diff options
Diffstat (limited to 'host')
| -rw-r--r-- | host/lib/usrp/dboard/magnesium/magnesium_radio_ctrl_init.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/host/lib/usrp/dboard/magnesium/magnesium_radio_ctrl_init.cpp b/host/lib/usrp/dboard/magnesium/magnesium_radio_ctrl_init.cpp index 45c1794c3..2b842cbcf 100644 --- a/host/lib/usrp/dboard/magnesium/magnesium_radio_ctrl_init.cpp +++ b/host/lib/usrp/dboard/magnesium/magnesium_radio_ctrl_init.cpp @@ -10,6 +10,7 @@ #include <uhd/utils/log.hpp> #include <uhd/types/eeprom.hpp> #include <uhd/types/sensors.hpp> +#include <uhd/transport/chdr.hpp> #include <vector> #include <string> @@ -50,6 +51,17 @@ void magnesium_radio_ctrl_impl::_init_defaults() radio_ctrl_impl::set_tx_gain(0, chan); radio_ctrl_impl::set_tx_antenna(MAGNESIUM_DEFAULT_TX_ANTENNA, chan); } + + + /** Update default SPP (overwrites the default value from the XML file) **/ + const size_t max_bytes_header = + uhd::transport::vrt::chdr::max_if_hdr_words64 * sizeof(uint64_t); + const size_t default_spp = + (_tree->access<size_t>("mtu/recv").get() - max_bytes_header) + / (2 * sizeof(int16_t)); + UHD_LOG_DEBUG(unique_id(), + "Setting default spp to " << default_spp); + _tree->access<int>(get_arg_path("spp") / "value").set(default_spp); } void magnesium_radio_ctrl_impl::_init_peripherals() |