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-rw-r--r--package/mac80211/patches/330-nl80211_ht40.patch303
1 files changed, 303 insertions, 0 deletions
diff --git a/package/mac80211/patches/330-nl80211_ht40.patch b/package/mac80211/patches/330-nl80211_ht40.patch
new file mode 100644
index 0000000000..267dd0b3e6
--- /dev/null
+++ b/package/mac80211/patches/330-nl80211_ht40.patch
@@ -0,0 +1,303 @@
+This patch adds new NL80211_CMD_SET_WIPHY attributes
+NL80211_ATTR_WIPHY_FREQ and NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET to allow
+userspace to set the operating channel (e.g., hostapd for AP mode).
+
+Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
+Acked-by: Johannes Berg <johannes@sipsolutions.net>
+
+
+Index: wireless-testing/include/linux/nl80211.h
+===================================================================
+--- wireless-testing.orig/include/linux/nl80211.h 2008-11-26 15:15:31.000000000 +0200
++++ wireless-testing/include/linux/nl80211.h 2008-11-26 15:16:59.000000000 +0200
+@@ -26,8 +26,9 @@
+ * @NL80211_CMD_GET_WIPHY: request information about a wiphy or dump request
+ * to get a list of all present wiphys.
+ * @NL80211_CMD_SET_WIPHY: set wiphy parameters, needs %NL80211_ATTR_WIPHY or
+- * %NL80211_ATTR_IFINDEX; can be used to set %NL80211_ATTR_WIPHY_NAME
+- * and/or %NL80211_ATTR_WIPHY_TXQ_PARAMS.
++ * %NL80211_ATTR_IFINDEX; can be used to set %NL80211_ATTR_WIPHY_NAME,
++ * %NL80211_ATTR_WIPHY_TXQ_PARAMS, %NL80211_ATTR_WIPHY_FREQ, and/or
++ * %NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET.
+ * @NL80211_CMD_NEW_WIPHY: Newly created wiphy, response to get request
+ * or rename notification. Has attributes %NL80211_ATTR_WIPHY and
+ * %NL80211_ATTR_WIPHY_NAME.
+@@ -180,6 +181,14 @@
+ * /sys/class/ieee80211/<phyname>/index
+ * @NL80211_ATTR_WIPHY_NAME: wiphy name (used for renaming)
+ * @NL80211_ATTR_WIPHY_TXQ_PARAMS: a nested array of TX queue parameters
++ * @NL80211_ATTR_WIPHY_FREQ: frequency of the selected channel in MHz
++ * @NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET: included with NL80211_ATTR_WIPHY_FREQ
++ * if HT20 or HT40 are allowed (i.e., 802.11n disabled if not included):
++ * NL80211_SEC_CHAN_NO_HT = HT not allowed (i.e., same as not including
++ * this attribute)
++ * NL80211_SEC_CHAN_DISABLED = HT20 only
++ * NL80211_SEC_CHAN_BELOW = secondary channel is below the primary channel
++ * NL80211_SEC_CHAN_ABOVE = secondary channel is above the primary channel
+ *
+ * @NL80211_ATTR_IFINDEX: network interface index of the device to operate on
+ * @NL80211_ATTR_IFNAME: network interface name
+@@ -315,6 +324,8 @@
+ NL80211_ATTR_BSS_BASIC_RATES,
+
+ NL80211_ATTR_WIPHY_TXQ_PARAMS,
++ NL80211_ATTR_WIPHY_FREQ,
++ NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET,
+
+ /* add attributes here, update the policy in nl80211.c */
+
+@@ -329,6 +340,8 @@
+ #define NL80211_ATTR_HT_CAPABILITY NL80211_ATTR_HT_CAPABILITY
+ #define NL80211_ATTR_BSS_BASIC_RATES NL80211_ATTR_BSS_BASIC_RATES
+ #define NL80211_ATTR_WIPHY_TXQ_PARAMS NL80211_ATTR_WIPHY_TXQ_PARAMS
++#define NL80211_ATTR_WIPHY_FREQ NL80211_ATTR_WIPHY_FREQ
++#define NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET
+
+ #define NL80211_MAX_SUPP_RATES 32
+ #define NL80211_MAX_SUPP_REG_RULES 32
+@@ -742,4 +755,10 @@
+ NL80211_TXQ_Q_BK
+ };
+
++enum nl80211_sec_chan_offset {
++ NL80211_SEC_CHAN_NO_HT /* No HT */,
++ NL80211_SEC_CHAN_DISABLED /* HT20 only */,
++ NL80211_SEC_CHAN_BELOW /* HT40- */,
++ NL80211_SEC_CHAN_ABOVE /* HT40+ */
++};
+ #endif /* __LINUX_NL80211_H */
+Index: wireless-testing/include/net/cfg80211.h
+===================================================================
+--- wireless-testing.orig/include/net/cfg80211.h 2008-11-26 15:15:31.000000000 +0200
++++ wireless-testing/include/net/cfg80211.h 2008-11-26 15:29:50.000000000 +0200
+@@ -392,6 +392,9 @@
+ /* from net/wireless.h */
+ struct wiphy;
+
++/* from net/ieee80211.h */
++struct ieee80211_channel;
++
+ /**
+ * struct cfg80211_ops - backend description for wireless configuration
+ *
+@@ -450,6 +453,8 @@
+ * @change_bss: Modify parameters for a given BSS.
+ *
+ * @set_txq_params: Set TX queue parameters
++ *
++ * @set_channel: Set channel
+ */
+ struct cfg80211_ops {
+ int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
+@@ -513,6 +518,10 @@
+
+ int (*set_txq_params)(struct wiphy *wiphy,
+ struct ieee80211_txq_params *params);
++
++ int (*set_channel)(struct wiphy *wiphy,
++ struct ieee80211_channel *chan,
++ enum nl80211_sec_chan_offset);
+ };
+
+ #endif /* __NET_CFG80211_H */
+Index: wireless-testing/net/mac80211/cfg.c
+===================================================================
+--- wireless-testing.orig/net/mac80211/cfg.c 2008-11-26 15:15:31.000000000 +0200
++++ wireless-testing/net/mac80211/cfg.c 2008-11-26 15:19:34.000000000 +0200
+@@ -1095,6 +1095,18 @@
+ return 0;
+ }
+
++static int ieee80211_set_channel(struct wiphy *wiphy,
++ struct ieee80211_channel *chan,
++ enum nl80211_sec_chan_offset sec_chan_offset)
++{
++ struct ieee80211_local *local = wiphy_priv(wiphy);
++
++ local->oper_channel = chan;
++ local->oper_sec_chan_offset = sec_chan_offset;
++
++ return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
++}
++
+ struct cfg80211_ops mac80211_config_ops = {
+ .add_virtual_intf = ieee80211_add_iface,
+ .del_virtual_intf = ieee80211_del_iface,
+@@ -1122,4 +1134,5 @@
+ #endif
+ .change_bss = ieee80211_change_bss,
+ .set_txq_params = ieee80211_set_txq_params,
++ .set_channel = ieee80211_set_channel,
+ };
+Index: wireless-testing/net/wireless/nl80211.c
+===================================================================
+--- wireless-testing.orig/net/wireless/nl80211.c 2008-11-26 15:15:31.000000000 +0200
++++ wireless-testing/net/wireless/nl80211.c 2008-11-26 15:31:31.000000000 +0200
+@@ -59,6 +59,8 @@
+ [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
+ .len = BUS_ID_SIZE-1 },
+ [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
++ [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
++ [NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET] = { .type = NLA_U32 },
+
+ [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
+ [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
+@@ -359,6 +361,61 @@
+ }
+ }
+
++ if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
++ enum nl80211_sec_chan_offset sec_chan_offset =
++ NL80211_SEC_CHAN_NO_HT;
++ struct ieee80211_channel *chan;
++ u32 freq, sec_freq;
++
++ if (!rdev->ops->set_channel) {
++ result = -EOPNOTSUPP;
++ goto bad_res;
++ }
++
++ if (info->attrs[NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]) {
++ sec_chan_offset = nla_get_u32(
++ info->attrs[
++ NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]);
++ if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
++ sec_chan_offset != NL80211_SEC_CHAN_DISABLED &&
++ sec_chan_offset != NL80211_SEC_CHAN_BELOW &&
++ sec_chan_offset != NL80211_SEC_CHAN_ABOVE) {
++ result = -EINVAL;
++ goto bad_res;
++ }
++ }
++
++ freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
++ chan = ieee80211_get_channel(&rdev->wiphy, freq);
++ if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
++ /* Primary channel not allowed */
++ result = -EINVAL;
++ goto bad_res;
++ }
++ if (sec_chan_offset == NL80211_SEC_CHAN_BELOW)
++ sec_freq = freq - 20;
++ else if (sec_chan_offset == NL80211_SEC_CHAN_ABOVE)
++ sec_freq = freq + 20;
++ else
++ sec_freq = 0;
++
++ if (sec_freq) {
++ struct ieee80211_channel *schan;
++ schan = ieee80211_get_channel(&rdev->wiphy, sec_freq);
++ if (!schan || schan->flags & IEEE80211_CHAN_DISABLED) {
++ /* Secondary channel not allowed */
++ result = -EINVAL;
++ goto bad_res;
++ }
++ }
++
++ result = rdev->ops->set_channel(&rdev->wiphy, chan,
++ sec_chan_offset);
++ if (result)
++ goto bad_res;
++ }
++
++
+ bad_res:
+ cfg80211_put_dev(rdev);
+ return result;
+Index: wireless-testing/include/net/mac80211.h
+===================================================================
+--- wireless-testing.orig/include/net/mac80211.h 2008-11-26 15:15:31.000000000 +0200
++++ wireless-testing/include/net/mac80211.h 2008-11-26 15:15:47.000000000 +0200
+@@ -507,6 +507,9 @@
+
+ struct ieee80211_ht_conf {
+ bool enabled;
++ int sec_chan_offset; /* 0 = HT40 disabled; -1 = HT40 enabled, secondary
++ * channel below primary; 1 = HT40 enabled,
++ * secondary channel above primary */
+ };
+
+ /**
+Index: wireless-testing/net/mac80211/util.c
+===================================================================
+--- wireless-testing.orig/net/mac80211/util.c 2008-11-26 15:15:31.000000000 +0200
++++ wireless-testing/net/mac80211/util.c 2008-11-26 15:20:26.000000000 +0200
+@@ -641,6 +641,7 @@
+ chan->flags & IEEE80211_CHAN_NO_IBSS)
+ return ret;
+ local->oper_channel = chan;
++ local->oper_sec_chan_offset = NL80211_SEC_CHAN_NO_HT;
+
+ if (local->sw_scanning || local->hw_scanning)
+ ret = 0;
+Index: wireless-testing/net/mac80211/ieee80211_i.h
+===================================================================
+--- wireless-testing.orig/net/mac80211/ieee80211_i.h 2008-11-26 15:15:31.000000000 +0200
++++ wireless-testing/net/mac80211/ieee80211_i.h 2008-11-26 15:20:12.000000000 +0200
+@@ -626,6 +626,7 @@
+ struct delayed_work scan_work;
+ struct ieee80211_sub_if_data *scan_sdata;
+ struct ieee80211_channel *oper_channel, *scan_channel;
++ enum nl80211_sec_chan_offset oper_sec_chan_offset;
+ u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
+ size_t scan_ssid_len;
+ struct list_head bss_list;
+Index: wireless-testing/net/mac80211/main.c
+===================================================================
+--- wireless-testing.orig/net/mac80211/main.c 2008-11-26 15:15:31.000000000 +0200
++++ wireless-testing/net/mac80211/main.c 2008-11-26 15:29:09.000000000 +0200
+@@ -195,20 +195,42 @@
+ struct ieee80211_channel *chan;
+ int ret = 0;
+ int power;
++ enum nl80211_sec_chan_offset sec_chan_offset;
+
+ might_sleep();
+
+- if (local->sw_scanning)
++ if (local->sw_scanning) {
+ chan = local->scan_channel;
+- else
++ sec_chan_offset = NL80211_SEC_CHAN_NO_HT;
++ } else {
+ chan = local->oper_channel;
++ sec_chan_offset = local->oper_sec_chan_offset;
++ }
+
+- if (chan != local->hw.conf.channel) {
++ if (chan != local->hw.conf.channel ||
++ sec_chan_offset != local->hw.conf.ht.sec_chan_offset) {
+ local->hw.conf.channel = chan;
++ switch (sec_chan_offset) {
++ case NL80211_SEC_CHAN_NO_HT:
++ local->hw.conf.ht.enabled = false;
++ local->hw.conf.ht.sec_chan_offset = 0;
++ break;
++ case NL80211_SEC_CHAN_DISABLED:
++ local->hw.conf.ht.enabled = true;
++ local->hw.conf.ht.sec_chan_offset = 0;
++ break;
++ case NL80211_SEC_CHAN_BELOW:
++ local->hw.conf.ht.enabled = true;
++ local->hw.conf.ht.sec_chan_offset = -1;
++ break;
++ case NL80211_SEC_CHAN_ABOVE:
++ local->hw.conf.ht.enabled = true;
++ local->hw.conf.ht.sec_chan_offset = 1;
++ break;
++ }
+ changed |= IEEE80211_CONF_CHANGE_CHANNEL;
+ }
+
+-
+ if (!local->hw.conf.power_level)
+ power = chan->max_power;
+ else
+
+--
+Jouni Malinen PGP id EFC895FA
+--
+To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
+the body of a message to majordomo@vger.kernel.org
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+
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