resync with kamikaze

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@3844 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 352 deletions

diff --git a/target/linux/package/ieee80211-dscape/src/ieee80211_scan.c b/target/linux/package/ieee80211-dscape/src/ieee80211_scan.c
deleted file mode 100644
index 7d4effe829..0000000000
--- a/target/linux/package/ieee80211-dscape/src/ieee80211_scan.c
+++ /dev/null
@@ -1,352 +0,0 @@
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/config.h>
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-
-#include <net/ieee80211.h>
-#include "ieee80211_i.h"
-#include "rate_control.h"
-
-
-/* Maximum number of seconds to wait for the traffic load to get below
- * threshold before forcing a passive scan. */
-#define MAX_SCAN_WAIT 60
-/* Threshold (pkts/sec TX or RX) for delaying passive scan */
-#define SCAN_TXRX_THRESHOLD 75
-
-static void get_channel_params(struct ieee80211_local *local, int channel,
-				struct ieee80211_hw_modes **mode,
-				struct ieee80211_channel **chan)
-{
-	int m;
-	
-	for (m = 0; m < local->hw->num_modes; m++) {
-		*mode = &local->hw->modes[m];
-		if ((*mode)->mode == local->conf.phymode)
-			break;
-	}
-	local->scan.mode_idx = m;
-	local->scan.chan_idx = 0;
-	do {
-		*chan = &(*mode)->channels[local->scan.chan_idx];
-		if ((*chan)->chan == channel) {
-			return;
-		}
-		local->scan.chan_idx++;
-	} while (local->scan.chan_idx < (*mode)->num_channels);
-	*chan = NULL;
-}
-
-
-static void next_chan_same_mode(struct ieee80211_local *local,
-				struct ieee80211_hw_modes **mode,
-				struct ieee80211_channel **chan)
-{
-	int m, prev;
-
-	for (m = 0; m < local->hw->num_modes; m++) {
-		*mode = &local->hw->modes[m];
-		if ((*mode)->mode == local->conf.phymode)
-			break;
-	}
-	local->scan.mode_idx = m;
-
-	/* Select next channel - scan only channels marked with W_SCAN flag */
-	prev = local->scan.chan_idx;
-	do {
-		local->scan.chan_idx++;
-		if (local->scan.chan_idx >= (*mode)->num_channels)
-			local->scan.chan_idx = 0;
-		*chan = &(*mode)->channels[local->scan.chan_idx];
-		if ((*chan)->flag & IEEE80211_CHAN_W_SCAN)
-			break;
-	} while (local->scan.chan_idx != prev);
-}
-
-
-static void next_chan_all_modes(struct ieee80211_local *local,
-				struct ieee80211_hw_modes **mode,
-				struct ieee80211_channel **chan)
-{
-	int prev, prev_m;
-
-	if (local->scan.mode_idx >= local->hw->num_modes) {
-		local->scan.mode_idx = 0;
-		local->scan.chan_idx = 0;
-	}
-
-	/* Select next channel - scan only channels marked with W_SCAN flag */
-	prev = local->scan.chan_idx;
-	prev_m = local->scan.mode_idx;
-	do {
-		*mode = &local->hw->modes[local->scan.mode_idx];
-		local->scan.chan_idx++;
-		if (local->scan.chan_idx >= (*mode)->num_channels) {
-			local->scan.chan_idx = 0;
-			local->scan.mode_idx++;
-			if (local->scan.mode_idx >= local->hw->num_modes)
-				local->scan.mode_idx = 0;
-			*mode = &local->hw->modes[local->scan.mode_idx];
-		}
-		*chan = &(*mode)->channels[local->scan.chan_idx];
-		if ((*chan)->flag & IEEE80211_CHAN_W_SCAN)
-			break;
-	} while (local->scan.chan_idx != prev ||
-		 local->scan.mode_idx != prev_m);
-}
-
-
-static void ieee80211_scan_start(struct net_device *dev,
-				 struct ieee80211_scan_conf *conf)
-{
-	struct ieee80211_local *local = dev->priv;
-	int old_mode_idx = local->scan.mode_idx;
-	int old_chan_idx = local->scan.chan_idx;
-	struct ieee80211_hw_modes *mode = NULL;
-	struct ieee80211_channel *chan = NULL;
-	int ret;
-
-	if (local->hw->passive_scan == 0) {
-		printk(KERN_DEBUG "%s: Scan handler called, yet the hardware "
-		       "does not support passive scanning. Disabled.\n",
-		       dev->name);
-		return;
-	}
-
-	if ((local->scan.tries < MAX_SCAN_WAIT &&
-	     local->scan.txrx_count > SCAN_TXRX_THRESHOLD)) {
-		local->scan.tries++;
-		/* Count TX/RX packets during one second interval and allow
-		 * scan to start only if the number of packets is below the
-		 * threshold. */
-		local->scan.txrx_count = 0;
-		local->scan.timer.expires = jiffies + HZ;
-		add_timer(&local->scan.timer);
-		return;
-	}
-
-	if (local->scan.skb == NULL) {
-		printk(KERN_DEBUG "%s: Scan start called even though scan.skb "
-		       "is not set\n", dev->name);
-	}
-
-	if (local->scan.our_mode_only) {
-		if (local->scan.channel > 0) {
-			get_channel_params(local, local->scan.channel, &mode,
-					   &chan);
-		} else
-			next_chan_same_mode(local, &mode, &chan);
-	}
-	else
-		next_chan_all_modes(local, &mode, &chan);
-
-	conf->scan_channel = chan->chan;
-	conf->scan_freq = chan->freq;
-	conf->scan_channel_val = chan->val;
-	conf->scan_phymode = mode->mode;
-	conf->scan_power_level = chan->power_level;
-	conf->scan_antenna_max = chan->antenna_max;
-	conf->scan_time = 2 * local->hw->channel_change_time +
-		local->scan.time; /* 10ms scan time+hardware changes */
-	conf->skb = local->scan.skb ?
-		skb_clone(local->scan.skb, GFP_ATOMIC) : NULL;
-	conf->tx_control = &local->scan.tx_control;
-#if 0
-	printk(KERN_DEBUG "%s: Doing scan on mode: %d freq: %d chan: %d "
-	       "for %d ms\n",
-	       dev->name, conf->scan_phymode, conf->scan_freq,
-	       conf->scan_channel, conf->scan_time);
-#endif
-	local->scan.rx_packets = 0;
-	local->scan.rx_beacon = 0;
-	local->scan.freq = chan->freq;
-	local->scan.in_scan = 1;
-
-	ieee80211_netif_oper(dev, NETIF_STOP);
-
-	ret = local->hw->passive_scan(dev, IEEE80211_SCAN_START, conf);
-
-	if (ret == 0) {
-		long usec = local->hw->channel_change_time +
-			local->scan.time;
-		usec += 1000000L / HZ - 1;
-		usec /= 1000000L / HZ;
-		local->scan.timer.expires = jiffies + usec;
-	} else {
-		local->scan.in_scan = 0;
-		if (conf->skb)
-			dev_kfree_skb(conf->skb);
-		ieee80211_netif_oper(dev, NETIF_WAKE);
-		if (ret == -EAGAIN) {
-			local->scan.timer.expires = jiffies +
-				(local->scan.interval * HZ / 100);
-			local->scan.mode_idx = old_mode_idx;
-			local->scan.chan_idx = old_chan_idx;
-		} else {
-			printk(KERN_DEBUG "%s: Got unknown error from "
-			       "passive_scan %d\n", dev->name, ret);
-			local->scan.timer.expires = jiffies +
-				(local->scan.interval * HZ);
-		}
-		local->scan.in_scan = 0;
-	}
-
-	add_timer(&local->scan.timer);
-}
-
-
-static void ieee80211_scan_stop(struct net_device *dev,
-				struct ieee80211_scan_conf *conf)
-{
-	struct ieee80211_local *local = dev->priv;
-	struct ieee80211_hw_modes *mode;
-	struct ieee80211_channel *chan;
-	int wait;
-
-	if (local->hw->passive_scan == NULL)
-		return;
-
-	if (local->scan.mode_idx >= local->hw->num_modes) {
-		local->scan.mode_idx = 0;
-		local->scan.chan_idx = 0;
-	}
-
-	mode = &local->hw->modes[local->scan.mode_idx];
-
-	if (local->scan.chan_idx >= mode->num_channels) {
-		local->scan.chan_idx = 0;
-	}
-
-	chan = &mode->channels[local->scan.chan_idx];
-
-	local->hw->passive_scan(dev, IEEE80211_SCAN_END, conf);
-
-#ifdef CONFIG_IEEE80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: Did scan on mode: %d freq: %d chan: %d "
-	       "GOT: %d Beacon: %d (%d)\n",
-	       dev->name,
-	       mode->mode, chan->freq, chan->chan,
-	       local->scan.rx_packets, local->scan.rx_beacon,
-	       local->scan.tries);
-#endif /* CONFIG_IEEE80211_VERBOSE_DEBUG */
-	local->scan.num_scans++;
-
-	local->scan.in_scan = 0;
-	ieee80211_netif_oper(dev, NETIF_WAKE);
-
-	local->scan.tries = 0;
-	/* Use random interval of scan.interval .. 2 * scan.interval */
-	wait = (local->scan.interval * HZ * ((net_random() & 127) + 128)) /
-		128;
-	local->scan.timer.expires = jiffies + wait;
-		
-	add_timer(&local->scan.timer);
-}
-
-
-static void ieee80211_scan_handler(unsigned long uldev)
-{
-        struct net_device *dev = (struct net_device *) uldev;
-	struct ieee80211_local *local = dev->priv;
-	struct ieee80211_scan_conf conf;
-
-	if (local->scan.interval == 0 && !local->scan.in_scan) {
-		/* Passive scanning is disabled - keep the timer always
-		 * running to make code cleaner. */
-		local->scan.timer.expires = jiffies + 10 * HZ;
-		add_timer(&local->scan.timer);
-		return;
-	}
-
-	memset(&conf, 0, sizeof(struct ieee80211_scan_conf));
-	conf.running_freq = local->conf.freq;
-	conf.running_channel = local->conf.channel;
-        conf.running_phymode = local->conf.phymode;
-	conf.running_channel_val = local->conf.channel_val;
-        conf.running_power_level = local->conf.power_level;
-        conf.running_antenna_max = local->conf.antenna_max;
-
-	if (local->scan.in_scan == 0)
-		ieee80211_scan_start(dev, &conf);
-	else
-		ieee80211_scan_stop(dev, &conf);
-}
-
-
-void ieee80211_init_scan(struct net_device *dev)
-{
-	struct ieee80211_local *local = dev->priv;
-	struct ieee80211_hdr hdr;
-	u16 fc;
-	int len = 10;
-	struct rate_control_extra extra;
-
-	/* Only initialize passive scanning if the hardware supports it */
-	if (!local->hw->passive_scan) {
-		local->scan.skb = NULL;
-		memset(&local->scan.tx_control, 0,
-		       sizeof(local->scan.tx_control));
-		printk(KERN_DEBUG "%s: Does not support passive scan, "
-		       "disabled\n", dev->name);
-		return;
-	}
-
-	local->scan.interval = 0;
-	local->scan.our_mode_only = 1;
-	local->scan.time = 10000;
-	local->scan.timer.function = ieee80211_scan_handler;
-	local->scan.timer.data = (unsigned long) dev;
-	local->scan.timer.expires = jiffies + local->scan.interval * HZ;
-	add_timer(&local->scan.timer);
-
-	/* Create a CTS from for broadcasting before
-	 * the low level changes channels */
-	local->scan.skb = alloc_skb(len, GFP_KERNEL);
-	if (local->scan.skb == NULL) {
-		printk(KERN_WARNING "%s: Failed to allocate CTS packet for "
-		       "passive scan\n", dev->name);
-		return;
-	}
-
-	fc = (WLAN_FC_TYPE_CTRL << 2) | (WLAN_FC_STYPE_CTS << 4);
-	hdr.frame_control = cpu_to_le16(fc);
-	hdr.duration_id =
-		cpu_to_le16(2 * local->hw->channel_change_time +
-			    local->scan.time);
-	memcpy(hdr.addr1, dev->dev_addr, ETH_ALEN); /* DA */
-	hdr.seq_ctrl = 0;
-
-	memcpy(skb_put(local->scan.skb, len), &hdr, len);
-
-	memset(&local->scan.tx_control, 0, sizeof(local->scan.tx_control));
-	local->scan.tx_control.key_idx = HW_KEY_IDX_INVALID;
-	local->scan.tx_control.do_not_encrypt = 1;
-	memset(&extra, 0, sizeof(extra));
-	extra.endidx = local->num_curr_rates;
-	local->scan.tx_control.tx_rate =
-		rate_control_get_rate(dev, local->scan.skb, &extra)->val;
-	local->scan.tx_control.no_ack = 1;
-}
-
-
-void ieee80211_stop_scan(struct net_device *dev)
-{
-	struct ieee80211_local *local = dev->priv;
-
-	if (local->hw->passive_scan != 0) {
-		del_timer_sync(&local->scan.timer);
-		dev_kfree_skb(local->scan.skb);
-		local->scan.skb = NULL;
-	}
-}