Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
103 lines
3.0 KiB
C
103 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* HD audio Component Binding Interface
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*
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* Copyright (C) 2021 Cirrus Logic, Inc. and
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* Cirrus Logic International Semiconductor Ltd.
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*/
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#ifndef __HDA_COMPONENT_H__
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#define __HDA_COMPONENT_H__
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#include <linux/acpi.h>
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#include <linux/component.h>
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#include <linux/mutex.h>
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#include <sound/hda_codec.h>
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#define HDA_MAX_COMPONENTS 4
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#define HDA_MAX_NAME_SIZE 50
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struct hda_component {
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struct device *dev;
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char name[HDA_MAX_NAME_SIZE];
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struct acpi_device *adev;
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bool acpi_notifications_supported;
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void (*acpi_notify)(acpi_handle handle, u32 event, struct device *dev);
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void (*pre_playback_hook)(struct device *dev, int action);
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void (*playback_hook)(struct device *dev, int action);
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void (*post_playback_hook)(struct device *dev, int action);
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};
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struct hda_component_parent {
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struct mutex mutex;
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struct hda_codec *codec;
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struct hda_component comps[HDA_MAX_COMPONENTS];
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};
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#ifdef CONFIG_ACPI
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void hda_component_acpi_device_notify(struct hda_component_parent *parent,
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acpi_handle handle, u32 event, void *data);
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int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc,
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struct hda_component_parent *parent,
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acpi_notify_handler handler, void *data);
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void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc,
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struct hda_component_parent *parent,
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acpi_notify_handler handler);
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#else
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static inline void hda_component_acpi_device_notify(struct hda_component_parent *parent,
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acpi_handle handle,
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u32 event,
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void *data)
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{
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}
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static inline int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc,
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struct hda_component_parent *parent,
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acpi_notify_handler handler,
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void *data)
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{
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return 0;
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}
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static inline void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc,
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struct hda_component_parent *parent,
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acpi_notify_handler handler)
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{
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}
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#endif /* ifdef CONFIG_ACPI */
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void hda_component_manager_playback_hook(struct hda_component_parent *parent, int action);
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int hda_component_manager_init(struct hda_codec *cdc,
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struct hda_component_parent *parent, int count,
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const char *bus, const char *hid,
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const char *match_str,
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const struct component_master_ops *ops);
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void hda_component_manager_free(struct hda_component_parent *parent,
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const struct component_master_ops *ops);
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int hda_component_manager_bind(struct hda_codec *cdc, struct hda_component_parent *parent);
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static inline struct hda_component *hda_component_from_index(struct hda_component_parent *parent,
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int index)
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{
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if (!parent)
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return NULL;
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if (index < 0 || index >= ARRAY_SIZE(parent->comps))
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return NULL;
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return &parent->comps[index];
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}
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static inline void hda_component_manager_unbind(struct hda_codec *cdc,
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struct hda_component_parent *parent)
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{
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guard(mutex)(&parent->mutex);
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component_unbind_all(hda_codec_dev(cdc), parent);
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}
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#endif /* ifndef __HDA_COMPONENT_H__ */
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