1 /*
2  * Copyright (c) 2012 Qualcomm Atheros, Inc.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <linux/module.h>
18 #include <linux/debugfs.h>
19 #include <linux/seq_file.h>
20 #include <linux/pci.h>
21 #include <linux/rtnetlink.h>
22 
23 #include "wil6210.h"
24 #include "txrx.h"
25 
26 /* Nasty hack. Better have per device instances */
27 static u32 mem_addr;
28 static u32 dbg_txdesc_index;
29 static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */
30 
31 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
32 			    const char *name, struct vring *vring,
33 			    char _s, char _h)
34 {
35 	void __iomem *x = wmi_addr(wil, vring->hwtail);
36 
37 	seq_printf(s, "VRING %s = {\n", name);
38 	seq_printf(s, "  pa     = 0x%016llx\n", (unsigned long long)vring->pa);
39 	seq_printf(s, "  va     = 0x%p\n", vring->va);
40 	seq_printf(s, "  size   = %d\n", vring->size);
41 	seq_printf(s, "  swtail = %d\n", vring->swtail);
42 	seq_printf(s, "  swhead = %d\n", vring->swhead);
43 	seq_printf(s, "  hwtail = [0x%08x] -> ", vring->hwtail);
44 	if (x)
45 		seq_printf(s, "0x%08x\n", ioread32(x));
46 	else
47 		seq_printf(s, "???\n");
48 
49 	if (vring->va && (vring->size < 1025)) {
50 		uint i;
51 		for (i = 0; i < vring->size; i++) {
52 			volatile struct vring_tx_desc *d = &vring->va[i].tx;
53 			if ((i % 64) == 0 && (i != 0))
54 				seq_printf(s, "\n");
55 			seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
56 					_s : (vring->ctx[i].skb ? _h : 'h'));
57 		}
58 		seq_printf(s, "\n");
59 	}
60 	seq_printf(s, "}\n");
61 }
62 
63 static int wil_vring_debugfs_show(struct seq_file *s, void *data)
64 {
65 	uint i;
66 	struct wil6210_priv *wil = s->private;
67 
68 	wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_');
69 
70 	for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
71 		struct vring *vring = &(wil->vring_tx[i]);
72 		if (vring->va) {
73 			int cid = wil->vring2cid_tid[i][0];
74 			int tid = wil->vring2cid_tid[i][1];
75 			char name[10];
76 			snprintf(name, sizeof(name), "tx_%2d", i);
77 
78 			seq_printf(s, "\n%pM CID %d TID %d\n",
79 				   wil->sta[cid].addr, cid, tid);
80 			wil_print_vring(s, wil, name, vring, '_', 'H');
81 		}
82 	}
83 
84 	return 0;
85 }
86 
87 static int wil_vring_seq_open(struct inode *inode, struct file *file)
88 {
89 	return single_open(file, wil_vring_debugfs_show, inode->i_private);
90 }
91 
92 static const struct file_operations fops_vring = {
93 	.open		= wil_vring_seq_open,
94 	.release	= single_release,
95 	.read		= seq_read,
96 	.llseek		= seq_lseek,
97 };
98 
99 static void wil_print_ring(struct seq_file *s, const char *prefix,
100 			   void __iomem *off)
101 {
102 	struct wil6210_priv *wil = s->private;
103 	struct wil6210_mbox_ring r;
104 	int rsize;
105 	uint i;
106 
107 	wil_memcpy_fromio_32(&r, off, sizeof(r));
108 	wil_mbox_ring_le2cpus(&r);
109 	/*
110 	 * we just read memory block from NIC. This memory may be
111 	 * garbage. Check validity before using it.
112 	 */
113 	rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
114 
115 	seq_printf(s, "ring %s = {\n", prefix);
116 	seq_printf(s, "  base = 0x%08x\n", r.base);
117 	seq_printf(s, "  size = 0x%04x bytes -> %d entries\n", r.size, rsize);
118 	seq_printf(s, "  tail = 0x%08x\n", r.tail);
119 	seq_printf(s, "  head = 0x%08x\n", r.head);
120 	seq_printf(s, "  entry size = %d\n", r.entry_size);
121 
122 	if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
123 		seq_printf(s, "  ??? size is not multiple of %zd, garbage?\n",
124 			   sizeof(struct wil6210_mbox_ring_desc));
125 		goto out;
126 	}
127 
128 	if (!wmi_addr(wil, r.base) ||
129 	    !wmi_addr(wil, r.tail) ||
130 	    !wmi_addr(wil, r.head)) {
131 		seq_printf(s, "  ??? pointers are garbage?\n");
132 		goto out;
133 	}
134 
135 	for (i = 0; i < rsize; i++) {
136 		struct wil6210_mbox_ring_desc d;
137 		struct wil6210_mbox_hdr hdr;
138 		size_t delta = i * sizeof(d);
139 		void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
140 
141 		wil_memcpy_fromio_32(&d, x, sizeof(d));
142 
143 		seq_printf(s, "  [%2x] %s %s%s 0x%08x", i,
144 			   d.sync ? "F" : "E",
145 			   (r.tail - r.base == delta) ? "t" : " ",
146 			   (r.head - r.base == delta) ? "h" : " ",
147 			   le32_to_cpu(d.addr));
148 		if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
149 			u16 len = le16_to_cpu(hdr.len);
150 			seq_printf(s, " -> %04x %04x %04x %02x\n",
151 				   le16_to_cpu(hdr.seq), len,
152 				   le16_to_cpu(hdr.type), hdr.flags);
153 			if (len <= MAX_MBOXITEM_SIZE) {
154 				int n = 0;
155 				char printbuf[16 * 3 + 2];
156 				unsigned char databuf[MAX_MBOXITEM_SIZE];
157 				void __iomem *src = wmi_buffer(wil, d.addr) +
158 					sizeof(struct wil6210_mbox_hdr);
159 				/*
160 				 * No need to check @src for validity -
161 				 * we already validated @d.addr while
162 				 * reading header
163 				 */
164 				wil_memcpy_fromio_32(databuf, src, len);
165 				while (n < len) {
166 					int l = min(len - n, 16);
167 					hex_dump_to_buffer(databuf + n, l,
168 							   16, 1, printbuf,
169 							   sizeof(printbuf),
170 							   false);
171 					seq_printf(s, "      : %s\n", printbuf);
172 					n += l;
173 				}
174 			}
175 		} else {
176 			seq_printf(s, "\n");
177 		}
178 	}
179  out:
180 	seq_printf(s, "}\n");
181 }
182 
183 static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
184 {
185 	struct wil6210_priv *wil = s->private;
186 
187 	wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
188 		       offsetof(struct wil6210_mbox_ctl, tx));
189 	wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
190 		       offsetof(struct wil6210_mbox_ctl, rx));
191 
192 	return 0;
193 }
194 
195 static int wil_mbox_seq_open(struct inode *inode, struct file *file)
196 {
197 	return single_open(file, wil_mbox_debugfs_show, inode->i_private);
198 }
199 
200 static const struct file_operations fops_mbox = {
201 	.open		= wil_mbox_seq_open,
202 	.release	= single_release,
203 	.read		= seq_read,
204 	.llseek		= seq_lseek,
205 };
206 
207 static int wil_debugfs_iomem_x32_set(void *data, u64 val)
208 {
209 	iowrite32(val, (void __iomem *)data);
210 	wmb(); /* make sure write propagated to HW */
211 
212 	return 0;
213 }
214 
215 static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
216 {
217 	*val = ioread32((void __iomem *)data);
218 
219 	return 0;
220 }
221 
222 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
223 			wil_debugfs_iomem_x32_set, "0x%08llx\n");
224 
225 static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
226 						   umode_t mode,
227 						   struct dentry *parent,
228 						   void __iomem *value)
229 {
230 	return debugfs_create_file(name, mode, parent, (void * __force)value,
231 				   &fops_iomem_x32);
232 }
233 
234 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
235 				      const char *name,
236 				      struct dentry *parent, u32 off)
237 {
238 	struct dentry *d = debugfs_create_dir(name, parent);
239 
240 	if (IS_ERR_OR_NULL(d))
241 		return -ENODEV;
242 
243 	wil_debugfs_create_iomem_x32("ICC", S_IRUGO | S_IWUSR, d,
244 				     wil->csr + off);
245 	wil_debugfs_create_iomem_x32("ICR", S_IRUGO | S_IWUSR, d,
246 				     wil->csr + off + 4);
247 	wil_debugfs_create_iomem_x32("ICM", S_IRUGO | S_IWUSR, d,
248 				     wil->csr + off + 8);
249 	wil_debugfs_create_iomem_x32("ICS", S_IWUSR, d,
250 				     wil->csr + off + 12);
251 	wil_debugfs_create_iomem_x32("IMV", S_IRUGO | S_IWUSR, d,
252 				     wil->csr + off + 16);
253 	wil_debugfs_create_iomem_x32("IMS", S_IWUSR, d,
254 				     wil->csr + off + 20);
255 	wil_debugfs_create_iomem_x32("IMC", S_IWUSR, d,
256 				     wil->csr + off + 24);
257 
258 	return 0;
259 }
260 
261 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
262 					     struct dentry *parent)
263 {
264 	struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);
265 
266 	if (IS_ERR_OR_NULL(d))
267 		return -ENODEV;
268 
269 	wil_debugfs_create_iomem_x32("CAUSE", S_IRUGO, d, wil->csr +
270 				     HOSTADDR(RGF_DMA_PSEUDO_CAUSE));
271 	wil_debugfs_create_iomem_x32("MASK_SW", S_IRUGO, d, wil->csr +
272 				     HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW));
273 	wil_debugfs_create_iomem_x32("MASK_FW", S_IRUGO, d, wil->csr +
274 				     HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW));
275 
276 	return 0;
277 }
278 
279 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
280 					  struct dentry *parent)
281 {
282 	struct dentry *d = debugfs_create_dir("ITR_CNT", parent);
283 
284 	if (IS_ERR_OR_NULL(d))
285 		return -ENODEV;
286 
287 	wil_debugfs_create_iomem_x32("TRSH", S_IRUGO, d, wil->csr +
288 				     HOSTADDR(RGF_DMA_ITR_CNT_TRSH));
289 	wil_debugfs_create_iomem_x32("DATA", S_IRUGO, d, wil->csr +
290 				     HOSTADDR(RGF_DMA_ITR_CNT_DATA));
291 	wil_debugfs_create_iomem_x32("CTL", S_IRUGO, d, wil->csr +
292 				     HOSTADDR(RGF_DMA_ITR_CNT_CRL));
293 
294 	return 0;
295 }
296 
297 static int wil_memread_debugfs_show(struct seq_file *s, void *data)
298 {
299 	struct wil6210_priv *wil = s->private;
300 	void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr));
301 
302 	if (a)
303 		seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, ioread32(a));
304 	else
305 		seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);
306 
307 	return 0;
308 }
309 
310 static int wil_memread_seq_open(struct inode *inode, struct file *file)
311 {
312 	return single_open(file, wil_memread_debugfs_show, inode->i_private);
313 }
314 
315 static const struct file_operations fops_memread = {
316 	.open		= wil_memread_seq_open,
317 	.release	= single_release,
318 	.read		= seq_read,
319 	.llseek		= seq_lseek,
320 };
321 
322 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
323 				size_t count, loff_t *ppos)
324 {
325 	enum { max_count = 4096 };
326 	struct debugfs_blob_wrapper *blob = file->private_data;
327 	loff_t pos = *ppos;
328 	size_t available = blob->size;
329 	void *buf;
330 	size_t ret;
331 
332 	if (pos < 0)
333 		return -EINVAL;
334 
335 	if (pos >= available || !count)
336 		return 0;
337 
338 	if (count > available - pos)
339 		count = available - pos;
340 	if (count > max_count)
341 		count = max_count;
342 
343 	buf = kmalloc(count, GFP_KERNEL);
344 	if (!buf)
345 		return -ENOMEM;
346 
347 	wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data +
348 			     pos, count);
349 
350 	ret = copy_to_user(user_buf, buf, count);
351 	kfree(buf);
352 	if (ret == count)
353 		return -EFAULT;
354 
355 	count -= ret;
356 	*ppos = pos + count;
357 
358 	return count;
359 }
360 
361 static const struct file_operations fops_ioblob = {
362 	.read =		wil_read_file_ioblob,
363 	.open =		simple_open,
364 	.llseek =	default_llseek,
365 };
366 
367 static
368 struct dentry *wil_debugfs_create_ioblob(const char *name,
369 					 umode_t mode,
370 					 struct dentry *parent,
371 					 struct debugfs_blob_wrapper *blob)
372 {
373 	return debugfs_create_file(name, mode, parent, blob, &fops_ioblob);
374 }
375 /*---reset---*/
376 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
377 				    size_t len, loff_t *ppos)
378 {
379 	struct wil6210_priv *wil = file->private_data;
380 	struct net_device *ndev = wil_to_ndev(wil);
381 
382 	/**
383 	 * BUG:
384 	 * this code does NOT sync device state with the rest of system
385 	 * use with care, debug only!!!
386 	 */
387 	rtnl_lock();
388 	dev_close(ndev);
389 	ndev->flags &= ~IFF_UP;
390 	rtnl_unlock();
391 	wil_reset(wil);
392 
393 	return len;
394 }
395 
396 static const struct file_operations fops_reset = {
397 	.write = wil_write_file_reset,
398 	.open  = simple_open,
399 };
400 
401 static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
402 			    const char *prefix)
403 {
404 	char printbuf[16 * 3 + 2];
405 	int i = 0;
406 	while (i < len) {
407 		int l = min(len - i, 16);
408 		hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
409 				   sizeof(printbuf), false);
410 		seq_printf(s, "%s%s\n", prefix, printbuf);
411 		i += l;
412 	}
413 }
414 
415 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
416 {
417 	int i = 0;
418 	int len = skb_headlen(skb);
419 	void *p = skb->data;
420 	int nr_frags = skb_shinfo(skb)->nr_frags;
421 
422 	seq_printf(s, "    len = %d\n", len);
423 	wil_seq_hexdump(s, p, len, "      : ");
424 
425 	if (nr_frags) {
426 		seq_printf(s, "    nr_frags = %d\n", nr_frags);
427 		for (i = 0; i < nr_frags; i++) {
428 			const struct skb_frag_struct *frag =
429 					&skb_shinfo(skb)->frags[i];
430 
431 			len = skb_frag_size(frag);
432 			p = skb_frag_address_safe(frag);
433 			seq_printf(s, "    [%2d] : len = %d\n", i, len);
434 			wil_seq_hexdump(s, p, len, "      : ");
435 		}
436 	}
437 }
438 
439 /*---------Tx/Rx descriptor------------*/
440 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
441 {
442 	struct wil6210_priv *wil = s->private;
443 	struct vring *vring;
444 	bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS);
445 	if (tx)
446 		vring = &(wil->vring_tx[dbg_vring_index]);
447 	else
448 		vring = &wil->vring_rx;
449 
450 	if (!vring->va) {
451 		if (tx)
452 			seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index);
453 		else
454 			seq_puts(s, "No Rx VRING\n");
455 		return 0;
456 	}
457 
458 	if (dbg_txdesc_index < vring->size) {
459 		/* use struct vring_tx_desc for Rx as well,
460 		 * only field used, .dma.length, is the same
461 		 */
462 		volatile struct vring_tx_desc *d =
463 				&(vring->va[dbg_txdesc_index].tx);
464 		volatile u32 *u = (volatile u32 *)d;
465 		struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb;
466 
467 		if (tx)
468 			seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index,
469 				   dbg_txdesc_index);
470 		else
471 			seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index);
472 		seq_printf(s, "  MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
473 			   u[0], u[1], u[2], u[3]);
474 		seq_printf(s, "  DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
475 			   u[4], u[5], u[6], u[7]);
476 		seq_printf(s, "  SKB = %p\n", skb);
477 
478 		if (skb) {
479 			skb_get(skb);
480 			wil_seq_print_skb(s, skb);
481 			kfree_skb(skb);
482 		}
483 		seq_printf(s, "}\n");
484 	} else {
485 		if (tx)
486 			seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
487 				   dbg_vring_index, dbg_txdesc_index,
488 				   vring->size);
489 		else
490 			seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
491 				   dbg_txdesc_index, vring->size);
492 	}
493 
494 	return 0;
495 }
496 
497 static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
498 {
499 	return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
500 }
501 
502 static const struct file_operations fops_txdesc = {
503 	.open		= wil_txdesc_seq_open,
504 	.release	= single_release,
505 	.read		= seq_read,
506 	.llseek		= seq_lseek,
507 };
508 
509 /*---------beamforming------------*/
510 static int wil_bf_debugfs_show(struct seq_file *s, void *data)
511 {
512 	struct wil6210_priv *wil = s->private;
513 	seq_printf(s,
514 		   "TSF : 0x%016llx\n"
515 		   "TxMCS : %d\n"
516 		   "Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n",
517 		   wil->stats.tsf, wil->stats.bf_mcs,
518 		   wil->stats.my_rx_sector, wil->stats.my_tx_sector,
519 		   wil->stats.peer_rx_sector, wil->stats.peer_tx_sector);
520 	return 0;
521 }
522 
523 static int wil_bf_seq_open(struct inode *inode, struct file *file)
524 {
525 	return single_open(file, wil_bf_debugfs_show, inode->i_private);
526 }
527 
528 static const struct file_operations fops_bf = {
529 	.open		= wil_bf_seq_open,
530 	.release	= single_release,
531 	.read		= seq_read,
532 	.llseek		= seq_lseek,
533 };
534 /*---------SSID------------*/
535 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
536 				  size_t count, loff_t *ppos)
537 {
538 	struct wil6210_priv *wil = file->private_data;
539 	struct wireless_dev *wdev = wil_to_wdev(wil);
540 
541 	return simple_read_from_buffer(user_buf, count, ppos,
542 				       wdev->ssid, wdev->ssid_len);
543 }
544 
545 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
546 				   size_t count, loff_t *ppos)
547 {
548 	struct wil6210_priv *wil = file->private_data;
549 	struct wireless_dev *wdev = wil_to_wdev(wil);
550 	struct net_device *ndev = wil_to_ndev(wil);
551 
552 	if (*ppos != 0) {
553 		wil_err(wil, "Unable to set SSID substring from [%d]\n",
554 			(int)*ppos);
555 		return -EINVAL;
556 	}
557 
558 	if (count > sizeof(wdev->ssid)) {
559 		wil_err(wil, "SSID too long, len = %d\n", (int)count);
560 		return -EINVAL;
561 	}
562 	if (netif_running(ndev)) {
563 		wil_err(wil, "Unable to change SSID on running interface\n");
564 		return -EINVAL;
565 	}
566 
567 	wdev->ssid_len = count;
568 	return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
569 				      buf, count);
570 }
571 
572 static const struct file_operations fops_ssid = {
573 	.read = wil_read_file_ssid,
574 	.write = wil_write_file_ssid,
575 	.open  = simple_open,
576 };
577 
578 /*---------temp------------*/
579 static void print_temp(struct seq_file *s, const char *prefix, u32 t)
580 {
581 	switch (t) {
582 	case 0:
583 	case ~(u32)0:
584 		seq_printf(s, "%s N/A\n", prefix);
585 	break;
586 	default:
587 		seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
588 		break;
589 	}
590 }
591 
592 static int wil_temp_debugfs_show(struct seq_file *s, void *data)
593 {
594 	struct wil6210_priv *wil = s->private;
595 	u32 t_m, t_r;
596 
597 	int rc = wmi_get_temperature(wil, &t_m, &t_r);
598 	if (rc) {
599 		seq_printf(s, "Failed\n");
600 		return 0;
601 	}
602 
603 	print_temp(s, "MAC temperature   :", t_m);
604 	print_temp(s, "Radio temperature :", t_r);
605 
606 	return 0;
607 }
608 
609 static int wil_temp_seq_open(struct inode *inode, struct file *file)
610 {
611 	return single_open(file, wil_temp_debugfs_show, inode->i_private);
612 }
613 
614 static const struct file_operations fops_temp = {
615 	.open		= wil_temp_seq_open,
616 	.release	= single_release,
617 	.read		= seq_read,
618 	.llseek		= seq_lseek,
619 };
620 
621 /*---------Station matrix------------*/
622 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
623 {
624 	int i;
625 	u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
626 	seq_printf(s, "0x%03x [", r->head_seq_num);
627 	for (i = 0; i < r->buf_size; i++) {
628 		if (i == index)
629 			seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
630 		else
631 			seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
632 	}
633 	seq_puts(s, "]\n");
634 }
635 
636 static int wil_sta_debugfs_show(struct seq_file *s, void *data)
637 {
638 	struct wil6210_priv *wil = s->private;
639 	int i, tid;
640 
641 	for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
642 		struct wil_sta_info *p = &wil->sta[i];
643 		char *status = "unknown";
644 		switch (p->status) {
645 		case wil_sta_unused:
646 			status = "unused   ";
647 			break;
648 		case wil_sta_conn_pending:
649 			status = "pending  ";
650 			break;
651 		case wil_sta_connected:
652 			status = "connected";
653 			break;
654 		}
655 		seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status,
656 			   (p->data_port_open ? " data_port_open" : ""));
657 
658 		if (p->status == wil_sta_connected) {
659 			for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
660 				struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
661 				if (r) {
662 					seq_printf(s, "[%2d] ", tid);
663 					wil_print_rxtid(s, r);
664 				}
665 			}
666 		}
667 	}
668 
669 	return 0;
670 }
671 
672 static int wil_sta_seq_open(struct inode *inode, struct file *file)
673 {
674 	return single_open(file, wil_sta_debugfs_show, inode->i_private);
675 }
676 
677 static const struct file_operations fops_sta = {
678 	.open		= wil_sta_seq_open,
679 	.release	= single_release,
680 	.read		= seq_read,
681 	.llseek		= seq_lseek,
682 };
683 
684 /*----------------*/
685 int wil6210_debugfs_init(struct wil6210_priv *wil)
686 {
687 	struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
688 			wil_to_wiphy(wil)->debugfsdir);
689 
690 	if (IS_ERR_OR_NULL(dbg))
691 		return -ENODEV;
692 
693 	debugfs_create_file("mbox", S_IRUGO, dbg, wil, &fops_mbox);
694 	debugfs_create_file("vrings", S_IRUGO, dbg, wil, &fops_vring);
695 	debugfs_create_file("stations", S_IRUGO, dbg, wil, &fops_sta);
696 	debugfs_create_file("desc", S_IRUGO, dbg, wil, &fops_txdesc);
697 	debugfs_create_u32("desc_index", S_IRUGO | S_IWUSR, dbg,
698 			   &dbg_txdesc_index);
699 	debugfs_create_u32("vring_index", S_IRUGO | S_IWUSR, dbg,
700 			   &dbg_vring_index);
701 
702 	debugfs_create_file("bf", S_IRUGO, dbg, wil, &fops_bf);
703 	debugfs_create_file("ssid", S_IRUGO | S_IWUSR, dbg, wil, &fops_ssid);
704 	debugfs_create_u32("secure_pcp", S_IRUGO | S_IWUSR, dbg,
705 			   &wil->secure_pcp);
706 
707 	wil6210_debugfs_create_ISR(wil, "USER_ICR", dbg,
708 				   HOSTADDR(RGF_USER_USER_ICR));
709 	wil6210_debugfs_create_ISR(wil, "DMA_EP_TX_ICR", dbg,
710 				   HOSTADDR(RGF_DMA_EP_TX_ICR));
711 	wil6210_debugfs_create_ISR(wil, "DMA_EP_RX_ICR", dbg,
712 				   HOSTADDR(RGF_DMA_EP_RX_ICR));
713 	wil6210_debugfs_create_ISR(wil, "DMA_EP_MISC_ICR", dbg,
714 				   HOSTADDR(RGF_DMA_EP_MISC_ICR));
715 	wil6210_debugfs_create_pseudo_ISR(wil, dbg);
716 	wil6210_debugfs_create_ITR_CNT(wil, dbg);
717 
718 	debugfs_create_u32("mem_addr", S_IRUGO | S_IWUSR, dbg, &mem_addr);
719 	debugfs_create_file("mem_val", S_IRUGO, dbg, wil, &fops_memread);
720 
721 	debugfs_create_file("reset", S_IWUSR, dbg, wil, &fops_reset);
722 	debugfs_create_file("temp", S_IRUGO, dbg, wil, &fops_temp);
723 
724 	wil->rgf_blob.data = (void * __force)wil->csr + 0;
725 	wil->rgf_blob.size = 0xa000;
726 	wil_debugfs_create_ioblob("blob_rgf", S_IRUGO, dbg, &wil->rgf_blob);
727 
728 	wil->fw_code_blob.data = (void * __force)wil->csr + 0x40000;
729 	wil->fw_code_blob.size = 0x40000;
730 	wil_debugfs_create_ioblob("blob_fw_code", S_IRUGO, dbg,
731 				  &wil->fw_code_blob);
732 
733 	wil->fw_data_blob.data = (void * __force)wil->csr + 0x80000;
734 	wil->fw_data_blob.size = 0x8000;
735 	wil_debugfs_create_ioblob("blob_fw_data", S_IRUGO, dbg,
736 				  &wil->fw_data_blob);
737 
738 	wil->fw_peri_blob.data = (void * __force)wil->csr + 0x88000;
739 	wil->fw_peri_blob.size = 0x18000;
740 	wil_debugfs_create_ioblob("blob_fw_peri", S_IRUGO, dbg,
741 				  &wil->fw_peri_blob);
742 
743 	wil->uc_code_blob.data = (void * __force)wil->csr + 0xa0000;
744 	wil->uc_code_blob.size = 0x10000;
745 	wil_debugfs_create_ioblob("blob_uc_code", S_IRUGO, dbg,
746 				  &wil->uc_code_blob);
747 
748 	wil->uc_data_blob.data = (void * __force)wil->csr + 0xb0000;
749 	wil->uc_data_blob.size = 0x4000;
750 	wil_debugfs_create_ioblob("blob_uc_data", S_IRUGO, dbg,
751 				  &wil->uc_data_blob);
752 
753 	return 0;
754 }
755 
756 void wil6210_debugfs_remove(struct wil6210_priv *wil)
757 {
758 	debugfs_remove_recursive(wil->debug);
759 	wil->debug = NULL;
760 }
761