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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-18 00:46:26 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-18 00:46:26 +0200
commit7616c0ad2087c7d244b8985390c63059a6223c45 (patch)
treec65d7e5dce8b6ec314b56ad2903c8760e2659753 /include/linux
parent3ad6776cca21f2456b7288f44f224b344ac3c4d0 (diff)
ide: add ide_atapi_{discard_data,write_zeros} inline helpers
Add ide_atapi_{discard_data,write_zeros} inline helpers to <linux/ide.h> and use them instead of home-brewn helpers in ide-{floppy,tape,scsi}. 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 'include/linux')
-rw-r--r--include/linux/ide.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h
index f4c7db572a1..2eb99cab4a3 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1297,4 +1297,26 @@ static inline u8 ide_read_error(ide_drive_t *drive)
return hwif->INB(hwif->io_ports[IDE_ERROR_OFFSET]);
}
+/*
+ * Too bad. The drive wants to send us data which we are not ready to accept.
+ * Just throw it away.
+ */
+static inline void ide_atapi_discard_data(ide_drive_t *drive, unsigned bcount)
+{
+ ide_hwif_t *hwif = drive->hwif;
+
+ /* FIXME: use ->atapi_input_bytes */
+ while (bcount--)
+ (void)hwif->INB(hwif->io_ports[IDE_DATA_OFFSET]);
+}
+
+static inline void ide_atapi_write_zeros(ide_drive_t *drive, unsigned bcount)
+{
+ ide_hwif_t *hwif = drive->hwif;
+
+ /* FIXME: use ->atapi_output_bytes */
+ while (bcount--)
+ hwif->OUTB(0, hwif->io_ports[IDE_DATA_OFFSET]);
+}
+
#endif /* _IDE_H */