C++ (Cpp) l2cu_send_peer_ble_par_req Examples

Example #1

File: l2c_ble.c Project: InsomniaAOSP/platform_external_bluetooth_bluedroid

/*******************************************************************************
**
**  Function        L2CA_UpdateBleConnParams
**
**  Description     Update BLE connection parameters.
**
**  Parameters:     BD Address of remote
**
**  Return value:   TRUE if update started
**
*******************************************************************************/
BOOLEAN L2CA_UpdateBleConnParams (BD_ADDR rem_bda, UINT16 min_int, UINT16 max_int, UINT16 latency, UINT16 timeout)
{
    tL2C_LCB            *p_lcb;

    /* See if we have a link control block for the remote device */
    p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda);

    /* If we don't have one, create one and accept the connection. */
    if (!p_lcb)
    {
        L2CAP_TRACE_WARNING2 ("L2CA_UpdateBleConnParams - unknown BD_ADDR %08x%04x",
                              (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3], (rem_bda[4]<<8)+rem_bda[5]);
        return(FALSE);
    }

    if (!p_lcb->is_ble_link)
    {
        L2CAP_TRACE_WARNING2 ("L2CA_UpdateBleConnParams - BD_ADDR %08x%04x not LE",
                              (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3], (rem_bda[4]<<8)+rem_bda[5]);
        return(FALSE);
    }

    if (p_lcb->link_role == HCI_ROLE_MASTER)
        btsnd_hcic_ble_upd_ll_conn_params (p_lcb->handle, min_int, max_int, latency, timeout, 0, 0);
    else
        l2cu_send_peer_ble_par_req (p_lcb, min_int, max_int, latency, timeout);

    return(TRUE);
}

Example #2

/*******************************************************************************
**
**  Function        l2cble_start_conn_update
**
**  Description     start BLE connection parameter update process based on status
**
**  Parameters:     lcb : l2cap link control block
**
**  Return value:   none
**
*******************************************************************************/
static void l2cble_start_conn_update (tL2C_LCB *p_lcb)
{
    UINT16 min_conn_int, max_conn_int, slave_latency, supervision_tout;
    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev(p_lcb->remote_bd_addr);
    tACL_CONN *p_acl_cb = btm_bda_to_acl(p_lcb->remote_bd_addr, BT_TRANSPORT_LE);

    if (p_lcb->conn_update_mask & L2C_BLE_UPDATE_PENDING) return;

    if (p_lcb->conn_update_mask & L2C_BLE_CONN_UPDATE_DISABLE)
    {
        /* application requests to disable parameters update.
           If parameters are already updated, lets set them
           up to what has been requested during connection establishement */
        if (p_lcb->conn_update_mask & L2C_BLE_NOT_DEFAULT_PARAM &&
            /* current connection interval is greater than default min */
            p_lcb->min_interval > BTM_BLE_CONN_INT_MIN)
        {
            /* use 7.5 ms as fast connection parameter, 0 slave latency */
            min_conn_int = max_conn_int = BTM_BLE_CONN_INT_MIN;
            slave_latency = BTM_BLE_CONN_SLAVE_LATENCY_DEF;
            supervision_tout = BTM_BLE_CONN_TIMEOUT_DEF;

            /* if both side 4.1, or we are master device, send HCI command */
            if (p_lcb->link_role == HCI_ROLE_MASTER
#if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
                || (HCI_LE_CONN_PARAM_REQ_SUPPORTED(controller_get_interface()->get_features_ble()->as_array) &&
                    HCI_LE_CONN_PARAM_REQ_SUPPORTED(p_acl_cb->peer_le_features))
#endif
                 )
            {
                btsnd_hcic_ble_upd_ll_conn_params(p_lcb->handle, min_conn_int, max_conn_int,
                                                  slave_latency, supervision_tout, 0, 0);
                p_lcb->conn_update_mask |= L2C_BLE_UPDATE_PENDING;
            }
            else
            {
                l2cu_send_peer_ble_par_req (p_lcb, min_conn_int, max_conn_int, slave_latency, supervision_tout);
            }
            p_lcb->conn_update_mask &= ~L2C_BLE_NOT_DEFAULT_PARAM;
            p_lcb->conn_update_mask |=  L2C_BLE_NEW_CONN_PARAM;
         }
    }
    else
    {
        /* application allows to do update, if we were delaying one do it now */
        if (p_lcb->conn_update_mask & L2C_BLE_NEW_CONN_PARAM)
        {
             /* if both side 4.1, or we are master device, send HCI command */
            if (p_lcb->link_role == HCI_ROLE_MASTER
#if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
                || (HCI_LE_CONN_PARAM_REQ_SUPPORTED(controller_get_interface()->get_features_ble()->as_array) &&
                    HCI_LE_CONN_PARAM_REQ_SUPPORTED(p_acl_cb->peer_le_features))
#endif
                 )
            {
                btsnd_hcic_ble_upd_ll_conn_params(p_lcb->handle, p_lcb->min_interval,
                    p_lcb->max_interval, p_lcb->latency, p_lcb->timeout, 0, 0);
                p_lcb->conn_update_mask |= L2C_BLE_UPDATE_PENDING;
            }
            else
            {
                l2cu_send_peer_ble_par_req (p_lcb, p_lcb->min_interval, p_lcb->max_interval,
                                            p_lcb->latency, p_lcb->timeout);
            }
            p_lcb->conn_update_mask &= ~L2C_BLE_NEW_CONN_PARAM;
            p_lcb->conn_update_mask |= L2C_BLE_NOT_DEFAULT_PARAM;
        }
    }
}