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Annotation of 43BSDReno/sys/hpstand/ite_subr.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 $Hdr: ite_subr.c 1.1 89/02/17$
        !            26:  *
        !            27:  *     @(#)ite_subr.c  7.1 (Berkeley) 5/8/90
        !            28:  */
        !            29: 
        !            30: #include "samachdep.h"
        !            31: 
        !            32: #ifdef ITECONSOLE
        !            33: 
        !            34: #include "param.h"
        !            35: #include "../hpdev/itevar.h"
        !            36: #include "../hpdev/itereg.h"
        !            37: 
        !            38: ite_devinfo(ip)
        !            39:        struct ite_softc *ip;
        !            40: {
        !            41:        struct fontinfo *fi;
        !            42:        struct font *fd;
        !            43: 
        !            44:        fi = (struct fontinfo *) ((*FONTROM << 8 | *(FONTROM + 2)) + REGADDR);
        !            45:        fd = (struct font *) ((fi->haddr << 8 | fi->laddr) + REGADDR);
        !            46: 
        !            47:        ip->ftheight = fd->fh;
        !            48:        ip->ftwidth  = fd->fw;
        !            49:        ip->fbwidth  = ITEREGS->fbwidth_h << 8 | ITEREGS->fbwidth_l;
        !            50:        ip->fbheight = ITEREGS->fbheight_h << 8 | ITEREGS->fbheight_l;
        !            51:        ip->dwidth   = ITEREGS->dispwidth_h << 8 | ITEREGS->dispwidth_l;
        !            52:        ip->dheight  = ITEREGS->dispheight_h << 8 | ITEREGS->dispheight_l;
        !            53:        ip->rows     = ip->dheight / ip->ftheight;
        !            54:        ip->cols     = ip->dwidth / ip->ftwidth;
        !            55: 
        !            56:        if (ip->fbwidth > ip->dwidth) {
        !            57:                /*
        !            58:                 * Stuff goes to right of display.
        !            59:                 */
        !            60:                ip->fontx    = ip->dwidth;
        !            61:                ip->fonty    = 0;
        !            62:                ip->cpl      = (ip->fbwidth - ip->dwidth) / ip->ftwidth;
        !            63:                ip->cblankx  = ip->dwidth;
        !            64:                ip->cblanky  = ip->fonty + ((128 / ip->cpl) +1) * ip->ftheight;
        !            65:        }
        !            66:        else {
        !            67:                /*
        !            68:                 * Stuff goes below the display.
        !            69:                 */
        !            70:                ip->fontx   = 0;
        !            71:                ip->fonty   = ip->dheight;
        !            72:                ip->cpl     = ip->fbwidth / ip->ftwidth;
        !            73:                ip->cblankx = 0;
        !            74:                ip->cblanky = ip->fonty + ((128 / ip->cpl) + 1) * ip->ftheight;
        !            75:        }
        !            76: }
        !            77: 
        !            78: ite_fontinit(ip)
        !            79:        register struct ite_softc *ip;
        !            80: {
        !            81:        struct fontinfo *fi;
        !            82:        struct font *fd;
        !            83:        register u_char *fbmem, *dp;
        !            84:        register int bn;
        !            85:        int c, l, b;
        !            86: 
        !            87:        fi = (struct fontinfo *) ((*FONTROM << 8 | *(FONTROM + 2)) + REGADDR);
        !            88:        fd = (struct font *) ((fi->haddr << 8 | fi->laddr) + REGADDR);
        !            89: 
        !            90:        dp = fd->data;
        !            91: 
        !            92:        for (c = 0; c < 128; c++) {
        !            93:                fbmem = (u_char *) FBBASE +
        !            94:                        (ip->fonty + (c / ip->cpl) * ip->ftheight) *
        !            95:                        ip->fbwidth;
        !            96:                fbmem += ip->fontx + (c % ip->cpl) * ip->ftwidth;
        !            97:                for (l = 0; l < ip->ftheight; l++) {
        !            98:                        bn = 7;
        !            99:                        for (b = 0; b < ip->ftwidth; b++) {
        !           100:                                if ((1 << bn) & *dp)
        !           101:                                        *fbmem++ = 1;
        !           102:                                else
        !           103:                                        *fbmem++ = 0;
        !           104:                                if (--bn < 0) {
        !           105:                                        bn = 7;
        !           106:                                        dp += 2;
        !           107:                                }
        !           108:                        }
        !           109:                        if (bn < 7)
        !           110:                                dp += 2;
        !           111:                        fbmem -= ip->ftwidth;
        !           112:                        fbmem += ip->fbwidth;
        !           113:                }
        !           114:        }
        !           115: 
        !           116: }
        !           117: #endif

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