diff options
author | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2009-07-24 14:13:02 -0400 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-07-27 15:24:20 -0400 |
commit | 39b73fb15e4704fd4d1e33688135810637f5f3fb (patch) | |
tree | d0efed58f5a52ccdc19d8f133aa64af7a0691e70 /drivers/net/wireless/iwlwifi/iwl-core.c | |
parent | 672639de13c4db92ed6a47e68043a4317e219902 (diff) |
iwlwifi: Thermal Throttling Management - Part 1
Part 1 of Thermal Throttling Management -
Thermal Throttling feature is used to put NIC into low power state when
driver detect the Radio temperature reach pre-defined threshold
Two Thermal Throttling Management Methods; this patch introduce the
Legacy Thermal Management:
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
Once get into CT_KILL state, uCode go into sleep, driver will stop all
the active queues, then move to IWL_TI_CT_KILL state; also set up 5
seconds timer to toggle CSR flag, uCode wake up upon CSR flag change,
then measure the temperature.
If temperature is above CT_KILL exit threshold, uCode go backto sleep;
if temperature is below CT_KILL exit threshold, uCode send Card State
Notification response with appropriate CT_KILL status flag, and uCode
remain awake, Driver receive Card State Notification Response and update
the card temperature to the CT_KILL exit threshold.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-core.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 5ef3c37b581..d8aeb24db90 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c | |||
@@ -2232,6 +2232,7 @@ void iwl_rf_kill_ct_config(struct iwl_priv *priv) | |||
2232 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | 2232 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
2233 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); | 2233 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
2234 | spin_unlock_irqrestore(&priv->lock, flags); | 2234 | spin_unlock_irqrestore(&priv->lock, flags); |
2235 | priv->power_data.ct_kill_toggle = false; | ||
2235 | 2236 | ||
2236 | switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) { | 2237 | switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) { |
2237 | case CSR_HW_REV_TYPE_1000: | 2238 | case CSR_HW_REV_TYPE_1000: |