1#ifndef _IDE_H
2#define _IDE_H
3
4
5
6
7
8
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/device.h>
18#include <linux/pci.h>
19#include <linux/completion.h>
20#include <linux/pm.h>
21#ifdef CONFIG_BLK_DEV_IDEACPI
22#include <acpi/acpi.h>
23#endif
24#include <asm/byteorder.h>
25#include <asm/system.h>
26#include <asm/io.h>
27#include <asm/mutex.h>
28
29
30#include <linux/cdrom.h>
31
32#if defined(CONFIG_CRIS) || defined(CONFIG_FRV) || defined(CONFIG_MN10300)
33# define SUPPORT_VLB_SYNC 0
34#else
35# define SUPPORT_VLB_SYNC 1
36#endif
37
38
39
40
41#define IDE_DEFAULT_MAX_FAILURES 1
42#define ERROR_MAX 8
43#define ERROR_RESET 3
44#define ERROR_RECAL 1
45
46
47enum {
48 IDE_DRV_ERROR_GENERAL = 101,
49 IDE_DRV_ERROR_FILEMARK = 102,
50 IDE_DRV_ERROR_EOD = 103,
51};
52
53
54
55
56#define IDE_NR_PORTS (10)
57
58struct ide_io_ports {
59 unsigned long data_addr;
60
61 union {
62 unsigned long error_addr;
63 unsigned long feature_addr;
64 };
65
66 unsigned long nsect_addr;
67 unsigned long lbal_addr;
68 unsigned long lbam_addr;
69 unsigned long lbah_addr;
70
71 unsigned long device_addr;
72
73 union {
74 unsigned long status_addr;
75 unsigned long command_addr;
76 };
77
78 unsigned long ctl_addr;
79
80 unsigned long irq_addr;
81};
82
83#define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good))
84
85#define BAD_R_STAT (ATA_BUSY | ATA_ERR)
86#define BAD_W_STAT (BAD_R_STAT | ATA_DF)
87#define BAD_STAT (BAD_R_STAT | ATA_DRQ)
88#define DRIVE_READY (ATA_DRDY | ATA_DSC)
89
90#define BAD_CRC (ATA_ABORTED | ATA_ICRC)
91
92#define SATA_NR_PORTS (3)
93
94#define SATA_STATUS_OFFSET (0)
95#define SATA_ERROR_OFFSET (1)
96#define SATA_CONTROL_OFFSET (2)
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114#define PRD_BYTES 8
115#define PRD_ENTRIES 256
116
117
118
119
120#define PARTN_BITS 6
121#define MAX_DRIVES 2
122#define SECTOR_SIZE 512
123
124
125
126
127enum {
128
129 WAIT_DRQ = HZ / 10,
130
131 WAIT_READY = 5 * HZ,
132
133 WAIT_PIDENTIFY = 10 * HZ,
134
135 WAIT_WORSTCASE = 30 * HZ,
136
137 WAIT_CMD = 10 * HZ,
138
139 WAIT_FLOPPY_CMD = 50 * HZ,
140
141
142
143
144
145 WAIT_TAPE_CMD = 900 * HZ,
146
147 WAIT_MIN_SLEEP = HZ / 50,
148};
149
150
151
152
153
154#define REQ_DRIVE_RESET 0x20
155#define REQ_DEVSET_EXEC 0x21
156#define REQ_PARK_HEADS 0x22
157#define REQ_UNPARK_HEADS 0x23
158
159
160
161
162
163enum { ide_unknown, ide_generic, ide_pci,
164 ide_cmd640, ide_dtc2278, ide_ali14xx,
165 ide_qd65xx, ide_umc8672, ide_ht6560b,
166 ide_4drives, ide_pmac, ide_acorn,
167 ide_au1xxx, ide_palm3710
168};
169
170typedef u8 hwif_chipset_t;
171
172
173
174
175struct ide_hw {
176 union {
177 struct ide_io_ports io_ports;
178 unsigned long io_ports_array[IDE_NR_PORTS];
179 };
180
181 int irq;
182 struct device *dev, *parent;
183 unsigned long config;
184};
185
186static inline void ide_std_init_ports(struct ide_hw *hw,
187 unsigned long io_addr,
188 unsigned long ctl_addr)
189{
190 unsigned int i;
191
192 for (i = 0; i <= 7; i++)
193 hw->io_ports_array[i] = io_addr++;
194
195 hw->io_ports.ctl_addr = ctl_addr;
196}
197
198#define MAX_HWIFS 10
199
200
201
202
203
204#define ide_scsi 0x21
205#define ide_disk 0x20
206#define ide_optical 0x7
207#define ide_cdrom 0x5
208#define ide_tape 0x1
209#define ide_floppy 0x0
210
211
212
213
214enum {
215 IDE_SFLAG_SET_GEOMETRY = (1 << 0),
216 IDE_SFLAG_RECALIBRATE = (1 << 1),
217 IDE_SFLAG_SET_MULTMODE = (1 << 2),
218};
219
220
221
222
223typedef enum {
224 ide_stopped,
225 ide_started,
226} ide_startstop_t;
227
228enum {
229 IDE_VALID_ERROR = (1 << 1),
230 IDE_VALID_FEATURE = IDE_VALID_ERROR,
231 IDE_VALID_NSECT = (1 << 2),
232 IDE_VALID_LBAL = (1 << 3),
233 IDE_VALID_LBAM = (1 << 4),
234 IDE_VALID_LBAH = (1 << 5),
235 IDE_VALID_DEVICE = (1 << 6),
236 IDE_VALID_LBA = IDE_VALID_LBAL |
237 IDE_VALID_LBAM |
238 IDE_VALID_LBAH,
239 IDE_VALID_OUT_TF = IDE_VALID_FEATURE |
240 IDE_VALID_NSECT |
241 IDE_VALID_LBA,
242 IDE_VALID_IN_TF = IDE_VALID_NSECT |
243 IDE_VALID_LBA,
244 IDE_VALID_OUT_HOB = IDE_VALID_OUT_TF,
245 IDE_VALID_IN_HOB = IDE_VALID_ERROR |
246 IDE_VALID_NSECT |
247 IDE_VALID_LBA,
248};
249
250enum {
251 IDE_TFLAG_LBA48 = (1 << 0),
252 IDE_TFLAG_WRITE = (1 << 1),
253 IDE_TFLAG_CUSTOM_HANDLER = (1 << 2),
254 IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 3),
255
256 IDE_TFLAG_IO_16BIT = (1 << 4),
257
258 IDE_TFLAG_DYN = (1 << 5),
259 IDE_TFLAG_FS = (1 << 6),
260 IDE_TFLAG_MULTI_PIO = (1 << 7),
261 IDE_TFLAG_SET_XFER = (1 << 8),
262};
263
264enum {
265 IDE_FTFLAG_FLAGGED = (1 << 0),
266 IDE_FTFLAG_SET_IN_FLAGS = (1 << 1),
267 IDE_FTFLAG_OUT_DATA = (1 << 2),
268 IDE_FTFLAG_IN_DATA = (1 << 3),
269};
270
271struct ide_taskfile {
272 u8 data;
273 union {
274 u8 error;
275 u8 feature;
276 };
277 u8 nsect;
278 u8 lbal;
279 u8 lbam;
280 u8 lbah;
281 u8 device;
282 union {
283 u8 status;
284 u8 command;
285 };
286};
287
288struct ide_cmd {
289 struct ide_taskfile tf;
290 struct ide_taskfile hob;
291 struct {
292 struct {
293 u8 tf;
294 u8 hob;
295 } out, in;
296 } valid;
297
298 u16 tf_flags;
299 u8 ftf_flags;
300 int protocol;
301
302 int sg_nents;
303 int orig_sg_nents;
304 int sg_dma_direction;
305
306 unsigned int nbytes;
307 unsigned int nleft;
308 unsigned int last_xfer_len;
309
310 struct scatterlist *cursg;
311 unsigned int cursg_ofs;
312
313 struct request *rq;
314};
315
316
317enum {
318
319 PC_FLAG_ABORT = (1 << 0),
320 PC_FLAG_SUPPRESS_ERROR = (1 << 1),
321 PC_FLAG_WAIT_FOR_DSC = (1 << 2),
322 PC_FLAG_DMA_OK = (1 << 3),
323 PC_FLAG_DMA_IN_PROGRESS = (1 << 4),
324 PC_FLAG_DMA_ERROR = (1 << 5),
325 PC_FLAG_WRITING = (1 << 6),
326};
327
328#define ATAPI_WAIT_PC (60 * HZ)
329
330struct ide_atapi_pc {
331
332 u8 c[12];
333
334 int retries;
335 int error;
336
337
338 int req_xfer;
339
340
341 struct request *rq;
342
343 unsigned long flags;
344
345
346
347
348
349 unsigned long timeout;
350};
351
352struct ide_devset;
353struct ide_driver;
354
355#ifdef CONFIG_BLK_DEV_IDEACPI
356struct ide_acpi_drive_link;
357struct ide_acpi_hwif_link;
358#endif
359
360struct ide_drive_s;
361
362struct ide_disk_ops {
363 int (*check)(struct ide_drive_s *, const char *);
364 int (*get_capacity)(struct ide_drive_s *);
365 u64 (*set_capacity)(struct ide_drive_s *, u64);
366 void (*setup)(struct ide_drive_s *);
367 void (*flush)(struct ide_drive_s *);
368 int (*init_media)(struct ide_drive_s *, struct gendisk *);
369 int (*set_doorlock)(struct ide_drive_s *, struct gendisk *,
370 int);
371 ide_startstop_t (*do_request)(struct ide_drive_s *, struct request *,
372 sector_t);
373 int (*ioctl)(struct ide_drive_s *, struct block_device *,
374 fmode_t, unsigned int, unsigned long);
375};
376
377
378enum {
379 IDE_AFLAG_DRQ_INTERRUPT = (1 << 0),
380
381
382
383 IDE_AFLAG_NO_EJECT = (1 << 1),
384
385 IDE_AFLAG_PRE_ATAPI12 = (1 << 2),
386
387 IDE_AFLAG_TOCADDR_AS_BCD = (1 << 3),
388
389 IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 4),
390
391 IDE_AFLAG_TOC_VALID = (1 << 6),
392
393 IDE_AFLAG_DOOR_LOCKED = (1 << 7),
394
395 IDE_AFLAG_NO_SPEED_SELECT = (1 << 8),
396 IDE_AFLAG_VERTOS_300_SSD = (1 << 9),
397 IDE_AFLAG_VERTOS_600_ESD = (1 << 10),
398 IDE_AFLAG_SANYO_3CD = (1 << 11),
399 IDE_AFLAG_FULL_CAPS_PAGE = (1 << 12),
400 IDE_AFLAG_PLAY_AUDIO_OK = (1 << 13),
401 IDE_AFLAG_LE_SPEED_FIELDS = (1 << 14),
402
403
404
405 IDE_AFLAG_CLIK_DRIVE = (1 << 15),
406
407 IDE_AFLAG_ZIP_DRIVE = (1 << 16),
408
409 IDE_AFLAG_SRFP = (1 << 17),
410
411
412 IDE_AFLAG_IGNORE_DSC = (1 << 18),
413
414 IDE_AFLAG_ADDRESS_VALID = (1 << 19),
415
416 IDE_AFLAG_BUSY = (1 << 20),
417
418 IDE_AFLAG_DETECT_BS = (1 << 21),
419
420 IDE_AFLAG_FILEMARK = (1 << 22),
421
422 IDE_AFLAG_MEDIUM_PRESENT = (1 << 23),
423
424 IDE_AFLAG_NO_AUTOCLOSE = (1 << 24),
425};
426
427
428enum {
429
430 IDE_DFLAG_KEEP_SETTINGS = (1 << 0),
431
432 IDE_DFLAG_USING_DMA = (1 << 1),
433
434 IDE_DFLAG_UNMASK = (1 << 2),
435
436 IDE_DFLAG_NOFLUSH = (1 << 3),
437
438 IDE_DFLAG_DSC_OVERLAP = (1 << 4),
439
440 IDE_DFLAG_NICE1 = (1 << 5),
441
442 IDE_DFLAG_PRESENT = (1 << 6),
443
444 IDE_DFLAG_NOHPA = (1 << 7),
445
446 IDE_DFLAG_ID_READ = (1 << 8),
447 IDE_DFLAG_NOPROBE = (1 << 9),
448
449 IDE_DFLAG_REMOVABLE = (1 << 10),
450
451 IDE_DFLAG_ATTACH = (1 << 11),
452 IDE_DFLAG_FORCED_GEOM = (1 << 12),
453
454 IDE_DFLAG_NO_UNMASK = (1 << 13),
455
456 IDE_DFLAG_NO_IO_32BIT = (1 << 14),
457
458 IDE_DFLAG_DOORLOCKING = (1 << 15),
459
460 IDE_DFLAG_NODMA = (1 << 16),
461
462 IDE_DFLAG_BLOCKED = (1 << 17),
463
464 IDE_DFLAG_SLEEPING = (1 << 18),
465 IDE_DFLAG_POST_RESET = (1 << 19),
466 IDE_DFLAG_UDMA33_WARNED = (1 << 20),
467 IDE_DFLAG_LBA48 = (1 << 21),
468
469 IDE_DFLAG_WCACHE = (1 << 22),
470
471 IDE_DFLAG_NOWERR = (1 << 23),
472
473 IDE_DFLAG_DMA_PIO_RETRY = (1 << 24),
474 IDE_DFLAG_LBA = (1 << 25),
475
476 IDE_DFLAG_NO_UNLOAD = (1 << 26),
477
478 IDE_DFLAG_PARKED = (1 << 27),
479 IDE_DFLAG_MEDIA_CHANGED = (1 << 28),
480
481 IDE_DFLAG_WP = (1 << 29),
482 IDE_DFLAG_FORMAT_IN_PROGRESS = (1 << 30),
483 IDE_DFLAG_NIEN_QUIRK = (1 << 31),
484};
485
486struct ide_drive_s {
487 char name[4];
488 char driver_req[10];
489
490 struct request_queue *queue;
491
492 struct request *rq;
493 void *driver_data;
494 u16 *id;
495#ifdef CONFIG_IDE_PROC_FS
496 struct proc_dir_entry *proc;
497 const struct ide_proc_devset *settings;
498#endif
499 struct hwif_s *hwif;
500
501 const struct ide_disk_ops *disk_ops;
502
503 unsigned long dev_flags;
504
505 unsigned long sleep;
506 unsigned long timeout;
507
508 u8 special_flags;
509
510 u8 select;
511 u8 retry_pio;
512 u8 waiting_for_dma;
513 u8 dma;
514
515 u8 init_speed;
516 u8 current_speed;
517 u8 desired_speed;
518 u8 dn;
519 u8 acoustic;
520 u8 media;
521 u8 ready_stat;
522 u8 mult_count;
523 u8 mult_req;
524 u8 io_32bit;
525 u8 bad_wstat;
526 u8 head;
527 u8 sect;
528 u8 bios_head;
529 u8 bios_sect;
530
531
532 u8 pc_delay;
533
534 unsigned int bios_cyl;
535 unsigned int cyl;
536 void *drive_data;
537 unsigned int failures;
538 unsigned int max_failures;
539 u64 probed_capacity;
540 u64 capacity64;
541
542 int lun;
543 int crc_count;
544
545 unsigned long debug_mask;
546
547#ifdef CONFIG_BLK_DEV_IDEACPI
548 struct ide_acpi_drive_link *acpidata;
549#endif
550 struct list_head list;
551 struct device gendev;
552 struct completion gendev_rel_comp;
553
554
555 struct ide_atapi_pc *pc;
556
557
558 struct ide_atapi_pc *failed_pc;
559
560
561 int (*pc_callback)(struct ide_drive_s *, int);
562
563 ide_startstop_t (*irq_handler)(struct ide_drive_s *);
564
565 unsigned long atapi_flags;
566
567 struct ide_atapi_pc request_sense_pc;
568
569
570 bool sense_rq_armed;
571 struct request sense_rq;
572 struct request_sense sense_data;
573};
574
575typedef struct ide_drive_s ide_drive_t;
576
577#define to_ide_device(dev) container_of(dev, ide_drive_t, gendev)
578
579#define to_ide_drv(obj, cont_type) \
580 container_of(obj, struct cont_type, dev)
581
582#define ide_drv_g(disk, cont_type) \
583 container_of((disk)->private_data, struct cont_type, driver)
584
585struct ide_port_info;
586
587struct ide_tp_ops {
588 void (*exec_command)(struct hwif_s *, u8);
589 u8 (*read_status)(struct hwif_s *);
590 u8 (*read_altstatus)(struct hwif_s *);
591 void (*write_devctl)(struct hwif_s *, u8);
592
593 void (*dev_select)(ide_drive_t *);
594 void (*tf_load)(ide_drive_t *, struct ide_taskfile *, u8);
595 void (*tf_read)(ide_drive_t *, struct ide_taskfile *, u8);
596
597 void (*input_data)(ide_drive_t *, struct ide_cmd *,
598 void *, unsigned int);
599 void (*output_data)(ide_drive_t *, struct ide_cmd *,
600 void *, unsigned int);
601};
602
603extern const struct ide_tp_ops default_tp_ops;
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623struct ide_port_ops {
624 void (*init_dev)(ide_drive_t *);
625 void (*set_pio_mode)(ide_drive_t *, const u8);
626 void (*set_dma_mode)(ide_drive_t *, const u8);
627 int (*reset_poll)(ide_drive_t *);
628 void (*pre_reset)(ide_drive_t *);
629 void (*resetproc)(ide_drive_t *);
630 void (*maskproc)(ide_drive_t *, int);
631 void (*quirkproc)(ide_drive_t *);
632 void (*clear_irq)(ide_drive_t *);
633 int (*test_irq)(struct hwif_s *);
634
635 u8 (*mdma_filter)(ide_drive_t *);
636 u8 (*udma_filter)(ide_drive_t *);
637
638 u8 (*cable_detect)(struct hwif_s *);
639};
640
641struct ide_dma_ops {
642 void (*dma_host_set)(struct ide_drive_s *, int);
643 int (*dma_setup)(struct ide_drive_s *, struct ide_cmd *);
644 void (*dma_start)(struct ide_drive_s *);
645 int (*dma_end)(struct ide_drive_s *);
646 int (*dma_test_irq)(struct ide_drive_s *);
647 void (*dma_lost_irq)(struct ide_drive_s *);
648
649 int (*dma_check)(struct ide_drive_s *, struct ide_cmd *);
650 int (*dma_timer_expiry)(struct ide_drive_s *);
651 void (*dma_clear)(struct ide_drive_s *);
652
653
654
655
656 u8 (*dma_sff_read_status)(struct hwif_s *);
657};
658
659enum {
660 IDE_PFLAG_PROBING = (1 << 0),
661};
662
663struct ide_host;
664
665typedef struct hwif_s {
666 struct hwif_s *mate;
667 struct proc_dir_entry *proc;
668
669 struct ide_host *host;
670
671 char name[6];
672
673 struct ide_io_ports io_ports;
674
675 unsigned long sata_scr[SATA_NR_PORTS];
676
677 ide_drive_t *devices[MAX_DRIVES + 1];
678
679 unsigned long port_flags;
680
681 u8 major;
682 u8 index;
683 u8 channel;
684
685 u32 host_flags;
686
687 u8 pio_mask;
688
689 u8 ultra_mask;
690 u8 mwdma_mask;
691 u8 swdma_mask;
692
693 u8 cbl;
694
695 hwif_chipset_t chipset;
696
697 struct device *dev;
698
699 void (*rw_disk)(ide_drive_t *, struct request *);
700
701 const struct ide_tp_ops *tp_ops;
702 const struct ide_port_ops *port_ops;
703 const struct ide_dma_ops *dma_ops;
704
705
706 unsigned int *dmatable_cpu;
707
708 dma_addr_t dmatable_dma;
709
710
711 int prd_max_nents;
712
713 int prd_ent_size;
714
715
716 struct scatterlist *sg_table;
717 int sg_max_nents;
718
719 struct ide_cmd cmd;
720
721 int rqsize;
722 int irq;
723
724 unsigned long dma_base;
725
726 unsigned long config_data;
727 unsigned long select_data;
728
729 unsigned long extra_base;
730 unsigned extra_ports;
731
732 unsigned present : 1;
733 unsigned busy : 1;
734
735 struct device gendev;
736 struct device *portdev;
737
738 struct completion gendev_rel_comp;
739
740 void *hwif_data;
741
742#ifdef CONFIG_BLK_DEV_IDEACPI
743 struct ide_acpi_hwif_link *acpidata;
744#endif
745
746
747 ide_startstop_t (*handler)(ide_drive_t *);
748
749
750 unsigned int polling : 1;
751
752
753 ide_drive_t *cur_dev;
754
755
756 struct request *rq;
757
758
759 struct timer_list timer;
760
761 unsigned long poll_timeout;
762
763 int (*expiry)(ide_drive_t *);
764
765 int req_gen;
766 int req_gen_timer;
767
768 spinlock_t lock;
769} ____cacheline_internodealigned_in_smp ide_hwif_t;
770
771#define MAX_HOST_PORTS 4
772
773struct ide_host {
774 ide_hwif_t *ports[MAX_HOST_PORTS + 1];
775 unsigned int n_ports;
776 struct device *dev[2];
777
778 int (*init_chipset)(struct pci_dev *);
779
780 void (*get_lock)(irq_handler_t, void *);
781 void (*release_lock)(void);
782
783 irq_handler_t irq_handler;
784
785 unsigned long host_flags;
786
787 int irq_flags;
788
789 void *host_priv;
790 ide_hwif_t *cur_port;
791
792
793 volatile unsigned long host_busy;
794};
795
796#define IDE_HOST_BUSY 0
797
798
799
800
801typedef ide_startstop_t (ide_handler_t)(ide_drive_t *);
802typedef int (ide_expiry_t)(ide_drive_t *);
803
804
805typedef void (xfer_func_t)(ide_drive_t *, struct ide_cmd *, void *, unsigned);
806
807extern struct mutex ide_setting_mtx;
808
809
810
811
812
813#define DS_SYNC (1 << 0)
814
815struct ide_devset {
816 int (*get)(ide_drive_t *);
817 int (*set)(ide_drive_t *, int);
818 unsigned int flags;
819};
820
821#define __DEVSET(_flags, _get, _set) { \
822 .flags = _flags, \
823 .get = _get, \
824 .set = _set, \
825}
826
827#define ide_devset_get(name, field) \
828static int get_##name(ide_drive_t *drive) \
829{ \
830 return drive->field; \
831}
832
833#define ide_devset_set(name, field) \
834static int set_##name(ide_drive_t *drive, int arg) \
835{ \
836 drive->field = arg; \
837 return 0; \
838}
839
840#define ide_devset_get_flag(name, flag) \
841static int get_##name(ide_drive_t *drive) \
842{ \
843 return !!(drive->dev_flags & flag); \
844}
845
846#define ide_devset_set_flag(name, flag) \
847static int set_##name(ide_drive_t *drive, int arg) \
848{ \
849 if (arg) \
850 drive->dev_flags |= flag; \
851 else \
852 drive->dev_flags &= ~flag; \
853 return 0; \
854}
855
856#define __IDE_DEVSET(_name, _flags, _get, _set) \
857const struct ide_devset ide_devset_##_name = \
858 __DEVSET(_flags, _get, _set)
859
860#define IDE_DEVSET(_name, _flags, _get, _set) \
861static __IDE_DEVSET(_name, _flags, _get, _set)
862
863#define ide_devset_rw(_name, _func) \
864IDE_DEVSET(_name, 0, get_##_func, set_##_func)
865
866#define ide_devset_w(_name, _func) \
867IDE_DEVSET(_name, 0, NULL, set_##_func)
868
869#define ide_ext_devset_rw(_name, _func) \
870__IDE_DEVSET(_name, 0, get_##_func, set_##_func)
871
872#define ide_ext_devset_rw_sync(_name, _func) \
873__IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func)
874
875#define ide_decl_devset(_name) \
876extern const struct ide_devset ide_devset_##_name
877
878ide_decl_devset(io_32bit);
879ide_decl_devset(keepsettings);
880ide_decl_devset(pio_mode);
881ide_decl_devset(unmaskirq);
882ide_decl_devset(using_dma);
883
884#ifdef CONFIG_IDE_PROC_FS
885
886
887
888
889#define ide_devset_rw_field(_name, _field) \
890ide_devset_get(_name, _field); \
891ide_devset_set(_name, _field); \
892IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
893
894#define ide_devset_rw_flag(_name, _field) \
895ide_devset_get_flag(_name, _field); \
896ide_devset_set_flag(_name, _field); \
897IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
898
899struct ide_proc_devset {
900 const char *name;
901 const struct ide_devset *setting;
902 int min, max;
903 int (*mulf)(ide_drive_t *);
904 int (*divf)(ide_drive_t *);
905};
906
907#define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \
908 .name = __stringify(_name), \
909 .setting = &ide_devset_##_name, \
910 .min = _min, \
911 .max = _max, \
912 .mulf = _mulf, \
913 .divf = _divf, \
914}
915
916#define IDE_PROC_DEVSET(_name, _min, _max) \
917__IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL)
918
919typedef struct {
920 const char *name;
921 mode_t mode;
922 const struct file_operations *proc_fops;
923} ide_proc_entry_t;
924
925void proc_ide_create(void);
926void proc_ide_destroy(void);
927void ide_proc_register_port(ide_hwif_t *);
928void ide_proc_port_register_devices(ide_hwif_t *);
929void ide_proc_unregister_device(ide_drive_t *);
930void ide_proc_unregister_port(ide_hwif_t *);
931void ide_proc_register_driver(ide_drive_t *, struct ide_driver *);
932void ide_proc_unregister_driver(ide_drive_t *, struct ide_driver *);
933
934extern const struct file_operations ide_capacity_proc_fops;
935extern const struct file_operations ide_geometry_proc_fops;
936#else
937static inline void proc_ide_create(void) { ; }
938static inline void proc_ide_destroy(void) { ; }
939static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; }
940static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; }
941static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; }
942static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
943static inline void ide_proc_register_driver(ide_drive_t *drive,
944 struct ide_driver *driver) { ; }
945static inline void ide_proc_unregister_driver(ide_drive_t *drive,
946 struct ide_driver *driver) { ; }
947#endif
948
949enum {
950
951 IDE_DBG_FUNC = (1 << 0),
952
953 IDE_DBG_SENSE = (1 << 1),
954
955 IDE_DBG_PC = (1 << 2),
956
957 IDE_DBG_RQ = (1 << 3),
958
959 IDE_DBG_PROBE = (1 << 4),
960};
961
962
963#define __ide_debug_log(lvl, fmt, args...) \
964{ \
965 if (unlikely(drive->debug_mask & lvl)) \
966 printk(KERN_INFO DRV_NAME ": %s: " fmt "\n", \
967 __func__, ## args); \
968}
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988enum {
989 IDE_PM_START_SUSPEND,
990 IDE_PM_FLUSH_CACHE = IDE_PM_START_SUSPEND,
991 IDE_PM_STANDBY,
992
993 IDE_PM_START_RESUME,
994 IDE_PM_RESTORE_PIO = IDE_PM_START_RESUME,
995 IDE_PM_IDLE,
996 IDE_PM_RESTORE_DMA,
997
998 IDE_PM_COMPLETED,
999};
1000
1001int generic_ide_suspend(struct device *, pm_message_t);
1002int generic_ide_resume(struct device *);
1003
1004void ide_complete_power_step(ide_drive_t *, struct request *);
1005ide_startstop_t ide_start_power_step(ide_drive_t *, struct request *);
1006void ide_complete_pm_rq(ide_drive_t *, struct request *);
1007void ide_check_pm_state(ide_drive_t *, struct request *);
1008
1009
1010
1011
1012
1013
1014
1015struct ide_driver {
1016 const char *version;
1017 ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t);
1018 struct device_driver gen_driver;
1019 int (*probe)(ide_drive_t *);
1020 void (*remove)(ide_drive_t *);
1021 void (*resume)(ide_drive_t *);
1022 void (*shutdown)(ide_drive_t *);
1023#ifdef CONFIG_IDE_PROC_FS
1024 ide_proc_entry_t * (*proc_entries)(ide_drive_t *);
1025 const struct ide_proc_devset * (*proc_devsets)(ide_drive_t *);
1026#endif
1027};
1028
1029#define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver)
1030
1031int ide_device_get(ide_drive_t *);
1032void ide_device_put(ide_drive_t *);
1033
1034struct ide_ioctl_devset {
1035 unsigned int get_ioctl;
1036 unsigned int set_ioctl;
1037 const struct ide_devset *setting;
1038};
1039
1040int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int,
1041 unsigned long, const struct ide_ioctl_devset *);
1042
1043int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned long);
1044
1045extern int ide_vlb_clk;
1046extern int ide_pci_clk;
1047
1048int ide_end_rq(ide_drive_t *, struct request *, int, unsigned int);
1049void ide_kill_rq(ide_drive_t *, struct request *);
1050
1051void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
1052void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
1053
1054void ide_execute_command(ide_drive_t *, struct ide_cmd *, ide_handler_t *,
1055 unsigned int);
1056
1057void ide_pad_transfer(ide_drive_t *, int, int);
1058
1059ide_startstop_t ide_error(ide_drive_t *, const char *, u8);
1060
1061void ide_fix_driveid(u16 *);
1062
1063extern void ide_fixstring(u8 *, const int, const int);
1064
1065int ide_busy_sleep(ide_drive_t *, unsigned long, int);
1066
1067int __ide_wait_stat(ide_drive_t *, u8, u8, unsigned long, u8 *);
1068int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
1069
1070ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *);
1071ide_startstop_t ide_do_devset(ide_drive_t *, struct request *);
1072
1073extern ide_startstop_t ide_do_reset (ide_drive_t *);
1074
1075extern int ide_devset_execute(ide_drive_t *drive,
1076 const struct ide_devset *setting, int arg);
1077
1078void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8);
1079int ide_complete_rq(ide_drive_t *, int, unsigned int);
1080
1081void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd);
1082void ide_tf_dump(const char *, struct ide_cmd *);
1083
1084void ide_exec_command(ide_hwif_t *, u8);
1085u8 ide_read_status(ide_hwif_t *);
1086u8 ide_read_altstatus(ide_hwif_t *);
1087void ide_write_devctl(ide_hwif_t *, u8);
1088
1089void ide_dev_select(ide_drive_t *);
1090void ide_tf_load(ide_drive_t *, struct ide_taskfile *, u8);
1091void ide_tf_read(ide_drive_t *, struct ide_taskfile *, u8);
1092
1093void ide_input_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
1094void ide_output_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
1095
1096void SELECT_MASK(ide_drive_t *, int);
1097
1098u8 ide_read_error(ide_drive_t *);
1099void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *);
1100
1101int ide_check_ireason(ide_drive_t *, struct request *, int, int, int);
1102
1103int ide_check_atapi_device(ide_drive_t *, const char *);
1104
1105void ide_init_pc(struct ide_atapi_pc *);
1106
1107
1108extern wait_queue_head_t ide_park_wq;
1109ssize_t ide_park_show(struct device *dev, struct device_attribute *attr,
1110 char *buf);
1111ssize_t ide_park_store(struct device *dev, struct device_attribute *attr,
1112 const char *buf, size_t len);
1113
1114
1115
1116
1117
1118
1119
1120enum {
1121 REQ_IDETAPE_PC1 = (1 << 0),
1122 REQ_IDETAPE_PC2 = (1 << 1),
1123 REQ_IDETAPE_READ = (1 << 2),
1124 REQ_IDETAPE_WRITE = (1 << 3),
1125};
1126
1127int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *,
1128 void *, unsigned int);
1129
1130int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *);
1131int ide_do_start_stop(ide_drive_t *, struct gendisk *, int);
1132int ide_set_media_lock(ide_drive_t *, struct gendisk *, int);
1133void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *);
1134void ide_retry_pc(ide_drive_t *drive);
1135
1136void ide_prep_sense(ide_drive_t *drive, struct request *rq);
1137int ide_queue_sense_rq(ide_drive_t *drive, void *special);
1138
1139int ide_cd_expiry(ide_drive_t *);
1140
1141int ide_cd_get_xferlen(struct request *);
1142
1143ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_cmd *);
1144
1145ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *);
1146
1147void ide_pio_bytes(ide_drive_t *, struct ide_cmd *, unsigned int, unsigned int);
1148
1149void ide_finish_cmd(ide_drive_t *, struct ide_cmd *, u8);
1150
1151int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16);
1152int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *);
1153
1154int ide_taskfile_ioctl(ide_drive_t *, unsigned long);
1155
1156int ide_dev_read_id(ide_drive_t *, u8, u16 *, int);
1157
1158extern int ide_driveid_update(ide_drive_t *);
1159extern int ide_config_drive_speed(ide_drive_t *, u8);
1160extern u8 eighty_ninty_three (ide_drive_t *);
1161extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *);
1162
1163extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout);
1164
1165extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
1166
1167extern void ide_timer_expiry(unsigned long);
1168extern irqreturn_t ide_intr(int irq, void *dev_id);
1169extern void do_ide_request(struct request_queue *);
1170
1171void ide_init_disk(struct gendisk *, ide_drive_t *);
1172
1173#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
1174extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name);
1175#define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME)
1176#else
1177#define ide_pci_register_driver(d) pci_register_driver(d)
1178#endif
1179
1180static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev)
1181{
1182 if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5)
1183 return 1;
1184 return 0;
1185}
1186
1187void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *,
1188 struct ide_hw *, struct ide_hw **);
1189void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
1190
1191#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
1192int ide_pci_set_master(struct pci_dev *, const char *);
1193unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *);
1194int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *);
1195int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *);
1196#else
1197static inline int ide_hwif_setup_dma(ide_hwif_t *hwif,
1198 const struct ide_port_info *d)
1199{
1200 return -EINVAL;
1201}
1202#endif
1203
1204struct ide_pci_enablebit {
1205 u8 reg;
1206 u8 mask;
1207 u8 val;
1208};
1209
1210enum {
1211
1212 IDE_HFLAG_ISA_PORTS = (1 << 0),
1213
1214 IDE_HFLAG_SINGLE = (1 << 1),
1215
1216 IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2),
1217
1218 IDE_HFLAG_QD_2ND_PORT = (1 << 3),
1219
1220 IDE_HFLAG_ABUSE_PREFETCH = (1 << 4),
1221
1222 IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5),
1223
1224 IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6),
1225
1226
1227
1228
1229 IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7),
1230
1231 IDE_HFLAG_POST_SET_MODE = (1 << 8),
1232
1233 IDE_HFLAG_NO_SET_MODE = (1 << 9),
1234
1235 IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10),
1236
1237 IDE_HFLAG_CS5520 = (1 << 11),
1238
1239 IDE_HFLAG_NO_ATAPI_DMA = (1 << 12),
1240
1241 IDE_HFLAG_NON_BOOTABLE = (1 << 13),
1242
1243 IDE_HFLAG_NO_DMA = (1 << 14),
1244
1245 IDE_HFLAG_NO_AUTODMA = (1 << 15),
1246
1247 IDE_HFLAG_MMIO = (1 << 16),
1248
1249 IDE_HFLAG_NO_LBA48 = (1 << 17),
1250
1251 IDE_HFLAG_NO_LBA48_DMA = (1 << 18),
1252
1253 IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19),
1254
1255 IDE_HFLAG_SERIALIZE = (1 << 20),
1256
1257 IDE_HFLAG_DTC2278 = (1 << 21),
1258
1259 IDE_HFLAG_4DRIVES = (1 << 22),
1260
1261 IDE_HFLAG_TRM290 = (1 << 23),
1262
1263 IDE_HFLAG_IO_32BIT = (1 << 24),
1264
1265 IDE_HFLAG_UNMASK_IRQS = (1 << 25),
1266 IDE_HFLAG_BROKEN_ALTSTATUS = (1 << 26),
1267
1268 IDE_HFLAG_SERIALIZE_DMA = (1 << 27),
1269
1270 IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28),
1271
1272 IDE_HFLAG_NO_DSC = (1 << 29),
1273
1274 IDE_HFLAG_NO_IO_32BIT = (1 << 30),
1275
1276 IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31),
1277};
1278
1279#ifdef CONFIG_BLK_DEV_OFFBOARD
1280# define IDE_HFLAG_OFF_BOARD 0
1281#else
1282# define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE
1283#endif
1284
1285struct ide_port_info {
1286 char *name;
1287
1288 int (*init_chipset)(struct pci_dev *);
1289
1290 void (*get_lock)(irq_handler_t, void *);
1291 void (*release_lock)(void);
1292
1293 void (*init_iops)(ide_hwif_t *);
1294 void (*init_hwif)(ide_hwif_t *);
1295 int (*init_dma)(ide_hwif_t *,
1296 const struct ide_port_info *);
1297
1298 const struct ide_tp_ops *tp_ops;
1299 const struct ide_port_ops *port_ops;
1300 const struct ide_dma_ops *dma_ops;
1301
1302 struct ide_pci_enablebit enablebits[2];
1303
1304 hwif_chipset_t chipset;
1305
1306 u16 max_sectors;
1307
1308 u32 host_flags;
1309
1310 int irq_flags;
1311
1312 u8 pio_mask;
1313 u8 swdma_mask;
1314 u8 mwdma_mask;
1315 u8 udma_mask;
1316};
1317
1318int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *);
1319int ide_pci_init_two(struct pci_dev *, struct pci_dev *,
1320 const struct ide_port_info *, void *);
1321void ide_pci_remove(struct pci_dev *);
1322
1323#ifdef CONFIG_PM
1324int ide_pci_suspend(struct pci_dev *, pm_message_t);
1325int ide_pci_resume(struct pci_dev *);
1326#else
1327#define ide_pci_suspend NULL
1328#define ide_pci_resume NULL
1329#endif
1330
1331void ide_map_sg(ide_drive_t *, struct ide_cmd *);
1332void ide_init_sg_cmd(struct ide_cmd *, unsigned int);
1333
1334#define BAD_DMA_DRIVE 0
1335#define GOOD_DMA_DRIVE 1
1336
1337struct drive_list_entry {
1338 const char *id_model;
1339 const char *id_firmware;
1340};
1341
1342int ide_in_drive_list(u16 *, const struct drive_list_entry *);
1343
1344#ifdef CONFIG_BLK_DEV_IDEDMA
1345int ide_dma_good_drive(ide_drive_t *);
1346int __ide_dma_bad_drive(ide_drive_t *);
1347
1348u8 ide_find_dma_mode(ide_drive_t *, u8);
1349
1350static inline u8 ide_max_dma_mode(ide_drive_t *drive)
1351{
1352 return ide_find_dma_mode(drive, XFER_UDMA_6);
1353}
1354
1355void ide_dma_off_quietly(ide_drive_t *);
1356void ide_dma_off(ide_drive_t *);
1357void ide_dma_on(ide_drive_t *);
1358int ide_set_dma(ide_drive_t *);
1359void ide_check_dma_crc(ide_drive_t *);
1360ide_startstop_t ide_dma_intr(ide_drive_t *);
1361
1362int ide_allocate_dma_engine(ide_hwif_t *);
1363void ide_release_dma_engine(ide_hwif_t *);
1364
1365int ide_dma_prepare(ide_drive_t *, struct ide_cmd *);
1366void ide_dma_unmap_sg(ide_drive_t *, struct ide_cmd *);
1367
1368#ifdef CONFIG_BLK_DEV_IDEDMA_SFF
1369int config_drive_for_dma(ide_drive_t *);
1370int ide_build_dmatable(ide_drive_t *, struct ide_cmd *);
1371void ide_dma_host_set(ide_drive_t *, int);
1372int ide_dma_setup(ide_drive_t *, struct ide_cmd *);
1373extern void ide_dma_start(ide_drive_t *);
1374int ide_dma_end(ide_drive_t *);
1375int ide_dma_test_irq(ide_drive_t *);
1376int ide_dma_sff_timer_expiry(ide_drive_t *);
1377u8 ide_dma_sff_read_status(ide_hwif_t *);
1378extern const struct ide_dma_ops sff_dma_ops;
1379#else
1380static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; }
1381#endif
1382
1383void ide_dma_lost_irq(ide_drive_t *);
1384ide_startstop_t ide_dma_timeout_retry(ide_drive_t *, int);
1385
1386#else
1387static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; }
1388static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; }
1389static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; }
1390static inline void ide_dma_off(ide_drive_t *drive) { ; }
1391static inline void ide_dma_on(ide_drive_t *drive) { ; }
1392static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
1393static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
1394static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
1395static inline ide_startstop_t ide_dma_intr(ide_drive_t *drive) { return ide_stopped; }
1396static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
1397static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
1398static inline int ide_dma_prepare(ide_drive_t *drive,
1399 struct ide_cmd *cmd) { return 1; }
1400static inline void ide_dma_unmap_sg(ide_drive_t *drive,
1401 struct ide_cmd *cmd) { ; }
1402#endif
1403
1404#ifdef CONFIG_BLK_DEV_IDEACPI
1405int ide_acpi_init(void);
1406bool ide_port_acpi(ide_hwif_t *hwif);
1407extern int ide_acpi_exec_tfs(ide_drive_t *drive);
1408extern void ide_acpi_get_timing(ide_hwif_t *hwif);
1409extern void ide_acpi_push_timing(ide_hwif_t *hwif);
1410void ide_acpi_init_port(ide_hwif_t *);
1411void ide_acpi_port_init_devices(ide_hwif_t *);
1412extern void ide_acpi_set_state(ide_hwif_t *hwif, int on);
1413#else
1414static inline int ide_acpi_init(void) { return 0; }
1415static inline bool ide_port_acpi(ide_hwif_t *hwif) { return 0; }
1416static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; }
1417static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; }
1418static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; }
1419static inline void ide_acpi_init_port(ide_hwif_t *hwif) { ; }
1420static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; }
1421static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
1422#endif
1423
1424void ide_register_region(struct gendisk *);
1425void ide_unregister_region(struct gendisk *);
1426
1427void ide_check_nien_quirk_list(ide_drive_t *);
1428void ide_undecoded_slave(ide_drive_t *);
1429
1430void ide_port_apply_params(ide_hwif_t *);
1431int ide_sysfs_register_port(ide_hwif_t *);
1432
1433struct ide_host *ide_host_alloc(const struct ide_port_info *, struct ide_hw **,
1434 unsigned int);
1435void ide_host_free(struct ide_host *);
1436int ide_host_register(struct ide_host *, const struct ide_port_info *,
1437 struct ide_hw **);
1438int ide_host_add(const struct ide_port_info *, struct ide_hw **, unsigned int,
1439 struct ide_host **);
1440void ide_host_remove(struct ide_host *);
1441int ide_legacy_device_add(const struct ide_port_info *, unsigned long);
1442void ide_port_unregister_devices(ide_hwif_t *);
1443void ide_port_scan(ide_hwif_t *);
1444
1445static inline void *ide_get_hwifdata (ide_hwif_t * hwif)
1446{
1447 return hwif->hwif_data;
1448}
1449
1450static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data)
1451{
1452 hwif->hwif_data = data;
1453}
1454
1455extern void ide_toggle_bounce(ide_drive_t *drive, int on);
1456
1457u64 ide_get_lba_addr(struct ide_cmd *, int);
1458u8 ide_dump_status(ide_drive_t *, const char *, u8);
1459
1460struct ide_timing {
1461 u8 mode;
1462 u8 setup;
1463 u16 act8b;
1464 u16 rec8b;
1465 u16 cyc8b;
1466 u16 active;
1467 u16 recover;
1468 u16 cycle;
1469 u16 udma;
1470};
1471
1472enum {
1473 IDE_TIMING_SETUP = (1 << 0),
1474 IDE_TIMING_ACT8B = (1 << 1),
1475 IDE_TIMING_REC8B = (1 << 2),
1476 IDE_TIMING_CYC8B = (1 << 3),
1477 IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B |
1478 IDE_TIMING_CYC8B,
1479 IDE_TIMING_ACTIVE = (1 << 4),
1480 IDE_TIMING_RECOVER = (1 << 5),
1481 IDE_TIMING_CYCLE = (1 << 6),
1482 IDE_TIMING_UDMA = (1 << 7),
1483 IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT |
1484 IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER |
1485 IDE_TIMING_CYCLE | IDE_TIMING_UDMA,
1486};
1487
1488struct ide_timing *ide_timing_find_mode(u8);
1489u16 ide_pio_cycle_time(ide_drive_t *, u8);
1490void ide_timing_merge(struct ide_timing *, struct ide_timing *,
1491 struct ide_timing *, unsigned int);
1492int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int);
1493
1494#ifdef CONFIG_IDE_XFER_MODE
1495int ide_scan_pio_blacklist(char *);
1496const char *ide_xfer_verbose(u8);
1497u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8);
1498int ide_pio_need_iordy(ide_drive_t *, const u8);
1499int ide_set_pio_mode(ide_drive_t *, u8);
1500int ide_set_dma_mode(ide_drive_t *, u8);
1501void ide_set_pio(ide_drive_t *, u8);
1502int ide_set_xfer_rate(ide_drive_t *, u8);
1503#else
1504static inline void ide_set_pio(ide_drive_t *drive, u8 pio) { ; }
1505static inline int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) { return -1; }
1506#endif
1507
1508static inline void ide_set_max_pio(ide_drive_t *drive)
1509{
1510 ide_set_pio(drive, 255);
1511}
1512
1513char *ide_media_string(ide_drive_t *);
1514
1515extern struct device_attribute ide_dev_attrs[];
1516extern struct bus_type ide_bus_type;
1517extern struct class *ide_port_class;
1518
1519static inline void ide_dump_identify(u8 *id)
1520{
1521 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0);
1522}
1523
1524static inline int hwif_to_node(ide_hwif_t *hwif)
1525{
1526 return hwif->dev ? dev_to_node(hwif->dev) : -1;
1527}
1528
1529static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
1530{
1531 ide_drive_t *peer = drive->hwif->devices[(drive->dn ^ 1) & 1];
1532
1533 return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL;
1534}
1535
1536static inline void *ide_get_drivedata(ide_drive_t *drive)
1537{
1538 return drive->drive_data;
1539}
1540
1541static inline void ide_set_drivedata(ide_drive_t *drive, void *data)
1542{
1543 drive->drive_data = data;
1544}
1545
1546#define ide_port_for_each_dev(i, dev, port) \
1547 for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
1548
1549#define ide_port_for_each_present_dev(i, dev, port) \
1550 for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \
1551 if ((dev)->dev_flags & IDE_DFLAG_PRESENT)
1552
1553#define ide_host_for_each_port(i, port, host) \
1554 for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)
1555
1556#endif
1557