wdenk | 507bbe3 | 2004-04-18 21:13:41 +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 | * 2002 (c) MontaVista, Software, Inc. This file is licensed under the terms |
| 10 | * of the GNU General Public License version 2. This program is licensed |
| 11 | * "as is" without any warranty of any kind, whether express or implied. |
| 12 | */ |
| 13 | |
| 14 | #ifndef XIO_H |
| 15 | #define XIO_H |
| 16 | |
| 17 | #include "xbasic_types.h" |
| 18 | #include <asm/io.h> |
| 19 | |
| 20 | typedef u32 XIo_Address; |
| 21 | |
| 22 | extern inline u8 |
| 23 | XIo_In8(XIo_Address InAddress) |
| 24 | { |
| 25 | return (u8) in_8((volatile unsigned char *) InAddress); |
| 26 | } |
| 27 | extern inline u16 |
| 28 | XIo_In16(XIo_Address InAddress) |
| 29 | { |
| 30 | return (u16) in_be16((volatile unsigned short *) InAddress); |
| 31 | } |
| 32 | extern inline u32 |
| 33 | XIo_In32(XIo_Address InAddress) |
| 34 | { |
| 35 | return (u32) in_be32((volatile unsigned *) InAddress); |
| 36 | } |
| 37 | extern inline void |
| 38 | XIo_Out8(XIo_Address OutAddress, u8 Value) |
| 39 | { |
| 40 | out_8((volatile unsigned char *) OutAddress, Value); |
| 41 | } |
| 42 | extern inline void |
| 43 | XIo_Out16(XIo_Address OutAddress, u16 Value) |
| 44 | { |
| 45 | out_be16((volatile unsigned short *) OutAddress, Value); |
| 46 | } |
| 47 | extern inline void |
| 48 | XIo_Out32(XIo_Address OutAddress, u32 Value) |
| 49 | { |
| 50 | out_be32((volatile unsigned *) OutAddress, Value); |
| 51 | } |
| 52 | |
| 53 | #define XIo_ToLittleEndian16(s,d) (*(u16*)(d) = cpu_to_le16((u16)(s))) |
| 54 | #define XIo_ToLittleEndian32(s,d) (*(u32*)(d) = cpu_to_le32((u32)(s))) |
| 55 | #define XIo_ToBigEndian16(s,d) (*(u16*)(d) = cpu_to_be16((u16)(s))) |
| 56 | #define XIo_ToBigEndian32(s,d) (*(u32*)(d) = cpu_to_be32((u32)(s))) |
| 57 | |
| 58 | #define XIo_FromLittleEndian16(s,d) (*(u16*)(d) = le16_to_cpu((u16)(s))) |
| 59 | #define XIo_FromLittleEndian32(s,d) (*(u32*)(d) = le32_to_cpu((u32)(s))) |
| 60 | #define XIo_FromBigEndian16(s,d) (*(u16*)(d) = be16_to_cpu((u16)(s))) |
| 61 | #define XIo_FromBigEndian32(s,d) (*(u32*)(d) = be32_to_cpu((u32)(s))) |
| 62 | |
| 63 | #endif /* XIO_H */ |