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wil6210: convert debugfs to the table mode
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / debugfs.c
CommitLineData
2be7d22f 1/*
02525a79 2 * Copyright (c) 2012-2014 Qualcomm Atheros, Inc.
2be7d22f
VK		 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>
84bb29b7 22#include <linux/power_supply.h>
2be7d22f
VK		 23
24#include "wil6210.h"
25#include "txrx.h"
26
27/* Nasty hack. Better have per device instances */
28static u32 mem_addr;
29static u32 dbg_txdesc_index;
af31cb5a 30static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */
2be7d22f 31
b7cde470
VK		 32enum dbg_off_type {
33 doff_u32 = 0,
34 doff_x32 = 1,
35 doff_ulong = 2,
36 doff_io32 = 3,
37};
38
39/* offset to "wil" */
40struct dbg_off {
41 const char *name;
42 umode_t mode;
43 ulong off;
44 enum dbg_off_type type;
45};
46
2be7d22f 47static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
59f7c0a9
VK		 48 const char *name, struct vring *vring,
49 char _s, char _h)
2be7d22f
VK		 50{
51 void __iomem *x = wmi_addr(wil, vring->hwtail);
52
53 seq_printf(s, "VRING %s = {\n", name);
39c52ee8 54 seq_printf(s, " pa = %pad\n", &vring->pa);
2be7d22f
VK		 55 seq_printf(s, " va = 0x%p\n", vring->va);
56 seq_printf(s, " size = %d\n", vring->size);
57 seq_printf(s, " swtail = %d\n", vring->swtail);
58 seq_printf(s, " swhead = %d\n", vring->swhead);
59 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail);
60 if (x)
61 seq_printf(s, "0x%08x\n", ioread32(x));
62 else
63 seq_printf(s, "???\n");
64
65 if (vring->va && (vring->size < 1025)) {
66 uint i;
67 for (i = 0; i < vring->size; i++) {
68 volatile struct vring_tx_desc *d = &vring->va[i].tx;
69 if ((i % 64) == 0 && (i != 0))
70 seq_printf(s, "\n");
59f7c0a9
VK		 71 seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
72 _s : (vring->ctx[i].skb ? _h : 'h'));
2be7d22f
VK		 73 }
74 seq_printf(s, "\n");
75 }
76 seq_printf(s, "}\n");
77}
78
79static int wil_vring_debugfs_show(struct seq_file *s, void *data)
80{
81 uint i;
82 struct wil6210_priv *wil = s->private;
83
59f7c0a9 84 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_');
2be7d22f
VK		 85
86 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
87 struct vring *vring = &(wil->vring_tx[i]);
7c0acf86
VK		 88 struct vring_tx_data *txdata = &wil->vring_tx_data[i];
89
2be7d22f 90 if (vring->va) {
3df2cd36
VK		 91 int cid = wil->vring2cid_tid[i][0];
92 int tid = wil->vring2cid_tid[i][1];
67c3e1b4
VK		 93 u32 swhead = vring->swhead;
94 u32 swtail = vring->swtail;
95 int used = (vring->size + swhead - swtail)
96 % vring->size;
97 int avail = vring->size - used - 1;
2be7d22f 98 char name[10];
7c0acf86
VK		 99 /* performance monitoring */
100 cycles_t now = get_cycles();
e48b1790 101 cycles_t idle = txdata->idle * 100;
7c0acf86
VK		 102 cycles_t total = now - txdata->begin;
103
e48b1790 104 do_div(idle, total);
7c0acf86
VK		 105 txdata->begin = now;
106 txdata->idle = 0ULL;
107
2be7d22f 108 snprintf(name, sizeof(name), "tx_%2d", i);
3df2cd36 109
7c0acf86
VK		 110 seq_printf(s, "\n%pM CID %d TID %d [%3d|%3d] idle %3d%%\n",
111 wil->sta[cid].addr, cid, tid, used, avail,
e48b1790 112 (int)idle);
7c0acf86 113
59f7c0a9 114 wil_print_vring(s, wil, name, vring, '_', 'H');
2be7d22f
VK		 115 }
116 }
117
118 return 0;
119}
120
121static int wil_vring_seq_open(struct inode *inode, struct file *file)
122{
123 return single_open(file, wil_vring_debugfs_show, inode->i_private);
124}
125
126static const struct file_operations fops_vring = {
127 .open = wil_vring_seq_open,
128 .release = single_release,
129 .read = seq_read,
130 .llseek = seq_lseek,
131};
132
133static void wil_print_ring(struct seq_file *s, const char *prefix,
134 void __iomem *off)
135{
136 struct wil6210_priv *wil = s->private;
137 struct wil6210_mbox_ring r;
138 int rsize;
139 uint i;
140
141 wil_memcpy_fromio_32(&r, off, sizeof(r));
142 wil_mbox_ring_le2cpus(&r);
143 /*
144 * we just read memory block from NIC. This memory may be
145 * garbage. Check validity before using it.
146 */
147 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
148
149 seq_printf(s, "ring %s = {\n", prefix);
150 seq_printf(s, " base = 0x%08x\n", r.base);
151 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize);
152 seq_printf(s, " tail = 0x%08x\n", r.tail);
153 seq_printf(s, " head = 0x%08x\n", r.head);
154 seq_printf(s, " entry size = %d\n", r.entry_size);
155
156 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
157 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n",
158 sizeof(struct wil6210_mbox_ring_desc));
159 goto out;
160 }
161
162 if (!wmi_addr(wil, r.base) ||
163 !wmi_addr(wil, r.tail) ||
164 !wmi_addr(wil, r.head)) {
165 seq_printf(s, " ??? pointers are garbage?\n");
166 goto out;
167 }
168
169 for (i = 0; i < rsize; i++) {
170 struct wil6210_mbox_ring_desc d;
171 struct wil6210_mbox_hdr hdr;
172 size_t delta = i * sizeof(d);
173 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
174
175 wil_memcpy_fromio_32(&d, x, sizeof(d));
176
177 seq_printf(s, " [%2x] %s %s%s 0x%08x", i,
178 d.sync ? "F" : "E",
179 (r.tail - r.base == delta) ? "t" : " ",
180 (r.head - r.base == delta) ? "h" : " ",
181 le32_to_cpu(d.addr));
182 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
183 u16 len = le16_to_cpu(hdr.len);
184 seq_printf(s, " -> %04x %04x %04x %02x\n",
185 le16_to_cpu(hdr.seq), len,
186 le16_to_cpu(hdr.type), hdr.flags);
187 if (len <= MAX_MBOXITEM_SIZE) {
188 int n = 0;
5d21608a 189 char printbuf[16 * 3 + 2];
2be7d22f
VK		 190 unsigned char databuf[MAX_MBOXITEM_SIZE];
191 void __iomem *src = wmi_buffer(wil, d.addr) +
192 sizeof(struct wil6210_mbox_hdr);
193 /*
194 * No need to check @src for validity -
195 * we already validated @d.addr while
196 * reading header
197 */
198 wil_memcpy_fromio_32(databuf, src, len);
199 while (n < len) {
200 int l = min(len - n, 16);
201 hex_dump_to_buffer(databuf + n, l,
202 16, 1, printbuf,
203 sizeof(printbuf),
204 false);
205 seq_printf(s, " : %s\n", printbuf);
206 n += l;
207 }
208 }
209 } else {
210 seq_printf(s, "\n");
211 }
212 }
213 out:
214 seq_printf(s, "}\n");
215}
216
217static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
218{
219 struct wil6210_priv *wil = s->private;
220
221 wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
222 offsetof(struct wil6210_mbox_ctl, tx));
223 wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
224 offsetof(struct wil6210_mbox_ctl, rx));
225
226 return 0;
227}
228
229static int wil_mbox_seq_open(struct inode *inode, struct file *file)
230{
231 return single_open(file, wil_mbox_debugfs_show, inode->i_private);
232}
233
234static const struct file_operations fops_mbox = {
235 .open = wil_mbox_seq_open,
236 .release = single_release,
237 .read = seq_read,
238 .llseek = seq_lseek,
239};
240
241static int wil_debugfs_iomem_x32_set(void *data, u64 val)
242{
243 iowrite32(val, (void __iomem *)data);
244 wmb(); /* make sure write propagated to HW */
245
246 return 0;
247}
248
249static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
250{
251 *val = ioread32((void __iomem *)data);
252
253 return 0;
254}
255
256DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
257 wil_debugfs_iomem_x32_set, "0x%08llx\n");
258
259static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
0ecc833b 260 umode_t mode,
2be7d22f 261 struct dentry *parent,
b7cde470 262 void *value)
2be7d22f 263{
b7cde470 264 return debugfs_create_file(name, mode, parent, value,
2be7d22f
VK		 265 &fops_iomem_x32);
266}
267
3de6cf20
VK		 268static int wil_debugfs_ulong_set(void *data, u64 val)
269{
270 *(ulong *)data = val;
271 return 0;
272}
273static int wil_debugfs_ulong_get(void *data, u64 *val)
274{
275 *val = *(ulong *)data;
276 return 0;
277}
278DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
279 wil_debugfs_ulong_set, "%llu\n");
280
281static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode,
282 struct dentry *parent,
283 ulong *value)
284{
285 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong);
286}
287
b7cde470
VK		 288/**
289 * wil6210_debugfs_init_offset - create set of debugfs files
290 * @wil - driver's context, used for printing
291 * @dbg - directory on the debugfs, where files will be created
292 * @base - base address used in address calculation
293 * @tbl - table with file descriptions. Should be terminated with empty element.
294 *
295 * Creates files accordingly to the @tbl.
296 */
297static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
298 struct dentry *dbg, void *base,
299 const struct dbg_off * const tbl)
300{
301 int i;
302
303 for (i = 0; tbl[i].name; i++) {
304 struct dentry *f = NULL;
305
306 switch (tbl[i].type) {
307 case doff_u32:
308 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg,
309 base + tbl[i].off);
310 break;
311 case doff_x32:
312 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
313 base + tbl[i].off);
314 break;
315 case doff_ulong:
316 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode,
317 dbg, base + tbl[i].off);
318 break;
319 case doff_io32:
320 f = wil_debugfs_create_iomem_x32(tbl[i].name,
321 tbl[i].mode, dbg,
322 base + tbl[i].off);
323 break;
324 }
325 if (IS_ERR_OR_NULL(f))
326 wil_err(wil, "Create file \"%s\": err %ld\n",
327 tbl[i].name, PTR_ERR(f));
328 }
329}
330
331static const struct dbg_off isr_off[] = {
332 {"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32},
333 {"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32},
334 {"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32},
335 {"ICS", S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32},
336 {"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32},
337 {"IMS", S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32},
338 {"IMC", S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32},
339 {},
340};
2be7d22f
VK		 341static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
342 const char *name,
343 struct dentry *parent, u32 off)
344{
345 struct dentry *d = debugfs_create_dir(name, parent);
346
347 if (IS_ERR_OR_NULL(d))
348 return -ENODEV;
349
b7cde470
VK		 350 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off,
351 isr_off);
2be7d22f
VK		 352
353 return 0;
354}
355
b7cde470
VK		 356static const struct dbg_off pseudo_isr_off[] = {
357 {"CAUSE", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32},
358 {"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32},
359 {"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32},
360 {},
361};
362
2be7d22f
VK		 363static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
364 struct dentry *parent)
365{
366 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);
367
368 if (IS_ERR_OR_NULL(d))
369 return -ENODEV;
370
b7cde470
VK		 371 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
372 pseudo_isr_off);
2be7d22f
VK		 373
374 return 0;
375}
376
b7cde470
VK		 377static const struct dbg_off itr_cnt_off[] = {
378 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32},
379 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32},
380 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32},
381 {},
382};
383
2be7d22f
VK		 384static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
385 struct dentry *parent)
386{
387 struct dentry *d = debugfs_create_dir("ITR_CNT", parent);
388
389 if (IS_ERR_OR_NULL(d))
390 return -ENODEV;
391
b7cde470
VK		 392 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
393 itr_cnt_off);
2be7d22f
VK		 394
395 return 0;
396}
397
398static int wil_memread_debugfs_show(struct seq_file *s, void *data)
399{
400 struct wil6210_priv *wil = s->private;
401 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr));
402
403 if (a)
404 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, ioread32(a));
405 else
406 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);
407
408 return 0;
409}
410
411static int wil_memread_seq_open(struct inode *inode, struct file *file)
412{
413 return single_open(file, wil_memread_debugfs_show, inode->i_private);
414}
415
416static const struct file_operations fops_memread = {
417 .open = wil_memread_seq_open,
418 .release = single_release,
419 .read = seq_read,
420 .llseek = seq_lseek,
421};
422
2be7d22f
VK		 423static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
424 size_t count, loff_t *ppos)
425{
426 enum { max_count = 4096 };
427 struct debugfs_blob_wrapper *blob = file->private_data;
428 loff_t pos = *ppos;
429 size_t available = blob->size;
430 void *buf;
431 size_t ret;
432
433 if (pos < 0)
434 return -EINVAL;
435
436 if (pos >= available || !count)
437 return 0;
438
439 if (count > available - pos)
440 count = available - pos;
441 if (count > max_count)
442 count = max_count;
443
444 buf = kmalloc(count, GFP_KERNEL);
445 if (!buf)
446 return -ENOMEM;
447
448 wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data +
449 pos, count);
450
451 ret = copy_to_user(user_buf, buf, count);
452 kfree(buf);
453 if (ret == count)
454 return -EFAULT;
455
456 count -= ret;
457 *ppos = pos + count;
458
459 return count;
460}
461
462static const struct file_operations fops_ioblob = {
463 .read = wil_read_file_ioblob,
93ecbd64 464 .open = simple_open,
2be7d22f
VK		 465 .llseek = default_llseek,
466};
467
468static
469struct dentry *wil_debugfs_create_ioblob(const char *name,
0ecc833b 470 umode_t mode,
2be7d22f
VK		 471 struct dentry *parent,
472 struct debugfs_blob_wrapper *blob)
473{
474 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob);
475}
476/*---reset---*/
477static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
478 size_t len, loff_t *ppos)
479{
480 struct wil6210_priv *wil = file->private_data;
481 struct net_device *ndev = wil_to_ndev(wil);
482
483 /**
484 * BUG:
485 * this code does NOT sync device state with the rest of system
486 * use with care, debug only!!!
487 */
488 rtnl_lock();
489 dev_close(ndev);
490 ndev->flags &= ~IFF_UP;
491 rtnl_unlock();
492 wil_reset(wil);
493
494 return len;
495}
496
497static const struct file_operations fops_reset = {
498 .write = wil_write_file_reset,
93ecbd64 499 .open = simple_open,
2be7d22f 500};
0b39aaf2
VK		 501/*---write channel 1..4 to rxon for it, 0 to rxoff---*/
502static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
503 size_t len, loff_t *ppos)
504{
505 struct wil6210_priv *wil = file->private_data;
506 int rc;
507 long channel;
508 bool on;
509
510 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
511 if (!kbuf)
512 return -ENOMEM;
359ee627
VK		 513 if (copy_from_user(kbuf, buf, len)) {
514 kfree(kbuf);
0b39aaf2 515 return -EIO;
359ee627 516 }
0b39aaf2
VK		 517
518 kbuf[len] = '\0';
519 rc = kstrtol(kbuf, 0, &channel);
520 kfree(kbuf);
521 if (rc)
522 return rc;
523
524 if ((channel < 0) || (channel > 4)) {
525 wil_err(wil, "Invalid channel %ld\n", channel);
526 return -EINVAL;
527 }
528 on = !!channel;
529
530 if (on) {
531 rc = wmi_set_channel(wil, (int)channel);
532 if (rc)
533 return rc;
534 }
535
536 rc = wmi_rxon(wil, on);
537 if (rc)
538 return rc;
539
540 return len;
541}
542
543static const struct file_operations fops_rxon = {
544 .write = wil_write_file_rxon,
545 .open = simple_open,
546};
547/*---tx_mgmt---*/
548/* Write mgmt frame to this file to send it */
549static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
550 size_t len, loff_t *ppos)
551{
552 struct wil6210_priv *wil = file->private_data;
553 struct wiphy *wiphy = wil_to_wiphy(wil);
554 struct wireless_dev *wdev = wil_to_wdev(wil);
555 struct cfg80211_mgmt_tx_params params;
556 int rc;
557
558 void *frame = kmalloc(len, GFP_KERNEL);
559 if (!frame)
560 return -ENOMEM;
561
562 if (copy_from_user(frame, buf, len))
563 return -EIO;
564
565 params.buf = frame;
566 params.len = len;
567 params.chan = wdev->preset_chandef.chan;
568
569 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);
570
571 kfree(frame);
572 wil_info(wil, "%s() -> %d\n", __func__, rc);
573
574 return len;
575}
576
577static const struct file_operations fops_txmgmt = {
578 .write = wil_write_file_txmgmt,
579 .open = simple_open,
580};
2be7d22f 581
ff974e40
VK		 582/* Write WMI command (w/o mbox header) to this file to send it
583 * WMI starts from wil6210_mbox_hdr_wmi header
584 */
585static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
586 size_t len, loff_t *ppos)
587{
588 struct wil6210_priv *wil = file->private_data;
589 struct wil6210_mbox_hdr_wmi *wmi;
590 void *cmd;
591 int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi);
592 u16 cmdid;
593 int rc, rc1;
594
595 if (cmdlen <= 0)
596 return -EINVAL;
597
598 wmi = kmalloc(len, GFP_KERNEL);
599 if (!wmi)
600 return -ENOMEM;
601
602 rc = simple_write_to_buffer(wmi, len, ppos, buf, len);
603 if (rc < 0)
604 return rc;
605
606 cmd = &wmi[1];
607 cmdid = le16_to_cpu(wmi->id);
608
609 rc1 = wmi_send(wil, cmdid, cmd, cmdlen);
610 kfree(wmi);
611
612 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1);
613
614 return rc;
615}
616
617static const struct file_operations fops_wmi = {
618 .write = wil_write_file_wmi,
619 .open = simple_open,
620};
621
c236658f
VK		 622static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
623 const char *prefix)
624{
625 char printbuf[16 * 3 + 2];
626 int i = 0;
627 while (i < len) {
628 int l = min(len - i, 16);
629 hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
630 sizeof(printbuf), false);
631 seq_printf(s, "%s%s\n", prefix, printbuf);
632 i += l;
633 }
634}
635
636static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
637{
638 int i = 0;
639 int len = skb_headlen(skb);
640 void *p = skb->data;
641 int nr_frags = skb_shinfo(skb)->nr_frags;
642
643 seq_printf(s, " len = %d\n", len);
644 wil_seq_hexdump(s, p, len, " : ");
645
646 if (nr_frags) {
647 seq_printf(s, " nr_frags = %d\n", nr_frags);
648 for (i = 0; i < nr_frags; i++) {
649 const struct skb_frag_struct *frag =
650 &skb_shinfo(skb)->frags[i];
651
652 len = skb_frag_size(frag);
653 p = skb_frag_address_safe(frag);
654 seq_printf(s, " [%2d] : len = %d\n", i, len);
655 wil_seq_hexdump(s, p, len, " : ");
656 }
657 }
658}
659
3a85543e 660/*---------Tx/Rx descriptor------------*/
2be7d22f
VK		 661static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
662{
663 struct wil6210_priv *wil = s->private;
3a85543e 664 struct vring *vring;
af31cb5a
VK		 665 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS);
666 if (tx)
3a85543e
VK		 667 vring = &(wil->vring_tx[dbg_vring_index]);
668 else
669 vring = &wil->vring_rx;
2be7d22f
VK		 670
671 if (!vring->va) {
af31cb5a 672 if (tx)
3a85543e
VK		 673 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index);
674 else
675 seq_puts(s, "No Rx VRING\n");
2be7d22f
VK		 676 return 0;
677 }
678
679 if (dbg_txdesc_index < vring->size) {
3a85543e
VK		 680 /* use struct vring_tx_desc for Rx as well,
681 * only field used, .dma.length, is the same
682 */
2be7d22f
VK		 683 volatile struct vring_tx_desc *d =
684 &(vring->va[dbg_txdesc_index].tx);
685 volatile u32 *u = (volatile u32 *)d;
f88f113a 686 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb;
2be7d22f 687
af31cb5a 688 if (tx)
3a85543e
VK		 689 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index,
690 dbg_txdesc_index);
691 else
692 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index);
2be7d22f
VK		 693 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
694 u[0], u[1], u[2], u[3]);
695 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
696 u[4], u[5], u[6], u[7]);
39c52ee8 697 seq_printf(s, " SKB = 0x%p\n", skb);
2be7d22f
VK		 698
699 if (skb) {
c236658f
VK		 700 skb_get(skb);
701 wil_seq_print_skb(s, skb);
702 kfree_skb(skb);
2be7d22f
VK		 703 }
704 seq_printf(s, "}\n");
705 } else {
af31cb5a 706 if (tx)
3a85543e
VK		 707 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
708 dbg_vring_index, dbg_txdesc_index,
709 vring->size);
710 else
711 seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
712 dbg_txdesc_index, vring->size);
2be7d22f
VK		 713 }
714
715 return 0;
716}
717
718static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
719{
720 return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
721}
722
723static const struct file_operations fops_txdesc = {
724 .open = wil_txdesc_seq_open,
725 .release = single_release,
726 .read = seq_read,
727 .llseek = seq_lseek,
728};
729
730/*---------beamforming------------*/
731static int wil_bf_debugfs_show(struct seq_file *s, void *data)
732{
733 struct wil6210_priv *wil = s->private;
734 seq_printf(s,
735 "TSF : 0x%016llx\n"
736 "TxMCS : %d\n"
737 "Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n",
738 wil->stats.tsf, wil->stats.bf_mcs,
739 wil->stats.my_rx_sector, wil->stats.my_tx_sector,
740 wil->stats.peer_rx_sector, wil->stats.peer_tx_sector);
741 return 0;
742}
743
744static int wil_bf_seq_open(struct inode *inode, struct file *file)
745{
746 return single_open(file, wil_bf_debugfs_show, inode->i_private);
747}
748
749static const struct file_operations fops_bf = {
750 .open = wil_bf_seq_open,
751 .release = single_release,
752 .read = seq_read,
753 .llseek = seq_lseek,
754};
755/*---------SSID------------*/
756static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
757 size_t count, loff_t *ppos)
758{
759 struct wil6210_priv *wil = file->private_data;
760 struct wireless_dev *wdev = wil_to_wdev(wil);
761
762 return simple_read_from_buffer(user_buf, count, ppos,
763 wdev->ssid, wdev->ssid_len);
764}
765
766static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
767 size_t count, loff_t *ppos)
768{
769 struct wil6210_priv *wil = file->private_data;
770 struct wireless_dev *wdev = wil_to_wdev(wil);
771 struct net_device *ndev = wil_to_ndev(wil);
772
773 if (*ppos != 0) {
774 wil_err(wil, "Unable to set SSID substring from [%d]\n",
775 (int)*ppos);
776 return -EINVAL;
777 }
778
779 if (count > sizeof(wdev->ssid)) {
780 wil_err(wil, "SSID too long, len = %d\n", (int)count);
781 return -EINVAL;
782 }
783 if (netif_running(ndev)) {
784 wil_err(wil, "Unable to change SSID on running interface\n");
785 return -EINVAL;
786 }
787
788 wdev->ssid_len = count;
789 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
790 buf, count);
791}
792
793static const struct file_operations fops_ssid = {
794 .read = wil_read_file_ssid,
795 .write = wil_write_file_ssid,
93ecbd64 796 .open = simple_open,
2be7d22f
VK		 797};
798
1a2780e0
VK		 799/*---------temp------------*/
800static void print_temp(struct seq_file *s, const char *prefix, u32 t)
801{
802 switch (t) {
803 case 0:
804 case ~(u32)0:
805 seq_printf(s, "%s N/A\n", prefix);
806 break;
807 default:
808 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
809 break;
810 }
811}
812
813static int wil_temp_debugfs_show(struct seq_file *s, void *data)
814{
815 struct wil6210_priv *wil = s->private;
816 u32 t_m, t_r;
817
818 int rc = wmi_get_temperature(wil, &t_m, &t_r);
819 if (rc) {
820 seq_printf(s, "Failed\n");
821 return 0;
822 }
823
d45cff9f
VK		 824 print_temp(s, "T_mac =", t_m);
825 print_temp(s, "T_radio =", t_r);
1a2780e0
VK		 826
827 return 0;
828}
829
830static int wil_temp_seq_open(struct inode *inode, struct file *file)
831{
832 return single_open(file, wil_temp_debugfs_show, inode->i_private);
833}
834
835static const struct file_operations fops_temp = {
836 .open = wil_temp_seq_open,
837 .release = single_release,
838 .read = seq_read,
839 .llseek = seq_lseek,
840};
841
9eb82d43
VK		 842/*---------freq------------*/
843static int wil_freq_debugfs_show(struct seq_file *s, void *data)
844{
845 struct wil6210_priv *wil = s->private;
846 struct wireless_dev *wdev = wil_to_wdev(wil);
847 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
848
849 seq_printf(s, "Freq = %d\n", freq);
850
851 return 0;
852}
853
854static int wil_freq_seq_open(struct inode *inode, struct file *file)
855{
856 return single_open(file, wil_freq_debugfs_show, inode->i_private);
857}
858
859static const struct file_operations fops_freq = {
860 .open = wil_freq_seq_open,
861 .release = single_release,
862 .read = seq_read,
863 .llseek = seq_lseek,
864};
865
866/*---------link------------*/
867static int wil_link_debugfs_show(struct seq_file *s, void *data)
868{
869 struct wil6210_priv *wil = s->private;
870 struct station_info sinfo;
871 int i, rc;
872
873 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
874 struct wil_sta_info *p = &wil->sta[i];
875 char *status = "unknown";
876 switch (p->status) {
877 case wil_sta_unused:
878 status = "unused ";
879 break;
880 case wil_sta_conn_pending:
881 status = "pending ";
882 break;
883 case wil_sta_connected:
884 status = "connected";
885 break;
886 }
887 seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status,
888 (p->data_port_open ? " data_port_open" : ""));
889
890 if (p->status == wil_sta_connected) {
891 rc = wil_cid_fill_sinfo(wil, i, &sinfo);
892 if (rc)
893 return rc;
894
895 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs);
896 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs);
897 seq_printf(s, " SQ = %d\n", sinfo.signal);
898 }
899 }
900
901 return 0;
902}
903
904static int wil_link_seq_open(struct inode *inode, struct file *file)
905{
906 return single_open(file, wil_link_debugfs_show, inode->i_private);
907}
908
909static const struct file_operations fops_link = {
910 .open = wil_link_seq_open,
911 .release = single_release,
912 .read = seq_read,
913 .llseek = seq_lseek,
914};
915
84bb29b7
VK		 916/*---------info------------*/
917static int wil_info_debugfs_show(struct seq_file *s, void *data)
918{
be299858
VK		 919 struct wil6210_priv *wil = s->private;
920 struct net_device *ndev = wil_to_ndev(wil);
84bb29b7 921 int is_ac = power_supply_is_system_supplied();
be299858
VK		 922 int rx = atomic_xchg(&wil->isr_count_rx, 0);
923 int tx = atomic_xchg(&wil->isr_count_tx, 0);
924 static ulong rxf_old, txf_old;
925 ulong rxf = ndev->stats.rx_packets;
926 ulong txf = ndev->stats.tx_packets;
55f8f680 927 unsigned int i;
84bb29b7
VK		 928
929 /* >0 : AC; 0 : battery; <0 : error */
930 seq_printf(s, "AC powered : %d\n", is_ac);
be299858
VK		 931 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
932 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
933 rxf_old = rxf;
934 txf_old = txf;
84bb29b7 935
55f8f680
VK		 936
937#define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
938 " " __stringify(x) : ""
939
940 for (i = 0; i < ndev->num_tx_queues; i++) {
941 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
942 unsigned long state = txq->state;
943
944 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
945 CHECK_QSTATE(DRV_XOFF),
946 CHECK_QSTATE(STACK_XOFF),
947 CHECK_QSTATE(FROZEN)
948 );
949 }
950#undef CHECK_QSTATE
84bb29b7
VK		 951 return 0;
952}
953
954static int wil_info_seq_open(struct inode *inode, struct file *file)
955{
956 return single_open(file, wil_info_debugfs_show, inode->i_private);
957}
958
959static const struct file_operations fops_info = {
960 .open = wil_info_seq_open,
961 .release = single_release,
962 .read = seq_read,
963 .llseek = seq_lseek,
964};
965
3df2cd36 966/*---------Station matrix------------*/
b4490f42
VK		 967static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
968{
969 int i;
970 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
971 seq_printf(s, "0x%03x [", r->head_seq_num);
972 for (i = 0; i < r->buf_size; i++) {
973 if (i == index)
974 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
975 else
976 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
977 }
d5b1c32f 978 seq_printf(s, "] last drop 0x%03x\n", r->ssn_last_drop);
b4490f42 979}
3df2cd36
VK		 980
981static int wil_sta_debugfs_show(struct seq_file *s, void *data)
982{
983 struct wil6210_priv *wil = s->private;
b4490f42 984 int i, tid;
3df2cd36
VK		 985
986 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
987 struct wil_sta_info *p = &wil->sta[i];
988 char *status = "unknown";
989 switch (p->status) {
990 case wil_sta_unused:
991 status = "unused ";
992 break;
993 case wil_sta_conn_pending:
994 status = "pending ";
995 break;
996 case wil_sta_connected:
997 status = "connected";
998 break;
999 }
e58c9f70
VK		 1000 seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status,
1001 (p->data_port_open ? " data_port_open" : ""));
b4490f42
VK		 1002
1003 if (p->status == wil_sta_connected) {
1004 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
1005 struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
1006 if (r) {
1007 seq_printf(s, "[%2d] ", tid);
1008 wil_print_rxtid(s, r);
1009 }
1010 }
1011 }
3df2cd36
VK		 1012 }
1013
1014 return 0;
1015}
1016
1017static int wil_sta_seq_open(struct inode *inode, struct file *file)
1018{
1019 return single_open(file, wil_sta_debugfs_show, inode->i_private);
1020}
1021
1022static const struct file_operations fops_sta = {
1023 .open = wil_sta_seq_open,
1024 .release = single_release,
1025 .read = seq_read,
1026 .llseek = seq_lseek,
1027};
1028
2be7d22f 1029/*----------------*/
b541d0a0
VK		 1030static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
1031 struct dentry *dbg)
1032{
1033 int i;
1034 char name[32];
1035
1036 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
1037 struct debugfs_blob_wrapper *blob = &wil->blobs[i];
1038 const struct fw_map *map = &fw_mapping[i];
1039
1040 if (!map->name)
1041 continue;
1042
1043 blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
1044 blob->size = map->to - map->from;
1045 snprintf(name, sizeof(name), "blob_%s", map->name);
1046 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob);
1047 }
1048}
1049
b7cde470
VK		 1050/* misc files */
1051static const struct {
1052 const char *name;
1053 umode_t mode;
1054 const struct file_operations *fops;
1055} dbg_files[] = {
1056 {"mbox", S_IRUGO, &fops_mbox},
1057 {"vrings", S_IRUGO, &fops_vring},
1058 {"stations", S_IRUGO, &fops_sta},
1059 {"desc", S_IRUGO, &fops_txdesc},
1060 {"bf", S_IRUGO, &fops_bf},
1061 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid},
1062 {"mem_val", S_IRUGO, &fops_memread},
1063 {"reset", S_IWUSR, &fops_reset},
1064 {"rxon", S_IWUSR, &fops_rxon},
1065 {"tx_mgmt", S_IWUSR, &fops_txmgmt},
1066 {"wmi_send", S_IWUSR, &fops_wmi},
1067 {"temp", S_IRUGO, &fops_temp},
1068 {"freq", S_IRUGO, &fops_freq},
1069 {"link", S_IRUGO, &fops_link},
1070 {"info", S_IRUGO, &fops_info},
1071};
1072
1073static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
1074 struct dentry *dbg)
1075{
1076 int i;
1077
1078 for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
1079 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg,
1080 wil, dbg_files[i].fops);
1081}
1082
1083/* interrupt control blocks */
1084static const struct {
1085 const char *name;
1086 u32 icr_off;
1087} dbg_icr[] = {
1088 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)},
1089 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)},
1090 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)},
1091 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)},
1092};
1093
1094static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
1095 struct dentry *dbg)
1096{
1097 int i;
1098
1099 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
1100 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg,
1101 dbg_icr[i].icr_off);
1102}
1103
1104#define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
1105 offsetof(struct wil6210_priv, name), type}
1106
1107/* fields in struct wil6210_priv */
1108static const struct dbg_off dbg_wil_off[] = {
1109 WIL_FIELD(secure_pcp, S_IRUGO | S_IWUSR, doff_u32),
1110 WIL_FIELD(status, S_IRUGO | S_IWUSR, doff_ulong),
1111 WIL_FIELD(fw_version, S_IRUGO, doff_u32),
1112 WIL_FIELD(hw_version, S_IRUGO, doff_x32),
1113 {},
1114};
1115
1116static const struct dbg_off dbg_wil_regs[] = {
1117 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
1118 doff_io32},
1119 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
1120 {},
1121};
1122
1123/* static parameters */
1124static const struct dbg_off dbg_statics[] = {
1125 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32},
1126 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32},
1127 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32},
1128 {},
1129};
1130
2be7d22f
VK		 1131int wil6210_debugfs_init(struct wil6210_priv *wil)
1132{
1133 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
1134 wil_to_wiphy(wil)->debugfsdir);
1135
1136 if (IS_ERR_OR_NULL(dbg))
1137 return -ENODEV;
1138
b7cde470
VK		 1139 wil6210_debugfs_init_files(wil, dbg);
1140 wil6210_debugfs_init_isr(wil, dbg);
1141 wil6210_debugfs_init_blobs(wil, dbg);
1142 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off);
1143 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
1144 dbg_wil_regs);
1145 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);
1146
2be7d22f 1147 wil6210_debugfs_create_pseudo_ISR(wil, dbg);
2be7d22f 1148
b7cde470 1149 wil6210_debugfs_create_ITR_CNT(wil, dbg);
2be7d22f
VK		 1150
1151 return 0;
1152}
1153
1154void wil6210_debugfs_remove(struct wil6210_priv *wil)
1155{
1156 debugfs_remove_recursive(wil->debug);
1157 wil->debug = NULL;
1158}
Linux kernel - Deliverables
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