Accumulative patch from commit b57b560034f1bb1ad3a3892228940dde97323c0e

b57b560 wpa_supplicant: Default to nl80211 instead of wext
ee28f08 hostapd: Add more messages for error paths
61d2ce2 hostapd: Reject configuration file without interface parameter
a8a7890 Clear extra_blacklist_count on FLUSH command
c646862 WPS ER: Allow UPnP interface to be forced
728d971 Use status code 17 (unable to handle new STA) on max-STA limitation
5e24dc8 Add dup_binstr() to help common binary string tasks
8b44ad7 Use os_zalloc() instead of os_malloc() + os_memset()
2c48211 FT RRB: Validate os_malloc() return value before using it
7ca902b Make vlan_file optional if dynamic_vlan is used
bdb112d Add bitfield routines
04382f7 NFC: Add no waiting and no multiple operations options for scripts
fe90496 WPS: Fix AP auto configuration on config token generation
28fcfb6 NFC: Increase wpa_cli command buffer size
8f7a6dd WPS NFC: Allow Device Password ID override for selected registrar
aaecb69 WPS: Use generic MAC Address attribute builder
9ccd916 P2P: Clean up channel--frequency conversion functions
e864c0a Use a common frequency to channel conversion function
02db75b FT: Reset FT flag upon STA deauthentication
7800d45 P2P: Set P2P_DEV_PEER_WAITING_RESPONSE from TX status callback
d78d3c6 EAP peer: Add check before calling getSessionId method
dd57970 Disable network temporarily on repeated connection failures

Change-Id: If8078d5c1ff40ea806e844543cf6f2bf9d24b7ac
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/wpa_supplicant/ap.c b/wpa_supplicant/ap.c
index 4033492..d9e1f82 100644
--- a/wpa_supplicant/ap.c
+++ b/wpa_supplicant/ap.c
@@ -55,21 +55,14 @@
 		/* default channel 11 */
 		conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
 		conf->channel = 11;
-	} else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
-		conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
-		conf->channel = (ssid->frequency - 2407) / 5;
-	} else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
-		   (ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
-		conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
-		conf->channel = (ssid->frequency - 5000) / 5;
-	} else if (ssid->frequency >= 56160 + 2160 * 1 &&
-		   ssid->frequency <= 56160 + 2160 * 4) {
-		conf->hw_mode = HOSTAPD_MODE_IEEE80211AD;
-		conf->channel = (ssid->frequency - 56160) / 2160;
 	} else {
-		wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
-			   ssid->frequency);
-		return -1;
+		conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency,
+						       &conf->channel);
+		if (conf->hw_mode == NUM_HOSTAPD_MODES) {
+			wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: "
+				   "%d MHz", ssid->frequency);
+			return -1;
+		}
 	}
 
 	/* TODO: enable HT40 if driver supports it;