diff options
| -rw-r--r-- | host/lib/usrp/usrp2/usrp2_iface.cpp | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/host/lib/usrp/usrp2/usrp2_iface.cpp b/host/lib/usrp/usrp2/usrp2_iface.cpp index 6e1d69044..6b3409ecc 100644 --- a/host/lib/usrp/usrp2/usrp2_iface.cpp +++ b/host/lib/usrp/usrp2/usrp2_iface.cpp @@ -46,9 +46,20 @@ public: /*********************************************************************** * Structors **********************************************************************/ - usrp2_iface_impl(udp_simple::sptr ctrl_transport){ - _ctrl_transport = ctrl_transport; - _ctrl_seq_num = 0; + usrp2_iface_impl(udp_simple::sptr ctrl_transport): + _ctrl_transport(ctrl_transport), + _ctrl_seq_num(0), + _protocol_compat(0) //initialized below... + { + //Obtain the firmware's compat number. + //Save the response compat number for communication. + //TODO can choose to reject certain older compat numbers + usrp2_ctrl_data_t ctrl_data; + ctrl_data.id = htonl(USRP2_CTRL_ID_WAZZUP_BRO); + ctrl_data = ctrl_send_and_recv(ctrl_data, 0, ~0); + if (ntohl(ctrl_data.id) != USRP2_CTRL_ID_WAZZUP_DUDE) + throw uhd::runtime_error("firmware not responding"); + _protocol_compat = ntohl(ctrl_data.proto_ver); mb_eeprom = mboard_eeprom_t(*this, mboard_eeprom_t::MAP_N100); switch(this->get_rev()){ @@ -238,7 +249,7 @@ public: //fill in the seq number and send usrp2_ctrl_data_t out_copy = out_data; - out_copy.proto_ver = htonl(USRP2_FW_COMPAT_NUM); + out_copy.proto_ver = htonl(_protocol_compat); out_copy.seq = htonl(++_ctrl_seq_num); _ctrl_transport->send(boost::asio::buffer(&out_copy, sizeof(usrp2_ctrl_data_t))); @@ -292,6 +303,7 @@ private: //used in send/recv boost::mutex _ctrl_mutex; boost::uint32_t _ctrl_seq_num; + boost::uint32_t _protocol_compat; /*********************************************************************** * Private Templated Peek and Poke |