2 * debugfs.c - DesignWare USB3 DRD Controller DebugFS file
4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 of
11 * the License as published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
19 #include <linux/kernel.h>
20 #include <linux/slab.h>
21 #include <linux/ptrace.h>
22 #include <linux/types.h>
23 #include <linux/spinlock.h>
24 #include <linux/debugfs.h>
25 #include <linux/seq_file.h>
26 #include <linux/delay.h>
27 #include <linux/uaccess.h>
29 #include <linux/usb/ch9.h>
36 #define dump_register(nm) \
38 .name = __stringify(nm), \
39 .offset = DWC3_ ##nm, \
42 #define dump_ep_register_set(n) \
44 .name = "DEPCMDPAR2("__stringify(n)")", \
45 .offset = DWC3_DEP_BASE(n) + \
49 .name = "DEPCMDPAR1("__stringify(n)")", \
50 .offset = DWC3_DEP_BASE(n) + \
54 .name = "DEPCMDPAR0("__stringify(n)")", \
55 .offset = DWC3_DEP_BASE(n) + \
59 .name = "DEPCMD("__stringify(n)")", \
60 .offset = DWC3_DEP_BASE(n) + \
65 static const struct debugfs_reg32 dwc3_regs[] = {
66 dump_register(GSBUSCFG0),
67 dump_register(GSBUSCFG1),
68 dump_register(GTXTHRCFG),
69 dump_register(GRXTHRCFG),
71 dump_register(GEVTEN),
73 dump_register(GUCTL1),
74 dump_register(GSNPSID),
78 dump_register(GBUSERRADDR0),
79 dump_register(GBUSERRADDR1),
80 dump_register(GPRTBIMAP0),
81 dump_register(GPRTBIMAP1),
82 dump_register(GHWPARAMS0),
83 dump_register(GHWPARAMS1),
84 dump_register(GHWPARAMS2),
85 dump_register(GHWPARAMS3),
86 dump_register(GHWPARAMS4),
87 dump_register(GHWPARAMS5),
88 dump_register(GHWPARAMS6),
89 dump_register(GHWPARAMS7),
90 dump_register(GDBGFIFOSPACE),
91 dump_register(GDBGLTSSM),
92 dump_register(GPRTBIMAP_HS0),
93 dump_register(GPRTBIMAP_HS1),
94 dump_register(GPRTBIMAP_FS0),
95 dump_register(GPRTBIMAP_FS1),
97 dump_register(GUSB2PHYCFG(0)),
98 dump_register(GUSB2PHYCFG(1)),
99 dump_register(GUSB2PHYCFG(2)),
100 dump_register(GUSB2PHYCFG(3)),
101 dump_register(GUSB2PHYCFG(4)),
102 dump_register(GUSB2PHYCFG(5)),
103 dump_register(GUSB2PHYCFG(6)),
104 dump_register(GUSB2PHYCFG(7)),
105 dump_register(GUSB2PHYCFG(8)),
106 dump_register(GUSB2PHYCFG(9)),
107 dump_register(GUSB2PHYCFG(10)),
108 dump_register(GUSB2PHYCFG(11)),
109 dump_register(GUSB2PHYCFG(12)),
110 dump_register(GUSB2PHYCFG(13)),
111 dump_register(GUSB2PHYCFG(14)),
112 dump_register(GUSB2PHYCFG(15)),
114 dump_register(GUSB2I2CCTL(0)),
115 dump_register(GUSB2I2CCTL(1)),
116 dump_register(GUSB2I2CCTL(2)),
117 dump_register(GUSB2I2CCTL(3)),
118 dump_register(GUSB2I2CCTL(4)),
119 dump_register(GUSB2I2CCTL(5)),
120 dump_register(GUSB2I2CCTL(6)),
121 dump_register(GUSB2I2CCTL(7)),
122 dump_register(GUSB2I2CCTL(8)),
123 dump_register(GUSB2I2CCTL(9)),
124 dump_register(GUSB2I2CCTL(10)),
125 dump_register(GUSB2I2CCTL(11)),
126 dump_register(GUSB2I2CCTL(12)),
127 dump_register(GUSB2I2CCTL(13)),
128 dump_register(GUSB2I2CCTL(14)),
129 dump_register(GUSB2I2CCTL(15)),
131 dump_register(GUSB2PHYACC(0)),
132 dump_register(GUSB2PHYACC(1)),
133 dump_register(GUSB2PHYACC(2)),
134 dump_register(GUSB2PHYACC(3)),
135 dump_register(GUSB2PHYACC(4)),
136 dump_register(GUSB2PHYACC(5)),
137 dump_register(GUSB2PHYACC(6)),
138 dump_register(GUSB2PHYACC(7)),
139 dump_register(GUSB2PHYACC(8)),
140 dump_register(GUSB2PHYACC(9)),
141 dump_register(GUSB2PHYACC(10)),
142 dump_register(GUSB2PHYACC(11)),
143 dump_register(GUSB2PHYACC(12)),
144 dump_register(GUSB2PHYACC(13)),
145 dump_register(GUSB2PHYACC(14)),
146 dump_register(GUSB2PHYACC(15)),
148 dump_register(GUSB3PIPECTL(0)),
149 dump_register(GUSB3PIPECTL(1)),
150 dump_register(GUSB3PIPECTL(2)),
151 dump_register(GUSB3PIPECTL(3)),
152 dump_register(GUSB3PIPECTL(4)),
153 dump_register(GUSB3PIPECTL(5)),
154 dump_register(GUSB3PIPECTL(6)),
155 dump_register(GUSB3PIPECTL(7)),
156 dump_register(GUSB3PIPECTL(8)),
157 dump_register(GUSB3PIPECTL(9)),
158 dump_register(GUSB3PIPECTL(10)),
159 dump_register(GUSB3PIPECTL(11)),
160 dump_register(GUSB3PIPECTL(12)),
161 dump_register(GUSB3PIPECTL(13)),
162 dump_register(GUSB3PIPECTL(14)),
163 dump_register(GUSB3PIPECTL(15)),
165 dump_register(GTXFIFOSIZ(0)),
166 dump_register(GTXFIFOSIZ(1)),
167 dump_register(GTXFIFOSIZ(2)),
168 dump_register(GTXFIFOSIZ(3)),
169 dump_register(GTXFIFOSIZ(4)),
170 dump_register(GTXFIFOSIZ(5)),
171 dump_register(GTXFIFOSIZ(6)),
172 dump_register(GTXFIFOSIZ(7)),
173 dump_register(GTXFIFOSIZ(8)),
174 dump_register(GTXFIFOSIZ(9)),
175 dump_register(GTXFIFOSIZ(10)),
176 dump_register(GTXFIFOSIZ(11)),
177 dump_register(GTXFIFOSIZ(12)),
178 dump_register(GTXFIFOSIZ(13)),
179 dump_register(GTXFIFOSIZ(14)),
180 dump_register(GTXFIFOSIZ(15)),
181 dump_register(GTXFIFOSIZ(16)),
182 dump_register(GTXFIFOSIZ(17)),
183 dump_register(GTXFIFOSIZ(18)),
184 dump_register(GTXFIFOSIZ(19)),
185 dump_register(GTXFIFOSIZ(20)),
186 dump_register(GTXFIFOSIZ(21)),
187 dump_register(GTXFIFOSIZ(22)),
188 dump_register(GTXFIFOSIZ(23)),
189 dump_register(GTXFIFOSIZ(24)),
190 dump_register(GTXFIFOSIZ(25)),
191 dump_register(GTXFIFOSIZ(26)),
192 dump_register(GTXFIFOSIZ(27)),
193 dump_register(GTXFIFOSIZ(28)),
194 dump_register(GTXFIFOSIZ(29)),
195 dump_register(GTXFIFOSIZ(30)),
196 dump_register(GTXFIFOSIZ(31)),
198 dump_register(GRXFIFOSIZ(0)),
199 dump_register(GRXFIFOSIZ(1)),
200 dump_register(GRXFIFOSIZ(2)),
201 dump_register(GRXFIFOSIZ(3)),
202 dump_register(GRXFIFOSIZ(4)),
203 dump_register(GRXFIFOSIZ(5)),
204 dump_register(GRXFIFOSIZ(6)),
205 dump_register(GRXFIFOSIZ(7)),
206 dump_register(GRXFIFOSIZ(8)),
207 dump_register(GRXFIFOSIZ(9)),
208 dump_register(GRXFIFOSIZ(10)),
209 dump_register(GRXFIFOSIZ(11)),
210 dump_register(GRXFIFOSIZ(12)),
211 dump_register(GRXFIFOSIZ(13)),
212 dump_register(GRXFIFOSIZ(14)),
213 dump_register(GRXFIFOSIZ(15)),
214 dump_register(GRXFIFOSIZ(16)),
215 dump_register(GRXFIFOSIZ(17)),
216 dump_register(GRXFIFOSIZ(18)),
217 dump_register(GRXFIFOSIZ(19)),
218 dump_register(GRXFIFOSIZ(20)),
219 dump_register(GRXFIFOSIZ(21)),
220 dump_register(GRXFIFOSIZ(22)),
221 dump_register(GRXFIFOSIZ(23)),
222 dump_register(GRXFIFOSIZ(24)),
223 dump_register(GRXFIFOSIZ(25)),
224 dump_register(GRXFIFOSIZ(26)),
225 dump_register(GRXFIFOSIZ(27)),
226 dump_register(GRXFIFOSIZ(28)),
227 dump_register(GRXFIFOSIZ(29)),
228 dump_register(GRXFIFOSIZ(30)),
229 dump_register(GRXFIFOSIZ(31)),
231 dump_register(GEVNTADRLO(0)),
232 dump_register(GEVNTADRHI(0)),
233 dump_register(GEVNTSIZ(0)),
234 dump_register(GEVNTCOUNT(0)),
236 dump_register(GHWPARAMS8),
239 dump_register(DEVTEN),
241 dump_register(DGCMDPAR),
242 dump_register(DGCMD),
243 dump_register(DALEPENA),
245 dump_ep_register_set(0),
246 dump_ep_register_set(1),
247 dump_ep_register_set(2),
248 dump_ep_register_set(3),
249 dump_ep_register_set(4),
250 dump_ep_register_set(5),
251 dump_ep_register_set(6),
252 dump_ep_register_set(7),
253 dump_ep_register_set(8),
254 dump_ep_register_set(9),
255 dump_ep_register_set(10),
256 dump_ep_register_set(11),
257 dump_ep_register_set(12),
258 dump_ep_register_set(13),
259 dump_ep_register_set(14),
260 dump_ep_register_set(15),
261 dump_ep_register_set(16),
262 dump_ep_register_set(17),
263 dump_ep_register_set(18),
264 dump_ep_register_set(19),
265 dump_ep_register_set(20),
266 dump_ep_register_set(21),
267 dump_ep_register_set(22),
268 dump_ep_register_set(23),
269 dump_ep_register_set(24),
270 dump_ep_register_set(25),
271 dump_ep_register_set(26),
272 dump_ep_register_set(27),
273 dump_ep_register_set(28),
274 dump_ep_register_set(29),
275 dump_ep_register_set(30),
276 dump_ep_register_set(31),
281 dump_register(OEVTEN),
285 static int dwc3_mode_show(struct seq_file *s, void *unused)
287 struct dwc3 *dwc = s->private;
291 spin_lock_irqsave(&dwc->lock, flags);
292 reg = dwc3_readl(dwc->regs, DWC3_GCTL);
293 spin_unlock_irqrestore(&dwc->lock, flags);
295 switch (DWC3_GCTL_PRTCAP(reg)) {
296 case DWC3_GCTL_PRTCAP_HOST:
297 seq_printf(s, "host\n");
299 case DWC3_GCTL_PRTCAP_DEVICE:
300 seq_printf(s, "device\n");
302 case DWC3_GCTL_PRTCAP_OTG:
303 seq_printf(s, "otg\n");
306 seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg));
312 static int dwc3_mode_open(struct inode *inode, struct file *file)
314 return single_open(file, dwc3_mode_show, inode->i_private);
317 static ssize_t dwc3_mode_write(struct file *file,
318 const char __user *ubuf, size_t count, loff_t *ppos)
320 struct seq_file *s = file->private_data;
321 struct dwc3 *dwc = s->private;
325 if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
328 if (!strncmp(buf, "host", 4))
329 mode = DWC3_GCTL_PRTCAP_HOST;
331 if (!strncmp(buf, "device", 6))
332 mode = DWC3_GCTL_PRTCAP_DEVICE;
334 if (!strncmp(buf, "otg", 3))
335 mode = DWC3_GCTL_PRTCAP_OTG;
337 dwc3_set_mode(dwc, mode);
342 static const struct file_operations dwc3_mode_fops = {
343 .open = dwc3_mode_open,
344 .write = dwc3_mode_write,
347 .release = single_release,
350 static int dwc3_testmode_show(struct seq_file *s, void *unused)
352 struct dwc3 *dwc = s->private;
356 spin_lock_irqsave(&dwc->lock, flags);
357 reg = dwc3_readl(dwc->regs, DWC3_DCTL);
358 reg &= DWC3_DCTL_TSTCTRL_MASK;
360 spin_unlock_irqrestore(&dwc->lock, flags);
364 seq_printf(s, "no test\n");
367 seq_printf(s, "test_j\n");
370 seq_printf(s, "test_k\n");
373 seq_printf(s, "test_se0_nak\n");
376 seq_printf(s, "test_packet\n");
379 seq_printf(s, "test_force_enable\n");
382 seq_printf(s, "UNKNOWN %d\n", reg);
388 static int dwc3_testmode_open(struct inode *inode, struct file *file)
390 return single_open(file, dwc3_testmode_show, inode->i_private);
393 static ssize_t dwc3_testmode_write(struct file *file,
394 const char __user *ubuf, size_t count, loff_t *ppos)
396 struct seq_file *s = file->private_data;
397 struct dwc3 *dwc = s->private;
402 if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
405 if (!strncmp(buf, "test_j", 6))
407 else if (!strncmp(buf, "test_k", 6))
409 else if (!strncmp(buf, "test_se0_nak", 12))
410 testmode = TEST_SE0_NAK;
411 else if (!strncmp(buf, "test_packet", 11))
412 testmode = TEST_PACKET;
413 else if (!strncmp(buf, "test_force_enable", 17))
414 testmode = TEST_FORCE_EN;
418 spin_lock_irqsave(&dwc->lock, flags);
419 dwc3_gadget_set_test_mode(dwc, testmode);
420 spin_unlock_irqrestore(&dwc->lock, flags);
425 static const struct file_operations dwc3_testmode_fops = {
426 .open = dwc3_testmode_open,
427 .write = dwc3_testmode_write,
430 .release = single_release,
433 static int dwc3_link_state_show(struct seq_file *s, void *unused)
435 struct dwc3 *dwc = s->private;
437 enum dwc3_link_state state;
440 spin_lock_irqsave(&dwc->lock, flags);
441 reg = dwc3_readl(dwc->regs, DWC3_DSTS);
442 state = DWC3_DSTS_USBLNKST(reg);
443 spin_unlock_irqrestore(&dwc->lock, flags);
445 seq_printf(s, "%s\n", dwc3_gadget_link_string(state));
450 static int dwc3_link_state_open(struct inode *inode, struct file *file)
452 return single_open(file, dwc3_link_state_show, inode->i_private);
455 static ssize_t dwc3_link_state_write(struct file *file,
456 const char __user *ubuf, size_t count, loff_t *ppos)
458 struct seq_file *s = file->private_data;
459 struct dwc3 *dwc = s->private;
461 enum dwc3_link_state state = 0;
464 if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
467 if (!strncmp(buf, "SS.Disabled", 11))
468 state = DWC3_LINK_STATE_SS_DIS;
469 else if (!strncmp(buf, "Rx.Detect", 9))
470 state = DWC3_LINK_STATE_RX_DET;
471 else if (!strncmp(buf, "SS.Inactive", 11))
472 state = DWC3_LINK_STATE_SS_INACT;
473 else if (!strncmp(buf, "Recovery", 8))
474 state = DWC3_LINK_STATE_RECOV;
475 else if (!strncmp(buf, "Compliance", 10))
476 state = DWC3_LINK_STATE_CMPLY;
477 else if (!strncmp(buf, "Loopback", 8))
478 state = DWC3_LINK_STATE_LPBK;
482 spin_lock_irqsave(&dwc->lock, flags);
483 dwc3_gadget_set_link_state(dwc, state);
484 spin_unlock_irqrestore(&dwc->lock, flags);
489 static const struct file_operations dwc3_link_state_fops = {
490 .open = dwc3_link_state_open,
491 .write = dwc3_link_state_write,
494 .release = single_release,
497 struct dwc3_ep_file_map {
499 int (*show)(struct seq_file *s, void *unused);
502 static int dwc3_tx_fifo_queue_show(struct seq_file *s, void *unused)
504 struct dwc3_ep *dep = s->private;
505 struct dwc3 *dwc = dep->dwc;
509 spin_lock_irqsave(&dwc->lock, flags);
510 val = dwc3_core_fifo_space(dep, DWC3_TXFIFOQ);
511 seq_printf(s, "%u\n", val);
512 spin_unlock_irqrestore(&dwc->lock, flags);
517 static int dwc3_rx_fifo_queue_show(struct seq_file *s, void *unused)
519 struct dwc3_ep *dep = s->private;
520 struct dwc3 *dwc = dep->dwc;
524 spin_lock_irqsave(&dwc->lock, flags);
525 val = dwc3_core_fifo_space(dep, DWC3_RXFIFOQ);
526 seq_printf(s, "%u\n", val);
527 spin_unlock_irqrestore(&dwc->lock, flags);
532 static int dwc3_tx_request_queue_show(struct seq_file *s, void *unused)
534 struct dwc3_ep *dep = s->private;
535 struct dwc3 *dwc = dep->dwc;
539 spin_lock_irqsave(&dwc->lock, flags);
540 val = dwc3_core_fifo_space(dep, DWC3_TXREQQ);
541 seq_printf(s, "%u\n", val);
542 spin_unlock_irqrestore(&dwc->lock, flags);
547 static int dwc3_rx_request_queue_show(struct seq_file *s, void *unused)
549 struct dwc3_ep *dep = s->private;
550 struct dwc3 *dwc = dep->dwc;
554 spin_lock_irqsave(&dwc->lock, flags);
555 val = dwc3_core_fifo_space(dep, DWC3_RXREQQ);
556 seq_printf(s, "%u\n", val);
557 spin_unlock_irqrestore(&dwc->lock, flags);
562 static int dwc3_rx_info_queue_show(struct seq_file *s, void *unused)
564 struct dwc3_ep *dep = s->private;
565 struct dwc3 *dwc = dep->dwc;
569 spin_lock_irqsave(&dwc->lock, flags);
570 val = dwc3_core_fifo_space(dep, DWC3_RXINFOQ);
571 seq_printf(s, "%u\n", val);
572 spin_unlock_irqrestore(&dwc->lock, flags);
577 static int dwc3_descriptor_fetch_queue_show(struct seq_file *s, void *unused)
579 struct dwc3_ep *dep = s->private;
580 struct dwc3 *dwc = dep->dwc;
584 spin_lock_irqsave(&dwc->lock, flags);
585 val = dwc3_core_fifo_space(dep, DWC3_DESCFETCHQ);
586 seq_printf(s, "%u\n", val);
587 spin_unlock_irqrestore(&dwc->lock, flags);
592 static int dwc3_event_queue_show(struct seq_file *s, void *unused)
594 struct dwc3_ep *dep = s->private;
595 struct dwc3 *dwc = dep->dwc;
599 spin_lock_irqsave(&dwc->lock, flags);
600 val = dwc3_core_fifo_space(dep, DWC3_EVENTQ);
601 seq_printf(s, "%u\n", val);
602 spin_unlock_irqrestore(&dwc->lock, flags);
607 static int dwc3_ep_transfer_type_show(struct seq_file *s, void *unused)
609 struct dwc3_ep *dep = s->private;
610 struct dwc3 *dwc = dep->dwc;
613 spin_lock_irqsave(&dwc->lock, flags);
614 if (!(dep->flags & DWC3_EP_ENABLED) ||
615 !dep->endpoint.desc) {
616 seq_printf(s, "--\n");
620 switch (usb_endpoint_type(dep->endpoint.desc)) {
621 case USB_ENDPOINT_XFER_CONTROL:
622 seq_printf(s, "control\n");
624 case USB_ENDPOINT_XFER_ISOC:
625 seq_printf(s, "isochronous\n");
627 case USB_ENDPOINT_XFER_BULK:
628 seq_printf(s, "bulk\n");
630 case USB_ENDPOINT_XFER_INT:
631 seq_printf(s, "interrupt\n");
634 seq_printf(s, "--\n");
638 spin_unlock_irqrestore(&dwc->lock, flags);
643 static int dwc3_ep_trb_ring_show(struct seq_file *s, void *unused)
645 struct dwc3_ep *dep = s->private;
646 struct dwc3 *dwc = dep->dwc;
650 spin_lock_irqsave(&dwc->lock, flags);
651 if (dep->number <= 1) {
652 seq_printf(s, "--\n");
656 seq_printf(s, "enqueue pointer %d\n", dep->trb_enqueue);
657 seq_printf(s, "dequeue pointer %d\n", dep->trb_dequeue);
658 seq_printf(s, "\n--------------------------------------------------\n\n");
659 seq_printf(s, "buffer_addr,size,type,ioc,isp_imi,csp,chn,lst,hwo\n");
661 for (i = 0; i < DWC3_TRB_NUM; i++) {
662 struct dwc3_trb *trb = &dep->trb_pool[i];
663 unsigned int type = DWC3_TRBCTL_TYPE(trb->ctrl);
665 seq_printf(s, "%08x%08x,%d,%s,%d,%d,%d,%d,%d,%d\n",
666 trb->bph, trb->bpl, trb->size,
667 dwc3_trb_type_string(type),
668 !!(trb->ctrl & DWC3_TRB_CTRL_IOC),
669 !!(trb->ctrl & DWC3_TRB_CTRL_ISP_IMI),
670 !!(trb->ctrl & DWC3_TRB_CTRL_CSP),
671 !!(trb->ctrl & DWC3_TRB_CTRL_CHN),
672 !!(trb->ctrl & DWC3_TRB_CTRL_LST),
673 !!(trb->ctrl & DWC3_TRB_CTRL_HWO));
677 spin_unlock_irqrestore(&dwc->lock, flags);
682 static struct dwc3_ep_file_map map[] = {
683 { "tx_fifo_queue", dwc3_tx_fifo_queue_show, },
684 { "rx_fifo_queue", dwc3_rx_fifo_queue_show, },
685 { "tx_request_queue", dwc3_tx_request_queue_show, },
686 { "rx_request_queue", dwc3_rx_request_queue_show, },
687 { "rx_info_queue", dwc3_rx_info_queue_show, },
688 { "descriptor_fetch_queue", dwc3_descriptor_fetch_queue_show, },
689 { "event_queue", dwc3_event_queue_show, },
690 { "transfer_type", dwc3_ep_transfer_type_show, },
691 { "trb_ring", dwc3_ep_trb_ring_show, },
694 static int dwc3_endpoint_open(struct inode *inode, struct file *file)
696 const char *file_name = file_dentry(file)->d_iname;
697 struct dwc3_ep_file_map *f_map;
700 for (i = 0; i < ARRAY_SIZE(map); i++) {
703 if (strcmp(f_map->name, file_name) == 0)
707 return single_open(file, f_map->show, inode->i_private);
710 static const struct file_operations dwc3_endpoint_fops = {
711 .open = dwc3_endpoint_open,
714 .release = single_release,
717 static void dwc3_debugfs_create_endpoint_file(struct dwc3_ep *dep,
718 struct dentry *parent, int type)
721 struct dwc3_ep_file_map *ep_file = &map[type];
723 file = debugfs_create_file(ep_file->name, S_IRUGO, parent, dep,
724 &dwc3_endpoint_fops);
727 static void dwc3_debugfs_create_endpoint_files(struct dwc3_ep *dep,
728 struct dentry *parent)
732 for (i = 0; i < ARRAY_SIZE(map); i++)
733 dwc3_debugfs_create_endpoint_file(dep, parent, i);
736 static void dwc3_debugfs_create_endpoint_dir(struct dwc3_ep *dep,
737 struct dentry *parent)
741 dir = debugfs_create_dir(dep->name, parent);
742 if (IS_ERR_OR_NULL(dir))
745 dwc3_debugfs_create_endpoint_files(dep, dir);
748 static void dwc3_debugfs_create_endpoint_dirs(struct dwc3 *dwc,
749 struct dentry *parent)
753 for (i = 0; i < dwc->num_eps; i++) {
754 struct dwc3_ep *dep = dwc->eps[i];
759 dwc3_debugfs_create_endpoint_dir(dep, parent);
763 void dwc3_debugfs_init(struct dwc3 *dwc)
768 root = debugfs_create_dir(dev_name(dwc->dev), NULL);
769 if (IS_ERR_OR_NULL(root)) {
771 dev_err(dwc->dev, "Can't create debugfs root\n");
776 dwc->regset = kzalloc(sizeof(*dwc->regset), GFP_KERNEL);
778 debugfs_remove_recursive(root);
782 dwc->regset->regs = dwc3_regs;
783 dwc->regset->nregs = ARRAY_SIZE(dwc3_regs);
784 dwc->regset->base = dwc->regs - DWC3_GLOBALS_REGS_START;
786 file = debugfs_create_regset32("regdump", S_IRUGO, root, dwc->regset);
788 dev_dbg(dwc->dev, "Can't create debugfs regdump\n");
790 if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)) {
791 file = debugfs_create_file("mode", S_IRUGO | S_IWUSR, root,
792 dwc, &dwc3_mode_fops);
794 dev_dbg(dwc->dev, "Can't create debugfs mode\n");
797 if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE) ||
798 IS_ENABLED(CONFIG_USB_DWC3_GADGET)) {
799 file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root,
800 dwc, &dwc3_testmode_fops);
802 dev_dbg(dwc->dev, "Can't create debugfs testmode\n");
804 file = debugfs_create_file("link_state", S_IRUGO | S_IWUSR,
805 root, dwc, &dwc3_link_state_fops);
807 dev_dbg(dwc->dev, "Can't create debugfs link_state\n");
809 dwc3_debugfs_create_endpoint_dirs(dwc, root);
813 void dwc3_debugfs_exit(struct dwc3 *dwc)
815 debugfs_remove_recursive(dwc->root);