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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-28 23:44:39 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-28 23:44:39 +0200 |
| commit | 1fc142589e58b20a67582974b8848595a2c7432e (patch) | |
| tree | 79b2006e761c70876d66a735fb30036cefb3f3e9 /drivers/ide/ide-iops.c | |
| parent | ide-{floppy,tape,scsi}: 400ns delay is required after executing the command (diff) | |
| download | linux-1fc142589e58b20a67582974b8848595a2c7432e.tar.xz linux-1fc142589e58b20a67582974b8848595a2c7432e.zip | |
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>
Diffstat (limited to 'drivers/ide/ide-iops.c')
| -rw-r--r-- | drivers/ide/ide-iops.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 7f2b4edc6369..dfe47d5eb157 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -801,9 +801,19 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler, 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); |