Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

[powerpc.git] / include / asm-arm / arch-omap / gpio-switch.h

diff --git a/include/asm-arm/arch-omap/gpio-switch.h b/include/asm-arm/arch-omap/gpio-switch.h
new file mode 100644 (file)
index 0000000..10da0e0
--- /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