--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cs/services/dar/dar_task.c	Fri May 15 01:28:16 2020 +0000
@@ -0,0 +1,278 @@
+/****************************************************************************/
+/*                                                                          */
+/*  File Name:  dar_task.c                                                  */
+/*                                                                          */
+/*  Purpose:   This function is the main function. It contains the dar_core */
+/*             which waits for messages or function calls.                  */
+/*                                                                          */
+/*                                                                          */
+/*  Version   0.1                                                           */
+/*                                                                          */
+/*  Date                 Modification                                       */
+/*  ------------------------------------                                    */
+/*  16 October 2001    Create                                               */
+/*                                                                          */
+/*  Author     Stephanie Gerthoux                                           */
+/*                                                                          */
+/* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved*/
+/****************************************************************************/
+
+#include "rv/rv_defined_swe.h"
+#ifdef RVM_DAR_SWE
+   #ifndef _WINDOWS
+      #include "config/swconfig.cfg"
+      #include "config/sys.cfg"
+      #include "config/chipset.cfg"
+   #endif
+
+   #include <string.h>
+   #include "rvm/rvm_gen.h"
+   #include "rvm/rvm_use_id_list.h"
+   #include "dar/dar_api.h"
+   #include "dar/dar_macro_i.h"
+   #include "dar/dar_handle_message.h"
+   #include "dar/dar_structs_i.h"
+   #include "dar/dar_error_hdlr_i.h"
+   #include "dar/dar_const_i.h"  
+
+   #include "ffs/ffs_api.h"
+  
+   /* Variables definitions */
+   T_DAR_RECOVERY_STATUS status=0;
+
+   /**** Global variables ****/
+   /* Define a pointer to the Global Environment Control block  */
+   extern T_DAR_ENV_CTRL_BLK *dar_gbl_var_p;
+
+   /* Write buffer*/
+   extern char dar_write_buffer[DAR_MAX_BUFFER_SIZE];
+
+   /* index used in the circular buffer*/
+   extern UINT16 dar_current_index;
+
+   /* DAR previous status : to get the status of the last exception */
+   extern UINT8  dar_previous_exception;
+
+   /* Ram buffer that contains the Debug Unit register */
+   extern UINT32  debug_RAM[DEBUG_UNIT_WORD_SIZE];
+
+   /* X_dump buffer defined in the command file */
+   /* This buffer contains the general register, the PC, the CPSR....*/
+   #ifndef _WINDOWS
+      extern INT32 xdump_buffer;
+   #endif
+
+
+   /********************************************************************************/
+   /* Function         dar_core                                                    */
+   /*                                                                              */
+   /* Description      Core of the dar task, which scans the dar mailbox and       */
+   /*                  waits for messages. When a message arrives, it sends it to  */
+   /*                  proper functions                                            */
+   /*                                                                              */
+   /*                                                                              */
+   /********************************************************************************/
+
+   T_RV_RET dar_core(void)
+   {
+      /* Declare local variables */
+      /**** Structs ****/
+      /* File descriptor type */
+      T_FFS_FD  ffs_fd;
+    
+      /* Variables */
+      T_RV_RET     error_status = RV_OK;
+      T_RV_HDR     *msg_p = NULL;
+      UINT16       received_event = 0x0000;
+      char         dar_ffs[20];
+      char         dar_dir_ffs[20];
+      char         dar_subdir_ffs[20];
+      BOOL         dar_ffs_error = FALSE;
+
+      #ifndef _WINDOWS
+         /* Define the Link register and the CPSR */
+         INT32 *link_register_p = &(xdump_buffer) + 14;
+         INT32 *dar_spsr_p      = &(xdump_buffer) + 16;
+         UINT16      i;      
+      #endif
+
+      /* Dar_ffs file name */ 
+      strcpy(dar_dir_ffs,"/var");
+      strcpy(dar_subdir_ffs,"/var/dbg");
+
+      #ifndef _WINDOWS
+         strcpy(dar_ffs,"/var/dbg/dar");
+      #else
+         strcpy(dar_ffs,"\var\dbg\dar");
+      #endif
+
+      DAR_SEND_TRACE("DAR_TASK started",RV_TRACE_LEVEL_DEBUG_HIGH);
+
+      /*---------------------------------*/
+      /*               FFS               */
+      /*---------------------------------*/
+
+      /**** create the dar ffs directories ****/
+	  if ((ffs_mkdir(dar_dir_ffs) != EFFS_OK) && (ffs_mkdir(dar_dir_ffs) != EFFS_EXISTS))
+	  {
+         DAR_SEND_TRACE("DAR entity can't create the '/var' folder into the flash",RV_TRACE_LEVEL_ERROR);
+	  }
+
+  	  if ((ffs_mkdir(dar_subdir_ffs) != EFFS_OK) && (ffs_mkdir(dar_subdir_ffs) != EFFS_EXISTS))
+	  {
+         DAR_SEND_TRACE("DAR entity can't create the '/var/dbg' folder into the flash",RV_TRACE_LEVEL_ERROR);
+	  }
+
+
+      /**** create the ffs file ****/
+      ffs_fd = ffs_open(dar_ffs, FFS_O_CREATE | FFS_O_WRONLY | FFS_O_TRUNC | FFS_O_APPEND);
+
+      if (ffs_fd < 0)
+      {
+         DAR_SEND_TRACE("DAR entity has received wrong file name or the flash is not formatted",RV_TRACE_LEVEL_WARNING);
+         dar_ffs_error = TRUE;
+      }
+    
+      #ifndef _WINDOWS
+
+         /**** Save the RAM buffer into the FFS ****/
+         /* save the buffer in 2 parts in order to have the information in chronological order */
+         /* save the oldest information : from dar_current_index to the end of the buffer*/
+         if ((ffs_write (ffs_fd,
+                         (void *)(&dar_write_buffer + dar_current_index),
+                         (DAR_MAX_BUFFER_SIZE - dar_current_index))) < 0 & (dar_ffs_error == FALSE))
+         {
+            DAR_SEND_TRACE("DAR entity can't saved the file in flash",RV_TRACE_LEVEL_WARNING);
+         }
+
+         /* save the rest of information: from the beginning of the buffer to dar_current_index */
+         if ((ffs_write (ffs_fd,
+                         (void *)(&dar_write_buffer),
+                         (dar_current_index))) < 0 & (dar_ffs_error == FALSE))
+         {
+            DAR_SEND_TRACE("DAR entity can't saved the file in flash",RV_TRACE_LEVEL_WARNING);
+         }
+
+         /* Erase the dar_write_buffer */
+         for (i=0;i<DAR_MAX_BUFFER_SIZE; i++)
+         {
+            dar_write_buffer[i] = 0;
+         }
+
+         /**** Save the X_dump_buffer into the Flash. ****/
+         /* This buffer is defined in the command file */
+         /* And the size of this buffer is defined in the gsm_cs_amd4_lj3_test.cmd */
+         /* its size is 38*32 bits = 38*4 bytes = 152 bytes */
+         if ((ffs_write (ffs_fd,
+                         (void *)(&xdump_buffer),
+                         (DAR_X_DUMP_BUFFER_SIZE))) < 0 & (dar_ffs_error == FALSE))
+         {
+            DAR_SEND_TRACE("DAR entity can't saved the X_dump_buffer in flash",RV_TRACE_LEVEL_WARNING);
+         }
+
+         /**** Save the Debug Unit Register into the Flash if necessary (Abort or prefetch)****/
+         /* A Prefetch abort exception or a data abort exception is generated */
+         #if ((CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 10) || (CHIPSET == 11))
+            if ((dar_previous_exception == DAR_EXCEPTION_PREFETCH_ABORT) ||
+                (dar_previous_exception == DAR_EXCEPTION_DATA_ABORT))
+            {
+               /* Save the Debug Unit into the Flash */
+               if ((ffs_write (ffs_fd,
+                              (void *) &debug_RAM,
+                              (4*DEBUG_UNIT_WORD_SIZE))) < 0 & (dar_ffs_error == FALSE))
+               {
+                  DAR_SEND_TRACE("DAR entity can't saved the DEBUG UNIT in flash",RV_TRACE_LEVEL_WARNING);
+               }
+            }
+         #endif
+         
+      #else
+         /* save the buffer in 2 parts in order to have the information in chronological order */
+         /* save the oldest information : from dar_current_index to the end of the buffer*/
+         if ((ffs_write (ffs_fd,
+                         (&dar_write_buffer + dar_current_index),
+                         (DAR_MAX_BUFFER_SIZE - dar_current_index))) != EFFS_OK)
+         {
+            DAR_SEND_TRACE("DAR entity can't saved the file in flash",RV_TRACE_LEVEL_WARNING);
+         }
+         /* save the rest of information: from the beginning of the buffer to dar_current_index */
+         if ((ffs_write (ffs_fd,
+                         (&dar_write_buffer),
+                         (dar_current_index))) != EFFS_OK)
+         {
+            DAR_SEND_TRACE("DAR entity can't saved the file in flash",RV_TRACE_LEVEL_WARNING);
+         }
+         /* The X_dump_buffer  and the Debug Unit can't be saved on the PC */
+      #endif
+
+      /* Close the ffs file*/
+      #ifndef _WINDOWS
+         if ( ffs_close(ffs_fd) != EFFS_OK & (dar_ffs_error == FALSE))
+         {
+            DAR_SEND_TRACE("DAR entity has not closed the file",RV_TRACE_LEVEL_WARNING);
+         }
+      #else
+         if ( ffs_close(ffs_fd) != EFFS_OK )
+         {
+            dar_error_trace(DAR_ENTITY_FILE_NO_CLOSE);
+         }
+      #endif
+
+      #ifndef _WINDOWS
+         /**** Save the LR and the SPSR when an exception has occured ****/
+         if ((dar_previous_exception == DAR_EXCEPTION_PREFETCH_ABORT)||
+             (dar_previous_exception == DAR_EXCEPTION_DATA_ABORT)    ||
+             (dar_previous_exception == DAR_EXCEPTION_UNDEFINED)     ||
+             (dar_previous_exception == DAR_EXCEPTION_SWI)           ||
+             (dar_previous_exception == DAR_EXCEPTION_RESERVED))
+         {
+            /* Displays the Link register saved on exception  */
+            DAR_SEND_TRACE_PARAM("Link register = ", *link_register_p,RV_TRACE_LEVEL_DEBUG_HIGH);
+
+            /* Displays the User mode CPSR saved on exception */
+            DAR_SEND_TRACE_PARAM("User mode SPSR before the exception=", *dar_spsr_p,RV_TRACE_LEVEL_DEBUG_HIGH); 
+         }
+
+         /* Displays the status of the last reset of the system */
+         dar_recovery_get_status(&status);
+      #endif
+
+      /* ------------------------------------------- */
+      /* loop to process messages                    */
+      /* ------------------------------------------- */
+      while (error_status == RV_OK)
+      {
+         /* Wait for all events. */
+         received_event = rvf_wait(DAR_ALL_EVENT_FLAGS, DAR_NOT_TIME_OUT);
+  
+         if (received_event & DAR_TASK_MBOX_EVT_MASK)
+         {
+            /* Read the message in the Dar mailbox and handle it. */
+            msg_p = (T_RV_HDR *) rvf_read_mbox(DAR_MBOX);			
+            error_status = dar_handle_msg(msg_p);
+         }
+      }
+  
+      /* If one of the occured events is unexpected (due to an unassigned  */
+      /* mailbox), then report an internal error.                          */
+      if (received_event & ~(DAR_TASK_MBOX_EVT_MASK )) 
+      {
+         DAR_SEND_TRACE(" DAR ERROR (env). One of the occured events is unexpected ",
+                         RV_TRACE_LEVEL_ERROR);
+
+         error_status = RV_NOT_SUPPORTED;
+      }
+
+      /* If a memory error happened .. */
+      if (error_status ==  RV_MEMORY_ERR)
+      {
+         dar_gbl_var_p->callBackFctError("DAR",
+                                         RVM_MEMORY_ERR,
+                                         0,
+                                         " Memory Error : the DAR primitive memory bank is RED ");
+      }
+
+       return RV_OK;
+   } /* dar_core */
+
+#endif /* #ifdef RVM_DAR_SWE */