#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
+#include <asm/scatterlist.h>
#include <asm/io.h>
#include <linux/ata.h>
#include <linux/workqueue.h>
ATA_DFLAG_CFG_MASK = (1 << 8) - 1,
ATA_DFLAG_PIO = (1 << 8), /* device currently in PIO mode */
+ ATA_DFLAG_SUSPENDED = (1 << 9), /* device suspended */
ATA_DFLAG_INIT_MASK = (1 << 16) - 1,
ATA_DFLAG_DETACH = (1 << 16),
ATA_FLAG_HRST_TO_RESUME = (1 << 11), /* hardreset to resume phy */
ATA_FLAG_SKIP_D2H_BSY = (1 << 12), /* can't wait for the first D2H
* Register FIS clearing BSY */
-
ATA_FLAG_DEBUGMSG = (1 << 13),
- ATA_FLAG_FLUSH_PORT_TASK = (1 << 14), /* flush port task */
- ATA_FLAG_EH_PENDING = (1 << 15), /* EH pending */
- ATA_FLAG_EH_IN_PROGRESS = (1 << 16), /* EH in progress */
- ATA_FLAG_FROZEN = (1 << 17), /* port is frozen */
- ATA_FLAG_RECOVERED = (1 << 18), /* recovery action performed */
- ATA_FLAG_LOADING = (1 << 19), /* boot/loading probe */
- ATA_FLAG_UNLOADING = (1 << 20), /* module is unloading */
- ATA_FLAG_SCSI_HOTPLUG = (1 << 21), /* SCSI hotplug scheduled */
+ /* The following flag belongs to ap->pflags but is kept in
+ * ap->flags because it's referenced in many LLDs and will be
+ * removed in not-too-distant future.
+ */
+ ATA_FLAG_DISABLED = (1 << 23), /* port is disabled, ignore it */
+
+ /* bits 24:31 of ap->flags are reserved for LLD specific flags */
- ATA_FLAG_DISABLED = (1 << 22), /* port is disabled, ignore it */
- ATA_FLAG_SUSPENDED = (1 << 23), /* port is suspended (power) */
+ /* struct ata_port pflags */
+ ATA_PFLAG_EH_PENDING = (1 << 0), /* EH pending */
+ ATA_PFLAG_EH_IN_PROGRESS = (1 << 1), /* EH in progress */
+ ATA_PFLAG_FROZEN = (1 << 2), /* port is frozen */
+ ATA_PFLAG_RECOVERED = (1 << 3), /* recovery action performed */
+ ATA_PFLAG_LOADING = (1 << 4), /* boot/loading probe */
+ ATA_PFLAG_UNLOADING = (1 << 5), /* module is unloading */
+ ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */
- /* bits 24:31 of ap->flags are reserved for LLDD specific flags */
+ ATA_PFLAG_FLUSH_PORT_TASK = (1 << 16), /* flush port task */
+ ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */
+ ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */
/* struct ata_queued_cmd flags */
ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */
ATA_EH_REVALIDATE = (1 << 0),
ATA_EH_SOFTRESET = (1 << 1),
ATA_EH_HARDRESET = (1 << 2),
+ ATA_EH_SUSPEND = (1 << 3),
+ ATA_EH_RESUME = (1 << 4),
+ ATA_EH_PM_FREEZE = (1 << 5),
ATA_EH_RESET_MASK = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
- ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE,
+ ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_SUSPEND |
+ ATA_EH_RESUME | ATA_EH_PM_FREEZE,
/* ata_eh_info->flags */
ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */
+ ATA_EHI_RESUME_LINK = (1 << 1), /* resume link (reset modifier) */
+ ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */
+ ATA_EHI_QUIET = (1 << 3), /* be quiet */
ATA_EHI_DID_RESET = (1 << 16), /* already reset this port */
+ ATA_EHI_RESET_MODIFIER_MASK = ATA_EHI_RESUME_LINK,
+
/* max repeat if error condition is still set after ->error_handler */
ATA_EH_MAX_REPEAT = 5,
const struct ata_port_operations *ops;
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 hard_port_no; /* hardware port #; from zero */
struct list_head eh_done_q;
wait_queue_head_t eh_wait_q;
+ pm_message_t pm_mesg;
+ int *pm_result;
+
void *private_data;
u8 sector_buf[ATA_SECT_SIZE]; /* owned by EH */
void (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
u32 val);
+ int (*port_suspend) (struct ata_port *ap, pm_message_t mesg);
+ int (*port_resume) (struct ata_port *ap);
+
int (*port_start) (struct ata_port *ap);
void (*port_stop) (struct ata_port *ap);
#define FIT(v,vmin,vmax) max_t(short,min_t(short,v,vmax),vmin)
-extern const unsigned long sata_deb_timing_boot[];
-extern const unsigned long sata_deb_timing_eh[];
-extern const unsigned long sata_deb_timing_before_fsrst[];
+extern const unsigned long sata_deb_timing_normal[];
+extern const unsigned long sata_deb_timing_hotplug[];
+extern const unsigned long sata_deb_timing_long[];
+
+static inline const unsigned long *
+sata_ehc_deb_timing(struct ata_eh_context *ehc)
+{
+ if (ehc->i.flags & ATA_EHI_HOTPLUGGED)
+ return sata_deb_timing_hotplug;
+ else
+ return sata_deb_timing_normal;
+}
extern void ata_port_probe(struct ata_port *);
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);
-extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t state);
+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 ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
extern int ata_pci_device_resume(struct pci_dev *pdev);
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 void ata_host_set_init(struct ata_host_set *, struct device *,
+ unsigned long, const struct ata_port_operations *);
extern void ata_host_set_remove(struct ata_host_set *host_set);
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_set *,
+ struct ata_port_info *, struct Scsi_Host *);
+extern int ata_sas_port_init(struct ata_port *);
+extern int ata_sas_port_start(struct ata_port *ap);
+extern void ata_sas_port_stop(struct ata_port *ap);
+extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *);
+extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),
+ struct ata_port *ap);
extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
extern int sata_scr_valid(struct ata_port *ap);
extern int sata_scr_read(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);
extern int ata_scsi_device_resume(struct scsi_device *);
-extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t state);
-extern int ata_device_resume(struct ata_device *);
-extern int ata_device_suspend(struct ata_device *, pm_message_t state);
+extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t mesg);
+extern int ata_host_set_suspend(struct ata_host_set *host_set,
+ pm_message_t mesg);
+extern void ata_host_set_resume(struct ata_host_set *host_set);
extern int ata_ratelimit(void);
extern unsigned int ata_busy_sleep(struct ata_port *ap,
unsigned long timeout_pat,
(ehi)->desc_len = 0; \
} while (0)
-static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi)
+static inline void __ata_ehi_hotplugged(struct ata_eh_info *ehi)
{
if (ehi->flags & ATA_EHI_HOTPLUGGED)
return;
- ehi->flags |= ATA_EHI_HOTPLUGGED;
+ ehi->flags |= ATA_EHI_HOTPLUGGED | ATA_EHI_RESUME_LINK;
ehi->hotplug_timestamp = jiffies;
- ehi->err_mask |= AC_ERR_ATA_BUS;
ehi->action |= ATA_EH_SOFTRESET;
ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1;
}
+static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi)
+{
+ __ata_ehi_hotplugged(ehi);
+ ehi->err_mask |= AC_ERR_ATA_BUS;
+}
+
/*
* qc helpers
*/
return tag == ATA_MAX_QUEUE - 1;
}
+/*
+ * device helpers
+ */
static inline unsigned int ata_class_enabled(unsigned int class)
{
return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI;
return ata_class_absent(dev->class);
}
+static inline unsigned int ata_dev_ready(const struct ata_device *dev)
+{
+ return ata_dev_enabled(dev) && !(dev->flags & ATA_DFLAG_SUSPENDED);
+}
+
+/*
+ * port helpers
+ */
+static inline int ata_port_max_devices(const struct ata_port *ap)
+{
+ if (ap->flags & ATA_FLAG_SLAVE_POSS)
+ return 2;
+ return 1;
+}
+
+
static inline u8 ata_chk_status(struct ata_port *ap)
{
return ap->ops->check_status(ap);
projects / linux-2.6-omap-h63xx.git / blobdiff