--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cs/services/audio/audio_sr.c	Fri Oct 16 06:23:26 2020 +0000
@@ -0,0 +1,343 @@
+/****************************************************************************/
+/*                                                                          */
+/*  File Name:  audio_sr.c                                                  */
+/*                                                                          */
+/*  Purpose:  This file contains all the functions used in the different    */
+/*            speech reco task                                              */
+/*                                                                          */
+/*  Version   0.1                                                           */
+/*                                                                          */
+/*  Date        Modification                                                */
+/*  ------------------------------------                                    */
+/*  21 Nov. 2001 Create                                                     */
+/*                                                                          */
+/*  Author                                                                  */
+/*     Francois Mazard - Stephanie Gerthoux                                 */
+/*                                                                          */
+/* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved*/
+/****************************************************************************/
+
+#include "rv/rv_defined_swe.h"
+
+#ifdef RVM_AUDIO_MAIN_SWE
+  #ifndef _WINDOWS
+    #include "config/swconfig.cfg"
+    #include "config/sys.cfg"
+    #include "config/chipset.cfg"
+  #endif
+
+  #include "l1_confg.h"
+  #if (SPEECH_RECO)
+    #include "rv/rv_general.h"
+    #include "rvm/rvm_gen.h"
+    #include "audio/audio_features_i.h"
+    #include "audio/audio_ffs_i.h"
+    #include "audio/audio_api.h"
+    #include "audio/audio_structs_i.h"
+    #include "audio/audio_error_hdlr_i.h"
+    #include "audio/audio_var_i.h"
+    #include "audio/audio_messages_i.h"
+    #include "rvf/rvf_target.h"
+    #include "audio/audio_const_i.h"
+
+    #include "ffs/ffs_api.h"
+
+    #ifndef _WINDOWS
+      #include "l1_types.h"
+      #include "l1audio_cust.h"
+      #include "l1audio_msgty.h"
+      #include "l1audio_signa.h"
+      #include "audio/audio_macro_i.h"
+    #else
+      #include "tests/rv/rv_test_filter.h"
+      #if ((AUDIO_REGR == SW_COMPILED) || (AUDIO_MISC == SW_COMPILED))
+        /* include the usefull L1 header */
+        #define BOOL_FLAG
+        #define CHAR_FLAG
+        #include "l1_types.h"
+        #include "l1audio_const.h"
+        #include "l1audio_cust.h"
+        #include "l1audio_defty.h"
+        #include "l1audio_msgty.h"
+        #include "l1audio_signa.h"
+        #include "l1_const.h"
+        #include "l1_defty.h"
+        #include "l1_msgty.h"
+        #include "l1_signa.h"
+        #include "l1_varex.h"
+        #include "audio/tests/audio_test.h"
+      #endif
+    #endif
+
+#include <string.h>
+
+  #ifndef _WINDOWS
+    /**************************************/
+    /* External prototypes                */
+    /**************************************/
+    extern void srback_CTO_algorithm       (volatile UWORD16 *RAM_address);
+    extern void srback_save_model_temp     (volatile UWORD16 *RAM_address_input, UWORD16 *RAM_address_output);
+    extern void Cust_srback_save_model     (UWORD8 database, UWORD8 index, volatile UWORD16 *RAM_address);
+    extern void Cust_srback_save_speech    (UWORD8 database, UWORD8 index, UWORD16 *start_buffer, UWORD16 *stop_buffer, UWORD16 *start_speech, UWORD16 *stop_speech);
+    extern void Cust_srback_load_model     (UWORD8 database, UWORD8 index, volatile UWORD16 *RAM_address);
+
+  #endif
+
+    /********************************************************************************/
+    /*                                                                              */
+    /*    Function Name:   audio_sr_create_vocabulary_database                      */
+    /*                                                                              */
+    /*    Purpose:  Create the l1st of the model included in the specified database */
+    /*                                                                              */
+    /*    Input Parameters:                                                         */
+    /*        directory of the vocabulary database                                  */
+    /*                                                                              */
+    /*    Output Parameters:                                                        */
+    /*        pointer to the list of the model name                                 */
+    /*        number of the model in the database                                   */
+    /*                                                                              */
+    /*    Note:                                                                     */
+    /*        None.                                                                 */
+    /*                                                                              */
+    /*    Revision History:                                                         */
+    /*        None.                                                                 */
+    /*                                                                              */
+    /********************************************************************************/
+    INT8 audio_sr_create_vocabulary_database(char* directory, void** pp_database)
+    {
+      #ifndef _WINDOWS
+        T_FFS_DIR       ffs_dir;
+        T_FFS_SIZE      size, number_of_object;
+        T_FFS_STAT      stat;
+        INT8            number_of_model=0, i, j, name_size;
+        char            name[AUDIO_PATH_NAME_MAX_SIZE], full_name[AUDIO_PATH_NAME_MAX_SIZE],*p_model_name, *ptr;
+        T_RVF_MB_STATUS mb_status;
+
+        /* open the path */
+        number_of_object = ffs_opendir(directory, &ffs_dir);
+        if (number_of_object <= 0)
+        {
+          return(AUDIO_ERROR);
+        }
+
+        /* allocate the buffer for the vocabulary database */
+        mb_status = rvf_get_buf (p_audio_gbl_var->mb_audio_ffs,
+                                 (AUDIO_SR_MAX_VOCABULARY_NAME * AUDIO_PATH_NAME_MAX_SIZE),
+                                 (T_RVF_BUFFER **) (pp_database));
+
+        /* If insufficient resources, then report a memory error and abort.               */
+        if (mb_status == RVF_RED)
+        {
+          audio_sr_error_trace(AUDIO_ENTITY_NO_MEMORY);
+          return (AUDIO_ERROR);
+        }
+        /* set the pointer used to write the table of model name */
+        p_model_name = *pp_database;
+
+        /* scan the directory and save the name of the model if it exists */
+        size = 1;
+        while (size > 0)
+        {
+          size = ffs_readdir(&ffs_dir, name,
+            AUDIO_PATH_NAME_MAX_SIZE);
+          if (size > 0)
+          {
+            /* look for the type of the object */
+            /* Note the ffs_stat function needs the full path naem */
+            /* therefor the directory needs to be added to the name from the ffs_readdir function */
+            strcpy(full_name, directory);
+            strcat(full_name,"/");
+            strcat(full_name, name);
+            if (ffs_stat(full_name, &stat) != EFFS_OK)
+            {
+              /* deallocate the memory */
+              rvf_free_buf((T_RVF_BUFFER *)(*pp_database));
+
+              return(AUDIO_ERROR);
+            }
+            else
+            {
+              if ((stat.type == OT_FILE) &&
+                  (stat.size != 0) )
+              /* the object is a file with data */
+              {
+                /* check if the name contains _sr at the end */
+                name_size = strlen(name);
+                ptr = name;
+                ptr += (name_size - 3);
+
+                if ( strcmp(ptr, "_sr") == 0 )
+                {
+                  /* increase the number of model */
+                  number_of_model++;
+                  /* Check if the number of vocabulary isn't too high */
+                  if (number_of_model > AUDIO_SR_MAX_VOCABULARY_NAME)
+                  {
+                    /* deallocate the memory */
+                    rvf_free_buf((T_RVF_BUFFER *)(*pp_database));
+                    return(AUDIO_ERROR);
+                  }
+                  /* save the model name */
+                  strcpy(p_model_name, full_name);
+                  /* Increase the model name pointer */
+                  p_model_name += AUDIO_PATH_NAME_MAX_SIZE;
+                } /* strcmp(ptr, "_sr") == 0 */
+              } /* stat.type == OT_FILE */
+            } /* fs_stat(full_name, &stat) == EFFS_OK */
+          } /* if (size>0) */
+        } /* while (size>0) */
+
+        return (number_of_model);
+      #else
+        #if ((AUDIO_REGR == SW_COMPILED) || (AUDIO_MISC == SW_COMPILED))
+          T_RVF_MB_STATUS mb_status;
+
+          /* allocate the buffer for the vocabulary database */
+          mb_status = rvf_get_buf (p_audio_gbl_var->mb_audio_ffs,
+                                  (AUDIO_SR_MAX_VOCABULARY_NAME * AUDIO_PATH_NAME_MAX_SIZE),
+                                  (T_RVF_BUFFER **) (pp_database));
+          /* If insufficient resources, then report a memory error and abort.               */
+          if (mb_status == RVF_RED)
+          {
+            audio_sr_error_trace(AUDIO_ENTITY_NO_MEMORY);
+            return (AUDIO_ERROR);
+          }
+
+          if (p_audio_test->vocabuary_size <= 0)
+          {
+           /* deallocate the memory */
+           rvf_free_buf((T_RVF_BUFFER *)(*pp_database));
+           return (AUDIO_ERROR);
+          }
+          else
+          {
+          return (p_audio_test->vocabuary_size);
+          }
+        #endif
+      #endif
+    }
+
+    #ifndef _WINDOWS
+      /********************************************************************************/
+      /*                                                                              */
+      /*    Function Name:   audio_sr_background_manager                              */
+      /*                                                                              */
+      /*    Purpose:  Execute the background task requested by the L1                 */
+      /*                                                                              */
+      /*    Input Parameters:                                                         */
+      /*        message fomr the L1                                                   */
+      /*                                                                              */
+      /*    Output Parameters:                                                        */
+      /*                                                                              */
+      /*    Note:                                                                     */
+      /*        None.                                                                 */
+      /*                                                                              */
+      /*    Revision History:                                                         */
+      /*        None.                                                                 */
+      /*                                                                              */
+      /********************************************************************************/
+      void audio_sr_background_manager(T_RV_HDR *p_message)
+      {
+        UINT16  confirm_message_id;
+        void    *p_confirm_message;
+        UINT8   index;
+
+        switch (p_message->msg_id)
+        {
+          case L1_SRBACK_SAVE_DATA_REQ:
+          {
+            AUDIO_SEND_TRACE("AUDIO SR BACKGROUND: Save model", RV_TRACE_LEVEL_DEBUG_LOW);
+
+            // Call the customer function to save the model
+            Cust_srback_save_model( ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->database_id,
+                                    ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->model_index,
+                                    ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->model_RAM_address );
+
+            if ( ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->speech)
+            {
+              AUDIO_SEND_TRACE("AUDIO SR BACKGROUND: Save speech", RV_TRACE_LEVEL_DEBUG_LOW);
+
+              // Call the customer function to save the speech from a circular buffer to the database
+              Cust_srback_save_speech( ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->database_id,
+                                       ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->model_index,
+                                       ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->start_buffer,
+                                       ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->stop_buffer,
+                                       ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->start_address,
+                                       ((T_L1_SRBACK_SAVE_DATA_REQ *)(p_message))->stop_address);
+            }
+
+            /* set the confirm message identifier */
+            confirm_message_id = L1_SRBACK_SAVE_DATA_CON;
+
+            break;
+          } // L1_SRBACK_SAVE_DATA_REQ
+
+          case L1_SRBACK_LOAD_MODEL_REQ:
+          {
+            if ( ( ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->CTO_enable ) == FALSE )
+            {
+              AUDIO_SEND_TRACE_PARAM("AUDIO SR BACKGROUND: load model without CTO",
+                ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->model_index,
+                RV_TRACE_LEVEL_DEBUG_LOW);
+
+              // Call the function to load a model
+              Cust_srback_load_model( ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->database_id,
+                                      ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->model_index,
+                                      ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->model_RAM_address );
+            }
+            else
+            {
+              // Calculate the good index
+              index = ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->model_index>>1;
+
+              AUDIO_SEND_TRACE_PARAM("AUDIO SR BACKGROUND: load model with CTO",
+                index,
+                RV_TRACE_LEVEL_DEBUG_LOW);
+
+              // Call the function to load a model with the good index
+              Cust_srback_load_model( ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->database_id,
+                                      index,
+                                      ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->model_RAM_address );
+
+              // The CTO algorithm is used and the model index is odd
+              if ( ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->model_index & 0x01 )
+              {
+                // Call the function to apply the CTO algorithm to the loaded model
+                srback_CTO_algorithm( ((T_L1_SRBACK_LOAD_MODEL_REQ *)(p_message))->model_RAM_address );
+              }
+            }
+
+            /* set the confirm message identifier */
+            confirm_message_id = L1_SRBACK_LOAD_MODEL_CON;
+
+            break;
+          } // L1_SRBACK_LOAD_MODEL_REQ
+
+          case L1_SRBACK_TEMP_SAVE_DATA_REQ:
+          {
+              AUDIO_SEND_TRACE("AUDIO SR BACKGROUND: save model in temporary buffer",
+                RV_TRACE_LEVEL_DEBUG_LOW);
+
+            // Call the function to save the model in a temporary buffer
+            srback_save_model_temp( ((T_L1_SRBACK_TEMP_SAVE_DATA_REQ *)(p_message))->model_RAM_address_input,
+                                    ((T_L1_SRBACK_TEMP_SAVE_DATA_REQ *)(p_message))->model_RAM_address_output );
+
+            /* set the confirm message identifier */
+            confirm_message_id = L1_SRBACK_TEMP_SAVE_DATA_CON;
+
+            break;
+          }
+        } /* switch */
+
+        /* send the confirmation message */
+        /* allocate the buffer for the message to the L1 */
+        p_confirm_message = audio_allocate_l1_message(0);
+        if (p_confirm_message != NULL)
+        {
+          /* send the start command to the audio L1 */
+          audio_send_l1_message(confirm_message_id, p_confirm_message);
+        }
+      } /* audio_sr_background_manager */
+    #endif /* _WINDOWS */
+  #endif /* SPEECH_RECO */
+#endif /* RVM_AUDIO_MAIN_SWE */
\ No newline at end of file