wifi: utils: Move channel helpers to public API

These can be used for channel validation outside the utils.

Signed-off-by: Chaitanya Tata <[email protected]>

Author: krish2718

include/zephyr/net/wifi_utils.h

@@ -103,6 +103,49 @@ int wifi_utils_parse_scan_chan(char *scan_chan_str,
 			       struct wifi_band_channel *chan,
 			       uint8_t max_channels);
 
+
+/**
+ * @brief Validate a channel against a band.
+ *
+ * @param band Band to validate the channel against.
+ * @param chan Channel to validate.
+ *
+ * @retval true if the channel is valid for the band.
+ * @retval false if the channel is not valid for the band.
+ */
+bool wifi_utils_validate_chan(uint8_t band,
+			      uint16_t chan);
+
+/**
+ * @brief Validate a channel against the 2.4 GHz band.
+ *
+ * @param chan Channel to validate.
+ *
+ * @retval true if the channel is valid for the band.
+ * @retval false if the channel is not valid for the band.
+ */
+bool wifi_utils_validate_chan_2g(uint16_t chan);
+
+/**
+ * @brief Validate a channel against the 5 GHz band.
+ *
+ * @param chan Channel to validate.
+ *
+ * @retval true if the channel is valid for the band.
+ * @retval false if the channel is not valid for the band.
+ */
+bool wifi_utils_validate_chan_5g(uint16_t chan);
+
+/**
+ * @brief Validate a channel against the 6 GHz band.
+ *
+ * @param chan Channel to validate.
+ *
+ * @retval true if the channel is valid for the band.
+ * @retval false if the channel is not valid for the band.
+ */
+bool wifi_utils_validate_chan_6g(uint16_t chan);
+
 /**
  * @}
  */

subsys/net/l2/wifi/wifi_utils.c

@@ -44,7 +44,7 @@ static enum wifi_frequency_bands wifi_utils_map_band_str_to_idx(char *band_str)
 }
 
 
-static bool wifi_utils_validate_chan_2g(uint16_t chan)
+bool wifi_utils_validate_chan_2g(uint16_t chan)
 {
 	if ((chan >= 1) && (chan <= 14)) {
 		return true;
@@ -54,7 +54,7 @@ static bool wifi_utils_validate_chan_2g(uint16_t chan)
 }
 
 
-static bool wifi_utils_validate_chan_5g(uint16_t chan)
+bool wifi_utils_validate_chan_5g(uint16_t chan)
 {
 	uint16_t i;
 
@@ -68,7 +68,7 @@ static bool wifi_utils_validate_chan_5g(uint16_t chan)
 }
 
 
-static bool wifi_utils_validate_chan_6g(uint16_t chan)
+bool wifi_utils_validate_chan_6g(uint16_t chan)
 {
 	if (((chan >= 1) && (chan <= 233) && (!((chan - 1)%4))) ||
 	    (chan == 2)) {
@@ -79,7 +79,7 @@ static bool wifi_utils_validate_chan_6g(uint16_t chan)
 }
 
 
-static bool wifi_utils_validate_chan(uint8_t band,
+bool wifi_utils_validate_chan(uint8_t band,
 				     uint16_t chan)
 {
 	bool result = false;