Use common declaration of keyboard_scan_interrupt()

Code cleanup: declare keyboard_scan_interrupt() once, not per board;
the implementation is common anyway.

No functional changes; just renaming.

BUG=none
BRANCH=none
TEST=build daisy,snow,spring,mccrosskey

Change-Id: I1e33cbe2c868bc47b641d36d26f07c3b5a7ba3c7
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/45874
Reviewed-by: Bill Richardson <wfrichar@chromium.org>

1 files changed, 29 insertions, 7 deletions

diff --git a/include/keyboard_scan.h b/include/keyboard_scan.h
index 8bdbd6905c..54e7259c21 100644
--- a/include/keyboard_scan.h
+++ b/include/keyboard_scan.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
+/* Copyright (c) 2013 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.
  */
@@ -9,8 +9,11 @@
 #define __CROS_EC_KEYBOARD_SCAN_H
 
 #include "common.h"
+#include "gpio.h"
 
-/* Initializes the module. */
+/**
+ * Initializes the module.
+ */
 void keyboard_scan_init(void);
 
 /* Key held down at keyboard-controlled reset boot time. */
@@ -21,7 +24,7 @@ enum boot_key {
 	BOOT_KEY_OTHER = -1,  /* None of the above */
 };
 
-/*
+/**
  * Return the key held down at boot time in addition to the keyboard-controlled
  * reset keys.  Returns BOOT_KEY_OTHER if none of the keys specifically checked
  * was pressed, or reset was not caused by a keyboard-controlled reset, or if
@@ -29,16 +32,35 @@ enum boot_key {
  */
 enum boot_key keyboard_scan_get_boot_key(void);
 
-/* Return non-zero if recovery key was pressed at boot. */
+/**
+ * Return non-zero if recovery key was pressed at boot.
+ */
 int keyboard_scan_recovery_pressed(void);
 
-/* Clear any saved keyboard state (empty FIFO, etc) */
+/**
+ * Clear any saved keyboard state (empty FIFO, etc).
+ */
 void keyboard_clear_state(void);
 
-/* Enables/disables keyboard matrix scan. */
+/**
+ * Enables/disables keyboard matrix scan.
+ */
 void keyboard_enable_scanning(int enable);
 
-/* Sends KEY_BATTERY keystroke */
+/**
+ * Sends KEY_BATTERY keystroke.
+ */
 void keyboard_send_battery_key(void);
 
+#ifdef CONFIG_TASK_KEYSCAN
+
+/**
+ * Keyboard scan GPIO interrupt.
+ */
+void keyboard_scan_interrupt(enum gpio_signal signal);
+
+#else
+#define keyboard_scan_interrupt NULL
+#endif
+
 #endif  /* __CROS_EC_KEYBOARD_SCAN_H */