include/part.h

   1 /*
   2  * (C) Copyright 2000-2004
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23 #ifndef _PART_H
  24 #define _PART_H
  25
  26 #include <ide.h>
  27
  28 typedef struct block_dev_desc {
  29         int             if_type;        /* type of the interface */
  30         int             dev;            /* device number */
  31         unsigned char   part_type;      /* partition type */
  32         unsigned char   target;         /* target SCSI ID */
  33         unsigned char   lun;            /* target LUN */
  34         unsigned char   type;           /* device type */
  35         unsigned char   removable;      /* removable device */
  36 #ifdef CONFIG_LBA48
  37         unsigned char   lba48;          /* device can use 48bit addr (ATA/ATAPI v7) */
  38 #endif
  39         lbaint_t        lba;            /* number of blocks */
  40         unsigned long   blksz;          /* block size */
  41         char            vendor [40+1];  /* IDE model, SCSI Vendor */
  42         char            product[20+1];  /* IDE Serial no, SCSI product */
  43         char            revision[8+1];  /* firmware revision */
  44         unsigned long   (*block_read)(int dev,
  45                                       unsigned long start,
  46                                       lbaint_t blkcnt,
  47                                       void *buffer);
  48         unsigned long   (*block_write)(int dev,
  49                                        unsigned long start,
  50                                        lbaint_t blkcnt,
  51                                        const void *buffer);
  52         unsigned long   (*block_erase)(int dev,
  53                                        unsigned long start,
  54                                        lbaint_t blkcnt);
  55         void            *priv;          /* driver private struct pointer */
  56 }block_dev_desc_t;
  57
  58 #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz))
  59 #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \
  60         (PAD_SIZE(size, block_dev_desc->blksz))
  61
  62 /* Interface types: */
  63 #define IF_TYPE_UNKNOWN         0
  64 #define IF_TYPE_IDE             1
  65 #define IF_TYPE_SCSI            2
  66 #define IF_TYPE_ATAPI           3
  67 #define IF_TYPE_USB             4
  68 #define IF_TYPE_DOC             5
  69 #define IF_TYPE_MMC             6
  70 #define IF_TYPE_SD              7
  71 #define IF_TYPE_SATA            8
  72
  73 /* Part types */
  74 #define PART_TYPE_UNKNOWN       0x00
  75 #define PART_TYPE_MAC           0x01
  76 #define PART_TYPE_DOS           0x02
  77 #define PART_TYPE_ISO           0x03
  78 #define PART_TYPE_AMIGA         0x04
  79 #define PART_TYPE_EFI           0x05
  80
  81 /*
  82  * Type string for U-Boot bootable partitions
  83  */
  84 #define BOOT_PART_TYPE  "U-Boot"        /* primary boot partition type  */
  85 #define BOOT_PART_COMP  "PPCBoot"       /* PPCBoot compatibility type   */
  86
  87 /* device types */
  88 #define DEV_TYPE_UNKNOWN        0xff    /* not connected */
  89 #define DEV_TYPE_HARDDISK       0x00    /* harddisk */
  90 #define DEV_TYPE_TAPE           0x01    /* Tape */
  91 #define DEV_TYPE_CDROM          0x05    /* CD-ROM */
  92 #define DEV_TYPE_OPDISK         0x07    /* optical disk */
  93
  94 typedef struct disk_partition {
  95         ulong   start;          /* # of first block in partition        */
  96         ulong   size;           /* number of blocks in partition        */
  97         ulong   blksz;          /* block size in bytes                  */
  98         uchar   name[32];       /* partition name                       */
  99         uchar   type[32];       /* string type description              */
 100         int     bootable;       /* Active/Bootable flag is set          */
 101 #ifdef CONFIG_PARTITION_UUIDS
 102         char    uuid[37];       /* filesystem UUID as string, if exists */
 103 #endif
 104 } disk_partition_t;
 105
 106 /* Misc _get_dev functions */
 107 #ifdef CONFIG_PARTITIONS
 108 block_dev_desc_t *get_dev(const char *ifname, int dev);
 109 block_dev_desc_t* ide_get_dev(int dev);
 110 block_dev_desc_t* sata_get_dev(int dev);
 111 block_dev_desc_t* scsi_get_dev(int dev);
 112 block_dev_desc_t* usb_stor_get_dev(int dev);
 113 block_dev_desc_t* mmc_get_dev(int dev);
 114 block_dev_desc_t* systemace_get_dev(int dev);
 115 block_dev_desc_t* mg_disk_get_dev(int dev);
 116
 117 /* disk/part.c */
 118 int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 119 void print_part (block_dev_desc_t *dev_desc);
 120 void  init_part (block_dev_desc_t *dev_desc);
 121 void dev_print(block_dev_desc_t *dev_desc);
 122 int get_device(const char *ifname, const char *dev_str,
 123                block_dev_desc_t **dev_desc);
 124 int get_device_and_partition(const char *ifname, const char *dev_part_str,
 125                              block_dev_desc_t **dev_desc,
 126                              disk_partition_t *info, int allow_whole_dev);
 127 #else
 128 static inline block_dev_desc_t *get_dev(const char *ifname, int dev)
 129 { return NULL; }
 130 static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; }
 131 static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; }
 132 static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; }
 133 static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; }
 134 static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; }
 135 static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; }
 136 static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; }
 137
 138 static inline int get_partition_info (block_dev_desc_t * dev_desc, int part,
 139         disk_partition_t *info) { return -1; }
 140 static inline void print_part (block_dev_desc_t *dev_desc) {}
 141 static inline void  init_part (block_dev_desc_t *dev_desc) {}
 142 static inline void dev_print(block_dev_desc_t *dev_desc) {}
 143 static inline int get_device(const char *ifname, const char *dev_str,
 144                block_dev_desc_t **dev_desc)
 145 { return -1; }
 146 static inline int get_device_and_partition(const char *ifname,
 147                                            const char *dev_part_str,
 148                                            block_dev_desc_t **dev_desc,
 149                                            disk_partition_t *info,
 150                                            int allow_whole_dev)
 151 { *dev_desc = NULL; return -1; }
 152 #endif
 153
 154 #ifdef CONFIG_MAC_PARTITION
 155 /* disk/part_mac.c */
 156 int get_partition_info_mac (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 157 void print_part_mac (block_dev_desc_t *dev_desc);
 158 int   test_part_mac (block_dev_desc_t *dev_desc);
 159 #endif
 160
 161 #ifdef CONFIG_DOS_PARTITION
 162 /* disk/part_dos.c */
 163 int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 164 void print_part_dos (block_dev_desc_t *dev_desc);
 165 int   test_part_dos (block_dev_desc_t *dev_desc);
 166 #endif
 167
 168 #ifdef CONFIG_ISO_PARTITION
 169 /* disk/part_iso.c */
 170 int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 171 void print_part_iso (block_dev_desc_t *dev_desc);
 172 int   test_part_iso (block_dev_desc_t *dev_desc);
 173 #endif
 174
 175 #ifdef CONFIG_AMIGA_PARTITION
 176 /* disk/part_amiga.c */
 177 int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 178 void print_part_amiga (block_dev_desc_t *dev_desc);
 179 int   test_part_amiga (block_dev_desc_t *dev_desc);
 180 #endif
 181
 182 #ifdef CONFIG_EFI_PARTITION
 183 #include <part_efi.h>
 184 /* disk/part_efi.c */
 185 int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 186 void print_part_efi (block_dev_desc_t *dev_desc);
 187 int   test_part_efi (block_dev_desc_t *dev_desc);
 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  */
 198 int write_gpt_table(block_dev_desc_t *dev_desc,
 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  */
 224 int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h,
 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  */
 237 int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid,
 238                 disk_partition_t *partitions, const int parts_count);
 239 #endif
 240
 241 #endif /* _PART_H */