/* $NetBSD: crmfbreg.h,v 1.16 2015/01/20 12:13:04 macallan Exp $ */

/*-
 * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca>
 *               2008 Michael Lorenz <macallan@netbsd.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * SGI-CRM (O2) Framebuffer driver, register definitions
 */

#ifndef CRMFBREG_H
#define CRMFBREG_H

#define CRMFB_CTRLSTAT          0x00000000
#define         CRMFB_CTRLSTAT_CHIPID_MASK      0x0000000f
#define         CRMFB_CTRLSTAT_SENSE            0x00000010 /* monitor sense pin */
#define         CRMFB_CTRLSTAT_GPIO0_SENSE      0x00000040
#define         CRMFB_CTRLSTAT_GPIO0_INPUT      0x00000080
#define         CRMFB_CTRLSTAT_GPIO1_SENSE      0x00000100
#define         CRMFB_CTRLSTAT_GPIO1_INPUT      0x00000200
#define         CRMFB_CTRLSTAT_GPIO2_SENSE      0x00000400
#define         CRMFB_CTRLSTAT_GPIO2_INPUT      0x00000800
#define         CRMFB_CTRLSTAT_GPIO3_SENSE      0x00001000
#define         CRMFB_CTRLSTAT_GPIO3_INPUT      0x00002000
#define         CRMFB_CTRLSTAT_GPIO4_SENSE      0x00004000
#define         CRMFB_CTRLSTAT_GPIO4_INPUT      0x00008000
#define         CRMFB_CTRLSTAT_GPIO5_SENSE      0x00010000
#define         CRMFB_CTRLSTAT_GPIO5_INPUT      0x00020000
#define         CRMFB_CTRLSTAT_GPIO6_SENSE      0x00040000
#define         CRMFB_CTRLSTAT_GPIO6_INPUT      0x00080000
#define         CRMFB_CTRLSTAT_GPIO7_SENSE      0x00100000
#define         CRMFB_CTRLSTAT_GPIO7_INPUT      0x00200000
#define         CRMFB_CTRLSTAT_GPIO8_SENSE      0x00400000
#define         CRMFB_CTRLSTAT_GPIO8_INPUT      0x00800000
#define         CRMFB_CTRLSTAT_GPIO9_SENSE      0x01000000
#define         CRMFB_CTRLSTAT_GPIO9_INPUT      0x02000000
#define         CRMFB_CTRLSTAT_HALF_PHASE       0x04000000 /* for flat panel */
#define         CRMFB_CTRLSTAT_CSYNC_ALOW       0x08000000 /* csync active low */
#define         CRMFB_CTRLSTAT_EXTERNAL_PCLK    0x00000000
#define         CRMFB_CTRLSTAT_DIFF_PCLK        0x10000000 /* differential pclock */
#define         CRMFB_CTRLSTAT_INTERNAL_PCLK    0x30000000

#define CRMFB_DOTCLOCK          0x00000004
#define         CRMFB_DOTCLOCK_M_MASK           0x000000ff
#define         CRMFB_DOTCLOCK_N_MASK           0x00003f00
#define         CRMFB_DOTCLOCK_P_MASK           0x0000c000
#define         CRMFB_DOTCLOCK_CLKRUN_SHIFT     20
#define         CRMFB_DOTCLOCK_BYPASS           0x00100000 /* turn the clock off */
#define         CRMFB_DOTCLOCK_OUT_OF_RANGE     0x00400000
#define         CRMFB_DOTCLOCK_OUT_OF_LOCK      0x00800000
#define         CRMFB_DOTCLOCK_TDWNI            0x01000000 /* ? */
#define         CRMFB_DOTCLOCK_TUPI             0x02000000 /* ? */

#define CRMFB_I2C_VGA           0x00000008
#define         CRMFB_I2C_SDA                   0x00000001 /* these bits are */
#define         CRMFB_I2C_SCL                   0x00000002 /* low active */

#define CRMFB_SYSCLK            0x0000000c

#define CRMFB_I2C_FP            0x00000010 /* same bits as CRMFB_I2C_VGA */

#define CRMFB_DEVICE_ID         0x00000014
#define         CRMFB_DEVICE_ID_DEF             0x00000666 /* this chip is EVIL */


#define CRMFB_VT_XY             0x00010000 /* pixel / line counters */
#define         CRMFB_VT_XY_X_MASK              0x00000fff
#define         CRMFB_VT_XY_Y_MASK              0x00fff000
#define         CRMFB_VT_XY_FREEZE_SHIFT        31
#define CRMFB_VT_XYMAX          0x00010004 /* same masks as CRMFB_VT_XY, counters in
                                            * CRMFB_VT_XY reset when reaching max */
#define CRMFB_VT_VSYNC          0x00010008
#define         CRMFB_VT_VSYNC_OFF_MASK         0x00000fff
#define         CRMFB_VT_VSYNC_ON_MASK          0x00fff000
#define CRMFB_VT_HSYNC          0x0001000c
#define         CRMFB_VT_HSYNC_OFF_MASK         0x00000fff
#define         CRMFB_VT_HSYNC_ON_MASK          0x00fff000
#define CRMFB_VT_VBLANK         0x00010010
#define         CRMFB_VT_VBLANK_OFF_MASK        0x00000fff
#define         CRMFB_VT_VBLANK_ON_MASK         0x00fff000
#define CRMFB_VT_HBLANK         0x00010014
#define         CRMFB_VT_HBLANK_OFF_MASK        0x00000fff
#define         CRMFB_VT_HBLANK_ON_MASK         0x00fff000

#define CRMFB_VT_FLAGS          0x00010018
#define         CRMFB_VT_FLAGS_VDRV_INVERT      0x00000001
#define         CRMFB_VT_FLAGS_VDRV_LOW         0x00000002
#define         CRMFB_VT_FLAGS_HDRV_INVERT      0x00000004
#define         CRMFB_VT_FLAGS_HDRV_LOW         0x00000008 /* put monitor to sleep */
#define         CRMFB_VT_FLAGS_SYNC_HIGH        0x00000010
#define         CRMFB_VT_FLAGS_SYNC_LOW         0x00000020
#define         CRMFB_VT_FLAGS_SYNC_LOW_MSB     5
#define         CRMFB_VT_FLAGS_SYNC_LOW_LSB     5
#define         CRMFB_VT_FLAGS_F2RF_HIGH        0x00000040 /* sync left/right ? */

#define CRMFB_VT_FRAMELOCK      0x0001001c
#define         CRMFB_VT_FRAMELOCK_F2RF_MASK    0x00000fff /* f2rf toggles when y
                                                            * reaches this */
#define         CRMFB_VT_FRAMELOCK_LOCK_MASK    0x00fff000

/* scanline interrupts! */
#define CRMFB_VT_INTR01         0x00010020
#define         CRMFB_INTR_1_MASK               0x00000fff /* intr1 when y == this */
#define         CRMFB_INTR_0_MASK               0x00fff000 /* intr0 when y == this */
#define CRMFB_VT_INTR23         0x00010024
#define         CRMFB_INTR_3_MASK               0x00000fff /* intr3 when y == this */
#define         CRMFB_INTR_2_MASK               0x00fff000 /* intr2 when y == this */

#define CRMFB_VT_HPIX_EN                0x00010034
#define         CRMFB_HPIXEN_OFF_MASK           0x00000fff
#define         CRMFB_HPIXEN_ON_MASK            0x00fff000
#define CRMFB_VT_VPIX_EN        0x00010038
#define         CRMFB_VT_VPIX_EN_OFF_SHIFT      0
#define         CRMFB_VPIXEN_OFF_MASK           0x00000fff
#define         CRMFB_VPIXEN_ON_MASK            0x00fff000
#define CRMFB_VT_HCMAP          0x0001003c
#define         CRMFB_HCMAP_OFF_MASK            0x00000fff
#define         CRMFB_HCMAP_ON_MASK             0x00fff000
#define         CRMFB_VT_HCMAP_ON_SHIFT         12
#define CRMFB_VT_VCMAP          0x00010040
#define         CRMFB_VCMAP_OFF_MASK            0x00000fff
#define         CRMFB_VCMAP_ON_MASK             0x00fff000
#define         CRMFB_VT_VCMAP_ON_SHIFT         12

#define CRMFB_VT_DID_STARTXY    0x00010044
#define         CRMFB_VT_DID_START_X_MASK       0x00000fff
#define         CRMFB_VT_DID_START_Y_MASK       0x00fff000
#define CRMFB_VT_CRS_STARTXY    0x00010048
#define         CRMFB_VT_CRS_START_X_MASK       0x00000fff
#define         CRMFB_VT_CRS_START_Y_MASK       0x00fff000
#define CRMFB_VT_VC_STARTXY     0x0001004c
#define         CRMFB_VT_VC_START_X_MASK        0x00000fff
#define         CRMFB_VT_VC_START_Y_MASK        0x00fff000

#define CRMFB_OVR_WIDTH_TILE    0x00020000
#define         CRMFB_OVR_WIDTH_TILE_RHS_MASK   0x0000001f /* width of rightmost tile
                                                            * in 32 byte units */
#define         CRMFB_OVR_WIDTH_TILES_MASK      0x00001fe0 /* width in whole tiles */
#define CRMFB_OVR_TILE_PTR      0x00020004
#define         CRMFB_OVR_TILE_LIST_MASK        0xfffff000
#define         CRMFB_OVR_DMA_ENABLE            0x00000001
#define CRMFB_OVR_CONTROL       0x00020008 /* same bits as CRMFB_OVR_TILE_PTR, copied 
                                            * from here when blanking */
#define         CRMFB_OVR_CONTROL_DMAEN_SHIFT   0

#define CRMFB_FRM_TILESIZE      0x00030000
#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
#define                 CRMFB_FRM_TILESIZE_DEPTH_32     2
#define         CRMFB_FRM_TILESIZE_FIFOR_SHIFT  15
#define CRMFB_FRM_PIXSIZE       0x00030004
#define         CRMFB_FRM_PIXSIZE_HEIGHT_SHIFT  16
#define CRMFB_TILE_PTR          0x00020008
#define         CRMFB_TILE_LIST_MASK            0xfffff000
#define         CRMFB_DMA_ENABLE                0x00000001
#define CRMFB_FRM_CONTROL       0x0003000c
#define         CRMFB_FRM_CONTROL_DMAEN_SHIFT   0
#define         CRMFB_FRM_CONTROL_LINEAR_SHIFT  1
#define         CRMFB_FRM_CONTROL_TILEPTR_SHIFT 9

#define CRMFB_DID_PTR           0x00040000
#define         CRMFB_DID_BASE_MASK             0x0000ffff
#define         CRMFB_DID_DMA_ENABLE            0x00010000
#define CRMFB_DID_CONTROL       0x00040004
#define         CRMFB_DID_CONTROL_DMAEN_SHIFT   0

#define CRMFB_WID               0x00048000      /* 32 WIDs */
#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
#define                 CRMFB_MODE_BUF_BOTH     3
#define         CRMFB_MODE_CMAP_SELECT_SHIFT    5 /* upper 5 bit */
#define         CRMFB_MODE_GAMMA_ENABLE_SHIFT   10
#define         CRMFB_MODE_FP_ENABLE_SHIFT      11 /* two bits */

#define CRMFB_CMAP              0x00050000      /* 32*256 entries */
#define CRMFB_CMAP_OVL          0x00051400
#define CRMFB_CMAP_FIFO         0x00058000
#define CRMFB_GMAP              0x00060000      /* gamma map */
#define CRMFB_CURSOR_POS        0x00070000
/*
 * upper 16 bit are Y, lower 16 bit are X - both signed so there's no need for
 * a hotspot register
 */
#define CRMFB_CURSOR_CONTROL    0x00070004
        #define CRMFB_CURSOR_ON         0x00000001
        #define CRMFB_CURSOR_CROSSHAIR  0x00000002
#define CRMFB_CURSOR_CMAP0      0x00070008
#define CRMFB_CURSOR_CMAP1      0x0007000c
#define CRMFB_CURSOR_CMAP2      0x00070010
#define CRMFB_CURSOR_BITMAP     0x00078000
/* two bit deep cursor image, zero is transparent */

/* rendering engine registers */
/* these TLBs define 16x16 tiles, 64kB each, upper 16 bit only */
#define CRIME_RE_TLB_A          0x1000
#define CRIME_RE_TLB_B          0x1200
#define CRIME_RE_TLB_C          0x1400
#define CRIME_RE_TEX            0x1600
#define CRIME_RE_CLIP_IDS       0x16e0
/* 32bit entries, 4kB page address >> 12 | 0x80000000 */
#define CRIME_RE_LINEAR_A       0x1700
#define CRIME_RE_LINEAR_B       0x1780

/* memory transfer engine from 0x3000*/
#define CRIME_MTE_MODE          0x3000
#define CRIME_MTE_BYTEMASK      0x3008
#define CRIME_MTE_STIPPLEMASK   0x3010
#define CRIME_MTE_BG            0x3018
#define CRIME_MTE_SRC0          0x3020  /* start */
#define CRIME_MTE_SRC1          0x3028  /* end */
#define CRIME_MTE_DST0          0x3030  /* start */
#define CRIME_MTE_DST1          0x3038  /* end */
#define CRIME_MTE_SRC_Y_STEP    0x3040
#define CRIME_MTE_DST_Y_STEP    0x3048
#define CRIME_MTE_NULL          0x3070
#define CRIME_MTE_FLUSH         0x3078

/* CRIME_MTE_MODE */
#define MTE_MODE_DST_ECC        0x00000001      /* enable ECC in DST */
#define MTE_MODE_SRC_ECC        0x00000002      /* enable ECC in SRC */
#define MTE_MODE_DST_BUF_MASK   0x0000001c
        #define MTE_TLB_A       0
        #define MTE_TLB_B       1
        #define MTE_TLB_C       2
        #define MTE_TLB_TEX     3
        #define MTE_TLB_LIN_A   4
        #define MTE_TLB_LIN_B   5
        #define MTE_TLB_CLIP    6
        #define MTE_DST_TLB_SHIFT 2
#define MTE_MODE_SRC_BUF_MASK   0x000000e0
        #define MTE_SRC_TLB_SHIFT 5
#define MTE_MODE_DEPTH_MASK     0x00000300
        #define MTE_DEPTH_8     0
        #define MTE_DEPTH_16    1
        #define MTE_DEPTH_32    2
        #define MTE_DEPTH_SHIFT 8
#define MTE_MODE_STIPPLE        0x00000400
#define MTE_MODE_COPY           0x00000800      /* 1 - copy, 0 - clear dst */

/* drawing engine from 0x2000 */
#define CRIME_DE_MODE_SRC       0x2000
#define CRIME_DE_MODE_DST       0x2008
#define CRIME_DE_CLIPMODE       0x2010
#define CRIME_DE_DRAWMODE       0x2018
#define CRIME_DE_SCRMASK0       0x2020
#define CRIME_DE_SCRMASK1       0x2028
#define CRIME_DE_SCRMASK2       0x2030
#define CRIME_DE_SCRMASK3       0x2038
#define CRIME_DE_SCRMASK4       0x2040
#define CRIME_DE_SCISSOR        0x2048
#define CRIME_DE_WINOFFSET_SRC  0x2050  /* x in upper, y in lower 16 bit */
#define CRIME_DE_WINOFFSET_DST  0x2058
#define CRIME_DE_PRIMITIVE      0x2060
#define CRIME_DE_X_VERTEX_0     0x2070
#define CRIME_DE_X_VERTEX_1     0x2074
#define CRIME_DE_X_VERTEX_2     0x2078
#define CRIME_DE_GL_VERTEX_0_X  0x2080
#define CRIME_DE_GL_VERTEX_0_Y  0x2084
#define CRIME_DE_GL_VERTEX_1_X  0x2088
#define CRIME_DE_GL_VERTEX_1_Y  0x208c
#define CRIME_DE_GL_VERTEX_2_X  0x2090
#define CRIME_DE_GL_VERTEX_2_Y  0x2094
#define CRIME_DE_XFER_ADDR_SRC  0x20a0
#define CRIME_DE_XFER_STRD_SRC  0x20a4
#define CRIME_DE_XFER_STEP_X    0x20a8
#define CRIME_DE_XFER_STEP_Y    0x20ac
#define CRIME_DE_XFER_ADDR_DST  0x20b0
#define CRIME_DE_XFER_STRD_DST  0x20b4
#define CRIME_DE_STIPPLE_MODE   0x20c0
#define CRIME_DE_STIPPLE_PAT    0x20c4
#define CRIME_DE_FG             0x20d0
#define CRIME_DE_BG             0x20d8
#define CRIME_DE_ALPHA_COLOR    0x21a0  /* constant colour for alpha */
#define CRIME_DE_ALPHA_FUNC     0x21a8  /* blend function */
#define CRIME_DE_ROP            0x21b0
#define CRIME_DE_PLANEMASK      0x21b8

#define CRIME_DE_NULL           0x21f0
#define CRIME_DE_FLUSH          0x21f8

#define CRIME_DE_START          0x0800  /* OR this to a register address in
                                         * order to start a command */

/* CRIME_DE_MODE_* */
#define DE_MODE_TLB_A           0x00000000
#define DE_MODE_TLB_B           0x00000400
#define DE_MODE_TLB_C           0x00000800
#define DE_MODE_LIN_A           0x00001000
#define DE_MODE_LIN_B           0x00001400
#define DE_MODE_BUFDEPTH_8      0x00000000
#define DE_MODE_BUFDEPTH_16     0x00000100
#define DE_MODE_BUFDEPTH_32     0x00000200
#define DE_MODE_TYPE_CI         0x00000000
#define DE_MODE_TYPE_RGB        0x00000010
#define DE_MODE_TYPE_RGBA       0x00000020
#define DE_MODE_TYPE_ABGR       0x00000030
#define DE_MODE_TYPE_YCRCB      0x000000f0
#define DE_MODE_TYPE_MASK       0x000000f0
#define DE_MODE_PIXDEPTH_8      0x00000000
#define DE_MODE_PIXDEPTH_16     0x00000004
#define DE_MODE_PIXDEPTH_32     0x00000008
#define DE_MODE_DOUBLE_PIX      0x00000002
#define DE_MODE_DOUBLE_SELECT   0x00000001

/* clip mode */
#define DE_CLIPMODE_ENABLE      0x00000800
/* enable testing against mask register n */
#define DE_CLIPMODE_MASK0_EN    0x00000200
#define DE_CLIPMODE_MASK1_EN    0x00000100
#define DE_CLIPMODE_MASK2_EN    0x00000080
#define DE_CLIPMODE_MASK3_EN    0x00000040
#define DE_CLIPMODE_MASK4_EN    0x00000020
/* let pixels pass if inside mask n, otherwise outside */
#define DE_CLIPMODE_MASK0_IN    0x00000010
#define DE_CLIPMODE_MASK1_IN    0x00000008
#define DE_CLIPMODE_MASK2_IN    0x00000004
#define DE_CLIPMODE_MASK3_IN    0x00000002
#define DE_CLIPMODE_MASK4_IN    0x00000001

/* draw mode */
#define DE_DRAWMODE_NO_CONF     0x00800000      /* disable coherency testing */
#define DE_DRAWMODE_X11         0x00000000
#define DE_DRAWMODE_GL          0x00400000
#define DE_DRAWMODE_XFER_EN     0x00200000
#define DE_DRAWMODE_SCISSOR_EN  0x00100000
#define DE_DRAWMODE_LINE_STIP   0x00080000
#define DE_DRAWMODE_POLY_STIP   0x00040000
#define DE_DRAWMODE_OPAQUE_STIP 0x00020000
#define DE_DRAWMODE_SHADE       0x00010000      /* smooth shading enable */
#define DE_DRAWMODE_TEXTURE     0x00008000
#define DE_DRAWMODE_FOG         0x00004000
#define DE_DRAWMODE_COVERAGE    0x00002000
#define DE_DRAWMODE_LINE_AA     0x00001000
#define DE_DRAWMODE_ALPHA_TEST  0x00000800
#define DE_DRAWMODE_ALPHA_BLEND 0x00000400
#define DE_DRAWMODE_ROP         0x00000200
#define DE_DRAWMODE_DITHER      0x00000100
#define DE_DRAWMODE_PLANEMASK   0x00000080
#define DE_DRAWMODE_BYTEMASK    0x00000078
#define DE_DRAWMODE_DEPTH_TEST  0x00000004
#define DE_DRAWMODE_DEPTH_MASK  0x00000002
#define DE_DRAWMODE_STENCIL     0x00000001

/* primitive */
#define DE_PRIM_POINT           0x00000000
#define DE_PRIM_LINE            0x01000000
#define DE_PRIM_TRIANGLE        0x02000000
#define DE_PRIM_RECTANGLE       0x03000000
#define DE_PRIM_LINE_SKIP_END   0x00040000
#define DE_PRIM_LR              0x00000000      /* left to right */
#define DE_PRIM_RL              0x00010000      /* right to left */
#define DE_PRIM_BT              0x00000000      /* bottom to top */
#define DE_PRIM_TB              0x00020000      /* top to bottom */
#define DE_PRIM_LINE_WIDTH_MASK 0x0000ffff      /* in half pixels */

/* CRIME_DE_STIPPLE_MODE */
#define DE_STIP_MAXREP_SHIFT    0       /* max. repeats 8 bit */
#define DE_STIP_REPCNT_SHIFT    8       /* repeat count, 8 bit */
#define DE_STIP_MAXIDX_SHIFT    16      /* max. index, 5 bit */
#define DE_STIP_STRTIDX_SHIFT   24      /* start index, 5 bit */

/* alpha function register */
#define DE_ALPHA_ADD            0x00000000
#define DE_ALPHA_MIN            0x00000100
#define DE_ALPHA_MAX            0x00000200
#define DE_ALPHA_SUB            0x00000300
#define DE_ALPHA_REV_SUB        0x00000400

#define DE_ALPHA_OP_ZERO                0
#define DE_ALPHA_OP_ONE                 1
#define DE_ALPHA_OP_DST_COLOR           2
#define DE_ALPHA_OP_1_MINUS_DST_COLOR   3
#define DE_ALPHA_OP_SRC_ALPHA           4
#define DE_ALPHA_OP_1_MINUS_SRC_ALPHA   5
#define DE_ALPHA_OP_DST_ALPHA           6
#define DE_ALPHA_OP_1_MINUS_DST_APLHA   7
#define DE_ALPHA_OP_CONSTANT_COLOR      8
#define DE_ALPHA_OP_1_MINUS_CONST_COLOR 9
#define DE_ALPHA_OP_CONSTANT_ALPHA      10
#define DE_ALPHA_OP_1_MINUS_CONST_ALPHA 11
#define DE_ALPHA_OP_SRC_ALPHA_SATURATE  12

#define DE_ALPHA_OP_SRC_SHIFT 4
#define DE_ALPHA_OP_DST_SHIFT 0

/* status register */
#define CRIME_DE_STATUS         0x4000
#define CRIME_DE_IDLE           0x10000000
#define CRIME_DE_SETUP_IDLE     0x08000000
#define CRIME_DE_PIXPIPE_IDLE   0x04000000
#define CRIME_DE_MTE_IDLE       0x02000000
#define CRIME_DE_LEVEL_MASK     0x01fc0000
#define CRIME_DE_RD_PTR_MASK    0x0003f000
#define CRIME_DE_WR_PTR_MASK    0x00000fc0
#define CRIME_DE_BUF_START      0x0000003f

#define CRIME_DE_LEVEL_SHIFT    18
/*
 * XXX
 * The manual claims that the pipeline is 128 deep, in reality it seems to be
 * 64, at least on my O2. Might be 128 deep on O2+
 */ 
#define CRIME_DE_LEVEL_MAX      0x3f
#define CRIME_PIPE_LEVEL(x)     ((x & CRIME_DE_LEVEL_MASK) >>  \
                                  CRIME_DE_LEVEL_SHIFT)

#endif /* CRMFBREG_H */