OpenModem/bertos/cpu/arm/drv/sysirq_at91.h
2014-04-03 22:21:37 +02:00

73 lines
2.4 KiB
C

/**
* \file
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*
*
* \author Francesco Sacchi <batt@develer.com>
*
* \brief System irq handler for Atmel AT91 ARM7 processors (interface).
*/
#ifndef DRV_AT91_SYSIRQ_H
#define DRV_AT91_SYSIRQ_H
#include <cfg/compiler.h>
typedef void (* sysirq_handler_t)(void); ///< Type for system irq handler.
typedef void (* sysirq_setEnable_t)(bool); ///< Type for system irq enable/disable function.
/**
* Structure used to define a system interrupt source.
*/
typedef struct SysIrq
{
bool enabled; ///< Getter for irq enable/disable state.
sysirq_setEnable_t setEnable; ///< Setter for irq enable/disable state.
sysirq_handler_t handler; ///< IRQ handler.
} SysIrq;
/**
* System IRQ ID list.
*/
typedef enum sysirq_t
{
SYSIRQ_PIT, ///< Periodic Interval Timer
/* TODO: add all system irqs */
SYSIRQ_CNT
} sysirq_t;
void sysirq_init(void);
void sysirq_setHandler(sysirq_t irq, sysirq_handler_t handler);
void sysirq_setEnable(sysirq_t irq, bool enable);
bool sysirq_enabled(sysirq_t irq);
#endif /* ARCH_ARM_SYSIRQ_H */