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iwlwifi: Add power level support

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Add power level support

Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Mohamed Abbas
2008-04-21 15:41:51 -07:00
committed by John W. Linville
parent 7eafd25d95
commit 5da4b55f78
9 changed files with 543 additions and 226 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/iwlwifi/Makefile
View File

@@ -1,5 +1,5 @@
obj-$(CONFIG_IWLCORE) += iwlcore.o obj-$(CONFIG_IWLCORE) += iwlcore.o
iwlcore-objs := iwl-core.o iwl-eeprom.o iwl-hcmd.o iwlcore-objs := iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
iwlcore-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o iwlcore-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
iwlcore-$(CONFIG_IWLWIFI_LEDS) += iwl-led.o iwlcore-$(CONFIG_IWLWIFI_LEDS) += iwl-led.o
iwlcore-$(CONFIG_IWLWIFI_RFKILL) += iwl-rfkill.o iwlcore-$(CONFIG_IWLWIFI_RFKILL) += iwl-rfkill.o

1
drivers/net/wireless/iwlwifi/iwl-4965-commands.h
View File

@@ -1853,6 +1853,7 @@ struct iwl4965_spectrum_notification {
#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le16(1 << 0) #define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le16(1 << 0)
#define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le16(1 << 2) #define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le16(1 << 2)
#define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le16(1 << 3) #define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le16(1 << 3)
#define IWL_POWER_FAST_PD __constant_cpu_to_le16(1 << 4)
struct iwl4965_powertable_cmd { struct iwl4965_powertable_cmd {
__le16 flags; __le16 flags;

15
drivers/net/wireless/iwlwifi/iwl-4965.c
View File

@@ -702,8 +702,6 @@ int iwl4965_hw_nic_init(struct iwl_priv *priv)
u32 val; u32 val;
u8 val_link; u8 val_link;
iwl4965_power_init_handle(priv);
/* nic_init */ /* nic_init */
spin_lock_irqsave(&priv->lock, flags); spin_lock_irqsave(&priv->lock, flags);
@@ -1433,6 +1431,17 @@ int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq)
return 0; return 0;
} }
/* set card power command */
static int iwl4965_set_power(struct iwl_priv *priv,
void *cmd)
{
int ret = 0;
ret = iwl_send_cmd_pdu_async(priv, POWER_TABLE_CMD,
sizeof(struct iwl4965_powertable_cmd),
cmd, NULL);
return ret;
}
int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power) int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
{ {
IWL_ERROR("TODO: Implement iwl4965_hw_reg_set_txpower!\n"); IWL_ERROR("TODO: Implement iwl4965_hw_reg_set_txpower!\n");
@@ -4336,6 +4345,8 @@ static struct iwl_lib_ops iwl4965_lib = {
.release_semaphore = iwlcore_eeprom_release_semaphore, .release_semaphore = iwlcore_eeprom_release_semaphore,
}, },
.radio_kill_sw = iwl4965_radio_kill_sw, .radio_kill_sw = iwl4965_radio_kill_sw,
.set_power = iwl4965_set_power,
.update_chain_flags = iwl4965_update_chain_flags,
}; };
static struct iwl_ops iwl4965_ops = { static struct iwl_ops iwl4965_ops = {

29
drivers/net/wireless/iwlwifi/iwl-4965.h
View File

@@ -44,6 +44,7 @@
#include "iwl-prph.h" #include "iwl-prph.h"
#include "iwl-debug.h" #include "iwl-debug.h"
#include "iwl-led.h" #include "iwl-led.h"
#include "iwl-power.h"
/* configuration for the iwl4965 */ /* configuration for the iwl4965 */
extern struct iwl_cfg iwl4965_agn_cfg; extern struct iwl_cfg iwl4965_agn_cfg;
@@ -257,31 +258,6 @@ enum iwl_pwr_src {
IWL_PWR_SRC_VAUX, IWL_PWR_SRC_VAUX,
}; };
struct iwl4965_power_vec_entry {
struct iwl4965_powertable_cmd cmd;
u8 no_dtim;
};
#define IWL_POWER_RANGE_0 (0)
#define IWL_POWER_RANGE_1 (1)
#define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */
#define IWL_POWER_INDEX_3 0x03
#define IWL_POWER_INDEX_5 0x05
#define IWL_POWER_AC 0x06
#define IWL_POWER_BATTERY 0x07
#define IWL_POWER_LIMIT 0x07
#define IWL_POWER_MASK 0x0F
#define IWL_POWER_ENABLED 0x10
#define IWL_POWER_LEVEL(x) ((x) & IWL_POWER_MASK)
struct iwl4965_power_mgr {
spinlock_t lock;
struct iwl4965_power_vec_entry pwr_range_0[IWL_POWER_AC];
struct iwl4965_power_vec_entry pwr_range_1[IWL_POWER_AC];
u8 active_index;
u32 dtim_val;
};
#define IEEE80211_DATA_LEN 2304 #define IEEE80211_DATA_LEN 2304
#define IEEE80211_4ADDR_LEN 30 #define IEEE80211_4ADDR_LEN 30
#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
@@ -674,6 +650,7 @@ extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv, extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv,
struct iwl4965_rx_queue *q); struct iwl4965_rx_queue *q);
extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr); extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src); int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
int iwl4965_init_geos(struct iwl_priv *priv); int iwl4965_init_geos(struct iwl_priv *priv);
@@ -1100,7 +1077,7 @@ struct iwl_priv {
u64 bytes; u64 bytes;
} tx_stats[3], rx_stats[3]; } tx_stats[3], rx_stats[3];
struct iwl4965_power_mgr power_data; struct iwl_power_mgr power_data;
struct iwl4965_notif_statistics statistics; struct iwl4965_notif_statistics statistics;
unsigned long last_statistics_time; unsigned long last_statistics_time;

3
drivers/net/wireless/iwlwifi/iwl-core.c
View File

@@ -37,6 +37,7 @@ struct iwl_priv; /* FIXME: remove */
#include "iwl-4965.h" /* FIXME: remove */ #include "iwl-4965.h" /* FIXME: remove */
#include "iwl-core.h" #include "iwl-core.h"
#include "iwl-rfkill.h" #include "iwl-rfkill.h"
#include "iwl-power.h"
MODULE_DESCRIPTION("iwl core"); MODULE_DESCRIPTION("iwl core");
@@ -263,8 +264,10 @@ int iwlcore_low_level_notify(struct iwl_priv *priv,
if (ret) if (ret)
IWL_ERROR("Unable to initialize RFKILL system. " IWL_ERROR("Unable to initialize RFKILL system. "
"Ignoring error: %d\n", ret); "Ignoring error: %d\n", ret);
iwl_power_initialize(priv);
break; break;
case IWLCORE_START_EVT: case IWLCORE_START_EVT:
iwl_power_update_mode(priv, 1);
break; break;
case IWLCORE_STOP_EVT: case IWLCORE_STOP_EVT:
break; break;

3
drivers/net/wireless/iwlwifi/iwl-core.h
View File

@@ -118,6 +118,9 @@ struct iwl_lib_ops {
struct { struct {
int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src); int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
} apm_ops; } apm_ops;
/* power */
int (*set_power)(struct iwl_priv *priv, void *cmd);
void (*update_chain_flags)(struct iwl_priv *priv);
/* eeprom operations (as defined in iwl-eeprom.h) */ /* eeprom operations (as defined in iwl-eeprom.h) */
struct iwl_eeprom_ops eeprom_ops; struct iwl_eeprom_ops eeprom_ops;
}; };

423
drivers/net/wireless/iwlwifi/iwl-power.c Normal file
View File

@@ -0,0 +1,423 @@
/******************************************************************************
*
* Copyright(c) 2007 - 2008 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:
* James P. Ketrenos <ipw2100-admin@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/init.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
#include "iwl-4965.h"
#include "iwl-core.h"
#include "iwl-4965-commands.h"
#include "iwl-debug.h"
#include "iwl-power.h"
#include "iwl-helpers.h"
/*
* Setting power level allow the card to go to sleep when not busy
* there are three factor that decide the power level to go to, they
* are list here with its priority
* 1- critical_power_setting this will be set according to card temperature.
* 2- system_power_setting this will be set by system PM manager.
* 3- user_power_setting this will be set by user either by writing to sys or
* mac80211
*
* if system_power_setting and user_power_setting is set to auto
* the power level will be decided according to association status and battery
* status.
*
*/
#define MSEC_TO_USEC 1024
#define IWL_POWER_RANGE_0_MAX (2)
#define IWL_POWER_RANGE_1_MAX (10)
#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)}
#define IWL_POWER_ON_BATTERY IWL_POWER_INDEX_5
#define IWL_POWER_ON_AC_DISASSOC IWL_POWER_MODE_CAM
#define IWL_POWER_ON_AC_ASSOC IWL_POWER_MODE_CAM
#define IWL_CT_KILL_TEMPERATURE 110
#define IWL_MIN_POWER_TEMPERATURE 100
#define IWL_REDUCED_POWER_TEMPERATURE 95
/* default power management (not Tx power) table values */
/* for tim 0-10 */
static struct iwl_power_vec_entry range_0[IWL_POWER_AC] = {
{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 2, 2, 0xFF)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 2, 2, 0xFF)}, 0},
{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 2, 2, 2, 0xFF)}, 0},
{{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 2, 4, 4, 0xFF)}, 1},
{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(2, 2, 4, 6, 0xFF)}, 2}
};
/* for tim = 3-10 */
static struct iwl_power_vec_entry range_1[IWL_POWER_AC] = {
{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 3, 4, 7)}, 0},
{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 4, 6, 7, 9)}, 0},
{{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 4, 6, 9, 10)}, 1},
{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(2, 4, 7, 10, 10)}, 2}
};
/* for tim > 11 */
static struct iwl_power_vec_entry range_2[IWL_POWER_AC] = {
{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
{{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
};
/* decide the right power level according to association status
* and battery status
*/
static u16 iwl_get_auto_power_mode(struct iwl_priv *priv)
{
u16 mode = priv->power_data.user_power_setting;
switch (priv->power_data.user_power_setting) {
case IWL_POWER_AUTO:
/* if running on battery */
if (priv->power_data.is_battery_active)
mode = IWL_POWER_ON_BATTERY;
else if (iwl_is_associated(priv))
mode = IWL_POWER_ON_AC_ASSOC;
else
mode = IWL_POWER_ON_AC_DISASSOC;
break;
case IWL_POWER_BATTERY:
mode = IWL_POWER_INDEX_3;
break;
case IWL_POWER_AC:
mode = IWL_POWER_MODE_CAM;
break;
}
return mode;
}
/* initialize to default */
static int iwl_power_init_handle(struct iwl_priv *priv)
{
int ret = 0, i;
struct iwl_power_mgr *pow_data;
int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_AC;
u16 pci_pm;
IWL_DEBUG_POWER("Initialize power \n");
pow_data = &(priv->power_data);
memset(pow_data, 0, sizeof(*pow_data));
memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
memcpy(&pow_data->pwr_range_2[0], &range_2[0], size);
ret = pci_read_config_word(priv->pci_dev,
PCI_LINK_CTRL, &pci_pm);
if (ret != 0)
return 0;
else {
struct iwl4965_powertable_cmd *cmd;
IWL_DEBUG_POWER("adjust power command flags\n");
for (i = 0; i < IWL_POWER_AC; i++) {
cmd = &pow_data->pwr_range_0[i].cmd;
if (pci_pm & 0x1)
cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
else
cmd->flags |= IWL_POWER_PCI_PM_MSK;
}
}
return ret;
}
/* adjust power command according to dtim period and power level*/
static int iwl_update_power_command(struct iwl_priv *priv,
struct iwl4965_powertable_cmd *cmd,
u16 mode)
{
int ret = 0, i;
u8 skip;
u32 max_sleep = 0;
struct iwl_power_vec_entry *range;
u8 period = 0;
struct iwl_power_mgr *pow_data;
if (mode > IWL_POWER_INDEX_5) {
IWL_DEBUG_POWER("Error invalid power mode \n");
return -1;
}
pow_data = &(priv->power_data);
if (pow_data->dtim_period <= IWL_POWER_RANGE_0_MAX)
range = &pow_data->pwr_range_0[0];
else if (pow_data->dtim_period <= IWL_POWER_RANGE_1_MAX)
range = &pow_data->pwr_range_1[0];
else
range = &pow_data->pwr_range_2[0];
period = pow_data->dtim_period;
memcpy(cmd, &range[mode].cmd, sizeof(struct iwl4965_powertable_cmd));
if (period == 0) {
period = 1;
skip = 0;
} else
skip = range[mode].no_dtim;
if (skip == 0) {
max_sleep = period;
cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
} else {
__le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
max_sleep = le32_to_cpu(slp_itrvl);
if (max_sleep == 0xFF)
max_sleep = period * (skip + 1);
else if (max_sleep > period)
max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
}
for (i = 0; i < IWL_POWER_VEC_SIZE; i++) {
if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
}
IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
le32_to_cpu(cmd->sleep_interval[0]),
le32_to_cpu(cmd->sleep_interval[1]),
le32_to_cpu(cmd->sleep_interval[2]),
le32_to_cpu(cmd->sleep_interval[3]),
le32_to_cpu(cmd->sleep_interval[4]));
return ret;
}
/*
* calucaute the final power mode index
*/
int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh)
{
struct iwl_power_mgr *setting = &(priv->power_data);
int ret = 0;
u16 uninitialized_var(final_mode);
/* If on battery, set to 3,
* if plugged into AC power, set to CAM ("continuously aware mode"),
* else user level */
switch (setting->system_power_setting) {
case IWL_POWER_AUTO:
final_mode = iwl_get_auto_power_mode(priv);
break;
case IWL_POWER_BATTERY:
final_mode = IWL_POWER_INDEX_3;
break;
case IWL_POWER_AC:
final_mode = IWL_POWER_MODE_CAM;
break;
default:
final_mode = setting->system_power_setting;
}
if (setting->critical_power_setting > final_mode)
final_mode = setting->critical_power_setting;
/* driver only support CAM for non STA network */
if (priv->iw_mode != IEEE80211_IF_TYPE_STA)
final_mode = IWL_POWER_MODE_CAM;
if (!iwl_is_rfkill(priv) && !setting->power_disabled &&
((setting->power_mode != final_mode) || refresh)) {
struct iwl4965_powertable_cmd cmd;
if (final_mode != IWL_POWER_MODE_CAM)
set_bit(STATUS_POWER_PMI, &priv->status);
iwl_update_power_command(priv, &cmd, final_mode);
cmd.keep_alive_beacons = 0;
if (final_mode == IWL_POWER_INDEX_5)
cmd.flags |= IWL_POWER_FAST_PD;
if (priv->cfg->ops->lib->set_power)
ret = priv->cfg->ops->lib->set_power(priv, &cmd);
if (final_mode == IWL_POWER_MODE_CAM)
clear_bit(STATUS_POWER_PMI, &priv->status);
else
set_bit(STATUS_POWER_PMI, &priv->status);
if (priv->cfg->ops->lib->update_chain_flags)
priv->cfg->ops->lib->update_chain_flags(priv);
if (!ret)
setting->power_mode = final_mode;
}
return ret;
}
EXPORT_SYMBOL(iwl_power_update_mode);
/* Allow other iwl code to disable/enable power management active
* this will be usefull for rate scale to disable PM during heavy
* Tx/Rx activities
*/
int iwl_power_disable_management(struct iwl_priv *priv)
{
u16 prev_mode;
int ret = 0;
if (priv->power_data.power_disabled)
return -EBUSY;
prev_mode = priv->power_data.user_power_setting;
priv->power_data.user_power_setting = IWL_POWER_MODE_CAM;
ret = iwl_power_update_mode(priv, 0);
priv->power_data.power_disabled = 1;
priv->power_data.user_power_setting = prev_mode;
return ret;
}
EXPORT_SYMBOL(iwl_power_disable_management);
/* Allow other iwl code to disable/enable power management active
* this will be usefull for rate scale to disable PM during hight
* valume activities
*/
int iwl_power_enable_management(struct iwl_priv *priv)
{
int ret = 0;
priv->power_data.power_disabled = 0;
ret = iwl_power_update_mode(priv, 0);
return ret;
}
EXPORT_SYMBOL(iwl_power_enable_management);
/* set user_power_setting */
int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
{
int ret = 0;
if (mode > IWL_POWER_LIMIT)
return -EINVAL;
priv->power_data.user_power_setting = mode;
ret = iwl_power_update_mode(priv, 0);
return ret;
}
EXPORT_SYMBOL(iwl_power_set_user_mode);
/* set system_power_setting. This should be set by over all
* PM application.
*/
int iwl_power_set_system_mode(struct iwl_priv *priv, u16 mode)
{
int ret = 0;
if (mode > IWL_POWER_LIMIT)
return -EINVAL;
priv->power_data.system_power_setting = mode;
ret = iwl_power_update_mode(priv, 0);
return ret;
}
EXPORT_SYMBOL(iwl_power_set_system_mode);
/* initilize to default */
void iwl_power_initialize(struct iwl_priv *priv)
{
iwl_power_init_handle(priv);
priv->power_data.user_power_setting = IWL_POWER_AUTO;
priv->power_data.power_disabled = 0;
priv->power_data.system_power_setting = IWL_POWER_AUTO;
priv->power_data.is_battery_active = 0;
priv->power_data.power_disabled = 0;
priv->power_data.critical_power_setting = 0;
}
EXPORT_SYMBOL(iwl_power_initialize);
/* set critical_power_setting according to temperature value */
int iwl_power_temperature_change(struct iwl_priv *priv)
{
int ret = 0;
u16 new_critical = priv->power_data.critical_power_setting;
s32 temperature = KELVIN_TO_CELSIUS(priv->last_temperature);
if (temperature > IWL_CT_KILL_TEMPERATURE)
return 0;
else if (temperature > IWL_MIN_POWER_TEMPERATURE)
new_critical = IWL_POWER_INDEX_5;
else if (temperature > IWL_REDUCED_POWER_TEMPERATURE)
new_critical = IWL_POWER_INDEX_3;
else
new_critical = IWL_POWER_MODE_CAM;
if (new_critical != priv->power_data.critical_power_setting)
priv->power_data.critical_power_setting = new_critical;
if (priv->power_data.critical_power_setting >
priv->power_data.power_mode)
ret = iwl_power_update_mode(priv, 0);
return ret;
}
EXPORT_SYMBOL(iwl_power_temperature_change);

76
drivers/net/wireless/iwlwifi/iwl-power.h Normal file
View File

@@ -0,0 +1,76 @@
/******************************************************************************
*
* Copyright(c) 2007 - 2008 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:
* James P. Ketrenos <ipw2100-admin@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-4965-commands.h"
struct iwl_priv;
#define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */
#define IWL_POWER_INDEX_3 0x03
#define IWL_POWER_INDEX_5 0x05
#define IWL_POWER_AC 0x06
#define IWL_POWER_BATTERY 0x07
#define IWL_POWER_AUTO 0x08
#define IWL_POWER_LIMIT 0x08
#define IWL_POWER_MASK 0x0F
#define IWL_POWER_ENABLED 0x10
/* Power management (not Tx power) structures */
struct iwl_power_vec_entry {
struct iwl4965_powertable_cmd cmd;
u8 no_dtim;
};
struct iwl_power_mgr {
spinlock_t lock;
struct iwl_power_vec_entry pwr_range_0[IWL_POWER_AC];
struct iwl_power_vec_entry pwr_range_1[IWL_POWER_AC];
struct iwl_power_vec_entry pwr_range_2[IWL_POWER_AC];
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 syatem 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 */
};
int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh);
int iwl_power_disable_management(struct iwl_priv *priv);
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__ */

217
drivers/net/wireless/iwlwifi/iwl4965-base.c
View File

@@ -879,6 +879,13 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv)
return 0; return 0;
} }
void iwl4965_update_chain_flags(struct iwl_priv *priv)
{
iwl4965_set_rxon_chain(priv);
iwl4965_commit_rxon(priv);
}
static int iwl4965_send_bt_config(struct iwl_priv *priv) static int iwl4965_send_bt_config(struct iwl_priv *priv)
{ {
struct iwl4965_bt_cmd bt_cmd = { struct iwl4965_bt_cmd bt_cmd = {
@@ -1366,184 +1373,6 @@ static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force)
} }
} }
/*
* Power management (not Tx power!) functions
*/
#define MSEC_TO_USEC 1024
#define NOSLP __constant_cpu_to_le16(0), 0, 0
#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
#define SLP_TIMEOUT(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)}
/* default power management (not Tx power) table values */
/* for tim 0-10 */
static struct iwl4965_power_vec_entry range_0[IWL_POWER_AC] = {
{{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
{{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
{{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
{{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
{{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
{{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
};
/* for tim > 10 */
static struct iwl4965_power_vec_entry range_1[IWL_POWER_AC] = {
{{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
{{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
{{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
{{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
{{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
{{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
};
int iwl4965_power_init_handle(struct iwl_priv *priv)
{
int rc = 0, i;
struct iwl4965_power_mgr *pow_data;
int size = sizeof(struct iwl4965_power_vec_entry) * IWL_POWER_AC;
u16 pci_pm;
IWL_DEBUG_POWER("Initialize power \n");
pow_data = &(priv->power_data);
memset(pow_data, 0, sizeof(*pow_data));
pow_data->active_index = IWL_POWER_RANGE_0;
pow_data->dtim_val = 0xffff;
memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
if (rc != 0)
return 0;
else {
struct iwl4965_powertable_cmd *cmd;
IWL_DEBUG_POWER("adjust power command flags\n");
for (i = 0; i < IWL_POWER_AC; i++) {
cmd = &pow_data->pwr_range_0[i].cmd;
if (pci_pm & 0x1)
cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
else
cmd->flags |= IWL_POWER_PCI_PM_MSK;
}
}
return rc;
}
static int iwl4965_update_power_cmd(struct iwl_priv *priv,
struct iwl4965_powertable_cmd *cmd, u32 mode)
{
int rc = 0, i;
u8 skip;
u32 max_sleep = 0;
struct iwl4965_power_vec_entry *range;
u8 period = 0;
struct iwl4965_power_mgr *pow_data;
if (mode > IWL_POWER_INDEX_5) {
IWL_DEBUG_POWER("Error invalid power mode \n");
return -1;
}
pow_data = &(priv->power_data);
if (pow_data->active_index == IWL_POWER_RANGE_0)
range = &pow_data->pwr_range_0[0];
else
range = &pow_data->pwr_range_1[1];
memcpy(cmd, &range[mode].cmd, sizeof(struct iwl4965_powertable_cmd));
#ifdef IWL_MAC80211_DISABLE
if (priv->assoc_network != NULL) {
unsigned long flags;
period = priv->assoc_network->tim.tim_period;
}
#endif /*IWL_MAC80211_DISABLE */
skip = range[mode].no_dtim;
if (period == 0) {
period = 1;
skip = 0;
}
if (skip == 0) {
max_sleep = period;
cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
} else {
__le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
}
for (i = 0; i < IWL_POWER_VEC_SIZE; i++) {
if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
}
IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
le32_to_cpu(cmd->sleep_interval[0]),
le32_to_cpu(cmd->sleep_interval[1]),
le32_to_cpu(cmd->sleep_interval[2]),
le32_to_cpu(cmd->sleep_interval[3]),
le32_to_cpu(cmd->sleep_interval[4]));
return rc;
}
static int iwl4965_send_power_mode(struct iwl_priv *priv, u32 mode)
{
u32 uninitialized_var(final_mode);
int rc;
struct iwl4965_powertable_cmd cmd;
/* If on battery, set to 3,
* if plugged into AC power, set to CAM ("continuously aware mode"),
* else user level */
switch (mode) {
case IWL_POWER_BATTERY:
final_mode = IWL_POWER_INDEX_3;
break;
case IWL_POWER_AC:
final_mode = IWL_POWER_MODE_CAM;
break;
default:
final_mode = mode;
break;
}
cmd.keep_alive_beacons = 0;
iwl4965_update_power_cmd(priv, &cmd, final_mode);
rc = iwl_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd);
if (final_mode == IWL_POWER_MODE_CAM)
clear_bit(STATUS_POWER_PMI, &priv->status);
else
set_bit(STATUS_POWER_PMI, &priv->status);
return rc;
}
int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header) int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header)
{ {
/* Filter incoming packets to determine if they are targeted toward /* Filter incoming packets to determine if they are targeted toward
@@ -5304,8 +5133,6 @@ static void iwl4965_alive_start(struct iwl_priv *priv)
priv->active_rate = priv->rates_mask; priv->active_rate = priv->rates_mask;
priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
iwl4965_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
if (iwl_is_associated(priv)) { if (iwl_is_associated(priv)) {
struct iwl4965_rxon_cmd *active_rxon = struct iwl4965_rxon_cmd *active_rxon =
(struct iwl4965_rxon_cmd *)(&priv->active_rxon); (struct iwl4965_rxon_cmd *)(&priv->active_rxon);
@@ -5838,6 +5665,8 @@ static void iwl4965_bg_request_scan(struct work_struct *data)
direct_mask, direct_mask,
(void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK |
RXON_FILTER_BCON_AWARE_MSK);
cmd.len += le16_to_cpu(scan->tx_cmd.len) + cmd.len += le16_to_cpu(scan->tx_cmd.len) +
scan->channel_count * sizeof(struct iwl4965_scan_channel); scan->channel_count * sizeof(struct iwl4965_scan_channel);
cmd.data = scan; cmd.data = scan;
@@ -6000,6 +5829,7 @@ static void iwl4965_post_associate(struct iwl_priv *priv)
iwl4965_activate_qos(priv, 0); iwl4965_activate_qos(priv, 0);
iwl_power_update_mode(priv, 0);
/* we have just associated, don't start scan too early */ /* we have just associated, don't start scan too early */
priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
} }
@@ -6990,6 +6820,8 @@ static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
iwl4965_commit_rxon(priv); iwl4965_commit_rxon(priv);
} }
iwl_power_update_mode(priv, 0);
/* Per mac80211.h: This is only used in IBSS mode... */ /* Per mac80211.h: This is only used in IBSS mode... */
if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) { if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
@@ -7321,20 +7153,11 @@ static ssize_t store_power_level(struct device *d,
goto out; goto out;
} }
if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC)) rc = iwl_power_set_user_mode(priv, mode);
mode = IWL_POWER_AC; if (rc) {
else IWL_DEBUG_MAC80211("failed setting power mode.\n");
mode |= IWL_POWER_ENABLED; goto out;
if (mode != priv->power_mode) {
rc = iwl4965_send_power_mode(priv, IWL_POWER_LEVEL(mode));
if (rc) {
IWL_DEBUG_MAC80211("failed setting power mode.\n");
goto out;
}
priv->power_mode = mode;
} }
rc = count; rc = count;
out: out:
@@ -7364,7 +7187,7 @@ static ssize_t show_power_level(struct device *d,
struct device_attribute *attr, char *buf) struct device_attribute *attr, char *buf)
{ {
struct iwl_priv *priv = dev_get_drvdata(d); struct iwl_priv *priv = dev_get_drvdata(d);
int level = IWL_POWER_LEVEL(priv->power_mode); int level = priv->power_data.power_mode;
char *p = buf; char *p = buf;
p += sprintf(p, "%d ", level); p += sprintf(p, "%d ", level);
@@ -7382,14 +7205,14 @@ static ssize_t show_power_level(struct device *d,
timeout_duration[level - 1] / 1000, timeout_duration[level - 1] / 1000,
period_duration[level - 1] / 1000); period_duration[level - 1] / 1000);
} }
/*
if (!(priv->power_mode & IWL_POWER_ENABLED)) if (!(priv->power_mode & IWL_POWER_ENABLED))
p += sprintf(p, " OFF\n"); p += sprintf(p, " OFF\n");
else else
p += sprintf(p, " \n"); p += sprintf(p, " \n");
*/
p += sprintf(p, " \n");
return (p - buf + 1); return (p - buf + 1);
} }
static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,