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ppbus_1284.h revision 1.5.4.4
      1  1.5.4.4  skrll /* $NetBSD: ppbus_1284.h,v 1.5.4.4 2004/09/21 13:32:37 skrll Exp $ */
      2  1.5.4.2  skrll 
      3  1.5.4.2  skrll /*-
      4  1.5.4.2  skrll  * Copyright (c) 1997 Nicolas Souchu
      5  1.5.4.2  skrll  * All rights reserved.
      6  1.5.4.2  skrll  *
      7  1.5.4.2  skrll  * Redistribution and use in source and binary forms, with or without
      8  1.5.4.2  skrll  * modification, are permitted provided that the following conditions
      9  1.5.4.2  skrll  * are met:
     10  1.5.4.2  skrll  * 1. Redistributions of source code must retain the above copyright
     11  1.5.4.2  skrll  *    notice, this list of conditions and the following disclaimer.
     12  1.5.4.2  skrll  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.5.4.2  skrll  *    notice, this list of conditions and the following disclaimer in the
     14  1.5.4.2  skrll  *    documentation and/or other materials provided with the distribution.
     15  1.5.4.2  skrll  *
     16  1.5.4.2  skrll  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  1.5.4.2  skrll  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  1.5.4.2  skrll  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  1.5.4.2  skrll  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  1.5.4.2  skrll  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  1.5.4.2  skrll  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  1.5.4.2  skrll  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  1.5.4.2  skrll  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  1.5.4.2  skrll  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  1.5.4.2  skrll  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  1.5.4.2  skrll  * SUCH DAMAGE.
     27  1.5.4.2  skrll  *
     28  1.5.4.2  skrll  * FreeBSD: src/sys/dev/ppbus/ppb_1284.h,v 1.7 2000/01/14 08:03:14 nsouch Exp
     29  1.5.4.2  skrll  *
     30  1.5.4.2  skrll  */
     31  1.5.4.2  skrll #ifndef __PPBUS_1284_H
     32  1.5.4.2  skrll #define __PPBUS_1284_H
     33  1.5.4.2  skrll 
     34  1.5.4.2  skrll /*
     35  1.5.4.2  skrll  * IEEE1284 signals
     36  1.5.4.2  skrll  */
     37  1.5.4.2  skrll 
     38  1.5.4.2  skrll /* host driven signals */
     39  1.5.4.2  skrll 
     40  1.5.4.2  skrll #define nHostClk	STROBE
     41  1.5.4.2  skrll #define Write		STROBE
     42  1.5.4.2  skrll 
     43  1.5.4.2  skrll #define nHostBusy	AUTOFEED
     44  1.5.4.2  skrll #define nHostAck	AUTOFEED
     45  1.5.4.2  skrll #define DStrb		AUTOFEED
     46  1.5.4.2  skrll 
     47  1.5.4.2  skrll #define nReveseRequest	nINIT
     48  1.5.4.2  skrll 
     49  1.5.4.2  skrll #define nActive1284	SELECTIN
     50  1.5.4.2  skrll #define AStrb		SELECTIN
     51  1.5.4.2  skrll 
     52  1.5.4.2  skrll /* peripheral driven signals */
     53  1.5.4.2  skrll 
     54  1.5.4.2  skrll #define nDataAvail	nFAULT
     55  1.5.4.2  skrll #define nPeriphRequest	nFAULT
     56  1.5.4.2  skrll 
     57  1.5.4.2  skrll #define Xflag		SELECT
     58  1.5.4.2  skrll 
     59  1.5.4.2  skrll #define AckDataReq	PERROR
     60  1.5.4.2  skrll #define nAckReverse	PERROR
     61  1.5.4.2  skrll 
     62  1.5.4.2  skrll #define nPtrBusy	nBUSY
     63  1.5.4.2  skrll #define nPeriphAck	nBUSY
     64  1.5.4.2  skrll #define Wait		nBUSY
     65  1.5.4.2  skrll 
     66  1.5.4.2  skrll #define PtrClk		nACK
     67  1.5.4.2  skrll #define PeriphClk	nACK
     68  1.5.4.2  skrll #define Intr		nACK
     69  1.5.4.2  skrll 
     70  1.5.4.2  skrll /* request mode values */
     71  1.5.4.2  skrll #define NIBBLE_1284_NORMAL	0x0
     72  1.5.4.2  skrll #define NIBBLE_1284_REQUEST_ID	0x4
     73  1.5.4.2  skrll #define BYTE_1284_NORMAL	0x1
     74  1.5.4.2  skrll #define BYTE_1284_REQUEST_ID	0x5
     75  1.5.4.2  skrll #define ECP_1284_NORMAL		0x10
     76  1.5.4.2  skrll #define ECP_1284_REQUEST_ID	0x14
     77  1.5.4.2  skrll #define ECP_1284_RLE		0x30
     78  1.5.4.2  skrll #define ECP_1284_RLE_REQUEST_ID	0x34
     79  1.5.4.2  skrll #define EPP_1284_NORMAL		0x40
     80  1.5.4.2  skrll #define EXT_LINK_1284_NORMAL	0x80
     81  1.5.4.2  skrll 
     82  1.5.4.2  skrll /* ieee1284 mode options */
     83  1.5.4.2  skrll #define PPBUS_REQUEST_ID		0x1
     84  1.5.4.2  skrll #define PPBUS_USE_RLE		0x2
     85  1.5.4.2  skrll #define PPBUS_EXTENSIBILITY_LINK	0x4
     86  1.5.4.2  skrll 
     87  1.5.4.2  skrll /* ieee1284 errors */
     88  1.5.4.2  skrll #define PPBUS_NO_ERROR		0
     89  1.5.4.2  skrll #define PPBUS_MODE_UNSUPPORTED	1	/* mode not supported by peripheral */
     90  1.5.4.2  skrll #define PPBUS_NOT_IEEE1284	2	/* not an IEEE1284 compliant periph. */
     91  1.5.4.2  skrll #define PPBUS_TIMEOUT		3	/* timeout */
     92  1.5.4.2  skrll #define PPBUS_INVALID_MODE	4	/* current mode is incorrect */
     93  1.5.4.2  skrll 
     94  1.5.4.2  skrll /* ieee1284 host side states */
     95  1.5.4.2  skrll #define PPBUS_ERROR			0
     96  1.5.4.2  skrll #define PPBUS_FORWARD_IDLE		1
     97  1.5.4.2  skrll #define PPBUS_NEGOTIATION			2
     98  1.5.4.2  skrll #define PPBUS_SETUP			3
     99  1.5.4.2  skrll #define PPBUS_ECP_FORWARD_IDLE		4
    100  1.5.4.2  skrll #define PPBUS_FWD_TO_REVERSE		5
    101  1.5.4.2  skrll #define PPBUS_REVERSE_IDLE		6
    102  1.5.4.2  skrll #define PPBUS_REVERSE_TRANSFER		7
    103  1.5.4.2  skrll #define PPBUS_REVERSE_TO_FWD		8
    104  1.5.4.2  skrll #define PPBUS_EPP_IDLE			9
    105  1.5.4.2  skrll #define PPBUS_TERMINATION			10
    106  1.5.4.2  skrll 
    107  1.5.4.2  skrll /* peripheral side states */
    108  1.5.4.2  skrll #define PPBUS_PERIPHERAL_NEGOTIATION	11
    109  1.5.4.2  skrll #define PPBUS_PERIPHERAL_IDLE		12
    110  1.5.4.2  skrll #define PPBUS_PERIPHERAL_TRANSFER		13
    111  1.5.4.2  skrll #define PPBUS_PERIPHERAL_TERMINATION	14
    112  1.5.4.2  skrll 
    113  1.5.4.2  skrll /* Function prototypes */
    114  1.5.4.2  skrll 
    115  1.5.4.2  skrll /* Host functions */
    116  1.5.4.2  skrll int ppbus_1284_negotiate(struct device *, int, int);
    117  1.5.4.2  skrll int ppbus_1284_terminate(struct device *);
    118  1.5.4.2  skrll int ppbus_1284_read_id(struct device *, int, char **, size_t *, size_t *);
    119  1.5.4.2  skrll int ppbus_1284_get_state(struct device *);
    120  1.5.4.2  skrll int ppbus_1284_set_state(struct device *, int state);
    121  1.5.4.2  skrll 
    122  1.5.4.2  skrll /* Peripheral functions */
    123  1.5.4.2  skrll int ppbus_peripheral_terminate(struct device *, int);
    124  1.5.4.2  skrll int ppbus_peripheral_negotiate(struct device *, int, int);
    125  1.5.4.2  skrll int byte_peripheral_write(struct device *, char *, int, int *);
    126  1.5.4.2  skrll 
    127  1.5.4.2  skrll #endif /* __PPBUS_1284_H */
    128