4273a380f2
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details the full gnu general public license is included in this distribution in the file called license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 29 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000435.438503728@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/******************************************************************************
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*
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* Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
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*
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* Portions of this file are derived from the ipw3945 project, as well
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* as portions of the ieee80211 subsystem header files.
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*
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* Contact Information:
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* Intel Linux Wireless <linuxwifi@intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*****************************************************************************/
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#ifndef __iwl_tt_setting_h__
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#define __iwl_tt_setting_h__
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#include "commands.h"
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#define IWL_ABSOLUTE_ZERO 0
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#define IWL_ABSOLUTE_MAX 0xFFFFFFFF
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#define IWL_TT_INCREASE_MARGIN 5
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#define IWL_TT_CT_KILL_MARGIN 3
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enum iwl_antenna_ok {
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IWL_ANT_OK_NONE,
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IWL_ANT_OK_SINGLE,
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IWL_ANT_OK_MULTI,
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};
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/* Thermal Throttling State Machine states */
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enum iwl_tt_state {
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IWL_TI_0, /* normal temperature, system power state */
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IWL_TI_1, /* high temperature detect, low power state */
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IWL_TI_2, /* higher temperature detected, lower power state */
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IWL_TI_CT_KILL, /* critical temperature detected, lowest power state */
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IWL_TI_STATE_MAX
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};
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/**
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* struct iwl_tt_restriction - Thermal Throttling restriction table
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* @tx_stream: number of tx stream allowed
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* @is_ht: ht enable/disable
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* @rx_stream: number of rx stream allowed
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*
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* This table is used by advance thermal throttling management
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* based on the current thermal throttling state, and determines
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* the number of tx/rx streams and the status of HT operation.
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*/
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struct iwl_tt_restriction {
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enum iwl_antenna_ok tx_stream;
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enum iwl_antenna_ok rx_stream;
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bool is_ht;
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};
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/**
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* struct iwl_tt_trans - Thermal Throttling transaction table
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* @next_state: next thermal throttling mode
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* @tt_low: low temperature threshold to change state
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* @tt_high: high temperature threshold to change state
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*
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* This is used by the advanced thermal throttling algorithm
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* to determine the next thermal state to go based on the
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* current temperature.
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*/
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struct iwl_tt_trans {
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enum iwl_tt_state next_state;
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u32 tt_low;
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u32 tt_high;
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};
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/**
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* struct iwl_tt_mgnt - Thermal Throttling Management structure
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* @advanced_tt: advanced thermal throttle required
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* @state: current Thermal Throttling state
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* @tt_power_mode: Thermal Throttling power mode index
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* being used to set power level when
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* when thermal throttling state != IWL_TI_0
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* the tt_power_mode should set to different
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* power mode based on the current tt state
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* @tt_previous_temperature: last measured temperature
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* @iwl_tt_restriction: ptr to restriction tbl, used by advance
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* thermal throttling to determine how many tx/rx streams
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* should be used in tt state; and can HT be enabled or not
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* @iwl_tt_trans: ptr to adv trans table, used by advance thermal throttling
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* state transaction
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* @ct_kill_toggle: used to toggle the CSR bit when checking uCode temperature
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* @ct_kill_exit_tm: timer to exit thermal kill
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*/
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struct iwl_tt_mgmt {
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enum iwl_tt_state state;
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bool advanced_tt;
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u8 tt_power_mode;
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bool ct_kill_toggle;
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#ifdef CONFIG_IWLWIFI_DEBUG
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s32 tt_previous_temp;
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#endif
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struct iwl_tt_restriction *restriction;
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struct iwl_tt_trans *transaction;
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struct timer_list ct_kill_exit_tm;
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struct timer_list ct_kill_waiting_tm;
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};
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u8 iwl_tt_current_power_mode(struct iwl_priv *priv);
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bool iwl_tt_is_low_power_state(struct iwl_priv *priv);
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bool iwl_ht_enabled(struct iwl_priv *priv);
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enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv);
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enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv);
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void iwl_tt_enter_ct_kill(struct iwl_priv *priv);
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void iwl_tt_exit_ct_kill(struct iwl_priv *priv);
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void iwl_tt_handler(struct iwl_priv *priv);
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void iwl_tt_initialize(struct iwl_priv *priv);
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void iwl_tt_exit(struct iwl_priv *priv);
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#endif /* __iwl_tt_setting_h__ */
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