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wdenk
2002-11-03 00:38:21 +00:00
parent f9087a3213
commit fe8c2806cd
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233
disk/part_dos.c Normal file
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/*
* (C) Copyright 2001
* Raymond Lo, lo@routefree.com
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Support for harddisk partitions.
*
* To be compatible with LinuxPPC and Apple we use the standard Apple
* SCSI disk partitioning scheme. For more information see:
* http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92
*/
#include <common.h>
#include <command.h>
#include <ide.h>
#include <cmd_disk.h>
#include "part_dos.h"
#if ((CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI)) && defined(CONFIG_DOS_PARTITION)
/* Convert char[4] in little endian format to the host format integer
*/
static inline int le32_to_int(unsigned char *le32)
{
return ((le32[3] << 24) +
(le32[2] << 16) +
(le32[1] << 8) +
le32[0]
);
}
static inline int is_extended(int part_type)
{
return (part_type == 0x5 ||
part_type == 0xf ||
part_type == 0x85);
}
static void print_one_part (dos_partition_t *p, int ext_part_sector, int part_num)
{
int lba_start = ext_part_sector + le32_to_int (p->start4);
int lba_size = le32_to_int (p->size4);
printf ("%5d\t\t%10d\t%10d\t%2x%s\n",
part_num, lba_start, lba_size, p->sys_ind,
(is_extended (p->sys_ind) ? " Extd" : ""));
}
int test_part_dos (block_dev_desc_t *dev_desc)
{
unsigned char buffer[DEFAULT_SECTOR_SIZE];
if ((dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *) buffer) != 1) ||
(buffer[DOS_PART_MAGIC_OFFSET + 0] != 0x55) ||
(buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) ) {
return (-1);
}
return (0);
}
/* Print a partition that is relative to its Extended partition table
*/
static void print_partition_extended (block_dev_desc_t *dev_desc, int ext_part_sector, int relative,
int part_num)
{
unsigned char buffer[DEFAULT_SECTOR_SIZE];
dos_partition_t *pt;
int i;
if (dev_desc->block_read(dev_desc->dev, ext_part_sector, 1, (ulong *) buffer) != 1) {
printf ("** Can't read partition table on %d:%d **\n",
dev_desc->dev, ext_part_sector);
return;
}
if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) {
printf ("bad MBR sector signature 0x%02x%02x\n",
buffer[DOS_PART_MAGIC_OFFSET],
buffer[DOS_PART_MAGIC_OFFSET + 1]);
return;
}
/* Print all primary/logical partitions */
pt = (dos_partition_t *) (buffer + DOS_PART_TBL_OFFSET);
for (i = 0; i < 4; i++, pt++) {
/*
* fdisk does not show the extended partitions that
* are not in the MBR
*/
if ((pt->sys_ind != 0) &&
(ext_part_sector == 0 || !is_extended (pt->sys_ind)) ) {
print_one_part (pt, ext_part_sector, part_num);
}
/* Reverse engr the fdisk part# assignment rule! */
if ((ext_part_sector == 0) ||
(pt->sys_ind != 0 && !is_extended (pt->sys_ind)) ) {
part_num++;
}
}
/* Follows the extended partitions */
pt = (dos_partition_t *) (buffer + DOS_PART_TBL_OFFSET);
for (i = 0; i < 4; i++, pt++) {
if (is_extended (pt->sys_ind)) {
int lba_start = le32_to_int (pt->start4) + relative;
print_partition_extended (dev_desc, lba_start,
ext_part_sector == 0 ? lba_start
: relative,
part_num);
}
}
return;
}
/* Print a partition that is relative to its Extended partition table
*/
static int get_partition_info_extended (block_dev_desc_t *dev_desc, int ext_part_sector,
int relative, int part_num,
int which_part, disk_partition_t *info)
{
unsigned char buffer[DEFAULT_SECTOR_SIZE];
dos_partition_t *pt;
int i;
if (dev_desc->block_read (dev_desc->dev, ext_part_sector, 1, (ulong *) buffer) != 1) {
printf ("** Can't read partition table on %d:%d **\n",
dev_desc->dev, ext_part_sector);
return -1;
}
if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) {
printf ("bad MBR sector signature 0x%02x%02x\n",
buffer[DOS_PART_MAGIC_OFFSET],
buffer[DOS_PART_MAGIC_OFFSET + 1]);
return -1;
}
/* Print all primary/logical partitions */
pt = (dos_partition_t *) (buffer + DOS_PART_TBL_OFFSET);
for (i = 0; i < 4; i++, pt++) {
/*
* fdisk does not show the extended partitions that
* are not in the MBR
*/
if (pt->sys_ind != 0 && part_num == which_part) {
info->blksz = 512;
info->start = ext_part_sector + le32_to_int (pt->start4);
info->size = le32_to_int (pt->size4);
switch(dev_desc->if_type) {
case IF_TYPE_IDE:
case IF_TYPE_ATAPI:
sprintf (info->name, "hd%c%d\n", 'a' + dev_desc->dev, part_num);
break;
case IF_TYPE_SCSI:
sprintf (info->name, "sd%c%d\n", 'a' + dev_desc->dev, part_num);
break;
case IF_TYPE_USB:
sprintf (info->name, "usbd%c%d\n", 'a' + dev_desc->dev, part_num);
break;
case IF_TYPE_DOC:
sprintf (info->name, "docd%c%d\n", 'a' + dev_desc->dev, part_num);
break;
default:
sprintf (info->name, "xx%c%d\n", 'a' + dev_desc->dev, part_num);
break;
}
/* sprintf(info->type, "%d, pt->sys_ind); */
sprintf (info->type, "U-Boot");
return 0;
}
/* Reverse engr the fdisk part# assignment rule! */
if ((ext_part_sector == 0) ||
(pt->sys_ind != 0 && !is_extended (pt->sys_ind)) ) {
part_num++;
}
}
/* Follows the extended partitions */
pt = (dos_partition_t *) (buffer + DOS_PART_TBL_OFFSET);
for (i = 0; i < 4; i++, pt++) {
if (is_extended (pt->sys_ind)) {
int lba_start = le32_to_int (pt->start4) + relative;
return get_partition_info_extended (dev_desc, lba_start,
ext_part_sector == 0 ? lba_start : relative,
part_num, which_part, info);
}
}
return -1;
}
void print_part_dos (block_dev_desc_t *dev_desc)
{
printf ("Partition Start Sector Num Sectors Type\n");
print_partition_extended (dev_desc, 0, 0, 1);
}
int get_partition_info_dos (block_dev_desc_t *dev_desc, int part, disk_partition_t * info)
{
return get_partition_info_extended (dev_desc, 0, 0, 1, part, info);
}
#endif /* (CONFIG_COMMANDS & CFG_CMD_IDE) && CONFIG_DOS_PARTITION */

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/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Support for harddisk partitions.
*
* To be compatible with LinuxPPC and Apple we use the standard Apple
* SCSI disk partitioning scheme. For more information see:
* http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92
*/
#include <common.h>
#include <command.h>
#include <ide.h>
#include <cmd_disk.h>
#include "part_mac.h"
#if ((CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI)) && defined(CONFIG_MAC_PARTITION)
/* stdlib.h causes some compatibility problems; should fixe these! -- wd */
#ifndef __ldiv_t_defined
typedef struct {
long int quot; /* Quotient */
long int rem; /* Remainder */
} ldiv_t;
extern ldiv_t ldiv (long int __numer, long int __denom);
# define __ldiv_t_defined 1
#endif
static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p);
static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p);
/*
* Test for a valid MAC partition
*/
int test_part_mac (block_dev_desc_t *dev_desc)
{
mac_driver_desc_t ddesc;
mac_partition_t mpart;
ulong i, n;
if (part_mac_read_ddb (dev_desc, &ddesc)) {
/* error reading Driver Desriptor Block, or no valid Signature */
return (-1);
}
n = 1; /* assuming at least one partition */
for (i=1; i<=n; ++i) {
if ((dev_desc->block_read(dev_desc->dev, i, 1, (ulong *)&mpart) != 1) ||
(mpart.signature != MAC_PARTITION_MAGIC) ) {
return (-1);
}
/* update partition count */
n = mpart.map_count;
}
return (0);
}
void print_part_mac (block_dev_desc_t *dev_desc)
{
ulong i, n;
mac_driver_desc_t ddesc;
mac_partition_t mpart;
ldiv_t mb, gb;
if (part_mac_read_ddb (dev_desc, &ddesc)) {
/* error reading Driver Desriptor Block, or no valid Signature */
return;
}
n = ddesc.blk_count;
mb = ldiv(n, ((1024 * 1024) / ddesc.blk_size)); /* MB */
/* round to 1 digit */
mb.rem *= 10 * ddesc.blk_size;
mb.rem += 512 * 1024;
mb.rem /= 1024 * 1024;
gb = ldiv(10 * mb.quot + mb.rem, 10240);
gb.rem += 512;
gb.rem /= 1024;
printf ("Block Size=%d, Number of Blocks=%d, "
"Total Capacity: %ld.%ld MB = %ld.%ld GB\n"
"DeviceType=0x%x, DeviceId=0x%x\n\n"
" #: type name"
" length base (size)\n",
ddesc.blk_size,
ddesc.blk_count,
mb.quot, mb.rem, gb.quot, gb.rem,
ddesc.dev_type, ddesc.dev_id
);
n = 1; /* assuming at least one partition */
for (i=1; i<=n; ++i) {
ulong bytes;
char c;
printf ("%4ld: ", i);
if (dev_desc->block_read (dev_desc->dev, i, 1, (ulong *)&mpart) != 1) {
printf ("** Can't read Partition Map on %d:%ld **\n",
dev_desc->dev, i);
return;
}
if (mpart.signature != MAC_PARTITION_MAGIC) {
printf ("** Bad Signature on %d:%ld - "
"expected 0x%04x, got 0x%04x\n",
dev_desc->dev, i, MAC_PARTITION_MAGIC, mpart.signature);
return;
}
/* update partition count */
n = mpart.map_count;
c = 'k';
bytes = mpart.block_count;
bytes /= (1024 / ddesc.blk_size); /* kB; assumes blk_size == 512 */
if (bytes >= 1024) {
bytes >>= 10;
c = 'M';
}
if (bytes >= 1024) {
bytes >>= 10;
c = 'G';
}
printf ("%20.32s %-18.32s %10u @ %-10u (%3ld%c)\n",
mpart.type,
mpart.name,
mpart.block_count,
mpart.start_block,
bytes, c
);
}
return;
}
/*
* Read Device Descriptor Block
*/
static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p)
{
if (dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *)ddb_p) != 1) {
printf ("** Can't read Driver Desriptor Block **\n");
return (-1);
}
if (ddb_p->signature != MAC_DRIVER_MAGIC) {
#if 0
printf ("** Bad Signature: expected 0x%04x, got 0x%04x\n",
MAC_DRIVER_MAGIC, ddb_p->signature);
#endif
return (-1);
}
return (0);
}
/*
* Read Partition Descriptor Block
*/
static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p)
{
int n = 1;
for (;;) {
/*
* We must always read the descritpor block for
* partition 1 first since this is the only way to
* know how many partitions we have.
*/
if (dev_desc->block_read (dev_desc->dev, n, 1, (ulong *)pdb_p) != 1) {
printf ("** Can't read Partition Map on %d:%d **\n",
dev_desc->dev, n);
return (-1);
}
if (pdb_p->signature != MAC_PARTITION_MAGIC) {
printf ("** Bad Signature on %d:%d: "
"expected 0x%04x, got 0x%04x\n",
dev_desc->dev, n, MAC_PARTITION_MAGIC, pdb_p->signature);
return (-1);
}
if (n == part)
return (0);
if ((part < 1) || (part > pdb_p->map_count)) {
printf ("** Invalid partition %d:%d [%d:1...%d:%d only]\n",
dev_desc->dev, part,
dev_desc->dev,
dev_desc->dev, pdb_p->map_count);
return (-1);
}
/* update partition count */
n = part;
}
/* NOTREACHED */
}
int get_partition_info_mac (block_dev_desc_t *dev_desc, int part, disk_partition_t *info)
{
mac_driver_desc_t ddesc;
mac_partition_t mpart;
if (part_mac_read_ddb (dev_desc, &ddesc)) {
return (-1);
}
info->blksz = ddesc.blk_size;
if (part_mac_read_pdb (dev_desc, part, &mpart)) {
return (-1);
}
info->start = mpart.start_block;
info->size = mpart.block_count;
memcpy (info->type, mpart.type, sizeof(info->type));
memcpy (info->name, mpart.name, sizeof(info->name));
return (0);
}
#endif /* (CONFIG_COMMANDS & CFG_CMD_IDE) && CONFIG_MAC_PARTITION */

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/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* See also Linux sources, fs/partitions/mac.h
*
* This file describes structures and values related to the standard
* Apple SCSI disk partitioning scheme. For more information see:
* http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92
*/
#ifndef _DISK_PART_MAC_H
#define _DISK_PART_MAC_H
#define MAC_DRIVER_MAGIC 0x4552
/*
* Driver Descriptor Structure, in block 0.
* This block is (and shall remain) 512 bytes long.
* Note that there is an alignment problem for the driver descriptor map!
*/
typedef struct mac_driver_desc {
__u16 signature; /* expected to be MAC_DRIVER_MAGIC */
__u16 blk_size; /* block size of device */
__u32 blk_count; /* number of blocks on device */
__u16 dev_type; /* device type */
__u16 dev_id; /* device id */
__u32 data; /* reserved */
__u16 drvr_cnt; /* number of driver descriptor entries */
__u16 drvr_map[247]; /* driver descriptor map */
} mac_driver_desc_t;
/*
* Device Driver Entry
* (Cannot be included in mac_driver_desc because of alignment problems)
*/
typedef struct mac_driver_entry {
__u32 block; /* block number of starting block */
__u16 size; /* size of driver, in 512 byte blocks */
__u16 type; /* OS Type */
} mac_driver_entry_t;
#define MAC_PARTITION_MAGIC 0x504d
/* type field value for A/UX or other Unix partitions */
#define APPLE_AUX_TYPE "Apple_UNIX_SVR2"
/*
* Each Partition Map entry (in blocks 1 ... N) has this format:
*/
typedef struct mac_partition {
__u16 signature; /* expected to be MAC_PARTITION_MAGIC */
__u16 sig_pad; /* reserved */
__u32 map_count; /* # blocks in partition map */
__u32 start_block; /* abs. starting block # of partition */
__u32 block_count; /* number of blocks in partition */
uchar name[32]; /* partition name */
uchar type[32]; /* string type description */
__u32 data_start; /* rel block # of first data block */
__u32 data_count; /* number of data blocks */
__u32 status; /* partition status bits */
__u32 boot_start; /* first block of boot code */
__u32 boot_size; /* size of boot code, in bytes */
__u32 boot_load; /* boot code load address */
__u32 boot_load2; /* reserved */
__u32 boot_entry; /* boot code entry point */
__u32 boot_entry2; /* reserved */
__u32 boot_cksum; /* boot code checksum */
uchar processor[16]; /* Type of Processor */
__u16 part_pad[188]; /* reserved */
} mac_partition_t;
#define MAC_STATUS_BOOTABLE 8 /* partition is bootable */
#endif /* _DISK_PART_MAC_H */