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51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright 2008 by Nathan Whitehorn. 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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* 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 the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR 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;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _MACIO_MACGPIOVAR_H_
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#define _MACIO_MACGPIOVAR_H_
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/* relative offsets into gpio space */
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#define GPIO_EXTINT_BASE 0x08
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#define GPIO_BASE 0x1a
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#define GPIO_EXTINT_COUNT 0x12
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#define GPIO_COUNT 0x11
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#define GPIO_LEVELS_0 0x50
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#define GPIO_LEVELS_1 0x54
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/* gpio bit definitions */
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#define GPIO_DATA 0x01 /* GPIO data */
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#define GPIO_LEVEL_RO 0x02 /* read-only level on pin */
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#define GPIO_DDR_INPUT 0x00 /* use for input */
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#define GPIO_DDR_OUTPUT 0x04 /* use for output */
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uint8_t macgpio_read(device_t dev);
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void macgpio_write(device_t dev,uint8_t);
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#endif /* _MACIO_MACGPIOVAR_H_ */
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