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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* HD audio Component Binding Interface
*
* Copyright (C) 2021 Cirrus Logic, Inc. and
* Cirrus Logic International Semiconductor Ltd.
*/
#ifndef __HDA_COMPONENT_H__
#define __HDA_COMPONENT_H__
#include <linux/acpi.h>
#include <linux/component.h>
#include <linux/mutex.h>
#include <sound/hda_codec.h>
#define HDA_MAX_COMPONENTS 4
#define HDA_MAX_NAME_SIZE 50
struct hda_component {
struct device *dev;
char name[HDA_MAX_NAME_SIZE];
struct acpi_device *adev;
bool acpi_notifications_supported;
void (*acpi_notify)(acpi_handle handle, u32 event, struct device *dev);
void (*pre_playback_hook)(struct device *dev, int action);
void (*playback_hook)(struct device *dev, int action);
void (*post_playback_hook)(struct device *dev, int action);
};
struct hda_component_parent {
struct mutex mutex;
struct hda_codec *codec;
struct hda_component comps[HDA_MAX_COMPONENTS];
};
#ifdef CONFIG_ACPI
void hda_component_acpi_device_notify(struct hda_component_parent *parent,
acpi_handle handle, u32 event, void *data);
int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc,
struct hda_component_parent *parent,
acpi_notify_handler handler, void *data);
void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc,
struct hda_component_parent *parent,
acpi_notify_handler handler);
#else
static inline void hda_component_acpi_device_notify(struct hda_component_parent *parent,
acpi_handle handle,
u32 event,
void *data)
{
}
static inline int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc,
struct hda_component_parent *parent,
acpi_notify_handler handler,
void *data)
{
return 0;
}
static inline void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc,
struct hda_component_parent *parent,
acpi_notify_handler handler)
{
}
#endif /* ifdef CONFIG_ACPI */
void hda_component_manager_playback_hook(struct hda_component_parent *parent, int action);
int hda_component_manager_init(struct hda_codec *cdc,
struct hda_component_parent *parent, int count,
const char *bus, const char *hid,
const char *match_str,
const struct component_master_ops *ops);
void hda_component_manager_free(struct hda_codec *cdc,
const struct component_master_ops *ops);
int hda_component_manager_bind(struct hda_codec *cdc, struct hda_component_parent *parent);
static inline struct hda_component *hda_component_from_index(struct hda_component_parent *parent,
int index)
{
if (!parent)
return NULL;
if (index < 0 || index >= ARRAY_SIZE(parent->comps))
return NULL;
return &parent->comps[index];
}
static inline void hda_component_manager_unbind(struct hda_codec *cdc,
struct hda_component_parent *parent)
{
mutex_lock(&parent->mutex);
component_unbind_all(hda_codec_dev(cdc), parent);
mutex_unlock(&parent->mutex);
}
#endif /* ifndef __HDA_COMPONENT_H__ */
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