[src/trunk]: src/sys/arch/sgimips/dev add some constants, clarify some hw lim...

[macallan <macallan%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/29fefd71ceb9
branches:  trunk
changeset: 765056:29fefd71ceb9
user:      macallan <macallan%NetBSD.org@localhost>
date:      Tue May 17 22:26:33 2011 +0000

description:
add some constants, clarify some hw limitations

diffstat:

 sys/arch/sgimips/dev/crmfbreg.h |  10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diffs (31 lines):

diff -r 0e86feb13a78 -r 29fefd71ceb9 sys/arch/sgimips/dev/crmfbreg.h
--- a/sys/arch/sgimips/dev/crmfbreg.h   Tue May 17 22:19:37 2011 +0000
+++ b/sys/arch/sgimips/dev/crmfbreg.h   Tue May 17 22:26:33 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: crmfbreg.h,v 1.14 2011/04/07 01:20:31 macallan Exp $ */
+/* $NetBSD: crmfbreg.h,v 1.15 2011/05/17 22:26:33 macallan Exp $ */
 
 /*-
  * Copyright (c) 2007 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -166,8 +166,9 @@
 #define                CRMFB_OVR_CONTROL_DMAEN_SHIFT   0
 
 #define CRMFB_FRM_TILESIZE     0x00030000
-#define                CRMFB_FRM_TILESIZE_RHS_SHIFT    0
-#define                CRMFB_FRM_TILESIZE_WIDTH_SHIFT  5
+#define                CRMFB_FRM_TILESIZE_RHS_SHIFT    0 /* width of a partial tile
+                                                  * on the right in 32 BYTES */
+#define                CRMFB_FRM_TILESIZE_WIDTH_SHIFT  5 /* width in tiles */
 #define                CRMFB_FRM_TILESIZE_DEPTH_SHIFT  13
 #define                        CRMFB_FRM_TILESIZE_DEPTH_8      0
 #define                        CRMFB_FRM_TILESIZE_DEPTH_16     1
@@ -193,6 +194,9 @@
 #define CRMFB_MODE             0x00048000
 #define                CRMFB_MODE_TYP_SHIFT            2
 #define                        CRMFB_MODE_TYP_I8       0
+#define                        CRMFB_MODE_TYP_I12      1
+#define                        CRMFB_MODE_TYP_RG3B2    2
+#define                        CRMFB_MODE_TYP_RGB4     3
 #define                        CRMFB_MODE_TYP_ARGB5    4
 #define                        CRMFB_MODE_TYP_RGB8     5
 #define                CRMFB_MODE_BUF_SHIFT            0