#endif
/*
- * Used to indicate "no IRQ", should be a value that cannot be an IRQ
- * number.
- */
-
-#define IDE_NO_IRQ (-1)
-
-typedef unsigned char byte; /* used everywhere */
-
-/*
* Probably not wise to fiddle with these
*/
+#define IDE_DEFAULT_MAX_FAILURES 1
#define ERROR_MAX 8 /* Max read/write errors per sector */
#define ERROR_RESET 3 /* Reset controller every 4th retry */
#define ERROR_RECAL 1 /* Recalibrate every 2nd retry */
-#define HWIF(drive) ((ide_hwif_t *)((drive)->hwif))
-#define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup))
-
/*
* Definitions for accessing IDE controller registers
*/
#define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */
#define SECTOR_SIZE 512
-#define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t)))
-
/*
* Timeouts for various operations:
*/
enum { ide_unknown, ide_generic, ide_pci,
ide_cmd640, ide_dtc2278, ide_ali14xx,
ide_qd65xx, ide_umc8672, ide_ht6560b,
- ide_rz1000, ide_trm290,
- ide_cmd646, ide_cy82c693, ide_4drives,
- ide_pmac, ide_acorn,
+ ide_4drives, ide_pmac, ide_acorn,
ide_au1xxx, ide_palm3710
};
unsigned long config;
} hw_regs_t;
-void ide_init_port_data(struct hwif_s *, unsigned int);
-void ide_init_port_hw(struct hwif_s *, hw_regs_t *);
-
static inline void ide_std_init_ports(hw_regs_t *hw,
unsigned long io_addr,
unsigned long ctl_addr)
* This is used for several packet commands (not for READ/WRITE commands).
*/
#define IDE_PC_BUFFER_SIZE 256
+#define ATAPI_WAIT_PC (60 * HZ)
struct ide_atapi_pc {
/* actual packet bytes */
struct idetape_bh *bh;
char *b_data;
- /* idescsi only for now */
struct scatterlist *sg;
unsigned int sg_cnt;
- struct scsi_cmnd *scsi_cmd;
- void (*done) (struct scsi_cmnd *);
-
unsigned long timeout;
};
struct ide_devset;
-struct ide_driver_s;
+struct ide_driver;
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_drive_link;
/* ide-cd */
/* Drive cannot eject the disc. */
- IDE_AFLAG_NO_EJECT = (1 << 3),
+ IDE_AFLAG_NO_EJECT = (1 << 1),
/* Drive is a pre ATAPI 1.2 drive. */
- IDE_AFLAG_PRE_ATAPI12 = (1 << 4),
+ IDE_AFLAG_PRE_ATAPI12 = (1 << 2),
/* TOC addresses are in BCD. */
- IDE_AFLAG_TOCADDR_AS_BCD = (1 << 5),
+ IDE_AFLAG_TOCADDR_AS_BCD = (1 << 3),
/* TOC track numbers are in BCD. */
- IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 6),
+ IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 4),
/*
* Drive does not provide data in multiples of SECTOR_SIZE
* when more than one interrupt is needed.
*/
- IDE_AFLAG_LIMIT_NFRAMES = (1 << 7),
- /* Seeking in progress. */
- IDE_AFLAG_SEEKING = (1 << 8),
+ IDE_AFLAG_LIMIT_NFRAMES = (1 << 5),
/* Saved TOC information is current. */
- IDE_AFLAG_TOC_VALID = (1 << 9),
+ IDE_AFLAG_TOC_VALID = (1 << 6),
/* We think that the drive door is locked. */
- IDE_AFLAG_DOOR_LOCKED = (1 << 10),
+ IDE_AFLAG_DOOR_LOCKED = (1 << 7),
/* SET_CD_SPEED command is unsupported. */
- IDE_AFLAG_NO_SPEED_SELECT = (1 << 11),
- IDE_AFLAG_VERTOS_300_SSD = (1 << 12),
- IDE_AFLAG_VERTOS_600_ESD = (1 << 13),
- IDE_AFLAG_SANYO_3CD = (1 << 14),
- IDE_AFLAG_FULL_CAPS_PAGE = (1 << 15),
- IDE_AFLAG_PLAY_AUDIO_OK = (1 << 16),
- IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17),
+ IDE_AFLAG_NO_SPEED_SELECT = (1 << 8),
+ IDE_AFLAG_VERTOS_300_SSD = (1 << 9),
+ IDE_AFLAG_VERTOS_600_ESD = (1 << 10),
+ IDE_AFLAG_SANYO_3CD = (1 << 11),
+ IDE_AFLAG_FULL_CAPS_PAGE = (1 << 12),
+ IDE_AFLAG_PLAY_AUDIO_OK = (1 << 13),
+ IDE_AFLAG_LE_SPEED_FIELDS = (1 << 14),
/* ide-floppy */
/* Avoid commands not supported in Clik drive */
- IDE_AFLAG_CLIK_DRIVE = (1 << 19),
+ IDE_AFLAG_CLIK_DRIVE = (1 << 15),
/* Requires BH algorithm for packets */
- IDE_AFLAG_ZIP_DRIVE = (1 << 20),
+ IDE_AFLAG_ZIP_DRIVE = (1 << 16),
/* Supports format progress report */
- IDE_AFLAG_SRFP = (1 << 22),
+ IDE_AFLAG_SRFP = (1 << 17),
/* ide-tape */
- IDE_AFLAG_IGNORE_DSC = (1 << 23),
+ IDE_AFLAG_IGNORE_DSC = (1 << 18),
/* 0 When the tape position is unknown */
- IDE_AFLAG_ADDRESS_VALID = (1 << 24),
+ IDE_AFLAG_ADDRESS_VALID = (1 << 19),
/* Device already opened */
- IDE_AFLAG_BUSY = (1 << 25),
+ IDE_AFLAG_BUSY = (1 << 20),
/* Attempt to auto-detect the current user block size */
- IDE_AFLAG_DETECT_BS = (1 << 26),
+ IDE_AFLAG_DETECT_BS = (1 << 21),
/* Currently on a filemark */
- IDE_AFLAG_FILEMARK = (1 << 27),
+ IDE_AFLAG_FILEMARK = (1 << 22),
/* 0 = no tape is loaded, so we don't rewind after ejecting */
- IDE_AFLAG_MEDIUM_PRESENT = (1 << 28),
+ IDE_AFLAG_MEDIUM_PRESENT = (1 << 23),
- IDE_AFLAG_NO_AUTOCLOSE = (1 << 29),
+ IDE_AFLAG_NO_AUTOCLOSE = (1 << 24),
};
/* device flags */
IDE_DFLAG_NODMA = (1 << 16),
/* powermanagment told us not to do anything, so sleep nicely */
IDE_DFLAG_BLOCKED = (1 << 17),
- /* ide-scsi emulation */
- IDE_DFLAG_SCSI = (1 << 18),
/* sleeping & sleep field valid */
- IDE_DFLAG_SLEEPING = (1 << 19),
- IDE_DFLAG_POST_RESET = (1 << 20),
- IDE_DFLAG_UDMA33_WARNED = (1 << 21),
- IDE_DFLAG_LBA48 = (1 << 22),
+ IDE_DFLAG_SLEEPING = (1 << 18),
+ IDE_DFLAG_POST_RESET = (1 << 19),
+ IDE_DFLAG_UDMA33_WARNED = (1 << 20),
+ IDE_DFLAG_LBA48 = (1 << 21),
/* status of write cache */
- IDE_DFLAG_WCACHE = (1 << 23),
+ IDE_DFLAG_WCACHE = (1 << 22),
/* used for ignoring ATA_DF */
- IDE_DFLAG_NOWERR = (1 << 24),
+ IDE_DFLAG_NOWERR = (1 << 23),
/* retrying in PIO */
- IDE_DFLAG_DMA_PIO_RETRY = (1 << 25),
- IDE_DFLAG_LBA = (1 << 26),
+ IDE_DFLAG_DMA_PIO_RETRY = (1 << 24),
+ IDE_DFLAG_LBA = (1 << 25),
/* don't unload heads */
- IDE_DFLAG_NO_UNLOAD = (1 << 27),
+ IDE_DFLAG_NO_UNLOAD = (1 << 26),
/* heads unloaded, please don't reset port */
- IDE_DFLAG_PARKED = (1 << 28),
- IDE_DFLAG_MEDIA_CHANGED = (1 << 29),
+ IDE_DFLAG_PARKED = (1 << 27),
+ IDE_DFLAG_MEDIA_CHANGED = (1 << 28),
/* write protect */
- IDE_DFLAG_WP = (1 << 30),
- IDE_DFLAG_FORMAT_IN_PROGRESS = (1 << 31),
+ IDE_DFLAG_WP = (1 << 29),
+ IDE_DFLAG_FORMAT_IN_PROGRESS = (1 << 30),
};
struct ide_drive_s {
struct request_queue *queue; /* request queue */
struct request *rq; /* current request */
- struct ide_drive_s *next; /* circular list of hwgroup drives */
void *driver_data; /* extra driver data */
u16 *id; /* identification info */
#ifdef CONFIG_IDE_PROC_FS
unsigned long dev_flags;
unsigned long sleep; /* sleep until this time */
- unsigned long service_start; /* time we started last request */
- unsigned long service_time; /* service time of last request */
unsigned long timeout; /* max time to wait for irq */
special_t special; /* special action flags */
int (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *,
unsigned int, int);
+ ide_startstop_t (*irq_handler)(struct ide_drive_s *);
+
unsigned long atapi_flags;
struct ide_atapi_pc request_sense_pc;
#define to_ide_device(dev) container_of(dev, ide_drive_t, gendev)
#define to_ide_drv(obj, cont_type) \
- container_of(obj, struct cont_type, kref)
+ container_of(obj, struct cont_type, dev)
#define ide_drv_g(disk, cont_type) \
container_of((disk)->private_data, struct cont_type, driver)
void (*exec_command)(struct hwif_s *, u8);
u8 (*read_status)(struct hwif_s *);
u8 (*read_altstatus)(struct hwif_s *);
- u8 (*read_sff_dma_status)(struct hwif_s *);
void (*set_irq)(struct hwif_s *, int);
int (*dma_test_irq)(struct ide_drive_s *);
void (*dma_lost_irq)(struct ide_drive_s *);
void (*dma_timeout)(struct ide_drive_s *);
+ /*
+ * The following method is optional and only required to be
+ * implemented for the SFF-8038i compatible controllers.
+ */
+ u8 (*dma_sff_read_status)(struct hwif_s *);
};
struct ide_host;
typedef struct hwif_s {
- struct hwif_s *next; /* for linked-list in ide_hwgroup_t */
struct hwif_s *mate; /* other hwif from same PCI chip */
- struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */
struct proc_dir_entry *proc; /* /proc/ide/ directory entry */
struct ide_host *host;
unsigned long sata_scr[SATA_NR_PORTS];
- ide_drive_t drives[MAX_DRIVES]; /* drive info */
+ ide_drive_t *devices[MAX_DRIVES + 1];
u8 major; /* our major number */
u8 index; /* 0 for ide0; 1 for ide1; ... */
unsigned extra_ports; /* number of extra dma ports */
unsigned present : 1; /* this interface exists */
- unsigned serialized : 1; /* serialized all channel operation */
- unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */
- unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */
+ unsigned busy : 1; /* serializes devices on a port */
struct device gendev;
struct device *portdev;
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_hwif_link *acpidata;
#endif
+
+ /* IRQ handler, if active */
+ ide_startstop_t (*handler)(ide_drive_t *);
+
+ /* BOOL: polling active & poll_timeout field valid */
+ unsigned int polling : 1;
+
+ /* current drive */
+ ide_drive_t *cur_dev;
+
+ /* current request */
+ struct request *rq;
+
+ /* failsafe timer */
+ struct timer_list timer;
+ /* timeout value during long polls */
+ unsigned long poll_timeout;
+ /* queried upon timeouts */
+ int (*expiry)(ide_drive_t *);
+
+ int req_gen;
+ int req_gen_timer;
+
+ spinlock_t lock;
} ____cacheline_internodealigned_in_smp ide_hwif_t;
#define MAX_HOST_PORTS 4
struct ide_host {
- ide_hwif_t *ports[MAX_HOST_PORTS];
+ ide_hwif_t *ports[MAX_HOST_PORTS + 1];
unsigned int n_ports;
struct device *dev[2];
unsigned int (*init_chipset)(struct pci_dev *);
unsigned long host_flags;
void *host_priv;
+ ide_hwif_t *cur_port; /* for hosts requiring serialization */
+
+ /* used for hosts requiring serialization */
+ volatile unsigned long host_busy;
};
+#define IDE_HOST_BUSY 0
+
/*
* internal ide interrupt handler type
*/
/* used by ide-cd, ide-floppy, etc. */
typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned);
-typedef struct hwgroup_s {
- /* irq handler, if active */
- ide_startstop_t (*handler)(ide_drive_t *);
-
- /* BOOL: protects all fields below */
- volatile int busy;
- /* BOOL: wake us up on timer expiry */
- unsigned int sleeping : 1;
- /* BOOL: polling active & poll_timeout field valid */
- unsigned int polling : 1;
-
- /* current drive */
- ide_drive_t *drive;
- /* ptr to current hwif in linked-list */
- ide_hwif_t *hwif;
-
- /* current request */
- struct request *rq;
-
- /* failsafe timer */
- struct timer_list timer;
- /* timeout value during long polls */
- unsigned long poll_timeout;
- /* queried upon timeouts */
- int (*expiry)(ide_drive_t *);
-
- int req_gen;
- int req_gen_timer;
-} ide_hwgroup_t;
-
-typedef struct ide_driver_s ide_driver_t;
-
extern struct mutex ide_setting_mtx;
/*
void ide_proc_port_register_devices(ide_hwif_t *);
void ide_proc_unregister_device(ide_drive_t *);
void ide_proc_unregister_port(ide_hwif_t *);
-void ide_proc_register_driver(ide_drive_t *, ide_driver_t *);
-void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *);
+void ide_proc_register_driver(ide_drive_t *, struct ide_driver *);
+void ide_proc_unregister_driver(ide_drive_t *, struct ide_driver *);
read_proc_t proc_ide_read_capacity;
read_proc_t proc_ide_read_geometry;
static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; }
static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; }
static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
-static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
-static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
+static inline void ide_proc_register_driver(ide_drive_t *drive,
+ struct ide_driver *driver) { ; }
+static inline void ide_proc_unregister_driver(ide_drive_t *drive,
+ struct ide_driver *driver) { ; }
#define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0;
#endif
IDE_PM_COMPLETED,
};
+int generic_ide_suspend(struct device *, pm_message_t);
+int generic_ide_resume(struct device *);
+
+void ide_complete_power_step(ide_drive_t *, struct request *);
+ide_startstop_t ide_start_power_step(ide_drive_t *, struct request *);
+void ide_complete_pm_request(ide_drive_t *, struct request *);
+void ide_check_pm_state(ide_drive_t *, struct request *);
+
/*
* Subdrivers support.
*
* The gendriver.owner field should be set to the module owner of this driver.
* The gendriver.name field should be set to the name of this driver
*/
-struct ide_driver_s {
+struct ide_driver {
const char *version;
ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t);
int (*end_request)(ide_drive_t *, int, int);
- ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8);
struct device_driver gen_driver;
int (*probe)(ide_drive_t *);
void (*remove)(ide_drive_t *);
#endif
};
-#define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver)
+#define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver)
int ide_device_get(ide_drive_t *);
void ide_device_put(ide_drive_t *);
void ide_pad_transfer(ide_drive_t *, int, int);
-ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8);
-
-ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat);
+ide_startstop_t ide_error(ide_drive_t *, const char *, u8);
void ide_fix_driveid(u16 *);
void ide_exec_command(ide_hwif_t *, u8);
u8 ide_read_status(ide_hwif_t *);
u8 ide_read_altstatus(ide_hwif_t *);
-u8 ide_read_sff_dma_status(ide_hwif_t *);
void ide_set_irq(ide_hwif_t *, int);
void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *);
void ide_retry_pc(ide_drive_t *, struct gendisk *);
-static inline unsigned long ide_scsi_get_timeout(struct ide_atapi_pc *pc)
-{
- return max_t(unsigned long, WAIT_CMD, pc->timeout - jiffies);
-}
+int ide_cd_expiry(ide_drive_t *);
-int ide_scsi_expiry(ide_drive_t *);
+int ide_cd_get_xferlen(struct request *);
-ide_startstop_t ide_issue_pc(ide_drive_t *, unsigned int, ide_expiry_t *);
+ide_startstop_t ide_issue_pc(ide_drive_t *);
ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *);
}
#endif
-typedef struct ide_pci_enablebit_s {
+struct ide_pci_enablebit {
u8 reg; /* byte pci reg holding the enable-bit */
u8 mask; /* mask to isolate the enable-bit */
u8 val; /* value of masked reg when "enabled" */
-} ide_pci_enablebit_t;
+};
enum {
/* Uses ISA control ports not PCI ones. */
IDE_HFLAG_LEGACY_IRQS = (1 << 21),
/* force use of legacy IRQs */
IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22),
- /* limit LBA48 requests to 256 sectors */
- IDE_HFLAG_RQSIZE_256 = (1 << 23),
+ /* host is TRM290 */
+ IDE_HFLAG_TRM290 = (1 << 23),
/* use 32-bit I/O ops */
IDE_HFLAG_IO_32BIT = (1 << 24),
/* unmask IRQs */
const struct ide_port_ops *port_ops;
const struct ide_dma_ops *dma_ops;
- ide_pci_enablebit_t enablebits[2];
+ struct ide_pci_enablebit enablebits[2];
+
hwif_chipset_t chipset;
+
+ u16 max_sectors; /* if < than the default one */
+
u32 host_flags;
u8 pio_mask;
u8 swdma_mask;
extern void ide_dma_start(ide_drive_t *);
int ide_dma_end(ide_drive_t *);
int ide_dma_test_irq(ide_drive_t *);
+u8 ide_dma_sff_read_status(ide_hwif_t *);
extern const struct ide_dma_ops sff_dma_ops;
#else
static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; }
static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
#endif
-void ide_remove_port_from_hwgroup(ide_hwif_t *);
-void ide_unregister(ide_hwif_t *);
-
void ide_register_region(struct gendisk *);
void ide_unregister_region(struct gendisk *);
void ide_undecoded_slave(ide_drive_t *);
void ide_port_apply_params(ide_hwif_t *);
+int ide_sysfs_register_port(ide_hwif_t *);
struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **);
void ide_host_free(struct ide_host *);
ide_set_pio(drive, 255);
}
-extern spinlock_t ide_lock;
-extern struct mutex ide_cfg_mtx;
-/*
- * Structure locking:
- *
- * ide_cfg_mtx and ide_lock together protect changes to
- * ide_hwif_t->{next,hwgroup}
- * ide_drive_t->next
- *
- * ide_hwgroup_t->busy: ide_lock
- * ide_hwgroup_t->hwif: ide_lock
- * ide_hwif_t->mate: constant, no locking
- * ide_drive_t->hwif: constant, no locking
- */
-
-#define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0)
+char *ide_media_string(ide_drive_t *);
+extern struct device_attribute ide_dev_attrs[];
extern struct bus_type ide_bus_type;
extern struct class *ide_port_class;
static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
{
- ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1];
+ ide_drive_t *peer = drive->hwif->devices[(drive->dn ^ 1) & 1];
return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL;
}
+
+#define ide_port_for_each_dev(i, dev, port) \
+ for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
+
+#define ide_host_for_each_port(i, port, host) \
+ for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)
+
#endif /* _IDE_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff