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Tidy up GCC Cortex-A port layer - still a work in progress.

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This commit is contained in:
Richard Barry 2014-01-24 17:09:31 +00:00
parent 14f895478d
commit b352be2e23
2 changed files with 48 additions and 71 deletions
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23
FreeRTOS/Source/portable/GCC/ARM_CA9/port.c
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@ -114,6 +114,10 @@
#warning configINSTALL_FREERTOS_VECTOR_TABLE was undefined. Defaulting configINSTALL_FREERTOS_VECTOR_TABLE to 0.
#endif
#ifndef configCLEAR_TICK_INTERRUPT
#define configCLEAR_TICK_INTERRUPT()
#endif
/* A critical section is exited when the critical section nesting count reaches
this value. */
#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
@ -151,23 +155,23 @@ mode. */
determined priority level. Sometimes it is necessary to turn interrupt off in
the CPU itself before modifying certain hardware registers. */
#define portCPU_IRQ_DISABLE() \
__asm volatile ( "CPSID i" ); \
__asm volatile ( "DSB" ); \
__asm volatile ( "CPSID i" ); \
__asm volatile ( "DSB" ); \
__asm volatile ( "ISB" );
#define portCPU_IRQ_ENABLE() \
__asm volatile ( "CPSIE i" ); \
__asm volatile ( "DSB" ); \
__asm volatile ( "CPSIE i" ); \
__asm volatile ( "DSB" ); \
__asm volatile ( "ISB" );
/* Macro to unmask all interrupt priorities. */
#define portCLEAR_INTERRUPT_MASK() \
{ \
#define portCLEAR_INTERRUPT_MASK() \
{ \
portCPU_IRQ_DISABLE(); \
portICCPMR_PRIORITY_MASK_REGISTER = portUNMASK_VALUE; \
__asm( "DSB \n" \
"ISB \n" ); \
portICCPMR_PRIORITY_MASK_REGISTER = portUNMASK_VALUE; \
__asm( "DSB \n" \
"ISB \n" ); \
portCPU_IRQ_ENABLE(); \
}
@ -426,6 +430,7 @@ void FreeRTOS_Tick_Handler( void )
/* Ensure all interrupt priorities are active again. */
portCLEAR_INTERRUPT_MASK();
configCLEAR_TICK_INTERRUPT();
}
/*-----------------------------------------------------------*/