src/devices/akhan_100F14.c

   1 /* Akhan remote keyless entry system
   2 *
   3 *       This RKE system uses a HS1527 OTP encoder (http://sc-tech.cn/en/hs1527.pdf)
   4 *       Each message consists of a preamble, 20 bit id and 4 data bits.
   5 *
   6 *       (code based on chuango.c and generic_remote.c)
   7 */
   8 #include "rtl_433.h"
   9 #include "pulse_demod.h"
  10 #include "util.h"
  11 #include "data.h"
  12
  13 static int akhan_rke_callback(bitbuffer_t *bitbuffer) {
  14         bitrow_t *bb = bitbuffer->bb;
  15         uint8_t *b = bb[0];
  16
  17         //invert bits, short pulse is 0, long pulse is 1
  18         b[0] = ~b[0];
  19         b[1] = ~b[1];
  20         b[2] = ~b[2];
  21
  22         unsigned bits = bitbuffer->bits_per_row[0];
  23
  24         if (bits == 25) {
  25                 char time_str[LOCAL_TIME_BUFLEN];
  26                 local_time_str(0, time_str);
  27                 data_t *data;
  28
  29                 uint32_t ID = (b[0] << 12) | (b[1] << 4) | (b[2] >> 4);
  30                 uint32_t dataBits = b[2] & 0x0F;
  31                 int isAkhan = 1;
  32                 char *CMD;
  33
  34                 switch (dataBits) {
  35                         case 0x1:       CMD = "0x1 (Lock)"; break;
  36                         case 0x2:       CMD = "0x2 (Unlock)"; break;
  37                         case 0x4:       CMD = "0x4 (Mute)"; break;
  38                         case 0x8:       CMD = "0x8 (Alarm)"; break;
  39                         default:
  40                                 isAkhan = 0;
  41                                 break;
  42                 }
  43
  44                 if (isAkhan == 1) {
  45                         data = data_make(       "time",         "",                             DATA_STRING,    time_str,
  46                                                                         "device",       "",                             DATA_STRING,    "Akhan 100F14 remote keyless entry",
  47                                                                         "id",                   "ID (20bit)",   DATA_FORMAT,    "0x%x",         DATA_INT, ID,
  48                                                                         "data",         "Data (4bit)",  DATA_STRING,    CMD,
  49                                                                         NULL);
  50
  51                         data_acquired_handler(data);
  52                         return 1;
  53                 }
  54
  55         }
  56         return 0;
  57 }
  58
  59 static char *output_fields[] = {
  60     "time",
  61     "device",
  62     "id",
  63     "data",
  64     "other",
  65     NULL
  66 };
  67
  68 PWM_Precise_Parameters pwm_precise_parameters_akhan = {
  69         .pulse_tolerance        = 20,
  70         .pulse_sync_width       = 0,
  71 };
  72
  73 r_device akhan_100F14 = {
  74         .name          = "Akhan 100F14 remote keyless entry",
  75         .modulation    = OOK_PULSE_PWM_PRECISE,
  76         .short_limit   = 316,
  77         .long_limit    = 1020,
  78         .reset_limit   = 1800,
  79         .json_callback = &akhan_rke_callback,
  80         .disabled      = 0,
  81         .demod_arg     = (uintptr_t)&pwm_precise_parameters_akhan,
  82 };