The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sparc64/isa/isa_dma.c

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    1 /*-
    2  * Copyright (c) 2004 Pyun YongHyeon.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD$");
   30 
   31 #include <sys/param.h>
   32 #include <sys/systm.h>
   33 #include <sys/bus.h>
   34 
   35 #include <isa/isareg.h>
   36 #include <isa/isavar.h>
   37 
   38 /*
   39  * Glue code to load sound(4). Though fdc(4), ppc(4) don't work on
   40  * sparc64 yet, they may need this glue code too.
   41  */
   42 
   43 void
   44 isa_dmainit(int chan, u_int bouncebufsize)
   45 {
   46 
   47 }
   48 
   49 int
   50 isa_dma_acquire(int chan)
   51 {
   52         return (0);
   53 }
   54 
   55 void
   56 isa_dma_release(int chan)
   57 {
   58 
   59 }
   60 
   61 void
   62 isa_dmacascade(int chan)
   63 {
   64 
   65 }
   66 
   67 void
   68 isa_dmastart(int flags, caddr_t addr, u_int nbytes, int chan)
   69 {
   70 
   71 }
   72 
   73 void
   74 isa_dmadone(int flags, caddr_t addr, int nbytes, int chan)
   75 {
   76 
   77 }
   78 
   79 int
   80 isa_dmastatus(int chan)
   81 {
   82         return (0);
   83 }
   84 
   85 int
   86 isa_dmatc(int chan)
   87 {
   88         return (0);
   89 }
   90 
   91 int
   92 isa_dmastop(int chan)
   93 {
   94         return (0);
   95 }

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