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https://github.com/Telecominfraproject/OpenCellular.git
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87a071941b
Currently, the matrix keyboard protocol does not have support for handling non-matrixed keys. This commit adds support for buttons which do not appear in the keyboard matrix as well as switches. Additionally, the keyboard FIFO is now just a general MKBP events FIFO which MKBP events are free to use. Now, buttons and switches wil join the key matrix event. BUG=chrome-os-partner:54988 BUG=chrome-os-partner:54976 BUG=chromium:626863 BRANCH=None TEST=Flash kevin, and verify that keyboard is still functional. TEST=make -j buildall CQ-DEPEND=CL:358926 Change-Id: If4ada904cbd5d77823a0710d4671484b198c9d91 Signed-off-by: Aseda Aboagye <aaboagye@google.com> Reviewed-on: https://chromium-review.googlesource.com/358633 Commit-Ready: Aseda Aboagye <aaboagye@chromium.org> Tested-by: Aseda Aboagye <aaboagye@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* MKBP keyboard protocol
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*/
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#ifndef __CROS_EC_KEYBOARD_MKBP_H
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#define __CROS_EC_KEYBOARD_MKBP_H
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#include "common.h"
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#include "keyboard_config.h"
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/**
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* Add keyboard state into FIFO
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*
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* @return EC_SUCCESS if entry added, EC_ERROR_OVERFLOW if FIFO is full
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*/
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int keyboard_fifo_add(const uint8_t *buffp);
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/**
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* Add an element to the common MKBP FIFO.
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*
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* @param event_type The MKBP event type.
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* @param buffp Pointer to the event data to enqueue.
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* @return EC_SUCCESS if entry added, EC_ERROR_OVERFLOW if FIFO is full.
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*/
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int mkbp_fifo_add(uint8_t event_type, const uint8_t *buffp);
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/**
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* Clear the MKBP common FIFO.
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*/
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void mkbp_clear_fifo(void);
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/**
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* Send KEY_BATTERY keystroke.
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*/
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#ifdef CONFIG_KEYBOARD_PROTOCOL_MKBP
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void keyboard_send_battery_key(void);
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#else
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static inline void keyboard_send_battery_key(void) { }
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#endif
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/**
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* Update the state of the switches.
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*
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* @param sw The switch that changed.
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* @param state The state of the switch.
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*/
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void mkbp_update_switches(uint32_t sw, int state);
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#endif /* __CROS_EC_KEYBOARD_MKBP_H */
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