len0rd/FreeRTOS-Kernel
1
0
Fork 0
mirror of https://github.com/FreeRTOS/FreeRTOS-Kernel.git synced 2025-08-19 09:38:32 -04:00
Code Issues Projects Releases Packages Wiki Activity

Preparing for the next release...

Browse source 
New port and demo project:  Intel Galileo.
This commit is contained in:
Richard Barry 2015-07-30 11:46:30 +00:00
parent 8b5c27b679
commit cff5cfdd4f
36 changed files with 8158 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

449
FreeRTOS/Demo/IA32_flat_GCC_Galileo_Gen_2/main.c Normal file
View file

@ -0,0 +1,449 @@
/*
FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.
All rights reserved
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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 provide the source code for proprietary components !<<
>>! outside of the FreeRTOS 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. Full license text is available on the following
link: http://www.freertos.org/a00114.html
***************************************************************************
* *
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that is more than just the market leader, it *
* is the industry's de facto standard. *
* *
* Help yourself get started quickly while simultaneously helping *
* to support the FreeRTOS project by purchasing a FreeRTOS *
* tutorial book, reference manual, or both: *
* http://www.FreeRTOS.org/Documentation *
* *
***************************************************************************
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
the FAQ page "My application does not run, what could be wrong?". Have you
defined configASSERT()?
http://www.FreeRTOS.org/support - In return for receiving this top quality
embedded software for free we request you assist our global community by
participating in the support forum.
http://www.FreeRTOS.org/training - Investing in training allows your team to
be as productive as possible as early as possible. Now you can receive
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
Ltd, and the world's leading authority on the world's leading RTOS.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and commercial middleware.
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.
1 tab == 4 spaces!
*/
/******************************************************************************
* This project provides two demo applications. A simple blinky style project,
* and a more comprehensive test and demo application. The
* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting (defined in this file) is used to
* select between the two. The simply blinky demo is implemented and described
* in main_blinky.c. The more comprehensive test and demo application is
* implemented and described in main_full.c.
*
* This file implements the code that is not demo specific, including the
* hardware setup and FreeRTOS hook functions.
*
* ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON
* THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO
* APPLICATION, AND ITS ASSOCIATE FreeRTOS ARCHITECTURE PORT!
* http://www.FreeRTOS.org/RTOS_Intel_Quark_Galileo_GCC.html
*
*/
/* Standard includes. */
#include <stdlib.h>
/* Scheduler include files. */
#include "FreeRTOS.h"
#include "task.h"
#include "semphr.h"
/* Standard demo includes, only necessary for the tick hook. */
#include "TimerDemo.h"
#include "QueueOverwrite.h"
#include "EventGroupsDemo.h"
#include "QueueSet.h"
#include "TaskNotify.h"
#include "IntQueue.h"
/* Added Galileo serial support. */
#include "galileo_support.h"
/* Set to 1 to sit in a loop on start up, allowing a debugger to connect to the
application before main() executes. */
#define mainWAIT_FOR_DEBUG_CONNECTION 0
/* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
or 0 to run the more comprehensive test and demo application. */
#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 1
/*-----------------------------------------------------------*/
/*
* main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
* main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
*/
#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
extern void main_blinky( void );
#else
extern void main_full( void );
#endif /* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 */
/* Prototypes for functions called from asm start up code. */
int main( void );
void CRT_Init( void );
/*
* Prototypes for the standard FreeRTOS callback/hook functions implemented
* within this file.
*/
void vApplicationMallocFailedHook( void );
void vApplicationIdleHook( void );
void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
void vApplicationTickHook( void );
/*
* Perform any hardware/peripheral related initialisation necessary to run the
* demo.
*/
static void prvSetupHardware( void );
static void prvCalibrateLVTimer( void );
/*
* If mainWAIT_FOR_DEBUG_CONNECTION is set to 1 then the following function will
* sit in a loop on start up, allowing a debugger to connect to the application
* before main() executes. If mainWAIT_FOR_DEBUG_CONNECTION is not set to 1
* then the following function does nothing.
*/
static void prvLoopToWaitForDebugConnection( void );
/*
* Helper functions used when an assert is triggered. The first periodically
* displays an assert message, and the second clears the assert message when the
* function called by the configASSERT() macro is exited.
*/
static void prvDisplayAssertion( const char * pcFile, unsigned long ulLine );
static void prvClearAssertionLine( void );
/*-----------------------------------------------------------*/
/* See http://www.FreeRTOS.org/RTOS_Intel_Quark_Galileo_GCC.html for usage
instructions. */
int main( void )
{
/* Optionally wait for a debugger to connect. */
prvLoopToWaitForDebugConnection();
/* Init the UART, GPIO, etc. */
prvSetupHardware();
/* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
of this file. */
#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
{
g_printf_rcc( 3, 2, DEFAULT_SCREEN_COLOR, "Running main_blinky()." );
main_blinky();
}
#else
{
g_printf_rcc( 3, 2, DEFAULT_SCREEN_COLOR, "Running main_full()." );
main_full();
}
#endif
return 0;
}
/*-----------------------------------------------------------*/
void vApplicationMallocFailedHook( void )
{
/* Called if a call to pvPortMalloc() fails because there is insufficient
free memory available in the FreeRTOS heap. pvPortMalloc() is called
internally by FreeRTOS API functions that create tasks, queues, software
timers, and semaphores. The size of the FreeRTOS heap is set by the
configTOTAL_HEAP_SIZE configuration constant in FreeRTOSConfig.h.
Force an assert. */
configASSERT( xTaskGetTickCount() == 0 );
taskDISABLE_INTERRUPTS();
for( ;; );
}
/*-----------------------------------------------------------*/
void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
{
( void ) pcTaskName;
( void ) pxTask;
/* Run time stack overflow checking is performed if
configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
function is called if a stack overflow is detected.
Increase the size of the stack allocated to the offending task.
Force an assert. */
configASSERT( pxTask == NULL );
taskDISABLE_INTERRUPTS();
for( ;; );
}
/*-----------------------------------------------------------*/
void vApplicationIdleHook( void )
{
volatile unsigned long xFreeHeapSpace;
/* This is just a trivial example of an idle hook. It is called on each
cycle of the idle task. It must *NOT* attempt to block. In this case the
idle task just queries the amount of FreeRTOS heap that remains. See the
memory management section on the http://www.FreeRTOS.org web site for memory
management options. If there is a lot of heap memory free then the
configTOTAL_HEAP_SIZE value in FreeRTOSConfig.h can be reduced to free up
RAM. */
xFreeHeapSpace = xPortGetFreeHeapSize();
/* Remove compiler warning about xFreeHeapSpace being set but never used. */
( void ) xFreeHeapSpace;
}
/*-----------------------------------------------------------*/
static void prvDisplayAssertion( const char * pcFile, unsigned long ulLine )
{
extern void vMilliSecondDelay( uint32_t DelayTime );
const uint32_t ul500ms = 500UL;
/* Display assertion file and line. Don't use the gated g_printf just in
the assert was triggered while the gating semaphore was taken. Always print
on line 23. */
UngatedMoveToScreenPosition( 23, 2 );
printf( ANSI_COLOR_RED );
printf( "ASSERT: File = %s, Line = %u\n\r", pcFile, ulLine );
printf( ANSI_COLOR_RESET );
printf( ANSI_SHOW_CURSOR );
vMilliSecondDelay( ul500ms );
}
/*-----------------------------------------------------------*/
static void prvClearAssertionLine( void )
{
UngatedMoveToScreenPosition( 23, 1 );
printf( ANSI_COLOR_RESET );
printf( ANSI_CLEAR_LINE );
printf( ANSI_HIDE_CURSOR );
}
/*-----------------------------------------------------------*/
void vAssertCalled( const char * pcFile, unsigned long ulLine )
{
volatile uint32_t ul = 0;
( void ) pcFile;
( void ) ulLine;
taskENTER_CRITICAL();
{
/* Set ul to a non-zero value or press a key to step out of this
function in order to inspect the location of the assert(). */
/* Clear any pending key presses. */
while( ucGalileoGetchar() != 0 )
{
/* Nothing to do here - the key press is just discarded. */
}
do
{
prvDisplayAssertion(pcFile, ulLine);
} while ( ( ul == pdFALSE ) && ( ucGalileoGetchar() == 0 ) );
prvClearAssertionLine();
}
taskEXIT_CRITICAL();
}
/*-----------------------------------------------------------*/
void vApplicationTickHook( void )
{
#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 0 )
{
extern void vTimerPeriodicISRTests( void );
/* The full demo includes a software timer demo/test that requires
prodding periodically from the tick interrupt. */
vTimerPeriodicISRTests();
/* Call the periodic queue overwrite from ISR demo. */
vQueueOverwritePeriodicISRDemo();
/* Call the periodic event group from ISR demo. */
vPeriodicEventGroupsProcessing();
/* Call the periodic queue set from ISR demo. */
vQueueSetAccessQueueSetFromISR();
/* Use task notifications from an interrupt. */
xNotifyTaskFromISR();
}
#endif
}
/*-----------------------------------------------------------*/
static void prvSetupHardware( void )
{
ClearScreen();
printf( ANSI_COLOR_WHITE );
/* Initialise the serial port and GPIO. */
vInitializeGalileoSerialPort( DEBUG_SERIAL_PORT );
vGalileoInitializeGpioController();
vGalileoInitializeLegacyGPIO();
/* Initialise HPET interrupt(s) */
#if( ( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY != 1 ) && ( hpetHPET_TIMER_IN_USE != 0 ) )
{
portDISABLE_INTERRUPTS();
vInitializeAllHPETInterrupts();
}
#endif
/* Setup the LED. */
vGalileoLegacyGPIOInitializationForLED();
/* Demonstrates how to calibrate LAPIC Timer. The calibration value
calculated here may get overwritten when the scheduler starts. */
prvCalibrateLVTimer();
/* Print RTOS loaded message. */
vPrintBanner();
}
/*-----------------------------------------------------------*/
static void prvLoopToWaitForDebugConnection( void )
{
/* Debug if define = 1. */
#if( mainWAIT_FOR_DEBUG_CONNECTION == 1 )
{
/* When using the debugger, set this value to pdFALSE, and the application
will sit in a loop at the top of main() to allow the debugger to attached
before the application starts running. Once attached, set
ulExitResetSpinLoop to a non-zero value to leave the loop. */
volatile uint32_t ulExitResetSpinLoop = pdFALSE;
/* Must initialize UART before anything will print. */
vInitializeGalileoSerialPort( DEBUG_SERIAL_PORT );
/* RTOS loaded message. */
vPrintBanner();
/* Output instruction message. */
MoveToScreenPosition( 3, 1 );
g_printf( DEFAULT_SCREEN_COLOR );
g_printf( " Waiting for JTAG connection.\n\n\r" );
g_printf( ANSI_COLOR_RESET );
g_printf( " Once connected, either set ulExitResetSpinLoop to a non-zero value,\n\r" );
g_printf( " or you can [PRESS ANY KEY] to start the debug session.\n\n\r" );
printf( ANSI_SHOW_CURSOR );
/* Use the debugger to set the ulExitResetSpinLoop to a non-zero value
or press a key to exit this loop, and step through the application. In
Eclipse, simple hover over the variable to see its value in a pop-over
box, then edit the value in the pop-over box. */
do
{
portNOP();
} while( ( ulExitResetSpinLoop == pdFALSE ) && ( ucGalileoGetchar() == 0 ) );
}
#endif
}
/*-----------------------------------------------------------*/
void CRT_Init( void )
{
extern uint32_t __bss_start[];
extern uint32_t __bss_end[];
extern uint32_t __data_vma[];
extern uint32_t __data_lma[];
extern uint32_t __data_start[];
extern uint32_t __data_end[];
uint32_t x = 255;
size_t xSize;
/* Zero out bss. */
xSize = ( ( size_t ) __bss_end ) - ( ( size_t ) __bss_start );
memset( ( void * ) __bss_start, 0x00, xSize );
/* Copy initialised variables. */
xSize = ( ( size_t ) __data_end ) - ( ( size_t ) __data_start );
memcpy( ( void * ) __data_vma, __data_lma, xSize );
/* Ensure no interrupts are pending. */
do
{
portAPIC_EOI = 0;
x--;
} while( x > 0 );
}
/*-----------------------------------------------------------*/
static void prvCalibrateLVTimer( void )
{
uint32_t uiInitialTimerCounts, uiCalibratedTimerCounts;
/* Disable LAPIC Counter. */
portAPIC_LVT_TIMER = portAPIC_DISABLE;
/* Calibrate the LV Timer counts to ensure it matches the HPET timer over
extended periods. */
uiInitialTimerCounts = ( ( configCPU_CLOCK_HZ >> 4UL ) / configTICK_RATE_HZ );
uiCalibratedTimerCounts = uiCalibrateTimer( 0, hpetLVTIMER );
if( uiCalibratedTimerCounts != 0 )
{
uiInitialTimerCounts = uiCalibratedTimerCounts;
}
/* Set the interrupt frequency. */
portAPIC_TMRDIV = portAPIC_DIV_16;
portAPIC_TIMER_INITIAL_COUNT = uiInitialTimerCounts;
/* Enable LAPIC Counter. */
portAPIC_LVT_TIMER = portAPIC_TIMER_PERIODIC | portAPIC_TIMER_INT_VECTOR;
/* Sometimes needed. */
portAPIC_TMRDIV = portAPIC_DIV_16;
}