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 * $FreeBSD: src/sys/dev/ppbus/ppb_1284.h,v 1.7 2000/01/14 08:03:14 nsouch Exp $ 27 * $DragonFly: src/sys/bus/ppbus/ppb_1284.h,v 1.2 2003/06/17 04:28:29 dillon Exp $ 28 * 29 */ 30 #ifndef __1284_H 31 #define __1284_H 32 33 /* 34 * IEEE1284 signals 35 */ 36 37 /* host driven signals */ 38 39 #define nHostClk STROBE 40 #define Write STROBE 41 42 #define nHostBusy AUTOFEED 43 #define nHostAck AUTOFEED 44 #define DStrb AUTOFEED 45 46 #define nReveseRequest nINIT 47 48 #define nActive1284 SELECTIN 49 #define AStrb SELECTIN 50 51 /* peripheral driven signals */ 52 53 #define nDataAvail nFAULT 54 #define nPeriphRequest nFAULT 55 56 #define Xflag SELECT 57 58 #define AckDataReq PERROR 59 #define nAckReverse PERROR 60 61 #define nPtrBusy nBUSY 62 #define nPeriphAck nBUSY 63 #define Wait nBUSY 64 65 #define PtrClk nACK 66 #define PeriphClk nACK 67 #define Intr nACK 68 69 /* request mode values */ 70 #define NIBBLE_1284_NORMAL 0x0 71 #define NIBBLE_1284_REQUEST_ID 0x4 72 #define BYTE_1284_NORMAL 0x1 73 #define BYTE_1284_REQUEST_ID 0x5 74 #define ECP_1284_NORMAL 0x10 75 #define ECP_1284_REQUEST_ID 0x14 76 #define ECP_1284_RLE 0x30 77 #define ECP_1284_RLE_REQUEST_ID 0x34 78 #define EPP_1284_NORMAL 0x40 79 #define EXT_LINK_1284_NORMAL 0x80 80 81 /* ieee1284 mode options */ 82 #define PPB_REQUEST_ID 0x1 83 #define PPB_USE_RLE 0x2 84 #define PPB_EXTENSIBILITY_LINK 0x4 85 86 /* ieee1284 errors */ 87 #define PPB_NO_ERROR 0 88 #define PPB_MODE_UNSUPPORTED 1 /* mode not supported by peripheral */ 89 #define PPB_NOT_IEEE1284 2 /* not an IEEE1284 compliant periph. */ 90 #define PPB_TIMEOUT 3 /* timeout */ 91 #define PPB_INVALID_MODE 4 /* current mode is incorrect */ 92 93 /* ieee1284 host side states */ 94 #define PPB_ERROR 0 95 #define PPB_FORWARD_IDLE 1 96 #define PPB_NEGOCIATION 2 97 #define PPB_SETUP 3 98 #define PPB_ECP_FORWARD_IDLE 4 99 #define PPB_FWD_TO_REVERSE 5 100 #define PPB_REVERSE_IDLE 6 101 #define PPB_REVERSE_TRANSFER 7 102 #define PPB_REVERSE_TO_FWD 8 103 #define PPB_EPP_IDLE 9 104 #define PPB_TERMINATION 10 105 106 /* peripheral side states */ 107 #define PPB_PERIPHERAL_NEGOCIATION 11 108 #define PPB_PERIPHERAL_IDLE 12 109 #define PPB_PERIPHERAL_TRANSFER 13 110 #define PPB_PERIPHERAL_TERMINATION 14 111 112 extern int nibble_1284_inbyte(device_t, char *); 113 extern int byte_1284_inbyte(device_t, char *); 114 extern int spp_1284_read(device_t, int, char *, int, int *); 115 116 extern int ppb_1284_negociate(device_t, int, int); 117 extern int ppb_1284_terminate(device_t); 118 extern int ppb_1284_read_id(device_t, int, char *, int, int *); 119 extern int ppb_1284_read(device_t, int, char *, int, int *); 120 extern int ppb_1284_get_state(device_t bus); 121 extern int ppb_1284_set_state(device_t bus, int state); 122 123 extern int ppb_peripheral_terminate(device_t, int); 124 extern int ppb_peripheral_negociate(device_t, int, int); 125 extern int byte_peripheral_write(device_t, char *, int, int *); 126 127 #endif 128