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wdenk028ab6b2004-02-23 23:54:43 +00001/*
2 * xio.h
3 *
4 * Defines XIo functions for Xilinx OCP in terms of Linux primitives
5 *
6 * Author: MontaVista Software, Inc.
7 * source@mvista.com
8 *
9 * Copyright 2002 MontaVista Software Inc.
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 *
16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
24 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
25 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * You should have received a copy of the GNU General Public License along
28 * with this program; if not, write to the Free Software Foundation, Inc.,
29 * 675 Mass Ave, Cambridge, MA 02139, USA.
30 */
31
32#ifndef XIO_H
33#define XIO_H
34
35#include "xbasic_types.h"
36#include <asm/io.h>
37
38typedef u32 XIo_Address;
39
40extern inline u8
41XIo_In8(XIo_Address InAddress)
42{
43 return (u8) in_8((volatile unsigned char *) InAddress);
44}
45extern inline u16
46XIo_In16(XIo_Address InAddress)
47{
48 return (u16) in_be16((volatile unsigned short *) InAddress);
49}
50extern inline u32
51XIo_In32(XIo_Address InAddress)
52{
53 return (u32) in_be32((volatile unsigned *) InAddress);
54}
55extern inline void
56XIo_Out8(XIo_Address OutAddress, u8 Value)
57{
58 out_8((volatile unsigned char *) OutAddress, Value);
59}
60extern inline void
61XIo_Out16(XIo_Address OutAddress, u16 Value)
62{
63 out_be16((volatile unsigned short *) OutAddress, Value);
64}
65extern inline void
66XIo_Out32(XIo_Address OutAddress, u32 Value)
67{
68 out_be32((volatile unsigned *) OutAddress, Value);
69}
70
71#define XIo_ToLittleEndian16(s,d) (*(u16*)(d) = cpu_to_le16((u16)(s)))
72#define XIo_ToLittleEndian32(s,d) (*(u32*)(d) = cpu_to_le32((u32)(s)))
73#define XIo_ToBigEndian16(s,d) (*(u16*)(d) = cpu_to_be16((u16)(s)))
74#define XIo_ToBigEndian32(s,d) (*(u32*)(d) = cpu_to_be32((u32)(s)))
75
76#define XIo_FromLittleEndian16(s,d) (*(u16*)(d) = le16_to_cpu((u16)(s)))
77#define XIo_FromLittleEndian32(s,d) (*(u32*)(d) = le32_to_cpu((u32)(s)))
78#define XIo_FromBigEndian16(s,d) (*(u16*)(d) = be16_to_cpu((u16)(s)))
79#define XIo_FromBigEndian32(s,d) (*(u32*)(d) = be32_to_cpu((u32)(s)))
80
81#endif /* XIO_H */