sysepic.h

VxWorks的bootloader实现

/* sysEpic.h - Embedded Programmable Interrupt Controller (EPIC) driver */

/* Copyright 1984-1999 Wind River Systems, Inc. */
/* Copyright 1996, 1998 Motorola, Inc. */

/*
modification history
--------------------
01b,01apr02,jnz   added support for 8245/8241 on chip duarts
01a,10oct99,mtl   written from SPS/Motorola & yk 750 by teamF1
*/

#ifndef	__INCsysEpich
#define	__INCsysEpich

#ifdef __cplusplus
extern "C" {
#endif

/*  interrupt handler description  */
    
typedef struct intHandlerDesc     
    {
    VOIDFUNCPTR			vec;	/* interrupt vector */
    int				arg;	/* interrupt handler argument */
    struct  intHandlerDesc *	next;	/* pointer to the next handler */
    } INT_HANDLER_DESC;

/*   limit values  */

#define BIT(x)			(1 << (x))

#define  INTERRUPT_TABLESIZE   256
    
#define EPIC_EUMBBAR  		0x40000			/* EUMBBAR of EPIC  */
#define EPIC_FEATURES_REG	(EPIC_EUMBBAR + 0x01000)/* Feature reporting */
#define EPIC_GLOBAL_REG		(EPIC_EUMBBAR + 0x01020)/* Global config.  */
#define EPIC_INT_CONF_REG	(EPIC_EUMBBAR + 0x01030)/* Interrupt config. */
#define EPIC_VENDOR_ID_REG	(EPIC_EUMBBAR + 0x01080)/* Vendor id */
#define EPIC_PROC_INIT_REG	(EPIC_EUMBBAR + 0x01090)/* Processor init. */
#define EPIC_SPUR_VEC_REG	(EPIC_EUMBBAR + 0x010e0)/* Spurious vector */
#define EPIC_TM_FREQ_REG	(EPIC_EUMBBAR + 0x010f0)/* Timer Frequency */

#define EPIC_TM0_CUR_COUNT_REG	(EPIC_EUMBBAR + 0x01100)/* Gbl TM0 Cur. Count*/
#define EPIC_TM0_BASE_COUNT_REG	(EPIC_EUMBBAR + 0x01110)/* Gbl TM0 Base Count*/
#define EPIC_TM0_VEC_REG	(EPIC_EUMBBAR + 0x01120)/* Gbl TM0 Vector Pri*/
#define EPIC_TM0_DES_REG	(EPIC_EUMBBAR + 0x01130)/* Gbl TM0 Dest. */

#define EPIC_TM1_CUR_COUNT_REG	(EPIC_EUMBBAR + 0x01140)/* Gbl TM1 Cur. Count*/
#define EPIC_TM1_BASE_COUNT_REG	(EPIC_EUMBBAR + 0x01150)/* Gbl TM1 Base Count*/
#define EPIC_TM1_VEC_REG	(EPIC_EUMBBAR + 0x01160)/* Gbl TM1 Vector Pri*/
#define EPIC_TM1_DES_REG	(EPIC_EUMBBAR + 0x01170)/* Gbl TM1 Dest. */

#define EPIC_TM2_CUR_COUNT_REG	(EPIC_EUMBBAR + 0x01180)/* Gbl TM2 Cur. Count*/
#define EPIC_TM2_BASE_COUNT_REG	(EPIC_EUMBBAR + 0x01190)/* Gbl TM2 Base Count*/
#define EPIC_TM2_VEC_REG	(EPIC_EUMBBAR + 0x011a0)/* Gbl TM2 Vector Pri*/
#define EPIC_TM2_DES_REG	(EPIC_EUMBBAR + 0x011b0)/* Gbl TM2 Dest */

#define EPIC_TM3_CUR_COUNT_REG	(EPIC_EUMBBAR + 0x011c0)/* Gbl TM3 Cur. Count*/
#define EPIC_TM3_BASE_COUNT_REG	(EPIC_EUMBBAR + 0x011d0)/* Gbl TM3 Base Count*/
#define EPIC_TM3_VEC_REG	(EPIC_EUMBBAR + 0x011e0)/* Gbl TM3 Vector Pri*/
#define EPIC_TM3_DES_REG	(EPIC_EUMBBAR + 0x011f0)/* Gbl TM3 Dest. */

#define EPIC_EX_INT0_VEC_REG	(EPIC_EUMBBAR + 0x10200)/* Ext. Int. Sr0 Des */
#define EPIC_EX_INT0_DES_REG	(EPIC_EUMBBAR + 0x10210)/* Ext. Int. Sr0 Vect*/
#define EPIC_EX_INT1_VEC_REG	(EPIC_EUMBBAR + 0x10220)/* Ext. Int. Sr1 Des */
#define EPIC_EX_INT1_DES_REG	(EPIC_EUMBBAR + 0x10230)/* Ext. Int. Sr1 Vect*/
#define EPIC_EX_INT2_VEC_REG	(EPIC_EUMBBAR + 0x10240)/* Ext. Int. Sr2 Des */
#define EPIC_EX_INT2_DES_REG	(EPIC_EUMBBAR + 0x10250)/* Ext. Int. Sr2 Vect*/
#define EPIC_EX_INT3_VEC_REG	(EPIC_EUMBBAR + 0x10260)/* Ext. Int. Sr3 Des */
#define EPIC_EX_INT3_DES_REG	(EPIC_EUMBBAR + 0x10270)/* Ext. Int. Sr3 Vect*/
#define EPIC_EX_INT4_VEC_REG	(EPIC_EUMBBAR + 0x10280)/* Ext. Int. Sr4 Des */
#define EPIC_EX_INT4_DES_REG	(EPIC_EUMBBAR + 0x10290)/* Ext. Int. Sr4 Vect*/


#define EPIC_SR_INT0_VEC_REG	(EPIC_EUMBBAR + 0x10200)/* Sr. Int. Sr0 Des */
#define EPIC_SR_INT0_DES_REG	(EPIC_EUMBBAR + 0x10210)/* Sr. Int. Sr0 Vect */
#define EPIC_SR_INT1_VEC_REG	(EPIC_EUMBBAR + 0x10220)/* Sr. Int. Sr1 Des */
#define EPIC_SR_INT1_DES_REG	(EPIC_EUMBBAR + 0x10230)/* Sr. Int. Sr1 Vect.*/
#define EPIC_SR_INT2_VEC_REG	(EPIC_EUMBBAR + 0x10240)/* Sr. Int. Sr2 Des */
#define EPIC_SR_INT2_DES_REG	(EPIC_EUMBBAR + 0x10250)/* Sr. Int. Sr2 Vect.*/
#define EPIC_SR_INT3_VEC_REG	(EPIC_EUMBBAR + 0x10260)/* Sr. Int. Sr3 Des */
#define EPIC_SR_INT3_DES_REG	(EPIC_EUMBBAR + 0x10270)/* Sr. Int. Sr3 Vect.*/
#define EPIC_SR_INT4_VEC_REG	(EPIC_EUMBBAR + 0x10280)/* Sr. Int. Sr4 Des */
#define EPIC_SR_INT4_DES_REG	(EPIC_EUMBBAR + 0x10290)/* Sr. Int. Sr4 Vect.*/

#define EPIC_SR_INT5_VEC_REG	(EPIC_EUMBBAR + 0x102a0)/* Sr. Int. Sr5 Des */
#define EPIC_SR_INT5_DES_REG	(EPIC_EUMBBAR + 0x102b0)/* Sr. Int. Sr5 Vect.*/
#define EPIC_SR_INT6_VEC_REG	(EPIC_EUMBBAR + 0x102c0)/* Sr. Int. Sr6 Des */
#define EPIC_SR_INT6_DES_REG	(EPIC_EUMBBAR + 0x102d0)/* Sr. Int. Sr6 Vect.*/
#define EPIC_SR_INT7_VEC_REG	(EPIC_EUMBBAR + 0x102e0)/* Sr. Int. Sr7 Des */
#define EPIC_SR_INT7_DES_REG	(EPIC_EUMBBAR + 0x102f0)/* Sr. Int. Sr7 Vect.*/
#define EPIC_SR_INT8_VEC_REG	(EPIC_EUMBBAR + 0x10300)/* Sr. Int. Sr8 Des */
#define EPIC_SR_INT8_DES_REG	(EPIC_EUMBBAR + 0x10310)/* Sr. Int. Sr8 Vect.*/
#define EPIC_SR_INT9_VEC_REG	(EPIC_EUMBBAR + 0x10320)/* Sr. Int. Sr9 Des */
#define EPIC_SR_INT9_DES_REG	(EPIC_EUMBBAR + 0x10330)/* Sr. Int. Sr9 Vect.*/

#define EPIC_SR_INT10_VEC_REG	(EPIC_EUMBBAR + 0x10340)/* Sr. Int. Sr10 Des */
#define EPIC_SR_INT10_DES_REG	(EPIC_EUMBBAR + 0x10350)/* Sr. Int. Sr10 Vect*/
#define EPIC_SR_INT11_VEC_REG	(EPIC_EUMBBAR + 0x10360)/* Sr. Int. Sr11 Des */
#define EPIC_SR_INT11_DES_REG	(EPIC_EUMBBAR + 0x10370)/* Sr. Int. Sr11 Vect*/
#define EPIC_SR_INT12_VEC_REG	(EPIC_EUMBBAR + 0x10380)/* Sr. Int. Sr12 Des */
#define EPIC_SR_INT12_DES_REG	(EPIC_EUMBBAR + 0x10390)/* Sr. Int. Sr12 Vect*/
#define EPIC_SR_INT13_VEC_REG	(EPIC_EUMBBAR + 0x103a0)/* Sr. Int. Sr13 Des */
#define EPIC_SR_INT13_DES_REG	(EPIC_EUMBBAR + 0x103b0)/* Sr. Int. Sr13 Vect*/
#define EPIC_SR_INT14_VEC_REG	(EPIC_EUMBBAR + 0x103c0)/* Sr. Int. Sr14 Des */
#define EPIC_SR_INT14_DES_REG	(EPIC_EUMBBAR + 0x103d0)/* Sr. Int. Sr14 Vect*/
#define EPIC_SR_INT15_VEC_REG	(EPIC_EUMBBAR + 0x103e0)/* Sr. Int. Sr15 Des */
#define EPIC_SR_INT15_DES_REG	(EPIC_EUMBBAR + 0x103f0)/* Sr. Int. Sr15 Vect*/

#define EPIC_I2C_INT_VEC_REG	(EPIC_EUMBBAR + 0x11020)/* I2C Int. Vect Pri.*/
#define EPIC_I2C_INT_DES_REG	(EPIC_EUMBBAR + 0x11030)/* I2C Int. Dest */
#define EPIC_DMA0_INT_VEC_REG	(EPIC_EUMBBAR + 0x11040)/* DMA0 Int. Vect Pri*/
#define EPIC_DMA0_INT_DES_REG	(EPIC_EUMBBAR + 0x11050)/* DMA0 Int. Dest */
#define EPIC_DMA1_INT_VEC_REG	(EPIC_EUMBBAR + 0x11060)/* DMA1 Int. Vect Pri*/
#define EPIC_DMA1_INT_DES_REG	(EPIC_EUMBBAR + 0x11070)/* DMA1 Int. Dest */
#define EPIC_MSG_INT_VEC_REG	(EPIC_EUMBBAR + 0x110c0)/* Msg Int. Vect Pri*/
#define EPIC_MSG_INT_DES_REG	(EPIC_EUMBBAR + 0x110d0)/* Msg Int. Dest  */

#define EPIC_DUART1_INT_VEC_REG (EPIC_EUMBBAR + 0x11120)/* DUART1 Int. VectPri*/
#define EPIC_DUART1_INT_DES_REG (EPIC_EUMBBAR + 0x11130)/* DUART1 Int. Dest */
#define EPIC_DUART2_INT_VEC_REG (EPIC_EUMBBAR + 0x11140)/* DUART2 Int. VectPri*/
#define EPIC_DUART2_INT_DES_REG (EPIC_EUMBBAR + 0x11150)/* DUART2 Int. Dest */

#define EPIC_PROC_CTASK_PRI_REG	(EPIC_EUMBBAR + 0x20080)/* Proc. current task*/
#define EPIC_PROC_INT_ACK_REG	(EPIC_EUMBBAR + 0x200a0)/* Int. acknowledge */
#define EPIC_PROC_EOI_REG	(EPIC_EUMBBAR + 0x200b0)/* End of interrupt */

#define EPIC_VEC_REG_INTERVAL	0x20	/* Distance between int. vector regs */

#define EPIC_VEC_REG(irq)       (EPIC_EX_INT0_VEC_REG + \
                                 (irq * EPIC_VEC_REG_INTERVAL))

/* GCR register */

#define EPIC_GCR_RESET		BIT(31)
#define EPIC_GCR_MODE_MIXED	BIT(29)

/* ICR register */

#define EPIC_ICR_SEI		BIT(27)
#define EPIC_ICR_CLK_RATIO_MSK	(BIT(30) | BIT(29) | BIT(28))
#define EPIC_ICR_CLK_RATIO(val) (((val) << 28) & EPIC_ICR_CLK_RATIO_MSK)

/* IVPR register */

#define EPIC_IVPR_INTR_MSK	BIT(31)
#define EPIC_IVPR_INTR_ACTIVE	BIT(30)
#define EPIC_IVPR_INTR_POLARITY BIT(23)
#define EPIC_IVPR_INTR_SENSE	BIT(22)
#define EPIC_IVPR_POLARITY(p)	((p) << 23)
#define EPIC_IVPR_SENS(s)	((s) << 22)
#define EPIC_IVPR_PRIORITY_MSK	(BIT(19) | BIT(18) | BIT(17) | BIT(16))
#define EPIC_IVPR_PRIORITY(p) 	(((p) << 16) & EPIC_IVPR_PRIORITY_MSK)
#define EPIC_IVPR_VECTOR_MSK	(0xff)
#define EPIC_IVPR_VECTOR(vec) 	((vec) & EPIC_IVPR_VECTOR_MSK)
#define EPIC_INT_ACT_LOW	0
#define EPIC_INT_ACT_HIGH	1
#define EPIC_SENSE_LVL		1
#define EPIC_SENSE_EDG		0


#define EPIC_DIRECT_IRQ		0

#define EPIC_INV_PRIO_ERROR	 ((ULONG)(-1))

#define EPIC_INTER_IN_SERVICE	 2

#define EPIC_INTERNAL_INTERRUPT 20
#define EPIC_EXTERNAL_INTERRUPT 21
#define EPIC_INV_INTER_SOURCE 	22

#define EPIC_MAX_EXT_IRQS	5

#define EPIC_PRIORITY_MIN	0    /* minimum level of priority */

#define EPIC_PRIORITY_MAX	15   /* maximum level of priority */

#define EPIC_DUART1_INT_VECT    0x79 /* duart 1 vector number */
#define EPIC_DUART2_INT_VECT    0x7a /* duart 2 vector number */

IMPORT void   	epicInit (ULONG IRQType, ULONG clkRatio);
IMPORT ULONG  	epicCurTaskPrioSet (int prioNum);
IMPORT int    	epicIntEnable (int srcAddr);
IMPORT int    	epicIntDisable (int srcAddr);
IMPORT int    	epicIntAck (void);
IMPORT void   	epicEOI (void);
IMPORT STATUS 	epicIntSourceSet (ULONG srcAddr, int polarity,
                                  int sense, int priority, int vector);
IMPORT STATUS 	epicsrcAddrCheck (ULONG srcAddr);

IMPORT STATUS 	sysEpicIntrInit (void);
IMPORT void 	intHandlerExec (UCHAR intVec);

#ifdef __cplusplus
}
#endif

#endif	/* __INCsysEpich */