X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fpart.h;h=419c85970886041bf5b5b31947c69cec627ce2a0;hb=49c8ef0e45a91ec894ef15e7d043dafe8f1c5efd;hp=0caceafc5f70800876d04c015496d4ff50c114ad;hpb=002e91087c817f8281fccee327e0d8e98c691a2f;p=platform%2Fkernel%2Fu-boot.git diff --git a/include/part.h b/include/part.h index 0caceaf..419c859 100644 --- a/include/part.h +++ b/include/part.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * (C) Copyright 2000-2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _PART_H #define _PART_H @@ -10,6 +9,7 @@ #include #include #include +#include #include struct block_drvr { @@ -52,13 +52,22 @@ struct block_drvr { #define PART_TYPE_LEN 32 #define MAX_SEARCH_PARTITIONS 64 -typedef struct disk_partition { +#define PART_BOOTABLE ((int)BIT(0)) +#define PART_EFI_SYSTEM_PARTITION ((int)BIT(1)) + +struct disk_partition { lbaint_t start; /* # of first block in partition */ lbaint_t size; /* number of blocks in partition */ ulong blksz; /* block size in bytes */ uchar name[PART_NAME_LEN]; /* partition name */ uchar type[PART_TYPE_LEN]; /* string type description */ - int bootable; /* Active/Bootable flag is set */ + /* + * The bootable is a bitmask with the following fields: + * + * PART_BOOTABLE the MBR bootable flag is set + * PART_EFI_SYSTEM_PARTITION the partition is an EFI system partition + */ + int bootable; #if CONFIG_IS_ENABLED(PARTITION_UUIDS) char uuid[UUID_STR_LEN + 1]; /* filesystem UUID as string, if exists */ #endif @@ -68,11 +77,11 @@ typedef struct disk_partition { #ifdef CONFIG_DOS_PARTITION uchar sys_ind; /* partition type */ #endif -} disk_partition_t; +}; struct disk_part { int partnum; - disk_partition_t gpt_part_info; + struct disk_partition gpt_part_info; struct list_head list; }; @@ -97,12 +106,14 @@ struct blk_desc *mg_disk_get_dev(int dev); int host_get_dev_err(int dev, struct blk_desc **blk_devp); /* disk/part.c */ -int part_get_info(struct blk_desc *dev_desc, int part, disk_partition_t *info); +int part_get_info(struct blk_desc *dev_desc, int part, + struct disk_partition *info); /** * part_get_info_whole_disk() - get partition info for the special case of * a partition occupying the entire disk. */ -int part_get_info_whole_disk(struct blk_desc *dev_desc, disk_partition_t *info); +int part_get_info_whole_disk(struct blk_desc *dev_desc, + struct disk_partition *info); void part_print(struct blk_desc *dev_desc); void part_init(struct blk_desc *dev_desc); @@ -171,7 +182,7 @@ int blk_get_device_by_str(const char *ifname, const char *dev_str, */ int blk_get_device_part_str(const char *ifname, const char *dev_part_str, struct blk_desc **dev_desc, - disk_partition_t *info, int allow_whole_dev); + struct disk_partition *info, int allow_whole_dev); /** * part_get_info_by_name_type() - Search for a partition by name @@ -186,7 +197,7 @@ int blk_get_device_part_str(const char *ifname, const char *dev_part_str, * otherwise error */ int part_get_info_by_name_type(struct blk_desc *dev_desc, const char *name, - disk_partition_t *info, int part_type); + struct disk_partition *info, int part_type); /** * part_get_info_by_name() - Search for a partition by name @@ -200,7 +211,32 @@ int part_get_info_by_name_type(struct blk_desc *dev_desc, const char *name, * otherwise error */ int part_get_info_by_name(struct blk_desc *dev_desc, - const char *name, disk_partition_t *info); + const char *name, struct disk_partition *info); + +/** + * Get partition info from dev number + part name, or dev number + part number. + * + * Parse a device number and partition description (either name or number) + * in the form of device number plus partition name separated by a "#" + * (like "device_num#partition_name") or a device number plus a partition number + * separated by a ":". For example both "0#misc" and "0:1" can be valid + * partition descriptions for a given interface. If the partition is found, sets + * dev_desc and part_info accordingly with the information of the partition. + * + * @param[in] dev_iface Device interface + * @param[in] dev_part_str Input partition description, like "0#misc" or "0:1" + * @param[out] dev_desc Place to store the device description pointer + * @param[out] part_info Place to store the partition information + * @param[in] allow_whole_dev true to allow the user to select partition 0 + * (which means the whole device), false to require a valid + * partition number >= 1 + * @return the partition number on success, or negative errno on error + */ +int part_get_info_by_dev_and_name_or_num(const char *dev_iface, + const char *dev_part_str, + struct blk_desc **dev_desc, + struct disk_partition *part_info, + int allow_whole_dev); /** * part_set_generic_name() - create generic partition like hda1 or sdb2 @@ -223,9 +259,9 @@ static inline struct blk_desc *blk_get_dev(const char *ifname, int dev) static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; } static inline int part_get_info(struct blk_desc *dev_desc, int part, - disk_partition_t *info) { return -1; } + struct disk_partition *info) { return -1; } static inline int part_get_info_whole_disk(struct blk_desc *dev_desc, - disk_partition_t *info) + struct disk_partition *info) { return -1; } static inline void part_print(struct blk_desc *dev_desc) {} static inline void part_init(struct blk_desc *dev_desc) {} @@ -234,11 +270,21 @@ static inline int blk_get_device_by_str(const char *ifname, const char *dev_str, struct blk_desc **dev_desc) { return -1; } static inline int blk_get_device_part_str(const char *ifname, - const char *dev_part_str, - struct blk_desc **dev_desc, - disk_partition_t *info, - int allow_whole_dev) + const char *dev_part_str, + struct blk_desc **dev_desc, + struct disk_partition *info, + int allow_whole_dev) { *dev_desc = NULL; return -1; } +static inline int +part_get_info_by_dev_and_name_or_num(const char *dev_iface, + const char *dev_part_str, + struct blk_desc **dev_desc, + struct disk_partition *part_info, + int allow_whole_dev) +{ + *dev_desc = NULL; + return -ENOSYS; +} #endif /* @@ -247,7 +293,7 @@ static inline int blk_get_device_part_str(const char *ifname, */ #ifdef CONFIG_SPL_BUILD # define part_print_ptr(x) NULL -# if defined(CONFIG_SPL_EXT_SUPPORT) || defined(CONFIG_SPL_FAT_SUPPORT) || \ +# if defined(CONFIG_SPL_FS_EXT4) || defined(CONFIG_SPL_FS_FAT) || \ defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION) # define part_get_info_ptr(x) x # else @@ -272,7 +318,7 @@ struct part_driver { * @info: Returns partition information */ int (*get_info)(struct blk_desc *dev_desc, int part, - disk_partition_t *info); + struct disk_partition *info); /** * print() - Print partition information @@ -324,7 +370,7 @@ int write_gpt_table(struct blk_desc *dev_desc, */ int gpt_fill_pte(struct blk_desc *dev_desc, gpt_header *gpt_h, gpt_entry *gpt_e, - disk_partition_t *partitions, int parts); + struct disk_partition *partitions, int parts); /** * gpt_fill_header(): Fill the GPT header @@ -350,7 +396,7 @@ int gpt_fill_header(struct blk_desc *dev_desc, gpt_header *gpt_h, * @return zero on success */ int gpt_restore(struct blk_desc *dev_desc, char *str_disk_guid, - disk_partition_t *partitions, const int parts_count); + struct disk_partition *partitions, const int parts_count); /** * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid @@ -404,7 +450,7 @@ int gpt_verify_headers(struct blk_desc *dev_desc, gpt_header *gpt_head, * @return - '0' on success, otherwise error */ int gpt_verify_partitions(struct blk_desc *dev_desc, - disk_partition_t *partitions, int parts, + struct disk_partition *partitions, int parts, gpt_header *gpt_head, gpt_entry **gpt_pte); @@ -434,16 +480,49 @@ int get_disk_guid(struct blk_desc *dev_desc, char *guid); int is_valid_dos_buf(void *buf); /** - * write_mbr_partition() - write DOS MBR + * write_mbr_sector() - write DOS MBR * * @param dev_desc - block device descriptor * @param buf - buffer which contains the MBR * * @return - '0' on success, otherwise error */ -int write_mbr_partition(struct blk_desc *dev_desc, void *buf); +int write_mbr_sector(struct blk_desc *dev_desc, void *buf); + +int write_mbr_partitions(struct blk_desc *dev, + struct disk_partition *p, int count, unsigned int disksig); +int layout_mbr_partitions(struct disk_partition *p, int count, + lbaint_t total_sectors); #endif +#ifdef CONFIG_PARTITIONS +/** + * part_driver_get_count() - get partition driver count + * + * @return - number of partition drivers + */ +static inline int part_driver_get_count(void) +{ + return ll_entry_count(struct part_driver, part_driver); +} + +/** + * part_driver_get_first() - get first partition driver + * + * @return - pointer to first partition driver on success, otherwise NULL + */ +static inline struct part_driver *part_driver_get_first(void) +{ + return ll_entry_start(struct part_driver, part_driver); +} + +#else +static inline int part_driver_get_count(void) +{ return 0; } + +static inline struct part_driver *part_driver_get_first(void) +{ return NULL; } +#endif /* CONFIG_PARTITIONS */ #endif /* _PART_H */