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Reducing the memory required by ATmega168 port.

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This commit is contained in:
skarg
2007-10-14 01:46:47 +00:00
parent 5d04c62dbe
commit 637b6900e3
8 changed files with 61 additions and 560 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bacnet-stack/ports/atmega168/Makefile
+28 -27
View File
@@ -22,16 +22,16 @@ CSRC = main.c \
timer.c \
rs485.c \
dlmstp.c \
apdu.c \
$(BACNET_CORE)/crc.c
DEMOSRC = h_rp.c \
h_wp.c \
device.c \
ai.c \
$(BACNET_DEMO)/handler/txbuf.c \
$(BACNET_DEMO)/handler/h_whois.c \
$(BACNET_DEMO)/handler/h_rd.c \
$(BACNET_DEMO)/handler/h_dcc.c
$(BACNET_DEMO)/handler/noserv.c \
h_whois.c
# h_wp.c \
CORESRC = \
$(BACNET_CORE)/apdu.c \
@@ -42,36 +42,37 @@ CORESRC = \
$(BACNET_CORE)/bacdcode/bitstring.c \
$(BACNET_CORE)/bacdcode/octetstring.c \
$(BACNET_CORE)/bacdcode/characterstring.c \
$(BACNET_CORE)/bacapp.c \
$(BACNET_CORE)/bacprop.c \
$(BACNET_CORE)/bactext.c \
$(BACNET_CORE)/datetime.c \
$(BACNET_CORE)/indtext.c \
$(BACNET_CORE)/bigend.c \
$(BACNET_CORE)/arf.c \
$(BACNET_CORE)/awf.c \
$(BACNET_CORE)/cov.c \
$(BACNET_CORE)/dcc.c \
$(BACNET_CORE)/iam/iam_client.c \
$(BACNET_CORE)/iam/iam_server.c \
$(BACNET_CORE)/iam/iam_send.c \
$(BACNET_CORE)/ihave.c \
$(BACNET_CORE)/rd.c \
$(BACNET_CORE)/rp.c \
$(BACNET_CORE)/rpm.c \
$(BACNET_CORE)/timesync.c \
$(BACNET_CORE)/whohas.c \
$(BACNET_CORE)/whois.c \
$(BACNET_CORE)/wp.c \
$(BACNET_CORE)/bacaddr.c \
$(BACNET_CORE)/abort.c \
$(BACNET_CORE)/reject.c \
$(BACNET_CORE)/bacerror.c \
$(BACNET_CORE)/filename.c \
$(BACNET_CORE)/tsm.c \
$(BACNET_CORE)/bacaddr.c \
$(BACNET_CORE)/address.c \
$(BACNET_CORE)/version.c
# $(BACNET_CORE)/bacapp.c \
# $(BACNET_CORE)/bacprop.c \
# $(BACNET_CORE)/bactext.c \
# $(BACNET_CORE)/datetime.c \
# $(BACNET_CORE)/indtext.c \
# $(BACNET_CORE)/bigend.c \
# $(BACNET_CORE)/arf.c \
# $(BACNET_CORE)/awf.c \
# $(BACNET_CORE)/cov.c \
# $(BACNET_CORE)/dcc.c \
# $(BACNET_CORE)/iam/iam_client.c \
# $(BACNET_CORE)/ihave.c \
# $(BACNET_CORE)/rd.c \
# $(BACNET_CORE)/rpm.c \
# $(BACNET_CORE)/timesync.c \
# $(BACNET_CORE)/whohas.c \
# $(BACNET_CORE)/wp.c \
# $(BACNET_CORE)/filename.c \
# $(BACNET_CORE)/tsm.c \
# $(BACNET_CORE)/address.c \
## Include Directories
INCLUDES = -I. -I$(BACNET_INCLUDE)
@@ -116,8 +117,8 @@ HEX_EEPROM_FLAGS += --set-section-flags=.eeprom="alloc,load"
HEX_EEPROM_FLAGS += --change-section-lma .eeprom=0 --no-change-warnings
## Objects that must be built in order to link
#OBJECTS = $(COBJ) $(DEMOOBJ)
OBJECTS = $(COBJ)
OBJECTS = $(COBJ) $(DEMOOBJ)
#OBJECTS = $(COBJ)
## Build
TARGET_ELF=$(TARGET).elf
bacnet-stack/ports/atmega168/apdu.c
+12 -342
View File
@@ -1,6 +1,6 @@
/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2005 Steve Karg
Copyright (C) 2007 Steve Karg
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
@@ -39,212 +39,19 @@
#include "bacdef.h"
#include "bacdcode.h"
#include "bacenum.h"
#include "tsm.h"
#include "dcc.h"
#include "iam.h"
/* a simple table for crossing the services supported */
static BACNET_SERVICES_SUPPORTED
confirmed_service_supported[MAX_BACNET_CONFIRMED_SERVICE] = {
SERVICE_SUPPORTED_ACKNOWLEDGE_ALARM,
SERVICE_SUPPORTED_CONFIRMED_COV_NOTIFICATION,
SERVICE_SUPPORTED_CONFIRMED_EVENT_NOTIFICATION,
SERVICE_SUPPORTED_GET_ALARM_SUMMARY,
SERVICE_SUPPORTED_GET_ENROLLMENT_SUMMARY,
SERVICE_SUPPORTED_SUBSCRIBE_COV,
SERVICE_SUPPORTED_ATOMIC_READ_FILE,
SERVICE_SUPPORTED_ATOMIC_WRITE_FILE,
SERVICE_SUPPORTED_ADD_LIST_ELEMENT,
SERVICE_SUPPORTED_REMOVE_LIST_ELEMENT,
SERVICE_SUPPORTED_CREATE_OBJECT,
SERVICE_SUPPORTED_DELETE_OBJECT,
SERVICE_SUPPORTED_READ_PROPERTY,
SERVICE_SUPPORTED_READ_PROPERTY_CONDITIONAL,
SERVICE_SUPPORTED_READ_PROPERTY_MULTIPLE,
SERVICE_SUPPORTED_WRITE_PROPERTY,
SERVICE_SUPPORTED_WRITE_PROPERTY_MULTIPLE,
SERVICE_SUPPORTED_DEVICE_COMMUNICATION_CONTROL,
SERVICE_SUPPORTED_PRIVATE_TRANSFER,
SERVICE_SUPPORTED_TEXT_MESSAGE,
SERVICE_SUPPORTED_REINITIALIZE_DEVICE,
SERVICE_SUPPORTED_VT_OPEN,
SERVICE_SUPPORTED_VT_CLOSE,
SERVICE_SUPPORTED_VT_DATA,
SERVICE_SUPPORTED_AUTHENTICATE,
SERVICE_SUPPORTED_REQUEST_KEY,
SERVICE_SUPPORTED_READ_RANGE,
SERVICE_SUPPORTED_LIFE_SAFETY_OPERATION,
SERVICE_SUPPORTED_SUBSCRIBE_COV_PROPERTY,
SERVICE_SUPPORTED_GET_EVENT_INFORMATION
};
/* a simple table for crossing the services supported */
static BACNET_SERVICES_SUPPORTED
unconfirmed_service_supported[MAX_BACNET_UNCONFIRMED_SERVICE] = {
SERVICE_SUPPORTED_I_AM,
SERVICE_SUPPORTED_I_HAVE,
SERVICE_SUPPORTED_UNCONFIRMED_COV_NOTIFICATION,
SERVICE_SUPPORTED_UNCONFIRMED_EVENT_NOTIFICATION,
SERVICE_SUPPORTED_UNCONFIRMED_PRIVATE_TRANSFER,
SERVICE_SUPPORTED_UNCONFIRMED_TEXT_MESSAGE,
SERVICE_SUPPORTED_TIME_SYNCHRONIZATION,
SERVICE_SUPPORTED_WHO_HAS,
SERVICE_SUPPORTED_WHO_IS,
SERVICE_SUPPORTED_UTC_TIME_SYNCHRONIZATION
};
/* Confirmed Function Handlers */
/* If they are not set, they are handled by a reject message */
static confirmed_function Confirmed_Function[MAX_BACNET_CONFIRMED_SERVICE];
void apdu_set_confirmed_handler(BACNET_CONFIRMED_SERVICE service_choice,
confirmed_function pFunction)
{
if (service_choice < MAX_BACNET_CONFIRMED_SERVICE)
Confirmed_Function[service_choice] = pFunction;
}
/* Allow the APDU handler to automatically reject */
static confirmed_function Unrecognized_Service_Handler;
void apdu_set_unrecognized_service_handler_handler(confirmed_function
pFunction)
{
Unrecognized_Service_Handler = pFunction;
}
/* Unconfirmed Function Handlers */
/* If they are not set, they are not handled */
static unconfirmed_function
Unconfirmed_Function[MAX_BACNET_UNCONFIRMED_SERVICE] = {
NULL
};
void apdu_set_unconfirmed_handler(BACNET_UNCONFIRMED_SERVICE
service_choice, unconfirmed_function pFunction)
{
if (service_choice < MAX_BACNET_UNCONFIRMED_SERVICE)
Unconfirmed_Function[service_choice] = pFunction;
}
#include "handlers.h"
bool apdu_service_supported(BACNET_SERVICES_SUPPORTED service_supported)
{
int i = 0;
bool status = false;
bool found = false;
if (service_supported < MAX_BACNET_SERVICES_SUPPORTED) {
/* is it a confirmed service? */
for (i = 0; i < MAX_BACNET_CONFIRMED_SERVICE; i++) {
if (confirmed_service_supported[i] == service_supported) {
if (Confirmed_Function[i] != NULL)
status = true;
found = true;
break;
}
}
if (!found) {
/* is it an unconfirmed service? */
for (i = 0; i < MAX_BACNET_UNCONFIRMED_SERVICE; i++) {
if (unconfirmed_service_supported[i] == service_supported) {
if (Unconfirmed_Function[i] != NULL)
status = true;
break;
}
}
}
if (service_supported == SERVICE_SUPPORTED_READ_PROPERTY) {
status = true;
}
return status;
}
/* Confirmed ACK Function Handlers */
static void *Confirmed_ACK_Function[MAX_BACNET_CONFIRMED_SERVICE];
void apdu_set_confirmed_simple_ack_handler(BACNET_CONFIRMED_SERVICE
service_choice, confirmed_simple_ack_function pFunction)
{
switch (service_choice) {
case SERVICE_CONFIRMED_ACKNOWLEDGE_ALARM:
case SERVICE_CONFIRMED_COV_NOTIFICATION:
case SERVICE_CONFIRMED_EVENT_NOTIFICATION:
case SERVICE_CONFIRMED_SUBSCRIBE_COV:
case SERVICE_CONFIRMED_SUBSCRIBE_COV_PROPERTY:
case SERVICE_CONFIRMED_LIFE_SAFETY_OPERATION:
/* Object Access Services */
case SERVICE_CONFIRMED_ADD_LIST_ELEMENT:
case SERVICE_CONFIRMED_REMOVE_LIST_ELEMENT:
case SERVICE_CONFIRMED_DELETE_OBJECT:
case SERVICE_CONFIRMED_WRITE_PROPERTY:
case SERVICE_CONFIRMED_WRITE_PROPERTY_MULTIPLE:
/* Remote Device Management Services */
case SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL:
case SERVICE_CONFIRMED_TEXT_MESSAGE:
case SERVICE_CONFIRMED_REINITIALIZE_DEVICE:
/* Virtual Terminal Services */
case SERVICE_CONFIRMED_VT_CLOSE:
/* Security Services */
case SERVICE_CONFIRMED_REQUEST_KEY:
Confirmed_ACK_Function[service_choice] = (void *) pFunction;
break;
default:
break;
}
}
void apdu_set_confirmed_ack_handler(BACNET_CONFIRMED_SERVICE
service_choice, confirmed_ack_function pFunction)
{
switch (service_choice) {
case SERVICE_CONFIRMED_GET_ALARM_SUMMARY:
case SERVICE_CONFIRMED_GET_ENROLLMENT_SUMMARY:
case SERVICE_CONFIRMED_GET_EVENT_INFORMATION:
/* File Access Services */
case SERVICE_CONFIRMED_ATOMIC_READ_FILE:
case SERVICE_CONFIRMED_ATOMIC_WRITE_FILE:
/* Object Access Services */
case SERVICE_CONFIRMED_CREATE_OBJECT:
case SERVICE_CONFIRMED_READ_PROPERTY:
case SERVICE_CONFIRMED_READ_PROPERTY_CONDITIONAL:
case SERVICE_CONFIRMED_READ_PROPERTY_MULTIPLE:
case SERVICE_CONFIRMED_READ_RANGE:
/* Remote Device Management Services */
case SERVICE_CONFIRMED_PRIVATE_TRANSFER:
/* Virtual Terminal Services */
case SERVICE_CONFIRMED_VT_OPEN:
case SERVICE_CONFIRMED_VT_DATA:
/* Security Services */
case SERVICE_CONFIRMED_AUTHENTICATE:
Confirmed_ACK_Function[service_choice] = (void *) pFunction;
break;
default:
break;
}
}
static error_function Error_Function[MAX_BACNET_CONFIRMED_SERVICE];
void apdu_set_error_handler(BACNET_CONFIRMED_SERVICE service_choice,
error_function pFunction)
{
if (service_choice < MAX_BACNET_CONFIRMED_SERVICE)
Error_Function[service_choice] = pFunction;
}
static abort_function Abort_Function;
void apdu_set_abort_handler(abort_function pFunction)
{
Abort_Function = pFunction;
}
static reject_function Reject_Function;
void apdu_set_reject_handler(reject_function pFunction)
{
Reject_Function = pFunction;
}
uint16_t apdu_decode_confirmed_service_request(uint8_t * apdu, /* APDU data */
uint16_t apdu_len,
BACNET_CONFIRMED_SERVICE_DATA * service_data,
@@ -276,18 +83,10 @@ void apdu_handler(BACNET_ADDRESS * src, uint8_t * apdu, /* APDU data */
uint16_t apdu_len)
{
BACNET_CONFIRMED_SERVICE_DATA service_data = { 0 };
BACNET_CONFIRMED_SERVICE_ACK_DATA service_ack_data = { 0 };
uint8_t invoke_id = 0;
uint8_t service_choice = 0;
uint8_t *service_request = NULL;
uint16_t service_request_len = 0;
uint16_t len = 0; /* counts where we are in PDU */
uint8_t tag_number = 0;
uint32_t len_value = 0;
int error_code = 0;
int error_class = 0;
uint8_t reason = 0;
bool server = false;
if (apdu) {
/* PDU Type */
@@ -297,158 +96,29 @@ void apdu_handler(BACNET_ADDRESS * src, uint8_t * apdu, /* APDU data */
apdu_len,
&service_data,
&service_choice, &service_request, &service_request_len);
/* When network communications are completely disabled,
only DeviceCommunicationControl and ReinitializeDevice APDUs
shall be processed and no messages shall be initiated. */
if (dcc_communication_disabled() &&
((service_choice !=
SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL)
&& (service_choice !=
SERVICE_CONFIRMED_REINITIALIZE_DEVICE)))
break;
if ((service_choice < MAX_BACNET_CONFIRMED_SERVICE) &&
(Confirmed_Function[service_choice]))
Confirmed_Function[service_choice] (service_request,
if (service_choice == SERVICE_CONFIRMED_READ_PROPERTY) {
handler_read_property(service_request,
service_request_len, src, &service_data);
else if (Unrecognized_Service_Handler)
Unrecognized_Service_Handler(service_request,
} else {
handler_unrecognized_service(service_request,
service_request_len, src, &service_data);
}
break;
case PDU_TYPE_UNCONFIRMED_SERVICE_REQUEST:
if (dcc_communication_disabled())
break;
service_choice = apdu[1];
service_request = &apdu[2];
service_request_len = apdu_len - 2;
if (service_choice < MAX_BACNET_UNCONFIRMED_SERVICE) {
if (Unconfirmed_Function[service_choice])
Unconfirmed_Function[service_choice] (service_request,
if (service_choice == SERVICE_UNCONFIRMED_WHO_IS) {
handler_who_is(service_request,
service_request_len, src);
}
break;
case PDU_TYPE_SIMPLE_ACK:
invoke_id = apdu[1];
service_choice = apdu[2];
switch (service_choice) {
case SERVICE_CONFIRMED_ACKNOWLEDGE_ALARM:
case SERVICE_CONFIRMED_COV_NOTIFICATION:
case SERVICE_CONFIRMED_EVENT_NOTIFICATION:
case SERVICE_CONFIRMED_SUBSCRIBE_COV:
case SERVICE_CONFIRMED_SUBSCRIBE_COV_PROPERTY:
case SERVICE_CONFIRMED_LIFE_SAFETY_OPERATION:
/* Object Access Services */
case SERVICE_CONFIRMED_ADD_LIST_ELEMENT:
case SERVICE_CONFIRMED_REMOVE_LIST_ELEMENT:
case SERVICE_CONFIRMED_DELETE_OBJECT:
case SERVICE_CONFIRMED_WRITE_PROPERTY:
case SERVICE_CONFIRMED_WRITE_PROPERTY_MULTIPLE:
/* Remote Device Management Services */
case SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL:
case SERVICE_CONFIRMED_REINITIALIZE_DEVICE:
case SERVICE_CONFIRMED_TEXT_MESSAGE:
/* Virtual Terminal Services */
case SERVICE_CONFIRMED_VT_CLOSE:
/* Security Services */
case SERVICE_CONFIRMED_REQUEST_KEY:
if (Confirmed_ACK_Function[service_choice]) {
((confirmed_simple_ack_function)
Confirmed_ACK_Function[service_choice]) (src,
invoke_id);
}
tsm_free_invoke_id(invoke_id);
break;
default:
break;
}
break;
case PDU_TYPE_COMPLEX_ACK:
service_ack_data.segmented_message =
(apdu[0] & BIT3) ? true : false;
service_ack_data.more_follows =
(apdu[0] & BIT2) ? true : false;
invoke_id = service_ack_data.invoke_id = apdu[1];
len = 2;
if (service_ack_data.segmented_message) {
service_ack_data.sequence_number = apdu[len++];
service_ack_data.proposed_window_number = apdu[len++];
}
service_choice = apdu[len++];
service_request = &apdu[len];
service_request_len = apdu_len - len;
switch (service_choice) {
case SERVICE_CONFIRMED_GET_ALARM_SUMMARY:
case SERVICE_CONFIRMED_GET_ENROLLMENT_SUMMARY:
case SERVICE_CONFIRMED_GET_EVENT_INFORMATION:
/* File Access Services */
case SERVICE_CONFIRMED_ATOMIC_READ_FILE:
case SERVICE_CONFIRMED_ATOMIC_WRITE_FILE:
/* Object Access Services */
case SERVICE_CONFIRMED_CREATE_OBJECT:
case SERVICE_CONFIRMED_READ_PROPERTY:
case SERVICE_CONFIRMED_READ_PROPERTY_CONDITIONAL:
case SERVICE_CONFIRMED_READ_PROPERTY_MULTIPLE:
case SERVICE_CONFIRMED_READ_RANGE:
case SERVICE_CONFIRMED_PRIVATE_TRANSFER:
/* Virtual Terminal Services */
case SERVICE_CONFIRMED_VT_OPEN:
case SERVICE_CONFIRMED_VT_DATA:
/* Security Services */
case SERVICE_CONFIRMED_AUTHENTICATE:
if (Confirmed_ACK_Function[service_choice]) {
((confirmed_ack_function)
Confirmed_ACK_Function[service_choice])
(service_request, service_request_len, src,
&service_ack_data);
}
tsm_free_invoke_id(invoke_id);
break;
default:
break;
}
break;
case PDU_TYPE_SEGMENT_ACK:
/* FIXME: what about a denial of service attack here?
we could check src to see if that matched the tsm */
tsm_free_invoke_id(invoke_id);
break;
case PDU_TYPE_ERROR:
invoke_id = apdu[1];
service_choice = apdu[2];
len = 3;
len +=
decode_tag_number_and_value(&apdu[len], &tag_number,
&len_value);
/* FIXME: we could validate that the tag is enumerated... */
len += decode_enumerated(&apdu[len], len_value, &error_class);
len +=
decode_tag_number_and_value(&apdu[len], &tag_number,
&len_value);
/* FIXME: we could validate that the tag is enumerated... */
len += decode_enumerated(&apdu[len], len_value, &error_code);
if (service_choice < MAX_BACNET_CONFIRMED_SERVICE) {
if (Error_Function[service_choice])
Error_Function[service_choice] (src,
invoke_id,
(BACNET_ERROR_CLASS)error_class,
(BACNET_ERROR_CODE)error_code);
}
tsm_free_invoke_id(invoke_id);
break;
case PDU_TYPE_REJECT:
invoke_id = apdu[1];
reason = apdu[2];
if (Reject_Function)
Reject_Function(src, invoke_id, reason);
tsm_free_invoke_id(invoke_id);
break;
case PDU_TYPE_ABORT:
server = apdu[0] & 0x01;
invoke_id = apdu[1];
reason = apdu[2];
if (Abort_Function)
Abort_Function(src, invoke_id, reason, server);
tsm_free_invoke_id(invoke_id);
break;
default:
break;
}
bacnet-stack/ports/atmega168/device.c
+7 -23
View File
@@ -53,19 +53,10 @@ static uint32_t Object_Instance_Number = 12345;
static char Object_Name[32] = "ATmega Device";
static BACNET_DEVICE_STATUS System_Status = STATUS_OPERATIONAL;
BACNET_REINITIALIZED_STATE_OF_DEVICE Reinitialize_State =
REINITIALIZED_STATE_IDLE;
void Device_Reinit(void)
{
dcc_set_status_duration(COMMUNICATION_ENABLE, 0);
Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE);
}
void Device_Init(void)
{
Reinitialize_State = REINITIALIZED_STATE_IDLE;
dcc_set_status_duration(COMMUNICATION_ENABLE, 0);
/* Reinitialize_State = REINITIALIZED_STATE_IDLE; */
/* dcc_set_status_duration(COMMUNICATION_ENABLE, 0); */
/* FIXME: Get the data from the eeprom */
/* I2C_Read_Block(EEPROM_DEVICE_ADDRESS,
(char *)&Object_Instance_Number,
@@ -79,6 +70,7 @@ uint32_t Device_Object_Instance_Number(void)
return Object_Instance_Number;
}
#if 0
bool Device_Set_Object_Instance_Number(uint32_t object_id)
{
bool status = true; /* return value */
@@ -96,6 +88,7 @@ bool Device_Set_Object_Instance_Number(uint32_t object_id)
return status;
}
#endif
bool Device_Valid_Object_Instance_Number(uint32_t object_id)
{
@@ -104,17 +97,6 @@ bool Device_Valid_Object_Instance_Number(uint32_t object_id)
(object_id == BACNET_MAX_INSTANCE));
}
BACNET_DEVICE_STATUS Device_System_Status(void)
{
return System_Status;
}
void Device_Set_System_Status(BACNET_DEVICE_STATUS status)
{
if (status < MAX_DEVICE_STATUS)
System_Status = status;
}
uint16_t Device_Vendor_Identifier(void)
{
return BACNET_VENDOR_ID;
@@ -280,7 +262,7 @@ int Device_Encode_Property_APDU(uint8_t * apdu,
break;
case PROP_SYSTEM_STATUS:
apdu_len =
encode_application_enumerated(&apdu[0], Device_System_Status());
encode_application_enumerated(&apdu[0], System_Status);
break;
case PROP_VENDOR_NAME:
characterstring_init_ansi(&char_string, BACNET_VENDOR_NAME);
@@ -460,6 +442,7 @@ int Device_Encode_Property_APDU(uint8_t * apdu,
return apdu_len;
}
#if 0
bool Device_Write_Property(BACNET_WRITE_PROPERTY_DATA * wp_data,
BACNET_ERROR_CLASS * error_class, BACNET_ERROR_CODE * error_code)
{
@@ -574,3 +557,4 @@ bool Device_Write_Property(BACNET_WRITE_PROPERTY_DATA * wp_data,
return status;
}
#endif
bacnet-stack/ports/atmega168/h_rp.c
+1 -2
View File
@@ -66,8 +66,7 @@ int Encode_Property_APDU(
/* handle each object type */
switch(object_type) {
case OBJECT_DEVICE:
if ((object_instance == Device_Object_Instance_Number()) ||
(object_instance == BACNET_MAX_INSTANCE)) {
if (Device_Valid_Object_Instance_Number(object_instance)) {
apdu_len = Device_Encode_Property_APDU(
&apdu[0],
property,
bacnet-stack/ports/atmega168/h_whois.c
+5 -2
View File
@@ -37,6 +37,8 @@
#include "client.h"
#include "txbuf.h"
bool Send_I_Am = true;
void handler_who_is(uint8_t * service_request,
uint16_t service_len, BACNET_ADDRESS * src)
{
@@ -56,8 +58,9 @@ void handler_who_is(uint8_t * service_request,
||
/* BACnet wildcard is the max instance number - everyone responds */
((BACNET_MAX_INSTANCE >= (uint32_t) low_limit) &&
(BACNET_MAX_INSTANCE <= (uint32_t) high_limit)))
iam_send(&Handler_Transmit_Buffer[0]);
(BACNET_MAX_INSTANCE <= (uint32_t) high_limit))) {
Send_I_Am = true;
}
}
return;
bacnet-stack/ports/atmega168/iam_send.c
-71
View File
@@ -1,71 +0,0 @@
/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2005 Steve Karg
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
The Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA.
As a special exception, if other files instantiate templates or
use macros or inline functions from this file, or you compile
this file and link it with other works to produce a work based
on this file, this file does not by itself cause the resulting
work to be covered by the GNU General Public License. However
the source code for this file must still be made available in
accordance with section (3) of the GNU General Public License.
This exception does not invalidate any other reasons why a work
based on this file might be covered by the GNU General Public
License.
-------------------------------------------
####COPYRIGHTEND####*/
#include <stdint.h>
#include "bacenum.h"
#include "bacdef.h"
#include "npdu.h"
#include "dcc.h"
#include "datalink.h"
#include "device.h"
#include "bacdcode.h"
#include "address.h"
#include "iam.h"
int iam_send(uint8_t * buffer)
{
int len = 0;
int pdu_len = 0;
BACNET_ADDRESS dest;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
/* if we are forbidden to send, don't send! */
if (!dcc_communication_enabled())
return 0;
/* I-Am is a global broadcast */
datalink_get_broadcast_address(&dest);
/* encode the NPDU portion of the packet */
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len = npdu_encode_pdu(&buffer[0], &dest, NULL, &npdu_data);
/* encode the APDU portion of the packet */
len = iam_encode_apdu(&buffer[pdu_len],
Device_Object_Instance_Number(),
MAX_APDU, SEGMENTATION_NONE, Device_Vendor_Identifier());
pdu_len += len;
/* send data */
bytes_sent = datalink_send_pdu(&dest, &npdu_data, &buffer[0], pdu_len);
return bytes_sent;
}
bacnet-stack/ports/atmega168/main.c
+8 -20
View File
@@ -36,12 +36,13 @@
/* For porting to IAR, see:
http://www.avrfreaks.net/wiki/index.php/Documentation:AVR_GCC/IarToAvrgcc*/
/* Notice: Fuse Bit Settings
*/
/* broadcast an I-Am on startup */
extern bool Send_I_Am;
/* dummy function */
bool dcc_communication_enabled(void) {
return true;
}
void init(void)
{
@@ -143,17 +144,6 @@ void input_switch_read(void)
}
}
#if defined(TEST_MSTP)
void apdu_handler(BACNET_ADDRESS * src, /* source address */
uint8_t * apdu, /* APDU data */
uint16_t pdu_len) /* for confirmed messages */
{
(void)src;
(void)apdu;
(void)pdu_len;
}
#endif
static uint8_t PDUBuffer[MAX_MPDU];
int main(void)
{
@@ -167,11 +157,9 @@ int main(void)
dlmstp_set_max_info_frames(1);
#endif
datalink_init(NULL);
/* broadcast an I-Am on startup */
#if !defined(TEST_MSTP)
iam_send(&Handler_Transmit_Buffer[0]);
#endif
for (;;) {
if (Send_I_Am)
iam_send(&Handler_Transmit_Buffer[0]);
input_switch_read();
task_milliseconds();
/* other tasks */
bacnet-stack/ports/atmega168/rs485.c
-73
View File
@@ -43,18 +43,6 @@ static uint8_t LED3_Off_Timer;
/* baud rate */
static uint32_t RS485_Baud = 9600;
/* autobaud - switch baud on errors if autobaud is true */
static bool RS485_Autobaud = true;
/* we saw some data, so we are on an active wire */
static uint8_t RS485_Data_Count;
/* count of errors before autobaud switching */
static uint8_t RS485_Error_Count;
/* time limit */
#define RS485_ERROR_TIMEOUT 1000
/* millisecond timer to limit error window */
static uint16_t RS485_Error_Timer = RS485_ERROR_TIMEOUT;
/* number of errors in 1000ms before autobaud switching */
#define RS485_ERROR_LIMIT 30
/* The minimum time after the end of the stop bit of the final octet of a */
/* received frame before a node may enable its EIA-485 driver: 40 bit times. */
@@ -153,34 +141,6 @@ bool RS485_Set_Baud_Rate(uint32_t baud)
return valid;
}
void RS485_Next_Baud_Rate(void)
{
uint32_t baud;
switch (RS485_Baud) {
case 9600:
baud = 19200;
break;
case 19200:
baud = 38400;
break;
case 38400:
baud = 57600;
break;
case 57600:
baud = 76800;
break;
case 76800:
baud = 115200;
break;
case 115200:
default:
baud = 9600;
break;
}
RS485_Set_Baud_Rate(baud);
}
/****************************************************************************
* DESCRIPTION: Waits on the SilenceTimer for 40 bits.
* RETURN: none
@@ -241,9 +201,6 @@ void RS485_LED_Timers(void)
BIT_SET(PORTD,PD7);
}
}
if (RS485_Error_Timer) {
RS485_Error_Timer--;
}
}
/****************************************************************************
@@ -328,34 +285,6 @@ bool RS485_ReceiveError(void)
do {
dummy_data = UDR0;
} while (BIT_CHECK(UCSR0A,RXC0));
/* count errors during autobaud */
if (RS485_Error_Count < RS485_ERROR_LIMIT) {
RS485_Error_Count++;
} else {
if (RS485_Autobaud && RS485_Error_Timer) {
/* We are in autobaud mode, and there were excessive
errors while the timer was counting down */
RS485_Next_Baud_Rate();
RS485_Error_Timer = RS485_ERROR_TIMEOUT;
RS485_Error_Count = 0;
} else if (RS485_Autobaud) {
/* autobaud, but timer expired */
RS485_Autobaud = false;
}
}
} else {
if (RS485_Autobaud) {
if ((RS485_Error_Timer == 0) && (RS485_Error_Count == 0)) {
if (RS485_Data_Count > 8) {
/* no errors, timer expired, and we saw data */
RS485_Autobaud = false;
} else {
/* no errors, timer expired, and no data*/
RS485_Error_Timer = RS485_ERROR_TIMEOUT;
}
}
}
}
return ReceiveError;
@@ -376,8 +305,6 @@ bool RS485_DataAvailable(uint8_t *data)
*data = UDR0;
DataAvailable = true;
RS485_LED1_On();
if (RS485_Data_Count < 0xFF)
RS485_Data_Count++;
}
return DataAvailable;