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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface 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 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
*******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include "TLVEncoder.h"
#include "TLVDecoder.h"
#include "DrxParameter.h"
int decode_drx_parameter(DrxParameter *drxparameter, uint8_t iei, uint8_t *buffer, uint32_t len)
{
int decoded = 0;
if (iei > 0) {
CHECK_IEI_DECODER(iei, *buffer);
decoded++;
}
drxparameter->splitpgcyclecode = *(buffer + decoded);
decoded++;
drxparameter->cnspecificdrxcyclelengthcoefficientanddrxvaluefors1mode = (*(buffer + decoded) >> 4) & 0xf;
drxparameter->splitonccch = (*(buffer + decoded) >> 3) & 0x1;
drxparameter->nondrxtimer = *(buffer + decoded) & 0x7;
decoded++;
#if defined (NAS_DEBUG)
dump_drx_parameter_xml(drxparameter, iei);
#endif
return decoded;
}
int encode_drx_parameter(DrxParameter *drxparameter, uint8_t iei, uint8_t *buffer, uint32_t len)
{
uint32_t encoded = 0;
/* Checking IEI and pointer */
CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, DRX_PARAMETER_MINIMUM_LENGTH, len);
#if defined (NAS_DEBUG)
dump_drx_parameter_xml(drxparameter, iei);
#endif
if (iei > 0) {
*buffer = iei;
encoded++;
}
*(buffer + encoded) = drxparameter->splitpgcyclecode;
encoded++;
*(buffer + encoded) = 0x00 | ((drxparameter->cnspecificdrxcyclelengthcoefficientanddrxvaluefors1mode & 0xf) << 4) |
((drxparameter->splitonccch & 0x1) << 3) |
(drxparameter->nondrxtimer & 0x7);
encoded++;
return encoded;
}
void dump_drx_parameter_xml(DrxParameter *drxparameter, uint8_t iei)
{
printf("<Drx Parameter>\n");
if (iei > 0)
/* Don't display IEI if = 0 */
printf(" <IEI>0x%X</IEI>\n", iei);
printf(" <SPLIT PG CYCLE CODE>%u</SPLIT PG CYCLE CODE>\n", drxparameter->splitpgcyclecode);
printf(" <CN specific DRX cycle length coefficient and DRX value for S1 mode>%u</CN specific DRX cycle length coefficient and DRX value for S1 mode>\n",
drxparameter->cnspecificdrxcyclelengthcoefficientanddrxvaluefors1mode);
printf(" <SPLIT on CCCH>%u</SPLIT on CCCH>\n", drxparameter->splitonccch);
printf(" <non DRX timer>%u</non DRX timer>\n", drxparameter->nondrxtimer);
printf("</Drx Parameter>\n");
}