1 /*- 2 * Copyright (c) 1997 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 * $Id: ppb_1284.h,v 1.2 1998/08/03 19:14:31 msmith Exp $ 27 * 28 */ 29 #ifndef __1284_H 30 #define __1284_H 31 32 /* 33 * IEEE1284 signals 34 */ 35 36 /* host driven signals */ 37 38 #define nHostClk STROBE 39 #define Write STROBE 40 41 #define nHostBusy AUTOFEED 42 #define nHostAck AUTOFEED 43 #define DStrb AUTOFEED 44 45 #define nReveseRequest nINIT 46 47 #define nActive1284 SELECTIN 48 #define AStrb SELECTIN 49 50 /* peripheral driven signals */ 51 52 #define nDataAvail nFAULT 53 #define nPeriphRequest nFAULT 54 55 #define Xflag SELECT 56 57 #define AckDataReq PERROR 58 #define nAckReverse PERROR 59 60 #define nPtrBusy nBUSY 61 #define nPeriphAck nBUSY 62 #define Wait nBUSY 63 64 #define PtrClk nACK 65 #define PeriphClk nACK 66 #define Intr nACK 67 68 /* request mode values */ 69 #define NIBBLE_1284_NORMAL 0 70 #define NIBBLE_1284_REQUEST_ID 4 71 72 /* how to terminate */ 73 #define VALID_STATE 0 74 #define IMMEDIATE 1 75 76 extern int do_1284_wait(struct ppb_device *, char, char); 77 78 extern int nibble_1284_inbyte(struct ppb_device *, char *); 79 extern void nibble_1284_sync(struct ppb_device *); 80 extern int nibble_1284_mode(struct ppb_device *, int); 81 82 extern int ppb_1284_negociate(struct ppb_device *, int); 83 extern int ppb_1284_terminate(struct ppb_device *, int how); 84 85 #endif 86