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bacnet-stack/ports/stm32f10x/bo.c
Patrick Grimm 01349ec9e8 fork from http://sourceforge.net/projects/bacnet/
2013-03-21 22:53:31 +01:00

521 lines
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/**************************************************************************
*
* Copyright (C) 2011 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.
*
*********************************************************************/
/* Binary Output Objects - customize for your use */
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "bacdef.h"
#include "bacdcode.h"
#include "bacenum.h"
#include "config.h"
#include "wp.h"
#include "hardware.h"
#include "handlers.h"
#include "bo.h"
#ifndef MAX_BINARY_OUTPUTS
#error Please define MAX_BINARY_OUTPUTS
#endif
/* When all the priorities are level null, the present value returns */
/* the Relinquish Default value */
#define RELINQUISH_DEFAULT BINARY_INACTIVE
/* Here is our Priority Array.*/
static uint8_t Binary_Output_Level[MAX_BINARY_OUTPUTS][BACNET_MAX_PRIORITY];
/* Writable out-of-service allows others to play with our Present Value */
/* without changing the physical output */
static uint8_t Out_Of_Service[MAX_BINARY_OUTPUTS];
/* polarity - normal or inverse */
static uint8_t Polarity[MAX_BINARY_OUTPUTS];
/* These three arrays are used by the ReadPropertyMultiple handler */
static const int Binary_Output_Properties_Required[] = {
PROP_OBJECT_IDENTIFIER,
PROP_OBJECT_NAME,
PROP_OBJECT_TYPE,
PROP_PRESENT_VALUE,
PROP_STATUS_FLAGS,
PROP_EVENT_STATE,
PROP_OUT_OF_SERVICE,
PROP_POLARITY,
PROP_PRIORITY_ARRAY,
PROP_RELINQUISH_DEFAULT,
-1
};
static const int Binary_Output_Properties_Optional[] = {
PROP_ACTIVE_TEXT,
PROP_INACTIVE_TEXT,
-1
};
static const int Binary_Output_Properties_Proprietary[] = {
-1
};
void Binary_Output_Property_Lists(
const int **pRequired,
const int **pOptional,
const int **pProprietary)
{
if (pRequired)
*pRequired = Binary_Output_Properties_Required;
if (pOptional)
*pOptional = Binary_Output_Properties_Optional;
if (pProprietary)
*pProprietary = Binary_Output_Properties_Proprietary;
return;
}
/* we simply have 0-n object instances. */
bool Binary_Output_Valid_Instance(
uint32_t object_instance)
{
if (object_instance < MAX_BINARY_OUTPUTS)
return true;
return false;
}
/* we simply have 0-n object instances. */
unsigned Binary_Output_Count(
void)
{
return MAX_BINARY_OUTPUTS;
}
/* we simply have 0-n object instances. */
uint32_t Binary_Output_Index_To_Instance(
unsigned index)
{
return index;
}
/* we simply have 0-n object instances. */
unsigned Binary_Output_Instance_To_Index(
uint32_t object_instance)
{
unsigned index = MAX_BINARY_OUTPUTS;
if (object_instance < MAX_BINARY_OUTPUTS)
index = object_instance;
return index;
}
static BACNET_BINARY_PV Present_Value(
unsigned int index)
{
BACNET_BINARY_PV value = RELINQUISH_DEFAULT;
BACNET_BINARY_PV current_value = RELINQUISH_DEFAULT;
unsigned i = 0;
if (index < MAX_BINARY_OUTPUTS) {
for (i = 0; i < BACNET_MAX_PRIORITY; i++) {
current_value = (BACNET_BINARY_PV) Binary_Output_Level[index][i];
if (current_value != BINARY_NULL) {
value = (BACNET_BINARY_PV) Binary_Output_Level[index][i];
break;
}
}
}
return value;
}
BACNET_BINARY_PV Binary_Output_Present_Value(
uint32_t object_instance)
{
unsigned index = 0;
index = Binary_Output_Instance_To_Index(object_instance);
return Present_Value(index);
}
bool Binary_Output_Present_Value_Set(
uint32_t instance,
BACNET_BINARY_PV binary_value,
unsigned priority)
{ /* 0..15 */
bool status = false;
if (instance < MAX_BINARY_OUTPUTS) {
if (priority < BACNET_MAX_PRIORITY) {
Binary_Output_Level[instance][priority] = (uint8_t) binary_value;
status = true;
}
}
return status;
}
static void Binary_Output_Polarity_Set(
uint32_t instance,
BACNET_POLARITY polarity)
{
if (instance < MAX_BINARY_OUTPUTS) {
if (polarity < MAX_POLARITY) {
Polarity[instance] = polarity;
}
}
}
BACNET_POLARITY Binary_Output_Polarity(
uint32_t instance)
{
BACNET_POLARITY polarity = POLARITY_NORMAL;
if (instance < MAX_BINARY_OUTPUTS) {
polarity = (BACNET_POLARITY) Polarity[instance];
}
return polarity;
}
static void Binary_Output_Out_Of_Service_Set(
uint32_t instance,
bool flag)
{
if (instance < MAX_BINARY_OUTPUTS) {
Out_Of_Service[instance] = flag;
}
}
bool Binary_Output_Out_Of_Service(
uint32_t instance)
{
bool flag = false;
if (instance < MAX_BINARY_OUTPUTS) {
flag = Out_Of_Service[instance];
}
return flag;
}
/* note: the object name must be unique within this device */
bool Binary_Output_Object_Name(
uint32_t object_instance,
BACNET_CHARACTER_STRING * object_name)
{
static char text_string[16] = "BO-0"; /* okay for single thread */
bool status = false;
if (object_instance < MAX_BINARY_OUTPUTS) {
text_string[3] = '0' + (uint8_t) object_instance;
status = characterstring_init_ansi(object_name, text_string);
}
return status;
}
/* return apdu len, or -1 on error */
int Binary_Output_Read_Property(
BACNET_READ_PROPERTY_DATA * rpdata)
{
int len = 0;
int apdu_len = 0; /* return value */
BACNET_BIT_STRING bit_string;
BACNET_CHARACTER_STRING char_string;
BACNET_BINARY_PV present_value = BINARY_INACTIVE;
unsigned object_index = 0;
unsigned i = 0;
bool state = false;
uint8_t *apdu = NULL;
if ((rpdata->application_data == NULL) ||
(rpdata->application_data_len == 0)) {
return 0;
}
apdu = rpdata->application_data;
switch (rpdata->object_property) {
/* object id, object name, object type are handled in Device object */
case PROP_PRESENT_VALUE:
present_value =
Binary_Output_Present_Value(rpdata->object_instance);
apdu_len = encode_application_enumerated(&apdu[0], present_value);
break;
case PROP_STATUS_FLAGS:
/* note: see the details in the standard on how to use these */
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:
/* note: see the details in the standard on how to use this */
apdu_len =
encode_application_enumerated(&apdu[0], EVENT_STATE_NORMAL);
break;
case PROP_OUT_OF_SERVICE:
object_index =
Binary_Output_Instance_To_Index(rpdata->object_instance);
state = Out_Of_Service[object_index];
apdu_len = encode_application_boolean(&apdu[0], state);
break;
case PROP_POLARITY:
object_index =
Binary_Output_Instance_To_Index(rpdata->object_instance);
apdu_len =
encode_application_enumerated(&apdu[0],
Polarity[object_index]);
break;
case PROP_PRIORITY_ARRAY:
/* Array element zero is the number of elements in the array */
if (rpdata->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 (rpdata->array_index == BACNET_ARRAY_ALL) {
object_index =
Binary_Output_Instance_To_Index(rpdata->object_instance);
for (i = 0; i < BACNET_MAX_PRIORITY; i++) {
/* FIXME: check if we have room before adding it to APDU */
present_value = (BACNET_BINARY_PV)
Binary_Output_Level[object_index][i];
if (present_value == BINARY_NULL) {
len = encode_application_null(&apdu[apdu_len]);
} else {
len =
encode_application_enumerated(&apdu[apdu_len],
present_value);
}
/* add it if we have room */
if ((apdu_len + len) < MAX_APDU)
apdu_len += len;
else {
rpdata->error_class = ERROR_CLASS_SERVICES;
rpdata->error_code = ERROR_CODE_NO_SPACE_FOR_OBJECT;
apdu_len = BACNET_STATUS_ERROR;
break;
}
}
} else {
object_index =
Binary_Output_Instance_To_Index(rpdata->object_instance);
if (rpdata->array_index <= BACNET_MAX_PRIORITY) {
present_value = (BACNET_BINARY_PV)
Binary_Output_Level[object_index][rpdata->array_index -
1];
if (present_value == BINARY_NULL) {
apdu_len = encode_application_null(&apdu[apdu_len]);
} else {
apdu_len =
encode_application_enumerated(&apdu[apdu_len],
present_value);
}
} else {
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_INVALID_ARRAY_INDEX;
apdu_len = BACNET_STATUS_ERROR;
}
}
break;
case PROP_RELINQUISH_DEFAULT:
present_value = RELINQUISH_DEFAULT;
apdu_len = encode_application_enumerated(&apdu[0], present_value);
break;
case PROP_ACTIVE_TEXT:
characterstring_init_ansi(&char_string, "on");
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_INACTIVE_TEXT:
characterstring_init_ansi(&char_string, "off");
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
default:
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_UNKNOWN_PROPERTY;
apdu_len = BACNET_STATUS_ERROR;
break;
}
/* only array properties can have array options */
if ((apdu_len >= 0) && (rpdata->object_property != PROP_PRIORITY_ARRAY) &&
(rpdata->array_index != BACNET_ARRAY_ALL)) {
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
apdu_len = BACNET_STATUS_ERROR;
}
return apdu_len;
}
/* returns true if successful */
bool Binary_Output_Write_Property(
BACNET_WRITE_PROPERTY_DATA * wp_data)
{
bool status = false; /* return value */
unsigned int priority = 0;
BACNET_BINARY_PV level = BINARY_NULL;
int len = 0;
BACNET_APPLICATION_DATA_VALUE value;
/* 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? */
if (len < 0) {
/* error while decoding - a value larger than we can handle */
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
return false;
}
if ((wp_data->object_property != PROP_PRIORITY_ARRAY) &&
(wp_data->array_index != BACNET_ARRAY_ALL)) {
/* only array properties can have array options */
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
return false;
}
switch (wp_data->object_property) {
case PROP_PRESENT_VALUE:
status =
WPValidateArgType(&value, BACNET_APPLICATION_TAG_ENUMERATED,
&wp_data->error_class, &wp_data->error_code);
if (status) {
priority = wp_data->priority;
/* Command priority 6 is reserved for use by Minimum On/Off
algorithm and may not be used for other purposes in any
object. */
if (priority && (priority <= BACNET_MAX_PRIORITY) &&
(priority != 6 /* reserved */ ) &&
(value.type.Enumerated <= MAX_BINARY_PV)) {
level = (BACNET_BINARY_PV) value.type.Enumerated;
priority--;
Binary_Output_Present_Value_Set(wp_data->object_instance,
level, priority);
} else if (priority == 6) {
/* Command priority 6 is reserved for use by Minimum On/Off
algorithm and may not be used for other purposes in any
object. */
status = false;
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
} else {
status = false;
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
status =
WPValidateArgType(&value, BACNET_APPLICATION_TAG_NULL,
&wp_data->error_class, &wp_data->error_code);
if (status) {
level = BINARY_NULL;
priority = wp_data->priority;
if (priority && (priority <= BACNET_MAX_PRIORITY)) {
priority--;
Binary_Output_Present_Value_Set
(wp_data->object_instance, level, priority);
} else if (priority == 6) {
status = false;
/* Command priority 6 is reserved for use by Minimum On/Off
algorithm and may not be used for other purposes in any
object. */
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
} else {
status = false;
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
}
}
break;
case PROP_OUT_OF_SERVICE:
status =
WPValidateArgType(&value, BACNET_APPLICATION_TAG_BOOLEAN,
&wp_data->error_class, &wp_data->error_code);
if (status) {
Binary_Output_Out_Of_Service_Set(wp_data->object_instance,
value.type.Boolean);
}
break;
case PROP_POLARITY:
status =
WPValidateArgType(&value, BACNET_APPLICATION_TAG_ENUMERATED,
&wp_data->error_class, &wp_data->error_code);
if (status) {
if (value.type.Enumerated < MAX_POLARITY) {
Binary_Output_Polarity_Set(wp_data->object_instance,
(BACNET_POLARITY) value.type.Enumerated);
} else {
status = false;
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
}
break;
case PROP_OBJECT_IDENTIFIER:
case PROP_OBJECT_NAME:
case PROP_OBJECT_TYPE:
case PROP_STATUS_FLAGS:
case PROP_RELIABILITY:
case PROP_EVENT_STATE:
case PROP_PRIORITY_ARRAY:
case PROP_RELINQUISH_DEFAULT:
case PROP_ACTIVE_TEXT:
case PROP_INACTIVE_TEXT:
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
break;
default:
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_UNKNOWN_PROPERTY;
break;
}
/* not using len at this time */
len = len;
return status;
}
void Binary_Output_Init(
void)
{
unsigned i, j;
/* initialize all the analog output priority arrays to NULL */
for (i = 0; i < MAX_BINARY_OUTPUTS; i++) {
Binary_Output_Polarity_Set(i, POLARITY_NORMAL);
Binary_Output_Out_Of_Service_Set(i, false);
for (j = 0; j < BACNET_MAX_PRIORITY; j++) {
Binary_Output_Level[i][j] = BINARY_NULL;
}
}
return;
}
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