irq.h

/*===============================================================*\
| Project: RTEMS virtex BSP                                       |
+-----------------------------------------------------------------+
|                    Copyright (c) 2007                           |
|                    Embedded Brains GmbH                         |
|                    Obere Lagerstr. 30                           |
|                    D-82178 Puchheim                             |
|                    Germany                                      |
|                    rtems@embedded-brains.de                     |
+-----------------------------------------------------------------+
| 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.                           |
|                                                                 |
+-----------------------------------------------------------------+
| this file declares constants of the interrupt controller        |
\*===============================================================*/
#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_MIN 0
#define BSP_INTERRUPT_VECTOR_MAX BSP_PROCESSOR_IRQ_MAX_OFFSET

#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 */