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[Commit-gnuradio] r6128 - in gnuradio/branches/developers/gnychis/inband


From: gnychis
Subject: [Commit-gnuradio] r6128 - in gnuradio/branches/developers/gnychis/inband/usrp/host: apps lib/inband
Date: Wed, 8 Aug 2007 14:06:14 -0600 (MDT)

Author: gnychis
Date: 2007-08-08 14:06:14 -0600 (Wed, 08 Aug 2007)
New Revision: 6128

Modified:
   gnuradio/branches/developers/gnychis/inband/usrp/host/apps/Makefile.am
   
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_ping.cc
   
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_registers.cc
   
gnuradio/branches/developers/gnychis/inband/usrp/host/lib/inband/usrp_server.cc
Log:
Adding in a read registers test program where we write to a register and try to
read the register value back.  Still a work in progress.


Modified: gnuradio/branches/developers/gnychis/inband/usrp/host/apps/Makefile.am
===================================================================
--- gnuradio/branches/developers/gnychis/inband/usrp/host/apps/Makefile.am      
2007-08-08 19:13:52 UTC (rev 6127)
+++ gnuradio/branches/developers/gnychis/inband/usrp/host/apps/Makefile.am      
2007-08-08 20:06:14 UTC (rev 6128)
@@ -34,6 +34,7 @@
        check_order_quickly             \
        test_usrp_inband_cs             \
        test_usrp_inband_ping           \
+       test_usrp_inband_registers      \
        test_usrp_inband_rx             \
        test_usrp_inband_tx             \
        test_usrp_inband_timestamps     \
@@ -77,6 +78,9 @@
 test_usrp_inband_timestamps_SOURCES    = test_usrp_inband_timestamps.cc 
time_stuff.c ui_sincos.c
 test_usrp_inband_timestamps_LDADD      = $(USRP_LA)
 
+test_usrp_inband_registers_SOURCES     = test_usrp_inband_registers.cc 
time_stuff.c ui_sincos.c
+test_usrp_inband_registers_LDADD       = $(USRP_LA)
+
 test_usrp_inband_rx_SOURCES    = test_usrp_inband_rx.cc time_stuff.c 
ui_sincos.c
 test_usrp_inband_rx_LDADD      = $(USRP_LA)
 

Modified: 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_ping.cc
===================================================================
--- 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_ping.cc
 2007-08-08 19:13:52 UTC (rev 6127)
+++ 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_ping.cc
 2007-08-08 20:06:14 UTC (rev 6128)
@@ -366,8 +366,8 @@
   d_tx->send(s_cmd_to_control_channel,    // USRP server signal
              pmt_list2(PMT_NIL,           // invocation handle 
                        pmt_list1(pmt_list3(s_op_ping_fixed, 
-                                           PMT_NIL, 
-                                           PMT_NIL))));
+                                           pmt_from_long(0), 
+                                           pmt_from_long(0)))));
 
   if(verbose)
     std::cout << "[TEST_USRP_INBAND_PING] Ping!!" << std::endl;

Modified: 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_registers.cc
===================================================================
--- 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_registers.cc
    2007-08-08 19:13:52 UTC (rev 6127)
+++ 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_registers.cc
    2007-08-08 20:06:14 UTC (rev 6128)
@@ -34,108 +34,90 @@
 #include <mb_msg_accepter.h>
 #include <mb_class_registry.h>
 #include <pmt.h>
-#include <ui_nco.h>
 #include <stdio.h>
 #include <string.h>
 #include <sys/time.h>
 #include <iostream>
 
+// Include the symbols needed for communication with USRP server
 #include <symbols_usrp_server_cs.h>
 #include <symbols_usrp_channel.h>
 #include <symbols_usrp_low_level_cs.h>
 #include <symbols_usrp_tx.h>
 #include <symbols_usrp_rx.h>
 
-#define NBPING  10
-
 static bool verbose = true;
-bool bskip = false;
-long bstep = 10000;
-long bcurr = 0;
-long incr = 0x500;
-long ptime = 0x000;
 
-class test_usrp_inband_timestamps : public mb_mblock
+class test_usrp_inband_registers : public mb_mblock
 {
-  mb_port_sptr         d_tx;
-  mb_port_sptr         d_rx;
-  mb_port_sptr         d_cs;
-  pmt_t                d_tx_chan;      // returned tx channel handle
-  pmt_t                d_rx_chan;      // returned tx channel handle
 
-  struct timeval times[NBPING];
+  mb_port_sptr  d_tx;   // Ports connected to the USRP server
+  mb_port_sptr  d_rx;
+  mb_port_sptr  d_cs;
 
+  pmt_t   d_tx_chan;    // Returned channel from TX allocation
+  pmt_t   d_rx_chan;    // Returned channel from RX allocation
+
+  pmt_t   d_which_usrp; // The USRP to use for the test
+
+  long    d_warm_msgs;  // The number of messages to 'warm' the USRP
+  long    d_warm_recvd; // The number of msgs received in the 'warm' state
+
+  // Keep track of current state
   enum state_t {
     INIT,
     OPENING_USRP,
-    ALLOCATING_CHANNEL,
-    TRANSMITTING,
-    CLOSING_CHANNEL,
+    ALLOCATING_CHANNELS,
+    WRITE_REGISTER,
+    READ_REGISTER,
+    CLOSING_CHANNELS,
     CLOSING_USRP,
   };
+  state_t d_state;
 
-  state_t      d_state;
-  long         d_nsamples_to_send;
-  long         d_nsamples_xmitted;
-  long         d_nframes_xmitted;
-  long         d_samples_per_frame;
-  bool         d_done_sending;
-
-  // for generating sine wave output
-  ui_nco<float,float>  d_nco;
-  double               d_amplitude;
-
  public:
-  test_usrp_inband_timestamps(mb_runtime *runtime, const std::string 
&instance_name, pmt_t user_arg);
-  ~test_usrp_inband_timestamps();
+  test_usrp_inband_registers(mb_runtime *runtime, const std::string 
&instance_name, pmt_t user_arg);
+  ~test_usrp_inband_registers();
   void initial_transition();
   void handle_message(mb_message_sptr msg);
 
  protected:
-  void open_usrp();
-  void close_usrp();
-  void allocate_channel();
-  void send_packets();
-  void enter_receiving();
-  void enter_transmitting();
-  void build_and_send_ping();
-  void build_and_send_next_frame();
-  void handle_xmit_response(pmt_t invocation_handle);
-  void enter_closing_channel();
+  void opening_usrp();
+  void allocating_channels();
+  void write_register();
+  void read_register();
+  void closing_channels();
+  void closing_usrp();
 };
 
-test_usrp_inband_timestamps::test_usrp_inband_timestamps(mb_runtime *runtime, 
const std::string &instance_name, pmt_t user_arg)
-  : mb_mblock(runtime, instance_name, user_arg),
-    d_tx_chan(PMT_NIL),
-    d_rx_chan(PMT_NIL),
-    d_state(INIT), d_nsamples_to_send((long) 40e6),
-    d_nsamples_xmitted(0),
-    d_nframes_xmitted(0),
-    //d_samples_per_frame((long)(126)),
-    d_samples_per_frame((long)(126 * 2)),      // non-full packet
-    //d_samples_per_frame((long)(126 * 3.5)),  // non-full packet
-    //d_samples_per_frame((long)(126 * 4)),    // full packet
-    d_done_sending(false),
-    d_amplitude(16384)
-{ 
-  if(verbose)
-    std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Initializing...\n";
-  
-  d_tx = define_port("tx0", "usrp-tx", false, mb_port::INTERNAL);
-  d_rx = define_port("rx0", "usrp-rx", false, mb_port::INTERNAL);
-  d_cs = define_port("cs", "usrp-server-cs", false, mb_port::INTERNAL);
-  
-  bool fake_usrp_p = false;
 
-  // Test the TX side
+int
+main (int argc, char **argv)
+{
+  // handle any command line args here
 
+  mb_runtime_sptr rt = mb_make_runtime();
+  pmt_t result = PMT_NIL;
+
+  rt->run("top", "test_usrp_inband_registers", PMT_F, &result);
+}
+
+
+test_usrp_inband_registers::test_usrp_inband_registers(mb_runtime *runtime, 
const std::string &instance_name, pmt_t user_arg)
+  : mb_mblock(runtime, instance_name, user_arg),
+  d_tx_chan(PMT_NIL),
+  d_rx_chan(PMT_NIL),
+  d_which_usrp(pmt_from_long(0)),
+  d_state(INIT)
+{
+  
+  // A dictionary is used to pass parameters to the USRP
   pmt_t usrp_dict = pmt_make_dict();
 
-  if(fake_usrp_p) {
-    pmt_dict_set(usrp_dict, 
-                 pmt_intern("fake-usrp"),
-                            PMT_T);
-  }
+  // Specify the RBF to use
+  pmt_dict_set(usrp_dict,
+               pmt_intern("rbf"),
+               pmt_intern("tmac7.rbf"));
 
   // Set TX and RX interpolations
   pmt_dict_set(usrp_dict,
@@ -145,364 +127,308 @@
   pmt_dict_set(usrp_dict,
                pmt_intern("interp-rx"),
                pmt_from_long(16));
+  
+  d_tx = define_port("tx0", "usrp-tx", false, mb_port::INTERNAL);
+  d_rx = define_port("rx0", "usrp-rx", false, mb_port::INTERNAL);
+  d_cs = define_port("cs", "usrp-server-cs", false, mb_port::INTERNAL);
 
-  // Specify the RBF to use
-  pmt_dict_set(usrp_dict,
-               pmt_intern("rbf"),
-               pmt_intern("tmac5.rbf"));
-
+  // Create an instance of USRP server and connect ports
   define_component("server", "usrp_server", usrp_dict);
-
   connect("self", "tx0", "server", "tx0");
   connect("self", "rx0", "server", "rx0");
   connect("self", "cs", "server", "cs");
 
-  // initialize NCO
-  double freq = 100e3;
-  int interp = 32;                         // 32 -> 4MS/s
-  double sample_rate = 128e6 / interp; 
-  d_nco.set_freq(2*M_PI * freq/sample_rate);
-
 }
 
-test_usrp_inband_timestamps::~test_usrp_inband_timestamps()
+test_usrp_inband_registers::~test_usrp_inband_registers()
 {
 }
 
 void
-test_usrp_inband_timestamps::initial_transition()
+test_usrp_inband_registers::initial_transition()
 {
-  open_usrp();
+  opening_usrp();
 }
 
+// Handle message reads all incoming messages from USRP server which will be
+// initialization and ping responses.  We perform actions based on the current
+// state and the event (ie, ping response)
 void
-test_usrp_inband_timestamps::handle_message(mb_message_sptr msg)
+test_usrp_inband_registers::handle_message(mb_message_sptr msg)
 {
-  pmt_t        event = msg->signal();
+  pmt_t event = msg->signal();
   pmt_t data = msg->data();
   pmt_t port_id = msg->port_id();
 
   pmt_t handle = PMT_F;
   pmt_t status = PMT_F;
   std::string error_msg;
-  
-  //std::cout << msg << std::endl;
 
-  switch(d_state){
-  case OPENING_USRP:
-    if (pmt_eq(event, s_response_open)){
-      status = pmt_nth(1, data);
-      if (pmt_eq(status, PMT_T)){
-        allocate_channel();
-        return;
+  // Dispatch based on state
+  switch(d_state) {
+
+    //----------------------------- OPENING_USRP ----------------------------//
+    // We only expect a response from opening the USRP which should be 
succesful
+    // or failed.
+    case OPENING_USRP:
+      
+      if(pmt_eq(event, s_response_open)) {
+
+        status = pmt_nth(1, data);          // failed/succes
+        
+        if(pmt_eq(status, PMT_T)) {
+          allocating_channels();
+          return;
+        }
+        else {
+          error_msg = "failed to open usrp:";
+          goto bail;
+        }
+
       }
-      else {
-        error_msg = "failed to open usrp:";
-        goto bail;
-      }
-    }
-    goto unhandled;
+
+      goto unhandled;   // all other messages not handled in this state
+      
     
-  case ALLOCATING_CHANNEL:
-    if (pmt_eq(event, s_response_allocate_channel)){
+    //----------------------- ALLOCATING CHANNELS --------------------//
+    // When allocating channels, we need to wait for 2 responses from
+    // USRP server: one for TX and one for RX.  Both are initialized to
+    // NIL so we know to continue to the next state once both are set.
+    case ALLOCATING_CHANNELS:
 
-      if(pmt_eq(d_tx->port_symbol(), port_id)) {
+      // A TX allocation response
+      if(pmt_eq(event, s_response_allocate_channel)
+          && pmt_eq(d_tx->port_symbol(), port_id)) 
+      {
         status = pmt_nth(1, data);
-        d_tx_chan = pmt_nth(2, data);
+        
+        // If successful response, extract the channel
+        if(pmt_eq(status, PMT_T)) {
+          
+          d_tx_chan = pmt_nth(2, data);
 
-        if (pmt_eq(status, PMT_T)){
-
           if(verbose)
-            std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Received allocation 
for TX\n";
+            std::cout << "[TEST_USRP_INBAND_PING] Received TX allocation"
+                      << " on channel " << d_tx_chan << std::endl;
 
-          if(!pmt_eqv(d_rx_chan, PMT_NIL)) {
-            enter_receiving();
-            enter_transmitting();
-          }
+          // If the RX has also been allocated already, we can continue
+          if(!pmt_eqv(d_rx_chan, PMT_NIL)) 
+            write_register();
+
           return;
         }
-        else {
-          error_msg = "failed to allocate channel:";
+        else {  // TX allocation failed
+          error_msg = "failed to allocate TX channel:";
           goto bail;
         }
       }
       
-      if(pmt_eq(d_rx->port_symbol(), port_id)) {
+      // A RX allocation response
+      if(pmt_eq(event, s_response_allocate_channel)
+          && pmt_eq(d_rx->port_symbol(), port_id)) 
+      {
         status = pmt_nth(1, data);
-        d_rx_chan = pmt_nth(2, data);
+        
+        // If successful response, extract the channel
+        if(pmt_eq(status, PMT_T)) {
+          
+          d_rx_chan = pmt_nth(2, data);
 
-        if (pmt_eq(status, PMT_T)){
-
           if(verbose)
-            std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Received allocation 
for TX\n";
-          
-          if(!pmt_eqv(d_tx_chan, PMT_NIL)) {
-            enter_receiving();
-            enter_transmitting();
-          }
+            std::cout << "[TEST_USRP_INBAND_PING] Received RX allocation"
+                      << " on channel " << d_rx_chan << std::endl;
+
+          // If the TX has also been allocated already, we can continue
+          if(!pmt_eqv(d_tx_chan, PMT_NIL)) 
+            write_register();
+
           return;
         }
-        else {
-          error_msg = "failed to allocate channel:";
+        else {  // RX allocation failed
+          error_msg = "failed to allocate RX channel:";
           goto bail;
         }
       }
-    }
-    goto unhandled;
 
-  case TRANSMITTING:
-    if (pmt_eq(event, s_response_xmit_raw_frame)){
-      handle = pmt_nth(0, data);
-      status = pmt_nth(1, data);
+      goto unhandled;
 
-      if (pmt_eq(status, PMT_T)){
-        handle_xmit_response(handle);
-        return;
-      }
-      else {
-        error_msg = "bad response-xmit-raw-frame:";
-        goto bail;
-      }
-    }
+    //-------------------------- WRITE REGISTER ----------------------------//
+    // In the write register state, we do not expect to receive any messages
+    // since the write does not directly generate a response until the USRP
+    // responds.
+    case WRITE_REGISTER:
+      goto unhandled;
 
-    if (pmt_eq(event, s_response_from_control_channel)) {
-      std::cout << "ping response!\n";
-    }
-    goto unhandled;
+    //-------------------------- READ REGISTER ----------------------------//
+    // In the read register state, we only expect a read register response back
+    // that has the value we expect to have in it.  We read the response, 
ensure
+    // that the read was successful and display the register value.
+    case READ_REGISTER:
 
-  case CLOSING_CHANNEL:
-    if (pmt_eq(event, s_response_deallocate_channel)){
-      status = pmt_nth(1, data);
+      if(pmt_eq(event, s_response_from_control_channel)
+          && pmt_eq(d_tx->port_symbol(), port_id))
+      {
+        status = pmt_nth(1, data);
 
-      if (pmt_eq(status, PMT_T)){
-        close_usrp();
-        return;
-      }
-      else {
-        error_msg = "failed to deallocate channel:";
-        goto bail;
-      }
-    }
-    goto unhandled;
+        // If the read was successful, we extract the subpacket information
+        if(pmt_eq(status, PMT_T)) {
+          
+          pmt_t subp = pmt_nth(2, data);      // subpacket should be the read 
reg reply
 
-  case CLOSING_USRP:
-    if (pmt_eq(event, s_response_close)){
-      status = pmt_nth(1, data);
+          pmt_t subp_sig  = pmt_nth(0, subp);
+          pmt_t subp_data = pmt_nth(1, subp);
 
-      if (pmt_eq(status, PMT_T)){
-        shutdown_all(PMT_T);
-        return;
+          if(!pmt_eqv(subp_sig, s_op_read_reg_reply)) {
+            error_msg = "received improper subpacket when expecting reg 
reply.";
+            goto bail;
+          }
+
+          pmt_t rid     = pmt_nth(0, subp_data);
+          pmt_t reg_num = pmt_nth(1, subp_data);
+          pmt_t reg_val = pmt_nth(2, subp_data);
+
+          if(verbose)
+            std::cout << "[TEST_USRP_INBAND_REGISTERS] Received read reg reply 
"
+                      << "("
+                      << "RID: " << rid
+                      << "Reg: " << reg_num
+                      << "Val: " << reg_val
+                      << ")\n";
+          
+          // read_register();  FIX ME STATE TRANSITION
+          return;
+
+        } else {  // bail on unsuccessful write
+          error_msg = "failed to write to register.";
+          goto bail;
+        }
       }
-      else {
-        error_msg = "failed to close USRP:";
-        goto bail;
-      }
-    }
-    goto unhandled;
+      goto unhandled;
 
-  default:
-    goto unhandled;
-  }
-  return;
+    case CLOSING_CHANNELS:
+      goto unhandled;
 
+    case CLOSING_USRP:
+      goto unhandled;
+
+    case INIT:
+      goto unhandled;
+
+  }
+ 
+ // An error occured, print it, and shutdown all m-blocks
  bail:
   std::cerr << error_msg << data
-           << "status = " << status << std::endl;
+           << "status = " << status << std::endl;
   shutdown_all(PMT_F);
   return;
 
+ // Received an unhandled message for a specific state
  unhandled:
-  if(verbose && 0)
+  if(verbose)
     std::cout << "test_usrp_inband_tx: unhandled msg: " << msg
               << "in state "<< d_state << std::endl;
+
 }
 
 
+// Sends a command to USRP server to open up a connection to the
+// specified USRP, which is defaulted to USRP 0 on the system
 void
-test_usrp_inband_timestamps::open_usrp()
+test_usrp_inband_registers::opening_usrp()
 {
-  pmt_t which_usrp = pmt_from_long(0);
 
-  d_cs->send(s_cmd_open, pmt_list2(PMT_NIL, which_usrp));
+  if(verbose)
+    std::cout << "[TEST_USRP_INBAND_PING] Opening USRP " 
+              << d_which_usrp << std::endl;
+
+  d_cs->send(s_cmd_open, pmt_list2(PMT_NIL, d_which_usrp));
   d_state = OPENING_USRP;
 }
 
+// RX and TX channels must be allocated so that the USRP server can
+// properly share bandwidth across multiple USRPs.  No commands will be
+// successful to the USRP through the USRP server on the TX or RX channels 
until
+// a bandwidth allocation has been received.
 void
-test_usrp_inband_timestamps::close_usrp()
+test_usrp_inband_registers::allocating_channels()
 {
-  d_cs->send(s_cmd_close, pmt_list1(PMT_NIL));
-  d_state = CLOSING_USRP;
+  d_state = ALLOCATING_CHANNELS;
 
-  if(verbose)
-    std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Closing USRP\n";
-}
-
-void
-test_usrp_inband_timestamps::allocate_channel()
-{
   long capacity = (long) 16e6;
   d_tx->send(s_cmd_allocate_channel, pmt_list2(PMT_T, 
pmt_from_long(capacity)));
   d_rx->send(s_cmd_allocate_channel, pmt_list2(PMT_T, 
pmt_from_long(capacity)));
-  d_state = ALLOCATING_CHANNEL;
 }
 
+// After allocating the channels, a write register command will be sent to the
+// USRP.
 void
-test_usrp_inband_timestamps::enter_receiving()
+test_usrp_inband_registers::write_register()
 {
-  d_rx->send(s_cmd_start_recv_raw_samples,
-             pmt_list2(PMT_F,
-                       d_rx_chan));
-}
+  d_state = WRITE_REGISTER;
 
-void
-test_usrp_inband_timestamps::enter_transmitting()
-{
-  d_state = TRANSMITTING;
-  d_nsamples_xmitted = 0;
+  long reg = 13;
 
+  d_tx->send(s_cmd_to_control_channel,    // C/S packet
+             pmt_list2(PMT_NIL,           // invoc handle
+                       pmt_list1(
+                            pmt_list2(s_op_write_reg, 
+                                      pmt_list2(
+                                      pmt_from_long(reg), 
+                                      pmt_from_long(0xbeef))))));
+
   if(verbose)
-    std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Beginning transmission\n";
+    std::cout << "[TEST_USRP_INBAND_REGISTERS] Writing 0xbeef to " 
+              << reg << std::endl;
 
-  sleep(1);
-
-  build_and_send_next_frame();
-  build_and_send_next_frame();
-  build_and_send_next_frame();
-  build_and_send_next_frame();
-
-}
-
-void
-test_usrp_inband_timestamps::build_and_send_ping()
-{
+  read_register();  // immediately transition to read the register
   
   d_tx->send(s_cmd_to_control_channel,
-             pmt_list2(PMT_NIL, pmt_list1(pmt_list2(s_op_ping_fixed,
-                                                    pmt_list2(pmt_from_long(0),
-                                                              
pmt_from_long(0))))));
-  if(verbose && 0)
-    std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Ping sent" << std::endl;
+             pmt_list2(PMT_NIL,
+                       pmt_list1(
+                            pmt_list2(s_op_ping_fixed, 
+                                      pmt_list2(pmt_from_long(3), 
+                                      pmt_from_long(0))))));
+  d_tx->send(s_cmd_to_control_channel,
+             pmt_list2(PMT_NIL,
+                       pmt_list1(
+                            pmt_list2(s_op_ping_fixed, 
+                                      pmt_list2(pmt_from_long(3), 
+                                      pmt_from_long(0))))));
+  d_tx->send(s_cmd_to_control_channel,
+             pmt_list2(PMT_NIL,
+                       pmt_list1(
+                            pmt_list2(s_op_ping_fixed, 
+                                      pmt_list2(pmt_from_long(3), 
+                                      pmt_from_long(0))))));
+  d_tx->send(s_cmd_to_control_channel,
+             pmt_list2(PMT_NIL,
+                       pmt_list1(
+                            pmt_list2(s_op_ping_fixed, 
+                                      pmt_list2(pmt_from_long(3), 
+                                      pmt_from_long(0))))));
 }
 
+// After writing to the register, we want to read the value back and ensure 
that
+// it is the same value that we wrote.
 void
-test_usrp_inband_timestamps::build_and_send_next_frame()
+test_usrp_inband_registers::read_register()
 {
-  // allocate the uniform vector for the samples
-  // FIXME perhaps hold on to this between calls
+  d_state = READ_REGISTER;
 
-#if 0
-  long nsamples_this_frame =
-    std::min(d_nsamples_to_send - d_nsamples_xmitted,
-            d_samples_per_frame);
-#else
-  long nsamples_this_frame = d_samples_per_frame;
-#endif
+  long reg = 13;
 
-  if (nsamples_this_frame == 0){
-    d_done_sending = true;
-    return;
-  }
-    
+  d_tx->send(s_cmd_to_control_channel,    // C/S packet
+             pmt_list2(PMT_NIL,           // invoc handle
+                       pmt_list1(
+                            pmt_list2(s_op_read_reg, 
+                                      pmt_list2(
+                                      pmt_from_long(0),   // rid 
+                                      pmt_from_long(reg))))));
 
-  size_t nshorts = 2 * nsamples_this_frame;    // 16-bit I & Q
-  pmt_t uvec = pmt_make_s16vector(nshorts, 0);
-  size_t ignore;
-  int16_t *samples = pmt_s16vector_writeable_elements(uvec, ignore);
-
-  // fill in the complex sinusoid
-
-  for (int i = 0; i < nsamples_this_frame; i++){
-
-    if (1){
-      gr_complex s;
-      d_nco.sincos(&s, 1, d_amplitude);
-      // write 16-bit i & q
-      samples[2*i] =   (int16_t) s.real();
-      samples[2*i+1] = (int16_t) s.imag();
-    }
-    else {
-      gr_complex s(d_amplitude, d_amplitude);
-
-      // write 16-bit i & q
-      samples[2*i] =   (int16_t) s.real();
-      samples[2*i+1] = (int16_t) s.imag();
-    }
-  }
-
-  pmt_t timestamp;
-
-  if(bskip) {
-    timestamp = pmt_from_long(0x0);    // throw away  
-    bcurr++;
-    if(bcurr == bstep) {
-      bskip = false;
-      bcurr = 0;
-    }
-  } else {
-    timestamp = pmt_from_long(0xffffffff);     // NOW
-    timestamp = pmt_from_long(ptime);
-    ptime += incr;
-    bcurr++;
-    if(bcurr == bstep) {
-      //bskip = true;
-      bcurr = 0;
-    }
-  }
-
-  std::cout << bskip << " -- " << bcurr << std::endl;
-
-  d_tx->send(s_cmd_xmit_raw_frame,
-            pmt_list4(pmt_from_long(d_nframes_xmitted),  // invocation-handle
-                      d_tx_chan,                         // channel
-                      uvec,                              // the samples
-                      timestamp));
-
-  d_nsamples_xmitted += nsamples_this_frame;
-  d_nframes_xmitted++;
-
-  if(verbose && 0)
-    std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Transmitted frame\n";
-  
-  //build_and_send_next_frame();
-}
-
-
-void
-test_usrp_inband_timestamps::handle_xmit_response(pmt_t handle)
-{
-  if (d_done_sending &&
-      pmt_to_long(handle) == (d_nframes_xmitted - 1)){
-    // We're done sending and have received all responses
-    enter_closing_channel();
-  }
-
-  build_and_send_next_frame();
-  //build_and_send_ping();
-}
-
-void
-test_usrp_inband_timestamps::enter_closing_channel()
-{
-  d_state = CLOSING_CHANNEL;
-  
-  d_tx->send(s_cmd_deallocate_channel, pmt_list2(PMT_NIL, d_tx_chan));
-
   if(verbose)
-    std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Closing channel\n";
+    std::cout << "[TEST_USRP_INBAND_REGISTERS] Reading from register " 
+              << reg << std::endl;
 }
 
-REGISTER_MBLOCK_CLASS(test_usrp_inband_timestamps);
-
-
-// ----------------------------------------------------------------
-
-int
-main (int argc, char **argv)
-{
-  // handle any command line args here
-
-  mb_runtime_sptr rt = mb_make_runtime();
-  pmt_t result = PMT_NIL;
-
-  rt->run("top", "test_usrp_inband_timestamps", PMT_F, &result);
-}
+REGISTER_MBLOCK_CLASS(test_usrp_inband_registers);

Modified: 
gnuradio/branches/developers/gnychis/inband/usrp/host/lib/inband/usrp_server.cc
===================================================================
--- 
gnuradio/branches/developers/gnychis/inband/usrp/host/lib/inband/usrp_server.cc 
    2007-08-08 19:13:52 UTC (rev 6127)
+++ 
gnuradio/branches/developers/gnychis/inband/usrp/host/lib/inband/usrp_server.cc 
    2007-08-08 20:06:14 UTC (rev 6128)
@@ -38,7 +38,7 @@
 
 typedef usrp_inband_usb_packet transport_pkt;   // makes conversion to gigabit 
easy
 
-const static bool verbose = false;
+const static bool verbose = true;
 
 static std::string
 str(long x)
@@ -764,7 +764,11 @@
       }
       
       if(verbose)
-        std::cout << "[USRP_SERVER] Received write register request\n";
+        std::cout << "[USRP_SERVER] Received write register request "
+                  << "("
+                  << "Reg: " << reg_num << ", "
+                  << "Val: " << val
+                  << ")\n";
     }
     
     //------- WRITE REG MASKED ----------//





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