Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 268 insertions, 0 deletions

diff --git a/include/linux/ata.h b/include/linux/ata.h
new file mode 100644
index 000000000000..f178894edd04
--- /dev/null
+++ b/include/linux/ata.h
@@ -0,0 +1,268 @@
+
+/*
+   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.
+
+ */
+
+#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
+
+enum {
+        /* various global constants */
+        ATA_MAX_DEVICES         = 2,    /* per bus/port */
+        ATA_MAX_PRD             = 256,  /* we could make these 256/256 */
+        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_MWDMA_MODES      = 63,
+        ATA_ID_UDMA_MODES       = 88,
+        ATA_ID_PIO4             = (1 << 1),
+
+        ATA_PCI_CTL_OFS         = 2,
+        ATA_SERNO_LEN           = 20,
+        ATA_UDMA0               = (1 << 0),
+        ATA_UDMA1               = ATA_UDMA0 | (1 << 1),
+        ATA_UDMA2               = ATA_UDMA1 | (1 << 2),
+        ATA_UDMA3               = ATA_UDMA2 | (1 << 3),
+        ATA_UDMA4               = ATA_UDMA3 | (1 << 4),
+        ATA_UDMA5               = ATA_UDMA4 | (1 << 5),
+        ATA_UDMA6               = ATA_UDMA5 | (1 << 6),
+        ATA_UDMA7               = ATA_UDMA6 | (1 << 7),
+        /* ATA_UDMA7 is just for completeness... doesn't exist (yet?).  */
+
+        ATA_UDMA_MASK_40C       = ATA_UDMA2,    /* udma0-2 */
+
+        /* DMA-related */
+        ATA_PRD_SZ              = 8,
+        ATA_PRD_TBL_SZ          = (ATA_MAX_PRD * ATA_PRD_SZ),
+        ATA_PRD_EOT             = (1 << 31),    /* end-of-table flag */
+
+        ATA_DMA_TABLE_OFS       = 4,
+        ATA_DMA_STATUS          = 2,
+        ATA_DMA_CMD             = 0,
+        ATA_DMA_WR              = (1 << 3),
+        ATA_DMA_START           = (1 << 0),
+        ATA_DMA_INTR            = (1 << 2),
+        ATA_DMA_ERR             = (1 << 1),
+        ATA_DMA_ACTIVE          = (1 << 0),
+
+        /* bits in ATA command block registers */
+        ATA_HOB                 = (1 << 7),     /* LBA48 selector */
+        ATA_NIEN                = (1 << 1),     /* disable-irq flag */
+        ATA_LBA                 = (1 << 6),     /* LBA28 selector */
+        ATA_DEV1                = (1 << 4),     /* Select Device 1 (slave) */
+        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_ABORTED             = (1 << 2),     /* command aborted */
+
+        /* ATA command block registers */
+        ATA_REG_DATA            = 0x00,
+        ATA_REG_ERR             = 0x01,
+        ATA_REG_NSECT           = 0x02,
+        ATA_REG_LBAL            = 0x03,
+        ATA_REG_LBAM            = 0x04,
+        ATA_REG_LBAH            = 0x05,
+        ATA_REG_DEVICE          = 0x06,
+        ATA_REG_STATUS          = 0x07,
+
+        ATA_REG_FEATURE         = ATA_REG_ERR, /* and their aliases */
+        ATA_REG_CMD             = ATA_REG_STATUS,
+        ATA_REG_BYTEL           = ATA_REG_LBAM,
+        ATA_REG_BYTEH           = ATA_REG_LBAH,
+        ATA_REG_DEVSEL          = ATA_REG_DEVICE,
+        ATA_REG_IRQ             = ATA_REG_NSECT,
+
+        /* ATA device commands */
+        ATA_CMD_CHK_POWER       = 0xE5, /* check 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_PIO_READ        = 0x20,
+        ATA_CMD_PIO_READ_EXT    = 0x24,
+        ATA_CMD_PIO_WRITE       = 0x30,
+        ATA_CMD_PIO_WRITE_EXT   = 0x34,
+        ATA_CMD_SET_FEATURES    = 0xEF,
+        ATA_CMD_PACKET          = 0xA0,
+        ATA_CMD_VERIFY          = 0x40,
+        ATA_CMD_VERIFY_EXT      = 0x42,
+
+        /* SETFEATURES stuff */
+        SETFEATURES_XFER        = 0x03,
+        XFER_UDMA_7             = 0x47,
+        XFER_UDMA_6             = 0x46,
+        XFER_UDMA_5             = 0x45,
+        XFER_UDMA_4             = 0x44,
+        XFER_UDMA_3             = 0x43,
+        XFER_UDMA_2             = 0x42,
+        XFER_UDMA_1             = 0x41,
+        XFER_UDMA_0             = 0x40,
+        XFER_MW_DMA_2           = 0x22,
+        XFER_MW_DMA_1           = 0x21,
+        XFER_MW_DMA_0           = 0x20,
+        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 */
+        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,
+
+        /* SATA Status and Control Registers */
+        SCR_STATUS              = 0,
+        SCR_ERROR               = 1,
+        SCR_CONTROL             = 2,
+        SCR_ACTIVE              = 3,
+        SCR_NOTIFICATION        = 4,
+
+        /* 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) */
+};
+
+enum ata_tf_protocols {
+        /* ATA taskfile 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 */
+        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;
+};
+
+struct ata_taskfile {
+        unsigned long           flags;          /* ATA_TFLAG_xxx */
+        u8                      protocol;       /* ATA_PROT_xxx */
+
+        u8                      ctl;            /* control reg */
+
+        u8                      hob_feature;    /* additional data */
+        u8                      hob_nsect;      /* to support LBA48 */
+        u8                      hob_lbal;
+        u8                      hob_lbam;
+        u8                      hob_lbah;
+
+        u8                      feature;
+        u8                      nsect;
+        u8                      lbal;
+        u8                      lbam;
+        u8                      lbah;
+
+        u8                      device;
+
+        u8                      command;        /* IO operation */
+};
+
+#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_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_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_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]) )
+
+static inline int atapi_cdb_len(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(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 ata_ok(u8 status)
+{
+        return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR))
+                        == ATA_DRDY);
+}
+
+#endif /* __LINUX_ATA_H__ */