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Annotation of Net2/arch/hp300/dev/ite_rb.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 $Hdr: ite_rb.c 1.16 91/01/21$
        !            39:  *
        !            40:  *     @(#)ite_rb.c    7.5 (Berkeley) 5/7/91
        !            41:  */
        !            42: 
        !            43: #include "ite.h"
        !            44: #if NITE > 0
        !            45: 
        !            46: #include "param.h"
        !            47: #include "conf.h"
        !            48: #include "proc.h"
        !            49: #include "ioctl.h"
        !            50: #include "tty.h"
        !            51: #include "systm.h"
        !            52: 
        !            53: #include "itevar.h"
        !            54: #include "itereg.h"
        !            55: #include "grf_rbreg.h"
        !            56: 
        !            57: #include "machine/cpu.h"
        !            58: 
        !            59: /* XXX */
        !            60: #include "grfioctl.h"
        !            61: #include "grfvar.h"
        !            62: 
        !            63: #define REGBASE                ((struct rboxfb *)(ip->regbase))
        !            64: #define WINDOWMOVER    rbox_windowmove
        !            65: 
        !            66: rbox_init(ip)
        !            67:        struct ite_softc *ip;
        !            68: {
        !            69:        register int i;
        !            70: 
        !            71:        /* XXX */
        !            72:        if (ip->regbase == 0) {
        !            73:                struct grf_softc *gp = &grf_softc[ip - ite_softc];
        !            74:                ip->regbase = gp->g_regkva;
        !            75:                ip->fbbase = gp->g_fbkva;
        !            76:        }
        !            77: 
        !            78:        rb_waitbusy(REGADDR);
        !            79: 
        !            80:        REGBASE->reset = 0x39;
        !            81:        DELAY(1000);
        !            82: 
        !            83:        REGBASE->interrupt = 0x04;
        !            84:        REGBASE->display_enable = 0x01;
        !            85:        REGBASE->video_enable = 0x01;
        !            86:        REGBASE->drive = 0x01;
        !            87:        REGBASE->vdrive = 0x0;
        !            88: 
        !            89:        ite_devinfo(ip);
        !            90:        
        !            91:        REGBASE->opwen = 0xFF;
        !            92: 
        !            93:        /*
        !            94:         * Clear the framebuffer.
        !            95:         */
        !            96:        rbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
        !            97:        rb_waitbusy(REGADDR);
        !            98: 
        !            99:        for(i = 0; i < 16; i++) {
        !           100:                *(REGADDR + 0x63c3 + i*4) = 0x0;
        !           101:                *(REGADDR + 0x6403 + i*4) = 0x0;
        !           102:                *(REGADDR + 0x6803 + i*4) = 0x0;
        !           103:                *(REGADDR + 0x6c03 + i*4) = 0x0;
        !           104:                *(REGADDR + 0x73c3 + i*4) = 0x0;
        !           105:                *(REGADDR + 0x7403 + i*4) = 0x0;
        !           106:                *(REGADDR + 0x7803 + i*4) = 0x0;
        !           107:                *(REGADDR + 0x7c03 + i*4) = 0x0;
        !           108:        }
        !           109: 
        !           110:        REGBASE->rep_rule = 0x33;
        !           111:        
        !           112:        /*
        !           113:         * I cannot figure out how to make the blink planes stop. So, we
        !           114:         * must set both colormaps so that when the planes blink, and
        !           115:         * the secondary colormap is active, we still get text.
        !           116:         */
        !           117:        CM1RED[0x00].value = 0x00;
        !           118:        CM1GRN[0x00].value = 0x00;
        !           119:        CM1BLU[0x00].value = 0x00;
        !           120:        CM1RED[0x01].value = 0xFF;
        !           121:        CM1GRN[0x01].value = 0xFF;
        !           122:        CM1BLU[0x01].value = 0xFF;
        !           123: 
        !           124:        CM2RED[0x00].value = 0x00;
        !           125:        CM2GRN[0x00].value = 0x00;
        !           126:        CM2BLU[0x00].value = 0x00;
        !           127:        CM2RED[0x01].value = 0xFF;
        !           128:        CM2GRN[0x01].value = 0xFF;
        !           129:        CM2BLU[0x01].value = 0xFF;
        !           130: 
        !           131:        REGBASE->blink = 0x00;
        !           132:        REGBASE->write_enable = 0x01;
        !           133:        REGBASE->opwen = 0x00;
        !           134:        
        !           135:        ite_fontinit(ip);
        !           136:        
        !           137:        /*
        !           138:         * Stash the inverted cursor.
        !           139:         */
        !           140:        rbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
        !           141:                            ip->cblanky, ip->cblankx, ip->ftheight,
        !           142:                            ip->ftwidth, RR_COPYINVERTED);
        !           143: }
        !           144: 
        !           145: rbox_deinit(ip)
        !           146:        struct ite_softc *ip;
        !           147: {
        !           148:        rbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
        !           149:        rb_waitbusy(REGADDR);
        !           150: 
        !           151:        ip->flags &= ~ITE_INITED;
        !           152: }
        !           153: 
        !           154: rbox_putc(ip, c, dy, dx, mode)
        !           155:        register struct ite_softc *ip;
        !           156:         register int dy, dx;
        !           157:        int c, mode;
        !           158: {
        !           159:         register int wrr = ((mode == ATTR_INV) ? RR_COPYINVERTED : RR_COPY);
        !           160:        
        !           161:        rbox_windowmove(ip, charY(ip, c), charX(ip, c),
        !           162:                        dy * ip->ftheight, dx * ip->ftwidth,
        !           163:                        ip->ftheight, ip->ftwidth, wrr);
        !           164: }
        !           165: 
        !           166: rbox_cursor(ip, flag)
        !           167:        register struct ite_softc *ip;
        !           168:         register int flag;
        !           169: {
        !           170:        if (flag == DRAW_CURSOR)
        !           171:                draw_cursor(ip)
        !           172:        else if (flag == MOVE_CURSOR) {
        !           173:                erase_cursor(ip)
        !           174:                draw_cursor(ip)
        !           175:        }
        !           176:        else
        !           177:                erase_cursor(ip)
        !           178: }
        !           179: 
        !           180: rbox_clear(ip, sy, sx, h, w)
        !           181:        struct ite_softc *ip;
        !           182:        register int sy, sx, h, w;
        !           183: {
        !           184:        rbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           185:                        sy * ip->ftheight, sx * ip->ftwidth, 
        !           186:                        h  * ip->ftheight, w  * ip->ftwidth,
        !           187:                        RR_CLEAR);
        !           188: }
        !           189: 
        !           190: rbox_scroll(ip, sy, sx, count, dir)
        !           191:         register struct ite_softc *ip;
        !           192:         register int sy, count;
        !           193:         int dir, sx;
        !           194: {
        !           195:        register int dy;
        !           196:        register int dx = sx;
        !           197:        register int height = 1;
        !           198:        register int width = ip->cols;
        !           199: 
        !           200:        rbox_cursor(ip, ERASE_CURSOR);
        !           201: 
        !           202:        if (dir == SCROLL_UP) {
        !           203:                dy = sy - count;
        !           204:                height = ip->rows - sy;
        !           205:        }
        !           206:        else if (dir == SCROLL_DOWN) {
        !           207:                dy = sy + count;
        !           208:                height = ip->rows - dy - 1;
        !           209:        }
        !           210:        else if (dir == SCROLL_RIGHT) {
        !           211:                dy = sy;
        !           212:                dx = sx + count;
        !           213:                width = ip->cols - dx;
        !           214:        }
        !           215:        else {
        !           216:                dy = sy;
        !           217:                dx = sx - count;
        !           218:                width = ip->cols - sx;
        !           219:        }               
        !           220: 
        !           221:        rbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           222:                        dy * ip->ftheight, dx * ip->ftwidth,
        !           223:                        height * ip->ftheight,
        !           224:                        width  * ip->ftwidth, RR_COPY);
        !           225: }
        !           226: 
        !           227: rbox_windowmove(ip, sy, sx, dy, dx, h, w, func)
        !           228:        struct ite_softc *ip;
        !           229:        int sy, sx, dy, dx, h, w, func;
        !           230: {
        !           231:        register struct rboxfb *rp = REGBASE;
        !           232:        if (h == 0 || w == 0)
        !           233:                return;
        !           234:        
        !           235:        rb_waitbusy(REGADDR);
        !           236:        rp->rep_rule = func << 4 | func;
        !           237:        rp->source_y = sy;
        !           238:        rp->source_x = sx;
        !           239:        rp->dest_y = dy;
        !           240:        rp->dest_x = dx;
        !           241:        rp->wheight = h;
        !           242:        rp->wwidth  = w;
        !           243:        rp->wmove = 1;
        !           244: }
        !           245: #endif

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