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Diffstat (limited to 'Documentation/fb/s3fb.txt')
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diff --git a/Documentation/fb/s3fb.txt b/Documentation/fb/s3fb.txt deleted file mode 100644 index 2c97770bdbaa..000000000000 --- a/Documentation/fb/s3fb.txt +++ /dev/null @@ -1,82 +0,0 @@ - - s3fb - fbdev driver for S3 Trio/Virge chips - =========================================== - - -Supported Hardware -================== - - S3 Trio32 - S3 Trio64 (and variants V+, UV+, V2/DX, V2/GX) - S3 Virge (and variants VX, DX, GX and GX2+) - S3 Plato/PX (completely untested) - S3 Aurora64V+ (completely untested) - - - only PCI bus supported - - only BIOS initialized VGA devices supported - - probably not working on big endian - -I tested s3fb on Trio64 (plain, V+ and V2/DX) and Virge (plain, VX, DX), -all on i386. - - -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) on (only on Virge VX) - * 32 bpp truecolor mode (RGB 888) on (not on Virge VX) - * text mode (activated by bpp = 0) - * interlaced mode variant (not available in text mode) - * doublescan mode variant (not available in text mode) - * panning in both directions - * suspend/resume support - * DPMS support - -Text mode is supported even in higher resolutions, but there is limitation to -lower pixclocks (maximum usually between 50-60 MHz, depending on specific -hardware, i get best results from plain S3 Trio32 card - about 75 MHz). This -limitation is not enforced by driver. Text mode supports 8bit wide fonts only -(hardware limitation) and 16bit tall fonts (driver limitation). Text mode -support is broken on S3 Trio64 V2/DX. - -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 - * Zorro bus support - * MMIO support - * 24 bpp mode support on more cards - * support for fontwidths != 8 in 4 bpp modes - * support for fontheight != 16 in text mode - * composite and external sync (is anyone able to test this?) - * hardware cursor - * video overlay support - * vsync synchronization - * feature connector support - * acceleration support (8514-like 2D, Virge 3D, busmaster transfers) - * better values for some magic registers (performance issues) - - -Known bugs -========== - - * cursor disable in text mode doesn't work - * text mode broken on S3 Trio64 V2/DX - - --- -Ondrej Zajicek <santiago@crfreenet.org> |