Broadcom2836.h

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/*
 * Copyright (C) 2025 Ivan Tan
 * Copyright (C) 2015 Niek Linnenbank
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef __LIBARCH_ARM64_BROADCOM2836_H
#define __LIBARCH_ARM64_BROADCOM2836_H
 
#include <arm64/ARM64IO.h>
#include <Types.h>
 
class Broadcom2836
{
  private:
 
    static const Address IOBase = 0x40000000;
 
    enum Registers
    {
        CorePrescalerRegister   = 0x0008,
        CoreTimerRegister       = 0x0040,
        CoreIrqRegister         = 0x0060,
        CoreSetMailboxRegister  = 0x0080
    };
 
  public:
 
    enum Timer
    {
        NonSecurePhysicalTimer
    };
 
    enum Result
    {
        Success,
        NotFound,
        IOError,
        FrequencyError
    };
 
  public:
 
    Broadcom2836(Size coreId);
 
    Result initialize();
 
    Result setCoreTimerIrq(Timer timer, bool enable);
 
    bool getCoreTimerIrqStatus(Timer timer) const;
 
  private:
 
    Size m_coreId;
 
    ARM64IO m_io;
};
 
#endif /* __LIBARCH_ARM64_BROADCOM2836_H */