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[src/trunk]: src/sys/dev/dec Move dec_boot.h to here from arch/pmax/include a...
details: https://anonhg.NetBSD.org/src/rev/8cdb728f5f69
branches: trunk
changeset: 488023:8cdb728f5f69
user: matt <matt%NetBSD.org@localhost>
date: Fri Jun 16 23:09:57 2000 +0000
description:
Move dec_boot.h to here from arch/pmax/include and add the VAX boot block
info. Eventually Alpha boot block information as well.
diffstat:
sys/dev/dec/Makefile | 4 +-
sys/dev/dec/dec_boot.h | 176 +++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 178 insertions(+), 2 deletions(-)
diffs (193 lines):
diff -r 7768baadc207 -r 8cdb728f5f69 sys/dev/dec/Makefile
--- a/sys/dev/dec/Makefile Fri Jun 16 22:50:34 2000 +0000
+++ b/sys/dev/dec/Makefile Fri Jun 16 23:09:57 2000 +0000
@@ -1,7 +1,7 @@
-# $NetBSD: Makefile,v 1.1 1998/06/12 23:22:49 cgd Exp $
+# $NetBSD: Makefile,v 1.2 2000/06/16 23:09:57 matt Exp $
INCSDIR= /usr/include/dev/dec
-INCS= clockvar.h lk201.h mcclock_pad32.h mcclockvar.h
+INCS= clockvar.h dec_boot.h lk201.h mcclock_pad32.h mcclockvar.h
.include <bsd.kinc.mk>
diff -r 7768baadc207 -r 8cdb728f5f69 sys/dev/dec/dec_boot.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/dec/dec_boot.h Fri Jun 16 23:09:57 2000 +0000
@@ -0,0 +1,176 @@
+/* $NetBSD: dec_boot.h,v 1.1 2000/06/16 23:09:57 matt Exp $ */
+
+/*
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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.
+ *
+ * @(#)dec_boot.h 8.1 (Berkeley) 6/10/93
+ *
+ * devDiskLabel.h --
+ *
+ * This defines the disk label that Sun writes on the 0'th sector of
+ * the 0'th cylinder of its SMD disks. The disk label contains some
+ * geometry information and also the division of the disk into a
+ * number of partitions. Each partition is identified to the drive
+ * by a different unit number.
+ *
+ * from: Header: /sprite/src/kernel/dev/RCS/devDiskLabel.h,
+ * v 9.4 90/03/01 12:22:36 jhh Exp SPRITE (Berkeley)
+ */
+
+#ifndef _DEV_DEC_DEC_BOOT_H_
+#define _DEV_DEC_DEC_BOOT_H_
+
+/*
+ * Boot block information on the 0th sector.
+ * The boot program is stored in sequences of contiguous blocks.
+ *
+ * NOTE: The standard disk label offset is 64 which is
+ * after the boot information expected by the PROM boot loader.
+ */
+
+/* PMAX (DECstation / MIPS) boot block information
+ */
+/*
+ * If mode is 0, there is just one sequence of blocks and one Dec_BootMap
+ * is used. If mode is 1, there are multiple sequences of blocks
+ * and multiple Dec_BootMaps are used, the last with numBlocks = 0.
+ */
+struct pmax_boot_map {
+ int32_t num_blocks; /* Number of blocks to read. */
+ int32_t start_block; /* Starting block on disk. */
+};
+
+/*
+ * This is the structure of a disk or tape boot block. The boot_map
+ * can either be a single boot count and start block (contiguous mode)
+ * or a list of up to 61 (to fill a 512 byte sector) block count and
+ * start block pairs. Under NetBSD, contiguous mode is always used.
+ */
+struct pmax_boot_block {
+ u_int8_t pad[8];
+ int32_t magic; /* PMAX_BOOT_MAGIC */
+ int32_t mode; /* Mode for boot info. */
+ u_int32_t load_addr; /* Address to start loading. */
+ u_int32_t exec_addr; /* Address to start execing. */
+ struct pmax_boot_map map[61]; /* boot program section(s). */
+} __attribute__((__packed__));
+
+#define PMAX_BOOT_MAGIC 0x0002757a
+#define PMAX_BOOTMODE_CONTIGUOUS 0
+#define PMAX_BOOTMODE_SCATTERED 1
+
+#define PMAX_BOOT_BLOCK_OFFSET 0
+#define PMAX_BOOT_BLOCK_BLOCKSIZE 512
+
+/* VAX boot block information
+ *
+ */
+struct vax_boot_block {
+/* Note that these don't overlap any of the pmax boot block
+ */
+ u_int8_t pad0[2];
+ u_int8_t bb_id_offset; /* offset in words to id (magic1)*/
+ u_int8_t bb_mbone /* must be one */
+ u_int16_t bb_lbn_hi; /* lbn (hi word) of bootstrap */
+ u_int16_t bb_lbn_low; /* lbn (low word) of bootstrap */
+ u_int8_t pad1[332];
+
+ /* The rest of these fields are identification area and describe
+ * the secondary block for uVAX VMB.
+ */
+ u_int8_t bb_magic1; /* magic number */
+ u_int8_t bb_mbz1; /* must be zero */
+ u_int8_t bb_pad1; /* any value */
+ u_int8_t bb_sum1; /* ~(magic1 + mbz1 + pad1) */
+
+ u_int8_t bb_mbz2; /* must be zero */
+ u_int8_t bb_volinfo; /* volinfo */
+ u_int8_t bb_pad2a; /* any value */
+ u_int8_t bb_pad2b; /* any value */
+
+ u_int32_t bb_size; /* size in blocks of bootstrap */
+ u_int32_t bb_load; /* load offset to bootstrap */
+ u_int32_t bb_entry; /* byte offset in bootstrap */
+ u_int32_t bb_sum3; /* sum of previous 3 fields */
+
+ /* The rest is unused.
+ */
+ u_int8_t pad2[148];
+} __attribute__((__packed__));
+
+#define VAX_BOOT_MAGIC1 0x18 /* size of BB info? */
+#define VAX_BOOT_VOLINFO_NONE 0x00 /* no special info */
+#define VAX_BOOT_VOLINFO_SS 0x01 /* single sided */
+#define VAX_BOOT_VOLINFO_DS 0x81 /* double sided */
+
+#define VAX_BOOT_SIZE 16 /* 16 blocks */
+#define VAX_BOOT_LOAD 0 /* no load offset */
+#define VAX_BOOT_ENTRY 0x200 /* one block in */
+
+#define VAX_BOOT_BLOCK_OFFSET 0
+#define VAX_BOOT_BLOCK_BLOCKSIZE 512
+
+/* The following describes the ULTRIX partition tables.
+ */
+/*
+ * DEC_NUM_DISK_PARTS is the number of partitions that are recorded in
+ * the label information. The size of the padding in the Dec_DiskLabel
+ * type is dependent on this number...
+ */
+#define DEC_NUM_DISK_PARTS 8
+
+/*
+ * A disk is divided into partitions and this type specifies where a
+ * partition starts and how many bytes it contains.
+ */
+typedef struct dec_disk_map {
+ int32_t num_blocks; /* Number of 512 byte blocks in partition. */
+ int32_t start_block; /* Start of partition in blocks. */
+} dec_disk_map;
+
+/*
+ * Label information on the 31st (DEC_LABEL_SECTOR) sector.
+ */
+typedef struct dec_disklabel {
+ u_int8_t pad0[440]; /* DIFFERENT from sprite!!! */
+ int32_t magic; /* DEC_LABEL_MAGIC */
+ int32_t is_partitioned; /* 1 if disk is partitioned. */
+ dec_disk_map map[DEC_NUM_DISK_PARTS]; /* Indicates disk partitions. */
+} dec_disklabel;
+
+#define DEC_LABEL_MAGIC 0x00032957
+#define DEC_LABEL_SECTOR 31
+
+#endif /* !_DEV_DEC_DEC_BOOT_H_ */
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