iwlwifi: Thermal Throttling Management - part 2 (46f9381a) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/net/wireless/iwlwifi/iwl-agn-rs.c

+39 −9

Original line number	Diff line number	Diff line
		@@ -177,7 +177,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
		struct sk_buff *skb,
		struct ieee80211_sta *sta,
		struct iwl_lq_sta *lq_sta);
		static void rs_fill_link_cmd(const struct iwl_priv *priv,
		static void rs_fill_link_cmd(struct iwl_priv *priv,
		struct iwl_lq_sta *lq_sta, u32 rate_n_flags);


		@@ -1398,6 +1398,12 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
		int ret = 0;
		u8 update_search_tbl_counter = 0;

		if (!iwl_ht_enabled(priv))
		/* stay in Legacy */
		tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
		else if (iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE &&
		tbl->action > IWL_LEGACY_SWITCH_SISO)
		tbl->action = IWL_LEGACY_SWITCH_SISO;
		for (; ;) {
		lq_sta->action_counter++;
		switch (tbl->action) {
		@@ -1529,6 +1535,11 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
		u8 update_search_tbl_counter = 0;
		int ret;

		if (iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE &&
		tbl->action > IWL_SISO_SWITCH_ANTENNA2) {
		/* stay in SISO */
		tbl->action = IWL_SISO_SWITCH_ANTENNA1;
		}
		for (;;) {
		lq_sta->action_counter++;
		switch (tbl->action) {
		@@ -1663,6 +1674,12 @@ static int rs_move_mimo2_to_other(struct iwl_priv *priv,
		u8 update_search_tbl_counter = 0;
		int ret;

		if ((iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE) &&
		(tbl->action < IWL_MIMO2_SWITCH_SISO_A \|\|
		tbl->action > IWL_MIMO2_SWITCH_SISO_C)) {
		/* switch in SISO */
		tbl->action = IWL_MIMO2_SWITCH_SISO_A;
		}
		for (;;) {
		lq_sta->action_counter++;
		switch (tbl->action) {
		@@ -1799,6 +1816,12 @@ static int rs_move_mimo3_to_other(struct iwl_priv *priv,
		int ret;
		u8 update_search_tbl_counter = 0;

		if ((iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE) &&
		(tbl->action < IWL_MIMO3_SWITCH_SISO_A \|\|
		tbl->action > IWL_MIMO3_SWITCH_SISO_C)) {
		/* switch in SISO */
		tbl->action = IWL_MIMO3_SWITCH_SISO_A;
		}
		for (;;) {
		lq_sta->action_counter++;
		switch (tbl->action) {
		@@ -2178,8 +2201,8 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
		tbl->expected_tpt[index] + 64) / 128));

		/* If we are searching for better modulation mode, check success. */
		if (lq_sta->search_better_tbl) {

		if (lq_sta->search_better_tbl &&
		(iwl_tx_ant_restriction(priv) == IWL_TX_MULTI)) {
		/* If good success, continue using the "search" mode;
		* no need to send new link quality command, since we're
		* continuing to use the setup that we've been trying. */
		@@ -2307,7 +2330,11 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
		((sr > IWL_RATE_HIGH_TH) \|\|
		(current_tpt > (100 * tbl->expected_tpt[low]))))
		scale_action = 0;

		if (!iwl_ht_enabled(priv) && !is_legacy(tbl->lq_type))
		scale_action = -1;
		if (iwl_tx_ant_restriction(priv) != IWL_TX_MULTI &&
		(is_mimo2(tbl->lq_type) \|\| is_mimo3(tbl->lq_type)))
		scale_action = -1;
		switch (scale_action) {
		case -1:
		/* Decrease starting rate, update uCode's rate table */
		@@ -2341,9 +2368,11 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
		rate = rs_update_rate_tbl(priv, lq_sta,
		tbl, index, is_green);

		/* Should we stay with this modulation mode, or search for a new one? */
		if (iwl_tx_ant_restriction(priv) == IWL_TX_MULTI) {
		/* Should we stay with this modulation mode,
		* or search for a new one? */
		rs_stay_in_table(lq_sta);

		}
		/*
		* Search for new modulation mode if we're:
		* 1) Not changing rates right now
		@@ -2400,7 +2429,8 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
		* have been tried and compared, stay in this best modulation
		* mode for a while before next round of mode comparisons. */
		if (lq_sta->enable_counter &&
		(lq_sta->action_counter >= tbl1->max_search)) {
		(lq_sta->action_counter >= tbl1->max_search) &&
		iwl_ht_enabled(priv)) {
		if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
		(lq_sta->tx_agg_tid_en & (1 << tid)) &&
		(tid != MAX_TID_COUNT)) {
		@@ -2686,7 +2716,7 @@ static void rs_rate_init(void priv_r, struct ieee80211_supported_band sband,
		rs_initialize_lq(priv, conf, sta, lq_sta);
		}

		static void rs_fill_link_cmd(const struct iwl_priv *priv,
		static void rs_fill_link_cmd(struct iwl_priv *priv,
		struct iwl_lq_sta *lq_sta, u32 new_rate)
		{
		struct iwl_scale_tbl_info tbl_type;

drivers/net/wireless/iwlwifi/iwl-power.c

+281 −4

Original line number	Diff line number	Diff line
		@@ -98,6 +98,45 @@ static const struct iwl_power_vec_entry range_2[IWL_POWER_NUM] = {
		{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
		};

		/* default Thermal Throttling transaction table
		* Current state \| Throttling Down \| Throttling Up
		*=============================================================================
		* Condition Nxt State Condition Nxt State Condition Nxt State
		*-----------------------------------------------------------------------------
		* IWL_TI_0 T >= 115 CT_KILL 115>T>=105 TI_1 N/A N/A
		* IWL_TI_1 T >= 115 CT_KILL 115>T>=110 TI_2 T<=95 TI_0
		* IWL_TI_2 T >= 115 CT_KILL T<=100 TI_1
		* IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0
		*=============================================================================
		*/
		static const struct iwl_tt_trans tt_range_0[IWL_TI_STATE_MAX - 1] = {
		{IWL_TI_0, IWL_ABSOLUTE_ZERO, 104},
		{IWL_TI_1, 105, CT_KILL_THRESHOLD},
		{IWL_TI_CT_KILL, CT_KILL_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
		};
		static const struct iwl_tt_trans tt_range_1[IWL_TI_STATE_MAX - 1] = {
		{IWL_TI_0, IWL_ABSOLUTE_ZERO, 95},
		{IWL_TI_2, 110, CT_KILL_THRESHOLD},
		{IWL_TI_CT_KILL, CT_KILL_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
		};
		static const struct iwl_tt_trans tt_range_2[IWL_TI_STATE_MAX - 1] = {
		{IWL_TI_1, IWL_ABSOLUTE_ZERO, 100},
		{IWL_TI_CT_KILL, CT_KILL_THRESHOLD + 1, IWL_ABSOLUTE_MAX},
		{IWL_TI_CT_KILL, CT_KILL_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
		};
		static const struct iwl_tt_trans tt_range_3[IWL_TI_STATE_MAX - 1] = {
		{IWL_TI_0, IWL_ABSOLUTE_ZERO, CT_KILL_EXIT_THRESHOLD},
		{IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX},
		{IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
		};

		/* Advance Thermal Throttling default restriction table */
		static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = {
		{IWL_TX_MULTI, true, IWL_RX_MULTI},
		{IWL_TX_SINGLE, true, IWL_RX_MULTI},
		{IWL_TX_SINGLE, false, IWL_RX_SINGLE},
		{IWL_TX_NONE, false, IWL_RX_NONE}
		};

		/* set card power command */
		static int iwl_set_power(struct iwl_priv priv, void cmd)
		@@ -273,6 +312,42 @@ int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
		}
		EXPORT_SYMBOL(iwl_power_set_user_mode);

		bool iwl_ht_enabled(struct iwl_priv *priv)
		{
		struct iwl_tt_mgmt *tt = &priv->power_data.tt;
		struct iwl_tt_restriction *restriction;

		if (!priv->power_data.adv_tt)
		return true;
		restriction = tt->restriction + tt->state;
		return restriction->is_ht;
		}
		EXPORT_SYMBOL(iwl_ht_enabled);

		u8 iwl_tx_ant_restriction(struct iwl_priv *priv)
		{
		struct iwl_tt_mgmt *tt = &priv->power_data.tt;
		struct iwl_tt_restriction *restriction;

		if (!priv->power_data.adv_tt)
		return IWL_TX_MULTI;
		restriction = tt->restriction + tt->state;
		return restriction->tx_stream;
		}
		EXPORT_SYMBOL(iwl_tx_ant_restriction);

		u8 iwl_rx_ant_restriction(struct iwl_priv *priv)
		{
		struct iwl_tt_mgmt *tt = &priv->power_data.tt;
		struct iwl_tt_restriction *restriction;

		if (!priv->power_data.adv_tt)
		return IWL_RX_MULTI;
		restriction = tt->restriction + tt->state;
		return restriction->rx_stream;
		}
		EXPORT_SYMBOL(iwl_rx_ant_restriction);

		#define CT_KILL_EXIT_DURATION (5) /* 5 seconds duration */

		/*
		@@ -427,12 +502,147 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
		}
		}

		/*
		* Advance thermal throttling
		* 1) Avoid NIC destruction due to high temperatures
		* Chip will identify dangerously high temperatures that can
		* harm the device and will power down
		* 2) Avoid the NIC power down due to high temperature
		* Throttle early enough to lower the power consumption before
		* drastic steps are needed
		* Actions include relaxing the power down sleep thresholds and
		* decreasing the number of TX streams
		* 3) Avoid throughput performance impact as much as possible
		*
		*=============================================================================
		* Condition Nxt State Condition Nxt State Condition Nxt State
		*-----------------------------------------------------------------------------
		* IWL_TI_0 T >= 115 CT_KILL 115>T>=105 TI_1 N/A N/A
		* IWL_TI_1 T >= 115 CT_KILL 115>T>=110 TI_2 T<=95 TI_0
		* IWL_TI_2 T >= 115 CT_KILL T<=100 TI_1
		* IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0
		*=============================================================================
		*/
		static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
		{
		struct iwl_tt_mgmt *tt = &priv->power_data.tt;
		int i;
		bool changed = false;
		enum iwl_tt_state old_state;
		struct iwl_tt_trans *transaction;

		old_state = tt->state;
		for (i = 0; i < IWL_TI_STATE_MAX - 1; i++) {
		/* based on the current TT state,
		* find the curresponding transaction table
		* each table has (IWL_TI_STATE_MAX - 1) entries
		* tt->transaction + ((old_state * (IWL_TI_STATE_MAX - 1))
		* will advance to the correct table.
		* then based on the current temperature
		* find the next state need to transaction to
		* go through all the possible (IWL_TI_STATE_MAX - 1) entries
		* in the current table to see if transaction is needed
		*/
		transaction = tt->transaction +
		((old_state * (IWL_TI_STATE_MAX - 1)) + i);
		if (temp >= transaction->tt_low &&
		temp <= transaction->tt_high) {
		#ifdef CONFIG_IWLWIFI_DEBUG
		if ((tt->tt_previous_temp) &&
		(temp > tt->tt_previous_temp) &&
		((temp - tt->tt_previous_temp) >
		IWL_TT_INCREASE_MARGIN)) {
		IWL_DEBUG_POWER(priv,
		"Temperature increase %d "
		"degree Celsius\n",
		(temp - tt->tt_previous_temp));
		}
		tt->tt_previous_temp = temp;
		#endif
		if (old_state !=
		transaction->next_state) {
		changed = true;
		tt->state =
		transaction->next_state;
		}
		break;
		}
		}
		if (changed) {
		struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
		struct iwl_power_mgr *setting = &priv->power_data;

		if (tt->state >= IWL_TI_1) {
		/* if switching from IWL_TI_0 to other TT state
		* save previous power setting in tt->sys_power_mode */
		if (old_state == IWL_TI_0)
		tt->sys_power_mode = setting->power_mode;
		/* force PI = IWL_POWER_INDEX_5 in the case of TI > 0 */
		tt->tt_power_mode = IWL_POWER_INDEX_5;
		if (!iwl_ht_enabled(priv))
		/* disable HT */
		rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK \|
		RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK \|
		RXON_FLG_FAT_PROT_MSK \|
		RXON_FLG_HT_PROT_MSK);
		else {
		/* check HT capability and set
		* according to the system HT capability
		* in case get disabled before */
		iwl_set_rxon_ht(priv, &priv->current_ht_config);
		}

		} else {
		/* restore system power setting */
		/* the previous power mode was saved in
		* tt->sys_power_mode when system move into
		* Thermal Throttling state
		* set power_data.user_power_setting to the previous
		* system power mode to make sure power will get
		* updated correctly
		*/
		priv->power_data.user_power_setting =
		tt->sys_power_mode;
		tt->tt_power_mode = tt->sys_power_mode;
		/* check HT capability and set
		* according to the system HT capability
		* in case get disabled before */
		iwl_set_rxon_ht(priv, &priv->current_ht_config);
		}
		if (iwl_power_update_mode(priv, true)) {
		/* TT state not updated
		* try again during next temperature read
		*/
		IWL_ERR(priv, "Cannot update power mode, "
		"TT state not updated\n");
		tt->state = old_state;
		} else {
		IWL_DEBUG_POWER(priv,
		"Thermal Throttling to new state: %u\n",
		tt->state);
		if (old_state != IWL_TI_CT_KILL &&
		tt->state == IWL_TI_CT_KILL) {
		IWL_DEBUG_POWER(priv, "Enter IWL_TI_CT_KILL\n");
		iwl_perform_ct_kill_task(priv, true);

		} else if (old_state == IWL_TI_CT_KILL &&
		tt->state != IWL_TI_CT_KILL) {
		IWL_DEBUG_POWER(priv, "Exit IWL_TI_CT_KILL\n");
		iwl_perform_ct_kill_task(priv, false);
		}
		}
		}
		}

		/* Card State Notification indicated reach critical temperature
		* if PSP not enable, no Thermal Throttling function will be performed
		* just set the GP1 bit to acknowledge the event
		* otherwise, go into IWL_TI_CT_KILL state
		* since Card State Notification will not provide any temperature reading
		* for Legacy mode
		* so just pass the CT_KILL temperature to iwl_legacy_tt_handler()
		* for advance mode
		* pass CT_KILL_THRESHOLD+1 to make sure move into IWL_TI_CT_KILL state
		*/
		void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
		{
		@@ -444,7 +654,12 @@ void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
		if (tt->state != IWL_TI_CT_KILL) {
		IWL_ERR(priv, "Device reached critical temperature "
		"- ucode going to sleep!\n");
		iwl_legacy_tt_handler(priv, IWL_MINIMAL_POWER_THRESHOLD);
		if (!priv->power_data.adv_tt)
		iwl_legacy_tt_handler(priv,
		IWL_MINIMAL_POWER_THRESHOLD);
		else
		iwl_advance_tt_handler(priv,
		CT_KILL_THRESHOLD + 1);
		}
		}
		EXPORT_SYMBOL(iwl_tt_enter_ct_kill);
		@@ -468,8 +683,11 @@ void iwl_tt_exit_ct_kill(struct iwl_priv *priv)
		IWL_ERR(priv,
		"Device temperature below critical"
		"- ucode awake!\n");
		if (!priv->power_data.adv_tt)
		iwl_legacy_tt_handler(priv,
		IWL_REDUCED_PERFORMANCE_THRESHOLD_2);
		else
		iwl_advance_tt_handler(priv, CT_KILL_EXIT_THRESHOLD);
		}
		}
		EXPORT_SYMBOL(iwl_tt_exit_ct_kill);
		@@ -484,16 +702,24 @@ void iwl_tt_handler(struct iwl_priv *priv)
		if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)
		temp = KELVIN_TO_CELSIUS(priv->temperature);

		if (!priv->power_data.adv_tt)
		iwl_legacy_tt_handler(priv, temp);
		else
		iwl_advance_tt_handler(priv, temp);
		}
		EXPORT_SYMBOL(iwl_tt_handler);

		/* Thermal throttling initialization
		* For advance thermal throttling:
		* Initialize Thermal Index and temperature threshold table
		* Initialize thermal throttling restriction table
		*/
		void iwl_tt_initialize(struct iwl_priv *priv)
		{
		struct iwl_tt_mgmt *tt = &priv->power_data.tt;
		struct iwl_power_mgr *setting = &priv->power_data;
		int size = sizeof(struct iwl_tt_trans) * (IWL_TI_STATE_MAX - 1);
		struct iwl_tt_trans *transaction;

		IWL_DEBUG_POWER(priv, "Initialize Thermal Throttling \n");

		@@ -505,14 +731,65 @@ void iwl_tt_initialize(struct iwl_priv *priv)
		init_timer(&priv->power_data.ct_kill_exit_tm);
		priv->power_data.ct_kill_exit_tm.data = (unsigned long)priv;
		priv->power_data.ct_kill_exit_tm.function = iwl_tt_check_exit_ct_kill;
		switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
		case CSR_HW_REV_TYPE_6x00:
		case CSR_HW_REV_TYPE_6x50:
		IWL_DEBUG_POWER(priv, "Advanced Thermal Throttling\n");
		tt->restriction = kzalloc(sizeof(struct iwl_tt_restriction) *
		IWL_TI_STATE_MAX, GFP_KERNEL);
		tt->transaction = kzalloc(sizeof(struct iwl_tt_trans) *
		IWL_TI_STATE_MAX * (IWL_TI_STATE_MAX - 1),
		GFP_KERNEL);
		if (!tt->restriction \|\| !tt->transaction) {
		IWL_ERR(priv, "Fallback to Legacy Throttling\n");
		priv->power_data.adv_tt = false;
		kfree(tt->restriction);
		tt->restriction = NULL;
		kfree(tt->transaction);
		tt->transaction = NULL;
		} else {
		transaction = tt->transaction +
		(IWL_TI_0 * (IWL_TI_STATE_MAX - 1));
		memcpy(transaction, &tt_range_0[0], size);
		transaction = tt->transaction +
		(IWL_TI_1 * (IWL_TI_STATE_MAX - 1));
		memcpy(transaction, &tt_range_1[0], size);
		transaction = tt->transaction +
		(IWL_TI_2 * (IWL_TI_STATE_MAX - 1));
		memcpy(transaction, &tt_range_2[0], size);
		transaction = tt->transaction +
		(IWL_TI_CT_KILL * (IWL_TI_STATE_MAX - 1));
		memcpy(transaction, &tt_range_3[0], size);
		size = sizeof(struct iwl_tt_restriction) *
		IWL_TI_STATE_MAX;
		memcpy(tt->restriction,
		&restriction_range[0], size);
		priv->power_data.adv_tt = true;
		}
		break;
		default:
		IWL_DEBUG_POWER(priv, "Legacy Thermal Throttling\n");
		priv->power_data.adv_tt = false;
		break;
		}
		}
		EXPORT_SYMBOL(iwl_tt_initialize);

		/* cleanup thermal throttling management related memory and timer */
		void iwl_tt_exit(struct iwl_priv *priv)
		{
		struct iwl_tt_mgmt *tt = &priv->power_data.tt;

		/* stop ct_kill_exit_tm timer if activated */
		del_timer_sync(&priv->power_data.ct_kill_exit_tm);

		if (priv->power_data.adv_tt) {
		/* free advance thermal throttling memory */
		kfree(tt->restriction);
		tt->restriction = NULL;
		kfree(tt->transaction);
		tt->transaction = NULL;
		}
		}
		EXPORT_SYMBOL(iwl_tt_exit);

drivers/net/wireless/iwlwifi/iwl-power.h

+51 −0

Original line number	Diff line number	Diff line
		@@ -33,8 +33,18 @@

		struct iwl_priv;

		#define IWL_ABSOLUTE_ZERO 0
		#define IWL_ABSOLUTE_MAX 0xFFFFFFFF
		#define IWL_TT_INCREASE_MARGIN 5

		/* Tx/Rx restrictions */
		#define IWL_TX_MULTI 0x02
		#define IWL_TX_SINGLE 0x01
		#define IWL_TX_NONE 0x00
		#define IWL_RX_MULTI 0x02
		#define IWL_RX_SINGLE 0x01
		#define IWL_RX_NONE 0x00

		/* Thermal Throttling State Machine states */
		enum iwl_tt_state {
		IWL_TI_0, /* normal temperature, system power state */
		@@ -44,6 +54,35 @@ enum iwl_tt_state {
		IWL_TI_STATE_MAX
		};

		/**
		* struct iwl_tt_restriction - Thermal Throttling restriction table used
		* by advance thermal throttling management
		* based on the current thermal throttling state, determine
		* number of tx/rx streams; and the status of HT operation
		* @tx_stream: number of tx stream allowed
		* @is_ht: ht enable/disable
		* @rx_stream: number of rx stream allowed
		*/
		struct iwl_tt_restriction {
		u8 tx_stream;
		bool is_ht;
		u8 rx_stream;
		};

		/**
		* struct iwl_tt_trans - Thermal Throttling transaction table; used by
		* advance thermal throttling algorithm to determine next
		* thermal state to go based on the current temperature
		* @next_state: next thermal throttling mode
		* @tt_low: low temperature threshold to change state
		* @tt_high: high temperature threshold to change state
		*/
		struct iwl_tt_trans {
		enum iwl_tt_state next_state;
		u32 tt_low;
		u32 tt_high;
		};

		/**
		* struct iwl_tt_mgnt - Thermal Throttling Management structure
		* @state: current Thermal Throttling state
		@@ -55,6 +94,11 @@ enum iwl_tt_state {
		* @sys_power_mode: previous system power mode
		* before transition into TT state
		* @tt_previous_temperature: last measured temperature
		* @iwl_tt_restriction: ptr to restriction tbl, used by advance
		* thermal throttling to determine how many tx/rx streams
		* should be used in tt state; and can HT be enabled or not
		* @iwl_tt_trans: ptr to adv trans table, used by advance thermal throttling
		* state transaction
		*/
		struct iwl_tt_mgmt {
		enum iwl_tt_state state;
		@@ -63,6 +107,8 @@ struct iwl_tt_mgmt {
		#ifdef CONFIG_IWLWIFI_DEBUG
		s32 tt_previous_temp;
		#endif
		struct iwl_tt_restriction *restriction;
		struct iwl_tt_trans *transaction;
		};

		enum {
		@@ -92,6 +138,8 @@ struct iwl_power_mgr {
		u8 user_power_setting; /* set by user through sysfs */
		u8 power_disabled; /* set by mac80211's CONF_PS */
		struct iwl_tt_mgmt tt; /* Thermal Throttling Management */
		bool adv_tt; /* false: legacy mode */
		/* true: advance mode */
		bool ct_kill_toggle; /* use to toggle the CSR bit when
		* checking uCode temperature
		*/
		@@ -100,6 +148,9 @@ struct iwl_power_mgr {

		int iwl_power_update_mode(struct iwl_priv *priv, bool force);
		int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode);
		bool iwl_ht_enabled(struct iwl_priv *priv);
		u8 iwl_tx_ant_restriction(struct iwl_priv *priv);
		u8 iwl_rx_ant_restriction(struct iwl_priv *priv);
		void iwl_tt_enter_ct_kill(struct iwl_priv *priv);
		void iwl_tt_exit_ct_kill(struct iwl_priv *priv);
		void iwl_tt_handler(struct iwl_priv *priv);