Hi Ruiyu,

On 9/17/2017 9:28 PM, Ni, Ruiyu wrote:
#define _GET_TAG_ID(_Pointer) \
   (((UDF_DESCRIPTOR_TAG *)(_Pointer))->TagIdentifier)

#define IS_PD(_Pointer) \
   ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 5))
#define IS_LVD(_Pointer) \
   ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 6))
#define IS_TD(_Pointer) \
   ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 8))

#define IS_AVDP(_Pointer) \
   ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 2))

Paulo,
If you take a look at Pci22.h in the same directory, all macros are started
as "IS_PCI_".
How about changing the above IS_xxx to IS_UDF_xxx?

Looks good to me. I'll change them.

Shall we change AVDP to AVD, following the same naming style as PD, LVD and TD?

There is no "Anchor Volume Descriptor" but "Anchor Volume Descriptor Pointer", so we still need to keep 'P'.

How about changing _Pointer to _Tag or DescriptorTag?

I will change it to _Tag. _Pointer is really a bad name. Thanks! :-)

Paulo



Thanks/Ray

-----Original Message-----
From: Paulo Alcantara [mailto:[email protected]]
Sent: Sunday, September 17, 2017 9:13 PM
To: [email protected]
Cc: Paulo Alcantara <[email protected]>; Kinney, Michael D
<[email protected]>; Gao, Liming <[email protected]>; Laszlo
Ersek <[email protected]>; Ni, Ruiyu <[email protected]>
Subject: [PATCH v2 1/3] MdePkg: Add UDF volume structure definitions

This patch adds a fewe more UDF structures in order to detect Logical
Volume and Partition descriptors during Main Volume Descriptor Sequence
in Partition driver.

Cc: Michael D Kinney <[email protected]>
Cc: Liming Gao <[email protected]>
Cc: Laszlo Ersek <[email protected]>
Cc: Ruiyu Ni <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Paulo Alcantara <[email protected]>
---
  MdePkg/Include/IndustryStandard/Udf.h | 63 ++++++++++++++++++++
  1 file changed, 63 insertions(+)

diff --git a/MdePkg/Include/IndustryStandard/Udf.h
b/MdePkg/Include/IndustryStandard/Udf.h
index 0febb4bcda..6cc42f8543 100644
--- a/MdePkg/Include/IndustryStandard/Udf.h
+++ b/MdePkg/Include/IndustryStandard/Udf.h
@@ -27,9 +27,19 @@
  #define _GET_TAG_ID(_Pointer) \
    (((UDF_DESCRIPTOR_TAG *)(_Pointer))->TagIdentifier)

+#define IS_PD(_Pointer) \
+  ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 5)) #define IS_LVD(_Pointer) \
+  ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 6)) #define IS_TD(_Pointer) \
+  ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 8))
+
  #define IS_AVDP(_Pointer) \
    ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 2))

+#define LV_UDF_REVISION(_Lv) \
+  *(UINT16 *)(UINTN)(_Lv)->DomainIdentifier.IdentifierSuffix
+
  #pragma pack(1)

  typedef struct {
@@ -55,6 +65,59 @@ typedef struct {
    UINT8               Reserved[480];
  } UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER;

+typedef struct {
+  UINT8           CharacterSetType;
+  UINT8           CharacterSetInfo[63];
+} UDF_CHAR_SPEC;
+
+typedef struct {
+  UINT8           Flags;
+  UINT8           Identifier[23];
+  UINT8           IdentifierSuffix[8];
+} UDF_ENTITY_ID;
+
+typedef struct {
+  UINT32        LogicalBlockNumber;
+  UINT16        PartitionReferenceNumber;
+} UDF_LB_ADDR;
+
+typedef struct {
+  UINT32                           ExtentLength;
+  UDF_LB_ADDR                      ExtentLocation;
+  UINT8                            ImplementationUse[6];
+} UDF_LONG_ALLOCATION_DESCRIPTOR;
+
+typedef struct {
+  UDF_DESCRIPTOR_TAG              DescriptorTag;
+  UINT32                          VolumeDescriptorSequenceNumber;
+  UDF_CHAR_SPEC                   DescriptorCharacterSet;
+  UINT8                           LogicalVolumeIdentifier[128];
+  UINT32                          LogicalBlockSize;
+  UDF_ENTITY_ID                   DomainIdentifier;
+  UDF_LONG_ALLOCATION_DESCRIPTOR  LogicalVolumeContentsUse;
+  UINT32                          MapTableLength;
+  UINT32                          NumberOfPartitionMaps;
+  UDF_ENTITY_ID                   ImplementationIdentifier;
+  UINT8                           ImplementationUse[128];
+  UDF_EXTENT_AD                   IntegritySequenceExtent;
+  UINT8                           PartitionMaps[6];
+} UDF_LOGICAL_VOLUME_DESCRIPTOR;
+
+typedef struct {
+  UDF_DESCRIPTOR_TAG         DescriptorTag;
+  UINT32                     VolumeDescriptorSequenceNumber;
+  UINT16                     PartitionFlags;
+  UINT16                     PartitionNumber;
+  UDF_ENTITY_ID              PartitionContents;
+  UINT8                      PartitionContentsUse[128];
+  UINT32                     AccessType;
+  UINT32                     PartitionStartingLocation;
+  UINT32                     PartitionLength;
+  UDF_ENTITY_ID              ImplementationIdentifier;
+  UINT8                      ImplementationUse[128];
+  UINT8                      Reserved[156];
+} UDF_PARTITION_DESCRIPTOR;
+
  #pragma pack()

  #endif
--
2.11.0


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