--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gsm-fw/g23m-aci/aci/hl_audio_drv.c	Sun Oct 12 01:45:14 2014 +0000
@@ -0,0 +1,271 @@
+/*
++-----------------------------------------------------------------------------
+|  Project :  GSM-PS (6147)
+|  Modul   :  AOC
++-----------------------------------------------------------------------------
+|  Copyright 2002 Texas Instruments Berlin, AG
+|                 All rights reserved.
+|
+|                 This file is confidential and a trade secret of Texas
+|                 Instruments Berlin, AG
+|                 The receipt of or possession of this file does not convey
+|                 any rights to reproduce or disclose its contents or to
+|                 manufacture, use, or sell anything it may describe, in
+|                 whole, or in part, without the specific written consent of
+|                 Texas Instruments Berlin, AG.
++-----------------------------------------------------------------------------
+|  Purpose :  This module defines the functions for the high level audio 
+              driver interface.
++-----------------------------------------------------------------------------
+*/
+
+
+#ifndef HL_AUDIO_DRV_C
+#define HL_AUDIO_DRV_C
+#endif
+
+#include "aci_all.h"
+#include "aci_cmh.h"
+#include "aci.h"
+#include "psa.h"
+#include "hl_audio_drv.h"
+
+#ifdef VOCODER_FUNC_INTERFACE
+#include "l4_tim.h"
+#endif
+
+
+
+/* ===============GLOBAL VARIABLES====================*/
+
+LOCAL  T_HL_VOCODER_STATE currVocoderState;
+#ifdef VOCODER_FUNC_INTERFACE
+GLOBAL T_HL_VOCODER_ACTION currVocoderAction;
+#endif
+
+/* This flag helps enable the vocoder interface testing for
+   specific tescases 
+*/
+#ifdef _SIMULATION_
+BOOL vocoder_tst_flag; 
+#endif
+
+
+/* =============FUNCTION DEFINITIONS FOR L1===========*/
+#ifndef _SIMULATION_
+#ifdef VOCODER_FUNC_INTERFACE
+void vocoder_mute_dl( BOOL mute );
+void vocoder_mute_ul( BOOL mute );
+void enable_tch_vocoder (BOOL vocoder_on);
+#endif /* VOCODER_FUNC_INTERFACE */
+#endif /* _SIMULATION_ */
+
+
+/*================= FUNCTIONS ========================*/
+
+/*
++-------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)         MODULE  : HL_AUDIO_DRV            |
+|                                 ROUTINE : hl_audio_drv_init       |
++-------------------------------------------------------------------+
+
+  PURPOSE : This function is called to initialise the variables in 
+            the High Level Audio driver
+*/
+GLOBAL void hl_audio_drv_init (void)
+{
+  TRACE_FUNCTION("hl_audio_drv_init()");
+
+  currVocoderState = HL_VOCODER_DISABLED;
+#ifdef VOCODER_FUNC_INTERFACE
+  currVocoderAction= VOCODER_IDLE;
+#endif
+#ifdef _SIMULATION_
+  vocoder_tst_flag = FALSE;
+#endif
+
+}
+
+/*
++-------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)         MODULE  : PSA_CCF                 |
+|                                 ROUTINE : hl_drv_set_vocoder_state|
++-------------------------------------------------------------------+
+
+  PURPOSE : This function will enable/disable vocoder OR put the 
+            vocoder state to PENDING_ENABLE/DISABLE depending on the 
+            vocoder states. Depending on the vocoder state and if 
+            requires timer will be started. Timer implementation is 
+            done to synchronize timing delay needed(appr 35ms) to actually 
+            enable/disable of vocoder in DSP.
+*/
+GLOBAL void hl_drv_set_vocoder_state(BOOL user_attach)
+{
+  TRACE_FUNCTION("hl_drv_set_vocoder_state");
+
+  #ifdef VOCODER_FUNC_INTERFACE
+  if ( (user_attach EQ TRUE AND currVocoderState EQ HL_VOCODER_ENABLED) OR
+       (user_attach EQ FALSE AND currVocoderState EQ HL_VOCODER_DISABLED) )
+    return; /* Do nothing, when the timeout occurs corresponding action will be taken */
+
+  switch (currVocoderAction)  /* currVocoderAction is the state */
+  {
+    case VOCODER_IDLE:
+      break;
+
+    case VOCODER_BUSY:
+    {
+      if ( (user_attach EQ TRUE) AND (currVocoderState EQ HL_VOCODER_DISABLED) )
+      {
+        currVocoderAction = VOCODER_PENDING_ENABLE;
+        return;
+      }
+      else if ( (user_attach EQ FALSE) AND (currVocoderState EQ HL_VOCODER_ENABLED) )
+      {
+        currVocoderAction = VOCODER_PENDING_DISABLE;
+        return;
+      }
+    }
+    break;
+
+    case VOCODER_PENDING_ENABLE:
+    {
+      if (user_attach EQ TRUE)
+        return; /* Do nothing */
+      else  /* user_attach EQ FALSE  */
+      {
+        currVocoderAction = VOCODER_PENDING_DISABLE;
+        return;
+      }
+    }
+    break;
+
+    case VOCODER_PENDING_DISABLE:
+    {
+      if (user_attach EQ FALSE)
+        return; /* Do nothing */
+      else  /* user_attach EQ TRUE */
+      {
+        currVocoderAction = VOCODER_PENDING_ENABLE;
+        return;
+      }
+    }
+    break;
+
+    default: /* Assumed to be a never as all values caught */
+      TRACE_ERROR ("Illegal value of currVocoderAction");
+      break;
+
+  }
+  #endif /* VOCODER_FUNC_INTERFACE */
+
+  #ifdef _SIMULATION_
+  if(vocoder_tst_flag)
+  #endif
+  {
+
+      #ifndef VOCODER_FUNC_INTERFACE
+      {
+      if(user_attach AND (currVocoderState EQ HL_VOCODER_DISABLED OR currVocoderState EQ HL_VOCODER_DISABLE_INITIATED))
+        {
+          PALLOC(mmi_tch_vocoder_cfg_req, MMI_TCH_VOCODER_CFG_REQ);
+          mmi_tch_vocoder_cfg_req->vocoder_state = VOCODER_ENABLE;
+          PSENDX(L1, mmi_tch_vocoder_cfg_req);
+        currVocoderState = HL_VOCODER_ENABLE_INITIATED;
+      }
+      if(!user_attach AND (currVocoderState EQ HL_VOCODER_ENABLED OR currVocoderState EQ HL_VOCODER_ENABLE_INITIATED))
+        {
+          PALLOC(mmi_tch_vocoder_cfg_req, MMI_TCH_VOCODER_CFG_REQ);
+          mmi_tch_vocoder_cfg_req->vocoder_state = VOCODER_DISABLE;
+          PSENDX(L1, mmi_tch_vocoder_cfg_req);
+          currVocoderState = HL_VOCODER_DISABLE_INITIATED;
+        }
+      }
+      #else
+      #ifndef _SIMULATION_
+      TRACE_EVENT("Function interface for Vocoder");
+
+      currVocoderAction = VOCODER_BUSY;
+      TIMERSTART(VOCODER_VALUE, ACI_VOCODER);
+      if (user_attach)
+      {
+        enable_tch_vocoder(TRUE);
+        vocoder_mute_dl (FALSE);      /* un-mute speaker    */
+        vocoder_mute_ul (FALSE);      /* un-mute microphone */
+      }
+      else
+      {
+        vocoder_mute_dl (TRUE);       /* mute speaker    */
+        vocoder_mute_ul (TRUE);       /* mute microphone */
+        enable_tch_vocoder (FALSE);   /* disable vocoder */
+      }
+    #endif /* _SIMULATION_ */
+    #endif /* VOCODER_FUNC_INTERFACE */
+  }
+
+  return;
+}
+
+/*
++-------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)        MODULE  : HL_AUDIO_DRV             |
+|                                ROUTINE : hl_drv_get_vocoder_state |
++-------------------------------------------------------------------+
+
+  PURPOSE : This function returns the state of the vocoder
+*/
+
+GLOBAL T_HL_VOCODER_STATE hl_drv_get_vocoder_state (void)
+{
+  return currVocoderState;
+}
+
+#ifndef VOCODER_FUNC_INTERFACE
+/*
++-------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)        MODULE  : HL_AUDIO_DRV             |
+|                                ROUTINE : hl_drv_vocoder_enabled   |
++-------------------------------------------------------------------+
+
+  PURPOSE : Currently this function does nothing
+*/
+
+GLOBAL void hl_drv_vocoder_state_set (void)
+{
+  TRACE_FUNCTION("hl_drv_vocoder_enabled()");
+
+  switch(currVocoderState)
+  {
+  case HL_VOCODER_ENABLE_INITIATED:
+    currVocoderState = HL_VOCODER_ENABLED;
+    break;
+
+  case HL_VOCODER_DISABLE_INITIATED:
+    currVocoderState = HL_VOCODER_DISABLED;
+    break;
+
+  default:
+    break;
+
+  }
+#ifdef VOCODER_FUNC_INTERFACE
+  currVocoderAction = VOCODER_IDLE;
+#endif
+}
+#endif
+
+#ifdef _SIMULATION_
+/*
++-------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)        MODULE  : HL_AUDIO_DRV             |
+|                                ROUTINE : hl_audio_drv_initForTest |
++-------------------------------------------------------------------+
+
+  PURPOSE : Initialise global variables related to simulaed 
+*/
+
+GLOBAL void hl_audio_drv_initForTest(void)
+{
+  vocoder_tst_flag = TRUE;
+}
+#endif