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+/* sane - Scanner Access Now Easy.
+
+ Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt>
+
+ This file is part of the SANE package.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice.
+*/
+
+#ifndef BACKEND_GENESYS_USB_DEVICE_H
+#define BACKEND_GENESYS_USB_DEVICE_H
+
+#include "error.h"
+#include "../include/sane/sanei_usb.h"
+
+#include <cstdint>
+#include <string>
+
+namespace genesys {
+
+class IUsbDevice {
+public:
+ IUsbDevice() = default;
+
+ IUsbDevice(const IUsbDevice& other) = delete;
+ IUsbDevice& operator=(const IUsbDevice&) = delete;
+
+ virtual ~IUsbDevice();
+
+ virtual bool is_open() const = 0;
+
+ virtual const std::string& name() const = 0;
+
+ virtual void open(const char* dev_name) = 0;
+
+ virtual void clear_halt() = 0;
+ virtual void reset() = 0;
+ virtual void close() = 0;
+
+ virtual void get_vendor_product(int& vendor, int& product) = 0;
+
+ virtual void control_msg(int rtype, int reg, int value, int index, int length,
+ std::uint8_t* data) = 0;
+ virtual void bulk_read(std::uint8_t* buffer, std::size_t* size) = 0;
+ virtual void bulk_write(const std::uint8_t* buffer, std::size_t* size) = 0;
+
+};
+
+class UsbDevice : public IUsbDevice {
+public:
+ UsbDevice() = default;
+
+ ~UsbDevice() override;
+
+ bool is_open() const override { return is_open_; }
+
+ const std::string& name() const override { return name_; }
+
+ void open(const char* dev_name) override;
+
+ void clear_halt() override;
+ void reset() override;
+ void close() override;
+
+ void get_vendor_product(int& vendor, int& product) override;
+
+ void control_msg(int rtype, int reg, int value, int index, int length,
+ std::uint8_t* data) override;
+ void bulk_read(std::uint8_t* buffer, std::size_t* size) override;
+ void bulk_write(const std::uint8_t* buffer, std::size_t* size) override;
+
+private:
+
+ void assert_is_open() const;
+ void set_not_open();
+
+ std::string name_;
+ bool is_open_ = false;
+ int device_num_ = 0;
+};
+
+} // namespace genesys
+
+#endif // BACKEND_GENESYS_USB_DEVICE_H