Update to V5.0.2
Richard Barry
17 years ago
parent
48eff41955
commit
1e83961601
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Load Diff
@ -1,233 +1,233 @@
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/*
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FreeRTOS.org V5.0.0 - Copyright (C) 2003-2008 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify
|
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it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
FreeRTOS.org 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
|
||||
along with FreeRTOS.org; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||
the source code for any proprietary components. See the licensing section
|
||||
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||
can be applied.
|
||||
|
||||
***************************************************************************
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||||
***************************************************************************
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||||
* *
|
||||
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||
* and even write all or part of your application on your behalf. *
|
||||
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||
* expedite your project. *
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||||
* *
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||||
***************************************************************************
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||||
***************************************************************************
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||||
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Please ensure to read the configuration and relevant port sections of the
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||||
online documentation.
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||
contact details.
|
||||
|
||||
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||
critical systems.
|
||||
|
||||
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||
licensing and training services.
|
||||
*/
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/*
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BASIC INTERRUPT DRIVEN SERIAL PORT DRIVER FOR UART
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*/
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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#include "queue.h"
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#include "task.h"
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/* Demo application includes. */
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#include "serial.h"
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/* Library includes. */
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#include "xparameters.h"
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#include "xuartlite.h"
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#include "xuartlite_l.h"
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/*-----------------------------------------------------------*/
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/* Queues used to hold received characters, and characters waiting to be
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transmitted. */
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static xQueueHandle xRxedChars;
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static xQueueHandle xCharsForTx;
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/* Structure that maintains information on the UART being used. */
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static XUartLite xUART;
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/*
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* Sample UART interrupt handler. Note this is used to demonstrate the kernel
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* features and test the port - it is not intended to represent an efficient
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* implementation.
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*/
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static void vSerialISR( XUartLite *pxUART );
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/*-----------------------------------------------------------*/
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xComPortHandle xSerialPortInitMinimal( unsigned portLONG ulWantedBaud, unsigned portBASE_TYPE uxQueueLength )
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{
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/* NOTE: The baud rate used by this driver is determined by the hardware
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parameterization of the UART Lite peripheral, and the baud value passed to
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this function has no effect. */
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( void ) ulWantedBaud;
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/* Create the queues used to hold Rx and Tx characters. */
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xRxedChars = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
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xCharsForTx = xQueueCreate( uxQueueLength + 1, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
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/* Only initialise the UART if the queues were created correctly. */
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if( ( xRxedChars != NULL ) && ( xCharsForTx != NULL ) )
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{
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XUartLite_Initialize( &xUART, XPAR_RS232_UART_DEVICE_ID );
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XUartLite_ResetFifos( &xUART );
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XUartLite_DisableInterrupt( &xUART );
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if( xPortInstallInterruptHandler( XPAR_XPS_INTC_0_RS232_UART_INTERRUPT_INTR, ( XInterruptHandler )vSerialISR, (void *)&xUART ) == pdPASS )
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{
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/* xPortInstallInterruptHandler() could fail if
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vPortSetupInterruptController() has not been called prior to this
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function. */
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XUartLite_EnableInterrupt( &xUART );
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}
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}
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/* There is only one port so the handle is not used. */
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return ( xComPortHandle ) 0;
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}
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/*-----------------------------------------------------------*/
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signed portBASE_TYPE xSerialGetChar( xComPortHandle pxPort, signed portCHAR *pcRxedChar, portTickType xBlockTime )
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{
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/* The port handle is not required as this driver only supports one UART. */
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( void ) pxPort;
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/* Get the next character from the buffer. Return false if no characters
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are available, or arrive before xBlockTime expires. */
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if( xQueueReceive( xRxedChars, pcRxedChar, xBlockTime ) )
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{
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return pdTRUE;
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}
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else
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{
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return pdFALSE;
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}
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}
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/*-----------------------------------------------------------*/
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signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed portCHAR cOutChar, portTickType xBlockTime )
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{
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portBASE_TYPE xReturn = pdTRUE;
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/*
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FreeRTOS.org V5.0.2 - Copyright (C) 2003-2008 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
FreeRTOS.org 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
|
||||
along with FreeRTOS.org; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||
the source code for any proprietary components. See the licensing section
|
||||
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||
can be applied.
|
||||
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
* *
|
||||
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||
* and even write all or part of your application on your behalf. *
|
||||
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||
* expedite your project. *
|
||||
* *
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
|
||||
Please ensure to read the configuration and relevant port sections of the
|
||||
online documentation.
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||
contact details.
|
||||
|
||||
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||
critical systems.
|
||||
|
||||
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||
licensing and training services.
|
||||
*/
|
||||
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/*
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BASIC INTERRUPT DRIVEN SERIAL PORT DRIVER FOR UART
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*/
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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#include "queue.h"
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#include "task.h"
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/* Demo application includes. */
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#include "serial.h"
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/* Library includes. */
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#include "xparameters.h"
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#include "xuartlite.h"
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#include "xuartlite_l.h"
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/*-----------------------------------------------------------*/
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/* Queues used to hold received characters, and characters waiting to be
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transmitted. */
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static xQueueHandle xRxedChars;
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static xQueueHandle xCharsForTx;
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/* Structure that maintains information on the UART being used. */
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static XUartLite xUART;
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/*
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* Sample UART interrupt handler. Note this is used to demonstrate the kernel
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* features and test the port - it is not intended to represent an efficient
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* implementation.
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*/
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static void vSerialISR( XUartLite *pxUART );
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/*-----------------------------------------------------------*/
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xComPortHandle xSerialPortInitMinimal( unsigned portLONG ulWantedBaud, unsigned portBASE_TYPE uxQueueLength )
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{
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/* NOTE: The baud rate used by this driver is determined by the hardware
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parameterization of the UART Lite peripheral, and the baud value passed to
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this function has no effect. */
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( void ) ulWantedBaud;
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/* Create the queues used to hold Rx and Tx characters. */
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xRxedChars = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
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xCharsForTx = xQueueCreate( uxQueueLength + 1, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
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/* Only initialise the UART if the queues were created correctly. */
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if( ( xRxedChars != NULL ) && ( xCharsForTx != NULL ) )
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{
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XUartLite_Initialize( &xUART, XPAR_RS232_UART_DEVICE_ID );
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XUartLite_ResetFifos( &xUART );
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XUartLite_DisableInterrupt( &xUART );
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if( xPortInstallInterruptHandler( XPAR_XPS_INTC_0_RS232_UART_INTERRUPT_INTR, ( XInterruptHandler )vSerialISR, (void *)&xUART ) == pdPASS )
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{
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/* xPortInstallInterruptHandler() could fail if
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vPortSetupInterruptController() has not been called prior to this
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function. */
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XUartLite_EnableInterrupt( &xUART );
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}
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}
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/* There is only one port so the handle is not used. */
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return ( xComPortHandle ) 0;
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}
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/*-----------------------------------------------------------*/
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signed portBASE_TYPE xSerialGetChar( xComPortHandle pxPort, signed portCHAR *pcRxedChar, portTickType xBlockTime )
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{
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/* The port handle is not required as this driver only supports one UART. */
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( void ) pxPort;
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/* Get the next character from the buffer. Return false if no characters
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are available, or arrive before xBlockTime expires. */
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if( xQueueReceive( xRxedChars, pcRxedChar, xBlockTime ) )
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{
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return pdTRUE;
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}
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else
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{
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return pdFALSE;
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}
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}
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/*-----------------------------------------------------------*/
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signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed portCHAR cOutChar, portTickType xBlockTime )
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{
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portBASE_TYPE xReturn = pdTRUE;
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/* Just to remove compiler warning. */
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( void ) pxPort;
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portENTER_CRITICAL();
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{
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/* If the UART FIFO is full we can block posting the new data on the
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Tx queue. */
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if( XUartLite_mIsTransmitFull( XPAR_RS232_UART_BASEADDR ) )
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{
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if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
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{
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xReturn = pdFAIL;
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}
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}
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/* Otherwise, if there is data already in the queue we should add the
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new data to the back of the queue to ensure the sequencing is
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maintained. */
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else if( uxQueueMessagesWaiting( xCharsForTx ) )
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{
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if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
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{
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xReturn = pdFAIL;
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}
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}
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/* If the UART FIFO is not full and there is no data already in the
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queue we can write directly to the FIFO without disrupting the
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sequence. */
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else
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{
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XIo_Out32( XPAR_RS232_UART_BASEADDR + XUL_TX_FIFO_OFFSET, cOutChar );
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}
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}
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portEXIT_CRITICAL();
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return xReturn;
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}
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/*-----------------------------------------------------------*/
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void vSerialClose( xComPortHandle xPort )
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{
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/* Not supported as not required by the demo application. */
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( void ) xPort;
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}
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/*-----------------------------------------------------------*/
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static void vSerialISR( XUartLite *pxUART )
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{
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unsigned portLONG ulISRStatus;
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portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE, lDidSomething;
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portCHAR cChar;
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portENTER_CRITICAL();
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{
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/* If the UART FIFO is full we can block posting the new data on the
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Tx queue. */
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if( XUartLite_mIsTransmitFull( XPAR_RS232_UART_BASEADDR ) )
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{
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if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
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{
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xReturn = pdFAIL;
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}
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}
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/* Otherwise, if there is data already in the queue we should add the
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new data to the back of the queue to ensure the sequencing is
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maintained. */
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else if( uxQueueMessagesWaiting( xCharsForTx ) )
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{
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if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
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{
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xReturn = pdFAIL;
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}
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}
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/* If the UART FIFO is not full and there is no data already in the
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queue we can write directly to the FIFO without disrupting the
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sequence. */
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else
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{
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XIo_Out32( XPAR_RS232_UART_BASEADDR + XUL_TX_FIFO_OFFSET, cOutChar );
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}
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}
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portEXIT_CRITICAL();
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return xReturn;
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}
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/*-----------------------------------------------------------*/
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void vSerialClose( xComPortHandle xPort )
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{
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/* Not supported as not required by the demo application. */
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( void ) xPort;
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}
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/*-----------------------------------------------------------*/
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static void vSerialISR( XUartLite *pxUART )
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{
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unsigned portLONG ulISRStatus;
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portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE, lDidSomething;
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portCHAR cChar;
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/* Just to remove compiler warning. */
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( void ) pxUART;
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do
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{
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lDidSomething = pdFALSE;
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ulISRStatus = XIo_In32( XPAR_RS232_UART_BASEADDR + XUL_STATUS_REG_OFFSET );
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if( ( ulISRStatus & XUL_SR_RX_FIFO_VALID_DATA ) != 0 )
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{
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/* A character is available - place it in the queue of received
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characters. This might wake a task that was blocked waiting for
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data. */
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cChar = ( portCHAR ) XIo_In32( XPAR_RS232_UART_BASEADDR + XUL_RX_FIFO_OFFSET );
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xQueueSendFromISR( xRxedChars, &cChar, &xHigherPriorityTaskWoken );
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lDidSomething = pdTRUE;
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}
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if( ( ulISRStatus & XUL_SR_TX_FIFO_EMPTY ) != 0 )
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{
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/* There is space in the FIFO - if there are any characters queue for
|
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transmission they can be sent to the UART now. This might unblock a
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task that was waiting for space to become available on the Tx queue. */
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if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xHigherPriorityTaskWoken ) == pdTRUE )
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{
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XIo_Out32( XPAR_RS232_UART_BASEADDR + XUL_TX_FIFO_OFFSET, cChar );
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lDidSomething = pdTRUE;
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}
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}
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} while( lDidSomething == pdTRUE );
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/* If we woke any tasks we may require a context switch. */
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if( xHigherPriorityTaskWoken )
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{
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portYIELD_FROM_ISR();
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}
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}
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do
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{
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lDidSomething = pdFALSE;
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ulISRStatus = XIo_In32( XPAR_RS232_UART_BASEADDR + XUL_STATUS_REG_OFFSET );
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if( ( ulISRStatus & XUL_SR_RX_FIFO_VALID_DATA ) != 0 )
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{
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/* A character is available - place it in the queue of received
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characters. This might wake a task that was blocked waiting for
|
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data. */
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cChar = ( portCHAR ) XIo_In32( XPAR_RS232_UART_BASEADDR + XUL_RX_FIFO_OFFSET );
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xQueueSendFromISR( xRxedChars, &cChar, &xHigherPriorityTaskWoken );
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lDidSomething = pdTRUE;
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}
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if( ( ulISRStatus & XUL_SR_TX_FIFO_EMPTY ) != 0 )
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{
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/* There is space in the FIFO - if there are any characters queue for
|
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transmission they can be sent to the UART now. This might unblock a
|
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task that was waiting for space to become available on the Tx queue. */
|
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if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xHigherPriorityTaskWoken ) == pdTRUE )
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{
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XIo_Out32( XPAR_RS232_UART_BASEADDR + XUL_TX_FIFO_OFFSET, cChar );
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lDidSomething = pdTRUE;
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}
|
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}
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} while( lDidSomething == pdTRUE );
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|
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/* If we woke any tasks we may require a context switch. */
|
||||
if( xHigherPriorityTaskWoken )
|
||||
{
|
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portYIELD_FROM_ISR();
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}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
@ -1,110 +1,110 @@
|
||||
/*
|
||||
FreeRTOS.org V5.0.0 - Copyright (C) 2003-2008 Richard Barry.
|
||||
|
||||
This file is part of the FreeRTOS.org distribution.
|
||||
|
||||
FreeRTOS.org is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
FreeRTOS.org 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
|
||||
along with FreeRTOS.org; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||
the source code for any proprietary components. See the licensing section
|
||||
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||
can be applied.
|
||||
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
* *
|
||||
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||
* and even write all or part of your application on your behalf. *
|
||||
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||
* expedite your project. *
|
||||
* *
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
|
||||
Please ensure to read the configuration and relevant port sections of the
|
||||
online documentation.
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||
contact details.
|
||||
|
||||
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||
critical systems.
|
||||
|
||||
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||
licensing and training services.
|
||||
*/
|
||||
|
||||
#ifndef FREERTOS_CONFIG_H
|
||||
#define FREERTOS_CONFIG_H
|
||||
|
||||
/*-----------------------------------------------------------
|
||||
* Application specific definitions.
|
||||
*
|
||||
* These definitions should be adjusted for your particular hardware and
|
||||
* application requirements.
|
||||
*
|
||||
* THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
|
||||
* FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
|
||||
*----------------------------------------------------------*/
|
||||
#define configUSE_PREEMPTION 1
|
||||
#define configUSE_IDLE_HOOK 0
|
||||
#define configUSE_TICK_HOOK 0
|
||||
#define configMINIMAL_STACK_SIZE ( ( unsigned portSHORT ) 250 )
|
||||
#define configCPU_CLOCK_HZ ( ( unsigned portLONG ) 200000000 ) /* Clock setup from start.asm in the demo application. */
|
||||
#define configTICK_RATE_HZ ( (portTickType) 1000 )
|
||||
#define configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 6 )
|
||||
#define configTOTAL_HEAP_SIZE ( (size_t) (80 * 1024) )
|
||||
#define configMAX_TASK_NAME_LEN ( 20 )
|
||||
#define configUSE_16_BIT_TICKS 1
|
||||
#define configIDLE_SHOULD_YIELD 1
|
||||
#define configUSE_MUTEXES 1
|
||||
#define configUSE_TRACE_FACILITY 0
|
||||
#define configCHECK_FOR_STACK_OVERFLOW 2
|
||||
#define configUSE_COUNTING_SEMAPHORES 1
|
||||
#define configUSE_APPLICATION_TASK_TAG 1
|
||||
#define configUSE_FPU 0
|
||||
|
||||
|
||||
/* Co-routine definitions. */
|
||||
#define configUSE_CO_ROUTINES 0
|
||||
#define configMAX_CO_ROUTINE_PRIORITIES ( 4 )
|
||||
|
||||
/* Set the following definitions to 1 to include the API function, or zero
|
||||
to exclude the API function. */
|
||||
#define INCLUDE_vTaskPrioritySet 1
|
||||
#define INCLUDE_uxTaskPriorityGet 1
|
||||
#define INCLUDE_vTaskDelete 1
|
||||
#define INCLUDE_vTaskCleanUpResources 1
|
||||
#define INCLUDE_vTaskSuspend 1
|
||||
#define INCLUDE_vResumeFromISR 1
|
||||
#define INCLUDE_vTaskDelayUntil 1
|
||||
#define INCLUDE_vTaskDelay 1
|
||||
#define INCLUDE_xTaskGetSchedulerState 1
|
||||
#define INCLUDE_xTaskGetCurrentTaskHandle 1
|
||||
#define INCLUDE_uxTaskGetStackHighWaterMark 1
|
||||
#define configUSE_RECURSIVE_MUTEXES 1
|
||||
|
||||
|
||||
#if configUSE_FPU == 1
|
||||
/* Include the header that define the traceTASK_SWITCHED_IN() and
|
||||
traceTASK_SWITCHED_OUT() macros to save and restore the floating
|
||||
point registers for tasks that have requested this behaviour. */
|
||||
#include "FPU_Macros.h"
|
||||
#endif
|
||||
|
||||
#endif /* FREERTOS_CONFIG_H */
|
||||
|
||||
|
||||
/*
|
||||
FreeRTOS.org V5.0.2 - Copyright (C) 2003-2008 Richard Barry.
|
||||
|
||||
This file is part of the FreeRTOS.org distribution.
|
||||
|
||||
FreeRTOS.org is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
FreeRTOS.org 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
|
||||
along with FreeRTOS.org; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||
the source code for any proprietary components. See the licensing section
|
||||
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||
can be applied.
|
||||
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
* *
|
||||
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||
* and even write all or part of your application on your behalf. *
|
||||
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||
* expedite your project. *
|
||||
* *
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
|
||||
Please ensure to read the configuration and relevant port sections of the
|
||||
online documentation.
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||
contact details.
|
||||
|
||||
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||
critical systems.
|
||||
|
||||
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||
licensing and training services.
|
||||
*/
|
||||
|
||||
#ifndef FREERTOS_CONFIG_H
|
||||
#define FREERTOS_CONFIG_H
|
||||
|
||||
/*-----------------------------------------------------------
|
||||
* Application specific definitions.
|
||||
*
|
||||
* These definitions should be adjusted for your particular hardware and
|
||||
* application requirements.
|
||||
*
|
||||
* THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
|
||||
* FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
|
||||
*----------------------------------------------------------*/
|
||||
#define configUSE_PREEMPTION 1
|
||||
#define configUSE_IDLE_HOOK 0
|
||||
#define configUSE_TICK_HOOK 0
|
||||
#define configMINIMAL_STACK_SIZE ( ( unsigned portSHORT ) 250 )
|
||||
#define configCPU_CLOCK_HZ ( ( unsigned portLONG ) 200000000 ) /* Clock setup from start.asm in the demo application. */
|
||||
#define configTICK_RATE_HZ ( (portTickType) 1000 )
|
||||
#define configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 6 )
|
||||
#define configTOTAL_HEAP_SIZE ( (size_t) (80 * 1024) )
|
||||
#define configMAX_TASK_NAME_LEN ( 20 )
|
||||
#define configUSE_16_BIT_TICKS 1
|
||||
#define configIDLE_SHOULD_YIELD 1
|
||||
#define configUSE_MUTEXES 1
|
||||
#define configUSE_TRACE_FACILITY 0
|
||||
#define configCHECK_FOR_STACK_OVERFLOW 2
|
||||
#define configUSE_COUNTING_SEMAPHORES 1
|
||||
#define configUSE_APPLICATION_TASK_TAG 1
|
||||
#define configUSE_FPU 0
|
||||
|
||||
|
||||
/* Co-routine definitions. */
|
||||
#define configUSE_CO_ROUTINES 0
|
||||
#define configMAX_CO_ROUTINE_PRIORITIES ( 4 )
|
||||
|
||||
/* Set the following definitions to 1 to include the API function, or zero
|
||||
to exclude the API function. */
|
||||
#define INCLUDE_vTaskPrioritySet 1
|
||||
#define INCLUDE_uxTaskPriorityGet 1
|
||||
#define INCLUDE_vTaskDelete 1
|
||||
#define INCLUDE_vTaskCleanUpResources 1
|
||||
#define INCLUDE_vTaskSuspend 1
|
||||
#define INCLUDE_vResumeFromISR 1
|
||||
#define INCLUDE_vTaskDelayUntil 1
|
||||
#define INCLUDE_vTaskDelay 1
|
||||
#define INCLUDE_xTaskGetSchedulerState 1
|
||||
#define INCLUDE_xTaskGetCurrentTaskHandle 1
|
||||
#define INCLUDE_uxTaskGetStackHighWaterMark 1
|
||||
#define configUSE_RECURSIVE_MUTEXES 1
|
||||
|
||||
|
||||
#if configUSE_FPU == 1
|
||||
/* Include the header that define the traceTASK_SWITCHED_IN() and
|
||||
traceTASK_SWITCHED_OUT() macros to save and restore the floating
|
||||
point registers for tasks that have requested this behaviour. */
|
||||
#include "FPU_Macros.h"
|
||||
#endif
|
||||
|
||||
#endif /* FREERTOS_CONFIG_H */
|
||||
|
||||
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@ -1,233 +1,233 @@
|
||||
/*
|
||||
FreeRTOS.org V5.0.0 - Copyright (C) 2003-2008 Richard Barry.
|
||||
|
||||
This file is part of the FreeRTOS.org distribution.
|
||||
|
||||
FreeRTOS.org is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
FreeRTOS.org 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
|
||||
along with FreeRTOS.org; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||
the source code for any proprietary components. See the licensing section
|
||||
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||
can be applied.
|
||||
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
* *
|
||||
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||
* and even write all or part of your application on your behalf. *
|
||||
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||
* expedite your project. *
|
||||
* *
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
|
||||
Please ensure to read the configuration and relevant port sections of the
|
||||
online documentation.
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||
contact details.
|
||||
|
||||
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||
critical systems.
|
||||
|
||||
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||
licensing and training services.
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
BASIC INTERRUPT DRIVEN SERIAL PORT DRIVER FOR UART
|
||||
*/
|
||||
|
||||
/* Scheduler includes. */
|
||||
#include "FreeRTOS.h"
|
||||
#include "queue.h"
|
||||
#include "task.h"
|
||||
|
||||
/* Demo application includes. */
|
||||
#include "serial.h"
|
||||
|
||||
/* Library includes. */
|
||||
#include "xparameters.h"
|
||||
#include "xuartlite.h"
|
||||
#include "xuartlite_l.h"
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Queues used to hold received characters, and characters waiting to be
|
||||
transmitted. */
|
||||
static xQueueHandle xRxedChars;
|
||||
static xQueueHandle xCharsForTx;
|
||||
|
||||
/* Structure that maintains information on the UART being used. */
|
||||
static XUartLite xUART;
|
||||
|
||||
/*
|
||||
* Sample UART interrupt handler. Note this is used to demonstrate the kernel
|
||||
* features and test the port - it is not intended to represent an efficient
|
||||
* implementation.
|
||||
*/
|
||||
static void vSerialISR( XUartLite *pxUART );
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
xComPortHandle xSerialPortInitMinimal( unsigned portLONG ulWantedBaud, unsigned portBASE_TYPE uxQueueLength )
|
||||
{
|
||||
/* NOTE: The baud rate used by this driver is determined by the hardware
|
||||
parameterization of the UART Lite peripheral, and the baud value passed to
|
||||
this function has no effect. */
|
||||
( void ) ulWantedBaud;
|
||||
|
||||
/* Create the queues used to hold Rx and Tx characters. */
|
||||
xRxedChars = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
|
||||
xCharsForTx = xQueueCreate( uxQueueLength + 1, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
|
||||
|
||||
/* Only initialise the UART if the queues were created correctly. */
|
||||
if( ( xRxedChars != NULL ) && ( xCharsForTx != NULL ) )
|
||||
{
|
||||
|
||||
XUartLite_Initialize( &xUART, XPAR_RS232_UART_DEVICE_ID );
|
||||
XUartLite_ResetFifos( &xUART );
|
||||
XUartLite_DisableInterrupt( &xUART );
|
||||
|
||||
if( xPortInstallInterruptHandler( XPAR_XPS_INTC_0_RS232_UART_INTERRUPT_INTR, ( XInterruptHandler )vSerialISR, (void *)&xUART ) == pdPASS )
|
||||
{
|
||||
/* xPortInstallInterruptHandler() could fail if
|
||||
vPortSetupInterruptController() has not been called prior to this
|
||||
function. */
|
||||
XUartLite_EnableInterrupt( &xUART );
|
||||
}
|
||||
}
|
||||
|
||||
/* There is only one port so the handle is not used. */
|
||||
return ( xComPortHandle ) 0;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
signed portBASE_TYPE xSerialGetChar( xComPortHandle pxPort, signed portCHAR *pcRxedChar, portTickType xBlockTime )
|
||||
{
|
||||
/* The port handle is not required as this driver only supports one UART. */
|
||||
( void ) pxPort;
|
||||
|
||||
/* Get the next character from the buffer. Return false if no characters
|
||||
are available, or arrive before xBlockTime expires. */
|
||||
if( xQueueReceive( xRxedChars, pcRxedChar, xBlockTime ) )
|
||||
{
|
||||
return pdTRUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
return pdFALSE;
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed portCHAR cOutChar, portTickType xBlockTime )
|
||||
{
|
||||
portBASE_TYPE xReturn = pdTRUE;
|
||||
/*
|
||||
FreeRTOS.org V5.0.2 - Copyright (C) 2003-2008 Richard Barry.
|
||||
|
||||
This file is part of the FreeRTOS.org distribution.
|
||||
|
||||
FreeRTOS.org is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
FreeRTOS.org 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
|
||||
along with FreeRTOS.org; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
A special exception to the GPL can be applied should you wish to distribute
|
||||
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||
the source code for any proprietary components. See the licensing section
|
||||
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||
can be applied.
|
||||
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
* *
|
||||
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||
* and even write all or part of your application on your behalf. *
|
||||
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||
* expedite your project. *
|
||||
* *
|
||||
***************************************************************************
|
||||
***************************************************************************
|
||||
|
||||
Please ensure to read the configuration and relevant port sections of the
|
||||
online documentation.
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||
contact details.
|
||||
|
||||
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||
critical systems.
|
||||
|
||||
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||
licensing and training services.
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
BASIC INTERRUPT DRIVEN SERIAL PORT DRIVER FOR UART
|
||||
*/
|
||||
|
||||
/* Scheduler includes. */
|
||||
#include "FreeRTOS.h"
|
||||
#include "queue.h"
|
||||
#include "task.h"
|
||||
|
||||
/* Demo application includes. */
|
||||
#include "serial.h"
|
||||
|
||||
/* Library includes. */
|
||||
#include "xparameters.h"
|
||||
#include "xuartlite.h"
|
||||
#include "xuartlite_l.h"
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Queues used to hold received characters, and characters waiting to be
|
||||
transmitted. */
|
||||
static xQueueHandle xRxedChars;
|
||||
static xQueueHandle xCharsForTx;
|
||||
|
||||
/* Structure that maintains information on the UART being used. */
|
||||
static XUartLite xUART;
|
||||
|
||||
/*
|
||||
* Sample UART interrupt handler. Note this is used to demonstrate the kernel
|
||||
* features and test the port - it is not intended to represent an efficient
|
||||
* implementation.
|
||||
*/
|
||||
static void vSerialISR( XUartLite *pxUART );
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
xComPortHandle xSerialPortInitMinimal( unsigned portLONG ulWantedBaud, unsigned portBASE_TYPE uxQueueLength )
|
||||
{
|
||||
/* NOTE: The baud rate used by this driver is determined by the hardware
|
||||
parameterization of the UART Lite peripheral, and the baud value passed to
|
||||
this function has no effect. */
|
||||
( void ) ulWantedBaud;
|
||||
|
||||
/* Create the queues used to hold Rx and Tx characters. */
|
||||
xRxedChars = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
|
||||
xCharsForTx = xQueueCreate( uxQueueLength + 1, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
|
||||
|
||||
/* Only initialise the UART if the queues were created correctly. */
|
||||
if( ( xRxedChars != NULL ) && ( xCharsForTx != NULL ) )
|
||||
{
|
||||
|
||||
XUartLite_Initialize( &xUART, XPAR_RS232_UART_DEVICE_ID );
|
||||
XUartLite_ResetFifos( &xUART );
|
||||
XUartLite_DisableInterrupt( &xUART );
|
||||
|
||||
if( xPortInstallInterruptHandler( XPAR_XPS_INTC_0_RS232_UART_INTERRUPT_INTR, ( XInterruptHandler )vSerialISR, (void *)&xUART ) == pdPASS )
|
||||
{
|
||||
/* xPortInstallInterruptHandler() could fail if
|
||||
vPortSetupInterruptController() has not been called prior to this
|
||||
function. */
|
||||
XUartLite_EnableInterrupt( &xUART );
|
||||
}
|
||||
}
|
||||
|
||||
/* There is only one port so the handle is not used. */
|
||||
return ( xComPortHandle ) 0;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
signed portBASE_TYPE xSerialGetChar( xComPortHandle pxPort, signed portCHAR *pcRxedChar, portTickType xBlockTime )
|
||||
{
|
||||
/* The port handle is not required as this driver only supports one UART. */
|
||||
( void ) pxPort;
|
||||
|
||||
/* Get the next character from the buffer. Return false if no characters
|
||||
are available, or arrive before xBlockTime expires. */
|
||||
if( xQueueReceive( xRxedChars, pcRxedChar, xBlockTime ) )
|
||||
{
|
||||
return pdTRUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
return pdFALSE;
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed portCHAR cOutChar, portTickType xBlockTime )
|
||||
{
|
||||
portBASE_TYPE xReturn = pdTRUE;
|
||||
|
||||
/* Just to remove compiler warning. */
|
||||
( void ) pxPort;
|
||||
|
||||
portENTER_CRITICAL();
|
||||
{
|
||||
/* If the UART FIFO is full we can block posting the new data on the
|
||||
Tx queue. */
|
||||
if( XUartLite_mIsTransmitFull( XPAR_RS232_UART_BASEADDR ) )
|
||||
{
|
||||
if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
|
||||
{
|
||||
xReturn = pdFAIL;
|
||||
}
|
||||
}
|
||||
/* Otherwise, if there is data already in the queue we should add the
|
||||
new data to the back of the queue to ensure the sequencing is
|
||||
maintained. */
|
||||
else if( uxQueueMessagesWaiting( xCharsForTx ) )
|
||||
{
|
||||
if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
|
||||
{
|
||||
xReturn = pdFAIL;
|
||||
}
|
||||
}
|
||||
/* If the UART FIFO is not full and there is no data already in the
|
||||
queue we can write directly to the FIFO without disrupting the
|
||||
sequence. */
|
||||
else
|
||||
{
|
||||
XIo_Out32( XPAR_RS232_UART_BASEADDR + XUL_TX_FIFO_OFFSET, cOutChar );
|
||||
}
|
||||
}
|
||||
portEXIT_CRITICAL();
|
||||
|
||||
return xReturn;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vSerialClose( xComPortHandle xPort )
|
||||
{
|
||||
/* Not supported as not required by the demo application. */
|
||||
( void ) xPort;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vSerialISR( XUartLite *pxUART )
|
||||
{
|
||||
unsigned portLONG ulISRStatus;
|
||||
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE, lDidSomething;
|
||||
portCHAR cChar;
|
||||
|
||||
portENTER_CRITICAL();
|
||||
{
|
||||
/* If the UART FIFO is full we can block posting the new data on the
|
||||
Tx queue. */
|
||||
if( XUartLite_mIsTransmitFull( XPAR_RS232_UART_BASEADDR ) )
|
||||
{
|
||||
if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
|
||||
{
|
||||
xReturn = pdFAIL;
|
||||
}
|
||||
}
|
||||
/* Otherwise, if there is data already in the queue we should add the
|
||||
new data to the back of the queue to ensure the sequencing is
|
||||
maintained. */
|
||||
else if( uxQueueMessagesWaiting( xCharsForTx ) )
|
||||
{
|
||||
if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
|
||||
{
|
||||
xReturn = pdFAIL;
|
||||
}
|
||||
}
|
||||
/* If the UART FIFO is not full and there is no data already in the
|
||||
queue we can write directly to the FIFO without disrupting the
|
||||
sequence. */
|
||||
else
|
||||
{
|
||||
XIo_Out32( XPAR_RS232_UART_BASEADDR + XUL_TX_FIFO_OFFSET, cOutChar );
|
||||
}
|
||||
}
|
||||
portEXIT_CRITICAL();
|
||||
|
||||
return xReturn;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vSerialClose( xComPortHandle xPort )
|
||||
{
|
||||
/* Not supported as not required by the demo application. */
|
||||
( void ) xPort;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vSerialISR( XUartLite *pxUART )
|
||||
{
|
||||
unsigned portLONG ulISRStatus;
|
||||
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE, lDidSomething;
|
||||
portCHAR cChar;
|
||||
|
||||
/* Just to remove compiler warning. */
|
||||
( void ) pxUART;
|
||||
|
||||
do
|
||||
{
|
||||
lDidSomething = pdFALSE;
|
||||
|
||||
ulISRStatus = XIo_In32( XPAR_RS232_UART_BASEADDR + XUL_STATUS_REG_OFFSET );
|
||||
|
||||
if( ( ulISRStatus & XUL_SR_RX_FIFO_VALID_DATA ) != 0 )
|
||||
{
|
||||
/* A character is available - place it in the queue of received
|
||||
characters. This might wake a task that was blocked waiting for
|
||||
data. */
|
||||
cChar = ( portCHAR ) XIo_In32( XPAR_RS232_UART_BASEADDR + XUL_RX_FIFO_OFFSET );
|
||||
xQueueSendFromISR( xRxedChars, &cChar, &xHigherPriorityTaskWoken );
|
||||
lDidSomething = pdTRUE;
|
||||
}
|
||||
|
||||
if( ( ulISRStatus & XUL_SR_TX_FIFO_EMPTY ) != 0 )
|
||||
{
|
||||
/* There is space in the FIFO - if there are any characters queue for
|
||||
transmission they can be sent to the UART now. This might unblock a
|
||||
task that was waiting for space to become available on the Tx queue. */
|
||||
if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xHigherPriorityTaskWoken ) == pdTRUE )
|
||||
{
|
||||
XIo_Out32( XPAR_RS232_UART_BASEADDR + XUL_TX_FIFO_OFFSET, cChar );
|
||||
lDidSomething = pdTRUE;
|
||||
}
|
||||
}
|
||||
} while( lDidSomething == pdTRUE );
|
||||
|
||||
/* If we woke any tasks we may require a context switch. */
|
||||
if( xHigherPriorityTaskWoken )
|
||||
{
|
||||
portYIELD_FROM_ISR();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
do
|
||||
{
|
||||
lDidSomething = pdFALSE;
|
||||
|
||||
ulISRStatus = XIo_In32( XPAR_RS232_UART_BASEADDR + XUL_STATUS_REG_OFFSET );
|
||||
|
||||
if( ( ulISRStatus & XUL_SR_RX_FIFO_VALID_DATA ) != 0 )
|
||||
{
|
||||
/* A character is available - place it in the queue of received
|
||||
characters. This might wake a task that was blocked waiting for
|
||||
data. */
|
||||
cChar = ( portCHAR ) XIo_In32( XPAR_RS232_UART_BASEADDR + XUL_RX_FIFO_OFFSET );
|
||||
xQueueSendFromISR( xRxedChars, &cChar, &xHigherPriorityTaskWoken );
|
||||
lDidSomething = pdTRUE;
|
||||
}
|
||||
|
||||
if( ( ulISRStatus & XUL_SR_TX_FIFO_EMPTY ) != 0 )
|
||||
{
|
||||
/* There is space in the FIFO - if there are any characters queue for
|
||||
transmission they can be sent to the UART now. This might unblock a
|
||||
task that was waiting for space to become available on the Tx queue. */
|
||||
if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xHigherPriorityTaskWoken ) == pdTRUE )
|
||||
{
|
||||
XIo_Out32( XPAR_RS232_UART_BASEADDR + XUL_TX_FIFO_OFFSET, cChar );
|
||||
lDidSomething = pdTRUE;
|
||||
}
|
||||
}
|
||||
} while( lDidSomething == pdTRUE );
|
||||
|
||||
/* If we woke any tasks we may require a context switch. */
|
||||
if( xHigherPriorityTaskWoken )
|
||||
{
|
||||
portYIELD_FROM_ISR();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue