#include <linux/workqueue.h>
/*
- * compile-time options: to be removed as soon as all the drivers are
- * converted to the new debugging mechanism
+ * compile-time options
*/
#undef ATA_DEBUG /* debugging output */
#undef ATA_VERBOSE_DEBUG /* yet more debugging output */
#define BPRINTK(fmt, args...) if (ap->flags & ATA_FLAG_DEBUGMSG) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
-/* NEW: debug levels */
-#define HAVE_LIBATA_MSG 1
-
-enum {
- ATA_MSG_DRV = 0x0001,
- ATA_MSG_INFO = 0x0002,
- ATA_MSG_PROBE = 0x0004,
- ATA_MSG_WARN = 0x0008,
- ATA_MSG_MALLOC = 0x0010,
- ATA_MSG_CTL = 0x0020,
- ATA_MSG_INTR = 0x0040,
- ATA_MSG_ERR = 0x0080,
-};
-
-#define ata_msg_drv(p) ((p)->msg_enable & ATA_MSG_DRV)
-#define ata_msg_info(p) ((p)->msg_enable & ATA_MSG_INFO)
-#define ata_msg_probe(p) ((p)->msg_enable & ATA_MSG_PROBE)
-#define ata_msg_warn(p) ((p)->msg_enable & ATA_MSG_WARN)
-#define ata_msg_malloc(p) ((p)->msg_enable & ATA_MSG_MALLOC)
-#define ata_msg_ctl(p) ((p)->msg_enable & ATA_MSG_CTL)
-#define ata_msg_intr(p) ((p)->msg_enable & ATA_MSG_INTR)
-#define ata_msg_err(p) ((p)->msg_enable & ATA_MSG_ERR)
-
-static inline u32 ata_msg_init(int dval, int default_msg_enable_bits)
-{
- if (dval < 0 || dval >= (sizeof(u32) * 8))
- return default_msg_enable_bits; /* should be 0x1 - only driver info msgs */
- if (!dval)
- return 0;
- return (1 << dval) - 1;
-}
+#ifdef ATA_NDEBUG
+#define assert(expr)
+#else
+#define assert(expr) \
+ if(unlikely(!(expr))) { \
+ printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
+ #expr,__FILE__,__FUNCTION__,__LINE__); \
+ }
+#endif
/* defines only for the constants which don't work well as enums */
#define ATA_TAG_POISON 0xfafbfcfdU
ATA_SHT_USE_CLUSTERING = 1,
/* struct ata_device stuff */
- 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_DFLAG_LBA48 = (1 << 0), /* device supports LBA48 */
+ ATA_DFLAG_PIO = (1 << 1), /* device currently in PIO mode */
+ ATA_DFLAG_LOCK_SECTORS = (1 << 2), /* don't adjust max_sectors */
+ ATA_DFLAG_LBA = (1 << 3), /* device supports LBA */
ATA_DEV_UNKNOWN = 0, /* unknown device */
ATA_DEV_ATA = 1, /* ATA device */
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_SRST = (1 << 5), /* 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_SATA_RESET = (1 << 7), /* 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_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_QCFLAG_DMAMAP = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
- ATA_QCFLAG_EH_SCHEDULED = (1 << 5), /* 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 */
PORT_DISABLED = 2,
/* encoding various smaller bitmaps into a single
- * unsigned int bitmap
+ * unsigned long bitmap
*/
- ATA_BITS_PIO = 5,
- ATA_BITS_MWDMA = 3,
- ATA_BITS_UDMA = 8,
-
- ATA_SHIFT_PIO = 0,
- ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_BITS_PIO,
- ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_BITS_MWDMA,
-
- ATA_MASK_PIO = ((1 << ATA_BITS_PIO) - 1) << ATA_SHIFT_PIO,
- ATA_MASK_MWDMA = ((1 << ATA_BITS_MWDMA) - 1) << ATA_SHIFT_MWDMA,
- ATA_MASK_UDMA = ((1 << ATA_BITS_UDMA) - 1) << ATA_SHIFT_UDMA,
+ ATA_SHIFT_UDMA = 0,
+ ATA_SHIFT_MWDMA = 8,
+ ATA_SHIFT_PIO = 11,
/* size of buffer to pad xfers ending on unaligned boundaries */
ATA_DMA_PAD_SZ = 4,
};
enum ata_completion_errors {
- AC_ERR_DEV = (1 << 0), /* device reported error */
- AC_ERR_HSM = (1 << 1), /* host state machine violation */
- AC_ERR_TIMEOUT = (1 << 2), /* timeout */
- AC_ERR_MEDIA = (1 << 3), /* media error */
- AC_ERR_ATA_BUS = (1 << 4), /* ATA bus error */
- AC_ERR_HOST_BUS = (1 << 5), /* host bus error */
- AC_ERR_SYSTEM = (1 << 6), /* system error */
- AC_ERR_INVALID = (1 << 7), /* invalid argument */
- AC_ERR_OTHER = (1 << 8), /* unknown */
+ AC_ERR_OTHER = (1 << 0),
+ AC_ERR_DEV = (1 << 1),
+ AC_ERR_ATA_BUS = (1 << 2),
+ AC_ERR_HOST_BUS = (1 << 3),
};
/* forward declarations */
struct ata_queued_cmd;
/* 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 void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *);
+typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
struct ata_ioports {
unsigned long cmd_addr;
unsigned long irq;
unsigned int irq_flags;
unsigned long host_flags;
- unsigned long port_flags[ATA_MAX_PORTS]; /* pata fix */
- 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 long flags; /* ATA_DFLAG_xxx */
unsigned int class; /* ATA_DEV_xxx */
unsigned int devno; /* 0 or 1 */
- u16 *id; /* IDENTIFY xxx DEVICE data */
+ u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
u8 pio_mode;
u8 dma_mode;
u8 xfer_mode;
unsigned int multi_count; /* sectors count for
READ/WRITE MULTIPLE */
- unsigned int max_sectors; /* per-device max sectors */
- unsigned int cdb_len;
-
- /* per-dev xfer mask */
- unsigned int pio_mask;
- unsigned int mwdma_mask;
- unsigned int udma_mask;
/* for CHS addressing */
u16 cylinders; /* Number of cylinders */
unsigned int mwdma_mask;
unsigned int udma_mask;
unsigned int cbl; /* cable type; ATA_CBL_xxx */
+ unsigned int cdb_len;
struct ata_device device[ATA_MAX_DEVICES];
struct ata_host_stats stats;
struct ata_host_set *host_set;
- struct device *dev;
- struct work_struct port_task;
+ struct work_struct packet_task;
+ struct work_struct pio_task;
unsigned int hsm_task_state;
unsigned long pio_task_timeout;
- u32 msg_enable;
- struct list_head eh_done_q;
-
void *private_data;
};
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);
u8 (*check_altstatus)(struct ata_port *ap);
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 (*phy_reset) (struct ata_port *ap);
void (*post_set_mode) (struct ata_port *ap);
int (*check_atapi_dma) (struct ata_queued_cmd *qc);
void (*bmdma_start) (struct ata_queued_cmd *qc);
void (*qc_prep) (struct ata_queued_cmd *qc);
- unsigned int (*qc_issue) (struct ata_queued_cmd *qc);
+ int (*qc_issue) (struct ata_queued_cmd *qc);
void (*eng_timeout) (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_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 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 void ata_port_disable(struct ata_port *);
extern void ata_std_ports(struct ata_ioports *ioaddr);
#ifdef CONFIG_PCI
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 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_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 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_error(struct Scsi_Host *host);
extern int ata_scsi_release(struct Scsi_Host *host);
extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
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_scsi_device_suspend(struct scsi_device *);
extern int ata_device_resume(struct ata_port *, struct ata_device *);
-extern int ata_device_suspend(struct ata_port *, struct ata_device *, pm_message_t state);
+extern int ata_device_suspend(struct ata_port *, struct ata_device *);
extern int ata_ratelimit(void);
-extern unsigned int ata_busy_sleep(struct ata_port *ap,
- unsigned long timeout_pat,
- unsigned long timeout);
-extern void ata_port_queue_task(struct ata_port *ap, void (*fn)(void *),
- void *data, unsigned long delay);
/*
* Default driver ops implementations
extern u8 ata_check_status(struct ata_port *ap);
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_std_probe_reset(struct ata_port *ap, unsigned int *classes);
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_set *host_set);
extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
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 int ata_qc_issue_prot(struct ata_queued_cmd *qc);
extern void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf,
unsigned int buflen);
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_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_dev_id_string(const u16 *id, unsigned char *s,
+ unsigned int ofs, unsigned int len);
+extern void ata_dev_config(struct ata_port *ap, unsigned int i);
extern void ata_bmdma_setup (struct ata_queued_cmd *qc);
extern void ata_bmdma_start (struct ata_queued_cmd *qc);
extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
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_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,
struct block_device *bdev,
sector_t capacity, int geom[]);
extern int ata_scsi_slave_config(struct scsi_device *sdev);
-extern struct ata_device *ata_dev_pair(struct ata_port *ap,
- struct ata_device *adev);
/*
* Timing helpers
extern struct ata_probe_ent *
ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int portmask);
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);
+
#endif /* CONFIG_PCI */
return (tag < ATA_MAX_QUEUE) ? 1 : 0;
}
-static inline unsigned int ata_class_present(unsigned int class)
-{
- return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI;
-}
-
static inline unsigned int ata_dev_present(const struct ata_device *dev)
{
- return ata_class_present(dev->class);
+ return ((dev->class == ATA_DEV_ATA) ||
+ (dev->class == ATA_DEV_ATAPI));
}
static inline u8 ata_chk_status(struct ata_port *ap)
if (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%lX\n",
+ status, l);
}
return status;
ata_tf_init(qc->ap, &qc->tf, qc->dev->devno);
}
-/**
- * ata_qc_complete - Complete an active ATA command
- * @qc: Command to complete
- * @err_mask: ATA Status register contents
- *
- * Indicate to the mid and upper layers that an ATA
- * command has completed, with either an ok or not-ok status.
- *
- * LOCKING:
- * spin_lock_irqsave(host_set lock)
- */
-static inline void ata_qc_complete(struct ata_queued_cmd *qc)
-{
- if (unlikely(qc->flags & ATA_QCFLAG_EH_SCHEDULED))
- return;
-
- __ata_qc_complete(qc);
-}
/**
* ata_irq_on - Enable interrupts on a port.
status = ata_busy_wait(ap, bits, 1000);
if (status & bits)
- if (ata_msg_err(ap))
- printk(KERN_ERR "abnormal status 0x%X\n", status);
+ DPRINTK("abnormal status 0x%X\n", status);
/* get controller status; clear intr, err bits */
if (ap->flags & ATA_FLAG_MMIO) {
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);
+ VPRINTK("irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",
+ host_stat, post_stat, status);
return status;
}
static inline unsigned int ac_err_mask(u8 status)
{
if (status & ATA_BUSY)
- return AC_ERR_HSM;
+ return AC_ERR_ATA_BUS;
if (status & (ATA_ERR | ATA_DF))
return AC_ERR_DEV;
return 0;
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