130 lines
3.9 KiB
C
130 lines
3.9 KiB
C
/* $NetBSD: ppbus_1284.h,v 1.8 2009/04/05 09:56:16 cegger Exp $ */
|
|
|
|
/*-
|
|
* 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: src/sys/dev/ppbus/ppb_1284.h,v 1.7 2000/01/14 08:03:14 nsouch Exp
|
|
*
|
|
*/
|
|
#ifndef __PPBUS_1284_H
|
|
#define __PPBUS_1284_H
|
|
|
|
#include <sys/device.h> /* for device_t */
|
|
|
|
/*
|
|
* 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 PPBUS_REQUEST_ID 0x1
|
|
#define PPBUS_USE_RLE 0x2
|
|
#define PPBUS_EXTENSIBILITY_LINK 0x4
|
|
|
|
/* ieee1284 errors */
|
|
#define PPBUS_NO_ERROR 0
|
|
#define PPBUS_MODE_UNSUPPORTED 1 /* mode not supported by peripheral */
|
|
#define PPBUS_NOT_IEEE1284 2 /* not an IEEE1284 compliant periph. */
|
|
#define PPBUS_TIMEOUT 3 /* timeout */
|
|
#define PPBUS_INVALID_MODE 4 /* current mode is incorrect */
|
|
|
|
/* ieee1284 host side states */
|
|
#define PPBUS_ERROR 0
|
|
#define PPBUS_FORWARD_IDLE 1
|
|
#define PPBUS_NEGOTIATION 2
|
|
#define PPBUS_SETUP 3
|
|
#define PPBUS_ECP_FORWARD_IDLE 4
|
|
#define PPBUS_FWD_TO_REVERSE 5
|
|
#define PPBUS_REVERSE_IDLE 6
|
|
#define PPBUS_REVERSE_TRANSFER 7
|
|
#define PPBUS_REVERSE_TO_FWD 8
|
|
#define PPBUS_EPP_IDLE 9
|
|
#define PPBUS_TERMINATION 10
|
|
|
|
/* peripheral side states */
|
|
#define PPBUS_PERIPHERAL_NEGOTIATION 11
|
|
#define PPBUS_PERIPHERAL_IDLE 12
|
|
#define PPBUS_PERIPHERAL_TRANSFER 13
|
|
#define PPBUS_PERIPHERAL_TERMINATION 14
|
|
|
|
/* Function prototypes */
|
|
|
|
/* Host functions */
|
|
int ppbus_1284_negotiate(device_t, int, int);
|
|
int ppbus_1284_terminate(device_t);
|
|
int ppbus_1284_read_id(device_t, int, char **, size_t *, size_t *);
|
|
int ppbus_1284_get_state(device_t);
|
|
int ppbus_1284_set_state(device_t, int state);
|
|
|
|
/* Peripheral functions */
|
|
int ppbus_peripheral_terminate(device_t, int);
|
|
int ppbus_peripheral_negotiate(device_t, int, int);
|
|
int byte_peripheral_write(device_t, char *, int, int *);
|
|
|
|
#endif /* __PPBUS_1284_H */
|