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Diffstat (limited to 'drivers/video/Kconfig')
| -rw-r--r-- | drivers/video/Kconfig | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 55f4fa42ab..e2e1f9c476 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -854,4 +854,89 @@ config IHS_VIDEO_OUT out On-screen Display (OSD) used on gdsys FPGAs to control dynamic textual overlays of the display outputs. +config SPLASH_SCREEN + bool "Show a splash-screen image" + help + If this option is set, the environment is checked for a variable + "splashimage". If found, the usual display of logo, copyright and + system information on the LCD is suppressed and the BMP image at the + address specified in "splashimage" is loaded instead. The console is + redirected to the "nulldev", too. This allows for a "silent" boot + where a splash screen is loaded very quickly after power-on. + + The splash_screen_prepare() function is a weak function defined in + common/splash.c. It is called as part of the splash screen display + sequence. It gives the board an opportunity to prepare the splash + image data before it is processed and sent to the frame buffer by + U-Boot. Define your own version to use this feature. + +config SPLASHIMAGE_GUARD + bool "Support unaligned BMP images" + depends on SPLASH_SCREEN + help + If this option is set, then U-Boot will prevent the environment + variable "splashimage" from being set to a problematic address + (see doc/README.displaying-bmps). + + This option is useful for targets where, due to alignment + restrictions, an improperly aligned BMP image will cause a data + abort. If you think you will not have problems with unaligned + accesses (for example because your toolchain prevents them) + there is no need to set this option. + +config SPLASH_SCREEN_ALIGN + bool "Allow positioning the splash image anywhere on the display" + depends on SPLASH_SCREEN || CMD_BMP + help + If this option is set the splash image can be freely positioned + on the screen. Environment variable "splashpos" specifies the + position as "x,y". If a positive number is given it is used as + number of pixel from left/top. If a negative number is given it + is used as number of pixel from right/bottom. You can also + specify 'm' for centering the image. + + Example: + setenv splashpos m,m + => image at center of screen + + setenv splashpos 30,20 + => image at x = 30 and y = 20 + + setenv splashpos -10,m + => vertically centered image + at x = dspWidth - bmpWidth - 9 + +config SPLASH_SOURCE + bool "Control the source of the splash image" + depends on SPLASH_SCREEN + help + Use the splash_source.c library. This library provides facilities to + declare board specific splash image locations, routines for loading + splash image from supported locations, and a way of controlling the + selected splash location using the "splashsource" environment + variable. + + This CONFIG works as follows: + + - If splashsource is set to a supported location name as defined by + board code, use that splash location. + - If splashsource is undefined, use the first splash location as + default. + - If splashsource is set to an unsupported value, do not load a splash + screen. + + A splash source location can describe either storage with raw data, a + storage formatted with a file system or a FIT image. In case of a + filesystem, the splash screen data is loaded as a file. The name of + the splash screen file can be controlled with the environment variable + "splashfile". + + To enable loading the splash image from a FIT image, CONFIG_FIT must + be enabled. The FIT image has to start at the 'offset' field address + in the selected splash location. The name of splash image within the + FIT shall be specified by the environment variable "splashfile". + + In case the environment variable "splashfile" is not defined the + default name 'splash.bmp' will be used. + endmenu |