3 * Copyright 2007,2008 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 <mblock/mblock.h>
27 #include <mblock/runtime.h>
28 #include <mblock/protocol_class.h>
29 #include <mblock/exception.h>
30 #include <mblock/msg_queue.h>
31 #include <mblock/message.h>
32 #include <mblock/msg_accepter.h>
33 #include <mblock/class_registry.h>
40 #include <symbols_usrp_server_cs.h>
41 #include <symbols_usrp_channel.h>
42 #include <symbols_usrp_low_level_cs.h>
43 #include <symbols_usrp_tx.h>
45 static bool verbose = true;
47 class test_usrp_tx : public mb_mblock
51 pmt_t d_tx_chan; // returned tx channel handle
63 long d_nsamples_to_send;
64 long d_nsamples_xmitted;
65 long d_nframes_xmitted;
66 long d_samples_per_frame;
69 // for generating sine wave output
70 ui_nco<float,float> d_nco;
74 test_usrp_tx(mb_runtime *runtime, const std::string &instance_name, pmt_t user_arg);
76 void initial_transition();
77 void handle_message(mb_message_sptr msg);
82 void allocate_channel();
84 void enter_transmitting();
85 void build_and_send_next_frame();
86 void handle_xmit_response(pmt_t invocation_handle);
87 void enter_closing_channel();
90 test_usrp_tx::test_usrp_tx(mb_runtime *runtime, const std::string &instance_name, pmt_t user_arg)
91 : mb_mblock(runtime, instance_name, user_arg),
92 d_state(INIT), d_nsamples_to_send((long) 80e6),
93 d_nsamples_xmitted(0),
95 d_samples_per_frame((long)(126 * 4)), // full packet
96 d_done_sending(false),
99 // std::cout << "[TEST_USRP_TX] Initializing...\n";
101 d_tx = define_port("tx0", "usrp-tx", false, mb_port::INTERNAL);
102 d_cs = define_port("cs", "usrp-server-cs", false, mb_port::INTERNAL);
104 //bool fake_usrp_p = true;
105 bool fake_usrp_p = false;
109 pmt_t usrp_dict = pmt_make_dict();
112 pmt_dict_set(usrp_dict,
113 pmt_intern("fake-usrp"),
117 // Specify the RBF to use
118 pmt_dict_set(usrp_dict,
120 pmt_intern("inband_1rxhb_1tx.rbf"));
122 // Set TX and RX interpolations
123 pmt_dict_set(usrp_dict,
124 pmt_intern("interp-tx"),
127 // If unspecified, chooses center frequency from range
128 // pmt_dict_set(usrp_dict,
129 // pmt_intern("rf-freq"),
130 // pmt_from_long(10e6));
132 define_component("server", "usrp_server", usrp_dict);
134 connect("self", "tx0", "server", "tx0");
135 connect("self", "cs", "server", "cs");
139 int interp = 32; // 32 -> 4MS/s
140 double sample_rate = 128e6 / interp;
141 d_nco.set_freq(2*M_PI * freq/sample_rate);
143 // FIXME need to somehow set the interp rate in the USRP.
144 // for now, we'll have the low-level code hardwire it.
147 test_usrp_tx::~test_usrp_tx()
152 test_usrp_tx::initial_transition()
158 test_usrp_tx::handle_message(mb_message_sptr msg)
160 pmt_t event = msg->signal();
161 pmt_t data = msg->data();
163 pmt_t handle = PMT_F;
164 pmt_t status = PMT_F;
165 std::string error_msg;
167 //std::cout << msg << std::endl;
171 if (pmt_eq(event, s_response_open)){
172 status = pmt_nth(1, data);
173 if (pmt_eq(status, PMT_T)){
178 error_msg = "failed to open usrp:";
184 case ALLOCATING_CHANNEL:
185 if (pmt_eq(event, s_response_allocate_channel)){
186 status = pmt_nth(1, data);
187 d_tx_chan = pmt_nth(2, data);
189 if (pmt_eq(status, PMT_T)){
190 enter_transmitting();
194 error_msg = "failed to allocate channel:";
201 if (pmt_eq(event, s_response_xmit_raw_frame)){
202 handle = pmt_nth(0, data);
203 status = pmt_nth(1, data);
205 if (pmt_eq(status, PMT_T)){
206 handle_xmit_response(handle);
210 error_msg = "bad response-xmit-raw-frame:";
216 case CLOSING_CHANNEL:
217 if (pmt_eq(event, s_response_deallocate_channel)){
218 status = pmt_nth(1, data);
220 if (pmt_eq(status, PMT_T)){
225 error_msg = "failed to deallocate channel:";
232 if (pmt_eq(event, s_response_close)){
233 status = pmt_nth(1, data);
235 if (pmt_eq(status, PMT_T)){
240 error_msg = "failed to close USRP:";
252 std::cerr << error_msg << data
253 << "status = " << status << std::endl;
258 std::cout << "test_usrp_inband_tx: unhandled msg: " << msg
259 << "in state "<< d_state << std::endl;
264 test_usrp_tx::open_usrp()
266 pmt_t which_usrp = pmt_from_long(0);
268 d_cs->send(s_cmd_open, pmt_list2(PMT_NIL, which_usrp));
269 d_state = OPENING_USRP;
272 std::cout << "[TEST_USRP_INBAND_TX] Opening the USRP\n";
276 test_usrp_tx::close_usrp()
278 d_cs->send(s_cmd_close, pmt_list1(PMT_NIL));
279 d_state = CLOSING_USRP;
282 std::cout << "[TEST_USRP_INBAND_TX] Closing the USRP\n";
286 test_usrp_tx::allocate_channel()
288 long capacity = (long) 16e6;
289 d_tx->send(s_cmd_allocate_channel, pmt_list2(PMT_T, pmt_from_long(capacity)));
290 d_state = ALLOCATING_CHANNEL;
293 std::cout << "[TEST_USRP_INBAND_TX] Requesting TX channel allocation\n";
297 test_usrp_tx::enter_transmitting()
299 d_state = TRANSMITTING;
300 d_nsamples_xmitted = 0;
303 std::cout << "[TEST_USRP_INBAND_TX] Transmitting...\n";
305 build_and_send_next_frame(); // fire off 4 to start pipeline
306 build_and_send_next_frame();
307 build_and_send_next_frame();
308 build_and_send_next_frame();
312 test_usrp_tx::build_and_send_next_frame()
314 // allocate the uniform vector for the samples
315 // FIXME perhaps hold on to this between calls
318 long nsamples_this_frame =
319 std::min(d_nsamples_to_send - d_nsamples_xmitted,
320 d_samples_per_frame);
322 long nsamples_this_frame = d_samples_per_frame;
325 if (nsamples_this_frame == 0){
326 d_done_sending = true;
331 size_t nshorts = 2 * nsamples_this_frame; // 16-bit I & Q
332 pmt_t uvec = pmt_make_s16vector(nshorts, 0);
334 int16_t *samples = pmt_s16vector_writable_elements(uvec, ignore);
336 // fill in the complex sinusoid
338 for (int i = 0; i < nsamples_this_frame; i++){
342 d_nco.sincos(&s, 1, d_amplitude);
343 // write 16-bit i & q
344 samples[2*i] = (int16_t) s.real();
345 samples[2*i+1] = (int16_t) s.imag();
348 gr_complex s(d_amplitude, d_amplitude);
350 // write 16-bit i & q
351 samples[2*i] = (int16_t) s.real();
352 samples[2*i+1] = (int16_t) s.imag();
356 pmt_t tx_properties = pmt_make_dict();
358 pmt_t timestamp = pmt_from_long(0xffffffff); // NOW
359 d_tx->send(s_cmd_xmit_raw_frame,
360 pmt_list5(pmt_from_long(d_nframes_xmitted), // invocation-handle
361 d_tx_chan, // channel
366 d_nsamples_xmitted += nsamples_this_frame;
370 std::cout << "[TEST_USRP_INBAND_TX] Transmitted frame\n";
375 test_usrp_tx::handle_xmit_response(pmt_t handle)
377 if (d_done_sending &&
378 pmt_to_long(handle) == (d_nframes_xmitted - 1)){
379 // We're done sending and have received all responses
380 enter_closing_channel();
383 build_and_send_next_frame();
387 test_usrp_tx::enter_closing_channel()
389 d_state = CLOSING_CHANNEL;
391 d_tx->send(s_cmd_deallocate_channel, pmt_list2(PMT_NIL, d_tx_chan));
394 std::cout << "[TEST_USRP_INBAND_tX] Deallocating TX channel\n";
397 REGISTER_MBLOCK_CLASS(test_usrp_tx);
400 // ----------------------------------------------------------------
403 main (int argc, char **argv)
405 // handle any command line args here
407 mb_runtime_sptr rt = mb_make_runtime();
408 pmt_t result = PMT_NIL;
410 rt->run("top", "test_usrp_tx", PMT_F, &result);