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linux/drivers/gpu/drm/tiny/Kconfig
Kerem Karabay 0670c2f56e drm/tiny: add driver for Apple Touch Bars in x86 Macs 
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 commit adds support for the display functionality of the second
configuration. Functionality for the first configuration has been
merged in the HID tree.

Note that this driver has only been tested on T2 Macs, and only includes
the USB device ID for these devices. Testing on T1 Macs would be
appreciated.

Credit goes to Ben (Bingxing) Wang on GitHub for reverse engineering
most of the protocol.

Also, as requested by Andy, I would like to clarify the use of __packed
structs in this driver:

- All the packed structs are aligned except for appletbdrm_msg_information.
- We have to pack appletbdrm_msg_information since it is requirement of
  the protocol.
- We compared binaries compiled by keeping the rest structs __packed and
  not __packed using bloat-o-meter, and __packed was not affecting code
  generation.
- To maintain consistency, rest structs have been kept __packed.

I would also like to point out that since the driver was reverse-engineered
the actual data types of the protocol might be different, including, but
not limited to, endianness.

Link: https://github.com/imbushuo/DFRDisplayKm
Signed-off-by: Kerem Karabay <kekrby@gmail.com>
Co-developed-by: Atharva Tiwari <evepolonium@gmail.com>
Signed-off-by: Atharva Tiwari <evepolonium@gmail.com>
Co-developed-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Aun-Ali Zaidi <admin@kodeit.net>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/FCAC702C-F84A-47F9-8C78-BBBB34D08500@live.com
2025-03-03 16:13:33 +01:00

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# SPDX-License-Identifier: GPL-2.0-only
config DRM_APPLETBDRM
tristate "DRM support for Apple Touch Bars"
depends on DRM && USB && MMU
select DRM_GEM_SHMEM_HELPER
select DRM_KMS_HELPER
help
Say Y here if you want support for the display of Touch Bars on x86
MacBook Pros.
To compile this driver as a module, choose M here: the
module will be called appletbdrm.
config DRM_ARCPGU
tristate "ARC PGU"
depends on DRM && OF
select DRM_CLIENT_SELECTION
select DRM_GEM_DMA_HELPER
select DRM_KMS_HELPER
help
Choose this option if you have an ARC PGU controller.
If M is selected the module will be called arcpgu.
config DRM_BOCHS
tristate "DRM Support for bochs dispi vga interface (qemu stdvga)"
depends on DRM && PCI && MMU
select DRM_CLIENT_SELECTION
select DRM_GEM_SHMEM_HELPER
select DRM_KMS_HELPER
help
This is a KMS driver for qemu's stdvga output. Choose this option
for qemu.
If M is selected the module will be called bochs.
config DRM_CIRRUS_QEMU
tristate "Cirrus driver for QEMU emulated device"
depends on DRM && PCI && MMU
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_SHMEM_HELPER
help
This is a KMS driver for emulated cirrus device in qemu.
It is *NOT* intended for real cirrus devices. This requires
the modesetting userspace X.org driver.
Cirrus is obsolete, the hardware was designed in the 90ies
and can't keep up with todays needs. More background:
https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/
Better alternatives are:
- stdvga (DRM_BOCHS, qemu -vga std, default in qemu 2.2+)
- qxl (DRM_QXL, qemu -vga qxl, works best with spice)
- virtio (DRM_VIRTIO_GPU), qemu -vga virtio)
config DRM_GM12U320
tristate "GM12U320 driver for USB projectors"
depends on DRM && USB && MMU
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_SHMEM_HELPER
help
This is a KMS driver for projectors which use the GM12U320 chipset
for video transfer over USB2/3, such as the Acer C120 mini projector.
config DRM_OFDRM
tristate "Open Firmware display driver"
depends on DRM && MMU && OF && (PPC || COMPILE_TEST)
select APERTURE_HELPERS
select DRM_CLIENT_SELECTION
select DRM_GEM_SHMEM_HELPER
select DRM_KMS_HELPER
help
DRM driver for Open Firmware framebuffers.
This driver assumes that the display hardware has been initialized
by the Open Firmware before the kernel boots. Scanout buffer, size,
and display format must be provided via device tree.
config DRM_PANEL_MIPI_DBI
tristate "DRM support for MIPI DBI compatible panels"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_DMA_HELPER
select DRM_MIPI_DBI
select BACKLIGHT_CLASS_DEVICE
select VIDEOMODE_HELPERS
help
Say Y here if you want to enable support for MIPI DBI compatible
panels. The controller command setup can be provided using a
firmware file. For more information see
https://github.com/notro/panel-mipi-dbi/wiki.
To compile this driver as a module, choose M here.
config DRM_SIMPLEDRM
tristate "Simple framebuffer driver"
depends on DRM && MMU
select APERTURE_HELPERS
select DRM_CLIENT_SELECTION
select DRM_GEM_SHMEM_HELPER
select DRM_KMS_HELPER
help
DRM driver for simple platform-provided framebuffers.
This driver assumes that the display hardware has been initialized
by the firmware or bootloader before the kernel boots. Scanout
buffer, size, and display format must be provided via device tree,
UEFI, VESA, etc.
On x86 BIOS or UEFI systems, you should also select SYSFB_SIMPLEFB
to use UEFI and VESA framebuffers.
config TINYDRM_HX8357D
tristate "DRM support for HX8357D display panels"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_DMA_HELPER
select DRM_MIPI_DBI
select BACKLIGHT_CLASS_DEVICE
help
DRM driver for the following HX8357D panels:
* YX350HV15-T 3.5" 340x350 TFT (Adafruit 3.5")
If M is selected the module will be called hx8357d.
config TINYDRM_ILI9163
tristate "DRM support for ILI9163 display panels"
depends on DRM && SPI
select BACKLIGHT_CLASS_DEVICE
select DRM_CLIENT_SELECTION
select DRM_GEM_DMA_HELPER
select DRM_KMS_HELPER
select DRM_MIPI_DBI
help
DRM driver for the following Ilitek ILI9163 panels:
* NHD-1.8-128160EF 128x160 TFT
If M is selected the module will be called ili9163.
config TINYDRM_ILI9225
tristate "DRM support for ILI9225 display panels"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_DMA_HELPER
select DRM_MIPI_DBI
help
DRM driver for the following Ilitek ILI9225 panels:
* No-name 2.2" color screen module
If M is selected the module will be called ili9225.
config TINYDRM_ILI9341
tristate "DRM support for ILI9341 display panels"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_DMA_HELPER
select DRM_MIPI_DBI
select BACKLIGHT_CLASS_DEVICE
help
DRM driver for the following Ilitek ILI9341 panels:
* YX240QV29-T 2.4" 240x320 TFT (Adafruit 2.4")
If M is selected the module will be called ili9341.
config TINYDRM_ILI9486
tristate "DRM support for ILI9486 display panels"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_DMA_HELPER
select DRM_MIPI_DBI
select BACKLIGHT_CLASS_DEVICE
help
DRM driver for the following Ilitek ILI9486 panels:
* PISCREEN 3.5" 320x480 TFT (Ozzmaker 3.5")
* RPILCD 3.5" 320x480 TFT (Waveshare 3.5")
If M is selected the module will be called ili9486.
config TINYDRM_MI0283QT
tristate "DRM support for MI0283QT"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_DMA_HELPER
select DRM_MIPI_DBI
select BACKLIGHT_CLASS_DEVICE
help
DRM driver for the Multi-Inno MI0283QT display panel
If M is selected the module will be called mi0283qt.
config TINYDRM_REPAPER
tristate "DRM support for Pervasive Displays RePaper panels (V231)"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_DMA_HELPER
help
DRM driver for the following Pervasive Displays panels:
1.44" TFT EPD Panel (E1144CS021)
1.90" TFT EPD Panel (E1190CS021)
2.00" TFT EPD Panel (E2200CS021)
2.71" TFT EPD Panel (E2271CS021)
If M is selected the module will be called repaper.
config TINYDRM_SHARP_MEMORY
tristate "DRM support for Sharp Memory LCD panels"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_GEM_DMA_HELPER
select DRM_KMS_HELPER
help
DRM Driver for the following Sharp Memory Panels:
* 1.00" Sharp Memory LCD (LS010B7DH04)
* 1.10" Sharp Memory LCD (LS011B7DH03)
* 1.20" Sharp Memory LCD (LS012B7DD01)
* 1.28" Sharp Memory LCD (LS013B7DH03)
* 1.26" Sharp Memory LCD (LS013B7DH05)
* 1.80" Sharp Memory LCD (LS018B7DH02)
* 2.70" Sharp Memory LCD (LS027B7DH01)
* 2.70" Sharp Memory LCD (LS027B7DH01A)
* 3.20" Sharp Memory LCD (LS032B7DD02)
* 4.40" Sharp Memory LCD (LS044Q7DH01)
If M is selected the module will be called sharp_memory.
config TINYDRM_ST7586
tristate "DRM support for Sitronix ST7586 display panels"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_DMA_HELPER
select DRM_MIPI_DBI
help
DRM driver for the following Sitronix ST7586 panels:
* LEGO MINDSTORMS EV3
If M is selected the module will be called st7586.
config TINYDRM_ST7735R
tristate "DRM support for Sitronix ST7715R/ST7735R display panels"
depends on DRM && SPI
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_DMA_HELPER
select DRM_MIPI_DBI
select BACKLIGHT_CLASS_DEVICE
help
DRM driver for Sitronix ST7715R/ST7735R with one of the following
LCDs:
* Jianda JD-T18003-T01 1.8" 128x160 TFT
* Okaya RH128128T 1.44" 128x128 TFT
If M is selected the module will be called st7735r.
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