/******************************************************************************
*
* Copyright (C) 2010-2014 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* This is the main implementation file for the NFA P2P.
*
******************************************************************************/
#include <string>
#include <android-base/stringprintf.h>
#include <base/logging.h>
#include "llcp_api.h"
#include "nfa_dm_int.h"
#include "nfa_p2p_int.h"
using android::base::StringPrintf;
extern bool nfc_debug_enabled;
/*****************************************************************************
** Global Variables
*****************************************************************************/
/* system manager control block definition */
tNFA_P2P_CB nfa_p2p_cb;
/*****************************************************************************
** Static Functions
*****************************************************************************/
/* event handler function type */
static bool nfa_p2p_evt_hdlr(NFC_HDR* p_msg);
/* disable function type */
static void nfa_p2p_sys_disable(void);
static void nfa_p2p_update_active_listen(void);
/* debug functions type */
static std::string nfa_p2p_llcp_state_code(tNFA_P2P_LLCP_STATE state_code);
static std::string nfa_p2p_evt_code(uint16_t evt_code);
/*****************************************************************************
** Constants
*****************************************************************************/
/* timeout to restore active listen mode if no RF activation on passive mode */
#define NFA_P2P_RESTORE_ACTIVE_LISTEN_TIMEOUT 5000
static const tNFA_SYS_REG nfa_p2p_sys_reg = {NULL, nfa_p2p_evt_hdlr,
nfa_p2p_sys_disable, NULL};
#define NFA_P2P_NUM_ACTIONS (NFA_P2P_LAST_EVT & 0x00ff)
/* type for action functions */
typedef bool (*tNFA_P2P_ACTION)(tNFA_P2P_MSG* p_data);
/* action function list */
const tNFA_P2P_ACTION nfa_p2p_action[] = {
nfa_p2p_reg_server, /* NFA_P2P_API_REG_SERVER_EVT */
nfa_p2p_reg_client, /* NFA_P2P_API_REG_CLIENT_EVT */
nfa_p2p_dereg, /* NFA_P2P_API_DEREG_EVT */
nfa_p2p_accept_connection, /* NFA_P2P_API_ACCEPT_CONN_EVT */
nfa_p2p_reject_connection, /* NFA_P2P_API_REJECT_CONN_EVT */
nfa_p2p_disconnect, /* NFA_P2P_API_DISCONNECT_EVT */
nfa_p2p_create_data_link_connection, /* NFA_P2P_API_CONNECT_EVT */
nfa_p2p_send_ui, /* NFA_P2P_API_SEND_UI_EVT */
nfa_p2p_send_data, /* NFA_P2P_API_SEND_DATA_EVT */
nfa_p2p_set_local_busy, /* NFA_P2P_API_SET_LOCAL_BUSY_EVT */
nfa_p2p_get_link_info, /* NFA_P2P_API_GET_LINK_INFO_EVT */
nfa_p2p_get_remote_sap, /* NFA_P2P_API_GET_REMOTE_SAP_EVT */
nfa_p2p_set_llcp_cfg, /* NFA_P2P_API_SET_LLCP_CFG_EVT */
nfa_p2p_restart_rf_discovery /* NFA_P2P_INT_RESTART_RF_DISC_EVT */
};
/*******************************************************************************
**
** Function nfa_p2p_discovery_cback
**
** Description Processing event from discovery callback for listening
**
**
** Returns None
**
*******************************************************************************/
void nfa_p2p_discovery_cback(tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER* p_data) {
tNFA_CONN_EVT_DATA evt_data;
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("event:0x%02X", event);
switch (event) {
case NFA_DM_RF_DISC_START_EVT:
if (p_data->status == NFC_STATUS_OK) {
nfa_p2p_cb.llcp_state = NFA_P2P_LLCP_STATE_LISTENING;
nfa_p2p_cb.rf_disc_state = NFA_DM_RFST_DISCOVERY;
}
break;
case NFA_DM_RF_DISC_ACTIVATED_EVT:
nfa_p2p_cb.rf_disc_state = NFA_DM_RFST_LISTEN_ACTIVE;
/* notify NFC link activation */
memcpy(&(evt_data.activated.activate_ntf), &(p_data->activate),
sizeof(tNFC_ACTIVATE_DEVT));
nfa_dm_conn_cback_event_notify(NFA_ACTIVATED_EVT, &evt_data);
if ((p_data->activate.protocol == NFC_PROTOCOL_NFC_DEP) &&
(p_data->activate.intf_param.type == NFC_INTERFACE_NFC_DEP)) {
nfa_p2p_activate_llcp(p_data);
/* stop timer not to deactivate LLCP link on passive mode */
nfa_sys_stop_timer(&nfa_p2p_cb.active_listen_restore_timer);
}
break;
case NFA_DM_RF_DISC_DEACTIVATED_EVT:
if ((nfa_p2p_cb.rf_disc_state != NFA_DM_RFST_LISTEN_ACTIVE) &&
(nfa_p2p_cb.rf_disc_state != NFA_DM_RFST_LISTEN_SLEEP)) {
/* this is not for P2P listen
** DM broadcasts deactivaiton event in listen sleep state.
*/
break;
}
/* notify deactivation */
if ((p_data->deactivate.type == NFC_DEACTIVATE_TYPE_SLEEP) ||
(p_data->deactivate.type == NFC_DEACTIVATE_TYPE_SLEEP_AF)) {
nfa_p2p_cb.rf_disc_state = NFA_DM_RFST_LISTEN_SLEEP;
evt_data.deactivated.type = NFA_DEACTIVATE_TYPE_SLEEP;
} else {
nfa_p2p_cb.rf_disc_state = NFA_DM_RFST_DISCOVERY;
evt_data.deactivated.type = NFA_DEACTIVATE_TYPE_IDLE;
}
nfa_dm_conn_cback_event_notify(NFA_DEACTIVATED_EVT, &evt_data);
break;
default:
LOG(ERROR) << StringPrintf("Unexpected event");
break;
}
}
/*******************************************************************************
**
** Function nfa_p2p_update_active_listen_timeout_cback
**
** Description Timeout while waiting for passive mode activation
**
** Returns void
**
*******************************************************************************/
static void nfa_p2p_update_active_listen_timeout_cback(__attribute__((unused))
TIMER_LIST_ENT* p_tle) {
LOG(ERROR) << __func__;
/* restore active listen mode */
nfa_p2p_update_active_listen();
}
/*******************************************************************************
**
** Function nfa_p2p_update_active_listen
**
** Description Remove active listen mode temporarily or restore it
**
**
** Returns None
**
*******************************************************************************/
static void nfa_p2p_update_active_listen(void) {
tNFA_DM_DISC_TECH_PROTO_MASK p2p_listen_mask = 0;
NFC_HDR* p_msg;
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("listen_tech_mask_to_restore:0x%x",
nfa_p2p_cb.listen_tech_mask_to_restore);
/* if active listen mode was removed temporarily */
if (nfa_p2p_cb.listen_tech_mask_to_restore) {
/* restore listen technologies */
nfa_p2p_cb.listen_tech_mask = nfa_p2p_cb.listen_tech_mask_to_restore;
nfa_p2p_cb.listen_tech_mask_to_restore = 0;
nfa_sys_stop_timer(&nfa_p2p_cb.active_listen_restore_timer);
} else {
/* start timer in case of no passive activation */
nfa_p2p_cb.active_listen_restore_timer.p_cback =
(TIMER_CBACK*)nfa_p2p_update_active_listen_timeout_cback;
nfa_sys_start_timer(&nfa_p2p_cb.active_listen_restore_timer, 0,
NFA_P2P_RESTORE_ACTIVE_LISTEN_TIMEOUT);
/* save listen techonologies */
nfa_p2p_cb.listen_tech_mask_to_restore = nfa_p2p_cb.listen_tech_mask;
/* remove active listen mode */
if (NFC_GetNCIVersion() == NCI_VERSION_2_0) {
nfa_p2p_cb.listen_tech_mask &= ~(NFA_TECHNOLOGY_MASK_ACTIVE);
} else {
nfa_p2p_cb.listen_tech_mask &=
~(NFA_TECHNOLOGY_MASK_A_ACTIVE | NFA_TECHNOLOGY_MASK_F_ACTIVE);
}
}
if (nfa_p2p_cb.dm_disc_handle != NFA_HANDLE_INVALID) {
nfa_dm_delete_rf_discover(nfa_p2p_cb.dm_disc_handle);
nfa_p2p_cb.dm_disc_handle = NFA_HANDLE_INVALID;
}
/* collect listen technologies with NFC-DEP protocol */
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_A)
p2p_listen_mask |= NFA_DM_DISC_MASK_LA_NFC_DEP;
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_F)
p2p_listen_mask |= NFA_DM_DISC_MASK_LF_NFC_DEP;
if (NFC_GetNCIVersion() == NCI_VERSION_2_0) {
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_ACTIVE)
p2p_listen_mask |= NFA_DM_DISC_MASK_LACM_NFC_DEP;
} else {
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_A_ACTIVE)
p2p_listen_mask |= NFA_DM_DISC_MASK_LAA_NFC_DEP;
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_F_ACTIVE)
p2p_listen_mask |= NFA_DM_DISC_MASK_LFA_NFC_DEP;
}
/* For P2P mode(Default DTA mode) open Raw channel to bypass LLCP layer. For
* LLCP DTA mode activate LLCP Bypassing LLCP is handled in
* nfa_dm_poll_disc_cback */
if (appl_dta_mode_flag == 1 &&
((nfa_dm_cb.eDtaMode & 0x0F) == NFA_DTA_DEFAULT_MODE)) {
// Configure listen technologies and protocols and register callback to DTA
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
"%s: DTA mode:Registering nfa_dm_poll_disc_cback to avoid LLCP in P2P",
__func__);
nfa_p2p_cb.dm_disc_handle =
nfa_dm_add_rf_discover(p2p_listen_mask, NFA_DM_DISC_HOST_ID_DH,
nfa_dm_poll_disc_cback_dta_wrapper);
} else {
/* Configure listen technologies and protocols and register callback to NFA
* DM discovery */
nfa_p2p_cb.dm_disc_handle = nfa_dm_add_rf_discover(
p2p_listen_mask, NFA_DM_DISC_HOST_ID_DH, nfa_p2p_discovery_cback);
}
/* restart RF discovery to update RF technologies */
p_msg = (NFC_HDR*)GKI_getbuf(sizeof(NFC_HDR));
if (p_msg != NULL) {
p_msg->event = NFA_P2P_INT_RESTART_RF_DISC_EVT;
nfa_sys_sendmsg(p_msg);
}
}
/*******************************************************************************
**
** Function nfa_p2p_llcp_link_cback
**
** Description Processing event from LLCP link management callback
**
**
** Returns None
**
*******************************************************************************/
void nfa_p2p_llcp_link_cback(uint8_t event, uint8_t reason) {
tNFA_LLCP_ACTIVATED llcp_activated;
tNFA_LLCP_DEACTIVATED llcp_deactivated;
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("event:0x%x, reason:0x%x", event, reason);
if (event == LLCP_LINK_ACTIVATION_COMPLETE_EVT) {
LLCP_GetLinkMIU(&nfa_p2p_cb.local_link_miu, &nfa_p2p_cb.remote_link_miu);
nfa_p2p_cb.llcp_state = NFA_P2P_LLCP_STATE_ACTIVATED;
if (nfa_p2p_cb.is_initiator) {
/* notify NFA DM to send Activate Event to applicaiton with status */
nfa_dm_notify_activation_status(NFA_STATUS_OK, NULL);
}
llcp_activated.is_initiator = nfa_p2p_cb.is_initiator;
llcp_activated.local_link_miu = nfa_p2p_cb.local_link_miu;
llcp_activated.remote_link_miu = nfa_p2p_cb.remote_link_miu;
llcp_activated.remote_lsc = LLCP_GetRemoteLSC();
llcp_activated.remote_wks = LLCP_GetRemoteWKS();
llcp_activated.remote_version = LLCP_GetRemoteVersion();
tNFA_CONN_EVT_DATA nfa_conn_evt_data;
nfa_conn_evt_data.llcp_activated = llcp_activated;
nfa_dm_act_conn_cback_notify(NFA_LLCP_ACTIVATED_EVT, &nfa_conn_evt_data);
} else if (event == LLCP_LINK_ACTIVATION_FAILED_EVT) {
nfa_p2p_cb.llcp_state = NFA_P2P_LLCP_STATE_IDLE;
if (nfa_p2p_cb.is_initiator) {
/* notify NFA DM to send Activate Event to applicaiton with status */
nfa_dm_notify_activation_status(NFA_STATUS_FAILED, NULL);
}
nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_DISCOVERY);
} else if (event == LLCP_LINK_FIRST_PACKET_RECEIVED_EVT) {
nfa_dm_act_conn_cback_notify(NFA_LLCP_FIRST_PACKET_RECEIVED_EVT, NULL);
} else /* LLCP_LINK_DEACTIVATED_EVT */
{
nfa_p2p_cb.llcp_state = NFA_P2P_LLCP_STATE_IDLE;
/* if got RF link loss without any rx LLC PDU */
if (reason == LLCP_LINK_RF_LINK_LOSS_NO_RX_LLC) {
/* if it was active listen mode */
if ((nfa_p2p_cb.is_active_mode) && (!nfa_p2p_cb.is_initiator)) {
/* if it didn't retry without active listen mode and passive mode is
* available */
if ((nfa_p2p_cb.listen_tech_mask_to_restore == 0x00) &&
(nfa_p2p_cb.listen_tech_mask &
(NFA_TECHNOLOGY_MASK_A | NFA_TECHNOLOGY_MASK_F))) {
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("Retry without active listen mode");
/* retry without active listen mode */
nfa_p2p_update_active_listen();
}
} else if (nfa_p2p_cb.listen_tech_mask_to_restore) {
nfa_sys_start_timer(&nfa_p2p_cb.active_listen_restore_timer, 0,
NFA_P2P_RESTORE_ACTIVE_LISTEN_TIMEOUT);
}
reason = LLCP_LINK_RF_LINK_LOSS_ERR;
} else {
if (nfa_p2p_cb.listen_tech_mask_to_restore) {
/* restore active listen mode */
nfa_p2p_update_active_listen();
}
}
llcp_deactivated.reason = reason;
tNFA_CONN_EVT_DATA nfa_conn_evt_data;
nfa_conn_evt_data.llcp_deactivated = llcp_deactivated;
nfa_dm_act_conn_cback_notify(NFA_LLCP_DEACTIVATED_EVT, &nfa_conn_evt_data);
if (reason != LLCP_LINK_RF_LINK_LOSS_ERR) /* if NFC link is still up */
{
if (nfa_p2p_cb.is_initiator) {
/*For LLCP DTA test, Deactivate to Sleep is needed to send DSL_REQ*/
if (appl_dta_mode_flag == 1 &&
((nfa_dm_cb.eDtaMode & 0x0F) == NFA_DTA_LLCP_MODE)) {
nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_SLEEP);
} else {
nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_DISCOVERY);
}
} else if ((nfa_p2p_cb.is_active_mode) && (reason == LLCP_LINK_TIMEOUT)) {
/*
** target needs to trun off RF in case of receiving invalid
** frame from initiator
*/
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("Got LLCP_LINK_TIMEOUT in active mode on target");
nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_DISCOVERY);
}
}
}
}
/*******************************************************************************
**
** Function nfa_p2p_activate_llcp
**
** Description Activate LLCP link
**
**
** Returns None
**
*******************************************************************************/
void nfa_p2p_activate_llcp(tNFC_DISCOVER* p_data) {
tLLCP_ACTIVATE_CONFIG config;
DLOG_IF(INFO, nfc_debug_enabled) << __func__;
if ((p_data->activate.rf_tech_param.mode == NFC_DISCOVERY_TYPE_POLL_A) ||
(p_data->activate.rf_tech_param.mode == NFC_DISCOVERY_TYPE_POLL_F)) {
config.is_initiator = true;
} else {
config.is_initiator = false;
}
if (NFC_GetNCIVersion() == NCI_VERSION_2_0) {
if (p_data->activate.rf_tech_param.mode == NFC_DISCOVERY_TYPE_POLL_ACTIVE) {
config.is_initiator = true;
}
} else {
if ((p_data->activate.rf_tech_param.mode ==
NFC_DISCOVERY_TYPE_POLL_A_ACTIVE) ||
(p_data->activate.rf_tech_param.mode ==
NFC_DISCOVERY_TYPE_POLL_F_ACTIVE)) {
config.is_initiator = true;
}
}
if (NFC_GetNCIVersion() == NCI_VERSION_2_0) {
if ((p_data->activate.rf_tech_param.mode ==
NFC_DISCOVERY_TYPE_POLL_ACTIVE) ||
(p_data->activate.rf_tech_param.mode ==
NFC_DISCOVERY_TYPE_LISTEN_ACTIVE)) {
nfa_p2p_cb.is_active_mode = true;
} else {
nfa_p2p_cb.is_active_mode = false;
}
} else {
if ((p_data->activate.rf_tech_param.mode ==
NFC_DISCOVERY_TYPE_POLL_A_ACTIVE) ||
(p_data->activate.rf_tech_param.mode ==
NFC_DISCOVERY_TYPE_POLL_F_ACTIVE) ||
(p_data->activate.rf_tech_param.mode ==
NFC_DISCOVERY_TYPE_LISTEN_A_ACTIVE) ||
(p_data->activate.rf_tech_param.mode ==
NFC_DISCOVERY_TYPE_LISTEN_F_ACTIVE)) {
nfa_p2p_cb.is_active_mode = true;
} else {
nfa_p2p_cb.is_active_mode = false;
}
}
nfa_p2p_cb.is_initiator = config.is_initiator;
config.max_payload_size =
p_data->activate.intf_param.intf_param.pa_nfc.max_payload_size;
config.waiting_time =
p_data->activate.intf_param.intf_param.pa_nfc.waiting_time;
config.p_gen_bytes = p_data->activate.intf_param.intf_param.pa_nfc.gen_bytes;
config.gen_bytes_len =
p_data->activate.intf_param.intf_param.pa_nfc.gen_bytes_len;
LLCP_ActivateLink(config, nfa_p2p_llcp_link_cback);
}
/*******************************************************************************
**
** Function nfa_p2p_deactivate_llcp
**
** Description Deactivate LLCP link
**
**
** Returns None
**
*******************************************************************************/
void nfa_p2p_deactivate_llcp(void) {
DLOG_IF(INFO, nfc_debug_enabled) << __func__;
LLCP_DeactivateLink();
}
/*******************************************************************************
**
** Function nfa_p2p_init
**
** Description Initialize NFA P2P
**
**
** Returns None
**
*******************************************************************************/
void nfa_p2p_init(void) {
uint8_t xx;
DLOG_IF(INFO, nfc_debug_enabled) << __func__;
/* initialize control block */
memset(&nfa_p2p_cb, 0, sizeof(tNFA_P2P_CB));
nfa_p2p_cb.dm_disc_handle = NFA_HANDLE_INVALID;
for (xx = 0; xx < LLCP_MAX_SDP_TRANSAC; xx++) {
nfa_p2p_cb.sdp_cb[xx].local_sap = LLCP_INVALID_SAP;
}
/* register message handler on NFA SYS */
nfa_sys_register(NFA_ID_P2P, &nfa_p2p_sys_reg);
}
/*******************************************************************************
**
** Function nfa_p2p_sys_disable
**
** Description Deregister NFA P2P from NFA SYS/DM
**
**
** Returns None
**
*******************************************************************************/
static void nfa_p2p_sys_disable(void) {
DLOG_IF(INFO, nfc_debug_enabled) << __func__;
nfa_sys_stop_timer(&nfa_p2p_cb.active_listen_restore_timer);
/* deregister message handler on NFA SYS */
nfa_sys_deregister(NFA_ID_P2P);
}
/*******************************************************************************
**
** Function nfa_p2p_set_config
**
** Description Set General bytes and WT parameters for LLCP
**
**
** Returns void
**
*******************************************************************************/
void nfa_p2p_set_config(tNFA_DM_DISC_TECH_PROTO_MASK disc_mask) {
uint8_t wt, gen_bytes_len = LLCP_MAX_GEN_BYTES;
uint8_t params[LLCP_MAX_GEN_BYTES + 5], *p, length;
DLOG_IF(INFO, nfc_debug_enabled) << __func__;
LLCP_GetDiscoveryConfig(&wt, params + 2, &gen_bytes_len);
if (nfa_dm_is_p2p_paused()) {
gen_bytes_len = 0;
}
if ((disc_mask &
(NFA_DM_DISC_MASK_PA_NFC_DEP | NFA_DM_DISC_MASK_PF_NFC_DEP)) ||
((NFC_GetNCIVersion() == NCI_VERSION_2_0) &&
(disc_mask & NFA_DM_DISC_MASK_PACM_NFC_DEP)) ||
((NFC_GetNCIVersion() != NCI_VERSION_2_0) &&
(disc_mask &
(NFA_DM_DISC_MASK_PAA_NFC_DEP | NFA_DM_DISC_MASK_PFA_NFC_DEP)))) {
p = params;
UINT8_TO_BE_STREAM(p, NFC_PMID_ATR_REQ_GEN_BYTES);
UINT8_TO_BE_STREAM(p, gen_bytes_len);
p += gen_bytes_len;
length = gen_bytes_len + 2;
nfa_dm_check_set_config(length, params, false);
}
if ((disc_mask &
(NFA_DM_DISC_MASK_LA_NFC_DEP | NFA_DM_DISC_MASK_LF_NFC_DEP)) ||
((NFC_GetNCIVersion() == NCI_VERSION_2_0) &&
(disc_mask & NFA_DM_DISC_MASK_LACM_NFC_DEP)) ||
((NFC_GetNCIVersion() != NCI_VERSION_2_0) &&
(disc_mask &
(NFA_DM_DISC_MASK_LFA_NFC_DEP | NFA_DM_DISC_MASK_LAA_NFC_DEP)))) {
p = params;
UINT8_TO_BE_STREAM(p, NFC_PMID_ATR_RES_GEN_BYTES);
UINT8_TO_BE_STREAM(p, gen_bytes_len);
p += gen_bytes_len;
length = gen_bytes_len + 2;
UINT8_TO_BE_STREAM(p, NFC_PMID_WT);
UINT8_TO_BE_STREAM(p, NCI_PARAM_LEN_WT);
UINT8_TO_BE_STREAM(p, wt);
length += 3;
nfa_dm_check_set_config(length, params, false);
}
}
/*******************************************************************************
**
** Function nfa_p2p_enable_listening
**
** Description Configure listen technologies and protocols for LLCP
** If LLCP WKS is changed then LLCP Gen bytes will be updated.
**
** Returns void
**
*******************************************************************************/
void nfa_p2p_enable_listening(tNFA_SYS_ID sys_id, bool update_wks) {
tNFA_DM_DISC_TECH_PROTO_MASK p2p_listen_mask = 0;
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("sys_id = %d, update_wks = %d", sys_id, update_wks);
if (sys_id == NFA_ID_P2P)
nfa_p2p_cb.is_p2p_listening = true;
else if (sys_id == NFA_ID_SNEP)
nfa_p2p_cb.is_snep_listening = true;
if (nfa_p2p_cb.dm_disc_handle != NFA_HANDLE_INVALID) {
/* if need to update WKS in LLCP Gen bytes */
if (update_wks) {
/* update LLCP Gen Bytes */
nfa_p2p_set_config(NFA_DM_DISC_MASK_PA_NFC_DEP |
NFA_DM_DISC_MASK_LA_NFC_DEP);
}
return;
}
/* collect listen technologies with NFC-DEP protocol */
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_A)
p2p_listen_mask |= NFA_DM_DISC_MASK_LA_NFC_DEP;
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_F)
p2p_listen_mask |= NFA_DM_DISC_MASK_LF_NFC_DEP;
if (NFC_GetNCIVersion() == NCI_VERSION_2_0) {
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_ACTIVE)
p2p_listen_mask |= NFA_DM_DISC_MASK_LACM_NFC_DEP;
} else {
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_A_ACTIVE)
p2p_listen_mask |= NFA_DM_DISC_MASK_LAA_NFC_DEP;
if (nfa_p2p_cb.listen_tech_mask & NFA_TECHNOLOGY_MASK_F_ACTIVE)
p2p_listen_mask |= NFA_DM_DISC_MASK_LFA_NFC_DEP;
}
if (p2p_listen_mask) {
/* For P2P mode(Default DTA mode) open Raw channel to bypass LLCP layer.
* For LLCP DTA mode activate LLCP Bypassing LLCP is handled in
* nfa_dm_poll_disc_cback */
if (appl_dta_mode_flag == 1 &&
((nfa_dm_cb.eDtaMode & 0x0F) == NFA_DTA_DEFAULT_MODE)) {
/* Configure listen technologies and protocols and register callback to
* NFA DM discovery */
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
"%s: DTA mode:Registering nfa_dm_poll_disc_cback to avoid LLCP in "
"P2P",
__func__);
nfa_p2p_cb.dm_disc_handle =
nfa_dm_add_rf_discover(p2p_listen_mask, NFA_DM_DISC_HOST_ID_DH,
nfa_dm_poll_disc_cback_dta_wrapper);
} else {
/* Configure listen technologies and protocols and register callback to
* NFA DM discovery */
nfa_p2p_cb.dm_disc_handle = nfa_dm_add_rf_discover(
p2p_listen_mask, NFA_DM_DISC_HOST_ID_DH, nfa_p2p_discovery_cback);
}
}
}
/*******************************************************************************
**
** Function nfa_p2p_disable_listening
**
** Description Remove listen technologies and protocols for LLCP and
** deregister callback from NFA DM discovery if all of
** P2P/CHO/SNEP doesn't listen LLCP any more.
** If LLCP WKS is changed then ATR_RES will be updated.
**
** Returns void
**
*******************************************************************************/
void nfa_p2p_disable_listening(tNFA_SYS_ID sys_id, bool update_wks) {
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("sys_id = %d, update_wks = %d", sys_id, update_wks);
if (sys_id == NFA_ID_P2P)
nfa_p2p_cb.is_p2p_listening = false;
else if (sys_id == NFA_ID_SNEP)
nfa_p2p_cb.is_snep_listening = false;
if (nfa_p2p_cb.dm_disc_handle != NFA_HANDLE_INVALID) {
if ((nfa_p2p_cb.is_p2p_listening == false) &&
(nfa_p2p_cb.is_snep_listening == false)) {
nfa_p2p_cb.llcp_state = NFA_P2P_LLCP_STATE_IDLE;
nfa_p2p_cb.rf_disc_state = NFA_DM_RFST_IDLE;
nfa_dm_delete_rf_discover(nfa_p2p_cb.dm_disc_handle);
nfa_p2p_cb.dm_disc_handle = NFA_HANDLE_INVALID;
} else if (update_wks) {
/* update LLCP Gen Bytes */
nfa_p2p_set_config(NFA_DM_DISC_MASK_PA_NFC_DEP |
NFA_DM_DISC_MASK_LA_NFC_DEP);
}
}
}
/*******************************************************************************
**
** Function nfa_p2p_update_listen_tech
**
** Description Update P2P listen technologies. If there is change then
** restart or stop P2P listen.
**
** Returns void
**
*******************************************************************************/
void nfa_p2p_update_listen_tech(tNFA_TECHNOLOGY_MASK tech_mask) {
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("tech_mask = 0x%x", tech_mask);
if (nfa_p2p_cb.listen_tech_mask_to_restore) {
nfa_p2p_cb.listen_tech_mask_to_restore = 0;
nfa_sys_stop_timer(&nfa_p2p_cb.active_listen_restore_timer);
}
if (nfa_p2p_cb.listen_tech_mask != tech_mask) {
nfa_p2p_cb.listen_tech_mask = tech_mask;
if (nfa_p2p_cb.dm_disc_handle != NFA_HANDLE_INVALID) {
nfa_p2p_cb.rf_disc_state = NFA_DM_RFST_IDLE;
nfa_dm_delete_rf_discover(nfa_p2p_cb.dm_disc_handle);
nfa_p2p_cb.dm_disc_handle = NFA_HANDLE_INVALID;
}
/* restart discovery without updating sub-module status */
if (nfa_p2p_cb.is_p2p_listening || appl_dta_mode_flag)
nfa_p2p_enable_listening(NFA_ID_P2P, false);
else if (nfa_p2p_cb.is_snep_listening)
nfa_p2p_enable_listening(NFA_ID_SNEP, false);
}
}
/*******************************************************************************
**
** Function nfa_p2p_evt_hdlr
**
** Description Processing event for NFA P2P
**
**
** Returns TRUE if p_msg needs to be deallocated
**
*******************************************************************************/
static bool nfa_p2p_evt_hdlr(NFC_HDR* p_hdr) {
bool delete_msg = true;
uint16_t event;
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("LLCP State [%s], Event [%s]",
nfa_p2p_llcp_state_code(nfa_p2p_cb.llcp_state).c_str(),
nfa_p2p_evt_code(p_hdr->event).c_str());
event = p_hdr->event & 0x00ff;
/* execute action functions */
if (event < NFA_P2P_NUM_ACTIONS) {
tNFA_P2P_MSG* p_msg = (tNFA_P2P_MSG*)p_hdr;
delete_msg = (*nfa_p2p_action[event])(p_msg);
} else {
LOG(ERROR) << StringPrintf("Unhandled event");
}
return delete_msg;
}
/*******************************************************************************
**
** Function nfa_p2p_llcp_state_code
**
** Description
**
** Returns string of state
**
*******************************************************************************/
static std::string nfa_p2p_llcp_state_code(tNFA_P2P_LLCP_STATE state_code) {
switch (state_code) {
case NFA_P2P_LLCP_STATE_IDLE:
return "Link IDLE";
case NFA_P2P_LLCP_STATE_LISTENING:
return "Link LISTENING";
case NFA_P2P_LLCP_STATE_ACTIVATED:
return "Link ACTIVATED";
default:
return "Unknown state";
}
}
/*******************************************************************************
**
** Function nfa_p2p_evt_code
**
** Description
**
** Returns string of event
**
*******************************************************************************/
static std::string nfa_p2p_evt_code(uint16_t evt_code) {
switch (evt_code) {
case NFA_P2P_API_REG_SERVER_EVT:
return "API_REG_SERVER";
case NFA_P2P_API_REG_CLIENT_EVT:
return "API_REG_CLIENT";
case NFA_P2P_API_DEREG_EVT:
return "API_DEREG";
case NFA_P2P_API_ACCEPT_CONN_EVT:
return "API_ACCEPT_CONN";
case NFA_P2P_API_REJECT_CONN_EVT:
return "API_REJECT_CONN";
case NFA_P2P_API_DISCONNECT_EVT:
return "API_DISCONNECT";
case NFA_P2P_API_CONNECT_EVT:
return "API_CONNECT";
case NFA_P2P_API_SEND_UI_EVT:
return "API_SEND_UI";
case NFA_P2P_API_SEND_DATA_EVT:
return "API_SEND_DATA";
case NFA_P2P_API_SET_LOCAL_BUSY_EVT:
return "API_SET_LOCAL_BUSY";
case NFA_P2P_API_GET_LINK_INFO_EVT:
return "API_GET_LINK_INFO";
case NFA_P2P_API_GET_REMOTE_SAP_EVT:
return "API_GET_REMOTE_SAP";
case NFA_P2P_API_SET_LLCP_CFG_EVT:
return "API_SET_LLCP_CFG_EVT";
case NFA_P2P_INT_RESTART_RF_DISC_EVT:
return "RESTART_RF_DISC_EVT";
default:
return "Unknown event";
}
}