qcacmn: Add qdf_opmode_str()

It is often useful to print the human readable version of an operating
mode in a log message or some other user-facing string. Add a function
for mapping QDF_OPMODE to human readable strings, qdf_opmode_str(), in
QDF such that various consumers do not have to implement it themselves.

Change-Id: I8756fb2ea97b3b8c7af2633b07694ad1e74d6d3e
CRs-Fixed: 2331888

qdf/inc/qdf_types.h

@@ -553,9 +553,20 @@ enum QDF_OPMODE {
 	QDF_WDS_MODE,
 	QDF_BTAMP_MODE,
 	QDF_AHDEMO_MODE,
+
+	/* Add new OP Modes to qdf_opmode_str as well */
+
 	QDF_MAX_NO_OF_MODE
 };
 
+/**
+ * qdf_opmode_str() - Return a human readable string representation of @opmode
+ * @opmode: The opmode to convert
+ *
+ * Return: string representation of @opmode
+ */
+const char *qdf_opmode_str(const enum QDF_OPMODE opmode);
+
 /**
  * enum QDF_GLOBAL_MODE - global mode when driver is loaded.
  *

qdf/src/qdf_types.c

@@ -23,6 +23,44 @@
 #include "qdf_trace.h"
 #include "qdf_types.h"
 
+const char *qdf_opmode_str(const enum QDF_OPMODE opmode)
+{
+	switch (opmode) {
+	case QDF_STA_MODE:
+		return "STA";
+	case QDF_SAP_MODE:
+		return "SAP";
+	case QDF_P2P_CLIENT_MODE:
+		return "P2P Client";
+	case QDF_P2P_GO_MODE:
+		return "P2P GO";
+	case QDF_FTM_MODE:
+		return "FTM";
+	case QDF_IBSS_MODE:
+		return "IBSS";
+	case QDF_MONITOR_MODE:
+		return "Monitor";
+	case QDF_P2P_DEVICE_MODE:
+		return "P2P Device";
+	case QDF_OCB_MODE:
+		return "OCB";
+	case QDF_EPPING_MODE:
+		return "EPPing";
+	case QDF_QVIT_MODE:
+		return "QVIT";
+	case QDF_NDI_MODE:
+		return "NDI";
+	case QDF_WDS_MODE:
+		return "WDS";
+	case QDF_BTAMP_MODE:
+		return "BTAMP";
+	case QDF_AHDEMO_MODE:
+		return "AHDEMO";
+	default:
+		return "Invalid operating mode";
+	}
+}
+
 static QDF_STATUS qdf_consume_char(const char **str, char c)
 {
 	if ((*str)[0] != c)