feat: channel/band mapping helpers for radio1 AP

payload/user/remote_access/pager-webui/server.py

@@ -1594,6 +1594,55 @@ def _uci_wifi_iface(name):
     return _uci_values('wireless.%s' % name)
 
 
+BAND_2G = '2.4'
+BAND_5G = '5'
+BAND_6G = '6'
+
+CHANNEL_BANDS = {
+    BAND_2G: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11],
+    BAND_5G: [36, 40, 44, 48, 52, 56, 60, 64,
+              100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
+              149, 153, 157, 161, 165],
+    BAND_6G: list(range(1, 234, 4)),
+}
+DFS_CHANNELS = frozenset([52, 56, 60, 64, 100, 104, 108, 112, 116, 120,
+                          124, 128, 132, 136, 140, 144])
+
+
+def channel_band(ch):
+    if ch is None:
+        return None
+    try:
+        ch = int(ch)
+    except (TypeError, ValueError):
+        return None
+    if 1 <= ch <= 14:
+        return BAND_2G
+    if 36 <= ch <= 177:
+        return BAND_5G
+    if 1 <= ch <= 233 and (ch - 1) % 4 == 0:
+        return BAND_6G
+    return None
+
+
+def channel_freq(band, ch):
+    if band == BAND_2G:
+        return 2412 + (ch - 1) * 5
+    if band == BAND_5G:
+        return 5180 + (ch - 36) * 5
+    if band == BAND_6G:
+        return 5955 + (ch - 1) * 5
+    return None
+
+
+def band_htmode(band):
+    return {BAND_2G: 'HT20', BAND_5G: 'VHT80', BAND_6G: 'HE80'}.get(band)
+
+
+def band_radio(band):
+    return 'radio0' if band == BAND_2G else 'radio1'
+
+
 def _uci_section(section):
     return _uci_values(section)