linux-kernel - [PATCH v3 0/3] Bluetooth: Add btrealtek data struct and improve SCO sound quality of RTK chips

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Date:   Thu, 29 Sep 2022 19:44:23 +0800
From:   <hildawu@...ltek.com>
To:     <marcel@...tmann.org>
CC:     <johan.hedberg@...il.com>, <luiz.dentz@...il.com>,
        <linux-bluetooth@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <apusaka@...omium.org>, <yinghsu@...omium.org>,
        <max.chou@...ltek.com>, <alex_lu@...lsil.com.cn>,
        <kidman@...ltek.com>
Subject: [PATCH v3 0/3] Bluetooth: Add btrealtek data struct and improve SCO sound quality of RTK chips

From: Hilda Wu <hildawu@...ltek.com>

Add btrealtek data struct and use definition of vendor flags to manage the
specific chip.

The Bluetooth: btusb: Workaround for spotty SCO quality patch is for
filter out duplicate packet for avoiding spotty SCO quality.
- The comparison of btrtl_usb_recv_isoc here is for invalid handle,
the invalid handle shouldn't appear.
So we try to find out the rule and filter out this.

The Bluetooth: btsub: Ignore zero length of USB packets on ALT 6 patch is
for some Realtek chips need to transmit mSBC data continuously without the
zero length of USB packets.

---
Changes in v3:
 - Use the vendor function to replace btus_recv_isoc.
 - For ignore_usb_alt6_packet_flow, manage the common flag by the vendor private flag.

Changes in v2:
 - Set the proper priv_size to hci_alloc_dev_priv().
 - Separate commits for functions.
---
Thank you for your review and suggestions.

Hilda Wu (3):
  Bluetooth: btrtl: Add btrealtek data struct
  Bluetooth: btusb: Workaround for spotty SCO quality
  Bluetooth:btsub:Ignore zero length of USB packets on ALT 6 for
    specific chip

 drivers/bluetooth/btrtl.c |  34 ++++++++++++
 drivers/bluetooth/btrtl.h |  29 +++++++++++
 drivers/bluetooth/btusb.c | 105 ++++++++++++++++++++++++++++++++++++--
 3 files changed, 165 insertions(+), 3 deletions(-)

-- 
2.17.1