view src/g23m-aci/gdd_dio/gdd_dio_drxf.c @ 303:f76436d19a7a default tip

!GPRS config: fix long-standing AT+COPS chance hanging bug There has been a long-standing bug in FreeCalypso going back years: sometimes in the AT command bring-up sequence of an ACI-only MS, the AT+COPS command would produce only a power scan followed by cessation of protocol stack activity (only L1 ADC traces), instead of the expected network search sequence. This behaviour was seen in different FC firmware versions going back to Citrine, and seemed to follow some law of chance, not reliably repeatable. This bug has been tracked down and found to be specific to !GPRS configuration, stemming from our TCS2/TCS3 hybrid and reconstruction of !GPRS support that was bitrotten in TCS3.2/LoCosto version. ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3 version and had to be pulled from TCS2 - but as it turns out, there is a new field in the MMR_REG_REQ primitive that needs to be set correctly, and that psa_mms.c module is the place where this initialization needed to be added.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 08 Jun 2023 08:23:37 +0000
parents fa8dc04885d8
children
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/*
+-----------------------------------------------------------------------------
|  File     : gdd_dio_drxf.c
+-----------------------------------------------------------------------------
|  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 modul is part of the entity gdd_dio and implements the
|             drx service functions.
+-----------------------------------------------------------------------------
*/


#define ENTITY_GDD_DIO

/*==== INCLUDES =============================================================*/

#include "typedefs.h"   /* to get Condat data types */
#include "vsi.h"        /* to get a lot of macros */

/* GDD stuff */
#include "gdd_dio.h"       /* to get the global entity definitions */
#include "gdd_dio_data.h"  /* to get internal data structures */

#include "gdd_dio_con_mgr.h"
#include "gdd_dio_queue.h"
#include "gdd_dio_drxf.h"
#include "gdd_dio_txf.h"


/*==== CONST ================================================================*/

/*==== LOCAL VARS ===========================================================*/

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

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


GLOBAL void gdd_dio_drx_sig_receive_data(T_GDD_CON_HANDLE con_handle, T_dio_buffer * buf)
{
  T_GDD_DIO_CON_DATA * con_data;
  GDD_RESULT result;
  
  TRACE_FUNCTION("[GDD] gdd_dio_drx_sig_receive_data()");
  
  con_data = get_con_data_from_handle(con_handle);
  
  result = con_data->rcv_cb(con_handle, (T_GDD_BUF *)buf);
  if(result EQ GDD_OK)
  {
    gdd_dio_send_signal_to_dio(con_data, DRV_SIGTYPE_WRITE);
  }
  else
  {
  /* Do nothing - the client must come back to use by calling
    gdd_signal_ready_rcv. */
  }
}

GLOBAL void gdd_dio_drx_ready_to_rcv(T_GDD_CON_HANDLE  con_handle)
{
  T_GDD_DIO_CON_DATA * con_data;
  T_dio_buffer * buf;
  GDD_RESULT result;
  
  TRACE_FUNCTION("[GDD] gdd_dio_drx_ready_to_rcv()");
  
  con_data = get_con_data_from_handle(con_handle);
  
  if(gdd_dio_queue_peek_next_for_dequeue(&(con_data->tx_queue), &buf))
  {
    /* Send data to client */  
    result = con_data->rcv_cb(con_handle, (T_GDD_BUF *)buf);
    if(result EQ GDD_OK)
    {
      gdd_dio_send_signal_to_dio(con_data, DRV_SIGTYPE_WRITE);
    }
    else
    {
    /* Do nothing - the client must come back again later by calling
      gdd_signal_ready_rcv. */
    }
  }
  else
  {
    TRACE_ERROR("[GDD] Failed to peek buffer");
  }
}