205 lines
6.3 KiB
C
205 lines
6.3 KiB
C
/******************************************************************************
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* Copyright (c) 2014 - 2020 Xilinx, Inc. All rights reserved.
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* SPDX-License-Identifier: MIT
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******************************************************************************/
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/*****************************************************************************/
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/**
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*
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* @file xil_io.h
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*
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* @addtogroup common_io_interfacing_apis Register IO interfacing APIs
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*
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* The xil_io.h file contains the interface for the general I/O component, which
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* encapsulates the Input/Output functions for the processors that do not
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* require any special I/O handling.
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*
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* @{
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* <pre>
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* MODIFICATION HISTORY:
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*
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* Ver Who Date Changes
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* ----- -------- -------- -----------------------------------------------
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* 5.00 pkp 05/29/14 First release
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* 6.00 mus 08/19/16 Remove checking of __LITTLE_ENDIAN__ flag for
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* ARM processors
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* 7.20 har 01/03/20 Added Xil_SecureOut32 for avoiding blindwrite for
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* CR-1049218
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* </pre>
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******************************************************************************/
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#ifndef XIL_IO_H /* prevent circular inclusions */
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#define XIL_IO_H /* by using protection macros */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/***************************** Include Files *********************************/
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#include "xil_types.h"
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#include "xil_printf.h"
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#include "xstatus.h"
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#if defined (__GNUC__) || defined (__ICCARM__) || defined (__MICROBLAZE__)
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#define INLINE inline
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#else
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#define INLINE __inline
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#endif
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/*****************************************************************************/
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/**
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*
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* @brief Performs an input operation for a memory location by reading
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* from the specified address and returning the 8 bit Value read from
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* that address.
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*
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* @param Addr: contains the address to perform the input operation
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*
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* @return The 8 bit Value read from the specified input address.
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*
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******************************************************************************/
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static INLINE u8 Xil_In8(UINTPTR Addr)
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{
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return *(volatile u8 *) Addr;
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}
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/*****************************************************************************/
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/**
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*
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* @brief Performs an input operation for a memory location by reading from
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* the specified address and returning the 16 bit Value read from that
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* address.
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*
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* @param Addr: contains the address to perform the input operation
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*
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* @return The 16 bit Value read from the specified input address.
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*
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******************************************************************************/
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static INLINE u16 Xil_In16(UINTPTR Addr)
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{
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return *(volatile u16 *) Addr;
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}
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/*****************************************************************************/
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/**
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*
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* @brief Performs an input operation for a memory location by
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* reading from the specified address and returning the 32 bit Value
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* read from that address.
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*
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* @param Addr: contains the address to perform the input operation
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*
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* @return The 32 bit Value read from the specified input address.
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*
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******************************************************************************/
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static INLINE u32 Xil_In32(UINTPTR Addr)
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{
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return *(volatile u32 *) Addr;
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}
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/*****************************************************************************/
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/**
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*
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* @brief Performs an input operation for a memory location by reading the
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* 64 bit Value read from that address.
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*
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*
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* @param Addr: contains the address to perform the input operation
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*
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* @return The 64 bit Value read from the specified input address.
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*
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******************************************************************************/
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static INLINE u64 Xil_In64(UINTPTR Addr)
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{
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return *(volatile u64 *) Addr;
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}
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/*****************************************************************************/
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/**
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*
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* @brief Performs an output operation for an memory location by
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* writing the 8 bit Value to the the specified address.
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*
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* @param Addr: contains the address to perform the output operation
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* @param Value: contains the 8 bit Value to be written at the specified
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* address.
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*
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* @return None.
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*
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******************************************************************************/
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static INLINE void Xil_Out8(UINTPTR Addr, u8 Value)
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{
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volatile u8 *LocalAddr = (volatile u8 *)Addr;
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*LocalAddr = Value;
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}
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/*****************************************************************************/
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/**
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*
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* @brief Performs an output operation for a memory location by writing the
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* 16 bit Value to the the specified address.
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*
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* @param Addr contains the address to perform the output operation
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* @param Value contains the Value to be written at the specified address.
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*
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* @return None.
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*
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******************************************************************************/
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static INLINE void Xil_Out16(UINTPTR Addr, u16 Value)
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{
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volatile u16 *LocalAddr = (volatile u16 *)Addr;
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*LocalAddr = Value;
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}
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/*****************************************************************************/
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/**
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*
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* @brief Performs an output operation for a memory location by writing the
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* 32 bit Value to the the specified address.
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*
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* @param Addr contains the address to perform the output operation
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* @param Value contains the 32 bit Value to be written at the specified
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* address.
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*
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* @return None.
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*
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******************************************************************************/
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static INLINE void Xil_Out32(UINTPTR Addr, u32 Value)
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{
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#ifndef ENABLE_SAFETY
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volatile u32 *LocalAddr = (volatile u32 *)Addr;
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*LocalAddr = Value;
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#else
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XStl_RegUpdate(Addr, Value);
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#endif
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}
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/*****************************************************************************/
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/**
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*
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* @brief Performs an output operation for a memory location by writing the
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* 64 bit Value to the the specified address.
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*
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* @param Addr contains the address to perform the output operation
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* @param Value contains 64 bit Value to be written at the specified address.
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*
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* @return None.
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*
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******************************************************************************/
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static INLINE void Xil_Out64(UINTPTR Addr, u64 Value)
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{
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volatile u64 *LocalAddr = (volatile u64 *)Addr;
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*LocalAddr = Value;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* end of protection macro */
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/**
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* @} End of "addtogroup common_io_interfacing_apis".
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*/
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