| /****************************************************************************** |
| * |
| * Copyright (C) 2002 - 2015 Xilinx, Inc. All rights reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * Use of the Software is limited solely to applications: |
| * (a) running on a Xilinx device, or |
| * (b) that interact with a Xilinx device through a bus or interconnect. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| * Except as contained in this notice, the name of the Xilinx shall not be used |
| * in advertising or otherwise to promote the sale, use or other dealings in |
| * this Software without prior written authorization from Xilinx. |
| * |
| ******************************************************************************/ |
| /****************************************************************************/ |
| /** |
| * |
| * @file xuartlite_l.c |
| * @addtogroup uartlite_v3_1 |
| * @{ |
| * |
| * 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. |
| * 3.2 sk 11/10/15 Used UINTPTR instead of u32 for Baseaddress CR# 867425. |
| * Changed the prototypes of XUartLite_SendByte, |
| * XUartLite_RecvByte APIs. |
| * </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(UINTPTR 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(UINTPTR BaseAddress) |
| { |
| while (XUartLite_IsReceiveEmpty(BaseAddress)); |
| |
| return (u8)XUartLite_ReadReg(BaseAddress, XUL_RX_FIFO_OFFSET); |
| } |
| |
| /** @} */ |