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cy82c693: correct DMA modes clipping 

* Mask device DMA masks by ATA_{S,M}WDMA2 in cy82c693_ide_dma_on().

* Remove clipping of DMA modes by id->tDMA in cy82c693_dma_enable():
  - id->tDMA may not be defined on newer devices
  - id->vendor6/id->tDMA word is in LE endianness
    (cy82c693 seems to be Alpha specific though)

* Bump driver version.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-01-26 20:13:00 +01:00
parent aea5d37560
commit a530201afe
1 changed files with 6 additions and 6 deletions
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12
drivers/ide/pci/cy82c693.c
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@ -1,5 +1,5 @@
/*
* linux/drivers/ide/pci/cy82c693.c Version 0.42 Oct 23, 2007
* linux/drivers/ide/pci/cy82c693.c Version 0.43 Nov 7, 2007
*
* Copyright (C) 1998-2000 Andreas S. Krebs (akrebs@altavista.net), Maintainer
* Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>, Integrator
@ -182,10 +182,7 @@ static void cy82c693_dma_enable (ide_drive_t *drive, int mode, int single)
if (mode>2) /* make sure we set a valid mode */
mode = 2;
if (mode > drive->id->tDMA) /* to be absolutly sure we have a valid mode */
mode = drive->id->tDMA;
index = (HWIF(drive)->channel==0) ? CY82_INDEX_CHANNEL0 : CY82_INDEX_CHANNEL1;
#if CY82C693_DEBUG_LOGS
@ -250,7 +247,10 @@ static int cy82c693_ide_dma_on (ide_drive_t *drive)
mmode = id->dma_mword & (id->dma_mword >> 8);
smode = id->dma_1word & (id->dma_1word >> 8);
mmode &= ATA_MWDMA2;
smode &= ATA_SWDMA2;
if (mmode != 0) {
/* enable multi */
cy82c693_dma_enable(drive, (mmode >> 1), 0);