X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Flinux%2Fnotifier.h;h=0c40cc0b4a362034fbe444a929ab1d9a0ecdb749;hb=a89b7717a8c9be41a4856134b60a4d7a66df13f6;hp=576f2bb34cc80dcc84271c874fc47e0bf16cc50e;hpb=49c13b51a15f1ba9f6d47e26e4a3886c4f3931e2;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index 576f2bb34cc..0c40cc0b4a3 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -157,6 +157,19 @@ extern int __srcu_notifier_call_chain(struct srcu_notifier_head *nh,
  */
 #define NOTIFY_STOP		(NOTIFY_OK|NOTIFY_STOP_MASK)
 
+/* Encapsulate (negative) errno value (in particular, NOTIFY_BAD <=> EPERM). */
+static inline int notifier_from_errno(int err)
+{
+	return NOTIFY_STOP_MASK | (NOTIFY_OK - err);
+}
+
+/* Restore (negative) errno value from notify return value. */
+static inline int notifier_to_errno(int ret)
+{
+	ret &= ~NOTIFY_STOP_MASK;
+	return ret > NOTIFY_OK ? NOTIFY_OK - ret : 0;
+}
+
 /*
  *	Declared notifiers so far. I can imagine quite a few more chains
  *	over time (eg laptop power reset chains, reboot chain (to clean 
@@ -212,5 +225,28 @@ extern int __srcu_notifier_call_chain(struct srcu_notifier_head *nh,
 #define CPU_DEAD_FROZEN		(CPU_DEAD | CPU_TASKS_FROZEN)
 #define CPU_DYING_FROZEN	(CPU_DYING | CPU_TASKS_FROZEN)
 
+/* Hibernation and suspend events */
+#define PM_HIBERNATION_PREPARE	0x0001 /* Going to hibernate */
+#define PM_POST_HIBERNATION	0x0002 /* Hibernation finished */
+#define PM_SUSPEND_PREPARE	0x0003 /* Going to suspend the system */
+#define PM_POST_SUSPEND		0x0004 /* Suspend finished */
+
+/* Console keyboard events.
+ * Note: KBD_KEYCODE is always sent before KBD_UNBOUND_KEYCODE, KBD_UNICODE and
+ * KBD_KEYSYM. */
+#define KBD_KEYCODE		0x0001 /* Keyboard keycode, called before any other */
+#define KBD_UNBOUND_KEYCODE	0x0002 /* Keyboard keycode which is not bound to any other */
+#define KBD_UNICODE		0x0003 /* Keyboard unicode */
+#define KBD_KEYSYM		0x0004 /* Keyboard keysym */
+#define KBD_POST_KEYSYM		0x0005 /* Called after keyboard keysym interpretation */
+
+extern struct blocking_notifier_head reboot_notifier_list;
+
+/* Virtual Terminal events. */
+#define VT_ALLOCATE		0x0001 /* Console got allocated */
+#define VT_DEALLOCATE		0x0002 /* Console will be deallocated */
+#define VT_WRITE		0x0003 /* A char got output */
+#define VT_UPDATE		0x0004 /* A bigger update occurred */
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_NOTIFIER_H */