add SMP, Modules, and more processor/tools releases

1 files changed, 197 insertions, 0 deletions

diff --git a/common_modules/module_manager/src/txm_module_manager_unload.c b/common_modules/module_manager/src/txm_module_manager_unload.c
new file mode 100644
index 00000000..3689afd4
--- /dev/null
+++ b/common_modules/module_manager/src/txm_module_manager_unload.c
@@ -0,0 +1,197 @@
+/**************************************************************************/
+/*                                                                        */
+/*       Copyright (c) Microsoft Corporation. All rights reserved.        */
+/*                                                                        */
+/*       This software is licensed under the Microsoft Software License   */
+/*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
+/*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
+/*       and in the root directory of this software.                      */
+/*                                                                        */
+/**************************************************************************/
+
+
+/**************************************************************************/ 
+/**************************************************************************/ 
+/**                                                                       */ 
+/** ThreadX Component                                                     */ 
+/**                                                                       */ 
+/**   Module Manager                                                      */ 
+/**                                                                       */ 
+/**************************************************************************/ 
+/**************************************************************************/ 
+
+#define TX_SOURCE_CODE
+
+#include "tx_api.h"
+#include "tx_byte_pool.h"
+#include "tx_initialize.h"
+#include "tx_mutex.h"
+#include "tx_thread.h"
+#include "txm_module.h"
+
+
+/**************************************************************************/ 
+/*                                                                        */ 
+/*  FUNCTION                                               RELEASE        */ 
+/*                                                                        */ 
+/*    _txm_module_manager_unload                          PORTABLE C      */ 
+/*                                                           6.0.1        */
+/*  AUTHOR                                                                */
+/*                                                                        */
+/*    Scott Larson, Microsoft Corporation                                 */
+/*                                                                        */
+/*  DESCRIPTION                                                           */ 
+/*                                                                        */ 
+/*    This function unloads a previously loaded module.                   */ 
+/*                                                                        */ 
+/*  INPUT                                                                 */ 
+/*                                                                        */ 
+/*    module_instance                   Module instance pointer           */ 
+/*                                                                        */ 
+/*  OUTPUT                                                                */ 
+/*                                                                        */ 
+/*    status                            Completion status                 */ 
+/*                                                                        */ 
+/*  CALLS                                                                 */ 
+/*                                                                        */ 
+/*    _tx_byte_release                      Release data area             */ 
+/*    _tx_mutex_get                         Get protection mutex          */ 
+/*    _tx_mutex_put                         Release protection mutex      */ 
+/*                                                                        */ 
+/*  CALLED BY                                                             */ 
+/*                                                                        */ 
+/*    Application code                                                    */ 
+/*                                                                        */ 
+/*  RELEASE HISTORY                                                       */ 
+/*                                                                        */ 
+/*    DATE              NAME                      DESCRIPTION             */
+/*                                                                        */
+/*  06-30-2020     Scott Larson             Initial Version 6.0.1         */
+/*                                                                        */
+/**************************************************************************/
+UINT  _txm_module_manager_unload(TXM_MODULE_INSTANCE *module_instance)
+{
+
+TX_INTERRUPT_SAVE_AREA
+    
+TXM_MODULE_INSTANCE *next_module, *previous_module;
+CHAR                *memory_ptr;
+
+
+    /* Check for interrupt call.  */
+    if (TX_THREAD_GET_SYSTEM_STATE() != 0)
+    {
+    
+        /* Now, make sure the call is from an interrupt and not initialization.  */
+        if (TX_THREAD_GET_SYSTEM_STATE() < TX_INITIALIZE_IN_PROGRESS)
+        {
+        
+            /* Invalid caller of this function, return appropriate error code.  */
+            return(TX_CALLER_ERROR);
+        }
+    }
+
+    /* Determine if the module manager has not been initialized yet.  */
+    if (_txm_module_manager_ready != TX_TRUE)
+    {
+    
+        /* Module manager has not been initialized.  */
+        return(TX_NOT_AVAILABLE); 
+    }
+
+    /* Determine if the module is valid.  */
+    if (module_instance == TX_NULL)
+    {
+    
+        /* Invalid module pointer.  */
+        return(TX_PTR_ERROR);
+    }
+
+    /* Get module manager protection mutex.  */
+    _tx_mutex_get(&_txm_module_manager_mutex, TX_WAIT_FOREVER);
+
+    /* Determine if the module is already valid.  */
+    if (module_instance -> txm_module_instance_id != TXM_MODULE_ID)
+    {
+
+        /* Release the protection mutex.  */
+        _tx_mutex_put(&_txm_module_manager_mutex);
+
+        /* Invalid module pointer.  */
+        return(TX_PTR_ERROR);
+    }
+
+    /* Determine if the module instance is in the  state.  */
+    if ((module_instance -> txm_module_instance_state != TXM_MODULE_LOADED) && (module_instance -> txm_module_instance_state != TXM_MODULE_STOPPED))
+    {
+    
+        /* Release the protection mutex.  */
+        _tx_mutex_put(&_txm_module_manager_mutex);
+
+        /* Return error if the module is not ready.  */
+        return(TX_NOT_DONE);
+    }
+
+    /* Pickup the module data memory allocation address.  */
+    memory_ptr =  module_instance -> txm_module_instance_data_allocation_ptr;
+
+    /* Release the module's data memory.  */
+    _tx_byte_release(memory_ptr);
+
+    /* Determine if there was memory allocated for the code.  */
+    if (module_instance -> txm_module_instance_code_allocation_ptr)
+    {
+     
+        /* Yes, release the module's code memory.  */
+        memory_ptr =  module_instance -> txm_module_instance_code_allocation_ptr;
+
+        /* Release the module's data memory.  */
+        _tx_byte_release(memory_ptr);
+    }
+    
+    /* Temporarily disable interrupts.  */
+    TX_DISABLE
+
+    /* Clear some of the module information.  */
+    module_instance -> txm_module_instance_id =     0;
+    module_instance -> txm_module_instance_state =  TXM_MODULE_UNLOADED;
+
+    /* Call port-specific unload function.  */
+    TXM_MODULE_MANAGER_MODULE_UNLOAD(module_instance);
+    
+    /* Remove the module from the linked list of loaded modules.  */
+
+    /* See if the module is the only one on the list.  */
+    if ((--_txm_module_manger_loaded_count) == 0)
+    {
+
+        /* Only created module, just set the created list to NULL.  */
+        _txm_module_manager_loaded_list_ptr =  TX_NULL;
+    }
+    else
+    {
+
+        /* Otherwise, not the only created module, link-up the neighbors.  */
+        next_module =                                module_instance -> txm_module_instance_loaded_next;
+        previous_module =                            module_instance -> txm_module_instance_loaded_previous;
+        next_module -> txm_module_instance_loaded_previous =  previous_module;
+        previous_module -> txm_module_instance_loaded_next =  next_module;
+
+        /* See if we have to update the created list head pointer.  */
+        if (_txm_module_manager_loaded_list_ptr == module_instance)
+        {
+                        
+            /* Yes, move the head pointer to the next link. */
+            _txm_module_manager_loaded_list_ptr =  next_module; 
+        }
+    }
+
+    /* Restore interrupts.  */
+    TX_RESTORE
+
+    /* Release the protection mutex.  */
+    _tx_mutex_put(&_txm_module_manager_mutex);
+
+    /* Return success.  */
+    return(TX_SUCCESS);
+}