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Bluetooth: Use controller sets when available

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This makes use of controller sets when using Extended Advertising
feature thus offloading the scheduling to the controller.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Luiz Augusto von Dentz 2019-06-03 13:48:42 +03:00 committed by Marcel Holtmann
parent c49a8682fc
commit 1d0fac2c38
4 changed files with 37 additions and 10 deletions
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2
net/bluetooth/hci_conn.c
View File

@ -915,7 +915,7 @@ static void hci_req_directed_advertising(struct hci_request *req,
sizeof(cp), &cp);
}
__hci_req_enable_ext_advertising(req);
__hci_req_enable_ext_advertising(req, 0x00);
} else {
struct hci_cp_le_set_adv_param cp;

3
net/bluetooth/hci_core.c
View File

@ -2827,7 +2827,7 @@ int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
memset(adv_instance->scan_rsp_data, 0,
sizeof(adv_instance->scan_rsp_data));
} else {
if (hdev->adv_instance_cnt >= HCI_MAX_ADV_INSTANCES ||
if (hdev->adv_instance_cnt >= hdev->le_num_of_adv_sets ||
instance < 1 || instance > HCI_MAX_ADV_INSTANCES)
return -EOVERFLOW;
@ -3195,6 +3195,7 @@ struct hci_dev *hci_alloc_dev(void)
hdev->le_min_key_size = SMP_MIN_ENC_KEY_SIZE;
hdev->le_tx_def_phys = HCI_LE_SET_PHY_1M;
hdev->le_rx_def_phys = HCI_LE_SET_PHY_1M;
hdev->le_num_of_adv_sets = HCI_MAX_ADV_INSTANCES;
hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT;
hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT;

40
net/bluetooth/hci_request.c
View File

@ -1601,7 +1601,7 @@ int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance)
cp.own_addr_type = own_addr_type;
cp.channel_map = hdev->le_adv_channel_map;
cp.tx_power = 127;
cp.handle = 0;
cp.handle = instance;
if (flags & MGMT_ADV_FLAG_SEC_2M) {
cp.primary_phy = HCI_ADV_PHY_1M;
@ -1643,11 +1643,21 @@ int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance)
return 0;
}
void __hci_req_enable_ext_advertising(struct hci_request *req)
int __hci_req_enable_ext_advertising(struct hci_request *req, u8 instance)
{
struct hci_dev *hdev = req->hdev;
struct hci_cp_le_set_ext_adv_enable *cp;
struct hci_cp_ext_adv_set *adv_set;
u8 data[sizeof(*cp) + sizeof(*adv_set) * 1];
struct adv_info *adv_instance;
if (instance > 0) {
adv_instance = hci_find_adv_instance(hdev, instance);
if (!adv_instance)
return -EINVAL;
} else {
adv_instance = NULL;
}
cp = (void *) data;
adv_set = (void *) cp->data;
@ -1659,11 +1669,23 @@ void __hci_req_enable_ext_advertising(struct hci_request *req)
memset(adv_set, 0, sizeof(*adv_set));
adv_set->handle = 0;
adv_set->handle = instance;
/* Set duration per instance since controller is responsible for
* scheduling it.
*/
if (adv_instance && adv_instance->duration) {
u16 duration = adv_instance->duration * MSEC_PER_SEC;
/* Time = N * 10 ms */
adv_set->duration = cpu_to_le16(duration / 10);
}
hci_req_add(req, HCI_OP_LE_SET_EXT_ADV_ENABLE,
sizeof(*cp) + sizeof(*adv_set) * cp->num_of_sets,
data);
return 0;
}
int __hci_req_start_ext_adv(struct hci_request *req, u8 instance)
@ -1679,7 +1701,7 @@ int __hci_req_start_ext_adv(struct hci_request *req, u8 instance)
return err;
__hci_req_update_scan_rsp_data(req, instance);
__hci_req_enable_ext_advertising(req);
__hci_req_enable_ext_advertising(req, instance);
return 0;
}
@ -1723,10 +1745,13 @@ int __hci_req_schedule_adv_instance(struct hci_request *req, u8 instance,
adv_instance->remaining_time =
adv_instance->remaining_time - timeout;
hdev->adv_instance_timeout = timeout;
queue_delayed_work(hdev->req_workqueue,
/* Only use work for scheduling instances with legacy advertising */
if (!ext_adv_capable(hdev)) {
hdev->adv_instance_timeout = timeout;
queue_delayed_work(hdev->req_workqueue,
&hdev->adv_instance_expire,
msecs_to_jiffies(timeout * 1000));
}
/* If we're just re-scheduling the same instance again then do not
* execute any HCI commands. This happens when a single instance is
@ -2744,7 +2769,8 @@ static int powered_update_hci(struct hci_request *req, unsigned long opt)
if (!ext_adv_capable(hdev))
__hci_req_enable_advertising(req);
else if (!err)
__hci_req_enable_ext_advertising(req);
__hci_req_enable_ext_advertising(req,
0x00);
}
} else if (!list_empty(&hdev->adv_instances)) {
struct adv_info *adv_instance;

2
net/bluetooth/hci_request.h
View File

@ -83,7 +83,7 @@ void hci_req_clear_adv_instance(struct hci_dev *hdev, struct sock *sk,
int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance);
int __hci_req_start_ext_adv(struct hci_request *req, u8 instance);
void __hci_req_enable_ext_advertising(struct hci_request *req);
int __hci_req_enable_ext_advertising(struct hci_request *req, u8 instance);
void __hci_req_clear_ext_adv_sets(struct hci_request *req);
int hci_get_random_address(struct hci_dev *hdev, bool require_privacy,
bool use_rpa, struct adv_info *adv_instance,