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 u32 vring_idle_trsh = 16; /* HW fetches up to 16 descriptors at once */
33
34 enum dbg_off_type {
35 doff_u32 = 0,
36 doff_x32 = 1,
37 doff_ulong = 2,
38 doff_io32 = 3,
39 };
40
41 /* offset to "wil" */
42 struct dbg_off {
43 const char *name;
44 umode_t mode;
45 ulong off;
46 enum dbg_off_type type;
47 };
48
wil_print_vring(struct seq_file * s,struct wil6210_priv * wil,const char * name,struct vring * vring,char _s,char _h)49 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
50 const char *name, struct vring *vring,
51 char _s, char _h)
52 {
53 void __iomem *x = wmi_addr(wil, vring->hwtail);
54 u32 v;
55
56 seq_printf(s, "VRING %s = {\n", name);
57 seq_printf(s, " pa = %pad\n", &vring->pa);
58 seq_printf(s, " va = 0x%p\n", vring->va);
59 seq_printf(s, " size = %d\n", vring->size);
60 seq_printf(s, " swtail = %d\n", vring->swtail);
61 seq_printf(s, " swhead = %d\n", vring->swhead);
62 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail);
63 if (x) {
64 v = ioread32(x);
65 seq_printf(s, "0x%08x = %d\n", v, v);
66 } else {
67 seq_puts(s, "???\n");
68 }
69
70 if (vring->va && (vring->size < 1025)) {
71 uint i;
72
73 for (i = 0; i < vring->size; i++) {
74 volatile struct vring_tx_desc *d = &vring->va[i].tx;
75
76 if ((i % 64) == 0 && (i != 0))
77 seq_puts(s, "\n");
78 seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
79 _s : (vring->ctx[i].skb ? _h : 'h'));
80 }
81 seq_puts(s, "\n");
82 }
83 seq_puts(s, "}\n");
84 }
85
wil_vring_debugfs_show(struct seq_file * s,void * data)86 static int wil_vring_debugfs_show(struct seq_file *s, void *data)
87 {
88 uint i;
89 struct wil6210_priv *wil = s->private;
90
91 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_');
92
93 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
94 struct vring *vring = &wil->vring_tx[i];
95 struct vring_tx_data *txdata = &wil->vring_tx_data[i];
96
97 if (vring->va) {
98 int cid = wil->vring2cid_tid[i][0];
99 int tid = wil->vring2cid_tid[i][1];
100 u32 swhead = vring->swhead;
101 u32 swtail = vring->swtail;
102 int used = (vring->size + swhead - swtail)
103 % vring->size;
104 int avail = vring->size - used - 1;
105 char name[10];
106 char sidle[10];
107 /* performance monitoring */
108 cycles_t now = get_cycles();
109 uint64_t idle = txdata->idle * 100;
110 uint64_t total = now - txdata->begin;
111
112 if (total != 0) {
113 do_div(idle, total);
114 snprintf(sidle, sizeof(sidle), "%3d%%",
115 (int)idle);
116 } else {
117 snprintf(sidle, sizeof(sidle), "N/A");
118 }
119 txdata->begin = now;
120 txdata->idle = 0ULL;
121
122 snprintf(name, sizeof(name), "tx_%2d", i);
123
124 if (cid < WIL6210_MAX_CID)
125 seq_printf(s,
126 "\n%pM CID %d TID %d BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n",
127 wil->sta[cid].addr, cid, tid,
128 txdata->agg_wsize,
129 txdata->agg_timeout,
130 txdata->agg_amsdu ? "+" : "-",
131 used, avail, sidle);
132 else
133 seq_printf(s,
134 "\nBroadcast [%3d|%3d] idle %s\n",
135 used, avail, sidle);
136
137 wil_print_vring(s, wil, name, vring, '_', 'H');
138 }
139 }
140
141 return 0;
142 }
143
wil_vring_seq_open(struct inode * inode,struct file * file)144 static int wil_vring_seq_open(struct inode *inode, struct file *file)
145 {
146 return single_open(file, wil_vring_debugfs_show, inode->i_private);
147 }
148
149 static const struct file_operations fops_vring = {
150 .open = wil_vring_seq_open,
151 .release = single_release,
152 .read = seq_read,
153 .llseek = seq_lseek,
154 };
155
wil_print_ring(struct seq_file * s,const char * prefix,void __iomem * off)156 static void wil_print_ring(struct seq_file *s, const char *prefix,
157 void __iomem *off)
158 {
159 struct wil6210_priv *wil = s->private;
160 struct wil6210_mbox_ring r;
161 int rsize;
162 uint i;
163
164 wil_memcpy_fromio_32(&r, off, sizeof(r));
165 wil_mbox_ring_le2cpus(&r);
166 /*
167 * we just read memory block from NIC. This memory may be
168 * garbage. Check validity before using it.
169 */
170 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
171
172 seq_printf(s, "ring %s = {\n", prefix);
173 seq_printf(s, " base = 0x%08x\n", r.base);
174 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize);
175 seq_printf(s, " tail = 0x%08x\n", r.tail);
176 seq_printf(s, " head = 0x%08x\n", r.head);
177 seq_printf(s, " entry size = %d\n", r.entry_size);
178
179 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
180 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n",
181 sizeof(struct wil6210_mbox_ring_desc));
182 goto out;
183 }
184
185 if (!wmi_addr(wil, r.base) ||
186 !wmi_addr(wil, r.tail) ||
187 !wmi_addr(wil, r.head)) {
188 seq_puts(s, " ??? pointers are garbage?\n");
189 goto out;
190 }
191
192 for (i = 0; i < rsize; i++) {
193 struct wil6210_mbox_ring_desc d;
194 struct wil6210_mbox_hdr hdr;
195 size_t delta = i * sizeof(d);
196 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
197
198 wil_memcpy_fromio_32(&d, x, sizeof(d));
199
200 seq_printf(s, " [%2x] %s %s%s 0x%08x", i,
201 d.sync ? "F" : "E",
202 (r.tail - r.base == delta) ? "t" : " ",
203 (r.head - r.base == delta) ? "h" : " ",
204 le32_to_cpu(d.addr));
205 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
206 u16 len = le16_to_cpu(hdr.len);
207
208 seq_printf(s, " -> %04x %04x %04x %02x\n",
209 le16_to_cpu(hdr.seq), len,
210 le16_to_cpu(hdr.type), hdr.flags);
211 if (len <= MAX_MBOXITEM_SIZE) {
212 int n = 0;
213 char printbuf[16 * 3 + 2];
214 unsigned char databuf[MAX_MBOXITEM_SIZE];
215 void __iomem *src = wmi_buffer(wil, d.addr) +
216 sizeof(struct wil6210_mbox_hdr);
217 /*
218 * No need to check @src for validity -
219 * we already validated @d.addr while
220 * reading header
221 */
222 wil_memcpy_fromio_32(databuf, src, len);
223 while (n < len) {
224 int l = min(len - n, 16);
225
226 hex_dump_to_buffer(databuf + n, l,
227 16, 1, printbuf,
228 sizeof(printbuf),
229 false);
230 seq_printf(s, " : %s\n", printbuf);
231 n += l;
232 }
233 }
234 } else {
235 seq_puts(s, "\n");
236 }
237 }
238 out:
239 seq_puts(s, "}\n");
240 }
241
wil_mbox_debugfs_show(struct seq_file * s,void * data)242 static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
243 {
244 struct wil6210_priv *wil = s->private;
245
246 wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
247 offsetof(struct wil6210_mbox_ctl, tx));
248 wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
249 offsetof(struct wil6210_mbox_ctl, rx));
250
251 return 0;
252 }
253
wil_mbox_seq_open(struct inode * inode,struct file * file)254 static int wil_mbox_seq_open(struct inode *inode, struct file *file)
255 {
256 return single_open(file, wil_mbox_debugfs_show, inode->i_private);
257 }
258
259 static const struct file_operations fops_mbox = {
260 .open = wil_mbox_seq_open,
261 .release = single_release,
262 .read = seq_read,
263 .llseek = seq_lseek,
264 };
265
wil_debugfs_iomem_x32_set(void * data,u64 val)266 static int wil_debugfs_iomem_x32_set(void *data, u64 val)
267 {
268 iowrite32(val, (void __iomem *)data);
269 wmb(); /* make sure write propagated to HW */
270
271 return 0;
272 }
273
wil_debugfs_iomem_x32_get(void * data,u64 * val)274 static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
275 {
276 *val = ioread32((void __iomem *)data);
277
278 return 0;
279 }
280
281 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
282 wil_debugfs_iomem_x32_set, "0x%08llx\n");
283
wil_debugfs_create_iomem_x32(const char * name,umode_t mode,struct dentry * parent,void * value)284 static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
285 umode_t mode,
286 struct dentry *parent,
287 void *value)
288 {
289 return debugfs_create_file(name, mode, parent, value,
290 &fops_iomem_x32);
291 }
292
wil_debugfs_ulong_set(void * data,u64 val)293 static int wil_debugfs_ulong_set(void *data, u64 val)
294 {
295 *(ulong *)data = val;
296 return 0;
297 }
298
wil_debugfs_ulong_get(void * data,u64 * val)299 static int wil_debugfs_ulong_get(void *data, u64 *val)
300 {
301 *val = *(ulong *)data;
302 return 0;
303 }
304
305 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
306 wil_debugfs_ulong_set, "%llu\n");
307
wil_debugfs_create_ulong(const char * name,umode_t mode,struct dentry * parent,ulong * value)308 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode,
309 struct dentry *parent,
310 ulong *value)
311 {
312 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong);
313 }
314
315 /**
316 * wil6210_debugfs_init_offset - create set of debugfs files
317 * @wil - driver's context, used for printing
318 * @dbg - directory on the debugfs, where files will be created
319 * @base - base address used in address calculation
320 * @tbl - table with file descriptions. Should be terminated with empty element.
321 *
322 * Creates files accordingly to the @tbl.
323 */
wil6210_debugfs_init_offset(struct wil6210_priv * wil,struct dentry * dbg,void * base,const struct dbg_off * const tbl)324 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
325 struct dentry *dbg, void *base,
326 const struct dbg_off * const tbl)
327 {
328 int i;
329
330 for (i = 0; tbl[i].name; i++) {
331 struct dentry *f;
332
333 switch (tbl[i].type) {
334 case doff_u32:
335 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg,
336 base + tbl[i].off);
337 break;
338 case doff_x32:
339 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
340 base + tbl[i].off);
341 break;
342 case doff_ulong:
343 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode,
344 dbg, base + tbl[i].off);
345 break;
346 case doff_io32:
347 f = wil_debugfs_create_iomem_x32(tbl[i].name,
348 tbl[i].mode, dbg,
349 base + tbl[i].off);
350 break;
351 default:
352 f = ERR_PTR(-EINVAL);
353 }
354 if (IS_ERR_OR_NULL(f))
355 wil_err(wil, "Create file \"%s\": err %ld\n",
356 tbl[i].name, PTR_ERR(f));
357 }
358 }
359
360 static const struct dbg_off isr_off[] = {
361 {"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32},
362 {"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32},
363 {"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32},
364 {"ICS", S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32},
365 {"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32},
366 {"IMS", S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32},
367 {"IMC", S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32},
368 {},
369 };
370
wil6210_debugfs_create_ISR(struct wil6210_priv * wil,const char * name,struct dentry * parent,u32 off)371 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
372 const char *name,
373 struct dentry *parent, u32 off)
374 {
375 struct dentry *d = debugfs_create_dir(name, parent);
376
377 if (IS_ERR_OR_NULL(d))
378 return -ENODEV;
379
380 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off,
381 isr_off);
382
383 return 0;
384 }
385
386 static const struct dbg_off pseudo_isr_off[] = {
387 {"CAUSE", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32},
388 {"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32},
389 {"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32},
390 {},
391 };
392
wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv * wil,struct dentry * parent)393 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
394 struct dentry *parent)
395 {
396 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);
397
398 if (IS_ERR_OR_NULL(d))
399 return -ENODEV;
400
401 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
402 pseudo_isr_off);
403
404 return 0;
405 }
406
407 static const struct dbg_off lgc_itr_cnt_off[] = {
408 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32},
409 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32},
410 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32},
411 {},
412 };
413
414 static const struct dbg_off tx_itr_cnt_off[] = {
415 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH),
416 doff_io32},
417 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA),
418 doff_io32},
419 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL),
420 doff_io32},
421 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH),
422 doff_io32},
423 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA),
424 doff_io32},
425 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL),
426 doff_io32},
427 {},
428 };
429
430 static const struct dbg_off rx_itr_cnt_off[] = {
431 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH),
432 doff_io32},
433 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA),
434 doff_io32},
435 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL),
436 doff_io32},
437 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH),
438 doff_io32},
439 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA),
440 doff_io32},
441 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL),
442 doff_io32},
443 {},
444 };
445
wil6210_debugfs_create_ITR_CNT(struct wil6210_priv * wil,struct dentry * parent)446 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
447 struct dentry *parent)
448 {
449 struct dentry *d, *dtx, *drx;
450
451 d = debugfs_create_dir("ITR_CNT", parent);
452 if (IS_ERR_OR_NULL(d))
453 return -ENODEV;
454
455 dtx = debugfs_create_dir("TX", d);
456 drx = debugfs_create_dir("RX", d);
457 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx))
458 return -ENODEV;
459
460 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
461 lgc_itr_cnt_off);
462
463 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr,
464 tx_itr_cnt_off);
465
466 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr,
467 rx_itr_cnt_off);
468 return 0;
469 }
470
wil_memread_debugfs_show(struct seq_file * s,void * data)471 static int wil_memread_debugfs_show(struct seq_file *s, void *data)
472 {
473 struct wil6210_priv *wil = s->private;
474 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr));
475
476 if (a)
477 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, ioread32(a));
478 else
479 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);
480
481 return 0;
482 }
483
wil_memread_seq_open(struct inode * inode,struct file * file)484 static int wil_memread_seq_open(struct inode *inode, struct file *file)
485 {
486 return single_open(file, wil_memread_debugfs_show, inode->i_private);
487 }
488
489 static const struct file_operations fops_memread = {
490 .open = wil_memread_seq_open,
491 .release = single_release,
492 .read = seq_read,
493 .llseek = seq_lseek,
494 };
495
wil_read_file_ioblob(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)496 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
497 size_t count, loff_t *ppos)
498 {
499 enum { max_count = 4096 };
500 struct debugfs_blob_wrapper *blob = file->private_data;
501 loff_t pos = *ppos;
502 size_t available = blob->size;
503 void *buf;
504 size_t ret;
505
506 if (pos < 0)
507 return -EINVAL;
508
509 if (pos >= available || !count)
510 return 0;
511
512 if (count > available - pos)
513 count = available - pos;
514 if (count > max_count)
515 count = max_count;
516
517 buf = kmalloc(count, GFP_KERNEL);
518 if (!buf)
519 return -ENOMEM;
520
521 wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data +
522 pos, count);
523
524 ret = copy_to_user(user_buf, buf, count);
525 kfree(buf);
526 if (ret == count)
527 return -EFAULT;
528
529 count -= ret;
530 *ppos = pos + count;
531
532 return count;
533 }
534
535 static const struct file_operations fops_ioblob = {
536 .read = wil_read_file_ioblob,
537 .open = simple_open,
538 .llseek = default_llseek,
539 };
540
541 static
wil_debugfs_create_ioblob(const char * name,umode_t mode,struct dentry * parent,struct debugfs_blob_wrapper * blob)542 struct dentry *wil_debugfs_create_ioblob(const char *name,
543 umode_t mode,
544 struct dentry *parent,
545 struct debugfs_blob_wrapper *blob)
546 {
547 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob);
548 }
549
550 /*---reset---*/
wil_write_file_reset(struct file * file,const char __user * buf,size_t len,loff_t * ppos)551 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
552 size_t len, loff_t *ppos)
553 {
554 struct wil6210_priv *wil = file->private_data;
555 struct net_device *ndev = wil_to_ndev(wil);
556
557 /**
558 * BUG:
559 * this code does NOT sync device state with the rest of system
560 * use with care, debug only!!!
561 */
562 rtnl_lock();
563 dev_close(ndev);
564 ndev->flags &= ~IFF_UP;
565 rtnl_unlock();
566 wil_reset(wil, true);
567
568 return len;
569 }
570
571 static const struct file_operations fops_reset = {
572 .write = wil_write_file_reset,
573 .open = simple_open,
574 };
575
576 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/
wil_write_file_rxon(struct file * file,const char __user * buf,size_t len,loff_t * ppos)577 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
578 size_t len, loff_t *ppos)
579 {
580 struct wil6210_priv *wil = file->private_data;
581 int rc;
582 long channel;
583 bool on;
584
585 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
586
587 if (!kbuf)
588 return -ENOMEM;
589 if (copy_from_user(kbuf, buf, len)) {
590 kfree(kbuf);
591 return -EIO;
592 }
593
594 kbuf[len] = '\0';
595 rc = kstrtol(kbuf, 0, &channel);
596 kfree(kbuf);
597 if (rc)
598 return rc;
599
600 if ((channel < 0) || (channel > 4)) {
601 wil_err(wil, "Invalid channel %ld\n", channel);
602 return -EINVAL;
603 }
604 on = !!channel;
605
606 if (on) {
607 rc = wmi_set_channel(wil, (int)channel);
608 if (rc)
609 return rc;
610 }
611
612 rc = wmi_rxon(wil, on);
613 if (rc)
614 return rc;
615
616 return len;
617 }
618
619 static const struct file_operations fops_rxon = {
620 .write = wil_write_file_rxon,
621 .open = simple_open,
622 };
623
624 /* block ack control, write:
625 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA
626 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side
627 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side
628 */
wil_write_back(struct file * file,const char __user * buf,size_t len,loff_t * ppos)629 static ssize_t wil_write_back(struct file *file, const char __user *buf,
630 size_t len, loff_t *ppos)
631 {
632 struct wil6210_priv *wil = file->private_data;
633 int rc;
634 char *kbuf = kmalloc(len + 1, GFP_KERNEL);
635 char cmd[9];
636 int p1, p2, p3;
637
638 if (!kbuf)
639 return -ENOMEM;
640
641 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
642 if (rc != len) {
643 kfree(kbuf);
644 return rc >= 0 ? -EIO : rc;
645 }
646
647 kbuf[len] = '\0';
648 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3);
649 kfree(kbuf);
650
651 if (rc < 0)
652 return rc;
653 if (rc < 2)
654 return -EINVAL;
655
656 if (0 == strcmp(cmd, "add")) {
657 if (rc < 3) {
658 wil_err(wil, "BACK: add require at least 2 params\n");
659 return -EINVAL;
660 }
661 if (rc < 4)
662 p3 = 0;
663 wmi_addba(wil, p1, p2, p3);
664 } else if (0 == strcmp(cmd, "del_tx")) {
665 if (rc < 3)
666 p2 = WLAN_REASON_QSTA_LEAVE_QBSS;
667 wmi_delba_tx(wil, p1, p2);
668 } else if (0 == strcmp(cmd, "del_rx")) {
669 if (rc < 3) {
670 wil_err(wil,
671 "BACK: del_rx require at least 2 params\n");
672 return -EINVAL;
673 }
674 if (rc < 4)
675 p3 = WLAN_REASON_QSTA_LEAVE_QBSS;
676 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3);
677 } else {
678 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd);
679 return -EINVAL;
680 }
681
682 return len;
683 }
684
wil_read_back(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)685 static ssize_t wil_read_back(struct file *file, char __user *user_buf,
686 size_t count, loff_t *ppos)
687 {
688 static const char text[] = "block ack control, write:\n"
689 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n"
690 "If missing, <timeout> defaults to 0\n"
691 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n"
692 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n"
693 "If missing, <reason> set to \"STA_LEAVING\" (36)\n";
694
695 return simple_read_from_buffer(user_buf, count, ppos, text,
696 sizeof(text));
697 }
698
699 static const struct file_operations fops_back = {
700 .read = wil_read_back,
701 .write = wil_write_back,
702 .open = simple_open,
703 };
704
705 /*---tx_mgmt---*/
706 /* Write mgmt frame to this file to send it */
wil_write_file_txmgmt(struct file * file,const char __user * buf,size_t len,loff_t * ppos)707 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
708 size_t len, loff_t *ppos)
709 {
710 struct wil6210_priv *wil = file->private_data;
711 struct wiphy *wiphy = wil_to_wiphy(wil);
712 struct wireless_dev *wdev = wil_to_wdev(wil);
713 struct cfg80211_mgmt_tx_params params;
714 int rc;
715 void *frame = kmalloc(len, GFP_KERNEL);
716
717 if (!frame)
718 return -ENOMEM;
719
720 if (copy_from_user(frame, buf, len)) {
721 kfree(frame);
722 return -EIO;
723 }
724
725 params.buf = frame;
726 params.len = len;
727 params.chan = wdev->preset_chandef.chan;
728
729 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL);
730
731 kfree(frame);
732 wil_info(wil, "%s() -> %d\n", __func__, rc);
733
734 return len;
735 }
736
737 static const struct file_operations fops_txmgmt = {
738 .write = wil_write_file_txmgmt,
739 .open = simple_open,
740 };
741
742 /* Write WMI command (w/o mbox header) to this file to send it
743 * WMI starts from wil6210_mbox_hdr_wmi header
744 */
wil_write_file_wmi(struct file * file,const char __user * buf,size_t len,loff_t * ppos)745 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
746 size_t len, loff_t *ppos)
747 {
748 struct wil6210_priv *wil = file->private_data;
749 struct wil6210_mbox_hdr_wmi *wmi;
750 void *cmd;
751 int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi);
752 u16 cmdid;
753 int rc, rc1;
754
755 if (cmdlen <= 0)
756 return -EINVAL;
757
758 wmi = kmalloc(len, GFP_KERNEL);
759 if (!wmi)
760 return -ENOMEM;
761
762 rc = simple_write_to_buffer(wmi, len, ppos, buf, len);
763 if (rc < 0) {
764 kfree(wmi);
765 return rc;
766 }
767
768 cmd = &wmi[1];
769 cmdid = le16_to_cpu(wmi->id);
770
771 rc1 = wmi_send(wil, cmdid, cmd, cmdlen);
772 kfree(wmi);
773
774 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1);
775
776 return rc;
777 }
778
779 static const struct file_operations fops_wmi = {
780 .write = wil_write_file_wmi,
781 .open = simple_open,
782 };
783
wil_seq_hexdump(struct seq_file * s,void * p,int len,const char * prefix)784 static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
785 const char *prefix)
786 {
787 char printbuf[16 * 3 + 2];
788 int i = 0;
789
790 while (i < len) {
791 int l = min(len - i, 16);
792
793 hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
794 sizeof(printbuf), false);
795 seq_printf(s, "%s%s\n", prefix, printbuf);
796 i += l;
797 }
798 }
799
wil_seq_print_skb(struct seq_file * s,struct sk_buff * skb)800 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
801 {
802 int i = 0;
803 int len = skb_headlen(skb);
804 void *p = skb->data;
805 int nr_frags = skb_shinfo(skb)->nr_frags;
806
807 seq_printf(s, " len = %d\n", len);
808 wil_seq_hexdump(s, p, len, " : ");
809
810 if (nr_frags) {
811 seq_printf(s, " nr_frags = %d\n", nr_frags);
812 for (i = 0; i < nr_frags; i++) {
813 const struct skb_frag_struct *frag =
814 &skb_shinfo(skb)->frags[i];
815
816 len = skb_frag_size(frag);
817 p = skb_frag_address_safe(frag);
818 seq_printf(s, " [%2d] : len = %d\n", i, len);
819 wil_seq_hexdump(s, p, len, " : ");
820 }
821 }
822 }
823
824 /*---------Tx/Rx descriptor------------*/
wil_txdesc_debugfs_show(struct seq_file * s,void * data)825 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
826 {
827 struct wil6210_priv *wil = s->private;
828 struct vring *vring;
829 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS);
830
831 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx;
832
833 if (!vring->va) {
834 if (tx)
835 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index);
836 else
837 seq_puts(s, "No Rx VRING\n");
838 return 0;
839 }
840
841 if (dbg_txdesc_index < vring->size) {
842 /* use struct vring_tx_desc for Rx as well,
843 * only field used, .dma.length, is the same
844 */
845 volatile struct vring_tx_desc *d =
846 &vring->va[dbg_txdesc_index].tx;
847 volatile u32 *u = (volatile u32 *)d;
848 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb;
849
850 if (tx)
851 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index,
852 dbg_txdesc_index);
853 else
854 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index);
855 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
856 u[0], u[1], u[2], u[3]);
857 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
858 u[4], u[5], u[6], u[7]);
859 seq_printf(s, " SKB = 0x%p\n", skb);
860
861 if (skb) {
862 skb_get(skb);
863 wil_seq_print_skb(s, skb);
864 kfree_skb(skb);
865 }
866 seq_puts(s, "}\n");
867 } else {
868 if (tx)
869 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
870 dbg_vring_index, dbg_txdesc_index,
871 vring->size);
872 else
873 seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
874 dbg_txdesc_index, vring->size);
875 }
876
877 return 0;
878 }
879
wil_txdesc_seq_open(struct inode * inode,struct file * file)880 static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
881 {
882 return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
883 }
884
885 static const struct file_operations fops_txdesc = {
886 .open = wil_txdesc_seq_open,
887 .release = single_release,
888 .read = seq_read,
889 .llseek = seq_lseek,
890 };
891
892 /*---------beamforming------------*/
wil_bfstatus_str(u32 status)893 static char *wil_bfstatus_str(u32 status)
894 {
895 switch (status) {
896 case 0:
897 return "Failed";
898 case 1:
899 return "OK";
900 case 2:
901 return "Retrying";
902 default:
903 return "??";
904 }
905 }
906
is_all_zeros(void * const x_,size_t sz)907 static bool is_all_zeros(void * const x_, size_t sz)
908 {
909 /* if reply is all-0, ignore this CID */
910 u32 *x = x_;
911 int n;
912
913 for (n = 0; n < sz / sizeof(*x); n++)
914 if (x[n])
915 return false;
916
917 return true;
918 }
919
wil_bf_debugfs_show(struct seq_file * s,void * data)920 static int wil_bf_debugfs_show(struct seq_file *s, void *data)
921 {
922 int rc;
923 int i;
924 struct wil6210_priv *wil = s->private;
925 struct wmi_notify_req_cmd cmd = {
926 .interval_usec = 0,
927 };
928 struct {
929 struct wil6210_mbox_hdr_wmi wmi;
930 struct wmi_notify_req_done_event evt;
931 } __packed reply;
932
933 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
934 u32 status;
935
936 cmd.cid = i;
937 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
938 WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
939 sizeof(reply), 20);
940 /* if reply is all-0, ignore this CID */
941 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
942 continue;
943
944 status = le32_to_cpu(reply.evt.status);
945 seq_printf(s, "CID %d {\n"
946 " TSF = 0x%016llx\n"
947 " TxMCS = %2d TxTpt = %4d\n"
948 " SQI = %4d\n"
949 " Status = 0x%08x %s\n"
950 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
951 " Goodput(rx:tx) %4d:%4d\n"
952 "}\n",
953 i,
954 le64_to_cpu(reply.evt.tsf),
955 le16_to_cpu(reply.evt.bf_mcs),
956 le32_to_cpu(reply.evt.tx_tpt),
957 reply.evt.sqi,
958 status, wil_bfstatus_str(status),
959 le16_to_cpu(reply.evt.my_rx_sector),
960 le16_to_cpu(reply.evt.my_tx_sector),
961 le16_to_cpu(reply.evt.other_rx_sector),
962 le16_to_cpu(reply.evt.other_tx_sector),
963 le32_to_cpu(reply.evt.rx_goodput),
964 le32_to_cpu(reply.evt.tx_goodput));
965 }
966 return 0;
967 }
968
wil_bf_seq_open(struct inode * inode,struct file * file)969 static int wil_bf_seq_open(struct inode *inode, struct file *file)
970 {
971 return single_open(file, wil_bf_debugfs_show, inode->i_private);
972 }
973
974 static const struct file_operations fops_bf = {
975 .open = wil_bf_seq_open,
976 .release = single_release,
977 .read = seq_read,
978 .llseek = seq_lseek,
979 };
980
981 /*---------SSID------------*/
wil_read_file_ssid(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)982 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
983 size_t count, loff_t *ppos)
984 {
985 struct wil6210_priv *wil = file->private_data;
986 struct wireless_dev *wdev = wil_to_wdev(wil);
987
988 return simple_read_from_buffer(user_buf, count, ppos,
989 wdev->ssid, wdev->ssid_len);
990 }
991
wil_write_file_ssid(struct file * file,const char __user * buf,size_t count,loff_t * ppos)992 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
993 size_t count, loff_t *ppos)
994 {
995 struct wil6210_priv *wil = file->private_data;
996 struct wireless_dev *wdev = wil_to_wdev(wil);
997 struct net_device *ndev = wil_to_ndev(wil);
998
999 if (*ppos != 0) {
1000 wil_err(wil, "Unable to set SSID substring from [%d]\n",
1001 (int)*ppos);
1002 return -EINVAL;
1003 }
1004
1005 if (count > sizeof(wdev->ssid)) {
1006 wil_err(wil, "SSID too long, len = %d\n", (int)count);
1007 return -EINVAL;
1008 }
1009 if (netif_running(ndev)) {
1010 wil_err(wil, "Unable to change SSID on running interface\n");
1011 return -EINVAL;
1012 }
1013
1014 wdev->ssid_len = count;
1015 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
1016 buf, count);
1017 }
1018
1019 static const struct file_operations fops_ssid = {
1020 .read = wil_read_file_ssid,
1021 .write = wil_write_file_ssid,
1022 .open = simple_open,
1023 };
1024
1025 /*---------temp------------*/
print_temp(struct seq_file * s,const char * prefix,u32 t)1026 static void print_temp(struct seq_file *s, const char *prefix, u32 t)
1027 {
1028 switch (t) {
1029 case 0:
1030 case ~(u32)0:
1031 seq_printf(s, "%s N/A\n", prefix);
1032 break;
1033 default:
1034 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
1035 break;
1036 }
1037 }
1038
wil_temp_debugfs_show(struct seq_file * s,void * data)1039 static int wil_temp_debugfs_show(struct seq_file *s, void *data)
1040 {
1041 struct wil6210_priv *wil = s->private;
1042 u32 t_m, t_r;
1043 int rc = wmi_get_temperature(wil, &t_m, &t_r);
1044
1045 if (rc) {
1046 seq_puts(s, "Failed\n");
1047 return 0;
1048 }
1049
1050 print_temp(s, "T_mac =", t_m);
1051 print_temp(s, "T_radio =", t_r);
1052
1053 return 0;
1054 }
1055
wil_temp_seq_open(struct inode * inode,struct file * file)1056 static int wil_temp_seq_open(struct inode *inode, struct file *file)
1057 {
1058 return single_open(file, wil_temp_debugfs_show, inode->i_private);
1059 }
1060
1061 static const struct file_operations fops_temp = {
1062 .open = wil_temp_seq_open,
1063 .release = single_release,
1064 .read = seq_read,
1065 .llseek = seq_lseek,
1066 };
1067
1068 /*---------freq------------*/
wil_freq_debugfs_show(struct seq_file * s,void * data)1069 static int wil_freq_debugfs_show(struct seq_file *s, void *data)
1070 {
1071 struct wil6210_priv *wil = s->private;
1072 struct wireless_dev *wdev = wil_to_wdev(wil);
1073 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
1074
1075 seq_printf(s, "Freq = %d\n", freq);
1076
1077 return 0;
1078 }
1079
wil_freq_seq_open(struct inode * inode,struct file * file)1080 static int wil_freq_seq_open(struct inode *inode, struct file *file)
1081 {
1082 return single_open(file, wil_freq_debugfs_show, inode->i_private);
1083 }
1084
1085 static const struct file_operations fops_freq = {
1086 .open = wil_freq_seq_open,
1087 .release = single_release,
1088 .read = seq_read,
1089 .llseek = seq_lseek,
1090 };
1091
1092 /*---------link------------*/
wil_link_debugfs_show(struct seq_file * s,void * data)1093 static int wil_link_debugfs_show(struct seq_file *s, void *data)
1094 {
1095 struct wil6210_priv *wil = s->private;
1096 struct station_info sinfo;
1097 int i, rc;
1098
1099 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1100 struct wil_sta_info *p = &wil->sta[i];
1101 char *status = "unknown";
1102
1103 switch (p->status) {
1104 case wil_sta_unused:
1105 status = "unused ";
1106 break;
1107 case wil_sta_conn_pending:
1108 status = "pending ";
1109 break;
1110 case wil_sta_connected:
1111 status = "connected";
1112 break;
1113 }
1114 seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status,
1115 (p->data_port_open ? " data_port_open" : ""));
1116
1117 if (p->status == wil_sta_connected) {
1118 rc = wil_cid_fill_sinfo(wil, i, &sinfo);
1119 if (rc)
1120 return rc;
1121
1122 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs);
1123 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs);
1124 seq_printf(s, " SQ = %d\n", sinfo.signal);
1125 }
1126 }
1127
1128 return 0;
1129 }
1130
wil_link_seq_open(struct inode * inode,struct file * file)1131 static int wil_link_seq_open(struct inode *inode, struct file *file)
1132 {
1133 return single_open(file, wil_link_debugfs_show, inode->i_private);
1134 }
1135
1136 static const struct file_operations fops_link = {
1137 .open = wil_link_seq_open,
1138 .release = single_release,
1139 .read = seq_read,
1140 .llseek = seq_lseek,
1141 };
1142
1143 /*---------info------------*/
wil_info_debugfs_show(struct seq_file * s,void * data)1144 static int wil_info_debugfs_show(struct seq_file *s, void *data)
1145 {
1146 struct wil6210_priv *wil = s->private;
1147 struct net_device *ndev = wil_to_ndev(wil);
1148 int is_ac = power_supply_is_system_supplied();
1149 int rx = atomic_xchg(&wil->isr_count_rx, 0);
1150 int tx = atomic_xchg(&wil->isr_count_tx, 0);
1151 static ulong rxf_old, txf_old;
1152 ulong rxf = ndev->stats.rx_packets;
1153 ulong txf = ndev->stats.tx_packets;
1154 unsigned int i;
1155
1156 /* >0 : AC; 0 : battery; <0 : error */
1157 seq_printf(s, "AC powered : %d\n", is_ac);
1158 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
1159 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
1160 rxf_old = rxf;
1161 txf_old = txf;
1162
1163 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
1164 " " __stringify(x) : ""
1165
1166 for (i = 0; i < ndev->num_tx_queues; i++) {
1167 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
1168 unsigned long state = txq->state;
1169
1170 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
1171 CHECK_QSTATE(DRV_XOFF),
1172 CHECK_QSTATE(STACK_XOFF),
1173 CHECK_QSTATE(FROZEN)
1174 );
1175 }
1176 #undef CHECK_QSTATE
1177 return 0;
1178 }
1179
wil_info_seq_open(struct inode * inode,struct file * file)1180 static int wil_info_seq_open(struct inode *inode, struct file *file)
1181 {
1182 return single_open(file, wil_info_debugfs_show, inode->i_private);
1183 }
1184
1185 static const struct file_operations fops_info = {
1186 .open = wil_info_seq_open,
1187 .release = single_release,
1188 .read = seq_read,
1189 .llseek = seq_lseek,
1190 };
1191
1192 /*---------recovery------------*/
1193 /* mode = [manual|auto]
1194 * state = [idle|pending|running]
1195 */
wil_read_file_recovery(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1196 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf,
1197 size_t count, loff_t *ppos)
1198 {
1199 struct wil6210_priv *wil = file->private_data;
1200 char buf[80];
1201 int n;
1202 static const char * const sstate[] = {"idle", "pending", "running"};
1203
1204 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n",
1205 no_fw_recovery ? "manual" : "auto",
1206 sstate[wil->recovery_state]);
1207
1208 n = min_t(int, n, sizeof(buf));
1209
1210 return simple_read_from_buffer(user_buf, count, ppos,
1211 buf, n);
1212 }
1213
wil_write_file_recovery(struct file * file,const char __user * buf_,size_t count,loff_t * ppos)1214 static ssize_t wil_write_file_recovery(struct file *file,
1215 const char __user *buf_,
1216 size_t count, loff_t *ppos)
1217 {
1218 struct wil6210_priv *wil = file->private_data;
1219 static const char run_command[] = "run";
1220 char buf[sizeof(run_command) + 1]; /* to detect "runx" */
1221 ssize_t rc;
1222
1223 if (wil->recovery_state != fw_recovery_pending) {
1224 wil_err(wil, "No recovery pending\n");
1225 return -EINVAL;
1226 }
1227
1228 if (*ppos != 0) {
1229 wil_err(wil, "Offset [%d]\n", (int)*ppos);
1230 return -EINVAL;
1231 }
1232
1233 if (count > sizeof(buf)) {
1234 wil_err(wil, "Input too long, len = %d\n", (int)count);
1235 return -EINVAL;
1236 }
1237
1238 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count);
1239 if (rc < 0)
1240 return rc;
1241
1242 buf[rc] = '\0';
1243 if (0 == strcmp(buf, run_command))
1244 wil_set_recovery_state(wil, fw_recovery_running);
1245 else
1246 wil_err(wil, "Bad recovery command \"%s\"\n", buf);
1247
1248 return rc;
1249 }
1250
1251 static const struct file_operations fops_recovery = {
1252 .read = wil_read_file_recovery,
1253 .write = wil_write_file_recovery,
1254 .open = simple_open,
1255 };
1256
1257 /*---------Station matrix------------*/
wil_print_rxtid(struct seq_file * s,struct wil_tid_ampdu_rx * r)1258 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
1259 {
1260 int i;
1261 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
1262
1263 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout,
1264 r->head_seq_num);
1265 for (i = 0; i < r->buf_size; i++) {
1266 if (i == index)
1267 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
1268 else
1269 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
1270 }
1271 seq_printf(s, "] last drop 0x%03x\n", r->ssn_last_drop);
1272 }
1273
wil_sta_debugfs_show(struct seq_file * s,void * data)1274 static int wil_sta_debugfs_show(struct seq_file *s, void *data)
1275 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
1276 {
1277 struct wil6210_priv *wil = s->private;
1278 int i, tid;
1279
1280 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1281 struct wil_sta_info *p = &wil->sta[i];
1282 char *status = "unknown";
1283
1284 switch (p->status) {
1285 case wil_sta_unused:
1286 status = "unused ";
1287 break;
1288 case wil_sta_conn_pending:
1289 status = "pending ";
1290 break;
1291 case wil_sta_connected:
1292 status = "connected";
1293 break;
1294 }
1295 seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status,
1296 (p->data_port_open ? " data_port_open" : ""));
1297
1298 if (p->status == wil_sta_connected) {
1299 spin_lock_bh(&p->tid_rx_lock);
1300 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
1301 struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
1302
1303 if (r) {
1304 seq_printf(s, "[%2d] ", tid);
1305 wil_print_rxtid(s, r);
1306 }
1307 }
1308 spin_unlock_bh(&p->tid_rx_lock);
1309 }
1310 }
1311
1312 return 0;
1313 }
1314
wil_sta_seq_open(struct inode * inode,struct file * file)1315 static int wil_sta_seq_open(struct inode *inode, struct file *file)
1316 {
1317 return single_open(file, wil_sta_debugfs_show, inode->i_private);
1318 }
1319
1320 static const struct file_operations fops_sta = {
1321 .open = wil_sta_seq_open,
1322 .release = single_release,
1323 .read = seq_read,
1324 .llseek = seq_lseek,
1325 };
1326
1327 /*----------------*/
wil6210_debugfs_init_blobs(struct wil6210_priv * wil,struct dentry * dbg)1328 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
1329 struct dentry *dbg)
1330 {
1331 int i;
1332 char name[32];
1333
1334 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
1335 struct debugfs_blob_wrapper *blob = &wil->blobs[i];
1336 const struct fw_map *map = &fw_mapping[i];
1337
1338 if (!map->name)
1339 continue;
1340
1341 blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
1342 blob->size = map->to - map->from;
1343 snprintf(name, sizeof(name), "blob_%s", map->name);
1344 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob);
1345 }
1346 }
1347
1348 /* misc files */
1349 static const struct {
1350 const char *name;
1351 umode_t mode;
1352 const struct file_operations *fops;
1353 } dbg_files[] = {
1354 {"mbox", S_IRUGO, &fops_mbox},
1355 {"vrings", S_IRUGO, &fops_vring},
1356 {"stations", S_IRUGO, &fops_sta},
1357 {"desc", S_IRUGO, &fops_txdesc},
1358 {"bf", S_IRUGO, &fops_bf},
1359 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid},
1360 {"mem_val", S_IRUGO, &fops_memread},
1361 {"reset", S_IWUSR, &fops_reset},
1362 {"rxon", S_IWUSR, &fops_rxon},
1363 {"tx_mgmt", S_IWUSR, &fops_txmgmt},
1364 {"wmi_send", S_IWUSR, &fops_wmi},
1365 {"back", S_IRUGO | S_IWUSR, &fops_back},
1366 {"temp", S_IRUGO, &fops_temp},
1367 {"freq", S_IRUGO, &fops_freq},
1368 {"link", S_IRUGO, &fops_link},
1369 {"info", S_IRUGO, &fops_info},
1370 {"recovery", S_IRUGO | S_IWUSR, &fops_recovery},
1371 };
1372
wil6210_debugfs_init_files(struct wil6210_priv * wil,struct dentry * dbg)1373 static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
1374 struct dentry *dbg)
1375 {
1376 int i;
1377
1378 for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
1379 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg,
1380 wil, dbg_files[i].fops);
1381 }
1382
1383 /* interrupt control blocks */
1384 static const struct {
1385 const char *name;
1386 u32 icr_off;
1387 } dbg_icr[] = {
1388 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)},
1389 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)},
1390 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)},
1391 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)},
1392 };
1393
wil6210_debugfs_init_isr(struct wil6210_priv * wil,struct dentry * dbg)1394 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
1395 struct dentry *dbg)
1396 {
1397 int i;
1398
1399 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
1400 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg,
1401 dbg_icr[i].icr_off);
1402 }
1403
1404 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
1405 offsetof(struct wil6210_priv, name), type}
1406
1407 /* fields in struct wil6210_priv */
1408 static const struct dbg_off dbg_wil_off[] = {
1409 WIL_FIELD(privacy, S_IRUGO, doff_u32),
1410 WIL_FIELD(status[0], S_IRUGO | S_IWUSR, doff_ulong),
1411 WIL_FIELD(fw_version, S_IRUGO, doff_u32),
1412 WIL_FIELD(hw_version, S_IRUGO, doff_x32),
1413 WIL_FIELD(recovery_count, S_IRUGO, doff_u32),
1414 WIL_FIELD(ap_isolate, S_IRUGO, doff_u32),
1415 {},
1416 };
1417
1418 static const struct dbg_off dbg_wil_regs[] = {
1419 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
1420 doff_io32},
1421 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
1422 {},
1423 };
1424
1425 /* static parameters */
1426 static const struct dbg_off dbg_statics[] = {
1427 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32},
1428 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32},
1429 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32},
1430 {"vring_idle_trsh", S_IRUGO | S_IWUSR, (ulong)&vring_idle_trsh,
1431 doff_u32},
1432 {},
1433 };
1434
wil6210_debugfs_init(struct wil6210_priv * wil)1435 int wil6210_debugfs_init(struct wil6210_priv *wil)
1436 {
1437 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
1438 wil_to_wiphy(wil)->debugfsdir);
1439
1440 if (IS_ERR_OR_NULL(dbg))
1441 return -ENODEV;
1442
1443 wil6210_debugfs_init_files(wil, dbg);
1444 wil6210_debugfs_init_isr(wil, dbg);
1445 wil6210_debugfs_init_blobs(wil, dbg);
1446 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off);
1447 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
1448 dbg_wil_regs);
1449 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);
1450
1451 wil6210_debugfs_create_pseudo_ISR(wil, dbg);
1452
1453 wil6210_debugfs_create_ITR_CNT(wil, dbg);
1454
1455 return 0;
1456 }
1457
wil6210_debugfs_remove(struct wil6210_priv * wil)1458 void wil6210_debugfs_remove(struct wil6210_priv *wil)
1459 {
1460 debugfs_remove_recursive(wil->debug);
1461 wil->debug = NULL;
1462 }
1463