test_rrc.c

This a framework to test new ideas in transmission technology. Actual development is a LDPC-coder in

/***************************************************************************
              rrc.c  -  SRadio testing of RRC
                            -------------------
    begin                :  2002
    authors              :  Linus Gasser
    emails               :  [e-mail]
 ***************************************************************************/

/***************************************************************************
                                 Changes
                                 -------
 date - name - description
 02-10-16 - ineiti- begin
 04/03/03 - ineiti - added a small description
 
 **************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

char desc[] =
"Description:\n"
"Makes a small chain that sends some signal over the first\n"
"slot of the STFA, so that one can have a look whether the\n"
"stm-rf cards are working.\n\n";

#include "system.h"
#include "spc.h"
#include "antenna.h"
#include "std.h"
#include "stfa.h"

#define DBG_LVL 4
#define ANTENNA 0

swr_sdb_id stfa, rrc;
pthread_mutex_t mutex_here;
struct chain_t *test;

int count, size;
#define COUNT_MAX 8196
SYMBOL_MMX *buf;


void *start_it( void *arg ) {
  swr_sdb_id rand;

  test = swr_chain_create( NEW_SPC_VAR( "random", rand ),
                           NEW_SPC( "mapper" ),
                           NEW_SPC_VAR( "rrc", rrc ),
                           NEW_SPC_VAR( "stfa", stfa ),
			   CHAIN_END );

  PR( "Setting up STFA\n" );
  swr_stfa_notice_sdb( stfa, 0, rand );
  size = swr_sdb_get_struct( rrc )->port_in[0].size;
  buf = swr_sdb_get_struct( rrc )->port_in[0].data;
  swr_ant_set_gains( ANTENNA, 0, 0 );
  count = COUNT_MAX - 1;

  // And send some slots...
  PR( "Send some slots\n" );
  swr_stfa_go( stfa );

  while ( count < COUNT_MAX ) {
    PR( "Going on and on and on\n" );
    count ++;
    usleep( 500000 );
  }

  swr_stfa_stop( stfa );
  return 0;
}

swr_spc_id_t cdb_id;
struct thread start;

/**
 * This function is called upon "insmod" and is used to register the
 * different parts of the module to the SPM.
 */
int um_module_init(void) {

  PR_CL( desc );
  if ( swr_thread_init( &start, start_it, NULL ) ) {
    goto rrc_no_thread;
  }
  return 0;

rrc_no_thread:
  PR_DBG( 0, "Couldn't init thread\n" );
  return -1;
}

void um_module_exit( void ) {
  usleep( 1000000 );
  count = COUNT_MAX;

  swr_thread_free( &start, NULL );
  PR( "deleting cdbs and sdbs\n" );
  swr_chain_destroy( test );
  PR( "finished\n" );
}


module_init( um_module_init );
module_exit( um_module_exit );