0c3c54da63
uses the i8237 without trying to emulate the PC architecture move the register definitions for the i8237 chip into the central include file for the chip, except for the PC98 case which is magic. Add new isa_dmatc() function which tells us as cheaply as possible if the terminal count has been reached for a given channel.
97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
/*-
|
|
* Copyright (c) 2004 Pyun YongHyeon.
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <isa/isareg.h>
|
|
#include <isa/isavar.h>
|
|
|
|
/*
|
|
* Glue code to load sound(4). Though fdc(4), ppc(4) don't work on
|
|
* sparc64 yet, they may need this glue code too.
|
|
*/
|
|
|
|
int
|
|
isa_dma_init(int chan, u_int bouncebufsize, int flag)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
isa_dma_acquire(int chan)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
isa_dma_release(int chan)
|
|
{
|
|
|
|
}
|
|
|
|
void
|
|
isa_dmacascade(int chan)
|
|
{
|
|
|
|
}
|
|
|
|
void
|
|
isa_dmastart(int flags, caddr_t addr, u_int nbytes, int chan)
|
|
{
|
|
|
|
}
|
|
|
|
void
|
|
isa_dmadone(int flags, caddr_t addr, int nbytes, int chan)
|
|
{
|
|
|
|
}
|
|
|
|
int
|
|
isa_dmastatus(int chan)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
isa_dmatc(int chan)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
isa_dmastop(int chan)
|
|
{
|
|
return (0);
|
|
}
|