| # | |
| # Video configuration | |
| # | |
| menu "Graphics support" | |
| config DM_VIDEO | |
| bool "Enable driver model support for LCD/video" | |
| depends on DM | |
| help | |
| This enables driver model for LCD and video devices. These support | |
| a bitmap display of various sizes and depths which can be drawn on | |
| to display a command-line console or splash screen. Enabling this | |
| option compiles in the video uclass and routes all LCD/video access | |
| through this. | |
| config BACKLIGHT_PWM | |
| bool "Generic PWM based Backlight Driver" | |
| depends on DM_VIDEO && DM_PWM | |
| default y | |
| help | |
| If you have a LCD backlight adjustable by PWM, say Y to enable | |
| this driver. | |
| This driver can be use with "simple-panel" and | |
| it understands the standard device tree | |
| (leds/backlight/pwm-backlight.txt) | |
| config BACKLIGHT_GPIO | |
| bool "Generic GPIO based Backlight Driver" | |
| depends on DM_VIDEO | |
| help | |
| If you have a LCD backlight adjustable by GPIO, say Y to enable | |
| this driver. | |
| This driver can be used with "simple-panel" and | |
| it understands the standard device tree | |
| (leds/backlight/gpio-backlight.txt) | |
| config VIDEO_BPP8 | |
| bool "Support 8-bit-per-pixel displays" | |
| depends on DM_VIDEO | |
| default y if DM_VIDEO | |
| help | |
| Support drawing text and bitmaps onto a 8-bit-per-pixel display. | |
| Enabling this will include code to support this display. Without | |
| this option, such displays will not be supported and console output | |
| will be empty. | |
| config VIDEO_BPP16 | |
| bool "Support 16-bit-per-pixel displays" | |
| depends on DM_VIDEO | |
| default y if DM_VIDEO | |
| help | |
| Support drawing text and bitmaps onto a 16-bit-per-pixel display. | |
| Enabling this will include code to support this display. Without | |
| this option, such displays will not be supported and console output | |
| will be empty. | |
| config VIDEO_BPP32 | |
| bool "Support 32-bit-per-pixel displays" | |
| depends on DM_VIDEO | |
| default y if DM_VIDEO | |
| help | |
| Support drawing text and bitmaps onto a 32-bit-per-pixel display. | |
| Enabling this will include code to support this display. Without | |
| this option, such displays will not be supported and console output | |
| will be empty. | |
| config VIDEO_ANSI | |
| bool "Support ANSI escape sequences in video console" | |
| depends on DM_VIDEO | |
| default y if DM_VIDEO | |
| help | |
| Enable ANSI escape sequence decoding for a more fully functional | |
| console. | |
| config CONSOLE_NORMAL | |
| bool "Support a simple text console" | |
| depends on DM_VIDEO | |
| default y if DM_VIDEO | |
| help | |
| Support drawing text on the frame buffer console so that it can be | |
| used as a console. Rotation is not supported by this driver (see | |
| CONFIG_CONSOLE_ROTATION for that). A built-in 8x16 font is used | |
| for the display. | |
| config CONSOLE_ROTATION | |
| bool "Support rotated displays" | |
| depends on DM_VIDEO | |
| help | |
| Sometimes, for example if the display is mounted in portrait | |
| mode or even if it's mounted landscape but rotated by 180degree, | |
| we need to rotate our content of the display relative to the | |
| framebuffer, so that user can read the messages which are | |
| printed out. Enable this option to include a text driver which can | |
| support this. The rotation is set by the 'rot' parameter in | |
| struct video_priv: 0=unrotated, 1=90 degrees clockwise, 2=180 | |
| degrees, 3=270 degrees. | |
| config CONSOLE_TRUETYPE | |
| bool "Support a console that uses TrueType fonts" | |
| depends on DM_VIDEO | |
| help | |
| TrueTrype fonts can provide outline-drawing capability rather than | |
| needing to provide a bitmap for each font and size that is needed. | |
| With this option you can adjust the text size and use a variety of | |
| fonts. Note that this is noticeably slower than with normal console. | |
| config CONSOLE_TRUETYPE_SIZE | |
| int "TrueType font size" | |
| depends on CONSOLE_TRUETYPE | |
| default 18 | |
| help | |
| This sets the font size for the console. The size is measured in | |
| pixels and is the nominal height of a character. Note that fonts | |
| are commonly measured in 'points', being 1/72 inch (about 3.52mm). | |
| However that measurement depends on the size of your display and | |
| there is no standard display density. At present there is not a | |
| method to select the display's physical size, which would allow | |
| U-Boot to calculate the correct font size. | |
| config SYS_WHITE_ON_BLACK | |
| bool "Display console as white on a black background" | |
| default y if ARCH_AT91 || ARCH_EXYNOS || ARCH_ROCKCHIP || TEGRA || X86 | |
| help | |
| Normally the display is black on a white background, Enable this | |
| option to invert this, i.e. white on a black background. This can be | |
| better in low-light situations or to reduce eye strain in some | |
| cases. | |
| config NO_FB_CLEAR | |
| bool "Skip framebuffer clear" | |
| help | |
| If firmware (whatever loads u-boot) has already put a splash image | |
| on screen, you might want to preserve it until whatever u-boot | |
| loads takes over the screen. This, for example, can be used to | |
| keep splash image on screen until grub graphical boot menu starts. | |
| source "drivers/video/fonts/Kconfig" | |
| config VIDCONSOLE_AS_LCD | |
| bool "Use 'vidconsole' when 'lcd' is seen in stdout" | |
| depends on DM_VIDEO | |
| help | |
| This is a work-around for boards which have 'lcd' in their stdout | |
| environment variable, but have moved to use driver model for video. | |
| In this case the console will no-longer work. While it is possible | |
| to update the environment, the breakage may be confusing for users. | |
| This option will be removed around the end of 2016. | |
| config VIDEO_COREBOOT | |
| bool "Enable coreboot framebuffer driver support" | |
| depends on X86 && SYS_COREBOOT | |
| help | |
| Turn on this option to enable a framebuffer driver when U-Boot is | |
| loaded by coreboot where the graphics device is configured by | |
| coreboot already. This can in principle be used with any platform | |
| that coreboot supports. | |
| config VIDEO_VESA | |
| bool "Enable VESA video driver support" | |
| default n | |
| help | |
| Turn on this option to enable a very simple driver which uses vesa | |
| to discover the video mode and then provides a frame buffer for use | |
| by U-Boot. This can in principle be used with any platform that | |
| supports PCI and video cards that support VESA BIOS Extension (VBE). | |
| config FRAMEBUFFER_SET_VESA_MODE | |
| bool "Set framebuffer graphics resolution" | |
| depends on VIDEO_VESA || VIDEO_BROADWELL_IGD | |
| help | |
| Set VESA/native framebuffer mode (needed for bootsplash and graphical | |
| framebuffer console) | |
| choice | |
| prompt "framebuffer graphics resolution" | |
| default FRAMEBUFFER_VESA_MODE_118 | |
| depends on FRAMEBUFFER_SET_VESA_MODE | |
| help | |
| This option sets the resolution used for the U-Boot framebuffer (and | |
| bootsplash screen). | |
| config FRAMEBUFFER_VESA_MODE_100 | |
| bool "640x400 256-color" | |
| config FRAMEBUFFER_VESA_MODE_101 | |
| bool "640x480 256-color" | |
| config FRAMEBUFFER_VESA_MODE_102 | |
| bool "800x600 16-color" | |
| config FRAMEBUFFER_VESA_MODE_103 | |
| bool "800x600 256-color" | |
| config FRAMEBUFFER_VESA_MODE_104 | |
| bool "1024x768 16-color" | |
| config FRAMEBUFFER_VESA_MODE_105 | |
| bool "1024x768 256-color" | |
| config FRAMEBUFFER_VESA_MODE_106 | |
| bool "1280x1024 16-color" | |
| config FRAMEBUFFER_VESA_MODE_107 | |
| bool "1280x1024 256-color" | |
| config FRAMEBUFFER_VESA_MODE_108 | |
| bool "80x60 text" | |
| config FRAMEBUFFER_VESA_MODE_109 | |
| bool "132x25 text" | |
| config FRAMEBUFFER_VESA_MODE_10A | |
| bool "132x43 text" | |
| config FRAMEBUFFER_VESA_MODE_10B | |
| bool "132x50 text" | |
| config FRAMEBUFFER_VESA_MODE_10C | |
| bool "132x60 text" | |
| config FRAMEBUFFER_VESA_MODE_10D | |
| bool "320x200 32k-color (1:5:5:5)" | |
| config FRAMEBUFFER_VESA_MODE_10E | |
| bool "320x200 64k-color (5:6:5)" | |
| config FRAMEBUFFER_VESA_MODE_10F | |
| bool "320x200 16.8M-color (8:8:8)" | |
| config FRAMEBUFFER_VESA_MODE_110 | |
| bool "640x480 32k-color (1:5:5:5)" | |
| config FRAMEBUFFER_VESA_MODE_111 | |
| bool "640x480 64k-color (5:6:5)" | |
| config FRAMEBUFFER_VESA_MODE_112 | |
| bool "640x480 16.8M-color (8:8:8)" | |
| config FRAMEBUFFER_VESA_MODE_113 | |
| bool "800x600 32k-color (1:5:5:5)" | |
| config FRAMEBUFFER_VESA_MODE_114 | |
| bool "800x600 64k-color (5:6:5)" | |
| config FRAMEBUFFER_VESA_MODE_115 | |
| bool "800x600 16.8M-color (8:8:8)" | |
| config FRAMEBUFFER_VESA_MODE_116 | |
| bool "1024x768 32k-color (1:5:5:5)" | |
| config FRAMEBUFFER_VESA_MODE_117 | |
| bool "1024x768 64k-color (5:6:5)" | |
| config FRAMEBUFFER_VESA_MODE_118 | |
| bool "1024x768 16.8M-color (8:8:8)" | |
| config FRAMEBUFFER_VESA_MODE_119 | |
| bool "1280x1024 32k-color (1:5:5:5)" | |
| config FRAMEBUFFER_VESA_MODE_11A | |
| bool "1280x1024 64k-color (5:6:5)" | |
| config FRAMEBUFFER_VESA_MODE_11B | |
| bool "1280x1024 16.8M-color (8:8:8)" | |
| config FRAMEBUFFER_VESA_MODE_USER | |
| bool "Manually select VESA mode" | |
| endchoice | |
| # Map the config names to an integer (KB). | |
| config FRAMEBUFFER_VESA_MODE | |
| prompt "VESA mode" if FRAMEBUFFER_VESA_MODE_USER | |
| hex | |
| default 0x100 if FRAMEBUFFER_VESA_MODE_100 | |
| default 0x101 if FRAMEBUFFER_VESA_MODE_101 | |
| default 0x102 if FRAMEBUFFER_VESA_MODE_102 | |
| default 0x103 if FRAMEBUFFER_VESA_MODE_103 | |
| default 0x104 if FRAMEBUFFER_VESA_MODE_104 | |
| default 0x105 if FRAMEBUFFER_VESA_MODE_105 | |
| default 0x106 if FRAMEBUFFER_VESA_MODE_106 | |
| default 0x107 if FRAMEBUFFER_VESA_MODE_107 | |
| default 0x108 if FRAMEBUFFER_VESA_MODE_108 | |
| default 0x109 if FRAMEBUFFER_VESA_MODE_109 | |
| default 0x10A if FRAMEBUFFER_VESA_MODE_10A | |
| default 0x10B if FRAMEBUFFER_VESA_MODE_10B | |
| default 0x10C if FRAMEBUFFER_VESA_MODE_10C | |
| default 0x10D if FRAMEBUFFER_VESA_MODE_10D | |
| default 0x10E if FRAMEBUFFER_VESA_MODE_10E | |
| default 0x10F if FRAMEBUFFER_VESA_MODE_10F | |
| default 0x110 if FRAMEBUFFER_VESA_MODE_110 | |
| default 0x111 if FRAMEBUFFER_VESA_MODE_111 | |
| default 0x112 if FRAMEBUFFER_VESA_MODE_112 | |
| default 0x113 if FRAMEBUFFER_VESA_MODE_113 | |
| default 0x114 if FRAMEBUFFER_VESA_MODE_114 | |
| default 0x115 if FRAMEBUFFER_VESA_MODE_115 | |
| default 0x116 if FRAMEBUFFER_VESA_MODE_116 | |
| default 0x117 if FRAMEBUFFER_VESA_MODE_117 | |
| default 0x118 if FRAMEBUFFER_VESA_MODE_118 | |
| default 0x119 if FRAMEBUFFER_VESA_MODE_119 | |
| default 0x11A if FRAMEBUFFER_VESA_MODE_11A | |
| default 0x11B if FRAMEBUFFER_VESA_MODE_11B | |
| default 0x117 if FRAMEBUFFER_VESA_MODE_USER | |
| config VIDEO_LCD_ANX9804 | |
| bool "ANX9804 bridge chip" | |
| default n | |
| ---help--- | |
| Support for the ANX9804 bridge chip, which can take pixel data coming | |
| from a parallel LCD interface and translate it on the fy into a DP | |
| interface for driving eDP TFT displays. It uses I2C for configuration. | |
| config VIDEO_LCD_SSD2828 | |
| bool "SSD2828 bridge chip" | |
| default n | |
| ---help--- | |
| Support for the SSD2828 bridge chip, which can take pixel data coming | |
| from a parallel LCD interface and translate it on the fly into MIPI DSI | |
| interface for driving a MIPI compatible LCD panel. It uses SPI for | |
| configuration. | |
| config VIDEO_LCD_SSD2828_TX_CLK | |
| int "SSD2828 TX_CLK frequency (in MHz)" | |
| depends on VIDEO_LCD_SSD2828 | |
| default 0 | |
| ---help--- | |
| The frequency of the crystal, which is clocking SSD2828. It may be | |
| anything in the 8MHz-30MHz range and the exact value should be | |
| retrieved from the board schematics. Or in the case of Allwinner | |
| hardware, it can be usually found as 'lcd_xtal_freq' variable in | |
| FEX files. It can be also set to 0 for selecting PCLK from the | |
| parallel LCD interface instead of TX_CLK as the PLL clock source. | |
| config VIDEO_LCD_SSD2828_RESET | |
| string "RESET pin of SSD2828" | |
| depends on VIDEO_LCD_SSD2828 | |
| default "" | |
| ---help--- | |
| The reset pin of SSD2828 chip. This takes a string in the format | |
| understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. | |
| config VIDEO_LCD_HITACHI_TX18D42VM | |
| bool "Hitachi tx18d42vm LVDS LCD panel support" | |
| depends on VIDEO | |
| default n | |
| ---help--- | |
| Support for Hitachi tx18d42vm LVDS LCD panels, these panels have a | |
| lcd controller which needs to be initialized over SPI, once that is | |
| done they work like a regular LVDS panel. | |
| config VIDEO_LCD_SPI_CS | |
| string "SPI CS pin for LCD related config job" | |
| depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM | |
| default "" | |
| ---help--- | |
| This is one of the SPI communication pins, involved in setting up a | |
| working LCD configuration. The exact role of SPI may differ for | |
| different hardware setups. The option takes a string in the format | |
| understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. | |
| config VIDEO_LCD_SPI_SCLK | |
| string "SPI SCLK pin for LCD related config job" | |
| depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM | |
| default "" | |
| ---help--- | |
| This is one of the SPI communication pins, involved in setting up a | |
| working LCD configuration. The exact role of SPI may differ for | |
| different hardware setups. The option takes a string in the format | |
| understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. | |
| config VIDEO_LCD_SPI_MOSI | |
| string "SPI MOSI pin for LCD related config job" | |
| depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM | |
| default "" | |
| ---help--- | |
| This is one of the SPI communication pins, involved in setting up a | |
| working LCD configuration. The exact role of SPI may differ for | |
| different hardware setups. The option takes a string in the format | |
| understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. | |
| config VIDEO_LCD_SPI_MISO | |
| string "SPI MISO pin for LCD related config job (optional)" | |
| depends on VIDEO_LCD_SSD2828 | |
| default "" | |
| ---help--- | |
| This is one of the SPI communication pins, involved in setting up a | |
| working LCD configuration. The exact role of SPI may differ for | |
| different hardware setups. If wired up, this pin may provide additional | |
| useful functionality. Such as bi-directional communication with the | |
| hardware and LCD panel id retrieval (if the panel can report it). The | |
| option takes a string in the format understood by 'name_to_gpio' | |
| function, e.g. PH1 for pin 1 of port H. | |
| config VIDEO_MVEBU | |
| bool "Armada XP LCD controller" | |
| default n | |
| ---help--- | |
| Support for the LCD controller integrated in the Marvell | |
| Armada XP SoC. | |
| config I2C_EDID | |
| bool "Enable EDID library" | |
| depends on DM_I2C | |
| default n | |
| help | |
| This enables library for accessing EDID data from an LCD panel. | |
| config DISPLAY | |
| bool "Enable Display support" | |
| depends on DM | |
| default n | |
| select I2C_EDID | |
| help | |
| This supports drivers that provide a display, such as eDP (Embedded | |
| DisplayPort) and HDMI (High Definition Multimedia Interface). | |
| The devices provide a simple interface to start up the display, | |
| read display information and enable it. | |
| config ATMEL_HLCD | |
| bool "Enable ATMEL video support using HLCDC" | |
| depends on DM_VIDEO | |
| help | |
| HLCDC supports video output to an attached LCD panel. | |
| config VIDEO_BROADWELL_IGD | |
| bool "Enable Intel Broadwell integrated graphics device" | |
| depends on X86 | |
| help | |
| This enables support for integrated graphics on Intel broadwell | |
| devices. Initialisation is mostly performed by a VGA boot ROM, with | |
| some setup handled by U-Boot itself. The graphics adaptor works as | |
| a VESA device and supports LCD panels, eDP and LVDS outputs. | |
| Configuration of most aspects of device operation is performed using | |
| a special tool which configures the VGA ROM, but the graphics | |
| resolution can be selected in U-Boot. | |
| config VIDEO_IVYBRIDGE_IGD | |
| bool "Enable Intel Ivybridge integration graphics support" | |
| depends on X86 | |
| help | |
| This enables support for integrated graphics on Intel ivybridge | |
| devices. Initialisation is mostly performed by a VGA boot ROM, with | |
| some setup handled by U-Boot itself. The graphics adaptor works as | |
| a VESA device and supports LCD panels, eDP and LVDS outputs. | |
| Configuration of most aspects of device operation is performed using | |
| a special tool which configures the VGA ROM, but the graphics | |
| resolution can be selected in U-Boot. | |
| config VIDEO_FSL_DCU_FB | |
| bool "Enable Freescale Display Control Unit" | |
| depends on VIDEO | |
| help | |
| This enables support for Freescale Display Control Unit (DCU4) | |
| module found on Freescale Vybrid and QorIQ family of SoCs. | |
| config VIDEO_FSL_DCU_MAX_FB_SIZE_MB | |
| int "Freescale DCU framebuffer size" | |
| depends on VIDEO_FSL_DCU_FB | |
| default 4194304 | |
| help | |
| Set maximum framebuffer size to be used for Freescale Display | |
| Controller Unit (DCU4). | |
| source "drivers/video/rockchip/Kconfig" | |
| config VIDEO_SANDBOX_SDL | |
| bool "Enable sandbox video console using SDL" | |
| depends on SANDBOX | |
| help | |
| When using sandbox you can enable an emulated LCD display which | |
| appears as an SDL (Simple DirectMedia Layer) window. This is a | |
| console device and can display stdout output. Within U-Boot is is | |
| a normal bitmap display and can display images as well as text. | |
| source "drivers/video/stm32/Kconfig" | |
| config VIDEO_TEGRA20 | |
| bool "Enable LCD support on Tegra20" | |
| depends on OF_CONTROL | |
| help | |
| Tegra20 supports video output to an attached LCD panel as well as | |
| other options such as HDMI. Only the LCD is supported in U-Boot. | |
| This option enables this support which can be used on devices which | |
| have an LCD display connected. | |
| config VIDEO_TEGRA124 | |
| bool "Enable video support on Tegra124" | |
| depends on DM_VIDEO | |
| help | |
| Tegra124 supports many video output options including eDP and | |
| HDMI. At present only eDP is supported by U-Boot. This option | |
| enables this support which can be used on devices which | |
| have an eDP display connected. | |
| source "drivers/video/bridge/Kconfig" | |
| config VIDEO | |
| bool "Enable legacy video support" | |
| depends on !DM_VIDEO | |
| help | |
| Define this for video support, without using driver model. Some | |
| drivers use this because they are not yet converted to driver | |
| model. Video drivers typically provide a colour text console and | |
| cursor. | |
| config VIDEO_IPUV3 | |
| bool "i.MX IPUv3 Core video support" | |
| depends on VIDEO && MX6 | |
| help | |
| This enables framebuffer driver for i.MX processors working | |
| on the IPUv3(Image Processing Unit) internal graphic processor. | |
| config CFB_CONSOLE | |
| bool "Enable colour frame buffer console" | |
| depends on VIDEO | |
| default y if VIDEO | |
| help | |
| Enables the colour frame buffer driver. This supports colour | |
| output on a bitmap display from an in-memory frame buffer. | |
| Several colour devices are supported along with various options to | |
| adjust the supported features. The driver is implemented in | |
| cfb_console.c | |
| The following defines are needed (cf. smiLynxEM, i8042) | |
| VIDEO_FB_LITTLE_ENDIAN graphic memory organisation | |
| (default big endian) | |
| VIDEO_HW_RECTFILL graphic chip supports | |
| rectangle fill (cf. smiLynxEM) | |
| VIDEO_HW_BITBLT graphic chip supports | |
| bit-blit (cf. smiLynxEM) | |
| VIDEO_VISIBLE_COLS visible pixel columns (cols=pitch) | |
| VIDEO_VISIBLE_ROWS visible pixel rows | |
| VIDEO_PIXEL_SIZE bytes per pixel | |
| VIDEO_DATA_FORMAT graphic data format | |
| (0-5, cf. cfb_console.c) | |
| VIDEO_FB_ADRS framebuffer address | |
| VIDEO_KBD_INIT_FCT keyboard int fct (i.e. rx51_kp_init()) | |
| VIDEO_TSTC_FCT test char fct (i.e. rx51_kp_tstc) | |
| VIDEO_GETC_FCT get char fct (i.e. rx51_kp_getc) | |
| CONFIG_VIDEO_LOGO display Linux logo in upper left corner | |
| CONFIG_VIDEO_BMP_LOGO use bmp_logo.h instead of linux_logo.h | |
| for logo. Requires CONFIG_VIDEO_LOGO | |
| CONFIG_CONSOLE_EXTRA_INFO | |
| additional board info beside | |
| the logo | |
| CONFIG_HIDE_LOGO_VERSION | |
| do not display bootloader | |
| version string | |
| When CONFIG_CFB_CONSOLE is defined, the video console is the | |
| default console. The serial console can be forced by setting the | |
| environment 'console=serial'. | |
| config CFB_CONSOLE_ANSI | |
| bool "Support ANSI escape sequences" | |
| depends on CFB_CONSOLE | |
| help | |
| This allows the colour buffer frame buffer driver to support | |
| a limited number of ANSI escape sequences (cursor control, | |
| erase functions and limited graphics rendition control). Normal | |
| output from U-Boot will pass through this filter. | |
| config VGA_AS_SINGLE_DEVICE | |
| bool "Set the video as an output-only device" | |
| depends on CFB_CONSOLE | |
| default y | |
| help | |
| If enable the framebuffer device will be initialized as an | |
| output-only device. The Keyboard driver will not be set up. This | |
| may be used if you have no keyboard device, or more than one | |
| (USB Keyboard, AT Keyboard). | |
| config VIDEO_SW_CURSOR | |
| bool "Enable a software cursor" | |
| depends on CFB_CONSOLE | |
| default y if CFB_CONSOLE | |
| help | |
| This draws a cursor after the last character. No blinking is | |
| provided. This makes it possible to see the current cursor | |
| position when entering text on the console. It is recommended to | |
| enable this. | |
| config CONSOLE_EXTRA_INFO | |
| bool "Display additional board information" | |
| depends on CFB_CONSOLE | |
| help | |
| Display additional board information strings that normally go to | |
| the serial port. When this option is enabled, a board-specific | |
| function video_get_info_str() is called to get the string for | |
| each line of the display. The function should return the string, | |
| which can be empty if there is nothing to display for that line. | |
| config CONSOLE_SCROLL_LINES | |
| int "Number of lines to scroll the console by" | |
| depends on CFB_CONSOLE || DM_VIDEO || LCD | |
| default 1 | |
| help | |
| When the console need to be scrolled, this is the number of | |
| lines to scroll by. It defaults to 1. Increasing this makes the | |
| console jump but can help speed up operation when scrolling | |
| is slow. | |
| config SYS_CONSOLE_BG_COL | |
| hex "Background colour" | |
| depends on CFB_CONSOLE | |
| default 0x00 | |
| help | |
| Defines the background colour for the console. The value is from | |
| 0x00 to 0xff and the meaning depends on the graphics card. | |
| Typically, 0x00 means black and 0xff means white. Do not set | |
| the background and foreground to the same colour or you will see | |
| nothing. | |
| config SYS_CONSOLE_FG_COL | |
| hex "Foreground colour" | |
| depends on CFB_CONSOLE | |
| default 0xa0 | |
| help | |
| Defines the foreground colour for the console. The value is from | |
| 0x00 to 0xff and the meaning depends on the graphics card. | |
| Typically, 0x00 means black and 0xff means white. Do not set | |
| the background and foreground to the same colour or you will see | |
| nothing. | |
| config LCD | |
| bool "Enable legacy LCD support" | |
| help | |
| Define this to enable LCD support (for output to LCD display). | |
| You will also need to select an LCD driver using an additional | |
| CONFIG option. See the README for details. Drives which have been | |
| converted to driver model will instead used CONFIG_DM_VIDEO. | |
| config VIDEO_DW_HDMI | |
| bool | |
| help | |
| Enables the common driver code for the Designware HDMI TX | |
| block found in SoCs from various vendors. | |
| As this does not provide any functionality by itself (but | |
| rather requires a SoC-specific glue driver to call it), it | |
| can not be enabled from the configuration menu. | |
| config VIDEO_SIMPLE | |
| bool "Simple display driver for preconfigured display" | |
| help | |
| Enables a simple generic display driver which utilizes the | |
| simple-framebuffer devicetree bindings. | |
| This driver assumes that the display hardware has been initialized | |
| before u-boot starts, and u-boot will simply render to the pre- | |
| allocated frame buffer surface. | |
| config VIDEO_DT_SIMPLEFB | |
| bool "Enable SimpleFB support for passing framebuffer to OS" | |
| help | |
| Enables the code to pass the framebuffer to the kernel as a | |
| simple framebuffer in the device tree. | |
| The video output is initialized by U-Boot, and kept by the | |
| kernel. | |
| endmenu |