Commit | Line | Data |
---|---|---|
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> | |
11 | #include <linux/hdreg.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> |
e3a59b4d HR |
20 | #ifdef CONFIG_BLK_DEV_IDEACPI |
21 | #include <acpi/acpi.h> | |
22 | #endif | |
1da177e4 LT |
23 | #include <asm/byteorder.h> |
24 | #include <asm/system.h> | |
25 | #include <asm/io.h> | |
f9383c42 | 26 | #include <asm/mutex.h> |
1da177e4 | 27 | |
729d4de9 | 28 | #if defined(CONFIG_CRIS) || defined(CONFIG_FRV) |
4ee06b7e BZ |
29 | # define SUPPORT_VLB_SYNC 0 |
30 | #else | |
31 | # define SUPPORT_VLB_SYNC 1 | |
1da177e4 LT |
32 | #endif |
33 | ||
34 | /* | |
35 | * Used to indicate "no IRQ", should be a value that cannot be an IRQ | |
36 | * number. | |
37 | */ | |
38 | ||
39 | #define IDE_NO_IRQ (-1) | |
40 | ||
1da177e4 LT |
41 | typedef unsigned char byte; /* used everywhere */ |
42 | ||
43 | /* | |
44 | * Probably not wise to fiddle with these | |
45 | */ | |
46 | #define ERROR_MAX 8 /* Max read/write errors per sector */ | |
47 | #define ERROR_RESET 3 /* Reset controller every 4th retry */ | |
48 | #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ | |
49 | ||
1da177e4 LT |
50 | /* |
51 | * state flags | |
52 | */ | |
53 | ||
54 | #define DMA_PIO_RETRY 1 /* retrying in PIO */ | |
55 | ||
56 | #define HWIF(drive) ((ide_hwif_t *)((drive)->hwif)) | |
57 | #define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup)) | |
58 | ||
59 | /* | |
60 | * Definitions for accessing IDE controller registers | |
61 | */ | |
62 | #define IDE_NR_PORTS (10) | |
63 | ||
4c3032d8 BZ |
64 | struct ide_io_ports { |
65 | unsigned long data_addr; | |
66 | ||
67 | union { | |
68 | unsigned long error_addr; /* read: error */ | |
69 | unsigned long feature_addr; /* write: feature */ | |
70 | }; | |
71 | ||
72 | unsigned long nsect_addr; | |
73 | unsigned long lbal_addr; | |
74 | unsigned long lbam_addr; | |
75 | unsigned long lbah_addr; | |
76 | ||
77 | unsigned long device_addr; | |
78 | ||
79 | union { | |
80 | unsigned long status_addr; /* read: status */ | |
81 | unsigned long command_addr; /* write: command */ | |
82 | }; | |
83 | ||
84 | unsigned long ctl_addr; | |
85 | ||
86 | unsigned long irq_addr; | |
87 | }; | |
1da177e4 LT |
88 | |
89 | #define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) | |
1da177e4 | 90 | |
3a7d2484 BZ |
91 | #define BAD_R_STAT (ATA_BUSY | ATA_ERR) |
92 | #define BAD_W_STAT (BAD_R_STAT | ATA_DF) | |
93 | #define BAD_STAT (BAD_R_STAT | ATA_DRQ) | |
94 | #define DRIVE_READY (ATA_DRDY | ATA_DSC) | |
95 | ||
96 | #define BAD_CRC (ATA_ABORTED | ATA_ICRC) | |
1da177e4 LT |
97 | |
98 | #define SATA_NR_PORTS (3) /* 16 possible ?? */ | |
99 | ||
100 | #define SATA_STATUS_OFFSET (0) | |
1da177e4 | 101 | #define SATA_ERROR_OFFSET (1) |
1da177e4 | 102 | #define SATA_CONTROL_OFFSET (2) |
1da177e4 | 103 | |
1da177e4 LT |
104 | /* |
105 | * Our Physical Region Descriptor (PRD) table should be large enough | |
106 | * to handle the biggest I/O request we are likely to see. Since requests | |
107 | * can have no more than 256 sectors, and since the typical blocksize is | |
108 | * two or more sectors, we could get by with a limit of 128 entries here for | |
109 | * the usual worst case. Most requests seem to include some contiguous blocks, | |
110 | * further reducing the number of table entries required. | |
111 | * | |
112 | * The driver reverts to PIO mode for individual requests that exceed | |
113 | * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling | |
114 | * 100% of all crazy scenarios here is not necessary. | |
115 | * | |
116 | * As it turns out though, we must allocate a full 4KB page for this, | |
117 | * so the two PRD tables (ide0 & ide1) will each get half of that, | |
118 | * allowing each to have about 256 entries (8 bytes each) from this. | |
119 | */ | |
120 | #define PRD_BYTES 8 | |
121 | #define PRD_ENTRIES 256 | |
122 | ||
123 | /* | |
124 | * Some more useful definitions | |
125 | */ | |
126 | #define PARTN_BITS 6 /* number of minor dev bits for partitions */ | |
127 | #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ | |
128 | #define SECTOR_SIZE 512 | |
129 | #define SECTOR_WORDS (SECTOR_SIZE / 4) /* number of 32bit words per sector */ | |
130 | #define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t))) | |
131 | ||
132 | /* | |
133 | * Timeouts for various operations: | |
134 | */ | |
135 | #define WAIT_DRQ (HZ/10) /* 100msec - spec allows up to 20ms */ | |
136 | #define WAIT_READY (5*HZ) /* 5sec - some laptops are very slow */ | |
137 | #define WAIT_PIDENTIFY (10*HZ) /* 10sec - should be less than 3ms (?), if all ATAPI CD is closed at boot */ | |
138 | #define WAIT_WORSTCASE (30*HZ) /* 30sec - worst case when spinning up */ | |
139 | #define WAIT_CMD (10*HZ) /* 10sec - maximum wait for an IRQ to happen */ | |
140 | #define WAIT_MIN_SLEEP (2*HZ/100) /* 20msec - minimum sleep time */ | |
141 | ||
79e36a9f EO |
142 | /* |
143 | * Op codes for special requests to be handled by ide_special_rq(). | |
144 | * Values should be in the range of 0x20 to 0x3f. | |
145 | */ | |
146 | #define REQ_DRIVE_RESET 0x20 | |
147 | ||
1da177e4 LT |
148 | /* |
149 | * Check for an interrupt and acknowledge the interrupt status | |
150 | */ | |
151 | struct hwif_s; | |
152 | typedef int (ide_ack_intr_t)(struct hwif_s *); | |
153 | ||
1da177e4 LT |
154 | /* |
155 | * hwif_chipset_t is used to keep track of the specific hardware | |
156 | * chipset used by each IDE interface, if known. | |
157 | */ | |
528a572d | 158 | enum { ide_unknown, ide_generic, ide_pci, |
1da177e4 LT |
159 | ide_cmd640, ide_dtc2278, ide_ali14xx, |
160 | ide_qd65xx, ide_umc8672, ide_ht6560b, | |
161 | ide_rz1000, ide_trm290, | |
162 | ide_cmd646, ide_cy82c693, ide_4drives, | |
b7691646 | 163 | ide_pmac, ide_acorn, |
9a0e77f2 | 164 | ide_au1xxx, ide_palm3710 |
528a572d BZ |
165 | }; |
166 | ||
167 | typedef u8 hwif_chipset_t; | |
1da177e4 LT |
168 | |
169 | /* | |
170 | * Structure to hold all information about the location of this port | |
171 | */ | |
172 | typedef struct hw_regs_s { | |
4c3032d8 BZ |
173 | union { |
174 | struct ide_io_ports io_ports; | |
175 | unsigned long io_ports_array[IDE_NR_PORTS]; | |
176 | }; | |
177 | ||
1da177e4 | 178 | int irq; /* our irq number */ |
1da177e4 LT |
179 | ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ |
180 | hwif_chipset_t chipset; | |
c56c5648 | 181 | struct device *dev, *parent; |
d6276b5f | 182 | unsigned long config; |
1da177e4 LT |
183 | } hw_regs_t; |
184 | ||
cbb010c1 | 185 | void ide_init_port_data(struct hwif_s *, unsigned int); |
57c802e8 | 186 | void ide_init_port_hw(struct hwif_s *, hw_regs_t *); |
baa8f3e9 | 187 | |
1da177e4 LT |
188 | static inline void ide_std_init_ports(hw_regs_t *hw, |
189 | unsigned long io_addr, | |
190 | unsigned long ctl_addr) | |
191 | { | |
192 | unsigned int i; | |
193 | ||
4c3032d8 BZ |
194 | for (i = 0; i <= 7; i++) |
195 | hw->io_ports_array[i] = io_addr++; | |
1da177e4 | 196 | |
4c3032d8 | 197 | hw->io_ports.ctl_addr = ctl_addr; |
1da177e4 LT |
198 | } |
199 | ||
a861beb1 BZ |
200 | /* for IDE PCI controllers in legacy mode, temporary */ |
201 | static inline int __ide_default_irq(unsigned long base) | |
202 | { | |
203 | switch (base) { | |
204 | #ifdef CONFIG_IA64 | |
205 | case 0x1f0: return isa_irq_to_vector(14); | |
206 | case 0x170: return isa_irq_to_vector(15); | |
207 | #else | |
208 | case 0x1f0: return 14; | |
209 | case 0x170: return 15; | |
210 | #endif | |
211 | } | |
212 | return 0; | |
213 | } | |
214 | ||
2a8f7450 BZ |
215 | #if defined(CONFIG_ARM) || defined(CONFIG_FRV) || defined(CONFIG_M68K) || \ |
216 | defined(CONFIG_MIPS) || defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \ | |
217 | || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64) | |
1da177e4 | 218 | #include <asm/ide.h> |
2a8f7450 BZ |
219 | #else |
220 | #include <asm-generic/ide_iops.h> | |
221 | #endif | |
1da177e4 | 222 | |
c5bfc375 | 223 | #define MAX_HWIFS 10 |
83ae20c8 | 224 | |
1da177e4 LT |
225 | /* Currently only m68k, apus and m8xx need it */ |
226 | #ifndef IDE_ARCH_ACK_INTR | |
227 | # define ide_ack_intr(hwif) (1) | |
228 | #endif | |
229 | ||
230 | /* Currently only Atari needs it */ | |
231 | #ifndef IDE_ARCH_LOCK | |
232 | # define ide_release_lock() do {} while (0) | |
233 | # define ide_get_lock(hdlr, data) do {} while (0) | |
234 | #endif /* IDE_ARCH_LOCK */ | |
235 | ||
236 | /* | |
237 | * Now for the data we need to maintain per-drive: ide_drive_t | |
238 | */ | |
239 | ||
240 | #define ide_scsi 0x21 | |
241 | #define ide_disk 0x20 | |
242 | #define ide_optical 0x7 | |
243 | #define ide_cdrom 0x5 | |
244 | #define ide_tape 0x1 | |
245 | #define ide_floppy 0x0 | |
246 | ||
247 | /* | |
248 | * Special Driver Flags | |
249 | * | |
250 | * set_geometry : respecify drive geometry | |
251 | * recalibrate : seek to cyl 0 | |
252 | * set_multmode : set multmode count | |
253 | * set_tune : tune interface for drive | |
254 | * serviced : service command | |
255 | * reserved : unused | |
256 | */ | |
257 | typedef union { | |
258 | unsigned all : 8; | |
259 | struct { | |
1da177e4 LT |
260 | unsigned set_geometry : 1; |
261 | unsigned recalibrate : 1; | |
262 | unsigned set_multmode : 1; | |
263 | unsigned set_tune : 1; | |
264 | unsigned serviced : 1; | |
265 | unsigned reserved : 3; | |
1da177e4 LT |
266 | } b; |
267 | } special_t; | |
268 | ||
1da177e4 LT |
269 | /* |
270 | * ATA-IDE Select Register, aka Device-Head | |
271 | * | |
272 | * head : always zeros here | |
273 | * unit : drive select number: 0/1 | |
274 | * bit5 : always 1 | |
275 | * lba : using LBA instead of CHS | |
276 | * bit7 : always 1 | |
277 | */ | |
278 | typedef union { | |
279 | unsigned all : 8; | |
280 | struct { | |
281 | #if defined(__LITTLE_ENDIAN_BITFIELD) | |
282 | unsigned head : 4; | |
283 | unsigned unit : 1; | |
284 | unsigned bit5 : 1; | |
285 | unsigned lba : 1; | |
286 | unsigned bit7 : 1; | |
287 | #elif defined(__BIG_ENDIAN_BITFIELD) | |
288 | unsigned bit7 : 1; | |
289 | unsigned lba : 1; | |
290 | unsigned bit5 : 1; | |
291 | unsigned unit : 1; | |
292 | unsigned head : 4; | |
293 | #else | |
294 | #error "Please fix <asm/byteorder.h>" | |
295 | #endif | |
296 | } b; | |
297 | } select_t, ata_select_t; | |
298 | ||
1da177e4 LT |
299 | /* |
300 | * Status returned from various ide_ functions | |
301 | */ | |
302 | typedef enum { | |
303 | ide_stopped, /* no drive operation was started */ | |
304 | ide_started, /* a drive operation was started, handler was set */ | |
305 | } ide_startstop_t; | |
306 | ||
307 | struct ide_driver_s; | |
308 | struct ide_settings_s; | |
309 | ||
e3a59b4d HR |
310 | #ifdef CONFIG_BLK_DEV_IDEACPI |
311 | struct ide_acpi_drive_link; | |
312 | struct ide_acpi_hwif_link; | |
313 | #endif | |
314 | ||
3b8ac539 BP |
315 | /* ATAPI device flags */ |
316 | enum { | |
317 | IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), | |
318 | IDE_AFLAG_MEDIA_CHANGED = (1 << 1), | |
319 | ||
320 | /* ide-cd */ | |
321 | /* Drive cannot lock the door. */ | |
322 | IDE_AFLAG_NO_DOORLOCK = (1 << 2), | |
323 | /* Drive cannot eject the disc. */ | |
324 | IDE_AFLAG_NO_EJECT = (1 << 3), | |
325 | /* Drive is a pre ATAPI 1.2 drive. */ | |
326 | IDE_AFLAG_PRE_ATAPI12 = (1 << 4), | |
327 | /* TOC addresses are in BCD. */ | |
328 | IDE_AFLAG_TOCADDR_AS_BCD = (1 << 5), | |
329 | /* TOC track numbers are in BCD. */ | |
330 | IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 6), | |
331 | /* | |
332 | * Drive does not provide data in multiples of SECTOR_SIZE | |
333 | * when more than one interrupt is needed. | |
334 | */ | |
335 | IDE_AFLAG_LIMIT_NFRAMES = (1 << 7), | |
336 | /* Seeking in progress. */ | |
337 | IDE_AFLAG_SEEKING = (1 << 8), | |
338 | /* Saved TOC information is current. */ | |
339 | IDE_AFLAG_TOC_VALID = (1 << 9), | |
340 | /* We think that the drive door is locked. */ | |
341 | IDE_AFLAG_DOOR_LOCKED = (1 << 10), | |
342 | /* SET_CD_SPEED command is unsupported. */ | |
343 | IDE_AFLAG_NO_SPEED_SELECT = (1 << 11), | |
344 | IDE_AFLAG_VERTOS_300_SSD = (1 << 12), | |
345 | IDE_AFLAG_VERTOS_600_ESD = (1 << 13), | |
346 | IDE_AFLAG_SANYO_3CD = (1 << 14), | |
347 | IDE_AFLAG_FULL_CAPS_PAGE = (1 << 15), | |
348 | IDE_AFLAG_PLAY_AUDIO_OK = (1 << 16), | |
349 | IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17), | |
350 | ||
351 | /* ide-floppy */ | |
352 | /* Format in progress */ | |
353 | IDE_AFLAG_FORMAT_IN_PROGRESS = (1 << 18), | |
354 | /* Avoid commands not supported in Clik drive */ | |
355 | IDE_AFLAG_CLIK_DRIVE = (1 << 19), | |
356 | /* Requires BH algorithm for packets */ | |
357 | IDE_AFLAG_ZIP_DRIVE = (1 << 20), | |
358 | ||
359 | /* ide-tape */ | |
360 | IDE_AFLAG_IGNORE_DSC = (1 << 21), | |
361 | /* 0 When the tape position is unknown */ | |
362 | IDE_AFLAG_ADDRESS_VALID = (1 << 22), | |
363 | /* Device already opened */ | |
364 | IDE_AFLAG_BUSY = (1 << 23), | |
365 | /* Attempt to auto-detect the current user block size */ | |
366 | IDE_AFLAG_DETECT_BS = (1 << 24), | |
367 | /* Currently on a filemark */ | |
368 | IDE_AFLAG_FILEMARK = (1 << 25), | |
369 | /* 0 = no tape is loaded, so we don't rewind after ejecting */ | |
f20f2586 BP |
370 | IDE_AFLAG_MEDIUM_PRESENT = (1 << 26), |
371 | ||
372 | IDE_AFLAG_NO_AUTOCLOSE = (1 << 27), | |
3b8ac539 BP |
373 | }; |
374 | ||
d7c26ebb | 375 | struct ide_drive_s { |
1da177e4 LT |
376 | char name[4]; /* drive name, such as "hda" */ |
377 | char driver_req[10]; /* requests specific driver */ | |
378 | ||
165125e1 | 379 | struct request_queue *queue; /* request queue */ |
1da177e4 LT |
380 | |
381 | struct request *rq; /* current request */ | |
382 | struct ide_drive_s *next; /* circular list of hwgroup drives */ | |
1da177e4 | 383 | void *driver_data; /* extra driver data */ |
48fb2688 | 384 | u16 *id; /* identification info */ |
7662d046 | 385 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 LT |
386 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
387 | struct ide_settings_s *settings;/* /proc/ide/ drive settings */ | |
7662d046 | 388 | #endif |
1da177e4 LT |
389 | struct hwif_s *hwif; /* actually (ide_hwif_t *) */ |
390 | ||
391 | unsigned long sleep; /* sleep until this time */ | |
392 | unsigned long service_start; /* time we started last request */ | |
393 | unsigned long service_time; /* service time of last request */ | |
394 | unsigned long timeout; /* max time to wait for irq */ | |
395 | ||
396 | special_t special; /* special action flags */ | |
397 | select_t select; /* basic drive/head select reg value */ | |
398 | ||
399 | u8 keep_settings; /* restore settings after drive reset */ | |
1da177e4 LT |
400 | u8 using_dma; /* disk is using dma for read/write */ |
401 | u8 retry_pio; /* retrying dma capable host in pio */ | |
402 | u8 state; /* retry state */ | |
403 | u8 waiting_for_dma; /* dma currently in progress */ | |
404 | u8 unmask; /* okay to unmask other irqs */ | |
36193484 | 405 | u8 noflush; /* don't attempt flushes */ |
1da177e4 LT |
406 | u8 dsc_overlap; /* DSC overlap */ |
407 | u8 nice1; /* give potential excess bandwidth */ | |
408 | ||
409 | unsigned present : 1; /* drive is physically present */ | |
410 | unsigned dead : 1; /* device ejected hint */ | |
411 | unsigned id_read : 1; /* 1=id read from disk 0 = synthetic */ | |
412 | unsigned noprobe : 1; /* from: hdx=noprobe */ | |
413 | unsigned removable : 1; /* 1 if need to do check_media_change */ | |
414 | unsigned attach : 1; /* needed for removable devices */ | |
1da177e4 LT |
415 | unsigned forced_geom : 1; /* 1 if hdx=c,h,s was given at boot */ |
416 | unsigned no_unmask : 1; /* disallow setting unmask bit */ | |
417 | unsigned no_io_32bit : 1; /* disallow enabling 32bit I/O */ | |
418 | unsigned atapi_overlap : 1; /* ATAPI overlap (not supported) */ | |
1da177e4 | 419 | unsigned doorlocking : 1; /* for removable only: door lock/unlock works */ |
c223701c | 420 | unsigned nodma : 1; /* disallow DMA */ |
1da177e4 | 421 | unsigned blocked : 1; /* 1=powermanagment told us not to do anything, so sleep nicely */ |
1da177e4 LT |
422 | unsigned scsi : 1; /* 0=default, 1=ide-scsi emulation */ |
423 | unsigned sleeping : 1; /* 1=sleeping & sleep field valid */ | |
424 | unsigned post_reset : 1; | |
7f8f48af | 425 | unsigned udma33_warned : 1; |
1da177e4 | 426 | |
1497943e | 427 | u8 addressing; /* 0=28-bit, 1=48-bit, 2=48-bit doing 28-bit */ |
1da177e4 LT |
428 | u8 quirk_list; /* considered quirky, set for a specific host */ |
429 | u8 init_speed; /* transfer rate set at boot */ | |
1da177e4 | 430 | u8 current_speed; /* current transfer rate set */ |
513daadd | 431 | u8 desired_speed; /* desired transfer rate set */ |
1da177e4 LT |
432 | u8 dn; /* now wide spread use */ |
433 | u8 wcache; /* status of write cache */ | |
434 | u8 acoustic; /* acoustic management */ | |
435 | u8 media; /* disk, cdrom, tape, floppy, ... */ | |
1da177e4 LT |
436 | u8 ready_stat; /* min status value for drive ready */ |
437 | u8 mult_count; /* current multiple sector setting */ | |
438 | u8 mult_req; /* requested multiple sector setting */ | |
439 | u8 tune_req; /* requested drive tuning setting */ | |
440 | u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ | |
3a7d2484 BZ |
441 | u8 bad_wstat; /* used for ignoring ATA_DF */ |
442 | u8 nowerr; /* used for ignoring ATA_DF */ | |
1da177e4 LT |
443 | u8 head; /* "real" number of heads */ |
444 | u8 sect; /* "real" sectors per track */ | |
445 | u8 bios_head; /* BIOS/fdisk/LILO number of heads */ | |
446 | u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ | |
447 | ||
448 | unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ | |
449 | unsigned int cyl; /* "real" number of cyls */ | |
26bcb879 | 450 | unsigned int drive_data; /* used by set_pio_mode/selectproc */ |
1da177e4 LT |
451 | unsigned int failures; /* current failure count */ |
452 | unsigned int max_failures; /* maximum allowed failure count */ | |
dbe217af | 453 | u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */ |
1da177e4 LT |
454 | |
455 | u64 capacity64; /* total number of sectors */ | |
456 | ||
457 | int lun; /* logical unit */ | |
458 | int crc_count; /* crc counter to reduce drive speed */ | |
e3a59b4d HR |
459 | #ifdef CONFIG_BLK_DEV_IDEACPI |
460 | struct ide_acpi_drive_link *acpidata; | |
461 | #endif | |
1da177e4 LT |
462 | struct list_head list; |
463 | struct device gendev; | |
f36d4024 | 464 | struct completion gendev_rel_comp; /* to deal with device release() */ |
d7c26ebb BP |
465 | |
466 | /* callback for packet commands */ | |
467 | void (*pc_callback)(struct ide_drive_s *); | |
3b8ac539 BP |
468 | |
469 | unsigned long atapi_flags; | |
d7c26ebb BP |
470 | }; |
471 | ||
472 | typedef struct ide_drive_s ide_drive_t; | |
1da177e4 | 473 | |
8604affd BZ |
474 | #define to_ide_device(dev)container_of(dev, ide_drive_t, gendev) |
475 | ||
374e042c | 476 | struct ide_task_s; |
039788e1 | 477 | struct ide_port_info; |
1da177e4 | 478 | |
374e042c BZ |
479 | struct ide_tp_ops { |
480 | void (*exec_command)(struct hwif_s *, u8); | |
481 | u8 (*read_status)(struct hwif_s *); | |
482 | u8 (*read_altstatus)(struct hwif_s *); | |
483 | u8 (*read_sff_dma_status)(struct hwif_s *); | |
484 | ||
485 | void (*set_irq)(struct hwif_s *, int); | |
486 | ||
487 | void (*tf_load)(ide_drive_t *, struct ide_task_s *); | |
488 | void (*tf_read)(ide_drive_t *, struct ide_task_s *); | |
489 | ||
490 | void (*input_data)(ide_drive_t *, struct request *, void *, | |
491 | unsigned int); | |
492 | void (*output_data)(ide_drive_t *, struct request *, void *, | |
493 | unsigned int); | |
494 | }; | |
495 | ||
496 | extern const struct ide_tp_ops default_tp_ops; | |
497 | ||
39b986a6 BZ |
498 | /** |
499 | * struct ide_port_ops - IDE port operations | |
500 | * | |
501 | * @init_dev: host specific initialization of a device | |
502 | * @set_pio_mode: routine to program host for PIO mode | |
503 | * @set_dma_mode: routine to program host for DMA mode | |
504 | * @selectproc: tweaks hardware to select drive | |
505 | * @reset_poll: chipset polling based on hba specifics | |
506 | * @pre_reset: chipset specific changes to default for device-hba resets | |
507 | * @resetproc: routine to reset controller after a disk reset | |
508 | * @maskproc: special host masking for drive selection | |
509 | * @quirkproc: check host's drive quirk list | |
510 | * | |
511 | * @mdma_filter: filter MDMA modes | |
512 | * @udma_filter: filter UDMA modes | |
513 | * | |
514 | * @cable_detect: detect cable type | |
515 | */ | |
ac95beed | 516 | struct ide_port_ops { |
e6d95bd1 | 517 | void (*init_dev)(ide_drive_t *); |
ac95beed | 518 | void (*set_pio_mode)(ide_drive_t *, const u8); |
ac95beed | 519 | void (*set_dma_mode)(ide_drive_t *, const u8); |
ac95beed | 520 | void (*selectproc)(ide_drive_t *); |
ac95beed | 521 | int (*reset_poll)(ide_drive_t *); |
ac95beed | 522 | void (*pre_reset)(ide_drive_t *); |
ac95beed | 523 | void (*resetproc)(ide_drive_t *); |
ac95beed | 524 | void (*maskproc)(ide_drive_t *, int); |
ac95beed BZ |
525 | void (*quirkproc)(ide_drive_t *); |
526 | ||
527 | u8 (*mdma_filter)(ide_drive_t *); | |
528 | u8 (*udma_filter)(ide_drive_t *); | |
529 | ||
530 | u8 (*cable_detect)(struct hwif_s *); | |
531 | }; | |
532 | ||
5e37bdc0 BZ |
533 | struct ide_dma_ops { |
534 | void (*dma_host_set)(struct ide_drive_s *, int); | |
535 | int (*dma_setup)(struct ide_drive_s *); | |
536 | void (*dma_exec_cmd)(struct ide_drive_s *, u8); | |
537 | void (*dma_start)(struct ide_drive_s *); | |
538 | int (*dma_end)(struct ide_drive_s *); | |
539 | int (*dma_test_irq)(struct ide_drive_s *); | |
540 | void (*dma_lost_irq)(struct ide_drive_s *); | |
541 | void (*dma_timeout)(struct ide_drive_s *); | |
542 | }; | |
543 | ||
08da591e BZ |
544 | struct ide_host; |
545 | ||
1da177e4 LT |
546 | typedef struct hwif_s { |
547 | struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ | |
548 | struct hwif_s *mate; /* other hwif from same PCI chip */ | |
549 | struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */ | |
550 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ | |
551 | ||
08da591e BZ |
552 | struct ide_host *host; |
553 | ||
1da177e4 LT |
554 | char name[6]; /* name of interface, eg. "ide0" */ |
555 | ||
4c3032d8 BZ |
556 | struct ide_io_ports io_ports; |
557 | ||
1da177e4 | 558 | unsigned long sata_scr[SATA_NR_PORTS]; |
1da177e4 | 559 | |
1da177e4 LT |
560 | ide_drive_t drives[MAX_DRIVES]; /* drive info */ |
561 | ||
562 | u8 major; /* our major number */ | |
563 | u8 index; /* 0 for ide0; 1 for ide1; ... */ | |
564 | u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ | |
1da177e4 LT |
565 | u8 bus_state; /* power state of the IDE bus */ |
566 | ||
e95d9c6b | 567 | u32 host_flags; |
6a824c92 | 568 | |
4099d143 BZ |
569 | u8 pio_mask; |
570 | ||
1da177e4 LT |
571 | u8 ultra_mask; |
572 | u8 mwdma_mask; | |
573 | u8 swdma_mask; | |
574 | ||
49521f97 BZ |
575 | u8 cbl; /* cable type */ |
576 | ||
1da177e4 LT |
577 | hwif_chipset_t chipset; /* sub-module for tuning.. */ |
578 | ||
36501650 BZ |
579 | struct device *dev; |
580 | ||
18e181fe BZ |
581 | ide_ack_intr_t *ack_intr; |
582 | ||
1da177e4 LT |
583 | void (*rw_disk)(ide_drive_t *, struct request *); |
584 | ||
374e042c | 585 | const struct ide_tp_ops *tp_ops; |
ac95beed | 586 | const struct ide_port_ops *port_ops; |
f37afdac | 587 | const struct ide_dma_ops *dma_ops; |
bfa14b42 | 588 | |
f0dd8712 | 589 | void (*ide_dma_clear_irq)(ide_drive_t *drive); |
1da177e4 | 590 | |
1da177e4 LT |
591 | /* dma physical region descriptor table (cpu view) */ |
592 | unsigned int *dmatable_cpu; | |
593 | /* dma physical region descriptor table (dma view) */ | |
594 | dma_addr_t dmatable_dma; | |
595 | /* Scatter-gather list used to build the above */ | |
596 | struct scatterlist *sg_table; | |
597 | int sg_max_nents; /* Maximum number of entries in it */ | |
598 | int sg_nents; /* Current number of entries in it */ | |
599 | int sg_dma_direction; /* dma transfer direction */ | |
600 | ||
601 | /* data phase of the active command (currently only valid for PIO/DMA) */ | |
602 | int data_phase; | |
603 | ||
604 | unsigned int nsect; | |
605 | unsigned int nleft; | |
55c16a70 | 606 | struct scatterlist *cursg; |
1da177e4 LT |
607 | unsigned int cursg_ofs; |
608 | ||
1da177e4 LT |
609 | int rqsize; /* max sectors per request */ |
610 | int irq; /* our irq number */ | |
611 | ||
1da177e4 | 612 | unsigned long dma_base; /* base addr for dma ports */ |
1da177e4 | 613 | |
1da177e4 LT |
614 | unsigned long config_data; /* for use by chipset-specific code */ |
615 | unsigned long select_data; /* for use by chipset-specific code */ | |
616 | ||
020e322d SS |
617 | unsigned long extra_base; /* extra addr for dma ports */ |
618 | unsigned extra_ports; /* number of extra dma ports */ | |
619 | ||
1da177e4 | 620 | unsigned present : 1; /* this interface exists */ |
1da177e4 LT |
621 | unsigned serialized : 1; /* serialized all channel operation */ |
622 | unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */ | |
1da177e4 LT |
623 | unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ |
624 | ||
f74c9141 BZ |
625 | struct device gendev; |
626 | struct device *portdev; | |
627 | ||
f36d4024 | 628 | struct completion gendev_rel_comp; /* To deal with device release() */ |
1da177e4 LT |
629 | |
630 | void *hwif_data; /* extra hwif data */ | |
631 | ||
632 | unsigned dma; | |
e3a59b4d HR |
633 | |
634 | #ifdef CONFIG_BLK_DEV_IDEACPI | |
635 | struct ide_acpi_hwif_link *acpidata; | |
636 | #endif | |
22fc6ecc | 637 | } ____cacheline_internodealigned_in_smp ide_hwif_t; |
1da177e4 | 638 | |
48c3c107 BZ |
639 | struct ide_host { |
640 | ide_hwif_t *ports[MAX_HWIFS]; | |
641 | unsigned int n_ports; | |
6cdf6eb3 | 642 | struct device *dev[2]; |
ef0b0427 | 643 | unsigned long host_flags; |
6cdf6eb3 | 644 | void *host_priv; |
48c3c107 BZ |
645 | }; |
646 | ||
1da177e4 LT |
647 | /* |
648 | * internal ide interrupt handler type | |
649 | */ | |
1da177e4 LT |
650 | typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); |
651 | typedef int (ide_expiry_t)(ide_drive_t *); | |
652 | ||
0eea6458 | 653 | /* used by ide-cd, ide-floppy, etc. */ |
9567b349 | 654 | typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned); |
0eea6458 | 655 | |
1da177e4 LT |
656 | typedef struct hwgroup_s { |
657 | /* irq handler, if active */ | |
658 | ide_startstop_t (*handler)(ide_drive_t *); | |
a6fbb1c8 | 659 | |
1da177e4 LT |
660 | /* BOOL: protects all fields below */ |
661 | volatile int busy; | |
662 | /* BOOL: wake us up on timer expiry */ | |
663 | unsigned int sleeping : 1; | |
664 | /* BOOL: polling active & poll_timeout field valid */ | |
665 | unsigned int polling : 1; | |
913759ac | 666 | |
1da177e4 LT |
667 | /* current drive */ |
668 | ide_drive_t *drive; | |
669 | /* ptr to current hwif in linked-list */ | |
670 | ide_hwif_t *hwif; | |
671 | ||
1da177e4 LT |
672 | /* current request */ |
673 | struct request *rq; | |
a6fbb1c8 | 674 | |
1da177e4 LT |
675 | /* failsafe timer */ |
676 | struct timer_list timer; | |
1da177e4 LT |
677 | /* timeout value during long polls */ |
678 | unsigned long poll_timeout; | |
679 | /* queried upon timeouts */ | |
680 | int (*expiry)(ide_drive_t *); | |
a6fbb1c8 | 681 | |
23450319 SS |
682 | int req_gen; |
683 | int req_gen_timer; | |
1da177e4 LT |
684 | } ide_hwgroup_t; |
685 | ||
7662d046 BZ |
686 | typedef struct ide_driver_s ide_driver_t; |
687 | ||
f9383c42 | 688 | extern struct mutex ide_setting_mtx; |
1da177e4 | 689 | |
7662d046 BZ |
690 | int set_io_32bit(ide_drive_t *, int); |
691 | int set_pio_mode(ide_drive_t *, int); | |
692 | int set_using_dma(ide_drive_t *, int); | |
693 | ||
eaec3e7d BP |
694 | /* ATAPI packet command flags */ |
695 | enum { | |
696 | /* set when an error is considered normal - no retry (ide-tape) */ | |
697 | PC_FLAG_ABORT = (1 << 0), | |
698 | PC_FLAG_SUPPRESS_ERROR = (1 << 1), | |
699 | PC_FLAG_WAIT_FOR_DSC = (1 << 2), | |
700 | PC_FLAG_DMA_OK = (1 << 3), | |
5e331095 BZ |
701 | PC_FLAG_DMA_IN_PROGRESS = (1 << 4), |
702 | PC_FLAG_DMA_ERROR = (1 << 5), | |
703 | PC_FLAG_WRITING = (1 << 6), | |
eaec3e7d | 704 | /* command timed out */ |
5e331095 | 705 | PC_FLAG_TIMEDOUT = (1 << 7), |
eaec3e7d BP |
706 | }; |
707 | ||
8303b46e BP |
708 | struct ide_atapi_pc { |
709 | /* actual packet bytes */ | |
710 | u8 c[12]; | |
711 | /* incremented on each retry */ | |
712 | int retries; | |
713 | int error; | |
714 | ||
715 | /* bytes to transfer */ | |
716 | int req_xfer; | |
717 | /* bytes actually transferred */ | |
718 | int xferred; | |
719 | ||
720 | /* data buffer */ | |
721 | u8 *buf; | |
722 | /* current buffer position */ | |
723 | u8 *cur_pos; | |
724 | int buf_size; | |
725 | /* missing/available data on the current buffer */ | |
726 | int b_count; | |
727 | ||
728 | /* the corresponding request */ | |
729 | struct request *rq; | |
730 | ||
731 | unsigned long flags; | |
732 | ||
733 | /* | |
734 | * those are more or less driver-specific and some of them are subject | |
735 | * to change/removal later. | |
736 | */ | |
737 | u8 pc_buf[256]; | |
1b06e92a | 738 | |
8303b46e BP |
739 | /* idetape only */ |
740 | struct idetape_bh *bh; | |
741 | char *b_data; | |
742 | ||
743 | /* idescsi only for now */ | |
744 | struct scatterlist *sg; | |
745 | unsigned int sg_cnt; | |
746 | ||
747 | struct scsi_cmnd *scsi_cmd; | |
748 | void (*done) (struct scsi_cmnd *); | |
749 | ||
750 | unsigned long timeout; | |
751 | }; | |
752 | ||
7662d046 | 753 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 LT |
754 | /* |
755 | * configurable drive settings | |
756 | */ | |
757 | ||
758 | #define TYPE_INT 0 | |
1497943e BZ |
759 | #define TYPE_BYTE 1 |
760 | #define TYPE_SHORT 2 | |
1da177e4 LT |
761 | |
762 | #define SETTING_READ (1 << 0) | |
763 | #define SETTING_WRITE (1 << 1) | |
764 | #define SETTING_RW (SETTING_READ | SETTING_WRITE) | |
765 | ||
766 | typedef int (ide_procset_t)(ide_drive_t *, int); | |
767 | typedef struct ide_settings_s { | |
768 | char *name; | |
769 | int rw; | |
1da177e4 LT |
770 | int data_type; |
771 | int min; | |
772 | int max; | |
773 | int mul_factor; | |
774 | int div_factor; | |
775 | void *data; | |
776 | ide_procset_t *set; | |
777 | int auto_remove; | |
778 | struct ide_settings_s *next; | |
779 | } ide_settings_t; | |
780 | ||
1497943e | 781 | int ide_add_setting(ide_drive_t *, const char *, int, int, int, int, int, int, void *, ide_procset_t *set); |
1da177e4 LT |
782 | |
783 | /* | |
784 | * /proc/ide interface | |
785 | */ | |
786 | typedef struct { | |
787 | const char *name; | |
788 | mode_t mode; | |
789 | read_proc_t *read_proc; | |
790 | write_proc_t *write_proc; | |
791 | } ide_proc_entry_t; | |
792 | ||
ecfd80e4 BZ |
793 | void proc_ide_create(void); |
794 | void proc_ide_destroy(void); | |
5cbf79cd | 795 | void ide_proc_register_port(ide_hwif_t *); |
d9270a3f | 796 | void ide_proc_port_register_devices(ide_hwif_t *); |
5b0c4b30 | 797 | void ide_proc_unregister_device(ide_drive_t *); |
5cbf79cd | 798 | void ide_proc_unregister_port(ide_hwif_t *); |
7662d046 BZ |
799 | void ide_proc_register_driver(ide_drive_t *, ide_driver_t *); |
800 | void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *); | |
801 | ||
802 | void ide_add_generic_settings(ide_drive_t *); | |
803 | ||
1da177e4 LT |
804 | read_proc_t proc_ide_read_capacity; |
805 | read_proc_t proc_ide_read_geometry; | |
806 | ||
1da177e4 LT |
807 | /* |
808 | * Standard exit stuff: | |
809 | */ | |
810 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) \ | |
811 | { \ | |
812 | len -= off; \ | |
813 | if (len < count) { \ | |
814 | *eof = 1; \ | |
815 | if (len <= 0) \ | |
816 | return 0; \ | |
817 | } else \ | |
818 | len = count; \ | |
819 | *start = page + off; \ | |
820 | return len; \ | |
821 | } | |
822 | #else | |
ecfd80e4 BZ |
823 | static inline void proc_ide_create(void) { ; } |
824 | static inline void proc_ide_destroy(void) { ; } | |
5cbf79cd | 825 | static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; } |
d9270a3f | 826 | static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; } |
5b0c4b30 | 827 | static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; } |
5cbf79cd | 828 | static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; } |
7662d046 BZ |
829 | static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } |
830 | static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } | |
831 | static inline void ide_add_generic_settings(ide_drive_t *drive) { ; } | |
1da177e4 LT |
832 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0; |
833 | #endif | |
834 | ||
835 | /* | |
836 | * Power Management step value (rq->pm->pm_step). | |
837 | * | |
838 | * The step value starts at 0 (ide_pm_state_start_suspend) for a | |
839 | * suspend operation or 1000 (ide_pm_state_start_resume) for a | |
840 | * resume operation. | |
841 | * | |
842 | * For each step, the core calls the subdriver start_power_step() first. | |
843 | * This can return: | |
844 | * - ide_stopped : In this case, the core calls us back again unless | |
845 | * step have been set to ide_power_state_completed. | |
846 | * - ide_started : In this case, the channel is left busy until an | |
847 | * async event (interrupt) occurs. | |
848 | * Typically, start_power_step() will issue a taskfile request with | |
849 | * do_rw_taskfile(). | |
850 | * | |
851 | * Upon reception of the interrupt, the core will call complete_power_step() | |
852 | * with the error code if any. This routine should update the step value | |
853 | * and return. It should not start a new request. The core will call | |
854 | * start_power_step for the new step value, unless step have been set to | |
855 | * ide_power_state_completed. | |
856 | * | |
857 | * Subdrivers are expected to define their own additional power | |
858 | * steps from 1..999 for suspend and from 1001..1999 for resume, | |
859 | * other values are reserved for future use. | |
860 | */ | |
861 | ||
862 | enum { | |
863 | ide_pm_state_completed = -1, | |
864 | ide_pm_state_start_suspend = 0, | |
865 | ide_pm_state_start_resume = 1000, | |
866 | }; | |
867 | ||
868 | /* | |
869 | * Subdrivers support. | |
4ef3b8f4 LR |
870 | * |
871 | * The gendriver.owner field should be set to the module owner of this driver. | |
872 | * The gendriver.name field should be set to the name of this driver | |
1da177e4 | 873 | */ |
7662d046 | 874 | struct ide_driver_s { |
1da177e4 LT |
875 | const char *version; |
876 | u8 media; | |
1da177e4 | 877 | unsigned supports_dsc_overlap : 1; |
1da177e4 LT |
878 | ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); |
879 | int (*end_request)(ide_drive_t *, int, int); | |
880 | ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8); | |
1da177e4 | 881 | struct device_driver gen_driver; |
4031bbe4 RK |
882 | int (*probe)(ide_drive_t *); |
883 | void (*remove)(ide_drive_t *); | |
0d2157f7 | 884 | void (*resume)(ide_drive_t *); |
4031bbe4 | 885 | void (*shutdown)(ide_drive_t *); |
7662d046 BZ |
886 | #ifdef CONFIG_IDE_PROC_FS |
887 | ide_proc_entry_t *proc; | |
888 | #endif | |
889 | }; | |
1da177e4 | 890 | |
4031bbe4 RK |
891 | #define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver) |
892 | ||
08da591e BZ |
893 | int ide_device_get(ide_drive_t *); |
894 | void ide_device_put(ide_drive_t *); | |
895 | ||
1da177e4 LT |
896 | int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long); |
897 | ||
ebae41a5 BZ |
898 | extern int ide_vlb_clk; |
899 | extern int ide_pci_clk; | |
900 | ||
1da177e4 | 901 | extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs); |
dbe217af AC |
902 | int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, |
903 | int uptodate, int nr_sectors); | |
1da177e4 | 904 | |
1da177e4 LT |
905 | extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry); |
906 | ||
cd2a2d96 BZ |
907 | void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int, |
908 | ide_expiry_t *); | |
1da177e4 | 909 | |
1fc14258 BZ |
910 | void ide_execute_pkt_cmd(ide_drive_t *); |
911 | ||
9f87abe8 BZ |
912 | void ide_pad_transfer(ide_drive_t *, int, int); |
913 | ||
1da177e4 LT |
914 | ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8); |
915 | ||
1da177e4 LT |
916 | ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat); |
917 | ||
4dde4492 | 918 | void ide_fix_driveid(u16 *); |
01745112 | 919 | |
1da177e4 LT |
920 | extern void ide_fixstring(u8 *, const int, const int); |
921 | ||
b163f46d BZ |
922 | int ide_busy_sleep(ide_hwif_t *, unsigned long, int); |
923 | ||
74af21cf | 924 | int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); |
1da177e4 | 925 | |
1da177e4 LT |
926 | extern ide_startstop_t ide_do_reset (ide_drive_t *); |
927 | ||
63f5abb0 | 928 | extern void ide_do_drive_cmd(ide_drive_t *, struct request *); |
1da177e4 | 929 | |
1da177e4 LT |
930 | extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); |
931 | ||
9e42237f BZ |
932 | enum { |
933 | IDE_TFLAG_LBA48 = (1 << 0), | |
74095a91 BZ |
934 | IDE_TFLAG_FLAGGED = (1 << 2), |
935 | IDE_TFLAG_OUT_DATA = (1 << 3), | |
936 | IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4), | |
937 | IDE_TFLAG_OUT_HOB_NSECT = (1 << 5), | |
938 | IDE_TFLAG_OUT_HOB_LBAL = (1 << 6), | |
939 | IDE_TFLAG_OUT_HOB_LBAM = (1 << 7), | |
940 | IDE_TFLAG_OUT_HOB_LBAH = (1 << 8), | |
941 | IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE | | |
942 | IDE_TFLAG_OUT_HOB_NSECT | | |
943 | IDE_TFLAG_OUT_HOB_LBAL | | |
944 | IDE_TFLAG_OUT_HOB_LBAM | | |
945 | IDE_TFLAG_OUT_HOB_LBAH, | |
946 | IDE_TFLAG_OUT_FEATURE = (1 << 9), | |
947 | IDE_TFLAG_OUT_NSECT = (1 << 10), | |
948 | IDE_TFLAG_OUT_LBAL = (1 << 11), | |
949 | IDE_TFLAG_OUT_LBAM = (1 << 12), | |
950 | IDE_TFLAG_OUT_LBAH = (1 << 13), | |
951 | IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE | | |
952 | IDE_TFLAG_OUT_NSECT | | |
953 | IDE_TFLAG_OUT_LBAL | | |
954 | IDE_TFLAG_OUT_LBAM | | |
955 | IDE_TFLAG_OUT_LBAH, | |
807e35d6 | 956 | IDE_TFLAG_OUT_DEVICE = (1 << 14), |
ac026ff2 | 957 | IDE_TFLAG_WRITE = (1 << 15), |
866e2ec9 BZ |
958 | IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16), |
959 | IDE_TFLAG_IN_DATA = (1 << 17), | |
57d7366b | 960 | IDE_TFLAG_CUSTOM_HANDLER = (1 << 18), |
f6e29e35 | 961 | IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19), |
c2b57cdc BZ |
962 | IDE_TFLAG_IN_HOB_FEATURE = (1 << 20), |
963 | IDE_TFLAG_IN_HOB_NSECT = (1 << 21), | |
964 | IDE_TFLAG_IN_HOB_LBAL = (1 << 22), | |
965 | IDE_TFLAG_IN_HOB_LBAM = (1 << 23), | |
966 | IDE_TFLAG_IN_HOB_LBAH = (1 << 24), | |
967 | IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL | | |
968 | IDE_TFLAG_IN_HOB_LBAM | | |
969 | IDE_TFLAG_IN_HOB_LBAH, | |
970 | IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | | |
971 | IDE_TFLAG_IN_HOB_NSECT | | |
972 | IDE_TFLAG_IN_HOB_LBA, | |
92eb4380 | 973 | IDE_TFLAG_IN_FEATURE = (1 << 1), |
c2b57cdc BZ |
974 | IDE_TFLAG_IN_NSECT = (1 << 25), |
975 | IDE_TFLAG_IN_LBAL = (1 << 26), | |
976 | IDE_TFLAG_IN_LBAM = (1 << 27), | |
977 | IDE_TFLAG_IN_LBAH = (1 << 28), | |
978 | IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL | | |
979 | IDE_TFLAG_IN_LBAM | | |
980 | IDE_TFLAG_IN_LBAH, | |
981 | IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | | |
982 | IDE_TFLAG_IN_LBA, | |
983 | IDE_TFLAG_IN_DEVICE = (1 << 29), | |
657cc1a8 BZ |
984 | IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | |
985 | IDE_TFLAG_IN_HOB, | |
986 | IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | | |
987 | IDE_TFLAG_IN_TF, | |
988 | IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | | |
989 | IDE_TFLAG_IN_DEVICE, | |
35cf2b94 TH |
990 | /* force 16-bit I/O operations */ |
991 | IDE_TFLAG_IO_16BIT = (1 << 30), | |
395d8ef5 BZ |
992 | /* ide_task_t was allocated using kmalloc() */ |
993 | IDE_TFLAG_DYN = (1 << 31), | |
9e42237f BZ |
994 | }; |
995 | ||
650d841d BZ |
996 | struct ide_taskfile { |
997 | u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */ | |
998 | ||
999 | u8 hob_feature; /* 1-5: additional data to support LBA48 */ | |
1000 | u8 hob_nsect; | |
1001 | u8 hob_lbal; | |
1002 | u8 hob_lbam; | |
1003 | u8 hob_lbah; | |
1004 | ||
1005 | u8 data; /* 6: low data byte (for TASKFILE IOCTL) */ | |
1006 | ||
1007 | union { /* 7: */ | |
1008 | u8 error; /* read: error */ | |
1009 | u8 feature; /* write: feature */ | |
1010 | }; | |
1011 | ||
1012 | u8 nsect; /* 8: number of sectors */ | |
1013 | u8 lbal; /* 9: LBA low */ | |
1014 | u8 lbam; /* 10: LBA mid */ | |
1015 | u8 lbah; /* 11: LBA high */ | |
1016 | ||
1017 | u8 device; /* 12: device select */ | |
1018 | ||
1019 | union { /* 13: */ | |
1020 | u8 status; /* read: status */ | |
1021 | u8 command; /* write: command */ | |
1022 | }; | |
1023 | }; | |
1024 | ||
1da177e4 | 1025 | typedef struct ide_task_s { |
650d841d BZ |
1026 | union { |
1027 | struct ide_taskfile tf; | |
1028 | u8 tf_array[14]; | |
1029 | }; | |
866e2ec9 | 1030 | u32 tf_flags; |
1da177e4 | 1031 | int data_phase; |
1da177e4 LT |
1032 | struct request *rq; /* copy of request */ |
1033 | void *special; /* valid_t generally */ | |
1034 | } ide_task_t; | |
1035 | ||
089c5c7e | 1036 | void ide_tf_dump(const char *, struct ide_taskfile *); |
1da177e4 | 1037 | |
374e042c BZ |
1038 | void ide_exec_command(ide_hwif_t *, u8); |
1039 | u8 ide_read_status(ide_hwif_t *); | |
1040 | u8 ide_read_altstatus(ide_hwif_t *); | |
1041 | u8 ide_read_sff_dma_status(ide_hwif_t *); | |
1042 | ||
1043 | void ide_set_irq(ide_hwif_t *, int); | |
1044 | ||
1045 | void ide_tf_load(ide_drive_t *, ide_task_t *); | |
1046 | void ide_tf_read(ide_drive_t *, ide_task_t *); | |
1047 | ||
1048 | void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int); | |
1049 | void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int); | |
1050 | ||
1da177e4 | 1051 | extern void SELECT_DRIVE(ide_drive_t *); |
ed4af48f | 1052 | void SELECT_MASK(ide_drive_t *, int); |
1da177e4 | 1053 | |
92eb4380 | 1054 | u8 ide_read_error(ide_drive_t *); |
1823649b | 1055 | void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); |
92eb4380 | 1056 | |
1da177e4 | 1057 | extern int drive_is_ready(ide_drive_t *); |
1da177e4 | 1058 | |
2fc57388 BZ |
1059 | void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); |
1060 | ||
646c0cb6 BZ |
1061 | ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, |
1062 | ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, | |
1063 | void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), | |
1064 | void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *), | |
1065 | void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned int, | |
1066 | int)); | |
594c16d8 BZ |
1067 | ide_startstop_t ide_transfer_pc(ide_drive_t *, struct ide_atapi_pc *, |
1068 | ide_handler_t *, unsigned int, ide_expiry_t *); | |
6bf1641c BZ |
1069 | ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_atapi_pc *, |
1070 | ide_handler_t *, unsigned int, ide_expiry_t *); | |
594c16d8 | 1071 | |
f6e29e35 | 1072 | ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); |
1da177e4 | 1073 | |
4d7a984b TH |
1074 | void task_end_request(ide_drive_t *, struct request *, u8); |
1075 | ||
ac026ff2 | 1076 | int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16); |
9a3c49be BZ |
1077 | int ide_no_data_taskfile(ide_drive_t *, ide_task_t *); |
1078 | ||
1da177e4 LT |
1079 | int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long); |
1080 | int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long); | |
1081 | int ide_task_ioctl(ide_drive_t *, unsigned int, unsigned long); | |
1082 | ||
1da177e4 | 1083 | extern int ide_driveid_update(ide_drive_t *); |
1da177e4 LT |
1084 | extern int ide_config_drive_speed(ide_drive_t *, u8); |
1085 | extern u8 eighty_ninty_three (ide_drive_t *); | |
1da177e4 LT |
1086 | extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); |
1087 | ||
1088 | extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); | |
1089 | ||
1da177e4 LT |
1090 | extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); |
1091 | ||
1092 | extern int ide_spin_wait_hwgroup(ide_drive_t *); | |
1093 | extern void ide_timer_expiry(unsigned long); | |
7d12e780 | 1094 | extern irqreturn_t ide_intr(int irq, void *dev_id); |
165125e1 | 1095 | extern void do_ide_request(struct request_queue *); |
1da177e4 LT |
1096 | |
1097 | void ide_init_disk(struct gendisk *, ide_drive_t *); | |
1098 | ||
6d208b39 | 1099 | #ifdef CONFIG_IDEPCI_PCIBUS_ORDER |
725522b5 GKH |
1100 | extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); |
1101 | #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME) | |
6d208b39 BZ |
1102 | #else |
1103 | #define ide_pci_register_driver(d) pci_register_driver(d) | |
1104 | #endif | |
1105 | ||
c97c6aca | 1106 | void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, |
48c3c107 | 1107 | hw_regs_t *, hw_regs_t **); |
85620436 | 1108 | void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); |
1da177e4 | 1109 | |
8e882ba1 | 1110 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
b123f56e BZ |
1111 | int ide_pci_set_master(struct pci_dev *, const char *); |
1112 | unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); | |
ebb00fb5 | 1113 | int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *); |
b123f56e | 1114 | int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); |
c413b9b9 | 1115 | #else |
b123f56e BZ |
1116 | static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, |
1117 | const struct ide_port_info *d) | |
1118 | { | |
1119 | return -EINVAL; | |
1120 | } | |
c413b9b9 BZ |
1121 | #endif |
1122 | ||
1da177e4 LT |
1123 | typedef struct ide_pci_enablebit_s { |
1124 | u8 reg; /* byte pci reg holding the enable-bit */ | |
1125 | u8 mask; /* mask to isolate the enable-bit */ | |
1126 | u8 val; /* value of masked reg when "enabled" */ | |
1127 | } ide_pci_enablebit_t; | |
1128 | ||
1129 | enum { | |
1130 | /* Uses ISA control ports not PCI ones. */ | |
a5d8c5c8 | 1131 | IDE_HFLAG_ISA_PORTS = (1 << 0), |
6a824c92 | 1132 | /* single port device */ |
a5d8c5c8 | 1133 | IDE_HFLAG_SINGLE = (1 << 1), |
6a824c92 BZ |
1134 | /* don't use legacy PIO blacklist */ |
1135 | IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2), | |
e277f91f BZ |
1136 | /* set for the second port of QD65xx */ |
1137 | IDE_HFLAG_QD_2ND_PORT = (1 << 3), | |
26bcb879 BZ |
1138 | /* use PIO8/9 for prefetch off/on */ |
1139 | IDE_HFLAG_ABUSE_PREFETCH = (1 << 4), | |
1140 | /* use PIO6/7 for fast-devsel off/on */ | |
1141 | IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5), | |
1142 | /* use 100-102 and 200-202 PIO values to set DMA modes */ | |
1143 | IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6), | |
aedea591 BZ |
1144 | /* |
1145 | * keep DMA setting when programming PIO mode, may be used only | |
1146 | * for hosts which have separate PIO and DMA timings (ie. PMAC) | |
1147 | */ | |
1148 | IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7), | |
88b2b32b BZ |
1149 | /* program host for the transfer mode after programming device */ |
1150 | IDE_HFLAG_POST_SET_MODE = (1 << 8), | |
1151 | /* don't program host/device for the transfer mode ("smart" hosts) */ | |
1152 | IDE_HFLAG_NO_SET_MODE = (1 << 9), | |
0ae2e178 BZ |
1153 | /* trust BIOS for programming chipset/device for DMA */ |
1154 | IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10), | |
cafa027b BZ |
1155 | /* host is CS5510/CS5520 */ |
1156 | IDE_HFLAG_CS5520 = (1 << 11), | |
33c1002e BZ |
1157 | /* ATAPI DMA is unsupported */ |
1158 | IDE_HFLAG_NO_ATAPI_DMA = (1 << 12), | |
5e71d9c5 BZ |
1159 | /* set if host is a "non-bootable" controller */ |
1160 | IDE_HFLAG_NON_BOOTABLE = (1 << 13), | |
47b68788 BZ |
1161 | /* host doesn't support DMA */ |
1162 | IDE_HFLAG_NO_DMA = (1 << 14), | |
1163 | /* check if host is PCI IDE device before allowing DMA */ | |
1164 | IDE_HFLAG_NO_AUTODMA = (1 << 15), | |
c5dd43ec BZ |
1165 | /* host uses MMIO */ |
1166 | IDE_HFLAG_MMIO = (1 << 16), | |
238e4f14 BZ |
1167 | /* no LBA48 */ |
1168 | IDE_HFLAG_NO_LBA48 = (1 << 17), | |
1169 | /* no LBA48 DMA */ | |
1170 | IDE_HFLAG_NO_LBA48_DMA = (1 << 18), | |
ed67b923 BZ |
1171 | /* data FIFO is cleared by an error */ |
1172 | IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19), | |
1c51361a BZ |
1173 | /* serialize ports */ |
1174 | IDE_HFLAG_SERIALIZE = (1 << 20), | |
3985ee3b BZ |
1175 | /* use legacy IRQs */ |
1176 | IDE_HFLAG_LEGACY_IRQS = (1 << 21), | |
8acf28c0 BZ |
1177 | /* force use of legacy IRQs */ |
1178 | IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22), | |
272a3709 BZ |
1179 | /* limit LBA48 requests to 256 sectors */ |
1180 | IDE_HFLAG_RQSIZE_256 = (1 << 23), | |
caea7602 BZ |
1181 | /* use 32-bit I/O ops */ |
1182 | IDE_HFLAG_IO_32BIT = (1 << 24), | |
1183 | /* unmask IRQs */ | |
1184 | IDE_HFLAG_UNMASK_IRQS = (1 << 25), | |
1fd18905 BZ |
1185 | /* serialize ports if DMA is possible (for sl82c105) */ |
1186 | IDE_HFLAG_SERIALIZE_DMA = (1 << 27), | |
8ac2b42a BZ |
1187 | /* force host out of "simplex" mode */ |
1188 | IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28), | |
4166c199 BZ |
1189 | /* DSC overlap is unsupported */ |
1190 | IDE_HFLAG_NO_DSC = (1 << 29), | |
807b90d0 BZ |
1191 | /* never use 32-bit I/O ops */ |
1192 | IDE_HFLAG_NO_IO_32BIT = (1 << 30), | |
1193 | /* never unmask IRQs */ | |
1194 | IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31), | |
1da177e4 LT |
1195 | }; |
1196 | ||
7cab14a7 | 1197 | #ifdef CONFIG_BLK_DEV_OFFBOARD |
7cab14a7 | 1198 | # define IDE_HFLAG_OFF_BOARD 0 |
5e71d9c5 BZ |
1199 | #else |
1200 | # define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE | |
7cab14a7 BZ |
1201 | #endif |
1202 | ||
039788e1 | 1203 | struct ide_port_info { |
1da177e4 | 1204 | char *name; |
a326b02b | 1205 | unsigned int (*init_chipset)(struct pci_dev *); |
1da177e4 LT |
1206 | void (*init_iops)(ide_hwif_t *); |
1207 | void (*init_hwif)(ide_hwif_t *); | |
b123f56e BZ |
1208 | int (*init_dma)(ide_hwif_t *, |
1209 | const struct ide_port_info *); | |
ac95beed | 1210 | |
374e042c | 1211 | const struct ide_tp_ops *tp_ops; |
ac95beed | 1212 | const struct ide_port_ops *port_ops; |
f37afdac | 1213 | const struct ide_dma_ops *dma_ops; |
ac95beed | 1214 | |
1da177e4 | 1215 | ide_pci_enablebit_t enablebits[2]; |
528a572d | 1216 | hwif_chipset_t chipset; |
9ffcf364 | 1217 | u32 host_flags; |
4099d143 | 1218 | u8 pio_mask; |
5f8b6c34 BZ |
1219 | u8 swdma_mask; |
1220 | u8 mwdma_mask; | |
18137207 | 1221 | u8 udma_mask; |
039788e1 | 1222 | }; |
1da177e4 | 1223 | |
6cdf6eb3 BZ |
1224 | int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *); |
1225 | int ide_pci_init_two(struct pci_dev *, struct pci_dev *, | |
1226 | const struct ide_port_info *, void *); | |
ef0b0427 | 1227 | void ide_pci_remove(struct pci_dev *); |
1da177e4 LT |
1228 | |
1229 | void ide_map_sg(ide_drive_t *, struct request *); | |
1230 | void ide_init_sg_cmd(ide_drive_t *, struct request *); | |
1231 | ||
1232 | #define BAD_DMA_DRIVE 0 | |
1233 | #define GOOD_DMA_DRIVE 1 | |
1234 | ||
65e5f2e3 JC |
1235 | struct drive_list_entry { |
1236 | const char *id_model; | |
1237 | const char *id_firmware; | |
1238 | }; | |
1239 | ||
4dde4492 | 1240 | int ide_in_drive_list(u16 *, const struct drive_list_entry *); |
a5b7e70d BZ |
1241 | |
1242 | #ifdef CONFIG_BLK_DEV_IDEDMA | |
1da177e4 | 1243 | int __ide_dma_bad_drive(ide_drive_t *); |
3ab7efe8 | 1244 | int ide_id_dma_bug(ide_drive_t *); |
7670df73 BZ |
1245 | |
1246 | u8 ide_find_dma_mode(ide_drive_t *, u8); | |
1247 | ||
1248 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) | |
1249 | { | |
1250 | return ide_find_dma_mode(drive, XFER_UDMA_6); | |
1251 | } | |
1252 | ||
4a546e04 | 1253 | void ide_dma_off_quietly(ide_drive_t *); |
7469aaf6 | 1254 | void ide_dma_off(ide_drive_t *); |
4a546e04 | 1255 | void ide_dma_on(ide_drive_t *); |
3608b5d7 | 1256 | int ide_set_dma(ide_drive_t *); |
578cfa0d | 1257 | void ide_check_dma_crc(ide_drive_t *); |
1da177e4 LT |
1258 | ide_startstop_t ide_dma_intr(ide_drive_t *); |
1259 | ||
062f9f02 BZ |
1260 | int ide_build_sglist(ide_drive_t *, struct request *); |
1261 | void ide_destroy_dmatable(ide_drive_t *); | |
1262 | ||
8e882ba1 | 1263 | #ifdef CONFIG_BLK_DEV_IDEDMA_SFF |
1da177e4 | 1264 | extern int ide_build_dmatable(ide_drive_t *, struct request *); |
b8e73fba BZ |
1265 | int ide_allocate_dma_engine(ide_hwif_t *); |
1266 | void ide_release_dma_engine(ide_hwif_t *); | |
1da177e4 | 1267 | |
15ce926a | 1268 | void ide_dma_host_set(ide_drive_t *, int); |
1da177e4 | 1269 | extern int ide_dma_setup(ide_drive_t *); |
f37afdac | 1270 | void ide_dma_exec_cmd(ide_drive_t *, u8); |
1da177e4 LT |
1271 | extern void ide_dma_start(ide_drive_t *); |
1272 | extern int __ide_dma_end(ide_drive_t *); | |
f37afdac | 1273 | int ide_dma_test_irq(ide_drive_t *); |
841d2a9b | 1274 | extern void ide_dma_lost_irq(ide_drive_t *); |
c283f5db | 1275 | extern void ide_dma_timeout(ide_drive_t *); |
71fc9fcc | 1276 | extern const struct ide_dma_ops sff_dma_ops; |
8e882ba1 | 1277 | #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */ |
1da177e4 LT |
1278 | |
1279 | #else | |
3ab7efe8 | 1280 | static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; } |
7670df73 | 1281 | static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } |
2d5eaa6d | 1282 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } |
4a546e04 | 1283 | static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; } |
7469aaf6 | 1284 | static inline void ide_dma_off(ide_drive_t *drive) { ; } |
4a546e04 | 1285 | static inline void ide_dma_on(ide_drive_t *drive) { ; } |
1da177e4 | 1286 | static inline void ide_dma_verbose(ide_drive_t *drive) { ; } |
3608b5d7 | 1287 | static inline int ide_set_dma(ide_drive_t *drive) { return 1; } |
578cfa0d | 1288 | static inline void ide_check_dma_crc(ide_drive_t *drive) { ; } |
1da177e4 LT |
1289 | #endif /* CONFIG_BLK_DEV_IDEDMA */ |
1290 | ||
8e882ba1 | 1291 | #ifndef CONFIG_BLK_DEV_IDEDMA_SFF |
0d1bad21 | 1292 | static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; } |
1da177e4 LT |
1293 | #endif |
1294 | ||
e3a59b4d HR |
1295 | #ifdef CONFIG_BLK_DEV_IDEACPI |
1296 | extern int ide_acpi_exec_tfs(ide_drive_t *drive); | |
1297 | extern void ide_acpi_get_timing(ide_hwif_t *hwif); | |
1298 | extern void ide_acpi_push_timing(ide_hwif_t *hwif); | |
1299 | extern void ide_acpi_init(ide_hwif_t *hwif); | |
eafd88a3 | 1300 | void ide_acpi_port_init_devices(ide_hwif_t *); |
5e32132b | 1301 | extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); |
e3a59b4d HR |
1302 | #else |
1303 | static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } | |
1304 | static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } | |
1305 | static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } | |
1306 | static inline void ide_acpi_init(ide_hwif_t *hwif) { ; } | |
eafd88a3 | 1307 | static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; } |
5e32132b | 1308 | static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {} |
e3a59b4d HR |
1309 | #endif |
1310 | ||
fbd13088 | 1311 | void ide_remove_port_from_hwgroup(ide_hwif_t *); |
387750c3 | 1312 | void ide_unregister(ide_hwif_t *); |
1da177e4 LT |
1313 | |
1314 | void ide_register_region(struct gendisk *); | |
1315 | void ide_unregister_region(struct gendisk *); | |
1316 | ||
f01393e4 | 1317 | void ide_undecoded_slave(ide_drive_t *); |
1da177e4 | 1318 | |
9fd91d95 BZ |
1319 | void ide_port_apply_params(ide_hwif_t *); |
1320 | ||
48c3c107 BZ |
1321 | struct ide_host *ide_host_alloc_all(const struct ide_port_info *, hw_regs_t **); |
1322 | struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); | |
8a69580e | 1323 | void ide_host_free(struct ide_host *); |
48c3c107 BZ |
1324 | int ide_host_register(struct ide_host *, const struct ide_port_info *, |
1325 | hw_regs_t **); | |
6f904d01 BZ |
1326 | int ide_host_add(const struct ide_port_info *, hw_regs_t **, |
1327 | struct ide_host **); | |
48c3c107 | 1328 | void ide_host_remove(struct ide_host *); |
0bfeee7d | 1329 | int ide_legacy_device_add(const struct ide_port_info *, unsigned long); |
2dde7861 BZ |
1330 | void ide_port_unregister_devices(ide_hwif_t *); |
1331 | void ide_port_scan(ide_hwif_t *); | |
1da177e4 LT |
1332 | |
1333 | static inline void *ide_get_hwifdata (ide_hwif_t * hwif) | |
1334 | { | |
1335 | return hwif->hwif_data; | |
1336 | } | |
1337 | ||
1338 | static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) | |
1339 | { | |
1340 | hwif->hwif_data = data; | |
1341 | } | |
1342 | ||
3ab7efe8 | 1343 | const char *ide_xfer_verbose(u8 mode); |
1da177e4 LT |
1344 | extern void ide_toggle_bounce(ide_drive_t *drive, int on); |
1345 | extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate); | |
1346 | ||
4dde4492 | 1347 | static inline int ide_dev_has_iordy(u16 *id) |
2229833c | 1348 | { |
48fb2688 | 1349 | return ((id[ATA_ID_FIELD_VALID] & 2) && ata_id_has_iordy(id)) ? 1 : 0; |
2229833c BZ |
1350 | } |
1351 | ||
4dde4492 | 1352 | static inline int ide_dev_is_sata(u16 *id) |
6c3c22f3 SS |
1353 | { |
1354 | /* | |
1355 | * See if word 93 is 0 AND drive is at least ATA-5 compatible | |
1356 | * verifying that word 80 by casting it to a signed type -- | |
1357 | * this trick allows us to filter out the reserved values of | |
1358 | * 0x0000 and 0xffff along with the earlier ATA revisions... | |
1359 | */ | |
4dde4492 | 1360 | if (id[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020) |
6c3c22f3 SS |
1361 | return 1; |
1362 | return 0; | |
1363 | } | |
1364 | ||
a501633c | 1365 | u64 ide_get_lba_addr(struct ide_taskfile *, int); |
1da177e4 LT |
1366 | u8 ide_dump_status(ide_drive_t *, const char *, u8); |
1367 | ||
3be53f3f BZ |
1368 | struct ide_timing { |
1369 | u8 mode; | |
1370 | u8 setup; /* t1 */ | |
1371 | u16 act8b; /* t2 for 8-bit io */ | |
1372 | u16 rec8b; /* t2i for 8-bit io */ | |
1373 | u16 cyc8b; /* t0 for 8-bit io */ | |
1374 | u16 active; /* t2 or tD */ | |
1375 | u16 recover; /* t2i or tK */ | |
1376 | u16 cycle; /* t0 */ | |
1377 | u16 udma; /* t2CYCTYP/2 */ | |
1378 | }; | |
1379 | ||
1380 | enum { | |
1381 | IDE_TIMING_SETUP = (1 << 0), | |
1382 | IDE_TIMING_ACT8B = (1 << 1), | |
1383 | IDE_TIMING_REC8B = (1 << 2), | |
1384 | IDE_TIMING_CYC8B = (1 << 3), | |
1385 | IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B | | |
1386 | IDE_TIMING_CYC8B, | |
1387 | IDE_TIMING_ACTIVE = (1 << 4), | |
1388 | IDE_TIMING_RECOVER = (1 << 5), | |
1389 | IDE_TIMING_CYCLE = (1 << 6), | |
1390 | IDE_TIMING_UDMA = (1 << 7), | |
1391 | IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT | | |
1392 | IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER | | |
1393 | IDE_TIMING_CYCLE | IDE_TIMING_UDMA, | |
1394 | }; | |
1395 | ||
f06ab340 | 1396 | struct ide_timing *ide_timing_find_mode(u8); |
c9d6c1a2 | 1397 | u16 ide_pio_cycle_time(ide_drive_t *, u8); |
f06ab340 BZ |
1398 | void ide_timing_merge(struct ide_timing *, struct ide_timing *, |
1399 | struct ide_timing *, unsigned int); | |
1400 | int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int); | |
1401 | ||
9ad54093 BZ |
1402 | int ide_scan_pio_blacklist(char *); |
1403 | ||
2134758d | 1404 | u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8); |
1da177e4 | 1405 | |
88b2b32b BZ |
1406 | int ide_set_pio_mode(ide_drive_t *, u8); |
1407 | int ide_set_dma_mode(ide_drive_t *, u8); | |
1408 | ||
26bcb879 BZ |
1409 | void ide_set_pio(ide_drive_t *, u8); |
1410 | ||
1411 | static inline void ide_set_max_pio(ide_drive_t *drive) | |
1412 | { | |
1413 | ide_set_pio(drive, 255); | |
1414 | } | |
1da177e4 LT |
1415 | |
1416 | extern spinlock_t ide_lock; | |
ef29888e | 1417 | extern struct mutex ide_cfg_mtx; |
1da177e4 LT |
1418 | /* |
1419 | * Structure locking: | |
1420 | * | |
ef29888e | 1421 | * ide_cfg_mtx and ide_lock together protect changes to |
1da177e4 LT |
1422 | * ide_hwif_t->{next,hwgroup} |
1423 | * ide_drive_t->next | |
1424 | * | |
1425 | * ide_hwgroup_t->busy: ide_lock | |
1426 | * ide_hwgroup_t->hwif: ide_lock | |
1427 | * ide_hwif_t->mate: constant, no locking | |
1428 | * ide_drive_t->hwif: constant, no locking | |
1429 | */ | |
1430 | ||
366c7f55 | 1431 | #define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0) |
1da177e4 LT |
1432 | |
1433 | extern struct bus_type ide_bus_type; | |
f74c9141 | 1434 | extern struct class *ide_port_class; |
1da177e4 LT |
1435 | |
1436 | /* check if CACHE FLUSH (EXT) command is supported (bits defined in ATA-6) */ | |
4dde4492 | 1437 | #define ide_id_has_flush_cache(id) ((id)[ATA_ID_CFS_ENABLE_2] & 0x3000) |
1da177e4 LT |
1438 | |
1439 | /* some Maxtor disks have bit 13 defined incorrectly so check bit 10 too */ | |
1440 | #define ide_id_has_flush_cache_ext(id) \ | |
4dde4492 | 1441 | (((id)[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400) |
1da177e4 | 1442 | |
7b9f25b5 BZ |
1443 | static inline void ide_dump_identify(u8 *id) |
1444 | { | |
1445 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); | |
1446 | } | |
1447 | ||
86b37860 CL |
1448 | static inline int hwif_to_node(ide_hwif_t *hwif) |
1449 | { | |
96f80219 | 1450 | return hwif->dev ? dev_to_node(hwif->dev) : -1; |
86b37860 CL |
1451 | } |
1452 | ||
7e59ea21 | 1453 | static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) |
1b678347 | 1454 | { |
7e59ea21 | 1455 | ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1]; |
1b678347 | 1456 | |
7e59ea21 | 1457 | return peer->present ? peer : NULL; |
1b678347 | 1458 | } |
1da177e4 | 1459 | #endif /* _IDE_H */ |