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authorShaohua Li <shaohua.li@intel.com>2008-08-28 10:06:16 +0800
committerLen Brown <len.brown@intel.com>2008-09-23 23:23:00 -0400
commit1253f7aabfebc51446dbec5c8895c5c8846dfe06 (patch)
treedd365b884581931ab01473307d519d277cbffaa4 /drivers/acpi/dock.c
parentf730ae1838635a02aa60834762c61566911d004c (diff)
downloadlinux-1253f7aabfebc51446dbec5c8895c5c8846dfe06.tar.bz2
dock: introduce .uevent for devices in dock, eg libata
dock's uevent reported itself, not ata. It might be difficult to find an ata device just according to a dock. This patch introduces docking ops for each device in a dock. when docking, dock driver can send device specific uevent. This should help dock station too (not just bay) Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/dock.c')
-rw-r--r--drivers/acpi/dock.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index f19f643fb362..ac7dfefcb50b 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -75,7 +75,7 @@ struct dock_dependent_device {
struct list_head list;
struct list_head hotplug_list;
acpi_handle handle;
- acpi_notify_handler handler;
+ struct acpi_dock_ops *ops;
void *context;
};
@@ -385,8 +385,8 @@ static void hotplug_dock_devices(struct dock_station *ds, u32 event)
* First call driver specific hotplug functions
*/
list_for_each_entry(dd, &ds->hotplug_devices, hotplug_list) {
- if (dd->handler)
- dd->handler(dd->handle, event, dd->context);
+ if (dd->ops && dd->ops->handler)
+ dd->ops->handler(dd->handle, event, dd->context);
}
/*
@@ -409,6 +409,7 @@ static void dock_event(struct dock_station *ds, u32 event, int num)
struct device *dev = &ds->dock_device->dev;
char event_string[13];
char *envp[] = { event_string, NULL };
+ struct dock_dependent_device *dd;
if (num == UNDOCK_EVENT)
sprintf(event_string, "EVENT=undock");
@@ -419,7 +420,14 @@ static void dock_event(struct dock_station *ds, u32 event, int num)
* Indicate that the status of the dock station has
* changed.
*/
- kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
+ if (num == DOCK_EVENT)
+ kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
+
+ list_for_each_entry(dd, &ds->hotplug_devices, hotplug_list)
+ if (dd->ops && dd->ops->uevent)
+ dd->ops->uevent(dd->handle, event, dd->context);
+ if (num != DOCK_EVENT)
+ kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
}
/**
@@ -588,7 +596,7 @@ EXPORT_SYMBOL_GPL(unregister_dock_notifier);
/**
* register_hotplug_dock_device - register a hotplug function
* @handle: the handle of the device
- * @handler: the acpi_notifier_handler to call after docking
+ * @ops: handlers to call after docking
* @context: device specific data
*
* If a driver would like to perform a hotplug operation after a dock
@@ -596,7 +604,7 @@ EXPORT_SYMBOL_GPL(unregister_dock_notifier);
* the dock driver after _DCK is executed.
*/
int
-register_hotplug_dock_device(acpi_handle handle, acpi_notify_handler handler,
+register_hotplug_dock_device(acpi_handle handle, struct acpi_dock_ops *ops,
void *context)
{
struct dock_dependent_device *dd;
@@ -612,7 +620,7 @@ register_hotplug_dock_device(acpi_handle handle, acpi_notify_handler handler,
list_for_each_entry(dock_station, &dock_stations, sibiling) {
dd = find_dock_dependent_device(dock_station, handle);
if (dd) {
- dd->handler = handler;
+ dd->ops = ops;
dd->context = context;
dock_add_hotplug_device(dock_station, dd);
return 0;