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1da177e4 LT |
1 | #ifndef _IDE_H |
2 | #define _IDE_H | |
3 | /* | |
4 | * linux/include/linux/ide.h | |
5 | * | |
6 | * Copyright (C) 1994-2002 Linus Torvalds & authors | |
7 | */ | |
8 | ||
1da177e4 LT |
9 | #include <linux/init.h> |
10 | #include <linux/ioport.h> | |
3ceca727 | 11 | #include <linux/ata.h> |
1da177e4 LT |
12 | #include <linux/blkdev.h> |
13 | #include <linux/proc_fs.h> | |
14 | #include <linux/interrupt.h> | |
15 | #include <linux/bitops.h> | |
16 | #include <linux/bio.h> | |
17 | #include <linux/device.h> | |
18 | #include <linux/pci.h> | |
f36d4024 | 19 | #include <linux/completion.h> |
feb22b7f | 20 | #include <linux/pm.h> |
e3a59b4d HR |
21 | #ifdef CONFIG_BLK_DEV_IDEACPI |
22 | #include <acpi/acpi.h> | |
23 | #endif | |
1da177e4 LT |
24 | #include <asm/byteorder.h> |
25 | #include <asm/system.h> | |
26 | #include <asm/io.h> | |
f9383c42 | 27 | #include <asm/mutex.h> |
1da177e4 | 28 | |
729d4de9 | 29 | #if defined(CONFIG_CRIS) || defined(CONFIG_FRV) |
4ee06b7e BZ |
30 | # define SUPPORT_VLB_SYNC 0 |
31 | #else | |
32 | # define SUPPORT_VLB_SYNC 1 | |
1da177e4 LT |
33 | #endif |
34 | ||
35 | /* | |
36 | * Used to indicate "no IRQ", should be a value that cannot be an IRQ | |
37 | * number. | |
38 | */ | |
39 | ||
40 | #define IDE_NO_IRQ (-1) | |
41 | ||
1da177e4 LT |
42 | typedef unsigned char byte; /* used everywhere */ |
43 | ||
44 | /* | |
45 | * Probably not wise to fiddle with these | |
46 | */ | |
47 | #define ERROR_MAX 8 /* Max read/write errors per sector */ | |
48 | #define ERROR_RESET 3 /* Reset controller every 4th retry */ | |
49 | #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ | |
50 | ||
1da177e4 LT |
51 | #define HWIF(drive) ((ide_hwif_t *)((drive)->hwif)) |
52 | #define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup)) | |
53 | ||
54 | /* | |
55 | * Definitions for accessing IDE controller registers | |
56 | */ | |
57 | #define IDE_NR_PORTS (10) | |
58 | ||
4c3032d8 BZ |
59 | struct ide_io_ports { |
60 | unsigned long data_addr; | |
61 | ||
62 | union { | |
63 | unsigned long error_addr; /* read: error */ | |
64 | unsigned long feature_addr; /* write: feature */ | |
65 | }; | |
66 | ||
67 | unsigned long nsect_addr; | |
68 | unsigned long lbal_addr; | |
69 | unsigned long lbam_addr; | |
70 | unsigned long lbah_addr; | |
71 | ||
72 | unsigned long device_addr; | |
73 | ||
74 | union { | |
75 | unsigned long status_addr; /* read: status */ | |
76 | unsigned long command_addr; /* write: command */ | |
77 | }; | |
78 | ||
79 | unsigned long ctl_addr; | |
80 | ||
81 | unsigned long irq_addr; | |
82 | }; | |
1da177e4 LT |
83 | |
84 | #define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) | |
1da177e4 | 85 | |
3a7d2484 BZ |
86 | #define BAD_R_STAT (ATA_BUSY | ATA_ERR) |
87 | #define BAD_W_STAT (BAD_R_STAT | ATA_DF) | |
88 | #define BAD_STAT (BAD_R_STAT | ATA_DRQ) | |
89 | #define DRIVE_READY (ATA_DRDY | ATA_DSC) | |
90 | ||
91 | #define BAD_CRC (ATA_ABORTED | ATA_ICRC) | |
1da177e4 LT |
92 | |
93 | #define SATA_NR_PORTS (3) /* 16 possible ?? */ | |
94 | ||
95 | #define SATA_STATUS_OFFSET (0) | |
1da177e4 | 96 | #define SATA_ERROR_OFFSET (1) |
1da177e4 | 97 | #define SATA_CONTROL_OFFSET (2) |
1da177e4 | 98 | |
1da177e4 LT |
99 | /* |
100 | * Our Physical Region Descriptor (PRD) table should be large enough | |
101 | * to handle the biggest I/O request we are likely to see. Since requests | |
102 | * can have no more than 256 sectors, and since the typical blocksize is | |
103 | * two or more sectors, we could get by with a limit of 128 entries here for | |
104 | * the usual worst case. Most requests seem to include some contiguous blocks, | |
105 | * further reducing the number of table entries required. | |
106 | * | |
107 | * The driver reverts to PIO mode for individual requests that exceed | |
108 | * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling | |
109 | * 100% of all crazy scenarios here is not necessary. | |
110 | * | |
111 | * As it turns out though, we must allocate a full 4KB page for this, | |
112 | * so the two PRD tables (ide0 & ide1) will each get half of that, | |
113 | * allowing each to have about 256 entries (8 bytes each) from this. | |
114 | */ | |
115 | #define PRD_BYTES 8 | |
116 | #define PRD_ENTRIES 256 | |
117 | ||
118 | /* | |
119 | * Some more useful definitions | |
120 | */ | |
121 | #define PARTN_BITS 6 /* number of minor dev bits for partitions */ | |
122 | #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ | |
123 | #define SECTOR_SIZE 512 | |
151a6701 | 124 | |
1da177e4 LT |
125 | #define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t))) |
126 | ||
127 | /* | |
128 | * Timeouts for various operations: | |
129 | */ | |
d6e2955a BZ |
130 | enum { |
131 | /* spec allows up to 20ms */ | |
132 | WAIT_DRQ = HZ / 10, /* 100ms */ | |
133 | /* some laptops are very slow */ | |
134 | WAIT_READY = 5 * HZ, /* 5s */ | |
135 | /* should be less than 3ms (?), if all ATAPI CD is closed at boot */ | |
136 | WAIT_PIDENTIFY = 10 * HZ, /* 10s */ | |
137 | /* worst case when spinning up */ | |
138 | WAIT_WORSTCASE = 30 * HZ, /* 30s */ | |
139 | /* maximum wait for an IRQ to happen */ | |
140 | WAIT_CMD = 10 * HZ, /* 10s */ | |
141 | /* Some drives require a longer IRQ timeout. */ | |
142 | WAIT_FLOPPY_CMD = 50 * HZ, /* 50s */ | |
143 | /* | |
144 | * Some drives (for example, Seagate STT3401A Travan) require a very | |
145 | * long timeout, because they don't return an interrupt or clear their | |
146 | * BSY bit until after the command completes (even retension commands). | |
147 | */ | |
148 | WAIT_TAPE_CMD = 900 * HZ, /* 900s */ | |
149 | /* minimum sleep time */ | |
150 | WAIT_MIN_SLEEP = HZ / 50, /* 20ms */ | |
151 | }; | |
1da177e4 | 152 | |
79e36a9f EO |
153 | /* |
154 | * Op codes for special requests to be handled by ide_special_rq(). | |
155 | * Values should be in the range of 0x20 to 0x3f. | |
156 | */ | |
157 | #define REQ_DRIVE_RESET 0x20 | |
92f1f8fd | 158 | #define REQ_DEVSET_EXEC 0x21 |
4abdc6ee EO |
159 | #define REQ_PARK_HEADS 0x22 |
160 | #define REQ_UNPARK_HEADS 0x23 | |
79e36a9f | 161 | |
1da177e4 LT |
162 | /* |
163 | * Check for an interrupt and acknowledge the interrupt status | |
164 | */ | |
165 | struct hwif_s; | |
166 | typedef int (ide_ack_intr_t)(struct hwif_s *); | |
167 | ||
1da177e4 LT |
168 | /* |
169 | * hwif_chipset_t is used to keep track of the specific hardware | |
170 | * chipset used by each IDE interface, if known. | |
171 | */ | |
528a572d | 172 | enum { ide_unknown, ide_generic, ide_pci, |
1da177e4 LT |
173 | ide_cmd640, ide_dtc2278, ide_ali14xx, |
174 | ide_qd65xx, ide_umc8672, ide_ht6560b, | |
175 | ide_rz1000, ide_trm290, | |
176 | ide_cmd646, ide_cy82c693, ide_4drives, | |
b7691646 | 177 | ide_pmac, ide_acorn, |
9a0e77f2 | 178 | ide_au1xxx, ide_palm3710 |
528a572d BZ |
179 | }; |
180 | ||
181 | typedef u8 hwif_chipset_t; | |
1da177e4 LT |
182 | |
183 | /* | |
184 | * Structure to hold all information about the location of this port | |
185 | */ | |
186 | typedef struct hw_regs_s { | |
4c3032d8 BZ |
187 | union { |
188 | struct ide_io_ports io_ports; | |
189 | unsigned long io_ports_array[IDE_NR_PORTS]; | |
190 | }; | |
191 | ||
1da177e4 | 192 | int irq; /* our irq number */ |
1da177e4 LT |
193 | ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ |
194 | hwif_chipset_t chipset; | |
c56c5648 | 195 | struct device *dev, *parent; |
d6276b5f | 196 | unsigned long config; |
1da177e4 LT |
197 | } hw_regs_t; |
198 | ||
cbb010c1 | 199 | void ide_init_port_data(struct hwif_s *, unsigned int); |
57c802e8 | 200 | void ide_init_port_hw(struct hwif_s *, hw_regs_t *); |
baa8f3e9 | 201 | |
1da177e4 LT |
202 | static inline void ide_std_init_ports(hw_regs_t *hw, |
203 | unsigned long io_addr, | |
204 | unsigned long ctl_addr) | |
205 | { | |
206 | unsigned int i; | |
207 | ||
4c3032d8 BZ |
208 | for (i = 0; i <= 7; i++) |
209 | hw->io_ports_array[i] = io_addr++; | |
1da177e4 | 210 | |
4c3032d8 | 211 | hw->io_ports.ctl_addr = ctl_addr; |
1da177e4 LT |
212 | } |
213 | ||
a861beb1 BZ |
214 | /* for IDE PCI controllers in legacy mode, temporary */ |
215 | static inline int __ide_default_irq(unsigned long base) | |
216 | { | |
217 | switch (base) { | |
218 | #ifdef CONFIG_IA64 | |
219 | case 0x1f0: return isa_irq_to_vector(14); | |
220 | case 0x170: return isa_irq_to_vector(15); | |
221 | #else | |
222 | case 0x1f0: return 14; | |
223 | case 0x170: return 15; | |
224 | #endif | |
225 | } | |
226 | return 0; | |
227 | } | |
228 | ||
2a8f7450 BZ |
229 | #if defined(CONFIG_ARM) || defined(CONFIG_FRV) || defined(CONFIG_M68K) || \ |
230 | defined(CONFIG_MIPS) || defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \ | |
231 | || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64) | |
1da177e4 | 232 | #include <asm/ide.h> |
2a8f7450 BZ |
233 | #else |
234 | #include <asm-generic/ide_iops.h> | |
235 | #endif | |
1da177e4 | 236 | |
c5bfc375 | 237 | #define MAX_HWIFS 10 |
83ae20c8 | 238 | |
1da177e4 LT |
239 | /* Currently only m68k, apus and m8xx need it */ |
240 | #ifndef IDE_ARCH_ACK_INTR | |
241 | # define ide_ack_intr(hwif) (1) | |
242 | #endif | |
243 | ||
244 | /* Currently only Atari needs it */ | |
245 | #ifndef IDE_ARCH_LOCK | |
246 | # define ide_release_lock() do {} while (0) | |
247 | # define ide_get_lock(hdlr, data) do {} while (0) | |
248 | #endif /* IDE_ARCH_LOCK */ | |
249 | ||
250 | /* | |
251 | * Now for the data we need to maintain per-drive: ide_drive_t | |
252 | */ | |
253 | ||
254 | #define ide_scsi 0x21 | |
255 | #define ide_disk 0x20 | |
256 | #define ide_optical 0x7 | |
257 | #define ide_cdrom 0x5 | |
258 | #define ide_tape 0x1 | |
259 | #define ide_floppy 0x0 | |
260 | ||
261 | /* | |
262 | * Special Driver Flags | |
263 | * | |
264 | * set_geometry : respecify drive geometry | |
265 | * recalibrate : seek to cyl 0 | |
266 | * set_multmode : set multmode count | |
1da177e4 LT |
267 | * reserved : unused |
268 | */ | |
269 | typedef union { | |
270 | unsigned all : 8; | |
271 | struct { | |
1da177e4 LT |
272 | unsigned set_geometry : 1; |
273 | unsigned recalibrate : 1; | |
274 | unsigned set_multmode : 1; | |
6982daf7 | 275 | unsigned reserved : 5; |
1da177e4 LT |
276 | } b; |
277 | } special_t; | |
278 | ||
1da177e4 LT |
279 | /* |
280 | * Status returned from various ide_ functions | |
281 | */ | |
282 | typedef enum { | |
283 | ide_stopped, /* no drive operation was started */ | |
284 | ide_started, /* a drive operation was started, handler was set */ | |
285 | } ide_startstop_t; | |
286 | ||
d6ff9f64 BZ |
287 | enum { |
288 | IDE_TFLAG_LBA48 = (1 << 0), | |
289 | IDE_TFLAG_FLAGGED = (1 << 2), | |
290 | IDE_TFLAG_OUT_DATA = (1 << 3), | |
291 | IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4), | |
292 | IDE_TFLAG_OUT_HOB_NSECT = (1 << 5), | |
293 | IDE_TFLAG_OUT_HOB_LBAL = (1 << 6), | |
294 | IDE_TFLAG_OUT_HOB_LBAM = (1 << 7), | |
295 | IDE_TFLAG_OUT_HOB_LBAH = (1 << 8), | |
296 | IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE | | |
297 | IDE_TFLAG_OUT_HOB_NSECT | | |
298 | IDE_TFLAG_OUT_HOB_LBAL | | |
299 | IDE_TFLAG_OUT_HOB_LBAM | | |
300 | IDE_TFLAG_OUT_HOB_LBAH, | |
301 | IDE_TFLAG_OUT_FEATURE = (1 << 9), | |
302 | IDE_TFLAG_OUT_NSECT = (1 << 10), | |
303 | IDE_TFLAG_OUT_LBAL = (1 << 11), | |
304 | IDE_TFLAG_OUT_LBAM = (1 << 12), | |
305 | IDE_TFLAG_OUT_LBAH = (1 << 13), | |
306 | IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE | | |
307 | IDE_TFLAG_OUT_NSECT | | |
308 | IDE_TFLAG_OUT_LBAL | | |
309 | IDE_TFLAG_OUT_LBAM | | |
310 | IDE_TFLAG_OUT_LBAH, | |
311 | IDE_TFLAG_OUT_DEVICE = (1 << 14), | |
312 | IDE_TFLAG_WRITE = (1 << 15), | |
313 | IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16), | |
314 | IDE_TFLAG_IN_DATA = (1 << 17), | |
315 | IDE_TFLAG_CUSTOM_HANDLER = (1 << 18), | |
316 | IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19), | |
317 | IDE_TFLAG_IN_HOB_FEATURE = (1 << 20), | |
318 | IDE_TFLAG_IN_HOB_NSECT = (1 << 21), | |
319 | IDE_TFLAG_IN_HOB_LBAL = (1 << 22), | |
320 | IDE_TFLAG_IN_HOB_LBAM = (1 << 23), | |
321 | IDE_TFLAG_IN_HOB_LBAH = (1 << 24), | |
322 | IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL | | |
323 | IDE_TFLAG_IN_HOB_LBAM | | |
324 | IDE_TFLAG_IN_HOB_LBAH, | |
325 | IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | | |
326 | IDE_TFLAG_IN_HOB_NSECT | | |
327 | IDE_TFLAG_IN_HOB_LBA, | |
328 | IDE_TFLAG_IN_FEATURE = (1 << 1), | |
329 | IDE_TFLAG_IN_NSECT = (1 << 25), | |
330 | IDE_TFLAG_IN_LBAL = (1 << 26), | |
331 | IDE_TFLAG_IN_LBAM = (1 << 27), | |
332 | IDE_TFLAG_IN_LBAH = (1 << 28), | |
333 | IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL | | |
334 | IDE_TFLAG_IN_LBAM | | |
335 | IDE_TFLAG_IN_LBAH, | |
336 | IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | | |
337 | IDE_TFLAG_IN_LBA, | |
338 | IDE_TFLAG_IN_DEVICE = (1 << 29), | |
339 | IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | | |
340 | IDE_TFLAG_IN_HOB, | |
341 | IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | | |
342 | IDE_TFLAG_IN_TF, | |
343 | IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | | |
344 | IDE_TFLAG_IN_DEVICE, | |
345 | /* force 16-bit I/O operations */ | |
346 | IDE_TFLAG_IO_16BIT = (1 << 30), | |
347 | /* ide_task_t was allocated using kmalloc() */ | |
348 | IDE_TFLAG_DYN = (1 << 31), | |
349 | }; | |
350 | ||
351 | struct ide_taskfile { | |
352 | u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */ | |
353 | ||
354 | u8 hob_feature; /* 1-5: additional data to support LBA48 */ | |
355 | u8 hob_nsect; | |
356 | u8 hob_lbal; | |
357 | u8 hob_lbam; | |
358 | u8 hob_lbah; | |
359 | ||
360 | u8 data; /* 6: low data byte (for TASKFILE IOCTL) */ | |
361 | ||
362 | union { /* 7: */ | |
363 | u8 error; /* read: error */ | |
364 | u8 feature; /* write: feature */ | |
365 | }; | |
366 | ||
367 | u8 nsect; /* 8: number of sectors */ | |
368 | u8 lbal; /* 9: LBA low */ | |
369 | u8 lbam; /* 10: LBA mid */ | |
370 | u8 lbah; /* 11: LBA high */ | |
371 | ||
372 | u8 device; /* 12: device select */ | |
373 | ||
374 | union { /* 13: */ | |
375 | u8 status; /* read: status */ | |
376 | u8 command; /* write: command */ | |
377 | }; | |
378 | }; | |
379 | ||
380 | typedef struct ide_task_s { | |
381 | union { | |
382 | struct ide_taskfile tf; | |
383 | u8 tf_array[14]; | |
384 | }; | |
385 | u32 tf_flags; | |
386 | int data_phase; | |
387 | struct request *rq; /* copy of request */ | |
388 | void *special; /* valid_t generally */ | |
389 | } ide_task_t; | |
390 | ||
67c56364 BZ |
391 | /* ATAPI packet command flags */ |
392 | enum { | |
393 | /* set when an error is considered normal - no retry (ide-tape) */ | |
394 | PC_FLAG_ABORT = (1 << 0), | |
395 | PC_FLAG_SUPPRESS_ERROR = (1 << 1), | |
396 | PC_FLAG_WAIT_FOR_DSC = (1 << 2), | |
397 | PC_FLAG_DMA_OK = (1 << 3), | |
398 | PC_FLAG_DMA_IN_PROGRESS = (1 << 4), | |
399 | PC_FLAG_DMA_ERROR = (1 << 5), | |
400 | PC_FLAG_WRITING = (1 << 6), | |
401 | /* command timed out */ | |
402 | PC_FLAG_TIMEDOUT = (1 << 7), | |
403 | }; | |
404 | ||
405 | /* | |
406 | * With each packet command, we allocate a buffer of IDE_PC_BUFFER_SIZE bytes. | |
407 | * This is used for several packet commands (not for READ/WRITE commands). | |
408 | */ | |
409 | #define IDE_PC_BUFFER_SIZE 256 | |
410 | ||
411 | struct ide_atapi_pc { | |
412 | /* actual packet bytes */ | |
413 | u8 c[12]; | |
414 | /* incremented on each retry */ | |
415 | int retries; | |
416 | int error; | |
417 | ||
418 | /* bytes to transfer */ | |
419 | int req_xfer; | |
420 | /* bytes actually transferred */ | |
421 | int xferred; | |
422 | ||
423 | /* data buffer */ | |
424 | u8 *buf; | |
425 | /* current buffer position */ | |
426 | u8 *cur_pos; | |
427 | int buf_size; | |
428 | /* missing/available data on the current buffer */ | |
429 | int b_count; | |
430 | ||
431 | /* the corresponding request */ | |
432 | struct request *rq; | |
433 | ||
434 | unsigned long flags; | |
435 | ||
436 | /* | |
437 | * those are more or less driver-specific and some of them are subject | |
438 | * to change/removal later. | |
439 | */ | |
440 | u8 pc_buf[IDE_PC_BUFFER_SIZE]; | |
441 | ||
442 | /* idetape only */ | |
443 | struct idetape_bh *bh; | |
444 | char *b_data; | |
445 | ||
446 | /* idescsi only for now */ | |
447 | struct scatterlist *sg; | |
448 | unsigned int sg_cnt; | |
449 | ||
450 | struct scsi_cmnd *scsi_cmd; | |
451 | void (*done) (struct scsi_cmnd *); | |
452 | ||
453 | unsigned long timeout; | |
454 | }; | |
455 | ||
8185d5aa | 456 | struct ide_devset; |
1da177e4 | 457 | struct ide_driver_s; |
1da177e4 | 458 | |
e3a59b4d HR |
459 | #ifdef CONFIG_BLK_DEV_IDEACPI |
460 | struct ide_acpi_drive_link; | |
461 | struct ide_acpi_hwif_link; | |
462 | #endif | |
463 | ||
806f80a6 BZ |
464 | struct ide_drive_s; |
465 | ||
466 | struct ide_disk_ops { | |
467 | int (*check)(struct ide_drive_s *, const char *); | |
468 | int (*get_capacity)(struct ide_drive_s *); | |
469 | void (*setup)(struct ide_drive_s *); | |
470 | void (*flush)(struct ide_drive_s *); | |
471 | int (*init_media)(struct ide_drive_s *, struct gendisk *); | |
472 | int (*set_doorlock)(struct ide_drive_s *, struct gendisk *, | |
473 | int); | |
474 | ide_startstop_t (*do_request)(struct ide_drive_s *, struct request *, | |
475 | sector_t); | |
476 | int (*end_request)(struct ide_drive_s *, int, int); | |
badf8082 AV |
477 | int (*ioctl)(struct ide_drive_s *, struct block_device *, |
478 | fmode_t, unsigned int, unsigned long); | |
806f80a6 BZ |
479 | }; |
480 | ||
3b8ac539 BP |
481 | /* ATAPI device flags */ |
482 | enum { | |
483 | IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), | |
0578042d BZ |
484 | |
485 | /* ide-cd */ | |
3b8ac539 BP |
486 | /* Drive cannot eject the disc. */ |
487 | IDE_AFLAG_NO_EJECT = (1 << 3), | |
488 | /* Drive is a pre ATAPI 1.2 drive. */ | |
489 | IDE_AFLAG_PRE_ATAPI12 = (1 << 4), | |
490 | /* TOC addresses are in BCD. */ | |
491 | IDE_AFLAG_TOCADDR_AS_BCD = (1 << 5), | |
492 | /* TOC track numbers are in BCD. */ | |
493 | IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 6), | |
494 | /* | |
495 | * Drive does not provide data in multiples of SECTOR_SIZE | |
496 | * when more than one interrupt is needed. | |
497 | */ | |
498 | IDE_AFLAG_LIMIT_NFRAMES = (1 << 7), | |
499 | /* Seeking in progress. */ | |
500 | IDE_AFLAG_SEEKING = (1 << 8), | |
501 | /* Saved TOC information is current. */ | |
502 | IDE_AFLAG_TOC_VALID = (1 << 9), | |
503 | /* We think that the drive door is locked. */ | |
504 | IDE_AFLAG_DOOR_LOCKED = (1 << 10), | |
505 | /* SET_CD_SPEED command is unsupported. */ | |
506 | IDE_AFLAG_NO_SPEED_SELECT = (1 << 11), | |
507 | IDE_AFLAG_VERTOS_300_SSD = (1 << 12), | |
508 | IDE_AFLAG_VERTOS_600_ESD = (1 << 13), | |
509 | IDE_AFLAG_SANYO_3CD = (1 << 14), | |
510 | IDE_AFLAG_FULL_CAPS_PAGE = (1 << 15), | |
511 | IDE_AFLAG_PLAY_AUDIO_OK = (1 << 16), | |
512 | IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17), | |
513 | ||
514 | /* ide-floppy */ | |
3b8ac539 BP |
515 | /* Avoid commands not supported in Clik drive */ |
516 | IDE_AFLAG_CLIK_DRIVE = (1 << 19), | |
517 | /* Requires BH algorithm for packets */ | |
518 | IDE_AFLAG_ZIP_DRIVE = (1 << 20), | |
49cac39e BZ |
519 | /* Supports format progress report */ |
520 | IDE_AFLAG_SRFP = (1 << 22), | |
3b8ac539 BP |
521 | |
522 | /* ide-tape */ | |
49cac39e | 523 | IDE_AFLAG_IGNORE_DSC = (1 << 23), |
3b8ac539 | 524 | /* 0 When the tape position is unknown */ |
49cac39e | 525 | IDE_AFLAG_ADDRESS_VALID = (1 << 24), |
3b8ac539 | 526 | /* Device already opened */ |
49cac39e | 527 | IDE_AFLAG_BUSY = (1 << 25), |
3b8ac539 | 528 | /* Attempt to auto-detect the current user block size */ |
49cac39e | 529 | IDE_AFLAG_DETECT_BS = (1 << 26), |
3b8ac539 | 530 | /* Currently on a filemark */ |
49cac39e | 531 | IDE_AFLAG_FILEMARK = (1 << 27), |
3b8ac539 | 532 | /* 0 = no tape is loaded, so we don't rewind after ejecting */ |
49cac39e | 533 | IDE_AFLAG_MEDIUM_PRESENT = (1 << 28), |
f20f2586 | 534 | |
49cac39e | 535 | IDE_AFLAG_NO_AUTOCLOSE = (1 << 29), |
3b8ac539 BP |
536 | }; |
537 | ||
97100fc8 BZ |
538 | /* device flags */ |
539 | enum { | |
540 | /* restore settings after device reset */ | |
541 | IDE_DFLAG_KEEP_SETTINGS = (1 << 0), | |
542 | /* device is using DMA for read/write */ | |
543 | IDE_DFLAG_USING_DMA = (1 << 1), | |
544 | /* okay to unmask other IRQs */ | |
545 | IDE_DFLAG_UNMASK = (1 << 2), | |
546 | /* don't attempt flushes */ | |
547 | IDE_DFLAG_NOFLUSH = (1 << 3), | |
548 | /* DSC overlap */ | |
549 | IDE_DFLAG_DSC_OVERLAP = (1 << 4), | |
550 | /* give potential excess bandwidth */ | |
551 | IDE_DFLAG_NICE1 = (1 << 5), | |
552 | /* device is physically present */ | |
553 | IDE_DFLAG_PRESENT = (1 << 6), | |
554 | /* device ejected hint */ | |
555 | IDE_DFLAG_DEAD = (1 << 7), | |
556 | /* id read from device (synthetic if not set) */ | |
557 | IDE_DFLAG_ID_READ = (1 << 8), | |
558 | IDE_DFLAG_NOPROBE = (1 << 9), | |
559 | /* need to do check_media_change() */ | |
560 | IDE_DFLAG_REMOVABLE = (1 << 10), | |
561 | /* needed for removable devices */ | |
562 | IDE_DFLAG_ATTACH = (1 << 11), | |
563 | IDE_DFLAG_FORCED_GEOM = (1 << 12), | |
564 | /* disallow setting unmask bit */ | |
565 | IDE_DFLAG_NO_UNMASK = (1 << 13), | |
566 | /* disallow enabling 32-bit I/O */ | |
567 | IDE_DFLAG_NO_IO_32BIT = (1 << 14), | |
568 | /* for removable only: door lock/unlock works */ | |
569 | IDE_DFLAG_DOORLOCKING = (1 << 15), | |
570 | /* disallow DMA */ | |
571 | IDE_DFLAG_NODMA = (1 << 16), | |
572 | /* powermanagment told us not to do anything, so sleep nicely */ | |
573 | IDE_DFLAG_BLOCKED = (1 << 17), | |
574 | /* ide-scsi emulation */ | |
575 | IDE_DFLAG_SCSI = (1 << 18), | |
576 | /* sleeping & sleep field valid */ | |
577 | IDE_DFLAG_SLEEPING = (1 << 19), | |
578 | IDE_DFLAG_POST_RESET = (1 << 20), | |
579 | IDE_DFLAG_UDMA33_WARNED = (1 << 21), | |
580 | IDE_DFLAG_LBA48 = (1 << 22), | |
581 | /* status of write cache */ | |
582 | IDE_DFLAG_WCACHE = (1 << 23), | |
583 | /* used for ignoring ATA_DF */ | |
584 | IDE_DFLAG_NOWERR = (1 << 24), | |
c3922048 BZ |
585 | /* retrying in PIO */ |
586 | IDE_DFLAG_DMA_PIO_RETRY = (1 << 25), | |
d1d76714 | 587 | IDE_DFLAG_LBA = (1 << 26), |
4abdc6ee EO |
588 | /* don't unload heads */ |
589 | IDE_DFLAG_NO_UNLOAD = (1 << 27), | |
590 | /* heads unloaded, please don't reset port */ | |
fe11edfa BZ |
591 | IDE_DFLAG_PARKED = (1 << 28), |
592 | IDE_DFLAG_MEDIA_CHANGED = (1 << 29), | |
da167876 BZ |
593 | /* write protect */ |
594 | IDE_DFLAG_WP = (1 << 30), | |
e0128628 | 595 | IDE_DFLAG_FORMAT_IN_PROGRESS = (1 << 31), |
97100fc8 BZ |
596 | }; |
597 | ||
d7c26ebb | 598 | struct ide_drive_s { |
1da177e4 LT |
599 | char name[4]; /* drive name, such as "hda" */ |
600 | char driver_req[10]; /* requests specific driver */ | |
601 | ||
165125e1 | 602 | struct request_queue *queue; /* request queue */ |
1da177e4 LT |
603 | |
604 | struct request *rq; /* current request */ | |
605 | struct ide_drive_s *next; /* circular list of hwgroup drives */ | |
1da177e4 | 606 | void *driver_data; /* extra driver data */ |
48fb2688 | 607 | u16 *id; /* identification info */ |
7662d046 | 608 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 609 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
92f1f8fd | 610 | const struct ide_proc_devset *settings; /* /proc/ide/ drive settings */ |
7662d046 | 611 | #endif |
1da177e4 LT |
612 | struct hwif_s *hwif; /* actually (ide_hwif_t *) */ |
613 | ||
806f80a6 BZ |
614 | const struct ide_disk_ops *disk_ops; |
615 | ||
97100fc8 BZ |
616 | unsigned long dev_flags; |
617 | ||
1da177e4 LT |
618 | unsigned long sleep; /* sleep until this time */ |
619 | unsigned long service_start; /* time we started last request */ | |
620 | unsigned long service_time; /* service time of last request */ | |
621 | unsigned long timeout; /* max time to wait for irq */ | |
622 | ||
623 | special_t special; /* special action flags */ | |
1da177e4 | 624 | |
7f612f27 | 625 | u8 select; /* basic drive/head select reg value */ |
1da177e4 | 626 | u8 retry_pio; /* retrying dma capable host in pio */ |
1da177e4 | 627 | u8 waiting_for_dma; /* dma currently in progress */ |
0a9b6f88 | 628 | u8 dma; /* atapi dma flag */ |
1da177e4 | 629 | |
1da177e4 LT |
630 | u8 quirk_list; /* considered quirky, set for a specific host */ |
631 | u8 init_speed; /* transfer rate set at boot */ | |
1da177e4 | 632 | u8 current_speed; /* current transfer rate set */ |
513daadd | 633 | u8 desired_speed; /* desired transfer rate set */ |
1da177e4 | 634 | u8 dn; /* now wide spread use */ |
1da177e4 LT |
635 | u8 acoustic; /* acoustic management */ |
636 | u8 media; /* disk, cdrom, tape, floppy, ... */ | |
1da177e4 LT |
637 | u8 ready_stat; /* min status value for drive ready */ |
638 | u8 mult_count; /* current multiple sector setting */ | |
639 | u8 mult_req; /* requested multiple sector setting */ | |
1da177e4 | 640 | u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ |
3a7d2484 | 641 | u8 bad_wstat; /* used for ignoring ATA_DF */ |
1da177e4 LT |
642 | u8 head; /* "real" number of heads */ |
643 | u8 sect; /* "real" sectors per track */ | |
644 | u8 bios_head; /* BIOS/fdisk/LILO number of heads */ | |
645 | u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ | |
646 | ||
baf08f0b BZ |
647 | /* delay this long before sending packet command */ |
648 | u8 pc_delay; | |
649 | ||
1da177e4 LT |
650 | unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ |
651 | unsigned int cyl; /* "real" number of cyls */ | |
26bcb879 | 652 | unsigned int drive_data; /* used by set_pio_mode/selectproc */ |
1da177e4 LT |
653 | unsigned int failures; /* current failure count */ |
654 | unsigned int max_failures; /* maximum allowed failure count */ | |
dbe217af | 655 | u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */ |
1da177e4 LT |
656 | |
657 | u64 capacity64; /* total number of sectors */ | |
658 | ||
659 | int lun; /* logical unit */ | |
660 | int crc_count; /* crc counter to reduce drive speed */ | |
b22b2ca4 BP |
661 | |
662 | unsigned long debug_mask; /* debugging levels switch */ | |
663 | ||
e3a59b4d HR |
664 | #ifdef CONFIG_BLK_DEV_IDEACPI |
665 | struct ide_acpi_drive_link *acpidata; | |
666 | #endif | |
1da177e4 LT |
667 | struct list_head list; |
668 | struct device gendev; | |
f36d4024 | 669 | struct completion gendev_rel_comp; /* to deal with device release() */ |
d7c26ebb | 670 | |
2b9efba4 BZ |
671 | /* current packet command */ |
672 | struct ide_atapi_pc *pc; | |
673 | ||
d7c26ebb | 674 | /* callback for packet commands */ |
b14c7212 | 675 | void (*pc_callback)(struct ide_drive_s *, int); |
3b8ac539 | 676 | |
85e39035 BZ |
677 | void (*pc_update_buffers)(struct ide_drive_s *, struct ide_atapi_pc *); |
678 | int (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *, | |
679 | unsigned int, int); | |
680 | ||
3b8ac539 | 681 | unsigned long atapi_flags; |
67c56364 BZ |
682 | |
683 | struct ide_atapi_pc request_sense_pc; | |
684 | struct request request_sense_rq; | |
d7c26ebb BP |
685 | }; |
686 | ||
687 | typedef struct ide_drive_s ide_drive_t; | |
1da177e4 | 688 | |
5aeddf90 BP |
689 | #define to_ide_device(dev) container_of(dev, ide_drive_t, gendev) |
690 | ||
691 | #define to_ide_drv(obj, cont_type) \ | |
692 | container_of(obj, struct cont_type, kref) | |
693 | ||
694 | #define ide_drv_g(disk, cont_type) \ | |
695 | container_of((disk)->private_data, struct cont_type, driver) | |
8604affd | 696 | |
039788e1 | 697 | struct ide_port_info; |
1da177e4 | 698 | |
374e042c BZ |
699 | struct ide_tp_ops { |
700 | void (*exec_command)(struct hwif_s *, u8); | |
701 | u8 (*read_status)(struct hwif_s *); | |
702 | u8 (*read_altstatus)(struct hwif_s *); | |
703 | u8 (*read_sff_dma_status)(struct hwif_s *); | |
704 | ||
705 | void (*set_irq)(struct hwif_s *, int); | |
706 | ||
707 | void (*tf_load)(ide_drive_t *, struct ide_task_s *); | |
708 | void (*tf_read)(ide_drive_t *, struct ide_task_s *); | |
709 | ||
710 | void (*input_data)(ide_drive_t *, struct request *, void *, | |
711 | unsigned int); | |
712 | void (*output_data)(ide_drive_t *, struct request *, void *, | |
713 | unsigned int); | |
714 | }; | |
715 | ||
716 | extern const struct ide_tp_ops default_tp_ops; | |
717 | ||
39b986a6 BZ |
718 | /** |
719 | * struct ide_port_ops - IDE port operations | |
720 | * | |
721 | * @init_dev: host specific initialization of a device | |
722 | * @set_pio_mode: routine to program host for PIO mode | |
723 | * @set_dma_mode: routine to program host for DMA mode | |
724 | * @selectproc: tweaks hardware to select drive | |
725 | * @reset_poll: chipset polling based on hba specifics | |
726 | * @pre_reset: chipset specific changes to default for device-hba resets | |
727 | * @resetproc: routine to reset controller after a disk reset | |
728 | * @maskproc: special host masking for drive selection | |
729 | * @quirkproc: check host's drive quirk list | |
bfa7d8e5 | 730 | * @clear_irq: clear IRQ |
39b986a6 BZ |
731 | * |
732 | * @mdma_filter: filter MDMA modes | |
733 | * @udma_filter: filter UDMA modes | |
734 | * | |
735 | * @cable_detect: detect cable type | |
736 | */ | |
ac95beed | 737 | struct ide_port_ops { |
e6d95bd1 | 738 | void (*init_dev)(ide_drive_t *); |
ac95beed | 739 | void (*set_pio_mode)(ide_drive_t *, const u8); |
ac95beed | 740 | void (*set_dma_mode)(ide_drive_t *, const u8); |
ac95beed | 741 | void (*selectproc)(ide_drive_t *); |
ac95beed | 742 | int (*reset_poll)(ide_drive_t *); |
ac95beed | 743 | void (*pre_reset)(ide_drive_t *); |
ac95beed | 744 | void (*resetproc)(ide_drive_t *); |
ac95beed | 745 | void (*maskproc)(ide_drive_t *, int); |
ac95beed | 746 | void (*quirkproc)(ide_drive_t *); |
bfa7d8e5 | 747 | void (*clear_irq)(ide_drive_t *); |
ac95beed BZ |
748 | |
749 | u8 (*mdma_filter)(ide_drive_t *); | |
750 | u8 (*udma_filter)(ide_drive_t *); | |
751 | ||
752 | u8 (*cable_detect)(struct hwif_s *); | |
753 | }; | |
754 | ||
5e37bdc0 BZ |
755 | struct ide_dma_ops { |
756 | void (*dma_host_set)(struct ide_drive_s *, int); | |
757 | int (*dma_setup)(struct ide_drive_s *); | |
758 | void (*dma_exec_cmd)(struct ide_drive_s *, u8); | |
759 | void (*dma_start)(struct ide_drive_s *); | |
760 | int (*dma_end)(struct ide_drive_s *); | |
761 | int (*dma_test_irq)(struct ide_drive_s *); | |
762 | void (*dma_lost_irq)(struct ide_drive_s *); | |
763 | void (*dma_timeout)(struct ide_drive_s *); | |
764 | }; | |
765 | ||
08da591e BZ |
766 | struct ide_host; |
767 | ||
1da177e4 LT |
768 | typedef struct hwif_s { |
769 | struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ | |
770 | struct hwif_s *mate; /* other hwif from same PCI chip */ | |
771 | struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */ | |
772 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ | |
773 | ||
08da591e BZ |
774 | struct ide_host *host; |
775 | ||
1da177e4 LT |
776 | char name[6]; /* name of interface, eg. "ide0" */ |
777 | ||
4c3032d8 BZ |
778 | struct ide_io_ports io_ports; |
779 | ||
1da177e4 | 780 | unsigned long sata_scr[SATA_NR_PORTS]; |
1da177e4 | 781 | |
1da177e4 LT |
782 | ide_drive_t drives[MAX_DRIVES]; /* drive info */ |
783 | ||
784 | u8 major; /* our major number */ | |
785 | u8 index; /* 0 for ide0; 1 for ide1; ... */ | |
786 | u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ | |
1da177e4 | 787 | |
e95d9c6b | 788 | u32 host_flags; |
6a824c92 | 789 | |
4099d143 BZ |
790 | u8 pio_mask; |
791 | ||
1da177e4 LT |
792 | u8 ultra_mask; |
793 | u8 mwdma_mask; | |
794 | u8 swdma_mask; | |
795 | ||
49521f97 BZ |
796 | u8 cbl; /* cable type */ |
797 | ||
1da177e4 LT |
798 | hwif_chipset_t chipset; /* sub-module for tuning.. */ |
799 | ||
36501650 BZ |
800 | struct device *dev; |
801 | ||
18e181fe BZ |
802 | ide_ack_intr_t *ack_intr; |
803 | ||
1da177e4 LT |
804 | void (*rw_disk)(ide_drive_t *, struct request *); |
805 | ||
374e042c | 806 | const struct ide_tp_ops *tp_ops; |
ac95beed | 807 | const struct ide_port_ops *port_ops; |
f37afdac | 808 | const struct ide_dma_ops *dma_ops; |
bfa14b42 | 809 | |
1da177e4 LT |
810 | /* dma physical region descriptor table (cpu view) */ |
811 | unsigned int *dmatable_cpu; | |
812 | /* dma physical region descriptor table (dma view) */ | |
813 | dma_addr_t dmatable_dma; | |
2bbd57ca BZ |
814 | |
815 | /* maximum number of PRD table entries */ | |
816 | int prd_max_nents; | |
817 | /* PRD entry size in bytes */ | |
818 | int prd_ent_size; | |
819 | ||
1da177e4 LT |
820 | /* Scatter-gather list used to build the above */ |
821 | struct scatterlist *sg_table; | |
822 | int sg_max_nents; /* Maximum number of entries in it */ | |
823 | int sg_nents; /* Current number of entries in it */ | |
824 | int sg_dma_direction; /* dma transfer direction */ | |
825 | ||
826 | /* data phase of the active command (currently only valid for PIO/DMA) */ | |
827 | int data_phase; | |
828 | ||
d6ff9f64 BZ |
829 | struct ide_task_s task; /* current command */ |
830 | ||
1da177e4 LT |
831 | unsigned int nsect; |
832 | unsigned int nleft; | |
55c16a70 | 833 | struct scatterlist *cursg; |
1da177e4 LT |
834 | unsigned int cursg_ofs; |
835 | ||
1da177e4 LT |
836 | int rqsize; /* max sectors per request */ |
837 | int irq; /* our irq number */ | |
838 | ||
1da177e4 | 839 | unsigned long dma_base; /* base addr for dma ports */ |
1da177e4 | 840 | |
1da177e4 LT |
841 | unsigned long config_data; /* for use by chipset-specific code */ |
842 | unsigned long select_data; /* for use by chipset-specific code */ | |
843 | ||
020e322d SS |
844 | unsigned long extra_base; /* extra addr for dma ports */ |
845 | unsigned extra_ports; /* number of extra dma ports */ | |
846 | ||
1da177e4 | 847 | unsigned present : 1; /* this interface exists */ |
1da177e4 LT |
848 | unsigned serialized : 1; /* serialized all channel operation */ |
849 | unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */ | |
1da177e4 LT |
850 | unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ |
851 | ||
f74c9141 BZ |
852 | struct device gendev; |
853 | struct device *portdev; | |
854 | ||
f36d4024 | 855 | struct completion gendev_rel_comp; /* To deal with device release() */ |
1da177e4 LT |
856 | |
857 | void *hwif_data; /* extra hwif data */ | |
858 | ||
e3a59b4d HR |
859 | #ifdef CONFIG_BLK_DEV_IDEACPI |
860 | struct ide_acpi_hwif_link *acpidata; | |
861 | #endif | |
22fc6ecc | 862 | } ____cacheline_internodealigned_in_smp ide_hwif_t; |
1da177e4 | 863 | |
a36223b0 BZ |
864 | #define MAX_HOST_PORTS 4 |
865 | ||
48c3c107 | 866 | struct ide_host { |
a36223b0 | 867 | ide_hwif_t *ports[MAX_HOST_PORTS]; |
48c3c107 | 868 | unsigned int n_ports; |
6cdf6eb3 | 869 | struct device *dev[2]; |
feb22b7f | 870 | unsigned int (*init_chipset)(struct pci_dev *); |
ef0b0427 | 871 | unsigned long host_flags; |
6cdf6eb3 | 872 | void *host_priv; |
48c3c107 BZ |
873 | }; |
874 | ||
1da177e4 LT |
875 | /* |
876 | * internal ide interrupt handler type | |
877 | */ | |
1da177e4 LT |
878 | typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); |
879 | typedef int (ide_expiry_t)(ide_drive_t *); | |
880 | ||
0eea6458 | 881 | /* used by ide-cd, ide-floppy, etc. */ |
9567b349 | 882 | typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned); |
0eea6458 | 883 | |
1da177e4 LT |
884 | typedef struct hwgroup_s { |
885 | /* irq handler, if active */ | |
886 | ide_startstop_t (*handler)(ide_drive_t *); | |
a6fbb1c8 | 887 | |
1da177e4 LT |
888 | /* BOOL: protects all fields below */ |
889 | volatile int busy; | |
890 | /* BOOL: wake us up on timer expiry */ | |
891 | unsigned int sleeping : 1; | |
892 | /* BOOL: polling active & poll_timeout field valid */ | |
893 | unsigned int polling : 1; | |
913759ac | 894 | |
1da177e4 LT |
895 | /* current drive */ |
896 | ide_drive_t *drive; | |
897 | /* ptr to current hwif in linked-list */ | |
898 | ide_hwif_t *hwif; | |
899 | ||
1da177e4 LT |
900 | /* current request */ |
901 | struct request *rq; | |
a6fbb1c8 | 902 | |
1da177e4 LT |
903 | /* failsafe timer */ |
904 | struct timer_list timer; | |
1da177e4 LT |
905 | /* timeout value during long polls */ |
906 | unsigned long poll_timeout; | |
907 | /* queried upon timeouts */ | |
908 | int (*expiry)(ide_drive_t *); | |
a6fbb1c8 | 909 | |
23450319 SS |
910 | int req_gen; |
911 | int req_gen_timer; | |
1da177e4 LT |
912 | } ide_hwgroup_t; |
913 | ||
7662d046 BZ |
914 | typedef struct ide_driver_s ide_driver_t; |
915 | ||
f9383c42 | 916 | extern struct mutex ide_setting_mtx; |
1da177e4 | 917 | |
92f1f8fd EO |
918 | /* |
919 | * configurable drive settings | |
920 | */ | |
921 | ||
922 | #define DS_SYNC (1 << 0) | |
923 | ||
924 | struct ide_devset { | |
925 | int (*get)(ide_drive_t *); | |
926 | int (*set)(ide_drive_t *, int); | |
927 | unsigned int flags; | |
928 | }; | |
929 | ||
930 | #define __DEVSET(_flags, _get, _set) { \ | |
931 | .flags = _flags, \ | |
932 | .get = _get, \ | |
933 | .set = _set, \ | |
934 | } | |
7662d046 | 935 | |
8185d5aa | 936 | #define ide_devset_get(name, field) \ |
92f1f8fd | 937 | static int get_##name(ide_drive_t *drive) \ |
8185d5aa BZ |
938 | { \ |
939 | return drive->field; \ | |
940 | } | |
941 | ||
942 | #define ide_devset_set(name, field) \ | |
92f1f8fd | 943 | static int set_##name(ide_drive_t *drive, int arg) \ |
8185d5aa BZ |
944 | { \ |
945 | drive->field = arg; \ | |
946 | return 0; \ | |
947 | } | |
948 | ||
97100fc8 BZ |
949 | #define ide_devset_get_flag(name, flag) \ |
950 | static int get_##name(ide_drive_t *drive) \ | |
951 | { \ | |
952 | return !!(drive->dev_flags & flag); \ | |
953 | } | |
954 | ||
955 | #define ide_devset_set_flag(name, flag) \ | |
956 | static int set_##name(ide_drive_t *drive, int arg) \ | |
957 | { \ | |
958 | if (arg) \ | |
959 | drive->dev_flags |= flag; \ | |
960 | else \ | |
961 | drive->dev_flags &= ~flag; \ | |
962 | return 0; \ | |
963 | } | |
964 | ||
92f1f8fd EO |
965 | #define __IDE_DEVSET(_name, _flags, _get, _set) \ |
966 | const struct ide_devset ide_devset_##_name = \ | |
967 | __DEVSET(_flags, _get, _set) | |
968 | ||
969 | #define IDE_DEVSET(_name, _flags, _get, _set) \ | |
970 | static __IDE_DEVSET(_name, _flags, _get, _set) | |
971 | ||
972 | #define ide_devset_rw(_name, _func) \ | |
973 | IDE_DEVSET(_name, 0, get_##_func, set_##_func) | |
974 | ||
975 | #define ide_devset_w(_name, _func) \ | |
976 | IDE_DEVSET(_name, 0, NULL, set_##_func) | |
977 | ||
f8790489 BZ |
978 | #define ide_ext_devset_rw(_name, _func) \ |
979 | __IDE_DEVSET(_name, 0, get_##_func, set_##_func) | |
980 | ||
981 | #define ide_ext_devset_rw_sync(_name, _func) \ | |
982 | __IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func) | |
92f1f8fd EO |
983 | |
984 | #define ide_decl_devset(_name) \ | |
985 | extern const struct ide_devset ide_devset_##_name | |
986 | ||
987 | ide_decl_devset(io_32bit); | |
988 | ide_decl_devset(keepsettings); | |
989 | ide_decl_devset(pio_mode); | |
990 | ide_decl_devset(unmaskirq); | |
991 | ide_decl_devset(using_dma); | |
992 | ||
7662d046 | 993 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 994 | /* |
92f1f8fd | 995 | * /proc/ide interface |
1da177e4 LT |
996 | */ |
997 | ||
92f1f8fd EO |
998 | #define ide_devset_rw_field(_name, _field) \ |
999 | ide_devset_get(_name, _field); \ | |
1000 | ide_devset_set(_name, _field); \ | |
1001 | IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) | |
1002 | ||
97100fc8 BZ |
1003 | #define ide_devset_rw_flag(_name, _field) \ |
1004 | ide_devset_get_flag(_name, _field); \ | |
1005 | ide_devset_set_flag(_name, _field); \ | |
1006 | IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) | |
1007 | ||
92f1f8fd EO |
1008 | struct ide_proc_devset { |
1009 | const char *name; | |
1010 | const struct ide_devset *setting; | |
1011 | int min, max; | |
1012 | int (*mulf)(ide_drive_t *); | |
1013 | int (*divf)(ide_drive_t *); | |
8185d5aa BZ |
1014 | }; |
1015 | ||
92f1f8fd EO |
1016 | #define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \ |
1017 | .name = __stringify(_name), \ | |
1018 | .setting = &ide_devset_##_name, \ | |
1019 | .min = _min, \ | |
1020 | .max = _max, \ | |
1021 | .mulf = _mulf, \ | |
1022 | .divf = _divf, \ | |
8185d5aa BZ |
1023 | } |
1024 | ||
92f1f8fd EO |
1025 | #define IDE_PROC_DEVSET(_name, _min, _max) \ |
1026 | __IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL) | |
8185d5aa | 1027 | |
1da177e4 LT |
1028 | typedef struct { |
1029 | const char *name; | |
1030 | mode_t mode; | |
1031 | read_proc_t *read_proc; | |
1032 | write_proc_t *write_proc; | |
1033 | } ide_proc_entry_t; | |
1034 | ||
ecfd80e4 BZ |
1035 | void proc_ide_create(void); |
1036 | void proc_ide_destroy(void); | |
5cbf79cd | 1037 | void ide_proc_register_port(ide_hwif_t *); |
d9270a3f | 1038 | void ide_proc_port_register_devices(ide_hwif_t *); |
5b0c4b30 | 1039 | void ide_proc_unregister_device(ide_drive_t *); |
5cbf79cd | 1040 | void ide_proc_unregister_port(ide_hwif_t *); |
7662d046 BZ |
1041 | void ide_proc_register_driver(ide_drive_t *, ide_driver_t *); |
1042 | void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *); | |
1043 | ||
1da177e4 LT |
1044 | read_proc_t proc_ide_read_capacity; |
1045 | read_proc_t proc_ide_read_geometry; | |
1046 | ||
1da177e4 LT |
1047 | /* |
1048 | * Standard exit stuff: | |
1049 | */ | |
1050 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) \ | |
1051 | { \ | |
1052 | len -= off; \ | |
1053 | if (len < count) { \ | |
1054 | *eof = 1; \ | |
1055 | if (len <= 0) \ | |
1056 | return 0; \ | |
1057 | } else \ | |
1058 | len = count; \ | |
1059 | *start = page + off; \ | |
1060 | return len; \ | |
1061 | } | |
1062 | #else | |
ecfd80e4 BZ |
1063 | static inline void proc_ide_create(void) { ; } |
1064 | static inline void proc_ide_destroy(void) { ; } | |
5cbf79cd | 1065 | static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; } |
d9270a3f | 1066 | static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; } |
5b0c4b30 | 1067 | static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; } |
5cbf79cd | 1068 | static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; } |
7662d046 BZ |
1069 | static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } |
1070 | static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } | |
1da177e4 LT |
1071 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0; |
1072 | #endif | |
1073 | ||
e1c7c464 BP |
1074 | enum { |
1075 | /* enter/exit functions */ | |
1076 | IDE_DBG_FUNC = (1 << 0), | |
1077 | /* sense key/asc handling */ | |
1078 | IDE_DBG_SENSE = (1 << 1), | |
1079 | /* packet commands handling */ | |
1080 | IDE_DBG_PC = (1 << 2), | |
1081 | /* request handling */ | |
1082 | IDE_DBG_RQ = (1 << 3), | |
1083 | /* driver probing/setup */ | |
1084 | IDE_DBG_PROBE = (1 << 4), | |
1085 | }; | |
1086 | ||
1087 | /* DRV_NAME has to be defined in the driver before using the macro below */ | |
1088 | #define __ide_debug_log(lvl, fmt, args...) \ | |
1089 | { \ | |
1090 | if (unlikely(drive->debug_mask & lvl)) \ | |
1091 | printk(KERN_INFO DRV_NAME ": " fmt, ## args); \ | |
1092 | } | |
1093 | ||
1da177e4 | 1094 | /* |
0d346ba0 | 1095 | * Power Management state machine (rq->pm->pm_step). |
1da177e4 | 1096 | * |
0d346ba0 | 1097 | * For each step, the core calls ide_start_power_step() first. |
1da177e4 LT |
1098 | * This can return: |
1099 | * - ide_stopped : In this case, the core calls us back again unless | |
1100 | * step have been set to ide_power_state_completed. | |
1101 | * - ide_started : In this case, the channel is left busy until an | |
1102 | * async event (interrupt) occurs. | |
0d346ba0 | 1103 | * Typically, ide_start_power_step() will issue a taskfile request with |
1da177e4 LT |
1104 | * do_rw_taskfile(). |
1105 | * | |
0d346ba0 | 1106 | * Upon reception of the interrupt, the core will call ide_complete_power_step() |
1da177e4 LT |
1107 | * with the error code if any. This routine should update the step value |
1108 | * and return. It should not start a new request. The core will call | |
0d346ba0 BZ |
1109 | * ide_start_power_step() for the new step value, unless step have been |
1110 | * set to IDE_PM_COMPLETED. | |
1da177e4 | 1111 | */ |
1da177e4 | 1112 | enum { |
0d346ba0 BZ |
1113 | IDE_PM_START_SUSPEND, |
1114 | IDE_PM_FLUSH_CACHE = IDE_PM_START_SUSPEND, | |
1115 | IDE_PM_STANDBY, | |
1116 | ||
1117 | IDE_PM_START_RESUME, | |
1118 | IDE_PM_RESTORE_PIO = IDE_PM_START_RESUME, | |
1119 | IDE_PM_IDLE, | |
1120 | IDE_PM_RESTORE_DMA, | |
1121 | ||
1122 | IDE_PM_COMPLETED, | |
1da177e4 LT |
1123 | }; |
1124 | ||
1125 | /* | |
1126 | * Subdrivers support. | |
4ef3b8f4 LR |
1127 | * |
1128 | * The gendriver.owner field should be set to the module owner of this driver. | |
1129 | * The gendriver.name field should be set to the name of this driver | |
1da177e4 | 1130 | */ |
7662d046 | 1131 | struct ide_driver_s { |
1da177e4 | 1132 | const char *version; |
1da177e4 LT |
1133 | ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); |
1134 | int (*end_request)(ide_drive_t *, int, int); | |
1135 | ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8); | |
1da177e4 | 1136 | struct device_driver gen_driver; |
4031bbe4 RK |
1137 | int (*probe)(ide_drive_t *); |
1138 | void (*remove)(ide_drive_t *); | |
0d2157f7 | 1139 | void (*resume)(ide_drive_t *); |
4031bbe4 | 1140 | void (*shutdown)(ide_drive_t *); |
7662d046 | 1141 | #ifdef CONFIG_IDE_PROC_FS |
79cb3803 BZ |
1142 | ide_proc_entry_t * (*proc_entries)(ide_drive_t *); |
1143 | const struct ide_proc_devset * (*proc_devsets)(ide_drive_t *); | |
7662d046 BZ |
1144 | #endif |
1145 | }; | |
1da177e4 | 1146 | |
4031bbe4 RK |
1147 | #define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver) |
1148 | ||
08da591e BZ |
1149 | int ide_device_get(ide_drive_t *); |
1150 | void ide_device_put(ide_drive_t *); | |
1151 | ||
aa768773 BZ |
1152 | struct ide_ioctl_devset { |
1153 | unsigned int get_ioctl; | |
1154 | unsigned int set_ioctl; | |
92f1f8fd | 1155 | const struct ide_devset *setting; |
aa768773 BZ |
1156 | }; |
1157 | ||
1158 | int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int, | |
1159 | unsigned long, const struct ide_ioctl_devset *); | |
1160 | ||
1bddd9e6 | 1161 | int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned long); |
1da177e4 | 1162 | |
ebae41a5 BZ |
1163 | extern int ide_vlb_clk; |
1164 | extern int ide_pci_clk; | |
1165 | ||
1da177e4 | 1166 | extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs); |
dbe217af AC |
1167 | int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, |
1168 | int uptodate, int nr_sectors); | |
1da177e4 | 1169 | |
1da177e4 LT |
1170 | extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry); |
1171 | ||
cd2a2d96 BZ |
1172 | void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int, |
1173 | ide_expiry_t *); | |
1da177e4 | 1174 | |
1fc14258 BZ |
1175 | void ide_execute_pkt_cmd(ide_drive_t *); |
1176 | ||
9f87abe8 BZ |
1177 | void ide_pad_transfer(ide_drive_t *, int, int); |
1178 | ||
1da177e4 LT |
1179 | ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8); |
1180 | ||
1da177e4 LT |
1181 | ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat); |
1182 | ||
4dde4492 | 1183 | void ide_fix_driveid(u16 *); |
01745112 | 1184 | |
1da177e4 LT |
1185 | extern void ide_fixstring(u8 *, const int, const int); |
1186 | ||
b163f46d BZ |
1187 | int ide_busy_sleep(ide_hwif_t *, unsigned long, int); |
1188 | ||
74af21cf | 1189 | int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); |
1da177e4 | 1190 | |
1da177e4 LT |
1191 | extern ide_startstop_t ide_do_reset (ide_drive_t *); |
1192 | ||
92f1f8fd EO |
1193 | extern int ide_devset_execute(ide_drive_t *drive, |
1194 | const struct ide_devset *setting, int arg); | |
1195 | ||
63f5abb0 | 1196 | extern void ide_do_drive_cmd(ide_drive_t *, struct request *); |
1da177e4 | 1197 | |
1da177e4 LT |
1198 | extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); |
1199 | ||
089c5c7e | 1200 | void ide_tf_dump(const char *, struct ide_taskfile *); |
1da177e4 | 1201 | |
374e042c BZ |
1202 | void ide_exec_command(ide_hwif_t *, u8); |
1203 | u8 ide_read_status(ide_hwif_t *); | |
1204 | u8 ide_read_altstatus(ide_hwif_t *); | |
1205 | u8 ide_read_sff_dma_status(ide_hwif_t *); | |
1206 | ||
1207 | void ide_set_irq(ide_hwif_t *, int); | |
1208 | ||
1209 | void ide_tf_load(ide_drive_t *, ide_task_t *); | |
1210 | void ide_tf_read(ide_drive_t *, ide_task_t *); | |
1211 | ||
1212 | void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int); | |
1213 | void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int); | |
1214 | ||
acaa0f5f BZ |
1215 | int ide_io_buffers(ide_drive_t *, struct ide_atapi_pc *, unsigned int, int); |
1216 | ||
1da177e4 | 1217 | extern void SELECT_DRIVE(ide_drive_t *); |
ed4af48f | 1218 | void SELECT_MASK(ide_drive_t *, int); |
1da177e4 | 1219 | |
92eb4380 | 1220 | u8 ide_read_error(ide_drive_t *); |
1823649b | 1221 | void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); |
92eb4380 | 1222 | |
1da177e4 | 1223 | extern int drive_is_ready(ide_drive_t *); |
1da177e4 | 1224 | |
2fc57388 BZ |
1225 | void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); |
1226 | ||
51509eec BZ |
1227 | int ide_check_atapi_device(ide_drive_t *, const char *); |
1228 | ||
7bf7420a BZ |
1229 | void ide_init_pc(struct ide_atapi_pc *); |
1230 | ||
4abdc6ee EO |
1231 | /* Disk head parking */ |
1232 | extern wait_queue_head_t ide_park_wq; | |
1233 | ssize_t ide_park_show(struct device *dev, struct device_attribute *attr, | |
1234 | char *buf); | |
1235 | ssize_t ide_park_store(struct device *dev, struct device_attribute *attr, | |
1236 | const char *buf, size_t len); | |
1237 | ||
7645c151 BZ |
1238 | /* |
1239 | * Special requests for ide-tape block device strategy routine. | |
1240 | * | |
1241 | * In order to service a character device command, we add special requests to | |
1242 | * the tail of our block device request queue and wait for their completion. | |
1243 | */ | |
1244 | enum { | |
1245 | REQ_IDETAPE_PC1 = (1 << 0), /* packet command (first stage) */ | |
1246 | REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */ | |
1247 | REQ_IDETAPE_READ = (1 << 2), | |
1248 | REQ_IDETAPE_WRITE = (1 << 3), | |
1249 | }; | |
1250 | ||
2ac07d92 | 1251 | int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *); |
7645c151 | 1252 | |
de699ad5 | 1253 | int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *); |
0c8a6c7a | 1254 | int ide_do_start_stop(ide_drive_t *, struct gendisk *, int); |
0578042d | 1255 | int ide_set_media_lock(ide_drive_t *, struct gendisk *, int); |
6b0da28b BZ |
1256 | void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *); |
1257 | void ide_retry_pc(ide_drive_t *, struct gendisk *); | |
0578042d | 1258 | |
844b9468 BZ |
1259 | static inline unsigned long ide_scsi_get_timeout(struct ide_atapi_pc *pc) |
1260 | { | |
1261 | return max_t(unsigned long, WAIT_CMD, pc->timeout - jiffies); | |
1262 | } | |
1263 | ||
1264 | int ide_scsi_expiry(ide_drive_t *); | |
1265 | ||
baf08f0b | 1266 | ide_startstop_t ide_issue_pc(ide_drive_t *, unsigned int, ide_expiry_t *); |
594c16d8 | 1267 | |
f6e29e35 | 1268 | ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); |
1da177e4 | 1269 | |
4d7a984b TH |
1270 | void task_end_request(ide_drive_t *, struct request *, u8); |
1271 | ||
ac026ff2 | 1272 | int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16); |
9a3c49be BZ |
1273 | int ide_no_data_taskfile(ide_drive_t *, ide_task_t *); |
1274 | ||
1da177e4 | 1275 | int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long); |
1da177e4 | 1276 | |
1da177e4 | 1277 | extern int ide_driveid_update(ide_drive_t *); |
1da177e4 LT |
1278 | extern int ide_config_drive_speed(ide_drive_t *, u8); |
1279 | extern u8 eighty_ninty_three (ide_drive_t *); | |
1da177e4 LT |
1280 | extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); |
1281 | ||
1282 | extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); | |
1283 | ||
1da177e4 LT |
1284 | extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); |
1285 | ||
1da177e4 | 1286 | extern void ide_timer_expiry(unsigned long); |
7d12e780 | 1287 | extern irqreturn_t ide_intr(int irq, void *dev_id); |
165125e1 | 1288 | extern void do_ide_request(struct request_queue *); |
1da177e4 LT |
1289 | |
1290 | void ide_init_disk(struct gendisk *, ide_drive_t *); | |
1291 | ||
6d208b39 | 1292 | #ifdef CONFIG_IDEPCI_PCIBUS_ORDER |
725522b5 GKH |
1293 | extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); |
1294 | #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME) | |
6d208b39 BZ |
1295 | #else |
1296 | #define ide_pci_register_driver(d) pci_register_driver(d) | |
1297 | #endif | |
1298 | ||
6636487e BZ |
1299 | static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev) |
1300 | { | |
1301 | if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) | |
1302 | return 1; | |
1303 | return 0; | |
1304 | } | |
1305 | ||
c97c6aca | 1306 | void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, |
48c3c107 | 1307 | hw_regs_t *, hw_regs_t **); |
85620436 | 1308 | void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); |
1da177e4 | 1309 | |
8e882ba1 | 1310 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
b123f56e BZ |
1311 | int ide_pci_set_master(struct pci_dev *, const char *); |
1312 | unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); | |
ebb00fb5 | 1313 | int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *); |
b123f56e | 1314 | int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); |
c413b9b9 | 1315 | #else |
b123f56e BZ |
1316 | static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, |
1317 | const struct ide_port_info *d) | |
1318 | { | |
1319 | return -EINVAL; | |
1320 | } | |
c413b9b9 BZ |
1321 | #endif |
1322 | ||
1da177e4 LT |
1323 | typedef struct ide_pci_enablebit_s { |
1324 | u8 reg; /* byte pci reg holding the enable-bit */ | |
1325 | u8 mask; /* mask to isolate the enable-bit */ | |
1326 | u8 val; /* value of masked reg when "enabled" */ | |
1327 | } ide_pci_enablebit_t; | |
1328 | ||
1329 | enum { | |
1330 | /* Uses ISA control ports not PCI ones. */ | |
a5d8c5c8 | 1331 | IDE_HFLAG_ISA_PORTS = (1 << 0), |
6a824c92 | 1332 | /* single port device */ |
a5d8c5c8 | 1333 | IDE_HFLAG_SINGLE = (1 << 1), |
6a824c92 BZ |
1334 | /* don't use legacy PIO blacklist */ |
1335 | IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2), | |
e277f91f BZ |
1336 | /* set for the second port of QD65xx */ |
1337 | IDE_HFLAG_QD_2ND_PORT = (1 << 3), | |
26bcb879 BZ |
1338 | /* use PIO8/9 for prefetch off/on */ |
1339 | IDE_HFLAG_ABUSE_PREFETCH = (1 << 4), | |
1340 | /* use PIO6/7 for fast-devsel off/on */ | |
1341 | IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5), | |
1342 | /* use 100-102 and 200-202 PIO values to set DMA modes */ | |
1343 | IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6), | |
aedea591 BZ |
1344 | /* |
1345 | * keep DMA setting when programming PIO mode, may be used only | |
1346 | * for hosts which have separate PIO and DMA timings (ie. PMAC) | |
1347 | */ | |
1348 | IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7), | |
88b2b32b BZ |
1349 | /* program host for the transfer mode after programming device */ |
1350 | IDE_HFLAG_POST_SET_MODE = (1 << 8), | |
1351 | /* don't program host/device for the transfer mode ("smart" hosts) */ | |
1352 | IDE_HFLAG_NO_SET_MODE = (1 << 9), | |
0ae2e178 BZ |
1353 | /* trust BIOS for programming chipset/device for DMA */ |
1354 | IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10), | |
cafa027b BZ |
1355 | /* host is CS5510/CS5520 */ |
1356 | IDE_HFLAG_CS5520 = (1 << 11), | |
33c1002e BZ |
1357 | /* ATAPI DMA is unsupported */ |
1358 | IDE_HFLAG_NO_ATAPI_DMA = (1 << 12), | |
5e71d9c5 BZ |
1359 | /* set if host is a "non-bootable" controller */ |
1360 | IDE_HFLAG_NON_BOOTABLE = (1 << 13), | |
47b68788 BZ |
1361 | /* host doesn't support DMA */ |
1362 | IDE_HFLAG_NO_DMA = (1 << 14), | |
1363 | /* check if host is PCI IDE device before allowing DMA */ | |
1364 | IDE_HFLAG_NO_AUTODMA = (1 << 15), | |
c5dd43ec BZ |
1365 | /* host uses MMIO */ |
1366 | IDE_HFLAG_MMIO = (1 << 16), | |
238e4f14 BZ |
1367 | /* no LBA48 */ |
1368 | IDE_HFLAG_NO_LBA48 = (1 << 17), | |
1369 | /* no LBA48 DMA */ | |
1370 | IDE_HFLAG_NO_LBA48_DMA = (1 << 18), | |
ed67b923 BZ |
1371 | /* data FIFO is cleared by an error */ |
1372 | IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19), | |
1c51361a BZ |
1373 | /* serialize ports */ |
1374 | IDE_HFLAG_SERIALIZE = (1 << 20), | |
3985ee3b BZ |
1375 | /* use legacy IRQs */ |
1376 | IDE_HFLAG_LEGACY_IRQS = (1 << 21), | |
8acf28c0 BZ |
1377 | /* force use of legacy IRQs */ |
1378 | IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22), | |
272a3709 BZ |
1379 | /* limit LBA48 requests to 256 sectors */ |
1380 | IDE_HFLAG_RQSIZE_256 = (1 << 23), | |
caea7602 BZ |
1381 | /* use 32-bit I/O ops */ |
1382 | IDE_HFLAG_IO_32BIT = (1 << 24), | |
1383 | /* unmask IRQs */ | |
1384 | IDE_HFLAG_UNMASK_IRQS = (1 << 25), | |
6636487e | 1385 | IDE_HFLAG_BROKEN_ALTSTATUS = (1 << 26), |
1fd18905 BZ |
1386 | /* serialize ports if DMA is possible (for sl82c105) */ |
1387 | IDE_HFLAG_SERIALIZE_DMA = (1 << 27), | |
8ac2b42a BZ |
1388 | /* force host out of "simplex" mode */ |
1389 | IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28), | |
4166c199 BZ |
1390 | /* DSC overlap is unsupported */ |
1391 | IDE_HFLAG_NO_DSC = (1 << 29), | |
807b90d0 BZ |
1392 | /* never use 32-bit I/O ops */ |
1393 | IDE_HFLAG_NO_IO_32BIT = (1 << 30), | |
1394 | /* never unmask IRQs */ | |
1395 | IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31), | |
1da177e4 LT |
1396 | }; |
1397 | ||
7cab14a7 | 1398 | #ifdef CONFIG_BLK_DEV_OFFBOARD |
7cab14a7 | 1399 | # define IDE_HFLAG_OFF_BOARD 0 |
5e71d9c5 BZ |
1400 | #else |
1401 | # define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE | |
7cab14a7 BZ |
1402 | #endif |
1403 | ||
039788e1 | 1404 | struct ide_port_info { |
1da177e4 | 1405 | char *name; |
a326b02b | 1406 | unsigned int (*init_chipset)(struct pci_dev *); |
1da177e4 LT |
1407 | void (*init_iops)(ide_hwif_t *); |
1408 | void (*init_hwif)(ide_hwif_t *); | |
b123f56e BZ |
1409 | int (*init_dma)(ide_hwif_t *, |
1410 | const struct ide_port_info *); | |
ac95beed | 1411 | |
374e042c | 1412 | const struct ide_tp_ops *tp_ops; |
ac95beed | 1413 | const struct ide_port_ops *port_ops; |
f37afdac | 1414 | const struct ide_dma_ops *dma_ops; |
ac95beed | 1415 | |
1da177e4 | 1416 | ide_pci_enablebit_t enablebits[2]; |
528a572d | 1417 | hwif_chipset_t chipset; |
9ffcf364 | 1418 | u32 host_flags; |
4099d143 | 1419 | u8 pio_mask; |
5f8b6c34 BZ |
1420 | u8 swdma_mask; |
1421 | u8 mwdma_mask; | |
18137207 | 1422 | u8 udma_mask; |
039788e1 | 1423 | }; |
1da177e4 | 1424 | |
6cdf6eb3 BZ |
1425 | int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *); |
1426 | int ide_pci_init_two(struct pci_dev *, struct pci_dev *, | |
1427 | const struct ide_port_info *, void *); | |
ef0b0427 | 1428 | void ide_pci_remove(struct pci_dev *); |
1da177e4 | 1429 | |
feb22b7f BZ |
1430 | #ifdef CONFIG_PM |
1431 | int ide_pci_suspend(struct pci_dev *, pm_message_t); | |
1432 | int ide_pci_resume(struct pci_dev *); | |
1433 | #else | |
1434 | #define ide_pci_suspend NULL | |
1435 | #define ide_pci_resume NULL | |
1436 | #endif | |
1437 | ||
1da177e4 LT |
1438 | void ide_map_sg(ide_drive_t *, struct request *); |
1439 | void ide_init_sg_cmd(ide_drive_t *, struct request *); | |
1440 | ||
1441 | #define BAD_DMA_DRIVE 0 | |
1442 | #define GOOD_DMA_DRIVE 1 | |
1443 | ||
65e5f2e3 JC |
1444 | struct drive_list_entry { |
1445 | const char *id_model; | |
1446 | const char *id_firmware; | |
1447 | }; | |
1448 | ||
4dde4492 | 1449 | int ide_in_drive_list(u16 *, const struct drive_list_entry *); |
a5b7e70d BZ |
1450 | |
1451 | #ifdef CONFIG_BLK_DEV_IDEDMA | |
2dbe7e91 | 1452 | int ide_dma_good_drive(ide_drive_t *); |
1da177e4 | 1453 | int __ide_dma_bad_drive(ide_drive_t *); |
3ab7efe8 | 1454 | int ide_id_dma_bug(ide_drive_t *); |
7670df73 BZ |
1455 | |
1456 | u8 ide_find_dma_mode(ide_drive_t *, u8); | |
1457 | ||
1458 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) | |
1459 | { | |
1460 | return ide_find_dma_mode(drive, XFER_UDMA_6); | |
1461 | } | |
1462 | ||
4a546e04 | 1463 | void ide_dma_off_quietly(ide_drive_t *); |
7469aaf6 | 1464 | void ide_dma_off(ide_drive_t *); |
4a546e04 | 1465 | void ide_dma_on(ide_drive_t *); |
3608b5d7 | 1466 | int ide_set_dma(ide_drive_t *); |
578cfa0d | 1467 | void ide_check_dma_crc(ide_drive_t *); |
1da177e4 LT |
1468 | ide_startstop_t ide_dma_intr(ide_drive_t *); |
1469 | ||
2bbd57ca BZ |
1470 | int ide_allocate_dma_engine(ide_hwif_t *); |
1471 | void ide_release_dma_engine(ide_hwif_t *); | |
1472 | ||
062f9f02 BZ |
1473 | int ide_build_sglist(ide_drive_t *, struct request *); |
1474 | void ide_destroy_dmatable(ide_drive_t *); | |
1475 | ||
8e882ba1 | 1476 | #ifdef CONFIG_BLK_DEV_IDEDMA_SFF |
2dbe7e91 | 1477 | int config_drive_for_dma(ide_drive_t *); |
1da177e4 | 1478 | extern int ide_build_dmatable(ide_drive_t *, struct request *); |
15ce926a | 1479 | void ide_dma_host_set(ide_drive_t *, int); |
1da177e4 | 1480 | extern int ide_dma_setup(ide_drive_t *); |
f37afdac | 1481 | void ide_dma_exec_cmd(ide_drive_t *, u8); |
1da177e4 | 1482 | extern void ide_dma_start(ide_drive_t *); |
653bcf52 | 1483 | int ide_dma_end(ide_drive_t *); |
f37afdac | 1484 | int ide_dma_test_irq(ide_drive_t *); |
71fc9fcc | 1485 | extern const struct ide_dma_ops sff_dma_ops; |
2dbe7e91 BZ |
1486 | #else |
1487 | static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; } | |
8e882ba1 | 1488 | #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */ |
1da177e4 | 1489 | |
de23ec9c | 1490 | void ide_dma_lost_irq(ide_drive_t *); |
ffa15a69 | 1491 | void ide_dma_timeout(ide_drive_t *); |
de23ec9c | 1492 | |
1da177e4 | 1493 | #else |
3ab7efe8 | 1494 | static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; } |
7670df73 | 1495 | static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } |
2d5eaa6d | 1496 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } |
4a546e04 | 1497 | static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; } |
7469aaf6 | 1498 | static inline void ide_dma_off(ide_drive_t *drive) { ; } |
4a546e04 | 1499 | static inline void ide_dma_on(ide_drive_t *drive) { ; } |
1da177e4 | 1500 | static inline void ide_dma_verbose(ide_drive_t *drive) { ; } |
3608b5d7 | 1501 | static inline int ide_set_dma(ide_drive_t *drive) { return 1; } |
578cfa0d | 1502 | static inline void ide_check_dma_crc(ide_drive_t *drive) { ; } |
0d1bad21 | 1503 | static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; } |
2bbd57ca | 1504 | #endif /* CONFIG_BLK_DEV_IDEDMA */ |
1da177e4 | 1505 | |
e3a59b4d HR |
1506 | #ifdef CONFIG_BLK_DEV_IDEACPI |
1507 | extern int ide_acpi_exec_tfs(ide_drive_t *drive); | |
1508 | extern void ide_acpi_get_timing(ide_hwif_t *hwif); | |
1509 | extern void ide_acpi_push_timing(ide_hwif_t *hwif); | |
1510 | extern void ide_acpi_init(ide_hwif_t *hwif); | |
eafd88a3 | 1511 | void ide_acpi_port_init_devices(ide_hwif_t *); |
5e32132b | 1512 | extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); |
e3a59b4d HR |
1513 | #else |
1514 | static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } | |
1515 | static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } | |
1516 | static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } | |
1517 | static inline void ide_acpi_init(ide_hwif_t *hwif) { ; } | |
eafd88a3 | 1518 | static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; } |
5e32132b | 1519 | static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {} |
e3a59b4d HR |
1520 | #endif |
1521 | ||
fbd13088 | 1522 | void ide_remove_port_from_hwgroup(ide_hwif_t *); |
387750c3 | 1523 | void ide_unregister(ide_hwif_t *); |
1da177e4 LT |
1524 | |
1525 | void ide_register_region(struct gendisk *); | |
1526 | void ide_unregister_region(struct gendisk *); | |
1527 | ||
f01393e4 | 1528 | void ide_undecoded_slave(ide_drive_t *); |
1da177e4 | 1529 | |
9fd91d95 BZ |
1530 | void ide_port_apply_params(ide_hwif_t *); |
1531 | ||
48c3c107 | 1532 | struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); |
8a69580e | 1533 | void ide_host_free(struct ide_host *); |
48c3c107 BZ |
1534 | int ide_host_register(struct ide_host *, const struct ide_port_info *, |
1535 | hw_regs_t **); | |
6f904d01 BZ |
1536 | int ide_host_add(const struct ide_port_info *, hw_regs_t **, |
1537 | struct ide_host **); | |
48c3c107 | 1538 | void ide_host_remove(struct ide_host *); |
0bfeee7d | 1539 | int ide_legacy_device_add(const struct ide_port_info *, unsigned long); |
2dde7861 BZ |
1540 | void ide_port_unregister_devices(ide_hwif_t *); |
1541 | void ide_port_scan(ide_hwif_t *); | |
1da177e4 LT |
1542 | |
1543 | static inline void *ide_get_hwifdata (ide_hwif_t * hwif) | |
1544 | { | |
1545 | return hwif->hwif_data; | |
1546 | } | |
1547 | ||
1548 | static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) | |
1549 | { | |
1550 | hwif->hwif_data = data; | |
1551 | } | |
1552 | ||
3ab7efe8 | 1553 | const char *ide_xfer_verbose(u8 mode); |
1da177e4 LT |
1554 | extern void ide_toggle_bounce(ide_drive_t *drive, int on); |
1555 | extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate); | |
1556 | ||
a501633c | 1557 | u64 ide_get_lba_addr(struct ide_taskfile *, int); |
1da177e4 LT |
1558 | u8 ide_dump_status(ide_drive_t *, const char *, u8); |
1559 | ||
3be53f3f BZ |
1560 | struct ide_timing { |
1561 | u8 mode; | |
1562 | u8 setup; /* t1 */ | |
1563 | u16 act8b; /* t2 for 8-bit io */ | |
1564 | u16 rec8b; /* t2i for 8-bit io */ | |
1565 | u16 cyc8b; /* t0 for 8-bit io */ | |
1566 | u16 active; /* t2 or tD */ | |
1567 | u16 recover; /* t2i or tK */ | |
1568 | u16 cycle; /* t0 */ | |
1569 | u16 udma; /* t2CYCTYP/2 */ | |
1570 | }; | |
1571 | ||
1572 | enum { | |
1573 | IDE_TIMING_SETUP = (1 << 0), | |
1574 | IDE_TIMING_ACT8B = (1 << 1), | |
1575 | IDE_TIMING_REC8B = (1 << 2), | |
1576 | IDE_TIMING_CYC8B = (1 << 3), | |
1577 | IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B | | |
1578 | IDE_TIMING_CYC8B, | |
1579 | IDE_TIMING_ACTIVE = (1 << 4), | |
1580 | IDE_TIMING_RECOVER = (1 << 5), | |
1581 | IDE_TIMING_CYCLE = (1 << 6), | |
1582 | IDE_TIMING_UDMA = (1 << 7), | |
1583 | IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT | | |
1584 | IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER | | |
1585 | IDE_TIMING_CYCLE | IDE_TIMING_UDMA, | |
1586 | }; | |
1587 | ||
f06ab340 | 1588 | struct ide_timing *ide_timing_find_mode(u8); |
c9d6c1a2 | 1589 | u16 ide_pio_cycle_time(ide_drive_t *, u8); |
f06ab340 BZ |
1590 | void ide_timing_merge(struct ide_timing *, struct ide_timing *, |
1591 | struct ide_timing *, unsigned int); | |
1592 | int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int); | |
1593 | ||
9ad54093 BZ |
1594 | int ide_scan_pio_blacklist(char *); |
1595 | ||
2134758d | 1596 | u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8); |
1da177e4 | 1597 | |
88b2b32b BZ |
1598 | int ide_set_pio_mode(ide_drive_t *, u8); |
1599 | int ide_set_dma_mode(ide_drive_t *, u8); | |
1600 | ||
26bcb879 BZ |
1601 | void ide_set_pio(ide_drive_t *, u8); |
1602 | ||
1603 | static inline void ide_set_max_pio(ide_drive_t *drive) | |
1604 | { | |
1605 | ide_set_pio(drive, 255); | |
1606 | } | |
1da177e4 LT |
1607 | |
1608 | extern spinlock_t ide_lock; | |
ef29888e | 1609 | extern struct mutex ide_cfg_mtx; |
1da177e4 LT |
1610 | /* |
1611 | * Structure locking: | |
1612 | * | |
ef29888e | 1613 | * ide_cfg_mtx and ide_lock together protect changes to |
1da177e4 LT |
1614 | * ide_hwif_t->{next,hwgroup} |
1615 | * ide_drive_t->next | |
1616 | * | |
1617 | * ide_hwgroup_t->busy: ide_lock | |
1618 | * ide_hwgroup_t->hwif: ide_lock | |
1619 | * ide_hwif_t->mate: constant, no locking | |
1620 | * ide_drive_t->hwif: constant, no locking | |
1621 | */ | |
1622 | ||
366c7f55 | 1623 | #define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0) |
1da177e4 LT |
1624 | |
1625 | extern struct bus_type ide_bus_type; | |
f74c9141 | 1626 | extern struct class *ide_port_class; |
1da177e4 | 1627 | |
7b9f25b5 BZ |
1628 | static inline void ide_dump_identify(u8 *id) |
1629 | { | |
1630 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); | |
1631 | } | |
1632 | ||
86b37860 CL |
1633 | static inline int hwif_to_node(ide_hwif_t *hwif) |
1634 | { | |
96f80219 | 1635 | return hwif->dev ? dev_to_node(hwif->dev) : -1; |
86b37860 CL |
1636 | } |
1637 | ||
7e59ea21 | 1638 | static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) |
1b678347 | 1639 | { |
7e59ea21 | 1640 | ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1]; |
1b678347 | 1641 | |
97100fc8 | 1642 | return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL; |
1b678347 | 1643 | } |
1da177e4 | 1644 | #endif /* _IDE_H */ |