kernel/core/processor/armv7/InterruptManager.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef KERNEL_PROCESSOR_ARMV7_INTERRUPTMANAGER_H
#define KERNEL_PROCESSOR_ARMV7_INTERRUPTMANAGER_H

#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/processor/InterruptManager.h"
#include "pedigree/kernel/processor/MemoryRegion.h"
#include "pedigree/kernel/processor/SyscallManager.h"
#include "pedigree/kernel/processor/types.h"

class ARMV7InterruptManager : public ::InterruptManager, public ::SyscallManager
{
  public:
    inline static ARMV7InterruptManager &instance()
    {
        return m_Instance;
    }

    // InterruptManager Interface
    virtual bool
    registerInterruptHandler(size_t interruptNumber, InterruptHandler *handler);

#ifdef DEBUGGER
    virtual bool registerInterruptHandlerDebugger(
        size_t interruptNumber, InterruptHandler *handler);
    virtual size_t getBreakpointInterruptNumber() PURE;
    virtual size_t getDebugInterruptNumber() PURE;
#endif

    // SyscallManager Interface
    virtual bool
    registerSyscallHandler(Service_t Service, SyscallHandler *handler);

    virtual uintptr_t syscall(
        Service_t service, uintptr_t function, uintptr_t p1 = 0,
        uintptr_t p2 = 0, uintptr_t p3 = 0, uintptr_t p4 = 0, uintptr_t p5 = 0);

    static void initialiseProcessor();

    static void interrupt(InterruptState &interruptState);

  private:
    ARMV7InterruptManager();
    ARMV7InterruptManager(const ARMV7InterruptManager &);
    ARMV7InterruptManager &operator=(const ARMV7InterruptManager &);
    virtual ~ARMV7InterruptManager();

    InterruptHandler *m_Handler[256];
#ifdef DEBUGGER

    InterruptHandler *m_DbgHandler[256];
#endif

    SyscallHandler *m_SyscallHandler[/*SyscallManager::*/ serviceEnd];

    static MemoryRegion m_MPUINTCRegion;

    static ARMV7InterruptManager m_Instance;

    enum Registers
    {
        INTCPS_REVISION = 0x00,          // R
        INTCPS_SYSCONFIG = 0x10 / 4,     // RW
        INTCPS_SYSSTATUS = 0x14 / 4,     // R
        INTCPS_SIR_IRQ = 0x40 / 4,       // R
        INTCPS_SIR_FIQ = 0x44 / 4,       // R
        INTCPS_CONTROL = 0x48 / 4,       // RW
        INTCPS_PROTECTION = 0x4C / 4,    // RW
        INTCPS_IDLE = 0x50 / 4,          // RW
        INTCPS_IRQ_PRIORITY = 0x60 / 4,  // RW
        INTCPS_FIQ_PRIORITY = 0x64 / 4,  // RW
        INTCPS_THRESHOLD = 0x68 / 4,     // RW
        INTCPS_ITR = 0x80 / 4,           // R, multiple entries
        INTCPS_MIR = 0x84 / 4,           // RW, as above
        INTCPS_MIR_CLEAR = 0x88 / 4,     // W, as above
        INTCPS_MIR_SET = 0x8C / 4,       // W, as above
        INTCPS_ISR_SET = 0x90 / 4,       // RW, as above
        INTCPS_ISR_CLEAR = 0x94 / 4,     // W, as above
        INTCPS_PENDING_IRQ = 0x98 / 4,   // R, as above
        INTCPS_PENDING_FIQ = 0x9C / 4,   // R, as above
        INTCPS_ILR = 0x100 / 4,          // RW, multiple entries
    };
};

#endif