#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <asm/scatterlist.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <linux/ata.h>
#include <linux/workqueue.h>
#include <scsi/scsi_host.h>
+#include <linux/acpi.h>
/*
* Define if arch has non-standard setup. This is a _PCI_ standard
#undef ATA_VERBOSE_DEBUG /* yet more debugging output */
#undef ATA_IRQ_TRAP /* define to ack screaming irqs */
#undef ATA_NDEBUG /* define to disable quick runtime checks */
-#define ATA_ENABLE_PATA /* define to enable PATA support in some
- * low-level drivers */
/* note: prints function name for you */
#define ATA_TAG_POISON 0xfafbfcfdU
/* move to PCI layer? */
-#define PCI_VDEVICE(vendor, device) \
- PCI_VENDOR_ID_##vendor, (device), \
- PCI_ANY_ID, PCI_ANY_ID, 0, 0
-
static inline struct device *pci_dev_to_dev(struct pci_dev *pdev)
{
return &pdev->dev;
ATA_FLAG_DEBUGMSG = (1 << 13),
ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */
ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */
+ ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */
/* The following flag belongs to ap->pflags but is kept in
* ap->flags because it's referenced in many LLDs and will be
/* host set flags */
ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */
+ ATA_HOST_STARTED = (1 << 1), /* Host started */
/* various lengths of time */
ATA_TMOUT_BOOT = 30 * HZ, /* heuristic */
* most devices.
*/
ATA_SPINUP_WAIT = 8000,
-
+
/* Horkage types. May be set by libata or controller on drives
(some horkage may be drive/controller pair dependant */
ATA_HORKAGE_DIAGNOSTIC = (1 << 0), /* Failed boot diag */
ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */
ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */
+ ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */
+ ATA_HORKAGE_DMA_RW_ONLY = (1 << 4), /* ATAPI DMA for RW only */
};
enum hsm_task_states {
HSM_ST_IDLE, /* no command on going */
+ HSM_ST_FIRST, /* (waiting the device to)
+ write CDB or first data block */
HSM_ST, /* (waiting the device to) transfer data */
HSM_ST_LAST, /* (waiting the device to) complete command */
HSM_ST_ERR, /* error */
- HSM_ST_FIRST, /* (waiting the device to)
- write CDB or first data block */
};
enum ata_completion_errors {
typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *classes);
struct ata_ioports {
- unsigned long cmd_addr;
- unsigned long data_addr;
- unsigned long error_addr;
- unsigned long feature_addr;
- unsigned long nsect_addr;
- unsigned long lbal_addr;
- unsigned long lbam_addr;
- unsigned long lbah_addr;
- unsigned long device_addr;
- unsigned long status_addr;
- unsigned long command_addr;
- unsigned long altstatus_addr;
- unsigned long ctl_addr;
- unsigned long bmdma_addr;
- unsigned long scr_addr;
-};
-
-struct ata_probe_ent {
- struct list_head node;
- struct device *dev;
- const struct ata_port_operations *port_ops;
- struct scsi_host_template *sht;
- struct ata_ioports port[ATA_MAX_PORTS];
- unsigned int n_ports;
- unsigned int dummy_port_mask;
- unsigned int pio_mask;
- unsigned int mwdma_mask;
- unsigned int udma_mask;
- unsigned long irq;
- unsigned long irq2;
- unsigned int irq_flags;
- unsigned long port_flags;
- unsigned long _host_flags;
- void __iomem *mmio_base;
- void *private_data;
-
- /* port_info for the secondary port. Together with irq2, it's
- * used to implement non-uniform secondary port. Currently,
- * the only user is ata_piix combined mode. This workaround
- * will be removed together with ata_probe_ent when init model
- * is updated.
- */
- const struct ata_port_info *pinfo2;
+ void __iomem *cmd_addr;
+ void __iomem *data_addr;
+ void __iomem *error_addr;
+ void __iomem *feature_addr;
+ void __iomem *nsect_addr;
+ void __iomem *lbal_addr;
+ void __iomem *lbam_addr;
+ void __iomem *lbah_addr;
+ void __iomem *device_addr;
+ void __iomem *status_addr;
+ void __iomem *command_addr;
+ void __iomem *altstatus_addr;
+ void __iomem *ctl_addr;
+ void __iomem *bmdma_addr;
+ void __iomem *scr_addr;
};
struct ata_host {
struct device *dev;
unsigned long irq;
unsigned long irq2;
- void __iomem *mmio_base;
+ void __iomem * const *iomap;
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 *simplex_claimed; /* channel owning the DMA */
struct ata_port *ports[0];
};
int dma_dir;
unsigned int pad_len;
-
- unsigned int nsect;
- unsigned int cursect;
+ unsigned int sect_size;
unsigned int nbytes;
unsigned int curbytes;
/* error history */
struct ata_ering ering;
+ int spdn_cnt;
unsigned int horkage; /* List of broken features */
+#ifdef CONFIG_SATA_ACPI
+ /* ACPI objects info */
+ acpi_handle obj_handle;
+#endif
};
/* Offset into struct ata_device. Fields above it are maintained
spinlock_t *lock;
unsigned long flags; /* ATA_FLAG_xxx */
unsigned int pflags; /* ATA_PFLAG_xxx */
- unsigned int id; /* unique id req'd by scsi midlyr */
- unsigned int port_no; /* unique port #; from zero */
+ unsigned int print_id; /* user visible unique port ID */
+ unsigned int port_no; /* 0 based port no. inside the host */
struct ata_prd *prd; /* our SG list */
dma_addr_t prd_dma; /* and its DMA mapping */
struct ata_port_operations {
void (*port_disable) (struct ata_port *);
- void (*dev_config) (struct ata_port *, struct ata_device *);
+ void (*dev_config) (struct ata_device *);
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);
+ unsigned long (*mode_filter) (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 (*post_set_mode) (struct ata_port *ap);
+ int (*cable_detect) (struct ata_port *ap);
+
int (*check_atapi_dma) (struct ata_queued_cmd *qc);
void (*bmdma_setup) (struct ata_queued_cmd *qc);
irq_handler_t irq_handler;
void (*irq_clear) (struct ata_port *);
+ u8 (*irq_on) (struct ata_port *);
+ u8 (*irq_ack) (struct ata_port *ap, unsigned int chk_drq);
u32 (*scr_read) (struct ata_port *ap, unsigned int sc_reg);
void (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
unsigned long mwdma_mask;
unsigned long udma_mask;
const struct ata_port_operations *port_ops;
+ irq_handler_t irq_handler;
void *private_data;
};
extern const unsigned long sata_deb_timing_long[];
extern const struct ata_port_operations ata_dummy_port_ops;
+extern const struct ata_port_info ata_dummy_port_info;
static inline const unsigned long *
sata_ehc_deb_timing(struct ata_eh_context *ehc)
return ap->ops == &ata_dummy_port_ops;
}
+extern void sata_print_link_status(struct ata_port *ap);
extern void ata_port_probe(struct ata_port *);
extern void __sata_phy_reset(struct ata_port *ap);
extern void sata_phy_reset(struct ata_port *ap);
extern int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
unsigned int n_ports);
extern void ata_pci_remove_one (struct pci_dev *pdev);
+#ifdef CONFIG_PM
extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg);
-extern void ata_pci_device_do_resume(struct pci_dev *pdev);
+extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev);
extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
extern int ata_pci_device_resume(struct pci_dev *pdev);
+#endif
extern int ata_pci_clear_simplex(struct pci_dev *pdev);
#endif /* CONFIG_PCI */
-extern int ata_device_add(const struct ata_probe_ent *ent);
-extern void ata_port_detach(struct ata_port *ap);
+extern struct ata_host *ata_host_alloc(struct device *dev, int max_ports);
+extern struct ata_host *ata_host_alloc_pinfo(struct device *dev,
+ const struct ata_port_info * const * ppi, int n_ports);
+extern int ata_host_start(struct ata_host *host);
+extern int ata_host_register(struct ata_host *host,
+ struct scsi_host_template *sht);
+extern int ata_host_activate(struct ata_host *host, int irq,
+ irq_handler_t irq_handler, unsigned long irq_flags,
+ struct scsi_host_template *sht);
+extern void ata_host_detach(struct ata_host *host);
extern void ata_host_init(struct ata_host *, struct device *,
unsigned long, const struct ata_port_operations *);
-extern void ata_host_remove(struct ata_host *host);
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_release(struct Scsi_Host *host);
extern void ata_sas_port_destroy(struct ata_port *);
extern struct ata_port *ata_sas_port_alloc(struct ata_host *,
struct ata_port_info *, struct Scsi_Host *);
extern int sata_scr_write_flush(struct ata_port *ap, int reg, u32 val);
extern int ata_port_online(struct ata_port *ap);
extern int ata_port_offline(struct ata_port *ap);
+#ifdef CONFIG_PM
extern int ata_scsi_device_resume(struct scsi_device *);
extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t mesg);
extern int ata_host_suspend(struct ata_host *host, pm_message_t mesg);
extern void ata_host_resume(struct ata_host *host);
+#endif
extern int ata_ratelimit(void);
extern int ata_busy_sleep(struct ata_port *ap,
unsigned long timeout_pat, unsigned long timeout);
extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
unsigned long interval_msec,
unsigned long timeout_msec);
+extern unsigned int ata_dev_try_classify(struct ata_port *, unsigned int, u8 *);
/*
* Default driver ops implementations
extern u8 ata_altstatus(struct ata_port *ap);
extern void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf);
extern int ata_port_start (struct ata_port *ap);
-extern void ata_port_stop (struct ata_port *ap);
-extern void ata_host_stop (struct ata_host *host);
extern irqreturn_t ata_interrupt (int irq, void *dev_instance);
-extern void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data);
-extern void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data);
-extern void ata_pio_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data);
+extern void ata_data_xfer(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data);
+extern void ata_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
unsigned int n_elem);
extern unsigned int ata_dev_classify(const struct ata_taskfile *tf);
+extern void ata_dev_disable(struct ata_device *adev);
extern void ata_id_string(const u16 *id, unsigned char *s,
unsigned int ofs, unsigned int len);
extern void ata_id_c_string(const u16 *id, unsigned char *s,
unsigned int ofs, unsigned int len);
+extern void ata_id_to_dma_mode(struct ata_device *dev, u8 unknown);
extern unsigned long ata_device_blacklisted(const struct ata_device *dev);
extern void ata_bmdma_setup (struct ata_queued_cmd *qc);
extern void ata_bmdma_start (struct ata_queued_cmd *qc);
extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
int queue_depth);
extern struct ata_device *ata_dev_pair(struct ata_device *adev);
+extern int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
+extern u8 ata_irq_on(struct ata_port *ap);
+extern u8 ata_dummy_irq_on(struct ata_port *ap);
+extern u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq);
+extern u8 ata_dummy_irq_ack(struct ata_port *ap, unsigned int chk_drq);
+
+extern int ata_cable_40wire(struct ata_port *ap);
+extern int ata_cable_80wire(struct ata_port *ap);
+extern int ata_cable_sata(struct ata_port *ap);
+extern int ata_cable_unknown(struct ata_port *ap);
/*
* Timing helpers
unsigned long val;
};
-extern void ata_pci_host_stop (struct ata_host *host);
-extern struct ata_probe_ent *
-ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int portmask);
+extern int ata_pci_init_native_host(struct ata_host *host,
+ unsigned int port_mask);
+extern int ata_pci_prepare_native_host(struct pci_dev *pdev,
+ const struct ata_port_info * const * ppi,
+ int n_ports, struct ata_host **r_host);
extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits);
-extern unsigned long ata_pci_default_filter(const struct ata_port *, struct ata_device *, unsigned long);
+extern unsigned long ata_pci_default_filter(struct ata_device *, unsigned long);
#endif /* CONFIG_PCI */
/*
* printk helpers
*/
#define ata_port_printk(ap, lv, fmt, args...) \
- printk(lv"ata%u: "fmt, (ap)->id , ##args)
+ printk(lv"ata%u: "fmt, (ap)->print_id , ##args)
#define ata_dev_printk(dev, lv, fmt, args...) \
- printk(lv"ata%u.%02u: "fmt, (dev)->ap->id, (dev)->devno , ##args)
+ printk(lv"ata%u.%02u: "fmt, (dev)->ap->print_id, (dev)->devno , ##args)
/*
* ata_eh_info helpers
return ap->ops->check_status(ap);
}
+/**
+ * ata_ncq_enabled - Test whether NCQ is enabled
+ * @dev: ATA device to test for
+ *
+ * LOCKING:
+ * spin_lock_irqsave(host lock)
+ *
+ * RETURNS:
+ * 1 if NCQ is enabled for @dev, 0 otherwise.
+ */
+static inline int ata_ncq_enabled(struct ata_device *dev)
+{
+ return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF |
+ ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ;
+}
/**
* ata_pause - Flush writes and pause 400 nanoseconds.
u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) {
- unsigned long l = ap->ioaddr.status_addr;
if (ata_msg_warn(ap))
- printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%lX\n",
- status, l);
+ printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%p\n",
+ status, ap->ioaddr.status_addr);
}
return status;
qc->dma_dir = DMA_NONE;
qc->__sg = NULL;
qc->flags = 0;
- qc->cursect = qc->cursg = qc->cursg_ofs = 0;
- qc->nsect = 0;
+ qc->cursg = qc->cursg_ofs = 0;
qc->nbytes = qc->curbytes = 0;
qc->n_elem = 0;
qc->err_mask = 0;
qc->pad_len = 0;
+ qc->sect_size = ATA_SECT_SIZE;
ata_tf_init(qc->dev, &qc->tf);
qc->result_tf.feature = 0;
}
-/**
- * ata_irq_ack - Acknowledge a device interrupt.
- * @ap: Port on which interrupts are enabled.
- *
- * Wait up to 10 ms for legacy IDE device to become idle (BUSY
- * or BUSY+DRQ clear). Obtain dma status and port status from
- * device. Clear the interrupt. Return port status.
- *
- * LOCKING:
- */
-
-static inline u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq)
-{
- unsigned int bits = chk_drq ? ATA_BUSY | ATA_DRQ : ATA_BUSY;
- u8 host_stat, post_stat, status;
-
- status = ata_busy_wait(ap, bits, 1000);
- if (status & bits)
- if (ata_msg_err(ap))
- printk(KERN_ERR "abnormal status 0x%X\n", status);
-
- /* get controller status; clear intr, err bits */
- if (ap->flags & ATA_FLAG_MMIO) {
- void __iomem *mmio = (void __iomem *) ap->ioaddr.bmdma_addr;
- host_stat = readb(mmio + ATA_DMA_STATUS);
- writeb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
- mmio + ATA_DMA_STATUS);
-
- post_stat = readb(mmio + ATA_DMA_STATUS);
- } else {
- host_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
- outb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
- ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
-
- post_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
- }
-
- if (ata_msg_intr(ap))
- printk(KERN_INFO "%s: irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",
- __FUNCTION__,
- host_stat, post_stat, status);
-
- return status;
-}
-
static inline int ata_try_flush_cache(const struct ata_device *dev)
{
return ata_id_wcache_enabled(dev->id) ||
static inline int ata_pad_alloc(struct ata_port *ap, struct device *dev)
{
ap->pad_dma = 0;
- ap->pad = dma_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ,
- &ap->pad_dma, GFP_KERNEL);
+ ap->pad = dmam_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ,
+ &ap->pad_dma, GFP_KERNEL);
return (ap->pad == NULL) ? -ENOMEM : 0;
}
static inline void ata_pad_free(struct ata_port *ap, struct device *dev)
{
- dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
+ dmam_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];
+ return *(struct ata_port **)&host->hostdata[0];
}
#endif /* __LINUX_LIBATA_H__ */
projects / powerpc.git / blobdiff