Subversion Repositories riscv_vhdl

/**

 * @file

 * @copyright  Copyright 2016 GNSS Sensor Ltd. All right reserved.

 * @author     Sergey Khabarov - sergeykhbr@gmail.com

 * @brief      Interrupt controller functional model.

 */

#ifndef __DEBUGGER_SOCSIM_PLUGIN_IRQCTRL_H__

#define __DEBUGGER_SOCSIM_PLUGIN_IRQCTRL_H__

#include <iclass.h>

#include <iservice.h>

#include "coreservices/iclock.h"

#include "coreservices/imemop.h"

#include "coreservices/iwire.h"

#include "coreservices/icpugen.h"

namespace debugger {

class IrqPort : public IWire {

 public:

    IrqPort(IService *parent, const char *portname, int idx);

    /** IWire interface */

    virtual void raiseLine();

    virtual void lowerLine() { level_ = false; }

    virtual void setLevel(bool level);

    virtual bool getLevel() { return level_; }

 protected:

    IService *parent_;

    int idx_;

    bool level_;

};

class IrqController : public IService,

                      public IMemoryOperation,

                      public IClockListener {

 public:

    IrqController(const char *name);

    ~IrqController();

    /** IService interface */

    virtual void postinitService();

    /** IMemoryOperation */

    virtual ETransStatus b_transport(Axi4TransactionType *payload);

    /** IClockListener interface */

    virtual void stepCallback(uint64_t t);

    /** Controller specific methods visible for ports */

    void requestInterrupt(int idx);

 private:

    AttributeType mipi_;

    AttributeType irqTotal_;

    AttributeType cpu_;

    ICpuGeneric *icpu_;

    IClock *iclk_;

    static const int IRQ_MAX = 32;

    IrqPort *irqlines_[IRQ_MAX];

    struct irqctrl_map {

        uint32_t irq_mask;      // 0x00: [RW] 1=disable; 0=enable

        uint32_t irq_pending;   // 0x04: [RW]

        uint32_t irq_clear;     // 0x08: [WO]

        uint32_t irq_rise;      // 0x0c: [WO]

        uint64_t isr_table;     // 0x10: [RW]

        uint64_t dbg_cause;     // 0x18: [RW]

        uint64_t dbg_epc;       // 0x20: [RW]

        uint32_t irq_lock;      // 0x28: [RW]

        uint32_t irq_cause_idx; // 0x2c: [RW]

    } regs_;

};

DECLARE_CLASS(IrqController)

}  // namespace debugger

#endif  // __DEBUGGER_SOCSIM_PLUGIN_IRQCTRL_H__