| 0,0 → 1,55 |
|---|
| /* |
| * The PCI Library -- System-Dependent Stuff |
| * |
| * Copyright (c) 1997--2004 Martin Mares <mj@ucw.cz> |
| * |
| * May 8, 2006 - Modified and ported to HelenOS by Jakub Jermar. |
| * |
| * Can be freely distributed and used under the terms of the GNU GPL. |
| */ |
| |
| #ifdef __GNUC__ |
| #define UNUSED __attribute__((unused)) |
| #define NONRET __attribute__((noreturn)) |
| #else |
| #define UNUSED |
| #define NONRET |
| #define inline |
| #endif |
| |
| typedef u8 byte; |
| typedef u16 word; |
| |
| static inline void swap(u8 *x, u8 *y) |
| { |
| u8 z = *x; |
| *x = *y; |
| *y = z; |
| } |
| |
| static inline u16 invert_endianess_16(u16 x) |
| { |
| u8 *px = (u8 *)&x; |
| swap(&px[0], &px[1]); |
| return x; |
| } |
| |
| static inline u32 invert_endianess_32(u32 x) |
| { |
| u8 *px = (u8 *)&x; |
| swap(&px[0], &px[3]); |
| swap(&px[1], &px[2]); |
| return x; |
| } |
| |
| #ifdef UARCH_sparc64 |
| #define cpu_to_le16(x) (invert_endianess_16(x)) |
| #define cpu_to_le32(x) (invert_endianess_32(x)) |
| #define le16_to_cpu(x) (invert_endianess_16(x)) |
| #define le32_to_cpu(x) (invert_endianess_32(x)) |
| #else |
| #define cpu_to_le16(x) (x) |
| #define cpu_to_le32(x) (x) |
| #define le16_to_cpu(x) (x) |
| #define le32_to_cpu(x) (x) |
| #endif |