055f1f33eb
to make the naming style consistent with each other Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
140 lines
4.5 KiB
C
140 lines
4.5 KiB
C
/****************************************************************************
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* libs/libc/misc/lib_kbdencode.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <assert.h>
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#include <nuttx/streams.h>
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#include <nuttx/ascii.h>
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#include <nuttx/input/kbd_codec.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Name: kbd_encode
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*
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* Description:
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* Encode one special special sequence command into the output stream.
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*
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* Input Parameters:
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* keycode - The command to be added to the output stream.
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* stream - An instance of lib_outstream_s to do the low-level put
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* operation.
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* terminator - Escape sequence terminating character.
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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static void kbd_encode(uint8_t keycode, FAR struct lib_outstream_s *stream,
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uint8_t terminator)
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{
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lib_stream_putc(stream, ASCII_ESC);
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lib_stream_putc(stream, '[');
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lib_stream_putc(stream, (int)keycode);
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lib_stream_putc(stream, terminator);
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: kbd_release
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*
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* Description:
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* Encode the release of a normal key.
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*
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* Input Parameters:
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* ch - The character associated with the key that was releared.
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* stream - An instance of lib_outstream_s to do the low-level put
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* operation.
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void kbd_release(uint8_t ch, FAR struct lib_outstream_s *stream)
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{
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kbd_encode(ch, stream, ('a' + KBD_RELEASE));
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}
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/****************************************************************************
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* Name: kbd_specpress
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*
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* Description:
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* Denotes a special key press event. Put one special keyboard command
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* into the output stream.
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*
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* Input Parameters:
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* keycode - The command to be added to the output stream.
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* stream - An instance of lib_outstream_s to do the low-level put
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* operation.
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void kbd_specpress(enum kbd_keycode_e keycode,
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FAR struct lib_outstream_s *stream)
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{
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DEBUGASSERT(stream &&
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keycode >= KEYCODE_FWDDEL &&
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keycode <= LAST_KEYCODE);
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kbd_encode((uint8_t)keycode, stream, ('a' + KBD_SPECPRESS));
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}
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/****************************************************************************
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* Name: kbd_specrel
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*
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* Description:
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* Denotes a special key release event. Put one special keyboard
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* command into the output stream.
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*
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* Input Parameters:
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* keycode - The command to be added to the output stream.
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* stream - An instance of lib_outstream_s to do the low-level put
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* operation.
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void kbd_specrel(enum kbd_keycode_e keycode,
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FAR struct lib_outstream_s *stream)
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{
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DEBUGASSERT(stream &&
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keycode >= KEYCODE_FWDDEL &&
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keycode <= LAST_KEYCODE);
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kbd_encode((uint8_t)keycode, stream, ('a' + KBD_SPECREL));
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}
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