nirio: Changes to kernel proxy to work with RIO 15.0 on linux

- Implemented IOCTL macro for linux and macosx
- Refactored v1 and v2 proxy code

4 files changed, 66 insertions, 672 deletions

diff --git a/host/include/uhd/transport/nirio/nirio_driver_iface.h b/host/include/uhd/transport/nirio/nirio_driver_iface.h
index 2668c10b9..6804f6171 100644
--- a/host/include/uhd/transport/nirio/nirio_driver_iface.h
+++ b/host/include/uhd/transport/nirio/nirio_driver_iface.h
@@ -34,51 +34,74 @@
     #endif
 #elif defined(UHD_PLATFORM_MACOS)
     #include <IOKit/IOKitLib.h>
+#elif defined(UHD_PLATFORM_LINUX)
+   #include <linux/ioctl.h>
 #endif
 
-// CTL_CODE macro for non-win OSes
-#ifndef UHD_PLATFORM_WIN32
-    #define CTL_CODE(a,controlCode,b,c) (controlCode)
+#if __GNUC__
+    typedef uint64_t  aligned_uint64_t __attribute__ ((aligned(8)));
+#else
+    typedef uint64_t  aligned_uint64_t;
 #endif
 
-namespace nirio_driver_iface {
+//IOCTL Definitions
+
+#if defined(UHD_PLATFORM_WIN32)
+
+    #define IOCTL_ACCESS_ANY       (FILE_ANY_ACCESS)
+    #define IOCTL_ACCESS_READ      (FILE_READ_ACCESS)
+    #define IOCTL_ACCESS_WRITE     (FILE_WRITE_ACCESS)
+    #define IOCTL_ACCESS_RW        (FILE_READ_ACCESS | FILE_WRITE_ACCESS)
 
-const uint32_t NIRIO_IOCTL_BASE = 0x800;
-
-const uint32_t NIRIO_IOCTL_SYNCOP =
-   CTL_CODE(FILE_DEVICE_UNKNOWN,
-            NIRIO_IOCTL_BASE + 4,
-            METHOD_OUT_DIRECT,
-            FILE_READ_DATA | FILE_WRITE_DATA);
-                                ///< The synchronous operation code. Note: We
-                                /// must use METHOD_OUT_DIRECT on the syncOp()
-                                /// IOCTL to ensure the contents of the output
-                                /// block are available in the kernel.
-
-const uint32_t NIRIO_IOCTL_GET_IFACE_NUM =
-   CTL_CODE(FILE_DEVICE_UNKNOWN,
-            NIRIO_IOCTL_BASE + 6,
-            METHOD_BUFFERED,
-            FILE_READ_DATA);    ///< Get the interface number for a device
-
-const uint32_t NIRIO_IOCTL_GET_SESSION =
-   CTL_CODE(FILE_DEVICE_UNKNOWN,
-            NIRIO_IOCTL_BASE + 8,
-            METHOD_BUFFERED,
-            FILE_READ_ACCESS);  ///< Gets a previously opened session to a device
-
-const uint32_t NIRIO_IOCTL_POST_OPEN =
-   CTL_CODE(FILE_DEVICE_UNKNOWN,
-            NIRIO_IOCTL_BASE + 9,
-            METHOD_BUFFERED,
-            FILE_READ_ACCESS);  ///< Called after opening a session
-
-const uint32_t NIRIO_IOCTL_PRE_CLOSE =
-   CTL_CODE(FILE_DEVICE_UNKNOWN,
-            NIRIO_IOCTL_BASE + 10,
-            METHOD_BUFFERED,
-            FILE_READ_ACCESS);  ///< Called before closing a session
+    #define IOCTL(type, function, access) \
+        CTL_CODE((0x8000+type), (0x800+function), METHOD_BUFFERED, access)
+
+#elif defined(UHD_PLATFORM_MACOS)
+
+    #define IOCTL_ACCESS_ANY       (0U)
+    #define IOCTL_ACCESS_READ      (1U)
+    #define IOCTL_ACCESS_WRITE     (2U)
+    #define IOCTL_ACCESS_RW        (3U)
+
+    #define IOCTL(type, function, access) \
+        (((access   & 0x0003) << 30) | \
+         ((type     & 0x00FF) << 16) | \
+         ((function & 0xFFFF) << 0))
+
+#elif defined(UHD_PLATFORM_LINUX)
+
+    #define IOCTL_ACCESS_ANY       (_IOC_NONE)
+    #define IOCTL_ACCESS_READ      (_IOC_READ)
+    #define IOCTL_ACCESS_WRITE     (_IOC_WRITE)
+    #define IOCTL_ACCESS_RW        (_IOC_READ | _IOC_WRITE)
+
+    struct nirio_ioctl_block_t {
+        aligned_uint64_t in_buf;
+        aligned_uint64_t out_buf;
+        uint32_t in_buf_len;
+        uint32_t out_buf_len;
+        uint32_t bytes_returned;
+        uint32_t padding;
+    };
 
+    #define IOCTL(type, function, access) \
+        _IOC(access, type, function, sizeof(nirio_ioctl_block_t))
+
+#else
+
+    #define IOCTL_ACCESS_ANY       (0U)
+    #define IOCTL_ACCESS_READ      (1U)
+    #define IOCTL_ACCESS_WRITE     (2U)
+    #define IOCTL_ACCESS_RW        (3U)
+
+    #define IOCTL(type, function, access) \
+        (((access   & 0x0003) << 30) | \
+         ((type     & 0x00FF) << 16) | \
+         ((function & 0xFFFF) << 0))
+
+#endif
+
+namespace nirio_driver_iface {
 
 //Device handle definition
 #if defined(UHD_PLATFORM_LINUX)
diff --git a/host/include/uhd/transport/nirio/niriok_proxy.h b/host/include/uhd/transport/nirio/niriok_proxy.h
index 07bcb59b6..bb112dd8a 100644
--- a/host/include/uhd/transport/nirio/niriok_proxy.h
+++ b/host/include/uhd/transport/nirio/niriok_proxy.h
@@ -145,29 +145,9 @@ namespace uhd { namespace niusrprio
 
     class UHD_API niriok_proxy : public boost::noncopyable {
     public:
-        struct nirio_ioctl_packet_t {
-             nirio_ioctl_packet_t(
-                 void* const _outBuf,
-                 const uint32_t _outSize,
-                 const int32_t _statusCode)
-             {
-                 outBuf._64BitField = 0;
-                 outBuf.pointer = _outBuf;
-                 outSize    = _outSize;
-                 statusCode = _statusCode;
-             };
-
-             union {
-                 void* pointer;
-                 uint64_t _64BitField;
-             } outBuf;
-
-             uint32_t outSize;
-             int32_t statusCode;
-         };
-      typedef boost::shared_ptr<niriok_proxy> sptr;
-
-      static sptr make_and_open(const std::string& interface_path);
+        typedef boost::shared_ptr<niriok_proxy> sptr;
+
+        static sptr make_and_open(const std::string& interface_path);
 
         niriok_proxy();
         virtual ~niriok_proxy();
@@ -180,9 +160,6 @@ namespace uhd { namespace niusrprio
 
         uint32_t get_interface_num() { return _interface_num; }
 
-        virtual nirio_status get_cached_session(
-            uint32_t& session) = 0;
-
         virtual nirio_status get_version(
             nirio_version_t type,
             uint32_t& major,
diff --git a/host/include/uhd/transport/nirio/niriok_proxy_impl_v1.h b/host/include/uhd/transport/nirio/niriok_proxy_impl_v1.h
index 173d43ed6..a10d1aaff 100644
--- a/host/include/uhd/transport/nirio/niriok_proxy_impl_v1.h
+++ b/host/include/uhd/transport/nirio/niriok_proxy_impl_v1.h
@@ -33,341 +33,8 @@ namespace uhd { namespace niusrprio
       are not compatible with NI-RIO 14.0 and later.
    */
 
-   class UHD_API niriok_proxy_impl_v1 : virtual public niriok_proxy {
+    class UHD_API niriok_proxy_impl_v1 : virtual public niriok_proxy {
     public:
-
-         // -------------------------------
-         // Function Codes: defined as integers rather than enums because they
-         // are going to be carried accross boundaries so size matters
-
-         struct NIRIO_FUNC
-         {
-            static const uint32_t GET32             = 0x00000001;
-            static const uint32_t SET32             = 0x00000002;
-            static const uint32_t SET_DRIVER_CONFIG = 0x00000007;
-            static const uint32_t FIFO              = 0x00000008;
-            static const uint32_t IO                = 0x0000000A;
-            static const uint32_t FIFO_STOP_ALL     = 0x0000000C;
-            static const uint32_t ADD_RESOURCE      = 0x0000000D;
-            static const uint32_t GET_STRING        = 0x0000000E;
-            static const uint32_t SET_STRING        = 0x0000000F;
-            static const uint32_t DOWNLOAD          = 0x00000013;
-            static const uint32_t RESET             = 0x00000014;
-         };
-
-         struct NIRIO_RESOURCE
-         {
-            static const uint32_t INPUT_FIFO    = 0xD0000001;
-            static const uint32_t OUTPUT_FIFO   = 0xD0000002;
-         };
-
-         struct NIRIO_FIFO
-         {
-            static const uint32_t CONFIGURE = 0x80000001;
-            static const uint32_t START     = 0x80000002;
-            static const uint32_t STOP      = 0x80000003;
-            static const uint32_t READ      = 0x80000004;
-            static const uint32_t WRITE     = 0x80000005;
-            static const uint32_t WAIT      = 0x80000006;
-            static const uint32_t GRANT     = 0x80000007;
-         };
-
-         struct NIRIO_IO
-         {
-            static const uint32_t POKE64             = 0xA0000005;
-            static const uint32_t POKE32             = 0xA0000006;
-            static const uint32_t POKE16             = 0xA0000007;
-            static const uint32_t POKE8              = 0xA0000008;
-            static const uint32_t PEEK64             = 0xA0000009;
-            static const uint32_t PEEK32             = 0xA000000A;
-            static const uint32_t PEEK16             = 0xA000000B;
-            static const uint32_t PEEK8              = 0xA000000C;
-            static const uint32_t READ_BLOCK         = 0xA000000D;
-            static const uint32_t WRITE_BLOCK        = 0xA000000E;
-            static const uint32_t GET_IO_WINDOW      = 0xA000000F;
-            static const uint32_t GET_IO_WINDOW_SIZE = 0xA0000010;
-         };
-
-         struct nirio_syncop_in_params_t
-         {
-            uint32_t function;
-            uint32_t subfunction;
-
-            union
-            {
-               struct
-               {
-                  uint32_t attribute;
-                  uint32_t value;
-               } attribute32;
-
-               struct
-               {
-                  uint32_t attribute;
-                  uint64_t value;
-               } attribute64;
-
-               struct
-               {
-                  uint32_t attribute;
-               } attributeStr;
-
-               struct
-               {
-                  uint32_t attribute;
-               } download;
-
-               union
-               {
-                  struct
-                  {
-                     uint32_t reserved_field_0_0_0;
-                  } reserved_field_0_0;
-                  struct
-                  {
-                     uint32_t reserved_field_0_1_0;
-                     uint32_t reserved_field_0_1_1;
-                  } reserved_field_0_1;
-                  struct
-                  {
-                     uint32_t reserved_field_0_2_0;
-                  } reserved_field_0_2;
-               } reserved_field_0;
-
-               union
-               {
-                  struct
-                  {
-                     uint32_t channel;
-                     uint32_t baseAddress;
-                     uint32_t depthInSamples;
-                     uint32_t version;
-                  } fifo;
-                  struct
-                  {
-                     uint32_t channel;
-                     uint32_t baseAddress;
-                     uint32_t depthInSamples;
-                     uint32_t version;
-                     uint32_t scalarType;
-                     uint32_t bitWidth;
-                  } fifoWithDataType;
-                  struct
-                  {
-                     uint64_t rangeBaseAddress;
-                     uint32_t rangeSizeInBytes;
-                     uint32_t rangeAttribute;
-                  } atomic; // obsolete
-               } add;
-
-               struct
-               {
-                  uint32_t channel;
-
-                  union
-                  {
-                     struct
-                     {
-                        uint32_t requestedDepth;
-                        uint8_t  requiresActuals;
-                     } config;
-                     struct
-                     {
-                        uint32_t timeout;
-                     } read;
-                     struct
-                     {
-                        uint32_t timeout;
-                        uint32_t scalarType;
-                        uint32_t bitWidth;
-                     } readWithDataType;
-                     struct
-                     {
-                        uint32_t timeout;
-                     } write;
-                     struct
-                     {
-                        uint32_t timeout;
-                        uint32_t scalarType;
-                        uint32_t bitWidth;
-                     } writeWithDataType;
-                     struct
-                     {
-                        uint32_t elementsRequested;
-                        uint32_t scalarType;
-                        uint32_t bitWidth;
-                        uint32_t timeout;
-                        uint8_t  output;
-                     } wait;
-                     struct
-                     {
-                        uint32_t elements;
-                     } grant;
-                  } op;
-               } fifo;
-
-               struct
-               {
-                  uint64_t reserved_field_1_0;
-                  uint32_t reserved_field_1_1;
-                  uint32_t reserved_field_1_2;
-               } reserved_field_1; // Obsolete
-
-               struct
-               {
-                  uint32_t offset;
-                  union
-                  {
-                     uint64_t value64;
-                     uint32_t value32;
-                     uint16_t value16;
-                     uint8_t  value8;
-                  } value;
-                  union
-                  {
-                     uint32_t   sizeToMap;
-                  } memoryMappedIoWindow;
-               } io;
-
-               struct
-               {
-                  uint32_t reserved_field_2_0;
-                  uint32_t reserved_field_2_1;
-               } reserved_field_2;
-
-               struct
-               {
-                  uint32_t reserved_field_3_0;
-               } reserved_field_3;
-
-               union
-               {
-                  struct
-                  {
-                     uint32_t reserved_field_4_0;
-                     int32_t  reserved_field_4_1;
-                  } wait;
-               } reserved_field_4;
-
-            } params;
-
-            uint32_t inbufByteLen;
-
-            union
-            {
-               const void* pointer;
-               uint64_t    _64BitField;
-            } inbuf;
-         };
-
-         static inline void init_syncop_in_params(nirio_syncop_in_params_t& param, const void* const buf, const uint32_t len)
-         {
-            param.inbuf._64BitField = 0;
-            param.inbuf.pointer = buf;
-            param.inbufByteLen = len;
-         }
-
-
-         struct nirio_syncop_out_params_t
-         {
-            union
-            {
-               struct
-               {
-                  uint32_t value;
-               } attribute32;
-
-               struct
-               {
-                  uint64_t value;
-               } attribute64;
-
-               union
-               {
-                  struct
-                  {
-                     uint32_t reserved_field_0_0;
-                  } enable;
-               } reserved_field_0;
-
-               struct
-               {
-                  union
-                  {
-                     struct
-                     {
-                        uint32_t actualDepth;
-                        uint32_t actualSize;
-                     } config;
-                     struct
-                     {
-                        uint32_t numberRead;
-                        uint32_t numberRemaining;
-                     } read;
-                     struct
-                     {
-                        uint32_t numberRemaining;
-                     } write;
-                     struct
-                     {
-                        union
-                        {
-                           void*    pointer;
-                           uint64_t _64BitField;
-                        } elements;
-                     } wait;
-                  } op;
-               } fifo;
-
-               struct
-               {
-                 union
-                  {
-                     union
-                     {
-                        uint64_t value64;
-                        uint32_t value32;
-                        uint16_t value16;
-                        uint8_t  value8;
-                     } value;
-                     union
-                     {
-                        void*    memoryMappedAddress;
-                        uint64_t _64BitField;
-                     } memoryMappedIoWindow;
-                     union
-                     {
-                        uint32_t   size;
-                     } memoryMappedIoWindowSize;
-                  };
-               } io;
-
-               uint32_t stringLength;
-
-               struct
-               {
-                  uint32_t reserved_field_1_0;
-               } reserved_field_1;
-
-            } params;
-
-            uint32_t    outbufByteLen;
-
-            union
-            {
-               void*    pointer;
-               uint64_t _64BitField;
-            } outbuf;
-         };
-
-
-         static inline void init_syncop_out_params(nirio_syncop_out_params_t& param, void* buf, uint32_t len)
-         {
-            param.outbuf._64BitField = 0;
-            param.outbuf.pointer = buf;
-            param.outbufByteLen = len;
-         }
-
         niriok_proxy_impl_v1();
         virtual ~niriok_proxy_impl_v1();
 
@@ -377,9 +44,6 @@ namespace uhd { namespace niusrprio
 
         virtual nirio_status reset();
 
-        virtual nirio_status get_cached_session(
-            uint32_t& session);
-
         virtual nirio_status get_version(
             nirio_version_t type,
             uint32_t& major,
@@ -477,7 +141,6 @@ namespace uhd { namespace niusrprio
                 size_t writeBufferLength,
                 void *readBuffer,
                 size_t readBufferLength);
-
     };
 
 }}
diff --git a/host/include/uhd/transport/nirio/niriok_proxy_impl_v2.h b/host/include/uhd/transport/nirio/niriok_proxy_impl_v2.h
index 333ab4348..c0183502a 100644
--- a/host/include/uhd/transport/nirio/niriok_proxy_impl_v2.h
+++ b/host/include/uhd/transport/nirio/niriok_proxy_impl_v2.h
@@ -24,12 +24,6 @@
 #include <uhd/transport/nirio/nirio_quirks.h>
 #include <uhd/transport/nirio/niriok_proxy.h>
 
-#if __GNUC__
-    typedef uint64_t  tAlignedU64 __attribute__ ((aligned(8)));
-#else
-    typedef uint64_t  tAlignedU64; 
-#endif
-
 namespace uhd { namespace niusrprio
 {
    /* 
@@ -39,267 +33,8 @@ namespace uhd { namespace niusrprio
       are not compatible with NI-RIO versions older than 14.0.
    */
 
-   #define IOCTL(type, function, access) \
-      CTL_CODE((0x8000+type), (0x800+function), METHOD_BUFFERED, access)
-
-   #define IOCTL_ACCESS_ANY       (FILE_ANY_ACCESS)
-   #define IOCTL_ACCESS_READ      (FILE_READ_ACCESS)
-   #define IOCTL_ACCESS_WRITE     (FILE_WRITE_ACCESS)
-   #define IOCTL_ACCESS_RW        (FILE_READ_ACCESS | FILE_WRITE_ACCESS)
-
-   #define IOCTL_TRANSPORT_GET32 IOCTL(0, 0, IOCTL_ACCESS_READ)
-   #define IOCTL_TRANSPORT_SET32 IOCTL(0, 1, IOCTL_ACCESS_WRITE)
-   #define IOCTL_TRANSPORT_GET_STRING IOCTL(0, 2, IOCTL_ACCESS_READ)
-   #define IOCTL_TRANSPORT_SET_STRING IOCTL(0, 3, IOCTL_ACCESS_WRITE)
-   #define IOCTL_TRANSPORT_RESET IOCTL(1, 1, IOCTL_ACCESS_WRITE)
-   #define IOCTL_TRANSPORT_ADD_INPUT_FIFO_RESOURCE IOCTL(2, 0, IOCTL_ACCESS_ANY)
-   #define IOCTL_TRANSPORT_ADD_OUTPUT_FIFO_RESOURCE IOCTL(2, 1, IOCTL_ACCESS_ANY)
-   #define IOCTL_TRANSPORT_SET_DEVICE_CONFIG IOCTL(2, 3, IOCTL_ACCESS_WRITE)
-   #define IOCTL_TRANSPORT_FIFO_CONFIG IOCTL(4, 0, IOCTL_ACCESS_ANY)
-   #define IOCTL_TRANSPORT_FIFO_START IOCTL(4, 1, IOCTL_ACCESS_ANY)
-   #define IOCTL_TRANSPORT_FIFO_STOP IOCTL(4, 2, IOCTL_ACCESS_ANY)
-   #define IOCTL_TRANSPORT_FIFO_READ IOCTL(4, 3, IOCTL_ACCESS_READ)
-   #define IOCTL_TRANSPORT_FIFO_WRITE IOCTL(4, 4, IOCTL_ACCESS_WRITE)
-   #define IOCTL_TRANSPORT_FIFO_WAIT IOCTL(4, 5, IOCTL_ACCESS_ANY)
-   #define IOCTL_TRANSPORT_FIFO_GRANT IOCTL(4, 6, IOCTL_ACCESS_ANY)
-   #define IOCTL_TRANSPORT_FIFO_STOP_ALL IOCTL(4, 7, IOCTL_ACCESS_ANY)
-   #define IOCTL_TRANSPORT_PEEK64 IOCTL(5, 2, IOCTL_ACCESS_READ)
-   #define IOCTL_TRANSPORT_PEEK32 IOCTL(5, 3, IOCTL_ACCESS_READ)
-   #define IOCTL_TRANSPORT_POKE64 IOCTL(5, 6, IOCTL_ACCESS_WRITE)
-   #define IOCTL_TRANSPORT_POKE32 IOCTL(5, 7, IOCTL_ACCESS_WRITE)
-   #define IOCTL_TRANSPORT_POST_OPEN IOCTL(8, 0, IOCTL_ACCESS_ANY)
-   #define IOCTL_TRANSPORT_PRE_CLOSE IOCTL(8, 1, IOCTL_ACCESS_ANY)
-
-   typedef struct {
-      nirio_scalar_type_t scalarType;
-      nirio_u32_t     bitWidth;
-      nirio_i32_t     integerWordLength;
-   } nirio_fifo_data_type_t;
-
    class UHD_API niriok_proxy_impl_v2 : virtual public niriok_proxy {
     public:
-		typedef struct in_transport_get32
-		{
-		   nirio_device_attribute32_t attribute;
-		   int32_t status;
-		} in_transport_get32_t;
-		typedef struct out_transport_get32
-		{
-		   uint32_t retVal__;
-		   int32_t status;
-		} out_transport_get32_t;
-		typedef struct in_transport_set32
-		{
-		   nirio_device_attribute32_t attribute;
-		   uint32_t value;
-		   int32_t status;
-		} in_transport_set32_t;
-		typedef struct out_transport_set32
-		{
-		   int32_t status;
-		} out_transport_set32_t;
-		typedef struct out_transport_get_string
-		{
-		   uint32_t  stringLen;
-		   int32_t status;
-		} out_transport_get_string_t;
-		typedef struct out_transport_set_string
-		{
-		   int32_t status;
-		} out_transport_set_string_t;
-		typedef struct in_transport_reset
-		{
-		   int32_t status;
-		} in_transport_reset_t;
-		typedef struct out_transport_reset
-		{
-		   int32_t status;
-		} out_transport_reset_t;
-		typedef struct in_transport_add_input_fifo_resource
-		{
-		   uint32_t channel;
-		   uint32_t baseAddress;
-		   uint32_t depthInSamples;
-		   nirio_fifo_data_type_t dataType;
-		   uint32_t version;
-		   int32_t status;
-		} in_transport_add_input_fifo_resource_t;
-		typedef struct out_transport_addInputFifo_resource
-		{
-		   int32_t status;
-		} out_transport_add_input_fifo_resource_t;
-		typedef struct in_transport_addOutputFifo_resource
-		{
-		   uint32_t channel;
-		   uint32_t baseAddress;
-		   uint32_t depthInSamples;
-		   nirio_fifo_data_type_t dataType;
-		   uint32_t version;
-		   int32_t status;
-		} in_transport_add_output_fifo_resource_t;
-		typedef struct out_transport_addOutputFifo_resource
-		{
-		   int32_t status;
-		} out_transport_add_output_fifo_resource_t;
-		typedef struct in_transport_setDevice_config
-		{
-		   uint32_t attribute;
-		   int32_t status;
-		} in_transport_set_device_config_t;
-		typedef struct out_transport_setDevice_config
-		{
-		   int32_t status;
-		} out_transport_set_device_config_t;
-		typedef struct in_transport_fifo_config
-		{
-		   uint32_t channel;
-		   tAlignedU64 requestedDepth;
-		   int32_t status;
-		} in_transport_fifo_config_t;
-		typedef struct out_transport_fifo_config
-		{
-		   tAlignedU64  actualDepth;
-		   tAlignedU64  actualSize;
-		   int32_t status;
-		} out_transport_fifo_config_t;
-		typedef struct in_transport_fifo_start
-		{
-		   uint32_t channel;
-		   int32_t status;
-		} in_transport_fifo_start_t;
-		typedef struct out_transport_fifo_start
-		{
-		   int32_t status;
-		} out_transport_fifo_start_t;
-		typedef struct in_transport_fifo_stop
-		{
-		   uint32_t channel;
-		   int32_t status;
-		} in_transport_fifo_stop_t;
-		typedef struct out_transport_fifo_stop
-		{
-		   int32_t status;
-		} out_transport_fifo_stop_t;
-		typedef struct in_transport_fifo_read
-		{
-		   uint32_t channel;
-		   tAlignedU64 buf;
-		   uint32_t numberElements;
-		   nirio_fifo_data_type_t dataType;
-		   uint32_t timeout;
-		   int32_t status;
-		} in_transport_fifo_read_t;
-		typedef struct out_transport_fifo_read
-		{
-		   uint32_t  read;
-		   uint32_t  remaining;
-		   int32_t status;
-		} out_transport_fifo_read_t;
-		typedef struct in_transport_fifo_write
-		{
-		   uint32_t channel;
-		   tAlignedU64 buf;
-		   uint32_t numberElements;
-		   nirio_fifo_data_type_t dataType;
-		   uint32_t timeout;
-		   int32_t status;
-		} in_transport_fifo_write_t;
-		typedef struct out_transport_fifo_write
-		{
-		   uint32_t  remaining;
-		   int32_t status;
-		} out_transport_fifo_write_t;
-		typedef struct in_transport_fifo_wait
-		{
-		   uint32_t channel;
-		   tAlignedU64 elementsRequested;
-		   nirio_fifo_data_type_t dataType;
-		   bool output;
-		   uint32_t timeout;
-		   int32_t status;
-		} in_transport_fifo_wait_t;
-		typedef struct out_transport_fifo_wait
-		{
-		   tAlignedU64  elements;
-		   tAlignedU64  elementsAcquired;
-		   tAlignedU64  elementsRemaining;
-		   int32_t status;
-		} out_transport_fifo_wait_t;
-		typedef struct in_transport_fifo_grant
-		{
-		   uint32_t channel;
-		   tAlignedU64 elements;
-		   int32_t status;
-		} in_transport_fifo_grant_t;
-		typedef struct out_transport_fifo_grant
-		{
-		   int32_t status;
-		} out_transport_fifo_grant_t;
-		typedef struct in_transport_fifoStop_all
-		{
-		   int32_t status;
-		} in_transport_fifo_stop_all_t;
-		typedef struct out_transport_fifoStop_all
-		{
-		   int32_t status;
-		} out_transport_fifo_stop_all_t;
-		typedef struct in_transport_peek64
-		{
-		   uint32_t offset;
-		   int32_t status;
-		} in_transport_peek64_t;
-		typedef struct out_transport_peek64
-		{
-		   tAlignedU64 retVal__;
-		   int32_t status;
-		} out_transport_peek64_t;
-		typedef struct in_transport_peek32
-		{
-		   uint32_t offset;
-		   int32_t status;
-		} in_transport_peek32_t;
-		typedef struct out_transport_peek32
-		{
-		   uint32_t retVal__;
-		   int32_t status;
-		} out_transport_peek32_t;
-		typedef struct in_transport_poke64
-		{
-		   uint32_t offset;
-		   tAlignedU64 value;
-		   int32_t status;
-		} in_transport_poke64_t;
-		typedef struct out_transport_poke64
-		{
-		   int32_t status;
-		} out_transport_poke64_t;
-		typedef struct in_transport_poke32
-		{
-		   uint32_t offset;
-		   uint32_t value;
-		   int32_t status;
-		} in_transport_poke32_t;
-		typedef struct out_transport_poke32
-		{
-		   int32_t status;
-		} out_transport_poke32_t;
-		typedef struct in_transport_post_open
-		{
-		   int32_t status;
-		} in_transport_post_open_t;
-		typedef struct out_transport_post_open
-		{
-		   int32_t status;
-		} out_transport_post_open_t;
-		typedef struct in_transport_pre_close
-		{
-		   int32_t status;
-		} in_transport_pre_close_t;
-		typedef struct out_transport_pre_close
-		{
-		   int32_t status;
-		} out_transport_pre_close_t;
-
         niriok_proxy_impl_v2();
         virtual ~niriok_proxy_impl_v2();
 
@@ -309,9 +44,6 @@ namespace uhd { namespace niusrprio
 
         virtual nirio_status reset();
 
-        virtual nirio_status get_cached_session(
-            uint32_t& session);
-
         virtual nirio_status get_version(
             nirio_version_t type,
             uint32_t& major,
@@ -402,7 +134,6 @@ namespace uhd { namespace niusrprio
         protected:
             // protected close function that doesn't acquire synchronization lock
             virtual void _close();
-
     };
 
 }}