include/asm-generic/bitops/le.h

   1 #ifndef _ASM_GENERIC_BITOPS_LE_H_
   2 #define _ASM_GENERIC_BITOPS_LE_H_
   3
   4 #include <asm/types.h>
   5 #include <asm/byteorder.h>
   6
   7 #if defined(__LITTLE_ENDIAN)
   8
   9 #define BITOP_LE_SWIZZLE        0
  10
  11 static inline unsigned long find_next_zero_bit_le(const void *addr,
  12                 unsigned long size, unsigned long offset)
  13 {
  14         return find_next_zero_bit(addr, size, offset);
  15 }
  16
  17 static inline unsigned long find_next_bit_le(const void *addr,
  18                 unsigned long size, unsigned long offset)
  19 {
  20         return find_next_bit(addr, size, offset);
  21 }
  22
  23 static inline unsigned long find_first_zero_bit_le(const void *addr,
  24                 unsigned long size)
  25 {
  26         return find_first_zero_bit(addr, size);
  27 }
  28
  29 #elif defined(__BIG_ENDIAN)
  30
  31 #define BITOP_LE_SWIZZLE        ((BITS_PER_LONG-1) & ~0x7)
  32
  33 #ifndef find_next_zero_bit_le
  34 extern unsigned long find_next_zero_bit_le(const void *addr,
  35                 unsigned long size, unsigned long offset);
  36 #endif
  37
  38 #ifndef find_next_bit_le
  39 extern unsigned long find_next_bit_le(const void *addr,
  40                 unsigned long size, unsigned long offset);
  41 #endif
  42
  43 #ifndef find_first_zero_bit_le
  44 #define find_first_zero_bit_le(addr, size) \
  45         find_next_zero_bit_le((addr), (size), 0)
  46 #endif
  47
  48 #else
  49 #error "Please fix <asm/byteorder.h>"
  50 #endif
  51
  52 static inline int test_bit_le(int nr, const void *addr)
  53 {
  54         return test_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  55 }
  56
  57 static inline void __set_bit_le(int nr, void *addr)
  58 {
  59         __set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  60 }
  61
  62 static inline void __clear_bit_le(int nr, void *addr)
  63 {
  64         __clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  65 }
  66
  67 static inline int test_and_set_bit_le(int nr, void *addr)
  68 {
  69         return test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  70 }
  71
  72 static inline int test_and_clear_bit_le(int nr, void *addr)
  73 {
  74         return test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  75 }
  76
  77 static inline int __test_and_set_bit_le(int nr, void *addr)
  78 {
  79         return __test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  80 }
  81
  82 static inline int __test_and_clear_bit_le(int nr, void *addr)
  83 {
  84         return __test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
  85 }
  86
  87 #endif /* _ASM_GENERIC_BITOPS_LE_H_ */