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/*
* Copyright (c) 2015 Intel corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _SHIRQ_H_
#define _SHIRQ_H_
#include <autoconf.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef int (*isr_t)(struct device *dev);
/* driver API definition */
typedef int (*shared_irq_register_t)(struct device *dev,
isr_t isr_func,
struct device *isr_dev);
typedef int (*shared_irq_enable_t)(struct device *dev, struct device *isr_dev);
typedef int (*shared_irq_disable_t)(struct device *dev, struct device *isr_dev);
struct shared_irq_driver_api {
shared_irq_register_t isr_register;
shared_irq_enable_t enable;
shared_irq_disable_t disable;
};
extern int shared_irq_initialize(struct device *port);
typedef void (*shared_irq_config_irq_t)(void);
struct shared_irq_config {
uint32_t irq_num;
shared_irq_config_irq_t config;
uint32_t client_count;
};
struct shared_irq_client {
struct device *isr_dev;
isr_t isr_func;
uint32_t enabled;
};
struct shared_irq_runtime {
struct shared_irq_client client[CONFIG_SHARED_IRQ_NUM_CLIENTS];
};
/**
* @brief Register a device ISR
* @param dev Pointer to device structure for SHARED_IRQ driver instance.
* @param isr_func Pointer to the ISR function for the device.
* @param isr_dev Pointer to the device that will service the interrupt.
*/
static inline int shared_irq_isr_register(struct device *dev, isr_t isr_func,
struct device *isr_dev)
{
struct shared_irq_driver_api *api;
api = (struct shared_irq_driver_api *) dev->driver_api;
return api->isr_register(dev, isr_func, isr_dev);
}
/**
* @brief Enable ISR for device
* @param dev Pointer to device structure for SHARED_IRQ driver instance.
* @param isr_dev Pointer to the device that will service the interrupt.
*/
static inline int shared_irq_enable(struct device *dev, struct device *isr_dev)
{
struct shared_irq_driver_api *api;
api = (struct shared_irq_driver_api *) dev->driver_api;
return api->enable(dev, isr_dev);
}
/**
* @brief Disable ISR for device
* @param dev Pointer to device structure for SHARED_IRQ driver instance.
* @param isr_dev Pointer to the device that will service the interrupt.
*/
static inline int shared_irq_disable(struct device *dev, struct device *isr_dev)
{
struct shared_irq_driver_api *api;
api = (struct shared_irq_driver_api *) dev->driver_api;
return api->disable(dev, isr_dev);
}
#ifdef __cplusplus
}
#endif
#endif /* _SHARED_IRQ_H_ */
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