/*\r
- FreeRTOS.org V5.3.1 - Copyright (C) 2003-2009 Richard Barry.\r
+ FreeRTOS.org V5.4.0 - Copyright (C) 2003-2009 Richard Barry.\r
\r
This file is part of the FreeRTOS.org distribution.\r
\r
* In addition to the standard demo tasks, the following tasks and tests are\r
* defined and/or created within this file:\r
*\r
- * "LCD" task - the LCD task is a 'gatekeeper' task. It is the only task that\r
- * is permitted to access the display directly. Other tasks wishing to write a\r
- * message to the LCD send the message on a queue to the LCD task instead of\r
- * accessing the LCD themselves. The LCD task just blocks on the queue waiting\r
- * for messages - waking and displaying the messages as they arrive. The use\r
- * of a gatekeeper in this manner permits both tasks and interrupts to write to\r
- * the LCD without worrying about mutual exclusion. This is demonstrated by the\r
- * check hook (see below) which sends messages to the display even though it\r
- * executes from an interrupt context.\r
- *\r
* "Check" hook - This only executes fully every five seconds from the tick\r
* hook. Its main function is to check that all the standard demo tasks are\r
- * still operational. Should any unexpected behaviour be discovered within a\r
- * demo task then the tick hook will write an error to the LCD (via the LCD task).\r
- * If all the demo tasks are executing with their expected behaviour then the\r
- * check hook writes PASS to the LCD (again via the LCD task), as described above.\r
- * The check hook also toggles LED 4 each time it executes.\r
- *\r
- * LED tasks - These just demonstrate how multiple instances of a single task\r
- * definition can be created. Each LED task simply toggles an LED. The task\r
- * parameter is used to pass the number of the LED to be toggled into the task.\r
+ * still operational. The status can be viewed using on the Task Stats page\r
+ * served by the WEB server.\r
*\r
* "uIP" task - This is the task that handles the uIP stack. All TCP/IP\r
* processing is performed in this task.\r
*/\r
\r
-/* Standard includes. */\r
-#include <stdio.h>\r
-\r
/* Scheduler includes. */\r
#include "FreeRTOS.h"\r
#include "task.h"\r
-#include "queue.h"\r
-#include "semphr.h"\r
\r
/* Demo app includes. */\r
#include "BlockQ.h"\r
\r
/*-----------------------------------------------------------*/\r
\r
-/* The number of LED tasks that will be created. */\r
-#define mainNUM_LED_TASKS ( 6 )\r
-\r
/* The time between cycles of the 'check' functionality (defined within the\r
-tick hook. */\r
+tick hook). */\r
#define mainCHECK_DELAY ( ( portTickType ) 5000 / portTICK_RATE_MS )\r
\r
/* Task priorities. */\r
#define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )\r
#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )\r
#define mainUIP_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )\r
-#define mainLCD_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )\r
#define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )\r
#define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY )\r
#define mainFLASH_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )\r
handling library calls. */\r
#define mainBASIC_WEB_STACK_SIZE ( configMINIMAL_STACK_SIZE * 4 )\r
\r
-/* The length of the queue used to send messages to the LCD task. */\r
-#define mainQUEUE_SIZE ( 3 )\r
+/* The message displayed by the WEB server when all tasks are executing\r
+without an error being reported. */\r
+#define mainPASS_STATUS_MESSAGE "All tasks are executing without error."\r
\r
-/* The task that is toggled by the check task. */\r
-#define mainCHECK_TASK_LED ( 4 )\r
/*-----------------------------------------------------------*/\r
\r
/*\r
*/\r
static void prvSetupHardware( void );\r
\r
-/*\r
- * Very simple task that toggles an LED.\r
- */\r
-static void vLEDTask( void *pvParameters );\r
-\r
/*\r
* The task that handles the uIP stack. All TCP/IP processing is performed in\r
* this task.\r
extern void vuIP_Task( void *pvParameters );\r
\r
/*\r
- * The LCD gatekeeper task as described in the comments at the top of this file.\r
- * */\r
-static void vLCDTask( void *pvParameters );\r
+ * Simply returns the current status message for display on served WEB pages.\r
+ */\r
+char *pcGetTaskStatusMessage( void );\r
\r
/*-----------------------------------------------------------*/\r
\r
-/* The queue used to send messages to the LCD task. */\r
-xQueueHandle xLCDQueue;\r
+/* Holds the status message displayed by the WEB server. */\r
+static char *pcStatusMessage = mainPASS_STATUS_MESSAGE;\r
\r
/*-----------------------------------------------------------*/\r
\r
/* Create the uIP task. The WEB server runs in this task. */\r
xTaskCreate( vuIP_Task, ( signed char * ) "uIP", mainBASIC_WEB_STACK_SIZE, ( void * ) NULL, mainUIP_TASK_PRIORITY, NULL );\r
\r
- /* Create the queue used by the LCD task. Messages for display on the LCD\r
- are received via this queue. */\r
- xLCDQueue = xQueueCreate( mainQUEUE_SIZE, sizeof( xLCDMessage ) );\r
-\r
- /* Start the LCD gatekeeper task - as described in the comments at the top\r
- of this file. */\r
- xTaskCreate( vLCDTask, ( signed portCHAR * ) "LCD", configMINIMAL_STACK_SIZE * 2, NULL, mainLCD_TASK_PRIORITY, NULL );\r
-\r
/* Start the scheduler. */\r
vTaskStartScheduler();\r
\r
}\r
/*-----------------------------------------------------------*/\r
\r
-void vLCDTask( void *pvParameters )\r
-{\r
-xLCDMessage xMessage;\r
-unsigned long ulRow = 0;\r
-char cIPAddr[ 17 ]; /* To fit max IP address length of xxx.xxx.xxx.xxx\0 */\r
-\r
- ( void ) pvParameters;\r
-\r
- /* The LCD gatekeeper task as described in the comments at the top of this\r
- file. */\r
-\r
- /* Initialise the LCD and display a startup message that includes the\r
- configured IP address. */\r
- sprintf( cIPAddr, "%d.%d.%d.%d", configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );\r
-\r
- for( ;; )\r
- {\r
- /* Wait for a message to arrive to be displayed. */\r
- while( xQueueReceive( xLCDQueue, &xMessage, portMAX_DELAY ) != pdPASS );\r
-\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
void vApplicationTickHook( void )\r
{\r
-static xLCDMessage xMessage = { "PASS" };\r
static unsigned portLONG ulTicksSinceLastDisplay = 0;\r
-portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;\r
\r
/* Called from every tick interrupt as described in the comments at the top\r
of this file.\r
/* Has an error been found in any task? */\r
if( xAreGenericQueueTasksStillRunning() != pdTRUE )\r
{\r
- xMessage.pcMessage = "ERROR: GEN Q";\r
+ pcStatusMessage = "An error has been detected in the Generic Queue test/demo.";\r
}\r
else if( xAreQueuePeekTasksStillRunning() != pdTRUE )\r
{\r
- xMessage.pcMessage = "ERROR: PEEK Q";\r
+ pcStatusMessage = "An error has been detected in the Peek Queue test/demo.";\r
}\r
else if( xAreBlockingQueuesStillRunning() != pdTRUE )\r
{\r
- xMessage.pcMessage = "ERROR: BLOCK Q";\r
+ pcStatusMessage = "An error has been detected in the Block Queue test/demo.";\r
}\r
else if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )\r
{\r
- xMessage.pcMessage = "ERROR: BLOCK TIME";\r
+ pcStatusMessage = "An error has been detected in the Block Time test/demo.";\r
}\r
else if( xAreSemaphoreTasksStillRunning() != pdTRUE )\r
{\r
- xMessage.pcMessage = "ERROR: SEMAPHR";\r
+ pcStatusMessage = "An error has been detected in the Semaphore test/demo.";\r
}\r
else if( xArePollingQueuesStillRunning() != pdTRUE )\r
{\r
- xMessage.pcMessage = "ERROR: POLL Q";\r
+ pcStatusMessage = "An error has been detected in the Poll Queue test/demo.";\r
}\r
else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )\r
{\r
- xMessage.pcMessage = "ERROR: INT MATH";\r
+ pcStatusMessage = "An error has been detected in the Int Math test/demo.";\r
}\r
else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )\r
{\r
- xMessage.pcMessage = "ERROR: REC MUTEX";\r
+ pcStatusMessage = "An error has been detected in the Mutex test/demo.";\r
}\r
-\r
- /* Send the message to the OLED gatekeeper for display. The\r
- xHigherPriorityTaskWoken parameter is not actually used here\r
- as this function is running in the tick interrupt anyway - but\r
- it must still be supplied. */\r
- xHigherPriorityTaskWoken = pdFALSE;\r
- xQueueSendFromISR( xLCDQueue, &xMessage, &xHigherPriorityTaskWoken );\r
-\r
- /* Also toggle and LED. This can be done from here because in this port\r
- the LED toggling functions don't use critical sections. */\r
- vParTestToggleLED( mainCHECK_TASK_LED );\r
}\r
}\r
/*-----------------------------------------------------------*/\r
\r
+char *pcGetTaskStatusMessage( void )\r
+{\r
+ /* Not bothered about a critical section here. */\r
+ return pcStatusMessage;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
void prvSetupHardware( void )\r
{\r
/* Disable peripherals power. */\r
collecting run time statistical information - basically the percentage\r
of CPU time that each task is utilising. It is called automatically when\r
the scheduler is started (assuming configGENERATE_RUN_TIME_STATS is set\r
- to 1. */\r
+ to 1). */\r
\r
/* Power up and feed the timer. */\r
SC->PCONP |= 0x02UL;\r
projects / freertos / blobdiff