1
2#ifndef _IDE_H
3#define _IDE_H
4
5
6
7
8
9
10#include <linux/init.h>
11#include <linux/ioport.h>
12#include <linux/ata.h>
13#include <linux/blk-mq.h>
14#include <linux/proc_fs.h>
15#include <linux/interrupt.h>
16#include <linux/bitops.h>
17#include <linux/bio.h>
18#include <linux/pci.h>
19#include <linux/completion.h>
20#include <linux/pm.h>
21#include <linux/mutex.h>
22
23#include <linux/cdrom.h>
24#include <scsi/scsi_cmnd.h>
25#include <asm/byteorder.h>
26#include <asm/io.h>
27
28
29
30
31#define SUPPORT_VLB_SYNC 1
32#define IDE_DEFAULT_MAX_FAILURES 1
33#define ERROR_MAX 8
34#define ERROR_RESET 3
35#define ERROR_RECAL 1
36
37struct device;
38
39
40enum ata_priv_type {
41 ATA_PRIV_MISC,
42 ATA_PRIV_TASKFILE,
43 ATA_PRIV_PC,
44 ATA_PRIV_SENSE,
45 ATA_PRIV_PM_SUSPEND,
46 ATA_PRIV_PM_RESUME,
47};
48
49struct ide_request {
50 struct scsi_request sreq;
51 u8 sense[SCSI_SENSE_BUFFERSIZE];
52 u8 type;
53 void *special;
54};
55
56static inline struct ide_request *ide_req(struct request *rq)
57{
58 return blk_mq_rq_to_pdu(rq);
59}
60
61static inline bool ata_misc_request(struct request *rq)
62{
63 return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_MISC;
64}
65
66static inline bool ata_taskfile_request(struct request *rq)
67{
68 return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_TASKFILE;
69}
70
71static inline bool ata_pc_request(struct request *rq)
72{
73 return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_PC;
74}
75
76static inline bool ata_sense_request(struct request *rq)
77{
78 return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_SENSE;
79}
80
81static inline bool ata_pm_request(struct request *rq)
82{
83 return blk_rq_is_private(rq) &&
84 (ide_req(rq)->type == ATA_PRIV_PM_SUSPEND ||
85 ide_req(rq)->type == ATA_PRIV_PM_RESUME);
86}
87
88
89enum {
90 IDE_DRV_ERROR_GENERAL = 101,
91 IDE_DRV_ERROR_FILEMARK = 102,
92 IDE_DRV_ERROR_EOD = 103,
93};
94
95
96
97
98#define IDE_NR_PORTS (10)
99
100struct ide_io_ports {
101 unsigned long data_addr;
102
103 union {
104 unsigned long error_addr;
105 unsigned long feature_addr;
106 };
107
108 unsigned long nsect_addr;
109 unsigned long lbal_addr;
110 unsigned long lbam_addr;
111 unsigned long lbah_addr;
112
113 unsigned long device_addr;
114
115 union {
116 unsigned long status_addr;
117 unsigned long command_addr;
118 };
119
120 unsigned long ctl_addr;
121
122 unsigned long irq_addr;
123};
124
125#define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good))
126
127#define BAD_R_STAT (ATA_BUSY | ATA_ERR)
128#define BAD_W_STAT (BAD_R_STAT | ATA_DF)
129#define BAD_STAT (BAD_R_STAT | ATA_DRQ)
130#define DRIVE_READY (ATA_DRDY | ATA_DSC)
131
132#define BAD_CRC (ATA_ABORTED | ATA_ICRC)
133
134#define SATA_NR_PORTS (3)
135
136#define SATA_STATUS_OFFSET (0)
137#define SATA_ERROR_OFFSET (1)
138#define SATA_CONTROL_OFFSET (2)
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156#define PRD_BYTES 8
157#define PRD_ENTRIES 256
158
159
160
161
162#define PARTN_BITS 6
163#define MAX_DRIVES 2
164
165
166
167
168enum {
169
170 WAIT_DRQ = 1 * HZ,
171
172 WAIT_READY = 5 * HZ,
173
174 WAIT_PIDENTIFY = 10 * HZ,
175
176 WAIT_WORSTCASE = 30 * HZ,
177
178 WAIT_CMD = 10 * HZ,
179
180 WAIT_FLOPPY_CMD = 50 * HZ,
181
182
183
184
185
186 WAIT_TAPE_CMD = 900 * HZ,
187
188 WAIT_MIN_SLEEP = HZ / 50,
189};
190
191
192
193
194
195#define REQ_DRIVE_RESET 0x20
196#define REQ_DEVSET_EXEC 0x21
197#define REQ_PARK_HEADS 0x22
198#define REQ_UNPARK_HEADS 0x23
199
200
201
202
203
204enum { ide_unknown, ide_generic, ide_pci,
205 ide_cmd640, ide_dtc2278, ide_ali14xx,
206 ide_qd65xx, ide_umc8672, ide_ht6560b,
207 ide_4drives, ide_pmac, ide_acorn,
208 ide_au1xxx, ide_palm3710
209};
210
211typedef u8 hwif_chipset_t;
212
213
214
215
216struct ide_hw {
217 union {
218 struct ide_io_ports io_ports;
219 unsigned long io_ports_array[IDE_NR_PORTS];
220 };
221
222 int irq;
223 struct device *dev, *parent;
224 unsigned long config;
225};
226
227static inline void ide_std_init_ports(struct ide_hw *hw,
228 unsigned long io_addr,
229 unsigned long ctl_addr)
230{
231 unsigned int i;
232
233 for (i = 0; i <= 7; i++)
234 hw->io_ports_array[i] = io_addr++;
235
236 hw->io_ports.ctl_addr = ctl_addr;
237}
238
239#define MAX_HWIFS 10
240
241
242
243
244
245#define ide_scsi 0x21
246#define ide_disk 0x20
247#define ide_optical 0x7
248#define ide_cdrom 0x5
249#define ide_tape 0x1
250#define ide_floppy 0x0
251
252
253
254
255enum {
256 IDE_SFLAG_SET_GEOMETRY = BIT(0),
257 IDE_SFLAG_RECALIBRATE = BIT(1),
258 IDE_SFLAG_SET_MULTMODE = BIT(2),
259};
260
261
262
263
264typedef enum {
265 ide_stopped,
266 ide_started,
267} ide_startstop_t;
268
269enum {
270 IDE_VALID_ERROR = BIT(1),
271 IDE_VALID_FEATURE = IDE_VALID_ERROR,
272 IDE_VALID_NSECT = BIT(2),
273 IDE_VALID_LBAL = BIT(3),
274 IDE_VALID_LBAM = BIT(4),
275 IDE_VALID_LBAH = BIT(5),
276 IDE_VALID_DEVICE = BIT(6),
277 IDE_VALID_LBA = IDE_VALID_LBAL |
278 IDE_VALID_LBAM |
279 IDE_VALID_LBAH,
280 IDE_VALID_OUT_TF = IDE_VALID_FEATURE |
281 IDE_VALID_NSECT |
282 IDE_VALID_LBA,
283 IDE_VALID_IN_TF = IDE_VALID_NSECT |
284 IDE_VALID_LBA,
285 IDE_VALID_OUT_HOB = IDE_VALID_OUT_TF,
286 IDE_VALID_IN_HOB = IDE_VALID_ERROR |
287 IDE_VALID_NSECT |
288 IDE_VALID_LBA,
289};
290
291enum {
292 IDE_TFLAG_LBA48 = BIT(0),
293 IDE_TFLAG_WRITE = BIT(1),
294 IDE_TFLAG_CUSTOM_HANDLER = BIT(2),
295 IDE_TFLAG_DMA_PIO_FALLBACK = BIT(3),
296
297 IDE_TFLAG_IO_16BIT = BIT(4),
298
299 IDE_TFLAG_DYN = BIT(5),
300 IDE_TFLAG_FS = BIT(6),
301 IDE_TFLAG_MULTI_PIO = BIT(7),
302 IDE_TFLAG_SET_XFER = BIT(8),
303};
304
305enum {
306 IDE_FTFLAG_FLAGGED = BIT(0),
307 IDE_FTFLAG_SET_IN_FLAGS = BIT(1),
308 IDE_FTFLAG_OUT_DATA = BIT(2),
309 IDE_FTFLAG_IN_DATA = BIT(3),
310};
311
312struct ide_taskfile {
313 u8 data;
314 union {
315 u8 error;
316 u8 feature;
317 };
318 u8 nsect;
319 u8 lbal;
320 u8 lbam;
321 u8 lbah;
322 u8 device;
323 union {
324 u8 status;
325 u8 command;
326 };
327};
328
329struct ide_cmd {
330 struct ide_taskfile tf;
331 struct ide_taskfile hob;
332 struct {
333 struct {
334 u8 tf;
335 u8 hob;
336 } out, in;
337 } valid;
338
339 u16 tf_flags;
340 u8 ftf_flags;
341 int protocol;
342
343 int sg_nents;
344 int orig_sg_nents;
345 int sg_dma_direction;
346
347 unsigned int nbytes;
348 unsigned int nleft;
349 unsigned int last_xfer_len;
350
351 struct scatterlist *cursg;
352 unsigned int cursg_ofs;
353
354 struct request *rq;
355};
356
357
358enum {
359
360 PC_FLAG_ABORT = BIT(0),
361 PC_FLAG_SUPPRESS_ERROR = BIT(1),
362 PC_FLAG_WAIT_FOR_DSC = BIT(2),
363 PC_FLAG_DMA_OK = BIT(3),
364 PC_FLAG_DMA_IN_PROGRESS = BIT(4),
365 PC_FLAG_DMA_ERROR = BIT(5),
366 PC_FLAG_WRITING = BIT(6),
367};
368
369#define ATAPI_WAIT_PC (60 * HZ)
370
371struct ide_atapi_pc {
372
373 u8 c[12];
374
375 int retries;
376 int error;
377
378
379 int req_xfer;
380
381
382 struct request *rq;
383
384 unsigned long flags;
385
386
387
388
389
390 unsigned long timeout;
391};
392
393struct ide_devset;
394struct ide_driver;
395
396#ifdef CONFIG_BLK_DEV_IDEACPI
397struct ide_acpi_drive_link;
398struct ide_acpi_hwif_link;
399#endif
400
401struct ide_drive_s;
402
403struct ide_disk_ops {
404 int (*check)(struct ide_drive_s *, const char *);
405 int (*get_capacity)(struct ide_drive_s *);
406 void (*unlock_native_capacity)(struct ide_drive_s *);
407 void (*setup)(struct ide_drive_s *);
408 void (*flush)(struct ide_drive_s *);
409 int (*init_media)(struct ide_drive_s *, struct gendisk *);
410 int (*set_doorlock)(struct ide_drive_s *, struct gendisk *,
411 int);
412 ide_startstop_t (*do_request)(struct ide_drive_s *, struct request *,
413 sector_t);
414 int (*ioctl)(struct ide_drive_s *, struct block_device *,
415 fmode_t, unsigned int, unsigned long);
416 int (*compat_ioctl)(struct ide_drive_s *, struct block_device *,
417 fmode_t, unsigned int, unsigned long);
418};
419
420
421enum {
422 IDE_AFLAG_DRQ_INTERRUPT = BIT(0),
423
424
425
426 IDE_AFLAG_NO_EJECT = BIT(1),
427
428 IDE_AFLAG_PRE_ATAPI12 = BIT(2),
429
430 IDE_AFLAG_TOCADDR_AS_BCD = BIT(3),
431
432 IDE_AFLAG_TOCTRACKS_AS_BCD = BIT(4),
433
434 IDE_AFLAG_TOC_VALID = BIT(6),
435
436 IDE_AFLAG_DOOR_LOCKED = BIT(7),
437
438 IDE_AFLAG_NO_SPEED_SELECT = BIT(8),
439 IDE_AFLAG_VERTOS_300_SSD = BIT(9),
440 IDE_AFLAG_VERTOS_600_ESD = BIT(10),
441 IDE_AFLAG_SANYO_3CD = BIT(11),
442 IDE_AFLAG_FULL_CAPS_PAGE = BIT(12),
443 IDE_AFLAG_PLAY_AUDIO_OK = BIT(13),
444 IDE_AFLAG_LE_SPEED_FIELDS = BIT(14),
445
446
447
448 IDE_AFLAG_CLIK_DRIVE = BIT(15),
449
450 IDE_AFLAG_ZIP_DRIVE = BIT(16),
451
452 IDE_AFLAG_SRFP = BIT(17),
453
454
455 IDE_AFLAG_IGNORE_DSC = BIT(18),
456
457 IDE_AFLAG_ADDRESS_VALID = BIT(19),
458
459 IDE_AFLAG_BUSY = BIT(20),
460
461 IDE_AFLAG_DETECT_BS = BIT(21),
462
463 IDE_AFLAG_FILEMARK = BIT(22),
464
465 IDE_AFLAG_MEDIUM_PRESENT = BIT(23),
466
467 IDE_AFLAG_NO_AUTOCLOSE = BIT(24),
468};
469
470
471enum {
472
473 IDE_DFLAG_KEEP_SETTINGS = BIT(0),
474
475 IDE_DFLAG_USING_DMA = BIT(1),
476
477 IDE_DFLAG_UNMASK = BIT(2),
478
479 IDE_DFLAG_NOFLUSH = BIT(3),
480
481 IDE_DFLAG_DSC_OVERLAP = BIT(4),
482
483 IDE_DFLAG_NICE1 = BIT(5),
484
485 IDE_DFLAG_PRESENT = BIT(6),
486
487 IDE_DFLAG_NOHPA = BIT(7),
488
489 IDE_DFLAG_ID_READ = BIT(8),
490 IDE_DFLAG_NOPROBE = BIT(9),
491
492 IDE_DFLAG_REMOVABLE = BIT(10),
493
494 IDE_DFLAG_ATTACH = BIT(11),
495 IDE_DFLAG_FORCED_GEOM = BIT(12),
496
497 IDE_DFLAG_NO_UNMASK = BIT(13),
498
499 IDE_DFLAG_NO_IO_32BIT = BIT(14),
500
501 IDE_DFLAG_DOORLOCKING = BIT(15),
502
503 IDE_DFLAG_NODMA = BIT(16),
504
505 IDE_DFLAG_BLOCKED = BIT(17),
506
507 IDE_DFLAG_SLEEPING = BIT(18),
508 IDE_DFLAG_POST_RESET = BIT(19),
509 IDE_DFLAG_UDMA33_WARNED = BIT(20),
510 IDE_DFLAG_LBA48 = BIT(21),
511
512 IDE_DFLAG_WCACHE = BIT(22),
513
514 IDE_DFLAG_NOWERR = BIT(23),
515
516 IDE_DFLAG_DMA_PIO_RETRY = BIT(24),
517 IDE_DFLAG_LBA = BIT(25),
518
519 IDE_DFLAG_NO_UNLOAD = BIT(26),
520
521 IDE_DFLAG_PARKED = BIT(27),
522 IDE_DFLAG_MEDIA_CHANGED = BIT(28),
523
524 IDE_DFLAG_WP = BIT(29),
525 IDE_DFLAG_FORMAT_IN_PROGRESS = BIT(30),
526 IDE_DFLAG_NIEN_QUIRK = BIT(31),
527};
528
529struct ide_drive_s {
530 char name[4];
531 char driver_req[10];
532
533 struct request_queue *queue;
534
535 bool (*prep_rq)(struct ide_drive_s *, struct request *);
536
537 struct blk_mq_tag_set tag_set;
538
539 struct request *rq;
540 void *driver_data;
541 u16 *id;
542#ifdef CONFIG_IDE_PROC_FS
543 struct proc_dir_entry *proc;
544 const struct ide_proc_devset *settings;
545#endif
546 struct hwif_s *hwif;
547
548 const struct ide_disk_ops *disk_ops;
549
550 unsigned long dev_flags;
551
552 unsigned long sleep;
553 unsigned long timeout;
554
555 u8 special_flags;
556
557 u8 select;
558 u8 retry_pio;
559 u8 waiting_for_dma;
560 u8 dma;
561
562 u8 init_speed;
563 u8 current_speed;
564 u8 desired_speed;
565 u8 pio_mode;
566 u8 dma_mode;
567 u8 dn;
568 u8 acoustic;
569 u8 media;
570 u8 ready_stat;
571 u8 mult_count;
572 u8 mult_req;
573 u8 io_32bit;
574 u8 bad_wstat;
575 u8 head;
576 u8 sect;
577 u8 bios_head;
578 u8 bios_sect;
579
580
581 u8 pc_delay;
582
583 unsigned int bios_cyl;
584 unsigned int cyl;
585 void *drive_data;
586 unsigned int failures;
587 unsigned int max_failures;
588 u64 probed_capacity;
589 u64 capacity64;
590
591 int lun;
592 int crc_count;
593
594 unsigned long debug_mask;
595
596#ifdef CONFIG_BLK_DEV_IDEACPI
597 struct ide_acpi_drive_link *acpidata;
598#endif
599 struct list_head list;
600 struct device gendev;
601 struct completion gendev_rel_comp;
602
603
604 struct ide_atapi_pc *pc;
605
606
607 struct ide_atapi_pc *failed_pc;
608
609
610 int (*pc_callback)(struct ide_drive_s *, int);
611
612 ide_startstop_t (*irq_handler)(struct ide_drive_s *);
613
614 unsigned long atapi_flags;
615
616 struct ide_atapi_pc request_sense_pc;
617
618
619 bool sense_rq_armed;
620 bool sense_rq_active;
621 struct request *sense_rq;
622 struct request_sense sense_data;
623
624
625 struct work_struct rq_work;
626 struct list_head rq_list;
627};
628
629typedef struct ide_drive_s ide_drive_t;
630
631#define to_ide_device(dev) container_of(dev, ide_drive_t, gendev)
632
633#define to_ide_drv(obj, cont_type) \
634 container_of(obj, struct cont_type, dev)
635
636#define ide_drv_g(disk, cont_type) \
637 container_of((disk)->private_data, struct cont_type, driver)
638
639struct ide_port_info;
640
641struct ide_tp_ops {
642 void (*exec_command)(struct hwif_s *, u8);
643 u8 (*read_status)(struct hwif_s *);
644 u8 (*read_altstatus)(struct hwif_s *);
645 void (*write_devctl)(struct hwif_s *, u8);
646
647 void (*dev_select)(ide_drive_t *);
648 void (*tf_load)(ide_drive_t *, struct ide_taskfile *, u8);
649 void (*tf_read)(ide_drive_t *, struct ide_taskfile *, u8);
650
651 void (*input_data)(ide_drive_t *, struct ide_cmd *,
652 void *, unsigned int);
653 void (*output_data)(ide_drive_t *, struct ide_cmd *,
654 void *, unsigned int);
655};
656
657extern const struct ide_tp_ops default_tp_ops;
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677struct ide_port_ops {
678 void (*init_dev)(ide_drive_t *);
679 void (*set_pio_mode)(struct hwif_s *, ide_drive_t *);
680 void (*set_dma_mode)(struct hwif_s *, ide_drive_t *);
681 blk_status_t (*reset_poll)(ide_drive_t *);
682 void (*pre_reset)(ide_drive_t *);
683 void (*resetproc)(ide_drive_t *);
684 void (*maskproc)(ide_drive_t *, int);
685 void (*quirkproc)(ide_drive_t *);
686 void (*clear_irq)(ide_drive_t *);
687 int (*test_irq)(struct hwif_s *);
688
689 u8 (*mdma_filter)(ide_drive_t *);
690 u8 (*udma_filter)(ide_drive_t *);
691
692 u8 (*cable_detect)(struct hwif_s *);
693};
694
695struct ide_dma_ops {
696 void (*dma_host_set)(struct ide_drive_s *, int);
697 int (*dma_setup)(struct ide_drive_s *, struct ide_cmd *);
698 void (*dma_start)(struct ide_drive_s *);
699 int (*dma_end)(struct ide_drive_s *);
700 int (*dma_test_irq)(struct ide_drive_s *);
701 void (*dma_lost_irq)(struct ide_drive_s *);
702
703 int (*dma_check)(struct ide_drive_s *, struct ide_cmd *);
704 int (*dma_timer_expiry)(struct ide_drive_s *);
705 void (*dma_clear)(struct ide_drive_s *);
706
707
708
709
710 u8 (*dma_sff_read_status)(struct hwif_s *);
711};
712
713enum {
714 IDE_PFLAG_PROBING = BIT(0),
715};
716
717struct ide_host;
718
719typedef struct hwif_s {
720 struct hwif_s *mate;
721 struct proc_dir_entry *proc;
722
723 struct ide_host *host;
724
725 char name[6];
726
727 struct ide_io_ports io_ports;
728
729 unsigned long sata_scr[SATA_NR_PORTS];
730
731 ide_drive_t *devices[MAX_DRIVES + 1];
732
733 unsigned long port_flags;
734
735 u8 major;
736 u8 index;
737 u8 channel;
738
739 u32 host_flags;
740
741 u8 pio_mask;
742
743 u8 ultra_mask;
744 u8 mwdma_mask;
745 u8 swdma_mask;
746
747 u8 cbl;
748
749 hwif_chipset_t chipset;
750
751 struct device *dev;
752
753 void (*rw_disk)(ide_drive_t *, struct request *);
754
755 const struct ide_tp_ops *tp_ops;
756 const struct ide_port_ops *port_ops;
757 const struct ide_dma_ops *dma_ops;
758
759
760 unsigned int *dmatable_cpu;
761
762 dma_addr_t dmatable_dma;
763
764
765 int prd_max_nents;
766
767 int prd_ent_size;
768
769
770 struct scatterlist *sg_table;
771 int sg_max_nents;
772
773 struct ide_cmd cmd;
774
775 int rqsize;
776 int irq;
777
778 unsigned long dma_base;
779
780 unsigned long config_data;
781 unsigned long select_data;
782
783 unsigned long extra_base;
784 unsigned extra_ports;
785
786 unsigned present : 1;
787 unsigned busy : 1;
788
789 struct device gendev;
790 struct device *portdev;
791
792 struct completion gendev_rel_comp;
793
794 void *hwif_data;
795
796#ifdef CONFIG_BLK_DEV_IDEACPI
797 struct ide_acpi_hwif_link *acpidata;
798#endif
799
800
801 ide_startstop_t (*handler)(ide_drive_t *);
802
803
804 unsigned int polling : 1;
805
806
807 ide_drive_t *cur_dev;
808
809
810 struct request *rq;
811
812
813 struct timer_list timer;
814
815 unsigned long poll_timeout;
816
817 int (*expiry)(ide_drive_t *);
818
819 int req_gen;
820 int req_gen_timer;
821
822 spinlock_t lock;
823} ____cacheline_internodealigned_in_smp ide_hwif_t;
824
825#define MAX_HOST_PORTS 4
826
827struct ide_host {
828 ide_hwif_t *ports[MAX_HOST_PORTS + 1];
829 unsigned int n_ports;
830 struct device *dev[2];
831
832 int (*init_chipset)(struct pci_dev *);
833
834 void (*get_lock)(irq_handler_t, void *);
835 void (*release_lock)(void);
836
837 irq_handler_t irq_handler;
838
839 unsigned long host_flags;
840
841 int irq_flags;
842
843 void *host_priv;
844 ide_hwif_t *cur_port;
845
846
847 volatile unsigned long host_busy;
848};
849
850#define IDE_HOST_BUSY 0
851
852
853
854
855typedef ide_startstop_t (ide_handler_t)(ide_drive_t *);
856typedef int (ide_expiry_t)(ide_drive_t *);
857
858
859typedef void (xfer_func_t)(ide_drive_t *, struct ide_cmd *, void *, unsigned);
860
861extern struct mutex ide_setting_mtx;
862
863
864
865
866
867#define DS_SYNC BIT(0)
868
869struct ide_devset {
870 int (*get)(ide_drive_t *);
871 int (*set)(ide_drive_t *, int);
872 unsigned int flags;
873};
874
875#define __DEVSET(_flags, _get, _set) { \
876 .flags = _flags, \
877 .get = _get, \
878 .set = _set, \
879}
880
881#define ide_devset_get(name, field) \
882static int get_##name(ide_drive_t *drive) \
883{ \
884 return drive->field; \
885}
886
887#define ide_devset_set(name, field) \
888static int set_##name(ide_drive_t *drive, int arg) \
889{ \
890 drive->field = arg; \
891 return 0; \
892}
893
894#define ide_devset_get_flag(name, flag) \
895static int get_##name(ide_drive_t *drive) \
896{ \
897 return !!(drive->dev_flags & flag); \
898}
899
900#define ide_devset_set_flag(name, flag) \
901static int set_##name(ide_drive_t *drive, int arg) \
902{ \
903 if (arg) \
904 drive->dev_flags |= flag; \
905 else \
906 drive->dev_flags &= ~flag; \
907 return 0; \
908}
909
910#define __IDE_DEVSET(_name, _flags, _get, _set) \
911const struct ide_devset ide_devset_##_name = \
912 __DEVSET(_flags, _get, _set)
913
914#define IDE_DEVSET(_name, _flags, _get, _set) \
915static __IDE_DEVSET(_name, _flags, _get, _set)
916
917#define ide_devset_rw(_name, _func) \
918IDE_DEVSET(_name, 0, get_##_func, set_##_func)
919
920#define ide_devset_w(_name, _func) \
921IDE_DEVSET(_name, 0, NULL, set_##_func)
922
923#define ide_ext_devset_rw(_name, _func) \
924__IDE_DEVSET(_name, 0, get_##_func, set_##_func)
925
926#define ide_ext_devset_rw_sync(_name, _func) \
927__IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func)
928
929#define ide_decl_devset(_name) \
930extern const struct ide_devset ide_devset_##_name
931
932ide_decl_devset(io_32bit);
933ide_decl_devset(keepsettings);
934ide_decl_devset(pio_mode);
935ide_decl_devset(unmaskirq);
936ide_decl_devset(using_dma);
937
938#ifdef CONFIG_IDE_PROC_FS
939
940
941
942
943#define ide_devset_rw_field(_name, _field) \
944ide_devset_get(_name, _field); \
945ide_devset_set(_name, _field); \
946IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
947
948#define ide_devset_ro_field(_name, _field) \
949ide_devset_get(_name, _field); \
950IDE_DEVSET(_name, 0, get_##_name, NULL)
951
952#define ide_devset_rw_flag(_name, _field) \
953ide_devset_get_flag(_name, _field); \
954ide_devset_set_flag(_name, _field); \
955IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
956
957struct ide_proc_devset {
958 const char *name;
959 const struct ide_devset *setting;
960 int min, max;
961 int (*mulf)(ide_drive_t *);
962 int (*divf)(ide_drive_t *);
963};
964
965#define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \
966 .name = __stringify(_name), \
967 .setting = &ide_devset_##_name, \
968 .min = _min, \
969 .max = _max, \
970 .mulf = _mulf, \
971 .divf = _divf, \
972}
973
974#define IDE_PROC_DEVSET(_name, _min, _max) \
975__IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL)
976
977typedef struct {
978 const char *name;
979 umode_t mode;
980 int (*show)(struct seq_file *, void *);
981} ide_proc_entry_t;
982
983void proc_ide_create(void);
984void proc_ide_destroy(void);
985void ide_proc_register_port(ide_hwif_t *);
986void ide_proc_port_register_devices(ide_hwif_t *);
987void ide_proc_unregister_device(ide_drive_t *);
988void ide_proc_unregister_port(ide_hwif_t *);
989void ide_proc_register_driver(ide_drive_t *, struct ide_driver *);
990void ide_proc_unregister_driver(ide_drive_t *, struct ide_driver *);
991
992int ide_capacity_proc_show(struct seq_file *m, void *v);
993int ide_geometry_proc_show(struct seq_file *m, void *v);
994#else
995static inline void proc_ide_create(void) { ; }
996static inline void proc_ide_destroy(void) { ; }
997static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; }
998static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; }
999static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; }
1000static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
1001static inline void ide_proc_register_driver(ide_drive_t *drive,
1002 struct ide_driver *driver) { ; }
1003static inline void ide_proc_unregister_driver(ide_drive_t *drive,
1004 struct ide_driver *driver) { ; }
1005#endif
1006
1007enum {
1008
1009 IDE_DBG_FUNC = BIT(0),
1010
1011 IDE_DBG_SENSE = BIT(1),
1012
1013 IDE_DBG_PC = BIT(2),
1014
1015 IDE_DBG_RQ = BIT(3),
1016
1017 IDE_DBG_PROBE = BIT(4),
1018};
1019
1020
1021#define __ide_debug_log(lvl, fmt, args...) \
1022{ \
1023 if (unlikely(drive->debug_mask & lvl)) \
1024 printk(KERN_INFO DRV_NAME ": %s: " fmt "\n", \
1025 __func__, ## args); \
1026}
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046enum {
1047 IDE_PM_START_SUSPEND,
1048 IDE_PM_FLUSH_CACHE = IDE_PM_START_SUSPEND,
1049 IDE_PM_STANDBY,
1050
1051 IDE_PM_START_RESUME,
1052 IDE_PM_RESTORE_PIO = IDE_PM_START_RESUME,
1053 IDE_PM_IDLE,
1054 IDE_PM_RESTORE_DMA,
1055
1056 IDE_PM_COMPLETED,
1057};
1058
1059int generic_ide_suspend(struct device *, pm_message_t);
1060int generic_ide_resume(struct device *);
1061
1062void ide_complete_power_step(ide_drive_t *, struct request *);
1063ide_startstop_t ide_start_power_step(ide_drive_t *, struct request *);
1064void ide_complete_pm_rq(ide_drive_t *, struct request *);
1065void ide_check_pm_state(ide_drive_t *, struct request *);
1066
1067
1068
1069
1070
1071
1072
1073struct ide_driver {
1074 const char *version;
1075 ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t);
1076 struct device_driver gen_driver;
1077 int (*probe)(ide_drive_t *);
1078 void (*remove)(ide_drive_t *);
1079 void (*resume)(ide_drive_t *);
1080 void (*shutdown)(ide_drive_t *);
1081#ifdef CONFIG_IDE_PROC_FS
1082 ide_proc_entry_t * (*proc_entries)(ide_drive_t *);
1083 const struct ide_proc_devset * (*proc_devsets)(ide_drive_t *);
1084#endif
1085};
1086
1087#define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver)
1088
1089int ide_device_get(ide_drive_t *);
1090void ide_device_put(ide_drive_t *);
1091
1092struct ide_ioctl_devset {
1093 unsigned int get_ioctl;
1094 unsigned int set_ioctl;
1095 const struct ide_devset *setting;
1096};
1097
1098int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int,
1099 unsigned long, const struct ide_ioctl_devset *);
1100
1101int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned long);
1102
1103extern int ide_vlb_clk;
1104extern int ide_pci_clk;
1105
1106int ide_end_rq(ide_drive_t *, struct request *, blk_status_t, unsigned int);
1107void ide_kill_rq(ide_drive_t *, struct request *);
1108void ide_insert_request_head(ide_drive_t *, struct request *);
1109
1110void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
1111void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
1112
1113void ide_execute_command(ide_drive_t *, struct ide_cmd *, ide_handler_t *,
1114 unsigned int);
1115
1116void ide_pad_transfer(ide_drive_t *, int, int);
1117
1118ide_startstop_t ide_error(ide_drive_t *, const char *, u8);
1119
1120void ide_fix_driveid(u16 *);
1121
1122extern void ide_fixstring(u8 *, const int, const int);
1123
1124int ide_busy_sleep(ide_drive_t *, unsigned long, int);
1125
1126int __ide_wait_stat(ide_drive_t *, u8, u8, unsigned long, u8 *);
1127int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
1128
1129ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *);
1130ide_startstop_t ide_do_devset(ide_drive_t *, struct request *);
1131
1132extern ide_startstop_t ide_do_reset (ide_drive_t *);
1133
1134extern int ide_devset_execute(ide_drive_t *drive,
1135 const struct ide_devset *setting, int arg);
1136
1137void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8);
1138int ide_complete_rq(ide_drive_t *, blk_status_t, unsigned int);
1139
1140void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd);
1141void ide_tf_dump(const char *, struct ide_cmd *);
1142
1143void ide_exec_command(ide_hwif_t *, u8);
1144u8 ide_read_status(ide_hwif_t *);
1145u8 ide_read_altstatus(ide_hwif_t *);
1146void ide_write_devctl(ide_hwif_t *, u8);
1147
1148void ide_dev_select(ide_drive_t *);
1149void ide_tf_load(ide_drive_t *, struct ide_taskfile *, u8);
1150void ide_tf_read(ide_drive_t *, struct ide_taskfile *, u8);
1151
1152void ide_input_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
1153void ide_output_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
1154
1155void SELECT_MASK(ide_drive_t *, int);
1156
1157u8 ide_read_error(ide_drive_t *);
1158void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *);
1159
1160int ide_check_ireason(ide_drive_t *, struct request *, int, int, int);
1161
1162int ide_check_atapi_device(ide_drive_t *, const char *);
1163
1164void ide_init_pc(struct ide_atapi_pc *);
1165
1166
1167extern wait_queue_head_t ide_park_wq;
1168ssize_t ide_park_show(struct device *dev, struct device_attribute *attr,
1169 char *buf);
1170ssize_t ide_park_store(struct device *dev, struct device_attribute *attr,
1171 const char *buf, size_t len);
1172
1173
1174
1175
1176
1177
1178
1179enum {
1180 REQ_IDETAPE_PC1 = BIT(0),
1181 REQ_IDETAPE_PC2 = BIT(1),
1182 REQ_IDETAPE_READ = BIT(2),
1183 REQ_IDETAPE_WRITE = BIT(3),
1184};
1185
1186int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *,
1187 void *, unsigned int);
1188
1189int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *);
1190int ide_do_start_stop(ide_drive_t *, struct gendisk *, int);
1191int ide_set_media_lock(ide_drive_t *, struct gendisk *, int);
1192void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *);
1193void ide_retry_pc(ide_drive_t *drive);
1194
1195void ide_prep_sense(ide_drive_t *drive, struct request *rq);
1196int ide_queue_sense_rq(ide_drive_t *drive, void *special);
1197
1198int ide_cd_expiry(ide_drive_t *);
1199
1200int ide_cd_get_xferlen(struct request *);
1201
1202ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_cmd *);
1203
1204ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *);
1205
1206void ide_pio_bytes(ide_drive_t *, struct ide_cmd *, unsigned int, unsigned int);
1207
1208void ide_finish_cmd(ide_drive_t *, struct ide_cmd *, u8);
1209
1210int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16);
1211int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *);
1212
1213int ide_taskfile_ioctl(ide_drive_t *, unsigned long);
1214
1215int ide_dev_read_id(ide_drive_t *, u8, u16 *, int);
1216
1217extern int ide_driveid_update(ide_drive_t *);
1218extern int ide_config_drive_speed(ide_drive_t *, u8);
1219extern u8 eighty_ninty_three (ide_drive_t *);
1220extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *);
1221
1222extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout);
1223
1224extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
1225
1226extern void ide_timer_expiry(struct timer_list *t);
1227extern irqreturn_t ide_intr(int irq, void *dev_id);
1228extern blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *, const struct blk_mq_queue_data *);
1229extern blk_status_t ide_issue_rq(ide_drive_t *, struct request *, bool);
1230extern void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq);
1231
1232void ide_init_disk(struct gendisk *, ide_drive_t *);
1233
1234#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
1235extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name);
1236#define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME)
1237#else
1238#define ide_pci_register_driver(d) pci_register_driver(d)
1239#endif
1240
1241static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev)
1242{
1243 if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5)
1244 return 1;
1245 return 0;
1246}
1247
1248void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *,
1249 struct ide_hw *, struct ide_hw **);
1250void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
1251
1252#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
1253int ide_pci_set_master(struct pci_dev *, const char *);
1254unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *);
1255int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *);
1256int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *);
1257#else
1258static inline int ide_hwif_setup_dma(ide_hwif_t *hwif,
1259 const struct ide_port_info *d)
1260{
1261 return -EINVAL;
1262}
1263#endif
1264
1265struct ide_pci_enablebit {
1266 u8 reg;
1267 u8 mask;
1268 u8 val;
1269};
1270
1271enum {
1272
1273 IDE_HFLAG_ISA_PORTS = BIT(0),
1274
1275 IDE_HFLAG_SINGLE = BIT(1),
1276
1277 IDE_HFLAG_PIO_NO_BLACKLIST = BIT(2),
1278
1279 IDE_HFLAG_QD_2ND_PORT = BIT(3),
1280
1281 IDE_HFLAG_ABUSE_PREFETCH = BIT(4),
1282
1283 IDE_HFLAG_ABUSE_FAST_DEVSEL = BIT(5),
1284
1285 IDE_HFLAG_ABUSE_DMA_MODES = BIT(6),
1286
1287
1288
1289
1290 IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = BIT(7),
1291
1292 IDE_HFLAG_POST_SET_MODE = BIT(8),
1293
1294 IDE_HFLAG_NO_SET_MODE = BIT(9),
1295
1296 IDE_HFLAG_TRUST_BIOS_FOR_DMA = BIT(10),
1297
1298 IDE_HFLAG_CS5520 = BIT(11),
1299
1300 IDE_HFLAG_NO_ATAPI_DMA = BIT(12),
1301
1302 IDE_HFLAG_NON_BOOTABLE = BIT(13),
1303
1304 IDE_HFLAG_NO_DMA = BIT(14),
1305
1306 IDE_HFLAG_NO_AUTODMA = BIT(15),
1307
1308 IDE_HFLAG_MMIO = BIT(16),
1309
1310 IDE_HFLAG_NO_LBA48 = BIT(17),
1311
1312 IDE_HFLAG_NO_LBA48_DMA = BIT(18),
1313
1314 IDE_HFLAG_ERROR_STOPS_FIFO = BIT(19),
1315
1316 IDE_HFLAG_SERIALIZE = BIT(20),
1317
1318 IDE_HFLAG_DTC2278 = BIT(21),
1319
1320 IDE_HFLAG_4DRIVES = BIT(22),
1321
1322 IDE_HFLAG_TRM290 = BIT(23),
1323
1324 IDE_HFLAG_IO_32BIT = BIT(24),
1325
1326 IDE_HFLAG_UNMASK_IRQS = BIT(25),
1327 IDE_HFLAG_BROKEN_ALTSTATUS = BIT(26),
1328
1329 IDE_HFLAG_SERIALIZE_DMA = BIT(27),
1330
1331 IDE_HFLAG_CLEAR_SIMPLEX = BIT(28),
1332
1333 IDE_HFLAG_NO_DSC = BIT(29),
1334
1335 IDE_HFLAG_NO_IO_32BIT = BIT(30),
1336
1337 IDE_HFLAG_NO_UNMASK_IRQS = BIT(31),
1338};
1339
1340#ifdef CONFIG_BLK_DEV_OFFBOARD
1341# define IDE_HFLAG_OFF_BOARD 0
1342#else
1343# define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE
1344#endif
1345
1346struct ide_port_info {
1347 char *name;
1348
1349 int (*init_chipset)(struct pci_dev *);
1350
1351 void (*get_lock)(irq_handler_t, void *);
1352 void (*release_lock)(void);
1353
1354 void (*init_iops)(ide_hwif_t *);
1355 void (*init_hwif)(ide_hwif_t *);
1356 int (*init_dma)(ide_hwif_t *,
1357 const struct ide_port_info *);
1358
1359 const struct ide_tp_ops *tp_ops;
1360 const struct ide_port_ops *port_ops;
1361 const struct ide_dma_ops *dma_ops;
1362
1363 struct ide_pci_enablebit enablebits[2];
1364
1365 hwif_chipset_t chipset;
1366
1367 u16 max_sectors;
1368
1369 u32 host_flags;
1370
1371 int irq_flags;
1372
1373 u8 pio_mask;
1374 u8 swdma_mask;
1375 u8 mwdma_mask;
1376 u8 udma_mask;
1377};
1378
1379
1380
1381
1382
1383struct ide_pm_state {
1384
1385 int pm_step;
1386
1387 u32 pm_state;
1388 void* data;
1389};
1390
1391
1392int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *);
1393int ide_pci_init_two(struct pci_dev *, struct pci_dev *,
1394 const struct ide_port_info *, void *);
1395void ide_pci_remove(struct pci_dev *);
1396
1397#ifdef CONFIG_PM
1398int ide_pci_suspend(struct pci_dev *, pm_message_t);
1399int ide_pci_resume(struct pci_dev *);
1400#else
1401#define ide_pci_suspend NULL
1402#define ide_pci_resume NULL
1403#endif
1404
1405void ide_map_sg(ide_drive_t *, struct ide_cmd *);
1406void ide_init_sg_cmd(struct ide_cmd *, unsigned int);
1407
1408#define BAD_DMA_DRIVE 0
1409#define GOOD_DMA_DRIVE 1
1410
1411struct drive_list_entry {
1412 const char *id_model;
1413 const char *id_firmware;
1414};
1415
1416int ide_in_drive_list(u16 *, const struct drive_list_entry *);
1417
1418#ifdef CONFIG_BLK_DEV_IDEDMA
1419int ide_dma_good_drive(ide_drive_t *);
1420int __ide_dma_bad_drive(ide_drive_t *);
1421
1422u8 ide_find_dma_mode(ide_drive_t *, u8);
1423
1424static inline u8 ide_max_dma_mode(ide_drive_t *drive)
1425{
1426 return ide_find_dma_mode(drive, XFER_UDMA_6);
1427}
1428
1429void ide_dma_off_quietly(ide_drive_t *);
1430void ide_dma_off(ide_drive_t *);
1431void ide_dma_on(ide_drive_t *);
1432int ide_set_dma(ide_drive_t *);
1433void ide_check_dma_crc(ide_drive_t *);
1434ide_startstop_t ide_dma_intr(ide_drive_t *);
1435
1436int ide_allocate_dma_engine(ide_hwif_t *);
1437void ide_release_dma_engine(ide_hwif_t *);
1438
1439int ide_dma_prepare(ide_drive_t *, struct ide_cmd *);
1440void ide_dma_unmap_sg(ide_drive_t *, struct ide_cmd *);
1441
1442#ifdef CONFIG_BLK_DEV_IDEDMA_SFF
1443int config_drive_for_dma(ide_drive_t *);
1444int ide_build_dmatable(ide_drive_t *, struct ide_cmd *);
1445void ide_dma_host_set(ide_drive_t *, int);
1446int ide_dma_setup(ide_drive_t *, struct ide_cmd *);
1447extern void ide_dma_start(ide_drive_t *);
1448int ide_dma_end(ide_drive_t *);
1449int ide_dma_test_irq(ide_drive_t *);
1450int ide_dma_sff_timer_expiry(ide_drive_t *);
1451u8 ide_dma_sff_read_status(ide_hwif_t *);
1452extern const struct ide_dma_ops sff_dma_ops;
1453#else
1454static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; }
1455#endif
1456
1457void ide_dma_lost_irq(ide_drive_t *);
1458ide_startstop_t ide_dma_timeout_retry(ide_drive_t *, int);
1459
1460#else
1461static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; }
1462static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; }
1463static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; }
1464static inline void ide_dma_off(ide_drive_t *drive) { ; }
1465static inline void ide_dma_on(ide_drive_t *drive) { ; }
1466static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
1467static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
1468static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
1469static inline ide_startstop_t ide_dma_intr(ide_drive_t *drive) { return ide_stopped; }
1470static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
1471static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
1472static inline int ide_dma_prepare(ide_drive_t *drive,
1473 struct ide_cmd *cmd) { return 1; }
1474static inline void ide_dma_unmap_sg(ide_drive_t *drive,
1475 struct ide_cmd *cmd) { ; }
1476#endif
1477
1478#ifdef CONFIG_BLK_DEV_IDEACPI
1479int ide_acpi_init(void);
1480bool ide_port_acpi(ide_hwif_t *hwif);
1481extern int ide_acpi_exec_tfs(ide_drive_t *drive);
1482extern void ide_acpi_get_timing(ide_hwif_t *hwif);
1483extern void ide_acpi_push_timing(ide_hwif_t *hwif);
1484void ide_acpi_init_port(ide_hwif_t *);
1485void ide_acpi_port_init_devices(ide_hwif_t *);
1486extern void ide_acpi_set_state(ide_hwif_t *hwif, int on);
1487#else
1488static inline int ide_acpi_init(void) { return 0; }
1489static inline bool ide_port_acpi(ide_hwif_t *hwif) { return 0; }
1490static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; }
1491static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; }
1492static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; }
1493static inline void ide_acpi_init_port(ide_hwif_t *hwif) { ; }
1494static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; }
1495static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
1496#endif
1497
1498void ide_register_region(struct gendisk *);
1499void ide_unregister_region(struct gendisk *);
1500
1501void ide_check_nien_quirk_list(ide_drive_t *);
1502void ide_undecoded_slave(ide_drive_t *);
1503
1504void ide_port_apply_params(ide_hwif_t *);
1505int ide_sysfs_register_port(ide_hwif_t *);
1506
1507struct ide_host *ide_host_alloc(const struct ide_port_info *, struct ide_hw **,
1508 unsigned int);
1509void ide_host_free(struct ide_host *);
1510int ide_host_register(struct ide_host *, const struct ide_port_info *,
1511 struct ide_hw **);
1512int ide_host_add(const struct ide_port_info *, struct ide_hw **, unsigned int,
1513 struct ide_host **);
1514void ide_host_remove(struct ide_host *);
1515int ide_legacy_device_add(const struct ide_port_info *, unsigned long);
1516void ide_port_unregister_devices(ide_hwif_t *);
1517void ide_port_scan(ide_hwif_t *);
1518
1519static inline void *ide_get_hwifdata (ide_hwif_t * hwif)
1520{
1521 return hwif->hwif_data;
1522}
1523
1524static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data)
1525{
1526 hwif->hwif_data = data;
1527}
1528
1529u64 ide_get_lba_addr(struct ide_cmd *, int);
1530u8 ide_dump_status(ide_drive_t *, const char *, u8);
1531
1532struct ide_timing {
1533 u8 mode;
1534 u8 setup;
1535 u16 act8b;
1536 u16 rec8b;
1537 u16 cyc8b;
1538 u16 active;
1539 u16 recover;
1540 u16 cycle;
1541 u16 udma;
1542};
1543
1544enum {
1545 IDE_TIMING_SETUP = BIT(0),
1546 IDE_TIMING_ACT8B = BIT(1),
1547 IDE_TIMING_REC8B = BIT(2),
1548 IDE_TIMING_CYC8B = BIT(3),
1549 IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B |
1550 IDE_TIMING_CYC8B,
1551 IDE_TIMING_ACTIVE = BIT(4),
1552 IDE_TIMING_RECOVER = BIT(5),
1553 IDE_TIMING_CYCLE = BIT(6),
1554 IDE_TIMING_UDMA = BIT(7),
1555 IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT |
1556 IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER |
1557 IDE_TIMING_CYCLE | IDE_TIMING_UDMA,
1558};
1559
1560struct ide_timing *ide_timing_find_mode(u8);
1561u16 ide_pio_cycle_time(ide_drive_t *, u8);
1562void ide_timing_merge(struct ide_timing *, struct ide_timing *,
1563 struct ide_timing *, unsigned int);
1564int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int);
1565
1566#ifdef CONFIG_IDE_XFER_MODE
1567int ide_scan_pio_blacklist(char *);
1568const char *ide_xfer_verbose(u8);
1569int ide_pio_need_iordy(ide_drive_t *, const u8);
1570int ide_set_pio_mode(ide_drive_t *, u8);
1571int ide_set_dma_mode(ide_drive_t *, u8);
1572void ide_set_pio(ide_drive_t *, u8);
1573int ide_set_xfer_rate(ide_drive_t *, u8);
1574#else
1575static inline void ide_set_pio(ide_drive_t *drive, u8 pio) { ; }
1576static inline int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) { return -1; }
1577#endif
1578
1579static inline void ide_set_max_pio(ide_drive_t *drive)
1580{
1581 ide_set_pio(drive, 255);
1582}
1583
1584char *ide_media_string(ide_drive_t *);
1585
1586extern const struct attribute_group *ide_dev_groups[];
1587extern struct bus_type ide_bus_type;
1588extern struct class *ide_port_class;
1589
1590static inline void ide_dump_identify(u8 *id)
1591{
1592 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0);
1593}
1594
1595static inline int hwif_to_node(ide_hwif_t *hwif)
1596{
1597 return hwif->dev ? dev_to_node(hwif->dev) : -1;
1598}
1599
1600static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
1601{
1602 ide_drive_t *peer = drive->hwif->devices[(drive->dn ^ 1) & 1];
1603
1604 return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL;
1605}
1606
1607static inline void *ide_get_drivedata(ide_drive_t *drive)
1608{
1609 return drive->drive_data;
1610}
1611
1612static inline void ide_set_drivedata(ide_drive_t *drive, void *data)
1613{
1614 drive->drive_data = data;
1615}
1616
1617#define ide_port_for_each_dev(i, dev, port) \
1618 for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
1619
1620#define ide_port_for_each_present_dev(i, dev, port) \
1621 for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \
1622 if ((dev)->dev_flags & IDE_DFLAG_PRESENT)
1623
1624#define ide_host_for_each_port(i, port, host) \
1625 for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)
1626
1627
1628#endif
1629