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/* $OpenBSD: p9000.h,v 1.2 2005/04/02 23:27:25 miod Exp $ */
/*
* Copyright (c) 2003, Miodrag Vallat.
*
* 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 AUTHOR ``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 AUTHOR 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.
*/
/*
* Weitek Power9000 and Power9100 definitions.
*
* Although the datasheet is not available anymore, a good source of
* information is:
* http://thorkildsen.no/faqsys/docs/weitek.txt
* as well as several code examples in XFree86 3.x (vga256/p9x00) and the
* {Net,Open}BSD source trees.
*/
/*
* Frame buffer control registers
*
* Offsets below are relative to the following locations:
* P9000 at 0x00100000, P9100 at 0x000000
*/
/*
* System control registers
*/
/* System configuration register */
#define P9000_SYSTEM_CONFIG 0x00000004
#define SCR_PIXEL_MASK 0x1c000000
#define SCR_PIXEL_8BPP 0x08000000
#define SCR_PIXEL_16BPP 0x0c000000
#define SCR_PIXEL_24BPP 0x1c000000
#define SCR_PIXEL_32BPP 0x14000000
#define SCR_READ_BUFFER_MASK 0x00000400
#define SCR_WRITE_BUFFER_MASK 0x00000200
#define SCR_ID_MASK 0x00000007
/* Interrupt status register */
#define P9000_INTERRUPT 0x00000008
/* Interrupt enable register */
#define P9000_INTERRUPT_ENABLE 0x0000000c
#define IER_MASTER_ENABLE 0x00000080
#define IER_MASTER_INTERRUPT 0x00000040
#define IER_VBLANK_ENABLE 0x00000020
#define IER_VBLANK_INTERRUPT 0x00000010
#define IER_PICK_ENABLE 0x00000008
#define IER_PICK_INTERRUPT 0x00000004
#define IER_IDLE_ENABLE 0x00000002
#define IER_IDLE_INTERRUPT 0x00000001
/* Alternate read bank register (bits 16-22) */
#define P9000_ALTBANK_READ 0x00000010
/* Alternate write bank register (bits 16-22) */
#define P9000_ALTBANK_WRITE 0x00000014
/*
* Video control registers
*/
/* Horizontal counter */
#define P9000_HCR 0x00000104
/* Horizontal total */
#define P9000_HTR 0x00000108
/* Horizontal sync rising edge */
#define P9000_HSRE 0x0000010c
/* Horizontal blank rising edge */
#define P9000_HBRE 0x00000110
/* Horizontal blank falling edge */
#define P9000_HBFE 0x00000114
/* Horizontal counter preload */
#define P9000_HCP 0x00000118
/* Vertical counter */
#define P9000_VCR 0x0000011c
/* Vertical length */
#define P9000_VL 0x00000120
/* Vertical sync rising edge */
#define P9000_VSRE 0x00000124
/* Vertical blank rising edge */
#define P9000_VBRE 0x00000128
/* Vertical blank falling edge */
#define P9000_VBFE 0x0000012c
/* Vertical counter preload */
#define P9000_VCP 0x00000130
/* Screen repaint address */
#define P9000_SRA 0x00000134
/* Screen repaint timing control #1 */
#define P9000_SRTC1 0x00000138
#define SRTC1_VSYNC_INTERNAL 0x00000100
#define SRTC1_HSYNC_INTERNAL 0x00000080
#define SRTC1_VIDEN 0x00000020
#define SRTC1_RESTRICTED 0x00000010
#define SRTC1_BUFFER1 0x00000008
/* QSF counter. Film at 11 */
#define P9000_QSF 0x0000013c
/* Screen repaint timing control #2 */
#define P9000_SRTC2 0x00000140
/*
* VRAM control registers
*/
/* Memory configuration */
#define P9000_MCR 0x00000184
/* Refresh period */
#define P9000_REFRESH_PERIOD 0x00000188
/* Refresh count */
#define P9000_REFRESH_COUNT 0x0000018c
/* RAS low maximum */
#define P9000_RASLOW_MAXIMUM 0x00000190
/* RAS low current */
#define P9000_RASLOW_CURRENT 0x00000194
/* RAMDAC free FIFO (P9100 only, bits 12-15) and power-up configuration */
#define P9000_POWERUP_CONFIG 0x00000198
#define P9100_FREE_FIFO 0x00000198
/*
* RAMDAC registers (P9100 only)
*/
#define P9100_RAMDAC_REGISTER(index) (0x00000200 + ((index) << 2))
/*
* Accelerated features
*
* Offsets below are relative to the following locations:
* P9000 at 0x00180000, P9100 at 0x002000
*/
/*
* Parameter engine
*/
/* Status register */
#define P9000_PE_STATUS 0x00000000
#define STATUS_QUAD_BUSY 0x80000000
#define STATUS_BLIT_BUSY 0x40000000
#define STATUS_PICK_DETECTED 0x00000080
#define STATUS_PIXEL_ERROR 0x00000040
#define STATUS_BLIT_ERROR 0x00000020
#define STATUS_QUAD_ERROR 0x00000010
#define STATUS_QUAD_CONCAVE 0x00000008
#define STATUS_QUAD_OUTSIDE 0x00000004
#define STATUS_QUAD_INSIDE 0x00000002
#define STATUS_QUAD_STRADDLE 0x00000001
/* Engine arguments / operation triggers */
#define P9000_PE_BLIT 0x00000004
#define P9000_PE_QUAD 0x00000008
#define P9000_PE_PIXEL8 0x0000000c
#define P9000_PE_NEXTPIXELS 0x00000014
#define P9000_PE_PIXEL1(index) (0x00000080 + ((index) << 2))
/* Control and conditions registers */
/* Out of range */
#define P9000_PE_OOR 0x00000184
/* Index register (0-3, for meta coordinates) */
#define P9000_PE_INDEX 0x0000018c
/* Window offset (16x16)*/
#define P9000_PE_WINOFFSET 0x00000190
/* Clipping window */
#define P9000_PE_WINMIN 0x00000194
#define P9000_PE_WINMAX 0x00000198
/* X Clip register */
#define P9000_X_CLIPPING 0x000001a0
/* Y Clip register */
#define P9000_Y_CLIPPING 0x000001a4
/* X Edge Less Than register */
#define P9000_X_EDGE_LESS 0x000001a8
/* X Edge Greater Than register */
#define P9000_X_EDGE_GREATER 0x000001ac
/* Y Edge Less Than register */
#define P9000_Y_EDGE_LESS 0x000001b0
/* Y Edge Greater Than register */
#define P9000_Y_EDGE_GREATER 0x000001b4
/*
* Drawing engine
*/
/* Colors - 8 bit for P9000, 32 bit for P9100 */
#define P9000_DE_FG_COLOR 0x00000200
#define P9000_DE_BG_COLOR 0x00000204
#define P9100_DE_COLOR0 0x00000200
#define P9100_DE_COLOR1 0x00000204
#define P9100_DE_COLOR2 0x00000238
#define P9100_DE_COLOR3 0x0000023c
/* How to encode a colors in 8 and 16 bit mode, for the P9100 */
#define P9100_COLOR8(c) ((c) | ((c) << 8) | ((c) << 16) | ((c) << 24))
#define P9100_COLOR16(c) ((c) | ((c) << 16))
/* Plane mask (8 bits on P9000, 32 bits on P9100) */
#define P9000_DE_PLANEMASK 0x00000208
/* Drawing mode */
#define P9000_DE_DRAWMODE 0x0000020c
#define DM_PICK_CONTROL 0x00000008
#define DM_PICK_ENABLE 0x00000004
#define DM_BUFFER_CONTROL 0x00000002
#define DM_BUFFER_ENABLE0 0x00000000
#define DM_BUFFER_ENABLE1 0x00000001
/* Pattern Origin (4 bit x 4 bit offset) */
#define P9000_DE_PATTERN_ORIGIN_X 0x00000210
#define P9000_DE_PATTERN_ORIGIN_Y 0x00000214
/* Raster operation */
#define P9000_DE_RASTER 0x00000218
#define P9100_RASTER_NO_SOLID 0x00002000
#define P9100_RASTER_PATTERN_4COLOR 0x00004000
#define P9100_RASTER_PIXEL1_TRANSPARENT 0x00008000
#define P9000_RASTER_QUAD_OVERSIZE 0x00010000
#define P9000_RASTER_QUAD_PATTERN 0x00020000
/* Raster minterms */
#define P9000_RASTER_SRC 0xcccc
#define P9000_RASTER_DST 0xaaaa
#define P9000_RASTER_PATTERN 0xff00
#define P9000_RASTER_MASK 0xffff
#define P9100_RASTER_SRC 0x00cc
#define P9100_RASTER_DST 0x00aa
#define P9100_RASTER_PATTERN 0x00f0
#define P9100_RASTER_MASK 0x00ff
/* Pixel8 excess storage */
#define P9000_DE_PIXEL8 0x0000021c
/* Clipping window - same as in PE */
#define P9000_DE_WINMIN 0x00000220
#define P9000_DE_WINMAX 0x00000224
/* Quad pattern - up to 4 items on P9000, 8 on P9100 */
#define P9000_DE_PATTERN(index) (0x00000280 + ((index) << 2))
/* User pattern - up to 4 items */
#define P9000_DE_USER(index) (0x00000290 + ((index) << 2))
/* Byte clipping window */
#define P9100_DE_B_WINMIN 0x000002a0
#define P9100_DE_B_WINMAX 0x000002a4
/*
* Coordinates
*/
/* 32 bit X value */
#define P9000_COORD_X 0x00000008
/* 32 bit Y value */
#define P9000_COORD_Y 0x00000010
/* 16 bit X, 16 bit Y values packed */
#define P9000_COORD_XY 0x00000018
/* Absolute (screen) coordinates */
#define P9000_COORD_ABS 0x00000000
/* Relative (in-window) coordinates */
#define P9000_COORD_REL 0x00000020
/* How to pack a x16y16 value - note that they are in fact 12 bit values */
#define P9000_COORDS(x,y) ((((x) & 0x0fff) << 16) | ((y) & 0x0fff))
/* Device coordinates - 4 edges */
#define P9000_DC_COORD(index) (0x00001000 + ((index) * 0x40))
/* Load coordinates */
#define P9000_LC_POINT 0x00001200
#define P9000_LC_LINE 0x00001240
#define P9000_LC_TRI 0x00001280
#define P9000_LC_QUAD 0x000012c0
#define P9000_LC_RECT 0x00001300
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