Changeset 57 for trunk/src/os2ahci/ata.h

Timestamp:

Dec 14, 2010, 9:35:35 PM (15 years ago)

Author:

markus

Message:

fixed ata_cmd to FIS mapping (LBA-28); removed sector mapping test code

File:

• trunk/src/os2ahci/ata.h (modified) (1 diff)

trunk/src/os2ahci/ata.h

@@ -434 +434 @@
   u16  features;          /* feature bits */
   u16  count;             /* count register (e.g. number of sectors) */
-  u32  lba_l;             /* low 28 bits of LBA (32 bits for 48-bit devices) */
+  u32  lba_l;             /* low 24 bits of LBA-28 (32 bits for 48-bit devices) */
   u16  lba_h;             /* high 16 bits of LBA for 48-bit devices */
   u8   cmd;               /* ATA command field */
-  u8   device;            /* ATA device field */
+  u8   device;            /* ATA device field and upper 4 bits of LBA-28 */
 } ATA_CMD;