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Fix ATAPI DMA. We need to set the proper flags for DMA modes.

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sos 2005-05-11 12:41:35 +00:00
parent 31532d6fec
commit eb109cd6d5
1 changed files with 3 additions and 1 deletions
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4
sys/dev/ata/ata-lowlevel.c
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@ -670,9 +670,11 @@ ata_generic_command(struct ata_request *request)
int timeout = 5000;
/* issue packet command to controller */
if (request->flags & ATA_R_DMA)
ATA_IDX_OUTB(ch, ATA_FEATURE, ATA_F_DMA);
ATA_IDX_OUTB(ch, ATA_CYL_LSB, request->transfersize);
ATA_IDX_OUTB(ch, ATA_CYL_MSB, request->transfersize >> 8);
ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_PACKET_CMD);
ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_PACKET_CMD);
/* command interrupt device ? just return and wait for interrupt */
if ((atadev->param.config & ATA_DRQ_MASK) == ATA_DRQ_INTR)