openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <sched.h>
#include <sys/time.h>
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/time.h>
#include <assert.h>
#include <math.h>
#include <ctime>
#include <chrono>
#include <map>
#include <vector>
#include <zmq.h>
#include <capnp/serialize.h>
#include "cereal/gen/cpp/log.capnp.h"
#include "common/params.h"
#include "common/swaglog.h"
#include "common/timing.h"
#include "ublox_msg.h"
volatile int do_exit = 0; // Flag for process exit on signal
void set_do_exit(int sig) {
do_exit = 1;
}
using namespace ublox;
int ubloxd_main(poll_ubloxraw_msg_func poll_func, send_gps_event_func send_func) {
LOGW("starting ubloxd");
signal(SIGINT, (sighandler_t) set_do_exit);
signal(SIGTERM, (sighandler_t) set_do_exit);
UbloxMsgParser parser;
void *context = zmq_ctx_new();
void *gpsLocationExternal = zmq_socket(context, ZMQ_PUB);
zmq_bind(gpsLocationExternal, "tcp://*:8032");
void *ubloxGnss = zmq_socket(context, ZMQ_PUB);
zmq_bind(ubloxGnss, "tcp://*:8033");
// ubloxRaw = 8042
void *subscriber = zmq_socket(context, ZMQ_SUB);
zmq_setsockopt(subscriber, ZMQ_SUBSCRIBE, "", 0);
zmq_connect(subscriber, "tcp://127.0.0.1:8042");
while (!do_exit) {
zmq_msg_t msg;
zmq_msg_init(&msg);
int err = poll_func(gpsLocationExternal, ubloxGnss, subscriber, &msg);
if(err < 0) {
LOGE_100("zmq_poll error %s in %s", strerror(errno ), __FUNCTION__);
break;
} else if(err == 0) {
continue;
}
// format for board, make copy due to alignment issues, will be freed on out of scope
auto amsg = kj::heapArray<capnp::word>((zmq_msg_size(&msg) / sizeof(capnp::word)) + 1);
memcpy(amsg.begin(), zmq_msg_data(&msg), zmq_msg_size(&msg));
capnp::FlatArrayMessageReader cmsg(amsg);
cereal::Event::Reader event = cmsg.getRoot<cereal::Event>();
const uint8_t *data = event.getUbloxRaw().begin();
size_t len = event.getUbloxRaw().size();
size_t bytes_consumed = 0;
while(bytes_consumed < len && !do_exit) {
size_t bytes_consumed_this_time = 0U;
if(parser.add_data(data + bytes_consumed, (uint32_t)(len - bytes_consumed), bytes_consumed_this_time)) {
// New message available
if(parser.msg_class() == CLASS_NAV) {
if(parser.msg_id() == MSG_NAV_PVT) {
LOGD("MSG_NAV_PVT");
auto words = parser.gen_solution();
if(words.size() > 0) {
auto bytes = words.asBytes();
send_func(parser.msg_class(), parser.msg_id(), gpsLocationExternal, bytes.begin(), bytes.size(), 0);
}
} else
LOGW("Unknown nav msg id: 0x%02X", parser.msg_id());
} else if(parser.msg_class() == CLASS_RXM) {
if(parser.msg_id() == MSG_RXM_RAW) {
LOGD("MSG_RXM_RAW");
auto words = parser.gen_raw();
if(words.size() > 0) {
auto bytes = words.asBytes();
send_func(parser.msg_class(), parser.msg_id(), ubloxGnss, bytes.begin(), bytes.size(), 0);
}
} else if(parser.msg_id() == MSG_RXM_SFRBX) {
LOGD("MSG_RXM_SFRBX");
auto words = parser.gen_nav_data();
if(words.size() > 0) {
auto bytes = words.asBytes();
send_func(parser.msg_class(), parser.msg_id(), ubloxGnss, bytes.begin(), bytes.size(), 0);
}
} else
LOGW("Unknown rxm msg id: 0x%02X", parser.msg_id());
} else
LOGW("Unknown msg class: 0x%02X", parser.msg_class());
parser.reset();
}
bytes_consumed += bytes_consumed_this_time;
}
zmq_msg_close(&msg);
}
zmq_close(subscriber);
zmq_close(gpsLocationExternal);
zmq_close(ubloxGnss);
zmq_ctx_destroy(context);
return 0;
}