2010-09-05 16:48:55 -06:00
|
|
|
/*
|
|
|
|
* Atheros CARL9170 driver
|
|
|
|
*
|
|
|
|
* mac80211 interaction code
|
|
|
|
*
|
|
|
|
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
|
|
|
|
* Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License as published by
|
|
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
* (at your option) any later version.
|
|
|
|
*
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
* GNU General Public License for more details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
* along with this program; see the file COPYING. If not, see
|
|
|
|
* http://www.gnu.org/licenses/.
|
|
|
|
*
|
|
|
|
* This file incorporates work covered by the following copyright and
|
|
|
|
* permission notice:
|
|
|
|
* Copyright (c) 2007-2008 Atheros Communications, Inc.
|
|
|
|
*
|
|
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
|
|
* copyright notice and this permission notice appear in all copies.
|
|
|
|
*
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/etherdevice.h>
|
|
|
|
#include <linux/random.h>
|
|
|
|
#include <net/mac80211.h>
|
|
|
|
#include <net/cfg80211.h>
|
|
|
|
#include "hw.h"
|
|
|
|
#include "carl9170.h"
|
|
|
|
#include "cmd.h"
|
|
|
|
|
2011-12-19 07:08:01 -07:00
|
|
|
static bool modparam_nohwcrypt;
|
2010-09-05 16:48:55 -06:00
|
|
|
module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
|
|
|
|
MODULE_PARM_DESC(nohwcrypt, "Disable hardware crypto offload.");
|
|
|
|
|
|
|
|
int modparam_noht;
|
|
|
|
module_param_named(noht, modparam_noht, int, S_IRUGO);
|
|
|
|
MODULE_PARM_DESC(noht, "Disable MPDU aggregation.");
|
|
|
|
|
|
|
|
#define RATE(_bitrate, _hw_rate, _txpidx, _flags) { \
|
|
|
|
.bitrate = (_bitrate), \
|
|
|
|
.flags = (_flags), \
|
|
|
|
.hw_value = (_hw_rate) | (_txpidx) << 4, \
|
|
|
|
}
|
|
|
|
|
|
|
|
struct ieee80211_rate __carl9170_ratetable[] = {
|
|
|
|
RATE(10, 0, 0, 0),
|
|
|
|
RATE(20, 1, 1, IEEE80211_RATE_SHORT_PREAMBLE),
|
|
|
|
RATE(55, 2, 2, IEEE80211_RATE_SHORT_PREAMBLE),
|
|
|
|
RATE(110, 3, 3, IEEE80211_RATE_SHORT_PREAMBLE),
|
|
|
|
RATE(60, 0xb, 0, 0),
|
|
|
|
RATE(90, 0xf, 0, 0),
|
|
|
|
RATE(120, 0xa, 0, 0),
|
|
|
|
RATE(180, 0xe, 0, 0),
|
|
|
|
RATE(240, 0x9, 0, 0),
|
|
|
|
RATE(360, 0xd, 1, 0),
|
|
|
|
RATE(480, 0x8, 2, 0),
|
|
|
|
RATE(540, 0xc, 3, 0),
|
|
|
|
};
|
|
|
|
#undef RATE
|
|
|
|
|
|
|
|
#define carl9170_g_ratetable (__carl9170_ratetable + 0)
|
|
|
|
#define carl9170_g_ratetable_size 12
|
|
|
|
#define carl9170_a_ratetable (__carl9170_ratetable + 4)
|
|
|
|
#define carl9170_a_ratetable_size 8
|
|
|
|
|
|
|
|
/*
|
|
|
|
* NB: The hw_value is used as an index into the carl9170_phy_freq_params
|
|
|
|
* array in phy.c so that we don't have to do frequency lookups!
|
|
|
|
*/
|
|
|
|
#define CHAN(_freq, _idx) { \
|
|
|
|
.center_freq = (_freq), \
|
|
|
|
.hw_value = (_idx), \
|
|
|
|
.max_power = 18, /* XXX */ \
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct ieee80211_channel carl9170_2ghz_chantable[] = {
|
|
|
|
CHAN(2412, 0),
|
|
|
|
CHAN(2417, 1),
|
|
|
|
CHAN(2422, 2),
|
|
|
|
CHAN(2427, 3),
|
|
|
|
CHAN(2432, 4),
|
|
|
|
CHAN(2437, 5),
|
|
|
|
CHAN(2442, 6),
|
|
|
|
CHAN(2447, 7),
|
|
|
|
CHAN(2452, 8),
|
|
|
|
CHAN(2457, 9),
|
|
|
|
CHAN(2462, 10),
|
|
|
|
CHAN(2467, 11),
|
|
|
|
CHAN(2472, 12),
|
|
|
|
CHAN(2484, 13),
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct ieee80211_channel carl9170_5ghz_chantable[] = {
|
|
|
|
CHAN(4920, 14),
|
|
|
|
CHAN(4940, 15),
|
|
|
|
CHAN(4960, 16),
|
|
|
|
CHAN(4980, 17),
|
|
|
|
CHAN(5040, 18),
|
|
|
|
CHAN(5060, 19),
|
|
|
|
CHAN(5080, 20),
|
|
|
|
CHAN(5180, 21),
|
|
|
|
CHAN(5200, 22),
|
|
|
|
CHAN(5220, 23),
|
|
|
|
CHAN(5240, 24),
|
|
|
|
CHAN(5260, 25),
|
|
|
|
CHAN(5280, 26),
|
|
|
|
CHAN(5300, 27),
|
|
|
|
CHAN(5320, 28),
|
|
|
|
CHAN(5500, 29),
|
|
|
|
CHAN(5520, 30),
|
|
|
|
CHAN(5540, 31),
|
|
|
|
CHAN(5560, 32),
|
|
|
|
CHAN(5580, 33),
|
|
|
|
CHAN(5600, 34),
|
|
|
|
CHAN(5620, 35),
|
|
|
|
CHAN(5640, 36),
|
|
|
|
CHAN(5660, 37),
|
|
|
|
CHAN(5680, 38),
|
|
|
|
CHAN(5700, 39),
|
|
|
|
CHAN(5745, 40),
|
|
|
|
CHAN(5765, 41),
|
|
|
|
CHAN(5785, 42),
|
|
|
|
CHAN(5805, 43),
|
|
|
|
CHAN(5825, 44),
|
|
|
|
CHAN(5170, 45),
|
|
|
|
CHAN(5190, 46),
|
|
|
|
CHAN(5210, 47),
|
|
|
|
CHAN(5230, 48),
|
|
|
|
};
|
|
|
|
#undef CHAN
|
|
|
|
|
|
|
|
#define CARL9170_HT_CAP \
|
|
|
|
{ \
|
|
|
|
.ht_supported = true, \
|
|
|
|
.cap = IEEE80211_HT_CAP_MAX_AMSDU | \
|
|
|
|
IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
|
|
|
|
IEEE80211_HT_CAP_SGI_40 | \
|
|
|
|
IEEE80211_HT_CAP_DSSSCCK40 | \
|
|
|
|
IEEE80211_HT_CAP_SM_PS, \
|
|
|
|
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, \
|
|
|
|
.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, \
|
|
|
|
.mcs = { \
|
|
|
|
.rx_mask = { 0xff, 0xff, 0, 0, 0x1, 0, 0, 0, 0, 0, }, \
|
|
|
|
.rx_highest = cpu_to_le16(300), \
|
|
|
|
.tx_params = IEEE80211_HT_MCS_TX_DEFINED, \
|
|
|
|
}, \
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct ieee80211_supported_band carl9170_band_2GHz = {
|
|
|
|
.channels = carl9170_2ghz_chantable,
|
|
|
|
.n_channels = ARRAY_SIZE(carl9170_2ghz_chantable),
|
|
|
|
.bitrates = carl9170_g_ratetable,
|
|
|
|
.n_bitrates = carl9170_g_ratetable_size,
|
|
|
|
.ht_cap = CARL9170_HT_CAP,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct ieee80211_supported_band carl9170_band_5GHz = {
|
|
|
|
.channels = carl9170_5ghz_chantable,
|
|
|
|
.n_channels = ARRAY_SIZE(carl9170_5ghz_chantable),
|
|
|
|
.bitrates = carl9170_a_ratetable,
|
|
|
|
.n_bitrates = carl9170_a_ratetable_size,
|
|
|
|
.ht_cap = CARL9170_HT_CAP,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void carl9170_ampdu_gc(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
struct carl9170_sta_tid *tid_info;
|
|
|
|
LIST_HEAD(tid_gc);
|
|
|
|
|
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(tid_info, &ar->tx_ampdu_list, list) {
|
|
|
|
spin_lock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
if (tid_info->state == CARL9170_TID_STATE_SHUTDOWN) {
|
|
|
|
tid_info->state = CARL9170_TID_STATE_KILLED;
|
|
|
|
list_del_rcu(&tid_info->list);
|
|
|
|
ar->tx_ampdu_list_len--;
|
|
|
|
list_add_tail(&tid_info->tmp_list, &tid_gc);
|
|
|
|
}
|
|
|
|
spin_unlock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
|
|
|
|
}
|
|
|
|
rcu_assign_pointer(ar->tx_ampdu_iter, tid_info);
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
synchronize_rcu();
|
|
|
|
|
|
|
|
while (!list_empty(&tid_gc)) {
|
|
|
|
struct sk_buff *skb;
|
|
|
|
tid_info = list_first_entry(&tid_gc, struct carl9170_sta_tid,
|
|
|
|
tmp_list);
|
|
|
|
|
|
|
|
while ((skb = __skb_dequeue(&tid_info->queue)))
|
|
|
|
carl9170_tx_status(ar, skb, false);
|
|
|
|
|
|
|
|
list_del_init(&tid_info->tmp_list);
|
|
|
|
kfree(tid_info);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_flush(struct ar9170 *ar, bool drop_queued)
|
|
|
|
{
|
|
|
|
if (drop_queued) {
|
|
|
|
int i;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* We can only drop frames which have not been uploaded
|
|
|
|
* to the device yet.
|
|
|
|
*/
|
|
|
|
|
|
|
|
for (i = 0; i < ar->hw->queues; i++) {
|
|
|
|
struct sk_buff *skb;
|
|
|
|
|
2010-09-26 14:49:34 -06:00
|
|
|
while ((skb = skb_dequeue(&ar->tx_pending[i]))) {
|
|
|
|
struct ieee80211_tx_info *info;
|
|
|
|
|
|
|
|
info = IEEE80211_SKB_CB(skb);
|
|
|
|
if (info->flags & IEEE80211_TX_CTL_AMPDU)
|
|
|
|
atomic_dec(&ar->tx_ampdu_upload);
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
carl9170_tx_status(ar, skb, false);
|
2010-09-26 14:49:34 -06:00
|
|
|
}
|
2010-09-05 16:48:55 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Wait for all other outstanding frames to timeout. */
|
|
|
|
if (atomic_read(&ar->tx_total_queued))
|
|
|
|
WARN_ON(wait_for_completion_timeout(&ar->tx_flush, HZ) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_flush_ba(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
struct sk_buff_head free;
|
|
|
|
struct carl9170_sta_tid *tid_info;
|
|
|
|
struct sk_buff *skb;
|
|
|
|
|
|
|
|
__skb_queue_head_init(&free);
|
|
|
|
|
|
|
|
rcu_read_lock();
|
|
|
|
spin_lock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
list_for_each_entry_rcu(tid_info, &ar->tx_ampdu_list, list) {
|
|
|
|
if (tid_info->state > CARL9170_TID_STATE_SUSPEND) {
|
|
|
|
tid_info->state = CARL9170_TID_STATE_SUSPEND;
|
|
|
|
|
|
|
|
spin_lock(&tid_info->lock);
|
|
|
|
while ((skb = __skb_dequeue(&tid_info->queue)))
|
|
|
|
__skb_queue_tail(&free, skb);
|
|
|
|
spin_unlock(&tid_info->lock);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
spin_unlock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
while ((skb = __skb_dequeue(&free)))
|
|
|
|
carl9170_tx_status(ar, skb, false);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_zap_queues(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
struct carl9170_vif_info *cvif;
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
carl9170_ampdu_gc(ar);
|
|
|
|
|
|
|
|
carl9170_flush_ba(ar);
|
|
|
|
carl9170_flush(ar, true);
|
|
|
|
|
|
|
|
for (i = 0; i < ar->hw->queues; i++) {
|
|
|
|
spin_lock_bh(&ar->tx_status[i].lock);
|
|
|
|
while (!skb_queue_empty(&ar->tx_status[i])) {
|
|
|
|
struct sk_buff *skb;
|
|
|
|
|
|
|
|
skb = skb_peek(&ar->tx_status[i]);
|
|
|
|
carl9170_tx_get_skb(skb);
|
|
|
|
spin_unlock_bh(&ar->tx_status[i].lock);
|
|
|
|
carl9170_tx_drop(ar, skb);
|
|
|
|
spin_lock_bh(&ar->tx_status[i].lock);
|
|
|
|
carl9170_tx_put_skb(skb);
|
|
|
|
}
|
|
|
|
spin_unlock_bh(&ar->tx_status[i].lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
BUILD_BUG_ON(CARL9170_NUM_TX_LIMIT_SOFT < 1);
|
|
|
|
BUILD_BUG_ON(CARL9170_NUM_TX_LIMIT_HARD < CARL9170_NUM_TX_LIMIT_SOFT);
|
|
|
|
BUILD_BUG_ON(CARL9170_NUM_TX_LIMIT_HARD >= CARL9170_BAW_BITS);
|
|
|
|
|
|
|
|
/* reinitialize queues statistics */
|
|
|
|
memset(&ar->tx_stats, 0, sizeof(ar->tx_stats));
|
|
|
|
for (i = 0; i < ar->hw->queues; i++)
|
|
|
|
ar->tx_stats[i].limit = CARL9170_NUM_TX_LIMIT_HARD;
|
|
|
|
|
|
|
|
for (i = 0; i < DIV_ROUND_UP(ar->fw.mem_blocks, BITS_PER_LONG); i++)
|
|
|
|
ar->mem_bitmap[i] = 0;
|
|
|
|
|
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(cvif, &ar->vif_list, list) {
|
|
|
|
spin_lock_bh(&ar->beacon_lock);
|
|
|
|
dev_kfree_skb_any(cvif->beacon);
|
|
|
|
cvif->beacon = NULL;
|
|
|
|
spin_unlock_bh(&ar->beacon_lock);
|
|
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
atomic_set(&ar->tx_ampdu_upload, 0);
|
|
|
|
atomic_set(&ar->tx_ampdu_scheduler, 0);
|
|
|
|
atomic_set(&ar->tx_total_pending, 0);
|
|
|
|
atomic_set(&ar->tx_total_queued, 0);
|
|
|
|
atomic_set(&ar->mem_free_blocks, ar->fw.mem_blocks);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define CARL9170_FILL_QUEUE(queue, ai_fs, cwmin, cwmax, _txop) \
|
|
|
|
do { \
|
|
|
|
queue.aifs = ai_fs; \
|
|
|
|
queue.cw_min = cwmin; \
|
|
|
|
queue.cw_max = cwmax; \
|
|
|
|
queue.txop = _txop; \
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
static int carl9170_op_start(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
int err, i;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
|
|
|
|
carl9170_zap_queues(ar);
|
|
|
|
|
|
|
|
/* reset QoS defaults */
|
2011-07-01 07:28:22 -06:00
|
|
|
CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_VO], 2, 3, 7, 47);
|
|
|
|
CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_VI], 2, 7, 15, 94);
|
|
|
|
CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_BE], 3, 15, 1023, 0);
|
|
|
|
CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_BK], 7, 15, 1023, 0);
|
|
|
|
CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_SPECIAL], 2, 3, 7, 0);
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
ar->current_factor = ar->current_density = -1;
|
|
|
|
/* "The first key is unique." */
|
|
|
|
ar->usedkeys = 1;
|
|
|
|
ar->filter_state = 0;
|
|
|
|
ar->ps.last_action = jiffies;
|
|
|
|
ar->ps.last_slept = jiffies;
|
|
|
|
ar->erp_mode = CARL9170_ERP_AUTO;
|
|
|
|
ar->rx_software_decryption = false;
|
|
|
|
ar->disable_offload = false;
|
|
|
|
|
|
|
|
for (i = 0; i < ar->hw->queues; i++) {
|
|
|
|
ar->queue_stop_timeout[i] = jiffies;
|
|
|
|
ar->max_queue_stop_timeout[i] = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
atomic_set(&ar->mem_allocs, 0);
|
|
|
|
|
|
|
|
err = carl9170_usb_open(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
err = carl9170_init_mac(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
err = carl9170_set_qos(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
2010-09-28 15:00:59 -06:00
|
|
|
if (ar->fw.rx_filter) {
|
|
|
|
err = carl9170_rx_filter(ar, CARL9170_RX_FILTER_OTHER_RA |
|
|
|
|
CARL9170_RX_FILTER_CTL_OTHER | CARL9170_RX_FILTER_BAD);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
err = carl9170_write_reg(ar, AR9170_MAC_REG_DMA_TRIGGER,
|
|
|
|
AR9170_DMA_TRIGGER_RXQ);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
/* Clear key-cache */
|
|
|
|
for (i = 0; i < AR9170_CAM_MAX_USER + 4; i++) {
|
|
|
|
err = carl9170_upload_key(ar, i, NULL, AR9170_ENC_ALG_NONE,
|
|
|
|
0, NULL, 0);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
err = carl9170_upload_key(ar, i, NULL, AR9170_ENC_ALG_NONE,
|
|
|
|
1, NULL, 0);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (i < AR9170_CAM_MAX_USER) {
|
|
|
|
err = carl9170_disable_key(ar, i);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
carl9170_set_state_when(ar, CARL9170_IDLE, CARL9170_STARTED);
|
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
ieee80211_queue_delayed_work(ar->hw, &ar->stat_work,
|
|
|
|
round_jiffies(msecs_to_jiffies(CARL9170_STAT_WORK)));
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
ieee80211_wake_queues(ar->hw);
|
|
|
|
err = 0;
|
|
|
|
|
|
|
|
out:
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_cancel_worker(struct ar9170 *ar)
|
|
|
|
{
|
2011-08-15 11:50:48 -06:00
|
|
|
cancel_delayed_work_sync(&ar->stat_work);
|
2010-09-05 16:48:55 -06:00
|
|
|
cancel_delayed_work_sync(&ar->tx_janitor);
|
|
|
|
#ifdef CONFIG_CARL9170_LEDS
|
|
|
|
cancel_delayed_work_sync(&ar->led_work);
|
|
|
|
#endif /* CONFIG_CARL9170_LEDS */
|
|
|
|
cancel_work_sync(&ar->ps_work);
|
2010-10-29 15:26:13 -06:00
|
|
|
cancel_work_sync(&ar->ping_work);
|
2010-09-05 16:48:55 -06:00
|
|
|
cancel_work_sync(&ar->ampdu_work);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_op_stop(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
|
|
|
|
carl9170_set_state_when(ar, CARL9170_STARTED, CARL9170_IDLE);
|
|
|
|
|
|
|
|
ieee80211_stop_queues(ar->hw);
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
if (IS_ACCEPTING_CMD(ar)) {
|
2011-11-23 00:09:32 -07:00
|
|
|
RCU_INIT_POINTER(ar->beacon_iter, NULL);
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
carl9170_led_set_state(ar, 0);
|
|
|
|
|
|
|
|
/* stop DMA */
|
|
|
|
carl9170_write_reg(ar, AR9170_MAC_REG_DMA_TRIGGER, 0);
|
|
|
|
carl9170_usb_stop(ar);
|
|
|
|
}
|
|
|
|
|
|
|
|
carl9170_zap_queues(ar);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
|
|
|
|
carl9170_cancel_worker(ar);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_restart_work(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = container_of(work, struct ar9170,
|
|
|
|
restart_work);
|
|
|
|
int err;
|
|
|
|
|
|
|
|
ar->usedkeys = 0;
|
|
|
|
ar->filter_state = 0;
|
|
|
|
carl9170_cancel_worker(ar);
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
err = carl9170_usb_restart(ar);
|
|
|
|
if (net_ratelimit()) {
|
|
|
|
if (err) {
|
|
|
|
dev_err(&ar->udev->dev, "Failed to restart device "
|
|
|
|
" (%d).\n", err);
|
|
|
|
} else {
|
|
|
|
dev_info(&ar->udev->dev, "device restarted "
|
|
|
|
"successfully.\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
carl9170_zap_queues(ar);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
if (!err) {
|
|
|
|
ar->restart_counter++;
|
|
|
|
atomic_set(&ar->pending_restarts, 0);
|
|
|
|
|
|
|
|
ieee80211_restart_hw(ar->hw);
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* The reset was unsuccessful and the device seems to
|
|
|
|
* be dead. But there's still one option: a low-level
|
|
|
|
* usb subsystem reset...
|
|
|
|
*/
|
|
|
|
|
|
|
|
carl9170_usb_reset(ar);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void carl9170_restart(struct ar9170 *ar, const enum carl9170_restart_reasons r)
|
|
|
|
{
|
|
|
|
carl9170_set_state_when(ar, CARL9170_STARTED, CARL9170_IDLE);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Sometimes, an error can trigger several different reset events.
|
|
|
|
* By ignoring these *surplus* reset events, the device won't be
|
|
|
|
* killed again, right after it has recovered.
|
|
|
|
*/
|
|
|
|
if (atomic_inc_return(&ar->pending_restarts) > 1) {
|
|
|
|
dev_dbg(&ar->udev->dev, "ignoring restart (%d)\n", r);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
ieee80211_stop_queues(ar->hw);
|
|
|
|
|
|
|
|
dev_err(&ar->udev->dev, "restart device (%d)\n", r);
|
|
|
|
|
|
|
|
if (!WARN_ON(r == CARL9170_RR_NO_REASON) ||
|
|
|
|
!WARN_ON(r >= __CARL9170_RR_LAST))
|
|
|
|
ar->last_reason = r;
|
|
|
|
|
|
|
|
if (!ar->registered)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (IS_ACCEPTING_CMD(ar) && !ar->needs_full_reset)
|
|
|
|
ieee80211_queue_work(ar->hw, &ar->restart_work);
|
|
|
|
else
|
|
|
|
carl9170_usb_reset(ar);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* At this point, the device instance might have vanished/disabled.
|
|
|
|
* So, don't put any code which access the ar9170 struct
|
|
|
|
* without proper protection.
|
|
|
|
*/
|
|
|
|
}
|
|
|
|
|
2010-10-29 15:26:13 -06:00
|
|
|
static void carl9170_ping_work(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = container_of(work, struct ar9170, ping_work);
|
|
|
|
int err;
|
|
|
|
|
|
|
|
if (!IS_STARTED(ar))
|
|
|
|
return;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
err = carl9170_echo_test(ar, 0xdeadbeef);
|
|
|
|
if (err)
|
|
|
|
carl9170_restart(ar, CARL9170_RR_UNRESPONSIVE_DEVICE);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
}
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
static int carl9170_init_interface(struct ar9170 *ar,
|
|
|
|
struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct ath_common *common = &ar->common;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
if (!vif) {
|
|
|
|
WARN_ON_ONCE(IS_STARTED(ar));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(common->macaddr, vif->addr, ETH_ALEN);
|
|
|
|
|
|
|
|
if (modparam_nohwcrypt ||
|
|
|
|
((vif->type != NL80211_IFTYPE_STATION) &&
|
|
|
|
(vif->type != NL80211_IFTYPE_AP))) {
|
|
|
|
ar->rx_software_decryption = true;
|
|
|
|
ar->disable_offload = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = carl9170_set_operating_mode(ar);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_op_add_interface(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct carl9170_vif_info *vif_priv = (void *) vif->drv_priv;
|
|
|
|
struct ieee80211_vif *main_vif;
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
int vif_id = -1, err = 0;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
rcu_read_lock();
|
|
|
|
if (vif_priv->active) {
|
|
|
|
/*
|
|
|
|
* Skip the interface structure initialization,
|
|
|
|
* if the vif survived the _restart call.
|
|
|
|
*/
|
|
|
|
vif_id = vif_priv->id;
|
|
|
|
vif_priv->enable_beacon = false;
|
|
|
|
|
|
|
|
spin_lock_bh(&ar->beacon_lock);
|
|
|
|
dev_kfree_skb_any(vif_priv->beacon);
|
|
|
|
vif_priv->beacon = NULL;
|
|
|
|
spin_unlock_bh(&ar->beacon_lock);
|
|
|
|
|
|
|
|
goto init;
|
|
|
|
}
|
|
|
|
|
|
|
|
main_vif = carl9170_get_main_vif(ar);
|
|
|
|
|
|
|
|
if (main_vif) {
|
|
|
|
switch (main_vif->type) {
|
|
|
|
case NL80211_IFTYPE_STATION:
|
|
|
|
if (vif->type == NL80211_IFTYPE_STATION)
|
|
|
|
break;
|
|
|
|
|
|
|
|
err = -EBUSY;
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
goto unlock;
|
|
|
|
|
|
|
|
case NL80211_IFTYPE_AP:
|
|
|
|
if ((vif->type == NL80211_IFTYPE_STATION) ||
|
|
|
|
(vif->type == NL80211_IFTYPE_WDS) ||
|
|
|
|
(vif->type == NL80211_IFTYPE_AP))
|
|
|
|
break;
|
|
|
|
|
|
|
|
err = -EBUSY;
|
|
|
|
rcu_read_unlock();
|
|
|
|
goto unlock;
|
|
|
|
|
|
|
|
default:
|
|
|
|
rcu_read_unlock();
|
|
|
|
goto unlock;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
vif_id = bitmap_find_free_region(&ar->vif_bitmap, ar->fw.vif_num, 0);
|
|
|
|
|
|
|
|
if (vif_id < 0) {
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
err = -ENOSPC;
|
|
|
|
goto unlock;
|
|
|
|
}
|
|
|
|
|
|
|
|
BUG_ON(ar->vif_priv[vif_id].id != vif_id);
|
|
|
|
|
|
|
|
vif_priv->active = true;
|
|
|
|
vif_priv->id = vif_id;
|
|
|
|
vif_priv->enable_beacon = false;
|
|
|
|
ar->vifs++;
|
|
|
|
list_add_tail_rcu(&vif_priv->list, &ar->vif_list);
|
|
|
|
rcu_assign_pointer(ar->vif_priv[vif_id].vif, vif);
|
|
|
|
|
|
|
|
init:
|
|
|
|
if (carl9170_get_main_vif(ar) == vif) {
|
|
|
|
rcu_assign_pointer(ar->beacon_iter, vif_priv);
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
err = carl9170_init_interface(ar, vif);
|
|
|
|
if (err)
|
|
|
|
goto unlock;
|
|
|
|
} else {
|
|
|
|
rcu_read_unlock();
|
2010-10-23 07:02:02 -06:00
|
|
|
err = carl9170_mod_virtual_mac(ar, vif_id, vif->addr);
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
if (err)
|
|
|
|
goto unlock;
|
|
|
|
}
|
|
|
|
|
2011-01-22 16:18:28 -07:00
|
|
|
if (ar->fw.tx_seq_table) {
|
|
|
|
err = carl9170_write_reg(ar, ar->fw.tx_seq_table + vif_id * 4,
|
|
|
|
0);
|
|
|
|
if (err)
|
|
|
|
goto unlock;
|
|
|
|
}
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
unlock:
|
2010-11-20 05:15:27 -07:00
|
|
|
if (err && (vif_id >= 0)) {
|
2010-09-05 16:48:55 -06:00
|
|
|
vif_priv->active = false;
|
|
|
|
bitmap_release_region(&ar->vif_bitmap, vif_id, 0);
|
|
|
|
ar->vifs--;
|
2011-11-23 00:09:32 -07:00
|
|
|
RCU_INIT_POINTER(ar->vif_priv[vif_id].vif, NULL);
|
2010-09-05 16:48:55 -06:00
|
|
|
list_del_rcu(&vif_priv->list);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
synchronize_rcu();
|
|
|
|
} else {
|
|
|
|
if (ar->vifs > 1)
|
|
|
|
ar->ps.off_override |= PS_OFF_VIF;
|
|
|
|
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_op_remove_interface(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct carl9170_vif_info *vif_priv = (void *) vif->drv_priv;
|
|
|
|
struct ieee80211_vif *main_vif;
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
unsigned int id;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
|
|
|
|
if (WARN_ON_ONCE(!vif_priv->active))
|
|
|
|
goto unlock;
|
|
|
|
|
|
|
|
ar->vifs--;
|
|
|
|
|
|
|
|
rcu_read_lock();
|
|
|
|
main_vif = carl9170_get_main_vif(ar);
|
|
|
|
|
|
|
|
id = vif_priv->id;
|
|
|
|
|
|
|
|
vif_priv->active = false;
|
|
|
|
WARN_ON(vif_priv->enable_beacon);
|
|
|
|
vif_priv->enable_beacon = false;
|
|
|
|
list_del_rcu(&vif_priv->list);
|
2011-11-23 00:09:32 -07:00
|
|
|
RCU_INIT_POINTER(ar->vif_priv[id].vif, NULL);
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
if (vif == main_vif) {
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
if (ar->vifs) {
|
|
|
|
WARN_ON(carl9170_init_interface(ar,
|
|
|
|
carl9170_get_main_vif(ar)));
|
|
|
|
} else {
|
|
|
|
carl9170_set_operating_mode(ar);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
WARN_ON(carl9170_mod_virtual_mac(ar, id, NULL));
|
|
|
|
}
|
|
|
|
|
|
|
|
carl9170_update_beacon(ar, false);
|
|
|
|
carl9170_flush_cab(ar, id);
|
|
|
|
|
|
|
|
spin_lock_bh(&ar->beacon_lock);
|
|
|
|
dev_kfree_skb_any(vif_priv->beacon);
|
|
|
|
vif_priv->beacon = NULL;
|
|
|
|
spin_unlock_bh(&ar->beacon_lock);
|
|
|
|
|
|
|
|
bitmap_release_region(&ar->vif_bitmap, id, 0);
|
|
|
|
|
|
|
|
carl9170_set_beacon_timers(ar);
|
|
|
|
|
|
|
|
if (ar->vifs == 1)
|
|
|
|
ar->ps.off_override &= ~PS_OFF_VIF;
|
|
|
|
|
|
|
|
unlock:
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
|
|
|
|
synchronize_rcu();
|
|
|
|
}
|
|
|
|
|
|
|
|
void carl9170_ps_check(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
ieee80211_queue_work(ar->hw, &ar->ps_work);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* caller must hold ar->mutex */
|
|
|
|
static int carl9170_ps_update(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
bool ps = false;
|
|
|
|
int err = 0;
|
|
|
|
|
|
|
|
if (!ar->ps.off_override)
|
|
|
|
ps = (ar->hw->conf.flags & IEEE80211_CONF_PS);
|
|
|
|
|
|
|
|
if (ps != ar->ps.state) {
|
|
|
|
err = carl9170_powersave(ar, ps);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
if (ar->ps.state && !ps) {
|
|
|
|
ar->ps.sleep_ms = jiffies_to_msecs(jiffies -
|
|
|
|
ar->ps.last_action);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ps)
|
|
|
|
ar->ps.last_slept = jiffies;
|
|
|
|
|
|
|
|
ar->ps.last_action = jiffies;
|
|
|
|
ar->ps.state = ps;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_ps_work(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = container_of(work, struct ar9170,
|
|
|
|
ps_work);
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
if (IS_STARTED(ar))
|
|
|
|
WARN_ON_ONCE(carl9170_ps_update(ar) != 0);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
}
|
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
static int carl9170_update_survey(struct ar9170 *ar, bool flush, bool noise)
|
|
|
|
{
|
|
|
|
int err;
|
|
|
|
|
|
|
|
if (noise) {
|
|
|
|
err = carl9170_get_noisefloor(ar);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ar->fw.hw_counters) {
|
|
|
|
err = carl9170_collect_tally(ar);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (flush)
|
|
|
|
memset(&ar->tally, 0, sizeof(ar->tally));
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_stat_work(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = container_of(work, struct ar9170, stat_work.work);
|
|
|
|
int err;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
err = carl9170_update_survey(ar, false, true);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
|
|
|
|
if (err)
|
|
|
|
return;
|
|
|
|
|
|
|
|
ieee80211_queue_delayed_work(ar->hw, &ar->stat_work,
|
|
|
|
round_jiffies(msecs_to_jiffies(CARL9170_STAT_WORK)));
|
|
|
|
}
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
static int carl9170_op_config(struct ieee80211_hw *hw, u32 changed)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
int err = 0;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
|
|
|
|
/* TODO */
|
|
|
|
err = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_PS) {
|
|
|
|
err = carl9170_ps_update(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_SMPS) {
|
|
|
|
/* TODO */
|
|
|
|
err = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
|
|
|
|
/* adjust slot time for 5 GHz */
|
|
|
|
err = carl9170_set_slot_time(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
err = carl9170_update_survey(ar, true, false);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
err = carl9170_set_channel(ar, hw->conf.channel,
|
|
|
|
hw->conf.channel_type, CARL9170_RFI_NONE);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
err = carl9170_update_survey(ar, false, true);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
err = carl9170_set_dyn_sifs_ack(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
err = carl9170_set_rts_cts_rate(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2012-01-21 08:59:10 -07:00
|
|
|
if (changed & IEEE80211_CONF_CHANGE_POWER) {
|
|
|
|
err = carl9170_set_mac_tpc(ar, ar->hw->conf.channel);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
out:
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
static u64 carl9170_op_prepare_multicast(struct ieee80211_hw *hw,
|
|
|
|
struct netdev_hw_addr_list *mc_list)
|
|
|
|
{
|
|
|
|
struct netdev_hw_addr *ha;
|
|
|
|
u64 mchash;
|
|
|
|
|
|
|
|
/* always get broadcast frames */
|
|
|
|
mchash = 1ULL << (0xff >> 2);
|
|
|
|
|
|
|
|
netdev_hw_addr_list_for_each(ha, mc_list)
|
|
|
|
mchash |= 1ULL << (ha->addr[5] >> 2);
|
|
|
|
|
|
|
|
return mchash;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_op_configure_filter(struct ieee80211_hw *hw,
|
|
|
|
unsigned int changed_flags,
|
|
|
|
unsigned int *new_flags,
|
|
|
|
u64 multicast)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
|
|
|
|
/* mask supported flags */
|
2010-09-28 15:00:59 -06:00
|
|
|
*new_flags &= FIF_ALLMULTI | ar->rx_filter_caps;
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
if (!IS_ACCEPTING_CMD(ar))
|
|
|
|
return;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
|
|
|
|
ar->filter_state = *new_flags;
|
|
|
|
/*
|
|
|
|
* We can support more by setting the sniffer bit and
|
|
|
|
* then checking the error flags, later.
|
|
|
|
*/
|
|
|
|
|
2011-05-04 07:26:52 -06:00
|
|
|
if (*new_flags & FIF_ALLMULTI)
|
2010-09-05 16:48:55 -06:00
|
|
|
multicast = ~0ULL;
|
|
|
|
|
|
|
|
if (multicast != ar->cur_mc_hash)
|
|
|
|
WARN_ON(carl9170_update_multicast(ar, multicast));
|
|
|
|
|
|
|
|
if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) {
|
|
|
|
ar->sniffer_enabled = !!(*new_flags &
|
|
|
|
(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS));
|
|
|
|
|
|
|
|
WARN_ON(carl9170_set_operating_mode(ar));
|
|
|
|
}
|
|
|
|
|
2010-09-28 15:00:59 -06:00
|
|
|
if (ar->fw.rx_filter && changed_flags & ar->rx_filter_caps) {
|
|
|
|
u32 rx_filter = 0;
|
|
|
|
|
2012-07-07 13:13:59 -06:00
|
|
|
if (!ar->fw.ba_filter)
|
|
|
|
rx_filter |= CARL9170_RX_FILTER_CTL_OTHER;
|
|
|
|
|
2010-09-28 15:00:59 -06:00
|
|
|
if (!(*new_flags & (FIF_FCSFAIL | FIF_PLCPFAIL)))
|
|
|
|
rx_filter |= CARL9170_RX_FILTER_BAD;
|
|
|
|
|
|
|
|
if (!(*new_flags & FIF_CONTROL))
|
|
|
|
rx_filter |= CARL9170_RX_FILTER_CTL_OTHER;
|
|
|
|
|
|
|
|
if (!(*new_flags & FIF_PSPOLL))
|
|
|
|
rx_filter |= CARL9170_RX_FILTER_CTL_PSPOLL;
|
|
|
|
|
|
|
|
if (!(*new_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS))) {
|
|
|
|
rx_filter |= CARL9170_RX_FILTER_OTHER_RA;
|
|
|
|
rx_filter |= CARL9170_RX_FILTER_DECRY_FAIL;
|
|
|
|
}
|
|
|
|
|
|
|
|
WARN_ON(carl9170_rx_filter(ar, rx_filter));
|
|
|
|
}
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void carl9170_op_bss_info_changed(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
|
|
u32 changed)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
struct ath_common *common = &ar->common;
|
|
|
|
int err = 0;
|
|
|
|
struct carl9170_vif_info *vif_priv;
|
|
|
|
struct ieee80211_vif *main_vif;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
vif_priv = (void *) vif->drv_priv;
|
|
|
|
main_vif = carl9170_get_main_vif(ar);
|
|
|
|
if (WARN_ON(!main_vif))
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (changed & BSS_CHANGED_BEACON_ENABLED) {
|
|
|
|
struct carl9170_vif_info *iter;
|
|
|
|
int i = 0;
|
|
|
|
|
|
|
|
vif_priv->enable_beacon = bss_conf->enable_beacon;
|
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(iter, &ar->vif_list, list) {
|
|
|
|
if (iter->active && iter->enable_beacon)
|
|
|
|
i++;
|
|
|
|
|
|
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
ar->beacon_enabled = i;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (changed & BSS_CHANGED_BEACON) {
|
|
|
|
err = carl9170_update_beacon(ar, false);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON |
|
|
|
|
BSS_CHANGED_BEACON_INT)) {
|
|
|
|
|
|
|
|
if (main_vif != vif) {
|
|
|
|
bss_conf->beacon_int = main_vif->bss_conf.beacon_int;
|
|
|
|
bss_conf->dtim_period = main_vif->bss_conf.dtim_period;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Therefore a hard limit for the broadcast traffic should
|
|
|
|
* prevent false alarms.
|
|
|
|
*/
|
|
|
|
if (vif->type != NL80211_IFTYPE_STATION &&
|
|
|
|
(bss_conf->beacon_int * bss_conf->dtim_period >=
|
|
|
|
(CARL9170_QUEUE_STUCK_TIMEOUT / 2))) {
|
|
|
|
err = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = carl9170_set_beacon_timers(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (changed & BSS_CHANGED_HT) {
|
|
|
|
/* TODO */
|
|
|
|
err = 0;
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (main_vif != vif)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The following settings can only be changed by the
|
|
|
|
* master interface.
|
|
|
|
*/
|
|
|
|
|
|
|
|
if (changed & BSS_CHANGED_BSSID) {
|
|
|
|
memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
|
|
|
|
err = carl9170_set_operating_mode(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (changed & BSS_CHANGED_ASSOC) {
|
|
|
|
ar->common.curaid = bss_conf->aid;
|
|
|
|
err = carl9170_set_beacon_timers(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (changed & BSS_CHANGED_ERP_SLOT) {
|
|
|
|
err = carl9170_set_slot_time(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (changed & BSS_CHANGED_BASIC_RATES) {
|
|
|
|
err = carl9170_set_mac_rates(ar);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
WARN_ON_ONCE(err && IS_STARTED(ar));
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
}
|
|
|
|
|
2011-09-21 05:06:11 -06:00
|
|
|
static u64 carl9170_op_get_tsf(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif)
|
2010-09-05 16:48:55 -06:00
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
struct carl9170_tsf_rsp tsf;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
err = carl9170_exec_cmd(ar, CARL9170_CMD_READ_TSF,
|
|
|
|
0, NULL, sizeof(tsf), &tsf);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
if (WARN_ON(err))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return le64_to_cpu(tsf.tsf_64);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_sta *sta,
|
|
|
|
struct ieee80211_key_conf *key)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
int err = 0, i;
|
|
|
|
u8 ktype;
|
|
|
|
|
|
|
|
if (ar->disable_offload || !vif)
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* We have to fall back to software encryption, whenever
|
|
|
|
* the user choose to participates in an IBSS or is connected
|
|
|
|
* to more than one network.
|
|
|
|
*
|
|
|
|
* This is very unfortunate, because some machines cannot handle
|
|
|
|
* the high througput speed in 802.11n networks.
|
|
|
|
*/
|
|
|
|
|
2011-08-23 14:44:32 -06:00
|
|
|
if (!is_main_vif(ar, vif)) {
|
|
|
|
mutex_lock(&ar->mutex);
|
2010-09-05 16:48:55 -06:00
|
|
|
goto err_softw;
|
2011-08-23 14:44:32 -06:00
|
|
|
}
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
/*
|
|
|
|
* While the hardware supports *catch-all* key, for offloading
|
|
|
|
* group-key en-/de-cryption. The way of how the hardware
|
|
|
|
* decides which keyId maps to which key, remains a mystery...
|
|
|
|
*/
|
|
|
|
if ((vif->type != NL80211_IFTYPE_STATION &&
|
|
|
|
vif->type != NL80211_IFTYPE_ADHOC) &&
|
|
|
|
!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
|
|
|
|
switch (key->cipher) {
|
|
|
|
case WLAN_CIPHER_SUITE_WEP40:
|
|
|
|
ktype = AR9170_ENC_ALG_WEP64;
|
|
|
|
break;
|
|
|
|
case WLAN_CIPHER_SUITE_WEP104:
|
|
|
|
ktype = AR9170_ENC_ALG_WEP128;
|
|
|
|
break;
|
|
|
|
case WLAN_CIPHER_SUITE_TKIP:
|
|
|
|
ktype = AR9170_ENC_ALG_TKIP;
|
|
|
|
break;
|
|
|
|
case WLAN_CIPHER_SUITE_CCMP:
|
|
|
|
ktype = AR9170_ENC_ALG_AESCCMP;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
if (cmd == SET_KEY) {
|
|
|
|
if (!IS_STARTED(ar)) {
|
|
|
|
err = -EOPNOTSUPP;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
|
|
|
|
sta = NULL;
|
|
|
|
|
|
|
|
i = 64 + key->keyidx;
|
|
|
|
} else {
|
|
|
|
for (i = 0; i < 64; i++)
|
|
|
|
if (!(ar->usedkeys & BIT(i)))
|
|
|
|
break;
|
|
|
|
if (i == 64)
|
|
|
|
goto err_softw;
|
|
|
|
}
|
|
|
|
|
|
|
|
key->hw_key_idx = i;
|
|
|
|
|
|
|
|
err = carl9170_upload_key(ar, i, sta ? sta->addr : NULL,
|
|
|
|
ktype, 0, key->key,
|
|
|
|
min_t(u8, 16, key->keylen));
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
|
|
|
|
err = carl9170_upload_key(ar, i, sta ? sta->addr :
|
|
|
|
NULL, ktype, 1,
|
|
|
|
key->key + 16, 16);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* hardware is not capable generating MMIC
|
|
|
|
* of fragmented frames!
|
|
|
|
*/
|
|
|
|
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i < 64)
|
|
|
|
ar->usedkeys |= BIT(i);
|
|
|
|
|
|
|
|
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
|
|
} else {
|
|
|
|
if (!IS_STARTED(ar)) {
|
|
|
|
/* The device is gone... together with the key ;-) */
|
|
|
|
err = 0;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (key->hw_key_idx < 64) {
|
|
|
|
ar->usedkeys &= ~BIT(key->hw_key_idx);
|
|
|
|
} else {
|
|
|
|
err = carl9170_upload_key(ar, key->hw_key_idx, NULL,
|
|
|
|
AR9170_ENC_ALG_NONE, 0,
|
|
|
|
NULL, 0);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
|
|
|
|
err = carl9170_upload_key(ar, key->hw_key_idx,
|
|
|
|
NULL,
|
|
|
|
AR9170_ENC_ALG_NONE,
|
|
|
|
1, NULL, 0);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
err = carl9170_disable_key(ar, key->hw_key_idx);
|
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
return err;
|
|
|
|
|
|
|
|
err_softw:
|
|
|
|
if (!ar->rx_software_decryption) {
|
|
|
|
ar->rx_software_decryption = true;
|
|
|
|
carl9170_set_operating_mode(ar);
|
|
|
|
}
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
return -ENOSPC;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_op_sta_add(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_sta *sta)
|
|
|
|
{
|
|
|
|
struct carl9170_sta_info *sta_info = (void *) sta->drv_priv;
|
|
|
|
unsigned int i;
|
|
|
|
|
2011-04-24 09:44:19 -06:00
|
|
|
atomic_set(&sta_info->pending_frames, 0);
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
if (sta->ht_cap.ht_supported) {
|
|
|
|
if (sta->ht_cap.ampdu_density > 6) {
|
|
|
|
/*
|
|
|
|
* HW does support 16us AMPDU density.
|
|
|
|
* No HT-Xmit for station.
|
|
|
|
*/
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < CARL9170_NUM_TID; i++)
|
2011-11-23 00:09:32 -07:00
|
|
|
RCU_INIT_POINTER(sta_info->agg[i], NULL);
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
sta_info->ampdu_max_len = 1 << (3 + sta->ht_cap.ampdu_factor);
|
|
|
|
sta_info->ht_sta = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_op_sta_remove(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_sta *sta)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
struct carl9170_sta_info *sta_info = (void *) sta->drv_priv;
|
|
|
|
unsigned int i;
|
|
|
|
bool cleanup = false;
|
|
|
|
|
|
|
|
if (sta->ht_cap.ht_supported) {
|
|
|
|
|
|
|
|
sta_info->ht_sta = false;
|
|
|
|
|
|
|
|
rcu_read_lock();
|
|
|
|
for (i = 0; i < CARL9170_NUM_TID; i++) {
|
|
|
|
struct carl9170_sta_tid *tid_info;
|
|
|
|
|
|
|
|
tid_info = rcu_dereference(sta_info->agg[i]);
|
2011-11-23 00:09:32 -07:00
|
|
|
RCU_INIT_POINTER(sta_info->agg[i], NULL);
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
if (!tid_info)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
spin_lock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
if (tid_info->state > CARL9170_TID_STATE_SHUTDOWN)
|
|
|
|
tid_info->state = CARL9170_TID_STATE_SHUTDOWN;
|
|
|
|
spin_unlock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
cleanup = true;
|
|
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
if (cleanup)
|
|
|
|
carl9170_ampdu_gc(ar);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-10-02 02:15:52 -06:00
|
|
|
static int carl9170_op_conf_tx(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif, u16 queue,
|
2010-09-05 16:48:55 -06:00
|
|
|
const struct ieee80211_tx_queue_params *param)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
if (queue < ar->hw->queues) {
|
|
|
|
memcpy(&ar->edcf[ar9170_qmap[queue]], param, sizeof(*param));
|
|
|
|
ret = carl9170_set_qos(ar);
|
|
|
|
} else {
|
|
|
|
ret = -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_ampdu_work(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = container_of(work, struct ar9170,
|
|
|
|
ampdu_work);
|
|
|
|
|
|
|
|
if (!IS_STARTED(ar))
|
|
|
|
return;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
carl9170_ampdu_gc(ar);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_op_ampdu_action(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
enum ieee80211_ampdu_mlme_action action,
|
|
|
|
struct ieee80211_sta *sta,
|
2011-01-18 05:51:05 -07:00
|
|
|
u16 tid, u16 *ssn, u8 buf_size)
|
2010-09-05 16:48:55 -06:00
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
struct carl9170_sta_info *sta_info = (void *) sta->drv_priv;
|
|
|
|
struct carl9170_sta_tid *tid_info;
|
|
|
|
|
|
|
|
if (modparam_noht)
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
|
|
|
|
switch (action) {
|
|
|
|
case IEEE80211_AMPDU_TX_START:
|
2010-09-26 15:06:56 -06:00
|
|
|
if (!sta_info->ht_sta)
|
2010-09-05 16:48:55 -06:00
|
|
|
return -EOPNOTSUPP;
|
|
|
|
|
|
|
|
rcu_read_lock();
|
|
|
|
if (rcu_dereference(sta_info->agg[tid])) {
|
|
|
|
rcu_read_unlock();
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
tid_info = kzalloc(sizeof(struct carl9170_sta_tid),
|
|
|
|
GFP_ATOMIC);
|
|
|
|
if (!tid_info) {
|
|
|
|
rcu_read_unlock();
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
tid_info->hsn = tid_info->bsn = tid_info->snx = (*ssn);
|
|
|
|
tid_info->state = CARL9170_TID_STATE_PROGRESS;
|
|
|
|
tid_info->tid = tid;
|
|
|
|
tid_info->max = sta_info->ampdu_max_len;
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(&tid_info->list);
|
|
|
|
INIT_LIST_HEAD(&tid_info->tmp_list);
|
|
|
|
skb_queue_head_init(&tid_info->queue);
|
|
|
|
spin_lock_init(&tid_info->lock);
|
|
|
|
|
|
|
|
spin_lock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
ar->tx_ampdu_list_len++;
|
|
|
|
list_add_tail_rcu(&tid_info->list, &ar->tx_ampdu_list);
|
|
|
|
rcu_assign_pointer(sta_info->agg[tid], tid_info);
|
|
|
|
spin_unlock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IEEE80211_AMPDU_TX_STOP:
|
|
|
|
rcu_read_lock();
|
|
|
|
tid_info = rcu_dereference(sta_info->agg[tid]);
|
|
|
|
if (tid_info) {
|
|
|
|
spin_lock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
if (tid_info->state > CARL9170_TID_STATE_SHUTDOWN)
|
|
|
|
tid_info->state = CARL9170_TID_STATE_SHUTDOWN;
|
|
|
|
spin_unlock_bh(&ar->tx_ampdu_list_lock);
|
|
|
|
}
|
|
|
|
|
2011-11-23 00:09:32 -07:00
|
|
|
RCU_INIT_POINTER(sta_info->agg[tid], NULL);
|
2010-09-05 16:48:55 -06:00
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
|
|
|
|
ieee80211_queue_work(ar->hw, &ar->ampdu_work);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IEEE80211_AMPDU_TX_OPERATIONAL:
|
|
|
|
rcu_read_lock();
|
|
|
|
tid_info = rcu_dereference(sta_info->agg[tid]);
|
|
|
|
|
|
|
|
sta_info->stats[tid].clear = true;
|
2011-03-29 05:43:14 -06:00
|
|
|
sta_info->stats[tid].req = false;
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
if (tid_info) {
|
|
|
|
bitmap_zero(tid_info->bitmap, CARL9170_BAW_SIZE);
|
|
|
|
tid_info->state = CARL9170_TID_STATE_IDLE;
|
|
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
|
|
|
|
if (WARN_ON_ONCE(!tid_info))
|
|
|
|
return -EFAULT;
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IEEE80211_AMPDU_RX_START:
|
|
|
|
case IEEE80211_AMPDU_RX_STOP:
|
|
|
|
/* Handled by hardware */
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef CONFIG_CARL9170_WPC
|
|
|
|
static int carl9170_register_wps_button(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
struct input_dev *input;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
if (!(ar->features & CARL9170_WPS_BUTTON))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
input = input_allocate_device();
|
|
|
|
if (!input)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
snprintf(ar->wps.name, sizeof(ar->wps.name), "%s WPS Button",
|
|
|
|
wiphy_name(ar->hw->wiphy));
|
|
|
|
|
|
|
|
snprintf(ar->wps.phys, sizeof(ar->wps.phys),
|
|
|
|
"ieee80211/%s/input0", wiphy_name(ar->hw->wiphy));
|
|
|
|
|
|
|
|
input->name = ar->wps.name;
|
|
|
|
input->phys = ar->wps.phys;
|
|
|
|
input->id.bustype = BUS_USB;
|
|
|
|
input->dev.parent = &ar->hw->wiphy->dev;
|
|
|
|
|
|
|
|
input_set_capability(input, EV_KEY, KEY_WPS_BUTTON);
|
|
|
|
|
|
|
|
err = input_register_device(input);
|
|
|
|
if (err) {
|
|
|
|
input_free_device(input);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
ar->wps.pbc = input;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_CARL9170_WPC */
|
|
|
|
|
2011-08-15 12:09:54 -06:00
|
|
|
#ifdef CONFIG_CARL9170_HWRNG
|
|
|
|
static int carl9170_rng_get(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
|
|
|
|
#define RW (CARL9170_MAX_CMD_PAYLOAD_LEN / sizeof(u32))
|
|
|
|
#define RB (CARL9170_MAX_CMD_PAYLOAD_LEN)
|
|
|
|
|
|
|
|
static const __le32 rng_load[RW] = {
|
|
|
|
[0 ... (RW - 1)] = cpu_to_le32(AR9170_RAND_REG_NUM)};
|
|
|
|
|
|
|
|
u32 buf[RW];
|
|
|
|
|
|
|
|
unsigned int i, off = 0, transfer, count;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
BUILD_BUG_ON(RB > CARL9170_MAX_CMD_PAYLOAD_LEN);
|
|
|
|
|
|
|
|
if (!IS_ACCEPTING_CMD(ar) || !ar->rng.initialized)
|
|
|
|
return -EAGAIN;
|
|
|
|
|
|
|
|
count = ARRAY_SIZE(ar->rng.cache);
|
|
|
|
while (count) {
|
|
|
|
err = carl9170_exec_cmd(ar, CARL9170_CMD_RREG,
|
|
|
|
RB, (u8 *) rng_load,
|
|
|
|
RB, (u8 *) buf);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
transfer = min_t(unsigned int, count, RW);
|
|
|
|
for (i = 0; i < transfer; i++)
|
|
|
|
ar->rng.cache[off + i] = buf[i];
|
|
|
|
|
|
|
|
off += transfer;
|
|
|
|
count -= transfer;
|
|
|
|
}
|
|
|
|
|
|
|
|
ar->rng.cache_idx = 0;
|
|
|
|
|
|
|
|
#undef RW
|
|
|
|
#undef RB
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_rng_read(struct hwrng *rng, u32 *data)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = (struct ar9170 *)rng->priv;
|
|
|
|
int ret = -EIO;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
if (ar->rng.cache_idx >= ARRAY_SIZE(ar->rng.cache)) {
|
|
|
|
ret = carl9170_rng_get(ar);
|
|
|
|
if (ret) {
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
*data = ar->rng.cache[ar->rng.cache_idx++];
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
|
|
|
|
return sizeof(u16);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_unregister_hwrng(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
if (ar->rng.initialized) {
|
|
|
|
hwrng_unregister(&ar->rng.rng);
|
|
|
|
ar->rng.initialized = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_register_hwrng(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
int err;
|
|
|
|
|
|
|
|
snprintf(ar->rng.name, ARRAY_SIZE(ar->rng.name),
|
|
|
|
"%s_%s", KBUILD_MODNAME, wiphy_name(ar->hw->wiphy));
|
|
|
|
ar->rng.rng.name = ar->rng.name;
|
|
|
|
ar->rng.rng.data_read = carl9170_rng_read;
|
|
|
|
ar->rng.rng.priv = (unsigned long)ar;
|
|
|
|
|
|
|
|
if (WARN_ON(ar->rng.initialized))
|
|
|
|
return -EALREADY;
|
|
|
|
|
|
|
|
err = hwrng_register(&ar->rng.rng);
|
|
|
|
if (err) {
|
|
|
|
dev_err(&ar->udev->dev, "Failed to register the random "
|
|
|
|
"number generator (%d)\n", err);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
ar->rng.initialized = true;
|
|
|
|
|
|
|
|
err = carl9170_rng_get(ar);
|
|
|
|
if (err) {
|
|
|
|
carl9170_unregister_hwrng(ar);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_CARL9170_HWRNG */
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
static int carl9170_op_get_survey(struct ieee80211_hw *hw, int idx,
|
|
|
|
struct survey_info *survey)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
2011-08-15 11:50:48 -06:00
|
|
|
struct ieee80211_channel *chan;
|
|
|
|
struct ieee80211_supported_band *band;
|
|
|
|
int err, b, i;
|
2010-09-05 16:48:55 -06:00
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
chan = ar->channel;
|
|
|
|
if (!chan)
|
|
|
|
return -ENODEV;
|
2010-09-05 16:48:55 -06:00
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
if (idx == chan->hw_value) {
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
err = carl9170_update_survey(ar, false, true);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
}
|
2010-09-05 16:48:55 -06:00
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
|
|
|
|
band = ar->hw->wiphy->bands[b];
|
|
|
|
|
|
|
|
if (!band)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
for (i = 0; i < band->n_channels; i++) {
|
|
|
|
if (band->channels[i].hw_value == idx) {
|
|
|
|
chan = &band->channels[i];
|
|
|
|
goto found;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return -ENOENT;
|
|
|
|
|
|
|
|
found:
|
|
|
|
memcpy(survey, &ar->survey[idx], sizeof(*survey));
|
|
|
|
|
|
|
|
survey->channel = chan;
|
2010-09-05 16:48:55 -06:00
|
|
|
survey->filled = SURVEY_INFO_NOISE_DBM;
|
2011-08-15 11:50:48 -06:00
|
|
|
|
|
|
|
if (ar->channel == chan)
|
|
|
|
survey->filled |= SURVEY_INFO_IN_USE;
|
|
|
|
|
|
|
|
if (ar->fw.hw_counters) {
|
|
|
|
survey->filled |= SURVEY_INFO_CHANNEL_TIME |
|
|
|
|
SURVEY_INFO_CHANNEL_TIME_BUSY |
|
|
|
|
SURVEY_INFO_CHANNEL_TIME_TX;
|
|
|
|
}
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_op_flush(struct ieee80211_hw *hw, bool drop)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
unsigned int vid;
|
|
|
|
|
|
|
|
mutex_lock(&ar->mutex);
|
|
|
|
for_each_set_bit(vid, &ar->vif_bitmap, ar->fw.vif_num)
|
|
|
|
carl9170_flush_cab(ar, vid);
|
|
|
|
|
|
|
|
carl9170_flush(ar, drop);
|
|
|
|
mutex_unlock(&ar->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_op_get_stats(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_low_level_stats *stats)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
|
|
|
|
memset(stats, 0, sizeof(*stats));
|
|
|
|
stats->dot11ACKFailureCount = ar->tx_ack_failures;
|
|
|
|
stats->dot11FCSErrorCount = ar->tx_fcs_errors;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void carl9170_op_sta_notify(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
enum sta_notify_cmd cmd,
|
|
|
|
struct ieee80211_sta *sta)
|
|
|
|
{
|
|
|
|
struct carl9170_sta_info *sta_info = (void *) sta->drv_priv;
|
|
|
|
|
|
|
|
switch (cmd) {
|
|
|
|
case STA_NOTIFY_SLEEP:
|
2011-04-24 09:44:19 -06:00
|
|
|
sta_info->sleeping = true;
|
|
|
|
if (atomic_read(&sta_info->pending_frames))
|
|
|
|
ieee80211_sta_block_awake(hw, sta, true);
|
2010-09-05 16:48:55 -06:00
|
|
|
break;
|
|
|
|
|
|
|
|
case STA_NOTIFY_AWAKE:
|
2011-04-24 09:44:19 -06:00
|
|
|
sta_info->sleeping = false;
|
2010-09-05 16:48:55 -06:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-07-07 15:01:25 -06:00
|
|
|
static bool carl9170_tx_frames_pending(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
|
|
|
|
return !!atomic_read(&ar->tx_total_queued);
|
|
|
|
}
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
static const struct ieee80211_ops carl9170_ops = {
|
|
|
|
.start = carl9170_op_start,
|
|
|
|
.stop = carl9170_op_stop,
|
|
|
|
.tx = carl9170_op_tx,
|
|
|
|
.flush = carl9170_op_flush,
|
|
|
|
.add_interface = carl9170_op_add_interface,
|
|
|
|
.remove_interface = carl9170_op_remove_interface,
|
|
|
|
.config = carl9170_op_config,
|
|
|
|
.prepare_multicast = carl9170_op_prepare_multicast,
|
|
|
|
.configure_filter = carl9170_op_configure_filter,
|
|
|
|
.conf_tx = carl9170_op_conf_tx,
|
|
|
|
.bss_info_changed = carl9170_op_bss_info_changed,
|
|
|
|
.get_tsf = carl9170_op_get_tsf,
|
|
|
|
.set_key = carl9170_op_set_key,
|
|
|
|
.sta_add = carl9170_op_sta_add,
|
|
|
|
.sta_remove = carl9170_op_sta_remove,
|
|
|
|
.sta_notify = carl9170_op_sta_notify,
|
|
|
|
.get_survey = carl9170_op_get_survey,
|
|
|
|
.get_stats = carl9170_op_get_stats,
|
|
|
|
.ampdu_action = carl9170_op_ampdu_action,
|
2011-07-07 15:01:25 -06:00
|
|
|
.tx_frames_pending = carl9170_tx_frames_pending,
|
2010-09-05 16:48:55 -06:00
|
|
|
};
|
|
|
|
|
|
|
|
void *carl9170_alloc(size_t priv_size)
|
|
|
|
{
|
|
|
|
struct ieee80211_hw *hw;
|
|
|
|
struct ar9170 *ar;
|
|
|
|
struct sk_buff *skb;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* this buffer is used for rx stream reconstruction.
|
|
|
|
* Under heavy load this device (or the transport layer?)
|
|
|
|
* tends to split the streams into separate rx descriptors.
|
|
|
|
*/
|
|
|
|
|
|
|
|
skb = __dev_alloc_skb(AR9170_RX_STREAM_MAX_SIZE, GFP_KERNEL);
|
|
|
|
if (!skb)
|
|
|
|
goto err_nomem;
|
|
|
|
|
|
|
|
hw = ieee80211_alloc_hw(priv_size, &carl9170_ops);
|
|
|
|
if (!hw)
|
|
|
|
goto err_nomem;
|
|
|
|
|
|
|
|
ar = hw->priv;
|
|
|
|
ar->hw = hw;
|
|
|
|
ar->rx_failover = skb;
|
|
|
|
|
|
|
|
memset(&ar->rx_plcp, 0, sizeof(struct ar9170_rx_head));
|
|
|
|
ar->rx_has_plcp = false;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Here's a hidden pitfall!
|
|
|
|
*
|
|
|
|
* All 4 AC queues work perfectly well under _legacy_ operation.
|
|
|
|
* However as soon as aggregation is enabled, the traffic flow
|
|
|
|
* gets very bumpy. Therefore we have to _switch_ to a
|
|
|
|
* software AC with a single HW queue.
|
|
|
|
*/
|
|
|
|
hw->queues = __AR9170_NUM_TXQ;
|
|
|
|
|
|
|
|
mutex_init(&ar->mutex);
|
|
|
|
spin_lock_init(&ar->beacon_lock);
|
|
|
|
spin_lock_init(&ar->cmd_lock);
|
|
|
|
spin_lock_init(&ar->tx_stats_lock);
|
|
|
|
spin_lock_init(&ar->tx_ampdu_list_lock);
|
|
|
|
spin_lock_init(&ar->mem_lock);
|
|
|
|
spin_lock_init(&ar->state_lock);
|
|
|
|
atomic_set(&ar->pending_restarts, 0);
|
|
|
|
ar->vifs = 0;
|
|
|
|
for (i = 0; i < ar->hw->queues; i++) {
|
|
|
|
skb_queue_head_init(&ar->tx_status[i]);
|
|
|
|
skb_queue_head_init(&ar->tx_pending[i]);
|
2012-07-07 13:13:59 -06:00
|
|
|
|
|
|
|
INIT_LIST_HEAD(&ar->bar_list[i]);
|
|
|
|
spin_lock_init(&ar->bar_list_lock[i]);
|
2010-09-05 16:48:55 -06:00
|
|
|
}
|
|
|
|
INIT_WORK(&ar->ps_work, carl9170_ps_work);
|
2010-10-29 15:26:13 -06:00
|
|
|
INIT_WORK(&ar->ping_work, carl9170_ping_work);
|
2010-09-05 16:48:55 -06:00
|
|
|
INIT_WORK(&ar->restart_work, carl9170_restart_work);
|
|
|
|
INIT_WORK(&ar->ampdu_work, carl9170_ampdu_work);
|
2011-08-15 11:50:48 -06:00
|
|
|
INIT_DELAYED_WORK(&ar->stat_work, carl9170_stat_work);
|
2010-09-05 16:48:55 -06:00
|
|
|
INIT_DELAYED_WORK(&ar->tx_janitor, carl9170_tx_janitor);
|
|
|
|
INIT_LIST_HEAD(&ar->tx_ampdu_list);
|
|
|
|
rcu_assign_pointer(ar->tx_ampdu_iter,
|
|
|
|
(struct carl9170_sta_tid *) &ar->tx_ampdu_list);
|
|
|
|
|
|
|
|
bitmap_zero(&ar->vif_bitmap, ar->fw.vif_num);
|
|
|
|
INIT_LIST_HEAD(&ar->vif_list);
|
|
|
|
init_completion(&ar->tx_flush);
|
|
|
|
|
2011-05-13 18:42:38 -06:00
|
|
|
/* firmware decides which modes we support */
|
|
|
|
hw->wiphy->interface_modes = 0;
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS |
|
|
|
|
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
|
|
|
|
IEEE80211_HW_SUPPORTS_PS |
|
|
|
|
IEEE80211_HW_PS_NULLFUNC_STACK |
|
2011-06-30 12:31:34 -06:00
|
|
|
IEEE80211_HW_NEED_DTIM_PERIOD |
|
2010-09-05 16:48:55 -06:00
|
|
|
IEEE80211_HW_SIGNAL_DBM;
|
|
|
|
|
|
|
|
if (!modparam_noht) {
|
|
|
|
/*
|
|
|
|
* see the comment above, why we allow the user
|
|
|
|
* to disable HT by a module parameter.
|
|
|
|
*/
|
|
|
|
hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
|
|
|
|
}
|
|
|
|
|
|
|
|
hw->extra_tx_headroom = sizeof(struct _carl9170_tx_superframe);
|
|
|
|
hw->sta_data_size = sizeof(struct carl9170_sta_info);
|
|
|
|
hw->vif_data_size = sizeof(struct carl9170_vif_info);
|
|
|
|
|
|
|
|
hw->max_rates = CARL9170_TX_MAX_RATES;
|
|
|
|
hw->max_rate_tries = CARL9170_TX_USER_RATE_TRIES;
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ar->noise); i++)
|
|
|
|
ar->noise[i] = -95; /* ATH_DEFAULT_NOISE_FLOOR */
|
|
|
|
|
|
|
|
hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
|
2012-01-11 08:44:50 -07:00
|
|
|
|
|
|
|
/* As IBSS Encryption is software-based, IBSS RSN is supported. */
|
|
|
|
hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
|
2010-09-05 16:48:55 -06:00
|
|
|
return ar;
|
|
|
|
|
|
|
|
err_nomem:
|
|
|
|
kfree_skb(skb);
|
|
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_read_eeprom(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
#define RW 8 /* number of words to read at once */
|
|
|
|
#define RB (sizeof(u32) * RW)
|
|
|
|
u8 *eeprom = (void *)&ar->eeprom;
|
|
|
|
__le32 offsets[RW];
|
|
|
|
int i, j, err;
|
|
|
|
|
|
|
|
BUILD_BUG_ON(sizeof(ar->eeprom) & 3);
|
|
|
|
|
|
|
|
BUILD_BUG_ON(RB > CARL9170_MAX_CMD_LEN - 4);
|
|
|
|
#ifndef __CHECKER__
|
|
|
|
/* don't want to handle trailing remains */
|
|
|
|
BUILD_BUG_ON(sizeof(ar->eeprom) % RB);
|
|
|
|
#endif
|
|
|
|
|
2011-07-13 19:38:18 -06:00
|
|
|
for (i = 0; i < sizeof(ar->eeprom) / RB; i++) {
|
2010-09-05 16:48:55 -06:00
|
|
|
for (j = 0; j < RW; j++)
|
|
|
|
offsets[j] = cpu_to_le32(AR9170_EEPROM_START +
|
|
|
|
RB * i + 4 * j);
|
|
|
|
|
|
|
|
err = carl9170_exec_cmd(ar, CARL9170_CMD_RREG,
|
|
|
|
RB, (u8 *) &offsets,
|
|
|
|
RB, eeprom + RB * i);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
#undef RW
|
|
|
|
#undef RB
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_parse_eeprom(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
struct ath_regulatory *regulatory = &ar->common.regulatory;
|
|
|
|
unsigned int rx_streams, tx_streams, tx_params = 0;
|
|
|
|
int bands = 0;
|
2011-08-15 11:50:48 -06:00
|
|
|
int chans = 0;
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
if (ar->eeprom.length == cpu_to_le16(0xffff))
|
|
|
|
return -ENODATA;
|
|
|
|
|
|
|
|
rx_streams = hweight8(ar->eeprom.rx_mask);
|
|
|
|
tx_streams = hweight8(ar->eeprom.tx_mask);
|
|
|
|
|
|
|
|
if (rx_streams != tx_streams) {
|
|
|
|
tx_params = IEEE80211_HT_MCS_TX_RX_DIFF;
|
|
|
|
|
|
|
|
WARN_ON(!(tx_streams >= 1 && tx_streams <=
|
|
|
|
IEEE80211_HT_MCS_TX_MAX_STREAMS));
|
|
|
|
|
|
|
|
tx_params = (tx_streams - 1) <<
|
|
|
|
IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
|
|
|
|
|
|
|
|
carl9170_band_2GHz.ht_cap.mcs.tx_params |= tx_params;
|
|
|
|
carl9170_band_5GHz.ht_cap.mcs.tx_params |= tx_params;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ar->eeprom.operating_flags & AR9170_OPFLAG_2GHZ) {
|
|
|
|
ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
|
|
|
|
&carl9170_band_2GHz;
|
2011-08-15 11:50:48 -06:00
|
|
|
chans += carl9170_band_2GHz.n_channels;
|
2010-09-05 16:48:55 -06:00
|
|
|
bands++;
|
|
|
|
}
|
|
|
|
if (ar->eeprom.operating_flags & AR9170_OPFLAG_5GHZ) {
|
|
|
|
ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
|
|
|
|
&carl9170_band_5GHz;
|
2011-08-15 11:50:48 -06:00
|
|
|
chans += carl9170_band_5GHz.n_channels;
|
2010-09-05 16:48:55 -06:00
|
|
|
bands++;
|
|
|
|
}
|
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
if (!bands)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
ar->survey = kzalloc(sizeof(struct survey_info) * chans, GFP_KERNEL);
|
|
|
|
if (!ar->survey)
|
|
|
|
return -ENOMEM;
|
|
|
|
ar->num_channels = chans;
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
/*
|
|
|
|
* I measured this, a bandswitch takes roughly
|
|
|
|
* 135 ms and a frequency switch about 80.
|
|
|
|
*
|
|
|
|
* FIXME: measure these values again once EEPROM settings
|
|
|
|
* are used, that will influence them!
|
|
|
|
*/
|
|
|
|
if (bands == 2)
|
|
|
|
ar->hw->channel_change_time = 135 * 1000;
|
|
|
|
else
|
|
|
|
ar->hw->channel_change_time = 80 * 1000;
|
|
|
|
|
|
|
|
regulatory->current_rd = le16_to_cpu(ar->eeprom.reg_domain[0]);
|
|
|
|
|
|
|
|
/* second part of wiphy init */
|
|
|
|
SET_IEEE80211_PERM_ADDR(ar->hw, ar->eeprom.mac_address);
|
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
return 0;
|
2010-09-05 16:48:55 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
static int carl9170_reg_notifier(struct wiphy *wiphy,
|
|
|
|
struct regulatory_request *request)
|
|
|
|
{
|
|
|
|
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
|
|
|
|
struct ar9170 *ar = hw->priv;
|
|
|
|
|
|
|
|
return ath_reg_notifier_apply(wiphy, request, &ar->common.regulatory);
|
|
|
|
}
|
|
|
|
|
|
|
|
int carl9170_register(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
struct ath_regulatory *regulatory = &ar->common.regulatory;
|
|
|
|
int err = 0, i;
|
|
|
|
|
|
|
|
if (WARN_ON(ar->mem_bitmap))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
ar->mem_bitmap = kzalloc(roundup(ar->fw.mem_blocks, BITS_PER_LONG) *
|
|
|
|
sizeof(unsigned long), GFP_KERNEL);
|
|
|
|
|
|
|
|
if (!ar->mem_bitmap)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
/* try to read EEPROM, init MAC addr */
|
|
|
|
err = carl9170_read_eeprom(ar);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
err = carl9170_parse_eeprom(ar);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
err = ath_regd_init(regulatory, ar->hw->wiphy,
|
|
|
|
carl9170_reg_notifier);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
if (modparam_noht) {
|
|
|
|
carl9170_band_2GHz.ht_cap.ht_supported = false;
|
|
|
|
carl9170_band_5GHz.ht_cap.ht_supported = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < ar->fw.vif_num; i++) {
|
|
|
|
ar->vif_priv[i].id = i;
|
|
|
|
ar->vif_priv[i].vif = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = ieee80211_register_hw(ar->hw);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
/* mac80211 interface is now registered */
|
|
|
|
ar->registered = true;
|
|
|
|
|
|
|
|
if (!ath_is_world_regd(regulatory))
|
|
|
|
regulatory_hint(ar->hw->wiphy, regulatory->alpha2);
|
|
|
|
|
|
|
|
#ifdef CONFIG_CARL9170_DEBUGFS
|
|
|
|
carl9170_debugfs_register(ar);
|
|
|
|
#endif /* CONFIG_CARL9170_DEBUGFS */
|
|
|
|
|
|
|
|
err = carl9170_led_init(ar);
|
|
|
|
if (err)
|
|
|
|
goto err_unreg;
|
|
|
|
|
|
|
|
#ifdef CONFIG_CARL9170_LEDS
|
|
|
|
err = carl9170_led_register(ar);
|
|
|
|
if (err)
|
|
|
|
goto err_unreg;
|
2010-10-23 11:51:32 -06:00
|
|
|
#endif /* CONFIG_CARL9170_LEDS */
|
2010-09-05 16:48:55 -06:00
|
|
|
|
|
|
|
#ifdef CONFIG_CARL9170_WPC
|
|
|
|
err = carl9170_register_wps_button(ar);
|
|
|
|
if (err)
|
|
|
|
goto err_unreg;
|
|
|
|
#endif /* CONFIG_CARL9170_WPC */
|
|
|
|
|
2011-08-15 12:09:54 -06:00
|
|
|
#ifdef CONFIG_CARL9170_HWRNG
|
|
|
|
err = carl9170_register_hwrng(ar);
|
|
|
|
if (err)
|
|
|
|
goto err_unreg;
|
|
|
|
#endif /* CONFIG_CARL9170_HWRNG */
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
dev_info(&ar->udev->dev, "Atheros AR9170 is registered as '%s'\n",
|
|
|
|
wiphy_name(ar->hw->wiphy));
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_unreg:
|
|
|
|
carl9170_unregister(ar);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
void carl9170_unregister(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
if (!ar->registered)
|
|
|
|
return;
|
|
|
|
|
|
|
|
ar->registered = false;
|
|
|
|
|
|
|
|
#ifdef CONFIG_CARL9170_LEDS
|
|
|
|
carl9170_led_unregister(ar);
|
|
|
|
#endif /* CONFIG_CARL9170_LEDS */
|
|
|
|
|
|
|
|
#ifdef CONFIG_CARL9170_DEBUGFS
|
|
|
|
carl9170_debugfs_unregister(ar);
|
|
|
|
#endif /* CONFIG_CARL9170_DEBUGFS */
|
|
|
|
|
|
|
|
#ifdef CONFIG_CARL9170_WPC
|
|
|
|
if (ar->wps.pbc) {
|
|
|
|
input_unregister_device(ar->wps.pbc);
|
|
|
|
ar->wps.pbc = NULL;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_CARL9170_WPC */
|
|
|
|
|
2011-08-15 12:09:54 -06:00
|
|
|
#ifdef CONFIG_CARL9170_HWRNG
|
|
|
|
carl9170_unregister_hwrng(ar);
|
|
|
|
#endif /* CONFIG_CARL9170_HWRNG */
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
carl9170_cancel_worker(ar);
|
|
|
|
cancel_work_sync(&ar->restart_work);
|
|
|
|
|
|
|
|
ieee80211_unregister_hw(ar->hw);
|
|
|
|
}
|
|
|
|
|
|
|
|
void carl9170_free(struct ar9170 *ar)
|
|
|
|
{
|
|
|
|
WARN_ON(ar->registered);
|
|
|
|
WARN_ON(IS_INITIALIZED(ar));
|
|
|
|
|
|
|
|
kfree_skb(ar->rx_failover);
|
|
|
|
ar->rx_failover = NULL;
|
|
|
|
|
|
|
|
kfree(ar->mem_bitmap);
|
|
|
|
ar->mem_bitmap = NULL;
|
|
|
|
|
2011-08-15 11:50:48 -06:00
|
|
|
kfree(ar->survey);
|
|
|
|
ar->survey = NULL;
|
|
|
|
|
2010-09-05 16:48:55 -06:00
|
|
|
mutex_destroy(&ar->mutex);
|
|
|
|
|
|
|
|
ieee80211_free_hw(ar->hw);
|
|
|
|
}
|