[fix] Removed option of 2.4GHz radio for 802.11ac #190

Closes #190

Author: pandafy

docs/source/backends/openwrt.rst

@@ -1417,9 +1417,8 @@ Automatic channel selection example
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 If you need to use the "automatic channel selection" feature of OpenWRT, you must set
-the channel to ``0`` and, unless you are using neither **802.11n** nor **802.11ac** nor **802.11ax**,
-you must set the ``hwmode`` property to tell OpenWRT which band to use
-(11g for 2.4 Ghz, 11a for 5 GHz).
+the channel to ``0``. You must also set the ``hwmode`` property to tell OpenWRT which
+band to use (11g for 2.4 Ghz, 11a for 5 GHz).
 
 The following example sets "automatic channel selection" for two radios, the first radio uses
 **802.11n** in the 2.4 GHz band, while the second uses **802.11ac** in the 5 GHz band.
@@ -1443,7 +1442,9 @@ The following example sets "automatic channel selection" for two radios, the fir
                 "driver": "mac80211",
                 "protocol": "802.11ac",
                 "channel": 0,  # 0 stands for auto
-                "hwmode": "11a",  # must set this explicitly, 11a means 5 GHz band
+                "hwmode": "11a",  # must set this explicitly, 11a means 5 GHz band,
+                                  # but this is optional for "802.11ac" because it only
+                                  # support 5 GHz band.
                 "channel_width": 80
             }
         ]

netjsonconfig/backends/openwrt/converters/radios.py

@@ -43,6 +43,8 @@ def __intermediate_hwmode(self, radio):
         if protocol in ['802.11a', '802.11b', '802.11g']:
             # return 11a, 11b or 11g
             return protocol[4:]
+        if protocol == '802.11ac':
+            return '11a'
         # determine hwmode depending on channel used
         if radio['channel'] == 0:
             # when using automatic channel selection, we need an

netjsonconfig/backends/openwrt/schema.py

@@ -465,9 +465,6 @@
             "radio_80211an_settings": {
                 "allOf": [{"$ref": "#/definitions/radio_hwmode_11a"}]
             },
-            "radio_80211ac_2ghz_settings": {
-                "allOf": [{"$ref": "#/definitions/radio_hwmode_11g"}]
-            },
             "radio_80211ac_5ghz_settings": {
                 "allOf": [{"$ref": "#/definitions/radio_hwmode_11a"}]
             },

netjsonconfig/schema.py

@@ -783,15 +783,6 @@
                 {"$ref": "#/definitions/radio_n_channel_width"},
             ],
         },
-        "radio_80211ac_2ghz_settings": {
-            "title": "802.11ac (2.4 GHz AC)",
-            "allOf": [
-                {"properties": {"protocol": {"enum": ["802.11ac"]}}},
-                {"$ref": "#/definitions/base_radio_settings"},
-                {"$ref": "#/definitions/radio_2ghz_channels"},
-                {"$ref": "#/definitions/radio_ac_channel_width"},
-            ],
-        },
         "radio_80211ac_5ghz_settings": {
             "title": "802.11ac (5 GHz AC)",
             "allOf": [
@@ -875,7 +866,6 @@
                 "oneOf": [
                     {"$ref": "#/definitions/radio_80211gn_settings"},
                     {"$ref": "#/definitions/radio_80211an_settings"},
-                    {"$ref": "#/definitions/radio_80211ac_2ghz_settings"},
                     {"$ref": "#/definitions/radio_80211ac_5ghz_settings"},
                     {"$ref": "#/definitions/radio_80211ax_2ghz_settings"},
                     {"$ref": "#/definitions/radio_80211ax_5ghz_settings"},

tests/openwrt/test_netjson.py

@@ -27,7 +27,7 @@
         {
             "name": "radio0",
             "protocol": "802.11ac",
-            "channel": 1,
+            "channel": 132,
             "channel_width": 80,
             "phy": "phy0",
             "country": "US",

tests/openwrt/test_radio.py

@@ -472,35 +472,6 @@ def test_parse_auto_80211n_5ghz_channel(self):
         o = OpenWrt(native=native)
         self.assertEqual(o.config, expected)
 
-    def test_auto_80211ac_2ghz_channel(self):
-        o = OpenWrt(
-            {
-                "radios": [
-                    {
-                        "name": "radio0",
-                        "phy": "phy0",
-                        "driver": "mac80211",
-                        "protocol": "802.11ac",
-                        "channel": 0,
-                        "channel_width": 80,
-                        "hwmode": "11g",
-                    }
-                ]
-            }
-        )
-        expected = self._tabs(
-            """package wireless
-
-config wifi-device 'radio0'
-    option channel 'auto'
-    option htmode 'VHT80'
-    option hwmode '11g'
-    option phy 'phy0'
-    option type 'mac80211'
-"""
-        )
-        self.assertEqual(o.render(), expected)
-
     def test_auto_80211ac_5ghz_channel(self):
         o = OpenWrt(
             {
@@ -827,7 +798,7 @@ def test_default_driver(self):
                     {
                         "name": "radio0",
                         "protocol": "802.11ac",
-                        "channel": 1,
+                        "channel": 132,
                         "channel_width": 80,
                         "phy": "phy0",
                         "country": "US",
@@ -841,11 +812,11 @@ def test_default_driver(self):
             """package wireless
 
 config wifi-device 'radio0'
-    option channel '1'
+    option channel '132'
     option country 'US'
     option disabled '0'
     option htmode 'VHT80'
-    option hwmode '11g'
+    option hwmode '11a'
     option phy 'phy0'
     option txpower '10'
     option type 'mac80211'