]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - disk/part.c
sandbox: Use os functions to read host device tree
[karo-tx-uboot.git] / disk / part.c
index 8ca5d4bdfc7a7203dede5d7b6bc6f8a226ca0b5a..b8c6aac801626f165bab1bb800ccf657c5a944f4 100644 (file)
@@ -2,28 +2,13 @@
  * (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 <ide.h>
+#include <malloc.h>
 #include <part.h>
 
 #undef PART_DEBUG
 #define PRINTF(fmt,args...)
 #endif
 
-#if (defined(CONFIG_CMD_IDE) || \
-     defined(CONFIG_CMD_MG_DISK) || \
-     defined(CONFIG_CMD_SATA) || \
-     defined(CONFIG_CMD_SCSI) || \
-     defined(CONFIG_CMD_USB) || \
-     defined(CONFIG_MMC) || \
-     defined(CONFIG_SYSTEMACE) )
-
 struct block_drvr {
        char *name;
        block_dev_desc_t* (*get_dev)(int dev);
@@ -66,15 +43,16 @@ static const struct block_drvr block_drvr[] = {
 #if defined(CONFIG_SYSTEMACE)
        { .name = "ace", .get_dev = systemace_get_dev, },
 #endif
-#if defined(CONFIG_CMD_MG_DISK)
-       { .name = "mgd", .get_dev = mg_disk_get_dev, },
+#if defined(CONFIG_SANDBOX)
+       { .name = "host", .get_dev = host_get_dev, },
 #endif
        { },
 };
 
 DECLARE_GLOBAL_DATA_PTR;
 
-block_dev_desc_t *get_dev(char* ifname, int dev)
+#ifdef HAVE_BLOCK_DEVICE
+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);
@@ -101,19 +79,13 @@ 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;
 }
 #endif
 
-#if (defined(CONFIG_CMD_IDE) || \
-     defined(CONFIG_CMD_MG_DISK) || \
-     defined(CONFIG_CMD_SATA) || \
-     defined(CONFIG_CMD_SCSI) || \
-     defined(CONFIG_CMD_USB) || \
-     defined(CONFIG_MMC) || \
-     defined(CONFIG_SYSTEMACE) )
+#ifdef HAVE_BLOCK_DEVICE
 
 /* ------------------------------------------------------------------------- */
 /*
@@ -204,7 +176,7 @@ void dev_print (block_dev_desc_t *dev_desc)
                break;
        }
        puts ("\n");
-       if ((dev_desc->lba * dev_desc->blksz)>0L) {
+       if (dev_desc->lba > 0L && dev_desc->blksz > 0L) {
                ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem;
                lbaint_t lba;
 
@@ -243,19 +215,7 @@ void dev_print (block_dev_desc_t *dev_desc)
 }
 #endif
 
-#if (defined(CONFIG_CMD_IDE) || \
-     defined(CONFIG_CMD_MG_DISK) || \
-     defined(CONFIG_CMD_SATA) || \
-     defined(CONFIG_CMD_SCSI) || \
-     defined(CONFIG_CMD_USB) || \
-     defined(CONFIG_MMC)               || \
-     defined(CONFIG_SYSTEMACE) )
-
-#if defined(CONFIG_MAC_PARTITION) || \
-    defined(CONFIG_DOS_PARTITION) || \
-    defined(CONFIG_ISO_PARTITION) || \
-    defined(CONFIG_AMIGA_PARTITION) || \
-    defined(CONFIG_EFI_PARTITION)
+#ifdef HAVE_BLOCK_DEVICE
 
 void init_part (block_dev_desc_t * dev_desc)
 {
@@ -294,63 +254,15 @@ void init_part (block_dev_desc_t * dev_desc)
            return;
        }
 #endif
+       dev_desc->part_type = PART_TYPE_UNKNOWN;
 }
 
 
-int get_partition_info (block_dev_desc_t *dev_desc, int part
-                                       , disk_partition_t *info)
-{
-       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;
-       }
-       return (-1);
-}
+#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)
 {
@@ -377,6 +289,9 @@ 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;
@@ -385,6 +300,8 @@ static void print_part_header (const char *type, block_dev_desc_t * dev_desc)
                        dev_desc->dev, type);
 }
 
+#endif /* any CONFIG_..._PARTITION */
+
 void print_part (block_dev_desc_t * dev_desc)
 {
 
@@ -431,11 +348,270 @@ void print_part (block_dev_desc_t * dev_desc)
        puts ("## Unknown partition table\n");
 }
 
+#endif /* HAVE_BLOCK_DEVICE */
+
+int get_partition_info(block_dev_desc_t *dev_desc, int part
+                                       , disk_partition_t *info)
+{
+#ifdef HAVE_BLOCK_DEVICE
+
+#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;
+#endif
 
-#else  /* neither MAC nor DOS nor ISO nor AMIGA nor EFI partition configured */
-# error neither CONFIG_MAC_PARTITION nor CONFIG_DOS_PARTITION
-# error nor CONFIG_ISO_PARTITION nor CONFIG_AMIGA_PARTITION
-# error nor CONFIG_EFI_PARTITION configured!
+#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;
+       }
+#endif /* HAVE_BLOCK_DEVICE */
+
+       return -1;
+}
+
+int get_device(const char *ifname, const char *dev_str,
+              block_dev_desc_t **dev_desc)
+{
+       char *ep;
+       int dev;
+
+       dev = simple_strtoul(dev_str, &ep, 16);
+       if (*ep) {
+               printf("** Bad device specification %s %s **\n",
+                      ifname, dev_str);
+               return -1;
+       }
+
+       *dev_desc = get_dev(ifname, dev);
+       if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) {
+               printf("** Bad device %s %s **\n", ifname, dev_str);
+               return -1;
+       }
+
+       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,
+                            disk_partition_t *info, int allow_whole_dev)
+{
+       int ret = -1;
+       const char *part_str;
+       char *dup_str = NULL;
+       const char *dev_str;
+       int dev;
+       char *ep;
+       int p;
+       int part;
+       disk_partition_t tmpinfo;
+
+       /* If no dev_part_str, use bootdevice environment variable */
+       if (!dev_part_str || !strlen(dev_part_str) ||
+           !strcmp(dev_part_str, "-"))
+               dev_part_str = getenv("bootdevice");
+
+       /* If still no dev_part_str, it's an error */
+       if (!dev_part_str) {
+               printf("** No device specified **\n");
+               goto cleanup;
+       }
+
+       /* Separate device and partition ID specification */
+       part_str = strchr(dev_part_str, ':');
+       if (part_str) {
+               dup_str = strdup(dev_part_str);
+               dup_str[part_str - dev_part_str] = 0;
+               dev_str = dup_str;
+               part_str++;
+       } else {
+               dev_str = dev_part_str;
+       }
+
+       /* Look up the device */
+       dev = get_device(ifname, dev_str, dev_desc);
+       if (dev < 0)
+               goto cleanup;
+
+       /* Convert partition ID string to number */
+       if (!part_str || !*part_str) {
+               part = PART_UNSPECIFIED;
+       } else if (!strcmp(part_str, "auto")) {
+               part = PART_AUTO;
+       } else {
+               /* Something specified -> use exactly that */
+               part = (int)simple_strtoul(part_str, &ep, 16);
+               /*
+                * Less than whole string converted,
+                * or request for whole device, but caller requires partition.
+                */
+               if (*ep || (part == 0 && !allow_whole_dev)) {
+                       printf("** Bad partition specification %s %s **\n",
+                           ifname, dev_part_str);
+                       goto cleanup;
+               }
+       }
+
+       /*
+        * No partition table on device,
+        * or user requested partition 0 (entire device).
+        */
+       if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) ||
+           (part == 0)) {
+               if (!(*dev_desc)->lba) {
+                       printf("** Bad device size - %s %s **\n", ifname,
+                              dev_str);
+                       goto cleanup;
+               }
+
+               /*
+                * If user specified a partition ID other than 0,
+                * or the calling command only accepts partitions,
+                * it's an error.
+                */
+               if ((part > 0) || (!allow_whole_dev)) {
+                       printf("** No partition table - %s %s **\n", ifname,
+                              dev_str);
+                       goto cleanup;
+               }
+
+               (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
+
+               info->start = 0;
+               info->size = (*dev_desc)->lba;
+               info->blksz = (*dev_desc)->blksz;
+               info->bootable = 0;
+               strcpy((char *)info->type, BOOT_PART_TYPE);
+               strcpy((char *)info->name, "Whole Disk");
+#ifdef CONFIG_PARTITION_UUIDS
+               info->uuid[0] = 0;
+#endif
+
+               ret = 0;
+               goto cleanup;
+       }
+
+       /*
+        * Now there's known to be a partition table,
+        * not specifying a partition means to pick partition 1.
+        */
+       if (part == PART_UNSPECIFIED)
+               part = 1;
+
+       /*
+        * If user didn't specify a partition number, or did specify something
+        * other than "auto", use that partition number directly.
+        */
+       if (part != PART_AUTO) {
+               ret = get_partition_info(*dev_desc, part, info);
+               if (ret) {
+                       printf("** Invalid partition %d **\n", part);
+                       goto cleanup;
+               }
+       } else {
+               /*
+                * Find the first bootable partition.
+                * If none are bootable, fall back to the first valid partition.
+                */
+               part = 0;
+               for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
+                       ret = get_partition_info(*dev_desc, p, info);
+                       if (ret)
+                               continue;
+
+                       /*
+                        * First valid partition, or new better partition?
+                        * If so, save partition ID.
+                        */
+                       if (!part || info->bootable)
+                               part = p;
+
+                       /* Best possible partition? Stop searching. */
+                       if (info->bootable)
+                               break;
+
+                       /*
+                        * We now need to search further for best possible.
+                        * If we what we just queried was the best so far,
+                        * save the info since we over-write it next loop.
+                        */
+                       if (part == p)
+                               tmpinfo = *info;
+               }
+               /* If we found any acceptable partition */
+               if (part) {
+                       /*
+                        * If we searched all possible partition IDs,
+                        * return the first valid partition we found.
+                        */
+                       if (p == MAX_SEARCH_PARTITIONS + 1)
+                               *info = tmpinfo;
+               } else {
+                       printf("** No valid partitions found **\n");
+                       ret = -1;
+                       goto cleanup;
+               }
+       }
+       if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) {
+               printf("** Invalid partition type \"%.32s\""
+                       " (expect \"" BOOT_PART_TYPE "\")\n",
+                       info->type);
+               ret  = -1;
+               goto cleanup;
+       }
+
+       (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
+
+       ret = part;
+       goto cleanup;
+
+cleanup:
+       free(dup_str);
+       return ret;
+}