[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>

struct block_drvr {
	char *name;
	struct blk_desc* (*get_dev)(int dev);
	int (*select_hwpart)(int dev_num, int hwpart);
};

#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);

/**
 * 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 *mg_disk_get_dev(int dev);
int host_get_dev_err(int dev, struct blk_desc **blk_devp);

/* disk/part.c */
int part_get_info(struct blk_desc *dev_desc, int part, disk_partition_t *info);
void part_print(struct blk_desc *dev_desc);
void part_init(struct blk_desc *dev_desc);
void dev_print(struct blk_desc *dev_desc);

/**
 * blk_get_device_by_str() - Get a block device given its interface/hw partition
 *
 * 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.
 *
 * The hardware parition is not related to the normal software partitioning
 * of a device - each hardware partition is effectively a separately
 * accessible block device. When a hardware parition is selected on MMC the
 * other hardware partitions become inaccessible. The same block device is
 * used to access all hardware partitions, but its capacity may change when a
 * different hardware partition is selected.
 *
 * When a hardware partition number is given, the block device switches to
 * that hardware partition.
 *
 * @ifname:	Interface name (e.g. "ide", "scsi")
 * @dev_str:	Device and optional hw partition. This can either be a string
 *		containing the device number (e.g. "2") or the device number
 *		and hardware partition number (e.g. "2.4") for devices that
 *		support it (currently only MMC).
 * @dev_desc:	Returns a pointer to the block device on success
 * @return block device number (local to the interface), or -1 on error
 */
int blk_get_device_by_str(const char *ifname, const char *dev_str,
			  struct blk_desc **dev_desc);

/**
 * blk_get_device_part_str() - Get a block device and partition
 *
 * This calls blk_get_device_by_str() to look up a device. It also looks up
 * a partition and returns information about it.
 *
 * @dev_part_str is in the format:
 *	<dev>.<hw_part>:<part> where <dev> is the device number,
 *	<hw_part> is the optional hardware partition number and
 *	<part> is the partition number
 *
 * If ifname is "hostfs" then this function returns the sandbox host block
 * device.
 *
 * If ifname is ubi, then this function returns 0, with @info set to a
 * special UBI device.
 *
 * If @dev_part_str is NULL or empty or "-", then this function looks up
 * the "bootdevice" environment variable and uses that string instead.
 *
 * If the partition string is empty then the first partition is used. If the
 * partition string is "auto" then the first bootable partition is used.
 *
 * @ifname:	Interface name (e.g. "ide", "scsi")
 * @dev_part_str:	Device and partition string
 * @dev_desc:	Returns a pointer to the block device on success
 * @info:	Returns partition information
 * @allow_whole_dev:	true to allow the user to select partition 0
 *		(which means the whole device), false to require a valid
 *		partition number >= 1
 * @return partition number, or -1 on error
 *
 */
int blk_get_device_part_str(const char *ifname, const char *dev_part_str,
			    struct blk_desc **dev_desc,
			    disk_partition_t *info, int allow_whole_dev);
extern const struct block_drvr block_drvr[];
#else
static inline struct blk_desc *blk_get_dev(const char *ifname, int dev)
{ return NULL; }
static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; }
static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; }

static inline int part_get_info(struct blk_desc *dev_desc, int part,
				disk_partition_t *info) { return -1; }
static inline void part_print(struct blk_desc *dev_desc) {}
static inline void part_init(struct blk_desc *dev_desc) {}
static inline void dev_print(struct blk_desc *dev_desc) {}
static inline int blk_get_device_by_str(const char *ifname, const char *dev_str,
					struct blk_desc **dev_desc)
{ return -1; }
static inline int blk_get_device_part_str(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

/*
 * We don't support printing partition information in SPL and only support
 * getting partition information in a few cases.
 */
#ifdef CONFIG_SPL_BUILD
# define part_print_ptr(x)	NULL
# if defined(CONFIG_SPL_EXT_SUPPORT) || defined(CONFIG_SPL_FAT_SUPPORT) || \
	defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION)
#  define part_get_info_ptr(x)	x
# else
#  define part_get_info_ptr(x)	NULL
# endif
#else
#define part_print_ptr(x)	x
#define part_get_info_ptr(x)	x
#endif


struct part_driver {
	const char *name;
	int part_type;

	/**
	 * get_info() - Get information about a partition
	 *
	 * @dev_desc:	Block device descriptor
	 * @part:	Partition number (1 = first)
	 * @info:	Returns partition information
	 */
	int (*get_info)(struct blk_desc *dev_desc, int part,
			disk_partition_t *info);

	/**
	 * print() - Print partition information
	 *
	 * @dev_desc:	Block device descriptor
	 */
	void (*print)(struct blk_desc *dev_desc);

	/**
	 * test() - Test if a device contains this partition type
	 *
	 * @dev_desc:	Block device descriptor
	 * @return 0 if the block device appears to contain this partition
	 *	   type, -ve if not
	 */
	int (*test)(struct blk_desc *dev_desc);
};

/* Declare a new U-Boot partition 'driver' */
#define U_BOOT_PART_TYPE(__name)					\
	ll_entry_declare(struct part_driver, __name, part_driver)

#ifdef CONFIG_EFI_PARTITION
#include <part_efi.h>
/* disk/part_efi.c */
/**
 * part_get_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 part_get_info_efi_by_name(struct blk_desc *dev_desc,
			      const char *name, disk_partition_t *info);

/**
 * 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
d96a9804 AG	13	struct block_drvr {
	14	char *name;
	15	struct blk_desc* (*get_dev)(int dev);
	16	int (*select_hwpart)(int dev_num, int hwpart);
	17	};
	18
0472fbfd EE	19	#define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
	20	((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
	21	((x & 0xffff0000) ? 16 : 0))
	22	#define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))
ae1768a7	23
012771d8	24	/* Part types */
42dfe7a1	25	#define PART_TYPE_UNKNOWN 0x00
012771d8 WD	26	#define PART_TYPE_MAC 0x01
	27	#define PART_TYPE_DOS 0x02
	28	#define PART_TYPE_ISO 0x03
42dfe7a1	29	#define PART_TYPE_AMIGA 0x04
07f3d789	30	#define PART_TYPE_EFI 0x05
c7de829c	31
b0fce99b WD	32	/*
	33	* Type string for U-Boot bootable partitions
	34	*/
	35	#define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */
	36	#define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */
	37
012771d8	38	/* device types */
b0fce99b WD	39	#define DEV_TYPE_UNKNOWN 0xff /* not connected */
b0fce99b WD	40	#define DEV_TYPE_HARDDISK 0x00 /* harddisk */
42dfe7a1 WD	41	#define DEV_TYPE_TAPE 0x01 /* Tape */
	42	#define DEV_TYPE_CDROM 0x05 /* CD-ROM */
	43	#define DEV_TYPE_OPDISK 0x07 /* optical disk */
012771d8	44
42dfe7a1	45	typedef struct disk_partition {
04735e9c FL	46	lbaint_t start; /* # of first block in partition */
04735e9c FL	47	lbaint_t size; /* number of blocks in partition */
012771d8 WD	48	ulong blksz; /* block size in bytes */
	49	uchar name[32]; /* partition name */
	50	uchar type[32]; /* string type description */
40e0e568	51	int bootable; /* Active/Bootable flag is set */
894bfbbf SW	52	#ifdef CONFIG_PARTITION_UUIDS
	53	char uuid[37]; /* filesystem UUID as string, if exists */
	54	#endif
7561b258 PD	55	#ifdef CONFIG_PARTITION_TYPE_GUID
	56	char type_guid[37]; /* type GUID as string, if exists */
	57	#endif
012771d8 WD	58	} disk_partition_t;
012771d8 WD	59
735dd97b	60	/* Misc _get_dev functions */
df3fc526	61	#ifdef CONFIG_PARTITIONS
fb1b7be9	62	/**
db1d9e78	63	* blk_get_dev() - get a pointer to a block device given its type and number
fb1b7be9 SG	64	*
	65	* Each interface allocates its own devices and typically struct blk_desc is
	66	* contained with the interface's data structure. There is no global
	67	* numbering for block devices, so the interface name must be provided.
	68	*
	69	* @ifname: Interface name (e.g. "ide", "scsi")
	70	* @dev: Device number (0 for first device on that interface, 1 for
	71	* second, etc.
	72	* @return pointer to the block device, or NULL if not available, or an
	73	* error occurred.
	74	*/
db1d9e78	75	struct blk_desc blk_get_dev(const char ifname, int dev);
fb1b7be9 SG	76
	77	/**
	78	* mmc_select_hwpart() - Select the MMC hardware partiion on an MMC device
	79	*
	80	* MMC devices can support partitioning at the hardware level. This is quite
	81	* separate from the normal idea of software-based partitions. MMC hardware
	82	* partitions must be explicitly selected. Once selected only the region of
	83	* the device covered by that partition is accessible.
	84	*
	85	* The MMC standard provides for two boot partitions (numbered 1 and 2),
	86	* rpmb (3), and up to 4 addition general-purpose partitions (4-7).
	87	*
	88	* @dev_num: Block device number (struct blk_desc->dev value)
	89	* @hwpart: Hardware partition number to select. 0 means the raw device,
	90	* 1 is the first partition, 2 is the second, etc.
	91	* @return 0 if OK, other value for an error
	92	*/
d2356284	93	int mmc_select_hwpart(int dev_num, int hwpart);
4101f687	94	struct blk_desc *mg_disk_get_dev(int dev);
4101f687	95	int host_get_dev_err(int dev, struct blk_desc **blk_devp);
735dd97b	96
012771d8	97	/* disk/part.c */
3e8bd469 SG	98	int part_get_info(struct blk_desc dev_desc, int part, disk_partition_t info);
	99	void part_print(struct blk_desc *dev_desc);
	100	void part_init(struct blk_desc *dev_desc);
4101f687	101	void dev_print(struct blk_desc *dev_desc);
ebac37cf SG	102
	103	/**
	104	* blk_get_device_by_str() - Get a block device given its interface/hw partition
	105	*
	106	* Each interface allocates its own devices and typically struct blk_desc is
	107	* contained with the interface's data structure. There is no global
	108	* numbering for block devices, so the interface name must be provided.
	109	*
	110	* The hardware parition is not related to the normal software partitioning
	111	* of a device - each hardware partition is effectively a separately
	112	* accessible block device. When a hardware parition is selected on MMC the
	113	* other hardware partitions become inaccessible. The same block device is
	114	* used to access all hardware partitions, but its capacity may change when a
	115	* different hardware partition is selected.
	116	*
	117	* When a hardware partition number is given, the block device switches to
	118	* that hardware partition.
	119	*
	120	* @ifname: Interface name (e.g. "ide", "scsi")
	121	* @dev_str: Device and optional hw partition. This can either be a string
	122	* containing the device number (e.g. "2") or the device number
	123	* and hardware partition number (e.g. "2.4") for devices that
	124	* support it (currently only MMC).
	125	* @dev_desc: Returns a pointer to the block device on success
	126	* @return block device number (local to the interface), or -1 on error
	127	*/
	128	int blk_get_device_by_str(const char ifname, const char dev_str,
	129	struct blk_desc **dev_desc);
e35929e4 SG	130
	131	/**
	132	* blk_get_device_part_str() - Get a block device and partition
	133	*
	134	* This calls blk_get_device_by_str() to look up a device. It also looks up
	135	* a partition and returns information about it.
	136	*
	137	* @dev_part_str is in the format:
	138	* <dev>.<hw_part>:<part> where <dev> is the device number,
	139	* <hw_part> is the optional hardware partition number and
	140	* <part> is the partition number
	141	*
	142	* If ifname is "hostfs" then this function returns the sandbox host block
	143	* device.
	144	*
	145	* If ifname is ubi, then this function returns 0, with @info set to a
	146	* special UBI device.
	147	*
	148	* If @dev_part_str is NULL or empty or "-", then this function looks up
	149	* the "bootdevice" environment variable and uses that string instead.
	150	*
	151	* If the partition string is empty then the first partition is used. If the
	152	* partition string is "auto" then the first bootable partition is used.
	153	*
	154	* @ifname: Interface name (e.g. "ide", "scsi")
	155	* @dev_part_str: Device and partition string
	156	* @dev_desc: Returns a pointer to the block device on success
	157	* @info: Returns partition information
	158	* @allow_whole_dev: true to allow the user to select partition 0
	159	* (which means the whole device), false to require a valid
	160	* partition number >= 1
	161	* @return partition number, or -1 on error
	162	*
	163	*/
	164	int blk_get_device_part_str(const char ifname, const char dev_part_str,
	165	struct blk_desc **dev_desc,
	166	disk_partition_t *info, int allow_whole_dev);
d96a9804	167	extern const struct block_drvr block_drvr[];
df3fc526	168	#else
db1d9e78	169	static inline struct blk_desc blk_get_dev(const char ifname, int dev)
99d2c205	170	{ return NULL; }
d2356284	171	static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; }
4101f687	172	static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; }
012771d8	173
3e8bd469 SG	174	static inline int part_get_info(struct blk_desc *dev_desc, int part,
	175	disk_partition_t *info) { return -1; }
	176	static inline void part_print(struct blk_desc *dev_desc) {}
	177	static inline void part_init(struct blk_desc *dev_desc) {}
4101f687	178	static inline void dev_print(struct blk_desc *dev_desc) {}
ebac37cf SG	179	static inline int blk_get_device_by_str(const char ifname, const char dev_str,
ebac37cf SG	180	struct blk_desc **dev_desc)
2023e608	181	{ return -1; }
e35929e4	182	static inline int blk_get_device_part_str(const char *ifname,
10a37fd7	183	const char *dev_part_str,
4101f687	184	struct blk_desc **dev_desc,
10a37fd7 SW	185	disk_partition_t *info,
10a37fd7 SW	186	int allow_whole_dev)
99d2c205	187	{ *dev_desc = NULL; return -1; }
df3fc526	188	#endif
012771d8	189
96e5b03c SG	190	/*
	191	* We don't support printing partition information in SPL and only support
	192	* getting partition information in a few cases.
	193	*/
	194	#ifdef CONFIG_SPL_BUILD
	195	# define part_print_ptr(x) NULL
d9b2678e	196	# if defined(CONFIG_SPL_EXT_SUPPORT) \|\| defined(CONFIG_SPL_FAT_SUPPORT) \|\| \
96e5b03c SG	197	defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION)
	198	# define part_get_info_ptr(x) x
	199	# else
	200	# define part_get_info_ptr(x) NULL
	201	# endif
	202	#else
	203	#define part_print_ptr(x) x
	204	#define part_get_info_ptr(x) x
012771d8 WD	205	#endif
012771d8 WD	206
012771d8	207
96e5b03c SG	208	struct part_driver {
	209	const char *name;
	210	int part_type;
012771d8	211
96e5b03c SG	212	/**
	213	* get_info() - Get information about a partition
	214	*
	215	* @dev_desc: Block device descriptor
	216	* @part: Partition number (1 = first)
	217	* @info: Returns partition information
	218	*/
	219	int (get_info)(struct blk_desc dev_desc, int part,
	220	disk_partition_t *info);
	221
	222	/**
	223	* print() - Print partition information
	224	*
	225	* @dev_desc: Block device descriptor
	226	*/
	227	void (print)(struct blk_desc dev_desc);
	228
	229	/**
	230	* test() - Test if a device contains this partition type
	231	*
	232	* @dev_desc: Block device descriptor
	233	* @return 0 if the block device appears to contain this partition
	234	* type, -ve if not
	235	*/
	236	int (test)(struct blk_desc dev_desc);
	237	};
	238
	239	/* Declare a new U-Boot partition 'driver' */
	240	#define U_BOOT_PART_TYPE(__name) \
	241	ll_entry_declare(struct part_driver, __name, part_driver)
c7de829c	242
07f3d789	243	#ifdef CONFIG_EFI_PARTITION
40684ddb	244	#include <part_efi.h>
07f3d789	245	/* disk/part_efi.c */
60bf9416	246	/**
3e8bd469	247	* part_get_info_efi_by_name() - Find the specified GPT partition table entry
60bf9416 SR	248	*
	249	* @param dev_desc - block device descriptor
	250	* @param gpt_name - the specified table entry name
	251	* @param info - returns the disk partition info
	252	*
	253	* @return - '0' on match, '-1' on no match, otherwise error
	254	*/
3e8bd469 SG	255	int part_get_info_efi_by_name(struct blk_desc *dev_desc,
3e8bd469 SG	256	const char name, disk_partition_t info);
40684ddb ŁM	257
	258	/**
	259	* write_gpt_table() - Write the GUID Partition Table to disk
	260	*
	261	* @param dev_desc - block device descriptor
	262	* @param gpt_h - pointer to GPT header representation
	263	* @param gpt_e - pointer to GPT partition table entries
	264	*
	265	* @return - zero on success, otherwise error
	266	*/
4101f687	267	int write_gpt_table(struct blk_desc *dev_desc,
40684ddb ŁM	268	gpt_header gpt_h, gpt_entry gpt_e);
	269
	270	/**
	271	* gpt_fill_pte(): Fill the GPT partition table entry
	272	*
	273	* @param gpt_h - GPT header representation
	274	* @param gpt_e - GPT partition table entries
	275	* @param partitions - list of partitions
	276	* @param parts - number of partitions
	277	*
	278	* @return zero on success
	279	*/
	280	int gpt_fill_pte(gpt_header gpt_h, gpt_entry gpt_e,
	281	disk_partition_t *partitions, int parts);
	282
	283	/**
	284	* gpt_fill_header(): Fill the GPT header
	285	*
	286	* @param dev_desc - block device descriptor
	287	* @param gpt_h - GPT header representation
	288	* @param str_guid - disk guid string representation
	289	* @param parts_count - number of partitions
	290	*
	291	* @return - error on str_guid conversion error
	292	*/
4101f687	293	int gpt_fill_header(struct blk_desc dev_desc, gpt_header gpt_h,
40684ddb ŁM	294	char *str_guid, int parts_count);
	295
	296	/**
	297	* gpt_restore(): Restore GPT partition table
	298	*
	299	* @param dev_desc - block device descriptor
	300	* @param str_disk_guid - disk GUID
	301	* @param partitions - list of partitions
	302	* @param parts - number of partitions
	303	*
	304	* @return zero on success
	305	*/
4101f687	306	int gpt_restore(struct blk_desc dev_desc, char str_disk_guid,
40684ddb	307	disk_partition_t *partitions, const int parts_count);
0ff7e585 SR	308
	309	/**
	310	* is_valid_gpt_buf() - Ensure that the Primary GPT information is valid
	311	*
	312	* @param dev_desc - block device descriptor
	313	* @param buf - buffer which contains the MBR and Primary GPT info
	314	*
	315	* @return - '0' on success, otherwise error
	316	*/
4101f687	317	int is_valid_gpt_buf(struct blk_desc dev_desc, void buf);
0ff7e585 SR	318
	319	/**
	320	* write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT
	321	*
	322	* @param dev_desc - block device descriptor
	323	* @param buf - buffer which contains the MBR and Primary GPT info
	324	*
	325	* @return - '0' on success, otherwise error
	326	*/
4101f687	327	int write_mbr_and_gpt_partitions(struct blk_desc dev_desc, void buf);
cef68bf9 LM	328
	329	/**
	330	* gpt_verify_headers() - Function to read and CRC32 check of the GPT's header
	331	* and partition table entries (PTE)
	332	*
	333	* As a side effect if sets gpt_head and gpt_pte so they point to GPT data.
	334	*
	335	* @param dev_desc - block device descriptor
	336	* @param gpt_head - pointer to GPT header data read from medium
	337	* @param gpt_pte - pointer to GPT partition table enties read from medium
	338	*
	339	* @return - '0' on success, otherwise error
	340	*/
4101f687	341	int gpt_verify_headers(struct blk_desc dev_desc, gpt_header gpt_head,
cef68bf9 LM	342	gpt_entry **gpt_pte);
	343
	344	/**
	345	* gpt_verify_partitions() - Function to check if partitions' name, start and
	346	* size correspond to '$partitions' env variable
	347	*
	348	* This function checks if on medium stored GPT data is in sync with information
	349	* provided in '$partitions' environment variable. Specificially, name, start
	350	* and size of the partition is checked.
	351	*
	352	* @param dev_desc - block device descriptor
	353	* @param partitions - partition data read from '$partitions' env variable
	354	* @param parts - number of partitions read from '$partitions' env variable
	355	* @param gpt_head - pointer to GPT header data read from medium
	356	* @param gpt_pte - pointer to GPT partition table enties read from medium
	357	*
	358	* @return - '0' on success, otherwise error
	359	*/
4101f687	360	int gpt_verify_partitions(struct blk_desc *dev_desc,
cef68bf9 LM	361	disk_partition_t *partitions, int parts,
cef68bf9 LM	362	gpt_header gpt_head, gpt_entry *gpt_pte);
07f3d789	363	#endif
07f3d789	364
012771d8	365	#endif /* _PART_H */