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Diffstat (limited to 'windhoek/partitions/atari.c')
| -rw-r--r-- | windhoek/partitions/atari.c | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/windhoek/partitions/atari.c b/windhoek/partitions/atari.c deleted file mode 100644 index 1f3572d5..00000000 --- a/windhoek/partitions/atari.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * fs/partitions/atari.c - * - * Code extracted from drivers/block/genhd.c - * - * Copyright (C) 1991-1998 Linus Torvalds - * Re-organised Feb 1998 Russell King - */ - -#include <linux/ctype.h> -#include "check.h" -#include "atari.h" - -/* ++guenther: this should be settable by the user ("make config")?. - */ -#define ICD_PARTS - -/* check if a partition entry looks valid -- Atari format is assumed if at - least one of the primary entries is ok this way */ -#define VALID_PARTITION(pi,hdsiz) \ - (((pi)->flg & 1) && \ - isalnum((pi)->id[0]) && isalnum((pi)->id[1]) && isalnum((pi)->id[2]) && \ - be32_to_cpu((pi)->st) <= (hdsiz) && \ - be32_to_cpu((pi)->st) + be32_to_cpu((pi)->siz) <= (hdsiz)) - -static inline int OK_id(char *s) -{ - return memcmp (s, "GEM", 3) == 0 || memcmp (s, "BGM", 3) == 0 || - memcmp (s, "LNX", 3) == 0 || memcmp (s, "SWP", 3) == 0 || - memcmp (s, "RAW", 3) == 0 ; -} - -int atari_partition(struct parsed_partitions *state, struct block_device *bdev) -{ - Sector sect; - struct rootsector *rs; - struct partition_info *pi; - u32 extensect; - u32 hd_size; - int slot; -#ifdef ICD_PARTS - int part_fmt = 0; /* 0:unknown, 1:AHDI, 2:ICD/Supra */ -#endif - - rs = (struct rootsector *) read_dev_sector(bdev, 0, §); - if (!rs) - return -1; - - /* Verify this is an Atari rootsector: */ - hd_size = bdev->bd_inode->i_size >> 9; - if (!VALID_PARTITION(&rs->part[0], hd_size) && - !VALID_PARTITION(&rs->part[1], hd_size) && - !VALID_PARTITION(&rs->part[2], hd_size) && - !VALID_PARTITION(&rs->part[3], hd_size)) { - /* - * if there's no valid primary partition, assume that no Atari - * format partition table (there's no reliable magic or the like - * :-() - */ - put_dev_sector(sect); - return 0; - } - - pi = &rs->part[0]; - printk (" AHDI"); - for (slot = 1; pi < &rs->part[4] && slot < state->limit; slot++, pi++) { - struct rootsector *xrs; - Sector sect2; - ulong partsect; - - if ( !(pi->flg & 1) ) - continue; - /* active partition */ - if (memcmp (pi->id, "XGM", 3) != 0) { - /* we don't care about other id's */ - put_partition (state, slot, be32_to_cpu(pi->st), - be32_to_cpu(pi->siz)); - continue; - } - /* extension partition */ -#ifdef ICD_PARTS - part_fmt = 1; -#endif - printk(" XGM<"); - partsect = extensect = be32_to_cpu(pi->st); - while (1) { - xrs = (struct rootsector *)read_dev_sector(bdev, partsect, §2); - if (!xrs) { - printk (" block %ld read failed\n", partsect); - put_dev_sector(sect); - return -1; - } - - /* ++roman: sanity check: bit 0 of flg field must be set */ - if (!(xrs->part[0].flg & 1)) { - printk( "\nFirst sub-partition in extended partition is not valid!\n" ); - put_dev_sector(sect2); - break; - } - - put_partition(state, slot, - partsect + be32_to_cpu(xrs->part[0].st), - be32_to_cpu(xrs->part[0].siz)); - - if (!(xrs->part[1].flg & 1)) { - /* end of linked partition list */ - put_dev_sector(sect2); - break; - } - if (memcmp( xrs->part[1].id, "XGM", 3 ) != 0) { - printk("\nID of extended partition is not XGM!\n"); - put_dev_sector(sect2); - break; - } - - partsect = be32_to_cpu(xrs->part[1].st) + extensect; - put_dev_sector(sect2); - if (++slot == state->limit) { - printk( "\nMaximum number of partitions reached!\n" ); - break; - } - } - printk(" >"); - } -#ifdef ICD_PARTS - if ( part_fmt!=1 ) { /* no extended partitions -> test ICD-format */ - pi = &rs->icdpart[0]; - /* sanity check: no ICD format if first partition invalid */ - if (OK_id(pi->id)) { - printk(" ICD<"); - for (; pi < &rs->icdpart[8] && slot < state->limit; slot++, pi++) { - /* accept only GEM,BGM,RAW,LNX,SWP partitions */ - if (!((pi->flg & 1) && OK_id(pi->id))) - continue; - part_fmt = 2; - put_partition (state, slot, - be32_to_cpu(pi->st), - be32_to_cpu(pi->siz)); - } - printk(" >"); - } - } -#endif - put_dev_sector(sect); - - printk ("\n"); - - return 1; -} |