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Diffstat (limited to 'include/linux/signal.h')
-rw-r--r--include/linux/signal.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 5dd5f02c5c5f..ea9eff16c4b7 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -18,6 +18,19 @@
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x04000000
+/*
+ * As above, these correspond to the IORESOURCE_IRQ_* defines in
+ * linux/ioport.h to select the interrupt line behaviour. When
+ * requesting an interrupt without specifying a SA_TRIGGER, the
+ * setting should be assumed to be "as already configured", which
+ * may be as per machine or firmware initialisation.
+ */
+#define SA_TRIGGER_LOW 0x00000008
+#define SA_TRIGGER_HIGH 0x00000004
+#define SA_TRIGGER_FALLING 0x00000002
+#define SA_TRIGGER_RISING 0x00000001
+#define SA_TRIGGER_MASK (SA_TRIGGER_HIGH|SA_TRIGGER_LOW|\
+ SA_TRIGGER_RISING|SA_TRIGGER_FALLING)
/*
* Real Time signals may be queued.