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.
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/* $NetBSD: haltwovar.h,v 1.8 2011/11/23 23:07:30 jmcneill Exp $ */
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/*
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* Copyright (c) 2003 Ilpo Ruotsalainen
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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. 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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* <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>>
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*/
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#ifndef _ARCH_SGIMIPS_HPC_HALTWOVAR_H_
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#define _ARCH_SGIMIPS_HPC_HALTWOVAR_H_
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/* XXX Quite arbitrary? XXX */
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#define HALTWO_MAX_DMASEGS 16
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/* Mixer indices */
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#define HALTWO_MASTER_VOL 0
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#define HALTWO_OUTPUT_CLASS 1
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struct haltwo_dmabuf {
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bus_dmamap_t dma_map;
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bus_dma_segment_t dma_segs[HALTWO_MAX_DMASEGS];
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int dma_segcount;
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size_t size;
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void *kern_addr;
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struct haltwo_dmabuf *next;
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};
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struct haltwo_codec {
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bus_dmamap_t dma_map;
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bus_dma_segment_t dma_seg;
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struct hpc_dma_desc *dma_descs;
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void (*intr)(void *);
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void *intr_arg;
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};
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struct haltwo_softc {
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device_t sc_dev;
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kmutex_t sc_lock;
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kmutex_t sc_intr_lock;
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bus_space_tag_t sc_st;
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bus_space_handle_t sc_dma_sh;
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bus_dma_tag_t sc_dma_tag;
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struct haltwo_dmabuf *sc_dma_bufs;
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struct haltwo_codec sc_dac;
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#if 0
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struct haltwo_codec sc_adc;
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#endif
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uint8_t sc_vol_left;
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uint8_t sc_vol_right;
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bus_space_handle_t sc_ctl_sh;
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bus_space_handle_t sc_aes_sh;
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bus_space_handle_t sc_vol_sh;
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bus_space_handle_t sc_syn_sh;
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};
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#endif
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