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      1 /*	$NetBSD: if_qtreg.h,v 1.6 2021/12/20 17:12:41 rhialto Exp $	*/
      2 /*
      3  * Copyright (c) 1992 Steven M. Schultz
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  *
     28  *	@(#)if_qtreg.h  1.0 (GTE) 10/12/92
     29  */
     30 /*
     31  * Modification History
     32  *  26 Feb 93 -- sms
     33  *	Add defines for number of receive and transmit ring descriptors.
     34  *
     35  *  12 Oct 92 -- Steven M. Schultz (sms)
     36  *	Created from the DELQA-PLUS Addendum to the DELQA User's Guide.
     37 */
     38 
     39 #define QT_MAX_RCV	32
     40 #define QT_MAX_XMT	12
     41 
     42 /* Receive ring descriptor and bit/field definitions */
     43 
     44 	struct	qt_rring
     45 		{
     46 		short	rmd0;
     47 		short	rmd1;
     48 		short	rmd2;
     49 		short	rmd3;
     50 		short	rmd4;
     51 		short	rmd5;
     52 #ifdef pdp11
     53 		struct	qt_uba	*rhost0;
     54 		short	rhost1;
     55 #else
     56 		short	pad1, pad2;
     57 #endif
     58 		};
     59 
     60 #define	RMD0_ERR3	0x4000		/* Error summary. FRA|CRC|OFL|BUF */
     61 #define	RMD0_FRA	0x2000		/* Framing error */
     62 #define	RMD0_OFL	0x1000		/* Overflow error.  Oversized packet */
     63 #define	RMD0_CRC	0x0800		/* CRC error */
     64 #define	RMD0_BUF	0x0400		/* Internal device buffer error */
     65 #define	RMD0_STP	0x0200		/* Start of packet */
     66 #define	RMD0_ENP	0x0100		/* End of packet */
     67 
     68 #define	RMD1_MCNT	0x0fff		/* Message byte count */
     69 
     70 #define	RMD2_ERR4	0x8000		/* Error summary.  BBL|CER|MIS */
     71 #define	RMD2_BBL	0x4000		/* Babble error on transmit */
     72 #define	RMD2_CER	0x2000		/* Collision error on transmit */
     73 #define	RMD2_MIS	0x1000		/* Packet lost on receive */
     74 #define	RMD2_EOR	0x0800		/* End of receive ring */
     75 #define	RMD2_RON	0x0020		/* Receiver on */
     76 #define	RMD2_TON	0x0010		/* Transmitter on */
     77 
     78 #define	RMD3_OWN	0x8000		/* Ownership field. */
     79 
     80 #define	RMD4_LADR	0xfff8		/* Octabyte aligned low address bits */
     81 
     82 #define	RMD5_HADR	0x003f		/* High 6 bits of buffer address */
     83 
     84 #define	RMD0_BITS	"\010\016FRA\015OFL\014CRC\013BUF\012STP\011ENP"
     85 #define	RMD2_BITS	"\010\017BBL\014CER\013MIS\012EOR\06RON\05TON"
     86 
     87 /* Transmit ring descriptor and bit/field definitions */
     88 
     89 	struct	qt_tring
     90 		{
     91 		short	tmd0;
     92 		short	tmd1;
     93 		short	tmd2;
     94 		short	tmd3;
     95 		short	tmd4;
     96 		short	tmd5;
     97 #ifdef pdp11
     98 		struct	qt_uba	*thost0;
     99 		short	thost1;
    100 #else
    101 		short	pad1, pad2;
    102 #endif
    103 		};
    104 
    105 #define	TMD0_ERR1	0x4000		/* Error summary.  LCO|LCA|RTR */
    106 #define	TMD0_MOR	0x1000		/* More than one retry on transmit */
    107 #define	TMD0_ONE	0x0800		/* One retry on transmit */
    108 #define	TMD0_DEF	0x0400		/* Deferral during transmit */
    109 
    110 #define	TMD1_LCO	0x1000		/* Late collision on transmit */
    111 #define	TMD1_LCA	0x0800		/* Loss of carrier on transmit */
    112 #define	TMD1_RTR	0x0400		/* Retry error on transmit */
    113 #define	TMD1_TDR	0x03ff		/* Time Domain Reflectometry value */
    114 
    115 #define	TMD2_ERR2	0x8000		/* Error summary.  BBL|CER|MIS */
    116 #define	TMD2_BBL	0x4000		/* Babble error on transmit */
    117 #define	TMD2_CER	0x2000		/* Collision error on transmit */
    118 #define	TMD2_MIS	0x1000		/* Packet lost on receive */
    119 #define	TMD2_EOR	0x0800		/* Endof Receive ring reached */
    120 #define	TMD2_RON	0x0020		/* Receiver on */
    121 #define	TMD2_TON	0x0010		/* Transmitter on */
    122 
    123 #define	TMD3_OWN	0x8000		/* Ownership field */
    124 #define	TMD3_FOT	0x4000		/* First of two flag */
    125 #define	TMD3_BCT	0x0fff		/* Byte count */
    126 
    127 #define	TMD4_LADR	0xfff8		/* Octabyte aligned low address bits */
    128 
    129 #define	TMD5_HADR	0x003f		/* High 6 bits of buffer address */
    130 
    131 #define	TMD1_BITS	"\010\015LCO\014LCA\013RTR"
    132 #define	TMD2_BITS	"\010\017BBL\016CER\015MIS\014EOR\06RON\05TON"
    133 
    134 /* DELQA-YM CSR layout */
    135 
    136 #ifdef notdef
    137 	struct	qtcsr0
    138 		{
    139 		short	Ibal;
    140 		short	Ibah;
    141 		short	Icr;
    142 		short	pad0;
    143 		short	Srqr;
    144 		short	pad1;
    145 		};
    146 
    147 	struct	qtdevice
    148 		{
    149 		union	{
    150 			u_char	Sarom[12];
    151 			struct	qtcsr0	csr0;
    152 			} qt_un0;
    153 		short	srr;
    154 		short	arqr;
    155 		};
    156 
    157 #define	ibal	qt_un0.csr0.Ibal
    158 #define	ibah	qt_un0.csr0.Ibah
    159 #define	srqr	qt_un0.csr0.Srqr
    160 #define	icr	qt_un0.csr0.Icr
    161 #define	sarom	qt_un0.Sarom
    162 #endif
    163 
    164 #define	CSR_IBAL	0
    165 #define	CSR_IBAH	2
    166 #define	CSR_ICR		4
    167 #define	CSR_SRQR	8
    168 #define	CSR_SRR		12
    169 #define	CSR_ARQR	14
    170 
    171 
    172 /* SRR definitions */
    173 
    174 #define	SRR_FES		0x8000
    175 #define	SRR_CHN		0x4000
    176 #define	SRR_NXM		0x1000
    177 #define	SRR_PER		0x0800
    178 #define	SRR_IME		0x0400
    179 #define	SRR_TBL		0x0200
    180 #define	SRR_RESP	0x0003
    181 #define	SRR_BITS	"\010\017CHN\015NXM\014PER\013IME\012TBL"
    182 
    183 /* SRQR definitions */
    184 
    185 #define	SRQR_REQ	0x0003
    186 
    187 /* ARQR definitions */
    188 
    189 #define	ARQR_TRQ	0x8000
    190 #define	ARQR_RRQ	0x0080
    191 #define	ARQR_SR		0x0002
    192 
    193 /* define ICR definitions */
    194 
    195 #define	ICR_CMD		0x0001
    196 
    197 /* DELQA registers used to shift into -T mode */
    198 
    199 #ifdef notdef
    200 #define	xcr0	qt_un0.csr0.Ibal
    201 #define	xcr1	qt_un0.csr0.Ibah
    202 #endif
    203 #define	CSR_XCR0	CSR_IBAL
    204 #define	CSR_XCR1	CSR_IBAH
    205 
    206 /* INIT block structure and definitions */
    207 
    208 	struct	qt_init
    209 		{
    210 		int16_t		mode;
    211 		u_char		paddr[6];	/* 48 bit physical address */
    212 		uint16_t	laddr[4];	/* 64 bit logical address filter */
    213 		uint16_t	rx_lo;		/* low 16 bits of receive ring addr */
    214 		uint16_t	rx_hi;		/* high 6 bits of receive ring addr */
    215 		uint16_t	tx_lo;		/* low 16 bits of transmit ring addr */
    216 		uint16_t	tx_hi;		/* high 6 bits of transmit ring addr */
    217 		uint16_t	options;
    218 		uint16_t	vector;
    219 		uint16_t	hit;
    220 		char		passwd[6];
    221 		char		pad[4];		/* even on 40 byte for alignment */
    222 		};
    223 
    224 #define	INIT_MODE_PRO	0x8000		/* Promiscuous mode */
    225 #define	INIT_MODE_INT	0x0040		/* Internal Loopback */
    226 #define	INIT_MODE_DRT	0x0020		/* Disable Retry */
    227 #define	INIT_MODE_DTC	0x0008		/* Disable Transmit CRC */
    228 #define	INIT_MODE_LOP	0x0004		/* Loopback */
    229 
    230 #define	INIT_OPTIONS_HIT 0x0002		/* Host Inactivity Timeout Flag */
    231 #define	INIT_OPTIONS_INT 0x0001		/* Interrupt Enable Flag */
    232