/*
Copyright (C) Magna Carta Software, Inc. 1990, 1991.  All Rights Reserved.
C COMMUNICATIONS TOOLKIT.
DATAFORM.C -- Serial data format routines.
Note: General purpose U(S)ART routines are in the source file for the chip
to which they apply.
*/


#include <ccttype.h>
#include <cctdef.h>



short get_databits(COMM_PORT *p)
{
    return((*p->get)(p, DATABITS));
}


short get_loopback(COMM_PORT *p)
{
    return((*p->get)(p, LOOPBACK));
}



short get_parity(COMM_PORT *p)
{
    return((*p->get)(p, PARITY));
}



/*
GET_SPEED -- Get the data rate (bps).
*/
long get_speed(COMM_PORT *p)
{
    return((*p->get_speed)(p));
}



short get_stopbits(COMM_PORT *p)
{
    return((*p->get)(p, STOPBITS));
}



short set_databits(COMM_PORT *p, short value)
{
    p->rxdatabits = value;

    return((*p->set)(p, DATABITS, value));
}


/*
SET_LOOPBACK -- Set the state of U(S)ART loopback.
Return values:
    0   -- success;
    -1  -- failure;
*/
short set_loopback(COMM_PORT *p, short value)
{
    return((*p->set)(p, LOOPBACK, value));
}


/*
SET_PARITY -- Set the parity for the designated serial port to the designated
value.  The type of UART is obtained from the COMM_PORT structure.
Return values:
    Success: The value of the UART register that sets parity;
    -1     : Invalid UART type;
    -2     : Invalid parity value specified;
*/
short set_parity(COMM_PORT *p, short value)
{
    p->parity = value;
    (*p->set)(p, PARITY, value);

    return (0);
}



/*
SET_SPEED -- Set the data rate (bps).
*/
short set_speed(COMM_PORT *p, long value)
{
    p->speed = value;

    return((*p->set_speed)(p, value));
}



/*
SET_STOPBITS -- Set the number of stopbits for the designated serial port
to the designated value.  The type of UART is obtained from the COMM_PORT
structure.
Return values:
    Success: The value of the UART register that sets stopbits;
    -1     : Invalid UART type;
    -2     : Invalid number of stopbits specified;
*/
short set_stopbits(COMM_PORT *p, short value)
{
    p->stopbits = value;

    return((*p->set)(p, STOPBITS, value));
}