apic.h

#ifndef APIC_H_
#define APIC_H_

#include "common.h"

typedef struct {
  DWORD a;
  DWORD b;
  DWORD c;
  DWORD d;
} UINT128;

typedef volatile struct {
  UINT128 Reserved1;
  UINT128 Reserved2;
  UINT128 LocalAPIC_ID;
  UINT128 LocalAPIC_Version;
  UINT128 Reserved3;
  UINT128 Reserved4;
  UINT128 Reserved5;
  UINT128 Reserved6;
  UINT128 Task_Priority;
  UINT128 Arbritation_Priority;
  UINT128 Processor_Priority;
  UINT128 EOI;
  UINT128 Reserved7;
  UINT128 Logical_Destination;
  UINT128 Destination_Format;
  UINT128 Spurious_Interrupt_Vector;
  UINT128 In_Service[8];
  UINT128 Trigger_Mode[8];
  UINT128 Interrupt_Request[8];
  UINT128 Error_Status;
  UINT128 Reserved8[7];
  UINT128 Interrupt_Command_Low32Bit;
  UINT128 Interrupt_Command_High32Bit;
  UINT128 LVT_Timer;
  UINT128 LVT_Thermal_Sensor;
  UINT128 LVT_Performance_Monitor;
  UINT128 LVT_LINT0;
  UINT128 LVT_LINT1;
  UINT128 LVT_Error;
  UINT128 Initial_Count;
  UINT128 Current_Count;
  UINT128 Reserved9[4];
  UINT128 Divide_Configuration;
  UINT128 Reserved10;
} APIC, *PAPIC;

typedef volatile union
{
  struct
  {
    unsigned int vector: 8; //0-7
    unsigned int deliverymode: 3; //8-10
    unsigned int destinationmode: 1; //11
    unsigned int deliverystatus: 1; //12  (removed in x2apic)
    unsigned int reserved1: 1; //13
    unsigned int level: 1; //14
    unsigned int triggermode: 1; //15
    unsigned int reserved2: 2; //16-17
    unsigned int destination_shorthand: 2; //18-19
    unsigned int reserved3: 12; //20-31
    union{
      struct{
        unsigned int reserved4: 24; //32-55
        unsigned int destination: 8;
      };
      DWORD x2destination;
    };
  };
  QWORD command;
  struct
  {
    DWORD lower;
    DWORD higher; //write this first
  };
} APIC_ICR, *PAPIC_ICR;

extern unsigned int apic_getBootID(void);
extern void apic_enableSVR(void);
extern void initcpus(QWORD apic_base, DWORD entrypage);
extern void apic_eoi(void);



extern void APbootcode(void);
extern void APbootcodeEnd(void);
extern QWORD APBootVar_CR3;
extern QWORD APBootVar_GDT[24];
extern WORD APBootVar_Size;

void apic_sendWaitInterrupt(BYTE apicid);
int getHighestPendingInterrupt();

DWORD ReadAPICRegister(DWORD reg);

#endif /*APIC_H_*/