mirror of
https://github.com/niellun/FastCarPlay.git
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Niellune
97 lines
2.4 KiB
C++
97 lines
2.4 KiB
C++
#ifndef SRC_CONNECTOR
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#define SRC_CONNECTOR
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#include <libusb-1.0/libusb.h>
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#include <atomic>
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#include <thread>
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#include <mutex>
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#include <string>
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#include "helper/isender.h"
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#include "struct/atomic_queue.h"
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#include "struct/command.h"
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#include "struct/usb_buffer.h"
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#include "aes_cipher.h"
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#define MAX_USB_REQUESTS 128
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#define COMMAND_QUEUE_SIZE 256
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#define ENCRYPTION_BASE "SkBRDy3gmrw1ieH0"
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#define PROTOCOL_DEBUG_NONE 0
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#define PROTOCOL_DEBUG_UNKNOWN 1
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#define PROTOCOL_DEBUG_NOSTREAM 2
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#define PROTOCOL_DEBUG_OUT 3
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#define PROTOCOL_DEBUG_ALL 4
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class Connector;
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struct UsbContext {
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Connector* owner;
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DataSlot* slot;
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libusb_transfer* transfer;
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};
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class Connector : public ISender
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{
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public:
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Connector();
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virtual ~Connector();
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void start();
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void stop();
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bool send(std::unique_ptr<Command> packet) override;
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protected:
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virtual void onData(uint32_t cmd, uint32_t length, uint8_t *data) = 0;
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virtual void onStatus(u_int8_t status) = 0;
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virtual void onDevice(bool connected) = 0;
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void setEncryption(bool enabled);
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static void printMessage(uint32_t cmd, uint32_t length, uint8_t *data, bool encrypted, bool out);
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static void printInts(uint8_t *data, uint32_t length, uint16_t max);
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static void printBytes(uint8_t *data, uint32_t length, uint16_t max);
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static const char *cmdString(int cmd);
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AESCipher *_cipher = nullptr;
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UsbBuffer _usbBuffer;
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private:
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static void onUsbRead(libusb_transfer *transfer);
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void readLoop();
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void bufferReadLoop();
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void writeLoop();
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void onDisconnect();
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bool connect(uint16_t vendor_id, uint16_t product_id);
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bool link();
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bool state(u_int8_t state);
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bool linkFail(int status, const char *msg);
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int write(int cmd, bool encrypt, uint8_t *data, uint32_t size);
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libusb_context *_context = nullptr;
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libusb_device_handle *_device = nullptr;
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uint8_t _endpoint_in;
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uint8_t _endpoint_out;
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uint8_t _usbTransfers;
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std::atomic<bool> _connected = false;
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std::atomic<bool> _ecnrypt = false;
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uint8_t _state;
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uint8_t _failCount;
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uint8_t _nodeviceCount;
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std::thread _read_thread;
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std::thread _buffer_thread;
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std::thread _write_thread;
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std::mutex _write_mutex;
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std::atomic<bool> _active = false;
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AtomicQueue<Command> _queue{COMMAND_QUEUE_SIZE};
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UsbContext _usbContext[MAX_USB_REQUESTS] = {};
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};
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#endif /* SRC_CONNECTOR */
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