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