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author | David S. Miller <davem@davemloft.net> | 2009-05-17 11:55:57 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2009-05-17 11:55:57 -0700 |
commit | 74392592bbf7e93ef383588e21aea0c1450d6f12 (patch) | |
tree | 086981f9ef51d57a34fbc5fde8095652877cf739 /include/linux/ata.h | |
parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6 (diff) | |
parent | Fix caller information for warn_slowpath_null (diff) | |
download | linux-dev-74392592bbf7e93ef383588e21aea0c1450d6f12.tar.xz linux-dev-74392592bbf7e93ef383588e21aea0c1450d6f12.zip |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'include/linux/ata.h')
-rw-r--r-- | include/linux/ata.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h index cb79b7a208e1..915da43edee1 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -730,6 +730,34 @@ static inline int ata_id_has_unload(const u16 *id) return 0; } +static inline int ata_id_form_factor(const u16 *id) +{ + u16 val = id[168]; + + if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) + return 0; + + val &= 0xf; + + if (val > 5) + return 0; + + return val; +} + +static inline int ata_id_rotation_rate(const u16 *id) +{ + u16 val = id[217]; + + if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff) + return 0; + + if (val > 1 && val < 0x401) + return 0; + + return val; +} + static inline int ata_id_has_trim(const u16 *id) { if (ata_id_major_version(id) >= 7 && |