Merge branch 'master' into mwest/b200_docs

1 files changed, 133 insertions, 0 deletions

diff --git a/host/lib/usrp/x300/x300_adc_ctrl.cpp b/host/lib/usrp/x300/x300_adc_ctrl.cpp
new file mode 100644
index 000000000..75bfb048c
--- /dev/null
+++ b/host/lib/usrp/x300/x300_adc_ctrl.cpp
@@ -0,0 +1,133 @@
+//
+// Copyright 2010-2013 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 "x300_adc_ctrl.hpp"
+#include "ads62p48_regs.hpp"
+#include <uhd/types/ranges.hpp>
+#include <uhd/utils/log.hpp>
+#include <uhd/utils/safe_call.hpp>
+#include <uhd/exception.hpp>
+#include <boost/foreach.hpp>
+
+using namespace uhd;
+
+/*!
+ * A X300 codec control specific to the ads62p48 ic.
+ */
+class x300_adc_ctrl_impl : public x300_adc_ctrl
+{
+public:
+    x300_adc_ctrl_impl(uhd::spi_iface::sptr iface, const size_t slaveno):
+        _iface(iface), _slaveno(slaveno)
+    {
+        //power-up adc
+       _ads62p48_regs.reset = 1;
+        this->send_ads62p48_reg(0x00); //issue a reset to the ADC
+       _ads62p48_regs.reset = 0;
+
+        _ads62p48_regs.enable_low_speed_mode = 0;
+        _ads62p48_regs.ref = ads62p48_regs_t::REF_INTERNAL;
+        _ads62p48_regs.standby = ads62p48_regs_t::STANDBY_NORMAL;
+        _ads62p48_regs.power_down = ads62p48_regs_t::POWER_DOWN_NORMAL;
+        _ads62p48_regs.lvds_cmos = ads62p48_regs_t::LVDS_CMOS_DDR_LVDS;
+        _ads62p48_regs.channel_control = ads62p48_regs_t::CHANNEL_CONTROL_INDEPENDENT;
+        _ads62p48_regs.data_format = ads62p48_regs_t::DATA_FORMAT_2S_COMPLIMENT;
+	_ads62p48_regs.clk_out_pos_edge = ads62p48_regs_t::CLK_OUT_POS_EDGE_MINUS7_26;
+	_ads62p48_regs.clk_out_neg_edge = ads62p48_regs_t::CLK_OUT_NEG_EDGE_MINUS7_26;
+
+
+        this->send_ads62p48_reg(0);
+        this->send_ads62p48_reg(0x20);
+        this->send_ads62p48_reg(0x3f);
+        this->send_ads62p48_reg(0x40);
+        this->send_ads62p48_reg(0x41);
+        this->send_ads62p48_reg(0x44);
+        this->send_ads62p48_reg(0x50);
+        this->send_ads62p48_reg(0x51);
+        this->send_ads62p48_reg(0x52);
+        this->send_ads62p48_reg(0x53);
+        this->send_ads62p48_reg(0x55);
+        this->send_ads62p48_reg(0x57);
+        this->send_ads62p48_reg(0x62);
+        this->send_ads62p48_reg(0x63);
+        this->send_ads62p48_reg(0x66);
+        this->send_ads62p48_reg(0x68);
+        this->send_ads62p48_reg(0x6a);
+        this->send_ads62p48_reg(0x75);
+        this->send_ads62p48_reg(0x76);
+
+    }
+
+    double set_gain(const double &gain)
+    {
+        const meta_range_t gain_range = meta_range_t(0, 6.0, 0.5);
+        const int gain_bits = int((gain_range.clip(gain)*2.0) + 0.5);
+        _ads62p48_regs.gain_chA = gain_bits;
+        _ads62p48_regs.gain_chB = gain_bits;
+        this->send_ads62p48_reg(0x55);
+        this->send_ads62p48_reg(0x68);
+        return gain_bits/2;
+    }
+
+    void set_test_word(const std::string &patterna, const std::string &patternb, const boost::uint32_t num)
+    {
+        _ads62p48_regs.custom_pattern_low = num & 0xff;
+        _ads62p48_regs.custom_pattern_high = num >> 8;
+        if (patterna == "ones") _ads62p48_regs.test_patterns_chA = ads62p48_regs_t::TEST_PATTERNS_CHA_ONES;
+        if (patterna == "zeros") _ads62p48_regs.test_patterns_chA = ads62p48_regs_t::TEST_PATTERNS_CHA_ZEROS;
+        if (patterna == "custom") _ads62p48_regs.test_patterns_chA = ads62p48_regs_t::TEST_PATTERNS_CHA_CUSTOM;
+        if (patterna == "ramp") _ads62p48_regs.test_patterns_chA = ads62p48_regs_t::TEST_PATTERNS_CHA_RAMP;
+        if (patterna == "normal") _ads62p48_regs.test_patterns_chA = ads62p48_regs_t::TEST_PATTERNS_CHA_NORMAL;
+        if (patternb == "ones") _ads62p48_regs.test_patterns_chB = ads62p48_regs_t::TEST_PATTERNS_CHB_ONES;
+        if (patternb == "zeros") _ads62p48_regs.test_patterns_chB = ads62p48_regs_t::TEST_PATTERNS_CHB_ZEROS;
+        if (patternb == "custom") _ads62p48_regs.test_patterns_chB = ads62p48_regs_t::TEST_PATTERNS_CHB_CUSTOM;
+        if (patterna == "ramp") _ads62p48_regs.test_patterns_chB = ads62p48_regs_t::TEST_PATTERNS_CHB_RAMP;
+        if (patterna == "normal") _ads62p48_regs.test_patterns_chB = ads62p48_regs_t::TEST_PATTERNS_CHB_NORMAL;
+        this->send_ads62p48_reg(0x51);
+        this->send_ads62p48_reg(0x52);
+        this->send_ads62p48_reg(0x62);
+        this->send_ads62p48_reg(0x75);
+    }
+
+    ~x300_adc_ctrl_impl(void)
+    {
+        _ads62p48_regs.power_down = ads62p48_regs_t::POWER_DOWN_GLOBAL;
+        UHD_SAFE_CALL
+        (
+            this->send_ads62p48_reg(0x40);
+        )
+    }
+
+private:
+    ads62p48_regs_t _ads62p48_regs;
+    uhd::spi_iface::sptr _iface;
+    const size_t _slaveno;
+
+    void send_ads62p48_reg(boost::uint8_t addr)
+    {
+        boost::uint16_t reg = _ads62p48_regs.get_write_reg(addr);
+        _iface->write_spi(_slaveno, spi_config_t::EDGE_FALL, reg, 16);
+    }
+};
+
+/***********************************************************************
+ * Public make function for the ADC control
+ **********************************************************************/
+x300_adc_ctrl::sptr x300_adc_ctrl::make(uhd::spi_iface::sptr iface, const size_t slaveno)
+{
+    return sptr(new x300_adc_ctrl_impl(iface, slaveno));
+}