SPDX: Convert all of our single license tags to Linux Kernel style

[J-u-boot.git] / disk / part_dos.c

diff --git a/disk/part_dos.c b/disk/part_dos.c
index 5f8d949b84c7a680c33ce29e296ea0174cf87727..936cee0d36cedc7ad3fa55180666175582f16bd0 100644 (file)
--- a/disk/part_dos.c
+++ b/disk/part_dos.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2001
  * Raymond Lo, [email protected]
  * Wolfgang Denk, DENX Software Engineering, [email protected].
- *
- * 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,
@@ -87,15 +86,31 @@ static int test_block_type(unsigned char *buffer)
 }
 
 
-static int test_part_dos(struct blk_desc *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;
 }
@@ -111,8 +126,7 @@ static void print_partition_extended(struct blk_desc *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->devnum, ext_part_sector);
                return;
@@ -177,8 +191,7 @@ static int part_get_info_extended(struct blk_desc *dev_desc,
        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->devnum, ext_part_sector);
                return -1;
@@ -191,7 +204,7 @@ static int part_get_info_extended(struct blk_desc *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
@@ -206,46 +219,20 @@ static int part_get_info_extended(struct blk_desc *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->devnum,
-                                               part_num);
-                                       break;
-                               case IF_TYPE_SCSI:
-                                       sprintf((char *)info->name, "sd%c%d",
-                                               'a' + dev_desc->devnum,
-                                               part_num);
-                                       break;
-                               case IF_TYPE_USB:
-                                       sprintf((char *)info->name, "usbd%c%d",
-                                               'a' + dev_desc->devnum,
-                                               part_num);
-                                       break;
-                               case IF_TYPE_DOC:
-                                       sprintf((char *)info->name, "docd%c%d",
-                                               'a' + dev_desc->devnum,
-                                               part_num);
-                                       break;
-                               default:
-                                       sprintf((char *)info->name, "xx%c%d",
-                                               'a' + dev_desc->devnum,
-                                               part_num);
-                                       break;
-                       }
+                       part_set_generic_name(dev_desc, part_num,
+                                             (char *)info->name);
                        /* sprintf(info->type, "%d, pt->sys_ind); */
                        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;
                }
 
@@ -278,7 +265,7 @@ static int part_get_info_extended(struct blk_desc *dev_desc,
                info->blksz = DOS_PART_DEFAULT_SECTOR;
                info->bootable = 0;
                strcpy((char *)info->type, "U-Boot");
-#ifdef CONFIG_PARTITION_UUIDS
+#if CONFIG_IS_ENABLED(PARTITION_UUIDS)
                info->uuid[0] = 0;
 #endif
                return 0;
@@ -287,7 +274,7 @@ static int part_get_info_extended(struct blk_desc *dev_desc,
        return -1;
 }
 
-void print_part_dos(struct blk_desc *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);
@@ -299,12 +286,33 @@ int part_get_info_dos(struct blk_desc *dev_desc, int part,
        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)
+{
+       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(print_part_dos),
-       .test           = test_part_dos,
+       .print          = part_print_ptr(part_print_dos),
+       .test           = part_test_dos,
 };
 
 #endif