FreeBSD/Linux Kernel Cross Reference
sys/dev/ppbus/ppbus_if.m

     #-
     # Copyright (c) 1999 Nicolas Souchu
     # 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.
    #
    # $FreeBSD$
    #
    
    #include <sys/bus.h>
    #include <dev/ppbus/ppbconf.h>
    
    INTERFACE ppbus;
    
    #
    # Do low level i/o operations
    #
    METHOD u_char io {
            device_t dev;
            int opcode;
            u_char *addr;
            int cnt;
            u_char byte;
    };
    
    #
    # Execution of a microsequence
    #
    METHOD int exec_microseq {
            device_t dev;
            struct ppb_microseq **ppb_microseq;
    };
    
    #
    # Reset EPP timeout
    #
    METHOD int reset_epp {
            device_t dev;
    }
    
    #
    # Set chipset mode
    #
    METHOD int setmode {
            device_t dev;
            int mode;
    }
    
    #
    # Synchronize ECP FIFO
    #
    METHOD int ecp_sync {
            device_t dev;
    }
    
    #
    # Do chipset dependent low level read
    #
    METHOD int read {
            device_t dev;
            char *buf;
            int len;
            int how;
    }
    
    #
    # Do chipset dependent low level write
    #
    METHOD int write {
            device_t dev;
            char *buf;
            int len;
            int how;
    }

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