104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/* shared_irq - Shared interrupt driver */
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/*
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* Copyright (c) 2015 Intel corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_SHARED_IRQ_H_
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#define ZEPHYR_INCLUDE_SHARED_IRQ_H_
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#include <autoconf.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef int (*isr_t)(const struct device *dev);
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/* driver API definition */
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typedef int (*shared_irq_register_t)(const struct device *dev,
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isr_t isr_func,
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const struct device *isr_dev);
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typedef int (*shared_irq_enable_t)(const struct device *dev,
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const struct device *isr_dev);
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typedef int (*shared_irq_disable_t)(const struct device *dev,
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const struct device *isr_dev);
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struct shared_irq_driver_api {
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shared_irq_register_t isr_register;
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shared_irq_enable_t enable;
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shared_irq_disable_t disable;
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};
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extern int shared_irq_initialize(const struct device *port);
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typedef void (*shared_irq_config_irq_t)(void);
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struct shared_irq_config {
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uint32_t irq_num;
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shared_irq_config_irq_t config;
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uint32_t client_count;
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};
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struct shared_irq_client {
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const struct device *isr_dev;
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isr_t isr_func;
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uint32_t enabled;
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};
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struct shared_irq_runtime {
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struct shared_irq_client client[CONFIG_SHARED_IRQ_NUM_CLIENTS];
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};
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/**
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* @brief Register a device ISR
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* @param dev Pointer to device structure for SHARED_IRQ driver instance.
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* @param isr_func Pointer to the ISR function for the device.
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* @param isr_dev Pointer to the device that will service the interrupt.
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*/
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static inline int shared_irq_isr_register(const struct device *dev,
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isr_t isr_func,
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const struct device *isr_dev)
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{
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const struct shared_irq_driver_api *api =
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(const struct shared_irq_driver_api *)dev->api;
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return api->isr_register(dev, isr_func, isr_dev);
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}
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/**
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* @brief Enable ISR for device
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* @param dev Pointer to device structure for SHARED_IRQ driver instance.
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* @param isr_dev Pointer to the device that will service the interrupt.
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*/
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static inline int shared_irq_enable(const struct device *dev,
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const struct device *isr_dev)
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{
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const struct shared_irq_driver_api *api =
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(const struct shared_irq_driver_api *)dev->api;
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return api->enable(dev, isr_dev);
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}
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/**
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* @brief Disable ISR for device
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* @param dev Pointer to device structure for SHARED_IRQ driver instance.
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* @param isr_dev Pointer to the device that will service the interrupt.
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*/
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static inline int shared_irq_disable(const struct device *dev,
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const struct device *isr_dev)
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{
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const struct shared_irq_driver_api *api =
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(const struct shared_irq_driver_api *)dev->api;
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return api->disable(dev, isr_dev);
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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_SHARED_IRQ_H_ */
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