1 /* $NetBSD: grf_ulreg.h,v 1.2 1995/10/07 19:54:59 chopps Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Ignatios Souvatzis 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Lutz Vieweg. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 /* 33 * Registers etc. for the University of Lowell graphics board. 34 */ 35 36 struct gspregs { 37 /* 38 * alas, they didn't invert the A1 bit, so be have to write the 39 * address pointer in two parts 40 */ 41 __volatile u_short hstadrl; 42 __volatile u_short hstadrh; 43 __volatile u_short data; 44 __volatile u_short ctrl; 45 }; 46 47 /* Bits in ctrl */ 48 #define HLT 0x8000 49 #define CF 0x4000 50 #define LBL 0x2000 51 #define INCR 0x1000 52 #define INCW 0x0800 53 #define NMIM 0x0200 54 #define NMI 0x0100 55 56 #define INTOUT 0x0080 57 #define MSGOUT 0x0070 58 #define INTIN 0x0008 59 #define MSGIN 0x0007 60 61 /* address macros */ 62 63 #define GSPSETHADRS(gsp,adrs) (gsp)->hstadrh = (adrs)>>16; (gsp)->hstadrl = (adrs) 64 #define GSPGETHADRS(gsp) ((gsp)->hstadrh << 16 | (gsp)->hstadrl) 65 66 /* Standard addresses in GSP memory */ 67 68 #define PUT_PTR_ADRS 0xFFA20000 /* put pointer in ring buffer */ 69 #define PUT_HI_PTR_ADRS 0xFFA20010 /* put pointer high word */ 70 #define GET_PTR_ADRS 0xFFA20020 /* get pointer (low word) */ 71 #define GSP_MODE_ADRS 0xFFA20040 /* GSP mode word */ 72 73 /* Bits in GSP mode word */ 74 #define GMODE_HOLD 1 /* hold screen */ 75 #define GMODE_FLUSH 2 /* flush GSP input queue */ 76 #define GMODE_ALTSCRN 4 /* use alternate screen */ 77 #define GMODE_DISPCTRL 8 /* display control chars */ 78 79 /* command words */ 80 #define GCMD_CMD_MSK 0x000F 81 #define GCMD_PAR_MSK 0xFFF0 82 83 #define GCMD_NOP 0 84 #define GCMD_CHAR 1 /* char, fg, bg, x, y */ 85 #define GCMD_FILL 2 /* fg, x, y, w, h, ppop */ 86 #define GCMD_PIXBLT 3 /* x, y, w, h, dx, dy */ 87 #define GCMD_FNTMIR 4 /* */ 88 #define GCMD_CMAP 5 /* overlay==1, index, red, green, blue */ 89 #define GCMD_MCHG 6 /* width, height, baseh, basel, pitch, depth */ 90 91 struct grf_ul_softc { 92 struct grf_softc gus_sc; 93 u_int8_t gus_imcmap[768]; 94 u_int8_t gus_ovcmap[12]; 95 u_int8_t gus_ovslct; 96 /* realconfig stuff assumes this is last, else it would get copied: */ 97 struct isr gus_isr; 98 }; 99 100 #ifdef _KERNEL 101 void gsp_write(struct gspregs *gsp, u_int16_t *data, size_t size); 102 int grful_cnprobe(void); 103 void grful_iteinit(struct grf_softc *gp); 104 #endif 105 106