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/* $OpenBSD: gbereg.h,v 1.4 2009/02/24 14:37:29 jsing 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_REG_SIZE 0x100000
#define GBE_TLB_SIZE 128
#define GBE_TILE_SHIFT 16
#define GBE_TILE_SIZE (1 << GBE_TILE_SHIFT)
#define GBE_TILE_WIDTH 512 /* Width of tile in bytes. */
#define GBE_TILE_WIDTH_SHIFT 9
#define GBE_TILE_HEIGHT 128 /* Height of tile in bytes. */
#define GBE_TILE_HEIGHT_SHIFT 7
/*
* GBE Registers.
*/
#define GBE_CTRL_STAT 0x00000000 /* General control/status */
#define GBE_CURSOR_ON 0x00000001
#define GBE_DOTCLOCK 0x00000004 /* Dotclock */
#define GBE_DOTCLOCK_RUN 0x00100000 /* Enable dotclock */
#define GBE_VT_XY 0x00010000 /* Current dot coordinates */
#define GBE_VT_XY_X_SHIFT 0
#define GBE_VT_XY_X_MASK 0x00000fff
#define GBE_VT_XY_Y_SHIFT 12
#define GBE_VT_XY_Y_MASK 0x00fff000
#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_HPIX 0x00010034 /* Horizontal pixel on/off */
#define GBE_VT_VPIX 0x00010038 /* Vertical pixel on/off */
#define GBE_VT_VPIX_OFF_MASK 0x00000fff
#define GBE_VT_VPIX_OFF_SHIFT 0
#define GBE_VT_VPIX_ON_MASK 0x00fff000
#define GBE_VT_VPIX_ON_SHIFT 12
#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_HW_CTRL 0x00030008 /* Framebuffer - hardware control */
#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_HW_CTRL 0x00040000 /* DID hardware control */
#define GBE_DID_CTRL 0x00040004 /* DID control */
#define GBE_MODE 0x00048000 /* Colour mode */
#define GBE_WID_MODE_SHIFT 2
#define GBE_CMAP 0x050000 /* Colourmap */
#define GBE_CMAP_ENTRIES 6144
#define GBE_CMAP_FIFO 0x058000 /* Colourmap FIFO status */
#define GBE_CMAP_FIFO_ENTRIES 63
#define GBE_GMAP 0x060000 /* Gammamap */
#define GBE_GMAP_ENTRIES 256
#define GBE_CURSOR_POS 0x00070000 /* Cursor position */
#define GBE_CURSOR_CTRL 0x00070004 /* Cursor control */
/*
* GBE Constants.
*/
#define GBE_FB_DEPTH_8 0
#define GBE_FB_DEPTH_16 1
#define GBE_FB_DEPTH_32 2
#define GBE_CMODE_I8 0 /* 8 bit indexed */
#define GBE_CMODE_I12 1 /* 12 bit indexed */
#define GBE_CMODE_RG3B2 2 /* 3:3:2 direct */
#define GBE_CMODE_RGB4 3 /* 4:4:4 direct */
#define GBE_CMODE_ARGB5 4 /* 1:5:5:5 direct */
#define GBE_CMODE_RGB8 5 /* 8:8:8 direct */
#define GBE_CMODE_RGBA5 6 /* 5:5:5:5 direct */
#define GBE_CMODE_RGB10 7 /* 10:10:10 direct */
#define GBE_BMODE_BOTH 3
/*
* Rendering Engine Registers.
*/
#define RE_BASE 0x15000000
#define RE_REG_SIZE 0x5000
#define RE_START 0x00000800 /* Start rendering operation. */
/* TLB Registers. */
#define RE_TLB_A 0x00001000 /* 256 16-bit tile entries. */
#define RE_TLB_B 0x00001200
#define RE_TLB_C 0x00001400
#define RE_TLB_TEX 0x00001600
#define RE_TLB_CLIP_ID 0x000016e0
#define RE_TLB_LINEAR_A 0x00001700
#define RE_TLB_LINEAR_B 0x00001780
/* Pixel Pipeline Registers. */
#define RE_PP_BUFMODE_SRC 0x00002000
#define RE_PP_BUFMODE_DST 0x00002008
#define RE_PP_CLIPMODE 0x00002010
#define RE_PP_DRAWMODE 0x00002018
#define DRAWMODE_STENCIL 0x1 << 0
#define DRAWMODE_DEPTH_MASK 0x1 << 1
#define DRAWMODE_DEPTH_TEST 0x1 << 2
#define DRAWMODE_BYTEMASK 0xf << 3
#define DRAWMODE_BITMASK 0x1 << 7
#define DRAWMODE_DITHER 0x1 << 8
#define DRAWMODE_LOGIC_OP 0x1 << 9
#define DRAWMODE_ALPHA_BLEND 0x1 << 10
#define DRAWMODE_PIXEL_XFER 0x1 << 21
#define RE_PP_WINOFFSET_SRC 0x00002050
#define RE_PP_WINOFFSET_DST 0x00002058
#define RE_PP_PRIMITIVE 0x00002060 /* Drawing primitive. */
#define PRIMITIVE_POINT 0x0 << 24
#define PRIMITIVE_LINE 0x1 << 24
#define PRIMITIVE_TRIANGLE 0x2 << 24
#define PRIMITIVE_RECTANGLE 0x3 << 24
#define PRIMITIVE_LRBT 0x0 << 16
#define PRIMITIVE_RLBT 0x1 << 16
#define PRIMITIVE_LRTB 0x2 << 16
#define PRIMITIVE_RLTB 0x3 << 16
#define RE_PP_VERTEX_X_0 0x00002070 /* (x0,y0) vertex. */
#define RE_PP_VERTEX_X_1 0x00002074 /* (x1,y1) vertex. */
#define RE_PP_VERTEX_X_2 0x00002078 /* (x2,y2) vertex. */
#define RE_PP_PIXEL_XFER_SRC 0x000020a0 /* Pixel transfer source. */
#define RE_PP_PIXEL_XFER_X_STEP 0x000020a8
#define RE_PP_PIXEL_XFER_Y_STEP 0x000020ac
#define RE_PP_STIPPLE_MODE 0x000020c0
#define RE_PP_STIPPLE_PATTERN 0x000020c4
#define RE_PP_SHADE_FG_COLOUR 0x000020d0
#define RE_PP_SHADE_BG_COLOUR 0x000020d8
#define RE_PP_LOGIC_OP 0x000021b0 /* Logic operation. */
#define LOGIC_OP_NONE 0x00
#define LOGIC_OP_XOR 0x0c
#define RE_PP_COLOUR_MASK 0x000021b8 /* Colour buffer plane mask. */
#define COLOUR_MASK_NONE 0xffffffff
#define RE_PP_NULL 0x000021f0
#define RE_PP_FLUSH 0x000021f8
#define BUFMODE_PIXDEPTH_SHIFT 2 /* Pixel colour depth. */
#define BUFMODE_PIXTYPE_SHIFT 4 /* Pixel format. */
#define BUFMODE_BUFDEPTH_SHIFT 8 /* Buffer colour depth. */
#define BUFMODE_BUFTYPE_SHIFT 10 /* Source or destination. */
/* Status Registers. */
#define RE_PP_STATUS 0x00004000
#define RE_PP_STATUS_IDLE 0x10000000
#define RE_PP_STATUS_READY 0x02000000
/*
* Rendering Engine Constants.
*/
#define COLOUR_DEPTH_8 0x0
#define COLOUR_DEPTH_16 0x1
#define COLOUR_DEPTH_32 0x2
#define PIXEL_TYPE_CI 0x0
#define PIXEL_TYPE_RGB 0x1
#define PIXEL_TYPE_RGBA 0x2
#define PIXEL_TYPE_ABGR 0x3
#define BUF_TYPE_TLB_A 0x0
#define BUF_TYPE_TLB_B 0x1
#define BUF_TYPE_TLB_C 0x2
#define BUF_TYPE_LINEAR_A 0x4
#define BUF_TYPE_LINEAR_B 0x5
/*
* Console functions.
*/
int gbe_cnprobe(bus_space_tag_t, bus_addr_t addr);
int gbe_cnattach(bus_space_tag_t, bus_addr_t addr);
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