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/******************************************************************************
*
* Copyright(c) 2007 - 2009 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.
*
* 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.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#ifndef __iwl_power_setting_h__
#define __iwl_power_setting_h__
#include <net/mac80211.h>
#include "iwl-commands.h"
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 */
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 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
* @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
* @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;
u8 tt_power_mode;
u8 sys_power_mode;
#ifdef CONFIG_IWLWIFI_DEBUG
s32 tt_previous_temp;
#endif
struct iwl_tt_restriction *restriction;
struct iwl_tt_trans *transaction;
};
enum {
IWL_POWER_MODE_CAM, /* Continuously Aware Mode, always on */
IWL_POWER_INDEX_1,
IWL_POWER_INDEX_2,
IWL_POWER_INDEX_3,
IWL_POWER_INDEX_4,
IWL_POWER_INDEX_5,
IWL_POWER_NUM
};
/* Power management (not Tx power) structures */
struct iwl_power_vec_entry {
struct iwl_powertable_cmd cmd;
u8 no_dtim;
};
struct iwl_power_mgr {
struct iwl_power_vec_entry pwr_range_0[IWL_POWER_NUM];
struct iwl_power_vec_entry pwr_range_1[IWL_POWER_NUM];
struct iwl_power_vec_entry pwr_range_2[IWL_POWER_NUM];
u32 dtim_period;
/* final power level that used to calculate final power command */
u8 power_mode;
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
*/
struct timer_list ct_kill_exit_tm;
};
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);
void iwl_tt_initialize(struct iwl_priv *priv);
void iwl_tt_exit(struct iwl_priv *priv);
void iwl_power_initialize(struct iwl_priv *priv);
#endif /* __iwl_power_setting_h__ */
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