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ARM: irq: Add _arch_irq_is_enabled external interrupt API

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Add _arch_irq_is_enabled external interrupt API to find out
if an IRQ is enabled.

Change-id: I8ccbaa6d4640c1ab8369d2d35c01a2cfbb02f6cd
Signed-off-by: Vinayak Chettimada <vinayak.kariappa.chettimada@nordicsemi.no>
This commit is contained in:
Vinayak Chettimada 2016-09-10 12:38:36 +02:00 • committed by Andrew Boie
commit 79cdf33579
2 changed files with 13 additions and 0 deletions
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11
arch/arm/core/irq_manage.c
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@ -63,6 +63,17 @@ void _arch_irq_disable(unsigned int irq)
_NvicIrqDisable(irq); _NvicIrqDisable(irq);
} }
/**
* @brief Return IRQ enable state
*
* @param irq IRQ line
* @return interrupt enable state, true or false
*/
int _arch_irq_is_enabled(unsigned int irq)
{
return _NvicIsIrqEnabled(irq);
}
/** /**
* @internal * @internal
* *

2
include/arch/arm/cortex_m/irq.h
View file

@ -36,9 +36,11 @@ extern "C" {
GTEXT(_IntExit); GTEXT(_IntExit);
GTEXT(_arch_irq_enable) GTEXT(_arch_irq_enable)
GTEXT(_arch_irq_disable) GTEXT(_arch_irq_disable)
GTEXT(_arch_irq_is_enabled)
#else #else
extern void _arch_irq_enable(unsigned int irq); extern void _arch_irq_enable(unsigned int irq);
extern void _arch_irq_disable(unsigned int irq); extern void _arch_irq_disable(unsigned int irq);
extern int _arch_irq_is_enabled(unsigned int irq);
extern void _IntExit(void); extern void _IntExit(void);