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author | Lorenz Meier <lm@inf.ethz.ch> | 2013-05-09 16:09:33 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-05-09 16:09:33 +0200 |
commit | 5886e93a33329d39dc2ea535d224fcd60ab7afd7 (patch) | |
tree | c762d2f0cedae6608dde7935b23a65188548055f /src/drivers/gps/ubx.cpp | |
parent | 614bbb15109236c353c02b1d2c2494bc442a699f (diff) | |
parent | 27a25b5e172c972e4f9f31c2a30114498346bb08 (diff) | |
download | px4-firmware-5886e93a33329d39dc2ea535d224fcd60ab7afd7.tar.gz px4-firmware-5886e93a33329d39dc2ea535d224fcd60ab7afd7.tar.bz2 px4-firmware-5886e93a33329d39dc2ea535d224fcd60ab7afd7.zip |
Merge branch 'gps_vel' of github.com:PX4/Firmware
Diffstat (limited to 'src/drivers/gps/ubx.cpp')
-rw-r--r-- | src/drivers/gps/ubx.cpp | 164 |
1 files changed, 97 insertions, 67 deletions
diff --git a/src/drivers/gps/ubx.cpp b/src/drivers/gps/ubx.cpp index c150f5271..b3093b0f6 100644 --- a/src/drivers/gps/ubx.cpp +++ b/src/drivers/gps/ubx.cpp @@ -60,7 +60,8 @@ UBX::UBX(const int &fd, struct vehicle_gps_position_s *gps_position) : _fd(fd), _gps_position(gps_position), -_waiting_for_ack(false) +_waiting_for_ack(false), +_disable_cmd_counter(0) { decode_init(); } @@ -139,12 +140,12 @@ UBX::configure(unsigned &baudrate) cfg_rate_packet.clsID = UBX_CLASS_CFG; cfg_rate_packet.msgID = UBX_MESSAGE_CFG_RATE; cfg_rate_packet.length = UBX_CFG_RATE_LENGTH; - cfg_rate_packet.measRate = UBX_CFG_RATE_PAYLOAD_MEASRATE; + cfg_rate_packet.measRate = UBX_CFG_RATE_PAYLOAD_MEASINTERVAL; cfg_rate_packet.navRate = UBX_CFG_RATE_PAYLOAD_NAVRATE; cfg_rate_packet.timeRef = UBX_CFG_RATE_PAYLOAD_TIMEREF; send_config_packet(_fd, (uint8_t*)&cfg_rate_packet, sizeof(cfg_rate_packet)); - if (receive(UBX_CONFIG_TIMEOUT) < 0) { + if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) { /* try next baudrate */ continue; } @@ -164,74 +165,41 @@ UBX::configure(unsigned &baudrate) cfg_nav5_packet.fixMode = UBX_CFG_NAV5_PAYLOAD_FIXMODE; send_config_packet(_fd, (uint8_t*)&cfg_nav5_packet, sizeof(cfg_nav5_packet)); - if (receive(UBX_CONFIG_TIMEOUT) < 0) { - /* try next baudrate */ - continue; - } - - type_gps_bin_cfg_msg_packet_t cfg_msg_packet; - memset(&cfg_msg_packet, 0, sizeof(cfg_msg_packet)); - - _clsID_needed = UBX_CLASS_CFG; - _msgID_needed = UBX_MESSAGE_CFG_MSG; - - cfg_msg_packet.clsID = UBX_CLASS_CFG; - cfg_msg_packet.msgID = UBX_MESSAGE_CFG_MSG; - cfg_msg_packet.length = UBX_CFG_MSG_LENGTH; - /* Choose fast 5Hz rate for all messages except SVINFO which is big and not important */ - cfg_msg_packet.rate[1] = UBX_CFG_MSG_PAYLOAD_RATE1_5HZ; - - cfg_msg_packet.msgClass_payload = UBX_CLASS_NAV; - cfg_msg_packet.msgID_payload = UBX_MESSAGE_NAV_POSLLH; - - send_config_packet(_fd, (uint8_t*)&cfg_msg_packet, sizeof(cfg_msg_packet)); - if (receive(UBX_CONFIG_TIMEOUT) < 0) { - /* try next baudrate */ - continue; - } - - cfg_msg_packet.msgClass_payload = UBX_CLASS_NAV; - cfg_msg_packet.msgID_payload = UBX_MESSAGE_NAV_TIMEUTC; - - send_config_packet(_fd, (uint8_t*)&cfg_msg_packet, sizeof(cfg_msg_packet)); - if (receive(UBX_CONFIG_TIMEOUT) < 0) { - /* try next baudrate */ - continue; - } - - cfg_msg_packet.msgClass_payload = UBX_CLASS_NAV; - cfg_msg_packet.msgID_payload = UBX_MESSAGE_NAV_SVINFO; - /* For satelites info 1Hz is enough */ - cfg_msg_packet.rate[1] = UBX_CFG_MSG_PAYLOAD_RATE1_1HZ; - - send_config_packet(_fd, (uint8_t*)&cfg_msg_packet, sizeof(cfg_msg_packet)); - if (receive(UBX_CONFIG_TIMEOUT) < 0) { - /* try next baudrate */ - continue; - } - - cfg_msg_packet.msgClass_payload = UBX_CLASS_NAV; - cfg_msg_packet.msgID_payload = UBX_MESSAGE_NAV_SOL; - - send_config_packet(_fd, (uint8_t*)&cfg_msg_packet, sizeof(cfg_msg_packet)); - if (receive(UBX_CONFIG_TIMEOUT) < 0) { + if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) { /* try next baudrate */ continue; } - cfg_msg_packet.msgClass_payload = UBX_CLASS_NAV; - cfg_msg_packet.msgID_payload = UBX_MESSAGE_NAV_VELNED; - - send_config_packet(_fd, (uint8_t*)&cfg_msg_packet, sizeof(cfg_msg_packet)); - if (receive(UBX_CONFIG_TIMEOUT) < 0) { - /* try next baudrate */ - continue; - } -// cfg_msg_packet.msgClass_payload = UBX_CLASS_NAV; -// cfg_msg_packet.msgID_payload = UBX_MESSAGE_NAV_DOP; - -// cfg_msg_packet.msgClass_payload = UBX_CLASS_RXM; -// cfg_msg_packet.msgID_payload = UBX_MESSAGE_RXM_SVSI; + configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_POSLLH, + UBX_CFG_MSG_PAYLOAD_RATE1_5HZ); + /* insist of receiving the ACK for this packet */ + // if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) + // continue; + configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_TIMEUTC, + 1); + // /* insist of receiving the ACK for this packet */ + // if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) + // continue; + configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_SOL, + 1); + // /* insist of receiving the ACK for this packet */ + // if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) + // continue; + configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_VELNED, + 1); + // /* insist of receiving the ACK for this packet */ + // if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) + // continue; + // configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_DOP, + // 0); + // /* insist of receiving the ACK for this packet */ + // if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) + // continue; + configure_message_rate(UBX_CLASS_NAV, UBX_MESSAGE_NAV_SVINFO, + 0); + // /* insist of receiving the ACK for this packet */ + // if (wait_for_ack(UBX_CONFIG_TIMEOUT) < 0) + // continue; _waiting_for_ack = false; return 0; @@ -240,6 +208,15 @@ UBX::configure(unsigned &baudrate) } int +UBX::wait_for_ack(unsigned timeout) +{ + _waiting_for_ack = true; + int ret = receive(timeout); + _waiting_for_ack = false; + return ret; +} + +int UBX::receive(unsigned timeout) { /* poll descriptor */ @@ -498,6 +475,8 @@ UBX::handle_message() _gps_position->eph_m = (float)packet->hAcc * 1e-3f; // from mm to m _gps_position->epv_m = (float)packet->vAcc * 1e-3f; // from mm to m + _rate_count_lat_lon++; + /* Add timestamp to finish the report */ _gps_position->timestamp_position = hrt_absolute_time(); /* only return 1 when new position is available */ @@ -653,6 +632,8 @@ UBX::handle_message() _gps_position->c_variance_rad = (float)packet->cAcc * M_DEG_TO_RAD_F * 1e-5f; _gps_position->vel_ned_valid = true; _gps_position->timestamp_velocity = hrt_absolute_time(); + + _rate_count_vel++; } break; @@ -693,6 +674,12 @@ UBX::handle_message() default: //we don't know the message warnx("UBX: Unknown message received: %d-%d\n",_message_class,_message_id); + if (_disable_cmd_counter++ == 0) { + // Don't attempt for every message to disable, some might not be disabled */ + warnx("Disabling message 0x%02x 0x%02x", (unsigned)_message_class, (unsigned)_message_id); + configure_message_rate(_message_class, _message_id, 0); + } + return ret; ret = -1; break; } @@ -737,6 +724,25 @@ UBX::add_checksum_to_message(uint8_t* message, const unsigned length) } void +UBX::add_checksum(uint8_t* message, const unsigned length, uint8_t &ck_a, uint8_t &ck_b) +{ + for (unsigned i = 0; i < length; i++) { + ck_a = ck_a + message[i]; + ck_b = ck_b + ck_a; + } +} + +void +UBX::configure_message_rate(uint8_t msg_class, uint8_t msg_id, uint8_t rate) +{ + struct ubx_cfg_msg_rate msg; + msg.msg_class = msg_class; + msg.msg_id = msg_id; + msg.rate = rate; + send_message(CFG, UBX_MESSAGE_CFG_MSG, &msg, sizeof(msg)); +} + +void UBX::send_config_packet(const int &fd, uint8_t *packet, const unsigned length) { ssize_t ret = 0; @@ -753,3 +759,27 @@ UBX::send_config_packet(const int &fd, uint8_t *packet, const unsigned length) if (ret != (int)length + (int)sizeof(sync_bytes)) // XXX is there a neater way to get rid of the unsigned signed warning? warnx("ubx: config write fail"); } + +void +UBX::send_message(uint8_t msg_class, uint8_t msg_id, void *msg, uint8_t size) +{ + struct ubx_header header; + uint8_t ck_a=0, ck_b=0; + header.sync1 = UBX_SYNC1; + header.sync2 = UBX_SYNC2; + header.msg_class = msg_class; + header.msg_id = msg_id; + header.length = size; + + add_checksum((uint8_t *)&header.msg_class, sizeof(header)-2, ck_a, ck_b); + add_checksum((uint8_t *)msg, size, ck_a, ck_b); + + // Configure receive check + _clsID_needed = msg_class; + _msgID_needed = msg_id; + + write(_fd, (const char *)&header, sizeof(header)); + write(_fd, (const char *)msg, size); + write(_fd, (const char *)&ck_a, 1); + write(_fd, (const char *)&ck_b, 1); +} |