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63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/*
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* xio.h
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*
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* Defines XIo functions for Xilinx OCP in terms of Linux primitives
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*
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* Author: MontaVista Software, Inc.
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* source@mvista.com
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*
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* 2002 (c) MontaVista, Software, Inc. This file is licensed under the terms
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* of the GNU General Public License version 2. This program is licensed
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* "as is" without any warranty of any kind, whether express or implied.
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*/
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#ifndef XIO_H
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#define XIO_H
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#include "xbasic_types.h"
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#include <asm/io.h>
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typedef u32 XIo_Address;
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extern inline u8
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XIo_In8(XIo_Address InAddress)
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{
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return (u8) in_8((volatile unsigned char *) InAddress);
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}
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extern inline u16
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XIo_In16(XIo_Address InAddress)
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{
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return (u16) in_be16((volatile unsigned short *) InAddress);
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}
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extern inline u32
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XIo_In32(XIo_Address InAddress)
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{
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return (u32) in_be32((volatile unsigned *) InAddress);
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}
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extern inline void
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XIo_Out8(XIo_Address OutAddress, u8 Value)
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{
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out_8((volatile unsigned char *) OutAddress, Value);
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}
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extern inline void
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XIo_Out16(XIo_Address OutAddress, u16 Value)
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{
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out_be16((volatile unsigned short *) OutAddress, Value);
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}
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extern inline void
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XIo_Out32(XIo_Address OutAddress, u32 Value)
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{
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out_be32((volatile unsigned *) OutAddress, Value);
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}
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#define XIo_ToLittleEndian16(s,d) (*(u16*)(d) = cpu_to_le16((u16)(s)))
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#define XIo_ToLittleEndian32(s,d) (*(u32*)(d) = cpu_to_le32((u32)(s)))
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#define XIo_ToBigEndian16(s,d) (*(u16*)(d) = cpu_to_be16((u16)(s)))
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#define XIo_ToBigEndian32(s,d) (*(u32*)(d) = cpu_to_be32((u32)(s)))
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#define XIo_FromLittleEndian16(s,d) (*(u16*)(d) = le16_to_cpu((u16)(s)))
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#define XIo_FromLittleEndian32(s,d) (*(u32*)(d) = le32_to_cpu((u32)(s)))
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#define XIo_FromBigEndian16(s,d) (*(u16*)(d) = be16_to_cpu((u16)(s)))
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#define XIo_FromBigEndian32(s,d) (*(u32*)(d) = be32_to_cpu((u32)(s)))
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#endif /* XIO_H */
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