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authorDaniel Winkler <danielwinkler@google.com>2020-12-03 12:12:50 -0800
committerJohan Hedberg <johan.hedberg@intel.com>2020-12-07 17:01:33 +0200
commit9bf9f4b6301ffbd51674e1168f8eeed214d2cf99 (patch)
tree186f37c3261b8e6c8754dbb10a1ae3ecefc04c1d
parent12410572833a283ce92fcf9679ca8a2f372097ee (diff)
Bluetooth: Use intervals and tx power from mgmt cmds
This patch takes the min/max intervals and tx power optionally provided in mgmt interface, stores them in the advertisement struct, and uses them when configuring the hci requests. While tx power is not used if extended advertising is unavailable, software rotation will use the min and max advertising intervals specified by the client. This change is validated manually by ensuring the min/max intervals are propagated to the controller on both hatch (extended advertising) and kukui (no extended advertising) chromebooks, and that tx power is propagated correctly on hatch. These tests are performed with multiple advertisements simultaneously. Reviewed-by: Sonny Sasaka <sonnysasaka@chromium.org> Signed-off-by: Daniel Winkler <danielwinkler@google.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
-rw-r--r--include/net/bluetooth/hci_core.h5
-rw-r--r--net/bluetooth/hci_core.c8
-rw-r--r--net/bluetooth/hci_request.c29
-rw-r--r--net/bluetooth/mgmt.c8
4 files changed, 34 insertions, 16 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 3c2e205f226a..88988d4fd347 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -230,6 +230,8 @@ struct adv_info {
__u16 scan_rsp_len;
__u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
__s8 tx_power;
+ __u32 min_interval;
+ __u32 max_interval;
bdaddr_t random_addr;
bool rpa_expired;
struct delayed_work rpa_expired_cb;
@@ -1303,7 +1305,8 @@ struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
u16 adv_data_len, u8 *adv_data,
u16 scan_rsp_len, u8 *scan_rsp_data,
- u16 timeout, u16 duration);
+ u16 timeout, u16 duration, s8 tx_power,
+ u32 min_interval, u32 max_interval);
int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
u16 adv_data_len, u8 *adv_data,
u16 scan_rsp_len, u8 *scan_rsp_data);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 46ec523d96a7..8855d07534ed 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2951,7 +2951,8 @@ static void adv_instance_rpa_expired(struct work_struct *work)
int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
u16 adv_data_len, u8 *adv_data,
u16 scan_rsp_len, u8 *scan_rsp_data,
- u16 timeout, u16 duration)
+ u16 timeout, u16 duration, s8 tx_power,
+ u32 min_interval, u32 max_interval)
{
struct adv_info *adv_instance;
@@ -2979,6 +2980,9 @@ int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
adv_instance->flags = flags;
adv_instance->adv_data_len = adv_data_len;
adv_instance->scan_rsp_len = scan_rsp_len;
+ adv_instance->min_interval = min_interval;
+ adv_instance->max_interval = max_interval;
+ adv_instance->tx_power = tx_power;
if (adv_data_len)
memcpy(adv_instance->adv_data, adv_data, adv_data_len);
@@ -2995,8 +2999,6 @@ int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
else
adv_instance->duration = duration;
- adv_instance->tx_power = HCI_TX_POWER_INVALID;
-
INIT_DELAYED_WORK(&adv_instance->rpa_expired_cb,
adv_instance_rpa_expired);
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index d0d0fbbb3fa5..80dc451d6e12 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -1488,6 +1488,7 @@ static bool is_advertising_allowed(struct hci_dev *hdev, bool connectable)
void __hci_req_enable_advertising(struct hci_request *req)
{
struct hci_dev *hdev = req->hdev;
+ struct adv_info *adv_instance;
struct hci_cp_le_set_adv_param cp;
u8 own_addr_type, enable = 0x01;
bool connectable;
@@ -1495,6 +1496,7 @@ void __hci_req_enable_advertising(struct hci_request *req)
u32 flags;
flags = get_adv_instance_flags(hdev, hdev->cur_adv_instance);
+ adv_instance = hci_find_adv_instance(hdev, hdev->cur_adv_instance);
/* If the "connectable" instance flag was not set, then choose between
* ADV_IND and ADV_NONCONN_IND based on the global connectable setting.
@@ -1526,11 +1528,16 @@ void __hci_req_enable_advertising(struct hci_request *req)
memset(&cp, 0, sizeof(cp));
- if (connectable) {
- cp.type = LE_ADV_IND;
-
+ if (adv_instance) {
+ adv_min_interval = adv_instance->min_interval;
+ adv_max_interval = adv_instance->max_interval;
+ } else {
adv_min_interval = hdev->le_adv_min_interval;
adv_max_interval = hdev->le_adv_max_interval;
+ }
+
+ if (connectable) {
+ cp.type = LE_ADV_IND;
} else {
if (adv_cur_instance_is_scannable(hdev))
cp.type = LE_ADV_SCAN_IND;
@@ -1541,9 +1548,6 @@ void __hci_req_enable_advertising(struct hci_request *req)
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;
}
}
@@ -2119,9 +2123,15 @@ int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance)
memset(&cp, 0, sizeof(cp));
- /* In ext adv set param interval is 3 octets */
- hci_cpu_to_le24(hdev->le_adv_min_interval, cp.min_interval);
- hci_cpu_to_le24(hdev->le_adv_max_interval, cp.max_interval);
+ if (adv_instance) {
+ hci_cpu_to_le24(adv_instance->min_interval, cp.min_interval);
+ hci_cpu_to_le24(adv_instance->max_interval, cp.max_interval);
+ cp.tx_power = adv_instance->tx_power;
+ } else {
+ hci_cpu_to_le24(hdev->le_adv_min_interval, cp.min_interval);
+ hci_cpu_to_le24(hdev->le_adv_max_interval, cp.max_interval);
+ cp.tx_power = HCI_ADV_TX_POWER_NO_PREFERENCE;
+ }
secondary_adv = (flags & MGMT_ADV_FLAG_SEC_MASK);
@@ -2144,7 +2154,6 @@ 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 = instance;
if (flags & MGMT_ADV_FLAG_SEC_2M) {
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index ec6b520be368..668a62c8181e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -7533,7 +7533,10 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
cp->adv_data_len, cp->data,
cp->scan_rsp_len,
cp->data + cp->adv_data_len,
- timeout, duration);
+ timeout, duration,
+ HCI_ADV_TX_POWER_NO_PREFERENCE,
+ hdev->le_adv_min_interval,
+ hdev->le_adv_max_interval);
if (err < 0) {
err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
MGMT_STATUS_FAILED);
@@ -7741,7 +7744,8 @@ static int add_ext_adv_params(struct sock *sk, struct hci_dev *hdev,
/* Create advertising instance with no advertising or response data */
err = hci_add_adv_instance(hdev, cp->instance, flags,
- 0, NULL, 0, NULL, timeout, duration);
+ 0, NULL, 0, NULL, timeout, duration,
+ tx_power, min_interval, max_interval);
if (err < 0) {
err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_PARAMS,