[people/ms/u-boot.git] / include / part.h

/*
 * (C) Copyright 2000-2004
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */
#ifndef _PART_H
#define _PART_H

#include <blk.h>
#include <ide.h>

#define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
		 ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
		 ((x & 0xffff0000) ? 16 : 0))
#define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))

/* Part types */
#define PART_TYPE_UNKNOWN	0x00
#define PART_TYPE_MAC		0x01
#define PART_TYPE_DOS		0x02
#define PART_TYPE_ISO		0x03
#define PART_TYPE_AMIGA		0x04
#define PART_TYPE_EFI		0x05

/*
 * Type string for U-Boot bootable partitions
 */
#define BOOT_PART_TYPE	"U-Boot"	/* primary boot partition type	*/
#define BOOT_PART_COMP	"PPCBoot"	/* PPCBoot compatibility type	*/

/* device types */
#define DEV_TYPE_UNKNOWN	0xff	/* not connected */
#define DEV_TYPE_HARDDISK	0x00	/* harddisk */
#define DEV_TYPE_TAPE		0x01	/* Tape */
#define DEV_TYPE_CDROM		0x05	/* CD-ROM */
#define DEV_TYPE_OPDISK		0x07	/* optical disk */

typedef struct disk_partition {
	lbaint_t	start;	/* # of first block in partition	*/
	lbaint_t	size;	/* number of blocks in partition	*/
	ulong	blksz;		/* block size in bytes			*/
	uchar	name[32];	/* partition name			*/
	uchar	type[32];	/* string type description		*/
	int	bootable;	/* Active/Bootable flag is set		*/
#ifdef CONFIG_PARTITION_UUIDS
	char	uuid[37];	/* filesystem UUID as string, if exists	*/
#endif
#ifdef CONFIG_PARTITION_TYPE_GUID
	char	type_guid[37];	/* type GUID as string, if exists	*/
#endif
} disk_partition_t;

/* Misc _get_dev functions */
#ifdef CONFIG_PARTITIONS
/**
 * blk_get_dev() - get a pointer to a block device given its type and number
 *
 * Each interface allocates its own devices and typically struct blk_desc is
 * contained with the interface's data structure. There is no global
 * numbering for block devices, so the interface name must be provided.
 *
 * @ifname:	Interface name (e.g. "ide", "scsi")
 * @dev:	Device number (0 for first device on that interface, 1 for
 *		second, etc.
 * @return pointer to the block device, or NULL if not available, or an
 *	   error occurred.
 */
struct blk_desc *blk_get_dev(const char *ifname, int dev);
struct blk_desc *ide_get_dev(int dev);
struct blk_desc *sata_get_dev(int dev);
struct blk_desc *scsi_get_dev(int dev);
struct blk_desc *usb_stor_get_dev(int dev);
struct blk_desc *mmc_get_dev(int dev);

/**
 * mmc_select_hwpart() - Select the MMC hardware partiion on an MMC device
 *
 * MMC devices can support partitioning at the hardware level. This is quite
 * separate from the normal idea of software-based partitions. MMC hardware
 * partitions must be explicitly selected. Once selected only the region of
 * the device covered by that partition is accessible.
 *
 * The MMC standard provides for two boot partitions (numbered 1 and 2),
 * rpmb (3), and up to 4 addition general-purpose partitions (4-7).
 *
 * @dev_num:	Block device number (struct blk_desc->dev value)
 * @hwpart:	Hardware partition number to select. 0 means the raw device,
 *		1 is the first partition, 2 is the second, etc.
 * @return 0 if OK, other value for an error
 */
int mmc_select_hwpart(int dev_num, int hwpart);
struct blk_desc *systemace_get_dev(int dev);
struct blk_desc *mg_disk_get_dev(int dev);
struct blk_desc *host_get_dev(int dev);
int host_get_dev_err(int dev, struct blk_desc **blk_devp);

/* disk/part.c */
int get_partition_info(struct blk_desc *dev_desc, int part,
		       disk_partition_t *info);
void print_part(struct blk_desc *dev_desc);
void init_part(struct blk_desc *dev_desc);
void dev_print(struct blk_desc *dev_desc);
int get_device(const char *ifname, const char *dev_str,
	       struct blk_desc **dev_desc);
int get_device_and_partition(const char *ifname, const char *dev_part_str,
			     struct blk_desc **dev_desc,
			     disk_partition_t *info, int allow_whole_dev);
#else
static inline struct blk_desc *blk_get_dev(const char *ifname, int dev)
{ return NULL; }
static inline struct blk_desc *ide_get_dev(int dev) { return NULL; }
static inline struct blk_desc *sata_get_dev(int dev) { return NULL; }
static inline struct blk_desc *scsi_get_dev(int dev) { return NULL; }
static inline struct blk_desc *usb_stor_get_dev(int dev) { return NULL; }
static inline struct blk_desc *mmc_get_dev(int dev) { return NULL; }
static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; }
static inline struct blk_desc *systemace_get_dev(int dev) { return NULL; }
static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; }
static inline struct blk_desc *host_get_dev(int dev) { return NULL; }

static inline int get_partition_info(struct blk_desc *dev_desc, int part,
				     disk_partition_t *info) { return -1; }
static inline void print_part(struct blk_desc *dev_desc) {}
static inline void init_part(struct blk_desc *dev_desc) {}
static inline void dev_print(struct blk_desc *dev_desc) {}
static inline int get_device(const char *ifname, const char *dev_str,
			     struct blk_desc **dev_desc)
{ return -1; }
static inline int get_device_and_partition(const char *ifname,
					   const char *dev_part_str,
					   struct blk_desc **dev_desc,
					   disk_partition_t *info,
					   int allow_whole_dev)
{ *dev_desc = NULL; return -1; }
#endif

#ifdef CONFIG_MAC_PARTITION
/* disk/part_mac.c */
int get_partition_info_mac(struct blk_desc *dev_desc, int part,
			   disk_partition_t *info);
void print_part_mac(struct blk_desc *dev_desc);
int test_part_mac(struct blk_desc *dev_desc);
#endif

#ifdef CONFIG_DOS_PARTITION
/* disk/part_dos.c */
int get_partition_info_dos(struct blk_desc *dev_desc, int part,
			   disk_partition_t *info);
void print_part_dos(struct blk_desc *dev_desc);
int test_part_dos(struct blk_desc *dev_desc);
#endif

#ifdef CONFIG_ISO_PARTITION
/* disk/part_iso.c */
int get_partition_info_iso(struct blk_desc *dev_desc, int part,
			   disk_partition_t *info);
void print_part_iso(struct blk_desc *dev_desc);
int test_part_iso(struct blk_desc *dev_desc);
#endif

#ifdef CONFIG_AMIGA_PARTITION
/* disk/part_amiga.c */
int get_partition_info_amiga(struct blk_desc *dev_desc, int part,
			     disk_partition_t *info);
void print_part_amiga(struct blk_desc *dev_desc);
int test_part_amiga(struct blk_desc *dev_desc);
#endif

#ifdef CONFIG_EFI_PARTITION
#include <part_efi.h>
/* disk/part_efi.c */
int get_partition_info_efi(struct blk_desc *dev_desc, int part,
			   disk_partition_t *info);
/**
 * get_partition_info_efi_by_name() - Find the specified GPT partition table entry
 *
 * @param dev_desc - block device descriptor
 * @param gpt_name - the specified table entry name
 * @param info - returns the disk partition info
 *
 * @return - '0' on match, '-1' on no match, otherwise error
 */
int get_partition_info_efi_by_name(struct blk_desc *dev_desc,
	const char *name, disk_partition_t *info);
void print_part_efi(struct blk_desc *dev_desc);
int test_part_efi(struct blk_desc *dev_desc);

/**
 * write_gpt_table() - Write the GUID Partition Table to disk
 *
 * @param dev_desc - block device descriptor
 * @param gpt_h - pointer to GPT header representation
 * @param gpt_e - pointer to GPT partition table entries
 *
 * @return - zero on success, otherwise error
 */
int write_gpt_table(struct blk_desc *dev_desc,
		  gpt_header *gpt_h, gpt_entry *gpt_e);

/**
 * gpt_fill_pte(): Fill the GPT partition table entry
 *
 * @param gpt_h - GPT header representation
 * @param gpt_e - GPT partition table entries
 * @param partitions - list of partitions
 * @param parts - number of partitions
 *
 * @return zero on success
 */
int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
		disk_partition_t *partitions, int parts);

/**
 * gpt_fill_header(): Fill the GPT header
 *
 * @param dev_desc - block device descriptor
 * @param gpt_h - GPT header representation
 * @param str_guid - disk guid string representation
 * @param parts_count - number of partitions
 *
 * @return - error on str_guid conversion error
 */
int gpt_fill_header(struct blk_desc *dev_desc, gpt_header *gpt_h,
		char *str_guid, int parts_count);

/**
 * gpt_restore(): Restore GPT partition table
 *
 * @param dev_desc - block device descriptor
 * @param str_disk_guid - disk GUID
 * @param partitions - list of partitions
 * @param parts - number of partitions
 *
 * @return zero on success
 */
int gpt_restore(struct blk_desc *dev_desc, char *str_disk_guid,
		disk_partition_t *partitions, const int parts_count);

/**
 * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid
 *
 * @param dev_desc - block device descriptor
 * @param buf - buffer which contains the MBR and Primary GPT info
 *
 * @return - '0' on success, otherwise error
 */
int is_valid_gpt_buf(struct blk_desc *dev_desc, void *buf);

/**
 * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT
 *
 * @param dev_desc - block device descriptor
 * @param buf - buffer which contains the MBR and Primary GPT info
 *
 * @return - '0' on success, otherwise error
 */
int write_mbr_and_gpt_partitions(struct blk_desc *dev_desc, void *buf);

/**
 * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header
 *                        and partition table entries (PTE)
 *
 * As a side effect if sets gpt_head and gpt_pte so they point to GPT data.
 *
 * @param dev_desc - block device descriptor
 * @param gpt_head - pointer to GPT header data read from medium
 * @param gpt_pte - pointer to GPT partition table enties read from medium
 *
 * @return - '0' on success, otherwise error
 */
int gpt_verify_headers(struct blk_desc *dev_desc, gpt_header *gpt_head,
		       gpt_entry **gpt_pte);

/**
 * gpt_verify_partitions() - Function to check if partitions' name, start and
 *                           size correspond to '$partitions' env variable
 *
 * This function checks if on medium stored GPT data is in sync with information
 * provided in '$partitions' environment variable. Specificially, name, start
 * and size of the partition is checked.
 *
 * @param dev_desc - block device descriptor
 * @param partitions - partition data read from '$partitions' env variable
 * @param parts - number of partitions read from '$partitions' env variable
 * @param gpt_head - pointer to GPT header data read from medium
 * @param gpt_pte - pointer to GPT partition table enties read from medium
 *
 * @return - '0' on success, otherwise error
 */
int gpt_verify_partitions(struct blk_desc *dev_desc,
			  disk_partition_t *partitions, int parts,
			  gpt_header *gpt_head, gpt_entry **gpt_pte);
#endif

#endif /* _PART_H */
Commit	Line	Data
012771d8	1	/*
42dfe7a1	2	* (C) Copyright 2000-2004
012771d8 WD	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
012771d8 WD	4	*
3765b3e7	5	* SPDX-License-Identifier: GPL-2.0+
012771d8 WD	6	*/
	7	#ifndef _PART_H
	8	#define _PART_H
735dd97b	9
1a73661b	10	#include <blk.h>
6e592385	11	#include <ide.h>
012771d8	12
0472fbfd EE	13	#define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
	14	((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
	15	((x & 0xffff0000) ? 16 : 0))
	16	#define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))
ae1768a7	17
012771d8	18	/* Part types */
42dfe7a1	19	#define PART_TYPE_UNKNOWN 0x00
012771d8 WD	20	#define PART_TYPE_MAC 0x01
	21	#define PART_TYPE_DOS 0x02
	22	#define PART_TYPE_ISO 0x03
42dfe7a1	23	#define PART_TYPE_AMIGA 0x04
07f3d789	24	#define PART_TYPE_EFI 0x05
c7de829c	25
b0fce99b WD	26	/*
	27	* Type string for U-Boot bootable partitions
	28	*/
	29	#define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */
	30	#define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */
	31
012771d8	32	/* device types */
b0fce99b WD	33	#define DEV_TYPE_UNKNOWN 0xff /* not connected */
b0fce99b WD	34	#define DEV_TYPE_HARDDISK 0x00 /* harddisk */
42dfe7a1 WD	35	#define DEV_TYPE_TAPE 0x01 /* Tape */
	36	#define DEV_TYPE_CDROM 0x05 /* CD-ROM */
	37	#define DEV_TYPE_OPDISK 0x07 /* optical disk */
012771d8	38
42dfe7a1	39	typedef struct disk_partition {
04735e9c FL	40	lbaint_t start; /* # of first block in partition */
04735e9c FL	41	lbaint_t size; /* number of blocks in partition */
012771d8 WD	42	ulong blksz; /* block size in bytes */
	43	uchar name[32]; /* partition name */
	44	uchar type[32]; /* string type description */
40e0e568	45	int bootable; /* Active/Bootable flag is set */
894bfbbf SW	46	#ifdef CONFIG_PARTITION_UUIDS
	47	char uuid[37]; /* filesystem UUID as string, if exists */
	48	#endif
7561b258 PD	49	#ifdef CONFIG_PARTITION_TYPE_GUID
	50	char type_guid[37]; /* type GUID as string, if exists */
	51	#endif
012771d8 WD	52	} disk_partition_t;
012771d8 WD	53
735dd97b	54	/* Misc _get_dev functions */
df3fc526	55	#ifdef CONFIG_PARTITIONS
fb1b7be9	56	/**
db1d9e78	57	* blk_get_dev() - get a pointer to a block device given its type and number
fb1b7be9 SG	58	*
	59	* Each interface allocates its own devices and typically struct blk_desc is
	60	* contained with the interface's data structure. There is no global
	61	* numbering for block devices, so the interface name must be provided.
	62	*
	63	* @ifname: Interface name (e.g. "ide", "scsi")
	64	* @dev: Device number (0 for first device on that interface, 1 for
	65	* second, etc.
	66	* @return pointer to the block device, or NULL if not available, or an
	67	* error occurred.
	68	*/
db1d9e78	69	struct blk_desc blk_get_dev(const char ifname, int dev);
4101f687 SG	70	struct blk_desc *ide_get_dev(int dev);
	71	struct blk_desc *sata_get_dev(int dev);
	72	struct blk_desc *scsi_get_dev(int dev);
	73	struct blk_desc *usb_stor_get_dev(int dev);
	74	struct blk_desc *mmc_get_dev(int dev);
fb1b7be9 SG	75
	76	/**
	77	* mmc_select_hwpart() - Select the MMC hardware partiion on an MMC device
	78	*
	79	* MMC devices can support partitioning at the hardware level. This is quite
	80	* separate from the normal idea of software-based partitions. MMC hardware
	81	* partitions must be explicitly selected. Once selected only the region of
	82	* the device covered by that partition is accessible.
	83	*
	84	* The MMC standard provides for two boot partitions (numbered 1 and 2),
	85	* rpmb (3), and up to 4 addition general-purpose partitions (4-7).
	86	*
	87	* @dev_num: Block device number (struct blk_desc->dev value)
	88	* @hwpart: Hardware partition number to select. 0 means the raw device,
	89	* 1 is the first partition, 2 is the second, etc.
	90	* @return 0 if OK, other value for an error
	91	*/
d2356284	92	int mmc_select_hwpart(int dev_num, int hwpart);
4101f687 SG	93	struct blk_desc *systemace_get_dev(int dev);
	94	struct blk_desc *mg_disk_get_dev(int dev);
	95	struct blk_desc *host_get_dev(int dev);
	96	int host_get_dev_err(int dev, struct blk_desc **blk_devp);
735dd97b	97
012771d8	98	/* disk/part.c */
4101f687 SG	99	int get_partition_info(struct blk_desc *dev_desc, int part,
	100	disk_partition_t *info);
	101	void print_part(struct blk_desc *dev_desc);
	102	void init_part(struct blk_desc *dev_desc);
	103	void dev_print(struct blk_desc *dev_desc);
2023e608	104	int get_device(const char ifname, const char dev_str,
4101f687	105	struct blk_desc **dev_desc);
10a37fd7	106	int get_device_and_partition(const char ifname, const char dev_part_str,
4101f687	107	struct blk_desc **dev_desc,
10a37fd7	108	disk_partition_t *info, int allow_whole_dev);
df3fc526	109	#else
db1d9e78	110	static inline struct blk_desc blk_get_dev(const char ifname, int dev)
99d2c205	111	{ return NULL; }
4101f687 SG	112	static inline struct blk_desc *ide_get_dev(int dev) { return NULL; }
	113	static inline struct blk_desc *sata_get_dev(int dev) { return NULL; }
	114	static inline struct blk_desc *scsi_get_dev(int dev) { return NULL; }
	115	static inline struct blk_desc *usb_stor_get_dev(int dev) { return NULL; }
	116	static inline struct blk_desc *mmc_get_dev(int dev) { return NULL; }
d2356284	117	static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; }
4101f687 SG	118	static inline struct blk_desc *systemace_get_dev(int dev) { return NULL; }
	119	static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; }
	120	static inline struct blk_desc *host_get_dev(int dev) { return NULL; }
012771d8	121
4101f687 SG	122	static inline int get_partition_info(struct blk_desc *dev_desc, int part,
	123	disk_partition_t *info) { return -1; }
	124	static inline void print_part(struct blk_desc *dev_desc) {}
	125	static inline void init_part(struct blk_desc *dev_desc) {}
	126	static inline void dev_print(struct blk_desc *dev_desc) {}
2023e608	127	static inline int get_device(const char ifname, const char dev_str,
4101f687	128	struct blk_desc **dev_desc)
2023e608	129	{ return -1; }
99d2c205	130	static inline int get_device_and_partition(const char *ifname,
10a37fd7	131	const char *dev_part_str,
4101f687	132	struct blk_desc **dev_desc,
10a37fd7 SW	133	disk_partition_t *info,
10a37fd7 SW	134	int allow_whole_dev)
99d2c205	135	{ *dev_desc = NULL; return -1; }
df3fc526	136	#endif
012771d8 WD	137
	138	#ifdef CONFIG_MAC_PARTITION
	139	/* disk/part_mac.c */
4101f687 SG	140	int get_partition_info_mac(struct blk_desc *dev_desc, int part,
	141	disk_partition_t *info);
	142	void print_part_mac(struct blk_desc *dev_desc);
	143	int test_part_mac(struct blk_desc *dev_desc);
012771d8 WD	144	#endif
	145
	146	#ifdef CONFIG_DOS_PARTITION
	147	/* disk/part_dos.c */
4101f687 SG	148	int get_partition_info_dos(struct blk_desc *dev_desc, int part,
	149	disk_partition_t *info);
	150	void print_part_dos(struct blk_desc *dev_desc);
	151	int test_part_dos(struct blk_desc *dev_desc);
012771d8 WD	152	#endif
	153
	154	#ifdef CONFIG_ISO_PARTITION
	155	/* disk/part_iso.c */
4101f687 SG	156	int get_partition_info_iso(struct blk_desc *dev_desc, int part,
	157	disk_partition_t *info);
	158	void print_part_iso(struct blk_desc *dev_desc);
	159	int test_part_iso(struct blk_desc *dev_desc);
012771d8 WD	160	#endif
012771d8 WD	161
c7de829c WD	162	#ifdef CONFIG_AMIGA_PARTITION
c7de829c WD	163	/* disk/part_amiga.c */
4101f687 SG	164	int get_partition_info_amiga(struct blk_desc *dev_desc, int part,
	165	disk_partition_t *info);
	166	void print_part_amiga(struct blk_desc *dev_desc);
	167	int test_part_amiga(struct blk_desc *dev_desc);
c7de829c WD	168	#endif
c7de829c WD	169
07f3d789	170	#ifdef CONFIG_EFI_PARTITION
40684ddb	171	#include <part_efi.h>
07f3d789	172	/* disk/part_efi.c */
4101f687 SG	173	int get_partition_info_efi(struct blk_desc *dev_desc, int part,
4101f687 SG	174	disk_partition_t *info);
60bf9416 SR	175	/**
	176	* get_partition_info_efi_by_name() - Find the specified GPT partition table entry
	177	*
	178	* @param dev_desc - block device descriptor
	179	* @param gpt_name - the specified table entry name
	180	* @param info - returns the disk partition info
	181	*
	182	* @return - '0' on match, '-1' on no match, otherwise error
	183	*/
4101f687	184	int get_partition_info_efi_by_name(struct blk_desc *dev_desc,
60bf9416	185	const char name, disk_partition_t info);
4101f687 SG	186	void print_part_efi(struct blk_desc *dev_desc);
4101f687 SG	187	int test_part_efi(struct blk_desc *dev_desc);
40684ddb ŁM	188
	189	/**
	190	* write_gpt_table() - Write the GUID Partition Table to disk
	191	*
	192	* @param dev_desc - block device descriptor
	193	* @param gpt_h - pointer to GPT header representation
	194	* @param gpt_e - pointer to GPT partition table entries
	195	*
	196	* @return - zero on success, otherwise error
	197	*/
4101f687	198	int write_gpt_table(struct blk_desc *dev_desc,
40684ddb ŁM	199	gpt_header gpt_h, gpt_entry gpt_e);
	200
	201	/**
	202	* gpt_fill_pte(): Fill the GPT partition table entry
	203	*
	204	* @param gpt_h - GPT header representation
	205	* @param gpt_e - GPT partition table entries
	206	* @param partitions - list of partitions
	207	* @param parts - number of partitions
	208	*
	209	* @return zero on success
	210	*/
	211	int gpt_fill_pte(gpt_header gpt_h, gpt_entry gpt_e,
	212	disk_partition_t *partitions, int parts);
	213
	214	/**
	215	* gpt_fill_header(): Fill the GPT header
	216	*
	217	* @param dev_desc - block device descriptor
	218	* @param gpt_h - GPT header representation
	219	* @param str_guid - disk guid string representation
	220	* @param parts_count - number of partitions
	221	*
	222	* @return - error on str_guid conversion error
	223	*/
4101f687	224	int gpt_fill_header(struct blk_desc dev_desc, gpt_header gpt_h,
40684ddb ŁM	225	char *str_guid, int parts_count);
	226
	227	/**
	228	* gpt_restore(): Restore GPT partition table
	229	*
	230	* @param dev_desc - block device descriptor
	231	* @param str_disk_guid - disk GUID
	232	* @param partitions - list of partitions
	233	* @param parts - number of partitions
	234	*
	235	* @return zero on success
	236	*/
4101f687	237	int gpt_restore(struct blk_desc dev_desc, char str_disk_guid,
40684ddb	238	disk_partition_t *partitions, const int parts_count);
0ff7e585 SR	239
	240	/**
	241	* is_valid_gpt_buf() - Ensure that the Primary GPT information is valid
	242	*
	243	* @param dev_desc - block device descriptor
	244	* @param buf - buffer which contains the MBR and Primary GPT info
	245	*
	246	* @return - '0' on success, otherwise error
	247	*/
4101f687	248	int is_valid_gpt_buf(struct blk_desc dev_desc, void buf);
0ff7e585 SR	249
	250	/**
	251	* write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT
	252	*
	253	* @param dev_desc - block device descriptor
	254	* @param buf - buffer which contains the MBR and Primary GPT info
	255	*
	256	* @return - '0' on success, otherwise error
	257	*/
4101f687	258	int write_mbr_and_gpt_partitions(struct blk_desc dev_desc, void buf);
cef68bf9 LM	259
	260	/**
	261	* gpt_verify_headers() - Function to read and CRC32 check of the GPT's header
	262	* and partition table entries (PTE)
	263	*
	264	* As a side effect if sets gpt_head and gpt_pte so they point to GPT data.
	265	*
	266	* @param dev_desc - block device descriptor
	267	* @param gpt_head - pointer to GPT header data read from medium
	268	* @param gpt_pte - pointer to GPT partition table enties read from medium
	269	*
	270	* @return - '0' on success, otherwise error
	271	*/
4101f687	272	int gpt_verify_headers(struct blk_desc dev_desc, gpt_header gpt_head,
cef68bf9 LM	273	gpt_entry **gpt_pte);
	274
	275	/**
	276	* gpt_verify_partitions() - Function to check if partitions' name, start and
	277	* size correspond to '$partitions' env variable
	278	*
	279	* This function checks if on medium stored GPT data is in sync with information
	280	* provided in '$partitions' environment variable. Specificially, name, start
	281	* and size of the partition is checked.
	282	*
	283	* @param dev_desc - block device descriptor
	284	* @param partitions - partition data read from '$partitions' env variable
	285	* @param parts - number of partitions read from '$partitions' env variable
	286	* @param gpt_head - pointer to GPT header data read from medium
	287	* @param gpt_pte - pointer to GPT partition table enties read from medium
	288	*
	289	* @return - '0' on success, otherwise error
	290	*/
4101f687	291	int gpt_verify_partitions(struct blk_desc *dev_desc,
cef68bf9 LM	292	disk_partition_t *partitions, int parts,
cef68bf9 LM	293	gpt_header gpt_head, gpt_entry *gpt_pte);
07f3d789	294	#endif
07f3d789	295
012771d8	296	#endif /* _PART_H */