/* $OpenBSD: dioreg.h,v 1.3 2005/01/15 21:13:08 miod Exp $ */ /* $NetBSD: dioreg.h,v 1.3 1997/01/30 09:18:40 thorpej Exp $ */ /*- * Copyright (c) 1996 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * Portions of this file are derived from software contributed to Berkeley * by the Systems Programming Group of the University of Utah Computer * Science Department. * * 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 NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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. */ /* * Register definitions for the DIO and DIO-II bus. */ /* * DIO/DIO-II device registers, offsets from base of device. All * registers are 8-bit. */ #define DIO_IDOFF 0x01 /* primary device id */ #define DIO_IPLOFF 0x03 /* interrupt level */ #define DIO_SECIDOFF 0x15 /* secondary device id */ #define DIOII_SIZEOFF 0x101 /* device size */ /* * System physical addresses of some `special' DIO devices. */ #define DIO_IHPIBADDR 0x478000 /* internal HP-IB; select code 7 */ /* * DIO ranges from select codes 0-63 at physical addresses given by: * 0x600000 + (sc - 32) * 0x10000 * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for * their control space and the remaining areas, [0x200000-0x400000) and * [0x800000-0x1000000), are for additional space required by a card; * e.g. a display framebuffer. * * DIO-II ranges from select codes 132-255 at physical addresses given by: * 0x1000000 + (sc - 132) * 0x400000 * The address range of DIO-II space is thus [0x1000000-0x20000000). * * DIO/DIO-II space is too large to map in its entirety, instead devices * are mapped into kernel virtual address space allocated from a range * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''. */ #define DIO_BASE 0x600000 /* start of DIO space */ #define DIO_END 0x1000000 /* end of DIO space */ #define DIO_DEVSIZE 0x10000 /* size of a DIO device */ #define DIOII_BASE 0x01000000 /* start of DIO-II space */ #define DIOII_END 0x20000000 /* end of DIO-II space */ #define DIOII_DEVSIZE 0x00400000 /* size of a DIO-II device */ /* * Find the highest select code for a given machine; HP320 doesn't * have DIO-II. */ #define DIO_SCMAX(machineid) ((machineid) == HP_320 ? 32 : 256) /* * Base of DIO-II select codes. */ #define DIOII_SCBASE 132 /* * Macro that returns true if a select code lies within * the select code `hole'. */ #define DIO_INHOLE(scode) ((scode) >= 32 && (scode) < 132) /* * Macros to determine if device is DIO or DIO-II. */ #define DIO_ISDIO(scode) ((scode) >= 0 && (scode) < 32) #define DIO_ISDIOII(scode) ((scode) >= DIOII_SCBASE && (scode) < 256) /* * Macro to determine if device is a framebuffer, given the * primary id of the device. We key off this to determine if * we should look at secondary id and ignore interrupt level. */ #define DIO_ISFRAMEBUFFER(id) \ ((id) == DIO_DEVICE_ID_FRAMEBUFFER) /* * Macro to extract primary and decondary device ids, given * the base address of the device. */ #define DIO_ID(base) \ (*((u_int8_t *)((u_long)(base) + DIO_IDOFF))) #define DIO_SECID(base) \ (*((u_int8_t *)((u_long)(base) + DIO_SECIDOFF))) /* * Macro to extract the interrupt level, given the * base address of the device. */ #define DIO_IPL(base) \ ((((*((u_int8_t *)((u_long)(base) + DIO_IPLOFF))) >> 4) & 0x03) + 3) /* * Macro to compute the size of a DIO-II device's address * space, given the base address of the device. */ #define DIOII_SIZE(base) \ ((int)((*((u_int8_t *)((u_long)(base) + DIOII_SIZEOFF)) + 1) \ * 0x100000)) /* * Given a select code and device base address, compute * the size of the DIO/DIO-II device. */ #define DIO_SIZE(scode, base) \ (DIO_ISDIOII((scode)) ? DIOII_SIZE((base)) : DIO_DEVSIZE)