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Fix more ATAPI breakage.

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Apparently some devices are very picky on details :)
This commit is contained in:
Søren Schmidt 2005-05-13 07:58:05 +00:00
parent 5a7a21e591
commit bb8a0cf2cf
1 changed files with 9 additions and 3 deletions
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12
sys/dev/ata/ata-lowlevel.c
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@ -670,10 +670,16 @@ ata_generic_command(struct ata_request *request)
int timeout = 5000;
/* issue packet command to controller */
if (request->flags & ATA_R_DMA)
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_CYL_LSB, 0);
ATA_IDX_OUTB(ch, ATA_CYL_MSB, 0);
}
else {
ATA_IDX_OUTB(ch, ATA_FEATURE, 0);
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);
/* command interrupt device ? just return and wait for interrupt */