76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
/*
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* Copyright : (C) 2022 Phytium Information Technology, Inc.
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* All Rights Reserved.
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*
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* This program is OPEN SOURCE software: you can redistribute it and/or modify it
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* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
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* either version 1.0 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the Phytium Public License for more details.
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*
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*
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* FilePath: fpl011_hw.c
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* Date: 2021-11-02 14:53:42
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* LastEditTime: 2022-02-18 09:05:56
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* Description: This file is for uart register function
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*
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* Modify History:
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* Ver Who Date Changes
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* ----- ------ -------- --------------------------------------
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* 1.0 huanghe 2021/11/2 first commit
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* 1.1 liushengming 2022/02/18 add file head
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*/
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/***************************** Include Files *********************************/
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#include "fpl011_hw.h"
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/************************** Constant Definitions *****************************/
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/**************************** Type Definitions *******************************/
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/************************** Variable Definitions *****************************/
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/***************** Macros (Inline Functions) Definitions *********************/
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/************************** Function Prototypes ******************************/
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/**
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* @name: FPl011SendByte
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* @msg: This function sends one byte using the device.This function operates in polled mode and blocks
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* until the data has been put into the TX FIFO register.
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* @param addr contains the base address of the device.
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* @param Byte contains the byte to be sent.
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*/
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void FPl011SendByte(uintptr addr, u8 byte)
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{
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while (FUART_ISTRANSMITFULL(addr))
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{
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;
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}
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FUART_WRITEREG32(addr, FPL011DR_OFFSET, (u32)byte);
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}
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/**
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* @name: FPl011RecvByte
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* @msg: This function receives a byte from the device. It operates in polled mode
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* and blocks until a byte has received.
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* @param addr contains the base address of the device.
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*/
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u8 FPl011RecvByte(uintptr addr)
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{
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u32 recieved_byte;
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while (FUART_RECEIVEDATAEMPTY(addr))
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{
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;
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}
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recieved_byte = FUART_READREG32(addr, FPL011DR_OFFSET);
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return recieved_byte;
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}
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