| // 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 "libec/versions_command.h" |
| |
| namespace ec { |
| |
| EcCmdVersionSupportStatus VersionsCommand::IsVersionSupported( |
| uint32_t version) { |
| if (Result() == kEcCommandUninitializedResult) { |
| // Running EC_CMD_GET_CMD_VERSIONS itself failed (e.g. due to timeout). |
| return EcCmdVersionSupportStatus::UNKNOWN; |
| } |
| |
| if (Result() != EC_RES_SUCCESS) { |
| // Command not found on EC. |
| return EcCmdVersionSupportStatus::UNSUPPORTED; |
| } |
| |
| if ((Resp()->version_mask & EC_VER_MASK(version)) == 0) { |
| // Command found but version not supported. |
| return EcCmdVersionSupportStatus::UNSUPPORTED; |
| } |
| |
| return EcCmdVersionSupportStatus::SUPPORTED; |
| } |
| |
| } // namespace ec |
