linux-kernel - [PATCH] Bluetooth: btusb: Enable MSFT extension for Intel next generation controllers

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Message-Id: <20210729094319.1.Ib7a90fea41e56da34bab6811c2ecf6b255a14f51@changeid>
Date:   Thu, 29 Jul 2021 09:43:21 -0700
From:   Michael Sun <michaelfsun@...gle.com>
To:     linux-bluetooth@...r.kernel.org
Cc:     chromeos-bluetooth-upstreaming@...omium.org,
        Chethan T N <chethan.tumkur.narayan@...el.com>,
        Michael Sun <michaelfsun@...gle.com>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Marcel Holtmann <marcel@...tmann.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] Bluetooth: btusb: Enable MSFT extension for Intel next
 generation controllers

From: Chethan T N <chethan.tumkur.narayan@...el.com>

The Intel TyphoonPeak, GarfieldPeak Bluetooth controllers
support the Microsoft vendor extension and they are using
0xFC1E for VsMsftOpCode.

Verified on a GarfieldPeak device through bluetoothctl show

Signed-off-by: Chethan T N <chethan.tumkur.narayan@...el.com>
Signed-off-by: Michael Sun <michaelfsun@...gle.com>
---

 drivers/bluetooth/btusb.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 1876a960b3dc..23cf6e98173b 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3031,6 +3031,17 @@ static int btusb_setup_intel_newgen(struct hci_dev *hdev)
 	btintel_version_info_tlv(hdev, &version);
 
 finish:
+	/* All Intel new genration controllers support the Microsoft vendor
+	 * extension are using 0xFC1E for VsMsftOpCode.
+	 */
+	switch (INTEL_HW_VARIANT(version.cnvi_bt)) {
+	case 0x17:
+	case 0x18:
+	case 0x19:
+		hci_set_msft_opcode(hdev, 0xFC1E);
+		break;
+	}
+
 	/* Set the event mask for Intel specific vendor events. This enables
 	 * a few extra events that are useful during general operation. It
 	 * does not enable any debugging related events.
-- 
2.32.0.432.gabb21c7263-goog