Initial commit for N3xx development.

- Creates mpm/ subdirectory
- First pass at hardware daemon/MPM
- New code for LMK04828, AD9371
- spidev integration

Contributions by:

Martin Braun <martin.braun@ettus.com>
Derek Kozel <derek.kozel@ettus.com>
Mark Meserve <mark.meserve@ni.com>
Andrej Rode <andrej.rode@ettus.com>

3 files changed, 127 insertions, 0 deletions

diff --git a/host/lib/usrp/common/CMakeLists.txt b/host/lib/usrp/common/CMakeLists.txt
index 2f4fac5c6..c11dde123 100644
--- a/host/lib/usrp/common/CMakeLists.txt
+++ b/host/lib/usrp/common/CMakeLists.txt
@@ -32,4 +32,5 @@ LIBUHD_APPEND_SOURCES(
     ${CMAKE_CURRENT_SOURCE_DIR}/validate_subdev_spec.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/recv_packet_demuxer.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/fifo_ctrl_excelsior.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/lmk04828.cpp
 )
diff --git a/host/lib/usrp/common/lmk04828.cpp b/host/lib/usrp/common/lmk04828.cpp
new file mode 100644
index 000000000..fd681291f
--- /dev/null
+++ b/host/lib/usrp/common/lmk04828.cpp
@@ -0,0 +1,81 @@
+//
+// Copyright 2017 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 "lmk04828.hpp"
+#include "lmk04828_regs.hpp"
+#include "uhd/exception.hpp"
+
+using namespace uhd;
+
+static const uint32_t LMK04828_ID_DEVICE_TYPE = 6;
+static const uint32_t LMK04828_ID_PROD_LSB    = 91;
+static const uint32_t LMK04828_ID_PROD_MSB    = 208;
+static const uint32_t LMK04828_ID_MASKREV     = 32;
+
+class lmk04828_impl : public lmk04828_iface
+{
+public:
+    lmk04828_impl(write_fn_t write_fn, read_fn_t read_fn) : _write_fn(write_fn), _read_fn(read_fn)
+    {
+
+    }
+
+    ~lmk04828_impl()
+    {
+
+    }
+
+    void verify_chip_id()
+    {
+        // Check ID Device Type, ID Prod, and ID Maskrev registers
+        uint8_t id_device_type = _read_fn(3);
+
+        // assert(id_device_type == 6);
+        if (id_device_type != 6){
+            printf("id_device_type is not 6!");
+        }
+    }
+
+    uint8_t get_chip_id(){
+        uint8_t id_device_type = _read_fn(3);
+        return id_device_type;
+    }
+
+    void init()
+    {
+        // Configure the LMK to start producing clocks
+        throw new uhd::not_implemented_error("Not needed for MPM bringup");
+    }
+    
+    void send_sysref_pulse()
+    {
+        // Produce a single sysref pulse
+        throw new uhd::not_implemented_error("Not needed for MPM bringup");
+    }
+
+private:
+    
+    lmk04828_regs_t _regs;
+    
+    write_fn_t _write_fn;
+    read_fn_t _read_fn;
+};
+
+lmk04828_iface::sptr lmk04828_iface::make(write_fn_t write_fn, read_fn_t read_fn)
+{
+    return sptr(new lmk04828_impl(write_fn, read_fn));
+}
diff --git a/host/lib/usrp/common/lmk04828.hpp b/host/lib/usrp/common/lmk04828.hpp
new file mode 100644
index 000000000..ff063379c
--- /dev/null
+++ b/host/lib/usrp/common/lmk04828.hpp
@@ -0,0 +1,45 @@
+//
+// Copyright 2015 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/>.
+// 
+
+#ifndef INCLUDE_LMK04828_HPP
+#define INCLUDE_LMK04828_HPP
+
+#include <boost/function.hpp>
+#include <boost/shared_ptr.hpp>
+#include <vector>
+#include <stdint.h>
+
+class lmk04828_iface
+{
+public:
+    typedef boost::shared_ptr<lmk04828_iface> sptr;
+    typedef boost::function<void(std::vector<uint32_t>)> write_fn_t; 
+    typedef boost::function<uint8_t(uint32_t)> read_fn_t;
+
+    static sptr make(write_fn_t write_fn, read_fn_t read_fn);
+
+    virtual ~lmk04828_iface() {}
+
+    virtual void verify_chip_id() = 0;
+
+    virtual uint8_t get_chip_id() = 0;
+
+    virtual void init() = 0;
+
+    virtual void send_sysref_pulse() = 0;
+};
+#endif