diff options
| -rwxr-xr-x | host/lib/transport/gen_convert_types.py | 10 | ||||
| -rw-r--r-- | host/lib/transport/vrt_packet_handler.hpp | 30 | ||||
| -rw-r--r-- | host/lib/usrp/usrp1/io_impl.cpp | 5 |
3 files changed, 29 insertions, 16 deletions
diff --git a/host/lib/transport/gen_convert_types.py b/host/lib/transport/gen_convert_types.py index adbd22868..f9509c81d 100755 --- a/host/lib/transport/gen_convert_types.py +++ b/host/lib/transport/gen_convert_types.py @@ -99,9 +99,9 @@ void transport::convert_io_type_to_otw_type( nsamps_per_io_buff ); #else - for (size_t i = 0; i < nsamps_per_io_buff; i++){ + for (size_t i = 0, j = 0; i < nsamps_per_io_buff; i++){ #for $j in range($num_chans) - reinterpret_cast<$(out_type)_t *>(otw_buff)[i*$num_chans + $j] = + reinterpret_cast<$(out_type)_t *>(otw_buff)[j++] = #if $ph.get_swap_type($pred) == 'bswap' uhd::byteswap($(converter)(reinterpret_cast<const $(in_type)_t *>(io_buffs[$j])[i])); #else @@ -139,13 +139,13 @@ void transport::convert_otw_type_to_io_type( nsamps_per_io_buff ); #else - for (size_t i = 0; i < nsamps_per_io_buff; i++){ + for (size_t i = 0, j = 0; i < nsamps_per_io_buff; i++){ #for $j in range($num_chans) reinterpret_cast<$(out_type)_t *>(io_buffs[$j])[i] = #if $ph.get_swap_type($pred) == 'bswap' - $(converter)(uhd::byteswap(reinterpret_cast<const $(in_type)_t *>(otw_buff)[i*$num_chans + $j])); + $(converter)(uhd::byteswap(reinterpret_cast<const $(in_type)_t *>(otw_buff)[j++])); #else - $(converter)(reinterpret_cast<const $(in_type)_t *>(otw_buff)[i*$num_chans + $j]); + $(converter)(reinterpret_cast<const $(in_type)_t *>(otw_buff)[j++]); #end if #end for } diff --git a/host/lib/transport/vrt_packet_handler.hpp b/host/lib/transport/vrt_packet_handler.hpp index 7e0588f03..596989951 100644 --- a/host/lib/transport/vrt_packet_handler.hpp +++ b/host/lib/transport/vrt_packet_handler.hpp @@ -150,7 +150,8 @@ template <typename T> UHD_INLINE T get_context_code( const vrt_unpacker_t &vrt_unpacker, const get_recv_buffs_t &get_recv_buffs, const handle_overflow_t &handle_overflow, - size_t vrt_header_offset_words32 + size_t vrt_header_offset_words32, + size_t chans_per_otw_buff ){ metadata.error_code = uhd::rx_metadata_t::ERROR_CODE_NONE; @@ -184,15 +185,21 @@ template <typename T> UHD_INLINE T get_context_code( //extract the number of samples available to copy size_t bytes_per_item = otw_type.get_sample_size(); size_t nsamps_available = state.size_of_copy_buffs/bytes_per_item; - size_t nsamps_to_copy = std::min(total_samps, nsamps_available); + size_t nsamps_to_copy = std::min(total_samps*chans_per_otw_buff, nsamps_available); size_t bytes_to_copy = nsamps_to_copy*bytes_per_item; + size_t nsamps_to_copy_per_io_buff = nsamps_to_copy/chans_per_otw_buff; + + std::vector<void *> io_buffs(chans_per_otw_buff); + for (size_t i = 0; i < state.width; i+=chans_per_otw_buff){ + + //fill a vector with pointers to the io buffers + for (size_t j = 0; j < chans_per_otw_buff; j++){ + io_buffs[j] = reinterpret_cast<boost::uint8_t *>(buffs[i+j]) + offset_bytes; + } - for (size_t i = 0; i < state.width; i++){ //copy-convert the samples from the recv buffer uhd::transport::convert_otw_type_to_io_type( - state.copy_buffs[i], otw_type, - reinterpret_cast<boost::uint8_t *>(buffs[i]) + offset_bytes, - io_type, nsamps_to_copy + state.copy_buffs[i], otw_type, io_buffs, io_type, nsamps_to_copy_per_io_buff ); //update the rx copy buffer to reflect the bytes copied @@ -206,7 +213,7 @@ template <typename T> UHD_INLINE T get_context_code( metadata.fragment_offset = state.fragment_offset_in_samps; state.fragment_offset_in_samps += nsamps_to_copy; //set for next call - return nsamps_to_copy; + return nsamps_to_copy_per_io_buff; } /******************************************************************* @@ -224,7 +231,8 @@ template <typename T> UHD_INLINE T get_context_code( const vrt_unpacker_t &vrt_unpacker, const get_recv_buffs_t &get_recv_buffs, const handle_overflow_t &handle_overflow = &handle_overflow_nop, - size_t vrt_header_offset_words32 = 0 + size_t vrt_header_offset_words32 = 0, + size_t chans_per_otw_buff = 1 ){ switch(recv_mode){ @@ -241,7 +249,8 @@ template <typename T> UHD_INLINE T get_context_code( vrt_unpacker, get_recv_buffs, handle_overflow, - vrt_header_offset_words32 + vrt_header_offset_words32, + chans_per_otw_buff ); } @@ -261,7 +270,8 @@ template <typename T> UHD_INLINE T get_context_code( vrt_unpacker, get_recv_buffs, handle_overflow, - vrt_header_offset_words32 + vrt_header_offset_words32, + chans_per_otw_buff ); if (num_samps == 0) break; //had a recv timeout or error, break loop accum_num_samps += num_samps; diff --git a/host/lib/usrp/usrp1/io_impl.cpp b/host/lib/usrp/usrp1/io_impl.cpp index 7446c7f7c..a813a0462 100644 --- a/host/lib/usrp/usrp1/io_impl.cpp +++ b/host/lib/usrp/usrp1/io_impl.cpp @@ -290,7 +290,10 @@ size_t usrp1_impl::recv( io_type, _rx_otw_type, //input and output types to convert _clock_ctrl->get_master_clock_freq(), //master clock tick rate &usrp1_bs_vrt_unpacker, - boost::bind(&get_recv_buffs, _data_transport, _1) + boost::bind(&get_recv_buffs, _data_transport, _1), + &vrt_packet_handler::handle_overflow_nop, + 0, //vrt header offset + _rx_subdev_spec.size() //num channels ); //handle the polling for overflow conditions |