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Bluetooth: Add support for utilizing Fast Advertising Interval

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Changes made to add support for fast advertising interval
as per core 4.1 specification, section 9.3.11.2.

A peripheral device entering any of the following GAP modes and
sending either non-connectable advertising events or scannable
undirected advertising events should use adv_fast_interval2
(100ms - 150ms) for adv_fast_period(30s).

         - Non-Discoverable Mode
         - Non-Connectable Mode
         - Limited Discoverable Mode
         - General Discoverable Mode

Signed-off-by: Spoorthi Ravishankar Koppad <spoorthix.k@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Spoorthi Ravishankar Koppad 2019-07-15 17:05:22 +05:30 committed by Marcel Holtmann
parent 0e5b36bc4c
commit ad4a6795e0
2 changed files with 24 additions and 7 deletions
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2
include/net/bluetooth/hci_core.h
View File

@ -1517,6 +1517,8 @@ void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
#define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
#define DISCOV_BREDR_INQUIRY_LEN 0x08
#define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
#define DISCOV_LE_FAST_ADV_INT_MIN 100 /* msec */
#define DISCOV_LE_FAST_ADV_INT_MAX 150 /* msec */
void mgmt_fill_version_info(void *ver);
int mgmt_new_settings(struct hci_dev *hdev);

29
net/bluetooth/hci_request.c
View File

@ -1054,6 +1054,7 @@ void __hci_req_enable_advertising(struct hci_request *req)
struct hci_cp_le_set_adv_param cp;
u8 own_addr_type, enable = 0x01;
bool connectable;
u16 adv_min_interval, adv_max_interval;
u32 flags;
flags = get_adv_instance_flags(hdev, hdev->cur_adv_instance);
@ -1087,16 +1088,30 @@ void __hci_req_enable_advertising(struct hci_request *req)
return;
memset(&cp, 0, sizeof(cp));
cp.min_interval = cpu_to_le16(hdev->le_adv_min_interval);
cp.max_interval = cpu_to_le16(hdev->le_adv_max_interval);
if (connectable)
if (connectable) {
cp.type = LE_ADV_IND;
else if (get_cur_adv_instance_scan_rsp_len(hdev))
cp.type = LE_ADV_SCAN_IND;
else
cp.type = LE_ADV_NONCONN_IND;
adv_min_interval = hdev->le_adv_min_interval;
adv_max_interval = hdev->le_adv_max_interval;
} else {
if (get_cur_adv_instance_scan_rsp_len(hdev))
cp.type = LE_ADV_SCAN_IND;
else
cp.type = LE_ADV_NONCONN_IND;
if (!hci_dev_test_flag(hdev, HCI_DISCOVERABLE) ||
hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE)) {
adv_min_interval = DISCOV_LE_FAST_ADV_INT_MIN;
adv_max_interval = DISCOV_LE_FAST_ADV_INT_MAX;
} else {
adv_min_interval = hdev->le_adv_min_interval;
adv_max_interval = hdev->le_adv_max_interval;
}
}
cp.min_interval = cpu_to_le16(adv_min_interval);
cp.max_interval = cpu_to_le16(adv_max_interval);
cp.own_address_type = own_addr_type;
cp.channel_map = hdev->le_adv_channel_map;