drivers: wifi: Option for Qos NULL frame based power save

[SHEL-2947] QoS null frame based legacy power save support.

Signed-off-by: Ajay Parida <[email protected]>

drivers/wifi/nrf700x/Kconfig

@@ -403,3 +403,15 @@ config NRF_WIFI_AP_DEAD_DETECT_TIMEOUT
 	help
 		The number of seconds after which AP is declared dead if no beacons
 		are received from the AP. Used to detect AP silently going down e.g., power off.
+
+choice NRF_WIFI_PS_DATA_RETRIEVAL_MODE
+	prompt "Power save data retrieval mode"
+	default NRF_WIFI_PS_POLL_BASED_RETRIEVAL
+	help
+          Select the mechanism to retrieve buffered data from AP.
+config NRF_WIFI_PS_POLL_BASED_RETRIEVAL
+	bool "PS-Poll based mechanism to retrieve buffered data from AP"
+config NRF_WIFI_QOS_NULL_BASED_RETRIEVAL
+	bool "QoS null frame based mechanism to retrieve buffered data from AP"
+
+endchoice

drivers/wifi/nrf700x/osal/fw_if/umac_if/inc/fw/host_rpu_sys_if.h

@@ -785,12 +785,12 @@ enum op_band {
  *  from the AP in power save mode.
  */
 enum data_retrieve_frame {
-    /** Retrieves data from the AP using a PS-Poll frame */
-    PS_POLL_FRAME,
-    /** Retrieves data from the AP using a QoS Null frame */
-    QOS_NULL_FRAME,
-    /** For future implementation. The RPU will decide which frame to use */
-    AUTOMATIC
+	/** Retrieves data from the AP using a PS-Poll frame */
+	PS_POLL_FRAME,
+	/** Retrieves data from the AP using a QoS Null frame */
+	QOS_NULL_FRAME,
+	/** For future implementation. The RPU will decide which frame to use */
+	AUTOMATIC
 };
 
 #define TWT_EXTEND_SP_EDCA  0x1
@@ -839,7 +839,7 @@ struct nrf_wifi_cmd_sys_init {
 	 */
 	unsigned int discon_timeout;
 	/** RPU uses QoS null frame or PS-Poll frame to retrieve buffered frames
-         *  from the AP in power save @ref data_retrieve_frame.
+	 * from the AP in power save @ref data_retrieve_frame.
 	 */
 	unsigned char ps_data_retrieval_mode;
 } __NRF_WIFI_PKD;

drivers/wifi/nrf700x/osal/fw_if/umac_if/src/cmd.c

@@ -193,7 +193,13 @@ enum nrf_wifi_status umac_cmd_init(struct nrf_wifi_fmac_dev_ctx *fmac_dev_ctx,
 		umac_cmd_data->disable_beamforming = 1;
 	}
 
-	 status = nrf_wifi_hal_ctrl_cmd_send(fmac_dev_ctx->hal_dev_ctx,
+#if defined(CONFIG_NRF_WIFI_QOS_NULL_BASED_RETRIEVAL)
+	umac_cmd_data->ps_data_retrieval_mode = QOS_NULL_FRAME;
+#else
+	umac_cmd_data->ps_data_retrieval_mode = PS_POLL_FRAME;
+#endif  /* CONFIG_NRF_WIFI_QOS_NULL_BASED_RETRIEVAL */
+
+	status = nrf_wifi_hal_ctrl_cmd_send(fmac_dev_ctx->hal_dev_ctx,
 					    umac_cmd,
 					    (sizeof(*umac_cmd) + len));