1 files changed, 0 insertions, 807 deletions

diff --git a/drivers/net/wireless/libertas_tf/cmd.c b/drivers/net/wireless/libertas_tf/cmd.c
deleted file mode 100644
index 909ac3685010..000000000000
--- a/drivers/net/wireless/libertas_tf/cmd.c
+++ /dev/null
@@ -1,807 +0,0 @@
-/*
- *  Copyright (C) 2008, cozybit Inc.
- *  Copyright (C) 2003-2006, Marvell International Ltd.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or (at
- *  your option) any later version.
- */
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/hardirq.h>
-#include <linux/slab.h>
-#include <linux/export.h>
-
-#include "libertas_tf.h"
-
-static const struct channel_range channel_ranges[] = {
-	{ LBTF_REGDOMAIN_US,		1, 12 },
-	{ LBTF_REGDOMAIN_CA,		1, 12 },
-	{ LBTF_REGDOMAIN_EU,		1, 14 },
-	{ LBTF_REGDOMAIN_JP,		1, 14 },
-	{ LBTF_REGDOMAIN_SP,		1, 14 },
-	{ LBTF_REGDOMAIN_FR,		1, 14 },
-};
-
-static u16 lbtf_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
-{
-	LBTF_REGDOMAIN_US, LBTF_REGDOMAIN_CA, LBTF_REGDOMAIN_EU,
-	LBTF_REGDOMAIN_SP, LBTF_REGDOMAIN_FR, LBTF_REGDOMAIN_JP,
-};
-
-static struct cmd_ctrl_node *lbtf_get_cmd_ctrl_node(struct lbtf_private *priv);
-
-
-/**
- *  lbtf_cmd_copyback - Simple callback that copies response back into command
- *
- *  @priv	A pointer to struct lbtf_private structure
- *  @extra	A pointer to the original command structure for which
- *		'resp' is a response
- *  @resp	A pointer to the command response
- *
- *  Returns: 0 on success, error on failure
- */
-int lbtf_cmd_copyback(struct lbtf_private *priv, unsigned long extra,
-		     struct cmd_header *resp)
-{
-	struct cmd_header *buf = (void *)extra;
-	uint16_t copy_len;
-
-	copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
-	memcpy(buf, resp, copy_len);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(lbtf_cmd_copyback);
-
-#define CHAN_TO_IDX(chan) ((chan) - 1)
-
-static void lbtf_geo_init(struct lbtf_private *priv)
-{
-	const struct channel_range *range = channel_ranges;
-	u8 ch;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(channel_ranges); i++)
-		if (channel_ranges[i].regdomain == priv->regioncode) {
-			range = &channel_ranges[i];
-			break;
-		}
-
-	for (ch = priv->range.start; ch < priv->range.end; ch++)
-		priv->channels[CHAN_TO_IDX(ch)].flags = 0;
-}
-
-/**
- *  lbtf_update_hw_spec: Updates the hardware details.
- *
- *  @priv    	A pointer to struct lbtf_private structure
- *
- *  Returns: 0 on success, error on failure
- */
-int lbtf_update_hw_spec(struct lbtf_private *priv)
-{
-	struct cmd_ds_get_hw_spec cmd;
-	int ret = -1;
-	u32 i;
-
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	memset(&cmd, 0, sizeof(cmd));
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
-	ret = lbtf_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
-	if (ret)
-		goto out;
-
-	priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
-
-	/* The firmware release is in an interesting format: the patch
-	 * level is in the most significant nibble ... so fix that: */
-	priv->fwrelease = le32_to_cpu(cmd.fwrelease);
-	priv->fwrelease = (priv->fwrelease << 8) |
-		(priv->fwrelease >> 24 & 0xff);
-
-	printk(KERN_INFO "libertastf: %pM, fw %u.%u.%up%u, cap 0x%08x\n",
-		cmd.permanentaddr,
-		priv->fwrelease >> 24 & 0xff,
-		priv->fwrelease >> 16 & 0xff,
-		priv->fwrelease >>  8 & 0xff,
-		priv->fwrelease       & 0xff,
-		priv->fwcapinfo);
-	lbtf_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
-		    cmd.hwifversion, cmd.version);
-
-	/* Clamp region code to 8-bit since FW spec indicates that it should
-	 * only ever be 8-bit, even though the field size is 16-bit.  Some
-	 * firmware returns non-zero high 8 bits here.
-	 */
-	priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
-
-	for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
-		/* use the region code to search for the index */
-		if (priv->regioncode == lbtf_region_code_to_index[i])
-			break;
-	}
-
-	/* if it's unidentified region code, use the default (USA) */
-	if (i >= MRVDRV_MAX_REGION_CODE) {
-		priv->regioncode = 0x10;
-		pr_info("unidentified region code; using the default (USA)\n");
-	}
-
-	if (priv->current_addr[0] == 0xff)
-		memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
-
-	SET_IEEE80211_PERM_ADDR(priv->hw, priv->current_addr);
-
-	lbtf_geo_init(priv);
-out:
-	lbtf_deb_leave(LBTF_DEB_CMD);
-	return ret;
-}
-
-/**
- *  lbtf_set_channel: Set the radio channel
- *
- *  @priv	A pointer to struct lbtf_private structure
- *  @channel	The desired channel, or 0 to clear a locked channel
- *
- *  Returns: 0 on success, error on failure
- */
-int lbtf_set_channel(struct lbtf_private *priv, u8 channel)
-{
-	int ret = 0;
-	struct cmd_ds_802_11_rf_channel cmd;
-
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
-	cmd.channel = cpu_to_le16(channel);
-
-	ret = lbtf_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
-	lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", ret);
-	return ret;
-}
-
-int lbtf_beacon_set(struct lbtf_private *priv, struct sk_buff *beacon)
-{
-	struct cmd_ds_802_11_beacon_set cmd;
-	int size;
-
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	if (beacon->len > MRVL_MAX_BCN_SIZE) {
-		lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", -1);
-		return -1;
-	}
-	size =  sizeof(cmd) - sizeof(cmd.beacon) + beacon->len;
-	cmd.hdr.size = cpu_to_le16(size);
-	cmd.len = cpu_to_le16(beacon->len);
-	memcpy(cmd.beacon, (u8 *) beacon->data, beacon->len);
-
-	lbtf_cmd_async(priv, CMD_802_11_BEACON_SET, &cmd.hdr, size);
-
-	lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", 0);
-	return 0;
-}
-
-int lbtf_beacon_ctrl(struct lbtf_private *priv, bool beacon_enable,
-		     int beacon_int)
-{
-	struct cmd_ds_802_11_beacon_control cmd;
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.action = cpu_to_le16(CMD_ACT_SET);
-	cmd.beacon_enable = cpu_to_le16(beacon_enable);
-	cmd.beacon_period = cpu_to_le16(beacon_int);
-
-	lbtf_cmd_async(priv, CMD_802_11_BEACON_CTRL, &cmd.hdr, sizeof(cmd));
-
-	lbtf_deb_leave(LBTF_DEB_CMD);
-	return 0;
-}
-
-static void lbtf_queue_cmd(struct lbtf_private *priv,
-			  struct cmd_ctrl_node *cmdnode)
-{
-	unsigned long flags;
-	lbtf_deb_enter(LBTF_DEB_HOST);
-
-	if (!cmdnode) {
-		lbtf_deb_host("QUEUE_CMD: cmdnode is NULL\n");
-		goto qcmd_done;
-	}
-
-	if (!cmdnode->cmdbuf->size) {
-		lbtf_deb_host("DNLD_CMD: cmd size is zero\n");
-		goto qcmd_done;
-	}
-
-	cmdnode->result = 0;
-	spin_lock_irqsave(&priv->driver_lock, flags);
-	list_add_tail(&cmdnode->list, &priv->cmdpendingq);
-	spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-	lbtf_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
-		     le16_to_cpu(cmdnode->cmdbuf->command));
-
-qcmd_done:
-	lbtf_deb_leave(LBTF_DEB_HOST);
-}
-
-static void lbtf_submit_command(struct lbtf_private *priv,
-			       struct cmd_ctrl_node *cmdnode)
-{
-	unsigned long flags;
-	struct cmd_header *cmd;
-	uint16_t cmdsize;
-	uint16_t command;
-	int timeo = 5 * HZ;
-	int ret;
-
-	lbtf_deb_enter(LBTF_DEB_HOST);
-
-	cmd = cmdnode->cmdbuf;
-
-	spin_lock_irqsave(&priv->driver_lock, flags);
-	priv->cur_cmd = cmdnode;
-	cmdsize = le16_to_cpu(cmd->size);
-	command = le16_to_cpu(cmd->command);
-
-	lbtf_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
-		     command, le16_to_cpu(cmd->seqnum), cmdsize);
-	lbtf_deb_hex(LBTF_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
-
-	ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
-	spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-	if (ret) {
-		pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
-		/* Let the timer kick in and retry, and potentially reset
-		   the whole thing if the condition persists */
-		timeo = HZ;
-	}
-
-	/* Setup the timer after transmit command */
-	mod_timer(&priv->command_timer, jiffies + timeo);
-
-	lbtf_deb_leave(LBTF_DEB_HOST);
-}
-
-/**
- *  This function inserts command node to cmdfreeq
- *  after cleans it. Requires priv->driver_lock held.
- */
-static void __lbtf_cleanup_and_insert_cmd(struct lbtf_private *priv,
-					 struct cmd_ctrl_node *cmdnode)
-{
-	lbtf_deb_enter(LBTF_DEB_HOST);
-
-	if (!cmdnode)
-		goto cl_ins_out;
-
-	cmdnode->callback = NULL;
-	cmdnode->callback_arg = 0;
-
-	memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
-
-	list_add_tail(&cmdnode->list, &priv->cmdfreeq);
-
-cl_ins_out:
-	lbtf_deb_leave(LBTF_DEB_HOST);
-}
-
-static void lbtf_cleanup_and_insert_cmd(struct lbtf_private *priv,
-	struct cmd_ctrl_node *ptempcmd)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&priv->driver_lock, flags);
-	__lbtf_cleanup_and_insert_cmd(priv, ptempcmd);
-	spin_unlock_irqrestore(&priv->driver_lock, flags);
-}
-
-void lbtf_complete_command(struct lbtf_private *priv, struct cmd_ctrl_node *cmd,
-			  int result)
-{
-	cmd->result = result;
-	cmd->cmdwaitqwoken = 1;
-	wake_up_interruptible(&cmd->cmdwait_q);
-
-	if (!cmd->callback)
-		__lbtf_cleanup_and_insert_cmd(priv, cmd);
-	priv->cur_cmd = NULL;
-}
-
-int lbtf_cmd_set_mac_multicast_addr(struct lbtf_private *priv)
-{
-	struct cmd_ds_mac_multicast_addr cmd;
-
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.action = cpu_to_le16(CMD_ACT_SET);
-
-	cmd.nr_of_adrs = cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
-
-	lbtf_deb_cmd("MULTICAST_ADR: setting %d addresses\n", cmd.nr_of_adrs);
-
-	memcpy(cmd.maclist, priv->multicastlist,
-	       priv->nr_of_multicastmacaddr * ETH_ALEN);
-
-	lbtf_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &cmd.hdr, sizeof(cmd));
-
-	lbtf_deb_leave(LBTF_DEB_CMD);
-	return 0;
-}
-
-void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode)
-{
-	struct cmd_ds_set_mode cmd;
-	lbtf_deb_enter(LBTF_DEB_WEXT);
-
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.mode = cpu_to_le16(mode);
-	lbtf_deb_wext("Switching to mode: 0x%x\n", mode);
-	lbtf_cmd_async(priv, CMD_802_11_SET_MODE, &cmd.hdr, sizeof(cmd));
-
-	lbtf_deb_leave(LBTF_DEB_WEXT);
-}
-
-void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid)
-{
-	struct cmd_ds_set_bssid cmd;
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.activate = activate ? 1 : 0;
-	if (activate)
-		memcpy(cmd.bssid, bssid, ETH_ALEN);
-
-	lbtf_cmd_async(priv, CMD_802_11_SET_BSSID, &cmd.hdr, sizeof(cmd));
-	lbtf_deb_leave(LBTF_DEB_CMD);
-}
-
-int lbtf_set_mac_address(struct lbtf_private *priv, uint8_t *mac_addr)
-{
-	struct cmd_ds_802_11_mac_address cmd;
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.action = cpu_to_le16(CMD_ACT_SET);
-
-	memcpy(cmd.macadd, mac_addr, ETH_ALEN);
-
-	lbtf_cmd_async(priv, CMD_802_11_MAC_ADDRESS, &cmd.hdr, sizeof(cmd));
-	lbtf_deb_leave(LBTF_DEB_CMD);
-	return 0;
-}
-
-int lbtf_set_radio_control(struct lbtf_private *priv)
-{
-	int ret = 0;
-	struct cmd_ds_802_11_radio_control cmd;
-
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.action = cpu_to_le16(CMD_ACT_SET);
-
-	switch (priv->preamble) {
-	case CMD_TYPE_SHORT_PREAMBLE:
-		cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
-		break;
-
-	case CMD_TYPE_LONG_PREAMBLE:
-		cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
-		break;
-
-	case CMD_TYPE_AUTO_PREAMBLE:
-	default:
-		cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
-		break;
-	}
-
-	if (priv->radioon)
-		cmd.control |= cpu_to_le16(TURN_ON_RF);
-	else
-		cmd.control &= cpu_to_le16(~TURN_ON_RF);
-
-	lbtf_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
-		    priv->preamble);
-
-	ret = lbtf_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
-
-	lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", ret);
-	return ret;
-}
-
-void lbtf_set_mac_control(struct lbtf_private *priv)
-{
-	struct cmd_ds_mac_control cmd;
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.action = cpu_to_le16(priv->mac_control);
-	cmd.reserved = 0;
-
-	lbtf_cmd_async(priv, CMD_MAC_CONTROL,
-		&cmd.hdr, sizeof(cmd));
-
-	lbtf_deb_leave(LBTF_DEB_CMD);
-}
-
-/**
- *  lbtf_allocate_cmd_buffer - Allocates cmd buffer, links it to free cmd queue
- *
- *  @priv	A pointer to struct lbtf_private structure
- *
- *  Returns: 0 on success.
- */
-int lbtf_allocate_cmd_buffer(struct lbtf_private *priv)
-{
-	int ret = 0;
-	u32 bufsize;
-	u32 i;
-	struct cmd_ctrl_node *cmdarray;
-
-	lbtf_deb_enter(LBTF_DEB_HOST);
-
-	/* Allocate and initialize the command array */
-	bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
-	cmdarray = kzalloc(bufsize, GFP_KERNEL);
-	if (!cmdarray) {
-		lbtf_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
-		ret = -1;
-		goto done;
-	}
-	priv->cmd_array = cmdarray;
-
-	/* Allocate and initialize each command buffer in the command array */
-	for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
-		cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
-		if (!cmdarray[i].cmdbuf) {
-			lbtf_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
-			ret = -1;
-			goto done;
-		}
-	}
-
-	for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
-		init_waitqueue_head(&cmdarray[i].cmdwait_q);
-		lbtf_cleanup_and_insert_cmd(priv, &cmdarray[i]);
-	}
-
-	ret = 0;
-
-done:
-	lbtf_deb_leave_args(LBTF_DEB_HOST, "ret %d", ret);
-	return ret;
-}
-
-/**
- *  lbtf_free_cmd_buffer - Frees the cmd buffer.
- *
- *  @priv	A pointer to struct lbtf_private structure
- *
- *  Returns: 0
- */
-int lbtf_free_cmd_buffer(struct lbtf_private *priv)
-{
-	struct cmd_ctrl_node *cmdarray;
-	unsigned int i;
-
-	lbtf_deb_enter(LBTF_DEB_HOST);
-
-	/* need to check if cmd array is allocated or not */
-	if (priv->cmd_array == NULL) {
-		lbtf_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
-		goto done;
-	}
-
-	cmdarray = priv->cmd_array;
-
-	/* Release shared memory buffers */
-	for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
-		kfree(cmdarray[i].cmdbuf);
-		cmdarray[i].cmdbuf = NULL;
-	}
-
-	/* Release cmd_ctrl_node */
-	kfree(priv->cmd_array);
-	priv->cmd_array = NULL;
-
-done:
-	lbtf_deb_leave(LBTF_DEB_HOST);
-	return 0;
-}
-
-/**
- *  lbtf_get_cmd_ctrl_node - Gets free cmd node from free cmd queue.
- *
- *  @priv		A pointer to struct lbtf_private structure
- *
- *  Returns: pointer to a struct cmd_ctrl_node or NULL if none available.
- */
-static struct cmd_ctrl_node *lbtf_get_cmd_ctrl_node(struct lbtf_private *priv)
-{
-	struct cmd_ctrl_node *tempnode;
-	unsigned long flags;
-
-	lbtf_deb_enter(LBTF_DEB_HOST);
-
-	if (!priv)
-		return NULL;
-
-	spin_lock_irqsave(&priv->driver_lock, flags);
-
-	if (!list_empty(&priv->cmdfreeq)) {
-		tempnode = list_first_entry(&priv->cmdfreeq,
-					    struct cmd_ctrl_node, list);
-		list_del(&tempnode->list);
-	} else {
-		lbtf_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
-		tempnode = NULL;
-	}
-
-	spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-	lbtf_deb_leave(LBTF_DEB_HOST);
-	return tempnode;
-}
-
-/**
- *  lbtf_execute_next_command: execute next command in cmd pending queue.
- *
- *  @priv     A pointer to struct lbtf_private structure
- *
- *  Returns: 0 on success.
- */
-int lbtf_execute_next_command(struct lbtf_private *priv)
-{
-	struct cmd_ctrl_node *cmdnode = NULL;
-	struct cmd_header *cmd;
-	unsigned long flags;
-	int ret = 0;
-
-	/* Debug group is lbtf_deb_THREAD and not lbtf_deb_HOST, because the
-	 * only caller to us is lbtf_thread() and we get even when a
-	 * data packet is received */
-	lbtf_deb_enter(LBTF_DEB_THREAD);
-
-	spin_lock_irqsave(&priv->driver_lock, flags);
-
-	if (priv->cur_cmd) {
-		pr_alert("EXEC_NEXT_CMD: already processing command!\n");
-		spin_unlock_irqrestore(&priv->driver_lock, flags);
-		ret = -1;
-		goto done;
-	}
-
-	if (!list_empty(&priv->cmdpendingq)) {
-		cmdnode = list_first_entry(&priv->cmdpendingq,
-					   struct cmd_ctrl_node, list);
-	}
-
-	if (cmdnode) {
-		cmd = cmdnode->cmdbuf;
-
-		list_del(&cmdnode->list);
-		lbtf_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
-			    le16_to_cpu(cmd->command));
-		spin_unlock_irqrestore(&priv->driver_lock, flags);
-		lbtf_submit_command(priv, cmdnode);
-	} else
-		spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-	ret = 0;
-done:
-	lbtf_deb_leave(LBTF_DEB_THREAD);
-	return ret;
-}
-
-static struct cmd_ctrl_node *__lbtf_cmd_async(struct lbtf_private *priv,
-	uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
-	int (*callback)(struct lbtf_private *, unsigned long,
-			struct cmd_header *),
-	unsigned long callback_arg)
-{
-	struct cmd_ctrl_node *cmdnode;
-
-	lbtf_deb_enter(LBTF_DEB_HOST);
-
-	if (priv->surpriseremoved) {
-		lbtf_deb_host("PREP_CMD: card removed\n");
-		cmdnode = ERR_PTR(-ENOENT);
-		goto done;
-	}
-
-	cmdnode = lbtf_get_cmd_ctrl_node(priv);
-	if (cmdnode == NULL) {
-		lbtf_deb_host("PREP_CMD: cmdnode is NULL\n");
-
-		/* Wake up main thread to execute next command */
-		queue_work(lbtf_wq, &priv->cmd_work);
-		cmdnode = ERR_PTR(-ENOBUFS);
-		goto done;
-	}
-
-	cmdnode->callback = callback;
-	cmdnode->callback_arg = callback_arg;
-
-	/* Copy the incoming command to the buffer */
-	memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
-
-	/* Set sequence number, clean result, move to buffer */
-	priv->seqnum++;
-	cmdnode->cmdbuf->command = cpu_to_le16(command);
-	cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
-	cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
-	cmdnode->cmdbuf->result  = 0;
-
-	lbtf_deb_host("PREP_CMD: command 0x%04x\n", command);
-
-	cmdnode->cmdwaitqwoken = 0;
-	lbtf_queue_cmd(priv, cmdnode);
-	queue_work(lbtf_wq, &priv->cmd_work);
-
- done:
-	lbtf_deb_leave_args(LBTF_DEB_HOST, "ret %p", cmdnode);
-	return cmdnode;
-}
-
-void lbtf_cmd_async(struct lbtf_private *priv, uint16_t command,
-	struct cmd_header *in_cmd, int in_cmd_size)
-{
-	lbtf_deb_enter(LBTF_DEB_CMD);
-	__lbtf_cmd_async(priv, command, in_cmd, in_cmd_size, NULL, 0);
-	lbtf_deb_leave(LBTF_DEB_CMD);
-}
-
-int __lbtf_cmd(struct lbtf_private *priv, uint16_t command,
-	      struct cmd_header *in_cmd, int in_cmd_size,
-	      int (*callback)(struct lbtf_private *,
-			      unsigned long, struct cmd_header *),
-	      unsigned long callback_arg)
-{
-	struct cmd_ctrl_node *cmdnode;
-	unsigned long flags;
-	int ret = 0;
-
-	lbtf_deb_enter(LBTF_DEB_HOST);
-
-	cmdnode = __lbtf_cmd_async(priv, command, in_cmd, in_cmd_size,
-				  callback, callback_arg);
-	if (IS_ERR(cmdnode)) {
-		ret = PTR_ERR(cmdnode);
-		goto done;
-	}
-
-	might_sleep();
-	ret = wait_event_interruptible(cmdnode->cmdwait_q,
-				       cmdnode->cmdwaitqwoken);
-	if (ret) {
-		pr_info("PREP_CMD: command 0x%04x interrupted by signal: %d\n",
-			    command, ret);
-		goto done;
-	}
-
-	spin_lock_irqsave(&priv->driver_lock, flags);
-	ret = cmdnode->result;
-	if (ret)
-		pr_info("PREP_CMD: command 0x%04x failed: %d\n",
-			    command, ret);
-
-	__lbtf_cleanup_and_insert_cmd(priv, cmdnode);
-	spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-done:
-	lbtf_deb_leave_args(LBTF_DEB_HOST, "ret %d", ret);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(__lbtf_cmd);
-
-/* Call holding driver_lock */
-void lbtf_cmd_response_rx(struct lbtf_private *priv)
-{
-	priv->cmd_response_rxed = 1;
-	queue_work(lbtf_wq, &priv->cmd_work);
-}
-EXPORT_SYMBOL_GPL(lbtf_cmd_response_rx);
-
-int lbtf_process_rx_command(struct lbtf_private *priv)
-{
-	uint16_t respcmd, curcmd;
-	struct cmd_header *resp;
-	int ret = 0;
-	unsigned long flags;
-	uint16_t result;
-
-	lbtf_deb_enter(LBTF_DEB_CMD);
-
-	mutex_lock(&priv->lock);
-	spin_lock_irqsave(&priv->driver_lock, flags);
-
-	if (!priv->cur_cmd) {
-		ret = -1;
-		spin_unlock_irqrestore(&priv->driver_lock, flags);
-		goto done;
-	}
-
-	resp = (void *)priv->cmd_resp_buff;
-	curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
-	respcmd = le16_to_cpu(resp->command);
-	result = le16_to_cpu(resp->result);
-
-	if (net_ratelimit())
-		pr_info("libertastf: cmd response 0x%04x, seq %d, size %d\n",
-			respcmd, le16_to_cpu(resp->seqnum),
-			le16_to_cpu(resp->size));
-
-	if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
-		spin_unlock_irqrestore(&priv->driver_lock, flags);
-		ret = -1;
-		goto done;
-	}
-	if (respcmd != CMD_RET(curcmd)) {
-		spin_unlock_irqrestore(&priv->driver_lock, flags);
-		ret = -1;
-		goto done;
-	}
-
-	if (resp->result == cpu_to_le16(0x0004)) {
-		/* 0x0004 means -EAGAIN. Drop the response, let it time out
-		   and be resubmitted */
-		spin_unlock_irqrestore(&priv->driver_lock, flags);
-		ret = -1;
-		goto done;
-	}
-
-	/* Now we got response from FW, cancel the command timer */
-	del_timer(&priv->command_timer);
-	priv->cmd_timed_out = 0;
-	if (priv->nr_retries)
-		priv->nr_retries = 0;
-
-	/* If the command is not successful, cleanup and return failure */
-	if ((result != 0 || !(respcmd & 0x8000))) {
-		/*
-		 * Handling errors here
-		 */
-		switch (respcmd) {
-		case CMD_RET(CMD_GET_HW_SPEC):
-		case CMD_RET(CMD_802_11_RESET):
-			pr_info("libertastf: reset failed\n");
-			break;
-
-		}
-		lbtf_complete_command(priv, priv->cur_cmd, result);
-		spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-		ret = -1;
-		goto done;
-	}
-
-	spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-	if (priv->cur_cmd && priv->cur_cmd->callback) {
-		ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
-				resp);
-	}
-	spin_lock_irqsave(&priv->driver_lock, flags);
-
-	if (priv->cur_cmd) {
-		/* Clean up and Put current command back to cmdfreeq */
-		lbtf_complete_command(priv, priv->cur_cmd, result);
-	}
-	spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-done:
-	mutex_unlock(&priv->lock);
-	lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", ret);
-	return ret;
-}