SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 *lbs_dir;
  15 static char *szStates[] = {
  16         "Connected",
  17         "Disconnected"
  18 };
  19
  20 #ifdef PROC_DEBUG
  21 static void lbs_debug_init(struct lbs_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 lbs_dev_info(struct file *file, char __user *userbuf,
  39                                   size_t count, loff_t *ppos)
  40 {
  41         struct lbs_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 lbs_getscantable(struct file *file, char __user *userbuf,
  60                                   size_t count, loff_t *ppos)
  61 {
  62         struct lbs_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 lbs_sleepparams_write(struct file *file,
 102                                 const char __user *user_buf, size_t count,
 103                                 loff_t *ppos)
 104 {
 105         struct lbs_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 = lbs_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 lbs_sleepparams_read(struct file *file, char __user *userbuf,
 144                                   size_t count, loff_t *ppos)
 145 {
 146         struct lbs_private *priv = file->private_data;
 147         struct lbs_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 = lbs_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 lbs_extscan(struct file *file, const char __user *userbuf,
 175                                   size_t count, loff_t *ppos)
 176 {
 177         struct lbs_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         lbs_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 void lbs_parse_bssid(char *buf, size_t count,
 200         struct lbs_ioctl_user_scan_cfg *scan_cfg)
 201 {
 202         char *hold;
 203         unsigned int mac[ETH_ALEN];
 204
 205         hold = strstr(buf, "bssid=");
 206         if (!hold)
 207                 return;
 208         hold += 6;
 209         sscanf(hold, "%02x:%02x:%02x:%02x:%02x:%02x",
 210                mac, mac+1, mac+2, mac+3, mac+4, mac+5);
 211         memcpy(scan_cfg->bssid, mac, ETH_ALEN);
 212 }
 213
 214 static void lbs_parse_ssid(char *buf, size_t count,
 215         struct lbs_ioctl_user_scan_cfg *scan_cfg)
 216 {
 217         char *hold, *end;
 218         ssize_t size;
 219
 220         hold = strstr(buf, "ssid=");
 221         if (!hold)
 222                 return;
 223         hold += 5;
 224         end = strchr(hold, ' ');
 225         if (!end)
 226                 end = buf + count - 1;
 227
 228         size = min((size_t)IW_ESSID_MAX_SIZE, (size_t) (end - hold));
 229         strncpy(scan_cfg->ssid, hold, size);
 230
 231         return;
 232 }
 233
 234 static int lbs_parse_clear(char *buf, size_t count, const char *tag)
 235 {
 236         char *hold;
 237         int val;
 238
 239         hold = strstr(buf, tag);
 240         if (!hold)
 241                 return 0;
 242         hold += strlen(tag);
 243         sscanf(hold, "%d", &val);
 244
 245         if (val != 0)
 246                 val = 1;
 247
 248         return val;
 249 }
 250
 251 static int lbs_parse_dur(char *buf, size_t count,
 252         struct lbs_ioctl_user_scan_cfg *scan_cfg)
 253 {
 254         char *hold;
 255         int val;
 256
 257         hold = strstr(buf, "dur=");
 258         if (!hold)
 259                 return 0;
 260         hold += 4;
 261         sscanf(hold, "%d", &val);
 262
 263         return val;
 264 }
 265
 266 static void lbs_parse_type(char *buf, size_t count,
 267         struct lbs_ioctl_user_scan_cfg *scan_cfg)
 268 {
 269         char *hold;
 270         int val;
 271
 272         hold = strstr(buf, "type=");
 273         if (!hold)
 274                 return;
 275         hold += 5;
 276         sscanf(hold, "%d", &val);
 277
 278         /* type=1,2 or 3 */
 279         if (val < 1 || val > 3)
 280                 return;
 281
 282         scan_cfg->bsstype = val;
 283
 284         return;
 285 }
 286
 287 static ssize_t lbs_setuserscan(struct file *file,
 288                                     const char __user *userbuf,
 289                                     size_t count, loff_t *ppos)
 290 {
 291         struct lbs_private *priv = file->private_data;
 292         ssize_t res, buf_size;
 293         struct lbs_ioctl_user_scan_cfg *scan_cfg;
 294         union iwreq_data wrqu;
 295         int dur;
 296         char *buf = (char *)get_zeroed_page(GFP_KERNEL);
 297
 298         if (!buf)
 299                 return -ENOMEM;
 300
 301         buf_size = min(count, len - 1);
 302         if (copy_from_user(buf, userbuf, buf_size)) {
 303                 res = -EFAULT;
 304                 goto out_buf;
 305         }
 306
 307         scan_cfg = kzalloc(sizeof(struct lbs_ioctl_user_scan_cfg), GFP_KERNEL);
 308         if (!scan_cfg) {
 309                 res = -ENOMEM;
 310                 goto out_buf;
 311         }
 312         res = count;
 313
 314         scan_cfg->bsstype = LBS_SCAN_BSS_TYPE_ANY;
 315
 316         dur = lbs_parse_dur(buf, count, scan_cfg);
 317         lbs_parse_bssid(buf, count, scan_cfg);
 318         scan_cfg->clear_bssid = lbs_parse_clear(buf, count, "clear_bssid=");
 319         lbs_parse_ssid(buf, count, scan_cfg);
 320         scan_cfg->clear_ssid = lbs_parse_clear(buf, count, "clear_ssid=");
 321         lbs_parse_type(buf, count, scan_cfg);
 322
 323         lbs_scan_networks(priv, scan_cfg, 1);
 324         wait_event_interruptible(priv->adapter->cmd_pending,
 325                                  priv->adapter->surpriseremoved || !priv->adapter->nr_cmd_pending);
 326
 327         if (priv->adapter->surpriseremoved)
 328                 goto out_scan_cfg;
 329
 330         memset(&wrqu, 0x00, sizeof(union iwreq_data));
 331         wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
 332
 333  out_scan_cfg:
 334         kfree(scan_cfg);
 335  out_buf:
 336         free_page((unsigned long)buf);
 337         return res;
 338 }
 339
 340
 341 /*
 342  * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
 343  * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
 344  * firmware. Here's an example:
 345  *      04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
 346  *      00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
 347  *      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 348  *
 349  * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
 350  * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
 351  * defined in mrvlietypes_thresholds
 352  *
 353  * This function searches in this TLV data chunk for a given TLV type
 354  * and returns a pointer to the first data byte of the TLV, or to NULL
 355  * if the TLV hasn't been found.
 356  */
 357 static void *lbs_tlv_find(u16 tlv_type, const u8 *tlv, u16 size)
 358 {
 359         __le16 le_type = cpu_to_le16(tlv_type);
 360         ssize_t pos = 0;
 361         struct mrvlietypesheader *tlv_h;
 362         while (pos < size) {
 363                 u16 length;
 364                 tlv_h = (struct mrvlietypesheader *) tlv;
 365                 if (tlv_h->type == le_type)
 366                         return tlv_h;
 367                 if (tlv_h->len == 0)
 368                         return NULL;
 369                 length = le16_to_cpu(tlv_h->len) +
 370                         sizeof(struct mrvlietypesheader);
 371                 pos += length;
 372                 tlv += length;
 373         }
 374         return NULL;
 375 }
 376
 377
 378 /*
 379  * This just gets the bitmap of currently subscribed events. Used when
 380  * adding an additonal event subscription.
 381  */
 382 static u16 lbs_get_events_bitmap(struct lbs_private *priv)
 383 {
 384         ssize_t res;
 385
 386         struct cmd_ds_802_11_subscribe_event *events = kzalloc(
 387                 sizeof(struct cmd_ds_802_11_subscribe_event),
 388                 GFP_KERNEL);
 389
 390         res = lbs_prepare_and_send_command(priv,
 391                         CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_GET,
 392                         CMD_OPTION_WAITFORRSP, 0, events);
 393
 394         if (res) {
 395                 kfree(events);
 396                 return 0;
 397         }
 398         return le16_to_cpu(events->events);
 399 }
 400
 401
 402 static ssize_t lbs_threshold_read(
 403         u16 tlv_type, u16 event_mask,
 404         struct file *file, char __user *userbuf,
 405         size_t count, loff_t *ppos)
 406 {
 407         struct lbs_private *priv = file->private_data;
 408         ssize_t res = 0;
 409         size_t pos = 0;
 410         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 411         char *buf = (char *)addr;
 412         u8 value;
 413         u8 freq;
 414
 415         struct cmd_ds_802_11_subscribe_event *events = kzalloc(
 416                 sizeof(struct cmd_ds_802_11_subscribe_event),
 417                 GFP_KERNEL);
 418         struct mrvlietypes_thresholds *got;
 419
 420         res = lbs_prepare_and_send_command(priv,
 421                         CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_GET,
 422                         CMD_OPTION_WAITFORRSP, 0, events);
 423         if (res) {
 424                 kfree(events);
 425                 return res;
 426         }
 427
 428         got = lbs_tlv_find(tlv_type, events->tlv, sizeof(events->tlv));
 429         if (got) {
 430                 value = got->value;
 431                 freq  = got->freq;
 432         }
 433         kfree(events);
 434
 435         if (got)
 436                 pos += snprintf(buf, len, "%d %d %d\n", value, freq,
 437                         !!(le16_to_cpu(events->events) & event_mask));
 438
 439         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 440
 441         free_page(addr);
 442         return res;
 443 }
 444
 445
 446 static ssize_t lbs_threshold_write(
 447         u16 tlv_type, u16 event_mask,
 448         struct file *file,
 449         const char __user *userbuf,
 450         size_t count, loff_t *ppos)
 451 {
 452         struct lbs_private *priv = file->private_data;
 453         ssize_t res, buf_size;
 454         int value, freq, curr_mask, new_mask;
 455         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 456         char *buf = (char *)addr;
 457         struct cmd_ds_802_11_subscribe_event *events;
 458
 459         buf_size = min(count, len - 1);
 460         if (copy_from_user(buf, userbuf, buf_size)) {
 461                 res = -EFAULT;
 462                 goto out_unlock;
 463         }
 464         res = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
 465         if (res != 3) {
 466                 res = -EFAULT;
 467                 goto out_unlock;
 468         }
 469         curr_mask = lbs_get_events_bitmap(priv);
 470
 471         if (new_mask)
 472                 new_mask = curr_mask | event_mask;
 473         else
 474                 new_mask = curr_mask & ~event_mask;
 475
 476         /* Now everything is set and we can send stuff down to the firmware */
 477         events = kzalloc(
 478                 sizeof(struct cmd_ds_802_11_subscribe_event),
 479                 GFP_KERNEL);
 480         if (events) {
 481                 struct mrvlietypes_thresholds *tlv =
 482                         (struct mrvlietypes_thresholds *) events->tlv;
 483                 events->action = cpu_to_le16(CMD_ACT_SET);
 484                 events->events = cpu_to_le16(new_mask);
 485                 tlv->header.type = cpu_to_le16(tlv_type);
 486                 tlv->header.len = cpu_to_le16(
 487                         sizeof(struct mrvlietypes_thresholds) -
 488                         sizeof(struct mrvlietypesheader));
 489                 tlv->value = value;
 490                 if (tlv_type != TLV_TYPE_BCNMISS)
 491                         tlv->freq = freq;
 492                 lbs_prepare_and_send_command(priv,
 493                         CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_SET,
 494                         CMD_OPTION_WAITFORRSP, 0, events);
 495                 kfree(events);
 496         }
 497
 498         res = count;
 499 out_unlock:
 500         free_page(addr);
 501         return res;
 502 }
 503
 504
 505 static ssize_t lbs_lowrssi_read(
 506         struct file *file, char __user *userbuf,
 507         size_t count, loff_t *ppos)
 508 {
 509         return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
 510                 file, userbuf, count, ppos);
 511 }
 512
 513
 514 static ssize_t lbs_lowrssi_write(
 515         struct file *file, const char __user *userbuf,
 516         size_t count, loff_t *ppos)
 517 {
 518         return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
 519                 file, userbuf, count, ppos);
 520 }
 521
 522
 523 static ssize_t lbs_lowsnr_read(
 524         struct file *file, char __user *userbuf,
 525         size_t count, loff_t *ppos)
 526 {
 527         return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
 528                 file, userbuf, count, ppos);
 529 }
 530
 531
 532 static ssize_t lbs_lowsnr_write(
 533         struct file *file, const char __user *userbuf,
 534         size_t count, loff_t *ppos)
 535 {
 536         return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
 537                 file, userbuf, count, ppos);
 538 }
 539
 540
 541 static ssize_t lbs_failcount_read(
 542         struct file *file, char __user *userbuf,
 543         size_t count, loff_t *ppos)
 544 {
 545         return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
 546                 file, userbuf, count, ppos);
 547 }
 548
 549
 550 static ssize_t lbs_failcount_write(
 551         struct file *file, const char __user *userbuf,
 552         size_t count, loff_t *ppos)
 553 {
 554         return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
 555                 file, userbuf, count, ppos);
 556 }
 557
 558
 559 static ssize_t lbs_highrssi_read(
 560         struct file *file, char __user *userbuf,
 561         size_t count, loff_t *ppos)
 562 {
 563         return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
 564                 file, userbuf, count, ppos);
 565 }
 566
 567
 568 static ssize_t lbs_highrssi_write(
 569         struct file *file, const char __user *userbuf,
 570         size_t count, loff_t *ppos)
 571 {
 572         return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
 573                 file, userbuf, count, ppos);
 574 }
 575
 576
 577 static ssize_t lbs_highsnr_read(
 578         struct file *file, char __user *userbuf,
 579         size_t count, loff_t *ppos)
 580 {
 581         return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
 582                 file, userbuf, count, ppos);
 583 }
 584
 585
 586 static ssize_t lbs_highsnr_write(
 587         struct file *file, const char __user *userbuf,
 588         size_t count, loff_t *ppos)
 589 {
 590         return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
 591                 file, userbuf, count, ppos);
 592 }
 593
 594 static ssize_t lbs_bcnmiss_read(
 595         struct file *file, char __user *userbuf,
 596         size_t count, loff_t *ppos)
 597 {
 598         return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
 599                 file, userbuf, count, ppos);
 600 }
 601
 602
 603 static ssize_t lbs_bcnmiss_write(
 604         struct file *file, const char __user *userbuf,
 605         size_t count, loff_t *ppos)
 606 {
 607         return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
 608                 file, userbuf, count, ppos);
 609 }
 610
 611
 612
 613
 614
 615
 616
 617
 618 static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
 619                                   size_t count, loff_t *ppos)
 620 {
 621         struct lbs_private *priv = file->private_data;
 622         struct lbs_adapter *adapter = priv->adapter;
 623         struct lbs_offset_value offval;
 624         ssize_t pos = 0;
 625         int ret;
 626         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 627         char *buf = (char *)addr;
 628
 629         offval.offset = priv->mac_offset;
 630         offval.value = 0;
 631
 632         ret = lbs_prepare_and_send_command(priv,
 633                                 CMD_MAC_REG_ACCESS, 0,
 634                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 635         mdelay(10);
 636         pos += snprintf(buf+pos, len-pos, "MAC[0x%x] = 0x%08x\n",
 637                                 priv->mac_offset, adapter->offsetvalue.value);
 638
 639         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 640         free_page(addr);
 641         return ret;
 642 }
 643
 644 static ssize_t lbs_rdmac_write(struct file *file,
 645                                     const char __user *userbuf,
 646                                     size_t count, loff_t *ppos)
 647 {
 648         struct lbs_private *priv = file->private_data;
 649         ssize_t res, buf_size;
 650         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 651         char *buf = (char *)addr;
 652
 653         buf_size = min(count, len - 1);
 654         if (copy_from_user(buf, userbuf, buf_size)) {
 655                 res = -EFAULT;
 656                 goto out_unlock;
 657         }
 658         priv->mac_offset = simple_strtoul((char *)buf, NULL, 16);
 659         res = count;
 660 out_unlock:
 661         free_page(addr);
 662         return res;
 663 }
 664
 665 static ssize_t lbs_wrmac_write(struct file *file,
 666                                     const char __user *userbuf,
 667                                     size_t count, loff_t *ppos)
 668 {
 669
 670         struct lbs_private *priv = file->private_data;
 671         ssize_t res, buf_size;
 672         u32 offset, value;
 673         struct lbs_offset_value offval;
 674         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 675         char *buf = (char *)addr;
 676
 677         buf_size = min(count, len - 1);
 678         if (copy_from_user(buf, userbuf, buf_size)) {
 679                 res = -EFAULT;
 680                 goto out_unlock;
 681         }
 682         res = sscanf(buf, "%x %x", &offset, &value);
 683         if (res != 2) {
 684                 res = -EFAULT;
 685                 goto out_unlock;
 686         }
 687
 688         offval.offset = offset;
 689         offval.value = value;
 690         res = lbs_prepare_and_send_command(priv,
 691                                 CMD_MAC_REG_ACCESS, 1,
 692                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 693         mdelay(10);
 694
 695         res = count;
 696 out_unlock:
 697         free_page(addr);
 698         return res;
 699 }
 700
 701 static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
 702                                   size_t count, loff_t *ppos)
 703 {
 704         struct lbs_private *priv = file->private_data;
 705         struct lbs_adapter *adapter = priv->adapter;
 706         struct lbs_offset_value offval;
 707         ssize_t pos = 0;
 708         int ret;
 709         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 710         char *buf = (char *)addr;
 711
 712         offval.offset = priv->bbp_offset;
 713         offval.value = 0;
 714
 715         ret = lbs_prepare_and_send_command(priv,
 716                                 CMD_BBP_REG_ACCESS, 0,
 717                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 718         mdelay(10);
 719         pos += snprintf(buf+pos, len-pos, "BBP[0x%x] = 0x%08x\n",
 720                                 priv->bbp_offset, adapter->offsetvalue.value);
 721
 722         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 723         free_page(addr);
 724
 725         return ret;
 726 }
 727
 728 static ssize_t lbs_rdbbp_write(struct file *file,
 729                                     const char __user *userbuf,
 730                                     size_t count, loff_t *ppos)
 731 {
 732         struct lbs_private *priv = file->private_data;
 733         ssize_t res, buf_size;
 734         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 735         char *buf = (char *)addr;
 736
 737         buf_size = min(count, len - 1);
 738         if (copy_from_user(buf, userbuf, buf_size)) {
 739                 res = -EFAULT;
 740                 goto out_unlock;
 741         }
 742         priv->bbp_offset = simple_strtoul((char *)buf, NULL, 16);
 743         res = count;
 744 out_unlock:
 745         free_page(addr);
 746         return res;
 747 }
 748
 749 static ssize_t lbs_wrbbp_write(struct file *file,
 750                                     const char __user *userbuf,
 751                                     size_t count, loff_t *ppos)
 752 {
 753
 754         struct lbs_private *priv = file->private_data;
 755         ssize_t res, buf_size;
 756         u32 offset, value;
 757         struct lbs_offset_value offval;
 758         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 759         char *buf = (char *)addr;
 760
 761         buf_size = min(count, len - 1);
 762         if (copy_from_user(buf, userbuf, buf_size)) {
 763                 res = -EFAULT;
 764                 goto out_unlock;
 765         }
 766         res = sscanf(buf, "%x %x", &offset, &value);
 767         if (res != 2) {
 768                 res = -EFAULT;
 769                 goto out_unlock;
 770         }
 771
 772         offval.offset = offset;
 773         offval.value = value;
 774         res = lbs_prepare_and_send_command(priv,
 775                                 CMD_BBP_REG_ACCESS, 1,
 776                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 777         mdelay(10);
 778
 779         res = count;
 780 out_unlock:
 781         free_page(addr);
 782         return res;
 783 }
 784
 785 static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
 786                                   size_t count, loff_t *ppos)
 787 {
 788         struct lbs_private *priv = file->private_data;
 789         struct lbs_adapter *adapter = priv->adapter;
 790         struct lbs_offset_value offval;
 791         ssize_t pos = 0;
 792         int ret;
 793         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 794         char *buf = (char *)addr;
 795
 796         offval.offset = priv->rf_offset;
 797         offval.value = 0;
 798
 799         ret = lbs_prepare_and_send_command(priv,
 800                                 CMD_RF_REG_ACCESS, 0,
 801                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 802         mdelay(10);
 803         pos += snprintf(buf+pos, len-pos, "RF[0x%x] = 0x%08x\n",
 804                                 priv->rf_offset, adapter->offsetvalue.value);
 805
 806         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 807         free_page(addr);
 808
 809         return ret;
 810 }
 811
 812 static ssize_t lbs_rdrf_write(struct file *file,
 813                                     const char __user *userbuf,
 814                                     size_t count, loff_t *ppos)
 815 {
 816         struct lbs_private *priv = file->private_data;
 817         ssize_t res, buf_size;
 818         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 819         char *buf = (char *)addr;
 820
 821         buf_size = min(count, len - 1);
 822         if (copy_from_user(buf, userbuf, buf_size)) {
 823                 res = -EFAULT;
 824                 goto out_unlock;
 825         }
 826         priv->rf_offset = simple_strtoul((char *)buf, NULL, 16);
 827         res = count;
 828 out_unlock:
 829         free_page(addr);
 830         return res;
 831 }
 832
 833 static ssize_t lbs_wrrf_write(struct file *file,
 834                                     const char __user *userbuf,
 835                                     size_t count, loff_t *ppos)
 836 {
 837
 838         struct lbs_private *priv = file->private_data;
 839         ssize_t res, buf_size;
 840         u32 offset, value;
 841         struct lbs_offset_value offval;
 842         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 843         char *buf = (char *)addr;
 844
 845         buf_size = min(count, len - 1);
 846         if (copy_from_user(buf, userbuf, buf_size)) {
 847                 res = -EFAULT;
 848                 goto out_unlock;
 849         }
 850         res = sscanf(buf, "%x %x", &offset, &value);
 851         if (res != 2) {
 852                 res = -EFAULT;
 853                 goto out_unlock;
 854         }
 855
 856         offval.offset = offset;
 857         offval.value = value;
 858         res = lbs_prepare_and_send_command(priv,
 859                                 CMD_RF_REG_ACCESS, 1,
 860                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 861         mdelay(10);
 862
 863         res = count;
 864 out_unlock:
 865         free_page(addr);
 866         return res;
 867 }
 868
 869 #define FOPS(fread, fwrite) { \
 870         .owner = THIS_MODULE, \
 871         .open = open_file_generic, \
 872         .read = (fread), \
 873         .write = (fwrite), \
 874 }
 875
 876 struct lbs_debugfs_files {
 877         char *name;
 878         int perm;
 879         struct file_operations fops;
 880 };
 881
 882 static struct lbs_debugfs_files debugfs_files[] = {
 883         { "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
 884         { "getscantable", 0444, FOPS(lbs_getscantable,
 885                                         write_file_dummy), },
 886         { "sleepparams", 0644, FOPS(lbs_sleepparams_read,
 887                                 lbs_sleepparams_write), },
 888         { "extscan", 0600, FOPS(NULL, lbs_extscan), },
 889         { "setuserscan", 0600, FOPS(NULL, lbs_setuserscan), },
 890 };
 891
 892 static struct lbs_debugfs_files debugfs_events_files[] = {
 893         {"low_rssi", 0644, FOPS(lbs_lowrssi_read,
 894                                 lbs_lowrssi_write), },
 895         {"low_snr", 0644, FOPS(lbs_lowsnr_read,
 896                                 lbs_lowsnr_write), },
 897         {"failure_count", 0644, FOPS(lbs_failcount_read,
 898                                 lbs_failcount_write), },
 899         {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read,
 900                                 lbs_bcnmiss_write), },
 901         {"high_rssi", 0644, FOPS(lbs_highrssi_read,
 902                                 lbs_highrssi_write), },
 903         {"high_snr", 0644, FOPS(lbs_highsnr_read,
 904                                 lbs_highsnr_write), },
 905 };
 906
 907 static struct lbs_debugfs_files debugfs_regs_files[] = {
 908         {"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
 909         {"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
 910         {"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
 911         {"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), },
 912         {"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), },
 913         {"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), },
 914 };
 915
 916 void lbs_debugfs_init(void)
 917 {
 918         if (!lbs_dir)
 919                 lbs_dir = debugfs_create_dir("lbs_wireless", NULL);
 920
 921         return;
 922 }
 923
 924 void lbs_debugfs_remove(void)
 925 {
 926         if (lbs_dir)
 927                  debugfs_remove(lbs_dir);
 928         return;
 929 }
 930
 931 void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
 932 {
 933         int i;
 934         struct lbs_debugfs_files *files;
 935         if (!lbs_dir)
 936                 goto exit;
 937
 938         priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir);
 939         if (!priv->debugfs_dir)
 940                 goto exit;
 941
 942         for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
 943                 files = &debugfs_files[i];
 944                 priv->debugfs_files[i] = debugfs_create_file(files->name,
 945                                                              files->perm,
 946                                                              priv->debugfs_dir,
 947                                                              priv,
 948                                                              &files->fops);
 949         }
 950
 951         priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
 952         if (!priv->events_dir)
 953                 goto exit;
 954
 955         for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
 956                 files = &debugfs_events_files[i];
 957                 priv->debugfs_events_files[i] = debugfs_create_file(files->name,
 958                                                              files->perm,
 959                                                              priv->events_dir,
 960                                                              priv,
 961                                                              &files->fops);
 962         }
 963
 964         priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
 965         if (!priv->regs_dir)
 966                 goto exit;
 967
 968         for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
 969                 files = &debugfs_regs_files[i];
 970                 priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
 971                                                              files->perm,
 972                                                              priv->regs_dir,
 973                                                              priv,
 974                                                              &files->fops);
 975         }
 976
 977 #ifdef PROC_DEBUG
 978         lbs_debug_init(priv, dev);
 979 #endif
 980 exit:
 981         return;
 982 }
 983
 984 void lbs_debugfs_remove_one(struct lbs_private *priv)
 985 {
 986         int i;
 987
 988         for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
 989                 debugfs_remove(priv->debugfs_regs_files[i]);
 990
 991         debugfs_remove(priv->regs_dir);
 992
 993         for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
 994                 debugfs_remove(priv->debugfs_events_files[i]);
 995
 996         debugfs_remove(priv->events_dir);
 997 #ifdef PROC_DEBUG
 998         debugfs_remove(priv->debugfs_debug);
 999 #endif
1000         for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
1001                 debugfs_remove(priv->debugfs_files[i]);
1002         debugfs_remove(priv->debugfs_dir);
1003 }
1004
1005
1006
1007 /* debug entry */
1008
1009 #ifdef PROC_DEBUG
1010
1011 #define item_size(n)    (FIELD_SIZEOF(struct lbs_adapter, n))
1012 #define item_addr(n)    (offsetof(struct lbs_adapter, n))
1013
1014
1015 struct debug_data {
1016         char name[32];
1017         u32 size;
1018         size_t addr;
1019 };
1020
1021 /* To debug any member of struct lbs_adapter, simply add one line here.
1022  */
1023 static struct debug_data items[] = {
1024         {"intcounter", item_size(intcounter), item_addr(intcounter)},
1025         {"psmode", item_size(psmode), item_addr(psmode)},
1026         {"psstate", item_size(psstate), item_addr(psstate)},
1027 };
1028
1029 static int num_of_items = ARRAY_SIZE(items);
1030
1031 /**
1032  *  @brief proc read function
1033  *
1034  *  @param page    pointer to buffer
1035  *  @param s       read data starting position
1036  *  @param off     offset
1037  *  @param cnt     counter
1038  *  @param eof     end of file flag
1039  *  @param data    data to output
1040  *  @return        number of output data
1041  */
1042 static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf,
1043                         size_t count, loff_t *ppos)
1044 {
1045         int val = 0;
1046         size_t pos = 0;
1047         ssize_t res;
1048         char *p;
1049         int i;
1050         struct debug_data *d;
1051         unsigned long addr = get_zeroed_page(GFP_KERNEL);
1052         char *buf = (char *)addr;
1053
1054         p = buf;
1055
1056         d = (struct debug_data *)file->private_data;
1057
1058         for (i = 0; i < num_of_items; i++) {
1059                 if (d[i].size == 1)
1060                         val = *((u8 *) d[i].addr);
1061                 else if (d[i].size == 2)
1062                         val = *((u16 *) d[i].addr);
1063                 else if (d[i].size == 4)
1064                         val = *((u32 *) d[i].addr);
1065                 else if (d[i].size == 8)
1066                         val = *((u64 *) d[i].addr);
1067
1068                 pos += sprintf(p + pos, "%s=%d\n", d[i].name, val);
1069         }
1070
1071         res = simple_read_from_buffer(userbuf, count, ppos, p, pos);
1072
1073         free_page(addr);
1074         return res;
1075 }
1076
1077 /**
1078  *  @brief proc write function
1079  *
1080  *  @param f       file pointer
1081  *  @param buf     pointer to data buffer
1082  *  @param cnt     data number to write
1083  *  @param data    data to write
1084  *  @return        number of data
1085  */
1086 static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
1087                             size_t cnt, loff_t *ppos)
1088 {
1089         int r, i;
1090         char *pdata;
1091         char *p;
1092         char *p0;
1093         char *p1;
1094         char *p2;
1095         struct debug_data *d = (struct debug_data *)f->private_data;
1096
1097         pdata = kmalloc(cnt, GFP_KERNEL);
1098         if (pdata == NULL)
1099                 return 0;
1100
1101         if (copy_from_user(pdata, buf, cnt)) {
1102                 lbs_deb_debugfs("Copy from user failed\n");
1103                 kfree(pdata);
1104                 return 0;
1105         }
1106
1107         p0 = pdata;
1108         for (i = 0; i < num_of_items; i++) {
1109                 do {
1110                         p = strstr(p0, d[i].name);
1111                         if (p == NULL)
1112                                 break;
1113                         p1 = strchr(p, '\n');
1114                         if (p1 == NULL)
1115                                 break;
1116                         p0 = p1++;
1117                         p2 = strchr(p, '=');
1118                         if (!p2)
1119                                 break;
1120                         p2++;
1121                         r = simple_strtoul(p2, NULL, 0);
1122                         if (d[i].size == 1)
1123                                 *((u8 *) d[i].addr) = (u8) r;
1124                         else if (d[i].size == 2)
1125                                 *((u16 *) d[i].addr) = (u16) r;
1126                         else if (d[i].size == 4)
1127                                 *((u32 *) d[i].addr) = (u32) r;
1128                         else if (d[i].size == 8)
1129                                 *((u64 *) d[i].addr) = (u64) r;
1130                         break;
1131                 } while (1);
1132         }
1133         kfree(pdata);
1134
1135         return (ssize_t)cnt;
1136 }
1137
1138 static struct file_operations lbs_debug_fops = {
1139         .owner = THIS_MODULE,
1140         .open = open_file_generic,
1141         .write = lbs_debugfs_write,
1142         .read = lbs_debugfs_read,
1143 };
1144
1145 /**
1146  *  @brief create debug proc file
1147  *
1148  *  @param priv    pointer struct lbs_private
1149  *  @param dev     pointer net_device
1150  *  @return        N/A
1151  */
1152 static void lbs_debug_init(struct lbs_private *priv, struct net_device *dev)
1153 {
1154         int i;
1155
1156         if (!priv->debugfs_dir)
1157                 return;
1158
1159         for (i = 0; i < num_of_items; i++)
1160                 items[i].addr += (size_t) priv->adapter;
1161
1162         priv->debugfs_debug = debugfs_create_file("debug", 0644,
1163                                                   priv->debugfs_dir, &items[0],
1164                                                   &lbs_debug_fops);
1165 }
1166 #endif