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 14 112 113 extern int nibble_1284_inbyte(device_t, char *); 114 extern int byte_1284_inbyte(device_t, char *); 115 extern int spp_1284_read(device_t, int, char *, int, int *); 116 117 extern int ppb_1284_negociate(device_t, int, int); 118 extern int ppb_1284_terminate(device_t); 119 extern int ppb_1284_read_id(device_t, int, char *, int, int *); 120 extern int ppb_1284_read(device_t, int, char *, int, int *); 121 extern int ppb_1284_get_state(device_t bus); 122 extern int ppb_1284_set_state(device_t bus, int state); 123 124 extern int ppb_peripheral_terminate(device_t, int); 125 extern int ppb_peripheral_negociate(device_t, int, int); 126 extern int byte_peripheral_write(device_t, char *, int, int *); 127 128 #endif 129