Looks like I messed up the email series, Resending. Sorry for the trouble > On 8 Aug 2024, at 5:23 PM, Aditya Garg <gargaditya08@xxxxxxxx> wrote: > > Hi Maintainers > > The Touch Bars found on x86 Macs support two USB configurations: one > where the device presents itself as a HID keyboard and can display > predefined sets of keys, and one where the operating system has full > control over what is displayed. > > This patch series adds support for both the configurations. > > The hid-appletb-bl driver adds support for the backlight of the Touch Bar. > This enables the user to control the brightness of the Touch Bar from > userspace. The Touch Bar supports 3 modes here: Max brightness, Dim and Off. > So, daemons, used to manage Touch Bar can easily manage these modes by writing > to /sys/class/backlight/appletb_backlight/brightness. It is needed by both the > configurations of the Touch Bar. > > The hid-appletb-kbd adds support for the first (predefined keys) configuration. > There are 4 modes here: Esc key only, Fn mode, Media keys and No keys. > Mode can be changed by writing to /sys/bus/hid/drivers/hid-appletb-kbd/<dev>/mode > This configuration is what Windows uses with the official Apple Bootcamp drivers. > > Rest patches support the second configuration, where the OS has full control > on what's displayed on the Touch Bar. It is achieved by the patching the > hid-multitouch driver to add support for touch feedback from the Touch Bar > and the appletbdrm driver, that displays what we want to on the Touch Bar. > This configuration is what macOS uses. > > The appletbdrm driver is based on the similar driver made for Windows by > imbushuo [1]. > > Currently, a daemon named tiny-dfr [2] is being used to display function keys > and media controls using the second configuration for both Apple Silicon and > T2 Macs. > > A daemon for the first configuration is being developed, but that's a userspace > thing. > > [1]: https://github.com/imbushuo/DFRDisplayKm > [2]: https://github.com/WhatAmISupposedToPutHere/tiny-dfr > > v2: > 1. Cleaned up some code in the hid-appletb-kbd driver. > 2. Fixed wrong subject in drm/format-helper patch. > 3. Fixed Co-developed-by wrongly added to hid-multitouch patch. > > Kerem Karabay (9): > HID: hid-appletb-bl: add driver for the backlight of Apple Touch Bars > HID: hid-appletb-kbd: add driver for the keyboard mode of Apple Touch > Bars > HID: multitouch: support getting the contact ID from > HID_DG_TRANSDUCER_INDEX fields > HID: multitouch: support getting the tip state from HID_DG_TOUCH > fields > HID: multitouch: take cls->maxcontacts into account for devices > without a HID_DG_CONTACTMAX field too > HID: multitouch: allow specifying if a device is direct in a class > HID: multitouch: add device ID for Apple Touch Bars > drm/format-helper: Add conversion from XRGB8888 to BGR888 > drm/tiny: add driver for Apple Touch Bars in x86 Macs > > .../ABI/testing/sysfs-driver-hid-appletb-kbd | 13 + > MAINTAINERS | 12 + > drivers/gpu/drm/drm_format_helper.c | 54 ++ > .../gpu/drm/tests/drm_format_helper_test.c | 81 +++ > drivers/gpu/drm/tiny/Kconfig | 12 + > drivers/gpu/drm/tiny/Makefile | 1 + > drivers/gpu/drm/tiny/appletbdrm.c | 624 ++++++++++++++++++ > drivers/hid/Kconfig | 22 + > drivers/hid/Makefile | 2 + > drivers/hid/hid-appletb-bl.c | 206 ++++++ > drivers/hid/hid-appletb-kbd.c | 303 +++++++++ > drivers/hid/hid-multitouch.c | 60 +- > drivers/hid/hid-quirks.c | 8 +- > include/drm/drm_format_helper.h | 3 + > 14 files changed, 1385 insertions(+), 16 deletions(-) > create mode 100644 Documentation/ABI/testing/sysfs-driver-hid-appletb-kbd > create mode 100644 drivers/gpu/drm/tiny/appletbdrm.c > create mode 100644 drivers/hid/hid-appletb-bl.c > create mode 100644 drivers/hid/hid-appletb-kbd.c > > -- > 2.39.3 (Apple Git-146) >
