]> git.ipfire.org Git - people/ms/u-boot.git/blobdiff - disk/part.c
dm: part: Rename some partition functions
[people/ms/u-boot.git] / disk / part.c
index 7bdc90eff701183934874195356c36e6d5a4ab5f..9a78cceadbc77971146882fc3a17fd13d0460c33 100644 (file)
@@ -2,30 +2,16 @@
  * (C) Copyright 2001
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
 #include <command.h>
+#include <errno.h>
 #include <ide.h>
 #include <malloc.h>
 #include <part.h>
+#include <ubifs_uboot.h>
 
 #undef PART_DEBUG
 
 #define PRINTF(fmt,args...)
 #endif
 
-/* Rather than repeat this expression each time, add a define for it */
-#if (defined(CONFIG_CMD_IDE) || \
-     defined(CONFIG_CMD_SATA) || \
-     defined(CONFIG_CMD_SCSI) || \
-     defined(CONFIG_CMD_USB) || \
-     defined(CONFIG_MMC) || \
-     defined(CONFIG_SYSTEMACE) )
-#define HAVE_BLOCK_DEVICE
-#endif
-
 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);
 };
 
 static const struct block_drvr block_drvr[] = {
@@ -64,10 +41,17 @@ static const struct block_drvr block_drvr[] = {
        { .name = "usb", .get_dev = usb_stor_get_dev, },
 #endif
 #if defined(CONFIG_MMC)
-       { .name = "mmc", .get_dev = mmc_get_dev, },
+       {
+               .name = "mmc",
+               .get_dev = mmc_get_dev,
+               .select_hwpart = mmc_select_hwpart,
+       },
 #endif
 #if defined(CONFIG_SYSTEMACE)
        { .name = "ace", .get_dev = systemace_get_dev, },
+#endif
+#if defined(CONFIG_SANDBOX)
+       { .name = "host", .get_dev = host_get_dev, },
 #endif
        { },
 };
@@ -75,11 +59,29 @@ static const struct block_drvr block_drvr[] = {
 DECLARE_GLOBAL_DATA_PTR;
 
 #ifdef HAVE_BLOCK_DEVICE
-block_dev_desc_t *get_dev(const char *ifname, int dev)
+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;
 
        if (!ifname)
                return NULL;
@@ -91,18 +93,42 @@ block_dev_desc_t *get_dev(const char *ifname, int dev)
        while (drvr->name) {
                name = drvr->name;
                reloc_get_dev = drvr->get_dev;
+               select_hwpart = drvr->select_hwpart;
 #ifdef CONFIG_NEEDS_MANUAL_RELOC
                name += gd->reloc_off;
                reloc_get_dev += gd->reloc_off;
-#endif
-               if (strncmp(ifname, name, strlen(name)) == 0)
-                       return reloc_get_dev(dev);
+               if (select_hwpart)
+                       select_hwpart += gd->reloc_off;
+#endif
+               if (strncmp(ifname, name, strlen(name)) == 0) {
+                       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);
+                       if (ret < 0)
+                               return NULL;
+                       return dev_desc;
+               }
                drvr++;
        }
        return NULL;
 }
+
+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(const char *ifname, int dev)
+struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart)
+{
+       return NULL;
+}
+
+struct blk_desc *blk_get_dev(const char *ifname, int dev)
 {
        return NULL;
 }
@@ -125,7 +151,7 @@ typedef lbaint_t lba512_t;
  * Overflowless variant of (block_count * mul_by / div_by)
  * when div_by > mul_by
  */
-static lba512_t lba512_muldiv (lba512_t block_count, lba512_t mul_by, lba512_t div_by)
+static lba512_t lba512_muldiv(lba512_t block_count, lba512_t mul_by, lba512_t div_by)
 {
        lba512_t bc_quot, bc_rem;
 
@@ -135,7 +161,7 @@ static lba512_t lba512_muldiv (lba512_t block_count, lba512_t mul_by, lba512_t d
        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 */
 
@@ -207,7 +233,8 @@ void dev_print (block_dev_desc_t *dev_desc)
 
                lba512 = (lba * (dev_desc->blksz/512));
                /* round to 1 digit */
-               mb = lba512_muldiv(lba512, 10, 2048);   /* 2048 = (1024 * 1024) / 512 MB */
+               /* 2048 = (1024 * 1024) / 512 MB */
+               mb = lba512_muldiv(lba512, 10, 2048);
 
                mb_quot = mb / 10;
                mb_rem  = mb - (10 * mb_quot);
@@ -240,55 +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
-
-#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
+       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_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:
@@ -312,154 +317,134 @@ static void print_part_header (const char *type, block_dev_desc_t * dev_desc)
        case IF_TYPE_MMC:
                puts ("MMC");
                break;
+       case IF_TYPE_HOST:
+               puts("HOST");
+               break;
        default:
                puts ("UNKNOWN");
                break;
        }
        printf (" device %d  --   Partition Type: %s\n\n",
                        dev_desc->dev, 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);
-               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);
+       drv = part_driver_lookup_type(dev_desc->part_type);
+       if (!drv) {
+               printf("## Unknown partition table type %x\n",
+                      dev_desc->part_type);
                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
-                                       , disk_partition_t *info)
+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 */
        info->uuid[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;
+#ifdef CONFIG_PARTITION_TYPE_GUID
+       info->type_guid[0] = 0;
 #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_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;
-       int dev;
+       char *dup_str = NULL;
+       const char *dev_str, *hwpart_str;
+       int dev, hwpart;
+
+       hwpart_str = strchr(dev_hwpart_str, '.');
+       if (hwpart_str) {
+               dup_str = strdup(dev_hwpart_str);
+               dup_str[hwpart_str - dev_hwpart_str] = 0;
+               dev_str = dup_str;
+               hwpart_str++;
+       } else {
+               dev_str = dev_hwpart_str;
+               hwpart = 0;
+       }
 
        dev = simple_strtoul(dev_str, &ep, 16);
        if (*ep) {
                printf("** Bad device specification %s %s **\n",
                       ifname, dev_str);
-               return -1;
+               dev = -1;
+               goto cleanup;
+       }
+
+       if (hwpart_str) {
+               hwpart = simple_strtoul(hwpart_str, &ep, 16);
+               if (*ep) {
+                       printf("** Bad HW partition specification %s %s **\n",
+                           ifname, hwpart_str);
+                       dev = -1;
+                       goto cleanup;
+               }
        }
 
-       *dev_desc = get_dev(ifname, dev);
+       *dev_desc = get_dev_hwpart(ifname, dev, hwpart);
        if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) {
-               printf("** Bad device %s %s **\n", ifname, dev_str);
-               return -1;
+               printf("** Bad device %s %s **\n", ifname, dev_hwpart_str);
+               dev = -1;
+               goto cleanup;
        }
 
+#ifdef HAVE_BLOCK_DEVICE
+       /*
+        * Updates the partition table for the specified hw partition.
+        * Does not need to be done for hwpart 0 since it is default and
+        * already loaded.
+        */
+       if(hwpart != 0)
+               part_init(*dev_desc);
+#endif
+
+cleanup:
+       free(dup_str);
        return dev;
 }
 
 #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;
@@ -472,6 +457,56 @@ 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
+        * host's own filesystem.
+        */
+       if (0 == strcmp(ifname, "hostfs")) {
+               *dev_desc = NULL;
+               info->start = 0;
+               info->size = 0;
+               info->blksz = 0;
+               info->bootable = 0;
+               strcpy((char *)info->type, BOOT_PART_TYPE);
+               strcpy((char *)info->name, "Sandbox host");
+#ifdef CONFIG_PARTITION_UUIDS
+               info->uuid[0] = 0;
+#endif
+#ifdef CONFIG_PARTITION_TYPE_GUID
+               info->type_guid[0] = 0;
+#endif
+
+               return 0;
+       }
+#endif
+
+#ifdef CONFIG_CMD_UBIFS
+       /*
+        * Special-case ubi, ubi goes through a mtd, rathen then through
+        * a regular block device.
+        */
+       if (0 == strcmp(ifname, "ubi")) {
+               if (!ubifs_is_mounted()) {
+                       printf("UBIFS not mounted, use ubifsmount to mount volume first!\n");
+                       return -1;
+               }
+
+               *dev_desc = NULL;
+               memset(info, 0, sizeof(*info));
+               strcpy((char *)info->type, BOOT_PART_TYPE);
+               strcpy((char *)info->name, "UBI");
+#ifdef CONFIG_PARTITION_UUIDS
+               info->uuid[0] = 0;
+#endif
+               return 0;
+       }
+#endif
+
        /* If no dev_part_str, use bootdevice environment variable */
        if (!dev_part_str || !strlen(dev_part_str) ||
            !strcmp(dev_part_str, "-"))
@@ -495,7 +530,7 @@ 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;
 
@@ -541,6 +576,8 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
                        goto cleanup;
                }
 
+               (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
+
                info->start = 0;
                info->size = (*dev_desc)->lba;
                info->blksz = (*dev_desc)->blksz;
@@ -550,6 +587,9 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
 #ifdef CONFIG_PARTITION_UUIDS
                info->uuid[0] = 0;
 #endif
+#ifdef CONFIG_PARTITION_TYPE_GUID
+               info->type_guid[0] = 0;
+#endif
 
                ret = 0;
                goto cleanup;
@@ -567,7 +607,7 @@ 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;
@@ -579,7 +619,7 @@ 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;
 
@@ -624,6 +664,8 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
                goto cleanup;
        }
 
+       (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
+
        ret = part;
        goto cleanup;