ACPI / hotplug: Add .fixup() callback to struct acpi_hotplug_context

[mirror_ubuntu-bionic-kernel.git] / include / acpi / acpi_bus.h

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 8256eb4ad0579be822efd37e22193fa4fdffefdb..007fe99e29f51cbdc886f34861c6c3cd13eb4d64 100644 (file)
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -136,6 +136,17 @@ struct acpi_scan_handler {
        struct acpi_hotplug_profile hotplug;
 };
 
+/*
+ * ACPI Hotplug Context
+ * --------------------
+ */
+
+struct acpi_hotplug_context {
+       struct acpi_device *self;
+       int (*event)(struct acpi_device *, u32);
+       void (*fixup)(struct acpi_device *);
+};
+
 /*
  * ACPI Driver
  * -----------
@@ -190,7 +201,9 @@ struct acpi_device_flags {
        u32 initialized:1;
        u32 visited:1;
        u32 no_hotplug:1;
-       u32 reserved:24;
+       u32 hotplug_notify:1;
+       u32 is_dock_station:1;
+       u32 reserved:22;
 };
 
 /* File System */
@@ -329,6 +342,7 @@ struct acpi_device {
        struct acpi_device_perf performance;
        struct acpi_device_dir dir;
        struct acpi_scan_handler *handler;
+       struct acpi_hotplug_context *hp;
        struct acpi_driver *driver;
        void *driver_data;
        struct device dev;
@@ -351,6 +365,17 @@ static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
        *((u32 *)&adev->status) = sta;
 }
 
+static inline void acpi_set_hp_context(struct acpi_device *adev,
+                                      struct acpi_hotplug_context *hp,
+                                      int (*event)(struct acpi_device *, u32),
+                                      void (*fixup)(struct acpi_device *))
+{
+       hp->self = adev;
+       hp->event = event;
+       hp->fixup = fixup;
+       adev->hp = hp;
+}
+
 /* acpi_device.dev.bus == &acpi_bus_type */
 extern struct bus_type acpi_bus_type;
 
@@ -381,6 +406,8 @@ extern int unregister_acpi_notifier(struct notifier_block *);
  */
 
 int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
+struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle);
+void acpi_bus_put_acpi_device(struct acpi_device *adev);
 acpi_status acpi_bus_get_status_handle(acpi_handle handle,
                                       unsigned long long *sta);
 int acpi_bus_get_status(struct acpi_device *device);
@@ -402,6 +429,8 @@ static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; }
 
 void acpi_scan_lock_acquire(void);
 void acpi_scan_lock_release(void);
+void acpi_lock_hp_context(void);
+void acpi_unlock_hp_context(void);
 int acpi_scan_add_handler(struct acpi_scan_handler *handler);
 int acpi_bus_register_driver(struct acpi_driver *driver);
 void acpi_bus_unregister_driver(struct acpi_driver *driver);