initial import of NetBSD tree

1 files changed, 137 insertions, 0 deletions

diff --git a/sys/arch/i386/isa/isa_machdep.h b/sys/arch/i386/isa/isa_machdep.h
new file mode 100644
index 00000000000..a118e7fc17a
--- /dev/null
+++ b/sys/arch/i386/isa/isa_machdep.h
@@ -0,0 +1,137 @@
+/*	$NetBSD: isa_machdep.h,v 1.4 1995/05/04 19:39:46 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
+ */
+
+/*
+ * 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.
+ */
+
+
+/*
+ * 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
+ */
+#define	MONO_BASE	0x3B4
+#define	MONO_BUF	0xB0000
+#define	CGA_BASE	0x3D4
+#define	CGA_BUF		0xB8000
+#define	IOPHYSMEM	0xA0000
+
+
+/*
+ * 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;
+};
+
+ 
+/*
+ * 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.
+ *
+ * isaphysmem is the location of those bounce buffers.  (They are currently
+ * assumed to be contiguous.
+ */
+
+#ifndef DMA_BOUNCE
+#define	DMA_BOUNCE      8		/* one buffer per channel */
+#endif
+
+extern vm_offset_t isaphysmem;
+
+
+/*
+ * 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 */