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Diffstat (limited to 'fdisks/fdisksgilabel.h')
| -rw-r--r-- | fdisks/fdisksgilabel.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/fdisks/fdisksgilabel.h b/fdisks/fdisksgilabel.h new file mode 100644 index 000000000..0c76edb91 --- /dev/null +++ b/fdisks/fdisksgilabel.h @@ -0,0 +1,137 @@ +#ifndef FDISK_SGI_LABEL_H +#define FDISK_SGI_LABEL_H + +#include <stdint.h> + +#include "bitops.h" + +/* + * Copyright (C) Andreas Neuper, Sep 1998. + * This file may be modified and redistributed under + * the terms of the GNU Public License. + */ + +struct device_parameter { /* 48 bytes */ + unsigned char skew; + unsigned char gap1; + unsigned char gap2; + unsigned char sparecyl; + unsigned short pcylcount; + unsigned short head_vol0; + unsigned short ntrks; /* tracks in cyl 0 or vol 0 */ + unsigned char cmd_tag_queue_depth; + unsigned char unused0; + unsigned short unused1; + unsigned short nsect; /* sectors/tracks in cyl 0 or vol 0 */ + unsigned short bytes; + unsigned short ilfact; + unsigned int flags; /* controller flags */ + unsigned int datarate; + unsigned int retries_on_error; + unsigned int ms_per_word; + unsigned short xylogics_gap1; + unsigned short xylogics_syncdelay; + unsigned short xylogics_readdelay; + unsigned short xylogics_gap2; + unsigned short xylogics_readgate; + unsigned short xylogics_writecont; +}; + +#define SGI_VOLHDR 0x00 +/* 1 and 2 were used for drive types no longer supported by SGI */ +#define SGI_SWAP 0x03 +/* 4 and 5 were for filesystem types SGI haven't ever supported on MIPS CPUs */ +#define SGI_VOLUME 0x06 +#define SGI_EFS 0x07 +#define SGI_LVOL 0x08 +#define SGI_RLVOL 0x09 +#define SGI_XFS 0x0a +#define SGI_XFSLOG 0x0b +#define SGI_XLV 0x0c +#define SGI_XVM 0x0d +#define ENTIRE_DISK SGI_VOLUME +/* + * controller flags + */ +#define SECTOR_SLIP 0x01 +#define SECTOR_FWD 0x02 +#define TRACK_FWD 0x04 +#define TRACK_MULTIVOL 0x08 +#define IGNORE_ERRORS 0x10 +#define RESEEK 0x20 +#define CMDTAGQ_ENABLE 0x40 + +typedef struct { + unsigned int magic; /* expect SGI_LABEL_MAGIC */ + short boot_part; /* active boot partition */ + short swap_part; /* active swap partition */ + unsigned char boot_file[16]; /* name of the bootfile */ + struct device_parameter devparam; /* 1 * 48 bytes */ + struct volume_directory { /* 15 * 16 bytes */ + unsigned char vol_file_name[8]; /* a character array */ + unsigned int vol_file_start; /* number of logical block */ + unsigned int vol_file_size; /* number of bytes */ + } directory[15]; + struct sgi_partition { /* 16 * 12 bytes */ + unsigned int num_sectors; /* number of blocks */ + unsigned int start_sector; /* must be cylinder aligned */ + unsigned int id; + } partitions[16]; + unsigned int csum; + unsigned int fillbytes; +} sgi_partition; + +typedef struct { + unsigned int magic; /* looks like a magic number */ + unsigned int a2; + unsigned int a3; + unsigned int a4; + unsigned int b1; + unsigned short b2; + unsigned short b3; + unsigned int c[16]; + unsigned short d[3]; + unsigned char scsi_string[50]; + unsigned char serial[137]; + unsigned short check1816; + unsigned char installer[225]; +} sgiinfo; + +#define SGI_LABEL_MAGIC 0x0be5a941 +#define SGI_LABEL_MAGIC_SWAPPED 0x41a9e50b +#define SGI_INFO_MAGIC 0x00072959 +#define SGI_INFO_MAGIC_SWAPPED 0x59290700 + +#define SSWAP16(x) (other_endian ? swab16(x) : (uint16_t)(x)) +#define SSWAP32(x) (other_endian ? swab32(x) : (uint32_t)(x)) + +/* fdisk.c */ +#define sgilabel ((sgi_partition *)cxt->mbr) +#define sgiparam (sgilabel->devparam) + +/* fdisksgilabel.c */ +extern struct systypes sgi_sys_types[]; +extern int check_sgi_label(struct fdisk_context *cxt); +extern void sgi_list_table( struct fdisk_context *cxt, int xtra ); +extern int sgi_change_sysid(struct fdisk_context *cxt, int i, int sys); +extern unsigned int sgi_get_start_sector(struct fdisk_context *cxt, int i ); +extern unsigned int sgi_get_num_sectors(struct fdisk_context *cxt, int i ); +extern int sgi_get_sysid(struct fdisk_context *cxt, int i ); +extern void sgi_delete_partition( struct fdisk_context *cxt, int i ); +extern void sgi_add_partition( struct fdisk_context *cxt, int n, int sys ); +extern void create_sgilabel( struct fdisk_context *cxt ); +extern void create_sgiinfo(struct fdisk_context *cxt); +extern int verify_sgi(struct fdisk_context *cxt, int verbose ); +extern void sgi_write_table( struct fdisk_context *cxt ); +extern void sgi_set_ilfact( void ); +extern void sgi_set_rspeed( void ); +extern void sgi_set_pcylcount( void ); +extern void sgi_set_xcyl( void ); +extern void sgi_set_ncyl( void ); +extern void sgi_set_bootpartition(struct fdisk_context *cxt, int i ); +extern void sgi_set_swappartition(struct fdisk_context *cxt, int i ); +extern int sgi_get_bootpartition(struct fdisk_context *cxt); +extern int sgi_get_swappartition(struct fdisk_context *cxt); +extern void sgi_set_bootfile(struct fdisk_context *cxt); + +#endif /* FDISK_SGI_LABEL_H */ |