d4280a0fab
clients. These are helful when making certain drivers work on both Linux and FreeBSD without changing the code flow too much. Reviewed by: kib, wlosh MFC after: 1 month
120 lines
2.3 KiB
Objective-C
120 lines
2.3 KiB
Objective-C
#-
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# Copyright (c) 1998 Nicolas Souchu
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# 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 AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, 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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# $FreeBSD$
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#
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#include <sys/bus.h>
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INTERFACE iicbb;
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#
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# Default implementation of optional methods
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#
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CODE {
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static int
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null_pre_xfer(device_t dev)
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{
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return 0;
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}
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static void
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null_post_xfer(device_t dev)
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{
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}
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static int
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null_callback(device_t dev, int index, caddr_t data)
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{
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return 0;
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}
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};
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#
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# iicbus callback
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#
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METHOD int callback {
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device_t dev;
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int index;
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caddr_t data;
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} DEFAULT null_callback;
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#
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# Prepare device for I2C transfer
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#
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METHOD int pre_xfer {
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device_t dev;
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} DEFAULT null_pre_xfer;
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#
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# Cleanup device after I2C transfer
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#
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METHOD void post_xfer {
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device_t dev;
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} DEFAULT null_post_xfer;
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#
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# Set I2C bus data line
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#
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METHOD void setsda {
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device_t dev;
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int val;
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};
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#
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# Set I2C bus clock line
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#
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METHOD void setscl {
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device_t dev;
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int val;
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};
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#
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# Get I2C bus data line
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#
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#
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METHOD int getsda {
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device_t dev;
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};
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#
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# Get I2C bus clock line
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#
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#
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METHOD int getscl {
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device_t dev;
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};
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#
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# Reset interface
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#
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METHOD int reset {
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device_t dev;
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u_char speed;
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u_char addr;
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u_char *oldaddr;
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};
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