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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * HD audio Component Binding Interface4 *5 * Copyright (C) 2021 Cirrus Logic, Inc. and6 * Cirrus Logic International Semiconductor Ltd.7 */8 9#ifndef __HDA_COMPONENT_H__10#define __HDA_COMPONENT_H__11 12#include <linux/acpi.h>13#include <linux/component.h>14#include <linux/mutex.h>15#include <sound/hda_codec.h>16 17#define HDA_MAX_COMPONENTS 418#define HDA_MAX_NAME_SIZE 5019 20struct hda_component {21 struct device *dev;22 char name[HDA_MAX_NAME_SIZE];23 struct acpi_device *adev;24 bool acpi_notifications_supported;25 void (*acpi_notify)(acpi_handle handle, u32 event, struct device *dev);26 void (*pre_playback_hook)(struct device *dev, int action);27 void (*playback_hook)(struct device *dev, int action);28 void (*post_playback_hook)(struct device *dev, int action);29};30 31struct hda_component_parent {32 struct mutex mutex;33 struct hda_codec *codec;34 struct hda_component comps[HDA_MAX_COMPONENTS];35};36 37#ifdef CONFIG_ACPI38void hda_component_acpi_device_notify(struct hda_component_parent *parent,39 acpi_handle handle, u32 event, void *data);40int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc,41 struct hda_component_parent *parent,42 acpi_notify_handler handler, void *data);43void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc,44 struct hda_component_parent *parent,45 acpi_notify_handler handler);46#else47static inline void hda_component_acpi_device_notify(struct hda_component_parent *parent,48 acpi_handle handle,49 u32 event,50 void *data)51{52}53 54static inline int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc,55 struct hda_component_parent *parent,56 acpi_notify_handler handler,57 void *data)58 59{60 return 0;61}62 63static inline void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc,64 struct hda_component_parent *parent,65 acpi_notify_handler handler)66{67}68#endif /* ifdef CONFIG_ACPI */69 70void hda_component_manager_playback_hook(struct hda_component_parent *parent, int action);71 72int hda_component_manager_init(struct hda_codec *cdc,73 struct hda_component_parent *parent, int count,74 const char *bus, const char *hid,75 const char *match_str,76 const struct component_master_ops *ops);77 78void hda_component_manager_free(struct hda_component_parent *parent,79 const struct component_master_ops *ops);80 81int hda_component_manager_bind(struct hda_codec *cdc, struct hda_component_parent *parent);82 83static inline struct hda_component *hda_component_from_index(struct hda_component_parent *parent,84 int index)85{86 if (!parent)87 return NULL;88 89 if (index < 0 || index >= ARRAY_SIZE(parent->comps))90 return NULL;91 92 return &parent->comps[index];93}94 95static inline void hda_component_manager_unbind(struct hda_codec *cdc,96 struct hda_component_parent *parent)97{98 mutex_lock(&parent->mutex);99 component_unbind_all(hda_codec_dev(cdc), parent);100 mutex_unlock(&parent->mutex);101}102 103#endif /* ifndef __HDA_COMPONENT_H__ */104