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authorSean Wang <sean.wang@mediatek.com>2022-02-08 21:17:41 +0300
committerMarcel Holtmann <marcel@holtmann.org>2022-03-04 18:10:50 +0300
commite4412654e260842e1a94ffe0d4026e8a6fd34246 (patch)
tree2ccdf47b00e8287a588f7dcb7583a3367ba602e4 /drivers/bluetooth
parent8fafe702253d50bf90daf324ae86b5ad5ac8a5e1 (diff)
downloadlinux-e4412654e260842e1a94ffe0d4026e8a6fd34246.tar.xz
Bluetooth: mediatek: fix the conflict between mtk and msft vendor event
There is a conflict between MediaTek wmt event and msft vendor extension logic in the core layer since 145373cb1b1f ("Bluetooth: Add framework for Microsoft vendor extension") was introduced because we changed the type of mediatek wmt event to the type of msft vendor event in the driver. But the purpose we reported mediatek event to the core layer is for the diagnostic purpose with that we are able to see the full packet trace via monitoring socket with btmon. Thus, it is harmless we keep the original type of mediatek vendor event here to avoid breaking the msft extension function especially they can be supported by Mediatek chipset like MT7921 , MT7922 devices and future devices. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/btmtk.h1
-rw-r--r--drivers/bluetooth/btmtksdio.c9
-rw-r--r--drivers/bluetooth/btusb.c8
3 files changed, 2 insertions, 16 deletions
diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h
index 8960a5f89d48..013850fd2055 100644
--- a/drivers/bluetooth/btmtk.h
+++ b/drivers/bluetooth/btmtk.h
@@ -5,6 +5,7 @@
#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
#define FIRMWARE_MT7961 "mediatek/BT_RAM_CODE_MT7961_1_2_hdr.bin"
+#define HCI_EV_WMT 0xe4
#define HCI_WMT_MAX_EVENT_SIZE 64
#define BTMTK_WMT_REG_WRITE 0x1
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 8e200e80d2f6..cbb09e1b823d 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -381,13 +381,6 @@ static int btmtksdio_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
struct hci_event_hdr *hdr = (void *)skb->data;
int err;
- /* Fix up the vendor event id with 0xff for vendor specific instead
- * of 0xe4 so that event send via monitoring socket can be parsed
- * properly.
- */
- if (hdr->evt == 0xe4)
- hdr->evt = HCI_EV_VENDOR;
-
/* When someone waits for the WMT event, the skb is being cloned
* and being processed the events from there then.
*/
@@ -403,7 +396,7 @@ static int btmtksdio_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
if (err < 0)
goto err_free_skb;
- if (hdr->evt == HCI_EV_VENDOR) {
+ if (hdr->evt == HCI_EV_WMT) {
if (test_and_clear_bit(BTMTKSDIO_TX_WAIT_VND_EVT,
&bdev->tx_state)) {
/* Barrier to sync with other CPUs */
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 9e0d59d4382a..558151f2f150 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2256,7 +2256,6 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
{
struct hci_dev *hdev = urb->context;
struct btusb_data *data = hci_get_drvdata(hdev);
- struct hci_event_hdr *hdr;
struct sk_buff *skb;
int err;
@@ -2276,13 +2275,6 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
- hdr = (void *)skb->data;
- /* Fix up the vendor event id with 0xff for vendor specific
- * instead of 0xe4 so that event send via monitoring socket can
- * be parsed properly.
- */
- hdr->evt = 0xff;
-
/* When someone waits for the WMT event, the skb is being cloned
* and being processed the events from there then.
*/