iw: add VHT80 support for IBSS

Signed-off-by: Sven Eckelmann <sven@open-mesh.com>

SVN-Revision: 47780

package/network/utils/iw/patches/301-ibss_add_VHT80.patch

+From: "Janusz.Dziedzic@tieto.com" <Janusz.Dziedzic@tieto.com>
+Date: Thu, 10 Sep 2015 12:04:13 +0200
+Subject: ibss: add VHT80 support for IBSS
+
+Add VHT80 support for IBSS.
+
+eg. iw wlan0 ibss join 5180 80MHZ
+    iw wlan0 ibbs join 5220 80MHZ
+
+Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
+[fix formatting]
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+ ibss.c | 49 +++++++++++++++++++++++++++++++++++++++++--------
+ 1 file changed, 41 insertions(+), 8 deletions(-)
+
+diff --git a/ibss.c b/ibss.c
+index 7a0b707..a99a262 100644
+--- a/ibss.c
++++ b/ibss.c
+@@ -16,6 +16,39 @@
+ 
+ SECTION(ibss);
+ 
++struct chanmode {
++	const char *name;
++	unsigned int width;
++	int freq1_diff;
++	int chantype; /* for older kernel */
++};
++
++static int get_cf1(const struct chanmode *chanmode, unsigned long freq)
++{
++	int cf1 = freq, j;
++	int vht80[] = { 5180, 5260, 5500, 5580, 5660, 5745 };
++
++	switch (chanmode->width) {
++	case NL80211_CHAN_WIDTH_80:
++	        /* setup center_freq1 */
++		for (j = 0; j < ARRAY_SIZE(vht80); j++) {
++			if (freq >= vht80[j] && freq < vht80[j] + 80)
++				break;
++		}
++
++		if (j == ARRAY_SIZE(vht80))
++			break;
++
++		cf1 = vht80[j] + 30;
++		break;
++	default:
++		cf1 = freq + chanmode->freq1_diff;
++		break;
++	}
++
++	return cf1;
++}
++
+ static int join_ibss(struct nl80211_state *state,
+ 		     struct nl_msg *msg,
+ 		     int argc, char **argv,
+@@ -30,12 +63,8 @@ static int join_ibss(struct nl80211_state *state,
+ 	int bintval;
+ 	int i;
+ 	unsigned long freq;
+-	static const struct {
+-		const char *name;
+-		unsigned int width;
+-		int freq1_diff;
+-		int chantype; /* for older kernel */
+-	} *chanmode_selected = NULL, chanmode[] = {
++	const struct chanmode *chanmode_selected = NULL;
++	static const struct chanmode chanmode[] = {
+ 		{ .name = "HT20",
+ 		  .width = NL80211_CHAN_WIDTH_20,
+ 		  .freq1_diff = 0,
+@@ -60,6 +89,10 @@ static int join_ibss(struct nl80211_state *state,
+ 		  .width = NL80211_CHAN_WIDTH_10,
+ 		  .freq1_diff = 0,
+ 		  .chantype = -1 },
++		{ .name = "80MHZ",
++		  .width = NL80211_CHAN_WIDTH_80,
++		  .freq1_diff = 0,
++		  .chantype = -1 },
+ 	};
+ 
+ 	if (argc < 2)
+@@ -90,7 +123,7 @@ static int join_ibss(struct nl80211_state *state,
+ 			NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
+ 				    chanmode_selected->width);
+ 			NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1,
+-				    freq + chanmode_selected->freq1_diff);
++				    get_cf1(chanmode_selected, freq));
+ 			if (chanmode_selected->chantype != -1)
+ 				NLA_PUT_U32(msg,
+ 					    NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+@@ -192,7 +225,7 @@ COMMAND(ibss, leave, NULL,
+ 	NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss,
+ 	"Leave the current IBSS cell.");
+ COMMAND(ibss, join,
+-	"<SSID> <freq in MHz> [HT20|HT40+|HT40-|NOHT|5MHZ|10MHZ] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]"
++	"<SSID> <freq in MHz> [HT20|HT40+|HT40-|NOHT|5MHZ|10MHZ|80MHZ] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]"
+ 	" [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] "
+ 	"[key d:0:abcde]",
+ 	NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss,

package/network/utils/iw/patches/302-ibss_use_MHz_instead_MHZ.patch

+From: Johannes Berg <johannes.berg@intel.com>
+Date: Fri, 18 Sep 2015 11:11:38 +0200
+Subject: ibss: use correct "MHz" instead of "MHZ"
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+ ibss.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/ibss.c b/ibss.c
+index a99a262..23bda70 100644
+--- a/ibss.c
++++ b/ibss.c
+@@ -81,15 +81,15 @@ static int join_ibss(struct nl80211_state *state,
+ 		  .width = NL80211_CHAN_WIDTH_20_NOHT,
+ 		  .freq1_diff = 0,
+ 		  .chantype = NL80211_CHAN_NO_HT },
+-		{ .name = "5MHZ",
++		{ .name = "5MHz",
+ 		  .width = NL80211_CHAN_WIDTH_5,
+ 		  .freq1_diff = 0,
+ 		  .chantype = -1 },
+-		{ .name = "10MHZ",
++		{ .name = "10MHz",
+ 		  .width = NL80211_CHAN_WIDTH_10,
+ 		  .freq1_diff = 0,
+ 		  .chantype = -1 },
+-		{ .name = "80MHZ",
++		{ .name = "80MHz",
+ 		  .width = NL80211_CHAN_WIDTH_80,
+ 		  .freq1_diff = 0,
+ 		  .chantype = -1 },
+@@ -225,7 +225,7 @@ COMMAND(ibss, leave, NULL,
+ 	NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss,
+ 	"Leave the current IBSS cell.");
+ COMMAND(ibss, join,
+-	"<SSID> <freq in MHz> [HT20|HT40+|HT40-|NOHT|5MHZ|10MHZ|80MHZ] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]"
++	"<SSID> <freq in MHz> [HT20|HT40+|HT40-|NOHT|5MHz|10MHz|80MHz] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]"
+ 	" [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] "
+ 	"[key d:0:abcde]",
+ 	NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss,