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if_qereg.h revision 1.7
      1 /*	$NetBSD: if_qereg.h,v 1.7 2003/08/07 16:31:15 agc Exp $ */
      2 /*
      3  * Copyright (c) 1988 Regents of the University of California.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * Digital Equipment Corp.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  *	@(#)if_qereg.h	7.3 (Berkeley) 6/28/90
     34  */
     35 
     36 /* @(#)if_qereg.h	1.2 (ULTRIX) 1/3/85 */
     37 
     38 /****************************************************************
     39  *								*
     40  *        Licensed from Digital Equipment Corporation 		*
     41  *                       Copyright (c) 				*
     42  *               Digital Equipment Corporation			*
     43  *                   Maynard, Massachusetts 			*
     44  *                         1985, 1986 				*
     45  *                    All rights reserved. 			*
     46  *								*
     47  *        The Information in this software is subject to change *
     48  *   without notice and should not be construed as a commitment *
     49  *   by  Digital  Equipment  Corporation.   Digital   makes  no *
     50  *   representations about the suitability of this software for *
     51  *   any purpose.  It is supplied "As Is" without expressed  or *
     52  *   implied  warranty. 					*
     53  *								*
     54  *        If the Regents of the University of California or its *
     55  *   licensees modify the software in a manner creating  	*
     56  *   derivative copyright rights, appropriate copyright  	*
     57  *   legends may be placed on  the derivative work in addition  *
     58  *   to that set forth above. 					*
     59  *								*
     60  ****************************************************************/
     61 /* ---------------------------------------------------------------------
     62  * Modification History
     63  *
     64  *  13 Feb. 84 -- rjl
     65  *
     66  *	Initial version of driver. derived from IL driver.
     67  *
     68  * ---------------------------------------------------------------------
     69  */
     70 
     71 /*
     72  * Digital Q-BUS to NI Adapter
     73  */
     74 #ifdef notdef
     75 struct qedevice {
     76 	u_short	qe_sta_addr[2]; 	/* Station address (actually 6 	*/
     77 	u_short	qe_rcvlist_lo; 		/* Receive list lo address 	*/
     78 	u_short	qe_rcvlist_hi; 		/* Receive list hi address 	*/
     79 	u_short	qe_xmtlist_lo;		/* Transmit list lo address 	*/
     80 	u_short	qe_xmtlist_hi;		/* Transmit list hi address 	*/
     81 	u_short	qe_vector;		/* Interrupt vector 		*/
     82 	u_short	qe_csr;			/* Command and Status Register 	*/
     83 };
     84 #endif
     85 
     86 /*
     87  * Register offsets in register space.
     88  */
     89 #define	QE_CSR_ADDR1	0
     90 #define	QE_CSR_ADDR2	2
     91 #define	QE_CSR_RCLL	4
     92 #define	QE_CSR_RCLH	6
     93 #define	QE_CSR_XMTL	8
     94 #define	QE_CSR_XMTH	10
     95 #define	QE_CSR_VECTOR	12
     96 #define	QE_CSR_CSR	14
     97 
     98 /*
     99  * Command and status bits (csr)
    100  */
    101 #define QE_RCV_ENABLE	0x0001		/* Receiver enable		*/
    102 #define QE_RESET	0x0002		/* Software reset		*/
    103 #define QE_NEX_MEM_INT	0x0004		/* Non existent mem interrupt	*/
    104 #define QE_LOAD_ROM	0x0008		/* Load boot/diag from rom	*/
    105 #define QE_XL_INVALID	0x0010		/* Transmit list invalid	*/
    106 #define QE_RL_INVALID	0x0020		/* Receive list invalid		*/
    107 #define QE_INT_ENABLE	0x0040		/* Interrupt enable		*/
    108 #define QE_XMIT_INT	0x0080		/* Transmit interrupt		*/
    109 #define QE_ILOOP 	0x0100		/* Internal loopback		*/
    110 #define QE_ELOOP	0x0200		/* External loopback		*/
    111 #define QE_STIM_ENABLE	0x0400		/* Sanity timer enable		*/
    112 #define QE_POWERUP	0x1000		/* Tranceiver power on		*/
    113 #define QE_CARRIER	0x2000		/* Carrier detect		*/
    114 #define QE_RCV_INT	0x8000		/* Receiver interrupt		*/
    115 
    116 /*
    117  * Transmit and receive ring discriptor ---------------------------
    118  *
    119  * The QNA uses the flag, status1 and the valid bit as a handshake/semiphore
    120  * mechinism.
    121  *
    122  * The flag word is written on ( bits 15,15 set to 1 ) when it reads the
    123  * descriptor. If the valid bit is set it considers the address to be valid.
    124  * When it uses the buffer pointed to by the valid address it sets status word
    125  * one.
    126  */
    127 struct qe_ring	{
    128 	u_short qe_flag;		/* Buffer utilization flags	*/
    129 	u_short qe_addr_hi;
    130 	u_short qe_addr_lo;		/* Low order bits of address	*/
    131 	short qe_buf_len;		/* Negative buffer length	*/
    132 	u_short qe_status1;		/* Status word one		*/
    133 	u_short qe_status2;		/* Status word two		*/
    134 };
    135 
    136 /*
    137  * High word address control bits.
    138  */
    139 #define	QE_VALID		0x8000
    140 #define	QE_CHAIN		0x4000
    141 #define	QE_EOMSG		0x2000
    142 #define	QE_SETUP		0x1000
    143 #define	QE_ODDEND		0x0080
    144 #define	QE_ODDBEGIN		0x0040
    145 
    146 /*
    147  * Status word definations (receive)
    148  *	word1
    149  */
    150 #define QE_OVF			0x0001	/* Receiver overflow		*/
    151 #define QE_CRCERR		0x0002	/* CRC error			*/
    152 #define QE_FRAME		0x0004	/* Framing alignment error	*/
    153 #define QE_SHORT		0x0008	/* Packet size < 10 bytes	*/
    154 #define QE_RBL_HI		0x0700	/* Hi bits of receive len	*/
    155 #define QE_RUNT			0x0800	/* Runt packet			*/
    156 #define QE_DISCARD		0x1000	/* Discard the packet		*/
    157 #define QE_ESETUP		0x2000	/* Looped back setup or eloop	*/
    158 #define QE_ERROR		0x4000	/* Receiver error		*/
    159 #define QE_LASTNOT		0x8000	/* Not the last in the packet	*/
    160 /*	word2								*/
    161 #define QE_RBL_LO		0x00ff	/* Low bits of receive len	*/
    162 
    163 /*
    164  * Status word definations (transmit)
    165  *	word1
    166  */
    167 #define QE_CCNT			0x00f0	/* Collision count this packet	*/
    168 #define QE_FAIL			0x0100	/* Heart beat check failure	*/
    169 #define QE_ABORT		0x0200	/* Transmission abort		*/
    170 #define QE_STE16		0x0400	/* Sanity timer default on	*/
    171 #define QE_NOCAR		0x0800	/* No carrier			*/
    172 #define QE_LOSS			0x1000	/* Loss of carrier while xmit	*/
    173 /*	word2								*/
    174 #define QE_TDR			0x3fff	/* Time domain reflectometry	*/
    175 
    176 /*
    177  * General constant definations
    178  */
    179 #define QEALLOC 		0	/* Allocate an mbuf		*/
    180 #define QENOALLOC		1	/* No mbuf allocation		*/
    181 #define QEDEALLOC		2	/* Release an mbuf chain	*/
    182 
    183 #define QE_NOTYET		0x8000	/* Descriptor not in use yet	*/
    184 #define QE_INUSE		0x4000	/* Descriptor being used by QNA	*/
    185 #define QE_MASK			0xc000	/* Lastnot/error/used mask	*/
    186 
    187 /*
    188  * Values for the length of the setup packet that control reception filter.
    189  */
    190 #define	QE_SETUPLEN		128	/* Size of setup packet		*/
    191 #define QE_ALLMULTI		1	/* Receive all multicasts	*/
    192 #define QE_PROMISC		2	/* Receive all packets		*/
    193