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Sun, 15 Aug 2021 05:17:25 -0700 (PDT) From: Joseph Hwang To: linux-bluetooth@vger.kernel.org, marcel@holtmann.org, luiz.dentz@gmail.com, pali@kernel.org Cc: josephsih@google.com, chromeos-bluetooth-upstreaming@chromium.org, Chethan T N , Miao-chen Chou , Kiran K , Joseph Hwang , Johan Hedberg , linux-kernel@vger.kernel.org Subject: [PATCH v9 2/5] Bluetooth: btintel: support link statistics telemetry events Date: Sun, 15 Aug 2021 20:17:14 +0800 Message-Id: <20210815201611.v9.2.Ifb35feb49ec588106b256c508259500583582125@changeid> X-Mailer: git-send-email 2.33.0.rc1.237.g0d66db33f3-goog In-Reply-To: <20210815201611.v9.1.I41aec59e65ffd3226d368dabeb084af13cc133c8@changeid> References: <20210815201611.v9.1.I41aec59e65ffd3226d368dabeb084af13cc133c8@changeid> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Chethan T N This patch supports the link statistics telemetry events for intel controllers Reviewed-by: Miao-chen Chou Signed-off-by: Chethan T N Signed-off-by: Kiran K Signed-off-by: Joseph Hwang --- (no changes since v7) Changes in v7: - Rebase on Tedd's patches that moved functionality from btusb to btintel. drivers/bluetooth/btintel.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index 0fe093fa5158..643e2194ca01 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -1285,8 +1285,10 @@ static int btintel_read_debug_features(struct hci_dev *hdev, static int btintel_set_debug_features(struct hci_dev *hdev, const struct intel_debug_features *features) { - u8 mask[11] = { 0x0a, 0x92, 0x02, 0x07, 0x00, 0x00, 0x00, 0x00, + u8 mask[11] = { 0x0a, 0x92, 0x02, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + u8 period[5] = { 0x04, 0x91, 0x02, 0x05, 0x00 }; + u8 trace_enable = 0x02; struct sk_buff *skb; if (!features) @@ -1303,8 +1305,24 @@ static int btintel_set_debug_features(struct hci_dev *hdev, PTR_ERR(skb)); return PTR_ERR(skb); } + kfree_skb(skb); + + skb = __hci_cmd_sync(hdev, 0xfc8b, 5, period, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "Setting periodicity for link statistics traces failed (%ld)", + PTR_ERR(skb)); + return PTR_ERR(skb); + } + kfree_skb(skb); + skb = __hci_cmd_sync(hdev, 0xfca1, 1, &trace_enable, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "Enable tracing of link statistics events failed (%ld)", + PTR_ERR(skb)); + return PTR_ERR(skb); + } kfree_skb(skb); + return 0; }