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// Copyright 2023 Intel Corporation.
//
// This software and the related documents are Intel copyrighted materials,
// and your use of them is governed by the express license under which they
// were provided to you ("License"). Unless the License provides otherwise,
// you may not use, modify, copy, publish, distribute, disclose or transmit
// this software or the related documents without Intel's prior written
// permission.
//
// This software and the related documents are provided as is, with no express
// or implied warranties, other than those that are expressly stated in the
// License.
#pragma once
#include <filesystem>
#include <memory>
#include <string>
#include <vector>
#include "IUioDevice.h"
namespace UIO {
class Device : public IDevice {
public:
Device(const DeviceItem& deviceItem);
~Device();
// IDevice interface
uint32_t Read(uint32_t registerIndex) override;
void Write(uint32_t registerIndex, uint32_t value) override;
void ReadBlock(void* host_addr, size_t offset, size_t size) override;
void WriteBlock(const void* host_addr, size_t offset, size_t size) override;
bool IsValid();
static uint64_t ReadValueFromFile(const std::filesystem::path& path);
static std::string ReadStringFromFile(const std::filesystem::path& path);
static void SplitIndexedDeviceName(const std::string& indexedDeviceName, std::string& deviceName, uint32_t& index);
private:
Device() = delete;
Device(Device const&) = delete;
void operator=(Device const&) = delete;
bool MapRegion();
void UnmapRegion();
DeviceItem _deviceItem;
uint32_t _maximumRegisterIndex = 0;
int _fd = -1; // File pointer to UIO - Used to indicate the the Device is valid
uint64_t _physicalAddress = 0;
uint64_t _size = 0; // Size of the mmapped region
uint64_t _offset = 0; // Offset of the first register
uint8_t* _pBase = nullptr; // Base of the mmapped region
uint32_t* _pPtr = nullptr; // The first register
};
} // namespace UIO
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