openwrt/package/mac80211/patches/419-mac80211-remove-antenna-sel.patch

Subject: mac80211: kill hw.conf.antenna_sel_{rx,tx}

Never actually used.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
---
 drivers/net/wireless/b43/main.c            |   25 +++----------------------
 drivers/net/wireless/b43legacy/main.c      |   18 ++----------------
 drivers/net/wireless/p54/p54common.c       |    3 +--
 drivers/net/wireless/rt2x00/rt2x00config.c |   20 ++++----------------
 drivers/net/wireless/rt2x00/rt2x00dev.c    |    6 ++----
 include/net/mac80211.h                     |    7 +------
 net/mac80211/debugfs.c                     |    8 --------
 net/mac80211/ieee80211_i.h                 |    2 --
 net/mac80211/tx.c                          |    1 -
 9 files changed, 13 insertions(+), 77 deletions(-)

--- everything.orig/net/mac80211/debugfs.c	2008-10-08 22:35:20.000000000 +0200
+++ everything/net/mac80211/debugfs.c	2008-10-08 22:35:26.000000000 +0200
@@ -47,10 +47,6 @@ static const struct file_operations name
 
 DEBUGFS_READONLY_FILE(frequency, 20, "%d",
 		      local->hw.conf.channel->center_freq);
-DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
-		      local->hw.conf.antenna_sel_tx);
-DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
-		      local->hw.conf.antenna_sel_rx);
 DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
 		      local->rts_threshold);
 DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
@@ -202,8 +198,6 @@ void debugfs_hw_add(struct ieee80211_loc
 	local->debugfs.keys = debugfs_create_dir("keys", phyd);
 
 	DEBUGFS_ADD(frequency);
-	DEBUGFS_ADD(antenna_sel_tx);
-	DEBUGFS_ADD(antenna_sel_rx);
 	DEBUGFS_ADD(rts_threshold);
 	DEBUGFS_ADD(fragmentation_threshold);
 	DEBUGFS_ADD(short_retry_limit);
@@ -258,8 +252,6 @@ void debugfs_hw_add(struct ieee80211_loc
 void debugfs_hw_del(struct ieee80211_local *local)
 {
 	DEBUGFS_DEL(frequency);
-	DEBUGFS_DEL(antenna_sel_tx);
-	DEBUGFS_DEL(antenna_sel_rx);
 	DEBUGFS_DEL(rts_threshold);
 	DEBUGFS_DEL(fragmentation_threshold);
 	DEBUGFS_DEL(short_retry_limit);
--- everything.orig/net/mac80211/ieee80211_i.h	2008-10-08 22:35:01.000000000 +0200
+++ everything/net/mac80211/ieee80211_i.h	2008-10-08 22:35:10.000000000 +0200
@@ -727,8 +727,6 @@ struct ieee80211_local {
 		struct dentry *rcdir;
 		struct dentry *rcname;
 		struct dentry *frequency;
-		struct dentry *antenna_sel_tx;
-		struct dentry *antenna_sel_rx;
 		struct dentry *rts_threshold;
 		struct dentry *fragmentation_threshold;
 		struct dentry *short_retry_limit;
--- everything.orig/include/net/mac80211.h	2008-10-08 22:35:30.000000000 +0200
+++ everything/include/net/mac80211.h	2008-10-08 22:39:56.000000000 +0200
@@ -324,7 +324,7 @@ struct ieee80211_tx_altrate {
  * @flags: transmit info flags, defined above
  * @band: TBD
  * @tx_rate_idx: TBD
- * @antenna_sel_tx: TBD
+ * @antenna_sel_tx: antenna to use, 0 for automatic diversity
  * @control: union for control data
  * @status: union for status data
  * @driver_data: array of driver_data pointers
@@ -474,9 +474,6 @@ static inline int __deprecated __IEEE802
  * @listen_interval: listen interval in units of beacon interval
  * @flags: configuration flags defined above
  * @power_level: requested transmit power (in dBm)
- * @antenna_sel_tx: transmit antenna selection, 0: default/diversity,
- *	1/2: antenna 0/1
- * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx
  * @ht_cap: describes current self configuration of 802.11n HT capabilities
  * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters
  * @channel: the channel to tune to
@@ -488,8 +485,6 @@ struct ieee80211_conf {
 	u16 listen_interval;
 	u32 flags;
 	int power_level;
-	u8 antenna_sel_tx;
-	u8 antenna_sel_rx;
 
 	struct ieee80211_channel *channel;
 
--- everything.orig/net/mac80211/tx.c	2008-10-08 22:37:05.000000000 +0200
+++ everything/net/mac80211/tx.c	2008-10-08 22:37:22.000000000 +0200
@@ -1975,7 +1975,6 @@ struct sk_buff *ieee80211_beacon_get(str
 	    sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE)
 		info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE;
 
-	info->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
 	info->control.retry_limit = 1;
 
 out:
--- everything.orig/drivers/net/wireless/b43/main.c	2008-10-08 22:40:06.000000000 +0200
+++ everything/drivers/net/wireless/b43/main.c	2008-10-08 22:40:45.000000000 +0200
@@ -1339,25 +1339,6 @@ u8 b43_ieee80211_antenna_sanitize(struct
 	return antenna_nr;
 }
 
-static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna)
-{
-	antenna = b43_ieee80211_antenna_sanitize(dev, antenna);
-	switch (antenna) {
-	case 0:		/* default/diversity */
-		return B43_ANTENNA_DEFAULT;
-	case 1:		/* Antenna 0 */
-		return B43_ANTENNA0;
-	case 2:		/* Antenna 1 */
-		return B43_ANTENNA1;
-	case 3:		/* Antenna 2 */
-		return B43_ANTENNA2;
-	case 4:		/* Antenna 3 */
-		return B43_ANTENNA3;
-	default:
-		return B43_ANTENNA_DEFAULT;
-	}
-}
-
 /* Convert a b43 antenna number value to the PHY TX control value. */
 static u16 b43_antenna_to_phyctl(int antenna)
 {
@@ -1399,7 +1380,7 @@ static void b43_write_beacon_template(st
 				  len, ram_offset, shm_size_offset, rate);
 
 	/* Write the PHY TX control parameters. */
-	antenna = b43_antenna_from_ieee80211(dev, info->antenna_sel_tx);
+	antenna = B43_ANTENNA_DEFAULT;
 	antenna = b43_antenna_to_phyctl(antenna);
 	ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
 	/* We can't send beacons with short preamble. Would get PHY errors. */
@@ -3399,9 +3380,9 @@ static int b43_op_config(struct ieee8021
 	}
 
 	/* Antennas for RX and management frame TX. */
-	antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_tx);
+	antenna = B43_ANTENNA_DEFAULT;
 	b43_mgmtframe_txantenna(dev, antenna);
-	antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_rx);
+	antenna = B43_ANTENNA_DEFAULT;
 	if (phy->ops->set_rx_antenna)
 		phy->ops->set_rx_antenna(dev, antenna);
 
--- everything.orig/drivers/net/wireless/b43legacy/main.c	2008-10-08 22:41:36.000000000 +0200
+++ everything/drivers/net/wireless/b43legacy/main.c	2008-10-08 22:41:59.000000000 +0200
@@ -2556,20 +2556,6 @@ init_failure:
 	return err;
 }
 
-static int b43legacy_antenna_from_ieee80211(u8 antenna)
-{
-	switch (antenna) {
-	case 0: /* default/diversity */
-		return B43legacy_ANTENNA_DEFAULT;
-	case 1: /* Antenna 0 */
-		return B43legacy_ANTENNA0;
-	case 2: /* Antenna 1 */
-		return B43legacy_ANTENNA1;
-	default:
-		return B43legacy_ANTENNA_DEFAULT;
-	}
-}
-
 static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
 				   struct ieee80211_conf *conf)
 {
@@ -2583,8 +2569,8 @@ static int b43legacy_op_dev_config(struc
 	int err = 0;
 	u32 savedirqs;
 
-	antenna_tx = b43legacy_antenna_from_ieee80211(conf->antenna_sel_tx);
-	antenna_rx = b43legacy_antenna_from_ieee80211(conf->antenna_sel_rx);
+	antenna_tx = B43legacy_ANTENNA_DEFAULT;
+	antenna_rx = B43legacy_ANTENNA_DEFAULT;
 
 	mutex_lock(&wl->mutex);
 	dev = wl->current_dev;
--- everything.orig/drivers/net/wireless/p54/p54common.c	2008-10-08 22:43:54.000000000 +0200
+++ everything/drivers/net/wireless/p54/p54common.c	2008-10-08 22:44:12.000000000 +0200
@@ -1211,8 +1211,7 @@ static int p54_config(struct ieee80211_h
 	struct p54_common *priv = dev->priv;
 
 	mutex_lock(&priv->conf_mutex);
-	priv->rx_antenna = (conf->antenna_sel_rx == 0) ?
-		2 : conf->antenna_sel_tx - 1;
+	priv->rx_antenna = 2; /* automatic */
 	priv->output_power = conf->power_level << 2;
 	ret = p54_set_freq(dev, cpu_to_le16(conf->channel->center_freq));
 	p54_set_vdcf(dev);
--- everything.orig/drivers/net/wireless/rt2x00/rt2x00config.c	2008-10-08 22:44:57.000000000 +0200
+++ everything/drivers/net/wireless/rt2x00/rt2x00config.c	2008-10-08 22:45:36.000000000 +0200
@@ -199,23 +199,15 @@ void rt2x00lib_config(struct rt2x00_dev 
 	 * to work with untill the link tuner decides that an antenna
 	 * switch should be performed.
 	 */
-	if (!conf->antenna_sel_rx &&
-	    default_ant->rx != ANTENNA_SW_DIVERSITY &&
+	if (default_ant->rx != ANTENNA_SW_DIVERSITY &&
 	    default_ant->rx != active_ant->rx)
 		flags |= CONFIG_UPDATE_ANTENNA;
-	else if (conf->antenna_sel_rx &&
-		 conf->antenna_sel_rx != active_ant->rx)
-		flags |= CONFIG_UPDATE_ANTENNA;
 	else if (active_ant->rx == ANTENNA_SW_DIVERSITY)
 		flags |= CONFIG_UPDATE_ANTENNA;
 
-	if (!conf->antenna_sel_tx &&
-	    default_ant->tx != ANTENNA_SW_DIVERSITY &&
+	if (default_ant->tx != ANTENNA_SW_DIVERSITY &&
 	    default_ant->tx != active_ant->tx)
 		flags |= CONFIG_UPDATE_ANTENNA;
-	else if (conf->antenna_sel_tx &&
-		 conf->antenna_sel_tx != active_ant->tx)
-		flags |= CONFIG_UPDATE_ANTENNA;
 	else if (active_ant->tx == ANTENNA_SW_DIVERSITY)
 		flags |= CONFIG_UPDATE_ANTENNA;
 
@@ -252,18 +244,14 @@ config:
 	}
 
 	if (flags & CONFIG_UPDATE_ANTENNA) {
-		if (conf->antenna_sel_rx)
-			libconf.ant.rx = conf->antenna_sel_rx;
-		else if (default_ant->rx != ANTENNA_SW_DIVERSITY)
+		if (default_ant->rx != ANTENNA_SW_DIVERSITY)
 			libconf.ant.rx = default_ant->rx;
 		else if (active_ant->rx == ANTENNA_SW_DIVERSITY)
 			libconf.ant.rx = ANTENNA_B;
 		else
 			libconf.ant.rx = active_ant->rx;
 
-		if (conf->antenna_sel_tx)
-			libconf.ant.tx = conf->antenna_sel_tx;
-		else if (default_ant->tx != ANTENNA_SW_DIVERSITY)
+		if (default_ant->tx != ANTENNA_SW_DIVERSITY)
 			libconf.ant.tx = default_ant->tx;
 		else if (active_ant->tx == ANTENNA_SW_DIVERSITY)
 			libconf.ant.tx = ANTENNA_B;
--- everything.orig/drivers/net/wireless/rt2x00/rt2x00dev.c	2008-10-08 22:44:28.000000000 +0200
+++ everything/drivers/net/wireless/rt2x00/rt2x00dev.c	2008-10-08 22:44:43.000000000 +0200
@@ -249,11 +249,9 @@ static void rt2x00lib_evaluate_antenna(s
 	rt2x00dev->link.ant.flags &= ~ANTENNA_RX_DIVERSITY;
 	rt2x00dev->link.ant.flags &= ~ANTENNA_TX_DIVERSITY;
 
-	if (rt2x00dev->hw->conf.antenna_sel_rx == 0 &&
-	    rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
+	if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
 		rt2x00dev->link.ant.flags |= ANTENNA_RX_DIVERSITY;
-	if (rt2x00dev->hw->conf.antenna_sel_tx == 0 &&
-	    rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
+	if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
 		rt2x00dev->link.ant.flags |= ANTENNA_TX_DIVERSITY;
 
 	if (!(rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY) &&