3 * Copyright 2007 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 #include <mb_mblock.h>
27 #include <mb_runtime.h>
28 #include <mb_runtime_nop.h> // QA only
29 #include <mb_protocol_class.h>
30 #include <mb_exception.h>
31 #include <mb_msg_queue.h>
32 #include <mb_message.h>
33 #include <mb_mblock_impl.h>
34 #include <mb_msg_accepter.h>
35 #include <mb_class_registry.h>
42 #include <symbols_usrp_server_cs.h>
43 #include <symbols_usrp_channel.h>
44 #include <symbols_usrp_low_level_cs.h>
45 #include <symbols_usrp_tx.h>
47 static bool verbose = false;
49 class test_usrp_tx : public mb_mblock
53 pmt_t d_tx_chan; // returned tx channel handle
65 long d_nsamples_to_send;
66 long d_nsamples_xmitted;
67 long d_nframes_xmitted;
68 long d_samples_per_frame;
71 // for generating sine wave output
72 ui_nco<float,float> d_nco;
76 test_usrp_tx(mb_runtime *runtime, const std::string &instance_name, pmt_t user_arg);
78 void initial_transition();
79 void handle_message(mb_message_sptr msg);
84 void allocate_channel();
86 void enter_transmitting();
87 void build_and_send_next_frame();
88 void handle_xmit_response(pmt_t invocation_handle);
89 void enter_closing_channel();
92 test_usrp_tx::test_usrp_tx(mb_runtime *runtime, const std::string &instance_name, pmt_t user_arg)
93 : mb_mblock(runtime, instance_name, user_arg),
94 d_state(INIT), d_nsamples_to_send((long) 40e6),
95 d_nsamples_xmitted(0),
97 //d_samples_per_frame((long)(126)),
98 //d_samples_per_frame((long)(126 * 3.5)), // non-full packet
99 d_samples_per_frame((long)(126 * 4)), // full packet
100 d_done_sending(false),
103 // std::cout << "[TEST_USRP_TX] Initializing...\n";
105 d_tx = define_port("tx0", "usrp-tx", false, mb_port::INTERNAL);
106 d_cs = define_port("cs", "usrp-server-cs", false, mb_port::INTERNAL);
108 //bool fake_usrp_p = true;
109 bool fake_usrp_p = false;
113 pmt_t usrp_dict = pmt_make_dict();
116 pmt_dict_set(usrp_dict,
117 pmt_intern("fake-usrp"),
121 // Specify the RBF to use
122 pmt_dict_set(usrp_dict,
124 pmt_intern("boe3.rbf"));
126 // Set TX and RX interpolations
127 pmt_dict_set(usrp_dict,
128 pmt_intern("interp-tx"),
131 pmt_dict_set(usrp_dict,
132 pmt_intern("interp-rx"),
135 pmt_dict_set(usrp_dict,
136 pmt_intern("rf-freq"),
137 pmt_from_long(10e6));
139 define_component("server", "usrp_server", usrp_dict);
141 connect("self", "tx0", "server", "tx0");
142 connect("self", "cs", "server", "cs");
146 int interp = 32; // 32 -> 4MS/s
147 double sample_rate = 128e6 / interp;
148 d_nco.set_freq(2*M_PI * freq/sample_rate);
150 // FIXME need to somehow set the interp rate in the USRP.
151 // for now, we'll have the low-level code hardwire it.
154 test_usrp_tx::~test_usrp_tx()
159 test_usrp_tx::initial_transition()
165 test_usrp_tx::handle_message(mb_message_sptr msg)
167 pmt_t event = msg->signal();
168 pmt_t data = msg->data();
170 pmt_t handle = PMT_F;
171 pmt_t status = PMT_F;
172 std::string error_msg;
174 //std::cout << msg << std::endl;
178 if (pmt_eq(event, s_response_open)){
179 status = pmt_nth(1, data);
180 if (pmt_eq(status, PMT_T)){
185 error_msg = "failed to open usrp:";
191 case ALLOCATING_CHANNEL:
192 if (pmt_eq(event, s_response_allocate_channel)){
193 status = pmt_nth(1, data);
194 d_tx_chan = pmt_nth(2, data);
196 if (pmt_eq(status, PMT_T)){
197 enter_transmitting();
201 error_msg = "failed to allocate channel:";
208 if (pmt_eq(event, s_response_xmit_raw_frame)){
209 handle = pmt_nth(0, data);
210 status = pmt_nth(1, data);
212 if (pmt_eq(status, PMT_T)){
213 handle_xmit_response(handle);
217 error_msg = "bad response-xmit-raw-frame:";
223 case CLOSING_CHANNEL:
224 if (pmt_eq(event, s_response_deallocate_channel)){
225 status = pmt_nth(1, data);
227 if (pmt_eq(status, PMT_T)){
232 error_msg = "failed to deallocate channel:";
239 if (pmt_eq(event, s_response_close)){
240 status = pmt_nth(1, data);
242 if (pmt_eq(status, PMT_T)){
247 error_msg = "failed to close USRP:";
259 std::cerr << error_msg << data
260 << "status = " << status << std::endl;
265 std::cout << "test_usrp_inband_tx: unhandled msg: " << msg
266 << "in state "<< d_state << std::endl;
271 test_usrp_tx::open_usrp()
273 pmt_t which_usrp = pmt_from_long(0);
275 d_cs->send(s_cmd_open, pmt_list2(PMT_NIL, which_usrp));
276 d_state = OPENING_USRP;
280 test_usrp_tx::close_usrp()
282 d_cs->send(s_cmd_close, pmt_list1(PMT_NIL));
283 d_state = CLOSING_USRP;
287 test_usrp_tx::allocate_channel()
289 long capacity = (long) 16e6;
290 d_tx->send(s_cmd_allocate_channel, pmt_list2(PMT_T, pmt_from_long(capacity)));
291 d_state = ALLOCATING_CHANNEL;
295 test_usrp_tx::enter_transmitting()
297 d_state = TRANSMITTING;
298 d_nsamples_xmitted = 0;
300 // FIXME: carrier sense hack
301 // d_tx->send(s_cmd_to_control_channel, // C/S packet
302 // pmt_list2(PMT_NIL, // invoc handle
304 // pmt_list2(s_op_write_reg,
307 // pmt_from_long(0))))));
309 build_and_send_next_frame(); // fire off 4 to start pipeline
310 build_and_send_next_frame();
311 build_and_send_next_frame();
312 build_and_send_next_frame();
316 test_usrp_tx::build_and_send_next_frame()
318 // allocate the uniform vector for the samples
319 // FIXME perhaps hold on to this between calls
322 long nsamples_this_frame =
323 std::min(d_nsamples_to_send - d_nsamples_xmitted,
324 d_samples_per_frame);
326 long nsamples_this_frame = d_samples_per_frame;
329 if (nsamples_this_frame == 0){
330 d_done_sending = true;
335 size_t nshorts = 2 * nsamples_this_frame; // 16-bit I & Q
336 pmt_t uvec = pmt_make_s16vector(nshorts, 0);
338 int16_t *samples = pmt_s16vector_writeable_elements(uvec, ignore);
340 // fill in the complex sinusoid
342 for (int i = 0; i < nsamples_this_frame; i++){
346 d_nco.sincos(&s, 1, d_amplitude);
347 // write 16-bit i & q
348 samples[2*i] = (int16_t) s.real();
349 samples[2*i+1] = (int16_t) s.imag();
352 gr_complex s(d_amplitude, d_amplitude);
354 // write 16-bit i & q
355 samples[2*i] = (int16_t) s.real();
356 samples[2*i+1] = (int16_t) s.imag();
360 pmt_t timestamp = pmt_from_long(0xffffffff); // NOW
361 d_tx->send(s_cmd_xmit_raw_frame,
362 pmt_list4(pmt_from_long(d_nframes_xmitted), // invocation-handle
363 d_tx_chan, // channel
367 d_nsamples_xmitted += nsamples_this_frame;
371 std::cout << "[TEST_USRP_INBAND_TX] Transmitted frame\n";
376 test_usrp_tx::handle_xmit_response(pmt_t handle)
378 if (d_done_sending &&
379 pmt_to_long(handle) == (d_nframes_xmitted - 1)){
380 // We're done sending and have received all responses
381 enter_closing_channel();
384 build_and_send_next_frame();
388 test_usrp_tx::enter_closing_channel()
390 d_state = CLOSING_CHANNEL;
392 d_tx->send(s_cmd_deallocate_channel, pmt_list2(PMT_NIL, d_tx_chan));
395 REGISTER_MBLOCK_CLASS(test_usrp_tx);
398 // ----------------------------------------------------------------
401 main (int argc, char **argv)
403 // handle any command line args here
405 mb_runtime_sptr rt = mb_make_runtime();
406 pmt_t result = PMT_NIL;
408 rt->run("top", "test_usrp_tx", PMT_F, &result);