mtd: spi-nor: Parse SFDP SCCR Map

[platform/kernel/u-boot.git] / include / uuid.h

diff --git a/include/uuid.h b/include/uuid.h
index e8feeed..4a4883d 100644 (file)
--- a/include/uuid.h
+++ b/include/uuid.h
@@ -1,21 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2014 Samsung Electronics
  * Przemyslaw Marczak <p.marczak@samsung.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 #ifndef __UUID_H__
 #define __UUID_H__
 
-enum {
-       UUID_STR_FORMAT_STD,
-       UUID_STR_FORMAT_GUID
-};
+#include <linux/bitops.h>
 
+/* This is structure is in big-endian */
+struct uuid {
+       unsigned int time_low;
+       unsigned short time_mid;
+       unsigned short time_hi_and_version;
+       unsigned char clock_seq_hi_and_reserved;
+       unsigned char clock_seq_low;
+       unsigned char node[6];
+} __packed;
+
+/* Bits of a bitmask specifying the output format for GUIDs */
+#define UUID_STR_FORMAT_STD    0
+#define UUID_STR_FORMAT_GUID   BIT(0)
+#define UUID_STR_UPPER_CASE    BIT(1)
+
+/* Use UUID_STR_LEN + 1 for string space */
 #define UUID_STR_LEN           36
-#define UUID_BIN_LEN           16
+#define UUID_BIN_LEN           sizeof(struct uuid)
+
+#define UUID_VERSION_MASK      0xf000
+#define UUID_VERSION_SHIFT     12
+#define UUID_VERSION           0x4
+
+#define UUID_VARIANT_MASK      0xc0
+#define UUID_VARIANT_SHIFT     7
+#define UUID_VARIANT           0x1
 
 int uuid_str_valid(const char *uuid);
-int uuid_str_to_bin(char *uuid_str, unsigned char *uuid_bin, int str_format);
-void uuid_bin_to_str(unsigned char *uuid_bin, char *uuid_str, int str_format);
+int uuid_str_to_bin(const char *uuid_str, unsigned char *uuid_bin,
+                   int str_format);
+void uuid_bin_to_str(const unsigned char *uuid_bin, char *uuid_str,
+                    int str_format);
+int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin);
+const char *uuid_guid_get_str(const unsigned char *guid_bin);
+void gen_rand_uuid(unsigned char *uuid_bin);
+void gen_rand_uuid_str(char *uuid_str, int str_format);
 #endif