drivers/net/wireless/libertas/debugfs.c

   1 #include <linux/module.h>
   2 #include <linux/dcache.h>
   3 #include <linux/debugfs.h>
   4 #include <linux/delay.h>
   5 #include <linux/mm.h>
   6 #include <linux/string.h>
   7 #include <net/iw_handler.h>
   8
   9 #include "dev.h"
  10 #include "decl.h"
  11 #include "host.h"
  12 #include "debugfs.h"
  13
  14 static struct dentry *libertas_dir = NULL;
  15 static char *szStates[] = {
  16         "Connected",
  17         "Disconnected"
  18 };
  19
  20 #ifdef PROC_DEBUG
  21 static void libertas_debug_init(wlan_private * priv, struct net_device *dev);
  22 #endif
  23
  24 static int open_file_generic(struct inode *inode, struct file *file)
  25 {
  26         file->private_data = inode->i_private;
  27         return 0;
  28 }
  29
  30 static ssize_t write_file_dummy(struct file *file, const char __user *buf,
  31                                 size_t count, loff_t *ppos)
  32 {
  33         return -EINVAL;
  34 }
  35
  36 static const size_t len = PAGE_SIZE;
  37
  38 static ssize_t libertas_dev_info(struct file *file, char __user *userbuf,
  39                                   size_t count, loff_t *ppos)
  40 {
  41         wlan_private *priv = file->private_data;
  42         size_t pos = 0;
  43         unsigned long addr = get_zeroed_page(GFP_KERNEL);
  44         char *buf = (char *)addr;
  45         ssize_t res;
  46
  47         pos += snprintf(buf+pos, len-pos, "state = %s\n",
  48                                 szStates[priv->adapter->connect_status]);
  49         pos += snprintf(buf+pos, len-pos, "region_code = %02x\n",
  50                                 (u32) priv->adapter->regioncode);
  51
  52         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
  53
  54         free_page(addr);
  55         return res;
  56 }
  57
  58
  59 static ssize_t libertas_getscantable(struct file *file, char __user *userbuf,
  60                                   size_t count, loff_t *ppos)
  61 {
  62         wlan_private *priv = file->private_data;
  63         size_t pos = 0;
  64         int numscansdone = 0, res;
  65         unsigned long addr = get_zeroed_page(GFP_KERNEL);
  66         char *buf = (char *)addr;
  67         DECLARE_MAC_BUF(mac);
  68         struct bss_descriptor * iter_bss;
  69
  70         pos += snprintf(buf+pos, len-pos,
  71                 "# | ch  | rssi |       bssid       |   cap    | Qual | SSID \n");
  72
  73         mutex_lock(&priv->adapter->lock);
  74         list_for_each_entry (iter_bss, &priv->adapter->network_list, list) {
  75                 u16 ibss = (iter_bss->capability & WLAN_CAPABILITY_IBSS);
  76                 u16 privacy = (iter_bss->capability & WLAN_CAPABILITY_PRIVACY);
  77                 u16 spectrum_mgmt = (iter_bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT);
  78
  79                 pos += snprintf(buf+pos, len-pos,
  80                         "%02u| %03d | %04ld | %s |",
  81                         numscansdone, iter_bss->channel, iter_bss->rssi,
  82                         print_mac(mac, iter_bss->bssid));
  83                 pos += snprintf(buf+pos, len-pos, " %04x-", iter_bss->capability);
  84                 pos += snprintf(buf+pos, len-pos, "%c%c%c |",
  85                                 ibss ? 'A' : 'I', privacy ? 'P' : ' ',
  86                                 spectrum_mgmt ? 'S' : ' ');
  87                 pos += snprintf(buf+pos, len-pos, " %04d |", SCAN_RSSI(iter_bss->rssi));
  88                 pos += snprintf(buf+pos, len-pos, " %s\n",
  89                                 escape_essid(iter_bss->ssid, iter_bss->ssid_len));
  90
  91                 numscansdone++;
  92         }
  93         mutex_unlock(&priv->adapter->lock);
  94
  95         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
  96
  97         free_page(addr);
  98         return res;
  99 }
 100
 101 static ssize_t libertas_sleepparams_write(struct file *file,
 102                                 const char __user *user_buf, size_t count,
 103                                 loff_t *ppos)
 104 {
 105         wlan_private *priv = file->private_data;
 106         ssize_t buf_size, res;
 107         int p1, p2, p3, p4, p5, p6;
 108         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 109         char *buf = (char *)addr;
 110
 111         buf_size = min(count, len - 1);
 112         if (copy_from_user(buf, user_buf, buf_size)) {
 113                 res = -EFAULT;
 114                 goto out_unlock;
 115         }
 116         res = sscanf(buf, "%d %d %d %d %d %d", &p1, &p2, &p3, &p4, &p5, &p6);
 117         if (res != 6) {
 118                 res = -EFAULT;
 119                 goto out_unlock;
 120         }
 121         priv->adapter->sp.sp_error = p1;
 122         priv->adapter->sp.sp_offset = p2;
 123         priv->adapter->sp.sp_stabletime = p3;
 124         priv->adapter->sp.sp_calcontrol = p4;
 125         priv->adapter->sp.sp_extsleepclk = p5;
 126         priv->adapter->sp.sp_reserved = p6;
 127
 128         res = libertas_prepare_and_send_command(priv,
 129                                 CMD_802_11_SLEEP_PARAMS,
 130                                 CMD_ACT_SET,
 131                                 CMD_OPTION_WAITFORRSP, 0, NULL);
 132
 133         if (!res)
 134                 res = count;
 135         else
 136                 res = -EINVAL;
 137
 138 out_unlock:
 139         free_page(addr);
 140         return res;
 141 }
 142
 143 static ssize_t libertas_sleepparams_read(struct file *file, char __user *userbuf,
 144                                   size_t count, loff_t *ppos)
 145 {
 146         wlan_private *priv = file->private_data;
 147         wlan_adapter *adapter = priv->adapter;
 148         ssize_t res;
 149         size_t pos = 0;
 150         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 151         char *buf = (char *)addr;
 152
 153         res = libertas_prepare_and_send_command(priv,
 154                                 CMD_802_11_SLEEP_PARAMS,
 155                                 CMD_ACT_GET,
 156                                 CMD_OPTION_WAITFORRSP, 0, NULL);
 157         if (res) {
 158                 res = -EFAULT;
 159                 goto out_unlock;
 160         }
 161
 162         pos += snprintf(buf, len, "%d %d %d %d %d %d\n", adapter->sp.sp_error,
 163                         adapter->sp.sp_offset, adapter->sp.sp_stabletime,
 164                         adapter->sp.sp_calcontrol, adapter->sp.sp_extsleepclk,
 165                         adapter->sp.sp_reserved);
 166
 167         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 168
 169 out_unlock:
 170         free_page(addr);
 171         return res;
 172 }
 173
 174 static ssize_t libertas_extscan(struct file *file, const char __user *userbuf,
 175                                   size_t count, loff_t *ppos)
 176 {
 177         wlan_private *priv = file->private_data;
 178         ssize_t res, buf_size;
 179         union iwreq_data wrqu;
 180         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 181         char *buf = (char *)addr;
 182
 183         buf_size = min(count, len - 1);
 184         if (copy_from_user(buf, userbuf, buf_size)) {
 185                 res = -EFAULT;
 186                 goto out_unlock;
 187         }
 188
 189         libertas_send_specific_ssid_scan(priv, buf, strlen(buf)-1, 0);
 190
 191         memset(&wrqu, 0, sizeof(union iwreq_data));
 192         wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
 193
 194 out_unlock:
 195         free_page(addr);
 196         return count;
 197 }
 198
 199 static int libertas_parse_chan(char *buf, size_t count,
 200                         struct wlan_ioctl_user_scan_cfg *scan_cfg, int dur)
 201 {
 202         char *start, *end, *hold, *str;
 203         int i = 0;
 204
 205         start = strstr(buf, "chan=");
 206         if (!start)
 207                 return -EINVAL;
 208         start += 5;
 209         end = strchr(start, ' ');
 210         if (!end)
 211                 end = buf + count;
 212         hold = kzalloc((end - start)+1, GFP_KERNEL);
 213         if (!hold)
 214                 return -ENOMEM;
 215         strncpy(hold, start, end - start);
 216         hold[(end-start)+1] = '\0';
 217         while(hold && (str = strsep(&hold, ","))) {
 218                 int chan;
 219                 char band, passive = 0;
 220                 sscanf(str, "%d%c%c", &chan, &band, &passive);
 221                 scan_cfg->chanlist[i].channumber = chan;
 222                 scan_cfg->chanlist[i].scantype = passive ? 1 : 0;
 223                 if (band == 'b' || band == 'g')
 224                         scan_cfg->chanlist[i].radiotype = 0;
 225                 else if (band == 'a')
 226                         scan_cfg->chanlist[i].radiotype = 1;
 227
 228                 scan_cfg->chanlist[i].scantime = dur;
 229                 i++;
 230         }
 231
 232         kfree(hold);
 233         return i;
 234 }
 235
 236 static void libertas_parse_bssid(char *buf, size_t count,
 237                         struct wlan_ioctl_user_scan_cfg *scan_cfg)
 238 {
 239         char *hold;
 240         unsigned int mac[ETH_ALEN];
 241
 242         hold = strstr(buf, "bssid=");
 243         if (!hold)
 244                 return;
 245         hold += 6;
 246         sscanf(hold, MAC_FMT, mac, mac+1, mac+2, mac+3, mac+4, mac+5);
 247         memcpy(scan_cfg->bssid, mac, ETH_ALEN);
 248 }
 249
 250 static void libertas_parse_ssid(char *buf, size_t count,
 251                         struct wlan_ioctl_user_scan_cfg *scan_cfg)
 252 {
 253         char *hold, *end;
 254         ssize_t size;
 255
 256         hold = strstr(buf, "ssid=");
 257         if (!hold)
 258                 return;
 259         hold += 5;
 260         end = strchr(hold, ' ');
 261         if (!end)
 262                 end = buf + count - 1;
 263
 264         size = min((size_t)IW_ESSID_MAX_SIZE, (size_t) (end - hold));
 265         strncpy(scan_cfg->ssid, hold, size);
 266
 267         return;
 268 }
 269
 270 static int libertas_parse_clear(char *buf, size_t count, const char *tag)
 271 {
 272         char *hold;
 273         int val;
 274
 275         hold = strstr(buf, tag);
 276         if (!hold)
 277                 return 0;
 278         hold += strlen(tag);
 279         sscanf(hold, "%d", &val);
 280
 281         if (val != 0)
 282                 val = 1;
 283
 284         return val;
 285 }
 286
 287 static int libertas_parse_dur(char *buf, size_t count,
 288                         struct wlan_ioctl_user_scan_cfg *scan_cfg)
 289 {
 290         char *hold;
 291         int val;
 292
 293         hold = strstr(buf, "dur=");
 294         if (!hold)
 295                 return 0;
 296         hold += 4;
 297         sscanf(hold, "%d", &val);
 298
 299         return val;
 300 }
 301
 302 static void libertas_parse_probes(char *buf, size_t count,
 303                         struct wlan_ioctl_user_scan_cfg *scan_cfg)
 304 {
 305         char *hold;
 306         int val;
 307
 308         hold = strstr(buf, "probes=");
 309         if (!hold)
 310                 return;
 311         hold += 7;
 312         sscanf(hold, "%d", &val);
 313
 314         scan_cfg->numprobes = val;
 315
 316         return;
 317 }
 318
 319 static void libertas_parse_type(char *buf, size_t count,
 320                         struct wlan_ioctl_user_scan_cfg *scan_cfg)
 321 {
 322         char *hold;
 323         int val;
 324
 325         hold = strstr(buf, "type=");
 326         if (!hold)
 327                 return;
 328         hold += 5;
 329         sscanf(hold, "%d", &val);
 330
 331         /* type=1,2 or 3 */
 332         if (val < 1 || val > 3)
 333                 return;
 334
 335         scan_cfg->bsstype = val;
 336
 337         return;
 338 }
 339
 340 static ssize_t libertas_setuserscan(struct file *file,
 341                                     const char __user *userbuf,
 342                                     size_t count, loff_t *ppos)
 343 {
 344         wlan_private *priv = file->private_data;
 345         ssize_t res, buf_size;
 346         struct wlan_ioctl_user_scan_cfg *scan_cfg;
 347         union iwreq_data wrqu;
 348         int dur;
 349         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 350         char *buf = (char *)addr;
 351
 352         scan_cfg = kzalloc(sizeof(struct wlan_ioctl_user_scan_cfg), GFP_KERNEL);
 353         if (!scan_cfg)
 354                 return -ENOMEM;
 355
 356         buf_size = min(count, len - 1);
 357         if (copy_from_user(buf, userbuf, buf_size)) {
 358                 res = -EFAULT;
 359                 goto out_unlock;
 360         }
 361
 362         scan_cfg->bsstype = WLAN_SCAN_BSS_TYPE_ANY;
 363
 364         dur = libertas_parse_dur(buf, count, scan_cfg);
 365         libertas_parse_chan(buf, count, scan_cfg, dur);
 366         libertas_parse_bssid(buf, count, scan_cfg);
 367         scan_cfg->clear_bssid = libertas_parse_clear(buf, count, "clear_bssid=");
 368         libertas_parse_ssid(buf, count, scan_cfg);
 369         scan_cfg->clear_ssid = libertas_parse_clear(buf, count, "clear_ssid=");
 370         libertas_parse_probes(buf, count, scan_cfg);
 371         libertas_parse_type(buf, count, scan_cfg);
 372
 373         wlan_scan_networks(priv, scan_cfg, 1);
 374         wait_event_interruptible(priv->adapter->cmd_pending,
 375                                  !priv->adapter->nr_cmd_pending);
 376
 377         memset(&wrqu, 0x00, sizeof(union iwreq_data));
 378         wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
 379
 380 out_unlock:
 381         free_page(addr);
 382         kfree(scan_cfg);
 383         return count;
 384 }
 385
 386 static int libertas_event_initcmd(wlan_private *priv, void **response_buf,
 387                         struct cmd_ctrl_node **cmdnode,
 388                         struct cmd_ds_command **cmd)
 389 {
 390         u16 wait_option = CMD_OPTION_WAITFORRSP;
 391
 392         if (!(*cmdnode = libertas_get_free_cmd_ctrl_node(priv))) {
 393                 lbs_deb_debugfs("failed libertas_get_free_cmd_ctrl_node\n");
 394                 return -ENOMEM;
 395         }
 396         if (!(*response_buf = kmalloc(3000, GFP_KERNEL))) {
 397                 lbs_deb_debugfs("failed to allocate response buffer!\n");
 398                 return -ENOMEM;
 399         }
 400         libertas_set_cmd_ctrl_node(priv, *cmdnode, 0, wait_option, NULL);
 401         init_waitqueue_head(&(*cmdnode)->cmdwait_q);
 402         (*cmdnode)->pdata_buf = *response_buf;
 403         (*cmdnode)->cmdflags |= CMD_F_HOSTCMD;
 404         (*cmdnode)->cmdwaitqwoken = 0;
 405         *cmd = (struct cmd_ds_command *)(*cmdnode)->bufvirtualaddr;
 406         (*cmd)->command = cpu_to_le16(CMD_802_11_SUBSCRIBE_EVENT);
 407         (*cmd)->seqnum = cpu_to_le16(++priv->adapter->seqnum);
 408         (*cmd)->result = 0;
 409         return 0;
 410 }
 411
 412 static ssize_t libertas_lowrssi_read(struct file *file, char __user *userbuf,
 413                                   size_t count, loff_t *ppos)
 414 {
 415         wlan_private *priv = file->private_data;
 416         wlan_adapter *adapter = priv->adapter;
 417         struct cmd_ctrl_node *pcmdnode;
 418         struct cmd_ds_command *pcmdptr;
 419         struct cmd_ds_802_11_subscribe_event *event;
 420         void *response_buf;
 421         int res, cmd_len;
 422         ssize_t pos = 0;
 423         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 424         char *buf = (char *)addr;
 425
 426         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
 427         if (res < 0) {
 428                 free_page(addr);
 429                 return res;
 430         }
 431
 432         event = &pcmdptr->params.subscribe_event;
 433         event->action = cpu_to_le16(CMD_ACT_GET);
 434         pcmdptr->size = cpu_to_le16(sizeof(*event) + S_DS_GEN);
 435         libertas_queue_cmd(adapter, pcmdnode, 1);
 436         wake_up_interruptible(&priv->waitq);
 437
 438         /* Sleep until response is generated by FW */
 439         wait_event_interruptible(pcmdnode->cmdwait_q,
 440                                  pcmdnode->cmdwaitqwoken);
 441
 442         pcmdptr = response_buf;
 443         if (pcmdptr->result) {
 444                 lbs_pr_err("%s: fail, result=%d\n", __func__,
 445                            le16_to_cpu(pcmdptr->result));
 446                 kfree(response_buf);
 447                 free_page(addr);
 448                 return 0;
 449         }
 450
 451         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
 452                 lbs_pr_err("command response incorrect!\n");
 453                 kfree(response_buf);
 454                 free_page(addr);
 455                 return 0;
 456         }
 457
 458         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
 459         event = (void *)(response_buf + S_DS_GEN);
 460         while (cmd_len < le16_to_cpu(pcmdptr->size)) {
 461                 struct mrvlietypesheader *header = (void *)(response_buf + cmd_len);
 462                 switch (header->type) {
 463                 struct mrvlietypes_rssithreshold  *Lowrssi;
 464                 case __constant_cpu_to_le16(TLV_TYPE_RSSI_LOW):
 465                         Lowrssi = (void *)(response_buf + cmd_len);
 466                         pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
 467                                         Lowrssi->rssivalue,
 468                                         Lowrssi->rssifreq,
 469                                         (event->events & cpu_to_le16(0x0001))?1:0);
 470                 default:
 471                         cmd_len += sizeof(struct mrvlietypes_snrthreshold);
 472                         break;
 473                 }
 474         }
 475
 476         kfree(response_buf);
 477         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 478         free_page(addr);
 479         return res;
 480 }
 481
 482 static u16 libertas_get_events_bitmap(wlan_private *priv)
 483 {
 484         wlan_adapter *adapter = priv->adapter;
 485         struct cmd_ctrl_node *pcmdnode;
 486         struct cmd_ds_command *pcmdptr;
 487         struct cmd_ds_802_11_subscribe_event *event;
 488         void *response_buf;
 489         int res;
 490         u16 event_bitmap;
 491
 492         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
 493         if (res < 0)
 494                 return res;
 495
 496         event = &pcmdptr->params.subscribe_event;
 497         event->action = cpu_to_le16(CMD_ACT_GET);
 498         pcmdptr->size = cpu_to_le16(sizeof(*event) + S_DS_GEN);
 499         libertas_queue_cmd(adapter, pcmdnode, 1);
 500         wake_up_interruptible(&priv->waitq);
 501
 502         /* Sleep until response is generated by FW */
 503         wait_event_interruptible(pcmdnode->cmdwait_q,
 504                                  pcmdnode->cmdwaitqwoken);
 505
 506         pcmdptr = response_buf;
 507
 508         if (pcmdptr->result) {
 509                 lbs_pr_err("%s: fail, result=%d\n", __func__,
 510                            le16_to_cpu(pcmdptr->result));
 511                 kfree(response_buf);
 512                 return 0;
 513         }
 514
 515         if (le16_to_cpu(pcmdptr->command) != CMD_RET(CMD_802_11_SUBSCRIBE_EVENT)) {
 516                 lbs_pr_err("command response incorrect!\n");
 517                 kfree(response_buf);
 518                 return 0;
 519         }
 520
 521         event = (struct cmd_ds_802_11_subscribe_event *)(response_buf + S_DS_GEN);
 522         event_bitmap = le16_to_cpu(event->events);
 523         kfree(response_buf);
 524         return event_bitmap;
 525 }
 526
 527 static ssize_t libertas_lowrssi_write(struct file *file,
 528                                     const char __user *userbuf,
 529                                     size_t count, loff_t *ppos)
 530 {
 531         wlan_private *priv = file->private_data;
 532         wlan_adapter *adapter = priv->adapter;
 533         ssize_t res, buf_size;
 534         int value, freq, subscribed, cmd_len;
 535         struct cmd_ctrl_node *pcmdnode;
 536         struct cmd_ds_command *pcmdptr;
 537         struct cmd_ds_802_11_subscribe_event *event;
 538         struct mrvlietypes_rssithreshold *rssi_threshold;
 539         void *response_buf;
 540         u16 event_bitmap;
 541         u8 *ptr;
 542         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 543         char *buf = (char *)addr;
 544
 545         buf_size = min(count, len - 1);
 546         if (copy_from_user(buf, userbuf, buf_size)) {
 547                 res = -EFAULT;
 548                 goto out_unlock;
 549         }
 550         res = sscanf(buf, "%d %d %d", &value, &freq, &subscribed);
 551         if (res != 3) {
 552                 res = -EFAULT;
 553                 goto out_unlock;
 554         }
 555
 556         event_bitmap = libertas_get_events_bitmap(priv);
 557
 558         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
 559         if (res < 0)
 560                 goto out_unlock;
 561
 562         event = &pcmdptr->params.subscribe_event;
 563         event->action = cpu_to_le16(CMD_ACT_SET);
 564         pcmdptr->size = cpu_to_le16(S_DS_GEN +
 565                 sizeof(struct cmd_ds_802_11_subscribe_event) +
 566                 sizeof(struct mrvlietypes_rssithreshold));
 567
 568         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
 569         ptr = (u8*) pcmdptr+cmd_len;
 570         rssi_threshold = (struct mrvlietypes_rssithreshold *)(ptr);
 571         rssi_threshold->header.type = cpu_to_le16(0x0104);
 572         rssi_threshold->header.len = cpu_to_le16(2);
 573         rssi_threshold->rssivalue = value;
 574         rssi_threshold->rssifreq = freq;
 575         event_bitmap |= subscribed ? 0x0001 : 0x0;
 576         event->events = cpu_to_le16(event_bitmap);
 577
 578         libertas_queue_cmd(adapter, pcmdnode, 1);
 579         wake_up_interruptible(&priv->waitq);
 580
 581         /* Sleep until response is generated by FW */
 582         wait_event_interruptible(pcmdnode->cmdwait_q,
 583                                  pcmdnode->cmdwaitqwoken);
 584
 585         pcmdptr = response_buf;
 586
 587         if (pcmdptr->result) {
 588                 lbs_pr_err("%s: fail, result=%d\n", __func__,
 589                            le16_to_cpu(pcmdptr->result));
 590                 kfree(response_buf);
 591                 free_page(addr);
 592                 return 0;
 593         }
 594
 595         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
 596                 lbs_pr_err("command response incorrect!\n");
 597                 kfree(response_buf);
 598                 free_page(addr);
 599                 return 0;
 600         }
 601
 602         res = count;
 603 out_unlock:
 604         free_page(addr);
 605         return res;
 606 }
 607
 608 static ssize_t libertas_lowsnr_read(struct file *file, char __user *userbuf,
 609                                   size_t count, loff_t *ppos)
 610 {
 611         wlan_private *priv = file->private_data;
 612         wlan_adapter *adapter = priv->adapter;
 613         struct cmd_ctrl_node *pcmdnode;
 614         struct cmd_ds_command *pcmdptr;
 615         struct cmd_ds_802_11_subscribe_event *event;
 616         void *response_buf;
 617         int res, cmd_len;
 618         ssize_t pos = 0;
 619         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 620         char *buf = (char *)addr;
 621
 622         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
 623         if (res < 0) {
 624                 free_page(addr);
 625                 return res;
 626         }
 627
 628         event = &pcmdptr->params.subscribe_event;
 629         event->action = cpu_to_le16(CMD_ACT_GET);
 630         pcmdptr->size = cpu_to_le16(sizeof(*event) + S_DS_GEN);
 631         libertas_queue_cmd(adapter, pcmdnode, 1);
 632         wake_up_interruptible(&priv->waitq);
 633
 634         /* Sleep until response is generated by FW */
 635         wait_event_interruptible(pcmdnode->cmdwait_q,
 636                                  pcmdnode->cmdwaitqwoken);
 637
 638         pcmdptr = response_buf;
 639
 640         if (pcmdptr->result) {
 641                 lbs_pr_err("%s: fail, result=%d\n", __func__,
 642                            le16_to_cpu(pcmdptr->result));
 643                 kfree(response_buf);
 644                 free_page(addr);
 645                 return 0;
 646         }
 647
 648         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
 649                 lbs_pr_err("command response incorrect!\n");
 650                 kfree(response_buf);
 651                 free_page(addr);
 652                 return 0;
 653         }
 654
 655         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
 656         event = (void *)(response_buf + S_DS_GEN);
 657         while (cmd_len < le16_to_cpu(pcmdptr->size)) {
 658                 struct mrvlietypesheader *header = (void *)(response_buf + cmd_len);
 659                 switch (header->type) {
 660                 struct mrvlietypes_snrthreshold *LowSnr;
 661                 case __constant_cpu_to_le16(TLV_TYPE_SNR_LOW):
 662                         LowSnr = (void *)(response_buf + cmd_len);
 663                         pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
 664                                         LowSnr->snrvalue,
 665                                         LowSnr->snrfreq,
 666                                         (event->events & cpu_to_le16(0x0002))?1:0);
 667                 default:
 668                         cmd_len += sizeof(struct mrvlietypes_snrthreshold);
 669                         break;
 670                 }
 671         }
 672
 673         kfree(response_buf);
 674
 675         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 676         free_page(addr);
 677         return res;
 678 }
 679
 680 static ssize_t libertas_lowsnr_write(struct file *file,
 681                                     const char __user *userbuf,
 682                                     size_t count, loff_t *ppos)
 683 {
 684         wlan_private *priv = file->private_data;
 685         wlan_adapter *adapter = priv->adapter;
 686         ssize_t res, buf_size;
 687         int value, freq, subscribed, cmd_len;
 688         struct cmd_ctrl_node *pcmdnode;
 689         struct cmd_ds_command *pcmdptr;
 690         struct cmd_ds_802_11_subscribe_event *event;
 691         struct mrvlietypes_snrthreshold *snr_threshold;
 692         void *response_buf;
 693         u16 event_bitmap;
 694         u8 *ptr;
 695         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 696         char *buf = (char *)addr;
 697
 698         buf_size = min(count, len - 1);
 699         if (copy_from_user(buf, userbuf, buf_size)) {
 700                 res = -EFAULT;
 701                 goto out_unlock;
 702         }
 703         res = sscanf(buf, "%d %d %d", &value, &freq, &subscribed);
 704         if (res != 3) {
 705                 res = -EFAULT;
 706                 goto out_unlock;
 707         }
 708
 709         event_bitmap = libertas_get_events_bitmap(priv);
 710
 711         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
 712         if (res < 0)
 713                 goto out_unlock;
 714
 715         event = &pcmdptr->params.subscribe_event;
 716         event->action = cpu_to_le16(CMD_ACT_SET);
 717         pcmdptr->size = cpu_to_le16(S_DS_GEN +
 718                 sizeof(struct cmd_ds_802_11_subscribe_event) +
 719                 sizeof(struct mrvlietypes_snrthreshold));
 720         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
 721         ptr = (u8*) pcmdptr+cmd_len;
 722         snr_threshold = (struct mrvlietypes_snrthreshold *)(ptr);
 723         snr_threshold->header.type = cpu_to_le16(TLV_TYPE_SNR_LOW);
 724         snr_threshold->header.len = cpu_to_le16(2);
 725         snr_threshold->snrvalue = value;
 726         snr_threshold->snrfreq = freq;
 727         event_bitmap |= subscribed ? 0x0002 : 0x0;
 728         event->events = cpu_to_le16(event_bitmap);
 729
 730         libertas_queue_cmd(adapter, pcmdnode, 1);
 731         wake_up_interruptible(&priv->waitq);
 732
 733         /* Sleep until response is generated by FW */
 734         wait_event_interruptible(pcmdnode->cmdwait_q,
 735                                  pcmdnode->cmdwaitqwoken);
 736
 737         pcmdptr = response_buf;
 738
 739         if (pcmdptr->result) {
 740                 lbs_pr_err("%s: fail, result=%d\n", __func__,
 741                            le16_to_cpu(pcmdptr->result));
 742                 kfree(response_buf);
 743                 free_page(addr);
 744                 return 0;
 745         }
 746
 747         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
 748                 lbs_pr_err("command response incorrect!\n");
 749                 kfree(response_buf);
 750                 free_page(addr);
 751                 return 0;
 752         }
 753
 754         res = count;
 755
 756 out_unlock:
 757         free_page(addr);
 758         return res;
 759 }
 760
 761 static ssize_t libertas_failcount_read(struct file *file, char __user *userbuf,
 762                                   size_t count, loff_t *ppos)
 763 {
 764         wlan_private *priv = file->private_data;
 765         wlan_adapter *adapter = priv->adapter;
 766         struct cmd_ctrl_node *pcmdnode;
 767         struct cmd_ds_command *pcmdptr;
 768         struct cmd_ds_802_11_subscribe_event *event;
 769         void *response_buf;
 770         int res, cmd_len;
 771         ssize_t pos = 0;
 772         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 773         char *buf = (char *)addr;
 774
 775         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
 776         if (res < 0) {
 777                 free_page(addr);
 778                 return res;
 779         }
 780
 781         event = &pcmdptr->params.subscribe_event;
 782         event->action = cpu_to_le16(CMD_ACT_GET);
 783         pcmdptr->size = cpu_to_le16(sizeof(*event) + S_DS_GEN);
 784         libertas_queue_cmd(adapter, pcmdnode, 1);
 785         wake_up_interruptible(&priv->waitq);
 786
 787         /* Sleep until response is generated by FW */
 788         wait_event_interruptible(pcmdnode->cmdwait_q,
 789                                  pcmdnode->cmdwaitqwoken);
 790
 791         pcmdptr = response_buf;
 792
 793         if (pcmdptr->result) {
 794                 lbs_pr_err("%s: fail, result=%d\n", __func__,
 795                            le16_to_cpu(pcmdptr->result));
 796                 kfree(response_buf);
 797                 free_page(addr);
 798                 return 0;
 799         }
 800
 801         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
 802                 lbs_pr_err("command response incorrect!\n");
 803                 kfree(response_buf);
 804                 free_page(addr);
 805                 return 0;
 806         }
 807
 808         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
 809         event = (void *)(response_buf + S_DS_GEN);
 810         while (cmd_len < le16_to_cpu(pcmdptr->size)) {
 811                 struct mrvlietypesheader *header = (void *)(response_buf + cmd_len);
 812                 switch (header->type) {
 813                 struct mrvlietypes_failurecount *failcount;
 814                 case __constant_cpu_to_le16(TLV_TYPE_FAILCOUNT):
 815                         failcount = (void *)(response_buf + cmd_len);
 816                         pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
 817                                         failcount->failvalue,
 818                                         failcount->Failfreq,
 819                                         (event->events & cpu_to_le16(0x0004))?1:0);
 820                 default:
 821                         cmd_len += sizeof(struct mrvlietypes_failurecount);
 822                         break;
 823                 }
 824         }
 825
 826         kfree(response_buf);
 827         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 828         free_page(addr);
 829         return res;
 830 }
 831
 832 static ssize_t libertas_failcount_write(struct file *file,
 833                                     const char __user *userbuf,
 834                                     size_t count, loff_t *ppos)
 835 {
 836         wlan_private *priv = file->private_data;
 837         wlan_adapter *adapter = priv->adapter;
 838         ssize_t res, buf_size;
 839         int value, freq, subscribed, cmd_len;
 840         struct cmd_ctrl_node *pcmdnode;
 841         struct cmd_ds_command *pcmdptr;
 842         struct cmd_ds_802_11_subscribe_event *event;
 843         struct mrvlietypes_failurecount *failcount;
 844         void *response_buf;
 845         u16 event_bitmap;
 846         u8 *ptr;
 847         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 848         char *buf = (char *)addr;
 849
 850         buf_size = min(count, len - 1);
 851         if (copy_from_user(buf, userbuf, buf_size)) {
 852                 res = -EFAULT;
 853                 goto out_unlock;
 854         }
 855         res = sscanf(buf, "%d %d %d", &value, &freq, &subscribed);
 856         if (res != 3) {
 857                 res = -EFAULT;
 858                 goto out_unlock;
 859         }
 860
 861         event_bitmap = libertas_get_events_bitmap(priv);
 862
 863         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
 864         if (res < 0)
 865                 goto out_unlock;
 866
 867         event = &pcmdptr->params.subscribe_event;
 868         event->action = cpu_to_le16(CMD_ACT_SET);
 869         pcmdptr->size = cpu_to_le16(S_DS_GEN +
 870                 sizeof(struct cmd_ds_802_11_subscribe_event) +
 871                 sizeof(struct mrvlietypes_failurecount));
 872         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
 873         ptr = (u8*) pcmdptr+cmd_len;
 874         failcount = (struct mrvlietypes_failurecount *)(ptr);
 875         failcount->header.type = cpu_to_le16(TLV_TYPE_FAILCOUNT);
 876         failcount->header.len = cpu_to_le16(2);
 877         failcount->failvalue = value;
 878         failcount->Failfreq = freq;
 879         event_bitmap |= subscribed ? 0x0004 : 0x0;
 880         event->events = cpu_to_le16(event_bitmap);
 881
 882         libertas_queue_cmd(adapter, pcmdnode, 1);
 883         wake_up_interruptible(&priv->waitq);
 884
 885         /* Sleep until response is generated by FW */
 886         wait_event_interruptible(pcmdnode->cmdwait_q,
 887                                  pcmdnode->cmdwaitqwoken);
 888
 889         pcmdptr = (struct cmd_ds_command *)response_buf;
 890
 891         if (pcmdptr->result) {
 892                 lbs_pr_err("%s: fail, result=%d\n", __func__,
 893                            le16_to_cpu(pcmdptr->result));
 894                 kfree(response_buf);
 895                 free_page(addr);
 896                 return 0;
 897         }
 898
 899         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
 900                 lbs_pr_err("command response incorrect!\n");
 901                 kfree(response_buf);
 902                 free_page(addr);
 903                 return 0;
 904         }
 905
 906         res = count;
 907 out_unlock:
 908         free_page(addr);
 909         return res;
 910 }
 911
 912 static ssize_t libertas_bcnmiss_read(struct file *file, char __user *userbuf,
 913                                   size_t count, loff_t *ppos)
 914 {
 915         wlan_private *priv = file->private_data;
 916         wlan_adapter *adapter = priv->adapter;
 917         struct cmd_ctrl_node *pcmdnode;
 918         struct cmd_ds_command *pcmdptr;
 919         struct cmd_ds_802_11_subscribe_event *event;
 920         void *response_buf;
 921         int res, cmd_len;
 922         ssize_t pos = 0;
 923         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 924         char *buf = (char *)addr;
 925
 926         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
 927         if (res < 0) {
 928                 free_page(addr);
 929                 return res;
 930         }
 931
 932         event = &pcmdptr->params.subscribe_event;
 933         event->action = cpu_to_le16(CMD_ACT_GET);
 934         pcmdptr->size = cpu_to_le16(sizeof(*event) + S_DS_GEN);
 935         libertas_queue_cmd(adapter, pcmdnode, 1);
 936         wake_up_interruptible(&priv->waitq);
 937
 938         /* Sleep until response is generated by FW */
 939         wait_event_interruptible(pcmdnode->cmdwait_q,
 940                                  pcmdnode->cmdwaitqwoken);
 941
 942         pcmdptr = response_buf;
 943
 944         if (pcmdptr->result) {
 945                 lbs_pr_err("%s: fail, result=%d\n", __func__,
 946                            le16_to_cpu(pcmdptr->result));
 947                 free_page(addr);
 948                 kfree(response_buf);
 949                 return 0;
 950         }
 951
 952         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
 953                 lbs_pr_err("command response incorrect!\n");
 954                 free_page(addr);
 955                 kfree(response_buf);
 956                 return 0;
 957         }
 958
 959         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
 960         event = (void *)(response_buf + S_DS_GEN);
 961         while (cmd_len < le16_to_cpu(pcmdptr->size)) {
 962                 struct mrvlietypesheader *header = (void *)(response_buf + cmd_len);
 963                 switch (header->type) {
 964                 struct mrvlietypes_beaconsmissed *bcnmiss;
 965                 case __constant_cpu_to_le16(TLV_TYPE_BCNMISS):
 966                         bcnmiss = (void *)(response_buf + cmd_len);
 967                         pos += snprintf(buf+pos, len-pos, "%d N/A %d\n",
 968                                         bcnmiss->beaconmissed,
 969                                         (event->events & cpu_to_le16(0x0008))?1:0);
 970                 default:
 971                         cmd_len += sizeof(struct mrvlietypes_beaconsmissed);
 972                         break;
 973                 }
 974         }
 975
 976         kfree(response_buf);
 977
 978         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 979         free_page(addr);
 980         return res;
 981 }
 982
 983 static ssize_t libertas_bcnmiss_write(struct file *file,
 984                                     const char __user *userbuf,
 985                                     size_t count, loff_t *ppos)
 986 {
 987         wlan_private *priv = file->private_data;
 988         wlan_adapter *adapter = priv->adapter;
 989         ssize_t res, buf_size;
 990         int value, freq, subscribed, cmd_len;
 991         struct cmd_ctrl_node *pcmdnode;
 992         struct cmd_ds_command *pcmdptr;
 993         struct cmd_ds_802_11_subscribe_event *event;
 994         struct mrvlietypes_beaconsmissed *bcnmiss;
 995         void *response_buf;
 996         u16 event_bitmap;
 997         u8 *ptr;
 998         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 999         char *buf = (char *)addr;
1000
1001         buf_size = min(count, len - 1);
1002         if (copy_from_user(buf, userbuf, buf_size)) {
1003                 res = -EFAULT;
1004                 goto out_unlock;
1005         }
1006         res = sscanf(buf, "%d %d %d", &value, &freq, &subscribed);
1007         if (res != 3) {
1008                 res = -EFAULT;
1009                 goto out_unlock;
1010         }
1011
1012         event_bitmap = libertas_get_events_bitmap(priv);
1013
1014         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
1015         if (res < 0)
1016                 goto out_unlock;
1017
1018         event = &pcmdptr->params.subscribe_event;
1019         event->action = cpu_to_le16(CMD_ACT_SET);
1020         pcmdptr->size = cpu_to_le16(S_DS_GEN +
1021                 sizeof(struct cmd_ds_802_11_subscribe_event) +
1022                 sizeof(struct mrvlietypes_beaconsmissed));
1023         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
1024         ptr = (u8*) pcmdptr+cmd_len;
1025         bcnmiss = (struct mrvlietypes_beaconsmissed *)(ptr);
1026         bcnmiss->header.type = cpu_to_le16(TLV_TYPE_BCNMISS);
1027         bcnmiss->header.len = cpu_to_le16(2);
1028         bcnmiss->beaconmissed = value;
1029         event_bitmap |= subscribed ? 0x0008 : 0x0;
1030         event->events = cpu_to_le16(event_bitmap);
1031
1032         libertas_queue_cmd(adapter, pcmdnode, 1);
1033         wake_up_interruptible(&priv->waitq);
1034
1035         /* Sleep until response is generated by FW */
1036         wait_event_interruptible(pcmdnode->cmdwait_q,
1037                                  pcmdnode->cmdwaitqwoken);
1038
1039         pcmdptr = response_buf;
1040
1041         if (pcmdptr->result) {
1042                 lbs_pr_err("%s: fail, result=%d\n", __func__,
1043                            le16_to_cpu(pcmdptr->result));
1044                 kfree(response_buf);
1045                 free_page(addr);
1046                 return 0;
1047         }
1048
1049         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
1050                 lbs_pr_err("command response incorrect!\n");
1051                 free_page(addr);
1052                 kfree(response_buf);
1053                 return 0;
1054         }
1055
1056         res = count;
1057 out_unlock:
1058         free_page(addr);
1059         return res;
1060 }
1061
1062 static ssize_t libertas_highrssi_read(struct file *file, char __user *userbuf,
1063                                   size_t count, loff_t *ppos)
1064 {
1065         wlan_private *priv = file->private_data;
1066         wlan_adapter *adapter = priv->adapter;
1067         struct cmd_ctrl_node *pcmdnode;
1068         struct cmd_ds_command *pcmdptr;
1069         struct cmd_ds_802_11_subscribe_event *event;
1070         void *response_buf;
1071         int res, cmd_len;
1072         ssize_t pos = 0;
1073         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1074         char *buf = (char *)addr;
1075
1076         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
1077         if (res < 0) {
1078                 free_page(addr);
1079                 return res;
1080         }
1081
1082         event = &pcmdptr->params.subscribe_event;
1083         event->action = cpu_to_le16(CMD_ACT_GET);
1084         pcmdptr->size = cpu_to_le16(sizeof(*event) + S_DS_GEN);
1085         libertas_queue_cmd(adapter, pcmdnode, 1);
1086         wake_up_interruptible(&priv->waitq);
1087
1088         /* Sleep until response is generated by FW */
1089         wait_event_interruptible(pcmdnode->cmdwait_q,
1090                                  pcmdnode->cmdwaitqwoken);
1091
1092         pcmdptr = response_buf;
1093
1094         if (pcmdptr->result) {
1095                 lbs_pr_err("%s: fail, result=%d\n", __func__,
1096                            le16_to_cpu(pcmdptr->result));
1097                 kfree(response_buf);
1098                 free_page(addr);
1099                 return 0;
1100         }
1101
1102         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
1103                 lbs_pr_err("command response incorrect!\n");
1104                 kfree(response_buf);
1105                 free_page(addr);
1106                 return 0;
1107         }
1108
1109         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
1110         event = (void *)(response_buf + S_DS_GEN);
1111         while (cmd_len < le16_to_cpu(pcmdptr->size)) {
1112                 struct mrvlietypesheader *header = (void *)(response_buf + cmd_len);
1113                 switch (header->type) {
1114                 struct mrvlietypes_rssithreshold  *Highrssi;
1115                 case __constant_cpu_to_le16(TLV_TYPE_RSSI_HIGH):
1116                         Highrssi = (void *)(response_buf + cmd_len);
1117                         pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
1118                                         Highrssi->rssivalue,
1119                                         Highrssi->rssifreq,
1120                                         (event->events & cpu_to_le16(0x0010))?1:0);
1121                 default:
1122                         cmd_len += sizeof(struct mrvlietypes_snrthreshold);
1123                         break;
1124                 }
1125         }
1126
1127         kfree(response_buf);
1128
1129         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
1130         free_page(addr);
1131         return res;
1132 }
1133
1134 static ssize_t libertas_highrssi_write(struct file *file,
1135                                     const char __user *userbuf,
1136                                     size_t count, loff_t *ppos)
1137 {
1138         wlan_private *priv = file->private_data;
1139         wlan_adapter *adapter = priv->adapter;
1140         ssize_t res, buf_size;
1141         int value, freq, subscribed, cmd_len;
1142         struct cmd_ctrl_node *pcmdnode;
1143         struct cmd_ds_command *pcmdptr;
1144         struct cmd_ds_802_11_subscribe_event *event;
1145         struct mrvlietypes_rssithreshold *rssi_threshold;
1146         void *response_buf;
1147         u16 event_bitmap;
1148         u8 *ptr;
1149         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1150         char *buf = (char *)addr;
1151
1152         buf_size = min(count, len - 1);
1153         if (copy_from_user(buf, userbuf, buf_size)) {
1154                 res = -EFAULT;
1155                 goto out_unlock;
1156         }
1157         res = sscanf(buf, "%d %d %d", &value, &freq, &subscribed);
1158         if (res != 3) {
1159                 res = -EFAULT;
1160                 goto out_unlock;
1161         }
1162
1163         event_bitmap = libertas_get_events_bitmap(priv);
1164
1165         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
1166         if (res < 0)
1167                 goto out_unlock;
1168
1169         event = &pcmdptr->params.subscribe_event;
1170         event->action = cpu_to_le16(CMD_ACT_SET);
1171         pcmdptr->size = cpu_to_le16(S_DS_GEN +
1172                 sizeof(struct cmd_ds_802_11_subscribe_event) +
1173                 sizeof(struct mrvlietypes_rssithreshold));
1174         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
1175         ptr = (u8*) pcmdptr+cmd_len;
1176         rssi_threshold = (struct mrvlietypes_rssithreshold *)(ptr);
1177         rssi_threshold->header.type = cpu_to_le16(TLV_TYPE_RSSI_HIGH);
1178         rssi_threshold->header.len = cpu_to_le16(2);
1179         rssi_threshold->rssivalue = value;
1180         rssi_threshold->rssifreq = freq;
1181         event_bitmap |= subscribed ? 0x0010 : 0x0;
1182         event->events = cpu_to_le16(event_bitmap);
1183
1184         libertas_queue_cmd(adapter, pcmdnode, 1);
1185         wake_up_interruptible(&priv->waitq);
1186
1187         /* Sleep until response is generated by FW */
1188         wait_event_interruptible(pcmdnode->cmdwait_q,
1189                                  pcmdnode->cmdwaitqwoken);
1190
1191         pcmdptr = response_buf;
1192
1193         if (pcmdptr->result) {
1194                 lbs_pr_err("%s: fail, result=%d\n", __func__,
1195                            le16_to_cpu(pcmdptr->result));
1196                 kfree(response_buf);
1197                 return 0;
1198         }
1199
1200         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
1201                 lbs_pr_err("command response incorrect!\n");
1202                 kfree(response_buf);
1203                 return 0;
1204         }
1205
1206         res = count;
1207 out_unlock:
1208         free_page(addr);
1209         return res;
1210 }
1211
1212 static ssize_t libertas_highsnr_read(struct file *file, char __user *userbuf,
1213                                   size_t count, loff_t *ppos)
1214 {
1215         wlan_private *priv = file->private_data;
1216         wlan_adapter *adapter = priv->adapter;
1217         struct cmd_ctrl_node *pcmdnode;
1218         struct cmd_ds_command *pcmdptr;
1219         struct cmd_ds_802_11_subscribe_event *event;
1220         void *response_buf;
1221         int res, cmd_len;
1222         ssize_t pos = 0;
1223         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1224         char *buf = (char *)addr;
1225
1226         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
1227         if (res < 0) {
1228                 free_page(addr);
1229                 return res;
1230         }
1231
1232         event = &pcmdptr->params.subscribe_event;
1233         event->action = cpu_to_le16(CMD_ACT_GET);
1234         pcmdptr->size = cpu_to_le16(sizeof(*event) + S_DS_GEN);
1235         libertas_queue_cmd(adapter, pcmdnode, 1);
1236         wake_up_interruptible(&priv->waitq);
1237
1238         /* Sleep until response is generated by FW */
1239         wait_event_interruptible(pcmdnode->cmdwait_q,
1240                                  pcmdnode->cmdwaitqwoken);
1241
1242         pcmdptr = response_buf;
1243
1244         if (pcmdptr->result) {
1245                 lbs_pr_err("%s: fail, result=%d\n", __func__,
1246                            le16_to_cpu(pcmdptr->result));
1247                 kfree(response_buf);
1248                 free_page(addr);
1249                 return 0;
1250         }
1251
1252         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
1253                 lbs_pr_err("command response incorrect!\n");
1254                 kfree(response_buf);
1255                 free_page(addr);
1256                 return 0;
1257         }
1258
1259         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
1260         event = (void *)(response_buf + S_DS_GEN);
1261         while (cmd_len < le16_to_cpu(pcmdptr->size)) {
1262                 struct mrvlietypesheader *header = (void *)(response_buf + cmd_len);
1263                 switch (header->type) {
1264                 struct mrvlietypes_snrthreshold *HighSnr;
1265                 case __constant_cpu_to_le16(TLV_TYPE_SNR_HIGH):
1266                         HighSnr = (void *)(response_buf + cmd_len);
1267                         pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
1268                                         HighSnr->snrvalue,
1269                                         HighSnr->snrfreq,
1270                                         (event->events & cpu_to_le16(0x0020))?1:0);
1271                 default:
1272                         cmd_len += sizeof(struct mrvlietypes_snrthreshold);
1273                         break;
1274                 }
1275         }
1276
1277         kfree(response_buf);
1278
1279         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
1280         free_page(addr);
1281         return res;
1282 }
1283
1284 static ssize_t libertas_highsnr_write(struct file *file,
1285                                     const char __user *userbuf,
1286                                     size_t count, loff_t *ppos)
1287 {
1288         wlan_private *priv = file->private_data;
1289         wlan_adapter *adapter = priv->adapter;
1290         ssize_t res, buf_size;
1291         int value, freq, subscribed, cmd_len;
1292         struct cmd_ctrl_node *pcmdnode;
1293         struct cmd_ds_command *pcmdptr;
1294         struct cmd_ds_802_11_subscribe_event *event;
1295         struct mrvlietypes_snrthreshold *snr_threshold;
1296         void *response_buf;
1297         u16 event_bitmap;
1298         u8 *ptr;
1299         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1300         char *buf = (char *)addr;
1301
1302         buf_size = min(count, len - 1);
1303         if (copy_from_user(buf, userbuf, buf_size)) {
1304                 res = -EFAULT;
1305                 goto out_unlock;
1306         }
1307         res = sscanf(buf, "%d %d %d", &value, &freq, &subscribed);
1308         if (res != 3) {
1309                 res = -EFAULT;
1310                 goto out_unlock;
1311         }
1312
1313         event_bitmap = libertas_get_events_bitmap(priv);
1314
1315         res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
1316         if (res < 0)
1317                 goto out_unlock;
1318
1319         event = &pcmdptr->params.subscribe_event;
1320         event->action = cpu_to_le16(CMD_ACT_SET);
1321         pcmdptr->size = cpu_to_le16(S_DS_GEN +
1322                 sizeof(struct cmd_ds_802_11_subscribe_event) +
1323                 sizeof(struct mrvlietypes_snrthreshold));
1324         cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
1325         ptr = (u8*) pcmdptr+cmd_len;
1326         snr_threshold = (struct mrvlietypes_snrthreshold *)(ptr);
1327         snr_threshold->header.type = cpu_to_le16(TLV_TYPE_SNR_HIGH);
1328         snr_threshold->header.len = cpu_to_le16(2);
1329         snr_threshold->snrvalue = value;
1330         snr_threshold->snrfreq = freq;
1331         event_bitmap |= subscribed ? 0x0020 : 0x0;
1332         event->events = cpu_to_le16(event_bitmap);
1333
1334         libertas_queue_cmd(adapter, pcmdnode, 1);
1335         wake_up_interruptible(&priv->waitq);
1336
1337         /* Sleep until response is generated by FW */
1338         wait_event_interruptible(pcmdnode->cmdwait_q,
1339                                  pcmdnode->cmdwaitqwoken);
1340
1341         pcmdptr = response_buf;
1342
1343         if (pcmdptr->result) {
1344                 lbs_pr_err("%s: fail, result=%d\n", __func__,
1345                            le16_to_cpu(pcmdptr->result));
1346                 kfree(response_buf);
1347                 free_page(addr);
1348                 return 0;
1349         }
1350
1351         if (pcmdptr->command != cpu_to_le16(CMD_RET(CMD_802_11_SUBSCRIBE_EVENT))) {
1352                 lbs_pr_err("command response incorrect!\n");
1353                 kfree(response_buf);
1354                 free_page(addr);
1355                 return 0;
1356         }
1357
1358         res = count;
1359 out_unlock:
1360         free_page(addr);
1361         return res;
1362 }
1363
1364 static ssize_t libertas_rdmac_read(struct file *file, char __user *userbuf,
1365                                   size_t count, loff_t *ppos)
1366 {
1367         wlan_private *priv = file->private_data;
1368         wlan_adapter *adapter = priv->adapter;
1369         struct wlan_offset_value offval;
1370         ssize_t pos = 0;
1371         int ret;
1372         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1373         char *buf = (char *)addr;
1374
1375         offval.offset = priv->mac_offset;
1376         offval.value = 0;
1377
1378         ret = libertas_prepare_and_send_command(priv,
1379                                 CMD_MAC_REG_ACCESS, 0,
1380                                 CMD_OPTION_WAITFORRSP, 0, &offval);
1381         mdelay(10);
1382         pos += snprintf(buf+pos, len-pos, "MAC[0x%x] = 0x%08x\n",
1383                                 priv->mac_offset, adapter->offsetvalue.value);
1384
1385         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
1386         free_page(addr);
1387         return ret;
1388 }
1389
1390 static ssize_t libertas_rdmac_write(struct file *file,
1391                                     const char __user *userbuf,
1392                                     size_t count, loff_t *ppos)
1393 {
1394         wlan_private *priv = file->private_data;
1395         ssize_t res, buf_size;
1396         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1397         char *buf = (char *)addr;
1398
1399         buf_size = min(count, len - 1);
1400         if (copy_from_user(buf, userbuf, buf_size)) {
1401                 res = -EFAULT;
1402                 goto out_unlock;
1403         }
1404         priv->mac_offset = simple_strtoul((char *)buf, NULL, 16);
1405         res = count;
1406 out_unlock:
1407         free_page(addr);
1408         return res;
1409 }
1410
1411 static ssize_t libertas_wrmac_write(struct file *file,
1412                                     const char __user *userbuf,
1413                                     size_t count, loff_t *ppos)
1414 {
1415
1416         wlan_private *priv = file->private_data;
1417         ssize_t res, buf_size;
1418         u32 offset, value;
1419         struct wlan_offset_value offval;
1420         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1421         char *buf = (char *)addr;
1422
1423         buf_size = min(count, len - 1);
1424         if (copy_from_user(buf, userbuf, buf_size)) {
1425                 res = -EFAULT;
1426                 goto out_unlock;
1427         }
1428         res = sscanf(buf, "%x %x", &offset, &value);
1429         if (res != 2) {
1430                 res = -EFAULT;
1431                 goto out_unlock;
1432         }
1433
1434         offval.offset = offset;
1435         offval.value = value;
1436         res = libertas_prepare_and_send_command(priv,
1437                                 CMD_MAC_REG_ACCESS, 1,
1438                                 CMD_OPTION_WAITFORRSP, 0, &offval);
1439         mdelay(10);
1440
1441         res = count;
1442 out_unlock:
1443         free_page(addr);
1444         return res;
1445 }
1446
1447 static ssize_t libertas_rdbbp_read(struct file *file, char __user *userbuf,
1448                                   size_t count, loff_t *ppos)
1449 {
1450         wlan_private *priv = file->private_data;
1451         wlan_adapter *adapter = priv->adapter;
1452         struct wlan_offset_value offval;
1453         ssize_t pos = 0;
1454         int ret;
1455         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1456         char *buf = (char *)addr;
1457
1458         offval.offset = priv->bbp_offset;
1459         offval.value = 0;
1460
1461         ret = libertas_prepare_and_send_command(priv,
1462                                 CMD_BBP_REG_ACCESS, 0,
1463                                 CMD_OPTION_WAITFORRSP, 0, &offval);
1464         mdelay(10);
1465         pos += snprintf(buf+pos, len-pos, "BBP[0x%x] = 0x%08x\n",
1466                                 priv->bbp_offset, adapter->offsetvalue.value);
1467
1468         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
1469         free_page(addr);
1470
1471         return ret;
1472 }
1473
1474 static ssize_t libertas_rdbbp_write(struct file *file,
1475                                     const char __user *userbuf,
1476                                     size_t count, loff_t *ppos)
1477 {
1478         wlan_private *priv = file->private_data;
1479         ssize_t res, buf_size;
1480         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1481         char *buf = (char *)addr;
1482
1483         buf_size = min(count, len - 1);
1484         if (copy_from_user(buf, userbuf, buf_size)) {
1485                 res = -EFAULT;
1486                 goto out_unlock;
1487         }
1488         priv->bbp_offset = simple_strtoul((char *)buf, NULL, 16);
1489         res = count;
1490 out_unlock:
1491         free_page(addr);
1492         return res;
1493 }
1494
1495 static ssize_t libertas_wrbbp_write(struct file *file,
1496                                     const char __user *userbuf,
1497                                     size_t count, loff_t *ppos)
1498 {
1499
1500         wlan_private *priv = file->private_data;
1501         ssize_t res, buf_size;
1502         u32 offset, value;
1503         struct wlan_offset_value offval;
1504         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1505         char *buf = (char *)addr;
1506
1507         buf_size = min(count, len - 1);
1508         if (copy_from_user(buf, userbuf, buf_size)) {
1509                 res = -EFAULT;
1510                 goto out_unlock;
1511         }
1512         res = sscanf(buf, "%x %x", &offset, &value);
1513         if (res != 2) {
1514                 res = -EFAULT;
1515                 goto out_unlock;
1516         }
1517
1518         offval.offset = offset;
1519         offval.value = value;
1520         res = libertas_prepare_and_send_command(priv,
1521                                 CMD_BBP_REG_ACCESS, 1,
1522                                 CMD_OPTION_WAITFORRSP, 0, &offval);
1523         mdelay(10);
1524
1525         res = count;
1526 out_unlock:
1527         free_page(addr);
1528         return res;
1529 }
1530
1531 static ssize_t libertas_rdrf_read(struct file *file, char __user *userbuf,
1532                                   size_t count, loff_t *ppos)
1533 {
1534         wlan_private *priv = file->private_data;
1535         wlan_adapter *adapter = priv->adapter;
1536         struct wlan_offset_value offval;
1537         ssize_t pos = 0;
1538         int ret;
1539         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1540         char *buf = (char *)addr;
1541
1542         offval.offset = priv->rf_offset;
1543         offval.value = 0;
1544
1545         ret = libertas_prepare_and_send_command(priv,
1546                                 CMD_RF_REG_ACCESS, 0,
1547                                 CMD_OPTION_WAITFORRSP, 0, &offval);
1548         mdelay(10);
1549         pos += snprintf(buf+pos, len-pos, "RF[0x%x] = 0x%08x\n",
1550                                 priv->rf_offset, adapter->offsetvalue.value);
1551
1552         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
1553         free_page(addr);
1554
1555         return ret;
1556 }
1557
1558 static ssize_t libertas_rdrf_write(struct file *file,
1559                                     const char __user *userbuf,
1560                                     size_t count, loff_t *ppos)
1561 {
1562         wlan_private *priv = file->private_data;
1563         ssize_t res, buf_size;
1564         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1565         char *buf = (char *)addr;
1566
1567         buf_size = min(count, len - 1);
1568         if (copy_from_user(buf, userbuf, buf_size)) {
1569                 res = -EFAULT;
1570                 goto out_unlock;
1571         }
1572         priv->rf_offset = simple_strtoul((char *)buf, NULL, 16);
1573         res = count;
1574 out_unlock:
1575         free_page(addr);
1576         return res;
1577 }
1578
1579 static ssize_t libertas_wrrf_write(struct file *file,
1580                                     const char __user *userbuf,
1581                                     size_t count, loff_t *ppos)
1582 {
1583
1584         wlan_private *priv = file->private_data;
1585         ssize_t res, buf_size;
1586         u32 offset, value;
1587         struct wlan_offset_value offval;
1588         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1589         char *buf = (char *)addr;
1590
1591         buf_size = min(count, len - 1);
1592         if (copy_from_user(buf, userbuf, buf_size)) {
1593                 res = -EFAULT;
1594                 goto out_unlock;
1595         }
1596         res = sscanf(buf, "%x %x", &offset, &value);
1597         if (res != 2) {
1598                 res = -EFAULT;
1599                 goto out_unlock;
1600         }
1601
1602         offval.offset = offset;
1603         offval.value = value;
1604         res = libertas_prepare_and_send_command(priv,
1605                                 CMD_RF_REG_ACCESS, 1,
1606                                 CMD_OPTION_WAITFORRSP, 0, &offval);
1607         mdelay(10);
1608
1609         res = count;
1610 out_unlock:
1611         free_page(addr);
1612         return res;
1613 }
1614
1615 #define FOPS(fread, fwrite) { \
1616         .owner = THIS_MODULE, \
1617         .open = open_file_generic, \
1618         .read = (fread), \
1619         .write = (fwrite), \
1620 }
1621
1622 struct libertas_debugfs_files {
1623         char *name;
1624         int perm;
1625         struct file_operations fops;
1626 };
1627
1628 static struct libertas_debugfs_files debugfs_files[] = {
1629         { "info", 0444, FOPS(libertas_dev_info, write_file_dummy), },
1630         { "getscantable", 0444, FOPS(libertas_getscantable,
1631                                         write_file_dummy), },
1632         { "sleepparams", 0644, FOPS(libertas_sleepparams_read,
1633                                 libertas_sleepparams_write), },
1634         { "extscan", 0600, FOPS(NULL, libertas_extscan), },
1635         { "setuserscan", 0600, FOPS(NULL, libertas_setuserscan), },
1636 };
1637
1638 static struct libertas_debugfs_files debugfs_events_files[] = {
1639         {"low_rssi", 0644, FOPS(libertas_lowrssi_read,
1640                                 libertas_lowrssi_write), },
1641         {"low_snr", 0644, FOPS(libertas_lowsnr_read,
1642                                 libertas_lowsnr_write), },
1643         {"failure_count", 0644, FOPS(libertas_failcount_read,
1644                                 libertas_failcount_write), },
1645         {"beacon_missed", 0644, FOPS(libertas_bcnmiss_read,
1646                                 libertas_bcnmiss_write), },
1647         {"high_rssi", 0644, FOPS(libertas_highrssi_read,
1648                                 libertas_highrssi_write), },
1649         {"high_snr", 0644, FOPS(libertas_highsnr_read,
1650                                 libertas_highsnr_write), },
1651 };
1652
1653 static struct libertas_debugfs_files debugfs_regs_files[] = {
1654         {"rdmac", 0644, FOPS(libertas_rdmac_read, libertas_rdmac_write), },
1655         {"wrmac", 0600, FOPS(NULL, libertas_wrmac_write), },
1656         {"rdbbp", 0644, FOPS(libertas_rdbbp_read, libertas_rdbbp_write), },
1657         {"wrbbp", 0600, FOPS(NULL, libertas_wrbbp_write), },
1658         {"rdrf", 0644, FOPS(libertas_rdrf_read, libertas_rdrf_write), },
1659         {"wrrf", 0600, FOPS(NULL, libertas_wrrf_write), },
1660 };
1661
1662 void libertas_debugfs_init(void)
1663 {
1664         if (!libertas_dir)
1665                 libertas_dir = debugfs_create_dir("libertas_wireless", NULL);
1666
1667         return;
1668 }
1669
1670 void libertas_debugfs_remove(void)
1671 {
1672         if (libertas_dir)
1673                  debugfs_remove(libertas_dir);
1674         return;
1675 }
1676
1677 void libertas_debugfs_init_one(wlan_private *priv, struct net_device *dev)
1678 {
1679         int i;
1680         struct libertas_debugfs_files *files;
1681         if (!libertas_dir)
1682                 goto exit;
1683
1684         priv->debugfs_dir = debugfs_create_dir(dev->name, libertas_dir);
1685         if (!priv->debugfs_dir)
1686                 goto exit;
1687
1688         for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
1689                 files = &debugfs_files[i];
1690                 priv->debugfs_files[i] = debugfs_create_file(files->name,
1691                                                              files->perm,
1692                                                              priv->debugfs_dir,
1693                                                              priv,
1694                                                              &files->fops);
1695         }
1696
1697         priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
1698         if (!priv->events_dir)
1699                 goto exit;
1700
1701         for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
1702                 files = &debugfs_events_files[i];
1703                 priv->debugfs_events_files[i] = debugfs_create_file(files->name,
1704                                                              files->perm,
1705                                                              priv->events_dir,
1706                                                              priv,
1707                                                              &files->fops);
1708         }
1709
1710         priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
1711         if (!priv->regs_dir)
1712                 goto exit;
1713
1714         for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
1715                 files = &debugfs_regs_files[i];
1716                 priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
1717                                                              files->perm,
1718                                                              priv->regs_dir,
1719                                                              priv,
1720                                                              &files->fops);
1721         }
1722
1723 #ifdef PROC_DEBUG
1724         libertas_debug_init(priv, dev);
1725 #endif
1726 exit:
1727         return;
1728 }
1729
1730 void libertas_debugfs_remove_one(wlan_private *priv)
1731 {
1732         int i;
1733
1734         for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
1735                 debugfs_remove(priv->debugfs_regs_files[i]);
1736
1737         debugfs_remove(priv->regs_dir);
1738
1739         for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
1740                 debugfs_remove(priv->debugfs_events_files[i]);
1741
1742         debugfs_remove(priv->events_dir);
1743 #ifdef PROC_DEBUG
1744         debugfs_remove(priv->debugfs_debug);
1745 #endif
1746         for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
1747                 debugfs_remove(priv->debugfs_files[i]);
1748         debugfs_remove(priv->debugfs_dir);
1749 }
1750
1751
1752
1753 /* debug entry */
1754
1755 #ifdef PROC_DEBUG
1756
1757 #define item_size(n)    (FIELD_SIZEOF(wlan_adapter, n))
1758 #define item_addr(n)    (offsetof(wlan_adapter, n))
1759
1760
1761 struct debug_data {
1762         char name[32];
1763         u32 size;
1764         size_t addr;
1765 };
1766
1767 /* To debug any member of wlan_adapter, simply add one line here.
1768  */
1769 static struct debug_data items[] = {
1770         {"intcounter", item_size(intcounter), item_addr(intcounter)},
1771         {"psmode", item_size(psmode), item_addr(psmode)},
1772         {"psstate", item_size(psstate), item_addr(psstate)},
1773 };
1774
1775 static int num_of_items = ARRAY_SIZE(items);
1776
1777 /**
1778  *  @brief proc read function
1779  *
1780  *  @param page    pointer to buffer
1781  *  @param s       read data starting position
1782  *  @param off     offset
1783  *  @param cnt     counter
1784  *  @param eof     end of file flag
1785  *  @param data    data to output
1786  *  @return        number of output data
1787  */
1788 static ssize_t wlan_debugfs_read(struct file *file, char __user *userbuf,
1789                         size_t count, loff_t *ppos)
1790 {
1791         int val = 0;
1792         size_t pos = 0;
1793         ssize_t res;
1794         char *p;
1795         int i;
1796         struct debug_data *d;
1797         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1798         char *buf = (char *)addr;
1799
1800         p = buf;
1801
1802         d = (struct debug_data *)file->private_data;
1803
1804         for (i = 0; i < num_of_items; i++) {
1805                 if (d[i].size == 1)
1806                         val = *((u8 *) d[i].addr);
1807                 else if (d[i].size == 2)
1808                         val = *((u16 *) d[i].addr);
1809                 else if (d[i].size == 4)
1810                         val = *((u32 *) d[i].addr);
1811                 else if (d[i].size == 8)
1812                         val = *((u64 *) d[i].addr);
1813
1814                 pos += sprintf(p + pos, "%s=%d\n", d[i].name, val);
1815         }
1816
1817         res = simple_read_from_buffer(userbuf, count, ppos, p, pos);
1818
1819         free_page(addr);
1820         return res;
1821 }
1822
1823 /**
1824  *  @brief proc write function
1825  *
1826  *  @param f       file pointer
1827  *  @param buf     pointer to data buffer
1828  *  @param cnt     data number to write
1829  *  @param data    data to write
1830  *  @return        number of data
1831  */
1832 static ssize_t wlan_debugfs_write(struct file *f, const char __user *buf,
1833                             size_t cnt, loff_t *ppos)
1834 {
1835         int r, i;
1836         char *pdata;
1837         char *p;
1838         char *p0;
1839         char *p1;
1840         char *p2;
1841         struct debug_data *d = (struct debug_data *)f->private_data;
1842
1843         pdata = kmalloc(cnt, GFP_KERNEL);
1844         if (pdata == NULL)
1845                 return 0;
1846
1847         if (copy_from_user(pdata, buf, cnt)) {
1848                 lbs_deb_debugfs("Copy from user failed\n");
1849                 kfree(pdata);
1850                 return 0;
1851         }
1852
1853         p0 = pdata;
1854         for (i = 0; i < num_of_items; i++) {
1855                 do {
1856                         p = strstr(p0, d[i].name);
1857                         if (p == NULL)
1858                                 break;
1859                         p1 = strchr(p, '\n');
1860                         if (p1 == NULL)
1861                                 break;
1862                         p0 = p1++;
1863                         p2 = strchr(p, '=');
1864                         if (!p2)
1865                                 break;
1866                         p2++;
1867                         r = simple_strtoul(p2, NULL, 0);
1868                         if (d[i].size == 1)
1869                                 *((u8 *) d[i].addr) = (u8) r;
1870                         else if (d[i].size == 2)
1871                                 *((u16 *) d[i].addr) = (u16) r;
1872                         else if (d[i].size == 4)
1873                                 *((u32 *) d[i].addr) = (u32) r;
1874                         else if (d[i].size == 8)
1875                                 *((u64 *) d[i].addr) = (u64) r;
1876                         break;
1877                 } while (1);
1878         }
1879         kfree(pdata);
1880
1881         return (ssize_t)cnt;
1882 }
1883
1884 static struct file_operations libertas_debug_fops = {
1885         .owner = THIS_MODULE,
1886         .open = open_file_generic,
1887         .write = wlan_debugfs_write,
1888         .read = wlan_debugfs_read,
1889 };
1890
1891 /**
1892  *  @brief create debug proc file
1893  *
1894  *  @param priv    pointer wlan_private
1895  *  @param dev     pointer net_device
1896  *  @return        N/A
1897  */
1898 static void libertas_debug_init(wlan_private * priv, struct net_device *dev)
1899 {
1900         int i;
1901
1902         if (!priv->debugfs_dir)
1903                 return;
1904
1905         for (i = 0; i < num_of_items; i++)
1906                 items[i].addr += (size_t) priv->adapter;
1907
1908         priv->debugfs_debug = debugfs_create_file("debug", 0644,
1909                                                   priv->debugfs_dir, &items[0],
1910                                                   &libertas_debug_fops);
1911 }
1912 #endif
1913