1 files changed, 407 insertions, 360 deletions

diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index cdb9b9650d7..70745928f3f 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -6,18 +6,14 @@
 #include <linux/kfifo.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/if_arp.h>
 
-#include "host.h"
 #include "decl.h"
-#include "defs.h"
-#include "dev.h"
-#include "assoc.h"
-#include "wext.h"
-#include "scan.h"
+#include "cfg.h"
 #include "cmd.h"
 
-
-static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
+#define CAL_NF(nf)		((s32)(-(s32)(nf)))
+#define CAL_RSSI(snr, nf)	((s32)((s32)(snr) + CAL_NF(nf)))
 
 /**
  *  @brief Simple callback that copies response back into command
@@ -70,6 +66,8 @@ static u8 is_command_allowed_in_ps(u16 cmd)
 	switch (cmd) {
 	case CMD_802_11_RSSI:
 		return 1;
+	case CMD_802_11_HOST_SLEEP_CFG:
+		return 1;
 	default:
 		break;
 	}
@@ -77,30 +75,6 @@ static u8 is_command_allowed_in_ps(u16 cmd)
 }
 
 /**
- *  @brief This function checks if the command is allowed.
- *
- *  @param priv         A pointer to lbs_private structure
- *  @return             allowed or not allowed.
- */
-
-static int lbs_is_cmd_allowed(struct lbs_private *priv)
-{
-	int ret = 1;
-
-	lbs_deb_enter(LBS_DEB_CMD);
-
-	if (!priv->is_auto_deep_sleep_enabled) {
-		if (priv->is_deep_sleep) {
-			lbs_deb_cmd("command not allowed in deep sleep\n");
-			ret = 0;
-		}
-	}
-
-	lbs_deb_leave(LBS_DEB_CMD);
-	return ret;
-}
-
-/**
  *  @brief Updates the hardware details like MAC address and regulatory region
  *
  *  @param priv    	A pointer to struct lbs_private structure
@@ -175,16 +149,28 @@ int lbs_update_hw_spec(struct lbs_private *priv)
 	if (priv->mesh_dev)
 		memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
 
-	if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
-		ret = -1;
-		goto out;
-	}
-
 out:
 	lbs_deb_leave(LBS_DEB_CMD);
 	return ret;
 }
 
+static int lbs_ret_host_sleep_cfg(struct lbs_private *priv, unsigned long dummy,
+			struct cmd_header *resp)
+{
+	lbs_deb_enter(LBS_DEB_CMD);
+	if (priv->is_host_sleep_activated) {
+		priv->is_host_sleep_configured = 0;
+		if (priv->psstate == PS_STATE_FULL_POWER) {
+			priv->is_host_sleep_activated = 0;
+			wake_up_interruptible(&priv->host_sleep_q);
+		}
+	} else {
+		priv->is_host_sleep_configured = 1;
+	}
+	lbs_deb_leave(LBS_DEB_CMD);
+	return 0;
+}
+
 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
 		struct wol_config *p_wol_config)
 {
@@ -202,12 +188,11 @@ int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
 	else
 		cmd_config.wol_conf.action = CMD_ACT_ACTION_NONE;
 
-	ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
+	ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config.hdr,
+			le16_to_cpu(cmd_config.hdr.size),
+			lbs_ret_host_sleep_cfg, 0);
 	if (!ret) {
-		if (criteria) {
-			lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
-			priv->wol_criteria = criteria;
-		} else
+		if (p_wol_config)
 			memcpy((uint8_t *) p_wol_config,
 					(uint8_t *)&cmd_config.wol_conf,
 					sizeof(struct wol_config));
@@ -219,42 +204,49 @@ int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
 }
 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
 
-static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
-				   u16 cmd_action)
+/**
+ *  @brief Sets the Power Save mode
+ *
+ *  @param priv    	A pointer to struct lbs_private structure
+ *  @param cmd_action	The Power Save operation (PS_MODE_ACTION_ENTER_PS or
+ *                         PS_MODE_ACTION_EXIT_PS)
+ *  @param block	Whether to block on a response or not
+ *
+ *  @return 	   	0 on success, error on failure
+ */
+int lbs_set_ps_mode(struct lbs_private *priv, u16 cmd_action, bool block)
 {
-	struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
+	struct cmd_ds_802_11_ps_mode cmd;
+	int ret = 0;
 
 	lbs_deb_enter(LBS_DEB_CMD);
 
-	cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
-	cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
-				sizeof(struct cmd_header));
-	psm->action = cpu_to_le16(cmd_action);
-	psm->multipledtim = 0;
-	switch (cmd_action) {
-	case CMD_SUBCMD_ENTER_PS:
-		lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
-
-		psm->locallisteninterval = 0;
-		psm->nullpktinterval = 0;
-		psm->multipledtim =
-		    cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
-		break;
-
-	case CMD_SUBCMD_EXIT_PS:
-		lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
-		break;
-
-	case CMD_SUBCMD_SLEEP_CONFIRMED:
-		lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
-		break;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(cmd_action);
 
-	default:
-		break;
+	if (cmd_action == PS_MODE_ACTION_ENTER_PS) {
+		lbs_deb_cmd("PS_MODE: action ENTER_PS\n");
+		cmd.multipledtim = cpu_to_le16(1);  /* Default DTIM multiple */
+	} else if (cmd_action == PS_MODE_ACTION_EXIT_PS) {
+		lbs_deb_cmd("PS_MODE: action EXIT_PS\n");
+	} else {
+		/* We don't handle CONFIRM_SLEEP here because it needs to
+		 * be fastpathed to the firmware.
+		 */
+		lbs_deb_cmd("PS_MODE: unknown action 0x%X\n", cmd_action);
+		ret = -EOPNOTSUPP;
+		goto out;
 	}
 
-	lbs_deb_leave(LBS_DEB_CMD);
-	return 0;
+	if (block)
+		ret = lbs_cmd_with_response(priv, CMD_802_11_PS_MODE, &cmd);
+	else
+		lbs_cmd_async(priv, CMD_802_11_PS_MODE, &cmd.hdr, sizeof (cmd));
+
+out:
+	lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
+	return ret;
 }
 
 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
@@ -353,6 +345,65 @@ int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep)
 	return ret;
 }
 
+static int lbs_ret_host_sleep_activate(struct lbs_private *priv,
+		unsigned long dummy,
+		struct cmd_header *cmd)
+{
+	lbs_deb_enter(LBS_DEB_FW);
+	priv->is_host_sleep_activated = 1;
+	wake_up_interruptible(&priv->host_sleep_q);
+	lbs_deb_leave(LBS_DEB_FW);
+	return 0;
+}
+
+int lbs_set_host_sleep(struct lbs_private *priv, int host_sleep)
+{
+	struct cmd_header cmd;
+	int ret = 0;
+	uint32_t criteria = EHS_REMOVE_WAKEUP;
+
+	lbs_deb_enter(LBS_DEB_CMD);
+
+	if (host_sleep) {
+		if (priv->is_host_sleep_activated != 1) {
+			memset(&cmd, 0, sizeof(cmd));
+			ret = lbs_host_sleep_cfg(priv, priv->wol_criteria,
+					(struct wol_config *)NULL);
+			if (ret) {
+				lbs_pr_info("Host sleep configuration failed: "
+						"%d\n", ret);
+				return ret;
+			}
+			if (priv->psstate == PS_STATE_FULL_POWER) {
+				ret = __lbs_cmd(priv,
+						CMD_802_11_HOST_SLEEP_ACTIVATE,
+						&cmd,
+						sizeof(cmd),
+						lbs_ret_host_sleep_activate, 0);
+				if (ret)
+					lbs_pr_info("HOST_SLEEP_ACTIVATE "
+							"failed: %d\n", ret);
+			}
+
+			if (!wait_event_interruptible_timeout(
+						priv->host_sleep_q,
+						priv->is_host_sleep_activated,
+						(10 * HZ))) {
+				lbs_pr_err("host_sleep_q: timer expired\n");
+				ret = -1;
+			}
+		} else {
+			lbs_pr_err("host sleep: already enabled\n");
+		}
+	} else {
+		if (priv->is_host_sleep_activated)
+			ret = lbs_host_sleep_cfg(priv, criteria,
+					(struct wol_config *)NULL);
+	}
+
+	return ret;
+}
+
 /**
  *  @brief Set an SNMP MIB value
  *
@@ -509,23 +560,35 @@ int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
 	return ret;
 }
 
-static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
-				      u16 cmd_action, void *pdata_buf)
+/**
+ *  @brief Enable or disable monitor mode (only implemented on OLPC usb8388 FW)
+ *
+ *  @param priv        A pointer to struct lbs_private structure
+ *  @param enable      1 to enable monitor mode, 0 to disable
+ *
+ *  @return            0 on success, error on failure
+ */
+int lbs_set_monitor_mode(struct lbs_private *priv, int enable)
 {
-	struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
+	struct cmd_ds_802_11_monitor_mode cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	if (enable)
+		cmd.mode = cpu_to_le16(0x1);
 
-	cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
-	cmd->size =
-	    cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
-			     sizeof(struct cmd_header));
+	lbs_deb_cmd("SET_MONITOR_MODE: %d\n", enable);
 
-	monitor->action = cpu_to_le16(cmd_action);
-	if (cmd_action == CMD_ACT_SET) {
-		monitor->mode =
-		    cpu_to_le16((u16) (*(u32 *) pdata_buf));
+	ret = lbs_cmd_with_response(priv, CMD_802_11_MONITOR_MODE, &cmd);
+	if (ret == 0) {
+		priv->dev->type = enable ? ARPHRD_IEEE80211_RADIOTAP :
+						ARPHRD_ETHER;
 	}
 
-	return 0;
+	lbs_deb_leave(LBS_DEB_CMD);
+	return ret;
 }
 
 /**
@@ -610,78 +673,242 @@ out:
 	return ret;
 }
 
-static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
-			       u8 cmd_action, void *pdata_buf)
+/**
+ *  @brief Get current RSSI and noise floor
+ *
+ *  @param priv		A pointer to struct lbs_private structure
+ *  @param rssi		On successful return, signal level in mBm
+ *
+ *  @return 	   	The channel on success, error on failure
+ */
+int lbs_get_rssi(struct lbs_private *priv, s8 *rssi, s8 *nf)
 {
-	struct lbs_offset_value *offval;
+	struct cmd_ds_802_11_rssi cmd;
+	int ret = 0;
 
 	lbs_deb_enter(LBS_DEB_CMD);
 
-	offval = (struct lbs_offset_value *)pdata_buf;
+	BUG_ON(rssi == NULL);
+	BUG_ON(nf == NULL);
 
-	switch (le16_to_cpu(cmdptr->command)) {
-	case CMD_MAC_REG_ACCESS:
-		{
-			struct cmd_ds_mac_reg_access *macreg;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	/* Average SNR over last 8 beacons */
+	cmd.n_or_snr = cpu_to_le16(8);
 
-			cmdptr->size =
-			    cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
-					+ sizeof(struct cmd_header));
-			macreg =
-			    (struct cmd_ds_mac_reg_access *)&cmdptr->params.
-			    macreg;
+	ret = lbs_cmd_with_response(priv, CMD_802_11_RSSI, &cmd);
+	if (ret == 0) {
+		*nf = CAL_NF(le16_to_cpu(cmd.nf));
+		*rssi = CAL_RSSI(le16_to_cpu(cmd.n_or_snr), le16_to_cpu(cmd.nf));
+	}
 
-			macreg->action = cpu_to_le16(cmd_action);
-			macreg->offset = cpu_to_le16((u16) offval->offset);
-			macreg->value = cpu_to_le32(offval->value);
+	lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
+	return ret;
+}
 
-			break;
-		}
+/**
+ *  @brief Send regulatory and 802.11d domain information to the firmware
+ *
+ *  @param priv		pointer to struct lbs_private
+ *  @param request	cfg80211 regulatory request structure
+ *  @param bands	the device's supported bands and channels
+ *
+ *  @return		0 on success, error code on failure
+*/
+int lbs_set_11d_domain_info(struct lbs_private *priv,
+			    struct regulatory_request *request,
+			    struct ieee80211_supported_band **bands)
+{
+	struct cmd_ds_802_11d_domain_info cmd;
+	struct mrvl_ie_domain_param_set *domain = &cmd.domain;
+	struct ieee80211_country_ie_triplet *t;
+	enum ieee80211_band band;
+	struct ieee80211_channel *ch;
+	u8 num_triplet = 0;
+	u8 num_parsed_chan = 0;
+	u8 first_channel = 0, next_chan = 0, max_pwr = 0;
+	u8 i, flag = 0;
+	size_t triplet_size;
+	int ret;
 
-	case CMD_BBP_REG_ACCESS:
-		{
-			struct cmd_ds_bbp_reg_access *bbpreg;
+	lbs_deb_enter(LBS_DEB_11D);
 
-			cmdptr->size =
-			    cpu_to_le16(sizeof
-					     (struct cmd_ds_bbp_reg_access)
-					     + sizeof(struct cmd_header));
-			bbpreg =
-			    (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
-			    bbpreg;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
 
-			bbpreg->action = cpu_to_le16(cmd_action);
-			bbpreg->offset = cpu_to_le16((u16) offval->offset);
-			bbpreg->value = (u8) offval->value;
+	lbs_deb_11d("Setting country code '%c%c'\n",
+		    request->alpha2[0], request->alpha2[1]);
 
-			break;
-		}
+	domain->header.type = cpu_to_le16(TLV_TYPE_DOMAIN);
 
-	case CMD_RF_REG_ACCESS:
-		{
-			struct cmd_ds_rf_reg_access *rfreg;
+	/* Set country code */
+	domain->country_code[0] = request->alpha2[0];
+	domain->country_code[1] = request->alpha2[1];
+	domain->country_code[2] = ' ';
 
-			cmdptr->size =
-			    cpu_to_le16(sizeof
-					     (struct cmd_ds_rf_reg_access) +
-					     sizeof(struct cmd_header));
-			rfreg =
-			    (struct cmd_ds_rf_reg_access *)&cmdptr->params.
-			    rfreg;
+	/* Now set up the channel triplets; firmware is somewhat picky here
+	 * and doesn't validate channel numbers and spans; hence it would
+	 * interpret a triplet of (36, 4, 20) as channels 36, 37, 38, 39.  Since
+	 * the last 3 aren't valid channels, the driver is responsible for
+	 * splitting that up into 4 triplet pairs of (36, 1, 20) + (40, 1, 20)
+	 * etc.
+	 */
+	for (band = 0;
+	     (band < IEEE80211_NUM_BANDS) && (num_triplet < MAX_11D_TRIPLETS);
+	     band++) {
+
+		if (!bands[band])
+			continue;
+
+		for (i = 0;
+		     (i < bands[band]->n_channels) && (num_triplet < MAX_11D_TRIPLETS);
+		     i++) {
+			ch = &bands[band]->channels[i];
+			if (ch->flags & IEEE80211_CHAN_DISABLED)
+				continue;
+
+			if (!flag) {
+				flag = 1;
+				next_chan = first_channel = (u32) ch->hw_value;
+				max_pwr = ch->max_power;
+				num_parsed_chan = 1;
+				continue;
+			}
 
-			rfreg->action = cpu_to_le16(cmd_action);
-			rfreg->offset = cpu_to_le16((u16) offval->offset);
-			rfreg->value = (u8) offval->value;
+			if ((ch->hw_value == next_chan + 1) &&
+					(ch->max_power == max_pwr)) {
+				/* Consolidate adjacent channels */
+				next_chan++;
+				num_parsed_chan++;
+			} else {
+				/* Add this triplet */
+				lbs_deb_11d("11D triplet (%d, %d, %d)\n",
+					first_channel, num_parsed_chan,
+					max_pwr);
+				t = &domain->triplet[num_triplet];
+				t->chans.first_channel = first_channel;
+				t->chans.num_channels = num_parsed_chan;
+				t->chans.max_power = max_pwr;
+				num_triplet++;
+				flag = 0;
+			}
+		}
 
-			break;
+		if (flag) {
+			/* Add last triplet */
+			lbs_deb_11d("11D triplet (%d, %d, %d)\n", first_channel,
+				num_parsed_chan, max_pwr);
+			t = &domain->triplet[num_triplet];
+			t->chans.first_channel = first_channel;
+			t->chans.num_channels = num_parsed_chan;
+			t->chans.max_power = max_pwr;
+			num_triplet++;
 		}
+	}
 
-	default:
-		break;
+	lbs_deb_11d("# triplets %d\n", num_triplet);
+
+	/* Set command header sizes */
+	triplet_size = num_triplet * sizeof(struct ieee80211_country_ie_triplet);
+	domain->header.len = cpu_to_le16(sizeof(domain->country_code) +
+					triplet_size);
+
+	lbs_deb_hex(LBS_DEB_11D, "802.11D domain param set",
+			(u8 *) &cmd.domain.country_code,
+			le16_to_cpu(domain->header.len));
+
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd.hdr) +
+				   sizeof(cmd.action) +
+				   sizeof(cmd.domain.header) +
+				   sizeof(cmd.domain.country_code) +
+				   triplet_size);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11D_DOMAIN_INFO, &cmd);
+
+	lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret);
+	return ret;
+}
+
+/**
+ *  @brief Read a MAC, Baseband, or RF register
+ *
+ *  @param priv		pointer to struct lbs_private
+ *  @param cmd		register command, one of CMD_MAC_REG_ACCESS,
+ *                        CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
+ *  @param offset       byte offset of the register to get
+ *  @param value        on success, the value of the register at 'offset'
+ *
+ *  @return		0 on success, error code on failure
+*/
+int lbs_get_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 *value)
+{
+	struct cmd_ds_reg_access cmd;
+	int ret = 0;
+
+	lbs_deb_enter(LBS_DEB_CMD);
+
+	BUG_ON(value == NULL);
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_GET);
+
+	if (reg != CMD_MAC_REG_ACCESS &&
+	    reg != CMD_BBP_REG_ACCESS &&
+	    reg != CMD_RF_REG_ACCESS) {
+		ret = -EINVAL;
+		goto out;
 	}
 
-	lbs_deb_leave(LBS_DEB_CMD);
-	return 0;
+	ret = lbs_cmd_with_response(priv, reg, &cmd);
+	if (ret) {
+		if (reg == CMD_BBP_REG_ACCESS || reg == CMD_RF_REG_ACCESS)
+			*value = cmd.value.bbp_rf;
+		else if (reg == CMD_MAC_REG_ACCESS)
+			*value = le32_to_cpu(cmd.value.mac);
+	}
+
+out:
+	lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
+	return ret;
+}
+
+/**
+ *  @brief Write a MAC, Baseband, or RF register
+ *
+ *  @param priv		pointer to struct lbs_private
+ *  @param cmd		register command, one of CMD_MAC_REG_ACCESS,
+ *                        CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
+ *  @param offset       byte offset of the register to set
+ *  @param value        the value to write to the register at 'offset'
+ *
+ *  @return		0 on success, error code on failure
+*/
+int lbs_set_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 value)
+{
+	struct cmd_ds_reg_access cmd;
+	int ret = 0;
+
+	lbs_deb_enter(LBS_DEB_CMD);
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+
+	if (reg == CMD_BBP_REG_ACCESS || reg == CMD_RF_REG_ACCESS)
+		cmd.value.bbp_rf = (u8) (value & 0xFF);
+	else if (reg == CMD_MAC_REG_ACCESS)
+		cmd.value.mac = cpu_to_le32(value);
+	else {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = lbs_cmd_with_response(priv, reg, &cmd);
+
+out:
+	lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
+	return ret;
 }
 
 static void lbs_queue_cmd(struct lbs_private *priv,
@@ -704,14 +931,17 @@ static void lbs_queue_cmd(struct lbs_private *priv,
 
 	/* Exit_PS command needs to be queued in the header always. */
 	if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
-		struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
+		struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf;
 
-		if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
+		if (psm->action == cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) {
 			if (priv->psstate != PS_STATE_FULL_POWER)
 				addtail = 0;
 		}
 	}
 
+	if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_WAKEUP_CONFIRM)
+		addtail = 0;
+
 	spin_lock_irqsave(&priv->driver_lock, flags);
 
 	if (addtail)
@@ -744,7 +974,6 @@ static void lbs_submit_command(struct lbs_private *priv,
 
 	spin_lock_irqsave(&priv->driver_lock, flags);
 	priv->cur_cmd = cmdnode;
-	priv->cur_cmd_retcode = 0;
 	spin_unlock_irqrestore(&priv->driver_lock, flags);
 
 	cmdsize = le16_to_cpu(cmd->size);
@@ -817,9 +1046,6 @@ static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
 			  int result)
 {
-	if (cmd == priv->cur_cmd)
-		priv->cur_cmd_retcode = result;
-
 	cmd->result = result;
 	cmd->cmdwaitqwoken = 1;
 	wake_up_interruptible(&cmd->cmdwait_q);
@@ -887,175 +1113,6 @@ void lbs_set_mac_control(struct lbs_private *priv)
 }
 
 /**
- *  @brief This function prepare the command before send to firmware.
- *
- *  @param priv		A pointer to struct lbs_private structure
- *  @param cmd_no	command number
- *  @param cmd_action	command action: GET or SET
- *  @param wait_option	wait option: wait response or not
- *  @param cmd_oid	cmd oid: treated as sub command
- *  @param pdata_buf	A pointer to informaion buffer
- *  @return 		0 or -1
- */
-int lbs_prepare_and_send_command(struct lbs_private *priv,
-			  u16 cmd_no,
-			  u16 cmd_action,
-			  u16 wait_option, u32 cmd_oid, void *pdata_buf)
-{
-	int ret = 0;
-	struct cmd_ctrl_node *cmdnode;
-	struct cmd_ds_command *cmdptr;
-	unsigned long flags;
-
-	lbs_deb_enter(LBS_DEB_HOST);
-
-	if (!priv) {
-		lbs_deb_host("PREP_CMD: priv is NULL\n");
-		ret = -1;
-		goto done;
-	}
-
-	if (priv->surpriseremoved) {
-		lbs_deb_host("PREP_CMD: card removed\n");
-		ret = -1;
-		goto done;
-	}
-
-	if (!lbs_is_cmd_allowed(priv)) {
-		ret = -EBUSY;
-		goto done;
-	}
-
-	cmdnode = lbs_get_cmd_ctrl_node(priv);
-
-	if (cmdnode == NULL) {
-		lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
-
-		/* Wake up main thread to execute next command */
-		wake_up_interruptible(&priv->waitq);
-		ret = -1;
-		goto done;
-	}
-
-	cmdnode->callback = NULL;
-	cmdnode->callback_arg = (unsigned long)pdata_buf;
-
-	cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
-
-	lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
-
-	/* Set sequence number, command and INT option */
-	priv->seqnum++;
-	cmdptr->seqnum = cpu_to_le16(priv->seqnum);
-
-	cmdptr->command = cpu_to_le16(cmd_no);
-	cmdptr->result = 0;
-
-	switch (cmd_no) {
-	case CMD_802_11_PS_MODE:
-		ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
-		break;
-
-	case CMD_MAC_REG_ACCESS:
-	case CMD_BBP_REG_ACCESS:
-	case CMD_RF_REG_ACCESS:
-		ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
-		break;
-
-	case CMD_802_11_MONITOR_MODE:
-		ret = lbs_cmd_802_11_monitor_mode(cmdptr,
-				          cmd_action, pdata_buf);
-		break;
-
-	case CMD_802_11_RSSI:
-		ret = lbs_cmd_802_11_rssi(priv, cmdptr);
-		break;
-
-	case CMD_802_11_SET_AFC:
-	case CMD_802_11_GET_AFC:
-
-		cmdptr->command = cpu_to_le16(cmd_no);
-		cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
-					   sizeof(struct cmd_header));
-
-		memmove(&cmdptr->params.afc,
-			pdata_buf, sizeof(struct cmd_ds_802_11_afc));
-
-		ret = 0;
-		goto done;
-
-	case CMD_802_11_TPC_CFG:
-		cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
-		cmdptr->size =
-		    cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
-				     sizeof(struct cmd_header));
-
-		memmove(&cmdptr->params.tpccfg,
-			pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
-
-		ret = 0;
-		break;
-
-#ifdef CONFIG_LIBERTAS_MESH
-
-	case CMD_BT_ACCESS:
-		ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
-		break;
-
-	case CMD_FWT_ACCESS:
-		ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
-		break;
-
-#endif
-
-	case CMD_802_11_BEACON_CTRL:
-		ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
-		break;
-	case CMD_802_11_DEEP_SLEEP:
-		cmdptr->command = cpu_to_le16(CMD_802_11_DEEP_SLEEP);
-		cmdptr->size = cpu_to_le16(sizeof(struct cmd_header));
-		break;
-	default:
-		lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
-		ret = -1;
-		break;
-	}
-
-	/* return error, since the command preparation failed */
-	if (ret != 0) {
-		lbs_deb_host("PREP_CMD: command preparation failed\n");
-		lbs_cleanup_and_insert_cmd(priv, cmdnode);
-		ret = -1;
-		goto done;
-	}
-
-	cmdnode->cmdwaitqwoken = 0;
-
-	lbs_queue_cmd(priv, cmdnode);
-	wake_up_interruptible(&priv->waitq);
-
-	if (wait_option & CMD_OPTION_WAITFORRSP) {
-		lbs_deb_host("PREP_CMD: wait for response\n");
-		might_sleep();
-		wait_event_interruptible(cmdnode->cmdwait_q,
-					 cmdnode->cmdwaitqwoken);
-	}
-
-	spin_lock_irqsave(&priv->driver_lock, flags);
-	if (priv->cur_cmd_retcode) {
-		lbs_deb_host("PREP_CMD: command failed with return code %d\n",
-		       priv->cur_cmd_retcode);
-		priv->cur_cmd_retcode = 0;
-		ret = -1;
-	}
-	spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-done:
-	lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
-	return ret;
-}
-
-/**
  *  @brief This function allocates the command buffer and link
  *  it to command free queue.
  *
@@ -1148,7 +1205,7 @@ done:
  *  @param priv		A pointer to struct lbs_private structure
  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
  */
-static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
+static struct cmd_ctrl_node *lbs_get_free_cmd_node(struct lbs_private *priv)
 {
 	struct cmd_ctrl_node *tempnode;
 	unsigned long flags;
@@ -1231,10 +1288,10 @@ int lbs_execute_next_command(struct lbs_private *priv)
 			/*
 			 * 1. Non-PS command:
 			 * Queue it. set needtowakeup to TRUE if current state
-			 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
-			 * 2. PS command but not Exit_PS:
+			 * is SLEEP, otherwise call send EXIT_PS.
+			 * 2. PS command but not EXIT_PS:
 			 * Ignore it.
-			 * 3. PS command Exit_PS:
+			 * 3. PS command EXIT_PS:
 			 * Set needtowakeup to TRUE if current state is SLEEP,
 			 * otherwise send this command down to firmware
 			 * immediately.
@@ -1248,8 +1305,11 @@ int lbs_execute_next_command(struct lbs_private *priv)
 					/* w/ new scheme, it will not reach here.
 					   since it is blocked in main_thread. */
 					priv->needtowakeup = 1;
-				} else
-					lbs_ps_wakeup(priv, 0);
+				} else {
+					lbs_set_ps_mode(priv,
+							PS_MODE_ACTION_EXIT_PS,
+							false);
+				}
 
 				ret = 0;
 				goto done;
@@ -1264,7 +1324,7 @@ int lbs_execute_next_command(struct lbs_private *priv)
 				       "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
 				       psm->action);
 				if (psm->action !=
-				    cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
+				    cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) {
 					lbs_deb_host(
 					       "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
 					list_del(&cmdnode->list);
@@ -1303,6 +1363,15 @@ int lbs_execute_next_command(struct lbs_private *priv)
 		 * check if in power save mode, if yes, put the device back
 		 * to PS mode
 		 */
+#ifdef TODO
+		/*
+		 * This was the old code for libertas+wext. Someone that
+		 * understands this beast should re-code it in a sane way.
+		 *
+		 * I actually don't understand why this is related to WPA
+		 * and to connection status, shouldn't powering should be
+		 * independ of such things?
+		 */
 		if ((priv->psmode != LBS802_11POWERMODECAM) &&
 		    (priv->psstate == PS_STATE_FULL_POWER) &&
 		    ((priv->connect_status == LBS_CONNECTED) ||
@@ -1315,15 +1384,19 @@ int lbs_execute_next_command(struct lbs_private *priv)
 					lbs_deb_host(
 					       "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
 					       " go back to PS_SLEEP");
-					lbs_ps_sleep(priv, 0);
+					lbs_set_ps_mode(priv,
+							PS_MODE_ACTION_ENTER_PS,
+							false);
 				}
 			} else {
 				lbs_deb_host(
 				       "EXEC_NEXT_CMD: cmdpendingq empty, "
 				       "go back to PS_SLEEP");
-				lbs_ps_sleep(priv, 0);
+				lbs_set_ps_mode(priv, PS_MODE_ACTION_ENTER_PS,
+						false);
 			}
 		}
+#endif
 	}
 
 	ret = 0;
@@ -1353,6 +1426,11 @@ static void lbs_send_confirmsleep(struct lbs_private *priv)
 	/* We don't get a response on the sleep-confirmation */
 	priv->dnld_sent = DNLD_RES_RECEIVED;
 
+	if (priv->is_host_sleep_configured) {
+		priv->is_host_sleep_activated = 1;
+		wake_up_interruptible(&priv->host_sleep_q);
+	}
+
 	/* If nothing to do, go back to sleep (?) */
 	if (!kfifo_len(&priv->event_fifo) && !priv->resp_len[priv->resp_idx])
 		priv->psstate = PS_STATE_SLEEP;
@@ -1363,43 +1441,6 @@ out:
 	lbs_deb_leave(LBS_DEB_HOST);
 }
 
-void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
-{
-	lbs_deb_enter(LBS_DEB_HOST);
-
-	/*
-	 * PS is currently supported only in Infrastructure mode
-	 * Remove this check if it is to be supported in IBSS mode also
-	 */
-
-	lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
-			      CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
-
-	lbs_deb_leave(LBS_DEB_HOST);
-}
-
-/**
- *  @brief This function sends Exit_PS command to firmware.
- *
- *  @param priv    	A pointer to struct lbs_private structure
- *  @param wait_option	wait response or not
- *  @return 	   	n/a
- */
-void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
-{
-	__le32 Localpsmode;
-
-	lbs_deb_enter(LBS_DEB_HOST);
-
-	Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
-
-	lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
-			      CMD_SUBCMD_EXIT_PS,
-			      wait_option, 0, &Localpsmode);
-
-	lbs_deb_leave(LBS_DEB_HOST);
-}
-
 /**
  *  @brief This function checks condition and prepares to
  *  send sleep confirm command to firmware if ok.
@@ -1524,12 +1565,18 @@ struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
 		goto done;
 	}
 
-	if (!lbs_is_cmd_allowed(priv)) {
-		cmdnode = ERR_PTR(-EBUSY);
-		goto done;
+	/* No commands are allowed in Deep Sleep until we toggle the GPIO
+	 * to wake up the card and it has signaled that it's ready.
+	 */
+	if (!priv->is_auto_deep_sleep_enabled) {
+		if (priv->is_deep_sleep) {
+			lbs_deb_cmd("command not allowed in deep sleep\n");
+			cmdnode = ERR_PTR(-EBUSY);
+			goto done;
+		}
 	}
 
-	cmdnode = lbs_get_cmd_ctrl_node(priv);
+	cmdnode = lbs_get_free_cmd_node(priv);
 	if (cmdnode == NULL) {
 		lbs_deb_host("PREP_CMD: cmdnode is NULL\n");