qcacmn: Get opclass from freq and width given a country code

Add the API wlan_reg_get_opclass_from_freq_width, to give country_iso,
channel frequency, channel width and behaviour limit as input, and get
the operating class as output.

Change-Id: I96c39119ab855d10965b2603e8b15c21699daa68
CRs-Fixed: 2583789

umac/regulatory/dispatcher/inc/wlan_reg_services_api.h

@@ -546,6 +546,21 @@ QDF_STATUS wlan_reg_get_domain_from_country_code(v_REGDOMAIN_t *reg_domain_ptr,
 uint16_t wlan_reg_dmn_get_opclass_from_channel(uint8_t *country,
 					       uint8_t channel,
 					       uint8_t offset);
+
+/**
+ * wlan_reg_get_opclass_from_freq_width() - Get operating class from frequency
+ * @country: Country code.
+ * @freq: Channel center frequency.
+ * @ch_width: Channel width.
+ * @behav_limit: Behaviour limit.
+ *
+ * Return: Error code.
+ */
+uint8_t wlan_reg_get_opclass_from_freq_width(uint8_t *country,
+					     qdf_freq_t freq,
+					     uint8_t ch_width,
+					     uint16_t behav_limit);
+
 /**
  * wlan_reg_dmn_print_channels_in_opclass() - Print channels in op-class
  * @country: country alpha2

umac/regulatory/dispatcher/src/wlan_reg_services_api.c

@@ -267,6 +267,15 @@ uint16_t wlan_reg_dmn_get_opclass_from_channel(uint8_t *country,
 						offset);
 }
 
+uint8_t wlan_reg_get_opclass_from_freq_width(uint8_t *country,
+					     qdf_freq_t freq,
+					     uint8_t ch_width,
+					     uint16_t behav_limit)
+{
+	return reg_dmn_get_opclass_from_freq_width(country, freq, ch_width,
+						   behav_limit);
+}
+
 void wlan_reg_dmn_print_channels_in_opclass(uint8_t *country,
 					    uint8_t opclass)
 {