WBX: Add support for WBX v3 daughterboards

3 files changed, 91 insertions, 14 deletions

diff --git a/host/lib/usrp/dboard/db_wbx_common.cpp b/host/lib/usrp/dboard/db_wbx_common.cpp
index a1b1437a2..1a016e89c 100644
--- a/host/lib/usrp/dboard/db_wbx_common.cpp
+++ b/host/lib/usrp/dboard/db_wbx_common.cpp
@@ -35,6 +35,14 @@
 #define RX_ATTN_SHIFT   8                       // lsb of RX Attenuator Control
 #define RX_ATTN_MASK    (63 << RX_ATTN_SHIFT)      // valid bits of RX Attenuator Control
 
+// TX Attenuator Pins (v3 only)
+#define TX_ATTN_16      (1 << 14)
+#define TX_ATTN_8       (1 << 5)
+#define TX_ATTN_4       (1 << 4)
+#define TX_ATTN_2       (1 << 3)
+#define TX_ATTN_1       (1 << 1)
+#define TX_ATTN_MASK    (TX_ATTN_16|TX_ATTN_8|TX_ATTN_4|TX_ATTN_2|TX_ATTN_1)      // valid bits of TX Attenuator Control
+
 // Mixer functions
 #define TX_MIXER_ENB    (TXMOD_EN|ADF4350_PDBRF)
 #define TX_MIXER_DIS    0
@@ -43,7 +51,7 @@
 #define RX_MIXER_DIS    0
 
 // Power functions
-#define TX_POWER_UP     (TX_PUP_5V|TX_PUP_3V|ADF4350_CE) // high enables power supply
+#define TX_POWER_UP     (TX_PUP_5V|TX_PUP_3V) // high enables power supply
 #define TX_POWER_DOWN   0
 
 #define RX_POWER_UP     (RX_PUP_5V|RX_PUP_3V|ADF4350_CE) // high enables power supply
@@ -75,6 +83,10 @@ static const uhd::dict<std::string, gain_range_t> wbx_tx_gain_ranges = map_list_
     ("PGA0", gain_range_t(0, 25, 0.05))
 ;
 
+static const uhd::dict<std::string, gain_range_t> wbx_v3_tx_gain_ranges = map_list_of
+    ("PGA0", gain_range_t(0, 31, 1.0))
+;
+
 static const uhd::dict<std::string, gain_range_t> wbx_rx_gain_ranges = map_list_of
     ("PGA0", gain_range_t(0, 31.5, 0.5))
 ;
@@ -88,10 +100,13 @@ wbx_base::wbx_base(ctor_args_t args) : xcvr_dboard_base(args){
     this->get_iface()->set_clock_enabled(dboard_iface::UNIT_TX, true);
     this->get_iface()->set_clock_enabled(dboard_iface::UNIT_RX, true);
 
+    //v3 has different io bits for attenuator control
+    int v3_iobits = is_v3() ? TX_ATTN_MASK : ADF4350_CE;
+
     //set the gpio directions and atr controls
     this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_TX, TXMOD_EN|ADF4350_PDBRF);
     this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_RX, RXBB_PDB|ADF4350_PDBRF);
-    this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_TX, TX_PUP_5V|TX_PUP_3V|ADF4350_CE|TXMOD_EN|ADF4350_PDBRF);
+    this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_TX, TX_PUP_5V|TX_PUP_3V|TXMOD_EN|ADF4350_PDBRF|v3_iobits);
     this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_RX, RX_PUP_5V|RX_PUP_3V|ADF4350_CE|RXBB_PDB|ADF4350_PDBRF|RX_ATTN_MASK);
 
     //setup ATR for the mixer enables (always enabled to prevent phase slip between bursts)
@@ -106,9 +121,17 @@ wbx_base::wbx_base(ctor_args_t args) : xcvr_dboard_base(args){
     this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_FULL_DUPLEX, RX_MIXER_ENB, RX_MIXER_DIS | RX_MIXER_ENB);
 
     //set some default values
-    BOOST_FOREACH(const std::string &name, wbx_tx_gain_ranges.keys()){
-        set_tx_gain(wbx_tx_gain_ranges[name].start(), name);
+    if (is_v3()) {
+        BOOST_FOREACH(const std::string &name, wbx_v3_tx_gain_ranges.keys()){
+            set_tx_gain(wbx_v3_tx_gain_ranges[name].start(), name);
+        }
+    }
+    else {
+        BOOST_FOREACH(const std::string &name, wbx_tx_gain_ranges.keys()){
+            set_tx_gain(wbx_tx_gain_ranges[name].start(), name);
+        }
     }
+
     BOOST_FOREACH(const std::string &name, wbx_rx_gain_ranges.keys()){
         set_rx_gain(wbx_rx_gain_ranges[name].start(), name);
     }
@@ -131,7 +154,7 @@ void wbx_base::set_rx_enabled(bool enb){
 
 void wbx_base::set_tx_enabled(bool enb){
     this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX,
-        (enb)? TX_POWER_UP : TX_POWER_DOWN, TX_POWER_UP | TX_POWER_DOWN
+        (enb)? TX_POWER_UP | ADF4350_CE : TX_POWER_DOWN, TX_POWER_UP | TX_POWER_DOWN | (is_v3() ? 0 : ADF4350_CE)
     );
 }
 
@@ -150,7 +173,7 @@ static int rx_pga0_gain_to_iobits(double &gain){
     int iobits = ((~attn_code) << RX_ATTN_SHIFT) & RX_ATTN_MASK;
 
     UHD_LOGV(often) << boost::format(
-        "WBX Attenuation: %f dB, Code: %d, IO Bits %x, Mask: %x"
+        "WBX RX Attenuation: %f dB, Code: %d, IO Bits %x, Mask: %x"
     ) % attn % attn_code % (iobits & RX_ATTN_MASK) % RX_ATTN_MASK << std::endl;
 
     //the actual gain setting
@@ -159,6 +182,35 @@ static int rx_pga0_gain_to_iobits(double &gain){
     return iobits;
 }
 
+//v3 TX gains
+static int tx_pga0_gain_to_iobits(double &gain){
+    //clip the input
+    gain = wbx_v3_tx_gain_ranges["PGA0"].clip(gain);
+
+    //convert to attenuation
+    double attn = wbx_v3_tx_gain_ranges["PGA0"].stop() - gain;
+
+    //calculate the attenuation
+    int attn_code = boost::math::iround(attn*2);
+    int iobits = (
+            (attn_code & 16 ? 0 : TX_ATTN_16) |
+            (attn_code &  8 ? 0 : TX_ATTN_8) |
+            (attn_code &  4 ? 0 : TX_ATTN_4) |
+            (attn_code &  2 ? 0 : TX_ATTN_2) |
+            (attn_code &  1 ? 0 : TX_ATTN_1) 
+        ) & TX_ATTN_MASK;
+
+    UHD_LOGV(often) << boost::format(
+        "WBX TX Attenuation: %f dB, Code: %d, IO Bits %x, Mask: %x"
+    ) % attn % attn_code % (iobits & TX_ATTN_MASK) % TX_ATTN_MASK << std::endl;
+
+    //the actual gain setting
+    gain = wbx_v3_tx_gain_ranges["PGA0"].stop() - double(attn_code)/2;
+
+    return iobits;
+}
+
+//Pre v3 TX gains
 static double tx_pga0_gain_to_dac_volts(double &gain){
     //clip the input
     gain = wbx_tx_gain_ranges["PGA0"].clip(gain);
@@ -181,15 +233,28 @@ static double tx_pga0_gain_to_dac_volts(double &gain){
 }
 
 void wbx_base::set_tx_gain(double gain, const std::string &name){
-    assert_has(wbx_tx_gain_ranges.keys(), name, "wbx tx gain name");
-    if(name == "PGA0"){
-        double dac_volts = tx_pga0_gain_to_dac_volts(gain);
-        _tx_gains[name] = gain;
-
-        //write the new voltage to the aux dac
-        this->get_iface()->write_aux_dac(dboard_iface::UNIT_TX, dboard_iface::AUX_DAC_A, dac_volts);
+    if (is_v3()) {
+        assert_has(wbx_v3_tx_gain_ranges.keys(), name, "wbx tx gain name");
+        if(name == "PGA0"){
+            double dac_volts = tx_pga0_gain_to_iobits(gain);
+            _tx_gains[name] = gain;
+
+            //write the new voltage to the aux dac
+            this->get_iface()->write_aux_dac(dboard_iface::UNIT_TX, dboard_iface::AUX_DAC_A, dac_volts);
+        }
+        else UHD_THROW_INVALID_CODE_PATH();
+    }
+    else {
+        assert_has(wbx_tx_gain_ranges.keys(), name, "wbx tx gain name");
+        if(name == "PGA0"){
+            double dac_volts = tx_pga0_gain_to_dac_volts(gain);
+            _tx_gains[name] = gain;
+
+            //write the new voltage to the aux dac
+            this->get_iface()->write_aux_dac(dboard_iface::UNIT_TX, dboard_iface::AUX_DAC_A, dac_volts);
+        }
+        else UHD_THROW_INVALID_CODE_PATH();
     }
-    else UHD_THROW_INVALID_CODE_PATH();
 }
 
 void wbx_base::set_rx_gain(double gain, const std::string &name){
@@ -381,6 +446,10 @@ bool wbx_base::get_locked(dboard_iface::unit_t unit){
     return (this->get_iface()->read_gpio(unit) & LOCKDET_MASK) != 0;
 }
 
+bool wbx_base::is_v3(void){
+    return get_rx_id() == 0x057;
+}
+
 /***********************************************************************
  * RX Get and Set
  **********************************************************************/
diff --git a/host/lib/usrp/dboard/db_wbx_common.hpp b/host/lib/usrp/dboard/db_wbx_common.hpp
index 07e84a565..5d33ddce9 100644
--- a/host/lib/usrp/dboard/db_wbx_common.hpp
+++ b/host/lib/usrp/dboard/db_wbx_common.hpp
@@ -62,6 +62,12 @@ protected:
      */
     virtual bool get_locked(dboard_iface::unit_t unit);
 
+    /*!
+     * Detect if this a v3 WBX
+     * \return true for locked
+     */
+    virtual bool is_v3(void);
+
 private:
     uhd::dict<std::string, double> _tx_gains, _rx_gains;
     bool _rx_enabled, _tx_enabled;
diff --git a/host/lib/usrp/dboard/db_wbx_simple.cpp b/host/lib/usrp/dboard/db_wbx_simple.cpp
index 82405135e..602ce389d 100644
--- a/host/lib/usrp/dboard/db_wbx_simple.cpp
+++ b/host/lib/usrp/dboard/db_wbx_simple.cpp
@@ -76,6 +76,8 @@ static dboard_base::sptr make_wbx_simple(dboard_base::ctor_args_t args){
 UHD_STATIC_BLOCK(reg_wbx_simple_dboards){
     dboard_manager::register_dboard(0x0053, 0x0052, &make_wbx_simple, "WBX");
     dboard_manager::register_dboard(0x0053, 0x004f, &make_wbx_simple, "WBX + Simple GDB");
+    dboard_manager::register_dboard(0x0057, 0x0056, &make_wbx_simple, "WBX v3");
+    dboard_manager::register_dboard(0x0057, 0x004f, &make_wbx_simple, "WBX v3 + Simple GDB");
 }
 
 /***********************************************************************