From 16ab91ab48287aa4fc757f3618820f728ee4412f Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Mon, 7 Nov 2011 22:16:02 +0200 Subject: [PATCH] Bluetooth: Add timeout field to mgmt_set_discoverable 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 Signed-off-by: Gustavo F. Padovan --- include/net/bluetooth/hci_core.h | 3 +++ include/net/bluetooth/mgmt.h | 4 ++++ net/bluetooth/hci_core.c | 25 +++++++++++++++++++++++++ net/bluetooth/hci_event.c | 5 +++++ net/bluetooth/mgmt.c | 7 ++++++- 5 files changed, 43 insertions(+), 1 deletion(-) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 20db034390b7..5803c1ebcefa 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -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; diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h index 3062fd3a65d2..b5320aa9b085 100644 --- a/include/net/bluetooth/mgmt.h +++ b/include/net/bluetooth/mgmt.h @@ -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 diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 6a4bd2d8da99..2da3f907e9b7 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -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); diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 0c11203c261a..cf9926565937 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -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); diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 0f9ef9432462..724d4fee2bd7 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -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); -- 2.20.1