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GROUND_STATE, /* we don't know what packet type to expect */
#ifdef NMEA_ENABLE
NMEA_DOLLAR, /* we've seen first character of NMEA leader */
NMEA_PUB_LEAD, /* seen second character of NMEA G leader */
NMEA_LEADER_END, /* seen end char of NMEA leader, in body */
NMEA_CR, /* seen terminating \r of NMEA packet */
NMEA_RECOGNIZED, /* saw trailing \n of NMEA packet */
SIRF_ACK_LEAD_1, /* seen A of possible SiRF Ack */
SIRF_ACK_LEAD_2, /* seen c of possible SiRF Ack */
SEATALK_LEAD_1, /* SeaTalk/Garmin packet leader 'I' */
#endif /* NMEA_ENABLE */
DLE_LEADER, /* we've seen the TSIP/EverMore leader (DLE) */
#ifdef TRIPMATE_ENABLE
ASTRAL_1, /* ASTRAL leader A */
ASTRAL_2, /* ASTRAL leader S */
ASTRAL_3, /* ASTRAL leader T */
ASTRAL_4, /* ASTRAL leader R */
ASTRAL_5, /* ASTRAL leader A */
#endif /* TRIPMATE_ENABLE */
#ifdef EARTHMATE_ENABLE
EARTHA_1, /* EARTHA leader E */
EARTHA_2, /* EARTHA leader A */
EARTHA_3, /* EARTHA leader R */
EARTHA_4, /* EARTHA leader T */
EARTHA_5, /* EARTHA leader H */
#endif /* EARTHMATE_ENABLE */
#ifdef SIRFII_ENABLE
SIRF_LEADER_1, /* we've seen first character of SiRF leader */
SIRF_LEADER_2, /* seen second character of SiRF leader */
SIRF_LENGTH_1, /* seen first byte of SiRF length */
SIRF_PAYLOAD, /* we're in a SiRF payload part */
SIRF_DELIVERED, /* saw last byte of SiRF payload/checksum */
SIRF_TRAILER_1, /* saw first byte of SiRF trailer */
SIRF_RECOGNIZED, /* saw second byte of SiRF trailer */
#endif /* SIRFII_ENABLE */
#ifdef ZODIAC_ENABLE
ZODIAC_EXPECTED, /* expecting Zodiac packet */
ZODIAC_LEADER_1, /* saw leading 0xff */
ZODIAC_LEADER_2, /* saw leading 0x81 */
ZODIAC_ID_1, /* saw first byte of ID */
ZODIAC_ID_2, /* saw second byte of ID */
ZODIAC_LENGTH_1, /* saw first byte of Zodiac packet length */
ZODIAC_LENGTH_2, /* saw second byte of Zodiac packet length */
ZODIAC_FLAGS_1, /* saw first byte of FLAGS */
ZODIAC_FLAGS_2, /* saw second byte of FLAGS */
ZODIAC_HSUM_1, /* saw first byte of Header sum */
ZODIAC_PAYLOAD, /* we're in a Zodiac payload */
ZODIAC_RECOGNIZED, /* found end of the Zodiac packet */
#endif /* ZODIAC_ENABLE */
#ifdef EVERMORE_ENABLE
EVERMORE_LEADER_1, /* a DLE after having seen EverMore data */
EVERMORE_LEADER_2, /* seen opening STX of EverMore packet */
EVERMORE_PAYLOAD, /* in payload part of EverMore packet */
EVERMORE_PAYLOAD_DLE,/* DLE in payload part of EverMore packet */
EVERMORE_RECOGNIZED, /* found end of EverMore packet */
#endif /* EVERMORE_ENABLE */
#ifdef ITALK_ENABLE
ITALK_LEADER_1, /* saw leading < of iTalk packet */
ITALK_LEADER_2, /* saw leading * of iTalk packet */
ITALK_LENGTH_1, /* saw MSB of packet length */
ITALK_LENGTH_2, /* saw LSB of packet length */
ITALK_DELIVERED, /* seen end of payload */
ITALK_TRAILER_1, /* saw iTalk trailer byte */
ITALK_RECOGNIZED, /* found end of the iTalk packet */
#endif /* ITALK_ENABLE */
/*
* Packet formats without checksums start here. We list them last so
* that if a format with a conflicting structure *and* a checksum can
* be recognized, that will be preferred.
*/
#ifdef TSIP_ENABLE
TSIP_LEADER, /* a DLE after having seen TSIP data */
TSIP_PAYLOAD, /* we're in TSIP payload */
TSIP_DLE, /* we've seen a DLE in TSIP payload */
TSIP_RECOGNIZED, /* found end of the TSIP packet */
#endif /* TSIP_ENABLE */
#ifdef RTCM104_ENABLE
RTCM_SYNC_STATE, /* we have sync lock */
RTCM_SKIP_STATE, /* we have sync lock, but this character is bad */
RTCM_RECOGNIZED, /* we have an RTCM packet */
#endif /* RTCM104_ENABLE */
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