ardupilot/ArduCopter/Log.pde

// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-

#if LOGGING_ENABLED == ENABLED

// Code to Write and Read packets from DataFlash log memory
// Code to interact with the user to dump or erase logs

#if CLI_ENABLED == ENABLED
// These are function definitions so the Menu can be constructed before the functions
// are defined below. Order matters to the compiler.
static bool     print_log_menu(void);
static int8_t   dump_log(uint8_t argc,                  const Menu::arg *argv);
static int8_t   erase_logs(uint8_t argc,                const Menu::arg *argv);
static int8_t   select_logs(uint8_t argc,               const Menu::arg *argv);

// Creates a constant array of structs representing menu options
// and stores them in Flash memory, not RAM.
// User enters the string in the console to call the functions on the right.
// See class Menu in AP_Coommon for implementation details
const struct Menu::command log_menu_commands[] PROGMEM = {
    {"dump",        dump_log},
    {"erase",       erase_logs},
    {"enable",      select_logs},
    {"disable",     select_logs}
};

// A Macro to create the Menu
MENU2(log_menu, "Log", log_menu_commands, print_log_menu);

static bool
print_log_menu(void)
{
    cliSerial->printf_P(PSTR("logs enabled: "));

    if (0 == g.log_bitmask) {
        cliSerial->printf_P(PSTR("none"));
    }else{
        if (g.log_bitmask & MASK_LOG_ATTITUDE_FAST) cliSerial->printf_P(PSTR(" ATTITUDE_FAST"));
        if (g.log_bitmask & MASK_LOG_ATTITUDE_MED) cliSerial->printf_P(PSTR(" ATTITUDE_MED"));
        if (g.log_bitmask & MASK_LOG_GPS) cliSerial->printf_P(PSTR(" GPS"));
        if (g.log_bitmask & MASK_LOG_PM) cliSerial->printf_P(PSTR(" PM"));
        if (g.log_bitmask & MASK_LOG_CTUN) cliSerial->printf_P(PSTR(" CTUN"));
        if (g.log_bitmask & MASK_LOG_NTUN) cliSerial->printf_P(PSTR(" NTUN"));
        if (g.log_bitmask & MASK_LOG_RCIN) cliSerial->printf_P(PSTR(" RCIN"));
        if (g.log_bitmask & MASK_LOG_IMU) cliSerial->printf_P(PSTR(" IMU"));
        if (g.log_bitmask & MASK_LOG_CMD) cliSerial->printf_P(PSTR(" CMD"));
        if (g.log_bitmask & MASK_LOG_CURRENT) cliSerial->printf_P(PSTR(" CURRENT"));
        if (g.log_bitmask & MASK_LOG_RCOUT) cliSerial->printf_P(PSTR(" RCOUT"));
        if (g.log_bitmask & MASK_LOG_OPTFLOW) cliSerial->printf_P(PSTR(" OPTFLOW"));
        if (g.log_bitmask & MASK_LOG_COMPASS) cliSerial->printf_P(PSTR(" COMPASS"));
        if (g.log_bitmask & MASK_LOG_CAMERA) cliSerial->printf_P(PSTR(" CAMERA"));
    }

    cliSerial->println();

    DataFlash.ListAvailableLogs(cliSerial);

    return(true);
}

#if CLI_ENABLED == ENABLED
static int8_t
dump_log(uint8_t argc, const Menu::arg *argv)
{
    int16_t dump_log;
    uint16_t dump_log_start;
    uint16_t dump_log_end;
    uint16_t last_log_num;

    // check that the requested log number can be read
    dump_log = argv[1].i;
    last_log_num = DataFlash.find_last_log();

    if (dump_log == -2) {
        DataFlash.DumpPageInfo(cliSerial);
        return(-1);
    } else if (dump_log <= 0) {
        cliSerial->printf_P(PSTR("dumping all\n"));
        Log_Read(0, 1, 0);
        return(-1);
    } else if ((argc != 2) || ((uint16_t)dump_log <= (last_log_num - DataFlash.get_num_logs())) || (static_cast<uint16_t>(dump_log) > last_log_num)) {
        cliSerial->printf_P(PSTR("bad log number\n"));
        return(-1);
    }

    DataFlash.get_log_boundaries(dump_log, dump_log_start, dump_log_end);
    Log_Read((uint16_t)dump_log, dump_log_start, dump_log_end);
    return (0);
}
#endif

static int8_t
erase_logs(uint8_t argc, const Menu::arg *argv)
{
    in_mavlink_delay = true;
    do_erase_logs();
    in_mavlink_delay = false;
    return 0;
}

static int8_t
select_logs(uint8_t argc, const Menu::arg *argv)
{
    uint16_t bits;

    if (argc != 2) {
        cliSerial->printf_P(PSTR("missing log type\n"));
        return(-1);
    }

    bits = 0;

    // Macro to make the following code a bit easier on the eye.
    // Pass it the capitalised name of the log option, as defined
    // in defines.h but without the LOG_ prefix.  It will check for
    // that name as the argument to the command, and set the bit in
    // bits accordingly.
    //
    if (!strcasecmp_P(argv[1].str, PSTR("all"))) {
        bits = ~0;
    } else {
 #define TARG(_s)        if (!strcasecmp_P(argv[1].str, PSTR(# _s))) bits |= MASK_LOG_ ## _s
        TARG(ATTITUDE_FAST);
        TARG(ATTITUDE_MED);
        TARG(GPS);
        TARG(PM);
        TARG(CTUN);
        TARG(NTUN);
        TARG(RCIN);
        TARG(IMU);
        TARG(CMD);
        TARG(CURRENT);
        TARG(RCOUT);
        TARG(OPTFLOW);
        TARG(COMPASS);
        TARG(CAMERA);
 #undef TARG
    }

    if (!strcasecmp_P(argv[0].str, PSTR("enable"))) {
        g.log_bitmask.set_and_save(g.log_bitmask | bits);
    }else{
        g.log_bitmask.set_and_save(g.log_bitmask & ~bits);
    }

    return(0);
}

static int8_t
process_logs(uint8_t argc, const Menu::arg *argv)
{
    log_menu.run();
    return 0;
}
#endif // CLI_ENABLED

static void do_erase_logs(void)
{
    gcs_send_text_P(SEVERITY_HIGH, PSTR("Erasing logs\n"));
    DataFlash.EraseAll();
    gcs_send_text_P(SEVERITY_HIGH, PSTR("Log erase complete\n"));
}

#if AUTOTUNE_ENABLED == ENABLED
struct PACKED log_AutoTune {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t axis;           // roll or pitch
    uint8_t tune_step;      // tuning PI or D up or down
    float   rate_target;    // target achieved rotation rate
    float   rate_min;       // maximum achieved rotation rate
    float   rate_max;       // maximum achieved rotation rate
    float   new_gain_rp;    // newly calculated gain
    float   new_gain_rd;    // newly calculated gain
    float   new_gain_sp;    // newly calculated gain
};

// Write an Autotune data packet
static void Log_Write_AutoTune(uint8_t axis, uint8_t tune_step, float rate_target, float rate_min, float rate_max, float new_gain_rp, float new_gain_rd, float new_gain_sp)
{
    struct log_AutoTune pkt = {
        LOG_PACKET_HEADER_INIT(LOG_AUTOTUNE_MSG),
        time_us     : hal.scheduler->micros64(),
        axis        : axis,
        tune_step   : tune_step,
        rate_target : rate_target,
        rate_min    : rate_min,
        rate_max    : rate_max,
        new_gain_rp : new_gain_rp,
        new_gain_rd : new_gain_rd,
        new_gain_sp : new_gain_sp
    };
    DataFlash.WriteBlock(&pkt, sizeof(pkt));
}

struct PACKED log_AutoTuneDetails {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    float    angle_cd;      // lean angle in centi-degrees
    float    rate_cds;      // current rotation rate in centi-degrees / second
};

// Write an Autotune data packet
static void Log_Write_AutoTuneDetails(float angle_cd, float rate_cds)
{
    struct log_AutoTuneDetails pkt = {
        LOG_PACKET_HEADER_INIT(LOG_AUTOTUNEDETAILS_MSG),
        time_us     : hal.scheduler->micros64(),
        angle_cd    : angle_cd,
        rate_cds    : rate_cds
    };
    DataFlash.WriteBlock(&pkt, sizeof(pkt));
}
#endif

// Write a Current data packet
static void Log_Write_Current()
{
    DataFlash.Log_Write_Current(battery, (int16_t)(motors.get_throttle()));

    // also write power status
    DataFlash.Log_Write_Power();
}

struct PACKED log_Optflow {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t surface_quality;
    float flow_x;
    float flow_y;
    float body_x;
    float body_y;
};

// Write an optical flow packet
static void Log_Write_Optflow()
{
 #if OPTFLOW == ENABLED
    // exit immediately if not enabled
    if (!optflow.enabled()) {
        return;
    }
    const Vector2f &flowRate = optflow.flowRate();
    const Vector2f &bodyRate = optflow.bodyRate();
    struct log_Optflow pkt = {
        LOG_PACKET_HEADER_INIT(LOG_OPTFLOW_MSG),
        time_us         : hal.scheduler->micros64(),
        surface_quality : optflow.quality(),
        flow_x          : flowRate.x,
        flow_y          : flowRate.y,
        body_x          : bodyRate.x,
        body_y          : bodyRate.y
    };
    DataFlash.WriteBlock(&pkt, sizeof(pkt));
 #endif     // OPTFLOW == ENABLED
}

struct PACKED log_Nav_Tuning {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    float    desired_pos_x;
    float    desired_pos_y;
    float    pos_x;
    float    pos_y;
    float    desired_vel_x;
    float    desired_vel_y;
    float    vel_x;
    float    vel_y;
    float    desired_accel_x;
    float    desired_accel_y;
};

// Write an Nav Tuning packet
static void Log_Write_Nav_Tuning()
{
    const Vector3f &pos_target = pos_control.get_pos_target();
    const Vector3f &vel_target = pos_control.get_vel_target();
    const Vector3f &accel_target = pos_control.get_accel_target();
    const Vector3f &position = inertial_nav.get_position();
    const Vector3f &velocity = inertial_nav.get_velocity();

    struct log_Nav_Tuning pkt = {
        LOG_PACKET_HEADER_INIT(LOG_NAV_TUNING_MSG),
        time_us         : hal.scheduler->micros64(),
        desired_pos_x   : pos_target.x,
        desired_pos_y   : pos_target.y,
        pos_x           : position.x,
        pos_y           : position.y,
        desired_vel_x   : vel_target.x,
        desired_vel_y   : vel_target.y,
        vel_x           : velocity.x,
        vel_y           : velocity.y,
        desired_accel_x : accel_target.x,
        desired_accel_y : accel_target.y
    };
    DataFlash.WriteBlock(&pkt, sizeof(pkt));
}

struct PACKED log_Control_Tuning {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    int16_t  throttle_in;
    int16_t  angle_boost;
    float    throttle_out;
    float    desired_alt;
    float    inav_alt;
    int32_t  baro_alt;
    int16_t  desired_sonar_alt;
    int16_t  sonar_alt;
    int16_t  desired_climb_rate;
    int16_t  climb_rate;
};

// Write a control tuning packet
static void Log_Write_Control_Tuning()
{
    struct log_Control_Tuning pkt = {
        LOG_PACKET_HEADER_INIT(LOG_CONTROL_TUNING_MSG),
        time_us             : hal.scheduler->micros64(),
        throttle_in         : channel_throttle->control_in,
        angle_boost         : attitude_control.angle_boost(),
        throttle_out        : motors.get_throttle(),
        desired_alt         : pos_control.get_alt_target() / 100.0f,
        inav_alt            : inertial_nav.get_altitude() / 100.0f,
        baro_alt            : baro_alt,
        desired_sonar_alt   : (int16_t)target_sonar_alt,
        sonar_alt           : sonar_alt,
        desired_climb_rate  : (int16_t)pos_control.get_vel_target_z(),
        climb_rate          : climb_rate
    };
    DataFlash.WriteBlock(&pkt, sizeof(pkt));
}

struct PACKED log_Performance {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint16_t num_long_running;
    uint16_t num_loops;
    uint32_t max_time;
    int16_t  pm_test;
    uint8_t i2c_lockup_count;
    uint16_t ins_error_count;
};

// Write a performance monitoring packet
static void Log_Write_Performance()
{
    struct log_Performance pkt = {
        LOG_PACKET_HEADER_INIT(LOG_PERFORMANCE_MSG),
        time_us          : hal.scheduler->micros64(),
        num_long_running : perf_info_get_num_long_running(),
        num_loops        : perf_info_get_num_loops(),
        max_time         : perf_info_get_max_time(),
        pm_test          : pmTest1,
        i2c_lockup_count : hal.i2c->lockup_count(),
        ins_error_count  : ins.error_count()
    };
    DataFlash.WriteBlock(&pkt, sizeof(pkt));
}

// Write a mission command. Total length : 36 bytes
static void Log_Write_Cmd(const AP_Mission::Mission_Command &cmd)
{
    mavlink_mission_item_t mav_cmd = {};
    AP_Mission::mission_cmd_to_mavlink(cmd,mav_cmd);
    DataFlash.Log_Write_MavCmd(mission.num_commands(),mav_cmd);
}

// Write an attitude packet
static void Log_Write_Attitude()
{
    Vector3f targets = attitude_control.angle_ef_targets();
    DataFlash.Log_Write_Attitude(ahrs, targets);

#if AP_AHRS_NAVEKF_AVAILABLE
 #if OPTFLOW == ENABLED
    DataFlash.Log_Write_EKF(ahrs,optflow.enabled());
 #else
    DataFlash.Log_Write_EKF(ahrs,false);
 #endif
    DataFlash.Log_Write_AHRS2(ahrs);
#endif
#if CONFIG_HAL_BOARD == HAL_BOARD_SITL
    sitl.Log_Write_SIMSTATE(DataFlash);
#endif
    DataFlash.Log_Write_POS(ahrs);
}

struct PACKED log_Rate {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    float   control_roll;
    float   roll;
    float   roll_out;
    float   control_pitch;
    float   pitch;
    float   pitch_out;
    float   control_yaw;
    float   yaw;
    float   yaw_out;
    float   control_accel;
    float   accel;
    float   accel_out;
};

// Write an rate packet
static void Log_Write_Rate()
{
    const Vector3f &rate_targets = attitude_control.rate_bf_targets();
    const Vector3f &accel_target = pos_control.get_accel_target();
    struct log_Rate pkt_rate = {
        LOG_PACKET_HEADER_INIT(LOG_RATE_MSG),
        time_us         : hal.scheduler->micros64(),
        control_roll    : (float)rate_targets.x,
        roll            : (float)(ahrs.get_gyro().x * AC_ATTITUDE_CONTROL_DEGX100),
        roll_out        : motors.get_roll(),
        control_pitch   : (float)rate_targets.y,
        pitch           : (float)(ahrs.get_gyro().y * AC_ATTITUDE_CONTROL_DEGX100),
        pitch_out       : motors.get_pitch(),
        control_yaw     : (float)rate_targets.z,
        yaw             : (float)(ahrs.get_gyro().z * AC_ATTITUDE_CONTROL_DEGX100),
        yaw_out         : motors.get_yaw(),
        control_accel   : (float)accel_target.z,
        accel           : (float)(-(ahrs.get_accel_ef_blended().z + GRAVITY_MSS) * 100.0f),
        accel_out       : motors.get_throttle()
    };
    DataFlash.WriteBlock(&pkt_rate, sizeof(pkt_rate));
}

struct PACKED log_MotBatt {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    float   lift_max;
    float   bat_volt;
    float   bat_res;
    float   th_limit;
};

// Write an rate packet
static void Log_Write_MotBatt()
{
    struct log_MotBatt pkt_mot = {
        LOG_PACKET_HEADER_INIT(LOG_MOTBATT_MSG),
        time_us         : hal.scheduler->micros64(),
        lift_max        : (float)(motors.get_lift_max()),
        bat_volt        : (float)(motors.get_batt_voltage_filt()),
        bat_res         : (float)(motors.get_batt_resistance()),
        th_limit        : (float)(motors.get_throttle_limit())
    };
    DataFlash.WriteBlock(&pkt_mot, sizeof(pkt_mot));
}

struct PACKED log_Startup {
    LOG_PACKET_HEADER;
    uint64_t time_us;
};

// Write Startup packet
static void Log_Write_Startup()
{
    struct log_Startup pkt = {
        LOG_PACKET_HEADER_INIT(LOG_STARTUP_MSG),
        time_us         : hal.scheduler->micros64()
    };
    DataFlash.WriteBlock(&pkt, sizeof(pkt));

    Log_Write_EntireMission();
}

static void Log_Write_EntireMission()
{
    DataFlash.Log_Write_Message_P(PSTR("New mission"));

    AP_Mission::Mission_Command cmd;
    for (uint16_t i = 0; i < mission.num_commands(); i++) {
        if (mission.read_cmd_from_storage(i,cmd)) {
            Log_Write_Cmd(cmd);
        }
    }
}

struct PACKED log_Event {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t id;
};

// Wrote an event packet
static void Log_Write_Event(uint8_t id)
{
    if (should_log(MASK_LOG_ANY)) {
        struct log_Event pkt = {
            LOG_PACKET_HEADER_INIT(LOG_EVENT_MSG),
            time_us  : hal.scheduler->micros64(),
            id       : id
        };
        DataFlash.WriteBlock(&pkt, sizeof(pkt));
    }
}

struct PACKED log_Data_Int16t {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t id;
    int16_t data_value;
};

// Write an int16_t data packet
UNUSED_FUNCTION
static void Log_Write_Data(uint8_t id, int16_t value)
{
    if (should_log(MASK_LOG_ANY)) {
        struct log_Data_Int16t pkt = {
            LOG_PACKET_HEADER_INIT(LOG_DATA_INT16_MSG),
            time_us     : hal.scheduler->micros64(),
            id          : id,
            data_value  : value
        };
        DataFlash.WriteBlock(&pkt, sizeof(pkt));
    }
}

struct PACKED log_Data_UInt16t {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t id;
    uint16_t data_value;
};

// Write an uint16_t data packet
UNUSED_FUNCTION 
static void Log_Write_Data(uint8_t id, uint16_t value)
{
    if (should_log(MASK_LOG_ANY)) {
        struct log_Data_UInt16t pkt = {
            LOG_PACKET_HEADER_INIT(LOG_DATA_UINT16_MSG),
            time_us     : hal.scheduler->micros64(),
            id          : id,
            data_value  : value
        };
        DataFlash.WriteBlock(&pkt, sizeof(pkt));
    }
}

struct PACKED log_Data_Int32t {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t id;
    int32_t data_value;
};

// Write an int32_t data packet
static void Log_Write_Data(uint8_t id, int32_t value)
{
    if (should_log(MASK_LOG_ANY)) {
        struct log_Data_Int32t pkt = {
            LOG_PACKET_HEADER_INIT(LOG_DATA_INT32_MSG),
            time_us  : hal.scheduler->micros64(),
            id          : id,
            data_value  : value
        };
        DataFlash.WriteBlock(&pkt, sizeof(pkt));
    }
}

struct PACKED log_Data_UInt32t {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t id;
    uint32_t data_value;
};

// Write a uint32_t data packet
static void Log_Write_Data(uint8_t id, uint32_t value)
{
    if (should_log(MASK_LOG_ANY)) {
        struct log_Data_UInt32t pkt = {
            LOG_PACKET_HEADER_INIT(LOG_DATA_UINT32_MSG),
            time_us     : hal.scheduler->micros64(),
            id          : id,
            data_value  : value
        };
        DataFlash.WriteBlock(&pkt, sizeof(pkt));
    }
}

struct PACKED log_Data_Float {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t id;
    float data_value;
};

// Write a float data packet
UNUSED_FUNCTION
static void Log_Write_Data(uint8_t id, float value)
{
    if (should_log(MASK_LOG_ANY)) {
        struct log_Data_Float pkt = {
            LOG_PACKET_HEADER_INIT(LOG_DATA_FLOAT_MSG),
            time_us     : hal.scheduler->micros64(),
            id          : id,
            data_value  : value
        };
        DataFlash.WriteBlock(&pkt, sizeof(pkt));
    }
}

struct PACKED log_Error {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t sub_system;
    uint8_t error_code;
};

// Write an error packet
static void Log_Write_Error(uint8_t sub_system, uint8_t error_code)
{
    struct log_Error pkt = {
        LOG_PACKET_HEADER_INIT(LOG_ERROR_MSG),
        time_us       : hal.scheduler->micros64(),
        sub_system    : sub_system,
        error_code    : error_code,
    };
    DataFlash.WriteBlock(&pkt, sizeof(pkt));
}

static void Log_Write_Baro(void)
{
    DataFlash.Log_Write_Baro(barometer);
}

struct PACKED log_ParameterTuning {
    LOG_PACKET_HEADER;
    uint64_t time_us;
    uint8_t  parameter;     // parameter we are tuning, e.g. 39 is CH6_CIRCLE_RATE
    float    tuning_value;  // normalized value used inside tuning() function
    int16_t  control_in;    // raw tune input value
    int16_t  tuning_low;    // tuning low end value
    int16_t  tuning_high;   // tuning high end value
};

static void Log_Write_Parameter_Tuning(uint8_t param, float tuning_val, int16_t control_in, int16_t tune_low, int16_t tune_high)
{
    struct log_ParameterTuning pkt_tune = {
        LOG_PACKET_HEADER_INIT(LOG_PARAMTUNE_MSG),
        time_us        : hal.scheduler->micros64(),
        parameter      : param,
        tuning_value   : tuning_val,
        control_in     : control_in,
        tuning_low     : tune_low,
        tuning_high    : tune_high
    };

    DataFlash.WriteBlock(&pkt_tune, sizeof(pkt_tune));
}

static const struct LogStructure log_structure[] PROGMEM = {
    LOG_COMMON_STRUCTURES,
#if AUTOTUNE_ENABLED == ENABLED
    { LOG_AUTOTUNE_MSG, sizeof(log_AutoTune),
      "ATUN", "QBBffffff",       "TimeUS,Axis,TuneStep,RateTarg,RateMin,RateMax,RP,RD,SP" },
    { LOG_AUTOTUNEDETAILS_MSG, sizeof(log_AutoTuneDetails),
      "ATDE", "Qff",          "TimeUS,Angle,Rate" },
#endif
    { LOG_PARAMTUNE_MSG, sizeof(log_ParameterTuning),
      "PTUN", "QBfHHH",          "TimeUS,Param,TunVal,CtrlIn,TunLo,TunHi" },  
    { LOG_OPTFLOW_MSG, sizeof(log_Optflow),       
      "OF",   "QBffff",   "TimeUS,Qual,flowX,flowY,bodyX,bodyY" },
    { LOG_NAV_TUNING_MSG, sizeof(log_Nav_Tuning),       
      "NTUN", "Qffffffffff", "TimeUS,DPosX,DPosY,PosX,PosY,DVelX,DVelY,VelX,VelY,DAccX,DAccY" },
    { LOG_CONTROL_TUNING_MSG, sizeof(log_Control_Tuning),
      "CTUN", "Qhhfffecchh", "TimeUS,ThrIn,AngBst,ThrOut,DAlt,Alt,BarAlt,DSAlt,SAlt,DCRt,CRt" },
    { LOG_PERFORMANCE_MSG, sizeof(log_Performance), 
      "PM",  "QHHIhBH",    "TimeUS,NLon,NLoop,MaxT,PMT,I2CErr,INSErr" },
    { LOG_RATE_MSG, sizeof(log_Rate),
      "RATE", "Qffffffffffff",  "TimeUS,RDes,R,ROut,PDes,P,POut,YDes,Y,YOut,ADes,A,AOut" },
    { LOG_MOTBATT_MSG, sizeof(log_MotBatt),
      "MOTB", "Qffff",  "TimeUS,LiftMax,BatVolt,BatRes,ThLimit" },
    { LOG_STARTUP_MSG, sizeof(log_Startup),         
      "STRT", "Q",            "TimeUS" },
    { LOG_EVENT_MSG, sizeof(log_Event),         
      "EV",   "QB",           "TimeUS,Id" },
    { LOG_DATA_INT16_MSG, sizeof(log_Data_Int16t),         
      "D16",   "QBh",         "TimeUS,Id,Value" },
    { LOG_DATA_UINT16_MSG, sizeof(log_Data_UInt16t),         
      "DU16",  "QBH",         "TimeUS,Id,Value" },
    { LOG_DATA_INT32_MSG, sizeof(log_Data_Int32t),         
      "D32",   "QBi",         "TimeUS,Id,Value" },
    { LOG_DATA_UINT32_MSG, sizeof(log_Data_UInt32t),         
      "DU32",  "QBI",         "TimeUS,Id,Value" },
    { LOG_DATA_FLOAT_MSG, sizeof(log_Data_Float),         
      "DFLT",  "QBf",         "TimeUS,Id,Value" },
    { LOG_ERROR_MSG, sizeof(log_Error),         
      "ERR",   "QBB",         "TimeUS,Subsys,ECode" },
};

#if CLI_ENABLED == ENABLED
// Read the DataFlash log memory
static void Log_Read(uint16_t log_num, uint16_t start_page, uint16_t end_page)
{
    cliSerial->printf_P(PSTR("\n" FIRMWARE_STRING
                             "\nFree RAM: %u\n"
                             "\nFrame: " FRAME_CONFIG_STRING "\n"),
                        (unsigned) hal.util->available_memory());

    cliSerial->println_P(PSTR(HAL_BOARD_NAME));

    DataFlash.LogReadProcess(log_num, start_page, end_page, 
                             print_flight_mode,
                             cliSerial);
}
#endif // CLI_ENABLED

// start a new log
static void start_logging() 
{
    if (g.log_bitmask != 0) {
        if (!ap.logging_started) {
            ap.logging_started = true;
            in_mavlink_delay = true;
            DataFlash.StartNewLog();
            in_mavlink_delay = false;
            DataFlash.Log_Write_Message_P(PSTR(FIRMWARE_STRING));

#if defined(PX4_GIT_VERSION) && defined(NUTTX_GIT_VERSION)
            DataFlash.Log_Write_Message_P(PSTR("PX4: " PX4_GIT_VERSION " NuttX: " NUTTX_GIT_VERSION));
#endif

            // write system identifier as well if available
            char sysid[40];
            if (hal.util->get_system_id(sysid)) {
                DataFlash.Log_Write_Message(sysid);
            }
            DataFlash.Log_Write_Message_P(PSTR("Frame: " FRAME_CONFIG_STRING));

            // log the flight mode
            DataFlash.Log_Write_Mode(control_mode);
        }
        // enable writes
        DataFlash.EnableWrites(true);
    }
}

#else // LOGGING_ENABLED

static void Log_Write_Startup() {}
static void Log_Write_EntireMission() {}
#if AUTOTUNE_ENABLED == ENABLED
static void Log_Write_AutoTune(uint8_t axis, uint8_t tune_step, float rate_target, float rate_min, float rate_max, float new_gain_rp, float new_gain_rd, float new_gain_sp) {}
static void Log_Write_AutoTuneDetails(float angle_cd, float rate_cds) {}
#endif
static void Log_Write_Current() {}
static void Log_Write_Attitude() {}
static void Log_Write_Rate() {}
static void Log_Write_MotBatt() {}
static void Log_Write_Data(uint8_t id, int16_t value){}
static void Log_Write_Data(uint8_t id, uint16_t value){}
static void Log_Write_Data(uint8_t id, int32_t value){}
static void Log_Write_Data(uint8_t id, uint32_t value){}
static void Log_Write_Data(uint8_t id, float value){}
static void Log_Write_Event(uint8_t id){}
static void Log_Write_Optflow() {}
static void Log_Write_Nav_Tuning() {}
static void Log_Write_Control_Tuning() {}
static void Log_Write_Performance() {}
static void Log_Write_Cmd(const AP_Mission::Mission_Command &cmd) {}
static void Log_Write_Error(uint8_t sub_system, uint8_t error_code) {}
static void Log_Write_Baro(void) {}
static int8_t process_logs(uint8_t argc, const Menu::arg *argv) {
    return 0;
}

#endif // LOGGING_DISABLED