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authorRichard Barry <ribarry@amazon.com>2013-04-18 09:17:05 +0000
committerRichard Barry <ribarry@amazon.com>2013-04-18 09:17:05 +0000
commit64a3ab321a86787eeccfc888916fdc7221ee0e1d (patch)
treef2417bd122554ac951147fd33ff3656f7a9a02b9 /FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI/FreeRTOS_CLI.h
parent80f7e8cdd4916421a94ffaaae152268a34e7586c (diff)
downloadfreertos-git-64a3ab321a86787eeccfc888916fdc7221ee0e1d.tar.gz
Add FreeRTOS-Plus directory with new directory structure so it matches the FreeRTOS directory.
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+/*
+ * FreeRTOS+CLI V1.0.1 (C) 2012 Real Time Engineers ltd.
+ *
+ * FreeRTOS+CLI is an add-on component to FreeRTOS. It is not, in itself, part
+ * of the FreeRTOS kernel. FreeRTOS+CLI is licensed separately from FreeRTOS,
+ * and uses a different license to FreeRTOS. FreeRTOS+CLI uses a dual license
+ * model, information on which is provided below:
+ *
+ * - Open source licensing -
+ * FreeRTOS+CLI is a free download and may be used, modified and distributed
+ * without charge provided the user adheres to version two of the GNU General
+ * Public license (GPL) and does not remove the copyright notice or this text.
+ * The GPL V2 text is available on the gnu.org web site, and on the following
+ * URL: http://www.FreeRTOS.org/gpl-2.0.txt
+ *
+ * - Commercial licensing -
+ * Businesses and individuals who wish to incorporate FreeRTOS+CLI into
+ * proprietary software for redistribution in any form must first obtain a
+ * (very) low cost commercial license - and in-so-doing support the maintenance,
+ * support and further development of the FreeRTOS+CLI product. Commercial
+ * licenses can be obtained from http://shop.freertos.org and do not require any
+ * source files to be changed.
+ *
+ * FreeRTOS+CLI is distributed in the hope that it will be useful. You cannot
+ * use FreeRTOS+CLI unless you agree that you use the software 'as is'.
+ * FreeRTOS+CLI is provided WITHOUT ANY WARRANTY; without even the implied
+ * warranties of NON-INFRINGEMENT, MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. Real Time Engineers Ltd. disclaims all conditions and terms, be they
+ * implied, expressed, or statutory.
+ *
+ * 1 tab == 4 spaces!
+ *
+ * http://www.FreeRTOS.org
+ * http://www.FreeRTOS.org/FreeRTOS-Plus
+ *
+ */
+
+#ifndef COMMAND_INTERPRETER_H
+#define COMMAND_INTERPRETER_H
+
+/* 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 portBASE_TYPE (*pdCOMMAND_LINE_CALLBACK)( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t * 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 int8_t * const pcCommand; /* The command that causes pxCommandInterpreter to be executed. For example "help". Must be all lower case. */
+ const int8_t * 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.
+ */
+portBASE_TYPE 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.
+ */
+portBASE_TYPE FreeRTOS_CLIProcessCommand( const int8_t * const pcCommandInput, int8_t * 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.
+ */
+int8_t *FreeRTOS_CLIGetOutputBuffer( void );
+
+/*
+ * Return a pointer to the xParameterNumber'th word in pcCommandString.
+ */
+const int8_t *FreeRTOS_CLIGetParameter( const int8_t *pcCommandString, unsigned portBASE_TYPE uxWantedParameter, portBASE_TYPE *pxParameterStringLength );
+
+#endif /* COMMAND_INTERPRETER_H */
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