| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <arpa/inet.h> |
| #include <unistd.h> |
| |
| #include <memory> |
| |
| #include <base/logging.h> |
| #include <brillo/flag_helper.h> |
| |
| #include <peripheralmanager/peripheral_manager_client.h> |
| |
| int main(int argc, char* argv[]) { |
| brillo::FlagHelper::Init(argc, argv, "PeripheralManager client."); |
| logging::InitLogging(logging::LoggingSettings()); |
| |
| // Get a client to the PeripheralManager. |
| BPeripheralManagerClient* client = BPeripheralManagerClient_new(); |
| |
| if (!client) { |
| LOG(ERROR) << "Failed to connect to client"; |
| return 1; |
| } |
| |
| // Open I2C bus. |
| BI2cDevice* i2c_device; |
| int ret = |
| BPeripheralManagerClient_openI2cDevice(client, "I2C6", 0x18, &i2c_device); |
| if (ret) { |
| LOG(ERROR) << "Failed to open I2C: " << strerror(ret); |
| return 1; |
| } |
| |
| uint16_t val = 0; |
| BI2cDevice_readRegWord(i2c_device, 0x05, &val); |
| |
| val = ntohs(val); |
| float temp = (val >> 4) & 0xFF; |
| temp += (float)(val & 0xF) / 16; |
| printf("Temp: %f\n", temp); |
| |
| BI2cDevice_delete(i2c_device); |
| |
| // Close the connection to PeripheralManager. |
| BPeripheralManagerClient_delete(client); |
| |
| return 0; |
| } |