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Bluetooth: Send HCI_Read_Clock_Offset before disconnecting

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When the connection is in master role and it is going to be
disconnected based on the disconnection timeout, then send
the HCI_Read_Clock_Offset command in an attempt to update the
clock offset value in the inquiry cache.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2014-06-27 14:32:16 +02:00
parent 40051e4686
commit df935429be
2 changed files with 24 additions and 0 deletions
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5
include/net/bluetooth/hci.h
View File

@ -533,6 +533,11 @@ struct hci_cp_read_remote_version {
__le16 handle;
} __packed;
#define HCI_OP_READ_CLOCK_OFFSET 0x041f
struct hci_cp_read_clock_offset {
__le16 handle;
} __packed;
#define HCI_OP_SETUP_SYNC_CONN 0x0428
struct hci_cp_setup_sync_conn {
__le16 handle;

19
net/bluetooth/hci_conn.c
View File

@ -309,6 +309,25 @@ static void hci_conn_timeout(struct work_struct *work)
hci_amp_disconn(conn);
} else {
__u8 reason = hci_proto_disconn_ind(conn);
/* When we are master of an established connection
* and it enters the disconnect timeout, then go
* ahead and try to read the current clock offset.
*
* Processing of the result is done within the
* event handling and hci_clock_offset_evt function.
*/
if (conn->type == ACL_LINK &&
test_bit(HCI_CONN_MASTER, &conn->flags)) {
struct hci_dev *hdev = conn->hdev;
struct hci_cp_read_clock_offset cp;
cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(hdev, HCI_OP_READ_CLOCK_OFFSET,
sizeof(cp), &cp);
}
hci_disconnect(conn, reason);
}
break;