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Add first version of alternative API.

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This commit is contained in:
Richard Barry 2007-12-02 18:37:43 +00:00
parent b6d2b739f3
commit 8603259d40
17 changed files with 2308 additions and 120 deletions
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26
Source/portable/Paradigm/Tern_EE/large_untested/port.c
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@ -77,6 +77,11 @@ is being used. */
/* Trap routine used by taskYIELD() to manually cause a context switch. */
static void __interrupt __far prvYieldProcessor( void );
/* The timer initialisation functions leave interrupts enabled,
which is not what we want. This ISR is installed temporarily in case
the timer fires before we get a change to disable interrupts again. */
static void __interrupt __far prvDummyISR( void );
/*-----------------------------------------------------------*/
/* See header file for description. */
portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )
@ -162,6 +167,15 @@ portBASE_TYPE xPortStartScheduler( void )
}
/*-----------------------------------------------------------*/
static void __interrupt __far prvDummyISR( void )
{
/* The timer initialisation functions leave interrupts enabled,
which is not what we want. This ISR is installed temporarily in case
the timer fires before we get a change to disable interrupts again. */
outport( portEIO_REGISTER, portCLEAR_INTERRUPT );
}
/*-----------------------------------------------------------*/
/* The ISR used depends on whether the preemptive or cooperative scheduler
is being used. */
#if( configUSE_PREEMPTION == 1 )
@ -204,15 +218,23 @@ void vPortEndScheduler( void )
static void prvSetupTimerInterrupt( void )
{
const unsigned portSHORT usTimerACompare = portTIMER_COMPARE, usTimerAMode = portENABLE_TIMER_AND_INTERRUPT;
const unsigned portSHORT usT2_IRQ = 0x13;
/* Configure the timer, the dummy handler is used here as the init
function leaves interrupts enabled. */
t2_init( usTimerAMode, usTimerACompare, prvDummyISR );
/* Disable interrupts again before installing the real handlers. */
portDISABLE_INTERRUPTS();
#if( configUSE_PREEMPTION == 1 )
/* Tick service routine used by the scheduler when preemptive scheduling is
being used. */
t2_init( usTimerAMode, usTimerACompare, prvPreemptiveTick );
setvect( usT2_IRQ, prvPreemptiveTick );
#else
/* Tick service routine used by the scheduler when cooperative scheduling is
being used. */
t2_init( usTimerAMode, usTimerACompare, prvNonPreemptiveTick );
setvect( usT2_IRQ, prvNonPreemptiveTick );
#endif
}