Christopher Wiley | 00aa56e | 2016-06-24 14:25:38 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "wifi_hal/driver_tool.h" |
| 18 | |
Christopher Wiley | f41e52f | 2016-09-09 13:28:03 -0700 | [diff] [blame] | 19 | #include <android-base/logging.h> |
| 20 | #include <private/android_filesystem_config.h> |
| 21 | |
Christopher Wiley | 00aa56e | 2016-06-24 14:25:38 -0700 | [diff] [blame] | 22 | #include "hardware_legacy/wifi.h" |
| 23 | |
| 24 | namespace android { |
| 25 | namespace wifi_hal { |
| 26 | |
| 27 | const int DriverTool::kFirmwareModeSta = WIFI_GET_FW_PATH_STA; |
| 28 | const int DriverTool::kFirmwareModeAp = WIFI_GET_FW_PATH_AP; |
| 29 | const int DriverTool::kFirmwareModeP2p = WIFI_GET_FW_PATH_P2P; |
| 30 | |
Christopher Wiley | f41e52f | 2016-09-09 13:28:03 -0700 | [diff] [blame] | 31 | bool DriverTool::TakeOwnershipOfFirmwareReload() { |
| 32 | if (!wifi_get_fw_path(kFirmwareModeSta) && |
| 33 | !wifi_get_fw_path(kFirmwareModeAp) && |
| 34 | !wifi_get_fw_path(kFirmwareModeP2p)) { |
| 35 | return true; // HAL doesn't think we need to load firmware for any mode. |
| 36 | } |
| 37 | |
| 38 | if (chown(WIFI_DRIVER_FW_PATH_PARAM, AID_WIFI, AID_WIFI) != 0) { |
| 39 | PLOG(ERROR) << "Error changing ownership of '" << WIFI_DRIVER_FW_PATH_PARAM |
| 40 | << "' to wifi:wifi"; |
| 41 | return false; |
| 42 | } |
| 43 | |
| 44 | return true; |
| 45 | } |
Christopher Wiley | 1d3a41b | 2016-08-22 10:23:22 -0700 | [diff] [blame] | 46 | |
Christopher Wiley | 00aa56e | 2016-06-24 14:25:38 -0700 | [diff] [blame] | 47 | bool DriverTool::LoadDriver() { |
| 48 | return ::wifi_load_driver() == 0; |
| 49 | } |
| 50 | |
| 51 | bool DriverTool::UnloadDriver() { |
| 52 | return ::wifi_unload_driver() == 0; |
| 53 | } |
| 54 | |
| 55 | bool DriverTool::IsDriverLoaded() { |
| 56 | return ::wifi_unload_driver() != 0; |
| 57 | } |
| 58 | |
Roshan Pius | 6ce7173 | 2016-11-17 13:24:45 -0800 | [diff] [blame] | 59 | bool DriverTool::IsFirmwareModeChangeNeeded(int mode) { |
| 60 | return (wifi_get_fw_path(mode) != nullptr); |
| 61 | } |
| 62 | |
Christopher Wiley | 00aa56e | 2016-06-24 14:25:38 -0700 | [diff] [blame] | 63 | bool DriverTool::ChangeFirmwareMode(int mode) { |
| 64 | const char* fwpath = wifi_get_fw_path(mode); |
| 65 | if (!fwpath) { |
| 66 | return true; // HAL doesn't think we need to load firmware for this mode. |
| 67 | } |
| 68 | if (wifi_change_fw_path(fwpath) != 0) { |
| 69 | // Not all devices actually require firmware reloads, but |
| 70 | // failure to change the firmware path when it is defined is an error. |
| 71 | return false; |
| 72 | } |
| 73 | return true; |
| 74 | } |
| 75 | |
| 76 | } // namespace wifi_hal |
| 77 | } // namespace android |