linux-kernel - [PATCH v6 0/2] hardware-privacy-implementation-for-dell-laptop

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Date:   Sun,  4 Apr 2021 16:31:08 +0800
From:   Perry Yuan <Perry.Yuan@...l.com>
To:     pobrn@...tonmail.com, pierre-louis.bossart@...ux.intel.com,
        oder_chiou@...ltek.com, perex@...ex.cz, tiwai@...e.com,
        hdegoede@...hat.com, mgross@...ux.intel.com,
        Mario.Limonciello@...l.com
Cc:     lgirdwood@...il.com, broonie@...nel.org,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, Perry.Yuan@...l.com,
        mario.limonciello@...look.com, Dell.Client.Kernel@...l.com
Subject: [PATCH v6 0/2] hardware-privacy-implementation-for-dell-laptop

From: Perry Yuan <perry_yuan@...l.com>

Hi All,
This patch set is a new driver for Dell mobile platform that has the
hardware privacy feature including micmute,camera mute.

For micmute led control, the hotkey is Fn + F4, it is a hardware based
mute state, and new privacy will prevent micphone void input from
hardware layer, any application cannot get voice data when micmute
activated.

Camera mute use a new hardware design to control the camrea shutter.
When video is muted, no OS application should be functionally able to
capture images of the person/environment in front of the system

Older history:
[1]https://patchwork.kernel.org/project/platform-driver-x86/patch/20201228132855.17544-1-Perry_Yuan@Dell.com/
[2]https://patchwork.kernel.org/project/alsa-devel/patch/20201103125859.8759-1-Perry_Yuan@Dell.com/#23733605
[3]https://www.spinics.net/lists/alsa-devel/msg120537.html
[4]https://github.com/thesofproject/linux/pull/2660
[5]https://github.com/thesofproject/linux/issues/2496

Perry Yuan (2):
  platform/x86: dell-privacy: Add support for Dell hardware privacy
  ASoC: rt715:add micmute led state control supports

 .../testing/sysfs-platform-dell-privacy-wmi   |  55 +++
 drivers/platform/x86/dell/Kconfig             |  14 +
 drivers/platform/x86/dell/Makefile            |   1 +
 drivers/platform/x86/dell/dell-laptop.c       |  23 +-
 drivers/platform/x86/dell/dell-privacy-wmi.c  | 441 ++++++++++++++++++
 drivers/platform/x86/dell/dell-privacy-wmi.h  |  32 ++
 drivers/platform/x86/dell/dell-wmi.c          |  13 +-
 sound/soc/codecs/rt715-sdca.c                 |  41 +-
 sound/soc/codecs/rt715.c                      |  41 ++
 9 files changed, 653 insertions(+), 8 deletions(-)
 create mode 100644 Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
 create mode 100644 drivers/platform/x86/dell/dell-privacy-wmi.c
 create mode 100644 drivers/platform/x86/dell/dell-privacy-wmi.h

-- 
2.25.1