/*******************************************************************************
**
** Function avdt_ad_tc_data_ind
**
** Description This function is called by the L2CAP interface layer when
** incoming data is received from L2CAP. It looks up the CCB
** or SCB for the channel and routes the data accordingly.
**
**
** Returns Nothing.
**
*******************************************************************************/
void avdt_ad_tc_data_ind(tAVDT_TC_TBL *p_tbl, BT_HDR *p_buf)
{
tAVDT_CCB *p_ccb;
tAVDT_SCB *p_scb;
/* store type (media, recovery, reporting) */
p_buf->layer_specific = avdt_ad_tcid_to_type(p_tbl->tcid);
/* if signaling channel, handle control message */
if (p_tbl->tcid == 0) {
p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
avdt_msg_ind(p_ccb, p_buf);
}
/* if media or other channel, send event to scb */
else {
p_scb = avdt_scb_by_hdl(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].scb_hdl);
if (p_scb != NULL) {
avdt_scb_event(p_scb, AVDT_SCB_TC_DATA_EVT, (tAVDT_SCB_EVT *) &p_buf);
} else {
GKI_freebuf(p_buf);
AVDT_TRACE_ERROR(" avdt_ad_tc_data_ind buffer freed");
}
}
}
/*******************************************************************************
**
** Function avdt_ad_tc_close_ind
**
** Description This function is called by the L2CAP interface when the
** L2CAP channel is closed. It looks up the CCB or SCB for
** the channel and sends it a close event. The reason
** parameter is the same value passed by the L2CAP
** callback function.
**
**
** Returns Nothing.
**
*******************************************************************************/
void avdt_ad_tc_close_ind(tAVDT_TC_TBL *p_tbl, UINT16 reason)
{
tAVDT_CCB *p_ccb;
tAVDT_SCB *p_scb;
tAVDT_SCB_TC_CLOSE close;
// UNUSED(reason);
close.old_tc_state = p_tbl->state;
/* clear avdt_ad_tc_tbl entry */
p_tbl->state = AVDT_AD_ST_UNUSED;
p_tbl->cfg_flags = 0;
p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
AVDT_TRACE_DEBUG("avdt_ad_tc_close_ind tcid: %d, old: %d\n",
p_tbl->tcid, close.old_tc_state);
/* if signaling channel, notify ccb that channel open */
if (p_tbl->tcid == 0) {
p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
p_ccb->disc_rsn = (reason == AVDT_DISC_RSN_ABNORMAL) ? AVDT_DISC_RSN_ABNORMAL : AVDT_DISC_RSN_NORMAL;
avdt_ccb_event(p_ccb, AVDT_CCB_LL_CLOSE_EVT, NULL);
}
/* if media or other channel, notify scb that channel close */
else {
/* look up scb in stream routing table by ccb, tcid */
p_scb = avdt_scb_by_hdl(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].scb_hdl);
if (p_scb != NULL) {
close.tcid = p_tbl->tcid;
close.type = avdt_ad_tcid_to_type(p_tbl->tcid);
close.disc_rsn = (reason == AVDT_DISC_RSN_ABNORMAL) ? AVDT_DISC_RSN_ABNORMAL : AVDT_DISC_RSN_NORMAL;
avdt_scb_event(p_scb, AVDT_SCB_TC_CLOSE_EVT, (tAVDT_SCB_EVT *)&close);
}
}
}
/*******************************************************************************
**
** Function avdt_l2c_connect_cfm_cback
**
** Description This is the L2CAP connect confirm callback function.
**
**
** Returns void
**
*******************************************************************************/
void avdt_l2c_connect_cfm_cback(UINT16 lcid, UINT16 result)
{
tAVDT_TC_TBL *p_tbl;
tL2CAP_CFG_INFO cfg;
tAVDT_CCB *p_ccb;
AVDT_TRACE_DEBUG("avdt_l2c_connect_cfm_cback lcid: %d, result: %d\n",
lcid, result);
/* look up info for this channel */
if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL) {
/* if in correct state */
if (p_tbl->state == AVDT_AD_ST_CONN) {
/* if result successful */
if (result == L2CAP_CONN_OK) {
if (p_tbl->tcid != AVDT_CHAN_SIG) {
/* set channel state */
p_tbl->state = AVDT_AD_ST_CFG;
/* Send L2CAP config req */
memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
cfg.mtu_present = TRUE;
cfg.mtu = p_tbl->my_mtu;
cfg.flush_to_present = TRUE;
cfg.flush_to = p_tbl->my_flush_to;
L2CA_ConfigReq(lcid, &cfg);
} else {
p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
if (p_ccb == NULL) {
result = L2CAP_CONN_NO_RESOURCES;
} else {
/* set channel state */
p_tbl->state = AVDT_AD_ST_SEC_INT;
p_tbl->lcid = lcid;
p_tbl->cfg_flags = AVDT_L2C_CFG_CONN_INT;
/* Check the security */
btm_sec_mx_access_request (p_ccb->peer_addr, AVDT_PSM,
TRUE, BTM_SEC_PROTO_AVDT,
AVDT_CHAN_SIG,
&avdt_sec_check_complete_orig, NULL);
}
}
}
/* failure; notify adaption that channel closed */
if (result != L2CAP_CONN_OK) {
avdt_ad_tc_close_ind(p_tbl, result);
}
}
}
}
/*******************************************************************************
**
** Function avdt_ad_tc_cong_ind
**
** Description This function is called by the L2CAP interface layer when
** L2CAP calls the congestion callback. It looks up the CCB
** or SCB for the channel and sends it a congestion event.
** The is_congested parameter is the same value passed by
** the L2CAP callback function.
**
**
** Returns Nothing.
**
*******************************************************************************/
void avdt_ad_tc_cong_ind(tAVDT_TC_TBL *p_tbl, BOOLEAN is_congested)
{
tAVDT_CCB *p_ccb;
tAVDT_SCB *p_scb;
/* if signaling channel, notify ccb of congestion */
if (p_tbl->tcid == 0) {
p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
avdt_ccb_event(p_ccb, AVDT_CCB_LL_CONG_EVT, (tAVDT_CCB_EVT *) &is_congested);
}
/* if media or other channel, notify scb that channel open */
else {
/* look up scb in stream routing table by ccb, tcid */
p_scb = avdt_scb_by_hdl(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].scb_hdl);
if (p_scb != NULL) {
avdt_scb_event(p_scb, AVDT_SCB_TC_CONG_EVT, (tAVDT_SCB_EVT *) &is_congested);
}
}
}
/*******************************************************************************
**
** Function avdt_ad_tc_open_ind
**
** Description This function is called by the L2CAP interface when
** the L2CAP channel is opened. It looks up the CCB or SCB
** for the channel and sends it an open event.
**
**
** Returns Nothing.
**
*******************************************************************************/
void avdt_ad_tc_open_ind(tAVDT_TC_TBL *p_tbl)
{
tAVDT_CCB *p_ccb;
tAVDT_SCB *p_scb;
tAVDT_OPEN open;
tAVDT_EVT_HDR evt;
p_tbl->state = AVDT_AD_ST_OPEN;
/* if signaling channel, notify ccb that channel open */
if (p_tbl->tcid == 0) {
/* set the signal channel to use high priority within the ACL link */
L2CA_SetTxPriority(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][AVDT_CHAN_SIG].lcid, L2CAP_CHNL_PRIORITY_HIGH);
p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
/* use err_param to indicate the role of connection.
* AVDT_ACP, if ACP */
evt.err_param = AVDT_INT;
if (p_tbl->cfg_flags & AVDT_L2C_CFG_CONN_ACP) {
evt.err_param = AVDT_ACP;
}
avdt_ccb_event(p_ccb, AVDT_CCB_LL_OPEN_EVT, (tAVDT_CCB_EVT *)&evt);
}
/* if media or other channel, notify scb that channel open */
else {
/* look up scb in stream routing table by ccb, tcid */
p_scb = avdt_scb_by_hdl(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].scb_hdl);
/* put lcid in event data */
if (p_scb != NULL) {
open.peer_mtu = p_tbl->peer_mtu;
open.lcid = avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].lcid;
open.hdr.err_code = avdt_ad_tcid_to_type(p_tbl->tcid);
avdt_scb_event(p_scb, AVDT_SCB_TC_OPEN_EVT, (tAVDT_SCB_EVT *) &open);
}
}
}
