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 #define BITOP_WORD(nr)          ((nr) / BITS_PER_LONG)
   8 #define BITOP_LE_SWIZZLE        ((BITS_PER_LONG-1) & ~0x7)
   9
  10 #if defined(__LITTLE_ENDIAN)
  11
  12 #define generic_test_le_bit(nr, addr) test_bit(nr, addr)
  13 #define generic___set_le_bit(nr, addr) __set_bit(nr, addr)
  14 #define generic___clear_le_bit(nr, addr) __clear_bit(nr, addr)
  15
  16 #define generic_test_and_set_le_bit(nr, addr) test_and_set_bit(nr, addr)
  17 #define generic_test_and_clear_le_bit(nr, addr) test_and_clear_bit(nr, addr)
  18
  19 #define generic___test_and_set_le_bit(nr, addr) __test_and_set_bit(nr, addr)
  20 #define generic___test_and_clear_le_bit(nr, addr) __test_and_clear_bit(nr, addr)
  21
  22 #define generic_find_next_zero_le_bit(addr, size, offset) find_next_zero_bit(addr, size, offset)
  23 #define generic_find_next_le_bit(addr, size, offset) \
  24                         find_next_bit(addr, size, offset)
  25
  26 #elif defined(__BIG_ENDIAN)
  27
  28 #define generic_test_le_bit(nr, addr) \
  29         test_bit((nr) ^ BITOP_LE_SWIZZLE, (addr))
  30 #define generic___set_le_bit(nr, addr) \
  31         __set_bit((nr) ^ BITOP_LE_SWIZZLE, (addr))
  32 #define generic___clear_le_bit(nr, addr) \
  33         __clear_bit((nr) ^ BITOP_LE_SWIZZLE, (addr))
  34
  35 #define generic_test_and_set_le_bit(nr, addr) \
  36         test_and_set_bit((nr) ^ BITOP_LE_SWIZZLE, (addr))
  37 #define generic_test_and_clear_le_bit(nr, addr) \
  38         test_and_clear_bit((nr) ^ BITOP_LE_SWIZZLE, (addr))
  39
  40 #define generic___test_and_set_le_bit(nr, addr) \
  41         __test_and_set_bit((nr) ^ BITOP_LE_SWIZZLE, (addr))
  42 #define generic___test_and_clear_le_bit(nr, addr) \
  43         __test_and_clear_bit((nr) ^ BITOP_LE_SWIZZLE, (addr))
  44
  45 extern unsigned long generic_find_next_zero_le_bit(const unsigned long *addr,
  46                 unsigned long size, unsigned long offset);
  47 extern unsigned long generic_find_next_le_bit(const unsigned long *addr,
  48                 unsigned long size, unsigned long offset);
  49
  50 #else
  51 #error "Please fix <asm/byteorder.h>"
  52 #endif
  53
  54 #define generic_find_first_zero_le_bit(addr, size) \
  55         generic_find_next_zero_le_bit((addr), (size), 0)
  56
  57 #endif /* _ASM_GENERIC_BITOPS_LE_H_ */