xref: /src/sys/dev/ic/smc90cx6reg.h

/*
 * Copyright (c) 1994, 1995 Ignatios Souvatzis
 * All rights reserved.
 *
 * This software was written by Ignatios Souvatzis and contributed
 * to the University of California at Berkeley.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 *	$Id: smc90cx6reg.h,v 1.1 1995/02/28 22:04:06 chopps Exp $
 */

/*
 * The A2060/A560 card use the SMC COM90C26 Arcnet chipset.
 * First or last 16k segment, resp., write a fifo which drives the reset
 * line.
 * 2nd 16k segment contains the registers.
 * 3rd 16k segment contains the buffer RAM.
 * All are only accessible at even addresses.
 */


/* CBM Arcnet board */
#define MANUFACTURER_1 514
#define PRODUCT_1        9

/* Ameristar board */
#define MANUFACTURER_2 1053
#define PRODUCT_2         9

typedef struct {
	u_char volatile kick1;
	u_char pad1[16383];

	u_char volatile status; /* also intmask */

	u_char pad2;
	u_char volatile command;
	u_char pad3[16381];
	u_char volatile buffers[4096];	/* even bytes only */

#define checkbyte	buffers[0]
#define dipswitches	buffers[2]

	u_char pad4[12228];
	u_char volatile kick2;
	u_char pad5[16383];
} A2060;

/* calculate address for board b, buffer no n and offset o */
#define BUFPTR(b,n,o) (&(b)->buffers[(n)*512+(o)*2])

#define ARC_TXDIS	 0x01
#define ARC_RXDIS	 0x02
#define ARC_TX(x)	(0x03 | ((x)<<3))
#define ARC_RX(x)	(0x04 | ((x)<<3))
#define ARC_RXBC(x)	(0x84 | ((x)<<3))

#define ARC_CONF(x)  	(0x05 | (x))
#define CLR_POR		 0x08
#define CLR_RECONFIG	 0x10

#define ARC_CLR(x)	(0x06 | (x))
#define CONF_LONG	 0x08
#define CONF_SHORT	 0x00

/*
 * These are not in the COM90C65 docs. Derived from the arcnet.asm
 * packet driver by Philippe Prindeville and Russel Nelson.
 */

#define ARC_LDTST(x)	(0x07 | (x))
#define TEST_ON		 0x08
#define TEST_OFF	 0x00

#define ARC_TA		1	/* int mask also */
#define ARC_TMA		2
#define ARC_RECON	4	/* int mask also */
#define ARC_TEST	8	/* not in the COM90C65 docs (see above) */
#define ARC_POR		0x10	/* non maskable interrupt */
#define ARC_ET1		0x20	/* timeout value bits, normally 1 */
#define ARC_ET2		0x40	/* timeout value bits, normally 1 */
#define ARC_RI		0x80	/* int mask also */