/*
- 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__
ATA_SECT_SIZE = 512,
ATA_ID_WORDS = 256,
- ATA_ID_PROD_OFS = 27,
- ATA_ID_FW_REV_OFS = 23,
ATA_ID_SERNO_OFS = 10,
- ATA_ID_MAJOR_VER = 80,
- ATA_ID_PIO_MODES = 64,
+ 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 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_READ_EXT = 0x25,
ATA_CMD_WRITE = 0xCA,
ATA_CMD_WRITE_EXT = 0x35,
+ ATA_CMD_WRITE_FUA_EXT = 0x3D,
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,
/* SETFEATURES stuff */
SETFEATURES_XFER = 0x03,
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_4 = 0x0C,
XFER_PIO_3 = 0x0B,
XFER_PIO_2 = 0x0A,
XFER_PIO_1 = 0x09,
XFER_PIO_0 = 0x08,
- XFER_SW_DMA_2 = 0x12,
- XFER_SW_DMA_1 = 0x11,
- XFER_SW_DMA_0 = 0x10,
XFER_PIO_SLOW = 0x00,
/* ATAPI stuff */
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 */
};
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, PIO data xfer*/
ATA_PROT_ATAPI_NODATA, /* packet command, no data */
};
#define ata_id_is_ata(id) (((id)[0] & (1 << 15)) == 0)
+#define ata_id_is_cfa(id) ((id)[0] == 0x848A)
+#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_has_flush(id) ((id)[83] & (1 << 12))
+#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_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) + 1] << 16) | \
((u64) (id)[(n) + 0]) )
-static inline int atapi_cdb_len(u16 *dev_id)
+static inline unsigned int ata_id_major_version(const u16 *id)
+{
+ unsigned int mver;
+
+ 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 atapi_cdb_len(const u16 *dev_id)
{
u16 tmp = dev_id[0] & 0x3;
switch (tmp) {
}
}
-static inline int is_atapi_taskfile(struct ata_taskfile *tf)
+static inline int is_atapi_taskfile(const struct ata_taskfile *tf)
{
return (tf->protocol == ATA_PROT_ATAPI) ||
(tf->protocol == ATA_PROT_ATAPI_NODATA) ||
== 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__ */
git://git.onelab.eu / linux-2.6.git / blobdiff