diff options
Diffstat (limited to 'host/lib/usrp/dsp_utils.hpp')
| -rw-r--r-- | host/lib/usrp/dsp_utils.hpp | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/host/lib/usrp/dsp_utils.hpp b/host/lib/usrp/dsp_utils.hpp index 13186f354..ebed12c41 100644 --- a/host/lib/usrp/dsp_utils.hpp +++ b/host/lib/usrp/dsp_utils.hpp @@ -22,6 +22,7 @@ #include <uhd/types/dict.hpp> #include <uhd/utils/assert.hpp> #include <uhd/types/stream_cmd.hpp> +#include <uhd/usrp/subdev_props.hpp> #include <boost/cstdint.hpp> #include <boost/assign/list_of.hpp> #include <boost/tuple/tuple.hpp> @@ -37,37 +38,36 @@ namespace dsp_type1{ /*! * Calculate the rx mux word from properties. - * \param is_quadrature true if the subdev is complex - * \param is_iq_swapped true if the i and q are reversed + * \param subdev_conn the subdev connection type * \param the 32-bit rx mux control word */ static inline boost::uint32_t calc_rx_mux_word( - bool is_quadrature, - bool is_iq_swapped + subdev_conn_t subdev_conn ){ - boost::uint32_t rx_mux = 0; - if (is_quadrature){ - rx_mux = (0x01 << 2) | (0x00 << 0); //Q=ADC1, I=ADC0 - }else{ - rx_mux = (0x11 << 2) | (0x00 << 0); //Q=ZERO, I=ADC0 + switch(subdev_conn){ + case SUBDEV_CONN_COMPLEX_IQ: return (0x1 << 2) | (0x0 << 0); //DDC0Q=ADC1, DDC0I=ADC0 + case SUBDEV_CONN_COMPLEX_QI: return (0x0 << 2) | (0x1 << 0); //DDC0Q=ADC0, DDC0I=ADC1 + case SUBDEV_CONN_REAL_I: return (0x3 << 2) | (0x0 << 0); //DDC0Q=ZERO, DDC0I=ADC0 + case SUBDEV_CONN_REAL_Q: return (0x1 << 2) | (0x3 << 0); //DDC0Q=ADC1, DDC0I=ZERO + default: UHD_THROW_INVALID_CODE_PATH(); } - if (is_iq_swapped){ - rx_mux = (rx_mux << 2) | (rx_mux >> 2); - } - return rx_mux; } /*! * Calculate the tx mux word from properties. - * \param is_iq_swapped true if the i and q are reversed + * \param subdev_conn the subdev connection type * \param the 32-bit tx mux control word */ - static inline boost::uint32_t calc_tx_mux_word(bool is_iq_swapped){ - boost::uint32_t tx_mux = 0x10; - if (is_iq_swapped){ - tx_mux = (tx_mux << 4) | (tx_mux >> 4); + static inline boost::uint32_t calc_tx_mux_word( + subdev_conn_t subdev_conn + ){ + switch(subdev_conn){ + case SUBDEV_CONN_COMPLEX_IQ: return (0x1 << 4) | (0x0 << 0); //DAC1=DUC0Q, DAC0=DUC0I + case SUBDEV_CONN_COMPLEX_QI: return (0x0 << 4) | (0x1 << 0); //DAC1=DUC0I, DAC0=DUC0Q + case SUBDEV_CONN_REAL_I: return (0xf << 4) | (0x0 << 0); //DAC1=ZERO, DAC0=DUC0I + case SUBDEV_CONN_REAL_Q: return (0x0 << 4) | (0xf << 0); //DAC1=DUC0I, DAC0=ZERO + default: UHD_THROW_INVALID_CODE_PATH(); } - return tx_mux; } /*! @@ -82,11 +82,11 @@ namespace dsp_type1{ double &freq, double codec_rate ){ - UHD_ASSERT_THROW(std::abs(freq) < codec_rate/2.0); + UHD_ASSERT_THROW(std::abs(freq) <= codec_rate/2.0); static const double scale_factor = std::pow(2.0, 32); //calculate the freq register word (signed) - boost::int32_t freq_word = boost::math::iround((freq / codec_rate) * scale_factor); + boost::int32_t freq_word = boost::int32_t(boost::math::round((freq / codec_rate) * scale_factor)); //update the actual frequency freq = (double(freq_word) / scale_factor) * codec_rate; |