Annotation of coherent/d/PS2_KERNEL/include/sys/ktty.h, 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: #ifdef _I386
                     11: #include <termio.h>
                     12: #endif
                     13: #include <sys/timeout.h>
                     14: 
                     15: #define        NCIB    256             /* Input buffer */
                     16: #define        OHILIM  128             /* Output buffer hi water mark */
                     17: #define        OLOLIM  40              /* Output buffer lo water mark */
                     18: #define        IHILIM  512             /* Input buffer hi water mark */
                     19: #define        ILOLIM  40              /* Input buffer lo water mark */
                     20: #define        ITSLIM  (IHILIM-(IHILIM/4))     /* Input buffer tandem stop mark */
                     21: #define        ESC     '\\'            /* Some characters */
                     22: 
                     23: typedef struct tty {
                     24:        CQUEUE  t_oq;           /* Output queue */
                     25:        CQUEUE  t_iq;           /* Input queue */
                     26:        char    *t_ddp;         /* Device specific */
                     27:        int     (*t_start)();   /* Start function */
                     28:        int     (*t_param)();   /* Load parameters function */
                     29:        char    t_dispeed;      /* Default input speed */
                     30:        char    t_dospeed;      /* Default output speed */
                     31:        int     t_open;         /* Open count */
                     32:        int     t_flags;        /* Flags */
                     33:        char    t_nfill;        /* Number of fill characters */
                     34:        char    t_fillb;        /* The fill character */
                     35:        int     t_ibx;          /* Input buffer index */
                     36:        char    t_ib[NCIB];     /* Input buffer */
                     37:        int     t_hpos;         /* Horizontal position */
                     38:        int     t_opos;         /* Original horizontal position */
                     39:        struct  sgttyb t_sgttyb;/* Stty/gtty information */
                     40:        struct  tchars t_tchars;/* Tchars information */
                     41: #ifdef _I386
                     42:        struct  termio t_termio;
                     43: #endif
                     44:        int     t_group;        /* Process group */
                     45:        int     t_escape;       /* Pending escape count */
                     46:        event_t t_ipolls;       /* List of input polls enabled on device */
                     47:        event_t t_opolls;       /* List of output polls enabled on device */
                     48:        TIM     t_rawtim;       /* Raw timing struct */
                     49:        int     t_cs_sel;       /* 0 for resident drivers, CS for loadable */
                     50: } TTY;
                     51: 
                     52: /*
                     53:  * Test macros.
                     54:  * Assume `tp' holds a TTY pointer.
                     55:  *       `c'  a character.
                     56:  * Be very careful if you work on the
                     57:  * tty driver that this is true.
                     58:  */
                     59: #define        ISINTR  (tp->t_tchars.t_intrc  == c)
                     60: #define        ISQUIT  (tp->t_tchars.t_quitc  == c)
                     61: #define        ISEOF   (tp->t_tchars.t_eofc   == c)
                     62: #define        ISBRK   (tp->t_tchars.t_brkc   == c)
                     63: #define        ISSTART (tp->t_tchars.t_startc == c)
                     64: #define        ISSTOP  (tp->t_tchars.t_stopc  == c)
                     65: #define        ISCRMOD ((tp->t_sgttyb.sg_flags&CRMOD) != 0)
                     66: #define        ISXTABS ((tp->t_sgttyb.sg_flags&XTABS) != 0)
                     67: #define        ISECHO  ((tp->t_sgttyb.sg_flags&ECHO)  != 0)
                     68: #define        ISERASE (tp->t_sgttyb.sg_erase == c)
                     69: #define        ISKILL  (tp->t_sgttyb.sg_kill  == c)
                     70: #define        stopc   (tp->t_tchars.t_stopc)
                     71: #define        startc  (tp->t_tchars.t_startc)
                     72: 
                     73: /*
                     74:  * The following are not part of S5 sgtty.
                     75:  */
                     76: #define        ISRIN   ((tp->t_sgttyb.sg_flags&RAWIN) != 0)
                     77: #define        ISROUT  ((tp->t_sgttyb.sg_flags&RAWOUT)!= 0)
                     78: #define        ISCRT   ((tp->t_sgttyb.sg_flags&CRT)   != 0)
                     79: #define        ISCBRK  ((tp->t_sgttyb.sg_flags&CBREAK)!= 0)
                     80: #define        ISTAND  ((tp->t_sgttyb.sg_flags&TANDEM)!= 0)
                     81: #define        ISBBYB  ((tp->t_sgttyb.sg_flags&(RAWIN|CBREAK)) != 0)
                     82: 
                     83: #endif

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