/*
SIOPORT.C -- Do not compile this file directly.  It is #included by
Z80SIO01+ in order to use the same COMM_PORT decalration in all Z80 SIO
examples.
*/


UARTZ80SIO uz80 = {
    AST + 9,                        /* offset of clock reg. from base       */
    AST + 0XF,                      /* offset of interrupt id. register     */
    X16,                            /* reference clock speed                */
    {0,0,0,0,0,0,0,0}               /* UART virtual write register array    */
};

UART u2;                    /* the UART union */


COMM_PORT z80 = {
    NULL,                           /* ptr. to start of receive buffer      */
    NULL,                           /* ptr. to next available slot in buff  */
    NULL,                           /* ptr. to next slot emptied from buff  */
    NULL,                           /* ptr. to end of receive buffer        */
    NULL,                           /* ptr. to start of TX buffer           */
    NULL,                           /* ptr. to next available slot in buff  */
    NULL,                           /* ptr. to next slot emptied from buff  */
    NULL,                           /* ptr. to end of TX buffer             */
    {NULL, NULL, NULL, NULL},       /* ptr. to interrupt handlers           */
    RUNTIME,                        /* inhold */

    /* FLOW CONTROL LARGE DATA (LD) = 52, SMALL DATA (SD) = 30 */
    FALSE,                          /* flag <=> one or more controls on     */
    FALSE,                          /* flag <=> high level flow cntrl. on   */
    DC1,                            /* XON char (when XON/XOFF enabled)     */
    DC3,                            /* XOFF char (when XON/XOFF enabled)    */
    RUNTIME,                        /* flow ctl. high water mark            */
    RUNTIME,                        /* flow ctl. low water mark             */

    /* UART SPECIFICS */
    AST+3,                          /* base address of 8250 UART         (0)*/
    /* RS-232 INPUTS  LD= 70, SD = 46 */
    RUNTIME,                        /* format 7:DCD, 6:RI, 5: DSR, 4:CTS    */
    RUNTIME,                        /* TX interrupt handler primed          */
    RUNTIME,                        /* TX interrupt handler busy            */
	{0},                            /* address of uart structure            */
    Z80SIO,                         /* type of UART                         */

    uz80_init,                      /* init function */
    AST+1,                          /* offset of data port from base CHB (0)*/
    uz80_rxstat,                    /* UART receiver status register        */
    uz80_txstat,                    /* UART transmitter status register     */
    uz80_read,                      /* pointer to received data read fn.    */
    uz80_write,                     /* pointer to transmited data send fn.  */
    NULL,                           /* address of modem structure           */
    conoutc,                        /* local console output function        */
    NULL,                           /* printer output                       */
    NULL,                           /* buffer output                        */
    NULL,                           /* fn. to restart TX                    */

    /* LINE FORMAT */
    DATABITS8,                      /* RX databits (default)                */
    DATABITS8,                      /* TX databits                          */
    PARITY_NONE,                    /* startup parity                       */
    STOPBITS1,                      /* startup number of stopbits           */
    2400L,                          /* startup baud rate                    */

    /* RS-232 OUTPUTS */
    HIGH,                           /* DTR startup status                   */
    HIGH,                           /* RTS startup status                   */
    LOW,                            /* GPO1 startup status                  */
    LOW,                            /* GPO2 startup status                  */

    /* INTERRUPT-SPECIFIC MEMBERS */
    /* RECEIVE */
    IRQ2_VECTOR,                    /* interrupt request line (or NULL)     */
    2048,                           /* size (in bytes) of receive buffer    */
    2,                              /* IRQ line */

    /* TRANSMIT */
    IRQ2_VECTOR,                    /* interrupt request line (or EOF)      */
    1024,                           /* size (in bytes) of TX buffer         */

    /* RECEIVE DATA FORMAT SPECIFICS */
    FALSE,                          /* flag for input cooked/raw mode       */
    NULL,                           /* pointer to array of translation chars*/
    FALSE,                          /* flag for input end-of-line processing*/
    FALSE,                          /* convert case (UPPER, LOWER, NORMAL)  */
    FALSE,                          /* ASCII chars only (0-127)             */
    40,                             /* time to wait for a byte (ms.)        */
    0,                              /* time to wait after last byte (ms.)   */

    /* TRANSMITTED DATA TRANSFORMATION SPECIFICS */
    FALSE,                          /* flag for output cooked/raw mode      */
    NULL,                           /* pointer to array of translation chars*/
    FALSE,                          /* output end-of-line processing        */
    FALSE,                          /* convert case (UPPER, LOWER, NORMAL)  */
    FALSE,                          /* ASCII chars. only (0-127)            */
    0,                              /* interbyte delay                      */
    0,                              /* delay imposed by delay character     */
    '~',                            /* char. that imposes delay */
    FALSE,                          /* length of interline delay            */
    LF,                             /* interline delay character            */

    RUNTIME,                        /* Echo flag, bit-encoded.              */
    ESCAPE,                         /* abort key for XON/XOFF loops         */
};