7e3c742061
can be found at https://wiki.freebsd.org/SummerOfCode2016/HDAudioEmulationForBhyve This commit has evolved from the original work to include Capsicum integration. As part of that, it only opens the host audio devices once and leaves them open, instead of opening and closing them on each guest access. Thanks to Peter Grehan and Marcelo Araujo for their help in bringing the work forward and providing some of the final techncial push. Submitted by: Alex Teaca <iateaca@freebsd.org> Differential Revision: D7840, D12419
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/*-
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* Copyright (c) 2016 Alex Teaca <iateaca@FreeBSD.org>
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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 ``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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#ifndef _HDA_EMUL_H_
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#define _HDA_EMUL_H_
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/kernel.h>
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#include "hda_reg.h"
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/*
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* HDA Debug Log
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*/
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#define DEBUG_HDA 1
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#if DEBUG_HDA == 1
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extern FILE *dbg;
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#define DPRINTF(fmt, arg...) \
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do {fprintf(dbg, "%s-%d: " fmt, __func__, __LINE__, ##arg); \
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fflush(dbg); } while (0)
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#else
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#define DPRINTF(fmt, arg...)
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#endif
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#define HDA_FIFO_SIZE 0x100
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struct hda_softc;
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struct hda_codec_class;
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struct hda_codec_inst {
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uint8_t cad;
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struct hda_codec_class *codec;
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struct hda_softc *hda;
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struct hda_ops *hops;
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void *priv;
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};
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struct hda_codec_class {
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char *name;
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int (*init)(struct hda_codec_inst *hci, const char *play,
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const char *rec, const char *opts);
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int (*reset)(struct hda_codec_inst *hci);
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int (*command)(struct hda_codec_inst *hci, uint32_t cmd_data);
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int (*notify)(struct hda_codec_inst *hci, uint8_t run, uint8_t stream,
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uint8_t dir);
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};
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struct hda_ops {
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int (*signal)(struct hda_codec_inst *hci);
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int (*response)(struct hda_codec_inst *hci, uint32_t response,
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uint8_t unsol);
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int (*transfer)(struct hda_codec_inst *hci, uint8_t stream,
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uint8_t dir, void *buf, size_t count);
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};
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#define HDA_EMUL_SET(x) DATA_SET(hda_codec_class_set, x);
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#endif /* _HDA_EMUL_H_ */
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