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/* SPDX-License-Identifier: GPL-2.0 */
/*
* The MIPI SDCA specification is available for public downloads at
* https://www.mipi.org/mipi-sdca-v1-0-download
*
* Copyright (C) 2025 Cirrus Logic, Inc. and
* Cirrus Logic International Semiconductor Ltd.
*/
#ifndef __SDCA_INTERRUPTS_H__
#define __SDCA_INTERRUPTS_H__
#include <linux/interrupt.h>
#include <linux/mutex.h>
#include <linux/regmap.h>
struct device;
struct snd_soc_component;
struct sdca_function_data;
#define SDCA_MAX_INTERRUPTS 31 /* the last bit is reserved for future extensions */
/**
* struct sdca_interrupt - contains information about a single SDCA interrupt
* @name: The name of the interrupt.
* @component: Pointer to the ASoC component owns the interrupt.
* @function: Pointer to the Function that the interrupt is associated with.
* @entity: Pointer to the Entity that the interrupt is associated with.
* @control: Pointer to the Control that the interrupt is associated with.
* @priv: Pointer to private data for use by the handler.
* @externally_requested: Internal flag used to check if a client driver has
* already requested the interrupt, for custom handling, allowing the core to
* skip handling this interrupt.
*/
struct sdca_interrupt {
const char *name;
struct snd_soc_component *component;
struct sdca_function_data *function;
struct sdca_entity *entity;
struct sdca_control *control;
void *priv;
bool externally_requested;
};
/**
* struct sdca_interrupt_info - contains top-level SDCA interrupt information
* @irq_chip: regmap irq chip structure.
* @irq_data: regmap irq chip data structure.
* @irqs: Array of data for each individual IRQ.
* @irq_lock: Protects access to the list of sdca_interrupt structures.
*/
struct sdca_interrupt_info {
struct regmap_irq_chip irq_chip;
struct regmap_irq_chip_data *irq_data;
struct sdca_interrupt irqs[SDCA_MAX_INTERRUPTS];
struct mutex irq_lock; /* Protect irqs list across functions */
};
int sdca_irq_request(struct device *dev, struct sdca_interrupt_info *interrupt_info,
int sdca_irq, const char *name, irq_handler_t handler,
void *data);
int sdca_irq_data_populate(struct snd_soc_component *component,
struct sdca_function_data *function,
struct sdca_entity *entity,
struct sdca_control *control,
struct sdca_interrupt *interrupt);
int sdca_irq_populate(struct sdca_function_data *function,
struct snd_soc_component *component,
struct sdca_interrupt_info *info);
struct sdca_interrupt_info *sdca_irq_allocate(struct device *dev,
struct regmap *regmap, int irq);
#endif
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