mpm: Improved ad937x code

- Add gain control pin configuration
- Fixed gcc compilation
- Better docstrings

1 files changed, 141 insertions, 0 deletions

diff --git a/mpm/lib/mykonos/config/ad937x_gain_ctrl_config.cpp b/mpm/lib/mykonos/config/ad937x_gain_ctrl_config.cpp
new file mode 100644
index 000000000..f52982a96
--- /dev/null
+++ b/mpm/lib/mykonos/config/ad937x_gain_ctrl_config.cpp
@@ -0,0 +1,141 @@
+//
+// Copyright 2017 Ettus Research (National Instruments)
+//
+// 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 "ad937x_gain_ctrl_config.hpp"
+
+using namespace mpm::ad937x::gpio;
+using namespace mpm::ad937x::device;
+using namespace uhd;
+
+const uint8_t ad937x_gain_ctrl_channel_t::DEFAULT_GAIN_STEP = 1;
+const bool ad937x_gain_ctrl_channel_t::DEFAULT_ENABLE = 0;
+
+// rx uses gain, tx uses attenuation
+enum class pin_direction_t
+{
+    INCREASE,
+    DECREASE,
+};
+
+mykonosGpioSelect_t _convert_gain_pin(gain_pin_t pin)
+{
+    switch (pin)
+    {
+    case gain_pin_t::PIN0:  return MYKGPIO0;
+    case gain_pin_t::PIN1:  return MYKGPIO1;
+    case gain_pin_t::PIN2:  return MYKGPIO2;
+    case gain_pin_t::PIN3:  return MYKGPIO3;
+    case gain_pin_t::PIN4:  return MYKGPIO4;
+    case gain_pin_t::PIN5:  return MYKGPIO5;
+    case gain_pin_t::PIN6:  return MYKGPIO6;
+    case gain_pin_t::PIN7:  return MYKGPIO7;
+    case gain_pin_t::PIN8:  return MYKGPIO8;
+    case gain_pin_t::PIN9:  return MYKGPIO9;
+    case gain_pin_t::PIN10: return MYKGPIO10;
+    case gain_pin_t::PIN11: return MYKGPIO11;
+    case gain_pin_t::PIN12: return MYKGPIO12;
+    case gain_pin_t::PIN13: return MYKGPIO13;
+    case gain_pin_t::PIN14: return MYKGPIO14;
+    case gain_pin_t::PIN15: return MYKGPIO15;
+    case gain_pin_t::PIN16: return MYKGPIO16;
+    case gain_pin_t::PIN17: return MYKGPIO17;
+    case gain_pin_t::PIN18: return MYKGPIO18;
+    default: return MYKGPIONAN;
+    }
+}
+
+ad937x_gain_ctrl_channel_t::ad937x_gain_ctrl_channel_t(mykonosGpioSelect_t inc_pin, mykonosGpioSelect_t dec_pin) :
+    enable(DEFAULT_ENABLE),
+    inc_step(DEFAULT_GAIN_STEP),
+    dec_step(DEFAULT_GAIN_STEP),
+    inc_pin(inc_pin),
+    dec_pin(dec_pin)
+{
+
+}
+
+mykonosGpioSelect_t _get_gain_pin(
+    direction_t direction,
+    chain_t chain,
+    pin_direction_t pin_direction,
+    const gain_pins_t & gain_pins)
+{
+    switch (direction)
+    {
+    case RX_DIRECTION:
+        switch (chain)
+        {
+        case chain_t::ONE:
+            switch (pin_direction)
+            {
+            case pin_direction_t::INCREASE: return _convert_gain_pin(gain_pins.rx1_inc_gain_pin);
+            case pin_direction_t::DECREASE: return _convert_gain_pin(gain_pins.rx1_dec_gain_pin);
+            }
+        case chain_t::TWO:
+            switch (pin_direction)
+            {
+            case pin_direction_t::INCREASE: return _convert_gain_pin(gain_pins.rx2_inc_gain_pin);
+            case pin_direction_t::DECREASE: return _convert_gain_pin(gain_pins.rx2_dec_gain_pin);
+            }
+        }
+
+        // !!! TX is attenuation direction, so the pins are flipped !!!
+    case TX_DIRECTION:
+        switch (chain)
+        {
+        case chain_t::ONE:
+            switch (pin_direction)
+            {
+            case pin_direction_t::INCREASE: return _convert_gain_pin(gain_pins.tx1_dec_gain_pin);
+            case pin_direction_t::DECREASE: return _convert_gain_pin(gain_pins.tx1_inc_gain_pin);
+            }
+        case chain_t::TWO:
+            switch (pin_direction)
+            {
+            case pin_direction_t::INCREASE: return _convert_gain_pin(gain_pins.tx2_dec_gain_pin);
+            case pin_direction_t::DECREASE: return _convert_gain_pin(gain_pins.tx2_inc_gain_pin);
+            }
+        }
+
+    default:
+        return MYKGPIONAN;
+    }
+}
+
+ad937x_gain_ctrl_config_t::ad937x_gain_ctrl_config_t(gain_pins_t gain_pins)
+{
+    config.emplace(std::piecewise_construct, std::forward_as_tuple(RX_DIRECTION), std::forward_as_tuple());
+    config.emplace(std::piecewise_construct, std::forward_as_tuple(TX_DIRECTION), std::forward_as_tuple());
+    config.at(RX_DIRECTION).emplace(std::piecewise_construct, std::forward_as_tuple(chain_t::ONE),
+        std::forward_as_tuple(
+        _get_gain_pin(RX_DIRECTION, chain_t::ONE, pin_direction_t::INCREASE, gain_pins),
+        _get_gain_pin(RX_DIRECTION, chain_t::ONE, pin_direction_t::DECREASE, gain_pins)));
+    config.at(RX_DIRECTION).emplace(std::piecewise_construct, std::forward_as_tuple(chain_t::TWO),
+        std::forward_as_tuple(
+        _get_gain_pin(RX_DIRECTION, chain_t::TWO, pin_direction_t::INCREASE, gain_pins),
+        _get_gain_pin(RX_DIRECTION, chain_t::TWO, pin_direction_t::DECREASE, gain_pins)));
+
+    config.at(TX_DIRECTION).emplace(std::piecewise_construct, std::forward_as_tuple(chain_t::ONE),
+        std::forward_as_tuple(
+        _get_gain_pin(TX_DIRECTION, chain_t::ONE, pin_direction_t::INCREASE, gain_pins),
+        _get_gain_pin(TX_DIRECTION, chain_t::ONE, pin_direction_t::DECREASE, gain_pins)));
+    config.at(TX_DIRECTION).emplace(std::piecewise_construct, std::forward_as_tuple(chain_t::TWO),
+        std::forward_as_tuple(
+        _get_gain_pin(TX_DIRECTION, chain_t::TWO, pin_direction_t::INCREASE, gain_pins),
+        _get_gain_pin(TX_DIRECTION, chain_t::TWO, pin_direction_t::DECREASE, gain_pins)));
+}
+