Merged r9433:9527 from features/gr-usrp2 into trunk. Adds usrp2 and gr-usrp2 top-level components. Trunk passes distcheck with mb-gcc installed, but currently not without them. The key issue is that when mb-gcc is not installed, the build system skips over the usrp2/firmware directory, and the firmware include files don't get put into the dist tarball. But we can't do the usual DIST_SUBDIRS method as the firmware is a subpackage.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9528 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 76 insertions, 0 deletions

diff --git a/gr-usrp2/src/rx_32fc_handler.h b/gr-usrp2/src/rx_32fc_handler.h
new file mode 100644
index 000000000..875027968
--- /dev/null
+++ b/gr-usrp2/src/rx_32fc_handler.h
@@ -0,0 +1,76 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2008 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio 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, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_RX_32FC_HANDLER_H
+#define INCLUDED_RX_32FC_HANDLER_H
+
+#include <usrp2/rx_nop_handler.h>
+#include <usrp2/copiers.h>
+#include <gr_complex.h>
+
+#define RX_32FC_HANDLER_DEBUG 0
+
+class rx_32fc_handler : public usrp2::rx_nop_handler
+{
+  gr_complex *d_dest;
+
+  // Private constructor
+  rx_32fc_handler(uint64_t max_samples, uint64_t max_quantum, gr_complex *dest)
+    : rx_nop_handler(max_samples, max_quantum), d_dest(dest) {}
+
+public:
+  // Shared pointer to one of these
+  typedef boost::shared_ptr<rx_32fc_handler> sptr;
+
+  // Factory function to return a shared pointer to a new instance
+  static sptr make(uint64_t max_samples, uint64_t max_quantum, gr_complex *dest) 
+  {
+    if (RX_32FC_HANDLER_DEBUG)
+      printf("rx_32fc_handler: max_samples=%li max_quantum=%li\n", max_samples, max_quantum);
+      
+    return sptr(new rx_32fc_handler(max_samples, max_quantum, dest));
+  }
+
+  // Invoked by USRP2 API when samples are available
+  bool operator()(const uint32_t *items, size_t nitems, const usrp2::rx_metadata *metadata)
+  {
+    if (RX_32FC_HANDLER_DEBUG)
+      printf("rx_32fc_handler: called with items=%zu ", nitems);
+
+    // Copy/reformat/endian swap USRP2 data to destination buffer
+    usrp2::copy_u2_complex_16_to_host_complex_float(nitems, items, d_dest);
+    d_dest += nitems;
+
+    // FIXME: do something with metadata
+
+    // Determine if there is room to be called again
+    bool ok = rx_nop_handler::operator()(items, nitems, metadata);
+    if (RX_32FC_HANDLER_DEBUG)
+      printf("ok to call again=%i\n", ok);
+
+    return ok;
+  }
+
+  ~rx_32fc_handler();
+};
+
+#endif /* INCLUDED_RX_32FC_HANDLER_H */