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Annotation of coherent/d/286_KERNEL/USRSRC/io/console.c, revision 1.1

1.1     ! root        1: /* $Header: /usr/src/sys/i8086/drv/RCS/console.c,v 2.1 88/09/03 13:03:39 src Exp $ */
        !             2: /*
        !             3:  * Tiny console driver.
        !             4:  * 8086/8088 Coherent, IBM PC.
        !             5:  *
        !             6:  * $Log:       /usr/src/sys/i8086/drv/RCS/console.c,v $
        !             7:  * Revision 2.1        88/09/03  13:03:39      src
        !             8:  * *** empty log message ***
        !             9:  * 
        !            10:  * Revision 1.1        88/03/24  17:04:25      src
        !            11:  * Initial revision
        !            12:  * 
        !            13:  * 86/11/19    Allan Cornish           /usr/src/sys/i8086/drv/console.c
        !            14:  * putchar() initializes the (new) (IO).io_flag field to 0.
        !            15:  */
        !            16: #include <sys/coherent.h>
        !            17: #include <sys/inode.h>
        !            18: #include <sys/stat.h>
        !            19: #include <sys/con.h>
        !            20: #include <sys/io.h>
        !            21: 
        !            22: dev_t condev = makedev(2,0);
        !            23: 
        !            24: putchar(c)
        !            25: int c;
        !            26: {
        !            27:        static coninit;
        !            28:        IO iob;
        !            29: 
        !            30:        if (coninit == 0) {
        !            31:                ++coninit;
        !            32:                dopen( condev, IPW, DFCHR );
        !            33:        }
        !            34: 
        !            35:        if (c == '\n')
        !            36:                putchar('\r');
        !            37: 
        !            38:        iob.io_seg  = IOSYS;
        !            39:        iob.io_ioc  = 1;
        !            40:        iob.io_base = &c;
        !            41:        iob.io_flag = 0;
        !            42:        dwrite( condev, &iob );
        !            43: }

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