history.txt

pc机上经由pci连接的ata和atapi设备驱动

                    ------------------------
                    ADVDRVR HISTORY.TXT FILE
                    ------------------------

                         by Hale Landis

Here is a brief list of the new and changed things in the last
few versions of ADVDRVR and the EXAMPLE1/EXAMPLE2 programs:

                      -------------------
                      ADVDRVR CHANGE LIST
                      -------------------

Version 1M

   The BMCR/BMIDE Status register Error bit is now checked at the
   end of every reset or command (PIO and DMA).  Traditionally
   this bit was used only to report PCI bus error conditions
   during DMA operations.  Now it seems that some SATA host
   controllers are using this bit to report SATA packet
   transmission errors during any SATA interface activity.

   Checking for BSY=0 and DRQ=0 in sub_select() (in ADVIOSUB.C)
   was fixed to conform to the ATA/ATAPI standards.

Version 1I, 1J, 1K, 1L

   These versions were skipped.

Version 1H

   Changes made to interrupt handling - see ADVIOINT.C.

Version 1G

   reg_config() in ADVIOREG.C recognizes the new ATA/ATAPI-7
   signature values for SATA devices.

Version 1E and 1F

   Version 1F is the same as version 1E.

   Additional checking for buffer overrun was added.

Version 1D

   Data transfer functions in ATAIOPIO.C where rewritten so that
   wrapping the offset portion of the I/O buffer address is not
   possible.

Versions 1B and 1C

   Debug versions.

Version 1A

   DMA data transfer commands now require that interrupt usage.
   The file ADVIOINT.C is new.  Calls to functions in ADVIOINT.C
   were added to ADVIOPCI.C.

Version 0H

   The command time out checking function in ADVIOTMR.C was
   changed to make it less sensitive to various BIOS timer
   implementations.

Version 0G

   The first release of ADVDRVR.


QUESTIONS OR PROBLEMS?
----------------------

Send your question(s) or problem description(s) to Hale Landis
via email at this address:

   [e-mail]

Visit Hale's web site:

   www.ata-atapi.com

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