diff options
| author | ChromeOS Developer <dparker@chromium.org> | 2014-01-10 14:15:34 -0800 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-02-03 22:30:39 +0000 |
| commit | c65f82a5b02cdecf5b62f71ef2e916795f808389 (patch) | |
| tree | 3e9a223b7e43cbf8b6ebc45828e22e422351e15a /include | |
| parent | bd4437ddedda7de706a6bc6c6d0548080bb968cb (diff) | |
| download | chrome-ec-c65f82a5b02cdecf5b62f71ef2e916795f808389.tar.gz | |
8042: Add interface for handling off-matrix button changes
BUG=chrome-os-partner:24370
BRANCH=tot
TEST=Power key and keyboard work normally.
Signed-off-by: Dave Parker <dparker@chromium.org>
Change-Id: I291ff384ae2fc3e074132330713f0b0c2cc36a76
Reviewed-on: https://chromium-review.googlesource.com/184543
Diffstat (limited to 'include')
| -rw-r--r-- | include/button.h | 24 | ||||
| -rw-r--r-- | include/keyboard_protocol.h | 10 |
2 files changed, 34 insertions, 0 deletions
diff --git a/include/button.h b/include/button.h new file mode 100644 index 0000000000..e8344b308f --- /dev/null +++ b/include/button.h @@ -0,0 +1,24 @@ +/* Copyright (c) 2014 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. + */ + +/* Button API for Chrome EC */ + +#ifndef __CROS_EC_BUTTON_H +#define __CROS_EC_BUTTON_H + +#include "common.h" +#include "gpio.h" + +#define BUTTON_FLAG_ACTIVE_HIGH (1 << 0) + +enum keyboard_button_type { + KEYBOARD_BUTTON_POWER = 0, + KEYBOARD_BUTTON_VOLUME_DOWN, + KEYBOARD_BUTTON_VOLUME_UP, + + KEYBOARD_BUTTON_COUNT +}; + +#endif /* __CROS_EC_BUTTON_H */ diff --git a/include/keyboard_protocol.h b/include/keyboard_protocol.h index 866c58807b..6fc0a06f7c 100644 --- a/include/keyboard_protocol.h +++ b/include/keyboard_protocol.h @@ -9,6 +9,7 @@ #define __CROS_EC_KEYBOARD_PROTOCOL_H #include "common.h" +#include "button.h" /* Routines common to all protocols */ @@ -17,6 +18,15 @@ */ void keyboard_clear_buffer(void); +/* + * Respond to button changes. Implemented by a host-specific + * handler. + * + * @param button The button that changed. + * @param is_pressed Whether the button is now pressed. + */ +void keyboard_update_button(enum keyboard_button_type button, int is_pressed); + /* Protocol-specific includes */ #ifdef CONFIG_KEYBOARD_PROTOCOL_8042 |