/*
* Test if the given partition has an Amiga partition table/Rigid
* Disk block
*/
static int part_test_amiga(struct blk_desc *dev_desc)
{
struct rigid_disk_block *rdb;
struct bootcode_block *bootcode;
PRINTF("part_test_amiga: Testing for an Amiga RDB partition\n");
rdb = get_rdisk(dev_desc);
if (rdb)
{
bootcode = get_bootcode(dev_desc);
if (bootcode)
PRINTF("part_test_amiga: bootable Amiga disk\n");
else
PRINTF("part_test_amiga: non-bootable Amiga disk\n");
return 0;
}
else
{
PRINTF("part_test_amiga: no RDB found\n");
return -1;
}
}
void print_part_amiga (block_dev_desc_t *dev_desc)
{
struct rigid_disk_block *rdb;
struct bootcode_block *boot;
struct partition_block *p;
u32 block;
int i = 1;
rdb = get_rdisk(dev_desc);
if (!rdb)
{
PRINTF("print_part_amiga: no rdb found\n");
return;
}
PRINTF("print_part_amiga: Scanning partition list\n");
block = rdb->partition_list;
PRINTF("print_part_amiga: partition list at 0x%x\n", block);
printf("Summary: DiskBlockSize: %d\n"
" Cylinders : %d\n"
" Sectors/Track: %d\n"
" Heads : %d\n\n",
rdb->block_bytes, rdb->cylinders, rdb->sectors,
rdb->heads);
printf(" First Num. \n"
"Nr. Part. Name Block Block Type Boot Priority\n");
while (block != 0xFFFFFFFF)
{
ulong res;
PRINTF("Trying to load block #0x%X\n", block);
res = dev_desc->block_read(dev_desc->dev, block, 1,
(ulong *)block_buffer);
if (res == 1)
{
p = (struct partition_block *)block_buffer;
if (p->id == AMIGA_ID_PART)
{
PRINTF("PART block suspect at 0x%x, checking checksum\n",block);
if (sum_block((struct block_header *)p) == 0)
{
printf("%-4d ", i); i++;
print_part_info(p);
block = p->next;
}
} else block = 0xFFFFFFFF;
} else block = 0xFFFFFFFF;
}
boot = get_bootcode(dev_desc);
if (boot)
{
printf("Disk is bootable\n");
}
}
/*
* Find partition number partnum on the given drive.
*/
static struct partition_block *find_partition(struct blk_desc *dev_desc,
int partnum)
{
struct rigid_disk_block *rdb;
struct partition_block *p;
u32 block;
PRINTF("Trying to find partition block %d\n", partnum);
rdb = get_rdisk(dev_desc);
if (!rdb)
{
PRINTF("find_partition: no rdb found\n");
return NULL;
}
PRINTF("find_partition: Scanning partition list\n");
block = rdb->partition_list;
PRINTF("find_partition: partition list at 0x%x\n", block);
while (block != 0xFFFFFFFF)
{
ulong res = blk_dread(dev_desc, block, 1, (ulong *)block_buffer);
if (res == 1)
{
p = (struct partition_block *)block_buffer;
if (p->id == AMIGA_ID_PART)
{
PRINTF("PART block suspect at 0x%x, checking checksum\n",block);
if (sum_block((struct block_header *)p) == 0)
{
if (partnum == 0) break;
else
{
partnum--;
block = p->next;
}
}
} else block = 0xFFFFFFFF;
} else block = 0xFFFFFFFF;
}
if (block == 0xFFFFFFFF)
{
PRINTF("PART block not found\n");
return NULL;
}
return (struct partition_block *)block_buffer;
}
