4 * linux/include/linux/ide.h
6 * Copyright (C) 1994-2002 Linus Torvalds & authors
9 #include <linux/init.h>
10 #include <linux/ioport.h>
11 #include <linux/ata.h>
12 #include <linux/blkdev.h>
13 #include <linux/proc_fs.h>
14 #include <linux/interrupt.h>
15 #include <linux/bitops.h>
16 #include <linux/bio.h>
17 #include <linux/pci.h>
18 #include <linux/completion.h>
20 #include <linux/mutex.h>
21 #ifdef CONFIG_BLK_DEV_IDEACPI
22 #include <acpi/acpi.h>
24 #include <asm/byteorder.h>
25 #include <asm/system.h>
28 /* for request_sense */
29 #include <linux/cdrom.h>
31 #if defined(CONFIG_CRIS) || defined(CONFIG_FRV) || defined(CONFIG_MN10300)
32 # define SUPPORT_VLB_SYNC 0
34 # define SUPPORT_VLB_SYNC 1
38 * Probably not wise to fiddle with these
40 #define IDE_DEFAULT_MAX_FAILURES 1
41 #define ERROR_MAX 8 /* Max read/write errors per sector */
42 #define ERROR_RESET 3 /* Reset controller every 4th retry */
43 #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */
47 /* Error codes returned in rq->errors to the higher part of the driver. */
49 IDE_DRV_ERROR_GENERAL
= 101,
50 IDE_DRV_ERROR_FILEMARK
= 102,
51 IDE_DRV_ERROR_EOD
= 103,
55 * Definitions for accessing IDE controller registers
57 #define IDE_NR_PORTS (10)
60 unsigned long data_addr
;
63 unsigned long error_addr
; /* read: error */
64 unsigned long feature_addr
; /* write: feature */
67 unsigned long nsect_addr
;
68 unsigned long lbal_addr
;
69 unsigned long lbam_addr
;
70 unsigned long lbah_addr
;
72 unsigned long device_addr
;
75 unsigned long status_addr
; /* read: status */
76 unsigned long command_addr
; /* write: command */
79 unsigned long ctl_addr
;
81 unsigned long irq_addr
;
84 #define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good))
86 #define BAD_R_STAT (ATA_BUSY | ATA_ERR)
87 #define BAD_W_STAT (BAD_R_STAT | ATA_DF)
88 #define BAD_STAT (BAD_R_STAT | ATA_DRQ)
89 #define DRIVE_READY (ATA_DRDY | ATA_DSC)
91 #define BAD_CRC (ATA_ABORTED | ATA_ICRC)
93 #define SATA_NR_PORTS (3) /* 16 possible ?? */
95 #define SATA_STATUS_OFFSET (0)
96 #define SATA_ERROR_OFFSET (1)
97 #define SATA_CONTROL_OFFSET (2)
100 * Our Physical Region Descriptor (PRD) table should be large enough
101 * to handle the biggest I/O request we are likely to see. Since requests
102 * can have no more than 256 sectors, and since the typical blocksize is
103 * two or more sectors, we could get by with a limit of 128 entries here for
104 * the usual worst case. Most requests seem to include some contiguous blocks,
105 * further reducing the number of table entries required.
107 * The driver reverts to PIO mode for individual requests that exceed
108 * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling
109 * 100% of all crazy scenarios here is not necessary.
111 * As it turns out though, we must allocate a full 4KB page for this,
112 * so the two PRD tables (ide0 & ide1) will each get half of that,
113 * allowing each to have about 256 entries (8 bytes each) from this.
116 #define PRD_ENTRIES 256
119 * Some more useful definitions
121 #define PARTN_BITS 6 /* number of minor dev bits for partitions */
122 #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */
123 #define SECTOR_SIZE 512
126 * Timeouts for various operations:
129 /* spec allows up to 20ms, but CF cards and SSD drives need more */
130 WAIT_DRQ
= 1 * HZ
, /* 1s */
131 /* some laptops are very slow */
132 WAIT_READY
= 5 * HZ
, /* 5s */
133 /* should be less than 3ms (?), if all ATAPI CD is closed at boot */
134 WAIT_PIDENTIFY
= 10 * HZ
, /* 10s */
135 /* worst case when spinning up */
136 WAIT_WORSTCASE
= 30 * HZ
, /* 30s */
137 /* maximum wait for an IRQ to happen */
138 WAIT_CMD
= 10 * HZ
, /* 10s */
139 /* Some drives require a longer IRQ timeout. */
140 WAIT_FLOPPY_CMD
= 50 * HZ
, /* 50s */
142 * Some drives (for example, Seagate STT3401A Travan) require a very
143 * long timeout, because they don't return an interrupt or clear their
144 * BSY bit until after the command completes (even retension commands).
146 WAIT_TAPE_CMD
= 900 * HZ
, /* 900s */
147 /* minimum sleep time */
148 WAIT_MIN_SLEEP
= HZ
/ 50, /* 20ms */
152 * Op codes for special requests to be handled by ide_special_rq().
153 * Values should be in the range of 0x20 to 0x3f.
155 #define REQ_DRIVE_RESET 0x20
156 #define REQ_DEVSET_EXEC 0x21
157 #define REQ_PARK_HEADS 0x22
158 #define REQ_UNPARK_HEADS 0x23
161 * hwif_chipset_t is used to keep track of the specific hardware
162 * chipset used by each IDE interface, if known.
164 enum { ide_unknown
, ide_generic
, ide_pci
,
165 ide_cmd640
, ide_dtc2278
, ide_ali14xx
,
166 ide_qd65xx
, ide_umc8672
, ide_ht6560b
,
167 ide_4drives
, ide_pmac
, ide_acorn
,
168 ide_au1xxx
, ide_palm3710
171 typedef u8 hwif_chipset_t
;
174 * Structure to hold all information about the location of this port
178 struct ide_io_ports io_ports
;
179 unsigned long io_ports_array
[IDE_NR_PORTS
];
182 int irq
; /* our irq number */
183 struct device
*dev
, *parent
;
184 unsigned long config
;
187 static inline void ide_std_init_ports(struct ide_hw
*hw
,
188 unsigned long io_addr
,
189 unsigned long ctl_addr
)
193 for (i
= 0; i
<= 7; i
++)
194 hw
->io_ports_array
[i
] = io_addr
++;
196 hw
->io_ports
.ctl_addr
= ctl_addr
;
202 * Now for the data we need to maintain per-drive: ide_drive_t
205 #define ide_scsi 0x21
206 #define ide_disk 0x20
207 #define ide_optical 0x7
208 #define ide_cdrom 0x5
210 #define ide_floppy 0x0
213 * Special Driver Flags
216 IDE_SFLAG_SET_GEOMETRY
= (1 << 0),
217 IDE_SFLAG_RECALIBRATE
= (1 << 1),
218 IDE_SFLAG_SET_MULTMODE
= (1 << 2),
222 * Status returned from various ide_ functions
225 ide_stopped
, /* no drive operation was started */
226 ide_started
, /* a drive operation was started, handler was set */
230 IDE_VALID_ERROR
= (1 << 1),
231 IDE_VALID_FEATURE
= IDE_VALID_ERROR
,
232 IDE_VALID_NSECT
= (1 << 2),
233 IDE_VALID_LBAL
= (1 << 3),
234 IDE_VALID_LBAM
= (1 << 4),
235 IDE_VALID_LBAH
= (1 << 5),
236 IDE_VALID_DEVICE
= (1 << 6),
237 IDE_VALID_LBA
= IDE_VALID_LBAL
|
240 IDE_VALID_OUT_TF
= IDE_VALID_FEATURE
|
243 IDE_VALID_IN_TF
= IDE_VALID_NSECT
|
245 IDE_VALID_OUT_HOB
= IDE_VALID_OUT_TF
,
246 IDE_VALID_IN_HOB
= IDE_VALID_ERROR
|
252 IDE_TFLAG_LBA48
= (1 << 0),
253 IDE_TFLAG_WRITE
= (1 << 1),
254 IDE_TFLAG_CUSTOM_HANDLER
= (1 << 2),
255 IDE_TFLAG_DMA_PIO_FALLBACK
= (1 << 3),
256 /* force 16-bit I/O operations */
257 IDE_TFLAG_IO_16BIT
= (1 << 4),
258 /* struct ide_cmd was allocated using kmalloc() */
259 IDE_TFLAG_DYN
= (1 << 5),
260 IDE_TFLAG_FS
= (1 << 6),
261 IDE_TFLAG_MULTI_PIO
= (1 << 7),
262 IDE_TFLAG_SET_XFER
= (1 << 8),
266 IDE_FTFLAG_FLAGGED
= (1 << 0),
267 IDE_FTFLAG_SET_IN_FLAGS
= (1 << 1),
268 IDE_FTFLAG_OUT_DATA
= (1 << 2),
269 IDE_FTFLAG_IN_DATA
= (1 << 3),
272 struct ide_taskfile
{
273 u8 data
; /* 0: data byte (for TASKFILE ioctl) */
275 u8 error
; /* read: error */
276 u8 feature
; /* write: feature */
278 u8 nsect
; /* 2: number of sectors */
279 u8 lbal
; /* 3: LBA low */
280 u8 lbam
; /* 4: LBA mid */
281 u8 lbah
; /* 5: LBA high */
282 u8 device
; /* 6: device select */
284 u8 status
; /* read: status */
285 u8 command
; /* write: command */
290 struct ide_taskfile tf
;
291 struct ide_taskfile hob
;
300 u8 ftf_flags
; /* for TASKFILE ioctl */
303 int sg_nents
; /* number of sg entries */
305 int sg_dma_direction
; /* DMA transfer direction */
309 unsigned int last_xfer_len
;
311 struct scatterlist
*cursg
;
312 unsigned int cursg_ofs
;
314 struct request
*rq
; /* copy of request */
317 /* ATAPI packet command flags */
319 /* set when an error is considered normal - no retry (ide-tape) */
320 PC_FLAG_ABORT
= (1 << 0),
321 PC_FLAG_SUPPRESS_ERROR
= (1 << 1),
322 PC_FLAG_WAIT_FOR_DSC
= (1 << 2),
323 PC_FLAG_DMA_OK
= (1 << 3),
324 PC_FLAG_DMA_IN_PROGRESS
= (1 << 4),
325 PC_FLAG_DMA_ERROR
= (1 << 5),
326 PC_FLAG_WRITING
= (1 << 6),
329 #define ATAPI_WAIT_PC (60 * HZ)
331 struct ide_atapi_pc
{
332 /* actual packet bytes */
334 /* incremented on each retry */
338 /* bytes to transfer */
341 /* the corresponding request */
347 * those are more or less driver-specific and some of them are subject
348 * to change/removal later.
350 unsigned long timeout
;
356 #ifdef CONFIG_BLK_DEV_IDEACPI
357 struct ide_acpi_drive_link
;
358 struct ide_acpi_hwif_link
;
363 struct ide_disk_ops
{
364 int (*check
)(struct ide_drive_s
*, const char *);
365 int (*get_capacity
)(struct ide_drive_s
*);
366 void (*unlock_native_capacity
)(struct ide_drive_s
*);
367 void (*setup
)(struct ide_drive_s
*);
368 void (*flush
)(struct ide_drive_s
*);
369 int (*init_media
)(struct ide_drive_s
*, struct gendisk
*);
370 int (*set_doorlock
)(struct ide_drive_s
*, struct gendisk
*,
372 ide_startstop_t (*do_request
)(struct ide_drive_s
*, struct request
*,
374 int (*ioctl
)(struct ide_drive_s
*, struct block_device
*,
375 fmode_t
, unsigned int, unsigned long);
378 /* ATAPI device flags */
380 IDE_AFLAG_DRQ_INTERRUPT
= (1 << 0),
383 /* Drive cannot eject the disc. */
384 IDE_AFLAG_NO_EJECT
= (1 << 1),
385 /* Drive is a pre ATAPI 1.2 drive. */
386 IDE_AFLAG_PRE_ATAPI12
= (1 << 2),
387 /* TOC addresses are in BCD. */
388 IDE_AFLAG_TOCADDR_AS_BCD
= (1 << 3),
389 /* TOC track numbers are in BCD. */
390 IDE_AFLAG_TOCTRACKS_AS_BCD
= (1 << 4),
391 /* Saved TOC information is current. */
392 IDE_AFLAG_TOC_VALID
= (1 << 6),
393 /* We think that the drive door is locked. */
394 IDE_AFLAG_DOOR_LOCKED
= (1 << 7),
395 /* SET_CD_SPEED command is unsupported. */
396 IDE_AFLAG_NO_SPEED_SELECT
= (1 << 8),
397 IDE_AFLAG_VERTOS_300_SSD
= (1 << 9),
398 IDE_AFLAG_VERTOS_600_ESD
= (1 << 10),
399 IDE_AFLAG_SANYO_3CD
= (1 << 11),
400 IDE_AFLAG_FULL_CAPS_PAGE
= (1 << 12),
401 IDE_AFLAG_PLAY_AUDIO_OK
= (1 << 13),
402 IDE_AFLAG_LE_SPEED_FIELDS
= (1 << 14),
405 /* Avoid commands not supported in Clik drive */
406 IDE_AFLAG_CLIK_DRIVE
= (1 << 15),
407 /* Requires BH algorithm for packets */
408 IDE_AFLAG_ZIP_DRIVE
= (1 << 16),
409 /* Supports format progress report */
410 IDE_AFLAG_SRFP
= (1 << 17),
413 IDE_AFLAG_IGNORE_DSC
= (1 << 18),
414 /* 0 When the tape position is unknown */
415 IDE_AFLAG_ADDRESS_VALID
= (1 << 19),
416 /* Device already opened */
417 IDE_AFLAG_BUSY
= (1 << 20),
418 /* Attempt to auto-detect the current user block size */
419 IDE_AFLAG_DETECT_BS
= (1 << 21),
420 /* Currently on a filemark */
421 IDE_AFLAG_FILEMARK
= (1 << 22),
422 /* 0 = no tape is loaded, so we don't rewind after ejecting */
423 IDE_AFLAG_MEDIUM_PRESENT
= (1 << 23),
425 IDE_AFLAG_NO_AUTOCLOSE
= (1 << 24),
430 /* restore settings after device reset */
431 IDE_DFLAG_KEEP_SETTINGS
= (1 << 0),
432 /* device is using DMA for read/write */
433 IDE_DFLAG_USING_DMA
= (1 << 1),
434 /* okay to unmask other IRQs */
435 IDE_DFLAG_UNMASK
= (1 << 2),
436 /* don't attempt flushes */
437 IDE_DFLAG_NOFLUSH
= (1 << 3),
439 IDE_DFLAG_DSC_OVERLAP
= (1 << 4),
440 /* give potential excess bandwidth */
441 IDE_DFLAG_NICE1
= (1 << 5),
442 /* device is physically present */
443 IDE_DFLAG_PRESENT
= (1 << 6),
444 /* disable Host Protected Area */
445 IDE_DFLAG_NOHPA
= (1 << 7),
446 /* id read from device (synthetic if not set) */
447 IDE_DFLAG_ID_READ
= (1 << 8),
448 IDE_DFLAG_NOPROBE
= (1 << 9),
449 /* need to do check_media_change() */
450 IDE_DFLAG_REMOVABLE
= (1 << 10),
451 /* needed for removable devices */
452 IDE_DFLAG_ATTACH
= (1 << 11),
453 IDE_DFLAG_FORCED_GEOM
= (1 << 12),
454 /* disallow setting unmask bit */
455 IDE_DFLAG_NO_UNMASK
= (1 << 13),
456 /* disallow enabling 32-bit I/O */
457 IDE_DFLAG_NO_IO_32BIT
= (1 << 14),
458 /* for removable only: door lock/unlock works */
459 IDE_DFLAG_DOORLOCKING
= (1 << 15),
461 IDE_DFLAG_NODMA
= (1 << 16),
462 /* powermanagement told us not to do anything, so sleep nicely */
463 IDE_DFLAG_BLOCKED
= (1 << 17),
464 /* sleeping & sleep field valid */
465 IDE_DFLAG_SLEEPING
= (1 << 18),
466 IDE_DFLAG_POST_RESET
= (1 << 19),
467 IDE_DFLAG_UDMA33_WARNED
= (1 << 20),
468 IDE_DFLAG_LBA48
= (1 << 21),
469 /* status of write cache */
470 IDE_DFLAG_WCACHE
= (1 << 22),
471 /* used for ignoring ATA_DF */
472 IDE_DFLAG_NOWERR
= (1 << 23),
473 /* retrying in PIO */
474 IDE_DFLAG_DMA_PIO_RETRY
= (1 << 24),
475 IDE_DFLAG_LBA
= (1 << 25),
476 /* don't unload heads */
477 IDE_DFLAG_NO_UNLOAD
= (1 << 26),
478 /* heads unloaded, please don't reset port */
479 IDE_DFLAG_PARKED
= (1 << 27),
480 IDE_DFLAG_MEDIA_CHANGED
= (1 << 28),
482 IDE_DFLAG_WP
= (1 << 29),
483 IDE_DFLAG_FORMAT_IN_PROGRESS
= (1 << 30),
484 IDE_DFLAG_NIEN_QUIRK
= (1 << 31),
488 char name
[4]; /* drive name, such as "hda" */
489 char driver_req
[10]; /* requests specific driver */
491 struct request_queue
*queue
; /* request queue */
493 struct request
*rq
; /* current request */
494 void *driver_data
; /* extra driver data */
495 u16
*id
; /* identification info */
496 #ifdef CONFIG_IDE_PROC_FS
497 struct proc_dir_entry
*proc
; /* /proc/ide/ directory entry */
498 const struct ide_proc_devset
*settings
; /* /proc/ide/ drive settings */
500 struct hwif_s
*hwif
; /* actually (ide_hwif_t *) */
502 const struct ide_disk_ops
*disk_ops
;
504 unsigned long dev_flags
;
506 unsigned long sleep
; /* sleep until this time */
507 unsigned long timeout
; /* max time to wait for irq */
509 u8 special_flags
; /* special action flags */
511 u8 select
; /* basic drive/head select reg value */
512 u8 retry_pio
; /* retrying dma capable host in pio */
513 u8 waiting_for_dma
; /* dma currently in progress */
514 u8 dma
; /* atapi dma flag */
516 u8 init_speed
; /* transfer rate set at boot */
517 u8 current_speed
; /* current transfer rate set */
518 u8 desired_speed
; /* desired transfer rate set */
519 u8 pio_mode
; /* for ->set_pio_mode _only_ */
520 u8 dma_mode
; /* for ->set_dma_mode _only_ */
521 u8 dn
; /* now wide spread use */
522 u8 acoustic
; /* acoustic management */
523 u8 media
; /* disk, cdrom, tape, floppy, ... */
524 u8 ready_stat
; /* min status value for drive ready */
525 u8 mult_count
; /* current multiple sector setting */
526 u8 mult_req
; /* requested multiple sector setting */
527 u8 io_32bit
; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */
528 u8 bad_wstat
; /* used for ignoring ATA_DF */
529 u8 head
; /* "real" number of heads */
530 u8 sect
; /* "real" sectors per track */
531 u8 bios_head
; /* BIOS/fdisk/LILO number of heads */
532 u8 bios_sect
; /* BIOS/fdisk/LILO sectors per track */
534 /* delay this long before sending packet command */
537 unsigned int bios_cyl
; /* BIOS/fdisk/LILO number of cyls */
538 unsigned int cyl
; /* "real" number of cyls */
539 void *drive_data
; /* used by set_pio_mode/dev_select() */
540 unsigned int failures
; /* current failure count */
541 unsigned int max_failures
; /* maximum allowed failure count */
542 u64 probed_capacity
;/* initial/native media capacity */
543 u64 capacity64
; /* total number of sectors */
545 int lun
; /* logical unit */
546 int crc_count
; /* crc counter to reduce drive speed */
548 unsigned long debug_mask
; /* debugging levels switch */
550 #ifdef CONFIG_BLK_DEV_IDEACPI
551 struct ide_acpi_drive_link
*acpidata
;
553 struct list_head list
;
554 struct device gendev
;
555 struct completion gendev_rel_comp
; /* to deal with device release() */
557 /* current packet command */
558 struct ide_atapi_pc
*pc
;
560 /* last failed packet command */
561 struct ide_atapi_pc
*failed_pc
;
563 /* callback for packet commands */
564 int (*pc_callback
)(struct ide_drive_s
*, int);
566 ide_startstop_t (*irq_handler
)(struct ide_drive_s
*);
568 unsigned long atapi_flags
;
570 struct ide_atapi_pc request_sense_pc
;
572 /* current sense rq and buffer */
574 struct request sense_rq
;
575 struct request_sense sense_data
;
578 typedef struct ide_drive_s ide_drive_t
;
580 #define to_ide_device(dev) container_of(dev, ide_drive_t, gendev)
582 #define to_ide_drv(obj, cont_type) \
583 container_of(obj, struct cont_type, dev)
585 #define ide_drv_g(disk, cont_type) \
586 container_of((disk)->private_data, struct cont_type, driver)
588 struct ide_port_info
;
591 void (*exec_command
)(struct hwif_s
*, u8
);
592 u8 (*read_status
)(struct hwif_s
*);
593 u8 (*read_altstatus
)(struct hwif_s
*);
594 void (*write_devctl
)(struct hwif_s
*, u8
);
596 void (*dev_select
)(ide_drive_t
*);
597 void (*tf_load
)(ide_drive_t
*, struct ide_taskfile
*, u8
);
598 void (*tf_read
)(ide_drive_t
*, struct ide_taskfile
*, u8
);
600 void (*input_data
)(ide_drive_t
*, struct ide_cmd
*,
601 void *, unsigned int);
602 void (*output_data
)(ide_drive_t
*, struct ide_cmd
*,
603 void *, unsigned int);
606 extern const struct ide_tp_ops default_tp_ops
;
609 * struct ide_port_ops - IDE port operations
611 * @init_dev: host specific initialization of a device
612 * @set_pio_mode: routine to program host for PIO mode
613 * @set_dma_mode: routine to program host for DMA mode
614 * @reset_poll: chipset polling based on hba specifics
615 * @pre_reset: chipset specific changes to default for device-hba resets
616 * @resetproc: routine to reset controller after a disk reset
617 * @maskproc: special host masking for drive selection
618 * @quirkproc: check host's drive quirk list
619 * @clear_irq: clear IRQ
621 * @mdma_filter: filter MDMA modes
622 * @udma_filter: filter UDMA modes
624 * @cable_detect: detect cable type
626 struct ide_port_ops
{
627 void (*init_dev
)(ide_drive_t
*);
628 void (*set_pio_mode
)(struct hwif_s
*, ide_drive_t
*);
629 void (*set_dma_mode
)(struct hwif_s
*, ide_drive_t
*);
630 int (*reset_poll
)(ide_drive_t
*);
631 void (*pre_reset
)(ide_drive_t
*);
632 void (*resetproc
)(ide_drive_t
*);
633 void (*maskproc
)(ide_drive_t
*, int);
634 void (*quirkproc
)(ide_drive_t
*);
635 void (*clear_irq
)(ide_drive_t
*);
636 int (*test_irq
)(struct hwif_s
*);
638 u8 (*mdma_filter
)(ide_drive_t
*);
639 u8 (*udma_filter
)(ide_drive_t
*);
641 u8 (*cable_detect
)(struct hwif_s
*);
645 void (*dma_host_set
)(struct ide_drive_s
*, int);
646 int (*dma_setup
)(struct ide_drive_s
*, struct ide_cmd
*);
647 void (*dma_start
)(struct ide_drive_s
*);
648 int (*dma_end
)(struct ide_drive_s
*);
649 int (*dma_test_irq
)(struct ide_drive_s
*);
650 void (*dma_lost_irq
)(struct ide_drive_s
*);
651 /* below ones are optional */
652 int (*dma_check
)(struct ide_drive_s
*, struct ide_cmd
*);
653 int (*dma_timer_expiry
)(struct ide_drive_s
*);
654 void (*dma_clear
)(struct ide_drive_s
*);
656 * The following method is optional and only required to be
657 * implemented for the SFF-8038i compatible controllers.
659 u8 (*dma_sff_read_status
)(struct hwif_s
*);
663 IDE_PFLAG_PROBING
= (1 << 0),
668 typedef struct hwif_s
{
669 struct hwif_s
*mate
; /* other hwif from same PCI chip */
670 struct proc_dir_entry
*proc
; /* /proc/ide/ directory entry */
672 struct ide_host
*host
;
674 char name
[6]; /* name of interface, eg. "ide0" */
676 struct ide_io_ports io_ports
;
678 unsigned long sata_scr
[SATA_NR_PORTS
];
680 ide_drive_t
*devices
[MAX_DRIVES
+ 1];
682 unsigned long port_flags
;
684 u8 major
; /* our major number */
685 u8 index
; /* 0 for ide0; 1 for ide1; ... */
686 u8 channel
; /* for dual-port chips: 0=primary, 1=secondary */
696 u8 cbl
; /* cable type */
698 hwif_chipset_t chipset
; /* sub-module for tuning.. */
702 void (*rw_disk
)(ide_drive_t
*, struct request
*);
704 const struct ide_tp_ops
*tp_ops
;
705 const struct ide_port_ops
*port_ops
;
706 const struct ide_dma_ops
*dma_ops
;
708 /* dma physical region descriptor table (cpu view) */
709 unsigned int *dmatable_cpu
;
710 /* dma physical region descriptor table (dma view) */
711 dma_addr_t dmatable_dma
;
713 /* maximum number of PRD table entries */
715 /* PRD entry size in bytes */
718 /* Scatter-gather list used to build the above */
719 struct scatterlist
*sg_table
;
720 int sg_max_nents
; /* Maximum number of entries in it */
722 struct ide_cmd cmd
; /* current command */
724 int rqsize
; /* max sectors per request */
725 int irq
; /* our irq number */
727 unsigned long dma_base
; /* base addr for dma ports */
729 unsigned long config_data
; /* for use by chipset-specific code */
730 unsigned long select_data
; /* for use by chipset-specific code */
732 unsigned long extra_base
; /* extra addr for dma ports */
733 unsigned extra_ports
; /* number of extra dma ports */
735 unsigned present
: 1; /* this interface exists */
736 unsigned busy
: 1; /* serializes devices on a port */
738 struct device gendev
;
739 struct device
*portdev
;
741 struct completion gendev_rel_comp
; /* To deal with device release() */
743 void *hwif_data
; /* extra hwif data */
745 #ifdef CONFIG_BLK_DEV_IDEACPI
746 struct ide_acpi_hwif_link
*acpidata
;
749 /* IRQ handler, if active */
750 ide_startstop_t (*handler
)(ide_drive_t
*);
752 /* BOOL: polling active & poll_timeout field valid */
753 unsigned int polling
: 1;
756 ide_drive_t
*cur_dev
;
758 /* current request */
762 struct timer_list timer
;
763 /* timeout value during long polls */
764 unsigned long poll_timeout
;
765 /* queried upon timeouts */
766 int (*expiry
)(ide_drive_t
*);
772 } ____cacheline_internodealigned_in_smp ide_hwif_t
;
774 #define MAX_HOST_PORTS 4
777 ide_hwif_t
*ports
[MAX_HOST_PORTS
+ 1];
778 unsigned int n_ports
;
779 struct device
*dev
[2];
781 int (*init_chipset
)(struct pci_dev
*);
783 void (*get_lock
)(irq_handler_t
, void *);
784 void (*release_lock
)(void);
786 irq_handler_t irq_handler
;
788 unsigned long host_flags
;
793 ide_hwif_t
*cur_port
; /* for hosts requiring serialization */
795 /* used for hosts requiring serialization */
796 volatile unsigned long host_busy
;
799 #define IDE_HOST_BUSY 0
802 * internal ide interrupt handler type
804 typedef ide_startstop_t (ide_handler_t
)(ide_drive_t
*);
805 typedef int (ide_expiry_t
)(ide_drive_t
*);
807 /* used by ide-cd, ide-floppy, etc. */
808 typedef void (xfer_func_t
)(ide_drive_t
*, struct ide_cmd
*, void *, unsigned);
810 extern struct mutex ide_setting_mtx
;
813 * configurable drive settings
816 #define DS_SYNC (1 << 0)
819 int (*get
)(ide_drive_t
*);
820 int (*set
)(ide_drive_t
*, int);
824 #define __DEVSET(_flags, _get, _set) { \
830 #define ide_devset_get(name, field) \
831 static int get_##name(ide_drive_t *drive) \
833 return drive->field; \
836 #define ide_devset_set(name, field) \
837 static int set_##name(ide_drive_t *drive, int arg) \
839 drive->field = arg; \
843 #define ide_devset_get_flag(name, flag) \
844 static int get_##name(ide_drive_t *drive) \
846 return !!(drive->dev_flags & flag); \
849 #define ide_devset_set_flag(name, flag) \
850 static int set_##name(ide_drive_t *drive, int arg) \
853 drive->dev_flags |= flag; \
855 drive->dev_flags &= ~flag; \
859 #define __IDE_DEVSET(_name, _flags, _get, _set) \
860 const struct ide_devset ide_devset_##_name = \
861 __DEVSET(_flags, _get, _set)
863 #define IDE_DEVSET(_name, _flags, _get, _set) \
864 static __IDE_DEVSET(_name, _flags, _get, _set)
866 #define ide_devset_rw(_name, _func) \
867 IDE_DEVSET(_name, 0, get_##_func, set_##_func)
869 #define ide_devset_w(_name, _func) \
870 IDE_DEVSET(_name, 0, NULL, set_##_func)
872 #define ide_ext_devset_rw(_name, _func) \
873 __IDE_DEVSET(_name, 0, get_##_func, set_##_func)
875 #define ide_ext_devset_rw_sync(_name, _func) \
876 __IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func)
878 #define ide_decl_devset(_name) \
879 extern const struct ide_devset ide_devset_##_name
881 ide_decl_devset(io_32bit
);
882 ide_decl_devset(keepsettings
);
883 ide_decl_devset(pio_mode
);
884 ide_decl_devset(unmaskirq
);
885 ide_decl_devset(using_dma
);
887 #ifdef CONFIG_IDE_PROC_FS
889 * /proc/ide interface
892 #define ide_devset_rw_field(_name, _field) \
893 ide_devset_get(_name, _field); \
894 ide_devset_set(_name, _field); \
895 IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
897 #define ide_devset_rw_flag(_name, _field) \
898 ide_devset_get_flag(_name, _field); \
899 ide_devset_set_flag(_name, _field); \
900 IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
902 struct ide_proc_devset
{
904 const struct ide_devset
*setting
;
906 int (*mulf
)(ide_drive_t
*);
907 int (*divf
)(ide_drive_t
*);
910 #define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \
911 .name = __stringify(_name), \
912 .setting = &ide_devset_##_name, \
919 #define IDE_PROC_DEVSET(_name, _min, _max) \
920 __IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL)
925 const struct file_operations
*proc_fops
;
928 void proc_ide_create(void);
929 void proc_ide_destroy(void);
930 void ide_proc_register_port(ide_hwif_t
*);
931 void ide_proc_port_register_devices(ide_hwif_t
*);
932 void ide_proc_unregister_device(ide_drive_t
*);
933 void ide_proc_unregister_port(ide_hwif_t
*);
934 void ide_proc_register_driver(ide_drive_t
*, struct ide_driver
*);
935 void ide_proc_unregister_driver(ide_drive_t
*, struct ide_driver
*);
937 extern const struct file_operations ide_capacity_proc_fops
;
938 extern const struct file_operations ide_geometry_proc_fops
;
940 static inline void proc_ide_create(void) { ; }
941 static inline void proc_ide_destroy(void) { ; }
942 static inline void ide_proc_register_port(ide_hwif_t
*hwif
) { ; }
943 static inline void ide_proc_port_register_devices(ide_hwif_t
*hwif
) { ; }
944 static inline void ide_proc_unregister_device(ide_drive_t
*drive
) { ; }
945 static inline void ide_proc_unregister_port(ide_hwif_t
*hwif
) { ; }
946 static inline void ide_proc_register_driver(ide_drive_t
*drive
,
947 struct ide_driver
*driver
) { ; }
948 static inline void ide_proc_unregister_driver(ide_drive_t
*drive
,
949 struct ide_driver
*driver
) { ; }
953 /* enter/exit functions */
954 IDE_DBG_FUNC
= (1 << 0),
955 /* sense key/asc handling */
956 IDE_DBG_SENSE
= (1 << 1),
957 /* packet commands handling */
958 IDE_DBG_PC
= (1 << 2),
959 /* request handling */
960 IDE_DBG_RQ
= (1 << 3),
961 /* driver probing/setup */
962 IDE_DBG_PROBE
= (1 << 4),
965 /* DRV_NAME has to be defined in the driver before using the macro below */
966 #define __ide_debug_log(lvl, fmt, args...) \
968 if (unlikely(drive->debug_mask & lvl)) \
969 printk(KERN_INFO DRV_NAME ": %s: " fmt "\n", \
970 __func__, ## args); \
974 * Power Management state machine (rq->pm->pm_step).
976 * For each step, the core calls ide_start_power_step() first.
978 * - ide_stopped : In this case, the core calls us back again unless
979 * step have been set to ide_power_state_completed.
980 * - ide_started : In this case, the channel is left busy until an
981 * async event (interrupt) occurs.
982 * Typically, ide_start_power_step() will issue a taskfile request with
985 * Upon reception of the interrupt, the core will call ide_complete_power_step()
986 * with the error code if any. This routine should update the step value
987 * and return. It should not start a new request. The core will call
988 * ide_start_power_step() for the new step value, unless step have been
989 * set to IDE_PM_COMPLETED.
992 IDE_PM_START_SUSPEND
,
993 IDE_PM_FLUSH_CACHE
= IDE_PM_START_SUSPEND
,
997 IDE_PM_RESTORE_PIO
= IDE_PM_START_RESUME
,
1004 int generic_ide_suspend(struct device
*, pm_message_t
);
1005 int generic_ide_resume(struct device
*);
1007 void ide_complete_power_step(ide_drive_t
*, struct request
*);
1008 ide_startstop_t
ide_start_power_step(ide_drive_t
*, struct request
*);
1009 void ide_complete_pm_rq(ide_drive_t
*, struct request
*);
1010 void ide_check_pm_state(ide_drive_t
*, struct request
*);
1013 * Subdrivers support.
1015 * The gendriver.owner field should be set to the module owner of this driver.
1016 * The gendriver.name field should be set to the name of this driver
1019 const char *version
;
1020 ide_startstop_t (*do_request
)(ide_drive_t
*, struct request
*, sector_t
);
1021 struct device_driver gen_driver
;
1022 int (*probe
)(ide_drive_t
*);
1023 void (*remove
)(ide_drive_t
*);
1024 void (*resume
)(ide_drive_t
*);
1025 void (*shutdown
)(ide_drive_t
*);
1026 #ifdef CONFIG_IDE_PROC_FS
1027 ide_proc_entry_t
* (*proc_entries
)(ide_drive_t
*);
1028 const struct ide_proc_devset
* (*proc_devsets
)(ide_drive_t
*);
1032 #define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver)
1034 int ide_device_get(ide_drive_t
*);
1035 void ide_device_put(ide_drive_t
*);
1037 struct ide_ioctl_devset
{
1038 unsigned int get_ioctl
;
1039 unsigned int set_ioctl
;
1040 const struct ide_devset
*setting
;
1043 int ide_setting_ioctl(ide_drive_t
*, struct block_device
*, unsigned int,
1044 unsigned long, const struct ide_ioctl_devset
*);
1046 int generic_ide_ioctl(ide_drive_t
*, struct block_device
*, unsigned, unsigned long);
1048 extern int ide_vlb_clk
;
1049 extern int ide_pci_clk
;
1051 int ide_end_rq(ide_drive_t
*, struct request
*, int, unsigned int);
1052 void ide_kill_rq(ide_drive_t
*, struct request
*);
1054 void __ide_set_handler(ide_drive_t
*, ide_handler_t
*, unsigned int);
1055 void ide_set_handler(ide_drive_t
*, ide_handler_t
*, unsigned int);
1057 void ide_execute_command(ide_drive_t
*, struct ide_cmd
*, ide_handler_t
*,
1060 void ide_pad_transfer(ide_drive_t
*, int, int);
1062 ide_startstop_t
ide_error(ide_drive_t
*, const char *, u8
);
1064 void ide_fix_driveid(u16
*);
1066 extern void ide_fixstring(u8
*, const int, const int);
1068 int ide_busy_sleep(ide_drive_t
*, unsigned long, int);
1070 int __ide_wait_stat(ide_drive_t
*, u8
, u8
, unsigned long, u8
*);
1071 int ide_wait_stat(ide_startstop_t
*, ide_drive_t
*, u8
, u8
, unsigned long);
1073 ide_startstop_t
ide_do_park_unpark(ide_drive_t
*, struct request
*);
1074 ide_startstop_t
ide_do_devset(ide_drive_t
*, struct request
*);
1076 extern ide_startstop_t
ide_do_reset (ide_drive_t
*);
1078 extern int ide_devset_execute(ide_drive_t
*drive
,
1079 const struct ide_devset
*setting
, int arg
);
1081 void ide_complete_cmd(ide_drive_t
*, struct ide_cmd
*, u8
, u8
);
1082 int ide_complete_rq(ide_drive_t
*, int, unsigned int);
1084 void ide_tf_readback(ide_drive_t
*drive
, struct ide_cmd
*cmd
);
1085 void ide_tf_dump(const char *, struct ide_cmd
*);
1087 void ide_exec_command(ide_hwif_t
*, u8
);
1088 u8
ide_read_status(ide_hwif_t
*);
1089 u8
ide_read_altstatus(ide_hwif_t
*);
1090 void ide_write_devctl(ide_hwif_t
*, u8
);
1092 void ide_dev_select(ide_drive_t
*);
1093 void ide_tf_load(ide_drive_t
*, struct ide_taskfile
*, u8
);
1094 void ide_tf_read(ide_drive_t
*, struct ide_taskfile
*, u8
);
1096 void ide_input_data(ide_drive_t
*, struct ide_cmd
*, void *, unsigned int);
1097 void ide_output_data(ide_drive_t
*, struct ide_cmd
*, void *, unsigned int);
1099 void SELECT_MASK(ide_drive_t
*, int);
1101 u8
ide_read_error(ide_drive_t
*);
1102 void ide_read_bcount_and_ireason(ide_drive_t
*, u16
*, u8
*);
1104 int ide_check_ireason(ide_drive_t
*, struct request
*, int, int, int);
1106 int ide_check_atapi_device(ide_drive_t
*, const char *);
1108 void ide_init_pc(struct ide_atapi_pc
*);
1110 /* Disk head parking */
1111 extern wait_queue_head_t ide_park_wq
;
1112 ssize_t
ide_park_show(struct device
*dev
, struct device_attribute
*attr
,
1114 ssize_t
ide_park_store(struct device
*dev
, struct device_attribute
*attr
,
1115 const char *buf
, size_t len
);
1118 * Special requests for ide-tape block device strategy routine.
1120 * In order to service a character device command, we add special requests to
1121 * the tail of our block device request queue and wait for their completion.
1124 REQ_IDETAPE_PC1
= (1 << 0), /* packet command (first stage) */
1125 REQ_IDETAPE_PC2
= (1 << 1), /* packet command (second stage) */
1126 REQ_IDETAPE_READ
= (1 << 2),
1127 REQ_IDETAPE_WRITE
= (1 << 3),
1130 int ide_queue_pc_tail(ide_drive_t
*, struct gendisk
*, struct ide_atapi_pc
*,
1131 void *, unsigned int);
1133 int ide_do_test_unit_ready(ide_drive_t
*, struct gendisk
*);
1134 int ide_do_start_stop(ide_drive_t
*, struct gendisk
*, int);
1135 int ide_set_media_lock(ide_drive_t
*, struct gendisk
*, int);
1136 void ide_create_request_sense_cmd(ide_drive_t
*, struct ide_atapi_pc
*);
1137 void ide_retry_pc(ide_drive_t
*drive
);
1139 void ide_prep_sense(ide_drive_t
*drive
, struct request
*rq
);
1140 int ide_queue_sense_rq(ide_drive_t
*drive
, void *special
);
1142 int ide_cd_expiry(ide_drive_t
*);
1144 int ide_cd_get_xferlen(struct request
*);
1146 ide_startstop_t
ide_issue_pc(ide_drive_t
*, struct ide_cmd
*);
1148 ide_startstop_t
do_rw_taskfile(ide_drive_t
*, struct ide_cmd
*);
1150 void ide_pio_bytes(ide_drive_t
*, struct ide_cmd
*, unsigned int, unsigned int);
1152 void ide_finish_cmd(ide_drive_t
*, struct ide_cmd
*, u8
);
1154 int ide_raw_taskfile(ide_drive_t
*, struct ide_cmd
*, u8
*, u16
);
1155 int ide_no_data_taskfile(ide_drive_t
*, struct ide_cmd
*);
1157 int ide_taskfile_ioctl(ide_drive_t
*, unsigned long);
1159 int ide_dev_read_id(ide_drive_t
*, u8
, u16
*, int);
1161 extern int ide_driveid_update(ide_drive_t
*);
1162 extern int ide_config_drive_speed(ide_drive_t
*, u8
);
1163 extern u8
eighty_ninty_three (ide_drive_t
*);
1164 extern int taskfile_lib_get_identify(ide_drive_t
*drive
, u8
*);
1166 extern int ide_wait_not_busy(ide_hwif_t
*hwif
, unsigned long timeout
);
1168 extern void ide_stall_queue(ide_drive_t
*drive
, unsigned long timeout
);
1170 extern void ide_timer_expiry(unsigned long);
1171 extern irqreturn_t
ide_intr(int irq
, void *dev_id
);
1172 extern void do_ide_request(struct request_queue
*);
1173 extern void ide_requeue_and_plug(ide_drive_t
*drive
, struct request
*rq
);
1175 void ide_init_disk(struct gendisk
*, ide_drive_t
*);
1177 #ifdef CONFIG_IDEPCI_PCIBUS_ORDER
1178 extern int __ide_pci_register_driver(struct pci_driver
*driver
, struct module
*owner
, const char *mod_name
);
1179 #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME)
1181 #define ide_pci_register_driver(d) pci_register_driver(d)
1184 static inline int ide_pci_is_in_compatibility_mode(struct pci_dev
*dev
)
1186 if ((dev
->class >> 8) == PCI_CLASS_STORAGE_IDE
&& (dev
->class & 5) != 5)
1191 void ide_pci_setup_ports(struct pci_dev
*, const struct ide_port_info
*,
1192 struct ide_hw
*, struct ide_hw
**);
1193 void ide_setup_pci_noise(struct pci_dev
*, const struct ide_port_info
*);
1195 #ifdef CONFIG_BLK_DEV_IDEDMA_PCI
1196 int ide_pci_set_master(struct pci_dev
*, const char *);
1197 unsigned long ide_pci_dma_base(ide_hwif_t
*, const struct ide_port_info
*);
1198 int ide_pci_check_simplex(ide_hwif_t
*, const struct ide_port_info
*);
1199 int ide_hwif_setup_dma(ide_hwif_t
*, const struct ide_port_info
*);
1201 static inline int ide_hwif_setup_dma(ide_hwif_t
*hwif
,
1202 const struct ide_port_info
*d
)
1208 struct ide_pci_enablebit
{
1209 u8 reg
; /* byte pci reg holding the enable-bit */
1210 u8 mask
; /* mask to isolate the enable-bit */
1211 u8 val
; /* value of masked reg when "enabled" */
1215 /* Uses ISA control ports not PCI ones. */
1216 IDE_HFLAG_ISA_PORTS
= (1 << 0),
1217 /* single port device */
1218 IDE_HFLAG_SINGLE
= (1 << 1),
1219 /* don't use legacy PIO blacklist */
1220 IDE_HFLAG_PIO_NO_BLACKLIST
= (1 << 2),
1221 /* set for the second port of QD65xx */
1222 IDE_HFLAG_QD_2ND_PORT
= (1 << 3),
1223 /* use PIO8/9 for prefetch off/on */
1224 IDE_HFLAG_ABUSE_PREFETCH
= (1 << 4),
1225 /* use PIO6/7 for fast-devsel off/on */
1226 IDE_HFLAG_ABUSE_FAST_DEVSEL
= (1 << 5),
1227 /* use 100-102 and 200-202 PIO values to set DMA modes */
1228 IDE_HFLAG_ABUSE_DMA_MODES
= (1 << 6),
1230 * keep DMA setting when programming PIO mode, may be used only
1231 * for hosts which have separate PIO and DMA timings (ie. PMAC)
1233 IDE_HFLAG_SET_PIO_MODE_KEEP_DMA
= (1 << 7),
1234 /* program host for the transfer mode after programming device */
1235 IDE_HFLAG_POST_SET_MODE
= (1 << 8),
1236 /* don't program host/device for the transfer mode ("smart" hosts) */
1237 IDE_HFLAG_NO_SET_MODE
= (1 << 9),
1238 /* trust BIOS for programming chipset/device for DMA */
1239 IDE_HFLAG_TRUST_BIOS_FOR_DMA
= (1 << 10),
1240 /* host is CS5510/CS5520 */
1241 IDE_HFLAG_CS5520
= (1 << 11),
1242 /* ATAPI DMA is unsupported */
1243 IDE_HFLAG_NO_ATAPI_DMA
= (1 << 12),
1244 /* set if host is a "non-bootable" controller */
1245 IDE_HFLAG_NON_BOOTABLE
= (1 << 13),
1246 /* host doesn't support DMA */
1247 IDE_HFLAG_NO_DMA
= (1 << 14),
1248 /* check if host is PCI IDE device before allowing DMA */
1249 IDE_HFLAG_NO_AUTODMA
= (1 << 15),
1250 /* host uses MMIO */
1251 IDE_HFLAG_MMIO
= (1 << 16),
1253 IDE_HFLAG_NO_LBA48
= (1 << 17),
1255 IDE_HFLAG_NO_LBA48_DMA
= (1 << 18),
1256 /* data FIFO is cleared by an error */
1257 IDE_HFLAG_ERROR_STOPS_FIFO
= (1 << 19),
1258 /* serialize ports */
1259 IDE_HFLAG_SERIALIZE
= (1 << 20),
1260 /* host is DTC2278 */
1261 IDE_HFLAG_DTC2278
= (1 << 21),
1262 /* 4 devices on a single set of I/O ports */
1263 IDE_HFLAG_4DRIVES
= (1 << 22),
1264 /* host is TRM290 */
1265 IDE_HFLAG_TRM290
= (1 << 23),
1266 /* use 32-bit I/O ops */
1267 IDE_HFLAG_IO_32BIT
= (1 << 24),
1269 IDE_HFLAG_UNMASK_IRQS
= (1 << 25),
1270 IDE_HFLAG_BROKEN_ALTSTATUS
= (1 << 26),
1271 /* serialize ports if DMA is possible (for sl82c105) */
1272 IDE_HFLAG_SERIALIZE_DMA
= (1 << 27),
1273 /* force host out of "simplex" mode */
1274 IDE_HFLAG_CLEAR_SIMPLEX
= (1 << 28),
1275 /* DSC overlap is unsupported */
1276 IDE_HFLAG_NO_DSC
= (1 << 29),
1277 /* never use 32-bit I/O ops */
1278 IDE_HFLAG_NO_IO_32BIT
= (1 << 30),
1279 /* never unmask IRQs */
1280 IDE_HFLAG_NO_UNMASK_IRQS
= (1 << 31),
1283 #ifdef CONFIG_BLK_DEV_OFFBOARD
1284 # define IDE_HFLAG_OFF_BOARD 0
1286 # define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE
1289 struct ide_port_info
{
1292 int (*init_chipset
)(struct pci_dev
*);
1294 void (*get_lock
)(irq_handler_t
, void *);
1295 void (*release_lock
)(void);
1297 void (*init_iops
)(ide_hwif_t
*);
1298 void (*init_hwif
)(ide_hwif_t
*);
1299 int (*init_dma
)(ide_hwif_t
*,
1300 const struct ide_port_info
*);
1302 const struct ide_tp_ops
*tp_ops
;
1303 const struct ide_port_ops
*port_ops
;
1304 const struct ide_dma_ops
*dma_ops
;
1306 struct ide_pci_enablebit enablebits
[2];
1308 hwif_chipset_t chipset
;
1310 u16 max_sectors
; /* if < than the default one */
1322 int ide_pci_init_one(struct pci_dev
*, const struct ide_port_info
*, void *);
1323 int ide_pci_init_two(struct pci_dev
*, struct pci_dev
*,
1324 const struct ide_port_info
*, void *);
1325 void ide_pci_remove(struct pci_dev
*);
1328 int ide_pci_suspend(struct pci_dev
*, pm_message_t
);
1329 int ide_pci_resume(struct pci_dev
*);
1331 #define ide_pci_suspend NULL
1332 #define ide_pci_resume NULL
1335 void ide_map_sg(ide_drive_t
*, struct ide_cmd
*);
1336 void ide_init_sg_cmd(struct ide_cmd
*, unsigned int);
1338 #define BAD_DMA_DRIVE 0
1339 #define GOOD_DMA_DRIVE 1
1341 struct drive_list_entry
{
1342 const char *id_model
;
1343 const char *id_firmware
;
1346 int ide_in_drive_list(u16
*, const struct drive_list_entry
*);
1348 #ifdef CONFIG_BLK_DEV_IDEDMA
1349 int ide_dma_good_drive(ide_drive_t
*);
1350 int __ide_dma_bad_drive(ide_drive_t
*);
1352 u8
ide_find_dma_mode(ide_drive_t
*, u8
);
1354 static inline u8
ide_max_dma_mode(ide_drive_t
*drive
)
1356 return ide_find_dma_mode(drive
, XFER_UDMA_6
);
1359 void ide_dma_off_quietly(ide_drive_t
*);
1360 void ide_dma_off(ide_drive_t
*);
1361 void ide_dma_on(ide_drive_t
*);
1362 int ide_set_dma(ide_drive_t
*);
1363 void ide_check_dma_crc(ide_drive_t
*);
1364 ide_startstop_t
ide_dma_intr(ide_drive_t
*);
1366 int ide_allocate_dma_engine(ide_hwif_t
*);
1367 void ide_release_dma_engine(ide_hwif_t
*);
1369 int ide_dma_prepare(ide_drive_t
*, struct ide_cmd
*);
1370 void ide_dma_unmap_sg(ide_drive_t
*, struct ide_cmd
*);
1372 #ifdef CONFIG_BLK_DEV_IDEDMA_SFF
1373 int config_drive_for_dma(ide_drive_t
*);
1374 int ide_build_dmatable(ide_drive_t
*, struct ide_cmd
*);
1375 void ide_dma_host_set(ide_drive_t
*, int);
1376 int ide_dma_setup(ide_drive_t
*, struct ide_cmd
*);
1377 extern void ide_dma_start(ide_drive_t
*);
1378 int ide_dma_end(ide_drive_t
*);
1379 int ide_dma_test_irq(ide_drive_t
*);
1380 int ide_dma_sff_timer_expiry(ide_drive_t
*);
1381 u8
ide_dma_sff_read_status(ide_hwif_t
*);
1382 extern const struct ide_dma_ops sff_dma_ops
;
1384 static inline int config_drive_for_dma(ide_drive_t
*drive
) { return 0; }
1385 #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */
1387 void ide_dma_lost_irq(ide_drive_t
*);
1388 ide_startstop_t
ide_dma_timeout_retry(ide_drive_t
*, int);
1391 static inline u8
ide_find_dma_mode(ide_drive_t
*drive
, u8 speed
) { return 0; }
1392 static inline u8
ide_max_dma_mode(ide_drive_t
*drive
) { return 0; }
1393 static inline void ide_dma_off_quietly(ide_drive_t
*drive
) { ; }
1394 static inline void ide_dma_off(ide_drive_t
*drive
) { ; }
1395 static inline void ide_dma_on(ide_drive_t
*drive
) { ; }
1396 static inline void ide_dma_verbose(ide_drive_t
*drive
) { ; }
1397 static inline int ide_set_dma(ide_drive_t
*drive
) { return 1; }
1398 static inline void ide_check_dma_crc(ide_drive_t
*drive
) { ; }
1399 static inline ide_startstop_t
ide_dma_intr(ide_drive_t
*drive
) { return ide_stopped
; }
1400 static inline ide_startstop_t
ide_dma_timeout_retry(ide_drive_t
*drive
, int error
) { return ide_stopped
; }
1401 static inline void ide_release_dma_engine(ide_hwif_t
*hwif
) { ; }
1402 static inline int ide_dma_prepare(ide_drive_t
*drive
,
1403 struct ide_cmd
*cmd
) { return 1; }
1404 static inline void ide_dma_unmap_sg(ide_drive_t
*drive
,
1405 struct ide_cmd
*cmd
) { ; }
1406 #endif /* CONFIG_BLK_DEV_IDEDMA */
1408 #ifdef CONFIG_BLK_DEV_IDEACPI
1409 int ide_acpi_init(void);
1410 bool ide_port_acpi(ide_hwif_t
*hwif
);
1411 extern int ide_acpi_exec_tfs(ide_drive_t
*drive
);
1412 extern void ide_acpi_get_timing(ide_hwif_t
*hwif
);
1413 extern void ide_acpi_push_timing(ide_hwif_t
*hwif
);
1414 void ide_acpi_init_port(ide_hwif_t
*);
1415 void ide_acpi_port_init_devices(ide_hwif_t
*);
1416 extern void ide_acpi_set_state(ide_hwif_t
*hwif
, int on
);
1418 static inline int ide_acpi_init(void) { return 0; }
1419 static inline bool ide_port_acpi(ide_hwif_t
*hwif
) { return 0; }
1420 static inline int ide_acpi_exec_tfs(ide_drive_t
*drive
) { return 0; }
1421 static inline void ide_acpi_get_timing(ide_hwif_t
*hwif
) { ; }
1422 static inline void ide_acpi_push_timing(ide_hwif_t
*hwif
) { ; }
1423 static inline void ide_acpi_init_port(ide_hwif_t
*hwif
) { ; }
1424 static inline void ide_acpi_port_init_devices(ide_hwif_t
*hwif
) { ; }
1425 static inline void ide_acpi_set_state(ide_hwif_t
*hwif
, int on
) {}
1428 void ide_register_region(struct gendisk
*);
1429 void ide_unregister_region(struct gendisk
*);
1431 void ide_check_nien_quirk_list(ide_drive_t
*);
1432 void ide_undecoded_slave(ide_drive_t
*);
1434 void ide_port_apply_params(ide_hwif_t
*);
1435 int ide_sysfs_register_port(ide_hwif_t
*);
1437 struct ide_host
*ide_host_alloc(const struct ide_port_info
*, struct ide_hw
**,
1439 void ide_host_free(struct ide_host
*);
1440 int ide_host_register(struct ide_host
*, const struct ide_port_info
*,
1442 int ide_host_add(const struct ide_port_info
*, struct ide_hw
**, unsigned int,
1443 struct ide_host
**);
1444 void ide_host_remove(struct ide_host
*);
1445 int ide_legacy_device_add(const struct ide_port_info
*, unsigned long);
1446 void ide_port_unregister_devices(ide_hwif_t
*);
1447 void ide_port_scan(ide_hwif_t
*);
1449 static inline void *ide_get_hwifdata (ide_hwif_t
* hwif
)
1451 return hwif
->hwif_data
;
1454 static inline void ide_set_hwifdata (ide_hwif_t
* hwif
, void *data
)
1456 hwif
->hwif_data
= data
;
1459 extern void ide_toggle_bounce(ide_drive_t
*drive
, int on
);
1461 u64
ide_get_lba_addr(struct ide_cmd
*, int);
1462 u8
ide_dump_status(ide_drive_t
*, const char *, u8
);
1467 u16 act8b
; /* t2 for 8-bit io */
1468 u16 rec8b
; /* t2i for 8-bit io */
1469 u16 cyc8b
; /* t0 for 8-bit io */
1470 u16 active
; /* t2 or tD */
1471 u16 recover
; /* t2i or tK */
1473 u16 udma
; /* t2CYCTYP/2 */
1477 IDE_TIMING_SETUP
= (1 << 0),
1478 IDE_TIMING_ACT8B
= (1 << 1),
1479 IDE_TIMING_REC8B
= (1 << 2),
1480 IDE_TIMING_CYC8B
= (1 << 3),
1481 IDE_TIMING_8BIT
= IDE_TIMING_ACT8B
| IDE_TIMING_REC8B
|
1483 IDE_TIMING_ACTIVE
= (1 << 4),
1484 IDE_TIMING_RECOVER
= (1 << 5),
1485 IDE_TIMING_CYCLE
= (1 << 6),
1486 IDE_TIMING_UDMA
= (1 << 7),
1487 IDE_TIMING_ALL
= IDE_TIMING_SETUP
| IDE_TIMING_8BIT
|
1488 IDE_TIMING_ACTIVE
| IDE_TIMING_RECOVER
|
1489 IDE_TIMING_CYCLE
| IDE_TIMING_UDMA
,
1492 struct ide_timing
*ide_timing_find_mode(u8
);
1493 u16
ide_pio_cycle_time(ide_drive_t
*, u8
);
1494 void ide_timing_merge(struct ide_timing
*, struct ide_timing
*,
1495 struct ide_timing
*, unsigned int);
1496 int ide_timing_compute(ide_drive_t
*, u8
, struct ide_timing
*, int, int);
1498 #ifdef CONFIG_IDE_XFER_MODE
1499 int ide_scan_pio_blacklist(char *);
1500 const char *ide_xfer_verbose(u8
);
1501 int ide_pio_need_iordy(ide_drive_t
*, const u8
);
1502 int ide_set_pio_mode(ide_drive_t
*, u8
);
1503 int ide_set_dma_mode(ide_drive_t
*, u8
);
1504 void ide_set_pio(ide_drive_t
*, u8
);
1505 int ide_set_xfer_rate(ide_drive_t
*, u8
);
1507 static inline void ide_set_pio(ide_drive_t
*drive
, u8 pio
) { ; }
1508 static inline int ide_set_xfer_rate(ide_drive_t
*drive
, u8 rate
) { return -1; }
1511 static inline void ide_set_max_pio(ide_drive_t
*drive
)
1513 ide_set_pio(drive
, 255);
1516 char *ide_media_string(ide_drive_t
*);
1518 extern struct device_attribute ide_dev_attrs
[];
1519 extern struct bus_type ide_bus_type
;
1520 extern struct class *ide_port_class
;
1522 static inline void ide_dump_identify(u8
*id
)
1524 print_hex_dump(KERN_INFO
, "", DUMP_PREFIX_NONE
, 16, 2, id
, 512, 0);
1527 static inline int hwif_to_node(ide_hwif_t
*hwif
)
1529 return hwif
->dev
? dev_to_node(hwif
->dev
) : -1;
1532 static inline ide_drive_t
*ide_get_pair_dev(ide_drive_t
*drive
)
1534 ide_drive_t
*peer
= drive
->hwif
->devices
[(drive
->dn
^ 1) & 1];
1536 return (peer
->dev_flags
& IDE_DFLAG_PRESENT
) ? peer
: NULL
;
1539 static inline void *ide_get_drivedata(ide_drive_t
*drive
)
1541 return drive
->drive_data
;
1544 static inline void ide_set_drivedata(ide_drive_t
*drive
, void *data
)
1546 drive
->drive_data
= data
;
1549 #define ide_port_for_each_dev(i, dev, port) \
1550 for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
1552 #define ide_port_for_each_present_dev(i, dev, port) \
1553 for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \
1554 if ((dev)->dev_flags & IDE_DFLAG_PRESENT)
1556 #define ide_host_for_each_port(i, port, host) \
1557 for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)