diff options
Diffstat (limited to 'include/linux/ata.h')
| -rw-r--r-- | include/linux/ata.h | 127 |
1 files changed, 109 insertions, 18 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h index 5c4e54a2a8d..78bbacaed8c 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -190,6 +190,8 @@ enum { ATA_CMD_READ_LOG_EXT = 0x2f, ATA_CMD_PMP_READ = 0xE4, ATA_CMD_PMP_WRITE = 0xE8, + ATA_CMD_CONF_OVERLAY = 0xB1, + ATA_CMD_SEC_FREEZE_LOCK = 0xF5, /* READ_LOG_EXT pages */ ATA_LOG_SATA_NCQ = 0x10, @@ -239,6 +241,19 @@ enum { SATA_AN = 0x05, /* Asynchronous Notification */ SATA_DIPM = 0x03, /* Device Initiated Power Management */ + /* feature values for SET_MAX */ + ATA_SET_MAX_ADDR = 0x00, + ATA_SET_MAX_PASSWD = 0x01, + ATA_SET_MAX_LOCK = 0x02, + ATA_SET_MAX_UNLOCK = 0x03, + ATA_SET_MAX_FREEZE_LOCK = 0x04, + + /* feature values for DEVICE CONFIGURATION OVERLAY */ + ATA_DCO_RESTORE = 0xC0, + ATA_DCO_FREEZE_LOCK = 0xC1, + ATA_DCO_IDENTIFY = 0xC2, + ATA_DCO_SET = 0xC3, + /* ATAPI stuff */ ATAPI_PKT_DMA = (1 << 0), ATAPI_DMADIR = (1 << 2), /* ATAPI data dir: @@ -271,9 +286,10 @@ enum { ATA_CBL_NONE = 0, ATA_CBL_PATA40 = 1, ATA_CBL_PATA80 = 2, - ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ - ATA_CBL_PATA_UNK = 4, - ATA_CBL_SATA = 5, + ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */ + ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */ + ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */ + ATA_CBL_SATA = 6, /* SATA Status and Control Registers */ SCR_STATUS = 0, @@ -309,6 +325,13 @@ enum { ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ + + /* protocol flags */ + ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ + ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ + ATA_PROT_FLAG_DATA = ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA, + ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ + ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ }; enum ata_tf_protocols { @@ -318,9 +341,9 @@ enum ata_tf_protocols { ATA_PROT_PIO, /* PIO data xfer */ ATA_PROT_DMA, /* DMA */ ATA_PROT_NCQ, /* NCQ */ - ATA_PROT_ATAPI, /* packet command, PIO data xfer*/ - ATA_PROT_ATAPI_NODATA, /* packet command, no data */ - ATA_PROT_ATAPI_DMA, /* packet command with special DMA sauce */ + ATAPI_PROT_NODATA, /* packet command, no data */ + ATAPI_PROT_PIO, /* packet command, PIO data xfer*/ + ATAPI_PROT_DMA, /* packet command with special DMA sauce */ }; enum ata_ioctls { @@ -331,8 +354,8 @@ enum ata_ioctls { /* core structures */ struct ata_prd { - u32 addr; - u32 flags_len; + __le32 addr; + __le32 flags_len; }; struct ata_taskfile { @@ -358,13 +381,69 @@ struct ata_taskfile { u8 command; /* IO operation */ }; +/* + * protocol tests + */ +static inline unsigned int ata_prot_flags(u8 prot) +{ + switch (prot) { + case ATA_PROT_NODATA: + return 0; + case ATA_PROT_PIO: + return ATA_PROT_FLAG_PIO; + case ATA_PROT_DMA: + return ATA_PROT_FLAG_DMA; + case ATA_PROT_NCQ: + return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ; + case ATAPI_PROT_NODATA: + return ATA_PROT_FLAG_ATAPI; + case ATAPI_PROT_PIO: + return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO; + case ATAPI_PROT_DMA: + return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA; + } + return 0; +} + +static inline int ata_is_atapi(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_ATAPI; +} + +static inline int ata_is_nodata(u8 prot) +{ + return !(ata_prot_flags(prot) & ATA_PROT_FLAG_DATA); +} + +static inline int ata_is_pio(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_PIO; +} + +static inline int ata_is_dma(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_DMA; +} + +static inline int ata_is_ncq(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_NCQ; +} + +static inline int ata_is_data(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_DATA; +} + +/* + * 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_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)[48] & (1 << 0)) #define ata_id_has_atapi_AN(id) \ ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \ ((id)[78] & (1 << 5)) ) @@ -400,6 +479,7 @@ static inline bool ata_id_has_dipm(const u16 *id) return val & (1 << 3); } + static inline int ata_id_has_fua(const u16 *id) { if ((id[84] & 0xC000) != 0x4000) @@ -504,6 +584,26 @@ static inline int ata_id_is_sata(const u16 *id) return ata_id_major_version(id) >= 5 && id[93] == 0; } +static inline int ata_id_has_tpm(const u16 *id) +{ + /* The TPM bits are only valid on ATA8 */ + if (ata_id_major_version(id) < 8) + return 0; + if ((id[48] & 0xC000) != 0x4000) + return 0; + return id[48] & (1 << 0); +} + +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)) + return 1; + return 0; +} + static inline int ata_id_current_chs_valid(const u16 *id) { /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command @@ -539,8 +639,6 @@ static inline int ata_drive_40wire(const u16 *dev_id) static inline int ata_drive_40wire_relaxed(const u16 *dev_id) { - if (ata_id_is_sata(dev_id)) - return 0; /* SATA */ if ((dev_id[93] & 0x2000) == 0x2000) return 0; /* 80 wire */ return 1; @@ -561,13 +659,6 @@ static inline int atapi_command_packet_set(const u16 *dev_id) return (dev_id[0] >> 8) & 0x1f; } -static inline int is_atapi_taskfile(const struct ata_taskfile *tf) -{ - return (tf->protocol == ATA_PROT_ATAPI) || - (tf->protocol == ATA_PROT_ATAPI_NODATA) || - (tf->protocol == ATA_PROT_ATAPI_DMA); -} - static inline int is_multi_taskfile(struct ata_taskfile *tf) { return (tf->command == ATA_CMD_READ_MULTI) || |