// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/nekernel-org/nekernel

#include <HALKit/RISCV/AP.h>
#include <HALKit/RISCV/Processor.h>
#include <KernelKit/DebugOutput.h>

using namespace Kernel;

namespace Kernel {
namespace Detail {
  STATIC void mp_hang_fn(void) {
    while (YES);
  }

}  // namespace Detail

/// @brief wakes up thread.
/// wakes up thread from hang.
void mp_wakeup_thread(HAL::StackFramePtr stack) {
  if (!stack) return;

  hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15),
                     reinterpret_cast<VoidPtr>(stack->IP));
}

/// @brief makes thread sleep.
/// hooks and hangs thread to prevent code from executing.
void mp_hang_thread(HAL::StackFramePtr stack) {
  if (!stack) return;

  hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15),
                     reinterpret_cast<VoidPtr>(Kernel::Detail::mp_hang_fn));
}

}  // namespace Kernel