--- /dev/null
+/* $NetBSD: isa_machdep.h,v 1.5 1996/04/11 22:10:11 cgd Exp $ */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ *
+ * @(#)isa.h 5.7 (Berkeley) 5/9/91
+ */
+
+/*
+ * Various pieces of the i386 port want to include this file without
+ * or in spite of using isavar.h, and should be fixed.
+ */
+
+#ifndef _PICA_ISA_MACHDEP_H_ /* XXX */
+#define _PICA_ISA_MACHDEP_H_ /* XXX */
+
+/*
+ * XXX THIS FILE IS A MESS. copyright: berkeley's probably.
+ * contents from isavar.h and isareg.h, mostly the latter.
+ * perhaps charles's?
+ *
+ * copyright from berkeley's isa.h which is now dev/isa/isareg.h.
+ */
+
+/*
+ * Types provided to machine-independent ISA code.
+ */
+typedef void *isa_chipset_tag_t;
+
+struct device; /* XXX */
+
+/*
+ * Functions provided to machine-independent ISA code.
+ */
+void isa_attach_hook __P((struct device *, struct device *,
+ struct isabus_attach_args *));
+void *isa_intr_establish __P((isa_chipset_tag_t ic, int irq, int type,
+ int level, int (*ih_fun)(void *), void *ih_arg, char *ih_what));
+void isa_intr_disestablish __P((isa_chipset_tag_t ic, void *handler));
+
+/*
+ * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED
+ * BY PORTABLE CODE.
+ */
+/*
+ * XXX Various seemingly PC-specific constants, some of which may be
+ * unnecessary anyway.
+ */
+
+/*
+ * RAM Physical Address Space (ignoring the above mentioned "hole")
+ */
+#define RAM_BEGIN 0x0000000 /* Start of RAM Memory */
+#define RAM_END 0x1000000 /* End of RAM Memory */
+#define RAM_SIZE (RAM_END - RAM_BEGIN)
+
+/*
+ * Oddball Physical Memory Addresses
+ */
+#define COMPAQ_RAMRELOC 0x80c00000 /* Compaq RAM relocation/diag */
+#define COMPAQ_RAMSETUP 0x80c00002 /* Compaq RAM setup */
+#define WEITEK_FPU 0xC0000000 /* WTL 2167 */
+#define CYRIX_EMC 0xC0000000 /* Cyrix EMC */
+
+/*
+ * stuff that used to be in pccons.c
+ */
+#if 0
+#define MONO_BASE 0x3B4
+#define MONO_BUF 0xB0000
+#define CGA_BASE 0x3D4
+#define CGA_BUF 0xB8000
+#define IOPHYSMEM 0xA0000
+#endif
+
+
+/*
+ * Interrupt handler chains. isa_intr_establish() inserts a handler into
+ * the list. The handler is called with its (single) argument.
+ */
+
+struct intrhand {
+ int (*ih_fun)();
+ void *ih_arg;
+ u_long ih_count;
+ struct intrhand *ih_next;
+ int ih_level;
+ int ih_irq;
+ char *ih_what;
+};
+
+
+/*
+ * ISA DMA bounce buffers.
+ * XXX should be made partially machine- and bus-mapping-independent.
+ *
+ * DMA_BOUNCE is the number of pages of low-addressed physical memory
+ * to acquire for ISA bounce buffers. If physical memory below 16 MB
+ * then DMA_BOUNCE_LOW will be used.
+ *
+ * isaphysmem is the address of this physical contiguous low memory.
+ * isaphysmempgs is the number of pages allocated.
+ */
+
+#ifndef DMA_BOUNCE
+#define DMA_BOUNCE 48 /* number of pages if memory > 16M */
+#endif
+
+#ifndef DMA_BOUNCE_LOW
+#define DMA_BOUNCE_LOW 16 /* number of pages if memory <= 16M */
+#endif
+
+extern vm_offset_t isaphysmem;
+extern int isaphysmempgs;
+
+
+/*
+ * Variables and macros to deal with the ISA I/O hole.
+ * XXX These should be converted to machine- and bus-mapping-independent
+ * function definitions, invoked through the softc.
+ */
+
+extern u_long atdevbase; /* kernel virtual address of "hole" */
+
+/*
+ * Given a kernel virtual address for some location
+ * in the "hole" I/O space, return a physical address.
+ */
+#define ISA_PHYSADDR(v) ((void *) ((u_long)(v) - atdevbase + IOM_BEGIN))
+
+/*
+ * Given a physical address in the "hole",
+ * return a kernel virtual address.
+ */
+#define ISA_HOLE_VADDR(p) ((void *) ((u_long)(p) - IOM_BEGIN + atdevbase))
+
+
+/*
+ * Miscellanous functions.
+ */
+void sysbeep __P((int, int)); /* beep with the system speaker */
+
+#endif /* _I386_ISA_MACHDEP_H_ XXX */
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