PERFORCE change 54905 for review

[Juli Mallett]

http://perforce.freebsd.org/chv.cgi?CH=54905

Change 54905 by jmallett at jmallett_oingo on 2004/06/14 06:12:51

	Give a half-assed go at an ofwdisk alike arcs_disk.  Right now it
	will only report the disk as being 8 blocks big.  I'm hopefuly I can
	use this to read the volume header and figure out the size of the
	disk that way and reattach.  I don't know if that's acceptable in the
	GEOM world.  I think I can do it all in probe, though.  Also need to do
	a lot to ARCS to give it some physical pages it can map into a space
	that's likely to work for ARCS, so that we don't have to worry about
	what address space buffers get passed to it.  Right now this probably
	doesn't even come close to working, it's being committed as a
	placeholder.

Affected files ...

.. //depot/projects/mips/sys/conf/files.mips#35 edit
.. //depot/projects/mips/sys/dev/arcs/arcs.h#4 edit
.. //depot/projects/mips/sys/dev/arcs/arcs_disk.c#1 add
.. //depot/projects/mips/sys/mips/conf/INDY#11 edit
.. //depot/projects/mips/sys/mips/sgimips/machdep_sgimips.c#33 edit

Differences ...

==== //depot/projects/mips/sys/conf/files.mips#35 (text+ko) ====

@@ -57,6 +57,7 @@
 # This stanza is device files.
 dev/arcs/arcs.c			optional	arcs
 dev/arcs/arcs_console.c		optional	arcs
+dev/arcs/arcs_disk.c		optional	arcs_disk arcs
 
 mips/sgimips/gio/gio.c		optional	gio
 

==== //depot/projects/mips/sys/dev/arcs/arcs.h#4 (text+ko) ====

@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $P4: //depot/projects/mips/sys/dev/arcs/arcs.h#3 $
+ * $P4: //depot/projects/mips/sys/dev/arcs/arcs.h#4 $
  */
 
 #ifndef	_DEV_ARCS_ARCS_H_
@@ -70,6 +70,19 @@
 #define	ARCS_FD_StandardInput			0
 #define	ARCS_FD_StandardOutput			1
 
+/*
+ * Open() mode.
+ */
+#define	ARCS_O_RDONLY	0
+#define	ARCS_O_WRONLY	1
+#define	ARCS_O_RDWR	2
+
+/*
+ * Seek() whence.
+ */
+#define	ARCS_SEEK_ABSOLUTE	0
+#define	ARCS_SEEK_RELATIVE	1
+
 /* Pages are 4K in ARCS. */
 #define	ARCS_PAGESHIFT				12
 

==== //depot/projects/mips/sys/mips/conf/INDY#11 (text+ko) ====

@@ -19,7 +19,8 @@
 options		IP22			#IP22 (Indy, Indigo2, ...)
 
 # Hardware support
-device		arcs			#ARCS Firmware + Console
+device		arcs			#ARCS Firmware + Console.
+device		arcs_disk		#ARCS Disk.
 device		imc			#IMC bus.
 device		hpc			#HPC bus.
 device		gio			#GIO bus.

==== //depot/projects/mips/sys/mips/sgimips/machdep_sgimips.c#33 (text+ko) ====

@@ -249,6 +249,7 @@
 	switch (mach_type) {
 	case MACH_SGI_IP22:
 		device_add_child(root_bus, "imc", 0);
+		device_add_child(root_bus, "arcs_disk", 0);
 		break;
 	default:
 		panic("cannot autoconfigure type %d", mach_type);