+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (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>
-#include <common.h>
-
-typedef struct block_dev_desc block_dev_desc_t;
-
-struct block_dev_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)(block_dev_desc_t *block_dev,
- lbaint_t start,
- lbaint_t blkcnt,
- void *buffer);
- unsigned long (*block_write)(block_dev_desc_t *block_dev,
- lbaint_t start,
- lbaint_t blkcnt,
- const void *buffer);
- unsigned long (*block_erase)(block_dev_desc_t *block_dev,
- lbaint_t start,
- lbaint_t blkcnt);
- void *priv; /* driver private struct pointer */
+#include <uuid.h>
+#include <linux/list.h>
+
+struct block_drvr {
+ char *name;
+ int (*select_hwpart)(int dev_num, int hwpart);
};
-#define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz))
-#define PAD_TO_BLOCKSIZE(size, block_dev_desc) \
- (PAD_SIZE(size, block_dev_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_AMIGA 0x04
#define PART_TYPE_EFI 0x05
+/* maximum number of partition entries supported by search */
+#define DOS_ENTRY_NUMBERS 8
+#define ISO_ENTRY_NUMBERS 64
+#define MAC_ENTRY_NUMBERS 64
+#define AMIGA_ENTRY_NUMBERS 8
/*
* Type string for U-Boot bootable partitions
*/
#define DEV_TYPE_CDROM 0x05 /* CD-ROM */
#define DEV_TYPE_OPDISK 0x07 /* optical disk */
+#define PART_NAME_LEN 32
+#define PART_TYPE_LEN 32
+#define MAX_SEARCH_PARTITIONS 64
+
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 */
+ uchar name[PART_NAME_LEN]; /* partition name */
+ uchar type[PART_TYPE_LEN]; /* string type description */
int bootable; /* Active/Bootable flag is set */
-#ifdef CONFIG_PARTITION_UUIDS
- char uuid[37]; /* filesystem UUID as string, if exists */
+#if CONFIG_IS_ENABLED(PARTITION_UUIDS)
+ char uuid[UUID_STR_LEN + 1]; /* filesystem UUID as string, if exists */
#endif
#ifdef CONFIG_PARTITION_TYPE_GUID
- char type_guid[37]; /* type GUID as string, if exists */
+ char type_guid[UUID_STR_LEN + 1]; /* type GUID as string, if exists */
+#endif
+#ifdef CONFIG_DOS_PARTITION
+ uchar sys_ind; /* partition type */
#endif
} disk_partition_t;
+struct disk_part {
+ int partnum;
+ disk_partition_t gpt_part_info;
+ struct list_head list;
+};
+
/* Misc _get_dev functions */
#ifdef CONFIG_PARTITIONS
-block_dev_desc_t *get_dev(const char *ifname, int dev);
-block_dev_desc_t* ide_get_dev(int dev);
-block_dev_desc_t* sata_get_dev(int dev);
-block_dev_desc_t* scsi_get_dev(int dev);
-block_dev_desc_t* usb_stor_get_dev(int dev);
-block_dev_desc_t* mmc_get_dev(int dev);
-int mmc_select_hwpart(int dev_num, int hwpart);
-block_dev_desc_t* systemace_get_dev(int dev);
-block_dev_desc_t* mg_disk_get_dev(int dev);
-block_dev_desc_t *host_get_dev(int dev);
-int host_get_dev_err(int dev, block_dev_desc_t **blk_devp);
+/**
+ * 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 *mg_disk_get_dev(int dev);
+int host_get_dev_err(int dev, struct blk_desc **blk_devp);
/* disk/part.c */
-int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part (block_dev_desc_t *dev_desc);
-void init_part (block_dev_desc_t *dev_desc);
-void dev_print(block_dev_desc_t *dev_desc);
-int get_device(const char *ifname, const char *dev_str,
- block_dev_desc_t **dev_desc);
-int get_device_and_partition(const char *ifname, const char *dev_part_str,
- block_dev_desc_t **dev_desc,
- disk_partition_t *info, int allow_whole_dev);
+int part_get_info(struct blk_desc *dev_desc, int part, disk_partition_t *info);
+/**
+ * part_get_info_whole_disk() - get partition info for the special case of
+ * a partition occupying the entire disk.
+ */
+int part_get_info_whole_disk(struct blk_desc *dev_desc, 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);
+
+/**
+ * part_get_info_by_name_type() - Search for a partition by name
+ * for only specified partition type
+ *
+ * @param dev_desc - block device descriptor
+ * @param gpt_name - the specified table entry name
+ * @param info - returns the disk partition info
+ * @param part_type - only search in partitions of this type
+ *
+ * @return - the partition number on match (starting on 1), -1 on no match,
+ * otherwise error
+ */
+int part_get_info_by_name_type(struct blk_desc *dev_desc, const char *name,
+ disk_partition_t *info, int part_type);
+
+/**
+ * part_get_info_by_name() - Search for a partition by name
+ * among all available registered partitions
+ *
+ * @param dev_desc - block device descriptor
+ * @param gpt_name - the specified table entry name
+ * @param info - returns the disk partition info
+ *
+ * @return - the partition number on match (starting on 1), -1 on no match,
+ * otherwise error
+ */
+int part_get_info_by_name(struct blk_desc *dev_desc,
+ const char *name, disk_partition_t *info);
+
+/**
+ * Get partition info from dev number + part name, or dev number + part number.
+ *
+ * Parse a device number and partition description (either name or number)
+ * in the form of device number plus partition name separated by a "#"
+ * (like "device_num#partition_name") or a device number plus a partition number
+ * separated by a ":". For example both "0#misc" and "0:1" can be valid
+ * partition descriptions for a given interface. If the partition is found, sets
+ * dev_desc and part_info accordingly with the information of the partition.
+ *
+ * @param[in] dev_iface Device interface
+ * @param[in] dev_part_str Input partition description, like "0#misc" or "0:1"
+ * @param[out] dev_desc Place to store the device description pointer
+ * @param[out] part_info Place to store the partition information
+ * @return 0 on success, or a negative on error
+ */
+int part_get_info_by_dev_and_name_or_num(const char *dev_iface,
+ const char *dev_part_str,
+ struct blk_desc **dev_desc,
+ disk_partition_t *part_info);
+
+/**
+ * part_set_generic_name() - create generic partition like hda1 or sdb2
+ *
+ * Helper function for partition tables, which don't hold partition names
+ * (DOS, ISO). Generates partition name out of the device type and partition
+ * number.
+ *
+ * @dev_desc: pointer to the block device
+ * @part_num: partition number for which the name is generated
+ * @name: buffer where the name is written
+ */
+void part_set_generic_name(const struct blk_desc *dev_desc,
+ int part_num, char *name);
+
+extern const struct block_drvr block_drvr[];
#else
-static inline block_dev_desc_t *get_dev(const char *ifname, int dev)
+static inline struct blk_desc *blk_get_dev(const char *ifname, int dev)
{ return NULL; }
-static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; }
-static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; }
-static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; }
-static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; }
-static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; }
-static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; }
-static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; }
-static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; }
-static inline block_dev_desc_t *host_get_dev(int dev) { return NULL; }
-
-static inline int get_partition_info (block_dev_desc_t * dev_desc, int part,
- disk_partition_t *info) { return -1; }
-static inline void print_part (block_dev_desc_t *dev_desc) {}
-static inline void init_part (block_dev_desc_t *dev_desc) {}
-static inline void dev_print(block_dev_desc_t *dev_desc) {}
-static inline int get_device(const char *ifname, const char *dev_str,
- block_dev_desc_t **dev_desc)
+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 int part_get_info_whole_disk(struct blk_desc *dev_desc,
+ disk_partition_t *info)
{ return -1; }
-static inline int get_device_and_partition(const char *ifname,
+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,
- block_dev_desc_t **dev_desc,
+ 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 (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part_mac (block_dev_desc_t *dev_desc);
-int test_part_mac (block_dev_desc_t *dev_desc);
+/*
+ * 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_FS_EXT4) || defined(CONFIG_SPL_FS_FAT) || \
+ 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
-#ifdef CONFIG_DOS_PARTITION
-/* disk/part_dos.c */
-int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part_dos (block_dev_desc_t *dev_desc);
-int test_part_dos (block_dev_desc_t *dev_desc);
-#endif
-#ifdef CONFIG_ISO_PARTITION
-/* disk/part_iso.c */
-int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part_iso (block_dev_desc_t *dev_desc);
-int test_part_iso (block_dev_desc_t *dev_desc);
-#endif
+struct part_driver {
+ const char *name;
+ int part_type;
+ const int max_entries; /* maximum number of entries to search */
-#ifdef CONFIG_AMIGA_PARTITION
-/* disk/part_amiga.c */
-int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
-void print_part_amiga (block_dev_desc_t *dev_desc);
-int test_part_amiga (block_dev_desc_t *dev_desc);
-#endif
+ /**
+ * 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 */
-int get_partition_info_efi (block_dev_desc_t * 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(block_dev_desc_t *dev_desc,
- const char *name, disk_partition_t *info);
-void print_part_efi (block_dev_desc_t *dev_desc);
-int test_part_efi (block_dev_desc_t *dev_desc);
+#if CONFIG_IS_ENABLED(EFI_PARTITION)
+/* disk/part_efi.c */
/**
* write_gpt_table() - Write the GUID Partition Table to disk
*
*
* @return - zero on success, otherwise error
*/
-int write_gpt_table(block_dev_desc_t *dev_desc,
+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 dev_desc - block device descriptor
* @param gpt_h - GPT header representation
* @param gpt_e - GPT partition table entries
* @param partitions - list of partitions
*
* @return zero on success
*/
-int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
- disk_partition_t *partitions, int parts);
+int gpt_fill_pte(struct blk_desc *dev_desc,
+ gpt_header *gpt_h, gpt_entry *gpt_e,
+ disk_partition_t *partitions, int parts);
/**
* gpt_fill_header(): Fill the GPT header
*
* @return - error on str_guid conversion error
*/
-int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h,
+int gpt_fill_header(struct blk_desc *dev_desc, gpt_header *gpt_h,
char *str_guid, int parts_count);
/**
*
* @return zero on success
*/
-int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid,
+int gpt_restore(struct blk_desc *dev_desc, char *str_disk_guid,
disk_partition_t *partitions, const int parts_count);
/**
*
* @return - '0' on success, otherwise error
*/
-int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf);
+int is_valid_gpt_buf(struct blk_desc *dev_desc, void *buf);
/**
* write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT
*
* @return - '0' on success, otherwise error
*/
-int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf);
+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
*
* @return - '0' on success, otherwise error
*/
-int gpt_verify_headers(block_dev_desc_t *dev_desc, gpt_header *gpt_head,
+int gpt_verify_headers(struct blk_desc *dev_desc, gpt_header *gpt_head,
gpt_entry **gpt_pte);
/**
*
* @return - '0' on success, otherwise error
*/
-int gpt_verify_partitions(block_dev_desc_t *dev_desc,
+int gpt_verify_partitions(struct blk_desc *dev_desc,
disk_partition_t *partitions, int parts,
gpt_header *gpt_head, gpt_entry **gpt_pte);
+
+
+/**
+ * get_disk_guid() - Function to read the GUID string from a device's GPT
+ *
+ * This function reads the GUID string from a block device whose descriptor
+ * is provided.
+ *
+ * @param dev_desc - block device descriptor
+ * @param guid - pre-allocated string in which to return the GUID
+ *
+ * @return - '0' on success, otherwise error
+ */
+int get_disk_guid(struct blk_desc *dev_desc, char *guid);
+
#endif
+#if CONFIG_IS_ENABLED(DOS_PARTITION)
+/**
+ * is_valid_dos_buf() - Ensure that a DOS MBR image is valid
+ *
+ * @param buf - buffer which contains the MBR
+ *
+ * @return - '0' on success, otherwise error
+ */
+int is_valid_dos_buf(void *buf);
+
+/**
+ * write_mbr_partition() - write DOS MBR
+ *
+ * @param dev_desc - block device descriptor
+ * @param buf - buffer which contains the MBR
+ *
+ * @return - '0' on success, otherwise error
+ */
+int write_mbr_partition(struct blk_desc *dev_desc, void *buf);
+
+#endif
+
+
#endif /* _PART_H */
projects / oweals / u-boot.git / blobdiff