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path: root/drivers/net/wireless/mwifiex/debugfs.c
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Diffstat (limited to 'drivers/net/wireless/mwifiex/debugfs.c')
-rw-r--r--drivers/net/wireless/mwifiex/debugfs.c770
1 files changed, 770 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/debugfs.c b/drivers/net/wireless/mwifiex/debugfs.c
new file mode 100644
index 000000000000..46d65e02c7ba
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/debugfs.c
@@ -0,0 +1,770 @@
1/*
2 * Marvell Wireless LAN device driver: debugfs
3 *
4 * Copyright (C) 2011, 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
26static struct dentry *mwifiex_dfs_dir;
27
28static char *bss_modes[] = {
29 "Unknown",
30 "Managed",
31 "Ad-hoc",
32 "Auto"
33};
34
35/* size/addr for mwifiex_debug_info */
36#define item_size(n) (FIELD_SIZEOF(struct mwifiex_debug_info, n))
37#define item_addr(n) (offsetof(struct mwifiex_debug_info, n))
38
39/* size/addr for struct mwifiex_adapter */
40#define adapter_item_size(n) (FIELD_SIZEOF(struct mwifiex_adapter, n))
41#define adapter_item_addr(n) (offsetof(struct mwifiex_adapter, n))
42
43struct mwifiex_debug_data {
44 char name[32]; /* variable/array name */
45 u32 size; /* size of the variable/array */
46 size_t addr; /* address of the variable/array */
47 int num; /* number of variables in an array */
48};
49
50static struct mwifiex_debug_data items[] = {
51 {"int_counter", item_size(int_counter),
52 item_addr(int_counter), 1},
53 {"wmm_ac_vo", item_size(packets_out[WMM_AC_VO]),
54 item_addr(packets_out[WMM_AC_VO]), 1},
55 {"wmm_ac_vi", item_size(packets_out[WMM_AC_VI]),
56 item_addr(packets_out[WMM_AC_VI]), 1},
57 {"wmm_ac_be", item_size(packets_out[WMM_AC_BE]),
58 item_addr(packets_out[WMM_AC_BE]), 1},
59 {"wmm_ac_bk", item_size(packets_out[WMM_AC_BK]),
60 item_addr(packets_out[WMM_AC_BK]), 1},
61 {"max_tx_buf_size", item_size(max_tx_buf_size),
62 item_addr(max_tx_buf_size), 1},
63 {"tx_buf_size", item_size(tx_buf_size),
64 item_addr(tx_buf_size), 1},
65 {"curr_tx_buf_size", item_size(curr_tx_buf_size),
66 item_addr(curr_tx_buf_size), 1},
67 {"ps_mode", item_size(ps_mode),
68 item_addr(ps_mode), 1},
69 {"ps_state", item_size(ps_state),
70 item_addr(ps_state), 1},
71 {"is_deep_sleep", item_size(is_deep_sleep),
72 item_addr(is_deep_sleep), 1},
73 {"wakeup_dev_req", item_size(pm_wakeup_card_req),
74 item_addr(pm_wakeup_card_req), 1},
75 {"wakeup_tries", item_size(pm_wakeup_fw_try),
76 item_addr(pm_wakeup_fw_try), 1},
77 {"hs_configured", item_size(is_hs_configured),
78 item_addr(is_hs_configured), 1},
79 {"hs_activated", item_size(hs_activated),
80 item_addr(hs_activated), 1},
81 {"num_tx_timeout", item_size(num_tx_timeout),
82 item_addr(num_tx_timeout), 1},
83 {"num_cmd_timeout", item_size(num_cmd_timeout),
84 item_addr(num_cmd_timeout), 1},
85 {"timeout_cmd_id", item_size(timeout_cmd_id),
86 item_addr(timeout_cmd_id), 1},
87 {"timeout_cmd_act", item_size(timeout_cmd_act),
88 item_addr(timeout_cmd_act), 1},
89 {"last_cmd_id", item_size(last_cmd_id),
90 item_addr(last_cmd_id), DBG_CMD_NUM},
91 {"last_cmd_act", item_size(last_cmd_act),
92 item_addr(last_cmd_act), DBG_CMD_NUM},
93 {"last_cmd_index", item_size(last_cmd_index),
94 item_addr(last_cmd_index), 1},
95 {"last_cmd_resp_id", item_size(last_cmd_resp_id),
96 item_addr(last_cmd_resp_id), DBG_CMD_NUM},
97 {"last_cmd_resp_index", item_size(last_cmd_resp_index),
98 item_addr(last_cmd_resp_index), 1},
99 {"last_event", item_size(last_event),
100 item_addr(last_event), DBG_CMD_NUM},
101 {"last_event_index", item_size(last_event_index),
102 item_addr(last_event_index), 1},
103 {"num_cmd_h2c_fail", item_size(num_cmd_host_to_card_failure),
104 item_addr(num_cmd_host_to_card_failure), 1},
105 {"num_cmd_sleep_cfm_fail",
106 item_size(num_cmd_sleep_cfm_host_to_card_failure),
107 item_addr(num_cmd_sleep_cfm_host_to_card_failure), 1},
108 {"num_tx_h2c_fail", item_size(num_tx_host_to_card_failure),
109 item_addr(num_tx_host_to_card_failure), 1},
110 {"num_evt_deauth", item_size(num_event_deauth),
111 item_addr(num_event_deauth), 1},
112 {"num_evt_disassoc", item_size(num_event_disassoc),
113 item_addr(num_event_disassoc), 1},
114 {"num_evt_link_lost", item_size(num_event_link_lost),
115 item_addr(num_event_link_lost), 1},
116 {"num_cmd_deauth", item_size(num_cmd_deauth),
117 item_addr(num_cmd_deauth), 1},
118 {"num_cmd_assoc_ok", item_size(num_cmd_assoc_success),
119 item_addr(num_cmd_assoc_success), 1},
120 {"num_cmd_assoc_fail", item_size(num_cmd_assoc_failure),
121 item_addr(num_cmd_assoc_failure), 1},
122 {"cmd_sent", item_size(cmd_sent),
123 item_addr(cmd_sent), 1},
124 {"data_sent", item_size(data_sent),
125 item_addr(data_sent), 1},
126 {"cmd_resp_received", item_size(cmd_resp_received),
127 item_addr(cmd_resp_received), 1},
128 {"event_received", item_size(event_received),
129 item_addr(event_received), 1},
130
131 /* variables defined in struct mwifiex_adapter */
132 {"cmd_pending", adapter_item_size(cmd_pending),
133 adapter_item_addr(cmd_pending), 1},
134 {"tx_pending", adapter_item_size(tx_pending),
135 adapter_item_addr(tx_pending), 1},
136 {"rx_pending", adapter_item_size(rx_pending),
137 adapter_item_addr(rx_pending), 1},
138};
139
140static int num_of_items = ARRAY_SIZE(items);
141
142/*
143 * Generic proc file open handler.
144 *
145 * This function is called every time a file is accessed for read or write.
146 */
147static int
148mwifiex_open_generic(struct inode *inode, struct file *file)
149{
150 file->private_data = inode->i_private;
151 return 0;
152}
153
154/*
155 * Proc info file read handler.
156 *
157 * This function is called when the 'info' file is opened for reading.
158 * It prints the following driver related information -
159 * - Driver name
160 * - Driver version
161 * - Driver extended version
162 * - Interface name
163 * - BSS mode
164 * - Media state (connected or disconnected)
165 * - MAC address
166 * - Total number of Tx bytes
167 * - Total number of Rx bytes
168 * - Total number of Tx packets
169 * - Total number of Rx packets
170 * - Total number of dropped Tx packets
171 * - Total number of dropped Rx packets
172 * - Total number of corrupted Tx packets
173 * - Total number of corrupted Rx packets
174 * - Carrier status (on or off)
175 * - Tx queue status (started or stopped)
176 *
177 * For STA mode drivers, it also prints the following extra -
178 * - ESSID
179 * - BSSID
180 * - Channel
181 * - Region code
182 * - Multicast count
183 * - Multicast addresses
184 */
185static ssize_t
186mwifiex_info_read(struct file *file, char __user *ubuf,
187 size_t count, loff_t *ppos)
188{
189 struct mwifiex_private *priv =
190 (struct mwifiex_private *) file->private_data;
191 struct net_device *netdev = priv->netdev;
192 struct netdev_hw_addr *ha;
193 unsigned long page = get_zeroed_page(GFP_KERNEL);
194 char *p = (char *) page, fmt[64];
195 struct mwifiex_bss_info info;
196 ssize_t ret;
197 int i = 0;
198
199 if (!p)
200 return -ENOMEM;
201
202 memset(&info, 0, sizeof(info));
203 ret = mwifiex_get_bss_info(priv, &info);
204 if (ret)
205 goto free_and_exit;
206
207 mwifiex_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1);
208
209 if (!priv->version_str[0])
210 mwifiex_get_ver_ext(priv);
211
212 p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
213 p += sprintf(p, "driver_version = %s", fmt);
214 p += sprintf(p, "\nverext = %s", priv->version_str);
215 p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);
216 p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]);
217 p += sprintf(p, "media_state=\"%s\"\n",
218 (!priv->media_connected ? "Disconnected" : "Connected"));
219 p += sprintf(p, "mac_address=\"%02x:%02x:%02x:%02x:%02x:%02x\"\n",
220 netdev->dev_addr[0], netdev->dev_addr[1],
221 netdev->dev_addr[2], netdev->dev_addr[3],
222 netdev->dev_addr[4], netdev->dev_addr[5]);
223
224 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) {
225 p += sprintf(p, "multicast_count=\"%d\"\n",
226 netdev_mc_count(netdev));
227 p += sprintf(p, "essid=\"%s\"\n", info.ssid.ssid);
228 p += sprintf(p, "bssid=\"%02x:%02x:%02x:%02x:%02x:%02x\"\n",
229 info.bssid[0], info.bssid[1],
230 info.bssid[2], info.bssid[3],
231 info.bssid[4], info.bssid[5]);
232 p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan);
233 p += sprintf(p, "region_code = \"%02x\"\n", info.region_code);
234
235 netdev_for_each_mc_addr(ha, netdev)
236 p += sprintf(p, "multicast_address[%d]="
237 "\"%02x:%02x:%02x:%02x:%02x:%02x\"\n", i++,
238 ha->addr[0], ha->addr[1],
239 ha->addr[2], ha->addr[3],
240 ha->addr[4], ha->addr[5]);
241 }
242
243 p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes);
244 p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes);
245 p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets);
246 p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets);
247 p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped);
248 p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped);
249 p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors);
250 p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors);
251 p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev))
252 ? "on" : "off"));
253 p += sprintf(p, "tx queue %s\n", ((netif_queue_stopped(priv->netdev))
254 ? "stopped" : "started"));
255
256 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
257 (unsigned long) p - page);
258
259free_and_exit:
260 free_page(page);
261 return ret;
262}
263
264/*
265 * Proc getlog file read handler.
266 *
267 * This function is called when the 'getlog' file is opened for reading
268 * It prints the following log information -
269 * - Number of multicast Tx frames
270 * - Number of failed packets
271 * - Number of Tx retries
272 * - Number of multicast Tx retries
273 * - Number of duplicate frames
274 * - Number of RTS successes
275 * - Number of RTS failures
276 * - Number of ACK failures
277 * - Number of fragmented Rx frames
278 * - Number of multicast Rx frames
279 * - Number of FCS errors
280 * - Number of Tx frames
281 * - WEP ICV error counts
282 */
283static ssize_t
284mwifiex_getlog_read(struct file *file, char __user *ubuf,
285 size_t count, loff_t *ppos)
286{
287 struct mwifiex_private *priv =
288 (struct mwifiex_private *) file->private_data;
289 unsigned long page = get_zeroed_page(GFP_KERNEL);
290 char *p = (char *) page;
291 ssize_t ret;
292 struct mwifiex_ds_get_stats stats;
293
294 if (!p)
295 return -ENOMEM;
296
297 memset(&stats, 0, sizeof(stats));
298 ret = mwifiex_get_stats_info(priv, &stats);
299 if (ret)
300 goto free_and_exit;
301
302 p += sprintf(p, "\n"
303 "mcasttxframe %u\n"
304 "failed %u\n"
305 "retry %u\n"
306 "multiretry %u\n"
307 "framedup %u\n"
308 "rtssuccess %u\n"
309 "rtsfailure %u\n"
310 "ackfailure %u\n"
311 "rxfrag %u\n"
312 "mcastrxframe %u\n"
313 "fcserror %u\n"
314 "txframe %u\n"
315 "wepicverrcnt-1 %u\n"
316 "wepicverrcnt-2 %u\n"
317 "wepicverrcnt-3 %u\n"
318 "wepicverrcnt-4 %u\n",
319 stats.mcast_tx_frame,
320 stats.failed,
321 stats.retry,
322 stats.multi_retry,
323 stats.frame_dup,
324 stats.rts_success,
325 stats.rts_failure,
326 stats.ack_failure,
327 stats.rx_frag,
328 stats.mcast_rx_frame,
329 stats.fcs_error,
330 stats.tx_frame,
331 stats.wep_icv_error[0],
332 stats.wep_icv_error[1],
333 stats.wep_icv_error[2],
334 stats.wep_icv_error[3]);
335
336
337 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
338 (unsigned long) p - page);
339
340free_and_exit:
341 free_page(page);
342 return ret;
343}
344
345static struct mwifiex_debug_info info;
346
347/*
348 * Proc debug file read handler.
349 *
350 * This function is called when the 'debug' file is opened for reading
351 * It prints the following log information -
352 * - Interrupt count
353 * - WMM AC VO packets count
354 * - WMM AC VI packets count
355 * - WMM AC BE packets count
356 * - WMM AC BK packets count
357 * - Maximum Tx buffer size
358 * - Tx buffer size
359 * - Current Tx buffer size
360 * - Power Save mode
361 * - Power Save state
362 * - Deep Sleep status
363 * - Device wakeup required status
364 * - Number of wakeup tries
365 * - Host Sleep configured status
366 * - Host Sleep activated status
367 * - Number of Tx timeouts
368 * - Number of command timeouts
369 * - Last timed out command ID
370 * - Last timed out command action
371 * - Last command ID
372 * - Last command action
373 * - Last command index
374 * - Last command response ID
375 * - Last command response index
376 * - Last event
377 * - Last event index
378 * - Number of host to card command failures
379 * - Number of sleep confirm command failures
380 * - Number of host to card data failure
381 * - Number of deauthentication events
382 * - Number of disassociation events
383 * - Number of link lost events
384 * - Number of deauthentication commands
385 * - Number of association success commands
386 * - Number of association failure commands
387 * - Number of commands sent
388 * - Number of data packets sent
389 * - Number of command responses received
390 * - Number of events received
391 * - Tx BA stream table (TID, RA)
392 * - Rx reorder table (TID, TA, Start window, Window size, Buffer)
393 */
394static ssize_t
395mwifiex_debug_read(struct file *file, char __user *ubuf,
396 size_t count, loff_t *ppos)
397{
398 struct mwifiex_private *priv =
399 (struct mwifiex_private *) file->private_data;
400 struct mwifiex_debug_data *d = &items[0];
401 unsigned long page = get_zeroed_page(GFP_KERNEL);
402 char *p = (char *) page;
403 ssize_t ret;
404 size_t size, addr;
405 long val;
406 int i, j;
407
408 if (!p)
409 return -ENOMEM;
410
411 ret = mwifiex_get_debug_info(priv, &info);
412 if (ret)
413 goto free_and_exit;
414
415 for (i = 0; i < num_of_items; i++) {
416 p += sprintf(p, "%s=", d[i].name);
417
418 size = d[i].size / d[i].num;
419
420 if (i < (num_of_items - 3))
421 addr = d[i].addr + (size_t) &info;
422 else /* The last 3 items are struct mwifiex_adapter variables */
423 addr = d[i].addr + (size_t) priv->adapter;
424
425 for (j = 0; j < d[i].num; j++) {
426 switch (size) {
427 case 1:
428 val = *((u8 *) addr);
429 break;
430 case 2:
431 val = *((u16 *) addr);
432 break;
433 case 4:
434 val = *((u32 *) addr);
435 break;
436 case 8:
437 val = *((long long *) addr);
438 break;
439 default:
440 val = -1;
441 break;
442 }
443
444 p += sprintf(p, "%#lx ", val);
445 addr += size;
446 }
447
448 p += sprintf(p, "\n");
449 }
450
451 if (info.tx_tbl_num) {
452 p += sprintf(p, "Tx BA stream table:\n");
453 for (i = 0; i < info.tx_tbl_num; i++)
454 p += sprintf(p, "tid = %d, "
455 "ra = %02x:%02x:%02x:%02x:%02x:%02x\n",
456 info.tx_tbl[i].tid, info.tx_tbl[i].ra[0],
457 info.tx_tbl[i].ra[1], info.tx_tbl[i].ra[2],
458 info.tx_tbl[i].ra[3], info.tx_tbl[i].ra[4],
459 info.tx_tbl[i].ra[5]);
460 }
461
462 if (info.rx_tbl_num) {
463 p += sprintf(p, "Rx reorder table:\n");
464 for (i = 0; i < info.rx_tbl_num; i++) {
465
466 p += sprintf(p, "tid = %d, "
467 "ta = %02x:%02x:%02x:%02x:%02x:%02x, "
468 "start_win = %d, "
469 "win_size = %d, buffer: ",
470 info.rx_tbl[i].tid,
471 info.rx_tbl[i].ta[0], info.rx_tbl[i].ta[1],
472 info.rx_tbl[i].ta[2], info.rx_tbl[i].ta[3],
473 info.rx_tbl[i].ta[4], info.rx_tbl[i].ta[5],
474 info.rx_tbl[i].start_win,
475 info.rx_tbl[i].win_size);
476
477 for (j = 0; j < info.rx_tbl[i].win_size; j++)
478 p += sprintf(p, "%c ",
479 info.rx_tbl[i].buffer[j] ?
480 '1' : '0');
481
482 p += sprintf(p, "\n");
483 }
484 }
485
486 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
487 (unsigned long) p - page);
488
489free_and_exit:
490 free_page(page);
491 return ret;
492}
493
494static u32 saved_reg_type, saved_reg_offset, saved_reg_value;
495
496/*
497 * Proc regrdwr file write handler.
498 *
499 * This function is called when the 'regrdwr' file is opened for writing
500 *
501 * This function can be used to write to a register.
502 */
503static ssize_t
504mwifiex_regrdwr_write(struct file *file,
505 const char __user *ubuf, size_t count, loff_t *ppos)
506{
507 unsigned long addr = get_zeroed_page(GFP_KERNEL);
508 char *buf = (char *) addr;
509 size_t buf_size = min(count, (size_t) (PAGE_SIZE - 1));
510 int ret;
511 u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX;
512
513 if (!buf)
514 return -ENOMEM;
515
516
517 if (copy_from_user(buf, ubuf, buf_size)) {
518 ret = -EFAULT;
519 goto done;
520 }
521
522 sscanf(buf, "%u %x %x", &reg_type, &reg_offset, &reg_value);
523
524 if (reg_type == 0 || reg_offset == 0) {
525 ret = -EINVAL;
526 goto done;
527 } else {
528 saved_reg_type = reg_type;
529 saved_reg_offset = reg_offset;
530 saved_reg_value = reg_value;
531 ret = count;
532 }
533done:
534 free_page(addr);
535 return ret;
536}
537
538/*
539 * Proc regrdwr file read handler.
540 *
541 * This function is called when the 'regrdwr' file is opened for reading
542 *
543 * This function can be used to read from a register.
544 */
545static ssize_t
546mwifiex_regrdwr_read(struct file *file, char __user *ubuf,
547 size_t count, loff_t *ppos)
548{
549 struct mwifiex_private *priv =
550 (struct mwifiex_private *) file->private_data;
551 unsigned long addr = get_zeroed_page(GFP_KERNEL);
552 char *buf = (char *) addr;
553 int pos = 0, ret = 0;
554 u32 reg_value;
555
556 if (!buf)
557 return -ENOMEM;
558
559 if (!saved_reg_type) {
560 /* No command has been given */
561 pos += snprintf(buf, PAGE_SIZE, "0");
562 goto done;
563 }
564 /* Set command has been given */
565 if (saved_reg_value != UINT_MAX) {
566 ret = mwifiex_reg_write(priv, saved_reg_type, saved_reg_offset,
567 saved_reg_value);
568
569 pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n",
570 saved_reg_type, saved_reg_offset,
571 saved_reg_value);
572
573 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
574
575 goto done;
576 }
577 /* Get command has been given */
578 ret = mwifiex_reg_read(priv, saved_reg_type,
579 saved_reg_offset, &reg_value);
580 if (ret) {
581 ret = -EINVAL;
582 goto done;
583 }
584
585 pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type,
586 saved_reg_offset, reg_value);
587
588 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
589
590done:
591 free_page(addr);
592 return ret;
593}
594
595static u32 saved_offset = -1, saved_bytes = -1;
596
597/*
598 * Proc rdeeprom file write handler.
599 *
600 * This function is called when the 'rdeeprom' file is opened for writing
601 *
602 * This function can be used to write to a RDEEPROM location.
603 */
604static ssize_t
605mwifiex_rdeeprom_write(struct file *file,
606 const char __user *ubuf, size_t count, loff_t *ppos)
607{
608 unsigned long addr = get_zeroed_page(GFP_KERNEL);
609 char *buf = (char *) addr;
610 size_t buf_size = min(count, (size_t) (PAGE_SIZE - 1));
611 int ret = 0;
612 int offset = -1, bytes = -1;
613
614 if (!buf)
615 return -ENOMEM;
616
617
618 if (copy_from_user(buf, ubuf, buf_size)) {
619 ret = -EFAULT;
620 goto done;
621 }
622
623 sscanf(buf, "%d %d", &offset, &bytes);
624
625 if (offset == -1 || bytes == -1) {
626 ret = -EINVAL;
627 goto done;
628 } else {
629 saved_offset = offset;
630 saved_bytes = bytes;
631 ret = count;
632 }
633done:
634 free_page(addr);
635 return ret;
636}
637
638/*
639 * Proc rdeeprom read write handler.
640 *
641 * This function is called when the 'rdeeprom' file is opened for reading
642 *
643 * This function can be used to read from a RDEEPROM location.
644 */
645static ssize_t
646mwifiex_rdeeprom_read(struct file *file, char __user *ubuf,
647 size_t count, loff_t *ppos)
648{
649 struct mwifiex_private *priv =
650 (struct mwifiex_private *) file->private_data;
651 unsigned long addr = get_zeroed_page(GFP_KERNEL);
652 char *buf = (char *) addr;
653 int pos = 0, ret = 0, i;
654 u8 value[MAX_EEPROM_DATA];
655
656 if (!buf)
657 return -ENOMEM;
658
659 if (saved_offset == -1) {
660 /* No command has been given */
661 pos += snprintf(buf, PAGE_SIZE, "0");
662 goto done;
663 }
664
665 /* Get command has been given */
666 ret = mwifiex_eeprom_read(priv, (u16) saved_offset,
667 (u16) saved_bytes, value);
668 if (ret) {
669 ret = -EINVAL;
670 goto done;
671 }
672
673 pos += snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes);
674
675 for (i = 0; i < saved_bytes; i++)
676 pos += snprintf(buf + strlen(buf), PAGE_SIZE, "%d ", value[i]);
677
678 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
679
680done:
681 free_page(addr);
682 return ret;
683}
684
685
686#define MWIFIEX_DFS_ADD_FILE(name) do { \
687 if (!debugfs_create_file(#name, 0644, priv->dfs_dev_dir, \
688 priv, &mwifiex_dfs_##name##_fops)) \
689 return; \
690} while (0);
691
692#define MWIFIEX_DFS_FILE_OPS(name) \
693static const struct file_operations mwifiex_dfs_##name##_fops = { \
694 .read = mwifiex_##name##_read, \
695 .write = mwifiex_##name##_write, \
696 .open = mwifiex_open_generic, \
697};
698
699#define MWIFIEX_DFS_FILE_READ_OPS(name) \
700static const struct file_operations mwifiex_dfs_##name##_fops = { \
701 .read = mwifiex_##name##_read, \
702 .open = mwifiex_open_generic, \
703};
704
705#define MWIFIEX_DFS_FILE_WRITE_OPS(name) \
706static const struct file_operations mwifiex_dfs_##name##_fops = { \
707 .write = mwifiex_##name##_write, \
708 .open = mwifiex_open_generic, \
709};
710
711
712MWIFIEX_DFS_FILE_READ_OPS(info);
713MWIFIEX_DFS_FILE_READ_OPS(debug);
714MWIFIEX_DFS_FILE_READ_OPS(getlog);
715MWIFIEX_DFS_FILE_OPS(regrdwr);
716MWIFIEX_DFS_FILE_OPS(rdeeprom);
717
718/*
719 * This function creates the debug FS directory structure and the files.
720 */
721void
722mwifiex_dev_debugfs_init(struct mwifiex_private *priv)
723{
724 if (!mwifiex_dfs_dir || !priv)
725 return;
726
727 priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name,
728 mwifiex_dfs_dir);
729
730 if (!priv->dfs_dev_dir)
731 return;
732
733 MWIFIEX_DFS_ADD_FILE(info);
734 MWIFIEX_DFS_ADD_FILE(debug);
735 MWIFIEX_DFS_ADD_FILE(getlog);
736 MWIFIEX_DFS_ADD_FILE(regrdwr);
737 MWIFIEX_DFS_ADD_FILE(rdeeprom);
738}
739
740/*
741 * This function removes the debug FS directory structure and the files.
742 */
743void
744mwifiex_dev_debugfs_remove(struct mwifiex_private *priv)
745{
746 if (!priv)
747 return;
748
749 debugfs_remove_recursive(priv->dfs_dev_dir);
750}
751
752/*
753 * This function creates the top level proc directory.
754 */
755void
756mwifiex_debugfs_init(void)
757{
758 if (!mwifiex_dfs_dir)
759 mwifiex_dfs_dir = debugfs_create_dir("mwifiex", NULL);
760}
761
762/*
763 * This function removes the top level proc directory.
764 */
765void
766mwifiex_debugfs_remove(void)
767{
768 if (mwifiex_dfs_dir)
769 debugfs_remove(mwifiex_dfs_dir);
770}
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-09 23:06:13 -0400