view src/g23m-gprs/llc/llc_uirxs.c @ 624:012028896cfb

FFS dev.c, Leonardo target: Fujitsu MB84VF5F5F4J2 #if 0'ed out The FFS code we got from TI/Openmoko had a stanza for "Fujitsu MB84VF5F5F4J2 stacked device", using a fake device ID code that would need to be patched manually into cfgffs.c (suppressing and overriding autodetection) and using an FFS base address in the nCS2 bank, indicating that this FFS config was probably meant for the MCP version of Leonardo which allows for 16 MiB flash with a second bank on nCS2. We previously had this FFS config stanza conditionalized under CONFIG_TARGET_LEONARDO because the base address contained therein is invalid for other targets, but now that we actually have a Leonardo build target in FC Magnetite, I realize that the better approach is to #if 0 out this stanza altogether: it is already non-functional because it uses a fake device ID code, thus it is does not add support for more Leonardo board variants, instead it is just noise.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 22 Dec 2019 21:24:29 +0000
parents 219afcfc6250
children
line wrap: on
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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 LLC and implements all
|             functions to handles the incoming process internal signals as
|             described in the SDL-documentation (UIRX-statemachine)
+-----------------------------------------------------------------------------
*/

#ifndef LLC_UIRXS_C
#define LLC_UIRXS_C
#endif

#define ENTITY_LLC

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

#include "typedefs.h"   /* to get Condat data types */
#include "vsi.h"        /* to get a lot of macros */
#include "macdef.h"
#include "gprs.h"
#include "gsm.h"        /* to get a lot of macros */
#include "cnf_llc.h"    /* to get cnf-definitions */
#include "mon_llc.h"    /* to get mon-definitions */
#include "prim.h"       /* to get the definitions of used SAP and directions */
#include "llc.h"        /* to get the global entity definitions */

#include "llc_uirxf.h"  /* to get local UIRX functions */

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

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

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

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



/*
+------------------------------------------------------------------------------
| Function    : sig_llme_uirx_assign_req
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_LLME_UIRX_ASSIGN_REQ
|
| Parameters  :
|
+------------------------------------------------------------------------------
*/
#ifndef CF_FAST_EXEC

GLOBAL void sig_llme_uirx_assign_req (void)
{
  TRACE_ISIG( "sig_llme_uirx_assign_req" );

  switch (GET_STATE(UIRX))
  {
    case UIRX_TLLI_UNASSIGNED_NOT_READY:
      SET_STATE (UIRX, UIRX_ADM_NOT_READY);
      /*
       * Initialise current incarnation.
       */
      uirx_init_sapi();
      break;
    case UIRX_TLLI_UNASSIGNED_READY:
      SET_STATE (UIRX, UIRX_ADM_READY);
      /*
       * Initialise current incarnation.
       */
      uirx_init_sapi();
      break;
    default:
      TRACE_ERROR( "SIG_LLME_UIRX_ASSIGN_REQ unexpected" );
      break;
  }
} /* sig_llme_uirx_assign_req() */

#endif /* CF_FAST_EXEC */

/*
+------------------------------------------------------------------------------
| Function    : sig_llme_uirx_unassign_req
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_LLME_UIRX_UNASSIGN_REQ
|
| Parameters  :
|
+------------------------------------------------------------------------------
*/
#ifndef CF_FAST_EXEC

GLOBAL void sig_llme_uirx_unassign_req (void)
{
  TRACE_ISIG( "sig_llme_uirx_unassign_req" );

  switch (GET_STATE(UIRX))
  {
    case UIRX_ADM_NOT_READY:
      SET_STATE (UIRX, UIRX_TLLI_UNASSIGNED_NOT_READY);
      break;
    case UIRX_ADM_READY:
      SET_STATE (UIRX, UIRX_TLLI_UNASSIGNED_READY);
      break;
    default:
      TRACE_ERROR( "SIG_LLME_UIRX_UNASSIGN_REQ unexpected" );
      break;
  }
} /* sig_llme_uirx_unassign_req() */

#endif /* CF_FAST_EXEC */


/*
+------------------------------------------------------------------------------
| Function    : sig_llme_uirx_reset_req
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_LLME_UIRX_RESET_REQ
|
| Parameters  :
|
+------------------------------------------------------------------------------
*/
#ifndef CF_FAST_EXEC

GLOBAL void sig_llme_uirx_reset_req (void)
{
  TRACE_ISIG( "sig_llme_uirx_reset_req" );

  switch (GET_STATE(UIRX))
  {
    case UIRX_TLLI_UNASSIGNED_NOT_READY:
      /*
       * No break!
       */
    case UIRX_TLLI_UNASSIGNED_READY:
      /*
       * No break!
       */
    case UIRX_ADM_NOT_READY:
      /*
       * No break!
       */
    case UIRX_ADM_READY:
      /*
       * Only use this procedure as long as it initalises only the requested
       * variables on reset (V(UR) as of V6.4.0).
       */
      uirx_init_sapi();
      break;
    default:
      TRACE_ERROR( "SIG_LLME_UIRX_RESET_REQ unexpected" );
      break;
  }
} /* sig_llme_uirx_reset_req() */

#endif /* CF_FAST_EXEC */



/*
+------------------------------------------------------------------------------
| Function    : sig_rx_uirx_data_ind
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_RX_UIRX_DATA_IND
|
| Parameters  : ll_unitdata_ind - a valid pointer to an LL-UNITDATA-IND
|                                 primitive
|               nu - N(U) of the received UI frame
|
+------------------------------------------------------------------------------
*/
/*#if defined(CF_FAST_EXEC) || defined(_SIMULATION_) || \
   !defined(REL99)     || defined(LL_2to1) */

GLOBAL void sig_rx_uirx_data_ind (T_LL_UNITDATA_IND *ll_unitdata_ind,
                                  T_FRAME_NUM nu)
{
  USHORT            diff;

  TRACE_ISIG( "sig_rx_uirx_data_ind" );

  /*
   * SAPI has already been checked by service RX.
   */

  switch (GET_STATE(UIRX))
  {
    case UIRX_ADM_NOT_READY:
      /*
       * Calculate relative difference of V(UR) and N(U): add 512 to V(UR),
       * subtract N(U), apply modulo 512 to get back into the valid range
       */
      diff = (((llc_data->sapi->vur +
        (MAX_SEQUENCE_NUMBER+1)) - nu) % (MAX_SEQUENCE_NUMBER+1));

      /*
       * Original formula:
       *   V(UR)-32 <= N(U) < V(UR)
       * Translated:
       *   the relative difference must be maximally 32, and minimally 1
       */
      if ((diff > 0) AND (diff <= 32))
      {
        /*
         * We've got an retranmitted frame. Check if we got it already.
         */
        if (uirx_check_nu (nu, llc_data->sapi->vur) == TRUE)
        {
          /*
           * N(U) already received. Discard frame without any futher action.
           */
          PFREE (ll_unitdata_ind);
          TRACE_0_INFO("Duplicate frame number ignored");
          return;
        }
      }
      else
      {
        /*
         * We've got a new, not retransmitted, frame. Set V(UR) to the new value.
         */
        uirx_set_new_vur ((T_FRAME_NUM)(nu + 1));
      }

      /*
       * Store the N(U) of the frame to be already received.
       */
      uirx_store_nu (nu, llc_data->sapi->vur);

      /*
       * We are not ready to send data. Store frame in UIRX queue,
       * if possible.
       */
      uirx_queue_store (ll_unitdata_ind);
      break;

    case UIRX_ADM_READY:
      /*
       * Calculate relative difference of V(UR) and N(U): add 512 to V(UR),
       * subtract N(U), apply modulo 512 to get back into the valid range
       */
      diff = (((llc_data->sapi->vur +
        (MAX_SEQUENCE_NUMBER+1)) - nu) % (MAX_SEQUENCE_NUMBER+1));

      /*
       * Original formula:
       *   V(UR)-32 <= N(U) < V(UR)
       * Translated:
       *   the relative difference must be maximally 32, and minimally 1
       */
      if ((diff > 0) AND (diff <= 32))
      {
        /*
         * We've got an retranmitted frame. Check if we got it already.
         */
        if (uirx_check_nu (nu, llc_data->sapi->vur) == TRUE)
        {
          /*
           * N(U) already received. Discard frame without any futher action.
           */
          PFREE (ll_unitdata_ind);
          TRACE_0_INFO("Duplicated frame number ignored");
          return;
        }
      }
      else
      {
        /*
         * We've got a new, not retransmitted, frame. Set V(UR) to the new value.
         */
        uirx_set_new_vur ((T_FRAME_NUM)(nu + 1));
      }

      /*
       * Store the N(U) of the frame to be already received.
       */
      uirx_store_nu (nu, llc_data->sapi->vur);

      /*
       * Label S_UNITDATA
       */

      /*
       * No flow control for SAPI 1.
       */
      if (llc_data->current_sapi != LL_SAPI_1)
      {
        /*
         * Transit to state ADM_NOT_READY.
         */
        SET_STATE (UIRX, UIRX_ADM_NOT_READY);
      }

      /*
       * Send primitive LL-UNITDATA-IND to either GMM, SNDCP, or GSMS,
       * depending on the SAPI.
       */
      switch (ll_unitdata_ind->sapi)
      {
        case LL_SAPI_1:
          TRACE_PRIM_TO("GMM");
          TRACE_3_OUT_PARA("s:%d len:%d c:%d", ll_unitdata_ind->sapi,
                                           BYTELEN(ll_unitdata_ind->sdu.l_buf),
                                           ll_unitdata_ind->cipher);
          PSEND (hCommGMM, ll_unitdata_ind);
          break;

        case LL_SAPI_3:
        case LL_SAPI_5:
        case LL_SAPI_9:
        case LL_SAPI_11:
          TRACE_3_OUT_PARA("s:%d len:%d c:%d", ll_unitdata_ind->sapi,
                                           BYTELEN(ll_unitdata_ind->sdu.l_buf),
                                           ll_unitdata_ind->cipher);
          PSEND (hCommSNDCP, ll_unitdata_ind);
          break;

        case LL_SAPI_7:
#ifdef LL_2to1
          TRACE_PRIM_TO("MM");
          TRACE_3_OUT_PARA("s:%d len:%d c:%d", ll_unitdata_ind->sapi,
                                           BYTELEN(ll_unitdata_ind->sdu.l_buf),
                                           ll_unitdata_ind->cipher);
          PSEND (hCommMM, ll_unitdata_ind);
#else
          TRACE_PRIM_TO("GSMS");
          TRACE_3_OUT_PARA("s:%d len:%d c:%d", ll_unitdata_ind->sapi,
                                           BYTELEN(ll_unitdata_ind->sdu.l_buf),
                                           ll_unitdata_ind->cipher);
          PSEND (hCommGSMS, ll_unitdata_ind);
#endif
          break;

        default:
          PFREE (ll_unitdata_ind);
          TRACE_ERROR ("invalid global SAPI value");
          break;
      }
      break;

    default:
      PFREE (ll_unitdata_ind);
      TRACE_ERROR( "SIG_RX_UIRX_DATA_IND unexpected" );
      break;
  }
} /* sig_rx_uirx_data_ind() */

/*#endif */ /* CF_FAST_EXEC || _SIMULATION_ */