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56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
/* $Id: at91twivar.h,v 1.2 2008/07/03 01:15:39 matt Exp $ */
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/* $NetBSD: at91twivar.h,v 1.2 2008/07/03 01:15:39 matt Exp $ */
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/*-
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* Copyright (c) 2007 Embedtronics Oy. All rights reserved.
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*
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* Based on arch/macppc/dev/ki2c.c,
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* Copyright (c) 2001 Tsubai Masanari. 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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _AT91TWIVAR_H_
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#define _AT91TWIVAR_H_ 1
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struct at91twi_softc {
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device_t sc_dev; /* generic device */
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bus_space_tag_t sc_iot; /* I/O space tag */
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bus_space_handle_t sc_ioh; /* I/O space handle */
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int sc_pid; /* peripheral id */
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struct i2c_controller sc_i2c; /* I2C device desc */
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kmutex_t sc_buslock; /* bus lock */
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void *sc_ih; /* interrupt handle */
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int sc_flags;
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#define I2C_BUSY 0x0001
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#define I2C_READING 0x0002
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#define I2C_ERROR 0x8000
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u_char *sc_data;
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int sc_resid;
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};
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#endif // !_AT91TWIVAR_H_
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