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Bluetooth: Enable basics for LE Data Length Extension feature

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When the controller supports the new LE Data Length Extension feature
from Bluetooth 4.2 specification, enable the new events and read the
values for default and maxmimum data length supported by the controller.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2014-12-20 16:28:39 +01:00 committed by Johan Hedberg
parent 94a3bd02a6
commit a9f6068e00
1 changed files with 14 additions and 0 deletions
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14
net/bluetooth/hci_core.c
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@ -805,6 +805,12 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt)
* Parameter Request
*/
/* If the controller supports the Data Length Extension
* feature, enable the corresponding event.
*/
if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT)
events[0] |= 0x40; /* LE Data Length Change */
/* If the controller supports Extended Scanner Filter
* Policies, enable the correspondig event.
*/
@ -835,6 +841,14 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt)
hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL);
}
if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT) {
/* Read LE Maximum Data Length */
hci_req_add(req, HCI_OP_LE_READ_MAX_DATA_LEN, 0, NULL);
/* Read LE Suggested Default Data Length */
hci_req_add(req, HCI_OP_LE_READ_DEF_DATA_LEN, 0, NULL);
}
hci_set_le_support(req);
}