/*******************************************************************************
**
** Function btm_dev_support_switch
**
** Description This function is called by the L2CAP to check if remote
** device supports role switch
**
** Parameters: bd_addr - Address of the peer device
**
** Returns TRUE if device is known and role switch is supported
**
*******************************************************************************/
BOOLEAN btm_dev_support_switch (BD_ADDR bd_addr)
{
tBTM_SEC_DEV_REC *p_dev_rec;
UINT8 xx;
BOOLEAN feature_empty = TRUE;
#if BTM_SCO_INCLUDED == TRUE
/* Role switch is not allowed if a SCO is up */
if (btm_is_sco_active_by_bdaddr(bd_addr))
return(FALSE);
#endif
p_dev_rec = btm_find_dev (bd_addr);
if (p_dev_rec && HCI_SWITCH_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
{
if (HCI_SWITCH_SUPPORTED(p_dev_rec->features[HCI_EXT_FEATURES_PAGE_0]))
{
BTM_TRACE_DEBUG0("btm_dev_support_switch return TRUE (feature found)");
return (TRUE);
}
/* If the feature field is all zero, we never received them */
for (xx = 0 ; xx < BD_FEATURES_LEN ; xx++)
{
if (p_dev_rec->features[HCI_EXT_FEATURES_PAGE_0][xx] != 0x00)
{
feature_empty = FALSE; /* at least one is != 0 */
break;
}
}
/* If we don't know peer's capabilities, assume it supports Role-switch */
if (feature_empty)
{
BTM_TRACE_DEBUG0("btm_dev_support_switch return TRUE (feature empty)");
return (TRUE);
}
}
BTM_TRACE_DEBUG0("btm_dev_support_switch return FALSE");
return(FALSE);
}
/*******************************************************************************
**
** Function btm_decode_ext_features_page
**
** Description This function is decodes a features page.
**
** Returns void
**
*******************************************************************************/
static void btm_decode_ext_features_page (UINT8 page_number, const UINT8 *p_features)
{
BTM_TRACE_DEBUG ("btm_decode_ext_features_page page: %d", page_number);
switch (page_number)
{
/* Extended (Legacy) Page 0 */
case HCI_EXT_FEATURES_PAGE_0:
/* Create ACL supported packet types mask */
btm_cb.btm_acl_pkt_types_supported = (BTM_ACL_PKT_TYPES_MASK_DH1 +
BTM_ACL_PKT_TYPES_MASK_DM1);
if (HCI_3_SLOT_PACKETS_SUPPORTED(p_features))
btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_DH3 +
BTM_ACL_PKT_TYPES_MASK_DM3);
if (HCI_5_SLOT_PACKETS_SUPPORTED(p_features))
btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_DH5 +
BTM_ACL_PKT_TYPES_MASK_DM5);
/* Add in EDR related ACL types */
if (!HCI_EDR_ACL_2MPS_SUPPORTED(p_features))
{
btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_NO_2_DH1 +
BTM_ACL_PKT_TYPES_MASK_NO_2_DH3 +
BTM_ACL_PKT_TYPES_MASK_NO_2_DH5);
}
if (!HCI_EDR_ACL_3MPS_SUPPORTED(p_features))
{
btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_NO_3_DH1 +
BTM_ACL_PKT_TYPES_MASK_NO_3_DH3 +
BTM_ACL_PKT_TYPES_MASK_NO_3_DH5);
}
/* Check to see if 3 and 5 slot packets are available */
if (HCI_EDR_ACL_2MPS_SUPPORTED(p_features) ||
HCI_EDR_ACL_3MPS_SUPPORTED(p_features))
{
if (!HCI_3_SLOT_EDR_ACL_SUPPORTED(p_features))
btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_NO_2_DH3 +
BTM_ACL_PKT_TYPES_MASK_NO_3_DH3);
if (!HCI_5_SLOT_EDR_ACL_SUPPORTED(p_features))
btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_NO_2_DH5 +
BTM_ACL_PKT_TYPES_MASK_NO_3_DH5);
}
BTM_TRACE_DEBUG("Local supported ACL packet types: 0x%04x",
btm_cb.btm_acl_pkt_types_supported);
/* Create (e)SCO supported packet types mask */
btm_cb.btm_sco_pkt_types_supported = 0;
#if BTM_SCO_INCLUDED == TRUE
btm_cb.sco_cb.esco_supported = FALSE;
#endif
if (HCI_SCO_LINK_SUPPORTED(p_features))
{
btm_cb.btm_sco_pkt_types_supported = BTM_SCO_PKT_TYPES_MASK_HV1;
if (HCI_HV2_PACKETS_SUPPORTED(p_features))
btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_HV2;
if (HCI_HV3_PACKETS_SUPPORTED(p_features))
btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_HV3;
}
if (HCI_ESCO_EV3_SUPPORTED(p_features))
btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_EV3;
if (HCI_ESCO_EV4_SUPPORTED(p_features))
btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_EV4;
if (HCI_ESCO_EV5_SUPPORTED(p_features))
btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_EV5;
#if BTM_SCO_INCLUDED == TRUE
if (btm_cb.btm_sco_pkt_types_supported & BTM_ESCO_LINK_ONLY_MASK)
{
btm_cb.sco_cb.esco_supported = TRUE;
/* Add in EDR related eSCO types */
if (HCI_EDR_ESCO_2MPS_SUPPORTED(p_features))
{
if (!HCI_3_SLOT_EDR_ESCO_SUPPORTED(p_features))
btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_NO_2_EV5;
}
else
{
btm_cb.btm_sco_pkt_types_supported |= (BTM_SCO_PKT_TYPES_MASK_NO_2_EV3 +
BTM_SCO_PKT_TYPES_MASK_NO_2_EV5);
}
if (HCI_EDR_ESCO_3MPS_SUPPORTED(p_features))
{
if (!HCI_3_SLOT_EDR_ESCO_SUPPORTED(p_features))
btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_NO_3_EV5;
}
else
{
btm_cb.btm_sco_pkt_types_supported |= (BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 +
BTM_SCO_PKT_TYPES_MASK_NO_3_EV5);
}
}
#endif
BTM_TRACE_DEBUG("Local supported SCO packet types: 0x%04x",
btm_cb.btm_sco_pkt_types_supported);
/* Create Default Policy Settings */
if (HCI_SWITCH_SUPPORTED(p_features))
btm_cb.btm_def_link_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
else
btm_cb.btm_def_link_policy &= ~HCI_ENABLE_MASTER_SLAVE_SWITCH;
if (HCI_HOLD_MODE_SUPPORTED(p_features))
btm_cb.btm_def_link_policy |= HCI_ENABLE_HOLD_MODE;
else
btm_cb.btm_def_link_policy &= ~HCI_ENABLE_HOLD_MODE;
if (HCI_SNIFF_MODE_SUPPORTED(p_features))
btm_cb.btm_def_link_policy |= HCI_ENABLE_SNIFF_MODE;
else
btm_cb.btm_def_link_policy &= ~HCI_ENABLE_SNIFF_MODE;
if (HCI_PARK_MODE_SUPPORTED(p_features))
btm_cb.btm_def_link_policy |= HCI_ENABLE_PARK_MODE;
else
btm_cb.btm_def_link_policy &= ~HCI_ENABLE_PARK_MODE;
btm_sec_dev_reset ();
if (HCI_LMP_INQ_RSSI_SUPPORTED(p_features))
{
if (HCI_EXT_INQ_RSP_SUPPORTED(p_features))
BTM_SetInquiryMode (BTM_INQ_RESULT_EXTENDED);
else
BTM_SetInquiryMode (BTM_INQ_RESULT_WITH_RSSI);
}
#if L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE
if( HCI_NON_FLUSHABLE_PB_SUPPORTED(p_features))
l2cu_set_non_flushable_pbf(TRUE);
else
l2cu_set_non_flushable_pbf(FALSE);
#endif
BTM_SetPageScanType (BTM_DEFAULT_SCAN_TYPE);
BTM_SetInquiryScanType (BTM_DEFAULT_SCAN_TYPE);
break;
/* Extended Page 1 */
case HCI_EXT_FEATURES_PAGE_1:
/* Nothing to do for page 1 */
break;
/* Extended Page 2 */
case HCI_EXT_FEATURES_PAGE_2:
/* Nothing to do for page 2 */
break;
default:
BTM_TRACE_ERROR("btm_decode_ext_features_page page=%d unknown", page_number);
break;
}
}
