Wey-Yi Guy | 0975cc8 | 2010-07-31 08:34:07 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Emmanuel Grumbach | 51368bf | 2013-12-30 13:15:54 +0200 | [diff] [blame] | 3 | * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. |
Wey-Yi Guy | 0975cc8 | 2010-07-31 08:34:07 -0700 | [diff] [blame] | 4 | * |
| 5 | * Portions of this file are derived from the ipw3945 project, as well |
| 6 | * as portions of the ieee80211 subsystem header files. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of version 2 of the GNU General Public License as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 15 | * more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along with |
| 18 | * this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 20 | * |
| 21 | * The full GNU General Public License is included in this distribution in the |
| 22 | * file called LICENSE. |
| 23 | * |
| 24 | * Contact Information: |
| 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | *****************************************************************************/ |
| 28 | #ifndef __iwl_tt_setting_h__ |
| 29 | #define __iwl_tt_setting_h__ |
| 30 | |
Johannes Berg | 1023fdc | 2012-05-15 12:16:34 +0200 | [diff] [blame] | 31 | #include "commands.h" |
Wey-Yi Guy | 0975cc8 | 2010-07-31 08:34:07 -0700 | [diff] [blame] | 32 | |
| 33 | #define IWL_ABSOLUTE_ZERO 0 |
| 34 | #define IWL_ABSOLUTE_MAX 0xFFFFFFFF |
| 35 | #define IWL_TT_INCREASE_MARGIN 5 |
| 36 | #define IWL_TT_CT_KILL_MARGIN 3 |
| 37 | |
| 38 | enum iwl_antenna_ok { |
| 39 | IWL_ANT_OK_NONE, |
| 40 | IWL_ANT_OK_SINGLE, |
| 41 | IWL_ANT_OK_MULTI, |
| 42 | }; |
| 43 | |
| 44 | /* Thermal Throttling State Machine states */ |
| 45 | enum iwl_tt_state { |
| 46 | IWL_TI_0, /* normal temperature, system power state */ |
| 47 | IWL_TI_1, /* high temperature detect, low power state */ |
| 48 | IWL_TI_2, /* higher temperature detected, lower power state */ |
| 49 | IWL_TI_CT_KILL, /* critical temperature detected, lowest power state */ |
| 50 | IWL_TI_STATE_MAX |
| 51 | }; |
| 52 | |
| 53 | /** |
| 54 | * struct iwl_tt_restriction - Thermal Throttling restriction table |
| 55 | * @tx_stream: number of tx stream allowed |
| 56 | * @is_ht: ht enable/disable |
| 57 | * @rx_stream: number of rx stream allowed |
| 58 | * |
| 59 | * This table is used by advance thermal throttling management |
| 60 | * based on the current thermal throttling state, and determines |
| 61 | * the number of tx/rx streams and the status of HT operation. |
| 62 | */ |
| 63 | struct iwl_tt_restriction { |
| 64 | enum iwl_antenna_ok tx_stream; |
| 65 | enum iwl_antenna_ok rx_stream; |
| 66 | bool is_ht; |
| 67 | }; |
| 68 | |
| 69 | /** |
| 70 | * struct iwl_tt_trans - Thermal Throttling transaction table |
| 71 | * @next_state: next thermal throttling mode |
| 72 | * @tt_low: low temperature threshold to change state |
| 73 | * @tt_high: high temperature threshold to change state |
| 74 | * |
| 75 | * This is used by the advanced thermal throttling algorithm |
| 76 | * to determine the next thermal state to go based on the |
| 77 | * current temperature. |
| 78 | */ |
| 79 | struct iwl_tt_trans { |
| 80 | enum iwl_tt_state next_state; |
| 81 | u32 tt_low; |
| 82 | u32 tt_high; |
| 83 | }; |
| 84 | |
| 85 | /** |
| 86 | * struct iwl_tt_mgnt - Thermal Throttling Management structure |
| 87 | * @advanced_tt: advanced thermal throttle required |
| 88 | * @state: current Thermal Throttling state |
| 89 | * @tt_power_mode: Thermal Throttling power mode index |
| 90 | * being used to set power level when |
| 91 | * when thermal throttling state != IWL_TI_0 |
| 92 | * the tt_power_mode should set to different |
| 93 | * power mode based on the current tt state |
| 94 | * @tt_previous_temperature: last measured temperature |
| 95 | * @iwl_tt_restriction: ptr to restriction tbl, used by advance |
| 96 | * thermal throttling to determine how many tx/rx streams |
| 97 | * should be used in tt state; and can HT be enabled or not |
| 98 | * @iwl_tt_trans: ptr to adv trans table, used by advance thermal throttling |
| 99 | * state transaction |
| 100 | * @ct_kill_toggle: used to toggle the CSR bit when checking uCode temperature |
| 101 | * @ct_kill_exit_tm: timer to exit thermal kill |
| 102 | */ |
| 103 | struct iwl_tt_mgmt { |
| 104 | enum iwl_tt_state state; |
| 105 | bool advanced_tt; |
| 106 | u8 tt_power_mode; |
| 107 | bool ct_kill_toggle; |
| 108 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 109 | s32 tt_previous_temp; |
| 110 | #endif |
| 111 | struct iwl_tt_restriction *restriction; |
| 112 | struct iwl_tt_trans *transaction; |
| 113 | struct timer_list ct_kill_exit_tm; |
| 114 | struct timer_list ct_kill_waiting_tm; |
| 115 | }; |
| 116 | |
| 117 | u8 iwl_tt_current_power_mode(struct iwl_priv *priv); |
| 118 | bool iwl_tt_is_low_power_state(struct iwl_priv *priv); |
| 119 | bool iwl_ht_enabled(struct iwl_priv *priv); |
Wey-Yi Guy | 0975cc8 | 2010-07-31 08:34:07 -0700 | [diff] [blame] | 120 | enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv); |
| 121 | enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv); |
| 122 | void iwl_tt_enter_ct_kill(struct iwl_priv *priv); |
| 123 | void iwl_tt_exit_ct_kill(struct iwl_priv *priv); |
| 124 | void iwl_tt_handler(struct iwl_priv *priv); |
| 125 | void iwl_tt_initialize(struct iwl_priv *priv); |
| 126 | void iwl_tt_exit(struct iwl_priv *priv); |
| 127 | |
| 128 | #endif /* __iwl_tt_setting_h__ */ |