[Commit-gnuradio] r6314 - gnuradio/branches/developers/gnychis/inband/usrp/host/apps

[gnychis]

Author: gnychis
Date: 2007-09-05 09:14:34 -0600 (Wed, 05 Sep 2007)
New Revision: 6314

Added:
   
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_underrun.cc
Modified:
   gnuradio/branches/developers/gnychis/inband/usrp/host/apps/Makefile.am
Log:
Work in progress on underrun test


Modified: gnuradio/branches/developers/gnychis/inband/usrp/host/apps/Makefile.am
===================================================================
--- gnuradio/branches/developers/gnychis/inband/usrp/host/apps/Makefile.am      
2007-09-05 14:19:27 UTC (rev 6313)
+++ gnuradio/branches/developers/gnychis/inband/usrp/host/apps/Makefile.am      
2007-09-05 15:14:34 UTC (rev 6314)
@@ -38,6 +38,7 @@
        test_usrp_inband_rx             \
        test_usrp_inband_tx             \
        test_usrp_inband_timestamps     \
+       test_usrp_inband_underrun               \
        test_usrp_standard_rx           \
        test_usrp_standard_tx           \
        read_packets
@@ -84,5 +85,8 @@
 test_usrp_inband_rx_SOURCES    = test_usrp_inband_rx.cc time_stuff.c 
ui_sincos.c
 test_usrp_inband_rx_LDADD      = $(USRP_LA)
 
+test_usrp_inband_underrun_SOURCES      = test_usrp_inband_underrun.cc
+test_usrp_inband_underrun_LDADD        = $(USRP_LA)
+
 read_packets_SOURCES = read_packets.cc
 read_packets_LDADD = $(USRP_LA)

Copied: 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_underrun.cc
 (from rev 6313, 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_registers.cc)
===================================================================
--- 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_underrun.cc
                             (rev 0)
+++ 
gnuradio/branches/developers/gnychis/inband/usrp/host/apps/test_usrp_inband_underrun.cc
     2007-09-05 15:14:34 UTC (rev 6314)
@@ -0,0 +1,436 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio 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, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <mb_mblock.h>
+#include <mb_runtime.h>
+#include <mb_runtime_nop.h>            // QA only
+#include <mb_protocol_class.h>
+#include <mb_exception.h>
+#include <mb_msg_queue.h>
+#include <mb_message.h>
+#include <mb_mblock_impl.h>
+#include <mb_msg_accepter.h>
+#include <mb_class_registry.h>
+#include <pmt.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>
+
+static bool verbose = true;
+
+class test_usrp_inband_underrun : public mb_mblock
+{
+
+  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_CHANNELS,
+    WRITE_REGISTER,
+    READ_REGISTER,
+    CLOSING_CHANNELS,
+    CLOSING_USRP,
+  };
+  state_t d_state;
+
+ public:
+  test_usrp_inband_underrun(mb_runtime *runtime, const std::string 
&instance_name, pmt_t user_arg);
+  ~test_usrp_inband_underrun();
+  void initial_transition();
+  void handle_message(mb_message_sptr msg);
+
+ protected:
+  void opening_usrp();
+  void allocating_channels();
+  void write_register();
+  void read_register();
+  void closing_channels();
+  void closing_usrp();
+  void enter_receiving();
+  void build_and_send_ping();
+};
+
+
+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_underrun", PMT_F, &result);
+}
+
+
+test_usrp_inband_underrun::test_usrp_inband_underrun(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();
+
+  // Specify the RBF to use
+  pmt_dict_set(usrp_dict,
+               pmt_intern("rbf"),
+               pmt_intern("boe2.rbf"));
+
+  // Set TX and RX interpolations
+  pmt_dict_set(usrp_dict,
+               pmt_intern("interp-tx"),
+               pmt_from_long(128));
+
+  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);
+
+  // 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");
+
+}
+
+test_usrp_inband_underrun::~test_usrp_inband_underrun()
+{
+}
+
+void
+test_usrp_inband_underrun::initial_transition()
+{
+  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_underrun::handle_message(mb_message_sptr msg)
+{
+  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;
+
+  // 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;
+        }
+
+      }
+
+      goto unhandled;   // all other messages not handled in this state
+      
+    
+    //----------------------- 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:
+
+      // 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);
+        
+        // If successful response, extract the channel
+        if(pmt_eq(status, PMT_T)) {
+          
+          d_tx_chan = pmt_nth(2, data);
+
+          if(verbose)
+            std::cout << "[TEST_USRP_INBAND_PING] Received TX allocation"
+                      << " on channel " << d_tx_chan << std::endl;
+
+          // If the RX has also been allocated already, we can continue
+          if(!pmt_eqv(d_rx_chan, PMT_NIL)) {
+            enter_receiving();
+            write_register();
+          }
+
+          return;
+        }
+        else {  // TX allocation failed
+          error_msg = "failed to allocate TX channel:";
+          goto bail;
+        }
+      }
+      
+      // 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);
+        
+        // If successful response, extract the channel
+        if(pmt_eq(status, PMT_T)) {
+          
+          d_rx_chan = pmt_nth(2, data);
+
+          if(verbose)
+            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)) {
+            enter_receiving();
+            write_register();
+          }
+
+          return;
+        }
+        else {  // RX allocation failed
+          error_msg = "failed to allocate RX channel:";
+          goto bail;
+        }
+      }
+
+      goto unhandled;
+
+    //-------------------------- 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;
+
+    //-------------------------- 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:
+
+      if(pmt_eq(event, s_response_from_control_channel)
+          && pmt_eq(d_tx->port_symbol(), port_id))
+      {
+        status = pmt_nth(1, data);
+
+        // 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
+
+          pmt_t subp_sig  = pmt_nth(0, subp);
+          pmt_t subp_data = pmt_nth(1, subp);
+
+          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;
+        }
+      }
+      goto unhandled;
+
+    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;
+  shutdown_all(PMT_F);
+  return;
+
+ // Received an unhandled message for a specific state
+ unhandled:
+  if(verbose && !pmt_eq(event, s_response_recv_raw_samples))
+    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_underrun::opening_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_underrun::allocating_channels()
+{
+  d_state = ALLOCATING_CHANNELS;
+
+  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)));
+}
+
+// After allocating the channels, a write register command will be sent to the
+// USRP.
+void
+test_usrp_inband_underrun::write_register()
+{
+  d_state = WRITE_REGISTER;
+
+  long reg = 0;
+
+  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_REGISTERS] Writing 0xbeef to " 
+              << reg << std::endl;
+
+  read_register();  // immediately transition to read the register
+}
+
+// Temporary: for testing pings
+void
+test_usrp_inband_underrun::build_and_send_ping()
+{
+  
+  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))))));
+
+  std::cout << "[TEST_USRP_INBAND_CS] Ping sent" << std::endl;
+}
+
+// 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_underrun::read_register()
+{
+  d_state = READ_REGISTER;
+
+  long reg = 9;
+
+  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))))));
+  if(verbose)
+    std::cout << "[TEST_USRP_INBAND_REGISTERS] Reading from register " 
+              << reg << std::endl;
+}
+
+// Used to enter the receiving state
+void
+test_usrp_inband_underrun::enter_receiving()
+{
+  d_rx->send(s_cmd_start_recv_raw_samples,
+             pmt_list2(PMT_F,
+                       d_rx_chan));
+}
+
+REGISTER_MBLOCK_CLASS(test_usrp_inband_underrun);