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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-07-15 21:21:58 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-07-15 21:21:58 +0200
commit594c16d8dd54cd7b1c5ef1ec3ac0f6bf34301dad (patch)
tree4891a8ab4e998ba00db51e4672da64fd83663002 /drivers/scsi
parentf83cbc77b0d5521b4f0f591ede4870316944481a (diff)
ide: add ide_transfer_pc() helper
* Add ide-atapi.c file for generic ATAPI support together with CONFIG_IDE_ATAPI config option. * Add generic ide_transfer_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 c9fdf60c9dc..d41348f2245 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -453,36 +453,10 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
static ide_startstop_t idescsi_transfer_pc(ide_drive_t *drive)
{
- ide_hwif_t *hwif = drive->hwif;
idescsi_scsi_t *scsi = drive_to_idescsi(drive);
- struct ide_atapi_pc *pc = scsi->pc;
- ide_startstop_t startstop;
- u8 ireason;
-
- if (ide_wait_stat(&startstop,drive,DRQ_STAT,BUSY_STAT,WAIT_READY)) {
- printk(KERN_ERR "%s: Strange, packet command initiated yet "
- "DRQ isn't asserted\n", drive->name);
- return startstop;
- }
- ireason = hwif->INB(hwif->io_ports.nsect_addr);
- if ((ireason & CD) == 0 || (ireason & IO)) {
- printk(KERN_ERR "%s: (IO,CoD) != (0,1) while issuing "
- "a packet command\n", drive->name);
- return ide_do_reset (drive);
- }
- /* Set the interrupt routine */
- ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry);
-
- if (pc->flags & PC_FLAG_DMA_OK) {
- pc->flags |= PC_FLAG_DMA_IN_PROGRESS;
- hwif->dma_ops->dma_start(drive);
- }
-
- /* Send the actual packet */
- hwif->output_data(drive, NULL, scsi->pc->c, 12);
-
- return ide_started;
+ return ide_transfer_pc(drive, scsi->pc, idescsi_pc_intr,
+ get_timeout(scsi->pc), idescsi_expiry);
}
static inline int idescsi_set_direction(struct ide_atapi_pc *pc)