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   1 /*
   2  * Copyright © 2017 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  */
  14
  15 #ifndef _AO_EEPROM_READ_H_
  16 #define _AO_EEPROM_READ_H_
  17
  18 #include <stdint.h>
  19 #include <stdio.h>
  20 #include <ao-ms5607.h>
  21
  22 #define AO_MAX_CALLSIGN 8
  23 #define AO_AES_LEN      16
  24 #define AO_PYRO_NUM     8
  25
  26 /* required functions from the underlying log system */
  27
  28 #define AO_LOG_FORMAT_UNKNOWN           0       /* unknown; altosui will have to guess */
  29 #define AO_LOG_FORMAT_FULL              1       /* 8 byte typed log records */
  30 #define AO_LOG_FORMAT_TINY              2       /* two byte state/baro records */
  31 #define AO_LOG_FORMAT_TELEMETRY         3       /* 32 byte ao_telemetry records */
  32 #define AO_LOG_FORMAT_TELESCIENCE       4       /* 32 byte typed telescience records */
  33 #define AO_LOG_FORMAT_TELEMEGA_OLD      5       /* 32 byte typed telemega records */
  34 #define AO_LOG_FORMAT_EASYMINI1         6       /* 16-byte MS5607 baro only, 3.0V supply */
  35 #define AO_LOG_FORMAT_TELEMETRUM        7       /* 16-byte typed telemetrum records */
  36 #define AO_LOG_FORMAT_TELEMINI2         8       /* 16-byte MS5607 baro only, 3.3V supply, cc1111 SoC */
  37 #define AO_LOG_FORMAT_TELEGPS           9       /* 32 byte telegps records */
  38 #define AO_LOG_FORMAT_TELEMEGA          10      /* 32 byte typed telemega records with 32 bit gyro cal */
  39 #define AO_LOG_FORMAT_DETHERM           11      /* 16-byte MS5607 baro only, no ADC */
  40 #define AO_LOG_FORMAT_TELEMINI3         12      /* 16-byte MS5607 baro only, 3.3V supply, stm32f042 SoC */
  41 #define AO_LOG_FORMAT_TELEFIRETWO       13      /* 32-byte test stand data */
  42 #define AO_LOG_FORMAT_EASYMINI2         14      /* 16-byte MS5607 baro only, 3.3V supply, stm32f042 SoC */
  43 #define AO_LOG_FORMAT_TELEMEGA_3        15      /* 32 byte typed telemega records with 32 bit gyro cal and mpu9250 */
  44 #define AO_LOG_FORMAT_EASYMEGA_2        16      /* 32 byte typed telemega records with 32 bit gyro cal, mpu9250 rotated 90° and adxl375 */
  45 #define AO_LOG_FORMAT_TELESTATIC        17      /* 32 byte typed telestatic records */
  46 #define AO_LOG_FORMAT_MICROPEAK2        18      /* 2-byte baro values with header */
  47 #define AO_LOG_FORMAT_TELEMEGA_4        19      /* 32 byte typed telemega records with 32 bit gyro cal and Bmx160 */
  48 #define AO_LOG_FORMAT_EASYMOTOR         20      /* 16 byte typed easymotor records with pressure sensor and adxl375 */
  49 #define AO_LOG_FORMAT_TELEMEGA_5        21      /* 32 byte typed telemega records with 32 bit gyro cal, mpu6000 and mmc5983 */
  50 #define AO_LOG_FORMAT_TELEMEGA_6        22      /* 32 byte typed telemega records with 32 bit gyro cal, bmi088 and mmc5983 */
  51 #define AO_LOG_FORMAT_NONE              127     /* No log at all */
  52
  53 enum ao_pyro_flag {
  54         ao_pyro_none                    = 0x00000000,
  55
  56         ao_pyro_accel_less              = 0x00000001,
  57         ao_pyro_accel_greater           = 0x00000002,
  58
  59         ao_pyro_speed_less              = 0x00000004,
  60         ao_pyro_speed_greater           = 0x00000008,
  61
  62         ao_pyro_height_less             = 0x00000010,
  63         ao_pyro_height_greater          = 0x00000020,
  64
  65         ao_pyro_orient_less             = 0x00000040,
  66         ao_pyro_orient_greater          = 0x00000080,
  67
  68         ao_pyro_time_less               = 0x00000100,
  69         ao_pyro_time_greater            = 0x00000200,
  70
  71         ao_pyro_ascending               = 0x00000400,
  72         ao_pyro_descending              = 0x00000800,
  73
  74         ao_pyro_after_motor             = 0x00001000,
  75
  76         ao_pyro_delay                   = 0x00002000,
  77
  78         ao_pyro_state_less              = 0x00004000,
  79         ao_pyro_state_greater_or_equal  = 0x00008000,
  80 };
  81
  82 struct ao_pyro {
  83         enum ao_pyro_flag       flags;
  84         int16_t                 accel_less, accel_greater;
  85         int16_t                 speed_less, speed_greater;
  86         int16_t                 height_less, height_greater;
  87         int16_t                 orient_less, orient_greater;
  88         int16_t                 time_less, time_greater;
  89         int16_t                 delay;
  90         uint8_t                 state_less, state_greater_or_equal;
  91         int16_t                 motor;
  92         uint16_t                delay_done;
  93         uint8_t                 _unused;        /* was 'fired' */
  94 };
  95
  96 struct ao_config {
  97         uint8_t         major;
  98         uint8_t         minor;
  99         uint16_t        main_deploy;
 100         int16_t         accel_plus_g;           /* changed for minor version 2 */
 101         uint8_t         _legacy_radio_channel;
 102         char            callsign[AO_MAX_CALLSIGN + 1];
 103         uint8_t         apogee_delay;           /* minor version 1 */
 104         int16_t         accel_minus_g;          /* minor version 2 */
 105         uint32_t        radio_cal;              /* minor version 3 */
 106         uint32_t        flight_log_max;         /* minor version 4 */
 107         uint8_t         ignite_mode;            /* minor version 5 */
 108         uint8_t         pad_orientation;        /* minor version 6 */
 109         uint32_t        radio_setting;          /* minor version 7 */
 110         uint8_t         radio_enable;           /* minor version 8 */
 111         uint8_t         aes_key[AO_AES_LEN];    /* minor version 9 */
 112         uint32_t        frequency;              /* minor version 10 */
 113         uint16_t        apogee_lockout;         /* minor version 11 */
 114         struct ao_pyro  pyro[AO_PYRO_NUM];      /* minor version 12 */
 115         uint16_t        aprs_interval;          /* minor version 13 */
 116         uint8_t         radio_power;            /* minor version 14 */
 117         uint8_t         radio_amp;              /* minor version 14 */
 118         int16_t         accel_zero_along;       /* minor version 15 */
 119         int16_t         accel_zero_across;      /* minor version 15 */
 120         int16_t         accel_zero_through;     /* minor version 15 */
 121         uint8_t         mid_beep;               /* minor version 16 */
 122         uint16_t        tracker_motion;         /* minor version 17 */
 123         uint8_t         tracker_interval;       /* minor version 17 */
 124         uint16_t        pyro_time;              /* minor version 18 */
 125         uint8_t         aprs_ssid;              /* minor version 19 */
 126         uint8_t         radio_rate;             /* minor version 20 */
 127         uint32_t        send_frequency;         /* minor version 21 */
 128         uint8_t         aprs_format;            /* minor version 22 */
 129         uint8_t         pad_box;                /* minor version 22 */
 130         uint8_t         pad_idle;               /* minor version 23 */
 131 };
 132
 133 /*
 134  * ao_log_big.c
 135  */
 136
 137 /*
 138  * The data log is recorded in the eeprom as a sequence
 139  * of data packets.
 140  *
 141  * Each packet starts with a 4-byte header that has the
 142  * packet type, the packet checksum and the tick count. Then
 143  * they all contain 2 16 bit values which hold packet-specific
 144  * data.
 145  *
 146  * For each flight, the first packet
 147  * is FLIGHT packet, indicating the serial number of the
 148  * device and a unique number marking the number of flights
 149  * recorded by this device.
 150  *
 151  * During flight, data from the accelerometer and barometer
 152  * are recorded in SENSOR packets, using the raw 16-bit values
 153  * read from the A/D converter.
 154  *
 155  * Also during flight, but at a lower rate, the deployment
 156  * sensors are recorded in DEPLOY packets. The goal here is to
 157  * detect failure in the deployment circuits.
 158  *
 159  * STATE packets hold state transitions as the flight computer
 160  * transitions through different stages of the flight.
 161  */
 162 #define AO_LOG_FLIGHT           'F'
 163 #define AO_LOG_SENSOR           'A'
 164 #define AO_LOG_TEMP_VOLT        'T'
 165 #define AO_LOG_DEPLOY           'D'
 166 #define AO_LOG_STATE            'S'
 167 #define AO_LOG_GPS_TIME         'G'
 168 #define AO_LOG_GPS_LAT          'N'
 169 #define AO_LOG_GPS_LON          'W'
 170 #define AO_LOG_GPS_ALT          'H'
 171 #define AO_LOG_GPS_SAT          'V'
 172 #define AO_LOG_GPS_DATE         'Y'
 173 #define AO_LOG_GPS_POS          'P'
 174
 175 #define AO_LOG_POS_NONE         (~0UL)
 176
 177 /* Common header in all log formats */
 178 struct ao_log_header {
 179         char                    type;                           /* 0 */
 180         uint8_t                 csum;                           /* 1 */
 181         uint16_t                tick;                           /* 2 */
 182 };
 183
 184 struct ao_log_record {
 185         char                    type;                           /* 0 */
 186         uint8_t                 csum;                           /* 1 */
 187         uint16_t                tick;                           /* 2 */
 188         union {
 189                 struct {
 190                         int16_t         ground_accel;           /* 4 */
 191                         uint16_t        flight;                 /* 6 */
 192                 } flight;
 193                 struct {
 194                         int16_t         accel;                  /* 4 */
 195                         int16_t         pres;                   /* 6 */
 196                 } sensor;
 197                 struct {
 198                         int16_t         temp;
 199                         int16_t         v_batt;
 200                 } temp_volt;
 201                 struct {
 202                         int16_t         drogue;
 203                         int16_t         main;
 204                 } deploy;
 205                 struct {
 206                         uint16_t        state;
 207                         uint16_t        reason;
 208                 } state;
 209                 struct {
 210                         uint8_t         hour;
 211                         uint8_t         minute;
 212                         uint8_t         second;
 213                         uint8_t         flags;
 214                 } gps_time;
 215                 int32_t         gps_latitude;
 216                 int32_t         gps_longitude;
 217                 struct {
 218                         uint16_t        altitude_low;
 219                         int16_t         altitude_high;
 220                 } gps_altitude;
 221                 struct {
 222                         uint16_t        svid;
 223                         uint8_t         unused;
 224                         uint8_t         c_n;
 225                 } gps_sat;
 226                 struct {
 227                         uint8_t         year;
 228                         uint8_t         month;
 229                         uint8_t         day;
 230                         uint8_t         extra;
 231                 } gps_date;
 232                 struct {
 233                         uint16_t        d0;
 234                         uint16_t        d1;
 235                 } anon;
 236         } u;
 237 };
 238
 239 struct ao_log_mega {
 240         char                    type;                   /* 0 */
 241         uint8_t                 csum;                   /* 1 */
 242         uint16_t                tick;                   /* 2 */
 243         union {                                         /* 4 */
 244                 /* AO_LOG_FLIGHT */
 245                 struct {
 246                         uint16_t        flight;                 /* 4 */
 247                         int16_t         ground_accel;           /* 6 */
 248                         uint32_t        ground_pres;            /* 8 */
 249                         int16_t         ground_accel_along;     /* 12 */
 250                         int16_t         ground_accel_across;    /* 14 */
 251                         int16_t         ground_accel_through;   /* 16 */
 252                         int16_t         pad_18;                 /* 18 */
 253                         int32_t         ground_roll;            /* 20 */
 254                         int32_t         ground_pitch;           /* 24 */
 255                         int32_t         ground_yaw;             /* 28 */
 256                 } flight;                                       /* 32 */
 257                 struct {
 258                         uint16_t        flight;                 /* 4 */
 259                         int16_t         ground_accel;           /* 6 */
 260                         uint32_t        ground_pres;            /* 8 */
 261                         int16_t         ground_accel_along;     /* 12 */
 262                         int16_t         ground_accel_across;    /* 14 */
 263                         int16_t         ground_accel_through;   /* 16 */
 264                         int16_t         ground_roll;            /* 18 */
 265                         int16_t         ground_pitch;           /* 20 */
 266                         int16_t         ground_yaw;             /* 22 */
 267                 } flight_old;                                   /* 24 */
 268                 /* AO_LOG_STATE */
 269                 struct {
 270                         uint16_t        state;
 271                         uint16_t        reason;
 272                 } state;
 273                 /* AO_LOG_SENSOR */
 274                 struct {
 275                         uint32_t        pres;           /* 4 */
 276                         uint32_t        temp;           /* 8 */
 277                         int16_t         accel_x;        /* 12 */
 278                         int16_t         accel_y;        /* 14 */
 279                         int16_t         accel_z;        /* 16 */
 280                         int16_t         gyro_x;         /* 18 */
 281                         int16_t         gyro_y;         /* 20 */
 282                         int16_t         gyro_z;         /* 22 */
 283                         int16_t         mag_x;          /* 24 */
 284                         int16_t         mag_z;          /* 26 */
 285                         int16_t         mag_y;          /* 28 */
 286                         int16_t         accel;          /* 30 */
 287                 } sensor;       /* 32 */
 288                 /* AO_LOG_TEMP_VOLT */
 289                 struct {
 290                         int16_t         v_batt;         /* 4 */
 291                         int16_t         v_pbatt;        /* 6 */
 292                         int16_t         n_sense;        /* 8 */
 293                         int16_t         sense[10];      /* 10 */
 294                         uint16_t        pyro;           /* 30 */
 295                 } volt;                                 /* 32 */
 296                 /* AO_LOG_GPS_TIME */
 297                 struct {
 298                         int32_t         latitude;       /* 4 */
 299                         int32_t         longitude;      /* 8 */
 300                         uint16_t        altitude_low;   /* 12 */
 301                         uint8_t         hour;           /* 14 */
 302                         uint8_t         minute;         /* 15 */
 303                         uint8_t         second;         /* 16 */
 304                         uint8_t         flags;          /* 17 */
 305                         uint8_t         year;           /* 18 */
 306                         uint8_t         month;          /* 19 */
 307                         uint8_t         day;            /* 20 */
 308                         uint8_t         course;         /* 21 */
 309                         uint16_t        ground_speed;   /* 22 */
 310                         int16_t         climb_rate;     /* 24 */
 311                         uint8_t         pdop;           /* 26 */
 312                         uint8_t         hdop;           /* 27 */
 313                         uint8_t         vdop;           /* 28 */
 314                         uint8_t         mode;           /* 29 */
 315                         int16_t         altitude_high;  /* 30 */
 316                 } gps;  /* 32 */
 317                 /* AO_LOG_GPS_SAT */
 318                 struct {
 319                         uint16_t        channels;       /* 4 */
 320                         struct {
 321                                 uint8_t svid;
 322                                 uint8_t c_n;
 323                         } sats[12];                     /* 6 */
 324                 } gps_sat;                              /* 30 */
 325         } u;
 326 };
 327
 328 #define AO_LOG_MEGA_GPS_ALTITUDE(l)     ((int32_t) ((l)->u.gps.altitude_high << 16) | ((l)->u.gps.altitude_low))
 329 #define AO_LOG_MEGA_SET_GPS_ALTITUDE(l,a)       (((l)->u.gps.mode |= AO_GPS_MODE_ALTITUDE_24), \
 330                                                  ((l)->u.gps.altitude_high = (a) >> 16), \
 331                                                  (l)->u.gps.altitude_low = (a))
 332
 333 struct ao_log_firetwo {
 334         char                    type;                   /* 0 */
 335         uint8_t                 csum;                   /* 1 */
 336         uint16_t                tick;                   /* 2 */
 337         union {                                         /* 4 */
 338                 /* AO_LOG_FLIGHT */
 339                 struct {
 340                         uint16_t        flight;         /* 4 */
 341                 } flight;       /* 6 */
 342                 /* AO_LOG_STATE */
 343                 struct {
 344                         uint16_t        state;          /* 4 */
 345                         uint16_t        reason;         /* 6 */
 346                 } state;        /* 8 */
 347                 /* AO_LOG_SENSOR */
 348                 struct {
 349                         uint16_t        pressure;       /* 4 */
 350                         uint16_t        thrust;         /* 6 */
 351                         uint16_t        thermistor[4];  /* 8 */
 352                 } sensor;       /* 24 */
 353                 uint8_t         align[28];              /* 4 */
 354         } u;    /* 32 */
 355 };
 356
 357 struct ao_log_telestatic {
 358         char                    type;                   /* 0 */
 359         uint8_t                 csum;                   /* 1 */
 360         uint16_t                tick;                   /* 2 */
 361         union {                                         /* 4 */
 362                 /* AO_LOG_FLIGHT */
 363                 struct {
 364                         uint16_t        flight;         /* 4 */
 365                 } flight;       /* 6 */
 366                 /* AO_LOG_STATE */
 367                 struct {
 368                         uint16_t        state;          /* 4 */
 369                         uint16_t        reason;         /* 6 */
 370                 } state;        /* 8 */
 371                 /* AO_LOG_SENSOR */
 372                 struct {
 373                         uint32_t        pressure;       /* 4 */
 374                         uint32_t        pressure2;      /* 8 */
 375                         uint32_t        thrust;         /* 12 */
 376                         uint32_t        mass;           /* 16 */
 377                         uint16_t        t_low;          /* 20 */
 378                         uint16_t        t_high[4];      /* 22 */
 379                 } sensor;       /* 30 */
 380                 uint8_t         align[28];              /* 4 */
 381         } u;    /* 32 */
 382 };
 383
 384 struct ao_log_metrum {
 385         char                    type;                   /* 0 */
 386         uint8_t                 csum;                   /* 1 */
 387         uint16_t                tick;                   /* 2 */
 388         union {                                         /* 4 */
 389                 /* AO_LOG_FLIGHT */
 390                 struct {
 391                         uint16_t        flight;         /* 4 */
 392                         int16_t         ground_accel;   /* 6 */
 393                         uint32_t        ground_pres;    /* 8 */
 394                         uint32_t        ground_temp;    /* 12 */
 395                 } flight;       /* 16 */
 396                 /* AO_LOG_STATE */
 397                 struct {
 398                         uint16_t        state;          /* 4 */
 399                         uint16_t        reason;         /* 6 */
 400                 } state;        /* 8 */
 401                 /* AO_LOG_SENSOR */
 402                 struct {
 403                         uint32_t        pres;           /* 4 */
 404                         uint32_t        temp;           /* 8 */
 405                         int16_t         accel;          /* 12 */
 406                 } sensor;       /* 14 */
 407                 /* AO_LOG_TEMP_VOLT */
 408                 struct {
 409                         int16_t         v_batt;         /* 4 */
 410                         int16_t         sense_a;        /* 6 */
 411                         int16_t         sense_m;        /* 8 */
 412                 } volt;         /* 10 */
 413                 /* AO_LOG_GPS_POS */
 414                 struct {
 415                         int32_t         latitude;       /* 4 */
 416                         int32_t         longitude;      /* 8 */
 417                         uint16_t        altitude_low;   /* 12 */
 418                         int16_t         altitude_high;  /* 14 */
 419                 } gps;          /* 16 */
 420                 /* AO_LOG_GPS_TIME */
 421                 struct {
 422                         uint8_t         hour;           /* 4 */
 423                         uint8_t         minute;         /* 5 */
 424                         uint8_t         second;         /* 6 */
 425                         uint8_t         flags;          /* 7 */
 426                         uint8_t         year;           /* 8 */
 427                         uint8_t         month;          /* 9 */
 428                         uint8_t         day;            /* 10 */
 429                         uint8_t         pdop;           /* 11 */
 430                 } gps_time;     /* 12 */
 431                 /* AO_LOG_GPS_SAT (up to three packets) */
 432                 struct {
 433                         uint8_t channels;               /* 4 */
 434                         uint8_t more;                   /* 5 */
 435                         struct {
 436                                 uint8_t svid;
 437                                 uint8_t c_n;
 438                         } sats[4];                      /* 6 */
 439                 } gps_sat;                              /* 14 */
 440                 uint8_t         raw[12];                /* 4 */
 441         } u;    /* 16 */
 442 };
 443
 444 struct ao_log_mini {
 445         char            type;                           /* 0 */
 446         uint8_t         csum;                           /* 1 */
 447         uint16_t        tick;                           /* 2 */
 448         union {                                         /* 4 */
 449                 /* AO_LOG_FLIGHT */
 450                 struct {
 451                         uint16_t        flight;         /* 4 */
 452                         uint16_t        r6;
 453                         uint32_t        ground_pres;    /* 8 */
 454                 } flight;
 455                 /* AO_LOG_STATE */
 456                 struct {
 457                         uint16_t        state;          /* 4 */
 458                         uint16_t        reason;         /* 6 */
 459                 } state;
 460                 /* AO_LOG_SENSOR */
 461                 struct {
 462                         uint8_t         pres[3];        /* 4 */
 463                         uint8_t         temp[3];        /* 7 */
 464                         int16_t         sense_a;        /* 10 */
 465                         int16_t         sense_m;        /* 12 */
 466                         int16_t         v_batt;         /* 14 */
 467                 } sensor;                               /* 16 */
 468         } u;                                            /* 16 */
 469 };                                                      /* 16 */
 470
 471 #define ao_log_pack24(dst,value) do {           \
 472                 (dst)[0] = (value);             \
 473                 (dst)[1] = (value) >> 8;        \
 474                 (dst)[2] = (value) >> 16;       \
 475         } while (0)
 476
 477 struct ao_log_gps {
 478         char                    type;                   /* 0 */
 479         uint8_t                 csum;                   /* 1 */
 480         uint16_t                tick;                   /* 2 */
 481         union {                                         /* 4 */
 482                 /* AO_LOG_FLIGHT */
 483                 struct {
 484                         uint16_t        flight;                 /* 4 */
 485                         int16_t         start_altitude;         /* 6 */
 486                         int32_t         start_latitude;         /* 8 */
 487                         int32_t         start_longitude;        /* 12 */
 488                 } flight;                                       /* 16 */
 489                 /* AO_LOG_GPS_TIME */
 490                 struct {
 491                         int32_t         latitude;       /* 4 */
 492                         int32_t         longitude;      /* 8 */
 493                         uint16_t        altitude_low;   /* 12 */
 494                         uint8_t         hour;           /* 14 */
 495                         uint8_t         minute;         /* 15 */
 496                         uint8_t         second;         /* 16 */
 497                         uint8_t         flags;          /* 17 */
 498                         uint8_t         year;           /* 18 */
 499                         uint8_t         month;          /* 19 */
 500                         uint8_t         day;            /* 20 */
 501                         uint8_t         course;         /* 21 */
 502                         uint16_t        ground_speed;   /* 22 */
 503                         int16_t         climb_rate;     /* 24 */
 504                         uint8_t         pdop;           /* 26 */
 505                         uint8_t         hdop;           /* 27 */
 506                         uint8_t         vdop;           /* 28 */
 507                         uint8_t         mode;           /* 29 */
 508                         int16_t         altitude_high;  /* 30 */
 509                 } gps;  /* 31 */
 510                 /* AO_LOG_GPS_SAT */
 511                 struct {
 512                         uint16_t        channels;       /* 4 */
 513                         struct {
 514                                 uint8_t svid;
 515                                 uint8_t c_n;
 516                         } sats[12];                     /* 6 */
 517                 } gps_sat;                              /* 30 */
 518         } u;
 519 };
 520
 521 struct ao_log_motor {
 522         char                    type;                   /* 0 */
 523         uint8_t                 csum;                   /* 1 */
 524         uint16_t                tick;                   /* 2 */
 525         union {                                         /* 4 */
 526                 /* AO_LOG_FLIGHT */
 527                 struct {
 528                         uint16_t        flight;                 /* 4 */
 529                         int16_t         ground_accel;           /* 6 */
 530                         int16_t         ground_accel_along;     /* 8 */
 531                         int16_t         ground_accel_across;    /* 10 */
 532                         int16_t         ground_accel_through;   /* 12 */
 533                         int16_t         ground_motor_pressure;  /* 14 */
 534                 } flight;                                       /* 16 */
 535                 /* AO_LOG_STATE */
 536                 struct {
 537                         uint16_t        state;                  /* 4 */
 538                         uint16_t        reason;                 /* 6 */
 539                 } state;
 540                 /* AO_LOG_SENSOR */
 541                 struct {
 542                         uint16_t        pressure;               /* 4 */
 543                         uint16_t        v_batt;                 /* 6 */
 544                         int16_t         accel;                  /* 8 */
 545                         int16_t         accel_across;           /* 10 */
 546                         int16_t         accel_along;            /* 12 */
 547                         int16_t         accel_through;          /* 14 */
 548                 } sensor;                                       /* 16 */
 549         } u;
 550 };
 551
 552 struct ao_eeprom {
 553         struct ao_config        config;
 554         struct ao_ms5607_prom   ms5607_prom;
 555         int                     log_format;
 556         uint16_t                serial_number;
 557         uint8_t                 *data;
 558         uint32_t                len;
 559 };
 560
 561 struct ao_eeprom *ao_eeprom_read(FILE *file);
 562
 563 struct ao_eeprom *ao_eeprom_read_old(FILE *file);
 564
 565 void ao_eeprom_free_data(struct ao_eeprom *ao_eeprom);
 566
 567 #endif /* _AO_EEPROM_READ_H_ */