Merge tag 'efi-2019-10-rc1' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi
[oweals/u-boot.git] / disk / part_dos.c
index 1e5cb330cd5566f3d638ce2ad1f9a2378f802263..936cee0d36cedc7ad3fa55180666175582f16bd0 100644 (file)
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2001
  * Raymond Lo, lo@routefree.com
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /*
@@ -20,7 +19,7 @@
 #include <memalign.h>
 #include "part_dos.h"
 
-#ifdef HAVE_BLOCK_DEVICE
+#ifdef CONFIG_HAVE_BLOCK_DEVICE
 
 #define DOS_PART_DEFAULT_SECTOR 512
 
@@ -44,7 +43,7 @@ static inline int is_extended(int part_type)
 
 static inline int is_bootable(dos_partition_t *p)
 {
-       return p->boot_ind == 0x80;
+       return (p->sys_ind == 0xef) || (p->boot_ind == 0x80);
 }
 
 static void print_one_part(dos_partition_t *p, lbaint_t ext_part_sector,
@@ -87,22 +86,38 @@ static int test_block_type(unsigned char *buffer)
 }
 
 
-int test_part_dos (block_dev_desc_t *dev_desc)
+static int part_test_dos(struct blk_desc *dev_desc)
 {
+#ifndef CONFIG_SPL_BUILD
+       ALLOC_CACHE_ALIGN_BUFFER(legacy_mbr, mbr, 1);
+
+       if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1)
+               return -1;
+
+       if (test_block_type((unsigned char *)mbr) != DOS_MBR)
+               return -1;
+
+       if (dev_desc->sig_type == SIG_TYPE_NONE &&
+           mbr->unique_mbr_signature != 0) {
+               dev_desc->sig_type = SIG_TYPE_MBR;
+               dev_desc->mbr_sig = mbr->unique_mbr_signature;
+       }
+#else
        ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, dev_desc->blksz);
 
-       if (dev_desc->block_read(dev_desc, 0, 1, (ulong *)buffer) != 1)
+       if (blk_dread(dev_desc, 0, 1, (ulong *)buffer) != 1)
                return -1;
 
        if (test_block_type(buffer) != DOS_MBR)
                return -1;
+#endif
 
        return 0;
 }
 
 /*  Print a partition that is relative to its Extended partition table
  */
-static void print_partition_extended(block_dev_desc_t *dev_desc,
+static void print_partition_extended(struct blk_desc *dev_desc,
                                     lbaint_t ext_part_sector,
                                     lbaint_t relative,
                                     int part_num, unsigned int disksig)
@@ -111,10 +126,9 @@ static void print_partition_extended(block_dev_desc_t *dev_desc,
        dos_partition_t *pt;
        int i;
 
-       if (dev_desc->block_read(dev_desc, ext_part_sector, 1,
-                                (ulong *)buffer) != 1) {
+       if (blk_dread(dev_desc, ext_part_sector, 1, (ulong *)buffer) != 1) {
                printf ("** Can't read partition table on %d:" LBAFU " **\n",
-                       dev_desc->dev, ext_part_sector);
+                       dev_desc->devnum, ext_part_sector);
                return;
        }
        i=test_block_type(buffer);
@@ -167,21 +181,19 @@ static void print_partition_extended(block_dev_desc_t *dev_desc,
 
 /*  Print a partition that is relative to its Extended partition table
  */
-static int get_partition_info_extended (block_dev_desc_t *dev_desc,
-                                lbaint_t ext_part_sector,
-                                lbaint_t relative, int part_num,
-                                int which_part, disk_partition_t *info,
-                                unsigned int disksig)
+static int part_get_info_extended(struct blk_desc *dev_desc,
+                                 lbaint_t ext_part_sector, lbaint_t relative,
+                                 int part_num, int which_part,
+                                 disk_partition_t *info, unsigned int disksig)
 {
        ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, dev_desc->blksz);
        dos_partition_t *pt;
        int i;
        int dos_type;
 
-       if (dev_desc->block_read(dev_desc, ext_part_sector, 1,
-                                (ulong *)buffer) != 1) {
+       if (blk_dread(dev_desc, ext_part_sector, 1, (ulong *)buffer) != 1) {
                printf ("** Can't read partition table on %d:" LBAFU " **\n",
-                       dev_desc->dev, ext_part_sector);
+                       dev_desc->devnum, ext_part_sector);
                return -1;
        }
        if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
@@ -192,7 +204,7 @@ static int get_partition_info_extended (block_dev_desc_t *dev_desc,
                return -1;
        }
 
-#ifdef CONFIG_PARTITION_UUIDS
+#if CONFIG_IS_ENABLED(PARTITION_UUIDS)
        if (!ext_part_sector)
                disksig = le32_to_int(&buffer[DOS_PART_DISKSIG_OFFSET]);
 #endif
@@ -207,41 +219,20 @@ static int get_partition_info_extended (block_dev_desc_t *dev_desc,
                if (((pt->boot_ind & ~0x80) == 0) &&
                    (pt->sys_ind != 0) &&
                    (part_num == which_part) &&
-                   (is_extended(pt->sys_ind) == 0)) {
+                   (ext_part_sector == 0 || is_extended(pt->sys_ind) == 0)) {
                        info->blksz = DOS_PART_DEFAULT_SECTOR;
                        info->start = (lbaint_t)(ext_part_sector +
                                        le32_to_int(pt->start4));
                        info->size  = (lbaint_t)le32_to_int(pt->size4);
-                       switch(dev_desc->if_type) {
-                               case IF_TYPE_IDE:
-                               case IF_TYPE_SATA:
-                               case IF_TYPE_ATAPI:
-                                       sprintf ((char *)info->name, "hd%c%d",
-                                               'a' + dev_desc->dev, part_num);
-                                       break;
-                               case IF_TYPE_SCSI:
-                                       sprintf ((char *)info->name, "sd%c%d",
-                                               'a' + dev_desc->dev, part_num);
-                                       break;
-                               case IF_TYPE_USB:
-                                       sprintf ((char *)info->name, "usbd%c%d",
-                                               'a' + dev_desc->dev, part_num);
-                                       break;
-                               case IF_TYPE_DOC:
-                                       sprintf ((char *)info->name, "docd%c%d",
-                                               'a' + dev_desc->dev, part_num);
-                                       break;
-                               default:
-                                       sprintf ((char *)info->name, "xx%c%d",
-                                               'a' + dev_desc->dev, part_num);
-                                       break;
-                       }
+                       part_set_generic_name(dev_desc, part_num,
+                                             (char *)info->name);
                        /* sprintf(info->type, "%d, pt->sys_ind); */
-                       sprintf ((char *)info->type, "U-Boot");
+                       strcpy((char *)info->type, "U-Boot");
                        info->bootable = is_bootable(pt);
-#ifdef CONFIG_PARTITION_UUIDS
+#if CONFIG_IS_ENABLED(PARTITION_UUIDS)
                        sprintf(info->uuid, "%08x-%02x", disksig, part_num);
 #endif
+                       info->sys_ind = pt->sys_ind;
                        return 0;
                }
 
@@ -259,7 +250,7 @@ static int get_partition_info_extended (block_dev_desc_t *dev_desc,
                        lbaint_t lba_start
                                = le32_to_int (pt->start4) + relative;
 
-                       return get_partition_info_extended (dev_desc, lba_start,
+                       return part_get_info_extended(dev_desc, lba_start,
                                 ext_part_sector == 0 ? lba_start : relative,
                                 part_num, which_part, info, disksig);
                }
@@ -273,8 +264,8 @@ static int get_partition_info_extended (block_dev_desc_t *dev_desc,
                info->size = dev_desc->lba;
                info->blksz = DOS_PART_DEFAULT_SECTOR;
                info->bootable = 0;
-               sprintf ((char *)info->type, "U-Boot");
-#ifdef CONFIG_PARTITION_UUIDS
+               strcpy((char *)info->type, "U-Boot");
+#if CONFIG_IS_ENABLED(PARTITION_UUIDS)
                info->uuid[0] = 0;
 #endif
                return 0;
@@ -283,16 +274,45 @@ static int get_partition_info_extended (block_dev_desc_t *dev_desc,
        return -1;
 }
 
-void print_part_dos (block_dev_desc_t *dev_desc)
+void part_print_dos(struct blk_desc *dev_desc)
 {
        printf("Part\tStart Sector\tNum Sectors\tUUID\t\tType\n");
        print_partition_extended(dev_desc, 0, 0, 1, 0);
 }
 
-int get_partition_info_dos (block_dev_desc_t *dev_desc, int part, disk_partition_t * info)
+int part_get_info_dos(struct blk_desc *dev_desc, int part,
+                     disk_partition_t *info)
+{
+       return part_get_info_extended(dev_desc, 0, 0, 1, part, info, 0);
+}
+
+int is_valid_dos_buf(void *buf)
+{
+       return test_block_type(buf) == DOS_MBR ? 0 : -1;
+}
+
+int write_mbr_partition(struct blk_desc *dev_desc, void *buf)
 {
-       return get_partition_info_extended(dev_desc, 0, 0, 1, part, info, 0);
+       if (is_valid_dos_buf(buf))
+               return -1;
+
+       /* write MBR */
+       if (blk_dwrite(dev_desc, 0, 1, buf) != 1) {
+               printf("%s: failed writing '%s' (1 blks at 0x0)\n",
+                      __func__, "MBR");
+               return 1;
+       }
+
+       return 0;
 }
 
+U_BOOT_PART_TYPE(dos) = {
+       .name           = "DOS",
+       .part_type      = PART_TYPE_DOS,
+       .max_entries    = DOS_ENTRY_NUMBERS,
+       .get_info       = part_get_info_ptr(part_get_info_dos),
+       .print          = part_print_ptr(part_print_dos),
+       .test           = part_test_dos,
+};
 
 #endif