1 // 2 // Copyright (C) 2015 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 "shill/wifi/wifi_driver_hal.h" 18 19 #include <base/logging.h> 20 #include <hardware_brillo/wifi_driver_hal.h> 21 #include <hardware/hardware.h> 22 23 using std::string; 24 25 namespace shill { 26 27 namespace { 28 29 base::LazyInstance<WiFiDriverHal> g_wifi_driver_hal = LAZY_INSTANCE_INITIALIZER; 30 31 bool WiFiDriverInit(wifi_driver_device_t** out_driver) { 32 const hw_module_t* module; 33 wifi_driver_device_t* driver; 34 int ret; 35 36 ret = hw_get_module(WIFI_DRIVER_DEVICE_ID_MAIN, &module); 37 if (ret != 0) { 38 LOG(ERROR) << "Failed to find HAL module"; 39 return false; 40 } 41 42 if (wifi_driver_open(module, &driver) != 0) { 43 LOG(ERROR) << "Failed to open WiFi HAL module"; 44 return false; 45 } 46 47 wifi_driver_error error; 48 error = (*driver->wifi_driver_initialize)(); 49 if (error != WIFI_SUCCESS) { 50 LOG(ERROR) << "Failed to initialize WiFi driver"; 51 wifi_driver_close(driver); 52 return false; 53 } 54 55 *out_driver = driver; 56 return true; 57 } 58 59 void WiFiDriverShutdown(wifi_driver_device_t* driver) { 60 wifi_driver_close(driver); 61 } 62 63 string WiFiDriverSetupInterface(wifi_driver_mode mode) { 64 wifi_driver_device_t* driver; 65 if (!WiFiDriverInit(&driver)) { 66 return ""; 67 } 68 69 string name_str; 70 char device_name[DEFAULT_WIFI_DEVICE_NAME_SIZE]; 71 wifi_driver_error error = 72 (*driver->wifi_driver_set_mode)(mode, device_name, sizeof(device_name)); 73 if (error != WIFI_SUCCESS) { 74 LOG(ERROR) << "WiFi driver setup for mode " << mode << " failed: " << error; 75 } else { 76 name_str = string(device_name); 77 } 78 79 WiFiDriverShutdown(driver); 80 return name_str; 81 } 82 83 } // namespace 84 85 WiFiDriverHal::WiFiDriverHal() {} 86 87 WiFiDriverHal::~WiFiDriverHal() {} 88 89 WiFiDriverHal* WiFiDriverHal::GetInstance() { 90 return g_wifi_driver_hal.Pointer(); 91 } 92 93 string WiFiDriverHal::SetupStationModeInterface() { 94 return WiFiDriverSetupInterface(WIFI_MODE_STATION); 95 } 96 97 string WiFiDriverHal::SetupApModeInterface() { 98 return WiFiDriverSetupInterface(WIFI_MODE_AP); 99 } 100 101 } // namespace shill 102
