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[gpsd-dev] [PATCH] Support UBX NAV-PVT
|
From: |
Clark Li |
|
Subject: |
[gpsd-dev] [PATCH] Support UBX NAV-PVT |
|
Date: |
Thu, 20 Jul 2017 09:15:16 +0000 |
NAV-SOL has only been retained for backwards compatibility; users are
recommended to use the UBX-NAV-PVT message in preference.
A regression test case using ublox-neo-m8n is also added.
Also fix the checking on valid flags of iTOW and fTOW and process fTOW whose
range is +-500us. Update test/dae/ublox-aek-4t.log.chk accordingly.
---
driver_ubx.c | 170 ++++++++++++++++++++++++++++++++------
driver_ubx.h | 11 +++
test/daemon/ublox-aek-4t.log.chk | 2 +-
test/daemon/ublox-neo-m8n.log | Bin 0 -> 5054 bytes
test/daemon/ublox-neo-m8n.log.chk | 120 +++++++++++++++++++++++++++
5 files changed, 279 insertions(+), 24 deletions(-) create mode 100644
test/daemon/ublox-neo-m8n.log create mode 100644
test/daemon/ublox-neo-m8n.log.chk
diff --git a/driver_ubx.c b/driver_ubx.c index 88be6c07..6236c25d 100644
--- a/driver_ubx.c
+++ b/driver_ubx.c
@@ -130,19 +130,129 @@ static gps_mask_t ubx_msg_nav_pvt(struct gps_device_t
*session, unsigned char *buf,
size_t data_len)
{
- unsigned int flags;
+ uint8_t valid;
+ uint8_t flags;
+ uint8_t navmode;
+ struct tm unpacked_date;
+ double subseconds;
+ double hacc, vacc, sacc;
+ int *status = &session->gpsdata.status;
+ int *mode = &session->newdata.mode;
gps_mask_t mask = 0;
if (data_len != 92)
- return 0;
+ return 0;
+ valid = (unsigned int)getub(buf, 11);
+ navmode = (unsigned char)getub(buf, 20);
flags = (unsigned int)getub(buf, 21);
- /* TODO: finish decoding UBX_MON_PVT
- * no need until depreacaed UBX_MON_SOL is dead
- */
+ switch (navmode)
+ {
+ case UBX_MODE_TMONLY:
+ {
+ if (*mode != MODE_NO_FIX) {
+ *mode = MODE_NO_FIX;
+ mask |= MODE_SET;
+ }
+ if (*status != STATUS_NO_FIX) {
+ *status = STATUS_NO_FIX;
+ mask |= STATUS_SET;
+ }
+ break;
+ }
+ case UBX_MODE_3D:
+ case UBX_MODE_GPSDR:
+ {
+ if (*mode != MODE_3D) {
+ *mode = MODE_3D;
+ mask |= MODE_SET;
+ }
+ if ((flags & UBX_NAV_PVT_FLAG_DGPS) == UBX_NAV_PVT_FLAG_DGPS) {
+ if (*status != STATUS_DGPS_FIX) {
+ *status = STATUS_DGPS_FIX;
+ mask |= STATUS_SET;
+ }
+ } else {
+ if (*status != STATUS_FIX) {
+ *status = STATUS_FIX;
+ mask |= STATUS_SET;
+ }
+ }
+ mask |= LATLON_SET | ALTITUDE_SET | SPEED_SET | TRACK_SET | CLEAR_IS
+ | REPORT_IS;
+ break;
+ }
+ case UBX_MODE_2D:
+ case UBX_MODE_DR: /* consider this too as 2D */
+ {
+ if (*mode != MODE_2D) {
+ *mode = MODE_2D;
+ mask |= MODE_SET;
+ };
+ if (*status != STATUS_FIX) {
+ *status = STATUS_FIX;
+ mask |= STATUS_SET;
+ }
+ mask |= LATLON_SET | SPEED_SET;
+ break;
+ }
+ default:
+ {
+ if (*mode != MODE_NO_FIX) {
+ *mode = MODE_NO_FIX;
+ mask |= MODE_SET;
+ };
+ if (*status != STATUS_NO_FIX) {
+ *status = STATUS_NO_FIX;
+ mask |= STATUS_SET;
+ }
+ break;
+ }
+ }
+
+ if ((valid & UBX_NAV_PVT_VALID_DATE_TIME) == UBX_NAV_PVT_VALID_DATE_TIME) {
+ unpacked_date.tm_year = (uint16_t)getleu16(buf, 4) - 1900;
+ unpacked_date.tm_mon = (uint8_t)getub(buf, 6) - 1;
+ unpacked_date.tm_mday = (uint8_t)getub(buf, 7);
+ unpacked_date.tm_hour = (uint8_t)getub(buf, 8);
+ unpacked_date.tm_min = (uint8_t)getub(buf, 9);
+ unpacked_date.tm_sec = (uint8_t)getub(buf, 10);
+ unpacked_date.tm_isdst = 0;
+ unpacked_date.tm_wday = 0;
+ unpacked_date.tm_yday = 0;
+ subseconds = 1e-9 * (int32_t)getles32(buf, 16);
+ session->newdata.time = \
+ (timestamp_t)mkgmtime(&unpacked_date) + subseconds;
+ mask |= TIME_SET | NTPTIME_IS;
+ }
+
+ session->newdata.longitude = 1e-7 * (int32_t)getles32(buf, 24);
+ session->newdata.latitude = 1e-7 * (int32_t)getles32(buf, 28);
+ session->newdata.altitude = 1e-3 * (int32_t)getles32(buf, 32);
+ session->newdata.speed = 1e-3 * (int32_t)getles32(buf, 60);
+ session->newdata.track = 1e-5 * (int32_t)getles32(buf, 64);
+ hacc = (double)(getles32(buf, 40) / 1000.0);
+ vacc = (double)(getles32(buf, 44) / 1000.0);
+ sacc = (double)(getles32(buf, 48) / 1000.0);
+ // epx ^ 2 + epy ^ 2 = hacc ^ 2
+ session->newdata.epx = session->newdata.epy = 0.707 * hacc;
+ session->newdata.epv = vacc;
+ session->newdata.eps = sacc;
+ mask |= HERR_SET | VERR_SET | SPEEDERR_SET;
gpsd_log(&session->context->errout, LOG_DATA,
- "NAV-PVT: flags:%02x\n", flags);
+ "NAV_PVT: flags=%02x time=%.2f lat=%.2f lon=%.2f alt=%.2f track=%.2f
speed=%.2f climb=%.2f mode=%d status=%d used=%d\n",
+ flags,
+ session->newdata.time,
+ session->newdata.latitude,
+ session->newdata.longitude,
+ session->newdata.altitude,
+ session->newdata.track,
+ session->newdata.speed,
+ session->newdata.climb,
+ session->newdata.mode,
+ session->gpsdata.status,
+ session->gpsdata.satellites_used);
return mask;
}
@@ -166,10 +276,12 @@ ubx_msg_nav_sol(struct gps_device_t *session, unsigned
char *buf,
#define DATE_VALID (UBX_SOL_VALID_WEEK | UBX_SOL_VALID_TIME)
if ((flags & DATE_VALID) == DATE_VALID) {
unsigned short gw;
- unsigned int tow;
- tow = (unsigned int)getleu32(buf, 0);
+ unsigned int iTOW;
+ int fTOW;
+ iTOW = (unsigned int)getleu32(buf, 0);
+ fTOW = (int)getles32(buf, 4);
gw = (unsigned short)getles16(buf, 8);
- session->newdata.time = gpsd_gpstime_resolve(session, gw, tow / 1000.0);
+ session->newdata.time = gpsd_gpstime_resolve(session, gw, (iTOW *
+1e-3) + (fTOW * 1e-9));
mask |= TIME_SET | NTPTIME_IS;
}
#undef DATE_VALID
@@ -292,24 +404,36 @@ static gps_mask_t
ubx_msg_nav_timegps(struct gps_device_t *session, unsigned char *buf,
size_t data_len)
{
- unsigned int gw, tow, flags;
+ unsigned int gw, iTOW, flags;
+ int fTOW;
+ gps_mask_t mask = 0;
if (data_len != 16)
- return 0;
+ return 0;
- tow = (unsigned int)getleu32(buf, 0);
- gw = (unsigned int)getles16(buf, 8);
flags = (unsigned int)getub(buf, 11);
- if ((flags & 0x7) != 0)
- session->context->leap_seconds = (int)getub(buf, 10);
- session->newdata.time = gpsd_gpstime_resolve(session,
- (unsigned short int)gw,
- (double)tow / 1000.0);
+ // Valid leap seconds
+ if ((flags & UBX_TIMEGPS_VALID_LEAP_SECOND) ==
UBX_TIMEGPS_VALID_LEAP_SECOND)
+ session->context->leap_seconds = (int)getub(buf, 10);
+ // Valid GPS time of week and week number #define VALID_TIME
+(UBX_TIMEGPS_VALID_TIME | UBX_TIMEGPS_VALID_WEEK)
+ if ((flags & VALID_TIME) == VALID_TIME) #undef VALID_TIME
+ {
+ iTOW = (unsigned int)getleu32(buf, 0);
+ fTOW = (int)getles32(buf, 4);
+ gw = (unsigned int)getles16(buf, 8);
+ session->newdata.time =
+ gpsd_gpstime_resolve(session,
+ (unsigned short int)gw,
+ ((double)iTOW * 1e-3) + ((double)fTOW * 1e-9));
+ mask |= (TIME_SET | NTPTIME_IS);
+ }
gpsd_log(&session->context->errout, LOG_DATA,
- "TIMEGPS: time=%.2f leap=%d, mask={TIME}\n",
- session->newdata.time, session->context->leap_seconds);
- return TIME_SET | NTPTIME_IS;
+ "TIMEGPS: time=%.2f mask={TIME}\n",
+ session->newdata.time);
+ return mask;
}
/**
@@ -486,8 +610,8 @@ gps_mask_t ubx_parse(struct gps_device_t * session,
unsigned char *buf,
break;
case UBX_NAV_PVT:
gpsd_log(&session->context->errout, LOG_PROG, "UBX_NAV_PVT\n");
- mask = ubx_msg_nav_pvt(session, &buf[UBX_PREFIX_LEN], data_len);
- break;
+ mask = ubx_msg_nav_pvt(session, &buf[UBX_PREFIX_LEN], data_len)
+ | (CLEAR_IS | REPORT_IS);
case UBX_NAV_POSUTM:
gpsd_log(&session->context->errout, LOG_DATA, "UBX_NAV_POSUTM\n");
break;
diff --git a/driver_ubx.h b/driver_ubx.h index c23efdf7..99ef9b98 100644
--- a/driver_ubx.h
+++ b/driver_ubx.h
@@ -102,6 +102,10 @@ typedef enum {
#define UBX_SOL_VALID_WEEK 0x04
#define UBX_SOL_VALID_TIME 0x08
+#define UBX_TIMEGPS_VALID_TIME 0x01
+#define UBX_TIMEGPS_VALID_WEEK 0x02
+#define UBX_TIMEGPS_VALID_LEAP_SECOND 0x04
+
/* from UBX_NAV_SVINFO */
#define UBX_SAT_USED 0x01
#define UBX_SAT_DGPS 0x02
@@ -118,4 +122,11 @@ typedef enum {
#define UBX_SIG_CDCRLK2 6
#define UBX_SIG_NAVMSG 7
+#define UBX_NAV_PVT_VALID_DATE 0x01
+#define UBX_NAV_PVT_VALID_TIME 0x02
+#define UBX_NAV_PVT_VALID_DATE_TIME (UBX_NAV_PVT_VALID_DATE |
+UBX_NAV_PVT_VALID_TIME)
+
+#define UBX_NAV_PVT_FLAG_GPS_FIX_OK 0x01
+#define UBX_NAV_PVT_FLAG_DGPS 0x02
+
#endif /* _GPSD_UBX_H_ */
diff --git a/test/daemon/ublox-aek-4t.log.chk b/test/daemon/ublox-aek-4t.log.chk
index 45680ea6..31acd979 100644
--- a/test/daemon/ublox-aek-4t.log.chk
+++ b/test/daemon/ublox-aek-4t.log.chk
@@ -26,4 +26,4 @@ $GPZDA,231127.00,23,12,2007,00,00*65
$GPGGA,231126,2037.7569,N,08704.0845,W,2,07,1.67,75.75,M,-13.865,M,,*4C
$GPRMC,231126,A,2037.7569,N,08704.0845,W,0.0000,0.000,231207,,*36
$GPGSA,A,3,15,2,30,5,12,18,135,,,,,,2.6,1.7,2.0*0F
-{"class":"TPV","status":2,"mode":3,"time":"2007-12-23T23:11:26.999Z","ept":0.005,"lat":20.629281718,"lon":-87.068075424,"alt":75.754,"epx":2.973,"epy":6.138,"epv":11.443,"track":0.0000,"speed":0.000,"climb":0.000,"eps":0.17,"epc":22.89}
+{"class":"TPV","status":2,"mode":3,"time":"2007-12-23T23:11:26.999Z","e
+pt":0.005,"lat":20.629281718,"lon":-87.068075424,"alt":75.754,"epx":2.9
+73,"epy":6.138,"epv":11.443,"track":0.0000,"speed":0.000,"climb":0.000,
+"eps":0.17,"epc":22.88}
diff --git a/test/daemon/ublox-neo-m8n.log b/test/daemon/ublox-neo-m8n.log new
file mode 100644 index
0000000000000000000000000000000000000000..28f7c1210cefc87390aced8960eaff133213e9f4
GIT binary patch
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diff --git a/test/daemon/ublox-neo-m8n.log.chk
b/test/daemon/ublox-neo-m8n.log.chk
new file mode 100644
index 00000000..b229a3aa
--- /dev/null
+++ b/test/daemon/ublox-neo-m8n.log.chk
@@ -0,0 +1,120 @@
+$GPZDA,085000.80,19,07,2017,00,00*68
+$GPGGA,085000,3454.3736,S,13836.4872,E,2,00,,25.42,M,,,*00
+$GPRMC,085000,A,3454.3736,S,13836.4872,E,0.0583,31.472,190717,,*08
+$GPGSA,A,3,,,,,,,,,,,,,,,*1C
+{"class":"TPV","status":2,"mode":3,"time":"2017-07-19T08:50:00.800Z","e
+pt":0.005,"lat":-34.906226300,"lon":138.608119700,"alt":25.424,"epx":0.
+800,"epy":0.800,"epv":1.602,"track":31.4718,"speed":0.030,"eps":-0.01}
+$GPZDA,085001.00,19,07,2017,00,00*61
+$GPGGA,085000,3454.3736,S,13836.4872,E,2,00,,25.38,M,,,*0D
+$GPRMC,085000,A,3454.3736,S,13836.4872,E,0.0311,31.472,190717,,*05
+$GPGSA,A,3,,,,,,,,,,,,,,,*1C
+{"class":"TPV","status":2,"mode":3,"time":"2017-07-19T08:50:00.000Z","e
+pt":0.005,"lat":-34.906226600,"lon":138.608119900,"alt":25.378,"epx":0.
+801,"epy":0.801,"epv":1.603,"track":31.4718,"speed":0.016,"climb":-0.23
+0,"eps":0.02,"epc":16.02}
+$GPZDA,085001.20,19,07,2017,00,00*63
+$GPGGA,085001,3454.3736,S,13836.4872,E,2,00,,25.31,M,,,*05
+$GPRMC,085001,A,3454.3736,S,13836.4872,E,0.0311,31.472,190717,,*04
+$GPGSA,A,3,,,,,,,,,,,,,,,*1C
+{"class":"TPV","status":2,"mode":3,"time":"2017-07-19T08:50:01.200Z","e
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+0,"eps":-0.01,"epc":16.06}
+$GPZDA,085001.40,19,07,2017,00,00*65
+$GPGGA,085001,3454.3736,S,13836.4872,E,2,00,,25.26,M,,,*03
+$GPRMC,085001,A,3454.3736,S,13836.4872,E,0.0583,31.472,190717,,*09
+$GPGSA,A,3,,,,,,,,,,,,,,,*1C
+{"class":"TPV","status":2,"mode":3,"time":"2017-07-19T08:50:01.400Z","e
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+0,"eps":0.02,"epc":16.13}
+$GPZDA,085001.60,19,07,2017,00,00*67
+$GPGGA,085001,3454.3736,S,13836.4872,E,2,00,,25.19,M,,,*0F
+$GPRMC,085001,A,3454.3736,S,13836.4872,E,0.0408,31.472,190717,,*0B
+$GPGSA,A,3,,,,,,,,,,,,,,,*1C
+{"class":"TPV","status":2,"mode":3,"time":"2017-07-19T08:50:01.600Z","e
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+809,"epy":0.809,"epv":1.619,"track":31.4718,"speed":0.021,"climb":-0.32
+0,"eps":-0.02,"epc":16.17}
+$GPZDA,085001.80,19,07,2017,00,00*69
+$GPGGA,085001,3454.3737,S,13836.4872,E,2,00,,25.14,M,,,*03
+$GPRMC,085001,A,3454.3737,S,13836.4872,E,0.0253,31.472,190717,,*02
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--
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- [gpsd-dev] [PATCH] Support UBX NAV-PVT,
Clark Li <=