Files
OpenCellular/include/keyboard_protocol.h
Nicolas Boichat ff9c5dd0d2 keyboard: Always call keyboard_state_changed
8042 and USB HID keyboard will both use that function. Let's just
make it a no-op in the MKBP case.

BRANCH=none
BUG=chrome-os-partner:59083
TEST=make buildall -j

Change-Id: Iaee1bf2c6edff3db28f3db89fc292f9d1064483b
Reviewed-on: https://chromium-review.googlesource.com/411602
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2016-11-17 07:08:25 -08:00

53 lines
1.3 KiB
C

/* 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.
*
* Keyboard protocol interface
*/
#ifndef __CROS_EC_KEYBOARD_PROTOCOL_H
#define __CROS_EC_KEYBOARD_PROTOCOL_H
#include "common.h"
#include "button.h"
/* Routines common to all protocols */
/**
* Clear the keyboard buffer to host.
*/
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
#include "keyboard_8042.h"
#endif
#ifdef CONFIG_KEYBOARD_PROTOCOL_MKBP
#include "keyboard_mkbp.h"
/* MKBP protocol takes the whole keyboard matrix, and does not care about
* individual key presses.
*/
static inline void keyboard_state_changed(int row, int col, int is_pressed) {}
#else
/**
* Called by keyboard scan code once any key state change (after de-bounce),
*
* This function will look up matrix table and convert scancode host.
*/
void keyboard_state_changed(int row, int col, int is_pressed);
#endif
#endif /* __CROS_EC_KEYBOARD_PROTOCOL_H */