[gpsd-dev] [PATCH 2/6] Add new NMEA talker ID (WI, HC and TI)

[chris]

From: Christian Gagneraud <address@hidden>

WI: Weather instrument
HC: Heading, magnetic compass
TI: Turn rate indicator

Asssociated NMEA sentences:
WIMDA, WIMWD, WIMWV, WIVWR, WIVWT, TIROT, HCHDG, HCHDT
---
 packet.c        |   27 +++++++++++++++++++++++++++
 packet_states.h |    3 +++
 2 files changed, 30 insertions(+), 0 deletions(-)

diff --git a/packet.c b/packet.c
index 938549d..b025cc8 100644
--- a/packet.c
+++ b/packet.c
@@ -95,6 +95,9 @@ PERMISSIONS
  *      GN -- Mixed GPS and GLONASS data, according to IEIC 61162-1
  *      II -- Integrated Instrumentation (Raytheon's SeaTalk system).
  *      IN -- Integrated Navigation (Garmin uses this).
+ *      WI -- Weather instrument (Airmar PB200, Radio Ocean ROWIND, Vaisala 
WXT520).
+ *      HC -- Heading/compass (Airmar PB200).
+ *      TI -- Turn indicator (Airmar PB200).
  *      EC -- Electronic Chart Display & Information System (ECDIS)
  *      SD -- Depth Sounder
  *      P  -- Vendor-specific sentence
@@ -324,6 +327,12 @@ static void nextstate(struct gps_packet_t *lexer, unsigned 
char c)
            lexer->state = NMEA_VENDOR_LEAD;
        else if (c == 'I')      /* Seatalk */
            lexer->state = SEATALK_LEAD_1;
+       else if (c == 'W')      /* Weather instrument */
+           lexer->state = WEATHER_LEAD_1;
+       else if (c == 'H')      /* Heading/compass */
+           lexer->state = HEADCOMP_LEAD_1;
+       else if (c == 'T')      /* Turn indicator */
+           lexer->state = TURN_LEAD_1;
        else if (c == 'A')      /* SiRF Ack */
            lexer->state = SIRF_ACK_LEAD_1;
        else if (c == 'E')      /* ECDIS */
@@ -500,6 +509,24 @@ static void nextstate(struct gps_packet_t *lexer, unsigned 
char c)
        else
            lexer->state = GROUND_STATE;
        break;
+    case WEATHER_LEAD_1:
+       if (c == 'I')           /* Weather instrument leader accepted */
+           lexer->state = NMEA_LEADER_END;
+       else
+           lexer->state = GROUND_STATE;
+       break;
+    case HEADCOMP_LEAD_1:
+       if (c == 'C')           /* Heading/compass leader accepted */
+           lexer->state = NMEA_LEADER_END;
+       else
+           lexer->state = GROUND_STATE;
+       break;
+    case TURN_LEAD_1:
+       if (c == 'I')           /* Turn indicator leader accepted */
+           lexer->state = NMEA_LEADER_END;
+       else
+           lexer->state = GROUND_STATE;
+       break;
     case ECDIS_LEAD_1:
        if (c == 'C')           /* ECDIS leader accepted */
            lexer->state = NMEA_LEADER_END;
diff --git a/packet_states.h b/packet_states.h
index 79a134e..454f815 100644
--- a/packet_states.h
+++ b/packet_states.h
@@ -25,6 +25,9 @@
    AIS_LEAD_2,         /* seen I of possible marine AIS message */
 
    SEATALK_LEAD_1,     /* SeaTalk/Garmin packet leader 'I' */
+   WEATHER_LEAD_1,     /* Weather instrument packet leader 'W' */
+   HEADCOMP_LEAD_1,    /* Heading/compass packet leader 'H' */
+   TURN_LEAD_1,                /* Turn indicator packet leader 'T' */
    ECDIS_LEAD_1,       /* ECDIS packet leader 'E' */
    SOUNDER_LEAD_1,     /* Depth sounder packet leader 'S' */
 #endif /* NMEA_ENABLE */
-- 
1.7.0.4