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/* cmb-outbyte.c -- outbyte function for CMB1200 eval board.

 *

 * Copyright (c) 1999 Cygnus Support

 *

 * The authors hereby grant permission to use, copy, modify, distribute,

 * and license this software and its documentation for any purpose, provided

 * that existing copyright notices are retained in all copies and that this

 * notice is included verbatim in any distributions. No written agreement,

 * license, or royalty fee is required for any of the authorized uses.

 * Modifications to this software may be copyrighted by their authors

 * and need not follow the licensing terms described here, provided that

 * the new terms are clearly indicated on the first page of each file where

 * they apply.

 */

#include <_ansi.h>

#define _TX  0x40

#define _SR  0x86

#define UART0_BASE 0x10009000

#define UART1_BASE 0x1000a000

#define UART_BASE UART0_BASE

#define TXREG ((volatile unsigned short *)(UART_BASE + _TX))

#define SRREG ((volatile unsigned short *)(UART_BASE + _SR))

#define TRDY  0x2000

#define GDB_QUOTE_CHAR 15  /* ^O */

/*

 * outbyte -- send a byte to the UART.

 */

void

_DEFUN (outbyte, (ch),

        char ch)

{

    while (!(*SRREG & TRDY))

        ;

    *TXREG = GDB_QUOTE_CHAR;

    while (!(*SRREG & TRDY))

        ;

    *TXREG = (unsigned short)ch;

}