/*
 * RTEMS virtex BSP
 *
 * This file declares constants of the interrupt controller.
 */

/*
 * Copyright (c) 2007 embedded brains GmbH. All rights reserved.
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */

#ifndef VIRTEX_IRQ_IRQ_H
#define VIRTEX_IRQ_IRQ_H

#include <rtems/irq.h>
#include <rtems/irq-extension.h>
#include <bsp/opbintctrl.h>

/*
 * the following definitions specify the indices used
 * to interface the interrupt handler API
 */

/*
 * Peripheral IRQ handlers related definitions
 */
#define BSP_OPBINTC_PER_IRQ_NUMBER	XPAR_INTC_MAX_NUM_INTR_INPUTS
#define BSP_OPBINTC_IRQ_LOWEST_OFFSET   0
#define BSP_OPBINTC_IRQ_MAX_OFFSET      (BSP_OPBINTC_IRQ_LOWEST_OFFSET\
                                         +BSP_OPBINTC_PER_IRQ_NUMBER-1)

#define BSP_IS_OPBINTC_IRQ(irqnum)				\
          (((irqnum) >= BSP_OPBINTC_IRQ_LOWEST_OFFSET) &&	\
	   ((irqnum) <= BSP_OPBINTC_IRQ_MAX_OFFSET))
/*
 * Processor IRQ handlers related definitions
 */
#define BSP_PROCESSOR_IRQ_NUMBER        3
#define BSP_PROCESSOR_IRQ_LOWEST_OFFSET	(BSP_OPBINTC_IRQ_MAX_OFFSET+1)
#define BSP_PROCESSOR_IRQ_MAX_OFFSET	(BSP_PROCESSOR_IRQ_LOWEST_OFFSET\
                                         +BSP_PROCESSOR_IRQ_NUMBER-1)

#define BSP_IS_PROCESSOR_IRQ(irqnum)				\
          (((irqnum) >= BSP_PROCESSOR_IRQ_LOWEST_OFFSET) &&	\
	   ((irqnum) <= BSP_PROCESSOR_IRQ_MAX_OFFSET))
/*
 * Summary
 */
#define BSP_IRQ_NUMBER                  (BSP_PROCESSOR_IRQ_MAX_OFFSET+1)
#define BSP_LOWEST_OFFSET		BSP_OPBINTC_IRQ_LOWEST_OFFSET
#define BSP_MAX_OFFSET                  BSP_PROCESSOR_IRQ_MAX_OFFSET

#define BSP_IS_VALID_IRQ(irqnum) 	\
          (BSP_IS_PROCESSOR_IRQ(irqnum)	\
           || BSP_IS_OPBINTC_IRQ(irqnum))

#define BSP_INTERRUPT_VECTOR_COUNT (BSP_PROCESSOR_IRQ_MAX_OFFSET + 1)

#ifndef ASM
#ifdef __cplusplus
extern "C" {
#endif

/*
 * index table for the module specific handlers, a few entries are only placeholders
 */
  typedef enum {
    BSP_OPBINTC_IRQ_FIRST	= BSP_OPBINTC_IRQ_LOWEST_OFFSET,
    /*
     * Note: for this BSP, the peripheral names are derived
     * from the Xilinx parameter file
     */
    BSP_OPBINTC_IRQ_LAST 	= BSP_OPBINTC_IRQ_MAX_OFFSET,
    BSP_EXT               = BSP_PROCESSOR_IRQ_LOWEST_OFFSET + 0,
    BSP_PIT               = BSP_PROCESSOR_IRQ_LOWEST_OFFSET + 1,
    BSP_CRIT              = BSP_PROCESSOR_IRQ_LOWEST_OFFSET + 2
  } rtems_irq_symbolic_name;

#define BSP_OPBINTC_XPAR(xname) (BSP_OPBINTC_IRQ_LOWEST_OFFSET+xname)

#ifdef __cplusplus
}
#endif
#endif /* ASM */

#endif /* VIRTEX_IRQ_IRQ_H */