C++ (Cpp) ow_find_sensor Examples

Example #1

File: lome6.c Project: AnDann/ethersex

int16_t
lome6_get_temperature(ow_rom_code_t * rom)
{
  int16_t retval = 0x7FFF;      /* error */

  ow_sensor_t * sensor = ow_find_sensor(rom);
  if (sensor != NULL)
  {
    ow_temp_t temp = sensor->temp;
    retval = (temp.twodigits ? temp.val / 10 : temp.val);
  }

  return retval;
}

Example #2

File: onewire_ecmd.c Project: FordPrfkt/HomeControl

int16_t
parse_cmd_onewire_list(char *cmd, char *output, uint16_t len)
{

  uint8_t firstonbus = 0;
  int16_t ret;

  if (ow_global.lock == 0)
  {
    firstonbus = 1;
#if ONEWIRE_BUSCOUNT > 1
    ow_global.bus = 0;
#endif
    OW_DEBUG_LIST("called onewire list for the first time\n");

#ifdef ONEWIRE_DS2502_SUPPORT
    /* parse optional parameters */
    while (*cmd == ' ')
      cmd++;
    switch (*cmd)
    {
      case 't':
        ow_global.list_type = OW_LIST_TYPE_TEMP_SENSOR;
        break;
      case 'e':
        ow_global.list_type = OW_LIST_TYPE_EEPROM;
        break;
      case '\0':
        ow_global.list_type = OW_LIST_TYPE_ALL;
        break;
      default:
        return ECMD_ERR_PARSE_ERROR;
    }
#endif
  }
  else
  {
    OW_DEBUG_LIST("called onewire list again\n");
    firstonbus = 0;
  }

#if defined ONEWIRE_DS2502_SUPPORT || ONEWIRE_BUSCOUNT > 1
list_next:;
#endif

#if ONEWIRE_BUSCOUNT > 1
  ret =
    ow_search_rom((uint8_t) (1 << (ow_global.bus + ONEWIRE_STARTPIN)),
                  firstonbus);
#else
  ret = ow_search_rom(ONEWIRE_BUSMASK, firstonbus);
#endif

  /* make sure only one conversion happens at a time */
  ow_global.lock = 1;

  if (ret == 1)
  {
#ifdef ONEWIRE_DS2502_SUPPORT
    if (ow_global.list_type == OW_LIST_TYPE_ALL ||
        (ow_global.list_type == OW_LIST_TYPE_TEMP_SENSOR &&
         ow_temp_sensor(&ow_global.current_rom)) ||
        (ow_global.list_type == OW_LIST_TYPE_EEPROM &&
         ow_eeprom(&ow_global.current_rom)))
    {
      /* only print device rom address if it matches the selected list type */
#endif

      OW_DEBUG_LIST("discovered device "
#if ONEWIRE_BUSCOUNT > 1
                    "%02x %02x %02x %02x %02x %02x %02x %02x on bus %d\n",
#else
                    "%02x %02x %02x %02x %02x %02x %02x %02x\n",
#endif
                    ow_global.current_rom.bytewise[0],
                    ow_global.current_rom.bytewise[1],
                    ow_global.current_rom.bytewise[2],
                    ow_global.current_rom.bytewise[3],
                    ow_global.current_rom.bytewise[4],
                    ow_global.current_rom.bytewise[5],
                    ow_global.current_rom.bytewise[6],
                    ow_global.current_rom.bytewise[7]
#if ONEWIRE_BUSCOUNT > 1
                    , ow_global.bus);
#else
        );
#endif
#ifdef ONEWIRE_NAMING_SUPPORT
      char *name = "";
      ow_sensor_t *sensor = ow_find_sensor(&ow_global.current_rom);
      if (sensor != NULL && sensor->named)
      {
        name = sensor->name;
      }
#endif
      ret = snprintf_P(output, len, PSTR("%02x%02x%02x%02x%02x%02x%02x%02x"
#ifdef ONEWIRE_NAMING_SUPPORT
                                         "\t%s"
#endif
                       ),
                       ow_global.current_rom.bytewise[0],
                       ow_global.current_rom.bytewise[1],
                       ow_global.current_rom.bytewise[2],
                       ow_global.current_rom.bytewise[3],
                       ow_global.current_rom.bytewise[4],
                       ow_global.current_rom.bytewise[5],
                       ow_global.current_rom.bytewise[6],
                       ow_global.current_rom.bytewise[7]
#ifdef ONEWIRE_NAMING_SUPPORT
                       , name
#endif
        );

      OW_DEBUG_LIST("generated %d bytes\n", ret);

      /* set return value that the parser has to be called again */
      if (ret > 0)
        ret = ECMD_AGAIN(ret);

      OW_DEBUG_LIST("returning %d\n", ret);
      return ECMD_FINAL(ret);

#ifdef ONEWIRE_DS2502_SUPPORT
    }