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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[] = { | |
f873ded2 MG |
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", | |
5e6e3a92 BZ |
40 | }; |
41 | ||
42 | /* size/addr for mwifiex_debug_info */ | |
43 | #define item_size(n) (FIELD_SIZEOF(struct mwifiex_debug_info, n)) | |
44 | #define item_addr(n) (offsetof(struct mwifiex_debug_info, n)) | |
45 | ||
46 | /* size/addr for struct mwifiex_adapter */ | |
47 | #define adapter_item_size(n) (FIELD_SIZEOF(struct mwifiex_adapter, n)) | |
48 | #define adapter_item_addr(n) (offsetof(struct mwifiex_adapter, n)) | |
49 | ||
50 | struct mwifiex_debug_data { | |
51 | char name[32]; /* variable/array name */ | |
52 | u32 size; /* size of the variable/array */ | |
53 | size_t addr; /* address of the variable/array */ | |
54 | int num; /* number of variables in an array */ | |
55 | }; | |
56 | ||
57 | static struct mwifiex_debug_data items[] = { | |
58 | {"int_counter", item_size(int_counter), | |
59 | item_addr(int_counter), 1}, | |
60 | {"wmm_ac_vo", item_size(packets_out[WMM_AC_VO]), | |
61 | item_addr(packets_out[WMM_AC_VO]), 1}, | |
62 | {"wmm_ac_vi", item_size(packets_out[WMM_AC_VI]), | |
63 | item_addr(packets_out[WMM_AC_VI]), 1}, | |
64 | {"wmm_ac_be", item_size(packets_out[WMM_AC_BE]), | |
65 | item_addr(packets_out[WMM_AC_BE]), 1}, | |
66 | {"wmm_ac_bk", item_size(packets_out[WMM_AC_BK]), | |
67 | item_addr(packets_out[WMM_AC_BK]), 1}, | |
5e6e3a92 BZ |
68 | {"tx_buf_size", item_size(tx_buf_size), |
69 | item_addr(tx_buf_size), 1}, | |
70 | {"curr_tx_buf_size", item_size(curr_tx_buf_size), | |
71 | item_addr(curr_tx_buf_size), 1}, | |
72 | {"ps_mode", item_size(ps_mode), | |
73 | item_addr(ps_mode), 1}, | |
74 | {"ps_state", item_size(ps_state), | |
75 | item_addr(ps_state), 1}, | |
76 | {"is_deep_sleep", item_size(is_deep_sleep), | |
77 | item_addr(is_deep_sleep), 1}, | |
78 | {"wakeup_dev_req", item_size(pm_wakeup_card_req), | |
79 | item_addr(pm_wakeup_card_req), 1}, | |
80 | {"wakeup_tries", item_size(pm_wakeup_fw_try), | |
81 | item_addr(pm_wakeup_fw_try), 1}, | |
82 | {"hs_configured", item_size(is_hs_configured), | |
83 | item_addr(is_hs_configured), 1}, | |
84 | {"hs_activated", item_size(hs_activated), | |
85 | item_addr(hs_activated), 1}, | |
86 | {"num_tx_timeout", item_size(num_tx_timeout), | |
87 | item_addr(num_tx_timeout), 1}, | |
88 | {"num_cmd_timeout", item_size(num_cmd_timeout), | |
89 | item_addr(num_cmd_timeout), 1}, | |
90 | {"timeout_cmd_id", item_size(timeout_cmd_id), | |
91 | item_addr(timeout_cmd_id), 1}, | |
92 | {"timeout_cmd_act", item_size(timeout_cmd_act), | |
93 | item_addr(timeout_cmd_act), 1}, | |
94 | {"last_cmd_id", item_size(last_cmd_id), | |
95 | item_addr(last_cmd_id), DBG_CMD_NUM}, | |
96 | {"last_cmd_act", item_size(last_cmd_act), | |
97 | item_addr(last_cmd_act), DBG_CMD_NUM}, | |
98 | {"last_cmd_index", item_size(last_cmd_index), | |
99 | item_addr(last_cmd_index), 1}, | |
100 | {"last_cmd_resp_id", item_size(last_cmd_resp_id), | |
101 | item_addr(last_cmd_resp_id), DBG_CMD_NUM}, | |
102 | {"last_cmd_resp_index", item_size(last_cmd_resp_index), | |
103 | item_addr(last_cmd_resp_index), 1}, | |
104 | {"last_event", item_size(last_event), | |
105 | item_addr(last_event), DBG_CMD_NUM}, | |
106 | {"last_event_index", item_size(last_event_index), | |
107 | item_addr(last_event_index), 1}, | |
108 | {"num_cmd_h2c_fail", item_size(num_cmd_host_to_card_failure), | |
109 | item_addr(num_cmd_host_to_card_failure), 1}, | |
110 | {"num_cmd_sleep_cfm_fail", | |
111 | item_size(num_cmd_sleep_cfm_host_to_card_failure), | |
112 | item_addr(num_cmd_sleep_cfm_host_to_card_failure), 1}, | |
113 | {"num_tx_h2c_fail", item_size(num_tx_host_to_card_failure), | |
114 | item_addr(num_tx_host_to_card_failure), 1}, | |
115 | {"num_evt_deauth", item_size(num_event_deauth), | |
116 | item_addr(num_event_deauth), 1}, | |
117 | {"num_evt_disassoc", item_size(num_event_disassoc), | |
118 | item_addr(num_event_disassoc), 1}, | |
119 | {"num_evt_link_lost", item_size(num_event_link_lost), | |
120 | item_addr(num_event_link_lost), 1}, | |
121 | {"num_cmd_deauth", item_size(num_cmd_deauth), | |
122 | item_addr(num_cmd_deauth), 1}, | |
123 | {"num_cmd_assoc_ok", item_size(num_cmd_assoc_success), | |
124 | item_addr(num_cmd_assoc_success), 1}, | |
125 | {"num_cmd_assoc_fail", item_size(num_cmd_assoc_failure), | |
126 | item_addr(num_cmd_assoc_failure), 1}, | |
127 | {"cmd_sent", item_size(cmd_sent), | |
128 | item_addr(cmd_sent), 1}, | |
129 | {"data_sent", item_size(data_sent), | |
130 | item_addr(data_sent), 1}, | |
131 | {"cmd_resp_received", item_size(cmd_resp_received), | |
132 | item_addr(cmd_resp_received), 1}, | |
133 | {"event_received", item_size(event_received), | |
134 | item_addr(event_received), 1}, | |
135 | ||
136 | /* variables defined in struct mwifiex_adapter */ | |
600f5d90 AK |
137 | {"cmd_pending", adapter_item_size(cmd_pending), |
138 | adapter_item_addr(cmd_pending), 1}, | |
5e6e3a92 BZ |
139 | {"tx_pending", adapter_item_size(tx_pending), |
140 | adapter_item_addr(tx_pending), 1}, | |
141 | {"rx_pending", adapter_item_size(rx_pending), | |
142 | adapter_item_addr(rx_pending), 1}, | |
143 | }; | |
144 | ||
145 | static int num_of_items = ARRAY_SIZE(items); | |
146 | ||
5e6e3a92 BZ |
147 | /* |
148 | * Proc info file read handler. | |
149 | * | |
150 | * This function is called when the 'info' file is opened for reading. | |
151 | * It prints the following driver related information - | |
152 | * - Driver name | |
153 | * - Driver version | |
154 | * - Driver extended version | |
155 | * - Interface name | |
156 | * - BSS mode | |
157 | * - Media state (connected or disconnected) | |
158 | * - MAC address | |
159 | * - Total number of Tx bytes | |
160 | * - Total number of Rx bytes | |
161 | * - Total number of Tx packets | |
162 | * - Total number of Rx packets | |
163 | * - Total number of dropped Tx packets | |
164 | * - Total number of dropped Rx packets | |
165 | * - Total number of corrupted Tx packets | |
166 | * - Total number of corrupted Rx packets | |
167 | * - Carrier status (on or off) | |
168 | * - Tx queue status (started or stopped) | |
169 | * | |
170 | * For STA mode drivers, it also prints the following extra - | |
171 | * - ESSID | |
172 | * - BSSID | |
173 | * - Channel | |
174 | * - Region code | |
175 | * - Multicast count | |
176 | * - Multicast addresses | |
177 | */ | |
178 | static ssize_t | |
179 | mwifiex_info_read(struct file *file, char __user *ubuf, | |
180 | size_t count, loff_t *ppos) | |
181 | { | |
182 | struct mwifiex_private *priv = | |
183 | (struct mwifiex_private *) file->private_data; | |
184 | struct net_device *netdev = priv->netdev; | |
185 | struct netdev_hw_addr *ha; | |
47411a06 | 186 | struct netdev_queue *txq; |
5e6e3a92 BZ |
187 | unsigned long page = get_zeroed_page(GFP_KERNEL); |
188 | char *p = (char *) page, fmt[64]; | |
189 | struct mwifiex_bss_info info; | |
270e58e8 | 190 | ssize_t ret; |
5e6e3a92 BZ |
191 | int i = 0; |
192 | ||
193 | if (!p) | |
194 | return -ENOMEM; | |
195 | ||
196 | memset(&info, 0, sizeof(info)); | |
197 | ret = mwifiex_get_bss_info(priv, &info); | |
198 | if (ret) | |
199 | goto free_and_exit; | |
200 | ||
201 | mwifiex_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1); | |
202 | ||
203 | if (!priv->version_str[0]) | |
204 | mwifiex_get_ver_ext(priv); | |
205 | ||
206 | p += sprintf(p, "driver_name = " "\"mwifiex\"\n"); | |
207 | p += sprintf(p, "driver_version = %s", fmt); | |
208 | p += sprintf(p, "\nverext = %s", priv->version_str); | |
209 | p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name); | |
f873ded2 MG |
210 | |
211 | if (info.bss_mode >= ARRAY_SIZE(bss_modes)) | |
212 | p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode); | |
213 | else | |
214 | p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]); | |
215 | ||
5e6e3a92 BZ |
216 | p += sprintf(p, "media_state=\"%s\"\n", |
217 | (!priv->media_connected ? "Disconnected" : "Connected")); | |
037b559a | 218 | p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr); |
5e6e3a92 BZ |
219 | |
220 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) { | |
221 | p += sprintf(p, "multicast_count=\"%d\"\n", | |
222 | netdev_mc_count(netdev)); | |
223 | p += sprintf(p, "essid=\"%s\"\n", info.ssid.ssid); | |
037b559a | 224 | p += sprintf(p, "bssid=\"%pM\"\n", info.bssid); |
5e6e3a92 | 225 | p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan); |
5e218b7a | 226 | p += sprintf(p, "country_code = \"%s\"\n", info.country_code); |
5e6e3a92 BZ |
227 | |
228 | netdev_for_each_mc_addr(ha, netdev) | |
037b559a AS |
229 | p += sprintf(p, "multicast_address[%d]=\"%pM\"\n", |
230 | i++, ha->addr); | |
5e6e3a92 BZ |
231 | } |
232 | ||
233 | p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes); | |
234 | p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes); | |
235 | p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets); | |
236 | p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets); | |
237 | p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped); | |
238 | p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped); | |
239 | p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors); | |
240 | p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors); | |
241 | p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev)) | |
242 | ? "on" : "off")); | |
47411a06 AP |
243 | p += sprintf(p, "tx queue"); |
244 | for (i = 0; i < netdev->num_tx_queues; i++) { | |
245 | txq = netdev_get_tx_queue(netdev, i); | |
246 | p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ? | |
247 | "stopped" : "started"); | |
248 | } | |
249 | p += sprintf(p, "\n"); | |
5e6e3a92 BZ |
250 | |
251 | ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, | |
252 | (unsigned long) p - page); | |
253 | ||
254 | free_and_exit: | |
255 | free_page(page); | |
256 | return ret; | |
257 | } | |
258 | ||
259 | /* | |
260 | * Proc getlog file read handler. | |
261 | * | |
262 | * This function is called when the 'getlog' file is opened for reading | |
263 | * It prints the following log information - | |
264 | * - Number of multicast Tx frames | |
265 | * - Number of failed packets | |
266 | * - Number of Tx retries | |
267 | * - Number of multicast Tx retries | |
268 | * - Number of duplicate frames | |
269 | * - Number of RTS successes | |
270 | * - Number of RTS failures | |
271 | * - Number of ACK failures | |
272 | * - Number of fragmented Rx frames | |
273 | * - Number of multicast Rx frames | |
274 | * - Number of FCS errors | |
275 | * - Number of Tx frames | |
276 | * - WEP ICV error counts | |
277 | */ | |
278 | static ssize_t | |
279 | mwifiex_getlog_read(struct file *file, char __user *ubuf, | |
280 | size_t count, loff_t *ppos) | |
281 | { | |
282 | struct mwifiex_private *priv = | |
283 | (struct mwifiex_private *) file->private_data; | |
284 | unsigned long page = get_zeroed_page(GFP_KERNEL); | |
285 | char *p = (char *) page; | |
270e58e8 | 286 | ssize_t ret; |
5e6e3a92 BZ |
287 | struct mwifiex_ds_get_stats stats; |
288 | ||
289 | if (!p) | |
290 | return -ENOMEM; | |
291 | ||
292 | memset(&stats, 0, sizeof(stats)); | |
293 | ret = mwifiex_get_stats_info(priv, &stats); | |
294 | if (ret) | |
295 | goto free_and_exit; | |
296 | ||
297 | p += sprintf(p, "\n" | |
298 | "mcasttxframe %u\n" | |
299 | "failed %u\n" | |
300 | "retry %u\n" | |
301 | "multiretry %u\n" | |
302 | "framedup %u\n" | |
303 | "rtssuccess %u\n" | |
304 | "rtsfailure %u\n" | |
305 | "ackfailure %u\n" | |
306 | "rxfrag %u\n" | |
307 | "mcastrxframe %u\n" | |
308 | "fcserror %u\n" | |
309 | "txframe %u\n" | |
310 | "wepicverrcnt-1 %u\n" | |
311 | "wepicverrcnt-2 %u\n" | |
312 | "wepicverrcnt-3 %u\n" | |
313 | "wepicverrcnt-4 %u\n", | |
314 | stats.mcast_tx_frame, | |
315 | stats.failed, | |
316 | stats.retry, | |
317 | stats.multi_retry, | |
318 | stats.frame_dup, | |
319 | stats.rts_success, | |
320 | stats.rts_failure, | |
321 | stats.ack_failure, | |
322 | stats.rx_frag, | |
323 | stats.mcast_rx_frame, | |
324 | stats.fcs_error, | |
325 | stats.tx_frame, | |
326 | stats.wep_icv_error[0], | |
327 | stats.wep_icv_error[1], | |
328 | stats.wep_icv_error[2], | |
329 | stats.wep_icv_error[3]); | |
330 | ||
331 | ||
332 | ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, | |
333 | (unsigned long) p - page); | |
334 | ||
335 | free_and_exit: | |
336 | free_page(page); | |
337 | return ret; | |
338 | } | |
339 | ||
340 | static struct mwifiex_debug_info info; | |
341 | ||
342 | /* | |
343 | * Proc debug file read handler. | |
344 | * | |
345 | * This function is called when the 'debug' file is opened for reading | |
346 | * It prints the following log information - | |
347 | * - Interrupt count | |
348 | * - WMM AC VO packets count | |
349 | * - WMM AC VI packets count | |
350 | * - WMM AC BE packets count | |
351 | * - WMM AC BK packets count | |
352 | * - Maximum Tx buffer size | |
353 | * - Tx buffer size | |
354 | * - Current Tx buffer size | |
355 | * - Power Save mode | |
356 | * - Power Save state | |
357 | * - Deep Sleep status | |
358 | * - Device wakeup required status | |
359 | * - Number of wakeup tries | |
360 | * - Host Sleep configured status | |
361 | * - Host Sleep activated status | |
362 | * - Number of Tx timeouts | |
363 | * - Number of command timeouts | |
364 | * - Last timed out command ID | |
365 | * - Last timed out command action | |
366 | * - Last command ID | |
367 | * - Last command action | |
368 | * - Last command index | |
369 | * - Last command response ID | |
370 | * - Last command response index | |
371 | * - Last event | |
372 | * - Last event index | |
373 | * - Number of host to card command failures | |
374 | * - Number of sleep confirm command failures | |
375 | * - Number of host to card data failure | |
376 | * - Number of deauthentication events | |
377 | * - Number of disassociation events | |
378 | * - Number of link lost events | |
379 | * - Number of deauthentication commands | |
380 | * - Number of association success commands | |
381 | * - Number of association failure commands | |
382 | * - Number of commands sent | |
383 | * - Number of data packets sent | |
384 | * - Number of command responses received | |
385 | * - Number of events received | |
386 | * - Tx BA stream table (TID, RA) | |
387 | * - Rx reorder table (TID, TA, Start window, Window size, Buffer) | |
388 | */ | |
389 | static ssize_t | |
390 | mwifiex_debug_read(struct file *file, char __user *ubuf, | |
391 | size_t count, loff_t *ppos) | |
392 | { | |
393 | struct mwifiex_private *priv = | |
394 | (struct mwifiex_private *) file->private_data; | |
395 | struct mwifiex_debug_data *d = &items[0]; | |
396 | unsigned long page = get_zeroed_page(GFP_KERNEL); | |
397 | char *p = (char *) page; | |
270e58e8 | 398 | ssize_t ret; |
5e6e3a92 BZ |
399 | size_t size, addr; |
400 | long val; | |
401 | int i, j; | |
402 | ||
403 | if (!p) | |
404 | return -ENOMEM; | |
405 | ||
406 | ret = mwifiex_get_debug_info(priv, &info); | |
407 | if (ret) | |
408 | goto free_and_exit; | |
409 | ||
410 | for (i = 0; i < num_of_items; i++) { | |
411 | p += sprintf(p, "%s=", d[i].name); | |
412 | ||
413 | size = d[i].size / d[i].num; | |
414 | ||
415 | if (i < (num_of_items - 3)) | |
416 | addr = d[i].addr + (size_t) &info; | |
417 | else /* The last 3 items are struct mwifiex_adapter variables */ | |
418 | addr = d[i].addr + (size_t) priv->adapter; | |
419 | ||
420 | for (j = 0; j < d[i].num; j++) { | |
421 | switch (size) { | |
422 | case 1: | |
423 | val = *((u8 *) addr); | |
424 | break; | |
425 | case 2: | |
426 | val = *((u16 *) addr); | |
427 | break; | |
428 | case 4: | |
429 | val = *((u32 *) addr); | |
430 | break; | |
431 | case 8: | |
432 | val = *((long long *) addr); | |
433 | break; | |
434 | default: | |
435 | val = -1; | |
436 | break; | |
437 | } | |
438 | ||
439 | p += sprintf(p, "%#lx ", val); | |
440 | addr += size; | |
441 | } | |
442 | ||
443 | p += sprintf(p, "\n"); | |
444 | } | |
445 | ||
446 | if (info.tx_tbl_num) { | |
447 | p += sprintf(p, "Tx BA stream table:\n"); | |
448 | for (i = 0; i < info.tx_tbl_num; i++) | |
037b559a AS |
449 | p += sprintf(p, "tid = %d, ra = %pM\n", |
450 | info.tx_tbl[i].tid, info.tx_tbl[i].ra); | |
5e6e3a92 BZ |
451 | } |
452 | ||
453 | if (info.rx_tbl_num) { | |
454 | p += sprintf(p, "Rx reorder table:\n"); | |
455 | for (i = 0; i < info.rx_tbl_num; i++) { | |
037b559a | 456 | p += sprintf(p, "tid = %d, ta = %pM, " |
5e6e3a92 BZ |
457 | "start_win = %d, " |
458 | "win_size = %d, buffer: ", | |
459 | info.rx_tbl[i].tid, | |
037b559a | 460 | info.rx_tbl[i].ta, |
5e6e3a92 BZ |
461 | info.rx_tbl[i].start_win, |
462 | info.rx_tbl[i].win_size); | |
463 | ||
464 | for (j = 0; j < info.rx_tbl[i].win_size; j++) | |
465 | p += sprintf(p, "%c ", | |
466 | info.rx_tbl[i].buffer[j] ? | |
467 | '1' : '0'); | |
468 | ||
469 | p += sprintf(p, "\n"); | |
470 | } | |
471 | } | |
472 | ||
473 | ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, | |
474 | (unsigned long) p - page); | |
475 | ||
476 | free_and_exit: | |
477 | free_page(page); | |
478 | return ret; | |
479 | } | |
480 | ||
481 | static u32 saved_reg_type, saved_reg_offset, saved_reg_value; | |
482 | ||
483 | /* | |
484 | * Proc regrdwr file write handler. | |
485 | * | |
486 | * This function is called when the 'regrdwr' file is opened for writing | |
487 | * | |
488 | * This function can be used to write to a register. | |
489 | */ | |
490 | static ssize_t | |
491 | mwifiex_regrdwr_write(struct file *file, | |
492 | const char __user *ubuf, size_t count, loff_t *ppos) | |
493 | { | |
494 | unsigned long addr = get_zeroed_page(GFP_KERNEL); | |
495 | char *buf = (char *) addr; | |
496 | size_t buf_size = min(count, (size_t) (PAGE_SIZE - 1)); | |
270e58e8 | 497 | int ret; |
5e6e3a92 BZ |
498 | u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX; |
499 | ||
500 | if (!buf) | |
501 | return -ENOMEM; | |
502 | ||
503 | ||
504 | if (copy_from_user(buf, ubuf, buf_size)) { | |
505 | ret = -EFAULT; | |
506 | goto done; | |
507 | } | |
508 | ||
509 | sscanf(buf, "%u %x %x", ®_type, ®_offset, ®_value); | |
510 | ||
511 | if (reg_type == 0 || reg_offset == 0) { | |
512 | ret = -EINVAL; | |
513 | goto done; | |
514 | } else { | |
515 | saved_reg_type = reg_type; | |
516 | saved_reg_offset = reg_offset; | |
517 | saved_reg_value = reg_value; | |
518 | ret = count; | |
519 | } | |
520 | done: | |
521 | free_page(addr); | |
522 | return ret; | |
523 | } | |
524 | ||
525 | /* | |
526 | * Proc regrdwr file read handler. | |
527 | * | |
528 | * This function is called when the 'regrdwr' file is opened for reading | |
529 | * | |
530 | * This function can be used to read from a register. | |
531 | */ | |
532 | static ssize_t | |
533 | mwifiex_regrdwr_read(struct file *file, char __user *ubuf, | |
534 | size_t count, loff_t *ppos) | |
535 | { | |
536 | struct mwifiex_private *priv = | |
537 | (struct mwifiex_private *) file->private_data; | |
538 | unsigned long addr = get_zeroed_page(GFP_KERNEL); | |
539 | char *buf = (char *) addr; | |
540 | int pos = 0, ret = 0; | |
541 | u32 reg_value; | |
542 | ||
543 | if (!buf) | |
544 | return -ENOMEM; | |
545 | ||
546 | if (!saved_reg_type) { | |
547 | /* No command has been given */ | |
548 | pos += snprintf(buf, PAGE_SIZE, "0"); | |
549 | goto done; | |
550 | } | |
551 | /* Set command has been given */ | |
552 | if (saved_reg_value != UINT_MAX) { | |
553 | ret = mwifiex_reg_write(priv, saved_reg_type, saved_reg_offset, | |
554 | saved_reg_value); | |
555 | ||
556 | pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", | |
557 | saved_reg_type, saved_reg_offset, | |
558 | saved_reg_value); | |
559 | ||
560 | ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); | |
561 | ||
562 | goto done; | |
563 | } | |
564 | /* Get command has been given */ | |
565 | ret = mwifiex_reg_read(priv, saved_reg_type, | |
566 | saved_reg_offset, ®_value); | |
567 | if (ret) { | |
568 | ret = -EINVAL; | |
569 | goto done; | |
570 | } | |
571 | ||
572 | pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type, | |
573 | saved_reg_offset, reg_value); | |
574 | ||
575 | ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); | |
576 | ||
577 | done: | |
578 | free_page(addr); | |
579 | return ret; | |
580 | } | |
581 | ||
582 | static u32 saved_offset = -1, saved_bytes = -1; | |
583 | ||
584 | /* | |
585 | * Proc rdeeprom file write handler. | |
586 | * | |
587 | * This function is called when the 'rdeeprom' file is opened for writing | |
588 | * | |
589 | * This function can be used to write to a RDEEPROM location. | |
590 | */ | |
591 | static ssize_t | |
592 | mwifiex_rdeeprom_write(struct file *file, | |
593 | const char __user *ubuf, size_t count, loff_t *ppos) | |
594 | { | |
595 | unsigned long addr = get_zeroed_page(GFP_KERNEL); | |
596 | char *buf = (char *) addr; | |
597 | size_t buf_size = min(count, (size_t) (PAGE_SIZE - 1)); | |
598 | int ret = 0; | |
599 | int offset = -1, bytes = -1; | |
600 | ||
601 | if (!buf) | |
602 | return -ENOMEM; | |
603 | ||
604 | ||
605 | if (copy_from_user(buf, ubuf, buf_size)) { | |
606 | ret = -EFAULT; | |
607 | goto done; | |
608 | } | |
609 | ||
610 | sscanf(buf, "%d %d", &offset, &bytes); | |
611 | ||
612 | if (offset == -1 || bytes == -1) { | |
613 | ret = -EINVAL; | |
614 | goto done; | |
615 | } else { | |
616 | saved_offset = offset; | |
617 | saved_bytes = bytes; | |
618 | ret = count; | |
619 | } | |
620 | done: | |
621 | free_page(addr); | |
622 | return ret; | |
623 | } | |
624 | ||
625 | /* | |
626 | * Proc rdeeprom read write handler. | |
627 | * | |
628 | * This function is called when the 'rdeeprom' file is opened for reading | |
629 | * | |
630 | * This function can be used to read from a RDEEPROM location. | |
631 | */ | |
632 | static ssize_t | |
633 | mwifiex_rdeeprom_read(struct file *file, char __user *ubuf, | |
634 | size_t count, loff_t *ppos) | |
635 | { | |
636 | struct mwifiex_private *priv = | |
637 | (struct mwifiex_private *) file->private_data; | |
638 | unsigned long addr = get_zeroed_page(GFP_KERNEL); | |
639 | char *buf = (char *) addr; | |
270e58e8 | 640 | int pos = 0, ret = 0, i; |
5e6e3a92 BZ |
641 | u8 value[MAX_EEPROM_DATA]; |
642 | ||
643 | if (!buf) | |
644 | return -ENOMEM; | |
645 | ||
646 | if (saved_offset == -1) { | |
647 | /* No command has been given */ | |
648 | pos += snprintf(buf, PAGE_SIZE, "0"); | |
649 | goto done; | |
650 | } | |
651 | ||
652 | /* Get command has been given */ | |
653 | ret = mwifiex_eeprom_read(priv, (u16) saved_offset, | |
654 | (u16) saved_bytes, value); | |
655 | if (ret) { | |
656 | ret = -EINVAL; | |
657 | goto done; | |
658 | } | |
659 | ||
660 | pos += snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes); | |
661 | ||
662 | for (i = 0; i < saved_bytes; i++) | |
663 | pos += snprintf(buf + strlen(buf), PAGE_SIZE, "%d ", value[i]); | |
664 | ||
665 | ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); | |
666 | ||
667 | done: | |
668 | free_page(addr); | |
669 | return ret; | |
670 | } | |
671 | ||
672 | ||
673 | #define MWIFIEX_DFS_ADD_FILE(name) do { \ | |
674 | if (!debugfs_create_file(#name, 0644, priv->dfs_dev_dir, \ | |
675 | priv, &mwifiex_dfs_##name##_fops)) \ | |
676 | return; \ | |
677 | } while (0); | |
678 | ||
679 | #define MWIFIEX_DFS_FILE_OPS(name) \ | |
680 | static const struct file_operations mwifiex_dfs_##name##_fops = { \ | |
681 | .read = mwifiex_##name##_read, \ | |
682 | .write = mwifiex_##name##_write, \ | |
234e3405 | 683 | .open = simple_open, \ |
5e6e3a92 BZ |
684 | }; |
685 | ||
686 | #define MWIFIEX_DFS_FILE_READ_OPS(name) \ | |
687 | static const struct file_operations mwifiex_dfs_##name##_fops = { \ | |
688 | .read = mwifiex_##name##_read, \ | |
234e3405 | 689 | .open = simple_open, \ |
5e6e3a92 BZ |
690 | }; |
691 | ||
692 | #define MWIFIEX_DFS_FILE_WRITE_OPS(name) \ | |
693 | static const struct file_operations mwifiex_dfs_##name##_fops = { \ | |
694 | .write = mwifiex_##name##_write, \ | |
234e3405 | 695 | .open = simple_open, \ |
5e6e3a92 BZ |
696 | }; |
697 | ||
698 | ||
699 | MWIFIEX_DFS_FILE_READ_OPS(info); | |
700 | MWIFIEX_DFS_FILE_READ_OPS(debug); | |
701 | MWIFIEX_DFS_FILE_READ_OPS(getlog); | |
702 | MWIFIEX_DFS_FILE_OPS(regrdwr); | |
703 | MWIFIEX_DFS_FILE_OPS(rdeeprom); | |
704 | ||
705 | /* | |
706 | * This function creates the debug FS directory structure and the files. | |
707 | */ | |
708 | void | |
709 | mwifiex_dev_debugfs_init(struct mwifiex_private *priv) | |
710 | { | |
711 | if (!mwifiex_dfs_dir || !priv) | |
712 | return; | |
713 | ||
714 | priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name, | |
715 | mwifiex_dfs_dir); | |
716 | ||
717 | if (!priv->dfs_dev_dir) | |
718 | return; | |
719 | ||
720 | MWIFIEX_DFS_ADD_FILE(info); | |
721 | MWIFIEX_DFS_ADD_FILE(debug); | |
722 | MWIFIEX_DFS_ADD_FILE(getlog); | |
723 | MWIFIEX_DFS_ADD_FILE(regrdwr); | |
724 | MWIFIEX_DFS_ADD_FILE(rdeeprom); | |
5e6e3a92 BZ |
725 | } |
726 | ||
727 | /* | |
728 | * This function removes the debug FS directory structure and the files. | |
729 | */ | |
730 | void | |
731 | mwifiex_dev_debugfs_remove(struct mwifiex_private *priv) | |
732 | { | |
733 | if (!priv) | |
734 | return; | |
735 | ||
736 | debugfs_remove_recursive(priv->dfs_dev_dir); | |
5e6e3a92 BZ |
737 | } |
738 | ||
739 | /* | |
740 | * This function creates the top level proc directory. | |
741 | */ | |
742 | void | |
743 | mwifiex_debugfs_init(void) | |
744 | { | |
745 | if (!mwifiex_dfs_dir) | |
746 | mwifiex_dfs_dir = debugfs_create_dir("mwifiex", NULL); | |
747 | } | |
748 | ||
749 | /* | |
750 | * This function removes the top level proc directory. | |
751 | */ | |
752 | void | |
753 | mwifiex_debugfs_remove(void) | |
754 | { | |
755 | if (mwifiex_dfs_dir) | |
756 | debugfs_remove(mwifiex_dfs_dir); | |
757 | } |