diff options
Diffstat (limited to 'freebsd/sys/sys/ata.h')
| -rw-r--r-- | freebsd/sys/sys/ata.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/freebsd/sys/sys/ata.h b/freebsd/sys/sys/ata.h index cacb1ea0..efa5b246 100644 --- a/freebsd/sys/sys/ata.h +++ b/freebsd/sys/sys/ata.h @@ -135,6 +135,7 @@ struct ata_params { #define ATA_SUPPORT_AUTOACTIVATE 0x0004 #define ATA_SUPPORT_IFPWRMNGT 0x0008 #define ATA_SUPPORT_INORDERDATA 0x0010 +#define ATA_SUPPORT_ASYNCNOTIF 0x0020 #define ATA_SUPPORT_SOFTSETPRESERVE 0x0040 /*79*/ u_int16_t sataenabled; #define ATA_ENABLED_DAPST 0x0080 @@ -260,6 +261,20 @@ struct ata_params { /*255*/ u_int16_t integrity; } __packed; +/* + * ATA Device Register + * + * bit 7 Obsolete (was 1 in early ATA specs) + * bit 6 Sets LBA/CHS mode. 1=LBA, 0=CHS + * bit 5 Obsolete (was 1 in early ATA specs) + * bit 4 1 = Slave Drive, 0 = Master Drive + * bit 3-0 In LBA mode, 27-24 of address. In CHS mode, head number +*/ + +#define ATA_DEV_MASTER 0x00 +#define ATA_DEV_SLAVE 0x10 +#define ATA_DEV_LBA 0x40 + /* ATA transfer modes */ #define ATA_MODE_MASK 0x0f |