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| author | Tejun Heo <htejun@gmail.com> | 2007-11-27 19:43:39 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2008-01-23 05:24:11 -0500 |
| commit | 6357357cae7794dcb89cace758108dec612e7ed5 (patch) | |
| tree | 6fc39d16ff795f34b4f8a987966fd5195b1d9039 /include/linux/libata.h | |
| parent | f8ab6d8e15a9b978f79aee794c263014c2959dfc (diff) | |
| download | kernel_samsung_smdk4412-6357357cae7794dcb89cace758108dec612e7ed5.zip kernel_samsung_smdk4412-6357357cae7794dcb89cace758108dec612e7ed5.tar.gz kernel_samsung_smdk4412-6357357cae7794dcb89cace758108dec612e7ed5.tar.bz2 | |
libata: export xfermode / PATA timing related functions
Export the following xfermode related functions.
* ata_pack_xfermask()
* ata_unpack_xfermask()
* ata_xfer_mask2mode()
* ata_xfer_mode2mask()
* ata_xfer_mode2shift()
* ata_mode_string()
* ata_id_xfermask()
* ata_timing_find_mode()
These functions will be used later by LLD updates. While at it,
change unsigned short @speed to u8 @xfer_mode in
ata_timing_find_mode() for consistency.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include/linux/libata.h')
| -rw-r--r-- | include/linux/libata.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 131fb66..083dd77 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -851,6 +851,15 @@ extern void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf); extern void ata_tf_to_fis(const struct ata_taskfile *tf, u8 pmp, int is_cmd, u8 *fis); extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf); +extern unsigned int ata_pack_xfermask(unsigned int pio_mask, + unsigned int mwdma_mask, unsigned int udma_mask); +extern void ata_unpack_xfermask(unsigned int xfer_mask, unsigned int *pio_mask, + unsigned int *mwdma_mask, unsigned int *udma_mask); +extern u8 ata_xfer_mask2mode(unsigned int xfer_mask); +extern unsigned int ata_xfer_mode2mask(u8 xfer_mode); +extern int ata_xfer_mode2shift(unsigned int xfer_mode); +extern const char *ata_mode_string(unsigned int xfer_mask); +extern unsigned int ata_id_xfermask(const u16 *id); extern void ata_noop_dev_select(struct ata_port *ap, unsigned int device); extern void ata_std_dev_select(struct ata_port *ap, unsigned int device); extern u8 ata_check_status(struct ata_port *ap); @@ -920,6 +929,7 @@ extern int ata_cable_unknown(struct ata_port *ap); */ extern unsigned int ata_pio_need_iordy(const struct ata_device *); +extern const struct ata_timing *ata_timing_find_mode(u8 xfer_mode); extern int ata_timing_compute(struct ata_device *, unsigned short, struct ata_timing *, int, int); extern void ata_timing_merge(const struct ata_timing *, |