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Commit 38ed5048 authored by Johannes Berg's avatar Johannes Berg
Browse files

mac80211_hwsim: prepare for different channel support 



Prepare the code to support, in theory, different devices
with a different number of channels supported. Right now
this doesn't really change anything, but will allow for
dynamic device registration in the future.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent cf7a6b2d

drivers/net/wireless/mac80211_hwsim.c

+36 −31
Original line number Diff line number Diff line
@@ -332,8 +332,10 @@ struct mac80211_hwsim_data { 
	struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];

	struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];

	struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];

	struct ieee80211_iface_combination if_combination;



	struct mac_address addresses[2];

	int channels;



	struct ieee80211_channel *tmp_chan;

	struct delayed_work roc_done;
@@ -878,7 +880,7 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw, 
		return;

	}



	if (channels == 1) {

	if (data->channels == 1) {

		channel = data->channel;

	} else if (txi->hw_queue == 4) {

		channel = data->tmp_chan;
@@ -1141,7 +1143,7 @@ static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed) 


	data->channel = conf->chandef.chan;



	WARN_ON(data->channel && channels > 1);

	WARN_ON(data->channel && data->channels > 1);



	data->power_level = conf->power_level;

	if (!data->started || !data->beacon_int)
@@ -1700,8 +1702,7 @@ static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw, 
	hwsim_check_chanctx_magic(ctx);

}



static struct ieee80211_ops mac80211_hwsim_ops =

{

static const struct ieee80211_ops mac80211_hwsim_ops = {

	.tx = mac80211_hwsim_tx,

	.start = mac80211_hwsim_start,

	.stop = mac80211_hwsim_stop,
@@ -1726,6 +1727,7 @@ static struct ieee80211_ops mac80211_hwsim_ops = 
	.set_tsf = mac80211_hwsim_set_tsf,

};



static struct ieee80211_ops mac80211_hwsim_mchan_ops;



static void mac80211_hwsim_free(void)

{
@@ -2206,7 +2208,7 @@ static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = { 
	{ .max = 8, .types = BIT(NL80211_IFTYPE_AP) },

};



static struct ieee80211_iface_combination hwsim_if_comb[] = {

static const struct ieee80211_iface_combination hwsim_if_comb[] = {

	{

		.limits = hwsim_if_limits,

		.n_limits = ARRAY_SIZE(hwsim_if_limits),
@@ -2233,6 +2235,7 @@ static int __init init_mac80211_hwsim(void) 
	struct mac80211_hwsim_data *data;

	struct ieee80211_hw *hw;

	enum ieee80211_band band;

	const struct ieee80211_ops *ops;



	if (radios < 1 || radios > 100)

		return -EINVAL;
@@ -2240,28 +2243,20 @@ static int __init init_mac80211_hwsim(void) 
	if (channels < 1)

		return -EINVAL;



	if (channels > 1) {

		hwsim_if_comb[0].num_different_channels = channels;

		mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;

		mac80211_hwsim_ops.cancel_hw_scan =

			mac80211_hwsim_cancel_hw_scan;

		mac80211_hwsim_ops.sw_scan_start = NULL;

		mac80211_hwsim_ops.sw_scan_complete = NULL;

		mac80211_hwsim_ops.remain_on_channel =

			mac80211_hwsim_roc;

		mac80211_hwsim_ops.cancel_remain_on_channel =

			mac80211_hwsim_croc;

		mac80211_hwsim_ops.add_chanctx =

			mac80211_hwsim_add_chanctx;

		mac80211_hwsim_ops.remove_chanctx =

			mac80211_hwsim_remove_chanctx;

		mac80211_hwsim_ops.change_chanctx =

			mac80211_hwsim_change_chanctx;

		mac80211_hwsim_ops.assign_vif_chanctx =

	mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;

	mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;

	mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;

	mac80211_hwsim_mchan_ops.sw_scan_start = NULL;

	mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;

	mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;

	mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;

	mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;

	mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;

	mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;

	mac80211_hwsim_mchan_ops.assign_vif_chanctx =

		mac80211_hwsim_assign_vif_chanctx;

		mac80211_hwsim_ops.unassign_vif_chanctx =

	mac80211_hwsim_mchan_ops.unassign_vif_chanctx =

		mac80211_hwsim_unassign_vif_chanctx;

	}



	spin_lock_init(&hwsim_radio_lock);

	INIT_LIST_HEAD(&hwsim_radios);
@@ -2282,7 +2277,10 @@ static int __init init_mac80211_hwsim(void) 
	for (i = 0; i < radios; i++) {

		printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",

		       i);

		hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);

		ops = &mac80211_hwsim_ops;

		if (channels > 1)

			ops = &mac80211_hwsim_mchan_ops;

		hw = ieee80211_alloc_hw(sizeof(*data), ops);

		if (!hw) {

			printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "

			       "failed\n");
@@ -2321,15 +2319,22 @@ static int __init init_mac80211_hwsim(void) 
		hw->wiphy->n_addresses = 2;

		hw->wiphy->addresses = data->addresses;



		hw->wiphy->iface_combinations = hwsim_if_comb;

		hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);

		data->channels = channels;



		if (channels > 1) {

		if (data->channels > 1) {

			hw->wiphy->max_scan_ssids = 255;

			hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;

			hw->wiphy->max_remain_on_channel_duration = 1000;

			/* For channels > 1 DFS is not allowed */

			hw->wiphy->n_iface_combinations = 1;

			hw->wiphy->iface_combinations = &data->if_combination;

			data->if_combination = hwsim_if_comb[0];

			data->if_combination.num_different_channels =

				data->channels;

		} else {

			hw->wiphy->iface_combinations = hwsim_if_comb;

			hw->wiphy->n_iface_combinations =

				ARRAY_SIZE(hwsim_if_comb);

		}



		INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);