79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/****************************************************************************
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* apps/games/shift/shift_input_gesture.h
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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 <nuttx/sensors/apds9960.h>
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#include "shift_inputs.h"
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/****************************************************************************
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* Preprocessor Definitions
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****************************************************************************/
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#define APDS9960_DEVNAME "/dev/gest0"
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/****************************************************************************
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* dev_input_init
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****************************************************************************/
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int dev_input_init(FAR struct input_state_s *dev)
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{
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/* Open the gesture sensor APDS9960 */
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dev->fd_gest = open(APDS9960_DEVNAME, O_RDONLY | O_NONBLOCK);
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if (dev->fd_gest < 0)
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{
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int errcode = errno;
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printf("ERROR: Failed to open %s: %d\n", APDS9960_DEVNAME, errcode);
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return -ENODEV;
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}
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return OK;
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}
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/****************************************************************************
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* dev_read_input
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****************************************************************************/
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int dev_read_input(FAR struct input_state_s *dev)
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{
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int nbytes;
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uint8_t gest;
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nbytes = read(dev->fd_gest, &gest, sizeof(gest));
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if (nbytes == sizeof(gest))
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{
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dev->dir = gest;
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}
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else
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{
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dev->dir = DIR_NONE;
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return -EINVAL;
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}
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return OK;
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}
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