README revision 1.1
1 1.1 mrg $XFree86: xc/programs/Xserver/hw/xfree86/drivers/apm/README,v 1.5 2000/02/11 22:35:55 dawes Exp $ 2 1.1 mrg 3 1.1 mrg Note 1: This driver is work in progress. It might not work at all. 4 1.1 mrg Want to help? Docs are at 5 1.1 mrg ftp://beta.xfree86.org/pub/xf86/devel/Documentation/apm 6 1.1 mrg 7 1.1 mrg This is the Alliance Promotion driver for XFree86 4.0+. It currently only 8 1.1 mrg supports the AT3D, AT25 chipsets (found on various Voodoo-Rush cards) and AT24. 9 1.1 mrg There is incomplete support for the 6422. The 6422 chips are supported in the 10 1.1 mrg XFree86 3.3.x series. 11 1.1 mrg 12 1.1 mrg What has worked on my computer : 13 1.1 mrg - XAA for 8/16/24/32 bpp 14 1.1 mrg - DGA and DGA2 15 1.1 mrg - DPMS 16 1.1 mrg - glide2x 17 1.1 mrg - using as a module 18 1.1 mrg - shadow framebuffer 19 1.1 mrg - AT3D 20 1.1 mrg - AT24 21 1.1 mrg - AP6422 (although with problems, including locks) 22 1.1 mrg - multi card setup (with and without Xinerama) 23 1.1 mrg - Xv images, even with (slightly modified) glide2x ; note that there is 24 1.1 mrg still a little problem with vertical offset. 25 1.1 mrg 26 1.1 mrg There is some support for PC-98 with the help of Isao Ohishi 27 1.1 mrg (ohishi (a] aero.rim.or.jp). It's still under development. I hope that 8bpp 28 1.1 mrg works correctly. 29 1.1 mrg 30 1.1 mrg What has not worked : 31 1.1 mrg - I2C (I'm not sure my card, Hercules 128/3D, has proper cabling) 32 1.1 mrg 33 1.1 mrg What is untested : 34 1.1 mrg 35 1.1 mrg What should be done : 36 1.1 mrg - overlays (with the video engine, everything should be overlayable 37 1.1 mrg with everything) 38 1.1 mrg - (why not) 3210 support 39 1.1 mrg 40 1.1 mrg 41 1.1 mrg Loc Greni 42 1.1 mrg 43 1.1 mrg Authors: 44 1.1 mrg ----------------------------------------------------------------------- 45 1.1 mrg Kent Hamilton Initial creation. 46 1.1 mrg Henrik Harmsen Lots of additions and fixes. <hch (a] cd.chalmers.se> 47 1.1 mrg Loic Grenie Conversion to 4.0. <grenie (a] lami.univ-evry.fr> 48 1.1 mrg Additions and fixes. 49 1.1 mrg 50 1.1 mrg 51 1.1 mrg History: 52 1.1 mrg ----------------------------------------------------------------------- 53 1.1 mrg Created by Kent Hamilton for Xfree86 from source from Alliance 54 1.1 mrg 55 1.1 mrg Modified 1997-06 by Henrik Harmsen 56 1.1 mrg - Added support for AT3D 57 1.1 mrg - Acceleration added for 8,16,32bpp: (for AT3D and AT24) 58 1.1 mrg - Filled rectangles 59 1.1 mrg - Screen-screen bitblts 60 1.1 mrg - Host-screen color expansion bitblts for text 61 1.1 mrg - DPMS support 62 1.1 mrg - Enabled hardware cursor code (also in 8bpp) 63 1.1 mrg - Set to programmable VCLK clock 64 1.1 mrg - Set MCLK to 57.3 MHz on AT3D. 65 1.1 mrg - Various bugfixes and cleanups 66 1.1 mrg 67 1.1 mrg Modified 1997-07-06 by Henrik Harmsen 68 1.1 mrg - Fixed bug that made the HW cursor screw up on VT switches 69 1.1 mrg - Probably fixed bug that screwed up the screen when using 70 1.1 mrg screen-screen bitblts. This forced me to put an ApmSync() at 71 1.1 mrg the end of ApmSubsequentScreenToScreenCopy() which makes 72 1.1 mrg me unhappy... But: Better it works than not... 73 1.1 mrg 74 1.1 mrg Modified 1997-10-19 by Henrik Harmsen 75 1.1 mrg - HW line drawing. 76 1.1 mrg - HW clipping. 77 1.1 mrg - Added support for ROP's. 78 1.1 mrg - Text acceleration now lots faster and support for accelerated 79 1.1 mrg proportional text. (Uses SCANLINE_PAD_DWORD + clipping). 80 1.1 mrg - Combined write for many register writes gives good 81 1.1 mrg general speedup. (write x+y as a single 32 bit entity, rather 82 1.1 mrg obvious, really...:-) 83 1.1 mrg - Now waits for correct number of free slots in FIFO before 84 1.1 mrg issuing writes to the card. 85 1.1 mrg This seems to have eliminated the last instances of dropped 86 1.1 mrg interrupts from serial IO and no more lost packets in PPP :-) 87 1.1 mrg - Converted cursor support to use XAA interface. 88 1.1 mrg - Fixed ApmSync(). Finally removed call to ApmSync at end of 89 1.1 mrg ApmSubsequentScreenToScreenCopy() :-) 90 1.1 mrg 91 1.1 mrg Modified 1998-03-29 by Henrik Harmsen 92 1.1 mrg - Added DGA support. 93 1.1 mrg - Added accel support for AP6422. Fixed AT24 accel support. 94 1.1 mrg - Fixed clock register calculation for AP6422 and AT24. 95 1.1 mrg - DPMS support for AT24 & AP6422. 96 1.1 mrg - 2% faster text accel for AT24/AT3D :-) 97 1.1 mrg 98 1.1 mrg Modified 1998-12-18 by Loic Grenie 99 1.1 mrg - Converted to Xfree86 4.0 driver interface. (Only support for 100 1.1 mrg AT25/AT3D chips). 101 1.1 mrg 102 1.1 mrg Modified 1999-03-14 by Henrik Harmsen 103 1.1 mrg - Various fixes to bring it up to 3.9Pd. 104 1.1 mrg - Added preliminary (completely untested) support for dynamic 105 1.1 mrg loading. 106 1.1 mrg 107 1.1 mrg Modified 1999-07-07 by Loc Greni 108 1.1 mrg - Converted to new RAC. Support for DGA and DGA2, I2C, Rush extension. 109 1.1 mrg 110 1.1 mrg Modified 2000-02-10 by Loc Greni 111 1.1 mrg - Bug fixes 112 1.1 mrg - AP6422 (bugged !) 113 1.1 mrg - Xv driver 114
Indexes created Tue Oct 27 00:25:24 UTC 2026