include/part.h

   1 /*
   2  * (C) Copyright 2000-2004
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7 #ifndef _PART_H
   8 #define _PART_H
   9
  10 #include <ide.h>
  11 #include <common.h>
  12
  13 typedef struct block_dev_desc {
  14         int             if_type;        /* type of the interface */
  15         int             dev;            /* device number */
  16         unsigned char   part_type;      /* partition type */
  17         unsigned char   target;         /* target SCSI ID */
  18         unsigned char   lun;            /* target LUN */
  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
  24         lbaint_t        lba;            /* number of blocks */
  25         unsigned long   blksz;          /* block size */
  26         int             log2blksz;      /* for convenience: log2(blksz) */
  27         char            vendor [40+1];  /* IDE model, SCSI Vendor */
  28         char            product[20+1];  /* IDE Serial no, SCSI product */
  29         char            revision[8+1];  /* firmware revision */
  30         unsigned long   (*block_read)(int dev,
  31                                       lbaint_t start,
  32                                       lbaint_t blkcnt,
  33                                       void *buffer);
  34         unsigned long   (*block_write)(int dev,
  35                                        lbaint_t start,
  36                                        lbaint_t blkcnt,
  37                                        const void *buffer);
  38         unsigned long   (*block_erase)(int dev,
  39                                        lbaint_t start,
  40                                        lbaint_t blkcnt);
  41         void            *priv;          /* driver private struct pointer */
  42 }block_dev_desc_t;
  43
  44 #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz))
  45 #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \
  46         (PAD_SIZE(size, block_dev_desc->blksz))
  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))
  51
  52 /* Interface types: */
  53 #define IF_TYPE_UNKNOWN         0
  54 #define IF_TYPE_IDE             1
  55 #define IF_TYPE_SCSI            2
  56 #define IF_TYPE_ATAPI           3
  57 #define IF_TYPE_USB             4
  58 #define IF_TYPE_DOC             5
  59 #define IF_TYPE_MMC             6
  60 #define IF_TYPE_SD              7
  61 #define IF_TYPE_SATA            8
  62 #define IF_TYPE_HOST            9
  63 #define IF_TYPE_MAX             10      /* Max number of IF_TYPE_* supported */
  64
  65 /* Part types */
  66 #define PART_TYPE_UNKNOWN       0x00
  67 #define PART_TYPE_MAC           0x01
  68 #define PART_TYPE_DOS           0x02
  69 #define PART_TYPE_ISO           0x03
  70 #define PART_TYPE_AMIGA         0x04
  71 #define PART_TYPE_EFI           0x05
  72
  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
  79 /* device types */
  80 #define DEV_TYPE_UNKNOWN        0xff    /* not connected */
  81 #define DEV_TYPE_HARDDISK       0x00    /* harddisk */
  82 #define DEV_TYPE_TAPE           0x01    /* Tape */
  83 #define DEV_TYPE_CDROM          0x05    /* CD-ROM */
  84 #define DEV_TYPE_OPDISK         0x07    /* optical disk */
  85
  86 typedef struct disk_partition {
  87         lbaint_t        start;  /* # of first block in partition        */
  88         lbaint_t        size;   /* number of blocks in partition        */
  89         ulong   blksz;          /* block size in bytes                  */
  90         uchar   name[32];       /* partition name                       */
  91         uchar   type[32];       /* string type description              */
  92         int     bootable;       /* Active/Bootable flag is set          */
  93 #ifdef CONFIG_PARTITION_UUIDS
  94         char    uuid[37];       /* filesystem UUID as string, if exists */
  95 #endif
  96 } disk_partition_t;
  97
  98 /* Misc _get_dev functions */
  99 #ifdef CONFIG_PARTITIONS
 100 block_dev_desc_t *get_dev(const char *ifname, int dev);
 101 block_dev_desc_t* ide_get_dev(int dev);
 102 block_dev_desc_t* sata_get_dev(int dev);
 103 block_dev_desc_t* scsi_get_dev(int dev);
 104 block_dev_desc_t* usb_stor_get_dev(int dev);
 105 block_dev_desc_t* mmc_get_dev(int dev);
 106 int mmc_select_hwpart(int dev_num, int hwpart);
 107 block_dev_desc_t* systemace_get_dev(int dev);
 108 block_dev_desc_t* mg_disk_get_dev(int dev);
 109 block_dev_desc_t *host_get_dev(int dev);
 110 int host_get_dev_err(int dev, block_dev_desc_t **blk_devp);
 111
 112 /* disk/part.c */
 113 int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 114 void print_part (block_dev_desc_t *dev_desc);
 115 void  init_part (block_dev_desc_t *dev_desc);
 116 void dev_print(block_dev_desc_t *dev_desc);
 117 int get_device(const char *ifname, const char *dev_str,
 118                block_dev_desc_t **dev_desc);
 119 int get_device_and_partition(const char *ifname, const char *dev_part_str,
 120                              block_dev_desc_t **dev_desc,
 121                              disk_partition_t *info, int allow_whole_dev);
 122 #else
 123 static inline block_dev_desc_t *get_dev(const char *ifname, int dev)
 124 { return NULL; }
 125 static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; }
 126 static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; }
 127 static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; }
 128 static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; }
 129 static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; }
 130 static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; }
 131 static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; }
 132 static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; }
 133 static inline block_dev_desc_t *host_get_dev(int dev) { return NULL; }
 134
 135 static inline int get_partition_info (block_dev_desc_t * dev_desc, int part,
 136         disk_partition_t *info) { return -1; }
 137 static inline void print_part (block_dev_desc_t *dev_desc) {}
 138 static inline void  init_part (block_dev_desc_t *dev_desc) {}
 139 static inline void dev_print(block_dev_desc_t *dev_desc) {}
 140 static inline int get_device(const char *ifname, const char *dev_str,
 141                block_dev_desc_t **dev_desc)
 142 { return -1; }
 143 static inline int get_device_and_partition(const char *ifname,
 144                                            const char *dev_part_str,
 145                                            block_dev_desc_t **dev_desc,
 146                                            disk_partition_t *info,
 147                                            int allow_whole_dev)
 148 { *dev_desc = NULL; return -1; }
 149 #endif
 150
 151 #ifdef CONFIG_MAC_PARTITION
 152 /* disk/part_mac.c */
 153 int get_partition_info_mac (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 154 void print_part_mac (block_dev_desc_t *dev_desc);
 155 int   test_part_mac (block_dev_desc_t *dev_desc);
 156 #endif
 157
 158 #ifdef CONFIG_DOS_PARTITION
 159 /* disk/part_dos.c */
 160 int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 161 void print_part_dos (block_dev_desc_t *dev_desc);
 162 int   test_part_dos (block_dev_desc_t *dev_desc);
 163 #endif
 164
 165 #ifdef CONFIG_ISO_PARTITION
 166 /* disk/part_iso.c */
 167 int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 168 void print_part_iso (block_dev_desc_t *dev_desc);
 169 int   test_part_iso (block_dev_desc_t *dev_desc);
 170 #endif
 171
 172 #ifdef CONFIG_AMIGA_PARTITION
 173 /* disk/part_amiga.c */
 174 int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 175 void print_part_amiga (block_dev_desc_t *dev_desc);
 176 int   test_part_amiga (block_dev_desc_t *dev_desc);
 177 #endif
 178
 179 #ifdef CONFIG_EFI_PARTITION
 180 #include <part_efi.h>
 181 /* disk/part_efi.c */
 182 int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 183 /**
 184  * get_partition_info_efi_by_name() - Find the specified GPT partition table entry
 185  *
 186  * @param dev_desc - block device descriptor
 187  * @param gpt_name - the specified table entry name
 188  * @param info - returns the disk partition info
 189  *
 190  * @return - '0' on match, '-1' on no match, otherwise error
 191  */
 192 int get_partition_info_efi_by_name(block_dev_desc_t *dev_desc,
 193         const char *name, disk_partition_t *info);
 194 void print_part_efi (block_dev_desc_t *dev_desc);
 195 int   test_part_efi (block_dev_desc_t *dev_desc);
 196
 197 /**
 198  * write_gpt_table() - Write the GUID Partition Table to disk
 199  *
 200  * @param dev_desc - block device descriptor
 201  * @param gpt_h - pointer to GPT header representation
 202  * @param gpt_e - pointer to GPT partition table entries
 203  *
 204  * @return - zero on success, otherwise error
 205  */
 206 int write_gpt_table(block_dev_desc_t *dev_desc,
 207                   gpt_header *gpt_h, gpt_entry *gpt_e);
 208
 209 /**
 210  * gpt_fill_pte(): Fill the GPT partition table entry
 211  *
 212  * @param gpt_h - GPT header representation
 213  * @param gpt_e - GPT partition table entries
 214  * @param partitions - list of partitions
 215  * @param parts - number of partitions
 216  *
 217  * @return zero on success
 218  */
 219 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
 220                 disk_partition_t *partitions, int parts);
 221
 222 /**
 223  * gpt_fill_header(): Fill the GPT header
 224  *
 225  * @param dev_desc - block device descriptor
 226  * @param gpt_h - GPT header representation
 227  * @param str_guid - disk guid string representation
 228  * @param parts_count - number of partitions
 229  *
 230  * @return - error on str_guid conversion error
 231  */
 232 int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h,
 233                 char *str_guid, int parts_count);
 234
 235 /**
 236  * gpt_restore(): Restore GPT partition table
 237  *
 238  * @param dev_desc - block device descriptor
 239  * @param str_disk_guid - disk GUID
 240  * @param partitions - list of partitions
 241  * @param parts - number of partitions
 242  *
 243  * @return zero on success
 244  */
 245 int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid,
 246                 disk_partition_t *partitions, const int parts_count);
 247
 248 /**
 249  * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid
 250  *
 251  * @param dev_desc - block device descriptor
 252  * @param buf - buffer which contains the MBR and Primary GPT info
 253  *
 254  * @return - '0' on success, otherwise error
 255  */
 256 int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf);
 257
 258 /**
 259  * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT
 260  *
 261  * @param dev_desc - block device descriptor
 262  * @param buf - buffer which contains the MBR and Primary GPT info
 263  *
 264  * @return - '0' on success, otherwise error
 265  */
 266 int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf);
 267 #endif
 268
 269 #endif /* _PART_H */