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72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/****************************************************************************
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*
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* Copyright (c) 2014 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file drv_io_expander.h
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*
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* IO expander device API
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*/
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#pragma once
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#include <stdint.h>
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#include <sys/ioctl.h>
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/*
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* ioctl() definitions
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*/
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#define _IOXIOCBASE (0x2800)
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#define _IOXIOC(_n) (_IOC(_IOXIOCBASE, _n))
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/** set a bitmask (non-blocking) */
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#define IOX_SET_MASK _IOXIOC(1)
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/** get a bitmask (blocking) */
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#define IOX_GET_MASK _IOXIOC(2)
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/** set device mode (non-blocking) */
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#define IOX_SET_MODE _IOXIOC(3)
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/** set constant values (non-blocking) */
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#define IOX_SET_VALUE _IOXIOC(4)
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/* ... to IOX_SET_VALUE + 8 */
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/* enum passed to RGBLED_SET_MODE ioctl()*/
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enum IOX_MODE {
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IOX_MODE_OFF,
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IOX_MODE_ON,
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IOX_MODE_TEST_OUT
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};
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