blob: ef07d62e63b9d9c76c1e5a2f9d358ddb674a7734 [file] [log] [blame]
// 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.
#include <memory>
#include <base/files/file_path.h>
#include <base/files/file_util.h>
#include <base/strings/string_number_conversions.h>
namespace typecd {
// Class used to represent the altmodes supported by a partner or cable.
class AltMode {
// Factory function to create an alternate mode object, given a filepath.
// Returns:
// An alternate mode object on success, and nullptr otherwise.
static std::unique_ptr<AltMode> CreateAltMode(const base::FilePath& syspath);
explicit AltMode(const base::FilePath& syspath) : syspath_(syspath) {}
AltMode(const AltMode&) = delete;
AltMode& operator=(const AltMode&) = delete;
uint16_t GetSVID() const { return svid_; }
uint32_t GetVDO() const { return vdo_; }
// Get the latest values of the alt mode properties from sysfs.
// Returns:
// True if all properties were successfully update, and false otherwise.
// The properties of the AltMode are only updated if *all* properties were
// read successfully.
bool UpdateValuesFromSysfs();
uint16_t svid_;
uint32_t vdo_;
// The index of the VDO for this alt mode in the Discover Mode response.
int mode_index_;
base::FilePath syspath_;
} // namespace typecd
#endif // TYPECD_ALT_MODE_H_