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authorPaul Mackerras <paulus@samba.org>2007-05-10 21:08:37 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-10 21:08:37 +1000
commit2ecf042ef530dd0943e41d84b6344f507941af3e (patch)
tree73100361dd74e3f80f14c7c81ba4675948983f44 /include/asm-arm/arch-omap/gpio-switch.h
parent32a56ebb24f23da1bbaf24292acf85b6c04526ab (diff)
parentde5603748af8bf7deac403e6ba92887f8d18e812 (diff)
Merge branch 'linux-2.6'
Diffstat (limited to 'include/asm-arm/arch-omap/gpio-switch.h')
-rw-r--r--include/asm-arm/arch-omap/gpio-switch.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/include/asm-arm/arch-omap/gpio-switch.h b/include/asm-arm/arch-omap/gpio-switch.h
new file mode 100644
index 00000000000..10da0e07c0c
--- /dev/null
+++ b/include/asm-arm/arch-omap/gpio-switch.h
@@ -0,0 +1,54 @@
+/*
+ * GPIO switch definitions
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARCH_OMAP_GPIO_SWITCH_H
+#define __ASM_ARCH_OMAP_GPIO_SWITCH_H
+
+#include <linux/types.h>
+
+/* Cover:
+ * high -> closed
+ * low -> open
+ * Connection:
+ * high -> connected
+ * low -> disconnected
+ * Activity:
+ * high -> active
+ * low -> inactive
+ *
+ */
+#define OMAP_GPIO_SWITCH_TYPE_COVER 0x0000
+#define OMAP_GPIO_SWITCH_TYPE_CONNECTION 0x0001
+#define OMAP_GPIO_SWITCH_TYPE_ACTIVITY 0x0002
+#define OMAP_GPIO_SWITCH_FLAG_INVERTED 0x0001
+#define OMAP_GPIO_SWITCH_FLAG_OUTPUT 0x0002
+
+struct omap_gpio_switch {
+ const char *name;
+ s16 gpio;
+ unsigned flags:4;
+ unsigned type:4;
+
+ /* Time in ms to debounce when transitioning from
+ * inactive state to active state. */
+ u16 debounce_rising;
+ /* Same for transition from active to inactive state. */
+ u16 debounce_falling;
+
+ /* notify board-specific code about state changes */
+ void (* notify)(void *data, int state);
+ void *notify_data;
+};
+
+/* Call at init time only */
+extern void omap_register_gpio_switches(const struct omap_gpio_switch *tbl,
+ int count);
+
+#endif