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 { 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 type; /* device type */ 20 unsigned char removable; /* removable device */ 21 #ifdef CONFIG_LBA48 22 unsigned char lba48; /* device can use 48bit addr (ATA/ATAPI v7) */ 23 #endif 24 lbaint_t lba; /* number of blocks */ 25 unsigned long blksz; /* block size */ 26 int log2blksz; /* for convenience: log2(blksz) */ 27 char vendor [40+1]; /* IDE model, SCSI Vendor */ 28 char product[20+1]; /* IDE Serial no, SCSI product */ 29 char revision[8+1]; /* firmware revision */ 30 unsigned long (*block_read)(int dev, 31 lbaint_t start, 32 lbaint_t blkcnt, 33 void *buffer); 34 unsigned long (*block_write)(int dev, 35 lbaint_t start, 36 lbaint_t blkcnt, 37 const void *buffer); 38 unsigned long (*block_erase)(int dev, 39 lbaint_t start, 40 lbaint_t blkcnt); 41 void *priv; /* driver private struct pointer */ 42 }block_dev_desc_t; 43 44 #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz)) 45 #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \ 46 (PAD_SIZE(size, block_dev_desc->blksz)) 47 #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \ 48 ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \ 49 ((x & 0xffff0000) ? 16 : 0)) 50 #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1)) 51 52 /* Interface types: */ 53 #define IF_TYPE_UNKNOWN 0 54 #define IF_TYPE_IDE 1 55 #define IF_TYPE_SCSI 2 56 #define IF_TYPE_ATAPI 3 57 #define IF_TYPE_USB 4 58 #define IF_TYPE_DOC 5 59 #define IF_TYPE_MMC 6 60 #define IF_TYPE_SD 7 61 #define IF_TYPE_SATA 8 62 #define IF_TYPE_HOST 9 63 #define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */ 64 65 /* Part types */ 66 #define PART_TYPE_UNKNOWN 0x00 67 #define PART_TYPE_MAC 0x01 68 #define PART_TYPE_DOS 0x02 69 #define PART_TYPE_ISO 0x03 70 #define PART_TYPE_AMIGA 0x04 71 #define PART_TYPE_EFI 0x05 72 73 /* 74 * Type string for U-Boot bootable partitions 75 */ 76 #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */ 77 #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */ 78 79 /* device types */ 80 #define DEV_TYPE_UNKNOWN 0xff /* not connected */ 81 #define DEV_TYPE_HARDDISK 0x00 /* harddisk */ 82 #define DEV_TYPE_TAPE 0x01 /* Tape */ 83 #define DEV_TYPE_CDROM 0x05 /* CD-ROM */ 84 #define DEV_TYPE_OPDISK 0x07 /* optical disk */ 85 86 typedef struct disk_partition { 87 lbaint_t start; /* # of first block in partition */ 88 lbaint_t size; /* number of blocks in partition */ 89 ulong blksz; /* block size in bytes */ 90 uchar name[32]; /* partition name */ 91 uchar type[32]; /* string type description */ 92 int bootable; /* Active/Bootable flag is set */ 93 #ifdef CONFIG_PARTITION_UUIDS 94 char uuid[37]; /* filesystem UUID as string, if exists */ 95 #endif 96 #ifdef CONFIG_PARTITION_TYPE_GUID 97 char type_guid[37]; /* type GUID as string, if exists */ 98 #endif 99 } disk_partition_t; 100 101 /* Misc _get_dev functions */ 102 #ifdef CONFIG_PARTITIONS 103 block_dev_desc_t *get_dev(const char *ifname, int dev); 104 block_dev_desc_t* ide_get_dev(int dev); 105 block_dev_desc_t* sata_get_dev(int dev); 106 block_dev_desc_t* scsi_get_dev(int dev); 107 block_dev_desc_t* usb_stor_get_dev(int dev); 108 block_dev_desc_t* mmc_get_dev(int dev); 109 int mmc_select_hwpart(int dev_num, int hwpart); 110 block_dev_desc_t* systemace_get_dev(int dev); 111 block_dev_desc_t* mg_disk_get_dev(int dev); 112 block_dev_desc_t *host_get_dev(int dev); 113 int host_get_dev_err(int dev, block_dev_desc_t **blk_devp); 114 115 /* disk/part.c */ 116 int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t *info); 117 void print_part (block_dev_desc_t *dev_desc); 118 void init_part (block_dev_desc_t *dev_desc); 119 void dev_print(block_dev_desc_t *dev_desc); 120 int get_device(const char *ifname, const char *dev_str, 121 block_dev_desc_t **dev_desc); 122 int get_device_and_partition(const char *ifname, const char *dev_part_str, 123 block_dev_desc_t **dev_desc, 124 disk_partition_t *info, int allow_whole_dev); 125 #else 126 static inline block_dev_desc_t *get_dev(const char *ifname, int dev) 127 { return NULL; } 128 static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; } 129 static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; } 130 static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; } 131 static inline block_dev_desc_t* usb_stor_get_dev(int dev) { return NULL; } 132 static inline block_dev_desc_t* mmc_get_dev(int dev) { return NULL; } 133 static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; } 134 static inline block_dev_desc_t* systemace_get_dev(int dev) { return NULL; } 135 static inline block_dev_desc_t* mg_disk_get_dev(int dev) { return NULL; } 136 static inline block_dev_desc_t *host_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 /** 187 * get_partition_info_efi_by_name() - Find the specified GPT partition table entry 188 * 189 * @param dev_desc - block device descriptor 190 * @param gpt_name - the specified table entry name 191 * @param info - returns the disk partition info 192 * 193 * @return - '0' on match, '-1' on no match, otherwise error 194 */ 195 int get_partition_info_efi_by_name(block_dev_desc_t *dev_desc, 196 const char *name, disk_partition_t *info); 197 void print_part_efi (block_dev_desc_t *dev_desc); 198 int test_part_efi (block_dev_desc_t *dev_desc); 199 200 /** 201 * write_gpt_table() - Write the GUID Partition Table to disk 202 * 203 * @param dev_desc - block device descriptor 204 * @param gpt_h - pointer to GPT header representation 205 * @param gpt_e - pointer to GPT partition table entries 206 * 207 * @return - zero on success, otherwise error 208 */ 209 int write_gpt_table(block_dev_desc_t *dev_desc, 210 gpt_header *gpt_h, gpt_entry *gpt_e); 211 212 /** 213 * gpt_fill_pte(): Fill the GPT partition table entry 214 * 215 * @param gpt_h - GPT header representation 216 * @param gpt_e - GPT partition table entries 217 * @param partitions - list of partitions 218 * @param parts - number of partitions 219 * 220 * @return zero on success 221 */ 222 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e, 223 disk_partition_t *partitions, int parts); 224 225 /** 226 * gpt_fill_header(): Fill the GPT header 227 * 228 * @param dev_desc - block device descriptor 229 * @param gpt_h - GPT header representation 230 * @param str_guid - disk guid string representation 231 * @param parts_count - number of partitions 232 * 233 * @return - error on str_guid conversion error 234 */ 235 int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h, 236 char *str_guid, int parts_count); 237 238 /** 239 * gpt_restore(): Restore GPT partition table 240 * 241 * @param dev_desc - block device descriptor 242 * @param str_disk_guid - disk GUID 243 * @param partitions - list of partitions 244 * @param parts - number of partitions 245 * 246 * @return zero on success 247 */ 248 int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid, 249 disk_partition_t *partitions, const int parts_count); 250 251 /** 252 * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid 253 * 254 * @param dev_desc - block device descriptor 255 * @param buf - buffer which contains the MBR and Primary GPT info 256 * 257 * @return - '0' on success, otherwise error 258 */ 259 int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf); 260 261 /** 262 * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT 263 * 264 * @param dev_desc - block device descriptor 265 * @param buf - buffer which contains the MBR and Primary GPT info 266 * 267 * @return - '0' on success, otherwise error 268 */ 269 int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf); 270 271 /** 272 * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header 273 * and partition table entries (PTE) 274 * 275 * As a side effect if sets gpt_head and gpt_pte so they point to GPT data. 276 * 277 * @param dev_desc - block device descriptor 278 * @param gpt_head - pointer to GPT header data read from medium 279 * @param gpt_pte - pointer to GPT partition table enties read from medium 280 * 281 * @return - '0' on success, otherwise error 282 */ 283 int gpt_verify_headers(block_dev_desc_t *dev_desc, gpt_header *gpt_head, 284 gpt_entry **gpt_pte); 285 286 /** 287 * gpt_verify_partitions() - Function to check if partitions' name, start and 288 * size correspond to '$partitions' env variable 289 * 290 * This function checks if on medium stored GPT data is in sync with information 291 * provided in '$partitions' environment variable. Specificially, name, start 292 * and size of the partition is checked. 293 * 294 * @param dev_desc - block device descriptor 295 * @param partitions - partition data read from '$partitions' env variable 296 * @param parts - number of partitions read from '$partitions' env variable 297 * @param gpt_head - pointer to GPT header data read from medium 298 * @param gpt_pte - pointer to GPT partition table enties read from medium 299 * 300 * @return - '0' on success, otherwise error 301 */ 302 int gpt_verify_partitions(block_dev_desc_t *dev_desc, 303 disk_partition_t *partitions, int parts, 304 gpt_header *gpt_head, gpt_entry **gpt_pte); 305 #endif 306 307 #endif /* _PART_H */ 308