linux-kernel - RE: [PATCH v2 0/2] Bluetooth: Add support for RTK firmware version 3 and enhanced ACL-based download acceleration

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Message-ID: <bb5d83c2efa24dd8ad271ce812581d02@realtek.com>
Date: Wed, 2 Jul 2025 03:36:16 +0000
From: Hilda Wu <hildawu@...ltek.com>
To: "marcel@...tmann.org" <marcel@...tmann.org>
CC: "luiz.dentz@...il.com" <luiz.dentz@...il.com>,
        "linux-bluetooth@...r.kernel.org" <linux-bluetooth@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Max Chou
	<max.chou@...ltek.com>,
        "alex_lu@...lsil.com.cn" <alex_lu@...lsil.com.cn>
Subject: RE: [PATCH v2 0/2] Bluetooth: Add support for RTK firmware version 3 and enhanced ACL-based download acceleration

Hi Marcel, Luiz and Maintainers,

I hope this message finds you well.

I submitted two patches for the Bluetooth subsystem recently and wanted to kindly follow up to see if you had a chance to review them:

- https://patchwork.kernel.org/project/bluetooth/patch/20250606090559.896242-2-hildawu@realtek.com/
- https://patchwork.kernel.org/project/bluetooth/patch/20250606090559.896242-3-hildawu@realtek.com/

These patches address the future chips firmware format enhancement and download firmware improve.

Please let me know if you need any further info or changes from my side.
Thank you very much for your time and consideration.

Best regards,  
Hilda

-----Original Message-----
From: Hilda Wu <hildawu@...ltek.com> 
Sent: Friday, June 6, 2025 5:06 PM
To: marcel@...tmann.org
Cc: luiz.dentz@...il.com; linux-bluetooth@...r.kernel.org; linux-kernel@...r.kernel.org; Max Chou <max.chou@...ltek.com>; alex_lu@...lsil.com.cn
Subject: [PATCH v2 0/2] Bluetooth: Add support for RTK firmware version 3 and enhanced ACL-based download acceleration

Dear Maintainers,

I am submitting a patch for the Bluetooth that introduces support for RTK firmware version 3 and implements an enhanced download mechanism through ACL to improve firmware loading times.

Patch Overview:

1. Bluetooth: btrtl: Firmware format v3 support
   - This addition ensures the latest RTK chipsets with firmware version 3
     are fully supported. It includes necessary modifications to
     accommodate new firmware structure changes.

2. Bluetooth: btrtl: Add enhanced download support
   - By leveraging ACL links for firmware transmission, the download
     process is significantly accelerated, reducing the overall time and
     enhancing performance.

Testing and Validation:

- The implementation has been tested on various RTK chipsets under Linux
  based distribution.

Impact and Benefits:

These enhancements are beneficial for future firmware v3 chips and compatible with previous firmware versions. Users can expect shortened initialization times.

Your feedback and suggestions are welcome to further refine these changes.
Thank you for considering these enhancements.

Best regards,
Hilda

---
Change in V2:
- Move structure to btrtl.h
- Fill in the missing symbols
- Fix build warnings

Hilda Wu (2):
  Bluetooth: btrtl: Firmware format v3 support
  Bluetooth: btrtl: Add enhanced download support

 drivers/bluetooth/btrtl.c | 857 +++++++++++++++++++++++++++++++++++++-
 drivers/bluetooth/btrtl.h | 122 ++++++
 drivers/bluetooth/btusb.c |   3 +
 3 files changed, 974 insertions(+), 8 deletions(-)

--
2.34.1