1 files changed, 175 insertions, 0 deletions
diff --git a/host/lib/usrp_clock/usrp_clock_c.cpp b/host/lib/usrp_clock/usrp_clock_c.cpp
new file mode 100644
index 000000000..b55abc852
--- /dev/null
+++ b/host/lib/usrp_clock/usrp_clock_c.cpp
@@ -0,0 +1,175 @@
+/*
+ * 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/>.
+ */
+
+/* C-Interface for multi_usrp_clock */
+
+#include <uhd/utils/static.hpp>
+#include <uhd/usrp_clock/multi_usrp_clock.hpp>
+
+#include <uhd/usrp_clock/usrp_clock.h>
+
+#include <boost/foreach.hpp>
+#include <boost/thread/mutex.hpp>
+
+#include <string.h>
+#include <map>
+
+/****************************************************************************
+ * Registry / Pointer Management
+ ***************************************************************************/
+/* Public structs */
+struct uhd_usrp_clock {
+    size_t usrp_clock_index;
+    std::string last_error;
+};
+
+/* Not public: We use this for our internal registry */
+struct usrp_clock_ptr {
+    uhd::usrp_clock::multi_usrp_clock::sptr ptr;
+    static size_t usrp_clock_counter;
+};
+size_t usrp_clock_ptr::usrp_clock_counter = 0;
+typedef struct usrp_clock_ptr usrp_clock_ptr;
+/* Prefer map, because the list can be discontiguous */
+typedef std::map<size_t, usrp_clock_ptr> usrp_clock_ptrs;
+
+UHD_SINGLETON_FCN(usrp_clock_ptrs, get_usrp_clock_ptrs);
+/* Shortcut for accessing the underlying USRP clock sptr from a uhd_usrp_clock_handle* */
+#define USRP_CLOCK(h_ptr) (get_usrp_clock_ptrs()[h_ptr->usrp_clock_index].ptr)
+
+/****************************************************************************
+ * Generate / Destroy API calls
+ ***************************************************************************/
+static boost::mutex _usrp_clock_make_mutex;
+uhd_error uhd_usrp_clock_make(
+    uhd_usrp_clock_handle *h,
+    const char *args
+){
+    UHD_SAFE_C(
+        boost::mutex::scoped_lock lock(_usrp_clock_make_mutex);
+
+        size_t usrp_clock_count = usrp_clock_ptr::usrp_clock_counter;
+        usrp_clock_ptr::usrp_clock_counter++;
+
+        // Initialize USRP Clock
+        uhd::device_addr_t device_addr(args);
+        usrp_clock_ptr P;
+        P.ptr = uhd::usrp_clock::multi_usrp_clock::make(device_addr);
+
+        // Dump into registry
+        get_usrp_clock_ptrs()[usrp_clock_count] = P;
+
+        // Update handle
+        (*h) = new uhd_usrp_clock;
+        (*h)->usrp_clock_index = usrp_clock_count;
+    )
+}
+
+static boost::mutex _usrp_clock_free_mutex;
+uhd_error uhd_usrp_clock_free(
+    uhd_usrp_clock_handle *h
+){
+    UHD_SAFE_C(
+        boost::mutex::scoped_lock lock(_usrp_clock_free_mutex);
+
+        if(!get_usrp_clock_ptrs().count((*h)->usrp_clock_index)){
+            return UHD_ERROR_INVALID_DEVICE;
+        }
+
+        get_usrp_clock_ptrs().erase((*h)->usrp_clock_index);
+        delete *h;
+        *h = NULL;
+    )
+}
+
+uhd_error uhd_usrp_clock_last_error(
+    uhd_usrp_clock_handle h,
+    char* error_out,
+    size_t strbuffer_len
+){
+    UHD_SAFE_C(
+        memset(error_out, '\0', strbuffer_len);
+        strncpy(error_out, h->last_error.c_str(), strbuffer_len);
+    )
+}
+
+uhd_error uhd_usrp_clock_get_pp_string(
+    uhd_usrp_clock_handle h,
+    char* pp_string_out,
+    size_t strbuffer_len
+){
+    UHD_SAFE_C_SAVE_ERROR(h,
+        memset(pp_string_out, '\0', strbuffer_len);
+        strncpy(pp_string_out, USRP_CLOCK(h)->get_pp_string().c_str(), strbuffer_len);
+    )
+}
+
+uhd_error uhd_usrp_clock_get_num_boards(
+    uhd_usrp_clock_handle h,
+    size_t *num_boards_out
+){
+    UHD_SAFE_C_SAVE_ERROR(h,
+        *num_boards_out = USRP_CLOCK(h)->get_num_boards();
+    )
+}
+
+uhd_error uhd_usrp_clock_get_time(
+    uhd_usrp_clock_handle h,
+    size_t board,
+    uint32_t *clock_time_out
+){
+    UHD_SAFE_C_SAVE_ERROR(h,
+        *clock_time_out = USRP_CLOCK(h)->get_time(board);
+    )
+}
+
+uhd_error uhd_usrp_clock_get_sensor(
+    uhd_usrp_clock_handle h,
+    const char* name,
+    size_t board,
+    uhd_sensor_value_handle sensor_value_out
+){
+    UHD_SAFE_C_SAVE_ERROR(h,
+        delete sensor_value_out->sensor_value_cpp;
+        sensor_value_out->sensor_value_cpp = new uhd::sensor_value_t(USRP_CLOCK(h)->get_sensor(name, board));
+    )
+}
+
+uhd_error uhd_usrp_clock_get_sensor_names(
+    uhd_usrp_clock_handle h,
+    size_t board,
+    char* sensor_names_out,
+    size_t strbuffer_len,
+    size_t *num_sensors_out
+){
+    UHD_SAFE_C_SAVE_ERROR(h,
+        std::vector<std::string> sensor_names = USRP_CLOCK(h)->get_sensor_names(board);
+        *num_sensors_out = sensor_names.size();
+
+        std::string sensor_names_str = "";
+        BOOST_FOREACH(const std::string &sensor_name, sensor_names){
+            sensor_names_str += sensor_name;
+            sensor_names_str += ','; 
+        }
+        if(sensor_names.size() > 0){
+            sensor_names_str.resize(sensor_names_str.size()-1);
+        }
+
+        memset(sensor_names_out, '\0', strbuffer_len);
+        strncpy(sensor_names_out, sensor_names_str.c_str(), strbuffer_len);
+    )    
+}