qcacld-3.0: Add support for band specific preference

Add support for 5Ghz network RSSI boost/penalty preference
based on ini values.

Change-Id: Ia3ae5dcc35b9a85fde5a609f8f27ff8b4bc35cec
CRs-fixed: 1085554

5 files changed, 298 insertions, 0 deletions

diff --git a/core/hdd/inc/wlan_hdd_cfg.h b/core/hdd/inc/wlan_hdd_cfg.h
index 0c46c03b9add..d71a652390f0 100644
--- a/core/hdd/inc/wlan_hdd_cfg.h
+++ b/core/hdd/inc/wlan_hdd_cfg.h
@@ -8790,6 +8790,162 @@ enum dot11p_mode {
 #define CFG_RX_WAKELOCK_TIMEOUT_MIN      (0)
 #define CFG_RX_WAKELOCK_TIMEOUT_MAX      (100)
 
+/*
+ * <ini>
+ * enable_5g_band_pref - Enable preference for 5G from INI.
+ * @Min: 0
+ * @Max: 1
+ * @Default: 0
+ * This ini is used to enable 5G preference parameters.
+ *
+ * Related: 5g_rssi_boost_threshold, 5g_rssi_boost_factor, 5g_max_rssi_boost
+ * 5g_rssi_penalize_threshold, 5g_rssi_penalize_factor, 5g_max_rssi_penalize
+ *
+ * Supported Feature: 5G band preference
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+
+#define CFG_ENABLE_5G_BAND_PREF_NAME             "enable_5g_band_pref"
+#define CFG_ENABLE_5G_BAND_PREF_MIN              (0)
+#define CFG_ENABLE_5G_BAND_PREF_MAX              (1)
+#define CFG_ENABLE_5G_BAND_PREF_DEFAULT          (0)
+
+/*
+ * <ini>
+ * 5g_rssi_boost_threshold - A_band_boost_threshold above which 5 GHz is favored.
+ * @Min: -55
+ * @Max: -70
+ * @Default: -60
+ * This ini is used to set threshold for 5GHz band preference.
+ *
+ * Related: 5g_rssi_boost_factor, 5g_max_rssi_boost
+ * 5g_rssi_penalize_threshold, 5g_rssi_penalize_factor, 5g_max_rssi_penalize
+ *
+ * Supported Feature: 5G band preference
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_5G_RSSI_BOOST_THRESHOLD_NAME         "5g_rssi_boost_threshold"
+#define CFG_5G_RSSI_BOOST_THRESHOLD_MIN          (-55)
+#define CFG_5G_RSSI_BOOST_THRESHOLD_MAX          (-70)
+#define CFG_5G_RSSI_BOOST_THRESHOLD_DEFAULT      (-60)
+
+/*
+ * <ini>
+ * 5g_rssi_boost_factor - Factor by which 5GHz RSSI is boosted.
+ * @Min: 0
+ * @Max: 2
+ * @Default: 1
+ * This ini is used to set the 5Ghz boost factor.
+ *
+ * Related: 5g_rssi_boost_threshold, 5g_max_rssi_boost
+ * 5g_rssi_penalize_threshold, 5g_rssi_penalize_factor, 5g_max_rssi_penalize
+ *
+ * Supported Feature: 5G band preference
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_5G_RSSI_BOOST_FACTOR_NAME            "5g_rssi_boost_factor"
+#define CFG_5G_RSSI_BOOST_FACTOR_MIN             (0)
+#define CFG_5G_RSSI_BOOST_FACTOR_MAX             (2)
+#define CFG_5G_RSSI_BOOST_FACTOR_DEFAULT         (1)
+
+/*
+ * <ini>
+ * 5g_max_rssi_boost - Maximum boost that can be applied to 5GHz RSSI.
+ * @Min: 0
+ * @Max: 20
+ * @Default: 10
+ * This ini is used to set maximum boost which can be given to a 5Ghz network.
+ *
+ * Related: 5g_rssi_boost_threshold, 5g_rssi_boost_factor
+ * 5g_rssi_penalize_threshold, 5g_rssi_penalize_factor, 5g_max_rssi_penalize
+ *
+ * Supported Feature: 5G band preference
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_5G_MAX_RSSI_BOOST_NAME               "5g_max_rssi_boost"
+#define CFG_5G_MAX_RSSI_BOOST_MIN                (0)
+#define CFG_5G_MAX_RSSI_BOOST_MAX                (20)
+#define CFG_5G_MAX_RSSI_BOOST_DEFAULT            (10)
+
+/*
+ * <ini>
+ * 5g_rssi_penalize_threshold - A_band_penalize_threshold above which
+ * 5 GHz is not favored.
+ * @Min: -65
+ * @Max: -80
+ * @Default: -70
+ * This ini is used to set threshold for 5GHz band preference.
+ *
+ * Related: 5g_rssi_penalize_factor, 5g_max_rssi_penalize
+ * 5g_rssi_boost_threshold, 5g_rssi_boost_factor, 5g_max_rssi_boost
+ *
+ * Supported Feature: 5G band preference
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_5G_RSSI_PENALIZE_THRESHOLD_NAME      "5g_rssi_penalize_threshold"
+#define CFG_5G_RSSI_PENALIZE_THRESHOLD_MIN       (-65)
+#define CFG_5G_RSSI_PENALIZE_THRESHOLD_MAX       (-80)
+#define CFG_5G_RSSI_PENALIZE_THRESHOLD_DEFAULT   (-70)
+
+/*
+ * <ini>
+ * 5g_rssi_penalize_factor - Factor by which 5GHz RSSI is penalizeed.
+ * @Min: 0
+ * @Max: 2
+ * @Default: 1
+ * This ini is used to set the 5Ghz penalize factor.
+ *
+ * Related: 5g_rssi_penalize_threshold, 5g_max_rssi_penalize
+ * 5g_rssi_boost_threshold, 5g_rssi_boost_factor, 5g_max_rssi_boost
+ *
+ * Supported Feature: 5G band preference
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_5G_RSSI_PENALIZE_FACTOR_NAME         "5g_rssi_penalize_factor"
+#define CFG_5G_RSSI_PENALIZE_FACTOR_MIN          (0)
+#define CFG_5G_RSSI_PENALIZE_FACTOR_MAX          (2)
+#define CFG_5G_RSSI_PENALIZE_FACTOR_DEFAULT      (1)
+
+/*
+ * <ini>
+ * 5g_max_rssi_penalize - Maximum penalty that can be applied to 5GHz RSSI.
+ * @Min: 0
+ * @Max: 20
+ * @Default: 10
+ * This ini is used to set maximum penalty which can be given to a 5Ghz network.
+ *
+ * Related: 5g_rssi_penalize_threshold, 5g_rssi_penalize_factor
+ * 5g_rssi_boost_threshold, 5g_rssi_boost_factor, 5g_max_rssi_boost
+ *
+ * Supported Feature: 5G band preference
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_5G_MAX_RSSI_PENALIZE_NAME            "5g_max_rssi_penalize"
+#define CFG_5G_MAX_RSSI_PENALIZE_MIN             (0)
+#define CFG_5G_MAX_RSSI_PENALIZE_MAX             (20)
+#define CFG_5G_MAX_RSSI_PENALIZE_DEFAULT         (10)
+
 #ifdef WLAN_FEATURE_UDP_RESPONSE_OFFLOAD
 /*
  * Enable/Disable  UDP response offload feature
@@ -10418,6 +10574,16 @@ struct hdd_config {
 	bool enable_bcast_probe_rsp;
 	bool qcn_ie_support;
 	uint8_t fils_max_chan_guard_time;
+	/* 5G preference parameters for boosting RSSI */
+	bool                        enable_5g_band_pref;
+	int8_t                      rssi_boost_threshold_5g;
+	uint8_t                     rssi_boost_factor_5g;
+	uint8_t                     max_rssi_boost_5g;
+	/* 5G preference parameters for dropping RSSI*/
+	int8_t                      rssi_penalize_threshold_5g;
+	uint8_t                     rssi_penalize_factor_5g;
+	uint8_t                     max_rssi_penalize_5g;
+
 };
 
 #define VAR_OFFSET(_Struct, _Var) (offsetof(_Struct, _Var))
diff --git a/core/hdd/src/wlan_hdd_cfg.c b/core/hdd/src/wlan_hdd_cfg.c
index 6b64466740f4..197ee472beaa 100644
--- a/core/hdd/src/wlan_hdd_cfg.c
+++ b/core/hdd/src/wlan_hdd_cfg.c
@@ -4319,6 +4319,56 @@ REG_TABLE_ENTRY g_registry_table[] = {
 		CFG_FILS_MAX_CHAN_GUARD_TIME_DEFAULT,
 		CFG_FILS_MAX_CHAN_GUARD_TIME_MIN,
 		CFG_FILS_MAX_CHAN_GUARD_TIME_MAX),
+
+	REG_VARIABLE(CFG_ENABLE_5G_BAND_PREF_NAME, WLAN_PARAM_Integer,
+		struct hdd_config, enable_5g_band_pref,
+		VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		CFG_ENABLE_5G_BAND_PREF_DEFAULT,
+		CFG_ENABLE_5G_BAND_PREF_MIN,
+		CFG_ENABLE_5G_BAND_PREF_MAX),
+
+	REG_VARIABLE(CFG_5G_RSSI_BOOST_THRESHOLD_NAME, WLAN_PARAM_Integer,
+		struct hdd_config, rssi_boost_threshold_5g,
+		VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		CFG_5G_RSSI_BOOST_THRESHOLD_DEFAULT,
+		CFG_5G_RSSI_BOOST_THRESHOLD_MIN,
+		CFG_5G_RSSI_BOOST_THRESHOLD_MAX),
+
+	REG_VARIABLE(CFG_5G_RSSI_BOOST_FACTOR_NAME, WLAN_PARAM_Integer,
+		struct hdd_config, rssi_boost_factor_5g,
+		VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		CFG_5G_RSSI_BOOST_FACTOR_DEFAULT,
+		CFG_5G_RSSI_BOOST_FACTOR_MIN,
+		CFG_5G_RSSI_BOOST_FACTOR_MAX),
+
+	REG_VARIABLE(CFG_5G_MAX_RSSI_BOOST_NAME, WLAN_PARAM_Integer,
+		struct hdd_config, max_rssi_boost_5g,
+		VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		CFG_5G_MAX_RSSI_BOOST_DEFAULT,
+		CFG_5G_MAX_RSSI_BOOST_MIN,
+		CFG_5G_MAX_RSSI_BOOST_MAX),
+
+	REG_VARIABLE(CFG_5G_RSSI_PENALIZE_THRESHOLD_NAME, WLAN_PARAM_Integer,
+		struct hdd_config, rssi_penalize_threshold_5g,
+		VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		CFG_5G_RSSI_PENALIZE_THRESHOLD_DEFAULT,
+		CFG_5G_RSSI_PENALIZE_THRESHOLD_MIN,
+		CFG_5G_RSSI_PENALIZE_THRESHOLD_MAX),
+
+	REG_VARIABLE(CFG_5G_RSSI_PENALIZE_FACTOR_NAME, WLAN_PARAM_Integer,
+		struct hdd_config, rssi_penalize_factor_5g,
+		VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		CFG_5G_RSSI_PENALIZE_FACTOR_DEFAULT,
+		CFG_5G_RSSI_PENALIZE_FACTOR_MIN,
+		CFG_5G_RSSI_PENALIZE_FACTOR_MAX),
+
+	REG_VARIABLE(CFG_5G_MAX_RSSI_PENALIZE_NAME, WLAN_PARAM_Integer,
+		struct hdd_config, max_rssi_penalize_5g,
+		VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		CFG_5G_MAX_RSSI_PENALIZE_DEFAULT,
+		CFG_5G_MAX_RSSI_PENALIZE_MIN,
+		CFG_5G_MAX_RSSI_PENALIZE_MAX),
+
 };
 
 /**
diff --git a/core/hdd/src/wlan_hdd_main.c b/core/hdd/src/wlan_hdd_main.c
index 5dd8c4d88520..5400bbbb20c2 100644
--- a/core/hdd/src/wlan_hdd_main.c
+++ b/core/hdd/src/wlan_hdd_main.c
@@ -7886,6 +7886,7 @@ static int hdd_features_init(hdd_context_t *hdd_ctx, hdd_adapter_t *adapter)
 {
 	tSirTxPowerLimit hddtxlimit;
 	QDF_STATUS status;
+	struct sme_5g_band_pref_params band_pref_params;
 	int ret;
 
 	ENTER();
@@ -7956,6 +7957,22 @@ static int hdd_features_init(hdd_context_t *hdd_ctx, hdd_adapter_t *adapter)
 		}
 	}
 
+	if (hdd_ctx->config->enable_5g_band_pref) {
+		band_pref_params.rssi_boost_threshold_5g =
+				hdd_ctx->config->rssi_boost_threshold_5g;
+		band_pref_params.rssi_boost_factor_5g =
+				hdd_ctx->config->rssi_boost_factor_5g;
+		band_pref_params.max_rssi_boost_5g =
+				hdd_ctx->config->max_rssi_boost_5g;
+		band_pref_params.rssi_penalize_threshold_5g =
+				hdd_ctx->config->rssi_penalize_threshold_5g;
+		band_pref_params.rssi_penalize_factor_5g =
+				hdd_ctx->config->rssi_penalize_factor_5g;
+		band_pref_params.max_rssi_penalize_5g =
+				hdd_ctx->config->max_rssi_penalize_5g;
+		sme_set_5g_band_pref(hdd_ctx->hHal, &band_pref_params);
+	}
+
 	/* register P2P Listen Offload event callback */
 	if (wma_is_p2p_lo_capable())
 		sme_register_p2p_lo_event(hdd_ctx->hHal, hdd_ctx,
diff --git a/core/sme/inc/sme_api.h b/core/sme/inc/sme_api.h
index 0fa9c7ea6b1b..9799dda80c2f 100644
--- a/core/sme/inc/sme_api.h
+++ b/core/sme/inc/sme_api.h
@@ -202,6 +202,24 @@ struct sme_oem_capability {
 	uint32_t reserved2;
 };
 
+/**
+ * struct sme_5g_pref_params : 5G preference params to be read from ini
+ * @rssi_boost_threshold_5g: RSSI threshold above which 5 GHz is favored
+ * @rssi_boost_factor_5g: Factor by which 5GHz RSSI is boosted
+ * @max_rssi_boost_5g: Maximum boost that can be applied to 5GHz RSSI
+ * @rssi_penalize_threshold_5g: RSSI threshold below which 5G is not favored
+ * @rssi_penalize_factor_5g: Factor by which 5GHz RSSI is penalized
+ * @max_rssi_penalize_5g: Maximum penalty that can be applied to 5G RSSI
+ */
+struct sme_5g_band_pref_params {
+	int8_t      rssi_boost_threshold_5g;
+	uint8_t     rssi_boost_factor_5g;
+	uint8_t     max_rssi_boost_5g;
+	int8_t      rssi_penalize_threshold_5g;
+	uint8_t     rssi_penalize_factor_5g;
+	uint8_t     max_rssi_penalize_5g;
+};
+
 /*-------------------------------------------------------------------------
   Function declarations and documenation
   ------------------------------------------------------------------------*/
@@ -1477,4 +1495,7 @@ QDF_STATUS sme_get_beacon_frm(tHalHandle hal, tCsrRoamProfile *profile,
 QDF_STATUS sme_rso_cmd_status_cb(tHalHandle hal,
 		void (*cb)(void *, struct rso_cmd_status *));
 
+void sme_set_5g_band_pref(tHalHandle hal_handle,
+			  struct sme_5g_band_pref_params *pref_params);
+
 #endif /* #if !defined( __SME_API_H ) */
diff --git a/core/sme/src/common/sme_api.c b/core/sme/src/common/sme_api.c
index ab35e40036bc..527090a20da8 100644
--- a/core/sme/src/common/sme_api.c
+++ b/core/sme/src/common/sme_api.c
@@ -17153,6 +17153,50 @@ bool sme_roam_is_ese_assoc(tCsrRoamInfo *roam_info)
 {
 	return roam_info->isESEAssoc;
 }
+
+/**
+ * sme_set_band_specific_pref(): If 5G preference is enabled,set boost/drop
+ * params from ini.
+ * @hal_handle: Handle returned by mac_open
+ * @5g_pref_params: pref params from ini.
+ *
+ * Returns: None
+ */
+void sme_set_5g_band_pref(tHalHandle hal_handle,
+			  struct sme_5g_band_pref_params *pref_params)
+{
+
+	tpAniSirGlobal mac_ctx = PMAC_STRUCT(hal_handle);
+	struct roam_ext_params *roam_params;
+	QDF_STATUS status    = QDF_STATUS_SUCCESS;
+
+	if (!pref_params) {
+		QDF_TRACE(QDF_MODULE_ID_SME, QDF_TRACE_LEVEL_ERROR,
+			  "Invalid 5G pref params!");
+		return;
+	}
+	status = sme_acquire_global_lock(&mac_ctx->sme);
+	if (QDF_STATUS_SUCCESS == status) {
+		roam_params = &mac_ctx->roam.configParam.roam_params;
+		roam_params->raise_rssi_thresh_5g =
+				pref_params->rssi_boost_threshold_5g;
+		roam_params->raise_factor_5g =
+				pref_params->rssi_boost_factor_5g;
+		roam_params->max_raise_rssi_5g =
+				pref_params->max_rssi_boost_5g;
+		roam_params->drop_rssi_thresh_5g =
+				pref_params->rssi_penalize_threshold_5g;
+		roam_params->drop_factor_5g =
+				pref_params->rssi_penalize_factor_5g;
+		roam_params->max_drop_rssi_5g =
+				pref_params->max_rssi_penalize_5g;
+
+		sme_release_global_lock(&mac_ctx->sme);
+	} else
+		QDF_TRACE(QDF_MODULE_ID_SME, QDF_TRACE_LEVEL_ERROR,
+			  "Unable to acquire global sme lock");
+}
+
 #endif
 
 bool sme_neighbor_roam_is11r_assoc(tHalHandle hal_ctx,