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#ifndef _BFLB_IRQ_H
#define _BFLB_IRQ_H
#include "stdint.h"
/** @addtogroup LHAL
* @{
*/
/** @addtogroup IRQ
* @{
*/
typedef void (*irq_callback)(int irq, void *arg);
/**
* @brief IRQ configuration structure
*
* @param handler Address of the interrupt handler
* @param arg The argument provided to the interrupt handler
*/
struct bflb_irq_info_s {
irq_callback handler;
void *arg;
};
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Interrupt initialize.
*
*/
void bflb_irq_initialize(void);
/**
* @brief Disable global irq and save the previous status.
*
* @return last status
*/
uintptr_t bflb_irq_save(void);
/**
* @brief Enable global irq by the previous status.
*
* @param [in] flags previous status by bflb_irq_save
*/
void bflb_irq_restore(uintptr_t flags);
/**
* @brief Attach interrupt with callback.
*
* @param [in] irq irq number
* @param [in] isr interrupt callback
* @param [in] arg user data
* @return A negated errno value on failure.
*/
int bflb_irq_attach(int irq, irq_callback isr, void *arg);
/**
* @brief Detach interrupt, reset interrupt callback.
*
* @param [in] irq irq number
* @return A negated errno value on failure.
*/
int bflb_irq_detach(int irq);
/**
* @brief Enable interrupt.
*
* @param [in] irq irq number
*/
void bflb_irq_enable(int irq);
/**
* @brief Disable interrupt.
*
* @param [in] irq irq number
*/
void bflb_irq_disable(int irq);
/**
* @brief Set interrupt with pending.
*
* @param [in] irq irq number
*/
void bflb_irq_set_pending(int irq);
/**
* @brief Clear interrupt pending status.
*
* @param [in] irq irq number
*/
void bflb_irq_clear_pending(int irq);
/**
* @brief Set interrupt group.
*
* @param [in] nlbits
*/
void bflb_irq_set_nlbits(uint8_t nlbits);
/**
* @brief Set interrupt priority.
*
* @param [in] irq irq number
* @param [in] preemptprio preempt priority
* @param [in] subprio sub priority
*/
void bflb_irq_set_priority(int irq, uint8_t preemptprio, uint8_t subprio);
#ifdef __cplusplus
}
#endif
/**
* @}
*/
/**
* @}
*/
#endif
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