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Annotation of xinu/sys/dlcputc.c, revision 1.1

1.1     ! root        1: /* dlcputc.c - dlcputc */
        !             2: 
        !             3: #include <conf.h>
        !             4: #include <kernel.h>
        !             5: #include <slu11.h>
        !             6: #include <proc.h>
        !             7: #include <sleep.h>
        !             8: #include <dlc.h>
        !             9: 
        !            10: /*------------------------------------------------------------------------
        !            11:  *  dlcputc  --  write non-blockmode character (used for acks & resets)
        !            12:  *------------------------------------------------------------------------
        !            13:  */
        !            14: dlcputc(devptr, ch)
        !            15: struct devsw   *devptr;
        !            16: char   ch;
        !            17: {
        !            18:        char    ps;
        !            19:        struct  dlblk   *dptr;
        !            20:        struct  csr     *cptr;
        !            21: 
        !            22:        disable(ps);
        !            23:        if ( (dptr = devptr->dvioblk)->dostate != DLOINIT) {
        !            24:                restore(ps);
        !            25:                return(SYSERR);
        !            26:        }
        !            27:        dptr->dochar = ch;
        !            28:        dptr->dovalid = TRUE;
        !            29:        (dptr->dioaddr)->ctstat = SLUENABLE;
        !            30:        restore(ps);
        !            31:        return(OK);
        !            32: }

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