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Annotation of sys/arch/armish/stand/boot/dev_armish.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: dev_armish.c,v 1.1 2006/07/29 15:01:49 kettenis Exp $ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2006 Mark Kettenis
        !             5:  *
        !             6:  * Permission to use, copy, modify, and distribute this software for any
        !             7:  * purpose with or without fee is hereby granted, provided that the above
        !             8:  * copyright notice and this permission notice appear in all copies.
        !             9:  *
        !            10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17:  */
        !            18:
        !            19: #include <sys/param.h>
        !            20: #include <dev/cons.h>
        !            21:
        !            22: #include "libsa.h"
        !            23:
        !            24: const char cdevs[][4] = {
        !            25:        "cn", "", "", "", "", "", "", "",
        !            26:        "", "", "", "", "com"
        !            27: };
        !            28: const int ncdevs = NENTS(cdevs);
        !            29:
        !            30: void
        !            31: devboot(dev_t dev, char *p)
        !            32: {
        !            33:        strlcpy(p, "wd0a", 5);
        !            34: }
        !            35:
        !            36: int
        !            37: cnspeed(dev_t dev, int sp)
        !            38: {
        !            39:        return CONSPEED;
        !            40: }
        !            41:
        !            42: int pch_pos;
        !            43:
        !            44: void
        !            45: putchar(c)
        !            46:        int c;
        !            47: {
        !            48:        switch(c) {
        !            49:        case '\177':    /* DEL erases */
        !            50:                cnputc('\b');
        !            51:                cnputc(' ');
        !            52:        case '\b':
        !            53:                cnputc('\b');
        !            54:                if (pch_pos)
        !            55:                        pch_pos--;
        !            56:                break;
        !            57:        case '\t':
        !            58:                do
        !            59:                        cnputc(' ');
        !            60:                while(++pch_pos % 8);
        !            61:                break;
        !            62:        case '\n':
        !            63:        case '\r':
        !            64:                cnputc(c);
        !            65:                pch_pos=0;
        !            66:                break;
        !            67:        default:
        !            68:                cnputc(c);
        !            69:                pch_pos++;
        !            70:                break;
        !            71:        }
        !            72: }
        !            73:
        !            74: int
        !            75: getchar()
        !            76: {
        !            77:        int c = cngetc();
        !            78:
        !            79:        if (c == '\r')
        !            80:                c = '\n';
        !            81:
        !            82:        if ((c < ' ' && c != '\n') || c == '\177')
        !            83:                return(c);
        !            84:
        !            85:        putchar(c);
        !            86:
        !            87:        return(c);
        !            88: }
        !            89:
        !            90: char ttyname_buf[8];
        !            91:
        !            92: char *
        !            93: ttyname(int fd)
        !            94: {
        !            95:        snprintf(ttyname_buf, sizeof ttyname_buf, "%s%d",
        !            96:            cdevs[major(cn_tab->cn_dev)], minor(cn_tab->cn_dev));
        !            97:
        !            98:        return ttyname_buf;
        !            99: }
        !           100:
        !           101: dev_t
        !           102: ttydev(char *name)
        !           103: {
        !           104:        int i, unit = -1;
        !           105:        char *no = name + strlen(name) - 1;
        !           106:
        !           107:        while (no >= name && *no >= '0' && *no <= '9')
        !           108:                unit = (unit < 0 ? 0 : (unit * 10)) + *no-- - '0';
        !           109:        if (no < name || unit < 0)
        !           110:                return NODEV;
        !           111:        for (i = 0; i < ncdevs; i++)
        !           112:                if (strncmp(name, cdevs[i], no - name + 1) == 0)
        !           113:                        return (makedev(i, unit));
        !           114:        return NODEV;
        !           115: }