mutter/src/backends/native/meta-kms.h
Jonas Ådahl ce5a5789bb native: Release output device files that are unused
In order to make it possible to e.g. unload an unused DRM device, we
need to make sure that we don't keep the file descriptor open if we
don't need it; otherwise we block anyone from unloading the
corresponding module.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1828>
2021-07-07 21:10:30 +02:00

75 lines
2.5 KiB
C

/*
* Copyright (C) 2018 Red Hat
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef META_KMS_H
#define META_KMS_H
#include <glib-object.h>
#include "backends/meta-backend-private.h"
#include "backends/native/meta-kms-types.h"
typedef enum _MetaKmsFlags
{
META_KMS_FLAG_NONE = 0,
META_KMS_FLAG_NO_MODE_SETTING = 1 << 0,
} MetaKmsFlags;
typedef enum _MetaKmsUpdateFlag
{
META_KMS_UPDATE_FLAG_NONE = 0,
META_KMS_UPDATE_FLAG_PRESERVE_ON_ERROR = 1 << 0,
} MetaKmsUpdateFlag;
#define META_TYPE_KMS (meta_kms_get_type ())
G_DECLARE_FINAL_TYPE (MetaKms, meta_kms, META, KMS, GObject)
MetaKmsUpdate * meta_kms_ensure_pending_update (MetaKms *kms,
MetaKmsDevice *device);
MetaKmsUpdate * meta_kms_get_pending_update (MetaKms *kms,
MetaKmsDevice *device);
MetaKmsFeedback * meta_kms_post_pending_update_sync (MetaKms *kms,
MetaKmsDevice *device,
MetaKmsUpdateFlag flags);
void meta_kms_discard_pending_page_flips (MetaKms *kms);
void meta_kms_notify_modes_set (MetaKms *kms);
MetaBackend * meta_kms_get_backend (MetaKms *kms);
GList * meta_kms_get_devices (MetaKms *kms);
void meta_kms_resume (MetaKms *kms);
MetaKmsDevice * meta_kms_create_device (MetaKms *kms,
const char *path,
MetaKmsDeviceFlag flags,
GError **error);
void meta_kms_prepare_shutdown (MetaKms *kms);
MetaKms * meta_kms_new (MetaBackend *backend,
MetaKmsFlags flags,
GError **error);
#endif /* META_KMS_H */