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irq: formalize external zephyr interrupt API

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The app-facing interface for configuring interrupts was never
formally defined, instead it was defined separately for each arch
in their respective arch-specific header files. Occasionally these
would go out of sync.

Now there is a single irq.h header which defines this interface.
To avoid runtime overhead, these map to _arch_* implementations of
each that must be defined in headers pulled in by arch/cpu.h.

Change-Id: I69afbeff31fd07f981b5b291f3c427296b00a4ef
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2016-02-25 13:21:02 -08:00 • committed by Gerrit Code Review
commit e444825ee3
9 changed files with 166 additions and 32 deletions
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7
arch/arm/core/irq_manage.c
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@ -30,6 +30,7 @@
#include <toolchain.h>
#include <sections.h>
#include <sw_isr_table.h>
#include <irq.h>
extern void __reserved(void);
@ -44,7 +45,7 @@ extern void __reserved(void);
*
* @return N/A
*/
void irq_enable(unsigned int irq)
void _arch_irq_enable(unsigned int irq)
{
/* before enabling interrupts, ensure that interrupt is cleared */
_NvicIrqUnpend(irq);
@ -60,7 +61,7 @@ void irq_enable(unsigned int irq)
*
* @return N/A
*/
void irq_disable(unsigned int irq)
void _arch_irq_disable(unsigned int irq)
{
_NvicIrqDisable(irq);
}
@ -160,7 +161,7 @@ void _irq_handler_set(unsigned int irq,
*
* @return the interrupt line number
*/
int irq_connect_dynamic(unsigned int irq,
int _arch_irq_connect_dynamic(unsigned int irq,
unsigned int prio,
void (*isr)(void *arg),
void *arg,