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summitreg.h revision 1.2
      1 /*	$NetBSD: summitreg.h,v 1.2 2024/11/26 14:53:33 macallan Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2024 Michael Lorenz
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
     20  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     22  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     24  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
     25  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     26  * THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /* HP Visualize FX 4 and related hardware, aka Summit */
     30 
     31 /*
     32  * register values, found by disassembling the ROM
     33  * some found by Sven Schnelle
     34  * ( see https://patchwork.kernel.org/project/linux-parisc/patch/20211031204952.25678-2-svens@stackframe.org/ )
     35  * some by me
     36  */
     37 
     38 #ifndef SUMMITREG_H
     39 #define SUMMITREG_H
     40 
     41 #define VISFX_STATUS		0x641400	// zero when idle
     42 #define VISFX_FIFO		0x641440
     43 #define VISFX_VRAM_WRITE_MODE	0xa00808
     44 #define VISFX_VRAM_READ_MODE	0xa0080c	// this is a guess
     45 #define VISFX_PIXEL_MASK	0xa0082c
     46 #define VISFX_FG_COLOUR		0xa0083c
     47 #define VISFX_BG_COLOUR		0xa00844
     48 #define VISFX_PLANE_MASK	0xa0084c
     49 #define VISFX_VRAM_WRITE_DATA_INCRX	0xa60000
     50 #define VISFX_VRAM_WRITE_DATA_INCRY	0xa68000
     51 #define VISFX_VRAM_WRITE_DEST		0xac1000
     52 
     53 #define VISFX_WRITE_MODE_PLAIN	0x02000000
     54 #define VISFX_WRITE_MODE_EXPAND	0x050004c0
     55 #define VISFX_WRITE_MODE_FILL	0x050008c0
     56 #define VISFX_WRITE_MODE_TRANSPARENT	0x00000800
     57 
     58 #define VISFX_READ_MODE_COPY	0x02000400
     59 
     60 /* fill */
     61 #define VISFX_START		0xb3c000
     62 #define VISFX_SIZE		0xb3c808	/* start, FX4 uses 0xb3c908 */
     63 
     64 /* copy */
     65 #define VISFX_COPY_SRC		0xb3c010
     66 #define VISFX_COPY_WH		0xb3c008
     67 #define VISFX_COPY_DST		0xb3cc00
     68 /*
     69  * looks like ORing 0x800 to the register address starts a command
     70  * 0x100 and 0x400 seem to have functions as well
     71  */
     72 
     73 #define VISFX_COLOR_MASK	0x800018
     74 #define VISFX_COLOR_INDEX	0x800020
     75 #define VISFX_COLOR_VALUE	0x800024
     76 
     77 #define VISFX_CURSOR_POS	0x400000
     78 #define VISFX_CURSOR_INDEX	0x400004
     79 #define VISFX_CURSOR_DATA	0x400008
     80 #define VISFX_CURSOR_COLOR	0x400010
     81 #define VISFX_CURSOR_ENABLE	0x80000000
     82 
     83 #endif