diff options
| -rw-r--r-- | host/lib/usrp/usrp1/mboard_impl.cpp | 63 |
1 files changed, 46 insertions, 17 deletions
diff --git a/host/lib/usrp/usrp1/mboard_impl.cpp b/host/lib/usrp/usrp1/mboard_impl.cpp index 74ec514ff..612dc732c 100644 --- a/host/lib/usrp/usrp1/mboard_impl.cpp +++ b/host/lib/usrp/usrp1/mboard_impl.cpp @@ -33,8 +33,21 @@ using namespace uhd; using namespace uhd::usrp; /*********************************************************************** - * Helper Functions + * Calculate the RX mux value: + * The I and Q mux values are intentionally reversed to flip I and Q + * to account for the reversal in the type conversion routines. **********************************************************************/ +static int calc_rx_mux_pair(int adc_for_i, int adc_for_q){ + return (adc_for_i << 2) | (adc_for_q << 0); //shift reversal here +} + +/*! + * 3 2 1 0 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-----------------------+-------+-------+-------+-------+-+-----+ + * | must be zero | Q3| I3| Q2| I2| Q1| I1| Q0| I0|Z| NCH | + * +-----------------------+-------+-------+-------+-------+-+-----+ + */ static boost::uint32_t calc_rx_mux( const subdev_spec_t &subdev_spec, wax::obj mboard ){ @@ -42,16 +55,16 @@ static boost::uint32_t calc_rx_mux( static const int ADC0 = 0, ADC1 = 1, ADC2 = 2, ADC3 = 3; static const uhd::dict<std::string, uhd::dict<subdev_conn_t, int> > name_to_conn_to_flag = boost::assign::map_list_of ("A", boost::assign::map_list_of - (SUBDEV_CONN_COMPLEX_IQ, (ADC0 << 0) | (ADC1 << 2)) //I and Q - (SUBDEV_CONN_COMPLEX_QI, (ADC1 << 0) | (ADC0 << 2)) //I and Q - (SUBDEV_CONN_REAL_I, (ADC0 << 0) | (ADC0 << 2)) //I and Q (Q identical but ignored Z=1) - (SUBDEV_CONN_REAL_Q, (ADC1 << 0) | (ADC1 << 2)) //I and Q (Q identical but ignored Z=1) + (SUBDEV_CONN_COMPLEX_IQ, calc_rx_mux_pair(ADC0, ADC1)) //I and Q + (SUBDEV_CONN_COMPLEX_QI, calc_rx_mux_pair(ADC1, ADC0)) //I and Q + (SUBDEV_CONN_REAL_I, calc_rx_mux_pair(ADC0, ADC0)) //I and Q (Q identical but ignored Z=1) + (SUBDEV_CONN_REAL_Q, calc_rx_mux_pair(ADC1, ADC1)) //I and Q (Q identical but ignored Z=1) ) ("B", boost::assign::map_list_of - (SUBDEV_CONN_COMPLEX_IQ, (ADC2 << 0) | (ADC3 << 2)) //I and Q - (SUBDEV_CONN_COMPLEX_QI, (ADC3 << 0) | (ADC2 << 2)) //I and Q - (SUBDEV_CONN_REAL_I, (ADC2 << 0) | (ADC2 << 2)) //I and Q (Q identical but ignored Z=1) - (SUBDEV_CONN_REAL_Q, (ADC3 << 0) | (ADC3 << 2)) //I and Q (Q identical but ignored Z=1) + (SUBDEV_CONN_COMPLEX_IQ, calc_rx_mux_pair(ADC2, ADC3)) //I and Q + (SUBDEV_CONN_COMPLEX_QI, calc_rx_mux_pair(ADC3, ADC2)) //I and Q + (SUBDEV_CONN_REAL_I, calc_rx_mux_pair(ADC2, ADC2)) //I and Q (Q identical but ignored Z=1) + (SUBDEV_CONN_REAL_Q, calc_rx_mux_pair(ADC3, ADC3)) //I and Q (Q identical but ignored Z=1) ) ; @@ -88,6 +101,22 @@ static boost::uint32_t calc_rx_mux( return ((channel_flags & 0xffff) << 4) | ((Z & 0x1) << 3) | ((nchan & 0x7) << 0); } +/*********************************************************************** + * Calculate the TX mux value: + * The I and Q mux values are intentionally reversed to flip I and Q + * to account for the reversal in the type conversion routines. + **********************************************************************/ +static int calc_tx_mux_pair(int chn_for_i, int chn_for_q){ + return (chn_for_i << 4) | (chn_for_q << 0); //shift reversal here +} + +/*! + * 3 2 1 0 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-----------------------+-------+-------+-------+-------+-+-----+ + * | | DAC1Q | DAC1I | DAC0Q | DAC0I |0| NCH | + * +-----------------------------------------------+-------+-+-----+ + */ static boost::uint32_t calc_tx_mux( const subdev_spec_t &subdev_spec, wax::obj mboard ){ @@ -95,16 +124,16 @@ static boost::uint32_t calc_tx_mux( static const int ENB = 1 << 3, CHAN_I0 = 0, CHAN_Q0 = 1, CHAN_I1 = 2, CHAN_Q1 = 3; static const uhd::dict<size_t, uhd::dict<subdev_conn_t, int> > chan_to_conn_to_flag = boost::assign::map_list_of (0, boost::assign::map_list_of - (SUBDEV_CONN_COMPLEX_IQ, ((CHAN_I0 | ENB) << 0) | ((CHAN_Q0 | ENB) << 4)) - (SUBDEV_CONN_COMPLEX_QI, ((CHAN_I0 | ENB) << 4) | ((CHAN_Q0 | ENB) << 0)) - (SUBDEV_CONN_REAL_I, ((CHAN_I0 | ENB) << 0)) - (SUBDEV_CONN_REAL_Q, ((CHAN_I0 | ENB) << 4)) + (SUBDEV_CONN_COMPLEX_IQ, calc_tx_mux_pair(CHAN_I0 | ENB, CHAN_Q0 | ENB)) + (SUBDEV_CONN_COMPLEX_QI, calc_tx_mux_pair(CHAN_Q0 | ENB, CHAN_I0 | ENB)) + (SUBDEV_CONN_REAL_I, calc_tx_mux_pair(CHAN_I0 | ENB, 0 )) + (SUBDEV_CONN_REAL_Q, calc_tx_mux_pair(0, CHAN_I0 | ENB)) ) (1, boost::assign::map_list_of - (SUBDEV_CONN_COMPLEX_IQ, ((CHAN_I1 | ENB) << 0) | ((CHAN_Q1 | ENB) << 4)) - (SUBDEV_CONN_COMPLEX_QI, ((CHAN_I1 | ENB) << 4) | ((CHAN_Q1 | ENB) << 0)) - (SUBDEV_CONN_REAL_I, ((CHAN_I1 | ENB) << 0)) - (SUBDEV_CONN_REAL_Q, ((CHAN_I1 | ENB) << 4)) + (SUBDEV_CONN_COMPLEX_IQ, calc_tx_mux_pair(CHAN_I1 | ENB, CHAN_Q1 | ENB)) + (SUBDEV_CONN_COMPLEX_QI, calc_tx_mux_pair(CHAN_Q1 | ENB, CHAN_I1 | ENB)) + (SUBDEV_CONN_REAL_I, calc_tx_mux_pair(CHAN_I1 | ENB, 0 )) + (SUBDEV_CONN_REAL_Q, calc_tx_mux_pair(0, CHAN_I1 | ENB)) ) ; |