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-rw-r--r--include/linux/ata.h122
1 files changed, 76 insertions, 46 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 1c622e2b050..03fff6239b3 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -46,18 +46,48 @@ enum {
ATA_MAX_SECTORS_TAPE = 65535,
ATA_ID_WORDS = 256,
+ ATA_ID_CONFIG = 0,
+ ATA_ID_CYLS = 1,
+ ATA_ID_HEADS = 3,
+ ATA_ID_SECTORS = 6,
ATA_ID_SERNO = 10,
+ ATA_ID_BUF_SIZE = 21,
ATA_ID_FW_REV = 23,
ATA_ID_PROD = 27,
+ ATA_ID_MAX_MULTSECT = 47,
+ ATA_ID_DWORD_IO = 48,
+ ATA_ID_CAPABILITY = 49,
ATA_ID_OLD_PIO_MODES = 51,
+ ATA_ID_OLD_DMA_MODES = 52,
ATA_ID_FIELD_VALID = 53,
+ ATA_ID_CUR_CYLS = 54,
+ ATA_ID_CUR_HEADS = 55,
+ ATA_ID_CUR_SECTORS = 56,
+ ATA_ID_MULTSECT = 59,
+ ATA_ID_LBA_CAPACITY = 60,
+ ATA_ID_SWDMA_MODES = 62,
ATA_ID_MWDMA_MODES = 63,
ATA_ID_PIO_MODES = 64,
ATA_ID_EIDE_DMA_MIN = 65,
+ ATA_ID_EIDE_DMA_TIME = 66,
ATA_ID_EIDE_PIO = 67,
ATA_ID_EIDE_PIO_IORDY = 68,
- ATA_ID_UDMA_MODES = 88,
+ ATA_ID_QUEUE_DEPTH = 75,
ATA_ID_MAJOR_VER = 80,
+ ATA_ID_COMMAND_SET_1 = 82,
+ ATA_ID_COMMAND_SET_2 = 83,
+ ATA_ID_CFSSE = 84,
+ ATA_ID_CFS_ENABLE_1 = 85,
+ ATA_ID_CFS_ENABLE_2 = 86,
+ ATA_ID_CSF_DEFAULT = 87,
+ ATA_ID_UDMA_MODES = 88,
+ ATA_ID_HW_CONFIG = 93,
+ ATA_ID_SPG = 98,
+ ATA_ID_LBA_CAPACITY_2 = 100,
+ ATA_ID_LAST_LUN = 126,
+ ATA_ID_DLF = 128,
+ ATA_ID_CSFO = 129,
+ ATA_ID_CFA_POWER = 160,
ATA_ID_PIO4 = (1 << 1),
ATA_ID_SERNO_LEN = 20,
@@ -438,17 +468,17 @@ static inline int ata_is_data(u8 prot)
/*
* id tests
*/
-#define ata_id_is_ata(id) (((id)[0] & (1 << 15)) == 0)
-#define ata_id_has_lba(id) ((id)[49] & (1 << 9))
-#define ata_id_has_dma(id) ((id)[49] & (1 << 8))
+#define ata_id_is_ata(id) (((id)[ATA_ID_CONFIG] & (1 << 15)) == 0)
+#define ata_id_has_lba(id) ((id)[ATA_ID_CAPABILITY] & (1 << 9))
+#define ata_id_has_dma(id) ((id)[ATA_ID_CAPABILITY] & (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_queue_depth(id) (((id)[ATA_ID_QUEUE_DEPTH] & 0x1f) + 1)
+#define ata_id_removeable(id) ((id)[ATA_ID_CONFIG] & (1 << 7))
#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 << 11))
+#define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
+#define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
#define ata_id_u32(id,n) \
(((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))
#define ata_id_u64(id,n) \
@@ -457,7 +487,7 @@ static inline int ata_is_data(u8 prot)
((u64) (id)[(n) + 1] << 16) | \
((u64) (id)[(n) + 0]) )
-#define ata_id_cdb_intr(id) (((id)[0] & 0x60) == 0x20)
+#define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
static inline bool ata_id_has_hipm(const u16 *id)
{
@@ -482,75 +512,75 @@ static inline bool ata_id_has_dipm(const u16 *id)
static inline int ata_id_has_fua(const u16 *id)
{
- if ((id[84] & 0xC000) != 0x4000)
+ if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000)
return 0;
- return id[84] & (1 << 6);
+ return id[ATA_ID_CFSSE] & (1 << 6);
}
static inline int ata_id_has_flush(const u16 *id)
{
- if ((id[83] & 0xC000) != 0x4000)
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
return 0;
- return id[83] & (1 << 12);
+ return id[ATA_ID_COMMAND_SET_2] & (1 << 12);
}
static inline int ata_id_has_flush_ext(const u16 *id)
{
- if ((id[83] & 0xC000) != 0x4000)
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
return 0;
- return id[83] & (1 << 13);
+ return id[ATA_ID_COMMAND_SET_2] & (1 << 13);
}
static inline int ata_id_has_lba48(const u16 *id)
{
- if ((id[83] & 0xC000) != 0x4000)
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
return 0;
- if (!ata_id_u64(id, 100))
+ if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2))
return 0;
- return id[83] & (1 << 10);
+ return id[ATA_ID_COMMAND_SET_2] & (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)
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
return 0;
/* And 87 covers 85-87 */
- if ((id[87] & 0xC000) != 0x4000)
+ if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
return 0;
/* Check command sets enabled as well as supported */
- if ((id[85] & ( 1 << 10)) == 0)
+ if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0)
return 0;
- return id[82] & (1 << 10);
+ return id[ATA_ID_COMMAND_SET_1] & (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)
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
return 0;
- return id[82] & (1 << 5);
+ return id[ATA_ID_COMMAND_SET_1] & (1 << 5);
}
static inline int ata_id_has_pm(const u16 *id)
{
- if ((id[83] & 0xC000) != 0x4000)
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
return 0;
- return id[82] & (1 << 3);
+ return id[ATA_ID_COMMAND_SET_1] & (1 << 3);
}
static inline int ata_id_rahead_enabled(const u16 *id)
{
- if ((id[87] & 0xC000) != 0x4000)
+ if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
return 0;
- return id[85] & (1 << 6);
+ return id[ATA_ID_CFS_ENABLE_1] & (1 << 6);
}
static inline int ata_id_wcache_enabled(const u16 *id)
{
- if ((id[87] & 0xC000) != 0x4000)
+ if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
return 0;
- return id[85] & (1 << 5);
+ return id[ATA_ID_CFS_ENABLE_1] & (1 << 5);
}
/**
@@ -581,7 +611,7 @@ static inline unsigned int ata_id_major_version(const u16 *id)
static inline int ata_id_is_sata(const u16 *id)
{
- return ata_id_major_version(id) >= 5 && id[93] == 0;
+ return ata_id_major_version(id) >= 5 && id[ATA_ID_HW_CONFIG] == 0;
}
static inline int ata_id_has_tpm(const u16 *id)
@@ -599,7 +629,7 @@ static inline int ata_id_has_dword_io(const u16 *id)
/* ATA 8 reuses this flag for "trusted" computing */
if (ata_id_major_version(id) > 7)
return 0;
- if (id[48] & (1 << 0))
+ if (id[ATA_ID_DWORD_IO] & (1 << 0))
return 1;
return 0;
}
@@ -608,22 +638,22 @@ static inline int ata_id_current_chs_valid(const u16 *id)
{
/* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
has not been issued to the device then the values of
- id[54] to id[56] are vendor specific. */
- return (id[53] & 0x01) && /* Current translation valid */
- id[54] && /* cylinders in current translation */
- id[55] && /* heads in current translation */
- id[55] <= 16 &&
- id[56]; /* sectors in current translation */
+ id[ATA_ID_CUR_CYLS] to id[ATA_ID_CUR_SECTORS] are vendor specific. */
+ return (id[ATA_ID_FIELD_VALID] & 1) && /* Current translation valid */
+ id[ATA_ID_CUR_CYLS] && /* cylinders in current translation */
+ id[ATA_ID_CUR_HEADS] && /* heads in current translation */
+ id[ATA_ID_CUR_HEADS] <= 16 &&
+ id[ATA_ID_CUR_SECTORS]; /* sectors in current translation */
}
static inline int ata_id_is_cfa(const u16 *id)
{
- u16 v = id[0];
- if (v == 0x848A) /* Standard CF */
+ if (id[ATA_ID_CONFIG] == 0x848A) /* Standard CF */
return 1;
/* Could be CF hiding as standard ATA */
- if (ata_id_major_version(id) >= 3 && id[82] != 0xFFFF &&
- (id[82] & ( 1 << 2)))
+ if (ata_id_major_version(id) >= 3 &&
+ id[ATA_ID_COMMAND_SET_1] != 0xFFFF &&
+ (id[ATA_ID_COMMAND_SET_1] & (1 << 2)))
return 1;
return 0;
}
@@ -632,21 +662,21 @@ static inline int ata_drive_40wire(const u16 *dev_id)
{
if (ata_id_is_sata(dev_id))
return 0; /* SATA */
- if ((dev_id[93] & 0xE000) == 0x6000)
+ if ((dev_id[ATA_ID_HW_CONFIG] & 0xE000) == 0x6000)
return 0; /* 80 wire */
return 1;
}
static inline int ata_drive_40wire_relaxed(const u16 *dev_id)
{
- if ((dev_id[93] & 0x2000) == 0x2000)
+ if ((dev_id[ATA_ID_HW_CONFIG] & 0x2000) == 0x2000)
return 0; /* 80 wire */
return 1;
}
static inline int atapi_cdb_len(const u16 *dev_id)
{
- u16 tmp = dev_id[0] & 0x3;
+ u16 tmp = dev_id[ATA_ID_CONFIG] & 0x3;
switch (tmp) {
case 0: return 12;
case 1: return 16;
@@ -656,7 +686,7 @@ static inline int atapi_cdb_len(const u16 *dev_id)
static inline int atapi_command_packet_set(const u16 *dev_id)
{
- return (dev_id[0] >> 8) & 0x1f;
+ return (dev_id[ATA_ID_CONFIG] >> 8) & 0x1f;
}
static inline int atapi_id_dmadir(const u16 *dev_id)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 13:01:08 +0000