/*******************************************************************************
**
** Function llcp_util_parse_cc
**
** Description Parse CC PDU
**
** Returns tLLCP_STATUS
**
*******************************************************************************/
tLLCP_STATUS llcp_util_parse_cc (UINT8 *p_bytes, UINT16 length, UINT16 *p_miu, UINT8 *p_rw)
{
UINT8 param_type, param_len, *p = p_bytes;
*p_miu = LLCP_DEFAULT_MIU;
*p_rw = LLCP_DEFAULT_RW;
while (length)
{
BE_STREAM_TO_UINT8 (param_type, p);
length--;
switch (param_type)
{
case LLCP_MIUX_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
BE_STREAM_TO_UINT16 ((*p_miu), p);
(*p_miu) &= LLCP_MIUX_MASK;
(*p_miu) += LLCP_DEFAULT_MIU;
LLCP_TRACE_DEBUG1 ("llcp_util_parse_cc (): LLCP_MIUX_TYPE:%d", *p_miu);
break;
case LLCP_RW_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
BE_STREAM_TO_UINT8 ((*p_rw), p);
(*p_rw) &= 0x0F;
LLCP_TRACE_DEBUG1 ("llcp_util_parse_cc (): LLCP_RW_TYPE:%d", *p_rw);
break;
default:
LLCP_TRACE_ERROR1 ("llcp_util_parse_cc (): Unexpected type 0x%x", param_type);
BE_STREAM_TO_UINT8 (param_len, p);
p += param_len;
break;
}
if (length >= param_len + 1)
length -= param_len + 1;
else
{
LLCP_TRACE_ERROR0 ("llcp_util_parse_cc (): Bad LTV's");
return LLCP_STATUS_FAIL;
}
}
return LLCP_STATUS_SUCCESS;
}
/*******************************************************************************
**
** Function llcp_process_timeout
**
** Description This function is called when an LLCP-related timeout occurs
**
** Returns void
**
*******************************************************************************/
void llcp_process_timeout (TIMER_LIST_ENT *p_tle)
{
UINT8 reason;
LLCP_TRACE_DEBUG1 ("llcp_process_timeout: event=%d", p_tle->event);
switch (p_tle->event)
{
case NFC_TTYPE_LLCP_LINK_MANAGER:
/* Link timeout or Symm timeout */
llcp_link_process_link_timeout ();
break;
case NFC_TTYPE_LLCP_LINK_INACT:
/* inactivity timeout */
llcp_link_deactivate (LLCP_LINK_LOCAL_INITIATED);
break;
case NFC_TTYPE_LLCP_DATA_LINK:
reason = LLCP_SAP_DISCONNECT_REASON_TIMEOUT;
llcp_dlsm_execute ((tLLCP_DLCB *) (p_tle->param), LLCP_DLC_EVENT_TIMEOUT, &reason);
break;
case NFC_TTYPE_LLCP_DELAY_FIRST_PDU:
llcp_link_check_send_data ();
break;
default:
break;
}
}
/*******************************************************************************
**
** Function llcp_util_deallocate_data_link
**
** Description Deallocate tLLCP_DLCB
**
** Returns void
**
******************************************************************************/
void llcp_util_deallocate_data_link (tLLCP_DLCB *p_dlcb)
{
if (p_dlcb)
{
LLCP_TRACE_DEBUG1 ("llcp_util_deallocate_data_link (): local_sap = 0x%x", p_dlcb->local_sap);
if (p_dlcb->state != LLCP_DLC_STATE_IDLE)
{
nfc_stop_quick_timer (&p_dlcb->timer);
llcp_dlc_flush_q (p_dlcb);
p_dlcb->state = LLCP_DLC_STATE_IDLE;
if (llcp_cb.num_data_link_connection > 0)
{
llcp_cb.num_data_link_connection--;
}
LLCP_TRACE_DEBUG1 ("llcp_util_deallocate_data_link (): num_data_link_connection = %d", llcp_cb.num_data_link_connection);
}
}
}
/*******************************************************************************
**
** Function llcp_util_parse_connect
**
** Description Parse CONNECT PDU
**
** Returns tLLCP_STATUS
**
*******************************************************************************/
tLLCP_STATUS llcp_util_parse_connect (UINT8 *p_bytes, UINT16 length, tLLCP_CONNECTION_PARAMS *p_params)
{
UINT8 param_type, param_len, *p = p_bytes;
p_params->miu = LLCP_DEFAULT_MIU;
p_params->rw = LLCP_DEFAULT_RW;
p_params->sn[0] = 0;
while (length)
{
BE_STREAM_TO_UINT8 (param_type, p);
length--;
switch (param_type)
{
case LLCP_MIUX_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
BE_STREAM_TO_UINT16 (p_params->miu, p);
p_params->miu &= LLCP_MIUX_MASK;
p_params->miu += LLCP_DEFAULT_MIU;
LLCP_TRACE_DEBUG1 ("llcp_util_parse_connect (): LLCP_MIUX_TYPE:%d", p_params->miu);
break;
case LLCP_RW_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
BE_STREAM_TO_UINT8 (p_params->rw, p);
p_params->rw &= 0x0F;
LLCP_TRACE_DEBUG1 ("llcp_util_parse_connect (): LLCP_RW_TYPE:%d", p_params->rw);
break;
case LLCP_SN_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
if (param_len <= LLCP_MAX_SN_LEN)
{
memcpy (p_params->sn, p, param_len);
p_params->sn[param_len] = 0;
}
else
{
memcpy (p_params->sn, p, LLCP_MAX_SN_LEN);
p_params->sn[LLCP_MAX_SN_LEN] = 0;
}
p += param_len;
LLCP_TRACE_DEBUG1 ("llcp_util_parse_connect (): LLCP_SN_TYPE:<%s>", p_params->sn);
break;
default:
LLCP_TRACE_ERROR1 ("llcp_util_parse_connect (): Unexpected type 0x%x", param_type);
BE_STREAM_TO_UINT8 (param_len, p);
p += param_len;
break;
}
/* check remaining lengh */
if (length >= param_len + 1)
{
length -= param_len + 1;
}
else
{
LLCP_TRACE_ERROR0 ("llcp_util_parse_connect (): Bad LTV's");
return LLCP_STATUS_FAIL;
}
}
return LLCP_STATUS_SUCCESS;
}
/*******************************************************************************
**
** Function llcp_util_parse_link_params
**
** Description Parse LLCP Link parameters
**
** Returns TRUE if success
**
*******************************************************************************/
BOOLEAN llcp_util_parse_link_params (UINT16 length, UINT8 *p_bytes)
{
UINT8 param_type, param_len, *p = p_bytes;
while (length)
{
BE_STREAM_TO_UINT8 (param_type, p);
length--;
switch (param_type)
{
case LLCP_VERSION_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
BE_STREAM_TO_UINT8 (llcp_cb.lcb.peer_version, p);
LLCP_TRACE_DEBUG1 ("Peer Version - 0x%02X", llcp_cb.lcb.peer_version);
break;
case LLCP_MIUX_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
BE_STREAM_TO_UINT16 (llcp_cb.lcb.peer_miu, p);
llcp_cb.lcb.peer_miu &= LLCP_MIUX_MASK;
llcp_cb.lcb.peer_miu += LLCP_DEFAULT_MIU;
LLCP_TRACE_DEBUG1 ("Peer MIU - %d bytes", llcp_cb.lcb.peer_miu);
break;
case LLCP_WKS_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
BE_STREAM_TO_UINT16 (llcp_cb.lcb.peer_wks, p);
LLCP_TRACE_DEBUG1 ("Peer WKS - 0x%04X", llcp_cb.lcb.peer_wks);
break;
case LLCP_LTO_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
BE_STREAM_TO_UINT8 (llcp_cb.lcb.peer_lto, p);
llcp_cb.lcb.peer_lto *= LLCP_LTO_UNIT; /* 10ms unit */
LLCP_TRACE_DEBUG1 ("Peer LTO - %d ms", llcp_cb.lcb.peer_lto);
break;
case LLCP_OPT_TYPE:
BE_STREAM_TO_UINT8 (param_len, p);
BE_STREAM_TO_UINT8 (llcp_cb.lcb.peer_opt, p);
LLCP_TRACE_DEBUG1 ("Peer OPT - 0x%02X", llcp_cb.lcb.peer_opt);
break;
default:
LLCP_TRACE_ERROR1 ("llcp_util_parse_link_params (): Unexpected type 0x%x", param_type);
BE_STREAM_TO_UINT8 (param_len, p);
p += param_len;
break;
}
if (length >= param_len + 1)
length -= param_len + 1;
else
{
LLCP_TRACE_ERROR0 ("llcp_util_parse_link_params (): Bad LTV's");
return (FALSE);
}
}
return (TRUE);
}
