| commit | e1e65cb0f1cad6117d48503f2f78d115caecc55b | [log] [tgz] |
|---|---|---|
| author | Michael Niewöhner <foss@mniewoehner.de> | Wed Dec 01 19:09:13 2021 +0100 |
| committer | Michael Niewöhner <foss@mniewoehner.de> | Fri Nov 11 22:42:46 2022 +0000 |
| tree | b6d42b3968fd2e6d57062031a48ac65123bb03ca | |
| parent | 064c6ced40a0acd7c4127414ee04c90b3a458751 [diff] |
ec/clevo/it5570e: add driver for EC used on various Clevo laptops
This adds a driver for the ITE IT5570E EC in combination with Clevo
vendor EC firmware. The interface is mostly identical on various laptop
models. Thus, we have implemented one common driver to support them all.
The following features were implemented:
- Basics like battery, ac, etc.
- Suspend/hibernate support: S0ix, S3*, S4/S5
- Save/restore of keyboard backlight level during S0ix without the need
for Clevo vendor software (ControlCenter)
- Flexicharger
- Fn keys (backlight, volume, airplane etc.)
- Various configuration options via Kconfig / CMOS options
* Note: S3 support works at least on L140CU (Cometlake), but it's not
enabled for this board because S0ix is used.
Not implemented, yet:
- Type-C UCSI: the EC firmware seems to be buggy (with vendor fw, too)
- dGPU support is WIP
An example of how this driver can be hooked up by a board can be seen in
in change CB:59850, where support for the L140MU is added.
Known issues:
- Touchpad toggle:
The touchpad toggle (Fn-F1) has two modes, Ctrl-Alt-F9 mode and
keycodes 0xf7/0xf8 mode. Ctrl-Alt-F9 is the native touchpad toggle
shortcut on Windows. On Linux this would switch to virtual console 9,
if enabled. Thus, one should use the keycodes mode and add udev
rules as specified in [1]. If VT9 is disabled, Ctrl-Alt-F9 mode could
be used to set up a keyboard shortcut command toggling the touchpad.
- Multi-fan systems
The Clevo NV41MZ (w/o dGPU) has two fans that should be in-sync.
However, the second fan does not spin. This needs further
investigation.
[1] https://docs.dasharo.com/variants/clevo_nv41/post_install/
Testing the various functionalities of this EC driver was done in the
changes hooking up this driver for the boards.
Change-Id: Ic8c0bee9002ad9edcd10c83b775fc723744caaa0
Co-authored-by: Michał Kopeć <michal.kopec@3mdeb.com>
Co-authored-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Co-authored-by: Michael Niewöhner <foss@mniewoehner.de>
Signed-off-by: Michał Kopeć <michal.kopec@3mdeb.com>
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68791
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload.
With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required.
coreboot was formerly known as LinuxBIOS.
After the basic initialization of the hardware has been performed, any desired "payload" can be started by coreboot.
See https://www.coreboot.org/Payloads for a list of supported payloads.
coreboot supports a wide range of chipsets, devices, and mainboards.
For details please consult:
ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).Optional:
make menuconfig and make nconfig)Please consult https://www.coreboot.org/Build_HOWTO for details.
If you want to test coreboot without any risks before you really decide to use it on your hardware, you can use the QEMU system emulator to run coreboot virtually in QEMU.
Please see https://www.coreboot.org/QEMU for details.
Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website:
You can contact us directly on the coreboot mailing list:
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coreboot is licensed under the terms of the GNU General Public License (GPL). Some files are licensed under the "GPL (version 2, or any later version)", and some files are licensed under the "GPL, version 2". For some parts, which were derived from other projects, other (GPL-compatible) licenses may apply. Please check the individual source files for details.
This makes the resulting coreboot images licensed under the GPL, version 2.