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Annotation of Net2/arch/hp300/stand/ite_gb.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 $Hdr: ite_gb.c 1.8 89/02/23$
        !            39:  *
        !            40:  *     @(#)ite_gb.c    7.2 (Berkeley) 12/16/90
        !            41:  */
        !            42: 
        !            43: #include "samachdep.h"
        !            44: 
        !            45: #ifdef ITECONSOLE
        !            46: 
        !            47: #include "sys/param.h"
        !            48: 
        !            49: #include "../dev/itevar.h"
        !            50: #include "../dev/itereg.h"
        !            51: #include "../dev/grfvar.h"
        !            52: #include "../dev/grf_gbreg.h"
        !            53: 
        !            54: #define REGBASE        ((struct gboxfb *)(ip->regbase))
        !            55: #define WINDOWMOVER    gatorbox_windowmove
        !            56: 
        !            57: gatorbox_init(ip)
        !            58:        register struct ite_softc *ip;
        !            59: {
        !            60:        REGBASE->write_protect = 0x0;
        !            61:        REGBASE->interrupt = 0x4;
        !            62:        REGBASE->rep_rule = RR_COPY;
        !            63:        REGBASE->blink1 = 0xff;
        !            64:        REGBASE->blink2 = 0xff;
        !            65:        REGBASE->sec_interrupt = 0x01;
        !            66: 
        !            67:        /*
        !            68:         * Set up the color map entries. We use three entries in the
        !            69:         * color map. The first, is for black, the second is for
        !            70:         * white, and the very last entry is for the inverted cursor.
        !            71:         */
        !            72:        REGBASE->creg_select = 0x00;
        !            73:        REGBASE->cmap_red    = 0x00;
        !            74:        REGBASE->cmap_grn    = 0x00;
        !            75:        REGBASE->cmap_blu    = 0x00;
        !            76:        REGBASE->cmap_write  = 0x00;
        !            77:        gbcm_waitbusy(REGADDR);
        !            78:        
        !            79:        REGBASE->creg_select = 0x01;
        !            80:        REGBASE->cmap_red    = 0xFF;
        !            81:        REGBASE->cmap_grn    = 0xFF;
        !            82:        REGBASE->cmap_blu    = 0xFF;
        !            83:        REGBASE->cmap_write  = 0x01;
        !            84:        gbcm_waitbusy(REGADDR);
        !            85: 
        !            86:        REGBASE->creg_select = 0xFF;
        !            87:        REGBASE->cmap_red    = 0xFF;
        !            88:        REGBASE->cmap_grn    = 0xFF;
        !            89:        REGBASE->cmap_blu    = 0xFF;
        !            90:        REGBASE->cmap_write  = 0x01;
        !            91:        gbcm_waitbusy(REGADDR);
        !            92: 
        !            93:        ite_devinfo(ip);
        !            94:        ite_fontinit(ip);
        !            95: 
        !            96:        /*
        !            97:         * Clear the display. This used to be before the font unpacking
        !            98:         * but it crashes. Figure it out later.
        !            99:         */
        !           100:        gatorbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
        !           101:        tile_mover_waitbusy(REGADDR);
        !           102: 
        !           103:        /*
        !           104:         * Stash the inverted cursor.
        !           105:         */
        !           106:        gatorbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
        !           107:                            ip->cblanky, ip->cblankx, ip->ftheight,
        !           108:                            ip->ftwidth, RR_COPYINVERTED);
        !           109: }
        !           110: 
        !           111: gatorbox_putc(ip, c, dy, dx, mode)
        !           112:        register struct ite_softc *ip;
        !           113:         register int dy, dx;
        !           114:        int c, mode;
        !           115: {
        !           116:        gatorbox_windowmove(ip, charY(ip, c), charX(ip, c),
        !           117:                            dy * ip->ftheight, dx * ip->ftwidth,
        !           118:                            ip->ftheight, ip->ftwidth, RR_COPY);
        !           119: }
        !           120: 
        !           121: gatorbox_cursor(ip, flag)
        !           122:        register struct ite_softc *ip;
        !           123:         register int flag;
        !           124: {
        !           125:        if (flag == DRAW_CURSOR)
        !           126:                draw_cursor(ip)
        !           127:        else if (flag == MOVE_CURSOR) {
        !           128:                erase_cursor(ip)
        !           129:                draw_cursor(ip)
        !           130:        }
        !           131:        else
        !           132:                erase_cursor(ip)
        !           133: }
        !           134: 
        !           135: gatorbox_clear(ip, sy, sx, h, w)
        !           136:        struct ite_softc *ip;
        !           137:        register int sy, sx, h, w;
        !           138: {
        !           139:        gatorbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           140:                            sy * ip->ftheight, sx * ip->ftwidth, 
        !           141:                            h  * ip->ftheight, w  * ip->ftwidth,
        !           142:                            RR_CLEAR);
        !           143: }
        !           144: 
        !           145: #define        gatorbox_blockmove(ip, sy, sx, dy, dx, h, w) \
        !           146:        gatorbox_windowmove((ip), \
        !           147:                            (sy) * ip->ftheight, \
        !           148:                            (sx) * ip->ftwidth, \
        !           149:                            (dy) * ip->ftheight, \
        !           150:                            (dx) * ip->ftwidth, \
        !           151:                            (h)  * ip->ftheight, \
        !           152:                            (w)  * ip->ftwidth, \
        !           153:                            RR_COPY)
        !           154: 
        !           155: gatorbox_scroll(ip, sy, sx, count, dir)
        !           156:         register struct ite_softc *ip;
        !           157:         register int sy;
        !           158:         int dir, sx, count;
        !           159: {
        !           160:        register int height, dy, i;
        !           161:        
        !           162:        tile_mover_waitbusy(REGADDR);
        !           163:        REGBASE->write_protect = 0x0;
        !           164: 
        !           165:        gatorbox_cursor(ip, ERASE_CURSOR);
        !           166: 
        !           167:        dy = sy - count;
        !           168:        height = ip->rows - sy;
        !           169:        for (i = 0; i < height; i++)
        !           170:                gatorbox_blockmove(ip, sy + i, sx, dy + i, 0, 1, ip->cols);
        !           171: }
        !           172: 
        !           173: gatorbox_windowmove(ip, sy, sx, dy, dx, h, w, mask)
        !           174:      register struct ite_softc *ip;
        !           175:      int sy, sx, dy, dx, mask;
        !           176:      register int h, w;
        !           177: {
        !           178:        register int src, dest;
        !           179: 
        !           180:        src  = (sy * 1024) + sx;        /* upper left corner in pixels */
        !           181:        dest = (dy * 1024) + dx;
        !           182: 
        !           183:        tile_mover_waitbusy(REGADDR);
        !           184:        REGBASE->width = -(w / 4);
        !           185:        REGBASE->height = -(h / 4);
        !           186:        if (src < dest)
        !           187:                REGBASE->rep_rule = MOVE_DOWN_RIGHT|mask;
        !           188:        else {
        !           189:                REGBASE->rep_rule = MOVE_UP_LEFT|mask;
        !           190:                /*
        !           191:                 * Adjust to top of lower right tile of the block.
        !           192:                 */
        !           193:                src = src + ((h - 4) * 1024) + (w - 4);
        !           194:                dest= dest + ((h - 4) * 1024) + (w - 4);
        !           195:        }
        !           196:        FBBASE[dest] = FBBASE[src];
        !           197: }
        !           198: #endif

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