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Date: Thu, 10 Apr 2008 22:26:52 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: linux-ide@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] 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@...il.com>
---
drivers/ide/ide-cd.c | 9 +--------
drivers/ide/ide-floppy.c | 4 +---
drivers/ide/ide-iops.c | 12 +++++++++++-
drivers/ide/ide-tape.c | 4 +---
drivers/scsi/ide-scsi.c | 4 +---
include/linux/ide.h | 2 ++
6 files changed, 17 insertions(+), 18 deletions(-)
Index: b/drivers/ide/ide-cd.c
===================================================================
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -555,14 +555,7 @@ static ide_startstop_t cdrom_start_packe
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);
}
Index: b/drivers/ide/ide-floppy.c
===================================================================
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -696,9 +696,7 @@ static ide_startstop_t idefloppy_issue_p
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);
}
}
Index: b/drivers/ide/ide-iops.c
===================================================================
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -801,9 +801,19 @@ void ide_execute_command(ide_drive_t *dr
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);
Index: b/drivers/ide/ide-tape.c
===================================================================
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1056,9 +1056,7 @@ static ide_startstop_t idetape_issue_pc(
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);
}
}
Index: b/drivers/scsi/ide-scsi.c
===================================================================
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -574,9 +574,7 @@ static ide_startstop_t idescsi_issue_pc(
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);
}
}
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -811,6 +811,8 @@ extern void ide_set_handler (ide_drive_t
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);
--
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