kconfig

Linux环境下视频显示卡设备的驱动程序源代码

#
# Video configuration
#

menu "Graphics support"
	depends on HAS_IOMEM

source "drivers/char/agp/Kconfig"

source "drivers/gpu/drm/Kconfig"

config VGASTATE
       tristate
       default n

config VIDEO_OUTPUT_CONTROL
	tristate "Lowlevel video output switch controls"
	help
	  This framework adds support for low-level control of the video 
	  output switch.

menuconfig FB
	tristate "Support for frame buffer devices"
	---help---
	  The frame buffer device provides an abstraction for the graphics
	  hardware. It represents the frame buffer of some video hardware and
	  allows application software to access the graphics hardware through
	  a well-defined interface, so the software doesn't need to know
	  anything about the low-level (hardware register) stuff.

	  Frame buffer devices work identically across the different
	  architectures supported by Linux and make the implementation of
	  application programs easier and more portable; at this point, an X
	  server exists which uses the frame buffer device exclusively.
	  On several non-X86 architectures, the frame buffer device is the
	  only way to use the graphics hardware.

	  The device is accessed through special device nodes, usually located
	  in the /dev directory, i.e. /dev/fb*.

	  You need an utility program called fbset to make full use of frame
	  buffer devices. Please read <file:Documentation/fb/framebuffer.txt>
	  and the Framebuffer-HOWTO at
	  <http://www.munted.org.uk/programming/Framebuffer-HOWTO-1.2.html> for more
	  information.

	  Say Y here and to the driver for your graphics board below if you
	  are compiling a kernel for a non-x86 architecture.

	  If you are compiling for the x86 architecture, you can say Y if you
	  want to play with it, but it is not essential. Please note that
	  running graphical applications that directly touch the hardware
	  (e.g. an accelerated X server) and that are not frame buffer
	  device-aware may cause unexpected results. If unsure, say N.

config FIRMWARE_EDID
       bool "Enable firmware EDID"
       depends on FB
       default n
       ---help---
         This enables access to the EDID transferred from the firmware.
	 On the i386, this is from the Video BIOS. Enable this if DDC/I2C
	 transfers do not work for your driver and if you are using
	 nvidiafb, i810fb or savagefb.

	 In general, choosing Y for this option is safe.  If you
	 experience extremely long delays while booting before you get
	 something on your display, try setting this to N.  Matrox cards in
	 combination with certain motherboards and monitors are known to
	 suffer from this problem.

config FB_DDC
       tristate
       depends on FB
       select I2C_ALGOBIT
       select I2C
       default n

config FB_BOOT_VESA_SUPPORT
	bool
	depends on FB
	default n
	---help---
	  If true, at least one selected framebuffer driver can take advantage
	  of VESA video modes set at an early boot stage via the vga= parameter.

config FB_CFB_FILLRECT
	tristate
	depends on FB
	default n
	---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
	default n
	---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
	default n
	---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
	default n
	---help---
	  Allow generic 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
	default n
	---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
	default n
	---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
	default n
	---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.

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_SYS_FOPS
       tristate
       depends on FB
       default n

config FB_DEFERRED_IO
	bool
	depends on FB

config FB_HECUBA
	tristate
	depends on FB
	depends on FB_DEFERRED_IO

config FB_SVGALIB
	tristate
	depends on FB
	default n
	---help---
	  Common utility functions useful to fbdev drivers of VGA-based
	  cards.

config FB_MACMODES
       tristate
       depends on FB
       default n

config FB_BACKLIGHT
	bool
	depends on FB
	select BACKLIGHT_LCD_SUPPORT
	select BACKLIGHT_CLASS_DEVICE
	default n

config FB_MODE_HELPERS
        bool "Enable Video Mode Handling Helpers"
        depends on FB
	default n
	---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
       default n
       ---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.

comment "Frame buffer hardware drivers"
	depends on FB

config FB_CIRRUS
	tristate "Cirrus Logic support"
	depends on FB && (ZORRO || PCI)
	select FB_CFB_FILLRECT
	select FB_CFB_COPYAREA
	select FB_CFB_IMAGEBLIT
	---help---
	  This enables support for Cirrus Logic GD542x/543x based boards on
	  Amiga: SD64, Piccolo, Picasso II/II+, Picasso IV, or EGS Spectrum.

	  If you have a PCI-based system, this enables support for these
	  chips: GD-543x, GD-544x, GD-5480.

	  Please read the file <file:Documentation/fb/cirrusfb.txt>.

	  Say N unless you have such a graphics board or plan to get one
	  before you next recompile the kernel.

config FB_PM2
	tristate "Permedia2 support"
	depends on FB && ((AMIGA && BROKEN) || PCI)
	select FB_CFB_FILLRECT
	select FB_CFB_COPYAREA
	select FB_CFB_IMAGEBLIT
	help
	  This is the frame buffer device driver for cards based on
	  the 3D Labs Permedia, Permedia 2 and Permedia 2V chips.
	  The driver was tested on the following cards:
		Diamond FireGL 1000 PRO AGP
		ELSA Gloria Synergy PCI
		Appian Jeronimo PRO (both heads) PCI
		3DLabs Oxygen ACX aka EONtronics Picasso P2 PCI
		Techsource Raptor GFX-8P (aka Sun PGX-32) on SPARC
		ASK Graphic Blaster Exxtreme AGP

	  To compile this driver as a module, choose M here: the
	  module will be called pm2fb.

config FB_PM2_FIFO_DISCONNECT
	bool "enable FIFO disconnect feature"
	depends on FB_PM2 && PCI
	help
	  Support the Permedia2 FIFO disconnect feature.

config FB_ARMCLCD
	tristate "ARM PrimeCell PL110 support"
	depends on FB && ARM && ARM_AMBA
	select FB_CFB_FILLRECT
	select FB_CFB_COPYAREA
	select FB_CFB_IMAGEBLIT
	help
	  This framebuffer device driver is for the ARM PrimeCell PL110
	  Colour LCD controller.  ARM PrimeCells provide the building
	  blocks for System on a Chip devices.

	  If you want to compile this as a module (=code which can be
	  inserted into and removed from the running kernel), say M
	  here and read <file:Documentation/kbuild/modules.txt>.  The module
	  will be called amba-clcd.

choice

	depends on FB_ARMCLCD && (ARCH_LH7A40X || ARCH_LH7952X)
	prompt "LCD Panel"
	default FB_ARMCLCD_SHARP_LQ035Q7DB02

config FB_ARMCLCD_SHARP_LQ035Q7DB02_HRTFT
	bool "LogicPD LCD 3.5\" QVGA w/HRTFT IC"
	help
	  This is an implementation of the Sharp LQ035Q7DB02, a 3.5"
	  color QVGA, HRTFT panel.  The LogicPD device includes
	  an integrated HRTFT controller IC.
	  The native resolution is 240x320.

config FB_ARMCLCD_SHARP_LQ057Q3DC02
	bool "LogicPD LCD 5.7\" QVGA"
	help
	  This is an implementation of the Sharp LQ057Q3DC02, a 5.7"
	  color QVGA, TFT panel.  The LogicPD device includes an
	  The native resolution is 320x240.

config FB_ARMCLCD_SHARP_LQ64D343
	bool "LogicPD LCD 6.4\" VGA"
	help
	  This is an implementation of the Sharp LQ64D343, a 6.4"
	  color VGA, TFT panel.  The LogicPD device includes an
	  The native resolution is 640x480.

config FB_ARMCLCD_SHARP_LQ10D368
	bool "LogicPD LCD 10.4\" VGA"
	help
	  This is an implementation of the Sharp LQ10D368, a 10.4"
	  color VGA, TFT panel.  The LogicPD device includes an
	  The native resolution is 640x480.


config FB_ARMCLCD_SHARP_LQ121S1DG41
	bool "LogicPD LCD 12.1\" SVGA"
	help
	  This is an implementation of the Sharp LQ121S1DG41, a 12.1"
	  color SVGA, TFT panel.  The LogicPD device includes an
	  The native resolution is 800x600.

	  This panel requires a clock rate may be an integer fraction
	  of the base LCDCLK frequency.  The driver will select the
	  highest frequency available that is lower than the maximum
	  allowed.  The panel may flicker if the clock rate is
	  slower than the recommended minimum.

config FB_ARMCLCD_AUO_A070VW01_WIDE
	bool "AU Optronics A070VW01 LCD 7.0\" WIDE"
	help
	  This is an implementation of the AU Optronics, a 7.0"
	  WIDE Color.  The native resolution is 234x480.

config FB_ARMCLCD_HITACHI
	bool "Hitachi Wide Screen 800x480"
	help
	  This is an implementation of the Hitachi 800x480.

endchoice


config FB_ACORN
	bool "Acorn VIDC support"
	depends on (FB = y) && ARM && ARCH_ACORN
	select FB_CFB_FILLRECT
	select FB_CFB_COPYAREA
	select FB_CFB_IMAGEBLIT
	help
	  This is the frame buffer device driver for the Acorn VIDC graphics
	  hardware found in Acorn RISC PCs and other ARM-based machines.  If
	  unsure, say N.

config FB_CLPS711X
	bool "CLPS711X LCD support"
	depends on (FB = y) && ARM && ARCH_CLPS711X
	select FB_CFB_FILLRECT
	select FB_CFB_COPYAREA
	select FB_CFB_IMAGEBLIT
	help
	  Say Y to enable the Framebuffer driver for the CLPS7111 and
	  EP7212 processors.

config FB_SA1100
	bool "SA-1100 LCD support"
	depends on (FB = y) && ARM && ARCH_SA1100
	select FB_CFB_FILLRECT
	select FB_CFB_COPYAREA
	select FB_CFB_IMAGEBLIT
	help
	  This is a framebuffer device for the SA-1100 LCD Controller.
	  See <http://www.linux-fbdev.org/> for information on framebuffer
	  devices.

	  If you plan to use the LCD display with your SA-1100 system, say
	  Y here.

config FB_IMX
	tristate "Motorola i.MX LCD support"
	depends on FB && ARM && ARCH_IMX
	select FB_CFB_FILLRECT
	select FB_CFB_COPYAREA
	select FB_CFB_IMAGEBLIT

config FB_CYBER2000
	tristate "CyberPro 2000/2010/5000 support"
	depends on FB && PCI && (BROKEN || !SPARC64)
	select FB_CFB_FILLRECT
	select FB_CFB_COPYAREA
	select FB_CFB_IMAGEBLIT
	help
	  This enables support for the Integraphics CyberPro 20x0 and 5000
	  VGA chips used in the Rebel.com Netwinder and other machines.
	  Say Y if you have a NetWinder or a graphics card containing this
	  device, otherwise say N.

config FB_APOLLO
	bool
	depends on (FB = y) && APOLLO
	default y