iwl-power.c revision ac4f5457c7617999967e9740f8903b922714bab4
15da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas/****************************************************************************** 25da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * 31f44780827c6bbbcd1f12d5c6b6ce84f49a96bc0Reinette Chatre * Copyright(c) 2007 - 2010 Intel Corporation. All rights reserved. 45da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * 55da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * Portions of this file are derived from the ipw3945 project, as well 65da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * as portions of the ieee80211 subsystem header files. 75da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * 85da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * This program is free software; you can redistribute it and/or modify it 95da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * under the terms of version 2 of the GNU General Public License as 105da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * published by the Free Software Foundation. 115da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * 125da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * This program is distributed in the hope that it will be useful, but WITHOUT 135da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 145da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 155da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * more details. 165da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * 175da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * You should have received a copy of the GNU General Public License along with 185da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * this program; if not, write to the Free Software Foundation, Inc., 195da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA 205da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * 215da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * The full GNU General Public License is included in this distribution in the 225da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * file called LICENSE. 235da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * 245da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * Contact Information: 25759ef89fb096c4a6ef078d3cfd5682ac037bd789Winkler, Tomas * Intel Linux Wireless <ilw@linux.intel.com> 265da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 275da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas *****************************************************************************/ 285da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 295da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 305da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas#include <linux/kernel.h> 315da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas#include <linux/module.h> 325a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 335da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas#include <linux/init.h> 345da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 355da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas#include <net/mac80211.h> 365da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 375da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas#include "iwl-eeprom.h" 383e0d4cb12f6fd97193a455b49125398b2231c87cTomas Winkler#include "iwl-dev.h" 395da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas#include "iwl-core.h" 4039b73fb15e4704fd4d1e33688135810637f5f3fbWey-Yi Guy#include "iwl-io.h" 415a36ba0e412a0e12a8bf2648a075226c1dd7870dTomas Winkler#include "iwl-commands.h" 425da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas#include "iwl-debug.h" 435da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas#include "iwl-power.h" 445da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 455da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas/* 46e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg * Setting power level allows the card to go to sleep when not busy. 475da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas * 48e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg * We calculate a sleep command based on the required latency, which 49e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg * we get from mac80211. In order to handle thermal throttling, we can 50e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg * also use pre-defined power levels. 515da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas */ 525da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 53e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg/* 54e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg * For now, keep using power level 1 instead of automatically 55e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg * adjusting ... 56e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg */ 57e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Bergbool no_sleep_autoadjust = true; 58e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Bergmodule_param(no_sleep_autoadjust, bool, S_IRUGO); 59e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes BergMODULE_PARM_DESC(no_sleep_autoadjust, 60e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg "don't automatically adjust sleep level " 61e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg "according to maximum network latency"); 625da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 63e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg/* 64e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg * This defines the old power levels. They are still used by default 65e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg * (level 1) and for thermal throttle (levels 3 through 5) 66e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg */ 67e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 68e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Bergstruct iwl_power_vec_entry { 69e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg struct iwl_powertable_cmd cmd; 704ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy u8 no_dtim; /* number of skip dtim */ 71e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg}; 72e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 73e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg#define IWL_DTIM_RANGE_0_MAX 2 74e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg#define IWL_DTIM_RANGE_1_MAX 10 755da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 767af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Berg#define NOSLP cpu_to_le16(0), 0, 0 777af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Berg#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0 787af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Berg#define TU_TO_USEC 1024 797af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Berg#define SLP_TOUT(T) cpu_to_le32((T) * TU_TO_USEC) 807af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Berg#define SLP_VEC(X0, X1, X2, X3, X4) {cpu_to_le32(X0), \ 817af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Berg cpu_to_le32(X1), \ 827af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Berg cpu_to_le32(X2), \ 837af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Berg cpu_to_le32(X3), \ 847af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Berg cpu_to_le32(X4)} 855da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas/* default power management (not Tx power) table values */ 86e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg/* for DTIM period 0 through IWL_DTIM_RANGE_0_MAX */ 874ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy/* DTIM 0 - 2 */ 887af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Bergstatic const struct iwl_power_vec_entry range_0[IWL_POWER_NUM] = { 894ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy {{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 1, 2, 2, 0xFF)}, 0}, 905da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 2, 2, 0xFF)}, 0}, 915da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 2, 2, 2, 0xFF)}, 0}, 925da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 2, 4, 4, 0xFF)}, 1}, 935da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(2, 2, 4, 6, 0xFF)}, 2} 945da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas}; 955da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 965da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 97e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg/* for DTIM period IWL_DTIM_RANGE_0_MAX + 1 through IWL_DTIM_RANGE_1_MAX */ 984ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy/* DTIM 3 - 10 */ 997af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Bergstatic const struct iwl_power_vec_entry range_1[IWL_POWER_NUM] = { 1005da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0}, 1015da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 3, 4, 7)}, 0}, 1025da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 4, 6, 7, 9)}, 0}, 1035da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 4, 6, 9, 10)}, 1}, 1044ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy {{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(2, 4, 6, 10, 10)}, 2} 1055da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas}; 1065da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 107e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg/* for DTIM period > IWL_DTIM_RANGE_1_MAX */ 1084ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy/* DTIM 11 - */ 1097af2c460789a78d9c0d4dc7776fcb87acdc71052Johannes Bergstatic const struct iwl_power_vec_entry range_2[IWL_POWER_NUM] = { 1105da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 0xFF)}, 0}, 1115da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(2, 4, 6, 7, 0xFF)}, 0}, 1125da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0}, 1135da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0}, 1145da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas {{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 0xFF)}, 0} 1155da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas}; 1165da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 117e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Bergstatic void iwl_static_sleep_cmd(struct iwl_priv *priv, 118e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg struct iwl_powertable_cmd *cmd, 119e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg enum iwl_power_level lvl, int period) 120e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg{ 121e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg const struct iwl_power_vec_entry *table; 1224ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy int max_sleep[IWL_POWER_VEC_SIZE] = { 0 }; 1234ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy int i; 1244ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy u8 skip; 1254ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy u32 slp_itrvl; 126e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 127e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg table = range_2; 1284ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy if (period <= IWL_DTIM_RANGE_1_MAX) 129e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg table = range_1; 1304ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy if (period <= IWL_DTIM_RANGE_0_MAX) 131e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg table = range_0; 132e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 133e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg BUG_ON(lvl < 0 || lvl >= IWL_POWER_NUM); 134e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 135e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg *cmd = table[lvl].cmd; 136e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 137e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg if (period == 0) { 1384ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy skip = 0; 139e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg period = 1; 1404ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy for (i = 0; i < IWL_POWER_VEC_SIZE; i++) 1414ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy max_sleep[i] = 1; 1424ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy 143e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg } else { 1444ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy skip = table[lvl].no_dtim; 1454ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy for (i = 0; i < IWL_POWER_VEC_SIZE; i++) 1464ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy max_sleep[i] = le32_to_cpu(cmd->sleep_interval[i]); 1474ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy max_sleep[IWL_POWER_VEC_SIZE - 1] = skip + 1; 148e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg } 149e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 1504ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy slp_itrvl = le32_to_cpu(cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]); 1514ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy /* figure out the listen interval based on dtim period and skip */ 1524ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy if (slp_itrvl == 0xFF) 1534ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1] = 1544ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy cpu_to_le32(period * (skip + 1)); 1554ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy 1564ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy slp_itrvl = le32_to_cpu(cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]); 1574ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy if (slp_itrvl > period) 1584ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1] = 1594ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy cpu_to_le32((slp_itrvl / period) * period); 1604ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy 1614ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy if (skip) 162e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK; 1634ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy else 164e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK; 165e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 1664ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy slp_itrvl = le32_to_cpu(cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]); 167570af86e0ab7e7b42b2562ff3209c16ab1ebd5f8Wey-Yi Guy if (slp_itrvl > IWL_CONN_MAX_LISTEN_INTERVAL) 1684ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1] = 169570af86e0ab7e7b42b2562ff3209c16ab1ebd5f8Wey-Yi Guy cpu_to_le32(IWL_CONN_MAX_LISTEN_INTERVAL); 1704ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy 1714ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy /* enforce max sleep interval */ 1724ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy for (i = IWL_POWER_VEC_SIZE - 1; i >= 0 ; i--) { 1734ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy if (le32_to_cpu(cmd->sleep_interval[i]) > 1744ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy (max_sleep[i] * period)) 1754ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy cmd->sleep_interval[i] = 1764ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy cpu_to_le32(max_sleep[i] * period); 1774ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy if (i != (IWL_POWER_VEC_SIZE - 1)) { 1784ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy if (le32_to_cpu(cmd->sleep_interval[i]) > 1794ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy le32_to_cpu(cmd->sleep_interval[i+1])) 1804ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy cmd->sleep_interval[i] = 1814ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy cmd->sleep_interval[i+1]; 1824ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy } 1834ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy } 184e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 185e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg if (priv->power_data.pci_pm) 186e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg cmd->flags |= IWL_POWER_PCI_PM_MSK; 187e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg else 188e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg cmd->flags &= ~IWL_POWER_PCI_PM_MSK; 189e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 1904ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy IWL_DEBUG_POWER(priv, "numSkipDtim = %u, dtimPeriod = %d\n", 1914ad177b5c860dc0b1083eccc55957daf4a116b90Wey-Yi Guy skip, period); 192e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg IWL_DEBUG_POWER(priv, "Sleep command for index %d\n", lvl + 1); 193e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg} 194e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 195e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Bergstatic void iwl_power_sleep_cam_cmd(struct iwl_priv *priv, 196e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg struct iwl_powertable_cmd *cmd) 1975da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas{ 198e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg memset(cmd, 0, sizeof(*cmd)); 1995da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 200e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg if (priv->power_data.pci_pm) 201e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg cmd->flags |= IWL_POWER_PCI_PM_MSK; 2025da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 203e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg IWL_DEBUG_POWER(priv, "Sleep command for CAM\n"); 2045da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas} 2055da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 206e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Bergstatic void iwl_power_fill_sleep_cmd(struct iwl_priv *priv, 207e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg struct iwl_powertable_cmd *cmd, 208e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg int dynps_ms, int wakeup_period) 2095da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas{ 2104c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg /* 2114c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg * These are the original power level 3 sleep successions. The 2124c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg * device may behave better with such succession and was also 2134c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg * only tested with that. Just like the original sleep commands, 2144c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg * also adjust the succession here to the wakeup_period below. 2154c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg * The ranges are the same as for the sleep commands, 0-2, 3-9 2164c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg * and >10, which is selected based on the DTIM interval for 2174c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg * the sleep index but here we use the wakeup period since that 2184c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg * is what we need to do for the latency requirements. 2194c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg */ 2204c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg static const u8 slp_succ_r0[IWL_POWER_VEC_SIZE] = { 2, 2, 2, 2, 2 }; 2214c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg static const u8 slp_succ_r1[IWL_POWER_VEC_SIZE] = { 2, 4, 6, 7, 9 }; 2224c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg static const u8 slp_succ_r2[IWL_POWER_VEC_SIZE] = { 2, 7, 9, 9, 0xFF }; 2234c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg const u8 *slp_succ = slp_succ_r0; 2245cd19c5f15f4bd3354cc7f8f8b1125018a84a25cWinkler, Tomas int i; 2255da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 2264c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg if (wakeup_period > IWL_DTIM_RANGE_0_MAX) 2274c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg slp_succ = slp_succ_r1; 2284c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg if (wakeup_period > IWL_DTIM_RANGE_1_MAX) 2294c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg slp_succ = slp_succ_r2; 2304c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg 231e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg memset(cmd, 0, sizeof(*cmd)); 2325cd19c5f15f4bd3354cc7f8f8b1125018a84a25cWinkler, Tomas 233e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg cmd->flags = IWL_POWER_DRIVER_ALLOW_SLEEP_MSK | 234e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg IWL_POWER_FAST_PD; /* no use seeing frames for others */ 2355da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 236e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg if (priv->power_data.pci_pm) 237e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg cmd->flags |= IWL_POWER_PCI_PM_MSK; 2385da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 239e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg cmd->rx_data_timeout = cpu_to_le32(1000 * dynps_ms); 240e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg cmd->tx_data_timeout = cpu_to_le32(1000 * dynps_ms); 2415da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 2425cd19c5f15f4bd3354cc7f8f8b1125018a84a25cWinkler, Tomas for (i = 0; i < IWL_POWER_VEC_SIZE; i++) 2434c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg cmd->sleep_interval[i] = 2444c561a02291326c50f9b1f647eae891af9d1f3b2Johannes Berg cpu_to_le32(min_t(int, slp_succ[i], wakeup_period)); 245e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 246e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg IWL_DEBUG_POWER(priv, "Automatic sleep command\n"); 247e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg} 2485da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 249e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Bergstatic int iwl_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd) 250e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg{ 251e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg IWL_DEBUG_POWER(priv, "Sending power/sleep command\n"); 252e1623446bb1de1834ff1c57b3e8ed341d5d4a927Tomas Winkler IWL_DEBUG_POWER(priv, "Flags value = 0x%08X\n", cmd->flags); 253e1623446bb1de1834ff1c57b3e8ed341d5d4a927Tomas Winkler IWL_DEBUG_POWER(priv, "Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout)); 254e1623446bb1de1834ff1c57b3e8ed341d5d4a927Tomas Winkler IWL_DEBUG_POWER(priv, "Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout)); 255e1623446bb1de1834ff1c57b3e8ed341d5d4a927Tomas Winkler IWL_DEBUG_POWER(priv, "Sleep interval vector = { %d , %d , %d , %d , %d }\n", 2565da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas le32_to_cpu(cmd->sleep_interval[0]), 2575da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas le32_to_cpu(cmd->sleep_interval[1]), 2585da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas le32_to_cpu(cmd->sleep_interval[2]), 2595da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas le32_to_cpu(cmd->sleep_interval[3]), 2605da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas le32_to_cpu(cmd->sleep_interval[4])); 2615da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 262e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg return iwl_send_cmd_pdu(priv, POWER_TABLE_CMD, 263e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg sizeof(struct iwl_powertable_cmd), cmd); 2645da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas} 2655da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 266ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszkastatic void iwl_power_build_cmd(struct iwl_priv *priv, 267ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka struct iwl_powertable_cmd *cmd) 2685da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas{ 2694d6959219bb71aa34383fc1a1a520820aee6292bJohannes Berg bool enabled = priv->hw->conf.flags & IEEE80211_CONF_PS; 270e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg int dtimper; 2715da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 2723a065ab3b57bedefa1d59c88f731da6513ac482aJohannes Berg dtimper = priv->hw->conf.ps_dtim_period ?: 1; 273e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 2747cb1b0887fcc61918e3d64827fbef968bb67a57aWey-Yi Guy if (priv->cfg->base_params->broken_powersave) 275ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka iwl_power_sleep_cam_cmd(priv, cmd); 2767cb1b0887fcc61918e3d64827fbef968bb67a57aWey-Yi Guy else if (priv->cfg->base_params->supports_idle && 27778f5fb7fc6c2c668a12fd6892c18baa20e4ffd27Johannes Berg priv->hw->conf.flags & IEEE80211_CONF_IDLE) 278ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, 20); 2790975cc8fbf5b61b188734f2edd9e588c7edff2a1Wey-Yi Guy else if (priv->cfg->ops->lib->tt_ops.lower_power_detection && 2806ddbf8cd39dc1faee7ba60337b11eb02edfcbee6Wey-Yi Guy priv->cfg->ops->lib->tt_ops.tt_power_mode && 2816ddbf8cd39dc1faee7ba60337b11eb02edfcbee6Wey-Yi Guy priv->cfg->ops->lib->tt_ops.lower_power_detection(priv)) { 2826ddbf8cd39dc1faee7ba60337b11eb02edfcbee6Wey-Yi Guy /* in thermal throttling low power state */ 283ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka iwl_static_sleep_cmd(priv, cmd, 2846ddbf8cd39dc1faee7ba60337b11eb02edfcbee6Wey-Yi Guy priv->cfg->ops->lib->tt_ops.tt_power_mode(priv), dtimper); 2850975cc8fbf5b61b188734f2edd9e588c7edff2a1Wey-Yi Guy } else if (!enabled) 286ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka iwl_power_sleep_cam_cmd(priv, cmd); 287e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg else if (priv->power_data.debug_sleep_level_override >= 0) 288ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka iwl_static_sleep_cmd(priv, cmd, 289e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg priv->power_data.debug_sleep_level_override, 290e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg dtimper); 291e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg else if (no_sleep_autoadjust) 292ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_1, dtimper); 293e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg else 294ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka iwl_power_fill_sleep_cmd(priv, cmd, 295e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg priv->hw->conf.dynamic_ps_timeout, 296e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg priv->hw->conf.max_sleep_period); 297ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka} 298ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 299ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszkaint iwl_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd, 300ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka bool force) 301ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka{ 302ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka int ret; 303ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka bool update_chains; 304ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 305ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka lockdep_assert_held(&priv->mutex); 306ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 307ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka /* Don't update the RX chain when chain noise calibration is running */ 308ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka update_chains = priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE || 309ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka priv->chain_noise_data.state == IWL_CHAIN_NOISE_ALIVE; 310ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 311ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka if (!memcmp(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd)) && !force) 312ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka return 0; 313ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 314ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka if (!iwl_is_ready_rf(priv)) 315ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka return -EIO; 316ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 317ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka /* scan complete use sleep_power_next, need to be updated */ 318ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka memcpy(&priv->power_data.sleep_cmd_next, cmd, sizeof(*cmd)); 319ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka if (test_bit(STATUS_SCANNING, &priv->status) && !force) { 320ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka IWL_DEBUG_INFO(priv, "Defer power set mode while scanning\n"); 321ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka return 0; 322ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka } 323ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 324ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka if (cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK) 325ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka set_bit(STATUS_POWER_PMI, &priv->status); 3265da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 327ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka ret = iwl_set_power(priv, cmd); 328ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka if (!ret) { 329ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka if (!(cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK)) 330ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka clear_bit(STATUS_POWER_PMI, &priv->status); 331ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 332ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka if (priv->cfg->ops->lib->update_chain_flags && update_chains) 333ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka priv->cfg->ops->lib->update_chain_flags(priv); 334ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka else if (priv->cfg->ops->lib->update_chain_flags) 335ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka IWL_DEBUG_POWER(priv, 3363a780d25428a0a391a8ba6c888cf4e89ac3fdbb1Wey-Yi Guy "Cannot update the power, chain noise " 337a71c8f62d46e4496011182658dc058303960c068Winkler, Tomas "calibration running: %d\n", 338a71c8f62d46e4496011182658dc058303960c068Winkler, Tomas priv->chain_noise_data.state); 339ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 340ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka memcpy(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd)); 341ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka } else 342ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka IWL_ERR(priv, "set power fail, ret = %d", ret); 3435da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 3445da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas return ret; 3455da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas} 346ac4f5457c7617999967e9740f8903b922714bab4Stanislaw GruszkaEXPORT_SYMBOL(iwl_power_set_mode); 347ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 348ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszkaint iwl_power_update_mode(struct iwl_priv *priv, bool force) 349ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka{ 350ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka struct iwl_powertable_cmd cmd; 351ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka 352ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka iwl_power_build_cmd(priv, &cmd); 353ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka return iwl_power_set_mode(priv, &cmd, force); 354ac4f5457c7617999967e9740f8903b922714bab4Stanislaw Gruszka} 3555da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed AbbasEXPORT_SYMBOL(iwl_power_update_mode); 3565da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas 357a96a27f97f2bbfc1fca54bc3c0b0d41484152740Tomas Winkler/* initialize to default */ 3585da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbasvoid iwl_power_initialize(struct iwl_priv *priv) 3595da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas{ 360e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg u16 lctl = iwl_pcie_link_ctl(priv); 361e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 362e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg priv->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN); 363e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 364e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg priv->power_data.debug_sleep_level_override = -1; 365e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg 366e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg memset(&priv->power_data.sleep_cmd, 0, 367e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0aJohannes Berg sizeof(priv->power_data.sleep_cmd)); 3685da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed Abbas} 3695da4b55f78fb2ed40926b775d4f7c791594ecbd7Mohamed AbbasEXPORT_SYMBOL(iwl_power_initialize); 370