qcacld-3.0: Add ini support for extscan

qcacld-2.0 to qcacld-3.0 propagation.
Added ini parameter for extscan so that scan can be aborted
if extscan ini is not enabled.

Change-Id: I7bfcd88901512de6b70af94d1ebd76894bb14755
CRs-Fixed: 927236
(cherry picked from commit 5af7ebadac8ea8ccd11af6c03d5d3a4cf209e85b)

core/hdd/inc/wlan_hdd_cfg.h

@@ -2921,6 +2921,17 @@ enum dot11p_mode {
 #define CFG_DOT11P_MODE_MAX              (WLAN_HDD_11P_CONCURRENT)
 
 #ifdef FEATURE_WLAN_EXTSCAN
+
+/*
+ * This ini is added to control the enabling of extscan feature outside of code
+ * To enable , gExtScanEnable=1 need to be declared in ini file.
+ * Otherwise, Extscan feature will remain disabled.
+ */
+#define CFG_EXTSCAN_ALLOWED_NAME                   "gExtScanEnable"
+#define CFG_EXTSCAN_ALLOWED_MIN                    (0)
+#define CFG_EXTSCAN_ALLOWED_MAX                    (1)
+#define CFG_EXTSCAN_ALLOWED_DEF                    (0)
+
 #define CFG_EXTSCAN_PASSIVE_MAX_CHANNEL_TIME_NAME      "gExtScanPassiveMaxChannelTime"
 #define CFG_EXTSCAN_PASSIVE_MAX_CHANNEL_TIME_MIN       (0)
 #define CFG_EXTSCAN_PASSIVE_MAX_CHANNEL_TIME_MAX       (500)
@@ -4092,6 +4103,7 @@ struct hdd_config {
 	uint8_t rx_mode;
 	uint8_t cpu_map_list[CFG_RPS_RX_QUEUE_CPU_MAP_LIST_LEN];
 #ifdef FEATURE_WLAN_EXTSCAN
+	bool     extscan_enabled;
 	uint32_t extscan_passive_max_chn_time;
 	uint32_t extscan_passive_min_chn_time;
 	uint32_t extscan_active_max_chn_time;

core/hdd/src/wlan_hdd_cfg.c

@@ -3557,6 +3557,14 @@ REG_TABLE_ENTRY g_registry_table[] = {
 		     CFG_DOT11P_MODE_MAX),
 
 #ifdef FEATURE_WLAN_EXTSCAN
+	REG_VARIABLE(CFG_EXTSCAN_ALLOWED_NAME, WLAN_PARAM_Integer,
+		     struct hdd_config, extscan_enabled,
+		     VAR_FLAGS_OPTIONAL |
+		     VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		     CFG_EXTSCAN_ALLOWED_DEF,
+		     CFG_EXTSCAN_ALLOWED_MIN,
+		     CFG_EXTSCAN_ALLOWED_MAX),
+
 	REG_VARIABLE(CFG_EXTSCAN_PASSIVE_MAX_CHANNEL_TIME_NAME,
 		     WLAN_PARAM_Integer,
 		     struct hdd_config, extscan_passive_max_chn_time,

core/hdd/src/wlan_hdd_cfg80211.c

@@ -1826,7 +1826,8 @@ __wlan_hdd_cfg80211_get_supported_features(struct wiphy *wiphy,
 	fset |= WIFI_FEATURE_HOTSPOT;
 
 #ifdef FEATURE_WLAN_EXTSCAN
-	if (sme_is_feature_supported_by_fw(EXTENDED_SCAN)) {
+	if (pHddCtx->config->extscan_enabled &&
+	    sme_is_feature_supported_by_fw(EXTENDED_SCAN)) {
 		hdd_notice("EXTScan is supported by firmware");
 		fset |= WIFI_FEATURE_EXTSCAN | WIFI_FEATURE_HAL_EPNO;
 	}

core/hdd/src/wlan_hdd_ext_scan.c

@@ -1761,6 +1761,10 @@ static int __wlan_hdd_cfg80211_extscan_get_capabilities(struct wiphy *wiphy,
 	if (0 != ret)
 		return -EINVAL;
 
+	if (!pHddCtx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_EXTSCAN_SUBCMD_CONFIG_PARAM_MAX,
 		      data, data_len, wlan_hdd_extscan_config_policy)) {
 		hdd_err("Invalid ATTR");
@@ -1895,6 +1899,10 @@ static int __wlan_hdd_cfg80211_extscan_get_cached_results(struct wiphy *wiphy,
 	if (0 != retval)
 		return -EINVAL;
 
+	if (!pHddCtx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, PARAM_MAX, data, data_len,
 		wlan_hdd_extscan_config_policy)) {
 		hdd_err("Invalid ATTR");
@@ -2042,6 +2050,10 @@ __wlan_hdd_cfg80211_extscan_set_bssid_hotlist(struct wiphy *wiphy,
 	if (0 != retval)
 		return -EINVAL;
 
+	if (!pHddCtx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_EXTSCAN_SUBCMD_CONFIG_PARAM_MAX,
 		      data, data_len, wlan_hdd_extscan_config_policy)) {
 		hdd_err("Invalid ATTR");
@@ -2520,6 +2532,10 @@ __wlan_hdd_cfg80211_extscan_get_valid_channels(struct wiphy *wiphy,
 	if (0 != ret)
 		return -EINVAL;
 
+	if (!pHddCtx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_EXTSCAN_SUBCMD_CONFIG_PARAM_MAX,
 		      data, data_len, wlan_hdd_extscan_config_policy)) {
 		hdd_err("Invalid ATTR");
@@ -3181,6 +3197,10 @@ __wlan_hdd_cfg80211_extscan_start(struct wiphy *wiphy,
 	if (0 != retval)
 		return -EINVAL;
 
+	if (!pHddCtx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, PARAM_MAX, data, data_len,
 		wlan_hdd_extscan_config_policy)) {
 		hdd_err("Invalid ATTR");
@@ -3394,6 +3414,10 @@ __wlan_hdd_cfg80211_extscan_stop(struct wiphy *wiphy,
 	if (0 != retval)
 		return -EINVAL;
 
+	if (!pHddCtx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, PARAM_MAX, data, data_len,
 			wlan_hdd_extscan_config_policy)) {
 		hdd_err("Invalid ATTR");
@@ -3520,6 +3544,10 @@ __wlan_hdd_cfg80211_extscan_reset_bssid_hotlist(struct wiphy *wiphy,
 	if (0 != retval)
 		return -EINVAL;
 
+	if (!pHddCtx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_EXTSCAN_SUBCMD_CONFIG_PARAM_MAX,
 		      data, data_len, wlan_hdd_extscan_config_policy)) {
 		hdd_err("Invalid ATTR");
@@ -3644,6 +3672,10 @@ __wlan_hdd_cfg80211_extscan_reset_significant_change(struct wiphy
 	if (0 != retval)
 		return -EINVAL;
 
+	if (!pHddCtx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_EXTSCAN_SUBCMD_CONFIG_PARAM_MAX,
 		      data, data_len, wlan_hdd_extscan_config_policy)) {
 		hdd_err("Invalid ATTR");
@@ -3851,6 +3883,10 @@ static int __wlan_hdd_cfg80211_set_epno_list(struct wiphy *wiphy,
 	if (ret_val)
 		return ret_val;
 
+	if (!hdd_ctx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
 		hdd_err("Command not allowed in FTM mode");
 		return -EPERM;
@@ -4306,6 +4342,10 @@ __wlan_hdd_cfg80211_extscan_set_ssid_hotlist(struct wiphy *wiphy,
 	if (0 != retval)
 		return -EINVAL;
 
+	if (!hdd_ctx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, PARAM_MAX,
 		      data, data_len,
 		      wlan_hdd_extscan_config_policy)) {
@@ -4524,6 +4564,10 @@ __wlan_hdd_cfg80211_extscan_reset_ssid_hotlist(struct wiphy *wiphy,
 	if (0 != retval)
 		return -EINVAL;
 
+	if (!hdd_ctx->config->extscan_enabled) {
+		hdd_err("extscan not supported");
+		return -ENOTSUPP;
+	}
 	if (nla_parse(tb, PARAM_MAX,
 		      data, data_len,
 		      wlan_hdd_extscan_config_policy)) {