X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=FreeRTOS%2FSource%2Fportable%2FoWatcom%2F16BitDOS%2FFlsh186%2Fport.c;h=1e91131678981942a5683c0d3eadbd9d25a5b44e;hb=601e593293ff64b639cd47a60a73ee6bd6194085;hp=1d7ae1da63891a3c82c16f089fcfa7bbce68db5d;hpb=90f4c3885b2e63f57a7172c148f67b96cf44eca2;p=freertos diff --git a/FreeRTOS/Source/portable/oWatcom/16BitDOS/Flsh186/port.c b/FreeRTOS/Source/portable/oWatcom/16BitDOS/Flsh186/port.c index 1d7ae1da6..1e9113167 100644 --- a/FreeRTOS/Source/portable/oWatcom/16BitDOS/Flsh186/port.c +++ b/FreeRTOS/Source/portable/oWatcom/16BitDOS/Flsh186/port.c @@ -1,67 +1,70 @@ /* - FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd. - - - *************************************************************************** - * * - * 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! * - * * - *************************************************************************** + FreeRTOS V9.0.1 - Copyright (C) 2017 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. 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 Richard Barry, contact details for whom are available on the - FreeRTOS WEB site. + 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 - 1 tab == 4 spaces! - *************************************************************************** * * - * Having a problem? Start by reading the FAQ "My application does * - * not run, what could be wrong? * + * 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. * * * - * http://www.FreeRTOS.org/FAQHelp.html * + * 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 - Documentation, training, latest information, - license and contact details. - + 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. + including FreeRTOS+Trace - an indispensable productivity tool, a DOS + compatible FAT file system, and our tiny thread aware UDP/IP stack. - 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.OpenRTOS.com. High Integrity Systems also - provide a safety engineered and independently SIL3 certified version under - the SafeRTOS brand: http://www.SafeRTOS.com. + 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! */ /* @@ -99,15 +102,15 @@ Changes from V2.6.1 /*lint -e950 Non ANSI reserved words okay in this file only. */ #define portTIMER_EOI_TYPE ( 8 ) -#define portRESET_PIC() portOUTPUT_WORD( ( unsigned short ) 0xff22, portTIMER_EOI_TYPE ) +#define portRESET_PIC() portOUTPUT_WORD( ( uint16_t ) 0xff22, portTIMER_EOI_TYPE ) #define portTIMER_INT_NUMBER 0x12 -#define portTIMER_1_CONTROL_REGISTER ( ( unsigned short ) 0xff5e ) -#define portTIMER_0_CONTROL_REGISTER ( ( unsigned short ) 0xff56 ) -#define portTIMER_INTERRUPT_ENABLE ( ( unsigned short ) 0x2000 ) +#define portTIMER_1_CONTROL_REGISTER ( ( uint16_t ) 0xff5e ) +#define portTIMER_0_CONTROL_REGISTER ( ( uint16_t ) 0xff56 ) +#define portTIMER_INTERRUPT_ENABLE ( ( uint16_t ) 0x2000 ) /* Setup the hardware to generate the required tick frequency. */ -static void prvSetTickFrequency( unsigned long ulTickRateHz ); +static void prvSetTickFrequency( uint32_t ulTickRateHz ); /* Set the hardware back to the state as per before the scheduler started. */ static void prvExitFunction( void ); @@ -128,7 +131,7 @@ static void __interrupt __far prvYieldProcessor( void ); /*lint -e956 File scopes necessary here. */ /* Set true when the vectors are set so the scheduler will service the tick. */ -static short sSchedulerRunning = pdFALSE; +static int16_t sSchedulerRunning = pdFALSE; /* Points to the original routine installed on the vector we use for manual context switches. This is then used to restore the original routine during prvExitFunction(). */ static void ( __interrupt __far *pxOldSwitchISR )(); @@ -139,7 +142,7 @@ static jmp_buf xJumpBuf; /*lint +e956 */ /*-----------------------------------------------------------*/ -portBASE_TYPE xPortStartScheduler( void ) +BaseType_t xPortStartScheduler( void ) { /* This is called with interrupts already disabled. */ @@ -189,10 +192,11 @@ kernel is being used. */ static void __interrupt __far prvPreemptiveTick( void ) { /* Get the scheduler to update the task states following the tick. */ - vTaskIncrementTick(); - - /* Switch in the context of the next task to be run. */ - portSWITCH_CONTEXT(); + if( xTaskIncrementTick() != pdFALSE ) + { + /* Switch in the context of the next task to be run. */ + portSWITCH_CONTEXT(); + } /* Reset the PIC ready for the next time. */ portRESET_PIC(); @@ -202,7 +206,7 @@ kernel is being used. */ { /* Same as preemptive tick, but the cooperative scheduler is being used so we don't have to switch in the context of the next task. */ - vTaskIncrementTick(); + xTaskIncrementTick(); portRESET_PIC(); } #endif @@ -226,8 +230,8 @@ void vPortEndScheduler( void ) static void prvExitFunction( void ) { -const unsigned short usTimerDisable = 0x0000; -unsigned short usTimer0Control; +const uint16_t usTimerDisable = 0x0000; +uint16_t usTimer0Control; /* Interrupts should be disabled here anyway - but no harm in making sure. */ @@ -254,23 +258,23 @@ unsigned short usTimer0Control; } /*-----------------------------------------------------------*/ -static void prvSetTickFrequency( unsigned long ulTickRateHz ) +static void prvSetTickFrequency( uint32_t ulTickRateHz ) { -const unsigned short usMaxCountRegister = 0xff5a; -const unsigned short usTimerPriorityRegister = 0xff32; -const unsigned short usTimerEnable = 0xC000; -const unsigned short usRetrigger = 0x0001; -const unsigned short usTimerHighPriority = 0x0000; -unsigned short usTimer0Control; +const uint16_t usMaxCountRegister = 0xff5a; +const uint16_t usTimerPriorityRegister = 0xff32; +const uint16_t usTimerEnable = 0xC000; +const uint16_t usRetrigger = 0x0001; +const uint16_t usTimerHighPriority = 0x0000; +uint16_t usTimer0Control; /* ( CPU frequency / 4 ) / clock 2 max count [inpw( 0xff62 ) = 7] */ -const unsigned long ulClockFrequency = 0x7f31a0; +const uint32_t ulClockFrequency = 0x7f31a0; -unsigned long ulTimerCount = ulClockFrequency / ulTickRateHz; +uint32_t ulTimerCount = ulClockFrequency / ulTickRateHz; portOUTPUT_WORD( portTIMER_1_CONTROL_REGISTER, usTimerEnable | portTIMER_INTERRUPT_ENABLE | usRetrigger ); - portOUTPUT_WORD( usMaxCountRegister, ( unsigned short ) ulTimerCount ); + portOUTPUT_WORD( usMaxCountRegister, ( uint16_t ) ulTimerCount ); portOUTPUT_WORD( usTimerPriorityRegister, usTimerHighPriority ); /* Stop the DOS tick - don't do this if you want to maintain a TOD clock. */