wlan: Use user provided BW for 2.4Ghz HT connection
Add support to use user provided BW for 2.4Ghz HT connection.
If HT capability in connect req indicate connection in HT20, force
the connection in 2.4Ghz to HT20 only even if AP support HT40.
Added ini override_ht20_40_24g to enable/disable this feature.
Change-Id: Ia03b67b9d6487e3e27f1cf8875afe95af1300b4f
CRs-Fixed: 2084929
diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
index 398a8e9..2d61329 100644
--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
@@ -15583,6 +15583,51 @@
}
#endif
+/**
+ * wlan_hdd_check_ht20_ht40_ind() - check if Supplicant has indicated to
+ * connect in HT20 mode
+ * @hdd_ctx: hdd context
+ * @adapter: Pointer to the HDD adapter
+ * @req: Pointer to the structure cfg_connect_params receieved from user space
+ *
+ * This function will check if supplicant has indicated to to connect in HT20
+ * mode. this is currently applicable only for 2.4Ghz mode only.
+ * if feature is enabled and supplicant indicate HT20 set
+ * force_24ghz_in_ht20 to true to force 2.4Ghz in HT20 else set it to false.
+ *
+ * Return: void
+ */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 3, 0)
+static void wlan_hdd_check_ht20_ht40_ind(hdd_context_t *hdd_ctx,
+ hdd_adapter_t *adapter,
+ struct cfg80211_connect_params *req)
+{
+ hdd_wext_state_t *wext_state = WLAN_HDD_GET_WEXT_STATE_PTR(adapter);
+ tCsrRoamProfile *roam_profile;
+
+ roam_profile = &wext_state->roamProfile;
+ roam_profile->force_24ghz_in_ht20 = false;
+ if (hdd_ctx->cfg_ini->override_ht20_40_24g &&
+ !(req->ht_capa.cap_info &
+ IEEE80211_HT_CAP_SUP_WIDTH_20_40))
+ roam_profile->force_24ghz_in_ht20 = true;
+
+ hddLog(LOG1, FL("req->ht_capa.cap_info %x override_ht20_40_24g %d"),
+ req->ht_capa.cap_info, hdd_ctx->cfg_ini->override_ht20_40_24g);
+}
+#else
+static inline void wlan_hdd_check_ht20_ht40_ind(hdd_context_t *hdd_ctx,
+ hdd_adapter_t *adapter,
+ struct cfg80211_connect_params *req)
+{
+ hdd_wext_state_t *wext_state = WLAN_HDD_GET_WEXT_STATE_PTR(adapter);
+ tCsrRoamProfile *roam_profile;
+
+ roam_profile = &wext_state->roamProfile;
+ roam_profile->force_24ghz_in_ht20 = false;
+}
+#endif
+
/*
* FUNCTION: __wlan_hdd_cfg80211_connect
* This function is used to start the association process
@@ -15699,6 +15744,8 @@
if (0 != status)
hddLog(VOS_TRACE_LEVEL_ERROR, FL("scan abort failed"));
+ wlan_hdd_check_ht20_ht40_ind(pHddCtx, pAdapter, req);
+
status = wlan_hdd_cfg80211_connect_start(pAdapter, req->ssid,
req->ssid_len, req->bssid,
bssid_hint, channel);