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Annotation of 43BSDReno/sys/hpstand/conf.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution is only permitted until one year after the first shipment
        !             6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !             7:  * binary forms are permitted provided that: (1) source distributions retain
        !             8:  * this entire copyright notice and comment, and (2) distributions including
        !             9:  * binaries display the following acknowledgement:  This product includes
        !            10:  * software developed by the University of California, Berkeley and its
        !            11:  * contributors'' in the documentation or other materials provided with the
        !            12:  * distribution and in all advertising materials mentioning features or use
        !            13:  * of this software.  Neither the name of the University nor the names of
        !            14:  * its contributors may be used to endorse or promote products derived from
        !            15:  * this software without specific prior written permission.
        !            16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            19:  *
        !            20:  *     @(#)conf.c      7.2 (Berkeley) 7/1/90
        !            21:  */
        !            22: 
        !            23: #include "saio.h"
        !            24: 
        !            25: devread(io)
        !            26:        register struct iob *io;
        !            27: {
        !            28:        int cc;
        !            29: 
        !            30:        /* check for interrupt */
        !            31:        (void) peekchar();
        !            32: 
        !            33:        io->i_flgs |= F_RDDATA;
        !            34:        io->i_error = 0;
        !            35:        cc = (*devsw[io->i_dev].dv_strategy)(io, READ);
        !            36:        io->i_flgs &= ~F_TYPEMASK;
        !            37:        return (cc);
        !            38: }
        !            39: 
        !            40: devwrite(io)
        !            41:        register struct iob *io;
        !            42: {
        !            43:        int cc;
        !            44: 
        !            45:        io->i_flgs |= F_WRDATA;
        !            46:        io->i_error = 0;
        !            47:        cc = (*devsw[io->i_dev].dv_strategy)(io, WRITE);
        !            48:        io->i_flgs &= ~F_TYPEMASK;
        !            49:        return (cc);
        !            50: }
        !            51: 
        !            52: devopen(io)
        !            53:        register struct iob *io;
        !            54: {
        !            55: 
        !            56:        (*devsw[io->i_dev].dv_open)(io);
        !            57: }
        !            58: 
        !            59: devclose(io)
        !            60:        register struct iob *io;
        !            61: {
        !            62: 
        !            63:        (*devsw[io->i_dev].dv_close)(io);
        !            64: }
        !            65: 
        !            66: devioctl(io, cmd, arg)
        !            67:        register struct iob *io;
        !            68:        int cmd;
        !            69:        caddr_t arg;
        !            70: {
        !            71: 
        !            72:        return ((*devsw[io->i_dev].dv_ioctl)(io, cmd, arg));
        !            73: }
        !            74: 
        !            75: /*ARGSUSED*/
        !            76: nullsys(io)
        !            77:        struct iob *io;
        !            78: {
        !            79: 
        !            80:        ;
        !            81: }
        !            82: 
        !            83: /*ARGSUSED*/
        !            84: nullioctl(io, cmd, arg)
        !            85:        struct iob *io;
        !            86:        int cmd;
        !            87:        caddr_t arg;
        !            88: {
        !            89: 
        !            90:        return (ECMD);
        !            91: }
        !            92: 
        !            93: int    nullsys(), nullioctl();
        !            94: int    rdstrategy(), rdopen(), rdioctl();
        !            95: int    sdstrategy(), sdopen(), sdioctl();
        !            96: #ifndef BOOT
        !            97: int    ctstrategy(), ctopen(), ctclose();
        !            98: #endif
        !            99: 
        !           100: struct devsw devsw[] = {
        !           101:        { "rd", rdstrategy,     rdopen,         nullsys,        nullioctl },
        !           102:        { "sd", sdstrategy,     sdopen,         nullsys,        nullioctl },
        !           103: #ifndef BOOT
        !           104:        { "ct", ctstrategy,     ctopen,         ctclose,        nullioctl },
        !           105: #endif
        !           106:        { 0, 0, 0, 0, 0 },
        !           107: };

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