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Bluetooth: Add timeout field to mgmt_set_discoverable

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Based on the revised mgmt API set_discoverable has a timeout parameter
to specify how long the adapter will remain discoverable. A value of 0
means "indefinitively".

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Johan Hedberg 2011-11-07 22:16:02 +02:00 committed by Gustavo F. Padovan
parent 89352e7d3a
commit 16ab91ab48
5 changed files with 43 additions and 1 deletions
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3
include/net/bluetooth/hci_core.h
View file

@ -196,6 +196,9 @@ struct hci_dev {
struct work_struct power_off;
struct timer_list off_timer;
__u16 discov_timeout;
struct delayed_work discov_off;
struct timer_list cmd_timer;
struct tasklet_struct cmd_task;
struct tasklet_struct rx_task;

4
include/net/bluetooth/mgmt.h
View file

@ -69,6 +69,10 @@ struct mgmt_mode {
#define MGMT_OP_SET_POWERED 0x0005
#define MGMT_OP_SET_DISCOVERABLE 0x0006
struct mgmt_cp_set_discoverable {
__u8 val;
__u16 timeout;
} __packed;
#define MGMT_OP_SET_CONNECTABLE 0x0007

25
net/bluetooth/hci_core.c
View file

@ -595,6 +595,11 @@ static int hci_dev_do_close(struct hci_dev *hdev)
tasklet_kill(&hdev->rx_task);
tasklet_kill(&hdev->tx_task);
if (hdev->discov_timeout > 0) {
cancel_delayed_work_sync(&hdev->discov_off);
hdev->discov_timeout = 0;
}
hci_dev_lock_bh(hdev);
inquiry_cache_flush(hdev);
hci_conn_hash_flush(hdev);
@ -968,6 +973,24 @@ void hci_del_off_timer(struct hci_dev *hdev)
del_timer(&hdev->off_timer);
}
static void hci_discov_off(struct work_struct *work)
{
struct hci_dev *hdev;
u8 scan = SCAN_PAGE;
hdev = container_of(work, struct hci_dev, discov_off.work);
BT_DBG("%s", hdev->name);
hci_dev_lock_bh(hdev);
hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
hdev->discov_timeout = 0;
hci_dev_unlock_bh(hdev);
}
int hci_uuids_clear(struct hci_dev *hdev)
{
struct list_head *p, *n;
@ -1485,6 +1508,8 @@ int hci_register_dev(struct hci_dev *hdev)
INIT_WORK(&hdev->power_off, hci_power_off);
setup_timer(&hdev->off_timer, hci_auto_off, (unsigned long) hdev);
INIT_DELAYED_WORK(&hdev->discov_off, hci_discov_off);
memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));
atomic_set(&hdev->promisc, 0);

5
net/bluetooth/hci_event.c
View file

@ -292,6 +292,11 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
set_bit(HCI_ISCAN, &hdev->flags);
if (!old_iscan)
mgmt_discoverable(hdev->id, 1);
if (hdev->discov_timeout > 0) {
int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
queue_delayed_work(hdev->workqueue, &hdev->discov_off,
to);
}
} else if (old_iscan)
mgmt_discoverable(hdev->id, 0);

7
net/bluetooth/mgmt.c
View file

@ -350,7 +350,7 @@ failed:
static int set_discoverable(struct sock *sk, u16 index, unsigned char *data,
u16 len)
{
struct mgmt_mode *cp;
struct mgmt_cp_set_discoverable *cp;
struct hci_dev *hdev;
struct pending_cmd *cmd;
u8 scan;
@ -396,11 +396,16 @@ static int set_discoverable(struct sock *sk, u16 index, unsigned char *data,
if (cp->val)
scan |= SCAN_INQUIRY;
else
cancel_delayed_work_sync(&hdev->discov_off);
err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
if (err < 0)
mgmt_pending_remove(cmd);
if (cp->val)
hdev->discov_timeout = get_unaligned_le16(&cp->timeout);
failed:
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);