e10dbcfa2b
Revert the revert. Naturally, I considered OpenBSD and FreeBSD when I fixed the incorrect use of the spl*() interface. The change I made is _required_ for both NetBSD _and_ OpenBSD, or the code won't even COMPILE except on i386, and it is acceptable on FreeBSD. Your revert and mod rebroke it on OpenBSD and tangled things up on NetBSD. It made no difference on FreeBSD. In particular, there are 2,895 uses of splx() within the FreeBSD kernel, and only a mere 21, that's "twenty one" uses of intrmask_t, and those are almost exclusively in the guts of the interrupt implementation, _not_ in the _use_ of the exported spl*() functions. It's perfectly OK to `int s = spltty()' in a portable driver in FreeBSD. For that matter, FreeBSD (-current at least) does not even *use* spl*() any more and stubs them all out with inlines that do _nothing_ except return 0, making intrmask_t vs int _even less_ important there than it already was. I think it's great that you want to start hacking on the kernel, but do note that this is certainly the most simple of the kernel interfaces. It just gets worse from here. Be careful out there!
72 lines
2.9 KiB
C
72 lines
2.9 KiB
C
/* $NetBSD: bktr_os.h,v 1.5 2001/03/16 19:32:35 ross Exp $ */
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/* FreeBSD: src/sys/dev/bktr/bktr_os.h,v 1.4 2000/04/16 07:56:58 roger Exp */
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/*
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* This is part of the Driver for Video Capture Cards (Frame grabbers)
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* and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
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* chipset.
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* Copyright Roger Hardiman and Amancio Hasty.
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*
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* bktr_os : This has all the Operating System dependant code.
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*
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*/
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/*
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* 1. Redistributions of source code must retain the
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* Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
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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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* 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 Amancio Hasty and
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* Roger Hardiman
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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
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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/******************************/
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/* *** Memory Allocation *** */
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/******************************/
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#if (defined(__FreeBSD__) || defined(__bsdi__))
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vm_offset_t get_bktr_mem( int unit, unsigned size );
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#endif
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#if defined(__NetBSD__)
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vaddr_t get_bktr_mem(bktr_ptr_t, bus_dmamap_t *, unsigned size);
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void free_bktr_mem(bktr_ptr_t, bus_dmamap_t, vaddr_t);
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#endif
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#if defined(__OpenBSD__)
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vm_offset_t get_bktr_mem(bktr_ptr_t, bus_dmamap_t *, unsigned size);
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void free_bktr_mem(bktr_ptr_t, bus_dmamap_t, vm_offset_t);
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#endif
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/************************************/
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/* *** Interrupt Enable/Disable *** */
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/************************************/
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#define DECLARE_INTR_MASK(s) int s
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#define DISABLE_INTR(s) s = spltty()
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#define ENABLE_INTR(s) splx(s)
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