Messages in this thread Patch in this message | | | Subject | [PATCH 6/6] ide-atapi: teach ide atapi about drive->waiting_for_dma | Date | Thu, 4 Dec 2008 07:43:29 +0100 | From | Borislav Petkov <> |
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In addition, we wait for DRQ to be asserted by repeatedly polling device status no matter what DRQ type each device implements.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com> --- drivers/ide/ide-atapi.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index bb867a0..a43bed3 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -543,6 +543,11 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive) return startstop; } + if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { + if (drive->dma) + drive->waiting_for_dma = 1; + } + ireason = ide_read_ireason(drive); if (drive->media == ide_tape && (drive->dev_flags & IDE_DFLAG_SCSI) == 0) @@ -639,6 +644,8 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout) /* Issue the packet command */ if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { + if (drive->dma) + drive->waiting_for_dma = 0; ide_execute_command(drive, ATA_CMD_PACKET, ide_transfer_pc, timeout, expiry); return ide_started; -- 1.6.0.4
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