icnss: Send FW Down indication to WLAN host driver

If FW is down irrespective of crash, a uevent
is sent to wlan host driver to indicate FW is down.

Change-Id: I9fe2a2a11178f72ea27150d74d93a1e411eac030
CRs-fixed: 2027902
Signed-off-by: Hardik Kantilal Patel <hkpatel@codeaurora.org>
Signed-off-by: Anurag Chouhan <achouhan@codeaurora.org>

2 files changed, 33 insertions, 17 deletions

diff --git a/drivers/soc/qcom/icnss.c b/drivers/soc/qcom/icnss.c
index 16ab2400cd69..5b9281596c87 100644
--- a/drivers/soc/qcom/icnss.c
+++ b/drivers/soc/qcom/icnss.c
@@ -1763,11 +1763,29 @@ static void icnss_qmi_wlfw_clnt_notify(struct qmi_handle *handle,
 	}
 }
 
+static int icnss_call_driver_uevent(struct icnss_priv *priv,
+				    enum icnss_uevent uevent, void *data)
+{
+	struct icnss_uevent_data uevent_data;
+
+	if (!priv->ops || !priv->ops->uevent)
+		return 0;
+
+	icnss_pr_dbg("Calling driver uevent state: 0x%lx, uevent: %d\n",
+		     priv->state, uevent);
+
+	uevent_data.uevent = uevent;
+	uevent_data.data = data;
+
+	return priv->ops->uevent(&priv->pdev->dev, &uevent_data);
+}
+
 static void icnss_qmi_wlfw_clnt_ind(struct qmi_handle *handle,
 			  unsigned int msg_id, void *msg,
 			  unsigned int msg_len, void *ind_cb_priv)
 {
 	struct icnss_event_pd_service_down_data *event_data;
+	struct icnss_uevent_fw_down_data fw_down_data;
 
 	if (!penv)
 		return;
@@ -1799,6 +1817,9 @@ static void icnss_qmi_wlfw_clnt_ind(struct qmi_handle *handle,
 			return;
 		event_data->crashed = true;
 		event_data->fw_rejuvenate = true;
+		fw_down_data.crashed = true;
+		icnss_call_driver_uevent(penv, ICNSS_UEVENT_FW_DOWN,
+					 &fw_down_data);
 		icnss_driver_event_post(ICNSS_DRIVER_EVENT_PD_SERVICE_DOWN,
 					0, event_data);
 		break;
@@ -1912,23 +1933,6 @@ static int icnss_driver_event_server_exit(void *data)
 	return 0;
 }
 
-static int icnss_call_driver_uevent(struct icnss_priv *priv,
-				    enum icnss_uevent uevent, void *data)
-{
-	struct icnss_uevent_data uevent_data;
-
-	if (!priv->ops || !priv->ops->uevent)
-		return 0;
-
-	icnss_pr_dbg("Calling driver uevent state: 0x%lx, uevent: %d\n",
-		     priv->state, uevent);
-
-	uevent_data.uevent = uevent;
-	uevent_data.data = data;
-
-	return priv->ops->uevent(&priv->pdev->dev, &uevent_data);
-}
-
 static int icnss_call_driver_probe(struct icnss_priv *priv)
 {
 	int ret;
@@ -2308,6 +2312,7 @@ static int icnss_modem_notifier_nb(struct notifier_block *nb,
 	struct notif_data *notif = data;
 	struct icnss_priv *priv = container_of(nb, struct icnss_priv,
 					       modem_ssr_nb);
+	struct icnss_uevent_fw_down_data fw_down_data;
 
 	icnss_pr_dbg("Modem-Notify: event %lu\n", code);
 
@@ -2340,6 +2345,9 @@ static int icnss_modem_notifier_nb(struct notifier_block *nb,
 	if (notif->crashed == CRASH_STATUS_WDOG_BITE)
 		event_data->wdog_bite = true;
 
+	fw_down_data.crashed = !!notif->crashed;
+	icnss_call_driver_uevent(priv, ICNSS_UEVENT_FW_DOWN, &fw_down_data);
+
 	icnss_driver_event_post(ICNSS_DRIVER_EVENT_PD_SERVICE_DOWN,
 				ICNSS_EVENT_SYNC, event_data);
 
@@ -2403,6 +2411,7 @@ static int icnss_service_notifier_notify(struct notifier_block *nb,
 					       service_notifier_nb);
 	enum pd_subsys_state *state = data;
 	struct icnss_event_pd_service_down_data *event_data;
+	struct icnss_uevent_fw_down_data fw_down_data;
 
 	icnss_pr_dbg("PD service notification: 0x%lx state: 0x%lx\n",
 		     notification, priv->state);
@@ -2438,6 +2447,8 @@ static int icnss_service_notifier_notify(struct notifier_block *nb,
 event_post:
 	icnss_ignore_qmi_timeout(true);
 
+	fw_down_data.crashed = event_data->crashed;
+	icnss_call_driver_uevent(priv, ICNSS_UEVENT_FW_DOWN, &fw_down_data);
 	icnss_driver_event_post(ICNSS_DRIVER_EVENT_PD_SERVICE_DOWN,
 				ICNSS_EVENT_SYNC, event_data);
 done:
diff --git a/include/soc/qcom/icnss.h b/include/soc/qcom/icnss.h
index 731fa6970b95..7ef984afc442 100644
--- a/include/soc/qcom/icnss.h
+++ b/include/soc/qcom/icnss.h
@@ -20,6 +20,11 @@
 enum icnss_uevent {
 	ICNSS_UEVENT_FW_READY,
 	ICNSS_UEVENT_FW_CRASHED,
+	ICNSS_UEVENT_FW_DOWN,
+};
+
+struct icnss_uevent_fw_down_data {
+	bool crashed;
 };
 
 struct icnss_uevent_data {