1/*
 2 * This file is part of wl18xx
 3 *
 4 * Copyright (C) 2011 Texas Instruments Inc.
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * version 2 as published by the Free Software Foundation.
 9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18 * 02110-1301 USA
19 *
20 */
21
22#include "../wlcore/cmd.h"
23#include "../wlcore/debug.h"
24#include "../wlcore/hw_ops.h"
25
26#include "cmd.h"
27
28int wl18xx_cmd_channel_switch(struct wl1271 *wl,
29			      struct wl12xx_vif *wlvif,
30			      struct ieee80211_channel_switch *ch_switch)
31{
32	struct wl18xx_cmd_channel_switch *cmd;
33	u32 supported_rates;
34	int ret;
35
36	wl1271_debug(DEBUG_ACX, "cmd channel switch");
37
38	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
39	if (!cmd) {
40		ret = -ENOMEM;
41		goto out;
42	}
43
44	cmd->role_id = wlvif->role_id;
45	cmd->channel = ch_switch->chandef.chan->hw_value;
46	cmd->switch_time = ch_switch->count;
47	cmd->stop_tx = ch_switch->block_tx;
48
49	switch (ch_switch->chandef.chan->band) {
50	case IEEE80211_BAND_2GHZ:
51		cmd->band = WLCORE_BAND_2_4GHZ;
52		break;
53	case IEEE80211_BAND_5GHZ:
54		cmd->band = WLCORE_BAND_5GHZ;
55		break;
56	default:
57		wl1271_error("invalid channel switch band: %d",
58			     ch_switch->chandef.chan->band);
59		ret = -EINVAL;
60		goto out_free;
61	}
62
63	supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
64			  wlcore_hw_sta_get_ap_rate_mask(wl, wlvif);
65	if (wlvif->p2p)
66		supported_rates &= ~CONF_TX_CCK_RATES;
67	cmd->local_supported_rates = cpu_to_le32(supported_rates);
68	cmd->channel_type = wlvif->channel_type;
69
70	ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0);
71	if (ret < 0) {
72		wl1271_error("failed to send channel switch command");
73		goto out_free;
74	}
75
76out_free:
77	kfree(cmd);
78out:
79	return ret;
80}