1
/******************************************************************************
3
* Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
5
* Portions of this file are derived from the ipw3945 project, as well
6
* as portions of the ieee80211 subsystem header files.
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.
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
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
21
* The full GNU General Public License is included in this distribution in the
22
* file called LICENSE.
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_power_setting_h__
29
#define __iwl_power_setting_h__
31
#include "iwl-commands.h"
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
44
/* Thermal Throttling State Machine states */
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 */
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
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.
63
struct iwl_tt_restriction {
64
enum iwl_antenna_ok tx_stream;
65
enum iwl_antenna_ok rx_stream;
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
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.
80
enum iwl_tt_state next_state;
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
100
* @ct_kill_toggle: used to toggle the CSR bit when checking uCode temperature
101
* @ct_kill_exit_tm: timer to exit thermal kill
104
enum iwl_tt_state state;
108
#ifdef CONFIG_IWLWIFI_DEBUG
109
s32 tt_previous_temp;
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;
117
enum iwl_power_level {
126
struct iwl_power_mgr {
127
struct iwl_powertable_cmd sleep_cmd;
128
int debug_sleep_level_override;
132
int iwl_power_update_mode(struct iwl_priv *priv, bool force);
133
bool iwl_ht_enabled(struct iwl_priv *priv);
134
bool iwl_within_ct_kill_margin(struct iwl_priv *priv);
135
enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv);
136
enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv);
137
void iwl_tt_enter_ct_kill(struct iwl_priv *priv);
138
void iwl_tt_exit_ct_kill(struct iwl_priv *priv);
139
void iwl_tt_handler(struct iwl_priv *priv);
140
void iwl_tt_initialize(struct iwl_priv *priv);
141
void iwl_tt_exit(struct iwl_priv *priv);
142
void iwl_power_initialize(struct iwl_priv *priv);
144
extern bool no_sleep_autoadjust;
146
#endif /* __iwl_power_setting_h__ */