8a962f23f2
the original ad-audiomp branch notes: Add MP locking to the audio drivers. Making the audio drivers MP safe is necessary before efforts can be made to make the VM system MP safe. The are two locks per device instance, an ISR lock and a character device lock. The ISR lock replaces calls to splaudio()/splx(), and will be held across calls to device methods which were called at splaudio() before (e.g. trigger_output). The character device lock is held across calls to nearly all of the methods, excluding some only used for initialization, e.g. get_locks. Welcome to 5.99.57.
123 lines
5.1 KiB
C
123 lines
5.1 KiB
C
/* $NetBSD: ad1848var.h,v 1.44 2011/11/23 23:07:32 jmcneill Exp $ */
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/*-
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* Copyright (c) 1999 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 Ken Hornstein and John Kohl.
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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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/*
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* Copyright (c) 1994 John Brezak
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* Copyright (c) 1991-1993 Regents of the University of California.
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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 the Computer Systems
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* Engineering Group at Lawrence Berkeley Laboratory.
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* 4. Neither the name of the University nor of the Laboratory may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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*/
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#define AD1848_NPORT 4
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#include <dev/ic/ad1848var.h>
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struct ad1848_isa_softc {
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struct ad1848_softc sc_ad1848; /* AD1848 device */
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void *sc_ih; /* interrupt vectoring */
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isa_chipset_tag_t sc_ic; /* ISA chipset info */
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char sc_playrun; /* running in continuous mode */
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char sc_recrun; /* running in continuous mode */
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int sc_irq; /* interrupt */
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int sc_playdrq; /* playback DMA */
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bus_size_t sc_play_maxsize; /* playback DMA size */
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int sc_recdrq; /* record/capture DMA */
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bus_size_t sc_rec_maxsize; /* record/capture DMA size */
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u_long sc_interrupts; /* number of interrupts taken */
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void (*sc_pintr)(void *); /* play DMA completion intr handler */
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void *sc_parg; /* arg for sc_pintr() */
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void (*sc_rintr)(void *); /* rec. DMA completion intr handler */
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void *sc_rarg; /* arg for sc_rintr() */
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/* Only used by gus XXX */
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int sc_iobase;
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#ifndef AUDIO_NO_POWER_CTL
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int (*powerctl)(void *, int);
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void *powerarg;
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#endif
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};
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#ifdef _KERNEL
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int ad1848_isa_mapprobe(struct ad1848_isa_softc *, int);
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int ad1848_isa_probe(struct ad1848_isa_softc *);
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void ad1848_isa_unmap(struct ad1848_isa_softc *);
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void ad1848_isa_attach(struct ad1848_isa_softc *);
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int ad1848_isa_open(void *, int);
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void ad1848_isa_close(void *);
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int ad1848_isa_trigger_output(void *, void *, void *, int,
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void (*)(void *), void *, const audio_params_t *);
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int ad1848_isa_trigger_input(void *, void *, void *, int,
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void (*)(void *), void *, const audio_params_t *);
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int ad1848_isa_halt_output(void *);
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int ad1848_isa_halt_input(void *);
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int ad1848_isa_intr(void *);
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void *ad1848_isa_malloc(void *, int, size_t);
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void ad1848_isa_free(void *, void *, size_t);
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size_t ad1848_isa_round_buffersize(void *, int, size_t);
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paddr_t ad1848_isa_mappage(void *, void *, off_t, int);
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int ad1848_isa_get_props(void *);
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#endif
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