102e0572d3
Also, random indentation and whitespace cleanup. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1837 lines
46 KiB
C
1837 lines
46 KiB
C
/*
|
|
* Copyright (c) 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.
|
|
*/
|
|
|
|
/* mac80211 and PCI callbacks */
|
|
|
|
#include <linux/nl80211.h>
|
|
#include "core.h"
|
|
|
|
#define ATH_PCI_VERSION "0.1"
|
|
|
|
static char *dev_info = "ath9k";
|
|
|
|
MODULE_AUTHOR("Atheros Communications");
|
|
MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
|
|
MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
|
|
|
static struct pci_device_id ath_pci_id_table[] __devinitdata = {
|
|
{ PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI */
|
|
{ PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */
|
|
{ PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI */
|
|
{ PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI */
|
|
{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
|
|
{ 0 }
|
|
};
|
|
|
|
static int ath_get_channel(struct ath_softc *sc,
|
|
struct ieee80211_channel *chan)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sc->sc_ah->ah_nchan; i++) {
|
|
if (sc->sc_ah->ah_channels[i].channel == chan->center_freq)
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static u32 ath_get_extchanmode(struct ath_softc *sc,
|
|
struct ieee80211_channel *chan)
|
|
{
|
|
u32 chanmode = 0;
|
|
u8 ext_chan_offset = sc->sc_ht_info.ext_chan_offset;
|
|
enum ath9k_ht_macmode tx_chan_width = sc->sc_ht_info.tx_chan_width;
|
|
|
|
switch (chan->band) {
|
|
case IEEE80211_BAND_2GHZ:
|
|
if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE) &&
|
|
(tx_chan_width == ATH9K_HT_MACMODE_20))
|
|
chanmode = CHANNEL_G_HT20;
|
|
if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) &&
|
|
(tx_chan_width == ATH9K_HT_MACMODE_2040))
|
|
chanmode = CHANNEL_G_HT40PLUS;
|
|
if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) &&
|
|
(tx_chan_width == ATH9K_HT_MACMODE_2040))
|
|
chanmode = CHANNEL_G_HT40MINUS;
|
|
break;
|
|
case IEEE80211_BAND_5GHZ:
|
|
if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE) &&
|
|
(tx_chan_width == ATH9K_HT_MACMODE_20))
|
|
chanmode = CHANNEL_A_HT20;
|
|
if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) &&
|
|
(tx_chan_width == ATH9K_HT_MACMODE_2040))
|
|
chanmode = CHANNEL_A_HT40PLUS;
|
|
if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) &&
|
|
(tx_chan_width == ATH9K_HT_MACMODE_2040))
|
|
chanmode = CHANNEL_A_HT40MINUS;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return chanmode;
|
|
}
|
|
|
|
|
|
static int ath_setkey_tkip(struct ath_softc *sc,
|
|
struct ieee80211_key_conf *key,
|
|
struct ath9k_keyval *hk,
|
|
const u8 *addr)
|
|
{
|
|
u8 *key_rxmic = NULL;
|
|
u8 *key_txmic = NULL;
|
|
|
|
key_txmic = key->key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY;
|
|
key_rxmic = key->key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY;
|
|
|
|
if (addr == NULL) {
|
|
/* Group key installation */
|
|
memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
|
|
return ath_keyset(sc, key->keyidx, hk, addr);
|
|
}
|
|
if (!sc->sc_splitmic) {
|
|
/*
|
|
* data key goes at first index,
|
|
* the hal handles the MIC keys at index+64.
|
|
*/
|
|
memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
|
|
memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic));
|
|
return ath_keyset(sc, key->keyidx, hk, addr);
|
|
}
|
|
/*
|
|
* TX key goes at first index, RX key at +32.
|
|
* The hal handles the MIC keys at index+64.
|
|
*/
|
|
memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic));
|
|
if (!ath_keyset(sc, key->keyidx, hk, NULL)) {
|
|
/* Txmic entry failed. No need to proceed further */
|
|
DPRINTF(sc, ATH_DBG_KEYCACHE,
|
|
"%s Setting TX MIC Key Failed\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
|
|
/* XXX delete tx key on failure? */
|
|
return ath_keyset(sc, key->keyidx+32, hk, addr);
|
|
}
|
|
|
|
static int ath_key_config(struct ath_softc *sc,
|
|
const u8 *addr,
|
|
struct ieee80211_key_conf *key)
|
|
{
|
|
struct ieee80211_vif *vif;
|
|
struct ath9k_keyval hk;
|
|
const u8 *mac = NULL;
|
|
int ret = 0;
|
|
enum nl80211_iftype opmode;
|
|
|
|
memset(&hk, 0, sizeof(hk));
|
|
|
|
switch (key->alg) {
|
|
case ALG_WEP:
|
|
hk.kv_type = ATH9K_CIPHER_WEP;
|
|
break;
|
|
case ALG_TKIP:
|
|
hk.kv_type = ATH9K_CIPHER_TKIP;
|
|
break;
|
|
case ALG_CCMP:
|
|
hk.kv_type = ATH9K_CIPHER_AES_CCM;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
hk.kv_len = key->keylen;
|
|
memcpy(hk.kv_val, key->key, key->keylen);
|
|
|
|
if (!sc->sc_vaps[0])
|
|
return -EIO;
|
|
|
|
vif = sc->sc_vaps[0]->av_if_data;
|
|
opmode = vif->type;
|
|
|
|
/*
|
|
* Strategy:
|
|
* For _M_STA mc tx, we will not setup a key at all since we never
|
|
* tx mc.
|
|
* _M_STA mc rx, we will use the keyID.
|
|
* for _M_IBSS mc tx, we will use the keyID, and no macaddr.
|
|
* for _M_IBSS mc rx, we will alloc a slot and plumb the mac of the
|
|
* peer node. BUT we will plumb a cleartext key so that we can do
|
|
* perSta default key table lookup in software.
|
|
*/
|
|
if (is_broadcast_ether_addr(addr)) {
|
|
switch (opmode) {
|
|
case NL80211_IFTYPE_STATION:
|
|
/* default key: could be group WPA key
|
|
* or could be static WEP key */
|
|
mac = NULL;
|
|
break;
|
|
case NL80211_IFTYPE_ADHOC:
|
|
break;
|
|
case NL80211_IFTYPE_AP:
|
|
break;
|
|
default:
|
|
ASSERT(0);
|
|
break;
|
|
}
|
|
} else {
|
|
mac = addr;
|
|
}
|
|
|
|
if (key->alg == ALG_TKIP)
|
|
ret = ath_setkey_tkip(sc, key, &hk, mac);
|
|
else
|
|
ret = ath_keyset(sc, key->keyidx, &hk, mac);
|
|
|
|
if (!ret)
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key)
|
|
{
|
|
int freeslot;
|
|
|
|
freeslot = (key->keyidx >= 4) ? 1 : 0;
|
|
ath_key_reset(sc, key->keyidx, freeslot);
|
|
}
|
|
|
|
static void setup_ht_cap(struct ieee80211_sta_ht_cap *ht_info)
|
|
{
|
|
#define ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3 /* 2 ^ 16 */
|
|
#define ATH9K_HT_CAP_MPDUDENSITY_8 0x6 /* 8 usec */
|
|
|
|
ht_info->ht_supported = true;
|
|
ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
|
|
IEEE80211_HT_CAP_SM_PS |
|
|
IEEE80211_HT_CAP_SGI_40 |
|
|
IEEE80211_HT_CAP_DSSSCCK40;
|
|
|
|
ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536;
|
|
ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8;
|
|
/* set up supported mcs set */
|
|
memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
|
|
ht_info->mcs.rx_mask[0] = 0xff;
|
|
ht_info->mcs.rx_mask[1] = 0xff;
|
|
ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
|
|
}
|
|
|
|
static int ath_rate2idx(struct ath_softc *sc, int rate)
|
|
{
|
|
int i = 0, cur_band, n_rates;
|
|
struct ieee80211_hw *hw = sc->hw;
|
|
|
|
cur_band = hw->conf.channel->band;
|
|
n_rates = sc->sbands[cur_band].n_bitrates;
|
|
|
|
for (i = 0; i < n_rates; i++) {
|
|
if (sc->sbands[cur_band].bitrates[i].bitrate == rate)
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* NB:mac80211 validates rx rate index against the supported legacy rate
|
|
* index only (should be done against ht rates also), return the highest
|
|
* legacy rate index for rx rate which does not match any one of the
|
|
* supported basic and extended rates to make mac80211 happy.
|
|
* The following hack will be cleaned up once the issue with
|
|
* the rx rate index validation in mac80211 is fixed.
|
|
*/
|
|
if (i == n_rates)
|
|
return n_rates - 1;
|
|
return i;
|
|
}
|
|
|
|
static void ath9k_rx_prepare(struct ath_softc *sc,
|
|
struct sk_buff *skb,
|
|
struct ath_recv_status *status,
|
|
struct ieee80211_rx_status *rx_status)
|
|
{
|
|
struct ieee80211_hw *hw = sc->hw;
|
|
struct ieee80211_channel *curchan = hw->conf.channel;
|
|
|
|
memset(rx_status, 0, sizeof(struct ieee80211_rx_status));
|
|
|
|
rx_status->mactime = status->tsf;
|
|
rx_status->band = curchan->band;
|
|
rx_status->freq = curchan->center_freq;
|
|
rx_status->noise = sc->sc_ani.sc_noise_floor;
|
|
rx_status->signal = rx_status->noise + status->rssi;
|
|
rx_status->rate_idx = ath_rate2idx(sc, (status->rateKbps / 100));
|
|
rx_status->antenna = status->antenna;
|
|
|
|
/* at 45 you will be able to use MCS 15 reliably. A more elaborate
|
|
* scheme can be used here but it requires tables of SNR/throughput for
|
|
* each possible mode used. */
|
|
rx_status->qual = status->rssi * 100 / 45;
|
|
|
|
/* rssi can be more than 45 though, anything above that
|
|
* should be considered at 100% */
|
|
if (rx_status->qual > 100)
|
|
rx_status->qual = 100;
|
|
|
|
if (status->flags & ATH_RX_MIC_ERROR)
|
|
rx_status->flag |= RX_FLAG_MMIC_ERROR;
|
|
if (status->flags & ATH_RX_FCS_ERROR)
|
|
rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
|
|
|
|
rx_status->flag |= RX_FLAG_TSFT;
|
|
}
|
|
|
|
static void ath9k_ht_conf(struct ath_softc *sc,
|
|
struct ieee80211_bss_conf *bss_conf)
|
|
{
|
|
struct ath_ht_info *ht_info = &sc->sc_ht_info;
|
|
|
|
if (sc->hw->conf.ht.enabled) {
|
|
ht_info->ext_chan_offset = bss_conf->ht.secondary_channel_offset;
|
|
|
|
if (bss_conf->ht.width_40_ok)
|
|
ht_info->tx_chan_width = ATH9K_HT_MACMODE_2040;
|
|
else
|
|
ht_info->tx_chan_width = ATH9K_HT_MACMODE_20;
|
|
|
|
ath9k_hw_set11nmac2040(sc->sc_ah, ht_info->tx_chan_width);
|
|
}
|
|
}
|
|
|
|
static void ath9k_bss_assoc_info(struct ath_softc *sc,
|
|
struct ieee80211_bss_conf *bss_conf)
|
|
{
|
|
struct ieee80211_hw *hw = sc->hw;
|
|
struct ieee80211_channel *curchan = hw->conf.channel;
|
|
struct ath_vap *avp;
|
|
int pos;
|
|
|
|
if (bss_conf->assoc) {
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Bss Info ASSOC %d\n",
|
|
__func__,
|
|
bss_conf->aid);
|
|
|
|
avp = sc->sc_vaps[0];
|
|
if (avp == NULL) {
|
|
DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid interface\n",
|
|
__func__);
|
|
return;
|
|
}
|
|
|
|
/* New association, store aid */
|
|
if (avp->av_opmode == ATH9K_M_STA) {
|
|
sc->sc_curaid = bss_conf->aid;
|
|
ath9k_hw_write_associd(sc->sc_ah, sc->sc_curbssid,
|
|
sc->sc_curaid);
|
|
}
|
|
|
|
/* Configure the beacon */
|
|
ath_beacon_config(sc, 0);
|
|
sc->sc_flags |= SC_OP_BEACONS;
|
|
|
|
/* Reset rssi stats */
|
|
sc->sc_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER;
|
|
sc->sc_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER;
|
|
sc->sc_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
|
|
sc->sc_halstats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER;
|
|
|
|
/* Update chainmask */
|
|
ath_update_chainmask(sc, hw->conf.ht.enabled);
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG,
|
|
"%s: bssid %pM aid 0x%x\n",
|
|
__func__,
|
|
sc->sc_curbssid, sc->sc_curaid);
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set channel: %d MHz\n",
|
|
__func__,
|
|
curchan->center_freq);
|
|
|
|
pos = ath_get_channel(sc, curchan);
|
|
if (pos == -1) {
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Invalid channel\n", __func__);
|
|
return;
|
|
}
|
|
|
|
if (hw->conf.ht.enabled)
|
|
sc->sc_ah->ah_channels[pos].chanmode =
|
|
ath_get_extchanmode(sc, curchan);
|
|
else
|
|
sc->sc_ah->ah_channels[pos].chanmode =
|
|
(curchan->band == IEEE80211_BAND_2GHZ) ?
|
|
CHANNEL_G : CHANNEL_A;
|
|
|
|
/* set h/w channel */
|
|
if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0)
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unable to set channel\n",
|
|
__func__);
|
|
|
|
ath_rate_newstate(sc, avp);
|
|
/* Update ratectrl about the new state */
|
|
ath_rc_node_update(hw, avp->rc_node);
|
|
|
|
/* Start ANI */
|
|
mod_timer(&sc->sc_ani.timer,
|
|
jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
|
|
|
|
} else {
|
|
DPRINTF(sc, ATH_DBG_CONFIG,
|
|
"%s: Bss Info DISSOC\n", __func__);
|
|
sc->sc_curaid = 0;
|
|
}
|
|
}
|
|
|
|
void ath_get_beaconconfig(struct ath_softc *sc,
|
|
int if_id,
|
|
struct ath_beacon_config *conf)
|
|
{
|
|
struct ieee80211_hw *hw = sc->hw;
|
|
|
|
/* fill in beacon config data */
|
|
|
|
conf->beacon_interval = hw->conf.beacon_int;
|
|
conf->listen_interval = 100;
|
|
conf->dtim_count = 1;
|
|
conf->bmiss_timeout = ATH_DEFAULT_BMISS_LIMIT * conf->listen_interval;
|
|
}
|
|
|
|
void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
|
|
struct ath_xmit_status *tx_status)
|
|
{
|
|
struct ieee80211_hw *hw = sc->hw;
|
|
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
|
|
|
|
DPRINTF(sc, ATH_DBG_XMIT,
|
|
"%s: TX complete: skb: %p\n", __func__, skb);
|
|
|
|
ieee80211_tx_info_clear_status(tx_info);
|
|
if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK ||
|
|
tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
|
|
/* free driver's private data area of tx_info, XXX: HACK! */
|
|
if (tx_info->control.vif != NULL)
|
|
kfree(tx_info->control.vif);
|
|
tx_info->control.vif = NULL;
|
|
}
|
|
|
|
if (tx_status->flags & ATH_TX_BAR) {
|
|
tx_info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
|
|
tx_status->flags &= ~ATH_TX_BAR;
|
|
}
|
|
|
|
if (!(tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY))) {
|
|
/* Frame was ACKed */
|
|
tx_info->flags |= IEEE80211_TX_STAT_ACK;
|
|
}
|
|
|
|
tx_info->status.rates[0].count = tx_status->retries + 1;
|
|
|
|
ieee80211_tx_status(hw, skb);
|
|
}
|
|
|
|
int _ath_rx_indicate(struct ath_softc *sc,
|
|
struct sk_buff *skb,
|
|
struct ath_recv_status *status,
|
|
u16 keyix)
|
|
{
|
|
struct ieee80211_hw *hw = sc->hw;
|
|
struct ath_node *an = NULL;
|
|
struct ieee80211_rx_status rx_status;
|
|
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
|
|
int hdrlen = ieee80211_get_hdrlen_from_skb(skb);
|
|
int padsize;
|
|
enum ATH_RX_TYPE st;
|
|
|
|
/* see if any padding is done by the hw and remove it */
|
|
if (hdrlen & 3) {
|
|
padsize = hdrlen % 4;
|
|
memmove(skb->data + padsize, skb->data, hdrlen);
|
|
skb_pull(skb, padsize);
|
|
}
|
|
|
|
/* Prepare rx status */
|
|
ath9k_rx_prepare(sc, skb, status, &rx_status);
|
|
|
|
if (!(keyix == ATH9K_RXKEYIX_INVALID) &&
|
|
!(status->flags & ATH_RX_DECRYPT_ERROR)) {
|
|
rx_status.flag |= RX_FLAG_DECRYPTED;
|
|
} else if ((le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_PROTECTED)
|
|
&& !(status->flags & ATH_RX_DECRYPT_ERROR)
|
|
&& skb->len >= hdrlen + 4) {
|
|
keyix = skb->data[hdrlen + 3] >> 6;
|
|
|
|
if (test_bit(keyix, sc->sc_keymap))
|
|
rx_status.flag |= RX_FLAG_DECRYPTED;
|
|
}
|
|
|
|
if (an) {
|
|
ath_rx_input(sc, an,
|
|
skb, status, &st);
|
|
}
|
|
if (!an || (st != ATH_RX_CONSUMED))
|
|
__ieee80211_rx(hw, skb, &rx_status);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ath_rx_subframe(struct ath_node *an, struct sk_buff *skb,
|
|
struct ath_recv_status *status)
|
|
{
|
|
struct ath_softc *sc = an->an_sc;
|
|
struct ieee80211_hw *hw = sc->hw;
|
|
struct ieee80211_rx_status rx_status;
|
|
|
|
/* Prepare rx status */
|
|
ath9k_rx_prepare(sc, skb, status, &rx_status);
|
|
if (!(status->flags & ATH_RX_DECRYPT_ERROR))
|
|
rx_status.flag |= RX_FLAG_DECRYPTED;
|
|
|
|
__ieee80211_rx(hw, skb, &rx_status);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/********************************/
|
|
/* LED functions */
|
|
/********************************/
|
|
|
|
static void ath_led_brightness(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev);
|
|
struct ath_softc *sc = led->sc;
|
|
|
|
switch (brightness) {
|
|
case LED_OFF:
|
|
if (led->led_type == ATH_LED_ASSOC ||
|
|
led->led_type == ATH_LED_RADIO)
|
|
sc->sc_flags &= ~SC_OP_LED_ASSOCIATED;
|
|
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN,
|
|
(led->led_type == ATH_LED_RADIO) ? 1 :
|
|
!!(sc->sc_flags & SC_OP_LED_ASSOCIATED));
|
|
break;
|
|
case LED_FULL:
|
|
if (led->led_type == ATH_LED_ASSOC)
|
|
sc->sc_flags |= SC_OP_LED_ASSOCIATED;
|
|
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int ath_register_led(struct ath_softc *sc, struct ath_led *led,
|
|
char *trigger)
|
|
{
|
|
int ret;
|
|
|
|
led->sc = sc;
|
|
led->led_cdev.name = led->name;
|
|
led->led_cdev.default_trigger = trigger;
|
|
led->led_cdev.brightness_set = ath_led_brightness;
|
|
|
|
ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev);
|
|
if (ret)
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"Failed to register led:%s", led->name);
|
|
else
|
|
led->registered = 1;
|
|
return ret;
|
|
}
|
|
|
|
static void ath_unregister_led(struct ath_led *led)
|
|
{
|
|
if (led->registered) {
|
|
led_classdev_unregister(&led->led_cdev);
|
|
led->registered = 0;
|
|
}
|
|
}
|
|
|
|
static void ath_deinit_leds(struct ath_softc *sc)
|
|
{
|
|
ath_unregister_led(&sc->assoc_led);
|
|
sc->sc_flags &= ~SC_OP_LED_ASSOCIATED;
|
|
ath_unregister_led(&sc->tx_led);
|
|
ath_unregister_led(&sc->rx_led);
|
|
ath_unregister_led(&sc->radio_led);
|
|
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
|
|
}
|
|
|
|
static void ath_init_leds(struct ath_softc *sc)
|
|
{
|
|
char *trigger;
|
|
int ret;
|
|
|
|
/* Configure gpio 1 for output */
|
|
ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN,
|
|
AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
|
|
/* LED off, active low */
|
|
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
|
|
|
|
trigger = ieee80211_get_radio_led_name(sc->hw);
|
|
snprintf(sc->radio_led.name, sizeof(sc->radio_led.name),
|
|
"ath9k-%s:radio", wiphy_name(sc->hw->wiphy));
|
|
ret = ath_register_led(sc, &sc->radio_led, trigger);
|
|
sc->radio_led.led_type = ATH_LED_RADIO;
|
|
if (ret)
|
|
goto fail;
|
|
|
|
trigger = ieee80211_get_assoc_led_name(sc->hw);
|
|
snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name),
|
|
"ath9k-%s:assoc", wiphy_name(sc->hw->wiphy));
|
|
ret = ath_register_led(sc, &sc->assoc_led, trigger);
|
|
sc->assoc_led.led_type = ATH_LED_ASSOC;
|
|
if (ret)
|
|
goto fail;
|
|
|
|
trigger = ieee80211_get_tx_led_name(sc->hw);
|
|
snprintf(sc->tx_led.name, sizeof(sc->tx_led.name),
|
|
"ath9k-%s:tx", wiphy_name(sc->hw->wiphy));
|
|
ret = ath_register_led(sc, &sc->tx_led, trigger);
|
|
sc->tx_led.led_type = ATH_LED_TX;
|
|
if (ret)
|
|
goto fail;
|
|
|
|
trigger = ieee80211_get_rx_led_name(sc->hw);
|
|
snprintf(sc->rx_led.name, sizeof(sc->rx_led.name),
|
|
"ath9k-%s:rx", wiphy_name(sc->hw->wiphy));
|
|
ret = ath_register_led(sc, &sc->rx_led, trigger);
|
|
sc->rx_led.led_type = ATH_LED_RX;
|
|
if (ret)
|
|
goto fail;
|
|
|
|
return;
|
|
|
|
fail:
|
|
ath_deinit_leds(sc);
|
|
}
|
|
|
|
#ifdef CONFIG_RFKILL
|
|
/*******************/
|
|
/* Rfkill */
|
|
/*******************/
|
|
|
|
static void ath_radio_enable(struct ath_softc *sc)
|
|
{
|
|
struct ath_hal *ah = sc->sc_ah;
|
|
int status;
|
|
|
|
spin_lock_bh(&sc->sc_resetlock);
|
|
if (!ath9k_hw_reset(ah, ah->ah_curchan,
|
|
sc->sc_ht_info.tx_chan_width,
|
|
sc->sc_tx_chainmask,
|
|
sc->sc_rx_chainmask,
|
|
sc->sc_ht_extprotspacing,
|
|
false, &status)) {
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: unable to reset channel %u (%uMhz) "
|
|
"flags 0x%x hal status %u\n", __func__,
|
|
ath9k_hw_mhz2ieee(ah,
|
|
ah->ah_curchan->channel,
|
|
ah->ah_curchan->channelFlags),
|
|
ah->ah_curchan->channel,
|
|
ah->ah_curchan->channelFlags, status);
|
|
}
|
|
spin_unlock_bh(&sc->sc_resetlock);
|
|
|
|
ath_update_txpow(sc);
|
|
if (ath_startrecv(sc) != 0) {
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: unable to restart recv logic\n", __func__);
|
|
return;
|
|
}
|
|
|
|
if (sc->sc_flags & SC_OP_BEACONS)
|
|
ath_beacon_config(sc, ATH_IF_ID_ANY); /* restart beacons */
|
|
|
|
/* Re-Enable interrupts */
|
|
ath9k_hw_set_interrupts(ah, sc->sc_imask);
|
|
|
|
/* Enable LED */
|
|
ath9k_hw_cfg_output(ah, ATH_LED_PIN,
|
|
AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
|
|
ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0);
|
|
|
|
ieee80211_wake_queues(sc->hw);
|
|
}
|
|
|
|
static void ath_radio_disable(struct ath_softc *sc)
|
|
{
|
|
struct ath_hal *ah = sc->sc_ah;
|
|
int status;
|
|
|
|
|
|
ieee80211_stop_queues(sc->hw);
|
|
|
|
/* Disable LED */
|
|
ath9k_hw_set_gpio(ah, ATH_LED_PIN, 1);
|
|
ath9k_hw_cfg_gpio_input(ah, ATH_LED_PIN);
|
|
|
|
/* Disable interrupts */
|
|
ath9k_hw_set_interrupts(ah, 0);
|
|
|
|
ath_draintxq(sc, false); /* clear pending tx frames */
|
|
ath_stoprecv(sc); /* turn off frame recv */
|
|
ath_flushrecv(sc); /* flush recv queue */
|
|
|
|
spin_lock_bh(&sc->sc_resetlock);
|
|
if (!ath9k_hw_reset(ah, ah->ah_curchan,
|
|
sc->sc_ht_info.tx_chan_width,
|
|
sc->sc_tx_chainmask,
|
|
sc->sc_rx_chainmask,
|
|
sc->sc_ht_extprotspacing,
|
|
false, &status)) {
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: unable to reset channel %u (%uMhz) "
|
|
"flags 0x%x hal status %u\n", __func__,
|
|
ath9k_hw_mhz2ieee(ah,
|
|
ah->ah_curchan->channel,
|
|
ah->ah_curchan->channelFlags),
|
|
ah->ah_curchan->channel,
|
|
ah->ah_curchan->channelFlags, status);
|
|
}
|
|
spin_unlock_bh(&sc->sc_resetlock);
|
|
|
|
ath9k_hw_phy_disable(ah);
|
|
ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
|
|
}
|
|
|
|
static bool ath_is_rfkill_set(struct ath_softc *sc)
|
|
{
|
|
struct ath_hal *ah = sc->sc_ah;
|
|
|
|
return ath9k_hw_gpio_get(ah, ah->ah_rfkill_gpio) ==
|
|
ah->ah_rfkill_polarity;
|
|
}
|
|
|
|
/* h/w rfkill poll function */
|
|
static void ath_rfkill_poll(struct work_struct *work)
|
|
{
|
|
struct ath_softc *sc = container_of(work, struct ath_softc,
|
|
rf_kill.rfkill_poll.work);
|
|
bool radio_on;
|
|
|
|
if (sc->sc_flags & SC_OP_INVALID)
|
|
return;
|
|
|
|
radio_on = !ath_is_rfkill_set(sc);
|
|
|
|
/*
|
|
* enable/disable radio only when there is a
|
|
* state change in RF switch
|
|
*/
|
|
if (radio_on == !!(sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED)) {
|
|
enum rfkill_state state;
|
|
|
|
if (sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED) {
|
|
state = radio_on ? RFKILL_STATE_SOFT_BLOCKED
|
|
: RFKILL_STATE_HARD_BLOCKED;
|
|
} else if (radio_on) {
|
|
ath_radio_enable(sc);
|
|
state = RFKILL_STATE_UNBLOCKED;
|
|
} else {
|
|
ath_radio_disable(sc);
|
|
state = RFKILL_STATE_HARD_BLOCKED;
|
|
}
|
|
|
|
if (state == RFKILL_STATE_HARD_BLOCKED)
|
|
sc->sc_flags |= SC_OP_RFKILL_HW_BLOCKED;
|
|
else
|
|
sc->sc_flags &= ~SC_OP_RFKILL_HW_BLOCKED;
|
|
|
|
rfkill_force_state(sc->rf_kill.rfkill, state);
|
|
}
|
|
|
|
queue_delayed_work(sc->hw->workqueue, &sc->rf_kill.rfkill_poll,
|
|
msecs_to_jiffies(ATH_RFKILL_POLL_INTERVAL));
|
|
}
|
|
|
|
/* s/w rfkill handler */
|
|
static int ath_sw_toggle_radio(void *data, enum rfkill_state state)
|
|
{
|
|
struct ath_softc *sc = data;
|
|
|
|
switch (state) {
|
|
case RFKILL_STATE_SOFT_BLOCKED:
|
|
if (!(sc->sc_flags & (SC_OP_RFKILL_HW_BLOCKED |
|
|
SC_OP_RFKILL_SW_BLOCKED)))
|
|
ath_radio_disable(sc);
|
|
sc->sc_flags |= SC_OP_RFKILL_SW_BLOCKED;
|
|
return 0;
|
|
case RFKILL_STATE_UNBLOCKED:
|
|
if ((sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED)) {
|
|
sc->sc_flags &= ~SC_OP_RFKILL_SW_BLOCKED;
|
|
if (sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED) {
|
|
DPRINTF(sc, ATH_DBG_FATAL, "Can't turn on the"
|
|
"radio as it is disabled by h/w \n");
|
|
return -EPERM;
|
|
}
|
|
ath_radio_enable(sc);
|
|
}
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
/* Init s/w rfkill */
|
|
static int ath_init_sw_rfkill(struct ath_softc *sc)
|
|
{
|
|
sc->rf_kill.rfkill = rfkill_allocate(wiphy_dev(sc->hw->wiphy),
|
|
RFKILL_TYPE_WLAN);
|
|
if (!sc->rf_kill.rfkill) {
|
|
DPRINTF(sc, ATH_DBG_FATAL, "Failed to allocate rfkill\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name),
|
|
"ath9k-%s:rfkill", wiphy_name(sc->hw->wiphy));
|
|
sc->rf_kill.rfkill->name = sc->rf_kill.rfkill_name;
|
|
sc->rf_kill.rfkill->data = sc;
|
|
sc->rf_kill.rfkill->toggle_radio = ath_sw_toggle_radio;
|
|
sc->rf_kill.rfkill->state = RFKILL_STATE_UNBLOCKED;
|
|
sc->rf_kill.rfkill->user_claim_unsupported = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Deinitialize rfkill */
|
|
static void ath_deinit_rfkill(struct ath_softc *sc)
|
|
{
|
|
if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
|
|
cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
|
|
|
|
if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) {
|
|
rfkill_unregister(sc->rf_kill.rfkill);
|
|
sc->sc_flags &= ~SC_OP_RFKILL_REGISTERED;
|
|
sc->rf_kill.rfkill = NULL;
|
|
}
|
|
}
|
|
#endif /* CONFIG_RFKILL */
|
|
|
|
static int ath_detach(struct ath_softc *sc)
|
|
{
|
|
struct ieee80211_hw *hw = sc->hw;
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Detach ATH hw\n", __func__);
|
|
|
|
/* Deinit LED control */
|
|
ath_deinit_leds(sc);
|
|
|
|
#ifdef CONFIG_RFKILL
|
|
/* deinit rfkill */
|
|
ath_deinit_rfkill(sc);
|
|
#endif
|
|
|
|
/* Unregister hw */
|
|
|
|
ieee80211_unregister_hw(hw);
|
|
|
|
/* unregister Rate control */
|
|
ath_rate_control_unregister();
|
|
|
|
/* tx/rx cleanup */
|
|
|
|
ath_rx_cleanup(sc);
|
|
ath_tx_cleanup(sc);
|
|
|
|
/* Deinit */
|
|
|
|
ath_deinit(sc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ath_attach(u16 devid,
|
|
struct ath_softc *sc)
|
|
{
|
|
struct ieee80211_hw *hw = sc->hw;
|
|
int error = 0;
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Attach ATH hw\n", __func__);
|
|
|
|
error = ath_init(devid, sc);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
/* get mac address from hardware and set in mac80211 */
|
|
|
|
SET_IEEE80211_PERM_ADDR(hw, sc->sc_myaddr);
|
|
|
|
/* setup channels and rates */
|
|
|
|
sc->sbands[IEEE80211_BAND_2GHZ].channels =
|
|
sc->channels[IEEE80211_BAND_2GHZ];
|
|
sc->sbands[IEEE80211_BAND_2GHZ].bitrates =
|
|
sc->rates[IEEE80211_BAND_2GHZ];
|
|
sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
|
|
|
|
if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT)
|
|
/* Setup HT capabilities for 2.4Ghz*/
|
|
setup_ht_cap(&sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
|
|
|
|
hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
|
|
&sc->sbands[IEEE80211_BAND_2GHZ];
|
|
|
|
if (test_bit(ATH9K_MODE_11A, sc->sc_ah->ah_caps.wireless_modes)) {
|
|
sc->sbands[IEEE80211_BAND_5GHZ].channels =
|
|
sc->channels[IEEE80211_BAND_5GHZ];
|
|
sc->sbands[IEEE80211_BAND_5GHZ].bitrates =
|
|
sc->rates[IEEE80211_BAND_5GHZ];
|
|
sc->sbands[IEEE80211_BAND_5GHZ].band =
|
|
IEEE80211_BAND_5GHZ;
|
|
|
|
if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT)
|
|
/* Setup HT capabilities for 5Ghz*/
|
|
setup_ht_cap(&sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
|
|
|
|
hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
|
|
&sc->sbands[IEEE80211_BAND_5GHZ];
|
|
}
|
|
|
|
hw->queues = 4;
|
|
hw->sta_data_size = sizeof(struct ath_node);
|
|
|
|
/* Register rate control */
|
|
hw->rate_control_algorithm = "ath9k_rate_control";
|
|
error = ath_rate_control_register();
|
|
if (error != 0) {
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unable to register rate control "
|
|
"algorithm:%d\n", __func__, error);
|
|
ath_rate_control_unregister();
|
|
goto bad;
|
|
}
|
|
|
|
error = ieee80211_register_hw(hw);
|
|
if (error != 0) {
|
|
ath_rate_control_unregister();
|
|
goto bad;
|
|
}
|
|
|
|
/* Initialize LED control */
|
|
ath_init_leds(sc);
|
|
|
|
#ifdef CONFIG_RFKILL
|
|
/* Initialze h/w Rfkill */
|
|
if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
|
|
INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll);
|
|
|
|
/* Initialize s/w rfkill */
|
|
if (ath_init_sw_rfkill(sc))
|
|
goto detach;
|
|
#endif
|
|
|
|
/* initialize tx/rx engine */
|
|
|
|
error = ath_tx_init(sc, ATH_TXBUF);
|
|
if (error != 0)
|
|
goto detach;
|
|
|
|
error = ath_rx_init(sc, ATH_RXBUF);
|
|
if (error != 0)
|
|
goto detach;
|
|
|
|
return 0;
|
|
detach:
|
|
ath_detach(sc);
|
|
bad:
|
|
return error;
|
|
}
|
|
|
|
static int ath9k_start(struct ieee80211_hw *hw)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
struct ieee80211_channel *curchan = hw->conf.channel;
|
|
int error = 0, pos;
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Starting driver with "
|
|
"initial channel: %d MHz\n", __func__, curchan->center_freq);
|
|
|
|
/* setup initial channel */
|
|
|
|
pos = ath_get_channel(sc, curchan);
|
|
if (pos == -1) {
|
|
DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid channel\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
sc->sc_ah->ah_channels[pos].chanmode =
|
|
(curchan->band == IEEE80211_BAND_2GHZ) ? CHANNEL_G : CHANNEL_A;
|
|
|
|
/* open ath_dev */
|
|
error = ath_open(sc, &sc->sc_ah->ah_channels[pos]);
|
|
if (error) {
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unable to complete ath_open\n", __func__);
|
|
return error;
|
|
}
|
|
|
|
#ifdef CONFIG_RFKILL
|
|
/* Start rfkill polling */
|
|
if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
|
|
queue_delayed_work(sc->hw->workqueue,
|
|
&sc->rf_kill.rfkill_poll, 0);
|
|
|
|
if (!(sc->sc_flags & SC_OP_RFKILL_REGISTERED)) {
|
|
if (rfkill_register(sc->rf_kill.rfkill)) {
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"Unable to register rfkill\n");
|
|
rfkill_free(sc->rf_kill.rfkill);
|
|
|
|
/* Deinitialize the device */
|
|
if (sc->pdev->irq)
|
|
free_irq(sc->pdev->irq, sc);
|
|
ath_detach(sc);
|
|
pci_iounmap(sc->pdev, sc->mem);
|
|
pci_release_region(sc->pdev, 0);
|
|
pci_disable_device(sc->pdev);
|
|
ieee80211_free_hw(hw);
|
|
return -EIO;
|
|
} else {
|
|
sc->sc_flags |= SC_OP_RFKILL_REGISTERED;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
ieee80211_wake_queues(hw);
|
|
return 0;
|
|
}
|
|
|
|
static int ath9k_tx(struct ieee80211_hw *hw,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
|
|
struct ath_softc *sc = hw->priv;
|
|
struct ath_tx_control txctl;
|
|
int hdrlen, padsize;
|
|
|
|
memset(&txctl, 0, sizeof(struct ath_tx_control));
|
|
|
|
/*
|
|
* As a temporary workaround, assign seq# here; this will likely need
|
|
* to be cleaned up to work better with Beacon transmission and virtual
|
|
* BSSes.
|
|
*/
|
|
if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
|
|
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
|
|
if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
|
|
sc->seq_no += 0x10;
|
|
hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
|
|
hdr->seq_ctrl |= cpu_to_le16(sc->seq_no);
|
|
}
|
|
|
|
/* Add the padding after the header if this is not already done */
|
|
hdrlen = ieee80211_get_hdrlen_from_skb(skb);
|
|
if (hdrlen & 3) {
|
|
padsize = hdrlen % 4;
|
|
if (skb_headroom(skb) < padsize)
|
|
return -1;
|
|
skb_push(skb, padsize);
|
|
memmove(skb->data, skb->data + padsize, hdrlen);
|
|
}
|
|
|
|
/* Check if a tx queue is available */
|
|
|
|
txctl.txq = ath_test_get_txq(sc, skb);
|
|
if (!txctl.txq)
|
|
goto exit;
|
|
|
|
DPRINTF(sc, ATH_DBG_XMIT, "%s: transmitting packet, skb: %p\n",
|
|
__func__,
|
|
skb);
|
|
|
|
if (ath_tx_start(sc, skb, &txctl) != 0) {
|
|
DPRINTF(sc, ATH_DBG_XMIT, "%s: TX failed\n", __func__);
|
|
goto exit;
|
|
}
|
|
|
|
return 0;
|
|
exit:
|
|
dev_kfree_skb_any(skb);
|
|
return 0;
|
|
}
|
|
|
|
static void ath9k_stop(struct ieee80211_hw *hw)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
int error;
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Driver halt\n", __func__);
|
|
|
|
error = ath_suspend(sc);
|
|
if (error)
|
|
DPRINTF(sc, ATH_DBG_CONFIG,
|
|
"%s: Device is no longer present\n", __func__);
|
|
|
|
ieee80211_stop_queues(hw);
|
|
|
|
#ifdef CONFIG_RFKILL
|
|
if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
|
|
cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
|
|
#endif
|
|
}
|
|
|
|
static int ath9k_add_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
int error, ic_opmode = 0;
|
|
|
|
/* Support only vap for now */
|
|
|
|
if (sc->sc_nvaps)
|
|
return -ENOBUFS;
|
|
|
|
switch (conf->type) {
|
|
case NL80211_IFTYPE_STATION:
|
|
ic_opmode = ATH9K_M_STA;
|
|
break;
|
|
case NL80211_IFTYPE_ADHOC:
|
|
ic_opmode = ATH9K_M_IBSS;
|
|
break;
|
|
case NL80211_IFTYPE_AP:
|
|
ic_opmode = ATH9K_M_HOSTAP;
|
|
break;
|
|
default:
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Interface type %d not yet supported\n",
|
|
__func__, conf->type);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Attach a VAP of type: %d\n",
|
|
__func__,
|
|
ic_opmode);
|
|
|
|
error = ath_vap_attach(sc, 0, conf->vif, ic_opmode);
|
|
if (error) {
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unable to attach vap, error: %d\n",
|
|
__func__, error);
|
|
return error;
|
|
}
|
|
|
|
if (conf->type == NL80211_IFTYPE_AP) {
|
|
/* TODO: is this a suitable place to start ANI for AP mode? */
|
|
/* Start ANI */
|
|
mod_timer(&sc->sc_ani.timer,
|
|
jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ath9k_remove_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
struct ath_vap *avp;
|
|
int error;
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Detach VAP\n", __func__);
|
|
|
|
avp = sc->sc_vaps[0];
|
|
if (avp == NULL) {
|
|
DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid interface\n",
|
|
__func__);
|
|
return;
|
|
}
|
|
|
|
#ifdef CONFIG_SLOW_ANT_DIV
|
|
ath_slow_ant_div_stop(&sc->sc_antdiv);
|
|
#endif
|
|
/* Stop ANI */
|
|
del_timer_sync(&sc->sc_ani.timer);
|
|
|
|
/* Update ratectrl */
|
|
ath_rate_newstate(sc, avp);
|
|
|
|
/* Reclaim beacon resources */
|
|
if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP ||
|
|
sc->sc_ah->ah_opmode == ATH9K_M_IBSS) {
|
|
ath9k_hw_stoptxdma(sc->sc_ah, sc->sc_bhalq);
|
|
ath_beacon_return(sc, avp);
|
|
}
|
|
|
|
/* Set interrupt mask */
|
|
sc->sc_imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS);
|
|
ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_imask & ~ATH9K_INT_GLOBAL);
|
|
sc->sc_flags &= ~SC_OP_BEACONS;
|
|
|
|
error = ath_vap_detach(sc, 0);
|
|
if (error)
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unable to detach vap, error: %d\n",
|
|
__func__, error);
|
|
}
|
|
|
|
static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
struct ieee80211_channel *curchan = hw->conf.channel;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
int pos;
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set channel: %d MHz\n",
|
|
__func__,
|
|
curchan->center_freq);
|
|
|
|
/* Update chainmask */
|
|
ath_update_chainmask(sc, conf->ht.enabled);
|
|
|
|
pos = ath_get_channel(sc, curchan);
|
|
if (pos == -1) {
|
|
DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid channel\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
sc->sc_ah->ah_channels[pos].chanmode =
|
|
(curchan->band == IEEE80211_BAND_2GHZ) ?
|
|
CHANNEL_G : CHANNEL_A;
|
|
|
|
if (sc->sc_curaid && hw->conf.ht.enabled)
|
|
sc->sc_ah->ah_channels[pos].chanmode =
|
|
ath_get_extchanmode(sc, curchan);
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_POWER)
|
|
sc->sc_config.txpowlimit = 2 * conf->power_level;
|
|
|
|
/* set h/w channel */
|
|
if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0)
|
|
DPRINTF(sc, ATH_DBG_FATAL, "%s: Unable to set channel\n",
|
|
__func__);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ath9k_config_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_if_conf *conf)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
struct ath_hal *ah = sc->sc_ah;
|
|
struct ath_vap *avp;
|
|
u32 rfilt = 0;
|
|
int error, i;
|
|
|
|
avp = sc->sc_vaps[0];
|
|
if (avp == NULL) {
|
|
DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid interface\n",
|
|
__func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* TODO: Need to decide which hw opmode to use for multi-interface
|
|
* cases */
|
|
if (vif->type == NL80211_IFTYPE_AP &&
|
|
ah->ah_opmode != ATH9K_M_HOSTAP) {
|
|
ah->ah_opmode = ATH9K_M_HOSTAP;
|
|
ath9k_hw_setopmode(ah);
|
|
ath9k_hw_write_associd(ah, sc->sc_myaddr, 0);
|
|
/* Request full reset to get hw opmode changed properly */
|
|
sc->sc_flags |= SC_OP_FULL_RESET;
|
|
}
|
|
|
|
if ((conf->changed & IEEE80211_IFCC_BSSID) &&
|
|
!is_zero_ether_addr(conf->bssid)) {
|
|
switch (vif->type) {
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_ADHOC:
|
|
/* Update ratectrl about the new state */
|
|
ath_rate_newstate(sc, avp);
|
|
|
|
/* Set BSSID */
|
|
memcpy(sc->sc_curbssid, conf->bssid, ETH_ALEN);
|
|
sc->sc_curaid = 0;
|
|
ath9k_hw_write_associd(sc->sc_ah, sc->sc_curbssid,
|
|
sc->sc_curaid);
|
|
|
|
/* Set aggregation protection mode parameters */
|
|
sc->sc_config.ath_aggr_prot = 0;
|
|
|
|
/*
|
|
* Reset our TSF so that its value is lower than the
|
|
* beacon that we are trying to catch.
|
|
* Only then hw will update its TSF register with the
|
|
* new beacon. Reset the TSF before setting the BSSID
|
|
* to avoid allowing in any frames that would update
|
|
* our TSF only to have us clear it
|
|
* immediately thereafter.
|
|
*/
|
|
ath9k_hw_reset_tsf(sc->sc_ah);
|
|
|
|
/* Disable BMISS interrupt when we're not associated */
|
|
ath9k_hw_set_interrupts(sc->sc_ah,
|
|
sc->sc_imask &
|
|
~(ATH9K_INT_SWBA | ATH9K_INT_BMISS));
|
|
sc->sc_imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS);
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG,
|
|
"%s: RX filter 0x%x bssid %pM aid 0x%x\n",
|
|
__func__, rfilt,
|
|
sc->sc_curbssid, sc->sc_curaid);
|
|
|
|
/* need to reconfigure the beacon */
|
|
sc->sc_flags &= ~SC_OP_BEACONS ;
|
|
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((conf->changed & IEEE80211_IFCC_BEACON) &&
|
|
((vif->type == NL80211_IFTYPE_ADHOC) ||
|
|
(vif->type == NL80211_IFTYPE_AP))) {
|
|
/*
|
|
* Allocate and setup the beacon frame.
|
|
*
|
|
* Stop any previous beacon DMA. This may be
|
|
* necessary, for example, when an ibss merge
|
|
* causes reconfiguration; we may be called
|
|
* with beacon transmission active.
|
|
*/
|
|
ath9k_hw_stoptxdma(sc->sc_ah, sc->sc_bhalq);
|
|
|
|
error = ath_beacon_alloc(sc, 0);
|
|
if (error != 0)
|
|
return error;
|
|
|
|
ath_beacon_sync(sc, 0);
|
|
}
|
|
|
|
/* Check for WLAN_CAPABILITY_PRIVACY ? */
|
|
if ((avp->av_opmode != NL80211_IFTYPE_STATION)) {
|
|
for (i = 0; i < IEEE80211_WEP_NKID; i++)
|
|
if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i))
|
|
ath9k_hw_keysetmac(sc->sc_ah,
|
|
(u16)i,
|
|
sc->sc_curbssid);
|
|
}
|
|
|
|
/* Only legacy IBSS for now */
|
|
if (vif->type == NL80211_IFTYPE_ADHOC)
|
|
ath_update_chainmask(sc, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define SUPPORTED_FILTERS \
|
|
(FIF_PROMISC_IN_BSS | \
|
|
FIF_ALLMULTI | \
|
|
FIF_CONTROL | \
|
|
FIF_OTHER_BSS | \
|
|
FIF_BCN_PRBRESP_PROMISC | \
|
|
FIF_FCSFAIL)
|
|
|
|
/* FIXME: sc->sc_full_reset ? */
|
|
static void ath9k_configure_filter(struct ieee80211_hw *hw,
|
|
unsigned int changed_flags,
|
|
unsigned int *total_flags,
|
|
int mc_count,
|
|
struct dev_mc_list *mclist)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
u32 rfilt;
|
|
|
|
changed_flags &= SUPPORTED_FILTERS;
|
|
*total_flags &= SUPPORTED_FILTERS;
|
|
|
|
sc->rx_filter = *total_flags;
|
|
rfilt = ath_calcrxfilter(sc);
|
|
ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
|
|
|
|
if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
|
|
if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
|
|
ath9k_hw_write_associd(sc->sc_ah, ath_bcast_mac, 0);
|
|
}
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set HW RX filter: 0x%x\n",
|
|
__func__, sc->rx_filter);
|
|
}
|
|
|
|
/* Only a single interface is currently supported,
|
|
so pass 0 as the interface id to ath_node_attach */
|
|
|
|
static void ath9k_sta_notify(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
enum sta_notify_cmd cmd,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
|
|
switch (cmd) {
|
|
case STA_NOTIFY_ADD:
|
|
ath_node_attach(sc, sta, 0);
|
|
break;
|
|
case STA_NOTIFY_REMOVE:
|
|
ath_node_detach(sc, sta);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int ath9k_conf_tx(struct ieee80211_hw *hw,
|
|
u16 queue,
|
|
const struct ieee80211_tx_queue_params *params)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
struct ath9k_tx_queue_info qi;
|
|
int ret = 0, qnum;
|
|
|
|
if (queue >= WME_NUM_AC)
|
|
return 0;
|
|
|
|
qi.tqi_aifs = params->aifs;
|
|
qi.tqi_cwmin = params->cw_min;
|
|
qi.tqi_cwmax = params->cw_max;
|
|
qi.tqi_burstTime = params->txop;
|
|
qnum = ath_get_hal_qnum(queue, sc);
|
|
|
|
DPRINTF(sc, ATH_DBG_CONFIG,
|
|
"%s: Configure tx [queue/halq] [%d/%d], "
|
|
"aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
|
|
__func__,
|
|
queue,
|
|
qnum,
|
|
params->aifs,
|
|
params->cw_min,
|
|
params->cw_max,
|
|
params->txop);
|
|
|
|
ret = ath_txq_update(sc, qnum, &qi);
|
|
if (ret)
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: TXQ Update failed\n", __func__);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ath9k_set_key(struct ieee80211_hw *hw,
|
|
enum set_key_cmd cmd,
|
|
const u8 *local_addr,
|
|
const u8 *addr,
|
|
struct ieee80211_key_conf *key)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
int ret = 0;
|
|
|
|
DPRINTF(sc, ATH_DBG_KEYCACHE, " %s: Set HW Key\n", __func__);
|
|
|
|
switch (cmd) {
|
|
case SET_KEY:
|
|
ret = ath_key_config(sc, addr, key);
|
|
if (!ret) {
|
|
set_bit(key->keyidx, sc->sc_keymap);
|
|
key->hw_key_idx = key->keyidx;
|
|
/* push IV and Michael MIC generation to stack */
|
|
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
if (key->alg == ALG_TKIP)
|
|
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
|
|
}
|
|
break;
|
|
case DISABLE_KEY:
|
|
ath_key_delete(sc, key);
|
|
clear_bit(key->keyidx, sc->sc_keymap);
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
u32 changed)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
|
|
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed PREAMBLE %d\n",
|
|
__func__,
|
|
bss_conf->use_short_preamble);
|
|
if (bss_conf->use_short_preamble)
|
|
sc->sc_flags |= SC_OP_PREAMBLE_SHORT;
|
|
else
|
|
sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT;
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ERP_CTS_PROT) {
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed CTS PROT %d\n",
|
|
__func__,
|
|
bss_conf->use_cts_prot);
|
|
if (bss_conf->use_cts_prot &&
|
|
hw->conf.channel->band != IEEE80211_BAND_5GHZ)
|
|
sc->sc_flags |= SC_OP_PROTECT_ENABLE;
|
|
else
|
|
sc->sc_flags &= ~SC_OP_PROTECT_ENABLE;
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_HT) {
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed HT\n",
|
|
__func__);
|
|
ath9k_ht_conf(sc, bss_conf);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ASSOC) {
|
|
DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed ASSOC %d\n",
|
|
__func__,
|
|
bss_conf->assoc);
|
|
ath9k_bss_assoc_info(sc, bss_conf);
|
|
}
|
|
}
|
|
|
|
static u64 ath9k_get_tsf(struct ieee80211_hw *hw)
|
|
{
|
|
u64 tsf;
|
|
struct ath_softc *sc = hw->priv;
|
|
struct ath_hal *ah = sc->sc_ah;
|
|
|
|
tsf = ath9k_hw_gettsf64(ah);
|
|
|
|
return tsf;
|
|
}
|
|
|
|
static void ath9k_reset_tsf(struct ieee80211_hw *hw)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
struct ath_hal *ah = sc->sc_ah;
|
|
|
|
ath9k_hw_reset_tsf(ah);
|
|
}
|
|
|
|
static int ath9k_ampdu_action(struct ieee80211_hw *hw,
|
|
enum ieee80211_ampdu_mlme_action action,
|
|
struct ieee80211_sta *sta,
|
|
u16 tid, u16 *ssn)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
int ret = 0;
|
|
|
|
switch (action) {
|
|
case IEEE80211_AMPDU_RX_START:
|
|
ret = ath_rx_aggr_start(sc, sta, tid, ssn);
|
|
if (ret < 0)
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unable to start RX aggregation\n",
|
|
__func__);
|
|
break;
|
|
case IEEE80211_AMPDU_RX_STOP:
|
|
ret = ath_rx_aggr_stop(sc, sta, tid);
|
|
if (ret < 0)
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unable to stop RX aggregation\n",
|
|
__func__);
|
|
break;
|
|
case IEEE80211_AMPDU_TX_START:
|
|
ret = ath_tx_aggr_start(sc, sta, tid, ssn);
|
|
if (ret < 0)
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unable to start TX aggregation\n",
|
|
__func__);
|
|
else
|
|
ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid);
|
|
break;
|
|
case IEEE80211_AMPDU_TX_STOP:
|
|
ret = ath_tx_aggr_stop(sc, sta, tid);
|
|
if (ret < 0)
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unable to stop TX aggregation\n",
|
|
__func__);
|
|
|
|
ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid);
|
|
break;
|
|
default:
|
|
DPRINTF(sc, ATH_DBG_FATAL,
|
|
"%s: Unknown AMPDU action\n", __func__);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ath9k_no_fragmentation(struct ieee80211_hw *hw, u32 value)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static struct ieee80211_ops ath9k_ops = {
|
|
.tx = ath9k_tx,
|
|
.start = ath9k_start,
|
|
.stop = ath9k_stop,
|
|
.add_interface = ath9k_add_interface,
|
|
.remove_interface = ath9k_remove_interface,
|
|
.config = ath9k_config,
|
|
.config_interface = ath9k_config_interface,
|
|
.configure_filter = ath9k_configure_filter,
|
|
.sta_notify = ath9k_sta_notify,
|
|
.conf_tx = ath9k_conf_tx,
|
|
.bss_info_changed = ath9k_bss_info_changed,
|
|
.set_key = ath9k_set_key,
|
|
.get_tsf = ath9k_get_tsf,
|
|
.reset_tsf = ath9k_reset_tsf,
|
|
.ampdu_action = ath9k_ampdu_action,
|
|
.set_frag_threshold = ath9k_no_fragmentation,
|
|
};
|
|
|
|
static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
{
|
|
void __iomem *mem;
|
|
struct ath_softc *sc;
|
|
struct ieee80211_hw *hw;
|
|
const char *athname;
|
|
u8 csz;
|
|
u32 val;
|
|
int ret = 0;
|
|
|
|
if (pci_enable_device(pdev))
|
|
return -EIO;
|
|
|
|
/* XXX 32-bit addressing only */
|
|
if (pci_set_dma_mask(pdev, 0xffffffff)) {
|
|
printk(KERN_ERR "ath_pci: 32-bit DMA not available\n");
|
|
ret = -ENODEV;
|
|
goto bad;
|
|
}
|
|
|
|
/*
|
|
* Cache line size is used to size and align various
|
|
* structures used to communicate with the hardware.
|
|
*/
|
|
pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &csz);
|
|
if (csz == 0) {
|
|
/*
|
|
* Linux 2.4.18 (at least) writes the cache line size
|
|
* register as a 16-bit wide register which is wrong.
|
|
* We must have this setup properly for rx buffer
|
|
* DMA to work so force a reasonable value here if it
|
|
* comes up zero.
|
|
*/
|
|
csz = L1_CACHE_BYTES / sizeof(u32);
|
|
pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, csz);
|
|
}
|
|
/*
|
|
* The default setting of latency timer yields poor results,
|
|
* set it to the value used by other systems. It may be worth
|
|
* tweaking this setting more.
|
|
*/
|
|
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xa8);
|
|
|
|
pci_set_master(pdev);
|
|
|
|
/*
|
|
* Disable the RETRY_TIMEOUT register (0x41) to keep
|
|
* PCI Tx retries from interfering with C3 CPU state.
|
|
*/
|
|
pci_read_config_dword(pdev, 0x40, &val);
|
|
if ((val & 0x0000ff00) != 0)
|
|
pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
|
|
|
|
ret = pci_request_region(pdev, 0, "ath9k");
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "PCI memory region reserve error\n");
|
|
ret = -ENODEV;
|
|
goto bad;
|
|
}
|
|
|
|
mem = pci_iomap(pdev, 0, 0);
|
|
if (!mem) {
|
|
printk(KERN_ERR "PCI memory map error\n") ;
|
|
ret = -EIO;
|
|
goto bad1;
|
|
}
|
|
|
|
hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops);
|
|
if (hw == NULL) {
|
|
printk(KERN_ERR "ath_pci: no memory for ieee80211_hw\n");
|
|
goto bad2;
|
|
}
|
|
|
|
hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
|
|
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
|
|
IEEE80211_HW_SIGNAL_DBM |
|
|
IEEE80211_HW_NOISE_DBM |
|
|
IEEE80211_HW_AMPDU_AGGREGATION;
|
|
|
|
hw->wiphy->interface_modes =
|
|
BIT(NL80211_IFTYPE_AP) |
|
|
BIT(NL80211_IFTYPE_STATION) |
|
|
BIT(NL80211_IFTYPE_ADHOC);
|
|
|
|
SET_IEEE80211_DEV(hw, &pdev->dev);
|
|
pci_set_drvdata(pdev, hw);
|
|
|
|
sc = hw->priv;
|
|
sc->hw = hw;
|
|
sc->pdev = pdev;
|
|
sc->mem = mem;
|
|
|
|
if (ath_attach(id->device, sc) != 0) {
|
|
ret = -ENODEV;
|
|
goto bad3;
|
|
}
|
|
|
|
/* setup interrupt service routine */
|
|
|
|
if (request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath", sc)) {
|
|
printk(KERN_ERR "%s: request_irq failed\n",
|
|
wiphy_name(hw->wiphy));
|
|
ret = -EIO;
|
|
goto bad4;
|
|
}
|
|
|
|
athname = ath9k_hw_probe(id->vendor, id->device);
|
|
|
|
printk(KERN_INFO "%s: %s: mem=0x%lx, irq=%d\n",
|
|
wiphy_name(hw->wiphy),
|
|
athname ? athname : "Atheros ???",
|
|
(unsigned long)mem, pdev->irq);
|
|
|
|
return 0;
|
|
bad4:
|
|
ath_detach(sc);
|
|
bad3:
|
|
ieee80211_free_hw(hw);
|
|
bad2:
|
|
pci_iounmap(pdev, mem);
|
|
bad1:
|
|
pci_release_region(pdev, 0);
|
|
bad:
|
|
pci_disable_device(pdev);
|
|
return ret;
|
|
}
|
|
|
|
static void ath_pci_remove(struct pci_dev *pdev)
|
|
{
|
|
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
|
|
struct ath_softc *sc = hw->priv;
|
|
enum ath9k_int status;
|
|
|
|
if (pdev->irq) {
|
|
ath9k_hw_set_interrupts(sc->sc_ah, 0);
|
|
/* clear the ISR */
|
|
ath9k_hw_getisr(sc->sc_ah, &status);
|
|
sc->sc_flags |= SC_OP_INVALID;
|
|
free_irq(pdev->irq, sc);
|
|
}
|
|
ath_detach(sc);
|
|
|
|
pci_iounmap(pdev, sc->mem);
|
|
pci_release_region(pdev, 0);
|
|
pci_disable_device(pdev);
|
|
ieee80211_free_hw(hw);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
|
|
struct ath_softc *sc = hw->priv;
|
|
|
|
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
|
|
|
|
#ifdef CONFIG_RFKILL
|
|
if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
|
|
cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
|
|
#endif
|
|
|
|
pci_save_state(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_power_state(pdev, 3);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ath_pci_resume(struct pci_dev *pdev)
|
|
{
|
|
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
|
|
struct ath_softc *sc = hw->priv;
|
|
u32 val;
|
|
int err;
|
|
|
|
err = pci_enable_device(pdev);
|
|
if (err)
|
|
return err;
|
|
pci_restore_state(pdev);
|
|
/*
|
|
* Suspend/Resume resets the PCI configuration space, so we have to
|
|
* re-disable the RETRY_TIMEOUT register (0x41) to keep
|
|
* PCI Tx retries from interfering with C3 CPU state
|
|
*/
|
|
pci_read_config_dword(pdev, 0x40, &val);
|
|
if ((val & 0x0000ff00) != 0)
|
|
pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
|
|
|
|
/* Enable LED */
|
|
ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN,
|
|
AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
|
|
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
|
|
|
|
#ifdef CONFIG_RFKILL
|
|
/*
|
|
* check the h/w rfkill state on resume
|
|
* and start the rfkill poll timer
|
|
*/
|
|
if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
|
|
queue_delayed_work(sc->hw->workqueue,
|
|
&sc->rf_kill.rfkill_poll, 0);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_PM */
|
|
|
|
MODULE_DEVICE_TABLE(pci, ath_pci_id_table);
|
|
|
|
static struct pci_driver ath_pci_driver = {
|
|
.name = "ath9k",
|
|
.id_table = ath_pci_id_table,
|
|
.probe = ath_pci_probe,
|
|
.remove = ath_pci_remove,
|
|
#ifdef CONFIG_PM
|
|
.suspend = ath_pci_suspend,
|
|
.resume = ath_pci_resume,
|
|
#endif /* CONFIG_PM */
|
|
};
|
|
|
|
static int __init init_ath_pci(void)
|
|
{
|
|
printk(KERN_INFO "%s: %s\n", dev_info, ATH_PCI_VERSION);
|
|
|
|
if (pci_register_driver(&ath_pci_driver) < 0) {
|
|
printk(KERN_ERR
|
|
"ath_pci: No devices found, driver not installed.\n");
|
|
pci_unregister_driver(&ath_pci_driver);
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
module_init(init_ath_pci);
|
|
|
|
static void __exit exit_ath_pci(void)
|
|
{
|
|
pci_unregister_driver(&ath_pci_driver);
|
|
printk(KERN_INFO "%s: driver unloaded\n", dev_info);
|
|
}
|
|
module_exit(exit_ath_pci);
|