[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, 1031 insertions, 0 deletions

diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c
new file mode 100644
index 000000000000..cdb012c7e9cf
--- /dev/null
+++ b/drivers/net/wireless/libertas/cmdresp.c
@@ -0,0 +1,1031 @@
+/**
+  * This file contains the handling of command
+  * responses as well as events generated by firmware.
+  */
+#include <linux/delay.h>
+#include <linux/if_arp.h>
+#include <linux/netdevice.h>
+
+#include <net/iw_handler.h>
+
+#include "host.h"
+#include "sbi.h"
+#include "decl.h"
+#include "defs.h"
+#include "dev.h"
+#include "join.h"
+#include "wext.h"
+
+/**
+ *  @brief This function handles disconnect event. it
+ *  reports disconnect to upper layer, clean tx/rx packets,
+ *  reset link state etc.
+ *
+ *  @param priv    A pointer to wlan_private structure
+ *  @return 	   n/a
+ */
+void libertas_mac_event_disconnected(wlan_private * priv)
+{
+	wlan_adapter *adapter = priv->adapter;
+	union iwreq_data wrqu;
+
+	if (adapter->connect_status != libertas_connected)
+		return;
+
+	lbs_pr_debug(1, "Handles disconnect event.\n");
+
+	memset(wrqu.ap_addr.sa_data, 0x00, ETH_ALEN);
+	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+
+	/*
+	 * Cisco AP sends EAP failure and de-auth in less than 0.5 ms.
+	 * It causes problem in the Supplicant
+	 */
+
+	msleep_interruptible(1000);
+	wireless_send_event(priv->wlan_dev.netdev, SIOCGIWAP, &wrqu, NULL);
+
+	/* Free Tx and Rx packets */
+	kfree_skb(priv->adapter->currenttxskb);
+	priv->adapter->currenttxskb = NULL;
+
+	/* report disconnect to upper layer */
+	netif_stop_queue(priv->wlan_dev.netdev);
+	netif_carrier_off(priv->wlan_dev.netdev);
+
+	/* reset SNR/NF/RSSI values */
+	memset(adapter->SNR, 0x00, sizeof(adapter->SNR));
+	memset(adapter->NF, 0x00, sizeof(adapter->NF));
+	memset(adapter->RSSI, 0x00, sizeof(adapter->RSSI));
+	memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
+	memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
+	adapter->nextSNRNF = 0;
+	adapter->numSNRNF = 0;
+	adapter->rxpd_rate = 0;
+	lbs_pr_debug(1, "Current SSID=%s, ssid length=%u\n",
+	       adapter->curbssparams.ssid.ssid,
+	       adapter->curbssparams.ssid.ssidlength);
+	lbs_pr_debug(1, "Previous SSID=%s, ssid length=%u\n",
+	       adapter->previousssid.ssid, adapter->previousssid.ssidlength);
+
+	/* reset internal flags */
+	adapter->secinfo.WPAenabled = 0;
+	adapter->secinfo.WPA2enabled = 0;
+	adapter->wpa_ie_len = 0;
+	adapter->secinfo.auth1xalg = WLAN_1X_AUTH_ALG_NONE;
+	adapter->secinfo.Encryptionmode = CIPHER_NONE;
+
+	adapter->connect_status = libertas_disconnected;
+
+	/*
+	 * memorize the previous SSID and BSSID
+	 * it could be used for re-assoc
+	 */
+	memcpy(&adapter->previousssid,
+	       &adapter->curbssparams.ssid, sizeof(struct WLAN_802_11_SSID));
+	memcpy(adapter->previousbssid,
+	       adapter->curbssparams.bssid, ETH_ALEN);
+
+	/* need to erase the current SSID and BSSID info */
+	adapter->pattemptedbssdesc = NULL;
+	memset(&adapter->curbssparams, 0, sizeof(adapter->curbssparams));
+
+	if (adapter->psstate != PS_STATE_FULL_POWER) {
+		/* make firmware to exit PS mode */
+		lbs_pr_debug(1, "Disconnected, so exit PS mode.\n");
+		libertas_ps_wakeup(priv, 0);
+	}
+}
+
+/**
+ *  @brief This function handles MIC failure event.
+ *
+ *  @param priv    A pointer to wlan_private structure
+ *  @para  event   the event id
+ *  @return 	   n/a
+ */
+static void handle_mic_failureevent(wlan_private * priv, u32 event)
+{
+	char buf[50];
+
+	memset(buf, 0, sizeof(buf));
+
+	sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
+
+	if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) {
+		strcat(buf, "unicast ");
+	} else {
+		strcat(buf, "multicast ");
+	}
+
+	libertas_send_iwevcustom_event(priv, buf);
+}
+
+static int wlan_ret_reg_access(wlan_private * priv,
+			       u16 type, struct cmd_ds_command *resp)
+{
+	wlan_adapter *adapter = priv->adapter;
+
+	ENTER();
+
+	switch (type) {
+	case cmd_ret_mac_reg_access:
+		{
+			struct cmd_ds_mac_reg_access *reg;
+
+			reg =
+			    (struct cmd_ds_mac_reg_access *)&resp->params.
+			    macreg;
+
+			adapter->offsetvalue.offset = reg->offset;
+			adapter->offsetvalue.value = reg->value;
+			break;
+		}
+
+	case cmd_ret_bbp_reg_access:
+		{
+			struct cmd_ds_bbp_reg_access *reg;
+			reg =
+			    (struct cmd_ds_bbp_reg_access *)&resp->params.
+			    bbpreg;
+
+			adapter->offsetvalue.offset = reg->offset;
+			adapter->offsetvalue.value = reg->value;
+			break;
+		}
+
+	case cmd_ret_rf_reg_access:
+		{
+			struct cmd_ds_rf_reg_access *reg;
+			reg =
+			    (struct cmd_ds_rf_reg_access *)&resp->params.
+			    rfreg;
+
+			adapter->offsetvalue.offset = reg->offset;
+			adapter->offsetvalue.value = reg->value;
+			break;
+		}
+
+	default:
+		LEAVE();
+		return -1;
+	}
+
+	LEAVE();
+	return 0;
+}
+
+static int wlan_ret_get_hw_spec(wlan_private * priv,
+				struct cmd_ds_command *resp)
+{
+	u32 i;
+	struct cmd_ds_get_hw_spec *hwspec = &resp->params.hwspec;
+	wlan_adapter *adapter = priv->adapter;
+	int ret = 0;
+
+	ENTER();
+
+	adapter->fwcapinfo = le32_to_cpu(hwspec->fwcapinfo);
+
+	adapter->fwreleasenumber = hwspec->fwreleasenumber;
+
+	lbs_pr_debug(1, "GET_HW_SPEC: FWReleaseVersion- 0x%X\n",
+	       adapter->fwreleasenumber);
+	lbs_pr_debug(1, "GET_HW_SPEC: Permanent addr- %2x:%2x:%2x:%2x:%2x:%2x\n",
+	       hwspec->permanentaddr[0], hwspec->permanentaddr[1],
+	       hwspec->permanentaddr[2], hwspec->permanentaddr[3],
+	       hwspec->permanentaddr[4], hwspec->permanentaddr[5]);
+	lbs_pr_debug(1, "GET_HW_SPEC: hwifversion=0x%X  version=0x%X\n",
+	       hwspec->hwifversion, hwspec->version);
+
+	adapter->regioncode = le16_to_cpu(hwspec->regioncode);
+
+	for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
+		/* use the region code to search for the index */
+		if (adapter->regioncode == libertas_region_code_to_index[i]) {
+			adapter->regiontableindex = (u16) i;
+			break;
+		}
+	}
+
+	/* if it's unidentified region code, use the default (USA) */
+	if (i >= MRVDRV_MAX_REGION_CODE) {
+		adapter->regioncode = 0x10;
+		adapter->regiontableindex = 0;
+		lbs_pr_info(
+		       "unidentified region code, use the default (USA)\n");
+	}
+
+	if (adapter->current_addr[0] == 0xff) {
+		memmove(adapter->current_addr, hwspec->permanentaddr,
+			ETH_ALEN);
+	}
+
+	memcpy(priv->wlan_dev.netdev->dev_addr, adapter->current_addr, ETH_ALEN);
+	memcpy(priv->mesh_dev->dev_addr, adapter->current_addr, ETH_ALEN);
+
+	if (libertas_set_regiontable(priv, adapter->regioncode, 0)) {
+		ret = -1;
+		goto done;
+	}
+
+	if (libertas_set_universaltable(priv, 0)) {
+		ret = -1;
+		goto done;
+	}
+
+      done:
+	LEAVE();
+	return ret;
+}
+
+static int wlan_ret_802_11_sleep_params(wlan_private * priv,
+					struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_sleep_params *sp = &resp->params.sleep_params;
+	wlan_adapter *adapter = priv->adapter;
+
+	ENTER();
+
+	lbs_pr_debug(1, "error=%x offset=%x stabletime=%x calcontrol=%x\n"
+	       " extsleepclk=%x\n", sp->error, sp->offset,
+	       sp->stabletime, sp->calcontrol, sp->externalsleepclk);
+	adapter->sp.sp_error = le16_to_cpu(sp->error);
+	adapter->sp.sp_offset = le16_to_cpu(sp->offset);
+	adapter->sp.sp_stabletime = le16_to_cpu(sp->stabletime);
+	adapter->sp.sp_calcontrol = le16_to_cpu(sp->calcontrol);
+	adapter->sp.sp_extsleepclk = le16_to_cpu(sp->externalsleepclk);
+	adapter->sp.sp_reserved = le16_to_cpu(sp->reserved);
+
+	LEAVE();
+	return 0;
+}
+
+static int wlan_ret_802_11_stat(wlan_private * priv,
+				struct cmd_ds_command *resp)
+{
+/*	currently adapter->wlan802_11Stat is unused
+
+	struct cmd_ds_802_11_get_stat *p11Stat = &resp->params.gstat;
+	wlan_adapter *adapter = priv->adapter;
+
+	// TODO Convert it to Big endian befor copy
+	memcpy(&adapter->wlan802_11Stat,
+	       p11Stat, sizeof(struct cmd_ds_802_11_get_stat));
+*/
+	return 0;
+}
+
+static int wlan_ret_802_11_snmp_mib(wlan_private * priv,
+				    struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
+	u16 oid = le16_to_cpu(smib->oid);
+	u16 querytype = le16_to_cpu(smib->querytype);
+
+	ENTER();
+
+	lbs_pr_debug(1, "SNMP_RESP: value of the oid = %x, querytype=%x\n", oid,
+	       querytype);
+	lbs_pr_debug(1, "SNMP_RESP: Buf size  = %x\n",
+	       le16_to_cpu(smib->bufsize));
+
+	if (querytype == cmd_act_get) {
+		switch (oid) {
+		case fragthresh_i:
+			priv->adapter->fragthsd =
+			    le16_to_cpu(*
+					     ((unsigned short *)(smib->value)));
+			lbs_pr_debug(1, "SNMP_RESP: fragthsd =%u\n",
+			       priv->adapter->fragthsd);
+			break;
+		case rtsthresh_i:
+			priv->adapter->rtsthsd =
+			    le16_to_cpu(*
+					     ((unsigned short *)(smib->value)));
+			lbs_pr_debug(1, "SNMP_RESP: rtsthsd =%u\n",
+			       priv->adapter->rtsthsd);
+			break;
+		case short_retrylim_i:
+			priv->adapter->txretrycount =
+			    le16_to_cpu(*
+					     ((unsigned short *)(smib->value)));
+			lbs_pr_debug(1, "SNMP_RESP: txretrycount =%u\n",
+			       priv->adapter->rtsthsd);
+			break;
+		default:
+			break;
+		}
+	}
+
+	LEAVE();
+	return 0;
+}
+
+static int wlan_ret_802_11_key_material(wlan_private * priv,
+					struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_key_material *pkeymaterial =
+	    &resp->params.keymaterial;
+	wlan_adapter *adapter = priv->adapter;
+	u16 action = le16_to_cpu(pkeymaterial->action);
+
+	ENTER();
+
+	/* Copy the returned key to driver private data */
+	if (action == cmd_act_get) {
+		u8 * buf_ptr = (u8 *) &pkeymaterial->keyParamSet;
+		u8 * resp_end = (u8 *) (resp + le16_to_cpu(resp->size));
+
+		while (buf_ptr < resp_end) {
+			struct MrvlIEtype_keyParamSet * pkeyparamset =
+			    (struct MrvlIEtype_keyParamSet *) buf_ptr;
+			struct WLAN_802_11_KEY * pkey;
+			u16 key_info = le16_to_cpu(pkeyparamset->keyinfo);
+			u16 param_set_len = le16_to_cpu(pkeyparamset->length);
+			u8 * end;
+			u16 key_len = le16_to_cpu(pkeyparamset->keylen);
+
+			end = (u8 *) pkeyparamset + sizeof (pkeyparamset->type)
+			                          + sizeof (pkeyparamset->length)
+			                          + param_set_len;
+			/* Make sure we don't access past the end of the IEs */
+			if (end > resp_end)
+				break;
+
+			if (key_info & KEY_INFO_WPA_UNICAST)
+				pkey = &adapter->wpa_unicast_key;
+			else if (key_info & KEY_INFO_WPA_MCAST)
+				pkey = &adapter->wpa_mcast_key;
+			else
+				break;
+
+			/* Copy returned key into driver */
+			memset(pkey, 0, sizeof(struct WLAN_802_11_KEY));
+			if (key_len > sizeof(pkey->key))
+				break;
+			pkey->type = le16_to_cpu(pkeyparamset->keytypeid);
+			pkey->flags = le16_to_cpu(pkeyparamset->keyinfo);
+			pkey->len = le16_to_cpu(pkeyparamset->keylen);
+			memcpy(pkey->key, pkeyparamset->key, pkey->len);
+
+			buf_ptr = end + 1;
+		}
+	}
+
+	LEAVE();
+	return 0;
+}
+
+static int wlan_ret_802_11_mac_address(wlan_private * priv,
+				       struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_mac_address *macadd = &resp->params.macadd;
+	wlan_adapter *adapter = priv->adapter;
+
+	ENTER();
+
+	memcpy(adapter->current_addr, macadd->macadd, ETH_ALEN);
+
+	LEAVE();
+	return 0;
+}
+
+static int wlan_ret_802_11_rf_tx_power(wlan_private * priv,
+				       struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_rf_tx_power *rtp = &resp->params.txp;
+	wlan_adapter *adapter = priv->adapter;
+
+	ENTER();
+
+	adapter->txpowerlevel = le16_to_cpu(rtp->currentlevel);
+
+	lbs_pr_debug(1, "Current TxPower Level = %d\n", adapter->txpowerlevel);
+
+	LEAVE();
+	return 0;
+}
+
+static int wlan_ret_802_11_rf_antenna(wlan_private * priv,
+				      struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_rf_antenna *pAntenna = &resp->params.rant;
+	wlan_adapter *adapter = priv->adapter;
+	u16 action = le16_to_cpu(pAntenna->action);
+
+	if (action == cmd_act_get_rx)
+		adapter->rxantennamode =
+		    le16_to_cpu(pAntenna->antennamode);
+
+	if (action == cmd_act_get_tx)
+		adapter->txantennamode =
+		    le16_to_cpu(pAntenna->antennamode);
+
+	lbs_pr_debug(1, "RF_ANT_RESP: action = 0x%x, mode = 0x%04x\n",
+	       action, le16_to_cpu(pAntenna->antennamode));
+
+	return 0;
+}
+
+static int wlan_ret_802_11_rate_adapt_rateset(wlan_private * priv,
+					      struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_rate_adapt_rateset *rates =
+	    &resp->params.rateset;
+	wlan_adapter *adapter = priv->adapter;
+
+	ENTER();
+
+	if (rates->action == cmd_act_get) {
+		adapter->enablehwauto = rates->enablehwauto;
+		adapter->ratebitmap = rates->bitmap;
+	}
+
+	LEAVE();
+
+	return 0;
+}
+
+static int wlan_ret_802_11_data_rate(wlan_private * priv,
+				     struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_data_rate *pdatarate = &resp->params.drate;
+	wlan_adapter *adapter = priv->adapter;
+	u8 dot11datarate;
+
+	ENTER();
+
+	lbs_dbg_hex("DATA_RATE_RESP: data_rate- ",
+		(u8 *) pdatarate, sizeof(struct cmd_ds_802_11_data_rate));
+
+	dot11datarate = pdatarate->datarate[0];
+	if (pdatarate->action == cmd_act_get_tx_rate) {
+		memcpy(adapter->libertas_supported_rates, pdatarate->datarate,
+		       sizeof(adapter->libertas_supported_rates));
+	}
+	adapter->datarate = libertas_index_to_data_rate(dot11datarate);
+
+	LEAVE();
+	return 0;
+}
+
+static int wlan_ret_802_11_rf_channel(wlan_private * priv,
+				      struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_rf_channel *rfchannel =
+	    &resp->params.rfchannel;
+	wlan_adapter *adapter = priv->adapter;
+	u16 action = le16_to_cpu(rfchannel->action);
+	u16 newchannel = le16_to_cpu(rfchannel->currentchannel);
+
+	ENTER();
+
+	if (action == cmd_opt_802_11_rf_channel_get
+	    && adapter->curbssparams.channel != newchannel) {
+		lbs_pr_debug(1, "channel Switch: %d to %d\n",
+		       adapter->curbssparams.channel, newchannel);
+
+		/* Update the channel again */
+		adapter->curbssparams.channel = newchannel;
+	}
+
+	LEAVE();
+	return 0;
+}
+
+static int wlan_ret_802_11_rssi(wlan_private * priv,
+				struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
+	wlan_adapter *adapter = priv->adapter;
+
+	/* store the non average value */
+	adapter->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR);
+	adapter->NF[TYPE_BEACON][TYPE_NOAVG] =
+	    le16_to_cpu(rssirsp->noisefloor);
+
+	adapter->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR);
+	adapter->NF[TYPE_BEACON][TYPE_AVG] =
+	    le16_to_cpu(rssirsp->avgnoisefloor);
+
+	adapter->RSSI[TYPE_BEACON][TYPE_NOAVG] =
+	    CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_NOAVG],
+		     adapter->NF[TYPE_BEACON][TYPE_NOAVG]);
+
+	adapter->RSSI[TYPE_BEACON][TYPE_AVG] =
+	    CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
+		     adapter->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
+
+	lbs_pr_debug(1, "Beacon RSSI value = 0x%x\n",
+	       adapter->RSSI[TYPE_BEACON][TYPE_AVG]);
+
+	return 0;
+}
+
+static int wlan_ret_802_11_eeprom_access(wlan_private * priv,
+				  struct cmd_ds_command *resp)
+{
+	wlan_adapter *adapter = priv->adapter;
+	struct wlan_ioctl_regrdwr *pbuf;
+	pbuf = (struct wlan_ioctl_regrdwr *) adapter->prdeeprom;
+
+	lbs_pr_debug(1, "eeprom read len=%x\n",
+	       le16_to_cpu(resp->params.rdeeprom.bytecount));
+	if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) {
+		pbuf->NOB = 0;
+		lbs_pr_debug(1, "eeprom read return length is too big\n");
+		return -1;
+	}
+	pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount);
+	if (pbuf->NOB > 0) {
+
+		memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value,
+		       le16_to_cpu(resp->params.rdeeprom.bytecount));
+		lbs_dbg_hex("adapter", (char *)&pbuf->value,
+			le16_to_cpu(resp->params.rdeeprom.bytecount));
+	}
+	return 0;
+}
+
+static int wlan_ret_get_log(wlan_private * priv,
+			    struct cmd_ds_command *resp)
+{
+	struct cmd_ds_802_11_get_log *logmessage =
+	    (struct cmd_ds_802_11_get_log *)&resp->params.glog;
+	wlan_adapter *adapter = priv->adapter;
+
+	ENTER();
+
+	/* TODO Convert it to Big Endian before copy */
+	memcpy(&adapter->logmsg, logmessage,
+	       sizeof(struct cmd_ds_802_11_get_log));
+
+	LEAVE();
+	return 0;
+}
+
+static inline int handle_cmd_response(u16 respcmd,
+				      struct cmd_ds_command *resp,
+				      wlan_private *priv)
+{
+	int ret = 0;
+	unsigned long flags;
+	wlan_adapter *adapter = priv->adapter;
+
+	switch (respcmd) {
+	case cmd_ret_mac_reg_access:
+	case cmd_ret_bbp_reg_access:
+	case cmd_ret_rf_reg_access:
+		ret = wlan_ret_reg_access(priv, respcmd, resp);
+		break;
+
+	case cmd_ret_hw_spec_info:
+		ret = wlan_ret_get_hw_spec(priv, resp);
+		break;
+
+	case cmd_ret_802_11_scan:
+		ret = libertas_ret_80211_scan(priv, resp);
+		break;
+
+	case cmd_ret_802_11_get_log:
+		ret = wlan_ret_get_log(priv, resp);
+		break;
+
+	case cmd_ret_802_11_associate:
+	case cmd_ret_802_11_reassociate:
+		ret = libertas_ret_80211_associate(priv, resp);
+		break;
+
+	case cmd_ret_802_11_disassociate:
+	case cmd_ret_802_11_deauthenticate:
+		ret = libertas_ret_80211_disassociate(priv, resp);
+		break;
+
+	case cmd_ret_802_11_ad_hoc_start:
+	case cmd_ret_802_11_ad_hoc_join:
+		ret = libertas_ret_80211_ad_hoc_start(priv, resp);
+		break;
+
+	case cmd_ret_802_11_stat:
+		ret = wlan_ret_802_11_stat(priv, resp);
+		break;
+
+	case cmd_ret_802_11_snmp_mib:
+		ret = wlan_ret_802_11_snmp_mib(priv, resp);
+		break;
+
+	case cmd_ret_802_11_rf_tx_power:
+		ret = wlan_ret_802_11_rf_tx_power(priv, resp);
+		break;
+
+	case cmd_ret_802_11_set_afc:
+	case cmd_ret_802_11_get_afc:
+		spin_lock_irqsave(&adapter->driver_lock, flags);
+		memmove(adapter->cur_cmd->pdata_buf,
+			&resp->params.afc,
+			sizeof(struct cmd_ds_802_11_afc));
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+
+		break;
+	case cmd_ret_802_11_rf_antenna:
+		ret = wlan_ret_802_11_rf_antenna(priv, resp);
+		break;
+
+	case cmd_ret_mac_multicast_adr:
+	case cmd_ret_mac_control:
+	case cmd_ret_802_11_set_wep:
+	case cmd_ret_802_11_reset:
+	case cmd_ret_802_11_authenticate:
+	case cmd_ret_802_11_radio_control:
+	case cmd_ret_802_11_beacon_stop:
+	case cmd_ret_802_11_enable_rsn:
+		break;
+
+	case cmd_ret_802_11_data_rate:
+		ret = wlan_ret_802_11_data_rate(priv, resp);
+		break;
+	case cmd_ret_802_11_rate_adapt_rateset:
+		ret = wlan_ret_802_11_rate_adapt_rateset(priv, resp);
+		break;
+	case cmd_ret_802_11_rf_channel:
+		ret = wlan_ret_802_11_rf_channel(priv, resp);
+		break;
+
+	case cmd_ret_802_11_rssi:
+		ret = wlan_ret_802_11_rssi(priv, resp);
+		break;
+
+	case cmd_ret_802_11_mac_address:
+		ret = wlan_ret_802_11_mac_address(priv, resp);
+		break;
+
+	case cmd_ret_802_11_ad_hoc_stop:
+		ret = libertas_ret_80211_ad_hoc_stop(priv, resp);
+		break;
+
+	case cmd_ret_802_11_key_material:
+		lbs_pr_debug(1, "CMD_RESP: KEY_MATERIAL command response\n");
+		ret = wlan_ret_802_11_key_material(priv, resp);
+		break;
+
+	case cmd_ret_802_11_eeprom_access:
+		ret = wlan_ret_802_11_eeprom_access(priv, resp);
+		break;
+
+	case cmd_ret_802_11d_domain_info:
+		ret = libertas_ret_802_11d_domain_info(priv, resp);
+		break;
+
+	case cmd_ret_802_11_sleep_params:
+		ret = wlan_ret_802_11_sleep_params(priv, resp);
+		break;
+	case cmd_ret_802_11_inactivity_timeout:
+		spin_lock_irqsave(&adapter->driver_lock, flags);
+		*((u16 *) adapter->cur_cmd->pdata_buf) =
+		    le16_to_cpu(resp->params.inactivity_timeout.timeout);
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+		break;
+
+	case cmd_ret_802_11_tpc_cfg:
+		spin_lock_irqsave(&adapter->driver_lock, flags);
+		memmove(adapter->cur_cmd->pdata_buf,
+			&resp->params.tpccfg,
+			sizeof(struct cmd_ds_802_11_tpc_cfg));
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+		break;
+	case cmd_ret_802_11_led_gpio_ctrl:
+		spin_lock_irqsave(&adapter->driver_lock, flags);
+		memmove(adapter->cur_cmd->pdata_buf,
+			&resp->params.ledgpio,
+			sizeof(struct cmd_ds_802_11_led_ctrl));
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+		break;
+	case cmd_ret_802_11_pwr_cfg:
+		spin_lock_irqsave(&adapter->driver_lock, flags);
+		memmove(adapter->cur_cmd->pdata_buf,
+			&resp->params.pwrcfg,
+			sizeof(struct cmd_ds_802_11_pwr_cfg));
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+
+		break;
+
+	case cmd_ret_get_tsf:
+		spin_lock_irqsave(&adapter->driver_lock, flags);
+		memcpy(priv->adapter->cur_cmd->pdata_buf,
+		       &resp->params.gettsf.tsfvalue, sizeof(u64));
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+		break;
+	case cmd_ret_bt_access:
+		spin_lock_irqsave(&adapter->driver_lock, flags);
+		if (adapter->cur_cmd->pdata_buf)
+			memcpy(adapter->cur_cmd->pdata_buf,
+			       &resp->params.bt.addr1, 2 * ETH_ALEN);
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+		break;
+	case cmd_ret_fwt_access:
+		spin_lock_irqsave(&adapter->driver_lock, flags);
+		if (adapter->cur_cmd->pdata_buf)
+			memcpy(adapter->cur_cmd->pdata_buf,
+			       &resp->params.fwt,
+				sizeof(resp->params.fwt));
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+		break;
+	case cmd_ret_mesh_access:
+		if (adapter->cur_cmd->pdata_buf)
+			memcpy(adapter->cur_cmd->pdata_buf,
+			       &resp->params.mesh,
+			       sizeof(resp->params.mesh));
+		break;
+	case cmd_rte_802_11_tx_rate_query:
+		priv->adapter->txrate = resp->params.txrate.txrate;
+		break;
+	default:
+		lbs_pr_debug(1, "CMD_RESP: Unknown command response %#x\n",
+		       resp->command);
+		break;
+	}
+	return ret;
+}
+
+int libertas_process_rx_command(wlan_private * priv)
+{
+	u16 respcmd;
+	struct cmd_ds_command *resp;
+	wlan_adapter *adapter = priv->adapter;
+	int ret = 0;
+	ulong flags;
+	u16 result;
+
+	ENTER();
+
+	lbs_pr_debug(1, "CMD_RESP: @ %lu\n", jiffies);
+
+	/* Now we got response from FW, cancel the command timer */
+	del_timer(&adapter->command_timer);
+
+	mutex_lock(&adapter->lock);
+	spin_lock_irqsave(&adapter->driver_lock, flags);
+
+	if (!adapter->cur_cmd) {
+		lbs_pr_debug(1, "CMD_RESP: NULL cur_cmd=%p\n", adapter->cur_cmd);
+		ret = -1;
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+		goto done;
+	}
+	resp = (struct cmd_ds_command *)(adapter->cur_cmd->bufvirtualaddr);
+
+	lbs_dbg_hex("CMD_RESP:", adapter->cur_cmd->bufvirtualaddr,
+		priv->wlan_dev.upld_len);
+
+	respcmd = le16_to_cpu(resp->command);
+
+	result = le16_to_cpu(resp->result);
+
+	lbs_pr_debug(1, "CMD_RESP: %x result: %d length: %d\n", respcmd,
+	       result, priv->wlan_dev.upld_len);
+
+	if (!(respcmd & 0x8000)) {
+		lbs_pr_debug(1, "Invalid response to command!");
+		adapter->cur_cmd_retcode = -1;
+		__libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
+		adapter->nr_cmd_pending--;
+		adapter->cur_cmd = NULL;
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+		ret = -1;
+		goto done;
+	}
+
+	/* Store the response code to cur_cmd_retcode. */
+	adapter->cur_cmd_retcode = le16_to_cpu(resp->result);
+
+	if (respcmd == cmd_ret_802_11_ps_mode) {
+		struct cmd_ds_802_11_ps_mode *psmode;
+
+		psmode = &resp->params.psmode;
+		lbs_pr_debug(1,
+		       "CMD_RESP: PS_MODE cmd reply result=%#x action=0x%X\n",
+		       resp->result, psmode->action);
+		psmode->action = cpu_to_le16(psmode->action);
+
+		if (result) {
+			lbs_pr_debug(1, "CMD_RESP: PS command failed- %#x \n",
+			       resp->result);
+			if (adapter->inframode == wlan802_11ibss) {
+				/*
+				 * We should not re-try enter-ps command in
+				 * ad-hoc mode. It takes place in
+				 * libertas_execute_next_command().
+				 */
+				if (psmode->action == cmd_subcmd_enter_ps)
+					adapter->psmode =
+					    wlan802_11powermodecam;
+			}
+		} else if (psmode->action == cmd_subcmd_enter_ps) {
+			adapter->needtowakeup = 0;
+			adapter->psstate = PS_STATE_AWAKE;
+
+			lbs_pr_debug(1, "CMD_RESP: Enter_PS command response\n");
+			if (adapter->connect_status != libertas_connected) {
+				/*
+				 * When Deauth Event received before Enter_PS command
+				 * response, We need to wake up the firmware.
+				 */
+				lbs_pr_debug(1,
+				       "Disconnected, Going to invoke libertas_ps_wakeup\n");
+
+				mutex_unlock(&adapter->lock);
+				spin_unlock_irqrestore(&adapter->driver_lock, flags);
+				libertas_ps_wakeup(priv, 0);
+				mutex_lock(&adapter->lock);
+				spin_lock_irqsave(&adapter->driver_lock, flags);
+			}
+		} else if (psmode->action == cmd_subcmd_exit_ps) {
+			adapter->needtowakeup = 0;
+			adapter->psstate = PS_STATE_FULL_POWER;
+			lbs_pr_debug(1, "CMD_RESP: Exit_PS command response\n");
+		} else {
+			lbs_pr_debug(1, "CMD_RESP: PS- action=0x%X\n",
+			       psmode->action);
+		}
+
+		__libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
+		adapter->nr_cmd_pending--;
+		adapter->cur_cmd = NULL;
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+
+		ret = 0;
+		goto done;
+	}
+
+	if (adapter->cur_cmd->cmdflags & CMD_F_HOSTCMD) {
+		/* Copy the response back to response buffer */
+		memcpy(adapter->cur_cmd->pdata_buf, resp, resp->size);
+
+		adapter->cur_cmd->cmdflags &= ~CMD_F_HOSTCMD;
+	}
+
+	/* If the command is not successful, cleanup and return failure */
+	if ((result != 0 || !(respcmd & 0x8000))) {
+		lbs_pr_debug(1, "CMD_RESP: command reply %#x result=%#x\n",
+		       resp->command, resp->result);
+		/*
+		 * Handling errors here
+		 */
+		switch (respcmd) {
+		case cmd_ret_hw_spec_info:
+		case cmd_ret_802_11_reset:
+			lbs_pr_debug(1, "CMD_RESP: Reset command failed\n");
+			break;
+
+		}
+
+		__libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
+		adapter->nr_cmd_pending--;
+		adapter->cur_cmd = NULL;
+		spin_unlock_irqrestore(&adapter->driver_lock, flags);
+
+		ret = -1;
+		goto done;
+	}
+
+	spin_unlock_irqrestore(&adapter->driver_lock, flags);
+
+	ret = handle_cmd_response(respcmd, resp, priv);
+
+	spin_lock_irqsave(&adapter->driver_lock, flags);
+	if (adapter->cur_cmd) {
+		/* Clean up and Put current command back to cmdfreeq */
+		__libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
+		adapter->nr_cmd_pending--;
+		WARN_ON(adapter->nr_cmd_pending > 128);
+		adapter->cur_cmd = NULL;
+	}
+	spin_unlock_irqrestore(&adapter->driver_lock, flags);
+
+done:
+	mutex_unlock(&adapter->lock);
+	LEAVE();
+	return ret;
+}
+
+int libertas_process_event(wlan_private * priv)
+{
+	int ret = 0;
+	wlan_adapter *adapter = priv->adapter;
+	u32 eventcause;
+
+	spin_lock_irq(&adapter->driver_lock);
+	eventcause = adapter->eventcause;
+	spin_unlock_irq(&adapter->driver_lock);
+
+	ENTER();
+
+	lbs_pr_debug(1, "EVENT Cause %x\n", eventcause);
+
+	switch (eventcause >> SBI_EVENT_CAUSE_SHIFT) {
+	case MACREG_INT_CODE_LINK_SENSED:
+		lbs_pr_debug(1, "EVENT: MACREG_INT_CODE_LINK_SENSED\n");
+		break;
+
+	case MACREG_INT_CODE_DEAUTHENTICATED:
+		lbs_pr_debug(1, "EVENT: Deauthenticated\n");
+		libertas_mac_event_disconnected(priv);
+		break;
+
+	case MACREG_INT_CODE_DISASSOCIATED:
+		lbs_pr_debug(1, "EVENT: Disassociated\n");
+		libertas_mac_event_disconnected(priv);
+		break;
+
+	case MACREG_INT_CODE_LINK_LOSE_NO_SCAN:
+		lbs_pr_debug(1, "EVENT: Link lost\n");
+		libertas_mac_event_disconnected(priv);
+		break;
+
+	case MACREG_INT_CODE_PS_SLEEP:
+		lbs_pr_debug(1, "EVENT: SLEEP\n");
+		lbs_pr_debug(1, "_");
+
+		/* handle unexpected PS SLEEP event */
+		if (adapter->psstate == PS_STATE_FULL_POWER) {
+			lbs_pr_debug(1,
+			       "EVENT: In FULL POWER mode - ignore PS SLEEP\n");
+			break;
+		}
+		adapter->psstate = PS_STATE_PRE_SLEEP;
+
+		libertas_ps_confirm_sleep(priv, (u16) adapter->psmode);
+
+		break;
+
+	case MACREG_INT_CODE_PS_AWAKE:
+		lbs_pr_debug(1, "EVENT: AWAKE \n");
+		lbs_pr_debug(1, "|");
+
+		/* handle unexpected PS AWAKE event */
+		if (adapter->psstate == PS_STATE_FULL_POWER) {
+			lbs_pr_debug(1,
+			       "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
+			break;
+		}
+
+		adapter->psstate = PS_STATE_AWAKE;
+
+		if (adapter->needtowakeup) {
+			/*
+			 * wait for the command processing to finish
+			 * before resuming sending
+			 * adapter->needtowakeup will be set to FALSE
+			 * in libertas_ps_wakeup()
+			 */
+			lbs_pr_debug(1, "Waking up...\n");
+			libertas_ps_wakeup(priv, 0);
+		}
+		break;
+
+	case MACREG_INT_CODE_MIC_ERR_UNICAST:
+		lbs_pr_debug(1, "EVENT: UNICAST MIC ERROR\n");
+		handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
+		break;
+
+	case MACREG_INT_CODE_MIC_ERR_MULTICAST:
+		lbs_pr_debug(1, "EVENT: MULTICAST MIC ERROR\n");
+		handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
+		break;
+	case MACREG_INT_CODE_MIB_CHANGED:
+	case MACREG_INT_CODE_INIT_DONE:
+		break;
+
+	case MACREG_INT_CODE_ADHOC_BCN_LOST:
+		lbs_pr_debug(1, "EVENT: HWAC - ADHOC BCN LOST\n");
+		break;
+
+	case MACREG_INT_CODE_RSSI_LOW:
+		lbs_pr_alert( "EVENT: RSSI_LOW\n");
+		break;
+	case MACREG_INT_CODE_SNR_LOW:
+		lbs_pr_alert( "EVENT: SNR_LOW\n");
+		break;
+	case MACREG_INT_CODE_MAX_FAIL:
+		lbs_pr_alert( "EVENT: MAX_FAIL\n");
+		break;
+	case MACREG_INT_CODE_RSSI_HIGH:
+		lbs_pr_alert( "EVENT: RSSI_HIGH\n");
+		break;
+	case MACREG_INT_CODE_SNR_HIGH:
+		lbs_pr_alert( "EVENT: SNR_HIGH\n");
+		break;
+
+	default:
+		lbs_pr_alert( "EVENT: unknown event id: %#x\n",
+		       eventcause >> SBI_EVENT_CAUSE_SHIFT);
+		break;
+	}
+
+	spin_lock_irq(&adapter->driver_lock);
+	adapter->eventcause = 0;
+	spin_unlock_irq(&adapter->driver_lock);
+	LEAVE();
+	return ret;
+}