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Current File : //sys/dev/iicbus/iicbus_if.m

#-
# Copyright (c) 1998 Nicolas Souchu
# 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
#
# $FreeBSD: release/9.1.0/sys/dev/iicbus/iicbus_if.m 164901 2006-12-05 06:19:36Z imp $
#

#include <sys/bus.h>
#include <dev/iicbus/iic.h>

INTERFACE iicbus;

#
# Interpret interrupt
#
METHOD int intr {
	device_t dev;
	int event;
	char *buf;
};

#
# iicbus callback
#
METHOD int callback {
	device_t dev;
	int index;
	caddr_t data;
};

#
# Send REPEATED_START condition
#
METHOD int repeated_start {
	device_t dev;
	u_char slave;
	int timeout;
};

#
# Send START condition
#
METHOD int start {
	device_t dev;
	u_char slave;
	int timeout;
};

#
# Send STOP condition
#
METHOD int stop {
	device_t dev;
};

#
# Read from I2C bus
#
METHOD int read {
	device_t dev;
	char *buf;
	int len;
	int *bytes;
	int last;
	int delay;
};

#
# Write to the I2C bus
#
METHOD int write {
	device_t dev;
	const char *buf;
	int len;
	int *bytes;
	int timeout;
};

#
# Reset I2C bus
#
METHOD int reset {
	device_t dev;
	u_char speed;
	u_char addr;
	u_char *oldaddr;
};

#
# Generalized Read/Write interface
#
METHOD int transfer {
	device_t dev;
	struct iic_msg *msgs;
	uint32_t nmsgs;
};

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