1 files changed, 118 insertions, 0 deletions
diff --git a/host/lib/transport/libusb1_base.cpp b/host/lib/transport/libusb1_base.cpp
new file mode 100644
index 000000000..6965de214
--- /dev/null
+++ b/host/lib/transport/libusb1_base.cpp
@@ -0,0 +1,118 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// 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 3 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, see <http://www.gnu.org/licenses/>.
+//
+
+#include "libusb1_base.hpp"
+#include <iostream>
+
+using namespace uhd::transport;
+
+void libusb::init(libusb_context **ctx, int debug_level)
+{
+    if (libusb_init(ctx) < 0)
+        std::cerr << "error: libusb_init" << std::endl;
+
+    libusb_set_debug(*ctx, debug_level);
+}
+
+
+libusb_device_handle *libusb::open_device(libusb_context *ctx,
+                                          usb_device_handle::sptr handle)
+{
+    libusb_device **dev_list;
+    libusb_device_handle *dev_handle;
+
+    ssize_t dev_cnt = libusb_get_device_list(ctx, &dev_list);
+
+    //find and open the receive device
+    for (ssize_t i = 0; i < dev_cnt; i++) {
+        libusb_device *dev = dev_list[i];
+
+        if (compare_device(dev, handle)) {
+            libusb_open(dev, &dev_handle);
+            break;
+        }
+    }
+
+    libusb_free_device_list(dev_list, 0);
+
+    return dev_handle;
+}
+
+
+bool libusb::compare_device(libusb_device *dev,
+                            usb_device_handle::sptr handle)
+{
+    std::string serial         = handle->get_serial();
+    boost::uint16_t vendor_id  = handle->get_vendor_id();
+    boost::uint16_t product_id = handle->get_product_id();
+    boost::uint8_t device_addr = handle->get_device_addr();
+
+    libusb_device_descriptor libusb_desc;
+    if (libusb_get_device_descriptor(dev, &libusb_desc) < 0)
+        return false;
+    if (serial != get_serial(dev))
+        return false;
+    if (vendor_id != libusb_desc.idVendor)
+        return false;
+    if (product_id != libusb_desc.idProduct)
+        return false; 
+    if (device_addr != libusb_get_device_address(dev))
+        return false;
+
+    return true;
+}
+
+
+bool libusb::open_interface(libusb_device_handle *dev_handle,
+                            int interface)
+{
+    int ret = libusb_claim_interface(dev_handle, interface);
+    if (ret < 0) {
+        std::cerr << "error: libusb_claim_interface() " << ret << std::endl;
+        return false;
+    }
+    else {
+        return true;
+    }
+}
+
+
+std::string libusb::get_serial(libusb_device *dev)
+{
+    unsigned char buff[32];
+
+    libusb_device_descriptor desc;
+    if (libusb_get_device_descriptor(dev, &desc) < 0)
+        return "";
+
+    if (desc.iSerialNumber == 0)
+        return "";
+
+    //open the device because we have to
+    libusb_device_handle *dev_handle;
+    if (libusb_open(dev, &dev_handle) < 0)
+        return "";
+
+    if (libusb_get_string_descriptor_ascii(dev_handle, desc.iSerialNumber,
+                                           buff, sizeof(buff)) < 0) {
+        return "";
+    }
+
+    libusb_close(dev_handle);
+
+    return (char*) buff;
+}