src/main/msc/emfat_file.c

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 /*
  22  * Author: jflyper@github.com
  23  */
  24
  25 #include "platform.h"
  26 #include "common/utils.h"
  27 #include "common/printf.h"
  28
  29 #include "emfat.h"
  30 #include "emfat_file.h"
  31 #include "io/flashfs.h"
  32 #include "common/typeconversion.h"
  33
  34 #define FILESYSTEM_SIZE_MB 256
  35 #define HDR_BUF_SIZE 32
  36
  37 #define USE_EMFAT_AUTORUN
  38 #define USE_EMFAT_ICON
  39 #define USE_EMFAT_README
  40
  41 #ifdef USE_EMFAT_AUTORUN
  42 static const char autorun_file[] =
  43     "[autorun]\r\n"
  44     "icon=icon.ico\r\n"
  45     "label=INAV Onboard Flash\r\n" ;
  46 #define AUTORUN_SIZE (sizeof(autorun_file) - 1)
  47 #define EMFAT_INCR_AUTORUN 1
  48 #else
  49 #define EMFAT_INCR_AUTORUN 0
  50 #endif
  51
  52 #ifdef USE_EMFAT_README
  53 static const char readme_file[] =
  54     "inav_all.bbl: All log files concatenated\r\n"
  55     "inav_NNN.bbl: Individual log file\r\n\r\n"
  56     "Note that this file system is read-only\r\n";
  57
  58 #define README_SIZE  (sizeof(readme_file) - 1)
  59 #define EMFAT_INCR_README 1
  60 #else
  61 #define EMFAT_INCR_README 0
  62 #endif
  63
  64 #ifdef USE_EMFAT_ICON
  65 static const unsigned char icon_file[] =
  66 {
  67   0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x18, 0x18, 0x00, 0x00, 0x01, 0x00,
  68   0x20, 0x00, 0x88, 0x09, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x28, 0x00,
  69   0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x01, 0x00,
  70   0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x3d, 0x0b,
  71   0x00, 0x00, 0x3d, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  72   0x00, 0x00, 0xd2, 0x97, 0x2a, 0x0b, 0xce, 0x91, 0x26, 0x52, 0xce, 0x90,
  73   0x25, 0x6e, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90,
  74   0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90,
  75   0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90,
  76   0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90,
  77   0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90,
  78   0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xce, 0x90,
  79   0x25, 0x6d, 0xce, 0x90, 0x25, 0x6d, 0xcf, 0x91, 0x26, 0x44, 0xd5, 0x9d,
  80   0x2e, 0x04, 0xcc, 0x8d, 0x23, 0x5d, 0xcb, 0x8a, 0x21, 0xf0, 0xcb, 0x8a,
  81   0x20, 0xfd, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a,
  82   0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a,
  83   0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a,
  84   0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a,
  85   0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a,
  86   0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfc, 0xcb, 0x8a,
  87   0x20, 0xfc, 0xcb, 0x8a, 0x20, 0xfd, 0xcb, 0x8b, 0x21, 0xe0, 0xcd, 0x8e,
  88   0x23, 0x37, 0xcb, 0x8b, 0x21, 0x81, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b,
  89   0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b,
  90   0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b,
  91   0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b,
  92   0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b,
  93   0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b,
  94   0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b,
  95   0x21, 0xff, 0xcb, 0x8b, 0x21, 0xff, 0xcb, 0x8b, 0x21, 0xf9, 0xcb, 0x8b,
  96   0x21, 0x53, 0xcd, 0x8d, 0x23, 0x81, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d,
  97   0x23, 0xff, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d,
  98   0x23, 0xff, 0xcc, 0x8d, 0x22, 0xff, 0xcc, 0x8c, 0x20, 0xff, 0xcc, 0x8d,
  99   0x21, 0xff, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d,
 100   0x23, 0xff, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d,
 101   0x23, 0xff, 0xcc, 0x8c, 0x21, 0xff, 0xcc, 0x8c, 0x20, 0xff, 0xcc, 0x8d,
 102   0x22, 0xff, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d,
 103   0x23, 0xff, 0xcc, 0x8d, 0x23, 0xff, 0xcc, 0x8d, 0x23, 0xf8, 0xcc, 0x8d,
 104   0x23, 0x53, 0xce, 0x8f, 0x24, 0x81, 0xce, 0x8f, 0x24, 0xff, 0xce, 0x8f,
 105   0x24, 0xff, 0xce, 0x8f, 0x24, 0xff, 0xce, 0x8f, 0x24, 0xff, 0xcd, 0x8e,
 106   0x23, 0xff, 0xcf, 0x94, 0x33, 0xff, 0xd3, 0xa0, 0x4c, 0xff, 0xd2, 0x9c,
 107   0x44, 0xff, 0xcd, 0x90, 0x28, 0xff, 0xcd, 0x8f, 0x23, 0xff, 0xce, 0x8f,
 108   0x24, 0xff, 0xce, 0x8f, 0x24, 0xff, 0xcd, 0x8f, 0x23, 0xff, 0xcd, 0x90,
 109   0x28, 0xff, 0xd2, 0x9c, 0x44, 0xff, 0xd3, 0xa0, 0x4c, 0xff, 0xcf, 0x94,
 110   0x33, 0xff, 0xcd, 0x8e, 0x23, 0xff, 0xce, 0x8f, 0x24, 0xff, 0xce, 0x8f,
 111   0x24, 0xff, 0xce, 0x8f, 0x24, 0xff, 0xce, 0x8f, 0x24, 0xf8, 0xcd, 0x8f,
 112   0x24, 0x53, 0xcf, 0x91, 0x26, 0x81, 0xcf, 0x91, 0x26, 0xff, 0xcf, 0x91,
 113   0x26, 0xff, 0xcf, 0x91, 0x26, 0xff, 0xce, 0x90, 0x24, 0xff, 0xd7, 0xa7,
 114   0x58, 0xff, 0xe7, 0xca, 0x9e, 0xff, 0xe4, 0xc4, 0x8d, 0xff, 0xe6, 0xc8,
 115   0x97, 0xff, 0xe2, 0xc1, 0x8b, 0xff, 0xd0, 0x97, 0x34, 0xff, 0xce, 0x91,
 116   0x25, 0xff, 0xce, 0x91, 0x25, 0xff, 0xd0, 0x97, 0x34, 0xff, 0xe2, 0xc1,
 117   0x8b, 0xff, 0xe6, 0xc8, 0x97, 0xff, 0xe4, 0xc4, 0x8d, 0xff, 0xe7, 0xca,
 118   0x9e, 0xff, 0xd7, 0xa7, 0x58, 0xff, 0xce, 0x90, 0x24, 0xff, 0xcf, 0x91,
 119   0x26, 0xff, 0xcf, 0x91, 0x26, 0xff, 0xcf, 0x91, 0x26, 0xf8, 0xcf, 0x91,
 120   0x26, 0x53, 0xd0, 0x93, 0x27, 0x81, 0xd0, 0x93, 0x27, 0xff, 0xd0, 0x93,
 121   0x27, 0xff, 0xcf, 0x93, 0x26, 0xff, 0xd4, 0x9e, 0x3f, 0xff, 0xe9, 0xcd,
 122   0xa0, 0xff, 0xd7, 0xa3, 0x47, 0xff, 0xcf, 0x93, 0x29, 0xff, 0xd0, 0x95,
 123   0x2b, 0xff, 0xe1, 0xbb, 0x78, 0xff, 0xe2, 0xbe, 0x82, 0xff, 0xcf, 0x93,
 124   0x27, 0xff, 0xcf, 0x93, 0x27, 0xff, 0xe2, 0xbe, 0x82, 0xff, 0xe1, 0xbb,
 125   0x78, 0xff, 0xd0, 0x95, 0x2b, 0xff, 0xcf, 0x93, 0x29, 0xff, 0xd7, 0xa3,
 126   0x47, 0xff, 0xe9, 0xcd, 0xa0, 0xff, 0xd4, 0x9e, 0x3f, 0xff, 0xcf, 0x92,
 127   0x26, 0xff, 0xd0, 0x93, 0x27, 0xff, 0xd0, 0x93, 0x27, 0xf8, 0xd0, 0x93,
 128   0x27, 0x53, 0xd1, 0x95, 0x29, 0x81, 0xd1, 0x95, 0x29, 0xff, 0xd1, 0x95,
 129   0x29, 0xff, 0xd0, 0x93, 0x25, 0xff, 0xde, 0xb3, 0x68, 0xff, 0xe2, 0xbd,
 130   0x7c, 0xff, 0xd2, 0x99, 0x32, 0xff, 0xea, 0xd1, 0xaa, 0xff, 0xde, 0xb6,
 131   0x70, 0xff, 0xd3, 0x9b, 0x35, 0xff, 0xe8, 0xcd, 0x9c, 0xff, 0xd3, 0x9a,
 132   0x33, 0xff, 0xd3, 0x9a, 0x33, 0xff, 0xe8, 0xcd, 0x9c, 0xff, 0xd3, 0x9b,
 133   0x35, 0xff, 0xde, 0xb6, 0x70, 0xff, 0xea, 0xd1, 0xaa, 0xff, 0xd2, 0x99,
 134   0x32, 0xff, 0xe2, 0xbd, 0x7c, 0xff, 0xde, 0xb3, 0x68, 0xff, 0xd0, 0x93,
 135   0x25, 0xff, 0xd1, 0x95, 0x29, 0xff, 0xd1, 0x95, 0x29, 0xf8, 0xd1, 0x95,
 136   0x29, 0x53, 0xd2, 0x97, 0x2a, 0x81, 0xd2, 0x97, 0x2a, 0xff, 0xd2, 0x97,
 137   0x2a, 0xff, 0xd1, 0x95, 0x27, 0xff, 0xdf, 0xb5, 0x69, 0xff, 0xe2, 0xbe,
 138   0x7d, 0xff, 0xd3, 0x9b, 0x33, 0xff, 0xee, 0xd7, 0xad, 0xff, 0xed, 0xd8,
 139   0xb4, 0xff, 0xd7, 0xa4, 0x4a, 0xff, 0xe7, 0xca, 0x94, 0xff, 0xd4, 0x9e,
 140   0x3c, 0xff, 0xd4, 0x9e, 0x3c, 0xff, 0xe7, 0xca, 0x94, 0xff, 0xd7, 0xa4,
 141   0x4a, 0xff, 0xed, 0xd8, 0xb4, 0xff, 0xee, 0xd7, 0xad, 0xff, 0xd3, 0x9b,
 142   0x33, 0xff, 0xe2, 0xbe, 0x7d, 0xff, 0xdf, 0xb5, 0x69, 0xff, 0xd1, 0x95,
 143   0x27, 0xff, 0xd2, 0x97, 0x2a, 0xff, 0xd2, 0x97, 0x2a, 0xf8, 0xd2, 0x97,
 144   0x2a, 0x53, 0xd3, 0x99, 0x2c, 0x81, 0xd3, 0x99, 0x2c, 0xff, 0xd3, 0x99,
 145   0x2c, 0xff, 0xd2, 0x98, 0x2a, 0xff, 0xd7, 0xa4, 0x43, 0xff, 0xea, 0xd0,
 146   0xa2, 0xff, 0xd7, 0xa4, 0x4a, 0xff, 0xd2, 0x98, 0x2d, 0xff, 0xdf, 0xb6,
 147   0x6a, 0xff, 0xe8, 0xcc, 0x9c, 0xff, 0xdb, 0xad, 0x5a, 0xff, 0xe7, 0xcb,
 148   0x9c, 0xff, 0xe7, 0xcb, 0x9c, 0xff, 0xdb, 0xad, 0x5a, 0xff, 0xe8, 0xcc,
 149   0x9c, 0xff, 0xdf, 0xb6, 0x6a, 0xff, 0xd2, 0x98, 0x2d, 0xff, 0xd7, 0xa5,
 150   0x4a, 0xff, 0xea, 0xd0, 0xa2, 0xff, 0xd7, 0xa4, 0x43, 0xff, 0xd2, 0x98,
 151   0x2a, 0xff, 0xd3, 0x99, 0x2c, 0xff, 0xd3, 0x99, 0x2c, 0xf8, 0xd3, 0x99,
 152   0x2c, 0x53, 0xd4, 0x9a, 0x2d, 0x81, 0xd4, 0x9b, 0x2d, 0xff, 0xd4, 0x9b,
 153   0x2d, 0xff, 0xd4, 0x9a, 0x2d, 0xff, 0xd3, 0x9a, 0x2c, 0xff, 0xde, 0xb2,
 154   0x5d, 0xff, 0xe9, 0xcf, 0xa1, 0xff, 0xe5, 0xc6, 0x93, 0xff, 0xe0, 0xba,
 155   0x77, 0xff, 0xdb, 0xac, 0x53, 0xff, 0xe2, 0xbe, 0x7d, 0xff, 0xfd, 0xfc,
 156   0xfa, 0xff, 0xfd, 0xfc, 0xfa, 0xff, 0xe2, 0xbe, 0x7d, 0xff, 0xdb, 0xac,
 157   0x53, 0xff, 0xe0, 0xba, 0x77, 0xff, 0xe5, 0xc6, 0x93, 0xff, 0xe9, 0xcf,
 158   0xa1, 0xff, 0xde, 0xb2, 0x5d, 0xff, 0xd3, 0x9a, 0x2c, 0xff, 0xd4, 0x9b,
 159   0x2d, 0xff, 0xd4, 0x9b, 0x2d, 0xff, 0xd4, 0x9b, 0x2d, 0xf8, 0xd4, 0x9b,
 160   0x2d, 0x53, 0xd5, 0x9c, 0x2e, 0x81, 0xd5, 0x9c, 0x2e, 0xff, 0xd5, 0x9c,
 161   0x2e, 0xff, 0xd5, 0x9c, 0x2e, 0xff, 0xd5, 0x9c, 0x2e, 0xff, 0xd4, 0x9b,
 162   0x2d, 0xff, 0xd8, 0xa3, 0x3c, 0xff, 0xdd, 0xaf, 0x55, 0xff, 0xda, 0xa9,
 163   0x49, 0xff, 0xd7, 0xa2, 0x3e, 0xff, 0xf3, 0xe5, 0xcd, 0xff, 0xf6, 0xea,
 164   0xd1, 0xff, 0xf6, 0xea, 0xd1, 0xff, 0xf3, 0xe5, 0xcd, 0xff, 0xd7, 0xa2,
 165   0x3e, 0xff, 0xda, 0xa9, 0x49, 0xff, 0xdd, 0xaf, 0x55, 0xff, 0xd8, 0xa3,
 166   0x3c, 0xff, 0xd4, 0x9b, 0x2d, 0xff, 0xd5, 0x9c, 0x2e, 0xff, 0xd5, 0x9c,
 167   0x2e, 0xff, 0xd5, 0x9c, 0x2e, 0xff, 0xd5, 0x9c, 0x2e, 0xf8, 0xd5, 0x9c,
 168   0x2e, 0x53, 0xd6, 0x9e, 0x2f, 0x81, 0xd6, 0x9e, 0x2f, 0xff, 0xd6, 0x9e,
 169   0x2f, 0xff, 0xd6, 0x9e, 0x2f, 0xff, 0xd6, 0x9e, 0x2f, 0xff, 0xd6, 0x9e,
 170   0x2f, 0xff, 0xd5, 0x9d, 0x2d, 0xff, 0xd4, 0x9b, 0x2a, 0xff, 0xd4, 0x9b,
 171   0x28, 0xff, 0xe0, 0xb6, 0x66, 0xff, 0xf2, 0xe1, 0xc1, 0xff, 0xd9, 0xa6,
 172   0x40, 0xff, 0xd9, 0xa6, 0x40, 0xff, 0xf2, 0xe1, 0xc1, 0xff, 0xe0, 0xb6,
 173   0x66, 0xff, 0xd4, 0x9b, 0x28, 0xff, 0xd4, 0x9b, 0x2a, 0xff, 0xd5, 0x9d,
 174   0x2d, 0xff, 0xd6, 0x9e, 0x2f, 0xff, 0xd6, 0x9e, 0x2f, 0xff, 0xd6, 0x9e,
 175   0x2f, 0xff, 0xd6, 0x9e, 0x2f, 0xff, 0xd6, 0x9e, 0x2f, 0xf8, 0xd6, 0x9e,
 176   0x2f, 0x53, 0xd7, 0xa0, 0x31, 0x81, 0xd7, 0xa0, 0x31, 0xff, 0xd7, 0xa0,
 177   0x31, 0xff, 0xd7, 0xa0, 0x31, 0xff, 0xd6, 0xa0, 0x30, 0xff, 0xd6, 0x9f,
 178   0x31, 0xff, 0xda, 0xac, 0x54, 0xff, 0xe0, 0xba, 0x75, 0xff, 0xdc, 0xb1,
 179   0x5f, 0xff, 0xe1, 0xb9, 0x69, 0xff, 0xf0, 0xdd, 0xba, 0xff, 0xd6, 0xa1,
 180   0x37, 0xff, 0xd6, 0xa1, 0x37, 0xff, 0xf0, 0xdd, 0xba, 0xff, 0xe1, 0xb9,
 181   0x69, 0xff, 0xdc, 0xb1, 0x5f, 0xff, 0xe0, 0xba, 0x75, 0xff, 0xda, 0xac,
 182   0x54, 0xff, 0xd6, 0x9f, 0x31, 0xff, 0xd6, 0xa0, 0x30, 0xff, 0xd6, 0xa0,
 183   0x31, 0xff, 0xd6, 0x9f, 0x31, 0xff, 0xd7, 0xa0, 0x31, 0xf8, 0xd7, 0xa0,
 184   0x31, 0x53, 0xd7, 0xa1, 0x32, 0x81, 0xd7, 0xa1, 0x32, 0xff, 0xd7, 0xa1,
 185   0x32, 0xff, 0xd7, 0xa1, 0x32, 0xff, 0xd7, 0xa1, 0x32, 0xff, 0xe2, 0xbe,
 186   0x79, 0xff, 0xeb, 0xd1, 0xa0, 0xff, 0xe5, 0xc2, 0x79, 0xff, 0xe1, 0xb9,
 187   0x6a, 0xff, 0xe2, 0xbf, 0x7c, 0xff, 0xf0, 0xdd, 0xba, 0xff, 0xed, 0xd8,
 188   0xb3, 0xff, 0xed, 0xd8, 0xb3, 0xff, 0xf0, 0xdd, 0xba, 0xff, 0xe2, 0xbf,
 189   0x7c, 0xff, 0xe1, 0xb9, 0x6a, 0xff, 0xe5, 0xc1, 0x79, 0xff, 0xeb, 0xd1,
 190   0xa0, 0xff, 0xe2, 0xbe, 0x79, 0xff, 0xd7, 0xa1, 0x32, 0xff, 0xd7, 0xa1,
 191   0x32, 0xff, 0xd7, 0xa1, 0x32, 0xff, 0xd7, 0xa1, 0x32, 0xf8, 0xd7, 0xa1,
 192   0x32, 0x53, 0xd8, 0xa2, 0x33, 0x81, 0xd8, 0xa2, 0x33, 0xff, 0xd8, 0xa2,
 193   0x33, 0xff, 0xd8, 0xa2, 0x31, 0xff, 0xdd, 0xb0, 0x53, 0xff, 0xec, 0xd3,
 194   0xa1, 0xff, 0xda, 0xa8, 0x3f, 0xff, 0xd8, 0xa5, 0x40, 0xff, 0xe5, 0xc4,
 195   0x87, 0xff, 0xe9, 0xcd, 0x94, 0xff, 0xe3, 0xbf, 0x78, 0xff, 0xe4, 0xc0,
 196   0x75, 0xff, 0xe4, 0xc0, 0x75, 0xff, 0xe3, 0xbe, 0x78, 0xff, 0xe9, 0xcd,
 197   0x94, 0xff, 0xe5, 0xc4, 0x87, 0xff, 0xd8, 0xa5, 0x40, 0xff, 0xda, 0xa8,
 198   0x3f, 0xff, 0xec, 0xd3, 0xa1, 0xff, 0xdd, 0xb0, 0x53, 0xff, 0xd8, 0xa2,
 199   0x31, 0xff, 0xd8, 0xa2, 0x33, 0xff, 0xd8, 0xa2, 0x33, 0xf8, 0xd8, 0xa2,
 200   0x33, 0x53, 0xd9, 0xa4, 0x34, 0x81, 0xd9, 0xa4, 0x34, 0xff, 0xd9, 0xa4,
 201   0x34, 0xff, 0xd8, 0xa2, 0x30, 0xff, 0xe4, 0xbf, 0x73, 0xff, 0xe6, 0xc4,
 202   0x7d, 0xff, 0xda, 0xa9, 0x40, 0xff, 0xf3, 0xe5, 0xcc, 0xff, 0xf0, 0xdc,
 203   0xb3, 0xff, 0xdc, 0xab, 0x45, 0xff, 0xeb, 0xd2, 0x9e, 0xff, 0xda, 0xa8,
 204   0x3d, 0xff, 0xda, 0xa8, 0x3d, 0xff, 0xeb, 0xd2, 0x9e, 0xff, 0xdc, 0xab,
 205   0x45, 0xff, 0xf0, 0xdc, 0xb3, 0xff, 0xf3, 0xe5, 0xcc, 0xff, 0xda, 0xa9,
 206   0x40, 0xff, 0xe6, 0xc4, 0x7d, 0xff, 0xe4, 0xc0, 0x73, 0xff, 0xd8, 0xa2,
 207   0x30, 0xff, 0xd9, 0xa4, 0x34, 0xff, 0xd9, 0xa4, 0x34, 0xf8, 0xd9, 0xa4,
 208   0x34, 0x53, 0xd9, 0xa5, 0x35, 0x81, 0xd9, 0xa5, 0x35, 0xff, 0xd9, 0xa5,
 209   0x35, 0xff, 0xd9, 0xa4, 0x32, 0xff, 0xe3, 0xbc, 0x6a, 0xff, 0xe8, 0xc9,
 210   0x8b, 0xff, 0xda, 0xa7, 0x39, 0xff, 0xe9, 0xcb, 0x8a, 0xff, 0xe2, 0xb9,
 211   0x60, 0xff, 0xdc, 0xac, 0x47, 0xff, 0xec, 0xd3, 0xa1, 0xff, 0xdb, 0xa9,
 212   0x3c, 0xff, 0xdb, 0xa8, 0x3d, 0xff, 0xec, 0xd3, 0xa1, 0xff, 0xdc, 0xac,
 213   0x47, 0xff, 0xe2, 0xb9, 0x60, 0xff, 0xe9, 0xcb, 0x8a, 0xff, 0xda, 0xa7,
 214   0x39, 0xff, 0xe8, 0xc9, 0x8c, 0xff, 0xe3, 0xbc, 0x6a, 0xff, 0xd9, 0xa4,
 215   0x32, 0xff, 0xd9, 0xa5, 0x35, 0xff, 0xd9, 0xa5, 0x35, 0xf8, 0xd9, 0xa5,
 216   0x35, 0x53, 0xda, 0xa6, 0x35, 0x81, 0xda, 0xa6, 0x36, 0xff, 0xda, 0xa6,
 217   0x35, 0xff, 0xda, 0xa6, 0x35, 0xff, 0xdc, 0xac, 0x42, 0xff, 0xec, 0xd4,
 218   0xa2, 0xff, 0xe1, 0xb9, 0x6b, 0xff, 0xd9, 0xa6, 0x3c, 0xff, 0xdb, 0xaa,
 219   0x47, 0xff, 0xe9, 0xcc, 0x95, 0xff, 0xe6, 0xc4, 0x7a, 0xff, 0xda, 0xa5,
 220   0x34, 0xff, 0xda, 0xa5, 0x34, 0xff, 0xe6, 0xc4, 0x79, 0xff, 0xe9, 0xcc,
 221   0x95, 0xff, 0xdb, 0xaa, 0x47, 0xff, 0xd9, 0xa6, 0x3c, 0xff, 0xe1, 0xb9,
 222   0x6b, 0xff, 0xec, 0xd4, 0xa2, 0xff, 0xdc, 0xac, 0x42, 0xff, 0xda, 0xa6,
 223   0x35, 0xff, 0xda, 0xa6, 0x35, 0xff, 0xda, 0xa6, 0x36, 0xf8, 0xda, 0xa6,
 224   0x35, 0x53, 0xdb, 0xa7, 0x36, 0x81, 0xdb, 0xa7, 0x36, 0xff, 0xdb, 0xa7,
 225   0x36, 0xff, 0xdb, 0xa7, 0x36, 0xff, 0xda, 0xa7, 0x35, 0xff, 0xdf, 0xb2,
 226   0x50, 0xff, 0xeb, 0xd0, 0x97, 0xff, 0xeb, 0xd2, 0xa1, 0xff, 0xec, 0xd3,
 227   0xa2, 0xff, 0xe7, 0xc5, 0x7b, 0xff, 0xdb, 0xa9, 0x3a, 0xff, 0xdb, 0xa7,
 228   0x36, 0xff, 0xdb, 0xa7, 0x36, 0xff, 0xdb, 0xa9, 0x3a, 0xff, 0xe7, 0xc5,
 229   0x7b, 0xff, 0xec, 0xd3, 0xa2, 0xff, 0xeb, 0xd2, 0xa1, 0xff, 0xeb, 0xd0,
 230   0x97, 0xff, 0xdf, 0xb2, 0x50, 0xff, 0xda, 0xa7, 0x35, 0xff, 0xdb, 0xa7,
 231   0x36, 0xff, 0xdb, 0xa7, 0x36, 0xff, 0xdb, 0xa7, 0x36, 0xf8, 0xdb, 0xa7,
 232   0x36, 0x53, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 233   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa7,
 234   0x36, 0xff, 0xdb, 0xa9, 0x39, 0xff, 0xde, 0xae, 0x44, 0xff, 0xdd, 0xac,
 235   0x40, 0xff, 0xdb, 0xa7, 0x35, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 236   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa7,
 237   0x35, 0xff, 0xdd, 0xac, 0x40, 0xff, 0xde, 0xae, 0x44, 0xff, 0xdb, 0xa9,
 238   0x39, 0xff, 0xdb, 0xa7, 0x36, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 239   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xf8, 0xdb, 0xa8,
 240   0x37, 0x53, 0xdb, 0xa8, 0x37, 0x82, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 241   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 242   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x36, 0xff, 0xdb, 0xa8,
 243   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 244   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 245   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x36, 0xff, 0xdb, 0xa8,
 246   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 247   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xf8, 0xdb, 0xa8,
 248   0x37, 0x54, 0xdb, 0xa8, 0x37, 0x63, 0xdb, 0xa8, 0x37, 0xf6, 0xdb, 0xa8,
 249   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 250   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 251   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 252   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 253   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 254   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8,
 255   0x37, 0xff, 0xdb, 0xa8, 0x37, 0xff, 0xdb, 0xa8, 0x37, 0xe7, 0xdb, 0xa8,
 256   0x37, 0x3c, 0xdb, 0xa8, 0x37, 0x10, 0xdb, 0xa8, 0x37, 0x63, 0xdb, 0xa8,
 257   0x37, 0x82, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8,
 258   0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8,
 259   0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8,
 260   0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8,
 261   0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8,
 262   0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8,
 263   0x37, 0x81, 0xdb, 0xa8, 0x37, 0x81, 0xdb, 0xa8, 0x37, 0x53, 0xdb, 0xa8,
 264   0x37, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 265   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 266   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 267   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 268   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 269   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 270   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 271   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 272   0x00, 0x00
 273 };
 274
 275 #define ICON_SIZE    (sizeof(icon_file))
 276 #define EMFAT_INCR_ICON 1
 277 #else
 278 #define EMFAT_INCR_ICON 0
 279 #endif
 280
 281 #define CMA_TIME EMFAT_ENCODE_CMA_TIME(25,12,2019, 13,0,0)
 282 #define CMA { CMA_TIME, CMA_TIME, CMA_TIME }
 283
 284 static void memory_read_proc(uint8_t *dest, int size, uint32_t offset, emfat_entry_t *entry)
 285 {
 286     int len;
 287
 288     if (offset > entry->curr_size) {
 289         return;
 290     }
 291
 292     if (offset + size > entry->curr_size) {
 293         len = entry->curr_size - offset;
 294     } else {
 295         len = size;
 296     }
 297
 298     memcpy(dest, &((char *)entry->user_data)[offset], len);
 299 }
 300
 301 static void bblog_read_proc(uint8_t *dest, int size, uint32_t offset, emfat_entry_t *entry)
 302 {
 303     UNUSED(entry);
 304
 305     flashfsReadAbs(offset, dest, size);
 306 }
 307
 308 static const emfat_entry_t entriesPredefined[] =
 309 {
 310     // name           dir    attr         lvl offset  size             max_size        user                time  read               write
 311     { "",             true,  0,           0,  0,      0,               0,              0,                  CMA,  NULL,              NULL, { 0 } },
 312 #ifdef USE_EMFAT_AUTORUN
 313     { "autorun.inf",  false, ATTR_HIDDEN, 1,  0,      AUTORUN_SIZE,    AUTORUN_SIZE,   (long)autorun_file, CMA,  memory_read_proc,  NULL, { 0 } },
 314 #endif
 315 #ifdef USE_EMFAT_ICON
 316     { "icon.ico",     false, ATTR_HIDDEN, 1,  0,      ICON_SIZE,       ICON_SIZE,      (long)icon_file,    CMA,  memory_read_proc,  NULL, { 0 } },
 317 #endif
 318 #ifdef USE_EMFAT_README
 319     { "readme.txt",   false, 0,           1,  0,      README_SIZE,     1024*1024,      (long)readme_file,  CMA,  memory_read_proc,  NULL, { 0 } },
 320 #endif
 321     { "INAV_ALL.BBL", 0,     0,           1,  0,      0,               0,              0,                  CMA,  bblog_read_proc,   NULL, { 0 } },
 322     { ".PADDING.TXT",  0,     ATTR_HIDDEN, 1,  0,      0,               0,              0,                  CMA,  NULL,              NULL, { 0 } },
 323 };
 324
 325 #define PREDEFINED_ENTRY_COUNT (1 + EMFAT_INCR_AUTORUN + EMFAT_INCR_ICON + EMFAT_INCR_README)
 326 #define APPENDED_ENTRY_COUNT 2
 327
 328 #define EMFAT_MAX_LOG_ENTRY 100
 329 #define EMFAT_MAX_ENTRY (PREDEFINED_ENTRY_COUNT + EMFAT_MAX_LOG_ENTRY + APPENDED_ENTRY_COUNT)
 330
 331 static emfat_entry_t entries[EMFAT_MAX_ENTRY];
 332
 333 emfat_t emfat;
 334 static uint32_t cmaTime = CMA_TIME;
 335
 336 static void emfat_set_entry_cma(emfat_entry_t *entry)
 337 {
 338     // Set file creation/modification/access times to be the same, either the default date or that from the RTC
 339     // In practise this will be when the filesystem is mounted as the date is passed from the host over USB
 340     entry->cma_time[0] = cmaTime;
 341     entry->cma_time[1] = cmaTime;
 342     entry->cma_time[2] = cmaTime;
 343 }
 344
 345 #ifdef USE_FLASHFS
 346 static void emfat_add_log(emfat_entry_t *entry, int number, uint32_t offset, uint32_t size)
 347 {
 348     static char logNames[EMFAT_MAX_LOG_ENTRY][8+1+3];
 349
 350     tfp_sprintf(logNames[number], "INAV_%03d.BBL", number + 1);
 351     entry->name = logNames[number];
 352     entry->level = 1;
 353     entry->offset = offset;
 354     entry->curr_size = size;
 355     entry->max_size = entry->curr_size;
 356     entry->readcb = bblog_read_proc;
 357     // Set file modification/access times to be the same as the creation time
 358     entry->cma_time[1] = entry->cma_time[0];
 359     entry->cma_time[2] = entry->cma_time[0];
 360 }
 361
 362 static int emfat_find_log(emfat_entry_t *entry, int maxCount, int flashfsUsedSpace)
 363 {
 364     int lastOffset = 0;
 365     int currOffset = 0;
 366     int buffOffset;
 367     int hdrOffset;
 368     int fileNumber = 0;
 369     uint8_t buffer[HDR_BUF_SIZE];
 370     int logCount = 0;
 371     char *logHeader = "H Product:Blackbox";
 372     int lenLogHeader = strlen(logHeader);
 373     char *timeHeader = "H Log start datetime:";
 374     int lenTimeHeader = strlen(timeHeader);
 375     int timeHeaderMatched = 0;
 376
 377     for ( ; currOffset < flashfsUsedSpace ; currOffset += 2048) { // XXX 2048 = FREE_BLOCK_SIZE in io/flashfs.c
 378
 379         flashfsReadAbs(currOffset, buffer, HDR_BUF_SIZE);
 380
 381         if (strncmp((char *)buffer, logHeader, lenLogHeader)) {
 382             continue;
 383         }
 384
 385         // The length of the previous record is now known
 386         if (lastOffset != currOffset) {
 387             // Record the previous entry
 388             emfat_add_log(entry++, fileNumber++, lastOffset, currOffset - lastOffset);
 389
 390             logCount++;
 391         }
 392
 393         // Find the "Log start datetime" entry, example encoding "H Log start datetime:2019-08-15T13:18:22.199+00:00"
 394
 395         buffOffset = lenLogHeader;
 396         hdrOffset = currOffset;
 397
 398         // Set the default timestamp for this log entry in case the timestamp is not found
 399         entry->cma_time[0] = cmaTime;
 400
 401         // Search for the timestamp record
 402         while (true) {
 403             if (buffer[buffOffset++] == timeHeader[timeHeaderMatched]) {
 404                 // This matches the header we're looking for so far
 405                 if (++timeHeaderMatched == lenTimeHeader) {
 406                     // Complete match so read date/time into buffer
 407                     flashfsReadAbs(hdrOffset + buffOffset, buffer, HDR_BUF_SIZE);
 408
 409                     // Extract the time values to create the CMA time
 410
 411                     char *last;
 412                     char* tok = strtok_r((char *)buffer, "-T:.", &last);
 413                     int index=0;
 414                     int year=0,month=0,day=0,hour=0,min=0,sec=0;
 415                     while (tok != NULL) {
 416                         switch(index) {
 417                             case 0:
 418                                 year = fastA2I(tok);
 419                                 break;
 420                             case 1:
 421                                 month = fastA2I(tok);
 422                                 break;
 423                             case 2:
 424                                 day = fastA2I(tok);
 425                                 break;
 426                             case 3:
 427                                 hour = fastA2I(tok);
 428                                 break;
 429                             case 4:
 430                                 min = fastA2I(tok);
 431                                 break;
 432                             case 5:
 433                                 sec = fastA2I(tok);
 434                                 break;
 435                         }
 436                         if(index == 5)
 437                             break;
 438                         index++;
 439                         tok = strtok_r(NULL, "-T:.", &last);
 440                     }
 441                     // Set the file creation time
 442                     if (year) {
 443                         entry->cma_time[0] = EMFAT_ENCODE_CMA_TIME(day, month, year, hour, min, sec);
 444                     }
 445                     break;
 446                 }
 447             } else {
 448                 timeHeaderMatched = 0;
 449             }
 450
 451             if (buffOffset == HDR_BUF_SIZE) {
 452                 // Read the next portion of the header
 453                 hdrOffset += HDR_BUF_SIZE;
 454
 455                 // Check for flash overflow
 456                 if (hdrOffset > flashfsUsedSpace) {
 457                     break;
 458                 }
 459                 flashfsReadAbs(hdrOffset, buffer, HDR_BUF_SIZE);
 460                 buffOffset = 0;
 461             }
 462         }
 463
 464         if (fileNumber == maxCount) {
 465             break;
 466         }
 467
 468         lastOffset = currOffset;
 469     }
 470
 471     // Now add the final entry
 472     if (fileNumber != maxCount && lastOffset != currOffset) {
 473         emfat_add_log(entry, fileNumber, lastOffset, currOffset - lastOffset);
 474         ++logCount;
 475     }
 476
 477     return logCount;
 478 }
 479 #endif  // USE_FLASHFS
 480
 481 void emfat_init_files(void)
 482 {
 483 #ifdef USE_FLASHFS
 484     int flashfsUsedSpace = 0;
 485     int entryIndex = PREDEFINED_ENTRY_COUNT;
 486     emfat_entry_t *entry;
 487
 488     flashfsInit();
 489     flashfsUsedSpace = flashfsIdentifyStartOfFreeSpace();
 490
 491     // Detect and create entries for each individual log
 492     const int logCount = emfat_find_log(&entries[PREDEFINED_ENTRY_COUNT], EMFAT_MAX_LOG_ENTRY, flashfsUsedSpace);
 493
 494     entryIndex += logCount;
 495
 496     if (logCount > 0) {
 497         // Use the first log time for predefined entries
 498         cmaTime = entries[PREDEFINED_ENTRY_COUNT].cma_time[0];
 499         // Create the all logs entry that represents all used flash space to
 500         // allow downloading the entire log in one file
 501         entries[entryIndex] = entriesPredefined[PREDEFINED_ENTRY_COUNT];
 502         entry = &entries[entryIndex];
 503         entry->curr_size = flashfsUsedSpace;
 504         entry->max_size = entry->curr_size;
 505         // This entry has timestamps corresponding to when the filesystem is mounted
 506         emfat_set_entry_cma(entry);
 507         ++entryIndex;
 508     }
 509
 510     // Padding file to fill out the filesystem size to FILESYSTEM_SIZE_MB
 511     if (flashfsUsedSpace * 2 < FILESYSTEM_SIZE_MB * 1024 * 1024) {
 512         entries[entryIndex] = entriesPredefined[PREDEFINED_ENTRY_COUNT + 1];
 513         entry = &entries[entryIndex];
 514         // used space is doubled because of the individual files plus the single complete file
 515         entry->curr_size = (FILESYSTEM_SIZE_MB * 1024 * 1024) - (flashfsUsedSpace * 2);
 516         entry->max_size = entry->curr_size;
 517         emfat_set_entry_cma(entry);
 518     }
 519 #endif // USE_FLASHFS
 520     // create the predefined entries
 521     for (size_t i = 0 ; i < PREDEFINED_ENTRY_COUNT ; i++) {
 522         entries[i] = entriesPredefined[i];
 523         emfat_set_entry_cma(&entries[i]);
 524     }
 525     emfat_init(&emfat, "INAV_FC", entries);
 526 }