Rename power_button module to switch

Since it handles not just power button, but also lid switch, AC
detect, and other switches.

No functional changes; just renaming.

BUG=chrome-os-partner:15579
BRANCH=none
TEST=boot system, power on/off with power button

Change-Id: I51628a52293f7207715f5f6bf368a08fe6c3dbce
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/36821

1 files changed, 43 insertions, 0 deletions

diff --git a/include/switch.h b/include/switch.h
new file mode 100644
index 0000000000..9c4dfef498
--- /dev/null
+++ b/include/switch.h
@@ -0,0 +1,43 @@
+/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* Switch module for Chrome EC */
+
+#ifndef __CROS_EC_SWITCH_H
+#define __CROS_EC_SWITCH_H
+
+#include "common.h"
+#include "gpio.h"
+
+/**
+ * Interrupt handler for switch inputs.
+ *
+ * @param signal	Signal which triggered the interrupt.
+ */
+void switch_interrupt(enum gpio_signal signal);
+
+/**
+ * Switch task.
+ */
+void switch_task(void);
+
+/**
+ * Return non-zero if AC power is present.
+ */
+int switch_get_ac_present(void);
+
+/**
+ * Return non-zero if lid is open.
+ *
+ * Uses the debounced lid state, not the raw signal from the GPIO.
+ */
+int switch_get_lid_open(void);
+
+/**
+ * Return non-zero if write protect signal is asserted.
+ */
+int switch_get_write_protect(void);
+
+#endif  /* __CROS_EC_SWITCH_H */