iwlwifi: support multiple d0i3 modes

Allow configuring additional d0i3 mode, in which the
fw will be configured to enter d0i3 only on suspend
(while keeping the wake_lock accounting as usual)

The d0i3 mode to use will be determined by the
underlying trans layer.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 028408a..10ae9d7 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -551,6 +551,21 @@ enum iwl_trans_state {
        IWL_TRANS_FW_ALIVE      = 1,
 };
 
+/**
+ * enum iwl_d0i3_mode - d0i3 mode
+ *
+ * @IWL_D0I3_MODE_OFF - d0i3 is disabled
+ * @IWL_D0I3_MODE_ON_IDLE - enter d0i3 when device is idle
+ *     (e.g. no active references)
+ * @IWL_D0I3_MODE_ON_SUSPEND - enter d0i3 only on suspend
+ *     (in case of 'any' trigger)
+ */
+enum iwl_d0i3_mode {
+       IWL_D0I3_MODE_OFF = 0,
+       IWL_D0I3_MODE_ON_IDLE,
+       IWL_D0I3_MODE_ON_SUSPEND,
+};
+
 /**
  * struct iwl_trans - transport common data
  *
@@ -612,6 +627,8 @@ struct iwl_trans {
        const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_MAX];
        u8 dbg_dest_reg_num;
 
+       enum iwl_d0i3_mode d0i3_mode;
+
        /* pointer to trans specific struct */
        /*Ensure that this pointer will always be aligned to sizeof pointer */
        char trans_specific[0] __aligned(sizeof(void *));

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index ff1a409..e608dc4 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -850,6 +850,7 @@ iwl_mvm_sta_from_staid_protected(struct iwl_mvm *mvm, u8 sta_id)
 static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm)
 {
        return mvm->trans->cfg->d0i3 &&
+              mvm->trans->d0i3_mode != IWL_D0I3_MODE_OFF &&
               (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_D0I3_SUPPORT);
 }