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Add X86 specific arch init code, which fills the privacy-screen lookup table by checking for various vendor specific ACPI interfaces for controlling the privacy-screen. This initial version only checks for the Lenovo Thinkpad specific ACPI methods for privacy-screen control. Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211005202322.700909-4-hdegoede@redhat.com
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright (C) 2020 Red Hat, Inc.
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*
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* Authors:
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* Hans de Goede <hdegoede@redhat.com>
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*/
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#ifndef __DRM_PRIVACY_SCREEN_MACHINE_H__
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#define __DRM_PRIVACY_SCREEN_MACHINE_H__
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#include <linux/list.h>
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/**
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* struct drm_privacy_screen_lookup - static privacy-screen lookup list entry
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*
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* Used for the static lookup-list for mapping privacy-screen consumer
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* dev-connector pairs to a privacy-screen provider.
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*/
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struct drm_privacy_screen_lookup {
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/** @list: Lookup list list-entry. */
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struct list_head list;
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/** @dev_id: Consumer device name or NULL to match all devices. */
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const char *dev_id;
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/** @con_id: Consumer connector name or NULL to match all connectors. */
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const char *con_id;
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/** @provider: dev_name() of the privacy_screen provider. */
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const char *provider;
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};
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void drm_privacy_screen_lookup_add(struct drm_privacy_screen_lookup *lookup);
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void drm_privacy_screen_lookup_remove(struct drm_privacy_screen_lookup *lookup);
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#if IS_ENABLED(CONFIG_DRM_PRIVACY_SCREEN) && IS_ENABLED(CONFIG_X86)
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void drm_privacy_screen_lookup_init(void);
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void drm_privacy_screen_lookup_exit(void);
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#else
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static inline void drm_privacy_screen_lookup_init(void)
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{
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}
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static inline void drm_privacy_screen_lookup_exit(void)
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{
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}
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#endif
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#endif
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