/*******************************************************************************
**
** Function avdt_ad_open_req
**
** Description This function is called by a CCB or SCB to open a transport
** channel. This function allocates and initializes a
** transport channel table entry. The channel can be opened
** in two roles: as an initiator or acceptor. When opened
** as an initiator the function will start an L2CAP connection.
** When opened as an acceptor the function simply configures
** the table entry to listen for an incoming channel.
**
**
** Returns Nothing.
**
*******************************************************************************/
void avdt_ad_open_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, UINT8 role)
{
tAVDT_TC_TBL *p_tbl;
UINT16 lcid;
if ((p_tbl = avdt_ad_tc_tbl_alloc(p_ccb)) == NULL) {
AVDT_TRACE_ERROR("avdt_ad_open_req: Cannot allocate p_tbl");
return;
}
p_tbl->tcid = avdt_ad_type_to_tcid(type, p_scb);
AVDT_TRACE_DEBUG("avdt_ad_open_req: type: %d, role: %d, tcid:%d\n",
type, role, p_tbl->tcid);
if (type == AVDT_CHAN_SIG) {
/* if signaling, get mtu from registration control block */
p_tbl->my_mtu = avdt_cb.rcb.ctrl_mtu;
p_tbl->my_flush_to = L2CAP_DEFAULT_FLUSH_TO;
} else {
/* otherwise get mtu from scb */
p_tbl->my_mtu = p_scb->cs.mtu;
p_tbl->my_flush_to = p_scb->cs.flush_to;
/* also set scb_hdl in rt_tbl */
avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][p_tbl->tcid].scb_hdl = avdt_scb_to_hdl(p_scb);
AVDT_TRACE_DEBUG("avdt_cb.ad.rt_tbl[%d][%d].scb_hdl = %d\n",
avdt_ccb_to_idx(p_ccb), p_tbl->tcid,
avdt_scb_to_hdl(p_scb));
}
/* if we're acceptor, we're done; just sit back and listen */
if (role == AVDT_ACP) {
p_tbl->state = AVDT_AD_ST_ACP;
}
/* else we're inititator, start the L2CAP connection */
else {
p_tbl->state = AVDT_AD_ST_CONN;
/* call l2cap connect req */
if ((lcid = L2CA_ConnectReq(AVDT_PSM, p_ccb->peer_addr)) != 0) {
/* if connect req ok, store tcid in lcid table */
avdt_cb.ad.lcid_tbl[lcid - L2CAP_BASE_APPL_CID] = avdt_ad_tc_tbl_to_idx(p_tbl);
AVDT_TRACE_DEBUG("avdt_cb.ad.lcid_tbl[%d] = %d\n",
(lcid - L2CAP_BASE_APPL_CID), avdt_ad_tc_tbl_to_idx(p_tbl));
avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][p_tbl->tcid].lcid = lcid;
AVDT_TRACE_DEBUG("avdt_cb.ad.rt_tbl[%d][%d].lcid = 0x%x\n",
avdt_ccb_to_idx(p_ccb), p_tbl->tcid,
lcid);
} else {
/* if connect req failed, call avdt_ad_tc_close_ind() */
avdt_ad_tc_close_ind(p_tbl, 0);
}
}
}
/*******************************************************************************
**
** Function avdt_scb_verify
**
** Description Verify the condition of a list of scbs.
**
**
** Returns SEID that failed, or 0 if success.
**
*******************************************************************************/
UINT8 avdt_scb_verify(tAVDT_CCB *p_ccb, UINT8 state, UINT8 *p_seid, UINT16 num_seid, UINT8 *p_err_code)
{
int i;
tAVDT_SCB *p_scb;
UINT8 nsc_mask;
UINT8 chk_state;
UINT8 ret = 0;
AVDT_TRACE_DEBUG("avdt_scb_verify state %d", state);
/* set nonsupported command mask */
/* translate public state into private state */
nsc_mask = 0;
chk_state = AVDT_SCB_STREAM_ST;
switch(state)
{
case AVDT_VERIFY_SUSPEND:
nsc_mask = AVDT_NSC_SUSPEND;
break;
case AVDT_VERIFY_OPEN:
case AVDT_VERIFY_START:
chk_state = AVDT_SCB_OPEN_ST;
break;
}
/* verify every scb */
for (i = 0; i < num_seid; i++)
{
if ((p_scb = avdt_scb_by_hdl(p_seid[i])) == NULL)
{
*p_err_code = AVDT_ERR_BAD_STATE;
break;
}
else if ((p_scb->state != chk_state) || (p_scb->p_ccb != p_ccb))
{
*p_err_code = AVDT_ERR_BAD_STATE;
break;
}
else if (p_scb->cs.nsc_mask & nsc_mask)
{
*p_err_code = AVDT_ERR_NSC;
break;
}
}
if (i != num_seid)
{
ret = p_seid[i];
}
AVDT_TRACE_DEBUG("avdt_scb_verify state %d, nsc_mask0x%x, ret: %d",
chk_state, nsc_mask, ret);
return ret;
}
/*******************************************************************************
**
** Function avdt_sec_check_complete_orig
**
** Description The function called when Security Manager finishes
** verification of the service side connection
**
** Returns void
**
*******************************************************************************/
static void avdt_sec_check_complete_orig (BD_ADDR bd_addr, tBT_TRANSPORT trasnport,
void *p_ref_data, UINT8 res)
{
tAVDT_CCB *p_ccb = NULL;
tL2CAP_CFG_INFO cfg;
tAVDT_TC_TBL *p_tbl;
UNUSED(p_ref_data);
AVDT_TRACE_DEBUG("avdt_sec_check_complete_orig res: %d\n", res);
if (bd_addr) {
p_ccb = avdt_ccb_by_bd(bd_addr);
}
p_tbl = avdt_ad_tc_tbl_by_st(AVDT_CHAN_SIG, p_ccb, AVDT_AD_ST_SEC_INT);
if (p_tbl == NULL) {
return;
}
if ( res == BTM_SUCCESS ) {
/* 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(p_tbl->lcid, &cfg);
} else {
L2CA_DisconnectReq (p_tbl->lcid);
avdt_ad_tc_close_ind(p_tbl, L2CAP_CONN_SECURITY_BLOCK);
}
}
/*******************************************************************************
**
** Function avdt_l2c_config_ind_cback
**
** Description This is the L2CAP config indication callback function.
**
**
** Returns void
**
*******************************************************************************/
void avdt_l2c_config_ind_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
{
tAVDT_TC_TBL *p_tbl;
/* look up info for this channel */
if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL) {
/* store the mtu in tbl */
if (p_cfg->mtu_present) {
p_tbl->peer_mtu = p_cfg->mtu;
} else {
p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
}
AVDT_TRACE_DEBUG("peer_mtu: %d, lcid: x%x\n", p_tbl->peer_mtu, lcid);
/* send L2CAP configure response */
memset(p_cfg, 0, sizeof(tL2CAP_CFG_INFO));
p_cfg->result = L2CAP_CFG_OK;
L2CA_ConfigRsp(lcid, p_cfg);
/* if first config ind */
if ((p_tbl->cfg_flags & AVDT_L2C_CFG_IND_DONE) == 0) {
/* update cfg_flags */
p_tbl->cfg_flags |= AVDT_L2C_CFG_IND_DONE;
/* if configuration complete */
if (p_tbl->cfg_flags & AVDT_L2C_CFG_CFM_DONE) {
avdt_ad_tc_open_ind(p_tbl);
}
}
}
}
/*******************************************************************************
**
** 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_SINK_Deactivate
**
** Description Deactivate SEP of A2DP Sink. In Use parameter is adjusted.
** In Use will be made TRUE in case of activation. A2DP SRC
** will receive in_use as true and will not open A2DP Sink
** connection
**
** Returns void.
**
*******************************************************************************/
void AVDT_SINK_Deactivate()
{
tAVDT_SCB *p_scb = &avdt_cb.scb[0];
int i;
AVDT_TRACE_DEBUG("AVDT_SINK_Deactivate");
/* for all allocated scbs */
for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++) {
if ((p_scb->allocated) && (p_scb->cs.tsep == AVDT_TSEP_SNK)) {
AVDT_TRACE_DEBUG("AVDT_SINK_Deactivate, found scb");
p_scb->sink_activated = FALSE;
/* update in_use */
p_scb->in_use = TRUE;
break;
}
}
}
/*******************************************************************************
**
** Function avdt_l2c_disconnect_cfm_cback
**
** Description This is the L2CAP disconnect confirm callback function.
**
**
** Returns void
**
*******************************************************************************/
void avdt_l2c_disconnect_cfm_cback(UINT16 lcid, UINT16 result)
{
tAVDT_TC_TBL *p_tbl;
AVDT_TRACE_DEBUG("avdt_l2c_disconnect_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) {
avdt_ad_tc_close_ind(p_tbl, result);
}
}
/*******************************************************************************
**
** Function avdt_scb_alloc
**
** Description Allocate a stream control block.
**
**
** Returns pointer to the scb, or NULL if none could be allocated.
**
*******************************************************************************/
tAVDT_SCB *avdt_scb_alloc(tAVDT_CS *p_cs)
{
tAVDT_SCB *p_scb = &avdt_cb.scb[0];
int i;
/* find available scb */
for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++)
{
if (!p_scb->allocated)
{
memset(p_scb,0,sizeof(tAVDT_SCB));
p_scb->allocated = TRUE;
p_scb->p_ccb = NULL;
/* initialize sink as activated */
if (p_cs->tsep == AVDT_TSEP_SNK)
{
p_scb->sink_activated = TRUE;
}
memcpy(&p_scb->cs, p_cs, sizeof(tAVDT_CS));
#if AVDT_MULTIPLEXING == TRUE
/* initialize fragments gueue */
GKI_init_q(&p_scb->frag_q);
if(p_cs->cfg.psc_mask & AVDT_PSC_MUX)
{
p_scb->cs.cfg.mux_tcid_media = avdt_ad_type_to_tcid(AVDT_CHAN_MEDIA, p_scb);
#if AVDT_REPORTING == TRUE
if(p_cs->cfg.psc_mask & AVDT_PSC_REPORT)
{
p_scb->cs.cfg.mux_tcid_report = avdt_ad_type_to_tcid(AVDT_CHAN_REPORT, p_scb);
}
#endif
}
#endif
p_scb->timer_entry.param = (UINT32) p_scb;
AVDT_TRACE_DEBUG("avdt_scb_alloc hdl=%d, psc_mask:0x%x", i+1, p_cs->cfg.psc_mask);
break;
}
}
if (i == AVDT_NUM_SEPS)
{
/* out of ccbs */
p_scb = NULL;
AVDT_TRACE_WARNING("Out of scbs");
}
return p_scb;
}
/*******************************************************************************
**
** 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_scb_dealloc
**
** Description Deallocate a stream control block.
**
**
** Returns void.
**
*******************************************************************************/
void avdt_scb_dealloc(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
{
UNUSED(p_data);
AVDT_TRACE_DEBUG("avdt_scb_dealloc hdl=%d\n", avdt_scb_to_hdl(p_scb));
btu_stop_timer(&p_scb->timer_entry);
#if AVDT_MULTIPLEXING == TRUE
/* free fragments we're holding, if any; it shouldn't happen */
fixed_queue_free(p_scb->frag_q, osi_free_func);
#endif
memset(p_scb, 0, sizeof(tAVDT_SCB));
}
/*******************************************************************************
**
** Function avdt_scb_verify
**
** Description Verify the condition of a list of scbs.
**
**
** Returns SEID that failed, or 0 if success.
**
*******************************************************************************/
UINT8 avdt_scb_verify(tAVDT_CCB *p_ccb, UINT8 state, UINT8 *p_seid, UINT16 num_seid, UINT8 *p_err_code)
{
int i;
tAVDT_SCB *p_scb;
UINT8 nsc_mask;
UINT8 ret = 0;
AVDT_TRACE_DEBUG("avdt_scb_verify state %d\n", state);
/* set nonsupported command mask */
/* translate public state into private state */
nsc_mask = 0;
if (state == AVDT_VERIFY_SUSPEND) {
nsc_mask = AVDT_NSC_SUSPEND;
}
/* verify every scb */
for (i = 0, *p_err_code = 0; (i < num_seid) && (*p_err_code == 0) && (i < AVDT_NUM_SEPS); i++) {
if ((p_scb = avdt_scb_by_hdl(p_seid[i])) == NULL) {
*p_err_code = AVDT_ERR_BAD_STATE;
} else if (p_scb->p_ccb != p_ccb) {
*p_err_code = AVDT_ERR_BAD_STATE;
} else if (p_scb->cs.nsc_mask & nsc_mask) {
*p_err_code = AVDT_ERR_NSC;
}
switch (state) {
case AVDT_VERIFY_OPEN:
case AVDT_VERIFY_START:
if (p_scb->state != AVDT_SCB_OPEN_ST && p_scb->state != AVDT_SCB_STREAM_ST) {
*p_err_code = AVDT_ERR_BAD_STATE;
}
break;
case AVDT_VERIFY_SUSPEND:
case AVDT_VERIFY_STREAMING:
if (p_scb->state != AVDT_SCB_STREAM_ST) {
*p_err_code = AVDT_ERR_BAD_STATE;
}
break;
}
}
if ((i != num_seid) && (i < AVDT_NUM_SEPS)) {
ret = p_seid[i];
}
return ret;
}
/*******************************************************************************
**
** Function avdt_ad_tcid_to_type
**
** Description Derives the channel type from the TCID.
**
**
** Returns Channel type value.
**
*******************************************************************************/
static UINT8 avdt_ad_tcid_to_type(UINT8 tcid)
{
UINT8 type;
if (tcid == 0) {
type = AVDT_CHAN_SIG;
} else {
/* tcid translates to type based on number of channels, as follows:
** only media channel : tcid=1,2,3,4,5,6... type=1,1,1,1,1,1...
** media and report : tcid=1,2,3,4,5,6... type=1,2,1,2,1,2...
** media, report, recov : tcid=1,2,3,4,5,6... type=1,2,3,1,2,3...
*/
type = ((tcid + AVDT_CHAN_NUM_TYPES - 2) % (AVDT_CHAN_NUM_TYPES - 1)) + 1;
}
AVDT_TRACE_DEBUG("tcid: %d, type: %d\n", tcid, type);
return type;
}
/*******************************************************************************
**
** Function avdt_l2c_disconnect_ind_cback
**
** Description This is the L2CAP disconnect indication callback function.
**
**
** Returns void
**
*******************************************************************************/
void avdt_l2c_disconnect_ind_cback(UINT16 lcid, BOOLEAN ack_needed)
{
tAVDT_TC_TBL *p_tbl;
UINT16 disc_rsn = AVDT_DISC_RSN_NORMAL;
AVDT_TRACE_DEBUG("avdt_l2c_disconnect_ind_cback lcid: %d, ack_needed: %d\n",
lcid, ack_needed);
/* look up info for this channel */
if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL) {
if (ack_needed) {
/* send L2CAP disconnect response */
L2CA_DisconnectRsp(lcid);
} else {
disc_rsn = AVDT_DISC_RSN_ABNORMAL;
}
avdt_ad_tc_close_ind(p_tbl, disc_rsn);
}
}
/*******************************************************************************
**
** Function avdt_scb_dealloc
**
** Description Deallocate a stream control block.
**
**
** Returns void.
**
*******************************************************************************/
void avdt_scb_dealloc(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
{
#if AVDT_MULTIPLEXING == TRUE
void *p_buf;
#endif
UNUSED(p_data);
AVDT_TRACE_DEBUG("avdt_scb_dealloc hdl=%d", avdt_scb_to_hdl(p_scb));
btu_stop_timer(&p_scb->timer_entry);
#if AVDT_MULTIPLEXING == TRUE
/* free fragments we're holding, if any; it shouldn't happen */
while ((p_buf = GKI_dequeue (&p_scb->frag_q)) != NULL)
GKI_freebuf(p_buf);
#endif
memset(p_scb, 0, sizeof(tAVDT_SCB));
}
/*******************************************************************************
**
** Function avdt_sec_check_complete_term
**
** Description The function called when Security Manager finishes
** verification of the service side connection
**
** Returns void
**
*******************************************************************************/
static void avdt_sec_check_complete_term (BD_ADDR bd_addr, tBT_TRANSPORT transport,
void *p_ref_data, UINT8 res)
{
tAVDT_CCB *p_ccb = NULL;
tL2CAP_CFG_INFO cfg;
tAVDT_TC_TBL *p_tbl;
UNUSED(p_ref_data);
AVDT_TRACE_DEBUG("avdt_sec_check_complete_term res: %d\n", res);
if (!bd_addr) {
AVDT_TRACE_WARNING("avdt_sec_check_complete_term: NULL BD_ADDR");
return;
}
p_ccb = avdt_ccb_by_bd(bd_addr);
p_tbl = avdt_ad_tc_tbl_by_st(AVDT_CHAN_SIG, p_ccb, AVDT_AD_ST_SEC_ACP);
if (p_tbl == NULL) {
return;
}
if (res == BTM_SUCCESS) {
/* Send response to the L2CAP layer. */
L2CA_ConnectRsp (bd_addr, p_tbl->id, p_tbl->lcid, L2CAP_CONN_OK, L2CAP_CONN_OK);
/* store idx in LCID table, store LCID in routing table */
avdt_cb.ad.lcid_tbl[p_tbl->lcid - L2CAP_BASE_APPL_CID] = avdt_ad_tc_tbl_to_idx(p_tbl);
avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][p_tbl->tcid].lcid = p_tbl->lcid;
/* transition to configuration 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(p_tbl->lcid, &cfg);
} else {
L2CA_ConnectRsp (bd_addr, p_tbl->id, p_tbl->lcid, L2CAP_CONN_SECURITY_BLOCK, L2CAP_CONN_OK);
avdt_ad_tc_close_ind(p_tbl, L2CAP_CONN_SECURITY_BLOCK);
}
}
/*******************************************************************************
**
** Function avdt_ad_close_req
**
** Description This function is called by a CCB or SCB to close a
** transport channel. The function looks up the LCID for the
** channel and calls L2CA_DisconnectReq().
**
**
** Returns Nothing.
**
*******************************************************************************/
void avdt_ad_close_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb)
{
UINT8 tcid;
tAVDT_TC_TBL *p_tbl;
p_tbl = avdt_ad_tc_tbl_by_type(type, p_ccb, p_scb);
AVDT_TRACE_DEBUG("avdt_ad_close_req state: %d\n", p_tbl->state);
switch (p_tbl->state) {
case AVDT_AD_ST_UNUSED:
/* probably for reporting */
break;
case AVDT_AD_ST_ACP:
/* if we're listening on this channel, send ourselves a close ind */
avdt_ad_tc_close_ind(p_tbl, 0);
break;
default:
/* get tcid from type, scb */
tcid = avdt_ad_type_to_tcid(type, p_scb);
/* call l2cap disconnect req */
L2CA_DisconnectReq(avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid);
}
}
/*******************************************************************************
**
** Function avdt_ad_tc_tbl_to_idx
**
** Description Convert a transport channel table entry to an index.
**
**
** Returns Index value.
**
*******************************************************************************/
UINT8 avdt_ad_tc_tbl_to_idx(tAVDT_TC_TBL *p_tbl)
{
AVDT_TRACE_DEBUG("avdt_ad_tc_tbl_to_idx: %d\n", (p_tbl - avdt_cb.ad.tc_tbl));
/* use array arithmetic to determine index */
return (UINT8) (p_tbl - avdt_cb.ad.tc_tbl);
}