| #ifndef __COMMON_H |
| #define __COMMON_H |
| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) Hewlett-Packard (Paul Bame) paul_bame@hp.com |
| */ |
| #include <stdarg.h> |
| #include <asm/byteorder.h> |
| #include <linux/genhd.h> |
| |
| #define PALOVERSION "1.3" |
| |
| /* size of I/O block used in HP firmware */ |
| #define FW_BLOCKSIZE 2048 |
| |
| /* assume kernel will always be loaded into the "lower" physical memory */ |
| #define PHYS(virtual) ((virtual) & 0x00ffffff) |
| |
| /* This struct is placed at the start of the boot loader executable. The |
| * "magic" number is the assembly-language branch needed to skip over the |
| * rest of the structure. This structure is manipulated by the program |
| * which creates and updates boot media (palo). It must stay 256 bytes |
| * in length! |
| * |
| * kern_sz = 0 or rd_sz = 0 means no kern or ramdisk respectively. |
| */ |
| #define PALOMAGIC "PALO" |
| #define PALOHDRVERSION 4 |
| |
| #define PFLAG_INSTALL 0x1 |
| #define PFLAG_EXT2 0x2 |
| |
| struct firstblock |
| { |
| unsigned char lifmagic0; /* 0x80 */ |
| unsigned char lifmagic1; /* 0x00 */ |
| |
| char palomagic[5]; /* PALO */ |
| unsigned char version; |
| int kern32_offset; /* seek() here to begin loading kernel */ |
| int kern32_sz; /* # bytes to load */ |
| int rd_offset; /* seek() here to begin loading ramdisk */ |
| int rd_sz; /* # bytes in ramdisk */ |
| char cmdline[128]; /* Up to 127 bytes of text plus a \0 */ |
| |
| unsigned char pad1[0xf0 - 8 - 7 * sizeof (int) - 128]; |
| unsigned int flags; |
| int kern64_offset; |
| int kern64_sz; |
| |
| int ipl_addr; /* offset 0xf0 */ |
| int ipl_size; |
| int ipl_entry; |
| |
| /* offset 0x1be */ |
| unsigned char pad2[0x1be - (0xf0 + 3 * sizeof (int))]; |
| struct partition part[4]; |
| /* offset 0x1fe */ |
| unsigned char dosmagic[2]; /* 0x55, 0xaa */ |
| unsigned char pad4[2048 - 0x200]; |
| }; |
| |
| /* we use this so that we can do without the ctype library */ |
| #define is_digit(c) ((c) >= '0' && (c) <= '9') |
| |
| struct diskpartition |
| { |
| /* in honor of the MBR scheme, these are in 512-byte sectors */ |
| unsigned start; |
| /* length == 0 means nothing's here */ |
| unsigned length; |
| unsigned char id; |
| }; |
| |
| #define MAXPARTS 16 |
| |
| int seekread(int fd, char *buf, unsigned nbytes, unsigned devaddr); |
| #define STRUCTWRITE(f, data, where) seekwrite((f), (char *)&data, sizeof data, (where)) |
| #define STRUCTREAD(f, data, where) seekread((f), (char *)&data, sizeof data, (where)) |
| |
| /* diskpart.c */ |
| extern int is_extended(int id); |
| extern int load_partitions(int bootdev, struct diskpartition *mptab, int maxparts); |
| extern void print_ptab(struct diskpartition *mptab, int maxparts); |
| extern void print_ptab_pretty(struct diskpartition *mptab, int maxparts); |
| |
| /* $Id: common.h,v 1.11 2001/06/13 05:08:55 bame Exp $ */ |
| #endif /* __COMMON_H */ |