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 /* SPDX-License-Identifier: BSD-2-Clause */
 
 /**
  * @file
  *
  * @ingroup RtemsIntrReqIsPending
  */
 
 /*
  * Copyright (C) 2021 embedded brains GmbH & Co. KG
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
 /*
  * This file is part of the RTEMS quality process and was automatically
  * generated.  If you find something that needs to be fixed or
  * worded better please post a report or patch to an RTEMS mailing list
  * or raise a bug report:
  *
  * https://www.rtems.org/bugs.html
  *
  * For information on updating and regenerating please refer to the How-To
  * section in the Software Requirements Engineering chapter of the
  * RTEMS Software Engineering manual.  The manual is provided as a part of
  * a release.  For development sources please refer to the online
  * documentation at:
  *
  * https://docs.rtems.org
  */
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include <string.h>
 #include <bsp/irq-generic.h>
 #include <rtems/irq-extension.h>
 
 #include "tx-support.h"
 
 #include <rtems/test.h>
 
 /**
  * @defgroup RtemsIntrReqIsPending spec:/rtems/intr/req/is-pending
  *
  * @ingroup TestsuitesValidationIntr
  *
  * @{
  */
 
 typedef enum {
   RtemsIntrReqIsPending_Pre_Vector_Valid,
   RtemsIntrReqIsPending_Pre_Vector_Invalid,
   RtemsIntrReqIsPending_Pre_Vector_NA
 } RtemsIntrReqIsPending_Pre_Vector;
 
 typedef enum {
   RtemsIntrReqIsPending_Pre_Pending_Obj,
   RtemsIntrReqIsPending_Pre_Pending_Null,
   RtemsIntrReqIsPending_Pre_Pending_NA
 } RtemsIntrReqIsPending_Pre_Pending;
 
 typedef enum {
   RtemsIntrReqIsPending_Pre_IsPending_Yes,
   RtemsIntrReqIsPending_Pre_IsPending_No,
   RtemsIntrReqIsPending_Pre_IsPending_NA
 } RtemsIntrReqIsPending_Pre_IsPending;
 
 typedef enum {
   RtemsIntrReqIsPending_Post_Status_Ok,
   RtemsIntrReqIsPending_Post_Status_InvAddr,
   RtemsIntrReqIsPending_Post_Status_InvId,
   RtemsIntrReqIsPending_Post_Status_NA
 } RtemsIntrReqIsPending_Post_Status;
 
 typedef enum {
   RtemsIntrReqIsPending_Post_IsPending_Nop,
   RtemsIntrReqIsPending_Post_IsPending_Yes,
   RtemsIntrReqIsPending_Post_IsPending_No,
   RtemsIntrReqIsPending_Post_IsPending_NA
 } RtemsIntrReqIsPending_Post_IsPending;
 
 typedef struct {
   uint8_t Skip : 1;
   uint8_t Pre_Vector_NA : 1;
   uint8_t Pre_Pending_NA : 1;
   uint8_t Pre_IsPending_NA : 1;
   uint8_t Post_Status : 2;
   uint8_t Post_IsPending : 2;
 } RtemsIntrReqIsPending_Entry;
 
 /**
  * @brief Test context for spec:/rtems/intr/req/is-pending test case.
  */
 typedef struct {
   /**
    * @brief This member contains the count of serviced interrupts.
    */
   volatile uint32_t interrupt_count;
 
   /**
    * @brief If this member is true, then the interrupt shall be cleared.
    */
   bool do_clear;
 
   /**
    * @brief This member contains the current vector number.
    */
   rtems_vector_number vector;
 
   /**
    * @brief This member provides the ``bool`` object.
    */
   bool pending_obj;
 
   /**
    * @brief If this member is true, then the ``vector`` parameter shall be
    *   valid.
    */
   bool valid_vector;
 
   /**
    * @brief This member specifies if the ``pending`` parameter value.
    */
   bool *pending;
 
   /**
    * @brief This member contains the return value of the
    *   rtems_interrupt_is_pending() call.
    */
   rtems_status_code status;
 
   struct {
     /**
      * @brief This member defines the pre-condition indices for the next
      *   action.
      */
     size_t pci[ 3 ];
 
     /**
      * @brief This member defines the pre-condition states for the next action.
      */
     size_t pcs[ 3 ];
 
     /**
      * @brief If this member is true, then the test action loop is executed.
      */
     bool in_action_loop;
 
     /**
      * @brief This member contains the next transition map index.
      */
     size_t index;
 
     /**
      * @brief This member contains the current transition map entry.
      */
     RtemsIntrReqIsPending_Entry entry;
 
     /**
      * @brief If this member is true, then the current transition variant
      *   should be skipped.
      */
     bool skip;
   } Map;
 } RtemsIntrReqIsPending_Context;
 
 static RtemsIntrReqIsPending_Context
   RtemsIntrReqIsPending_Instance;
 
 static const char * const RtemsIntrReqIsPending_PreDesc_Vector[] = {
   "Valid",
   "Invalid",
   "NA"
 };
 
 static const char * const RtemsIntrReqIsPending_PreDesc_Pending[] = {
   "Obj",
   "Null",
   "NA"
 };
 
 static const char * const RtemsIntrReqIsPending_PreDesc_IsPending[] = {
   "Yes",
   "No",
   "NA"
 };
 
 static const char * const * const RtemsIntrReqIsPending_PreDesc[] = {
   RtemsIntrReqIsPending_PreDesc_Vector,
   RtemsIntrReqIsPending_PreDesc_Pending,
   RtemsIntrReqIsPending_PreDesc_IsPending,
   NULL
 };
 
 typedef RtemsIntrReqIsPending_Context Context;
 
 static bool IsEnabled( const Context *ctx )
 {
   rtems_status_code sc;
   bool              enabled;
 
   enabled = false;
   sc = rtems_interrupt_vector_is_enabled( ctx->vector, &enabled );
   T_rsc_success( sc );
 
   return enabled;
 }
 
 static bool IsPending( const Context *ctx )
 {
   rtems_status_code sc;
   bool              pending;
 
   pending = false;
   sc = rtems_interrupt_is_pending( ctx->vector, &pending );
   T_rsc_success( sc );
 
   return pending;
 }
 
 static void Disable( const Context *ctx )
 {
   rtems_status_code sc;
 
   sc = rtems_interrupt_vector_disable( ctx->vector );
   T_rsc_success( sc );
 }
 
 static void Raise( const Context *ctx )
 {
   rtems_status_code sc;
 
   sc = rtems_interrupt_raise( ctx->vector );
   T_rsc_success( sc );
 }
 
 static void EntryRoutine( void *arg )
 {
   Context *ctx;
   uint32_t count;
 
   (void) arg;
   ctx = T_fixture_context();
 
   count = ctx->interrupt_count;
   ctx->interrupt_count = count + 1;
 
   if ( ctx->do_clear ) {
     rtems_status_code sc;
 
     sc = rtems_interrupt_clear( ctx->vector );
     T_rsc_success( sc );
   }
 
   if ( count > 2 ) {
     /* Some interrupts are probably cased by a peripheral */
     Disable( ctx );
   }
 }
 
 static void CheckIsPending(
   Context                          *ctx,
   const rtems_interrupt_attributes *attr,
   bool                              has_installed_entries
 )
 {
   rtems_status_code sc;
 
   if ( has_installed_entries ) {
     /*
      * We cannot test this vector thoroughly, since it is used by a device
      * driver.  It may be pending or not.  For example in SMP configurations,
      * it may be pending while being serviced right now on another processor.
      */
     (void) IsPending( ctx );
   } else if ( !attr->is_maskable ) {
     /* We can only safely test maskable interrupts */
     T_false( IsPending( ctx ) );
   } else if ( IsPending( ctx ) ) {
     /*
      * If there is already an interrupt pending, then it is probably raised
      * by a peripheral which we cannot control.
      */
   } else if (
     attr->can_raise && attr->can_disable &&
     ( attr->can_clear || attr->cleared_by_acknowledge )
   ) {
     rtems_interrupt_entry entry;
     rtems_interrupt_level level;
 
     ctx->interrupt_count = 0;
     ctx->do_clear = attr->can_clear && !attr->cleared_by_acknowledge;
     rtems_interrupt_entry_initialize( &entry, EntryRoutine, ctx, "Info" );
     sc = rtems_interrupt_entry_install(
       ctx->vector,
       RTEMS_INTERRUPT_UNIQUE,
       &entry
     );
     T_rsc_success( sc );
 
     if ( !IsPending( ctx) && ( attr->can_enable || IsEnabled( ctx ) ) ) {
       Disable( ctx );
       Raise( ctx );
 
       /*
        * Some interrupt controllers will signal a pending interrupt if it is
        * disabled (for example ARM GIC), others will not signal a pending
        * interrupt if it is disabled (for example Freescale/NXP MPIC).
        */
       (void) IsPending( ctx );
 
       sc = rtems_interrupt_vector_enable( ctx->vector );
       T_rsc_success( sc );
 
       while ( ctx->interrupt_count < 1 ) {
         /* Wait */
       }
 
       rtems_interrupt_local_disable( level );
       Raise( ctx );
       T_true( IsPending( ctx ) );
       rtems_interrupt_local_enable( level );
 
       while ( ctx->interrupt_count < 2 ) {
         /* Wait */
       }
     }
 
     sc = rtems_interrupt_entry_remove( ctx->vector, &entry );
     T_rsc_success( sc );
   }
 }
 
 static void RtemsIntrReqIsPending_Pre_Vector_Prepare(
   RtemsIntrReqIsPending_Context   *ctx,
   RtemsIntrReqIsPending_Pre_Vector state
 )
 {
   switch ( state ) {
     case RtemsIntrReqIsPending_Pre_Vector_Valid: {
       /*
        * While the ``vector`` parameter is associated with an interrupt vector.
        */
       ctx->valid_vector = true;
       break;
     }
 
     case RtemsIntrReqIsPending_Pre_Vector_Invalid: {
       /*
        * While the ``vector`` parameter is not associated with an interrupt
        * vector.
        */
       ctx->valid_vector = false;
       break;
     }
 
     case RtemsIntrReqIsPending_Pre_Vector_NA:
       break;
   }
 }
 
 static void RtemsIntrReqIsPending_Pre_Pending_Prepare(
   RtemsIntrReqIsPending_Context    *ctx,
   RtemsIntrReqIsPending_Pre_Pending state
 )
 {
   switch ( state ) {
     case RtemsIntrReqIsPending_Pre_Pending_Obj: {
       /*
        * While the ``pending`` parameter references an object of type ``bool``.
        */
       ctx->pending = &ctx->pending_obj;
       break;
     }
 
     case RtemsIntrReqIsPending_Pre_Pending_Null: {
       /*
        * While the ``pending`` parameter is equal to NULL.
        */
       ctx->pending = NULL;
       break;
     }
 
     case RtemsIntrReqIsPending_Pre_Pending_NA:
       break;
   }
 }
 
 static void RtemsIntrReqIsPending_Pre_IsPending_Prepare(
   RtemsIntrReqIsPending_Context      *ctx,
   RtemsIntrReqIsPending_Pre_IsPending state
 )
 {
   switch ( state ) {
     case RtemsIntrReqIsPending_Pre_IsPending_Yes: {
       /*
        * While the interrupt associated with the interrupt vector specified by
        * ``vector`` was pending for the processor executing the
        * rtems_interrupt_is_pending() call at some time point during the call.
        */
       /* Validation is done by CheckIsPending() for each interrupt vector */
       break;
     }
 
     case RtemsIntrReqIsPending_Pre_IsPending_No: {
       /*
        * While the interrupt associated with the interrupt vector specified by
        * ``vector`` was not pending for the processor executing the
        * rtems_interrupt_is_pending() call at some time point during the call.
        */
       /* Validation is done by CheckIsPending() for each interrupt vector */
       break;
     }
 
     case RtemsIntrReqIsPending_Pre_IsPending_NA:
       break;
   }
 }
 
 static void RtemsIntrReqIsPending_Post_Status_Check(
   RtemsIntrReqIsPending_Context    *ctx,
   RtemsIntrReqIsPending_Post_Status state
 )
 {
   switch ( state ) {
     case RtemsIntrReqIsPending_Post_Status_Ok: {
       /*
        * The return status of rtems_interrupt_is_pending() shall be
        * RTEMS_SUCCESSFUL.
        */
       T_rsc_success( ctx->status );
       break;
     }
 
     case RtemsIntrReqIsPending_Post_Status_InvAddr: {
       /*
        * The return status of rtems_interrupt_is_pending() shall be
        * RTEMS_INVALID_ADDRESS.
        */
       T_rsc( ctx->status, RTEMS_INVALID_ADDRESS );
       break;
     }
 
     case RtemsIntrReqIsPending_Post_Status_InvId: {
       /*
        * The return status of rtems_interrupt_is_pending() shall be
        * RTEMS_INVALID_ID.
        */
       T_rsc( ctx->status, RTEMS_INVALID_ID );
       break;
     }
 
     case RtemsIntrReqIsPending_Post_Status_NA:
       break;
   }
 }
 
 static void RtemsIntrReqIsPending_Post_IsPending_Check(
   RtemsIntrReqIsPending_Context       *ctx,
   RtemsIntrReqIsPending_Post_IsPending state
 )
 {
   bool pending;
 
   switch ( state ) {
     case RtemsIntrReqIsPending_Post_IsPending_Nop: {
       /*
        * Objects referenced by the ``pending`` parameter in past calls to
        * rtems_interrupt_is_pending() shall not be accessed by the
        * rtems_interrupt_is_pending() call.
        */
       memset( &pending, 0xa5, sizeof( pending ) );
       T_eq_mem( &ctx->pending_obj, &pending, sizeof( pending ) );
       break;
     }
 
     case RtemsIntrReqIsPending_Post_IsPending_Yes: {
       /*
        * The value of the object referenced by the ``pending`` parameter shall
        * be set to true.
        */
       /* Validation is done by CheckIsPending() for each interrupt vector */
       break;
     }
 
     case RtemsIntrReqIsPending_Post_IsPending_No: {
       /*
        * The value of the object referenced by the ``pending`` parameter shall
        * be set to false.
        */
       /* Validation is done by CheckIsPending() for each interrupt vector */
       break;
     }
 
     case RtemsIntrReqIsPending_Post_IsPending_NA:
       break;
   }
 }
 
 static void RtemsIntrReqIsPending_Action( RtemsIntrReqIsPending_Context *ctx )
 {
   if ( ctx->valid_vector && ctx->pending != NULL ) {
     for (
       ctx->vector = 0;
       ctx->vector < BSP_INTERRUPT_VECTOR_COUNT;
       ++ctx->vector
     ) {
       rtems_status_code          sc;
       rtems_interrupt_attributes attr;
       bool                       has_installed_entries;
 
       memset( &attr, 0, sizeof( attr ) );
       sc = rtems_interrupt_get_attributes( ctx->vector, &attr );
 
       if ( sc == RTEMS_INVALID_ID ) {
         continue;
       }
 
       T_rsc_success( sc );
 
       has_installed_entries = HasInterruptVectorEntriesInstalled( ctx->vector );
       CheckIsPending( ctx, &attr, has_installed_entries );
     }
   } else {
     if ( ctx->valid_vector ) {
       ctx->vector = 0;
     } else {
       ctx->vector = BSP_INTERRUPT_VECTOR_COUNT;
     }
 
     memset( &ctx->pending_obj, 0xa5, sizeof( ctx->pending_obj ) );
 
     ctx->status = rtems_interrupt_is_pending( ctx->vector, ctx->pending );
   }
 }
 
 static const RtemsIntrReqIsPending_Entry
 RtemsIntrReqIsPending_Entries[] = {
   { 0, 0, 0, 0, RtemsIntrReqIsPending_Post_Status_InvAddr,
     RtemsIntrReqIsPending_Post_IsPending_Nop },
   { 0, 0, 0, 1, RtemsIntrReqIsPending_Post_Status_InvId,
     RtemsIntrReqIsPending_Post_IsPending_Nop },
   { 0, 0, 0, 1, RtemsIntrReqIsPending_Post_Status_InvAddr,
     RtemsIntrReqIsPending_Post_IsPending_Nop },
   { 0, 0, 0, 0, RtemsIntrReqIsPending_Post_Status_Ok,
     RtemsIntrReqIsPending_Post_IsPending_Yes },
   { 0, 0, 0, 0, RtemsIntrReqIsPending_Post_Status_Ok,
     RtemsIntrReqIsPending_Post_IsPending_No }
 };
 
 static const uint8_t
 RtemsIntrReqIsPending_Map[] = {
   3, 4, 0, 0, 1, 1, 2, 2
 };
 
 static size_t RtemsIntrReqIsPending_Scope( void *arg, char *buf, size_t n )
 {
   RtemsIntrReqIsPending_Context *ctx;
 
   ctx = arg;
 
   if ( ctx->Map.in_action_loop ) {
     return T_get_scope( RtemsIntrReqIsPending_PreDesc, buf, n, ctx->Map.pcs );
   }
 
   return 0;
 }
 
 static T_fixture RtemsIntrReqIsPending_Fixture = {
   .setup = NULL,
   .stop = NULL,
   .teardown = NULL,
   .scope = RtemsIntrReqIsPending_Scope,
   .initial_context = &RtemsIntrReqIsPending_Instance
 };
 
 static inline RtemsIntrReqIsPending_Entry RtemsIntrReqIsPending_PopEntry(
   RtemsIntrReqIsPending_Context *ctx
 )
 {
   size_t index;
 
   index = ctx->Map.index;
   ctx->Map.index = index + 1;
   return RtemsIntrReqIsPending_Entries[
     RtemsIntrReqIsPending_Map[ index ]
   ];
 }
 
 static void RtemsIntrReqIsPending_SetPreConditionStates(
   RtemsIntrReqIsPending_Context *ctx
 )
 {
   ctx->Map.pcs[ 0 ] = ctx->Map.pci[ 0 ];
   ctx->Map.pcs[ 1 ] = ctx->Map.pci[ 1 ];
 
   if ( ctx->Map.entry.Pre_IsPending_NA ) {
     ctx->Map.pcs[ 2 ] = RtemsIntrReqIsPending_Pre_IsPending_NA;
   } else {
     ctx->Map.pcs[ 2 ] = ctx->Map.pci[ 2 ];
   }
 }
 
 static void RtemsIntrReqIsPending_TestVariant(
   RtemsIntrReqIsPending_Context *ctx
 )
 {
   RtemsIntrReqIsPending_Pre_Vector_Prepare( ctx, ctx->Map.pcs[ 0 ] );
   RtemsIntrReqIsPending_Pre_Pending_Prepare( ctx, ctx->Map.pcs[ 1 ] );
   RtemsIntrReqIsPending_Pre_IsPending_Prepare( ctx, ctx->Map.pcs[ 2 ] );
   RtemsIntrReqIsPending_Action( ctx );
   RtemsIntrReqIsPending_Post_Status_Check( ctx, ctx->Map.entry.Post_Status );
   RtemsIntrReqIsPending_Post_IsPending_Check(
     ctx,
     ctx->Map.entry.Post_IsPending
   );
 }
 
 /**
  * @fn void T_case_body_RtemsIntrReqIsPending( void )
  */
 T_TEST_CASE_FIXTURE( RtemsIntrReqIsPending, &RtemsIntrReqIsPending_Fixture )
 {
   RtemsIntrReqIsPending_Context *ctx;
 
   ctx = T_fixture_context();
   ctx->Map.in_action_loop = true;
   ctx->Map.index = 0;
 
   for (
     ctx->Map.pci[ 0 ] = RtemsIntrReqIsPending_Pre_Vector_Valid;
     ctx->Map.pci[ 0 ] < RtemsIntrReqIsPending_Pre_Vector_NA;
     ++ctx->Map.pci[ 0 ]
   ) {
     for (
       ctx->Map.pci[ 1 ] = RtemsIntrReqIsPending_Pre_Pending_Obj;
       ctx->Map.pci[ 1 ] < RtemsIntrReqIsPending_Pre_Pending_NA;
       ++ctx->Map.pci[ 1 ]
     ) {
       for (
         ctx->Map.pci[ 2 ] = RtemsIntrReqIsPending_Pre_IsPending_Yes;
         ctx->Map.pci[ 2 ] < RtemsIntrReqIsPending_Pre_IsPending_NA;
         ++ctx->Map.pci[ 2 ]
       ) {
         ctx->Map.entry = RtemsIntrReqIsPending_PopEntry( ctx );
         RtemsIntrReqIsPending_SetPreConditionStates( ctx );
         RtemsIntrReqIsPending_TestVariant( ctx );
       }
     }
   }
 }
 
 /** @} */

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