diff options
Diffstat (limited to 'disk/part.c')
-rw-r--r-- | disk/part.c | 230 |
1 files changed, 79 insertions, 151 deletions
diff --git a/disk/part.c b/disk/part.c index 1935b28..2a46050 100644 --- a/disk/part.c +++ b/disk/part.c @@ -7,6 +7,7 @@ #include <common.h> #include <command.h> +#include <errno.h> #include <ide.h> #include <malloc.h> #include <part.h> @@ -22,7 +23,7 @@ struct block_drvr { char *name; - block_dev_desc_t* (*get_dev)(int dev); + struct blk_desc* (*get_dev)(int dev); int (*select_hwpart)(int dev_num, int hwpart); }; @@ -58,10 +59,26 @@ static const struct block_drvr block_drvr[] = { DECLARE_GLOBAL_DATA_PTR; #ifdef HAVE_BLOCK_DEVICE -static block_dev_desc_t *get_dev_hwpart(const char *ifname, int dev, int hwpart) +static struct part_driver *part_driver_lookup_type(int part_type) +{ + struct part_driver *drv = + ll_entry_start(struct part_driver, part_driver); + const int n_ents = ll_entry_count(struct part_driver, part_driver); + struct part_driver *entry; + + for (entry = drv; entry != drv + n_ents; entry++) { + if (part_type == entry->part_type) + return entry; + } + + /* Not found */ + return NULL; +} + +static struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart) { const struct block_drvr *drvr = block_drvr; - block_dev_desc_t* (*reloc_get_dev)(int dev); + struct blk_desc* (*reloc_get_dev)(int dev); int (*select_hwpart)(int dev_num, int hwpart); char *name; int ret; @@ -84,14 +101,14 @@ static block_dev_desc_t *get_dev_hwpart(const char *ifname, int dev, int hwpart) select_hwpart += gd->reloc_off; #endif if (strncmp(ifname, name, strlen(name)) == 0) { - block_dev_desc_t *dev_desc = reloc_get_dev(dev); + struct blk_desc *dev_desc = reloc_get_dev(dev); if (!dev_desc) return NULL; if (hwpart == 0 && !select_hwpart) return dev_desc; if (!select_hwpart) return NULL; - ret = select_hwpart(dev_desc->dev, hwpart); + ret = select_hwpart(dev_desc->devnum, hwpart); if (ret < 0) return NULL; return dev_desc; @@ -101,17 +118,17 @@ static block_dev_desc_t *get_dev_hwpart(const char *ifname, int dev, int hwpart) return NULL; } -block_dev_desc_t *get_dev(const char *ifname, int dev) +struct blk_desc *blk_get_dev(const char *ifname, int dev) { return get_dev_hwpart(ifname, dev, 0); } #else -block_dev_desc_t *get_dev_hwpart(const char *ifname, int dev, int hwpart) +struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart) { return NULL; } -block_dev_desc_t *get_dev(const char *ifname, int dev) +struct blk_desc *blk_get_dev(const char *ifname, int dev) { return NULL; } @@ -144,7 +161,7 @@ static lba512_t lba512_muldiv(lba512_t block_count, lba512_t mul_by, lba512_t di return bc_quot * mul_by + (bc_rem * mul_by) / div_by; } -void dev_print (block_dev_desc_t *dev_desc) +void dev_print (struct blk_desc *dev_desc) { lba512_t lba512; /* number of blocks if 512bytes block size */ @@ -250,55 +267,33 @@ void dev_print (block_dev_desc_t *dev_desc) #ifdef HAVE_BLOCK_DEVICE -void init_part(block_dev_desc_t *dev_desc) +void part_init(struct blk_desc *dev_desc) { -#ifdef CONFIG_ISO_PARTITION - if (test_part_iso(dev_desc) == 0) { - dev_desc->part_type = PART_TYPE_ISO; - return; - } -#endif + struct part_driver *drv = + ll_entry_start(struct part_driver, part_driver); + const int n_ents = ll_entry_count(struct part_driver, part_driver); + struct part_driver *entry; -#ifdef CONFIG_MAC_PARTITION - if (test_part_mac(dev_desc) == 0) { - dev_desc->part_type = PART_TYPE_MAC; - return; - } -#endif - -/* must be placed before DOS partition detection */ -#ifdef CONFIG_EFI_PARTITION - if (test_part_efi(dev_desc) == 0) { - dev_desc->part_type = PART_TYPE_EFI; - return; - } -#endif - -#ifdef CONFIG_DOS_PARTITION - if (test_part_dos(dev_desc) == 0) { - dev_desc->part_type = PART_TYPE_DOS; - return; - } -#endif - -#ifdef CONFIG_AMIGA_PARTITION - if (test_part_amiga(dev_desc) == 0) { - dev_desc->part_type = PART_TYPE_AMIGA; - return; - } -#endif dev_desc->part_type = PART_TYPE_UNKNOWN; + for (entry = drv; entry != drv + n_ents; entry++) { + int ret; + + ret = entry->test(dev_desc); + debug("%s: try '%s': ret=%d\n", __func__, entry->name, ret); + if (!ret) { + dev_desc->part_type = entry->part_type; + break; + } + } } - +static void print_part_header(const char *type, struct blk_desc *dev_desc) +{ #if defined(CONFIG_MAC_PARTITION) || \ defined(CONFIG_DOS_PARTITION) || \ defined(CONFIG_ISO_PARTITION) || \ defined(CONFIG_AMIGA_PARTITION) || \ defined(CONFIG_EFI_PARTITION) - -static void print_part_header(const char *type, block_dev_desc_t *dev_desc) -{ puts ("\nPartition Map for "); switch (dev_desc->if_type) { case IF_TYPE_IDE: @@ -330,63 +325,34 @@ static void print_part_header(const char *type, block_dev_desc_t *dev_desc) break; } printf (" device %d -- Partition Type: %s\n\n", - dev_desc->dev, type); -} - + dev_desc->devnum, type); #endif /* any CONFIG_..._PARTITION */ +} -void print_part(block_dev_desc_t * dev_desc) +void part_print(struct blk_desc *dev_desc) { + struct part_driver *drv; - switch (dev_desc->part_type) { -#ifdef CONFIG_MAC_PARTITION - case PART_TYPE_MAC: - PRINTF ("## Testing for valid MAC partition ##\n"); - print_part_header ("MAC", dev_desc); - print_part_mac (dev_desc); - return; -#endif -#ifdef CONFIG_DOS_PARTITION - case PART_TYPE_DOS: - PRINTF ("## Testing for valid DOS partition ##\n"); - print_part_header ("DOS", dev_desc); - print_part_dos (dev_desc); - return; -#endif - -#ifdef CONFIG_ISO_PARTITION - case PART_TYPE_ISO: - PRINTF ("## Testing for valid ISO Boot partition ##\n"); - print_part_header ("ISO", dev_desc); - print_part_iso (dev_desc); + drv = part_driver_lookup_type(dev_desc->part_type); + if (!drv) { + printf("## Unknown partition table type %x\n", + dev_desc->part_type); return; -#endif - -#ifdef CONFIG_AMIGA_PARTITION - case PART_TYPE_AMIGA: - PRINTF ("## Testing for a valid Amiga partition ##\n"); - print_part_header ("AMIGA", dev_desc); - print_part_amiga (dev_desc); - return; -#endif - -#ifdef CONFIG_EFI_PARTITION - case PART_TYPE_EFI: - PRINTF ("## Testing for valid EFI partition ##\n"); - print_part_header ("EFI", dev_desc); - print_part_efi (dev_desc); - return; -#endif } - puts ("## Unknown partition table\n"); + + PRINTF("## Testing for valid %s partition ##\n", drv->name); + print_part_header(drv->name, dev_desc); + if (drv->print) + drv->print(dev_desc); } #endif /* HAVE_BLOCK_DEVICE */ -int get_partition_info(block_dev_desc_t *dev_desc, int part, +int part_get_info(struct blk_desc *dev_desc, int part, disk_partition_t *info) { #ifdef HAVE_BLOCK_DEVICE + struct part_driver *drv; #ifdef CONFIG_PARTITION_UUIDS /* The common case is no UUID support */ @@ -396,61 +362,27 @@ int get_partition_info(block_dev_desc_t *dev_desc, int part, info->type_guid[0] = 0; #endif - switch (dev_desc->part_type) { -#ifdef CONFIG_MAC_PARTITION - case PART_TYPE_MAC: - if (get_partition_info_mac(dev_desc, part, info) == 0) { - PRINTF("## Valid MAC partition found ##\n"); - return 0; - } - break; -#endif - -#ifdef CONFIG_DOS_PARTITION - case PART_TYPE_DOS: - if (get_partition_info_dos(dev_desc, part, info) == 0) { - PRINTF("## Valid DOS partition found ##\n"); - return 0; - } - break; -#endif - -#ifdef CONFIG_ISO_PARTITION - case PART_TYPE_ISO: - if (get_partition_info_iso(dev_desc, part, info) == 0) { - PRINTF("## Valid ISO boot partition found ##\n"); - return 0; - } - break; -#endif - -#ifdef CONFIG_AMIGA_PARTITION - case PART_TYPE_AMIGA: - if (get_partition_info_amiga(dev_desc, part, info) == 0) { - PRINTF("## Valid Amiga partition found ##\n"); - return 0; - } - break; -#endif - -#ifdef CONFIG_EFI_PARTITION - case PART_TYPE_EFI: - if (get_partition_info_efi(dev_desc, part, info) == 0) { - PRINTF("## Valid EFI partition found ##\n"); - return 0; - } - break; -#endif - default: - break; + drv = part_driver_lookup_type(dev_desc->part_type); + if (!drv) { + debug("## Unknown partition table type %x\n", + dev_desc->part_type); + return -EPROTONOSUPPORT; + } + if (!drv->get_info) { + PRINTF("## Driver %s does not have the get_info() method\n"); + return -ENOSYS; + } + if (drv->get_info(dev_desc, part, info) == 0) { + PRINTF("## Valid %s partition found ##\n", drv->name); + return 0; } #endif /* HAVE_BLOCK_DEVICE */ return -1; } -int get_device(const char *ifname, const char *dev_hwpart_str, - block_dev_desc_t **dev_desc) +int blk_get_device_by_str(const char *ifname, const char *dev_hwpart_str, + struct blk_desc **dev_desc) { char *ep; char *dup_str = NULL; @@ -500,7 +432,7 @@ int get_device(const char *ifname, const char *dev_hwpart_str, * already loaded. */ if(hwpart != 0) - init_part(*dev_desc); + part_init(*dev_desc); #endif cleanup: @@ -511,8 +443,8 @@ cleanup: #define PART_UNSPECIFIED -2 #define PART_AUTO -1 #define MAX_SEARCH_PARTITIONS 16 -int get_device_and_partition(const char *ifname, const char *dev_part_str, - block_dev_desc_t **dev_desc, +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) { int ret = -1; @@ -525,10 +457,6 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str, int part; disk_partition_t tmpinfo; -#if defined CONFIG_SANDBOX && defined CONFIG_CMD_UBIFS -#error Only one of CONFIG_SANDBOX and CONFIG_CMD_UBIFS may be selected -#endif - #ifdef CONFIG_SANDBOX /* * Special-case a pseudo block device "hostfs", to allow access to the @@ -598,7 +526,7 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str, } /* Look up the device */ - dev = get_device(ifname, dev_str, dev_desc); + dev = blk_get_device_by_str(ifname, dev_str, dev_desc); if (dev < 0) goto cleanup; @@ -675,7 +603,7 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str, * other than "auto", use that partition number directly. */ if (part != PART_AUTO) { - ret = get_partition_info(*dev_desc, part, info); + ret = part_get_info(*dev_desc, part, info); if (ret) { printf("** Invalid partition %d **\n", part); goto cleanup; @@ -687,7 +615,7 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str, */ part = 0; for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) { - ret = get_partition_info(*dev_desc, p, info); + ret = part_get_info(*dev_desc, p, info); if (ret) continue; |