ppb_1284.h revision 42475
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 1.3 1998/09/13 18:26:26 nsouch 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 0x0 70#define NIBBLE_1284_REQUEST_ID 0x4 71#define BYTE_1284_NORMAL 0x1 72#define BYTE_1284_REQUEST_ID 0x5 73#define ECP_1284_NORMAL 0x10 74#define ECP_1284_REQUEST_ID 0x14 75#define ECP_1284_RLE 0x30 76#define ECP_1284_RLE_REQUEST_ID 0x34 77#define EPP_1284_NORMAL 0x40 78#define EXT_LINK_1284_NORMAL 0x80 79 80/* ieee1284 mode options */ 81#define PPB_REQUEST_ID 0x1 82#define PPB_USE_RLE 0x2 83#define PPB_EXTENSIBILITY_LINK 0x4 84 85/* ieee1284 errors */ 86#define PPB_NO_ERROR 0 87#define PPB_MODE_UNSUPPORTED 1 /* mode not supported by peripheral */ 88#define PPB_NOT_IEEE1284 2 /* not an IEEE1284 compliant periph. */ 89#define PPB_TIMEOUT 3 /* timeout */ 90#define PPB_INVALID_MODE 4 /* current mode is incorrect */ 91 92/* ieee1284 host side states */ 93#define PPB_ERROR 0 94#define PPB_FORWARD_IDLE 1 95#define PPB_NEGOCIATION 2 96#define PPB_SETUP 3 97#define PPB_ECP_FORWARD_IDLE 4 98#define PPB_FWD_TO_REVERSE 5 99#define PPB_REVERSE_IDLE 6 100#define PPB_REVERSE_TRANSFER 7 101#define PPB_REVERSE_TO_FWD 8 102#define PPB_EPP_IDLE 9 103#define PPB_TERMINATION 10 104 105/* peripheral side states */ 106#define PPB_PERIPHERAL_NEGOCIATION 11 107#define PPB_PERIPHERAL_IDLE 12 108#define PPB_PERIPHERAL_TRANSFER 13 109#define PPB_PERIPHERAL_TERMINATION 14 110 111extern int nibble_1284_inbyte(struct ppb_device *, char *); 112extern int byte_1284_inbyte(struct ppb_device *, char *); 113extern int spp_1284_read(struct ppb_device *, int, char *, int, int *); 114 115extern int ppb_1284_negociate(struct ppb_device *, int, int); 116extern int ppb_1284_terminate(struct ppb_device *); 117extern int ppb_1284_read_id(struct ppb_device *, int, char *, int, int *); 118extern int ppb_1284_read(struct ppb_device *, int, char *, int, int *); 119 120extern int ppb_peripheral_terminate(struct ppb_device *, int); 121extern int ppb_peripheral_negociate(struct ppb_device *, int, int); 122extern int byte_peripheral_write(struct ppb_device *, char *, int, int *); 123 124#endif 125