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5e6e3a92 BZ |
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 | ||
26 | static struct dentry *mwifiex_dfs_dir; | |
27 | ||
28 | static char *bss_modes[] = { | |
29 | "Unknown", | |
5e6e3a92 | 30 | "Ad-hoc", |
38869d79 | 31 | "Managed", |
5e6e3a92 BZ |
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 | ||
43 | struct 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 | ||
50 | static 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 */ | |
600f5d90 AK |
132 | {"cmd_pending", adapter_item_size(cmd_pending), |
133 | adapter_item_addr(cmd_pending), 1}, | |
5e6e3a92 BZ |
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 | ||
140 | static 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 | */ | |
147 | static int | |
148 | mwifiex_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 | */ | |
185 | static ssize_t | |
186 | mwifiex_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; | |
270e58e8 | 196 | ssize_t ret; |
5e6e3a92 BZ |
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")); | |
037b559a | 219 | p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr); |
5e6e3a92 BZ |
220 | |
221 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) { | |
222 | p += sprintf(p, "multicast_count=\"%d\"\n", | |
223 | netdev_mc_count(netdev)); | |
224 | p += sprintf(p, "essid=\"%s\"\n", info.ssid.ssid); | |
037b559a | 225 | p += sprintf(p, "bssid=\"%pM\"\n", info.bssid); |
5e6e3a92 BZ |
226 | p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan); |
227 | p += sprintf(p, "region_code = \"%02x\"\n", info.region_code); | |
228 | ||
229 | netdev_for_each_mc_addr(ha, netdev) | |
037b559a AS |
230 | p += sprintf(p, "multicast_address[%d]=\"%pM\"\n", |
231 | i++, ha->addr); | |
5e6e3a92 BZ |
232 | } |
233 | ||
234 | p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes); | |
235 | p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes); | |
236 | p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets); | |
237 | p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets); | |
238 | p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped); | |
239 | p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped); | |
240 | p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors); | |
241 | p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors); | |
242 | p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev)) | |
243 | ? "on" : "off")); | |
244 | p += sprintf(p, "tx queue %s\n", ((netif_queue_stopped(priv->netdev)) | |
245 | ? "stopped" : "started")); | |
246 | ||
247 | ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, | |
248 | (unsigned long) p - page); | |
249 | ||
250 | free_and_exit: | |
251 | free_page(page); | |
252 | return ret; | |
253 | } | |
254 | ||
255 | /* | |
256 | * Proc getlog file read handler. | |
257 | * | |
258 | * This function is called when the 'getlog' file is opened for reading | |
259 | * It prints the following log information - | |
260 | * - Number of multicast Tx frames | |
261 | * - Number of failed packets | |
262 | * - Number of Tx retries | |
263 | * - Number of multicast Tx retries | |
264 | * - Number of duplicate frames | |
265 | * - Number of RTS successes | |
266 | * - Number of RTS failures | |
267 | * - Number of ACK failures | |
268 | * - Number of fragmented Rx frames | |
269 | * - Number of multicast Rx frames | |
270 | * - Number of FCS errors | |
271 | * - Number of Tx frames | |
272 | * - WEP ICV error counts | |
273 | */ | |
274 | static ssize_t | |
275 | mwifiex_getlog_read(struct file *file, char __user *ubuf, | |
276 | size_t count, loff_t *ppos) | |
277 | { | |
278 | struct mwifiex_private *priv = | |
279 | (struct mwifiex_private *) file->private_data; | |
280 | unsigned long page = get_zeroed_page(GFP_KERNEL); | |
281 | char *p = (char *) page; | |
270e58e8 | 282 | ssize_t ret; |
5e6e3a92 BZ |
283 | struct mwifiex_ds_get_stats stats; |
284 | ||
285 | if (!p) | |
286 | return -ENOMEM; | |
287 | ||
288 | memset(&stats, 0, sizeof(stats)); | |
289 | ret = mwifiex_get_stats_info(priv, &stats); | |
290 | if (ret) | |
291 | goto free_and_exit; | |
292 | ||
293 | p += sprintf(p, "\n" | |
294 | "mcasttxframe %u\n" | |
295 | "failed %u\n" | |
296 | "retry %u\n" | |
297 | "multiretry %u\n" | |
298 | "framedup %u\n" | |
299 | "rtssuccess %u\n" | |
300 | "rtsfailure %u\n" | |
301 | "ackfailure %u\n" | |
302 | "rxfrag %u\n" | |
303 | "mcastrxframe %u\n" | |
304 | "fcserror %u\n" | |
305 | "txframe %u\n" | |
306 | "wepicverrcnt-1 %u\n" | |
307 | "wepicverrcnt-2 %u\n" | |
308 | "wepicverrcnt-3 %u\n" | |
309 | "wepicverrcnt-4 %u\n", | |
310 | stats.mcast_tx_frame, | |
311 | stats.failed, | |
312 | stats.retry, | |
313 | stats.multi_retry, | |
314 | stats.frame_dup, | |
315 | stats.rts_success, | |
316 | stats.rts_failure, | |
317 | stats.ack_failure, | |
318 | stats.rx_frag, | |
319 | stats.mcast_rx_frame, | |
320 | stats.fcs_error, | |
321 | stats.tx_frame, | |
322 | stats.wep_icv_error[0], | |
323 | stats.wep_icv_error[1], | |
324 | stats.wep_icv_error[2], | |
325 | stats.wep_icv_error[3]); | |
326 | ||
327 | ||
328 | ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, | |
329 | (unsigned long) p - page); | |
330 | ||
331 | free_and_exit: | |
332 | free_page(page); | |
333 | return ret; | |
334 | } | |
335 | ||
336 | static struct mwifiex_debug_info info; | |
337 | ||
338 | /* | |
339 | * Proc debug file read handler. | |
340 | * | |
341 | * This function is called when the 'debug' file is opened for reading | |
342 | * It prints the following log information - | |
343 | * - Interrupt count | |
344 | * - WMM AC VO packets count | |
345 | * - WMM AC VI packets count | |
346 | * - WMM AC BE packets count | |
347 | * - WMM AC BK packets count | |
348 | * - Maximum Tx buffer size | |
349 | * - Tx buffer size | |
350 | * - Current Tx buffer size | |
351 | * - Power Save mode | |
352 | * - Power Save state | |
353 | * - Deep Sleep status | |
354 | * - Device wakeup required status | |
355 | * - Number of wakeup tries | |
356 | * - Host Sleep configured status | |
357 | * - Host Sleep activated status | |
358 | * - Number of Tx timeouts | |
359 | * - Number of command timeouts | |
360 | * - Last timed out command ID | |
361 | * - Last timed out command action | |
362 | * - Last command ID | |
363 | * - Last command action | |
364 | * - Last command index | |
365 | * - Last command response ID | |
366 | * - Last command response index | |
367 | * - Last event | |
368 | * - Last event index | |
369 | * - Number of host to card command failures | |
370 | * - Number of sleep confirm command failures | |
371 | * - Number of host to card data failure | |
372 | * - Number of deauthentication events | |
373 | * - Number of disassociation events | |
374 | * - Number of link lost events | |
375 | * - Number of deauthentication commands | |
376 | * - Number of association success commands | |
377 | * - Number of association failure commands | |
378 | * - Number of commands sent | |
379 | * - Number of data packets sent | |
380 | * - Number of command responses received | |
381 | * - Number of events received | |
382 | * - Tx BA stream table (TID, RA) | |
383 | * - Rx reorder table (TID, TA, Start window, Window size, Buffer) | |
384 | */ | |
385 | static ssize_t | |
386 | mwifiex_debug_read(struct file *file, char __user *ubuf, | |
387 | size_t count, loff_t *ppos) | |
388 | { | |
389 | struct mwifiex_private *priv = | |
390 | (struct mwifiex_private *) file->private_data; | |
391 | struct mwifiex_debug_data *d = &items[0]; | |
392 | unsigned long page = get_zeroed_page(GFP_KERNEL); | |
393 | char *p = (char *) page; | |
270e58e8 | 394 | ssize_t ret; |
5e6e3a92 BZ |
395 | size_t size, addr; |
396 | long val; | |
397 | int i, j; | |
398 | ||
399 | if (!p) | |
400 | return -ENOMEM; | |
401 | ||
402 | ret = mwifiex_get_debug_info(priv, &info); | |
403 | if (ret) | |
404 | goto free_and_exit; | |
405 | ||
406 | for (i = 0; i < num_of_items; i++) { | |
407 | p += sprintf(p, "%s=", d[i].name); | |
408 | ||
409 | size = d[i].size / d[i].num; | |
410 | ||
411 | if (i < (num_of_items - 3)) | |
412 | addr = d[i].addr + (size_t) &info; | |
413 | else /* The last 3 items are struct mwifiex_adapter variables */ | |
414 | addr = d[i].addr + (size_t) priv->adapter; | |
415 | ||
416 | for (j = 0; j < d[i].num; j++) { | |
417 | switch (size) { | |
418 | case 1: | |
419 | val = *((u8 *) addr); | |
420 | break; | |
421 | case 2: | |
422 | val = *((u16 *) addr); | |
423 | break; | |
424 | case 4: | |
425 | val = *((u32 *) addr); | |
426 | break; | |
427 | case 8: | |
428 | val = *((long long *) addr); | |
429 | break; | |
430 | default: | |
431 | val = -1; | |
432 | break; | |
433 | } | |
434 | ||
435 | p += sprintf(p, "%#lx ", val); | |
436 | addr += size; | |
437 | } | |
438 | ||
439 | p += sprintf(p, "\n"); | |
440 | } | |
441 | ||
442 | if (info.tx_tbl_num) { | |
443 | p += sprintf(p, "Tx BA stream table:\n"); | |
444 | for (i = 0; i < info.tx_tbl_num; i++) | |
037b559a AS |
445 | p += sprintf(p, "tid = %d, ra = %pM\n", |
446 | info.tx_tbl[i].tid, info.tx_tbl[i].ra); | |
5e6e3a92 BZ |
447 | } |
448 | ||
449 | if (info.rx_tbl_num) { | |
450 | p += sprintf(p, "Rx reorder table:\n"); | |
451 | for (i = 0; i < info.rx_tbl_num; i++) { | |
037b559a | 452 | p += sprintf(p, "tid = %d, ta = %pM, " |
5e6e3a92 BZ |
453 | "start_win = %d, " |
454 | "win_size = %d, buffer: ", | |
455 | info.rx_tbl[i].tid, | |
037b559a | 456 | info.rx_tbl[i].ta, |
5e6e3a92 BZ |
457 | info.rx_tbl[i].start_win, |
458 | info.rx_tbl[i].win_size); | |
459 | ||
460 | for (j = 0; j < info.rx_tbl[i].win_size; j++) | |
461 | p += sprintf(p, "%c ", | |
462 | info.rx_tbl[i].buffer[j] ? | |
463 | '1' : '0'); | |
464 | ||
465 | p += sprintf(p, "\n"); | |
466 | } | |
467 | } | |
468 | ||
469 | ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, | |
470 | (unsigned long) p - page); | |
471 | ||
472 | free_and_exit: | |
473 | free_page(page); | |
474 | return ret; | |
475 | } | |
476 | ||
477 | static u32 saved_reg_type, saved_reg_offset, saved_reg_value; | |
478 | ||
479 | /* | |
480 | * Proc regrdwr file write handler. | |
481 | * | |
482 | * This function is called when the 'regrdwr' file is opened for writing | |
483 | * | |
484 | * This function can be used to write to a register. | |
485 | */ | |
486 | static ssize_t | |
487 | mwifiex_regrdwr_write(struct file *file, | |
488 | const char __user *ubuf, size_t count, loff_t *ppos) | |
489 | { | |
490 | unsigned long addr = get_zeroed_page(GFP_KERNEL); | |
491 | char *buf = (char *) addr; | |
492 | size_t buf_size = min(count, (size_t) (PAGE_SIZE - 1)); | |
270e58e8 | 493 | int ret; |
5e6e3a92 BZ |
494 | u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX; |
495 | ||
496 | if (!buf) | |
497 | return -ENOMEM; | |
498 | ||
499 | ||
500 | if (copy_from_user(buf, ubuf, buf_size)) { | |
501 | ret = -EFAULT; | |
502 | goto done; | |
503 | } | |
504 | ||
505 | sscanf(buf, "%u %x %x", ®_type, ®_offset, ®_value); | |
506 | ||
507 | if (reg_type == 0 || reg_offset == 0) { | |
508 | ret = -EINVAL; | |
509 | goto done; | |
510 | } else { | |
511 | saved_reg_type = reg_type; | |
512 | saved_reg_offset = reg_offset; | |
513 | saved_reg_value = reg_value; | |
514 | ret = count; | |
515 | } | |
516 | done: | |
517 | free_page(addr); | |
518 | return ret; | |
519 | } | |
520 | ||
521 | /* | |
522 | * Proc regrdwr file read handler. | |
523 | * | |
524 | * This function is called when the 'regrdwr' file is opened for reading | |
525 | * | |
526 | * This function can be used to read from a register. | |
527 | */ | |
528 | static ssize_t | |
529 | mwifiex_regrdwr_read(struct file *file, char __user *ubuf, | |
530 | size_t count, loff_t *ppos) | |
531 | { | |
532 | struct mwifiex_private *priv = | |
533 | (struct mwifiex_private *) file->private_data; | |
534 | unsigned long addr = get_zeroed_page(GFP_KERNEL); | |
535 | char *buf = (char *) addr; | |
536 | int pos = 0, ret = 0; | |
537 | u32 reg_value; | |
538 | ||
539 | if (!buf) | |
540 | return -ENOMEM; | |
541 | ||
542 | if (!saved_reg_type) { | |
543 | /* No command has been given */ | |
544 | pos += snprintf(buf, PAGE_SIZE, "0"); | |
545 | goto done; | |
546 | } | |
547 | /* Set command has been given */ | |
548 | if (saved_reg_value != UINT_MAX) { | |
549 | ret = mwifiex_reg_write(priv, saved_reg_type, saved_reg_offset, | |
550 | saved_reg_value); | |
551 | ||
552 | pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", | |
553 | saved_reg_type, saved_reg_offset, | |
554 | saved_reg_value); | |
555 | ||
556 | ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); | |
557 | ||
558 | goto done; | |
559 | } | |
560 | /* Get command has been given */ | |
561 | ret = mwifiex_reg_read(priv, saved_reg_type, | |
562 | saved_reg_offset, ®_value); | |
563 | if (ret) { | |
564 | ret = -EINVAL; | |
565 | goto done; | |
566 | } | |
567 | ||
568 | pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type, | |
569 | saved_reg_offset, reg_value); | |
570 | ||
571 | ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); | |
572 | ||
573 | done: | |
574 | free_page(addr); | |
575 | return ret; | |
576 | } | |
577 | ||
578 | static u32 saved_offset = -1, saved_bytes = -1; | |
579 | ||
580 | /* | |
581 | * Proc rdeeprom file write handler. | |
582 | * | |
583 | * This function is called when the 'rdeeprom' file is opened for writing | |
584 | * | |
585 | * This function can be used to write to a RDEEPROM location. | |
586 | */ | |
587 | static ssize_t | |
588 | mwifiex_rdeeprom_write(struct file *file, | |
589 | const char __user *ubuf, size_t count, loff_t *ppos) | |
590 | { | |
591 | unsigned long addr = get_zeroed_page(GFP_KERNEL); | |
592 | char *buf = (char *) addr; | |
593 | size_t buf_size = min(count, (size_t) (PAGE_SIZE - 1)); | |
594 | int ret = 0; | |
595 | int offset = -1, bytes = -1; | |
596 | ||
597 | if (!buf) | |
598 | return -ENOMEM; | |
599 | ||
600 | ||
601 | if (copy_from_user(buf, ubuf, buf_size)) { | |
602 | ret = -EFAULT; | |
603 | goto done; | |
604 | } | |
605 | ||
606 | sscanf(buf, "%d %d", &offset, &bytes); | |
607 | ||
608 | if (offset == -1 || bytes == -1) { | |
609 | ret = -EINVAL; | |
610 | goto done; | |
611 | } else { | |
612 | saved_offset = offset; | |
613 | saved_bytes = bytes; | |
614 | ret = count; | |
615 | } | |
616 | done: | |
617 | free_page(addr); | |
618 | return ret; | |
619 | } | |
620 | ||
621 | /* | |
622 | * Proc rdeeprom read write handler. | |
623 | * | |
624 | * This function is called when the 'rdeeprom' file is opened for reading | |
625 | * | |
626 | * This function can be used to read from a RDEEPROM location. | |
627 | */ | |
628 | static ssize_t | |
629 | mwifiex_rdeeprom_read(struct file *file, char __user *ubuf, | |
630 | size_t count, loff_t *ppos) | |
631 | { | |
632 | struct mwifiex_private *priv = | |
633 | (struct mwifiex_private *) file->private_data; | |
634 | unsigned long addr = get_zeroed_page(GFP_KERNEL); | |
635 | char *buf = (char *) addr; | |
270e58e8 | 636 | int pos = 0, ret = 0, i; |
5e6e3a92 BZ |
637 | u8 value[MAX_EEPROM_DATA]; |
638 | ||
639 | if (!buf) | |
640 | return -ENOMEM; | |
641 | ||
642 | if (saved_offset == -1) { | |
643 | /* No command has been given */ | |
644 | pos += snprintf(buf, PAGE_SIZE, "0"); | |
645 | goto done; | |
646 | } | |
647 | ||
648 | /* Get command has been given */ | |
649 | ret = mwifiex_eeprom_read(priv, (u16) saved_offset, | |
650 | (u16) saved_bytes, value); | |
651 | if (ret) { | |
652 | ret = -EINVAL; | |
653 | goto done; | |
654 | } | |
655 | ||
656 | pos += snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes); | |
657 | ||
658 | for (i = 0; i < saved_bytes; i++) | |
659 | pos += snprintf(buf + strlen(buf), PAGE_SIZE, "%d ", value[i]); | |
660 | ||
661 | ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); | |
662 | ||
663 | done: | |
664 | free_page(addr); | |
665 | return ret; | |
666 | } | |
667 | ||
668 | ||
669 | #define MWIFIEX_DFS_ADD_FILE(name) do { \ | |
670 | if (!debugfs_create_file(#name, 0644, priv->dfs_dev_dir, \ | |
671 | priv, &mwifiex_dfs_##name##_fops)) \ | |
672 | return; \ | |
673 | } while (0); | |
674 | ||
675 | #define MWIFIEX_DFS_FILE_OPS(name) \ | |
676 | static const struct file_operations mwifiex_dfs_##name##_fops = { \ | |
677 | .read = mwifiex_##name##_read, \ | |
678 | .write = mwifiex_##name##_write, \ | |
679 | .open = mwifiex_open_generic, \ | |
680 | }; | |
681 | ||
682 | #define MWIFIEX_DFS_FILE_READ_OPS(name) \ | |
683 | static const struct file_operations mwifiex_dfs_##name##_fops = { \ | |
684 | .read = mwifiex_##name##_read, \ | |
685 | .open = mwifiex_open_generic, \ | |
686 | }; | |
687 | ||
688 | #define MWIFIEX_DFS_FILE_WRITE_OPS(name) \ | |
689 | static const struct file_operations mwifiex_dfs_##name##_fops = { \ | |
690 | .write = mwifiex_##name##_write, \ | |
691 | .open = mwifiex_open_generic, \ | |
692 | }; | |
693 | ||
694 | ||
695 | MWIFIEX_DFS_FILE_READ_OPS(info); | |
696 | MWIFIEX_DFS_FILE_READ_OPS(debug); | |
697 | MWIFIEX_DFS_FILE_READ_OPS(getlog); | |
698 | MWIFIEX_DFS_FILE_OPS(regrdwr); | |
699 | MWIFIEX_DFS_FILE_OPS(rdeeprom); | |
700 | ||
701 | /* | |
702 | * This function creates the debug FS directory structure and the files. | |
703 | */ | |
704 | void | |
705 | mwifiex_dev_debugfs_init(struct mwifiex_private *priv) | |
706 | { | |
707 | if (!mwifiex_dfs_dir || !priv) | |
708 | return; | |
709 | ||
710 | priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name, | |
711 | mwifiex_dfs_dir); | |
712 | ||
713 | if (!priv->dfs_dev_dir) | |
714 | return; | |
715 | ||
716 | MWIFIEX_DFS_ADD_FILE(info); | |
717 | MWIFIEX_DFS_ADD_FILE(debug); | |
718 | MWIFIEX_DFS_ADD_FILE(getlog); | |
719 | MWIFIEX_DFS_ADD_FILE(regrdwr); | |
720 | MWIFIEX_DFS_ADD_FILE(rdeeprom); | |
5e6e3a92 BZ |
721 | } |
722 | ||
723 | /* | |
724 | * This function removes the debug FS directory structure and the files. | |
725 | */ | |
726 | void | |
727 | mwifiex_dev_debugfs_remove(struct mwifiex_private *priv) | |
728 | { | |
729 | if (!priv) | |
730 | return; | |
731 | ||
732 | debugfs_remove_recursive(priv->dfs_dev_dir); | |
5e6e3a92 BZ |
733 | } |
734 | ||
735 | /* | |
736 | * This function creates the top level proc directory. | |
737 | */ | |
738 | void | |
739 | mwifiex_debugfs_init(void) | |
740 | { | |
741 | if (!mwifiex_dfs_dir) | |
742 | mwifiex_dfs_dir = debugfs_create_dir("mwifiex", NULL); | |
743 | } | |
744 | ||
745 | /* | |
746 | * This function removes the top level proc directory. | |
747 | */ | |
748 | void | |
749 | mwifiex_debugfs_remove(void) | |
750 | { | |
751 | if (mwifiex_dfs_dir) | |
752 | debugfs_remove(mwifiex_dfs_dir); | |
753 | } |