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/dev/ppbus/ppbus_if.m

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    1 #-
    2 # Copyright (c) 1999 Nicolas Souchu
    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 # $FreeBSD$
   27 #
   28 
   29 #include <sys/bus.h>
   30 #include <dev/ppbus/ppbconf.h>
   31 
   32 INTERFACE ppbus;
   33 
   34 #
   35 # Do low level i/o operations
   36 #
   37 METHOD u_char io {
   38         device_t dev;
   39         int opcode;
   40         u_char *addr;
   41         int cnt;
   42         u_char byte;
   43 };
   44 
   45 #
   46 # Execution of a microsequence
   47 #
   48 METHOD int exec_microseq {
   49         device_t dev;
   50         struct ppb_microseq **ppb_microseq;
   51 };
   52 
   53 #
   54 # Reset EPP timeout
   55 #
   56 METHOD int reset_epp {
   57         device_t dev;
   58 }
   59 
   60 #
   61 # Set chipset mode
   62 #
   63 METHOD int setmode {
   64         device_t dev;
   65         int mode;
   66 }
   67 
   68 #
   69 # Synchronize ECP FIFO
   70 #
   71 METHOD int ecp_sync {
   72         device_t dev;
   73 }
   74 
   75 #
   76 # Do chipset dependent low level read
   77 #
   78 METHOD int read {
   79         device_t dev;
   80         char *buf;
   81         int len;
   82         int how;
   83 }
   84 
   85 #
   86 # Do chipset dependent low level write
   87 #
   88 METHOD int write {
   89         device_t dev;
   90         char *buf;
   91         int len;
   92         int how;
   93 }

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