diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-tt.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-tt.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tt.h b/drivers/net/wireless/iwlwifi/iwl-agn-tt.h new file mode 100644 index 00000000000..d55060427ca --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tt.h @@ -0,0 +1,129 @@ +/****************************************************************************** + * + * Copyright(c) 2007 - 2010 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_tt_setting_h__ +#define __iwl_tt_setting_h__ + +#include "iwl-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 - Thermal Throttling restriction table + * @tx_stream: number of tx stream allowed + * @is_ht: ht enable/disable + * @rx_stream: number of rx stream allowed + * + * This table is used by advance thermal throttling management + * based on the current thermal throttling state, and determines + * the number of tx/rx streams and the status of HT operation. + */ +struct iwl_tt_restriction { + enum iwl_antenna_ok tx_stream; + enum iwl_antenna_ok rx_stream; + bool is_ht; +}; + +/** + * struct iwl_tt_trans - Thermal Throttling transaction table + * @next_state: next thermal throttling mode + * @tt_low: low temperature threshold to change state + * @tt_high: high temperature threshold to change state + * + * This is used by the advanced thermal throttling algorithm + * to determine the next thermal state to go based on the + * current temperature. + */ +struct iwl_tt_trans { + enum iwl_tt_state next_state; + u32 tt_low; + u32 tt_high; +}; + +/** + * struct iwl_tt_mgnt - Thermal Throttling Management structure + * @advanced_tt: advanced thermal throttle required + * @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 + * @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 + * @ct_kill_toggle: used to toggle the CSR bit when checking uCode temperature + * @ct_kill_exit_tm: timer to exit thermal kill + */ +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); +bool iwl_check_for_ct_kill(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__ */ |