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[openwrt.git] / target / linux / adm5120 / files / drivers / usb / host / adm5120-dbg.c
1 /*
2 * OHCI HCD (Host Controller Driver) for USB.
3 *
4 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
5 * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
6 *
7 * This file is licenced under the GPL.
8 */
9
10 /*-------------------------------------------------------------------------*/
11
12 #ifdef DEBUG
13
14 static inline char *ed_typestring(int ed_type)
15 {
16 switch (ed_type) {
17 case PIPE_CONTROL:
18 return "ctrl";
19 case PIPE_BULK:
20 return "bulk";
21 case PIPE_INTERRUPT:
22 return "intr";
23 case PIPE_ISOCHRONOUS:
24 return "isoc";
25 }
26 return "(bad ed_type)";
27 }
28
29 static inline char *ed_statestring(int state)
30 {
31 switch (state) {
32 case ED_IDLE:
33 return "IDLE";
34 case ED_UNLINK:
35 return "UNLINK";
36 case ED_OPER:
37 return "OPER";
38 case ED_NEW:
39 return "NEW";
40 }
41 return "?STATE";
42 }
43
44 static inline char *pipestring(int pipe)
45 {
46 return ed_typestring(usb_pipetype(pipe));
47 }
48
49 static inline char *td_pidstring(u32 info)
50 {
51 switch (info & TD_DP) {
52 case TD_DP_SETUP:
53 return "SETUP";
54 case TD_DP_IN:
55 return "IN";
56 case TD_DP_OUT:
57 return "OUT";
58 }
59 return "?PID";
60 }
61
62 static inline char *td_togglestring(u32 info)
63 {
64 switch (info & TD_T) {
65 case TD_T_DATA0:
66 return "DATA0";
67 case TD_T_DATA1:
68 return "DATA1";
69 case TD_T_CARRY:
70 return "CARRY";
71 }
72 return "?TOGGLE";
73 }
74
75 /* debug| print the main components of an URB
76 * small: 0) header + data packets 1) just header
77 */
78 static void __attribute__((unused))
79 urb_print(struct admhcd *ahcd, struct urb * urb, char * str, int small)
80 {
81 unsigned int pipe = urb->pipe;
82
83 if (!urb->dev || !urb->dev->bus) {
84 admhc_dbg(ahcd, "%s URB: no dev", str);
85 return;
86 }
87
88 #ifndef ADMHC_VERBOSE_DEBUG
89 if (urb->status != 0)
90 #endif
91 admhc_dbg(ahcd, "URB-%s %p dev=%d ep=%d%s-%s flags=%x len=%d/%d "
92 "stat=%d\n",
93 str,
94 urb,
95 usb_pipedevice(pipe),
96 usb_pipeendpoint(pipe),
97 usb_pipeout(pipe)? "out" : "in",
98 pipestring(pipe),
99 urb->transfer_flags,
100 urb->actual_length,
101 urb->transfer_buffer_length,
102 urb->status);
103
104 #ifdef ADMHC_VERBOSE_DEBUG
105 if (!small) {
106 int i, len;
107
108 if (usb_pipecontrol(pipe)) {
109 admhc_dbg(admhc, "setup(8): ");
110 for (i = 0; i < 8 ; i++)
111 printk (" %02x", ((__u8 *) urb->setup_packet) [i]);
112 printk ("\n");
113 }
114 if (urb->transfer_buffer_length > 0 && urb->transfer_buffer) {
115 admhc_dbg(admhc, "data(%d/%d): ",
116 urb->actual_length,
117 urb->transfer_buffer_length);
118 len = usb_pipeout(pipe)?
119 urb->transfer_buffer_length: urb->actual_length;
120 for (i = 0; i < 16 && i < len; i++)
121 printk (" %02x", ((__u8 *) urb->transfer_buffer) [i]);
122 printk ("%s stat:%d\n", i < len? "...": "", urb->status);
123 }
124 }
125 #endif /* ADMHC_VERBOSE_DEBUG */
126 }
127
128 #define admhc_dbg_sw(ahcd, next, size, format, arg...) \
129 do { \
130 if (next) { \
131 unsigned s_len; \
132 s_len = scnprintf(*next, *size, format, ## arg ); \
133 *size -= s_len; *next += s_len; \
134 } else \
135 admhc_dbg(ahcd,format, ## arg ); \
136 } while (0);
137
138
139 static void admhc_dump_intr_mask(struct admhcd *ahcd, char *label, u32 mask,
140 char **next, unsigned *size)
141 {
142 admhc_dbg_sw(ahcd, next, size, "%s 0x%08x%s%s%s%s%s%s%s%s%s%s\n",
143 label,
144 mask,
145 (mask & ADMHC_INTR_INTA) ? " INTA" : "",
146 (mask & ADMHC_INTR_FATI) ? " FATI" : "",
147 (mask & ADMHC_INTR_SWI) ? " SWI" : "",
148 (mask & ADMHC_INTR_TDC) ? " TDC" : "",
149 (mask & ADMHC_INTR_FNO) ? " FNO" : "",
150 (mask & ADMHC_INTR_SO) ? " SO" : "",
151 (mask & ADMHC_INTR_INSM) ? " INSM" : "",
152 (mask & ADMHC_INTR_BABI) ? " BABI" : "",
153 (mask & ADMHC_INTR_RESI) ? " RESI" : "",
154 (mask & ADMHC_INTR_SOFI) ? " SOFI" : ""
155 );
156 }
157
158 static void maybe_print_eds(struct admhcd *ahcd, char *label, u32 value,
159 char **next, unsigned *size)
160 {
161 if (value)
162 admhc_dbg_sw(ahcd, next, size, "%s %08x\n", label, value);
163 }
164
165 static char *buss2string (int state)
166 {
167 switch (state) {
168 case ADMHC_BUSS_RESET:
169 return "reset";
170 case ADMHC_BUSS_RESUME:
171 return "resume";
172 case ADMHC_BUSS_OPER:
173 return "operational";
174 case ADMHC_BUSS_SUSPEND:
175 return "suspend";
176 }
177 return "?state";
178 }
179
180 static void
181 admhc_dump_status(struct admhcd *ahcd, char **next, unsigned *size)
182 {
183 struct admhcd_regs __iomem *regs = ahcd->regs;
184 u32 temp;
185
186 temp = admhc_readl(ahcd, &regs->gencontrol);
187 admhc_dbg_sw(ahcd, next, size,
188 "gencontrol 0x%08x%s%s%s%s\n",
189 temp,
190 (temp & ADMHC_CTRL_UHFE) ? " UHFE" : "",
191 (temp & ADMHC_CTRL_SIR) ? " SIR" : "",
192 (temp & ADMHC_CTRL_DMAA) ? " DMAA" : "",
193 (temp & ADMHC_CTRL_SR) ? " SR" : ""
194 );
195
196 temp = admhc_readl(ahcd, &regs->host_control);
197 admhc_dbg_sw(ahcd, next, size,
198 "host_control 0x%08x BUSS=%s%s\n",
199 temp,
200 buss2string(temp & ADMHC_HC_BUSS),
201 (temp & ADMHC_HC_DMAE) ? " DMAE" : ""
202 );
203
204 admhc_dump_intr_mask(ahcd, "int_status",
205 admhc_readl(ahcd, &regs->int_status),
206 next, size);
207 admhc_dump_intr_mask(ahcd, "int_enable",
208 admhc_readl(ahcd, &regs->int_enable),
209 next, size);
210
211 maybe_print_eds(ahcd, "hosthead",
212 admhc_readl(ahcd, &regs->hosthead), next, size);
213 }
214
215 #define dbg_port_sw(hc,num,value,next,size) \
216 admhc_dbg_sw(hc, next, size, \
217 "portstatus [%d] " \
218 "0x%08x%s%s%s%s%s%s%s%s%s%s%s%s\n", \
219 num, temp, \
220 (temp & ADMHC_PS_PRSC) ? " PRSC" : "", \
221 (temp & ADMHC_PS_OCIC) ? " OCIC" : "", \
222 (temp & ADMHC_PS_PSSC) ? " PSSC" : "", \
223 (temp & ADMHC_PS_PESC) ? " PESC" : "", \
224 (temp & ADMHC_PS_CSC) ? " CSC" : "", \
225 \
226 (temp & ADMHC_PS_LSDA) ? " LSDA" : "", \
227 (temp & ADMHC_PS_PPS) ? " PPS" : "", \
228 (temp & ADMHC_PS_PRS) ? " PRS" : "", \
229 (temp & ADMHC_PS_POCI) ? " POCI" : "", \
230 (temp & ADMHC_PS_PSS) ? " PSS" : "", \
231 \
232 (temp & ADMHC_PS_PES) ? " PES" : "", \
233 (temp & ADMHC_PS_CCS) ? " CCS" : "" \
234 );
235
236
237 static void
238 admhc_dump_roothub(
239 struct admhcd *ahcd,
240 int verbose,
241 char **next,
242 unsigned *size)
243 {
244 u32 temp, i;
245
246 temp = admhc_get_rhdesc(ahcd);
247 if (temp == ~(u32)0)
248 return;
249
250 if (verbose) {
251 admhc_dbg_sw(ahcd, next, size,
252 "rhdesc %08x%s%s%s%s%s%s PPCM=%02x%s%s%s%s NUMP=%d(%d)\n",
253 temp,
254 (temp & ADMHC_RH_CRWE) ? " CRWE" : "",
255 (temp & ADMHC_RH_OCIC) ? " OCIC" : "",
256 (temp & ADMHC_RH_LPSC) ? " LPSC" : "",
257 (temp & ADMHC_RH_LPSC) ? " DRWE" : "",
258 (temp & ADMHC_RH_LPSC) ? " OCI" : "",
259 (temp & ADMHC_RH_LPSC) ? " LPS" : "",
260 ((temp & ADMHC_RH_PPCM) >> 16),
261 (temp & ADMHC_RH_NOCP) ? " NOCP" : "",
262 (temp & ADMHC_RH_OCPM) ? " OCPM" : "",
263 (temp & ADMHC_RH_NPS) ? " NPS" : "",
264 (temp & ADMHC_RH_PSM) ? " PSM" : "",
265 (temp & ADMHC_RH_NUMP), ahcd->num_ports
266 );
267 }
268
269 for (i = 0; i < ahcd->num_ports; i++) {
270 temp = admhc_get_portstatus(ahcd, i);
271 dbg_port_sw(ahcd, i, temp, next, size);
272 }
273 }
274
275 static void admhc_dump(struct admhcd *ahcd, int verbose)
276 {
277 admhc_dbg(ahcd, "ADMHC ahcd state\n");
278
279 /* dumps some of the state we know about */
280 admhc_dump_status(ahcd, NULL, NULL);
281 admhc_dbg(ahcd,"current frame #%04x\n",
282 admhc_frame_no(ahcd));
283
284 admhc_dump_roothub(ahcd, verbose, NULL, NULL);
285 }
286
287 static const char data0[] = "DATA0";
288 static const char data1[] = "DATA1";
289
290 static void admhc_dump_td(const struct admhcd *ahcd, const char *label,
291 const struct td *td)
292 {
293 u32 tmp;
294
295 admhc_dbg(ahcd, "%s td %p; urb %p index %d; hwNextTD %08x\n",
296 label, td,
297 td->urb, td->index,
298 hc32_to_cpup(ahcd, &td->hwNextTD));
299
300 tmp = hc32_to_cpup(ahcd, &td->hwINFO);
301 admhc_dbg(ahcd, " status %08x%s CC=%x EC=%d %s %s ISI=%x FN=%x\n",
302 tmp,
303 (tmp & TD_OWN) ? " OWN" : "",
304 TD_CC_GET(tmp),
305 TD_EC_GET(tmp),
306 td_togglestring(tmp),
307 td_pidstring(tmp),
308 TD_ISI_GET(tmp),
309 TD_FN_GET(tmp));
310
311 tmp = hc32_to_cpup(ahcd, &td->hwCBL);
312 admhc_dbg(ahcd, " dbp %08x; cbl %08x; LEN=%d%s\n",
313 hc32_to_cpup(ahcd, &td->hwDBP),
314 tmp,
315 TD_BL_GET(tmp),
316 (tmp & TD_IE) ? " IE" : "");
317 }
318
319 static void admhc_dump_up(const struct admhcd *ahcd, const char *label,
320 const struct urb_priv *up)
321 {
322 int i;
323
324 admhc_dbg(ahcd, "%s urb/%p:\n", label, up->urb);
325 for (i = 0; i < up->td_cnt; i++) {
326 struct td *td = up->td[i];
327 admhc_dump_td(ahcd, " ->", td);
328 }
329 }
330
331 /* caller MUST own hcd spinlock if verbose is set! */
332 static void __attribute__((unused))
333 admhc_dump_ed(const struct admhcd *ahcd, const char *label,
334 const struct ed *ed, int verbose)
335 {
336 u32 tmp = hc32_to_cpu(ahcd, ed->hwINFO);
337
338 admhc_dbg(ahcd, "%s ed %p %s type %s; next ed %08x\n",
339 label,
340 ed, ed_statestring(ed->state), ed_typestring(ed->type),
341 hc32_to_cpup(ahcd, &ed->hwNextED));
342
343 admhc_dbg(ahcd, " info %08x MAX=%d%s%s%s%s EP=%d DEV=%d\n", tmp,
344 ED_MPS_GET(tmp),
345 (tmp & ED_ISO) ? " ISO" : "",
346 (tmp & ED_SKIP) ? " SKIP" : "",
347 (tmp & ED_SPEED_FULL) ? " FULL" : " LOW",
348 (tmp & ED_INT) ? " INT" : "",
349 ED_EN_GET(tmp),
350 ED_FA_GET(tmp));
351
352 tmp = hc32_to_cpup(ahcd, &ed->hwHeadP);
353 admhc_dbg(ahcd, " tds: head %08x tail %08x %s%s\n",
354 tmp & TD_MASK,
355 hc32_to_cpup(ahcd, &ed->hwTailP),
356 (tmp & ED_C) ? data1 : data0,
357 (tmp & ED_H) ? " HALT" : "");
358
359 if (ed->urb_active)
360 admhc_dump_up(ahcd, " active ", ed->urb_active);
361
362 if ((verbose) && (!list_empty(&ed->urb_pending))) {
363 struct list_head *entry;
364 /* dump pending URBs */
365 list_for_each(entry, &ed->urb_pending) {
366 struct urb_priv *up;
367 up = list_entry(entry, struct urb_priv, pending);
368 admhc_dump_up(ahcd, " pending ", up);
369 }
370 }
371 }
372
373 #else /* ifdef DEBUG */
374
375 static inline void urb_print(struct urb * urb, char * str, int small) {}
376 static inline void admhc_dump_up(const struct admhcd *ahcd, const char *label,
377 const struct urb_priv *up) {}
378 static inline void admhc_dump_ed(const struct admhcd *ahcd, const char *label,
379 const struct ed *ed, int verbose) {}
380 static inline void admhc_dump(struct admhcd *ahcd, int verbose) {}
381
382 #undef ADMHC_VERBOSE_DEBUG
383
384 #endif /* DEBUG */
385
386 /*-------------------------------------------------------------------------*/
387
388 #ifdef STUB_DEBUG_FILES
389
390 static inline void create_debug_files(struct admhcd *bus) { }
391 static inline void remove_debug_files(struct admhcd *bus) { }
392
393 #else
394
395 static ssize_t
396 show_urb_priv(struct admhcd *ahcd, char *buf, size_t count,
397 struct urb_priv *up)
398 {
399 unsigned temp, size = count;
400 int i;
401
402 if (!up)
403 return 0;
404
405 temp = scnprintf(buf, size,"\n\turb %p ", up->urb);
406 size -= temp;
407 buf += temp;
408
409 for (i = 0; i< up->td_cnt; i++) {
410 struct td *td;
411 u32 dbp, cbl, info;
412
413 td = up->td[i];
414 info = hc32_to_cpup(ahcd, &td->hwINFO);
415 dbp = hc32_to_cpup(ahcd, &td->hwDBP);
416 cbl = hc32_to_cpup(ahcd, &td->hwCBL);
417
418 temp = scnprintf(buf, size,
419 "\n\t\ttd %p %s %d %s%scc=%x (%08x,%08x)",
420 td,
421 td_pidstring(info),
422 TD_BL_GET(cbl),
423 (info & TD_OWN) ? "WORK " : "DONE ",
424 (cbl & TD_IE) ? "IE " : "",
425 TD_CC_GET(info), info, cbl);
426 size -= temp;
427 buf += temp;
428 }
429
430 return count - size;
431 }
432
433 static ssize_t
434 show_list(struct admhcd *ahcd, char *buf, size_t count, struct ed *ed)
435 {
436 unsigned temp, size = count;
437
438 if (!ed)
439 return 0;
440
441 /* dump a snapshot of the bulk or control schedule */
442 while (ed) {
443 u32 info = hc32_to_cpu(ahcd, ed->hwINFO);
444 u32 headp = hc32_to_cpu(ahcd, ed->hwHeadP);
445
446 temp = scnprintf(buf, size,
447 "ed/%p %s %cs dev%d ep%d %s%smax %d %08x%s%s %s",
448 ed,
449 ed_typestring (ed->type),
450 (info & ED_SPEED_FULL) ? 'f' : 'l',
451 info & ED_FA_MASK,
452 (info >> ED_EN_SHIFT) & ED_EN_MASK,
453 (info & ED_INT) ? "INT " : "",
454 (info & ED_ISO) ? "ISO " : "",
455 (info >> ED_MPS_SHIFT) & ED_MPS_MASK ,
456 info,
457 (info & ED_SKIP) ? " S" : "",
458 (headp & ED_H) ? " H" : "",
459 (headp & ED_C) ? "DATA1" : "DATA0");
460 size -= temp;
461 buf += temp;
462
463 if (ed->urb_active) {
464 temp = scnprintf(buf, size, "\nactive urb:");
465 size -= temp;
466 buf += temp;
467
468 temp = show_urb_priv(ahcd, buf, size, ed->urb_active);
469 size -= temp;
470 buf += temp;
471 }
472
473 if (!list_empty(&ed->urb_pending)) {
474 struct list_head *entry;
475
476 temp = scnprintf(buf, size, "\npending urbs:");
477 size -= temp;
478 buf += temp;
479
480 list_for_each(entry, &ed->urb_pending) {
481 struct urb_priv *up;
482 up = list_entry(entry, struct urb_priv,
483 pending);
484
485 temp = show_urb_priv(ahcd, buf, size, up);
486 size -= temp;
487 buf += temp;
488 }
489 }
490
491 temp = scnprintf(buf, size, "\n");
492 size -= temp;
493 buf += temp;
494
495 ed = ed->ed_next;
496 }
497
498 return count - size;
499 }
500
501 static ssize_t
502 show_async(struct class_device *class_dev, char *buf)
503 {
504 struct usb_bus *bus;
505 struct usb_hcd *hcd;
506 struct admhcd *ahcd;
507 size_t temp;
508 unsigned long flags;
509
510 bus = class_get_devdata(class_dev);
511 hcd = bus_to_hcd(bus);
512 ahcd = hcd_to_admhcd(hcd);
513
514 /* display control and bulk lists together, for simplicity */
515 spin_lock_irqsave(&ahcd->lock, flags);
516 temp = show_list(ahcd, buf, PAGE_SIZE, ahcd->ed_head);
517 spin_unlock_irqrestore(&ahcd->lock, flags);
518
519 return temp;
520 }
521 static CLASS_DEVICE_ATTR(async, S_IRUGO, show_async, NULL);
522
523
524 #define DBG_SCHED_LIMIT 64
525
526 static ssize_t
527 show_periodic(struct class_device *class_dev, char *buf)
528 {
529 #if 0
530 struct usb_bus *bus;
531 struct usb_hcd *hcd;
532 struct admhcd *ahcd;
533 struct ed **seen, *ed;
534 unsigned long flags;
535 unsigned temp, size, seen_count;
536 char *next;
537 unsigned i;
538
539 if (!(seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC)))
540 return 0;
541 seen_count = 0;
542
543 bus = class_get_devdata(class_dev);
544 hcd = bus_to_hcd(bus);
545 ahcd = hcd_to_admhcd(hcd);
546 next = buf;
547 size = PAGE_SIZE;
548
549 temp = scnprintf(next, size, "size = %d\n", NUM_INTS);
550 size -= temp;
551 next += temp;
552
553 /* dump a snapshot of the periodic schedule (and load) */
554 spin_lock_irqsave(&ahcd->lock, flags);
555 for (i = 0; i < NUM_INTS; i++) {
556 if (!(ed = ahcd->periodic [i]))
557 continue;
558
559 temp = scnprintf(next, size, "%2d [%3d]:", i, ahcd->load [i]);
560 size -= temp;
561 next += temp;
562
563 do {
564 temp = scnprintf(next, size, " ed%d/%p",
565 ed->interval, ed);
566 size -= temp;
567 next += temp;
568 for (temp = 0; temp < seen_count; temp++) {
569 if (seen [temp] == ed)
570 break;
571 }
572
573 /* show more info the first time around */
574 if (temp == seen_count) {
575 u32 info = hc32_to_cpu (ahcd, ed->hwINFO);
576 struct list_head *entry;
577 unsigned qlen = 0;
578
579 /* qlen measured here in TDs, not urbs */
580 list_for_each (entry, &ed->td_list)
581 qlen++;
582 temp = scnprintf(next, size,
583 " (%cs dev%d ep%d%s qlen %u"
584 " max %d %08x%s%s)",
585 (info & ED_SPEED_FULL) ? 'f' : 'l',
586 ED_FA_GET(info),
587 ED_EN_GET(info),
588 (info & ED_ISO) ? "iso" : "int",
589 qlen,
590 ED_MPS_GET(info),
591 info,
592 (info & ED_SKIP) ? " K" : "",
593 (ed->hwHeadP &
594 cpu_to_hc32(ahcd, ED_H)) ?
595 " H" : "");
596 size -= temp;
597 next += temp;
598
599 if (seen_count < DBG_SCHED_LIMIT)
600 seen [seen_count++] = ed;
601
602 ed = ed->ed_next;
603
604 } else {
605 /* we've seen it and what's after */
606 temp = 0;
607 ed = NULL;
608 }
609
610 } while (ed);
611
612 temp = scnprintf(next, size, "\n");
613 size -= temp;
614 next += temp;
615 }
616 spin_unlock_irqrestore(&ahcd->lock, flags);
617 kfree (seen);
618
619 return PAGE_SIZE - size;
620 #else
621 return 0;
622 #endif
623 }
624 static CLASS_DEVICE_ATTR(periodic, S_IRUGO, show_periodic, NULL);
625
626
627 #undef DBG_SCHED_LIMIT
628
629 static ssize_t
630 show_registers(struct class_device *class_dev, char *buf)
631 {
632 struct usb_bus *bus;
633 struct usb_hcd *hcd;
634 struct admhcd *ahcd;
635 struct admhcd_regs __iomem *regs;
636 unsigned long flags;
637 unsigned temp, size;
638 char *next;
639 u32 rdata;
640
641 bus = class_get_devdata(class_dev);
642 hcd = bus_to_hcd(bus);
643 ahcd = hcd_to_admhcd(hcd);
644 regs = ahcd->regs;
645 next = buf;
646 size = PAGE_SIZE;
647
648 spin_lock_irqsave(&ahcd->lock, flags);
649
650 /* dump driver info, then registers in spec order */
651
652 admhc_dbg_sw(ahcd, &next, &size,
653 "bus %s, device %s\n"
654 "%s\n"
655 "%s version " DRIVER_VERSION "\n",
656 hcd->self.controller->bus->name,
657 hcd->self.controller->bus_id,
658 hcd->product_desc,
659 hcd_name);
660
661 if (bus->controller->power.power_state.event) {
662 size -= scnprintf(next, size,
663 "SUSPENDED (no register access)\n");
664 goto done;
665 }
666
667 admhc_dump_status(ahcd, &next, &size);
668
669 /* other registers mostly affect frame timings */
670 rdata = admhc_readl(ahcd, &regs->fminterval);
671 temp = scnprintf(next, size,
672 "fmintvl 0x%08x %sFSLDP=0x%04x FI=0x%04x\n",
673 rdata, (rdata & ADMHC_SFI_FIT) ? "FIT " : "",
674 (rdata >> ADMHC_SFI_FSLDP_SHIFT) & ADMHC_SFI_FSLDP_MASK,
675 rdata & ADMHC_SFI_FI_MASK);
676 size -= temp;
677 next += temp;
678
679 rdata = admhc_readl(ahcd, &regs->fmnumber);
680 temp = scnprintf(next, size, "fmnumber 0x%08x %sFR=0x%04x FN=%04x\n",
681 rdata, (rdata & ADMHC_SFN_FRT) ? "FRT " : "",
682 (rdata >> ADMHC_SFN_FR_SHIFT) & ADMHC_SFN_FR_MASK,
683 rdata & ADMHC_SFN_FN_MASK);
684 size -= temp;
685 next += temp;
686
687 /* TODO: use predefined bitmask */
688 rdata = admhc_readl(ahcd, &regs->lsthresh);
689 temp = scnprintf(next, size, "lsthresh 0x%04x\n",
690 rdata & 0x3fff);
691 size -= temp;
692 next += temp;
693
694 temp = scnprintf(next, size, "hub poll timer: %s\n",
695 admhcd_to_hcd(ahcd)->poll_rh ? "ON" : "OFF");
696 size -= temp;
697 next += temp;
698
699 /* roothub */
700 admhc_dump_roothub(ahcd, 1, &next, &size);
701
702 done:
703 spin_unlock_irqrestore(&ahcd->lock, flags);
704 return PAGE_SIZE - size;
705 }
706 static CLASS_DEVICE_ATTR(registers, S_IRUGO, show_registers, NULL);
707
708
709 static inline void create_debug_files (struct admhcd *ahcd)
710 {
711 struct class_device *cldev = admhcd_to_hcd(ahcd)->self.class_dev;
712 int retval;
713
714 retval = class_device_create_file(cldev, &class_device_attr_async);
715 retval = class_device_create_file(cldev, &class_device_attr_periodic);
716 retval = class_device_create_file(cldev, &class_device_attr_registers);
717 admhc_dbg(ahcd, "created debug files\n");
718 }
719
720 static inline void remove_debug_files (struct admhcd *ahcd)
721 {
722 struct class_device *cldev = admhcd_to_hcd(ahcd)->self.class_dev;
723
724 class_device_remove_file(cldev, &class_device_attr_async);
725 class_device_remove_file(cldev, &class_device_attr_periodic);
726 class_device_remove_file(cldev, &class_device_attr_registers);
727 }
728
729 #endif
730
731 /*-------------------------------------------------------------------------*/
732
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