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Diffstat (limited to 'Documentation/fb/arkfb.txt')
| -rw-r--r-- | Documentation/fb/arkfb.txt | 68 |
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diff --git a/Documentation/fb/arkfb.txt b/Documentation/fb/arkfb.txt deleted file mode 100644 index e8487a9d6a05..000000000000 --- a/Documentation/fb/arkfb.txt +++ /dev/null @@ -1,68 +0,0 @@ - - arkfb - fbdev driver for ARK Logic chips - ======================================== - - -Supported Hardware -================== - - ARK 2000PV chip - ICS 5342 ramdac - - - only BIOS initialized VGA devices supported - - probably not working on big endian - - -Supported Features -================== - - * 4 bpp pseudocolor modes (with 18bit palette, two variants) - * 8 bpp pseudocolor mode (with 18bit palette) - * 16 bpp truecolor modes (RGB 555 and RGB 565) - * 24 bpp truecolor mode (RGB 888) - * 32 bpp truecolor mode (RGB 888) - * text mode (activated by bpp = 0) - * doublescan mode variant (not available in text mode) - * panning in both directions - * suspend/resume support - -Text mode is supported even in higher resolutions, but there is limitation to -lower pixclocks (i got maximum about 70 MHz, it is dependent on specific -hardware). This limitation is not enforced by driver. Text mode supports 8bit -wide fonts only (hardware limitation) and 16bit tall fonts (driver -limitation). Unfortunately character attributes (like color) in text mode are -broken for unknown reason, so its usefulness is limited. - -There are two 4 bpp modes. First mode (selected if nonstd == 0) is mode with -packed pixels, high nibble first. Second mode (selected if nonstd == 1) is mode -with interleaved planes (1 byte interleave), MSB first. Both modes support -8bit wide fonts only (driver limitation). - -Suspend/resume works on systems that initialize video card during resume and -if device is active (for example used by fbcon). - - -Missing Features -================ -(alias TODO list) - - * secondary (not initialized by BIOS) device support - * big endian support - * DPMS support - * MMIO support - * interlaced mode variant - * support for fontwidths != 8 in 4 bpp modes - * support for fontheight != 16 in text mode - * hardware cursor - * vsync synchronization - * feature connector support - * acceleration support (8514-like 2D) - - -Known bugs -========== - - * character attributes (and cursor) in text mode are broken - --- -Ondrej Zajicek <santiago@crfreenet.org> |