67 lines
2.4 KiB
C
67 lines
2.4 KiB
C
/* $NetBSD: motoi2cvar.h,v 1.4 2011/04/17 15:14:59 phx Exp $ */
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/*-
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* Copyright (c) 2007, 2010 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Matt Thomas.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN 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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#ifndef _DEV_I2C_MOTOI2CVAR_H_
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#define _DEV_I2C_MOTOI2CVAR_H_
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#include <dev/i2c/i2cvar.h>
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struct motoi2c_softc;
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typedef uint8_t (*motoi2c_iord_t)(struct motoi2c_softc *, bus_size_t);
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typedef void (*motoi2c_iowr_t)(struct motoi2c_softc *, bus_size_t, uint8_t);
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struct motoi2c_settings {
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uint8_t i2c_adr;
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uint8_t i2c_fdr;
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uint8_t i2c_dfsrr;
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};
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struct motoi2c_softc {
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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struct i2c_controller sc_i2c;
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kmutex_t sc_buslock;
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motoi2c_iord_t sc_iord;
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motoi2c_iowr_t sc_iowr;
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};
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#define MOTOI2C_ADR_DEFAULT (0x7e << 1)
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#define MOTOI2C_FDR_DEFAULT 0x31 /* 3072 */
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#define MOTOI2C_DFSRR_DEFAULT 0x10
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#ifdef _KERNEL
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void motoi2c_attach_common(device_t, struct motoi2c_softc *,
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const struct motoi2c_settings *);
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int motoi2c_intr(void *);
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#endif
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#endif /* !_DEV_I2C_MOTOI2CVAR_H_ */
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