add dummy device for ledger

src/device/device_io_dummy.hpp

@@ -0,0 +1,82 @@
+// Copyright (c) 2017-2022, 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.
+//
+#ifdef HIDAPI_DUMMY
+
+#pragma once
+
+#include "device_io.hpp"
+#include "device_io_hid.hpp"
+#include <mutex>
+#include <condition_variable>
+
+namespace hw {
+    namespace io {
+        struct hid_conn_params {
+            unsigned int vid;
+            unsigned int pid;
+            int interface_number;
+            unsigned short usage_page;
+        };
+        class device_io_dummy : device_io {
+        private:
+            static std::mutex mutex;
+
+        public:
+            static std::condition_variable cv_send;
+            static std::condition_variable cv_receive;
+            static bool stateIsConnected;
+            static unsigned char* sendToDevice;
+            static size_t sendToDeviceLength;
+            static unsigned char* receivedFromDevice;
+            static size_t receivedFromDeviceLength;
+            static bool waitsForDeviceSend;
+            static bool waitsForDeviceReceive;
+            static void (*sendToLedgerDeviceCallback)(unsigned char *command, unsigned int cmd_len);
+
+            device_io_dummy()  = default;
+            device_io_dummy(int a, int b, int c, int d);
+            ~device_io_dummy() = default;
+
+            void init();
+            void release();
+
+            void connect(void *parms);
+            void connect(const std::vector<hw::io::hid_conn_params>& known_devices);
+            void disconnect();
+            bool connected() const;
+
+            int exchange(unsigned char *command, unsigned int cmd_len, unsigned char *response, unsigned int max_resp_len, bool user_input);
+
+            static void setLedgerCallback(void (*sendToLedgerDevice)(unsigned char *command, unsigned int cmd_len));
+            static void setDeviceReceivedData(unsigned char* data, size_t len);
+        };
+    };
+};
+
+#endif // HAVE_HIDAPI