* adding network config for olpc * adding libertas * config issue * quiet mode for...
[openwrt/openwrt.git] / package / libertas / src / debugfs.c
diff --git a/package/libertas/src/debugfs.c b/package/libertas/src/debugfs.c
new file mode 100644 (file)
index 0000000..f4858bd
--- /dev/null
@@ -0,0 +1,1163 @@
+#include <linux/module.h>
+#include <linux/dcache.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <net/iw_handler.h>
+
+#include "dev.h"
+#include "decl.h"
+#include "host.h"
+#include "debugfs.h"
+
+static struct dentry *lbs_dir;
+static char *szStates[] = {
+       "Connected",
+       "Disconnected"
+};
+
+#ifdef PROC_DEBUG
+static void lbs_debug_init(struct lbs_private *priv, struct net_device *dev);
+#endif
+
+static int open_file_generic(struct inode *inode, struct file *file)
+{
+       file->private_data = inode->i_private;
+       return 0;
+}
+
+static ssize_t write_file_dummy(struct file *file, const char __user *buf,
+                                size_t count, loff_t *ppos)
+{
+        return -EINVAL;
+}
+
+static const size_t len = PAGE_SIZE;
+
+static ssize_t lbs_dev_info(struct file *file, char __user *userbuf,
+                                 size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       size_t pos = 0;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+       ssize_t res;
+
+       pos += snprintf(buf+pos, len-pos, "state = %s\n",
+                               szStates[priv->connect_status]);
+       pos += snprintf(buf+pos, len-pos, "region_code = %02x\n",
+                               (u32) priv->regioncode);
+
+       res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+       free_page(addr);
+       return res;
+}
+
+
+static ssize_t lbs_getscantable(struct file *file, char __user *userbuf,
+                                 size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       size_t pos = 0;
+       int numscansdone = 0, res;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+       DECLARE_MAC_BUF(mac);
+       struct bss_descriptor * iter_bss;
+
+       pos += snprintf(buf+pos, len-pos,
+               "# | ch  | rssi |       bssid       |   cap    | Qual | SSID \n");
+
+       mutex_lock(&priv->lock);
+       list_for_each_entry (iter_bss, &priv->network_list, list) {
+               u16 ibss = (iter_bss->capability & WLAN_CAPABILITY_IBSS);
+               u16 privacy = (iter_bss->capability & WLAN_CAPABILITY_PRIVACY);
+               u16 spectrum_mgmt = (iter_bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT);
+
+               pos += snprintf(buf+pos, len-pos,
+                       "%02u| %03d | %04ld | %s |",
+                       numscansdone, iter_bss->channel, iter_bss->rssi,
+                       print_mac(mac, iter_bss->bssid));
+               pos += snprintf(buf+pos, len-pos, " %04x-", iter_bss->capability);
+               pos += snprintf(buf+pos, len-pos, "%c%c%c |",
+                               ibss ? 'A' : 'I', privacy ? 'P' : ' ',
+                               spectrum_mgmt ? 'S' : ' ');
+               pos += snprintf(buf+pos, len-pos, " %04d |", SCAN_RSSI(iter_bss->rssi));
+               pos += snprintf(buf+pos, len-pos, " %s\n",
+                               escape_essid(iter_bss->ssid, iter_bss->ssid_len));
+
+               numscansdone++;
+       }
+       mutex_unlock(&priv->lock);
+
+       res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+       free_page(addr);
+       return res;
+}
+
+static ssize_t lbs_sleepparams_write(struct file *file,
+                               const char __user *user_buf, size_t count,
+                               loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       ssize_t buf_size, res;
+       int p1, p2, p3, p4, p5, p6;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, user_buf, buf_size)) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       res = sscanf(buf, "%d %d %d %d %d %d", &p1, &p2, &p3, &p4, &p5, &p6);
+       if (res != 6) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       priv->sp.sp_error = p1;
+       priv->sp.sp_offset = p2;
+       priv->sp.sp_stabletime = p3;
+       priv->sp.sp_calcontrol = p4;
+       priv->sp.sp_extsleepclk = p5;
+       priv->sp.sp_reserved = p6;
+
+       res = lbs_prepare_and_send_command(priv,
+                               CMD_802_11_SLEEP_PARAMS,
+                               CMD_ACT_SET,
+                               CMD_OPTION_WAITFORRSP, 0, NULL);
+
+       if (!res)
+               res = count;
+       else
+               res = -EINVAL;
+
+out_unlock:
+       free_page(addr);
+       return res;
+}
+
+static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf,
+                                 size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       ssize_t res;
+       size_t pos = 0;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       res = lbs_prepare_and_send_command(priv,
+                               CMD_802_11_SLEEP_PARAMS,
+                               CMD_ACT_GET,
+                               CMD_OPTION_WAITFORRSP, 0, NULL);
+       if (res) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+
+       pos += snprintf(buf, len, "%d %d %d %d %d %d\n", priv->sp.sp_error,
+                       priv->sp.sp_offset, priv->sp.sp_stabletime,
+                       priv->sp.sp_calcontrol, priv->sp.sp_extsleepclk,
+                       priv->sp.sp_reserved);
+
+       res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+out_unlock:
+       free_page(addr);
+       return res;
+}
+
+static ssize_t lbs_extscan(struct file *file, const char __user *userbuf,
+                                 size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       ssize_t res, buf_size;
+       union iwreq_data wrqu;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, userbuf, buf_size)) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+
+       lbs_send_specific_ssid_scan(priv, buf, strlen(buf)-1, 0);
+
+       memset(&wrqu, 0, sizeof(union iwreq_data));
+       wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
+
+out_unlock:
+       free_page(addr);
+       return count;
+}
+
+static void lbs_parse_bssid(char *buf, size_t count,
+       struct lbs_ioctl_user_scan_cfg *scan_cfg)
+{
+       char *hold;
+       unsigned int mac[ETH_ALEN];
+
+       hold = strstr(buf, "bssid=");
+       if (!hold)
+               return;
+       hold += 6;
+       sscanf(hold, MAC_FMT, mac, mac+1, mac+2, mac+3, mac+4, mac+5);
+       memcpy(scan_cfg->bssid, mac, ETH_ALEN);
+}
+
+static void lbs_parse_ssid(char *buf, size_t count,
+       struct lbs_ioctl_user_scan_cfg *scan_cfg)
+{
+       char *hold, *end;
+       ssize_t size;
+
+       hold = strstr(buf, "ssid=");
+       if (!hold)
+               return;
+       hold += 5;
+       end = strchr(hold, ' ');
+       if (!end)
+               end = buf + count - 1;
+
+       size = min((size_t)IW_ESSID_MAX_SIZE, (size_t) (end - hold));
+       strncpy(scan_cfg->ssid, hold, size);
+
+       return;
+}
+
+static int lbs_parse_clear(char *buf, size_t count, const char *tag)
+{
+       char *hold;
+       int val;
+
+       hold = strstr(buf, tag);
+       if (!hold)
+               return 0;
+       hold += strlen(tag);
+       sscanf(hold, "%d", &val);
+
+       if (val != 0)
+               val = 1;
+
+       return val;
+}
+
+static int lbs_parse_dur(char *buf, size_t count,
+       struct lbs_ioctl_user_scan_cfg *scan_cfg)
+{
+       char *hold;
+       int val;
+
+       hold = strstr(buf, "dur=");
+       if (!hold)
+               return 0;
+       hold += 4;
+       sscanf(hold, "%d", &val);
+
+       return val;
+}
+
+static void lbs_parse_type(char *buf, size_t count,
+       struct lbs_ioctl_user_scan_cfg *scan_cfg)
+{
+       char *hold;
+       int val;
+
+       hold = strstr(buf, "type=");
+       if (!hold)
+               return;
+       hold += 5;
+       sscanf(hold, "%d", &val);
+
+       /* type=1,2 or 3 */
+       if (val < 1 || val > 3)
+               return;
+
+       scan_cfg->bsstype = val;
+
+       return;
+}
+
+static ssize_t lbs_setuserscan(struct file *file,
+                                   const char __user *userbuf,
+                                   size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       ssize_t res, buf_size;
+       struct lbs_ioctl_user_scan_cfg *scan_cfg;
+       union iwreq_data wrqu;
+       int dur;
+       char *buf = (char *)get_zeroed_page(GFP_KERNEL);
+
+       if (!buf)
+               return -ENOMEM;
+               
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, userbuf, buf_size)) {
+               res = -EFAULT;
+               goto out_buf;
+       }
+
+       scan_cfg = kzalloc(sizeof(struct lbs_ioctl_user_scan_cfg), GFP_KERNEL);
+       if (!scan_cfg) {
+               res = -ENOMEM;
+               goto out_buf;
+       }
+       res = count;
+
+       scan_cfg->bsstype = LBS_SCAN_BSS_TYPE_ANY;
+
+       dur = lbs_parse_dur(buf, count, scan_cfg);
+       lbs_parse_bssid(buf, count, scan_cfg);
+       scan_cfg->clear_bssid = lbs_parse_clear(buf, count, "clear_bssid=");
+       lbs_parse_ssid(buf, count, scan_cfg);
+       scan_cfg->clear_ssid = lbs_parse_clear(buf, count, "clear_ssid=");
+       lbs_parse_type(buf, count, scan_cfg);
+
+       lbs_scan_networks(priv, scan_cfg, 1);
+       wait_event_interruptible(priv->cmd_pending,
+                                priv->surpriseremoved || !priv->last_scanned_channel);
+
+       if (priv->surpriseremoved)
+               goto out_scan_cfg;
+
+       memset(&wrqu, 0x00, sizeof(union iwreq_data));
+       wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
+
+ out_scan_cfg:
+       kfree(scan_cfg);
+ out_buf:
+       free_page((unsigned long)buf);
+       return res;
+}
+
+
+/*
+ * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
+ * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
+ * firmware. Here's an example:
+ *     04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
+ *     00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
+ *     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ *
+ * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
+ * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
+ * defined in mrvlietypes_thresholds
+ *
+ * This function searches in this TLV data chunk for a given TLV type
+ * and returns a pointer to the first data byte of the TLV, or to NULL
+ * if the TLV hasn't been found.
+ */
+static void *lbs_tlv_find(u16 tlv_type, const u8 *tlv, u16 size)
+{
+       __le16 le_type = cpu_to_le16(tlv_type);
+       ssize_t pos = 0;
+       struct mrvlietypesheader *tlv_h;
+       while (pos < size) {
+               u16 length;
+               tlv_h = (struct mrvlietypesheader *) tlv;
+               if (tlv_h->type == le_type)
+                       return tlv_h;
+               if (tlv_h->len == 0)
+                       return NULL;
+               length = le16_to_cpu(tlv_h->len) +
+                       sizeof(struct mrvlietypesheader);
+               pos += length;
+               tlv += length;
+       }
+       return NULL;
+}
+
+
+/*
+ * This just gets the bitmap of currently subscribed events. Used when
+ * adding an additonal event subscription.
+ */
+static u16 lbs_get_events_bitmap(struct lbs_private *priv)
+{
+       ssize_t res;
+
+       struct cmd_ds_802_11_subscribe_event *events = kzalloc(
+               sizeof(struct cmd_ds_802_11_subscribe_event),
+               GFP_KERNEL);
+
+       res = lbs_prepare_and_send_command(priv,
+                       CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_GET,
+                       CMD_OPTION_WAITFORRSP, 0, events);
+
+       if (res) {
+               kfree(events);
+               return 0;
+       }
+       return le16_to_cpu(events->events);
+}
+
+
+static ssize_t lbs_threshold_read(
+       u16 tlv_type, u16 event_mask,
+       struct file *file, char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       ssize_t res = 0;
+       size_t pos = 0;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+       u8 value;
+       u8 freq;
+       int events = 0;
+
+       struct cmd_ds_802_11_subscribe_event *subscribed = kzalloc(
+               sizeof(struct cmd_ds_802_11_subscribe_event),
+               GFP_KERNEL);
+       struct mrvlietypes_thresholds *got;
+
+       res = lbs_prepare_and_send_command(priv,
+                       CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_GET,
+                       CMD_OPTION_WAITFORRSP, 0, subscribed);
+       if (res) {
+               kfree(subscribed);
+               return res;
+       }
+
+       got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv));
+       if (got) {
+               value = got->value;
+               freq  = got->freq;
+               events = le16_to_cpu(subscribed->events);
+       }
+       kfree(subscribed);
+
+       if (got)
+               pos += snprintf(buf, len, "%d %d %d\n", value, freq,
+                       !!(events & event_mask));
+
+       res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+       free_page(addr);
+       return res;
+}
+
+
+static ssize_t lbs_threshold_write(
+       u16 tlv_type, u16 event_mask,
+       struct file *file,
+       const char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       ssize_t res, buf_size;
+       int value, freq, curr_mask, new_mask;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+       struct cmd_ds_802_11_subscribe_event *events;
+
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, userbuf, buf_size)) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       res = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
+       if (res != 3) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       curr_mask = lbs_get_events_bitmap(priv);
+
+       if (new_mask)
+               new_mask = curr_mask | event_mask;
+       else
+               new_mask = curr_mask & ~event_mask;
+
+       /* Now everything is set and we can send stuff down to the firmware */
+       events = kzalloc(
+               sizeof(struct cmd_ds_802_11_subscribe_event),
+               GFP_KERNEL);
+       if (events) {
+               struct mrvlietypes_thresholds *tlv =
+                       (struct mrvlietypes_thresholds *) events->tlv;
+               events->action = cpu_to_le16(CMD_ACT_SET);
+               events->events = cpu_to_le16(new_mask);
+               tlv->header.type = cpu_to_le16(tlv_type);
+               tlv->header.len = cpu_to_le16(
+                       sizeof(struct mrvlietypes_thresholds) -
+                       sizeof(struct mrvlietypesheader));
+               tlv->value = value;
+               if (tlv_type != TLV_TYPE_BCNMISS)
+                       tlv->freq = freq;
+               lbs_prepare_and_send_command(priv,
+                       CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_SET,
+                       CMD_OPTION_WAITFORRSP, 0, events);
+               kfree(events);
+       }
+
+       res = count;
+out_unlock:
+       free_page(addr);
+       return res;
+}
+
+
+static ssize_t lbs_lowrssi_read(
+       struct file *file, char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_lowrssi_write(
+       struct file *file, const char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_lowsnr_read(
+       struct file *file, char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_lowsnr_write(
+       struct file *file, const char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_failcount_read(
+       struct file *file, char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_failcount_write(
+       struct file *file, const char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_highrssi_read(
+       struct file *file, char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_highrssi_write(
+       struct file *file, const char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_highsnr_read(
+       struct file *file, char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_highsnr_write(
+       struct file *file, const char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
+               file, userbuf, count, ppos);
+}
+
+static ssize_t lbs_bcnmiss_read(
+       struct file *file, char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
+               file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_bcnmiss_write(
+       struct file *file, const char __user *userbuf,
+       size_t count, loff_t *ppos)
+{
+       return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
+               file, userbuf, count, ppos);
+}
+
+
+
+
+
+
+
+
+static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
+                                 size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       struct lbs_offset_value offval;
+       ssize_t pos = 0;
+       int ret;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       offval.offset = priv->mac_offset;
+       offval.value = 0;
+
+       ret = lbs_prepare_and_send_command(priv,
+                               CMD_MAC_REG_ACCESS, 0,
+                               CMD_OPTION_WAITFORRSP, 0, &offval);
+       mdelay(10);
+       pos += snprintf(buf+pos, len-pos, "MAC[0x%x] = 0x%08x\n",
+                               priv->mac_offset, priv->offsetvalue.value);
+
+       ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+       free_page(addr);
+       return ret;
+}
+
+static ssize_t lbs_rdmac_write(struct file *file,
+                                   const char __user *userbuf,
+                                   size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       ssize_t res, buf_size;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, userbuf, buf_size)) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       priv->mac_offset = simple_strtoul((char *)buf, NULL, 16);
+       res = count;
+out_unlock:
+       free_page(addr);
+       return res;
+}
+
+static ssize_t lbs_wrmac_write(struct file *file,
+                                   const char __user *userbuf,
+                                   size_t count, loff_t *ppos)
+{
+
+       struct lbs_private *priv = file->private_data;
+       ssize_t res, buf_size;
+       u32 offset, value;
+       struct lbs_offset_value offval;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, userbuf, buf_size)) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       res = sscanf(buf, "%x %x", &offset, &value);
+       if (res != 2) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+
+       offval.offset = offset;
+       offval.value = value;
+       res = lbs_prepare_and_send_command(priv,
+                               CMD_MAC_REG_ACCESS, 1,
+                               CMD_OPTION_WAITFORRSP, 0, &offval);
+       mdelay(10);
+
+       res = count;
+out_unlock:
+       free_page(addr);
+       return res;
+}
+
+static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
+                                 size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       struct lbs_offset_value offval;
+       ssize_t pos = 0;
+       int ret;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       offval.offset = priv->bbp_offset;
+       offval.value = 0;
+
+       ret = lbs_prepare_and_send_command(priv,
+                               CMD_BBP_REG_ACCESS, 0,
+                               CMD_OPTION_WAITFORRSP, 0, &offval);
+       mdelay(10);
+       pos += snprintf(buf+pos, len-pos, "BBP[0x%x] = 0x%08x\n",
+                               priv->bbp_offset, priv->offsetvalue.value);
+
+       ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+       free_page(addr);
+
+       return ret;
+}
+
+static ssize_t lbs_rdbbp_write(struct file *file,
+                                   const char __user *userbuf,
+                                   size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       ssize_t res, buf_size;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, userbuf, buf_size)) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       priv->bbp_offset = simple_strtoul((char *)buf, NULL, 16);
+       res = count;
+out_unlock:
+       free_page(addr);
+       return res;
+}
+
+static ssize_t lbs_wrbbp_write(struct file *file,
+                                   const char __user *userbuf,
+                                   size_t count, loff_t *ppos)
+{
+
+       struct lbs_private *priv = file->private_data;
+       ssize_t res, buf_size;
+       u32 offset, value;
+       struct lbs_offset_value offval;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, userbuf, buf_size)) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       res = sscanf(buf, "%x %x", &offset, &value);
+       if (res != 2) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+
+       offval.offset = offset;
+       offval.value = value;
+       res = lbs_prepare_and_send_command(priv,
+                               CMD_BBP_REG_ACCESS, 1,
+                               CMD_OPTION_WAITFORRSP, 0, &offval);
+       mdelay(10);
+
+       res = count;
+out_unlock:
+       free_page(addr);
+       return res;
+}
+
+static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
+                                 size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       struct lbs_offset_value offval;
+       ssize_t pos = 0;
+       int ret;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       offval.offset = priv->rf_offset;
+       offval.value = 0;
+
+       ret = lbs_prepare_and_send_command(priv,
+                               CMD_RF_REG_ACCESS, 0,
+                               CMD_OPTION_WAITFORRSP, 0, &offval);
+       mdelay(10);
+       pos += snprintf(buf+pos, len-pos, "RF[0x%x] = 0x%08x\n",
+                               priv->rf_offset, priv->offsetvalue.value);
+
+       ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+       free_page(addr);
+
+       return ret;
+}
+
+static ssize_t lbs_rdrf_write(struct file *file,
+                                   const char __user *userbuf,
+                                   size_t count, loff_t *ppos)
+{
+       struct lbs_private *priv = file->private_data;
+       ssize_t res, buf_size;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, userbuf, buf_size)) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       priv->rf_offset = simple_strtoul((char *)buf, NULL, 16);
+       res = count;
+out_unlock:
+       free_page(addr);
+       return res;
+}
+
+static ssize_t lbs_wrrf_write(struct file *file,
+                                   const char __user *userbuf,
+                                   size_t count, loff_t *ppos)
+{
+
+       struct lbs_private *priv = file->private_data;
+       ssize_t res, buf_size;
+       u32 offset, value;
+       struct lbs_offset_value offval;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       buf_size = min(count, len - 1);
+       if (copy_from_user(buf, userbuf, buf_size)) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+       res = sscanf(buf, "%x %x", &offset, &value);
+       if (res != 2) {
+               res = -EFAULT;
+               goto out_unlock;
+       }
+
+       offval.offset = offset;
+       offval.value = value;
+       res = lbs_prepare_and_send_command(priv,
+                               CMD_RF_REG_ACCESS, 1,
+                               CMD_OPTION_WAITFORRSP, 0, &offval);
+       mdelay(10);
+
+       res = count;
+out_unlock:
+       free_page(addr);
+       return res;
+}
+
+#define FOPS(fread, fwrite) { \
+       .owner = THIS_MODULE, \
+       .open = open_file_generic, \
+       .read = (fread), \
+       .write = (fwrite), \
+}
+
+struct lbs_debugfs_files {
+       char *name;
+       int perm;
+       struct file_operations fops;
+};
+
+static struct lbs_debugfs_files debugfs_files[] = {
+       { "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
+       { "getscantable", 0444, FOPS(lbs_getscantable,
+                                       write_file_dummy), },
+       { "sleepparams", 0644, FOPS(lbs_sleepparams_read,
+                               lbs_sleepparams_write), },
+       { "extscan", 0600, FOPS(NULL, lbs_extscan), },
+       { "setuserscan", 0600, FOPS(NULL, lbs_setuserscan), },
+};
+
+static struct lbs_debugfs_files debugfs_events_files[] = {
+       {"low_rssi", 0644, FOPS(lbs_lowrssi_read,
+                               lbs_lowrssi_write), },
+       {"low_snr", 0644, FOPS(lbs_lowsnr_read,
+                               lbs_lowsnr_write), },
+       {"failure_count", 0644, FOPS(lbs_failcount_read,
+                               lbs_failcount_write), },
+       {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read,
+                               lbs_bcnmiss_write), },
+       {"high_rssi", 0644, FOPS(lbs_highrssi_read,
+                               lbs_highrssi_write), },
+       {"high_snr", 0644, FOPS(lbs_highsnr_read,
+                               lbs_highsnr_write), },
+};
+
+static struct lbs_debugfs_files debugfs_regs_files[] = {
+       {"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
+       {"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
+       {"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
+       {"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), },
+       {"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), },
+       {"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), },
+};
+
+void lbs_debugfs_init(void)
+{
+       if (!lbs_dir)
+               lbs_dir = debugfs_create_dir("lbs_wireless", NULL);
+
+       return;
+}
+
+void lbs_debugfs_remove(void)
+{
+       if (lbs_dir)
+                debugfs_remove(lbs_dir);
+       return;
+}
+
+void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
+{
+       int i;
+       struct lbs_debugfs_files *files;
+       if (!lbs_dir)
+               goto exit;
+
+       priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir);
+       if (!priv->debugfs_dir)
+               goto exit;
+
+       for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
+               files = &debugfs_files[i];
+               priv->debugfs_files[i] = debugfs_create_file(files->name,
+                                                            files->perm,
+                                                            priv->debugfs_dir,
+                                                            priv,
+                                                            &files->fops);
+       }
+
+       priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
+       if (!priv->events_dir)
+               goto exit;
+
+       for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
+               files = &debugfs_events_files[i];
+               priv->debugfs_events_files[i] = debugfs_create_file(files->name,
+                                                            files->perm,
+                                                            priv->events_dir,
+                                                            priv,
+                                                            &files->fops);
+       }
+
+       priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
+       if (!priv->regs_dir)
+               goto exit;
+
+       for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
+               files = &debugfs_regs_files[i];
+               priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
+                                                            files->perm,
+                                                            priv->regs_dir,
+                                                            priv,
+                                                            &files->fops);
+       }
+
+#ifdef PROC_DEBUG
+       lbs_debug_init(priv, dev);
+#endif
+exit:
+       return;
+}
+
+void lbs_debugfs_remove_one(struct lbs_private *priv)
+{
+       int i;
+
+       for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
+               debugfs_remove(priv->debugfs_regs_files[i]);
+
+       debugfs_remove(priv->regs_dir);
+
+       for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
+               debugfs_remove(priv->debugfs_events_files[i]);
+
+       debugfs_remove(priv->events_dir);
+#ifdef PROC_DEBUG
+       debugfs_remove(priv->debugfs_debug);
+#endif
+       for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
+               debugfs_remove(priv->debugfs_files[i]);
+       debugfs_remove(priv->debugfs_dir);
+}
+
+
+
+/* debug entry */
+
+#ifdef PROC_DEBUG
+
+#define item_size(n)   (FIELD_SIZEOF(struct lbs_private, n))
+#define item_addr(n)   (offsetof(struct lbs_private, n))
+
+
+struct debug_data {
+       char name[32];
+       u32 size;
+       size_t addr;
+};
+
+/* To debug any member of struct lbs_private, simply add one line here.
+ */
+static struct debug_data items[] = {
+       {"intcounter", item_size(intcounter), item_addr(intcounter)},
+       {"psmode", item_size(psmode), item_addr(psmode)},
+       {"psstate", item_size(psstate), item_addr(psstate)},
+};
+
+static int num_of_items = ARRAY_SIZE(items);
+
+/**
+ *  @brief proc read function
+ *
+ *  @param page           pointer to buffer
+ *  @param s       read data starting position
+ *  @param off     offset
+ *  @param cnt     counter
+ *  @param eof     end of file flag
+ *  @param data    data to output
+ *  @return       number of output data
+ */
+static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf,
+                       size_t count, loff_t *ppos)
+{
+       int val = 0;
+       size_t pos = 0;
+       ssize_t res;
+       char *p;
+       int i;
+       struct debug_data *d;
+       unsigned long addr = get_zeroed_page(GFP_KERNEL);
+       char *buf = (char *)addr;
+
+       p = buf;
+
+       d = (struct debug_data *)file->private_data;
+
+       for (i = 0; i < num_of_items; i++) {
+               if (d[i].size == 1)
+                       val = *((u8 *) d[i].addr);
+               else if (d[i].size == 2)
+                       val = *((u16 *) d[i].addr);
+               else if (d[i].size == 4)
+                       val = *((u32 *) d[i].addr);
+               else if (d[i].size == 8)
+                       val = *((u64 *) d[i].addr);
+
+               pos += sprintf(p + pos, "%s=%d\n", d[i].name, val);
+       }
+
+       res = simple_read_from_buffer(userbuf, count, ppos, p, pos);
+
+       free_page(addr);
+       return res;
+}
+
+/**
+ *  @brief proc write function
+ *
+ *  @param f      file pointer
+ *  @param buf     pointer to data buffer
+ *  @param cnt     data number to write
+ *  @param data    data to write
+ *  @return       number of data
+ */
+static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
+                           size_t cnt, loff_t *ppos)
+{
+       int r, i;
+       char *pdata;
+       char *p;
+       char *p0;
+       char *p1;
+       char *p2;
+       struct debug_data *d = (struct debug_data *)f->private_data;
+
+       pdata = kmalloc(cnt, GFP_KERNEL);
+       if (pdata == NULL)
+               return 0;
+
+       if (copy_from_user(pdata, buf, cnt)) {
+               lbs_deb_debugfs("Copy from user failed\n");
+               kfree(pdata);
+               return 0;
+       }
+
+       p0 = pdata;
+       for (i = 0; i < num_of_items; i++) {
+               do {
+                       p = strstr(p0, d[i].name);
+                       if (p == NULL)
+                               break;
+                       p1 = strchr(p, '\n');
+                       if (p1 == NULL)
+                               break;
+                       p0 = p1++;
+                       p2 = strchr(p, '=');
+                       if (!p2)
+                               break;
+                       p2++;
+                       r = simple_strtoul(p2, NULL, 0);
+                       if (d[i].size == 1)
+                               *((u8 *) d[i].addr) = (u8) r;
+                       else if (d[i].size == 2)
+                               *((u16 *) d[i].addr) = (u16) r;
+                       else if (d[i].size == 4)
+                               *((u32 *) d[i].addr) = (u32) r;
+                       else if (d[i].size == 8)
+                               *((u64 *) d[i].addr) = (u64) r;
+                       break;
+               } while (1);
+       }
+       kfree(pdata);
+
+       return (ssize_t)cnt;
+}
+
+static struct file_operations lbs_debug_fops = {
+       .owner = THIS_MODULE,
+       .open = open_file_generic,
+       .write = lbs_debugfs_write,
+       .read = lbs_debugfs_read,
+};
+
+/**
+ *  @brief create debug proc file
+ *
+ *  @param priv           pointer struct lbs_private
+ *  @param dev     pointer net_device
+ *  @return       N/A
+ */
+static void lbs_debug_init(struct lbs_private *priv, struct net_device *dev)
+{
+       int i;
+
+       if (!priv->debugfs_dir)
+               return;
+
+       for (i = 0; i < num_of_items; i++)
+               items[i].addr += (size_t) priv;
+
+       priv->debugfs_debug = debugfs_create_file("debug", 0644,
+                                                 priv->debugfs_dir, &items[0],
+                                                 &lbs_debug_fops);
+}
+#endif