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/hdreg.h>
12#include <linux/hdsmart.h>
13#include <linux/blkdev.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/device.h>
19#include <linux/pci.h>
20#include <linux/completion.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/semaphore.h>
28#include <asm/mutex.h>
29
30
31
32
33
34
35#define INITIAL_MULT_COUNT 0
36
37#ifndef SUPPORT_SLOW_DATA_PORTS
38#define SUPPORT_SLOW_DATA_PORTS 1
39#endif
40#ifndef SUPPORT_VLB_SYNC
41#define SUPPORT_VLB_SYNC 1
42#endif
43#ifndef OK_TO_RESET_CONTROLLER
44#define OK_TO_RESET_CONTROLLER 1
45#endif
46
47#ifndef DISABLE_IRQ_NOSYNC
48#define DISABLE_IRQ_NOSYNC 0
49#endif
50
51
52
53
54
55
56#define IDE_NO_IRQ (-1)
57
58
59
60
61
62typedef unsigned char byte;
63
64
65
66
67#define ERROR_MAX 8
68#define ERROR_RESET 3
69#define ERROR_RECAL 1
70
71
72
73
74#define IDE_TUNE_NOAUTO 2
75#define IDE_TUNE_AUTO 1
76#define IDE_TUNE_DEFAULT 0
77
78
79
80
81
82#define DMA_PIO_RETRY 1
83
84#define HWIF(drive) ((ide_hwif_t *)((drive)->hwif))
85#define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup))
86
87
88
89
90#define IDE_NR_PORTS (10)
91
92#define IDE_DATA_OFFSET (0)
93#define IDE_ERROR_OFFSET (1)
94#define IDE_NSECTOR_OFFSET (2)
95#define IDE_SECTOR_OFFSET (3)
96#define IDE_LCYL_OFFSET (4)
97#define IDE_HCYL_OFFSET (5)
98#define IDE_SELECT_OFFSET (6)
99#define IDE_STATUS_OFFSET (7)
100#define IDE_CONTROL_OFFSET (8)
101#define IDE_IRQ_OFFSET (9)
102
103#define IDE_FEATURE_OFFSET IDE_ERROR_OFFSET
104#define IDE_COMMAND_OFFSET IDE_STATUS_OFFSET
105
106#define IDE_CONTROL_OFFSET_HOB (7)
107
108#define IDE_DATA_REG (HWIF(drive)->io_ports[IDE_DATA_OFFSET])
109#define IDE_ERROR_REG (HWIF(drive)->io_ports[IDE_ERROR_OFFSET])
110#define IDE_NSECTOR_REG (HWIF(drive)->io_ports[IDE_NSECTOR_OFFSET])
111#define IDE_SECTOR_REG (HWIF(drive)->io_ports[IDE_SECTOR_OFFSET])
112#define IDE_LCYL_REG (HWIF(drive)->io_ports[IDE_LCYL_OFFSET])
113#define IDE_HCYL_REG (HWIF(drive)->io_ports[IDE_HCYL_OFFSET])
114#define IDE_SELECT_REG (HWIF(drive)->io_ports[IDE_SELECT_OFFSET])
115#define IDE_STATUS_REG (HWIF(drive)->io_ports[IDE_STATUS_OFFSET])
116#define IDE_CONTROL_REG (HWIF(drive)->io_ports[IDE_CONTROL_OFFSET])
117#define IDE_IRQ_REG (HWIF(drive)->io_ports[IDE_IRQ_OFFSET])
118
119#define IDE_FEATURE_REG IDE_ERROR_REG
120#define IDE_COMMAND_REG IDE_STATUS_REG
121#define IDE_ALTSTATUS_REG IDE_CONTROL_REG
122#define IDE_IREASON_REG IDE_NSECTOR_REG
123#define IDE_BCOUNTL_REG IDE_LCYL_REG
124#define IDE_BCOUNTH_REG IDE_HCYL_REG
125
126#define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good))
127#define BAD_R_STAT (BUSY_STAT | ERR_STAT)
128#define BAD_W_STAT (BAD_R_STAT | WRERR_STAT)
129#define BAD_STAT (BAD_R_STAT | DRQ_STAT)
130#define DRIVE_READY (READY_STAT | SEEK_STAT)
131#define DATA_READY (DRQ_STAT)
132
133#define BAD_CRC (ABRT_ERR | ICRC_ERR)
134
135#define SATA_NR_PORTS (3)
136
137#define SATA_STATUS_OFFSET (0)
138#define SATA_STATUS_REG (HWIF(drive)->sata_scr[SATA_STATUS_OFFSET])
139#define SATA_ERROR_OFFSET (1)
140#define SATA_ERROR_REG (HWIF(drive)->sata_scr[SATA_ERROR_OFFSET])
141#define SATA_CONTROL_OFFSET (2)
142#define SATA_CONTROL_REG (HWIF(drive)->sata_scr[SATA_CONTROL_OFFSET])
143
144#define SATA_MISC_OFFSET (0)
145#define SATA_MISC_REG (HWIF(drive)->sata_misc[SATA_MISC_OFFSET])
146#define SATA_PHY_OFFSET (1)
147#define SATA_PHY_REG (HWIF(drive)->sata_misc[SATA_PHY_OFFSET])
148#define SATA_IEN_OFFSET (2)
149#define SATA_IEN_REG (HWIF(drive)->sata_misc[SATA_IEN_OFFSET])
150
151
152
153
154
155
156
157
158
159
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161
162
163
164
165
166
167#define PRD_BYTES 8
168#define PRD_ENTRIES 256
169
170
171
172
173#define PARTN_BITS 6
174#define MAX_DRIVES 2
175#define SECTOR_SIZE 512
176#define SECTOR_WORDS (SECTOR_SIZE / 4)
177#define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t)))
178
179
180
181
182#define WAIT_DRQ (HZ/10)
183#define WAIT_READY (5*HZ)
184#define WAIT_PIDENTIFY (10*HZ)
185#define WAIT_WORSTCASE (30*HZ)
186#define WAIT_CMD (10*HZ)
187#define WAIT_MIN_SLEEP (2*HZ/100)
188
189
190
191
192struct hwif_s;
193typedef int (ide_ack_intr_t)(struct hwif_s *);
194
195
196
197
198
199enum { ide_unknown, ide_generic, ide_pci,
200 ide_cmd640, ide_dtc2278, ide_ali14xx,
201 ide_qd65xx, ide_umc8672, ide_ht6560b,
202 ide_rz1000, ide_trm290,
203 ide_cmd646, ide_cy82c693, ide_4drives,
204 ide_pmac, ide_etrax100, ide_acorn,
205 ide_au1xxx, ide_forced
206};
207
208typedef u8 hwif_chipset_t;
209
210
211
212
213typedef struct hw_regs_s {
214 unsigned long io_ports[IDE_NR_PORTS];
215 int irq;
216 ide_ack_intr_t *ack_intr;
217 hwif_chipset_t chipset;
218 struct device *dev;
219} hw_regs_t;
220
221struct hwif_s * ide_find_port(unsigned long);
222
223int ide_register_hw(hw_regs_t *, void (*)(struct hwif_s *), int,
224 struct hwif_s **);
225
226void ide_setup_ports( hw_regs_t *hw,
227 unsigned long base,
228 int *offsets,
229 unsigned long ctrl,
230 unsigned long intr,
231 ide_ack_intr_t *ack_intr,
232#if 0
233 ide_io_ops_t *iops,
234#endif
235 int irq);
236
237static inline void ide_std_init_ports(hw_regs_t *hw,
238 unsigned long io_addr,
239 unsigned long ctl_addr)
240{
241 unsigned int i;
242
243 for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
244 hw->io_ports[i] = io_addr++;
245
246 hw->io_ports[IDE_CONTROL_OFFSET] = ctl_addr;
247}
248
249#include <asm/ide.h>
250
251#if !defined(MAX_HWIFS) || defined(CONFIG_EMBEDDED)
252#undef MAX_HWIFS
253#define MAX_HWIFS CONFIG_IDE_MAX_HWIFS
254#endif
255
256
257#ifndef IDE_ARCH_OBSOLETE_DEFAULTS
258# define ide_default_io_base(index) (0)
259# define ide_default_irq(base) (0)
260# define ide_init_default_irq(base) (0)
261#endif
262
263#ifdef CONFIG_IDE_ARCH_OBSOLETE_INIT
264static inline void ide_init_hwif_ports(hw_regs_t *hw,
265 unsigned long io_addr,
266 unsigned long ctl_addr,
267 int *irq)
268{
269 if (!ctl_addr)
270 ide_std_init_ports(hw, io_addr, ide_default_io_ctl(io_addr));
271 else
272 ide_std_init_ports(hw, io_addr, ctl_addr);
273
274 if (irq)
275 *irq = 0;
276
277 hw->io_ports[IDE_IRQ_OFFSET] = 0;
278
279#ifdef CONFIG_PPC32
280 if (ppc_ide_md.ide_init_hwif)
281 ppc_ide_md.ide_init_hwif(hw, io_addr, ctl_addr, irq);
282#endif
283}
284#else
285static inline void ide_init_hwif_ports(hw_regs_t *hw,
286 unsigned long io_addr,
287 unsigned long ctl_addr,
288 int *irq)
289{
290 if (io_addr || ctl_addr)
291 printk(KERN_WARNING "%s: must not be called\n", __FUNCTION__);
292}
293#endif
294
295
296#ifndef IDE_ARCH_ACK_INTR
297# define ide_ack_intr(hwif) (1)
298#endif
299
300
301#ifndef IDE_ARCH_LOCK
302# define ide_release_lock() do {} while (0)
303# define ide_get_lock(hdlr, data) do {} while (0)
304#endif
305
306
307
308
309
310#define ide_scsi 0x21
311#define ide_disk 0x20
312#define ide_optical 0x7
313#define ide_cdrom 0x5
314#define ide_tape 0x1
315#define ide_floppy 0x0
316
317
318
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320
321
322
323
324
325
326
327typedef union {
328 unsigned all : 8;
329 struct {
330#if defined(__LITTLE_ENDIAN_BITFIELD)
331 unsigned set_geometry : 1;
332 unsigned recalibrate : 1;
333 unsigned set_multmode : 1;
334 unsigned set_tune : 1;
335 unsigned serviced : 1;
336 unsigned reserved : 3;
337#elif defined(__BIG_ENDIAN_BITFIELD)
338 unsigned reserved : 3;
339 unsigned serviced : 1;
340 unsigned set_tune : 1;
341 unsigned set_multmode : 1;
342 unsigned recalibrate : 1;
343 unsigned set_geometry : 1;
344#else
345#error "Please fix <asm/byteorder.h>"
346#endif
347 } b;
348} special_t;
349
350
351
352
353
354
355typedef union {
356 unsigned all :16;
357 struct {
358#if defined(__LITTLE_ENDIAN_BITFIELD)
359 unsigned low :8;
360 unsigned high :8;
361#elif defined(__BIG_ENDIAN_BITFIELD)
362 unsigned high :8;
363 unsigned low :8;
364#else
365#error "Please fix <asm/byteorder.h>"
366#endif
367 } b;
368} ata_nsector_t, ata_data_t, atapi_bcount_t;
369
370
371
372
373
374
375
376
377
378
379typedef union {
380 unsigned all : 8;
381 struct {
382#if defined(__LITTLE_ENDIAN_BITFIELD)
383 unsigned head : 4;
384 unsigned unit : 1;
385 unsigned bit5 : 1;
386 unsigned lba : 1;
387 unsigned bit7 : 1;
388#elif defined(__BIG_ENDIAN_BITFIELD)
389 unsigned bit7 : 1;
390 unsigned lba : 1;
391 unsigned bit5 : 1;
392 unsigned unit : 1;
393 unsigned head : 4;
394#else
395#error "Please fix <asm/byteorder.h>"
396#endif
397 } b;
398} select_t, ata_select_t;
399
400
401
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407
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411
412
413
414
415
416
417typedef union {
418 unsigned all :8;
419 struct {
420#if defined(__LITTLE_ENDIAN_BITFIELD)
421 unsigned check :1;
422 unsigned idx :1;
423 unsigned corr :1;
424 unsigned drq :1;
425 unsigned dsc :1;
426 unsigned df :1;
427 unsigned drdy :1;
428 unsigned bsy :1;
429#elif defined(__BIG_ENDIAN_BITFIELD)
430 unsigned bsy :1;
431 unsigned drdy :1;
432 unsigned df :1;
433 unsigned dsc :1;
434 unsigned drq :1;
435 unsigned corr :1;
436 unsigned idx :1;
437 unsigned check :1;
438#else
439#error "Please fix <asm/byteorder.h>"
440#endif
441 } b;
442} ata_status_t, atapi_status_t;
443
444
445
446
447
448
449
450
451
452typedef union {
453 unsigned all :8;
454 struct {
455#if defined(__LITTLE_ENDIAN_BITFIELD)
456 unsigned dma :1;
457 unsigned reserved321 :3;
458 unsigned reserved654 :3;
459 unsigned reserved7 :1;
460#elif defined(__BIG_ENDIAN_BITFIELD)
461 unsigned reserved7 :1;
462 unsigned reserved654 :3;
463 unsigned reserved321 :3;
464 unsigned dma :1;
465#else
466#error "Please fix <asm/byteorder.h>"
467#endif
468 } b;
469} atapi_feature_t;
470
471
472
473
474
475
476
477
478typedef union {
479 unsigned all :8;
480 struct {
481#if defined(__LITTLE_ENDIAN_BITFIELD)
482 unsigned cod :1;
483 unsigned io :1;
484 unsigned reserved :6;
485#elif defined(__BIG_ENDIAN_BITFIELD)
486 unsigned reserved :6;
487 unsigned io :1;
488 unsigned cod :1;
489#else
490#error "Please fix <asm/byteorder.h>"
491#endif
492 } b;
493} atapi_ireason_t;
494
495
496
497
498
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500
501
502
503
504typedef union {
505 unsigned all :8;
506 struct {
507#if defined(__LITTLE_ENDIAN_BITFIELD)
508 unsigned ili :1;
509 unsigned eom :1;
510 unsigned abrt :1;
511 unsigned mcr :1;
512 unsigned sense_key :4;
513#elif defined(__BIG_ENDIAN_BITFIELD)
514 unsigned sense_key :4;
515 unsigned mcr :1;
516 unsigned abrt :1;
517 unsigned eom :1;
518 unsigned ili :1;
519#else
520#error "Please fix <asm/byteorder.h>"
521#endif
522 } b;
523} atapi_error_t;
524
525
526
527
528typedef enum {
529 ide_stopped,
530 ide_started,
531} ide_startstop_t;
532
533struct ide_driver_s;
534struct ide_settings_s;
535
536#ifdef CONFIG_BLK_DEV_IDEACPI
537struct ide_acpi_drive_link;
538struct ide_acpi_hwif_link;
539#endif
540
541typedef struct ide_drive_s {
542 char name[4];
543 char driver_req[10];
544
545 struct request_queue *queue;
546
547 struct request *rq;
548 struct ide_drive_s *next;
549 void *driver_data;
550 struct hd_driveid *id;
551#ifdef CONFIG_IDE_PROC_FS
552 struct proc_dir_entry *proc;
553 struct ide_settings_s *settings;
554#endif
555 struct hwif_s *hwif;
556
557 unsigned long sleep;
558 unsigned long service_start;
559 unsigned long service_time;
560 unsigned long timeout;
561
562 special_t special;
563 select_t select;
564
565 u8 keep_settings;
566 u8 using_dma;
567 u8 retry_pio;
568 u8 state;
569 u8 waiting_for_dma;
570 u8 unmask;
571 u8 bswap;
572 u8 noflush;
573 u8 dsc_overlap;
574 u8 nice1;
575
576 unsigned present : 1;
577 unsigned dead : 1;
578 unsigned id_read : 1;
579 unsigned noprobe : 1;
580 unsigned removable : 1;
581 unsigned attach : 1;
582 unsigned forced_geom : 1;
583 unsigned no_unmask : 1;
584 unsigned no_io_32bit : 1;
585 unsigned atapi_overlap : 1;
586 unsigned nice0 : 1;
587 unsigned nice2 : 1;
588 unsigned doorlocking : 1;
589 unsigned nodma : 1;
590 unsigned autotune : 2;
591 unsigned remap_0_to_1 : 1;
592 unsigned blocked : 1;
593 unsigned vdma : 1;
594 unsigned scsi : 1;
595 unsigned sleeping : 1;
596 unsigned post_reset : 1;
597 unsigned udma33_warned : 1;
598
599 u8 addressing;
600 u8 quirk_list;
601 u8 init_speed;
602 u8 current_speed;
603 u8 desired_speed;
604 u8 dn;
605 u8 wcache;
606 u8 acoustic;
607 u8 media;
608 u8 ctl;
609 u8 ready_stat;
610 u8 mult_count;
611 u8 mult_req;
612 u8 tune_req;
613 u8 io_32bit;
614 u8 bad_wstat;
615 u8 nowerr;
616 u8 sect0;
617 u8 head;
618 u8 sect;
619 u8 bios_head;
620 u8 bios_sect;
621
622 unsigned int bios_cyl;
623 unsigned int cyl;
624 unsigned int drive_data;
625 unsigned int failures;
626 unsigned int max_failures;
627 u64 probed_capacity;
628
629 u64 capacity64;
630
631 int lun;
632 int crc_count;
633#ifdef CONFIG_BLK_DEV_IDEACPI
634 struct ide_acpi_drive_link *acpidata;
635#endif
636 struct list_head list;
637 struct device gendev;
638 struct completion gendev_rel_comp;
639} ide_drive_t;
640
641#define to_ide_device(dev)container_of(dev, ide_drive_t, gendev)
642
643#define IDE_CHIPSET_PCI_MASK \
644 ((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx))
645#define IDE_CHIPSET_IS_PCI(c) ((IDE_CHIPSET_PCI_MASK >> (c)) & 1)
646
647struct ide_port_info;
648
649typedef struct hwif_s {
650 struct hwif_s *next;
651 struct hwif_s *mate;
652 struct hwgroup_s *hwgroup;
653 struct proc_dir_entry *proc;
654
655 char name[6];
656
657
658 unsigned long io_ports[IDE_NR_PORTS];
659 unsigned long sata_scr[SATA_NR_PORTS];
660 unsigned long sata_misc[SATA_NR_PORTS];
661
662 ide_drive_t drives[MAX_DRIVES];
663
664 u8 major;
665 u8 index;
666 u8 channel;
667 u8 straight8;
668 u8 bus_state;
669
670 u32 host_flags;
671
672 u8 pio_mask;
673
674 u8 ultra_mask;
675 u8 mwdma_mask;
676 u8 swdma_mask;
677
678 u8 cbl;
679
680 hwif_chipset_t chipset;
681
682 struct pci_dev *pci_dev;
683 const struct ide_port_info *cds;
684
685 ide_ack_intr_t *ack_intr;
686
687 void (*rw_disk)(ide_drive_t *, struct request *);
688
689#if 0
690 ide_hwif_ops_t *hwifops;
691#else
692
693 void (*set_pio_mode)(ide_drive_t *, const u8);
694
695 void (*set_dma_mode)(ide_drive_t *, const u8);
696
697 void (*selectproc)(ide_drive_t *);
698
699 int (*reset_poll)(ide_drive_t *);
700
701 void (*pre_reset)(ide_drive_t *);
702
703 void (*resetproc)(ide_drive_t *);
704
705 void (*intrproc)(ide_drive_t *);
706
707 void (*maskproc)(ide_drive_t *, int);
708
709 int (*quirkproc)(ide_drive_t *);
710
711 int (*busproc)(ide_drive_t *, int);
712#endif
713 u8 (*mdma_filter)(ide_drive_t *);
714 u8 (*udma_filter)(ide_drive_t *);
715
716 void (*fixup)(struct hwif_s *);
717
718 void (*ata_input_data)(ide_drive_t *, void *, u32);
719 void (*ata_output_data)(ide_drive_t *, void *, u32);
720
721 void (*atapi_input_bytes)(ide_drive_t *, void *, u32);
722 void (*atapi_output_bytes)(ide_drive_t *, void *, u32);
723
724 int (*dma_setup)(ide_drive_t *);
725 void (*dma_exec_cmd)(ide_drive_t *, u8);
726 void (*dma_start)(ide_drive_t *);
727 int (*ide_dma_end)(ide_drive_t *drive);
728 int (*ide_dma_on)(ide_drive_t *drive);
729 void (*dma_off_quietly)(ide_drive_t *drive);
730 int (*ide_dma_test_irq)(ide_drive_t *drive);
731 void (*ide_dma_clear_irq)(ide_drive_t *drive);
732 void (*dma_host_on)(ide_drive_t *drive);
733 void (*dma_host_off)(ide_drive_t *drive);
734 void (*dma_lost_irq)(ide_drive_t *drive);
735 void (*dma_timeout)(ide_drive_t *drive);
736
737 void (*OUTB)(u8 addr, unsigned long port);
738 void (*OUTBSYNC)(ide_drive_t *drive, u8 addr, unsigned long port);
739 void (*OUTW)(u16 addr, unsigned long port);
740 void (*OUTSW)(unsigned long port, void *addr, u32 count);
741 void (*OUTSL)(unsigned long port, void *addr, u32 count);
742
743 u8 (*INB)(unsigned long port);
744 u16 (*INW)(unsigned long port);
745 void (*INSW)(unsigned long port, void *addr, u32 count);
746 void (*INSL)(unsigned long port, void *addr, u32 count);
747
748
749 unsigned int *dmatable_cpu;
750
751 dma_addr_t dmatable_dma;
752
753 struct scatterlist *sg_table;
754 int sg_max_nents;
755 int sg_nents;
756 int sg_dma_direction;
757
758
759 int data_phase;
760
761 unsigned int nsect;
762 unsigned int nleft;
763 struct scatterlist *cursg;
764 unsigned int cursg_ofs;
765
766 int rqsize;
767 int irq;
768
769 unsigned long dma_master;
770 unsigned long dma_base;
771 unsigned long dma_command;
772 unsigned long dma_vendor1;
773 unsigned long dma_status;
774 unsigned long dma_vendor3;
775 unsigned long dma_prdtable;
776
777 unsigned long config_data;
778 unsigned long select_data;
779
780 unsigned long extra_base;
781 unsigned extra_ports;
782
783 unsigned noprobe : 1;
784 unsigned present : 1;
785 unsigned hold : 1;
786 unsigned serialized : 1;
787 unsigned sharing_irq: 1;
788 unsigned reset : 1;
789 unsigned auto_poll : 1;
790 unsigned sg_mapped : 1;
791 unsigned no_io_32bit : 1;
792 unsigned mmio : 1;
793
794 struct device gendev;
795 struct completion gendev_rel_comp;
796
797 void *hwif_data;
798
799 unsigned dma;
800
801#ifdef CONFIG_BLK_DEV_IDEACPI
802 struct ide_acpi_hwif_link *acpidata;
803#endif
804} ____cacheline_internodealigned_in_smp ide_hwif_t;
805
806
807
808
809typedef ide_startstop_t (ide_pre_handler_t)(ide_drive_t *, struct request *);
810typedef ide_startstop_t (ide_handler_t)(ide_drive_t *);
811typedef int (ide_expiry_t)(ide_drive_t *);
812
813typedef struct hwgroup_s {
814
815 ide_startstop_t (*handler)(ide_drive_t *);
816
817 ide_startstop_t (*handler_save)(ide_drive_t *);
818
819 volatile int busy;
820
821 unsigned int sleeping : 1;
822
823 unsigned int polling : 1;
824
825 unsigned int resetting : 1;
826
827
828 ide_drive_t *drive;
829
830 ide_hwif_t *hwif;
831
832
833 struct pci_dev *pci_dev;
834
835
836 struct request *rq;
837
838 struct timer_list timer;
839
840 struct request wrq;
841
842 unsigned long poll_timeout;
843
844 int (*expiry)(ide_drive_t *);
845
846 int pio_clock;
847 int req_gen;
848 int req_gen_timer;
849
850 unsigned char cmd_buf[4];
851} ide_hwgroup_t;
852
853typedef struct ide_driver_s ide_driver_t;
854
855extern struct mutex ide_setting_mtx;
856
857int set_io_32bit(ide_drive_t *, int);
858int set_pio_mode(ide_drive_t *, int);
859int set_using_dma(ide_drive_t *, int);
860
861#ifdef CONFIG_IDE_PROC_FS
862
863
864
865
866#define TYPE_INT 0
867#define TYPE_BYTE 1
868#define TYPE_SHORT 2
869
870#define SETTING_READ (1 << 0)
871#define SETTING_WRITE (1 << 1)
872#define SETTING_RW (SETTING_READ | SETTING_WRITE)
873
874typedef int (ide_procset_t)(ide_drive_t *, int);
875typedef struct ide_settings_s {
876 char *name;
877 int rw;
878 int data_type;
879 int min;
880 int max;
881 int mul_factor;
882 int div_factor;
883 void *data;
884 ide_procset_t *set;
885 int auto_remove;
886 struct ide_settings_s *next;
887} ide_settings_t;
888
889int ide_add_setting(ide_drive_t *, const char *, int, int, int, int, int, int, void *, ide_procset_t *set);
890
891
892
893
894typedef struct {
895 const char *name;
896 mode_t mode;
897 read_proc_t *read_proc;
898 write_proc_t *write_proc;
899} ide_proc_entry_t;
900
901void proc_ide_create(void);
902void proc_ide_destroy(void);
903void ide_proc_register_port(ide_hwif_t *);
904void ide_proc_unregister_port(ide_hwif_t *);
905void ide_proc_register_driver(ide_drive_t *, ide_driver_t *);
906void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *);
907
908void ide_add_generic_settings(ide_drive_t *);
909
910read_proc_t proc_ide_read_capacity;
911read_proc_t proc_ide_read_geometry;
912
913#ifdef CONFIG_BLK_DEV_IDEPCI
914void ide_pci_create_host_proc(const char *, get_info_t *);
915#endif
916
917
918
919
920#define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) \
921{ \
922 len -= off; \
923 if (len < count) { \
924 *eof = 1; \
925 if (len <= 0) \
926 return 0; \
927 } else \
928 len = count; \
929 *start = page + off; \
930 return len; \
931}
932#else
933static inline void proc_ide_create(void) { ; }
934static inline void proc_ide_destroy(void) { ; }
935static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; }
936static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
937static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
938static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
939static inline void ide_add_generic_settings(ide_drive_t *drive) { ; }
940#define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0;
941#endif
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970enum {
971 ide_pm_state_completed = -1,
972 ide_pm_state_start_suspend = 0,
973 ide_pm_state_start_resume = 1000,
974};
975
976
977
978
979
980
981
982struct ide_driver_s {
983 const char *version;
984 u8 media;
985 unsigned supports_dsc_overlap : 1;
986 ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t);
987 int (*end_request)(ide_drive_t *, int, int);
988 ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8);
989 ide_startstop_t (*abort)(ide_drive_t *, struct request *rq);
990 struct device_driver gen_driver;
991 int (*probe)(ide_drive_t *);
992 void (*remove)(ide_drive_t *);
993 void (*resume)(ide_drive_t *);
994 void (*shutdown)(ide_drive_t *);
995#ifdef CONFIG_IDE_PROC_FS
996 ide_proc_entry_t *proc;
997#endif
998};
999
1000#define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver)
1001
1002int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long);
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012#ifndef _IDE_C
1013extern ide_hwif_t ide_hwifs[];
1014#endif
1015extern int noautodma;
1016
1017extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs);
1018int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
1019 int uptodate, int nr_sectors);
1020
1021extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry);
1022
1023extern void ide_execute_command(ide_drive_t *, task_ioreg_t cmd, ide_handler_t *, unsigned int, ide_expiry_t *);
1024
1025ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8);
1026
1027ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat);
1028
1029ide_startstop_t __ide_abort(ide_drive_t *, struct request *);
1030
1031extern ide_startstop_t ide_abort(ide_drive_t *, const char *);
1032
1033extern void ide_fix_driveid(struct hd_driveid *);
1034
1035extern void ide_fixstring(u8 *, const int, const int);
1036
1037int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
1038
1039extern ide_startstop_t ide_do_reset (ide_drive_t *);
1040
1041extern void ide_init_drive_cmd (struct request *rq);
1042
1043
1044
1045
1046typedef enum {
1047 ide_wait,
1048 ide_preempt,
1049 ide_head_wait,
1050 ide_end
1051} ide_action_t;
1052
1053extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t);
1054
1055extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
1056
1057
1058
1059
1060
1061
1062
1063extern int ide_wait_cmd(ide_drive_t *, u8, u8, u8, u8, u8 *);
1064
1065typedef struct ide_task_s {
1066
1067
1068
1069
1070
1071
1072 task_ioreg_t tfRegister[8];
1073 task_ioreg_t hobRegister[8];
1074 ide_reg_valid_t tf_out_flags;
1075 ide_reg_valid_t tf_in_flags;
1076 int data_phase;
1077 int command_type;
1078 ide_pre_handler_t *prehandler;
1079 ide_handler_t *handler;
1080 struct request *rq;
1081 void *special;
1082} ide_task_t;
1083
1084extern u32 ide_read_24(ide_drive_t *);
1085
1086extern void SELECT_DRIVE(ide_drive_t *);
1087extern void SELECT_INTERRUPT(ide_drive_t *);
1088extern void SELECT_MASK(ide_drive_t *, int);
1089extern void QUIRK_LIST(ide_drive_t *);
1090
1091extern int drive_is_ready(ide_drive_t *);
1092
1093
1094
1095
1096extern ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *);
1097
1098
1099
1100
1101extern ide_startstop_t flagged_taskfile(ide_drive_t *, ide_task_t *);
1102
1103extern ide_startstop_t set_multmode_intr(ide_drive_t *);
1104extern ide_startstop_t set_geometry_intr(ide_drive_t *);
1105extern ide_startstop_t recal_intr(ide_drive_t *);
1106extern ide_startstop_t task_no_data_intr(ide_drive_t *);
1107extern ide_startstop_t task_in_intr(ide_drive_t *);
1108extern ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *);
1109
1110extern int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *);
1111
1112int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long);
1113int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long);
1114int ide_task_ioctl(ide_drive_t *, unsigned int, unsigned long);
1115
1116extern int system_bus_clock(void);
1117
1118extern int ide_driveid_update(ide_drive_t *);
1119extern int ide_ata66_check(ide_drive_t *, ide_task_t *);
1120extern int ide_config_drive_speed(ide_drive_t *, u8);
1121extern u8 eighty_ninty_three (ide_drive_t *);
1122extern int set_transfer(ide_drive_t *, ide_task_t *);
1123extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *);
1124
1125extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout);
1126
1127extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
1128
1129extern int ide_spin_wait_hwgroup(ide_drive_t *);
1130extern void ide_timer_expiry(unsigned long);
1131extern irqreturn_t ide_intr(int irq, void *dev_id);
1132extern void do_ide_request(struct request_queue *);
1133
1134void ide_init_disk(struct gendisk *, ide_drive_t *);
1135
1136extern int ideprobe_init(void);
1137
1138#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
1139extern void ide_scan_pcibus(int scan_direction) __init;
1140extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name);
1141#define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME)
1142#else
1143#define ide_pci_register_driver(d) pci_register_driver(d)
1144#endif
1145
1146void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, u8 *);
1147void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
1148
1149extern void default_hwif_iops(ide_hwif_t *);
1150extern void default_hwif_mmiops(ide_hwif_t *);
1151extern void default_hwif_transport(ide_hwif_t *);
1152
1153typedef struct ide_pci_enablebit_s {
1154 u8 reg;
1155 u8 mask;
1156 u8 val;
1157} ide_pci_enablebit_t;
1158
1159enum {
1160
1161 IDE_HFLAG_ISA_PORTS = (1 << 0),
1162
1163 IDE_HFLAG_SINGLE = (1 << 1),
1164
1165 IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2),
1166
1167 IDE_HFLAG_PIO_NO_DOWNGRADE = (1 << 3),
1168
1169 IDE_HFLAG_ABUSE_PREFETCH = (1 << 4),
1170
1171 IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5),
1172
1173 IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6),
1174
1175
1176
1177
1178 IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7),
1179
1180 IDE_HFLAG_POST_SET_MODE = (1 << 8),
1181
1182 IDE_HFLAG_NO_SET_MODE = (1 << 9),
1183
1184 IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10),
1185
1186 IDE_HFLAG_VDMA = (1 << 11),
1187
1188 IDE_HFLAG_NO_ATAPI_DMA = (1 << 12),
1189
1190 IDE_HFLAG_BOOTABLE = (1 << 13),
1191
1192 IDE_HFLAG_NO_DMA = (1 << 14),
1193
1194 IDE_HFLAG_NO_AUTODMA = (1 << 15),
1195
1196 IDE_HFLAG_CS5520 = (1 << 16),
1197
1198 IDE_HFLAG_NO_LBA48 = (1 << 17),
1199
1200 IDE_HFLAG_NO_LBA48_DMA = (1 << 18),
1201
1202 IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19),
1203
1204 IDE_HFLAG_SERIALIZE = (1 << 20),
1205
1206 IDE_HFLAG_LEGACY_IRQS = (1 << 21),
1207
1208 IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22),
1209
1210 IDE_HFLAG_RQSIZE_256 = (1 << 23),
1211
1212 IDE_HFLAG_IO_32BIT = (1 << 24),
1213
1214 IDE_HFLAG_UNMASK_IRQS = (1 << 25),
1215};
1216
1217#ifdef CONFIG_BLK_DEV_OFFBOARD
1218# define IDE_HFLAG_OFF_BOARD IDE_HFLAG_BOOTABLE
1219#else
1220# define IDE_HFLAG_OFF_BOARD 0
1221#endif
1222
1223struct ide_port_info {
1224 char *name;
1225 unsigned int (*init_chipset)(struct pci_dev *, const char *);
1226 void (*init_iops)(ide_hwif_t *);
1227 void (*init_hwif)(ide_hwif_t *);
1228 void (*init_dma)(ide_hwif_t *, unsigned long);
1229 void (*fixup)(ide_hwif_t *);
1230 ide_pci_enablebit_t enablebits[2];
1231 hwif_chipset_t chipset;
1232 unsigned int extra;
1233 u32 host_flags;
1234 u8 pio_mask;
1235 u8 swdma_mask;
1236 u8 mwdma_mask;
1237 u8 udma_mask;
1238};
1239
1240int ide_setup_pci_device(struct pci_dev *, const struct ide_port_info *);
1241int ide_setup_pci_devices(struct pci_dev *, struct pci_dev *, const struct ide_port_info *);
1242
1243void ide_map_sg(ide_drive_t *, struct request *);
1244void ide_init_sg_cmd(ide_drive_t *, struct request *);
1245
1246#define BAD_DMA_DRIVE 0
1247#define GOOD_DMA_DRIVE 1
1248
1249struct drive_list_entry {
1250 const char *id_model;
1251 const char *id_firmware;
1252};
1253
1254int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *);
1255
1256#ifdef CONFIG_BLK_DEV_IDEDMA
1257int __ide_dma_bad_drive(ide_drive_t *);
1258int ide_id_dma_bug(ide_drive_t *);
1259
1260u8 ide_find_dma_mode(ide_drive_t *, u8);
1261
1262static inline u8 ide_max_dma_mode(ide_drive_t *drive)
1263{
1264 return ide_find_dma_mode(drive, XFER_UDMA_6);
1265}
1266
1267void ide_dma_off(ide_drive_t *);
1268int ide_set_dma(ide_drive_t *);
1269ide_startstop_t ide_dma_intr(ide_drive_t *);
1270
1271#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
1272extern int ide_build_sglist(ide_drive_t *, struct request *);
1273extern int ide_build_dmatable(ide_drive_t *, struct request *);
1274extern void ide_destroy_dmatable(ide_drive_t *);
1275extern int ide_release_dma(ide_hwif_t *);
1276extern void ide_setup_dma(ide_hwif_t *, unsigned long, unsigned int);
1277
1278void ide_dma_host_off(ide_drive_t *);
1279void ide_dma_off_quietly(ide_drive_t *);
1280void ide_dma_host_on(ide_drive_t *);
1281extern int __ide_dma_on(ide_drive_t *);
1282extern int ide_dma_setup(ide_drive_t *);
1283extern void ide_dma_start(ide_drive_t *);
1284extern int __ide_dma_end(ide_drive_t *);
1285extern void ide_dma_lost_irq(ide_drive_t *);
1286extern void ide_dma_timeout(ide_drive_t *);
1287#endif
1288
1289#else
1290static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; }
1291static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; }
1292static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; }
1293static inline void ide_dma_off(ide_drive_t *drive) { ; }
1294static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
1295static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
1296#endif
1297
1298#ifndef CONFIG_BLK_DEV_IDEDMA_PCI
1299static inline void ide_release_dma(ide_hwif_t *drive) {;}
1300#endif
1301
1302#ifdef CONFIG_BLK_DEV_IDEACPI
1303extern int ide_acpi_exec_tfs(ide_drive_t *drive);
1304extern void ide_acpi_get_timing(ide_hwif_t *hwif);
1305extern void ide_acpi_push_timing(ide_hwif_t *hwif);
1306extern void ide_acpi_init(ide_hwif_t *hwif);
1307extern void ide_acpi_set_state(ide_hwif_t *hwif, int on);
1308#else
1309static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; }
1310static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; }
1311static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; }
1312static inline void ide_acpi_init(ide_hwif_t *hwif) { ; }
1313static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
1314#endif
1315
1316extern int ide_hwif_request_regions(ide_hwif_t *hwif);
1317extern void ide_hwif_release_regions(ide_hwif_t* hwif);
1318extern void ide_unregister (unsigned int index);
1319
1320void ide_register_region(struct gendisk *);
1321void ide_unregister_region(struct gendisk *);
1322
1323void ide_undecoded_slave(ide_hwif_t *);
1324
1325int ide_device_add(u8 idx[4]);
1326
1327static inline void *ide_get_hwifdata (ide_hwif_t * hwif)
1328{
1329 return hwif->hwif_data;
1330}
1331
1332static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data)
1333{
1334 hwif->hwif_data = data;
1335}
1336
1337const char *ide_xfer_verbose(u8 mode);
1338extern void ide_toggle_bounce(ide_drive_t *drive, int on);
1339extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate);
1340
1341static inline int ide_dev_has_iordy(struct hd_driveid *id)
1342{
1343 return ((id->field_valid & 2) && (id->capability & 8)) ? 1 : 0;
1344}
1345
1346static inline int ide_dev_is_sata(struct hd_driveid *id)
1347{
1348
1349
1350
1351
1352
1353
1354 if (id->hw_config == 0 && (short)id->major_rev_num >= 0x0020)
1355 return 1;
1356 return 0;
1357}
1358
1359u8 ide_dump_status(ide_drive_t *, const char *, u8);
1360
1361typedef struct ide_pio_timings_s {
1362 int setup_time;
1363 int active_time;
1364 int cycle_time;
1365
1366} ide_pio_timings_t;
1367
1368unsigned int ide_pio_cycle_time(ide_drive_t *, u8);
1369u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8);
1370extern const ide_pio_timings_t ide_pio_timings[6];
1371
1372int ide_set_pio_mode(ide_drive_t *, u8);
1373int ide_set_dma_mode(ide_drive_t *, u8);
1374
1375void ide_set_pio(ide_drive_t *, u8);
1376
1377static inline void ide_set_max_pio(ide_drive_t *drive)
1378{
1379 ide_set_pio(drive, 255);
1380}
1381
1382extern spinlock_t ide_lock;
1383extern struct mutex ide_cfg_mtx;
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397#define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0)
1398
1399extern struct bus_type ide_bus_type;
1400
1401
1402#define ide_id_has_flush_cache(id) ((id)->cfs_enable_2 & 0x3000)
1403
1404
1405#define ide_id_has_flush_cache_ext(id) \
1406 (((id)->cfs_enable_2 & 0x2400) == 0x2400)
1407
1408static inline int hwif_to_node(ide_hwif_t *hwif)
1409{
1410 struct pci_dev *dev = hwif->pci_dev;
1411 return dev ? pcibus_to_node(dev->bus) : -1;
1412}
1413
1414static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive)
1415{
1416 ide_hwif_t *hwif = HWIF(drive);
1417
1418 return &hwif->drives[(drive->dn ^ 1) & 1];
1419}
1420
1421#endif
1422