From c7274790a0b8a812d731320c2b7711efa2e1daa7 Mon Sep 17 00:00:00 2001
From: Ashish Chaudhari <ashish@ettus.com>
Date: Fri, 1 Aug 2014 13:14:56 -0700
Subject: b200: Moved AD9361 driver to host

- Switched to FPGA SPI engine
- Moved firmware AD9361 driver to UHD
- Bumped FW compat to 5, FPGA compat to 4
- Known Issue: AD9361 SPI rate is too slow
---
 host/lib/usrp/common/ad9361_platform_uhd.cpp | 86 ++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 host/lib/usrp/common/ad9361_platform_uhd.cpp

(limited to 'host/lib/usrp/common/ad9361_platform_uhd.cpp')

diff --git a/host/lib/usrp/common/ad9361_platform_uhd.cpp b/host/lib/usrp/common/ad9361_platform_uhd.cpp
new file mode 100644
index 000000000..10ea67345
--- /dev/null
+++ b/host/lib/usrp/common/ad9361_platform_uhd.cpp
@@ -0,0 +1,86 @@
+//
+// Copyright 2014 Ettus Research LLC
+//
+
+#include <uhd/utils/msg.hpp>
+#include <cmath>
+#include <cstdlib>
+#include <cstring>
+#include <stdint.h>
+#include <ad9361_platform.h>
+#include "ad9361_ctrl.hpp"
+#include <stdio.h>
+#include <boost/date_time/posix_time/posix_time.hpp>
+#include <boost/thread/thread.hpp>
+
+//If the platform for the AD9361 driver is UHD (host) then the handle is simply
+//a pointer to a device class instance
+ad9361_device_t* get_ad9361_device(uint64_t handle)
+{
+    return reinterpret_cast<ad9361_device_t*>(reinterpret_cast<void*>(handle));
+}
+
+uint8_t read_ad9361_reg(ad9361_device_t* device, uint32_t reg)
+{
+    if (device && device->io_iface) {
+        //If the platform for the AD9361 driver is UHD (host) then the io_iface is
+        //a pointer to a ad9361_io implementation
+        ad9361_io* io_iface = reinterpret_cast<ad9361_io*>(device->io_iface);
+        return io_iface->peek8(reg);
+    } else {
+        return 0;
+    }
+}
+
+void write_ad9361_reg(ad9361_device_t* device, uint32_t reg, uint8_t val)
+{
+    if (device && device->io_iface) {
+        //If the platform for the AD9361 driver is UHD (host) then the io_iface is
+        //a pointer to a ad9361_io implementation
+        ad9361_io* io_iface = reinterpret_cast<ad9361_io*>(device->io_iface);
+        io_iface->poke8(reg, val);
+    }
+}
+
+typedef union
+{
+    double d;
+    uint32_t x[2];
+} ad9361_double_union_t;
+
+void ad9361_double_pack(const double input, uint32_t output[2])
+{
+    ad9361_double_union_t p = {};
+    p.d = input;
+    output[0] = p.x[0];
+    output[1] = p.x[1];
+}
+
+double ad9361_double_unpack(const uint32_t input[2])
+{
+    ad9361_double_union_t p = {};
+    p.x[0] = input[0];
+    p.x[1] = input[1];
+    return p.d;
+}
+
+double ad9361_sqrt(double val)
+{
+    return std::sqrt(val);
+}
+
+void ad9361_msleep(const uint32_t millis)
+{
+    boost::this_thread::sleep(boost::posix_time::milliseconds(millis));
+}
+
+int ad9361_floor_to_int(double val)
+{
+    return static_cast<int>(std::floor(val));
+}
+
+int ad9361_ceil_to_int(double val)
+{
+    return static_cast<int>(std::ceil(val));
+}
+
-- 
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