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1da177e4 LT |
1 | #include <linux/module.h> |
2 | #include <linux/types.h> | |
3 | #include <linux/string.h> | |
4 | #include <linux/kernel.h> | |
5 | #include <linux/timer.h> | |
6 | #include <linux/mm.h> | |
7 | #include <linux/interrupt.h> | |
8 | #include <linux/major.h> | |
9 | #include <linux/errno.h> | |
10 | #include <linux/genhd.h> | |
11 | #include <linux/blkpg.h> | |
12 | #include <linux/slab.h> | |
13 | #include <linux/pci.h> | |
14 | #include <linux/delay.h> | |
15 | #include <linux/hdreg.h> | |
16 | #include <linux/ide.h> | |
17 | #include <linux/bitops.h> | |
18 | ||
19 | #include <asm/byteorder.h> | |
20 | #include <asm/irq.h> | |
21 | #include <asm/uaccess.h> | |
22 | #include <asm/io.h> | |
23 | ||
24 | /* | |
25 | * IDE library routines. These are plug in code that most | |
26 | * drivers can use but occasionally may be weird enough | |
27 | * to want to do their own thing with | |
28 | * | |
29 | * Add common non I/O op stuff here. Make sure it has proper | |
30 | * kernel-doc function headers or your patch will be rejected | |
31 | */ | |
32 | ||
33 | ||
34 | /** | |
35 | * ide_xfer_verbose - return IDE mode names | |
36 | * @xfer_rate: rate to name | |
37 | * | |
38 | * Returns a constant string giving the name of the mode | |
39 | * requested. | |
40 | */ | |
41 | ||
42 | char *ide_xfer_verbose (u8 xfer_rate) | |
43 | { | |
44 | switch(xfer_rate) { | |
45 | case XFER_UDMA_7: return("UDMA 7"); | |
46 | case XFER_UDMA_6: return("UDMA 6"); | |
47 | case XFER_UDMA_5: return("UDMA 5"); | |
48 | case XFER_UDMA_4: return("UDMA 4"); | |
49 | case XFER_UDMA_3: return("UDMA 3"); | |
50 | case XFER_UDMA_2: return("UDMA 2"); | |
51 | case XFER_UDMA_1: return("UDMA 1"); | |
52 | case XFER_UDMA_0: return("UDMA 0"); | |
53 | case XFER_MW_DMA_2: return("MW DMA 2"); | |
54 | case XFER_MW_DMA_1: return("MW DMA 1"); | |
55 | case XFER_MW_DMA_0: return("MW DMA 0"); | |
56 | case XFER_SW_DMA_2: return("SW DMA 2"); | |
57 | case XFER_SW_DMA_1: return("SW DMA 1"); | |
58 | case XFER_SW_DMA_0: return("SW DMA 0"); | |
59 | case XFER_PIO_4: return("PIO 4"); | |
60 | case XFER_PIO_3: return("PIO 3"); | |
61 | case XFER_PIO_2: return("PIO 2"); | |
62 | case XFER_PIO_1: return("PIO 1"); | |
63 | case XFER_PIO_0: return("PIO 0"); | |
64 | case XFER_PIO_SLOW: return("PIO SLOW"); | |
65 | default: return("XFER ERROR"); | |
66 | } | |
67 | } | |
68 | ||
69 | EXPORT_SYMBOL(ide_xfer_verbose); | |
70 | ||
71 | /** | |
72 | * ide_dma_speed - compute DMA speed | |
73 | * @drive: drive | |
0750508a | 74 | * @mode: modes available |
1da177e4 LT |
75 | * |
76 | * Checks the drive capabilities and returns the speed to use | |
0750508a SS |
77 | * for the DMA transfer. Returns 0 if the drive is incapable |
78 | * of DMA transfers. | |
1da177e4 LT |
79 | */ |
80 | ||
81 | u8 ide_dma_speed(ide_drive_t *drive, u8 mode) | |
82 | { | |
83 | struct hd_driveid *id = drive->id; | |
84 | ide_hwif_t *hwif = HWIF(drive); | |
0750508a | 85 | u8 ultra_mask, mwdma_mask, swdma_mask; |
1da177e4 LT |
86 | u8 speed = 0; |
87 | ||
88 | if (drive->media != ide_disk && hwif->atapi_dma == 0) | |
89 | return 0; | |
90 | ||
0750508a SS |
91 | /* Capable of UltraDMA modes? */ |
92 | ultra_mask = id->dma_ultra & hwif->ultra_mask; | |
93 | ||
94 | if (!(id->field_valid & 4)) | |
95 | mode = 0; /* fallback to MW/SW DMA if no UltraDMA */ | |
96 | ||
97 | switch (mode) { | |
98 | case 4: | |
99 | if (ultra_mask & 0x40) { | |
100 | speed = XFER_UDMA_6; | |
101 | break; | |
102 | } | |
103 | case 3: | |
104 | if (ultra_mask & 0x20) { | |
105 | speed = XFER_UDMA_5; | |
106 | break; | |
107 | } | |
108 | case 2: | |
109 | if (ultra_mask & 0x10) { | |
110 | speed = XFER_UDMA_4; | |
111 | break; | |
112 | } | |
113 | if (ultra_mask & 0x08) { | |
114 | speed = XFER_UDMA_3; | |
115 | break; | |
116 | } | |
117 | case 1: | |
118 | if (ultra_mask & 0x04) { | |
119 | speed = XFER_UDMA_2; | |
120 | break; | |
121 | } | |
122 | if (ultra_mask & 0x02) { | |
123 | speed = XFER_UDMA_1; | |
124 | break; | |
125 | } | |
126 | if (ultra_mask & 0x01) { | |
127 | speed = XFER_UDMA_0; | |
128 | break; | |
129 | } | |
130 | case 0: | |
131 | mwdma_mask = id->dma_mword & hwif->mwdma_mask; | |
132 | ||
133 | if (mwdma_mask & 0x04) { | |
134 | speed = XFER_MW_DMA_2; | |
135 | break; | |
136 | } | |
137 | if (mwdma_mask & 0x02) { | |
138 | speed = XFER_MW_DMA_1; | |
139 | break; | |
140 | } | |
141 | if (mwdma_mask & 0x01) { | |
142 | speed = XFER_MW_DMA_0; | |
143 | break; | |
144 | } | |
1da177e4 | 145 | |
0750508a SS |
146 | swdma_mask = id->dma_1word & hwif->swdma_mask; |
147 | ||
148 | if (swdma_mask & 0x04) { | |
149 | speed = XFER_SW_DMA_2; | |
150 | break; | |
151 | } | |
152 | if (swdma_mask & 0x02) { | |
153 | speed = XFER_SW_DMA_1; | |
154 | break; | |
155 | } | |
156 | if (swdma_mask & 0x01) { | |
157 | speed = XFER_SW_DMA_0; | |
158 | break; | |
159 | } | |
160 | } | |
1da177e4 LT |
161 | |
162 | return speed; | |
163 | } | |
1da177e4 LT |
164 | EXPORT_SYMBOL(ide_dma_speed); |
165 | ||
166 | ||
167 | /** | |
168 | * ide_rate_filter - return best speed for mode | |
169 | * @mode: modes available | |
170 | * @speed: desired speed | |
171 | * | |
172 | * Given the available DMA/UDMA mode this function returns | |
173 | * the best available speed at or below the speed requested. | |
174 | */ | |
175 | ||
176 | u8 ide_rate_filter (u8 mode, u8 speed) | |
177 | { | |
178 | #ifdef CONFIG_BLK_DEV_IDEDMA | |
179 | static u8 speed_max[] = { | |
180 | XFER_MW_DMA_2, XFER_UDMA_2, XFER_UDMA_4, | |
181 | XFER_UDMA_5, XFER_UDMA_6 | |
182 | }; | |
183 | ||
184 | // printk("%s: mode 0x%02x, speed 0x%02x\n", __FUNCTION__, mode, speed); | |
185 | ||
186 | /* So that we remember to update this if new modes appear */ | |
125e1874 | 187 | BUG_ON(mode > 4); |
1da177e4 LT |
188 | return min(speed, speed_max[mode]); |
189 | #else /* !CONFIG_BLK_DEV_IDEDMA */ | |
190 | return min(speed, (u8)XFER_PIO_4); | |
191 | #endif /* CONFIG_BLK_DEV_IDEDMA */ | |
192 | } | |
193 | ||
194 | EXPORT_SYMBOL(ide_rate_filter); | |
195 | ||
196 | int ide_dma_enable (ide_drive_t *drive) | |
197 | { | |
198 | ide_hwif_t *hwif = HWIF(drive); | |
199 | struct hd_driveid *id = drive->id; | |
200 | ||
201 | return ((int) ((((id->dma_ultra >> 8) & hwif->ultra_mask) || | |
202 | ((id->dma_mword >> 8) & hwif->mwdma_mask) || | |
203 | ((id->dma_1word >> 8) & hwif->swdma_mask)) ? 1 : 0)); | |
204 | } | |
205 | ||
206 | EXPORT_SYMBOL(ide_dma_enable); | |
207 | ||
208 | /* | |
209 | * Standard (generic) timings for PIO modes, from ATA2 specification. | |
210 | * These timings are for access to the IDE data port register *only*. | |
211 | * Some drives may specify a mode, while also specifying a different | |
212 | * value for cycle_time (from drive identification data). | |
213 | */ | |
214 | const ide_pio_timings_t ide_pio_timings[6] = { | |
215 | { 70, 165, 600 }, /* PIO Mode 0 */ | |
216 | { 50, 125, 383 }, /* PIO Mode 1 */ | |
217 | { 30, 100, 240 }, /* PIO Mode 2 */ | |
218 | { 30, 80, 180 }, /* PIO Mode 3 with IORDY */ | |
219 | { 25, 70, 120 }, /* PIO Mode 4 with IORDY */ | |
220 | { 20, 50, 100 } /* PIO Mode 5 with IORDY (nonstandard) */ | |
221 | }; | |
222 | ||
223 | EXPORT_SYMBOL_GPL(ide_pio_timings); | |
224 | ||
225 | /* | |
226 | * Shared data/functions for determining best PIO mode for an IDE drive. | |
227 | * Most of this stuff originally lived in cmd640.c, and changes to the | |
228 | * ide_pio_blacklist[] table should be made with EXTREME CAUTION to avoid | |
229 | * breaking the fragile cmd640.c support. | |
230 | */ | |
231 | ||
232 | /* | |
233 | * Black list. Some drives incorrectly report their maximal PIO mode, | |
234 | * at least in respect to CMD640. Here we keep info on some known drives. | |
235 | */ | |
236 | static struct ide_pio_info { | |
237 | const char *name; | |
238 | int pio; | |
239 | } ide_pio_blacklist [] = { | |
240 | /* { "Conner Peripherals 1275MB - CFS1275A", 4 }, */ | |
241 | { "Conner Peripherals 540MB - CFS540A", 3 }, | |
242 | ||
243 | { "WDC AC2700", 3 }, | |
244 | { "WDC AC2540", 3 }, | |
245 | { "WDC AC2420", 3 }, | |
246 | { "WDC AC2340", 3 }, | |
247 | { "WDC AC2250", 0 }, | |
248 | { "WDC AC2200", 0 }, | |
249 | { "WDC AC21200", 4 }, | |
250 | { "WDC AC2120", 0 }, | |
251 | { "WDC AC2850", 3 }, | |
252 | { "WDC AC1270", 3 }, | |
253 | { "WDC AC1170", 1 }, | |
254 | { "WDC AC1210", 1 }, | |
255 | { "WDC AC280", 0 }, | |
256 | /* { "WDC AC21000", 4 }, */ | |
257 | { "WDC AC31000", 3 }, | |
258 | { "WDC AC31200", 3 }, | |
259 | /* { "WDC AC31600", 4 }, */ | |
260 | ||
261 | { "Maxtor 7131 AT", 1 }, | |
262 | { "Maxtor 7171 AT", 1 }, | |
263 | { "Maxtor 7213 AT", 1 }, | |
264 | { "Maxtor 7245 AT", 1 }, | |
265 | { "Maxtor 7345 AT", 1 }, | |
266 | { "Maxtor 7546 AT", 3 }, | |
267 | { "Maxtor 7540 AV", 3 }, | |
268 | ||
269 | { "SAMSUNG SHD-3121A", 1 }, | |
270 | { "SAMSUNG SHD-3122A", 1 }, | |
271 | { "SAMSUNG SHD-3172A", 1 }, | |
272 | ||
273 | /* { "ST51080A", 4 }, | |
274 | * { "ST51270A", 4 }, | |
275 | * { "ST31220A", 4 }, | |
276 | * { "ST31640A", 4 }, | |
277 | * { "ST32140A", 4 }, | |
278 | * { "ST3780A", 4 }, | |
279 | */ | |
280 | { "ST5660A", 3 }, | |
281 | { "ST3660A", 3 }, | |
282 | { "ST3630A", 3 }, | |
283 | { "ST3655A", 3 }, | |
284 | { "ST3391A", 3 }, | |
285 | { "ST3390A", 1 }, | |
286 | { "ST3600A", 1 }, | |
287 | { "ST3290A", 0 }, | |
288 | { "ST3144A", 0 }, | |
289 | { "ST3491A", 1 }, /* reports 3, should be 1 or 2 (depending on */ | |
290 | /* drive) according to Seagates FIND-ATA program */ | |
291 | ||
292 | { "QUANTUM ELS127A", 0 }, | |
293 | { "QUANTUM ELS170A", 0 }, | |
294 | { "QUANTUM LPS240A", 0 }, | |
295 | { "QUANTUM LPS210A", 3 }, | |
296 | { "QUANTUM LPS270A", 3 }, | |
297 | { "QUANTUM LPS365A", 3 }, | |
298 | { "QUANTUM LPS540A", 3 }, | |
299 | { "QUANTUM LIGHTNING 540A", 3 }, | |
300 | { "QUANTUM LIGHTNING 730A", 3 }, | |
301 | ||
302 | { "QUANTUM FIREBALL_540", 3 }, /* Older Quantum Fireballs don't work */ | |
303 | { "QUANTUM FIREBALL_640", 3 }, | |
304 | { "QUANTUM FIREBALL_1080", 3 }, | |
305 | { "QUANTUM FIREBALL_1280", 3 }, | |
306 | { NULL, 0 } | |
307 | }; | |
308 | ||
309 | /** | |
310 | * ide_scan_pio_blacklist - check for a blacklisted drive | |
311 | * @model: Drive model string | |
312 | * | |
313 | * This routine searches the ide_pio_blacklist for an entry | |
314 | * matching the start/whole of the supplied model name. | |
315 | * | |
316 | * Returns -1 if no match found. | |
317 | * Otherwise returns the recommended PIO mode from ide_pio_blacklist[]. | |
318 | */ | |
319 | ||
320 | static int ide_scan_pio_blacklist (char *model) | |
321 | { | |
322 | struct ide_pio_info *p; | |
323 | ||
324 | for (p = ide_pio_blacklist; p->name != NULL; p++) { | |
325 | if (strncmp(p->name, model, strlen(p->name)) == 0) | |
326 | return p->pio; | |
327 | } | |
328 | return -1; | |
329 | } | |
330 | ||
331 | /** | |
332 | * ide_get_best_pio_mode - get PIO mode from drive | |
333 | * @driver: drive to consider | |
334 | * @mode_wanted: preferred mode | |
335 | * @max_mode: highest allowed | |
336 | * @d: pio data | |
337 | * | |
338 | * This routine returns the recommended PIO settings for a given drive, | |
339 | * based on the drive->id information and the ide_pio_blacklist[]. | |
340 | * This is used by most chipset support modules when "auto-tuning". | |
341 | * | |
342 | * Drive PIO mode auto selection | |
343 | */ | |
344 | ||
345 | u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode, ide_pio_data_t *d) | |
346 | { | |
347 | int pio_mode; | |
348 | int cycle_time = 0; | |
349 | int use_iordy = 0; | |
350 | struct hd_driveid* id = drive->id; | |
351 | int overridden = 0; | |
352 | int blacklisted = 0; | |
353 | ||
354 | if (mode_wanted != 255) { | |
355 | pio_mode = mode_wanted; | |
356 | } else if (!drive->id) { | |
357 | pio_mode = 0; | |
358 | } else if ((pio_mode = ide_scan_pio_blacklist(id->model)) != -1) { | |
359 | overridden = 1; | |
360 | blacklisted = 1; | |
361 | use_iordy = (pio_mode > 2); | |
362 | } else { | |
363 | pio_mode = id->tPIO; | |
364 | if (pio_mode > 2) { /* 2 is maximum allowed tPIO value */ | |
365 | pio_mode = 2; | |
366 | overridden = 1; | |
367 | } | |
368 | if (id->field_valid & 2) { /* drive implements ATA2? */ | |
369 | if (id->capability & 8) { /* drive supports use_iordy? */ | |
370 | use_iordy = 1; | |
371 | cycle_time = id->eide_pio_iordy; | |
372 | if (id->eide_pio_modes & 7) { | |
373 | overridden = 0; | |
374 | if (id->eide_pio_modes & 4) | |
375 | pio_mode = 5; | |
376 | else if (id->eide_pio_modes & 2) | |
377 | pio_mode = 4; | |
378 | else | |
379 | pio_mode = 3; | |
380 | } | |
381 | } else { | |
382 | cycle_time = id->eide_pio; | |
383 | } | |
384 | } | |
385 | ||
386 | #if 0 | |
387 | if (drive->id->major_rev_num & 0x0004) printk("ATA-2 "); | |
388 | #endif | |
389 | ||
390 | /* | |
391 | * Conservative "downgrade" for all pre-ATA2 drives | |
392 | */ | |
393 | if (pio_mode && pio_mode < 4) { | |
394 | pio_mode--; | |
395 | overridden = 1; | |
396 | #if 0 | |
397 | use_iordy = (pio_mode > 2); | |
398 | #endif | |
399 | if (cycle_time && cycle_time < ide_pio_timings[pio_mode].cycle_time) | |
400 | cycle_time = 0; /* use standard timing */ | |
401 | } | |
402 | } | |
403 | if (pio_mode > max_mode) { | |
404 | pio_mode = max_mode; | |
405 | cycle_time = 0; | |
406 | } | |
407 | if (d) { | |
408 | d->pio_mode = pio_mode; | |
409 | d->cycle_time = cycle_time ? cycle_time : ide_pio_timings[pio_mode].cycle_time; | |
410 | d->use_iordy = use_iordy; | |
411 | d->overridden = overridden; | |
412 | d->blacklisted = blacklisted; | |
413 | } | |
414 | return pio_mode; | |
415 | } | |
416 | ||
417 | EXPORT_SYMBOL_GPL(ide_get_best_pio_mode); | |
418 | ||
419 | /** | |
420 | * ide_toggle_bounce - handle bounce buffering | |
421 | * @drive: drive to update | |
422 | * @on: on/off boolean | |
423 | * | |
424 | * Enable or disable bounce buffering for the device. Drives move | |
425 | * between PIO and DMA and that changes the rules we need. | |
426 | */ | |
427 | ||
428 | void ide_toggle_bounce(ide_drive_t *drive, int on) | |
429 | { | |
430 | u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */ | |
431 | ||
6593178d JB |
432 | if (!PCI_DMA_BUS_IS_PHYS) { |
433 | addr = BLK_BOUNCE_ANY; | |
434 | } else if (on && drive->media == ide_disk) { | |
435 | if (HWIF(drive)->pci_dev) | |
1da177e4 LT |
436 | addr = HWIF(drive)->pci_dev->dma_mask; |
437 | } | |
438 | ||
439 | if (drive->queue) | |
440 | blk_queue_bounce_limit(drive->queue, addr); | |
441 | } | |
442 | ||
443 | /** | |
444 | * ide_set_xfer_rate - set transfer rate | |
445 | * @drive: drive to set | |
446 | * @speed: speed to attempt to set | |
447 | * | |
448 | * General helper for setting the speed of an IDE device. This | |
449 | * function knows about user enforced limits from the configuration | |
450 | * which speedproc() does not. High level drivers should never | |
451 | * invoke speedproc() directly. | |
452 | */ | |
453 | ||
454 | int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) | |
455 | { | |
456 | #ifndef CONFIG_BLK_DEV_IDEDMA | |
457 | rate = min(rate, (u8) XFER_PIO_4); | |
458 | #endif | |
459 | if(HWIF(drive)->speedproc) | |
460 | return HWIF(drive)->speedproc(drive, rate); | |
461 | else | |
462 | return -1; | |
463 | } | |
464 | ||
465 | EXPORT_SYMBOL_GPL(ide_set_xfer_rate); | |
466 | ||
467 | static void ide_dump_opcode(ide_drive_t *drive) | |
468 | { | |
469 | struct request *rq; | |
470 | u8 opcode = 0; | |
471 | int found = 0; | |
472 | ||
473 | spin_lock(&ide_lock); | |
474 | rq = NULL; | |
475 | if (HWGROUP(drive)) | |
476 | rq = HWGROUP(drive)->rq; | |
477 | spin_unlock(&ide_lock); | |
478 | if (!rq) | |
479 | return; | |
4aff5e23 JA |
480 | if (rq->cmd_type == REQ_TYPE_ATA_CMD || |
481 | rq->cmd_type == REQ_TYPE_ATA_TASK) { | |
1da177e4 LT |
482 | char *args = rq->buffer; |
483 | if (args) { | |
484 | opcode = args[0]; | |
485 | found = 1; | |
486 | } | |
4aff5e23 | 487 | } else if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { |
1da177e4 LT |
488 | ide_task_t *args = rq->special; |
489 | if (args) { | |
490 | task_struct_t *tf = (task_struct_t *) args->tfRegister; | |
491 | opcode = tf->command; | |
492 | found = 1; | |
493 | } | |
494 | } | |
495 | ||
496 | printk("ide: failed opcode was: "); | |
497 | if (!found) | |
498 | printk("unknown\n"); | |
499 | else | |
500 | printk("0x%02x\n", opcode); | |
501 | } | |
502 | ||
503 | static u8 ide_dump_ata_status(ide_drive_t *drive, const char *msg, u8 stat) | |
504 | { | |
505 | ide_hwif_t *hwif = HWIF(drive); | |
506 | unsigned long flags; | |
507 | u8 err = 0; | |
508 | ||
3d1c1cc9 | 509 | local_irq_save(flags); |
13bbbf28 | 510 | printk("%s: %s: status=0x%02x { ", drive->name, msg, stat); |
1da177e4 LT |
511 | if (stat & BUSY_STAT) |
512 | printk("Busy "); | |
513 | else { | |
514 | if (stat & READY_STAT) printk("DriveReady "); | |
515 | if (stat & WRERR_STAT) printk("DeviceFault "); | |
516 | if (stat & SEEK_STAT) printk("SeekComplete "); | |
517 | if (stat & DRQ_STAT) printk("DataRequest "); | |
518 | if (stat & ECC_STAT) printk("CorrectedError "); | |
519 | if (stat & INDEX_STAT) printk("Index "); | |
520 | if (stat & ERR_STAT) printk("Error "); | |
521 | } | |
13bbbf28 | 522 | printk("}\n"); |
1da177e4 LT |
523 | if ((stat & (BUSY_STAT|ERR_STAT)) == ERR_STAT) { |
524 | err = hwif->INB(IDE_ERROR_REG); | |
13bbbf28 | 525 | printk("%s: %s: error=0x%02x { ", drive->name, msg, err); |
1da177e4 LT |
526 | if (err & ABRT_ERR) printk("DriveStatusError "); |
527 | if (err & ICRC_ERR) | |
13bbbf28 | 528 | printk((err & ABRT_ERR) ? "BadCRC " : "BadSector "); |
1da177e4 LT |
529 | if (err & ECC_ERR) printk("UncorrectableError "); |
530 | if (err & ID_ERR) printk("SectorIdNotFound "); | |
531 | if (err & TRK0_ERR) printk("TrackZeroNotFound "); | |
532 | if (err & MARK_ERR) printk("AddrMarkNotFound "); | |
533 | printk("}"); | |
534 | if ((err & (BBD_ERR | ABRT_ERR)) == BBD_ERR || | |
535 | (err & (ECC_ERR|ID_ERR|MARK_ERR))) { | |
536 | if (drive->addressing == 1) { | |
537 | __u64 sectors = 0; | |
538 | u32 low = 0, high = 0; | |
539 | low = ide_read_24(drive); | |
540 | hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG); | |
541 | high = ide_read_24(drive); | |
542 | sectors = ((__u64)high << 24) | low; | |
543 | printk(", LBAsect=%llu, high=%d, low=%d", | |
544 | (unsigned long long) sectors, | |
545 | high, low); | |
546 | } else { | |
547 | u8 cur = hwif->INB(IDE_SELECT_REG); | |
548 | if (cur & 0x40) { /* using LBA? */ | |
549 | printk(", LBAsect=%ld", (unsigned long) | |
550 | ((cur&0xf)<<24) | |
551 | |(hwif->INB(IDE_HCYL_REG)<<16) | |
552 | |(hwif->INB(IDE_LCYL_REG)<<8) | |
553 | | hwif->INB(IDE_SECTOR_REG)); | |
554 | } else { | |
555 | printk(", CHS=%d/%d/%d", | |
556 | (hwif->INB(IDE_HCYL_REG)<<8) + | |
557 | hwif->INB(IDE_LCYL_REG), | |
558 | cur & 0xf, | |
559 | hwif->INB(IDE_SECTOR_REG)); | |
560 | } | |
561 | } | |
562 | if (HWGROUP(drive) && HWGROUP(drive)->rq) | |
563 | printk(", sector=%llu", | |
564 | (unsigned long long)HWGROUP(drive)->rq->sector); | |
565 | } | |
13bbbf28 | 566 | printk("\n"); |
1da177e4 | 567 | } |
1da177e4 LT |
568 | ide_dump_opcode(drive); |
569 | local_irq_restore(flags); | |
570 | return err; | |
571 | } | |
572 | ||
573 | /** | |
574 | * ide_dump_atapi_status - print human readable atapi status | |
575 | * @drive: drive that status applies to | |
576 | * @msg: text message to print | |
577 | * @stat: status byte to decode | |
578 | * | |
579 | * Error reporting, in human readable form (luxurious, but a memory hog). | |
580 | */ | |
581 | ||
582 | static u8 ide_dump_atapi_status(ide_drive_t *drive, const char *msg, u8 stat) | |
583 | { | |
584 | unsigned long flags; | |
585 | ||
586 | atapi_status_t status; | |
587 | atapi_error_t error; | |
588 | ||
589 | status.all = stat; | |
590 | error.all = 0; | |
3d1c1cc9 | 591 | local_irq_save(flags); |
1da177e4 LT |
592 | printk("%s: %s: status=0x%02x { ", drive->name, msg, stat); |
593 | if (status.b.bsy) | |
594 | printk("Busy "); | |
595 | else { | |
596 | if (status.b.drdy) printk("DriveReady "); | |
597 | if (status.b.df) printk("DeviceFault "); | |
598 | if (status.b.dsc) printk("SeekComplete "); | |
599 | if (status.b.drq) printk("DataRequest "); | |
600 | if (status.b.corr) printk("CorrectedError "); | |
601 | if (status.b.idx) printk("Index "); | |
602 | if (status.b.check) printk("Error "); | |
603 | } | |
604 | printk("}\n"); | |
605 | if (status.b.check && !status.b.bsy) { | |
606 | error.all = HWIF(drive)->INB(IDE_ERROR_REG); | |
607 | printk("%s: %s: error=0x%02x { ", drive->name, msg, error.all); | |
608 | if (error.b.ili) printk("IllegalLengthIndication "); | |
609 | if (error.b.eom) printk("EndOfMedia "); | |
610 | if (error.b.abrt) printk("AbortedCommand "); | |
611 | if (error.b.mcr) printk("MediaChangeRequested "); | |
612 | if (error.b.sense_key) printk("LastFailedSense=0x%02x ", | |
613 | error.b.sense_key); | |
614 | printk("}\n"); | |
615 | } | |
616 | ide_dump_opcode(drive); | |
617 | local_irq_restore(flags); | |
618 | return error.all; | |
619 | } | |
620 | ||
621 | /** | |
622 | * ide_dump_status - translate ATA/ATAPI error | |
623 | * @drive: drive the error occured on | |
624 | * @msg: information string | |
625 | * @stat: status byte | |
626 | * | |
627 | * Error reporting, in human readable form (luxurious, but a memory hog). | |
628 | * Combines the drive name, message and status byte to provide a | |
629 | * user understandable explanation of the device error. | |
630 | */ | |
631 | ||
632 | u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat) | |
633 | { | |
634 | if (drive->media == ide_disk) | |
635 | return ide_dump_ata_status(drive, msg, stat); | |
636 | return ide_dump_atapi_status(drive, msg, stat); | |
637 | } | |
638 | ||
639 | EXPORT_SYMBOL(ide_dump_status); |