/* return apdu len, or -1 on error */
int Analog_Value_Encode_Property_APDU(
uint8_t * apdu,
uint32_t object_instance,
BACNET_PROPERTY_ID property,
uint32_t array_index,
BACNET_ERROR_CLASS * error_class,
BACNET_ERROR_CODE * error_code)
{
int apdu_len = 0; /* return value */
BACNET_BIT_STRING xdata bit_string;
BACNET_CHARACTER_STRING xdata char_string;
unsigned object_index;
switch (property) {
case PROP_OBJECT_IDENTIFIER:
apdu_len =
encode_application_object_id(&apdu[0], OBJECT_ANALOG_VALUE,
object_instance);
break;
case PROP_OBJECT_NAME:
characterstring_init_ansi(&char_string,
// vars[object_instance].label
Analog_Value_Name(object_instance)
);
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_OBJECT_TYPE:
apdu_len =
encode_application_enumerated(&apdu[0], OBJECT_ANALOG_VALUE);
break;
case PROP_PRESENT_VALUE:
object_index = Analog_Value_Instance_To_Index(object_instance);
apdu_len = encode_application_real(&apdu[0],
AV_Present_Value[object_index]);
break;
case PROP_STATUS_FLAGS:
bitstring_init(&bit_string);
bitstring_set_bit(&bit_string, STATUS_FLAG_IN_ALARM, false);
bitstring_set_bit(&bit_string, STATUS_FLAG_FAULT, false);
bitstring_set_bit(&bit_string, STATUS_FLAG_OVERRIDDEN, false);
bitstring_set_bit(&bit_string, STATUS_FLAG_OUT_OF_SERVICE, false);
apdu_len = encode_application_bitstring(&apdu[0], &bit_string);
break;
case PROP_EVENT_STATE:
apdu_len =
encode_application_enumerated(&apdu[0], EVENT_STATE_NORMAL);
break;
case PROP_OUT_OF_SERVICE:
apdu_len = encode_application_boolean(&apdu[0], false);
break;
case PROP_UNITS:
apdu_len = encode_application_enumerated(&apdu[0], UNITS_PERCENT);
break;
default:
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_UNKNOWN_PROPERTY;
apdu_len = -1;
break;
}
/* only array properties can have array options */
if ((apdu_len >= 0) && (array_index != BACNET_ARRAY_ALL)) {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
apdu_len = -1;
}
return apdu_len;
}
/* return apdu len, or -1 on error */
int Analog_Value_Encode_Property_APDU(
uint8_t * apdu,
uint32_t object_instance,
BACNET_PROPERTY_ID property,
int32_t array_index,
BACNET_ERROR_CLASS * error_class,
BACNET_ERROR_CODE * error_code)
{
int len = 0;
int apdu_len = 0; /* return value */
BACNET_BIT_STRING bit_string;
BACNET_CHARACTER_STRING char_string;
float real_value = (float) 1.414;
unsigned object_index = 0;
unsigned i = 0;
bool state = false;
Analog_Value_Init();
switch (property) {
case PROP_OBJECT_IDENTIFIER:
apdu_len =
encode_application_object_id(&apdu[0], OBJECT_ANALOG_VALUE,
object_instance);
break;
case PROP_OBJECT_NAME:
case PROP_DESCRIPTION:
characterstring_init_ansi(&char_string,
Analog_Value_Name(object_instance));
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_OBJECT_TYPE:
apdu_len =
encode_application_enumerated(&apdu[0], OBJECT_ANALOG_VALUE);
break;
case PROP_PRESENT_VALUE:
real_value = Analog_Value_Present_Value(object_instance);
apdu_len = encode_application_real(&apdu[0], real_value);
break;
case PROP_STATUS_FLAGS:
bitstring_init(&bit_string);
bitstring_set_bit(&bit_string, STATUS_FLAG_IN_ALARM, false);
bitstring_set_bit(&bit_string, STATUS_FLAG_FAULT, false);
bitstring_set_bit(&bit_string, STATUS_FLAG_OVERRIDDEN, false);
bitstring_set_bit(&bit_string, STATUS_FLAG_OUT_OF_SERVICE, false);
apdu_len = encode_application_bitstring(&apdu[0], &bit_string);
break;
case PROP_EVENT_STATE:
apdu_len =
encode_application_enumerated(&apdu[0], EVENT_STATE_NORMAL);
break;
case PROP_OUT_OF_SERVICE:
#if 0
object_index = Analog_Value_Instance_To_Index(object_instance);
state = Analog_Value_Out_Of_Service[object_index];
#endif
apdu_len = encode_application_boolean(&apdu[0], false);
break;
case PROP_UNITS:
apdu_len = encode_application_enumerated(&apdu[0], UNITS_PERCENT);
break;
#if 0
case PROP_PRIORITY_ARRAY:
/* Array element zero is the number of elements in the array */
if (array_index == 0)
apdu_len =
encode_application_unsigned(&apdu[0], BACNET_MAX_PRIORITY);
/* if no index was specified, then try to encode the entire list */
/* into one packet. */
else if (array_index == BACNET_ARRAY_ALL) {
object_index = Analog_Value_Instance_To_Index(object_instance);
for (i = 0; i < BACNET_MAX_PRIORITY; i++) {
/* FIXME: check if we have room before adding it to APDU */
if (Present_Value[object_index][i] == ANALOG_LEVEL_NULL)
len = encode_application_null(&apdu[apdu_len]);
else {
real_value = Present_Value[object_index][i];
len =
encode_application_real(&apdu[apdu_len],
real_value);
}
/* add it if we have room */
if ((apdu_len + len) < MAX_APDU)
apdu_len += len;
else {
*error_class = ERROR_CLASS_SERVICES;
*error_code = ERROR_CODE_NO_SPACE_FOR_OBJECT;
apdu_len = -1;
break;
}
}
} else {
object_index = Analog_Value_Instance_To_Index(object_instance);
if (array_index <= BACNET_MAX_PRIORITY) {
if (Present_Value[object_index][array_index - 1] ==
ANALOG_LEVEL_NULL)
apdu_len = encode_application_null(&apdu[0]);
else {
real_value =
Present_Value[object_index][array_index - 1];
apdu_len =
encode_application_real(&apdu[0], real_value);
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_ARRAY_INDEX;
apdu_len = -1;
}
}
break;
case PROP_RELINQUISH_DEFAULT:
real_value = ANALOG_RELINQUISH_DEFAULT;
apdu_len = encode_application_real(&apdu[0], real_value);
break;
#endif
default:
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_UNKNOWN_PROPERTY;
apdu_len = -1;
break;
}
return apdu_len;
}
