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Bluetooth: Update stop_discovery to use HCI request

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This patch modifies the stop_discovery function so it uses the HCI
request framework.

The HCI request is built according to the current discovery state
(inquiry, LE scanning or name resolving) and a complete callback is
register to handle the command complete event for the stop discovery
command. This way, we move all stop_discovery mgmt handling code
spread in hci_event.c to a single place in mgmt.c.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Andre Guedes 2013-04-30 15:29:33 -03:00 committed by Gustavo Padovan
parent 4c87eaab01
commit 0e05bba6f6
1 changed files with 40 additions and 7 deletions
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47
net/bluetooth/mgmt.c
View file

@ -2808,6 +2808,23 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
return err;
}
static void stop_discovery_complete(struct hci_dev *hdev, u8 status)
{
BT_DBG("status %d", status);
hci_dev_lock(hdev);
if (status) {
mgmt_stop_discovery_failed(hdev, status);
goto unlock;
}
hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
unlock:
hci_dev_unlock(hdev);
}
static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
u16 len)
{
@ -2815,6 +2832,8 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
struct pending_cmd *cmd;
struct hci_cp_remote_name_req_cancel cp;
struct inquiry_entry *e;
struct hci_request req;
struct hci_cp_le_set_scan_enable enable_cp;
int err;
BT_DBG("%s", hdev->name);
@ -2841,12 +2860,20 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
goto unlock;
}
hci_req_init(&req, hdev);
switch (hdev->discovery.state) {
case DISCOVERY_FINDING:
if (test_bit(HCI_INQUIRY, &hdev->flags))
err = hci_cancel_inquiry(hdev);
else
err = hci_cancel_le_scan(hdev);
if (test_bit(HCI_INQUIRY, &hdev->flags)) {
hci_req_add(&req, HCI_OP_INQUIRY_CANCEL, 0, NULL);
} else {
cancel_delayed_work(&hdev->le_scan_disable);
memset(&enable_cp, 0, sizeof(enable_cp));
enable_cp.enable = LE_SCAN_DISABLE;
hci_req_add(&req, HCI_OP_LE_SET_SCAN_ENABLE,
sizeof(enable_cp), &enable_cp);
}
break;
@ -2864,16 +2891,22 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
}
bacpy(&cp.bdaddr, &e->data.bdaddr);
err = hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ_CANCEL,
sizeof(cp), &cp);
hci_req_add(&req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp),
&cp);
break;
default:
BT_DBG("unknown discovery state %u", hdev->discovery.state);
err = -EFAULT;
mgmt_pending_remove(cmd);
err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
MGMT_STATUS_FAILED, &mgmt_cp->type,
sizeof(mgmt_cp->type));
goto unlock;
}
err = hci_req_run(&req, stop_discovery_complete);
if (err < 0)
mgmt_pending_remove(cmd);
else