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authorKristen Carlson Accardi <kristen.c.accardi@intel.com>2007-08-15 03:57:11 -0400
committerJeff Garzik <jeff@garzik.org>2007-10-12 14:55:33 -0400
commit9f45cbd3f0fc597530aaf85cad7fe52cd63f1fd8 (patch)
tree44f9f11250f7629e7091b1532489d7a6539f758a /include/linux/ata.h
parent05d1efffdc9bf84311bb1a3c2e3db55b544ca119 (diff)
downloadop-kernel-dev-9f45cbd3f0fc597530aaf85cad7fe52cd63f1fd8.zip
op-kernel-dev-9f45cbd3f0fc597530aaf85cad7fe52cd63f1fd8.tar.gz
[libata] check for SATA async notify support
Check to see if an ATAPI device supports Asynchronous Notification. If so, enable it, if the host controller supports AN. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include/linux/ata.h')
-rw-r--r--include/linux/ata.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 40c7af0..fba8e14 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -230,6 +230,12 @@ enum {
SETFEATURES_SPINUP = 0x07, /* Spin-up drive */
+ SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */
+ SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */
+
+ /* SETFEATURE Sector counts for SATA features */
+ SATA_AN = 0x05, /* Asynchronous Notification */
+
/* ATAPI stuff */
ATAPI_PKT_DMA = (1 << 0),
ATAPI_DMADIR = (1 << 2), /* ATAPI data dir:
@@ -357,6 +363,9 @@ struct ata_taskfile {
#define ata_id_queue_depth(id) (((id)[75] & 0x1f) + 1)
#define ata_id_removeable(id) ((id)[0] & (1 << 7))
#define ata_id_has_dword_io(id) ((id)[50] & (1 << 0))
+#define ata_id_has_AN(id) \
+ ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \
+ ((id)[78] & (1 << 5)) )
#define ata_id_iordy_disable(id) ((id)[49] & (1 << 10))
#define ata_id_has_iordy(id) ((id)[49] & (1 << 11))
#define ata_id_u32(id,n) \
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