view src/g23m-fad/ppp/ppp_frxs.c @ 75:8697f358f505

backlight rework: Condat light driver accepts levels The present change is another intermediate step on the path toward new FreeCalypso backlight handling. At this intermediate step the Condat light driver accepts 0-255 backlight levels driven by MFW, and puts them out on PWL on Luna development boards. At the same time on C139 it is now possible to turn on the display backlight with or without the keypad bl - the lsb of the 0-255 backlight level controls the keypad bl. MFW presently drives only 0 and 255 backlight levels, thus there is no visible behavioral change yet - but the plan for subsequent stages of this backlight rework is to add a dimmed backlight state (no keypad bl on C139) during active calls.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 24 Oct 2020 20:44:04 +0000
parents fa8dc04885d8
children
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/* 
+----------------------------------------------------------------------------- 
|  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 modul is part of the entity PPP and implements all 
|             functions to handles the incoming process internal signals as  
|             described in the SDL-documentation (FRX-statemachine)
+----------------------------------------------------------------------------- 
*/ 

#define ENTITY_PPP

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

#include "typedefs.h"   /* to get Condat data types */
#include "vsi.h"        /* to get a lot of macros */
#include "macdef.h"     /* to get a lot of macros */
#include "custom.h"     /* to get a lot of macros */
/*lint -efile(766,gsm.h) */
#include "gsm.h"        /* to get a lot of macros */
/*lint -efile(766,cnf_ppp.h) */
#include "cnf_ppp.h"    /* to get cnf-definitions */
/*lint -efile(766,mon_ppp.h) */
#include "mon_ppp.h"    /* to get mon-definitions */
#include "prim.h"       /* to get the definitions of used SAP and directions */
#include "dti.h"        /* to get the DTILIB definitions */
#include "ppp.h"        /* to get the global entity definitions */

#include "ppp_frxf.h"   /* to get function interface from frx */
#include "ppp_arbf.h"   /* to get function interface from arb */
#include "ppp_ptxs.h"   /* to get signal interface from ptx */

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

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

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

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



/*
+------------------------------------------------------------------------------
| Function    : sig_ptx_frx_dead_mode_req
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_PTX_FRX_DEAD_MODE_REQ
|
| Parameters  : no parameters
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_ptx_frx_dead_mode_req () 
{
  TRACE_ISIG( "sig_ptx_frx_dead_mode_req" );

  arb_discard_packet(ppp_data->frx.received_data);
  arb_discard_packet(ppp_data->frx.stored_packet);
  ppp_data->frx.received_data   = NULL;
  ppp_data->frx.stored_packet   = NULL;
  ppp_data->frx.store_state     = FRX_ADD_ERROR;
  ppp_data->frx.frame_complete  = FALSE;
  ppp_data->frx.data_flow_state = FRX_DATA_FLOW_DEAD;

  switch( GET_STATE( PPP_SERVICE_FRX ) )
  {
    case FRX_READY:
    case FRX_READY_NDTI:
    case FRX_TRANSPARENT:
    case FRX_TRANSPARENT_NDTI:
      SET_STATE( PPP_SERVICE_FRX, FRX_DEAD );
      break;

    default:
      TRACE_ERROR( "SIG_PTX_FRX_DEAD_MODE_REQ unexpected" );
      break;
  }
} /* sig_ptx_frx_dead_mode_req() */

/*
+------------------------------------------------------------------------------
| Function    : sig_ptx_frx_ready_mode_req
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_PTX_FRX_READY_MODE_REQ
|
| Parameters  : no parameters
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_ptx_frx_ready_mode_req () 
{
  TRACE_ISIG( "sig_ptx_frx_ready_mode_req" );

  switch( GET_STATE( PPP_SERVICE_FRX ) )
  {
    case FRX_DEAD:
      SET_STATE( PPP_SERVICE_FRX, FRX_READY_NDTI );
      break;

    case FRX_DEAD_DTI:
      SET_STATE( PPP_SERVICE_FRX, FRX_READY );
      break;

    default:
      TRACE_ERROR( "SIG_PTX_FRX_READY_MODE_REQ unexpected" );
      break;
  }
} /* sig_ptx_frx_ready_mode_req() */

/*
+------------------------------------------------------------------------------
| Function    : sig_ptx_frx_transparent_mode_req
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_PTX_FRX_TRANSPARENT_MODE_REQ
|
| Parameters  : no parameters
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_ptx_frx_transparent_mode_req () 
{
  TRACE_ISIG( "sig_ptx_frx_transparent_mode_req" );

  switch( GET_STATE( PPP_SERVICE_FRX ) )
  {
    case FRX_DEAD:
      SET_STATE( PPP_SERVICE_FRX, FRX_TRANSPARENT_NDTI );
      break;

    case FRX_DEAD_DTI:
      SET_STATE( PPP_SERVICE_FRX, FRX_TRANSPARENT );
      break;

    default:
      TRACE_ERROR( "SIG_PTX_FRX_TRANSPARENT_MODE_REQ unexpected" );
      break;
  }
} /* sig_ptx_frx_transparent_mode_req() */

/*
+------------------------------------------------------------------------------
| Function    : sig_ptx_frx_start_flow_req
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_PTX_FRX_START_FLOW_REQ
|
| Parameters  : no parameters
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_ptx_frx_start_flow_req () 
{
  TRACE_ISIG( "sig_ptx_frx_start_flow_req" );
  /*
   * set FRX PTX data flow state to ready.
   */
  ppp_data->frx.data_flow_state = FRX_DATA_FLOW_READY;

  switch( GET_STATE( PPP_SERVICE_FRX ) )
  {
    case FRX_READY:
      /*
       * Send if necessary residuary packets from frame received before
       */
      frx_send_pack_ready_mode ();
      /* 
       * check if all packet of frame were sent and start dti
       */
      if((ppp_data->frx.frame_complete  EQ FALSE )         AND
         (ppp_data->frx.data_flow_state EQ FRX_DATA_FLOW_READY))
      {
        /*
         * Send a start signal to DTI 
         */
        dti_start(ppp_data->ppphDTI, PPP_INSTANCE, PEER_LAYER, PEER_CHANNEL);
      }
      break;

    case FRX_TRANSPARENT:
      /*
       * Send if necessary residuary packets from frame received before
       */
      frx_send_pack_transp_mode ();
      /* 
       * check if all packet of frame were sent and start dti 
       */
      if((ppp_data->frx.frame_complete  EQ FALSE)          AND
         (ppp_data->frx.data_flow_state EQ FRX_DATA_FLOW_READY))
      {
        /*
         * Send a start signal to DTI 
         */
        dti_start(ppp_data->ppphDTI, PPP_INSTANCE, PEER_LAYER, PEER_CHANNEL);
      }
      break;
    case FRX_READY_NDTI:
    case FRX_TRANSPARENT_NDTI: 
      /*
       * silently ignore duplicate signal..
       */
      break;

    default:
      TRACE_ERROR( "SIG_PTX_FRX_START_FLOW_REQ unexpected" );
      break;
  }

} /* sig_ptx_frx_start_flow_req() */


/*
+------------------------------------------------------------------------------
| Function    : sig_ptx_frx_stop_flow_req
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_PTX_FRX_STOP_FLOW_REQ
|
| Parameters  : no parameters
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_ptx_frx_stop_flow_req () 
{
  TRACE_ISIG( "sig_ptx_frx_stop_flow_req" );

  /*
   * set FRX-PTX data flow state to dead.
   */
  ppp_data->frx.data_flow_state = FRX_DATA_FLOW_DEAD;
  
  switch( GET_STATE( PPP_SERVICE_FRX ) )
  {
    case FRX_READY:
    case FRX_TRANSPARENT:
      /*
       * Send a stop signal to DTI 
       */
      dti_stop(ppp_data->ppphDTI, PPP_INSTANCE, PEER_LAYER, PEER_CHANNEL);
      break;

    case FRX_READY_NDTI:
    case FRX_TRANSPARENT_NDTI:
      /*
       * silently ignore duplicate signal..
       */
      break;
     default:
      TRACE_ERROR( "SIG_PTX_FRX_STOP_FLOW_REQ unexpected" );
      break;
  }

} /* sig_ptx_frx_stop_flow_req() */

/*
+------------------------------------------------------------------------------
| Function    : sig_arb_frx_dti_connected_req
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_ARB_FRX_DTI_CONNECTED_REQ
|
| Parameters  : no parameters
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_arb_frx_dti_connected_req ()
{
  TRACE_ISIG( "sig_arb_frx_dti_connected_req" );

  switch( GET_STATE( PPP_SERVICE_FRX ) )
  {
    case FRX_DEAD:
      SET_STATE( PPP_SERVICE_FRX, FRX_DEAD_DTI );
      break;

    case FRX_READY_NDTI:
      SET_STATE( PPP_SERVICE_FRX, FRX_READY );
      /*
       * Send a start signal to DTI 
       */
      dti_start(ppp_data->ppphDTI, PPP_INSTANCE, PEER_LAYER, PEER_CHANNEL);
      break;

    case FRX_TRANSPARENT_NDTI: 
      SET_STATE( PPP_SERVICE_FRX, FRX_TRANSPARENT );
      /*
       * Send a start signal to DTI 
       */
      dti_start(ppp_data->ppphDTI, PPP_INSTANCE, PEER_LAYER, PEER_CHANNEL);
      break;

    default:
      TRACE_ERROR( "SIG_ARB_FRX_DTI_CONNECTED_REQ unexpected" );
      break;
  }
} /* sig_arb_frx_dti_connected_req() */


/*
+------------------------------------------------------------------------------
| Function    : sig_dti_frx_data_received_ind
+------------------------------------------------------------------------------
| Description : Handles the signal SIG_DTI_FRX_DATA_RECEIVED_IND
|
| Parameters  : dti_data_ind - Ptr. to primitive payload
|
+------------------------------------------------------------------------------
*/

GLOBAL void sig_dti_frx_data_received_ind (T_DTI2_DATA_IND *dti_data_ind)
{
  TRACE_FUNCTION( "sig_dti_frx_data_received_ind" );

  PACCESS(dti_data_ind);

#ifdef PPP_HDLC_TRACE
  {
    T_desc2* trace_desc;
    
    trace_desc = (T_desc2*)dti_data_ind->desc_list2.first;
    while(trace_desc)
    {
      if(trace_desc->len)
      {
        TRACE_EVENT_P4("new desc=0x%08x: first=0x%02x last=0x%02x len=%d", 
                       trace_desc,
                       trace_desc->buffer[0], 
                       trace_desc->buffer[trace_desc->len - 1], 
                       trace_desc->len);
      }
      else
      {
        TRACE_EVENT_P1("new desc=0x%08x: len=0", trace_desc);
      }
      trace_desc = (T_desc2*)trace_desc->next;
    }
  }
#endif /* PPP_HDLC_TRACE */

  switch( GET_STATE( PPP_SERVICE_FRX ) )
  {
    case FRX_READY:
      ppp_data->frx.received_data = (T_desc2*)dti_data_ind->desc_list2.first;
      ppp_data->frx.proceed_data  = 0;

      /*
       * send as many packets to ptx as can be extracted
       * from the one just received
       */
      frx_add_desc();
      frx_send_pack_ready_mode();
      break;

    case FRX_TRANSPARENT:
      ppp_data->frx.received_data = (T_desc2*)dti_data_ind->desc_list2.first;
      ppp_data->frx.proceed_data  = 0;

      /*
       * send as many packets to ptx as can be extracted
       * from the one just received
       */
      frx_detect_frame();
      frx_send_pack_transp_mode();
      break;

    default:
      TRACE_ERROR( "DTI signal unexpected" );
      /*
       * free the data
       */
      arb_discard_packet((T_desc2*)dti_data_ind->desc_list2.first);
      break;
  }
  
  /*
   * free the primitive
   */
  PFREE(dti_data_ind);
} /* sig_dti_frx_data_received_ind() */