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linux: Detect docked docking stations correctly

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Instead of counting the number of graphics outputs, check
all the devices the platform/dock_station subsystem that
export a "dock_station" type.

Based on patch by Armando Di Cianno <armando@goodship.net>

https://bugs.freedesktop.org/show_bug.cgi?id=36818
This commit is contained in:
Bastien Nocera 2012-02-15 17:50:00 +00:00
parent b8fe9902f3
commit a6e830cd65
1 changed files with 18 additions and 18 deletions
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36
src/linux/up-dock.c
View file

@ -46,22 +46,23 @@ G_DEFINE_TYPE (UpDock, up_dock, G_TYPE_OBJECT)
* up_dock_device_check: * up_dock_device_check:
**/ **/
static gboolean static gboolean
up_dock_device_check (GUdevDevice *d) up_dock_device_check (GUdevDevice *device)
{ {
const gchar *status; gint docked;
gboolean ret = FALSE; gboolean ret;
/* Is it a docking station? */
if (g_strcmp0 (g_udev_device_get_sysfs_attr (device, "dock_type"), "dock_station") != 0)
return FALSE;
/* Get the boolean state from the kernel */
if (g_udev_device_get_sysfs_attr (device, "docked") == NULL)
return FALSE;
docked = g_udev_device_get_sysfs_attr_as_int (device, "docked");
ret = (docked == 1);
g_debug ("dock_station %s is %s", g_udev_device_get_sysfs_path (device), ret ? "docked" : "undocked");
/* Get the boolean state from the kernel -- note that ideally
* the property value would be "1" or "true" but now it's
* set in stone as ABI. Urgh. */
status = g_udev_device_get_sysfs_attr (d, "status");
if (status == NULL)
goto out;
ret = (g_strcmp0 (status, "connected") == 0);
g_debug ("graphics device %s is %s",
g_udev_device_get_sysfs_path (d),
ret ? "on" : "off");
out:
return ret; return ret;
} }
@ -76,10 +77,9 @@ up_dock_refresh (UpDock *dock)
GUdevDevice *native; GUdevDevice *native;
guint count = 0; guint count = 0;
/* the metric we're using here is that a machine is docked when /* check to see if there are any docking stations, and if they are docked */
* there is more than one active output */
devices = g_udev_client_query_by_subsystem (dock->priv->gudev_client, devices = g_udev_client_query_by_subsystem (dock->priv->gudev_client,
"drm"); "platform/dock_station");
for (l = devices; l != NULL; l = l->next) { for (l = devices; l != NULL; l = l->next) {
native = l->data; native = l->data;
count += up_dock_device_check (native); count += up_dock_device_check (native);
@ -163,7 +163,7 @@ up_dock_uevent_signal_handler_cb (GUdevClient *client, const gchar *action,
static void static void
up_dock_init (UpDock *dock) up_dock_init (UpDock *dock)
{ {
const gchar *subsystems[] = { "drm", NULL}; const gchar *subsystems[] = { "platform/dock_station", NULL};
dock->priv = UP_DOCK_GET_PRIVATE (dock); dock->priv = UP_DOCK_GET_PRIVATE (dock);
dock->priv->gudev_client = g_udev_client_new (subsystems); dock->priv->gudev_client = g_udev_client_new (subsystems);
g_signal_connect (dock->priv->gudev_client, "uevent", g_signal_connect (dock->priv->gudev_client, "uevent",