From f0d4b78a68c4fe3b0d45de9a50e8d29419177b83 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Tue, 21 Feb 2012 12:14:25 +0100 Subject: [PATCH] Bluetooth: Only keep controller up after init if powered on When a new controller gets added to the system, it needs to be brought up briefly to read basic information like features, BD_ADDR etc. and after a timeout it will be brought back down. The only command that should overwrite this timeout is the set power command from the management interface. Just reading the controller list or information is not a good reason to keep the controller up. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- net/bluetooth/mgmt.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index a5a2a6844aea..c25cb648059e 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -339,9 +339,6 @@ static int read_index_list(struct sock *sk) i = 0; list_for_each_entry(d, &hci_dev_list, list) { - if (test_and_clear_bit(HCI_AUTO_OFF, &d->dev_flags)) - cancel_delayed_work(&d->power_off); - if (test_bit(HCI_SETUP, &d->dev_flags)) continue; @@ -392,11 +389,12 @@ static u32 get_current_settings(struct hci_dev *hdev) { u32 settings = 0; - if (test_bit(HCI_UP, &hdev->flags)) - settings |= MGMT_SETTING_POWERED; - else + if (!test_bit(HCI_UP, &hdev->flags)) return settings; + if (!test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) + settings |= MGMT_SETTING_POWERED; + if (test_bit(HCI_PSCAN, &hdev->flags)) settings |= MGMT_SETTING_CONNECTABLE; @@ -623,9 +621,6 @@ static int read_controller_info(struct sock *sk, u16 index) return cmd_status(sk, index, MGMT_OP_READ_INFO, MGMT_STATUS_INVALID_PARAMS); - if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) - cancel_delayed_work_sync(&hdev->power_off); - hci_dev_lock(hdev); if (test_and_clear_bit(HCI_PI_MGMT_INIT, &hci_pi(sk)->flags)) @@ -753,6 +748,16 @@ static int set_powered(struct sock *sk, u16 index, void *data, u16 len) hci_dev_lock(hdev); + if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) { + cancel_delayed_work(&hdev->power_off); + + if (cp->val) { + err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev); + mgmt_powered(hdev, 1); + goto failed; + } + } + up = test_bit(HCI_UP, &hdev->flags); if ((cp->val && up) || (!cp->val && !up)) { err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev); -- 2.20.1