bacnet_stack/ports/atmega168/h_wp.c

/**************************************************************************
*
* Copyright (C) 2005 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "bacnet/config.h"
#include "bacnet/datalink/datalink.h"
#include "bacnet/basic/tsm/tsm.h"
#include "bacnet/bacdef.h"
#include "bacnet/bacdcode.h"
#include "bacnet/bacerror.h"
#include "bacnet/apdu.h"
#include "bacnet/npdu.h"
#include "bacnet/abort.h"
#include "bacnet/wp.h"
/* demo objects */
#include "bacnet/basic/object/device.h"
#include "bacnet/basic/object/av.h"
#include "bacnet/basic/object/bv.h"

/* too big to reside on stack frame for PIC */
static BACNET_WRITE_PROPERTY_DATA wp_data;

void handler_write_property(
    uint8_t * service_request,
    uint16_t service_len,
    BACNET_ADDRESS * src,
    BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
    int len = 0;
    int pdu_len = 0;
    BACNET_NPDU_DATA npdu_data;
    int bytes_sent = 0;
    BACNET_ADDRESS my_address;

    /* decode the service request only */
    len = wp_decode_service_request(service_request, service_len, &wp_data);
    /* encode the NPDU portion of the packet */
    datalink_get_my_address(&my_address);
    npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
    pdu_len =
        npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
        &npdu_data);
    /* bad decoding or something we didn't understand - send an abort */
    if (len <= 0) {
        len =
            abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, ABORT_REASON_OTHER, true);
    } else if (service_data->segmented_message) {
        len =
            abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
            true);
    } else {
        wp_data.error_class = ERROR_CLASS_OBJECT;
        wp_data.error_code = ERROR_CODE_UNKNOWN_OBJECT;
        switch (wp_data.object_type) {
            case OBJECT_DEVICE:
                if (Device_Write_Property(&wp_data)) {
                    len =
                        encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY);
                } else {
                    len =
                        bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY, wp_data.error_class,
                        wp_data.error_code);
                }
                break;
            case OBJECT_ANALOG_VALUE:
                if (Analog_Value_Write_Property(&wp_data)) {
                    len =
                        encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY);
                } else {
                    len =
                        bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY, wp_data.error_class,
                        wp_data.error_code);
                }
                break;
            case OBJECT_BINARY_VALUE:
                if (Binary_Value_Write_Property(&wp_data)) {
                    len =
                        encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY);
                } else {
                    len =
                        bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY, wp_data.error_class,
                        wp_data.error_code);
                }
                break;
            default:
                len =
                    bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
                    service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY,
                    wp_data.error_class, wp_data.error_code);
                break;
        }
    }
    pdu_len += len;
    bytes_sent =
        datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
        pdu_len);

    return;
}