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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-07-15 21:22:00 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-07-15 21:22:00 +0200
commit6bf1641ca1c7554f0da54aaf89788731b541bacc (patch)
treece7c371971e68b650d87e67935e460c948f4cb20 /drivers/scsi
parent28c7214bd8c2bbd4873b8f1e7f58d86d3731124f (diff)
ide: add ide_issue_pc() helper
Add generic ide_issue_pc() helper to ide-atapi.c and then convert ide-{floppy,tape,scsi} device drivers to use it. There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/ide-scsi.c30
1 files changed, 2 insertions, 28 deletions
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index b7c5e8391575..32415466fbfe 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -502,38 +502,12 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive,
struct ide_atapi_pc *pc)
{
idescsi_scsi_t *scsi = drive_to_idescsi(drive);
- ide_hwif_t *hwif = drive->hwif;
- u16 bcount;
- u8 dma = 0;
/* Set the current packet command */
scsi->pc = pc;
- /* We haven't transferred any data yet */
- pc->xferred = 0;
- pc->cur_pos = pc->buf;
- /* Request to transfer the entire buffer at once */
- bcount = min(pc->req_xfer, 63 * 1024);
-
- if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) {
- hwif->sg_mapped = 1;
- dma = !hwif->dma_ops->dma_setup(drive);
- hwif->sg_mapped = 0;
- }
-
- if (!dma)
- pc->flags &= ~PC_FLAG_DMA_OK;
- ide_pktcmd_tf_load(drive, 0, bcount, dma);
-
- if (pc->flags & PC_FLAG_DRQ_INTERRUPT) {
- ide_execute_command(drive, WIN_PACKETCMD, &idescsi_transfer_pc,
- get_timeout(pc), idescsi_expiry);
- return ide_started;
- } else {
- /* Issue the packet command */
- ide_execute_pkt_cmd(drive);
- return idescsi_transfer_pc(drive);
- }
+ return ide_issue_pc(drive, pc, idescsi_transfer_pc,
+ get_timeout(pc), idescsi_expiry);
}
/*