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Annotation of 43BSDReno/sys/hpdev/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 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 $Hdr: ite_gb.c 1.17 89/04/11$
        !            26:  *
        !            27:  *     @(#)ite_gb.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_gbreg.h"
        !            45: 
        !            46: #include "machine/cpu.h"
        !            47: 
        !            48: /* XXX */
        !            49: #include "grfioctl.h"
        !            50: #include "grfvar.h"
        !            51: 
        !            52: #define REGBASE        ((struct gboxfb *)(ip->regbase))
        !            53: #define WINDOWMOVER    gatorbox_windowmove
        !            54: 
        !            55: gatorbox_init(ip)
        !            56:        register struct ite_softc *ip;
        !            57: {
        !            58:        /* XXX */
        !            59:        if (ip->regbase == 0) {
        !            60:                struct grfinfo *gi = &grf_softc[ip - ite_softc].g_display;
        !            61:                ip->regbase = IOV(gi->gd_regaddr);
        !            62:                ip->fbbase = IOV(gi->gd_fbaddr);
        !            63:        }
        !            64: 
        !            65:        REGBASE->write_protect = 0x0;
        !            66:        REGBASE->interrupt = 0x4;
        !            67:        REGBASE->rep_rule = RR_COPY;
        !            68:        REGBASE->blink1 = 0xff;
        !            69:        REGBASE->blink2 = 0xff;
        !            70:        gb_microcode(REGADDR);
        !            71:        REGBASE->sec_interrupt = 0x01;
        !            72: 
        !            73:        /*
        !            74:         * Set up the color map entries. We use three entries in the
        !            75:         * color map. The first, is for black, the second is for
        !            76:         * white, and the very last entry is for the inverted cursor.
        !            77:         */
        !            78:        REGBASE->creg_select = 0x00;
        !            79:        REGBASE->cmap_red    = 0x00;
        !            80:        REGBASE->cmap_grn    = 0x00;
        !            81:        REGBASE->cmap_blu    = 0x00;
        !            82:        REGBASE->cmap_write  = 0x00;
        !            83:        gbcm_waitbusy(REGADDR);
        !            84:        
        !            85:        REGBASE->creg_select = 0x01;
        !            86:        REGBASE->cmap_red    = 0xFF;
        !            87:        REGBASE->cmap_grn    = 0xFF;
        !            88:        REGBASE->cmap_blu    = 0xFF;
        !            89:        REGBASE->cmap_write  = 0x01;
        !            90:        gbcm_waitbusy(REGADDR);
        !            91: 
        !            92:        REGBASE->creg_select = 0xFF;
        !            93:        REGBASE->cmap_red    = 0xFF;
        !            94:        REGBASE->cmap_grn    = 0xFF;
        !            95:        REGBASE->cmap_blu    = 0xFF;
        !            96:        REGBASE->cmap_write  = 0x01;
        !            97:        gbcm_waitbusy(REGADDR);
        !            98: 
        !            99:        ite_devinfo(ip);
        !           100:        ite_fontinit(ip);
        !           101: 
        !           102:        /*
        !           103:         * Clear the display. This used to be before the font unpacking
        !           104:         * but it crashes. Figure it out later.
        !           105:         */
        !           106:        gatorbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
        !           107:        tile_mover_waitbusy(REGADDR);
        !           108: 
        !           109:        /*
        !           110:         * Stash the inverted cursor.
        !           111:         */
        !           112:        gatorbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
        !           113:                            ip->cblanky, ip->cblankx, ip->ftheight,
        !           114:                            ip->ftwidth, RR_COPYINVERTED);
        !           115: }
        !           116: 
        !           117: gatorbox_deinit(ip)
        !           118:        struct ite_softc *ip;
        !           119: {
        !           120:        gatorbox_windowmove(ip, 0, 0, 0, 0,
        !           121:                            ip->dheight, ip->dwidth, RR_CLEAR);
        !           122:        tile_mover_waitbusy(REGADDR);
        !           123: 
        !           124:        ip->flags &= ~ITE_INITED;
        !           125: }
        !           126: 
        !           127: gatorbox_putc(ip, c, dy, dx, mode)
        !           128:        register struct ite_softc *ip;
        !           129:         register int dy, dx;
        !           130:        int c, mode;
        !           131: {
        !           132:         register int wrr = ((mode == ATTR_INV) ? RR_COPYINVERTED : RR_COPY);
        !           133: 
        !           134:        gatorbox_windowmove(ip, charY(ip, c), charX(ip, c),
        !           135:                            dy * ip->ftheight, dx * ip->ftwidth,
        !           136:                            ip->ftheight, ip->ftwidth, wrr);
        !           137: }
        !           138: 
        !           139: gatorbox_cursor(ip, flag)
        !           140:        register struct ite_softc *ip;
        !           141:         register int flag;
        !           142: {
        !           143:        if (flag == DRAW_CURSOR)
        !           144:                draw_cursor(ip)
        !           145:        else if (flag == MOVE_CURSOR) {
        !           146:                erase_cursor(ip)
        !           147:                draw_cursor(ip)
        !           148:        }
        !           149:        else
        !           150:                erase_cursor(ip)
        !           151: }
        !           152: 
        !           153: gatorbox_clear(ip, sy, sx, h, w)
        !           154:        struct ite_softc *ip;
        !           155:        register int sy, sx, h, w;
        !           156: {
        !           157:        gatorbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           158:                            sy * ip->ftheight, sx * ip->ftwidth, 
        !           159:                            h  * ip->ftheight, w  * ip->ftwidth,
        !           160:                            RR_CLEAR);
        !           161: }
        !           162: #define        gatorbox_blockmove(ip, sy, sx, dy, dx, h, w) \
        !           163:        gatorbox_windowmove((ip), \
        !           164:                            (sy) * ip->ftheight, \
        !           165:                            (sx) * ip->ftwidth, \
        !           166:                            (dy) * ip->ftheight, \
        !           167:                            (dx) * ip->ftwidth, \
        !           168:                            (h)  * ip->ftheight, \
        !           169:                            (w)  * ip->ftwidth, \
        !           170:                            RR_COPY)
        !           171: 
        !           172: gatorbox_scroll(ip, sy, sx, count, dir)
        !           173:         register struct ite_softc *ip;
        !           174:         register int sy;
        !           175:         int dir, sx, count;
        !           176: {
        !           177:        register int height, dy, i;
        !           178:        
        !           179:        tile_mover_waitbusy(REGADDR);
        !           180:        REGBASE->write_protect = 0x0;
        !           181:        
        !           182:        gatorbox_cursor(ip, ERASE_CURSOR);
        !           183: 
        !           184:        if (dir == SCROLL_UP) {
        !           185:                dy = sy - count;
        !           186:                height = ip->rows - sy;
        !           187:                for (i = 0; i < height; i++)
        !           188:                        gatorbox_blockmove(ip, sy + i, sx, dy + i, 0,
        !           189:                                           1, ip->cols);
        !           190:        }
        !           191:        else if (dir == SCROLL_DOWN) {
        !           192:                dy = sy + count;
        !           193:                height = ip->rows - dy;
        !           194:                for (i = (height - 1); i >= 0; i--)
        !           195:                        gatorbox_blockmove(ip, sy + i, sx, dy + i, 0,
        !           196:                                           1, ip->cols);
        !           197:        }
        !           198:        else if (dir == SCROLL_RIGHT) {
        !           199:                gatorbox_blockmove(ip, sy, sx, sy, sx + count,
        !           200:                                   1, ip->cols - (sx + count));
        !           201:        }
        !           202:        else {
        !           203:                gatorbox_blockmove(ip, sy, sx, sy, sx - count,
        !           204:                                   1, ip->cols - sx);
        !           205:        }               
        !           206: }
        !           207: 
        !           208: gatorbox_windowmove(ip, sy, sx, dy, dx, h, w, mask)
        !           209:      register struct ite_softc *ip;
        !           210:      int sy, sx, dy, dx, mask;
        !           211:      register int h, w;
        !           212: {
        !           213:        register int src, dest;
        !           214: 
        !           215:        src  = (sy * 1024) + sx;        /* upper left corner in pixels */
        !           216:        dest = (dy * 1024) + dx;
        !           217: 
        !           218:        tile_mover_waitbusy(REGADDR);
        !           219:        REGBASE->width = -(w / 4);
        !           220:        REGBASE->height = -(h / 4);
        !           221:        if (src < dest)
        !           222:                REGBASE->rep_rule = MOVE_DOWN_RIGHT|mask;
        !           223:        else {
        !           224:                REGBASE->rep_rule = MOVE_UP_LEFT|mask;
        !           225:                /*
        !           226:                 * Adjust to top of lower right tile of the block.
        !           227:                 */
        !           228:                src = src + ((h - 4) * 1024) + (w - 4);
        !           229:                dest= dest + ((h - 4) * 1024) + (w - 4);
        !           230:        }
        !           231:        FBBASE[dest] = FBBASE[src];
        !           232: }
        !           233: #endif

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