[PATCH] Marvell Libertas 8388 802.11b/g USB driver

Add the Marvell Libertas 8388 802.11 USB driver.

Signed-off-by: Marcelo Tosatti <marcelo@kvack.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1968 insertions, 0 deletions

diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
new file mode 100644
index 000000000000..3ad1e0339ed0
--- /dev/null
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -0,0 +1,1968 @@
+#include <linux/module.h>
+#include <linux/dcache.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/mm.h>
+#include <net/iw_handler.h>
+#include "dev.h"
+#include "decl.h"
+#include "host.h"
+
+static struct dentry *libertas_dir = NULL;
+static char *szStates[] = {
+        "Connected",
+        "Disconnected"
+};
+
+void libertas_debug_init(wlan_private * priv, struct net_device *dev);
+
+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 libertas_dev_info(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_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->adapter->connect_status]);
+        pos += snprintf(buf+pos, len-pos, "region_code = %02x\n",
+                                (u32) priv->adapter->regioncode);
+
+        res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+        free_page(addr);
+        return res;
+}
+
+
+static ssize_t libertas_getscantable(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_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;
+
+        pos += snprintf(buf+pos, len-pos,
+                        "---------------------------------------");
+        pos += snprintf(buf+pos, len-pos,
+                        "---------------------------------------\n");
+        pos += snprintf(buf+pos, len-pos,
+                "# | ch  | ss  |       bssid       |   cap    |    TSF   | Qual | SSID \n");
+        pos += snprintf(buf+pos, len-pos,
+                "---------------------------------------");
+        pos += snprintf(buf+pos, len-pos,
+                "---------------------------------------\n");
+
+        while (numscansdone < priv->adapter->numinscantable) {
+                struct bss_descriptor *pbssinfo;
+                u16 cap;
+
+                pbssinfo = &priv->adapter->scantable[numscansdone];
+                memcpy(&cap, &pbssinfo->cap, sizeof(cap));
+                pos += snprintf(buf+pos, len-pos,
+                        "%02u| %03d | %03ld | %02x:%02x:%02x:%02x:%02x:%02x |",
+                        numscansdone, pbssinfo->channel, pbssinfo->rssi,
+                        pbssinfo->macaddress[0], pbssinfo->macaddress[1],
+                        pbssinfo->macaddress[2], pbssinfo->macaddress[3],
+                        pbssinfo->macaddress[4], pbssinfo->macaddress[5]);
+                pos += snprintf(buf+pos, len-pos, " %04x-", cap);
+                pos += snprintf(buf+pos, len-pos, "%c%c%c |",
+                                pbssinfo->cap.ibss ? 'A' : 'I',
+                                pbssinfo->cap.privacy ? 'P' : ' ',
+                                pbssinfo->cap.spectrummgmt ? 'S' : ' ');
+                pos += snprintf(buf+pos, len-pos, " %08llx |", pbssinfo->networktsf);
+                pos += snprintf(buf+pos, len-pos, " %d |",
+                        SCAN_RSSI(priv->adapter->scantable[numscansdone].rssi));
+
+                pos += snprintf(buf+pos, len-pos, " %s\n", pbssinfo->ssid.ssid);
+
+                numscansdone++;
+        }
+
+        res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_sleepparams_write(struct file *file,
+                                const char __user *user_buf, size_t count,
+                                loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        ssize_t buf_size, res;
+        int p1, p2, p3, p4, p5, p6;
+        struct sleep_params sp;
+        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;
+        }
+        sp.sp_error = p1;
+        sp.sp_offset = p2;
+        sp.sp_stabletime = p3;
+        sp.sp_calcontrol = p4;
+        sp.sp_extsleepclk = p5;
+        sp.sp_reserved = p6;
+
+        memcpy(&priv->adapter->sp, &sp, sizeof(struct sleep_params));
+
+        res = libertas_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 libertas_sleepparams_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        ssize_t res;
+        size_t pos = 0;
+        unsigned long addr = get_zeroed_page(GFP_KERNEL);
+        char *buf = (char *)addr;
+
+        res = libertas_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", adapter->sp.sp_error,
+                        adapter->sp.sp_offset, adapter->sp.sp_stabletime,
+                        adapter->sp.sp_calcontrol, adapter->sp.sp_extsleepclk,
+                        adapter->sp.sp_reserved);
+
+        res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+out_unlock:
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_extscan(struct file *file, const char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        ssize_t res, buf_size;
+        struct WLAN_802_11_SSID extscan_ssid;
+        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;
+        }
+
+        memcpy(&extscan_ssid.ssid, buf, strlen(buf)-1);
+        extscan_ssid.ssidlength = strlen(buf)-1;
+
+        libertas_send_specific_SSID_scan(priv, &extscan_ssid, 1);
+
+        memset(&wrqu, 0, sizeof(union iwreq_data));
+        wireless_send_event(priv->wlan_dev.netdev, SIOCGIWSCAN, &wrqu, NULL);
+
+out_unlock:
+        free_page(addr);
+        return count;
+}
+
+static int libertas_parse_chan(char *buf, size_t count,
+                        struct wlan_ioctl_user_scan_cfg *scan_cfg, int dur)
+{
+        char *start, *end, *hold, *str;
+        int i = 0;
+
+        start = strstr(buf, "chan=");
+        if (!start)
+                return -EINVAL;
+        start += 5;
+        end = strstr(start, " ");
+        if (!end)
+                end = buf + count;
+        hold = kzalloc((end - start)+1, GFP_KERNEL);
+        if (!hold)
+                return -ENOMEM;
+        strncpy(hold, start, end - start);
+        hold[(end-start)+1] = '\0';
+        while(hold && (str = strsep(&hold, ","))) {
+                int chan;
+                char band, passive = 0;
+                sscanf(str, "%d%c%c", &chan, &band, &passive);
+                scan_cfg->chanlist[i].channumber = chan;
+                scan_cfg->chanlist[i].scantype = passive ? 1 : 0;
+                if (band == 'b' || band == 'g')
+                        scan_cfg->chanlist[i].radiotype = 0;
+                else if (band == 'a')
+                        scan_cfg->chanlist[i].radiotype = 1;
+
+                scan_cfg->chanlist[i].scantime = dur;
+                i++;
+        }
+
+        kfree(hold);
+        return i;
+}
+
+static void libertas_parse_bssid(char *buf, size_t count,
+                        struct wlan_ioctl_user_scan_cfg *scan_cfg)
+{
+        char *hold;
+        unsigned int mac[ETH_ALEN];
+        int i;
+
+        hold = strstr(buf, "bssid=");
+        if (!hold)
+                return;
+        hold += 6;
+        sscanf(hold, "%2x:%2x:%2x:%2x:%2x:%2x", mac, mac+1, mac+2, mac+3,
+                        mac+4, mac+5);
+        for(i=0;i<ETH_ALEN;i++)
+                scan_cfg->specificBSSID[i] = mac[i];
+}
+
+static void libertas_parse_ssid(char *buf, size_t count,
+                        struct wlan_ioctl_user_scan_cfg *scan_cfg)
+{
+        char *hold, *end;
+        ssize_t size;
+
+        hold = strstr(buf, "ssid=");
+        if (!hold)
+                return;
+        hold += 5;
+        end = strstr(hold, " ");
+        if (!end)
+                end = buf + count - 1;
+
+        size = min(IW_ESSID_MAX_SIZE, end - hold);
+        strncpy(scan_cfg->specificSSID, hold, size);
+
+        return;
+}
+
+static void libertas_parse_keep(char *buf, size_t count,
+                        struct wlan_ioctl_user_scan_cfg *scan_cfg)
+{
+        char *hold;
+        int val;
+
+        hold = strstr(buf, "keep=");
+        if (!hold)
+                return;
+        hold += 5;
+        sscanf(hold, "%d", &val);
+
+        if (val != 0)
+                val = 1;
+
+        scan_cfg->keeppreviousscan = val;
+        return;
+}
+
+static int libertas_parse_dur(char *buf, size_t count,
+                        struct wlan_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 libertas_parse_probes(char *buf, size_t count,
+                        struct wlan_ioctl_user_scan_cfg *scan_cfg)
+{
+        char *hold;
+        int val;
+
+        hold = strstr(buf, "probes=");
+        if (!hold)
+                return;
+        hold += 7;
+        sscanf(hold, "%d", &val);
+
+        scan_cfg->numprobes = val;
+
+        return;
+}
+
+static void libertas_parse_type(char *buf, size_t count,
+                        struct wlan_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 libertas_setuserscan(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        ssize_t res, buf_size;
+        struct wlan_ioctl_user_scan_cfg *scan_cfg;
+        union iwreq_data wrqu;
+        int dur;
+        unsigned long addr = get_zeroed_page(GFP_KERNEL);
+        char *buf = (char *)addr;
+
+        scan_cfg = kzalloc(sizeof(struct wlan_ioctl_user_scan_cfg), GFP_KERNEL);
+        if (!scan_cfg)
+                return -ENOMEM;
+
+        buf_size = min(count, len - 1);
+        if (copy_from_user(buf, userbuf, buf_size)) {
+                res = -EFAULT;
+                goto out_unlock;
+        }
+
+        scan_cfg->bsstype = WLAN_SCAN_BSS_TYPE_ANY;
+
+        dur = libertas_parse_dur(buf, count, scan_cfg);
+        libertas_parse_chan(buf, count, scan_cfg, dur);
+        libertas_parse_bssid(buf, count, scan_cfg);
+        libertas_parse_ssid(buf, count, scan_cfg);
+        libertas_parse_keep(buf, count, scan_cfg);
+        libertas_parse_probes(buf, count, scan_cfg);
+        libertas_parse_type(buf, count, scan_cfg);
+
+        wlan_scan_networks(priv, scan_cfg);
+        wait_event_interruptible(priv->adapter->cmd_pending,
+                                 !priv->adapter->nr_cmd_pending);
+
+        memset(&wrqu, 0x00, sizeof(union iwreq_data));
+        wireless_send_event(priv->wlan_dev.netdev, SIOCGIWSCAN, &wrqu, NULL);
+
+out_unlock:
+        free_page(addr);
+        kfree(scan_cfg);
+        return count;
+}
+
+static int libertas_event_initcmd(wlan_private *priv, void **response_buf,
+                        struct cmd_ctrl_node **cmdnode,
+                        struct cmd_ds_command **cmd)
+{
+        u16 wait_option = cmd_option_waitforrsp;
+
+        if (!(*cmdnode = libertas_get_free_cmd_ctrl_node(priv))) {
+                lbs_pr_debug(1, "failed libertas_get_free_cmd_ctrl_node\n");
+                return -ENOMEM;
+        }
+        if (!(*response_buf = kmalloc(3000, GFP_KERNEL))) {
+                lbs_pr_debug(1, "failed to allocate response buffer!\n");
+                return -ENOMEM;
+        }
+        libertas_set_cmd_ctrl_node(priv, *cmdnode, 0, wait_option, NULL);
+        init_waitqueue_head(&(*cmdnode)->cmdwait_q);
+        (*cmdnode)->pdata_buf = *response_buf;
+        (*cmdnode)->cmdflags |= CMD_F_HOSTCMD;
+        (*cmdnode)->cmdwaitqwoken = 0;
+        *cmd = (struct cmd_ds_command *)(*cmdnode)->bufvirtualaddr;
+        (*cmd)->command = cmd_802_11_subscribe_event;
+        (*cmd)->seqnum = ++priv->adapter->seqnum;
+        (*cmd)->result = 0;
+        return 0;
+}
+
+static ssize_t libertas_lowrssi_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        void *response_buf;
+        int res, cmd_len;
+        ssize_t pos = 0;
+        unsigned long addr = get_zeroed_page(GFP_KERNEL);
+        char *buf = (char *)addr;
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0) {
+                free_page(addr);
+                return res;
+        }
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_get;
+        pcmdptr->size =
+        cpu_to_le16(sizeof(struct cmd_ds_802_11_subscribe_event) + S_DS_GEN);
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        event = (struct cmd_ds_802_11_subscribe_event *)(response_buf + S_DS_GEN);
+        while (cmd_len < pcmdptr->size) {
+                struct mrvlietypesheader *header = (struct mrvlietypesheader *)(response_buf + cmd_len);
+                switch(header->type) {
+                struct mrvlietypes_rssithreshold  *Lowrssi;
+                case TLV_TYPE_RSSI_LOW:
+                Lowrssi = (struct mrvlietypes_rssithreshold *)(response_buf + cmd_len);
+                pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
+                                Lowrssi->rssivalue,
+                                Lowrssi->rssifreq,
+                                (event->events & 0x0001)?1:0);
+                default:
+                        cmd_len += sizeof(struct mrvlietypes_snrthreshold);
+                        break;
+                }
+        }
+
+        kfree(response_buf);
+        res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        free_page(addr);
+        return res;
+}
+
+static u16 libertas_get_events_bitmap(wlan_private *priv)
+{
+        wlan_adapter *adapter = priv->adapter;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        void *response_buf;
+        int res;
+        u16 event_bitmap;
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0)
+                return res;
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_get;
+        pcmdptr->size =
+        cpu_to_le16(sizeof(struct cmd_ds_802_11_subscribe_event) + S_DS_GEN);
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                return 0;
+        }
+
+        event = (struct cmd_ds_802_11_subscribe_event *)(response_buf + S_DS_GEN);
+        event_bitmap = event->events;
+        kfree(response_buf);
+        return event_bitmap;
+}
+
+static ssize_t libertas_lowrssi_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        ssize_t res, buf_size;
+        int value, freq, subscribed, cmd_len;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        struct mrvlietypes_rssithreshold *rssi_threshold;
+        void *response_buf;
+        u16 event_bitmap;
+        u8 *ptr;
+        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, "%d %d %d", &value, &freq, &subscribed);
+        if (res != 3) {
+                res = -EFAULT;
+                goto out_unlock;
+        }
+
+        event_bitmap = libertas_get_events_bitmap(priv);
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0)
+                goto out_unlock;
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_set;
+        pcmdptr->size = cpu_to_le16(S_DS_GEN +
+                sizeof(struct cmd_ds_802_11_subscribe_event) +
+                sizeof(struct mrvlietypes_rssithreshold));
+
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        ptr = (u8*) pcmdptr+cmd_len;
+        rssi_threshold = (struct mrvlietypes_rssithreshold *)(ptr);
+        rssi_threshold->header.type = cpu_to_le16(0x0104);
+        rssi_threshold->header.len = 2;
+        rssi_threshold->rssivalue = cpu_to_le16(value);
+        rssi_threshold->rssifreq = cpu_to_le16(freq);
+        event_bitmap |= subscribed ? 0x0001 : 0x0;
+        event->events = event_bitmap;
+
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        res = count;
+out_unlock:
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_lowsnr_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        void *response_buf;
+        int res, cmd_len;
+        ssize_t pos = 0;
+        unsigned long addr = get_zeroed_page(GFP_KERNEL);
+        char *buf = (char *)addr;
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0) {
+                free_page(addr);
+                return res;
+        }
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_get;
+        pcmdptr->size =
+        cpu_to_le16(sizeof(struct cmd_ds_802_11_subscribe_event) + S_DS_GEN);
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        event = (struct cmd_ds_802_11_subscribe_event *)(response_buf + S_DS_GEN);
+        while (cmd_len < pcmdptr->size) {
+                struct mrvlietypesheader *header = (struct mrvlietypesheader *)(response_buf + cmd_len);
+                switch(header->type) {
+                struct mrvlietypes_snrthreshold *LowSnr;
+                case TLV_TYPE_SNR_LOW:
+                LowSnr = (struct mrvlietypes_snrthreshold *)(response_buf + cmd_len);
+                pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
+                                LowSnr->snrvalue,
+                                LowSnr->snrfreq,
+                                (event->events & 0x0002)?1:0);
+                default:
+                        cmd_len += sizeof(struct mrvlietypes_snrthreshold);
+                        break;
+                }
+        }
+
+        kfree(response_buf);
+
+        res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_lowsnr_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        ssize_t res, buf_size;
+        int value, freq, subscribed, cmd_len;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        struct mrvlietypes_snrthreshold *snr_threshold;
+        void *response_buf;
+        u16 event_bitmap;
+        u8 *ptr;
+        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, "%d %d %d", &value, &freq, &subscribed);
+        if (res != 3) {
+                res = -EFAULT;
+                goto out_unlock;
+        }
+
+        event_bitmap = libertas_get_events_bitmap(priv);
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0)
+                goto out_unlock;
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_set;
+        pcmdptr->size = cpu_to_le16(S_DS_GEN +
+                sizeof(struct cmd_ds_802_11_subscribe_event) +
+                sizeof(struct mrvlietypes_snrthreshold));
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        ptr = (u8*) pcmdptr+cmd_len;
+        snr_threshold = (struct mrvlietypes_snrthreshold *)(ptr);
+        snr_threshold->header.type = cpu_to_le16(TLV_TYPE_SNR_LOW);
+        snr_threshold->header.len = 2;
+        snr_threshold->snrvalue = cpu_to_le16(value);
+        snr_threshold->snrfreq = cpu_to_le16(freq);
+        event_bitmap |= subscribed ? 0x0002 : 0x0;
+        event->events = event_bitmap;
+
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        res = count;
+
+out_unlock:
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_failcount_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        void *response_buf;
+        int res, cmd_len;
+        ssize_t pos = 0;
+        unsigned long addr = get_zeroed_page(GFP_KERNEL);
+        char *buf = (char *)addr;
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0) {
+                free_page(addr);
+                return res;
+        }
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_get;
+        pcmdptr->size =
+        cpu_to_le16(sizeof(struct cmd_ds_802_11_subscribe_event) + S_DS_GEN);
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        event = (struct cmd_ds_802_11_subscribe_event *)(response_buf + S_DS_GEN);
+        while (cmd_len < pcmdptr->size) {
+                struct mrvlietypesheader *header = (struct mrvlietypesheader *)(response_buf + cmd_len);
+                switch(header->type) {
+                struct mrvlietypes_failurecount *failcount;
+                case TLV_TYPE_FAILCOUNT:
+                failcount = (struct mrvlietypes_failurecount *)(response_buf + cmd_len);
+                pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
+                                failcount->failvalue,
+                                failcount->Failfreq,
+                                (event->events & 0x0004)?1:0);
+                default:
+                        cmd_len += sizeof(struct mrvlietypes_failurecount);
+                        break;
+                }
+        }
+
+        kfree(response_buf);
+        res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_failcount_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        ssize_t res, buf_size;
+        int value, freq, subscribed, cmd_len;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        struct mrvlietypes_failurecount *failcount;
+        void *response_buf;
+        u16 event_bitmap;
+        u8 *ptr;
+        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, "%d %d %d", &value, &freq, &subscribed);
+        if (res != 3) {
+                res = -EFAULT;
+                goto out_unlock;
+        }
+
+        event_bitmap = libertas_get_events_bitmap(priv);
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0)
+                goto out_unlock;
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_set;
+        pcmdptr->size = cpu_to_le16(S_DS_GEN +
+                sizeof(struct cmd_ds_802_11_subscribe_event) +
+                sizeof(struct mrvlietypes_failurecount));
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        ptr = (u8*) pcmdptr+cmd_len;
+        failcount = (struct mrvlietypes_failurecount *)(ptr);
+        failcount->header.type = cpu_to_le16(TLV_TYPE_FAILCOUNT);
+        failcount->header.len = 2;
+        failcount->failvalue = cpu_to_le16(value);
+        failcount->Failfreq = cpu_to_le16(freq);
+        event_bitmap |= subscribed ? 0x0004 : 0x0;
+        event->events = event_bitmap;
+
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = (struct cmd_ds_command *)response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        res = count;
+out_unlock:
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_bcnmiss_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        void *response_buf;
+        int res, cmd_len;
+        ssize_t pos = 0;
+        unsigned long addr = get_zeroed_page(GFP_KERNEL);
+        char *buf = (char *)addr;
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0) {
+                free_page(addr);
+                return res;
+        }
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_get;
+        pcmdptr->size =
+        cpu_to_le16(sizeof(struct cmd_ds_802_11_subscribe_event) + S_DS_GEN);
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                free_page(addr);
+                kfree(response_buf);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                free_page(addr);
+                kfree(response_buf);
+                return 0;
+        }
+
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        event = (struct cmd_ds_802_11_subscribe_event *)(response_buf + S_DS_GEN);
+        while (cmd_len < pcmdptr->size) {
+                struct mrvlietypesheader *header = (struct mrvlietypesheader *)(response_buf + cmd_len);
+                switch(header->type) {
+                struct mrvlietypes_beaconsmissed *bcnmiss;
+                case TLV_TYPE_BCNMISS:
+                bcnmiss = (struct mrvlietypes_beaconsmissed *)(response_buf + cmd_len);
+                pos += snprintf(buf+pos, len-pos, "%d N/A %d\n",
+                                bcnmiss->beaconmissed,
+                                (event->events & 0x0008)?1:0);
+                default:
+                        cmd_len += sizeof(struct mrvlietypes_beaconsmissed);
+                        break;
+                }
+        }
+
+        kfree(response_buf);
+
+        res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_bcnmiss_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        ssize_t res, buf_size;
+        int value, freq, subscribed, cmd_len;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        struct mrvlietypes_beaconsmissed *bcnmiss;
+        void *response_buf;
+        u16 event_bitmap;
+        u8 *ptr;
+        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, "%d %d %d", &value, &freq, &subscribed);
+        if (res != 3) {
+                res = -EFAULT;
+                goto out_unlock;
+        }
+
+        event_bitmap = libertas_get_events_bitmap(priv);
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0)
+                goto out_unlock;
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_set;
+        pcmdptr->size = cpu_to_le16(S_DS_GEN +
+                sizeof(struct cmd_ds_802_11_subscribe_event) +
+                sizeof(struct mrvlietypes_beaconsmissed));
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        ptr = (u8*) pcmdptr+cmd_len;
+        bcnmiss = (struct mrvlietypes_beaconsmissed *)(ptr);
+        bcnmiss->header.type = cpu_to_le16(TLV_TYPE_BCNMISS);
+        bcnmiss->header.len = 2;
+        bcnmiss->beaconmissed = cpu_to_le16(value);
+        event_bitmap |= subscribed ? 0x0008 : 0x0;
+        event->events = event_bitmap;
+
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                free_page(addr);
+                kfree(response_buf);
+                return 0;
+        }
+
+        res = count;
+out_unlock:
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_highrssi_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        void *response_buf;
+        int res, cmd_len;
+        ssize_t pos = 0;
+        unsigned long addr = get_zeroed_page(GFP_KERNEL);
+        char *buf = (char *)addr;
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0) {
+                free_page(addr);
+                return res;
+        }
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_get;
+        pcmdptr->size =
+        cpu_to_le16(sizeof(struct cmd_ds_802_11_subscribe_event) + S_DS_GEN);
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        event = (struct cmd_ds_802_11_subscribe_event *)(response_buf + S_DS_GEN);
+        while (cmd_len < pcmdptr->size) {
+                struct mrvlietypesheader *header = (struct mrvlietypesheader *)(response_buf + cmd_len);
+                switch(header->type) {
+                struct mrvlietypes_rssithreshold  *Highrssi;
+                case TLV_TYPE_RSSI_HIGH:
+                Highrssi = (struct mrvlietypes_rssithreshold *)(response_buf + cmd_len);
+                pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
+                                Highrssi->rssivalue,
+                                Highrssi->rssifreq,
+                                (event->events & 0x0010)?1:0);
+                default:
+                        cmd_len += sizeof(struct mrvlietypes_snrthreshold);
+                        break;
+                }
+        }
+
+        kfree(response_buf);
+
+        res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_highrssi_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        ssize_t res, buf_size;
+        int value, freq, subscribed, cmd_len;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        struct mrvlietypes_rssithreshold *rssi_threshold;
+        void *response_buf;
+        u16 event_bitmap;
+        u8 *ptr;
+        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, "%d %d %d", &value, &freq, &subscribed);
+        if (res != 3) {
+                res = -EFAULT;
+                goto out_unlock;
+        }
+
+        event_bitmap = libertas_get_events_bitmap(priv);
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0)
+                goto out_unlock;
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_set;
+        pcmdptr->size = cpu_to_le16(S_DS_GEN +
+                sizeof(struct cmd_ds_802_11_subscribe_event) +
+                sizeof(struct mrvlietypes_rssithreshold));
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        ptr = (u8*) pcmdptr+cmd_len;
+        rssi_threshold = (struct mrvlietypes_rssithreshold *)(ptr);
+        rssi_threshold->header.type = cpu_to_le16(TLV_TYPE_RSSI_HIGH);
+        rssi_threshold->header.len = 2;
+        rssi_threshold->rssivalue = cpu_to_le16(value);
+        rssi_threshold->rssifreq = cpu_to_le16(freq);
+        event_bitmap |= subscribed ? 0x0010 : 0x0;
+        event->events = event_bitmap;
+
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                return 0;
+        }
+
+        res = count;
+out_unlock:
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_highsnr_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        void *response_buf;
+        int res, cmd_len;
+        ssize_t pos = 0;
+        unsigned long addr = get_zeroed_page(GFP_KERNEL);
+        char *buf = (char *)addr;
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0) {
+                free_page(addr);
+                return res;
+        }
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_get;
+        pcmdptr->size =
+        cpu_to_le16(sizeof(struct cmd_ds_802_11_subscribe_event) + S_DS_GEN);
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        event = (struct cmd_ds_802_11_subscribe_event *)(response_buf + S_DS_GEN);
+        while (cmd_len < pcmdptr->size) {
+                struct mrvlietypesheader *header = (struct mrvlietypesheader *)(response_buf + cmd_len);
+                switch(header->type) {
+                struct mrvlietypes_snrthreshold *HighSnr;
+                case TLV_TYPE_SNR_HIGH:
+                HighSnr = (struct mrvlietypes_snrthreshold *)(response_buf + cmd_len);
+                pos += snprintf(buf+pos, len-pos, "%d %d %d\n",
+                                HighSnr->snrvalue,
+                                HighSnr->snrfreq,
+                                (event->events & 0x0020)?1:0);
+                default:
+                        cmd_len += sizeof(struct mrvlietypes_snrthreshold);
+                        break;
+                }
+        }
+
+        kfree(response_buf);
+
+        res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_highsnr_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        ssize_t res, buf_size;
+        int value, freq, subscribed, cmd_len;
+        struct cmd_ctrl_node *pcmdnode;
+        struct cmd_ds_command *pcmdptr;
+        struct cmd_ds_802_11_subscribe_event *event;
+        struct mrvlietypes_snrthreshold *snr_threshold;
+        void *response_buf;
+        u16 event_bitmap;
+        u8 *ptr;
+        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, "%d %d %d", &value, &freq, &subscribed);
+        if (res != 3) {
+                res = -EFAULT;
+                goto out_unlock;
+        }
+
+        event_bitmap = libertas_get_events_bitmap(priv);
+
+        res = libertas_event_initcmd(priv, &response_buf, &pcmdnode, &pcmdptr);
+        if (res < 0)
+                goto out_unlock;
+
+        event = &pcmdptr->params.subscribe_event;
+        event->action = cmd_act_set;
+        pcmdptr->size = cpu_to_le16(S_DS_GEN +
+                sizeof(struct cmd_ds_802_11_subscribe_event) +
+                sizeof(struct mrvlietypes_snrthreshold));
+        cmd_len = S_DS_GEN + sizeof(struct cmd_ds_802_11_subscribe_event);
+        ptr = (u8*) pcmdptr+cmd_len;
+        snr_threshold = (struct mrvlietypes_snrthreshold *)(ptr);
+        snr_threshold->header.type = cpu_to_le16(TLV_TYPE_SNR_HIGH);
+        snr_threshold->header.len = 2;
+        snr_threshold->snrvalue = cpu_to_le16(value);
+        snr_threshold->snrfreq = cpu_to_le16(freq);
+        event_bitmap |= subscribed ? 0x0020 : 0x0;
+        event->events = event_bitmap;
+
+        libertas_queue_cmd(adapter, pcmdnode, 1);
+        wake_up_interruptible(&priv->mainthread.waitq);
+
+        /* Sleep until response is generated by FW */
+        wait_event_interruptible(pcmdnode->cmdwait_q,
+                                pcmdnode->cmdwaitqwoken);
+
+        pcmdptr = response_buf;
+
+        if (pcmdptr->result) {
+                lbs_pr_err("%s: fail, result=%d\n", __FUNCTION__,
+                        pcmdptr->result);
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        if (pcmdptr->command != cmd_ret_802_11_subscribe_event) {
+                lbs_pr_err("command response incorrect!\n");
+                kfree(response_buf);
+                free_page(addr);
+                return 0;
+        }
+
+        res = count;
+out_unlock:
+        free_page(addr);
+        return res;
+}
+
+static ssize_t libertas_rdmac_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        struct wlan_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 = libertas_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, adapter->offsetvalue.value);
+
+        ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        free_page(addr);
+        return ret;
+}
+
+static ssize_t libertas_rdmac_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_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 libertas_wrmac_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+
+        wlan_private *priv = file->private_data;
+        ssize_t res, buf_size;
+        u32 offset, value;
+        struct wlan_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 = libertas_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 libertas_rdbbp_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        struct wlan_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 = libertas_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, adapter->offsetvalue.value);
+
+        ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        free_page(addr);
+
+        return ret;
+}
+
+static ssize_t libertas_rdbbp_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_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 libertas_wrbbp_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+
+        wlan_private *priv = file->private_data;
+        ssize_t res, buf_size;
+        u32 offset, value;
+        struct wlan_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 = libertas_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 libertas_rdrf_read(struct file *file, char __user *userbuf,
+                                  size_t count, loff_t *ppos)
+{
+        wlan_private *priv = file->private_data;
+        wlan_adapter *adapter = priv->adapter;
+        struct wlan_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 = libertas_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, adapter->offsetvalue.value);
+
+        ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        free_page(addr);
+
+        return ret;
+}
+
+static ssize_t libertas_rdrf_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+        wlan_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 libertas_wrrf_write(struct file *file,
+                                    const char __user *userbuf,
+                                    size_t count, loff_t *ppos)
+{
+
+        wlan_private *priv = file->private_data;
+        ssize_t res, buf_size;
+        u32 offset, value;
+        struct wlan_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 = libertas_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 libertas_debugfs_files {
+        char *name;
+        int perm;
+        struct file_operations fops;
+};
+
+struct libertas_debugfs_files debugfs_files[] = {
+        { "info", 0444, FOPS(libertas_dev_info, write_file_dummy), },
+        { "getscantable", 0444, FOPS(libertas_getscantable,
+                                        write_file_dummy), },
+        { "sleepparams", 0644, FOPS(libertas_sleepparams_read,
+                                libertas_sleepparams_write), },
+        { "extscan", 0600, FOPS(NULL, libertas_extscan), },
+        { "setuserscan", 0600, FOPS(NULL, libertas_setuserscan), },
+};
+
+struct libertas_debugfs_files debugfs_events_files[] = {
+        {"low_rssi", 0644, FOPS(libertas_lowrssi_read,
+                                libertas_lowrssi_write), },
+        {"low_snr", 0644, FOPS(libertas_lowsnr_read,
+                                libertas_lowsnr_write), },
+        {"failure_count", 0644, FOPS(libertas_failcount_read,
+                                libertas_failcount_write), },
+        {"beacon_missed", 0644, FOPS(libertas_bcnmiss_read,
+                                libertas_bcnmiss_write), },
+        {"high_rssi", 0644, FOPS(libertas_highrssi_read,
+                                libertas_highrssi_write), },
+        {"high_snr", 0644, FOPS(libertas_highsnr_read,
+                                libertas_highsnr_write), },
+};
+
+struct libertas_debugfs_files debugfs_regs_files[] = {
+        {"rdmac", 0644, FOPS(libertas_rdmac_read, libertas_rdmac_write), },
+        {"wrmac", 0600, FOPS(NULL, libertas_wrmac_write), },
+        {"rdbbp", 0644, FOPS(libertas_rdbbp_read, libertas_rdbbp_write), },
+        {"wrbbp", 0600, FOPS(NULL, libertas_wrbbp_write), },
+        {"rdrf", 0644, FOPS(libertas_rdrf_read, libertas_rdrf_write), },
+        {"wrrf", 0600, FOPS(NULL, libertas_wrrf_write), },
+};
+
+void libertas_debugfs_init(void)
+{
+        if (!libertas_dir)
+                libertas_dir = debugfs_create_dir("libertas_wireless", NULL);
+
+        return;
+}
+
+void libertas_debugfs_remove(void)
+{
+        if (libertas_dir)
+                 debugfs_remove(libertas_dir);
+        return;
+}
+
+void libertas_debugfs_init_one(wlan_private *priv, struct net_device *dev)
+{
+        int i;
+        struct libertas_debugfs_files *files;
+        if (!libertas_dir)
+                goto exit;
+
+        priv->debugfs_dir = debugfs_create_dir(dev->name, libertas_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
+        libertas_debug_init(priv, dev);
+#endif
+exit:
+        return;
+}
+
+void libertas_debugfs_remove_one(wlan_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_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]);
+}
+
+/* debug entry */
+
+#define item_size(n) (sizeof ((wlan_adapter *)0)->n)
+#define item_addr(n) ((u32) &((wlan_adapter *)0)->n)
+
+struct debug_data {
+        char name[32];
+        u32 size;
+        u32 addr;
+};
+
+/* To debug any member of wlan_adapter, 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 = sizeof(items) / sizeof(items[0]);
+
+/**
+ *  @brief convert string to number
+ *
+ *  @param s       pointer to numbered string
+ *  @return        converted number from string s
+ */
+static int string_to_number(char *s)
+{
+        int r = 0;
+        int base = 0;
+
+        if ((strncmp(s, "0x", 2) == 0) || (strncmp(s, "0X", 2) == 0))
+                base = 16;
+        else
+                base = 10;
+
+        if (base == 16)
+                s += 2;
+
+        for (s = s; *s != 0; s++) {
+                if ((*s >= 48) && (*s <= 57))
+                        r = (r * base) + (*s - 48);
+                else if ((*s >= 65) && (*s <= 70))
+                        r = (r * base) + (*s - 55);
+                else if ((*s >= 97) && (*s <= 102))
+                        r = (r * base) + (*s - 87);
+                else
+                        break;
+        }
+
+        return r;
+}
+
+/**
+ *  @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 wlan_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);
+
+                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 int wlan_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 = (char *)kmalloc(cnt, GFP_KERNEL);
+        if (pdata == NULL)
+                return 0;
+
+        if (copy_from_user(pdata, buf, cnt)) {
+                lbs_pr_debug(1, "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 = string_to_number(p2);
+                        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;
+                        break;
+                } while (1);
+        }
+        kfree(pdata);
+
+        return cnt;
+}
+
+static struct file_operations libertas_debug_fops = {
+        .owner = THIS_MODULE,
+        .open = open_file_generic,
+        .write = wlan_debugfs_write,
+        .read = wlan_debugfs_read,
+};
+
+/**
+ *  @brief create debug proc file
+ *
+ *  @param priv    pointer wlan_private
+ *  @param dev     pointer net_device
+ *  @return        N/A
+ */
+void libertas_debug_init(wlan_private * priv, struct net_device *dev)
+{
+        int i;
+
+        if (!priv->debugfs_dir)
+                return;
+
+        for (i = 0; i < num_of_items; i++)
+                items[i].addr += (u32) priv->adapter;
+
+        priv->debugfs_debug = debugfs_create_file("debug", 0644,
+                                                  priv->debugfs_dir, &items[0],
+                                                  &libertas_debug_fops);
+}
+
+/**
+ *  @brief remove proc file
+ *
+ *  @param priv    pointer wlan_private
+ *  @return        N/A
+ */
+void libertas_debug_remove(wlan_private * priv)
+{
+        debugfs_remove(priv->debugfs_debug);
+}