3 * Copyright 2008,2009,2010 Free Software Foundation, Inc.
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include <usrp2/usrp2.h>
24 #include <usrp2/tune_result.h>
25 #include <usrp2/copiers.h>
26 #include <gruel/inet.h>
27 #include <gruel/realtime.h>
28 #include <usrp2_types.h>
29 #include "usrp2_impl.h"
30 #include "eth_buffer.h"
31 #include "pktfilter.h"
41 #define USRP2_IMPL_DEBUG 0
43 #define DEBUG_LOG(x) ::write(2, x, 1)
48 static const int DEFAULT_RX_SCALE = 1024;
52 static const double DEF_CMD_TIMEOUT = 0.1;
55 opcode_to_string(int opcode)
58 case OP_EOP: return "OP_EOP";
59 case OP_ID: return "OP_ID";
60 case OP_ID_REPLY: return "OP_ID_REPLY";
61 case OP_BURN_MAC_ADDR: return "OP_BURN_MAC_ADDR";
62 case OP_READ_TIME: return "OP_READ_TIME";
63 case OP_READ_TIME_REPLY: return "OP_READ_TIME_REPLY";
64 case OP_CONFIG_RX_V2: return "OP_CONFIG_RX_V2";
65 case OP_CONFIG_RX_REPLY_V2: return "OP_CONFIG_RX_REPLY_V2";
66 case OP_CONFIG_TX_V2: return "OP_CONFIG_TX_V2";
67 case OP_CONFIG_TX_REPLY_V2: return "OP_CONFIG_TX_REPLY_V2";
68 case OP_START_RX_STREAMING: return "OP_START_RX_STREAMING";
69 case OP_STOP_RX: return "OP_STOP_RX";
70 case OP_CONFIG_MIMO: return "OP_CONFIG_MIMO";
71 case OP_DBOARD_INFO: return "OP_DBOARD_INFO";
72 case OP_DBOARD_INFO_REPLY: return "OP_DBOARD_INFO_REPLY";
73 case OP_SYNC_TO_PPS: return "OP_SYNC_TO_PPS";
74 case OP_PEEK: return "OP_PEEK";
75 case OP_PEEK_REPLY: return "OP_PEEK_REPLY";
76 case OP_SET_TX_LO_OFFSET: return "OP_SET_TX_LO_OFFSET";
77 case OP_SET_TX_LO_OFFSET_REPLY: return "OP_SET_TX_LO_OFFSET_REPLY";
78 case OP_SET_RX_LO_OFFSET: return "OP_SET_RX_LO_OFFSET";
79 case OP_SET_RX_LO_OFFSET_REPLY: return "OP_SET_RX_LO_OFFSET_REPLY";
80 case OP_SYNC_EVERY_PPS: return "OP_SYNC_EVERY_PPS";
81 case OP_SYNC_EVERY_PPS_REPLY: return "OP_SYNC_EVERY_PPS_REPLY";
85 snprintf(buf, sizeof(buf), "<unknown opcode: %d>", opcode);
92 * \param p points to fixed header
93 * \param payload_len_in_bytes is length of the fixed hdr and the payload
94 * \param[out] items is set to point to the first uint32 item in the payload
95 * \param[out] nitems is set to the number of uint32 items in the payload
96 * \param[out] md is filled in with the parsed metadata from the frame.
99 parse_rx_metadata(void *p, size_t payload_len_in_bytes,
100 uint32_t **items, size_t *nitems_in_uint32s, rx_metadata *md)
102 if (payload_len_in_bytes < sizeof(u2_fixed_hdr_t)) // invalid format
105 // FIXME deal with the fact that (p % 4) == 2
106 //assert((((uintptr_t) p) % 4) == 0); // must be 4-byte aligned
108 u2_fixed_hdr_t *fh = static_cast<u2_fixed_hdr_t *>(p);
110 // FIXME unaligned loads!
111 md->word0 = u2p_word0(fh);
112 md->timestamp = u2p_timestamp(fh);
114 // FIXME when we've got more info
115 // md->start_of_burst = (md->word0 & XXX) != 0;
116 // md->end_of_burst = (md->word0 & XXX) != 0;
117 // md->rx_overrun = (md->word0 & XXX) != 0;
118 md->start_of_burst = 0;
119 md->end_of_burst = 0;
122 *items = (uint32_t *)(&fh[1]);
123 size_t nbytes = payload_len_in_bytes - sizeof(u2_fixed_hdr_t);
124 assert((nbytes % sizeof(uint32_t)) == 0);
125 *nitems_in_uint32s = nbytes / sizeof(uint32_t);
131 usrp2::impl::impl(const std::string &ifc, props *p, size_t rx_bufsize)
132 : d_eth_buf(new eth_buffer(rx_bufsize)), d_interface_name(ifc), d_pf(0),
133 d_bg_running(false), d_rx_seqno(-1), d_tx_seqno(0), d_next_rid(0),
134 d_num_rx_frames(0), d_num_rx_missing(0), d_num_rx_overruns(0), d_num_rx_bytes(0),
135 d_num_enqueued(0), d_enqueued_mutex(), d_bg_pending_cond(),
136 d_channel_rings(NCHANS), d_tx_interp(0), d_rx_decim(0), d_dont_enqueue(true)
138 if (!d_eth_buf->open(ifc, htons(U2_ETHERTYPE)))
139 throw std::runtime_error("Unable to register USRP2 protocol");
143 // Create a packet filter for U2_ETHERTYPE packets sourced from target USRP2
144 u2_mac_addr_t usrp_mac;
145 parse_mac_addr(d_addr, &usrp_mac);
146 d_pf = pktfilter::make_ethertype_inbound_target(U2_ETHERTYPE, (const unsigned char*)&(usrp_mac.addr));
147 if (!d_pf || !d_eth_buf->attach_pktfilter(d_pf))
148 throw std::runtime_error("Unable to attach packet filter.");
150 if (USRP2_IMPL_DEBUG)
151 std::cerr << "usrp2 constructor: using USRP2 at " << d_addr << std::endl;
153 memset(d_pending_replies, 0, sizeof(d_pending_replies));
155 // Kick off receive thread
158 // In case the USRP2 was left streaming RX
159 // FIXME: only one channel right now
160 stop_rx_streaming(0);
162 if (!dboard_info()) // we're hosed
163 throw std::runtime_error("Unable to retrieve daughterboard info");
168 tx_daughterboard_id(&dbid);
169 fprintf(stderr, "Tx dboard 0x%x\n", dbid);
170 fprintf(stderr, " freq_min = %g\n", tx_freq_min());
171 fprintf(stderr, " freq_max = %g\n", tx_freq_max());
172 fprintf(stderr, " gain_min = %g\n", tx_gain_min());
173 fprintf(stderr, " gain_max = %g\n", tx_gain_max());
174 fprintf(stderr, " gain_db_per_step = %g\n", tx_gain_db_per_step());
176 rx_daughterboard_id(&dbid);
177 fprintf(stderr, "Rx dboard 0x%x\n", dbid);
178 fprintf(stderr, " freq_min = %g\n", rx_freq_min());
179 fprintf(stderr, " freq_max = %g\n", rx_freq_max());
180 fprintf(stderr, " gain_min = %g\n", rx_gain_min());
181 fprintf(stderr, " gain_max = %g\n", rx_gain_max());
182 fprintf(stderr, " gain_db_per_step = %g\n", rx_gain_db_per_step());
185 // Ensure any custom values in hardware are cleared
187 std::cerr << "usrp2::ctor reset_db failed\n";
189 // default gains to mid point
190 if (!set_tx_gain((tx_gain_min() + tx_gain_max()) / 2))
191 std::cerr << "usrp2::ctor set_tx_gain failed\n";
193 if (!set_rx_gain((rx_gain_min() + rx_gain_max()) / 2))
194 std::cerr << "usrp2::ctor set_rx_gain failed\n";
196 // default interp and decim
197 if (!set_tx_interp(12))
198 std::cerr << "usrp2::ctor set_tx_interp failed\n";
200 if (!set_rx_decim(12))
201 std::cerr << "usrp2::ctor set_rx_decim failed\n";
203 // set workable defaults for scaling
204 if (!set_rx_scale_iq(DEFAULT_RX_SCALE, DEFAULT_RX_SCALE))
205 std::cerr << "usrp2::ctor set_rx_scale_iq failed\n";
215 if (USRP2_IMPL_DEBUG) {
216 std::cerr << std::endl
217 << "usrp2 destructor: received " << d_num_rx_frames
218 << " frames, with " << d_num_rx_missing << " lost ("
219 << (d_num_rx_frames == 0 ? 0 : (int)(100.0*d_num_rx_missing/d_num_rx_frames))
220 << "%), totaling " << d_num_rx_bytes
221 << " bytes" << std::endl;
226 usrp2::impl::parse_mac_addr(const std::string &s, u2_mac_addr_t *p)
228 p->addr[0] = 0x00; // Matt's IAB
240 return sscanf(s.c_str(), "%hhx:%hhx", &p->addr[4], &p->addr[5]) == 2;
243 return sscanf(s.c_str(), "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
244 &p->addr[0], &p->addr[1], &p->addr[2],
245 &p->addr[3], &p->addr[4], &p->addr[5]) == 6;
252 usrp2::impl::init_et_hdrs(u2_eth_packet_t *p, const std::string &dst)
254 p->ehdr.ethertype = htons(U2_ETHERTYPE);
255 parse_mac_addr(dst, &p->ehdr.dst);
256 memcpy(&p->ehdr.src, d_eth_buf->mac(), 6);
257 p->thdr.flags = 0; // FIXME transport header values?
258 p->thdr.seqno = d_tx_seqno++;
263 usrp2::impl::init_etf_hdrs(u2_eth_packet_t *p, const std::string &dst,
264 int word0_flags, int chan, uint32_t timestamp)
266 init_et_hdrs(p, dst);
267 u2p_set_word0(&p->fixed, word0_flags, chan);
268 u2p_set_timestamp(&p->fixed, timestamp);
270 if (chan == CONTROL_CHAN) { // no sequence numbers, back it out
277 usrp2::impl::init_config_rx_v2_cmd(op_config_rx_v2_cmd *cmd)
279 memset(cmd, 0, sizeof(*cmd));
280 init_etf_hdrs(&cmd->h, d_addr, 0, CONTROL_CHAN, -1);
281 cmd->op.opcode = OP_CONFIG_RX_V2;
282 cmd->op.len = sizeof(cmd->op);
283 cmd->op.rid = d_next_rid++;
284 cmd->eop.opcode = OP_EOP;
285 cmd->eop.len = sizeof(cmd->eop);
289 usrp2::impl::init_config_tx_v2_cmd(op_config_tx_v2_cmd *cmd)
291 memset(cmd, 0, sizeof(*cmd));
292 init_etf_hdrs(&cmd->h, d_addr, 0, CONTROL_CHAN, -1);
293 cmd->op.opcode = OP_CONFIG_TX_V2;
294 cmd->op.len = sizeof(cmd->op);
295 cmd->op.rid = d_next_rid++;
296 cmd->eop.opcode = OP_EOP;
297 cmd->eop.len = sizeof(cmd->eop);
302 usrp2::impl::transmit_cmd(void *cmd_, size_t len_)
304 const void *cmd = cmd_;
306 unsigned char tmp[64];
308 if (len_ < 64){ // pad to minimum ethernet frame size
309 memset(tmp, 0, sizeof(tmp));
310 memcpy(tmp, cmd_, len_);
315 return d_eth_buf->tx_frame(cmd, len) == eth_buffer::EB_OK;
319 usrp2::impl::transmit_cmd_and_wait(void *cmd, size_t len, pending_reply *p, double secs)
321 d_pending_replies[p->rid()] = p;
323 if (!transmit_cmd(cmd, len)){
324 d_pending_replies[p->rid()] = 0;
328 int res = p->wait_for_completion(secs);
329 d_pending_replies[p->rid()] = 0;
333 // ----------------------------------------------------------------
334 // Background loop: received packet demuxing
335 // ----------------------------------------------------------------
338 usrp2::impl::start_bg()
340 d_rx_tg.create_thread(boost::bind(&usrp2::impl::bg_loop, this));
344 usrp2::impl::stop_bg()
346 d_bg_running = false;
347 d_bg_pending_cond.notify_one(); // FIXME: check if needed
352 usrp2::impl::bg_loop()
354 gruel::enable_realtime_scheduling();
357 while(d_bg_running) {
359 // Receive available frames from ethernet buffer. Handler will
360 // process control frames, enqueue data packets in channel
361 // rings, and signal blocked API threads
362 int res = d_eth_buf->rx_frames(this, 100); // FIXME magic timeout
363 if (res == eth_buffer::EB_ERROR)
366 // Wait for user API thread(s) to process all enqueued packets.
367 // The channel ring thread that decrements d_num_enqueued to zero
368 // will signal this thread to continue.
370 gruel::scoped_lock l(d_enqueued_mutex);
371 while(d_num_enqueued > 0 && d_bg_running)
372 d_bg_pending_cond.wait(l);
375 d_bg_running = false;
379 // passed to eth_buffer::rx_frames
382 usrp2::impl::operator()(const void *base, size_t len)
384 u2_eth_samples_t *pkt = (u2_eth_samples_t *)base;
386 // FIXME unaligned load!
387 int chan = u2p_chan(&pkt->hdrs.fixed);
389 if (chan == CONTROL_CHAN) { // control packets
391 return handle_control_packet(base, len);
393 else { // data packets
395 if (d_dont_enqueue) // toss packet
396 return data_handler::RELEASE;
398 return handle_data_packet(base, len);
405 usrp2::impl::handle_control_packet(const void *base, size_t len)
407 // point to beginning of payload (subpackets)
408 unsigned char *p = (unsigned char *)base + sizeof(u2_eth_packet_t);
410 // FIXME (p % 4) == 2. Not good. Must watch for unaligned loads.
412 // FIXME iterate over payload, handling more than a single subpacket.
415 unsigned int oplen = p[1];
416 unsigned int rid = p[2];
418 pending_reply *rp = d_pending_replies[rid];
420 unsigned int buflen = rp->len();
421 if (oplen != buflen) {
422 std::cerr << "usrp2: mismatched command reply length (expected: "
423 << buflen << " got: " << oplen << "). "
424 << "op = " << opcode_to_string(opcode) << std::endl;
427 // Copy reply into caller's buffer
428 memcpy(rp->buffer(), p, std::min(oplen, buflen));
429 rp->notify_completion();
430 d_pending_replies[rid] = 0;
431 return data_handler::RELEASE;
434 // TODO: handle unsolicited, USRP2 initiated, or late replies
436 return data_handler::RELEASE;
440 usrp2::impl::handle_data_packet(const void *base, size_t len)
442 u2_eth_samples_t *pkt = (u2_eth_samples_t *)base;
444 d_num_rx_bytes += len;
446 /* --- FIXME start of fake transport layer handler --- */
448 if (d_rx_seqno != -1) {
449 int expected_seqno = (d_rx_seqno + 1) & 0xFF;
450 int seqno = pkt->hdrs.thdr.seqno;
452 if (seqno != expected_seqno) {
453 ::write(2, "S", 1); // missing sequence number
454 int missing = seqno - expected_seqno;
459 d_num_rx_missing += missing;
463 d_rx_seqno = pkt->hdrs.thdr.seqno;
465 /* --- end of fake transport layer handler --- */
467 // FIXME unaligned load!
468 unsigned int chan = u2p_chan(&pkt->hdrs.fixed);
471 gruel::scoped_lock l(d_channel_rings_mutex);
473 if (!d_channel_rings[chan]) {
475 return data_handler::RELEASE; // discard packet, no channel handler
478 // Strip off ethernet header and transport header and enqueue the rest
480 size_t offset = offsetof(u2_eth_samples_t, hdrs.fixed);
481 if (d_channel_rings[chan]->enqueue(&pkt->hdrs.fixed, len-offset)) {
484 return data_handler::KEEP; // channel ring runner will mark frame done
488 return data_handler::RELEASE; // discard, no room in channel ring
490 return data_handler::RELEASE;
495 // ----------------------------------------------------------------
497 // ----------------------------------------------------------------
500 usrp2::impl::set_rx_antenna(int ant){
501 op_config_mimo_cmd cmd;
504 memset(&cmd, 0, sizeof(cmd));
505 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
506 cmd.op.opcode = OP_RX_ANTENNA;
507 cmd.op.len = sizeof(cmd.op);
508 cmd.op.rid = d_next_rid++;
510 cmd.eop.opcode = OP_EOP;
511 cmd.eop.len = sizeof(cmd.eop);
513 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
514 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
517 return ntohx(reply.ok) == 1;
521 usrp2::impl::set_rx_gain(double gain)
523 op_config_rx_v2_cmd cmd;
524 op_config_rx_reply_v2_t reply;
526 init_config_rx_v2_cmd(&cmd);
527 cmd.op.valid = htons(CFGV_GAIN);
528 cmd.op.gain = htons(u2_double_to_fxpt_gain(gain));
530 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
531 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
534 bool success = (ntohx(reply.ok) == 1);
539 usrp2::impl::set_rx_lo_offset(double frequency)
544 memset(&cmd, 0, sizeof(cmd));
545 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
546 cmd.op.opcode = OP_SET_RX_LO_OFFSET;
547 cmd.op.len = sizeof(cmd.op);
548 cmd.op.rid = d_next_rid++;
550 u2_fxpt_freq_t fxpt = u2_double_to_fxpt_freq(frequency);
551 cmd.op.freq_hi = htonl(u2_fxpt_freq_hi(fxpt));
552 cmd.op.freq_lo = htonl(u2_fxpt_freq_lo(fxpt));
554 cmd.eop.opcode = OP_EOP;
555 cmd.eop.len = sizeof(cmd.eop);
557 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
558 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
561 bool success = (ntohx(reply.ok) == 1);
566 usrp2::impl::set_rx_center_freq(double frequency, tune_result *result)
568 op_config_rx_v2_cmd cmd;
569 op_config_rx_reply_v2_t reply;
571 init_config_rx_v2_cmd(&cmd);
572 cmd.op.valid = htons(CFGV_FREQ);
573 u2_fxpt_freq_t fxpt = u2_double_to_fxpt_freq(frequency);
574 cmd.op.freq_hi = htonl(u2_fxpt_freq_hi(fxpt));
575 cmd.op.freq_lo = htonl(u2_fxpt_freq_lo(fxpt));
577 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
578 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
581 bool success = (ntohx(reply.ok) == 1);
582 if (result && success) {
583 result->baseband_freq =
584 u2_fxpt_freq_to_double(
585 u2_fxpt_freq_from_hilo(ntohl(reply.baseband_freq_hi),
586 ntohl(reply.baseband_freq_lo)));
589 u2_fxpt_freq_to_double(
590 u2_fxpt_freq_from_hilo(ntohl(reply.ddc_freq_hi),
591 ntohl(reply.ddc_freq_lo)));
593 result->residual_freq =
594 u2_fxpt_freq_to_double(
595 u2_fxpt_freq_from_hilo(ntohl(reply.residual_freq_hi),
596 ntohl(reply.residual_freq_lo)));
598 result->spectrum_inverted = (bool)(ntohx(reply.inverted) == 1);
605 usrp2::impl::set_rx_decim(int decimation_factor)
607 op_config_rx_v2_cmd cmd;
608 op_config_rx_reply_v2_t reply;
610 init_config_rx_v2_cmd(&cmd);
611 cmd.op.valid = htons(CFGV_INTERP_DECIM);
612 cmd.op.decim = htonl(decimation_factor);
614 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
615 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
618 bool success = (ntohx(reply.ok) == 1);
620 d_rx_decim = decimation_factor;
625 usrp2::impl::set_rx_scale_iq(int scale_i, int scale_q)
627 op_config_rx_v2_cmd cmd;
628 op_config_rx_reply_v2_t reply;
630 init_config_rx_v2_cmd(&cmd);
631 cmd.op.valid = htons(CFGV_SCALE_IQ);
632 cmd.op.scale_iq = htonl(((scale_i & 0xffff) << 16) | (scale_q & 0xffff));
634 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
635 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
638 bool success = (ntohx(reply.ok) == 1);
643 usrp2::impl::start_rx_streaming(unsigned int channel, unsigned int items_per_frame)
645 if (channel > MAX_CHAN) {
646 std::cerr << "usrp2: invalid channel number (" << channel
651 if (channel > 0) { // until firmware supports multiple streams
652 std::cerr << "usrp2: channel " << channel
653 << " not implemented" << std::endl;
658 gruel::scoped_lock l(d_channel_rings_mutex);
659 if (d_channel_rings[channel]) {
660 std::cerr << "usrp2: channel " << channel
661 << " already streaming" << std::endl;
665 if (items_per_frame == 0)
666 items_per_frame = U2_MAX_SAMPLES; // minimize overhead
668 op_start_rx_streaming_cmd cmd;
671 memset(&cmd, 0, sizeof(cmd));
672 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
673 cmd.op.opcode = OP_START_RX_STREAMING;
674 cmd.op.len = sizeof(cmd.op);
675 cmd.op.rid = d_next_rid++;
676 cmd.op.items_per_frame = htonl(items_per_frame);
677 cmd.eop.opcode = OP_EOP;
678 cmd.eop.len = sizeof(cmd.eop);
680 d_dont_enqueue = false;
681 bool success = false;
682 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
683 success = transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT);
684 success = success && (ntohx(reply.ok) == 1);
687 d_channel_rings[channel] = ring_sptr(new ring(d_eth_buf->max_frames()));
689 d_dont_enqueue = true;
691 //fprintf(stderr, "usrp2::start_rx_streaming: success = %d\n", success);
697 usrp2::impl::start_rx_streaming_at(unsigned int channel, unsigned int items_per_frame, unsigned int time)
699 if (channel > MAX_CHAN) {
700 std::cerr << "usrp2: invalid channel number (" << channel
705 if (channel > 0) { // until firmware supports multiple streams
706 std::cerr << "usrp2: channel " << channel
707 << " not implemented" << std::endl;
712 gruel::scoped_lock guard(d_channel_rings_mutex);
713 if (d_channel_rings[channel]) {
714 std::cerr << "usrp2: channel " << channel
715 << " already streaming" << std::endl;
719 if (items_per_frame == 0)
720 items_per_frame = U2_MAX_SAMPLES; // minimize overhead
722 op_start_rx_streaming_cmd cmd;
725 memset(&cmd, 0, sizeof(cmd));
726 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, time);
727 cmd.op.opcode = OP_START_RX_STREAMING;
728 cmd.op.len = sizeof(cmd.op);
729 cmd.op.rid = d_next_rid++;
730 cmd.op.items_per_frame = htonl(items_per_frame);
731 cmd.eop.opcode = OP_EOP;
732 cmd.eop.len = sizeof(cmd.eop);
734 d_dont_enqueue = false;
735 bool success = false;
736 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
737 success = transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT);
738 success = success && (ntohx(reply.ok) == 1);
741 d_channel_rings[channel] = ring_sptr(new ring(d_eth_buf->max_frames()));
743 d_dont_enqueue = true;
750 usrp2::impl::sync_and_start_rx_streaming_at(unsigned int channel, unsigned int items_per_frame, unsigned int time)
753 if (channel > MAX_CHAN) {
754 std::cerr << "usrp2: invalid channel number (" << channel
759 if (channel > 0) { // until firmware supports multiple streams
760 std::cerr << "usrp2: channel " << channel
761 << " not implemented" << std::endl;
766 gruel::scoped_lock guard(d_channel_rings_mutex);
767 if (d_channel_rings[channel]) {
768 std::cerr << "usrp2: channel " << channel
769 << " already streaming" << std::endl;
773 if (items_per_frame == 0)
774 items_per_frame = U2_MAX_SAMPLES; // minimize overhead
776 op_sync_and_start_rx_streaming_cmd cmd;
779 memset(&cmd, 0, sizeof(cmd));
780 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, time);
781 cmd.sync_op.opcode = OP_SYNC_TO_PPS;
782 cmd.sync_op.len = sizeof(cmd.sync_op);
783 cmd.sync_op.rid = d_next_rid++;
784 cmd.rx_op.opcode = OP_START_RX_STREAMING;
785 cmd.rx_op.len = sizeof(cmd.rx_op);
786 cmd.rx_op.rid = d_next_rid++;
787 cmd.rx_op.items_per_frame = htonl(items_per_frame);
788 cmd.eop.opcode = OP_EOP;
789 cmd.eop.len = sizeof(cmd.eop);
791 d_dont_enqueue = false;
792 bool success = false;
793 pending_reply p(cmd.sync_op.rid, &reply, sizeof(reply));
794 success = transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT);
795 success = success && (ntohx(reply.ok) == 1);
798 d_channel_rings[channel] = ring_sptr(new ring(d_eth_buf->max_frames()));
800 d_dont_enqueue = true;
807 usrp2::impl::stop_rx_streaming(unsigned int channel)
809 if (channel > MAX_CHAN) {
810 std::cerr << "usrp2: invalid channel number (" << channel
815 if (channel > 0) { // until firmware supports multiple streams
816 std::cerr << "usrp2: channel " << channel
817 << " not implemented" << std::endl;
821 d_dont_enqueue = true; // no new samples
822 flush_rx_samples(channel); // dump any we may already have
828 gruel::scoped_lock l(d_channel_rings_mutex);
830 memset(&cmd, 0, sizeof(cmd));
831 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
832 cmd.op.opcode = OP_STOP_RX;
833 cmd.op.len = sizeof(cmd.op);
834 cmd.op.rid = d_next_rid++;
835 cmd.eop.opcode = OP_EOP;
836 cmd.eop.len = sizeof(cmd.eop);
838 bool success = false;
839 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
840 success = transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT);
841 success = success && (ntohx(reply.ok) == 1);
842 d_channel_rings[channel].reset();
843 //fprintf(stderr, "usrp2::stop_rx_streaming: success = %d\n", success);
849 usrp2::impl::rx_samples(unsigned int channel, rx_sample_handler *handler)
851 if (channel > MAX_CHAN) {
852 std::cerr << "usrp2: invalid channel (" << channel
853 << " )" << std::endl;
858 std::cerr << "usrp2: channel " << channel
859 << " not implemented" << std::endl;
863 ring_sptr rp = d_channel_rings[channel];
865 std::cerr << "usrp2: channel " << channel
866 << " not receiving" << std::endl;
870 // Wait for frames available in channel ring
872 rp->wait_for_not_empty();
875 // Iterate through frames and present to user
877 size_t frame_len_in_bytes;
878 while (rp->dequeue(&p, &frame_len_in_bytes)) {
879 uint32_t *items; // points to beginning of data items
880 size_t nitems_in_uint32s;
882 if (!parse_rx_metadata(p, frame_len_in_bytes, &items, &nitems_in_uint32s, &md))
885 bool want_more = (*handler)(items, nitems_in_uint32s, &md);
886 d_eth_buf->release_frame(p);
897 usrp2::impl::flush_rx_samples(unsigned int channel)
899 if (channel > MAX_CHAN) {
900 std::cerr << "usrp2: invalid channel (" << channel
901 << " )" << std::endl;
906 std::cerr << "usrp2: channel " << channel
907 << " not implemented" << std::endl;
911 ring_sptr rp = d_channel_rings[channel];
916 // Iterate through frames and drop them
918 size_t frame_len_in_bytes;
919 while (rp->dequeue(&p, &frame_len_in_bytes)) {
920 d_eth_buf->release_frame(p);
926 // ----------------------------------------------------------------
928 // ----------------------------------------------------------------
931 usrp2::impl::set_tx_antenna(int ant){
932 op_config_mimo_cmd cmd;
935 memset(&cmd, 0, sizeof(cmd));
936 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
937 cmd.op.opcode = OP_TX_ANTENNA;
938 cmd.op.len = sizeof(cmd.op);
939 cmd.op.rid = d_next_rid++;
941 cmd.eop.opcode = OP_EOP;
942 cmd.eop.len = sizeof(cmd.eop);
944 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
945 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
948 return ntohx(reply.ok) == 1;
952 usrp2::impl::set_tx_gain(double gain)
954 op_config_tx_v2_cmd cmd;
955 op_config_tx_reply_v2_t reply;
957 init_config_tx_v2_cmd(&cmd);
958 cmd.op.valid = htons(CFGV_GAIN);
959 cmd.op.gain = htons(u2_double_to_fxpt_gain(gain));
961 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
962 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
965 bool success = (ntohx(reply.ok) == 1);
970 usrp2::impl::set_tx_lo_offset(double frequency)
975 memset(&cmd, 0, sizeof(cmd));
976 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
977 cmd.op.opcode = OP_SET_TX_LO_OFFSET;
978 cmd.op.len = sizeof(cmd.op);
979 cmd.op.rid = d_next_rid++;
981 u2_fxpt_freq_t fxpt = u2_double_to_fxpt_freq(frequency);
982 cmd.op.freq_hi = htonl(u2_fxpt_freq_hi(fxpt));
983 cmd.op.freq_lo = htonl(u2_fxpt_freq_lo(fxpt));
985 cmd.eop.opcode = OP_EOP;
986 cmd.eop.len = sizeof(cmd.eop);
988 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
989 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
992 bool success = (ntohx(reply.ok) == 1);
997 usrp2::impl::set_tx_center_freq(double frequency, tune_result *result)
999 op_config_tx_v2_cmd cmd;
1000 op_config_tx_reply_v2_t reply;
1002 init_config_tx_v2_cmd(&cmd);
1003 cmd.op.valid = htons(CFGV_FREQ);
1004 u2_fxpt_freq_t fxpt = u2_double_to_fxpt_freq(frequency);
1005 cmd.op.freq_hi = htonl(u2_fxpt_freq_hi(fxpt));
1006 cmd.op.freq_lo = htonl(u2_fxpt_freq_lo(fxpt));
1008 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1009 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1012 bool success = (ntohx(reply.ok) == 1);
1013 if (result && success) {
1014 result->baseband_freq =
1015 u2_fxpt_freq_to_double(
1016 u2_fxpt_freq_from_hilo(ntohl(reply.baseband_freq_hi),
1017 ntohl(reply.baseband_freq_lo)));
1020 u2_fxpt_freq_to_double(
1021 u2_fxpt_freq_from_hilo(ntohl(reply.duc_freq_hi),
1022 ntohl(reply.duc_freq_lo)));
1024 result->residual_freq =
1025 u2_fxpt_freq_to_double(
1026 u2_fxpt_freq_from_hilo(ntohl(reply.residual_freq_hi),
1027 ntohl(reply.residual_freq_lo)));
1029 result->spectrum_inverted = (bool)(ntohx(reply.inverted) == 1);
1036 usrp2::impl::set_tx_interp(int interpolation_factor)
1038 op_config_tx_v2_cmd cmd;
1039 op_config_tx_reply_v2_t reply;
1041 init_config_tx_v2_cmd(&cmd);
1042 cmd.op.valid = htons(CFGV_INTERP_DECIM);
1043 cmd.op.interp = htonl(interpolation_factor);
1045 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1046 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1049 bool success = (ntohx(reply.ok) == 1);
1051 d_tx_interp = interpolation_factor;
1053 // Auto-set TX scaling based on interpolation rate
1054 int scale_i, scale_q;
1055 default_tx_scale_iq(d_tx_interp, &scale_i, &scale_q);
1056 return set_tx_scale_iq(scale_i, scale_q);
1063 usrp2::impl::default_tx_scale_iq(int interpolation_factor, int *scale_i, int *scale_q)
1065 // Calculate CIC interpolation (i.e., without halfband interpolators)
1066 int i = interpolation_factor;
1072 // Calculate dsp_core_tx gain absent scale multipliers
1073 float gain = (1.65*i*i*i)/(4096*pow(2, ceil(log2(i*i*i))));
1075 // Calculate closest multiplier constant to reverse gain
1076 int scale = (int)rint(1.0/gain);
1077 // fprintf(stderr, "if=%i i=%i gain=%f scale=%i\n", interpolation_factor, i, gain, scale);
1079 // Both I and Q are identical in this case
1087 usrp2::impl::set_tx_scale_iq(int scale_i, int scale_q)
1089 op_config_tx_v2_cmd cmd;
1090 op_config_tx_reply_v2_t reply;
1092 init_config_tx_v2_cmd(&cmd);
1093 cmd.op.valid = htons(CFGV_SCALE_IQ);
1094 cmd.op.scale_iq = htonl(((scale_i & 0xffff) << 16) | (scale_q & 0xffff));
1096 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1097 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1100 bool success = (ntohx(reply.ok) == 1);
1105 usrp2::impl::tx_32fc(unsigned int channel,
1106 const std::complex<float> *samples,
1108 const tx_metadata *metadata)
1110 uint32_t items[nsamples];
1111 copy_host_32fc_to_u2_16sc(nsamples, samples, items);
1112 return tx_raw(channel, items, nsamples, metadata);
1116 usrp2::impl::tx_16sc(unsigned int channel,
1117 const std::complex<int16_t> *samples,
1119 const tx_metadata *metadata)
1121 #ifdef WORDS_BIGENDIAN
1123 // Already binary equivalent to 16-bit I/Q on the wire.
1124 // No conversion required.
1126 assert(sizeof(samples[0]) == sizeof(uint32_t));
1127 return tx_raw(channel, (const uint32_t *) samples, nsamples, metadata);
1131 uint32_t items[nsamples];
1132 copy_host_16sc_to_u2_16sc(nsamples, samples, items);
1133 return tx_raw(channel, items, nsamples, metadata);
1139 usrp2::impl::tx_raw(unsigned int channel,
1140 const uint32_t *items,
1142 const tx_metadata *metadata)
1147 // FIXME can't deal with nitems < U2_MIN_SAMPLES (will be fixed in VRT)
1148 // FIXME need to check the MTU instead of assuming 1500 bytes
1150 // fragment as necessary then fire away
1152 size_t nframes = (nitems + U2_MAX_SAMPLES - 1) / U2_MAX_SAMPLES;
1153 size_t last_frame = nframes - 1;
1154 u2_eth_packet_t hdrs;
1157 for (size_t fn = 0; fn < nframes; fn++){
1158 uint32_t timestamp = 0;
1162 timestamp = metadata->timestamp;
1163 if (metadata->send_now)
1164 flags |= U2P_TX_IMMEDIATE;
1165 if (metadata->start_of_burst)
1166 flags |= U2P_TX_START_OF_BURST;
1169 flags |= U2P_TX_IMMEDIATE;
1171 if (fn == last_frame){
1172 if (metadata->end_of_burst)
1173 flags |= U2P_TX_END_OF_BURST;
1176 init_etf_hdrs(&hdrs, d_addr, flags, channel, timestamp);
1178 // Avoid short packet by splitting last two packets if reqd
1180 if ((nitems - n) > U2_MAX_SAMPLES && (nitems - n) < (U2_MAX_SAMPLES + U2_MIN_SAMPLES))
1181 i = (nitems - n) / 2;
1183 i = std::min((size_t) U2_MAX_SAMPLES, nitems - n);
1186 iov[0].iov_base = &hdrs;
1187 iov[0].iov_len = sizeof(hdrs);
1188 iov[1].iov_base = const_cast<uint32_t *>(&items[n]);
1189 iov[1].iov_len = i * sizeof(uint32_t);
1191 size_t total = iov[0].iov_len + iov[1].iov_len;
1193 fprintf(stderr, "usrp2::tx_raw: FIXME: short packet: %zd items (%zd bytes)\n", i, total);
1195 if (d_eth_buf->tx_framev(iov, 2) != eth_buffer::EB_OK){
1205 // ----------------------------------------------------------------
1207 // ----------------------------------------------------------------
1210 usrp2::impl::config_mimo(int flags)
1212 op_config_mimo_cmd cmd;
1215 memset(&cmd, 0, sizeof(cmd));
1216 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1217 cmd.op.opcode = OP_CONFIG_MIMO;
1218 cmd.op.len = sizeof(cmd.op);
1219 cmd.op.rid = d_next_rid++;
1220 cmd.op.flags = flags;
1221 cmd.eop.opcode = OP_EOP;
1222 cmd.eop.len = sizeof(cmd.eop);
1224 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1225 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1228 return ntohx(reply.ok) == 1;
1232 usrp2::impl::fpga_master_clock_freq(long *freq)
1234 *freq = 100000000L; // 100 MHz
1239 usrp2::impl::adc_rate(long *rate)
1241 return fpga_master_clock_freq(rate);
1245 usrp2::impl::dac_rate(long *rate)
1247 return fpga_master_clock_freq(rate);
1251 usrp2::impl::tx_daughterboard_id(int *dbid)
1253 *dbid = d_tx_db_info.dbid;
1258 usrp2::impl::rx_daughterboard_id(int *dbid)
1260 *dbid = d_rx_db_info.dbid;
1265 // ----------------------------------------------------------------
1266 // low-level commands
1267 // ----------------------------------------------------------------
1270 usrp2::impl::burn_mac_addr(const std::string &new_addr)
1272 op_burn_mac_addr_cmd cmd;
1275 memset(&cmd, 0, sizeof(cmd));
1276 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1277 cmd.op.opcode = OP_BURN_MAC_ADDR;
1278 cmd.op.len = sizeof(cmd.op);
1279 cmd.op.rid = d_next_rid++;
1280 if (!parse_mac_addr(new_addr, &cmd.op.addr))
1283 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1284 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, 4*DEF_CMD_TIMEOUT))
1287 bool success = (ntohx(reply.ok) == 1);
1292 fill_dboard_info(db_info *dst, const u2_db_info_t *src)
1294 dst->dbid = ntohl(src->dbid);
1297 u2_fxpt_freq_to_double(u2_fxpt_freq_from_hilo(ntohl(src->freq_min_hi),
1298 ntohl(src->freq_min_lo)));
1300 u2_fxpt_freq_to_double(u2_fxpt_freq_from_hilo(ntohl(src->freq_max_hi),
1301 ntohl(src->freq_max_lo)));
1303 dst->gain_min = u2_fxpt_gain_to_double(ntohs(src->gain_min));
1304 dst->gain_max = u2_fxpt_gain_to_double(ntohs(src->gain_max));
1305 dst->gain_step_size = u2_fxpt_gain_to_double(ntohs(src->gain_step_size));
1309 usrp2::impl::dboard_info()
1311 op_dboard_info_cmd cmd;
1312 op_dboard_info_reply_t reply;
1314 memset(&cmd, 0, sizeof(cmd));
1315 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1316 cmd.op.opcode = OP_DBOARD_INFO;
1317 cmd.op.len = sizeof(cmd.op);
1318 cmd.op.rid = d_next_rid++;
1319 cmd.eop.opcode = OP_EOP;
1320 cmd.eop.len = sizeof(cmd.eop);
1322 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1323 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1326 bool success = (ntohx(reply.ok) == 1);
1328 fill_dboard_info(&d_tx_db_info, &reply.tx_db_info);
1329 fill_dboard_info(&d_rx_db_info, &reply.rx_db_info);
1336 usrp2::impl::sync_to_pps()
1341 memset(&cmd, 0, sizeof(cmd));
1342 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1343 cmd.op.opcode = OP_SYNC_TO_PPS;
1344 cmd.op.len = sizeof(cmd.op);
1345 cmd.op.rid = d_next_rid++;
1346 cmd.eop.opcode = OP_EOP;
1347 cmd.eop.len = sizeof(cmd.eop);
1349 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1350 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1353 return ntohx(reply.ok) == 1;
1357 usrp2::impl::sync_every_pps(bool enable)
1362 memset(&cmd, 0, sizeof(cmd));
1363 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1364 cmd.op.opcode = OP_SYNC_EVERY_PPS;
1365 cmd.op.len = sizeof(cmd.op);
1366 cmd.op.rid = d_next_rid++;
1367 cmd.op.ok = enable ? 1 : 0;
1368 cmd.eop.opcode = OP_EOP;
1369 cmd.eop.len = sizeof(cmd.eop);
1371 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1372 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1375 return ntohx(reply.ok) == 1;
1378 std::vector<uint32_t>
1379 usrp2::impl::peek32(uint32_t addr, uint32_t words)
1381 std::vector<uint32_t> result; // zero sized on error return
1382 // fprintf(stderr, "usrp2::peek: addr=%08X words=%u\n", addr, words);
1384 if (addr % 4 != 0) {
1385 fprintf(stderr, "usrp2::peek: addr (=%08X) must be 32-bit word aligned\n", addr);
1393 op_generic_t *reply;
1395 int wlen = sizeof(uint32_t);
1396 int rlen = sizeof(op_generic_t);
1397 size_t bytes = words*wlen;
1399 memset(&cmd, 0, sizeof(cmd));
1400 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1401 cmd.op.opcode = OP_PEEK;
1402 cmd.op.len = sizeof(cmd.op);
1403 cmd.op.rid = d_next_rid++;
1404 cmd.eop.opcode = OP_EOP;
1405 cmd.eop.len = sizeof(cmd.eop);
1407 cmd.op.addr = htonl(addr);
1408 cmd.op.bytes = htonl(bytes);
1410 reply = (op_generic_t *)malloc(rlen+bytes);
1411 pending_reply p(cmd.op.rid, reply, rlen+bytes);
1412 if (transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT)) {
1413 uint32_t nwords = (reply->len-rlen)/sizeof(uint32_t);
1414 uint32_t *data = (uint32_t *)(reply+rlen/wlen);
1415 for (unsigned int i = 0; i < nwords; i++)
1416 result.push_back(ntohl(data[i]));
1424 usrp2::impl::poke32(uint32_t addr, const std::vector<uint32_t> &data)
1426 if (addr % 4 != 0) {
1427 fprintf(stderr, "usrp2::poke32: addr (=%08X) must be 32-bit word aligned\n", addr);
1431 int plen = sizeof(op_poke_cmd);
1432 int wlen = sizeof(uint32_t);
1433 int max_words = (MAX_SUBPKT_LEN-plen)/wlen;
1434 int words = data.size();
1436 if (words > max_words) {
1437 fprintf(stderr, "usrp2::poke32: write size (=%u) exceeds maximum of %u words\n",
1442 //fprintf(stderr, "usrp2::poke32: addr=%08X words=%u\n", addr, words);
1450 // Allocate, clear, and initialize command packet
1451 int bytes = words*wlen;
1452 int l = plen+bytes+sizeof(*eop); // op_poke_cmd+data+eop
1453 cmd = (op_poke_cmd *)malloc(l);
1454 //fprintf(stderr, "cmd=%p l=%i\n", cmd, l);
1456 init_etf_hdrs(&cmd->h, d_addr, 0, CONTROL_CHAN, -1);
1457 cmd->op.opcode = OP_POKE;
1458 cmd->op.len = sizeof(cmd->op)+bytes;
1459 cmd->op.rid = d_next_rid++;
1460 cmd->op.addr = htonl(addr);
1462 // Copy data from vector into packet space
1463 uint32_t *dest = (uint32_t *)((uint8_t *)cmd+plen);
1464 for (int i = 0; i < words; i++) {
1465 //fprintf(stderr, "%03i@%p\n", i, dest);
1466 *dest++ = htonl(data[i]);
1469 // Write end-of-packet subpacket
1470 eop = (op_generic_t *)dest;
1471 eop->opcode = OP_EOP;
1472 eop->len = sizeof(*eop);
1473 //fprintf(stderr, "eop=%p len=%i\n", eop, eop->len);
1475 // Send command to device and retrieve reply
1478 pending_reply p(cmd->op.rid, &reply, sizeof(reply));
1479 if (transmit_cmd_and_wait(cmd, l, &p, DEF_CMD_TIMEOUT))
1480 ok = (ntohx(reply.ok) == 1);
1487 usrp2::impl::reset_db()
1492 memset(&cmd, 0, sizeof(cmd));
1493 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1494 cmd.op.opcode = OP_RESET_DB;
1495 cmd.op.len = sizeof(cmd.op);
1496 cmd.op.rid = d_next_rid++;
1497 cmd.eop.opcode = OP_EOP;
1498 cmd.eop.len = sizeof(cmd.eop);
1500 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1501 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1504 bool success = (ntohx(reply.ok) == 1);
1508 bool usrp2::impl::set_gpio_ddr(int bank, uint16_t value, uint16_t mask)
1510 if (bank != GPIO_TX_BANK && bank != GPIO_RX_BANK) {
1511 fprintf(stderr, "set_gpio_ddr: bank must be one of GPIO_RX_BANK or GPIO_TX_BANK\n");
1518 memset(&cmd, 0, sizeof(cmd));
1519 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1520 cmd.op.opcode = OP_GPIO_SET_DDR;
1521 cmd.op.len = sizeof(cmd.op);
1522 cmd.op.rid = d_next_rid++;
1523 cmd.op.bank = static_cast<uint8_t>(bank);
1524 cmd.op.value = htons(value);
1525 cmd.op.mask = htons(mask);
1526 cmd.eop.opcode = OP_EOP;
1527 cmd.eop.len = sizeof(cmd.eop);
1529 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1530 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1533 bool success = (ntohx(reply.ok) == 1);
1537 bool usrp2::impl::set_gpio_sels(int bank, std::string sels)
1539 if (bank != GPIO_TX_BANK && bank != GPIO_RX_BANK) {
1540 fprintf(stderr, "set_gpio_ddr: bank must be one of GPIO_RX_BANK or GPIO_TX_BANK\n");
1544 if (sels.size() != 16) {
1545 fprintf(stderr, "set_gpio_sels: sels must be exactly 16 bytes\n");
1549 op_gpio_set_sels_cmd cmd;
1552 memset(&cmd, 0, sizeof(cmd));
1553 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1554 cmd.op.opcode = OP_GPIO_SET_SELS;
1555 cmd.op.len = sizeof(cmd.op);
1556 cmd.op.rid = d_next_rid++;
1557 cmd.op.bank = static_cast<uint8_t>(bank);
1558 memcpy(&cmd.op.sels, sels.c_str(), 16);
1559 cmd.eop.opcode = OP_EOP;
1560 cmd.eop.len = sizeof(cmd.eop);
1562 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1563 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1566 bool success = (ntohx(reply.ok) == 1);
1570 bool usrp2::impl::write_gpio(int bank, uint16_t value, uint16_t mask)
1572 if (bank != GPIO_TX_BANK && bank != GPIO_RX_BANK) {
1573 fprintf(stderr, "set_gpio_ddr: bank must be one of GPIO_RX_BANK or GPIO_TX_BANK\n");
1580 memset(&cmd, 0, sizeof(cmd));
1581 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1582 cmd.op.opcode = OP_GPIO_WRITE;
1583 cmd.op.len = sizeof(cmd.op);
1584 cmd.op.rid = d_next_rid++;
1585 cmd.op.bank = static_cast<uint8_t>(bank);
1586 cmd.op.value = htons(value);
1587 cmd.op.mask = htons(mask);
1588 cmd.eop.opcode = OP_EOP;
1589 cmd.eop.len = sizeof(cmd.eop);
1591 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1592 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1595 bool success = (ntohx(reply.ok) == 1);
1599 bool usrp2::impl::read_gpio(int bank, uint16_t *value)
1601 if (bank != GPIO_TX_BANK && bank != GPIO_RX_BANK) {
1602 fprintf(stderr, "set_gpio_ddr: bank must be one of GPIO_RX_BANK or GPIO_TX_BANK\n");
1607 op_gpio_read_reply_t reply;
1609 memset(&cmd, 0, sizeof(cmd));
1610 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1611 cmd.op.opcode = OP_GPIO_READ;
1612 cmd.op.len = sizeof(cmd.op);
1613 cmd.op.rid = d_next_rid++;
1614 cmd.op.bank = static_cast<uint8_t>(bank);
1615 cmd.op.value = 0; // not used
1616 cmd.op.mask = 0; // not used
1617 cmd.eop.opcode = OP_EOP;
1618 cmd.eop.len = sizeof(cmd.eop);
1620 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1621 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1624 bool success = (ntohx(reply.ok) == 1);
1625 if (success && (value != NULL))
1626 *value = ntohs(reply.value);
1631 bool usrp2::impl::enable_gpio_streaming(int bank, int enable)
1633 if (bank != GPIO_RX_BANK) {
1634 fprintf(stderr, "enable_gpio_streaming: only RX streaming is currently implemented\n");
1638 if ((enable & ~0x03) != 0) {
1639 fprintf(stderr, "enable_gpio_streaming: invalid enable format\n");
1646 memset(&cmd, 0, sizeof(cmd));
1647 init_etf_hdrs(&cmd.h, d_addr, 0, CONTROL_CHAN, -1);
1648 cmd.op.opcode = OP_GPIO_STREAM;
1649 cmd.op.len = sizeof(cmd.op);
1650 cmd.op.rid = d_next_rid++;
1651 cmd.op.bank = static_cast<uint8_t>(bank);
1652 cmd.op.value = htons((uint16_t)enable);
1653 cmd.op.mask = 0; // not used
1654 cmd.eop.opcode = OP_EOP;
1655 cmd.eop.len = sizeof(cmd.eop);
1657 pending_reply p(cmd.op.rid, &reply, sizeof(reply));
1658 if (!transmit_cmd_and_wait(&cmd, sizeof(cmd), &p, DEF_CMD_TIMEOUT))
1661 bool success = (ntohx(reply.ok) == 1);
1665 } // namespace usrp2