/*
- Copyright 2003-2004 Red Hat, Inc. All rights reserved.
- Copyright 2003-2004 Jeff Garzik
-
- The contents of this file are subject to the Open
- Software License version 1.1 that can be found at
- http://www.opensource.org/licenses/osl-1.1.txt and is included herein
- by reference.
-
- Alternatively, the contents of this file may be used under the terms
- of the GNU General Public License version 2 (the "GPL") as distributed
- in the kernel source COPYING file, in which case the provisions of
- the GPL are applicable instead of the above. If you wish to allow
- the use of your version of this file only under the terms of the
- GPL and not to allow others to use your version of this file under
- the OSL, indicate your decision by deleting the provisions above and
- replace them with the notice and other provisions required by the GPL.
- If you do not delete the provisions above, a recipient may use your
- version of this file under either the OSL or the GPL.
-
+ * Copyright 2003-2004 Red Hat, Inc. All rights reserved.
+ * Copyright 2003-2004 Jeff Garzik
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * libata documentation is available via 'make {ps|pdf}docs',
+ * as Documentation/DocBook/libata.*
+ *
+ * Hardware documentation available from http://www.t13.org/
+ *
*/
#ifndef __LINUX_ATA_H__
#define __LINUX_ATA_H__
+#include <linux/types.h>
+
/* defines only for the constants which don't work well as enums */
#define ATA_DMA_BOUNDARY 0xffffUL
#define ATA_DMA_MASK 0xffffffffULL
ATA_MAX_DEVICES = 2, /* per bus/port */
ATA_MAX_PRD = 256, /* we could make these 256/256 */
ATA_SECT_SIZE = 512,
- ATA_SECT_SIZE_MASK = (ATA_SECT_SIZE - 1),
- ATA_SECT_DWORDS = ATA_SECT_SIZE / sizeof(u32),
+ ATA_MAX_SECTORS = 256,
+ ATA_MAX_SECTORS_LBA48 = 65535,/* TODO: 65536? */
ATA_ID_WORDS = 256,
- ATA_ID_PROD_OFS = 27,
ATA_ID_SERNO_OFS = 10,
- ATA_ID_MAJOR_VER = 80,
+ ATA_ID_FW_REV_OFS = 23,
+ ATA_ID_PROD_OFS = 27,
+ ATA_ID_OLD_PIO_MODES = 51,
+ ATA_ID_FIELD_VALID = 53,
+ ATA_ID_MWDMA_MODES = 63,
ATA_ID_PIO_MODES = 64,
+ ATA_ID_EIDE_DMA_MIN = 65,
+ ATA_ID_EIDE_PIO = 67,
+ ATA_ID_EIDE_PIO_IORDY = 68,
ATA_ID_UDMA_MODES = 88,
+ ATA_ID_MAJOR_VER = 80,
ATA_ID_PIO4 = (1 << 1),
ATA_PCI_CTL_OFS = 2,
ATA_NIEN = (1 << 1), /* disable-irq flag */
ATA_LBA = (1 << 6), /* LBA28 selector */
ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */
- ATA_BUSY = (1 << 7), /* BSY status bit */
ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */
ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */
+ ATA_BUSY = (1 << 7), /* BSY status bit */
+ ATA_DRDY = (1 << 6), /* device ready */
+ ATA_DF = (1 << 5), /* device fault */
ATA_DRQ = (1 << 3), /* data request i/o */
ATA_ERR = (1 << 0), /* have an error */
ATA_SRST = (1 << 2), /* software reset */
+ ATA_ICRC = (1 << 7), /* interface CRC error */
+ ATA_UNC = (1 << 6), /* uncorrectable media error */
+ ATA_IDNF = (1 << 4), /* ID not found */
ATA_ABORTED = (1 << 2), /* command aborted */
/* ATA command block registers */
ATA_REG_IRQ = ATA_REG_NSECT,
/* ATA device commands */
+ ATA_CMD_CHK_POWER = 0xE5, /* check power mode */
+ ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */
+ ATA_CMD_IDLE = 0xE3, /* place in idle power mode */
ATA_CMD_EDD = 0x90, /* execute device diagnostic */
+ ATA_CMD_FLUSH = 0xE7,
+ ATA_CMD_FLUSH_EXT = 0xEA,
ATA_CMD_ID_ATA = 0xEC,
ATA_CMD_ID_ATAPI = 0xA1,
ATA_CMD_READ = 0xC8,
ATA_CMD_READ_EXT = 0x25,
ATA_CMD_WRITE = 0xCA,
ATA_CMD_WRITE_EXT = 0x35,
+ ATA_CMD_WRITE_FUA_EXT = 0x3D,
+ ATA_CMD_FPDMA_READ = 0x60,
+ ATA_CMD_FPDMA_WRITE = 0x61,
ATA_CMD_PIO_READ = 0x20,
ATA_CMD_PIO_READ_EXT = 0x24,
ATA_CMD_PIO_WRITE = 0x30,
ATA_CMD_PIO_WRITE_EXT = 0x34,
+ ATA_CMD_READ_MULTI = 0xC4,
+ ATA_CMD_READ_MULTI_EXT = 0x29,
+ ATA_CMD_WRITE_MULTI = 0xC5,
+ ATA_CMD_WRITE_MULTI_EXT = 0x39,
+ ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE,
ATA_CMD_SET_FEATURES = 0xEF,
ATA_CMD_PACKET = 0xA0,
+ ATA_CMD_VERIFY = 0x40,
+ ATA_CMD_VERIFY_EXT = 0x42,
+ ATA_CMD_STANDBYNOW1 = 0xE0,
+ ATA_CMD_IDLEIMMEDIATE = 0xE1,
+ ATA_CMD_INIT_DEV_PARAMS = 0x91,
+ ATA_CMD_READ_NATIVE_MAX = 0xF8,
+ ATA_CMD_READ_NATIVE_MAX_EXT = 0x27,
+ ATA_CMD_READ_LOG_EXT = 0x2f,
+
+ /* READ_LOG_EXT pages */
+ ATA_LOG_SATA_NCQ = 0x10,
/* SETFEATURES stuff */
SETFEATURES_XFER = 0x03,
XFER_UDMA_2 = 0x42,
XFER_UDMA_1 = 0x41,
XFER_UDMA_0 = 0x40,
+ XFER_MW_DMA_4 = 0x24, /* CFA only */
+ XFER_MW_DMA_3 = 0x23, /* CFA only */
+ XFER_MW_DMA_2 = 0x22,
+ XFER_MW_DMA_1 = 0x21,
+ XFER_MW_DMA_0 = 0x20,
+ XFER_SW_DMA_2 = 0x12,
+ XFER_SW_DMA_1 = 0x11,
+ XFER_SW_DMA_0 = 0x10,
+ XFER_PIO_6 = 0x0E, /* CFA only */
+ XFER_PIO_5 = 0x0D, /* CFA only */
XFER_PIO_4 = 0x0C,
XFER_PIO_3 = 0x0B,
+ XFER_PIO_2 = 0x0A,
+ XFER_PIO_1 = 0x09,
+ XFER_PIO_0 = 0x08,
+ XFER_PIO_SLOW = 0x00,
+
+ SETFEATURES_WC_ON = 0x02, /* Enable write cache */
+ SETFEATURES_WC_OFF = 0x82, /* Disable write cache */
/* ATAPI stuff */
ATAPI_PKT_DMA = (1 << 0),
+ ATAPI_DMADIR = (1 << 2), /* ATAPI data dir:
+ 0=to device, 1=to host */
+ ATAPI_CDB_LEN = 16,
/* cable types */
ATA_CBL_NONE = 0,
ATA_CBL_PATA40 = 1,
ATA_CBL_PATA80 = 2,
- ATA_CBL_PATA_UNK = 3,
- ATA_CBL_SATA = 4,
+ ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */
+ ATA_CBL_PATA_UNK = 4,
+ ATA_CBL_SATA = 5,
/* SATA Status and Control Registers */
SCR_STATUS = 0,
SCR_ACTIVE = 3,
SCR_NOTIFICATION = 4,
+ /* SError bits */
+ SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */
+ SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */
+ SERR_DATA = (1 << 8), /* unrecovered data error */
+ SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */
+ SERR_PROTOCOL = (1 << 10), /* protocol violation */
+ SERR_INTERNAL = (1 << 11), /* host internal error */
+ SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */
+ SERR_DEV_XCHG = (1 << 26), /* device exchanged */
+
/* struct ata_taskfile flags */
ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */
ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */
ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */
ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */
+ 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 */
};
enum ata_tf_protocols {
ATA_PROT_UNKNOWN, /* unknown/invalid */
ATA_PROT_NODATA, /* no data */
ATA_PROT_PIO, /* PIO single sector */
- ATA_PROT_PIO_MULT, /* PIO multiple sector */
ATA_PROT_DMA, /* DMA */
- ATA_PROT_ATAPI, /* packet command */
+ 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 */
};
+enum ata_ioctls {
+ ATA_IOC_GET_IO32 = 0x309,
+ ATA_IOC_SET_IO32 = 0x324,
+};
+
/* core structures */
struct ata_prd {
u32 addr;
u32 flags_len;
-} __attribute__((packed));
+};
struct ata_taskfile {
unsigned long flags; /* ATA_TFLAG_xxx */
u8 command; /* IO operation */
};
-#define ata_id_is_ata(dev) (((dev)->id[0] & (1 << 15)) == 0)
-#define ata_id_has_lba48(dev) ((dev)->id[83] & (1 << 10))
-#define ata_id_has_lba(dev) ((dev)->id[49] & (1 << 8))
-#define ata_id_has_dma(dev) ((dev)->id[49] & (1 << 9))
-#define ata_id_u32(dev,n) \
- (((u32) (dev)->id[(n) + 1] << 16) | ((u32) (dev)->id[(n)]))
-#define ata_id_u64(dev,n) \
- ( ((u64) dev->id[(n) + 3] << 48) | \
- ((u64) dev->id[(n) + 2] << 32) | \
- ((u64) dev->id[(n) + 1] << 16) | \
- ((u64) dev->id[(n) + 0]) )
+#define ata_id_is_ata(id) (((id)[0] & (1 << 15)) == 0)
+#define ata_id_is_sata(id) ((id)[93] == 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_u32(id,n) \
+ (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))
+#define ata_id_u64(id,n) \
+ ( ((u64) (id)[(n) + 3] << 48) | \
+ ((u64) (id)[(n) + 2] << 32) | \
+ ((u64) (id)[(n) + 1] << 16) | \
+ ((u64) (id)[(n) + 0]) )
+
+#define ata_id_cdb_intr(id) (((id)[0] & 0x60) == 0x20)
+
+static inline unsigned int ata_id_major_version(const u16 *id)
+{
+ unsigned int mver;
+
+ if (id[ATA_ID_MAJOR_VER] == 0xFFFF)
+ return 0;
+
+ for (mver = 14; mver >= 1; mver--)
+ if (id[ATA_ID_MAJOR_VER] & (1 << mver))
+ break;
+ return mver;
+}
+
+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 */
+}
+
+static inline int ata_id_is_cfa(const u16 *id)
+{
+ u16 v = id[0];
+ if (v == 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)))
+ return 1;
+ return 0;
+}
+
+static inline int ata_drive_40wire(const u16 *dev_id)
+{
+ if (ata_id_major_version(dev_id) >= 5 && ata_id_is_sata(dev_id))
+ return 0; /* SATA */
+ if (dev_id[93] & 0x4000)
+ return 0; /* 80 wire */
+ return 1;
+}
+
+static inline int atapi_cdb_len(const u16 *dev_id)
+{
+ u16 tmp = dev_id[0] & 0x3;
+ switch (tmp) {
+ case 0: return 12;
+ case 1: return 16;
+ default: return -1;
+ }
+}
+
+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) ||
+ (tf->command == ATA_CMD_WRITE_MULTI) ||
+ (tf->command == ATA_CMD_READ_MULTI_EXT) ||
+ (tf->command == ATA_CMD_WRITE_MULTI_EXT) ||
+ (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT);
+}
+
+static inline int ata_ok(u8 status)
+{
+ return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR))
+ == ATA_DRDY);
+}
+
+static inline int lba_28_ok(u64 block, u32 n_block)
+{
+ /* check the ending block number */
+ return ((block + n_block - 1) < ((u64)1 << 28)) && (n_block <= 256);
+}
+
+static inline int lba_48_ok(u64 block, u32 n_block)
+{
+ /* check the ending block number */
+ return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536);
+}
#endif /* __LINUX_ATA_H__ */
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