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vfio/pci: Fix typos in comments
[deliverable/linux.git] / drivers / net / wireless / marvell / mwifiex / debugfs.c
1 /*
2 * Marvell Wireless LAN device driver: debugfs
3 *
4 * Copyright (C) 2011-2014, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20 #include <linux/debugfs.h>
21
22 #include "main.h"
23 #include "11n.h"
24
25
26 static struct dentry *mwifiex_dfs_dir;
27
28 static char *bss_modes[] = {
29 "UNSPECIFIED",
30 "ADHOC",
31 "STATION",
32 "AP",
33 "AP_VLAN",
34 "WDS",
35 "MONITOR",
36 "MESH_POINT",
37 "P2P_CLIENT",
38 "P2P_GO",
39 "P2P_DEVICE",
40 };
41
42 /*
43 * Proc info file read handler.
44 *
45 * This function is called when the 'info' file is opened for reading.
46 * It prints the following driver related information -
47 * - Driver name
48 * - Driver version
49 * - Driver extended version
50 * - Interface name
51 * - BSS mode
52 * - Media state (connected or disconnected)
53 * - MAC address
54 * - Total number of Tx bytes
55 * - Total number of Rx bytes
56 * - Total number of Tx packets
57 * - Total number of Rx packets
58 * - Total number of dropped Tx packets
59 * - Total number of dropped Rx packets
60 * - Total number of corrupted Tx packets
61 * - Total number of corrupted Rx packets
62 * - Carrier status (on or off)
63 * - Tx queue status (started or stopped)
64 *
65 * For STA mode drivers, it also prints the following extra -
66 * - ESSID
67 * - BSSID
68 * - Channel
69 * - Region code
70 * - Multicast count
71 * - Multicast addresses
72 */
73 static ssize_t
74 mwifiex_info_read(struct file *file, char __user *ubuf,
75 size_t count, loff_t *ppos)
76 {
77 struct mwifiex_private *priv =
78 (struct mwifiex_private *) file->private_data;
79 struct net_device *netdev = priv->netdev;
80 struct netdev_hw_addr *ha;
81 struct netdev_queue *txq;
82 unsigned long page = get_zeroed_page(GFP_KERNEL);
83 char *p = (char *) page, fmt[64];
84 struct mwifiex_bss_info info;
85 ssize_t ret;
86 int i = 0;
87
88 if (!p)
89 return -ENOMEM;
90
91 memset(&info, 0, sizeof(info));
92 ret = mwifiex_get_bss_info(priv, &info);
93 if (ret)
94 goto free_and_exit;
95
96 mwifiex_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1);
97
98 mwifiex_get_ver_ext(priv, 0);
99
100 p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
101 p += sprintf(p, "driver_version = %s", fmt);
102 p += sprintf(p, "\nverext = %s", priv->version_str);
103 p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);
104
105 if (info.bss_mode >= ARRAY_SIZE(bss_modes))
106 p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode);
107 else
108 p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]);
109
110 p += sprintf(p, "media_state=\"%s\"\n",
111 (!priv->media_connected ? "Disconnected" : "Connected"));
112 p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr);
113
114 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) {
115 p += sprintf(p, "multicast_count=\"%d\"\n",
116 netdev_mc_count(netdev));
117 p += sprintf(p, "essid=\"%s\"\n", info.ssid.ssid);
118 p += sprintf(p, "bssid=\"%pM\"\n", info.bssid);
119 p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan);
120 p += sprintf(p, "country_code = \"%s\"\n", info.country_code);
121
122 netdev_for_each_mc_addr(ha, netdev)
123 p += sprintf(p, "multicast_address[%d]=\"%pM\"\n",
124 i++, ha->addr);
125 }
126
127 p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes);
128 p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes);
129 p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets);
130 p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets);
131 p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped);
132 p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped);
133 p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors);
134 p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors);
135 p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev))
136 ? "on" : "off"));
137 p += sprintf(p, "tx queue");
138 for (i = 0; i < netdev->num_tx_queues; i++) {
139 txq = netdev_get_tx_queue(netdev, i);
140 p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ?
141 "stopped" : "started");
142 }
143 p += sprintf(p, "\n");
144
145 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
146 (unsigned long) p - page);
147
148 free_and_exit:
149 free_page(page);
150 return ret;
151 }
152
153 /*
154 * Proc device dump read handler.
155 *
156 * This function is called when the 'device_dump' file is opened for
157 * reading.
158 * This function dumps driver information and firmware memory segments
159 * (ex. DTCM, ITCM, SQRAM etc.) for
160 * debugging.
161 */
162 static ssize_t
163 mwifiex_device_dump_read(struct file *file, char __user *ubuf,
164 size_t count, loff_t *ppos)
165 {
166 struct mwifiex_private *priv = file->private_data;
167
168 if (!priv->adapter->if_ops.device_dump)
169 return -EIO;
170
171 priv->adapter->if_ops.device_dump(priv->adapter);
172
173 return 0;
174 }
175
176 /*
177 * Proc getlog file read handler.
178 *
179 * This function is called when the 'getlog' file is opened for reading
180 * It prints the following log information -
181 * - Number of multicast Tx frames
182 * - Number of failed packets
183 * - Number of Tx retries
184 * - Number of multicast Tx retries
185 * - Number of duplicate frames
186 * - Number of RTS successes
187 * - Number of RTS failures
188 * - Number of ACK failures
189 * - Number of fragmented Rx frames
190 * - Number of multicast Rx frames
191 * - Number of FCS errors
192 * - Number of Tx frames
193 * - WEP ICV error counts
194 * - Number of received beacons
195 * - Number of missed beacons
196 */
197 static ssize_t
198 mwifiex_getlog_read(struct file *file, char __user *ubuf,
199 size_t count, loff_t *ppos)
200 {
201 struct mwifiex_private *priv =
202 (struct mwifiex_private *) file->private_data;
203 unsigned long page = get_zeroed_page(GFP_KERNEL);
204 char *p = (char *) page;
205 ssize_t ret;
206 struct mwifiex_ds_get_stats stats;
207
208 if (!p)
209 return -ENOMEM;
210
211 memset(&stats, 0, sizeof(stats));
212 ret = mwifiex_get_stats_info(priv, &stats);
213 if (ret)
214 goto free_and_exit;
215
216 p += sprintf(p, "\n"
217 "mcasttxframe %u\n"
218 "failed %u\n"
219 "retry %u\n"
220 "multiretry %u\n"
221 "framedup %u\n"
222 "rtssuccess %u\n"
223 "rtsfailure %u\n"
224 "ackfailure %u\n"
225 "rxfrag %u\n"
226 "mcastrxframe %u\n"
227 "fcserror %u\n"
228 "txframe %u\n"
229 "wepicverrcnt-1 %u\n"
230 "wepicverrcnt-2 %u\n"
231 "wepicverrcnt-3 %u\n"
232 "wepicverrcnt-4 %u\n"
233 "bcn_rcv_cnt %u\n"
234 "bcn_miss_cnt %u\n",
235 stats.mcast_tx_frame,
236 stats.failed,
237 stats.retry,
238 stats.multi_retry,
239 stats.frame_dup,
240 stats.rts_success,
241 stats.rts_failure,
242 stats.ack_failure,
243 stats.rx_frag,
244 stats.mcast_rx_frame,
245 stats.fcs_error,
246 stats.tx_frame,
247 stats.wep_icv_error[0],
248 stats.wep_icv_error[1],
249 stats.wep_icv_error[2],
250 stats.wep_icv_error[3],
251 stats.bcn_rcv_cnt,
252 stats.bcn_miss_cnt);
253
254
255 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
256 (unsigned long) p - page);
257
258 free_and_exit:
259 free_page(page);
260 return ret;
261 }
262
263 /* Sysfs histogram file read handler.
264 *
265 * This function is called when the 'histogram' file is opened for reading
266 * It prints the following histogram information -
267 * - Number of histogram samples
268 * - Receive packet number of each rx_rate
269 * - Receive packet number of each snr
270 * - Receive packet number of each nosie_flr
271 * - Receive packet number of each signal streath
272 */
273 static ssize_t
274 mwifiex_histogram_read(struct file *file, char __user *ubuf,
275 size_t count, loff_t *ppos)
276 {
277 struct mwifiex_private *priv =
278 (struct mwifiex_private *)file->private_data;
279 ssize_t ret;
280 struct mwifiex_histogram_data *phist_data;
281 int i, value;
282 unsigned long page = get_zeroed_page(GFP_KERNEL);
283 char *p = (char *)page;
284
285 if (!p)
286 return -ENOMEM;
287
288 if (!priv || !priv->hist_data)
289 return -EFAULT;
290 phist_data = priv->hist_data;
291
292 p += sprintf(p, "\n"
293 "total samples = %d\n",
294 atomic_read(&phist_data->num_samples));
295
296 p += sprintf(p, "rx rates (in Mbps): 0=1M 1=2M");
297 p += sprintf(p, "2=5.5M 3=11M 4=6M 5=9M 6=12M\n");
298 p += sprintf(p, "7=18M 8=24M 9=36M 10=48M 11=54M");
299 p += sprintf(p, "12-27=MCS0-15(BW20) 28-43=MCS0-15(BW40)\n");
300
301 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
302 p += sprintf(p, "44-53=MCS0-9(VHT:BW20)");
303 p += sprintf(p, "54-63=MCS0-9(VHT:BW40)");
304 p += sprintf(p, "64-73=MCS0-9(VHT:BW80)\n\n");
305 } else {
306 p += sprintf(p, "\n");
307 }
308
309 for (i = 0; i < MWIFIEX_MAX_RX_RATES; i++) {
310 value = atomic_read(&phist_data->rx_rate[i]);
311 if (value)
312 p += sprintf(p, "rx_rate[%02d] = %d\n", i, value);
313 }
314
315 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
316 for (i = MWIFIEX_MAX_RX_RATES; i < MWIFIEX_MAX_AC_RX_RATES;
317 i++) {
318 value = atomic_read(&phist_data->rx_rate[i]);
319 if (value)
320 p += sprintf(p, "rx_rate[%02d] = %d\n",
321 i, value);
322 }
323 }
324
325 for (i = 0; i < MWIFIEX_MAX_SNR; i++) {
326 value = atomic_read(&phist_data->snr[i]);
327 if (value)
328 p += sprintf(p, "snr[%02ddB] = %d\n", i, value);
329 }
330 for (i = 0; i < MWIFIEX_MAX_NOISE_FLR; i++) {
331 value = atomic_read(&phist_data->noise_flr[i]);
332 if (value)
333 p += sprintf(p, "noise_flr[-%02ddBm] = %d\n",
334 (int)(i-128), value);
335 }
336 for (i = 0; i < MWIFIEX_MAX_SIG_STRENGTH; i++) {
337 value = atomic_read(&phist_data->sig_str[i]);
338 if (value)
339 p += sprintf(p, "sig_strength[-%02ddBm] = %d\n",
340 i, value);
341 }
342
343 ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
344 (unsigned long)p - page);
345
346 return ret;
347 }
348
349 static ssize_t
350 mwifiex_histogram_write(struct file *file, const char __user *ubuf,
351 size_t count, loff_t *ppos)
352 {
353 struct mwifiex_private *priv = (void *)file->private_data;
354
355 if (priv && priv->hist_data)
356 mwifiex_hist_data_reset(priv);
357 return 0;
358 }
359
360 static struct mwifiex_debug_info info;
361
362 /*
363 * Proc debug file read handler.
364 *
365 * This function is called when the 'debug' file is opened for reading
366 * It prints the following log information -
367 * - Interrupt count
368 * - WMM AC VO packets count
369 * - WMM AC VI packets count
370 * - WMM AC BE packets count
371 * - WMM AC BK packets count
372 * - Maximum Tx buffer size
373 * - Tx buffer size
374 * - Current Tx buffer size
375 * - Power Save mode
376 * - Power Save state
377 * - Deep Sleep status
378 * - Device wakeup required status
379 * - Number of wakeup tries
380 * - Host Sleep configured status
381 * - Host Sleep activated status
382 * - Number of Tx timeouts
383 * - Number of command timeouts
384 * - Last timed out command ID
385 * - Last timed out command action
386 * - Last command ID
387 * - Last command action
388 * - Last command index
389 * - Last command response ID
390 * - Last command response index
391 * - Last event
392 * - Last event index
393 * - Number of host to card command failures
394 * - Number of sleep confirm command failures
395 * - Number of host to card data failure
396 * - Number of deauthentication events
397 * - Number of disassociation events
398 * - Number of link lost events
399 * - Number of deauthentication commands
400 * - Number of association success commands
401 * - Number of association failure commands
402 * - Number of commands sent
403 * - Number of data packets sent
404 * - Number of command responses received
405 * - Number of events received
406 * - Tx BA stream table (TID, RA)
407 * - Rx reorder table (TID, TA, Start window, Window size, Buffer)
408 */
409 static ssize_t
410 mwifiex_debug_read(struct file *file, char __user *ubuf,
411 size_t count, loff_t *ppos)
412 {
413 struct mwifiex_private *priv =
414 (struct mwifiex_private *) file->private_data;
415 unsigned long page = get_zeroed_page(GFP_KERNEL);
416 char *p = (char *) page;
417 ssize_t ret;
418
419 if (!p)
420 return -ENOMEM;
421
422 ret = mwifiex_get_debug_info(priv, &info);
423 if (ret)
424 goto free_and_exit;
425
426 p += mwifiex_debug_info_to_buffer(priv, p, &info);
427
428 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
429 (unsigned long) p - page);
430
431 free_and_exit:
432 free_page(page);
433 return ret;
434 }
435
436 static u32 saved_reg_type, saved_reg_offset, saved_reg_value;
437
438 /*
439 * Proc regrdwr file write handler.
440 *
441 * This function is called when the 'regrdwr' file is opened for writing
442 *
443 * This function can be used to write to a register.
444 */
445 static ssize_t
446 mwifiex_regrdwr_write(struct file *file,
447 const char __user *ubuf, size_t count, loff_t *ppos)
448 {
449 char *buf;
450 int ret;
451 u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX;
452
453 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
454 if (IS_ERR(buf))
455 return PTR_ERR(buf);
456
457 sscanf(buf, "%u %x %x", &reg_type, &reg_offset, &reg_value);
458
459 if (reg_type == 0 || reg_offset == 0) {
460 ret = -EINVAL;
461 goto done;
462 } else {
463 saved_reg_type = reg_type;
464 saved_reg_offset = reg_offset;
465 saved_reg_value = reg_value;
466 ret = count;
467 }
468 done:
469 kfree(buf);
470 return ret;
471 }
472
473 /*
474 * Proc regrdwr file read handler.
475 *
476 * This function is called when the 'regrdwr' file is opened for reading
477 *
478 * This function can be used to read from a register.
479 */
480 static ssize_t
481 mwifiex_regrdwr_read(struct file *file, char __user *ubuf,
482 size_t count, loff_t *ppos)
483 {
484 struct mwifiex_private *priv =
485 (struct mwifiex_private *) file->private_data;
486 unsigned long addr = get_zeroed_page(GFP_KERNEL);
487 char *buf = (char *) addr;
488 int pos = 0, ret = 0;
489 u32 reg_value;
490
491 if (!buf)
492 return -ENOMEM;
493
494 if (!saved_reg_type) {
495 /* No command has been given */
496 pos += snprintf(buf, PAGE_SIZE, "0");
497 goto done;
498 }
499 /* Set command has been given */
500 if (saved_reg_value != UINT_MAX) {
501 ret = mwifiex_reg_write(priv, saved_reg_type, saved_reg_offset,
502 saved_reg_value);
503
504 pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n",
505 saved_reg_type, saved_reg_offset,
506 saved_reg_value);
507
508 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
509
510 goto done;
511 }
512 /* Get command has been given */
513 ret = mwifiex_reg_read(priv, saved_reg_type,
514 saved_reg_offset, &reg_value);
515 if (ret) {
516 ret = -EINVAL;
517 goto done;
518 }
519
520 pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type,
521 saved_reg_offset, reg_value);
522
523 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
524
525 done:
526 free_page(addr);
527 return ret;
528 }
529
530 /* Proc debug_mask file read handler.
531 * This function is called when the 'debug_mask' file is opened for reading
532 * This function can be used read driver debugging mask value.
533 */
534 static ssize_t
535 mwifiex_debug_mask_read(struct file *file, char __user *ubuf,
536 size_t count, loff_t *ppos)
537 {
538 struct mwifiex_private *priv =
539 (struct mwifiex_private *)file->private_data;
540 unsigned long page = get_zeroed_page(GFP_KERNEL);
541 char *buf = (char *)page;
542 size_t ret = 0;
543 int pos = 0;
544
545 if (!buf)
546 return -ENOMEM;
547
548 pos += snprintf(buf, PAGE_SIZE, "debug mask=0x%08x\n",
549 priv->adapter->debug_mask);
550 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
551
552 free_page(page);
553 return ret;
554 }
555
556 /* Proc debug_mask file read handler.
557 * This function is called when the 'debug_mask' file is opened for reading
558 * This function can be used read driver debugging mask value.
559 */
560 static ssize_t
561 mwifiex_debug_mask_write(struct file *file, const char __user *ubuf,
562 size_t count, loff_t *ppos)
563 {
564 int ret;
565 unsigned long debug_mask;
566 struct mwifiex_private *priv = (void *)file->private_data;
567 char *buf;
568
569 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
570 if (IS_ERR(buf))
571 return PTR_ERR(buf);
572
573 if (kstrtoul(buf, 0, &debug_mask)) {
574 ret = -EINVAL;
575 goto done;
576 }
577
578 priv->adapter->debug_mask = debug_mask;
579 ret = count;
580 done:
581 kfree(buf);
582 return ret;
583 }
584
585 /* debugfs verext file write handler.
586 * This function is called when the 'verext' file is opened for write
587 */
588 static ssize_t
589 mwifiex_verext_write(struct file *file, const char __user *ubuf,
590 size_t count, loff_t *ppos)
591 {
592 int ret;
593 u32 versionstrsel;
594 struct mwifiex_private *priv = (void *)file->private_data;
595 char buf[16];
596
597 memset(buf, 0, sizeof(buf));
598
599 if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
600 return -EFAULT;
601
602 ret = kstrtou32(buf, 10, &versionstrsel);
603 if (ret)
604 return ret;
605
606 priv->versionstrsel = versionstrsel;
607
608 return count;
609 }
610
611 /* Proc verext file read handler.
612 * This function is called when the 'verext' file is opened for reading
613 * This function can be used read driver exteneed verion string.
614 */
615 static ssize_t
616 mwifiex_verext_read(struct file *file, char __user *ubuf,
617 size_t count, loff_t *ppos)
618 {
619 struct mwifiex_private *priv =
620 (struct mwifiex_private *)file->private_data;
621 char buf[256];
622 int ret;
623
624 mwifiex_get_ver_ext(priv, priv->versionstrsel);
625 ret = snprintf(buf, sizeof(buf), "version string: %s\n",
626 priv->version_str);
627
628 return simple_read_from_buffer(ubuf, count, ppos, buf, ret);
629 }
630
631 /* Proc memrw file write handler.
632 * This function is called when the 'memrw' file is opened for writing
633 * This function can be used to write to a memory location.
634 */
635 static ssize_t
636 mwifiex_memrw_write(struct file *file, const char __user *ubuf, size_t count,
637 loff_t *ppos)
638 {
639 int ret;
640 char cmd;
641 struct mwifiex_ds_mem_rw mem_rw;
642 u16 cmd_action;
643 struct mwifiex_private *priv = (void *)file->private_data;
644 char *buf;
645
646 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
647 if (IS_ERR(buf))
648 return PTR_ERR(buf);
649
650 ret = sscanf(buf, "%c %x %x", &cmd, &mem_rw.addr, &mem_rw.value);
651 if (ret != 3) {
652 ret = -EINVAL;
653 goto done;
654 }
655
656 if ((cmd == 'r') || (cmd == 'R')) {
657 cmd_action = HostCmd_ACT_GEN_GET;
658 mem_rw.value = 0;
659 } else if ((cmd == 'w') || (cmd == 'W')) {
660 cmd_action = HostCmd_ACT_GEN_SET;
661 } else {
662 ret = -EINVAL;
663 goto done;
664 }
665
666 memcpy(&priv->mem_rw, &mem_rw, sizeof(mem_rw));
667 if (mwifiex_send_cmd(priv, HostCmd_CMD_MEM_ACCESS, cmd_action, 0,
668 &mem_rw, true))
669 ret = -1;
670 else
671 ret = count;
672
673 done:
674 kfree(buf);
675 return ret;
676 }
677
678 /* Proc memrw file read handler.
679 * This function is called when the 'memrw' file is opened for reading
680 * This function can be used to read from a memory location.
681 */
682 static ssize_t
683 mwifiex_memrw_read(struct file *file, char __user *ubuf,
684 size_t count, loff_t *ppos)
685 {
686 struct mwifiex_private *priv = (void *)file->private_data;
687 unsigned long addr = get_zeroed_page(GFP_KERNEL);
688 char *buf = (char *)addr;
689 int ret, pos = 0;
690
691 if (!buf)
692 return -ENOMEM;
693
694 pos += snprintf(buf, PAGE_SIZE, "0x%x 0x%x\n", priv->mem_rw.addr,
695 priv->mem_rw.value);
696 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
697
698 free_page(addr);
699 return ret;
700 }
701
702 static u32 saved_offset = -1, saved_bytes = -1;
703
704 /*
705 * Proc rdeeprom file write handler.
706 *
707 * This function is called when the 'rdeeprom' file is opened for writing
708 *
709 * This function can be used to write to a RDEEPROM location.
710 */
711 static ssize_t
712 mwifiex_rdeeprom_write(struct file *file,
713 const char __user *ubuf, size_t count, loff_t *ppos)
714 {
715 char *buf;
716 int ret = 0;
717 int offset = -1, bytes = -1;
718
719 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
720 if (IS_ERR(buf))
721 return PTR_ERR(buf);
722
723 sscanf(buf, "%d %d", &offset, &bytes);
724
725 if (offset == -1 || bytes == -1) {
726 ret = -EINVAL;
727 goto done;
728 } else {
729 saved_offset = offset;
730 saved_bytes = bytes;
731 ret = count;
732 }
733 done:
734 kfree(buf);
735 return ret;
736 }
737
738 /*
739 * Proc rdeeprom read write handler.
740 *
741 * This function is called when the 'rdeeprom' file is opened for reading
742 *
743 * This function can be used to read from a RDEEPROM location.
744 */
745 static ssize_t
746 mwifiex_rdeeprom_read(struct file *file, char __user *ubuf,
747 size_t count, loff_t *ppos)
748 {
749 struct mwifiex_private *priv =
750 (struct mwifiex_private *) file->private_data;
751 unsigned long addr = get_zeroed_page(GFP_KERNEL);
752 char *buf = (char *) addr;
753 int pos, ret, i;
754 u8 value[MAX_EEPROM_DATA];
755
756 if (!buf)
757 return -ENOMEM;
758
759 if (saved_offset == -1) {
760 /* No command has been given */
761 pos = snprintf(buf, PAGE_SIZE, "0");
762 goto done;
763 }
764
765 /* Get command has been given */
766 ret = mwifiex_eeprom_read(priv, (u16) saved_offset,
767 (u16) saved_bytes, value);
768 if (ret) {
769 ret = -EINVAL;
770 goto out_free;
771 }
772
773 pos = snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes);
774
775 for (i = 0; i < saved_bytes; i++)
776 pos += scnprintf(buf + pos, PAGE_SIZE - pos, "%d ", value[i]);
777
778 done:
779 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
780 out_free:
781 free_page(addr);
782 return ret;
783 }
784
785 /* Proc hscfg file write handler
786 * This function can be used to configure the host sleep parameters.
787 */
788 static ssize_t
789 mwifiex_hscfg_write(struct file *file, const char __user *ubuf,
790 size_t count, loff_t *ppos)
791 {
792 struct mwifiex_private *priv = (void *)file->private_data;
793 char *buf;
794 int ret, arg_num;
795 struct mwifiex_ds_hs_cfg hscfg;
796 int conditions = HS_CFG_COND_DEF;
797 u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF;
798
799 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
800 if (IS_ERR(buf))
801 return PTR_ERR(buf);
802
803 arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap);
804
805 memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
806
807 if (arg_num > 3) {
808 mwifiex_dbg(priv->adapter, ERROR,
809 "Too many arguments\n");
810 ret = -EINVAL;
811 goto done;
812 }
813
814 if (arg_num >= 1 && arg_num < 3)
815 mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET,
816 MWIFIEX_SYNC_CMD, &hscfg);
817
818 if (arg_num) {
819 if (conditions == HS_CFG_CANCEL) {
820 mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD);
821 ret = count;
822 goto done;
823 }
824 hscfg.conditions = conditions;
825 }
826 if (arg_num >= 2)
827 hscfg.gpio = gpio;
828 if (arg_num == 3)
829 hscfg.gap = gap;
830
831 hscfg.is_invoke_hostcmd = false;
832 mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
833 MWIFIEX_SYNC_CMD, &hscfg);
834
835 mwifiex_enable_hs(priv->adapter);
836 priv->adapter->hs_enabling = false;
837 ret = count;
838 done:
839 kfree(buf);
840 return ret;
841 }
842
843 /* Proc hscfg file read handler
844 * This function can be used to read host sleep configuration
845 * parameters from driver.
846 */
847 static ssize_t
848 mwifiex_hscfg_read(struct file *file, char __user *ubuf,
849 size_t count, loff_t *ppos)
850 {
851 struct mwifiex_private *priv = (void *)file->private_data;
852 unsigned long addr = get_zeroed_page(GFP_KERNEL);
853 char *buf = (char *)addr;
854 int pos, ret;
855 struct mwifiex_ds_hs_cfg hscfg;
856
857 if (!buf)
858 return -ENOMEM;
859
860 mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET,
861 MWIFIEX_SYNC_CMD, &hscfg);
862
863 pos = snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", hscfg.conditions,
864 hscfg.gpio, hscfg.gap);
865
866 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
867
868 free_page(addr);
869 return ret;
870 }
871
872 static ssize_t
873 mwifiex_timeshare_coex_read(struct file *file, char __user *ubuf,
874 size_t count, loff_t *ppos)
875 {
876 struct mwifiex_private *priv = file->private_data;
877 char buf[3];
878 bool timeshare_coex;
879 int ret;
880 unsigned int len;
881
882 if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15)
883 return -EOPNOTSUPP;
884
885 ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX,
886 HostCmd_ACT_GEN_GET, 0, &timeshare_coex, true);
887 if (ret)
888 return ret;
889
890 len = sprintf(buf, "%d\n", timeshare_coex);
891 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
892 }
893
894 static ssize_t
895 mwifiex_timeshare_coex_write(struct file *file, const char __user *ubuf,
896 size_t count, loff_t *ppos)
897 {
898 bool timeshare_coex;
899 struct mwifiex_private *priv = file->private_data;
900 char kbuf[16];
901 int ret;
902
903 if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15)
904 return -EOPNOTSUPP;
905
906 memset(kbuf, 0, sizeof(kbuf));
907
908 if (copy_from_user(&kbuf, ubuf, min_t(size_t, sizeof(kbuf) - 1, count)))
909 return -EFAULT;
910
911 if (strtobool(kbuf, &timeshare_coex))
912 return -EINVAL;
913
914 ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX,
915 HostCmd_ACT_GEN_SET, 0, &timeshare_coex, true);
916 if (ret)
917 return ret;
918 else
919 return count;
920 }
921
922 static ssize_t
923 mwifiex_reset_write(struct file *file,
924 const char __user *ubuf, size_t count, loff_t *ppos)
925 {
926 struct mwifiex_private *priv = file->private_data;
927 struct mwifiex_adapter *adapter = priv->adapter;
928 bool result;
929 int rc;
930
931 rc = kstrtobool_from_user(ubuf, count, &result);
932 if (rc)
933 return rc;
934
935 if (!result)
936 return -EINVAL;
937
938 if (adapter->if_ops.card_reset) {
939 dev_info(adapter->dev, "Resetting per request\n");
940 adapter->hw_status = MWIFIEX_HW_STATUS_RESET;
941 mwifiex_cancel_all_pending_cmd(adapter);
942 adapter->if_ops.card_reset(adapter);
943 }
944
945 return count;
946 }
947
948 #define MWIFIEX_DFS_ADD_FILE(name) do { \
949 if (!debugfs_create_file(#name, 0644, priv->dfs_dev_dir, \
950 priv, &mwifiex_dfs_##name##_fops)) \
951 return; \
952 } while (0);
953
954 #define MWIFIEX_DFS_FILE_OPS(name) \
955 static const struct file_operations mwifiex_dfs_##name##_fops = { \
956 .read = mwifiex_##name##_read, \
957 .write = mwifiex_##name##_write, \
958 .open = simple_open, \
959 };
960
961 #define MWIFIEX_DFS_FILE_READ_OPS(name) \
962 static const struct file_operations mwifiex_dfs_##name##_fops = { \
963 .read = mwifiex_##name##_read, \
964 .open = simple_open, \
965 };
966
967 #define MWIFIEX_DFS_FILE_WRITE_OPS(name) \
968 static const struct file_operations mwifiex_dfs_##name##_fops = { \
969 .write = mwifiex_##name##_write, \
970 .open = simple_open, \
971 };
972
973
974 MWIFIEX_DFS_FILE_READ_OPS(info);
975 MWIFIEX_DFS_FILE_READ_OPS(debug);
976 MWIFIEX_DFS_FILE_READ_OPS(getlog);
977 MWIFIEX_DFS_FILE_READ_OPS(device_dump);
978 MWIFIEX_DFS_FILE_OPS(regrdwr);
979 MWIFIEX_DFS_FILE_OPS(rdeeprom);
980 MWIFIEX_DFS_FILE_OPS(memrw);
981 MWIFIEX_DFS_FILE_OPS(hscfg);
982 MWIFIEX_DFS_FILE_OPS(histogram);
983 MWIFIEX_DFS_FILE_OPS(debug_mask);
984 MWIFIEX_DFS_FILE_OPS(timeshare_coex);
985 MWIFIEX_DFS_FILE_WRITE_OPS(reset);
986 MWIFIEX_DFS_FILE_OPS(verext);
987
988 /*
989 * This function creates the debug FS directory structure and the files.
990 */
991 void
992 mwifiex_dev_debugfs_init(struct mwifiex_private *priv)
993 {
994 if (!mwifiex_dfs_dir || !priv)
995 return;
996
997 priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name,
998 mwifiex_dfs_dir);
999
1000 if (!priv->dfs_dev_dir)
1001 return;
1002
1003 MWIFIEX_DFS_ADD_FILE(info);
1004 MWIFIEX_DFS_ADD_FILE(debug);
1005 MWIFIEX_DFS_ADD_FILE(getlog);
1006 MWIFIEX_DFS_ADD_FILE(regrdwr);
1007 MWIFIEX_DFS_ADD_FILE(rdeeprom);
1008 MWIFIEX_DFS_ADD_FILE(device_dump);
1009 MWIFIEX_DFS_ADD_FILE(memrw);
1010 MWIFIEX_DFS_ADD_FILE(hscfg);
1011 MWIFIEX_DFS_ADD_FILE(histogram);
1012 MWIFIEX_DFS_ADD_FILE(debug_mask);
1013 MWIFIEX_DFS_ADD_FILE(timeshare_coex);
1014 MWIFIEX_DFS_ADD_FILE(reset);
1015 MWIFIEX_DFS_ADD_FILE(verext);
1016 }
1017
1018 /*
1019 * This function removes the debug FS directory structure and the files.
1020 */
1021 void
1022 mwifiex_dev_debugfs_remove(struct mwifiex_private *priv)
1023 {
1024 if (!priv)
1025 return;
1026
1027 debugfs_remove_recursive(priv->dfs_dev_dir);
1028 }
1029
1030 /*
1031 * This function creates the top level proc directory.
1032 */
1033 void
1034 mwifiex_debugfs_init(void)
1035 {
1036 if (!mwifiex_dfs_dir)
1037 mwifiex_dfs_dir = debugfs_create_dir("mwifiex", NULL);
1038 }
1039
1040 /*
1041 * This function removes the top level proc directory.
1042 */
1043 void
1044 mwifiex_debugfs_remove(void)
1045 {
1046 if (mwifiex_dfs_dir)
1047 debugfs_remove(mwifiex_dfs_dir);
1048 }
Linux kernel - Deliverables
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