Hi Jaganath,
> This patch does extended advertising for directed advertising
> if the controller supportes. Instance 0 is used for directed
> advertising.
>
> Signed-off-by: Jaganath Kanakkassery <jaganathx.kanakkassery@xxxxxxxxx>
> ---
> net/bluetooth/hci_conn.c | 67 ++++++++++++++++++++++++++++++++----------------
> 1 file changed, 45 insertions(+), 22 deletions(-)
>
> diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
> index 5d421a2..fc27bd8 100644
> --- a/net/bluetooth/hci_conn.c
> +++ b/net/bluetooth/hci_conn.c
> @@ -870,35 +870,58 @@ static void hci_req_directed_advertising(struct hci_request *req,
> struct hci_conn *conn)
> {
> struct hci_dev *hdev = req->hdev;
> - struct hci_cp_le_set_adv_param cp;
> u8 own_addr_type;
> u8 enable;
>
> - /* Clear the HCI_LE_ADV bit temporarily so that the
> - * hci_update_random_address knows that it's safe to go ahead
> - * and write a new random address. The flag will be set back on
> - * as soon as the SET_ADV_ENABLE HCI command completes.
> - */
> - hci_dev_clear_flag(hdev, HCI_LE_ADV);
> + if (ext_adv_capable(hdev)) {
> + struct hci_cp_le_set_ext_adv_params cp;
>
> - /* Set require_privacy to false so that the remote device has a
> - * chance of identifying us.
> - */
> - if (hci_update_random_address(req, false, conn_use_rpa(conn),
> - &own_addr_type) < 0)
> - return;
> + memset(&cp, 0, sizeof(cp));
>
> - memset(&cp, 0, sizeof(cp));
> - cp.type = LE_ADV_DIRECT_IND;
> - cp.own_address_type = own_addr_type;
> - cp.direct_addr_type = conn->dst_type;
> - bacpy(&cp.direct_addr, &conn->dst);
> - cp.channel_map = hdev->le_adv_channel_map;
> + cp.evt_properties = cpu_to_le16(LE_LEGACY_ADV_DIRECT_IND);
> + cp.own_addr_type = own_addr_type;
> + cp.channel_map = hdev->le_adv_channel_map;
> + cp.tx_power = 127;
Use the proper constant here. Or maybe we actually want to use hdev->adv_tx_power here instead. As I mentioned in early patches we want to keep the behavior of what legacy advertising does.
> + cp.primary_phy = HCI_ADV_PHY_1M;
> + cp.secondary_phy = HCI_ADV_PHY_1M;
> + cp.handle = 0; /* Use instance 0 for directed adv */
> + cp.own_addr_type = own_addr_type;
> + cp.peer_addr_type = conn->dst_type;
> + bacpy(&cp.peer_addr, &conn->dst);
> +
> + hci_req_add(req, HCI_OP_LE_SET_EXT_ADV_PARAMS, sizeof(cp), &cp);
>
> - hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
> + __hci_req_enable_ext_advertising(req);
> + } else {
> + struct hci_cp_le_set_adv_param cp;
> +
> + /* Clear the HCI_LE_ADV bit temporarily so that the
> + * hci_update_random_address knows that it's safe to go ahead
> + * and write a new random address. The flag will be set back on
> + * as soon as the SET_ADV_ENABLE HCI command completes.
> + */
> + hci_dev_clear_flag(hdev, HCI_LE_ADV);
>
> - enable = 0x01;
> - hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
> + /* Set require_privacy to false so that the remote device has a
> + * chance of identifying us.
> + */
> + if (hci_update_random_address(req, false, conn_use_rpa(conn),
> + &own_addr_type) < 0)
> + return;
> +
> + memset(&cp, 0, sizeof(cp));
> + cp.type = LE_ADV_DIRECT_IND;
> + cp.own_address_type = own_addr_type;
> + cp.direct_addr_type = conn->dst_type;
> + bacpy(&cp.direct_addr, &conn->dst);
> + cp.channel_map = hdev->le_adv_channel_map;
> +
> + hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
> +
> + enable = 0x01;
> + hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable),
> + &enable);
> + }
>
> conn->state = BT_CONNECT;
> }
Regards
Marcel
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