tt.h

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/******************************************************************************
 *
 * Copyright(c) 2007 - 2012 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 <[email protected]>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *****************************************************************************/
#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 {
    enum iwl_antenna_ok tx_stream;
    enum iwl_antenna_ok rx_stream;
    bool is_ht;
};

struct iwl_tt_trans {
    enum iwl_tt_state next_state;
    u32 tt_low;
    u32 tt_high;
};

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__ */