Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-06 20:21:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

mac80211_hwsim: add fake hw scan handler

Browse Source 
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>
This commit is contained in:
Johannes Berg 2010-02-03 10:47:55 +01:00 committed by John W. Linville
parent 6e7e6213e4
commit 690680360c
1 changed files with 43 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
drivers/net/wireless/mac80211_hwsim.c
View File

@ -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);