//----------------------------------------------------------------------------
// File Name           : aic.h
// Object              : Advanced Interrupt Controller Definition File.
//
// 1.0 27/10/02 GR     : Creation
//----------------------------------------------------------------------------

#ifndef aic_h
#define aic_h

#include    "std_c.h"

/*-----------------------------------------*/
/* AIC User Interface Structure Definition */
/*-----------------------------------------*/

typedef struct
{
    at91_reg        AIC_SMR[32] ;       /* Source Mode Register */
    at91_reg        AIC_SVR[32] ;       /* Source Vector Register */
    at91_reg        AIC_IVR ;           /* IRQ Vector Register */
    at91_reg        AIC_FVR ;           /* FIQ Vector Register */
    at91_reg        AIC_ISR ;           /* Interrupt Status Register */
    at91_reg        AIC_IPR ;           /* Interrupt Pending Register */
    at91_reg        AIC_IMR ;           /* Interrupt Mask Register */
    at91_reg        AIC_CISR ;          /* Core Interrupt Status Register */
    at91_reg        reserved0 ;
    at91_reg        reserved1 ;
    at91_reg        AIC_IECR ;          /* Interrupt Enable Command Register */
    at91_reg        AIC_IDCR ;          /* Interrupt Disable Command Register */
    at91_reg        AIC_ICCR ;          /* Interrupt Clear Command Register */
    at91_reg        AIC_ISCR ;          /* Interrupt Set Command Register */
    at91_reg        AIC_EOICR ;         /* End of Interrupt Command Register */
    at91_reg        AIC_SPU ;           /* Spurious Vector Register */
} StructAIC ;

/*--------------------------------------------*/
/* AIC_SMR[]: Interrupt Source Mode Registers */
/*--------------------------------------------*/

#define AIC_PRIOR                       0x07    /* Priority */

#define AIC_SRCTYPE                     0x60    /* Source Type Definition */

/* Internal Interrupts */
#define AIC_SRCTYPE_INT_LEVEL_SENSITIVE 0x00    /* Level Sensitive */
#define AIC_SRCTYPE_INT_EDGE_TRIGGERED  0x20    /* Edge Triggered */

/* External Interrupts */
#define AIC_SRCTYPE_EXT_LOW_LEVEL       0x00    /* Low Level */
#define AIC_SRCTYPE_EXT_NEGATIVE_EDGE   0x20    /* Negative Edge */
#define AIC_SRCTYPE_EXT_HIGH_LEVEL      0x40    /* High Level */
#define AIC_SRCTYPE_EXT_POSITIVE_EDGE   0x60    /* Positive Edge */

/*------------------------------------*/
/* AIC_ISR: Interrupt Status Register */
/*------------------------------------*/

#define AIC_IRQID                       0x1F    /* Current source interrupt */

/*------------------------------------------*/
/* AIC_CISR: Interrupt Core Status Register */
/*------------------------------------------*/

#define AIC_NFIQ                        0x01    /* Core FIQ Status */
#define AIC_NIRQ                        0x02    /* Core IRQ Status */

/*-------------------------------------*/
/* Peripheral and Interrupt Identifier */
/*-------------------------------------*/

#define FIQ_ID      0       /* Fast Interrupt */
#define SWIRQ_ID    1       /* Soft Interrupt (generated by the AIC) */
#define US0_ID      2       /* USART Channel 0 */
#define US1_ID      3       /* USART Channel 1 */
#define US2_ID      4       /* USART Channel 2 */
#define SPI_ID      5       /* SPI */
#define TC0_ID      6       /* Timer Channel 0 */
#define TC1_ID      7       /* Timer Channel 1 */
#define TC2_ID      8       /* Timer Channel 2 */
#define TC3_ID      9       /* Timer Channel 3 */
#define TC4_ID      10      /* Timer Channel 4 */
#define TC5_ID      11      /* Timer Channel 5 */
#define WD_ID       12      /* Watchdog */
#define PIOA_ID     13      /* Parallel I/O Controller A */
#define PIOB_ID     14      /* Parallel I/O Controller B */

#define IRQ3_ID     28      /* External interrupt 3 */
#define IRQ2_ID     29      /* External interrupt 2 */
#define IRQ1_ID     30      /* External interrupt 1 */
#define IRQ0_ID     31      /* External interrupt 0 */

/*-------------------------------*/
/* Advanced Interrupt Controller */
/*-------------------------------*/

#define AIC_BASE                        ((StructAIC *)0xFFFFF000)

#endif /* aic_h */