mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-08-20 01:58:32 -04:00
Style: Revert uncrustify for portable directories (#122)
* Style: revert uncrustify portable directories * Style: Uncrustify Some Portable files Co-authored-by: Alfred Gedeon <gedeonag@amazon.com>
This commit is contained in:
alfred gedeon
GitHub
parent
a6da1cd0ce
commit
86653e2a1f
273 changed files with 64802 additions and 65931 deletions
|
|
@ -26,16 +26,16 @@
|
|||
*/
|
||||
|
||||
/*
|
||||
* Changes from V2.6.1
|
||||
*
|
||||
+ Replaced the sUsingPreemption variable with the configUSE_PREEMPTION
|
||||
+ macro to be consistent with the later ports.
|
||||
+
|
||||
+ Changes from V4.0.1
|
||||
+
|
||||
+ Add function prvSetTickFrequencyDefault() to set the DOS tick back to
|
||||
+ its proper value when the scheduler exits.
|
||||
*/
|
||||
Changes from V2.6.1
|
||||
|
||||
+ Replaced the sUsingPreemption variable with the configUSE_PREEMPTION
|
||||
macro to be consistent with the later ports.
|
||||
|
||||
Changes from V4.0.1
|
||||
|
||||
+ Add function prvSetTickFrequencyDefault() to set the DOS tick back to
|
||||
its proper value when the scheduler exits.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <dos.h>
|
||||
|
|
@ -46,13 +46,13 @@
|
|||
#include "portasm.h"
|
||||
|
||||
/*-----------------------------------------------------------
|
||||
* Implementation of functions defined in portable.h for the industrial
|
||||
* PC port.
|
||||
*----------------------------------------------------------*/
|
||||
* Implementation of functions defined in portable.h for the industrial
|
||||
* PC port.
|
||||
*----------------------------------------------------------*/
|
||||
|
||||
/*lint -e950 Non ANSI reserved words okay in this file only. */
|
||||
|
||||
#define portTIMER_INT_NUMBER 0x08
|
||||
#define portTIMER_INT_NUMBER 0x08
|
||||
|
||||
/* Setup hardware for required tick interrupt rate. */
|
||||
static void prvSetTickFrequency( uint32_t ulTickRateHz );
|
||||
|
|
@ -61,29 +61,27 @@ static void prvSetTickFrequency( uint32_t ulTickRateHz );
|
|||
static void prvExitFunction( void );
|
||||
|
||||
/* Either chain to the DOS tick (which itself clears the PIC) or clear the PIC
|
||||
* directly. We chain to the DOS tick as close as possible to the standard DOS
|
||||
* tick rate. */
|
||||
directly. We chain to the DOS tick as close as possible to the standard DOS
|
||||
tick rate. */
|
||||
static void prvPortResetPIC( void );
|
||||
|
||||
/* The ISR used depends on whether the preemptive or cooperative
|
||||
* scheduler is being used. */
|
||||
#if ( configUSE_PREEMPTION == 1 )
|
||||
|
||||
/* Tick service routine used by the scheduler when preemptive scheduling is
|
||||
* being used. */
|
||||
static void __interrupt __far prvPreemptiveTick( void );
|
||||
scheduler is being used. */
|
||||
#if( configUSE_PREEMPTION == 1 )
|
||||
/* Tick service routine used by the scheduler when preemptive scheduling is
|
||||
being used. */
|
||||
static void __interrupt __far prvPreemptiveTick( void );
|
||||
#else
|
||||
|
||||
/* Tick service routine used by the scheduler when cooperative scheduling is
|
||||
* being used. */
|
||||
static void __interrupt __far prvNonPreemptiveTick( void );
|
||||
/* Tick service routine used by the scheduler when cooperative scheduling is
|
||||
being used. */
|
||||
static void __interrupt __far prvNonPreemptiveTick( void );
|
||||
#endif
|
||||
|
||||
/* Trap routine used by taskYIELD() to manually cause a context switch. */
|
||||
static void __interrupt __far prvYieldProcessor( void );
|
||||
|
||||
/* Set the tick frequency back so the floppy drive works correctly when the
|
||||
* scheduler exits. */
|
||||
scheduler exits. */
|
||||
static void prvSetTickFrequencyDefault( void );
|
||||
|
||||
/*lint -e956 File scopes necessary here. */
|
||||
|
|
@ -92,13 +90,13 @@ static void prvSetTickFrequencyDefault( void );
|
|||
static int16_t sDOSTickCounter;
|
||||
|
||||
/* Set true when the vectors are set so the scheduler will service the tick. */
|
||||
static BaseType_t xSchedulerRunning = pdFALSE;
|
||||
static BaseType_t xSchedulerRunning = 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 )();
|
||||
static void ( __interrupt __far *pxOldSwitchISR )();
|
||||
|
||||
/* Points to the original routine installed on the vector we use to chain to the DOS tick. This is then used to restore the original routine during prvExitFunction(). */
|
||||
static void( __interrupt __far * pxOldSwitchISRPlus1 )();
|
||||
static void ( __interrupt __far *pxOldSwitchISRPlus1 )();
|
||||
|
||||
/* Used to restore the original DOS context when the scheduler is ended. */
|
||||
static jmp_buf xJumpBuf;
|
||||
|
|
@ -108,187 +106,183 @@ static jmp_buf xJumpBuf;
|
|||
/*-----------------------------------------------------------*/
|
||||
BaseType_t xPortStartScheduler( void )
|
||||
{
|
||||
pxISR pxOriginalTickISR;
|
||||
pxISR pxOriginalTickISR;
|
||||
|
||||
/* This is called with interrupts already disabled. */
|
||||
|
||||
/* This is called with interrupts already disabled. */
|
||||
/* Remember what was on the interrupts we are going to use
|
||||
so we can put them back later if required. */
|
||||
pxOldSwitchISR = _dos_getvect( portSWITCH_INT_NUMBER );
|
||||
pxOriginalTickISR = _dos_getvect( portTIMER_INT_NUMBER );
|
||||
pxOldSwitchISRPlus1 = _dos_getvect( portSWITCH_INT_NUMBER + 1 );
|
||||
|
||||
/* Remember what was on the interrupts we are going to use
|
||||
* so we can put them back later if required. */
|
||||
pxOldSwitchISR = _dos_getvect( portSWITCH_INT_NUMBER );
|
||||
pxOriginalTickISR = _dos_getvect( portTIMER_INT_NUMBER );
|
||||
pxOldSwitchISRPlus1 = _dos_getvect( portSWITCH_INT_NUMBER + 1 );
|
||||
prvSetTickFrequency( configTICK_RATE_HZ );
|
||||
|
||||
prvSetTickFrequency( configTICK_RATE_HZ );
|
||||
/* Put our manual switch (yield) function on a known
|
||||
vector. */
|
||||
_dos_setvect( portSWITCH_INT_NUMBER, prvYieldProcessor );
|
||||
|
||||
/* Put our manual switch (yield) function on a known
|
||||
* vector. */
|
||||
_dos_setvect( portSWITCH_INT_NUMBER, prvYieldProcessor );
|
||||
/* Put the old tick on a different interrupt number so we can
|
||||
call it when we want. */
|
||||
_dos_setvect( portSWITCH_INT_NUMBER + 1, pxOriginalTickISR );
|
||||
|
||||
/* Put the old tick on a different interrupt number so we can
|
||||
* call it when we want. */
|
||||
_dos_setvect( portSWITCH_INT_NUMBER + 1, pxOriginalTickISR );
|
||||
|
||||
/* The ISR used depends on whether the preemptive or cooperative
|
||||
* scheduler is being used. */
|
||||
#if ( configUSE_PREEMPTION == 1 )
|
||||
{
|
||||
/* Put our tick switch function on the timer interrupt. */
|
||||
_dos_setvect( portTIMER_INT_NUMBER, prvPreemptiveTick );
|
||||
}
|
||||
#else
|
||||
{
|
||||
/* We want the timer interrupt to just increment the tick count. */
|
||||
_dos_setvect( portTIMER_INT_NUMBER, prvNonPreemptiveTick );
|
||||
}
|
||||
/* The ISR used depends on whether the preemptive or cooperative
|
||||
scheduler is being used. */
|
||||
#if( configUSE_PREEMPTION == 1 )
|
||||
{
|
||||
/* Put our tick switch function on the timer interrupt. */
|
||||
_dos_setvect( portTIMER_INT_NUMBER, prvPreemptiveTick );
|
||||
}
|
||||
#else
|
||||
{
|
||||
/* We want the timer interrupt to just increment the tick count. */
|
||||
_dos_setvect( portTIMER_INT_NUMBER, prvNonPreemptiveTick );
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Setup a counter that is used to call the DOS interrupt as close
|
||||
* to it's original frequency as can be achieved given our chosen tick
|
||||
* frequency. */
|
||||
sDOSTickCounter = portTICKS_PER_DOS_TICK;
|
||||
/* Setup a counter that is used to call the DOS interrupt as close
|
||||
to it's original frequency as can be achieved given our chosen tick
|
||||
frequency. */
|
||||
sDOSTickCounter = portTICKS_PER_DOS_TICK;
|
||||
|
||||
/* Clean up function if we want to return to DOS. */
|
||||
if( setjmp( xJumpBuf ) != 0 )
|
||||
{
|
||||
prvExitFunction();
|
||||
xSchedulerRunning = pdFALSE;
|
||||
}
|
||||
else
|
||||
{
|
||||
xSchedulerRunning = pdTRUE;
|
||||
/* Clean up function if we want to return to DOS. */
|
||||
if( setjmp( xJumpBuf ) != 0 )
|
||||
{
|
||||
prvExitFunction();
|
||||
xSchedulerRunning = pdFALSE;
|
||||
}
|
||||
else
|
||||
{
|
||||
xSchedulerRunning = pdTRUE;
|
||||
|
||||
/* Kick off the scheduler by setting up the context of the first task. */
|
||||
portFIRST_CONTEXT();
|
||||
}
|
||||
/* Kick off the scheduler by setting up the context of the first task. */
|
||||
portFIRST_CONTEXT();
|
||||
}
|
||||
|
||||
return xSchedulerRunning;
|
||||
return xSchedulerRunning;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* The ISR used depends on whether the preemptive or cooperative
|
||||
* scheduler is being used. */
|
||||
#if ( configUSE_PREEMPTION == 1 )
|
||||
static void __interrupt __far prvPreemptiveTick( void )
|
||||
{
|
||||
/* Get the scheduler to update the task states following the tick. */
|
||||
if( xTaskIncrementTick() != pdFALSE )
|
||||
{
|
||||
/* Switch in the context of the next task to be run. */
|
||||
portSWITCH_CONTEXT();
|
||||
}
|
||||
scheduler is being used. */
|
||||
#if( configUSE_PREEMPTION == 1 )
|
||||
static void __interrupt __far prvPreemptiveTick( void )
|
||||
{
|
||||
/* Get the scheduler to update the task states following the tick. */
|
||||
if( xTaskIncrementTick() != pdFALSE )
|
||||
{
|
||||
/* Switch in the context of the next task to be run. */
|
||||
portSWITCH_CONTEXT();
|
||||
}
|
||||
|
||||
/* Reset the PIC ready for the next time. */
|
||||
prvPortResetPIC();
|
||||
}
|
||||
#else /* if ( configUSE_PREEMPTION == 1 ) */
|
||||
static void __interrupt __far prvNonPreemptiveTick( void )
|
||||
{
|
||||
/* 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. */
|
||||
xTaskIncrementTick();
|
||||
prvPortResetPIC();
|
||||
}
|
||||
#endif /* if ( configUSE_PREEMPTION == 1 ) */
|
||||
/* Reset the PIC ready for the next time. */
|
||||
prvPortResetPIC();
|
||||
}
|
||||
#else
|
||||
static void __interrupt __far prvNonPreemptiveTick( void )
|
||||
{
|
||||
/* 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. */
|
||||
xTaskIncrementTick();
|
||||
prvPortResetPIC();
|
||||
}
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void __interrupt __far prvYieldProcessor( void )
|
||||
{
|
||||
/* Switch in the context of the next task to be run. */
|
||||
portSWITCH_CONTEXT();
|
||||
/* Switch in the context of the next task to be run. */
|
||||
portSWITCH_CONTEXT();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvPortResetPIC( void )
|
||||
{
|
||||
/* We are going to call the DOS tick interrupt at as close a
|
||||
* frequency to the normal DOS tick as possible. */
|
||||
/* We are going to call the DOS tick interrupt at as close a
|
||||
frequency to the normal DOS tick as possible. */
|
||||
|
||||
/* WE SHOULD NOT DO THIS IF YIELD WAS CALLED. */
|
||||
--sDOSTickCounter;
|
||||
|
||||
if( sDOSTickCounter <= 0 )
|
||||
{
|
||||
sDOSTickCounter = ( int16_t ) portTICKS_PER_DOS_TICK;
|
||||
__asm {
|
||||
int portSWITCH_INT_NUMBER + 1
|
||||
};
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Reset the PIC as the DOS tick is not being called to
|
||||
* do it. */
|
||||
__asm
|
||||
{
|
||||
mov al, 20H
|
||||
out 20H, al
|
||||
};
|
||||
}
|
||||
/* WE SHOULD NOT DO THIS IF YIELD WAS CALLED. */
|
||||
--sDOSTickCounter;
|
||||
if( sDOSTickCounter <= 0 )
|
||||
{
|
||||
sDOSTickCounter = ( int16_t ) portTICKS_PER_DOS_TICK;
|
||||
__asm{ int portSWITCH_INT_NUMBER + 1 };
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Reset the PIC as the DOS tick is not being called to
|
||||
do it. */
|
||||
__asm
|
||||
{
|
||||
mov al, 20H
|
||||
out 20H, al
|
||||
};
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortEndScheduler( void )
|
||||
{
|
||||
/* Jump back to the processor state prior to starting the
|
||||
* scheduler. This means we are not going to be using a
|
||||
* task stack frame so the task can be deleted. */
|
||||
longjmp( xJumpBuf, 1 );
|
||||
/* Jump back to the processor state prior to starting the
|
||||
scheduler. This means we are not going to be using a
|
||||
task stack frame so the task can be deleted. */
|
||||
longjmp( xJumpBuf, 1 );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvExitFunction( void )
|
||||
{
|
||||
void( __interrupt __far * pxOriginalTickISR )();
|
||||
void ( __interrupt __far *pxOriginalTickISR )();
|
||||
|
||||
/* Interrupts should be disabled here anyway - but no
|
||||
* harm in making sure. */
|
||||
portDISABLE_INTERRUPTS();
|
||||
/* Interrupts should be disabled here anyway - but no
|
||||
harm in making sure. */
|
||||
portDISABLE_INTERRUPTS();
|
||||
if( xSchedulerRunning == pdTRUE )
|
||||
{
|
||||
/* Set the DOS tick back onto the timer ticker. */
|
||||
pxOriginalTickISR = _dos_getvect( portSWITCH_INT_NUMBER + 1 );
|
||||
_dos_setvect( portTIMER_INT_NUMBER, pxOriginalTickISR );
|
||||
prvSetTickFrequencyDefault();
|
||||
|
||||
if( xSchedulerRunning == pdTRUE )
|
||||
{
|
||||
/* Set the DOS tick back onto the timer ticker. */
|
||||
pxOriginalTickISR = _dos_getvect( portSWITCH_INT_NUMBER + 1 );
|
||||
_dos_setvect( portTIMER_INT_NUMBER, pxOriginalTickISR );
|
||||
prvSetTickFrequencyDefault();
|
||||
|
||||
/* Put back the switch interrupt routines that was in place
|
||||
* before the scheduler started. */
|
||||
_dos_setvect( portSWITCH_INT_NUMBER, pxOldSwitchISR );
|
||||
_dos_setvect( portSWITCH_INT_NUMBER + 1, pxOldSwitchISRPlus1 );
|
||||
}
|
||||
|
||||
/* The tick timer is back how DOS wants it. We can re-enable
|
||||
* interrupts without the scheduler being called. */
|
||||
portENABLE_INTERRUPTS();
|
||||
/* Put back the switch interrupt routines that was in place
|
||||
before the scheduler started. */
|
||||
_dos_setvect( portSWITCH_INT_NUMBER, pxOldSwitchISR );
|
||||
_dos_setvect( portSWITCH_INT_NUMBER + 1, pxOldSwitchISRPlus1 );
|
||||
}
|
||||
/* The tick timer is back how DOS wants it. We can re-enable
|
||||
interrupts without the scheduler being called. */
|
||||
portENABLE_INTERRUPTS();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvSetTickFrequency( uint32_t ulTickRateHz )
|
||||
{
|
||||
const uint16_t usPIT_MODE = ( uint16_t ) 0x43;
|
||||
const uint16_t usPIT0 = ( uint16_t ) 0x40;
|
||||
const uint32_t ulPIT_CONST = ( uint32_t ) 1193180UL;
|
||||
const uint16_t us8254_CTR0_MODE3 = ( uint16_t ) 0x36;
|
||||
uint32_t ulOutput;
|
||||
const uint16_t usPIT_MODE = ( uint16_t ) 0x43;
|
||||
const uint16_t usPIT0 = ( uint16_t ) 0x40;
|
||||
const uint32_t ulPIT_CONST = ( uint32_t ) 1193180UL;
|
||||
const uint16_t us8254_CTR0_MODE3 = ( uint16_t ) 0x36;
|
||||
uint32_t ulOutput;
|
||||
|
||||
/* Setup the 8245 to tick at the wanted frequency. */
|
||||
portOUTPUT_BYTE( usPIT_MODE, us8254_CTR0_MODE3 );
|
||||
ulOutput = ulPIT_CONST / ulTickRateHz;
|
||||
portOUTPUT_BYTE( usPIT0, ( uint16_t ) ( ulOutput & ( uint32_t ) 0xff ) );
|
||||
ulOutput >>= 8;
|
||||
portOUTPUT_BYTE( usPIT0, ( uint16_t ) ( ulOutput & ( uint32_t ) 0xff ) );
|
||||
/* Setup the 8245 to tick at the wanted frequency. */
|
||||
portOUTPUT_BYTE( usPIT_MODE, us8254_CTR0_MODE3 );
|
||||
ulOutput = ulPIT_CONST / ulTickRateHz;
|
||||
portOUTPUT_BYTE( usPIT0, ( uint16_t )( ulOutput & ( uint32_t ) 0xff ) );
|
||||
ulOutput >>= 8;
|
||||
portOUTPUT_BYTE( usPIT0, ( uint16_t ) ( ulOutput & ( uint32_t ) 0xff ) );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvSetTickFrequencyDefault( void )
|
||||
{
|
||||
const uint16_t usPIT_MODE = ( uint16_t ) 0x43;
|
||||
const uint16_t usPIT0 = ( uint16_t ) 0x40;
|
||||
const uint16_t us8254_CTR0_MODE3 = ( uint16_t ) 0x36;
|
||||
const uint16_t usPIT_MODE = ( uint16_t ) 0x43;
|
||||
const uint16_t usPIT0 = ( uint16_t ) 0x40;
|
||||
const uint16_t us8254_CTR0_MODE3 = ( uint16_t ) 0x36;
|
||||
|
||||
portOUTPUT_BYTE( usPIT_MODE, us8254_CTR0_MODE3 );
|
||||
portOUTPUT_BYTE( usPIT0, 0 );
|
||||
portOUTPUT_BYTE( usPIT0, 0 );
|
||||
portOUTPUT_BYTE( usPIT_MODE, us8254_CTR0_MODE3 );
|
||||
portOUTPUT_BYTE( usPIT0,0 );
|
||||
portOUTPUT_BYTE( usPIT0,0 );
|
||||
}
|
||||
|
||||
|
||||
/*lint +e950 */
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue