view src/g23m-aci/aci/aci_bat_ext.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
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GSM-F&D (8411)
|  Modul   :  ACI_BAT
+----------------------------------------------------------------------------- 
|  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 file consists of the BAT Extension Mechanism
|
+----------------------------------------------------------------------------- 
*/ 
/*==== INCLUDES ===================================================*/
#include "aci_all.h"
#include "aci_mem.h"
#include "aci_cmh.h"
#include "ati_cmd.h"
#include "dti.h"      /* functionality of the dti library */

#include "aci.h"
#include "aci_lst.h"

#include "psa_psi.h"
#include "cmh_psi.h"
#include "ati_src_psi.h"
#include "sap_dti.h"
#include "psa.h"
#include "cmh.h"

#include "aci_bat_cmh.h"
#include "aci_bat.h"
#include "aci_bat_err.h"
#include "aci_bat_cb.h"  /* for rBAT_OK */

#include "ati_ext_mech.h"
#include "aci_bat_ext.h"


#include "l2p_types.h"
#include "l2p.h"
#include "bat_ctrl.h"
#include "aci_cmd.h"

#ifdef _SIMULATION_
#include "gdd_aci.h"
#endif

typedef struct
{
  U8 ati_custom_src_id;  /* ATI source, which handles the custom cmd/rsp */
  U8 bat_custom_src_id;  /* BAT source, which is the peer to ATI source  */
} T_aci_bat_ext_globs;


T_aci_bat_ext_globs aci_bat_ext_globs = {0xFF, 0xFF};


/*
 * The very first cutom AT command has no peer. So find it by broadcasting the command
 * over all BAT sources. A BAT source is associated with a DTI connection between PSI
 * and ACI. A DTI connection is associated with a certain BAT Lib instance. A BAT Lib
 * instance can be created by a third party application suite, by Bluetooth, by TCP/IP
 * its bearer manager BEAM and others in future.
 * After sending the very first custom command over BAT via broadcast, we wait for the
 * very first answer. Then we know our peer and will address it directly with all 
 * following custom commands.
 * The following simplified MSC illustrates this.
 * The BAT["XXX"] shall express that the string "XXX" is content of the BAT custom container.
 * In the MSC at sequence 8 we got an answer to the custom command. Here we know our peer.
 * Sequence 11 is neccessary to make the state machine of BAT LIB happy.

+---+               +---+                +---+                 +---+                  +---+    +---+
|PC |               |ATI|                |BAT|                 |BAT|                  |APP|    |APP|
|APP|               |EXT|                |MOD|                 |LIB|                  | 1 | .. | N |
+---+               +---+                +---+                 +---+                  +---+    +---+
  |                   |                    |                     |                      |        |
  |                   |                    |                     |                      |        |
  | "AT^SOMETHING=1"  |aci_bat_send_custom_cmd                   |                      |        |
1 |------------------>| "AT^SOMETHING=1"   |                     |                      |        |
2 |                   |------------------->| BAT["AT^SOMETH...]  |                      |        |
3 |                   |                    |-------------------->| uns_cb("AT^SOMETH...)|        |
4 |                   |                    | with DTI over PSI   |--------------------->|        |
  |                   |                    |                     |                      |        |
  |                   |                    |  .. broadcast ..    |                      |        |
  |                   |                    |                     |                      |        |
  |                   |                    | BAT["AT^SOMETH...]  |                      |        |
5 |                   |                    |-------------------->|      uns_cb("AT^SOMETH...)    |
6 |                   |                    |                     |------------------------------>|
  |                   |                    |                     |                      |        |
  |                   |                    |                     |   bat_send("OK")     |        |
7 |                   |                    |      BAT["OK"]      |<---------------------|        |
8 |                   | rEXT_Response_BAT  |<--------------------|                      |        |
9 |     "OK"          |<-------------------|                     |                      |        |
10|<------------------|                    |       BAT_OK        |                      |        |
11|                   |                    |-------------------->| rsp_cb(BAT_OK)       |        |
12|                   |                    |                     |--------------------->|        |
  |                   |                    |                     |                      |        |
 */
LOCAL T_ACI_BAT_RSLT aci_bat_find_peer (T_BAT_cmd_send *cmd)
{
  T_L2P_STATUS l2p_status = L2P_STAT_UNKNOWN_ERROR;
  T_ACI_DTI_PRC_PSI  *src_infos_psi = NULL;
  int errVal      = -1;
  U8  client_id   = 0xFC; /* custom channel */
  int source, client;
  BOOL custom_cmd_has_been_send;
  BOOL has_it_been_send_at_all = FALSE;

  TRACE_FUNCTION("aci_bat_find_peer()");

  for (source = 0; source < CMD_SRC_MAX; source++)
  {
    custom_cmd_has_been_send = FALSE;
    if (aci_cmd_src_mode_get((T_ACI_CMD_SRC)source) NEQ CMD_MODE_BAT)
    {
      continue; /* it is not a BAT source */
    }

    src_infos_psi = find_element(psi_src_params, source, cmhPSItest_srcId);

    for (client=0; client < src_infos_psi->max_clients; client++)
    {
      if (custom_cmd_has_been_send EQ TRUE)
      {
        break;
      }   
      if (src_infos_psi->bat_client[client].curCmd EQ (T_BAT_ctrl_params)-1)
      {
        l2p_status = L2P_Send(aci_bat_get_l2p_id(source),
                              client_id,
                              cmd->ctrl_params,
                              cmd->params.ptr_custom, 
                              cmd->params.ptr_custom->c_buf + sizeof(U16), /* sizeof(c_buf) */
                              &errVal);
        switch (l2p_status)
        {
          case (L2P_STAT_SUCCESS):
          {
            custom_cmd_has_been_send = TRUE;
            has_it_been_send_at_all  = TRUE;
            #ifndef _SIMULATION_
            /* make DTI happy with its flow control stuff */
            psa_psi_DTI_getdata ((UBYTE)(src_infos_psi->srcId), DTI_ENTITY_PSI);
            #endif
            break;
          }
          default:
          {
            TRACE_EVENT_P1("aci_bat_find_peer(): l2p_status = %d", l2p_status);
            TRACE_EVENT_P1("aci_bat_find_peer(): errVal     = %d", errVal); 
            return (ACI_BAT_FAIL);
          }
        }
        break;
      }
    }
    if (custom_cmd_has_been_send EQ FALSE)
    {
      /* either all BAT channels associated to this source are busy or L2P did peg out */
      TRACE_EVENT_P1("aci_bat_find_peer(): missed to send custom command for BAT source = %d", source);
    }
  } /* end of for (source = 0 ; source < CMD_SRC_MAX; source++) */
  if (has_it_been_send_at_all EQ FALSE)
  {
    TRACE_ERROR("aci_bat_find_peer(): was not able to send custom command");
    return (ACI_BAT_FAIL);
  }
  return (ACI_BAT_CMPL);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-F&D (8411)         MODULE  : ACI_BAT                 |
| STATE   : code                   ROUTINE : aci_bat_send_custom_cmd |
+--------------------------------------------------------------------+

  PURPOSE : called by rEXT_Execute(), see ati_ext_mech.c
*/
GLOBAL T_ACI_BAT_RSLT aci_bat_send_custom_cmd (unsigned char src_id, T_BAT_cmd_send *cmd)
{
  T_L2P_STATUS l2p_status = L2P_STAT_UNKNOWN_ERROR;
  T_ACI_BAT_RSLT ret = ACI_BAT_FAIL;
  int errVal    = -1;
  U8 client_id  = 0xFC; /* custom channel */

  TRACE_FUNCTION("aci_bat_send_custom_cmd()");

  if (BITFIELD_CHECK(cmd->ctrl_params, BAT_BIT_13)) /* 0x2xxx = custom command  */
  {
    TRACE_EVENT_P1("aci_bat_send_custom_cmd(): custom cmd 0x%04X over custom channel", cmd->ctrl_params);

    if (aci_bat_ext_globs.ati_custom_src_id EQ 0xFF)
    {
      aci_bat_ext_globs.ati_custom_src_id = src_id; /* remember ATI src_id, from which custom cmd has been sent */
    }
    if (aci_bat_ext_globs.ati_custom_src_id NEQ src_id) /* currently allow only one ATI source to send custom cmds */
    {
      TRACE_EVENT_P2("aci_bat_send_custom_cmd(): ERROR ati_custom_src_id %d != src_id %d", 
                      aci_bat_ext_globs.ati_custom_src_id, src_id);
      return (ACI_BAT_FAIL);
    }
    if (aci_bat_ext_globs.bat_custom_src_id EQ 0xFF)
    {
      ret = aci_bat_find_peer(cmd);
      switch (ret)
      {
        case (ACI_BAT_CMPL):
          return (ACI_BAT_EXCT); /* because response comes asynchronously */
        default:
          break;
      }
    }
    else
    {
      l2p_status = L2P_Send(aci_bat_get_l2p_id(aci_bat_ext_globs.bat_custom_src_id),
                            client_id,
                            cmd->ctrl_params,
                            cmd->params.ptr_custom, 
                            cmd->params.ptr_custom->c_buf + sizeof(U16), /* sizeof(c_buf) */
                            &errVal);
      switch (l2p_status)
      {
        case (L2P_STAT_SUCCESS):
        {
          #ifndef _SIMULATION_
          /* make DTI happy with its flow control stuff */
          psa_psi_DTI_getdata ((UBYTE)(aci_bat_ext_globs.bat_custom_src_id), DTI_ENTITY_PSI);
          #endif
          return (ACI_BAT_EXCT); /* because response comes asynchronously */
        }
        default:
        {
          TRACE_EVENT_P1("aci_bat_send_custom_cmd(): l2p_status = %d", l2p_status);
          TRACE_EVENT_P1("aci_bat_send_custom_cmd(): errVal     = %d", errVal); 
          
        }
      }
    }
  }
  else
  {
    TRACE_EVENT_P1("aci_bat_send_custom_cmd(): ERROR 0x%04X is not a valid custom cmd identifier", 
                    cmd->ctrl_params);
  }
  return (ACI_BAT_FAIL);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-F&D (8411)            MODULE  : ACI_BAT              |
| STATE   : code                      ROUTINE : aci_bat_rcv_custom   |
+--------------------------------------------------------------------+

  PURPOSE : called by aci_bat_l2p_msg_rxd_cb(), see aci_bat.c
            The dataPtr points to a content the customer is responsible for.
            It can be a ASCII string or any binary data.
            The dataSize information is already checked by BAT Lib that it
            does not exceed BAT_MAX_CUSTOM_CMD_LEN.
*/
GLOBAL T_ACI_BAT_RSLT aci_bat_rcv_custom (unsigned char src_id,
                                          unsigned char client,
                                          unsigned int dataTag, 
                                          void *dataPtr, 
                                          unsigned short dataSize)
{
  T_L2P_STATUS l2p_status = L2P_STAT_UNKNOWN_ERROR;
  int errVal    = -1;
  U8 client_id  = client; /* send back on the same client channel */
  T_ATI_EXT_RETURN ret = ATI_EXT_FAIL;
  T_BAT_cmd_response rsp;
  T_BAT_res_plus_ext_error ext_err;
  T_BAT_no_parameter dummy;
  T_BAT_custom custom;

  TRACE_FUNCTION("aci_bat_rcv_custom()");

  TRACE_EVENT_P3("aci_bat_rcv_custom(): tag = 0x%X, size = %d, data = %s", dataTag, dataSize, dataPtr);

  rsp.ctrl_response = (T_BAT_ctrl_response)dataTag;
  rsp.response.ptr_custom = &custom;
  memcpy((U8 *)&custom, (U8 *)dataPtr, dataSize);
  
  aci_bat_ext_globs.bat_custom_src_id = src_id;

  ret = rEXT_Response_BAT (aci_bat_ext_globs.ati_custom_src_id, &rsp);

  /*
   * this response to BAT Lib is neccessary to satisfy it's internal state machine
   */
  switch (ret)
  {
    case (ATI_EXT_CMPL):
    {      
      rsp.ctrl_response = BAT_RES_AT_OK;
      rsp.response.ptr_at_ok = &dummy;
      dummy.bat_dummy = 0xFF;
      
      l2p_status = L2P_Send(aci_bat_get_l2p_id(aci_bat_ext_globs.bat_custom_src_id),
                      client_id,
                      rsp.ctrl_response,
                      rsp.response.ptr_at_ok, 
                      sizeof(T_BAT_no_parameter),
                      &errVal);
      break;
    }
    default:
    {
      TRACE_EVENT("aci_bat_rcv_custom(): rEXT_Response_BAT FAILED");

      rsp.ctrl_response = BAT_RES_PLUS_EXT_ERROR;
      rsp.response.ptr_plus_ext_error = &ext_err;
      ext_err.err = BAT_EXT_ERROR_EXT_ERR_UNKNOWN; 

      l2p_status = L2P_Send(aci_bat_get_l2p_id(aci_bat_ext_globs.bat_custom_src_id),
                      client_id,
                      rsp.ctrl_response,
                      rsp.response.ptr_plus_ext_error, 
                      sizeof(T_BAT_plus_ext_error_err),
                      &errVal);
      break;
    }
  }

  switch (l2p_status)
  {
    case (L2P_STAT_SUCCESS):
    {
      #ifndef _SIMULATION_
      /* make DTI happy with its flow control stuff */
      psa_psi_DTI_getdata ((UBYTE)(aci_bat_ext_globs.bat_custom_src_id), DTI_ENTITY_PSI);
      #endif
      break;
    }
    default:
    {
      TRACE_EVENT_P1("aci_bat_rcv_custom(): l2p_status = %d", l2p_status);
      TRACE_EVENT_P1("aci_bat_rcv_custom(): errVal     = %d", errVal); 
      return (ACI_BAT_FAIL);
    }
  }
  return (ACI_BAT_CMPL);
}