mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-26 11:47:31 +00:00
f259d7eed5
then invoke the children. As the value of HISR can be read only once, pass the HISR to the children via struct csa_bridgeinfo, stored in the ivars of them. - Clear the contents of serial FIFO upon stopping the DMA for playing. This may eliminate buzz on playing. Experimental.
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/*-
|
|
* Copyright (c) 1999 Seigo Tanimura
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* These are the function codes assigned to the children of
|
|
* sound cards.
|
|
*/
|
|
enum {
|
|
SCF_PCM,
|
|
SCF_MIDI,
|
|
SCF_SYNTH,
|
|
};
|
|
|
|
/*
|
|
* This is the device information struct, used by
|
|
* a bridge device to pass the device function code
|
|
* to the children.
|
|
*/
|
|
struct sndcard_func {
|
|
int func; /* The function code. */
|
|
void *varinfo; /* Bridge-specific information. */
|
|
};
|