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/*
* 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_I2CDEV_H_
#define SYSTEM_PERIPHERALMANAGER_DAEMON_I2C_DRIVER_I2CDEV_H_
#include <stdint.h>
#include <memory>
#include <base/macros.h>
#include "char_device.h"
#include "i2c_driver.h"
namespace android {
class I2cDriverI2cDev : public I2cDriverInterface {
public:
explicit I2cDriverI2cDev(CharDeviceFactory* char_device_factory);
~I2cDriverI2cDev();
static std::string Compat() { return "I2CDEV"; }
bool Init(uint32_t bus_id, uint32_t address) override;
int32_t Read(void* data, uint32_t size, uint32_t* bytes_read) override;
int32_t ReadRegByte(uint8_t reg, uint8_t* val) override;
int32_t ReadRegWord(uint8_t reg, uint16_t* val) override;
int32_t ReadRegBuffer(uint8_t reg,
uint8_t* data,
uint32_t size,
uint32_t* bytes_read) override;
int32_t Write(const void* data,
uint32_t size,
uint32_t* bytes_written) override;
int32_t WriteRegByte(uint8_t reg, uint8_t val) override;
int32_t WriteRegWord(uint8_t reg, uint16_t val) override;
int32_t WriteRegBuffer(uint8_t reg,
const uint8_t* data,
uint32_t size,
uint32_t* bytes_written) override;
private:
int fd_;
// Used for unit testing and is null in production.
// Ownership is in the test and outlives this class.
CharDeviceFactory* char_device_factory_;
std::unique_ptr<CharDeviceInterface> char_interface_;
DISALLOW_COPY_AND_ASSIGN(I2cDriverI2cDev);
};
} // namespace android
#endif // SYSTEM_PERIPHERALMANAGER_DAEMON_I2C_DRIVER_I2CDEV_H_
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