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 hwpart; /* HW partition, e.g. for eMMC */ 22 unsigned char type; /* device type */ 23 unsigned char removable; /* removable device */ 24 #ifdef CONFIG_LBA48 25 unsigned char lba48; /* device can use 48bit addr (ATA/ATAPI v7) */ 26 #endif 27 lbaint_t lba; /* number of blocks */ 28 unsigned long blksz; /* block size */ 29 int log2blksz; /* for convenience: log2(blksz) */ 30 char vendor [40+1]; /* IDE model, SCSI Vendor */ 31 char product[20+1]; /* IDE Serial no, SCSI product */ 32 char revision[8+1]; /* firmware revision */ 33 unsigned long (*block_read)(block_dev_desc_t *block_dev, 34 lbaint_t start, 35 lbaint_t blkcnt, 36 void *buffer); 37 unsigned long (*block_write)(block_dev_desc_t *block_dev, 38 lbaint_t start, 39 lbaint_t blkcnt, 40 const void *buffer); 41 unsigned long (*block_erase)(block_dev_desc_t *block_dev, 42 lbaint_t start, 43 lbaint_t blkcnt); 44 void *priv; /* driver private struct pointer */ 45 }; 46 47 #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz)) 48 #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \ 49 (PAD_SIZE(size, block_dev_desc->blksz)) 50 #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \ 51 ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \ 52 ((x & 0xffff0000) ? 16 : 0)) 53 #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1)) 54 55 /* Interface types: */ 56 #define IF_TYPE_UNKNOWN 0 57 #define IF_TYPE_IDE 1 58 #define IF_TYPE_SCSI 2 59 #define IF_TYPE_ATAPI 3 60 #define IF_TYPE_USB 4 61 #define IF_TYPE_DOC 5 62 #define IF_TYPE_MMC 6 63 #define IF_TYPE_SD 7 64 #define IF_TYPE_SATA 8 65 #define IF_TYPE_HOST 9 66 #define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */ 67 68 /* Part types */ 69 #define PART_TYPE_UNKNOWN 0x00 70 #define PART_TYPE_MAC 0x01 71 #define PART_TYPE_DOS 0x02 72 #define PART_TYPE_ISO 0x03 73 #define PART_TYPE_AMIGA 0x04 74 #define PART_TYPE_EFI 0x05 75 76 /* 77 * Type string for U-Boot bootable partitions 78 */ 79 #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */ 80 #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */ 81 82 /* device types */ 83 #define DEV_TYPE_UNKNOWN 0xff /* not connected */ 84 #define DEV_TYPE_HARDDISK 0x00 /* harddisk */ 85 #define DEV_TYPE_TAPE 0x01 /* Tape */ 86 #define DEV_TYPE_CDROM 0x05 /* CD-ROM */ 87 #define DEV_TYPE_OPDISK 0x07 /* optical disk */ 88 89 typedef struct disk_partition { 90 lbaint_t start; /* # of first block in partition */ 91 lbaint_t size; /* number of blocks in partition */ 92 ulong blksz; /* block size in bytes */ 93 uchar name[32]; /* partition name */ 94 uchar type[32]; /* string type description */ 95 int bootable; /* Active/Bootable flag is set */ 96 #ifdef CONFIG_PARTITION_UUIDS 97 char uuid[37]; /* filesystem UUID as string, if exists */ 98 #endif 99 #ifdef CONFIG_PARTITION_TYPE_GUID 100 char type_guid[37]; /* type GUID as string, if exists */ 101 #endif 102 } disk_partition_t; 103 104 /* Misc _get_dev functions */ 105 #ifdef CONFIG_PARTITIONS 106 block_dev_desc_t *get_dev(const char *ifname, int dev); 107 block_dev_desc_t* ide_get_dev(int dev); 108 block_dev_desc_t* sata_get_dev(int dev); 109 block_dev_desc_t* scsi_get_dev(int dev); 110 block_dev_desc_t* usb_stor_get_dev(int dev); 111 block_dev_desc_t* mmc_get_dev(int dev); 112 int mmc_select_hwpart(int dev_num, int hwpart); 113 block_dev_desc_t* systemace_get_dev(int dev); 114 block_dev_desc_t* mg_disk_get_dev(int dev); 115 block_dev_desc_t *host_get_dev(int dev); 116 int host_get_dev_err(int dev, block_dev_desc_t **blk_devp); 117 118 /* disk/part.c */ 119 int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 120 void print_part (block_dev_desc_t *dev_desc); 121 void init_part (block_dev_desc_t *dev_desc); 122 void dev_print(block_dev_desc_t *dev_desc); 123 int get_device(const char *ifname, const char *dev_str, 124 block_dev_desc_t **dev_desc); 125 int get_device_and_partition(const char *ifname, const char *dev_part_str, 126 block_dev_desc_t **dev_desc, 127 disk_partition_t *info, int allow_whole_dev); 128 #else 129 static inline block_dev_desc_t *get_dev(const char *ifname, int dev) 130 { return NULL; } 131 static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; } 132 static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; } 133 static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; } 134 static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; } 135 static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; } 136 static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; } 137 static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; } 138 static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; } 139 static inline block_dev_desc_t *host_get_dev(int dev) { return NULL; } 140 141 static inline int get_partition_info (block_dev_desc_t * dev_desc, int part, 142 disk_partition_t *info) { return -1; } 143 static inline void print_part (block_dev_desc_t *dev_desc) {} 144 static inline void init_part (block_dev_desc_t *dev_desc) {} 145 static inline void dev_print(block_dev_desc_t *dev_desc) {} 146 static inline int get_device(const char *ifname, const char *dev_str, 147 block_dev_desc_t **dev_desc) 148 { return -1; } 149 static inline int get_device_and_partition(const char *ifname, 150 const char *dev_part_str, 151 block_dev_desc_t **dev_desc, 152 disk_partition_t *info, 153 int allow_whole_dev) 154 { *dev_desc = NULL; return -1; } 155 #endif 156 157 #ifdef CONFIG_MAC_PARTITION 158 /* disk/part_mac.c */ 159 int get_partition_info_mac (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 160 void print_part_mac (block_dev_desc_t *dev_desc); 161 int test_part_mac (block_dev_desc_t *dev_desc); 162 #endif 163 164 #ifdef CONFIG_DOS_PARTITION 165 /* disk/part_dos.c */ 166 int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 167 void print_part_dos (block_dev_desc_t *dev_desc); 168 int test_part_dos (block_dev_desc_t *dev_desc); 169 #endif 170 171 #ifdef CONFIG_ISO_PARTITION 172 /* disk/part_iso.c */ 173 int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 174 void print_part_iso (block_dev_desc_t *dev_desc); 175 int test_part_iso (block_dev_desc_t *dev_desc); 176 #endif 177 178 #ifdef CONFIG_AMIGA_PARTITION 179 /* disk/part_amiga.c */ 180 int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 181 void print_part_amiga (block_dev_desc_t *dev_desc); 182 int test_part_amiga (block_dev_desc_t *dev_desc); 183 #endif 184 185 #ifdef CONFIG_EFI_PARTITION 186 #include <part_efi.h> 187 /* disk/part_efi.c */ 188 int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 189 /** 190 * get_partition_info_efi_by_name() - Find the specified GPT partition table entry 191 * 192 * @param dev_desc - block device descriptor 193 * @param gpt_name - the specified table entry name 194 * @param info - returns the disk partition info 195 * 196 * @return - '0' on match, '-1' on no match, otherwise error 197 */ 198 int get_partition_info_efi_by_name(block_dev_desc_t *dev_desc, 199 const char *name, disk_partition_t *info); 200 void print_part_efi (block_dev_desc_t *dev_desc); 201 int test_part_efi (block_dev_desc_t *dev_desc); 202 203 /** 204 * write_gpt_table() - Write the GUID Partition Table to disk 205 * 206 * @param dev_desc - block device descriptor 207 * @param gpt_h - pointer to GPT header representation 208 * @param gpt_e - pointer to GPT partition table entries 209 * 210 * @return - zero on success, otherwise error 211 */ 212 int write_gpt_table(block_dev_desc_t *dev_desc, 213 gpt_header *gpt_h, gpt_entry *gpt_e); 214 215 /** 216 * gpt_fill_pte(): Fill the GPT partition table entry 217 * 218 * @param gpt_h - GPT header representation 219 * @param gpt_e - GPT partition table entries 220 * @param partitions - list of partitions 221 * @param parts - number of partitions 222 * 223 * @return zero on success 224 */ 225 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e, 226 disk_partition_t *partitions, int parts); 227 228 /** 229 * gpt_fill_header(): Fill the GPT header 230 * 231 * @param dev_desc - block device descriptor 232 * @param gpt_h - GPT header representation 233 * @param str_guid - disk guid string representation 234 * @param parts_count - number of partitions 235 * 236 * @return - error on str_guid conversion error 237 */ 238 int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h, 239 char *str_guid, int parts_count); 240 241 /** 242 * gpt_restore(): Restore GPT partition table 243 * 244 * @param dev_desc - block device descriptor 245 * @param str_disk_guid - disk GUID 246 * @param partitions - list of partitions 247 * @param parts - number of partitions 248 * 249 * @return zero on success 250 */ 251 int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid, 252 disk_partition_t *partitions, const int parts_count); 253 254 /** 255 * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid 256 * 257 * @param dev_desc - block device descriptor 258 * @param buf - buffer which contains the MBR and Primary GPT info 259 * 260 * @return - '0' on success, otherwise error 261 */ 262 int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf); 263 264 /** 265 * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT 266 * 267 * @param dev_desc - block device descriptor 268 * @param buf - buffer which contains the MBR and Primary GPT info 269 * 270 * @return - '0' on success, otherwise error 271 */ 272 int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf); 273 274 /** 275 * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header 276 * and partition table entries (PTE) 277 * 278 * As a side effect if sets gpt_head and gpt_pte so they point to GPT data. 279 * 280 * @param dev_desc - block device descriptor 281 * @param gpt_head - pointer to GPT header data read from medium 282 * @param gpt_pte - pointer to GPT partition table enties read from medium 283 * 284 * @return - '0' on success, otherwise error 285 */ 286 int gpt_verify_headers(block_dev_desc_t *dev_desc, gpt_header *gpt_head, 287 gpt_entry **gpt_pte); 288 289 /** 290 * gpt_verify_partitions() - Function to check if partitions' name, start and 291 * size correspond to '$partitions' env variable 292 * 293 * This function checks if on medium stored GPT data is in sync with information 294 * provided in '$partitions' environment variable. Specificially, name, start 295 * and size of the partition is checked. 296 * 297 * @param dev_desc - block device descriptor 298 * @param partitions - partition data read from '$partitions' env variable 299 * @param parts - number of partitions read from '$partitions' env variable 300 * @param gpt_head - pointer to GPT header data read from medium 301 * @param gpt_pte - pointer to GPT partition table enties read from medium 302 * 303 * @return - '0' on success, otherwise error 304 */ 305 int gpt_verify_partitions(block_dev_desc_t *dev_desc, 306 disk_partition_t *partitions, int parts, 307 gpt_header *gpt_head, gpt_entry **gpt_pte); 308 #endif 309 310 #endif /* _PART_H */ 311