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smc90cx6reg.h revision 1.3 
      1 /*	$NetBSD: smc90cx6reg.h,v 1.3 1995/03/02 09:12:45 chopps Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1994, 1995 Ignatios Souvatzis
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Ignatios Souvatzis
     18  *      for the NetBSD project.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 /*
     35  * The A2060/A560 card use the SMC COM90C26 Arcnet chipset.
     36  * First or last 16k segment, resp., write a fifo which drives the reset line.
     37  * 2nd 16k segment contains the registers.
     38  * 3rd 16k segment contains the buffer RAM.
     39  * All are only accessible at even addresses.
     40  */
     41 
     42 /* CBM Arcnet board */
     43 #define MANUFACTURER_1 514
     44 #define PRODUCT_1        9
     45 
     46 /* Ameristar board */
     47 #define MANUFACTURER_2 1053
     48 #define PRODUCT_2         9
     49 
     50 struct a2060 {
     51 	volatile	u_char	kick1;
     52 	u_char	pad1[16383];
     53 	volatile	u_char	status;		/* also intmask */
     54 	u_char	pad2;
     55 	volatile	u_char	command;
     56 	u_char	pad3[16381];
     57 	volatile	u_char	buffers[4096];	/* even bytes only */
     58 	u_char	pad4[12228];
     59 	volatile	u_char	kick2;
     60 	u_char	pad5[16383];
     61 };
     62 
     63 #define checkbyte	buffers[0]
     64 #define dipswitches	buffers[2]
     65 
     66 /* calculate address for board b, buffer no n and offset o */
     67 #define BUFPTR(b,n,o) (&(b)->buffers[(n)*512+(o)*2])
     68 
     69 #define ARC_TXDIS	0x01
     70 #define ARC_RXDIS	0x02
     71 #define ARC_TX(x)	(0x03 | ((x)<<3))
     72 #define ARC_RX(x)	(0x04 | ((x)<<3))
     73 #define ARC_RXBC(x)	(0x84 | ((x)<<3))
     74 
     75 #define ARC_CONF(x)  	(0x05 | (x))
     76 #define CLR_POR		0x08
     77 #define CLR_RECONFIG	0x10
     78 
     79 #define ARC_CLR(x)	(0x06 | (x))
     80 #define CONF_LONG	0x08
     81 #define CONF_SHORT	0x00
     82 
     83 /*
     84  * These are not in the COM90C65 docs. Derived from the arcnet.asm
     85  * packet driver by Philippe Prindeville and Russel Nelson.
     86  */
     87 
     88 #define ARC_LDTST(x)	(0x07 | (x))
     89 #define TEST_ON		0x08
     90 #define TEST_OFF	0x00
     91 
     92 #define ARC_TA		1	/* int mask also */
     93 #define ARC_TMA		2
     94 #define ARC_RECON	4	/* int mask also */
     95 #define ARC_TEST	8	/* not in the COM90C65 docs (see above) */
     96 #define ARC_POR		0x10	/* non maskable interrupt */
     97 #define ARC_ET1		0x20	/* timeout value bits, normally 1 */
     98 #define ARC_ET2		0x40	/* timeout value bits, normally 1 */
     99 #define ARC_RI		0x80	/* int mask also */
    100