1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1997 Nicolas Souchu 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 * 30 */ 31#ifndef __1284_H 32#define __1284_H 33 34/* 35 * IEEE1284 signals 36 */ 37 38/* host driven signals */ 39 40#define nHostClk STROBE 41#define Write STROBE 42 43#define nHostBusy AUTOFEED 44#define nHostAck AUTOFEED 45#define DStrb AUTOFEED 46 47#define nReveseRequest nINIT 48 49#define nActive1284 SELECTIN 50#define AStrb SELECTIN 51 52/* peripheral driven signals */ 53 54#define nDataAvail nFAULT 55#define nPeriphRequest nFAULT 56 57#define Xflag SELECT 58 59#define AckDataReq PERROR 60#define nAckReverse PERROR 61 62#define nPtrBusy nBUSY 63#define nPeriphAck nBUSY 64#define Wait nBUSY 65 66#define PtrClk nACK 67#define PeriphClk nACK 68#define Intr nACK 69 70/* request mode values */ 71#define NIBBLE_1284_NORMAL 0x0 72#define NIBBLE_1284_REQUEST_ID 0x4 73#define BYTE_1284_NORMAL 0x1 74#define BYTE_1284_REQUEST_ID 0x5 75#define ECP_1284_NORMAL 0x10 76#define ECP_1284_REQUEST_ID 0x14 77#define ECP_1284_RLE 0x30 78#define ECP_1284_RLE_REQUEST_ID 0x34 79#define EPP_1284_NORMAL 0x40 80#define EXT_LINK_1284_NORMAL 0x80 81 82/* ieee1284 mode options */ 83#define PPB_REQUEST_ID 0x1 84#define PPB_USE_RLE 0x2 85#define PPB_EXTENSIBILITY_LINK 0x4 86 87/* ieee1284 errors */ 88#define PPB_NO_ERROR 0 89#define PPB_MODE_UNSUPPORTED 1 /* mode not supported by peripheral */ 90#define PPB_NOT_IEEE1284 2 /* not an IEEE1284 compliant periph. */ 91#define PPB_TIMEOUT 3 /* timeout */ 92#define PPB_INVALID_MODE 4 /* current mode is incorrect */ 93 94/* ieee1284 host side states */ 95#define PPB_ERROR 0 96#define PPB_FORWARD_IDLE 1 97#define PPB_NEGOCIATION 2 98#define PPB_SETUP 3 99#define PPB_ECP_FORWARD_IDLE 4 100#define PPB_FWD_TO_REVERSE 5 101#define PPB_REVERSE_IDLE 6 102#define PPB_REVERSE_TRANSFER 7 103#define PPB_REVERSE_TO_FWD 8 104#define PPB_EPP_IDLE 9 105#define PPB_TERMINATION 10 106 107/* peripheral side states */ 108#define PPB_PERIPHERAL_NEGOCIATION 11 109#define PPB_PERIPHERAL_IDLE 12 110#define PPB_PERIPHERAL_TRANSFER 13 111#define PPB_PERIPHERAL_TERMINATION 14 112 113extern int nibble_1284_inbyte(device_t, char *); 114extern int byte_1284_inbyte(device_t, char *); 115extern int spp_1284_read(device_t, int, char *, int, int *); 116 117extern int ppb_1284_negociate(device_t, int, int); 118extern int ppb_1284_terminate(device_t); 119extern int ppb_1284_read_id(device_t, int, char *, int, int *); 120extern int ppb_1284_read(device_t, int, char *, int, int *); 121extern int ppb_1284_get_state(device_t bus); 122extern int ppb_1284_set_state(device_t bus, int state); 123 124extern int ppb_peripheral_terminate(device_t, int); 125extern int ppb_peripheral_negociate(device_t, int, int); 126extern int byte_peripheral_write(device_t, char *, int, int *); 127 128#endif 129