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Diffstat (limited to 'include/linux/ata.h')
-rw-r--r--include/linux/ata.h116
1 files changed, 104 insertions, 12 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index c043c1ccf1c5..a4f373f8b798 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:
@@ -281,6 +287,15 @@ enum {
SERR_PROTOCOL = (1 << 10), /* protocol violation */
SERR_INTERNAL = (1 << 11), /* host internal error */
SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */
+ SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */
+ SERR_COMM_WAKE = (1 << 18), /* Comm wake */
+ SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */
+ SERR_DISPARITY = (1 << 20), /* Disparity */
+ SERR_CRC = (1 << 21), /* CRC error */
+ SERR_HANDSHAKE = (1 << 22), /* Handshake error */
+ SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */
+ SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */
+ SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */
SERR_DEV_XCHG = (1 << 26), /* device exchanged */
/* struct ata_taskfile flags */
@@ -341,24 +356,17 @@ struct ata_taskfile {
};
#define ata_id_is_ata(id) (((id)[0] & (1 << 15)) == 0)
-#define ata_id_rahead_enabled(id) ((id)[85] & (1 << 6))
-#define ata_id_wcache_enabled(id) ((id)[85] & (1 << 5))
-#define ata_id_hpa_enabled(id) ((id)[85] & (1 << 10))
-#define ata_id_has_fua(id) ((id)[84] & (1 << 6))
-#define ata_id_has_flush(id) ((id)[83] & (1 << 12))
-#define ata_id_has_flush_ext(id) ((id)[83] & (1 << 13))
-#define ata_id_has_lba48(id) ((id)[83] & (1 << 10))
-#define ata_id_has_hpa(id) ((id)[82] & (1 << 10))
-#define ata_id_has_wcache(id) ((id)[82] & (1 << 5))
-#define ata_id_has_pm(id) ((id)[82] & (1 << 3))
#define ata_id_has_lba(id) ((id)[49] & (1 << 9))
#define ata_id_has_dma(id) ((id)[49] & (1 << 8))
#define ata_id_has_ncq(id) ((id)[76] & (1 << 8))
#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_dword_io(id) ((id)[48] & (1 << 0))
+#define ata_id_has_atapi_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 << 9))
+#define ata_id_has_iordy(id) ((id)[49] & (1 << 11))
#define ata_id_u32(id,n) \
(((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))
#define ata_id_u64(id,n) \
@@ -369,6 +377,90 @@ struct ata_taskfile {
#define ata_id_cdb_intr(id) (((id)[0] & 0x60) == 0x20)
+static inline int ata_id_has_fua(const u16 *id)
+{
+ if ((id[84] & 0xC000) != 0x4000)
+ return 0;
+ return id[84] & (1 << 6);
+}
+
+static inline int ata_id_has_flush(const u16 *id)
+{
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ return id[83] & (1 << 12);
+}
+
+static inline int ata_id_has_flush_ext(const u16 *id)
+{
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ return id[83] & (1 << 13);
+}
+
+static inline int ata_id_has_lba48(const u16 *id)
+{
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ return id[83] & (1 << 10);
+}
+
+static inline int ata_id_hpa_enabled(const u16 *id)
+{
+ /* Yes children, word 83 valid bits cover word 82 data */
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ /* And 87 covers 85-87 */
+ if ((id[87] & 0xC000) != 0x4000)
+ return 0;
+ /* Check command sets enabled as well as supported */
+ if ((id[85] & ( 1 << 10)) == 0)
+ return 0;
+ return id[82] & (1 << 10);
+}
+
+static inline int ata_id_has_wcache(const u16 *id)
+{
+ /* Yes children, word 83 valid bits cover word 82 data */
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ return id[82] & (1 << 5);
+}
+
+static inline int ata_id_has_pm(const u16 *id)
+{
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ return id[82] & (1 << 3);
+}
+
+static inline int ata_id_rahead_enabled(const u16 *id)
+{
+ if ((id[87] & 0xC000) != 0x4000)
+ return 0;
+ return id[85] & (1 << 6);
+}
+
+static inline int ata_id_wcache_enabled(const u16 *id)
+{
+ if ((id[87] & 0xC000) != 0x4000)
+ return 0;
+ return id[85] & (1 << 5);
+}
+
+/**
+ * ata_id_major_version - get ATA level of drive
+ * @id: Identify data
+ *
+ * Caveats:
+ * ATA-1 considers identify optional
+ * ATA-2 introduces mandatory identify
+ * ATA-3 introduces word 80 and accurate reporting
+ *
+ * The practical impact of this is that ata_id_major_version cannot
+ * reliably report on drives below ATA3.
+ */
+
static inline unsigned int ata_id_major_version(const u16 *id)
{
unsigned int mver;