| # SPDX-License-Identifier: GPL-2.0-only | |
| # | |
| # fbdev core configuration | |
| # | |
| config FB_CORE | |
| select VIDEO | |
| tristate | |
| config FB_NOTIFY | |
| bool | |
| config FB_DEVICE | |
| bool "Provide legacy /dev/fb* device" | |
| depends on FB_CORE | |
| default FB | |
| help | |
| Say Y here if you want the legacy /dev/fb* device file and | |
| interfaces within sysfs and procfs. It is only required if you | |
| have userspace programs that depend on fbdev for graphics output. | |
| This does not affect the framebuffer console. If unsure, say N. | |
| config FB_DDC | |
| tristate | |
| depends on FB | |
| select I2C_ALGOBIT | |
| select I2C | |
| config FB_CFB_FILLRECT | |
| tristate | |
| depends on FB_CORE | |
| help | |
| Include the cfb_fillrect function for generic software rectangle | |
| filling. This is used by drivers that don't provide their own | |
| (accelerated) version. | |
| config FB_CFB_COPYAREA | |
| tristate | |
| depends on FB_CORE | |
| help | |
| Include the cfb_copyarea function for generic software area copying. | |
| This is used by drivers that don't provide their own (accelerated) | |
| version. | |
| config FB_CFB_IMAGEBLIT | |
| tristate | |
| depends on FB_CORE | |
| help | |
| Include the cfb_imageblit function for generic software image | |
| blitting. This is used by drivers that don't provide their own | |
| (accelerated) version. | |
| config FB_CFB_REV_PIXELS_IN_BYTE | |
| bool | |
| depends on FB_CORE | |
| help | |
| Allow I/O memory frame-buffer functions to work on displays with 1, 2 | |
| and 4 bits per pixel depths which has opposite order of pixels in | |
| byte order to bytes in long order. | |
| config FB_SYS_FILLRECT | |
| tristate | |
| depends on FB_CORE | |
| help | |
| Include the sys_fillrect function for generic software rectangle | |
| filling. This is used by drivers that don't provide their own | |
| (accelerated) version and the framebuffer is in system RAM. | |
| config FB_SYS_COPYAREA | |
| tristate | |
| depends on FB_CORE | |
| help | |
| Include the sys_copyarea function for generic software area copying. | |
| This is used by drivers that don't provide their own (accelerated) | |
| version and the framebuffer is in system RAM. | |
| config FB_SYS_IMAGEBLIT | |
| tristate | |
| depends on FB_CORE | |
| help | |
| Include the sys_imageblit function for generic software image | |
| blitting. This is used by drivers that don't provide their own | |
| (accelerated) version and the framebuffer is in system RAM. | |
| config FB_SYS_REV_PIXELS_IN_BYTE | |
| bool | |
| depends on FB_CORE | |
| help | |
| Allow virtual memory frame-buffer functions to work on displays with 1, 2 | |
| and 4 bits per pixel depths which has opposite order of pixels in | |
| byte order to bytes in long order. | |
| config FB_PROVIDE_GET_FB_UNMAPPED_AREA | |
| bool | |
| depends on FB | |
| help | |
| Allow generic frame-buffer to provide get_fb_unmapped_area | |
| function to provide shareable character device support on nommu. | |
| menuconfig FB_FOREIGN_ENDIAN | |
| bool "Framebuffer foreign endianness support" | |
| depends on FB | |
| help | |
| This menu will let you enable support for the framebuffers with | |
| non-native endianness (e.g. Little-Endian framebuffer on a | |
| Big-Endian machine). Most probably you don't have such hardware, | |
| so it's safe to say "n" here. | |
| choice | |
| prompt "Choice endianness support" | |
| depends on FB_FOREIGN_ENDIAN | |
| config FB_BOTH_ENDIAN | |
| bool "Support for Big- and Little-Endian framebuffers" | |
| config FB_BIG_ENDIAN | |
| bool "Support for Big-Endian framebuffers only" | |
| config FB_LITTLE_ENDIAN | |
| bool "Support for Little-Endian framebuffers only" | |
| endchoice | |
| config FB_SYSMEM_FOPS | |
| tristate | |
| depends on FB_CORE | |
| config FB_DEFERRED_IO | |
| bool | |
| depends on FB_CORE | |
| config FB_DMAMEM_HELPERS | |
| bool | |
| depends on FB_CORE | |
| select FB_SYS_COPYAREA | |
| select FB_SYS_FILLRECT | |
| select FB_SYS_IMAGEBLIT | |
| select FB_SYSMEM_FOPS | |
| config FB_DMAMEM_HELPERS_DEFERRED | |
| bool | |
| depends on FB_CORE | |
| select FB_DEFERRED_IO | |
| select FB_DMAMEM_HELPERS | |
| config FB_IOMEM_FOPS | |
| tristate | |
| depends on FB_CORE | |
| config FB_IOMEM_HELPERS | |
| bool | |
| depends on FB_CORE | |
| select FB_CFB_COPYAREA | |
| select FB_CFB_FILLRECT | |
| select FB_CFB_IMAGEBLIT | |
| select FB_IOMEM_FOPS | |
| config FB_IOMEM_HELPERS_DEFERRED | |
| bool | |
| depends on FB_CORE | |
| select FB_DEFERRED_IO | |
| select FB_IOMEM_HELPERS | |
| config FB_SYSMEM_HELPERS | |
| bool | |
| depends on FB_CORE | |
| select FB_SYS_COPYAREA | |
| select FB_SYS_FILLRECT | |
| select FB_SYS_IMAGEBLIT | |
| select FB_SYSMEM_FOPS | |
| config FB_SYSMEM_HELPERS_DEFERRED | |
| bool | |
| depends on FB_CORE | |
| select FB_DEFERRED_IO | |
| select FB_SYSMEM_HELPERS | |
| config FB_BACKLIGHT | |
| bool | |
| depends on FB | |
| config FB_MODE_HELPERS | |
| bool | |
| depends on FB | |
| help | |
| This enables functions for handling video modes using the | |
| Generalized Timing Formula and the EDID parser. A few drivers rely | |
| on this feature such as the radeonfb, rivafb, and the i810fb. If | |
| your driver does not take advantage of this feature, choosing Y will | |
| just increase the kernel size by about 5K. | |
| config FB_TILEBLITTING | |
| bool "Enable Tile Blitting Support" | |
| depends on FB | |
| help | |
| This enables tile blitting. Tile blitting is a drawing technique | |
| where the screen is divided into rectangular sections (tiles), whereas | |
| the standard blitting divides the screen into pixels. Because the | |
| default drawing element is a tile, drawing functions will be passed | |
| parameters in terms of number of tiles instead of number of pixels. | |
| For example, to draw a single character, instead of using bitmaps, | |
| an index to an array of bitmaps will be used. To clear or move a | |
| rectangular section of a screen, the rectangle will be described in | |
| terms of number of tiles in the x- and y-axis. | |
| This is particularly important to one driver, matroxfb. If | |
| unsure, say N. |