qcacld-3.0: Add INI to enable/disable BTM offload for HS-2.0

Some solutions may not have HS-2.0 certification and there is
no need to forward the BTM frame to wpa_supplicant in such
solutions. Let firmware handle the frame in such cases by
enabling btm_offload so that it doesn't wakeup the host.
Firmware may roam to another AP upon BTM reception.

To enable/disable BTM offload add hs20_btm_offload_disable INI.
If this INI is enable BTM offload will be disable and if INI
is disable BTM offload will be enabled.

Change-Id: Id6e18404cc3a12a23b213c0f858c943715285932
CRs-Fixed: 3718776

components/mlme/core/src/wlan_mlme_main.c

@@ -3261,6 +3261,8 @@ static void mlme_init_lfr_cfg(struct wlan_objmgr_psoc *psoc,
 	mlme_init_subnet_detection(psoc, lfr);
 	lfr->rso_user_config.cat_rssi_offset = DEFAULT_RSSI_DB_GAP;
 	mlme_init_bmiss_timeout(psoc, lfr);
+	lfr->hs20_btm_offload_disable = cfg_get(psoc,
+						CFG_HS_20_BTM_OFFLOAD_DISABLE);
 }
 
 static void mlme_init_power_cfg(struct wlan_objmgr_psoc *psoc,

components/mlme/dispatcher/inc/cfg_mlme_lfr.h

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2012-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -3297,6 +3297,31 @@
 		CFG_VALUE_OR_DEFAULT, \
 		"Roam information cache number in wlan driver")
 
+/*
+ * <ini>
+ * hs20_btm_offload_disable - To enable/disable BTM offload
+ * @Min: 0
+ * @Max: 1
+ * @Default: 1
+ *
+ * This ini is used to enable/disable BTM offload for Hotspot 2.0.
+ * Some solutions may not have Hotspot 2.0 certification
+ * and there is no need to forward the BTM frame to wpa_supplicant,
+ * in such solutions Let firmware handle the frame, in such cases by
+ * enabling btm_offload so that it doesn't wakeup the host.
+ * Firmware may roam to another AP upon BTM reception.
+ *
+ * Related: LFR
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_HS_20_BTM_OFFLOAD_DISABLE CFG_INI_BOOL( \
+		"hs20_btm_offload_disable", \
+		true, \
+		"To Enable/disable BTM offload for hotspot 2.0")
+
 #define CFG_LFR_ALL \
 	CFG(CFG_LFR_MAWC_ROAM_ENABLED) \
 	CFG(CFG_LFR_MAWC_ROAM_TRAFFIC_THRESHOLD) \
@@ -3398,6 +3423,7 @@
 	ROAM_REASON_VSIE_ALL \
 	CFG(CFG_LFR_BEACONLOSS_TIMEOUT_ON_WAKEUP) \
 	CFG(CFG_LFR_BEACONLOSS_TIMEOUT_ON_SLEEP) \
-	CFG(CFG_LFR3_ROAM_INFO_STATS_NUM)
+	CFG(CFG_LFR3_ROAM_INFO_STATS_NUM) \
+	CFG(CFG_HS_20_BTM_OFFLOAD_DISABLE)
 
 #endif /* CFG_MLME_LFR_H__ */

components/mlme/dispatcher/inc/wlan_mlme_api.h

@@ -4956,4 +4956,15 @@ wlan_mlme_get_ap_oper_ch_width(struct wlan_objmgr_vdev *vdev);
 QDF_STATUS
 wlan_mlme_send_csa_event_status_ind(struct wlan_objmgr_vdev *vdev,
 				    uint8_t csa_status);
+
+/**
+ * wlan_mlme_is_hs_20_btm_offload_disabled() - Get BTM offload is enable/disable
+ * @psoc: pointer to psoc object
+ * @val:  Pointer to the value which will be filled for the caller
+ *
+ * Return: QDF Status
+ */
+QDF_STATUS
+wlan_mlme_is_hs_20_btm_offload_disabled(struct wlan_objmgr_psoc *psoc,
+					bool *val);
 #endif /* _WLAN_MLME_API_H_ */

components/mlme/dispatcher/inc/wlan_mlme_public_struct.h

@@ -2089,6 +2089,8 @@ struct fw_scan_channels {
  * only on prior discovery of any 6 GHz support in the environment.
  * @disconnect_on_nud_roam_invoke_fail: indicate whether disconnect ap when
  * roam invoke fail on nud.
+ * @hs20_btm_offload_disable: indicate whether btm offload is enable/disable
+ * for Hotspot 2.0
  */
 struct wlan_mlme_lfr_cfg {
 	bool mawc_roam_enabled;
@@ -2217,6 +2219,7 @@ struct wlan_mlme_lfr_cfg {
 	uint8_t exclude_rm_partial_scan_freq;
 	uint8_t roam_full_scan_6ghz_on_disc;
 	bool disconnect_on_nud_roam_invoke_fail;
+	bool hs20_btm_offload_disable;
 };
 
 /**

components/mlme/dispatcher/src/wlan_mlme_api.c

@@ -8346,3 +8346,21 @@ rel_pdev:
 	return status;
 }
 #endif
+
+QDF_STATUS
+wlan_mlme_is_hs_20_btm_offload_disabled(struct wlan_objmgr_psoc *psoc,
+					bool *val)
+{
+	struct wlan_mlme_psoc_ext_obj *mlme_obj;
+
+	mlme_obj = mlme_get_psoc_ext_obj(psoc);
+	if (!mlme_obj) {
+		*val = cfg_default(CFG_HS_20_BTM_OFFLOAD_DISABLE);
+		return QDF_STATUS_E_INVAL;
+	}
+
+	*val = mlme_obj->cfg.lfr.hs20_btm_offload_disable;
+
+	return QDF_STATUS_SUCCESS;
+}
+

components/umac/mlme/connection_mgr/core/src/wlan_cm_roam_offload.c

@@ -2981,7 +2981,7 @@ cm_update_btm_offload_config(struct wlan_objmgr_psoc *psoc,
 {
 	struct wlan_mlme_psoc_ext_obj *mlme_obj;
 	struct wlan_mlme_btm *btm_cfg;
-	bool is_hs_20_ap;
+	bool is_hs_20_ap, is_hs_20_btm_offload_disabled;
 	struct cm_roam_values_copy temp;
 	uint8_t vdev_id;
 	bool abridge_flag;
@@ -3006,12 +3006,15 @@ cm_update_btm_offload_config(struct wlan_objmgr_psoc *psoc,
 	vdev_id = wlan_vdev_get_id(vdev);
 	wlan_cm_roam_cfg_get_value(psoc, vdev_id, HS_20_AP, &temp);
 	is_hs_20_ap = temp.bool_value;
+	wlan_mlme_is_hs_20_btm_offload_disabled(psoc,
+						&is_hs_20_btm_offload_disabled);
 
 	/*
 	 * For RSO Stop/Passpoint R2 cert test case 5.11(when STA is connected
 	 * to Hotspot-2.0 AP), disable BTM offload to firmware
 	 */
-	if (command == ROAM_SCAN_OFFLOAD_STOP || is_hs_20_ap) {
+	if (command == ROAM_SCAN_OFFLOAD_STOP ||
+	    (is_hs_20_ap && is_hs_20_btm_offload_disabled)) {
 		mlme_debug("RSO cmd: %d is_hs_20_ap:%d", command,
 			   is_hs_20_ap);
 		*btm_offload_config = 0;