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wil6210: fix beamforming data reporting
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / debugfs.c
1 /*
2 * Copyright (c) 2012-2014 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 #include <linux/power_supply.h>
23
24 #include "wil6210.h"
25 #include "wmi.h"
26 #include "txrx.h"
27
28 /* Nasty hack. Better have per device instances */
29 static u32 mem_addr;
30 static u32 dbg_txdesc_index;
31 static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */
32
33 enum dbg_off_type {
34 doff_u32 = 0,
35 doff_x32 = 1,
36 doff_ulong = 2,
37 doff_io32 = 3,
38 };
39
40 /* offset to "wil" */
41 struct dbg_off {
42 const char *name;
43 umode_t mode;
44 ulong off;
45 enum dbg_off_type type;
46 };
47
48 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
49 const char *name, struct vring *vring,
50 char _s, char _h)
51 {
52 void __iomem *x = wmi_addr(wil, vring->hwtail);
53
54 seq_printf(s, "VRING %s = {\n", name);
55 seq_printf(s, " pa = %pad\n", &vring->pa);
56 seq_printf(s, " va = 0x%p\n", vring->va);
57 seq_printf(s, " size = %d\n", vring->size);
58 seq_printf(s, " swtail = %d\n", vring->swtail);
59 seq_printf(s, " swhead = %d\n", vring->swhead);
60 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail);
61 if (x)
62 seq_printf(s, "0x%08x\n", ioread32(x));
63 else
64 seq_printf(s, "???\n");
65
66 if (vring->va && (vring->size < 1025)) {
67 uint i;
68 for (i = 0; i < vring->size; i++) {
69 volatile struct vring_tx_desc *d = &vring->va[i].tx;
70 if ((i % 64) == 0 && (i != 0))
71 seq_printf(s, "\n");
72 seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
73 _s : (vring->ctx[i].skb ? _h : 'h'));
74 }
75 seq_printf(s, "\n");
76 }
77 seq_printf(s, "}\n");
78 }
79
80 static int wil_vring_debugfs_show(struct seq_file *s, void *data)
81 {
82 uint i;
83 struct wil6210_priv *wil = s->private;
84
85 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_');
86
87 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
88 struct vring *vring = &(wil->vring_tx[i]);
89 struct vring_tx_data *txdata = &wil->vring_tx_data[i];
90
91 if (vring->va) {
92 int cid = wil->vring2cid_tid[i][0];
93 int tid = wil->vring2cid_tid[i][1];
94 u32 swhead = vring->swhead;
95 u32 swtail = vring->swtail;
96 int used = (vring->size + swhead - swtail)
97 % vring->size;
98 int avail = vring->size - used - 1;
99 char name[10];
100 /* performance monitoring */
101 cycles_t now = get_cycles();
102 cycles_t idle = txdata->idle * 100;
103 cycles_t total = now - txdata->begin;
104
105 do_div(idle, total);
106 txdata->begin = now;
107 txdata->idle = 0ULL;
108
109 snprintf(name, sizeof(name), "tx_%2d", i);
110
111 seq_printf(s, "\n%pM CID %d TID %d [%3d|%3d] idle %3d%%\n",
112 wil->sta[cid].addr, cid, tid, used, avail,
113 (int)idle);
114
115 wil_print_vring(s, wil, name, vring, '_', 'H');
116 }
117 }
118
119 return 0;
120 }
121
122 static int wil_vring_seq_open(struct inode *inode, struct file *file)
123 {
124 return single_open(file, wil_vring_debugfs_show, inode->i_private);
125 }
126
127 static const struct file_operations fops_vring = {
128 .open = wil_vring_seq_open,
129 .release = single_release,
130 .read = seq_read,
131 .llseek = seq_lseek,
132 };
133
134 static void wil_print_ring(struct seq_file *s, const char *prefix,
135 void __iomem *off)
136 {
137 struct wil6210_priv *wil = s->private;
138 struct wil6210_mbox_ring r;
139 int rsize;
140 uint i;
141
142 wil_memcpy_fromio_32(&r, off, sizeof(r));
143 wil_mbox_ring_le2cpus(&r);
144 /*
145 * we just read memory block from NIC. This memory may be
146 * garbage. Check validity before using it.
147 */
148 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
149
150 seq_printf(s, "ring %s = {\n", prefix);
151 seq_printf(s, " base = 0x%08x\n", r.base);
152 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize);
153 seq_printf(s, " tail = 0x%08x\n", r.tail);
154 seq_printf(s, " head = 0x%08x\n", r.head);
155 seq_printf(s, " entry size = %d\n", r.entry_size);
156
157 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
158 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n",
159 sizeof(struct wil6210_mbox_ring_desc));
160 goto out;
161 }
162
163 if (!wmi_addr(wil, r.base) ||
164 !wmi_addr(wil, r.tail) ||
165 !wmi_addr(wil, r.head)) {
166 seq_printf(s, " ??? pointers are garbage?\n");
167 goto out;
168 }
169
170 for (i = 0; i < rsize; i++) {
171 struct wil6210_mbox_ring_desc d;
172 struct wil6210_mbox_hdr hdr;
173 size_t delta = i * sizeof(d);
174 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
175
176 wil_memcpy_fromio_32(&d, x, sizeof(d));
177
178 seq_printf(s, " [%2x] %s %s%s 0x%08x", i,
179 d.sync ? "F" : "E",
180 (r.tail - r.base == delta) ? "t" : " ",
181 (r.head - r.base == delta) ? "h" : " ",
182 le32_to_cpu(d.addr));
183 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
184 u16 len = le16_to_cpu(hdr.len);
185 seq_printf(s, " -> %04x %04x %04x %02x\n",
186 le16_to_cpu(hdr.seq), len,
187 le16_to_cpu(hdr.type), hdr.flags);
188 if (len <= MAX_MBOXITEM_SIZE) {
189 int n = 0;
190 char printbuf[16 * 3 + 2];
191 unsigned char databuf[MAX_MBOXITEM_SIZE];
192 void __iomem *src = wmi_buffer(wil, d.addr) +
193 sizeof(struct wil6210_mbox_hdr);
194 /*
195 * No need to check @src for validity -
196 * we already validated @d.addr while
197 * reading header
198 */
199 wil_memcpy_fromio_32(databuf, src, len);
200 while (n < len) {
201 int l = min(len - n, 16);
202 hex_dump_to_buffer(databuf + n, l,
203 16, 1, printbuf,
204 sizeof(printbuf),
205 false);
206 seq_printf(s, " : %s\n", printbuf);
207 n += l;
208 }
209 }
210 } else {
211 seq_printf(s, "\n");
212 }
213 }
214 out:
215 seq_printf(s, "}\n");
216 }
217
218 static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
219 {
220 struct wil6210_priv *wil = s->private;
221
222 wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
223 offsetof(struct wil6210_mbox_ctl, tx));
224 wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
225 offsetof(struct wil6210_mbox_ctl, rx));
226
227 return 0;
228 }
229
230 static int wil_mbox_seq_open(struct inode *inode, struct file *file)
231 {
232 return single_open(file, wil_mbox_debugfs_show, inode->i_private);
233 }
234
235 static const struct file_operations fops_mbox = {
236 .open = wil_mbox_seq_open,
237 .release = single_release,
238 .read = seq_read,
239 .llseek = seq_lseek,
240 };
241
242 static int wil_debugfs_iomem_x32_set(void *data, u64 val)
243 {
244 iowrite32(val, (void __iomem *)data);
245 wmb(); /* make sure write propagated to HW */
246
247 return 0;
248 }
249
250 static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
251 {
252 *val = ioread32((void __iomem *)data);
253
254 return 0;
255 }
256
257 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
258 wil_debugfs_iomem_x32_set, "0x%08llx\n");
259
260 static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
261 umode_t mode,
262 struct dentry *parent,
263 void *value)
264 {
265 return debugfs_create_file(name, mode, parent, value,
266 &fops_iomem_x32);
267 }
268
269 static int wil_debugfs_ulong_set(void *data, u64 val)
270 {
271 *(ulong *)data = val;
272 return 0;
273 }
274 static int wil_debugfs_ulong_get(void *data, u64 *val)
275 {
276 *val = *(ulong *)data;
277 return 0;
278 }
279 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
280 wil_debugfs_ulong_set, "%llu\n");
281
282 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode,
283 struct dentry *parent,
284 ulong *value)
285 {
286 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong);
287 }
288
289 /**
290 * wil6210_debugfs_init_offset - create set of debugfs files
291 * @wil - driver's context, used for printing
292 * @dbg - directory on the debugfs, where files will be created
293 * @base - base address used in address calculation
294 * @tbl - table with file descriptions. Should be terminated with empty element.
295 *
296 * Creates files accordingly to the @tbl.
297 */
298 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
299 struct dentry *dbg, void *base,
300 const struct dbg_off * const tbl)
301 {
302 int i;
303
304 for (i = 0; tbl[i].name; i++) {
305 struct dentry *f = NULL;
306
307 switch (tbl[i].type) {
308 case doff_u32:
309 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg,
310 base + tbl[i].off);
311 break;
312 case doff_x32:
313 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
314 base + tbl[i].off);
315 break;
316 case doff_ulong:
317 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode,
318 dbg, base + tbl[i].off);
319 break;
320 case doff_io32:
321 f = wil_debugfs_create_iomem_x32(tbl[i].name,
322 tbl[i].mode, dbg,
323 base + tbl[i].off);
324 break;
325 }
326 if (IS_ERR_OR_NULL(f))
327 wil_err(wil, "Create file \"%s\": err %ld\n",
328 tbl[i].name, PTR_ERR(f));
329 }
330 }
331
332 static const struct dbg_off isr_off[] = {
333 {"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32},
334 {"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32},
335 {"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32},
336 {"ICS", S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32},
337 {"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32},
338 {"IMS", S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32},
339 {"IMC", S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32},
340 {},
341 };
342 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
343 const char *name,
344 struct dentry *parent, u32 off)
345 {
346 struct dentry *d = debugfs_create_dir(name, parent);
347
348 if (IS_ERR_OR_NULL(d))
349 return -ENODEV;
350
351 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off,
352 isr_off);
353
354 return 0;
355 }
356
357 static const struct dbg_off pseudo_isr_off[] = {
358 {"CAUSE", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32},
359 {"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32},
360 {"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32},
361 {},
362 };
363
364 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
365 struct dentry *parent)
366 {
367 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);
368
369 if (IS_ERR_OR_NULL(d))
370 return -ENODEV;
371
372 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
373 pseudo_isr_off);
374
375 return 0;
376 }
377
378 static const struct dbg_off itr_cnt_off[] = {
379 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32},
380 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32},
381 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32},
382 {},
383 };
384
385 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
386 struct dentry *parent)
387 {
388 struct dentry *d = debugfs_create_dir("ITR_CNT", parent);
389
390 if (IS_ERR_OR_NULL(d))
391 return -ENODEV;
392
393 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
394 itr_cnt_off);
395
396 return 0;
397 }
398
399 static int wil_memread_debugfs_show(struct seq_file *s, void *data)
400 {
401 struct wil6210_priv *wil = s->private;
402 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr));
403
404 if (a)
405 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, ioread32(a));
406 else
407 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);
408
409 return 0;
410 }
411
412 static int wil_memread_seq_open(struct inode *inode, struct file *file)
413 {
414 return single_open(file, wil_memread_debugfs_show, inode->i_private);
415 }
416
417 static const struct file_operations fops_memread = {
418 .open = wil_memread_seq_open,
419 .release = single_release,
420 .read = seq_read,
421 .llseek = seq_lseek,
422 };
423
424 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
425 size_t count, loff_t *ppos)
426 {
427 enum { max_count = 4096 };
428 struct debugfs_blob_wrapper *blob = file->private_data;
429 loff_t pos = *ppos;
430 size_t available = blob->size;
431 void *buf;
432 size_t ret;
433
434 if (pos < 0)
435 return -EINVAL;
436
437 if (pos >= available || !count)
438 return 0;
439
440 if (count > available - pos)
441 count = available - pos;
442 if (count > max_count)
443 count = max_count;
444
445 buf = kmalloc(count, GFP_KERNEL);
446 if (!buf)
447 return -ENOMEM;
448
449 wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data +
450 pos, count);
451
452 ret = copy_to_user(user_buf, buf, count);
453 kfree(buf);
454 if (ret == count)
455 return -EFAULT;
456
457 count -= ret;
458 *ppos = pos + count;
459
460 return count;
461 }
462
463 static const struct file_operations fops_ioblob = {
464 .read = wil_read_file_ioblob,
465 .open = simple_open,
466 .llseek = default_llseek,
467 };
468
469 static
470 struct dentry *wil_debugfs_create_ioblob(const char *name,
471 umode_t mode,
472 struct dentry *parent,
473 struct debugfs_blob_wrapper *blob)
474 {
475 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob);
476 }
477 /*---reset---*/
478 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
479 size_t len, loff_t *ppos)
480 {
481 struct wil6210_priv *wil = file->private_data;
482 struct net_device *ndev = wil_to_ndev(wil);
483
484 /**
485 * BUG:
486 * this code does NOT sync device state with the rest of system
487 * use with care, debug only!!!
488 */
489 rtnl_lock();
490 dev_close(ndev);
491 ndev->flags &= ~IFF_UP;
492 rtnl_unlock();
493 wil_reset(wil);
494
495 return len;
496 }
497
498 static const struct file_operations fops_reset = {
499 .write = wil_write_file_reset,
500 .open = simple_open,
501 };
502 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/
503 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
504 size_t len, loff_t *ppos)
505 {
506 struct wil6210_priv *wil = file->private_data;
507 int rc;
508 long channel;
509 bool on;
510
511 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
512 if (!kbuf)
513 return -ENOMEM;
514 if (copy_from_user(kbuf, buf, len)) {
515 kfree(kbuf);
516 return -EIO;
517 }
518
519 kbuf[len] = '\0';
520 rc = kstrtol(kbuf, 0, &channel);
521 kfree(kbuf);
522 if (rc)
523 return rc;
524
525 if ((channel < 0) || (channel > 4)) {
526 wil_err(wil, "Invalid channel %ld\n", channel);
527 return -EINVAL;
528 }
529 on = !!channel;
530
531 if (on) {
532 rc = wmi_set_channel(wil, (int)channel);
533 if (rc)
534 return rc;
535 }
536
537 rc = wmi_rxon(wil, on);
538 if (rc)
539 return rc;
540
541 return len;
542 }
543
544 static const struct file_operations fops_rxon = {
545 .write = wil_write_file_rxon,
546 .open = simple_open,
547 };
548 /*---tx_mgmt---*/
549 /* Write mgmt frame to this file to send it */
550 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
551 size_t len, loff_t *ppos)
552 {
553 struct wil6210_priv *wil = file->private_data;
554 struct wiphy *wiphy = wil_to_wiphy(wil);
555 struct wireless_dev *wdev = wil_to_wdev(wil);
556 struct cfg80211_mgmt_tx_params params;
557 int rc;
558
559 void *frame = kmalloc(len, GFP_KERNEL);
560 if (!frame)
561 return -ENOMEM;
562
563 if (copy_from_user(frame, buf, len))
564 return -EIO;
565
566 params.buf = frame;
567 params.len = len;
568 params.chan = wdev->preset_chandef.chan;
569
570 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);
571
572 kfree(frame);
573 wil_info(wil, "%s() -> %d\n", __func__, rc);
574
575 return len;
576 }
577
578 static const struct file_operations fops_txmgmt = {
579 .write = wil_write_file_txmgmt,
580 .open = simple_open,
581 };
582
583 /* Write WMI command (w/o mbox header) to this file to send it
584 * WMI starts from wil6210_mbox_hdr_wmi header
585 */
586 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
587 size_t len, loff_t *ppos)
588 {
589 struct wil6210_priv *wil = file->private_data;
590 struct wil6210_mbox_hdr_wmi *wmi;
591 void *cmd;
592 int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi);
593 u16 cmdid;
594 int rc, rc1;
595
596 if (cmdlen <= 0)
597 return -EINVAL;
598
599 wmi = kmalloc(len, GFP_KERNEL);
600 if (!wmi)
601 return -ENOMEM;
602
603 rc = simple_write_to_buffer(wmi, len, ppos, buf, len);
604 if (rc < 0)
605 return rc;
606
607 cmd = &wmi[1];
608 cmdid = le16_to_cpu(wmi->id);
609
610 rc1 = wmi_send(wil, cmdid, cmd, cmdlen);
611 kfree(wmi);
612
613 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1);
614
615 return rc;
616 }
617
618 static const struct file_operations fops_wmi = {
619 .write = wil_write_file_wmi,
620 .open = simple_open,
621 };
622
623 static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
624 const char *prefix)
625 {
626 char printbuf[16 * 3 + 2];
627 int i = 0;
628 while (i < len) {
629 int l = min(len - i, 16);
630 hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
631 sizeof(printbuf), false);
632 seq_printf(s, "%s%s\n", prefix, printbuf);
633 i += l;
634 }
635 }
636
637 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
638 {
639 int i = 0;
640 int len = skb_headlen(skb);
641 void *p = skb->data;
642 int nr_frags = skb_shinfo(skb)->nr_frags;
643
644 seq_printf(s, " len = %d\n", len);
645 wil_seq_hexdump(s, p, len, " : ");
646
647 if (nr_frags) {
648 seq_printf(s, " nr_frags = %d\n", nr_frags);
649 for (i = 0; i < nr_frags; i++) {
650 const struct skb_frag_struct *frag =
651 &skb_shinfo(skb)->frags[i];
652
653 len = skb_frag_size(frag);
654 p = skb_frag_address_safe(frag);
655 seq_printf(s, " [%2d] : len = %d\n", i, len);
656 wil_seq_hexdump(s, p, len, " : ");
657 }
658 }
659 }
660
661 /*---------Tx/Rx descriptor------------*/
662 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
663 {
664 struct wil6210_priv *wil = s->private;
665 struct vring *vring;
666 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS);
667 if (tx)
668 vring = &(wil->vring_tx[dbg_vring_index]);
669 else
670 vring = &wil->vring_rx;
671
672 if (!vring->va) {
673 if (tx)
674 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index);
675 else
676 seq_puts(s, "No Rx VRING\n");
677 return 0;
678 }
679
680 if (dbg_txdesc_index < vring->size) {
681 /* use struct vring_tx_desc for Rx as well,
682 * only field used, .dma.length, is the same
683 */
684 volatile struct vring_tx_desc *d =
685 &(vring->va[dbg_txdesc_index].tx);
686 volatile u32 *u = (volatile u32 *)d;
687 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb;
688
689 if (tx)
690 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index,
691 dbg_txdesc_index);
692 else
693 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index);
694 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
695 u[0], u[1], u[2], u[3]);
696 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
697 u[4], u[5], u[6], u[7]);
698 seq_printf(s, " SKB = 0x%p\n", skb);
699
700 if (skb) {
701 skb_get(skb);
702 wil_seq_print_skb(s, skb);
703 kfree_skb(skb);
704 }
705 seq_printf(s, "}\n");
706 } else {
707 if (tx)
708 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
709 dbg_vring_index, dbg_txdesc_index,
710 vring->size);
711 else
712 seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
713 dbg_txdesc_index, vring->size);
714 }
715
716 return 0;
717 }
718
719 static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
720 {
721 return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
722 }
723
724 static const struct file_operations fops_txdesc = {
725 .open = wil_txdesc_seq_open,
726 .release = single_release,
727 .read = seq_read,
728 .llseek = seq_lseek,
729 };
730
731 /*---------beamforming------------*/
732 static char *wil_bfstatus_str(u32 status)
733 {
734 switch (status) {
735 case 0:
736 return "Failed";
737 case 1:
738 return "OK";
739 case 2:
740 return "Retrying";
741 default:
742 return "??";
743 }
744 }
745
746 static bool is_all_zeros(void * const x_, size_t sz)
747 {
748 /* if reply is all-0, ignore this CID */
749 u32 *x = x_;
750 int n;
751
752 for (n = 0; n < sz / sizeof(*x); n++)
753 if (x[n])
754 return false;
755
756 return true;
757 }
758
759 static int wil_bf_debugfs_show(struct seq_file *s, void *data)
760 {
761 int rc;
762 int i;
763 struct wil6210_priv *wil = s->private;
764 struct wmi_notify_req_cmd cmd = {
765 .interval_usec = 0,
766 };
767 struct {
768 struct wil6210_mbox_hdr_wmi wmi;
769 struct wmi_notify_req_done_event evt;
770 } __packed reply;
771
772 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
773 u32 status;
774
775 cmd.cid = i;
776 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
777 WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
778 sizeof(reply), 20);
779 /* if reply is all-0, ignore this CID */
780 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
781 continue;
782
783 status = le32_to_cpu(reply.evt.status);
784 seq_printf(s, "CID %d {\n"
785 " TSF = 0x%016llx\n"
786 " TxMCS = %2d TxTpt = %4d\n"
787 " SQI = %4d\n"
788 " Status = 0x%08x %s\n"
789 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
790 " Goodput(rx:tx) %4d:%4d\n"
791 "}\n",
792 i,
793 le64_to_cpu(reply.evt.tsf),
794 le16_to_cpu(reply.evt.bf_mcs),
795 le32_to_cpu(reply.evt.tx_tpt),
796 reply.evt.sqi,
797 status, wil_bfstatus_str(status),
798 le16_to_cpu(reply.evt.my_rx_sector),
799 le16_to_cpu(reply.evt.my_tx_sector),
800 le16_to_cpu(reply.evt.other_rx_sector),
801 le16_to_cpu(reply.evt.other_tx_sector),
802 le32_to_cpu(reply.evt.rx_goodput),
803 le32_to_cpu(reply.evt.tx_goodput));
804 }
805 return 0;
806 }
807
808 static int wil_bf_seq_open(struct inode *inode, struct file *file)
809 {
810 return single_open(file, wil_bf_debugfs_show, inode->i_private);
811 }
812
813 static const struct file_operations fops_bf = {
814 .open = wil_bf_seq_open,
815 .release = single_release,
816 .read = seq_read,
817 .llseek = seq_lseek,
818 };
819 /*---------SSID------------*/
820 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
821 size_t count, loff_t *ppos)
822 {
823 struct wil6210_priv *wil = file->private_data;
824 struct wireless_dev *wdev = wil_to_wdev(wil);
825
826 return simple_read_from_buffer(user_buf, count, ppos,
827 wdev->ssid, wdev->ssid_len);
828 }
829
830 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
831 size_t count, loff_t *ppos)
832 {
833 struct wil6210_priv *wil = file->private_data;
834 struct wireless_dev *wdev = wil_to_wdev(wil);
835 struct net_device *ndev = wil_to_ndev(wil);
836
837 if (*ppos != 0) {
838 wil_err(wil, "Unable to set SSID substring from [%d]\n",
839 (int)*ppos);
840 return -EINVAL;
841 }
842
843 if (count > sizeof(wdev->ssid)) {
844 wil_err(wil, "SSID too long, len = %d\n", (int)count);
845 return -EINVAL;
846 }
847 if (netif_running(ndev)) {
848 wil_err(wil, "Unable to change SSID on running interface\n");
849 return -EINVAL;
850 }
851
852 wdev->ssid_len = count;
853 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
854 buf, count);
855 }
856
857 static const struct file_operations fops_ssid = {
858 .read = wil_read_file_ssid,
859 .write = wil_write_file_ssid,
860 .open = simple_open,
861 };
862
863 /*---------temp------------*/
864 static void print_temp(struct seq_file *s, const char *prefix, u32 t)
865 {
866 switch (t) {
867 case 0:
868 case ~(u32)0:
869 seq_printf(s, "%s N/A\n", prefix);
870 break;
871 default:
872 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
873 break;
874 }
875 }
876
877 static int wil_temp_debugfs_show(struct seq_file *s, void *data)
878 {
879 struct wil6210_priv *wil = s->private;
880 u32 t_m, t_r;
881
882 int rc = wmi_get_temperature(wil, &t_m, &t_r);
883 if (rc) {
884 seq_printf(s, "Failed\n");
885 return 0;
886 }
887
888 print_temp(s, "T_mac =", t_m);
889 print_temp(s, "T_radio =", t_r);
890
891 return 0;
892 }
893
894 static int wil_temp_seq_open(struct inode *inode, struct file *file)
895 {
896 return single_open(file, wil_temp_debugfs_show, inode->i_private);
897 }
898
899 static const struct file_operations fops_temp = {
900 .open = wil_temp_seq_open,
901 .release = single_release,
902 .read = seq_read,
903 .llseek = seq_lseek,
904 };
905
906 /*---------freq------------*/
907 static int wil_freq_debugfs_show(struct seq_file *s, void *data)
908 {
909 struct wil6210_priv *wil = s->private;
910 struct wireless_dev *wdev = wil_to_wdev(wil);
911 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
912
913 seq_printf(s, "Freq = %d\n", freq);
914
915 return 0;
916 }
917
918 static int wil_freq_seq_open(struct inode *inode, struct file *file)
919 {
920 return single_open(file, wil_freq_debugfs_show, inode->i_private);
921 }
922
923 static const struct file_operations fops_freq = {
924 .open = wil_freq_seq_open,
925 .release = single_release,
926 .read = seq_read,
927 .llseek = seq_lseek,
928 };
929
930 /*---------link------------*/
931 static int wil_link_debugfs_show(struct seq_file *s, void *data)
932 {
933 struct wil6210_priv *wil = s->private;
934 struct station_info sinfo;
935 int i, rc;
936
937 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
938 struct wil_sta_info *p = &wil->sta[i];
939 char *status = "unknown";
940 switch (p->status) {
941 case wil_sta_unused:
942 status = "unused ";
943 break;
944 case wil_sta_conn_pending:
945 status = "pending ";
946 break;
947 case wil_sta_connected:
948 status = "connected";
949 break;
950 }
951 seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status,
952 (p->data_port_open ? " data_port_open" : ""));
953
954 if (p->status == wil_sta_connected) {
955 rc = wil_cid_fill_sinfo(wil, i, &sinfo);
956 if (rc)
957 return rc;
958
959 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs);
960 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs);
961 seq_printf(s, " SQ = %d\n", sinfo.signal);
962 }
963 }
964
965 return 0;
966 }
967
968 static int wil_link_seq_open(struct inode *inode, struct file *file)
969 {
970 return single_open(file, wil_link_debugfs_show, inode->i_private);
971 }
972
973 static const struct file_operations fops_link = {
974 .open = wil_link_seq_open,
975 .release = single_release,
976 .read = seq_read,
977 .llseek = seq_lseek,
978 };
979
980 /*---------info------------*/
981 static int wil_info_debugfs_show(struct seq_file *s, void *data)
982 {
983 struct wil6210_priv *wil = s->private;
984 struct net_device *ndev = wil_to_ndev(wil);
985 int is_ac = power_supply_is_system_supplied();
986 int rx = atomic_xchg(&wil->isr_count_rx, 0);
987 int tx = atomic_xchg(&wil->isr_count_tx, 0);
988 static ulong rxf_old, txf_old;
989 ulong rxf = ndev->stats.rx_packets;
990 ulong txf = ndev->stats.tx_packets;
991 unsigned int i;
992
993 /* >0 : AC; 0 : battery; <0 : error */
994 seq_printf(s, "AC powered : %d\n", is_ac);
995 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
996 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
997 rxf_old = rxf;
998 txf_old = txf;
999
1000
1001 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
1002 " " __stringify(x) : ""
1003
1004 for (i = 0; i < ndev->num_tx_queues; i++) {
1005 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
1006 unsigned long state = txq->state;
1007
1008 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
1009 CHECK_QSTATE(DRV_XOFF),
1010 CHECK_QSTATE(STACK_XOFF),
1011 CHECK_QSTATE(FROZEN)
1012 );
1013 }
1014 #undef CHECK_QSTATE
1015 return 0;
1016 }
1017
1018 static int wil_info_seq_open(struct inode *inode, struct file *file)
1019 {
1020 return single_open(file, wil_info_debugfs_show, inode->i_private);
1021 }
1022
1023 static const struct file_operations fops_info = {
1024 .open = wil_info_seq_open,
1025 .release = single_release,
1026 .read = seq_read,
1027 .llseek = seq_lseek,
1028 };
1029
1030 /*---------Station matrix------------*/
1031 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
1032 {
1033 int i;
1034 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
1035 seq_printf(s, "0x%03x [", r->head_seq_num);
1036 for (i = 0; i < r->buf_size; i++) {
1037 if (i == index)
1038 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
1039 else
1040 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
1041 }
1042 seq_printf(s, "] last drop 0x%03x\n", r->ssn_last_drop);
1043 }
1044
1045 static int wil_sta_debugfs_show(struct seq_file *s, void *data)
1046 {
1047 struct wil6210_priv *wil = s->private;
1048 int i, tid;
1049
1050 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1051 struct wil_sta_info *p = &wil->sta[i];
1052 char *status = "unknown";
1053 switch (p->status) {
1054 case wil_sta_unused:
1055 status = "unused ";
1056 break;
1057 case wil_sta_conn_pending:
1058 status = "pending ";
1059 break;
1060 case wil_sta_connected:
1061 status = "connected";
1062 break;
1063 }
1064 seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status,
1065 (p->data_port_open ? " data_port_open" : ""));
1066
1067 if (p->status == wil_sta_connected) {
1068 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
1069 struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
1070 if (r) {
1071 seq_printf(s, "[%2d] ", tid);
1072 wil_print_rxtid(s, r);
1073 }
1074 }
1075 }
1076 }
1077
1078 return 0;
1079 }
1080
1081 static int wil_sta_seq_open(struct inode *inode, struct file *file)
1082 {
1083 return single_open(file, wil_sta_debugfs_show, inode->i_private);
1084 }
1085
1086 static const struct file_operations fops_sta = {
1087 .open = wil_sta_seq_open,
1088 .release = single_release,
1089 .read = seq_read,
1090 .llseek = seq_lseek,
1091 };
1092
1093 /*----------------*/
1094 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
1095 struct dentry *dbg)
1096 {
1097 int i;
1098 char name[32];
1099
1100 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
1101 struct debugfs_blob_wrapper *blob = &wil->blobs[i];
1102 const struct fw_map *map = &fw_mapping[i];
1103
1104 if (!map->name)
1105 continue;
1106
1107 blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
1108 blob->size = map->to - map->from;
1109 snprintf(name, sizeof(name), "blob_%s", map->name);
1110 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob);
1111 }
1112 }
1113
1114 /* misc files */
1115 static const struct {
1116 const char *name;
1117 umode_t mode;
1118 const struct file_operations *fops;
1119 } dbg_files[] = {
1120 {"mbox", S_IRUGO, &fops_mbox},
1121 {"vrings", S_IRUGO, &fops_vring},
1122 {"stations", S_IRUGO, &fops_sta},
1123 {"desc", S_IRUGO, &fops_txdesc},
1124 {"bf", S_IRUGO, &fops_bf},
1125 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid},
1126 {"mem_val", S_IRUGO, &fops_memread},
1127 {"reset", S_IWUSR, &fops_reset},
1128 {"rxon", S_IWUSR, &fops_rxon},
1129 {"tx_mgmt", S_IWUSR, &fops_txmgmt},
1130 {"wmi_send", S_IWUSR, &fops_wmi},
1131 {"temp", S_IRUGO, &fops_temp},
1132 {"freq", S_IRUGO, &fops_freq},
1133 {"link", S_IRUGO, &fops_link},
1134 {"info", S_IRUGO, &fops_info},
1135 };
1136
1137 static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
1138 struct dentry *dbg)
1139 {
1140 int i;
1141
1142 for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
1143 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg,
1144 wil, dbg_files[i].fops);
1145 }
1146
1147 /* interrupt control blocks */
1148 static const struct {
1149 const char *name;
1150 u32 icr_off;
1151 } dbg_icr[] = {
1152 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)},
1153 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)},
1154 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)},
1155 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)},
1156 };
1157
1158 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
1159 struct dentry *dbg)
1160 {
1161 int i;
1162
1163 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
1164 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg,
1165 dbg_icr[i].icr_off);
1166 }
1167
1168 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
1169 offsetof(struct wil6210_priv, name), type}
1170
1171 /* fields in struct wil6210_priv */
1172 static const struct dbg_off dbg_wil_off[] = {
1173 WIL_FIELD(secure_pcp, S_IRUGO | S_IWUSR, doff_u32),
1174 WIL_FIELD(status, S_IRUGO | S_IWUSR, doff_ulong),
1175 WIL_FIELD(fw_version, S_IRUGO, doff_u32),
1176 WIL_FIELD(hw_version, S_IRUGO, doff_x32),
1177 {},
1178 };
1179
1180 static const struct dbg_off dbg_wil_regs[] = {
1181 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
1182 doff_io32},
1183 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
1184 {},
1185 };
1186
1187 /* static parameters */
1188 static const struct dbg_off dbg_statics[] = {
1189 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32},
1190 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32},
1191 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32},
1192 {},
1193 };
1194
1195 int wil6210_debugfs_init(struct wil6210_priv *wil)
1196 {
1197 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
1198 wil_to_wiphy(wil)->debugfsdir);
1199
1200 if (IS_ERR_OR_NULL(dbg))
1201 return -ENODEV;
1202
1203 wil6210_debugfs_init_files(wil, dbg);
1204 wil6210_debugfs_init_isr(wil, dbg);
1205 wil6210_debugfs_init_blobs(wil, dbg);
1206 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off);
1207 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
1208 dbg_wil_regs);
1209 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);
1210
1211 wil6210_debugfs_create_pseudo_ISR(wil, dbg);
1212
1213 wil6210_debugfs_create_ITR_CNT(wil, dbg);
1214
1215 return 0;
1216 }
1217
1218 void wil6210_debugfs_remove(struct wil6210_priv *wil)
1219 {
1220 debugfs_remove_recursive(wil->debug);
1221 wil->debug = NULL;
1222 }
Linux kernel - Deliverables
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