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Annotation of Net2/arch/hp300/stand/ite_dv.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 University of Utah.
        !             3:  * Copyright (c) 1990 The Regents of the University of California.
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * This code is derived from software contributed to Berkeley by
        !             7:  * the Systems Programming Group of the University of Utah Computer
        !             8:  * Science Department.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  * 3. All advertising materials mentioning features or use of this software
        !            19:  *    must display the following acknowledgement:
        !            20:  *     This product includes software developed by the University of
        !            21:  *     California, Berkeley and its contributors.
        !            22:  * 4. Neither the name of the University nor the names of its contributors
        !            23:  *    may be used to endorse or promote products derived from this software
        !            24:  *    without specific prior written permission.
        !            25:  *
        !            26:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            27:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            28:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            29:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            30:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            31:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            32:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            33:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            34:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            35:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            36:  * SUCH DAMAGE.
        !            37:  *
        !            38:  * from: Utah $Hdr: ite_dv.c 1.1 89/02/28$
        !            39:  *
        !            40:  *     @(#)ite_dv.c    7.2 (Berkeley) 12/16/90
        !            41:  */
        !            42: 
        !            43: #include "samachdep.h"
        !            44: 
        !            45: #ifdef ITECONSOLE
        !            46: 
        !            47: #include "sys/param.h"
        !            48: #include "../dev/itevar.h"
        !            49: #include "../dev/itereg.h"
        !            50: #include "../dev/grfvar.h"
        !            51: #include "../dev/grf_dvreg.h"
        !            52: 
        !            53: #define REGBASE                ((struct dvboxfb *)(ip->regbase))
        !            54: #define WINDOWMOVER    dvbox_windowmove
        !            55: 
        !            56: dvbox_init(ip)
        !            57:        struct ite_softc *ip;
        !            58: {
        !            59:        int i;
        !            60:        
        !            61:        dv_reset(REGADDR);
        !            62:        DELAY(4000);
        !            63: 
        !            64:        /*
        !            65:         * Turn on frame buffer, turn on overlay planes, set replacement
        !            66:         * rule, enable top overlay plane writes for ite, disable all frame
        !            67:         * buffer planes, set byte per pixel, and display frame buffer 0.
        !            68:         * Lastly, turn on the box.
        !            69:         */
        !            70:        REGBASE->interrupt = 0x04;
        !            71:        REGBASE->drive     = 0x10;              
        !            72:        REGBASE->rep_rule  = RR_COPY << 4 | RR_COPY;
        !            73:        REGBASE->opwen     = 0x01;
        !            74:        REGBASE->fbwen     = 0x0;
        !            75:        REGBASE->fold      = 0x01;
        !            76:        REGBASE->vdrive    = 0x0;
        !            77:        REGBASE->dispen    = 0x01;
        !            78: 
        !            79:        /*
        !            80:         * Video enable top overlay plane.
        !            81:         */
        !            82:        REGBASE->opvenp = 0x01;
        !            83:        REGBASE->opvens = 0x01;
        !            84: 
        !            85:        /*
        !            86:         * Make sure that overlay planes override frame buffer planes.
        !            87:         */
        !            88:        REGBASE->ovly0p  = 0x0;
        !            89:        REGBASE->ovly0s  = 0x0;
        !            90:        REGBASE->ovly1p  = 0x0;
        !            91:        REGBASE->ovly1s  = 0x0;
        !            92:        REGBASE->fv_trig = 0x1;
        !            93:        DELAY(400);
        !            94: 
        !            95:        /*
        !            96:         * Setup the overlay colormaps. Need to set the 0,1 (black/white)
        !            97:         * color for both banks.
        !            98:         */
        !            99: 
        !           100:        for (i = 0; i <= 1; i++) {
        !           101:                REGBASE->cmapbank = i;
        !           102:                REGBASE->rgb[0].red   = 0x00;
        !           103:                REGBASE->rgb[0].green = 0x00;
        !           104:                REGBASE->rgb[0].blue  = 0x00;
        !           105:                REGBASE->rgb[1].red   = 0xFF;
        !           106:                REGBASE->rgb[1].green = 0xFF;
        !           107:                REGBASE->rgb[1].blue  = 0xFF;
        !           108:        }
        !           109:        REGBASE->cmapbank = 0;
        !           110:        
        !           111:        db_waitbusy(REGADDR);
        !           112: 
        !           113:        ite_devinfo(ip);
        !           114:        ite_fontinit(ip);
        !           115: 
        !           116:        /*
        !           117:         * Clear the (visible) framebuffer.
        !           118:         */
        !           119:        dvbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
        !           120:        db_waitbusy(REGADDR);
        !           121: 
        !           122:        /*
        !           123:         * Stash the inverted cursor.
        !           124:         */
        !           125:        dvbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
        !           126:                         ip->cblanky, ip->cblankx, ip->ftheight,
        !           127:                         ip->ftwidth, RR_COPYINVERTED);
        !           128:        db_waitbusy(REGADDR);
        !           129: }
        !           130: 
        !           131: dvbox_putc(ip, c, dy, dx, mode)
        !           132:        register struct ite_softc *ip;
        !           133:         register int dy, dx;
        !           134:        int c, mode;
        !           135: {
        !           136:        dvbox_windowmove(ip, charY(ip, c), charX(ip, c),
        !           137:                         dy * ip->ftheight, dx * ip->ftwidth,
        !           138:                         ip->ftheight, ip->ftwidth, RR_COPY);
        !           139: }
        !           140: 
        !           141: dvbox_cursor(ip, flag)
        !           142:        register struct ite_softc *ip;
        !           143:         register int flag;
        !           144: {
        !           145:        if (flag == DRAW_CURSOR)
        !           146:                draw_cursor(ip)
        !           147:        else if (flag == MOVE_CURSOR) {
        !           148:                erase_cursor(ip)
        !           149:                draw_cursor(ip)
        !           150:        }
        !           151:        else
        !           152:                erase_cursor(ip)
        !           153: }
        !           154: 
        !           155: dvbox_clear(ip, sy, sx, h, w)
        !           156:        struct ite_softc *ip;
        !           157:        register int sy, sx, h, w;
        !           158: {
        !           159:        dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           160:                         sy * ip->ftheight, sx * ip->ftwidth, 
        !           161:                         h  * ip->ftheight, w  * ip->ftwidth,
        !           162:                         RR_CLEAR);
        !           163: }
        !           164: 
        !           165: dvbox_scroll(ip, sy, sx, count, dir)
        !           166:         register struct ite_softc *ip;
        !           167:         register int sy, count;
        !           168:         int dir, sx;
        !           169: {
        !           170:        register int dy = sy - count;
        !           171:        register int height = ip->rows - sy;
        !           172: 
        !           173:        dvbox_cursor(ip, ERASE_CURSOR);
        !           174: 
        !           175:        dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           176:                         dy * ip->ftheight, sx * ip->ftwidth,
        !           177:                         height * ip->ftheight,
        !           178:                         ip->cols * ip->ftwidth, RR_COPY);
        !           179: }
        !           180: 
        !           181: dvbox_windowmove(ip, sy, sx, dy, dx, h, w, func)
        !           182:        struct ite_softc *ip;
        !           183:        int sy, sx, dy, dx, h, w, func;
        !           184: {
        !           185:        register struct dvboxfb *dp = REGBASE;
        !           186:        if (h == 0 || w == 0)
        !           187:                return;
        !           188:        
        !           189:        db_waitbusy(REGADDR);
        !           190:        dp->rep_rule = func << 4 | func;
        !           191:        dp->source_y = sy;
        !           192:        dp->source_x = sx;
        !           193:        dp->dest_y   = dy;
        !           194:        dp->dest_x   = dx;
        !           195:        dp->wheight  = h;
        !           196:        dp->wwidth   = w;
        !           197:        dp->wmove    = 1;
        !           198: }
        !           199: 
        !           200: dv_reset(dbp)
        !           201:        register struct dvboxfb *dbp;
        !           202: {
        !           203:        dbp->reset = 0x80;
        !           204:        DELAY(400);
        !           205: 
        !           206:        dbp->interrupt = 0x04;
        !           207:        dbp->en_scan   = 0x01;
        !           208:        dbp->fbwen     = ~0;
        !           209:        dbp->opwen     = ~0;
        !           210:        dbp->fold      = 0x01;
        !           211:        dbp->drive     = 0x01;
        !           212:        dbp->rep_rule  = 0x33;
        !           213:        dbp->alt_rr    = 0x33;
        !           214:        dbp->zrr       = 0x33;
        !           215: 
        !           216:        dbp->fbvenp    = 0xFF;
        !           217:        dbp->dispen    = 0x01;
        !           218:        dbp->fbvens    = 0x0;
        !           219:        dbp->fv_trig   = 0x01;
        !           220:        DELAY(400);
        !           221:        dbp->vdrive    = 0x0;
        !           222:        dbp->zconfig   = 0x0;
        !           223: 
        !           224:        while (dbp->wbusy & 0x01)
        !           225:          DELAY(400);
        !           226: 
        !           227:        /*
        !           228:         * Start of missing ROM code.
        !           229:         */
        !           230:        dbp->cmapbank = 0;
        !           231: 
        !           232:        dbp->red0   = 0;
        !           233:        dbp->red1   = 0;
        !           234:        dbp->green0 = 0;
        !           235:        dbp->green1 = 0;
        !           236:        dbp->blue0  = 0;
        !           237:        dbp->blue1  = 0;
        !           238: 
        !           239:        dbp->panxh   = 0;
        !           240:        dbp->panxl   = 0;
        !           241:        dbp->panyh   = 0;
        !           242:        dbp->panyl   = 0;
        !           243:        dbp->zoom    = 0;
        !           244:        dbp->cdwidth = 0x50;
        !           245:        dbp->chstart = 0x52;
        !           246:        dbp->cvwidth = 0x22;
        !           247:        dbp->pz_trig = 1;
        !           248:        /*
        !           249:         * End of missing ROM code.
        !           250:         */
        !           251: }
        !           252: 
        !           253: #endif

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