ide-tape: factor out waiting for good ireason from idetape_transfer_pc()
Factor out waiting for good ireason from idetape_transfer_pc()
to ide_tape_wait_ireason() as a preparation for adding generic
ide_transfer_pc() helper.
There should be no functional changes caused by this patch.
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 1ce8b31..63b837e 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -947,21 +947,12 @@
* again, the callback function will be called and then we will handle the next
* request.
*/
-static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive)
+
+static u8 ide_tape_wait_ireason(ide_drive_t *drive, u8 ireason)
{
ide_hwif_t *hwif = drive->hwif;
- idetape_tape_t *tape = drive->driver_data;
- struct ide_atapi_pc *pc = tape->pc;
int retries = 100;
- ide_startstop_t startstop;
- u8 ireason;
- if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) {
- printk(KERN_ERR "%s: Strange, packet command initiated yet "
- "DRQ isn't asserted\n", drive->name);
- return startstop;
- }
- ireason = hwif->INB(hwif->io_ports.nsect_addr);
while (retries-- && ((ireason & CD) == 0 || (ireason & IO))) {
printk(KERN_ERR "%s: (IO,CoD != (0,1) while issuing "
"a packet command, retrying\n", drive->name);
@@ -975,6 +966,27 @@
ireason &= ~IO;
}
}
+
+ return ireason;
+}
+
+static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ idetape_tape_t *tape = drive->driver_data;
+ struct ide_atapi_pc *pc = tape->pc;
+ ide_startstop_t startstop;
+ u8 ireason;
+
+ if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) {
+ printk(KERN_ERR "%s: Strange, packet command initiated yet "
+ "DRQ isn't asserted\n", drive->name);
+ return startstop;
+ }
+
+ ireason = hwif->INB(hwif->io_ports.nsect_addr);
+ ireason = ide_tape_wait_ireason(drive, ireason);
+
if ((ireason & CD) == 0 || (ireason & IO)) {
printk(KERN_ERR "%s: (IO,CoD) != (0,1) while issuing "
"a packet command\n", drive->name);