X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=FreeRTOS-Plus%2FDemo%2FFreeRTOS_Plus_TCP_Minimal_Windows_Simulator%2Fmain.c;fp=FreeRTOS-Plus%2FDemo%2FFreeRTOS_Plus_TCP_Minimal_Windows_Simulator%2Fmain.c;h=c008f37497b005da0b8b59b5182fcd8780a53b6e;hb=6d63997e5350c3158cac15bbbcfa3793ec4f98bb;hp=0000000000000000000000000000000000000000;hpb=9edd7e905cb8f73678ac2277f44b801a9431c81d;p=freertos diff --git a/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/main.c b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/main.c new file mode 100644 index 000000000..c008f3749 --- /dev/null +++ b/FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/main.c @@ -0,0 +1,380 @@ +/* + FreeRTOS V9.0.0 - Copyright (C) 2016 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 is a cut down version of the project described on the following + * link. Only the simple UDP client and server and the TCP echo clients are + * included in the build: + * http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/examples_FreeRTOS_simulator.html + */ + +/* Standard includes. */ +#include +#include + +/* FreeRTOS includes. */ +#include +#include "task.h" + +/* Demo application includes. */ +#include "FreeRTOS_IP.h" +#include "FreeRTOS_Sockets.h" +#include "SimpleUDPClientAndServer.h" +#include "TCPEchoClient_SingleTasks.h" +#include "demo_logging.h" + +/* Simple UDP client and server task parameters. */ +#define mainSIMPLE_UDP_CLIENT_SERVER_TASK_PRIORITY ( tskIDLE_PRIORITY ) +#define mainSIMPLE_UDP_CLIENT_SERVER_PORT ( 5005UL ) + +/* Echo client task parameters - used for both TCP and UDP echo clients. */ +#define mainECHO_CLIENT_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2 ) /* Not used in the Windows port. */ +#define mainECHO_CLIENT_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 ) + +/* Define a name that will be used for LLMNR and NBNS searches. */ +#define mainHOST_NAME "RTOSDemo" +#define mainDEVICE_NICK_NAME "windows_demo" + +/* Set the following constants to 1 or 0 to define which tasks to include and +exclude: + +mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS: When set to 1 two UDP client tasks +and two UDP server tasks are created. The clients talk to the servers. One set +of tasks use the standard sockets interface, and the other the zero copy sockets +interface. These tasks are self checking and will trigger a configASSERT() if +they detect a difference in the data that is received from that which was sent. +As these tasks use UDP, and can therefore loose packets, they will cause +configASSERT() to be called when they are run in a less than perfect networking +environment. + +mainCREATE_TCP_ECHO_TASKS_SINGLE: When set to 1 a set of tasks are created that +send TCP echo requests to the standard echo port (port 7), then wait for and +verify the echo reply, from within the same task (Tx and Rx are performed in the +same RTOS task). The IP address of the echo server must be configured using the +configECHO_SERVER_ADDR0 to configECHO_SERVER_ADDR3 constants in +FreeRTOSConfig.h. +*/ +#define mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS 1 +#define mainCREATE_TCP_ECHO_TASKS_SINGLE 1 + +/*-----------------------------------------------------------*/ + +/* + * Just seeds the simple pseudo random number generator. + */ +static void prvSRand( UBaseType_t ulSeed ); + +/* + * Miscellaneous initialisation including preparing the logging and seeding the + * random number generator. + */ +static void prvMiscInitialisation( void ); + +/* The default IP and MAC address used by the demo. The address configuration +defined here will be used if ipconfigUSE_DHCP is 0, or if ipconfigUSE_DHCP is +1 but a DHCP server could not be contacted. See the online documentation for +more information. */ +static const uint8_t ucIPAddress[ 4 ] = { configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 }; +static const uint8_t ucNetMask[ 4 ] = { configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 }; +static const uint8_t ucGatewayAddress[ 4 ] = { configGATEWAY_ADDR0, configGATEWAY_ADDR1, configGATEWAY_ADDR2, configGATEWAY_ADDR3 }; +static const uint8_t ucDNSServerAddress[ 4 ] = { configDNS_SERVER_ADDR0, configDNS_SERVER_ADDR1, configDNS_SERVER_ADDR2, configDNS_SERVER_ADDR3 }; + +/* Set the following constant to pdTRUE to log using the method indicated by the +name of the constant, or pdFALSE to not log using the method indicated by the +name of the constant. Options include to standard out (xLogToStdout), to a disk +file (xLogToFile), and to a UDP port (xLogToUDP). If xLogToUDP is set to pdTRUE +then UDP messages are sent to the IP address configured as the echo server +address (see the configECHO_SERVER_ADDR0 definitions in FreeRTOSConfig.h) and +the port number set by configPRINT_PORT in FreeRTOSConfig.h. */ +const BaseType_t xLogToStdout = pdTRUE, xLogToFile = pdFALSE, xLogToUDP = pdFALSE; + +/* Default MAC address configuration. The demo creates a virtual network +connection that uses this MAC address by accessing the raw Ethernet data +to and from a real network connection on the host PC. See the +configNETWORK_INTERFACE_TO_USE definition for information on how to configure +the real network connection to use. */ +const uint8_t ucMACAddress[ 6 ] = { configMAC_ADDR0, configMAC_ADDR1, configMAC_ADDR2, configMAC_ADDR3, configMAC_ADDR4, configMAC_ADDR5 }; + +/* Use by the pseudo random number generator. */ +static UBaseType_t ulNextRand; + +/*-----------------------------------------------------------*/ + +int main( void ) +{ +const uint32_t ulLongTime_ms = pdMS_TO_TICKS( 1000UL ); + + /* + * Instructions for using this project are provided on: + * http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/examples_FreeRTOS_simulator.html + */ + + /* Miscellaneous initialisation including preparing the logging and seeding + the random number generator. */ + prvMiscInitialisation(); + + /* Initialise the network interface. + + ***NOTE*** Tasks that use the network are created in the network event hook + when the network is connected and ready for use (see the definition of + vApplicationIPNetworkEventHook() below). The address values passed in here + are used if ipconfigUSE_DHCP is set to 0, or if ipconfigUSE_DHCP is set to 1 + but a DHCP server cannot be contacted. */ + FreeRTOS_debug_printf( ( "FreeRTOS_IPInit\n" ) ); + FreeRTOS_IPInit( ucIPAddress, ucNetMask, ucGatewayAddress, ucDNSServerAddress, ucMACAddress ); + + /* Start the RTOS scheduler. */ + FreeRTOS_debug_printf( ("vTaskStartScheduler\n") ); + vTaskStartScheduler(); + + /* If all is well, the scheduler will now be running, and the following + line will never be reached. If the following line does execute, then + there was insufficient FreeRTOS heap memory available for the idle and/or + timer tasks to be created. See the memory management section on the + FreeRTOS web site for more details (this is standard text that is not not + really applicable to the Win32 simulator port). */ + for( ;; ) + { + Sleep( ulLongTime_ms ); + } +} +/*-----------------------------------------------------------*/ + +void vApplicationIdleHook( void ) +{ +const uint32_t ulMSToSleep = 1; + + /* This is just a trivial example of an idle hook. It is called on each + cycle of the idle task if configUSE_IDLE_HOOK is set to 1 in + FreeRTOSConfig.h. It must *NOT* attempt to block. In this case the + idle task just sleeps to lower the CPU usage. */ + Sleep( ulMSToSleep ); +} +/*-----------------------------------------------------------*/ + +void vAssertCalled( const char *pcFile, uint32_t ulLine ) +{ +const uint32_t ulLongSleep = 1000UL; +volatile uint32_t ulBlockVariable = 0UL; +volatile char *pcFileName = ( volatile char * ) pcFile; +volatile uint32_t ulLineNumber = ulLine; + + ( void ) pcFileName; + ( void ) ulLineNumber; + + FreeRTOS_debug_printf( ( "vAssertCalled( %s, %ld\n", pcFile, ulLine ) ); + + /* Setting ulBlockVariable to a non-zero value in the debugger will allow + this function to be exited. */ + taskDISABLE_INTERRUPTS(); + { + while( ulBlockVariable == 0UL ) + { + Sleep( ulLongSleep ); + } + } + taskENABLE_INTERRUPTS(); +} +/*-----------------------------------------------------------*/ + +/* Called by FreeRTOS+TCP when the network connects or disconnects. Disconnect +events are only received if implemented in the MAC driver. */ +void vApplicationIPNetworkEventHook( eIPCallbackEvent_t eNetworkEvent ) +{ +uint32_t ulIPAddress, ulNetMask, ulGatewayAddress, ulDNSServerAddress; +char cBuffer[ 16 ]; +static BaseType_t xTasksAlreadyCreated = pdFALSE; + + /* If the network has just come up...*/ + if( eNetworkEvent == eNetworkUp ) + { + /* Create the tasks that use the IP stack if they have not already been + created. */ + if( xTasksAlreadyCreated == pdFALSE ) + { + /* See the comments above the definitions of these pre-processor + macros at the top of this file for a description of the individual + demo tasks. */ + #if( mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS == 1 ) + { + vStartSimpleUDPClientServerTasks( configMINIMAL_STACK_SIZE, mainSIMPLE_UDP_CLIENT_SERVER_PORT, mainSIMPLE_UDP_CLIENT_SERVER_TASK_PRIORITY ); + } + #endif /* mainCREATE_SIMPLE_UDP_CLIENT_SERVER_TASKS */ + + #if( mainCREATE_TCP_ECHO_TASKS_SINGLE == 1 ) + { + vStartTCPEchoClientTasks_SingleTasks( mainECHO_CLIENT_TASK_STACK_SIZE, mainECHO_CLIENT_TASK_PRIORITY ); + } + #endif /* mainCREATE_TCP_ECHO_TASKS_SINGLE */ + + xTasksAlreadyCreated = pdTRUE; + } + + /* Print out the network configuration, which may have come from a DHCP + server. */ + FreeRTOS_GetAddressConfiguration( &ulIPAddress, &ulNetMask, &ulGatewayAddress, &ulDNSServerAddress ); + FreeRTOS_inet_ntoa( ulIPAddress, cBuffer ); + FreeRTOS_printf( ( "\r\n\r\nIP Address: %s\r\n", cBuffer ) ); + + FreeRTOS_inet_ntoa( ulNetMask, cBuffer ); + FreeRTOS_printf( ( "Subnet Mask: %s\r\n", cBuffer ) ); + + FreeRTOS_inet_ntoa( ulGatewayAddress, cBuffer ); + FreeRTOS_printf( ( "Gateway Address: %s\r\n", cBuffer ) ); + + FreeRTOS_inet_ntoa( ulDNSServerAddress, cBuffer ); + FreeRTOS_printf( ( "DNS Server Address: %s\r\n\r\n\r\n", cBuffer ) ); + } +} +/*-----------------------------------------------------------*/ + +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. */ + vAssertCalled( __FILE__, __LINE__ ); +} +/*-----------------------------------------------------------*/ + +UBaseType_t uxRand( void ) +{ +const uint32_t ulMultiplier = 0x015a4e35UL, ulIncrement = 1UL; + + /* Utility function to generate a pseudo random number. */ + + ulNextRand = ( ulMultiplier * ulNextRand ) + ulIncrement; + return( ( int ) ( ulNextRand >> 16UL ) & 0x7fffUL ); +} +/*-----------------------------------------------------------*/ + +static void prvSRand( UBaseType_t ulSeed ) +{ + /* Utility function to seed the pseudo random number generator. */ + ulNextRand = ulSeed; +} +/*-----------------------------------------------------------*/ + +static void prvMiscInitialisation( void ) +{ +time_t xTimeNow; +uint32_t ulLoggingIPAddress; + + ulLoggingIPAddress = FreeRTOS_inet_addr_quick( configECHO_SERVER_ADDR0, configECHO_SERVER_ADDR1, configECHO_SERVER_ADDR2, configECHO_SERVER_ADDR3 ); + vLoggingInit( xLogToStdout, xLogToFile, xLogToUDP, ulLoggingIPAddress, configPRINT_PORT ); + + /* Seed the random number generator. */ + time( &xTimeNow ); + FreeRTOS_debug_printf( ( "Seed for randomiser: %lu\n", xTimeNow ) ); + prvSRand( ( uint32_t ) xTimeNow ); + FreeRTOS_debug_printf( ( "Random numbers: %08X %08X %08X %08X\n", ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32(), ipconfigRAND32() ) ); +} +/*-----------------------------------------------------------*/ + +#if( ipconfigUSE_LLMNR != 0 ) || ( ipconfigUSE_NBNS != 0 ) || ( ipconfigDHCP_REGISTER_HOSTNAME == 1 ) + + const char *pcApplicationHostnameHook( void ) + { + /* Assign the name "FreeRTOS" to this network node. This function will + be called during the DHCP: the machine will be registered with an IP + address plus this name. */ + return mainHOST_NAME; + } + +#endif +/*-----------------------------------------------------------*/ + +#if( ipconfigUSE_LLMNR != 0 ) || ( ipconfigUSE_NBNS != 0 ) + + BaseType_t xApplicationDNSQueryHook( const char *pcName ) + { + BaseType_t xReturn; + + /* Determine if a name lookup is for this node. Two names are given + to this node: that returned by pcApplicationHostnameHook() and that set + by mainDEVICE_NICK_NAME. */ + if( _stricmp( pcName, pcApplicationHostnameHook() ) == 0 ) + { + xReturn = pdPASS; + } + else if( _stricmp( pcName, mainDEVICE_NICK_NAME ) == 0 ) + { + xReturn = pdPASS; + } + else + { + xReturn = pdFAIL; + } + + return xReturn; + } + +#endif