| wdenk | e537b3b | 2004-02-23 23:54:43 +0000 | [diff] [blame] | 1 | /* |
| 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 | |
| 38 | typedef u32 XIo_Address; |
| 39 | |
| 40 | extern inline u8 |
| 41 | XIo_In8(XIo_Address InAddress) |
| 42 | { |
| 43 | return (u8) in_8((volatile unsigned char *) InAddress); |
| 44 | } |
| 45 | extern inline u16 |
| 46 | XIo_In16(XIo_Address InAddress) |
| 47 | { |
| 48 | return (u16) in_be16((volatile unsigned short *) InAddress); |
| 49 | } |
| 50 | extern inline u32 |
| 51 | XIo_In32(XIo_Address InAddress) |
| 52 | { |
| 53 | return (u32) in_be32((volatile unsigned *) InAddress); |
| 54 | } |
| 55 | extern inline void |
| 56 | XIo_Out8(XIo_Address OutAddress, u8 Value) |
| 57 | { |
| 58 | out_8((volatile unsigned char *) OutAddress, Value); |
| 59 | } |
| 60 | extern inline void |
| 61 | XIo_Out16(XIo_Address OutAddress, u16 Value) |
| 62 | { |
| 63 | out_be16((volatile unsigned short *) OutAddress, Value); |
| 64 | } |
| 65 | extern inline void |
| 66 | XIo_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 */ |