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/**************************************************************************

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*

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* Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>

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* Copyright (C) 2017 Mario de Sousa <msousa@fe.up.pt>

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*

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* Permission is hereby granted, free of charge, to any person obtaining

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* a copy of this software and associated documentation files (the

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* "Software"), to deal in the Software without restriction, including

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* without limitation the rights to use, copy, modify, merge, publish,

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* distribute, sublicense, and/or sell copies of the Software, and to

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* permit persons to whom the Software is furnished to do so, subject to

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* the following conditions:

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*

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* The above copyright notice and this permission notice shall be included

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* in all copies or substantial portions of the Software.

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*

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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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*

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*********************************************************************/

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/* Binary Value Objects - customize for your use */

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    29

#include <stdbool.h>

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#include <stdint.h>

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#include <stdio.h>

    32

    33

#include "config_bacnet_for_beremiz_%(locstr)s.h"     /* the custom configuration for beremiz plugin */

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#include "bacdef.h"

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#include "bacdcode.h"

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#include "bacenum.h"

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#include "bacapp.h"

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#include "wp.h"

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#include "rp.h"

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#include "bv_%(locstr)s.h"

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#include "handlers.h"

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    43

/* we choose to have a NULL level in our system represented by */

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/* a particular value.  When the priorities are not in use, they */

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/* will be relinquished (i.e. set to the NULL level). */

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// BINARY_NULL

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/* test whether value is NULL */

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#define BINARY_VALUE_IS_NULL(x) ((x) == BINARY_NULL)

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    50

/* When all the priorities are level null, the present value returns

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 * the Relinquish Default value 

    52

 */

    53

#define BV_VALUE_RELINQUISH_DEFAULT BINARY_INACTIVE

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    55

/* The IEC 61131-3 located variables mapped onto the Binary Value objects of BACnet protocol */

    56

%(BV_lvars)s

    57

    58

    59

/* The array where we keep all the state related to the Binary Value Objects */

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#define MAX_BINARY_VALUES %(BV_count)s

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static BINARY_VALUE_DESCR BV_Descr[MAX_BINARY_VALUES] = {

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%(BV_param)s

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};

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    65

    66

    67

    68

/* These three arrays are used by the ReadPropertyMultiple handler,

    69

 * as well as to initialize the XXX_Property_List used by the 

    70

 * Property List (PROP_PROPERTY_LIST) property.

    71

 */

    72

static const int Binary_Value_Properties_Required[] = {

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 /* (1) Currently Supported                  */

    74

 /* (2) Required by standard ASHRAE 135-2016 */

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                              /*(1)(2)      */

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    PROP_OBJECT_IDENTIFIER,   /* R  R ( 75) */

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    PROP_OBJECT_NAME,         /* R  R ( 77) */

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    PROP_OBJECT_TYPE,         /* R  R ( 79) */

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    PROP_PRESENT_VALUE,       /* W  R ( 85) */

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    PROP_STATUS_FLAGS,        /* R  R (111) */

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    PROP_EVENT_STATE,         /* R  R ( 36) */

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    PROP_OUT_OF_SERVICE,      /* W  R ( 81) */

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//  PROP_PROPERTY_LIST,       /* R  R (371) */

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    -1

    85

};

    86

    87

static const int Binary_Value_Properties_Optional[] = {

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 /* (1) Currently Supported                  */

    89

 /* (2) Required by standard ASHRAE 135-2016 */

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                                  /*(1)(2)      */

    91

    PROP_DESCRIPTION,             /* R  O ( 28) */

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    /* required if Present_Value is writable (which is true in our case!) */

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    PROP_PRIORITY_ARRAY,          /* R  O ( 87) */

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    PROP_RELINQUISH_DEFAULT,      /* R  O (104) */

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//  PROP_CURRENT_COMMAND_PRIORITY,/* R  O (431) */   

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    -1

    97

};

    98

    99

static const int Binary_Value_Properties_Proprietary[] = {

   100

    -1

   101

};

   102

   103

   104

/* This array stores the PROPERTY_LIST which may be read by clients.

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 * End of list is marked by following the last element with the value '-1'

   106

 * 

   107

 * It is initialized by Binary_Value_Init() based off the values

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 * stored in Binary_Value_Properties_Required 

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 *           Binary_Value_Properties_Optional

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 *           Binary_Value_Properties_Proprietary

   111

 */

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/* TODO: Allocate memory for this array with malloc() at startup */

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static int Binary_Value_Properties_List[64];

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   115

   116

   117

   118

   119

/********************************************************/

   120

/**                  Callback functions.               **/

   121

/** Functions required by BACnet devie implementation. **/

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/********************************************************/

   123

   124

   125

/* This is a callback function. Callback set in My_Object_Table[] array declared in device.c,  */

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void Binary_Value_Property_Lists(

   127

    const int **pRequired,

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    const int **pOptional,

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    const int **pProprietary)

   130

{

   131

    if (pRequired)

   132

        *pRequired = Binary_Value_Properties_Required;

   133

    if (pOptional)

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        *pOptional = Binary_Value_Properties_Optional;

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    if (pProprietary)

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        *pProprietary = Binary_Value_Properties_Proprietary;

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   138

    return;

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}

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/* This is a callback function. Callback set in My_Object_Table[] array declared in device.c,  */

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void Binary_Value_Init(

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    void)

   145

{

   146

    unsigned i, j;

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    static bool initialized = false;

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   149

    // fprintf(stderr, "BACnet plugin: Binary_Value_Init() called!\n");

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   151

    if (!initialized) {

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        initialized = true;

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        /* initialize the Binary_Value_Properties_List array */

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        int len = 0;

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        len += BACnet_Init_Properties_List(Binary_Value_Properties_List + len,

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                                           Binary_Value_Properties_Required);

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        len += BACnet_Init_Properties_List(Binary_Value_Properties_List + len,

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                                           Binary_Value_Properties_Optional);

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        len += BACnet_Init_Properties_List(Binary_Value_Properties_List + len,

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                                           Binary_Value_Properties_Proprietary);

   162

   163

        /* initialize all the binary values priority arrays to NULL */

   164

        for (i = 0; i < MAX_BINARY_VALUES; i++) {

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            for (j = 0; j < BACNET_MAX_PRIORITY; j++) {

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                BV_Descr[i].Present_Value[j] = BINARY_NULL;

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            }

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        }

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    }

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   171

    return;

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}

   173

   174

   175

   176

/* validate that the given instance (Object ID) exists */

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/* This is a callback function. Callback set in My_Object_Table[] array declared in device.c,  */

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bool Binary_Value_Valid_Instance(

   179

    uint32_t object_instance)

   180

{

   181

    // fprintf(stderr, "BACnet plugin: Binary_Value_Valid_Instance(obj_ID=%%u) called!\n", object _instance);

   182

    return (Binary_Value_Instance_To_Index(object_instance) < MAX_BINARY_VALUES);

   183

}

   184

   185

   186

/* the number of Binary Value Objects */

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/* This is a callback function. Callback set in My_Object_Table[] array declared in device.c,  */

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unsigned Binary_Value_Count(void)   {return MAX_BINARY_VALUES;}

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   190

   191

/* returns the instance (i.e. Object Identifier) that correlates to the correct index */

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/* This is a callback function. Callback set in My_Object_Table[] array declared in device.c,  */

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uint32_t Binary_Value_Index_To_Instance(unsigned index) {return BV_Descr[index].Object_Identifier;}

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   195

   196

/* returns the index that correlates to the correct instance number (Object Identifier) */

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unsigned Binary_Value_Instance_To_Index(

   198

    uint32_t object_instance)

   199

{

   200

    unsigned index = 0;

   201

   202

    for (index = 0; index < MAX_BINARY_VALUES; index++)

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        if (object_instance == BV_Descr[index].Object_Identifier)

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            return index;

   205

   206

    /* error, this object ID is not in our list! */

   207

    return MAX_BINARY_VALUES;

   208

}

   209

   210

   211

   212

BACNET_BINARY_PV Binary_Value_Present_Value(

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    uint32_t object_instance)

   214

{

   215

    BACNET_BINARY_PV value = BV_VALUE_RELINQUISH_DEFAULT;

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    unsigned index = 0;

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    unsigned i = 0;

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   219

    // fprintf(stderr, "BACnet plugin: Binary_Value_Present_Value(obj_ID=%%u) called!\n", object_instance);

   220

   221

    index = Binary_Value_Instance_To_Index(object_instance);

   222

    if (index < MAX_BINARY_VALUES) {

   223

        for (i = 0; i < BACNET_MAX_PRIORITY; i++) {

   224

            if (!BINARY_VALUE_IS_NULL(BV_Descr[index].Present_Value[i])) {

   225

                value = BV_Descr[index].Present_Value[i];

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                break;

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            }

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        }

   229

    }

   230

   231

    return value;

   232

}

   233

   234

   235

   236

/* returns command priority (1..16), or 0 if all priority values are at NULL */

   237

int Binary_Value_Current_Command_Priority(

   238

    uint32_t object_instance)

   239

{

   240

    unsigned index = 0;

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    unsigned i = 0;

   242

   243

    index = Binary_Value_Instance_To_Index(object_instance);

   244

    if (index < MAX_BINARY_VALUES) {

   245

        for (i = 0; i < BACNET_MAX_PRIORITY; i++) {

   246

            if (!BINARY_VALUE_IS_NULL(BV_Descr[index].Present_Value[i])) {

   247

                return i+1; // +1 since priority is 1..16, and not 0..15

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            }

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        }

   250

    }

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    // command values in all priorities are set to NULL

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    return 0;

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}

   254

   255

   256

   257

/* note: the object name must be unique within this device */

   258

/* This is a callback function. Callback set in My_Object_Table[] array declared in device.c,  */

   259

bool Binary_Value_Object_Name(

   260

    uint32_t object_instance,

   261

    BACNET_CHARACTER_STRING * object_name)

   262

{

   263

    bool    status = false;

   264

    unsigned index = Binary_Value_Instance_To_Index(object_instance);

   265

   266

    if (index < MAX_BINARY_VALUES)

   267

        status = characterstring_init_ansi(object_name, BV_Descr[index].Object_Name);

   268

   269

    return status;

   270

}

   271

   272

   273

   274

bool Binary_Value_Object_Description(

   275

    uint32_t object_instance,

   276

    BACNET_CHARACTER_STRING * object_name)

   277

{

   278

    bool    status = false;

   279

    unsigned index = Binary_Value_Instance_To_Index(object_instance);

   280

   281

    if (index < MAX_BINARY_VALUES)

   282

        status = characterstring_init_ansi(object_name, BV_Descr[index].Description);

   283

   284

    return status;    

   285

}

   286

   287

   288

   289

/* return apdu len, or BACNET_STATUS_ERROR on error */

   290

/* This is a callback function. Callback set in My_Object_Table[] array declared in device.c,  */

   291

int Binary_Value_Read_Property(

   292

    BACNET_READ_PROPERTY_DATA * rpdata)

   293

{

   294

    int len = 0;

   295

    int apdu_len = 0;   /* return value */

   296

    BACNET_BIT_STRING bit_string;

   297

    BACNET_CHARACTER_STRING char_string;

   298

    BACNET_BINARY_PV present_value = BINARY_INACTIVE;

   299

    unsigned object_index = 0;

   300

    unsigned i = 0;

   301

    bool state = false;

   302

    uint8_t *apdu = NULL;

   303

   304

    // fprintf(stderr, "BACnet plugin: Binary_Value_Read_Property() called!\n");

   305

   306

    if ((rpdata == NULL) || (rpdata->application_data == NULL) ||

   307

        (rpdata->application_data_len == 0)) {

   308

        return 0;

   309

    }

   310

   311

    object_index = Binary_Value_Instance_To_Index(rpdata->object_instance);

   312

    if (object_index >= MAX_BINARY_VALUES) {

   313

        rpdata->error_class = ERROR_CLASS_OBJECT;

   314

        rpdata->error_code  = ERROR_CODE_UNKNOWN_OBJECT;

   315

        return BACNET_STATUS_ERROR;

   316

    }

   317

   318

    apdu = rpdata->application_data;

   319

    switch (rpdata->object_property) {

   320

        case PROP_OBJECT_IDENTIFIER:

   321

            apdu_len =

   322

                encode_application_object_id(&apdu[0], OBJECT_BINARY_VALUE,

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                rpdata->object_instance);

   324

            break;

   325

        case PROP_OBJECT_NAME:

   326

            Binary_Value_Object_Name(rpdata->object_instance, &char_string);

   327

            apdu_len =

   328

                encode_application_character_string(&apdu[0], &char_string);

   329

            break;

   330

        case PROP_DESCRIPTION:

   331

            Binary_Value_Object_Description(rpdata->object_instance, &char_string);

   332

            apdu_len =

   333

                encode_application_character_string(&apdu[0], &char_string);

   334

            break;

   335

        case PROP_OBJECT_TYPE:

   336

            apdu_len =

   337

                encode_application_enumerated(&apdu[0], OBJECT_BINARY_VALUE);

   338

            break;

   339

        case PROP_PRESENT_VALUE:

   340

            present_value =

   341

                Binary_Value_Present_Value(rpdata->object_instance);

   342

            apdu_len = encode_application_enumerated(&apdu[0], present_value);

   343

            break;

   344

        case PROP_STATUS_FLAGS:

   345

            /* note: see the details in the standard on how to use these */

   346

            bitstring_init(&bit_string);

   347

            bitstring_set_bit(&bit_string, STATUS_FLAG_IN_ALARM, false);

   348

            bitstring_set_bit(&bit_string, STATUS_FLAG_FAULT, false);

   349

            bitstring_set_bit(&bit_string, STATUS_FLAG_OVERRIDDEN, false);

   350

            state = BV_Descr[object_index].Out_Of_Service;

   351

            bitstring_set_bit(&bit_string, STATUS_FLAG_OUT_OF_SERVICE, state);

   352

            apdu_len = encode_application_bitstring(&apdu[0], &bit_string);

   353

            break;

   354

        case PROP_EVENT_STATE:

   355

            /* note: see the details in the standard on how to use this */

   356

            apdu_len =

   357

                encode_application_enumerated(&apdu[0], EVENT_STATE_NORMAL);

   358

            break;

   359

        case PROP_OUT_OF_SERVICE:

   360

            state = BV_Descr[object_index].Out_Of_Service;

   361

            apdu_len = encode_application_boolean(&apdu[0], state);

   362

            break;

   363

        case PROP_PRIORITY_ARRAY:

   364

            BACnet_encode_array(BV_Descr[object_index].Present_Value,

   365

                                BACNET_MAX_PRIORITY,

   366

                                BINARY_VALUE_IS_NULL,

   367

                                encode_application_enumerated)

   368

            break;

   369

//      case PROP_CURRENT_COMMAND_PRIORITY: {

   370

//          unsigned i = Binary_Value_Current_Command_Priority(rpdata->object_instance);

   371

//          if (i == 0)  apdu_len = encode_application_null    (&apdu[0]);

   372

//          else         apdu_len = encode_application_unsigned(&apdu[0], i);

   373

//          break;

   374

//      }

   375

   376

        case PROP_RELINQUISH_DEFAULT:

   377

            present_value = BV_VALUE_RELINQUISH_DEFAULT;

   378

            apdu_len = encode_application_enumerated(&apdu[0], present_value);

   379

            break;

   380

//      case PROP_PROPERTY_LIST:

   381

//          BACnet_encode_array(Binary_Value_Properties_List,

   382

//                              property_list_count(Binary_Value_Properties_List),

   383

//                              retfalse, encode_application_enumerated);

   384

//          break;

   385

        default:

   386

            rpdata->error_class = ERROR_CLASS_PROPERTY;

   387

            rpdata->error_code = ERROR_CODE_UNKNOWN_PROPERTY;

   388

            apdu_len = BACNET_STATUS_ERROR;

   389

            break;

   390

    }

   391

    /*  only array properties can have array options */

   392

    if ((apdu_len >= 0) && (rpdata->object_property != PROP_PRIORITY_ARRAY) &&

   393

//      (rpdata->object_property != PROP_PROPERTY_LIST) &&

   394

        (rpdata->array_index != BACNET_ARRAY_ALL)) {

   395

        rpdata->error_class = ERROR_CLASS_PROPERTY;

   396

        rpdata->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;

   397

        apdu_len = BACNET_STATUS_ERROR;

   398

    }

   399

   400

    return apdu_len;

   401

}

   402

   403

   404

   405

   406

/* returns true if successful */

   407

/* This is a callback function. Callback set in My_Object_Table[] array declared in device.c,  */

   408

bool Binary_Value_Write_Property(

   409

    BACNET_WRITE_PROPERTY_DATA * wp_data)

   410

{

   411

    bool status = false;        /* return value */

   412

    unsigned int object_index = 0;

   413

    unsigned int priority = 0;

   414

    BACNET_BINARY_PV level = BINARY_NULL;

   415

    int len = 0;

   416

    BACNET_APPLICATION_DATA_VALUE value;

   417

   418

    /* decode the some of the request */

   419

    len =

   420

        bacapp_decode_application_data(wp_data->application_data,

   421

        wp_data->application_data_len, &value);

   422

    /* FIXME: len < application_data_len: more data? */

   423

    if (len < 0) {

   424

        /* error while decoding - a value larger than we can handle */

   425

        wp_data->error_class = ERROR_CLASS_PROPERTY;

   426

        wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;

   427

        return false;

   428

    }

   429

    /*  only array properties can have array options */

   430

    if ((wp_data->object_property != PROP_PRIORITY_ARRAY) &&

   431

        (wp_data->array_index != BACNET_ARRAY_ALL)) {

   432

        wp_data->error_class = ERROR_CLASS_PROPERTY;

   433

        wp_data->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;

   434

        return false;

   435

    }

   436

    /* No need to check whether object_index is within bounds.

   437

     * Has already been checked before Binary_Value_Write_Property() is called

   438

     */

   439

    object_index = Binary_Value_Instance_To_Index(wp_data->object_instance);

   440

   441

    switch (wp_data->object_property) {

   442

        case PROP_PRESENT_VALUE:

   443

            if (value.tag == BACNET_APPLICATION_TAG_ENUMERATED) {

   444

                priority = wp_data->priority;

   445

                if (priority && (priority <= BACNET_MAX_PRIORITY) &&

   446

                    (priority != 6 /* reserved */ ) &&

   447

                    (value.type.Enumerated <= MAX_BINARY_PV)) {

   448

                    level = (BACNET_BINARY_PV) value.type.Enumerated;

   449

                    priority--;

   450

                    BV_Descr[object_index].Present_Value[priority] = level;

   451

                    status = true;

   452

                } else if (priority == 6) {

   453

                    /* Command priority 6 is reserved for use by Minimum On/Off

   454

                       algorithm and may not be used for other purposes in any

   455

                       object. */

   456

                    wp_data->error_class = ERROR_CLASS_PROPERTY;

   457

                    wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;

   458

                } else {

   459

                    wp_data->error_class = ERROR_CLASS_PROPERTY;

   460

                    wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;

   461

                }

   462

            } else {

   463

                status =

   464

                    WPValidateArgType(&value, BACNET_APPLICATION_TAG_NULL,

   465

                    &wp_data->error_class, &wp_data->error_code);

   466

                if (status) {

   467

                    level = BINARY_NULL;

   468

                    priority = wp_data->priority;

   469

                    if (priority && (priority <= BACNET_MAX_PRIORITY)) {

   470

                        priority--;

   471

                        BV_Descr[object_index].Present_Value[priority] = level;

   472

                    } else {

   473

                        status = false;

   474

                        wp_data->error_class = ERROR_CLASS_PROPERTY;

   475

                        wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;

   476

                    }

   477

                }

   478

            }

   479

            break;

   480

        case PROP_OUT_OF_SERVICE:

   481

        {

   482

            bool Previous_Out_Of_Service = BV_Descr[object_index].Out_Of_Service;

   483

            status =

   484

                WPValidateArgType(&value, BACNET_APPLICATION_TAG_BOOLEAN,

   485

                &wp_data->error_class, &wp_data->error_code);

   486

            if (status) {

   487

                BV_Descr[object_index].Out_Of_Service = value.type.Boolean;

   488

                if (Previous_Out_Of_Service && !BV_Descr[object_index].Out_Of_Service)

   489

                    /* We have just changed from Out_of_Service -> In Service */

   490

                    /* We need to update the Present_Value to the value

   491

                     * currently in the PLC...

   492

                     */

   493

                    BV_Descr[object_index].Present_Value[BACNET_MAX_PRIORITY-1] =

   494

                                           *(BV_Descr[object_index].Located_Var_ptr);

   495

            }

   496

            break;

   497

        }

   498

        case PROP_OBJECT_IDENTIFIER:

   499

        case PROP_OBJECT_NAME:

   500

        case PROP_DESCRIPTION:

   501

        case PROP_OBJECT_TYPE:

   502

        case PROP_STATUS_FLAGS:

   503

        case PROP_EVENT_STATE:

   504

        case PROP_PRIORITY_ARRAY:

   505

//      case PROP_CURRENT_COMMAND_PRIORITY:

   506

        case PROP_RELINQUISH_DEFAULT:

   507

//      case PROP_PROPERTY_LIST:

   508

            wp_data->error_class = ERROR_CLASS_PROPERTY;

   509

            wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;

   510

            break;

   511

        default:

   512

            wp_data->error_class = ERROR_CLASS_PROPERTY;

   513

            wp_data->error_code = ERROR_CODE_UNKNOWN_PROPERTY;

   514

            break;

   515

    }

   516

   517

    return status;

   518

}

   519

   520

   521

   522

   523

   524

/********************************************/

   525

/** Functions required for Beremiz plugin  **/

   526

/********************************************/

   527

   528

   529