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ath9k: Cleanup init/deinit routines

Browse source 
The device initialization and termination functions
were messy and convoluted. Introduce helper functions
to clarify init_softc() and simplify things in general.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2010-01-08 10:36:07 +05:30 committed by John W. Linville
parent 1b04b9308e
commit 285f2ddae0
7 changed files with 322 additions and 311 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
drivers/net/wireless/ath/ath9k/ahb.c
View file

@ -121,16 +121,16 @@ static int ath_ahb_probe(struct platform_device *pdev)
sc->mem = mem;
sc->irq = irq;
ret = ath_init_device(AR5416_AR9100_DEVID, sc, 0x0, &ath_ahb_bus_ops);
if (ret) {
dev_err(&pdev->dev, "failed to initialize device\n");
goto err_free_hw;
}
ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc);
if (ret) {
dev_err(&pdev->dev, "request_irq failed\n");
goto err_detach;
goto err_free_hw;
}
ret = ath9k_init_device(AR5416_AR9100_DEVID, sc, 0x0, &ath_ahb_bus_ops);
if (ret) {
dev_err(&pdev->dev, "failed to initialize device\n");
goto err_irq;
}
ah = sc->sc_ah;
@ -143,8 +143,8 @@ static int ath_ahb_probe(struct platform_device *pdev)
return 0;
err_detach:
ath_detach(sc);
err_irq:
free_irq(irq, sc);
err_free_hw:
ieee80211_free_hw(hw);
platform_set_drvdata(pdev, NULL);
@ -161,8 +161,12 @@ static int ath_ahb_remove(struct platform_device *pdev)
if (hw) {
struct ath_wiphy *aphy = hw->priv;
struct ath_softc *sc = aphy->sc;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
ath_cleanup(sc);
ath9k_deinit_device(sc);
free_irq(sc->irq, sc);
ieee80211_free_hw(sc->hw);
ath_bus_cleanup(common);
platform_set_drvdata(pdev, NULL);
}

7
drivers/net/wireless/ath/ath9k/ath9k.h
View file

@ -544,13 +544,12 @@ extern struct ieee80211_ops ath9k_ops;
extern int modparam_nohwcrypt;
irqreturn_t ath_isr(int irq, void *dev);
void ath_cleanup(struct ath_softc *sc);
int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
const struct ath_bus_ops *bus_ops);
void ath_detach(struct ath_softc *sc);
void ath9k_deinit_device(struct ath_softc *sc);
const char *ath_mac_bb_name(u32 mac_bb_version);
const char *ath_rf_name(u16 rf_version);
void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
struct ath9k_channel *ichan);
void ath_update_chainmask(struct ath_softc *sc, int is_ht);

4
drivers/net/wireless/ath/ath9k/hw.c
View file

@ -1242,7 +1242,7 @@ static void ath9k_hw_init_user_settings(struct ath_hw *ah)
ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
}
void ath9k_hw_detach(struct ath_hw *ah)
void ath9k_hw_deinit(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
@ -1260,7 +1260,7 @@ free_hw:
kfree(ah);
ah = NULL;
}
EXPORT_SYMBOL(ath9k_hw_detach);
EXPORT_SYMBOL(ath9k_hw_deinit);
/*******/
/* INI */

2
drivers/net/wireless/ath/ath9k/hw.h
View file

@ -616,7 +616,7 @@ static inline struct ath_regulatory *ath9k_hw_regulatory(struct ath_hw *ah)
/* Initialization, Detach, Reset */
const char *ath9k_hw_probe(u16 vendorid, u16 devid);
void ath9k_hw_detach(struct ath_hw *ah);
void ath9k_hw_deinit(struct ath_hw *ah);
int ath9k_hw_init(struct ath_hw *ah);
int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
bool bChannelChange);

537
drivers/net/wireless/ath/ath9k/init.c
View file

@ -128,7 +128,7 @@ static struct ieee80211_rate ath9k_legacy_rates[] = {
RATE(540, 0x0c, 0),
};
static void ath9k_uninit_hw(struct ath_softc *sc);
static void ath9k_deinit_softc(struct ath_softc *sc);
/*
* Read and write, they both share the same lock. We do this to serialize
@ -333,67 +333,13 @@ fail:
#undef DS2PHYS
}
static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
const struct ath_bus_ops *bus_ops)
static void ath9k_init_crypto(struct ath_softc *sc)
{
struct ath_hw *ah = NULL;
struct ath_common *common;
int r = 0, i;
int csz = 0;
int qnum;
/* XXX: hardware will not be ready until ath_open() being called */
sc->sc_flags |= SC_OP_INVALID;
spin_lock_init(&sc->wiphy_lock);
spin_lock_init(&sc->sc_resetlock);
spin_lock_init(&sc->sc_serial_rw);
spin_lock_init(&sc->sc_pm_lock);
mutex_init(&sc->mutex);
tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,
(unsigned long)sc);
ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
if (!ah)
return -ENOMEM;
ah->hw_version.devid = devid;
ah->hw_version.subsysid = subsysid;
sc->sc_ah = ah;
common = ath9k_hw_common(ah);
common->ops = &ath9k_common_ops;
common->bus_ops = bus_ops;
common->ah = ah;
common->hw = sc->hw;
common->priv = sc;
common->debug_mask = ath9k_debug;
/*
* Cache line size is used to size and align various
* structures used to communicate with the hardware.
*/
ath_read_cachesize(common, &csz);
/* XXX assert csz is non-zero */
common->cachelsz = csz << 2; /* convert to bytes */
r = ath9k_hw_init(ah);
if (r) {
ath_print(common, ATH_DBG_FATAL,
"Unable to initialize hardware; "
"initialization status: %d\n", r);
goto bad_free_hw;
}
if (ath9k_init_debug(ah) < 0) {
ath_print(common, ATH_DBG_FATAL,
"Unable to create debugfs files\n");
goto bad_free_hw;
}
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
int i = 0;
/* Get the hardware key cache size. */
common->keymax = ah->caps.keycache_size;
common->keymax = sc->sc_ah->caps.keycache_size;
if (common->keymax > ATH_KEYMAX) {
ath_print(common, ATH_DBG_ANY,
"Warning, using only %u entries in %u key cache\n",
@ -406,73 +352,9 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
* reset the contents on initial power up.
*/
for (i = 0; i < common->keymax; i++)
ath9k_hw_keyreset(ah, (u16) i);
ath9k_hw_keyreset(sc->sc_ah, (u16) i);
/* default to MONITOR mode */
sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR;
/*
* Allocate hardware transmit queues: one queue for
* beacon frames and one data queue for each QoS
* priority. Note that the hal handles reseting
* these queues at the needed time.
*/
sc->beacon.beaconq = ath9k_hw_beaconq_setup(ah);
if (sc->beacon.beaconq == -1) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup a beacon xmit queue\n");
r = -EIO;
goto bad2;
}
sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
if (sc->beacon.cabq == NULL) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup CAB xmit queue\n");
r = -EIO;
goto bad2;
}
sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
ath_cabq_update(sc);
for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++)
sc->tx.hwq_map[i] = -1;
/* Setup data queues */
/* NB: ensure BK queue is the lowest priority h/w queue */
if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for BK traffic\n");
r = -EIO;
goto bad2;
}
if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for BE traffic\n");
r = -EIO;
goto bad2;
}
if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for VI traffic\n");
r = -EIO;
goto bad2;
}
if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for VO traffic\n");
r = -EIO;
goto bad2;
}
/* Initializes the noise floor to a reasonable default value.
* Later on this will be updated during ANI processing. */
common->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR;
setup_timer(&common->ani.timer, ath_ani_calibrate, (unsigned long)sc);
if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
if (ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_CIPHER,
ATH9K_CIPHER_TKIP, NULL)) {
/*
* Whether we should enable h/w TKIP MIC.
@ -480,8 +362,7 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
* report WMM capable, so it's always safe to turn on
* TKIP MIC in this case.
*/
ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC,
0, 1, NULL);
ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, 0, 1, NULL);
}
/*
@ -490,46 +371,107 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
* With split mic keys the number of stations is limited
* to 27 otherwise 59.
*/
if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
if (ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_CIPHER,
ATH9K_CIPHER_TKIP, NULL)
&& ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
&& ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_CIPHER,
ATH9K_CIPHER_MIC, NULL)
&& ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT,
&& ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_TKIP_SPLIT,
0, NULL))
common->splitmic = 1;
/* turn on mcast key search if possible */
if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL))
(void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1,
1, NULL);
if (!ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL))
(void)ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_MCAST_KEYSRCH,
1, 1, NULL);
sc->config.txpowlimit = ATH_TXPOWER_MAX;
}
/* 11n Capabilities */
if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
sc->sc_flags |= SC_OP_TXAGGR;
sc->sc_flags |= SC_OP_RXAGGR;
static int ath9k_init_btcoex(struct ath_softc *sc)
{
int r, qnum;
switch (sc->sc_ah->btcoex_hw.scheme) {
case ATH_BTCOEX_CFG_NONE:
break;
case ATH_BTCOEX_CFG_2WIRE:
ath9k_hw_btcoex_init_2wire(sc->sc_ah);
break;
case ATH_BTCOEX_CFG_3WIRE:
ath9k_hw_btcoex_init_3wire(sc->sc_ah);
r = ath_init_btcoex_timer(sc);
if (r)
return -1;
qnum = ath_tx_get_qnum(sc, ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BE);
ath9k_hw_init_btcoex_hw(sc->sc_ah, qnum);
sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
break;
default:
WARN_ON(1);
break;
}
common->tx_chainmask = ah->caps.tx_chainmask;
common->rx_chainmask = ah->caps.rx_chainmask;
return 0;
}
ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL);
sc->rx.defant = ath9k_hw_getdefantenna(ah);
static int ath9k_init_queues(struct ath_softc *sc)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
int i = 0;
if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++)
sc->tx.hwq_map[i] = -1;
sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */
/* initialize beacon slots */
for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) {
sc->beacon.bslot[i] = NULL;
sc->beacon.bslot_aphy[i] = NULL;
sc->beacon.beaconq = ath9k_hw_beaconq_setup(sc->sc_ah);
if (sc->beacon.beaconq == -1) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup a beacon xmit queue\n");
goto err;
}
/* setup channels and rates */
sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
if (sc->beacon.cabq == NULL) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup CAB xmit queue\n");
goto err;
}
sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
ath_cabq_update(sc);
if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for BK traffic\n");
goto err;
}
if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for BE traffic\n");
goto err;
}
if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for VI traffic\n");
goto err;
}
if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for VO traffic\n");
goto err;
}
return 0;
err:
for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
if (ATH_TXQ_SETUP(sc, i))
ath_tx_cleanupq(sc, &sc->tx.txq[i]);
return -EIO;
}
static void ath9k_init_channels_rates(struct ath_softc *sc)
{
if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) {
sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable;
sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
@ -550,41 +492,133 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
sc->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
ARRAY_SIZE(ath9k_legacy_rates) - 4;
}
}
switch (ah->btcoex_hw.scheme) {
case ATH_BTCOEX_CFG_NONE:
break;
case ATH_BTCOEX_CFG_2WIRE:
ath9k_hw_btcoex_init_2wire(ah);
break;
case ATH_BTCOEX_CFG_3WIRE:
ath9k_hw_btcoex_init_3wire(ah);
r = ath_init_btcoex_timer(sc);
if (r)
goto bad2;
qnum = ath_tx_get_qnum(sc, ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BE);
ath9k_hw_init_btcoex_hw(ah, qnum);
sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
break;
default:
WARN_ON(1);
break;
static void ath9k_init_misc(struct ath_softc *sc)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
int i = 0;
common->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR;
setup_timer(&common->ani.timer, ath_ani_calibrate, (unsigned long)sc);
sc->config.txpowlimit = ATH_TXPOWER_MAX;
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
sc->sc_flags |= SC_OP_TXAGGR;
sc->sc_flags |= SC_OP_RXAGGR;
}
common->tx_chainmask = sc->sc_ah->caps.tx_chainmask;
common->rx_chainmask = sc->sc_ah->caps.rx_chainmask;
ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_DIVERSITY, 1, true, NULL);
sc->rx.defant = ath9k_hw_getdefantenna(sc->sc_ah);
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
sc->beacon.slottime = ATH9K_SLOT_TIME_9;
for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) {
sc->beacon.bslot[i] = NULL;
sc->beacon.bslot_aphy[i] = NULL;
}
}
static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
const struct ath_bus_ops *bus_ops)
{
struct ath_hw *ah = NULL;
struct ath_common *common;
int ret = 0, i;
int csz = 0;
sc->sc_flags |= SC_OP_INVALID;
ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
if (!ah)
return -ENOMEM;
ah->hw_version.devid = devid;
ah->hw_version.subsysid = subsysid;
sc->sc_ah = ah;
common = ath9k_hw_common(ah);
common->ops = &ath9k_common_ops;
common->bus_ops = bus_ops;
common->ah = ah;
common->hw = sc->hw;
common->priv = sc;
common->debug_mask = ath9k_debug;
spin_lock_init(&sc->wiphy_lock);
spin_lock_init(&sc->sc_resetlock);
spin_lock_init(&sc->sc_serial_rw);
spin_lock_init(&sc->sc_pm_lock);
mutex_init(&sc->mutex);
tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,
(unsigned long)sc);
/*
* Cache line size is used to size and align various
* structures used to communicate with the hardware.
*/
ath_read_cachesize(common, &csz);
common->cachelsz = csz << 2; /* convert to bytes */
ret = ath9k_hw_init(ah);
if (ret) {
ath_print(common, ATH_DBG_FATAL,
"Unable to initialize hardware; "
"initialization status: %d\n", ret);
goto err_hw;
}
ret = ath9k_init_debug(ah);
if (ret) {
ath_print(common, ATH_DBG_FATAL,
"Unable to create debugfs files\n");
goto err_debug;
}
ret = ath9k_init_queues(sc);
if (ret)
goto err_queues;
ret = ath9k_init_btcoex(sc);
if (ret)
goto err_btcoex;
ath9k_init_crypto(sc);
ath9k_init_channels_rates(sc);
ath9k_init_misc(sc);
return 0;
bad2:
/* cleanup tx queues */
err_btcoex:
for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
if (ATH_TXQ_SETUP(sc, i))
ath_tx_cleanupq(sc, &sc->tx.txq[i]);
err_queues:
ath9k_exit_debug(ah);
err_debug:
ath9k_hw_deinit(ah);
err_hw:
tasklet_kill(&sc->intr_tq);
tasklet_kill(&sc->bcon_tasklet);
bad_free_hw:
ath9k_uninit_hw(sc);
return r;
kfree(ah);
sc->sc_ah = NULL;
return ret;
}
void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
IEEE80211_HW_SIGNAL_DBM |
@ -621,85 +655,85 @@ void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
&sc->sbands[IEEE80211_BAND_5GHZ];
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes))
setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
}
SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
}
/* Device driver core initialization */
int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
const struct ath_bus_ops *bus_ops)
{
struct ieee80211_hw *hw = sc->hw;
struct ath_common *common;
struct ath_hw *ah;
int error = 0, i;
int error = 0;
struct ath_regulatory *reg;
dev_dbg(sc->dev, "Attach ATH hw\n");
error = ath_init_softc(devid, sc, subsysid, bus_ops);
/* Bring up device */
error = ath9k_init_softc(devid, sc, subsysid, bus_ops);
if (error != 0)
return error;
goto error_init;
ah = sc->sc_ah;
common = ath9k_hw_common(ah);
ath9k_set_hw_capab(sc, hw);
/* get mac address from hardware and set in mac80211 */
SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
ath_set_hw_capab(sc, hw);
/* Initialize regulatory */
error = ath_regd_init(&common->regulatory, sc->hw->wiphy,
ath9k_reg_notifier);
if (error)
return error;
goto error_regd;
reg = &common->regulatory;
if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
if (test_bit(ATH9K_MODE_11G, ah->caps.wireless_modes))
setup_ht_cap(sc,
&sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
if (test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes))
setup_ht_cap(sc,
&sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
}
/* initialize tx/rx engine */
/* Setup TX DMA */
error = ath_tx_init(sc, ATH_TXBUF);
if (error != 0)
goto error_attach;
goto error_tx;
/* Setup RX DMA */
error = ath_rx_init(sc, ATH_RXBUF);
if (error != 0)
goto error_attach;
goto error_rx;
/* Register with mac80211 */
error = ieee80211_register_hw(hw);
if (error)
goto error_register;
/* Handle world regulatory */
if (!ath_is_world_regd(reg)) {
error = regulatory_hint(hw->wiphy, reg->alpha2);
if (error)
goto error_world;
}
INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);
sc->wiphy_scheduler_int = msecs_to_jiffies(500);
error = ieee80211_register_hw(hw);
if (!ath_is_world_regd(reg)) {
error = regulatory_hint(hw->wiphy, reg->alpha2);
if (error)
goto error_attach;
}
/* Initialize LED control */
ath_init_leds(sc);
ath_start_rfkill_poll(sc);
return 0;
error_attach:
/* cleanup tx queues */
for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
if (ATH_TXQ_SETUP(sc, i))
ath_tx_cleanupq(sc, &sc->tx.txq[i]);
ath9k_uninit_hw(sc);
error_world:
ieee80211_unregister_hw(hw);
error_register:
ath_rx_cleanup(sc);
error_rx:
ath_tx_cleanup(sc);
error_tx:
/* Nothing */
error_regd:
ath9k_deinit_softc(sc);
error_init:
return error;
}
@ -707,29 +741,34 @@ error_attach:
/* De-Initialization */
/*****************************/
static void ath9k_uninit_hw(struct ath_softc *sc)
static void ath9k_deinit_softc(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
int i = 0;
BUG_ON(!ah);
if ((sc->btcoex.no_stomp_timer) &&
sc->sc_ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer);
ath9k_exit_debug(ah);
ath9k_hw_detach(ah);
sc->sc_ah = NULL;
for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
if (ATH_TXQ_SETUP(sc, i))
ath_tx_cleanupq(sc, &sc->tx.txq[i]);
ath9k_exit_debug(sc->sc_ah);
ath9k_hw_deinit(sc->sc_ah);
tasklet_kill(&sc->intr_tq);
tasklet_kill(&sc->bcon_tasklet);
}
static void ath_clean_core(struct ath_softc *sc)
void ath9k_deinit_device(struct ath_softc *sc)
{
struct ieee80211_hw *hw = sc->hw;
struct ath_hw *ah = sc->sc_ah;
int i = 0;
ath9k_ps_wakeup(sc);
dev_dbg(sc->dev, "Detach ATH hw\n");
ath_deinit_leds(sc);
wiphy_rfkill_stop_polling(sc->hw->wiphy);
ath_deinit_leds(sc);
for (i = 0; i < sc->num_sec_wiphy; i++) {
struct ath_wiphy *aphy = sc->sec_wiphy[i];
@ -739,24 +778,12 @@ static void ath_clean_core(struct ath_softc *sc)
ieee80211_unregister_hw(aphy->hw);
ieee80211_free_hw(aphy->hw);
}
kfree(sc->sec_wiphy);
ieee80211_unregister_hw(hw);
ath_rx_cleanup(sc);
ath_tx_cleanup(sc);
tasklet_kill(&sc->intr_tq);
tasklet_kill(&sc->bcon_tasklet);
if (!(sc->sc_flags & SC_OP_INVALID))
ath9k_setpower(sc, ATH9K_PM_AWAKE);
/* cleanup tx queues */
for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
if (ATH_TXQ_SETUP(sc, i))
ath_tx_cleanupq(sc, &sc->tx.txq[i]);
if ((sc->btcoex.no_stomp_timer) &&
ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
ath_gen_timer_free(ah, sc->btcoex.no_stomp_timer);
ath9k_deinit_softc(sc);
}
void ath_descdma_cleanup(struct ath_softc *sc,
@ -771,26 +798,6 @@ void ath_descdma_cleanup(struct ath_softc *sc,
memset(dd, 0, sizeof(*dd));
}
void ath_detach(struct ath_softc *sc)
{
ath_clean_core(sc);
ath9k_uninit_hw(sc);
}
void ath_cleanup(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
ath_clean_core(sc);
free_irq(sc->irq, sc);
ath_bus_cleanup(common);
kfree(sc->sec_wiphy);
ieee80211_free_hw(sc->hw);
ath9k_uninit_hw(sc);
}
/************************/
/* Module Hooks */
/************************/

57
drivers/net/wireless/ath/ath9k/pci.c
View file

@ -113,25 +113,22 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
u16 subsysid;
u32 val;
int ret = 0;
struct ath_hw *ah;
char hw_name[64];
if (pci_enable_device(pdev))
return -EIO;
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret) {
printk(KERN_ERR "ath9k: 32-bit DMA not available\n");
goto bad;
goto err_dma;
}
ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret) {
printk(KERN_ERR "ath9k: 32-bit DMA consistent "
"DMA enable failed\n");
goto bad;
goto err_dma;
}
/*
@ -171,22 +168,22 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (ret) {
dev_err(&pdev->dev, "PCI memory region reserve error\n");
ret = -ENODEV;
goto bad;
goto err_region;
}
mem = pci_iomap(pdev, 0, 0);
if (!mem) {
printk(KERN_ERR "PCI memory map error\n") ;
ret = -EIO;
goto bad1;
goto err_iomap;
}
hw = ieee80211_alloc_hw(sizeof(struct ath_wiphy) +
sizeof(struct ath_softc), &ath9k_ops);
if (!hw) {
dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
dev_err(&pdev->dev, "No memory for ieee80211_hw\n");
ret = -ENOMEM;
goto bad2;
goto err_alloc_hw;
}
SET_IEEE80211_DEV(hw, &pdev->dev);
@ -201,25 +198,22 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
sc->dev = &pdev->dev;
sc->mem = mem;
pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &subsysid);
ret = ath_init_device(id->device, sc, subsysid, &ath_pci_bus_ops);
if (ret) {
dev_err(&pdev->dev, "failed to initialize device\n");
goto bad3;
}
/* setup interrupt service routine */
ret = request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath9k", sc);
if (ret) {
dev_err(&pdev->dev, "request_irq failed\n");
goto bad4;
goto err_irq;
}
sc->irq = pdev->irq;
ah = sc->sc_ah;
ath9k_hw_name(ah, hw_name, sizeof(hw_name));
pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &subsysid);
ret = ath9k_init_device(id->device, sc, subsysid, &ath_pci_bus_ops);
if (ret) {
dev_err(&pdev->dev, "Failed to initialize device\n");
goto err_init;
}
ath9k_hw_name(sc->sc_ah, hw_name, sizeof(hw_name));
printk(KERN_INFO
"%s: %s mem=0x%lx, irq=%d\n",
wiphy_name(hw->wiphy),
@ -227,15 +221,18 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
(unsigned long)mem, pdev->irq);
return 0;
bad4:
ath_detach(sc);
bad3:
err_init:
free_irq(sc->irq, sc);
err_irq:
ieee80211_free_hw(hw);
bad2:
err_alloc_hw:
pci_iounmap(pdev, mem);
bad1:
err_iomap:
pci_release_region(pdev, 0);
bad:
err_region:
/* Nothing */
err_dma:
pci_disable_device(pdev);
return ret;
}
@ -245,8 +242,12 @@ static void ath_pci_remove(struct pci_dev *pdev)
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
struct ath_wiphy *aphy = hw->priv;
struct ath_softc *sc = aphy->sc;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
ath_cleanup(sc);
ath9k_deinit_device(sc);
free_irq(sc->irq, sc);
ieee80211_free_hw(sc->hw);
ath_bus_cleanup(common);
}
#ifdef CONFIG_PM

2
drivers/net/wireless/ath/ath9k/virtual.c
View file

@ -152,7 +152,7 @@ int ath9k_wiphy_add(struct ath_softc *sc)
SET_IEEE80211_PERM_ADDR(hw, addr);
ath_set_hw_capab(sc, hw);
ath9k_set_hw_capab(sc, hw);
error = ieee80211_register_hw(hw);