From nobody Sun Feb 8 22:29:32 2026 Received: from mail.tuxedocomputers.com (mail.tuxedocomputers.com [157.90.84.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D83B4255E20; Tue, 11 Mar 2025 17:24:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=157.90.84.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741713852; cv=none; b=GZfjZewF0xyW9VrdDlkI7LFQOMsN1xep39Jo7zjjtpFIIhu4a3gZS4VL3r1HBIHtDpqwQoUC8Qwe2MLauqYl6XHqNLjnZ/mp1HtUiEZOcH+pfm9QyyBxgrQsk5DGDH05bvqHzSJPTy0PT9IebZLYEjJkB3IZi12Gdg+KyeD0/fI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741713852; c=relaxed/simple; bh=hlT7HF0xUH4Un28BekTVrlgK/meTVY4JBVvQES5tx2E=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=XHftDmGvV1radME8b+VAvnEtFIUiVaNSWRWafIqo0TDtiyW/voCgnAXJjTcWp7prpwgBXQDUNSV6H3aidl+0haY3Y2a5C+HMRImRhkax/dlt7hTwErEXkVGV/KqRtbBEJN8FE7rUqySlqKuYGm55Gsd4ll/FOuHOOq/Kat6axkg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tuxedocomputers.com; spf=pass smtp.mailfrom=tuxedocomputers.com; dkim=pass (1024-bit key) header.d=tuxedocomputers.com header.i=@tuxedocomputers.com header.b=ZMgeXicw; arc=none smtp.client-ip=157.90.84.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tuxedocomputers.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=tuxedocomputers.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=tuxedocomputers.com header.i=@tuxedocomputers.com header.b="ZMgeXicw" Received: from wse-pc.fritz.box (pd9e59f4f.dip0.t-ipconnect.de [217.229.159.79]) (Authenticated sender: wse@tuxedocomputers.com) by mail.tuxedocomputers.com (Postfix) with ESMTPA id 350A52FC0187; Tue, 11 Mar 2025 18:24:05 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxedocomputers.com; s=default; t=1741713845; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=YElZBhC56Gcos1BYu0pWkQ/xWhJtQOSgzRHBccxSMGE=; b=ZMgeXicwO7XIJUpgXvLbvxXCbZJUz2rKL2gTMNhcYPtJlNPHvutUZweLy9mN6ofLGg+IgV lHOPEjoOcZHFux0ZmgQ71MAn02B542AvDHgpFYPkO5N/QjS21i7mhK+czAn4APy/f+MHqh uTDOiatxs536bBKe7ovvFozZEN0P6AQ= Authentication-Results: mail.tuxedocomputers.com; auth=pass smtp.auth=wse@tuxedocomputers.com smtp.mailfrom=wse@tuxedocomputers.com From: Werner Sembach To: hdegoede@redhat.com, =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Werner Sembach Cc: linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v3] Input: atkbd - Fix TUXEDO NB02 notebook keyboards touchpad toggle key Date: Tue, 11 Mar 2025 18:23:50 +0100 Message-ID: <20250311172402.1095506-1-wse@tuxedocomputers.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The TUXEDO NB02 notebook keyboards touchpad toggle key sends the PS/2 scancode sequence: 0xe0, 0x5b, // Super down 0x1d, // Control down 0x76, // KEY_ZENKAKUHANKAKU down 0xf6, // KEY_ZENKAKUHANKAKU up 0x9d, // Control up 0xe0, 0xdb // Super up This driver listens to the Control + Super + Hangaku/Zenkaku key sequence to suppresses the Hangaku/Zenkaku keypress and sends a F21 keypress afterwards to conform with established userspace defaults. Note that the Hangaku/Zenkaku scancode used here is usually unused, with real Hangaku/Zenkaku keys using the tilde scancode. Signed-off-by: Werner Sembach --- MAINTAINERS | 6 ++ drivers/platform/x86/Kconfig | 2 + drivers/platform/x86/Makefile | 3 + drivers/platform/x86/tuxedo/Kbuild | 6 ++ drivers/platform/x86/tuxedo/Kconfig | 6 ++ drivers/platform/x86/tuxedo/nb02/Kbuild | 7 ++ drivers/platform/x86/tuxedo/nb02/Kconfig | 15 +++ drivers/platform/x86/tuxedo/nb02/platform.c | 107 ++++++++++++++++++++ 8 files changed, 152 insertions(+) create mode 100644 drivers/platform/x86/tuxedo/Kbuild create mode 100644 drivers/platform/x86/tuxedo/Kconfig create mode 100644 drivers/platform/x86/tuxedo/nb02/Kbuild create mode 100644 drivers/platform/x86/tuxedo/nb02/Kconfig create mode 100644 drivers/platform/x86/tuxedo/nb02/platform.c diff --git a/MAINTAINERS b/MAINTAINERS index 8e0736dc2ee0e..7139c32e96dc7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -24190,6 +24190,12 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/g= it/lenb/linux.git turbostat F: tools/power/x86/turbostat/ F: tools/testing/selftests/turbostat/ =20 +TUXEDO DRIVERS +M: Werner Sembach +L: platform-driver-x86@vger.kernel.org +S: Supported +F: drivers/platform/x86/tuxedo/ + TW5864 VIDEO4LINUX DRIVER M: Bluecherry Maintainers M: Andrey Utkin diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 0258dd879d64b..9b78a1255c08e 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -1199,3 +1199,5 @@ config P2SB The main purpose of this library is to unhide P2SB device in case firmware kept it hidden on some platforms in order to access devices behind it. + +source "drivers/platform/x86/tuxedo/Kconfig" diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index e1b1429470674..1562dcd7ad9a5 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -153,3 +153,6 @@ obj-$(CONFIG_WINMATE_FM07_KEYS) +=3D winmate-fm07-keys= .o =20 # SEL obj-$(CONFIG_SEL3350_PLATFORM) +=3D sel3350-platform.o + +# TUXEDO +obj-y +=3D tuxedo/ diff --git a/drivers/platform/x86/tuxedo/Kbuild b/drivers/platform/x86/tuxe= do/Kbuild new file mode 100644 index 0000000000000..e9c4243d438ba --- /dev/null +++ b/drivers/platform/x86/tuxedo/Kbuild @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# +# TUXEDO X86 Platform Specific Drivers +# + +obj-y +=3D nb02/ diff --git a/drivers/platform/x86/tuxedo/Kconfig b/drivers/platform/x86/tux= edo/Kconfig new file mode 100644 index 0000000000000..e463f92135780 --- /dev/null +++ b/drivers/platform/x86/tuxedo/Kconfig @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# TUXEDO X86 Platform Specific Drivers +# + +source "drivers/platform/x86/tuxedo/nb02/Kconfig" diff --git a/drivers/platform/x86/tuxedo/nb02/Kbuild b/drivers/platform/x86= /tuxedo/nb02/Kbuild new file mode 100644 index 0000000000000..8624a012cd683 --- /dev/null +++ b/drivers/platform/x86/tuxedo/nb02/Kbuild @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# TUXEDO X86 Platform Specific Drivers +# + +tuxedo_nb02_platform-y :=3D platform.o +obj-$(CONFIG_TUXEDO_NB02_PLATFORM) +=3D tuxedo_nb02_platform.o diff --git a/drivers/platform/x86/tuxedo/nb02/Kconfig b/drivers/platform/x8= 6/tuxedo/nb02/Kconfig new file mode 100644 index 0000000000000..bed56276b9b36 --- /dev/null +++ b/drivers/platform/x86/tuxedo/nb02/Kconfig @@ -0,0 +1,15 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# TUXEDO X86 Platform Specific Drivers +# + +menuconfig TUXEDO_NB02_PLATFORM + tristate "TUXEDO NB02 Platform Driver" + help + This driver implements miscellaneous things found on TUXEDO Notebooks + with board vendor NB02. For the time being this is only remapping the + touchpad toggle key to something supported by most Linux distros + out-of-the-box and suppressing an unsupported scancode from the + FN-key. + + When compiled as a module it will be called tuxedo_nb02_platform. diff --git a/drivers/platform/x86/tuxedo/nb02/platform.c b/drivers/platform= /x86/tuxedo/nb02/platform.c new file mode 100644 index 0000000000000..da67a91a4a129 --- /dev/null +++ b/drivers/platform/x86/tuxedo/nb02/platform.c @@ -0,0 +1,107 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2025 Werner Sembach wse@tuxedocomputers.com + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +struct input_dev *idev; + +static void tux_nb02_f21(struct work_struct *work __always_unused) +{ + input_report_key(idev, KEY_F21, 1); + input_report_key(idev, KEY_F21, 0); + input_sync(idev); +} +DECLARE_WORK(tux_nb02_f21_work, tux_nb02_f21); + +static const u8 tux_nb02_touchp_toggle_seq[] =3D { + 0xe0, 0x5b, // Super down + 0x1d, // Control down + 0x76, // KEY_ZENKAKUHANKAKU down + 0xf6, // KEY_ZENKAKUHANKAKU up + 0x9d, // Control up + 0xe0, 0xdb // Super up +}; + +static bool tux_nb02_i8042_filter(unsigned char data, + unsigned char str, + struct serio *port __always_unused, + void *context __always_unused) +{ + static u8 seq_pos; + + if (unlikely(str & I8042_STR_AUXDATA)) + return false; + + if (unlikely(data =3D=3D tux_nb02_touchp_toggle_seq[seq_pos])) { + ++seq_pos; + if (unlikely(data =3D=3D 0x76 || data =3D=3D 0xf6)) { + return true; + } else if (unlikely(seq_pos =3D=3D ARRAY_SIZE(tux_nb02_touchp_toggle_seq= ))) { + schedule_work(&tux_nb02_f21_work); + seq_pos =3D 0; + } + return false; + } + + seq_pos =3D 0; + return false; +} + +static const struct dmi_system_id tux_nb02_dmi_string_match[] __initconst = =3D { + { + .matches =3D { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TUXEDO"), + DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "NB02"), + }, + }, + { } +}; +MODULE_DEVICE_TABLE(dmi, tux_nb02_dmi_string_match); + +static int __init tux_nb02_plat_init(void) +{ + int ret; + + if (!dmi_check_system(tux_nb02_dmi_string_match)) + return -ENODEV; + + idev =3D input_allocate_device(); + if (!idev) + return -ENOMEM; + + idev->name =3D "TUXEDO NB02 Platform Keyboard"; + set_bit(EV_KEY, idev->evbit); + set_bit(KEY_F21, idev->keybit); + + ret =3D input_register_device(idev); + if (ret) { + input_free_device(idev); + return ret; + } + + i8042_install_filter(tux_nb02_i8042_filter, NULL); + + return 0; +} + +static void __exit tux_nb02_plat_exit(void) +{ + i8042_remove_filter(tux_nb02_i8042_filter); + input_unregister_device(idev); +} + +module_init(tux_nb02_plat_init); +module_exit(tux_nb02_plat_exit); + +MODULE_DESCRIPTION("Keyboard fix for TUXEDO NB02 devices"); +MODULE_AUTHOR("Werner Sembach "); +MODULE_LICENSE("GPL"); --=20 2.43.0