRTOS_CLIGetParameter( const char *pcCommandString, UBaseType_t uxWantedParameter, BaseType_t *pxParameterStringLength );
+
+/* *INDENT-OFF* */
+#ifdef __cplusplus
+    }
+#endif
+/* *INDENT-ON* */
+
+#endif /* COMMAND_INTERPRETER_H */
+
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