[PATCH] DEC PMAGB B framebuffer update

Revive HX frame buffer support for 2.6.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 50 insertions, 24 deletions

diff --git a/include/video/pmagb-b-fb.h b/include/video/pmagb-b-fb.h
index 87b81a55513..7539b9087a8 100644
--- a/include/video/pmagb-b-fb.h
+++ b/include/video/pmagb-b-fb.h
@@ -1,32 +1,58 @@
 /*
- *      linux/drivers/video/pmagb-b-fb.h
+ *      linux/include/video/pmagb-b-fb.h
  *
- *      TurboChannel PMAGB-B framebuffer card support,
- *      Copyright (C) 1999, 2000, 2001 by
- *      Michael Engel <engel@unix-ag.org> and 
- *      Karsten Merker <merker@linuxtag.org>
- *      This file is subject to the terms and conditions of the GNU General
- *      Public License.  See the file COPYING in the main directory of this
- *      archive for more details.
+ *      TURBOchannel PMAGB-B Smart Frame Buffer (SFB) card support,
+ *      Copyright (C) 1999, 2000, 2001 by
+ *      Michael Engel <engel@unix-ag.org> and
+ *      Karsten Merker <merker@linuxtag.org>
+ *      Copyright (c) 2005  Maciej W. Rozycki
+ *
+ *      This file is subject to the terms and conditions of the GNU General
+ *      Public License.  See the file COPYING in the main directory of this
+ *      archive for more details.
  */
 
+/* IOmem resource offsets.  */
+#define PMAGB_B_ROM             0x000000        /* REX option ROM */
+#define PMAGB_B_SFB             0x100000        /* SFB ASIC */
+#define PMAGB_B_GP0             0x140000        /* general purpose output 0 */
+#define PMAGB_B_GP1             0x180000        /* general purpose output 1 */
+#define PMAGB_B_BT459           0x1c0000        /* Bt459 RAMDAC */
+#define PMAGB_B_FBMEM           0x200000        /* frame buffer */
+#define PMAGB_B_SIZE            0x400000        /* address space size */
 
-/*
- * Bt459 RAM DAC register base offset (rel. to TC slot base address)
- */
-#define PMAGB_B_BT459_OFFSET                    0x001C0000
+/* IOmem register offsets.  */
+#define SFB_REG_VID_HOR         0x64            /* video horizontal setup */
+#define SFB_REG_VID_VER         0x68            /* video vertical setup */
+#define SFB_REG_VID_BASE        0x6c            /* video base address */
+#define SFB_REG_TCCLK_COUNT     0x78            /* TURBOchannel clock count */
+#define SFB_REG_VIDCLK_COUNT    0x7c            /* video clock count */
 
-/*
- * Begin of PMAGB-B framebuffer memory, resolution is configurable:
- * 1024x864x8 or 1280x1024x8, settable by jumper on the card
- */
-#define PMAGB_B_ONBOARD_FBMEM_OFFSET    0x00201000
+/* Video horizontal setup register constants.  All bits are r/w.  */
+#define SFB_VID_HOR_BP_SHIFT    0x15            /* back porch */
+#define SFB_VID_HOR_BP_MASK     0x7f
+#define SFB_VID_HOR_SYN_SHIFT   0x0e            /* sync pulse */
+#define SFB_VID_HOR_SYN_MASK    0x7f
+#define SFB_VID_HOR_FP_SHIFT    0x09            /* front porch */
+#define SFB_VID_HOR_FP_MASK     0x1f
+#define SFB_VID_HOR_PIX_SHIFT   0x00            /* active video */
+#define SFB_VID_HOR_PIX_MASK    0x1ff
 
-/*
- * Bt459 register offsets, byte-wide registers
- */
+/* Video vertical setup register constants.  All bits are r/w.  */
+#define SFB_VID_VER_BP_SHIFT    0x16            /* back porch */
+#define SFB_VID_VER_BP_MASK     0x3f
+#define SFB_VID_VER_SYN_SHIFT   0x10            /* sync pulse */
+#define SFB_VID_VER_SYN_MASK    0x3f
+#define SFB_VID_VER_FP_SHIFT    0x0b            /* front porch */
+#define SFB_VID_VER_FP_MASK     0x1f
+#define SFB_VID_VER_SL_SHIFT    0x00            /* active scan lines */
+#define SFB_VID_VER_SL_MASK     0x7ff
+
+/* Video base address register constants.  All bits are r/w.  */
+#define SFB_VID_BASE_MASK       0x1ff           /* video base row address */
 
-#define BT459_ADR_LOW                   BT459_OFFSET + 0x00     /* addr. low */
-#define BT459_ADR_HIGH                  BT459_OFFSET + 0x04     /* addr. high */
-#define BT459_DATA                      BT459_OFFSET + 0x08     /* r/w data */
-#define BT459_CMAP                      BT459_OFFSET + 0x0C     /* color map */
+/* Bt459 register offsets, byte-wide registers.  */
+#define BT459_ADDR_LO           0x0             /* address low */
+#define BT459_ADDR_HI           0x4             /* address high */
+#define BT459_DATA              0x8             /* data window register */
+#define BT459_CMAP              0xc             /* color map window register */