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 #include "cmd.h"
  14
  15 static struct dentry *lbs_dir;
  16 static char *szStates[] = {
  17         "Connected",
  18         "Disconnected"
  19 };
  20
  21 #ifdef PROC_DEBUG
  22 static void lbs_debug_init(struct lbs_private *priv);
  23 #endif
  24
  25 static int open_file_generic(struct inode *inode, struct file *file)
  26 {
  27         file->private_data = inode->i_private;
  28         return 0;
  29 }
  30
  31 static ssize_t write_file_dummy(struct file *file, const char __user *buf,
  32                                 size_t count, loff_t *ppos)
  33 {
  34         return -EINVAL;
  35 }
  36
  37 static const size_t len = PAGE_SIZE;
  38
  39 static ssize_t lbs_dev_info(struct file *file, char __user *userbuf,
  40                                   size_t count, loff_t *ppos)
  41 {
  42         struct lbs_private *priv = file->private_data;
  43         size_t pos = 0;
  44         unsigned long addr = get_zeroed_page(GFP_KERNEL);
  45         char *buf = (char *)addr;
  46         ssize_t res;
  47
  48         pos += snprintf(buf+pos, len-pos, "state = %s\n",
  49                                 szStates[priv->connect_status]);
  50         pos += snprintf(buf+pos, len-pos, "region_code = %02x\n",
  51                                 (u32) priv->regioncode);
  52
  53         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
  54
  55         free_page(addr);
  56         return res;
  57 }
  58
  59
  60 static ssize_t lbs_getscantable(struct file *file, char __user *userbuf,
  61                                   size_t count, loff_t *ppos)
  62 {
  63         struct lbs_private *priv = file->private_data;
  64         size_t pos = 0;
  65         int numscansdone = 0, res;
  66         unsigned long addr = get_zeroed_page(GFP_KERNEL);
  67         char *buf = (char *)addr;
  68         DECLARE_MAC_BUF(mac);
  69         struct bss_descriptor * iter_bss;
  70
  71         pos += snprintf(buf+pos, len-pos,
  72                 "# | ch  | rssi |       bssid       |   cap    | Qual | SSID \n");
  73
  74         mutex_lock(&priv->lock);
  75         list_for_each_entry (iter_bss, &priv->network_list, list) {
  76                 u16 ibss = (iter_bss->capability & WLAN_CAPABILITY_IBSS);
  77                 u16 privacy = (iter_bss->capability & WLAN_CAPABILITY_PRIVACY);
  78                 u16 spectrum_mgmt = (iter_bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT);
  79
  80                 pos += snprintf(buf+pos, len-pos,
  81                         "%02u| %03d | %04d | %s |",
  82                         numscansdone, iter_bss->channel, iter_bss->rssi,
  83                         print_mac(mac, iter_bss->bssid));
  84                 pos += snprintf(buf+pos, len-pos, " %04x-", iter_bss->capability);
  85                 pos += snprintf(buf+pos, len-pos, "%c%c%c |",
  86                                 ibss ? 'A' : 'I', privacy ? 'P' : ' ',
  87                                 spectrum_mgmt ? 'S' : ' ');
  88                 pos += snprintf(buf+pos, len-pos, " %04d |", SCAN_RSSI(iter_bss->rssi));
  89                 pos += snprintf(buf+pos, len-pos, " %s\n",
  90                                 escape_essid(iter_bss->ssid, iter_bss->ssid_len));
  91
  92                 numscansdone++;
  93         }
  94         mutex_unlock(&priv->lock);
  95
  96         res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
  97
  98         free_page(addr);
  99         return res;
 100 }
 101
 102 static ssize_t lbs_sleepparams_write(struct file *file,
 103                                 const char __user *user_buf, size_t count,
 104                                 loff_t *ppos)
 105 {
 106         struct lbs_private *priv = file->private_data;
 107         ssize_t buf_size, ret;
 108         struct sleep_params sp;
 109         int p1, p2, p3, p4, p5, p6;
 110         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 111         char *buf = (char *)addr;
 112
 113         buf_size = min(count, len - 1);
 114         if (copy_from_user(buf, user_buf, buf_size)) {
 115                 ret = -EFAULT;
 116                 goto out_unlock;
 117         }
 118         ret = sscanf(buf, "%d %d %d %d %d %d", &p1, &p2, &p3, &p4, &p5, &p6);
 119         if (ret != 6) {
 120                 ret = -EINVAL;
 121                 goto out_unlock;
 122         }
 123         sp.sp_error = p1;
 124         sp.sp_offset = p2;
 125         sp.sp_stabletime = p3;
 126         sp.sp_calcontrol = p4;
 127         sp.sp_extsleepclk = p5;
 128         sp.sp_reserved = p6;
 129
 130         ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_SET, &sp);
 131         if (!ret)
 132                 ret = count;
 133         else if (ret > 0)
 134                 ret = -EINVAL;
 135
 136 out_unlock:
 137         free_page(addr);
 138         return ret;
 139 }
 140
 141 static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf,
 142                                   size_t count, loff_t *ppos)
 143 {
 144         struct lbs_private *priv = file->private_data;
 145         ssize_t ret;
 146         size_t pos = 0;
 147         struct sleep_params sp;
 148         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 149         char *buf = (char *)addr;
 150
 151         ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp);
 152         if (ret)
 153                 goto out_unlock;
 154
 155         pos += snprintf(buf, len, "%d %d %d %d %d %d\n", sp.sp_error,
 156                         sp.sp_offset, sp.sp_stabletime,
 157                         sp.sp_calcontrol, sp.sp_extsleepclk,
 158                         sp.sp_reserved);
 159
 160         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 161
 162 out_unlock:
 163         free_page(addr);
 164         return ret;
 165 }
 166
 167 /*
 168  * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
 169  * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
 170  * firmware. Here's an example:
 171  *      04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
 172  *      00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
 173  *      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 174  *
 175  * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
 176  * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
 177  * defined in mrvlietypes_thresholds
 178  *
 179  * This function searches in this TLV data chunk for a given TLV type
 180  * and returns a pointer to the first data byte of the TLV, or to NULL
 181  * if the TLV hasn't been found.
 182  */
 183 static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size)
 184 {
 185         struct mrvlietypesheader *tlv_h;
 186         uint16_t length;
 187         ssize_t pos = 0;
 188
 189         while (pos < size) {
 190                 tlv_h = (struct mrvlietypesheader *) tlv;
 191                 if (!tlv_h->len)
 192                         return NULL;
 193                 if (tlv_h->type == cpu_to_le16(tlv_type))
 194                         return tlv_h;
 195                 length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h);
 196                 pos += length;
 197                 tlv += length;
 198         }
 199         return NULL;
 200 }
 201
 202
 203 static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
 204                                   struct file *file, char __user *userbuf,
 205                                   size_t count, loff_t *ppos)
 206 {
 207         struct cmd_ds_802_11_subscribe_event *subscribed;
 208         struct mrvlietypes_thresholds *got;
 209         struct lbs_private *priv = file->private_data;
 210         ssize_t ret = 0;
 211         size_t pos = 0;
 212         char *buf;
 213         u8 value;
 214         u8 freq;
 215         int events = 0;
 216
 217         buf = (char *)get_zeroed_page(GFP_KERNEL);
 218         if (!buf)
 219                 return -ENOMEM;
 220
 221         subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL);
 222         if (!subscribed) {
 223                 ret = -ENOMEM;
 224                 goto out_page;
 225         }
 226
 227         subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed));
 228         subscribed->action = cpu_to_le16(CMD_ACT_GET);
 229
 230         ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed);
 231         if (ret)
 232                 goto out_cmd;
 233
 234         got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv));
 235         if (got) {
 236                 value = got->value;
 237                 freq  = got->freq;
 238                 events = le16_to_cpu(subscribed->events);
 239
 240                 pos += snprintf(buf, len, "%d %d %d\n", value, freq,
 241                                 !!(events & event_mask));
 242         }
 243
 244         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 245
 246  out_cmd:
 247         kfree(subscribed);
 248
 249  out_page:
 250         free_page((unsigned long)buf);
 251         return ret;
 252 }
 253
 254
 255 static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
 256                                    struct file *file,
 257                                    const char __user *userbuf, size_t count,
 258                                    loff_t *ppos)
 259 {
 260         struct cmd_ds_802_11_subscribe_event *events;
 261         struct mrvlietypes_thresholds *tlv;
 262         struct lbs_private *priv = file->private_data;
 263         ssize_t buf_size;
 264         int value, freq, new_mask;
 265         uint16_t curr_mask;
 266         char *buf;
 267         int ret;
 268
 269         buf = (char *)get_zeroed_page(GFP_KERNEL);
 270         if (!buf)
 271                 return -ENOMEM;
 272
 273         buf_size = min(count, len - 1);
 274         if (copy_from_user(buf, userbuf, buf_size)) {
 275                 ret = -EFAULT;
 276                 goto out_page;
 277         }
 278         ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
 279         if (ret != 3) {
 280                 ret = -EINVAL;
 281                 goto out_page;
 282         }
 283         events = kzalloc(sizeof(*events), GFP_KERNEL);
 284         if (!events) {
 285                 ret = -ENOMEM;
 286                 goto out_page;
 287         }
 288
 289         events->hdr.size = cpu_to_le16(sizeof(*events));
 290         events->action = cpu_to_le16(CMD_ACT_GET);
 291
 292         ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
 293         if (ret)
 294                 goto out_events;
 295
 296         curr_mask = le16_to_cpu(events->events);
 297
 298         if (new_mask)
 299                 new_mask = curr_mask | event_mask;
 300         else
 301                 new_mask = curr_mask & ~event_mask;
 302
 303         /* Now everything is set and we can send stuff down to the firmware */
 304
 305         tlv = (void *)events->tlv;
 306
 307         events->action = cpu_to_le16(CMD_ACT_SET);
 308         events->events = cpu_to_le16(new_mask);
 309         tlv->header.type = cpu_to_le16(tlv_type);
 310         tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header));
 311         tlv->value = value;
 312         if (tlv_type != TLV_TYPE_BCNMISS)
 313                 tlv->freq = freq;
 314
 315         /* The command header, the action, the event mask, and one TLV */
 316         events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 4 + sizeof(*tlv));
 317
 318         ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
 319
 320         if (!ret)
 321                 ret = count;
 322  out_events:
 323         kfree(events);
 324  out_page:
 325         free_page((unsigned long)buf);
 326         return ret;
 327 }
 328
 329
 330 static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf,
 331                                 size_t count, loff_t *ppos)
 332 {
 333         return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
 334                                   file, userbuf, count, ppos);
 335 }
 336
 337
 338 static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf,
 339                                  size_t count, loff_t *ppos)
 340 {
 341         return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
 342                                    file, userbuf, count, ppos);
 343 }
 344
 345
 346 static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf,
 347                                size_t count, loff_t *ppos)
 348 {
 349         return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
 350                                   file, userbuf, count, ppos);
 351 }
 352
 353
 354 static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf,
 355                                 size_t count, loff_t *ppos)
 356 {
 357         return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
 358                                    file, userbuf, count, ppos);
 359 }
 360
 361
 362 static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf,
 363                                   size_t count, loff_t *ppos)
 364 {
 365         return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
 366                                   file, userbuf, count, ppos);
 367 }
 368
 369
 370 static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf,
 371                                    size_t count, loff_t *ppos)
 372 {
 373         return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
 374                                    file, userbuf, count, ppos);
 375 }
 376
 377
 378 static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf,
 379                                  size_t count, loff_t *ppos)
 380 {
 381         return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
 382                                   file, userbuf, count, ppos);
 383 }
 384
 385
 386 static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf,
 387                                   size_t count, loff_t *ppos)
 388 {
 389         return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
 390                                    file, userbuf, count, ppos);
 391 }
 392
 393
 394 static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf,
 395                                 size_t count, loff_t *ppos)
 396 {
 397         return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
 398                                   file, userbuf, count, ppos);
 399 }
 400
 401
 402 static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf,
 403                                  size_t count, loff_t *ppos)
 404 {
 405         return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
 406                                    file, userbuf, count, ppos);
 407 }
 408
 409 static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf,
 410                                 size_t count, loff_t *ppos)
 411 {
 412         return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
 413                                   file, userbuf, count, ppos);
 414 }
 415
 416
 417 static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf,
 418                                  size_t count, loff_t *ppos)
 419 {
 420         return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
 421                                    file, userbuf, count, ppos);
 422 }
 423
 424
 425
 426 static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
 427                                   size_t count, loff_t *ppos)
 428 {
 429         struct lbs_private *priv = file->private_data;
 430         struct lbs_offset_value offval;
 431         ssize_t pos = 0;
 432         int ret;
 433         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 434         char *buf = (char *)addr;
 435
 436         offval.offset = priv->mac_offset;
 437         offval.value = 0;
 438
 439         ret = lbs_prepare_and_send_command(priv,
 440                                 CMD_MAC_REG_ACCESS, 0,
 441                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 442         mdelay(10);
 443         pos += snprintf(buf+pos, len-pos, "MAC[0x%x] = 0x%08x\n",
 444                                 priv->mac_offset, priv->offsetvalue.value);
 445
 446         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 447         free_page(addr);
 448         return ret;
 449 }
 450
 451 static ssize_t lbs_rdmac_write(struct file *file,
 452                                     const char __user *userbuf,
 453                                     size_t count, loff_t *ppos)
 454 {
 455         struct lbs_private *priv = file->private_data;
 456         ssize_t res, buf_size;
 457         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 458         char *buf = (char *)addr;
 459
 460         buf_size = min(count, len - 1);
 461         if (copy_from_user(buf, userbuf, buf_size)) {
 462                 res = -EFAULT;
 463                 goto out_unlock;
 464         }
 465         priv->mac_offset = simple_strtoul((char *)buf, NULL, 16);
 466         res = count;
 467 out_unlock:
 468         free_page(addr);
 469         return res;
 470 }
 471
 472 static ssize_t lbs_wrmac_write(struct file *file,
 473                                     const char __user *userbuf,
 474                                     size_t count, loff_t *ppos)
 475 {
 476
 477         struct lbs_private *priv = file->private_data;
 478         ssize_t res, buf_size;
 479         u32 offset, value;
 480         struct lbs_offset_value offval;
 481         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 482         char *buf = (char *)addr;
 483
 484         buf_size = min(count, len - 1);
 485         if (copy_from_user(buf, userbuf, buf_size)) {
 486                 res = -EFAULT;
 487                 goto out_unlock;
 488         }
 489         res = sscanf(buf, "%x %x", &offset, &value);
 490         if (res != 2) {
 491                 res = -EFAULT;
 492                 goto out_unlock;
 493         }
 494
 495         offval.offset = offset;
 496         offval.value = value;
 497         res = lbs_prepare_and_send_command(priv,
 498                                 CMD_MAC_REG_ACCESS, 1,
 499                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 500         mdelay(10);
 501
 502         res = count;
 503 out_unlock:
 504         free_page(addr);
 505         return res;
 506 }
 507
 508 static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
 509                                   size_t count, loff_t *ppos)
 510 {
 511         struct lbs_private *priv = file->private_data;
 512         struct lbs_offset_value offval;
 513         ssize_t pos = 0;
 514         int ret;
 515         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 516         char *buf = (char *)addr;
 517
 518         offval.offset = priv->bbp_offset;
 519         offval.value = 0;
 520
 521         ret = lbs_prepare_and_send_command(priv,
 522                                 CMD_BBP_REG_ACCESS, 0,
 523                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 524         mdelay(10);
 525         pos += snprintf(buf+pos, len-pos, "BBP[0x%x] = 0x%08x\n",
 526                                 priv->bbp_offset, priv->offsetvalue.value);
 527
 528         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 529         free_page(addr);
 530
 531         return ret;
 532 }
 533
 534 static ssize_t lbs_rdbbp_write(struct file *file,
 535                                     const char __user *userbuf,
 536                                     size_t count, loff_t *ppos)
 537 {
 538         struct lbs_private *priv = file->private_data;
 539         ssize_t res, buf_size;
 540         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 541         char *buf = (char *)addr;
 542
 543         buf_size = min(count, len - 1);
 544         if (copy_from_user(buf, userbuf, buf_size)) {
 545                 res = -EFAULT;
 546                 goto out_unlock;
 547         }
 548         priv->bbp_offset = simple_strtoul((char *)buf, NULL, 16);
 549         res = count;
 550 out_unlock:
 551         free_page(addr);
 552         return res;
 553 }
 554
 555 static ssize_t lbs_wrbbp_write(struct file *file,
 556                                     const char __user *userbuf,
 557                                     size_t count, loff_t *ppos)
 558 {
 559
 560         struct lbs_private *priv = file->private_data;
 561         ssize_t res, buf_size;
 562         u32 offset, value;
 563         struct lbs_offset_value offval;
 564         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 565         char *buf = (char *)addr;
 566
 567         buf_size = min(count, len - 1);
 568         if (copy_from_user(buf, userbuf, buf_size)) {
 569                 res = -EFAULT;
 570                 goto out_unlock;
 571         }
 572         res = sscanf(buf, "%x %x", &offset, &value);
 573         if (res != 2) {
 574                 res = -EFAULT;
 575                 goto out_unlock;
 576         }
 577
 578         offval.offset = offset;
 579         offval.value = value;
 580         res = lbs_prepare_and_send_command(priv,
 581                                 CMD_BBP_REG_ACCESS, 1,
 582                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 583         mdelay(10);
 584
 585         res = count;
 586 out_unlock:
 587         free_page(addr);
 588         return res;
 589 }
 590
 591 static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
 592                                   size_t count, loff_t *ppos)
 593 {
 594         struct lbs_private *priv = file->private_data;
 595         struct lbs_offset_value offval;
 596         ssize_t pos = 0;
 597         int ret;
 598         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 599         char *buf = (char *)addr;
 600
 601         offval.offset = priv->rf_offset;
 602         offval.value = 0;
 603
 604         ret = lbs_prepare_and_send_command(priv,
 605                                 CMD_RF_REG_ACCESS, 0,
 606                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 607         mdelay(10);
 608         pos += snprintf(buf+pos, len-pos, "RF[0x%x] = 0x%08x\n",
 609                                 priv->rf_offset, priv->offsetvalue.value);
 610
 611         ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
 612         free_page(addr);
 613
 614         return ret;
 615 }
 616
 617 static ssize_t lbs_rdrf_write(struct file *file,
 618                                     const char __user *userbuf,
 619                                     size_t count, loff_t *ppos)
 620 {
 621         struct lbs_private *priv = file->private_data;
 622         ssize_t res, buf_size;
 623         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 624         char *buf = (char *)addr;
 625
 626         buf_size = min(count, len - 1);
 627         if (copy_from_user(buf, userbuf, buf_size)) {
 628                 res = -EFAULT;
 629                 goto out_unlock;
 630         }
 631         priv->rf_offset = simple_strtoul((char *)buf, NULL, 16);
 632         res = count;
 633 out_unlock:
 634         free_page(addr);
 635         return res;
 636 }
 637
 638 static ssize_t lbs_wrrf_write(struct file *file,
 639                                     const char __user *userbuf,
 640                                     size_t count, loff_t *ppos)
 641 {
 642
 643         struct lbs_private *priv = file->private_data;
 644         ssize_t res, buf_size;
 645         u32 offset, value;
 646         struct lbs_offset_value offval;
 647         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 648         char *buf = (char *)addr;
 649
 650         buf_size = min(count, len - 1);
 651         if (copy_from_user(buf, userbuf, buf_size)) {
 652                 res = -EFAULT;
 653                 goto out_unlock;
 654         }
 655         res = sscanf(buf, "%x %x", &offset, &value);
 656         if (res != 2) {
 657                 res = -EFAULT;
 658                 goto out_unlock;
 659         }
 660
 661         offval.offset = offset;
 662         offval.value = value;
 663         res = lbs_prepare_and_send_command(priv,
 664                                 CMD_RF_REG_ACCESS, 1,
 665                                 CMD_OPTION_WAITFORRSP, 0, &offval);
 666         mdelay(10);
 667
 668         res = count;
 669 out_unlock:
 670         free_page(addr);
 671         return res;
 672 }
 673
 674 #define FOPS(fread, fwrite) { \
 675         .owner = THIS_MODULE, \
 676         .open = open_file_generic, \
 677         .read = (fread), \
 678         .write = (fwrite), \
 679 }
 680
 681 struct lbs_debugfs_files {
 682         char *name;
 683         int perm;
 684         struct file_operations fops;
 685 };
 686
 687 static struct lbs_debugfs_files debugfs_files[] = {
 688         { "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
 689         { "getscantable", 0444, FOPS(lbs_getscantable,
 690                                         write_file_dummy), },
 691         { "sleepparams", 0644, FOPS(lbs_sleepparams_read,
 692                                 lbs_sleepparams_write), },
 693 };
 694
 695 static struct lbs_debugfs_files debugfs_events_files[] = {
 696         {"low_rssi", 0644, FOPS(lbs_lowrssi_read,
 697                                 lbs_lowrssi_write), },
 698         {"low_snr", 0644, FOPS(lbs_lowsnr_read,
 699                                 lbs_lowsnr_write), },
 700         {"failure_count", 0644, FOPS(lbs_failcount_read,
 701                                 lbs_failcount_write), },
 702         {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read,
 703                                 lbs_bcnmiss_write), },
 704         {"high_rssi", 0644, FOPS(lbs_highrssi_read,
 705                                 lbs_highrssi_write), },
 706         {"high_snr", 0644, FOPS(lbs_highsnr_read,
 707                                 lbs_highsnr_write), },
 708 };
 709
 710 static struct lbs_debugfs_files debugfs_regs_files[] = {
 711         {"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
 712         {"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
 713         {"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
 714         {"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), },
 715         {"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), },
 716         {"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), },
 717 };
 718
 719 void lbs_debugfs_init(void)
 720 {
 721         if (!lbs_dir)
 722                 lbs_dir = debugfs_create_dir("lbs_wireless", NULL);
 723
 724         return;
 725 }
 726
 727 void lbs_debugfs_remove(void)
 728 {
 729         if (lbs_dir)
 730                  debugfs_remove(lbs_dir);
 731         return;
 732 }
 733
 734 void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
 735 {
 736         int i;
 737         struct lbs_debugfs_files *files;
 738         if (!lbs_dir)
 739                 goto exit;
 740
 741         priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir);
 742         if (!priv->debugfs_dir)
 743                 goto exit;
 744
 745         for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
 746                 files = &debugfs_files[i];
 747                 priv->debugfs_files[i] = debugfs_create_file(files->name,
 748                                                              files->perm,
 749                                                              priv->debugfs_dir,
 750                                                              priv,
 751                                                              &files->fops);
 752         }
 753
 754         priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
 755         if (!priv->events_dir)
 756                 goto exit;
 757
 758         for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
 759                 files = &debugfs_events_files[i];
 760                 priv->debugfs_events_files[i] = debugfs_create_file(files->name,
 761                                                              files->perm,
 762                                                              priv->events_dir,
 763                                                              priv,
 764                                                              &files->fops);
 765         }
 766
 767         priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
 768         if (!priv->regs_dir)
 769                 goto exit;
 770
 771         for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
 772                 files = &debugfs_regs_files[i];
 773                 priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
 774                                                              files->perm,
 775                                                              priv->regs_dir,
 776                                                              priv,
 777                                                              &files->fops);
 778         }
 779
 780 #ifdef PROC_DEBUG
 781         lbs_debug_init(priv);
 782 #endif
 783 exit:
 784         return;
 785 }
 786
 787 void lbs_debugfs_remove_one(struct lbs_private *priv)
 788 {
 789         int i;
 790
 791         for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
 792                 debugfs_remove(priv->debugfs_regs_files[i]);
 793
 794         debugfs_remove(priv->regs_dir);
 795
 796         for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
 797                 debugfs_remove(priv->debugfs_events_files[i]);
 798
 799         debugfs_remove(priv->events_dir);
 800 #ifdef PROC_DEBUG
 801         debugfs_remove(priv->debugfs_debug);
 802 #endif
 803         for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
 804                 debugfs_remove(priv->debugfs_files[i]);
 805         debugfs_remove(priv->debugfs_dir);
 806 }
 807
 808
 809
 810 /* debug entry */
 811
 812 #ifdef PROC_DEBUG
 813
 814 #define item_size(n)    (FIELD_SIZEOF(struct lbs_private, n))
 815 #define item_addr(n)    (offsetof(struct lbs_private, n))
 816
 817
 818 struct debug_data {
 819         char name[32];
 820         u32 size;
 821         size_t addr;
 822 };
 823
 824 /* To debug any member of struct lbs_private, simply add one line here.
 825  */
 826 static struct debug_data items[] = {
 827         {"psmode", item_size(psmode), item_addr(psmode)},
 828         {"psstate", item_size(psstate), item_addr(psstate)},
 829 };
 830
 831 static int num_of_items = ARRAY_SIZE(items);
 832
 833 /**
 834  *  @brief proc read function
 835  *
 836  *  @param page    pointer to buffer
 837  *  @param s       read data starting position
 838  *  @param off     offset
 839  *  @param cnt     counter
 840  *  @param eof     end of file flag
 841  *  @param data    data to output
 842  *  @return        number of output data
 843  */
 844 static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf,
 845                         size_t count, loff_t *ppos)
 846 {
 847         int val = 0;
 848         size_t pos = 0;
 849         ssize_t res;
 850         char *p;
 851         int i;
 852         struct debug_data *d;
 853         unsigned long addr = get_zeroed_page(GFP_KERNEL);
 854         char *buf = (char *)addr;
 855
 856         p = buf;
 857
 858         d = (struct debug_data *)file->private_data;
 859
 860         for (i = 0; i < num_of_items; i++) {
 861                 if (d[i].size == 1)
 862                         val = *((u8 *) d[i].addr);
 863                 else if (d[i].size == 2)
 864                         val = *((u16 *) d[i].addr);
 865                 else if (d[i].size == 4)
 866                         val = *((u32 *) d[i].addr);
 867                 else if (d[i].size == 8)
 868                         val = *((u64 *) d[i].addr);
 869
 870                 pos += sprintf(p + pos, "%s=%d\n", d[i].name, val);
 871         }
 872
 873         res = simple_read_from_buffer(userbuf, count, ppos, p, pos);
 874
 875         free_page(addr);
 876         return res;
 877 }
 878
 879 /**
 880  *  @brief proc write function
 881  *
 882  *  @param f       file pointer
 883  *  @param buf     pointer to data buffer
 884  *  @param cnt     data number to write
 885  *  @param data    data to write
 886  *  @return        number of data
 887  */
 888 static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
 889                             size_t cnt, loff_t *ppos)
 890 {
 891         int r, i;
 892         char *pdata;
 893         char *p;
 894         char *p0;
 895         char *p1;
 896         char *p2;
 897         struct debug_data *d = (struct debug_data *)f->private_data;
 898
 899         pdata = kmalloc(cnt, GFP_KERNEL);
 900         if (pdata == NULL)
 901                 return 0;
 902
 903         if (copy_from_user(pdata, buf, cnt)) {
 904                 lbs_deb_debugfs("Copy from user failed\n");
 905                 kfree(pdata);
 906                 return 0;
 907         }
 908
 909         p0 = pdata;
 910         for (i = 0; i < num_of_items; i++) {
 911                 do {
 912                         p = strstr(p0, d[i].name);
 913                         if (p == NULL)
 914                                 break;
 915                         p1 = strchr(p, '\n');
 916                         if (p1 == NULL)
 917                                 break;
 918                         p0 = p1++;
 919                         p2 = strchr(p, '=');
 920                         if (!p2)
 921                                 break;
 922                         p2++;
 923                         r = simple_strtoul(p2, NULL, 0);
 924                         if (d[i].size == 1)
 925                                 *((u8 *) d[i].addr) = (u8) r;
 926                         else if (d[i].size == 2)
 927                                 *((u16 *) d[i].addr) = (u16) r;
 928                         else if (d[i].size == 4)
 929                                 *((u32 *) d[i].addr) = (u32) r;
 930                         else if (d[i].size == 8)
 931                                 *((u64 *) d[i].addr) = (u64) r;
 932                         break;
 933                 } while (1);
 934         }
 935         kfree(pdata);
 936
 937         return (ssize_t)cnt;
 938 }
 939
 940 static struct file_operations lbs_debug_fops = {
 941         .owner = THIS_MODULE,
 942         .open = open_file_generic,
 943         .write = lbs_debugfs_write,
 944         .read = lbs_debugfs_read,
 945 };
 946
 947 /**
 948  *  @brief create debug proc file
 949  *
 950  *  @param priv    pointer struct lbs_private
 951  *  @param dev     pointer net_device
 952  *  @return        N/A
 953  */
 954 static void lbs_debug_init(struct lbs_private *priv)
 955 {
 956         int i;
 957
 958         if (!priv->debugfs_dir)
 959                 return;
 960
 961         for (i = 0; i < num_of_items; i++)
 962                 items[i].addr += (size_t) priv;
 963
 964         priv->debugfs_debug = debugfs_create_file("debug", 0644,
 965                                                   priv->debugfs_dir, &items[0],
 966                                                   &lbs_debug_fops);
 967 }
 968 #endif