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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-13 17:47:49 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-13 17:47:49 +0200 |
| commit | 74af21cf4d0ab67df53608753a443dc7904ec12e (patch) | |
| tree | 0e5cbfdc12dbd00fcde2ccf08c7df59e3424ff11 /include | |
| parent | ide-pmac: remove pmac_ide_{m,u}dma_enable() (take 2) (diff) | |
| download | linux-74af21cf4d0ab67df53608753a443dc7904ec12e.tar.xz linux-74af21cf4d0ab67df53608753a443dc7904ec12e.zip | |
ide: add __ide_wait_stat() helper
* Split off checking of the status register from ide_wait_stat() to
__ide_wait_stat() helper.
* Use the new helper in ide_config_drive_speed(). The only change in the
functionality is that the function now fails if after 20 sec (WAIT_CMD)
device is still busy (BUSY_STAT bit is set) while previously instead of
failing the function continued with checking for the correct device status
(which would give the device additional 10 usec to clear BUSY_STAT bit).
* Remove stale comment for ide_config_drive_speed().
* Remove duplicate comment for ide_wait_stat() from <linux/ide.h>.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ide.h | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index 85d448b4abec..3a8cb81bb61d 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1079,16 +1079,7 @@ extern void ide_fix_driveid(struct hd_driveid *); */ extern void ide_fixstring(u8 *, const int, const int); -/* - * This routine busy-waits for the drive status to be not "busy". - * It then checks the status for all of the "good" bits and none - * of the "bad" bits, and if all is okay it returns 0. All other - * cases return 1 after doing "*startstop = ide_error()", and the - * caller should return the updated value of "startstop" in this case. - * "startstop" is unchanged when the function returns 0; - * (startstop, drive, good, bad, timeout) - */ -extern int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); +int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); /* * Start a reset operation for an IDE interface. |