diff options
Diffstat (limited to 'host/lib/usrp/usrp_e/io_impl.cpp')
| -rw-r--r-- | host/lib/usrp/usrp_e/io_impl.cpp | 43 |
1 files changed, 30 insertions, 13 deletions
diff --git a/host/lib/usrp/usrp_e/io_impl.cpp b/host/lib/usrp/usrp_e/io_impl.cpp index 2802a6b87..406b7269f 100644 --- a/host/lib/usrp/usrp_e/io_impl.cpp +++ b/host/lib/usrp/usrp_e/io_impl.cpp @@ -91,7 +91,6 @@ void usrp_e_impl::io_impl::recv_pirate_loop( ){ set_thread_priority_safe(); recv_pirate_crew_raiding = true; - //size_t next_packet_seq = 0; while(recv_pirate_crew_raiding){ managed_recv_buffer::sptr buff = this->data_xport->get_recv_buff(); @@ -143,6 +142,15 @@ void usrp_e_impl::io_impl::recv_pirate_loop( * Helper Functions **********************************************************************/ void usrp_e_impl::io_init(void){ + //setup otw types + _send_otw_type.width = 16; + _send_otw_type.shift = 0; + _send_otw_type.byteorder = otw_type_t::BO_LITTLE_ENDIAN; + + _recv_otw_type.width = 16; + _recv_otw_type.shift = 0; + _recv_otw_type.byteorder = otw_type_t::BO_LITTLE_ENDIAN; + //setup rx data path _iface->poke32(UE_REG_CTRL_RX_NSAMPS_PER_PKT, get_max_recv_samps_per_packet()); _iface->poke32(UE_REG_CTRL_RX_NCHANNELS, 1); @@ -197,21 +205,25 @@ bool get_send_buffs( return buffs[0].get() != NULL; } +size_t usrp_e_impl::get_max_send_samps_per_packet(void) const{ + static const size_t hdr_size = 0 + + vrt::max_if_hdr_words32*sizeof(boost::uint32_t) + - sizeof(vrt::if_packet_info_t().cid) //no class id ever used + ; + size_t bpp = _io_impl->data_xport->get_send_frame_size() - hdr_size; + return bpp/_send_otw_type.get_sample_size(); +} + size_t usrp_e_impl::send( const std::vector<const void *> &buffs, size_t num_samps, const tx_metadata_t &metadata, const io_type_t &io_type, send_mode_t send_mode, double timeout ){ - otw_type_t send_otw_type; - send_otw_type.width = 16; - send_otw_type.shift = 0; - send_otw_type.byteorder = otw_type_t::BO_LITTLE_ENDIAN; - return vrt_packet_handler::send( _io_impl->packet_handler_send_state, //last state of the send handler buffs, num_samps, //buffer to fill metadata, send_mode, //samples metadata - io_type, send_otw_type, //input and output types to convert + io_type, _send_otw_type, //input and output types to convert MASTER_CLOCK_RATE, //master clock tick rate uhd::transport::vrt::if_hdr_pack_le, boost::bind(&get_send_buffs, _io_impl->data_xport, timeout, _1), @@ -222,21 +234,26 @@ size_t usrp_e_impl::send( /*********************************************************************** * Data Recv **********************************************************************/ +size_t usrp_e_impl::get_max_recv_samps_per_packet(void) const{ + static const size_t hdr_size = 0 + + vrt::max_if_hdr_words32*sizeof(boost::uint32_t) + + sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer + - sizeof(vrt::if_packet_info_t().cid) //no class id ever used + ; + size_t bpp = _io_impl->data_xport->get_recv_frame_size() - hdr_size; + return bpp/_recv_otw_type.get_sample_size(); +} + size_t usrp_e_impl::recv( const std::vector<void *> &buffs, size_t num_samps, rx_metadata_t &metadata, const io_type_t &io_type, recv_mode_t recv_mode, double timeout ){ - otw_type_t recv_otw_type; - recv_otw_type.width = 16; - recv_otw_type.shift = 0; - recv_otw_type.byteorder = otw_type_t::BO_LITTLE_ENDIAN; - return vrt_packet_handler::recv( _io_impl->packet_handler_recv_state, //last state of the recv handler buffs, num_samps, //buffer to fill metadata, recv_mode, //samples metadata - io_type, recv_otw_type, //input and output types to convert + io_type, _recv_otw_type, //input and output types to convert MASTER_CLOCK_RATE, //master clock tick rate uhd::transport::vrt::if_hdr_unpack_le, boost::bind(&usrp_e_impl::io_impl::get_recv_buffs, _io_impl.get(), _1, timeout), |