Changeset 154 for trunk/src/os2ahci/os2ahci.h

Timestamp:

Apr 10, 2013, 6:47:05 PM (12 years ago)

Author:

David Azarewicz

Message:

Begin adding user info output.
Added LVM support.

File:

• trunk/src/os2ahci/os2ahci.h (modified) (4 diffs)

trunk/src/os2ahci/os2ahci.h

@@ -119 +119 @@
 
 /* TRACE macros (for our internal ring buffer trace) */
+#define AHCI_TRACE_BUF_SIZE  0x8000U /* 32k */
+#define AHCI_INFO_BUF_SIZE  0x1000U /* 4k */
 #define TRACE_ACTIVE  (debug > 0 && com_base == 0)
 
@@ -386 +388 @@
   BUF_TO_SG                            /* copy from buffer to S/G list */
 } SG_MEMCPY_DIRECTION;
+
+/* Define the size of a disk name.  Disk Names are user defined names given to physical disk drives in the system. */
+#define DLA_TABLE_SIGNATURE1  0x424D5202L
+#define DLA_TABLE_SIGNATURE2  0x44464D50L
+#define DISK_NAME_SIZE    20
+
+typedef struct _DLA_Table_Sector { /* DTS */
+     ULONG DLA_Signature1;         /* The magic signature (part 1) of a Drive Letter Assignment Table. */
+     ULONG DLA_Signature2;         /* The magic signature (part 2) of a Drive Letter Assignment Table. */
+     ULONG DLA_CRC;                /* The 32 bit CRC for this sector.  Calculated assuming that this field and all unused space in the sector is 0. */
+     ULONG Disk_Serial_Number;     /* The serial number assigned to this disk. */
+     ULONG Boot_Disk_Serial_Number;/* The serial number of the disk used to boot the system.  This is for conflict resolution when multiple volumes
+                                      want the same drive letter.  Since LVM.EXE will not let this situation happen, the only way to get this situation
+                                      is for the disk to have been altered by something other than LVM.EXE, or if a disk drive has been moved from one
+                                      machine to another.  If the drive has been moved, then it should have a different Boot_Disk_Serial_Number.  Thus,
+                                      we can tell which disk drive is the "foreign" drive and therefore reject its claim for the drive letter in question.
+                                      If we find that all of the claimaints have the same Boot_Disk_Serial_Number, then we must assign drive letters on
+                                      a first come, first serve basis.                                          */
+     ULONG Install_Flags;          /* Used by the Install program. */
+     ULONG Cylinders;
+     ULONG Heads_Per_Cylinder;
+     ULONG Sectors_Per_Track;
+     char  Disk_Name[DISK_NAME_SIZE];  /* The name assigned to the disk containing this sector. */
+     UCHAR Reboot;                 /* For use by Install.  Used to keep track of reboots initiated by install. */
+     BYTE  Reserved[3];            /* Alignment. */
+                                   /* These are the four entries which correspond to the entries in the partition table. */
+} DLA_Table_Sector, *PDLA_Table_Sector;
 
 /* -------------------------- function prototypes -------------------------- */
@@ -498 +527 @@
 
 /* trace.c */
-extern void        trace_init    (void);
+extern void        trace_init    (u16);
 extern void        trace_exit    (void);
 extern void        trace_write   (u8 _far *s, int len);
 extern u16         trace_read    (u8 _far *buf, u16 cb_buf);
-//NOT_USED extern u16         trace_bytes_avail(void);
 extern u16         trace_char_dev(RP_RWV _far *rwrb);
+extern void        build_user_info(void);
 
 /* pci.c */
@@ -544 +573 @@
 extern int           force_write_cache; /* if != 0, force write cache */
 extern int           verbosity;     /* if != 0, show some info during boot */
+extern int           use_lvm_info;
 
 extern HDRIVER       rm_drvh;       /* resource manager driver handle */