/* $Id: xuartlite_l.c,v 1.1.2.1 2009/11/24 05:14:30 svemula Exp $ */
/******************************************************************************
*
* (c) Copyright 2002-2009 Xilinx, Inc. All rights reserved.
*
* This file contains confidential and proprietary information of Xilinx, Inc.
* and is protected under U.S. and international copyright and other
* intellectual property laws.
*
* DISCLAIMER
* This disclaimer is not a license and does not grant any rights to the
* materials distributed herewith. Except as otherwise provided in a valid
* license issued to you by Xilinx, and to the maximum extent permitted by
* applicable law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND WITH ALL
* FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS, EXPRESS,
* IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
* MERCHANTABILITY, NON-INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE;
* and (2) Xilinx shall not be liable (whether in contract or tort, including
* negligence, or under any other theory of liability) for any loss or damage
* of any kind or nature related to, arising under or in connection with these
* materials, including for any direct, or any indirect, special, incidental,
* or consequential loss or damage (including loss of data, profits, goodwill,
* or any type of loss or damage suffered as a result of any action brought by
* a third party) even if such damage or loss was reasonably foreseeable or
* Xilinx had been advised of the possibility of the same.
*
* CRITICAL APPLICATIONS
* Xilinx products are not designed or intended to be fail-safe, or for use in
* any application requiring fail-safe performance, such as life-support or
* safety devices or systems, Class III medical devices, nuclear facilities,
* applications related to the deployment of airbags, or any other applications
* that could lead to death, personal injury, or severe property or
* environmental damage (individually and collectively, "Critical
* Applications"). Customer assumes the sole risk and liability of any use of
* Xilinx products in Critical Applications, subject only to applicable laws
* and regulations governing limitations on product liability.
*
* THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS PART OF THIS FILE
* AT ALL TIMES.
*
******************************************************************************/
/****************************************************************************/
/**
*
* @file xuartlite_l.c
*
* This file contains low-level driver functions that can be used to access the
* device.  The user should refer to the hardware device specification for more
* details of the device operation.

* <pre>
* MODIFICATION HISTORY:
*
* Ver   Who  Date     Changes
* ----- ---- -------- -----------------------------------------------
* 1.00b rpm  04/25/02 First release
* 1.12a rpm  07/16/07 Fixed arg type for RecvByte
* 2.00a ktn  10/20/09 The macros have been renamed to remove _m from the name.
* </pre>
*
******************************************************************************/

/***************************** Include Files *********************************/

#include "xuartlite_l.h"

/************************** Constant Definitions *****************************/


/**************************** Type Definitions *******************************/


/***************** Macros (Inline Functions) Definitions *********************/


/************************** Function Prototypes ******************************/


/************************** Variable Prototypes ******************************/


/****************************************************************************/
/**
*
* This functions sends a single byte using the UART. It is blocking in that it
* waits for the transmitter to become non-full before it writes the byte to
* the transmit register.
*
* @param	BaseAddress is the base address of the device
* @param	Data is the byte of data to send
*
* @return	None.
*
* @note		None.
*
******************************************************************************/
void XUartLite_SendByte(u32 BaseAddress, u8 Data)
{
	while (XUartLite_IsTransmitFull(BaseAddress));

	XUartLite_WriteReg(BaseAddress, XUL_TX_FIFO_OFFSET, Data);
}


/****************************************************************************/
/**
*
* This functions receives a single byte using the UART. It is blocking in that
* it waits for the receiver to become non-empty before it reads from the
* receive register.
*
* @param	BaseAddress is the base address of the device
*
* @return	The byte of data received.
*
* @note		None.
*
******************************************************************************/
u8 XUartLite_RecvByte(u32 BaseAddress)
{
	while (XUartLite_IsReceiveEmpty(BaseAddress));

	return (u8)XUartLite_ReadReg(BaseAddress, XUL_RX_FIFO_OFFSET);
}