Changeset 5048be7 in mainline for uspace/srv/bd/ata_bd/ata_bd.h

Timestamp:

2009-08-23T20:41:51Z (14 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update

Children:

21d8020

Parents:

1c1657c

Message:

Move code to compute and program block coordinates to separate functions to avoid duplication.

File:

• uspace/srv/bd/ata_bd/ata_bd.h (modified) (1 diff)

uspace/srv/bd/ata_bd/ata_bd.h

@@ -242 +242 @@
 };
 
+/** Block coordinates */
+typedef struct {
+        /** Addressing mode used */
+        enum addr_mode amode;
+
+        union {
+                /** CHS coordinates */
+                struct {
+                        uint8_t sector;
+                        uint8_t cyl_lo;
+                        uint8_t cyl_hi;
+                };
+                /** LBA coordinates */
+                struct {
+                        uint8_t c0;
+                        uint8_t c1;
+                        uint8_t c2;
+                        uint8_t c3;
+                        uint8_t c4;
+                        uint8_t c5;
+                };
+        };
+
+        /** Lower 4 bits for device/head register */
+        uint8_t h;
+} block_coord_t;
+
 typedef struct {
         bool present;