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view src/g23m-aci/aci/cmh_smq.c @ 220:0ed36de51973

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ABB semaphore protection overhaul The ABB semaphone protection logic that came with TCS211 from TI was broken in several ways: * Some semaphore-protected functions were called from Application_Initialize() context. NU_Obtain_Semaphore() called with NU_SUSPEND fails with NU_INVALID_SUSPEND in this context, but the return value wasn't checked, and NU_Release_Semaphore() would be called unconditionally at the end. The latter call would increment the semaphore count past 1, making the semaphore no longer binary and thus no longer effective for resource protection. The fix is to check the return value from NU_Obtain_Semaphore() and skip the NU_Release_Semaphore() call if the semaphore wasn't properly obtained. * Some SPI hardware manipulation was being done before entering the semaphore- protected critical section. The fix is to reorder the code: first obtain the semaphore, then do everything else. * In the corner case of L1/DSP recovery, l1_abb_power_on() would call some non-semaphore-protected ABB & SPI init functions. The fix is to skip those calls in the case of recovery. * A few additional corner cases existed, all of which are fixed by making ABB semaphore protection 100% consistent for all ABB functions and code paths. There is still one remaining problem of priority inversion: suppose a low- priority task calls an ABB function, and some medium-priority task just happens to preempt right in the middle of that semaphore-protected ABB operation. Then the high-priority SPI task is locked out for a non-deterministic time until that medium-priority task finishes its work and goes back to sleep. This priority inversion problem remains outstanding for now.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Apr 2021 20:55:25 +0000
parents fa8dc04885d8
children
line wrap: on
line source

/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   :  
+----------------------------------------------------------------------------- 
|  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 provides the query functions related to the
|             protocol stack adapter for GPRS session management ( SM ).
+----------------------------------------------------------------------------- 
*/ 

#ifdef GPRS
#ifndef CMH_SMQ_C
#define CMH_SMQ_C
#endif

#include "aci_all.h"
#include "cl_inline.h"

/*==== INCLUDES ===================================================*/
#include "dti.h"      /* functionality of the dti library */
#include "aci_cmh.h"
#include "ati_cmd.h"
#include "aci_cmd.h"

#include "pcm.h"

#include "dti_conn_mng.h"
#include "dti_cntrl_mng.h"

#include "gaci.h"
#include "gaci_cmh.h"
#include "psa.h"
#include "psa_sm.h"

#include "cmh.h"
#include "cmh_sm.h"

#include "psa_gmm.h"


#include "gaci_cmh.h"

/*==== CONSTANTS ==================================================*/

/*==== EXPORT =====================================================*/

/*==== VARIABLES ==================================================*/
EXTERN T_PDP_CONTEXT_INTERNAL *p_pdp_context_list;

/*==== FUNCTIONS ==================================================*/

/*
+--------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : CMH_SMQ                  |
| STATE   : finished              ROUTINE : qAT_PlusCGQREQ           |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGQREG? AT
            command and returns current settings for the specified
            PDP context. The function is called for all cids.
            Note: The QoS returned is always in Release 97 format.
  RETURNS:  - AT_CMPL : Completed.
            - AT_FAIL : Command not valid for srcId.
  UPDATES:  - qos: Quality of service for cid. Not updated if cid is undefined.
            - qos_valid: Indicates whether qos is updated not.
*/
GLOBAL T_ACI_RETURN qAT_PlusCGQREQ ( T_ACI_CMD_SRC srcId, U8 cid, BOOL *qos_valid, T_PS_qos *qos)
{
  T_PDP_CONTEXT_INTERNAL *p_pdp_context_node = NULL;
  
  TRACE_FUNCTION ("qAT_PlusCGQREQ()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc (srcId) )
   {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */
  if ( pdp_context_get_state_for_cid( cid ) EQ PDP_CONTEXT_STATE_DEFINED )
  {
    p_pdp_context_node = pdp_context_find_node_from_cid( cid );
    if( p_pdp_context_node )
    {
      if( p_pdp_context_node->ctrl_qos EQ PS_is_R97 )
      {
        memcpy( qos, &p_pdp_context_node->qos.qos_r97, sizeof(T_PS_qos_r97) ); 
      }
      else
      {
        if( !cl_qos_convert_r99_to_r97( &p_pdp_context_node->qos.qos_r99, &qos->qos_r97 ) )
        {
          /* Failed to convert to Release 97. Never end here !!!! */
          return( AT_FAIL );
        }
      }
      *qos_valid = TRUE;
    }
    else
    {
      TRACE_ERROR( "ERROR: PDP context not found" );
      *qos_valid = FALSE;
    }
  } 
  else
  {
    *qos_valid = FALSE;
  }

  return( AT_CMPL );
}


/*
+--------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : CMH_SMQ                  |
| STATE   : finished              ROUTINE : qAT_PlusCGQMIN           |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGQMIN? AT
            command and returns current settings for the specified
            PDP context. The function is called for all cids.
            Note: The QoS returned is always in Release 97 format.
  RETURNS:  - AT_CMPL : Completed.
            - AT_FAIL : Command not valid for srcId.
  UPDATES:  - qos: Quality of service for cid. Not updated if cid is undefined.
            - qos_valid: Indicates whether qos is updated not.
*/
GLOBAL T_ACI_RETURN qAT_PlusCGQMIN ( T_ACI_CMD_SRC srcId, U8 cid, BOOL *qos_valid, T_PS_qos *qos)
{
  T_PDP_CONTEXT_INTERNAL *p_pdp_context_node = NULL;

  TRACE_FUNCTION ("qAT_PlusCGQMIN()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc (srcId) )
   {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */
  if ( pdp_context_get_state_for_cid( cid ) EQ PDP_CONTEXT_STATE_DEFINED )
  {
    p_pdp_context_node = pdp_context_find_node_from_cid( cid );
    
    if( p_pdp_context_node )
    {
      if( p_pdp_context_node->ctrl_min_qos EQ (T_PS_ctrl_min_qos)PS_is_R97 )
      {
        memcpy( qos, &p_pdp_context_node->min_qos, sizeof(T_PS_qos) ); 
      }
      else
      {
        if( !cl_qos_convert_r99_to_r97( &p_pdp_context_node->min_qos.qos_r99, &qos->qos_r97 ) )
        {
          /* Failed to convert to Release 97. Never end here !!!! */
          return( AT_FAIL );
        }
      }
      *qos_valid = TRUE;
    }
    else
    {
      TRACE_ERROR( "ERROR: PDP context not found" );
      *qos_valid = FALSE;
    }
    
  }
  else
  {
    *qos_valid = FALSE;
  }
   return( AT_CMPL );
}

/*
+--------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : CMH_SMQ                  |
| STATE   : finished              ROUTINE : qAT_PlusCGDCONT          |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGCONT? AT
            command which returns current settings for each defined PDP context.
*/

GLOBAL T_ACI_RETURN qAT_PlusCGDCONT( T_ACI_CMD_SRC srcId, T_PDP_CONTEXT *p_pdp_context_array, SHORT *cid_array )
{
  T_PDP_CONTEXT_INTERNAL *p_pdp_context_node = NULL;
  int                     i = 0;
  
  TRACE_FUNCTION ("qAT_PlusCGDSCONT()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc( srcId ) )
   {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */

  p_pdp_context_node = p_pdp_context_list;

  while( p_pdp_context_node AND i < PDP_CONTEXT_CID_MAX )
  {

    if( p_pdp_context_node->type EQ PDP_CONTEXT_TYPE_PRIMARY )
    {

      memcpy( &p_pdp_context_array[i], &p_pdp_context_node->attributes, sizeof(T_PDP_CONTEXT) );

//      memcpy( &p_pdp_context_array[i].pdp_type, &p_pdp_context_node->attributes.pdp_type, sizeof(T_PDP_CONTEXT_PDP_TYPE) );
//      memcpy( &p_pdp_context_array[i].pdp_apn,  &p_pdp_context_node->attributes.pdp_apn,  sizeof(T_PDP_CONTEXT_APN) );
//      memcpy( &p_pdp_context_array[i].pdp_addr, &p_pdp_context_node->attributes.pdp_addr, sizeof(T_PDP_CONTEXT_ADDR) );
      
      cid_array[i] = p_pdp_context_node->cid;
      i++;
      
    }
    
    p_pdp_context_node = p_pdp_context_node->p_next;

  }

  return( AT_CMPL );
}


/*
+--------------------------------------------------------------------+
| PROJECT : UMTS                  MODULE  : CMH_SMQ                  |
| STATE   :                       ROUTINE : qAT_PlusCGDSCONT         |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGCONT? AT
            command which returns current settings for each defined PDP context.
*/

GLOBAL T_ACI_RETURN qAT_PlusCGDSCONT( T_ACI_CMD_SRC srcId, T_PDP_CONTEXT *p_pdp_context_array, U8 *cid_array )
{
  T_PDP_CONTEXT_INTERNAL *p_pdp_context_node = NULL;
  int                     i = 0;
  
  TRACE_FUNCTION ("qAT_PlusCGDSCONT()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc( srcId ) )
   {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */

  p_pdp_context_node = p_pdp_context_list;

  while( p_pdp_context_node AND i < PDP_CONTEXT_CID_MAX )
  {

    if( p_pdp_context_node->type EQ PDP_CONTEXT_TYPE_SECONDARY )
    {
      p_pdp_context_array[i].p_cid  = p_pdp_context_node->attributes.p_cid;
      p_pdp_context_array[i].d_comp = p_pdp_context_node->attributes.d_comp;
      p_pdp_context_array[i].h_comp = p_pdp_context_node->attributes.h_comp;

      cid_array[i] = p_pdp_context_node->cid;
      i++;
      
    }
    
    p_pdp_context_node = p_pdp_context_node->p_next;

  }

   return( AT_CMPL );
}

GLOBAL T_ACI_RETURN qAT_PlusCGTFT( T_ACI_CMD_SRC srcId, U8 *cid_array )
{
  T_PDP_CONTEXT_INTERNAL *p_pdp_context_node = NULL;
  int                     i = 0;
  
  TRACE_FUNCTION ("qAT_PlusCGTFT()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc( srcId ) )
   {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */

  p_pdp_context_node = p_pdp_context_list;

  while( p_pdp_context_node AND i < PDP_CONTEXT_CID_MAX )
  {
    if( p_pdp_context_node->p_tft_pf )
    {
      cid_array[i++] = p_pdp_context_node->cid;
    }
    
    p_pdp_context_node = p_pdp_context_node->p_next;

  }

   return( AT_CMPL );
}

/*
+--------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : CMH_SMQ                  |
| STATE   : finished              ROUTINE : qAT_PlusCGACT            |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGACT? AT
            command which returns current activation states for all defined PDP context.
*/

GLOBAL T_ACI_RETURN qAT_PlusCGACT ( T_ACI_CMD_SRC srcId, BOOL *states, SHORT *cid )
{
  T_PDP_CONTEXT_STATE state = PDP_CONTEXT_STATE_INVALID;
  U8 i = 0, 
     j = 0;

  TRACE_FUNCTION ("qAT_PlusCGACT()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc (srcId) ) {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */
  for ( i=0; i < PDP_CONTEXT_CID_MAX; i++ )
  {
    state = get_state_over_cid( (U8)(i+1) );
    /*if ( state NEQ  PDP_CONTEXT_STATE_UNDEFINED AND state NEQ  PDP_CONTEXT_STATE_INVALID )*/
    if ( state NEQ  PDP_CONTEXT_STATE_INVALID )
    {
      if ( state EQ PDP_CONTEXT_STATE_ACTIVATED OR state EQ PDP_CONTEXT_STATE_DATA_LINK )
        states[j] = TRUE;
      else
        states[j] = FALSE;

      cid[j] = i + 1 ;
      j++;
    }
  }
  cid [j] = PDP_CONTEXT_CID_INVALID;

   return( AT_CMPL );
}

/*
+--------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : CMH_SMQ                  |
| STATE   : finished              ROUTINE : qAT_PlusCGAUTO           |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGAUTO? AT
            command which returns current mode of automatic response
            to network requests.
*/

GLOBAL T_ACI_RETURN qAT_PlusCGAUTO  ( T_ACI_CMD_SRC srcId, T_CGAUTO_N *n)
{

  TRACE_FUNCTION ("qAT_PlusCGAUTO()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc (srcId) ) {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */
  *n = (T_CGAUTO_N) automatic_response_mode;

  return( AT_CMPL );
}


GLOBAL T_ACI_RETURN qAT_PlusCGEREP  ( T_ACI_CMD_SRC srcId, T_CGEREP_MODE *mode, T_CGEREP_BFR *bfr )
{

  TRACE_FUNCTION ("qAT_PlusCGEREP()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc (srcId) ) {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */
  *mode = sm_cgerep_mode;
  *bfr  = sm_cgerep_bfr;

  return( AT_CMPL );
}

GLOBAL T_ACI_RETURN qAT_PlusCGSMS( T_ACI_CMD_SRC srcId, T_CGSMS_SERVICE *service )
{

  TRACE_FUNCTION ("qAT_PlusCGSMS()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc (srcId) ) {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */
  *service = sm_cgsms_service;

  return( AT_CMPL );
}

#ifdef REL99
/*
+--------------------------------------------------------------------+
| PROJECT : UMTS                  MODULE  : CMH_SMQ                  |
| STATE   : finished              ROUTINE : qAT_PlusCGEQREQ          |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGEQREG? AT
            command and returns current settings for the specified
            PDP context. The function is called for all cids.
            Note: The QoS returned is always in Release 99 format (3GPP).
  RETURNS:  - AT_CMPL : Completed.
            - AT_FAIL : Command not valid for srcId.
  UPDATES:  - qos: Quality of service for cid. Not updated if cid is undefined.
            - qos_valid: Indicates whether qos is updated not.
*/
GLOBAL T_ACI_RETURN qAT_PlusCGEQREQ( T_ACI_CMD_SRC srcId, U8 cid, BOOL *qos_valid, T_PS_qos *qos)
{ 
  T_PDP_CONTEXT_INTERNAL *p_pdp_context_node = NULL;

  TRACE_FUNCTION ("qAT_PlusCGEQREQ()");

  p_pdp_context_node = pdp_context_find_node_from_cid( cid );
  if( !p_pdp_context_node )
  {
    *qos_valid = FALSE;
    return( AT_CMPL );
  }

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if( !cmh_IsVldCmdSrc (srcId) )
   {
     ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
     return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */
  if( get_state_over_cid(cid) EQ PDP_CONTEXT_STATE_DEFINED )
  {
    if( p_pdp_context_node->ctrl_qos EQ PS_is_R99 )
    {
      memcpy( qos, &p_pdp_context_node->qos, sizeof(T_PS_qos_r99) ); 
    }
    else
    {
      /* The QoS is in Release 97 format and must be converted first. */    
      if( !cl_qos_convert_r97_to_r99( &p_pdp_context_node->qos.qos_r97, &(qos->qos_r99)) )
      {
        /* Failed to convert to Release 99. Never end here !!!! */
        return( AT_FAIL );
      }
    }
    *qos_valid = TRUE;
  }
  else
  {
    *qos_valid = FALSE;
  }

  return( AT_CMPL );
}

/*
+--------------------------------------------------------------------+
| PROJECT : UMTS                  MODULE  : CMH_SMQ                  |
| STATE   : finished              ROUTINE : qAT_PlusCGEQMIN          |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGEQMIN? AT
            command and returns current settings for the specified
            PDP context. The function is called for all cids.
            The QoS returned is always in Release 99 format (3GPP).
  RETURNS:  - AT_CMPL : Completed.
            - AT_FAIL : Command not valid for srcId.
  UPDATES:  - qos: Quality of service for cid. Not updated if cid is undefined.
            - qos_valid: Indicates whether qos is updated not.
*/
GLOBAL T_ACI_RETURN qAT_PlusCGEQMIN( T_ACI_CMD_SRC srcId, U8 cid, BOOL *qos_valid, T_PS_min_qos *qos)
{
  T_PDP_CONTEXT_INTERNAL *p_pdp_context_node = NULL;

  TRACE_FUNCTION ("qAT_PlusCGEQMIN()");

  p_pdp_context_node = pdp_context_find_node_from_cid( cid );
  if( !p_pdp_context_node )
  {
    *qos_valid = FALSE;
    return( AT_CMPL );
  }
  

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc (srcId) )
   {
     ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
     return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */
  if ( get_state_over_cid(cid) EQ PDP_CONTEXT_STATE_DEFINED )
  {
    if( p_pdp_context_node->ctrl_min_qos EQ (T_PS_ctrl_min_qos)PS_is_R99 )
    {
      memcpy( qos, &p_pdp_context_node->min_qos, sizeof(T_PS_qos) ); 
    }
    else
    {
      /* The QoS is in Release 97 format and must be converted first. */    
      if( !cl_qos_convert_r97_to_r99(&p_pdp_context_node->min_qos.qos_r97, &qos->qos_r99) )
      {
        /* Failed to convert to Release 99. Never end here !!!! */
        return( AT_FAIL );
      }
    }
    *qos_valid = TRUE;
  }
  else
  {
    *qos_valid = FALSE;
  }

  return( AT_CMPL );
}
#endif /* REL99 */


#endif  /* GPRS */
/*==== EOF ========================================================*/