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1da177e4 LT |
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 | ||
1da177e4 LT |
9 | #include <linux/init.h> |
10 | #include <linux/ioport.h> | |
3ceca727 | 11 | #include <linux/ata.h> |
1da177e4 LT |
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> | |
f36d4024 | 19 | #include <linux/completion.h> |
feb22b7f | 20 | #include <linux/pm.h> |
e3a59b4d HR |
21 | #ifdef CONFIG_BLK_DEV_IDEACPI |
22 | #include <acpi/acpi.h> | |
23 | #endif | |
1da177e4 LT |
24 | #include <asm/byteorder.h> |
25 | #include <asm/system.h> | |
26 | #include <asm/io.h> | |
f9383c42 | 27 | #include <asm/mutex.h> |
1da177e4 | 28 | |
729d4de9 | 29 | #if defined(CONFIG_CRIS) || defined(CONFIG_FRV) |
4ee06b7e BZ |
30 | # define SUPPORT_VLB_SYNC 0 |
31 | #else | |
32 | # define SUPPORT_VLB_SYNC 1 | |
1da177e4 LT |
33 | #endif |
34 | ||
35 | /* | |
36 | * Used to indicate "no IRQ", should be a value that cannot be an IRQ | |
37 | * number. | |
38 | */ | |
39 | ||
40 | #define IDE_NO_IRQ (-1) | |
41 | ||
1da177e4 LT |
42 | typedef unsigned char byte; /* used everywhere */ |
43 | ||
44 | /* | |
45 | * Probably not wise to fiddle with these | |
46 | */ | |
47 | #define ERROR_MAX 8 /* Max read/write errors per sector */ | |
48 | #define ERROR_RESET 3 /* Reset controller every 4th retry */ | |
49 | #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ | |
50 | ||
1da177e4 LT |
51 | #define HWIF(drive) ((ide_hwif_t *)((drive)->hwif)) |
52 | #define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup)) | |
53 | ||
54 | /* | |
55 | * Definitions for accessing IDE controller registers | |
56 | */ | |
57 | #define IDE_NR_PORTS (10) | |
58 | ||
4c3032d8 BZ |
59 | struct ide_io_ports { |
60 | unsigned long data_addr; | |
61 | ||
62 | union { | |
63 | unsigned long error_addr; /* read: error */ | |
64 | unsigned long feature_addr; /* write: feature */ | |
65 | }; | |
66 | ||
67 | unsigned long nsect_addr; | |
68 | unsigned long lbal_addr; | |
69 | unsigned long lbam_addr; | |
70 | unsigned long lbah_addr; | |
71 | ||
72 | unsigned long device_addr; | |
73 | ||
74 | union { | |
75 | unsigned long status_addr; /* read: status */ | |
76 | unsigned long command_addr; /* write: command */ | |
77 | }; | |
78 | ||
79 | unsigned long ctl_addr; | |
80 | ||
81 | unsigned long irq_addr; | |
82 | }; | |
1da177e4 LT |
83 | |
84 | #define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) | |
1da177e4 | 85 | |
3a7d2484 BZ |
86 | #define BAD_R_STAT (ATA_BUSY | ATA_ERR) |
87 | #define BAD_W_STAT (BAD_R_STAT | ATA_DF) | |
88 | #define BAD_STAT (BAD_R_STAT | ATA_DRQ) | |
89 | #define DRIVE_READY (ATA_DRDY | ATA_DSC) | |
90 | ||
91 | #define BAD_CRC (ATA_ABORTED | ATA_ICRC) | |
1da177e4 LT |
92 | |
93 | #define SATA_NR_PORTS (3) /* 16 possible ?? */ | |
94 | ||
95 | #define SATA_STATUS_OFFSET (0) | |
1da177e4 | 96 | #define SATA_ERROR_OFFSET (1) |
1da177e4 | 97 | #define SATA_CONTROL_OFFSET (2) |
1da177e4 | 98 | |
1da177e4 LT |
99 | /* |
100 | * Our Physical Region Descriptor (PRD) table should be large enough | |
101 | * to handle the biggest I/O request we are likely to see. Since requests | |
102 | * can have no more than 256 sectors, and since the typical blocksize is | |
103 | * two or more sectors, we could get by with a limit of 128 entries here for | |
104 | * the usual worst case. Most requests seem to include some contiguous blocks, | |
105 | * further reducing the number of table entries required. | |
106 | * | |
107 | * The driver reverts to PIO mode for individual requests that exceed | |
108 | * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling | |
109 | * 100% of all crazy scenarios here is not necessary. | |
110 | * | |
111 | * As it turns out though, we must allocate a full 4KB page for this, | |
112 | * so the two PRD tables (ide0 & ide1) will each get half of that, | |
113 | * allowing each to have about 256 entries (8 bytes each) from this. | |
114 | */ | |
115 | #define PRD_BYTES 8 | |
116 | #define PRD_ENTRIES 256 | |
117 | ||
118 | /* | |
119 | * Some more useful definitions | |
120 | */ | |
121 | #define PARTN_BITS 6 /* number of minor dev bits for partitions */ | |
122 | #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ | |
123 | #define SECTOR_SIZE 512 | |
151a6701 | 124 | |
1da177e4 LT |
125 | #define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t))) |
126 | ||
127 | /* | |
128 | * Timeouts for various operations: | |
129 | */ | |
d6e2955a BZ |
130 | enum { |
131 | /* spec allows up to 20ms */ | |
132 | WAIT_DRQ = HZ / 10, /* 100ms */ | |
133 | /* some laptops are very slow */ | |
134 | WAIT_READY = 5 * HZ, /* 5s */ | |
135 | /* should be less than 3ms (?), if all ATAPI CD is closed at boot */ | |
136 | WAIT_PIDENTIFY = 10 * HZ, /* 10s */ | |
137 | /* worst case when spinning up */ | |
138 | WAIT_WORSTCASE = 30 * HZ, /* 30s */ | |
139 | /* maximum wait for an IRQ to happen */ | |
140 | WAIT_CMD = 10 * HZ, /* 10s */ | |
141 | /* Some drives require a longer IRQ timeout. */ | |
142 | WAIT_FLOPPY_CMD = 50 * HZ, /* 50s */ | |
143 | /* | |
144 | * Some drives (for example, Seagate STT3401A Travan) require a very | |
145 | * long timeout, because they don't return an interrupt or clear their | |
146 | * BSY bit until after the command completes (even retension commands). | |
147 | */ | |
148 | WAIT_TAPE_CMD = 900 * HZ, /* 900s */ | |
149 | /* minimum sleep time */ | |
150 | WAIT_MIN_SLEEP = HZ / 50, /* 20ms */ | |
151 | }; | |
1da177e4 | 152 | |
79e36a9f EO |
153 | /* |
154 | * Op codes for special requests to be handled by ide_special_rq(). | |
155 | * Values should be in the range of 0x20 to 0x3f. | |
156 | */ | |
157 | #define REQ_DRIVE_RESET 0x20 | |
92f1f8fd | 158 | #define REQ_DEVSET_EXEC 0x21 |
79e36a9f | 159 | |
1da177e4 LT |
160 | /* |
161 | * Check for an interrupt and acknowledge the interrupt status | |
162 | */ | |
163 | struct hwif_s; | |
164 | typedef int (ide_ack_intr_t)(struct hwif_s *); | |
165 | ||
1da177e4 LT |
166 | /* |
167 | * hwif_chipset_t is used to keep track of the specific hardware | |
168 | * chipset used by each IDE interface, if known. | |
169 | */ | |
528a572d | 170 | enum { ide_unknown, ide_generic, ide_pci, |
1da177e4 LT |
171 | ide_cmd640, ide_dtc2278, ide_ali14xx, |
172 | ide_qd65xx, ide_umc8672, ide_ht6560b, | |
173 | ide_rz1000, ide_trm290, | |
174 | ide_cmd646, ide_cy82c693, ide_4drives, | |
b7691646 | 175 | ide_pmac, ide_acorn, |
9a0e77f2 | 176 | ide_au1xxx, ide_palm3710 |
528a572d BZ |
177 | }; |
178 | ||
179 | typedef u8 hwif_chipset_t; | |
1da177e4 LT |
180 | |
181 | /* | |
182 | * Structure to hold all information about the location of this port | |
183 | */ | |
184 | typedef struct hw_regs_s { | |
4c3032d8 BZ |
185 | union { |
186 | struct ide_io_ports io_ports; | |
187 | unsigned long io_ports_array[IDE_NR_PORTS]; | |
188 | }; | |
189 | ||
1da177e4 | 190 | int irq; /* our irq number */ |
1da177e4 LT |
191 | ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ |
192 | hwif_chipset_t chipset; | |
c56c5648 | 193 | struct device *dev, *parent; |
d6276b5f | 194 | unsigned long config; |
1da177e4 LT |
195 | } hw_regs_t; |
196 | ||
cbb010c1 | 197 | void ide_init_port_data(struct hwif_s *, unsigned int); |
57c802e8 | 198 | void ide_init_port_hw(struct hwif_s *, hw_regs_t *); |
baa8f3e9 | 199 | |
1da177e4 LT |
200 | static inline void ide_std_init_ports(hw_regs_t *hw, |
201 | unsigned long io_addr, | |
202 | unsigned long ctl_addr) | |
203 | { | |
204 | unsigned int i; | |
205 | ||
4c3032d8 BZ |
206 | for (i = 0; i <= 7; i++) |
207 | hw->io_ports_array[i] = io_addr++; | |
1da177e4 | 208 | |
4c3032d8 | 209 | hw->io_ports.ctl_addr = ctl_addr; |
1da177e4 LT |
210 | } |
211 | ||
a861beb1 BZ |
212 | /* for IDE PCI controllers in legacy mode, temporary */ |
213 | static inline int __ide_default_irq(unsigned long base) | |
214 | { | |
215 | switch (base) { | |
216 | #ifdef CONFIG_IA64 | |
217 | case 0x1f0: return isa_irq_to_vector(14); | |
218 | case 0x170: return isa_irq_to_vector(15); | |
219 | #else | |
220 | case 0x1f0: return 14; | |
221 | case 0x170: return 15; | |
222 | #endif | |
223 | } | |
224 | return 0; | |
225 | } | |
226 | ||
2a8f7450 BZ |
227 | #if defined(CONFIG_ARM) || defined(CONFIG_FRV) || defined(CONFIG_M68K) || \ |
228 | defined(CONFIG_MIPS) || defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \ | |
229 | || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64) | |
1da177e4 | 230 | #include <asm/ide.h> |
2a8f7450 BZ |
231 | #else |
232 | #include <asm-generic/ide_iops.h> | |
233 | #endif | |
1da177e4 | 234 | |
c5bfc375 | 235 | #define MAX_HWIFS 10 |
83ae20c8 | 236 | |
1da177e4 LT |
237 | /* Currently only m68k, apus and m8xx need it */ |
238 | #ifndef IDE_ARCH_ACK_INTR | |
239 | # define ide_ack_intr(hwif) (1) | |
240 | #endif | |
241 | ||
242 | /* Currently only Atari needs it */ | |
243 | #ifndef IDE_ARCH_LOCK | |
244 | # define ide_release_lock() do {} while (0) | |
245 | # define ide_get_lock(hdlr, data) do {} while (0) | |
246 | #endif /* IDE_ARCH_LOCK */ | |
247 | ||
248 | /* | |
249 | * Now for the data we need to maintain per-drive: ide_drive_t | |
250 | */ | |
251 | ||
252 | #define ide_scsi 0x21 | |
253 | #define ide_disk 0x20 | |
254 | #define ide_optical 0x7 | |
255 | #define ide_cdrom 0x5 | |
256 | #define ide_tape 0x1 | |
257 | #define ide_floppy 0x0 | |
258 | ||
259 | /* | |
260 | * Special Driver Flags | |
261 | * | |
262 | * set_geometry : respecify drive geometry | |
263 | * recalibrate : seek to cyl 0 | |
264 | * set_multmode : set multmode count | |
265 | * set_tune : tune interface for drive | |
266 | * serviced : service command | |
267 | * reserved : unused | |
268 | */ | |
269 | typedef union { | |
270 | unsigned all : 8; | |
271 | struct { | |
1da177e4 LT |
272 | unsigned set_geometry : 1; |
273 | unsigned recalibrate : 1; | |
274 | unsigned set_multmode : 1; | |
275 | unsigned set_tune : 1; | |
276 | unsigned serviced : 1; | |
277 | unsigned reserved : 3; | |
1da177e4 LT |
278 | } b; |
279 | } special_t; | |
280 | ||
1da177e4 LT |
281 | /* |
282 | * ATA-IDE Select Register, aka Device-Head | |
283 | * | |
284 | * head : always zeros here | |
285 | * unit : drive select number: 0/1 | |
286 | * bit5 : always 1 | |
287 | * lba : using LBA instead of CHS | |
288 | * bit7 : always 1 | |
289 | */ | |
290 | typedef union { | |
291 | unsigned all : 8; | |
292 | struct { | |
293 | #if defined(__LITTLE_ENDIAN_BITFIELD) | |
294 | unsigned head : 4; | |
295 | unsigned unit : 1; | |
296 | unsigned bit5 : 1; | |
297 | unsigned lba : 1; | |
298 | unsigned bit7 : 1; | |
299 | #elif defined(__BIG_ENDIAN_BITFIELD) | |
300 | unsigned bit7 : 1; | |
301 | unsigned lba : 1; | |
302 | unsigned bit5 : 1; | |
303 | unsigned unit : 1; | |
304 | unsigned head : 4; | |
305 | #else | |
306 | #error "Please fix <asm/byteorder.h>" | |
307 | #endif | |
308 | } b; | |
309 | } select_t, ata_select_t; | |
310 | ||
1da177e4 LT |
311 | /* |
312 | * Status returned from various ide_ functions | |
313 | */ | |
314 | typedef enum { | |
315 | ide_stopped, /* no drive operation was started */ | |
316 | ide_started, /* a drive operation was started, handler was set */ | |
317 | } ide_startstop_t; | |
318 | ||
67c56364 BZ |
319 | /* ATAPI packet command flags */ |
320 | enum { | |
321 | /* set when an error is considered normal - no retry (ide-tape) */ | |
322 | PC_FLAG_ABORT = (1 << 0), | |
323 | PC_FLAG_SUPPRESS_ERROR = (1 << 1), | |
324 | PC_FLAG_WAIT_FOR_DSC = (1 << 2), | |
325 | PC_FLAG_DMA_OK = (1 << 3), | |
326 | PC_FLAG_DMA_IN_PROGRESS = (1 << 4), | |
327 | PC_FLAG_DMA_ERROR = (1 << 5), | |
328 | PC_FLAG_WRITING = (1 << 6), | |
329 | /* command timed out */ | |
330 | PC_FLAG_TIMEDOUT = (1 << 7), | |
331 | }; | |
332 | ||
333 | /* | |
334 | * With each packet command, we allocate a buffer of IDE_PC_BUFFER_SIZE bytes. | |
335 | * This is used for several packet commands (not for READ/WRITE commands). | |
336 | */ | |
337 | #define IDE_PC_BUFFER_SIZE 256 | |
338 | ||
339 | struct ide_atapi_pc { | |
340 | /* actual packet bytes */ | |
341 | u8 c[12]; | |
342 | /* incremented on each retry */ | |
343 | int retries; | |
344 | int error; | |
345 | ||
346 | /* bytes to transfer */ | |
347 | int req_xfer; | |
348 | /* bytes actually transferred */ | |
349 | int xferred; | |
350 | ||
351 | /* data buffer */ | |
352 | u8 *buf; | |
353 | /* current buffer position */ | |
354 | u8 *cur_pos; | |
355 | int buf_size; | |
356 | /* missing/available data on the current buffer */ | |
357 | int b_count; | |
358 | ||
359 | /* the corresponding request */ | |
360 | struct request *rq; | |
361 | ||
362 | unsigned long flags; | |
363 | ||
364 | /* | |
365 | * those are more or less driver-specific and some of them are subject | |
366 | * to change/removal later. | |
367 | */ | |
368 | u8 pc_buf[IDE_PC_BUFFER_SIZE]; | |
369 | ||
370 | /* idetape only */ | |
371 | struct idetape_bh *bh; | |
372 | char *b_data; | |
373 | ||
374 | /* idescsi only for now */ | |
375 | struct scatterlist *sg; | |
376 | unsigned int sg_cnt; | |
377 | ||
378 | struct scsi_cmnd *scsi_cmd; | |
379 | void (*done) (struct scsi_cmnd *); | |
380 | ||
381 | unsigned long timeout; | |
382 | }; | |
383 | ||
8185d5aa | 384 | struct ide_devset; |
1da177e4 | 385 | struct ide_driver_s; |
1da177e4 | 386 | |
e3a59b4d HR |
387 | #ifdef CONFIG_BLK_DEV_IDEACPI |
388 | struct ide_acpi_drive_link; | |
389 | struct ide_acpi_hwif_link; | |
390 | #endif | |
391 | ||
3b8ac539 BP |
392 | /* ATAPI device flags */ |
393 | enum { | |
394 | IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), | |
395 | IDE_AFLAG_MEDIA_CHANGED = (1 << 1), | |
3b8ac539 BP |
396 | /* Drive cannot lock the door. */ |
397 | IDE_AFLAG_NO_DOORLOCK = (1 << 2), | |
0578042d BZ |
398 | |
399 | /* ide-cd */ | |
3b8ac539 BP |
400 | /* Drive cannot eject the disc. */ |
401 | IDE_AFLAG_NO_EJECT = (1 << 3), | |
402 | /* Drive is a pre ATAPI 1.2 drive. */ | |
403 | IDE_AFLAG_PRE_ATAPI12 = (1 << 4), | |
404 | /* TOC addresses are in BCD. */ | |
405 | IDE_AFLAG_TOCADDR_AS_BCD = (1 << 5), | |
406 | /* TOC track numbers are in BCD. */ | |
407 | IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 6), | |
408 | /* | |
409 | * Drive does not provide data in multiples of SECTOR_SIZE | |
410 | * when more than one interrupt is needed. | |
411 | */ | |
412 | IDE_AFLAG_LIMIT_NFRAMES = (1 << 7), | |
413 | /* Seeking in progress. */ | |
414 | IDE_AFLAG_SEEKING = (1 << 8), | |
415 | /* Saved TOC information is current. */ | |
416 | IDE_AFLAG_TOC_VALID = (1 << 9), | |
417 | /* We think that the drive door is locked. */ | |
418 | IDE_AFLAG_DOOR_LOCKED = (1 << 10), | |
419 | /* SET_CD_SPEED command is unsupported. */ | |
420 | IDE_AFLAG_NO_SPEED_SELECT = (1 << 11), | |
421 | IDE_AFLAG_VERTOS_300_SSD = (1 << 12), | |
422 | IDE_AFLAG_VERTOS_600_ESD = (1 << 13), | |
423 | IDE_AFLAG_SANYO_3CD = (1 << 14), | |
424 | IDE_AFLAG_FULL_CAPS_PAGE = (1 << 15), | |
425 | IDE_AFLAG_PLAY_AUDIO_OK = (1 << 16), | |
426 | IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17), | |
427 | ||
428 | /* ide-floppy */ | |
429 | /* Format in progress */ | |
430 | IDE_AFLAG_FORMAT_IN_PROGRESS = (1 << 18), | |
431 | /* Avoid commands not supported in Clik drive */ | |
432 | IDE_AFLAG_CLIK_DRIVE = (1 << 19), | |
433 | /* Requires BH algorithm for packets */ | |
434 | IDE_AFLAG_ZIP_DRIVE = (1 << 20), | |
49cac39e BZ |
435 | /* Write protect */ |
436 | IDE_AFLAG_WP = (1 << 21), | |
437 | /* Supports format progress report */ | |
438 | IDE_AFLAG_SRFP = (1 << 22), | |
3b8ac539 BP |
439 | |
440 | /* ide-tape */ | |
49cac39e | 441 | IDE_AFLAG_IGNORE_DSC = (1 << 23), |
3b8ac539 | 442 | /* 0 When the tape position is unknown */ |
49cac39e | 443 | IDE_AFLAG_ADDRESS_VALID = (1 << 24), |
3b8ac539 | 444 | /* Device already opened */ |
49cac39e | 445 | IDE_AFLAG_BUSY = (1 << 25), |
3b8ac539 | 446 | /* Attempt to auto-detect the current user block size */ |
49cac39e | 447 | IDE_AFLAG_DETECT_BS = (1 << 26), |
3b8ac539 | 448 | /* Currently on a filemark */ |
49cac39e | 449 | IDE_AFLAG_FILEMARK = (1 << 27), |
3b8ac539 | 450 | /* 0 = no tape is loaded, so we don't rewind after ejecting */ |
49cac39e | 451 | IDE_AFLAG_MEDIUM_PRESENT = (1 << 28), |
f20f2586 | 452 | |
49cac39e | 453 | IDE_AFLAG_NO_AUTOCLOSE = (1 << 29), |
3b8ac539 BP |
454 | }; |
455 | ||
97100fc8 BZ |
456 | /* device flags */ |
457 | enum { | |
458 | /* restore settings after device reset */ | |
459 | IDE_DFLAG_KEEP_SETTINGS = (1 << 0), | |
460 | /* device is using DMA for read/write */ | |
461 | IDE_DFLAG_USING_DMA = (1 << 1), | |
462 | /* okay to unmask other IRQs */ | |
463 | IDE_DFLAG_UNMASK = (1 << 2), | |
464 | /* don't attempt flushes */ | |
465 | IDE_DFLAG_NOFLUSH = (1 << 3), | |
466 | /* DSC overlap */ | |
467 | IDE_DFLAG_DSC_OVERLAP = (1 << 4), | |
468 | /* give potential excess bandwidth */ | |
469 | IDE_DFLAG_NICE1 = (1 << 5), | |
470 | /* device is physically present */ | |
471 | IDE_DFLAG_PRESENT = (1 << 6), | |
472 | /* device ejected hint */ | |
473 | IDE_DFLAG_DEAD = (1 << 7), | |
474 | /* id read from device (synthetic if not set) */ | |
475 | IDE_DFLAG_ID_READ = (1 << 8), | |
476 | IDE_DFLAG_NOPROBE = (1 << 9), | |
477 | /* need to do check_media_change() */ | |
478 | IDE_DFLAG_REMOVABLE = (1 << 10), | |
479 | /* needed for removable devices */ | |
480 | IDE_DFLAG_ATTACH = (1 << 11), | |
481 | IDE_DFLAG_FORCED_GEOM = (1 << 12), | |
482 | /* disallow setting unmask bit */ | |
483 | IDE_DFLAG_NO_UNMASK = (1 << 13), | |
484 | /* disallow enabling 32-bit I/O */ | |
485 | IDE_DFLAG_NO_IO_32BIT = (1 << 14), | |
486 | /* for removable only: door lock/unlock works */ | |
487 | IDE_DFLAG_DOORLOCKING = (1 << 15), | |
488 | /* disallow DMA */ | |
489 | IDE_DFLAG_NODMA = (1 << 16), | |
490 | /* powermanagment told us not to do anything, so sleep nicely */ | |
491 | IDE_DFLAG_BLOCKED = (1 << 17), | |
492 | /* ide-scsi emulation */ | |
493 | IDE_DFLAG_SCSI = (1 << 18), | |
494 | /* sleeping & sleep field valid */ | |
495 | IDE_DFLAG_SLEEPING = (1 << 19), | |
496 | IDE_DFLAG_POST_RESET = (1 << 20), | |
497 | IDE_DFLAG_UDMA33_WARNED = (1 << 21), | |
498 | IDE_DFLAG_LBA48 = (1 << 22), | |
499 | /* status of write cache */ | |
500 | IDE_DFLAG_WCACHE = (1 << 23), | |
501 | /* used for ignoring ATA_DF */ | |
502 | IDE_DFLAG_NOWERR = (1 << 24), | |
c3922048 BZ |
503 | /* retrying in PIO */ |
504 | IDE_DFLAG_DMA_PIO_RETRY = (1 << 25), | |
97100fc8 BZ |
505 | }; |
506 | ||
d7c26ebb | 507 | struct ide_drive_s { |
1da177e4 LT |
508 | char name[4]; /* drive name, such as "hda" */ |
509 | char driver_req[10]; /* requests specific driver */ | |
510 | ||
165125e1 | 511 | struct request_queue *queue; /* request queue */ |
1da177e4 LT |
512 | |
513 | struct request *rq; /* current request */ | |
514 | struct ide_drive_s *next; /* circular list of hwgroup drives */ | |
1da177e4 | 515 | void *driver_data; /* extra driver data */ |
48fb2688 | 516 | u16 *id; /* identification info */ |
7662d046 | 517 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 518 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
92f1f8fd | 519 | const struct ide_proc_devset *settings; /* /proc/ide/ drive settings */ |
7662d046 | 520 | #endif |
1da177e4 LT |
521 | struct hwif_s *hwif; /* actually (ide_hwif_t *) */ |
522 | ||
97100fc8 BZ |
523 | unsigned long dev_flags; |
524 | ||
1da177e4 LT |
525 | unsigned long sleep; /* sleep until this time */ |
526 | unsigned long service_start; /* time we started last request */ | |
527 | unsigned long service_time; /* service time of last request */ | |
528 | unsigned long timeout; /* max time to wait for irq */ | |
529 | ||
530 | special_t special; /* special action flags */ | |
531 | select_t select; /* basic drive/head select reg value */ | |
532 | ||
1da177e4 | 533 | u8 retry_pio; /* retrying dma capable host in pio */ |
1da177e4 | 534 | u8 waiting_for_dma; /* dma currently in progress */ |
1da177e4 | 535 | |
1da177e4 LT |
536 | u8 quirk_list; /* considered quirky, set for a specific host */ |
537 | u8 init_speed; /* transfer rate set at boot */ | |
1da177e4 | 538 | u8 current_speed; /* current transfer rate set */ |
513daadd | 539 | u8 desired_speed; /* desired transfer rate set */ |
1da177e4 | 540 | u8 dn; /* now wide spread use */ |
1da177e4 LT |
541 | u8 acoustic; /* acoustic management */ |
542 | u8 media; /* disk, cdrom, tape, floppy, ... */ | |
1da177e4 LT |
543 | u8 ready_stat; /* min status value for drive ready */ |
544 | u8 mult_count; /* current multiple sector setting */ | |
545 | u8 mult_req; /* requested multiple sector setting */ | |
546 | u8 tune_req; /* requested drive tuning setting */ | |
547 | u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ | |
3a7d2484 | 548 | u8 bad_wstat; /* used for ignoring ATA_DF */ |
1da177e4 LT |
549 | u8 head; /* "real" number of heads */ |
550 | u8 sect; /* "real" sectors per track */ | |
551 | u8 bios_head; /* BIOS/fdisk/LILO number of heads */ | |
552 | u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ | |
553 | ||
baf08f0b BZ |
554 | /* delay this long before sending packet command */ |
555 | u8 pc_delay; | |
556 | ||
1da177e4 LT |
557 | unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ |
558 | unsigned int cyl; /* "real" number of cyls */ | |
26bcb879 | 559 | unsigned int drive_data; /* used by set_pio_mode/selectproc */ |
1da177e4 LT |
560 | unsigned int failures; /* current failure count */ |
561 | unsigned int max_failures; /* maximum allowed failure count */ | |
dbe217af | 562 | u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */ |
1da177e4 LT |
563 | |
564 | u64 capacity64; /* total number of sectors */ | |
565 | ||
566 | int lun; /* logical unit */ | |
567 | int crc_count; /* crc counter to reduce drive speed */ | |
b22b2ca4 BP |
568 | |
569 | unsigned long debug_mask; /* debugging levels switch */ | |
570 | ||
e3a59b4d HR |
571 | #ifdef CONFIG_BLK_DEV_IDEACPI |
572 | struct ide_acpi_drive_link *acpidata; | |
573 | #endif | |
1da177e4 LT |
574 | struct list_head list; |
575 | struct device gendev; | |
f36d4024 | 576 | struct completion gendev_rel_comp; /* to deal with device release() */ |
d7c26ebb | 577 | |
2b9efba4 BZ |
578 | /* current packet command */ |
579 | struct ide_atapi_pc *pc; | |
580 | ||
d7c26ebb | 581 | /* callback for packet commands */ |
b14c7212 | 582 | void (*pc_callback)(struct ide_drive_s *, int); |
3b8ac539 | 583 | |
85e39035 BZ |
584 | void (*pc_update_buffers)(struct ide_drive_s *, struct ide_atapi_pc *); |
585 | int (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *, | |
586 | unsigned int, int); | |
587 | ||
3b8ac539 | 588 | unsigned long atapi_flags; |
67c56364 BZ |
589 | |
590 | struct ide_atapi_pc request_sense_pc; | |
591 | struct request request_sense_rq; | |
d7c26ebb BP |
592 | }; |
593 | ||
594 | typedef struct ide_drive_s ide_drive_t; | |
1da177e4 | 595 | |
5aeddf90 BP |
596 | #define to_ide_device(dev) container_of(dev, ide_drive_t, gendev) |
597 | ||
598 | #define to_ide_drv(obj, cont_type) \ | |
599 | container_of(obj, struct cont_type, kref) | |
600 | ||
601 | #define ide_drv_g(disk, cont_type) \ | |
602 | container_of((disk)->private_data, struct cont_type, driver) | |
8604affd | 603 | |
374e042c | 604 | struct ide_task_s; |
039788e1 | 605 | struct ide_port_info; |
1da177e4 | 606 | |
374e042c BZ |
607 | struct ide_tp_ops { |
608 | void (*exec_command)(struct hwif_s *, u8); | |
609 | u8 (*read_status)(struct hwif_s *); | |
610 | u8 (*read_altstatus)(struct hwif_s *); | |
611 | u8 (*read_sff_dma_status)(struct hwif_s *); | |
612 | ||
613 | void (*set_irq)(struct hwif_s *, int); | |
614 | ||
615 | void (*tf_load)(ide_drive_t *, struct ide_task_s *); | |
616 | void (*tf_read)(ide_drive_t *, struct ide_task_s *); | |
617 | ||
618 | void (*input_data)(ide_drive_t *, struct request *, void *, | |
619 | unsigned int); | |
620 | void (*output_data)(ide_drive_t *, struct request *, void *, | |
621 | unsigned int); | |
622 | }; | |
623 | ||
624 | extern const struct ide_tp_ops default_tp_ops; | |
625 | ||
39b986a6 BZ |
626 | /** |
627 | * struct ide_port_ops - IDE port operations | |
628 | * | |
629 | * @init_dev: host specific initialization of a device | |
630 | * @set_pio_mode: routine to program host for PIO mode | |
631 | * @set_dma_mode: routine to program host for DMA mode | |
632 | * @selectproc: tweaks hardware to select drive | |
633 | * @reset_poll: chipset polling based on hba specifics | |
634 | * @pre_reset: chipset specific changes to default for device-hba resets | |
635 | * @resetproc: routine to reset controller after a disk reset | |
636 | * @maskproc: special host masking for drive selection | |
637 | * @quirkproc: check host's drive quirk list | |
638 | * | |
639 | * @mdma_filter: filter MDMA modes | |
640 | * @udma_filter: filter UDMA modes | |
641 | * | |
642 | * @cable_detect: detect cable type | |
643 | */ | |
ac95beed | 644 | struct ide_port_ops { |
e6d95bd1 | 645 | void (*init_dev)(ide_drive_t *); |
ac95beed | 646 | void (*set_pio_mode)(ide_drive_t *, const u8); |
ac95beed | 647 | void (*set_dma_mode)(ide_drive_t *, const u8); |
ac95beed | 648 | void (*selectproc)(ide_drive_t *); |
ac95beed | 649 | int (*reset_poll)(ide_drive_t *); |
ac95beed | 650 | void (*pre_reset)(ide_drive_t *); |
ac95beed | 651 | void (*resetproc)(ide_drive_t *); |
ac95beed | 652 | void (*maskproc)(ide_drive_t *, int); |
ac95beed BZ |
653 | void (*quirkproc)(ide_drive_t *); |
654 | ||
655 | u8 (*mdma_filter)(ide_drive_t *); | |
656 | u8 (*udma_filter)(ide_drive_t *); | |
657 | ||
658 | u8 (*cable_detect)(struct hwif_s *); | |
659 | }; | |
660 | ||
5e37bdc0 BZ |
661 | struct ide_dma_ops { |
662 | void (*dma_host_set)(struct ide_drive_s *, int); | |
663 | int (*dma_setup)(struct ide_drive_s *); | |
664 | void (*dma_exec_cmd)(struct ide_drive_s *, u8); | |
665 | void (*dma_start)(struct ide_drive_s *); | |
666 | int (*dma_end)(struct ide_drive_s *); | |
667 | int (*dma_test_irq)(struct ide_drive_s *); | |
668 | void (*dma_lost_irq)(struct ide_drive_s *); | |
669 | void (*dma_timeout)(struct ide_drive_s *); | |
670 | }; | |
671 | ||
08da591e BZ |
672 | struct ide_host; |
673 | ||
1da177e4 LT |
674 | typedef struct hwif_s { |
675 | struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ | |
676 | struct hwif_s *mate; /* other hwif from same PCI chip */ | |
677 | struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */ | |
678 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ | |
679 | ||
08da591e BZ |
680 | struct ide_host *host; |
681 | ||
1da177e4 LT |
682 | char name[6]; /* name of interface, eg. "ide0" */ |
683 | ||
4c3032d8 BZ |
684 | struct ide_io_ports io_ports; |
685 | ||
1da177e4 | 686 | unsigned long sata_scr[SATA_NR_PORTS]; |
1da177e4 | 687 | |
1da177e4 LT |
688 | ide_drive_t drives[MAX_DRIVES]; /* drive info */ |
689 | ||
690 | u8 major; /* our major number */ | |
691 | u8 index; /* 0 for ide0; 1 for ide1; ... */ | |
692 | u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ | |
1da177e4 | 693 | |
e95d9c6b | 694 | u32 host_flags; |
6a824c92 | 695 | |
4099d143 BZ |
696 | u8 pio_mask; |
697 | ||
1da177e4 LT |
698 | u8 ultra_mask; |
699 | u8 mwdma_mask; | |
700 | u8 swdma_mask; | |
701 | ||
49521f97 BZ |
702 | u8 cbl; /* cable type */ |
703 | ||
1da177e4 LT |
704 | hwif_chipset_t chipset; /* sub-module for tuning.. */ |
705 | ||
36501650 BZ |
706 | struct device *dev; |
707 | ||
18e181fe BZ |
708 | ide_ack_intr_t *ack_intr; |
709 | ||
1da177e4 LT |
710 | void (*rw_disk)(ide_drive_t *, struct request *); |
711 | ||
374e042c | 712 | const struct ide_tp_ops *tp_ops; |
ac95beed | 713 | const struct ide_port_ops *port_ops; |
f37afdac | 714 | const struct ide_dma_ops *dma_ops; |
bfa14b42 | 715 | |
f0dd8712 | 716 | void (*ide_dma_clear_irq)(ide_drive_t *drive); |
1da177e4 | 717 | |
1da177e4 LT |
718 | /* dma physical region descriptor table (cpu view) */ |
719 | unsigned int *dmatable_cpu; | |
720 | /* dma physical region descriptor table (dma view) */ | |
721 | dma_addr_t dmatable_dma; | |
722 | /* Scatter-gather list used to build the above */ | |
723 | struct scatterlist *sg_table; | |
724 | int sg_max_nents; /* Maximum number of entries in it */ | |
725 | int sg_nents; /* Current number of entries in it */ | |
726 | int sg_dma_direction; /* dma transfer direction */ | |
727 | ||
728 | /* data phase of the active command (currently only valid for PIO/DMA) */ | |
729 | int data_phase; | |
730 | ||
731 | unsigned int nsect; | |
732 | unsigned int nleft; | |
55c16a70 | 733 | struct scatterlist *cursg; |
1da177e4 LT |
734 | unsigned int cursg_ofs; |
735 | ||
1da177e4 LT |
736 | int rqsize; /* max sectors per request */ |
737 | int irq; /* our irq number */ | |
738 | ||
1da177e4 | 739 | unsigned long dma_base; /* base addr for dma ports */ |
1da177e4 | 740 | |
1da177e4 LT |
741 | unsigned long config_data; /* for use by chipset-specific code */ |
742 | unsigned long select_data; /* for use by chipset-specific code */ | |
743 | ||
020e322d SS |
744 | unsigned long extra_base; /* extra addr for dma ports */ |
745 | unsigned extra_ports; /* number of extra dma ports */ | |
746 | ||
1da177e4 | 747 | unsigned present : 1; /* this interface exists */ |
1da177e4 LT |
748 | unsigned serialized : 1; /* serialized all channel operation */ |
749 | unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */ | |
1da177e4 LT |
750 | unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ |
751 | ||
f74c9141 BZ |
752 | struct device gendev; |
753 | struct device *portdev; | |
754 | ||
f36d4024 | 755 | struct completion gendev_rel_comp; /* To deal with device release() */ |
1da177e4 LT |
756 | |
757 | void *hwif_data; /* extra hwif data */ | |
758 | ||
759 | unsigned dma; | |
e3a59b4d HR |
760 | |
761 | #ifdef CONFIG_BLK_DEV_IDEACPI | |
762 | struct ide_acpi_hwif_link *acpidata; | |
763 | #endif | |
22fc6ecc | 764 | } ____cacheline_internodealigned_in_smp ide_hwif_t; |
1da177e4 | 765 | |
48c3c107 BZ |
766 | struct ide_host { |
767 | ide_hwif_t *ports[MAX_HWIFS]; | |
768 | unsigned int n_ports; | |
6cdf6eb3 | 769 | struct device *dev[2]; |
feb22b7f | 770 | unsigned int (*init_chipset)(struct pci_dev *); |
ef0b0427 | 771 | unsigned long host_flags; |
6cdf6eb3 | 772 | void *host_priv; |
48c3c107 BZ |
773 | }; |
774 | ||
1da177e4 LT |
775 | /* |
776 | * internal ide interrupt handler type | |
777 | */ | |
1da177e4 LT |
778 | typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); |
779 | typedef int (ide_expiry_t)(ide_drive_t *); | |
780 | ||
0eea6458 | 781 | /* used by ide-cd, ide-floppy, etc. */ |
9567b349 | 782 | typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned); |
0eea6458 | 783 | |
1da177e4 LT |
784 | typedef struct hwgroup_s { |
785 | /* irq handler, if active */ | |
786 | ide_startstop_t (*handler)(ide_drive_t *); | |
a6fbb1c8 | 787 | |
1da177e4 LT |
788 | /* BOOL: protects all fields below */ |
789 | volatile int busy; | |
790 | /* BOOL: wake us up on timer expiry */ | |
791 | unsigned int sleeping : 1; | |
792 | /* BOOL: polling active & poll_timeout field valid */ | |
793 | unsigned int polling : 1; | |
913759ac | 794 | |
1da177e4 LT |
795 | /* current drive */ |
796 | ide_drive_t *drive; | |
797 | /* ptr to current hwif in linked-list */ | |
798 | ide_hwif_t *hwif; | |
799 | ||
1da177e4 LT |
800 | /* current request */ |
801 | struct request *rq; | |
a6fbb1c8 | 802 | |
1da177e4 LT |
803 | /* failsafe timer */ |
804 | struct timer_list timer; | |
1da177e4 LT |
805 | /* timeout value during long polls */ |
806 | unsigned long poll_timeout; | |
807 | /* queried upon timeouts */ | |
808 | int (*expiry)(ide_drive_t *); | |
a6fbb1c8 | 809 | |
23450319 SS |
810 | int req_gen; |
811 | int req_gen_timer; | |
1da177e4 LT |
812 | } ide_hwgroup_t; |
813 | ||
7662d046 BZ |
814 | typedef struct ide_driver_s ide_driver_t; |
815 | ||
f9383c42 | 816 | extern struct mutex ide_setting_mtx; |
1da177e4 | 817 | |
92f1f8fd EO |
818 | /* |
819 | * configurable drive settings | |
820 | */ | |
821 | ||
822 | #define DS_SYNC (1 << 0) | |
823 | ||
824 | struct ide_devset { | |
825 | int (*get)(ide_drive_t *); | |
826 | int (*set)(ide_drive_t *, int); | |
827 | unsigned int flags; | |
828 | }; | |
829 | ||
830 | #define __DEVSET(_flags, _get, _set) { \ | |
831 | .flags = _flags, \ | |
832 | .get = _get, \ | |
833 | .set = _set, \ | |
834 | } | |
7662d046 | 835 | |
8185d5aa | 836 | #define ide_devset_get(name, field) \ |
92f1f8fd | 837 | static int get_##name(ide_drive_t *drive) \ |
8185d5aa BZ |
838 | { \ |
839 | return drive->field; \ | |
840 | } | |
841 | ||
842 | #define ide_devset_set(name, field) \ | |
92f1f8fd | 843 | static int set_##name(ide_drive_t *drive, int arg) \ |
8185d5aa BZ |
844 | { \ |
845 | drive->field = arg; \ | |
846 | return 0; \ | |
847 | } | |
848 | ||
97100fc8 BZ |
849 | #define ide_devset_get_flag(name, flag) \ |
850 | static int get_##name(ide_drive_t *drive) \ | |
851 | { \ | |
852 | return !!(drive->dev_flags & flag); \ | |
853 | } | |
854 | ||
855 | #define ide_devset_set_flag(name, flag) \ | |
856 | static int set_##name(ide_drive_t *drive, int arg) \ | |
857 | { \ | |
858 | if (arg) \ | |
859 | drive->dev_flags |= flag; \ | |
860 | else \ | |
861 | drive->dev_flags &= ~flag; \ | |
862 | return 0; \ | |
863 | } | |
864 | ||
92f1f8fd EO |
865 | #define __IDE_DEVSET(_name, _flags, _get, _set) \ |
866 | const struct ide_devset ide_devset_##_name = \ | |
867 | __DEVSET(_flags, _get, _set) | |
868 | ||
869 | #define IDE_DEVSET(_name, _flags, _get, _set) \ | |
870 | static __IDE_DEVSET(_name, _flags, _get, _set) | |
871 | ||
872 | #define ide_devset_rw(_name, _func) \ | |
873 | IDE_DEVSET(_name, 0, get_##_func, set_##_func) | |
874 | ||
875 | #define ide_devset_w(_name, _func) \ | |
876 | IDE_DEVSET(_name, 0, NULL, set_##_func) | |
877 | ||
878 | #define ide_devset_rw_sync(_name, _func) \ | |
879 | IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func) | |
880 | ||
881 | #define ide_decl_devset(_name) \ | |
882 | extern const struct ide_devset ide_devset_##_name | |
883 | ||
884 | ide_decl_devset(io_32bit); | |
885 | ide_decl_devset(keepsettings); | |
886 | ide_decl_devset(pio_mode); | |
887 | ide_decl_devset(unmaskirq); | |
888 | ide_decl_devset(using_dma); | |
889 | ||
7662d046 | 890 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 891 | /* |
92f1f8fd | 892 | * /proc/ide interface |
1da177e4 LT |
893 | */ |
894 | ||
92f1f8fd EO |
895 | #define ide_devset_rw_field(_name, _field) \ |
896 | ide_devset_get(_name, _field); \ | |
897 | ide_devset_set(_name, _field); \ | |
898 | IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) | |
899 | ||
97100fc8 BZ |
900 | #define ide_devset_rw_flag(_name, _field) \ |
901 | ide_devset_get_flag(_name, _field); \ | |
902 | ide_devset_set_flag(_name, _field); \ | |
903 | IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) | |
904 | ||
92f1f8fd EO |
905 | struct ide_proc_devset { |
906 | const char *name; | |
907 | const struct ide_devset *setting; | |
908 | int min, max; | |
909 | int (*mulf)(ide_drive_t *); | |
910 | int (*divf)(ide_drive_t *); | |
8185d5aa BZ |
911 | }; |
912 | ||
92f1f8fd EO |
913 | #define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \ |
914 | .name = __stringify(_name), \ | |
915 | .setting = &ide_devset_##_name, \ | |
916 | .min = _min, \ | |
917 | .max = _max, \ | |
918 | .mulf = _mulf, \ | |
919 | .divf = _divf, \ | |
8185d5aa BZ |
920 | } |
921 | ||
92f1f8fd EO |
922 | #define IDE_PROC_DEVSET(_name, _min, _max) \ |
923 | __IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL) | |
8185d5aa | 924 | |
1da177e4 LT |
925 | typedef struct { |
926 | const char *name; | |
927 | mode_t mode; | |
928 | read_proc_t *read_proc; | |
929 | write_proc_t *write_proc; | |
930 | } ide_proc_entry_t; | |
931 | ||
ecfd80e4 BZ |
932 | void proc_ide_create(void); |
933 | void proc_ide_destroy(void); | |
5cbf79cd | 934 | void ide_proc_register_port(ide_hwif_t *); |
d9270a3f | 935 | void ide_proc_port_register_devices(ide_hwif_t *); |
5b0c4b30 | 936 | void ide_proc_unregister_device(ide_drive_t *); |
5cbf79cd | 937 | void ide_proc_unregister_port(ide_hwif_t *); |
7662d046 BZ |
938 | void ide_proc_register_driver(ide_drive_t *, ide_driver_t *); |
939 | void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *); | |
940 | ||
1da177e4 LT |
941 | read_proc_t proc_ide_read_capacity; |
942 | read_proc_t proc_ide_read_geometry; | |
943 | ||
1da177e4 LT |
944 | /* |
945 | * Standard exit stuff: | |
946 | */ | |
947 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) \ | |
948 | { \ | |
949 | len -= off; \ | |
950 | if (len < count) { \ | |
951 | *eof = 1; \ | |
952 | if (len <= 0) \ | |
953 | return 0; \ | |
954 | } else \ | |
955 | len = count; \ | |
956 | *start = page + off; \ | |
957 | return len; \ | |
958 | } | |
959 | #else | |
ecfd80e4 BZ |
960 | static inline void proc_ide_create(void) { ; } |
961 | static inline void proc_ide_destroy(void) { ; } | |
5cbf79cd | 962 | static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; } |
d9270a3f | 963 | static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; } |
5b0c4b30 | 964 | static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; } |
5cbf79cd | 965 | static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; } |
7662d046 BZ |
966 | static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } |
967 | static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } | |
1da177e4 LT |
968 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0; |
969 | #endif | |
970 | ||
e1c7c464 BP |
971 | enum { |
972 | /* enter/exit functions */ | |
973 | IDE_DBG_FUNC = (1 << 0), | |
974 | /* sense key/asc handling */ | |
975 | IDE_DBG_SENSE = (1 << 1), | |
976 | /* packet commands handling */ | |
977 | IDE_DBG_PC = (1 << 2), | |
978 | /* request handling */ | |
979 | IDE_DBG_RQ = (1 << 3), | |
980 | /* driver probing/setup */ | |
981 | IDE_DBG_PROBE = (1 << 4), | |
982 | }; | |
983 | ||
984 | /* DRV_NAME has to be defined in the driver before using the macro below */ | |
985 | #define __ide_debug_log(lvl, fmt, args...) \ | |
986 | { \ | |
987 | if (unlikely(drive->debug_mask & lvl)) \ | |
988 | printk(KERN_INFO DRV_NAME ": " fmt, ## args); \ | |
989 | } | |
990 | ||
1da177e4 LT |
991 | /* |
992 | * Power Management step value (rq->pm->pm_step). | |
993 | * | |
994 | * The step value starts at 0 (ide_pm_state_start_suspend) for a | |
995 | * suspend operation or 1000 (ide_pm_state_start_resume) for a | |
996 | * resume operation. | |
997 | * | |
998 | * For each step, the core calls the subdriver start_power_step() first. | |
999 | * This can return: | |
1000 | * - ide_stopped : In this case, the core calls us back again unless | |
1001 | * step have been set to ide_power_state_completed. | |
1002 | * - ide_started : In this case, the channel is left busy until an | |
1003 | * async event (interrupt) occurs. | |
1004 | * Typically, start_power_step() will issue a taskfile request with | |
1005 | * do_rw_taskfile(). | |
1006 | * | |
1007 | * Upon reception of the interrupt, the core will call complete_power_step() | |
1008 | * with the error code if any. This routine should update the step value | |
1009 | * and return. It should not start a new request. The core will call | |
1010 | * start_power_step for the new step value, unless step have been set to | |
1011 | * ide_power_state_completed. | |
1012 | * | |
1013 | * Subdrivers are expected to define their own additional power | |
1014 | * steps from 1..999 for suspend and from 1001..1999 for resume, | |
1015 | * other values are reserved for future use. | |
1016 | */ | |
1017 | ||
1018 | enum { | |
1019 | ide_pm_state_completed = -1, | |
1020 | ide_pm_state_start_suspend = 0, | |
1021 | ide_pm_state_start_resume = 1000, | |
1022 | }; | |
1023 | ||
1024 | /* | |
1025 | * Subdrivers support. | |
4ef3b8f4 LR |
1026 | * |
1027 | * The gendriver.owner field should be set to the module owner of this driver. | |
1028 | * The gendriver.name field should be set to the name of this driver | |
1da177e4 | 1029 | */ |
7662d046 | 1030 | struct ide_driver_s { |
1da177e4 LT |
1031 | const char *version; |
1032 | u8 media; | |
1da177e4 LT |
1033 | ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); |
1034 | int (*end_request)(ide_drive_t *, int, int); | |
1035 | ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8); | |
1da177e4 | 1036 | struct device_driver gen_driver; |
4031bbe4 RK |
1037 | int (*probe)(ide_drive_t *); |
1038 | void (*remove)(ide_drive_t *); | |
0d2157f7 | 1039 | void (*resume)(ide_drive_t *); |
4031bbe4 | 1040 | void (*shutdown)(ide_drive_t *); |
7662d046 | 1041 | #ifdef CONFIG_IDE_PROC_FS |
92f1f8fd EO |
1042 | ide_proc_entry_t *proc; |
1043 | const struct ide_proc_devset *settings; | |
7662d046 BZ |
1044 | #endif |
1045 | }; | |
1da177e4 | 1046 | |
4031bbe4 RK |
1047 | #define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver) |
1048 | ||
08da591e BZ |
1049 | int ide_device_get(ide_drive_t *); |
1050 | void ide_device_put(ide_drive_t *); | |
1051 | ||
aa768773 BZ |
1052 | struct ide_ioctl_devset { |
1053 | unsigned int get_ioctl; | |
1054 | unsigned int set_ioctl; | |
92f1f8fd | 1055 | const struct ide_devset *setting; |
aa768773 BZ |
1056 | }; |
1057 | ||
1058 | int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int, | |
1059 | unsigned long, const struct ide_ioctl_devset *); | |
1060 | ||
1061 | int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, | |
1062 | unsigned, unsigned long); | |
1da177e4 | 1063 | |
ebae41a5 BZ |
1064 | extern int ide_vlb_clk; |
1065 | extern int ide_pci_clk; | |
1066 | ||
1da177e4 | 1067 | extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs); |
dbe217af AC |
1068 | int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, |
1069 | int uptodate, int nr_sectors); | |
1da177e4 | 1070 | |
1da177e4 LT |
1071 | extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry); |
1072 | ||
cd2a2d96 BZ |
1073 | void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int, |
1074 | ide_expiry_t *); | |
1da177e4 | 1075 | |
1fc14258 BZ |
1076 | void ide_execute_pkt_cmd(ide_drive_t *); |
1077 | ||
9f87abe8 BZ |
1078 | void ide_pad_transfer(ide_drive_t *, int, int); |
1079 | ||
1da177e4 LT |
1080 | ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8); |
1081 | ||
1da177e4 LT |
1082 | ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat); |
1083 | ||
4dde4492 | 1084 | void ide_fix_driveid(u16 *); |
01745112 | 1085 | |
1da177e4 LT |
1086 | extern void ide_fixstring(u8 *, const int, const int); |
1087 | ||
b163f46d BZ |
1088 | int ide_busy_sleep(ide_hwif_t *, unsigned long, int); |
1089 | ||
74af21cf | 1090 | int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); |
1da177e4 | 1091 | |
1da177e4 LT |
1092 | extern ide_startstop_t ide_do_reset (ide_drive_t *); |
1093 | ||
92f1f8fd EO |
1094 | extern int ide_devset_execute(ide_drive_t *drive, |
1095 | const struct ide_devset *setting, int arg); | |
1096 | ||
63f5abb0 | 1097 | extern void ide_do_drive_cmd(ide_drive_t *, struct request *); |
1da177e4 | 1098 | |
1da177e4 LT |
1099 | extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); |
1100 | ||
9e42237f BZ |
1101 | enum { |
1102 | IDE_TFLAG_LBA48 = (1 << 0), | |
74095a91 BZ |
1103 | IDE_TFLAG_FLAGGED = (1 << 2), |
1104 | IDE_TFLAG_OUT_DATA = (1 << 3), | |
1105 | IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4), | |
1106 | IDE_TFLAG_OUT_HOB_NSECT = (1 << 5), | |
1107 | IDE_TFLAG_OUT_HOB_LBAL = (1 << 6), | |
1108 | IDE_TFLAG_OUT_HOB_LBAM = (1 << 7), | |
1109 | IDE_TFLAG_OUT_HOB_LBAH = (1 << 8), | |
1110 | IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE | | |
1111 | IDE_TFLAG_OUT_HOB_NSECT | | |
1112 | IDE_TFLAG_OUT_HOB_LBAL | | |
1113 | IDE_TFLAG_OUT_HOB_LBAM | | |
1114 | IDE_TFLAG_OUT_HOB_LBAH, | |
1115 | IDE_TFLAG_OUT_FEATURE = (1 << 9), | |
1116 | IDE_TFLAG_OUT_NSECT = (1 << 10), | |
1117 | IDE_TFLAG_OUT_LBAL = (1 << 11), | |
1118 | IDE_TFLAG_OUT_LBAM = (1 << 12), | |
1119 | IDE_TFLAG_OUT_LBAH = (1 << 13), | |
1120 | IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE | | |
1121 | IDE_TFLAG_OUT_NSECT | | |
1122 | IDE_TFLAG_OUT_LBAL | | |
1123 | IDE_TFLAG_OUT_LBAM | | |
1124 | IDE_TFLAG_OUT_LBAH, | |
807e35d6 | 1125 | IDE_TFLAG_OUT_DEVICE = (1 << 14), |
ac026ff2 | 1126 | IDE_TFLAG_WRITE = (1 << 15), |
866e2ec9 BZ |
1127 | IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16), |
1128 | IDE_TFLAG_IN_DATA = (1 << 17), | |
57d7366b | 1129 | IDE_TFLAG_CUSTOM_HANDLER = (1 << 18), |
f6e29e35 | 1130 | IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19), |
c2b57cdc BZ |
1131 | IDE_TFLAG_IN_HOB_FEATURE = (1 << 20), |
1132 | IDE_TFLAG_IN_HOB_NSECT = (1 << 21), | |
1133 | IDE_TFLAG_IN_HOB_LBAL = (1 << 22), | |
1134 | IDE_TFLAG_IN_HOB_LBAM = (1 << 23), | |
1135 | IDE_TFLAG_IN_HOB_LBAH = (1 << 24), | |
1136 | IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL | | |
1137 | IDE_TFLAG_IN_HOB_LBAM | | |
1138 | IDE_TFLAG_IN_HOB_LBAH, | |
1139 | IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | | |
1140 | IDE_TFLAG_IN_HOB_NSECT | | |
1141 | IDE_TFLAG_IN_HOB_LBA, | |
92eb4380 | 1142 | IDE_TFLAG_IN_FEATURE = (1 << 1), |
c2b57cdc BZ |
1143 | IDE_TFLAG_IN_NSECT = (1 << 25), |
1144 | IDE_TFLAG_IN_LBAL = (1 << 26), | |
1145 | IDE_TFLAG_IN_LBAM = (1 << 27), | |
1146 | IDE_TFLAG_IN_LBAH = (1 << 28), | |
1147 | IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL | | |
1148 | IDE_TFLAG_IN_LBAM | | |
1149 | IDE_TFLAG_IN_LBAH, | |
1150 | IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | | |
1151 | IDE_TFLAG_IN_LBA, | |
1152 | IDE_TFLAG_IN_DEVICE = (1 << 29), | |
657cc1a8 BZ |
1153 | IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | |
1154 | IDE_TFLAG_IN_HOB, | |
1155 | IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | | |
1156 | IDE_TFLAG_IN_TF, | |
1157 | IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | | |
1158 | IDE_TFLAG_IN_DEVICE, | |
35cf2b94 TH |
1159 | /* force 16-bit I/O operations */ |
1160 | IDE_TFLAG_IO_16BIT = (1 << 30), | |
395d8ef5 BZ |
1161 | /* ide_task_t was allocated using kmalloc() */ |
1162 | IDE_TFLAG_DYN = (1 << 31), | |
9e42237f BZ |
1163 | }; |
1164 | ||
650d841d BZ |
1165 | struct ide_taskfile { |
1166 | u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */ | |
1167 | ||
1168 | u8 hob_feature; /* 1-5: additional data to support LBA48 */ | |
1169 | u8 hob_nsect; | |
1170 | u8 hob_lbal; | |
1171 | u8 hob_lbam; | |
1172 | u8 hob_lbah; | |
1173 | ||
1174 | u8 data; /* 6: low data byte (for TASKFILE IOCTL) */ | |
1175 | ||
1176 | union { /* 7: */ | |
1177 | u8 error; /* read: error */ | |
1178 | u8 feature; /* write: feature */ | |
1179 | }; | |
1180 | ||
1181 | u8 nsect; /* 8: number of sectors */ | |
1182 | u8 lbal; /* 9: LBA low */ | |
1183 | u8 lbam; /* 10: LBA mid */ | |
1184 | u8 lbah; /* 11: LBA high */ | |
1185 | ||
1186 | u8 device; /* 12: device select */ | |
1187 | ||
1188 | union { /* 13: */ | |
1189 | u8 status; /* read: status */ | |
1190 | u8 command; /* write: command */ | |
1191 | }; | |
1192 | }; | |
1193 | ||
1da177e4 | 1194 | typedef struct ide_task_s { |
650d841d BZ |
1195 | union { |
1196 | struct ide_taskfile tf; | |
1197 | u8 tf_array[14]; | |
1198 | }; | |
866e2ec9 | 1199 | u32 tf_flags; |
1da177e4 | 1200 | int data_phase; |
1da177e4 LT |
1201 | struct request *rq; /* copy of request */ |
1202 | void *special; /* valid_t generally */ | |
1203 | } ide_task_t; | |
1204 | ||
089c5c7e | 1205 | void ide_tf_dump(const char *, struct ide_taskfile *); |
1da177e4 | 1206 | |
374e042c BZ |
1207 | void ide_exec_command(ide_hwif_t *, u8); |
1208 | u8 ide_read_status(ide_hwif_t *); | |
1209 | u8 ide_read_altstatus(ide_hwif_t *); | |
1210 | u8 ide_read_sff_dma_status(ide_hwif_t *); | |
1211 | ||
1212 | void ide_set_irq(ide_hwif_t *, int); | |
1213 | ||
1214 | void ide_tf_load(ide_drive_t *, ide_task_t *); | |
1215 | void ide_tf_read(ide_drive_t *, ide_task_t *); | |
1216 | ||
1217 | void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int); | |
1218 | void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int); | |
1219 | ||
acaa0f5f BZ |
1220 | int ide_io_buffers(ide_drive_t *, struct ide_atapi_pc *, unsigned int, int); |
1221 | ||
1da177e4 | 1222 | extern void SELECT_DRIVE(ide_drive_t *); |
ed4af48f | 1223 | void SELECT_MASK(ide_drive_t *, int); |
1da177e4 | 1224 | |
92eb4380 | 1225 | u8 ide_read_error(ide_drive_t *); |
1823649b | 1226 | void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); |
92eb4380 | 1227 | |
1da177e4 | 1228 | extern int drive_is_ready(ide_drive_t *); |
1da177e4 | 1229 | |
2fc57388 BZ |
1230 | void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); |
1231 | ||
51509eec BZ |
1232 | int ide_check_atapi_device(ide_drive_t *, const char *); |
1233 | ||
7bf7420a BZ |
1234 | void ide_init_pc(struct ide_atapi_pc *); |
1235 | ||
7645c151 BZ |
1236 | /* |
1237 | * Special requests for ide-tape block device strategy routine. | |
1238 | * | |
1239 | * In order to service a character device command, we add special requests to | |
1240 | * the tail of our block device request queue and wait for their completion. | |
1241 | */ | |
1242 | enum { | |
1243 | REQ_IDETAPE_PC1 = (1 << 0), /* packet command (first stage) */ | |
1244 | REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */ | |
1245 | REQ_IDETAPE_READ = (1 << 2), | |
1246 | REQ_IDETAPE_WRITE = (1 << 3), | |
1247 | }; | |
1248 | ||
2ac07d92 | 1249 | int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *); |
7645c151 | 1250 | |
de699ad5 | 1251 | int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *); |
0c8a6c7a | 1252 | int ide_do_start_stop(ide_drive_t *, struct gendisk *, int); |
0578042d | 1253 | int ide_set_media_lock(ide_drive_t *, struct gendisk *, int); |
6b0da28b BZ |
1254 | void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *); |
1255 | void ide_retry_pc(ide_drive_t *, struct gendisk *); | |
0578042d | 1256 | |
844b9468 BZ |
1257 | static inline unsigned long ide_scsi_get_timeout(struct ide_atapi_pc *pc) |
1258 | { | |
1259 | return max_t(unsigned long, WAIT_CMD, pc->timeout - jiffies); | |
1260 | } | |
1261 | ||
1262 | int ide_scsi_expiry(ide_drive_t *); | |
1263 | ||
baf08f0b | 1264 | ide_startstop_t ide_issue_pc(ide_drive_t *, unsigned int, ide_expiry_t *); |
594c16d8 | 1265 | |
f6e29e35 | 1266 | ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); |
1da177e4 | 1267 | |
4d7a984b TH |
1268 | void task_end_request(ide_drive_t *, struct request *, u8); |
1269 | ||
ac026ff2 | 1270 | int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16); |
9a3c49be BZ |
1271 | int ide_no_data_taskfile(ide_drive_t *, ide_task_t *); |
1272 | ||
1da177e4 | 1273 | int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long); |
1da177e4 | 1274 | |
1da177e4 | 1275 | extern int ide_driveid_update(ide_drive_t *); |
1da177e4 LT |
1276 | extern int ide_config_drive_speed(ide_drive_t *, u8); |
1277 | extern u8 eighty_ninty_three (ide_drive_t *); | |
1da177e4 LT |
1278 | extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); |
1279 | ||
1280 | extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); | |
1281 | ||
1da177e4 LT |
1282 | extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); |
1283 | ||
1da177e4 | 1284 | extern void ide_timer_expiry(unsigned long); |
7d12e780 | 1285 | extern irqreturn_t ide_intr(int irq, void *dev_id); |
165125e1 | 1286 | extern void do_ide_request(struct request_queue *); |
1da177e4 LT |
1287 | |
1288 | void ide_init_disk(struct gendisk *, ide_drive_t *); | |
1289 | ||
6d208b39 | 1290 | #ifdef CONFIG_IDEPCI_PCIBUS_ORDER |
725522b5 GKH |
1291 | extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); |
1292 | #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME) | |
6d208b39 BZ |
1293 | #else |
1294 | #define ide_pci_register_driver(d) pci_register_driver(d) | |
1295 | #endif | |
1296 | ||
c97c6aca | 1297 | void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, |
48c3c107 | 1298 | hw_regs_t *, hw_regs_t **); |
85620436 | 1299 | void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); |
1da177e4 | 1300 | |
8e882ba1 | 1301 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
b123f56e BZ |
1302 | int ide_pci_set_master(struct pci_dev *, const char *); |
1303 | unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); | |
ebb00fb5 | 1304 | int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *); |
b123f56e | 1305 | int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); |
c413b9b9 | 1306 | #else |
b123f56e BZ |
1307 | static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, |
1308 | const struct ide_port_info *d) | |
1309 | { | |
1310 | return -EINVAL; | |
1311 | } | |
c413b9b9 BZ |
1312 | #endif |
1313 | ||
1da177e4 LT |
1314 | typedef struct ide_pci_enablebit_s { |
1315 | u8 reg; /* byte pci reg holding the enable-bit */ | |
1316 | u8 mask; /* mask to isolate the enable-bit */ | |
1317 | u8 val; /* value of masked reg when "enabled" */ | |
1318 | } ide_pci_enablebit_t; | |
1319 | ||
1320 | enum { | |
1321 | /* Uses ISA control ports not PCI ones. */ | |
a5d8c5c8 | 1322 | IDE_HFLAG_ISA_PORTS = (1 << 0), |
6a824c92 | 1323 | /* single port device */ |
a5d8c5c8 | 1324 | IDE_HFLAG_SINGLE = (1 << 1), |
6a824c92 BZ |
1325 | /* don't use legacy PIO blacklist */ |
1326 | IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2), | |
e277f91f BZ |
1327 | /* set for the second port of QD65xx */ |
1328 | IDE_HFLAG_QD_2ND_PORT = (1 << 3), | |
26bcb879 BZ |
1329 | /* use PIO8/9 for prefetch off/on */ |
1330 | IDE_HFLAG_ABUSE_PREFETCH = (1 << 4), | |
1331 | /* use PIO6/7 for fast-devsel off/on */ | |
1332 | IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5), | |
1333 | /* use 100-102 and 200-202 PIO values to set DMA modes */ | |
1334 | IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6), | |
aedea591 BZ |
1335 | /* |
1336 | * keep DMA setting when programming PIO mode, may be used only | |
1337 | * for hosts which have separate PIO and DMA timings (ie. PMAC) | |
1338 | */ | |
1339 | IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7), | |
88b2b32b BZ |
1340 | /* program host for the transfer mode after programming device */ |
1341 | IDE_HFLAG_POST_SET_MODE = (1 << 8), | |
1342 | /* don't program host/device for the transfer mode ("smart" hosts) */ | |
1343 | IDE_HFLAG_NO_SET_MODE = (1 << 9), | |
0ae2e178 BZ |
1344 | /* trust BIOS for programming chipset/device for DMA */ |
1345 | IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10), | |
cafa027b BZ |
1346 | /* host is CS5510/CS5520 */ |
1347 | IDE_HFLAG_CS5520 = (1 << 11), | |
33c1002e BZ |
1348 | /* ATAPI DMA is unsupported */ |
1349 | IDE_HFLAG_NO_ATAPI_DMA = (1 << 12), | |
5e71d9c5 BZ |
1350 | /* set if host is a "non-bootable" controller */ |
1351 | IDE_HFLAG_NON_BOOTABLE = (1 << 13), | |
47b68788 BZ |
1352 | /* host doesn't support DMA */ |
1353 | IDE_HFLAG_NO_DMA = (1 << 14), | |
1354 | /* check if host is PCI IDE device before allowing DMA */ | |
1355 | IDE_HFLAG_NO_AUTODMA = (1 << 15), | |
c5dd43ec BZ |
1356 | /* host uses MMIO */ |
1357 | IDE_HFLAG_MMIO = (1 << 16), | |
238e4f14 BZ |
1358 | /* no LBA48 */ |
1359 | IDE_HFLAG_NO_LBA48 = (1 << 17), | |
1360 | /* no LBA48 DMA */ | |
1361 | IDE_HFLAG_NO_LBA48_DMA = (1 << 18), | |
ed67b923 BZ |
1362 | /* data FIFO is cleared by an error */ |
1363 | IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19), | |
1c51361a BZ |
1364 | /* serialize ports */ |
1365 | IDE_HFLAG_SERIALIZE = (1 << 20), | |
3985ee3b BZ |
1366 | /* use legacy IRQs */ |
1367 | IDE_HFLAG_LEGACY_IRQS = (1 << 21), | |
8acf28c0 BZ |
1368 | /* force use of legacy IRQs */ |
1369 | IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22), | |
272a3709 BZ |
1370 | /* limit LBA48 requests to 256 sectors */ |
1371 | IDE_HFLAG_RQSIZE_256 = (1 << 23), | |
caea7602 BZ |
1372 | /* use 32-bit I/O ops */ |
1373 | IDE_HFLAG_IO_32BIT = (1 << 24), | |
1374 | /* unmask IRQs */ | |
1375 | IDE_HFLAG_UNMASK_IRQS = (1 << 25), | |
1fd18905 BZ |
1376 | /* serialize ports if DMA is possible (for sl82c105) */ |
1377 | IDE_HFLAG_SERIALIZE_DMA = (1 << 27), | |
8ac2b42a BZ |
1378 | /* force host out of "simplex" mode */ |
1379 | IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28), | |
4166c199 BZ |
1380 | /* DSC overlap is unsupported */ |
1381 | IDE_HFLAG_NO_DSC = (1 << 29), | |
807b90d0 BZ |
1382 | /* never use 32-bit I/O ops */ |
1383 | IDE_HFLAG_NO_IO_32BIT = (1 << 30), | |
1384 | /* never unmask IRQs */ | |
1385 | IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31), | |
1da177e4 LT |
1386 | }; |
1387 | ||
7cab14a7 | 1388 | #ifdef CONFIG_BLK_DEV_OFFBOARD |
7cab14a7 | 1389 | # define IDE_HFLAG_OFF_BOARD 0 |
5e71d9c5 BZ |
1390 | #else |
1391 | # define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE | |
7cab14a7 BZ |
1392 | #endif |
1393 | ||
039788e1 | 1394 | struct ide_port_info { |
1da177e4 | 1395 | char *name; |
a326b02b | 1396 | unsigned int (*init_chipset)(struct pci_dev *); |
1da177e4 LT |
1397 | void (*init_iops)(ide_hwif_t *); |
1398 | void (*init_hwif)(ide_hwif_t *); | |
b123f56e BZ |
1399 | int (*init_dma)(ide_hwif_t *, |
1400 | const struct ide_port_info *); | |
ac95beed | 1401 | |
374e042c | 1402 | const struct ide_tp_ops *tp_ops; |
ac95beed | 1403 | const struct ide_port_ops *port_ops; |
f37afdac | 1404 | const struct ide_dma_ops *dma_ops; |
ac95beed | 1405 | |
1da177e4 | 1406 | ide_pci_enablebit_t enablebits[2]; |
528a572d | 1407 | hwif_chipset_t chipset; |
9ffcf364 | 1408 | u32 host_flags; |
4099d143 | 1409 | u8 pio_mask; |
5f8b6c34 BZ |
1410 | u8 swdma_mask; |
1411 | u8 mwdma_mask; | |
18137207 | 1412 | u8 udma_mask; |
039788e1 | 1413 | }; |
1da177e4 | 1414 | |
6cdf6eb3 BZ |
1415 | int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *); |
1416 | int ide_pci_init_two(struct pci_dev *, struct pci_dev *, | |
1417 | const struct ide_port_info *, void *); | |
ef0b0427 | 1418 | void ide_pci_remove(struct pci_dev *); |
1da177e4 | 1419 | |
feb22b7f BZ |
1420 | #ifdef CONFIG_PM |
1421 | int ide_pci_suspend(struct pci_dev *, pm_message_t); | |
1422 | int ide_pci_resume(struct pci_dev *); | |
1423 | #else | |
1424 | #define ide_pci_suspend NULL | |
1425 | #define ide_pci_resume NULL | |
1426 | #endif | |
1427 | ||
1da177e4 LT |
1428 | void ide_map_sg(ide_drive_t *, struct request *); |
1429 | void ide_init_sg_cmd(ide_drive_t *, struct request *); | |
1430 | ||
1431 | #define BAD_DMA_DRIVE 0 | |
1432 | #define GOOD_DMA_DRIVE 1 | |
1433 | ||
65e5f2e3 JC |
1434 | struct drive_list_entry { |
1435 | const char *id_model; | |
1436 | const char *id_firmware; | |
1437 | }; | |
1438 | ||
4dde4492 | 1439 | int ide_in_drive_list(u16 *, const struct drive_list_entry *); |
a5b7e70d BZ |
1440 | |
1441 | #ifdef CONFIG_BLK_DEV_IDEDMA | |
1da177e4 | 1442 | int __ide_dma_bad_drive(ide_drive_t *); |
3ab7efe8 | 1443 | int ide_id_dma_bug(ide_drive_t *); |
7670df73 BZ |
1444 | |
1445 | u8 ide_find_dma_mode(ide_drive_t *, u8); | |
1446 | ||
1447 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) | |
1448 | { | |
1449 | return ide_find_dma_mode(drive, XFER_UDMA_6); | |
1450 | } | |
1451 | ||
4a546e04 | 1452 | void ide_dma_off_quietly(ide_drive_t *); |
7469aaf6 | 1453 | void ide_dma_off(ide_drive_t *); |
4a546e04 | 1454 | void ide_dma_on(ide_drive_t *); |
3608b5d7 | 1455 | int ide_set_dma(ide_drive_t *); |
578cfa0d | 1456 | void ide_check_dma_crc(ide_drive_t *); |
1da177e4 LT |
1457 | ide_startstop_t ide_dma_intr(ide_drive_t *); |
1458 | ||
062f9f02 BZ |
1459 | int ide_build_sglist(ide_drive_t *, struct request *); |
1460 | void ide_destroy_dmatable(ide_drive_t *); | |
1461 | ||
8e882ba1 | 1462 | #ifdef CONFIG_BLK_DEV_IDEDMA_SFF |
1da177e4 | 1463 | extern int ide_build_dmatable(ide_drive_t *, struct request *); |
b8e73fba BZ |
1464 | int ide_allocate_dma_engine(ide_hwif_t *); |
1465 | void ide_release_dma_engine(ide_hwif_t *); | |
1da177e4 | 1466 | |
15ce926a | 1467 | void ide_dma_host_set(ide_drive_t *, int); |
1da177e4 | 1468 | extern int ide_dma_setup(ide_drive_t *); |
f37afdac | 1469 | void ide_dma_exec_cmd(ide_drive_t *, u8); |
1da177e4 LT |
1470 | extern void ide_dma_start(ide_drive_t *); |
1471 | extern int __ide_dma_end(ide_drive_t *); | |
f37afdac | 1472 | int ide_dma_test_irq(ide_drive_t *); |
841d2a9b | 1473 | extern void ide_dma_lost_irq(ide_drive_t *); |
c283f5db | 1474 | extern void ide_dma_timeout(ide_drive_t *); |
71fc9fcc | 1475 | extern const struct ide_dma_ops sff_dma_ops; |
8e882ba1 | 1476 | #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */ |
1da177e4 LT |
1477 | |
1478 | #else | |
3ab7efe8 | 1479 | static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; } |
7670df73 | 1480 | static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } |
2d5eaa6d | 1481 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } |
4a546e04 | 1482 | static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; } |
7469aaf6 | 1483 | static inline void ide_dma_off(ide_drive_t *drive) { ; } |
4a546e04 | 1484 | static inline void ide_dma_on(ide_drive_t *drive) { ; } |
1da177e4 | 1485 | static inline void ide_dma_verbose(ide_drive_t *drive) { ; } |
3608b5d7 | 1486 | static inline int ide_set_dma(ide_drive_t *drive) { return 1; } |
578cfa0d | 1487 | static inline void ide_check_dma_crc(ide_drive_t *drive) { ; } |
1da177e4 LT |
1488 | #endif /* CONFIG_BLK_DEV_IDEDMA */ |
1489 | ||
8e882ba1 | 1490 | #ifndef CONFIG_BLK_DEV_IDEDMA_SFF |
0d1bad21 | 1491 | static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; } |
1da177e4 LT |
1492 | #endif |
1493 | ||
e3a59b4d HR |
1494 | #ifdef CONFIG_BLK_DEV_IDEACPI |
1495 | extern int ide_acpi_exec_tfs(ide_drive_t *drive); | |
1496 | extern void ide_acpi_get_timing(ide_hwif_t *hwif); | |
1497 | extern void ide_acpi_push_timing(ide_hwif_t *hwif); | |
1498 | extern void ide_acpi_init(ide_hwif_t *hwif); | |
eafd88a3 | 1499 | void ide_acpi_port_init_devices(ide_hwif_t *); |
5e32132b | 1500 | extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); |
e3a59b4d HR |
1501 | #else |
1502 | static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } | |
1503 | static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } | |
1504 | static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } | |
1505 | static inline void ide_acpi_init(ide_hwif_t *hwif) { ; } | |
eafd88a3 | 1506 | static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; } |
5e32132b | 1507 | static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {} |
e3a59b4d HR |
1508 | #endif |
1509 | ||
fbd13088 | 1510 | void ide_remove_port_from_hwgroup(ide_hwif_t *); |
387750c3 | 1511 | void ide_unregister(ide_hwif_t *); |
1da177e4 LT |
1512 | |
1513 | void ide_register_region(struct gendisk *); | |
1514 | void ide_unregister_region(struct gendisk *); | |
1515 | ||
f01393e4 | 1516 | void ide_undecoded_slave(ide_drive_t *); |
1da177e4 | 1517 | |
9fd91d95 BZ |
1518 | void ide_port_apply_params(ide_hwif_t *); |
1519 | ||
48c3c107 BZ |
1520 | struct ide_host *ide_host_alloc_all(const struct ide_port_info *, hw_regs_t **); |
1521 | struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); | |
8a69580e | 1522 | void ide_host_free(struct ide_host *); |
48c3c107 BZ |
1523 | int ide_host_register(struct ide_host *, const struct ide_port_info *, |
1524 | hw_regs_t **); | |
6f904d01 BZ |
1525 | int ide_host_add(const struct ide_port_info *, hw_regs_t **, |
1526 | struct ide_host **); | |
48c3c107 | 1527 | void ide_host_remove(struct ide_host *); |
0bfeee7d | 1528 | int ide_legacy_device_add(const struct ide_port_info *, unsigned long); |
2dde7861 BZ |
1529 | void ide_port_unregister_devices(ide_hwif_t *); |
1530 | void ide_port_scan(ide_hwif_t *); | |
1da177e4 LT |
1531 | |
1532 | static inline void *ide_get_hwifdata (ide_hwif_t * hwif) | |
1533 | { | |
1534 | return hwif->hwif_data; | |
1535 | } | |
1536 | ||
1537 | static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) | |
1538 | { | |
1539 | hwif->hwif_data = data; | |
1540 | } | |
1541 | ||
3ab7efe8 | 1542 | const char *ide_xfer_verbose(u8 mode); |
1da177e4 LT |
1543 | extern void ide_toggle_bounce(ide_drive_t *drive, int on); |
1544 | extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate); | |
1545 | ||
a501633c | 1546 | u64 ide_get_lba_addr(struct ide_taskfile *, int); |
1da177e4 LT |
1547 | u8 ide_dump_status(ide_drive_t *, const char *, u8); |
1548 | ||
3be53f3f BZ |
1549 | struct ide_timing { |
1550 | u8 mode; | |
1551 | u8 setup; /* t1 */ | |
1552 | u16 act8b; /* t2 for 8-bit io */ | |
1553 | u16 rec8b; /* t2i for 8-bit io */ | |
1554 | u16 cyc8b; /* t0 for 8-bit io */ | |
1555 | u16 active; /* t2 or tD */ | |
1556 | u16 recover; /* t2i or tK */ | |
1557 | u16 cycle; /* t0 */ | |
1558 | u16 udma; /* t2CYCTYP/2 */ | |
1559 | }; | |
1560 | ||
1561 | enum { | |
1562 | IDE_TIMING_SETUP = (1 << 0), | |
1563 | IDE_TIMING_ACT8B = (1 << 1), | |
1564 | IDE_TIMING_REC8B = (1 << 2), | |
1565 | IDE_TIMING_CYC8B = (1 << 3), | |
1566 | IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B | | |
1567 | IDE_TIMING_CYC8B, | |
1568 | IDE_TIMING_ACTIVE = (1 << 4), | |
1569 | IDE_TIMING_RECOVER = (1 << 5), | |
1570 | IDE_TIMING_CYCLE = (1 << 6), | |
1571 | IDE_TIMING_UDMA = (1 << 7), | |
1572 | IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT | | |
1573 | IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER | | |
1574 | IDE_TIMING_CYCLE | IDE_TIMING_UDMA, | |
1575 | }; | |
1576 | ||
f06ab340 | 1577 | struct ide_timing *ide_timing_find_mode(u8); |
c9d6c1a2 | 1578 | u16 ide_pio_cycle_time(ide_drive_t *, u8); |
f06ab340 BZ |
1579 | void ide_timing_merge(struct ide_timing *, struct ide_timing *, |
1580 | struct ide_timing *, unsigned int); | |
1581 | int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int); | |
1582 | ||
9ad54093 BZ |
1583 | int ide_scan_pio_blacklist(char *); |
1584 | ||
2134758d | 1585 | u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8); |
1da177e4 | 1586 | |
88b2b32b BZ |
1587 | int ide_set_pio_mode(ide_drive_t *, u8); |
1588 | int ide_set_dma_mode(ide_drive_t *, u8); | |
1589 | ||
26bcb879 BZ |
1590 | void ide_set_pio(ide_drive_t *, u8); |
1591 | ||
1592 | static inline void ide_set_max_pio(ide_drive_t *drive) | |
1593 | { | |
1594 | ide_set_pio(drive, 255); | |
1595 | } | |
1da177e4 LT |
1596 | |
1597 | extern spinlock_t ide_lock; | |
ef29888e | 1598 | extern struct mutex ide_cfg_mtx; |
1da177e4 LT |
1599 | /* |
1600 | * Structure locking: | |
1601 | * | |
ef29888e | 1602 | * ide_cfg_mtx and ide_lock together protect changes to |
1da177e4 LT |
1603 | * ide_hwif_t->{next,hwgroup} |
1604 | * ide_drive_t->next | |
1605 | * | |
1606 | * ide_hwgroup_t->busy: ide_lock | |
1607 | * ide_hwgroup_t->hwif: ide_lock | |
1608 | * ide_hwif_t->mate: constant, no locking | |
1609 | * ide_drive_t->hwif: constant, no locking | |
1610 | */ | |
1611 | ||
366c7f55 | 1612 | #define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0) |
1da177e4 LT |
1613 | |
1614 | extern struct bus_type ide_bus_type; | |
f74c9141 | 1615 | extern struct class *ide_port_class; |
1da177e4 | 1616 | |
7b9f25b5 BZ |
1617 | static inline void ide_dump_identify(u8 *id) |
1618 | { | |
1619 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); | |
1620 | } | |
1621 | ||
86b37860 CL |
1622 | static inline int hwif_to_node(ide_hwif_t *hwif) |
1623 | { | |
96f80219 | 1624 | return hwif->dev ? dev_to_node(hwif->dev) : -1; |
86b37860 CL |
1625 | } |
1626 | ||
7e59ea21 | 1627 | static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) |
1b678347 | 1628 | { |
7e59ea21 | 1629 | ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1]; |
1b678347 | 1630 | |
97100fc8 | 1631 | return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL; |
1b678347 | 1632 | } |
1da177e4 | 1633 | #endif /* _IDE_H */ |