diff options
Diffstat (limited to 'sys/arch/landisk/stand/bootxx/boot1.c')
| -rw-r--r-- | sys/arch/landisk/stand/bootxx/boot1.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/sys/arch/landisk/stand/bootxx/boot1.c b/sys/arch/landisk/stand/bootxx/boot1.c new file mode 100644 index 00000000000..63d46325739 --- /dev/null +++ b/sys/arch/landisk/stand/bootxx/boot1.c @@ -0,0 +1,157 @@ +/* $OpenBSD: boot1.c,v 1.1 2006/10/06 21:48:50 mickey Exp $ */ +/* $NetBSD: boot1.c,v 1.1 2006/09/01 21:26:19 uwe Exp $ */ + +/*- + * Copyright (c) 2003 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by David Laight. + * + * 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 FOUNDATION 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. + */ + +#include <sys/param.h> +#include <lib/libsa/stand.h> +#include <lib/libsa/ufs.h> + +#include <sys/disklabel.h> + +#define XSTR(x) #x +#define STR(x) XSTR(x) + +static uint32_t bios_sector; + +const char *boot1(uint32_t *); +void putstr(const char *str); +int raise(int sig); +int blkdevstrategy(void *, int, daddr_t, size_t, void *, size_t *); + +extern struct disklabel ptn_disklabel; + +struct fs_ops file_system[] = { + { ufs_open, ufs_close, ufs_read, ufs_write, ufs_seek, + ufs_stat, nullsys }, +}; +int nfsys = NENTS(file_system); + +struct devsw devsw[] = { + { "dk", blkdevstrategy, nullsys, nullsys, noioctl }, +}; +int ndevs = NENTS(devsw); + +const char * +boot1(uint32_t *sector) +{ + struct stat sb; + int fd; + + bios_sector = *sector; + + putstr("\r\nOpenBSD/" MACHINE " Primary Bootstrap\r\n"); + + do { + /* + * Nothing at the start of the MBR partition, fallback on + * partition 'a' from the disklabel in this MBR partition. + */ + if (ptn_disklabel.d_magic != DISKMAGIC) + break; + if (ptn_disklabel.d_magic2 != DISKMAGIC) + break; + if (ptn_disklabel.d_partitions[0].p_fstype == FS_UNUSED) + break; + + bios_sector = ptn_disklabel.d_partitions[0].p_offset; + *sector = bios_sector; + fd = open("boot", 0); + } while (0); + + if (fd == -1 || fstat(fd, &sb) == -1) + return "Can't open /boot.\r\n"; + +#if 0 + if (sb.st_size > SECONDARY_MAX_LOAD) + return "/boot too large.\r\n"; +#endif + + if (read(fd, (void *)LOADADDRESS, sb.st_size) != sb.st_size) + return "/boot load failed.\r\n"; + + if (*(uint32_t *)(LOADADDRESS + 4) != 0x20041110) + return "Invalid /boot file format.\r\n"; + + return 0; +} + +int +blkdevstrategy(void *devdata, int flag, daddr_t dblk, size_t size, void *buf, size_t *rsize) +{ + + if (flag != F_READ) + return EROFS; + + if (size & (DEV_BSIZE - 1)) + return EINVAL; + + if (rsize) + *rsize = size; + + if (size != 0 && readsects(0x40, bios_sector + dblk, buf, + size / DEV_BSIZE) != 0) + return EIO; + + return 0; +} + +/* ARGUSED */ +int +raise(int sig) +{ + + return 0; +} + +void +twiddle(void) +{ + static int pos; + + putchar("|/-\\"[pos++ & 3]); + putchar('\b'); +} + +int +devopen(struct open_file *f, const char *fname, char **file) +{ + *file = (char *)fname; + f->f_flags |= F_NODEV; + f->f_dev = &devsw[0]; + return (0); +} |