For new advertising features, it will be important for userspace to know the capabilities of the controller and kernel. If the controller and kernel support extended advertising, we include flags indicating hardware offloading support and support for setting tx power of adv instances.
In the future, vendor-specific commands may allow the setting of tx power in advertising instances, but for now this feature is only marked available if extended advertising is supported. This change is manually verified in userspace by ensuring the advertising manager's supported_flags field is updated with new flags on hatch chromebook (ext advertising supported). Signed-off-by: Daniel Winkler <[email protected]> --- include/net/bluetooth/mgmt.h | 2 ++ net/bluetooth/mgmt.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h index beae5c3980f03b..9ad505b9e694e4 100644 --- a/include/net/bluetooth/mgmt.h +++ b/include/net/bluetooth/mgmt.h @@ -572,6 +572,8 @@ struct mgmt_rp_add_advertising { #define MGMT_ADV_FLAG_SEC_1M BIT(7) #define MGMT_ADV_FLAG_SEC_2M BIT(8) #define MGMT_ADV_FLAG_SEC_CODED BIT(9) +#define MGMT_ADV_FLAG_CAN_SET_TX_POWER BIT(10) +#define MGMT_ADV_FLAG_HW_OFFLOAD BIT(11) #define MGMT_ADV_FLAG_SEC_MASK (MGMT_ADV_FLAG_SEC_1M | MGMT_ADV_FLAG_SEC_2M | \ MGMT_ADV_FLAG_SEC_CODED) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 8041c9cebd5cf6..c5d128f331c6dc 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -7202,6 +7202,8 @@ static u32 get_supported_adv_flags(struct hci_dev *hdev) if (ext_adv_capable(hdev)) { flags |= MGMT_ADV_FLAG_SEC_1M; + flags |= MGMT_ADV_FLAG_HW_OFFLOAD; + flags |= MGMT_ADV_FLAG_CAN_SET_TX_POWER; if (hdev->le_features[1] & HCI_LE_PHY_2M) flags |= MGMT_ADV_FLAG_SEC_2M; -- 2.28.0.297.g1956fa8f8d-goog
