diff options
| -rw-r--r-- | drivers/ide/ide-floppy.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index dbefe35c1396..1df6a3143596 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -534,6 +534,7 @@ static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; idefloppy_floppy_t *floppy = drive->driver_data; + struct ide_atapi_pc *pc = floppy->pc; ide_expiry_t *expiry; unsigned int timeout; ide_startstop_t startstop; @@ -568,6 +569,12 @@ static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive) ide_set_handler(drive, &idefloppy_pc_intr, timeout, expiry); + /* Begin DMA, if necessary */ + if (pc->flags & PC_FLAG_DMA_OK) { + pc->flags |= PC_FLAG_DMA_IN_PROGRESS; + hwif->dma_ops->dma_start(drive); + } + if ((floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) == 0) /* Send the actual packet */ hwif->output_data(drive, NULL, floppy->pc->c, 12); @@ -633,13 +640,10 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) dma = !hwif->dma_ops->dma_setup(drive); - ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_DEVICE, bcount, dma); + if (!dma) + pc->flags &= ~PC_FLAG_DMA_OK; - if (dma) { - /* Begin DMA, if necessary */ - pc->flags |= PC_FLAG_DMA_IN_PROGRESS; - hwif->dma_ops->dma_start(drive); - } + ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_DEVICE, bcount, dma); if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) { /* Issue the packet command */ |