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-rw-r--r--host/lib/usrp/usrp2/gps_ctrl.cpp65
-rw-r--r--host/lib/usrp/usrp2/mboard_impl.cpp4
-rw-r--r--host/lib/usrp/usrp2/usrp2_iface.cpp29
-rw-r--r--host/lib/usrp/usrp2/usrp2_iface.hpp2
4 files changed, 62 insertions, 38 deletions
diff --git a/host/lib/usrp/usrp2/gps_ctrl.cpp b/host/lib/usrp/usrp2/gps_ctrl.cpp
index 7152800aa..20d670f81 100644
--- a/host/lib/usrp/usrp2/gps_ctrl.cpp
+++ b/host/lib/usrp/usrp2/gps_ctrl.cpp
@@ -20,10 +20,14 @@
#include <boost/cstdint.hpp>
#include <string>
#include <boost/date_time/posix_time/posix_time.hpp>
+#include <boost/thread.hpp>
+#include <boost/algorithm/string/trim.hpp>
+#include <boost/tokenizer.hpp>
using namespace uhd;
using namespace boost::gregorian;
using namespace boost::posix_time;
+using namespace boost::algorithm;
/*!
* A usrp2 GPS control for Jackson Labs devices
@@ -42,9 +46,10 @@ public:
//TODO: try multiple baud rates (many GPS's are set up for 4800bps, you're fixed at 115200bps 8N1 right now)
//you have to poke registers in order to set baud rate, there's no dude/bro interface for it
+ _iface->read_uart(GPS_UART); //flush it out
_iface->write_uart(GPS_UART, "HAAAY GUYYYYS\n");
try {
- reply = _iface->read_uart(GPS_UART, 20);
+ reply = _iface->read_uart(GPS_UART);
//std::cerr << "Got reply from GPS: " << reply.c_str() << " with length = " << reply.length() << std::endl;
} catch (std::runtime_error err) {
if(err.what() != std::string("usrp2 no control response")) throw; //sorry can't cope with that
@@ -53,7 +58,7 @@ public:
}
}
- if(reply == "Command Error") gps_type = GPS_TYPE_JACKSON_LABS;
+ if(trim_right_copy(reply) == "Command Error") gps_type = GPS_TYPE_JACKSON_LABS;
else gps_type = GPS_TYPE_NONE; //we'll add NMEA support later
switch(gps_type) {
@@ -61,12 +66,18 @@ public:
std::cerr << "Found a Jackson Labs GPS" << std::endl;
//issue some setup stuff so it quits spewing data out when not asked to
//none of these should issue replies so we don't bother looking for it
- _iface->write_uart(GPS_UART, "SYST:COMM:SER:");
- _iface->write_uart(GPS_UART, "ECHO OFF\n"); //we split lines before 20 chars right now -- TODO: fix driver to split writes/reads for you
- _iface->write_uart(GPS_UART, "SYST:COMM:SER:");
- _iface->write_uart(GPS_UART, "PRO OFF\n");
+ //we have to sleep between commands because the JL device, despite not acking, takes considerable time to process each command.
+ boost::this_thread::sleep(boost::posix_time::milliseconds(200));
+ _iface->write_uart(GPS_UART, "SYST:COMM:SER:ECHO OFF\n");
+ boost::this_thread::sleep(boost::posix_time::milliseconds(200));
+ _iface->write_uart(GPS_UART, "SYST:COMM:SER:PRO OFF\n");
+ boost::this_thread::sleep(boost::posix_time::milliseconds(200));
_iface->write_uart(GPS_UART, "GPS:GPGGA 0\n");
+ boost::this_thread::sleep(boost::posix_time::milliseconds(200));
_iface->write_uart(GPS_UART, "GPS:GGAST 0\n");
+ boost::this_thread::sleep(boost::posix_time::milliseconds(200));
+ _iface->write_uart(GPS_UART, "GPS:GPRMC 1\n");
+ boost::this_thread::sleep(boost::posix_time::milliseconds(200));
break;
case GPS_TYPE_GENERIC_NMEA:
@@ -84,13 +95,27 @@ public:
ptime get_time(void) {
std::string reply;
ptime now;
+ boost::tokenizer<boost::escaped_list_separator<char> > tok(reply);
+ std::vector<std::string> toked;
switch(gps_type) {
- case GPS_TYPE_JACKSON_LABS:
- _iface->write_uart(GPS_UART, "PTIME:TIME\n");
- reply = _iface->read_uart(GPS_UART, 20);
- now = ptime(get_date(), duration_from_string(reply));
- break;
+ case GPS_TYPE_JACKSON_LABS: //deprecated in favor of a single NMEA parser
case GPS_TYPE_GENERIC_NMEA:
+ while(reply.length() == 0) reply = _iface->read_uart(GPS_UART); //loop until we hear something
+ tok.assign(reply);
+ toked.assign(tok.begin(), tok.end());
+
+ UHD_ASSERT_THROW(toked.size() == 11); //if it's not we got something weird in there
+
+ now = ptime( date(
+ greg_year(boost::lexical_cast<int>(toked[8].substr(4, 2)) + 2000), //just trust me on this one
+ greg_month(boost::lexical_cast<int>(toked[8].substr(2, 2))),
+ greg_day(boost::lexical_cast<int>(toked[8].substr(0, 2)))
+ ),
+ hours( boost::lexical_cast<int>(toked[1].substr(0, 2)))
+ + minutes(boost::lexical_cast<int>(toked[1].substr(2, 2)))
+ + seconds(boost::lexical_cast<int>(toked[1].substr(4, 2)))
+ );
+ break;
case GPS_TYPE_NONE:
default:
throw std::runtime_error("get_time(): Unsupported GPS or no GPS detected\n");
@@ -99,24 +124,6 @@ public:
return now;
}
- date get_date(void) {
- std::string reply;
- date today;
- switch(gps_type) {
- case GPS_TYPE_JACKSON_LABS:
- _iface->write_uart(GPS_UART, "PTIME:DATE\n");
- reply = _iface->read_uart(GPS_UART, 20);
- today = from_string(reply);
- break;
- case GPS_TYPE_GENERIC_NMEA:
- case GPS_TYPE_NONE:
- default:
- throw std::runtime_error("get_date(): Unsupported GPS or no GPS detected\n");
- break;
- }
- return today;
- }
-
bool gps_detected(void) {
return (gps_type != GPS_TYPE_NONE);
}
diff --git a/host/lib/usrp/usrp2/mboard_impl.cpp b/host/lib/usrp/usrp2/mboard_impl.cpp
index ed6398405..6c4234641 100644
--- a/host/lib/usrp/usrp2/mboard_impl.cpp
+++ b/host/lib/usrp/usrp2/mboard_impl.cpp
@@ -26,9 +26,11 @@
#include <boost/bind.hpp>
#include <boost/asio/ip/address_v4.hpp>
#include <iostream>
+#include <boost/date_time/posix_time/posix_time.hpp>
using namespace uhd;
using namespace uhd::usrp;
+using namespace boost::posix_time;
/***********************************************************************
* Structors
@@ -57,6 +59,8 @@ usrp2_mboard_impl::usrp2_mboard_impl(
_serdes_ctrl = usrp2_serdes_ctrl::make(_iface);
_gps_ctrl = usrp2_gps_ctrl::make(_iface);
+ if(_gps_ctrl->gps_detected()) std::cout << "GPS time: " << _gps_ctrl->get_time() << std::endl;
+
//TODO move to dsp impl...
//load the allowed decim/interp rates
//_USRP2_RATES = range(4, 128+1, 1) + range(130, 256+1, 2) + range(260, 512+1, 4)
diff --git a/host/lib/usrp/usrp2/usrp2_iface.cpp b/host/lib/usrp/usrp2/usrp2_iface.cpp
index f4d354204..0771c4945 100644
--- a/host/lib/usrp/usrp2/usrp2_iface.cpp
+++ b/host/lib/usrp/usrp2/usrp2_iface.cpp
@@ -24,6 +24,7 @@
#include <boost/asio.hpp> //used for htonl and ntohl
#include <boost/assign/list_of.hpp>
#include <boost/format.hpp>
+#include <boost/tokenizer.hpp>
#include <stdexcept>
#include <algorithm>
@@ -176,40 +177,52 @@ public:
* UART
**********************************************************************/
void write_uart(boost::uint8_t dev, const std::string &buf){
+ //first tokenize the string into 20-byte substrings
+ boost::offset_separator f(20, 1, true, true);
+ boost::tokenizer<boost::offset_separator> tok(buf, f);
+ std::vector<std::string> queue(tok.begin(), tok.end());
+
+ BOOST_FOREACH(std::string item, queue) {
//setup the out data
usrp2_ctrl_data_t out_data;
out_data.id = htonl(USRP2_CTRL_ID_HEY_WRITE_THIS_UART_FOR_ME_BRO);
out_data.data.uart_args.dev = dev;
- out_data.data.uart_args.bytes = buf.size();
+ out_data.data.uart_args.bytes = item.size();
//limitation of uart transaction size
- UHD_ASSERT_THROW(buf.size() <= sizeof(out_data.data.uart_args.data));
+ UHD_ASSERT_THROW(item.size() <= sizeof(out_data.data.uart_args.data));
//copy in the data
- std::copy(buf.begin(), buf.end(), out_data.data.uart_args.data);
+ std::copy(item.begin(), item.end(), out_data.data.uart_args.data);
//send and recv
usrp2_ctrl_data_t in_data = this->ctrl_send_and_recv(out_data);
UHD_ASSERT_THROW(ntohl(in_data.id) == USRP2_CTRL_ID_MAN_I_TOTALLY_WROTE_THAT_UART_DUDE);
+ }
}
- std::string read_uart(boost::uint8_t dev, size_t num_bytes){
+ std::string read_uart(boost::uint8_t dev){
+ int readlen = 20;
+ std::string result;
+ while(readlen == 20) { //while we keep receiving full packets
//setup the out data
usrp2_ctrl_data_t out_data;
out_data.id = htonl(USRP2_CTRL_ID_SO_LIKE_CAN_YOU_READ_THIS_UART_BRO);
out_data.data.uart_args.dev = dev;
- out_data.data.uart_args.bytes = num_bytes;
+ out_data.data.uart_args.bytes = 20;
//limitation of uart transaction size
- UHD_ASSERT_THROW(num_bytes <= sizeof(out_data.data.uart_args.data));
+ //UHD_ASSERT_THROW(num_bytes <= sizeof(out_data.data.uart_args.data));
//send and recv
usrp2_ctrl_data_t in_data = this->ctrl_send_and_recv(out_data);
UHD_ASSERT_THROW(ntohl(in_data.id) == USRP2_CTRL_ID_I_HELLA_READ_THAT_UART_DUDE);
+ readlen = in_data.data.uart_args.bytes;
//copy out the data
- std::string result((const char *)in_data.data.uart_args.data, (size_t)in_data.data.uart_args.bytes);
- return result;
+ result += std::string((const char *)in_data.data.uart_args.data, (size_t)readlen);
+ }
+ return result;
}
/***********************************************************************
diff --git a/host/lib/usrp/usrp2/usrp2_iface.hpp b/host/lib/usrp/usrp2/usrp2_iface.hpp
index cb247f074..55fbfa7e4 100644
--- a/host/lib/usrp/usrp2/usrp2_iface.hpp
+++ b/host/lib/usrp/usrp2/usrp2_iface.hpp
@@ -106,7 +106,7 @@ public:
virtual void write_uart(boost::uint8_t dev, const std::string &buf) = 0;
- virtual std::string read_uart(boost::uint8_t dev, size_t num_bytes) = 0;
+ virtual std::string read_uart(boost::uint8_t dev) = 0;
/*!
* Set the hardware revision number. Also selects the proper register set for the device.
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-31 04:24:20 +0000