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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /* SPDX-License-Identifier: GPL-2.0-only */ /****************************************************************************** * * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. *****************************************************************************/ #ifndef __iwl_tt_setting_h__ #define __iwl_tt_setting_h__ #include "commands.h" #define IWL_ABSOLUTE_ZERO 0 #define IWL_ABSOLUTE_MAX 0xFFFFFFFF #define IWL_TT_INCREASE_MARGIN 5 #define IWL_TT_CT_KILL_MARGIN 3 enum iwl_antenna_ok { IWL_ANT_OK_NONE, IWL_ANT_OK_SINGLE, IWL_ANT_OK_MULTI, }; /* Thermal Throttling State Machine states */ enum iwl_tt_state { IWL_TI_0, /* normal temperature, system power state */ IWL_TI_1, /* high temperature detect, low power state */ IWL_TI_2, /* higher temperature detected, lower power state */ IWL_TI_CT_KILL, /* critical temperature detected, lowest power state */ IWL_TI_STATE_MAX }; /** * struct iwl_tt_restriction - Thermal Throttling restriction table * @tx_stream: number of tx stream allowed * @is_ht: ht enable/disable * @rx_stream: number of rx stream allowed * * This table is used by advance thermal throttling management * based on the current thermal throttling state, and determines * the number of tx/rx streams and the status of HT operation. */ struct iwl_tt_restriction { enum iwl_antenna_ok tx_stream; enum iwl_antenna_ok rx_stream; bool is_ht; }; /** * struct iwl_tt_trans - Thermal Throttling transaction table * @next_state: next thermal throttling mode * @tt_low: low temperature threshold to change state * @tt_high: high temperature threshold to change state * * This is used by the advanced thermal throttling algorithm * to determine the next thermal state to go based on the * current temperature. */ struct iwl_tt_trans { enum iwl_tt_state next_state; u32 tt_low; u32 tt_high; }; /** * struct iwl_tt_mgnt - Thermal Throttling Management structure * @advanced_tt: advanced thermal throttle required * @state: current Thermal Throttling state * @tt_power_mode: Thermal Throttling power mode index * being used to set power level when * when thermal throttling state != IWL_TI_0 * the tt_power_mode should set to different * power mode based on the current 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 * @ct_kill_toggle: used to toggle the CSR bit when checking uCode temperature * @ct_kill_exit_tm: timer to exit thermal kill */ struct iwl_tt_mgmt { enum iwl_tt_state state; bool advanced_tt; u8 tt_power_mode; bool ct_kill_toggle; #ifdef CONFIG_IWLWIFI_DEBUG s32 tt_previous_temp; #endif struct iwl_tt_restriction *restriction; struct iwl_tt_trans *transaction; struct timer_list ct_kill_exit_tm; struct timer_list ct_kill_waiting_tm; }; u8 iwl_tt_current_power_mode(struct iwl_priv *priv); bool iwl_tt_is_low_power_state(struct iwl_priv *priv); bool iwl_ht_enabled(struct iwl_priv *priv); enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv); enum iwl_antenna_ok 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); void iwl_tt_initialize(struct iwl_priv *priv); void iwl_tt_exit(struct iwl_priv *priv); #endif /* __iwl_tt_setting_h__ */ |