diff options
| author | Borislav Petkov <petkovbb@googlemail.com> | 2008-02-22 11:51:31 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2008-02-22 11:51:31 +1100 |
| commit | 0fc307aad1b3f3b7994c2ae770ecd1a03f017d5d (patch) | |
| tree | 8257f530cd2dfa2dadc369ce71ba286419dbd5eb /include | |
| parent | da985a72a851b70a5d18dd8f17d2fded97232d65 (diff) | |
ide: add generic packet command representation ide_atapi_pc
This new struct unifies ide{-floppy,-tape,-scsi}'s view of a packet command. For now,
it represents the common denominator between the three drivers while adding driver-
specific members at the end of the struct which will be merged/simplified into the
generic ATAPI handling code in later steps, or removed completely.
Bart:
- move struct ide_atapi_pc outside of #ifdef/#endif CONFIG_IDE_PROC_FS
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ide.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index e78851ea07ea..9a84939b7e52 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -597,6 +597,53 @@ int set_io_32bit(ide_drive_t *, int); int set_pio_mode(ide_drive_t *, int); int set_using_dma(ide_drive_t *, int); +struct ide_atapi_pc { + /* actual packet bytes */ + u8 c[12]; + /* incremented on each retry */ + int retries; + int error; + + /* bytes to transfer */ + int req_xfer; + /* bytes actually transferred */ + int xferred; + + /* data buffer */ + u8 *buf; + /* current buffer position */ + u8 *cur_pos; + int buf_size; + /* missing/available data on the current buffer */ + int b_count; + + /* the corresponding request */ + struct request *rq; + + unsigned long flags; + + /* + * those are more or less driver-specific and some of them are subject + * to change/removal later. + */ + u8 pc_buf[256]; + void (*idefloppy_callback) (ide_drive_t *); + ide_startstop_t (*idetape_callback) (ide_drive_t *); + + /* idetape only */ + struct idetape_bh *bh; + char *b_data; + + /* idescsi only for now */ + struct scatterlist *sg; + unsigned int sg_cnt; + + struct scsi_cmnd *scsi_cmd; + void (*done) (struct scsi_cmnd *); + + unsigned long timeout; +}; + #ifdef CONFIG_IDE_PROC_FS /* * configurable drive settings |