d3e3552f65
There is an API to query if any IRQ is enabled but there is none to query individual IRQ line. So add one. Signed-off-by: Daniel Leung <daniel.leung@intel.com>
142 lines
3.4 KiB
C
142 lines
3.4 KiB
C
/*
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* Copyright (c) 2017 Intel corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Public interface for configuring interrupts
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*/
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#ifndef ZEPHYR_INCLUDE_IRQ_NEXTLEVEL_H_
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#define ZEPHYR_INCLUDE_IRQ_NEXTLEVEL_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @cond INTERNAL_HIDDEN
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*
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* These are for internal use only, so skip these in
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* public documentation.
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*/
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typedef void (*irq_next_level_func_t)(struct device *dev, unsigned int irq);
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typedef unsigned int (*irq_next_level_get_state_t)(struct device *dev);
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typedef void (*irq_next_level_priority_t)(struct device *dev,
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unsigned int irq, unsigned int prio, u32_t flags);
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typedef int (*irq_next_level_get_line_state_t)(struct device *dev,
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unsigned int irq);
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struct irq_next_level_api {
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irq_next_level_func_t intr_enable;
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irq_next_level_func_t intr_disable;
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irq_next_level_get_state_t intr_get_state;
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irq_next_level_priority_t intr_set_priority;
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irq_next_level_get_line_state_t intr_get_line_state;
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};
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/**
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* @endcond
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*/
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/**
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* @brief Enable an IRQ in the next level.
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*
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* This routine enables interrupts present in the interrupt controller.
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*
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* @param dev Pointer to the device structure for the driver instance.
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* @param irq IRQ to be enabled.
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*
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* @return N/A
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*/
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static inline void irq_enable_next_level(struct device *dev, u32_t irq)
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{
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const struct irq_next_level_api *api = dev->driver_api;
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api->intr_enable(dev, irq);
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}
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/**
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* @brief Disable an IRQ in the next level.
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*
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* This routine disables interrupts present in the interrupt controller.
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*
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* @param dev Pointer to the device structure for the driver instance.
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* @param irq IRQ to be disabled.
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*
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* @return N/A
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*/
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static inline void irq_disable_next_level(struct device *dev, u32_t irq)
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{
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const struct irq_next_level_api *api = dev->driver_api;
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api->intr_disable(dev, irq);
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}
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/**
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* @brief Get IRQ enable state.
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*
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* This routine indicates if any interrupts are enabled in the interrupt
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* controller.
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*
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* @param dev Pointer to the device structure for the driver instance.
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*
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* @return interrupt enable state, true or false
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*/
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static inline unsigned int irq_is_enabled_next_level(struct device *dev)
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{
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const struct irq_next_level_api *api = dev->driver_api;
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return api->intr_get_state(dev);
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}
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/**
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* @brief Set IRQ priority.
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*
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* This routine indicates if any interrupts are enabled in the interrupt
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* controller.
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*
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* @param dev Pointer to the device structure for the driver instance.
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* @param irq IRQ to be disabled.
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* @param prio priority for irq in the interrupt controller.
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* @param flags controller specific flags.
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*
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* @return N/A
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*/
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static inline void irq_set_priority_next_level(struct device *dev, u32_t irq,
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u32_t prio, u32_t flags)
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{
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const struct irq_next_level_api *api = dev->driver_api;
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if (api->intr_set_priority)
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api->intr_set_priority(dev, irq, prio, flags);
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}
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/**
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* @brief Get IRQ line enable state.
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*
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* Query if a particular IRQ line is enabled.
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*
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* @param dev Pointer to the device structure for the driver instance.
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* @param irq IRQ line to be queried.
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*
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* @return interrupt enable state, true or false
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*/
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static inline unsigned int irq_line_is_enabled_next_level(struct device *dev,
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unsigned int irq)
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{
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const struct irq_next_level_api *api = dev->driver_api;
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return api->intr_get_line_state(dev, irq);
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}
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_INCLUDE_IRQ_NEXTLEVEL_H_ */
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