1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/* $OpenBSD: gbereg.h,v 1.2 2007/11/27 16:08:06 jasper Exp $ */
/*
* Copyright (c) 2007, Joel Sing <jsing@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* GBE Framebuffer for SGI O2.
*/
#define GBE_BASE 0x16000000
#define GBE_TLB_SIZE 128
#define GBE_TILE_SHIFT 16
#define GBE_TILE_SIZE (1 << GBE_TILE_SHIFT)
/*
* Register locations.
*/
#define GBE_CTRL_STAT 0x00000000 /* General control/status */
#define GBE_DOTCLOCK 0x00000004 /* Dotclock */
#define GBE_DOTCLOCK_RUN 0x00100000 /* Enable dotclock */
#define GBE_VT_XY 0x00010000 /* Current dot coordinates */
#define GBE_VT_XY_FREEZE 0x80000000 /* Freeze pixel counter */
#define GBE_VT_MAXXY 0x00010004 /* */
#define GBE_VT_VSYNC 0x00010008 /* Vertical sync on/off */
#define GBE_VT_HSYNC 0x0001000c /* Horizontal sync on/off */
#define GBE_VT_VBLANK 0x00010010 /* Vertical blanking */
#define GBE_VT_HBLANK 0x00010014 /* Horizontal blanking */
#define GBE_VT_FLAGS 0x00010018 /* Video timing flags */
#define GBE_VT_SYNC_LOW 0x00000010 /* Sync on green */
#define GBE_VT_HPIXEN 0x00010034 /* Horizontal pixel on/off */
#define GBE_VT_VPIXEN 0x00010038 /* Vertical pixel on/off */
#define GBE_VT_HCMAP 0x0001003c /* Horizontal cmap write */
#define GBE_VT_HCMAP_ON_SHIFT 12
#define GBE_VT_VCMAP 0x00010040 /* Vertical cmap write */
#define GBE_VT_VCMAP_ON_SHIFT 12
#define GBE_VT_DIDSTARTXY 0x00010044 /* DID reset at x/y */
#define GBE_VT_CRSSTARTXY 0x00010048 /* CRS reset at x/y */
#define GBE_VT_VCSTARTXY 0x0001004c /* VC reset at x/y */
#define GBE_OVERLAY_TILE 0x00020000 /* Overlay plane - tile width */
#define GBE_OVERLAY_HW_CTRL 0x00020004 /* Overlay plane - h/w control */
#define GBE_OVERLAY_CTRL 0x00020008 /* Overlay plane - control */
#define GBE_OVERLAY_CTRL_DMA_ENABLE 0x00000001
#define GBE_FB_SIZE_TILE 0x00030000 /* Framebuffer - tile size */
#define GBE_FB_SIZE_TILE_WIDTH_SHIFT 5
#define GBE_FB_SIZE_TILE_DEPTH_SHIFT 13
#define GBE_FB_SIZE_TILE_FIFO_RESET_SHIFT 15
#define GBE_FB_SIZE_PIXEL 0x00030004 /* Framebuffer - pixel size */
#define GBE_FB_SIZE_PIXEL_HEIGHT_SHIFT 16
#define GBE_FB_CTRL 0x0003000c /* Framebuffer - control */
#define GBE_FB_CTRL_TILE_PTR_SHIFT 9
#define GBE_FB_CTRL_DMA_ENABLE 0x00000001
#define GBE_DID_CTRL 0x00040004 /* DID control */
#define GBE_MODE 0x00048000 /* Colour mode */
#define GBE_WID_MODE_SHIFT 2
#define GBE_CURSOR_POS 0x00070000 /* Cursor position */
#define GBE_CURSOR_CTRL 0x00070004 /* Cursor control */
/*
* Constants.
*/
#define GBE_FB_DEPTH_8 0
#define GBE_FB_DEPTH_16 1
#define GBE_FB_DEPTH_32 2
#define GBE_CMODE_I8 0
#define GBE_CMODE_I12 1
#define GBE_CMODE_RG3B2 2
#define GBE_CMODE_RGB4 3
#define GBE_CMODE_ARGB5 4
#define GBE_CMODE_RGB8 5
#define GBE_CMODE_RGBA5 6
#define GBE_CMODE_RGB10 7
#define GBE_BMODE_BOTH 3
|
