ide: add ide_execute_pkt_cmd() helper
Add ide_execute_pkt_cmd() helper for executing PACKET command,
then convert ATAPI device drivers to use it.
As a nice side-effect this fixes ide-{floppy,tape,scsi} w.r.t.
ide_lock taking (ide-cd was OK).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 095e50a..0881ddc 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -555,14 +555,7 @@
ATAPI_WAIT_PC, cdrom_timer_expiry);
return ide_started;
} else {
- unsigned long flags;
-
- /* packet command */
- spin_lock_irqsave(&ide_lock, flags);
- hwif->OUTBSYNC(drive, WIN_PACKETCMD,
- hwif->io_ports.command_addr);
- ndelay(400);
- spin_unlock_irqrestore(&ide_lock, flags);
+ ide_execute_pkt_cmd(drive);
return (*handler) (drive);
}
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index da79248..0039789 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -696,9 +696,7 @@
return ide_started;
} else {
/* Issue the packet command */
- hwif->OUTBSYNC(drive, WIN_PACKETCMD,
- hwif->io_ports.command_addr);
- ndelay(400);
+ ide_execute_pkt_cmd(drive);
return (*pkt_xfer_routine) (drive);
}
}
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 7f2b4ed..dfe47d5 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -801,9 +801,19 @@
ndelay(400);
spin_unlock_irqrestore(&ide_lock, flags);
}
-
EXPORT_SYMBOL(ide_execute_command);
+void ide_execute_pkt_cmd(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ide_lock, flags);
+ hwif->OUTBSYNC(drive, WIN_PACKETCMD, hwif->io_ports.command_addr);
+ ndelay(400);
+ spin_unlock_irqrestore(&ide_lock, flags);
+}
+EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
/* needed below */
static ide_startstop_t do_reset1 (ide_drive_t *, int);
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index dc88431..71d07d7 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1056,9 +1056,7 @@
IDETAPE_WAIT_CMD, NULL);
return ide_started;
} else {
- hwif->OUTBSYNC(drive, WIN_PACKETCMD,
- hwif->io_ports.command_addr);
- ndelay(400);
+ ide_execute_pkt_cmd(drive);
return idetape_transfer_pc(drive);
}
}
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 8b1c783..7964cc1 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -574,9 +574,7 @@
return ide_started;
} else {
/* Issue the packet command */
- hwif->OUTBSYNC(drive, WIN_PACKETCMD,
- hwif->io_ports.command_addr);
- ndelay(400);
+ ide_execute_pkt_cmd(drive);
return idescsi_transfer_pc(drive);
}
}
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 5ab9773..3927996 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -822,6 +822,8 @@
void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int,
ide_expiry_t *);
+void ide_execute_pkt_cmd(ide_drive_t *);
+
ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8);
ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat);