2 FreeRTOS V7.4.2 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
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5 http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 ***************************************************************************
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9 * FreeRTOS tutorial books are available in pdf and paperback. *
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10 * Complete, revised, and edited pdf reference manuals are also *
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13 * Purchasing FreeRTOS documentation will not only help you, by *
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14 * ensuring you get running as quickly as possible and with an *
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15 * in-depth knowledge of how to use FreeRTOS, it will also help *
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16 * the FreeRTOS project to continue with its mission of providing *
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17 * professional grade, cross platform, de facto standard solutions *
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18 * for microcontrollers - completely free of charge! *
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20 * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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22 * Thank you for using FreeRTOS, and thank you for your support! *
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24 ***************************************************************************
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27 This file is part of the FreeRTOS distribution.
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29 FreeRTOS is free software; you can redistribute it and/or modify it under
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30 the terms of the GNU General Public License (version 2) as published by the
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31 Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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33 >>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
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34 distribute a combined work that includes FreeRTOS without being obliged to
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35 provide the source code for proprietary components outside of the FreeRTOS
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38 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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39 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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40 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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41 details. You should have received a copy of the GNU General Public License
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42 and the FreeRTOS license exception along with FreeRTOS; if not it can be
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43 viewed here: http://www.freertos.org/a00114.html and also obtained by
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44 writing to Real Time Engineers Ltd., contact details for whom are available
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45 on the FreeRTOS WEB site.
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49 ***************************************************************************
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51 * Having a problem? Start by reading the FAQ "My application does *
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52 * not run, what could be wrong?" *
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54 * http://www.FreeRTOS.org/FAQHelp.html *
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56 ***************************************************************************
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59 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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60 license and Real Time Engineers Ltd. contact details.
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62 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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63 including FreeRTOS+Trace - an indispensable productivity tool, and our new
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64 fully thread aware and reentrant UDP/IP stack.
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66 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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67 Integrity Systems, who sell the code with commercial support,
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68 indemnification and middleware, under the OpenRTOS brand.
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70 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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71 engineered and independently SIL3 certified version for use in safety and
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72 mission critical applications that require provable dependability.
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75 /* FreeRTOS includes. */
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76 #include "FreeRTOS.h"
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79 /* FreeRTOS+CLI includes. */
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80 #include "FreeRTOS_CLI.h"
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82 /* FreeRTOS+Trace includes. */
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83 #include "trcUser.h"
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86 * Defines a command that returns a table showing the state of each task at the
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87 * time the command is called.
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89 static portBASE_TYPE prvTaskStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
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92 * Defines a command that returns a table showing how much time each task has
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93 * spent in the Running state.
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95 static portBASE_TYPE prvRunTimeStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
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98 * Defines a command that expects exactly three parameters. Each of the three
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99 * parameter are echoed back one at a time.
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101 static portBASE_TYPE prvThreeParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
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104 * Defines a command that can take a variable number of parameters. Each
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105 * parameter is echoes back one at a time.
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107 static portBASE_TYPE prvParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
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110 * Defines a command that starts/stops events being recorded for offline viewing
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111 * in FreeRTOS+Trace.
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113 static portBASE_TYPE prvStartStopTraceCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
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115 /* Structure that defines the "run-time-stats" command line command. */
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116 static const CLI_Command_Definition_t xRunTimeStats =
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118 ( const int8_t * const ) "run-time-stats", /* The command string to type. */
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119 ( const int8_t * const ) "\r\nrun-time-stats:\r\n Displays a table showing how much processing time each FreeRTOS task has used\r\n\r\n",
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120 prvRunTimeStatsCommand, /* The function to run. */
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121 0 /* No parameters are expected. */
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124 /* Structure that defines the "task-stats" command line command. */
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125 static const CLI_Command_Definition_t xTaskStats =
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127 ( const int8_t * const ) "task-stats", /* The command string to type. */
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128 ( const int8_t * const ) "\r\ntask-stats:\r\n Displays a table showing the state of each FreeRTOS task\r\n\r\n",
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129 prvTaskStatsCommand, /* The function to run. */
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130 0 /* No parameters are expected. */
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133 /* Structure that defines the "echo_3_parameters" command line command. This
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134 takes exactly three parameters that the command simply echos back one at a
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136 static const CLI_Command_Definition_t xThreeParameterEcho =
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138 ( const int8_t * const ) "echo_3_parameters",
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139 ( const int8_t * const ) "\r\necho_3_parameters <param1> <param2> <param3>:\r\n Expects three parameters, echos each in turn\r\n\r\n",
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140 prvThreeParameterEchoCommand, /* The function to run. */
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141 3 /* Three parameters are expected, which can take any value. */
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144 /* Structure that defines the "echo_parameters" command line command. This
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145 takes a variable number of parameters that the command simply echos back one at
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147 static const CLI_Command_Definition_t xParameterEcho =
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149 ( const int8_t * const ) "echo_parameters",
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150 ( const int8_t * const ) "\r\necho_parameters <...>:\r\n Take variable number of parameters, echos each in turn\r\n\r\n",
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151 prvParameterEchoCommand, /* The function to run. */
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152 -1 /* The user can enter any number of commands. */
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155 /* Structure that defines the "trace" command line command. This takes a single
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156 parameter, which can be either "start" or "stop". */
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157 static const CLI_Command_Definition_t xStartTrace =
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159 ( const int8_t * const ) "trace",
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160 ( const int8_t * const ) "\r\ntrace [start | stop]:\r\n Starts or stops a trace recording for viewing in FreeRTOS+Trace\r\n\r\n",
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161 prvStartStopTraceCommand, /* The function to run. */
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162 1 /* One parameter is expected. Valid values are "start" and "stop". */
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165 /*-----------------------------------------------------------*/
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167 void vRegisterCLICommands( void )
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169 /* Register all the command line commands defined immediately above. */
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170 FreeRTOS_CLIRegisterCommand( &xTaskStats );
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171 FreeRTOS_CLIRegisterCommand( &xRunTimeStats );
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172 FreeRTOS_CLIRegisterCommand( &xThreeParameterEcho );
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173 FreeRTOS_CLIRegisterCommand( &xParameterEcho );
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174 FreeRTOS_CLIRegisterCommand( &xStartTrace );
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176 /*-----------------------------------------------------------*/
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178 static portBASE_TYPE prvTaskStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
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180 const int8_t *const pcHeader = ( int8_t * ) "Task State Priority Stack #\r\n************************************************\r\n";
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182 /* Remove compile time warnings about unused parameters, and check the
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183 write buffer is not NULL. NOTE - for simplicity, this example assumes the
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184 write buffer length is adequate, so does not check for buffer overflows. */
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185 ( void ) pcCommandString;
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186 ( void ) xWriteBufferLen;
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187 configASSERT( pcWriteBuffer );
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189 /* Generate a table of task stats. */
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190 strcpy( ( char * ) pcWriteBuffer, ( char * ) pcHeader );
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191 vTaskList( pcWriteBuffer + strlen( ( char * ) pcHeader ) );
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193 /* There is no more data to return after this single string, so return
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197 /*-----------------------------------------------------------*/
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199 static portBASE_TYPE prvRunTimeStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
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201 const int8_t * const pcHeader = ( int8_t * ) "Task Abs Time % Time\r\n****************************************\r\n";
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203 /* Remove compile time warnings about unused parameters, and check the
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204 write buffer is not NULL. NOTE - for simplicity, this example assumes the
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205 write buffer length is adequate, so does not check for buffer overflows. */
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206 ( void ) pcCommandString;
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207 ( void ) xWriteBufferLen;
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208 configASSERT( pcWriteBuffer );
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210 /* Generate a table of task stats. */
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211 strcpy( ( char * ) pcWriteBuffer, ( char * ) pcHeader );
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212 vTaskGetRunTimeStats( pcWriteBuffer + strlen( ( char * ) pcHeader ) );
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214 /* There is no more data to return after this single string, so return
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218 /*-----------------------------------------------------------*/
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220 static portBASE_TYPE prvThreeParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
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222 int8_t *pcParameter;
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223 portBASE_TYPE lParameterStringLength, xReturn;
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224 static portBASE_TYPE lParameterNumber = 0;
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226 /* Remove compile time warnings about unused parameters, and check the
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227 write buffer is not NULL. NOTE - for simplicity, this example assumes the
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228 write buffer length is adequate, so does not check for buffer overflows. */
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229 ( void ) pcCommandString;
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230 ( void ) xWriteBufferLen;
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231 configASSERT( pcWriteBuffer );
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233 if( lParameterNumber == 0 )
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235 /* The first time the function is called after the command has been
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236 entered just a header string is returned. */
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237 sprintf( ( char * ) pcWriteBuffer, "The three parameters were:\r\n" );
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239 /* Next time the function is called the first parameter will be echoed
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241 lParameterNumber = 1L;
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243 /* There is more data to be returned as no parameters have been echoed
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249 /* Obtain the parameter string. */
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250 pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
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252 pcCommandString, /* The command string itself. */
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253 lParameterNumber, /* Return the next parameter. */
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254 &lParameterStringLength /* Store the parameter string length. */
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257 /* Sanity check something was returned. */
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258 configASSERT( pcParameter );
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260 /* Return the parameter string. */
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261 memset( pcWriteBuffer, 0x00, xWriteBufferLen );
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262 sprintf( ( char * ) pcWriteBuffer, "%d: ", lParameterNumber );
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263 strncat( ( char * ) pcWriteBuffer, ( const char * ) pcParameter, lParameterStringLength );
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264 strncat( ( char * ) pcWriteBuffer, "\r\n", strlen( "\r\n" ) );
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266 /* If this is the last of the three parameters then there are no more
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267 strings to return after this one. */
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268 if( lParameterNumber == 3L )
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270 /* If this is the last of the three parameters then there are no more
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271 strings to return after this one. */
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273 lParameterNumber = 0L;
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277 /* There are more parameters to return after this one. */
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279 lParameterNumber++;
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285 /*-----------------------------------------------------------*/
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287 static portBASE_TYPE prvParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
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289 int8_t *pcParameter;
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290 portBASE_TYPE lParameterStringLength, xReturn;
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291 static portBASE_TYPE lParameterNumber = 0;
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293 /* Remove compile time warnings about unused parameters, and check the
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294 write buffer is not NULL. NOTE - for simplicity, this example assumes the
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295 write buffer length is adequate, so does not check for buffer overflows. */
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296 ( void ) pcCommandString;
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297 ( void ) xWriteBufferLen;
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298 configASSERT( pcWriteBuffer );
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300 if( lParameterNumber == 0 )
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302 /* The first time the function is called after the command has been
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303 entered just a header string is returned. */
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304 sprintf( ( char * ) pcWriteBuffer, "The parameters were:\r\n" );
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306 /* Next time the function is called the first parameter will be echoed
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308 lParameterNumber = 1L;
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310 /* There is more data to be returned as no parameters have been echoed
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316 /* Obtain the parameter string. */
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317 pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
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319 pcCommandString, /* The command string itself. */
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320 lParameterNumber, /* Return the next parameter. */
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321 &lParameterStringLength /* Store the parameter string length. */
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324 if( pcParameter != NULL )
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326 /* Return the parameter string. */
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327 memset( pcWriteBuffer, 0x00, xWriteBufferLen );
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328 sprintf( ( char * ) pcWriteBuffer, "%d: ", lParameterNumber );
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329 strncat( ( char * ) pcWriteBuffer, ( const char * ) pcParameter, lParameterStringLength );
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330 strncat( ( char * ) pcWriteBuffer, "\r\n", strlen( "\r\n" ) );
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332 /* There might be more parameters to return after this one. */
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334 lParameterNumber++;
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338 /* No more parameters were found. Make sure the write buffer does
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339 not contain a valid string. */
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340 pcWriteBuffer[ 0 ] = 0x00;
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342 /* No more data to return. */
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345 /* Start over the next time this command is executed. */
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346 lParameterNumber = 0;
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352 /*-----------------------------------------------------------*/
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354 static portBASE_TYPE prvStartStopTraceCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
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356 int8_t *pcParameter;
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357 portBASE_TYPE lParameterStringLength;
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359 /* Remove compile time warnings about unused parameters, and check the
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360 write buffer is not NULL. NOTE - for simplicity, this example assumes the
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361 write buffer length is adequate, so does not check for buffer overflows. */
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362 ( void ) pcCommandString;
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363 ( void ) xWriteBufferLen;
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364 configASSERT( pcWriteBuffer );
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366 /* Obtain the parameter string. */
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367 pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
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369 pcCommandString, /* The command string itself. */
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370 1, /* Return the first parameter. */
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371 &lParameterStringLength /* Store the parameter string length. */
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374 /* Sanity check something was returned. */
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375 configASSERT( pcParameter );
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377 /* There are only two valid parameter values. */
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378 if( strncmp( ( const char * ) pcParameter, "start", strlen( "start" ) ) == 0 )
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380 /* Start or restart the trace. */
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385 sprintf( ( char * ) pcWriteBuffer, "Trace recording (re)started.\r\n" );
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387 else if( strncmp( ( const char * ) pcParameter, "stop", strlen( "stop" ) ) == 0 )
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389 /* End the trace, if one is running. */
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391 sprintf( ( char * ) pcWriteBuffer, "Stopping trace recording.\r\n" );
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395 sprintf( ( char * ) pcWriteBuffer, "Valid parameters are 'start' and 'stop'.\r\n" );
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398 /* There is no more data to return after this single string, so return
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402 /*-----------------------------------------------------------*/
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