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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_NONE              127     /* No log at all */
  50
  51 enum ao_pyro_flag {
  52         ao_pyro_none                    = 0x00000000,
  53
  54         ao_pyro_accel_less              = 0x00000001,
  55         ao_pyro_accel_greater           = 0x00000002,
  56
  57         ao_pyro_speed_less              = 0x00000004,
  58         ao_pyro_speed_greater           = 0x00000008,
  59
  60         ao_pyro_height_less             = 0x00000010,
  61         ao_pyro_height_greater          = 0x00000020,
  62
  63         ao_pyro_orient_less             = 0x00000040,
  64         ao_pyro_orient_greater          = 0x00000080,
  65
  66         ao_pyro_time_less               = 0x00000100,
  67         ao_pyro_time_greater            = 0x00000200,
  68
  69         ao_pyro_ascending               = 0x00000400,
  70         ao_pyro_descending              = 0x00000800,
  71
  72         ao_pyro_after_motor             = 0x00001000,
  73
  74         ao_pyro_delay                   = 0x00002000,
  75
  76         ao_pyro_state_less              = 0x00004000,
  77         ao_pyro_state_greater_or_equal  = 0x00008000,
  78 };
  79
  80 struct ao_pyro {
  81         enum ao_pyro_flag       flags;
  82         int16_t                 accel_less, accel_greater;
  83         int16_t                 speed_less, speed_greater;
  84         int16_t                 height_less, height_greater;
  85         int16_t                 orient_less, orient_greater;
  86         int16_t                 time_less, time_greater;
  87         int16_t                 delay;
  88         uint8_t                 state_less, state_greater_or_equal;
  89         int16_t                 motor;
  90         uint16_t                delay_done;
  91         uint8_t                 _unused;        /* was 'fired' */
  92 };
  93
  94 struct ao_config {
  95         uint8_t         major;
  96         uint8_t         minor;
  97         uint16_t        main_deploy;
  98         int16_t         accel_plus_g;           /* changed for minor version 2 */
  99         uint8_t         _legacy_radio_channel;
 100         char            callsign[AO_MAX_CALLSIGN + 1];
 101         uint8_t         apogee_delay;           /* minor version 1 */
 102         int16_t         accel_minus_g;          /* minor version 2 */
 103         uint32_t        radio_cal;              /* minor version 3 */
 104         uint32_t        flight_log_max;         /* minor version 4 */
 105         uint8_t         ignite_mode;            /* minor version 5 */
 106         uint8_t         pad_orientation;        /* minor version 6 */
 107         uint32_t        radio_setting;          /* minor version 7 */
 108         uint8_t         radio_enable;           /* minor version 8 */
 109         uint8_t         aes_key[AO_AES_LEN];    /* minor version 9 */
 110         uint32_t        frequency;              /* minor version 10 */
 111         uint16_t        apogee_lockout;         /* minor version 11 */
 112         struct ao_pyro  pyro[AO_PYRO_NUM];      /* minor version 12 */
 113         uint16_t        aprs_interval;          /* minor version 13 */
 114         uint8_t         radio_power;            /* minor version 14 */
 115         uint8_t         radio_amp;              /* minor version 14 */
 116         int16_t         accel_zero_along;       /* minor version 15 */
 117         int16_t         accel_zero_across;      /* minor version 15 */
 118         int16_t         accel_zero_through;     /* minor version 15 */
 119         uint8_t         mid_beep;               /* minor version 16 */
 120         uint16_t        tracker_motion;         /* minor version 17 */
 121         uint8_t         tracker_interval;       /* minor version 17 */
 122         uint16_t        pyro_time;              /* minor version 18 */
 123         uint8_t         aprs_ssid;              /* minor version 19 */
 124         uint8_t         radio_rate;             /* minor version 20 */
 125         uint32_t        send_frequency;         /* minor version 21 */
 126         uint8_t         aprs_format;            /* minor version 22 */
 127         uint8_t         pad_box;                /* minor version 22 */
 128         uint8_t         pad_idle;               /* minor version 23 */
 129 };
 130
 131 /*
 132  * ao_log_big.c
 133  */
 134
 135 /*
 136  * The data log is recorded in the eeprom as a sequence
 137  * of data packets.
 138  *
 139  * Each packet starts with a 4-byte header that has the
 140  * packet type, the packet checksum and the tick count. Then
 141  * they all contain 2 16 bit values which hold packet-specific
 142  * data.
 143  *
 144  * For each flight, the first packet
 145  * is FLIGHT packet, indicating the serial number of the
 146  * device and a unique number marking the number of flights
 147  * recorded by this device.
 148  *
 149  * During flight, data from the accelerometer and barometer
 150  * are recorded in SENSOR packets, using the raw 16-bit values
 151  * read from the A/D converter.
 152  *
 153  * Also during flight, but at a lower rate, the deployment
 154  * sensors are recorded in DEPLOY packets. The goal here is to
 155  * detect failure in the deployment circuits.
 156  *
 157  * STATE packets hold state transitions as the flight computer
 158  * transitions through different stages of the flight.
 159  */
 160 #define AO_LOG_FLIGHT           'F'
 161 #define AO_LOG_SENSOR           'A'
 162 #define AO_LOG_TEMP_VOLT        'T'
 163 #define AO_LOG_DEPLOY           'D'
 164 #define AO_LOG_STATE            'S'
 165 #define AO_LOG_GPS_TIME         'G'
 166 #define AO_LOG_GPS_LAT          'N'
 167 #define AO_LOG_GPS_LON          'W'
 168 #define AO_LOG_GPS_ALT          'H'
 169 #define AO_LOG_GPS_SAT          'V'
 170 #define AO_LOG_GPS_DATE         'Y'
 171 #define AO_LOG_GPS_POS          'P'
 172
 173 #define AO_LOG_POS_NONE         (~0UL)
 174
 175 /* Common header in all log formats */
 176 struct ao_log_header {
 177         char                    type;                           /* 0 */
 178         uint8_t                 csum;                           /* 1 */
 179         uint16_t                tick;                           /* 2 */
 180 };
 181
 182 struct ao_log_record {
 183         char                    type;                           /* 0 */
 184         uint8_t                 csum;                           /* 1 */
 185         uint16_t                tick;                           /* 2 */
 186         union {
 187                 struct {
 188                         int16_t         ground_accel;           /* 4 */
 189                         uint16_t        flight;                 /* 6 */
 190                 } flight;
 191                 struct {
 192                         int16_t         accel;                  /* 4 */
 193                         int16_t         pres;                   /* 6 */
 194                 } sensor;
 195                 struct {
 196                         int16_t         temp;
 197                         int16_t         v_batt;
 198                 } temp_volt;
 199                 struct {
 200                         int16_t         drogue;
 201                         int16_t         main;
 202                 } deploy;
 203                 struct {
 204                         uint16_t        state;
 205                         uint16_t        reason;
 206                 } state;
 207                 struct {
 208                         uint8_t         hour;
 209                         uint8_t         minute;
 210                         uint8_t         second;
 211                         uint8_t         flags;
 212                 } gps_time;
 213                 int32_t         gps_latitude;
 214                 int32_t         gps_longitude;
 215                 struct {
 216                         uint16_t        altitude_low;
 217                         int16_t         altitude_high;
 218                 } gps_altitude;
 219                 struct {
 220                         uint16_t        svid;
 221                         uint8_t         unused;
 222                         uint8_t         c_n;
 223                 } gps_sat;
 224                 struct {
 225                         uint8_t         year;
 226                         uint8_t         month;
 227                         uint8_t         day;
 228                         uint8_t         extra;
 229                 } gps_date;
 230                 struct {
 231                         uint16_t        d0;
 232                         uint16_t        d1;
 233                 } anon;
 234         } u;
 235 };
 236
 237 struct ao_log_mega {
 238         char                    type;                   /* 0 */
 239         uint8_t                 csum;                   /* 1 */
 240         uint16_t                tick;                   /* 2 */
 241         union {                                         /* 4 */
 242                 /* AO_LOG_FLIGHT */
 243                 struct {
 244                         uint16_t        flight;                 /* 4 */
 245                         int16_t         ground_accel;           /* 6 */
 246                         uint32_t        ground_pres;            /* 8 */
 247                         int16_t         ground_accel_along;     /* 12 */
 248                         int16_t         ground_accel_across;    /* 14 */
 249                         int16_t         ground_accel_through;   /* 16 */
 250                         int16_t         pad_18;                 /* 18 */
 251                         int32_t         ground_roll;            /* 20 */
 252                         int32_t         ground_pitch;           /* 24 */
 253                         int32_t         ground_yaw;             /* 28 */
 254                 } flight;                                       /* 32 */
 255                 struct {
 256                         uint16_t        flight;                 /* 4 */
 257                         int16_t         ground_accel;           /* 6 */
 258                         uint32_t        ground_pres;            /* 8 */
 259                         int16_t         ground_accel_along;     /* 12 */
 260                         int16_t         ground_accel_across;    /* 14 */
 261                         int16_t         ground_accel_through;   /* 16 */
 262                         int16_t         ground_roll;            /* 18 */
 263                         int16_t         ground_pitch;           /* 20 */
 264                         int16_t         ground_yaw;             /* 22 */
 265                 } flight_old;                                   /* 24 */
 266                 /* AO_LOG_STATE */
 267                 struct {
 268                         uint16_t        state;
 269                         uint16_t        reason;
 270                 } state;
 271                 /* AO_LOG_SENSOR */
 272                 struct {
 273                         uint32_t        pres;           /* 4 */
 274                         uint32_t        temp;           /* 8 */
 275                         int16_t         accel_x;        /* 12 */
 276                         int16_t         accel_y;        /* 14 */
 277                         int16_t         accel_z;        /* 16 */
 278                         int16_t         gyro_x;         /* 18 */
 279                         int16_t         gyro_y;         /* 20 */
 280                         int16_t         gyro_z;         /* 22 */
 281                         int16_t         mag_x;          /* 24 */
 282                         int16_t         mag_z;          /* 26 */
 283                         int16_t         mag_y;          /* 28 */
 284                         int16_t         accel;          /* 30 */
 285                 } sensor;       /* 32 */
 286                 /* AO_LOG_TEMP_VOLT */
 287                 struct {
 288                         int16_t         v_batt;         /* 4 */
 289                         int16_t         v_pbatt;        /* 6 */
 290                         int16_t         n_sense;        /* 8 */
 291                         int16_t         sense[10];      /* 10 */
 292                         uint16_t        pyro;           /* 30 */
 293                 } volt;                                 /* 32 */
 294                 /* AO_LOG_GPS_TIME */
 295                 struct {
 296                         int32_t         latitude;       /* 4 */
 297                         int32_t         longitude;      /* 8 */
 298                         uint16_t        altitude_low;   /* 12 */
 299                         uint8_t         hour;           /* 14 */
 300                         uint8_t         minute;         /* 15 */
 301                         uint8_t         second;         /* 16 */
 302                         uint8_t         flags;          /* 17 */
 303                         uint8_t         year;           /* 18 */
 304                         uint8_t         month;          /* 19 */
 305                         uint8_t         day;            /* 20 */
 306                         uint8_t         course;         /* 21 */
 307                         uint16_t        ground_speed;   /* 22 */
 308                         int16_t         climb_rate;     /* 24 */
 309                         uint8_t         pdop;           /* 26 */
 310                         uint8_t         hdop;           /* 27 */
 311                         uint8_t         vdop;           /* 28 */
 312                         uint8_t         mode;           /* 29 */
 313                         int16_t         altitude_high;  /* 30 */
 314                 } gps;  /* 32 */
 315                 /* AO_LOG_GPS_SAT */
 316                 struct {
 317                         uint16_t        channels;       /* 4 */
 318                         struct {
 319                                 uint8_t svid;
 320                                 uint8_t c_n;
 321                         } sats[12];                     /* 6 */
 322                 } gps_sat;                              /* 30 */
 323         } u;
 324 };
 325
 326 #define AO_LOG_MEGA_GPS_ALTITUDE(l)     ((int32_t) ((l)->u.gps.altitude_high << 16) | ((l)->u.gps.altitude_low))
 327 #define AO_LOG_MEGA_SET_GPS_ALTITUDE(l,a)       (((l)->u.gps.mode |= AO_GPS_MODE_ALTITUDE_24), \
 328                                                  ((l)->u.gps.altitude_high = (a) >> 16), \
 329                                                  (l)->u.gps.altitude_low = (a))
 330
 331 struct ao_log_firetwo {
 332         char                    type;                   /* 0 */
 333         uint8_t                 csum;                   /* 1 */
 334         uint16_t                tick;                   /* 2 */
 335         union {                                         /* 4 */
 336                 /* AO_LOG_FLIGHT */
 337                 struct {
 338                         uint16_t        flight;         /* 4 */
 339                 } flight;       /* 6 */
 340                 /* AO_LOG_STATE */
 341                 struct {
 342                         uint16_t        state;          /* 4 */
 343                         uint16_t        reason;         /* 6 */
 344                 } state;        /* 8 */
 345                 /* AO_LOG_SENSOR */
 346                 struct {
 347                         uint16_t        pressure;       /* 4 */
 348                         uint16_t        thrust;         /* 6 */
 349                         uint16_t        thermistor[4];  /* 8 */
 350                 } sensor;       /* 24 */
 351                 uint8_t         align[28];              /* 4 */
 352         } u;    /* 32 */
 353 };
 354
 355 struct ao_log_telestatic {
 356         char                    type;                   /* 0 */
 357         uint8_t                 csum;                   /* 1 */
 358         uint16_t                tick;                   /* 2 */
 359         union {                                         /* 4 */
 360                 /* AO_LOG_FLIGHT */
 361                 struct {
 362                         uint16_t        flight;         /* 4 */
 363                 } flight;       /* 6 */
 364                 /* AO_LOG_STATE */
 365                 struct {
 366                         uint16_t        state;          /* 4 */
 367                         uint16_t        reason;         /* 6 */
 368                 } state;        /* 8 */
 369                 /* AO_LOG_SENSOR */
 370                 struct {
 371                         uint32_t        pressure;       /* 4 */
 372                         uint32_t        pressure2;      /* 8 */
 373                         uint32_t        thrust;         /* 12 */
 374                         uint32_t        mass;           /* 16 */
 375                         uint16_t        t_low;          /* 20 */
 376                         uint16_t        t_high[4];      /* 22 */
 377                 } sensor;       /* 30 */
 378                 uint8_t         align[28];              /* 4 */
 379         } u;    /* 32 */
 380 };
 381
 382 struct ao_log_metrum {
 383         char                    type;                   /* 0 */
 384         uint8_t                 csum;                   /* 1 */
 385         uint16_t                tick;                   /* 2 */
 386         union {                                         /* 4 */
 387                 /* AO_LOG_FLIGHT */
 388                 struct {
 389                         uint16_t        flight;         /* 4 */
 390                         int16_t         ground_accel;   /* 6 */
 391                         uint32_t        ground_pres;    /* 8 */
 392                         uint32_t        ground_temp;    /* 12 */
 393                 } flight;       /* 16 */
 394                 /* AO_LOG_STATE */
 395                 struct {
 396                         uint16_t        state;          /* 4 */
 397                         uint16_t        reason;         /* 6 */
 398                 } state;        /* 8 */
 399                 /* AO_LOG_SENSOR */
 400                 struct {
 401                         uint32_t        pres;           /* 4 */
 402                         uint32_t        temp;           /* 8 */
 403                         int16_t         accel;          /* 12 */
 404                 } sensor;       /* 14 */
 405                 /* AO_LOG_TEMP_VOLT */
 406                 struct {
 407                         int16_t         v_batt;         /* 4 */
 408                         int16_t         sense_a;        /* 6 */
 409                         int16_t         sense_m;        /* 8 */
 410                 } volt;         /* 10 */
 411                 /* AO_LOG_GPS_POS */
 412                 struct {
 413                         int32_t         latitude;       /* 4 */
 414                         int32_t         longitude;      /* 8 */
 415                         uint16_t        altitude_low;   /* 12 */
 416                         int16_t         altitude_high;  /* 14 */
 417                 } gps;          /* 16 */
 418                 /* AO_LOG_GPS_TIME */
 419                 struct {
 420                         uint8_t         hour;           /* 4 */
 421                         uint8_t         minute;         /* 5 */
 422                         uint8_t         second;         /* 6 */
 423                         uint8_t         flags;          /* 7 */
 424                         uint8_t         year;           /* 8 */
 425                         uint8_t         month;          /* 9 */
 426                         uint8_t         day;            /* 10 */
 427                         uint8_t         pdop;           /* 11 */
 428                 } gps_time;     /* 12 */
 429                 /* AO_LOG_GPS_SAT (up to three packets) */
 430                 struct {
 431                         uint8_t channels;               /* 4 */
 432                         uint8_t more;                   /* 5 */
 433                         struct {
 434                                 uint8_t svid;
 435                                 uint8_t c_n;
 436                         } sats[4];                      /* 6 */
 437                 } gps_sat;                              /* 14 */
 438                 uint8_t         raw[12];                /* 4 */
 439         } u;    /* 16 */
 440 };
 441
 442 struct ao_log_mini {
 443         char            type;                           /* 0 */
 444         uint8_t         csum;                           /* 1 */
 445         uint16_t        tick;                           /* 2 */
 446         union {                                         /* 4 */
 447                 /* AO_LOG_FLIGHT */
 448                 struct {
 449                         uint16_t        flight;         /* 4 */
 450                         uint16_t        r6;
 451                         uint32_t        ground_pres;    /* 8 */
 452                 } flight;
 453                 /* AO_LOG_STATE */
 454                 struct {
 455                         uint16_t        state;          /* 4 */
 456                         uint16_t        reason;         /* 6 */
 457                 } state;
 458                 /* AO_LOG_SENSOR */
 459                 struct {
 460                         uint8_t         pres[3];        /* 4 */
 461                         uint8_t         temp[3];        /* 7 */
 462                         int16_t         sense_a;        /* 10 */
 463                         int16_t         sense_m;        /* 12 */
 464                         int16_t         v_batt;         /* 14 */
 465                 } sensor;                               /* 16 */
 466         } u;                                            /* 16 */
 467 };                                                      /* 16 */
 468
 469 struct ao_log_motor {
 470         char                    type;                   /* 0 */
 471         uint8_t                 csum;                   /* 1 */
 472         uint16_t                tick;                   /* 2 */
 473         union {                                         /* 4 */
 474                 /* AO_LOG_FLIGHT */
 475                 struct {
 476                         uint16_t        flight;                 /* 4 */
 477                         int16_t         ground_accel;           /* 6 */
 478                         int16_t         ground_accel_along;     /* 8 */
 479                         int16_t         ground_accel_across;    /* 10 */
 480                         int16_t         ground_accel_through;   /* 12 */
 481                         int16_t         ground_motor_pressure;  /* 14 */
 482                 } flight;                                       /* 16 */
 483                 /* AO_LOG_STATE */
 484                 struct {
 485                         uint16_t        state;                  /* 4 */
 486                         uint16_t        reason;                 /* 6 */
 487                 } state;
 488                 /* AO_LOG_SENSOR */
 489                 struct {
 490                         uint16_t        pressure;               /* 4 */
 491                         uint16_t        v_batt;                 /* 6 */
 492                         int16_t         accel;                  /* 8 */
 493                         int16_t         accel_across;           /* 10 */
 494                         int16_t         accel_along;            /* 12 */
 495                         int16_t         accel_through;          /* 14 */
 496                 } sensor;                                       /* 16 */
 497         } u;
 498 };
 499
 500 #define ao_log_pack24(dst,value) do {           \
 501                 (dst)[0] = (value);             \
 502                 (dst)[1] = (value) >> 8;        \
 503                 (dst)[2] = (value) >> 16;       \
 504         } while (0)
 505
 506 struct ao_log_gps {
 507         char                    type;                   /* 0 */
 508         uint8_t                 csum;                   /* 1 */
 509         uint16_t                tick;                   /* 2 */
 510         union {                                         /* 4 */
 511                 /* AO_LOG_FLIGHT */
 512                 struct {
 513                         uint16_t        flight;                 /* 4 */
 514                         int16_t         start_altitude;         /* 6 */
 515                         int32_t         start_latitude;         /* 8 */
 516                         int32_t         start_longitude;        /* 12 */
 517                 } flight;                                       /* 16 */
 518                 /* AO_LOG_GPS_TIME */
 519                 struct {
 520                         int32_t         latitude;       /* 4 */
 521                         int32_t         longitude;      /* 8 */
 522                         uint16_t        altitude_low;   /* 12 */
 523                         uint8_t         hour;           /* 14 */
 524                         uint8_t         minute;         /* 15 */
 525                         uint8_t         second;         /* 16 */
 526                         uint8_t         flags;          /* 17 */
 527                         uint8_t         year;           /* 18 */
 528                         uint8_t         month;          /* 19 */
 529                         uint8_t         day;            /* 20 */
 530                         uint8_t         course;         /* 21 */
 531                         uint16_t        ground_speed;   /* 22 */
 532                         int16_t         climb_rate;     /* 24 */
 533                         uint8_t         pdop;           /* 26 */
 534                         uint8_t         hdop;           /* 27 */
 535                         uint8_t         vdop;           /* 28 */
 536                         uint8_t         mode;           /* 29 */
 537                         int16_t         altitude_high;  /* 30 */
 538                 } gps;  /* 31 */
 539                 /* AO_LOG_GPS_SAT */
 540                 struct {
 541                         uint16_t        channels;       /* 4 */
 542                         struct {
 543                                 uint8_t svid;
 544                                 uint8_t c_n;
 545                         } sats[12];                     /* 6 */
 546                 } gps_sat;                              /* 30 */
 547         } u;
 548 };
 549
 550 struct ao_log_motor {
 551         char                    type;                   /* 0 */
 552         uint8_t                 csum;                   /* 1 */
 553         uint16_t                tick;                   /* 2 */
 554         union {                                         /* 4 */
 555                 /* AO_LOG_FLIGHT */
 556                 struct {
 557                         uint16_t        flight;                 /* 4 */
 558                         int16_t         ground_accel;           /* 6 */
 559                         int16_t         ground_accel_along;     /* 8 */
 560                         int16_t         ground_accel_across;    /* 10 */
 561                         int16_t         ground_accel_through;   /* 12 */
 562                         int16_t         ground_motor_pressure;  /* 14 */
 563                 } flight;                                       /* 16 */
 564                 /* AO_LOG_STATE */
 565                 struct {
 566                         uint16_t        state;                  /* 4 */
 567                         uint16_t        reason;                 /* 6 */
 568                 } state;
 569                 /* AO_LOG_SENSOR */
 570                 struct {
 571                         uint16_t        pressure;               /* 4 */
 572                         uint16_t        v_batt;                 /* 6 */
 573                         int16_t         accel;                  /* 8 */
 574                         int16_t         accel_across;           /* 10 */
 575                         int16_t         accel_along;            /* 12 */
 576                         int16_t         accel_through;          /* 14 */
 577                 } sensor;                                       /* 16 */
 578         } u;
 579 };
 580
 581 struct ao_eeprom {
 582         struct ao_config        config;
 583         struct ao_ms5607_prom   ms5607_prom;
 584         int                     log_format;
 585         uint16_t                serial_number;
 586         uint8_t                 *data;
 587         uint32_t                len;
 588 };
 589
 590 struct ao_eeprom *ao_eeprom_read(FILE *file);
 591
 592 struct ao_eeprom *ao_eeprom_read_old(FILE *file);
 593
 594 void ao_eeprom_free_data(struct ao_eeprom *ao_eeprom);
 595
 596 #endif /* _AO_EEPROM_READ_H_ */