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         int             log2blksz;      /* for convenience: log2(blksz) */
  42         char            vendor [40+1];  /* IDE model, SCSI Vendor */
  43         char            product[20+1];  /* IDE Serial no, SCSI product */
  44         char            revision[8+1];  /* firmware revision */
  45         unsigned long   (*block_read)(int dev,
  46                                       lbaint_t start,
  47                                       lbaint_t blkcnt,
  48                                       void *buffer);
  49         unsigned long   (*block_write)(int dev,
  50                                        lbaint_t start,
  51                                        lbaint_t blkcnt,
  52                                        const void *buffer);
  53         unsigned long   (*block_erase)(int dev,
  54                                        lbaint_t start,
  55                                        lbaint_t blkcnt);
  56         void            *priv;          /* driver private struct pointer */
  57 }block_dev_desc_t;
  58
  59 #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz))
  60 #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \
  61         (PAD_SIZE(size, block_dev_desc->blksz))
  62 #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
  63                  ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
  64                  ((x & 0xffff0000) ? 16 : 0))
  65 #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))
  66
  67 /* Interface types: */
  68 #define IF_TYPE_UNKNOWN         0
  69 #define IF_TYPE_IDE             1
  70 #define IF_TYPE_SCSI            2
  71 #define IF_TYPE_ATAPI           3
  72 #define IF_TYPE_USB             4
  73 #define IF_TYPE_DOC             5
  74 #define IF_TYPE_MMC             6
  75 #define IF_TYPE_SD              7
  76 #define IF_TYPE_SATA            8
  77
  78 /* Part types */
  79 #define PART_TYPE_UNKNOWN       0x00
  80 #define PART_TYPE_MAC           0x01
  81 #define PART_TYPE_DOS           0x02
  82 #define PART_TYPE_ISO           0x03
  83 #define PART_TYPE_AMIGA         0x04
  84 #define PART_TYPE_EFI           0x05
  85
  86 /*
  87  * Type string for U-Boot bootable partitions
  88  */
  89 #define BOOT_PART_TYPE  "U-Boot"        /* primary boot partition type  */
  90 #define BOOT_PART_COMP  "PPCBoot"       /* PPCBoot compatibility type   */
  91
  92 /* device types */
  93 #define DEV_TYPE_UNKNOWN        0xff    /* not connected */
  94 #define DEV_TYPE_HARDDISK       0x00    /* harddisk */
  95 #define DEV_TYPE_TAPE           0x01    /* Tape */
  96 #define DEV_TYPE_CDROM          0x05    /* CD-ROM */
  97 #define DEV_TYPE_OPDISK         0x07    /* optical disk */
  98
  99 typedef struct disk_partition {
 100         lbaint_t        start;  /* # of first block in partition        */
 101         lbaint_t        size;   /* number of blocks in partition        */
 102         ulong   blksz;          /* block size in bytes                  */
 103         uchar   name[32];       /* partition name                       */
 104         uchar   type[32];       /* string type description              */
 105         int     bootable;       /* Active/Bootable flag is set          */
 106 #ifdef CONFIG_PARTITION_UUIDS
 107         char    uuid[37];       /* filesystem UUID as string, if exists */
 108 #endif
 109 } disk_partition_t;
 110
 111 /* Misc _get_dev functions */
 112 #ifdef CONFIG_PARTITIONS
 113 block_dev_desc_t *get_dev(const char *ifname, int dev);
 114 block_dev_desc_t* ide_get_dev(int dev);
 115 block_dev_desc_t* sata_get_dev(int dev);
 116 block_dev_desc_t* scsi_get_dev(int dev);
 117 block_dev_desc_t* usb_stor_get_dev(int dev);
 118 block_dev_desc_t* mmc_get_dev(int dev);
 119 block_dev_desc_t* systemace_get_dev(int dev);
 120 block_dev_desc_t* mg_disk_get_dev(int dev);
 121
 122 /* disk/part.c */
 123 int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 124 void print_part (block_dev_desc_t *dev_desc);
 125 void  init_part (block_dev_desc_t *dev_desc);
 126 void dev_print(block_dev_desc_t *dev_desc);
 127 int get_device(const char *ifname, const char *dev_str,
 128                block_dev_desc_t **dev_desc);
 129 int get_device_and_partition(const char *ifname, const char *dev_part_str,
 130                              block_dev_desc_t **dev_desc,
 131                              disk_partition_t *info, int allow_whole_dev);
 132 #else
 133 static inline block_dev_desc_t *get_dev(const char *ifname, int dev)
 134 { return NULL; }
 135 static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; }
 136 static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; }
 137 static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; }
 138 static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; }
 139 static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; }
 140 static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; }
 141 static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; }
 142
 143 static inline int get_partition_info (block_dev_desc_t * dev_desc, int part,
 144         disk_partition_t *info) { return -1; }
 145 static inline void print_part (block_dev_desc_t *dev_desc) {}
 146 static inline void  init_part (block_dev_desc_t *dev_desc) {}
 147 static inline void dev_print(block_dev_desc_t *dev_desc) {}
 148 static inline int get_device(const char *ifname, const char *dev_str,
 149                block_dev_desc_t **dev_desc)
 150 { return -1; }
 151 static inline int get_device_and_partition(const char *ifname,
 152                                            const char *dev_part_str,
 153                                            block_dev_desc_t **dev_desc,
 154                                            disk_partition_t *info,
 155                                            int allow_whole_dev)
 156 { *dev_desc = NULL; return -1; }
 157 #endif
 158
 159 #ifdef CONFIG_MAC_PARTITION
 160 /* disk/part_mac.c */
 161 int get_partition_info_mac (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 162 void print_part_mac (block_dev_desc_t *dev_desc);
 163 int   test_part_mac (block_dev_desc_t *dev_desc);
 164 #endif
 165
 166 #ifdef CONFIG_DOS_PARTITION
 167 /* disk/part_dos.c */
 168 int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 169 void print_part_dos (block_dev_desc_t *dev_desc);
 170 int   test_part_dos (block_dev_desc_t *dev_desc);
 171 #endif
 172
 173 #ifdef CONFIG_ISO_PARTITION
 174 /* disk/part_iso.c */
 175 int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 176 void print_part_iso (block_dev_desc_t *dev_desc);
 177 int   test_part_iso (block_dev_desc_t *dev_desc);
 178 #endif
 179
 180 #ifdef CONFIG_AMIGA_PARTITION
 181 /* disk/part_amiga.c */
 182 int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 183 void print_part_amiga (block_dev_desc_t *dev_desc);
 184 int   test_part_amiga (block_dev_desc_t *dev_desc);
 185 #endif
 186
 187 #ifdef CONFIG_EFI_PARTITION
 188 #include <part_efi.h>
 189 /* disk/part_efi.c */
 190 int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 191 void print_part_efi (block_dev_desc_t *dev_desc);
 192 int   test_part_efi (block_dev_desc_t *dev_desc);
 193
 194 /**
 195  * write_gpt_table() - Write the GUID Partition Table to disk
 196  *
 197  * @param dev_desc - block device descriptor
 198  * @param gpt_h - pointer to GPT header representation
 199  * @param gpt_e - pointer to GPT partition table entries
 200  *
 201  * @return - zero on success, otherwise error
 202  */
 203 int write_gpt_table(block_dev_desc_t *dev_desc,
 204                   gpt_header *gpt_h, gpt_entry *gpt_e);
 205
 206 /**
 207  * gpt_fill_pte(): Fill the GPT partition table entry
 208  *
 209  * @param gpt_h - GPT header representation
 210  * @param gpt_e - GPT partition table entries
 211  * @param partitions - list of partitions
 212  * @param parts - number of partitions
 213  *
 214  * @return zero on success
 215  */
 216 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
 217                 disk_partition_t *partitions, int parts);
 218
 219 /**
 220  * gpt_fill_header(): Fill the GPT header
 221  *
 222  * @param dev_desc - block device descriptor
 223  * @param gpt_h - GPT header representation
 224  * @param str_guid - disk guid string representation
 225  * @param parts_count - number of partitions
 226  *
 227  * @return - error on str_guid conversion error
 228  */
 229 int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h,
 230                 char *str_guid, int parts_count);
 231
 232 /**
 233  * gpt_restore(): Restore GPT partition table
 234  *
 235  * @param dev_desc - block device descriptor
 236  * @param str_disk_guid - disk GUID
 237  * @param partitions - list of partitions
 238  * @param parts - number of partitions
 239  *
 240  * @return zero on success
 241  */
 242 int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid,
 243                 disk_partition_t *partitions, const int parts_count);
 244 #endif
 245
 246 #endif /* _PART_H */