6fa8e691a3
of HDA bus. Handle that from two directions: - Add support for "striping" (using several SDO lines), if supported. - Account HDA bus utilization and return error on new stream allocation attempt if remaining bandwidth is unsifficient. Most of HDA controllers have one SDO line with 46Mbps output bandwidth. NVIDIA GF210 has 2 lines - 92Mbps. NVIDIA GF520 has 4 lines - 184Mbps! MFC after: 2 months Sponsored by: iXsystems, Inc.
116 lines
2.8 KiB
Objective-C
116 lines
2.8 KiB
Objective-C
# Copyright (c) 2012 Alexander Motin <mav@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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# without modification, immediately at the beginning of the file.
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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 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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# $FreeBSD$
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#include <sys/rman.h>
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INTERFACE hdac;
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METHOD struct mtx * get_mtx {
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device_t dev;
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device_t child;
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};
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METHOD uint32_t codec_command {
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device_t dev;
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device_t child;
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uint32_t verb;
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};
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METHOD int stream_alloc {
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device_t dev;
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device_t child;
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int dir;
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int format;
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int stripe;
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uint32_t **dmapos;
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};
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METHOD void stream_free {
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device_t dev;
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device_t child;
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int dir;
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int stream;
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};
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METHOD int stream_start {
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device_t dev;
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device_t child;
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int dir;
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int stream;
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bus_addr_t buf;
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int blksz;
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int blkcnt;
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};
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METHOD void stream_stop {
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device_t dev;
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device_t child;
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int dir;
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int stream;
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};
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METHOD void stream_reset {
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device_t dev;
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device_t child;
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int dir;
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int stream;
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};
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METHOD uint32_t stream_getptr {
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device_t dev;
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device_t child;
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int dir;
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int stream;
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};
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METHOD void stream_intr {
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device_t dev;
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int dir;
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int stream;
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};
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METHOD int unsol_alloc {
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device_t dev;
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device_t child;
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int wanted;
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};
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METHOD void unsol_free {
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device_t dev;
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device_t child;
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int tag;
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};
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METHOD void unsol_intr {
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device_t dev;
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uint32_t resp;
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};
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METHOD void pindump {
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device_t dev;
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};
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