IO.h

Go to the documentation of this file.

/* ========================================
 
  Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
 
======================================== */
 
#pragma once
 
#include <ArchKit/ArchKit.h>
#include <NeKit/Array.h>
#include <NeKit/Config.h>
#include <NeKit/Ref.h>
 
namespace Kernel {
template <SizeT Sz>
class IOArray final {
 public:
  IOArray() = delete;
 
  IOArray(nullPtr) = delete;
 
  explicit IOArray(Array<UShort, Sz>& ports) : fPorts(ports) {}
 
  ~IOArray() {}
 
  IOArray& operator=(const IOArray&) = default;
 
  IOArray(const IOArray&) = default;
 
  operator bool() { return !fPorts.Empty(); }
 
 public:
  template <typename T>
  T In(SizeT index);
 
  template <typename T>
  void Out(SizeT index, T value);
 
 private:
  Array<UShort, Sz> fPorts;
};
 
inline constexpr UInt16 kMaxPorts = 16;
 
using IOArray16 = IOArray<kMaxPorts>;
 
template <SizeT Sz>
inline Array<UShort, Sz> make_ports(UShort base) {
  Array<UShort, Sz> ports;
 
  for (UShort i = 0; i < Sz; ++i) {
    ports[i] = base + i;
  }
 
  return ports;
}
}  // namespace Kernel
 
#ifdef __NE_AMD64__
#include <KernelKit/PCI/IOArray+AMD64.inl>
#else
#error Please provide platform specific code for the I/O
#endif  // ifdef __NE_AMD64__