qcacmn: Add INI support to disable spectral feature

Add INI support to disable spectral feature and do not process the spectral
user commands if spectral feature is  disabled.

Change-Id: Id353131675454652d59fd5d5f8fd3d732a07b777
Acked-by: Shashikala Prabhu <pshashik@codeaurora.org>
CRs-Fixed: 2343947

spectral/dispatcher/inc/cfg_spectral.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2018 The Linux Foundation. All rights reserved.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: This file contains centralized cfg definitions of Spectral component
+ */
+#ifndef __CONFIG_SPECTRAL_H
+#define __CONFIG_SPECTRAL_H
+
+/*
+ * <ini>
+ * spectral_disable - disable spectral feature
+ * @Min: 0
+ * @Max: 1
+ * @Default: 0
+ *
+ * This ini is used to disable spectral feature.
+ *
+ * Related: None
+ *
+ * Supported Feature: Spectral
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_SPECTRAL_DISABLE \
+	CFG_INI_BOOL("spectral_disable", false, \
+			"Spectral disable")
+
+#define CFG_SPECTRAL_ALL \
+	CFG(CFG_SPECTRAL_DISABLE)
+
+#endif

spectral/dispatcher/inc/wlan_spectral_utils_api.h

@@ -27,6 +27,14 @@
 struct direct_buf_rx_data;
 struct wmi_spectral_cmd_ops;
 
+/**
+ * wlan_spectral_is_feature_disabled() - Check if spectral feature is disabled
+ * @psoc - the physical device object.
+ *
+ * Return : true if spectral is disabled, else false.
+ */
+bool wlan_spectral_is_feature_disabled(struct wlan_objmgr_psoc *psoc);
+
 /**
  * wlan_spectral_init() - API to init spectral component
  *