88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
#ifndef __ASM_ARM_IO_H
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#define __ASM_ARM_IO_H
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#include <asm-generic/io.h>
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#define IO_SPACE_LIMIT 0
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/*
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* String version of IO memory access ops:
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*/
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extern void memcpy_fromio(void *, const volatile void __iomem *, size_t);
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extern void memcpy_toio(volatile void __iomem *, const void *, size_t);
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extern void memset_io(volatile void __iomem *, int, size_t);
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/*
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* Clear and set bits in one shot. These macros can be used to clear and
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* set multiple bits in a register using a single call. These macros can
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* also be used to set a multiple-bit bit pattern using a mask, by
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* specifying the mask in the 'clear' parameter and the new bit pattern
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* in the 'set' parameter.
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*/
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#define out_arch(type,endian,a,v) __raw_write##type(cpu_to_##endian(v),a)
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#define in_arch(type,endian,a) endian##_to_cpu(__raw_read##type(a))
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#define out_le64(a,v) out_arch(q,le64,a,v)
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#define out_le32(a,v) out_arch(l,le32,a,v)
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#define out_le16(a,v) out_arch(w,le16,a,v)
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#define in_le64(a) in_arch(q,le64,a)
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#define in_le32(a) in_arch(l,le32,a)
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#define in_le16(a) in_arch(w,le16,a)
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#define out_be32(a,v) out_arch(l,be32,a,v)
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#define out_be16(a,v) out_arch(w,be16,a,v)
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#define in_be32(a) in_arch(l,be32,a)
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#define in_be16(a) in_arch(w,be16,a)
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#define out_8(a,v) __raw_writeb(v,a)
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#define in_8(a) __raw_readb(a)
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#define clrbits(type, addr, clear) \
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out_##type((addr), in_##type(addr) & ~(clear))
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#define setbits(type, addr, set) \
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out_##type((addr), in_##type(addr) | (set))
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#define clrsetbits(type, addr, clear, set) \
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out_##type((addr), (in_##type(addr) & ~(clear)) | (set))
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#define clrbits_be32(addr, clear) clrbits(be32, addr, clear)
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#define setbits_be32(addr, set) setbits(be32, addr, set)
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#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set)
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#define clrbits_le32(addr, clear) clrbits(le32, addr, clear)
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#define setbits_le32(addr, set) setbits(le32, addr, set)
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#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set)
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#define clrbits_be16(addr, clear) clrbits(be16, addr, clear)
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#define setbits_be16(addr, set) setbits(be16, addr, set)
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#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set)
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#define clrbits_le16(addr, clear) clrbits(le16, addr, clear)
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#define setbits_le16(addr, set) setbits(le16, addr, set)
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#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set)
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#define clrbits_8(addr, clear) clrbits(8, addr, clear)
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#define setbits_8(addr, set) setbits(8, addr, set)
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#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
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#ifdef CONFIG_MMU
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void *phys_to_virt(unsigned long phys);
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unsigned long virt_to_phys(volatile void *virt);
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#else
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static inline void *phys_to_virt(unsigned long phys)
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{
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return (void *)phys;
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}
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static inline unsigned long virt_to_phys(volatile void *mem)
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{
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return (unsigned long)mem;
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}
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#endif
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#endif /* __ASM_ARM_IO_H */
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