mwifiex: set default regulatory domain

Driver gets region code from FW during initialisation. This patch
makes use of it for settting default regulatory domain using
regulatory_hint() API.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 38 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index c7e89188c350..bd07030d5430 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1422,6 +1422,7 @@ int mwifiex_register_cfg80211(struct mwifiex_private *priv)
         void *wdev_priv;
         struct wireless_dev *wdev;
         struct ieee80211_sta_ht_cap *ht_info;
+        u8 *country_code;
 
         wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
         if (!wdev) {
@@ -1484,6 +1485,11 @@ int mwifiex_register_cfg80211(struct mwifiex_private *priv)
                         "info: successfully registered wiphy device\n");
         }
 
+        country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
+        if (country_code && regulatory_hint(wdev->wiphy, country_code))
+                dev_err(priv->adapter->dev,
+                        "%s: regulatory_hint failed\n", __func__);
+
         priv->wdev = wdev;
 
         return ret;
diff --git a/drivers/net/wireless/mwifiex/cfp.c b/drivers/net/wireless/mwifiex/cfp.c
index 2fe1c33765b8..560871b0e236 100644
--- a/drivers/net/wireless/mwifiex/cfp.c
+++ b/drivers/net/wireless/mwifiex/cfp.c
@@ -71,6 +71,37 @@ u16 region_code_index[MWIFIEX_MAX_REGION_CODE] = { 0x10, 0x20, 0x30,
 
 static u8 supported_rates_n[N_SUPPORTED_RATES] = { 0x02, 0x04, 0 };
 
+struct region_code_mapping {
+        u8 code;
+        u8 region[IEEE80211_COUNTRY_STRING_LEN];
+};
+
+static struct region_code_mapping region_code_mapping_t[] = {
+        { 0x10, "US " }, /* US FCC */
+        { 0x20, "CA " }, /* IC Canada */
+        { 0x30, "EU " }, /* ETSI */
+        { 0x31, "ES " }, /* Spain */
+        { 0x32, "FR " }, /* France */
+        { 0x40, "JP " }, /* Japan */
+        { 0x41, "JP " }, /* Japan */
+        { 0x50, "CN " }, /* China */
+};
+
+/* This function converts integer code to region string */
+u8 *mwifiex_11d_code_2_region(u8 code)
+{
+        u8 i;
+        u8 size = sizeof(region_code_mapping_t)/
+                                sizeof(struct region_code_mapping);
+
+        /* Look for code in mapping table */
+        for (i = 0; i < size; i++)
+                if (region_code_mapping_t[i].code == code)
+                        return region_code_mapping_t[i].region;
+
+        return NULL;
+}
+
 /*
  * This function maps an index in supported rates table into
  * the corresponding data rate.
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index fcccf6b1373f..e601c46a1018 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -965,6 +965,7 @@ struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
                                         u32 *flags, struct vif_params *params);
 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct net_device *dev);
 
+u8 *mwifiex_11d_code_2_region(u8 code);
 
 #ifdef CONFIG_DEBUG_FS
 void mwifiex_debugfs_init(void);