1/* $NetBSD: ppbus_1284.h,v 1.7 2008/04/15 15:02:29 cegger Exp $ */ 2 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: src/sys/dev/ppbus/ppb_1284.h,v 1.7 2000/01/14 08:03:14 nsouch Exp 29 * 30 */ 31#ifndef __PPBUS_1284_H 32#define __PPBUS_1284_H 33 34#include <sys/device.h> /* for device_t */ 35 36/* 37 * IEEE1284 signals 38 */ 39 40/* host driven signals */ 41 42#define nHostClk STROBE 43#define Write STROBE 44 45#define nHostBusy AUTOFEED 46#define nHostAck AUTOFEED 47#define DStrb AUTOFEED 48 49#define nReveseRequest nINIT 50 51#define nActive1284 SELECTIN 52#define AStrb SELECTIN 53 54/* peripheral driven signals */ 55 56#define nDataAvail nFAULT 57#define nPeriphRequest nFAULT 58 59#define Xflag SELECT 60 61#define AckDataReq PERROR 62#define nAckReverse PERROR 63 64#define nPtrBusy nBUSY 65#define nPeriphAck nBUSY 66#define Wait nBUSY 67 68#define PtrClk nACK 69#define PeriphClk nACK 70#define Intr nACK 71 72/* request mode values */ 73#define NIBBLE_1284_NORMAL 0x0 74#define NIBBLE_1284_REQUEST_ID 0x4 75#define BYTE_1284_NORMAL 0x1 76#define BYTE_1284_REQUEST_ID 0x5 77#define ECP_1284_NORMAL 0x10 78#define ECP_1284_REQUEST_ID 0x14 79#define ECP_1284_RLE 0x30 80#define ECP_1284_RLE_REQUEST_ID 0x34 81#define EPP_1284_NORMAL 0x40 82#define EXT_LINK_1284_NORMAL 0x80 83 84/* ieee1284 mode options */ 85#define PPBUS_REQUEST_ID 0x1 86#define PPBUS_USE_RLE 0x2 87#define PPBUS_EXTENSIBILITY_LINK 0x4 88 89/* ieee1284 errors */ 90#define PPBUS_NO_ERROR 0 91#define PPBUS_MODE_UNSUPPORTED 1 /* mode not supported by peripheral */ 92#define PPBUS_NOT_IEEE1284 2 /* not an IEEE1284 compliant periph. */ 93#define PPBUS_TIMEOUT 3 /* timeout */ 94#define PPBUS_INVALID_MODE 4 /* current mode is incorrect */ 95 96/* ieee1284 host side states */ 97#define PPBUS_ERROR 0 98#define PPBUS_FORWARD_IDLE 1 99#define PPBUS_NEGOTIATION 2 100#define PPBUS_SETUP 3 101#define PPBUS_ECP_FORWARD_IDLE 4 102#define PPBUS_FWD_TO_REVERSE 5 103#define PPBUS_REVERSE_IDLE 6 104#define PPBUS_REVERSE_TRANSFER 7 105#define PPBUS_REVERSE_TO_FWD 8 106#define PPBUS_EPP_IDLE 9 107#define PPBUS_TERMINATION 10 108 109/* peripheral side states */ 110#define PPBUS_PERIPHERAL_NEGOTIATION 11 111#define PPBUS_PERIPHERAL_IDLE 12 112#define PPBUS_PERIPHERAL_TRANSFER 13 113#define PPBUS_PERIPHERAL_TERMINATION 14 114 115/* Function prototypes */ 116 117/* Host functions */ 118int ppbus_1284_negotiate(device_t, int, int); 119int ppbus_1284_terminate(device_t); 120int ppbus_1284_read_id(device_t, int, char **, size_t *, size_t *); 121int ppbus_1284_get_state(device_t); 122int ppbus_1284_set_state(device_t, int state); 123 124/* Peripheral functions */ 125int ppbus_peripheral_terminate(device_t, int); 126int ppbus_peripheral_negotiate(device_t, int, int); 127int byte_peripheral_write(device_t, char *, int, int *); 128 129#endif /* __PPBUS_1284_H */ 130