usrp1: implemented properties interface on usrp1

1 files changed, 156 insertions, 0 deletions

diff --git a/host/lib/usrp/usrp1/usrp1_calc_mux.hpp b/host/lib/usrp/usrp1/usrp1_calc_mux.hpp
new file mode 100644
index 000000000..31c190db0
--- /dev/null
+++ b/host/lib/usrp/usrp1/usrp1_calc_mux.hpp
@@ -0,0 +1,156 @@
+//
+// Copyright 2010-2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/config.hpp>
+#include <uhd/exception.hpp>
+#include <uhd/types/dict.hpp>
+#include <uhd/utils/algorithm.hpp>
+#include <boost/assign/list_of.hpp>
+#include <boost/format.hpp>
+#include <utility>
+#include <vector>
+#include <string>
+
+#ifndef INCLUDED_USRP1_CALC_MUX_HPP
+#define INCLUDED_USRP1_CALC_MUX_HPP
+
+//db_name, conn_type for the mux calculations below...
+typedef std::pair<std::string, std::string> mapping_pair_t;
+
+/***********************************************************************
+ * 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 std::vector<mapping_pair_t> &mapping){
+    //create look-up-table for mapping dboard name and connection type to ADC flags
+    static const int ADC0 = 0, ADC1 = 1, ADC2 = 2, ADC3 = 3;
+    static const uhd::dict<std::string, uhd::dict<std::string, int> > name_to_conn_to_flag = boost::assign::map_list_of
+        ("A", boost::assign::map_list_of
+            ("IQ", calc_rx_mux_pair(ADC0, ADC1)) //I and Q
+            ("QI", calc_rx_mux_pair(ADC1, ADC0)) //I and Q
+            ("I",  calc_rx_mux_pair(ADC0, ADC0)) //I and Q (Q identical but ignored Z=1)
+            ("Q",  calc_rx_mux_pair(ADC1, ADC1)) //I and Q (Q identical but ignored Z=1)
+        )
+        ("B", boost::assign::map_list_of
+            ("IQ", calc_rx_mux_pair(ADC2, ADC3)) //I and Q
+            ("QI", calc_rx_mux_pair(ADC3, ADC2)) //I and Q
+            ("I",  calc_rx_mux_pair(ADC2, ADC2)) //I and Q (Q identical but ignored Z=1)
+            ("Q",  calc_rx_mux_pair(ADC3, ADC3)) //I and Q (Q identical but ignored Z=1)
+        )
+    ;
+
+    //extract the number of channels
+    const size_t nchan = mapping.size();
+
+    //calculate the channel flags
+    int channel_flags = 0;
+    size_t num_reals = 0, num_quads = 0;
+    BOOST_FOREACH(const mapping_pair_t &pair, uhd::reversed(mapping)){
+        const std::string name = pair.first, conn = pair.second;
+        if (conn == "IQ" or conn == "QI") num_quads++;
+        if (conn == "I" or conn == "Q") num_reals++;
+        channel_flags = (channel_flags << 4) | name_to_conn_to_flag[name][conn];
+    }
+
+    //calculate Z:
+    //    for all real sources: Z = 1
+    //    for all quadrature sources: Z = 0
+    //    for mixed sources: warning + Z = 0
+    int Z = (num_quads > 0)? 0 : 1;
+    if (num_quads != 0 and num_reals != 0) UHD_MSG(warning) << boost::format(
+        "Mixing real and quadrature rx subdevices is not supported.\n"
+        "The Q input to the real source(s) will be non-zero.\n"
+    );
+
+    //calculate the rx mux value
+    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 std::vector<mapping_pair_t> &mapping){
+    //create look-up-table for mapping channel number and connection type to flags
+    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<std::string, int> > chan_to_conn_to_flag = boost::assign::map_list_of
+        (0, boost::assign::map_list_of
+            ("IQ", calc_tx_mux_pair(CHAN_I0 | ENB, CHAN_Q0 | ENB))
+            ("QI", calc_tx_mux_pair(CHAN_Q0 | ENB, CHAN_I0 | ENB))
+            ("I",  calc_tx_mux_pair(CHAN_I0 | ENB, 0            ))
+            ("Q",  calc_tx_mux_pair(0,             CHAN_I0 | ENB))
+        )
+        (1, boost::assign::map_list_of
+            ("IQ", calc_tx_mux_pair(CHAN_I1 | ENB, CHAN_Q1 | ENB))
+            ("QI", calc_tx_mux_pair(CHAN_Q1 | ENB, CHAN_I1 | ENB))
+            ("I",  calc_tx_mux_pair(CHAN_I1 | ENB, 0            ))
+            ("Q",  calc_tx_mux_pair(0,             CHAN_I1 | ENB))
+        )
+    ;
+
+    //extract the number of channels
+    size_t nchan = mapping.size();
+
+    //calculate the channel flags
+    int channel_flags = 0, chan = 0;
+    uhd::dict<std::string, int> slot_to_chan_count = boost::assign::map_list_of("A", 0)("B", 0);
+    BOOST_FOREACH(const mapping_pair_t &pair, mapping){
+        const std::string name = pair.first, conn = pair.second;
+
+        //combine the channel flags: shift for slot A vs B
+        if (name == "A") channel_flags |= chan_to_conn_to_flag[chan][conn] << 0;
+        if (name == "B") channel_flags |= chan_to_conn_to_flag[chan][conn] << 8;
+
+        //sanity check, only 1 channel per slot
+        slot_to_chan_count[name]++;
+        if (slot_to_chan_count[name] > 1) throw uhd::value_error(
+            "cannot assign dboard slot to multiple channels: " + name
+        );
+
+        //increment for the next channel
+        chan++;
+    }
+
+    //calculate the tx mux value
+    return ((channel_flags & 0xffff) << 4) | ((nchan & 0x7) << 0);
+}
+
+#endif /* INCLUDED_USRP1_CALC_MUX_HPP */