win877.asl

AMI 主板的BIOS源码。

	{
		Store(0x03, IOHI)
		Store(0xF8, IOLO)
	}
	Else 
	{ 
		If (LEqual(Local2,0xbe))
	  	{
			Store(0x02, IOHI)
			Store(0xF8, IOLO)
		}
		Else
		{
			If (LEqual(Local2,0xfa))
			{
				Store(0x03, IOHI)
				Store(0xE8, IOLO)
			}
			Else
			{
				Store(0x02, IOHI)
				Store(0xE8, IOLO)
			}
		}
	}

	Store(IOLO, IORL)
	Store(IOHI, IORH)
      
	// Write Current Settings into IRQ descriptor
      	Store(One,Local0)
      	Store(CR28,Local5)
	ShiftRight(Local5,4,Local5)
	ShiftLeft(Local0,Local5,IRQL)
	
	EXFG()	

			
	Return(BUF1)				// Return BUF1 
	
	
	} 					// End _CRS method
		

// Possible Resource Settings

	Name(_PRS,Buffer(){		
	
/// First Possible Config 3F8, IRQ 4
		0x30,		// Start Dependent Function
		
		0x47,		// IO Port Descriptor
		0x01,		// 16 bit decode
		0xF8,		// IO Port Base Minimum Low  
		0x03,		// IO Port Base Maximum High 
		0xF8,		// IO Port Range Minimum Low 
		0x03,		// IO Port Range Maximum High
		0x08,		// Base Alignment
		0x08,		// Length of contiguous IO Ports

		0x22,		// IRQ Descriptor
		0x10,		// IRQ Mask 
		0x00,
	
/// Second Possible Config 2F8 IRQ 3
			
		0x30,		// Start Dependent Function     
				                                
		0x47,		// IO Port Descriptor           
		0x01,		// 16 bit decode                
		0xF8,		// IO Port Base Minimum Low     
		0x02,		// IO Port Base Maximum High    
		0xF8,		// IO Port Range Minimum Low    
		0x02,		// IO Port Range Maximum High   
		0x08,		// Base Alignment               
		0x08,		// Length of contiguous IO Ports
				                                
		0x22,		// IRQ Descriptor               
		0x08,		// IRQ Mask                     
		0x00,

/// Third Possible Config 3E8 IRQ 4
			
		0x30,		// Start Dependent Function     
				                                
		0x47,		// IO Port Descriptor           
		0x01,		// 16 bit decode                
		0xE8,		// IO Port Base Minimum Low     
		0x03,		// IO Port Base Maximum High    
		0xE8,		// IO Port Range Minimum Low    
		0x03,		// IO Port Range Maximum High   
		0x08,		// Base Alignment               
		0x08,		// Length of contiguous IO Ports
				                                
		0x22,		// IRQ Descriptor               
		0x10,		// IRQ Mask                     
		0x00,
					

/// Fourth Possible Config 2E8 IRQ 3
			
		0x30,		// Start Dependent Function     
				                                
		0x47,		// IO Port Descriptor           
		0x01,		// 16 bit decode                
		0xE8,		// IO Port Base Minimum Low     
		0x02,		// IO Port Base Maximum High    
		0xE8,		// IO Port Range Minimum Low    
		0x02,		// IO Port Range Maximum High   
		0x08,		// Base Alignment               
		0x08,		// Length of contiguous IO Ports
				                                
		0x22,		// IRQ Descriptor
		0x08,		// IRQ Mask      
		0x00,
		
		0x38,		// End Dependent Function
		
		0x79,		// End Tag
		0x00,		// 

	
	})


// Set Resource Settings

	Method(_SRS,1){
				
	CreateByteField (ARG0, 0x02, IOLO)	// IO Port Low
	CreateByteField (ARG0, 0x03, IOHI)	// IO Port High
	CreateByteField (ARG0, 0x09, IRQL)	// IRQ
		       
	
	ENFG()

	// Set Base IO Address
	If (LEqual(IOHI,0x03))
	{
		If (LEqual(IOLO,0xF8))
		{
			Store(0xfe, CR24)
		}
		Else
		{
			Store(0xfa, CR24)
		}
	}
	Else 
	{ 
		If (LEqual(IOLO,0xF8))
		{
			Store(0xbe, CR24)
		}
		Else
		{
			Store(0xba, CR24)
		}
	}
			
	// Set IRQ
			
	FindSetRightBit(IRQL,Local0)
	Subtract(Local0,1,Local0)
	ShiftLeft(Local0,4,Local0)

      	Store(CR28,Local5)
	And(Local5,0x0f,Local5)
	Or(Local0,Local5,CR28)
			
	EXFG()

	}					// End _SRS Method
	

// RI# Ring Indicate Wake Up on UART1 - Applies only to Desktop Reference TX

//	Method(_PRW,0){			// Wake-up control method
//		Return(10)		// RI is wired to the chipset 
//					// as a wake event
//	}

}			// End of UART1

// UART2 - COMB
// Presently Code only for COM


// COM Control Methods RS232 Operation 

Device(UAR2){		

	Name(_HID,EISAID("PNP0501"))
        Name(_UID,2)                    // Generic ID for COMB
        

// Status  

	Method(_STA,0){			

	// Enable Config
	ENFG()					

	// Is the device functioning?
	// read Activate Register 
					
	If(CR25)
	{			// Return Device Present and 
				// device Active
		EXFG()			
		Return(0xf)
	}
	Else
	{
		EXFG()			
		Return(1) 	// Device Absent
	}

	}				// End _STA method

// Disable 

	Method(_DIS,0){		
		
	// Enable Config
	ENFG()
					
	// Set Address Register to zero
//	Store(Zero, CR25)
	
	EXFG()
	
	} 				// End _DIS method
	

// Current Resource Settings

	Method(_CRS,0){				
		
			Name(BUF1,Buffer(){		
				0x47,		// IO Port Descriptor
				0x01,		// 16 bit decode
				0xF8,		// IO Port Range Minimum Base Low
				0x03,		// IO Port Range Minimum Base High
				0xF8,		// IO Port Range Maximum Base LOW
				0x03,		// IO Port Range Maximum Base High
				0x08,		// Base Alignment
				0x08,		// Length of contiguous IO Ports

				0x22,		// IRQ Descriptor
				0x10,		// IRQ Mask Lo=bit 4
				0x0,

				0x79,		// End Tag
				0x00,		// Checksum = 0 Treat as if the 
						// Structure checksummed correctly
				})

		CreateByteField (BUF1, 0x02, IOLO)	// IO Port Low
		CreateByteField (BUF1, 0x03, IOHI)	// IO Port High
		CreateByteField (BUF1, 0x04, IORL)	// IO Range Low
		CreateByteField (BUF1, 0x05, IORH)	// IO Range High
		CreateByteField (BUF1, 0x09, IRQL)	// IRQ Mask
			
	ENFG()	
			
	// Write Current Settings into Buffer for IO Descriptor
      	Store(CR25, Local2)
	If (LEqual(Local2,0xfe))
	{
		Store(0x03, IOHI)
		Store(0xF8, IOLO)
	}
	Else 
	{ 
		If (LEqual(Local2,0xbe))
	  	{
			Store(0x02, IOHI)
			Store(0xF8, IOLO)
		}
		Else
		{
			If (LEqual(Local2,0xfa))
			{
				Store(0x03, IOHI)
				Store(0xE8, IOLO)
			}
			Else
			{
				Store(0x02, IOHI)
				Store(0xE8, IOLO)
			}
		}
	}

	Store(IOLO, IORL)
	Store(IOHI, IORH)
      
	// Write Current Settings into IRQ descriptor
      	Store(One,Local0)
      	Store(CR28,Local5)
	And(Local5,0x0f,Local5)
	ShiftLeft(Local0,Local5,IRQL)

	EXFG()

	Return(BUF1)				// Return BUF1 
			
	} 					// End _CRS method
		

// Possible Resource Settings

	Name(_PRS,Buffer(){		
	
/// First Possible Config 3F8, IRQ 4
		0x30,		// Start Dependent Function
		
		0x47,		// IO Port Descriptor
		0x01,		// 16 bit decode
		0xF8,		// IO Port Base Minimum Low  
		0x03,		// IO Port Base Maximum High 
		0xF8,		// IO Port Range Minimum Low 
		0x03,		// IO Port Range Maximum High
		0x08,		// Base Alignment
		0x08,		// Length of contiguous IO Ports

		0x22,		// IRQ Descriptor
		0x10,		// IRQ Mask 
		0x00,
	
/// Second Possible Config 2F8 IRQ 3
			
		0x30,		// Start Dependent Function     
				                                
		0x47,		// IO Port Descriptor           
		0x01,		// 16 bit decode                
		0xF8,		// IO Port Base Minimum Low     
		0x02,		// IO Port Base Maximum High    
		0xF8,		// IO Port Range Minimum Low    
		0x02,		// IO Port Range Maximum High   
		0x08,		// Base Alignment               
		0x08,		// Length of contiguous IO Ports
				                                
		0x22,		// IRQ Descriptor               
		0x08,		// IRQ Mask                     
		0x00,

/// Third Possible Config 3E8 IRQ 4
			
		0x30,		// Start Dependent Function     
				                                
		0x47,		// IO Port Descriptor           
		0x01,		// 16 bit decode                
		0xE8,		// IO Port Base Minimum Low     
		0x03,		// IO Port Base Maximum High    
		0xE8,		// IO Port Range Minimum Low    
		0x03,		// IO Port Range Maximum High   
		0x08,		// Base Alignment               
		0x08,		// Length of contiguous IO Ports
				                                
		0x22,		// IRQ Descriptor               
		0x10,		// IRQ Mask                     
		0x00,
					

/// Fourth Possible Config 2E8 IRQ 3
			
		0x30,		// Start Dependent Function     
				                                
		0x47,		// IO Port Descriptor           
		0x01,		// 16 bit decode                
		0xE8,		// IO Port Base Minimum Low     
		0x02,		// IO Port Base Maximum High    
		0xE8,		// IO Port Range Minimum Low    
		0x02,		// IO Port Range Maximum High   
		0x08,		// Base Alignment               
		0x08,		// Length of contiguous IO Ports
				                                
		0x22,		// IRQ Descriptor
		0x08,		// IRQ Mask      
		0x00,
		
		0x38,		// End Dependent Function
		
		0x79,		// End Tag
		0x00,		// 

	
	})

// Set Resource Settings

	Method(_SRS,1){		
				
	CreateByteField (ARG0, 0x02, IOLO)	// IO Port Low
	CreateByteField (ARG0, 0x03, IOHI)	// IO Port High
	CreateByteField (ARG0, 0x09, IRQL)	// IRQ
		       
	
	ENFG()	

	// Set Base IO Address
	If (LEqual(IOHI,0x03))
	{
		If (LEqual(IOLO,0xF8))
		{
			Store(0xfe, CR25)
		}
		Else
		{
			Store(0xfa, CR25)
		}
	}
	Else 
	{ 
		If (LEqual(IOLO,0xF8))
		{
			Store(0xbe, CR25)
		}
		Else
		{
			Store(0xba, CR25)
		}
	}
			
	// Set IRQ
			
	FindSetRightBit(IRQL,Local0)
	Subtract(Local0,1,Local0)

      	Store(CR28,Local5)
	And(Local5,0xf0,Local5)
	Or(Local0,Local5,CR28)
			
	EXFG()

	}					// End _SRS Method


}						// End of COMB

// ECP DEVICE

Device(ECP) {

	Name (_HID, EISAID("PNP0401"))	// PnP ID ECP Port
	

	// ECP Device Status  
	
	Method (_STA, 0) {		
	
	ENFG()

	And(CR09, 0x80, Local0)
	And(CR00, 0x08, Local1)
	If(LAnd(Local1, Local0))
	{
		If(CR23)
		{
			EXFG()			
			Return(0xf)	// Return Device Present and device Active
		}
		Else
		{
			EXFG()			
			Return(0x1)	// Return Device Present and Disable
		}
	}
	Else
	{
	EXFG()			
	Return(0) 	// Device Absent
	}
	} 				// End of _STA Method
	

	// Device Disable 
	
	Method (_DIS) {			
	
	ENFG()

	Store (Zero, CR23)	// Set Activate Reg = 0
	
	EXFG()	
	
	} 				// End of _DIS Method

// Current Resource Settings 
	 
	Method (_CRS) {			

		Name(BUF6,Buffer(){
			0x47,			// IO Port Descriptor
			0x01,			// 16 bit decode
			0x00,			// 
			0x00,
			0x00,			
			0x00,

			0x01,			// Alignment
			0x08,			// Number of ports
			
			0x47,			// IO port descriptor
                        0x01,                   // 16 bit decode
			0x00,			// LPT1 @ 0x778h
			0x00,
			0x00,
			0x00,
			
			0x01,			// Alignment
			0x04,			// Number of Ports