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Diffstat (limited to 'board/xilinx/common/xio.h')
-rw-r--r-- | board/xilinx/common/xio.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/board/xilinx/common/xio.h b/board/xilinx/common/xio.h new file mode 100644 index 0000000..5bb09c8 --- /dev/null +++ b/board/xilinx/common/xio.h @@ -0,0 +1,81 @@ +/* + * xio.h + * + * Defines XIo functions for Xilinx OCP in terms of Linux primitives + * + * Author: MontaVista Software, Inc. + * source@mvista.com + * + * Copyright 2002 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef XIO_H +#define XIO_H + +#include "xbasic_types.h" +#include <asm/io.h> + +typedef u32 XIo_Address; + +extern inline u8 +XIo_In8(XIo_Address InAddress) +{ + return (u8) in_8((volatile unsigned char *) InAddress); +} +extern inline u16 +XIo_In16(XIo_Address InAddress) +{ + return (u16) in_be16((volatile unsigned short *) InAddress); +} +extern inline u32 +XIo_In32(XIo_Address InAddress) +{ + return (u32) in_be32((volatile unsigned *) InAddress); +} +extern inline void +XIo_Out8(XIo_Address OutAddress, u8 Value) +{ + out_8((volatile unsigned char *) OutAddress, Value); +} +extern inline void +XIo_Out16(XIo_Address OutAddress, u16 Value) +{ + out_be16((volatile unsigned short *) OutAddress, Value); +} +extern inline void +XIo_Out32(XIo_Address OutAddress, u32 Value) +{ + out_be32((volatile unsigned *) OutAddress, Value); +} + +#define XIo_ToLittleEndian16(s,d) (*(u16*)(d) = cpu_to_le16((u16)(s))) +#define XIo_ToLittleEndian32(s,d) (*(u32*)(d) = cpu_to_le32((u32)(s))) +#define XIo_ToBigEndian16(s,d) (*(u16*)(d) = cpu_to_be16((u16)(s))) +#define XIo_ToBigEndian32(s,d) (*(u32*)(d) = cpu_to_be32((u32)(s))) + +#define XIo_FromLittleEndian16(s,d) (*(u16*)(d) = le16_to_cpu((u16)(s))) +#define XIo_FromLittleEndian32(s,d) (*(u32*)(d) = le32_to_cpu((u32)(s))) +#define XIo_FromBigEndian16(s,d) (*(u16*)(d) = be16_to_cpu((u16)(s))) +#define XIo_FromBigEndian32(s,d) (*(u32*)(d) = be32_to_cpu((u32)(s))) + +#endif /* XIO_H */ |