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/*-
* Copyright (c) 1997 Nicolas Souchu
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef __1284_H
#define __1284_H
/*
* IEEE1284 signals
*/
/* host driven signals */
#define nHostClk STROBE
#define Write STROBE
#define nHostBusy AUTOFEED
#define nHostAck AUTOFEED
#define DStrb AUTOFEED
#define nReveseRequest nINIT
#define nActive1284 SELECTIN
#define AStrb SELECTIN
/* peripheral driven signals */
#define nDataAvail nFAULT
#define nPeriphRequest nFAULT
#define Xflag SELECT
#define AckDataReq PERROR
#define nAckReverse PERROR
#define nPtrBusy nBUSY
#define nPeriphAck nBUSY
#define Wait nBUSY
#define PtrClk nACK
#define PeriphClk nACK
#define Intr nACK
/* request mode values */
#define NIBBLE_1284_NORMAL 0x0
#define NIBBLE_1284_REQUEST_ID 0x4
#define BYTE_1284_NORMAL 0x1
#define BYTE_1284_REQUEST_ID 0x5
#define ECP_1284_NORMAL 0x10
#define ECP_1284_REQUEST_ID 0x14
#define ECP_1284_RLE 0x30
#define ECP_1284_RLE_REQUEST_ID 0x34
#define EPP_1284_NORMAL 0x40
#define EXT_LINK_1284_NORMAL 0x80
/* ieee1284 mode options */
#define PPB_REQUEST_ID 0x1
#define PPB_USE_RLE 0x2
#define PPB_EXTENSIBILITY_LINK 0x4
/* ieee1284 errors */
#define PPB_NO_ERROR 0
#define PPB_MODE_UNSUPPORTED 1 /* mode not supported by peripheral */
#define PPB_NOT_IEEE1284 2 /* not an IEEE1284 compliant periph. */
#define PPB_TIMEOUT 3 /* timeout */
#define PPB_INVALID_MODE 4 /* current mode is incorrect */
/* ieee1284 host side states */
#define PPB_ERROR 0
#define PPB_FORWARD_IDLE 1
#define PPB_NEGOCIATION 2
#define PPB_SETUP 3
#define PPB_ECP_FORWARD_IDLE 4
#define PPB_FWD_TO_REVERSE 5
#define PPB_REVERSE_IDLE 6
#define PPB_REVERSE_TRANSFER 7
#define PPB_REVERSE_TO_FWD 8
#define PPB_EPP_IDLE 9
#define PPB_TERMINATION 10
/* peripheral side states */
#define PPB_PERIPHERAL_NEGOCIATION 11
#define PPB_PERIPHERAL_IDLE 12
#define PPB_PERIPHERAL_TRANSFER 13
#define PPB_PERIPHERAL_TERMINATION 14
extern int nibble_1284_inbyte(device_t, char *);
extern int byte_1284_inbyte(device_t, char *);
extern int spp_1284_read(device_t, int, char *, int, int *);
extern int ppb_1284_negociate(device_t, int, int);
extern int ppb_1284_terminate(device_t);
extern int ppb_1284_read_id(device_t, int, char *, int, int *);
extern int ppb_1284_read(device_t, int, char *, int, int *);
extern int ppb_1284_get_state(device_t bus);
extern int ppb_1284_set_state(device_t bus, int state);
extern int ppb_peripheral_terminate(device_t, int);
extern int ppb_peripheral_negociate(device_t, int, int);
extern int byte_peripheral_write(device_t, char *, int, int *);
#endif
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