rs-fw-update tool - handle D457 MIPI device

tools/fw-update/rs-fw-update.cpp

@@ -119,6 +119,40 @@ void list_devices(rs2::context ctx)
     }
 }
 
+int write_to_mipi_device( const std::vector< uint8_t > & fw_image)
+{
+    // Write firmware to appropriate file descritptor
+    std::cout << std::endl << "Update can take up to 2 minutes" << std::endl;
+    std::ofstream fw_path_in_device( "/dev/d4xx-dfu504", std::ios::binary );
+    if( fw_path_in_device )
+    {
+        bool done = false;
+        std::thread t1(
+            [&done]()
+            {
+                for( int i = 0; i < 101 && ! done; ++i )
+                {
+                    printf( "%d%%\r", i );
+                    std::cout.flush();
+                    std::this_thread::sleep_for( std::chrono::seconds( 1 ) );
+                }
+            } );
+        fw_path_in_device.write( reinterpret_cast< const char * >( fw_image.data() ), fw_image.size() );
+        done = true;
+        t1.join();
+        printf( "    \r" );
+    }
+    else
+    {
+        std::cout << std::endl << "Firmware Update failed - wrong path or permissions missing";
+        return EXIT_FAILURE;
+    }
+    fw_path_in_device.close();
+    std::cout << std::endl << "Firmware update done" << std::endl;
+
+    return EXIT_SUCCESS;
+}
+
 int main(int argc, char** argv) try
 {
 #ifdef BUILD_EASYLOGGINGPP
@@ -299,9 +333,10 @@ int main(int argc, char** argv) try
         if (!d.is<rs2::updatable>() || !(d.supports(RS2_CAMERA_INFO_SERIAL_NUMBER) && d.supports(RS2_CAMERA_INFO_FIRMWARE_UPDATE_ID)))
             continue;
 
+        std::string usb_type = "unknown";
         if (d.supports(RS2_CAMERA_INFO_USB_TYPE_DESCRIPTOR))
         {
-            std::string usb_type = d.get_info(RS2_CAMERA_INFO_USB_TYPE_DESCRIPTOR);
+            usb_type = d.get_info(RS2_CAMERA_INFO_USB_TYPE_DESCRIPTOR);
             if (usb_type.find("2.") != std::string::npos) {
                 std::cout << std::endl << "Warning! the camera is connected via USB 2 port, in case the process fails, connect the camera to a USB 3 port and try again" << std::endl;
             }
@@ -342,6 +377,19 @@ int main(int argc, char** argv) try
         std::cout << std::endl << "Updating device: " << std::endl;
         print_device_info(d);
 
+        // If device is D457 connected by MIPI connector
+        if( strcmp( d.get_info( RS2_CAMERA_INFO_PRODUCT_ID ), "ABCD" ) == 0 &&
+            usb_type.compare( "unknown" ) == 0)
+        {
+            if( unsigned_arg.isSet() )
+            {
+                std::cout << std::endl << "Only signed FW is currently supported for MIPI devices" << std::endl;
+                return EXIT_FAILURE;
+            }
+
+            return write_to_mipi_device( fw_image );
+        }
+
         if (unsigned_arg.isSet())
         {
             std::cout << std::endl << "Firmware update started" << std::endl << std::endl;