Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 2 | /* |
wdenk | c35ba4e | 2004-03-14 22:25:36 +0000 | [diff] [blame] | 3 | * (C) Copyright 2000-2004 |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 5 | */ |
| 6 | #ifndef _PART_H |
| 7 | #define _PART_H |
Grant Likely | ffc2dd7 | 2007-02-20 09:04:34 +0100 | [diff] [blame] | 8 | |
Simon Glass | ac8162f | 2016-02-29 15:25:39 -0700 | [diff] [blame] | 9 | #include <blk.h> |
wdenk | 0593920 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 10 | #include <ide.h> |
Alison Chaiken | 2cb47e6 | 2017-06-25 16:43:17 -0700 | [diff] [blame] | 11 | #include <uuid.h> |
Corneliu Doban | 0c6776c | 2020-11-09 11:49:16 +0530 | [diff] [blame] | 12 | #include <linker_lists.h> |
AKASHI Takahiro | 7780a93 | 2022-04-19 10:01:52 +0900 | [diff] [blame] | 13 | #include <linux/errno.h> |
Alison Chaiken | f04d4b5 | 2017-07-04 11:18:50 -0700 | [diff] [blame] | 14 | #include <linux/list.h> |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 15 | |
Alexander Graf | 3b3d915 | 2016-03-04 01:09:56 +0100 | [diff] [blame] | 16 | struct block_drvr { |
| 17 | char *name; |
Alexander Graf | 3b3d915 | 2016-03-04 01:09:56 +0100 | [diff] [blame] | 18 | int (*select_hwpart)(int dev_num, int hwpart); |
| 19 | }; |
| 20 | |
Egbert Eich | 2eec2ab | 2013-04-09 21:11:56 +0000 | [diff] [blame] | 21 | #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \ |
| 22 | ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \ |
| 23 | ((x & 0xffff0000) ? 16 : 0)) |
| 24 | #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1)) |
Egbert Eich | 071e423 | 2013-04-09 06:03:36 +0000 | [diff] [blame] | 25 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 26 | /* Part types */ |
wdenk | c35ba4e | 2004-03-14 22:25:36 +0000 | [diff] [blame] | 27 | #define PART_TYPE_UNKNOWN 0x00 |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 28 | #define PART_TYPE_MAC 0x01 |
| 29 | #define PART_TYPE_DOS 0x02 |
| 30 | #define PART_TYPE_ISO 0x03 |
wdenk | c35ba4e | 2004-03-14 22:25:36 +0000 | [diff] [blame] | 31 | #define PART_TYPE_AMIGA 0x04 |
richardretanubun | e674559 | 2008-09-26 11:13:22 -0400 | [diff] [blame] | 32 | #define PART_TYPE_EFI 0x05 |
wdenk | 452cfd6 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 33 | |
Petr Kulhavy | 712257e | 2016-09-09 10:27:15 +0200 | [diff] [blame] | 34 | /* maximum number of partition entries supported by search */ |
| 35 | #define DOS_ENTRY_NUMBERS 8 |
| 36 | #define ISO_ENTRY_NUMBERS 64 |
| 37 | #define MAC_ENTRY_NUMBERS 64 |
| 38 | #define AMIGA_ENTRY_NUMBERS 8 |
wdenk | f12e396 | 2003-06-29 21:03:46 +0000 | [diff] [blame] | 39 | /* |
| 40 | * Type string for U-Boot bootable partitions |
| 41 | */ |
| 42 | #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */ |
| 43 | #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */ |
| 44 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 45 | /* device types */ |
wdenk | f12e396 | 2003-06-29 21:03:46 +0000 | [diff] [blame] | 46 | #define DEV_TYPE_UNKNOWN 0xff /* not connected */ |
| 47 | #define DEV_TYPE_HARDDISK 0x00 /* harddisk */ |
wdenk | c35ba4e | 2004-03-14 22:25:36 +0000 | [diff] [blame] | 48 | #define DEV_TYPE_TAPE 0x01 /* Tape */ |
| 49 | #define DEV_TYPE_CDROM 0x05 /* CD-ROM */ |
| 50 | #define DEV_TYPE_OPDISK 0x07 /* optical disk */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 51 | |
Alison Chaiken | 462e232 | 2017-06-25 16:43:18 -0700 | [diff] [blame] | 52 | #define PART_NAME_LEN 32 |
| 53 | #define PART_TYPE_LEN 32 |
Heinrich Schuchardt | 72d7883 | 2022-01-11 16:03:38 +0100 | [diff] [blame] | 54 | #define MAX_SEARCH_PARTITIONS 128 |
Alison Chaiken | 462e232 | 2017-06-25 16:43:18 -0700 | [diff] [blame] | 55 | |
Heinrich Schuchardt | 59a860d | 2020-03-19 13:49:34 +0100 | [diff] [blame] | 56 | #define PART_BOOTABLE ((int)BIT(0)) |
| 57 | #define PART_EFI_SYSTEM_PARTITION ((int)BIT(1)) |
| 58 | |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 59 | struct disk_partition { |
Frederic Leroy | e7ee028 | 2013-06-26 18:11:25 +0200 | [diff] [blame] | 60 | lbaint_t start; /* # of first block in partition */ |
| 61 | lbaint_t size; /* number of blocks in partition */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 62 | ulong blksz; /* block size in bytes */ |
Alison Chaiken | 462e232 | 2017-06-25 16:43:18 -0700 | [diff] [blame] | 63 | uchar name[PART_NAME_LEN]; /* partition name */ |
| 64 | uchar type[PART_TYPE_LEN]; /* string type description */ |
Heinrich Schuchardt | 59a860d | 2020-03-19 13:49:34 +0100 | [diff] [blame] | 65 | /* |
| 66 | * The bootable is a bitmask with the following fields: |
| 67 | * |
| 68 | * PART_BOOTABLE the MBR bootable flag is set |
| 69 | * PART_EFI_SYSTEM_PARTITION the partition is an EFI system partition |
| 70 | */ |
| 71 | int bootable; |
Patrick Delaunay | 7328709 | 2017-01-27 11:00:42 +0100 | [diff] [blame] | 72 | #if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
Alison Chaiken | 2cb47e6 | 2017-06-25 16:43:17 -0700 | [diff] [blame] | 73 | char uuid[UUID_STR_LEN + 1]; /* filesystem UUID as string, if exists */ |
Stephen Warren | c6c7b7a | 2012-09-21 09:50:59 +0000 | [diff] [blame] | 74 | #endif |
Patrick Delaunay | 8248c8d | 2015-10-27 11:00:27 +0100 | [diff] [blame] | 75 | #ifdef CONFIG_PARTITION_TYPE_GUID |
Alison Chaiken | 2cb47e6 | 2017-06-25 16:43:17 -0700 | [diff] [blame] | 76 | char type_guid[UUID_STR_LEN + 1]; /* type GUID as string, if exists */ |
Patrick Delaunay | 8248c8d | 2015-10-27 11:00:27 +0100 | [diff] [blame] | 77 | #endif |
Dalon Westergreen | 8d770f4 | 2017-02-10 17:15:34 -0800 | [diff] [blame] | 78 | #ifdef CONFIG_DOS_PARTITION |
Wolfgang Denk | 62fb2b4 | 2021-09-27 17:42:39 +0200 | [diff] [blame] | 79 | uchar sys_ind; /* partition type */ |
Dalon Westergreen | 8d770f4 | 2017-02-10 17:15:34 -0800 | [diff] [blame] | 80 | #endif |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 81 | }; |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 82 | |
Simon Glass | 23e3453 | 2023-08-24 13:55:31 -0600 | [diff] [blame] | 83 | /* Accessors for struct disk_partition field ->uuid */ |
| 84 | extern char *__invalid_use_of_disk_partition_uuid; |
| 85 | |
| 86 | static inline const char *disk_partition_uuid(const struct disk_partition *info) |
| 87 | { |
| 88 | #if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
| 89 | return info->uuid; |
| 90 | #else |
| 91 | return __invalid_use_of_disk_partition_uuid; |
| 92 | #endif |
| 93 | } |
| 94 | |
| 95 | static inline void disk_partition_set_uuid(struct disk_partition *info, |
| 96 | const char *val) |
| 97 | { |
| 98 | #if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
| 99 | strlcpy(info->uuid, val, UUID_STR_LEN + 1); |
| 100 | #endif |
| 101 | } |
| 102 | |
| 103 | static inline void disk_partition_clr_uuid(struct disk_partition *info) |
| 104 | { |
| 105 | #if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
| 106 | *info->uuid = '\0'; |
| 107 | #endif |
| 108 | } |
| 109 | |
Simon Glass | b8d3a78 | 2023-08-24 13:55:32 -0600 | [diff] [blame] | 110 | /* Accessors for struct disk_partition field ->type_guid */ |
| 111 | extern char *__invalid_use_of_disk_partition_type_uuid; |
| 112 | |
| 113 | static inline const |
| 114 | char *disk_partition_type_uuid(const struct disk_partition *info) |
| 115 | { |
| 116 | #ifdef CONFIG_PARTITION_TYPE_GUID |
| 117 | return info->type_guid; |
| 118 | #else |
| 119 | return __invalid_use_of_disk_partition_type_uuid; |
| 120 | #endif |
| 121 | } |
| 122 | |
| 123 | static inline void disk_partition_set_type_guid(struct disk_partition *info, |
| 124 | const char *val) |
| 125 | { |
| 126 | #ifdef CONFIG_PARTITION_TYPE_GUID |
| 127 | strlcpy(info->type_guid, val, UUID_STR_LEN + 1); |
| 128 | #endif |
| 129 | } |
| 130 | |
| 131 | static inline void disk_partition_clr_type_guid(struct disk_partition *info) |
| 132 | { |
| 133 | #ifdef CONFIG_PARTITION_TYPE_GUID |
| 134 | *info->type_guid = '\0'; |
| 135 | #endif |
| 136 | } |
| 137 | |
Simon Glass | ed0ec66 | 2023-08-24 13:55:33 -0600 | [diff] [blame] | 138 | /* Accessors for struct disk_partition field ->sys_ind */ |
| 139 | extern int __invalid_use_of_disk_partition_sys_ind; |
| 140 | |
| 141 | static inline uint disk_partition_sys_ind(const struct disk_partition *info) |
| 142 | { |
| 143 | #ifdef CONFIG_DOS_PARTITION |
| 144 | return info->sys_ind; |
| 145 | #else |
| 146 | return __invalid_use_of_disk_partition_sys_ind; |
| 147 | #endif |
| 148 | } |
| 149 | |
Alison Chaiken | f04d4b5 | 2017-07-04 11:18:50 -0700 | [diff] [blame] | 150 | struct disk_part { |
| 151 | int partnum; |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 152 | struct disk_partition gpt_part_info; |
Alison Chaiken | f04d4b5 | 2017-07-04 11:18:50 -0700 | [diff] [blame] | 153 | struct list_head list; |
| 154 | }; |
| 155 | |
Grant Likely | ffc2dd7 | 2007-02-20 09:04:34 +0100 | [diff] [blame] | 156 | /* Misc _get_dev functions */ |
AKASHI Takahiro | 60bb6d7 | 2022-04-19 10:01:53 +0900 | [diff] [blame] | 157 | #if CONFIG_IS_ENABLED(PARTITIONS) |
Simon Glass | ddb1325 | 2016-02-29 15:25:41 -0700 | [diff] [blame] | 158 | /** |
Simon Glass | be1e9bb | 2016-02-29 15:25:42 -0700 | [diff] [blame] | 159 | * blk_get_dev() - get a pointer to a block device given its type and number |
Simon Glass | ddb1325 | 2016-02-29 15:25:41 -0700 | [diff] [blame] | 160 | * |
| 161 | * Each interface allocates its own devices and typically struct blk_desc is |
| 162 | * contained with the interface's data structure. There is no global |
| 163 | * numbering for block devices, so the interface name must be provided. |
| 164 | * |
| 165 | * @ifname: Interface name (e.g. "ide", "scsi") |
| 166 | * @dev: Device number (0 for first device on that interface, 1 for |
| 167 | * second, etc. |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 168 | * Return: |
| 169 | * pointer to the block device, or NULL if not available, or an error occurred. |
Simon Glass | ddb1325 | 2016-02-29 15:25:41 -0700 | [diff] [blame] | 170 | */ |
Simon Glass | be1e9bb | 2016-02-29 15:25:42 -0700 | [diff] [blame] | 171 | struct blk_desc *blk_get_dev(const char *ifname, int dev); |
Simon Glass | ddb1325 | 2016-02-29 15:25:41 -0700 | [diff] [blame] | 172 | |
Simon Glass | e339475 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 173 | struct blk_desc *mg_disk_get_dev(int dev); |
Grant Likely | ffc2dd7 | 2007-02-20 09:04:34 +0100 | [diff] [blame] | 174 | |
Joshua Watt | aa62d50 | 2023-07-03 08:39:54 -0500 | [diff] [blame] | 175 | /** |
| 176 | * part_get_info_by_type() - Get partitions from a block device using a specific |
| 177 | * partition driver |
| 178 | * |
| 179 | * Each interface allocates its own devices and typically struct blk_desc is |
| 180 | * contained with the interface's data structure. There is no global |
| 181 | * numbering for block devices, so the interface name must be provided. |
| 182 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 183 | * @desc: Block device descriptor |
Joshua Watt | aa62d50 | 2023-07-03 08:39:54 -0500 | [diff] [blame] | 184 | * @part: Partition number to read |
| 185 | * @part_type: Partition driver to use, or PART_TYPE_UNKNOWN to automatically |
| 186 | * choose a driver |
| 187 | * @info: Returned partition information |
| 188 | * |
| 189 | * Return: 0 on success, negative errno on failure |
| 190 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 191 | int part_get_info_by_type(struct blk_desc *desc, int part, int part_type, |
Joshua Watt | aa62d50 | 2023-07-03 08:39:54 -0500 | [diff] [blame] | 192 | struct disk_partition *info); |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 193 | int part_get_info(struct blk_desc *desc, int part, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 194 | struct disk_partition *info); |
Rob Clark | 2b7bfd9 | 2017-09-09 13:15:55 -0400 | [diff] [blame] | 195 | /** |
| 196 | * part_get_info_whole_disk() - get partition info for the special case of |
| 197 | * a partition occupying the entire disk. |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 198 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 199 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 200 | * @info: returned partition information |
| 201 | * Return: 0 on success |
Rob Clark | 2b7bfd9 | 2017-09-09 13:15:55 -0400 | [diff] [blame] | 202 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 203 | int part_get_info_whole_disk(struct blk_desc *desc, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 204 | struct disk_partition *info); |
Rob Clark | 2b7bfd9 | 2017-09-09 13:15:55 -0400 | [diff] [blame] | 205 | |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 206 | void part_print(struct blk_desc *desc); |
| 207 | void part_init(struct blk_desc *desc); |
| 208 | void dev_print(struct blk_desc *desc); |
Simon Glass | e6649a6 | 2016-02-29 15:25:43 -0700 | [diff] [blame] | 209 | |
| 210 | /** |
| 211 | * blk_get_device_by_str() - Get a block device given its interface/hw partition |
| 212 | * |
| 213 | * Each interface allocates its own devices and typically struct blk_desc is |
| 214 | * contained with the interface's data structure. There is no global |
| 215 | * numbering for block devices, so the interface name must be provided. |
| 216 | * |
| 217 | * The hardware parition is not related to the normal software partitioning |
| 218 | * of a device - each hardware partition is effectively a separately |
| 219 | * accessible block device. When a hardware parition is selected on MMC the |
| 220 | * other hardware partitions become inaccessible. The same block device is |
| 221 | * used to access all hardware partitions, but its capacity may change when a |
| 222 | * different hardware partition is selected. |
| 223 | * |
| 224 | * When a hardware partition number is given, the block device switches to |
| 225 | * that hardware partition. |
| 226 | * |
| 227 | * @ifname: Interface name (e.g. "ide", "scsi") |
| 228 | * @dev_str: Device and optional hw partition. This can either be a string |
| 229 | * containing the device number (e.g. "2") or the device number |
| 230 | * and hardware partition number (e.g. "2.4") for devices that |
| 231 | * support it (currently only MMC). |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 232 | * @desc: Returns a pointer to the block device on success |
Heinrich Schuchardt | 47b4c02 | 2022-01-19 18:05:50 +0100 | [diff] [blame] | 233 | * Return: block device number (local to the interface), or -1 on error |
Simon Glass | e6649a6 | 2016-02-29 15:25:43 -0700 | [diff] [blame] | 234 | */ |
| 235 | int blk_get_device_by_str(const char *ifname, const char *dev_str, |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 236 | struct blk_desc **desc); |
Simon Glass | e76ee97 | 2016-02-29 15:25:44 -0700 | [diff] [blame] | 237 | |
| 238 | /** |
| 239 | * blk_get_device_part_str() - Get a block device and partition |
| 240 | * |
| 241 | * This calls blk_get_device_by_str() to look up a device. It also looks up |
| 242 | * a partition and returns information about it. |
| 243 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 244 | * @dev_part_str is in the format <dev>.<hw_part>:<part> where |
| 245 | * |
| 246 | * * <dev> is the device number, |
| 247 | * |
| 248 | * * <hw_part> is the optional hardware partition number and |
Simon Glass | e76ee97 | 2016-02-29 15:25:44 -0700 | [diff] [blame] | 249 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 250 | * * <part> is the partition number. |
| 251 | * |
| 252 | * If @ifname is "hostfs", then this function returns the sandbox host block |
Simon Glass | e76ee97 | 2016-02-29 15:25:44 -0700 | [diff] [blame] | 253 | * device. |
| 254 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 255 | * If @ifname is "ubi", then this function returns 0, with @info set to a |
Simon Glass | e76ee97 | 2016-02-29 15:25:44 -0700 | [diff] [blame] | 256 | * special UBI device. |
| 257 | * |
| 258 | * If @dev_part_str is NULL or empty or "-", then this function looks up |
| 259 | * the "bootdevice" environment variable and uses that string instead. |
| 260 | * |
| 261 | * If the partition string is empty then the first partition is used. If the |
| 262 | * partition string is "auto" then the first bootable partition is used. |
| 263 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 264 | * @ifname: Interface name (e.g. "ide", "scsi") |
Simon Glass | e76ee97 | 2016-02-29 15:25:44 -0700 | [diff] [blame] | 265 | * @dev_part_str: Device and partition string |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 266 | * @desc: Returns a pointer to the block device on success |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 267 | * @info: Returns partition information |
Simon Glass | e76ee97 | 2016-02-29 15:25:44 -0700 | [diff] [blame] | 268 | * @allow_whole_dev: true to allow the user to select partition 0 |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 269 | * (which means the whole device), false to require a valid |
| 270 | * partition number >= 1 |
Heinrich Schuchardt | 47b4c02 | 2022-01-19 18:05:50 +0100 | [diff] [blame] | 271 | * Return: partition number, or -1 on error |
Simon Glass | e76ee97 | 2016-02-29 15:25:44 -0700 | [diff] [blame] | 272 | * |
| 273 | */ |
| 274 | int blk_get_device_part_str(const char *ifname, const char *dev_part_str, |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 275 | struct blk_desc **desc, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 276 | struct disk_partition *info, int allow_whole_dev); |
Petr Kulhavy | 712257e | 2016-09-09 10:27:15 +0200 | [diff] [blame] | 277 | |
| 278 | /** |
| 279 | * part_get_info_by_name() - Search for a partition by name |
| 280 | * among all available registered partitions |
| 281 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 282 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 283 | * @name: the specified table entry name |
| 284 | * @info: returns the disk partition info |
Petr Kulhavy | 712257e | 2016-09-09 10:27:15 +0200 | [diff] [blame] | 285 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 286 | * Return: the partition number on match (starting on 1), -1 on no match, |
Alex Deymo | e2f689f | 2017-04-02 01:49:50 -0700 | [diff] [blame] | 287 | * otherwise error |
Petr Kulhavy | 712257e | 2016-09-09 10:27:15 +0200 | [diff] [blame] | 288 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 289 | int part_get_info_by_name(struct blk_desc *desc, const char *name, |
| 290 | struct disk_partition *info); |
Petr Kulhavy | 712257e | 2016-09-09 10:27:15 +0200 | [diff] [blame] | 291 | |
Petr Kulhavy | 2e790d5 | 2016-09-09 10:27:17 +0200 | [diff] [blame] | 292 | /** |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 293 | * part_get_info_by_dev_and_name_or_num() - Get partition info from dev number |
| 294 | * and part name, or dev number and |
| 295 | * part number. |
Ruslan Trofymenko | 5e171ef | 2019-07-05 15:37:31 +0300 | [diff] [blame] | 296 | * |
| 297 | * Parse a device number and partition description (either name or number) |
| 298 | * in the form of device number plus partition name separated by a "#" |
| 299 | * (like "device_num#partition_name") or a device number plus a partition number |
| 300 | * separated by a ":". For example both "0#misc" and "0:1" can be valid |
| 301 | * partition descriptions for a given interface. If the partition is found, sets |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 302 | * desc and part_info accordingly with the information of the partition. |
Ruslan Trofymenko | 5e171ef | 2019-07-05 15:37:31 +0300 | [diff] [blame] | 303 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 304 | * @dev_iface: Device interface |
| 305 | * @dev_part_str: Input partition description, like "0#misc" or "0:1" |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 306 | * @desc: Place to store the device description pointer |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 307 | * @part_info: Place to store the partition information |
| 308 | * @allow_whole_dev: true to allow the user to select partition 0 |
| 309 | * (which means the whole device), false to require a valid |
| 310 | * partition number >= 1 |
| 311 | * Return: the partition number on success, or negative errno on error |
Ruslan Trofymenko | 5e171ef | 2019-07-05 15:37:31 +0300 | [diff] [blame] | 312 | */ |
| 313 | int part_get_info_by_dev_and_name_or_num(const char *dev_iface, |
| 314 | const char *dev_part_str, |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 315 | struct blk_desc **desc, |
Sean Anderson | c81028d | 2021-02-05 09:38:56 -0500 | [diff] [blame] | 316 | struct disk_partition *part_info, |
| 317 | int allow_whole_dev); |
Ruslan Trofymenko | 5e171ef | 2019-07-05 15:37:31 +0300 | [diff] [blame] | 318 | |
| 319 | /** |
Petr Kulhavy | 2e790d5 | 2016-09-09 10:27:17 +0200 | [diff] [blame] | 320 | * part_set_generic_name() - create generic partition like hda1 or sdb2 |
| 321 | * |
| 322 | * Helper function for partition tables, which don't hold partition names |
| 323 | * (DOS, ISO). Generates partition name out of the device type and partition |
| 324 | * number. |
| 325 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 326 | * @desc: pointer to the block device |
Petr Kulhavy | 2e790d5 | 2016-09-09 10:27:17 +0200 | [diff] [blame] | 327 | * @part_num: partition number for which the name is generated |
| 328 | * @name: buffer where the name is written |
| 329 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 330 | void part_set_generic_name(const struct blk_desc *desc, int part_num, |
| 331 | char *name); |
Petr Kulhavy | 2e790d5 | 2016-09-09 10:27:17 +0200 | [diff] [blame] | 332 | |
Alexander Graf | 3b3d915 | 2016-03-04 01:09:56 +0100 | [diff] [blame] | 333 | extern const struct block_drvr block_drvr[]; |
Matthew McClintock | 6252b4f | 2011-05-24 05:31:19 +0000 | [diff] [blame] | 334 | #else |
Simon Glass | be1e9bb | 2016-02-29 15:25:42 -0700 | [diff] [blame] | 335 | static inline struct blk_desc *blk_get_dev(const char *ifname, int dev) |
Rob Herring | d586cec | 2012-09-21 04:08:17 +0000 | [diff] [blame] | 336 | { return NULL; } |
Simon Glass | e339475 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 337 | static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; } |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 338 | |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 339 | static inline int part_get_info(struct blk_desc *desc, int part, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 340 | struct disk_partition *info) { return -1; } |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 341 | static inline int part_get_info_whole_disk(struct blk_desc *desc, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 342 | struct disk_partition *info) |
Rob Clark | 2b7bfd9 | 2017-09-09 13:15:55 -0400 | [diff] [blame] | 343 | { return -1; } |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 344 | static inline void part_print(struct blk_desc *desc) {} |
| 345 | static inline void part_init(struct blk_desc *desc) {} |
| 346 | static inline void dev_print(struct blk_desc *desc) {} |
Simon Glass | e6649a6 | 2016-02-29 15:25:43 -0700 | [diff] [blame] | 347 | static inline int blk_get_device_by_str(const char *ifname, const char *dev_str, |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 348 | struct blk_desc **desc) |
Stephen Warren | afd909c | 2012-09-21 09:50:56 +0000 | [diff] [blame] | 349 | { return -1; } |
Simon Glass | e76ee97 | 2016-02-29 15:25:44 -0700 | [diff] [blame] | 350 | static inline int blk_get_device_part_str(const char *ifname, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 351 | const char *dev_part_str, |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 352 | struct blk_desc **desc, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 353 | struct disk_partition *info, |
| 354 | int allow_whole_dev) |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 355 | { *desc = NULL; return -1; } |
AKASHI Takahiro | 140c59c | 2022-04-19 10:01:54 +0900 | [diff] [blame] | 356 | |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 357 | static inline int part_get_info_by_name(struct blk_desc *desc, const char *name, |
AKASHI Takahiro | 140c59c | 2022-04-19 10:01:54 +0900 | [diff] [blame] | 358 | struct disk_partition *info) |
| 359 | { |
| 360 | return -ENOENT; |
| 361 | } |
| 362 | |
Sean Anderson | f476b4a | 2021-04-12 18:53:05 -0400 | [diff] [blame] | 363 | static inline int |
| 364 | part_get_info_by_dev_and_name_or_num(const char *dev_iface, |
| 365 | const char *dev_part_str, |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 366 | struct blk_desc **desc, |
Sean Anderson | f476b4a | 2021-04-12 18:53:05 -0400 | [diff] [blame] | 367 | struct disk_partition *part_info, |
| 368 | int allow_whole_dev) |
| 369 | { |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 370 | *desc = NULL; |
Sean Anderson | f476b4a | 2021-04-12 18:53:05 -0400 | [diff] [blame] | 371 | return -ENOSYS; |
| 372 | } |
Matthew McClintock | 6252b4f | 2011-05-24 05:31:19 +0000 | [diff] [blame] | 373 | #endif |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 374 | |
AKASHI Takahiro | efb9a9d | 2022-04-19 10:05:09 +0900 | [diff] [blame] | 375 | struct udevice; |
| 376 | /** |
Simon Glass | 4e93eea | 2022-10-20 18:22:52 -0600 | [diff] [blame] | 377 | * disk_blk_read() - read blocks from a disk partition |
| 378 | * |
| 379 | * @dev: Device to read from (UCLASS_PARTITION) |
| 380 | * @start: Start block number to read in the partition (0=first) |
| 381 | * @blkcnt: Number of blocks to read |
| 382 | * @buffer: Destination buffer for data read |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 383 | * Return: number of blocks read, or -ve error number (see the |
Simon Glass | 4e93eea | 2022-10-20 18:22:52 -0600 | [diff] [blame] | 384 | * IS_ERR_VALUE() macro |
| 385 | */ |
| 386 | ulong disk_blk_read(struct udevice *dev, lbaint_t start, lbaint_t blkcnt, |
| 387 | void *buffer); |
| 388 | |
| 389 | /** |
| 390 | * disk_blk_write() - write to a disk partition |
| 391 | * |
| 392 | * @dev: Device to write to (UCLASS_PARTITION) |
| 393 | * @start: Start block number to write in the partition (0=first) |
| 394 | * @blkcnt: Number of blocks to write |
| 395 | * @buffer: Source buffer for data to write |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 396 | * Return: number of blocks written, or -ve error number (see the |
Simon Glass | 4e93eea | 2022-10-20 18:22:52 -0600 | [diff] [blame] | 397 | * IS_ERR_VALUE() macro |
| 398 | */ |
| 399 | ulong disk_blk_write(struct udevice *dev, lbaint_t start, lbaint_t blkcnt, |
| 400 | const void *buffer); |
| 401 | |
| 402 | /** |
| 403 | * disk_blk_erase() - erase a section of a disk partition |
| 404 | * |
| 405 | * @dev: Device to (partially) erase (UCLASS_PARTITION) |
| 406 | * @start: Start block number to erase in the partition (0=first) |
| 407 | * @blkcnt: Number of blocks to erase |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 408 | * Return: number of blocks erased, or -ve error number (see the |
Simon Glass | 4e93eea | 2022-10-20 18:22:52 -0600 | [diff] [blame] | 409 | * IS_ERR_VALUE() macro |
| 410 | */ |
| 411 | ulong disk_blk_erase(struct udevice *dev, lbaint_t start, lbaint_t blkcnt); |
AKASHI Takahiro | 8b57fe3 | 2022-04-19 10:05:16 +0900 | [diff] [blame] | 412 | |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 413 | /* |
| 414 | * We don't support printing partition information in SPL and only support |
| 415 | * getting partition information in a few cases. |
| 416 | */ |
| 417 | #ifdef CONFIG_SPL_BUILD |
| 418 | # define part_print_ptr(x) NULL |
Tien Fong Chee | 6091dd1 | 2019-01-23 14:20:05 +0800 | [diff] [blame] | 419 | # if defined(CONFIG_SPL_FS_EXT4) || defined(CONFIG_SPL_FS_FAT) || \ |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 420 | defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION) |
| 421 | # define part_get_info_ptr(x) x |
| 422 | # else |
| 423 | # define part_get_info_ptr(x) NULL |
| 424 | # endif |
| 425 | #else |
| 426 | #define part_print_ptr(x) x |
| 427 | #define part_get_info_ptr(x) x |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 428 | #endif |
| 429 | |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 430 | /** |
| 431 | * struct part_driver - partition driver |
| 432 | */ |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 433 | struct part_driver { |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 434 | /** @name: partition name */ |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 435 | const char *name; |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 436 | /** @part_type: (MBR) partition type */ |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 437 | int part_type; |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 438 | /** @max_entries: maximum number of partition table entries */ |
| 439 | const int max_entries; |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 440 | /** |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 441 | * @get_info: Get information about a partition |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 442 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 443 | * @get_info.desc: Block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 444 | * @get_info.part: Partition number (1 = first) |
| 445 | * @get_info.info: Returns partition information |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 446 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 447 | int (*get_info)(struct blk_desc *desc, int part, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 448 | struct disk_partition *info); |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 449 | |
| 450 | /** |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 451 | * @print: Print partition information |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 452 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 453 | * @print.desc: Block device descriptor |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 454 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 455 | void (*print)(struct blk_desc *desc); |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 456 | |
| 457 | /** |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 458 | * @test: Test if a device contains this partition type |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 459 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 460 | * @test.desc: Block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 461 | * @test.Return: |
| 462 | * 0 if the block device appears to contain this partition type, |
| 463 | * -ve if not |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 464 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 465 | int (*test)(struct blk_desc *desc); |
Simon Glass | 83ce563 | 2016-02-29 15:25:47 -0700 | [diff] [blame] | 466 | }; |
| 467 | |
| 468 | /* Declare a new U-Boot partition 'driver' */ |
| 469 | #define U_BOOT_PART_TYPE(__name) \ |
| 470 | ll_entry_declare(struct part_driver, __name, part_driver) |
wdenk | 452cfd6 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 471 | |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 472 | #include <part_efi.h> |
Rob Clark | 224ee84 | 2017-09-13 18:05:24 -0400 | [diff] [blame] | 473 | |
| 474 | #if CONFIG_IS_ENABLED(EFI_PARTITION) |
richardretanubun | e674559 | 2008-09-26 11:13:22 -0400 | [diff] [blame] | 475 | /* disk/part_efi.c */ |
Steve Rae | f7f10b8 | 2014-05-26 11:52:24 -0700 | [diff] [blame] | 476 | /** |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 477 | * write_gpt_table() - Write the GUID Partition Table to disk |
| 478 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 479 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 480 | * @gpt_h: pointer to GPT header representation |
| 481 | * @gpt_e: pointer to GPT partition table entries |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 482 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 483 | * Return: zero on success, otherwise error |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 484 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 485 | int write_gpt_table(struct blk_desc *desc, gpt_header *gpt_h, gpt_entry *gpt_e); |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 486 | |
| 487 | /** |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 488 | * gpt_fill_pte() - Fill the GPT partition table entry |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 489 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 490 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 491 | * @gpt_h: GPT header representation |
| 492 | * @gpt_e: GPT partition table entries |
| 493 | * @partitions: list of partitions |
| 494 | * @parts: number of partitions |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 495 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 496 | * Return: zero on success |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 497 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 498 | int gpt_fill_pte(struct blk_desc *desc, gpt_header *gpt_h, gpt_entry *gpt_e, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 499 | struct disk_partition *partitions, int parts); |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 500 | |
| 501 | /** |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 502 | * gpt_fill_header() - Fill the GPT header |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 503 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 504 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 505 | * @gpt_h: GPT header representation |
| 506 | * @str_guid: disk guid string representation |
| 507 | * @parts_count: number of partitions |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 508 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 509 | * Return: error on str_guid conversion error |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 510 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 511 | int gpt_fill_header(struct blk_desc *desc, gpt_header *gpt_h, char *str_guid, |
| 512 | int parts_count); |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 513 | |
| 514 | /** |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 515 | * gpt_restore() - Restore GPT partition table |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 516 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 517 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 518 | * @str_disk_guid: disk GUID |
| 519 | * @partitions: list of partitions |
| 520 | * @parts_count: number of partitions |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 521 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 522 | * Return: 0 on success |
Lukasz Majewski | 0dcfc5c | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 523 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 524 | int gpt_restore(struct blk_desc *desc, char *str_disk_guid, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 525 | struct disk_partition *partitions, const int parts_count); |
Steve Rae | 7d05934 | 2014-12-12 15:51:54 -0800 | [diff] [blame] | 526 | |
| 527 | /** |
| 528 | * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid |
| 529 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 530 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 531 | * @buf: buffer which contains the MBR and Primary GPT info |
Steve Rae | 7d05934 | 2014-12-12 15:51:54 -0800 | [diff] [blame] | 532 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 533 | * Return: 0 on success, otherwise error |
Steve Rae | 7d05934 | 2014-12-12 15:51:54 -0800 | [diff] [blame] | 534 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 535 | int is_valid_gpt_buf(struct blk_desc *desc, void *buf); |
Steve Rae | 7d05934 | 2014-12-12 15:51:54 -0800 | [diff] [blame] | 536 | |
| 537 | /** |
| 538 | * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT |
| 539 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 540 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 541 | * @buf: buffer which contains the MBR and Primary GPT info |
Steve Rae | 7d05934 | 2014-12-12 15:51:54 -0800 | [diff] [blame] | 542 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 543 | * Return: 0 on success, otherwise error |
Steve Rae | 7d05934 | 2014-12-12 15:51:54 -0800 | [diff] [blame] | 544 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 545 | int write_mbr_and_gpt_partitions(struct blk_desc *desc, void *buf); |
Lukasz Majewski | 7b9839c | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 546 | |
| 547 | /** |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 548 | * gpt_verify_headers() - Read and check CRC32 of the GPT's header |
Lukasz Majewski | 7b9839c | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 549 | * and partition table entries (PTE) |
| 550 | * |
| 551 | * As a side effect if sets gpt_head and gpt_pte so they point to GPT data. |
| 552 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 553 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 554 | * @gpt_head: pointer to GPT header data read from medium |
| 555 | * @gpt_pte: pointer to GPT partition table enties read from medium |
Lukasz Majewski | 7b9839c | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 556 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 557 | * Return: 0 on success, otherwise error |
Lukasz Majewski | 7b9839c | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 558 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 559 | int gpt_verify_headers(struct blk_desc *desc, gpt_header *gpt_head, |
Lukasz Majewski | 7b9839c | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 560 | gpt_entry **gpt_pte); |
| 561 | |
| 562 | /** |
Philippe Reynes | 8b054f5 | 2022-04-22 17:46:48 +0200 | [diff] [blame] | 563 | * gpt_repair_headers() - Function to repair the GPT's header |
| 564 | * and partition table entries (PTE) |
| 565 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 566 | * @desc: block device descriptor |
Philippe Reynes | 8b054f5 | 2022-04-22 17:46:48 +0200 | [diff] [blame] | 567 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 568 | * Return: 0 on success, otherwise error |
Philippe Reynes | 8b054f5 | 2022-04-22 17:46:48 +0200 | [diff] [blame] | 569 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 570 | int gpt_repair_headers(struct blk_desc *desc); |
Philippe Reynes | 8b054f5 | 2022-04-22 17:46:48 +0200 | [diff] [blame] | 571 | |
| 572 | /** |
Lukasz Majewski | 7b9839c | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 573 | * gpt_verify_partitions() - Function to check if partitions' name, start and |
| 574 | * size correspond to '$partitions' env variable |
| 575 | * |
| 576 | * This function checks if on medium stored GPT data is in sync with information |
| 577 | * provided in '$partitions' environment variable. Specificially, name, start |
| 578 | * and size of the partition is checked. |
| 579 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 580 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 581 | * @partitions: partition data read from '$partitions' env variable |
| 582 | * @parts: number of partitions read from '$partitions' env variable |
| 583 | * @gpt_head: pointer to GPT header data read from medium |
| 584 | * @gpt_pte: pointer to GPT partition table enties read from medium |
Lukasz Majewski | 7b9839c | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 585 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 586 | * Return: 0 on success, otherwise error |
Lukasz Majewski | 7b9839c | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 587 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 588 | int gpt_verify_partitions(struct blk_desc *desc, |
Simon Glass | c1c4a8f | 2020-05-10 11:39:57 -0600 | [diff] [blame] | 589 | struct disk_partition *partitions, int parts, |
Lukasz Majewski | 7b9839c | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 590 | gpt_header *gpt_head, gpt_entry **gpt_pte); |
Alison Chaiken | e422258 | 2017-06-25 16:43:23 -0700 | [diff] [blame] | 591 | |
| 592 | |
| 593 | /** |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 594 | * get_disk_guid() - Read the GUID string from a device's GPT |
Alison Chaiken | e422258 | 2017-06-25 16:43:23 -0700 | [diff] [blame] | 595 | * |
| 596 | * This function reads the GUID string from a block device whose descriptor |
| 597 | * is provided. |
| 598 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 599 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 600 | * @guid: pre-allocated string in which to return the GUID |
Alison Chaiken | e422258 | 2017-06-25 16:43:23 -0700 | [diff] [blame] | 601 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 602 | * Return: 0 on success, otherwise error |
Alison Chaiken | e422258 | 2017-06-25 16:43:23 -0700 | [diff] [blame] | 603 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 604 | int get_disk_guid(struct blk_desc *desc, char *guid); |
Alison Chaiken | e422258 | 2017-06-25 16:43:23 -0700 | [diff] [blame] | 605 | |
richardretanubun | e674559 | 2008-09-26 11:13:22 -0400 | [diff] [blame] | 606 | #endif |
| 607 | |
Patrick Delaunay | f7e0772 | 2017-01-27 11:00:37 +0100 | [diff] [blame] | 608 | #if CONFIG_IS_ENABLED(DOS_PARTITION) |
Petr Kulhavy | 9f174c9 | 2016-09-09 10:27:16 +0200 | [diff] [blame] | 609 | /** |
| 610 | * is_valid_dos_buf() - Ensure that a DOS MBR image is valid |
| 611 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 612 | * @buf: buffer which contains the MBR |
Petr Kulhavy | 9f174c9 | 2016-09-09 10:27:16 +0200 | [diff] [blame] | 613 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 614 | * Return: 0 on success, otherwise error |
Petr Kulhavy | 9f174c9 | 2016-09-09 10:27:16 +0200 | [diff] [blame] | 615 | */ |
| 616 | int is_valid_dos_buf(void *buf); |
| 617 | |
| 618 | /** |
Marek Szyprowski | 29ee06b | 2020-12-23 13:55:10 +0100 | [diff] [blame] | 619 | * write_mbr_sector() - write DOS MBR |
Petr Kulhavy | 9f174c9 | 2016-09-09 10:27:16 +0200 | [diff] [blame] | 620 | * |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 621 | * @desc: block device descriptor |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 622 | * @buf: buffer which contains the MBR |
Petr Kulhavy | 9f174c9 | 2016-09-09 10:27:16 +0200 | [diff] [blame] | 623 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 624 | * Return: 0 on success, otherwise error |
Petr Kulhavy | 9f174c9 | 2016-09-09 10:27:16 +0200 | [diff] [blame] | 625 | */ |
Simon Glass | 54c709a | 2023-08-24 13:55:24 -0600 | [diff] [blame] | 626 | int write_mbr_sector(struct blk_desc *desc, void *buf); |
Petr Kulhavy | 9f174c9 | 2016-09-09 10:27:16 +0200 | [diff] [blame] | 627 | |
Marek Szyprowski | 6a60b67 | 2020-12-23 13:55:14 +0100 | [diff] [blame] | 628 | int write_mbr_partitions(struct blk_desc *dev, |
| 629 | struct disk_partition *p, int count, unsigned int disksig); |
| 630 | int layout_mbr_partitions(struct disk_partition *p, int count, |
| 631 | lbaint_t total_sectors); |
| 632 | |
Petr Kulhavy | 9f174c9 | 2016-09-09 10:27:16 +0200 | [diff] [blame] | 633 | #endif |
| 634 | |
AKASHI Takahiro | 60bb6d7 | 2022-04-19 10:01:53 +0900 | [diff] [blame] | 635 | #if CONFIG_IS_ENABLED(PARTITIONS) |
Corneliu Doban | 0c6776c | 2020-11-09 11:49:16 +0530 | [diff] [blame] | 636 | /** |
| 637 | * part_driver_get_count() - get partition driver count |
| 638 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 639 | * Return: number of partition drivers |
Corneliu Doban | 0c6776c | 2020-11-09 11:49:16 +0530 | [diff] [blame] | 640 | */ |
| 641 | static inline int part_driver_get_count(void) |
| 642 | { |
| 643 | return ll_entry_count(struct part_driver, part_driver); |
| 644 | } |
| 645 | |
| 646 | /** |
| 647 | * part_driver_get_first() - get first partition driver |
| 648 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 649 | * Return: pointer to first partition driver on success, otherwise NULL |
Corneliu Doban | 0c6776c | 2020-11-09 11:49:16 +0530 | [diff] [blame] | 650 | */ |
| 651 | static inline struct part_driver *part_driver_get_first(void) |
| 652 | { |
| 653 | return ll_entry_start(struct part_driver, part_driver); |
| 654 | } |
| 655 | |
Simon Glass | ed338b7 | 2023-07-15 21:38:47 -0600 | [diff] [blame] | 656 | /** |
| 657 | * part_get_type_by_name() - Get partition type by name |
| 658 | * |
Heinrich Schuchardt | 4a45c72 | 2023-08-15 12:30:19 +0200 | [diff] [blame] | 659 | * @name: Name of partition type to look up (not case-sensitive) |
| 660 | * Return: |
| 661 | * Corresponding partition type (PART\_TYPE\_...) or PART\_TYPE\_UNKNOWN |
Simon Glass | ed338b7 | 2023-07-15 21:38:47 -0600 | [diff] [blame] | 662 | */ |
| 663 | int part_get_type_by_name(const char *name); |
| 664 | |
Simon Glass | 1e7f447 | 2023-08-24 13:55:42 -0600 | [diff] [blame] | 665 | /** |
| 666 | * part_get_bootable() - Find the first bootable partition |
| 667 | * |
| 668 | * @desc: Block-device descriptor |
| 669 | * @return first bootable partition, or 0 if there is none |
| 670 | */ |
| 671 | int part_get_bootable(struct blk_desc *desc); |
| 672 | |
Corneliu Doban | 0c6776c | 2020-11-09 11:49:16 +0530 | [diff] [blame] | 673 | #else |
| 674 | static inline int part_driver_get_count(void) |
| 675 | { return 0; } |
| 676 | |
| 677 | static inline struct part_driver *part_driver_get_first(void) |
| 678 | { return NULL; } |
Simon Glass | 1e7f447 | 2023-08-24 13:55:42 -0600 | [diff] [blame] | 679 | |
| 680 | static inline bool part_get_bootable(struct blk_desc *desc) |
| 681 | { return false; } |
| 682 | |
Corneliu Doban | 0c6776c | 2020-11-09 11:49:16 +0530 | [diff] [blame] | 683 | #endif /* CONFIG_PARTITIONS */ |
Petr Kulhavy | 9f174c9 | 2016-09-09 10:27:16 +0200 | [diff] [blame] | 684 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 685 | #endif /* _PART_H */ |