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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> |
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 | |
151a6701 | 129 | |
1da177e4 LT |
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 | ||
8185d5aa | 307 | struct ide_devset; |
1da177e4 | 308 | struct ide_driver_s; |
1da177e4 | 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 | 386 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
8185d5aa | 387 | const struct ide_devset **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 | ||
1da177e4 LT |
399 | u8 retry_pio; /* retrying dma capable host in pio */ |
400 | u8 state; /* retry state */ | |
401 | u8 waiting_for_dma; /* dma currently in progress */ | |
1da177e4 | 402 | |
8185d5aa BZ |
403 | unsigned keep_settings : 1; /* restore settings after drive reset */ |
404 | unsigned using_dma : 1; /* disk is using dma for read/write */ | |
405 | unsigned unmask : 1; /* okay to unmask other irqs */ | |
406 | unsigned noflush : 1; /* don't attempt flushes */ | |
407 | unsigned dsc_overlap : 1; /* DSC overlap */ | |
408 | unsigned nice1 : 1; /* give potential excess bandwidth */ | |
1da177e4 LT |
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 */ | |
1da177e4 | 418 | unsigned doorlocking : 1; /* for removable only: door lock/unlock works */ |
c223701c | 419 | unsigned nodma : 1; /* disallow DMA */ |
1da177e4 | 420 | unsigned blocked : 1; /* 1=powermanagment told us not to do anything, so sleep nicely */ |
1da177e4 LT |
421 | unsigned scsi : 1; /* 0=default, 1=ide-scsi emulation */ |
422 | unsigned sleeping : 1; /* 1=sleeping & sleep field valid */ | |
423 | unsigned post_reset : 1; | |
7f8f48af | 424 | unsigned udma33_warned : 1; |
8185d5aa BZ |
425 | unsigned addressing : 2; /* 0=28-bit, 1=48-bit, 2=48-bit doing 28-bit */ |
426 | unsigned wcache : 1; /* status of write cache */ | |
427 | unsigned nowerr : 1; /* used for ignoring ATA_DF */ | |
1da177e4 LT |
428 | |
429 | u8 quirk_list; /* considered quirky, set for a specific host */ | |
430 | u8 init_speed; /* transfer rate set at boot */ | |
1da177e4 | 431 | u8 current_speed; /* current transfer rate set */ |
513daadd | 432 | u8 desired_speed; /* desired transfer rate set */ |
1da177e4 | 433 | u8 dn; /* now wide spread use */ |
1da177e4 LT |
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 | 441 | u8 bad_wstat; /* used for ignoring ATA_DF */ |
1da177e4 LT |
442 | u8 head; /* "real" number of heads */ |
443 | u8 sect; /* "real" sectors per track */ | |
444 | u8 bios_head; /* BIOS/fdisk/LILO number of heads */ | |
445 | u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ | |
446 | ||
447 | unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ | |
448 | unsigned int cyl; /* "real" number of cyls */ | |
26bcb879 | 449 | unsigned int drive_data; /* used by set_pio_mode/selectproc */ |
1da177e4 LT |
450 | unsigned int failures; /* current failure count */ |
451 | unsigned int max_failures; /* maximum allowed failure count */ | |
dbe217af | 452 | u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */ |
1da177e4 LT |
453 | |
454 | u64 capacity64; /* total number of sectors */ | |
455 | ||
456 | int lun; /* logical unit */ | |
457 | int crc_count; /* crc counter to reduce drive speed */ | |
e3a59b4d HR |
458 | #ifdef CONFIG_BLK_DEV_IDEACPI |
459 | struct ide_acpi_drive_link *acpidata; | |
460 | #endif | |
1da177e4 LT |
461 | struct list_head list; |
462 | struct device gendev; | |
f36d4024 | 463 | struct completion gendev_rel_comp; /* to deal with device release() */ |
d7c26ebb BP |
464 | |
465 | /* callback for packet commands */ | |
466 | void (*pc_callback)(struct ide_drive_s *); | |
3b8ac539 BP |
467 | |
468 | unsigned long atapi_flags; | |
d7c26ebb BP |
469 | }; |
470 | ||
471 | typedef struct ide_drive_s ide_drive_t; | |
1da177e4 | 472 | |
8604affd BZ |
473 | #define to_ide_device(dev)container_of(dev, ide_drive_t, gendev) |
474 | ||
374e042c | 475 | struct ide_task_s; |
039788e1 | 476 | struct ide_port_info; |
1da177e4 | 477 | |
374e042c BZ |
478 | struct ide_tp_ops { |
479 | void (*exec_command)(struct hwif_s *, u8); | |
480 | u8 (*read_status)(struct hwif_s *); | |
481 | u8 (*read_altstatus)(struct hwif_s *); | |
482 | u8 (*read_sff_dma_status)(struct hwif_s *); | |
483 | ||
484 | void (*set_irq)(struct hwif_s *, int); | |
485 | ||
486 | void (*tf_load)(ide_drive_t *, struct ide_task_s *); | |
487 | void (*tf_read)(ide_drive_t *, struct ide_task_s *); | |
488 | ||
489 | void (*input_data)(ide_drive_t *, struct request *, void *, | |
490 | unsigned int); | |
491 | void (*output_data)(ide_drive_t *, struct request *, void *, | |
492 | unsigned int); | |
493 | }; | |
494 | ||
495 | extern const struct ide_tp_ops default_tp_ops; | |
496 | ||
39b986a6 BZ |
497 | /** |
498 | * struct ide_port_ops - IDE port operations | |
499 | * | |
500 | * @init_dev: host specific initialization of a device | |
501 | * @set_pio_mode: routine to program host for PIO mode | |
502 | * @set_dma_mode: routine to program host for DMA mode | |
503 | * @selectproc: tweaks hardware to select drive | |
504 | * @reset_poll: chipset polling based on hba specifics | |
505 | * @pre_reset: chipset specific changes to default for device-hba resets | |
506 | * @resetproc: routine to reset controller after a disk reset | |
507 | * @maskproc: special host masking for drive selection | |
508 | * @quirkproc: check host's drive quirk list | |
509 | * | |
510 | * @mdma_filter: filter MDMA modes | |
511 | * @udma_filter: filter UDMA modes | |
512 | * | |
513 | * @cable_detect: detect cable type | |
514 | */ | |
ac95beed | 515 | struct ide_port_ops { |
e6d95bd1 | 516 | void (*init_dev)(ide_drive_t *); |
ac95beed | 517 | void (*set_pio_mode)(ide_drive_t *, const u8); |
ac95beed | 518 | void (*set_dma_mode)(ide_drive_t *, const u8); |
ac95beed | 519 | void (*selectproc)(ide_drive_t *); |
ac95beed | 520 | int (*reset_poll)(ide_drive_t *); |
ac95beed | 521 | void (*pre_reset)(ide_drive_t *); |
ac95beed | 522 | void (*resetproc)(ide_drive_t *); |
ac95beed | 523 | void (*maskproc)(ide_drive_t *, int); |
ac95beed BZ |
524 | void (*quirkproc)(ide_drive_t *); |
525 | ||
526 | u8 (*mdma_filter)(ide_drive_t *); | |
527 | u8 (*udma_filter)(ide_drive_t *); | |
528 | ||
529 | u8 (*cable_detect)(struct hwif_s *); | |
530 | }; | |
531 | ||
5e37bdc0 BZ |
532 | struct ide_dma_ops { |
533 | void (*dma_host_set)(struct ide_drive_s *, int); | |
534 | int (*dma_setup)(struct ide_drive_s *); | |
535 | void (*dma_exec_cmd)(struct ide_drive_s *, u8); | |
536 | void (*dma_start)(struct ide_drive_s *); | |
537 | int (*dma_end)(struct ide_drive_s *); | |
538 | int (*dma_test_irq)(struct ide_drive_s *); | |
539 | void (*dma_lost_irq)(struct ide_drive_s *); | |
540 | void (*dma_timeout)(struct ide_drive_s *); | |
541 | }; | |
542 | ||
08da591e BZ |
543 | struct ide_host; |
544 | ||
1da177e4 LT |
545 | typedef struct hwif_s { |
546 | struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ | |
547 | struct hwif_s *mate; /* other hwif from same PCI chip */ | |
548 | struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */ | |
549 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ | |
550 | ||
08da591e BZ |
551 | struct ide_host *host; |
552 | ||
1da177e4 LT |
553 | char name[6]; /* name of interface, eg. "ide0" */ |
554 | ||
4c3032d8 BZ |
555 | struct ide_io_ports io_ports; |
556 | ||
1da177e4 | 557 | unsigned long sata_scr[SATA_NR_PORTS]; |
1da177e4 | 558 | |
1da177e4 LT |
559 | ide_drive_t drives[MAX_DRIVES]; /* drive info */ |
560 | ||
561 | u8 major; /* our major number */ | |
562 | u8 index; /* 0 for ide0; 1 for ide1; ... */ | |
563 | u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ | |
1da177e4 LT |
564 | u8 bus_state; /* power state of the IDE bus */ |
565 | ||
e95d9c6b | 566 | u32 host_flags; |
6a824c92 | 567 | |
4099d143 BZ |
568 | u8 pio_mask; |
569 | ||
1da177e4 LT |
570 | u8 ultra_mask; |
571 | u8 mwdma_mask; | |
572 | u8 swdma_mask; | |
573 | ||
49521f97 BZ |
574 | u8 cbl; /* cable type */ |
575 | ||
1da177e4 LT |
576 | hwif_chipset_t chipset; /* sub-module for tuning.. */ |
577 | ||
36501650 BZ |
578 | struct device *dev; |
579 | ||
18e181fe BZ |
580 | ide_ack_intr_t *ack_intr; |
581 | ||
1da177e4 LT |
582 | void (*rw_disk)(ide_drive_t *, struct request *); |
583 | ||
374e042c | 584 | const struct ide_tp_ops *tp_ops; |
ac95beed | 585 | const struct ide_port_ops *port_ops; |
f37afdac | 586 | const struct ide_dma_ops *dma_ops; |
bfa14b42 | 587 | |
f0dd8712 | 588 | void (*ide_dma_clear_irq)(ide_drive_t *drive); |
1da177e4 | 589 | |
1da177e4 LT |
590 | /* dma physical region descriptor table (cpu view) */ |
591 | unsigned int *dmatable_cpu; | |
592 | /* dma physical region descriptor table (dma view) */ | |
593 | dma_addr_t dmatable_dma; | |
594 | /* Scatter-gather list used to build the above */ | |
595 | struct scatterlist *sg_table; | |
596 | int sg_max_nents; /* Maximum number of entries in it */ | |
597 | int sg_nents; /* Current number of entries in it */ | |
598 | int sg_dma_direction; /* dma transfer direction */ | |
599 | ||
600 | /* data phase of the active command (currently only valid for PIO/DMA) */ | |
601 | int data_phase; | |
602 | ||
603 | unsigned int nsect; | |
604 | unsigned int nleft; | |
55c16a70 | 605 | struct scatterlist *cursg; |
1da177e4 LT |
606 | unsigned int cursg_ofs; |
607 | ||
1da177e4 LT |
608 | int rqsize; /* max sectors per request */ |
609 | int irq; /* our irq number */ | |
610 | ||
1da177e4 | 611 | unsigned long dma_base; /* base addr for dma ports */ |
1da177e4 | 612 | |
1da177e4 LT |
613 | unsigned long config_data; /* for use by chipset-specific code */ |
614 | unsigned long select_data; /* for use by chipset-specific code */ | |
615 | ||
020e322d SS |
616 | unsigned long extra_base; /* extra addr for dma ports */ |
617 | unsigned extra_ports; /* number of extra dma ports */ | |
618 | ||
1da177e4 | 619 | unsigned present : 1; /* this interface exists */ |
1da177e4 LT |
620 | unsigned serialized : 1; /* serialized all channel operation */ |
621 | unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */ | |
1da177e4 LT |
622 | unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ |
623 | ||
f74c9141 BZ |
624 | struct device gendev; |
625 | struct device *portdev; | |
626 | ||
f36d4024 | 627 | struct completion gendev_rel_comp; /* To deal with device release() */ |
1da177e4 LT |
628 | |
629 | void *hwif_data; /* extra hwif data */ | |
630 | ||
631 | unsigned dma; | |
e3a59b4d HR |
632 | |
633 | #ifdef CONFIG_BLK_DEV_IDEACPI | |
634 | struct ide_acpi_hwif_link *acpidata; | |
635 | #endif | |
22fc6ecc | 636 | } ____cacheline_internodealigned_in_smp ide_hwif_t; |
1da177e4 | 637 | |
48c3c107 BZ |
638 | struct ide_host { |
639 | ide_hwif_t *ports[MAX_HWIFS]; | |
640 | unsigned int n_ports; | |
6cdf6eb3 | 641 | struct device *dev[2]; |
ef0b0427 | 642 | unsigned long host_flags; |
6cdf6eb3 | 643 | void *host_priv; |
48c3c107 BZ |
644 | }; |
645 | ||
1da177e4 LT |
646 | /* |
647 | * internal ide interrupt handler type | |
648 | */ | |
1da177e4 LT |
649 | typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); |
650 | typedef int (ide_expiry_t)(ide_drive_t *); | |
651 | ||
0eea6458 | 652 | /* used by ide-cd, ide-floppy, etc. */ |
9567b349 | 653 | typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned); |
0eea6458 | 654 | |
1da177e4 LT |
655 | typedef struct hwgroup_s { |
656 | /* irq handler, if active */ | |
657 | ide_startstop_t (*handler)(ide_drive_t *); | |
a6fbb1c8 | 658 | |
1da177e4 LT |
659 | /* BOOL: protects all fields below */ |
660 | volatile int busy; | |
661 | /* BOOL: wake us up on timer expiry */ | |
662 | unsigned int sleeping : 1; | |
663 | /* BOOL: polling active & poll_timeout field valid */ | |
664 | unsigned int polling : 1; | |
913759ac | 665 | |
1da177e4 LT |
666 | /* current drive */ |
667 | ide_drive_t *drive; | |
668 | /* ptr to current hwif in linked-list */ | |
669 | ide_hwif_t *hwif; | |
670 | ||
1da177e4 LT |
671 | /* current request */ |
672 | struct request *rq; | |
a6fbb1c8 | 673 | |
1da177e4 LT |
674 | /* failsafe timer */ |
675 | struct timer_list timer; | |
1da177e4 LT |
676 | /* timeout value during long polls */ |
677 | unsigned long poll_timeout; | |
678 | /* queried upon timeouts */ | |
679 | int (*expiry)(ide_drive_t *); | |
a6fbb1c8 | 680 | |
23450319 SS |
681 | int req_gen; |
682 | int req_gen_timer; | |
1da177e4 LT |
683 | } ide_hwgroup_t; |
684 | ||
7662d046 BZ |
685 | typedef struct ide_driver_s ide_driver_t; |
686 | ||
f9383c42 | 687 | extern struct mutex ide_setting_mtx; |
1da177e4 | 688 | |
8185d5aa | 689 | int get_io_32bit(ide_drive_t *); |
7662d046 | 690 | int set_io_32bit(ide_drive_t *, int); |
8185d5aa | 691 | int get_ksettings(ide_drive_t *); |
263138a0 | 692 | int set_ksettings(ide_drive_t *, int); |
7662d046 | 693 | int set_pio_mode(ide_drive_t *, int); |
8185d5aa | 694 | int get_unmaskirq(ide_drive_t *); |
263138a0 | 695 | int set_unmaskirq(ide_drive_t *, int); |
8185d5aa | 696 | int get_using_dma(ide_drive_t *); |
7662d046 BZ |
697 | int set_using_dma(ide_drive_t *, int); |
698 | ||
8185d5aa BZ |
699 | #define ide_devset_get(name, field) \ |
700 | int get_##name(ide_drive_t *drive) \ | |
701 | { \ | |
702 | return drive->field; \ | |
703 | } | |
704 | ||
705 | #define ide_devset_set(name, field) \ | |
706 | int set_##name(ide_drive_t *drive, int arg) \ | |
707 | { \ | |
708 | drive->field = arg; \ | |
709 | return 0; \ | |
710 | } | |
711 | ||
eaec3e7d BP |
712 | /* ATAPI packet command flags */ |
713 | enum { | |
714 | /* set when an error is considered normal - no retry (ide-tape) */ | |
715 | PC_FLAG_ABORT = (1 << 0), | |
716 | PC_FLAG_SUPPRESS_ERROR = (1 << 1), | |
717 | PC_FLAG_WAIT_FOR_DSC = (1 << 2), | |
718 | PC_FLAG_DMA_OK = (1 << 3), | |
5e331095 BZ |
719 | PC_FLAG_DMA_IN_PROGRESS = (1 << 4), |
720 | PC_FLAG_DMA_ERROR = (1 << 5), | |
721 | PC_FLAG_WRITING = (1 << 6), | |
eaec3e7d | 722 | /* command timed out */ |
5e331095 | 723 | PC_FLAG_TIMEDOUT = (1 << 7), |
eaec3e7d BP |
724 | }; |
725 | ||
8303b46e BP |
726 | struct ide_atapi_pc { |
727 | /* actual packet bytes */ | |
728 | u8 c[12]; | |
729 | /* incremented on each retry */ | |
730 | int retries; | |
731 | int error; | |
732 | ||
733 | /* bytes to transfer */ | |
734 | int req_xfer; | |
735 | /* bytes actually transferred */ | |
736 | int xferred; | |
737 | ||
738 | /* data buffer */ | |
739 | u8 *buf; | |
740 | /* current buffer position */ | |
741 | u8 *cur_pos; | |
742 | int buf_size; | |
743 | /* missing/available data on the current buffer */ | |
744 | int b_count; | |
745 | ||
746 | /* the corresponding request */ | |
747 | struct request *rq; | |
748 | ||
749 | unsigned long flags; | |
750 | ||
751 | /* | |
752 | * those are more or less driver-specific and some of them are subject | |
753 | * to change/removal later. | |
754 | */ | |
755 | u8 pc_buf[256]; | |
1b06e92a | 756 | |
8303b46e BP |
757 | /* idetape only */ |
758 | struct idetape_bh *bh; | |
759 | char *b_data; | |
760 | ||
761 | /* idescsi only for now */ | |
762 | struct scatterlist *sg; | |
763 | unsigned int sg_cnt; | |
764 | ||
765 | struct scsi_cmnd *scsi_cmd; | |
766 | void (*done) (struct scsi_cmnd *); | |
767 | ||
768 | unsigned long timeout; | |
769 | }; | |
770 | ||
7662d046 | 771 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 LT |
772 | /* |
773 | * configurable drive settings | |
774 | */ | |
775 | ||
8185d5aa BZ |
776 | #define S_READ (1 << 0) |
777 | #define S_WRITE (1 << 1) | |
778 | #define S_RW (S_READ | S_WRITE) | |
779 | #define S_NOLOCK (1 << 2) | |
780 | ||
781 | struct ide_devset { | |
782 | const char *name; | |
783 | unsigned int flags; | |
784 | int min, max; | |
785 | int (*get)(ide_drive_t *); | |
786 | int (*set)(ide_drive_t *, int); | |
787 | int (*mulf)(ide_drive_t *); | |
788 | int (*divf)(ide_drive_t *); | |
789 | }; | |
790 | ||
791 | #define __DEVSET(_name, _flags, _min, _max, _get, _set, _mulf, _divf) { \ | |
792 | .name = __stringify(_name), \ | |
793 | .flags = _flags, \ | |
794 | .min = _min, \ | |
795 | .max = _max, \ | |
796 | .get = _get, \ | |
797 | .set = _set, \ | |
798 | .mulf = _mulf, \ | |
799 | .divf = _divf, \ | |
800 | } | |
801 | ||
802 | #define __IDE_DEVSET(_name, _flags, _min, _max, _get, _set, _mulf, _divf) \ | |
803 | static const struct ide_devset ide_devset_##_name = \ | |
804 | __DEVSET(_name, _flags, _min, _max, _get, _set, _mulf, _divf) | |
805 | ||
806 | #define IDE_DEVSET(_name, _flags, _min, _max, _get, _set) \ | |
807 | __IDE_DEVSET(_name, _flags, _min, _max, _get, _set, NULL, NULL) | |
808 | ||
809 | #define ide_devset_rw_nolock(_name, _min, _max, _func) \ | |
810 | IDE_DEVSET(_name, S_RW | S_NOLOCK, _min, _max, get_##_func, set_##_func) | |
811 | ||
812 | #define ide_devset_w_nolock(_name, _min, _max, _func) \ | |
813 | IDE_DEVSET(_name, S_WRITE | S_NOLOCK, _min, _max, NULL, set_##_func) | |
814 | ||
815 | #define ide_devset_rw(_name, _min, _max, _field) \ | |
816 | static ide_devset_get(_name, _field); \ | |
817 | static ide_devset_set(_name, _field); \ | |
818 | IDE_DEVSET(_name, S_RW, _min, _max, get_##_name, set_##_name) | |
819 | ||
820 | #define ide_devset_r(_name, _min, _max, _field) \ | |
821 | ide_devset_get(_name, _field) \ | |
822 | IDE_DEVSET(_name, S_READ, _min, _max, get_##_name, NULL) | |
1da177e4 LT |
823 | |
824 | /* | |
825 | * /proc/ide interface | |
826 | */ | |
827 | typedef struct { | |
828 | const char *name; | |
829 | mode_t mode; | |
830 | read_proc_t *read_proc; | |
831 | write_proc_t *write_proc; | |
832 | } ide_proc_entry_t; | |
833 | ||
ecfd80e4 BZ |
834 | void proc_ide_create(void); |
835 | void proc_ide_destroy(void); | |
5cbf79cd | 836 | void ide_proc_register_port(ide_hwif_t *); |
d9270a3f | 837 | void ide_proc_port_register_devices(ide_hwif_t *); |
5b0c4b30 | 838 | void ide_proc_unregister_device(ide_drive_t *); |
5cbf79cd | 839 | void ide_proc_unregister_port(ide_hwif_t *); |
7662d046 BZ |
840 | void ide_proc_register_driver(ide_drive_t *, ide_driver_t *); |
841 | void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *); | |
842 | ||
1da177e4 LT |
843 | read_proc_t proc_ide_read_capacity; |
844 | read_proc_t proc_ide_read_geometry; | |
845 | ||
1da177e4 LT |
846 | /* |
847 | * Standard exit stuff: | |
848 | */ | |
849 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) \ | |
850 | { \ | |
851 | len -= off; \ | |
852 | if (len < count) { \ | |
853 | *eof = 1; \ | |
854 | if (len <= 0) \ | |
855 | return 0; \ | |
856 | } else \ | |
857 | len = count; \ | |
858 | *start = page + off; \ | |
859 | return len; \ | |
860 | } | |
861 | #else | |
ecfd80e4 BZ |
862 | static inline void proc_ide_create(void) { ; } |
863 | static inline void proc_ide_destroy(void) { ; } | |
5cbf79cd | 864 | static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; } |
d9270a3f | 865 | static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; } |
5b0c4b30 | 866 | static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; } |
5cbf79cd | 867 | static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; } |
7662d046 BZ |
868 | static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } |
869 | static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } | |
1da177e4 LT |
870 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0; |
871 | #endif | |
872 | ||
873 | /* | |
874 | * Power Management step value (rq->pm->pm_step). | |
875 | * | |
876 | * The step value starts at 0 (ide_pm_state_start_suspend) for a | |
877 | * suspend operation or 1000 (ide_pm_state_start_resume) for a | |
878 | * resume operation. | |
879 | * | |
880 | * For each step, the core calls the subdriver start_power_step() first. | |
881 | * This can return: | |
882 | * - ide_stopped : In this case, the core calls us back again unless | |
883 | * step have been set to ide_power_state_completed. | |
884 | * - ide_started : In this case, the channel is left busy until an | |
885 | * async event (interrupt) occurs. | |
886 | * Typically, start_power_step() will issue a taskfile request with | |
887 | * do_rw_taskfile(). | |
888 | * | |
889 | * Upon reception of the interrupt, the core will call complete_power_step() | |
890 | * with the error code if any. This routine should update the step value | |
891 | * and return. It should not start a new request. The core will call | |
892 | * start_power_step for the new step value, unless step have been set to | |
893 | * ide_power_state_completed. | |
894 | * | |
895 | * Subdrivers are expected to define their own additional power | |
896 | * steps from 1..999 for suspend and from 1001..1999 for resume, | |
897 | * other values are reserved for future use. | |
898 | */ | |
899 | ||
900 | enum { | |
901 | ide_pm_state_completed = -1, | |
902 | ide_pm_state_start_suspend = 0, | |
903 | ide_pm_state_start_resume = 1000, | |
904 | }; | |
905 | ||
906 | /* | |
907 | * Subdrivers support. | |
4ef3b8f4 LR |
908 | * |
909 | * The gendriver.owner field should be set to the module owner of this driver. | |
910 | * The gendriver.name field should be set to the name of this driver | |
1da177e4 | 911 | */ |
7662d046 | 912 | struct ide_driver_s { |
1da177e4 LT |
913 | const char *version; |
914 | u8 media; | |
1da177e4 LT |
915 | ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); |
916 | int (*end_request)(ide_drive_t *, int, int); | |
917 | ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8); | |
1da177e4 | 918 | struct device_driver gen_driver; |
4031bbe4 RK |
919 | int (*probe)(ide_drive_t *); |
920 | void (*remove)(ide_drive_t *); | |
0d2157f7 | 921 | void (*resume)(ide_drive_t *); |
4031bbe4 | 922 | void (*shutdown)(ide_drive_t *); |
7662d046 BZ |
923 | #ifdef CONFIG_IDE_PROC_FS |
924 | ide_proc_entry_t *proc; | |
8185d5aa | 925 | const struct ide_devset **settings; |
7662d046 BZ |
926 | #endif |
927 | }; | |
1da177e4 | 928 | |
4031bbe4 RK |
929 | #define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver) |
930 | ||
08da591e BZ |
931 | int ide_device_get(ide_drive_t *); |
932 | void ide_device_put(ide_drive_t *); | |
933 | ||
1da177e4 LT |
934 | int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long); |
935 | ||
ebae41a5 BZ |
936 | extern int ide_vlb_clk; |
937 | extern int ide_pci_clk; | |
938 | ||
1da177e4 | 939 | extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs); |
dbe217af AC |
940 | int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, |
941 | int uptodate, int nr_sectors); | |
1da177e4 | 942 | |
1da177e4 LT |
943 | extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry); |
944 | ||
cd2a2d96 BZ |
945 | void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int, |
946 | ide_expiry_t *); | |
1da177e4 | 947 | |
1fc14258 BZ |
948 | void ide_execute_pkt_cmd(ide_drive_t *); |
949 | ||
9f87abe8 BZ |
950 | void ide_pad_transfer(ide_drive_t *, int, int); |
951 | ||
1da177e4 LT |
952 | ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8); |
953 | ||
1da177e4 LT |
954 | ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat); |
955 | ||
4dde4492 | 956 | void ide_fix_driveid(u16 *); |
01745112 | 957 | |
1da177e4 LT |
958 | extern void ide_fixstring(u8 *, const int, const int); |
959 | ||
b163f46d BZ |
960 | int ide_busy_sleep(ide_hwif_t *, unsigned long, int); |
961 | ||
74af21cf | 962 | int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); |
1da177e4 | 963 | |
1da177e4 LT |
964 | extern ide_startstop_t ide_do_reset (ide_drive_t *); |
965 | ||
63f5abb0 | 966 | extern void ide_do_drive_cmd(ide_drive_t *, struct request *); |
1da177e4 | 967 | |
1da177e4 LT |
968 | extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); |
969 | ||
9e42237f BZ |
970 | enum { |
971 | IDE_TFLAG_LBA48 = (1 << 0), | |
74095a91 BZ |
972 | IDE_TFLAG_FLAGGED = (1 << 2), |
973 | IDE_TFLAG_OUT_DATA = (1 << 3), | |
974 | IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4), | |
975 | IDE_TFLAG_OUT_HOB_NSECT = (1 << 5), | |
976 | IDE_TFLAG_OUT_HOB_LBAL = (1 << 6), | |
977 | IDE_TFLAG_OUT_HOB_LBAM = (1 << 7), | |
978 | IDE_TFLAG_OUT_HOB_LBAH = (1 << 8), | |
979 | IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE | | |
980 | IDE_TFLAG_OUT_HOB_NSECT | | |
981 | IDE_TFLAG_OUT_HOB_LBAL | | |
982 | IDE_TFLAG_OUT_HOB_LBAM | | |
983 | IDE_TFLAG_OUT_HOB_LBAH, | |
984 | IDE_TFLAG_OUT_FEATURE = (1 << 9), | |
985 | IDE_TFLAG_OUT_NSECT = (1 << 10), | |
986 | IDE_TFLAG_OUT_LBAL = (1 << 11), | |
987 | IDE_TFLAG_OUT_LBAM = (1 << 12), | |
988 | IDE_TFLAG_OUT_LBAH = (1 << 13), | |
989 | IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE | | |
990 | IDE_TFLAG_OUT_NSECT | | |
991 | IDE_TFLAG_OUT_LBAL | | |
992 | IDE_TFLAG_OUT_LBAM | | |
993 | IDE_TFLAG_OUT_LBAH, | |
807e35d6 | 994 | IDE_TFLAG_OUT_DEVICE = (1 << 14), |
ac026ff2 | 995 | IDE_TFLAG_WRITE = (1 << 15), |
866e2ec9 BZ |
996 | IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16), |
997 | IDE_TFLAG_IN_DATA = (1 << 17), | |
57d7366b | 998 | IDE_TFLAG_CUSTOM_HANDLER = (1 << 18), |
f6e29e35 | 999 | IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19), |
c2b57cdc BZ |
1000 | IDE_TFLAG_IN_HOB_FEATURE = (1 << 20), |
1001 | IDE_TFLAG_IN_HOB_NSECT = (1 << 21), | |
1002 | IDE_TFLAG_IN_HOB_LBAL = (1 << 22), | |
1003 | IDE_TFLAG_IN_HOB_LBAM = (1 << 23), | |
1004 | IDE_TFLAG_IN_HOB_LBAH = (1 << 24), | |
1005 | IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL | | |
1006 | IDE_TFLAG_IN_HOB_LBAM | | |
1007 | IDE_TFLAG_IN_HOB_LBAH, | |
1008 | IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | | |
1009 | IDE_TFLAG_IN_HOB_NSECT | | |
1010 | IDE_TFLAG_IN_HOB_LBA, | |
92eb4380 | 1011 | IDE_TFLAG_IN_FEATURE = (1 << 1), |
c2b57cdc BZ |
1012 | IDE_TFLAG_IN_NSECT = (1 << 25), |
1013 | IDE_TFLAG_IN_LBAL = (1 << 26), | |
1014 | IDE_TFLAG_IN_LBAM = (1 << 27), | |
1015 | IDE_TFLAG_IN_LBAH = (1 << 28), | |
1016 | IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL | | |
1017 | IDE_TFLAG_IN_LBAM | | |
1018 | IDE_TFLAG_IN_LBAH, | |
1019 | IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | | |
1020 | IDE_TFLAG_IN_LBA, | |
1021 | IDE_TFLAG_IN_DEVICE = (1 << 29), | |
657cc1a8 BZ |
1022 | IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | |
1023 | IDE_TFLAG_IN_HOB, | |
1024 | IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | | |
1025 | IDE_TFLAG_IN_TF, | |
1026 | IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | | |
1027 | IDE_TFLAG_IN_DEVICE, | |
35cf2b94 TH |
1028 | /* force 16-bit I/O operations */ |
1029 | IDE_TFLAG_IO_16BIT = (1 << 30), | |
395d8ef5 BZ |
1030 | /* ide_task_t was allocated using kmalloc() */ |
1031 | IDE_TFLAG_DYN = (1 << 31), | |
9e42237f BZ |
1032 | }; |
1033 | ||
650d841d BZ |
1034 | struct ide_taskfile { |
1035 | u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */ | |
1036 | ||
1037 | u8 hob_feature; /* 1-5: additional data to support LBA48 */ | |
1038 | u8 hob_nsect; | |
1039 | u8 hob_lbal; | |
1040 | u8 hob_lbam; | |
1041 | u8 hob_lbah; | |
1042 | ||
1043 | u8 data; /* 6: low data byte (for TASKFILE IOCTL) */ | |
1044 | ||
1045 | union { /* 7: */ | |
1046 | u8 error; /* read: error */ | |
1047 | u8 feature; /* write: feature */ | |
1048 | }; | |
1049 | ||
1050 | u8 nsect; /* 8: number of sectors */ | |
1051 | u8 lbal; /* 9: LBA low */ | |
1052 | u8 lbam; /* 10: LBA mid */ | |
1053 | u8 lbah; /* 11: LBA high */ | |
1054 | ||
1055 | u8 device; /* 12: device select */ | |
1056 | ||
1057 | union { /* 13: */ | |
1058 | u8 status; /* read: status */ | |
1059 | u8 command; /* write: command */ | |
1060 | }; | |
1061 | }; | |
1062 | ||
1da177e4 | 1063 | typedef struct ide_task_s { |
650d841d BZ |
1064 | union { |
1065 | struct ide_taskfile tf; | |
1066 | u8 tf_array[14]; | |
1067 | }; | |
866e2ec9 | 1068 | u32 tf_flags; |
1da177e4 | 1069 | int data_phase; |
1da177e4 LT |
1070 | struct request *rq; /* copy of request */ |
1071 | void *special; /* valid_t generally */ | |
1072 | } ide_task_t; | |
1073 | ||
089c5c7e | 1074 | void ide_tf_dump(const char *, struct ide_taskfile *); |
1da177e4 | 1075 | |
374e042c BZ |
1076 | void ide_exec_command(ide_hwif_t *, u8); |
1077 | u8 ide_read_status(ide_hwif_t *); | |
1078 | u8 ide_read_altstatus(ide_hwif_t *); | |
1079 | u8 ide_read_sff_dma_status(ide_hwif_t *); | |
1080 | ||
1081 | void ide_set_irq(ide_hwif_t *, int); | |
1082 | ||
1083 | void ide_tf_load(ide_drive_t *, ide_task_t *); | |
1084 | void ide_tf_read(ide_drive_t *, ide_task_t *); | |
1085 | ||
1086 | void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int); | |
1087 | void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int); | |
1088 | ||
1da177e4 | 1089 | extern void SELECT_DRIVE(ide_drive_t *); |
ed4af48f | 1090 | void SELECT_MASK(ide_drive_t *, int); |
1da177e4 | 1091 | |
92eb4380 | 1092 | u8 ide_read_error(ide_drive_t *); |
1823649b | 1093 | void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); |
92eb4380 | 1094 | |
1da177e4 | 1095 | extern int drive_is_ready(ide_drive_t *); |
1da177e4 | 1096 | |
2fc57388 BZ |
1097 | void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); |
1098 | ||
646c0cb6 BZ |
1099 | ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, |
1100 | ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, | |
1101 | void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), | |
1102 | void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *), | |
1103 | void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned int, | |
1104 | int)); | |
594c16d8 BZ |
1105 | ide_startstop_t ide_transfer_pc(ide_drive_t *, struct ide_atapi_pc *, |
1106 | ide_handler_t *, unsigned int, ide_expiry_t *); | |
6bf1641c BZ |
1107 | ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_atapi_pc *, |
1108 | ide_handler_t *, unsigned int, ide_expiry_t *); | |
594c16d8 | 1109 | |
f6e29e35 | 1110 | ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); |
1da177e4 | 1111 | |
4d7a984b TH |
1112 | void task_end_request(ide_drive_t *, struct request *, u8); |
1113 | ||
ac026ff2 | 1114 | int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16); |
9a3c49be BZ |
1115 | int ide_no_data_taskfile(ide_drive_t *, ide_task_t *); |
1116 | ||
1da177e4 LT |
1117 | int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long); |
1118 | int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long); | |
1119 | int ide_task_ioctl(ide_drive_t *, unsigned int, unsigned long); | |
1120 | ||
1da177e4 | 1121 | extern int ide_driveid_update(ide_drive_t *); |
1da177e4 LT |
1122 | extern int ide_config_drive_speed(ide_drive_t *, u8); |
1123 | extern u8 eighty_ninty_three (ide_drive_t *); | |
1da177e4 LT |
1124 | extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); |
1125 | ||
1126 | extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); | |
1127 | ||
1da177e4 LT |
1128 | extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); |
1129 | ||
1130 | extern int ide_spin_wait_hwgroup(ide_drive_t *); | |
1131 | extern void ide_timer_expiry(unsigned long); | |
7d12e780 | 1132 | extern irqreturn_t ide_intr(int irq, void *dev_id); |
165125e1 | 1133 | extern void do_ide_request(struct request_queue *); |
1da177e4 LT |
1134 | |
1135 | void ide_init_disk(struct gendisk *, ide_drive_t *); | |
1136 | ||
6d208b39 | 1137 | #ifdef CONFIG_IDEPCI_PCIBUS_ORDER |
725522b5 GKH |
1138 | extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); |
1139 | #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME) | |
6d208b39 BZ |
1140 | #else |
1141 | #define ide_pci_register_driver(d) pci_register_driver(d) | |
1142 | #endif | |
1143 | ||
c97c6aca | 1144 | void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, |
48c3c107 | 1145 | hw_regs_t *, hw_regs_t **); |
85620436 | 1146 | void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); |
1da177e4 | 1147 | |
8e882ba1 | 1148 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
b123f56e BZ |
1149 | int ide_pci_set_master(struct pci_dev *, const char *); |
1150 | unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); | |
ebb00fb5 | 1151 | int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *); |
b123f56e | 1152 | int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); |
c413b9b9 | 1153 | #else |
b123f56e BZ |
1154 | static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, |
1155 | const struct ide_port_info *d) | |
1156 | { | |
1157 | return -EINVAL; | |
1158 | } | |
c413b9b9 BZ |
1159 | #endif |
1160 | ||
1da177e4 LT |
1161 | typedef struct ide_pci_enablebit_s { |
1162 | u8 reg; /* byte pci reg holding the enable-bit */ | |
1163 | u8 mask; /* mask to isolate the enable-bit */ | |
1164 | u8 val; /* value of masked reg when "enabled" */ | |
1165 | } ide_pci_enablebit_t; | |
1166 | ||
1167 | enum { | |
1168 | /* Uses ISA control ports not PCI ones. */ | |
a5d8c5c8 | 1169 | IDE_HFLAG_ISA_PORTS = (1 << 0), |
6a824c92 | 1170 | /* single port device */ |
a5d8c5c8 | 1171 | IDE_HFLAG_SINGLE = (1 << 1), |
6a824c92 BZ |
1172 | /* don't use legacy PIO blacklist */ |
1173 | IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2), | |
e277f91f BZ |
1174 | /* set for the second port of QD65xx */ |
1175 | IDE_HFLAG_QD_2ND_PORT = (1 << 3), | |
26bcb879 BZ |
1176 | /* use PIO8/9 for prefetch off/on */ |
1177 | IDE_HFLAG_ABUSE_PREFETCH = (1 << 4), | |
1178 | /* use PIO6/7 for fast-devsel off/on */ | |
1179 | IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5), | |
1180 | /* use 100-102 and 200-202 PIO values to set DMA modes */ | |
1181 | IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6), | |
aedea591 BZ |
1182 | /* |
1183 | * keep DMA setting when programming PIO mode, may be used only | |
1184 | * for hosts which have separate PIO and DMA timings (ie. PMAC) | |
1185 | */ | |
1186 | IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7), | |
88b2b32b BZ |
1187 | /* program host for the transfer mode after programming device */ |
1188 | IDE_HFLAG_POST_SET_MODE = (1 << 8), | |
1189 | /* don't program host/device for the transfer mode ("smart" hosts) */ | |
1190 | IDE_HFLAG_NO_SET_MODE = (1 << 9), | |
0ae2e178 BZ |
1191 | /* trust BIOS for programming chipset/device for DMA */ |
1192 | IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10), | |
cafa027b BZ |
1193 | /* host is CS5510/CS5520 */ |
1194 | IDE_HFLAG_CS5520 = (1 << 11), | |
33c1002e BZ |
1195 | /* ATAPI DMA is unsupported */ |
1196 | IDE_HFLAG_NO_ATAPI_DMA = (1 << 12), | |
5e71d9c5 BZ |
1197 | /* set if host is a "non-bootable" controller */ |
1198 | IDE_HFLAG_NON_BOOTABLE = (1 << 13), | |
47b68788 BZ |
1199 | /* host doesn't support DMA */ |
1200 | IDE_HFLAG_NO_DMA = (1 << 14), | |
1201 | /* check if host is PCI IDE device before allowing DMA */ | |
1202 | IDE_HFLAG_NO_AUTODMA = (1 << 15), | |
c5dd43ec BZ |
1203 | /* host uses MMIO */ |
1204 | IDE_HFLAG_MMIO = (1 << 16), | |
238e4f14 BZ |
1205 | /* no LBA48 */ |
1206 | IDE_HFLAG_NO_LBA48 = (1 << 17), | |
1207 | /* no LBA48 DMA */ | |
1208 | IDE_HFLAG_NO_LBA48_DMA = (1 << 18), | |
ed67b923 BZ |
1209 | /* data FIFO is cleared by an error */ |
1210 | IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19), | |
1c51361a BZ |
1211 | /* serialize ports */ |
1212 | IDE_HFLAG_SERIALIZE = (1 << 20), | |
3985ee3b BZ |
1213 | /* use legacy IRQs */ |
1214 | IDE_HFLAG_LEGACY_IRQS = (1 << 21), | |
8acf28c0 BZ |
1215 | /* force use of legacy IRQs */ |
1216 | IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22), | |
272a3709 BZ |
1217 | /* limit LBA48 requests to 256 sectors */ |
1218 | IDE_HFLAG_RQSIZE_256 = (1 << 23), | |
caea7602 BZ |
1219 | /* use 32-bit I/O ops */ |
1220 | IDE_HFLAG_IO_32BIT = (1 << 24), | |
1221 | /* unmask IRQs */ | |
1222 | IDE_HFLAG_UNMASK_IRQS = (1 << 25), | |
1fd18905 BZ |
1223 | /* serialize ports if DMA is possible (for sl82c105) */ |
1224 | IDE_HFLAG_SERIALIZE_DMA = (1 << 27), | |
8ac2b42a BZ |
1225 | /* force host out of "simplex" mode */ |
1226 | IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28), | |
4166c199 BZ |
1227 | /* DSC overlap is unsupported */ |
1228 | IDE_HFLAG_NO_DSC = (1 << 29), | |
807b90d0 BZ |
1229 | /* never use 32-bit I/O ops */ |
1230 | IDE_HFLAG_NO_IO_32BIT = (1 << 30), | |
1231 | /* never unmask IRQs */ | |
1232 | IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31), | |
1da177e4 LT |
1233 | }; |
1234 | ||
7cab14a7 | 1235 | #ifdef CONFIG_BLK_DEV_OFFBOARD |
7cab14a7 | 1236 | # define IDE_HFLAG_OFF_BOARD 0 |
5e71d9c5 BZ |
1237 | #else |
1238 | # define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE | |
7cab14a7 BZ |
1239 | #endif |
1240 | ||
039788e1 | 1241 | struct ide_port_info { |
1da177e4 | 1242 | char *name; |
a326b02b | 1243 | unsigned int (*init_chipset)(struct pci_dev *); |
1da177e4 LT |
1244 | void (*init_iops)(ide_hwif_t *); |
1245 | void (*init_hwif)(ide_hwif_t *); | |
b123f56e BZ |
1246 | int (*init_dma)(ide_hwif_t *, |
1247 | const struct ide_port_info *); | |
ac95beed | 1248 | |
374e042c | 1249 | const struct ide_tp_ops *tp_ops; |
ac95beed | 1250 | const struct ide_port_ops *port_ops; |
f37afdac | 1251 | const struct ide_dma_ops *dma_ops; |
ac95beed | 1252 | |
1da177e4 | 1253 | ide_pci_enablebit_t enablebits[2]; |
528a572d | 1254 | hwif_chipset_t chipset; |
9ffcf364 | 1255 | u32 host_flags; |
4099d143 | 1256 | u8 pio_mask; |
5f8b6c34 BZ |
1257 | u8 swdma_mask; |
1258 | u8 mwdma_mask; | |
18137207 | 1259 | u8 udma_mask; |
039788e1 | 1260 | }; |
1da177e4 | 1261 | |
6cdf6eb3 BZ |
1262 | int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *); |
1263 | int ide_pci_init_two(struct pci_dev *, struct pci_dev *, | |
1264 | const struct ide_port_info *, void *); | |
ef0b0427 | 1265 | void ide_pci_remove(struct pci_dev *); |
1da177e4 LT |
1266 | |
1267 | void ide_map_sg(ide_drive_t *, struct request *); | |
1268 | void ide_init_sg_cmd(ide_drive_t *, struct request *); | |
1269 | ||
1270 | #define BAD_DMA_DRIVE 0 | |
1271 | #define GOOD_DMA_DRIVE 1 | |
1272 | ||
65e5f2e3 JC |
1273 | struct drive_list_entry { |
1274 | const char *id_model; | |
1275 | const char *id_firmware; | |
1276 | }; | |
1277 | ||
4dde4492 | 1278 | int ide_in_drive_list(u16 *, const struct drive_list_entry *); |
a5b7e70d BZ |
1279 | |
1280 | #ifdef CONFIG_BLK_DEV_IDEDMA | |
1da177e4 | 1281 | int __ide_dma_bad_drive(ide_drive_t *); |
3ab7efe8 | 1282 | int ide_id_dma_bug(ide_drive_t *); |
7670df73 BZ |
1283 | |
1284 | u8 ide_find_dma_mode(ide_drive_t *, u8); | |
1285 | ||
1286 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) | |
1287 | { | |
1288 | return ide_find_dma_mode(drive, XFER_UDMA_6); | |
1289 | } | |
1290 | ||
4a546e04 | 1291 | void ide_dma_off_quietly(ide_drive_t *); |
7469aaf6 | 1292 | void ide_dma_off(ide_drive_t *); |
4a546e04 | 1293 | void ide_dma_on(ide_drive_t *); |
3608b5d7 | 1294 | int ide_set_dma(ide_drive_t *); |
578cfa0d | 1295 | void ide_check_dma_crc(ide_drive_t *); |
1da177e4 LT |
1296 | ide_startstop_t ide_dma_intr(ide_drive_t *); |
1297 | ||
062f9f02 BZ |
1298 | int ide_build_sglist(ide_drive_t *, struct request *); |
1299 | void ide_destroy_dmatable(ide_drive_t *); | |
1300 | ||
8e882ba1 | 1301 | #ifdef CONFIG_BLK_DEV_IDEDMA_SFF |
1da177e4 | 1302 | extern int ide_build_dmatable(ide_drive_t *, struct request *); |
b8e73fba BZ |
1303 | int ide_allocate_dma_engine(ide_hwif_t *); |
1304 | void ide_release_dma_engine(ide_hwif_t *); | |
1da177e4 | 1305 | |
15ce926a | 1306 | void ide_dma_host_set(ide_drive_t *, int); |
1da177e4 | 1307 | extern int ide_dma_setup(ide_drive_t *); |
f37afdac | 1308 | void ide_dma_exec_cmd(ide_drive_t *, u8); |
1da177e4 LT |
1309 | extern void ide_dma_start(ide_drive_t *); |
1310 | extern int __ide_dma_end(ide_drive_t *); | |
f37afdac | 1311 | int ide_dma_test_irq(ide_drive_t *); |
841d2a9b | 1312 | extern void ide_dma_lost_irq(ide_drive_t *); |
c283f5db | 1313 | extern void ide_dma_timeout(ide_drive_t *); |
71fc9fcc | 1314 | extern const struct ide_dma_ops sff_dma_ops; |
8e882ba1 | 1315 | #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */ |
1da177e4 LT |
1316 | |
1317 | #else | |
3ab7efe8 | 1318 | static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; } |
7670df73 | 1319 | static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } |
2d5eaa6d | 1320 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } |
4a546e04 | 1321 | static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; } |
7469aaf6 | 1322 | static inline void ide_dma_off(ide_drive_t *drive) { ; } |
4a546e04 | 1323 | static inline void ide_dma_on(ide_drive_t *drive) { ; } |
1da177e4 | 1324 | static inline void ide_dma_verbose(ide_drive_t *drive) { ; } |
3608b5d7 | 1325 | static inline int ide_set_dma(ide_drive_t *drive) { return 1; } |
578cfa0d | 1326 | static inline void ide_check_dma_crc(ide_drive_t *drive) { ; } |
1da177e4 LT |
1327 | #endif /* CONFIG_BLK_DEV_IDEDMA */ |
1328 | ||
8e882ba1 | 1329 | #ifndef CONFIG_BLK_DEV_IDEDMA_SFF |
0d1bad21 | 1330 | static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; } |
1da177e4 LT |
1331 | #endif |
1332 | ||
e3a59b4d HR |
1333 | #ifdef CONFIG_BLK_DEV_IDEACPI |
1334 | extern int ide_acpi_exec_tfs(ide_drive_t *drive); | |
1335 | extern void ide_acpi_get_timing(ide_hwif_t *hwif); | |
1336 | extern void ide_acpi_push_timing(ide_hwif_t *hwif); | |
1337 | extern void ide_acpi_init(ide_hwif_t *hwif); | |
eafd88a3 | 1338 | void ide_acpi_port_init_devices(ide_hwif_t *); |
5e32132b | 1339 | extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); |
e3a59b4d HR |
1340 | #else |
1341 | static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } | |
1342 | static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } | |
1343 | static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } | |
1344 | static inline void ide_acpi_init(ide_hwif_t *hwif) { ; } | |
eafd88a3 | 1345 | static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; } |
5e32132b | 1346 | static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {} |
e3a59b4d HR |
1347 | #endif |
1348 | ||
fbd13088 | 1349 | void ide_remove_port_from_hwgroup(ide_hwif_t *); |
387750c3 | 1350 | void ide_unregister(ide_hwif_t *); |
1da177e4 LT |
1351 | |
1352 | void ide_register_region(struct gendisk *); | |
1353 | void ide_unregister_region(struct gendisk *); | |
1354 | ||
f01393e4 | 1355 | void ide_undecoded_slave(ide_drive_t *); |
1da177e4 | 1356 | |
9fd91d95 BZ |
1357 | void ide_port_apply_params(ide_hwif_t *); |
1358 | ||
48c3c107 BZ |
1359 | struct ide_host *ide_host_alloc_all(const struct ide_port_info *, hw_regs_t **); |
1360 | struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); | |
8a69580e | 1361 | void ide_host_free(struct ide_host *); |
48c3c107 BZ |
1362 | int ide_host_register(struct ide_host *, const struct ide_port_info *, |
1363 | hw_regs_t **); | |
6f904d01 BZ |
1364 | int ide_host_add(const struct ide_port_info *, hw_regs_t **, |
1365 | struct ide_host **); | |
48c3c107 | 1366 | void ide_host_remove(struct ide_host *); |
0bfeee7d | 1367 | int ide_legacy_device_add(const struct ide_port_info *, unsigned long); |
2dde7861 BZ |
1368 | void ide_port_unregister_devices(ide_hwif_t *); |
1369 | void ide_port_scan(ide_hwif_t *); | |
1da177e4 LT |
1370 | |
1371 | static inline void *ide_get_hwifdata (ide_hwif_t * hwif) | |
1372 | { | |
1373 | return hwif->hwif_data; | |
1374 | } | |
1375 | ||
1376 | static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) | |
1377 | { | |
1378 | hwif->hwif_data = data; | |
1379 | } | |
1380 | ||
3ab7efe8 | 1381 | const char *ide_xfer_verbose(u8 mode); |
1da177e4 LT |
1382 | extern void ide_toggle_bounce(ide_drive_t *drive, int on); |
1383 | extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate); | |
1384 | ||
a501633c | 1385 | u64 ide_get_lba_addr(struct ide_taskfile *, int); |
1da177e4 LT |
1386 | u8 ide_dump_status(ide_drive_t *, const char *, u8); |
1387 | ||
3be53f3f BZ |
1388 | struct ide_timing { |
1389 | u8 mode; | |
1390 | u8 setup; /* t1 */ | |
1391 | u16 act8b; /* t2 for 8-bit io */ | |
1392 | u16 rec8b; /* t2i for 8-bit io */ | |
1393 | u16 cyc8b; /* t0 for 8-bit io */ | |
1394 | u16 active; /* t2 or tD */ | |
1395 | u16 recover; /* t2i or tK */ | |
1396 | u16 cycle; /* t0 */ | |
1397 | u16 udma; /* t2CYCTYP/2 */ | |
1398 | }; | |
1399 | ||
1400 | enum { | |
1401 | IDE_TIMING_SETUP = (1 << 0), | |
1402 | IDE_TIMING_ACT8B = (1 << 1), | |
1403 | IDE_TIMING_REC8B = (1 << 2), | |
1404 | IDE_TIMING_CYC8B = (1 << 3), | |
1405 | IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B | | |
1406 | IDE_TIMING_CYC8B, | |
1407 | IDE_TIMING_ACTIVE = (1 << 4), | |
1408 | IDE_TIMING_RECOVER = (1 << 5), | |
1409 | IDE_TIMING_CYCLE = (1 << 6), | |
1410 | IDE_TIMING_UDMA = (1 << 7), | |
1411 | IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT | | |
1412 | IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER | | |
1413 | IDE_TIMING_CYCLE | IDE_TIMING_UDMA, | |
1414 | }; | |
1415 | ||
f06ab340 | 1416 | struct ide_timing *ide_timing_find_mode(u8); |
c9d6c1a2 | 1417 | u16 ide_pio_cycle_time(ide_drive_t *, u8); |
f06ab340 BZ |
1418 | void ide_timing_merge(struct ide_timing *, struct ide_timing *, |
1419 | struct ide_timing *, unsigned int); | |
1420 | int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int); | |
1421 | ||
9ad54093 BZ |
1422 | int ide_scan_pio_blacklist(char *); |
1423 | ||
2134758d | 1424 | u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8); |
1da177e4 | 1425 | |
88b2b32b BZ |
1426 | int ide_set_pio_mode(ide_drive_t *, u8); |
1427 | int ide_set_dma_mode(ide_drive_t *, u8); | |
1428 | ||
26bcb879 BZ |
1429 | void ide_set_pio(ide_drive_t *, u8); |
1430 | ||
1431 | static inline void ide_set_max_pio(ide_drive_t *drive) | |
1432 | { | |
1433 | ide_set_pio(drive, 255); | |
1434 | } | |
1da177e4 LT |
1435 | |
1436 | extern spinlock_t ide_lock; | |
ef29888e | 1437 | extern struct mutex ide_cfg_mtx; |
1da177e4 LT |
1438 | /* |
1439 | * Structure locking: | |
1440 | * | |
ef29888e | 1441 | * ide_cfg_mtx and ide_lock together protect changes to |
1da177e4 LT |
1442 | * ide_hwif_t->{next,hwgroup} |
1443 | * ide_drive_t->next | |
1444 | * | |
1445 | * ide_hwgroup_t->busy: ide_lock | |
1446 | * ide_hwgroup_t->hwif: ide_lock | |
1447 | * ide_hwif_t->mate: constant, no locking | |
1448 | * ide_drive_t->hwif: constant, no locking | |
1449 | */ | |
1450 | ||
366c7f55 | 1451 | #define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0) |
1da177e4 LT |
1452 | |
1453 | extern struct bus_type ide_bus_type; | |
f74c9141 | 1454 | extern struct class *ide_port_class; |
1da177e4 | 1455 | |
1a4e4d4d BZ |
1456 | /* check if CACHE FLUSH command is supported (as defined in ATA-6) */ |
1457 | #define ide_id_has_flush_cache(id) ((id)[ATA_ID_CFS_ENABLE_2] & 0x1000) | |
1da177e4 LT |
1458 | |
1459 | /* some Maxtor disks have bit 13 defined incorrectly so check bit 10 too */ | |
1460 | #define ide_id_has_flush_cache_ext(id) \ | |
4dde4492 | 1461 | (((id)[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400) |
1da177e4 | 1462 | |
7b9f25b5 BZ |
1463 | static inline void ide_dump_identify(u8 *id) |
1464 | { | |
1465 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); | |
1466 | } | |
1467 | ||
86b37860 CL |
1468 | static inline int hwif_to_node(ide_hwif_t *hwif) |
1469 | { | |
96f80219 | 1470 | return hwif->dev ? dev_to_node(hwif->dev) : -1; |
86b37860 CL |
1471 | } |
1472 | ||
7e59ea21 | 1473 | static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) |
1b678347 | 1474 | { |
7e59ea21 | 1475 | ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1]; |
1b678347 | 1476 | |
7e59ea21 | 1477 | return peer->present ? peer : NULL; |
1b678347 | 1478 | } |
1da177e4 | 1479 | #endif /* _IDE_H */ |