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 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 hwpart; /* HW partition, e.g. for eMMC */ 20 unsigned char type; /* device type */ 21 unsigned char removable; /* removable device */ 22 #ifdef CONFIG_LBA48 23 unsigned char lba48; /* device can use 48bit addr (ATA/ATAPI v7) */ 24 #endif 25 lbaint_t lba; /* number of blocks */ 26 unsigned long blksz; /* block size */ 27 int log2blksz; /* for convenience: log2(blksz) */ 28 char vendor [40+1]; /* IDE model, SCSI Vendor */ 29 char product[20+1]; /* IDE Serial no, SCSI product */ 30 char revision[8+1]; /* firmware revision */ 31 unsigned long (*block_read)(block_dev_desc_t *block_dev, 32 lbaint_t start, 33 lbaint_t blkcnt, 34 void *buffer); 35 unsigned long (*block_write)(block_dev_desc_t *block_dev, 36 lbaint_t start, 37 lbaint_t blkcnt, 38 const void *buffer); 39 unsigned long (*block_erase)(block_dev_desc_t *block_dev, 40 lbaint_t start, 41 lbaint_t blkcnt); 42 void *priv; /* driver private struct pointer */ 43 }; 44 45 #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz)) 46 #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \ 47 (PAD_SIZE(size, block_dev_desc->blksz)) 48 #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \ 49 ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \ 50 ((x & 0xffff0000) ? 16 : 0)) 51 #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1)) 52 53 /* Interface types: */ 54 #define IF_TYPE_UNKNOWN 0 55 #define IF_TYPE_IDE 1 56 #define IF_TYPE_SCSI 2 57 #define IF_TYPE_ATAPI 3 58 #define IF_TYPE_USB 4 59 #define IF_TYPE_DOC 5 60 #define IF_TYPE_MMC 6 61 #define IF_TYPE_SD 7 62 #define IF_TYPE_SATA 8 63 #define IF_TYPE_HOST 9 64 #define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */ 65 66 /* Part types */ 67 #define PART_TYPE_UNKNOWN 0x00 68 #define PART_TYPE_MAC 0x01 69 #define PART_TYPE_DOS 0x02 70 #define PART_TYPE_ISO 0x03 71 #define PART_TYPE_AMIGA 0x04 72 #define PART_TYPE_EFI 0x05 73 74 /* 75 * Type string for U-Boot bootable partitions 76 */ 77 #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */ 78 #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */ 79 80 /* device types */ 81 #define DEV_TYPE_UNKNOWN 0xff /* not connected */ 82 #define DEV_TYPE_HARDDISK 0x00 /* harddisk */ 83 #define DEV_TYPE_TAPE 0x01 /* Tape */ 84 #define DEV_TYPE_CDROM 0x05 /* CD-ROM */ 85 #define DEV_TYPE_OPDISK 0x07 /* optical disk */ 86 87 typedef struct disk_partition { 88 lbaint_t start; /* # of first block in partition */ 89 lbaint_t size; /* number of blocks in partition */ 90 ulong blksz; /* block size in bytes */ 91 uchar name[32]; /* partition name */ 92 uchar type[32]; /* string type description */ 93 int bootable; /* Active/Bootable flag is set */ 94 #ifdef CONFIG_PARTITION_UUIDS 95 char uuid[37]; /* filesystem UUID as string, if exists */ 96 #endif 97 #ifdef CONFIG_PARTITION_TYPE_GUID 98 char type_guid[37]; /* type GUID as string, if exists */ 99 #endif 100 } disk_partition_t; 101 102 /* Misc _get_dev functions */ 103 #ifdef CONFIG_PARTITIONS 104 block_dev_desc_t *get_dev(const char *ifname, int dev); 105 block_dev_desc_t* ide_get_dev(int dev); 106 block_dev_desc_t* sata_get_dev(int dev); 107 block_dev_desc_t* scsi_get_dev(int dev); 108 block_dev_desc_t* usb_stor_get_dev(int dev); 109 block_dev_desc_t* mmc_get_dev(int dev); 110 int mmc_select_hwpart(int dev_num, int hwpart); 111 block_dev_desc_t* systemace_get_dev(int dev); 112 block_dev_desc_t* mg_disk_get_dev(int dev); 113 block_dev_desc_t *host_get_dev(int dev); 114 int host_get_dev_err(int dev, block_dev_desc_t **blk_devp); 115 116 /* disk/part.c */ 117 int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 118 void print_part (block_dev_desc_t *dev_desc); 119 void init_part (block_dev_desc_t *dev_desc); 120 void dev_print(block_dev_desc_t *dev_desc); 121 int get_device(const char *ifname, const char *dev_str, 122 block_dev_desc_t **dev_desc); 123 int get_device_and_partition(const char *ifname, const char *dev_part_str, 124 block_dev_desc_t **dev_desc, 125 disk_partition_t *info, int allow_whole_dev); 126 #else 127 static inline block_dev_desc_t *get_dev(const char *ifname, int dev) 128 { return NULL; } 129 static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; } 130 static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; } 131 static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; } 132 static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; } 133 static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; } 134 static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; } 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 static inline block_dev_desc_t *host_get_dev(int dev) { return NULL; } 138 139 static inline int get_partition_info (block_dev_desc_t * dev_desc, int part, 140 disk_partition_t *info) { return -1; } 141 static inline void print_part (block_dev_desc_t *dev_desc) {} 142 static inline void init_part (block_dev_desc_t *dev_desc) {} 143 static inline void dev_print(block_dev_desc_t *dev_desc) {} 144 static inline int get_device(const char *ifname, const char *dev_str, 145 block_dev_desc_t **dev_desc) 146 { return -1; } 147 static inline int get_device_and_partition(const char *ifname, 148 const char *dev_part_str, 149 block_dev_desc_t **dev_desc, 150 disk_partition_t *info, 151 int allow_whole_dev) 152 { *dev_desc = NULL; return -1; } 153 #endif 154 155 #ifdef CONFIG_MAC_PARTITION 156 /* disk/part_mac.c */ 157 int get_partition_info_mac (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 158 void print_part_mac (block_dev_desc_t *dev_desc); 159 int test_part_mac (block_dev_desc_t *dev_desc); 160 #endif 161 162 #ifdef CONFIG_DOS_PARTITION 163 /* disk/part_dos.c */ 164 int get_partition_info_dos (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 165 void print_part_dos (block_dev_desc_t *dev_desc); 166 int test_part_dos (block_dev_desc_t *dev_desc); 167 #endif 168 169 #ifdef CONFIG_ISO_PARTITION 170 /* disk/part_iso.c */ 171 int get_partition_info_iso (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 172 void print_part_iso (block_dev_desc_t *dev_desc); 173 int test_part_iso (block_dev_desc_t *dev_desc); 174 #endif 175 176 #ifdef CONFIG_AMIGA_PARTITION 177 /* disk/part_amiga.c */ 178 int get_partition_info_amiga (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 179 void print_part_amiga (block_dev_desc_t *dev_desc); 180 int test_part_amiga (block_dev_desc_t *dev_desc); 181 #endif 182 183 #ifdef CONFIG_EFI_PARTITION 184 #include <part_efi.h> 185 /* disk/part_efi.c */ 186 int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 187 /** 188 * get_partition_info_efi_by_name() - Find the specified GPT partition table entry 189 * 190 * @param dev_desc - block device descriptor 191 * @param gpt_name - the specified table entry name 192 * @param info - returns the disk partition info 193 * 194 * @return - '0' on match, '-1' on no match, otherwise error 195 */ 196 int get_partition_info_efi_by_name(block_dev_desc_t *dev_desc, 197 const char *name, disk_partition_t *info); 198 void print_part_efi (block_dev_desc_t *dev_desc); 199 int test_part_efi (block_dev_desc_t *dev_desc); 200 201 /** 202 * write_gpt_table() - Write the GUID Partition Table to disk 203 * 204 * @param dev_desc - block device descriptor 205 * @param gpt_h - pointer to GPT header representation 206 * @param gpt_e - pointer to GPT partition table entries 207 * 208 * @return - zero on success, otherwise error 209 */ 210 int write_gpt_table(block_dev_desc_t *dev_desc, 211 gpt_header *gpt_h, gpt_entry *gpt_e); 212 213 /** 214 * gpt_fill_pte(): Fill the GPT partition table entry 215 * 216 * @param gpt_h - GPT header representation 217 * @param gpt_e - GPT partition table entries 218 * @param partitions - list of partitions 219 * @param parts - number of partitions 220 * 221 * @return zero on success 222 */ 223 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e, 224 disk_partition_t *partitions, int parts); 225 226 /** 227 * gpt_fill_header(): Fill the GPT header 228 * 229 * @param dev_desc - block device descriptor 230 * @param gpt_h - GPT header representation 231 * @param str_guid - disk guid string representation 232 * @param parts_count - number of partitions 233 * 234 * @return - error on str_guid conversion error 235 */ 236 int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h, 237 char *str_guid, int parts_count); 238 239 /** 240 * gpt_restore(): Restore GPT partition table 241 * 242 * @param dev_desc - block device descriptor 243 * @param str_disk_guid - disk GUID 244 * @param partitions - list of partitions 245 * @param parts - number of partitions 246 * 247 * @return zero on success 248 */ 249 int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid, 250 disk_partition_t *partitions, const int parts_count); 251 252 /** 253 * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid 254 * 255 * @param dev_desc - block device descriptor 256 * @param buf - buffer which contains the MBR and Primary GPT info 257 * 258 * @return - '0' on success, otherwise error 259 */ 260 int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf); 261 262 /** 263 * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT 264 * 265 * @param dev_desc - block device descriptor 266 * @param buf - buffer which contains the MBR and Primary GPT info 267 * 268 * @return - '0' on success, otherwise error 269 */ 270 int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf); 271 272 /** 273 * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header 274 * and partition table entries (PTE) 275 * 276 * As a side effect if sets gpt_head and gpt_pte so they point to GPT data. 277 * 278 * @param dev_desc - block device descriptor 279 * @param gpt_head - pointer to GPT header data read from medium 280 * @param gpt_pte - pointer to GPT partition table enties read from medium 281 * 282 * @return - '0' on success, otherwise error 283 */ 284 int gpt_verify_headers(block_dev_desc_t *dev_desc, gpt_header *gpt_head, 285 gpt_entry **gpt_pte); 286 287 /** 288 * gpt_verify_partitions() - Function to check if partitions' name, start and 289 * size correspond to '$partitions' env variable 290 * 291 * This function checks if on medium stored GPT data is in sync with information 292 * provided in '$partitions' environment variable. Specificially, name, start 293 * and size of the partition is checked. 294 * 295 * @param dev_desc - block device descriptor 296 * @param partitions - partition data read from '$partitions' env variable 297 * @param parts - number of partitions read from '$partitions' env variable 298 * @param gpt_head - pointer to GPT header data read from medium 299 * @param gpt_pte - pointer to GPT partition table enties read from medium 300 * 301 * @return - '0' on success, otherwise error 302 */ 303 int gpt_verify_partitions(block_dev_desc_t *dev_desc, 304 disk_partition_t *partitions, int parts, 305 gpt_header *gpt_head, gpt_entry **gpt_pte); 306 #endif 307 308 #endif /* _PART_H */ 309