| /* |
| * Copyright (C) 2016 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. |
| */ |
| |
| #ifndef SYSTEM_PERIPHERALMANAGER_DAEMON_UART_MANAGER_H_ |
| #define SYSTEM_PERIPHERALMANAGER_DAEMON_UART_MANAGER_H_ |
| |
| #include <stdint.h> |
| |
| #include <map> |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include <android-base/unique_fd.h> |
| #include <base/macros.h> |
| |
| #include "pin_mux_manager.h" |
| #include "uart_driver.h" |
| |
| namespace android { |
| |
| struct UartSysfs { |
| std::string name; |
| std::string path; |
| std::string mux; |
| std::unique_ptr<UartDriverInterface> driver_; |
| }; |
| |
| class UartDevice { |
| public: |
| UartDevice(UartSysfs* uart_device) : uart_device_(uart_device) {} |
| ~UartDevice() { uart_device_->driver_.reset(); } |
| |
| int SetBaudrate(uint32_t baudrate) { |
| return uart_device_->driver_->SetBaudrate(baudrate); |
| } |
| |
| int Write(const std::vector<uint8_t>& data, uint32_t* bytes_written) { |
| return uart_device_->driver_->Write(data, bytes_written); |
| } |
| |
| int Read(std::vector<uint8_t>* data, uint32_t size, uint32_t* bytes_read) { |
| return uart_device_->driver_->Read(data, size, bytes_read); |
| } |
| |
| private: |
| UartSysfs* uart_device_; |
| }; |
| |
| class UartManager { |
| public: |
| ~UartManager(); |
| |
| // Get the singleton. |
| static UartManager* GetManager(); |
| static void ResetManager(); |
| |
| // Used by the BSP to tell PMan of an sysfs uart_device. |
| bool RegisterUartDevice(const std::string& name, const std::string& path); |
| bool SetPinMux(const std::string& name, const std::string& mux); |
| |
| std::vector<std::string> GetDevicesList(); |
| bool HasUartDevice(const std::string& name); |
| |
| bool RegisterDriver(std::unique_ptr<UartDriverInfoBase> driver_info); |
| |
| std::unique_ptr<UartDevice> OpenUartDevice(const std::string& name); |
| |
| private: |
| UartManager(); |
| |
| std::map<std::string, std::unique_ptr<UartDriverInfoBase>> driver_infos_; |
| std::map<std::string, UartSysfs> uart_devices_; |
| |
| DISALLOW_COPY_AND_ASSIGN(UartManager); |
| }; |
| |
| } // namespace android |
| |
| #endif // SYSTEM_PERIPHERALMANAGER_DAEMON_UART_MANAGER_H_ |