86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/*-
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* Copyright (c) 1997 Nicolas Souchu
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: ppb_1284.h,v 1.2 1998/08/03 19:14:31 msmith Exp $
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*
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*/
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#ifndef __1284_H
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#define __1284_H
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/*
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* IEEE1284 signals
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*/
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/* host driven signals */
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#define nHostClk STROBE
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#define Write STROBE
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#define nHostBusy AUTOFEED
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#define nHostAck AUTOFEED
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#define DStrb AUTOFEED
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#define nReveseRequest nINIT
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#define nActive1284 SELECTIN
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#define AStrb SELECTIN
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/* peripheral driven signals */
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#define nDataAvail nFAULT
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#define nPeriphRequest nFAULT
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#define Xflag SELECT
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#define AckDataReq PERROR
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#define nAckReverse PERROR
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#define nPtrBusy nBUSY
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#define nPeriphAck nBUSY
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#define Wait nBUSY
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#define PtrClk nACK
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#define PeriphClk nACK
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#define Intr nACK
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/* request mode values */
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#define NIBBLE_1284_NORMAL 0
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#define NIBBLE_1284_REQUEST_ID 4
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/* how to terminate */
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#define VALID_STATE 0
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#define IMMEDIATE 1
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extern int do_1284_wait(struct ppb_device *, char, char);
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extern int nibble_1284_inbyte(struct ppb_device *, char *);
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extern void nibble_1284_sync(struct ppb_device *);
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extern int nibble_1284_mode(struct ppb_device *, int);
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extern int ppb_1284_negociate(struct ppb_device *, int);
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extern int ppb_1284_terminate(struct ppb_device *, int how);
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#endif
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