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1 | #ifndef _IDE_H | |
2 | #define _IDE_H | |
3 | /* | |
4 | * linux/include/linux/ide.h | |
5 | * | |
6 | * Copyright (C) 1994-2002 Linus Torvalds & authors | |
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 | /* for request_sense */ | |
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 | * Probably not wise to fiddle with these | |
40 | */ | |
41 | #define IDE_DEFAULT_MAX_FAILURES 1 | |
42 | #define ERROR_MAX 8 /* Max read/write errors per sector */ | |
43 | #define ERROR_RESET 3 /* Reset controller every 4th retry */ | |
44 | #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ | |
45 | ||
46 | /* Error codes returned in rq->errors to the higher part of the driver. */ | |
47 | enum { | |
48 | IDE_DRV_ERROR_GENERAL = 101, | |
49 | IDE_DRV_ERROR_FILEMARK = 102, | |
50 | IDE_DRV_ERROR_EOD = 103, | |
51 | }; | |
52 | ||
53 | /* | |
54 | * Definitions for accessing IDE controller registers | |
55 | */ | |
56 | #define IDE_NR_PORTS (10) | |
57 | ||
58 | struct ide_io_ports { | |
59 | unsigned long data_addr; | |
60 | ||
61 | union { | |
62 | unsigned long error_addr; /* read: error */ | |
63 | unsigned long feature_addr; /* write: feature */ | |
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; /* read: status */ | |
75 | unsigned long command_addr; /* write: command */ | |
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) /* 16 possible ?? */ | |
93 | ||
94 | #define SATA_STATUS_OFFSET (0) | |
95 | #define SATA_ERROR_OFFSET (1) | |
96 | #define SATA_CONTROL_OFFSET (2) | |
97 | ||
98 | /* | |
99 | * Our Physical Region Descriptor (PRD) table should be large enough | |
100 | * to handle the biggest I/O request we are likely to see. Since requests | |
101 | * can have no more than 256 sectors, and since the typical blocksize is | |
102 | * two or more sectors, we could get by with a limit of 128 entries here for | |
103 | * the usual worst case. Most requests seem to include some contiguous blocks, | |
104 | * further reducing the number of table entries required. | |
105 | * | |
106 | * The driver reverts to PIO mode for individual requests that exceed | |
107 | * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling | |
108 | * 100% of all crazy scenarios here is not necessary. | |
109 | * | |
110 | * As it turns out though, we must allocate a full 4KB page for this, | |
111 | * so the two PRD tables (ide0 & ide1) will each get half of that, | |
112 | * allowing each to have about 256 entries (8 bytes each) from this. | |
113 | */ | |
114 | #define PRD_BYTES 8 | |
115 | #define PRD_ENTRIES 256 | |
116 | ||
117 | /* | |
118 | * Some more useful definitions | |
119 | */ | |
120 | #define PARTN_BITS 6 /* number of minor dev bits for partitions */ | |
121 | #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ | |
122 | #define SECTOR_SIZE 512 | |
123 | ||
124 | /* | |
125 | * Timeouts for various operations: | |
126 | */ | |
127 | enum { | |
128 | /* spec allows up to 20ms, but CF cards and SSD drives need more */ | |
129 | WAIT_DRQ = 1 * HZ, /* 1s */ | |
130 | /* some laptops are very slow */ | |
131 | WAIT_READY = 5 * HZ, /* 5s */ | |
132 | /* should be less than 3ms (?), if all ATAPI CD is closed at boot */ | |
133 | WAIT_PIDENTIFY = 10 * HZ, /* 10s */ | |
134 | /* worst case when spinning up */ | |
135 | WAIT_WORSTCASE = 30 * HZ, /* 30s */ | |
136 | /* maximum wait for an IRQ to happen */ | |
137 | WAIT_CMD = 10 * HZ, /* 10s */ | |
138 | /* Some drives require a longer IRQ timeout. */ | |
139 | WAIT_FLOPPY_CMD = 50 * HZ, /* 50s */ | |
140 | /* | |
141 | * Some drives (for example, Seagate STT3401A Travan) require a very | |
142 | * long timeout, because they don't return an interrupt or clear their | |
143 | * BSY bit until after the command completes (even retension commands). | |
144 | */ | |
145 | WAIT_TAPE_CMD = 900 * HZ, /* 900s */ | |
146 | /* minimum sleep time */ | |
147 | WAIT_MIN_SLEEP = HZ / 50, /* 20ms */ | |
148 | }; | |
149 | ||
150 | /* | |
151 | * Op codes for special requests to be handled by ide_special_rq(). | |
152 | * Values should be in the range of 0x20 to 0x3f. | |
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 | * hwif_chipset_t is used to keep track of the specific hardware | |
161 | * chipset used by each IDE interface, if known. | |
162 | */ | |
163 | enum { 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 | ||
170 | typedef u8 hwif_chipset_t; | |
171 | ||
172 | /* | |
173 | * Structure to hold all information about the location of this port | |
174 | */ | |
175 | struct 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; /* our irq number */ | |
182 | struct device *dev, *parent; | |
183 | unsigned long config; | |
184 | }; | |
185 | ||
186 | static 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 | * Now for the data we need to maintain per-drive: ide_drive_t | |
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 | * Special Driver Flags | |
213 | */ | |
214 | enum { | |
215 | IDE_SFLAG_SET_GEOMETRY = (1 << 0), | |
216 | IDE_SFLAG_RECALIBRATE = (1 << 1), | |
217 | IDE_SFLAG_SET_MULTMODE = (1 << 2), | |
218 | }; | |
219 | ||
220 | /* | |
221 | * Status returned from various ide_ functions | |
222 | */ | |
223 | typedef enum { | |
224 | ide_stopped, /* no drive operation was started */ | |
225 | ide_started, /* a drive operation was started, handler was set */ | |
226 | } ide_startstop_t; | |
227 | ||
228 | enum { | |
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 | ||
250 | enum { | |
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 | /* force 16-bit I/O operations */ | |
256 | IDE_TFLAG_IO_16BIT = (1 << 4), | |
257 | /* struct ide_cmd was allocated using kmalloc() */ | |
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 | ||
264 | enum { | |
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 | ||
271 | struct ide_taskfile { | |
272 | u8 data; /* 0: data byte (for TASKFILE ioctl) */ | |
273 | union { /* 1: */ | |
274 | u8 error; /* read: error */ | |
275 | u8 feature; /* write: feature */ | |
276 | }; | |
277 | u8 nsect; /* 2: number of sectors */ | |
278 | u8 lbal; /* 3: LBA low */ | |
279 | u8 lbam; /* 4: LBA mid */ | |
280 | u8 lbah; /* 5: LBA high */ | |
281 | u8 device; /* 6: device select */ | |
282 | union { /* 7: */ | |
283 | u8 status; /* read: status */ | |
284 | u8 command; /* write: command */ | |
285 | }; | |
286 | }; | |
287 | ||
288 | struct 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; /* for TASKFILE ioctl */ | |
300 | int protocol; | |
301 | ||
302 | int sg_nents; /* number of sg entries */ | |
303 | int orig_sg_nents; | |
304 | int sg_dma_direction; /* DMA transfer 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; /* copy of request */ | |
314 | }; | |
315 | ||
316 | /* ATAPI packet command flags */ | |
317 | enum { | |
318 | /* set when an error is considered normal - no retry (ide-tape) */ | |
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 | ||
330 | struct ide_atapi_pc { | |
331 | /* actual packet bytes */ | |
332 | u8 c[12]; | |
333 | /* incremented on each retry */ | |
334 | int retries; | |
335 | int error; | |
336 | ||
337 | /* bytes to transfer */ | |
338 | int req_xfer; | |
339 | ||
340 | /* the corresponding request */ | |
341 | struct request *rq; | |
342 | ||
343 | unsigned long flags; | |
344 | ||
345 | /* | |
346 | * those are more or less driver-specific and some of them are subject | |
347 | * to change/removal later. | |
348 | */ | |
349 | unsigned long timeout; | |
350 | }; | |
351 | ||
352 | struct ide_devset; | |
353 | struct ide_driver; | |
354 | ||
355 | #ifdef CONFIG_BLK_DEV_IDEACPI | |
356 | struct ide_acpi_drive_link; | |
357 | struct ide_acpi_hwif_link; | |
358 | #endif | |
359 | ||
360 | struct ide_drive_s; | |
361 | ||
362 | struct 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 | /* ATAPI device flags */ | |
378 | enum { | |
379 | IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), | |
380 | ||
381 | /* ide-cd */ | |
382 | /* Drive cannot eject the disc. */ | |
383 | IDE_AFLAG_NO_EJECT = (1 << 1), | |
384 | /* Drive is a pre ATAPI 1.2 drive. */ | |
385 | IDE_AFLAG_PRE_ATAPI12 = (1 << 2), | |
386 | /* TOC addresses are in BCD. */ | |
387 | IDE_AFLAG_TOCADDR_AS_BCD = (1 << 3), | |
388 | /* TOC track numbers are in BCD. */ | |
389 | IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 4), | |
390 | /* Saved TOC information is current. */ | |
391 | IDE_AFLAG_TOC_VALID = (1 << 6), | |
392 | /* We think that the drive door is locked. */ | |
393 | IDE_AFLAG_DOOR_LOCKED = (1 << 7), | |
394 | /* SET_CD_SPEED command is unsupported. */ | |
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 | /* ide-floppy */ | |
404 | /* Avoid commands not supported in Clik drive */ | |
405 | IDE_AFLAG_CLIK_DRIVE = (1 << 15), | |
406 | /* Requires BH algorithm for packets */ | |
407 | IDE_AFLAG_ZIP_DRIVE = (1 << 16), | |
408 | /* Supports format progress report */ | |
409 | IDE_AFLAG_SRFP = (1 << 17), | |
410 | ||
411 | /* ide-tape */ | |
412 | IDE_AFLAG_IGNORE_DSC = (1 << 18), | |
413 | /* 0 When the tape position is unknown */ | |
414 | IDE_AFLAG_ADDRESS_VALID = (1 << 19), | |
415 | /* Device already opened */ | |
416 | IDE_AFLAG_BUSY = (1 << 20), | |
417 | /* Attempt to auto-detect the current user block size */ | |
418 | IDE_AFLAG_DETECT_BS = (1 << 21), | |
419 | /* Currently on a filemark */ | |
420 | IDE_AFLAG_FILEMARK = (1 << 22), | |
421 | /* 0 = no tape is loaded, so we don't rewind after ejecting */ | |
422 | IDE_AFLAG_MEDIUM_PRESENT = (1 << 23), | |
423 | ||
424 | IDE_AFLAG_NO_AUTOCLOSE = (1 << 24), | |
425 | }; | |
426 | ||
427 | /* device flags */ | |
428 | enum { | |
429 | /* restore settings after device reset */ | |
430 | IDE_DFLAG_KEEP_SETTINGS = (1 << 0), | |
431 | /* device is using DMA for read/write */ | |
432 | IDE_DFLAG_USING_DMA = (1 << 1), | |
433 | /* okay to unmask other IRQs */ | |
434 | IDE_DFLAG_UNMASK = (1 << 2), | |
435 | /* don't attempt flushes */ | |
436 | IDE_DFLAG_NOFLUSH = (1 << 3), | |
437 | /* DSC overlap */ | |
438 | IDE_DFLAG_DSC_OVERLAP = (1 << 4), | |
439 | /* give potential excess bandwidth */ | |
440 | IDE_DFLAG_NICE1 = (1 << 5), | |
441 | /* device is physically present */ | |
442 | IDE_DFLAG_PRESENT = (1 << 6), | |
443 | /* disable Host Protected Area */ | |
444 | IDE_DFLAG_NOHPA = (1 << 7), | |
445 | /* id read from device (synthetic if not set) */ | |
446 | IDE_DFLAG_ID_READ = (1 << 8), | |
447 | IDE_DFLAG_NOPROBE = (1 << 9), | |
448 | /* need to do check_media_change() */ | |
449 | IDE_DFLAG_REMOVABLE = (1 << 10), | |
450 | /* needed for removable devices */ | |
451 | IDE_DFLAG_ATTACH = (1 << 11), | |
452 | IDE_DFLAG_FORCED_GEOM = (1 << 12), | |
453 | /* disallow setting unmask bit */ | |
454 | IDE_DFLAG_NO_UNMASK = (1 << 13), | |
455 | /* disallow enabling 32-bit I/O */ | |
456 | IDE_DFLAG_NO_IO_32BIT = (1 << 14), | |
457 | /* for removable only: door lock/unlock works */ | |
458 | IDE_DFLAG_DOORLOCKING = (1 << 15), | |
459 | /* disallow DMA */ | |
460 | IDE_DFLAG_NODMA = (1 << 16), | |
461 | /* powermanagment told us not to do anything, so sleep nicely */ | |
462 | IDE_DFLAG_BLOCKED = (1 << 17), | |
463 | /* sleeping & sleep field valid */ | |
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 | /* status of write cache */ | |
469 | IDE_DFLAG_WCACHE = (1 << 22), | |
470 | /* used for ignoring ATA_DF */ | |
471 | IDE_DFLAG_NOWERR = (1 << 23), | |
472 | /* retrying in PIO */ | |
473 | IDE_DFLAG_DMA_PIO_RETRY = (1 << 24), | |
474 | IDE_DFLAG_LBA = (1 << 25), | |
475 | /* don't unload heads */ | |
476 | IDE_DFLAG_NO_UNLOAD = (1 << 26), | |
477 | /* heads unloaded, please don't reset port */ | |
478 | IDE_DFLAG_PARKED = (1 << 27), | |
479 | IDE_DFLAG_MEDIA_CHANGED = (1 << 28), | |
480 | /* write protect */ | |
481 | IDE_DFLAG_WP = (1 << 29), | |
482 | IDE_DFLAG_FORMAT_IN_PROGRESS = (1 << 30), | |
483 | IDE_DFLAG_NIEN_QUIRK = (1 << 31), | |
484 | }; | |
485 | ||
486 | struct ide_drive_s { | |
487 | char name[4]; /* drive name, such as "hda" */ | |
488 | char driver_req[10]; /* requests specific driver */ | |
489 | ||
490 | struct request_queue *queue; /* request queue */ | |
491 | ||
492 | struct request *rq; /* current request */ | |
493 | void *driver_data; /* extra driver data */ | |
494 | u16 *id; /* identification info */ | |
495 | #ifdef CONFIG_IDE_PROC_FS | |
496 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ | |
497 | const struct ide_proc_devset *settings; /* /proc/ide/ drive settings */ | |
498 | #endif | |
499 | struct hwif_s *hwif; /* actually (ide_hwif_t *) */ | |
500 | ||
501 | const struct ide_disk_ops *disk_ops; | |
502 | ||
503 | unsigned long dev_flags; | |
504 | ||
505 | unsigned long sleep; /* sleep until this time */ | |
506 | unsigned long timeout; /* max time to wait for irq */ | |
507 | ||
508 | u8 special_flags; /* special action flags */ | |
509 | ||
510 | u8 select; /* basic drive/head select reg value */ | |
511 | u8 retry_pio; /* retrying dma capable host in pio */ | |
512 | u8 waiting_for_dma; /* dma currently in progress */ | |
513 | u8 dma; /* atapi dma flag */ | |
514 | ||
515 | u8 init_speed; /* transfer rate set at boot */ | |
516 | u8 current_speed; /* current transfer rate set */ | |
517 | u8 desired_speed; /* desired transfer rate set */ | |
518 | u8 pio_mode; /* for ->set_pio_mode _only_ */ | |
519 | u8 dma_mode; /* for ->dma_pio_mode _only_ */ | |
520 | u8 dn; /* now wide spread use */ | |
521 | u8 acoustic; /* acoustic management */ | |
522 | u8 media; /* disk, cdrom, tape, floppy, ... */ | |
523 | u8 ready_stat; /* min status value for drive ready */ | |
524 | u8 mult_count; /* current multiple sector setting */ | |
525 | u8 mult_req; /* requested multiple sector setting */ | |
526 | u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ | |
527 | u8 bad_wstat; /* used for ignoring ATA_DF */ | |
528 | u8 head; /* "real" number of heads */ | |
529 | u8 sect; /* "real" sectors per track */ | |
530 | u8 bios_head; /* BIOS/fdisk/LILO number of heads */ | |
531 | u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ | |
532 | ||
533 | /* delay this long before sending packet command */ | |
534 | u8 pc_delay; | |
535 | ||
536 | unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ | |
537 | unsigned int cyl; /* "real" number of cyls */ | |
538 | void *drive_data; /* used by set_pio_mode/dev_select() */ | |
539 | unsigned int failures; /* current failure count */ | |
540 | unsigned int max_failures; /* maximum allowed failure count */ | |
541 | u64 probed_capacity;/* initial/native media capacity */ | |
542 | u64 capacity64; /* total number of sectors */ | |
543 | ||
544 | int lun; /* logical unit */ | |
545 | int crc_count; /* crc counter to reduce drive speed */ | |
546 | ||
547 | unsigned long debug_mask; /* debugging levels switch */ | |
548 | ||
549 | #ifdef CONFIG_BLK_DEV_IDEACPI | |
550 | struct ide_acpi_drive_link *acpidata; | |
551 | #endif | |
552 | struct list_head list; | |
553 | struct device gendev; | |
554 | struct completion gendev_rel_comp; /* to deal with device release() */ | |
555 | ||
556 | /* current packet command */ | |
557 | struct ide_atapi_pc *pc; | |
558 | ||
559 | /* last failed packet command */ | |
560 | struct ide_atapi_pc *failed_pc; | |
561 | ||
562 | /* callback for packet commands */ | |
563 | int (*pc_callback)(struct ide_drive_s *, int); | |
564 | ||
565 | ide_startstop_t (*irq_handler)(struct ide_drive_s *); | |
566 | ||
567 | unsigned long atapi_flags; | |
568 | ||
569 | struct ide_atapi_pc request_sense_pc; | |
570 | ||
571 | /* current sense rq and buffer */ | |
572 | bool sense_rq_armed; | |
573 | struct request sense_rq; | |
574 | struct request_sense sense_data; | |
575 | }; | |
576 | ||
577 | typedef struct ide_drive_s ide_drive_t; | |
578 | ||
579 | #define to_ide_device(dev) container_of(dev, ide_drive_t, gendev) | |
580 | ||
581 | #define to_ide_drv(obj, cont_type) \ | |
582 | container_of(obj, struct cont_type, dev) | |
583 | ||
584 | #define ide_drv_g(disk, cont_type) \ | |
585 | container_of((disk)->private_data, struct cont_type, driver) | |
586 | ||
587 | struct ide_port_info; | |
588 | ||
589 | struct ide_tp_ops { | |
590 | void (*exec_command)(struct hwif_s *, u8); | |
591 | u8 (*read_status)(struct hwif_s *); | |
592 | u8 (*read_altstatus)(struct hwif_s *); | |
593 | void (*write_devctl)(struct hwif_s *, u8); | |
594 | ||
595 | void (*dev_select)(ide_drive_t *); | |
596 | void (*tf_load)(ide_drive_t *, struct ide_taskfile *, u8); | |
597 | void (*tf_read)(ide_drive_t *, struct ide_taskfile *, u8); | |
598 | ||
599 | void (*input_data)(ide_drive_t *, struct ide_cmd *, | |
600 | void *, unsigned int); | |
601 | void (*output_data)(ide_drive_t *, struct ide_cmd *, | |
602 | void *, unsigned int); | |
603 | }; | |
604 | ||
605 | extern const struct ide_tp_ops default_tp_ops; | |
606 | ||
607 | /** | |
608 | * struct ide_port_ops - IDE port operations | |
609 | * | |
610 | * @init_dev: host specific initialization of a device | |
611 | * @set_pio_mode: routine to program host for PIO mode | |
612 | * @set_dma_mode: routine to program host for DMA mode | |
613 | * @reset_poll: chipset polling based on hba specifics | |
614 | * @pre_reset: chipset specific changes to default for device-hba resets | |
615 | * @resetproc: routine to reset controller after a disk reset | |
616 | * @maskproc: special host masking for drive selection | |
617 | * @quirkproc: check host's drive quirk list | |
618 | * @clear_irq: clear IRQ | |
619 | * | |
620 | * @mdma_filter: filter MDMA modes | |
621 | * @udma_filter: filter UDMA modes | |
622 | * | |
623 | * @cable_detect: detect cable type | |
624 | */ | |
625 | struct ide_port_ops { | |
626 | void (*init_dev)(ide_drive_t *); | |
627 | void (*set_pio_mode)(struct hwif_s *, ide_drive_t *); | |
628 | void (*set_dma_mode)(ide_drive_t *, const u8); | |
629 | int (*reset_poll)(ide_drive_t *); | |
630 | void (*pre_reset)(ide_drive_t *); | |
631 | void (*resetproc)(ide_drive_t *); | |
632 | void (*maskproc)(ide_drive_t *, int); | |
633 | void (*quirkproc)(ide_drive_t *); | |
634 | void (*clear_irq)(ide_drive_t *); | |
635 | int (*test_irq)(struct hwif_s *); | |
636 | ||
637 | u8 (*mdma_filter)(ide_drive_t *); | |
638 | u8 (*udma_filter)(ide_drive_t *); | |
639 | ||
640 | u8 (*cable_detect)(struct hwif_s *); | |
641 | }; | |
642 | ||
643 | struct ide_dma_ops { | |
644 | void (*dma_host_set)(struct ide_drive_s *, int); | |
645 | int (*dma_setup)(struct ide_drive_s *, struct ide_cmd *); | |
646 | void (*dma_start)(struct ide_drive_s *); | |
647 | int (*dma_end)(struct ide_drive_s *); | |
648 | int (*dma_test_irq)(struct ide_drive_s *); | |
649 | void (*dma_lost_irq)(struct ide_drive_s *); | |
650 | /* below ones are optional */ | |
651 | int (*dma_check)(struct ide_drive_s *, struct ide_cmd *); | |
652 | int (*dma_timer_expiry)(struct ide_drive_s *); | |
653 | void (*dma_clear)(struct ide_drive_s *); | |
654 | /* | |
655 | * The following method is optional and only required to be | |
656 | * implemented for the SFF-8038i compatible controllers. | |
657 | */ | |
658 | u8 (*dma_sff_read_status)(struct hwif_s *); | |
659 | }; | |
660 | ||
661 | enum { | |
662 | IDE_PFLAG_PROBING = (1 << 0), | |
663 | }; | |
664 | ||
665 | struct ide_host; | |
666 | ||
667 | typedef struct hwif_s { | |
668 | struct hwif_s *mate; /* other hwif from same PCI chip */ | |
669 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ | |
670 | ||
671 | struct ide_host *host; | |
672 | ||
673 | char name[6]; /* name of interface, eg. "ide0" */ | |
674 | ||
675 | struct ide_io_ports io_ports; | |
676 | ||
677 | unsigned long sata_scr[SATA_NR_PORTS]; | |
678 | ||
679 | ide_drive_t *devices[MAX_DRIVES + 1]; | |
680 | ||
681 | unsigned long port_flags; | |
682 | ||
683 | u8 major; /* our major number */ | |
684 | u8 index; /* 0 for ide0; 1 for ide1; ... */ | |
685 | u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ | |
686 | ||
687 | u32 host_flags; | |
688 | ||
689 | u8 pio_mask; | |
690 | ||
691 | u8 ultra_mask; | |
692 | u8 mwdma_mask; | |
693 | u8 swdma_mask; | |
694 | ||
695 | u8 cbl; /* cable type */ | |
696 | ||
697 | hwif_chipset_t chipset; /* sub-module for tuning.. */ | |
698 | ||
699 | struct device *dev; | |
700 | ||
701 | void (*rw_disk)(ide_drive_t *, struct request *); | |
702 | ||
703 | const struct ide_tp_ops *tp_ops; | |
704 | const struct ide_port_ops *port_ops; | |
705 | const struct ide_dma_ops *dma_ops; | |
706 | ||
707 | /* dma physical region descriptor table (cpu view) */ | |
708 | unsigned int *dmatable_cpu; | |
709 | /* dma physical region descriptor table (dma view) */ | |
710 | dma_addr_t dmatable_dma; | |
711 | ||
712 | /* maximum number of PRD table entries */ | |
713 | int prd_max_nents; | |
714 | /* PRD entry size in bytes */ | |
715 | int prd_ent_size; | |
716 | ||
717 | /* Scatter-gather list used to build the above */ | |
718 | struct scatterlist *sg_table; | |
719 | int sg_max_nents; /* Maximum number of entries in it */ | |
720 | ||
721 | struct ide_cmd cmd; /* current command */ | |
722 | ||
723 | int rqsize; /* max sectors per request */ | |
724 | int irq; /* our irq number */ | |
725 | ||
726 | unsigned long dma_base; /* base addr for dma ports */ | |
727 | ||
728 | unsigned long config_data; /* for use by chipset-specific code */ | |
729 | unsigned long select_data; /* for use by chipset-specific code */ | |
730 | ||
731 | unsigned long extra_base; /* extra addr for dma ports */ | |
732 | unsigned extra_ports; /* number of extra dma ports */ | |
733 | ||
734 | unsigned present : 1; /* this interface exists */ | |
735 | unsigned busy : 1; /* serializes devices on a port */ | |
736 | ||
737 | struct device gendev; | |
738 | struct device *portdev; | |
739 | ||
740 | struct completion gendev_rel_comp; /* To deal with device release() */ | |
741 | ||
742 | void *hwif_data; /* extra hwif data */ | |
743 | ||
744 | #ifdef CONFIG_BLK_DEV_IDEACPI | |
745 | struct ide_acpi_hwif_link *acpidata; | |
746 | #endif | |
747 | ||
748 | /* IRQ handler, if active */ | |
749 | ide_startstop_t (*handler)(ide_drive_t *); | |
750 | ||
751 | /* BOOL: polling active & poll_timeout field valid */ | |
752 | unsigned int polling : 1; | |
753 | ||
754 | /* current drive */ | |
755 | ide_drive_t *cur_dev; | |
756 | ||
757 | /* current request */ | |
758 | struct request *rq; | |
759 | ||
760 | /* failsafe timer */ | |
761 | struct timer_list timer; | |
762 | /* timeout value during long polls */ | |
763 | unsigned long poll_timeout; | |
764 | /* queried upon timeouts */ | |
765 | int (*expiry)(ide_drive_t *); | |
766 | ||
767 | int req_gen; | |
768 | int req_gen_timer; | |
769 | ||
770 | spinlock_t lock; | |
771 | } ____cacheline_internodealigned_in_smp ide_hwif_t; | |
772 | ||
773 | #define MAX_HOST_PORTS 4 | |
774 | ||
775 | struct ide_host { | |
776 | ide_hwif_t *ports[MAX_HOST_PORTS + 1]; | |
777 | unsigned int n_ports; | |
778 | struct device *dev[2]; | |
779 | ||
780 | int (*init_chipset)(struct pci_dev *); | |
781 | ||
782 | void (*get_lock)(irq_handler_t, void *); | |
783 | void (*release_lock)(void); | |
784 | ||
785 | irq_handler_t irq_handler; | |
786 | ||
787 | unsigned long host_flags; | |
788 | ||
789 | int irq_flags; | |
790 | ||
791 | void *host_priv; | |
792 | ide_hwif_t *cur_port; /* for hosts requiring serialization */ | |
793 | ||
794 | /* used for hosts requiring serialization */ | |
795 | volatile unsigned long host_busy; | |
796 | }; | |
797 | ||
798 | #define IDE_HOST_BUSY 0 | |
799 | ||
800 | /* | |
801 | * internal ide interrupt handler type | |
802 | */ | |
803 | typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); | |
804 | typedef int (ide_expiry_t)(ide_drive_t *); | |
805 | ||
806 | /* used by ide-cd, ide-floppy, etc. */ | |
807 | typedef void (xfer_func_t)(ide_drive_t *, struct ide_cmd *, void *, unsigned); | |
808 | ||
809 | extern struct mutex ide_setting_mtx; | |
810 | ||
811 | /* | |
812 | * configurable drive settings | |
813 | */ | |
814 | ||
815 | #define DS_SYNC (1 << 0) | |
816 | ||
817 | struct ide_devset { | |
818 | int (*get)(ide_drive_t *); | |
819 | int (*set)(ide_drive_t *, int); | |
820 | unsigned int flags; | |
821 | }; | |
822 | ||
823 | #define __DEVSET(_flags, _get, _set) { \ | |
824 | .flags = _flags, \ | |
825 | .get = _get, \ | |
826 | .set = _set, \ | |
827 | } | |
828 | ||
829 | #define ide_devset_get(name, field) \ | |
830 | static int get_##name(ide_drive_t *drive) \ | |
831 | { \ | |
832 | return drive->field; \ | |
833 | } | |
834 | ||
835 | #define ide_devset_set(name, field) \ | |
836 | static int set_##name(ide_drive_t *drive, int arg) \ | |
837 | { \ | |
838 | drive->field = arg; \ | |
839 | return 0; \ | |
840 | } | |
841 | ||
842 | #define ide_devset_get_flag(name, flag) \ | |
843 | static int get_##name(ide_drive_t *drive) \ | |
844 | { \ | |
845 | return !!(drive->dev_flags & flag); \ | |
846 | } | |
847 | ||
848 | #define ide_devset_set_flag(name, flag) \ | |
849 | static int set_##name(ide_drive_t *drive, int arg) \ | |
850 | { \ | |
851 | if (arg) \ | |
852 | drive->dev_flags |= flag; \ | |
853 | else \ | |
854 | drive->dev_flags &= ~flag; \ | |
855 | return 0; \ | |
856 | } | |
857 | ||
858 | #define __IDE_DEVSET(_name, _flags, _get, _set) \ | |
859 | const struct ide_devset ide_devset_##_name = \ | |
860 | __DEVSET(_flags, _get, _set) | |
861 | ||
862 | #define IDE_DEVSET(_name, _flags, _get, _set) \ | |
863 | static __IDE_DEVSET(_name, _flags, _get, _set) | |
864 | ||
865 | #define ide_devset_rw(_name, _func) \ | |
866 | IDE_DEVSET(_name, 0, get_##_func, set_##_func) | |
867 | ||
868 | #define ide_devset_w(_name, _func) \ | |
869 | IDE_DEVSET(_name, 0, NULL, set_##_func) | |
870 | ||
871 | #define ide_ext_devset_rw(_name, _func) \ | |
872 | __IDE_DEVSET(_name, 0, get_##_func, set_##_func) | |
873 | ||
874 | #define ide_ext_devset_rw_sync(_name, _func) \ | |
875 | __IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func) | |
876 | ||
877 | #define ide_decl_devset(_name) \ | |
878 | extern const struct ide_devset ide_devset_##_name | |
879 | ||
880 | ide_decl_devset(io_32bit); | |
881 | ide_decl_devset(keepsettings); | |
882 | ide_decl_devset(pio_mode); | |
883 | ide_decl_devset(unmaskirq); | |
884 | ide_decl_devset(using_dma); | |
885 | ||
886 | #ifdef CONFIG_IDE_PROC_FS | |
887 | /* | |
888 | * /proc/ide interface | |
889 | */ | |
890 | ||
891 | #define ide_devset_rw_field(_name, _field) \ | |
892 | ide_devset_get(_name, _field); \ | |
893 | ide_devset_set(_name, _field); \ | |
894 | IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) | |
895 | ||
896 | #define ide_devset_rw_flag(_name, _field) \ | |
897 | ide_devset_get_flag(_name, _field); \ | |
898 | ide_devset_set_flag(_name, _field); \ | |
899 | IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) | |
900 | ||
901 | struct ide_proc_devset { | |
902 | const char *name; | |
903 | const struct ide_devset *setting; | |
904 | int min, max; | |
905 | int (*mulf)(ide_drive_t *); | |
906 | int (*divf)(ide_drive_t *); | |
907 | }; | |
908 | ||
909 | #define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \ | |
910 | .name = __stringify(_name), \ | |
911 | .setting = &ide_devset_##_name, \ | |
912 | .min = _min, \ | |
913 | .max = _max, \ | |
914 | .mulf = _mulf, \ | |
915 | .divf = _divf, \ | |
916 | } | |
917 | ||
918 | #define IDE_PROC_DEVSET(_name, _min, _max) \ | |
919 | __IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL) | |
920 | ||
921 | typedef struct { | |
922 | const char *name; | |
923 | mode_t mode; | |
924 | const struct file_operations *proc_fops; | |
925 | } ide_proc_entry_t; | |
926 | ||
927 | void proc_ide_create(void); | |
928 | void proc_ide_destroy(void); | |
929 | void ide_proc_register_port(ide_hwif_t *); | |
930 | void ide_proc_port_register_devices(ide_hwif_t *); | |
931 | void ide_proc_unregister_device(ide_drive_t *); | |
932 | void ide_proc_unregister_port(ide_hwif_t *); | |
933 | void ide_proc_register_driver(ide_drive_t *, struct ide_driver *); | |
934 | void ide_proc_unregister_driver(ide_drive_t *, struct ide_driver *); | |
935 | ||
936 | extern const struct file_operations ide_capacity_proc_fops; | |
937 | extern const struct file_operations ide_geometry_proc_fops; | |
938 | #else | |
939 | static inline void proc_ide_create(void) { ; } | |
940 | static inline void proc_ide_destroy(void) { ; } | |
941 | static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; } | |
942 | static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; } | |
943 | static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; } | |
944 | static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; } | |
945 | static inline void ide_proc_register_driver(ide_drive_t *drive, | |
946 | struct ide_driver *driver) { ; } | |
947 | static inline void ide_proc_unregister_driver(ide_drive_t *drive, | |
948 | struct ide_driver *driver) { ; } | |
949 | #endif | |
950 | ||
951 | enum { | |
952 | /* enter/exit functions */ | |
953 | IDE_DBG_FUNC = (1 << 0), | |
954 | /* sense key/asc handling */ | |
955 | IDE_DBG_SENSE = (1 << 1), | |
956 | /* packet commands handling */ | |
957 | IDE_DBG_PC = (1 << 2), | |
958 | /* request handling */ | |
959 | IDE_DBG_RQ = (1 << 3), | |
960 | /* driver probing/setup */ | |
961 | IDE_DBG_PROBE = (1 << 4), | |
962 | }; | |
963 | ||
964 | /* DRV_NAME has to be defined in the driver before using the macro below */ | |
965 | #define __ide_debug_log(lvl, fmt, args...) \ | |
966 | { \ | |
967 | if (unlikely(drive->debug_mask & lvl)) \ | |
968 | printk(KERN_INFO DRV_NAME ": %s: " fmt "\n", \ | |
969 | __func__, ## args); \ | |
970 | } | |
971 | ||
972 | /* | |
973 | * Power Management state machine (rq->pm->pm_step). | |
974 | * | |
975 | * For each step, the core calls ide_start_power_step() first. | |
976 | * This can return: | |
977 | * - ide_stopped : In this case, the core calls us back again unless | |
978 | * step have been set to ide_power_state_completed. | |
979 | * - ide_started : In this case, the channel is left busy until an | |
980 | * async event (interrupt) occurs. | |
981 | * Typically, ide_start_power_step() will issue a taskfile request with | |
982 | * do_rw_taskfile(). | |
983 | * | |
984 | * Upon reception of the interrupt, the core will call ide_complete_power_step() | |
985 | * with the error code if any. This routine should update the step value | |
986 | * and return. It should not start a new request. The core will call | |
987 | * ide_start_power_step() for the new step value, unless step have been | |
988 | * set to IDE_PM_COMPLETED. | |
989 | */ | |
990 | enum { | |
991 | IDE_PM_START_SUSPEND, | |
992 | IDE_PM_FLUSH_CACHE = IDE_PM_START_SUSPEND, | |
993 | IDE_PM_STANDBY, | |
994 | ||
995 | IDE_PM_START_RESUME, | |
996 | IDE_PM_RESTORE_PIO = IDE_PM_START_RESUME, | |
997 | IDE_PM_IDLE, | |
998 | IDE_PM_RESTORE_DMA, | |
999 | ||
1000 | IDE_PM_COMPLETED, | |
1001 | }; | |
1002 | ||
1003 | int generic_ide_suspend(struct device *, pm_message_t); | |
1004 | int generic_ide_resume(struct device *); | |
1005 | ||
1006 | void ide_complete_power_step(ide_drive_t *, struct request *); | |
1007 | ide_startstop_t ide_start_power_step(ide_drive_t *, struct request *); | |
1008 | void ide_complete_pm_rq(ide_drive_t *, struct request *); | |
1009 | void ide_check_pm_state(ide_drive_t *, struct request *); | |
1010 | ||
1011 | /* | |
1012 | * Subdrivers support. | |
1013 | * | |
1014 | * The gendriver.owner field should be set to the module owner of this driver. | |
1015 | * The gendriver.name field should be set to the name of this driver | |
1016 | */ | |
1017 | struct ide_driver { | |
1018 | const char *version; | |
1019 | ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); | |
1020 | struct device_driver gen_driver; | |
1021 | int (*probe)(ide_drive_t *); | |
1022 | void (*remove)(ide_drive_t *); | |
1023 | void (*resume)(ide_drive_t *); | |
1024 | void (*shutdown)(ide_drive_t *); | |
1025 | #ifdef CONFIG_IDE_PROC_FS | |
1026 | ide_proc_entry_t * (*proc_entries)(ide_drive_t *); | |
1027 | const struct ide_proc_devset * (*proc_devsets)(ide_drive_t *); | |
1028 | #endif | |
1029 | }; | |
1030 | ||
1031 | #define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver) | |
1032 | ||
1033 | int ide_device_get(ide_drive_t *); | |
1034 | void ide_device_put(ide_drive_t *); | |
1035 | ||
1036 | struct ide_ioctl_devset { | |
1037 | unsigned int get_ioctl; | |
1038 | unsigned int set_ioctl; | |
1039 | const struct ide_devset *setting; | |
1040 | }; | |
1041 | ||
1042 | int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int, | |
1043 | unsigned long, const struct ide_ioctl_devset *); | |
1044 | ||
1045 | int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned long); | |
1046 | ||
1047 | extern int ide_vlb_clk; | |
1048 | extern int ide_pci_clk; | |
1049 | ||
1050 | int ide_end_rq(ide_drive_t *, struct request *, int, unsigned int); | |
1051 | void ide_kill_rq(ide_drive_t *, struct request *); | |
1052 | ||
1053 | void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int); | |
1054 | void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int); | |
1055 | ||
1056 | void ide_execute_command(ide_drive_t *, struct ide_cmd *, ide_handler_t *, | |
1057 | unsigned int); | |
1058 | ||
1059 | void ide_pad_transfer(ide_drive_t *, int, int); | |
1060 | ||
1061 | ide_startstop_t ide_error(ide_drive_t *, const char *, u8); | |
1062 | ||
1063 | void ide_fix_driveid(u16 *); | |
1064 | ||
1065 | extern void ide_fixstring(u8 *, const int, const int); | |
1066 | ||
1067 | int ide_busy_sleep(ide_drive_t *, unsigned long, int); | |
1068 | ||
1069 | int __ide_wait_stat(ide_drive_t *, u8, u8, unsigned long, u8 *); | |
1070 | int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); | |
1071 | ||
1072 | ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *); | |
1073 | ide_startstop_t ide_do_devset(ide_drive_t *, struct request *); | |
1074 | ||
1075 | extern ide_startstop_t ide_do_reset (ide_drive_t *); | |
1076 | ||
1077 | extern int ide_devset_execute(ide_drive_t *drive, | |
1078 | const struct ide_devset *setting, int arg); | |
1079 | ||
1080 | void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8); | |
1081 | int ide_complete_rq(ide_drive_t *, int, unsigned int); | |
1082 | ||
1083 | void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd); | |
1084 | void ide_tf_dump(const char *, struct ide_cmd *); | |
1085 | ||
1086 | void ide_exec_command(ide_hwif_t *, u8); | |
1087 | u8 ide_read_status(ide_hwif_t *); | |
1088 | u8 ide_read_altstatus(ide_hwif_t *); | |
1089 | void ide_write_devctl(ide_hwif_t *, u8); | |
1090 | ||
1091 | void ide_dev_select(ide_drive_t *); | |
1092 | void ide_tf_load(ide_drive_t *, struct ide_taskfile *, u8); | |
1093 | void ide_tf_read(ide_drive_t *, struct ide_taskfile *, u8); | |
1094 | ||
1095 | void ide_input_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int); | |
1096 | void ide_output_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int); | |
1097 | ||
1098 | void SELECT_MASK(ide_drive_t *, int); | |
1099 | ||
1100 | u8 ide_read_error(ide_drive_t *); | |
1101 | void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); | |
1102 | ||
1103 | int ide_check_ireason(ide_drive_t *, struct request *, int, int, int); | |
1104 | ||
1105 | int ide_check_atapi_device(ide_drive_t *, const char *); | |
1106 | ||
1107 | void ide_init_pc(struct ide_atapi_pc *); | |
1108 | ||
1109 | /* Disk head parking */ | |
1110 | extern wait_queue_head_t ide_park_wq; | |
1111 | ssize_t ide_park_show(struct device *dev, struct device_attribute *attr, | |
1112 | char *buf); | |
1113 | ssize_t ide_park_store(struct device *dev, struct device_attribute *attr, | |
1114 | const char *buf, size_t len); | |
1115 | ||
1116 | /* | |
1117 | * Special requests for ide-tape block device strategy routine. | |
1118 | * | |
1119 | * In order to service a character device command, we add special requests to | |
1120 | * the tail of our block device request queue and wait for their completion. | |
1121 | */ | |
1122 | enum { | |
1123 | REQ_IDETAPE_PC1 = (1 << 0), /* packet command (first stage) */ | |
1124 | REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */ | |
1125 | REQ_IDETAPE_READ = (1 << 2), | |
1126 | REQ_IDETAPE_WRITE = (1 << 3), | |
1127 | }; | |
1128 | ||
1129 | int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *, | |
1130 | void *, unsigned int); | |
1131 | ||
1132 | int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *); | |
1133 | int ide_do_start_stop(ide_drive_t *, struct gendisk *, int); | |
1134 | int ide_set_media_lock(ide_drive_t *, struct gendisk *, int); | |
1135 | void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *); | |
1136 | void ide_retry_pc(ide_drive_t *drive); | |
1137 | ||
1138 | void ide_prep_sense(ide_drive_t *drive, struct request *rq); | |
1139 | int ide_queue_sense_rq(ide_drive_t *drive, void *special); | |
1140 | ||
1141 | int ide_cd_expiry(ide_drive_t *); | |
1142 | ||
1143 | int ide_cd_get_xferlen(struct request *); | |
1144 | ||
1145 | ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_cmd *); | |
1146 | ||
1147 | ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *); | |
1148 | ||
1149 | void ide_pio_bytes(ide_drive_t *, struct ide_cmd *, unsigned int, unsigned int); | |
1150 | ||
1151 | void ide_finish_cmd(ide_drive_t *, struct ide_cmd *, u8); | |
1152 | ||
1153 | int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16); | |
1154 | int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *); | |
1155 | ||
1156 | int ide_taskfile_ioctl(ide_drive_t *, unsigned long); | |
1157 | ||
1158 | int ide_dev_read_id(ide_drive_t *, u8, u16 *, int); | |
1159 | ||
1160 | extern int ide_driveid_update(ide_drive_t *); | |
1161 | extern int ide_config_drive_speed(ide_drive_t *, u8); | |
1162 | extern u8 eighty_ninty_three (ide_drive_t *); | |
1163 | extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); | |
1164 | ||
1165 | extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); | |
1166 | ||
1167 | extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); | |
1168 | ||
1169 | extern void ide_timer_expiry(unsigned long); | |
1170 | extern irqreturn_t ide_intr(int irq, void *dev_id); | |
1171 | extern void do_ide_request(struct request_queue *); | |
1172 | ||
1173 | void ide_init_disk(struct gendisk *, ide_drive_t *); | |
1174 | ||
1175 | #ifdef CONFIG_IDEPCI_PCIBUS_ORDER | |
1176 | extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); | |
1177 | #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME) | |
1178 | #else | |
1179 | #define ide_pci_register_driver(d) pci_register_driver(d) | |
1180 | #endif | |
1181 | ||
1182 | static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev) | |
1183 | { | |
1184 | if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) | |
1185 | return 1; | |
1186 | return 0; | |
1187 | } | |
1188 | ||
1189 | void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, | |
1190 | struct ide_hw *, struct ide_hw **); | |
1191 | void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); | |
1192 | ||
1193 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI | |
1194 | int ide_pci_set_master(struct pci_dev *, const char *); | |
1195 | unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); | |
1196 | int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *); | |
1197 | int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); | |
1198 | #else | |
1199 | static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, | |
1200 | const struct ide_port_info *d) | |
1201 | { | |
1202 | return -EINVAL; | |
1203 | } | |
1204 | #endif | |
1205 | ||
1206 | struct ide_pci_enablebit { | |
1207 | u8 reg; /* byte pci reg holding the enable-bit */ | |
1208 | u8 mask; /* mask to isolate the enable-bit */ | |
1209 | u8 val; /* value of masked reg when "enabled" */ | |
1210 | }; | |
1211 | ||
1212 | enum { | |
1213 | /* Uses ISA control ports not PCI ones. */ | |
1214 | IDE_HFLAG_ISA_PORTS = (1 << 0), | |
1215 | /* single port device */ | |
1216 | IDE_HFLAG_SINGLE = (1 << 1), | |
1217 | /* don't use legacy PIO blacklist */ | |
1218 | IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2), | |
1219 | /* set for the second port of QD65xx */ | |
1220 | IDE_HFLAG_QD_2ND_PORT = (1 << 3), | |
1221 | /* use PIO8/9 for prefetch off/on */ | |
1222 | IDE_HFLAG_ABUSE_PREFETCH = (1 << 4), | |
1223 | /* use PIO6/7 for fast-devsel off/on */ | |
1224 | IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5), | |
1225 | /* use 100-102 and 200-202 PIO values to set DMA modes */ | |
1226 | IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6), | |
1227 | /* | |
1228 | * keep DMA setting when programming PIO mode, may be used only | |
1229 | * for hosts which have separate PIO and DMA timings (ie. PMAC) | |
1230 | */ | |
1231 | IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7), | |
1232 | /* program host for the transfer mode after programming device */ | |
1233 | IDE_HFLAG_POST_SET_MODE = (1 << 8), | |
1234 | /* don't program host/device for the transfer mode ("smart" hosts) */ | |
1235 | IDE_HFLAG_NO_SET_MODE = (1 << 9), | |
1236 | /* trust BIOS for programming chipset/device for DMA */ | |
1237 | IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10), | |
1238 | /* host is CS5510/CS5520 */ | |
1239 | IDE_HFLAG_CS5520 = (1 << 11), | |
1240 | /* ATAPI DMA is unsupported */ | |
1241 | IDE_HFLAG_NO_ATAPI_DMA = (1 << 12), | |
1242 | /* set if host is a "non-bootable" controller */ | |
1243 | IDE_HFLAG_NON_BOOTABLE = (1 << 13), | |
1244 | /* host doesn't support DMA */ | |
1245 | IDE_HFLAG_NO_DMA = (1 << 14), | |
1246 | /* check if host is PCI IDE device before allowing DMA */ | |
1247 | IDE_HFLAG_NO_AUTODMA = (1 << 15), | |
1248 | /* host uses MMIO */ | |
1249 | IDE_HFLAG_MMIO = (1 << 16), | |
1250 | /* no LBA48 */ | |
1251 | IDE_HFLAG_NO_LBA48 = (1 << 17), | |
1252 | /* no LBA48 DMA */ | |
1253 | IDE_HFLAG_NO_LBA48_DMA = (1 << 18), | |
1254 | /* data FIFO is cleared by an error */ | |
1255 | IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19), | |
1256 | /* serialize ports */ | |
1257 | IDE_HFLAG_SERIALIZE = (1 << 20), | |
1258 | /* host is DTC2278 */ | |
1259 | IDE_HFLAG_DTC2278 = (1 << 21), | |
1260 | /* 4 devices on a single set of I/O ports */ | |
1261 | IDE_HFLAG_4DRIVES = (1 << 22), | |
1262 | /* host is TRM290 */ | |
1263 | IDE_HFLAG_TRM290 = (1 << 23), | |
1264 | /* use 32-bit I/O ops */ | |
1265 | IDE_HFLAG_IO_32BIT = (1 << 24), | |
1266 | /* unmask IRQs */ | |
1267 | IDE_HFLAG_UNMASK_IRQS = (1 << 25), | |
1268 | IDE_HFLAG_BROKEN_ALTSTATUS = (1 << 26), | |
1269 | /* serialize ports if DMA is possible (for sl82c105) */ | |
1270 | IDE_HFLAG_SERIALIZE_DMA = (1 << 27), | |
1271 | /* force host out of "simplex" mode */ | |
1272 | IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28), | |
1273 | /* DSC overlap is unsupported */ | |
1274 | IDE_HFLAG_NO_DSC = (1 << 29), | |
1275 | /* never use 32-bit I/O ops */ | |
1276 | IDE_HFLAG_NO_IO_32BIT = (1 << 30), | |
1277 | /* never unmask IRQs */ | |
1278 | IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31), | |
1279 | }; | |
1280 | ||
1281 | #ifdef CONFIG_BLK_DEV_OFFBOARD | |
1282 | # define IDE_HFLAG_OFF_BOARD 0 | |
1283 | #else | |
1284 | # define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE | |
1285 | #endif | |
1286 | ||
1287 | struct ide_port_info { | |
1288 | char *name; | |
1289 | ||
1290 | int (*init_chipset)(struct pci_dev *); | |
1291 | ||
1292 | void (*get_lock)(irq_handler_t, void *); | |
1293 | void (*release_lock)(void); | |
1294 | ||
1295 | void (*init_iops)(ide_hwif_t *); | |
1296 | void (*init_hwif)(ide_hwif_t *); | |
1297 | int (*init_dma)(ide_hwif_t *, | |
1298 | const struct ide_port_info *); | |
1299 | ||
1300 | const struct ide_tp_ops *tp_ops; | |
1301 | const struct ide_port_ops *port_ops; | |
1302 | const struct ide_dma_ops *dma_ops; | |
1303 | ||
1304 | struct ide_pci_enablebit enablebits[2]; | |
1305 | ||
1306 | hwif_chipset_t chipset; | |
1307 | ||
1308 | u16 max_sectors; /* if < than the default one */ | |
1309 | ||
1310 | u32 host_flags; | |
1311 | ||
1312 | int irq_flags; | |
1313 | ||
1314 | u8 pio_mask; | |
1315 | u8 swdma_mask; | |
1316 | u8 mwdma_mask; | |
1317 | u8 udma_mask; | |
1318 | }; | |
1319 | ||
1320 | int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *); | |
1321 | int ide_pci_init_two(struct pci_dev *, struct pci_dev *, | |
1322 | const struct ide_port_info *, void *); | |
1323 | void ide_pci_remove(struct pci_dev *); | |
1324 | ||
1325 | #ifdef CONFIG_PM | |
1326 | int ide_pci_suspend(struct pci_dev *, pm_message_t); | |
1327 | int ide_pci_resume(struct pci_dev *); | |
1328 | #else | |
1329 | #define ide_pci_suspend NULL | |
1330 | #define ide_pci_resume NULL | |
1331 | #endif | |
1332 | ||
1333 | void ide_map_sg(ide_drive_t *, struct ide_cmd *); | |
1334 | void ide_init_sg_cmd(struct ide_cmd *, unsigned int); | |
1335 | ||
1336 | #define BAD_DMA_DRIVE 0 | |
1337 | #define GOOD_DMA_DRIVE 1 | |
1338 | ||
1339 | struct drive_list_entry { | |
1340 | const char *id_model; | |
1341 | const char *id_firmware; | |
1342 | }; | |
1343 | ||
1344 | int ide_in_drive_list(u16 *, const struct drive_list_entry *); | |
1345 | ||
1346 | #ifdef CONFIG_BLK_DEV_IDEDMA | |
1347 | int ide_dma_good_drive(ide_drive_t *); | |
1348 | int __ide_dma_bad_drive(ide_drive_t *); | |
1349 | ||
1350 | u8 ide_find_dma_mode(ide_drive_t *, u8); | |
1351 | ||
1352 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) | |
1353 | { | |
1354 | return ide_find_dma_mode(drive, XFER_UDMA_6); | |
1355 | } | |
1356 | ||
1357 | void ide_dma_off_quietly(ide_drive_t *); | |
1358 | void ide_dma_off(ide_drive_t *); | |
1359 | void ide_dma_on(ide_drive_t *); | |
1360 | int ide_set_dma(ide_drive_t *); | |
1361 | void ide_check_dma_crc(ide_drive_t *); | |
1362 | ide_startstop_t ide_dma_intr(ide_drive_t *); | |
1363 | ||
1364 | int ide_allocate_dma_engine(ide_hwif_t *); | |
1365 | void ide_release_dma_engine(ide_hwif_t *); | |
1366 | ||
1367 | int ide_dma_prepare(ide_drive_t *, struct ide_cmd *); | |
1368 | void ide_dma_unmap_sg(ide_drive_t *, struct ide_cmd *); | |
1369 | ||
1370 | #ifdef CONFIG_BLK_DEV_IDEDMA_SFF | |
1371 | int config_drive_for_dma(ide_drive_t *); | |
1372 | int ide_build_dmatable(ide_drive_t *, struct ide_cmd *); | |
1373 | void ide_dma_host_set(ide_drive_t *, int); | |
1374 | int ide_dma_setup(ide_drive_t *, struct ide_cmd *); | |
1375 | extern void ide_dma_start(ide_drive_t *); | |
1376 | int ide_dma_end(ide_drive_t *); | |
1377 | int ide_dma_test_irq(ide_drive_t *); | |
1378 | int ide_dma_sff_timer_expiry(ide_drive_t *); | |
1379 | u8 ide_dma_sff_read_status(ide_hwif_t *); | |
1380 | extern const struct ide_dma_ops sff_dma_ops; | |
1381 | #else | |
1382 | static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; } | |
1383 | #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */ | |
1384 | ||
1385 | void ide_dma_lost_irq(ide_drive_t *); | |
1386 | ide_startstop_t ide_dma_timeout_retry(ide_drive_t *, int); | |
1387 | ||
1388 | #else | |
1389 | static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } | |
1390 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } | |
1391 | static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; } | |
1392 | static inline void ide_dma_off(ide_drive_t *drive) { ; } | |
1393 | static inline void ide_dma_on(ide_drive_t *drive) { ; } | |
1394 | static inline void ide_dma_verbose(ide_drive_t *drive) { ; } | |
1395 | static inline int ide_set_dma(ide_drive_t *drive) { return 1; } | |
1396 | static inline void ide_check_dma_crc(ide_drive_t *drive) { ; } | |
1397 | static inline ide_startstop_t ide_dma_intr(ide_drive_t *drive) { return ide_stopped; } | |
1398 | static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; } | |
1399 | static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; } | |
1400 | static inline int ide_dma_prepare(ide_drive_t *drive, | |
1401 | struct ide_cmd *cmd) { return 1; } | |
1402 | static inline void ide_dma_unmap_sg(ide_drive_t *drive, | |
1403 | struct ide_cmd *cmd) { ; } | |
1404 | #endif /* CONFIG_BLK_DEV_IDEDMA */ | |
1405 | ||
1406 | #ifdef CONFIG_BLK_DEV_IDEACPI | |
1407 | int ide_acpi_init(void); | |
1408 | bool ide_port_acpi(ide_hwif_t *hwif); | |
1409 | extern int ide_acpi_exec_tfs(ide_drive_t *drive); | |
1410 | extern void ide_acpi_get_timing(ide_hwif_t *hwif); | |
1411 | extern void ide_acpi_push_timing(ide_hwif_t *hwif); | |
1412 | void ide_acpi_init_port(ide_hwif_t *); | |
1413 | void ide_acpi_port_init_devices(ide_hwif_t *); | |
1414 | extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); | |
1415 | #else | |
1416 | static inline int ide_acpi_init(void) { return 0; } | |
1417 | static inline bool ide_port_acpi(ide_hwif_t *hwif) { return 0; } | |
1418 | static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } | |
1419 | static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } | |
1420 | static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } | |
1421 | static inline void ide_acpi_init_port(ide_hwif_t *hwif) { ; } | |
1422 | static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; } | |
1423 | static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {} | |
1424 | #endif | |
1425 | ||
1426 | void ide_register_region(struct gendisk *); | |
1427 | void ide_unregister_region(struct gendisk *); | |
1428 | ||
1429 | void ide_check_nien_quirk_list(ide_drive_t *); | |
1430 | void ide_undecoded_slave(ide_drive_t *); | |
1431 | ||
1432 | void ide_port_apply_params(ide_hwif_t *); | |
1433 | int ide_sysfs_register_port(ide_hwif_t *); | |
1434 | ||
1435 | struct ide_host *ide_host_alloc(const struct ide_port_info *, struct ide_hw **, | |
1436 | unsigned int); | |
1437 | void ide_host_free(struct ide_host *); | |
1438 | int ide_host_register(struct ide_host *, const struct ide_port_info *, | |
1439 | struct ide_hw **); | |
1440 | int ide_host_add(const struct ide_port_info *, struct ide_hw **, unsigned int, | |
1441 | struct ide_host **); | |
1442 | void ide_host_remove(struct ide_host *); | |
1443 | int ide_legacy_device_add(const struct ide_port_info *, unsigned long); | |
1444 | void ide_port_unregister_devices(ide_hwif_t *); | |
1445 | void ide_port_scan(ide_hwif_t *); | |
1446 | ||
1447 | static inline void *ide_get_hwifdata (ide_hwif_t * hwif) | |
1448 | { | |
1449 | return hwif->hwif_data; | |
1450 | } | |
1451 | ||
1452 | static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) | |
1453 | { | |
1454 | hwif->hwif_data = data; | |
1455 | } | |
1456 | ||
1457 | extern void ide_toggle_bounce(ide_drive_t *drive, int on); | |
1458 | ||
1459 | u64 ide_get_lba_addr(struct ide_cmd *, int); | |
1460 | u8 ide_dump_status(ide_drive_t *, const char *, u8); | |
1461 | ||
1462 | struct ide_timing { | |
1463 | u8 mode; | |
1464 | u8 setup; /* t1 */ | |
1465 | u16 act8b; /* t2 for 8-bit io */ | |
1466 | u16 rec8b; /* t2i for 8-bit io */ | |
1467 | u16 cyc8b; /* t0 for 8-bit io */ | |
1468 | u16 active; /* t2 or tD */ | |
1469 | u16 recover; /* t2i or tK */ | |
1470 | u16 cycle; /* t0 */ | |
1471 | u16 udma; /* t2CYCTYP/2 */ | |
1472 | }; | |
1473 | ||
1474 | enum { | |
1475 | IDE_TIMING_SETUP = (1 << 0), | |
1476 | IDE_TIMING_ACT8B = (1 << 1), | |
1477 | IDE_TIMING_REC8B = (1 << 2), | |
1478 | IDE_TIMING_CYC8B = (1 << 3), | |
1479 | IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B | | |
1480 | IDE_TIMING_CYC8B, | |
1481 | IDE_TIMING_ACTIVE = (1 << 4), | |
1482 | IDE_TIMING_RECOVER = (1 << 5), | |
1483 | IDE_TIMING_CYCLE = (1 << 6), | |
1484 | IDE_TIMING_UDMA = (1 << 7), | |
1485 | IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT | | |
1486 | IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER | | |
1487 | IDE_TIMING_CYCLE | IDE_TIMING_UDMA, | |
1488 | }; | |
1489 | ||
1490 | struct ide_timing *ide_timing_find_mode(u8); | |
1491 | u16 ide_pio_cycle_time(ide_drive_t *, u8); | |
1492 | void ide_timing_merge(struct ide_timing *, struct ide_timing *, | |
1493 | struct ide_timing *, unsigned int); | |
1494 | int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int); | |
1495 | ||
1496 | #ifdef CONFIG_IDE_XFER_MODE | |
1497 | int ide_scan_pio_blacklist(char *); | |
1498 | const char *ide_xfer_verbose(u8); | |
1499 | u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8); | |
1500 | int ide_pio_need_iordy(ide_drive_t *, const u8); | |
1501 | int ide_set_pio_mode(ide_drive_t *, u8); | |
1502 | int ide_set_dma_mode(ide_drive_t *, u8); | |
1503 | void ide_set_pio(ide_drive_t *, u8); | |
1504 | int ide_set_xfer_rate(ide_drive_t *, u8); | |
1505 | #else | |
1506 | static inline void ide_set_pio(ide_drive_t *drive, u8 pio) { ; } | |
1507 | static inline int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) { return -1; } | |
1508 | #endif | |
1509 | ||
1510 | static inline void ide_set_max_pio(ide_drive_t *drive) | |
1511 | { | |
1512 | ide_set_pio(drive, 255); | |
1513 | } | |
1514 | ||
1515 | char *ide_media_string(ide_drive_t *); | |
1516 | ||
1517 | extern struct device_attribute ide_dev_attrs[]; | |
1518 | extern struct bus_type ide_bus_type; | |
1519 | extern struct class *ide_port_class; | |
1520 | ||
1521 | static inline void ide_dump_identify(u8 *id) | |
1522 | { | |
1523 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); | |
1524 | } | |
1525 | ||
1526 | static inline int hwif_to_node(ide_hwif_t *hwif) | |
1527 | { | |
1528 | return hwif->dev ? dev_to_node(hwif->dev) : -1; | |
1529 | } | |
1530 | ||
1531 | static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) | |
1532 | { | |
1533 | ide_drive_t *peer = drive->hwif->devices[(drive->dn ^ 1) & 1]; | |
1534 | ||
1535 | return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL; | |
1536 | } | |
1537 | ||
1538 | static inline void *ide_get_drivedata(ide_drive_t *drive) | |
1539 | { | |
1540 | return drive->drive_data; | |
1541 | } | |
1542 | ||
1543 | static inline void ide_set_drivedata(ide_drive_t *drive, void *data) | |
1544 | { | |
1545 | drive->drive_data = data; | |
1546 | } | |
1547 | ||
1548 | #define ide_port_for_each_dev(i, dev, port) \ | |
1549 | for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) | |
1550 | ||
1551 | #define ide_port_for_each_present_dev(i, dev, port) \ | |
1552 | for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \ | |
1553 | if ((dev)->dev_flags & IDE_DFLAG_PRESENT) | |
1554 | ||
1555 | #define ide_host_for_each_port(i, port, host) \ | |
1556 | for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++) | |
1557 | ||
1558 | #endif /* _IDE_H */ |