e310/e320: Move E310 to MPM architecture and refactor

- Turns the E310 into an MPM device (like N3xx, E320)
- Factor out common code between E320 and E310, maximize sharing between
  the two devices
- Remove all pre-MPM E310 code that is no longer needed
- Modify MPM to remove all existing overlays before applying new ones
  (this is necessary to enable idle image mode for E310)

Co-authored-by: Virendra Kakade <virendra.kakade@ni.com>
Signed-off-by: Virendra Kakade <virendra.kakade@ni.com>

1 files changed, 272 insertions, 0 deletions

diff --git a/host/lib/usrp/dboard/e3xx/e320_radio_ctrl_impl.cpp b/host/lib/usrp/dboard/e3xx/e320_radio_ctrl_impl.cpp
new file mode 100644
index 000000000..c48cabc9c
--- /dev/null
+++ b/host/lib/usrp/dboard/e3xx/e320_radio_ctrl_impl.cpp
@@ -0,0 +1,272 @@
+//
+// Copyright 2018 Ettus Research, a National Instruments Company
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#include "e320_radio_ctrl_impl.hpp"
+#include "e320_regs.hpp"
+
+using namespace uhd;
+using namespace uhd::usrp;
+using namespace uhd::rfnoc;
+
+e320_radio_ctrl_impl::e320_radio_ctrl_impl(const make_args_t& make_args)
+    : block_ctrl_base(make_args)
+{
+    UHD_LOG_TRACE(unique_id(), "Entering e320_radio_ctrl_impl ctor...");
+    // Don't swap front ends for E320
+    _fe_swap = false;
+}
+
+e320_radio_ctrl_impl::~e320_radio_ctrl_impl()
+{
+    UHD_LOG_TRACE(unique_id(), "e320_radio_ctrl_impl::dtor() ");
+}
+
+/******************************************************************************
+ * API Calls
+ *****************************************************************************/
+bool e320_radio_ctrl_impl::check_radio_config()
+{
+    // mapping of frontend to radio perif index
+    static const size_t FE0 = 0;
+    static const size_t FE1 = 1;
+    const size_t num_rx =
+        _is_streamer_active(RX_DIRECTION, FE0) + _is_streamer_active(RX_DIRECTION, FE1);
+    const size_t num_tx =
+        _is_streamer_active(TX_DIRECTION, FE0) + _is_streamer_active(TX_DIRECTION, FE1);
+
+    // setup the active chains in the codec
+    if ((num_rx + num_tx) == 0) {
+        // Ensure at least one RX chain is enabled so AD9361 outputs a sample clock
+        this->set_streaming_mode(true, false, true, false);
+    } else {
+        this->set_streaming_mode(_is_streamer_active(TX_DIRECTION, FE0),
+            _is_streamer_active(TX_DIRECTION, FE1),
+            _is_streamer_active(RX_DIRECTION, FE0),
+            _is_streamer_active(RX_DIRECTION, FE1));
+    }
+    return true;
+}
+
+/*  loopback_self_test checks the integrity of the FPGA->AD936x->FPGA sample interface.
+    The AD936x is put in loopback mode that sends the TX data unchanged to the RX side.
+    A test value is written to the codec_idle register in the TX side of the radio.
+    The readback register is then used to capture the values on the TX and RX sides
+    simultaneously for comparison. It is a reasonably effective test for AC timing
+    since I/Q Ch0/Ch1 alternate over the same wires. Note, however, that it uses
+    whatever timing is configured at the time the test is called rather than select
+    worst case conditions to stress the interface.
+    Note: This currently only tests 2R2T mode
+*/
+void e320_radio_ctrl_impl::loopback_self_test(
+    std::function<void(uint32_t)> poker_functor, std::function<uint64_t()> peeker_functor)
+{
+    // Save current rate before running this test
+    const double current_rate = this->get_rate();
+    // Set 2R2T mode, stream on all channels
+    this->set_streaming_mode(true, true, true, true);
+    // Set maximum rate for 2R2T mode
+    this->set_rate(30.72e6);
+    // Put AD936x in loopback mode
+    _ad9361->data_port_loopback(true);
+    UHD_LOG_INFO(unique_id(), "Performing CODEC loopback test... ");
+    size_t hash                     = size_t(time(NULL));
+    constexpr size_t loopback_count = 100;
+
+    // Allow some time for AD936x to enter loopback mode.
+    // There is no clear statement in the documentation of how long it takes,
+    // but UG-570 does say to "allow six ADC_CLK/64 clock cycles of flush time"
+    // when leaving the TX or RX states.  That works out to ~75us at the
+    // minimum clock rate of 5 MHz, which lines up with test results.
+    // Sleeping 1ms is far more than enough.
+    std::this_thread::sleep_for(std::chrono::milliseconds(1));
+
+    for (size_t i = 0; i < loopback_count; i++) {
+        // Create test word
+        boost::hash_combine(hash, i);
+        const uint32_t word32 = uint32_t(hash) & 0xfff0fff0;
+        // const uint32_t word32 = 0xCA00C100;
+        // Write test word to codec_idle idle register (on TX side)
+        poker_functor(word32);
+
+        // Read back values - TX is lower 32-bits and RX is upper 32-bits
+        const uint64_t rb_word64 = peeker_functor();
+        const uint32_t rb_tx     = uint32_t(rb_word64 >> 32);
+        const uint32_t rb_rx     = uint32_t(rb_word64 & 0xffffffff);
+
+        // Compare TX and RX values to test word
+        bool test_fail = word32 != rb_tx or word32 != rb_rx;
+        if (test_fail) {
+            UHD_LOG_WARNING(unique_id(),
+                "CODEC loopback test failed! "
+                    << boost::format("Expected: 0x%08X Received (TX/RX): 0x%08X/0x%08X")
+                           % word32 % rb_tx % rb_rx);
+            throw uhd::runtime_error("CODEC loopback test failed.");
+        }
+    }
+    UHD_LOG_INFO(unique_id(), "CODEC loopback test passed");
+
+    // Zero out the idle data.
+    poker_functor(0);
+
+    // Take AD936x out of loopback mode
+    _ad9361->data_port_loopback(false);
+    this->set_streaming_mode(true, false, true, false);
+    // Switch back to current rate
+    this->set_rate(current_rate);
+}
+
+uint32_t e320_radio_ctrl_impl::get_tx_switches(const size_t chan, const double freq)
+{
+    UHD_LOG_TRACE(
+        unique_id(), "Update all TX freq related switches. f=" << freq << " Hz, ");
+    auto tx_sw1 = TX_SW1_LB_160;
+    auto tx_sw2 = TX_SW2_LB_160;
+    auto trx_sw = (chan == 0) ? TRX1_SW_TX_LB : TRX2_SW_TX_LB;
+    auto tx_amp = TX_AMP_LF_ON;
+
+    const auto band = e3xx_radio_ctrl_impl::map_freq_to_tx_band(freq);
+    switch (band) {
+        case tx_band::LB_80:
+            tx_sw1 = TX_SW1_LB_80;
+            tx_sw2 = TX_SW2_LB_80;
+            break;
+        case tx_band::LB_160:
+            tx_sw1 = TX_SW1_LB_160;
+            tx_sw2 = TX_SW2_LB_160;
+            break;
+        case tx_band::LB_225:
+            tx_sw1 = TX_SW1_LB_225;
+            tx_sw2 = TX_SW2_LB_225;
+            break;
+        case tx_band::LB_400:
+            tx_sw1 = TX_SW1_LB_400;
+            tx_sw2 = TX_SW2_LB_400;
+            break;
+        case tx_band::LB_575:
+            tx_sw1 = TX_SW1_LB_575;
+            tx_sw2 = TX_SW2_LB_575;
+            break;
+        case tx_band::LB_1000:
+            tx_sw1 = TX_SW1_LB_1000;
+            tx_sw2 = TX_SW2_LB_1000;
+            break;
+        case tx_band::LB_1700:
+            tx_sw1 = TX_SW1_LB_1700;
+            tx_sw2 = TX_SW2_LB_1700;
+            break;
+        case tx_band::LB_2750:
+            tx_sw1 = TX_SW1_LB_2750;
+            tx_sw2 = TX_SW2_LB_2750;
+            break;
+        case tx_band::HB:
+            trx_sw = (chan == 0) ? TRX1_SW_TX_HB : TRX2_SW_TX_HB;
+            tx_amp = TX_AMP_HF_ON;
+            break;
+        case tx_band::INVALID_BAND:
+            UHD_LOG_ERROR(unique_id(), "Cannot map TX frequency to band: " << freq);
+            UHD_THROW_INVALID_CODE_PATH();
+            break;
+    }
+
+    auto tx_regs = tx_amp << TX_AMP_SHIFT | trx_sw << TRX_SW_SHIFT
+                   | tx_sw2 << TX_SW2_SHIFT | tx_sw1 << TX_SW1_SHIFT;
+    return tx_regs;
+}
+
+uint32_t e320_radio_ctrl_impl::get_rx_switches(
+    const size_t chan, const double freq, const std::string& ant)
+{
+    UHD_LOG_TRACE(
+        unique_id(), "Update all RX freq related switches. f=" << freq << " Hz, ");
+    // Default to OFF
+    auto rx_sw1 = RX_SW1_OFF;
+    auto rx_sw2 = RX_SW2_OFF;
+    auto rx_sw3 = RX_SW3_OFF;
+    auto trx_sw = (chan == 0) ? TRX1_SW_RX : TRX2_SW_RX;
+    if (ant == "TX/RX") {
+        rx_sw3 = RX_SW3_HBRX_LBTRX;
+        trx_sw = (chan == 0) ? TRX1_SW_RX : TRX2_SW_RX;
+    } else if (ant == "RX2") {
+        rx_sw3 = RX_SW3_HBTRX_LBRX;
+        // Set TRX switch to TX when receiving on RX2
+        trx_sw = TRX1_SW_TX_HB;
+    }
+
+    const auto band = e3xx_radio_ctrl_impl::map_freq_to_rx_band(freq);
+    switch (band) {
+        case rx_band::LB_B2:
+            rx_sw1 = RX_SW1_LB_B2;
+            rx_sw2 = RX_SW2_LB_B2;
+            break;
+        case rx_band::LB_B3:
+            rx_sw1 = RX_SW1_LB_B3;
+            rx_sw2 = RX_SW2_LB_B3;
+            break;
+        case rx_band::LB_B4:
+            rx_sw1 = RX_SW1_LB_B4;
+            rx_sw2 = RX_SW2_LB_B4;
+            break;
+        case rx_band::LB_B5:
+            rx_sw1 = RX_SW1_LB_B5;
+            rx_sw2 = RX_SW2_LB_B5;
+            break;
+        case rx_band::LB_B6:
+            rx_sw1 = RX_SW1_LB_B6;
+            rx_sw2 = RX_SW2_LB_B6;
+            break;
+        case rx_band::LB_B7:
+            rx_sw1 = RX_SW1_LB_B7;
+            rx_sw2 = RX_SW2_LB_B7;
+            break;
+        case rx_band::HB:
+            rx_sw1 = RX_SW1_OFF;
+            rx_sw2 = RX_SW2_OFF;
+            if (ant == "TX/RX") {
+                rx_sw3 = RX_SW3_HBTRX_LBRX;
+            } else if (ant == "RX2") {
+                rx_sw3 = RX_SW3_HBRX_LBTRX;
+            }
+            break;
+        case rx_band::INVALID_BAND:
+            UHD_LOG_ERROR(unique_id(), "Cannot map RX frequency to band: " << freq);
+            UHD_THROW_INVALID_CODE_PATH();
+            break;
+    }
+
+    auto rx_regs = trx_sw << TRX_SW_SHIFT | rx_sw3 << RX_SW3_SHIFT
+                   | rx_sw2 << RX_SW2_SHIFT | rx_sw1 << RX_SW1_SHIFT;
+    return rx_regs;
+}
+
+uint32_t e320_radio_ctrl_impl::get_idle_switches()
+{
+    uint32_t idle_regs = TX_AMP_OFF << TX_AMP_SHIFT | TRX1_SW_TX_HB << TRX_SW_SHIFT
+                         | TX_SW2_LB_80 << TX_SW2_SHIFT | TX_SW1_LB_80 << TX_SW1_SHIFT
+                         | RX_SW3_OFF << RX_SW3_SHIFT | RX_SW2_OFF << RX_SW2_SHIFT
+                         | RX_SW1_OFF << RX_SW1_SHIFT;
+    return idle_regs;
+}
+
+uint32_t e320_radio_ctrl_impl::get_idle_led()
+{
+    return 0;
+}
+
+uint32_t e320_radio_ctrl_impl::get_rx_led()
+{
+    return 1 << TRX_LED_GRN_SHIFT;
+}
+
+uint32_t e320_radio_ctrl_impl::get_tx_led()
+{
+    return 1 << TX_LED_RED_SHIFT;
+}
+
+uint32_t e320_radio_ctrl_impl::get_txrx_led()
+{
+    return 1 << RX_LED_GRN_SHIFT;
+}
+UHD_RFNOC_BLOCK_REGISTER(e320_radio_ctrl, "NeonRadio");