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 "emfat.h"
  27 #include "emfat_file.h"
  28
  29 #include "common/printf.h"
  30 #include "common/strtol.h"
  31 #include "common/time.h"
  32 #include "common/utils.h"
  33
  34 #include "drivers/flash.h"
  35 #include "drivers/light_led.h"
  36 #include "drivers/time.h"
  37 #include "drivers/usb_msc.h"
  38
  39 #include "io/flashfs.h"
  40
  41 #include "pg/flash.h"
  42
  43 #include "msc/usbd_storage.h"
  44
  45 #define FILESYSTEM_SIZE_MB 256
  46 #define HDR_BUF_SIZE 32
  47
  48 #ifdef USE_EMFAT_AUTORUN
  49 static const char autorun_file[] =
  50     "[autorun]\r\n"
  51     "icon=icon.ico\r\n"
  52     "label=Betaflight Onboard Flash\r\n" ;
  53 #define AUTORUN_SIZE (sizeof(autorun_file) - 1)
  54 #define EMFAT_INCR_AUTORUN 1
  55 #else
  56 #define EMFAT_INCR_AUTORUN 0
  57 #endif
  58
  59 #ifdef USE_EMFAT_README
  60 static const char readme_file[] =
  61     "This is readme file\r\n";
  62 #define README_SIZE  (sizeof(readme_file) - 1)
  63 #define EMFAT_INCR_README 1
  64 #else
  65 #define EMFAT_INCR_README 0
  66 #endif
  67
  68 #ifdef USE_EMFAT_ICON
  69 static const char icon_file[] =
  70 {
  71     0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x18, 0x18, 0x00, 0x00, 0x01, 0x00, 0x20, 0x00, 0x28, 0x09,
  72     0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x30, 0x00,
  73     0x00, 0x00, 0x01, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  74     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xfc,
  75     0xfc, 0xde, 0xfc, 0xfc, 0xfc, 0xee, 0xfb, 0xfb, 0xfb, 0xee, 0xfb, 0xfb, 0xfb, 0xee, 0xfd, 0xfd,
  76     0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfc, 0xfc, 0xfc, 0xee, 0xfb, 0xfb,
  77     0xfb, 0xee, 0xfc, 0xfc, 0xfc, 0xee, 0xfb, 0xfb, 0xfb, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
  78     0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfb, 0xfb, 0xfb, 0xee, 0xfc, 0xfc,
  79     0xfc, 0xee, 0xfb, 0xfb, 0xfb, 0xee, 0xfb, 0xfb, 0xfb, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
  80     0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfc, 0xfc, 0xfc, 0xde, 0xfb, 0xfb,
  81     0xfb, 0xf4, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  82     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  83     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  84     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  85     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  86     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, 0xfc, 0xfc, 0xf4, 0xfd, 0xfd,
  87     0xfd, 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfd,
  88     0xfd, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
  89     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
  90     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  91     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfe, 0xfe,
  92     0xfe, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
  93     0xfd, 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfc, 0xfc,
  94     0xfc, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff,
  95     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf9, 0xfb,
  96     0xfc, 0xff, 0xd7, 0xdd, 0xe1, 0xff, 0xc7, 0xc3, 0xc2, 0xff, 0xce, 0xce, 0xce, 0xff, 0xe2, 0xe4,
  97     0xe5, 0xff, 0xfd, 0xfc, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe,
  98     0xfe, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfb, 0xfb,
  99     0xfb, 0xee, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
 100     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfe, 0xfe,
 101     0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xb0, 0xad, 0xad, 0xff, 0x3a, 0x89,
 102     0xa8, 0xff, 0x03, 0xb5, 0xed, 0xff, 0x20, 0x57, 0x6c, 0xff, 0x36, 0x25, 0x1f, 0xff, 0x34, 0x52,
 103     0x5e, 0xff, 0x4f, 0x65, 0x6e, 0xff, 0x8a, 0x86, 0x84, 0xff, 0xd8, 0xd8, 0xd8, 0xff, 0xff, 0xff,
 104     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, 0xfc, 0xfc, 0xee, 0xfa, 0xfa,
 105     0xfa, 0xee, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
 106     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfc, 0xfc,
 107     0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xb7, 0xb2, 0xb1, 0xff, 0x2a, 0x1d, 0x18, 0xff, 0x33, 0x2a,
 108     0x26, 0xff, 0x25, 0x68, 0x7f, 0xff, 0x16, 0x90, 0xbe, 0xff, 0x3a, 0x38, 0x37, 0xff, 0x37, 0x38,
 109     0x38, 0xff, 0x31, 0x35, 0x37, 0xff, 0x29, 0x28, 0x27, 0xff, 0x34, 0x34, 0x34, 0xff, 0x93, 0x93,
 110     0x93, 0xff, 0xf3, 0xf3, 0xf3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfb, 0xfb, 0xfb, 0xee, 0xfd, 0xfd,
 111     0xfd, 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfe, 0xfe,
 112     0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
 113     0xff, 0xff, 0xff, 0xfc, 0xf8, 0xff, 0x4f, 0xa0, 0xbf, 0xff, 0x0d, 0x8c, 0xb8, 0xff, 0x2c, 0x62,
 114     0x76, 0xff, 0x3e, 0x31, 0x2e, 0xff, 0x36, 0x46, 0x4d, 0xff, 0x38, 0x41, 0x44, 0xff, 0x3b, 0x39,
 115     0x38, 0xff, 0x37, 0x36, 0x35, 0xff, 0x2c, 0x2c, 0x2c, 0xff, 0x28, 0x28, 0x28, 0xff, 0x83, 0x83,
 116     0x83, 0xff, 0x77, 0x77, 0x77, 0xff, 0xd5, 0xd5, 0xd5, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
 117     0xfd, 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfc, 0xfc,
 118     0xfc, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfc, 0xfc, 0xfc, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff,
 119     0xff, 0xff, 0xff, 0xfd, 0xfb, 0xff, 0x5f, 0x98, 0xad, 0xff, 0x1a, 0x5c, 0x73, 0xff, 0x30, 0x5a,
 120     0x6a, 0xff, 0x38, 0x42, 0x46, 0xff, 0x3c, 0x35, 0x33, 0xff, 0x39, 0x38, 0x37, 0xff, 0x2b, 0x2b,
 121     0x2b, 0xff, 0x3c, 0x3c, 0x3c, 0xff, 0x83, 0x83, 0x83, 0xff, 0xc2, 0xc2, 0xc2, 0xff, 0xd2, 0xd2,
 122     0xd2, 0xff, 0xa9, 0xa9, 0xa9, 0xff, 0x86, 0x86, 0x86, 0xff, 0xdf, 0xdf, 0xdf, 0xee, 0xfc, 0xfc,
 123     0xfc, 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
 124     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
 125     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc3, 0xba, 0xb7, 0xff, 0x2c, 0x21, 0x1d, 0xff, 0x38, 0x30,
 126     0x2d, 0xff, 0x3c, 0x3a, 0x39, 0xff, 0x34, 0x35, 0x35, 0xff, 0x2e, 0x2e, 0x2e, 0xff, 0x78, 0x78,
 127     0x78, 0xff, 0xdf, 0xdf, 0xdf, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 128     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xeb, 0xeb, 0xeb, 0xee, 0xfa, 0xfa,
 129     0xfa, 0xee, 0xfe, 0xfe, 0xfe, 0xff, 0xfc, 0xfc, 0xfc, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
 130     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfc, 0xfc,
 131     0xfc, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xb3, 0xb0, 0xaf, 0xff, 0x3d, 0x31,
 132     0x2c, 0xff, 0x33, 0x30, 0x2f, 0xff, 0x49, 0x4a, 0x4a, 0xff, 0xcb, 0xcb, 0xcb, 0xff, 0xff, 0xff,
 133     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 134     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfc, 0xfc,
 135     0xfc, 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
 136     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 137     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd3, 0xe2, 0xe8, 0xff, 0x1c, 0x85,
 138     0xae, 0xff, 0x2f, 0x44, 0x4c, 0xff, 0x41, 0x3c, 0x3a, 0xff, 0x9a, 0x9a, 0x9a, 0xff, 0xf9, 0xf9,
 139     0xf9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 140     0xff, 0xff, 0xf9, 0xf9, 0xf9, 0xff, 0xf8, 0xf8, 0xf8, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
 141     0xfd, 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff,
 142     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf8, 0xf8, 0xf8, 0xff, 0xf5, 0xf5,
 143     0xf5, 0xff, 0xf9, 0xf9, 0xf9, 0xff, 0xff, 0xff, 0xff, 0xff, 0x8a, 0xd0, 0xea, 0xff, 0x00, 0xb0,
 144     0xf7, 0xff, 0x36, 0x49, 0x51, 0xff, 0x39, 0x33, 0x31, 0xff, 0x1f, 0x1f, 0x1f, 0xff, 0x98, 0x98,
 145     0x98, 0xff, 0xe2, 0xe2, 0xe2, 0xff, 0x9b, 0x9b, 0x9b, 0xff, 0x71, 0x71, 0x71, 0xff, 0x72, 0x72,
 146     0x72, 0xff, 0x63, 0x63, 0x63, 0xff, 0xef, 0xef, 0xef, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
 147     0xfd, 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf4, 0xf4,
 148     0xf4, 0xff, 0xae, 0xae, 0xae, 0xff, 0x8c, 0x8c, 0x8c, 0xff, 0x86, 0x86, 0x86, 0xff, 0x84, 0x84,
 149     0x84, 0xff, 0x86, 0x86, 0x86, 0xff, 0x91, 0x8a, 0x87, 0xff, 0x48, 0x7a, 0x8d, 0xff, 0x00, 0x9c,
 150     0xd7, 0xff, 0x3a, 0x3e, 0x3f, 0xff, 0x39, 0x36, 0x35, 0xff, 0x35, 0x35, 0x35, 0xff, 0x42, 0x42,
 151     0x42, 0xff, 0x3b, 0x3b, 0x3b, 0xff, 0x31, 0x31, 0x31, 0xff, 0x92, 0x92, 0x92, 0xff, 0x90, 0x90,
 152     0x90, 0xff, 0x7b, 0x7b, 0x7b, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfb, 0xfb,
 153     0xfb, 0xee, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xde, 0xde, 0xde, 0xff, 0x80, 0x80,
 154     0x80, 0xff, 0xb1, 0xb1, 0xb1, 0xff, 0xe6, 0xe6, 0xe6, 0xff, 0xf9, 0xf9, 0xf9, 0xff, 0xff, 0xff,
 155     0xff, 0xff, 0xea, 0xea, 0xea, 0xff, 0x81, 0x80, 0x80, 0xff, 0x49, 0x42, 0x40, 0xff, 0x55, 0x8e,
 156     0xa3, 0xff, 0x1f, 0x5b, 0x72, 0xff, 0x35, 0x3a, 0x3c, 0xff, 0x43, 0x41, 0x41, 0xff, 0x35, 0x35,
 157     0x35, 0xff, 0x2a, 0x2a, 0x2a, 0xff, 0xbe, 0xbe, 0xbe, 0xff, 0xe8, 0xe8, 0xe8, 0xff, 0x6f, 0x6f,
 158     0x6f, 0xff, 0xe7, 0xe7, 0xe7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfb, 0xfb, 0xfb, 0xee, 0xfb, 0xfb,
 159     0xfb, 0xee, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xf5, 0xf5, 0xff, 0x7b, 0x7b, 0x7b, 0xff, 0xe0, 0xe0,
 160     0xe0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf8, 0xf8, 0xf8, 0xff, 0xb8, 0xb8,
 161     0xb8, 0xff, 0x7d, 0x7d, 0x7d, 0xff, 0xa3, 0xa3, 0xa3, 0xff, 0xd2, 0xd2, 0xd2, 0xff, 0x87, 0x7c,
 162     0x77, 0xff, 0x5a, 0x57, 0x55, 0xff, 0xca, 0xcb, 0xcb, 0xff, 0x82, 0x82, 0x82, 0xff, 0x23, 0x23,
 163     0x23, 0xff, 0x38, 0x38, 0x38, 0xff, 0x43, 0x43, 0x43, 0xff, 0x5d, 0x5d, 0x5d, 0xff, 0xd9, 0xd9,
 164     0xd9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, 0xfc, 0xfc, 0xee, 0xfd, 0xfd,
 165     0xfd, 0xee, 0xff, 0xff, 0xff, 0xff, 0xa1, 0xa1, 0xa1, 0xff, 0xb6, 0xb6, 0xb6, 0xff, 0xff, 0xff,
 166     0xff, 0xff, 0xfb, 0xfb, 0xfb, 0xff, 0xdb, 0xdb, 0xdb, 0xff, 0xb1, 0xb1, 0xb1, 0xff, 0xc7, 0xc7,
 167     0xc7, 0xff, 0xea, 0xea, 0xea, 0xff, 0xa6, 0xa6, 0xa6, 0xff, 0x60, 0x60, 0x60, 0xff, 0x9f, 0x9f,
 168     0x9f, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd1, 0xd1, 0xd1, 0xff, 0x4e, 0x4e,
 169     0x4e, 0xff, 0x29, 0x29, 0x29, 0xff, 0x73, 0x73, 0x73, 0xff, 0xeb, 0xeb, 0xeb, 0xff, 0xff, 0xff,
 170     0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
 171     0xfd, 0xee, 0xec, 0xec, 0xec, 0xff, 0x90, 0x90, 0x90, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe,
 172     0xfe, 0xff, 0xf3, 0xf3, 0xf3, 0xff, 0xf0, 0xf0, 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xb7, 0xb7,
 173     0xb7, 0xff, 0x61, 0x61, 0x61, 0xff, 0x89, 0x89, 0x89, 0xff, 0xeb, 0xeb, 0xeb, 0xff, 0xff, 0xff,
 174     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, 0xfc, 0xfc, 0xff, 0xdc, 0xdc, 0xdc, 0xff, 0x99, 0x99,
 175     0x99, 0xff, 0xbc, 0xbc, 0xbc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe,
 176     0xfe, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
 177     0xfd, 0xee, 0x98, 0x98, 0x98, 0xff, 0x9c, 0x9c, 0x9c, 0xff, 0xf9, 0xf9, 0xf9, 0xff, 0xff, 0xff,
 178     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc5, 0xc5, 0xc5, 0xff, 0x66, 0x66, 0x66, 0xff, 0x76, 0x76,
 179     0x76, 0xff, 0xdb, 0xdb, 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 180     0xff, 0xff, 0xfb, 0xfb, 0xfb, 0xff, 0xdd, 0xdd, 0xdd, 0xff, 0xcd, 0xcd, 0xcd, 0xff, 0xf7, 0xf7,
 181     0xf7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 182     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, 0xfc, 0xfc, 0xee, 0xda, 0xda,
 183     0xda, 0xee, 0x48, 0x48, 0x48, 0xff, 0x75, 0x75, 0x75, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd5, 0xd5,
 184     0xd5, 0xff, 0x72, 0x72, 0x72, 0xff, 0x6a, 0x6a, 0x6a, 0xff, 0xc8, 0xc8, 0xc8, 0xff, 0xff, 0xff,
 185     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, 0xfc, 0xfc, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff,
 186     0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 187     0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 188     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfb, 0xfb, 0xfb, 0xee, 0xeb, 0xeb,
 189     0xeb, 0xee, 0xaf, 0xaf, 0xaf, 0xff, 0xb0, 0xb0, 0xb0, 0xff, 0x8b, 0x8b, 0x8b, 0xff, 0x60, 0x60,
 190     0x60, 0xff, 0xb3, 0xb3, 0xb3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 191     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfe, 0xfe,
 192     0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff,
 193     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff,
 194     0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
 195     0xfd, 0xee, 0x66, 0x66, 0x66, 0xff, 0x54, 0x54, 0x54, 0xff, 0xa0, 0xa0, 0xa0, 0xff, 0xfa, 0xfa,
 196     0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff,
 197     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfd, 0xfd,
 198     0xfd, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xfc, 0xfc, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 199     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfc, 0xfc, 0xfc, 0xff, 0xfd, 0xfd,
 200     0xfd, 0xff, 0xfc, 0xfc, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xce, 0xce,
 201     0xce, 0xee, 0x98, 0x98, 0x98, 0xff, 0xef, 0xef, 0xef, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 202     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
 203     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff,
 204     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff,
 205     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 206     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xfd, 0xfd, 0xee, 0xf6, 0xf6,
 207     0xf6, 0xf4, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 208     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 209     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 210     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 211     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 212     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfb, 0xfb, 0xfb, 0xf4, 0xfd, 0xfd,
 213     0xfd, 0xde, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfc, 0xfc, 0xfc, 0xee, 0xfd, 0xfd,
 214     0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfc, 0xfc, 0xfc, 0xee, 0xfd, 0xfd,
 215     0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfc, 0xfc, 0xfc, 0xee, 0xfd, 0xfd,
 216     0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfc, 0xfc, 0xfc, 0xee, 0xfc, 0xfc, 0xfc, 0xee, 0xfd, 0xfd,
 217     0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfb, 0xfb, 0xfb, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd,
 218     0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xee, 0xfd, 0xfd, 0xfd, 0xde,
 219 };
 220
 221 #define ICON_SIZE    (sizeof(icon_file))
 222 #define EMFAT_INCR_ICON 1
 223 #else
 224 #define EMFAT_INCR_ICON 0
 225 #endif
 226
 227 #define CMA_TIME EMFAT_ENCODE_CMA_TIME(1,1,2018, 13,0,0)
 228 #define CMA { CMA_TIME, CMA_TIME, CMA_TIME }
 229
 230 #if defined (USE_EMFAT_AUTORUN) || defined (USE_EMFAT_ICON) || defined (USE_EMFAT_README)
 231 static void memory_read_proc(uint8_t *dest, int size, uint32_t offset, emfat_entry_t *entry)
 232 {
 233     int len;
 234
 235     if (offset > entry->curr_size) {
 236         return;
 237     }
 238
 239     if (offset + size > entry->curr_size) {
 240         len = entry->curr_size - offset;
 241     } else {
 242         len = size;
 243     }
 244
 245     memcpy(dest, &((char *)entry->user_data)[offset], len);
 246 }
 247 #endif
 248
 249 static void bblog_read_proc(uint8_t *dest, int size, uint32_t offset, emfat_entry_t *entry)
 250 {
 251     UNUSED(entry);
 252
 253     flashfsReadAbs(offset, dest, size);
 254 }
 255
 256 static const emfat_entry_t entriesPredefined[] =
 257 {
 258     // name           dir    attr         lvl offset  size             max_size        user                time  read               write
 259     { "",             true,  0,           0,  0,      0,               0,              0,                  CMA,  NULL,              NULL, { 0 } },
 260 #ifdef USE_EMFAT_AUTORUN
 261     { "autorun.inf",  false, ATTR_HIDDEN, 1,  0,      AUTORUN_SIZE,    AUTORUN_SIZE,   (long)autorun_file, CMA,  memory_read_proc,  NULL, { 0 } },
 262 #endif
 263 #ifdef USE_EMFAT_ICON
 264     { "icon.ico",     false, ATTR_HIDDEN, 1,  0,      ICON_SIZE,       ICON_SIZE,      (long)icon_file,    CMA,  memory_read_proc,  NULL, { 0 } },
 265 #endif
 266 #ifdef USE_EMFAT_README
 267     { "readme.txt",   false, 0,           1,  0,      README_SIZE,     1024*1024,      (long)readme_file,  CMA,  memory_read_proc,  NULL, { 0 } },
 268 #endif
 269     { FC_FIRMWARE_IDENTIFIER "_ALL.BBL", 0,     0,           1,  0,      0,               0,              0,                  CMA,  bblog_read_proc,   NULL, { 0 } },
 270     { "PADDING.TXT",  0,     ATTR_HIDDEN, 1,  0,      0,               0,              0,                  CMA,  NULL,              NULL, { 0 } },
 271 };
 272
 273 #define PREDEFINED_ENTRY_COUNT (1 + EMFAT_INCR_AUTORUN + EMFAT_INCR_ICON + EMFAT_INCR_README)
 274 #define APPENDED_ENTRY_COUNT 2
 275
 276 #define EMFAT_MAX_LOG_ENTRY 100
 277 #define EMFAT_MAX_ENTRY (PREDEFINED_ENTRY_COUNT + EMFAT_MAX_LOG_ENTRY + APPENDED_ENTRY_COUNT)
 278
 279 static emfat_entry_t entries[EMFAT_MAX_ENTRY];
 280
 281 emfat_t emfat;
 282 static uint32_t cmaTime = CMA_TIME;
 283
 284 static void emfat_set_entry_cma(emfat_entry_t *entry)
 285 {
 286     // Set file creation/modification/access times to be the same, either the default date or that from the RTC
 287     // In practise this will be when the filesystem is mounted as the date is passed from the host over USB
 288     entry->cma_time[0] = cmaTime;
 289     entry->cma_time[1] = cmaTime;
 290     entry->cma_time[2] = cmaTime;
 291 }
 292
 293 #ifdef USE_FLASHFS
 294 static void emfat_add_log(emfat_entry_t *entry, int number, uint32_t offset, uint32_t size)
 295 {
 296     static char logNames[EMFAT_MAX_LOG_ENTRY][8+1+3];
 297
 298     tfp_sprintf(logNames[number], FC_FIRMWARE_IDENTIFIER "_%03d.BBL", number + 1);
 299     entry->name = logNames[number];
 300     entry->level = 1;
 301     entry->offset = offset;
 302     entry->curr_size = size;
 303     entry->max_size = entry->curr_size;
 304     entry->readcb = bblog_read_proc;
 305     // Set file modification/access times to be the same as the creation time
 306     entry->cma_time[1] = entry->cma_time[0];
 307     entry->cma_time[2] = entry->cma_time[0];
 308 }
 309
 310 static int emfat_find_log(emfat_entry_t *entry, int maxCount, int flashfsUsedSpace)
 311 {
 312     static uint8_t buffer[HDR_BUF_SIZE];
 313     int lastOffset = 0;
 314     int currOffset = 0;
 315     int buffOffset;
 316     int hdrOffset;
 317     int fileNumber = 0;
 318     int logCount = 0;
 319     char *logHeader = "H Product:Blackbox";
 320     int lenLogHeader = strlen(logHeader);
 321     char *timeHeader = "H Log start datetime:";
 322     int lenTimeHeader = strlen(timeHeader);
 323     int timeHeaderMatched = 0;
 324
 325     for ( ; currOffset < flashfsUsedSpace ; currOffset += 2048) { // XXX 2048 = FREE_BLOCK_SIZE in io/flashfs.c
 326
 327         mscSetActive();
 328         mscActivityLed();
 329
 330         flashfsReadAbs(currOffset, buffer, HDR_BUF_SIZE);
 331
 332         if (strncmp((char *)buffer, logHeader, lenLogHeader)) {
 333             continue;
 334         }
 335
 336         // The length of the previous record is now known
 337         if (lastOffset != currOffset) {
 338             // Record the previous entry
 339             emfat_add_log(entry++, fileNumber++, lastOffset, currOffset - lastOffset);
 340
 341             logCount++;
 342         }
 343
 344         // Find the "Log start datetime" entry, example encoding "H Log start datetime:2019-08-15T13:18:22.199+00:00"
 345
 346         buffOffset = lenLogHeader;
 347         hdrOffset = currOffset;
 348
 349         // Set the default timestamp for this log entry in case the timestamp is not found
 350         entry->cma_time[0] = cmaTime;
 351
 352         // Search for the timestamp record
 353         while (true) {
 354             if (buffer[buffOffset++] == timeHeader[timeHeaderMatched]) {
 355                 // This matches the header we're looking for so far
 356                 if (++timeHeaderMatched == lenTimeHeader) {
 357                     // Complete match so read date/time into buffer
 358                     flashfsReadAbs(hdrOffset + buffOffset, buffer, HDR_BUF_SIZE);
 359
 360                     // Extract the time values to create the CMA time
 361                     char *nextToken = (char *)buffer;
 362                     int year = strtoul(nextToken, &nextToken, 10);
 363                     int month = strtoul(++nextToken, &nextToken, 10);
 364                     int day = strtoul(++nextToken, &nextToken, 10);
 365                     int hour = strtoul(++nextToken, &nextToken, 10);
 366                     int min = strtoul(++nextToken, &nextToken, 10);
 367                     int sec = strtoul(++nextToken, NULL, 10);
 368
 369                     // Set the file creation time
 370                     if (year) {
 371                         entry->cma_time[0] = EMFAT_ENCODE_CMA_TIME(day, month, year, hour, min, sec);
 372                     }
 373
 374                     break;
 375                 }
 376             } else {
 377                 timeHeaderMatched = 0;
 378             }
 379
 380             if (buffOffset == HDR_BUF_SIZE) {
 381                 // Read the next portion of the header
 382                 hdrOffset += HDR_BUF_SIZE;
 383
 384                 // Check for flash overflow
 385                 if (hdrOffset > flashfsUsedSpace) {
 386                     break;
 387                 }
 388
 389                 flashfsReadAbs(hdrOffset, buffer, HDR_BUF_SIZE);
 390                 buffOffset = 0;
 391             }
 392         }
 393
 394         if (fileNumber == maxCount) {
 395             break;
 396         }
 397
 398         lastOffset = currOffset;
 399     }
 400
 401     // Now add the final entry
 402     if (fileNumber != maxCount && lastOffset != currOffset) {
 403         emfat_add_log(entry, fileNumber, lastOffset, currOffset - lastOffset);
 404         ++logCount;
 405     }
 406
 407     return logCount;
 408 }
 409 #endif  // USE_FLASHFS
 410
 411 void emfat_init_files(void)
 412 {
 413     int flashfsUsedSpace = 0;
 414     int entryIndex = PREDEFINED_ENTRY_COUNT;
 415     emfat_entry_t *entry;
 416     memset(entries, 0, sizeof(entries));
 417
 418 #ifdef USE_PERSISTENT_MSC_RTC
 419     rtcTime_t mscRebootRtc;
 420     if (rtcPersistRead(&mscRebootRtc)) {
 421         const int32_t rtcSeconds = rtcTimeGetSeconds(&mscRebootRtc);
 422         cmaTime = emfat_cma_time_from_unix((uint32_t)rtcSeconds);
 423     }
 424 #endif
 425
 426     // create the predefined entries
 427     for (size_t i = 0 ; i < PREDEFINED_ENTRY_COUNT ; i++) {
 428         entries[i] = entriesPredefined[i];
 429         // These entries have timestamps corresponding to when the filesystem is mounted
 430         emfat_set_entry_cma(&entries[i]);
 431     }
 432
 433 #ifdef USE_FLASHFS
 434     flashInit(flashConfig());
 435     flashfsInit();
 436     LED0_OFF;
 437
 438     flashfsUsedSpace = flashfsIdentifyStartOfFreeSpace();
 439
 440     // Detect and create entries for each individual log
 441     const int logCount = emfat_find_log(&entries[PREDEFINED_ENTRY_COUNT], EMFAT_MAX_LOG_ENTRY, flashfsUsedSpace);
 442
 443     entryIndex += logCount;
 444
 445     if (logCount > 0) {
 446         // Create the all logs entry that represents all used flash space to
 447         // allow downloading the entire log in one file
 448         entries[entryIndex] = entriesPredefined[PREDEFINED_ENTRY_COUNT];
 449         entry = &entries[entryIndex];
 450         entry->curr_size = flashfsUsedSpace;
 451         entry->max_size = entry->curr_size;
 452         // This entry has timestamps corresponding to when the filesystem is mounted
 453         emfat_set_entry_cma(entry);
 454         ++entryIndex;
 455     }
 456 #endif // USE_FLASHFS
 457
 458     // Padding file to fill out the filesystem size to FILESYSTEM_SIZE_MB
 459     if (flashfsUsedSpace * 2 < FILESYSTEM_SIZE_MB * 1024 * 1024) {
 460         entries[entryIndex] = entriesPredefined[PREDEFINED_ENTRY_COUNT + 1];
 461         entry = &entries[entryIndex];
 462         // used space is doubled because of the individual files plus the single complete file
 463         entry->curr_size = (FILESYSTEM_SIZE_MB * 1024 * 1024) - (flashfsUsedSpace * 2);
 464         entry->max_size = entry->curr_size;
 465         // This entry has timestamps corresponding to when the filesystem is mounted
 466         emfat_set_entry_cma(entry);
 467     }
 468
 469     emfat_init(&emfat, "BETAFLT", entries);
 470     LED0_OFF;
 471 }