| /* |
| * Originally imported from linux/include/asm-arm/io.h. This file has changed |
| * substantially since then. |
| * |
| * Copyright 2013 Google Inc. |
| * Copyright (C) 1996-2000 Russell King |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * Modifications: |
| * 08-Apr-2013 G Replaced several macros with inlines for type safety. |
| * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both |
| * constant addresses and variable addresses. |
| * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture |
| * specific IO header files. |
| * 27-Mar-1999 PJB Second parameter of memcpy_toio is const.. |
| * 04-Apr-1999 PJB Added check_signature. |
| * 12-Dec-1999 RMK More cleanups |
| * 18-Jun-2000 RMK Removed virt_to_* and friends definitions |
| */ |
| #ifndef __ASM_ARM_IO_H |
| #define __ASM_ARM_IO_H |
| |
| #include <arch/byteorder.h> |
| #include <arch/arch_io.h> |
| #include <stdint.h> |
| |
| /* |
| * FIXME: These are to avoid breaking existing ARM code. We should eventually |
| * re-factor all code to specify the data length intended. |
| */ |
| #define readb(a) read8(a) |
| #define writeb(v,a) write8(v,a) |
| #define readl(a) read32(a) |
| #define writel(v,a) write32(v,a) |
| |
| /* |
| * Clear and set bits in one shot. These macros can be used to clear and |
| * set multiple bits in a register using a single call. These macros can |
| * also be used to set a multiple-bit bit pattern using a mask, by |
| * specifying the mask in the 'clear' parameter and the new bit pattern |
| * in the 'set' parameter. |
| */ |
| |
| #define out_arch(type,endian,a,v) write##type(cpu_to_##endian(v),a) |
| #define in_arch(type,endian,a) endian##_to_cpu(read##type(a)) |
| |
| #define out_le32(a,v) out_arch(l,le32,a,v) |
| #define out_le16(a,v) out_arch(w,le16,a,v) |
| |
| #define in_le32(a) in_arch(l,le32,a) |
| #define in_le16(a) in_arch(w,le16,a) |
| |
| #define out_be32(a,v) out_arch(l,be32,a,v) |
| #define out_be16(a,v) out_arch(w,be16,a,v) |
| |
| #define in_be32(a) in_arch(l,be32,a) |
| #define in_be16(a) in_arch(w,be16,a) |
| |
| #define out_8(a,v) writeb(v,a) |
| #define in_8(a) readb(a) |
| |
| #define clrbits(type, addr, clear) \ |
| out_##type((addr), in_##type(addr) & ~(clear)) |
| |
| #define setbits(type, addr, set) \ |
| out_##type((addr), in_##type(addr) | (set)) |
| |
| #define clrsetbits(type, addr, clear, set) \ |
| out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) |
| |
| #define clrbits_be32(addr, clear) clrbits(be32, addr, clear) |
| #define setbits_be32(addr, set) setbits(be32, addr, set) |
| #define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) |
| |
| #define clrbits_le32(addr, clear) clrbits(le32, addr, clear) |
| #define setbits_le32(addr, set) setbits(le32, addr, set) |
| #define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) |
| |
| #define clrbits_be16(addr, clear) clrbits(be16, addr, clear) |
| #define setbits_be16(addr, set) setbits(be16, addr, set) |
| #define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) |
| |
| #define clrbits_le16(addr, clear) clrbits(le16, addr, clear) |
| #define setbits_le16(addr, set) setbits(le16, addr, set) |
| #define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) |
| |
| #define clrbits_8(addr, clear) clrbits(8, addr, clear) |
| #define setbits_8(addr, set) setbits(8, addr, set) |
| #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) |
| |
| #endif /* __ASM_ARM_IO_H */ |