#include <asm/io.h>
#include <linux/ata.h>
#include <linux/workqueue.h>
+#include <scsi/scsi_host.h>
/*
* compile-time options: to be removed as soon as all the drivers are
#undef ATA_NDEBUG /* define to disable quick runtime checks */
#undef ATA_ENABLE_PATA /* define to enable PATA support in some
* low-level drivers */
-#undef ATAPI_ENABLE_DMADIR /* enables ATAPI DMADIR bridge support */
/* note: prints function name for you */
ATA_DEF_QUEUE = 1,
ATA_MAX_QUEUE = 1,
ATA_MAX_SECTORS = 200, /* FIXME */
+ ATA_MAX_SECTORS_LBA48 = 65535,
ATA_MAX_BUS = 2,
ATA_DEF_BUSY_WAIT = 10000,
ATA_SHORT_PAUSE = (HZ >> 6) + 1,
ATA_SHT_USE_CLUSTERING = 1,
/* struct ata_device stuff */
- ATA_DFLAG_LBA48 = (1 << 0), /* device supports LBA48 */
- ATA_DFLAG_PIO = (1 << 1), /* device currently in PIO mode */
- ATA_DFLAG_LBA = (1 << 2), /* device supports LBA */
+ ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */
+ ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */
+ ATA_DFLAG_CFG_MASK = (1 << 8) - 1,
+
+ ATA_DFLAG_PIO = (1 << 8), /* device currently in PIO mode */
ATA_DEV_UNKNOWN = 0, /* unknown device */
ATA_DEV_ATA = 1, /* ATA device */
ATA_DEV_NONE = 5, /* no device */
/* struct ata_port flags */
- ATA_FLAG_SLAVE_POSS = (1 << 1), /* host supports slave dev */
+ ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */
/* (doesn't imply presence) */
- ATA_FLAG_PORT_DISABLED = (1 << 2), /* port is disabled, ignore it */
- ATA_FLAG_SATA = (1 << 3),
- ATA_FLAG_NO_LEGACY = (1 << 4), /* no legacy mode check */
- ATA_FLAG_SRST = (1 << 5), /* (obsolete) use ATA SRST, not E.D.D. */
- ATA_FLAG_MMIO = (1 << 6), /* use MMIO, not PIO */
- ATA_FLAG_SATA_RESET = (1 << 7), /* (obsolete) use COMRESET */
- ATA_FLAG_PIO_DMA = (1 << 8), /* PIO cmds via DMA */
- ATA_FLAG_NOINTR = (1 << 9), /* FIXME: Remove this once
- * proper HSM is in place. */
- ATA_FLAG_DEBUGMSG = (1 << 10),
- ATA_FLAG_NO_ATAPI = (1 << 11), /* No ATAPI support */
-
- ATA_FLAG_SUSPENDED = (1 << 12), /* port is suspended */
-
- ATA_FLAG_PIO_LBA48 = (1 << 13), /* Host DMA engine is LBA28 only */
- ATA_FLAG_IRQ_MASK = (1 << 14), /* Mask IRQ in PIO xfers */
-
- ATA_FLAG_FLUSH_PORT_TASK = (1 << 15), /* Flush port task */
- ATA_FLAG_IN_EH = (1 << 16), /* EH in progress */
-
- ATA_QCFLAG_ACTIVE = (1 << 1), /* cmd not yet ack'd to scsi lyer */
- ATA_QCFLAG_SG = (1 << 3), /* have s/g table? */
- ATA_QCFLAG_SINGLE = (1 << 4), /* no s/g, just a single buffer */
+ ATA_FLAG_SATA = (1 << 1),
+ ATA_FLAG_NO_LEGACY = (1 << 2), /* no legacy mode check */
+ ATA_FLAG_MMIO = (1 << 3), /* use MMIO, not PIO */
+ ATA_FLAG_SRST = (1 << 4), /* (obsolete) use ATA SRST, not E.D.D. */
+ ATA_FLAG_SATA_RESET = (1 << 5), /* (obsolete) use COMRESET */
+ ATA_FLAG_NO_ATAPI = (1 << 6), /* No ATAPI support */
+ ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */
+ ATA_FLAG_PIO_LBA48 = (1 << 8), /* Host DMA engine is LBA28 only */
+ ATA_FLAG_IRQ_MASK = (1 << 9), /* Mask IRQ in PIO xfers */
+
+ ATA_FLAG_NOINTR = (1 << 16), /* FIXME: Remove this once
+ * proper HSM is in place. */
+ ATA_FLAG_DEBUGMSG = (1 << 17),
+ ATA_FLAG_FLUSH_PORT_TASK = (1 << 18), /* flush port task */
+
+ ATA_FLAG_DISABLED = (1 << 19), /* port is disabled, ignore it */
+ ATA_FLAG_SUSPENDED = (1 << 20), /* port is suspended */
+
+ /* bits 24:31 of ap->flags are reserved for LLDD specific flags */
+
+ /* struct ata_queued_cmd flags */
+ ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */
+ ATA_QCFLAG_SG = (1 << 1), /* have s/g table? */
+ ATA_QCFLAG_SINGLE = (1 << 2), /* no s/g, just a single buffer */
ATA_QCFLAG_DMAMAP = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
- ATA_QCFLAG_EH_SCHEDULED = (1 << 5), /* EH scheduled */
+ ATA_QCFLAG_IO = (1 << 3), /* standard IO command */
+ ATA_QCFLAG_EH_SCHEDULED = (1 << 4), /* EH scheduled */
+ /* host set flags */
+ ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host_set only */
+
/* various lengths of time */
- ATA_TMOUT_EDD = 5 * HZ, /* heuristic */
ATA_TMOUT_PIO = 30 * HZ,
ATA_TMOUT_BOOT = 30 * HZ, /* heuristic */
ATA_TMOUT_BOOT_QUICK = 7 * HZ, /* heuristic */
/* size of buffer to pad xfers ending on unaligned boundaries */
ATA_DMA_PAD_SZ = 4,
ATA_DMA_PAD_BUF_SZ = ATA_DMA_PAD_SZ * ATA_MAX_QUEUE,
-
- /* Masks for port functions */
+
+ /* masks for port functions */
ATA_PORT_PRIMARY = (1 << 0),
ATA_PORT_SECONDARY = (1 << 1),
+
+ /* how hard are we gonna try to probe/recover devices */
+ ATA_PROBE_MAX_TRIES = 3,
};
enum hsm_task_states {
/* typedefs */
typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
typedef void (*ata_probeinit_fn_t)(struct ata_port *);
-typedef int (*ata_reset_fn_t)(struct ata_port *, int, unsigned int *);
+typedef int (*ata_reset_fn_t)(struct ata_port *, unsigned int *);
typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *);
struct ata_ioports {
unsigned long irq;
unsigned int irq_flags;
unsigned long host_flags;
+ unsigned long host_set_flags;
void __iomem *mmio_base;
void *private_data;
};
unsigned int n_ports;
void *private_data;
const struct ata_port_operations *ops;
+ unsigned long flags;
+ int simplex_claimed; /* Keep seperate in case we
+ ever need to do this locked */
struct ata_port * ports[0];
};
unsigned int mwdma_mask;
unsigned int udma_mask;
unsigned int cbl; /* cable type; ATA_CBL_xxx */
+ unsigned int sata_spd_limit; /* SATA PHY speed limit */
struct ata_device device[ATA_MAX_DEVICES];
void (*set_piomode) (struct ata_port *, struct ata_device *);
void (*set_dmamode) (struct ata_port *, struct ata_device *);
+ unsigned long (*mode_filter) (const struct ata_port *, struct ata_device *, unsigned long);
void (*tf_load) (struct ata_port *ap, const struct ata_taskfile *tf);
void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
void (*dev_select)(struct ata_port *ap, unsigned int device);
void (*phy_reset) (struct ata_port *ap); /* obsolete */
+ void (*set_mode) (struct ata_port *ap);
int (*probe_reset) (struct ata_port *ap, unsigned int *classes);
void (*post_set_mode) (struct ata_port *ap);
extern void __sata_phy_reset(struct ata_port *ap);
extern void sata_phy_reset(struct ata_port *ap);
extern void ata_bus_reset(struct ata_port *ap);
+extern int ata_set_sata_spd(struct ata_port *ap);
extern int ata_drive_probe_reset(struct ata_port *ap,
ata_probeinit_fn_t probeinit,
ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
ata_postreset_fn_t postreset, unsigned int *classes);
extern void ata_std_probeinit(struct ata_port *ap);
-extern int ata_std_softreset(struct ata_port *ap, int verbose,
- unsigned int *classes);
-extern int sata_std_hardreset(struct ata_port *ap, int verbose,
- unsigned int *class);
+extern int ata_std_softreset(struct ata_port *ap, unsigned int *classes);
+extern int sata_std_hardreset(struct ata_port *ap, unsigned int *class);
extern void ata_std_postreset(struct ata_port *ap, unsigned int *classes);
extern int ata_dev_revalidate(struct ata_port *ap, struct ata_device *dev,
int post_reset);
extern int ata_scsi_detect(struct scsi_host_template *sht);
extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
-extern int ata_scsi_error(struct Scsi_Host *host);
extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
extern int ata_scsi_release(struct Scsi_Host *host);
unsigned long timeout);
extern void ata_port_queue_task(struct ata_port *ap, void (*fn)(void *),
void *data, unsigned long delay);
+extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
+ unsigned long interval_msec,
+ unsigned long timeout_msec);
/*
* Default driver ops implementations
extern u8 ata_bmdma_status(struct ata_port *ap);
extern void ata_bmdma_irq_clear(struct ata_port *ap);
extern void __ata_qc_complete(struct ata_queued_cmd *qc);
-extern void ata_eng_timeout(struct ata_port *ap);
extern void ata_scsi_simulate(struct ata_port *ap, struct ata_device *dev,
struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *));
extern unsigned long ata_pci_default_filter(const struct ata_port *, struct ata_device *, unsigned long);
#endif /* CONFIG_PCI */
+/*
+ * EH
+ */
+extern void ata_eng_timeout(struct ata_port *ap);
+extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
+extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
+
static inline int
ata_sg_is_last(struct scatterlist *sg, struct ata_queued_cmd *qc)
return (tag < ATA_MAX_QUEUE) ? 1 : 0;
}
-static inline unsigned int ata_class_present(unsigned int class)
+static inline unsigned int ata_class_enabled(unsigned int class)
{
return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI;
}
-static inline unsigned int ata_dev_present(const struct ata_device *dev)
+static inline unsigned int ata_class_disabled(unsigned int class)
{
- return ata_class_present(dev->class);
+ return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP;
+}
+
+static inline unsigned int ata_class_absent(unsigned int class)
+{
+ return !ata_class_enabled(class) && !ata_class_disabled(class);
+}
+
+static inline unsigned int ata_dev_enabled(const struct ata_device *dev)
+{
+ return ata_class_enabled(dev->class);
+}
+
+static inline unsigned int ata_dev_disabled(const struct ata_device *dev)
+{
+ return ata_class_disabled(dev->class);
+}
+
+static inline unsigned int ata_dev_absent(const struct ata_device *dev)
+{
+ return ata_class_absent(dev->class);
}
static inline u8 ata_chk_status(struct ata_port *ap)
dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
}
+static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host)
+{
+ return (struct ata_port *) &host->hostdata[0];
+}
+
#endif /* __LINUX_LIBATA_H__ */
git.openpandora.org / pandora-kernel.git / blobdiff