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Annotation of Net2/arch/hp300/dev/ite_tc.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 $Hdr: ite_tc.c 1.25 91/03/25$
        !            39:  *
        !            40:  *     @(#)ite_tc.c    7.4 (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 "grf_tcreg.h"
        !            54: #include "itereg.h"
        !            55: #include "itevar.h"
        !            56: 
        !            57: #include "machine/cpu.h"
        !            58: 
        !            59: #define REGBASE                ((struct tcboxfb *)(ip->regbase))
        !            60: #define WINDOWMOVER    topcat_windowmove
        !            61: 
        !            62: /* XXX */
        !            63: #include "grfioctl.h"
        !            64: #include "grfvar.h"
        !            65: 
        !            66: topcat_init(ip)
        !            67:        register struct ite_softc *ip;
        !            68: {
        !            69:        /* XXX */
        !            70:        if (ip->regbase == NULL) {
        !            71:                struct grf_softc *gp = &grf_softc[ip - ite_softc];
        !            72:                ip->regbase = gp->g_regkva;
        !            73:                ip->fbbase = gp->g_fbkva;
        !            74:        }
        !            75: 
        !            76:        /*
        !            77:         * Catseye looks a lot like a topcat, but not completely.
        !            78:         * So, we set some bits to make it work.
        !            79:         */
        !            80:        if (REGBASE->fbid != GID_TOPCAT) {
        !            81:                while ((REGBASE->catseye_status & 1))
        !            82:                        ;
        !            83:                REGBASE->catseye_status = 0x0;
        !            84:                REGBASE->vb_select      = 0x0;
        !            85:                REGBASE->tcntrl         = 0x0;
        !            86:                REGBASE->acntrl         = 0x0;
        !            87:                REGBASE->pncntrl        = 0x0;
        !            88:                REGBASE->rug_cmdstat    = 0x90;
        !            89:        }
        !            90: 
        !            91:        /*
        !            92:         * Determine the number of planes by writing to the first frame
        !            93:         * buffer display location, then reading it back. 
        !            94:         */
        !            95:        REGBASE->wen = ~0;
        !            96:        REGBASE->fben = ~0;
        !            97:        REGBASE->prr = RR_COPY;
        !            98:        *FBBASE = 0xFF;
        !            99:        ip->planemask = *FBBASE;
        !           100: 
        !           101:        /*
        !           102:         * Enable reading/writing of all the planes.
        !           103:         */
        !           104:        REGBASE->fben = ip->planemask;
        !           105:        REGBASE->wen  = ip->planemask;
        !           106:        REGBASE->ren  = ip->planemask;
        !           107:        REGBASE->prr  = RR_COPY;
        !           108: 
        !           109:        ite_devinfo(ip);
        !           110: 
        !           111:        /*
        !           112:         * Clear the framebuffer on all planes.
        !           113:         */
        !           114:        topcat_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
        !           115:        tc_waitbusy(REGADDR, ip->planemask);
        !           116: 
        !           117:        ite_fontinit(ip);
        !           118: 
        !           119:        /*
        !           120:         * Initialize color map for color displays
        !           121:         */
        !           122:        if (ip->planemask != 1) {
        !           123:                tc_waitbusy(REGADDR, ip->planemask);
        !           124:                REGBASE->nblank = 0x01;
        !           125: 
        !           126:                tccm_waitbusy(REGADDR);
        !           127:                REGBASE->rdata  = 0x0;
        !           128:                REGBASE->gdata  = 0x0;
        !           129:                REGBASE->bdata  = 0x0;
        !           130:                REGBASE->cindex = 0xFF;
        !           131:                REGBASE->strobe = 0xFF;
        !           132: 
        !           133:                DELAY(100);
        !           134:                tccm_waitbusy(REGADDR);
        !           135:                REGBASE->rdata  = 0x0;
        !           136:                REGBASE->gdata  = 0x0;
        !           137:                REGBASE->bdata  = 0x0;
        !           138:                REGBASE->cindex = 0x0;
        !           139: 
        !           140:                DELAY(100);
        !           141:                tccm_waitbusy(REGADDR);
        !           142:                REGBASE->rdata  = 0xFF;
        !           143:                REGBASE->gdata  = 0xFF;
        !           144:                REGBASE->bdata  = 0xFF;
        !           145:                REGBASE->cindex = 0xFE;
        !           146:                REGBASE->strobe = 0xFF;
        !           147: 
        !           148:                DELAY(100);
        !           149:                tccm_waitbusy(REGADDR);
        !           150:                REGBASE->rdata  = 0x0;
        !           151:                REGBASE->gdata  = 0x0;
        !           152:                REGBASE->bdata  = 0x0;
        !           153:                REGBASE->cindex = 0x0;
        !           154:        }
        !           155: 
        !           156:        /*
        !           157:         * Stash the inverted cursor.
        !           158:         */
        !           159:        topcat_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
        !           160:                          ip->cblanky, ip->cblankx, ip->ftheight,
        !           161:                          ip->ftwidth, RR_COPYINVERTED);
        !           162: }
        !           163: 
        !           164: topcat_deinit(ip)
        !           165:        register struct ite_softc *ip;
        !           166: {
        !           167:        topcat_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
        !           168:        tc_waitbusy(REGADDR, ip->planemask);
        !           169: 
        !           170:        REGBASE->nblank = ~0;
        !           171:        ip->flags &= ~ITE_INITED;
        !           172: }
        !           173: 
        !           174: topcat_putc(ip, c, dy, dx, mode)
        !           175:        register struct ite_softc *ip;
        !           176:        int c, dy, dx, mode;
        !           177: {
        !           178:         int wmrr = ((mode == ATTR_INV) ? RR_COPYINVERTED : RR_COPY);
        !           179:        
        !           180:        topcat_windowmove(ip, charY(ip, c), charX(ip, c),
        !           181:                          dy * ip->ftheight, dx * ip->ftwidth,
        !           182:                          ip->ftheight, ip->ftwidth, wmrr);
        !           183: }
        !           184: 
        !           185: topcat_cursor(ip, flag)
        !           186:        register struct ite_softc *ip;
        !           187:        register int flag;
        !           188: {
        !           189:        if (flag == DRAW_CURSOR)
        !           190:                draw_cursor(ip)
        !           191:        else if (flag == MOVE_CURSOR) {
        !           192:                erase_cursor(ip)
        !           193:                draw_cursor(ip)
        !           194:        }
        !           195:        else
        !           196:                erase_cursor(ip)
        !           197: }
        !           198: 
        !           199: topcat_clear(ip, sy, sx, h, w)
        !           200:        register struct ite_softc *ip;
        !           201:        register int sy, sx, h, w;
        !           202: {
        !           203:        topcat_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           204:                          sy * ip->ftheight, sx * ip->ftwidth, 
        !           205:                          h  * ip->ftheight, w  * ip->ftwidth,
        !           206:                          RR_CLEAR);
        !           207: }
        !           208: 
        !           209: topcat_scroll(ip, sy, sx, count, dir)
        !           210:         register struct ite_softc *ip;
        !           211:         register int sy, count;
        !           212:         int dir, sx;
        !           213: {
        !           214:        register int dy;
        !           215:        register int dx = sx;
        !           216:        register int height = 1;
        !           217:        register int width = ip->cols;
        !           218: 
        !           219:        topcat_cursor(ip, ERASE_CURSOR);
        !           220: 
        !           221:        if (dir == SCROLL_UP) {
        !           222:                dy = sy - count;
        !           223:                height = ip->rows - sy;
        !           224:        }
        !           225:        else if (dir == SCROLL_DOWN) {
        !           226:                dy = sy + count;
        !           227:                height = ip->rows - dy - 1;
        !           228:        }
        !           229:        else if (dir == SCROLL_RIGHT) {
        !           230:                dy = sy;
        !           231:                dx = sx + count;
        !           232:                width = ip->cols - dx;
        !           233:        }
        !           234:        else {
        !           235:                dy = sy;
        !           236:                dx = sx - count;
        !           237:                width = ip->cols - sx;
        !           238:        }               
        !           239: 
        !           240:        topcat_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
        !           241:                          dy * ip->ftheight, dx * ip->ftwidth,
        !           242:                          height * ip->ftheight,
        !           243:                          width  * ip->ftwidth, RR_COPY);
        !           244: }
        !           245: 
        !           246: topcat_windowmove(ip, sy, sx, dy, dx, h, w, func)
        !           247:        struct ite_softc *ip;
        !           248:        int sy, sx, dy, dx, h, w, func;
        !           249: {
        !           250:        register struct tcboxfb *rp = REGBASE;
        !           251:        
        !           252:        if (h == 0 || w == 0)
        !           253:                return;
        !           254:        tc_waitbusy(REGADDR, ip->planemask);
        !           255:        rp->wmrr     = func;
        !           256:        rp->source_y = sy;
        !           257:        rp->source_x = sx;
        !           258:        rp->dest_y   = dy;
        !           259:        rp->dest_x   = dx;
        !           260:        rp->wheight  = h;
        !           261:        rp->wwidth   = w;
        !           262:        rp->wmove    = ip->planemask;
        !           263: }
        !           264: #endif

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