i82489.h

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#ifndef __ASM_I82489_H
#define __ASM_I82489_H

/*
 *	Offsets for programming the 82489 and Pentium integrated APIC
 *
 *	Alan Cox <[e-mail]>, 1995.
 */
#define		APIC_PHYS_BASE	0xfee00000 /* IA s/w dev Vol 3, Section 7.4 */
 
#define		APIC_ID		0x20
#define			GET_APIC_ID(x)		(((x)>>24)&0x0F)
#define		APIC_VERSION	0x30
#define		APIC_TASKPRI	0x80
#define			APIC_TPRI_MASK		0xFF
#define		APIC_ARBPRI	0x90
#define			APIC_ARBPRI_MASK	0xFF
#define		APIC_PROCPRI	0xA0
#define		APIC_EOI	0xB0
#define			APIC_EIO_ACK		0x0		/* Write this to the EOI register */
#define		APIC_RRR	0xC0
#define		APIC_LDR	0xD0
#define			APIC_LDR_MASK		(0xFF<<24)
#define			GET_APIC_LOGICAL_ID(x)	(((x)>>24)&0xFF)
#define			SET_APIC_LOGICAL_ID(x)	(((x)<<24))
#define		APIC_DFR	0xE0
#define			GET_APIC_DFR(x)		(((x)>>28)&0x0F)
#define			SET_APIC_DFR(x)		((x)<<28)
#define		APIC_SPIV	0xF0
#define		APIC_ISR	0x100
#define		APIC_TMR	0x180
#define 	APIC_IRR	0x200
#define 	APIC_ESR	0x280
#define			APIC_ESR_SEND_CS	0x00001
#define			APIC_ESR_RECV_CS	0x00002
#define			APIC_ESR_SEND_ACC	0x00004
#define			APIC_ESR_RECV_ACC	0x00008
#define			APIC_ESR_SENDILL	0x00020
#define			APIC_ESR_RECVILL	0x00040
#define			APIC_ESR_ILLREGA	0x00080
#define		APIC_ICR	0x300
#define			APIC_DEST_SELF		0x40000
#define			APIC_DEST_ALLINC	0x80000
#define			APIC_DEST_ALLBUT	0xC0000
#define			APIC_DEST_RR_MASK	0x30000
#define			APIC_DEST_RR_INVALID	0x00000
#define			APIC_DEST_RR_INPROG	0x10000
#define			APIC_DEST_RR_VALID	0x20000
#define			APIC_DEST_LEVELTRIG	0x08000
#define			APIC_DEST_ASSERT	0x04000
#define			APIC_DEST_BUSY		0x01000
#define			APIC_DEST_LOGICAL	0x00800
#define			APIC_DEST_DM_FIXED	0x00000
#define			APIC_DEST_DM_LOWEST	0x00100
#define			APIC_DEST_DM_SMI	0x00200
#define			APIC_DEST_DM_REMRD	0x00300
#define			APIC_DEST_DM_NMI	0x00400
#define			APIC_DEST_DM_INIT	0x00500
#define			APIC_DEST_DM_STARTUP	0x00600
#define			APIC_DEST_VECTOR_MASK	0x000FF
#define		APIC_ICR2	0x310
#define			GET_APIC_DEST_FIELD(x)	(((x)>>24)&0xFF)
#define			SET_APIC_DEST_FIELD(x)	((x)<<24)
#define		APIC_LVTT	0x320
#define		APIC_LVT0	0x350
#define			APIC_LVT_TIMER_PERIODIC		(1<<17)
#define			APIC_LVT_MASKED			(1<<16)
#define			APIC_LVT_LEVEL_TRIGGER		(1<<15)
#define			APIC_LVT_REMOTE_IRR		(1<<14)
#define			APIC_INPUT_POLARITY		(1<<13)
#define			APIC_SEND_PENDING		(1<<12)
#define			GET_APIC_DELIVERY_MODE(x)	(((x)>>8)&0x7)
#define			SET_APIC_DELIVERY_MODE(x,y)	(((x)&~0x700)|((y)<<8))
#define				APIC_MODE_FIXED		0x0
#define				APIC_MODE_NMI		0x4
#define				APIC_MODE_EXINT		0x7
#define 	APIC_LVT1	0x360
#define		APIC_LVERR	0x370
#define		APIC_TMICT	0x380
#define		APIC_TMCCT	0x390
#define		APIC_TDCR	0x3E0
#define			APIC_TDR_DIV_1		0xB
#define			APIC_TDR_DIV_2		0x0
#define			APIC_TDR_DIV_4		0x1
#define			APIC_TDR_DIV_8		0x2
#define			APIC_TDR_DIV_16		0x3
#define			APIC_TDR_DIV_32		0x8
#define			APIC_TDR_DIV_64		0x9
#define			APIC_TDR_DIV_128	0xA

#define APIC_BASE (fix_to_virt(FIX_APIC_BASE))

extern __inline void apic_write(unsigned long reg, unsigned long v)
{
	*((volatile unsigned long *)(APIC_BASE+reg))=v;
}

extern __inline unsigned long apic_read(unsigned long reg)
{
	return *((volatile unsigned long *)(APIC_BASE+reg));
}

#endif