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// Copyright (c) 2017-2019, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
#if defined(HAVE_HIDAPI)
#include <boost/optional/optional.hpp>
#include <hidapi/hidapi.h>
#include "device_io.hpp"
#pragma once
namespace hw {
namespace io {
/** HID class base. Commands are formated as follow:
*
* |----------------------------------------------------------|
* | 2 bytes | 1 byte | 2 bytes | 2 bytes | len bytes |
* |-----------|----------|-----------|----------|------------|
* | channel | tag | sequence | len | payload |
* |----------------------------------------------------------|
*/
struct hid_conn_params {
unsigned int vid;
unsigned int pid;
int interface_number;
unsigned short usage_page;
};
class device_io_hid: device_io {
private:
unsigned short channel;
unsigned char tag;
unsigned int packet_size;
unsigned int timeout;
unsigned int usb_vid;
unsigned int usb_pid;
hid_device *usb_device;
void io_hid_log(int read, unsigned char* buf, int buf_len);
void io_hid_init();
void io_hid_exit() ;
void io_hid_open(int vid, int pid, int mode);
void io_hid_close (void);
unsigned int wrapCommand(const unsigned char *command, size_t command_len, unsigned char *out, size_t out_len);
unsigned int unwrapReponse(const unsigned char *data, size_t data_len, unsigned char *out, size_t out_len);
hid_device_info *find_device(hid_device_info *devices_list, boost::optional<int> interface_number, boost::optional<unsigned short> usage_page);
public:
bool hid_verbose = false;
static const unsigned short DEFAULT_CHANNEL = 0x0001;
static const unsigned char DEFAULT_TAG = 0x01;
static const unsigned int DEFAULT_PACKET_SIZE = 64;
static const unsigned int DEFAULT_TIMEOUT = 120000;
device_io_hid(unsigned short channel, unsigned char tag, unsigned int packet_zize, unsigned int timeout);
device_io_hid();
~device_io_hid() {};
void init();
void connect(void *params);
void connect(const std::vector<hid_conn_params> &conn);
hid_device *connect(unsigned int vid, unsigned int pid, boost::optional<int> interface_number, boost::optional<unsigned short> usage_page);
bool connected() const;
int exchange(unsigned char *command, unsigned int cmd_len, unsigned char *response, unsigned int max_resp_len, bool user_input);
void disconnect();
void release();
};
};
};
#endif //#if defined(HAVE_HIDAPI)
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