diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 8ff5798ad641..cb6db4525dc3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -1063,7 +1063,7 @@ static int iwl3945_apm_init(struct iwl_priv *priv)
 {
 	int ret = 0;
 
-	iwl3945_power_init_handle(priv);
+	iwl_power_initialize(priv);
 
 	iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
 			  CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
@@ -2372,7 +2372,9 @@ static u16 iwl3945_get_hcmd_size(u8 cmd_id, u16 len)
 {
 	switch (cmd_id) {
 	case REPLY_RXON:
-		return (u16) sizeof(struct iwl3945_rxon_cmd);
+		return sizeof(struct iwl3945_rxon_cmd);
+	case POWER_TABLE_CMD:
+		return sizeof(struct iwl3945_powertable_cmd);
 	default:
 		return len;
 	}
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 5f92cfbe9267..e18c3f326f71 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1355,8 +1355,8 @@ int iwl_init_drv(struct iwl_priv *priv)
 	priv->qos_data.qos_cap.val = 0;
 
 	priv->rates_mask = IWL_RATES_MASK;
-	/* If power management is turned on, default to AC mode */
-	priv->power_mode = IWL_POWER_AC;
+	/* If power management is turned on, default to CAM mode */
+	priv->power_mode = IWL_POWER_MODE_CAM;
 	priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX;
 
 	ret = iwl_init_channel_map(priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index abe0d2966a56..4c5a775f48b7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -102,6 +102,7 @@ static struct iwl_power_vec_entry range_2[IWL_POWER_MAX] = {
 	{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
 };
 
+
 /* set card power command */
 static int iwl_set_power(struct iwl_priv *priv, void *cmd)
 {
@@ -126,13 +127,6 @@ static u16 iwl_get_auto_power_mode(struct iwl_priv *priv)
 		else
 			mode = IWL_POWER_ON_AC_DISASSOC;
 		break;
-	/* FIXME: remove battery and ac from here */
-	case IWL_POWER_BATTERY:
-		mode = IWL_POWER_INDEX_3;
-		break;
-	case IWL_POWER_AC:
-		mode = IWL_POWER_MODE_CAM;
-		break;
 	default:
 		mode = priv->power_data.user_power_setting;
 		break;
@@ -357,7 +351,7 @@ EXPORT_SYMBOL(iwl_power_enable_management);
 /* set user_power_setting */
 int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
 {
-	if (mode > IWL_POWER_LIMIT)
+	if (mode > IWL_POWER_MAX)
 		return -EINVAL;
 
 	priv->power_data.user_power_setting = mode;
@@ -371,11 +365,10 @@ EXPORT_SYMBOL(iwl_power_set_user_mode);
  */
 int iwl_power_set_system_mode(struct iwl_priv *priv, u16 mode)
 {
-	if (mode > IWL_POWER_LIMIT)
+	if (mode < IWL_POWER_SYS_MAX)
+		priv->power_data.system_power_setting = mode;
+	else
 		return -EINVAL;
-
-	priv->power_data.system_power_setting = mode;
-
 	return iwl_power_update_mode(priv, 0);
 }
 EXPORT_SYMBOL(iwl_power_set_system_mode);
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.h b/drivers/net/wireless/iwlwifi/iwl-power.h
index 859b60b5335c..879eafdd7369 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.h
+++ b/drivers/net/wireless/iwlwifi/iwl-power.h
@@ -42,27 +42,15 @@ enum {
 	IWL_POWER_INDEX_5,
 	IWL_POWER_AUTO,
 	IWL_POWER_MAX = IWL_POWER_AUTO,
-	IWL39_POWER_AC = IWL_POWER_AUTO, /* 0x06 */
-	IWL_POWER_AC,
-	IWL39_POWER_BATTERY = IWL_POWER_AC, /* 0x07 */
-	IWL39_POWER_LIMIT = IWL_POWER_AC,
-	IWL_POWER_BATTERY,
 };
 
 enum {
 	IWL_POWER_SYS_AUTO,
 	IWL_POWER_SYS_AC,
 	IWL_POWER_SYS_BATTERY,
+	IWL_POWER_SYS_MAX,
 };
 
-#define IWL_POWER_LIMIT		0x08
-#define IWL_POWER_MASK		0x0F
-#define IWL_POWER_ENABLED	0x10
-
-#define IWL_POWER_RANGE_0  (0)
-#define IWL_POWER_RANGE_1  (1)
-
-#define IWL_POWER_LEVEL(x)	((x) & IWL_POWER_MASK)
 
 /* Power management (not Tx power) structures */
 
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index ac337177fdb3..800e46c9a68b 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -656,162 +656,6 @@ static void iwl3945_activate_qos(struct iwl_priv *priv, u8 force)
 	}
 }
 
-/*
- * Power management (not Tx power!) functions
- */
-#define MSEC_TO_USEC 1024
-
-
-/* default power management (not Tx power) table values */
-/* for TIM  0-10 */
-static struct iwl_power_vec_entry range_0[IWL_POWER_MAX] = {
-	{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
-	{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
-	{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
-	{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
-	{{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
-	{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
-};
-
-/* for TIM > 10 */
-static struct iwl_power_vec_entry range_1[IWL_POWER_MAX] = {
-	{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
-	{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
-	{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
-	{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
-	{{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
-	{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
-};
-
-int iwl3945_power_init_handle(struct iwl_priv *priv)
-{
-	int rc = 0, i;
-	struct iwl_power_mgr *pow_data;
-	int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_MAX;
-	u16 pci_pm;
-
-	IWL_DEBUG_POWER(priv, "Initialize power \n");
-
-	pow_data = &priv->power_data;
-
-	memset(pow_data, 0, sizeof(*pow_data));
-
-	pow_data->dtim_period = 1;
-
-	memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
-	memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
-
-	rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
-	if (rc != 0)
-		return 0;
-	else {
-		struct iwl_powertable_cmd *cmd;
-
-		IWL_DEBUG_POWER(priv, "adjust power command flags\n");
-
-		for (i = 0; i < IWL_POWER_MAX; i++) {
-			cmd = &pow_data->pwr_range_0[i].cmd;
-
-			if (pci_pm & 0x1)
-				cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
-			else
-				cmd->flags |= IWL_POWER_PCI_PM_MSK;
-		}
-	}
-	return rc;
-}
-
-static int iwl3945_update_power_cmd(struct iwl_priv *priv,
-				struct iwl_powertable_cmd *cmd, u32 mode)
-{
-	struct iwl_power_mgr *pow_data;
-	struct iwl_power_vec_entry *range;
-	u32 max_sleep = 0;
-	int i;
-	u8 period = 0;
-	bool skip;
-
-	if (mode > IWL_POWER_INDEX_5) {
-		IWL_DEBUG_POWER(priv, "Error invalid power mode \n");
-		return -EINVAL;
-	}
-	pow_data = &priv->power_data;
-
-	if (pow_data->dtim_period < 10)
-		range = &pow_data->pwr_range_0[0];
-	else
-		range = &pow_data->pwr_range_1[1];
-
-	memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd));
-
-
-	if (period == 0) {
-		period = 1;
-		skip = false;
-	} else {
-		skip = !!range[mode].no_dtim;
-	}
-
-	if (skip) {
-		__le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
-		max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
-		cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
-	} else {
-		max_sleep = period;
-		cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
-	}
-
-	for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
-		if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
-			cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
-
-	IWL_DEBUG_POWER(priv, "Flags value = 0x%08X\n", cmd->flags);
-	IWL_DEBUG_POWER(priv, "Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
-	IWL_DEBUG_POWER(priv, "Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
-	IWL_DEBUG_POWER(priv, "Sleep interval vector = { %d , %d , %d , %d , %d }\n",
-			le32_to_cpu(cmd->sleep_interval[0]),
-			le32_to_cpu(cmd->sleep_interval[1]),
-			le32_to_cpu(cmd->sleep_interval[2]),
-			le32_to_cpu(cmd->sleep_interval[3]),
-			le32_to_cpu(cmd->sleep_interval[4]));
-
-	return 0;
-}
-
-static int iwl3945_send_power_mode(struct iwl_priv *priv, u32 mode)
-{
-	u32 uninitialized_var(final_mode);
-	int rc;
-	struct iwl_powertable_cmd cmd;
-
-	/* If on battery, set to 3,
-	 * if plugged into AC power, set to CAM ("continuously aware mode"),
-	 * else user level */
-	switch (mode) {
-	case IWL39_POWER_BATTERY:
-		final_mode = IWL_POWER_INDEX_3;
-		break;
-	case IWL39_POWER_AC:
-		final_mode = IWL_POWER_MODE_CAM;
-		break;
-	default:
-		final_mode = mode;
-		break;
-	}
-
-	iwl3945_update_power_cmd(priv, &cmd, final_mode);
-
-	/* FIXME use get_hcmd_size 3945 command is 4 bytes shorter */
-	rc = iwl_send_cmd_pdu(priv, POWER_TABLE_CMD,
-			      sizeof(struct iwl3945_powertable_cmd), &cmd);
-
-	if (final_mode == IWL_POWER_MODE_CAM)
-		clear_bit(STATUS_POWER_PMI, &priv->status);
-	else
-		set_bit(STATUS_POWER_PMI, &priv->status);
-
-	return rc;
-}
 
 #define MAX_UCODE_BEACON_INTERVAL	1024
 #define INTEL_CONN_LISTEN_INTERVAL	__constant_cpu_to_le16(0xA)
@@ -3467,7 +3311,7 @@ static void iwl3945_alive_start(struct iwl_priv *priv)
 	priv->active_rate = priv->rates_mask;
 	priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
 
-	iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
+	iwl_power_update_mode(priv, false);
 
 	if (iwl_is_associated(priv)) {
 		struct iwl3945_rxon_cmd *active_rxon =
@@ -5136,44 +4980,70 @@ static ssize_t show_retry_rate(struct device *d,
 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
 		   store_retry_rate);
 
+
 static ssize_t store_power_level(struct device *d,
 				 struct device_attribute *attr,
 				 const char *buf, size_t count)
 {
 	struct iwl_priv *priv = dev_get_drvdata(d);
-	int rc;
-	int mode;
+	int ret;
+	unsigned long mode;
+
 
-	mode = simple_strtoul(buf, NULL, 0);
 	mutex_lock(&priv->mutex);
 
 	if (!iwl_is_ready(priv)) {
-		rc = -EAGAIN;
+		ret = -EAGAIN;
 		goto out;
 	}
 
-	if ((mode < 1) || (mode > IWL39_POWER_LIMIT) ||
-	    (mode == IWL39_POWER_AC))
-		mode = IWL39_POWER_AC;
-	else
-		mode |= IWL_POWER_ENABLED;
+	ret = strict_strtoul(buf, 10, &mode);
+	if (ret)
+		goto out;
 
-	if (mode != priv->power_mode) {
-		rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode));
-		if (rc) {
-			IWL_DEBUG_MAC80211(priv, "failed setting power mode\n");
-			goto out;
-		}
-		priv->power_mode = mode;
+	ret = iwl_power_set_user_mode(priv, mode);
+	if (ret) {
+		IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n");
+		goto out;
 	}
-
-	rc = count;
+	ret = count;
 
  out:
 	mutex_unlock(&priv->mutex);
-	return rc;
+	return ret;
 }
 
+static ssize_t show_power_level(struct device *d,
+				struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	int mode = priv->power_data.user_power_setting;
+	int system = priv->power_data.system_power_setting;
+	int level = priv->power_data.power_mode;
+	char *p = buf;
+
+	switch (system) {
+	case IWL_POWER_SYS_AUTO:
+		p += sprintf(p, "SYSTEM:auto");
+		break;
+	case IWL_POWER_SYS_AC:
+		p += sprintf(p, "SYSTEM:ac");
+		break;
+	case IWL_POWER_SYS_BATTERY:
+		p += sprintf(p, "SYSTEM:battery");
+		break;
+	}
+
+	p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO) ?
+			"fixed" : "auto");
+	p += sprintf(p, "\tINDEX:%d", level);
+	p += sprintf(p, "\n");
+	return p - buf + 1;
+}
+
+static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR,
+		   show_power_level, store_power_level);
+
 #define MAX_WX_STRING 80
 
 /* Values are in microsecond */
@@ -5192,41 +5062,6 @@ static const s32 period_duration[] = {
 	1000000
 };
 
-static ssize_t show_power_level(struct device *d,
-				struct device_attribute *attr, char *buf)
-{
-	struct iwl_priv *priv = dev_get_drvdata(d);
-	int level = IWL_POWER_LEVEL(priv->power_mode);
-	char *p = buf;
-
-	p += sprintf(p, "%d ", level);
-	switch (level) {
-	case IWL_POWER_MODE_CAM:
-	case IWL39_POWER_AC:
-		p += sprintf(p, "(AC)");
-		break;
-	case IWL39_POWER_BATTERY:
-		p += sprintf(p, "(BATTERY)");
-		break;
-	default:
-		p += sprintf(p,
-			     "(Timeout %dms, Period %dms)",
-			     timeout_duration[level - 1] / 1000,
-			     period_duration[level - 1] / 1000);
-	}
-
-	if (!(priv->power_mode & IWL_POWER_ENABLED))
-		p += sprintf(p, " OFF\n");
-	else
-		p += sprintf(p, " \n");
-
-	return p - buf + 1;
-
-}
-
-static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
-		   store_power_level);
-
 static ssize_t show_channels(struct device *d,
 			     struct device_attribute *attr, char *buf)
 {
@@ -5469,8 +5304,8 @@ static int iwl3945_init_drv(struct iwl_priv *priv)
 	priv->qos_data.qos_cap.val = 0;
 
 	priv->rates_mask = IWL_RATES_MASK;
-	/* If power management is turned on, default to AC mode */
-	priv->power_mode = IWL39_POWER_AC;
+	/* If power management is turned on, default to CAM mode */
+	priv->power_mode = IWL_POWER_MODE_CAM;
 	priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER;
 
 	if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {