ISO 17356-6:2006

Road vehicles — Open interface for embedded automotive applications — Part 6: OSEK/VDX Implementation Language (OIL)

ISO 17356-6:2006 describes the OSEK Implementation Language (OIL) concept for the description for ISO 17356 real-time systems, capable of multitasking and communications, which can be used for motor vehicles. It is not a product description that relates to a specific implementation.

Véhicules routiers — Interface ouverte pour applications automobiles embarquées — Partie 6: Language d'exécution OSEK/VDX (OIL)

General Information

• Status: Published
• Publication Date: 19-Jan-2006
• ICS: 43.040.15 - Car informatics. On board computer systems
• Technical Committee: ISO/TC 22/SC 31 - Data communication
• Drafting Committee: ISO/TC 22/SC 31/WG 5 - Test equipment/Data eXchange Formats
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 20-Nov-2020

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 17356-6
First edition
2006-01-15

Road vehicles — Open interface for
embedded automotive applications —
Part 6:
OSEK/VDX Implementation Language
(OIL)
Véhicules routiers — Interface ouverte pour applications automobiles
embarquées —
Partie 6: Language d'exécution OSEK/VDX (OIL)




Reference number
ISO 17356-6:2006(E)
©
ISO 2006

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ISO 17356-6:2006(E)
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ISO 17356-6:2006(E)
Contents Page
Foreword. iv
0 Introduction . v
0.1 General remarks. v
0.2 Motivation. v
1 Scope . 1
2 Normative references . 1
3 Language Definition . 1
3.1 Preamble. 1
3.2 General concept. 2
4 ISO 17356-6 object definitions. 5
4.1 Rules . 5
4.2 ISO 17356-6 objects, standard attributes and references . 6
5 Definition of a particular implementation. 25
5.1 General. 25
5.2 Attribute types. 25
5.3 Reference Types . 27
5.4 Multiple values . 27
5.5 Example . 27
6 Syntax and default definition. 29
6.1 ISO 17356-6 syntax . 29
6.2 Default definition of ISO 17356-6 objects and standard attributes. 35
7 Description of the ISO 17356-6 objects . 46
Annex A (informative) Generator hints . 47
Bibliography . 48
Index. 49

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ISO 17356-6:2006(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 17356-6 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3,
Electrical and electronic equipment.
ISO 17356 consists of the following parts, under the general title Road vehicles — Open interface for
embedded electronic equipment:
⎯ Part 1: General structure and terms, definitions and abbreviated terms;
⎯ Part 2: OSEK/VDX specifications for binding OS,COM and NM;
⎯ Part 3: OSEK/VDX Operating System (OS);
⎯ Part 4: OSEK/VDX Communication (COM);
⎯ Part 5: OSEK/VDX Network Management (NM);
⎯ Part 6: OSEK/VDX Implementation Language (OIL).
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ISO 17356-6:2006(E)
0 Introduction
0.1 General remarks
This part of ISO 17356 refers to ISO 17356-2, ISO 17356-3 and ISO 17356-4. For a better understanding of
this document, the reader should be familiar with the contents of these other specifications.
0.2 Motivation
To reach the goal of portable software, this part of ISO 17356 defines a way to describe the configuration of
an application.
This part of ISO 17356 only addresses a single central processing unit (CPU) in an electronic control unit
(ECU), not an ECU network.

Figure 1 — Example of development process for applications
Figure 1 shows an example of a development process for applications.
The ISO 17356-6 description may be handwritten or generated by a system configuration tool. There can be
several ISO 17356-6 files, e.g.:
⎯ files which contain CPU-specific configuration items (created by the supplier); and
⎯ files which contain configuration items for the entire network (provided by the OEM).
Sub-systems delivered in source code are compiled together with the application; others delivered as a library
are integrated by the linker.
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INTERNATIONAL STANDARD ISO 17356-6:2006(E)

Road vehicles — Open interface for embedded automotive
applications —
Part 6:
OSEK/VDX Implementation Language (OIL)
1 Scope
This document describes the OSEK Implementation Language (OIL) concept for the description for ISO 17356
real-time systems, capable of multitasking and communications, which can be used for motor vehicles. It is
not a product description that relates to a specific implementation.
General conventions, explanations of terms and abbreviations are compiled in a glossary, which is part of
ISO 17356-1.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 9899, Programming languages — C
ISO 17356-1, Road vehicles — Open interface for embedded automotive applications — Part 1: General
structure and terms, definitions and abbreviated terms
ISO 17356-2, Road vehicles — Open interface for embedded automotive applications — Part 2: OSEK/VDX
specifications for binding OS, COM and NM
ISO 17356-3, Road vehicles — Open interface for embedded automotive applications — Part 3: OSEK/VDX
Operating System (OS)
ISO 17356-4, Road vehicles — Open interface for embedded automotive applications — Part 4: OSEK/VDX
Communication (COM)
ISO 17356-5, Road vehicles — Open interface for embedded automotive applications — Part 5: OSEK/VDX
Network Management (NM)
3 Language Definition
3.1 Preamble
The goal of this part of ISO 17356 is to provide a method to configure an application inside a particular CPU.
This means for each CPU there is one ISO 17356-6 description.
All system objects are described using ISO 17356-6 objects.
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ISO 17356-6:2006(E)
3.2 General concept
The ISO 17356-6 description of the application is considered to be composed of a set of ISO 17356-6 objects.
A CPU is a container for these objects.
This part of ISO 17356 defines standard types for its objects. Each object is described by a set of attributes
and references. This part of ISO 17356 defines explicitly all standard attributes for each ISO 17356-6 object.
Each implementation can define additional implementation-specific attributes and references. It is possible
only to add attributes to existing ISO 17356-6 objects. Creating new ISO 17356-6 objects, or other changes to
the grammar, are not allowed. All non-standard attributes (optional attributes) are considered to be fully
implementation-specific and have no standard interpretation. Each implementation can limit the given set of
values for attributes (e.g. restrict the possible value range for priorities).
3.2.1 ISO 17356-6 file structure
The ISO 17356-6 description contains two parts — one part for the definition of standard and
implementation-specific features (implementation definition), and another for the definition of the structure of
the application located on the particular CPU (application definition).
The ISO 17356-6 description consists of one main ISO 17356-6 file that can refer to included files (see 3.2.9).
3.2.2 Syntax
The grammar rules for an ISO 17356-6 file are presented in the document using a notation similar to the
Backus-Naur Form (BNF) [1, 2], see 6.1.
All keywords, attributes, object names, and other identifiers are case-sensitive.
++
Comments in the BNF notation are written as C -style comments.
3.2.3 ISO 17356-6 versions
Two ISO 17356-6 sets of objects and standard attributes are defined:
⎯ Full set of objects and standard attributes: ISO 17356-3 and full-featured ISO 17356-4, supporting the
conformance classes BCC1, BCC2, ECC1, ECC2, CCCA, CCCB, CCC0, CCC1.
⎯ Subset of objects and standard attributes: ISO 17356-3 with internal communication only, supporting the
conformance classes BCC1, BCC2, ECC1, ECC2, CCCA, CCCB.
Refer to ISO 17356-3 and ISO 17356-4 for the features available with each of the abovementioned
conformance classes.
3.2.4 Implementation definition
For each ISO 17356-6 object, the implementation definition defines all attributes and their properties for a
particular implementation.
The implementation definition shall be present in the ISO 17356-6 description and have to contain all standard
attributes, which are listed in 4.2. The value range of those attributes may be restricted. Attribute definition is
described in clause 5.
Additional attributes and their properties can be defined for the objects for a particular implementation.
Additional attributes are optional.
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ISO 17356-6:2006(E)
The include mechanism (see 3.2.1) can be used to define the implementation definition as a separate file.
Thus, corresponding implementation definition files can be developed and delivered with particular
implementations and then included with the application definition in user's ISO 17356-6 files.
An implementation of ISO 17356-6 shall support either all objects and standard attributes or a specific subset
defined in 6.2.1.
3.2.5 Application definition
The application definition comprises a set of objects and the values for their attributes. Except for the
ISO 17356-3, ISO 17356-4 and ISO 17356-5 objects, the application definition can contain more than one
ISO 17356-6 object of a particular type.
Each object is characterized by a set of attributes and their values. No attribute may appear that is not defined
in the implementation definition. Attribute values shall comply with the attribute properties specified in the
implementation definition.
Attributes that take a single value shall only be specified once per object. Attributes that take a list of values
shall be specified as multiple statements.
Example for a multiple statement:
RESOURCE = RES1;
RESOURCE = RES2;
3.2.6 Dependencies between attributes
This part of ISO 17356 allows the expression of dependencies between attributes. To be more open to
vendor-specific and standard extensions, the ISO 17356-6 syntax includes conditional attributes (parameters).
This part of ISO 17356 allows infinite nesting of those dependencies.
To express dependencies, ENUM and BOOLEAN attributes can be parameterized. If attributes in several sets
of one conditional attribute have the same name, they shall have the same type.
3.2.7 Automatic attribute assignment
Attribute values may be calculated by the generator. For these attributes, the keyword WITH_AUTO shall be
used in the attribute’s definition in the implementation definition. In conjunction with WITH_AUTO, the attribute
value AUTO is valid in the application definition and as a default value.
3.2.8 Default values
Default values are used by the generator in the case that an attribute is missing in the application definition.
Default values are mandatory for optional attributes. Because the syntax of the implementation-specific part
requires the definition of default values, a special default value NO_DEFAULT is defined explicitly to suppress
the default mechanism. In this case, the attribute shall be defined in the application part.
Default values are forbidden for standard attributes except if explicitly stated otherwise in the specification. If a
default value is allowed for a standard attribute, it is defined in 6.2.
It is an error if a standard attribute that does not have a default value defined in the implementation definition
is missing from the application definition.
ISO 17356-6 grammar uses assignment in the implementation definition to specify default values.
All possible combinations of attributes with default values are shown in Table 1. The ISO 17356-6 syntax
allows six combinations for the implementation-specific part and three combinations for the application part.
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ISO 17356-6:2006(E)
Table 1 — Possible combinations of attributes with default values for ENUM
Implementation part Application part
param = A; param = AUTO; // nothing
ENUM [A, B, C] param = B; param ÖA ERROR param ÖB
ENUM [A, B, C]
param ÖA ERROR ERROR
param = NO_DEFAULT;
ENUM [A, B, C] param = AUTO; ERROR ERROR ERROR
ENUM WITH_AUTO [A, B, C]
param ÖA generator-specific param ÖB
param = B;
ENUM WITH_AUTO [A, B, C]
param ÖA generator-specific ERROR
param = NO_DEFAULT;
ENUM WITH_AUTO [A, B, C]
param ÖA generator-specific generator-specific
param = AUTO;

EXAMPLE
IMPLEMENTATION myOS {
TASK {
UINT32 [1.0xff] STACKSIZE = 16; // If STACKSIZE is missing,
      // 16 is used as a default
};
};
3.2.9 Include mechanism
3.2.9.1 General
The include mechanism allows for separate definitions for some parts of this part of ISO 17356. The
implementation definition can be delivered with an implementation and used (included) by the system
designer.
The include statement has the same syntax as in ISO 9899:
#include ,
#include "file".
For each ISO 17356-6 tool there shall be a way to specify search-paths for include files.
#include uses the search-path.
#include "file" uses the directory where the including file resides.
3.2.9.2 Placement of include directives
The same rules apply as for ISO 9899, e.g. the include statement has to be on a separate line and can appear
anywhere in the description files.
3.2.10 Comments
++ ++
The ISO 17356-6 file may contain C -style comments (/* */ and //). C rules apply.
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ISO 17356-6:2006(E)
3.2.11 Descriptions
To describe ISO 17356-6 objects, attributes, and values, the ISO 17356-6 syntax offers the concept of
descriptions. Descriptions are optional. They start after a colon (:), are enclosed in double quotes (" "), and
shall not contain a double quote.
EXAMPLE
.
BOOLEAN START = FALSE:"Automatic start of alarm on system start";
.
Descriptions give the user additional information about ISO 17356-6 objects, attributes and values in a
well-defined format. The interpretation of descriptions is implementation-specific.
4 ISO 17356-6 object definitions
4.1 Rules
The application configuration files have to conform to some rules to be successfully processed. These rules
are:
⎯ All objects are described using the ISO 17356-6 syntax.
⎯ Each object shall have a unique name. Each object may be divided into several parts.
⎯ All object names shall be accessible from the application.
⎯ An attribute shall define some object properties (for example, the task priority). Attributes that take a
single value may only be specified once per object. Attributes that take a list of values shall be specified
as multiple statements.
⎯ An object can have a set of references to other objects. Per object, there may be more than one
reference to the same type of object (e.g. more than one reference to different events, see example in
4.2.4.8).
⎯ Unless stated otherwise, values shall be defined for all standard attributes of all objects, except for
multiple attributes, which may be empty.
⎯ If default values are required for standard attributes, they shall be specified in this part of ISO 17356 and
shall not be changed.
⎯ The non-terminal represents any ISO 9899 identifier.
⎯ The non-terminal represents any integer constant. The range of integers is determined by the
target platform. Both decimal and hexadecimal integers are allowed, using the same notation as C.
Decimal integers with leading zeroes are not allowed as they might be misinterpreted as octal values.
⎯ The non-terminal represents any 8-bit character sequence enclosed in double-quotes (" "), but
not containing double-quotes.
⎯ The description represents any 8-bit character sequence enclosed in double-quotes (" "), but not
containing double-quotes.
⎯ A reference defines a unidirectional link to another object (for example, the task X shall be activated when
the alarm Y expires).
⎯ Implementation-specific additional parameters are only allowed for optional attributes. For portability
reasons, it is forbidden to define implementation-specific additional parameters for standard attributes.
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ISO 17356-6:2006(E)
4.2 ISO 17356-6 objects, standard attributes and references
For each object, the standard set of attributes and their values shall be defined. They shall be supported by
any implementation.
4.2.1 CPU
CPU shall be used as a container for all other objects.
4.2.2 OS
OS is the object used to define ISO 17356-3 properties for an application.
In a CPU, exactly one ISO 17356-3 object shall be defined. (Attributes for Conformance Class and Scheduling
are not defined, as these are not part of ISO 17356-3.)
4.2.2.1 STATUS
The STATUS attribute specifies whether a system with standard or extended status shall be used. Automatic
assignment is not supported for this attribute.
This attribute is of type ENUM and has one of the following possible values:
⎯ STANDARD,
⎯ EXTENDED.
4.2.2.2 Hook routines
The following attribute names are defined for the hook routines supported by the OS:
⎯ STARTUPHOOK,
⎯ ERRORHOOK,
⎯ SHUTDOWNHOOK,
⎯ PRETASKHOOK,
⎯ POSTTASKHOOK.
These attributes are of type BOOLEAN.
If a hook routine is used, the value is set to TRUE otherwise the value is set to FALSE.
The usage of the access macros to the service ID and the context-related information in the error hook is
enabled by the following attributes of type BOOLEAN:
⎯ USEGETSERVICEID,
⎯ USEPARAMETERACCESS.
4.2.2.3 USERESSCHEDULER
The USERESSCHEDULER attribute is of type BOOLEAN and defines whether the resource
RES_SCHEDULER is used within the application.
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ISO 17356-6:2006(E)
EXAMPLE
OS ExampleOS {
STATUS = STANDARD;
STARTUPHOOK = TRUE;
ERRORHOOK = TRUE;
SHUTDOWNHOOK = TRUE;
PRETASKHOOK = FALSE;
POSTTASKHOOK = FALSE;
  USEGETSERVICEID = FALSE;
  USEPARAMETERACCESS = FALSE;
  USERESSCHEDULER = TRUE;
};
4.2.3 APPMODE
APPMODE is the object used to define ISO 17356-3 properties for an ISO 17356-3 application mode.
No standard attributes are defined for APPMODE.
In a CPU, at least one APPMODE object shall be defined.
4.2.4 TASK
TASK objects represent tasks.
4.2.4.1 PRIORITY
The priority of a task is defined by the value of the PRIORITY attribute. This value shall be understood as a
relative value, i.e. the values of PRIORITY show only the relative ordering of the tasks.
This attribute is of type UINT32.
ISO 17356-3 defines the lowest priority as zero (0); larger values of the PRIORITY attribute correspond to
higher priorities.
4.2.4.2 SCHEDULE
The SCHEDULE attribute defines the preemptability of the task.
This attribute is of type ENUM and has one of the following possible values:
⎯ NON,
⎯ FULL.
The FULL value of this attribute corresponds to a preemptable task, the NON value to a non-preemptable task.
If the SCHEDULE attribute is set to NON, no internal resources may be assigned to this task.
4.2.4.3 ACTIVATION
The ACTIVATION attribute defines the maximum number of queued activation requests for the task. A value
equal to "1" means that at any time only a single activation is permitted for this task.
This attribute is of type UINT32.
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ISO 17356-6:2006(E)
4.2.4.4 AUTOSTART
The AUTOSTART attribute determines whether or not the task is activated during the system start-up
procedure for some specific application modes.
This attribute is of type BOOLEAN.
If the task is to be activated during the system start-up, the value shall be set to TRUE, otherwise the value is
set to FALSE. When set to TRUE, a list of application modes is defined in the APPMODE sub-attribute of type
APPMODE_TYPE. These define in which application modes the task is auto-started.
4.2.4.5 RESOURCE
The RESOURCE reference is used to define a list of resources accessed by the task.
This attribute is a multiple reference (see 5.2, 5.3) of type RESOURCE_TYPE.
4.2.4.6 EVENT
The EVENT reference is used to define a list of events the extended task may react to.
This attribute is a multiple reference (see 5.2, 5.3) of type EVENT_TYPE.
4.2.4.7 MESSAGE
The MESSAGE reference is used to define a list of messages accessed by the task.
This attribute is a multiple reference (see 5.2, 5.3) of type MESSAGE_TYPE.
4.2.4.8 Example
TASK TaskA {
PRIORITY = 2;
SCHEDULE = NON;
ACTIVATION = 1;
AUTOSTART = TRUE {
   APPMODE = AppMode1;
   APPMODE = AppMode2;
  };
RESOURCE = resource1;
RESOURCE = resource2;
RESOURCE = resource3;
EVENT = event1;
EVENT = event2;
MESSAGE = anyMesssage1;
};
4.2.5 COUNTER
A COUNTER serves as a base for the ALARM mechanism.
4.2.5.1 MAXALLOWEDVALUE
The MAXALLOWEDVALUE attribute defines the maximum allowed counter value.
This attribute is of type UINT32.
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ISO 17356-6:2006(E)
4.2.5.2 TICKSPERBASE
The TICKSPERBASE attribute specifies the number of ticks required to reach a counter-specific unit. The
interpretation is implementation-specific.
This attribute is of type UINT32.
4.2.5.3 MINCYCLE
The MINCYCLE attribute specifies the minimum allowed number of counter ticks for a cyclic alarm linked to
the counter.
This attribute is of type UINT32.
4.2.5.4 EXAMPLE
COUNTER Timer {
MINCYCLE = 16;
MAXALLOWEDVALUE = 127;
TICKSPERBASE = 90;
};
4.2.6 ALARM
An ALARM may be used to asynchronously inform or activate a specific task. It is possible to start alarms
automatically at system start-up depending on the application mode.
4.2.6.1 COUNTER
The COUNTER reference defines the counter assigned to this alarm. Only one counter shall be assigned to
the alarm. Any alarm shall be assigned to a particular counter.
This attribute is a single reference (see 5.2).
4.2.6.2 ACTION
The ACTION attribute defines which type of notification is used when the alarm expires.
This attribute is a parameterized ENUM with the following possible values:
⎯ ACTIVATETASK {TASK_TYPE TASK;},
⎯ SETEVENT {TASK_TYPE TASK; EVENT_TYPE EVENT;} ,
⎯ ALARMCALLBACK {STRING ALARMCALLBACKNAME;}.
For an alarm, only one action is allowed.
ACTION = ACTIVATETASK
The TASK reference parameter defines the task to be activated when the alarm expires.
This parameter is a single reference of type TASK_TYPE (see 5.2).
ACTION = SETEVENT
The TASK reference parameter defines the task for which the event is to be set. The EVENT reference
parameter defines the event to be set when the alarm expires.
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ISO 17356-6:2006(E)
TASK is a single reference of type TASK_TYPE. EVENT is a single reference of type EVENT_TYPE.
ACTION = ALARMCALLBACK
The ALARMCALLBACKNAME parameter defines the name of the callback routine that is called when the
alarm expires.
4.2.6.3 AUTOSTART
The AUTOSTART attribute of type BOOLEAN defines if an alarm is started automatically at system start-up
depending on the application mode.
When this attribute is set to TRUE, sub-attributes are used to define the ALARMTIME, i.e. the time when the
ALARM shall expire first; the CYCLETIME, i.e. the cycle time of a cyclic ALARM; and a list of application
modes (APPMODE) for which the AUTOSTART shall be performed.
BOOLEAN [
  TRUE
  {
   UINT32 ALARMTIME;
   UINT32 CYCLETIME;
   APPMODE_TYPE APPMODE[];
  },
  FALSE
] AUTOSTART;
4.2.6.4 EXAMPLE
ALARM WakeTaskA {
COUNTER = Timer;
ACTION = SETEVENT {
 TASK = TaskA;
 EVENT = event1;
};
  AUTOSTART = FALSE;
};
ALARM WakeTaskB {
COUNTER = SysCounter;
ACTION = ACTIVATETASK {
 TASK = TaskB;
};
  AUTOSTART = TRUE {
   ALARMTIME = 50;
   CYCLETIME = 100;
   APPMODE = AppMode1;
   APPMODE = AppMode2;
  };
};
ALARM RunCallbackC {
COUNTER = SysCounter;
ACTION = ALARMCALLBACK {
 ALARMCALLBACKNAME = "CallbackC";
};
  AUTOSTART = FALSE;
};
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ISO 17356-6:2006(E)
4.2.7 RESOURCE
A RESOURCE object is used to coordinate the concurrent access by tasks and ISRs to a shared resource,
e.g. the scheduler, any program sequence, memory or any hardware area.
There is one attribute of type ENUM defined to specify the RESO
...