cfg80211: pass more detailed regulatory request information on reg_notifier()

Drivers may need more information than just who set the last regulatory domain,
as such lets just pass the last regulatory_request receipt. To do this we need
to move out to headers struct regulatory_request, and enum environment_cap. While
at it lets add documentation for enum environment_cap.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 47 insertions, 1 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f19c3e163663..dd1fd51638fc 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -357,6 +357,51 @@ enum reg_set_by {
         REGDOM_SET_BY_COUNTRY_IE,
 };
 
+/**
+ * enum environment_cap - Environment parsed from country IE
+ * @ENVIRON_ANY: indicates country IE applies to both indoor and
+ *      outdoor operation.
+ * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation
+ * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation
+ */
+enum environment_cap {
+        ENVIRON_ANY,
+        ENVIRON_INDOOR,
+        ENVIRON_OUTDOOR,
+};
+
+/**
+ * struct regulatory_request - receipt of last regulatory request
+ *
+ * @wiphy: this is set if this request's initiator is
+ *      %REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This
+ *      can be used by the wireless core to deal with conflicts
+ *      and potentially inform users of which devices specifically
+ *      cased the conflicts.
+ * @initiator: indicates who sent this request, could be any of
+ *      of those set in reg_set_by, %REGDOM_SET_BY_*
+ * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested
+ *      regulatory domain. We have a few special codes:
+ *      00 - World regulatory domain
+ *      99 - built by driver but a specific alpha2 cannot be determined
+ *      98 - result of an intersection between two regulatory domains
+ * @intersect: indicates whether the wireless core should intersect
+ *      the requested regulatory domain with the presently set regulatory
+ *      domain.
+ * @country_ie_checksum: checksum of the last processed and accepted
+ *      country IE
+ * @country_ie_env: lets us know if the AP is telling us we are outdoor,
+ *      indoor, or if it doesn't matter
+ */
+struct regulatory_request {
+        struct wiphy *wiphy;
+        enum reg_set_by initiator;
+        char alpha2[2];
+        bool intersect;
+        u32 country_ie_checksum;
+        enum environment_cap country_ie_env;
+};
+
 struct ieee80211_freq_range {
         u32 start_freq_khz;
         u32 end_freq_khz;
diff --git a/include/net/wireless.h b/include/net/wireless.h
index c3f6e462ec2d..9c19764a4849 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -213,7 +213,8 @@ struct wiphy {
         struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
 
         /* Lets us get back the wiphy on the callback */
-        int (*reg_notifier)(struct wiphy *wiphy, enum reg_set_by setby);
+        int (*reg_notifier)(struct wiphy *wiphy,
+                            struct regulatory_request *request);
 
         /* fields below are read-only, assigned by cfg80211 */