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view src/g23m-gprs/sndcp/sndcp_suap.c @ 629:3231dd9b38c1

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armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively, and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code for C-Sample and earlier turns them into GPIOs configured as outputs also driving 1 - so far, so good - but TI's code for BOARD 41 (which covers D-Sample, Leonardo and all real world Calypso devices derived from the latter) switches them from MCUEN to GPIOs, but then leaves them as inputs. Given that the hardware powerup state of these two pins is outputs driving 1, every Calypso board design MUST be compatible with such driving; typically these GPIO signals will be either unused and unconnected or connected as outputs driving some peripheral. Turning these pins into GPIO inputs will result in floating inputs on every reasonably-wired board, thus I am convinced that this configuration is nothing but a bug on the part of whoever wrote this code at TI. This floating input bug had already been fixed earlier for GTA modem and FCDEV3B targets; the present change makes the fix unconditional for all "classic" targets. The newly affected targets are D-Sample, Leonardo, Tango and GTM900.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 02 Jan 2020 05:38:26 +0000
parents 219afcfc6250
children
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GPRS (8441)
|  Modul   :  sndcp_suap.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 SNDCP and implements all 
|             functions to handles the incoming primitives as described in 
|             the SDL-documentation (SUA-statemachine)
+----------------------------------------------------------------------------- 
*/ 

#define ENTITY_SNDCP 

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

#include "typedefs.h"    /* to get Condat data types */
#include "vsi.h"        /* to get a lot of macros */
#include "macdef.h"
#include "prim.h"       /* to get the definitions of used SAP and directions */

#include "dti.h"

#include "sndcp.h"        /* to get the global entity definitions */
#include "sndcp_f.h"       /* to get the functions to access the global arrays*/

#include "sndcp_suaf.h"     /* to get internal functions of service sua */
#include "sndcp_nus.h"     /* to get signal functions to service nu */


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

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

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

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



/*
+------------------------------------------------------------------------------
| Function    : sua_ll_data_cnf
+------------------------------------------------------------------------------
| Description : Handles the primitive LL_DATA_CNF
|
| Parameters  : *ll_data_cnf - Ptr to primitive payload
|
+------------------------------------------------------------------------------
*/
GLOBAL void sua_ll_data_cnf ( T_LL_DATA_CNF *ll_data_cnf )
{ 
  BOOL complete = FALSE;
  BOOL found = FALSE;
  T_SEG_INFO* help = NULL;
  T_SEG_INFO* last_help = NULL;
  UBYTE sapi_index = 0;
  UBYTE refi = 0;

  TRACE_FUNCTION( "sua_ll_data_cnf" );

   /*
    * set service instance according to sapi in primitive
    */
  sndcp_get_sapi_index(ll_data_cnf->sapi, &sapi_index);
  sndcp_data->sua = & sndcp_data->sua_base[sapi_index];

  TRACE_EVENT_P1("ll_data_cnf->c_reference1: %d", ll_data_cnf->c_reference1);
  
  switch( GET_STATE( SUA ) )
  {
    case SUA_LLC_NOT_RECEPTIVE_SUSPEND:
    case SUA_LLC_RECEPTIVE_SUSPEND:
    case SUA_LLC_NOT_RECEPTIVE:
    case SUA_LLC_RECEPTIVE:
      for (refi = 0; refi < ll_data_cnf->c_reference1; refi++) {
        complete = FALSE;
        found = FALSE;
        last_help = NULL;
        help = sndcp_data->sua->first_seg_info;
        if (help == NULL) {
          /*
           * There are no N-PDUs buffered. CNF must be wrong.
           */
          if (ll_data_cnf != NULL) {
            TRACE_EVENT("There are no N-PDUs buffered. CNF must be wrong.");
            PFREE(ll_data_cnf);
          }
          return;
        }
        while (help != NULL && !found) {
          TRACE_EVENT_P1("ll_data_cnf->reference1[refi].ref_nsapi: %d",
                         ll_data_cnf->reference1[refi].ref_nsapi);
          TRACE_EVENT_P1("ll_data_cnf->reference1[refi].ref_npdu_num: %d",
                         ll_data_cnf->reference1[refi].ref_npdu_num);
          TRACE_EVENT_P1("ll_data_cnf->reference1[refi].ref_seg_num: %d",
                         ll_data_cnf->reference1[refi].ref_seg_num);
          if (ll_data_cnf->reference1[refi].ref_nsapi == help->nsapi &&
            ll_data_cnf->reference1[refi].ref_npdu_num == help->npdu_number) 
          {
            TRACE_EVENT_P1("ll_data_cnf->reference1[refi].ref_seg_num: %d",
                           ll_data_cnf->reference1[refi].ref_seg_num);
            TRACE_EVENT_P1("old help->cnf_segments: %d", help->cnf_segments);
            help->cnf_segments += 
              1 << ll_data_cnf->reference1[refi].ref_seg_num;
            TRACE_EVENT_P1("new help->cnf_segments: %d", help->cnf_segments);
            found = TRUE;
          }
          last_help = help;
          help = help->next;
        }
        if (!found) {
          /*
           * No affected NPDU found.
           */
          if (ll_data_cnf != NULL) {
            TRACE_EVENT("No affected NPDU found.");
            PFREE(ll_data_cnf);
          }
          return;
        }

        /*
         * If the affected N-PDU is completely confirmed, notify service nu and
         * free last_help.
         */

        TRACE_EVENT_P1("last_help->number_of_segments: %d", 
                       last_help->number_of_segments);
        TRACE_EVENT_P1("last_help->cnf_segments: %d", 
                       last_help->cnf_segments);

        if (last_help->number_of_segments == SNDCP_SEGMENT_NUMBERS_ACK) {
          if (last_help->cnf_segments ==
            SNDCP_MAX_COMPLETE /*4294967295 == 2**32 - 1*/) {
            complete = TRUE;
          }
        } else if (last_help->cnf_segments == 
          ((ULONG)(1 << last_help->number_of_segments) - 1)) {
          complete = TRUE;
        }
        if (complete) {
          /*
           * Notify service nu.
           */
          sig_sua_nu_data_cnf
            (ll_data_cnf->reference1[refi].ref_nsapi, 
            (UBYTE)ll_data_cnf->reference1[refi].ref_npdu_num);
          /*
           * Free last_help.
           */
          help = sndcp_data->sua->first_seg_info;
          if (help == last_help) {
            sndcp_data->sua->first_seg_info = help->next;
            MFREE(help);
            help = NULL;
          } else {
            T_SEG_INFO* help_next = help->next;
            while (help->next != last_help) {
              help = help->next;
            }
            help_next = help->next;
            help->next = help_next->next;
            MFREE (help_next);
          }
        }
      } /* for refi */
      break;
    default:
      TRACE_ERROR( "LL_DATA_CNF unexpected" );
      break;
  }
  if (ll_data_cnf != NULL) {
    PFREE(ll_data_cnf);
  }

} /* sua_ll_data_cnf() */


#ifdef _SNDCP_DTI_2_
/*
+------------------------------------------------------------------------------
| Function    : sua_ll_ready_ind
+------------------------------------------------------------------------------
| Description : Handles the primitive LL_READY_IND
|
| Parameters  : *ll_ready_ind - Ptr to primitive payload
|
+------------------------------------------------------------------------------
*/
GLOBAL void sua_ll_ready_ind ( T_LL_READY_IND *ll_ready_ind )
{ 
  U8 sapi_index = 0;

  TRACE_FUNCTION( "sua_ll_ready_ind" );

   /*
    * set service instance according to sapi in primitive
    */
  sndcp_get_sapi_index(ll_ready_ind->sapi, &sapi_index);
  sndcp_data->sua = & sndcp_data->sua_base[sapi_index];

  switch( GET_STATE( SUA ) )
  {
    case SUA_LLC_NOT_RECEPTIVE_SUSPEND:
      /*
       * Is queue with outgoing LL_DESC_REQs empty?
       */
      if (sndcp_data->sua->ll_desc_q_read ==
          sndcp_data->sua->ll_desc_q_write) {
        if (sndcp_data->sua->cia_state == CIA_IDLE) {
          sua_next_sn_data_req(ll_ready_ind->sapi);
        }
      }
      SET_STATE(SUA, SUA_LLC_RECEPTIVE_SUSPEND);
      break;
    case SUA_LLC_RECEPTIVE_SUSPEND:
      break;
    case SUA_LLC_NOT_RECEPTIVE:
      /*
       * Is queue with outgoing LL_DESC_REQs empty?
       */
      if (sndcp_data->sua->ll_desc_q_read ==
          sndcp_data->sua->ll_desc_q_write) {
        SET_STATE(SUA, SUA_LLC_RECEPTIVE);
        if (sndcp_data->sua->cia_state == CIA_IDLE) {
          sua_next_sn_data_req(ll_ready_ind->sapi);
        }
      } else { /* sndcp_data->sua.ll_desc_q is not empty */
        /*
         * Send next ll_desc_req from queue.
         */
        T_LL_DESC_REQ* ll_desc_req = 
          sndcp_data->sua->ll_desc_q[sndcp_data->sua->ll_desc_q_read];
        
        U8 ll_desc_sapi    = ll_desc_req->sapi;
        U8 ll_desc_seg_pos = ll_desc_req->seg_pos;
        U8 ll_desc_nsapi   = sua_get_nsapi(ll_desc_req);

        sndcp_data->sua->ll_desc_q[sndcp_data->sua->ll_desc_q_read] = NULL;
        sndcp_data->sua->ll_desc_q_read =
          (sndcp_data->sua->ll_desc_q_read + 1) % SNDCP_SEGMENT_NUMBERS_ACK;

#ifdef _SIMULATION_
        su_send_ll_data_req_test(ll_desc_req);
#else /* _SIMULATION_ */ 
        PSEND(hCommLLC, ll_desc_req);
#endif /* _SIMULATION_ */

        if ((ll_desc_seg_pos & SEG_POS_LAST) > 0) {
          sig_sua_nu_ready_ind( ll_desc_nsapi );
          sua_next_sn_data_req( ll_desc_sapi );
          sndcp_data->sua->cia_state = CIA_IDLE;
        }


      } /* sndcp_data->sua.ll_desc_q is not empty */
      break;
    case SUA_LLC_RECEPTIVE:
      break;
    default:
      TRACE_ERROR( "LL_READY_IND unexpected" );
      break;
  }
  if (ll_ready_ind != NULL) {
    PFREE (ll_ready_ind);
  }

} /* su_ll_ready_ind() */
#else /* _SNDCP_DTI_2_ */
/*
+------------------------------------------------------------------------------
| Function    : sua_ll_ready_ind
+------------------------------------------------------------------------------
| Description : Handles the primitive LL_READY_IND
|
| Parameters  : *ll_ready_ind - Ptr to primitive payload
|
+------------------------------------------------------------------------------
*/
GLOBAL void sua_ll_ready_ind ( T_LL_READY_IND *ll_ready_ind )
{ 
  UBYTE sapi_index = 0;

  TRACE_FUNCTION( "sua_ll_ready_ind" );

   /*
    * set service instance according to sapi in primitive
    */
  sndcp_get_sapi_index(ll_ready_ind->sapi, &sapi_index);
  sndcp_data->sua = & sndcp_data->sua_base[sapi_index];

  switch( GET_STATE( SUA ) )
  {
    case SUA_LLC_NOT_RECEPTIVE_SUSPEND:
      /*
       * Is queue with outgoing LL_DATA_REQs empty?
       */
      if (sndcp_data->sua->ll_data_q_read ==
          sndcp_data->sua->ll_data_q_write) {
        if (sndcp_data->sua->cia_state == CIA_IDLE) {
          sua_next_sn_data_req(ll_ready_ind->sapi);
        }
      }
      SET_STATE(SUA, SUA_LLC_RECEPTIVE_SUSPEND);
      break;
    case SUA_LLC_RECEPTIVE_SUSPEND:
      break;
    case SUA_LLC_NOT_RECEPTIVE:
      /*
       * Is queue with outgoing LL_DATA_REQs empty?
       */
      if (sndcp_data->sua->ll_data_q_read ==
          sndcp_data->sua->ll_data_q_write) {
        SET_STATE(SUA, SUA_LLC_RECEPTIVE);
        if (sndcp_data->sua->cia_state == CIA_IDLE) {
          sua_next_sn_data_req(ll_ready_ind->sapi);
        }
      } else { /* sndcp_data->sua.ll_data_q is not empty */
        /*
         * Send next ll_data_req from queue.
         */
        T_LL_DATA_REQ* ll_data_req = 
          sndcp_data->sua->ll_data_q[sndcp_data->sua->ll_data_q_read];
        
        UBYTE ll_data_sapi    = ll_data_req->sapi;
        UBYTE ll_data_seg_pos = ll_data_req->seg_pos;
        UBYTE ll_data_nsapi   = sua_get_nsapi(ll_data_req);

        sndcp_data->sua->ll_data_q[sndcp_data->sua->ll_data_q_read] = NULL;
        sndcp_data->sua->ll_data_q_read =
          (sndcp_data->sua->ll_data_q_read + 1) % SNDCP_SEGMENT_NUMBERS_ACK;

        PSEND (hCommLLC, ll_data_req);

        if ((ll_data_seg_pos & SEG_POS_LAST) > 0) {
          sig_sua_nu_ready_ind( ll_data_nsapi );
          sua_next_sn_data_req( ll_data_sapi );
          sndcp_data->sua->cia_state = CIA_IDLE;
        }


      } /* sndcp_data->sua.ll_data_q is not empty */
      break;
    case SUA_LLC_RECEPTIVE:
      break;
    default:
      TRACE_ERROR( "LL_READY_IND unexpected" );
      break;
  }
  if (ll_ready_ind != NULL) {
    PFREE (ll_ready_ind);
  }

} /* su_ll_ready_ind() */
#endif /* _SNDCP_DTI_2_ */