mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-11-01 08:38:52 +01:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
690
drivers/net/wireless/iwlwifi/dvm/tt.c
Normal file
690
drivers/net/wireless/iwlwifi/dvm/tt.c
Normal file
|
|
@ -0,0 +1,690 @@
|
|||
/******************************************************************************
|
||||
*
|
||||
* Copyright(c) 2007 - 2014 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
|
||||
*****************************************************************************/
|
||||
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/slab.h>
|
||||
#include <net/mac80211.h>
|
||||
#include "iwl-io.h"
|
||||
#include "iwl-modparams.h"
|
||||
#include "iwl-debug.h"
|
||||
#include "agn.h"
|
||||
#include "dev.h"
|
||||
#include "commands.h"
|
||||
#include "tt.h"
|
||||
|
||||
/* default Thermal Throttling transaction table
|
||||
* Current state | Throttling Down | Throttling Up
|
||||
*=============================================================================
|
||||
* Condition Nxt State Condition Nxt State Condition Nxt State
|
||||
*-----------------------------------------------------------------------------
|
||||
* IWL_TI_0 T >= 114 CT_KILL 114>T>=105 TI_1 N/A N/A
|
||||
* IWL_TI_1 T >= 114 CT_KILL 114>T>=110 TI_2 T<=95 TI_0
|
||||
* IWL_TI_2 T >= 114 CT_KILL T<=100 TI_1
|
||||
* IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0
|
||||
*=============================================================================
|
||||
*/
|
||||
static const struct iwl_tt_trans tt_range_0[IWL_TI_STATE_MAX - 1] = {
|
||||
{IWL_TI_0, IWL_ABSOLUTE_ZERO, 104},
|
||||
{IWL_TI_1, 105, CT_KILL_THRESHOLD - 1},
|
||||
{IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}
|
||||
};
|
||||
static const struct iwl_tt_trans tt_range_1[IWL_TI_STATE_MAX - 1] = {
|
||||
{IWL_TI_0, IWL_ABSOLUTE_ZERO, 95},
|
||||
{IWL_TI_2, 110, CT_KILL_THRESHOLD - 1},
|
||||
{IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}
|
||||
};
|
||||
static const struct iwl_tt_trans tt_range_2[IWL_TI_STATE_MAX - 1] = {
|
||||
{IWL_TI_1, IWL_ABSOLUTE_ZERO, 100},
|
||||
{IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX},
|
||||
{IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}
|
||||
};
|
||||
static const struct iwl_tt_trans tt_range_3[IWL_TI_STATE_MAX - 1] = {
|
||||
{IWL_TI_0, IWL_ABSOLUTE_ZERO, CT_KILL_EXIT_THRESHOLD},
|
||||
{IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX},
|
||||
{IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
|
||||
};
|
||||
|
||||
/* Advance Thermal Throttling default restriction table */
|
||||
static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = {
|
||||
{IWL_ANT_OK_MULTI, IWL_ANT_OK_MULTI, true },
|
||||
{IWL_ANT_OK_SINGLE, IWL_ANT_OK_MULTI, true },
|
||||
{IWL_ANT_OK_SINGLE, IWL_ANT_OK_SINGLE, false },
|
||||
{IWL_ANT_OK_NONE, IWL_ANT_OK_NONE, false }
|
||||
};
|
||||
|
||||
bool iwl_tt_is_low_power_state(struct iwl_priv *priv)
|
||||
{
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
|
||||
if (tt->state >= IWL_TI_1)
|
||||
return true;
|
||||
return false;
|
||||
}
|
||||
|
||||
u8 iwl_tt_current_power_mode(struct iwl_priv *priv)
|
||||
{
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
|
||||
return tt->tt_power_mode;
|
||||
}
|
||||
|
||||
bool iwl_ht_enabled(struct iwl_priv *priv)
|
||||
{
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
struct iwl_tt_restriction *restriction;
|
||||
|
||||
if (!priv->thermal_throttle.advanced_tt)
|
||||
return true;
|
||||
restriction = tt->restriction + tt->state;
|
||||
return restriction->is_ht;
|
||||
}
|
||||
|
||||
static bool iwl_within_ct_kill_margin(struct iwl_priv *priv)
|
||||
{
|
||||
s32 temp = priv->temperature; /* degrees CELSIUS except specified */
|
||||
bool within_margin = false;
|
||||
|
||||
if (!priv->thermal_throttle.advanced_tt)
|
||||
within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >=
|
||||
CT_KILL_THRESHOLD_LEGACY) ? true : false;
|
||||
else
|
||||
within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >=
|
||||
CT_KILL_THRESHOLD) ? true : false;
|
||||
return within_margin;
|
||||
}
|
||||
|
||||
bool iwl_check_for_ct_kill(struct iwl_priv *priv)
|
||||
{
|
||||
bool is_ct_kill = false;
|
||||
|
||||
if (iwl_within_ct_kill_margin(priv)) {
|
||||
iwl_tt_enter_ct_kill(priv);
|
||||
is_ct_kill = true;
|
||||
}
|
||||
return is_ct_kill;
|
||||
}
|
||||
|
||||
enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv)
|
||||
{
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
struct iwl_tt_restriction *restriction;
|
||||
|
||||
if (!priv->thermal_throttle.advanced_tt)
|
||||
return IWL_ANT_OK_MULTI;
|
||||
restriction = tt->restriction + tt->state;
|
||||
return restriction->tx_stream;
|
||||
}
|
||||
|
||||
enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv)
|
||||
{
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
struct iwl_tt_restriction *restriction;
|
||||
|
||||
if (!priv->thermal_throttle.advanced_tt)
|
||||
return IWL_ANT_OK_MULTI;
|
||||
restriction = tt->restriction + tt->state;
|
||||
return restriction->rx_stream;
|
||||
}
|
||||
|
||||
#define CT_KILL_EXIT_DURATION (5) /* 5 seconds duration */
|
||||
#define CT_KILL_WAITING_DURATION (300) /* 300ms duration */
|
||||
|
||||
/*
|
||||
* toggle the bit to wake up uCode and check the temperature
|
||||
* if the temperature is below CT, uCode will stay awake and send card
|
||||
* state notification with CT_KILL bit clear to inform Thermal Throttling
|
||||
* Management to change state. Otherwise, uCode will go back to sleep
|
||||
* without doing anything, driver should continue the 5 seconds timer
|
||||
* to wake up uCode for temperature check until temperature drop below CT
|
||||
*/
|
||||
static void iwl_tt_check_exit_ct_kill(unsigned long data)
|
||||
{
|
||||
struct iwl_priv *priv = (struct iwl_priv *)data;
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
unsigned long flags;
|
||||
|
||||
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
||||
return;
|
||||
|
||||
if (tt->state == IWL_TI_CT_KILL) {
|
||||
if (priv->thermal_throttle.ct_kill_toggle) {
|
||||
iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
|
||||
CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
|
||||
priv->thermal_throttle.ct_kill_toggle = false;
|
||||
} else {
|
||||
iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET,
|
||||
CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
|
||||
priv->thermal_throttle.ct_kill_toggle = true;
|
||||
}
|
||||
iwl_read32(priv->trans, CSR_UCODE_DRV_GP1);
|
||||
if (iwl_trans_grab_nic_access(priv->trans, false, &flags))
|
||||
iwl_trans_release_nic_access(priv->trans, &flags);
|
||||
|
||||
/* Reschedule the ct_kill timer to occur in
|
||||
* CT_KILL_EXIT_DURATION seconds to ensure we get a
|
||||
* thermal update */
|
||||
IWL_DEBUG_TEMP(priv, "schedule ct_kill exit timer\n");
|
||||
mod_timer(&priv->thermal_throttle.ct_kill_exit_tm,
|
||||
jiffies + CT_KILL_EXIT_DURATION * HZ);
|
||||
}
|
||||
}
|
||||
|
||||
static void iwl_perform_ct_kill_task(struct iwl_priv *priv,
|
||||
bool stop)
|
||||
{
|
||||
if (stop) {
|
||||
IWL_DEBUG_TEMP(priv, "Stop all queues\n");
|
||||
if (priv->mac80211_registered)
|
||||
ieee80211_stop_queues(priv->hw);
|
||||
IWL_DEBUG_TEMP(priv,
|
||||
"Schedule 5 seconds CT_KILL Timer\n");
|
||||
mod_timer(&priv->thermal_throttle.ct_kill_exit_tm,
|
||||
jiffies + CT_KILL_EXIT_DURATION * HZ);
|
||||
} else {
|
||||
IWL_DEBUG_TEMP(priv, "Wake all queues\n");
|
||||
if (priv->mac80211_registered)
|
||||
ieee80211_wake_queues(priv->hw);
|
||||
}
|
||||
}
|
||||
|
||||
static void iwl_tt_ready_for_ct_kill(unsigned long data)
|
||||
{
|
||||
struct iwl_priv *priv = (struct iwl_priv *)data;
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
|
||||
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
||||
return;
|
||||
|
||||
/* temperature timer expired, ready to go into CT_KILL state */
|
||||
if (tt->state != IWL_TI_CT_KILL) {
|
||||
IWL_DEBUG_TEMP(priv, "entering CT_KILL state when "
|
||||
"temperature timer expired\n");
|
||||
tt->state = IWL_TI_CT_KILL;
|
||||
set_bit(STATUS_CT_KILL, &priv->status);
|
||||
iwl_perform_ct_kill_task(priv, true);
|
||||
}
|
||||
}
|
||||
|
||||
static void iwl_prepare_ct_kill_task(struct iwl_priv *priv)
|
||||
{
|
||||
IWL_DEBUG_TEMP(priv, "Prepare to enter IWL_TI_CT_KILL\n");
|
||||
/* make request to retrieve statistics information */
|
||||
iwl_send_statistics_request(priv, 0, false);
|
||||
/* Reschedule the ct_kill wait timer */
|
||||
mod_timer(&priv->thermal_throttle.ct_kill_waiting_tm,
|
||||
jiffies + msecs_to_jiffies(CT_KILL_WAITING_DURATION));
|
||||
}
|
||||
|
||||
#define IWL_MINIMAL_POWER_THRESHOLD (CT_KILL_THRESHOLD_LEGACY)
|
||||
#define IWL_REDUCED_PERFORMANCE_THRESHOLD_2 (100)
|
||||
#define IWL_REDUCED_PERFORMANCE_THRESHOLD_1 (90)
|
||||
|
||||
/*
|
||||
* Legacy thermal throttling
|
||||
* 1) Avoid NIC destruction due to high temperatures
|
||||
* Chip will identify dangerously high temperatures that can
|
||||
* harm the device and will power down
|
||||
* 2) Avoid the NIC power down due to high temperature
|
||||
* Throttle early enough to lower the power consumption before
|
||||
* drastic steps are needed
|
||||
*/
|
||||
static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp, bool force)
|
||||
{
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
enum iwl_tt_state old_state;
|
||||
|
||||
#ifdef CONFIG_IWLWIFI_DEBUG
|
||||
if ((tt->tt_previous_temp) &&
|
||||
(temp > tt->tt_previous_temp) &&
|
||||
((temp - tt->tt_previous_temp) >
|
||||
IWL_TT_INCREASE_MARGIN)) {
|
||||
IWL_DEBUG_TEMP(priv,
|
||||
"Temperature increase %d degree Celsius\n",
|
||||
(temp - tt->tt_previous_temp));
|
||||
}
|
||||
#endif
|
||||
old_state = tt->state;
|
||||
/* in Celsius */
|
||||
if (temp >= IWL_MINIMAL_POWER_THRESHOLD)
|
||||
tt->state = IWL_TI_CT_KILL;
|
||||
else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_2)
|
||||
tt->state = IWL_TI_2;
|
||||
else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_1)
|
||||
tt->state = IWL_TI_1;
|
||||
else
|
||||
tt->state = IWL_TI_0;
|
||||
|
||||
#ifdef CONFIG_IWLWIFI_DEBUG
|
||||
tt->tt_previous_temp = temp;
|
||||
#endif
|
||||
/* stop ct_kill_waiting_tm timer */
|
||||
del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm);
|
||||
if (tt->state != old_state) {
|
||||
switch (tt->state) {
|
||||
case IWL_TI_0:
|
||||
/*
|
||||
* When the system is ready to go back to IWL_TI_0
|
||||
* we only have to call iwl_power_update_mode() to
|
||||
* do so.
|
||||
*/
|
||||
break;
|
||||
case IWL_TI_1:
|
||||
tt->tt_power_mode = IWL_POWER_INDEX_3;
|
||||
break;
|
||||
case IWL_TI_2:
|
||||
tt->tt_power_mode = IWL_POWER_INDEX_4;
|
||||
break;
|
||||
default:
|
||||
tt->tt_power_mode = IWL_POWER_INDEX_5;
|
||||
break;
|
||||
}
|
||||
mutex_lock(&priv->mutex);
|
||||
if (old_state == IWL_TI_CT_KILL)
|
||||
clear_bit(STATUS_CT_KILL, &priv->status);
|
||||
if (tt->state != IWL_TI_CT_KILL &&
|
||||
iwl_power_update_mode(priv, true)) {
|
||||
/* TT state not updated
|
||||
* try again during next temperature read
|
||||
*/
|
||||
if (old_state == IWL_TI_CT_KILL)
|
||||
set_bit(STATUS_CT_KILL, &priv->status);
|
||||
tt->state = old_state;
|
||||
IWL_ERR(priv, "Cannot update power mode, "
|
||||
"TT state not updated\n");
|
||||
} else {
|
||||
if (tt->state == IWL_TI_CT_KILL) {
|
||||
if (force) {
|
||||
set_bit(STATUS_CT_KILL, &priv->status);
|
||||
iwl_perform_ct_kill_task(priv, true);
|
||||
} else {
|
||||
iwl_prepare_ct_kill_task(priv);
|
||||
tt->state = old_state;
|
||||
}
|
||||
} else if (old_state == IWL_TI_CT_KILL &&
|
||||
tt->state != IWL_TI_CT_KILL)
|
||||
iwl_perform_ct_kill_task(priv, false);
|
||||
IWL_DEBUG_TEMP(priv, "Temperature state changed %u\n",
|
||||
tt->state);
|
||||
IWL_DEBUG_TEMP(priv, "Power Index change to %u\n",
|
||||
tt->tt_power_mode);
|
||||
}
|
||||
mutex_unlock(&priv->mutex);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Advance thermal throttling
|
||||
* 1) Avoid NIC destruction due to high temperatures
|
||||
* Chip will identify dangerously high temperatures that can
|
||||
* harm the device and will power down
|
||||
* 2) Avoid the NIC power down due to high temperature
|
||||
* Throttle early enough to lower the power consumption before
|
||||
* drastic steps are needed
|
||||
* Actions include relaxing the power down sleep thresholds and
|
||||
* decreasing the number of TX streams
|
||||
* 3) Avoid throughput performance impact as much as possible
|
||||
*
|
||||
*=============================================================================
|
||||
* Condition Nxt State Condition Nxt State Condition Nxt State
|
||||
*-----------------------------------------------------------------------------
|
||||
* IWL_TI_0 T >= 114 CT_KILL 114>T>=105 TI_1 N/A N/A
|
||||
* IWL_TI_1 T >= 114 CT_KILL 114>T>=110 TI_2 T<=95 TI_0
|
||||
* IWL_TI_2 T >= 114 CT_KILL T<=100 TI_1
|
||||
* IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0
|
||||
*=============================================================================
|
||||
*/
|
||||
static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp, bool force)
|
||||
{
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
int i;
|
||||
bool changed = false;
|
||||
enum iwl_tt_state old_state;
|
||||
struct iwl_tt_trans *transaction;
|
||||
|
||||
old_state = tt->state;
|
||||
for (i = 0; i < IWL_TI_STATE_MAX - 1; i++) {
|
||||
/* based on the current TT state,
|
||||
* find the curresponding transaction table
|
||||
* each table has (IWL_TI_STATE_MAX - 1) entries
|
||||
* tt->transaction + ((old_state * (IWL_TI_STATE_MAX - 1))
|
||||
* will advance to the correct table.
|
||||
* then based on the current temperature
|
||||
* find the next state need to transaction to
|
||||
* go through all the possible (IWL_TI_STATE_MAX - 1) entries
|
||||
* in the current table to see if transaction is needed
|
||||
*/
|
||||
transaction = tt->transaction +
|
||||
((old_state * (IWL_TI_STATE_MAX - 1)) + i);
|
||||
if (temp >= transaction->tt_low &&
|
||||
temp <= transaction->tt_high) {
|
||||
#ifdef CONFIG_IWLWIFI_DEBUG
|
||||
if ((tt->tt_previous_temp) &&
|
||||
(temp > tt->tt_previous_temp) &&
|
||||
((temp - tt->tt_previous_temp) >
|
||||
IWL_TT_INCREASE_MARGIN)) {
|
||||
IWL_DEBUG_TEMP(priv,
|
||||
"Temperature increase %d "
|
||||
"degree Celsius\n",
|
||||
(temp - tt->tt_previous_temp));
|
||||
}
|
||||
tt->tt_previous_temp = temp;
|
||||
#endif
|
||||
if (old_state !=
|
||||
transaction->next_state) {
|
||||
changed = true;
|
||||
tt->state =
|
||||
transaction->next_state;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* stop ct_kill_waiting_tm timer */
|
||||
del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm);
|
||||
if (changed) {
|
||||
if (tt->state >= IWL_TI_1) {
|
||||
/* force PI = IWL_POWER_INDEX_5 in the case of TI > 0 */
|
||||
tt->tt_power_mode = IWL_POWER_INDEX_5;
|
||||
|
||||
if (!iwl_ht_enabled(priv)) {
|
||||
struct iwl_rxon_context *ctx;
|
||||
|
||||
for_each_context(priv, ctx) {
|
||||
struct iwl_rxon_cmd *rxon;
|
||||
|
||||
rxon = &ctx->staging;
|
||||
|
||||
/* disable HT */
|
||||
rxon->flags &= ~(
|
||||
RXON_FLG_CHANNEL_MODE_MSK |
|
||||
RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
|
||||
RXON_FLG_HT40_PROT_MSK |
|
||||
RXON_FLG_HT_PROT_MSK);
|
||||
}
|
||||
} else {
|
||||
/* check HT capability and set
|
||||
* according to the system HT capability
|
||||
* in case get disabled before */
|
||||
iwl_set_rxon_ht(priv, &priv->current_ht_config);
|
||||
}
|
||||
|
||||
} else {
|
||||
/*
|
||||
* restore system power setting -- it will be
|
||||
* recalculated automatically.
|
||||
*/
|
||||
|
||||
/* check HT capability and set
|
||||
* according to the system HT capability
|
||||
* in case get disabled before */
|
||||
iwl_set_rxon_ht(priv, &priv->current_ht_config);
|
||||
}
|
||||
mutex_lock(&priv->mutex);
|
||||
if (old_state == IWL_TI_CT_KILL)
|
||||
clear_bit(STATUS_CT_KILL, &priv->status);
|
||||
if (tt->state != IWL_TI_CT_KILL &&
|
||||
iwl_power_update_mode(priv, true)) {
|
||||
/* TT state not updated
|
||||
* try again during next temperature read
|
||||
*/
|
||||
IWL_ERR(priv, "Cannot update power mode, "
|
||||
"TT state not updated\n");
|
||||
if (old_state == IWL_TI_CT_KILL)
|
||||
set_bit(STATUS_CT_KILL, &priv->status);
|
||||
tt->state = old_state;
|
||||
} else {
|
||||
IWL_DEBUG_TEMP(priv,
|
||||
"Thermal Throttling to new state: %u\n",
|
||||
tt->state);
|
||||
if (old_state != IWL_TI_CT_KILL &&
|
||||
tt->state == IWL_TI_CT_KILL) {
|
||||
if (force) {
|
||||
IWL_DEBUG_TEMP(priv,
|
||||
"Enter IWL_TI_CT_KILL\n");
|
||||
set_bit(STATUS_CT_KILL, &priv->status);
|
||||
iwl_perform_ct_kill_task(priv, true);
|
||||
} else {
|
||||
tt->state = old_state;
|
||||
iwl_prepare_ct_kill_task(priv);
|
||||
}
|
||||
} else if (old_state == IWL_TI_CT_KILL &&
|
||||
tt->state != IWL_TI_CT_KILL) {
|
||||
IWL_DEBUG_TEMP(priv, "Exit IWL_TI_CT_KILL\n");
|
||||
iwl_perform_ct_kill_task(priv, false);
|
||||
}
|
||||
}
|
||||
mutex_unlock(&priv->mutex);
|
||||
}
|
||||
}
|
||||
|
||||
/* Card State Notification indicated reach critical temperature
|
||||
* if PSP not enable, no Thermal Throttling function will be performed
|
||||
* just set the GP1 bit to acknowledge the event
|
||||
* otherwise, go into IWL_TI_CT_KILL state
|
||||
* since Card State Notification will not provide any temperature reading
|
||||
* for Legacy mode
|
||||
* so just pass the CT_KILL temperature to iwl_legacy_tt_handler()
|
||||
* for advance mode
|
||||
* pass CT_KILL_THRESHOLD+1 to make sure move into IWL_TI_CT_KILL state
|
||||
*/
|
||||
static void iwl_bg_ct_enter(struct work_struct *work)
|
||||
{
|
||||
struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_enter);
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
|
||||
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
||||
return;
|
||||
|
||||
if (!iwl_is_ready(priv))
|
||||
return;
|
||||
|
||||
if (tt->state != IWL_TI_CT_KILL) {
|
||||
IWL_ERR(priv, "Device reached critical temperature "
|
||||
"- ucode going to sleep!\n");
|
||||
if (!priv->thermal_throttle.advanced_tt)
|
||||
iwl_legacy_tt_handler(priv,
|
||||
IWL_MINIMAL_POWER_THRESHOLD,
|
||||
true);
|
||||
else
|
||||
iwl_advance_tt_handler(priv,
|
||||
CT_KILL_THRESHOLD + 1, true);
|
||||
}
|
||||
}
|
||||
|
||||
/* Card State Notification indicated out of critical temperature
|
||||
* since Card State Notification will not provide any temperature reading
|
||||
* so pass the IWL_REDUCED_PERFORMANCE_THRESHOLD_2 temperature
|
||||
* to iwl_legacy_tt_handler() to get out of IWL_CT_KILL state
|
||||
*/
|
||||
static void iwl_bg_ct_exit(struct work_struct *work)
|
||||
{
|
||||
struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_exit);
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
|
||||
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
||||
return;
|
||||
|
||||
if (!iwl_is_ready(priv))
|
||||
return;
|
||||
|
||||
/* stop ct_kill_exit_tm timer */
|
||||
del_timer_sync(&priv->thermal_throttle.ct_kill_exit_tm);
|
||||
|
||||
if (tt->state == IWL_TI_CT_KILL) {
|
||||
IWL_ERR(priv,
|
||||
"Device temperature below critical"
|
||||
"- ucode awake!\n");
|
||||
/*
|
||||
* exit from CT_KILL state
|
||||
* reset the current temperature reading
|
||||
*/
|
||||
priv->temperature = 0;
|
||||
if (!priv->thermal_throttle.advanced_tt)
|
||||
iwl_legacy_tt_handler(priv,
|
||||
IWL_REDUCED_PERFORMANCE_THRESHOLD_2,
|
||||
true);
|
||||
else
|
||||
iwl_advance_tt_handler(priv, CT_KILL_EXIT_THRESHOLD,
|
||||
true);
|
||||
}
|
||||
}
|
||||
|
||||
void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
|
||||
{
|
||||
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
||||
return;
|
||||
|
||||
IWL_DEBUG_TEMP(priv, "Queueing critical temperature enter.\n");
|
||||
queue_work(priv->workqueue, &priv->ct_enter);
|
||||
}
|
||||
|
||||
void iwl_tt_exit_ct_kill(struct iwl_priv *priv)
|
||||
{
|
||||
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
||||
return;
|
||||
|
||||
IWL_DEBUG_TEMP(priv, "Queueing critical temperature exit.\n");
|
||||
queue_work(priv->workqueue, &priv->ct_exit);
|
||||
}
|
||||
|
||||
static void iwl_bg_tt_work(struct work_struct *work)
|
||||
{
|
||||
struct iwl_priv *priv = container_of(work, struct iwl_priv, tt_work);
|
||||
s32 temp = priv->temperature; /* degrees CELSIUS except specified */
|
||||
|
||||
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
||||
return;
|
||||
|
||||
if (!priv->thermal_throttle.advanced_tt)
|
||||
iwl_legacy_tt_handler(priv, temp, false);
|
||||
else
|
||||
iwl_advance_tt_handler(priv, temp, false);
|
||||
}
|
||||
|
||||
void iwl_tt_handler(struct iwl_priv *priv)
|
||||
{
|
||||
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
||||
return;
|
||||
|
||||
IWL_DEBUG_TEMP(priv, "Queueing thermal throttling work.\n");
|
||||
queue_work(priv->workqueue, &priv->tt_work);
|
||||
}
|
||||
|
||||
/* Thermal throttling initialization
|
||||
* For advance thermal throttling:
|
||||
* Initialize Thermal Index and temperature threshold table
|
||||
* Initialize thermal throttling restriction table
|
||||
*/
|
||||
void iwl_tt_initialize(struct iwl_priv *priv)
|
||||
{
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
int size = sizeof(struct iwl_tt_trans) * (IWL_TI_STATE_MAX - 1);
|
||||
struct iwl_tt_trans *transaction;
|
||||
|
||||
IWL_DEBUG_TEMP(priv, "Initialize Thermal Throttling\n");
|
||||
|
||||
memset(tt, 0, sizeof(struct iwl_tt_mgmt));
|
||||
|
||||
tt->state = IWL_TI_0;
|
||||
init_timer(&priv->thermal_throttle.ct_kill_exit_tm);
|
||||
priv->thermal_throttle.ct_kill_exit_tm.data = (unsigned long)priv;
|
||||
priv->thermal_throttle.ct_kill_exit_tm.function =
|
||||
iwl_tt_check_exit_ct_kill;
|
||||
init_timer(&priv->thermal_throttle.ct_kill_waiting_tm);
|
||||
priv->thermal_throttle.ct_kill_waiting_tm.data =
|
||||
(unsigned long)priv;
|
||||
priv->thermal_throttle.ct_kill_waiting_tm.function =
|
||||
iwl_tt_ready_for_ct_kill;
|
||||
/* setup deferred ct kill work */
|
||||
INIT_WORK(&priv->tt_work, iwl_bg_tt_work);
|
||||
INIT_WORK(&priv->ct_enter, iwl_bg_ct_enter);
|
||||
INIT_WORK(&priv->ct_exit, iwl_bg_ct_exit);
|
||||
|
||||
if (priv->lib->adv_thermal_throttle) {
|
||||
IWL_DEBUG_TEMP(priv, "Advanced Thermal Throttling\n");
|
||||
tt->restriction = kcalloc(IWL_TI_STATE_MAX,
|
||||
sizeof(struct iwl_tt_restriction),
|
||||
GFP_KERNEL);
|
||||
tt->transaction = kcalloc(IWL_TI_STATE_MAX *
|
||||
(IWL_TI_STATE_MAX - 1),
|
||||
sizeof(struct iwl_tt_trans),
|
||||
GFP_KERNEL);
|
||||
if (!tt->restriction || !tt->transaction) {
|
||||
IWL_ERR(priv, "Fallback to Legacy Throttling\n");
|
||||
priv->thermal_throttle.advanced_tt = false;
|
||||
kfree(tt->restriction);
|
||||
tt->restriction = NULL;
|
||||
kfree(tt->transaction);
|
||||
tt->transaction = NULL;
|
||||
} else {
|
||||
transaction = tt->transaction +
|
||||
(IWL_TI_0 * (IWL_TI_STATE_MAX - 1));
|
||||
memcpy(transaction, &tt_range_0[0], size);
|
||||
transaction = tt->transaction +
|
||||
(IWL_TI_1 * (IWL_TI_STATE_MAX - 1));
|
||||
memcpy(transaction, &tt_range_1[0], size);
|
||||
transaction = tt->transaction +
|
||||
(IWL_TI_2 * (IWL_TI_STATE_MAX - 1));
|
||||
memcpy(transaction, &tt_range_2[0], size);
|
||||
transaction = tt->transaction +
|
||||
(IWL_TI_CT_KILL * (IWL_TI_STATE_MAX - 1));
|
||||
memcpy(transaction, &tt_range_3[0], size);
|
||||
size = sizeof(struct iwl_tt_restriction) *
|
||||
IWL_TI_STATE_MAX;
|
||||
memcpy(tt->restriction,
|
||||
&restriction_range[0], size);
|
||||
priv->thermal_throttle.advanced_tt = true;
|
||||
}
|
||||
} else {
|
||||
IWL_DEBUG_TEMP(priv, "Legacy Thermal Throttling\n");
|
||||
priv->thermal_throttle.advanced_tt = false;
|
||||
}
|
||||
}
|
||||
|
||||
/* cleanup thermal throttling management related memory and timer */
|
||||
void iwl_tt_exit(struct iwl_priv *priv)
|
||||
{
|
||||
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
|
||||
|
||||
/* stop ct_kill_exit_tm timer if activated */
|
||||
del_timer_sync(&priv->thermal_throttle.ct_kill_exit_tm);
|
||||
/* stop ct_kill_waiting_tm timer if activated */
|
||||
del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm);
|
||||
cancel_work_sync(&priv->tt_work);
|
||||
cancel_work_sync(&priv->ct_enter);
|
||||
cancel_work_sync(&priv->ct_exit);
|
||||
|
||||
if (priv->thermal_throttle.advanced_tt) {
|
||||
/* free advance thermal throttling memory */
|
||||
kfree(tt->restriction);
|
||||
tt->restriction = NULL;
|
||||
kfree(tt->transaction);
|
||||
tt->transaction = NULL;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue