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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-23 19:55:54 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-23 19:55:54 +0200 |
| commit | 1823649b5abb77ffe638178bc5253249d3ecd17d (patch) | |
| tree | 154d876b89cf010568d18105913c7fbca8d7cba9 /drivers/ide/ide-iops.c | |
| parent | 88a72109b2256bf2974f324a8f890b4a06faf7e9 (diff) | |
| download | lwn-1823649b5abb77ffe638178bc5253249d3ecd17d.tar.gz lwn-1823649b5abb77ffe638178bc5253249d3ecd17d.zip | |
ide: add ide_read_bcount_and_ireason() helper
Add ide_read_bcount_and_ireason() helper and use it instead of ->INB
in {cdrom_newpc,ide_pc}_intr().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-iops.c')
| -rw-r--r-- | drivers/ide/ide-iops.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 113db8744736..cb11c7861a50 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -405,6 +405,21 @@ u8 ide_read_error(ide_drive_t *drive) } EXPORT_SYMBOL_GPL(ide_read_error); +void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason) +{ + ide_task_t task; + + memset(&task, 0, sizeof(task)); + task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM | + IDE_TFLAG_IN_NSECT; + + drive->hwif->tf_read(drive, &task); + + *bcount = (task.tf.lbah << 8) | task.tf.lbam; + *ireason = task.tf.nsect & 3; +} +EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason); + void ide_fix_driveid (struct hd_driveid *id) { #ifndef __LITTLE_ENDIAN |