diff options
Diffstat (limited to 'src/backends/native/meta-udev.c')
| -rw-r--r-- | src/backends/native/meta-udev.c | 274 |
1 files changed, 0 insertions, 274 deletions
diff --git a/src/backends/native/meta-udev.c b/src/backends/native/meta-udev.c deleted file mode 100644 index 9fd84e98b..000000000 --- a/src/backends/native/meta-udev.c +++ /dev/null @@ -1,274 +0,0 @@ -/* - * 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. - * - */ - -#include "config.h" - -#include "backends/native/meta-udev.h" - -#include "backends/native/meta-backend-native.h" -#include "backends/native/meta-launcher.h" - -#define DRM_CARD_UDEV_DEVICE_TYPE "drm_minor" - -enum -{ - HOTPLUG, - DEVICE_ADDED, - DEVICE_REMOVED, - - N_SIGNALS -}; - -static guint signals[N_SIGNALS]; - -struct _MetaUdev -{ - GObject parent; - - MetaBackendNative *backend_native; - - GUdevClient *gudev_client; - - gulong uevent_handler_id; -}; - -G_DEFINE_TYPE (MetaUdev, meta_udev, G_TYPE_OBJECT) - -gboolean -meta_is_udev_device_platform_device (GUdevDevice *device) -{ - g_autoptr (GUdevDevice) platform_device = NULL; - - platform_device = g_udev_device_get_parent_with_subsystem (device, - "platform", - NULL); - return !!platform_device; -} - -gboolean -meta_is_udev_device_boot_vga (GUdevDevice *device) -{ - g_autoptr (GUdevDevice) pci_device = NULL; - - pci_device = g_udev_device_get_parent_with_subsystem (device, "pci", NULL); - if (!pci_device) - return FALSE; - - return g_udev_device_get_sysfs_attr_as_int (pci_device, "boot_vga") == 1; -} - -static gboolean -meta_has_udev_device_tag (GUdevDevice *device, - const char *tag) -{ - const char * const * tags; - g_autoptr (GUdevDevice) platform_device = NULL; - - tags = g_udev_device_get_tags (device); - if (tags && g_strv_contains (tags, tag)) - return TRUE; - - platform_device = g_udev_device_get_parent_with_subsystem (device, - "platform", - NULL); - - if (platform_device) - return meta_has_udev_device_tag (platform_device, tag); - else - return FALSE; -} - -gboolean -meta_is_udev_device_disable_modifiers (GUdevDevice *device) -{ - return meta_has_udev_device_tag (device, - "mutter-device-disable-kms-modifiers"); -} - -gboolean -meta_is_udev_device_ignore (GUdevDevice *device) -{ - return meta_has_udev_device_tag (device, "mutter-device-ignore"); -} - -gboolean -meta_is_udev_device_preferred_primary (GUdevDevice *device) -{ - const char * const * tags; - - tags = g_udev_device_get_tags (device); - if (!tags) - return FALSE; - - return g_strv_contains (tags, "mutter-device-preferred-primary"); -} - -gboolean -meta_udev_is_drm_device (MetaUdev *udev, - GUdevDevice *device) -{ - const char *seat_id; - const char *device_type; - const char *device_seat; - - /* Filter out devices that are not character device, like card0-VGA-1. */ - if (g_udev_device_get_device_type (device) != G_UDEV_DEVICE_TYPE_CHAR) - return FALSE; - - device_type = g_udev_device_get_property (device, "DEVTYPE"); - if (g_strcmp0 (device_type, DRM_CARD_UDEV_DEVICE_TYPE) != 0) - return FALSE; - - device_seat = g_udev_device_get_property (device, "ID_SEAT"); - if (!device_seat) - { - /* When ID_SEAT is not set, it means seat0. */ - device_seat = "seat0"; - } - - /* Skip devices that do not belong to our seat. */ - seat_id = meta_backend_native_get_seat_id (udev->backend_native); - if (g_strcmp0 (seat_id, device_seat)) - return FALSE; - - return TRUE; -} - -GList * -meta_udev_list_drm_devices (MetaUdev *udev, - GError **error) -{ - g_autoptr (GUdevEnumerator) enumerator = NULL; - GList *devices; - GList *l; - - enumerator = g_udev_enumerator_new (udev->gudev_client); - - g_udev_enumerator_add_match_name (enumerator, "card*"); - g_udev_enumerator_add_match_tag (enumerator, "seat"); - - /* - * We need to explicitly match the subsystem for now. - * https://bugzilla.gnome.org/show_bug.cgi?id=773224 - */ - g_udev_enumerator_add_match_subsystem (enumerator, "drm"); - - devices = g_udev_enumerator_execute (enumerator); - if (!devices) - return NULL; - - for (l = devices; l;) - { - GUdevDevice *device = l->data; - GList *l_next = l->next; - - if (!meta_udev_is_drm_device (udev, device)) - { - g_object_unref (device); - devices = g_list_delete_link (devices, l); - } - - l = l_next; - } - - return devices; -} - -static void -on_uevent (GUdevClient *client, - const char *action, - GUdevDevice *device, - gpointer user_data) -{ - MetaUdev *udev = META_UDEV (user_data); - - if (!g_udev_device_get_device_file (device)) - return; - - if (g_str_equal (action, "add")) - g_signal_emit (udev, signals[DEVICE_ADDED], 0, device); - else if (g_str_equal (action, "remove")) - g_signal_emit (udev, signals[DEVICE_REMOVED], 0, device); - - if (g_udev_device_get_property_as_boolean (device, "HOTPLUG")) - g_signal_emit (udev, signals[HOTPLUG], 0); -} - -MetaUdev * -meta_udev_new (MetaBackendNative *backend_native) -{ - MetaUdev *udev; - - udev = g_object_new (META_TYPE_UDEV, NULL); - udev->backend_native = backend_native; - - return udev; -} - -static void -meta_udev_finalize (GObject *object) -{ - MetaUdev *udev = META_UDEV (object); - - g_clear_signal_handler (&udev->uevent_handler_id, udev->gudev_client); - g_clear_object (&udev->gudev_client); - - G_OBJECT_CLASS (meta_udev_parent_class)->finalize (object); -} - -static void -meta_udev_init (MetaUdev *udev) -{ - const char *subsystems[] = { "drm", NULL }; - - udev->gudev_client = g_udev_client_new (subsystems); - udev->uevent_handler_id = g_signal_connect (udev->gudev_client, - "uevent", - G_CALLBACK (on_uevent), udev); -} - -static void -meta_udev_class_init (MetaUdevClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS (klass); - - object_class->finalize = meta_udev_finalize; - - signals[HOTPLUG] = - g_signal_new ("hotplug", - G_TYPE_FROM_CLASS (object_class), - G_SIGNAL_RUN_LAST, - 0, NULL, NULL, NULL, - G_TYPE_NONE, 0); - signals[DEVICE_ADDED] = - g_signal_new ("device-added", - G_TYPE_FROM_CLASS (object_class), - G_SIGNAL_RUN_LAST, - 0, NULL, NULL, NULL, - G_TYPE_NONE, 1, - G_UDEV_TYPE_DEVICE); - signals[DEVICE_REMOVED] = - g_signal_new ("device-removed", - G_TYPE_FROM_CLASS (object_class), - G_SIGNAL_RUN_LAST, - 0, NULL, NULL, NULL, - G_TYPE_NONE, 1, - G_UDEV_TYPE_DEVICE); -} |