77e960bf17
as a real device whose registers and buffers are available through mmap(2), which makes further development of the driver considerably less painful.
49 lines
2.2 KiB
C
49 lines
2.2 KiB
C
/* $NetBSD: ascvar.h,v 1.2 1997/02/11 07:47:37 scottr Exp $ */
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/*
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* Copyright (c) 1995 Allen Briggs. 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Allen Briggs.
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* 4. 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 OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define ASCUNIT(d) ((d) & 0x7)
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struct asc_softc {
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struct device sc_dev;
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bus_space_tag_t sc_tag;
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bus_space_handle_t sc_handle;
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int sc_open;
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int sc_ringing;
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};
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int ascopen __P((dev_t dev, int flag, int mode, struct proc *p));
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int ascclose __P((dev_t dev, int flag, int mode, struct proc *p));
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int ascread __P((dev_t, struct uio *, int));
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int ascwrite __P((dev_t, struct uio *, int));
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int ascioctl __P((dev_t, int, caddr_t, int, struct proc *p));
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int ascpoll __P((dev_t dev, int events, struct proc *p));
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int ascmmap __P((dev_t dev, int off, int prot));
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