diff options
| -rw-r--r-- | disk/part.c | 69 | ||||
| -rw-r--r-- | include/part.h | 13 |
2 files changed, 78 insertions, 4 deletions
diff --git a/disk/part.c b/disk/part.c index f659cc39cd..f0afd89553 100644 --- a/disk/part.c +++ b/disk/part.c @@ -70,7 +70,7 @@ static const struct block_drvr block_drvr[] = { DECLARE_GLOBAL_DATA_PTR; -block_dev_desc_t *get_dev(char* ifname, int dev) +block_dev_desc_t *get_dev(const char *ifname, int dev) { const struct block_drvr *drvr = block_drvr; block_dev_desc_t* (*reloc_get_dev)(int dev); @@ -97,7 +97,7 @@ block_dev_desc_t *get_dev(char* ifname, int dev) return NULL; } #else -block_dev_desc_t *get_dev(char* ifname, int dev) +block_dev_desc_t *get_dev(const char *ifname, int dev) { return NULL; } @@ -288,6 +288,7 @@ void init_part (block_dev_desc_t * dev_desc) return; } #endif + dev_desc->part_type = PART_TYPE_UNKNOWN; } @@ -441,3 +442,67 @@ int get_partition_info(block_dev_desc_t *dev_desc, int part return -1; } + +int get_device_and_partition(const char *ifname, const char *dev_str, + block_dev_desc_t **dev_desc, + disk_partition_t *info) +{ + int ret; + char *ep; + int dev; + block_dev_desc_t *desc; + int part = 0; + char *part_str; + + if (dev_str) + dev = simple_strtoul(dev_str, &ep, 16); + + if (!dev_str || (dev_str == ep)) { + dev_str = getenv("bootdevice"); + if (dev_str) + dev = simple_strtoul(dev_str, &ep, 16); + if (!dev_str || (dev_str == ep)) + goto err; + } + + desc = get_dev(ifname, dev); + if (!desc || (desc->type == DEV_TYPE_UNKNOWN)) + goto err; + + if (desc->part_type == PART_TYPE_UNKNOWN) { + /* disk doesn't use partition table */ + if (!desc->lba) { + printf("**Bad disk size - %s %d:0 **\n", ifname, dev); + return -1; + } + info->start = 0; + info->size = desc->lba; + info->blksz = desc->blksz; + + *dev_desc = desc; + return 0; + } + + part_str = strchr(dev_str, ':'); + if (part_str) + part = (int)simple_strtoul(++part_str, NULL, 16); + + ret = get_partition_info(desc, part, info); + if (ret) { + printf("** Invalid partition %d, use `dev[:part]' **\n", part); + return -1; + } + if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) { + printf("** Invalid partition type \"%.32s\"" + " (expect \"" BOOT_PART_TYPE "\")\n", + info->type); + return -1; + } + + *dev_desc = desc; + return part; + +err: + puts("** Invalid boot device, use `dev[:part]' **\n"); + return -1; +} diff --git a/include/part.h b/include/part.h index 447f69dfc4..a6d06f3a5e 100644 --- a/include/part.h +++ b/include/part.h @@ -98,7 +98,7 @@ typedef struct disk_partition { /* Misc _get_dev functions */ #ifdef CONFIG_PARTITIONS -block_dev_desc_t* get_dev(char* ifname, int dev); +block_dev_desc_t *get_dev(const char *ifname, int dev); block_dev_desc_t* ide_get_dev(int dev); block_dev_desc_t* sata_get_dev(int dev); block_dev_desc_t* scsi_get_dev(int dev); @@ -112,8 +112,12 @@ int get_partition_info (block_dev_desc_t * dev_desc, int part, disk_partition_t void print_part (block_dev_desc_t *dev_desc); void init_part (block_dev_desc_t *dev_desc); void dev_print(block_dev_desc_t *dev_desc); +int get_device_and_partition(const char *ifname, const char *dev_str, + block_dev_desc_t **dev_desc, + disk_partition_t *info); #else -static inline block_dev_desc_t* get_dev(char* ifname, int dev) { return NULL; } +static inline block_dev_desc_t *get_dev(const char *ifname, int dev) +{ return NULL; } static inline block_dev_desc_t* ide_get_dev(int dev) { return NULL; } static inline block_dev_desc_t* sata_get_dev(int dev) { return NULL; } static inline block_dev_desc_t* scsi_get_dev(int dev) { return NULL; } @@ -127,6 +131,11 @@ static inline int get_partition_info (block_dev_desc_t * dev_desc, int part, static inline void print_part (block_dev_desc_t *dev_desc) {} static inline void init_part (block_dev_desc_t *dev_desc) {} static inline void dev_print(block_dev_desc_t *dev_desc) {} +static inline int get_device_and_partition(const char *ifname, + const char *dev_str, + block_dev_desc_t **dev_desc, + disk_partition_t *info) +{ *dev_desc = NULL; return -1; } #endif #ifdef CONFIG_MAC_PARTITION |