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Work in progress on the Cortus port.

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This commit is contained in:
Richard Barry 2010-03-26 20:27:10 +00:00
parent a671be77bf
commit c848059d5f
2 changed files with 36 additions and 52 deletions
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10
Source/portable/GCC/CORTUS_APS3/port.c
View file

@ -71,7 +71,7 @@
/*
* Perform any hardware configuration necessary to generate the tick interrupt.
*/
static void prvSetupTickInterrupt( void );
static void prvSetupTimerInterrupt( void );
/*-----------------------------------------------------------*/
/* Variables used to hold interrupt and critical nesting depths, with variables
@ -123,8 +123,8 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE * pxTopOfStack, pdTASK_COD
portBASE_TYPE xPortStartScheduler( void )
{
/* Set-up the Tick Interrupt. */
prvSetupTickInterrupt();
/* Set-up the timer interrupt. */
prvSetupTimerInterrupt();
/* Enable the TRAP yield. */
irq[ portIRQ_TRAP_YIELD ].ien = 1;
@ -137,7 +137,7 @@ portBASE_TYPE xPortStartScheduler( void )
/* Restore calleree saved registers. */
portRESTORE_CONTEXT_REDUCED();
/* Mimic an ISR epiplogue to start the task executing. */
/* Mimic an ISR epilogue to start the task executing. */
asm __volatile__( \
"mov r1, r14 \n" \
"ldd r6, [r1]+0x20 \n" \
@ -155,7 +155,7 @@ portBASE_TYPE xPortStartScheduler( void )
}
/*-----------------------------------------------------------*/
static void prvSetupTickInterrupt( void )
static void prvSetupTimerInterrupt( void )
{
/* Enable timer interrupts */
counter1->reload = ( configCPU_CLOCK_HZ / configTICK_RATE_HZ ) - 1;

48
Source/portable/GCC/CORTUS_APS3/portmacro.h
View file

@ -114,6 +114,20 @@ extern volatile unsigned portBASE_TYPE uxInterruptNestingCount;
#define portYIELD() asm __volatile__( " trap #%0 "::"i"(portIRQ_TRAP_YIELD):"memory")
/*---------------------------------------------------------------------------*/
extern void vTaskEnterCritical( void );
extern void vTaskExitCritical( void );
#define portENTER_CRITICAL() vTaskEnterCritical()
#define portEXIT_CRITICAL() vTaskExitCritical()
/*---------------------------------------------------------------------------*/
/* Critical section management. */
#define portDISABLE_INTERRUPTS() ic->cpl = ( portSYSTEM_INTERRUPT_PRIORITY_LEVEL + 1 )
#define portENABLE_INTERRUPTS() ic->cpl = portKERNEL_INTERRUPT_PRIORITY_LEVEL
#define portSET_INTERRUPT_MASK_FROM_ISR() ic->cpl; portDISABLE_INTERRUPTS()
#define portRESTORE_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) ic->cpl = uxSavedInterruptStatus
/*---------------------------------------------------------------------------*/
#define portYIELD_FROM_ISR() \
{ \
asm __volatile__( \
@ -132,43 +146,13 @@ extern volatile unsigned portBASE_TYPE uxInterruptNestingCount;
:"i"(portSYSTEM_INTERRUPT_PRIORITY_LEVEL+1) \
:"r2","r3"); \
}
/*---------------------------------------------------------------------------*/
extern void vTaskEnterCritical( void );
extern void vTaskExitCritical( void );
#define portENTER_CRITICAL() vTaskEnterCritical()
#define portEXIT_CRITICAL() vTaskExitCritical()
/*---------------------------------------------------------------------------*/
/* Critical section management. */
#define portDISABLE_INTERRUPTS() \
{ /*ic->cpl = ( portSYSTEM_INTERRUPT_PRIORITY_LEVEL + 1 );*/ \
asm __volatile__( \
" movhi r2, #16384 \n" \
" mov r3, #%0 \n" \
" stb r3, [r2]+2" \
: \
:"i"(portSYSTEM_INTERRUPT_PRIORITY_LEVEL+1) \
:"r2", "r3" ); \
}
/*---------------------------------------------------------------------------*/
#define portENABLE_INTERRUPTS() \
{ /*ic->cpl = portKERNEL_INTERRUPT_PRIORITY_LEVEL;*/ \
asm __volatile__( \
" movhi r2, #16384 \n" \
" mov r3, #%0 \n" \
" stb r3, [r2]+2" \
: \
:"i"(portKERNEL_INTERRUPT_PRIORITY_LEVEL) \
:"r2", "r3" ); \
}
/*---------------------------------------------------------------------------*/
#define portSAVE_CONTEXT_REDUCED() \
{ \
asm __volatile__( \
/* "sub r1, #0x28" */ \
/* "sub r1, #0x28" */ /* Prologue generated by the compiler. */ \
/* "stq r4, [r1]+0x8" */ \
/* "mov r6, psr" */ \
/* "mov r7, rtt" */ \
@ -221,7 +205,7 @@ extern void vTaskExitCritical( void );
"ldq r8, [r1] \n" \
"add r1, #0x1c \n" \
"mov r14, r1 \n" \
/* "mov r1, r14" */ \
/* "mov r1, r14" */ /* Epilogue generated by the compiler. */ \
/* "ldd r6, [r1]+0x20" */ \
/* "mov psr, r6" */ \
/* "mov rtt, r7" */ \