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pev_cm_start_atten_char.c
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/*====================================================================*
*
* Copyright (c) 2013 Qualcomm Atheros, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted (subject to the limitations
* in the disclaimer below) provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* * Neither the name of Qualcomm Atheros nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
* GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
* COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*--------------------------------------------------------------------*/
/*====================================================================*
*
* signed pev_cm_start_atten_char (struct session * session, struct channel * channel, struct message * message);
*
* slac.h
*
* the PEV-HLE broadcasts a CM_START_ATTEN_CHAR.IND to initiate a
* SLAC session; we broadcast three times per HPGP specification;
*
*--------------------------------------------------------------------*/
#ifndef PEV_CM_START_ATTEN_CHAR_SOURCE
#define PEV_CM_START_ATTEN_CHAR_SOURCE
#include <sys/time.h>
#include <memory.h>
#include <errno.h>
#include "../tools/types.h"
#include "../tools/error.h"
#include "../ether/channel.h"
#include "../iso15118/slac.h"
signed pev_cm_start_atten_char (struct session * session, struct channel * channel, struct message * message)
{
struct cm_start_atten_char_indicate * indicate = (struct cm_start_atten_char_indicate *) (message);
slac_debug (session, 0, __func__, "--> CM_START_ATTEN_CHAR.IND");
memset (message, 0, sizeof (* message));
EthernetHeader (& indicate->ethernet, session->MSOUND_TARGET, channel->host, channel->type);
HomePlugHeader1 (& indicate->homeplug, HOMEPLUG_MMV, (CM_START_ATTEN_CHAR | MMTYPE_IND));
indicate->APPLICATION_TYPE = session->APPLICATION_TYPE;
indicate->SECURITY_TYPE = session->SECURITY_TYPE;
indicate->ACVarField.NUM_SOUNDS = session->NUM_SOUNDS;
indicate->ACVarField.TIME_OUT = session->TIME_OUT;
indicate->ACVarField.RESP_TYPE = session->RESP_TYPE;
memcpy (indicate->ACVarField.FORWARDING_STA, session->FORWARDING_STA, sizeof (indicate->ACVarField.FORWARDING_STA));
memcpy (indicate->ACVarField.RunID, session->RunID, sizeof (indicate->ACVarField.RunID));
if (sendmessage (channel, message, (ETHER_MIN_LEN - ETHER_CRC_LEN)) <= 0)
{
return (slac_debug (session, 1, __func__, CHANNEL_CANTSEND));
}
#if 0
/*
* the GreenPHY spec says to send CM_START_ATTEN.IND three times to ensure
* that is is received;
*/
if (sendmessage (channel, message, (ETHER_MIN_LEN - ETHER_CRC_LEN)) <= 0)
{
return (slac_debug (session, 1, __func__, CHANNEL_CANTSEND));
}
if (sendmessage (channel, message, (ETHER_MIN_LEN - ETHER_CRC_LEN)) <= 0)
{
return (slac_debug (session, 1, __func__, CHANNEL_CANTSEND));
}
#endif
return (0);
}
#endif
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