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 block_dev_desc_t; 14 15 struct block_dev_desc { 16 int if_type; /* type of the interface */ 17 int dev; /* device number */ 18 unsigned char part_type; /* partition type */ 19 unsigned char target; /* target SCSI ID */ 20 unsigned char lun; /* target LUN */ 21 unsigned char type; /* device type */ 22 unsigned char removable; /* removable device */ 23 #ifdef CONFIG_LBA48 24 unsigned char lba48; /* device can use 48bit addr (ATA/ATAPI v7) */ 25 #endif 26 lbaint_t lba; /* number of blocks */ 27 unsigned long blksz; /* block size */ 28 int log2blksz; /* for convenience: log2(blksz) */ 29 char vendor [40+1]; /* IDE model, SCSI Vendor */ 30 char product[20+1]; /* IDE Serial no, SCSI product */ 31 char revision[8+1]; /* firmware revision */ 32 unsigned long (*block_read)(block_dev_desc_t *block_dev, 33 lbaint_t start, 34 lbaint_t blkcnt, 35 void *buffer); 36 unsigned long (*block_write)(block_dev_desc_t *block_dev, 37 lbaint_t start, 38 lbaint_t blkcnt, 39 const void *buffer); 40 unsigned long (*block_erase)(block_dev_desc_t *block_dev, 41 lbaint_t start, 42 lbaint_t blkcnt); 43 void *priv; /* driver private struct pointer */ 44 }; 45 46 #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz)) 47 #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \ 48 (PAD_SIZE(size, block_dev_desc->blksz)) 49 #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \ 50 ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \ 51 ((x & 0xffff0000) ? 16 : 0)) 52 #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1)) 53 54 /* Interface types: */ 55 #define IF_TYPE_UNKNOWN 0 56 #define IF_TYPE_IDE 1 57 #define IF_TYPE_SCSI 2 58 #define IF_TYPE_ATAPI 3 59 #define IF_TYPE_USB 4 60 #define IF_TYPE_DOC 5 61 #define IF_TYPE_MMC 6 62 #define IF_TYPE_SD 7 63 #define IF_TYPE_SATA 8 64 #define IF_TYPE_HOST 9 65 #define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */ 66 67 /* Part types */ 68 #define PART_TYPE_UNKNOWN 0x00 69 #define PART_TYPE_MAC 0x01 70 #define PART_TYPE_DOS 0x02 71 #define PART_TYPE_ISO 0x03 72 #define PART_TYPE_AMIGA 0x04 73 #define PART_TYPE_EFI 0x05 74 75 /* 76 * Type string for U-Boot bootable partitions 77 */ 78 #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */ 79 #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */ 80 81 /* device types */ 82 #define DEV_TYPE_UNKNOWN 0xff /* not connected */ 83 #define DEV_TYPE_HARDDISK 0x00 /* harddisk */ 84 #define DEV_TYPE_TAPE 0x01 /* Tape */ 85 #define DEV_TYPE_CDROM 0x05 /* CD-ROM */ 86 #define DEV_TYPE_OPDISK 0x07 /* optical disk */ 87 88 typedef struct disk_partition { 89 lbaint_t start; /* # of first block in partition */ 90 lbaint_t size; /* number of blocks in partition */ 91 ulong blksz; /* block size in bytes */ 92 uchar name[32]; /* partition name */ 93 uchar type[32]; /* string type description */ 94 int bootable; /* Active/Bootable flag is set */ 95 #ifdef CONFIG_PARTITION_UUIDS 96 char uuid[37]; /* filesystem UUID as string, if exists */ 97 #endif 98 #ifdef CONFIG_PARTITION_TYPE_GUID 99 char type_guid[37]; /* type GUID as string, if exists */ 100 #endif 101 } disk_partition_t; 102 103 /* Misc _get_dev functions */ 104 #ifdef CONFIG_PARTITIONS 105 block_dev_desc_t *get_dev(const char *ifname, int dev); 106 block_dev_desc_t* ide_get_dev(int dev); 107 block_dev_desc_t* sata_get_dev(int dev); 108 block_dev_desc_t* scsi_get_dev(int dev); 109 block_dev_desc_t* usb_stor_get_dev(int dev); 110 block_dev_desc_t* mmc_get_dev(int dev); 111 int mmc_select_hwpart(int dev_num, int hwpart); 112 block_dev_desc_t* systemace_get_dev(int dev); 113 block_dev_desc_t* mg_disk_get_dev(int dev); 114 block_dev_desc_t *host_get_dev(int dev); 115 int host_get_dev_err(int dev, block_dev_desc_t **blk_devp); 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 int mmc_select_hwpart(int dev_num, int hwpart) { return -1; } 136 static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; } 137 static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; } 138 static inline block_dev_desc_t *host_get_dev(int dev) { return NULL; } 139 140 static inline int get_partition_info (block_dev_desc_t * dev_desc, int part, 141 disk_partition_t *info) { return -1; } 142 static inline void print_part (block_dev_desc_t *dev_desc) {} 143 static inline void init_part (block_dev_desc_t *dev_desc) {} 144 static inline void dev_print(block_dev_desc_t *dev_desc) {} 145 static inline int get_device(const char *ifname, const char *dev_str, 146 block_dev_desc_t **dev_desc) 147 { return -1; } 148 static inline int get_device_and_partition(const char *ifname, 149 const char *dev_part_str, 150 block_dev_desc_t **dev_desc, 151 disk_partition_t *info, 152 int allow_whole_dev) 153 { *dev_desc = NULL; return -1; } 154 #endif 155 156 #ifdef CONFIG_MAC_PARTITION 157 /* disk/part_mac.c */ 158 int get_partition_info_mac (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 159 void print_part_mac (block_dev_desc_t *dev_desc); 160 int test_part_mac (block_dev_desc_t *dev_desc); 161 #endif 162 163 #ifdef CONFIG_DOS_PARTITION 164 /* disk/part_dos.c */ 165 int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 166 void print_part_dos (block_dev_desc_t *dev_desc); 167 int test_part_dos (block_dev_desc_t *dev_desc); 168 #endif 169 170 #ifdef CONFIG_ISO_PARTITION 171 /* disk/part_iso.c */ 172 int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 173 void print_part_iso (block_dev_desc_t *dev_desc); 174 int test_part_iso (block_dev_desc_t *dev_desc); 175 #endif 176 177 #ifdef CONFIG_AMIGA_PARTITION 178 /* disk/part_amiga.c */ 179 int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 180 void print_part_amiga (block_dev_desc_t *dev_desc); 181 int test_part_amiga (block_dev_desc_t *dev_desc); 182 #endif 183 184 #ifdef CONFIG_EFI_PARTITION 185 #include <part_efi.h> 186 /* disk/part_efi.c */ 187 int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 188 /** 189 * get_partition_info_efi_by_name() - Find the specified GPT partition table entry 190 * 191 * @param dev_desc - block device descriptor 192 * @param gpt_name - the specified table entry name 193 * @param info - returns the disk partition info 194 * 195 * @return - '0' on match, '-1' on no match, otherwise error 196 */ 197 int get_partition_info_efi_by_name(block_dev_desc_t *dev_desc, 198 const char *name, disk_partition_t *info); 199 void print_part_efi (block_dev_desc_t *dev_desc); 200 int test_part_efi (block_dev_desc_t *dev_desc); 201 202 /** 203 * write_gpt_table() - Write the GUID Partition Table to disk 204 * 205 * @param dev_desc - block device descriptor 206 * @param gpt_h - pointer to GPT header representation 207 * @param gpt_e - pointer to GPT partition table entries 208 * 209 * @return - zero on success, otherwise error 210 */ 211 int write_gpt_table(block_dev_desc_t *dev_desc, 212 gpt_header *gpt_h, gpt_entry *gpt_e); 213 214 /** 215 * gpt_fill_pte(): Fill the GPT partition table entry 216 * 217 * @param gpt_h - GPT header representation 218 * @param gpt_e - GPT partition table entries 219 * @param partitions - list of partitions 220 * @param parts - number of partitions 221 * 222 * @return zero on success 223 */ 224 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e, 225 disk_partition_t *partitions, int parts); 226 227 /** 228 * gpt_fill_header(): Fill the GPT header 229 * 230 * @param dev_desc - block device descriptor 231 * @param gpt_h - GPT header representation 232 * @param str_guid - disk guid string representation 233 * @param parts_count - number of partitions 234 * 235 * @return - error on str_guid conversion error 236 */ 237 int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h, 238 char *str_guid, int parts_count); 239 240 /** 241 * gpt_restore(): Restore GPT partition table 242 * 243 * @param dev_desc - block device descriptor 244 * @param str_disk_guid - disk GUID 245 * @param partitions - list of partitions 246 * @param parts - number of partitions 247 * 248 * @return zero on success 249 */ 250 int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid, 251 disk_partition_t *partitions, const int parts_count); 252 253 /** 254 * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid 255 * 256 * @param dev_desc - block device descriptor 257 * @param buf - buffer which contains the MBR and Primary GPT info 258 * 259 * @return - '0' on success, otherwise error 260 */ 261 int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf); 262 263 /** 264 * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT 265 * 266 * @param dev_desc - block device descriptor 267 * @param buf - buffer which contains the MBR and Primary GPT info 268 * 269 * @return - '0' on success, otherwise error 270 */ 271 int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf); 272 273 /** 274 * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header 275 * and partition table entries (PTE) 276 * 277 * As a side effect if sets gpt_head and gpt_pte so they point to GPT data. 278 * 279 * @param dev_desc - block device descriptor 280 * @param gpt_head - pointer to GPT header data read from medium 281 * @param gpt_pte - pointer to GPT partition table enties read from medium 282 * 283 * @return - '0' on success, otherwise error 284 */ 285 int gpt_verify_headers(block_dev_desc_t *dev_desc, gpt_header *gpt_head, 286 gpt_entry **gpt_pte); 287 288 /** 289 * gpt_verify_partitions() - Function to check if partitions' name, start and 290 * size correspond to '$partitions' env variable 291 * 292 * This function checks if on medium stored GPT data is in sync with information 293 * provided in '$partitions' environment variable. Specificially, name, start 294 * and size of the partition is checked. 295 * 296 * @param dev_desc - block device descriptor 297 * @param partitions - partition data read from '$partitions' env variable 298 * @param parts - number of partitions read from '$partitions' env variable 299 * @param gpt_head - pointer to GPT header data read from medium 300 * @param gpt_pte - pointer to GPT partition table enties read from medium 301 * 302 * @return - '0' on success, otherwise error 303 */ 304 int gpt_verify_partitions(block_dev_desc_t *dev_desc, 305 disk_partition_t *partitions, int parts, 306 gpt_header *gpt_head, gpt_entry **gpt_pte); 307 #endif 308 309 #endif /* _PART_H */ 310