diff options
| author | Alain Michaud <alainm@chromium.org> | 2020-07-07 17:46:06 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2020-07-07 17:53:58 +0200 |
| commit | 15d8ce05ebec37a0d701cde768bbf21349f2329d (patch) | |
| tree | bfc1d1c4c089faf76931628e84b0317fe01af863 | |
| parent | b83764f9220a4a14525657466f299850bbc98de9 (diff) | |
Bluetooth: le_simult_central_peripheral experimental feature
This patch adds an le_simult_central_peripheral features which allows a
clients to determine if the controller is able to support peripheral and
central connections separately and at the same time.
Signed-off-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| -rw-r--r-- | net/bluetooth/mgmt.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 5e9b9728eeac..d29da80e38fe 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -3753,12 +3753,19 @@ static const u8 debug_uuid[16] = { }; #endif +/* 671b10b5-42c0-4696-9227-eb28d1b049d6 */ +static const u8 simult_central_periph_uuid[16] = { + 0xd6, 0x49, 0xb0, 0xd1, 0x28, 0xeb, 0x27, 0x92, + 0x96, 0x46, 0xc0, 0x42, 0xb5, 0x10, 0x1b, 0x67, +}; + static int read_exp_features_info(struct sock *sk, struct hci_dev *hdev, void *data, u16 data_len) { - char buf[42]; + char buf[44]; struct mgmt_rp_read_exp_features_info *rp = (void *)buf; u16 idx = 0; + u32 flags; bt_dev_dbg(hdev, "sock %p", sk); @@ -3766,7 +3773,7 @@ static int read_exp_features_info(struct sock *sk, struct hci_dev *hdev, #ifdef CONFIG_BT_FEATURE_DEBUG if (!hdev) { - u32 flags = bt_dbg_get() ? BIT(0) : 0; + flags = bt_dbg_get() ? BIT(0) : 0; memcpy(rp->features[idx].uuid, debug_uuid, 16); rp->features[idx].flags = cpu_to_le32(flags); @@ -3774,6 +3781,20 @@ static int read_exp_features_info(struct sock *sk, struct hci_dev *hdev, } #endif + if (hdev) { + if (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && + (hdev->le_states[4] & 0x08) && /* Central */ + (hdev->le_states[4] & 0x40) && /* Peripheral */ + (hdev->le_states[3] & 0x10)) /* Simultaneous */ + flags = BIT(0); + else + flags = 0; + + memcpy(rp->features[idx].uuid, simult_central_periph_uuid, 16); + rp->features[idx].flags = cpu_to_le32(flags); + idx++; + } + rp->feature_count = cpu_to_le16(idx); /* After reading the experimental features information, enable |