drivers/net/wireless/iwlwifi/iwl-power.h

/******************************************************************************
 *
 * 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;

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_AUTO,
	IWL_POWER_MAX = IWL_POWER_AUTO,
	IWL39_POWER_AC = IWL_POWER_AUTO, /* 0x06 */
	IWL_POWER_AC,
	IWL39_POWER_BATTERY = IWL_POWER_AC, /* 0x07 */
	IWL39_POWER_LIMIT = IWL_POWER_AC,
	IWL_POWER_BATTERY,
};

enum {
	IWL_POWER_SYS_AUTO,
	IWL_POWER_SYS_AC,
	IWL_POWER_SYS_BATTERY,
};

#define IWL_POWER_LIMIT		0x08
#define IWL_POWER_MASK		0x0F
#define IWL_POWER_ENABLED	0x10

#define IWL_POWER_RANGE_0  (0)
#define IWL_POWER_RANGE_1  (1)

#define IWL_POWER_LEVEL(x)	((x) & IWL_POWER_MASK)

/* Power management (not Tx power) structures */

#define NOSLP __constant_cpu_to_le16(0), 0, 0
#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
#define SLP_TOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
#define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
				     __constant_cpu_to_le32(X1), \
				     __constant_cpu_to_le32(X2), \
				     __constant_cpu_to_le32(X3), \
				     __constant_cpu_to_le32(X4)}
struct iwl_power_vec_entry {
	struct iwl_powertable_cmd cmd;
	u8 no_dtim;
};

struct iwl_power_mgr {
	spinlock_t lock;
	struct iwl_power_vec_entry pwr_range_0[IWL_POWER_MAX];
	struct iwl_power_vec_entry pwr_range_1[IWL_POWER_MAX];
	struct iwl_power_vec_entry pwr_range_2[IWL_POWER_MAX];
	u32 dtim_period;
	/* final power level that used to calculate final power command */
	u8 power_mode;
	u8 user_power_setting; /* set by user through mac80211 or sysfs */
	u8 system_power_setting; /* set by kernel system tools */
	u8 critical_power_setting; /* set if driver over heated */
	u8 is_battery_active; /* DC/AC power */
	u8 power_disabled; /* flag to disable using power saving level */
};

void iwl_setup_power_deferred_work(struct iwl_priv *priv);
void iwl_power_cancel_timeout(struct iwl_priv *priv);
int iwl_power_update_mode(struct iwl_priv *priv, bool force);
int iwl_power_disable_management(struct iwl_priv *priv, u32 ms);
int iwl_power_enable_management(struct iwl_priv *priv);
int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode);
int iwl_power_set_system_mode(struct iwl_priv *priv, u16 mode);
void iwl_power_initialize(struct iwl_priv *priv);
int iwl_power_temperature_change(struct iwl_priv *priv);

#endif  /* __iwl_power_setting_h__ */