text: // Copyright 2020 The Chromium OS Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef DIAGNOSTICS_CROS_HEALTHD_FETCHERS_STORAGE_NVME_DEVICE_ADAPTER_H_
  #define DIAGNOSTICS_CROS_HEALTHD_FETCHERS_STORAGE_NVME_DEVICE_ADAPTER_H_
  
  #include <string>
  
  #include <base/files/file_path.h>
  
  #include "diagnostics/common/statusor.h"
  #include "diagnostics/cros_healthd/fetchers/storage/storage_device_adapter.h"
  #include "diagnostics/mojom/public/cros_healthd_probe.mojom.h"
  
  namespace diagnostics {
  
  // NVME-specific data retrieval module.
  class NvmeDeviceAdapter : public StorageDeviceAdapter {
   public:
    explicit NvmeDeviceAdapter(const base::FilePath& dev_sys_path);
    NvmeDeviceAdapter(const NvmeDeviceAdapter&) = delete;
    NvmeDeviceAdapter(NvmeDeviceAdapter&&) = delete;
    NvmeDeviceAdapter& operator=(const NvmeDeviceAdapter&) = delete;
    NvmeDeviceAdapter& operator=(NvmeDeviceAdapter&&) = delete;
    ~NvmeDeviceAdapter() override = default;
  
    std::string GetDeviceName() const override;
    StatusOr<chromeos::cros_healthd::mojom::BlockDeviceVendor> GetVendorId()
        const override;
    StatusOr<chromeos::cros_healthd::mojom::BlockDeviceProduct> GetProductId()
        const override;
    StatusOr<chromeos::cros_healthd::mojom::BlockDeviceRevision> GetRevision()
        const override;
    StatusOr<std::string> GetModel() const override;
    StatusOr<chromeos::cros_healthd::mojom::BlockDeviceFirmware>
    GetFirmwareVersion() const override;
  
   private:
    StatusOr<chromeos::cros_healthd::mojom::BlockDeviceRevision>
    GetRevisionOnPre410Kernel() const;
  
    const base::FilePath dev_sys_path_;
  };
  
  }  // namespace diagnostics
  
  #endif  // DIAGNOSTICS_CROS_HEALTHD_FETCHERS_STORAGE_NVME_DEVICE_ADAPTER_H_
  