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Honeywell/Ademco Door/Window Security Sensor driver

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This commit is contained in:
adam1010
2016-10-16 20:37:05 +00:00
parent 13ee21329a
commit cd7bd5a949
1 changed files with 51 additions and 47 deletions
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98
src/devices/honeywell.c
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@@ -3,6 +3,16 @@
*
* Tested with the Honeywell 5811 Wireless Door/Window transmitters
*
* 64 bit packets, repeated multiple times per open/close event
*
* Protocol whitepaper: "DEFCON 22: Home Insecurity" by Logan Lamb
*
* 0xfffe Preamble and sync bit
* 0x8 Unknown
* 0xYYYYY Device serial number
* 0xYY Event Information (Open/Close, Heartbeat, etc)
* 0xYYYY CRC
*
*/
#include "rtl_433.h"
@@ -10,10 +20,6 @@
#include "util.h"
static int honeywell_callback(bitbuffer_t *bitbuffer) {
if(bitbuffer->num_rows == 0)
return 0;
int good = 0;
char time_str[LOCAL_TIME_BUFLEN];
const uint8_t *bb;
char device_id[6];
@@ -25,53 +31,51 @@ static int honeywell_callback(bitbuffer_t *bitbuffer) {
local_time_str(0, time_str);
if(bitbuffer->num_rows == 1 && bitbuffer->bits_per_row[0] == 64){
good = 1;
for(uint16_t i=0; i < 8; i++)
bitbuffer->bb[0][i] = ~bitbuffer->bb[0][i];
if(bitbuffer->num_rows != 1 || bitbuffer->bits_per_row[0] != 64)
return 0; // Unrecognized data
bb = bitbuffer->bb[0];
for(uint16_t i=0; i < 8; i++)
bitbuffer->bb[0][i] = ~bitbuffer->bb[0][i];
bb = bitbuffer->bb[0];
crc_calculated = crc16_ccitt(bb, 6, 0x8005, 0xfffe);
crc = (((uint16_t) bb[6]) << 8) + ((uint16_t) bb[7]);
if(crc != crc_calculated)
return 0; // Not a valid packet
sprintf(hex, "%02x", bb[2]);
device_id[0] = hex[1];
sprintf(hex, "%02x", bb[3]);
device_id[1] = hex[0];
device_id[2] = hex[1];
sprintf(hex, "%02x", bb[4]);
device_id[3] = hex[0];
device_id[4] = hex[1];
device_id[5] = '\0';
// Raw Binary
for (uint16_t bit = 0; bit < 64; ++bit) {
if (bb[bit/8] & (0x80 >> (bit % 8))) {
binary[bit] = '1';
} else {
binary[bit] = '0';
}
}
binary[64] = '\0';
if(good){
sprintf(hex, "%02x", bb[2]);
device_id[0] = hex[1];
sprintf(hex, "%02x", bb[3]);
device_id[1] = hex[0];
device_id[2] = hex[1];
sprintf(hex, "%02x", bb[4]);
device_id[3] = hex[0];
device_id[4] = hex[1];
device_id[5] = '\0';
data_t *data = data_make(
"time", "", DATA_STRING, time_str,
"id", "", DATA_STRING, device_id,
"state", "", DATA_STRING, ( (bb[5] & 0x80) == 0x00)? "closed":"open",
"heartbeat" , "", DATA_STRING, ( (bb[5] & 0x04) == 0x04)? "yes" : "no",
"checksum", "", DATA_STRING, "ok",
"time_unix","", DATA_INT, time(NULL),
"binary", "", DATA_STRING, binary,
NULL);
// Raw Binary
for (uint16_t bit = 0; bit < 64; ++bit) {
if (bb[bit/8] & (0x80 >> (bit % 8))) {
binary[bit] = '1';
} else {
binary[bit] = '0';
}
}
binary[64] = '\0';
crc_calculated = crc16_ccitt(bb, 6, 0x8005, 0xfffe);
crc = (((uint16_t) bb[6]) << 8) + ((uint16_t) bb[7]);
data_t *data = data_make(
"time", "", DATA_STRING, time_str,
"id", "", DATA_STRING, device_id,
"state", "", DATA_STRING, ( (bb[5] & 0x80) == 0x00)? "closed":"open",
"heartbeat" , "", DATA_STRING, ( (bb[5] & 0x04) == 0x04)? "yes" : "no",
"checksum", "", DATA_STRING, crc == crc_calculated? "ok":"bad",
"time_unix","", DATA_INT, time(NULL),
"binary", "", DATA_STRING, binary,
NULL);
data_acquired_handler(data);
return 1;
}
return 0; // Unrecognized data
data_acquired_handler(data);
return 1;
}
static char *output_fields[] = {