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authorJohannes Berg <johannes@sipsolutions.net>2010-02-03 10:47:55 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-02-08 16:50:52 -0500
commit690680360cd22b55235481ca3421a3450a96138a (patch)
tree67b730c71d23c24a68ffc0fc85847aa17069fa64 /drivers/net/wireless/mac80211_hwsim.c
parent6e7e6213e4956828927c30e3ef5a42812d00c650 (diff)
downloadlinux-stericsson-690680360cd22b55235481ca3421a3450a96138a.tar.gz
mac80211_hwsim: add fake hw scan handler
For debugging hardware scan trigger/complete functionality, it was useful to have code in hwsim that pretends to do a hardware scan. This code could be extended to actually do the scan, but for now it was sufficient for me to only pretend. Since hwsim was written to ease debugging, it only makes sense to add it to it permanently. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
-rw-r--r--drivers/net/wireless/mac80211_hwsim.c44
1 files changed, 43 insertions, 1 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 0dbda8dfbd99..00ffe6dd435e 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -32,6 +32,10 @@ static int radios = 2;
module_param(radios, int, 0444);
MODULE_PARM_DESC(radios, "Number of simulated radios");
+static bool fake_hw_scan;
+module_param(fake_hw_scan, bool, 0444);
+MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
+
/**
* enum hwsim_regtest - the type of regulatory tests we offer
*
@@ -908,8 +912,43 @@ static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
*/
}
+struct hw_scan_done {
+ struct delayed_work w;
+ struct ieee80211_hw *hw;
+};
-static const struct ieee80211_ops mac80211_hwsim_ops =
+static void hw_scan_done(struct work_struct *work)
+{
+ struct hw_scan_done *hsd =
+ container_of(work, struct hw_scan_done, w.work);
+
+ ieee80211_scan_completed(hsd->hw, false);
+ kfree(hsd);
+}
+
+static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
+ struct cfg80211_scan_request *req)
+{
+ struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
+ int i;
+
+ if (!hsd)
+ return -ENOMEM;
+
+ hsd->hw = hw;
+ INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
+
+ printk(KERN_DEBUG "hwsim scan request\n");
+ for (i = 0; i < req->n_channels; i++)
+ printk(KERN_DEBUG "hwsim scan freq %d\n",
+ req->channels[i]->center_freq);
+
+ ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
+
+ return 0;
+}
+
+static struct ieee80211_ops mac80211_hwsim_ops =
{
.tx = mac80211_hwsim_tx,
.start = mac80211_hwsim_start,
@@ -1119,6 +1158,9 @@ static int __init init_mac80211_hwsim(void)
if (radios < 1 || radios > 100)
return -EINVAL;
+ if (fake_hw_scan)
+ mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
+
spin_lock_init(&hwsim_radio_lock);
INIT_LIST_HEAD(&hwsim_radios);