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Annotation of 43BSDReno/sys/hpdev/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 is only permitted until one year after the first shipment
        !            11:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !            12:  * binary forms are permitted provided that: (1) source distributions retain
        !            13:  * this entire copyright notice and comment, and (2) distributions including
        !            14:  * binaries display the following acknowledgement:  This product includes
        !            15:  * software developed by the University of California, Berkeley and its
        !            16:  * contributors'' in the documentation or other materials provided with the
        !            17:  * distribution and in all advertising materials mentioning features or use
        !            18:  * of this software.  Neither the name of the University nor the names of
        !            19:  * its contributors may be used to endorse or promote products derived from
        !            20:  * this software without specific prior written permission.
        !            21:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            22:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            23:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            24:  *
        !            25:  * from: Utah $Hdr: ite_dv.c 1.5 89/04/11$
        !            26:  *
        !            27:  *     @(#)ite_dv.c    7.1 (Berkeley) 5/8/90
        !            28:  */
        !            29: 
        !            30: #include "ite.h"
        !            31: #if NITE > 0
        !            32: 
        !            33: #include "param.h"
        !            34: #include "conf.h"
        !            35: #include "user.h"
        !            36: #include "proc.h"
        !            37: #include "ioctl.h"
        !            38: #include "tty.h"
        !            39: #include "systm.h"
        !            40: #include "uio.h"
        !            41: 
        !            42: #include "itevar.h"
        !            43: #include "itereg.h"
        !            44: #include "grf_dvreg.h"
        !            45: 
        !            46: #include "machine/cpu.h"
        !            47: 
        !            48: /* XXX */
        !            49: #include "grfioctl.h"
        !            50: #include "grfvar.h"
        !            51: 
        !            52: #define REGBASE                ((struct dvboxfb *)(ip->regbase))
        !            53: #define WINDOWMOVER    dvbox_windowmove
        !            54: 
        !            55: dvbox_init(ip)
        !            56:        struct ite_softc *ip;
        !            57: {
        !            58:        int i;
        !            59:        
        !            60:        /* XXX */
        !            61:        if (ip->regbase == 0) {
        !            62:                struct grfinfo *gi = &grf_softc[ip - ite_softc].g_display;
        !            63:                ip->regbase = IOV(gi->gd_regaddr);
        !            64:                ip->fbbase = IOV(gi->gd_fbaddr);
        !            65:        }
        !            66: 
        !            67:        dv_reset(REGADDR);
        !            68: 
        !            69:        /*
        !            70:         * Turn on frame buffer, turn on overlay planes, set replacement
        !            71:         * rule, enable top overlay plane writes for ite, disable all frame
        !            72:         * buffer planes, set byte per pixel, and display frame buffer 0.
        !            73:         * Lastly, turn on the box.
        !            74:         */
        !            75:        REGBASE->interrupt = 0x04;
        !            76:        REGBASE->drive     = 0x10;              
        !            77:        REGBASE->rep_rule  = RR_COPY << 4 | RR_COPY;
        !            78:        REGBASE->opwen     = 0x01;
        !            79:        REGBASE->fbwen     = 0x0;
        !            80:        REGBASE->fold      = 0x01;
        !            81:        REGBASE->vdrive    = 0x0;
        !            82:        REGBASE->dispen    = 0x01;
        !            83: 
        !            84:        /*
        !            85:         * Video enable top overlay plane.
        !            86:         */
        !            87:        REGBASE->opvenp = 0x01;
        !            88:        REGBASE->opvens = 0x01;
        !            89: 
        !            90:        /*
        !            91:         * Make sure that overlay planes override frame buffer planes.
        !            92:         */
        !            93:        REGBASE->ovly0p  = 0x0;
        !            94:        REGBASE->ovly0s  = 0x0;
        !            95:        REGBASE->ovly1p  = 0x0;
        !            96:        REGBASE->ovly1s  = 0x0;
        !            97:        REGBASE->fv_trig = 0x1;
        !            98:        DELAY(100);
        !            99: 
        !           100:        /*
        !           101:         * Setup the overlay colormaps. Need to set the 0,1 (black/white)
        !           102:         * color for both banks.
        !           103:         */
        !           104: 
        !           105:        for (i = 0; i <= 1; i++) {
        !           106:                REGBASE->cmapbank = i;
        !           107:                REGBASE->rgb[0].red   = 0x00;
        !           108:                REGBASE->rgb[0].green = 0x00;
        !           109:                REGBASE->rgb[0].blue  = 0x00;
        !           110:                REGBASE->rgb[1].red   = 0xFF;
        !           111:                REGBASE->rgb[1].green = 0xFF;
        !           112:                REGBASE->rgb[1].blue  = 0xFF;
        !           113:        }
        !           114:        REGBASE->cmapbank = 0;
        !           115:        
        !           116:        db_waitbusy(REGADDR);
        !           117: 
        !           118:        ite_devinfo(ip);
        !           119:        ite_fontinit(ip);
        !           120: 
        !           121:        /*
        !           122:         * Clear the (visible) framebuffer.
        !           123:         */
        !           124:        dvbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
        !           125:        db_waitbusy(REGADDR);
        !           126: 
        !           127:        /*
        !           128:         * Stash the inverted cursor.
        !           129:         */
        !           130:        dvbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
        !           131:                         ip->cblanky, ip->cblankx, ip->ftheight,
        !           132:                         ip->ftwidth, RR_COPYINVERTED);
        !           133: }
        !           134: 
        !           135: dvbox_deinit(ip)
        !           136:        struct ite_softc *ip;
        !           137: {
        !           138:        dvbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
        !           139:        db_waitbusy(REGADDR);
        !           140: 
        !           141:        ip->flags &= ~ITE_INITED;
        !           142: }
        !           143: 
        !           144: dvbox_putc(ip, c, dy, dx, mode)
        !           145:        register struct ite_softc *ip;
        !           146:         register int dy, dx;
        !           147:        int c, mode;
        !           148: {
        !           149:         register int wrr = ((mode == ATTR_INV) ? RR_COPYINVERTED : RR_COPY);
        !           150:        
        !           151:        dvbox_windowmove(ip, charY(ip, c), charX(ip, c),
        !           152:                         dy * ip->ftheight, dx * ip->ftwidth,
        !           153:                         ip->ftheight, ip->ftwidth, wrr);
        !           154: }
        !           155: 
        !           156: dvbox_cursor(ip, flag)
        !           157:        register struct ite_softc *ip;
        !           158:         register int flag;
        !           159: {
        !           160:        if (flag == DRAW_CURSOR)
        !           161:                draw_cursor(ip)
        !           162:        else if (flag == MOVE_CURSOR) {
        !           163:                erase_cursor(ip)
        !           164:                draw_cursor(ip)
        !           165:        }
        !           166:        else
        !           167:                erase_cursor(ip)
        !           168: }
        !           169: 
        !           170: dvbox_clear(ip, sy, sx, h, w)
        !           171:        struct ite_softc *ip;
        !           172:        register int sy, sx, h, w;
        !           173: {
        !           174:        dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           175:                         sy * ip->ftheight, sx * ip->ftwidth, 
        !           176:                         h  * ip->ftheight, w  * ip->ftwidth,
        !           177:                         RR_CLEAR);
        !           178: }
        !           179: 
        !           180: dvbox_scroll(ip, sy, sx, count, dir)
        !           181:         register struct ite_softc *ip;
        !           182:         register int sy, count;
        !           183:         int dir, sx;
        !           184: {
        !           185:        register int dy;
        !           186:        register int dx = sx;
        !           187:        register int height = 1;
        !           188:        register int width = ip->cols;
        !           189: 
        !           190:        dvbox_cursor(ip, ERASE_CURSOR);
        !           191: 
        !           192:        if (dir == SCROLL_UP) {
        !           193:                dy = sy - count;
        !           194:                height = ip->rows - sy;
        !           195:        }
        !           196:        else if (dir == SCROLL_DOWN) {
        !           197:                dy = sy + count;
        !           198:                height = ip->rows - dy - 1;
        !           199:        }
        !           200:        else if (dir == SCROLL_RIGHT) {
        !           201:                dy = sy;
        !           202:                dx = sx + count;
        !           203:                width = ip->cols - dx;
        !           204:        }
        !           205:        else {
        !           206:                dy = sy;
        !           207:                dx = sx - count;
        !           208:                width = ip->cols - sx;
        !           209:        }               
        !           210: 
        !           211:        dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           212:                         dy * ip->ftheight, dx * ip->ftwidth,
        !           213:                         height * ip->ftheight,
        !           214:                         width  * ip->ftwidth, RR_COPY);
        !           215: }
        !           216: 
        !           217: dvbox_windowmove(ip, sy, sx, dy, dx, h, w, func)
        !           218:        struct ite_softc *ip;
        !           219:        int sy, sx, dy, dx, h, w, func;
        !           220: {
        !           221:        register struct dvboxfb *dp = REGBASE;
        !           222:        if (h == 0 || w == 0)
        !           223:                return;
        !           224:        
        !           225:        db_waitbusy(REGADDR);
        !           226:        dp->rep_rule = func << 4 | func;
        !           227:        dp->source_y = sy;
        !           228:        dp->source_x = sx;
        !           229:        dp->dest_y   = dy;
        !           230:        dp->dest_x   = dx;
        !           231:        dp->wheight  = h;
        !           232:        dp->wwidth   = w;
        !           233:        dp->wmove    = 1;
        !           234: }
        !           235: #endif

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