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Annotation of xinu/sys/dlcputc.c, revision 1.1.1.1

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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