wlan: Add support in driver to do sap restart during SSR
qcacld-2.0 to prima propagation
Presently, during subsystem restart Host is sending sap restart
indication to framework(via carrier off) to do SAP unload/load.
But SAP restart functionality is removed in framework when the
carrier off event is received, leading SAP fails to come-up
after subsystem restart .
Add support in driver to do SAP restart internally without sending
restart indication to framework, during subsystem restart.
This feature is controlled by ini param 'gEnableSapInternalRestart'
and by default it's enabled.
Change-Id: I76cb73c1887d4d8124cd9a1c29b9aac47642072a
CRs-Fixed: 1105651
diff --git a/CORE/HDD/src/wlan_hdd_early_suspend.c b/CORE/HDD/src/wlan_hdd_early_suspend.c
index 0ff4d4b..b96e9a6 100644
--- a/CORE/HDD/src/wlan_hdd_early_suspend.c
+++ b/CORE/HDD/src/wlan_hdd_early_suspend.c
@@ -2352,7 +2352,34 @@
return VOS_STATUS_SUCCESS;
}
+/**
+ * hdd_ssr_restart_sap() - restart sap on SSR
+ * @hdd_ctx: hdd context
+ *
+ * Return: nothing
+ */
+static void hdd_ssr_restart_sap(hdd_context_t *hdd_ctx)
+{
+ VOS_STATUS status;
+ hdd_adapter_list_node_t *adapter_node = NULL, *next = NULL;
+ hdd_adapter_t *adapter;
+ ENTER();
+
+ status = hdd_get_front_adapter (hdd_ctx, &adapter_node);
+ while (NULL != adapter_node && VOS_STATUS_SUCCESS == status) {
+ adapter = adapter_node->pAdapter;
+ if (adapter && adapter->device_mode == WLAN_HDD_SOFTAP) {
+ hddLog(VOS_TRACE_LEVEL_INFO, FL("in sap mode %p"),
+ adapter);
+ wlan_hdd_start_sap(adapter);
+ }
+ status = hdd_get_next_adapter(hdd_ctx, adapter_node, &next);
+ adapter_node = next;
+ }
+
+ EXIT();
+}
/* the HDD interface to WLAN driver re-init.
* This is called to initialize/start WLAN driver after a shutdown.
@@ -2401,7 +2428,8 @@
vos_set_reinit_in_progress(VOS_MODULE_ID_VOSS, TRUE);
/* The driver should always be initialized in STA mode after SSR */
- hdd_set_conparam(0);
+ if (VOS_STA_SAP_MODE != hdd_get_conparam())
+ hdd_set_conparam(0);
dev = wcnss_wlan_get_device();
if (NULL == dev)
@@ -2652,5 +2680,9 @@
success:
/* Trigger replay of BTC events */
send_btc_nlink_msg(WLAN_MODULE_DOWN_IND, 0);
+
+ if (pHddCtx->cfg_ini->sap_internal_restart)
+ hdd_ssr_restart_sap(pHddCtx);
+
return VOS_STATUS_SUCCESS;
}