| /* |
| * 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_I2C_DRIVER_H_ |
| #define SYSTEM_PERIPHERALMANAGER_DAEMON_I2C_DRIVER_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <string> |
| |
| #include <base/macros.h> |
| |
| #include "peripheralmanager/constants.h" |
| |
| namespace android { |
| |
| class I2cDriverInterface { |
| public: |
| I2cDriverInterface() {} |
| virtual ~I2cDriverInterface() {} |
| |
| // TODO(leecam): Init should have generic params. |
| virtual bool Init(uint32_t bus_id, uint32_t address) = 0; |
| |
| // Returns 0 on success, errno on errors. |
| virtual int32_t Read(void* data, uint32_t size, uint32_t* bytes_read) = 0; |
| virtual int32_t ReadRegByte(uint8_t reg, uint8_t* val) = 0; |
| virtual int32_t ReadRegWord(uint8_t reg, uint16_t* val) = 0; |
| virtual int32_t ReadRegBuffer(uint8_t reg, |
| uint8_t* data, |
| uint32_t size, |
| uint32_t* bytes_read) = 0; |
| |
| virtual int32_t Write(const void* data, |
| uint32_t size, |
| uint32_t* bytes_written) = 0; |
| virtual int32_t WriteRegByte(uint8_t reg, uint8_t val) = 0; |
| virtual int32_t WriteRegWord(uint8_t reg, uint16_t val) = 0; |
| virtual int32_t WriteRegBuffer(uint8_t reg, |
| const uint8_t* data, |
| uint32_t size, |
| uint32_t* bytes_written) = 0; |
| }; |
| |
| class I2cDriverInfoBase { |
| public: |
| I2cDriverInfoBase() {} |
| virtual ~I2cDriverInfoBase() {} |
| |
| virtual std::string Compat() = 0; |
| virtual std::unique_ptr<I2cDriverInterface> Probe() = 0; |
| }; |
| |
| template <class T, class PARAM> |
| class I2cDriverInfo : public I2cDriverInfoBase { |
| public: |
| explicit I2cDriverInfo(PARAM param) : param_(param) {} |
| ~I2cDriverInfo() override {} |
| |
| std::string Compat() override { return T::Compat(); } |
| |
| std::unique_ptr<I2cDriverInterface> Probe() override { |
| return std::unique_ptr<I2cDriverInterface>(new T(param_)); |
| } |
| |
| private: |
| PARAM param_; |
| }; |
| |
| } // namespace android |
| |
| #endif // SYSTEM_PERIPHERALMANAGER_DAEMON_I2C_DRIVER_H_ |