mac80211: rt2x00: allow to disable bands via platform data

SVN-Revision: 30629

package/mac80211/Makefile

@@ -11,7 +11,7 @@ include $(INCLUDE_DIR)/kernel.mk
 PKG_NAME:=mac80211
 
 PKG_VERSION:=2012-02-06
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 PKG_SOURCE_URL:=http://mirror2.openwrt.org/sources
 PKG_MD5SUM:=fae71c35ee3f3de6329f2db7aed6d265
 

package/mac80211/patches/608-rt2x00-allow_disabling_bands_through_platform_data.patch

@@ -0,0 +1,47 @@
+--- a/include/linux/rt2x00_platform.h
++++ b/include/linux/rt2x00_platform.h
+@@ -14,6 +14,9 @@
+ 
+ struct rt2x00_platform_data {
+ 	char *eeprom_file_name;
++
++	int disable_2ghz;
++	int disable_5ghz;
+ };
+ 
+ #endif /* _RT2X00_PLATFORM_H */
+--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
++++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
+@@ -825,6 +825,22 @@ static int rt2x00lib_probe_hw_modes(stru
+ 	unsigned int num_rates;
+ 	unsigned int i;
+ 
++	if (rt2x00dev->dev->platform_data) {
++		struct rt2x00_platform_data *pdata;
++
++		pdata = rt2x00dev->dev->platform_data;
++		if (pdata->disable_2ghz)
++			spec->supported_bands &= ~SUPPORT_BAND_2GHZ;
++		if (pdata->disable_5ghz)
++			spec->supported_bands &= ~SUPPORT_BAND_5GHZ;
++	}
++
++	if ((spec->supported_bands & SUPPORT_BAND_BOTH) == 0) {
++		ERROR(rt2x00dev, "No supported bands\n");
++		return -EINVAL;
++	}
++
++
+ 	num_rates = 0;
+ 	if (spec->supported_rates & SUPPORT_RATE_CCK)
+ 		num_rates += 4;
+--- a/drivers/net/wireless/rt2x00/rt2x00.h
++++ b/drivers/net/wireless/rt2x00/rt2x00.h
+@@ -420,6 +420,7 @@ struct hw_mode_spec {
+ 	unsigned int supported_bands;
+ #define SUPPORT_BAND_2GHZ	0x00000001
+ #define SUPPORT_BAND_5GHZ	0x00000002
++#define SUPPORT_BAND_BOTH	(SUPPORT_BAND_2GHZ | SUPPORT_BAND_5GHZ)
+ 
+ 	unsigned int supported_rates;
+ #define SUPPORT_RATE_CCK	0x00000001