Annotation of coherent/f/usr/include.78/sys/ktty.h.SAVE, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Kernel portion of typewriter structure.
                      3:  */
                      4: #ifndef         KTTY_H
                      5: #define         KTTY_H
                      6: #include <sys/types.h>
                      7: #include <sys/poll.h>
                      8: #include <sys/clist.h>
                      9: #include <sgtty.h>
                     10: #include <sys/timeout.h>
                     11: 
                     12: #define        NCIB    256             /* Input buffer */
                     13: #define        OHILIM  128             /* Output buffer hi water mark */
                     14: #define        OLOLIM  40              /* Output buffer lo water mark */
                     15: #define        IHILIM  512             /* Input buffer hi water mark */
                     16: #define        ILOLIM  40              /* Input buffer lo water mark */
                     17: #define        ITSLIM  (IHILIM-(IHILIM/4))     /* Input buffer tandem stop mark */
                     18: #define        ESC     '\\'            /* Some characters */
                     19: #define        SI_BUFSIZ       256     /* Silo buffer size */
                     20: 
                     21: /*
                     22:  * Raw Character Silo.
                     23:  */
                     24: typedef struct silo {
                     25:        unsigned char   si_ix;
                     26:        unsigned char   si_ox;
                     27:        unsigned char   si_buf[SI_BUFSIZ];
                     28: } silo_t;
                     29: 
                     30: typedef struct tty {
                     31:        CQUEUE  t_oq;           /* Output queue */
                     32:        CQUEUE  t_iq;           /* Input queue */
                     33:        char    *t_ddp;         /* Device specific */
                     34:        int     (*t_start)();   /* Start function */
                     35:        int     (*t_param)();   /* Load parameters function */
                     36:        char    t_dispeed;      /* Default input speed */
                     37:        char    t_dospeed;      /* Default output speed */
                     38:        int     t_open;         /* Open count */
                     39:        int     t_flags;        /* Flags */
                     40:        char    t_nfill;        /* Number of fill characters */
                     41:        char    t_fillb;        /* The fill character */
                     42:        int     t_ibx;          /* Input buffer index */
                     43:        char    t_ib[NCIB];     /* Input buffer */
                     44:        int     t_hpos;         /* Horizontal position */
                     45:        int     t_opos;         /* Original horizontal position */
                     46:        struct  sgttyb t_sgttyb;/* Stty/gtty information */
                     47:        struct  tchars t_tchars;/* Tchars information */
                     48:        int     t_group;        /* Process group */
                     49:        int     t_escape;       /* Pending escape count */
                     50:        event_t t_ipolls;       /* List of input polls enabled on device */
                     51:        event_t t_opolls;       /* List of output polls enabled on device */
                     52:        TIM     t_rawtim;       /* Raw timing struct */
                     53:        silo_t  t_rawin;        /* Raw input buffer  */
                     54:        silo_t  t_rawout;       /* Raw output buffer */
                     55:        int     t_cs_sel;       /* 0 for resident drivers, CS for loadable */
                     56: } TTY;
                     57: 
                     58: /*
                     59:  * Test macros.
                     60:  * Assume `tp' holds a TTY pointer.
                     61:  *       `c'  a character.
                     62:  * Be very careful if you work on the
                     63:  * tty driver that this is true.
                     64:  */
                     65: #define        ISINTR  (tp->t_tchars.t_intrc  == c)
                     66: #define        ISQUIT  (tp->t_tchars.t_quitc  == c)
                     67: #define        ISEOF   (tp->t_tchars.t_eofc   == c)
                     68: #define        ISBRK   (tp->t_tchars.t_brkc   == c)
                     69: #define        ISSTART (tp->t_tchars.t_startc == c)
                     70: #define        ISSTOP  (tp->t_tchars.t_stopc  == c)
                     71: #define        ISCRMOD ((tp->t_sgttyb.sg_flags&CRMOD) != 0)
                     72: #define        ISXTABS ((tp->t_sgttyb.sg_flags&XTABS) != 0)
                     73: #define        ISECHO  ((tp->t_sgttyb.sg_flags&ECHO)  != 0)
                     74: #define        ISERASE (tp->t_sgttyb.sg_erase == c)
                     75: #define        ISKILL  (tp->t_sgttyb.sg_kill  == c)
                     76: #define        stopc   (tp->t_tchars.t_stopc)
                     77: #define        startc  (tp->t_tchars.t_startc)
                     78: 
                     79: /*
                     80:  * The following are not part of S5 sgtty.
                     81:  */
                     82: #define        ISRIN   ((tp->t_sgttyb.sg_flags&RAWIN) != 0)
                     83: #define        ISROUT  ((tp->t_sgttyb.sg_flags&RAWOUT)!= 0)
                     84: #define        ISCRT   ((tp->t_sgttyb.sg_flags&CRT)   != 0)
                     85: #define        ISCBRK  ((tp->t_sgttyb.sg_flags&CBREAK)!= 0)
                     86: #define        ISTAND  ((tp->t_sgttyb.sg_flags&TANDEM)!= 0)
                     87: #define        ISBBYB  ((tp->t_sgttyb.sg_flags&(RAWIN|CBREAK)) != 0)
                     88: 
                     89: #endif

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