| /* | |
| * This file is subject to the terms and conditions of the GNU General Public | |
| * License. See the file "COPYING" in the main directory of this archive | |
| * for more details. | |
| * | |
| * Copyright (C) 2003, 2004 Ralf Baechle | |
| */ | |
| #ifndef __ASM_MACH_GENERIC_MANGLE_PORT_H | |
| #define __ASM_MACH_GENERIC_MANGLE_PORT_H | |
| #define __swizzle_addr_b(port) (port) | |
| #define __swizzle_addr_w(port) (port) | |
| #define __swizzle_addr_l(port) (port) | |
| #define __swizzle_addr_q(port) (port) | |
| /* | |
| * Sane hardware offers swapping of PCI/ISA I/O space accesses in hardware; | |
| * less sane hardware forces software to fiddle with this... | |
| * | |
| * Regardless, if the host bus endianness mismatches that of PCI/ISA, then | |
| * you can't have the numerical value of data and byte addresses within | |
| * multibyte quantities both preserved at the same time. Hence two | |
| * variations of functions: non-prefixed ones that preserve the value | |
| * and prefixed ones that preserve byte addresses. The latters are | |
| * typically used for moving raw data between a peripheral and memory (cf. | |
| * string I/O functions), hence the "__mem_" prefix. | |
| */ | |
| #if defined(CONFIG_SWAP_IO_SPACE) | |
| # define ioswabb(a, x) (x) | |
| # define __mem_ioswabb(a, x) (x) | |
| # define ioswabw(a, x) le16_to_cpu(x) | |
| # define __mem_ioswabw(a, x) (x) | |
| # define ioswabl(a, x) le32_to_cpu(x) | |
| # define __mem_ioswabl(a, x) (x) | |
| # define ioswabq(a, x) le64_to_cpu(x) | |
| # define __mem_ioswabq(a, x) (x) | |
| #else | |
| # define ioswabb(a, x) (x) | |
| # define __mem_ioswabb(a, x) (x) | |
| # define ioswabw(a, x) (x) | |
| # define __mem_ioswabw(a, x) cpu_to_le16(x) | |
| # define ioswabl(a, x) (x) | |
| # define __mem_ioswabl(a, x) cpu_to_le32(x) | |
| # define ioswabq(a, x) (x) | |
| # define __mem_ioswabq(a, x) cpu_to_le32(x) | |
| #endif | |
| #endif /* __ASM_MACH_GENERIC_MANGLE_PORT_H */ |