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ide-tape: remove mtio.h related comments 

Those are already in mtio.h.

Bart:
- undo 'unsigned int/unsigned long' -> 'uint/ulong' conversion

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Borislav Petkov 2008-02-02 19:56:51 +01:00 committed by Bartlomiej Zolnierkiewicz
parent 419d4741ce
commit d99c9da215
1 changed files with 15 additions and 81 deletions
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96
drivers/ide/ide-tape.c
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@ -3152,69 +3152,20 @@ static int idetape_write_filemark (ide_drive_t *drive)
}
/*
* idetape_mtioctop is called from idetape_chrdev_ioctl when
* the general mtio MTIOCTOP ioctl is requested.
* Called from idetape_chrdev_ioctl when the general mtio MTIOCTOP ioctl is
* requested.
*
* We currently support the following mtio.h operations:
* Note: MTBSF and MTBSFM are not supported when the tape doesn't support
* spacing over filemarks in the reverse direction. In this case, MTFSFM is also
* usually not supported (it is supported in the rare case in which we crossed
* the filemark during our read-ahead pipelined operation mode).
*
* MTFSF - Space over mt_count filemarks in the positive direction.
* The tape is positioned after the last spaced filemark.
* The following commands are currently not supported:
*
* MTFSFM - Same as MTFSF, but the tape is positioned before the
* last filemark.
*
* MTBSF - Steps background over mt_count filemarks, tape is
* positioned before the last filemark.
*
* MTBSFM - Like MTBSF, only tape is positioned after the last filemark.
*
* Note:
*
* MTBSF and MTBSFM are not supported when the tape doesn't
* support spacing over filemarks in the reverse direction.
* In this case, MTFSFM is also usually not supported (it is
* supported in the rare case in which we crossed the filemark
* during our read-ahead pipelined operation mode).
*
* MTWEOF - Writes mt_count filemarks. Tape is positioned after
* the last written filemark.
*
* MTREW - Rewinds tape.
*
* MTLOAD - Loads the tape.
*
* MTOFFL - Puts the tape drive "Offline": Rewinds the tape and
* MTUNLOAD prevents further access until the media is replaced.
*
* MTNOP - Flushes tape buffers.
*
* MTRETEN - Retension media. This typically consists of one end
* to end pass on the media.
*
* MTEOM - Moves to the end of recorded data.
*
* MTERASE - Erases tape.
*
* MTSETBLK - Sets the user block size to mt_count bytes. If
* mt_count is 0, we will attempt to autodetect
* the block size.
*
* MTSEEK - Positions the tape in a specific block number, where
* each block is assumed to contain which user_block_size
* bytes.
*
* MTSETPART - Switches to another tape partition.
*
* MTLOCK - Locks the tape door.
*
* MTUNLOCK - Unlocks the tape door.
*
* The following commands are currently not supported:
*
* MTFSS, MTBSS, MTWSM, MTSETDENSITY,
* MTSETDRVBUFFER, MT_ST_BOOLEANS, MT_ST_WRITE_THRESHOLD.
* MTFSS, MTBSS, MTWSM, MTSETDENSITY, MTSETDRVBUFFER, MT_ST_BOOLEANS,
* MT_ST_WRITE_THRESHOLD.
*/
static int idetape_mtioctop (ide_drive_t *drive,short mt_op,int mt_count)
static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count)
{
idetape_tape_t *tape = drive->driver_data;
idetape_pc_t pc;
@ -3329,29 +3280,12 @@ static int idetape_mtioctop (ide_drive_t *drive,short mt_op,int mt_count)
}
/*
* Our character device ioctls.
*
* General mtio.h magnetic io commands are supported here, and not in
* the corresponding block interface.
*
* The following ioctls are supported:
*
* MTIOCTOP - Refer to idetape_mtioctop for detailed description.
*
* MTIOCGET - The mt_dsreg field in the returned mtget structure
* will be set to (user block size in bytes <<
* MT_ST_BLKSIZE_SHIFT) & MT_ST_BLKSIZE_MASK.
*
* The mt_blkno is set to the current user block number.
* The other mtget fields are not supported.
*
* MTIOCPOS - The current tape "block position" is returned. We
* assume that each block contains user_block_size
* bytes.
*
* Our own ide-tape ioctls are supported on both interfaces.
* Our character device ioctls. General mtio.h magnetic io commands are
* supported here, and not in the corresponding block interface. Our own
* ide-tape ioctls are supported on both interfaces.
*/
static int idetape_chrdev_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
static int idetape_chrdev_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct ide_tape_obj *tape = ide_tape_f(file);
ide_drive_t *drive = tape->drive;