reactos/drivers/bus/acpi/include/platform/acmsc.h

   1 #ifndef __ACMSC_H__
   2 #define __ACMSC_H__
   3
   4 #define COMPILER_DEPENDENT_UINT64 unsigned __int64
   5
   6 #if defined(_M_IX86)
   7
   8 #define ACPI_ASM_MACROS
   9 #define causeinterrupt(level)
  10 #define BREAKPOINT3
  11 #define halt() { __asm { sti } __asm { hlt } }
  12 #define wbinvd()
  13
  14 __forceinline void _ACPI_ACQUIRE_GLOBAL_LOCK(void * GLptr, unsigned char * Acq_)
  15 {
  16         unsigned char Acq;
  17
  18         __asm
  19         {
  20                 mov ecx, [GLptr]
  21
  22         L1:     mov eax, [ecx]
  23                 mov edx, eax
  24                 and edx, ecx
  25                 bts edx, 1
  26                 adc edx, 0
  27                 lock cmpxchg [ecx], edx
  28                 jne L1
  29                 cmp dl, 3
  30                 sbb eax, eax
  31
  32                 mov [Acq], al
  33         };
  34
  35         *Acq_ = Acq;
  36 }
  37
  38 #define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
  39         _ACPI_ACQUIRE_GLOBAL_LOCK((GLptr), (unsigned char *)&(Acq))
  40
  41 __forceinline void _ACPI_RELEASE_GLOBAL_LOCK(void * GLptr, unsigned char * Acq_)
  42 {
  43         unsigned char Acq;
  44
  45         __asm
  46         {
  47                 mov ecx, [GLptr]
  48
  49         L1:     mov eax, [ecx]
  50                 mov edx, eax
  51                 and edx, ecx
  52                 lock cmpxchg [ecx], edx
  53                 jnz L1
  54                 and eax, 1
  55
  56                 mov [Acq], al
  57         };
  58
  59         *Acq_ = Acq;
  60 }
  61
  62 #define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
  63         _ACPI_RELEASE_GLOBAL_LOCK((GLptr), (unsigned char *)&(Acq))
  64
  65 #endif
  66
  67 #endif /* __ACMSC_H__ */