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authorSebastian Huber <sebastian.huber@embedded-brains.de>2021-06-14 09:59:59 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2021-07-27 07:50:15 +0200
commit056886f17196e925e7842db025dd17c95691ed84 (patch)
tree4aefd34e3066b4cc839fed0a29bbcabb37175caf
parent205f755bfd516c1c94d2b348d5e8f2c6bfb1610c (diff)
downloadrtems-docs-056886f17196e925e7842db025dd17c95691ed84.tar.bz2
c-user: Document interrupt manager extensions
Close #3269.
-rw-r--r--c-user/interrupt/directives.rst2641
-rw-r--r--c-user/interrupt/introduction.rst145
2 files changed, 2714 insertions, 72 deletions
diff --git a/c-user/interrupt/directives.rst b/c-user/interrupt/directives.rst
index f3a944d..2d7dccf 100644
--- a/c-user/interrupt/directives.rst
+++ b/c-user/interrupt/directives.rst
@@ -1,6 +1,6 @@
.. SPDX-License-Identifier: CC-BY-SA-4.0
-.. Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+.. Copyright (C) 2008, 2021 embedded brains GmbH (http://www.embedded-brains.de)
.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
.. This file is part of the RTEMS quality process and was automatically
@@ -506,70 +506,6 @@ The following constraints apply to this directive:
* The directive will not cause the calling task to be preempted.
-.. Generated from spec:/rtems/intr/if/cause
-
-.. raw:: latex
-
- \clearpage
-
-.. index:: rtems_interrupt_cause()
-
-.. _InterfaceRtemsInterruptCause:
-
-rtems_interrupt_cause()
------------------------
-
-Causes the interrupt.
-
-.. rubric:: CALLING SEQUENCE:
-
-.. code-block:: c
-
- #define rtems_interrupt_cause( vector )
-
-.. rubric:: PARAMETERS:
-
-``vector``
- This parameter is the vector number of the interrupt to cause.
-
-.. rubric:: CONSTRAINTS:
-
-The following constraints apply to this directive:
-
-* The directive is not implemented.
-
-.. Generated from spec:/rtems/intr/if/clear
-
-.. raw:: latex
-
- \clearpage
-
-.. index:: rtems_interrupt_clear()
-
-.. _InterfaceRtemsInterruptClear:
-
-rtems_interrupt_clear()
------------------------
-
-Clears the interrupt.
-
-.. rubric:: CALLING SEQUENCE:
-
-.. code-block:: c
-
- #define rtems_interrupt_clear( vector )
-
-.. rubric:: PARAMETERS:
-
-``vector``
- This parameter is the vector number of the interrupt to clear.
-
-.. rubric:: CONSTRAINTS:
-
-The following constraints apply to this directive:
-
-* The directive is not implemented.
-
.. Generated from spec:/rtems/intr/if/lock-initialize
.. raw:: latex
@@ -1108,3 +1044,2578 @@ Defines an ISR lock object reference.
.. rubric:: NOTES:
Do not add a ";" after this macro.
+
+.. Generated from spec:/rtems/intr/if/entry-initializer
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: RTEMS_INTERRUPT_ENTRY_INITIALIZER()
+
+.. _InterfaceRTEMSINTERRUPTENTRYINITIALIZER:
+
+RTEMS_INTERRUPT_ENTRY_INITIALIZER()
+-----------------------------------
+
+Statically initializes an interrupt entry object.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ #define RTEMS_INTERRUPT_ENTRY_INITIALIZER( routine, arg, info )
+
+.. rubric:: PARAMETERS:
+
+``routine``
+ This parameter is the interrupt handler routine for the entry.
+
+``arg``
+ This parameter is the interrupt handler argument for the entry.
+
+``info``
+ This parameter is the descriptive information for the entry.
+
+.. rubric:: NOTES:
+
+Alternatively, :ref:`InterfaceRtemsInterruptEntryInitialize` may be used to
+dynamically initialize an interrupt entry.
+
+.. Generated from spec:/rtems/intr/if/entry-initialize
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_entry_initialize()
+
+.. _InterfaceRtemsInterruptEntryInitialize:
+
+rtems_interrupt_entry_initialize()
+----------------------------------
+
+Initializes the interrupt entry.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ void rtems_interrupt_entry_initialize(
+ rtems_interrupt_entry *entry,
+ rtems_interrupt_handler routine,
+ void *arg,
+ const char *info
+ );
+
+.. rubric:: PARAMETERS:
+
+``entry``
+ This parameter is the interrupt entry to initialize.
+
+``routine``
+ This parameter is the interrupt handler routine for the entry.
+
+``arg``
+ This parameter is the interrupt handler argument for the entry.
+
+``info``
+ This parameter is the descriptive information for the entry.
+
+.. rubric:: NOTES:
+
+Alternatively, :ref:`InterfaceRTEMSINTERRUPTENTRYINITIALIZER` may be used to
+statically initialize an interrupt entry.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within any runtime context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/entry-install
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_entry_install()
+
+.. _InterfaceRtemsInterruptEntryInstall:
+
+rtems_interrupt_entry_install()
+-------------------------------
+
+Installs the interrupt entry at the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_entry_install(
+ rtems_vector_number vector,
+ rtems_option options,
+ rtems_interrupt_entry *entry
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``options``
+ This parameter is the interrupt entry install option set.
+
+``entry``
+ This parameter is the interrupt entry to install.
+
+.. rubric:: DESCRIPTION:
+
+One of the following mutually exclusive options
+
+* :c:macro:`RTEMS_INTERRUPT_UNIQUE`, and
+
+* :c:macro:`RTEMS_INTERRUPT_SHARED`
+
+shall be set in the ``options`` parameter.
+
+The handler routine of the entry specified by ``entry`` will be called with the
+handler argument of the entry when dispatched. The order in which shared
+interrupt handlers are dispatched for one vector is defined by the installation
+order. The first installed handler is dispatched first.
+
+If the option :c:macro:`RTEMS_INTERRUPT_UNIQUE` is set, then it will be ensured
+that the handler will be the only one for the interrupt vector.
+
+If the option :c:macro:`RTEMS_INTERRUPT_SHARED` is set, then multiple handlers
+may be installed for the interrupt vector.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``entry`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INCORRECT_STATE`
+ The service was not initialized.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The handler routine of the entry was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_CALLED_FROM_ISR`
+ The directive was called from within interrupt context.
+
+:c:macro:`RTEMS_INVALID_NUMBER`
+ An option specified by ``options`` was not applicable.
+
+:c:macro:`RTEMS_RESOURCE_IN_USE`
+ The :c:macro:`RTEMS_INTERRUPT_UNIQUE` option was set in ``entry`` and the
+ interrupt vector was already occupied by a handler.
+
+:c:macro:`RTEMS_RESOURCE_IN_USE`
+ The :c:macro:`RTEMS_INTERRUPT_SHARED` option was set in ``entry`` and the
+ interrupt vector was already occupied by a unique handler.
+
+:c:macro:`RTEMS_TOO_MANY`
+ The handler routine of the entry specified by ``entry`` was already
+ installed for the interrupt vector specified by ``vector`` with an argument
+ equal to the handler argument of the entry.
+
+.. rubric:: NOTES:
+
+When the directive call was successful, the ownership of the interrupt entry
+has been transferred from the caller to the interrupt service. An installed
+interrupt entry may be removed from the interrupt service by calling
+:ref:`InterfaceRtemsInterruptEntryRemove`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+* The interrupt entry shall have been initialized by
+ :ref:`InterfaceRtemsInterruptEntryInitialize` or
+ :ref:`InterfaceRTEMSINTERRUPTENTRYINITIALIZER`.
+
+.. Generated from spec:/rtems/intr/if/entry-remove
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_entry_remove()
+
+.. _InterfaceRtemsInterruptEntryRemove:
+
+rtems_interrupt_entry_remove()
+------------------------------
+
+Removes the interrupt entry from the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_entry_remove(
+ rtems_vector_number vector,
+ rtems_interrupt_entry *entry
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``entry``
+ This parameter is the interrupt entry to remove.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INCORRECT_STATE`
+ The service was not initialized.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``entry`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_CALLED_FROM_ISR`
+ The directive was called from within interrupt context.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The entry specified by ``entry`` was not installed at the interrupt vector
+ specified by ``vector``.
+
+.. rubric:: NOTES:
+
+When the directive call was successful, the ownership of the interrupt entry
+has been transferred from the interrupt service to the caller.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+* The interrupt entry shall have been installed by
+ :ref:`InterfaceRtemsInterruptEntryInstall`.
+
+.. Generated from spec:/rtems/intr/if/handler-install
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_handler_install()
+
+.. _InterfaceRtemsInterruptHandlerInstall:
+
+rtems_interrupt_handler_install()
+---------------------------------
+
+Installs the interrupt handler routine and argument at the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_handler_install(
+ rtems_vector_number vector,
+ const char *info,
+ rtems_option options,
+ rtems_interrupt_handler routine,
+ void *arg
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``info``
+ This parameter is the descriptive information of the interrupt handler to
+ install.
+
+``options``
+ This parameter is the interrupt handler install option set.
+
+``routine``
+ This parameter is the interrupt handler routine to install.
+
+``arg``
+ This parameter is the interrupt handler argument to install.
+
+.. rubric:: DESCRIPTION:
+
+One of the following mutually exclusive options
+
+* :c:macro:`RTEMS_INTERRUPT_UNIQUE`,
+
+* :c:macro:`RTEMS_INTERRUPT_SHARED`, and
+
+* :c:macro:`RTEMS_INTERRUPT_REPLACE`
+
+shall be set in the ``options`` parameter.
+
+The handler routine will be called with the argument specified by ``arg`` when
+dispatched. The order in which shared interrupt handlers are dispatched for
+one vector is defined by the installation order. The first installed handler
+is dispatched first.
+
+If the option :c:macro:`RTEMS_INTERRUPT_UNIQUE` is set, then it will be ensured
+that the handler will be the only one for the interrupt vector.
+
+If the option :c:macro:`RTEMS_INTERRUPT_SHARED` is set, then multiple handler
+may be installed for the interrupt vector.
+
+If the option :c:macro:`RTEMS_INTERRUPT_REPLACE` is set, then the handler
+specified by ``routine`` will replace the first handler with the same argument
+for the interrupt vector if it exists, otherwise an error status will be
+returned. A second handler with the same argument for the interrupt vector
+will remain unchanged. The new handler will inherit the unique or shared
+options from the replaced handler.
+
+An informative description may be provided in ``info``. It may be used for
+system debugging and diagnostic tools. The referenced string has to be
+persistent as long as the handler is installed.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INCORRECT_STATE`
+ The service was not initialized.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``routine`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_CALLED_FROM_ISR`
+ The directive was called from within interrupt context.
+
+:c:macro:`RTEMS_NO_MEMORY`
+ There was not enough memory available to allocate data structures to
+ install the handler.
+
+:c:macro:`RTEMS_RESOURCE_IN_USE`
+ The :c:macro:`RTEMS_INTERRUPT_UNIQUE` option was set in ``options`` and the
+ interrupt vector was already occupied by a handler.
+
+:c:macro:`RTEMS_RESOURCE_IN_USE`
+ The :c:macro:`RTEMS_INTERRUPT_SHARED` option was set in ``options`` and the
+ interrupt vector was already occupied by a unique handler.
+
+:c:macro:`RTEMS_TOO_MANY`
+ The handler specified by ``routine`` was already installed for the
+ interrupt vector specified by ``vector`` with an argument equal to the
+ argument specified by ``arg``.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The :c:macro:`RTEMS_INTERRUPT_REPLACE` option was set in ``options`` and no
+ handler to replace was installed.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/handler-remove
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_handler_remove()
+
+.. _InterfaceRtemsInterruptHandlerRemove:
+
+rtems_interrupt_handler_remove()
+--------------------------------
+
+Removes the interrupt handler routine and argument from the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_handler_remove(
+ rtems_vector_number vector,
+ rtems_interrupt_handler routine,
+ void *arg
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``routine``
+ This parameter is the interrupt handler routine to remove.
+
+``arg``
+ This parameter is the interrupt handler argument to remove.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INCORRECT_STATE`
+ The service was not initialized.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``routine`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_CALLED_FROM_ISR`
+ The directive was called from within interrupt context.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ There was no handler routine and argument pair installed specified by
+ ``routine`` and ``arg``.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/vector-is-enabled
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_vector_is_enabled()
+
+.. _InterfaceRtemsInterruptVectorIsEnabled:
+
+rtems_interrupt_vector_is_enabled()
+-----------------------------------
+
+Checks if the interrupt vector is enabled.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_vector_is_enabled(
+ rtems_vector_number vector,
+ bool *enabled
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``enabled``
+ This parameter is the pointer to a ``bool`` object. When the directive
+ call is successful, the enabled status of the interrupt associated with the
+ interrupt vector specified by ``vector`` will be stored in this object.
+ When the interrupt was enabled for the processor executing the directive
+ call at some time point during the call, the object value will be set to
+ :c:macro:`true`, otherwise to :c:macro:`false`.
+
+.. rubric:: DESCRIPTION:
+
+The directive checks if the interrupt associated with the interrupt vector
+specified by ``vector`` was enabled for the processor executing the directive
+call at some time point during the call.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``enabled`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+.. rubric:: NOTES:
+
+Interrupt vectors may be enabled by :ref:`InterfaceRtemsInterruptVectorEnable`
+and disabled by :ref:`InterfaceRtemsInterruptVectorDisable`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/vector-enable
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_vector_enable()
+
+.. _InterfaceRtemsInterruptVectorEnable:
+
+rtems_interrupt_vector_enable()
+-------------------------------
+
+Enables the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_vector_enable( rtems_vector_number vector );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the number of the interrupt vector to enable.
+
+.. rubric:: DESCRIPTION:
+
+The directive enables the interrupt vector specified by ``vector``. This allows
+that interrupt service requests are issued to the target processors of the
+interrupt vector. Interrupt service requests for an interrupt vector may be
+raised by :ref:`InterfaceRtemsInterruptRaise`,
+:ref:`InterfaceRtemsInterruptRaiseOn`, external signals, or messages.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The request to enable the interrupt vector has not been satisfied.
+
+.. rubric:: NOTES:
+
+The :ref:`InterfaceRtemsInterruptGetAttributes` directive may be used to check
+if an interrupt vector can be enabled. Interrupt vectors may be disabled by
+:ref:`InterfaceRtemsInterruptVectorDisable`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/vector-disable
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_vector_disable()
+
+.. _InterfaceRtemsInterruptVectorDisable:
+
+rtems_interrupt_vector_disable()
+--------------------------------
+
+Disables the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_vector_disable( rtems_vector_number vector );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the number of the interrupt vector to disable.
+
+.. rubric:: DESCRIPTION:
+
+The directive disables the interrupt vector specified by ``vector``. This
+prevents that an interrupt service request is issued to the target processors
+of the interrupt vector.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The request to disable the interrupt vector has not been satisfied.
+
+.. rubric:: NOTES:
+
+The :ref:`InterfaceRtemsInterruptGetAttributes` directive may be used to check
+if an interrupt vector can be disabled. Interrupt vectors may be enabled by
+:ref:`InterfaceRtemsInterruptVectorEnable`. There may be targets on which some
+interrupt vectors cannot be disabled, for example a hardware watchdog interrupt
+or software generated interrupts.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/is-pending
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_is_pending()
+
+.. _InterfaceRtemsInterruptIsPending:
+
+rtems_interrupt_is_pending()
+----------------------------
+
+Checks if the interrupt is pending.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_is_pending(
+ rtems_vector_number vector,
+ bool *pending
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``pending``
+ This parameter is the pointer to a ``bool`` object. When the directive
+ call is successful, the pending status of the interrupt associated with the
+ interrupt vector specified by ``vector`` will be stored in this object.
+ When the interrupt was pending for the processor executing the directive
+ call at some time point during the call, the object value will be set to
+ :c:macro:`true`, otherwise to :c:macro:`false`.
+
+.. rubric:: DESCRIPTION:
+
+The directive checks if the interrupt associated with the interrupt vector
+specified by ``vector`` was pending for the processor executing the directive
+call at some time point during the call.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``pending`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The request to get the pending status has not been satisfied.
+
+.. rubric:: NOTES:
+
+Interrupts may be made pending by calling the
+:ref:`InterfaceRtemsInterruptRaise` or :ref:`InterfaceRtemsInterruptRaiseOn`
+directives or due to external signals or messages. The pending state may be
+cleared by :ref:`InterfaceRtemsInterruptClear`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/raise
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_raise()
+
+.. _InterfaceRtemsInterruptRaise:
+
+rtems_interrupt_raise()
+-----------------------
+
+Raises the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_raise( rtems_vector_number vector );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the number of the interrupt vector to raise.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The request to raise the interrupt vector has not been satisfied.
+
+.. rubric:: NOTES:
+
+The :ref:`InterfaceRtemsInterruptGetAttributes` directive may be used to check
+if an interrupt vector can be raised.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/raise-on
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_raise_on()
+
+.. _InterfaceRtemsInterruptRaiseOn:
+
+rtems_interrupt_raise_on()
+--------------------------
+
+Raises the interrupt vector on the processor.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_raise_on(
+ rtems_vector_number vector,
+ uint32_t cpu_index
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the number of the interrupt vector to raise.
+
+``cpu_index``
+ This parameter is the index of the target processor of the interrupt vector
+ to raise.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_NOT_CONFIGURED`
+ The processor specified by ``cpu_index`` was not configured to be used by
+ the application.
+
+:c:macro:`RTEMS_INCORRECT_STATE`
+ The processor specified by ``cpu_index`` was configured to be used by the
+ application, however, it was not online.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The request to raise the interrupt vector has not been satisfied.
+
+.. rubric:: NOTES:
+
+The :ref:`InterfaceRtemsInterruptGetAttributes` directive may be used to check
+if an interrupt vector can be raised on a processor.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/clear
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_clear()
+
+.. _InterfaceRtemsInterruptClear:
+
+rtems_interrupt_clear()
+-----------------------
+
+Clears the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_clear( rtems_vector_number vector );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the number of the interrupt vector to clear.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The request to raise the interrupt vector has not been satisfied.
+
+.. rubric:: NOTES:
+
+The :ref:`InterfaceRtemsInterruptGetAttributes` directive may be used to check
+if an interrupt vector can be cleared.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/get-affinity
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_get_affinity()
+
+.. _InterfaceRtemsInterruptGetAffinity:
+
+rtems_interrupt_get_affinity()
+------------------------------
+
+Gets the processor affinity set of the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_get_affinity(
+ rtems_vector_number vector,
+ size_t affinity_size,
+ cpu_set_t *affinity
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``affinity_size``
+ This parameter is the size of the processor set referenced by ``affinity``
+ in bytes.
+
+``affinity``
+ This parameter is the pointer to a :c:type:`cpu_set_t` object. When the
+ directive call is successful, the processor affinity set of the interrupt
+ vector will be stored in this object. A set bit in the processor set means
+ that the corresponding processor is in the processor affinity set of the
+ interrupt vector, otherwise the bit is cleared.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``affinity`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_INVALID_SIZE`
+ The size specified by ``affinity_size`` of the processor set was too small
+ for the processor affinity set of the interrupt vector.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/set-affinity
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_set_affinity()
+
+.. _InterfaceRtemsInterruptSetAffinity:
+
+rtems_interrupt_set_affinity()
+------------------------------
+
+Sets the processor affinity set of the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_set_affinity(
+ rtems_vector_number vector,
+ size_t affinity_size,
+ const cpu_set_t *affinity
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``affinity_size``
+ This parameter is the size of the processor set referenced by ``affinity``
+ in bytes.
+
+``affinity``
+ This parameter is the pointer to a :c:type:`cpu_set_t` object. The
+ processor set defines the new processor affinity set of the interrupt
+ vector. A set bit in the processor set means that the corresponding
+ processor shall be in the processor affinity set of the interrupt vector,
+ otherwise the bit shall be cleared.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``affinity`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_INVALID_NUMBER`
+ The referenced processor set was not a valid new processor affinity set for
+ the interrupt vector.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The request to set the processor affinity of the interrupt vector has not
+ been satisfied.
+
+.. rubric:: NOTES:
+
+The :ref:`InterfaceRtemsInterruptGetAttributes` directive may be used to check
+if the processor affinity of an interrupt vector can be set.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/get-attributes
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_get_attributes()
+
+.. _InterfaceRtemsInterruptGetAttributes:
+
+rtems_interrupt_get_attributes()
+--------------------------------
+
+Gets the attributes of the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_get_attributes(
+ rtems_vector_number vector,
+ rtems_interrupt_attributes *attributes
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``attributes``
+ This parameter is the pointer to an :c:type:`rtems_interrupt_attributes`
+ object. When the directive call is successful, the attributes of the
+ interrupt vector will be stored in this object.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``attributes`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/handler-iterate
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_handler_iterate()
+
+.. _InterfaceRtemsInterruptHandlerIterate:
+
+rtems_interrupt_handler_iterate()
+---------------------------------
+
+Iterates over all interrupt handler installed at the interrupt vector.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_handler_iterate(
+ rtems_vector_number vector,
+ rtems_interrupt_per_handler_routine routine,
+ void *arg
+ );
+
+.. rubric:: PARAMETERS:
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``routine``
+ This parameter is the visitor routine.
+
+``arg``
+ This parameter is the visitor argument.
+
+.. rubric:: DESCRIPTION:
+
+For each installed handler at the interrupt vector the visitor function
+specified by ``routine`` will be called with the argument specified by ``arg``
+and the handler information, options, routine and argument.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INCORRECT_STATE`
+ The service was not initialized.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``routine`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_CALLED_FROM_ISR`
+ The directive was called from within interrupt context.
+
+.. rubric:: NOTES:
+
+The directive is intended for system information and diagnostics.
+
+Never install or remove an interrupt handler within the visitor function. This
+may result in a deadlock.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/server-initialize
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_initialize()
+
+.. _InterfaceRtemsInterruptServerInitialize:
+
+rtems_interrupt_server_initialize()
+-----------------------------------
+
+Initializes the interrupt server tasks.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_initialize(
+ rtems_task_priority priority,
+ size_t stack_size,
+ rtems_mode modes,
+ rtems_attribute attributes,
+ uint32_t *server_count
+ );
+
+.. rubric:: PARAMETERS:
+
+``priority``
+ This parameter is the initial :term:`task priority` of the created
+ interrupt servers.
+
+``stack_size``
+ This parameter is the task stack size of the created interrupt servers.
+
+``modes``
+ This parameter is the initial mode set of the created interrupt servers.
+
+``attributes``
+ This parameter is the attribute set of the created interrupt servers.
+
+``server_count``
+ This parameter is the pointer to an `uint32_t
+ <https://en.cppreference.com/w/c/types/integer>`_ object or `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_. When the pointer is not
+ equal to `NULL <https://en.cppreference.com/w/c/types/NULL>`_, the count of
+ successfully created interrupt servers is stored in this object regardless
+ of the return status.
+
+.. rubric:: DESCRIPTION:
+
+The directive tries to create an interrupt server task for each online
+processor in the system. The tasks will have the initial priority specified by
+``priority``, the stack size specified by ``stack_size``, the initial mode set
+specified by ``modes``, and the attribute set specified by ``attributes``. The
+count of successfully created server tasks will be returned in ``server_count``
+if the pointer is not equal to `NULL
+<https://en.cppreference.com/w/c/types/NULL>`_.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INCORRECT_STATE`
+ The interrupt servers were already initialized.
+
+The directive uses :ref:`InterfaceRtemsTaskCreate`. If this directive fails,
+then its error status will be returned.
+
+.. rubric:: NOTES:
+
+Interrupt handlers may be installed on an interrupt server with
+:ref:`InterfaceRtemsInterruptServerHandlerInstall` and removed with
+:ref:`InterfaceRtemsInterruptServerHandlerRemove` using a server index. In
+case of an interrupt, the request will be forwarded to the interrupt server.
+The handlers are executed within the interrupt server context. If one handler
+blocks on something this may delay the processing of other handlers.
+
+Interrupt servers may be deleted by :ref:`InterfaceRtemsInterruptServerDelete`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/server-create
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_create()
+
+.. _InterfaceRtemsInterruptServerCreate:
+
+rtems_interrupt_server_create()
+-------------------------------
+
+Creates an interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_create(
+ rtems_interrupt_server_control *control,
+ const rtems_interrupt_server_config *config,
+ uint32_t *server_index
+ );
+
+.. rubric:: PARAMETERS:
+
+``control``
+ This parameter is the pointer to an
+ :c:type:`rtems_interrupt_server_control` object. When the directive call
+ was successful, the ownership of the object was transferred from the caller
+ of the directive to the interrupt server management.
+
+``config``
+ This parameter is the interrupt server configuration.
+
+``server_index``
+ This parameter is the pointer to an `uint32_t
+ <https://en.cppreference.com/w/c/types/integer>`_ object. When the
+ directive call was successful, the index of the created interrupt server
+ will be stored in this object.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+The directive uses :ref:`InterfaceRtemsTaskCreate`. If this directive fails,
+then its error status will be returned.
+
+.. rubric:: NOTES:
+
+See also :ref:`InterfaceRtemsInterruptServerInitialize` and
+:ref:`InterfaceRtemsInterruptServerDelete`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/server-handler-install
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_handler_install()
+
+.. _InterfaceRtemsInterruptServerHandlerInstall:
+
+rtems_interrupt_server_handler_install()
+----------------------------------------
+
+Installs the interrupt handler routine and argument at the interrupt vector on
+the interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_handler_install(
+ uint32_t server_index,
+ rtems_vector_number vector,
+ const char *info,
+ rtems_option options,
+ rtems_interrupt_handler routine,
+ void *arg
+ );
+
+.. rubric:: PARAMETERS:
+
+``server_index``
+ This parameter is the interrupt server index. The constant
+ :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify the
+ default interrupt server.
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``info``
+ This parameter is the descriptive information of the interrupt handler to
+ install.
+
+``options``
+ This parameter is the interrupt handler install option set.
+
+``routine``
+ This parameter is the interrupt handler routine to install.
+
+``arg``
+ This parameter is the interrupt handler argument to install.
+
+.. rubric:: DESCRIPTION:
+
+The handler routine specified by ``routine`` will be executed within the
+context of the interrupt server task specified by ``server_index``.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``server_index``.
+
+:c:macro:`RTEMS_CALLED_FROM_ISR`
+ The directive was called from within interrupt context.
+
+:c:macro:`RTEMS_INVALID_ADDRESS`
+ The ``routine`` parameter was `NULL
+ <https://en.cppreference.com/w/c/types/NULL>`_.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_INVALID_NUMBER`
+ An option specified by ``info`` was not applicable.
+
+:c:macro:`RTEMS_RESOURCE_IN_USE`
+ The :c:macro:`RTEMS_INTERRUPT_UNIQUE` option was set in ``info`` and the
+ interrupt vector was already occupied by a handler.
+
+:c:macro:`RTEMS_RESOURCE_IN_USE`
+ The :c:macro:`RTEMS_INTERRUPT_SHARED` option was set in ``info`` and the
+ interrupt vector was already occupied by a unique handler.
+
+:c:macro:`RTEMS_TOO_MANY`
+ The handler specified by ``routine`` was already installed for the
+ interrupt vector specified by ``vector`` with an argument equal to the
+ argument specified by ``arg``.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ The :c:macro:`RTEMS_INTERRUPT_REPLACE` option was set in ``info`` and no
+ handler to replace was installed.
+
+.. rubric:: NOTES:
+
+See also :ref:`InterfaceRtemsInterruptHandlerInstall`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/server-handler-remove
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_handler_remove()
+
+.. _InterfaceRtemsInterruptServerHandlerRemove:
+
+rtems_interrupt_server_handler_remove()
+---------------------------------------
+
+Removes the interrupt handler routine and argument from the interrupt vector
+and the interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_handler_remove(
+ uint32_t server_index,
+ rtems_vector_number vector,
+ rtems_interrupt_handler routine,
+ void *arg
+ );
+
+.. rubric:: PARAMETERS:
+
+``server_index``
+ This parameter is the interrupt server index. The constant
+ :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify the
+ default interrupt server.
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``routine``
+ This parameter is the interrupt handler routine to remove.
+
+``arg``
+ This parameter is the interrupt handler argument to remove.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``server_index``.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+:c:macro:`RTEMS_UNSATISFIED`
+ There was no handler routine and argument pair installed specified by
+ ``routine`` and ``arg``.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+* The directive sends a request to another task and waits for a response. This
+ may cause the calling task to be blocked and unblocked.
+
+* The directive shall not be called from within the context of an interrupt
+ server. Calling the directive from within the context of an interrupt server
+ is undefined behaviour.
+
+.. Generated from spec:/rtems/intr/if/server-set-affinity
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_set_affinity()
+
+.. _InterfaceRtemsInterruptServerSetAffinity:
+
+rtems_interrupt_server_set_affinity()
+-------------------------------------
+
+Sets the processor affinity of the interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_set_affinity(
+ uint32_t server_index,
+ size_t affinity_size,
+ const cpu_set_t *affinity,
+ rtems_task_priority priority
+ );
+
+.. rubric:: PARAMETERS:
+
+``server_index``
+ This parameter is the interrupt server index. The constant
+ :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify the
+ default interrupt server.
+
+``affinity_size``
+ This parameter is the size of the processor set referenced by ``affinity``
+ in bytes.
+
+``affinity``
+ This parameter is the pointer to a :c:type:`cpu_set_t` object. The
+ processor set defines the new processor affinity set of the interrupt
+ server. A set bit in the processor set means that the corresponding
+ processor shall be in the processor affinity set of the task, otherwise the
+ bit shall be cleared.
+
+``priority``
+ This parameter is the new :term:`real priority` for the interrupt server.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``server_index``.
+
+The directive uses :ref:`InterfaceRtemsSchedulerIdentByProcessorSet`,
+:ref:`InterfaceRtemsTaskSetScheduler`, and
+:ref:`InterfaceRtemsTaskSetAffinity`. If one of these directive fails, then
+its error status will be returned.
+
+.. rubric:: NOTES:
+
+The scheduler is set determined by the highest numbered processor in the
+affinity set specified by ``affinity``.
+
+This operation is only reliable in case the interrupt server was suspended via
+:ref:`InterfaceRtemsInterruptServerSuspend`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may change the processor affinity of a task. This may cause
+ the calling task to be preempted.
+
+* The directive may change the priority of a task. This may cause the calling
+ task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/server-delete
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_delete()
+
+.. _InterfaceRtemsInterruptServerDelete:
+
+rtems_interrupt_server_delete()
+-------------------------------
+
+Deletes the interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_delete( uint32_t server_index );
+
+.. rubric:: PARAMETERS:
+
+``server_index``
+ This parameter is the index of the interrupt server to delete.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the server index specified by
+ ``server_index``.
+
+.. rubric:: NOTES:
+
+The interrupt server deletes itself, so after the return of the directive the
+interrupt server may be still in the termination process depending on the task
+priorities of the system.
+
+See also :ref:`InterfaceRtemsInterruptServerCreate`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within task context.
+
+* The directive shall not be called from within the context of an interrupt
+ server. Calling the directive from within the context of an interrupt server
+ is undefined behaviour.
+
+* The directive sends a request to another task and waits for a response. This
+ may cause the calling task to be blocked and unblocked.
+
+.. Generated from spec:/rtems/intr/if/server-suspend
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_suspend()
+
+.. _InterfaceRtemsInterruptServerSuspend:
+
+rtems_interrupt_server_suspend()
+--------------------------------
+
+Suspends the interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_suspend( uint32_t server_index );
+
+.. rubric:: PARAMETERS:
+
+``server_index``
+ This parameter is the index of the interrupt server to suspend. The
+ constant :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify
+ the default interrupt server.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``server_index``.
+
+.. rubric:: NOTES:
+
+Interrupt server may be resumed by :ref:`InterfaceRtemsInterruptServerResume`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within task context.
+
+* The directive shall not be called from within the context of an interrupt
+ server. Calling the directive from within the context of an interrupt server
+ is undefined behaviour.
+
+* The directive sends a request to another task and waits for a response. This
+ may cause the calling task to be blocked and unblocked.
+
+.. Generated from spec:/rtems/intr/if/server-resume
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_resume()
+
+.. _InterfaceRtemsInterruptServerResume:
+
+rtems_interrupt_server_resume()
+-------------------------------
+
+Resumes the interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_resume( uint32_t server_index );
+
+.. rubric:: PARAMETERS:
+
+``server_index``
+ This parameter is the index of the interrupt server to resume. The
+ constant :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify
+ the default interrupt server.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``server_index``.
+
+.. rubric:: NOTES:
+
+Interrupt server may be suspended by
+:ref:`InterfaceRtemsInterruptServerSuspend`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within task context.
+
+* The directive shall not be called from within the context of an interrupt
+ server. Calling the directive from within the context of an interrupt server
+ is undefined behaviour.
+
+* The directive sends a request to another task and waits for a response. This
+ may cause the calling task to be blocked and unblocked.
+
+.. Generated from spec:/rtems/intr/if/server-move
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_move()
+
+.. _InterfaceRtemsInterruptServerMove:
+
+rtems_interrupt_server_move()
+-----------------------------
+
+Moves the interrupt handlers installed at the interrupt vector and the source
+interrupt server to the destination interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_move(
+ uint32_t source_server_index,
+ rtems_vector_number vector,
+ uint32_t destination_server_index
+ );
+
+.. rubric:: PARAMETERS:
+
+``source_server_index``
+ This parameter is the index of the source interrupt server. The constant
+ :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify the
+ default interrupt server.
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``destination_server_index``
+ This parameter is the index of the destination interrupt server. The
+ constant :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify
+ the default interrupt server.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``source_server_index``.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``destination_server_index``.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within task context.
+
+* The directive shall not be called from within the context of an interrupt
+ server. Calling the directive from within the context of an interrupt server
+ is undefined behaviour.
+
+* The directive sends a request to another task and waits for a response. This
+ may cause the calling task to be blocked and unblocked.
+
+.. Generated from spec:/rtems/intr/if/server-handler-iterate
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_handler_iterate()
+
+.. _InterfaceRtemsInterruptServerHandlerIterate:
+
+rtems_interrupt_server_handler_iterate()
+----------------------------------------
+
+Iterates over all interrupt handler installed at the interrupt vector and
+interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_handler_iterate(
+ uint32_t server_index,
+ rtems_vector_number vector,
+ rtems_interrupt_per_handler_routine routine,
+ void *arg
+ );
+
+.. rubric:: PARAMETERS:
+
+``server_index``
+ This parameter is the index of the interrupt server.
+
+``vector``
+ This parameter is the interrupt vector number.
+
+``routine``
+ This parameter is the visitor routine.
+
+``arg``
+ This parameter is the visitor argument.
+
+.. rubric:: DESCRIPTION:
+
+For each installed handler at the interrupt vector and interrupt server the
+visitor function specified by ``vector`` will be called with the argument
+specified by ``routine`` and the handler information, options, routine and
+argument.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``server_index``.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt vector associated with the number specified by
+ ``vector``.
+
+.. rubric:: NOTES:
+
+The directive is intended for system information and diagnostics.
+
+Never install or remove an interrupt handler within the visitor function. This
+may result in a deadlock.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/server-entry-initialize
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_entry_initialize()
+
+.. _InterfaceRtemsInterruptServerEntryInitialize:
+
+rtems_interrupt_server_entry_initialize()
+-----------------------------------------
+
+Initializes the interrupt server entry.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_entry_initialize(
+ uint32_t server_index,
+ rtems_interrupt_server_entry *entry
+ );
+
+.. rubric:: PARAMETERS:
+
+``server_index``
+ This parameter is the interrupt server index. The constant
+ :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify the
+ default interrupt server.
+
+``entry``
+ This parameter is the interrupt server entry to initialize.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``server_index``.
+
+.. rubric:: NOTES:
+
+After initialization, the list of actions of the interrupt server entry is
+empty. Actions may be prepended by
+:ref:`InterfaceRtemsInterruptServerActionPrepend`. Interrupt server entries may
+be moved to another interrupt vector with
+:ref:`InterfaceRtemsInterruptServerEntryMove`. Server entries may be submitted
+to get serviced by the interrupt server with
+:ref:`InterfaceRtemsInterruptServerEntrySubmit`. Server entries may be
+destroyed by :ref:`InterfaceRtemsInterruptServerEntryDestroy`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/server-action-prepend
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_action_prepend()
+
+.. _InterfaceRtemsInterruptServerActionPrepend:
+
+rtems_interrupt_server_action_prepend()
+---------------------------------------
+
+Prepends the interrupt server action to the list of actions of the interrupt
+server entry.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ void rtems_interrupt_server_action_prepend(
+ rtems_interrupt_server_entry *entry,
+ rtems_interrupt_server_action *action,
+ rtems_interrupt_handler routine,
+ void *arg
+ );
+
+.. rubric:: PARAMETERS:
+
+``entry``
+ This parameter is the interrupt server entry to prepend the interrupt
+ server action. It shall have been initialized via
+ :ref:`InterfaceRtemsInterruptServerEntryInitialize`.
+
+``action``
+ This parameter is the interrupt server action to initialize and prepend to
+ the list of actions of the entry.
+
+``routine``
+ This parameter is the interrupt handler routine to set in the action.
+
+``arg``
+ This parameter is the interrupt handler argument to set in the action.
+
+.. rubric:: NOTES:
+
+No error checking is performed by the directive.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+* The interrupt server entry shall have been initialized by
+ :ref:`InterfaceRtemsInterruptServerEntryInitialize` and further optional
+ calls to :ref:`InterfaceRtemsInterruptServerActionPrepend`.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerActionPrepend` with the same interrupt
+ server entry. Calling the directive under this condition is undefined
+ behaviour.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerEntryMove` with the same interrupt server
+ entry. Calling the directive under this condition is undefined behaviour.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerEntrySubmit` with the same interrupt
+ server entry. Calling the directive under this condition is undefined
+ behaviour.
+
+* The directive shall not be called while the interrupt server entry is pending
+ on or serviced by its current interrupt server. Calling the directive under
+ these conditions is undefined behaviour.
+
+.. Generated from spec:/rtems/intr/if/server-entry-destroy
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_entry_destroy()
+
+.. _InterfaceRtemsInterruptServerEntryDestroy:
+
+rtems_interrupt_server_entry_destroy()
+--------------------------------------
+
+Destroys the interrupt server entry.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ void rtems_interrupt_server_entry_destroy(
+ rtems_interrupt_server_entry *entry
+ );
+
+.. rubric:: PARAMETERS:
+
+``entry``
+ This parameter is the interrupt server entry to destroy.
+
+.. rubric:: NOTES:
+
+No error checking is performed by the directive.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within task context.
+
+* The directive shall not be called from within the context of an interrupt
+ server. Calling the directive from within the context of an interrupt server
+ is undefined behaviour.
+
+* The directive sends a request to another task and waits for a response. This
+ may cause the calling task to be blocked and unblocked.
+
+* The interrupt server entry shall have been initialized by
+ :ref:`InterfaceRtemsInterruptServerEntryInitialize` and further optional
+ calls to :ref:`InterfaceRtemsInterruptServerActionPrepend`.
+
+.. Generated from spec:/rtems/intr/if/server-entry-submit
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_entry_submit()
+
+.. _InterfaceRtemsInterruptServerEntrySubmit:
+
+rtems_interrupt_server_entry_submit()
+-------------------------------------
+
+Submits the interrupt server entry to be serviced by the interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ void rtems_interrupt_server_entry_submit(
+ rtems_interrupt_server_entry *entry
+ );
+
+.. rubric:: PARAMETERS:
+
+``entry``
+ This parameter is the interrupt server entry to submit.
+
+.. rubric:: DESCRIPTION:
+
+The directive appends the entry to the pending entries of the interrupt server.
+The interrupt server is notified that a new entry is pending. Once the
+interrupt server is scheduled it services the actions of all pending entries.
+
+.. rubric:: NOTES:
+
+This directive may be used to do a two-step interrupt processing. The first
+step is done from within interrupt context by a call to this directive. The
+second step is then done from within the context of the interrupt server.
+
+No error checking is performed by the directive.
+
+A submitted entry may be destroyed by
+:ref:`InterfaceRtemsInterruptServerEntryDestroy`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may unblock a task. This may cause the calling task to be
+ preempted.
+
+* The interrupt server entry shall have been initialized by
+ :ref:`InterfaceRtemsInterruptServerEntryInitialize` and further optional
+ calls to :ref:`InterfaceRtemsInterruptServerActionPrepend`.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerActionPrepend` with the same interrupt
+ server entry. Calling the directive under this condition is undefined
+ behaviour.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerEntryMove` with the same interrupt server
+ entry. Calling the directive under this condition is undefined behaviour.
+
+.. Generated from spec:/rtems/intr/if/server-entry-move
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_entry_move()
+
+.. _InterfaceRtemsInterruptServerEntryMove:
+
+rtems_interrupt_server_entry_move()
+-----------------------------------
+
+Moves the interrupt server entry to the interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_entry_move(
+ rtems_interrupt_server_entry *entry,
+ uint32_t server_index
+ );
+
+.. rubric:: PARAMETERS:
+
+``entry``
+ This parameter is the interrupt server entry to move.
+
+``server_index``
+ This parameter is the index of the destination interrupt server. The
+ constant :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify
+ the default interrupt server.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``server_index``.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+* The interrupt server entry shall have been initialized by
+ :ref:`InterfaceRtemsInterruptServerEntryInitialize` and further optional
+ calls to :ref:`InterfaceRtemsInterruptServerActionPrepend`.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerActionPrepend` with the same interrupt
+ server entry. Calling the directive under this condition is undefined
+ behaviour.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerEntryMove` with the same interrupt server
+ entry. Calling the directive under this condition is undefined behaviour.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerEntrySubmit` with the same interrupt
+ server entry. Calling the directive under this condition is undefined
+ behaviour.
+
+* The directive shall not be called while the interrupt server entry is pending
+ on or serviced by its current interrupt server. Calling the directive under
+ these conditions is undefined behaviour.
+
+.. Generated from spec:/rtems/intr/if/server-request-initialize
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_request_initialize()
+
+.. _InterfaceRtemsInterruptServerRequestInitialize:
+
+rtems_interrupt_server_request_initialize()
+-------------------------------------------
+
+Initializes the interrupt server request.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ rtems_status_code rtems_interrupt_server_request_initialize(
+ uint32_t server_index,
+ rtems_interrupt_server_request *request,
+ rtems_interrupt_handler routine,
+ void *arg
+ );
+
+.. rubric:: PARAMETERS:
+
+``server_index``
+ This parameter is the interrupt server index. The constant
+ :c:macro:`RTEMS_INTERRUPT_SERVER_DEFAULT` may be used to specify the
+ default interrupt server.
+
+``request``
+ This parameter is the interrupt server request to initialize.
+
+``routine``
+ This parameter is the interrupt handler routine for the request action.
+
+``arg``
+ This parameter is the interrupt handler argument for the request action.
+
+.. rubric:: RETURN VALUES:
+
+:c:macro:`RTEMS_SUCCESSFUL`
+ The requested operation was successful.
+
+:c:macro:`RTEMS_INVALID_ID`
+ There was no interrupt server associated with the index specified by
+ ``server_index``.
+
+.. rubric:: NOTES:
+
+An interrupt server requests consists of an interrupt server entry and exactly
+one interrupt server action. The interrupt vector of the request may be
+changed with :ref:`InterfaceRtemsInterruptServerRequestSetVector`. Interrupt
+server requests may be submitted to get serviced by the interrupt server with
+:ref:`InterfaceRtemsInterruptServerRequestSubmit`. Requests may be destroyed
+by :ref:`InterfaceRtemsInterruptServerRequestDestroy`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may obtain and release the object allocator mutex. This may
+ cause the calling task to be preempted.
+
+.. Generated from spec:/rtems/intr/if/server-request-set-vector
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_request_set_vector()
+
+.. _InterfaceRtemsInterruptServerRequestSetVector:
+
+rtems_interrupt_server_request_set_vector()
+-------------------------------------------
+
+Sets the interrupt vector in the interrupt server request.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ void rtems_interrupt_server_request_set_vector(
+ rtems_interrupt_server_request *request,
+ rtems_vector_number vector
+ );
+
+.. rubric:: PARAMETERS:
+
+``request``
+ This parameter is the interrupt server request to change.
+
+``vector``
+ This parameter is the interrupt vector number to be used by the request.
+
+.. rubric:: NOTES:
+
+By default, the interrupt vector of an interrupt server request is set to a
+special value which is outside the range of vectors supported by the interrupt
+controller hardware.
+
+Calls to :ref:`InterfaceRtemsInterruptServerRequestSubmit` will disable the
+interrupt vector of the request. After processing of the request by the
+interrupt server the interrupt vector will be enabled again.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive will not cause the calling task to be preempted.
+
+* The interrupt server request shall have been initialized by
+ :ref:`InterfaceRtemsInterruptServerRequestInitialize`.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerRequestSetVector` with the same interrupt
+ server request. Calling the directive under this condition is undefined
+ behaviour.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerRequestSubmit` with the same interrupt
+ server request. Calling the directive under this condition is undefined
+ behaviour.
+
+* The directive shall not be called while the interrupt server entry is pending
+ on or serviced by its current interrupt server. Calling the directive under
+ these conditions is undefined behaviour.
+
+.. Generated from spec:/rtems/intr/if/server-request-destroy
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_request_destroy()
+
+.. _InterfaceRtemsInterruptServerRequestDestroy:
+
+rtems_interrupt_server_request_destroy()
+----------------------------------------
+
+Destroys the interrupt server request.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ void rtems_interrupt_server_request_destroy(
+ rtems_interrupt_server_request *request
+ );
+
+.. rubric:: PARAMETERS:
+
+``request``
+ This parameter is the interrupt server request to destroy.
+
+.. rubric:: NOTES:
+
+No error checking is performed by the directive.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within task context.
+
+* The directive shall not be called from within the context of an interrupt
+ server. Calling the directive from within the context of an interrupt server
+ is undefined behaviour.
+
+* The directive sends a request to another task and waits for a response. This
+ may cause the calling task to be blocked and unblocked.
+
+* The interrupt server request shall have been initialized by
+ :ref:`InterfaceRtemsInterruptServerRequestInitialize`.
+
+.. Generated from spec:/rtems/intr/if/server-request-submit
+
+.. raw:: latex
+
+ \clearpage
+
+.. index:: rtems_interrupt_server_request_submit()
+
+.. _InterfaceRtemsInterruptServerRequestSubmit:
+
+rtems_interrupt_server_request_submit()
+---------------------------------------
+
+Submits the interrupt server request to be serviced by the interrupt server.
+
+.. rubric:: CALLING SEQUENCE:
+
+.. code-block:: c
+
+ void rtems_interrupt_server_request_submit(
+ rtems_interrupt_server_request *request
+ );
+
+.. rubric:: PARAMETERS:
+
+``request``
+ This parameter is the interrupt server request to submit.
+
+.. rubric:: DESCRIPTION:
+
+The directive appends the interrupt server entry of the request to the pending
+entries of the interrupt server. The interrupt server is notified that a new
+entry is pending. Once the interrupt server is scheduled it services the
+actions of all pending entries.
+
+.. rubric:: NOTES:
+
+This directive may be used to do a two-step interrupt processing. The first
+step is done from within interrupt context by a call to this directive. The
+second step is then done from within the context of the interrupt server.
+
+No error checking is performed by the directive.
+
+A submitted request may be destroyed by
+:ref:`InterfaceRtemsInterruptServerRequestDestroy`.
+
+.. rubric:: CONSTRAINTS:
+
+The following constraints apply to this directive:
+
+* The directive may be called from within interrupt context.
+
+* The directive may be called from within device driver initialization context.
+
+* The directive may be called from within task context.
+
+* The directive may unblock a task. This may cause the calling task to be
+ preempted.
+
+* The interrupt server request shall have been initialized by
+ :ref:`InterfaceRtemsInterruptServerRequestInitialize`.
+
+* The directive shall not be called concurrently with
+ :ref:`InterfaceRtemsInterruptServerRequestSetVector` with the same interrupt
+ server request. Calling the directive under this condition is undefined
+ behaviour.
diff --git a/c-user/interrupt/introduction.rst b/c-user/interrupt/introduction.rst
index 3d5c71d..7987b54 100644
--- a/c-user/interrupt/introduction.rst
+++ b/c-user/interrupt/introduction.rst
@@ -1,6 +1,6 @@
.. SPDX-License-Identifier: CC-BY-SA-4.0
-.. Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+.. Copyright (C) 2008, 2021 embedded brains GmbH (http://www.embedded-brains.de)
.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
.. This file is part of the RTEMS quality process and was automatically
@@ -33,8 +33,6 @@ Introduction
.. spec:/rtems/intr/if/local-disable
.. spec:/rtems/intr/if/local-enable
.. spec:/rtems/intr/if/is-in-progress
-.. spec:/rtems/intr/if/cause
-.. spec:/rtems/intr/if/clear
.. spec:/rtems/intr/if/lock-initialize
.. spec:/rtems/intr/if/lock-destroy
.. spec:/rtems/intr/if/lock-acquire
@@ -47,6 +45,42 @@ Introduction
.. spec:/rtems/intr/if/lock-initializer
.. spec:/rtems/intr/if/lock-member
.. spec:/rtems/intr/if/lock-reference
+.. spec:/rtems/intr/if/entry-initializer
+.. spec:/rtems/intr/if/entry-initialize
+.. spec:/rtems/intr/if/entry-install
+.. spec:/rtems/intr/if/entry-remove
+.. spec:/rtems/intr/if/handler-install
+.. spec:/rtems/intr/if/handler-remove
+.. spec:/rtems/intr/if/vector-is-enabled
+.. spec:/rtems/intr/if/vector-enable
+.. spec:/rtems/intr/if/vector-disable
+.. spec:/rtems/intr/if/is-pending
+.. spec:/rtems/intr/if/raise
+.. spec:/rtems/intr/if/raise-on
+.. spec:/rtems/intr/if/clear
+.. spec:/rtems/intr/if/get-affinity
+.. spec:/rtems/intr/if/set-affinity
+.. spec:/rtems/intr/if/get-attributes
+.. spec:/rtems/intr/if/handler-iterate
+.. spec:/rtems/intr/if/server-initialize
+.. spec:/rtems/intr/if/server-create
+.. spec:/rtems/intr/if/server-handler-install
+.. spec:/rtems/intr/if/server-handler-remove
+.. spec:/rtems/intr/if/server-set-affinity
+.. spec:/rtems/intr/if/server-delete
+.. spec:/rtems/intr/if/server-suspend
+.. spec:/rtems/intr/if/server-resume
+.. spec:/rtems/intr/if/server-move
+.. spec:/rtems/intr/if/server-handler-iterate
+.. spec:/rtems/intr/if/server-entry-initialize
+.. spec:/rtems/intr/if/server-action-prepend
+.. spec:/rtems/intr/if/server-entry-destroy
+.. spec:/rtems/intr/if/server-entry-submit
+.. spec:/rtems/intr/if/server-entry-move
+.. spec:/rtems/intr/if/server-request-initialize
+.. spec:/rtems/intr/if/server-request-set-vector
+.. spec:/rtems/intr/if/server-request-destroy
+.. spec:/rtems/intr/if/server-request-submit
Any real-time executive must provide a mechanism for quick response to
externally generated interrupts to satisfy the critical time constraints of the
@@ -76,10 +110,6 @@ from an ISR. The directives provided by the Interrupt Manager are:
* :ref:`InterfaceRtemsInterruptIsInProgress` - Checks if an ISR is in progress
on the current processor.
-* :ref:`InterfaceRtemsInterruptCause` - Causes the interrupt.
-
-* :ref:`InterfaceRtemsInterruptClear` - Clears the interrupt.
-
* :ref:`InterfaceRtemsInterruptLockInitialize` - Initializes the ISR lock.
* :ref:`InterfaceRtemsInterruptLockDestroy` - Destroys the ISR lock.
@@ -108,3 +138,104 @@ from an ISR. The directives provided by the Interrupt Manager are:
* :ref:`InterfaceRTEMSINTERRUPTLOCKREFERENCE` - Defines an ISR lock object
reference.
+
+* :ref:`InterfaceRTEMSINTERRUPTENTRYINITIALIZER` - Statically initializes an
+ interrupt entry object.
+
+* :ref:`InterfaceRtemsInterruptEntryInitialize` - Initializes the interrupt
+ entry.
+
+* :ref:`InterfaceRtemsInterruptEntryInstall` - Installs the interrupt entry at
+ the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptEntryRemove` - Removes the interrupt entry from
+ the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptHandlerInstall` - Installs the interrupt handler
+ routine and argument at the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptHandlerRemove` - Removes the interrupt handler
+ routine and argument from the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptVectorIsEnabled` - Checks if the interrupt
+ vector is enabled.
+
+* :ref:`InterfaceRtemsInterruptVectorEnable` - Enables the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptVectorDisable` - Disables the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptIsPending` - Checks if the interrupt is pending.
+
+* :ref:`InterfaceRtemsInterruptRaise` - Raises the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptRaiseOn` - Raises the interrupt vector on the
+ processor.
+
+* :ref:`InterfaceRtemsInterruptClear` - Clears the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptGetAffinity` - Gets the processor affinity set
+ of the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptSetAffinity` - Sets the processor affinity set
+ of the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptGetAttributes` - Gets the attributes of the
+ interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptHandlerIterate` - Iterates over all interrupt
+ handler installed at the interrupt vector.
+
+* :ref:`InterfaceRtemsInterruptServerInitialize` - Initializes the interrupt
+ server tasks.
+
+* :ref:`InterfaceRtemsInterruptServerCreate` - Creates an interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerHandlerInstall` - Installs the interrupt
+ handler routine and argument at the interrupt vector on the interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerHandlerRemove` - Removes the interrupt
+ handler routine and argument from the interrupt vector and the interrupt
+ server.
+
+* :ref:`InterfaceRtemsInterruptServerSetAffinity` - Sets the processor affinity
+ of the interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerDelete` - Deletes the interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerSuspend` - Suspends the interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerResume` - Resumes the interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerMove` - Moves the interrupt handlers
+ installed at the interrupt vector and the source interrupt server to the
+ destination interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerHandlerIterate` - Iterates over all
+ interrupt handler installed at the interrupt vector and interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerEntryInitialize` - Initializes the
+ interrupt server entry.
+
+* :ref:`InterfaceRtemsInterruptServerActionPrepend` - Prepends the interrupt
+ server action to the list of actions of the interrupt server entry.
+
+* :ref:`InterfaceRtemsInterruptServerEntryDestroy` - Destroys the interrupt
+ server entry.
+
+* :ref:`InterfaceRtemsInterruptServerEntrySubmit` - Submits the interrupt
+ server entry to be serviced by the interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerEntryMove` - Moves the interrupt server
+ entry to the interrupt server.
+
+* :ref:`InterfaceRtemsInterruptServerRequestInitialize` - Initializes the
+ interrupt server request.
+
+* :ref:`InterfaceRtemsInterruptServerRequestSetVector` - Sets the interrupt
+ vector in the interrupt server request.
+
+* :ref:`InterfaceRtemsInterruptServerRequestDestroy` - Destroys the interrupt
+ server request.
+
+* :ref:`InterfaceRtemsInterruptServerRequestSubmit` - Submits the interrupt
+ server request to be serviced by the interrupt server.