bool Device_Write_Property(
BACNET_WRITE_PROPERTY_DATA * wp_data,
BACNET_ERROR_CLASS * error_class,
BACNET_ERROR_CODE * error_code)
{
bool status = false; /* return value */
int len = 0;
BACNET_APPLICATION_DATA_VALUE value;
if (!Device_Valid_Object_Instance_Number(wp_data->object_instance)) {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
return false;
}
/* decode the some of the request */
len =
bacapp_decode_application_data(wp_data->application_data,
wp_data->application_data_len, &value);
/* FIXME: len < application_data_len: more data? */
/* FIXME: len == 0: unable to decode? */
switch (wp_data->object_property) {
case PROP_OBJECT_IDENTIFIER:
if (value.tag == BACNET_APPLICATION_TAG_OBJECT_ID) {
if ((value.type.Object_Id.type == OBJECT_DEVICE) &&
(Device_Set_Object_Instance_Number(value.type.
Object_Id.instance))) {
/* we could send an I-Am broadcast to let the world know */
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_MAX_INFO_FRAMES:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if (value.type.Unsigned_Int <= 255) {
dlmstp_set_max_info_frames(value.type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_MAX_MASTER:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if ((value.type.Unsigned_Int > 0) &&
(value.type.Unsigned_Int <= 127)) {
dlmstp_set_max_master(value.type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_OBJECT_NAME:
if (value.tag == BACNET_APPLICATION_TAG_CHARACTER_STRING) {
uint8_t encoding;
encoding =
characterstring_encoding(&value.type.Character_String);
if (encoding == CHARACTER_ANSI_X34) {
if (characterstring_ansi_copy(&Object_Name[0],
sizeof(Object_Name),
&value.type.Character_String)) {
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_NO_SPACE_TO_WRITE_PROPERTY;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_CHARACTER_SET_NOT_SUPPORTED;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case 9600:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if (value.type.Unsigned_Int > 115200) {
RS485_Set_Baud_Rate(value.type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
default:
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
break;
}
return status;
}
/* Encodes the property APDU and returns the length,
or sets the error, and returns -1 */
int Encode_Property_APDU(
uint8_t * apdu,
BACNET_OBJECT_TYPE object_type,
uint32_t object_instance,
BACNET_PROPERTY_ID property,
int32_t array_index,
BACNET_ERROR_CLASS * error_class,
BACNET_ERROR_CODE * error_code)
{
int apdu_len = -1;
/* initialize the default return values */
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
/* handle each object type */
switch (object_type) {
case OBJECT_DEVICE:
if (Device_Valid_Object_Instance_Number(object_instance)) {
apdu_len =
Device_Encode_Property_APDU(&apdu[0], object_instance,
property, array_index, error_class, error_code);
}
break;
case OBJECT_ANALOG_INPUT:
if (Analog_Input_Valid_Instance(object_instance)) {
apdu_len =
Analog_Input_Encode_Property_APDU(&apdu[0],
object_instance, property, array_index, error_class,
error_code);
}
break;
case OBJECT_ANALOG_VALUE:
if (Analog_Value_Valid_Instance(object_instance)) {
apdu_len =
Analog_Value_Encode_Property_APDU(&apdu[0],
object_instance, property, array_index, error_class,
error_code);
}
break;
case OBJECT_BINARY_INPUT:
if (Binary_Input_Valid_Instance(object_instance)) {
apdu_len =
Binary_Input_Encode_Property_APDU(&apdu[0],
object_instance, property, array_index, error_class,
error_code);
}
break;
case OBJECT_BINARY_OUTPUT:
if (Binary_Output_Valid_Instance(object_instance)) {
apdu_len =
Binary_Output_Encode_Property_APDU(&apdu[0],
object_instance, property, array_index, error_class,
error_code);
}
break;
default:
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNSUPPORTED_OBJECT_TYPE;
break;
}
return apdu_len;
}
/* returns true if successful */
bool Device_Write_Property(
BACNET_WRITE_PROPERTY_DATA * wp_data,
BACNET_ERROR_CLASS * error_class,
BACNET_ERROR_CODE * error_code)
{
bool status = false; /* return value */
int len = 0;
BACNET_APPLICATION_DATA_VALUE value;
if (!Device_Valid_Object_Instance_Number(wp_data->object_instance)) {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
return false;
}
/* decode the some of the request */
len =
bacapp_decode_application_data(wp_data->application_data,
wp_data->application_data_len, &value);
/* FIXME: len < application_data_len: more data? */
/* FIXME: len == 0: unable to decode? */
switch (wp_data->object_property) {
case PROP_OBJECT_IDENTIFIER:
if (value.tag == BACNET_APPLICATION_TAG_OBJECT_ID) {
if ((value.type.Object_Id.type == OBJECT_DEVICE) &&
(Device_Set_Object_Instance_Number(value.type.
Object_Id.instance))) {
/* FIXME: we could send an I-Am broadcast to let the world know */
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_NUMBER_OF_APDU_RETRIES:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
/* FIXME: bounds check? */
apdu_retries_set((uint8_t) value.type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_APDU_TIMEOUT:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
/* FIXME: bounds check? */
apdu_timeout_set((uint16_t) value.type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_VENDOR_IDENTIFIER:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
/* FIXME: bounds check? */
Device_Set_Vendor_Identifier((uint16_t) value.
type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_SYSTEM_STATUS:
if (value.tag == BACNET_APPLICATION_TAG_ENUMERATED) {
/* FIXME: bounds check? */
Device_Set_System_Status((BACNET_DEVICE_STATUS) value.
type.Enumerated);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_OBJECT_NAME:
if (value.tag == BACNET_APPLICATION_TAG_CHARACTER_STRING) {
uint8_t encoding;
encoding =
characterstring_encoding(&value.type.Character_String);
if (encoding == CHARACTER_ANSI_X34) {
status =
Device_Set_Object_Name(characterstring_value
(&value.type.Character_String),
characterstring_length(&value.type.Character_String));
if (!status) {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_NO_SPACE_TO_WRITE_PROPERTY;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_CHARACTER_SET_NOT_SUPPORTED;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
#if defined(BACDL_MSTP)
case PROP_MAX_INFO_FRAMES:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if (value.type.Unsigned_Int <= 255) {
dlmstp_set_max_info_frames((uint8_t) value.
type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_MAX_MASTER:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if ((value.type.Unsigned_Int > 0) &&
(value.type.Unsigned_Int <= 127)) {
dlmstp_set_max_master((uint8_t) value.type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
#endif
default:
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
break;
}
return status;
}
