hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Bluetooth: Update page scan when necessary for Add/Remove Device 

When we're removing the last item in the white list or adding the first
one to it and HCI_CONNECTABLE is not set we need to update the current
page scan. This patch adds a simple helper function for the purpose and
calls it from the respective mgmt command handlers.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2014-07-09 12:59:15 +03:00 committed by Marcel Holtmann
parent 6659358efe
commit a397407f26
1 changed files with 34 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
net/bluetooth/mgmt.c
View File

@ -5198,6 +5198,27 @@ unlock:
return err;
}
/* Helper for Add/Remove Device commands */
static void update_page_scan(struct hci_dev *hdev, u8 scan)
{
if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
return;
if (!hdev_is_powered(hdev))
return;
/* If HCI_CONNECTABLE is set then Add/Remove Device should not
* make any changes to page scanning.
*/
if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
return;
if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
scan |= SCAN_INQUIRY;
hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
}
static void device_added(struct sock *sk, struct hci_dev *hdev,
bdaddr_t *bdaddr, u8 type, u8 action)
{
@ -5233,6 +5254,8 @@ static int add_device(struct sock *sk, struct hci_dev *hdev,
hci_dev_lock(hdev);
if (cp->addr.type == BDADDR_BREDR) {
bool update_scan;
/* Only "connect" action supported for now */
if (cp->action != 0x01) {
err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
@ -5241,10 +5264,16 @@ static int add_device(struct sock *sk, struct hci_dev *hdev,
goto unlock;
}
update_scan = list_empty(&hdev->whitelist);
err = hci_bdaddr_list_add(&hdev->whitelist, &cp->addr.bdaddr,
cp->addr.type);
if (err)
goto unlock;
if (update_scan)
update_page_scan(hdev, SCAN_PAGE);
goto added;
}
@ -5324,6 +5353,9 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev,
goto unlock;
}
if (list_empty(&hdev->whitelist))
update_page_scan(hdev, SCAN_DISABLED);
device_removed(sk, hdev, &cp->addr.bdaddr,
cp->addr.type);
goto complete;
@ -5373,6 +5405,8 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev,
kfree(b);
}
update_page_scan(hdev, SCAN_DISABLED);
list_for_each_entry_safe(p, tmp, &hdev->le_conn_params, list) {
if (p->auto_connect == HCI_AUTO_CONN_DISABLED)
continue;