2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
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 */
22 unsigned char lba48; /* device can use 48bit addr (ATA/ATAPI v7) */
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,
34 unsigned long (*block_write)(int dev,
38 unsigned long (*block_erase)(int dev,
41 void *priv; /* driver private struct pointer */
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))
52 /* Interface types: */
53 #define IF_TYPE_UNKNOWN 0
55 #define IF_TYPE_SCSI 2
56 #define IF_TYPE_ATAPI 3
61 #define IF_TYPE_SATA 8
62 #define IF_TYPE_HOST 9
63 #define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */
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
74 * Type string for U-Boot bootable partitions
76 #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */
77 #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */
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 */
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 */
96 #ifdef CONFIG_PARTITION_TYPE_GUID
97 char type_guid[37]; /* type GUID as string, if exists */
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);
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);
126 static inline block_dev_desc_t *get_dev(const char *ifname, int dev)
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; }
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)
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,
151 { *dev_desc = NULL; return -1; }
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);
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);
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);
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);
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);
187 * get_partition_info_efi_by_name() - Find the specified GPT partition table entry
189 * @param dev_desc - block device descriptor
190 * @param gpt_name - the specified table entry name
191 * @param info - returns the disk partition info
193 * @return - '0' on match, '-1' on no match, otherwise error
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);
201 * write_gpt_table() - Write the GUID Partition Table to disk
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
207 * @return - zero on success, otherwise error
209 int write_gpt_table(block_dev_desc_t *dev_desc,
210 gpt_header *gpt_h, gpt_entry *gpt_e);
213 * gpt_fill_pte(): Fill the GPT partition table entry
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
220 * @return zero on success
222 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
223 disk_partition_t *partitions, int parts);
226 * gpt_fill_header(): Fill the GPT header
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
233 * @return - error on str_guid conversion error
235 int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h,
236 char *str_guid, int parts_count);
239 * gpt_restore(): Restore GPT partition table
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
246 * @return zero on success
248 int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid,
249 disk_partition_t *partitions, const int parts_count);
252 * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid
254 * @param dev_desc - block device descriptor
255 * @param buf - buffer which contains the MBR and Primary GPT info
257 * @return - '0' on success, otherwise error
259 int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf);
262 * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT
264 * @param dev_desc - block device descriptor
265 * @param buf - buffer which contains the MBR and Primary GPT info
267 * @return - '0' on success, otherwise error
269 int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf);
272 * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header
273 * and partition table entries (PTE)
275 * As a side effect if sets gpt_head and gpt_pte so they point to GPT data.
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
281 * @return - '0' on success, otherwise error
283 int gpt_verify_headers(block_dev_desc_t *dev_desc, gpt_header *gpt_head,
284 gpt_entry **gpt_pte);
287 * gpt_verify_partitions() - Function to check if partitions' name, start and
288 * size correspond to '$partitions' env variable
290 * This function checks if on medium stored GPT data is in sync with information
291 * provided in '$partitions' environment variable. Specificially, name, start
292 * and size of the partition is checked.
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
300 * @return - '0' on success, otherwise error
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);