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Bluetooth: Simplify le_scan_disable_work()

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Merge le_scan_disable_work_complete into the main le_scan_disable_work
function and take advantage of the updated bredr_inquiry() to run the
Inquiry through hci_req_sync().

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2015-11-11 12:24:22 +02:00 committed by Marcel Holtmann
parent 7df26b5629
commit f4a2cb4d8f
1 changed files with 68 additions and 102 deletions
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170
net/bluetooth/hci_request.c
View file

@ -864,102 +864,90 @@ static void bg_scan_update(struct work_struct *work)
hci_dev_unlock(hdev);
}
static void inquiry_complete(struct hci_dev *hdev, u8 status, u16 opcode)
{
if (status) {
BT_ERR("Failed to start inquiry: status %d", status);
hci_dev_lock(hdev);
hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
hci_dev_unlock(hdev);
return;
}
}
static void le_scan_disable_work_complete(struct hci_dev *hdev, u8 status)
{
/* General inquiry access code (GIAC) */
u8 lap[3] = { 0x33, 0x8b, 0x9e };
struct hci_cp_inquiry cp;
int err;
if (status) {
BT_ERR("Failed to disable LE scanning: status %d", status);
return;
}
hdev->discovery.scan_start = 0;
switch (hdev->discovery.type) {
case DISCOV_TYPE_LE:
hci_dev_lock(hdev);
hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
hci_dev_unlock(hdev);
break;
case DISCOV_TYPE_INTERLEAVED:
hci_dev_lock(hdev);
if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY,
&hdev->quirks)) {
/* If we were running LE only scan, change discovery
* state. If we were running both LE and BR/EDR inquiry
* simultaneously, and BR/EDR inquiry is already
* finished, stop discovery, otherwise BR/EDR inquiry
* will stop discovery when finished. If we will resolve
* remote device name, do not change discovery state.
*/
if (!test_bit(HCI_INQUIRY, &hdev->flags) &&
hdev->discovery.state != DISCOVERY_RESOLVING)
hci_discovery_set_state(hdev,
DISCOVERY_STOPPED);
} else {
struct hci_request req;
hci_inquiry_cache_flush(hdev);
hci_req_init(&req, hdev);
memset(&cp, 0, sizeof(cp));
memcpy(&cp.lap, lap, sizeof(cp.lap));
cp.length = DISCOV_INTERLEAVED_INQUIRY_LEN;
hci_req_add(&req, HCI_OP_INQUIRY, sizeof(cp), &cp);
err = hci_req_run(&req, inquiry_complete);
if (err) {
BT_ERR("Inquiry request failed: err %d", err);
hci_discovery_set_state(hdev,
DISCOVERY_STOPPED);
}
}
hci_dev_unlock(hdev);
break;
}
}
static int le_scan_disable(struct hci_request *req, unsigned long opt)
{
hci_req_add_le_scan_disable(req);
return 0;
}
static int bredr_inquiry(struct hci_request *req, unsigned long opt)
{
u8 length = opt;
/* General inquiry access code (GIAC) */
u8 lap[3] = { 0x33, 0x8b, 0x9e };
struct hci_cp_inquiry cp;
BT_DBG("%s", req->hdev->name);
hci_dev_lock(req->hdev);
hci_inquiry_cache_flush(req->hdev);
hci_dev_unlock(req->hdev);
memset(&cp, 0, sizeof(cp));
memcpy(&cp.lap, lap, sizeof(cp.lap));
cp.length = length;
hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp);
return 0;
}
static void le_scan_disable_work(struct work_struct *work)
{
struct hci_dev *hdev = container_of(work, struct hci_dev,
le_scan_disable.work);
u8 status;
int err;
BT_DBG("%s", hdev->name);
cancel_delayed_work(&hdev->le_scan_restart);
err = hci_req_sync(hdev, le_scan_disable, 0, HCI_CMD_TIMEOUT, &status);
if (err)
if (!hci_dev_test_flag(hdev, HCI_LE_SCAN))
return;
le_scan_disable_work_complete(hdev, status);
cancel_delayed_work(&hdev->le_scan_restart);
hci_req_sync(hdev, le_scan_disable, 0, HCI_CMD_TIMEOUT, &status);
if (status) {
BT_ERR("Failed to disable LE scan: status 0x%02x", status);
return;
}
hdev->discovery.scan_start = 0;
/* If we were running LE only scan, change discovery state. If
* we were running both LE and BR/EDR inquiry simultaneously,
* and BR/EDR inquiry is already finished, stop discovery,
* otherwise BR/EDR inquiry will stop discovery when finished.
* If we will resolve remote device name, do not change
* discovery state.
*/
if (hdev->discovery.type == DISCOV_TYPE_LE)
goto discov_stopped;
if (hdev->discovery.type != DISCOV_TYPE_INTERLEAVED)
return;
if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks)) {
if (!test_bit(HCI_INQUIRY, &hdev->flags) &&
hdev->discovery.state != DISCOVERY_RESOLVING)
goto discov_stopped;
return;
}
hci_req_sync(hdev, bredr_inquiry, DISCOV_INTERLEAVED_INQUIRY_LEN,
HCI_CMD_TIMEOUT, &status);
if (status) {
BT_ERR("Inquiry failed: status 0x%02x", status);
goto discov_stopped;
}
return;
discov_stopped:
hci_dev_lock(hdev);
hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
hci_dev_unlock(hdev);
}
static void le_scan_restart_work_complete(struct hci_dev *hdev, u8 status)
@ -1042,28 +1030,6 @@ static void le_scan_restart_work(struct work_struct *work)
le_scan_restart_work_complete(hdev, status);
}
static int bredr_inquiry(struct hci_request *req, unsigned long opt)
{
u8 length = opt;
struct hci_cp_inquiry cp;
/* General inquiry access code (GIAC) */
u8 lap[3] = { 0x33, 0x8b, 0x9e };
BT_DBG("%s", req->hdev->name);
hci_dev_lock(req->hdev);
hci_inquiry_cache_flush(req->hdev);
hci_dev_unlock(req->hdev);
memset(&cp, 0, sizeof(cp));
memcpy(&cp.lap, lap, sizeof(cp.lap));
cp.length = length;
hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp);
return 0;
}
static void cancel_adv_timeout(struct hci_dev *hdev)
{
if (hdev->adv_instance_timeout) {