hypervisor/src/include/devices/pc16550.h

/*
* ========== Copyright Header Begin ==========================================
*
* Hypervisor Software File: pc16550.h
*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
*  - Do no alter or remove copyright notices
*
*  - Redistribution and use of this software in source and binary forms, with
*    or without modification, are permitted provided that the following
*    conditions are met:
*
*  - Redistribution of source code must retain the above copyright notice,
*    this list of conditions and the following disclaimer.
*
*  - Redistribution in binary form must reproduce the above copyright notice,
*    this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
*    Neither the name of Sun Microsystems, Inc. or the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
*     This software is provided "AS IS," without a warranty of any kind.
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
* OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
* FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or
* intended for use in the design, construction, operation or maintenance of
* any nuclear facility.
*
* ========== Copyright Header End ============================================
*/
/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _PC16550_H
#define _PC16550_H

#pragma ident   "@(#)pc16550.h  1.3     04/07/21 SMI"

/*
 * Hypervisor UART console definitions
 */

#ifdef __cplusplus
extern "C" {
#endif

#define RBR_ADDR        0x0
#define THR_ADDR        0x0
#define IER_ADDR        0x1
#define IIR_ADDR        0x2
#define FCR_ADDR        0x2
#define LCR_ADDR        0x3
#define MCR_ADDR        0x4
#define LSR_ADDR        0x5
#define MSR_ADDR        0x6
#define SCR_ADDR        0x7
#define DLL_ADDR        0x0
#define DLM_ADDR        0x1

/*
 * Some Line Status Register (FCR) bits
 */
#define LSR_DRDY        0x1
#define LSR_BINT        0x10
#define LSR_THRE        0x20
#define LSR_TEMT        0x40

/*
 * Some FIFO Control Register (FCR) bits
 */
#define FCR_FIFO_ENABLE 0x1
#define FCR_RCVR_RESET  0x2
#define FCR_XMIT_RESET  0x4

/*
 * Line Control Register settings
 */
#define LCR_DLAB        0x80
#define LCR_8N1         0x3

/*
 * Baud rate settings for Divisor Latch Low (DLL) and Most (DLM)
 */
#define DLL_9600        0xc
#define DLM_9600        0x0
#endif /* _PC16550_H */