[thirdparty/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 <ide.h>

struct blk_desc {
	int		if_type;	/* type of the interface */
	int		dev;		/* device number */
	unsigned char	part_type;	/* partition type */
	unsigned char	target;		/* target SCSI ID */
	unsigned char	lun;		/* target LUN */
	unsigned char	hwpart;		/* HW partition, e.g. for eMMC */
	unsigned char	type;		/* device type */
	unsigned char	removable;	/* removable device */
#ifdef CONFIG_LBA48
	unsigned char	lba48;		/* device can use 48bit addr (ATA/ATAPI v7) */
#endif
	lbaint_t	lba;		/* number of blocks */
	unsigned long	blksz;		/* block size */
	int		log2blksz;	/* for convenience: log2(blksz) */
	char		vendor [40+1];	/* IDE model, SCSI Vendor */
	char		product[20+1];	/* IDE Serial no, SCSI product */
	char		revision[8+1];	/* firmware revision */
	unsigned long	(*block_read)(struct blk_desc *block_dev,
				      lbaint_t start,
				      lbaint_t blkcnt,
				      void *buffer);
	unsigned long	(*block_write)(struct blk_desc *block_dev,
				       lbaint_t start,
				       lbaint_t blkcnt,
				       const void *buffer);
	unsigned long	(*block_erase)(struct blk_desc *block_dev,
				       lbaint_t start,
				       lbaint_t blkcnt);
	void		*priv;		/* driver private struct pointer */
};

#define BLOCK_CNT(size, blk_desc) (PAD_COUNT(size, blk_desc->blksz))
#define PAD_TO_BLOCKSIZE(size, blk_desc) \
	(PAD_SIZE(size, blk_desc->blksz))
#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))

/* Interface types: */
#define IF_TYPE_UNKNOWN		0
#define IF_TYPE_IDE		1
#define IF_TYPE_SCSI		2
#define IF_TYPE_ATAPI		3
#define IF_TYPE_USB		4
#define IF_TYPE_DOC		5
#define IF_TYPE_MMC		6
#define IF_TYPE_SD		7
#define IF_TYPE_SATA		8
#define IF_TYPE_HOST		9
#define IF_TYPE_MAX		10	/* Max number of IF_TYPE_* supported */

/* 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
struct blk_desc *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);
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 *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
6e592385	10	#include <ide.h>
012771d8	11
4101f687	12	struct blk_desc {
42dfe7a1	13	int if_type; /* type of the interface */
d049cc7f WD	14	int dev; /* device number */
d049cc7f WD	15	unsigned char part_type; /* partition type */
42dfe7a1 WD	16	unsigned char target; /* target SCSI ID */
42dfe7a1 WD	17	unsigned char lun; /* target LUN */
873cc1d7	18	unsigned char hwpart; /* HW partition, e.g. for eMMC */
42dfe7a1 WD	19	unsigned char type; /* device type */
	20	unsigned char removable; /* removable device */
	21	#ifdef CONFIG_LBA48
	22	unsigned char lba48; /* device can use 48bit addr (ATA/ATAPI v7) */
	23	#endif
985889b1	24	lbaint_t lba; /* number of blocks */
42dfe7a1	25	unsigned long blksz; /* block size */
0472fbfd	26	int log2blksz; /* for convenience: log2(blksz) */
d049cc7f	27	char vendor [40+1]; /* IDE model, SCSI Vendor */
2a4741d9 MZ	28	char product[20+1]; /* IDE Serial no, SCSI product */
2a4741d9 MZ	29	char revision[8+1]; /* firmware revision */
4101f687	30	unsigned long (block_read)(struct blk_desc block_dev,
ff8fef56	31	lbaint_t start,
6e592385	32	lbaint_t blkcnt,
eb867a76	33	void *buffer);
4101f687	34	unsigned long (block_write)(struct blk_desc block_dev,
ff8fef56	35	lbaint_t start,
53758fa2 GL	36	lbaint_t blkcnt,
53758fa2 GL	37	const void *buffer);
4101f687	38	unsigned long (block_erase)(struct blk_desc block_dev,
ff8fef56	39	lbaint_t start,
e6f99a56	40	lbaint_t blkcnt);
c7057b52	41	void priv; / driver private struct pointer */
7c4213f6	42	};
b0fce99b	43
4101f687 SG	44	#define BLOCK_CNT(size, blk_desc) (PAD_COUNT(size, blk_desc->blksz))
	45	#define PAD_TO_BLOCKSIZE(size, blk_desc) \
	46	(PAD_SIZE(size, blk_desc->blksz))
0472fbfd EE	47	#define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
	48	((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
	49	((x & 0xffff0000) ? 16 : 0))
	50	#define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))
ae1768a7	51
012771d8	52	/* Interface types: */
b0fce99b WD	53	#define IF_TYPE_UNKNOWN 0
b0fce99b WD	54	#define IF_TYPE_IDE 1
012771d8 WD	55	#define IF_TYPE_SCSI 2
012771d8 WD	56	#define IF_TYPE_ATAPI 3
b0fce99b WD	57	#define IF_TYPE_USB 4
b0fce99b WD	58	#define IF_TYPE_DOC 5
7205e407	59	#define IF_TYPE_MMC 6
c95219fa	60	#define IF_TYPE_SD 7
c7057b52	61	#define IF_TYPE_SATA 8
f4d8de48 HN	62	#define IF_TYPE_HOST 9
f4d8de48 HN	63	#define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */
b0fce99b	64
012771d8	65	/* Part types */
42dfe7a1	66	#define PART_TYPE_UNKNOWN 0x00
012771d8 WD	67	#define PART_TYPE_MAC 0x01
	68	#define PART_TYPE_DOS 0x02
	69	#define PART_TYPE_ISO 0x03
42dfe7a1	70	#define PART_TYPE_AMIGA 0x04
07f3d789	71	#define PART_TYPE_EFI 0x05
c7de829c	72
b0fce99b WD	73	/*
	74	* Type string for U-Boot bootable partitions
	75	*/
	76	#define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */
	77	#define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */
	78
012771d8	79	/* device types */
b0fce99b WD	80	#define DEV_TYPE_UNKNOWN 0xff /* not connected */
b0fce99b WD	81	#define DEV_TYPE_HARDDISK 0x00 /* harddisk */
42dfe7a1 WD	82	#define DEV_TYPE_TAPE 0x01 /* Tape */
	83	#define DEV_TYPE_CDROM 0x05 /* CD-ROM */
	84	#define DEV_TYPE_OPDISK 0x07 /* optical disk */
012771d8	85
42dfe7a1	86	typedef struct disk_partition {
04735e9c FL	87	lbaint_t start; /* # of first block in partition */
04735e9c FL	88	lbaint_t size; /* number of blocks in partition */
012771d8 WD	89	ulong blksz; /* block size in bytes */
	90	uchar name[32]; /* partition name */
	91	uchar type[32]; /* string type description */
40e0e568	92	int bootable; /* Active/Bootable flag is set */
894bfbbf SW	93	#ifdef CONFIG_PARTITION_UUIDS
	94	char uuid[37]; /* filesystem UUID as string, if exists */
	95	#endif
7561b258 PD	96	#ifdef CONFIG_PARTITION_TYPE_GUID
	97	char type_guid[37]; /* type GUID as string, if exists */
	98	#endif
012771d8 WD	99	} disk_partition_t;
012771d8 WD	100
735dd97b	101	/* Misc _get_dev functions */
df3fc526	102	#ifdef CONFIG_PARTITIONS
4101f687 SG	103	struct blk_desc get_dev(const char ifname, int dev);
	104	struct blk_desc *ide_get_dev(int dev);
	105	struct blk_desc *sata_get_dev(int dev);
	106	struct blk_desc *scsi_get_dev(int dev);
	107	struct blk_desc *usb_stor_get_dev(int dev);
	108	struct blk_desc *mmc_get_dev(int dev);
d2356284	109	int mmc_select_hwpart(int dev_num, int hwpart);
4101f687 SG	110	struct blk_desc *systemace_get_dev(int dev);
	111	struct blk_desc *mg_disk_get_dev(int dev);
	112	struct blk_desc *host_get_dev(int dev);
	113	int host_get_dev_err(int dev, struct blk_desc **blk_devp);
735dd97b	114
012771d8	115	/* disk/part.c */
4101f687 SG	116	int get_partition_info(struct blk_desc *dev_desc, int part,
	117	disk_partition_t *info);
	118	void print_part(struct blk_desc *dev_desc);
	119	void init_part(struct blk_desc *dev_desc);
	120	void dev_print(struct blk_desc *dev_desc);
2023e608	121	int get_device(const char ifname, const char dev_str,
4101f687	122	struct blk_desc **dev_desc);
10a37fd7	123	int get_device_and_partition(const char ifname, const char dev_part_str,
4101f687	124	struct blk_desc **dev_desc,
10a37fd7	125	disk_partition_t *info, int allow_whole_dev);
df3fc526	126	#else
4101f687	127	static inline struct blk_desc get_dev(const char ifname, int dev)
99d2c205	128	{ return NULL; }
4101f687 SG	129	static inline struct blk_desc *ide_get_dev(int dev) { return NULL; }
	130	static inline struct blk_desc *sata_get_dev(int dev) { return NULL; }
	131	static inline struct blk_desc *scsi_get_dev(int dev) { return NULL; }
	132	static inline struct blk_desc *usb_stor_get_dev(int dev) { return NULL; }
	133	static inline struct blk_desc *mmc_get_dev(int dev) { return NULL; }
d2356284	134	static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; }
4101f687 SG	135	static inline struct blk_desc *systemace_get_dev(int dev) { return NULL; }
	136	static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; }
	137	static inline struct blk_desc *host_get_dev(int dev) { return NULL; }
012771d8	138
4101f687 SG	139	static inline int get_partition_info(struct blk_desc *dev_desc, int part,
	140	disk_partition_t *info) { return -1; }
	141	static inline void print_part(struct blk_desc *dev_desc) {}
	142	static inline void init_part(struct blk_desc *dev_desc) {}
	143	static inline void dev_print(struct blk_desc *dev_desc) {}
2023e608	144	static inline int get_device(const char ifname, const char dev_str,
4101f687	145	struct blk_desc **dev_desc)
2023e608	146	{ return -1; }
99d2c205	147	static inline int get_device_and_partition(const char *ifname,
10a37fd7	148	const char *dev_part_str,
4101f687	149	struct blk_desc **dev_desc,
10a37fd7 SW	150	disk_partition_t *info,
10a37fd7 SW	151	int allow_whole_dev)
99d2c205	152	{ *dev_desc = NULL; return -1; }
df3fc526	153	#endif
012771d8 WD	154
	155	#ifdef CONFIG_MAC_PARTITION
	156	/* disk/part_mac.c */
4101f687 SG	157	int get_partition_info_mac(struct blk_desc *dev_desc, int part,
	158	disk_partition_t *info);
	159	void print_part_mac(struct blk_desc *dev_desc);
	160	int test_part_mac(struct blk_desc *dev_desc);
012771d8 WD	161	#endif
	162
	163	#ifdef CONFIG_DOS_PARTITION
	164	/* disk/part_dos.c */
4101f687 SG	165	int get_partition_info_dos(struct blk_desc *dev_desc, int part,
	166	disk_partition_t *info);
	167	void print_part_dos(struct blk_desc *dev_desc);
	168	int test_part_dos(struct blk_desc *dev_desc);
012771d8 WD	169	#endif
	170
	171	#ifdef CONFIG_ISO_PARTITION
	172	/* disk/part_iso.c */
4101f687 SG	173	int get_partition_info_iso(struct blk_desc *dev_desc, int part,
	174	disk_partition_t *info);
	175	void print_part_iso(struct blk_desc *dev_desc);
	176	int test_part_iso(struct blk_desc *dev_desc);
012771d8 WD	177	#endif
012771d8 WD	178
c7de829c WD	179	#ifdef CONFIG_AMIGA_PARTITION
c7de829c WD	180	/* disk/part_amiga.c */
4101f687 SG	181	int get_partition_info_amiga(struct blk_desc *dev_desc, int part,
	182	disk_partition_t *info);
	183	void print_part_amiga(struct blk_desc *dev_desc);
	184	int test_part_amiga(struct blk_desc *dev_desc);
c7de829c WD	185	#endif
c7de829c WD	186
07f3d789	187	#ifdef CONFIG_EFI_PARTITION
40684ddb	188	#include <part_efi.h>
07f3d789	189	/* disk/part_efi.c */
4101f687 SG	190	int get_partition_info_efi(struct blk_desc *dev_desc, int part,
4101f687 SG	191	disk_partition_t *info);
60bf9416 SR	192	/**
	193	* get_partition_info_efi_by_name() - Find the specified GPT partition table entry
	194	*
	195	* @param dev_desc - block device descriptor
	196	* @param gpt_name - the specified table entry name
	197	* @param info - returns the disk partition info
	198	*
	199	* @return - '0' on match, '-1' on no match, otherwise error
	200	*/
4101f687	201	int get_partition_info_efi_by_name(struct blk_desc *dev_desc,
60bf9416	202	const char name, disk_partition_t info);
4101f687 SG	203	void print_part_efi(struct blk_desc *dev_desc);
4101f687 SG	204	int test_part_efi(struct blk_desc *dev_desc);
40684ddb ŁM	205
	206	/**
	207	* write_gpt_table() - Write the GUID Partition Table to disk
	208	*
	209	* @param dev_desc - block device descriptor
	210	* @param gpt_h - pointer to GPT header representation
	211	* @param gpt_e - pointer to GPT partition table entries
	212	*
	213	* @return - zero on success, otherwise error
	214	*/
4101f687	215	int write_gpt_table(struct blk_desc *dev_desc,
40684ddb ŁM	216	gpt_header gpt_h, gpt_entry gpt_e);
	217
	218	/**
	219	* gpt_fill_pte(): Fill the GPT partition table entry
	220	*
	221	* @param gpt_h - GPT header representation
	222	* @param gpt_e - GPT partition table entries
	223	* @param partitions - list of partitions
	224	* @param parts - number of partitions
	225	*
	226	* @return zero on success
	227	*/
	228	int gpt_fill_pte(gpt_header gpt_h, gpt_entry gpt_e,
	229	disk_partition_t *partitions, int parts);
	230
	231	/**
	232	* gpt_fill_header(): Fill the GPT header
	233	*
	234	* @param dev_desc - block device descriptor
	235	* @param gpt_h - GPT header representation
	236	* @param str_guid - disk guid string representation
	237	* @param parts_count - number of partitions
	238	*
	239	* @return - error on str_guid conversion error
	240	*/
4101f687	241	int gpt_fill_header(struct blk_desc dev_desc, gpt_header gpt_h,
40684ddb ŁM	242	char *str_guid, int parts_count);
	243
	244	/**
	245	* gpt_restore(): Restore GPT partition table
	246	*
	247	* @param dev_desc - block device descriptor
	248	* @param str_disk_guid - disk GUID
	249	* @param partitions - list of partitions
	250	* @param parts - number of partitions
	251	*
	252	* @return zero on success
	253	*/
4101f687	254	int gpt_restore(struct blk_desc dev_desc, char str_disk_guid,
40684ddb	255	disk_partition_t *partitions, const int parts_count);
0ff7e585 SR	256
	257	/**
	258	* is_valid_gpt_buf() - Ensure that the Primary GPT information is valid
	259	*
	260	* @param dev_desc - block device descriptor
	261	* @param buf - buffer which contains the MBR and Primary GPT info
	262	*
	263	* @return - '0' on success, otherwise error
	264	*/
4101f687	265	int is_valid_gpt_buf(struct blk_desc dev_desc, void buf);
0ff7e585 SR	266
	267	/**
	268	* write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT
	269	*
	270	* @param dev_desc - block device descriptor
	271	* @param buf - buffer which contains the MBR and Primary GPT info
	272	*
	273	* @return - '0' on success, otherwise error
	274	*/
4101f687	275	int write_mbr_and_gpt_partitions(struct blk_desc dev_desc, void buf);
cef68bf9 LM	276
	277	/**
	278	* gpt_verify_headers() - Function to read and CRC32 check of the GPT's header
	279	* and partition table entries (PTE)
	280	*
	281	* As a side effect if sets gpt_head and gpt_pte so they point to GPT data.
	282	*
	283	* @param dev_desc - block device descriptor
	284	* @param gpt_head - pointer to GPT header data read from medium
	285	* @param gpt_pte - pointer to GPT partition table enties read from medium
	286	*
	287	* @return - '0' on success, otherwise error
	288	*/
4101f687	289	int gpt_verify_headers(struct blk_desc dev_desc, gpt_header gpt_head,
cef68bf9 LM	290	gpt_entry **gpt_pte);
	291
	292	/**
	293	* gpt_verify_partitions() - Function to check if partitions' name, start and
	294	* size correspond to '$partitions' env variable
	295	*
	296	* This function checks if on medium stored GPT data is in sync with information
	297	* provided in '$partitions' environment variable. Specificially, name, start
	298	* and size of the partition is checked.
	299	*
	300	* @param dev_desc - block device descriptor
	301	* @param partitions - partition data read from '$partitions' env variable
	302	* @param parts - number of partitions read from '$partitions' env variable
	303	* @param gpt_head - pointer to GPT header data read from medium
	304	* @param gpt_pte - pointer to GPT partition table enties read from medium
	305	*
	306	* @return - '0' on success, otherwise error
	307	*/
4101f687	308	int gpt_verify_partitions(struct blk_desc *dev_desc,
cef68bf9 LM	309	disk_partition_t *partitions, int parts,
cef68bf9 LM	310	gpt_header gpt_head, gpt_entry *gpt_pte);
07f3d789	311	#endif
07f3d789	312
012771d8	313	#endif /* _PART_H */