SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/net/wireless/iwlwifi/iwl-power.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
   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_power_setting_h__
  29 #define __iwl_power_setting_h__
  30
  31 #include <net/mac80211.h>
  32 #include "iwl-commands.h"
  33
  34 struct iwl_priv;
  35
  36 enum {
  37         IWL_POWER_MODE_CAM, /* Continuously Aware Mode, always on */
  38         IWL_POWER_INDEX_1,
  39         IWL_POWER_INDEX_2,
  40         IWL_POWER_INDEX_3,
  41         IWL_POWER_INDEX_4,
  42         IWL_POWER_INDEX_5,
  43         IWL_POWER_AUTO,
  44         IWL_POWER_MAX = IWL_POWER_AUTO,
  45         IWL39_POWER_AC = IWL_POWER_AUTO, /* 0x06 */
  46         IWL_POWER_AC,
  47         IWL39_POWER_BATTERY = IWL_POWER_AC, /* 0x07 */
  48         IWL39_POWER_LIMIT = IWL_POWER_AC,
  49         IWL_POWER_BATTERY,
  50 };
  51
  52 enum {
  53         IWL_POWER_SYS_AUTO,
  54         IWL_POWER_SYS_AC,
  55         IWL_POWER_SYS_BATTERY,
  56 };
  57
  58 #define IWL_POWER_LIMIT         0x08
  59 #define IWL_POWER_MASK          0x0F
  60 #define IWL_POWER_ENABLED       0x10
  61
  62 #define IWL_POWER_RANGE_0  (0)
  63 #define IWL_POWER_RANGE_1  (1)
  64
  65 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
  66
  67 /* Power management (not Tx power) structures */
  68
  69 #define NOSLP __constant_cpu_to_le16(0), 0, 0
  70 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
  71 #define SLP_TOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
  72 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
  73                                      __constant_cpu_to_le32(X1), \
  74                                      __constant_cpu_to_le32(X2), \
  75                                      __constant_cpu_to_le32(X3), \
  76                                      __constant_cpu_to_le32(X4)}
  77 struct iwl_power_vec_entry {
  78         struct iwl_powertable_cmd cmd;
  79         u8 no_dtim;
  80 };
  81
  82 struct iwl_power_mgr {
  83         spinlock_t lock;
  84         struct iwl_power_vec_entry pwr_range_0[IWL_POWER_MAX];
  85         struct iwl_power_vec_entry pwr_range_1[IWL_POWER_MAX];
  86         struct iwl_power_vec_entry pwr_range_2[IWL_POWER_MAX];
  87         u32 dtim_period;
  88         /* final power level that used to calculate final power command */
  89         u8 power_mode;
  90         u8 user_power_setting; /* set by user through mac80211 or sysfs */
  91         u8 system_power_setting; /* set by kernel system tools */
  92         u8 critical_power_setting; /* set if driver over heated */
  93         u8 is_battery_active; /* DC/AC power */
  94         u8 power_disabled; /* flag to disable using power saving level */
  95 };
  96
  97 void iwl_setup_power_deferred_work(struct iwl_priv *priv);
  98 void iwl_power_cancel_timeout(struct iwl_priv *priv);
  99 int iwl_power_update_mode(struct iwl_priv *priv, bool force);
 100 int iwl_power_disable_management(struct iwl_priv *priv, u32 ms);
 101 int iwl_power_enable_management(struct iwl_priv *priv);
 102 int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode);
 103 int iwl_power_set_system_mode(struct iwl_priv *priv, u16 mode);
 104 void iwl_power_initialize(struct iwl_priv *priv);
 105 int iwl_power_temperature_change(struct iwl_priv *priv);
 106
 107 #endif  /* __iwl_power_setting_h__ */