/* | |
FreeRTOS V7.4.1 - Copyright (C) 2013 Real Time Engineers Ltd. | |
FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT | |
http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
*************************************************************************** | |
* * | |
* FreeRTOS tutorial books are available in pdf and paperback. * | |
* Complete, revised, and edited pdf reference manuals are also * | |
* available. * | |
* * | |
* Purchasing FreeRTOS documentation will not only help you, by * | |
* ensuring you get running as quickly as possible and with an * | |
* in-depth knowledge of how to use FreeRTOS, it will also help * | |
* the FreeRTOS project to continue with its mission of providing * | |
* professional grade, cross platform, de facto standard solutions * | |
* for microcontrollers - completely free of charge! * | |
* * | |
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< * | |
* * | |
* Thank you for using FreeRTOS, and thank you for your support! * | |
* * | |
*************************************************************************** | |
This file is part of the FreeRTOS distribution. | |
FreeRTOS is free software; you can redistribute it and/or modify it under | |
the terms of the GNU General Public License (version 2) as published by the | |
Free Software Foundation AND MODIFIED BY the FreeRTOS exception. | |
>>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to | |
distribute a combined work that includes FreeRTOS without being obliged to | |
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kernel. | |
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY | |
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more | |
details. You should have received a copy of the GNU General Public License | |
and the FreeRTOS license exception along with FreeRTOS; if not it can be | |
viewed here: http://www.freertos.org/a00114.html and also obtained by | |
writing to Real Time Engineers Ltd., contact details for whom are available | |
on the FreeRTOS WEB site. | |
1 tab == 4 spaces! | |
*************************************************************************** | |
* * | |
* Having a problem? Start by reading the FAQ "My application does * | |
* not run, what could be wrong?" * | |
* * | |
* http://www.FreeRTOS.org/FAQHelp.html * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org - Documentation, books, training, latest versions, | |
license and Real Time Engineers Ltd. contact details. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, and our new | |
fully thread aware and reentrant UDP/IP stack. | |
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High | |
Integrity Systems, who sell the code with commercial support, | |
indemnification and middleware, under the OpenRTOS brand. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
*/ | |
/* | |
* Creates all the demo application tasks, then starts the scheduler. The WEB | |
* documentation provides more details of the standard demo application tasks. | |
* In addition to the standard demo tasks, the following tasks and tests are | |
* defined and/or created within this file: | |
* | |
* "uIP" task - This is the task that handles the uIP stack. All TCP/IP | |
* processing is performed in this task. It manages the WEB server functionality. | |
* | |
* "Check" task - This only executes every five seconds but has a high priority | |
* to ensure it gets processor time. Its main function is to check that all the | |
* standard demo tasks are still operational. An error found in any task will be | |
* latched in the ulErrorCode variable for display through the WEB server (the | |
* error code is displayed at the foot of the table that contains information on | |
* the state of each task). | |
* | |
* "Reg test" tasks - These fill the registers with known values, then check | |
* that each register still contains its expected value. Each task uses | |
* different values. The tasks run with very low priority so get preempted very | |
* frequently. A register containing an unexpected value is indicative of an | |
* error in the context switching mechanism. | |
* | |
*/ | |
/* Standard includes. */ | |
#include <stdio.h> | |
/* Scheduler includes. */ | |
#include "FreeRTOS.h" | |
#include "task.h" | |
#include "queue.h" | |
#include "semphr.h" | |
/* Demo app includes. */ | |
#include "BlockQ.h" | |
#include "death.h" | |
#include "blocktim.h" | |
#include "flash.h" | |
#include "partest.h" | |
#include "semtest.h" | |
#include "PollQ.h" | |
#include "GenQTest.h" | |
#include "QPeek.h" | |
#include "recmutex.h" | |
#include "IntQueue.h" | |
#include "comtest2.h" | |
/*-----------------------------------------------------------*/ | |
/* The time between cycles of the 'check' functionality - as described at the | |
top of this file. */ | |
#define mainCHECK_TASK_PERIOD ( ( portTickType ) 5000 / portTICK_RATE_MS ) | |
/* Task priorities. */ | |
#define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 2 ) | |
#define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 ) | |
#define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 ) | |
#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 ) | |
#define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY ) | |
/* The WEB server task uses more stack than most other tasks because of its | |
reliance on using sprintf(). */ | |
#define mainBASIC_WEB_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2 ) | |
/* | |
* Configure the hardware for the demo. | |
*/ | |
static void prvSetupHardware( void ); | |
/* | |
* Implements the 'check' task functionality as described at the top of this | |
* file. | |
*/ | |
static void prvCheckTask( void *pvParameters ); | |
/* | |
* The task that implements the WEB server. | |
*/ | |
extern void vuIP_Task( void *pvParameters ); | |
/* | |
* Implement the 'Reg test' functionality as described at the top of this file. | |
*/ | |
static void vRegTest1Task( void *pvParameters ); | |
static void vRegTest2Task( void *pvParameters ); | |
/*-----------------------------------------------------------*/ | |
/* Counters used to detect errors within the reg test tasks. */ | |
static volatile unsigned portLONG ulRegTest1Counter = 0x11111111, ulRegTest2Counter = 0x22222222; | |
/* Any errors that the check task finds in any tasks are latched into | |
ulErrorCode, and then displayed via the WEB server. */ | |
static unsigned portLONG ulErrorCode = 0UL; | |
/*-----------------------------------------------------------*/ | |
int main( void ) | |
{ | |
/* Setup the hardware ready for this demo. */ | |
prvSetupHardware(); | |
/* Create the WEB server task. */ | |
xTaskCreate( vuIP_Task, ( signed portCHAR * ) "uIP", mainBASIC_WEB_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL ); | |
/* Start the standard demo tasks. */ | |
vStartLEDFlashTasks( tskIDLE_PRIORITY ); | |
vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY ); | |
vCreateBlockTimeTasks(); | |
vStartSemaphoreTasks( mainSEM_TEST_PRIORITY ); | |
vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY ); | |
vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY ); | |
vStartQueuePeekTasks(); | |
vStartRecursiveMutexTasks(); | |
/* Start the reg test tasks - defined in this file. */ | |
xTaskCreate( vRegTest1Task, ( signed portCHAR * ) "Reg1", configMINIMAL_STACK_SIZE, ( void * ) &ulRegTest1Counter, tskIDLE_PRIORITY, NULL ); | |
xTaskCreate( vRegTest2Task, ( signed portCHAR * ) "Reg2", configMINIMAL_STACK_SIZE, ( void * ) &ulRegTest2Counter, tskIDLE_PRIORITY, NULL ); | |
/* Create the check task. */ | |
xTaskCreate( prvCheckTask, ( signed portCHAR * ) "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL ); | |
/* Start the scheduler. */ | |
vTaskStartScheduler(); | |
/* Will only get here if there was insufficient heap to create the idle | |
task. */ | |
for( ;; ); | |
} | |
/*-----------------------------------------------------------*/ | |
static void prvCheckTask( void *pvParameters ) | |
{ | |
unsigned ulLastRegTest1Count = 0, ulLastRegTest2Count = 0; | |
portTickType xLastExecutionTime; | |
/* To prevent compiler warnings. */ | |
( void ) pvParameters; | |
/* Initialise the variable used to control our iteration rate prior to | |
its first use. */ | |
xLastExecutionTime = xTaskGetTickCount(); | |
for( ;; ) | |
{ | |
/* Wait until it is time to run the tests again. */ | |
vTaskDelayUntil( &xLastExecutionTime, mainCHECK_TASK_PERIOD ); | |
/* Has an error been found in any task? */ | |
if( xAreGenericQueueTasksStillRunning() != pdTRUE ) | |
{ | |
ulErrorCode |= 0x01UL; | |
} | |
if( xAreQueuePeekTasksStillRunning() != pdTRUE ) | |
{ | |
ulErrorCode |= 0x02UL; | |
} | |
if( xAreBlockingQueuesStillRunning() != pdTRUE ) | |
{ | |
ulErrorCode |= 0x04UL; | |
} | |
if( xAreSemaphoreTasksStillRunning() != pdTRUE ) | |
{ | |
ulErrorCode |= 0x20UL; | |
} | |
if( xArePollingQueuesStillRunning() != pdTRUE ) | |
{ | |
ulErrorCode |= 0x40UL; | |
} | |
if( xAreBlockTimeTestTasksStillRunning() != pdTRUE ) | |
{ | |
ulErrorCode |= 0x80UL; | |
} | |
if( xAreRecursiveMutexTasksStillRunning() != pdTRUE ) | |
{ | |
ulErrorCode |= 0x100UL; | |
} | |
if( ulLastRegTest1Count == ulRegTest1Counter ) | |
{ | |
ulErrorCode |= 0x200UL; | |
} | |
if( ulLastRegTest2Count == ulRegTest2Counter ) | |
{ | |
ulErrorCode |= 0x200UL; | |
} | |
/* Remember the reg test counts so a stall in their values can be | |
detected next time around. */ | |
ulLastRegTest1Count = ulRegTest1Counter; | |
ulLastRegTest2Count = ulRegTest2Counter; | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
unsigned portLONG ulGetErrorCode( void ) | |
{ | |
/* Returns the error code for display via the WEB server. */ | |
return ulErrorCode; | |
} | |
/*-----------------------------------------------------------*/ | |
void prvSetupHardware( void ) | |
{ | |
__attribute__ ((section(".cfmconfig"))) | |
static const unsigned long _cfm[6] = { | |
0, /* KEY_UPPER 0x00000400 */ | |
0, /* KEY_LOWER 0x00000404 */ | |
0, /* CFMPROT 0x00000408 */ | |
0, /* CFMSACC 0x0000040C */ | |
0, /* CFMDACC 0x00000410 */ | |
0, /* CFMSEC 0x00000414 */ | |
}; | |
/* Just to stop compiler warnings. */ | |
( void ) _cfm; | |
/* Ensure the watchdog is disabled. */ | |
MCF_SCM_CWCR = 0; | |
/* Initialize IPSBAR (0x40000000). */ | |
asm volatile( | |
"move.l #0x40000000,%d0 \n" | |
"andi.l #0xC0000000,%d0 \n" | |
"add.l #0x1,%d0 \n" | |
"move.l %d0,0x40000000 " | |
); | |
/* Initialize FLASHBAR (0x00) */ | |
asm volatile( | |
"move.l #0x00,%d0 \n" | |
"andi.l #0xFFF80000,%d0 \n" | |
"add.l #0x41,%d0 \n" | |
"movec %d0,%FLASHBAR " | |
); | |
portDISABLE_INTERRUPTS(); | |
/* RAMBAR. */ | |
MCF_SCM_RAMBAR = MCF_SCM_RAMBAR_BA( RAMBAR_ADDRESS ) | MCF_SCM_RAMBAR_BDE; | |
/* Multiply 25MHz crystal by 12 to get 60MHz clock. */ | |
MCF_CLOCK_SYNCR = MCF_CLOCK_SYNCR_MFD(4) | MCF_CLOCK_SYNCR_CLKSRC| MCF_CLOCK_SYNCR_PLLMODE | MCF_CLOCK_SYNCR_PLLEN ; | |
while (!(MCF_CLOCK_SYNSR & MCF_CLOCK_SYNSR_LOCK)) | |
{ | |
} | |
/* Setup the port used to toggle LEDs. */ | |
vParTestInitialise(); | |
} | |
/*-----------------------------------------------------------*/ | |
void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed portCHAR *pcTaskName ) | |
{ | |
/* This will get called if a stack overflow is detected during the context | |
switch. Set configCHECK_FOR_STACK_OVERFLOWS to 2 to also check for stack | |
problems within nested interrupts, but only do this for debug purposes as | |
it will increase the context switch time. */ | |
( void ) pxTask; | |
( void ) pcTaskName; | |
for( ;; ); | |
} | |
/*-----------------------------------------------------------*/ | |
static void vRegTest1Task( void *pvParameters ) | |
{ | |
/* Sanity check - did we receive the parameter expected? */ | |
if( pvParameters != &ulRegTest1Counter ) | |
{ | |
/* Change here so the check task can detect that an error occurred. */ | |
for( ;; ); | |
} | |
/* Set all the registers to known values, then check that each retains its | |
expected value - as described at the top of this file. If an error is | |
found then the loop counter will no longer be incremented allowing the check | |
task to recognise the error. */ | |
asm volatile ( "reg_test_1_start: \n\t" | |
" moveq #1, %d0 \n\t" | |
" moveq #2, %d1 \n\t" | |
" moveq #3, %d2 \n\t" | |
" moveq #4, %d3 \n\t" | |
" moveq #5, %d4 \n\t" | |
" moveq #6, %d5 \n\t" | |
" moveq #7, %d6 \n\t" | |
" moveq #8, %d7 \n\t" | |
" move #9, %a0 \n\t" | |
" move #10, %a1 \n\t" | |
" move #11, %a2 \n\t" | |
" move #12, %a3 \n\t" | |
" move #13, %a4 \n\t" | |
" move #14, %a5 \n\t" | |
" move #15, %a6 \n\t" | |
" \n\t" | |
" cmpi.l #1, %d0 \n\t" | |
" bne reg_test_1_error \n\t" | |
" cmpi.l #2, %d1 \n\t" | |
" bne reg_test_1_error \n\t" | |
" cmpi.l #3, %d2 \n\t" | |
" bne reg_test_1_error \n\t" | |
" cmpi.l #4, %d3 \n\t" | |
" bne reg_test_1_error \n\t" | |
" cmpi.l #5, %d4 \n\t" | |
" bne reg_test_1_error \n\t" | |
" cmpi.l #6, %d5 \n\t" | |
" bne reg_test_1_error \n\t" | |
" cmpi.l #7, %d6 \n\t" | |
" bne reg_test_1_error \n\t" | |
" cmpi.l #8, %d7 \n\t" | |
" bne reg_test_1_error \n\t" | |
" move %a0, %d0 \n\t" | |
" cmpi.l #9, %d0 \n\t" | |
" bne reg_test_1_error \n\t" | |
" move %a1, %d0 \n\t" | |
" cmpi.l #10, %d0 \n\t" | |
" bne reg_test_1_error \n\t" | |
" move %a2, %d0 \n\t" | |
" cmpi.l #11, %d0 \n\t" | |
" bne reg_test_1_error \n\t" | |
" move %a3, %d0 \n\t" | |
" cmpi.l #12, %d0 \n\t" | |
" bne reg_test_1_error \n\t" | |
" move %a4, %d0 \n\t" | |
" cmpi.l #13, %d0 \n\t" | |
" bne reg_test_1_error \n\t" | |
" move %a5, %d0 \n\t" | |
" cmpi.l #14, %d0 \n\t" | |
" bne reg_test_1_error \n\t" | |
" move %a6, %d0 \n\t" | |
" cmpi.l #15, %d0 \n\t" | |
" bne reg_test_1_error \n\t" | |
" movel ulRegTest1Counter, %d0 \n\t" | |
" addql #1, %d0 \n\t" | |
" movel %d0, ulRegTest1Counter \n\t" | |
" bra reg_test_1_start \n\t" | |
"reg_test_1_error: \n\t" | |
" bra reg_test_1_error \n\t" | |
); | |
} | |
/*-----------------------------------------------------------*/ | |
static void vRegTest2Task( void *pvParameters ) | |
{ | |
/* Sanity check - did we receive the parameter expected? */ | |
if( pvParameters != &ulRegTest2Counter ) | |
{ | |
/* Change here so the check task can detect that an error occurred. */ | |
for( ;; ); | |
} | |
/* Set all the registers to known values, then check that each retains its | |
expected value - as described at the top of this file. If an error is | |
found then the loop counter will no longer be incremented allowing the check | |
task to recognise the error. */ | |
asm volatile ( "reg_test_2_start: \n\t" | |
" moveq #10, %d0 \n\t" | |
" moveq #20, %d1 \n\t" | |
" moveq #30, %d2 \n\t" | |
" moveq #40, %d3 \n\t" | |
" moveq #50, %d4 \n\t" | |
" moveq #60, %d5 \n\t" | |
" moveq #70, %d6 \n\t" | |
" moveq #80, %d7 \n\t" | |
" move #90, %a0 \n\t" | |
" move #100, %a1 \n\t" | |
" move #110, %a2 \n\t" | |
" move #120, %a3 \n\t" | |
" move #130, %a4 \n\t" | |
" move #140, %a5 \n\t" | |
" move #150, %a6 \n\t" | |
" \n\t" | |
" cmpi.l #10, %d0 \n\t" | |
" bne reg_test_2_error \n\t" | |
" cmpi.l #20, %d1 \n\t" | |
" bne reg_test_2_error \n\t" | |
" cmpi.l #30, %d2 \n\t" | |
" bne reg_test_2_error \n\t" | |
" cmpi.l #40, %d3 \n\t" | |
" bne reg_test_2_error \n\t" | |
" cmpi.l #50, %d4 \n\t" | |
" bne reg_test_2_error \n\t" | |
" cmpi.l #60, %d5 \n\t" | |
" bne reg_test_2_error \n\t" | |
" cmpi.l #70, %d6 \n\t" | |
" bne reg_test_2_error \n\t" | |
" cmpi.l #80, %d7 \n\t" | |
" bne reg_test_2_error \n\t" | |
" move %a0, %d0 \n\t" | |
" cmpi.l #90, %d0 \n\t" | |
" bne reg_test_2_error \n\t" | |
" move %a1, %d0 \n\t" | |
" cmpi.l #100, %d0 \n\t" | |
" bne reg_test_2_error \n\t" | |
" move %a2, %d0 \n\t" | |
" cmpi.l #110, %d0 \n\t" | |
" bne reg_test_2_error \n\t" | |
" move %a3, %d0 \n\t" | |
" cmpi.l #120, %d0 \n\t" | |
" bne reg_test_2_error \n\t" | |
" move %a4, %d0 \n\t" | |
" cmpi.l #130, %d0 \n\t" | |
" bne reg_test_2_error \n\t" | |
" move %a5, %d0 \n\t" | |
" cmpi.l #140, %d0 \n\t" | |
" bne reg_test_2_error \n\t" | |
" move %a6, %d0 \n\t" | |
" cmpi.l #150, %d0 \n\t" | |
" bne reg_test_2_error \n\t" | |
" movel ulRegTest1Counter, %d0 \n\t" | |
" addql #1, %d0 \n\t" | |
" movel %d0, ulRegTest2Counter \n\t" | |
" bra reg_test_2_start \n\t" | |
"reg_test_2_error: \n\t" | |
" bra reg_test_2_error \n\t" | |
); | |
} | |
/*-----------------------------------------------------------*/ | |