diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-29 12:12:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-29 12:12:34 -0700 |
| commit | 3529a233421fc43fa7bfdf7a4317daf28348a23d (patch) | |
| tree | 520558ffb70e4f4743495ad7a62d4c775c0c1ea3 /include/linux/ata.h | |
| parent | 00cda56d39f013cce60f44f1e3da19b87eba5d85 (diff) | |
| parent | 31556594f913fa81d008cecfe46d7211c919a853 (diff) | |
Merge branch 'alpm' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'alpm' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[libata] AHCI: add hw link power management support
[libata] Link power management infrastructure
Diffstat (limited to 'include/linux/ata.h')
| -rw-r--r-- | include/linux/ata.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h index e21c002c3a4..128dc7ad490 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -236,6 +236,7 @@ enum { /* SETFEATURE Sector counts for SATA features */ SATA_AN = 0x05, /* Asynchronous Notification */ + SATA_DIPM = 0x03, /* Device Initiated Power Management */ /* ATAPI stuff */ ATAPI_PKT_DMA = (1 << 0), @@ -378,6 +379,26 @@ struct ata_taskfile { #define ata_id_cdb_intr(id) (((id)[0] & 0x60) == 0x20) +static inline bool ata_id_has_hipm(const u16 *id) +{ + u16 val = id[76]; + + if (val == 0 || val == 0xffff) + return false; + + return val & (1 << 9); +} + +static inline bool ata_id_has_dipm(const u16 *id) +{ + u16 val = id[78]; + + if (val == 0 || val == 0xffff) + return false; + + return val & (1 << 3); +} + static inline int ata_id_has_fua(const u16 *id) { if ((id[84] & 0xC000) != 0x4000) |