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intioreg.h revision 1.1.20.1 
      1 /*	$NetBSD: intioreg.h,v 1.1.20.1 2004/08/03 10:34:23 skrll Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Gregory McGarry.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  *  Registers for interface to the wired devices.
     41  */
     42 
     43 /* HP3xx/4xx registers */
     44 #define INTIO_DEV_3xx_PAD0	0
     45 #define INTIO_DEV_3xx_DATA	1
     46 #define INTIO_DEV_3xx_PAD1	2
     47 #define INTIO_DEV_3xx_CMD	3
     48 #define INTIO_DEV_3xx_STAT	3
     49 
     50 /* HP7xx registers - XXX check these */
     51 #define INTIO_DEV_7xx_RSTHOLD	0
     52 #define INTIO_DEV_7xx_DATA	2048
     53 #define INTIO_DEV_7xx_CMD	2049
     54 #define INTIO_DEV_7xx_STAT	2049
     55 #define INTIO_DEV_7xx_RSTREL	3072
     56 
     57 /* HP8xx registers - XXX check these */
     58 #define INTIO_DEV_8xx_DATA	3
     59 #define INTIO_DEV_8xx_CMD	11
     60 #define INTIO_DEV_8xx_STAT	11
     61 
     62 /* Status bits */
     63 #define INTIO_DEV_DATA_READY	0x01
     64 #define INTIO_DEV_BUSY		0x02
     65 /* the top four bits specify a "service request" status code */
     66 #define INTIO_DEV_SRSHIFT	4
     67 #define INTIO_DEV_SRMASK	0x0f
     68 
     69 /* Valid "service request" status codes */
     70 #define INTIO_DEV_SR_DATAAVAIL	0x04
     71 /* the specific wired device will overload the remaining bits */
     72