/* $NetBSD: tcxreg.h,v 1.1.1.1 1998/06/20 04:58:51 eeh Exp $ */ /* * Copyright (c) 1996 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Paul Kranenburg. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * 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 REGENTS 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. */ /* * A TCX is composed of numerous groups of control registers, all with TLAs: * DHC - ??? * TEC - transform engine control? * THC - TEC Hardware Configuration * ROM - a 128Kbyte ROM with who knows what in it. * STIP - ??? * RSTIP - Raw ??? * BLIT - ??? * RBLIT - Raw ??? * ALT - ??? * colormap - see below * frame buffer memory (video RAM) * possible other stuff * */ #define TCX_REG_DFB8 0 #define TCX_REG_DFB24 1 #define TCX_REG_STIP 2 #define TCX_REG_BLIT 3 #define TCX_REG_RDFB32 4 #define TCX_REG_RSTIP 5 #define TCX_REG_RBLIT 6 #define TCX_REG_TEC 7 #define TCX_REG_CMAP 8 #define TCX_REG_THC 9 #define TCX_REG_ROM 10 #define TCX_REG_DHC 11 #define TCX_REG_ALT 12 #define TCX_NREG 13 /* * The layout of the THC. */ struct tcx_thc { u_int thc_config; u_int thc_xxx1[31]; u_int thc_sensebus; u_int thc_xxx2[3]; u_int thc_delay; u_int thc_strapping; u_int thc_xxx3[1]; u_int thc_linecount; u_int thc_xxx4[478]; u_int thc_hcmisc; u_int thc_xxx5[56]; u_int thc_cursoraddr; u_int thc_cursorAdata[32]; u_int thc_cursorBdata[32]; }; /* bits in thc_config ??? */ #define THC_CFG_FBID 0xf0000000 /* id mask */ #define THC_CFG_FBID_SHIFT 28 #define THC_CFG_SENSE 0x07000000 /* sense mask */ #define THC_CFG_SENSE_SHIFT 24 #define THC_CFG_REV 0x00f00000 /* revision mask */ #define THC_CFG_REV_SHIFT 20 #define THC_CFG_RST 0x00008000 /* reset */ /* bits in thc_hcmisc */ #define THC_MISC_OPENFLG 0x80000000 /* open flag (what's that?) */ #define THC_MISC_SWERR_EN 0x20000000 /* enable SW error interrupt */ #define THC_MISC_VSYNC_LEVEL 0x08000000 /* vsync level when disabled */ #define THC_MISC_HSYNC_LEVEL 0x04000000 /* hsync level when disabled */ #define THC_MISC_VSYNC_DISABLE 0x02000000 /* vsync disable */ #define THC_MISC_HSYNC_DISABLE 0x01000000 /* hsync disable */ #define THC_MISC_XXX1 0x00ffe000 /* unused */ #define THC_MISC_RESET 0x00001000 /* ??? */ #define THC_MISC_XXX2 0x00000800 /* unused */ #define THC_MISC_VIDEN 0x00000400 /* video enable */ #define THC_MISC_SYNC 0x00000200 /* not sure what ... */ #define THC_MISC_VSYNC 0x00000100 /* ... these really are */ #define THC_MISC_SYNCEN 0x00000080 /* sync enable */ #define THC_MISC_CURSRES 0x00000040 /* cursor resolution */ #define THC_MISC_INTEN 0x00000020 /* v.retrace intr enable */ #define THC_MISC_INTR 0x00000010 /* intr pending / ack bit */ #define THC_MISC_DACWAIT 0x0000000f /* ??? */ /* * Partial description of TEC. */ struct tcx_tec { u_int tec_config; /* what's in it? */ u_int tec_xxx0[35]; u_int tec_delay; /* */ #define TEC_DELAY_SYNC 0x00000f00 #define TEC_DELAY_WR_F 0x000000c0 #define TEC_DELAY_WR_R 0x00000030 #define TEC_DELAY_SOE_F 0x0000000c #define TEC_DELAY_SOE_S 0x00000003 u_int tec_strapping; /* */ #define TEC_STRAP_FIFO_LIMIT 0x00f00000 #define TEC_STRAP_CACHE_EN 0x00010000 #define TEC_STRAP_ZERO_OFFSET 0x00008000 #define TEC_STRAP_REFRSH_DIS 0x00004000 #define TEC_STRAP_REF_LOAD 0x00001000 #define TEC_STRAP_REFRSH_PERIOD 0x000003ff u_int tec_hcmisc; /* */ u_int tec_linecount; /* */ u_int tec_hss; /* */ u_int tec_hse; /* */ u_int tec_hds; /* */ u_int tec_hsedvs; /* */ u_int tec_hde; /* */ u_int tec_vss; /* */ u_int tec_vse; /* */ u_int tec_vds; /* */ u_int tec_vde; /* */ };