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| author | Jeff Garzik <jgarzik@pobox.com> | 2006-02-13 00:13:48 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-02-13 00:13:48 -0500 |
| commit | 3875e1945b55f0eb83fe7359614a801eeb716761 (patch) | |
| tree | 4567aef3fb7d081cb7d7b7c9bcd94e0e44d39557 /include/linux/ata.h | |
| parent | 587005de144acd3007b8e7f2a2a7c6add157c155 (diff) | |
| parent | f1b318793dcd2d9ff6b5ac06e7762098fa079cee (diff) | |
Merge branch 'upstream'
Diffstat (limited to 'include/linux/ata.h')
| -rw-r--r-- | include/linux/ata.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h index 8e88efc565be..469952366ed4 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -270,6 +270,16 @@ struct ata_taskfile { #define ata_id_cdb_intr(id) (((id)[0] & 0x60) == 0x20) +static inline unsigned int ata_id_major_version(const u16 *id) +{ + unsigned int mver; + + for (mver = 14; mver >= 1; mver--) + if (id[ATA_ID_MAJOR_VER] & (1 << mver)) + break; + return mver; +} + static inline int ata_id_current_chs_valid(const u16 *id) { /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command |