diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k')
21 files changed, 1948 insertions, 1625 deletions
diff --git a/drivers/net/wireless/ath/ath9k/Makefile b/drivers/net/wireless/ath/ath9k/Makefile index 4985b2b1b0a9..6b50d5eb9ec3 100644 --- a/drivers/net/wireless/ath/ath9k/Makefile +++ b/drivers/net/wireless/ath/ath9k/Makefile @@ -1,4 +1,6 @@ ath9k-y += beacon.o \ + gpio.o \ + init.o \ main.o \ recv.o \ xmit.o \ diff --git a/drivers/net/wireless/ath/ath9k/ahb.c b/drivers/net/wireless/ath/ath9k/ahb.c index 329e6bc137ab..ca4994f13151 100644 --- a/drivers/net/wireless/ath/ath9k/ahb.c +++ b/drivers/net/wireless/ath/ath9k/ahb.c @@ -27,12 +27,6 @@ static void ath_ahb_read_cachesize(struct ath_common *common, int *csz) *csz = L1_CACHE_BYTES >> 2; } -static void ath_ahb_cleanup(struct ath_common *common) -{ - struct ath_softc *sc = (struct ath_softc *)common->priv; - iounmap(sc->mem); -} - static bool ath_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data) { struct ath_softc *sc = (struct ath_softc *)common->priv; @@ -54,8 +48,6 @@ static bool ath_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data) static struct ath_bus_ops ath_ahb_bus_ops = { .read_cachesize = ath_ahb_read_cachesize, - .cleanup = ath_ahb_cleanup, - .eeprom_read = ath_ahb_eeprom_read, }; @@ -121,16 +113,19 @@ 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); + /* Will be cleared in ath9k_start() */ + sc->sc_flags |= SC_OP_INVALID; + + ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc); if (ret) { - dev_err(&pdev->dev, "failed to initialize device\n"); + dev_err(&pdev->dev, "request_irq failed\n"); goto err_free_hw; } - ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc); + ret = ath9k_init_device(AR5416_AR9100_DEVID, sc, 0x0, &ath_ahb_bus_ops); if (ret) { - dev_err(&pdev->dev, "request_irq failed\n"); - goto err_detach; + dev_err(&pdev->dev, "failed to initialize device\n"); + goto err_irq; } ah = sc->sc_ah; @@ -143,8 +138,8 @@ 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 +156,12 @@ static int ath_ahb_remove(struct platform_device *pdev) if (hw) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + void __iomem *mem = sc->mem; - ath_cleanup(sc); + ath9k_deinit_device(sc); + free_irq(sc->irq, sc); + ieee80211_free_hw(sc->hw); + iounmap(mem); platform_set_drvdata(pdev, NULL); } diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 1597a42731ed..83c7ea4c007f 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -267,6 +267,7 @@ void ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid, u16 *ssn); void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); +void ath9k_enable_ps(struct ath_softc *sc); /********/ /* VIFs */ @@ -341,6 +342,12 @@ int ath_beaconq_config(struct ath_softc *sc); #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */ #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */ +void ath_ani_calibrate(unsigned long data); + +/**********/ +/* BTCOEX */ +/**********/ + /* Defines the BT AR_BT_COEX_WGHT used */ enum ath_stomp_type { ATH_BTCOEX_NO_STOMP, @@ -358,9 +365,14 @@ struct ath_btcoex { int bt_stomp_type; /* Types of BT stomping */ u32 btcoex_no_stomp; /* in usec */ u32 btcoex_period; /* in usec */ + u32 btscan_no_stomp; /* in usec */ struct ath_gen_timer *no_stomp_timer; /* Timer for no BT stomping */ }; +int ath_init_btcoex_timer(struct ath_softc *sc); +void ath9k_btcoex_timer_resume(struct ath_softc *sc); +void ath9k_btcoex_timer_pause(struct ath_softc *sc); + /********************/ /* LED Control */ /********************/ @@ -385,6 +397,9 @@ struct ath_led { bool registered; }; +void ath_init_leds(struct ath_softc *sc); +void ath_deinit_leds(struct ath_softc *sc); + /********************/ /* Main driver core */ /********************/ @@ -403,26 +418,29 @@ struct ath_led { #define ATH_TXPOWER_MAX 100 /* .5 dBm units */ #define ATH_RATE_DUMMY_MARKER 0 -#define SC_OP_INVALID BIT(0) -#define SC_OP_BEACONS BIT(1) -#define SC_OP_RXAGGR BIT(2) -#define SC_OP_TXAGGR BIT(3) -#define SC_OP_FULL_RESET BIT(4) -#define SC_OP_PREAMBLE_SHORT BIT(5) -#define SC_OP_PROTECT_ENABLE BIT(6) -#define SC_OP_RXFLUSH BIT(7) -#define SC_OP_LED_ASSOCIATED BIT(8) -#define SC_OP_WAIT_FOR_BEACON BIT(12) -#define SC_OP_LED_ON BIT(13) -#define SC_OP_SCANNING BIT(14) -#define SC_OP_TSF_RESET BIT(15) -#define SC_OP_WAIT_FOR_CAB BIT(16) -#define SC_OP_WAIT_FOR_PSPOLL_DATA BIT(17) -#define SC_OP_WAIT_FOR_TX_ACK BIT(18) -#define SC_OP_BEACON_SYNC BIT(19) -#define SC_OP_BT_PRIORITY_DETECTED BIT(21) -#define SC_OP_NULLFUNC_COMPLETED BIT(22) -#define SC_OP_PS_ENABLED BIT(23) +#define SC_OP_INVALID BIT(0) +#define SC_OP_BEACONS BIT(1) +#define SC_OP_RXAGGR BIT(2) +#define SC_OP_TXAGGR BIT(3) +#define SC_OP_FULL_RESET BIT(4) +#define SC_OP_PREAMBLE_SHORT BIT(5) +#define SC_OP_PROTECT_ENABLE BIT(6) +#define SC_OP_RXFLUSH BIT(7) +#define SC_OP_LED_ASSOCIATED BIT(8) +#define SC_OP_LED_ON BIT(9) +#define SC_OP_SCANNING BIT(10) +#define SC_OP_TSF_RESET BIT(11) +#define SC_OP_BT_PRIORITY_DETECTED BIT(12) +#define SC_OP_BT_SCAN BIT(13) + +/* Powersave flags */ +#define PS_WAIT_FOR_BEACON BIT(0) +#define PS_WAIT_FOR_CAB BIT(1) +#define PS_WAIT_FOR_PSPOLL_DATA BIT(2) +#define PS_WAIT_FOR_TX_ACK BIT(3) +#define PS_BEACON_SYNC BIT(4) +#define PS_NULLFUNC_COMPLETED BIT(5) +#define PS_ENABLED BIT(6) struct ath_wiphy; struct ath_rate_table; @@ -453,16 +471,17 @@ struct ath_softc { int irq; spinlock_t sc_resetlock; spinlock_t sc_serial_rw; - spinlock_t ani_lock; spinlock_t sc_pm_lock; struct mutex mutex; u32 intrstatus; u32 sc_flags; /* SC_OP_* */ + u16 ps_flags; /* PS_* */ u16 curtxpow; u8 nbcnvifs; u16 nvifs; bool ps_enabled; + bool ps_idle; unsigned long ps_usecount; enum ath9k_int imask; @@ -509,6 +528,7 @@ struct ath_wiphy { int chan_is_ht; }; +void ath9k_tasklet(unsigned long data); int ath_reset(struct ath_softc *sc, bool retry_tx); int ath_get_hal_qnum(u16 queue, struct ath_softc *sc); int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc); @@ -519,21 +539,16 @@ static inline void ath_read_cachesize(struct ath_common *common, int *csz) common->bus_ops->read_cachesize(common, csz); } -static inline void ath_bus_cleanup(struct ath_common *common) -{ - common->bus_ops->cleanup(common); -} - 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); @@ -542,6 +557,7 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw); void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw); +bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode); #ifdef CONFIG_PCI int ath_pci_init(void); @@ -583,4 +599,8 @@ void ath_mac80211_stop_queue(struct ath_softc *sc, u16 skb_queue); void ath_mac80211_start_queue(struct ath_softc *sc, u16 skb_queue); int ath_tx_get_qnum(struct ath_softc *sc, int qtype, int haltype); + +void ath_start_rfkill_poll(struct ath_softc *sc); +extern void ath9k_rfkill_poll_state(struct ieee80211_hw *hw); + #endif /* ATH9K_H */ diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 1660ef17aaf5..b4a31a43a62c 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -62,7 +62,7 @@ int ath_beaconq_config(struct ath_softc *sc) * Beacons are always sent out at the lowest rate, and are not retried. */ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp, - struct ath_buf *bf) + struct ath_buf *bf, int rateidx) { struct sk_buff *skb = bf->bf_mpdu; struct ath_hw *ah = sc->sc_ah; @@ -96,9 +96,9 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp, ds->ds_data = bf->bf_buf_addr; sband = &sc->sbands[common->hw->conf.channel->band]; - rate = sband->bitrates[0].hw_value; + rate = sband->bitrates[rateidx].hw_value; if (sc->sc_flags & SC_OP_PREAMBLE_SHORT) - rate |= sband->bitrates[0].hw_value_short; + rate |= sband->bitrates[rateidx].hw_value_short; ath9k_hw_set11n_txdesc(ah, ds, skb->len + FCS_LEN, ATH9K_PKT_TYPE_BEACON, @@ -206,7 +206,7 @@ static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw, } } - ath_beacon_setup(sc, avp, bf); + ath_beacon_setup(sc, avp, bf, info->control.rates[0].idx); while (skb) { ath_tx_cabq(hw, skb); @@ -237,7 +237,7 @@ static void ath_beacon_start_adhoc(struct ath_softc *sc, bf = avp->av_bcbuf; skb = bf->bf_mpdu; - ath_beacon_setup(sc, avp, bf); + ath_beacon_setup(sc, avp, bf, 0); /* NB: caller is known to have already stopped tx dma */ ath9k_hw_puttxbuf(ah, sc->beacon.beaconq, bf->bf_daddr); @@ -480,7 +480,8 @@ void ath_beacon_tasklet(unsigned long data) sc->beacon.updateslot = COMMIT; /* commit next beacon */ sc->beacon.slotupdate = slot; } else if (sc->beacon.updateslot == COMMIT && sc->beacon.slotupdate == slot) { - ath9k_hw_setslottime(sc->sc_ah, sc->beacon.slottime); + ah->slottime = sc->beacon.slottime; + ath9k_hw_init_global_settings(ah); sc->beacon.updateslot = OK; } if (bfaddr != 0) { @@ -525,16 +526,13 @@ static void ath_beacon_config_ap(struct ath_softc *sc, { u32 nexttbtt, intval; - /* Configure the timers only when the TSF has to be reset */ - - if (!(sc->sc_flags & SC_OP_TSF_RESET)) - return; - /* NB: the beacon interval is kept internally in TU's */ intval = conf->beacon_interval & ATH9K_BEACON_PERIOD; intval /= ATH_BCBUF; /* for staggered beacons */ nexttbtt = intval; - intval |= ATH9K_BEACON_RESET_TSF; + + if (sc->sc_flags & SC_OP_TSF_RESET) + intval |= ATH9K_BEACON_RESET_TSF; /* * In AP mode we enable the beacon timers and SWBA interrupts to @@ -576,6 +574,13 @@ static void ath_beacon_config_sta(struct ath_softc *sc, u64 tsf; int num_beacons, offset, dtim_dec_count, cfp_dec_count; + /* No need to configure beacon if we are not associated */ + if (!common->curaid) { + ath_print(common, ATH_DBG_BEACON, + "STA is not yet associated..skipping beacon config\n"); + return; + } + memset(&bs, 0, sizeof(bs)); intval = conf->beacon_interval & ATH9K_BEACON_PERIOD; @@ -738,7 +743,6 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif) enum nl80211_iftype iftype; /* Setup the beacon configuration parameters */ - if (vif) { struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h index 1ba31a73317c..1ee5a15ccbb1 100644 --- a/drivers/net/wireless/ath/ath9k/btcoex.h +++ b/drivers/net/wireless/ath/ath9k/btcoex.h @@ -25,10 +25,12 @@ #define ATH_BTCOEX_DEF_BT_PERIOD 45 #define ATH_BTCOEX_DEF_DUTY_CYCLE 55 +#define ATH_BTCOEX_BTSCAN_DUTY_CYCLE 90 #define ATH_BTCOEX_BMISS_THRESH 50 #define ATH_BT_PRIORITY_TIME_THRESHOLD 1000 /* ms */ #define ATH_BT_CNT_THRESHOLD 3 +#define ATH_BT_CNT_SCAN_THRESHOLD 15 enum ath_btcoex_scheme { ATH_BTCOEX_CFG_NONE, diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index b66f72dbf7b9..42d2a506845a 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -75,17 +75,24 @@ static const struct file_operations fops_debug = { #endif +#define DMA_BUF_LEN 1024 + static ssize_t read_file_dma(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; struct ath_hw *ah = sc->sc_ah; - char buf[1024]; + char *buf; + int retval; unsigned int len = 0; u32 val[ATH9K_NUM_DMA_DEBUG_REGS]; int i, qcuOffset = 0, dcuOffset = 0; u32 *qcuBase = &val[0], *dcuBase = &val[4]; + buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL); + if (!buf) + return 0; + ath9k_ps_wakeup(sc); REG_WRITE_D(ah, AR_MACMISC, @@ -93,20 +100,20 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf, (AR_MACMISC_MISC_OBS_BUS_1 << AR_MACMISC_MISC_OBS_BUS_MSB_S))); - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "Raw DMA Debug values:\n"); for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) { if (i % 4 == 0) - len += snprintf(buf + len, sizeof(buf) - len, "\n"); + len += snprintf(buf + len, DMA_BUF_LEN - len, "\n"); val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32))); - len += snprintf(buf + len, sizeof(buf) - len, "%d: %08x ", + len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ", i, val[i]); } - len += snprintf(buf + len, sizeof(buf) - len, "\n\n"); - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n"); + len += snprintf(buf + len, DMA_BUF_LEN - len, "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n"); for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) { @@ -120,7 +127,7 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf, dcuBase++; } - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "%2d %2x %1x %2x %2x\n", i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset, (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3), @@ -128,35 +135,37 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf, (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset); } - len += snprintf(buf + len, sizeof(buf) - len, "\n"); + len += snprintf(buf + len, DMA_BUF_LEN - len, "\n"); - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "qcu_stitch state: %2x qcu_fetch state: %2x\n", (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22); - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "qcu_complete state: %2x dcu_complete state: %2x\n", (val[3] & 0x1c000000) >> 26, (val[6] & 0x3)); - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "dcu_arb state: %2x dcu_fp state: %2x\n", (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27); - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n", (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10); - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "txfifo_valid_0: %1d txfifo_valid_1: %1d\n", (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12); - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n", (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17); - len += snprintf(buf + len, sizeof(buf) - len, "pcu observe: 0x%x \n", + len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x \n", REG_READ_D(ah, AR_OBS_BUS_1)); - len += snprintf(buf + len, sizeof(buf) - len, + len += snprintf(buf + len, DMA_BUF_LEN - len, "AR_CR: 0x%x \n", REG_READ_D(ah, AR_CR)); ath9k_ps_restore(sc); - return simple_read_from_buffer(user_buf, count, ppos, buf, len); + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + return retval; } static const struct file_operations fops_dma = { @@ -289,23 +298,49 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf, if (sc->cur_rate_table == NULL) return 0; - max = 80 + sc->cur_rate_table->rate_cnt * 64; + max = 80 + sc->cur_rate_table->rate_cnt * 1024; buf = kmalloc(max + 1, GFP_KERNEL); if (buf == NULL) return 0; buf[max] = 0; - len += sprintf(buf, "%5s %15s %8s %9s %3s\n\n", "Rate", "Success", - "Retries", "XRetries", "PER"); + len += sprintf(buf, "%6s %6s %6s " + "%10s %10s %10s %10s\n", + "HT", "MCS", "Rate", + "Success", "Retries", "XRetries", "PER"); for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) { u32 ratekbps = sc->cur_rate_table->info[i].ratekbps; struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i]; + char mcs[5]; + char htmode[5]; + int used_mcs = 0, used_htmode = 0; + + if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) { + used_mcs = snprintf(mcs, 5, "%d", + sc->cur_rate_table->info[i].ratecode); + + if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy)) + used_htmode = snprintf(htmode, 5, "HT40"); + else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy)) + used_htmode = snprintf(htmode, 5, "HT20"); + else + used_htmode = snprintf(htmode, 5, "????"); + } + + mcs[used_mcs] = '\0'; + htmode[used_htmode] = '\0'; len += snprintf(buf + len, max - len, - "%3u.%d: %8u %8u %8u %8u\n", ratekbps / 1000, - (ratekbps % 1000) / 100, stats->success, - stats->retries, stats->xretries, + "%6s %6s %3u.%d: " + "%10u %10u %10u %10u\n", + htmode, + mcs, + ratekbps / 1000, + (ratekbps % 1000) / 100, + stats->success, + stats->retries, + stats->xretries, stats->per); } @@ -554,6 +589,116 @@ static const struct file_operations fops_xmit = { .owner = THIS_MODULE }; +static ssize_t read_file_recv(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ +#define PHY_ERR(s, p) \ + len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \ + sc->debug.stats.rxstats.phy_err_stats[p]); + + struct ath_softc *sc = file->private_data; + char *buf; + unsigned int len = 0, size = 1152; + ssize_t retval = 0; + + buf = kzalloc(size, GFP_KERNEL); + if (buf == NULL) + return 0; + + len += snprintf(buf + len, size - len, + "%18s : %10u\n", "CRC ERR", + sc->debug.stats.rxstats.crc_err); + len += snprintf(buf + len, size - len, + "%18s : %10u\n", "DECRYPT CRC ERR", + sc->debug.stats.rxstats.decrypt_crc_err); + len += snprintf(buf + len, size - len, + "%18s : %10u\n", "PHY ERR", + sc->debug.stats.rxstats.phy_err); + len += snprintf(buf + len, size - len, + "%18s : %10u\n", "MIC ERR", + sc->debug.stats.rxstats.mic_err); + len += snprintf(buf + len, size - len, + "%18s : %10u\n", "PRE-DELIM CRC ERR", + sc->debug.stats.rxstats.pre_delim_crc_err); + len += snprintf(buf + len, size - len, + "%18s : %10u\n", "POST-DELIM CRC ERR", + sc->debug.stats.rxstats.post_delim_crc_err); + len += snprintf(buf + len, size - len, + "%18s : %10u\n", "DECRYPT BUSY ERR", + sc->debug.stats.rxstats.decrypt_busy_err); + + PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN); + PHY_ERR("TIMING", ATH9K_PHYERR_TIMING); + PHY_ERR("PARITY", ATH9K_PHYERR_PARITY); + PHY_ERR("RATE", ATH9K_PHYERR_RATE); + PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH); + PHY_ERR("RADAR", ATH9K_PHYERR_RADAR); + PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE); + PHY_ERR("TOR", ATH9K_PHYERR_TOR); + PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING); + PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY); + PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL); + PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL); + PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP); + PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE); + PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART); + PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT); + PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING); + PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC); + PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL); + PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE); + PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART); + PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL); + PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP); + PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR); + PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL); + PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL); + + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + + return retval; + +#undef PHY_ERR +} + +void ath_debug_stat_rx(struct ath_softc *sc, struct ath_buf *bf) +{ +#define RX_STAT_INC(c) sc->debug.stats.rxstats.c++ +#define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++ + + struct ath_desc *ds = bf->bf_desc; + u32 phyerr; + + if (ds->ds_rxstat.rs_status & ATH9K_RXERR_CRC) + RX_STAT_INC(crc_err); + if (ds->ds_rxstat.rs_status & ATH9K_RXERR_DECRYPT) + RX_STAT_INC(decrypt_crc_err); + if (ds->ds_rxstat.rs_status & ATH9K_RXERR_MIC) + RX_STAT_INC(mic_err); + if (ds->ds_rxstat.rs_status & ATH9K_RX_DELIM_CRC_PRE) + RX_STAT_INC(pre_delim_crc_err); + if (ds->ds_rxstat.rs_status & ATH9K_RX_DELIM_CRC_POST) + RX_STAT_INC(post_delim_crc_err); + if (ds->ds_rxstat.rs_status & ATH9K_RX_DECRYPT_BUSY) + RX_STAT_INC(decrypt_busy_err); + + if (ds->ds_rxstat.rs_status & ATH9K_RXERR_PHY) { + RX_STAT_INC(phy_err); + phyerr = ds->ds_rxstat.rs_phyerr & 0x24; + RX_PHY_ERR_INC(phyerr); + } + +#undef RX_STAT_INC +#undef RX_PHY_ERR_INC +} + +static const struct file_operations fops_recv = { + .read = read_file_recv, + .open = ath9k_debugfs_open, + .owner = THIS_MODULE +}; + int ath9k_init_debug(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); @@ -606,6 +751,13 @@ int ath9k_init_debug(struct ath_hw *ah) if (!sc->debug.debugfs_xmit) goto err; + sc->debug.debugfs_recv = debugfs_create_file("recv", + S_IRUSR, + sc->debug.debugfs_phy, + sc, &fops_recv); + if (!sc->debug.debugfs_recv) + goto err; + return 0; err: ath9k_exit_debug(ah); @@ -617,6 +769,7 @@ void ath9k_exit_debug(struct ath_hw *ah) struct ath_common *common = ath9k_hw_common(ah); struct ath_softc *sc = (struct ath_softc *) common->priv; + debugfs_remove(sc->debug.debugfs_recv); debugfs_remove(sc->debug.debugfs_xmit); debugfs_remove(sc->debug.debugfs_wiphy); debugfs_remove(sc->debug.debugfs_rcstat); diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h index 536663e3ee11..86780e68b31e 100644 --- a/drivers/net/wireless/ath/ath9k/debug.h +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -116,10 +116,35 @@ struct ath_tx_stats { u32 delim_underrun; }; +/** + * struct ath_rx_stats - RX Statistics + * @crc_err: No. of frames with incorrect CRC value + * @decrypt_crc_err: No. of frames whose CRC check failed after + decryption process completed + * @phy_err: No. of frames whose reception failed because the PHY + encountered an error + * @mic_err: No. of frames with incorrect TKIP MIC verification failure + * @pre_delim_crc_err: Pre-Frame delimiter CRC error detections + * @post_delim_crc_err: Post-Frame delimiter CRC error detections + * @decrypt_busy_err: Decryption interruptions counter + * @phy_err_stats: Individual PHY error statistics + */ +struct ath_rx_stats { + u32 crc_err; + u32 decrypt_crc_err; + u32 phy_err; + u32 mic_err; + u32 pre_delim_crc_err; + u32 post_delim_crc_err; + u32 decrypt_busy_err; + u32 phy_err_stats[ATH9K_PHYERR_MAX]; +}; + struct ath_stats { struct ath_interrupt_stats istats; struct ath_rc_stats rcstats[RATE_TABLE_SIZE]; struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES]; + struct ath_rx_stats rxstats; }; struct ath9k_debug { @@ -130,6 +155,7 @@ struct ath9k_debug { struct dentry *debugfs_rcstat; struct dentry *debugfs_wiphy; struct dentry *debugfs_xmit; + struct dentry *debugfs_recv; struct ath_stats stats; }; @@ -142,6 +168,7 @@ void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status); void ath_debug_stat_rc(struct ath_softc *sc, int final_rate); void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq, struct ath_buf *bf); +void ath_debug_stat_rx(struct ath_softc *sc, struct ath_buf *bf); void ath_debug_stat_retries(struct ath_softc *sc, int rix, int xretries, int retries, u8 per); @@ -181,6 +208,11 @@ static inline void ath_debug_stat_tx(struct ath_softc *sc, { } +static inline void ath_debug_stat_rx(struct ath_softc *sc, + struct ath_buf *bf) +{ +} + static inline void ath_debug_stat_retries(struct ath_softc *sc, int rix, int xretries, int retries, u8 per) { diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c new file mode 100644 index 000000000000..deab8beb0680 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -0,0 +1,442 @@ +/* + * Copyright (c) 2008-2009 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 "ath9k.h" + +/********************************/ +/* LED functions */ +/********************************/ + +static void ath_led_blink_work(struct work_struct *work) +{ + struct ath_softc *sc = container_of(work, struct ath_softc, + ath_led_blink_work.work); + + if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) + return; + + if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) || + (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) + ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); + else + ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, + (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); + + ieee80211_queue_delayed_work(sc->hw, + &sc->ath_led_blink_work, + (sc->sc_flags & SC_OP_LED_ON) ? + msecs_to_jiffies(sc->led_off_duration) : + msecs_to_jiffies(sc->led_on_duration)); + + sc->led_on_duration = sc->led_on_cnt ? + max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) : + ATH_LED_ON_DURATION_IDLE; + sc->led_off_duration = sc->led_off_cnt ? + max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) : + ATH_LED_OFF_DURATION_IDLE; + sc->led_on_cnt = sc->led_off_cnt = 0; + if (sc->sc_flags & SC_OP_LED_ON) + sc->sc_flags &= ~SC_OP_LED_ON; + else + sc->sc_flags |= SC_OP_LED_ON; +} + +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) { + ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, + (led->led_type == ATH_LED_RADIO)); + sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; + if (led->led_type == ATH_LED_RADIO) + sc->sc_flags &= ~SC_OP_LED_ON; + } else { + sc->led_off_cnt++; + } + break; + case LED_FULL: + if (led->led_type == ATH_LED_ASSOC) { + sc->sc_flags |= SC_OP_LED_ASSOCIATED; + ieee80211_queue_delayed_work(sc->hw, + &sc->ath_led_blink_work, 0); + } else if (led->led_type == ATH_LED_RADIO) { + ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); + sc->sc_flags |= SC_OP_LED_ON; + } else { + sc->led_on_cnt++; + } + 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) + ath_print(ath9k_hw_common(sc->sc_ah), 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; + } +} + +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, sc->sc_ah->led_pin, 1); +} + +void ath_init_leds(struct ath_softc *sc) +{ + char *trigger; + int ret; + + if (AR_SREV_9287(sc->sc_ah)) + sc->sc_ah->led_pin = ATH_LED_PIN_9287; + else + sc->sc_ah->led_pin = ATH_LED_PIN_DEF; + + /* Configure gpio 1 for output */ + ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin, + AR_GPIO_OUTPUT_MUX_AS_OUTPUT); + /* LED off, active low */ + ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); + + INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); + + 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: + cancel_delayed_work_sync(&sc->ath_led_blink_work); + ath_deinit_leds(sc); +} + +/*******************/ +/* Rfkill */ +/*******************/ + +static bool ath_is_rfkill_set(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == + ah->rfkill_polarity; +} + +void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + bool blocked = !!ath_is_rfkill_set(sc); + + wiphy_rfkill_set_hw_state(hw->wiphy, blocked); +} + +void ath_start_rfkill_poll(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) + wiphy_rfkill_start_polling(sc->hw->wiphy); +} + +/******************/ +/* BTCOEX */ +/******************/ + +/* + * Detects if there is any priority bt traffic + */ +static void ath_detect_bt_priority(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_hw *ah = sc->sc_ah; + + if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio)) + btcoex->bt_priority_cnt++; + + if (time_after(jiffies, btcoex->bt_priority_time + + msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) { + sc->sc_flags &= ~(SC_OP_BT_PRIORITY_DETECTED | SC_OP_BT_SCAN); + /* Detect if colocated bt started scanning */ + if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) { + ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_BTCOEX, + "BT scan detected"); + sc->sc_flags |= (SC_OP_BT_SCAN | + SC_OP_BT_PRIORITY_DETECTED); + } else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { + ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_BTCOEX, + "BT priority traffic detected"); + sc->sc_flags |= SC_OP_BT_PRIORITY_DETECTED; + } + + btcoex->bt_priority_cnt = 0; + btcoex->bt_priority_time = jiffies; + } +} + +/* + * Configures appropriate weight based on stomp type. + */ +static void ath9k_btcoex_bt_stomp(struct ath_softc *sc, + enum ath_stomp_type stomp_type) +{ + struct ath_hw *ah = sc->sc_ah; + + switch (stomp_type) { + case ATH_BTCOEX_STOMP_ALL: + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_ALL_WLAN_WGHT); + break; + case ATH_BTCOEX_STOMP_LOW: + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_LOW_WLAN_WGHT); + break; + case ATH_BTCOEX_STOMP_NONE: + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_NONE_WLAN_WGHT); + break; + default: + ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, + "Invalid Stomptype\n"); + break; + } + + ath9k_hw_btcoex_enable(ah); +} + +static void ath9k_gen_timer_start(struct ath_hw *ah, + struct ath_gen_timer *timer, + u32 timer_next, + u32 timer_period) +{ + struct ath_common *common = ath9k_hw_common(ah); + struct ath_softc *sc = (struct ath_softc *) common->priv; + + ath9k_hw_gen_timer_start(ah, timer, timer_next, timer_period); + + if ((sc->imask & ATH9K_INT_GENTIMER) == 0) { + ath9k_hw_set_interrupts(ah, 0); + sc->imask |= ATH9K_INT_GENTIMER; + ath9k_hw_set_interrupts(ah, sc->imask); + } +} + +static void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) +{ + struct ath_common *common = ath9k_hw_common(ah); + struct ath_softc *sc = (struct ath_softc *) common->priv; + struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; + + ath9k_hw_gen_timer_stop(ah, timer); + + /* if no timer is enabled, turn off interrupt mask */ + if (timer_table->timer_mask.val == 0) { + ath9k_hw_set_interrupts(ah, 0); + sc->imask &= ~ATH9K_INT_GENTIMER; + ath9k_hw_set_interrupts(ah, sc->imask); + } +} + +/* + * This is the master bt coex timer which runs for every + * 45ms, bt traffic will be given priority during 55% of this + * period while wlan gets remaining 45% + */ +static void ath_btcoex_period_timer(unsigned long data) +{ + struct ath_softc *sc = (struct ath_softc *) data; + struct ath_hw *ah = sc->sc_ah; + struct ath_btcoex *btcoex = &sc->btcoex; + u32 timer_period; + bool is_btscan; + + ath_detect_bt_priority(sc); + + is_btscan = sc->sc_flags & SC_OP_BT_SCAN; + + spin_lock_bh(&btcoex->btcoex_lock); + + ath9k_btcoex_bt_stomp(sc, is_btscan ? ATH_BTCOEX_STOMP_ALL : + btcoex->bt_stomp_type); + + spin_unlock_bh(&btcoex->btcoex_lock); + + if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) { + if (btcoex->hw_timer_enabled) + ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); + + timer_period = is_btscan ? btcoex->btscan_no_stomp : + btcoex->btcoex_no_stomp; + ath9k_gen_timer_start(ah, + btcoex->no_stomp_timer, + (ath9k_hw_gettsf32(ah) + + timer_period), timer_period * 10); + btcoex->hw_timer_enabled = true; + } + + mod_timer(&btcoex->period_timer, jiffies + + msecs_to_jiffies(ATH_BTCOEX_DEF_BT_PERIOD)); +} + +/* + * Generic tsf based hw timer which configures weight + * registers to time slice between wlan and bt traffic + */ +static void ath_btcoex_no_stomp_timer(void *arg) +{ + struct ath_softc *sc = (struct ath_softc *)arg; + struct ath_hw *ah = sc->sc_ah; + struct ath_btcoex *btcoex = &sc->btcoex; + bool is_btscan = sc->sc_flags & SC_OP_BT_SCAN; + + ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, + "no stomp timer running \n"); + + spin_lock_bh(&btcoex->btcoex_lock); + + if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW || is_btscan) + ath9k_btcoex_bt_stomp(sc, ATH_BTCOEX_STOMP_NONE); + else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) + ath9k_btcoex_bt_stomp(sc, ATH_BTCOEX_STOMP_LOW); + + spin_unlock_bh(&btcoex->btcoex_lock); +} + +int ath_init_btcoex_timer(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + + btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000; + btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * + btcoex->btcoex_period / 100; + btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) * + btcoex->btcoex_period / 100; + + setup_timer(&btcoex->period_timer, ath_btcoex_period_timer, + (unsigned long) sc); + + spin_lock_init(&btcoex->btcoex_lock); + + btcoex->no_stomp_timer = ath_gen_timer_alloc(sc->sc_ah, + ath_btcoex_no_stomp_timer, + ath_btcoex_no_stomp_timer, + (void *) sc, AR_FIRST_NDP_TIMER); + + if (!btcoex->no_stomp_timer) + return -ENOMEM; + + return 0; +} + +/* + * (Re)start btcoex timers + */ +void ath9k_btcoex_timer_resume(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_hw *ah = sc->sc_ah; + + ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, + "Starting btcoex timers"); + + /* make sure duty cycle timer is also stopped when resuming */ + if (btcoex->hw_timer_enabled) + ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer); + + btcoex->bt_priority_cnt = 0; + btcoex->bt_priority_time = jiffies; + sc->sc_flags &= ~(SC_OP_BT_PRIORITY_DETECTED | SC_OP_BT_SCAN); + + mod_timer(&btcoex->period_timer, jiffies); +} + + +/* + * Pause btcoex timer and bt duty cycle timer + */ +void ath9k_btcoex_timer_pause(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_hw *ah = sc->sc_ah; + + del_timer_sync(&btcoex->period_timer); + + if (btcoex->hw_timer_enabled) + ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); + + btcoex->hw_timer_enabled = false; +} diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index ae371448b5a0..2e767cf22f1e 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -52,28 +52,6 @@ module_exit(ath9k_exit); /* Helper Functions */ /********************/ -static u32 ath9k_hw_mac_usec(struct ath_hw *ah, u32 clks) -{ - struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; - - if (!ah->curchan) /* should really check for CCK instead */ - return clks / ATH9K_CLOCK_RATE_CCK; - if (conf->channel->band == IEEE80211_BAND_2GHZ) - return clks / ATH9K_CLOCK_RATE_2GHZ_OFDM; - - return clks / ATH9K_CLOCK_RATE_5GHZ_OFDM; -} - -static u32 ath9k_hw_mac_to_usec(struct ath_hw *ah, u32 clks) -{ - struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; - - if (conf_is_ht40(conf)) - return ath9k_hw_mac_usec(ah, clks) / 2; - else - return ath9k_hw_mac_usec(ah, clks); -} - static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs) { struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; @@ -343,30 +321,6 @@ static bool ath9k_hw_chip_test(struct ath_hw *ah) return true; } -static const char *ath9k_hw_devname(u16 devid) -{ - switch (devid) { - case AR5416_DEVID_PCI: - return "Atheros 5416"; - case AR5416_DEVID_PCIE: - return "Atheros 5418"; - case AR9160_DEVID_PCI: - return "Atheros 9160"; - case AR5416_AR9100_DEVID: - return "Atheros 9100"; - case AR9280_DEVID_PCI: - case AR9280_DEVID_PCIE: - return "Atheros 9280"; - case AR9285_DEVID_PCIE: - return "Atheros 9285"; - case AR5416_DEVID_AR9287_PCI: - case AR5416_DEVID_AR9287_PCIE: - return "Atheros 9287"; - } - - return NULL; -} - static void ath9k_hw_init_config(struct ath_hw *ah) { int i; @@ -380,7 +334,6 @@ static void ath9k_hw_init_config(struct ath_hw *ah) ah->config.pcie_clock_req = 0; ah->config.pcie_waen = 0; ah->config.analog_shiftreg = 1; - ah->config.ht_enable = 1; ah->config.ofdm_trig_low = 200; ah->config.ofdm_trig_high = 500; ah->config.cck_trig_high = 200; @@ -392,7 +345,12 @@ static void ath9k_hw_init_config(struct ath_hw *ah) ah->config.spurchans[i][1] = AR_NO_SPUR; } - ah->config.intr_mitigation = true; + if (ah->hw_version.devid != AR2427_DEVID_PCIE) + ah->config.ht_enable = 1; + else + ah->config.ht_enable = 0; + + ah->config.rx_intr_mitigation = true; /* * We need this for PCI devices only (Cardbus, PCI, miniPCI) @@ -437,8 +395,6 @@ static void ath9k_hw_init_defaults(struct ath_hw *ah) ah->beacon_interval = 100; ah->enable_32kHz_clock = DONT_USE_32KHZ; ah->slottime = (u32) -1; - ah->acktimeout = (u32) -1; - ah->ctstimeout = (u32) -1; ah->globaltxtimeout = (u32) -1; ah->power_mode = ATH9K_PM_UNDEFINED; } @@ -590,6 +546,7 @@ static bool ath9k_hw_devid_supported(u16 devid) case AR5416_DEVID_AR9287_PCI: case AR5416_DEVID_AR9287_PCIE: case AR9271_USB: + case AR2427_DEVID_PCIE: return true; default: break; @@ -1183,7 +1140,7 @@ static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah, AR_IMR_RXORN | AR_IMR_BCNMISC; - if (ah->config.intr_mitigation) + if (ah->config.rx_intr_mitigation) ah->mask_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR; else ah->mask_reg |= AR_IMR_RXOK; @@ -1203,34 +1160,25 @@ static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah, } } -static bool ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us) +static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us) { - if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_ACK))) { - ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, - "bad ack timeout %u\n", us); - ah->acktimeout = (u32) -1; - return false; - } else { - REG_RMW_FIELD(ah, AR_TIME_OUT, - AR_TIME_OUT_ACK, ath9k_hw_mac_to_clks(ah, us)); - ah->acktimeout = us; - return true; - } + u32 val = ath9k_hw_mac_to_clks(ah, us); + val = min(val, (u32) 0xFFFF); + REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val); } -static bool ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us) +static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us) { - if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_CTS))) { - ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, - "bad cts timeout %u\n", us); - ah->ctstimeout = (u32) -1; - return false; - } else { - REG_RMW_FIELD(ah, AR_TIME_OUT, - AR_TIME_OUT_CTS, ath9k_hw_mac_to_clks(ah, us)); - ah->ctstimeout = us; - return true; - } + u32 val = ath9k_hw_mac_to_clks(ah, us); + val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK)); + REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val); +} + +static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us) +{ + u32 val = ath9k_hw_mac_to_clks(ah, us); + val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS)); + REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val); } static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu) @@ -1247,31 +1195,48 @@ static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu) } } -static void ath9k_hw_init_user_settings(struct ath_hw *ah) +void ath9k_hw_init_global_settings(struct ath_hw *ah) { + struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; + int acktimeout; + int slottime; + int sifstime; + ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n", ah->misc_mode); if (ah->misc_mode != 0) REG_WRITE(ah, AR_PCU_MISC, REG_READ(ah, AR_PCU_MISC) | ah->misc_mode); - if (ah->slottime != (u32) -1) - ath9k_hw_setslottime(ah, ah->slottime); - if (ah->acktimeout != (u32) -1) - ath9k_hw_set_ack_timeout(ah, ah->acktimeout); - if (ah->ctstimeout != (u32) -1) - ath9k_hw_set_cts_timeout(ah, ah->ctstimeout); + + if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ) + sifstime = 16; + else + sifstime = 10; + + /* As defined by IEEE 802.11-2007 17.3.8.6 */ + slottime = ah->slottime + 3 * ah->coverage_class; + acktimeout = slottime + sifstime; + + /* + * Workaround for early ACK timeouts, add an offset to match the + * initval's 64us ack timeout value. + * This was initially only meant to work around an issue with delayed + * BA frames in some implementations, but it has been found to fix ACK + * timeout issues in other cases as well. + */ + if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ) + acktimeout += 64 - sifstime - ah->slottime; + + ath9k_hw_setslottime(ah, slottime); + ath9k_hw_set_ack_timeout(ah, acktimeout); + ath9k_hw_set_cts_timeout(ah, acktimeout); if (ah->globaltxtimeout != (u32) -1) ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout); } +EXPORT_SYMBOL(ath9k_hw_init_global_settings); -const char *ath9k_hw_probe(u16 vendorid, u16 devid) -{ - return vendorid == ATHEROS_VENDOR_ID ? - ath9k_hw_devname(devid) : NULL; -} - -void ath9k_hw_detach(struct ath_hw *ah) +void ath9k_hw_deinit(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); @@ -1289,7 +1254,7 @@ free_hw: kfree(ah); ah = NULL; } -EXPORT_SYMBOL(ath9k_hw_detach); +EXPORT_SYMBOL(ath9k_hw_deinit); /*******/ /* INI */ @@ -1345,6 +1310,16 @@ static void ath9k_hw_override_ini(struct ath_hw *ah, * Necessary to avoid issues on AR5416 2.0 */ REG_WRITE(ah, 0x9800 + (651 << 2), 0x11); + + /* + * Disable RIFS search on some chips to avoid baseband + * hang issues. + */ + if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) { + val = REG_READ(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS); + val &= ~AR_PHY_RIFS_INIT_DELAY; + REG_WRITE(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS, val); + } } static u32 ath9k_hw_def_ini_fixup(struct ath_hw *ah, @@ -2090,7 +2065,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) ath9k_enable_rfkill(ah); - ath9k_hw_init_user_settings(ah); + ath9k_hw_init_global_settings(ah); if (AR_SREV_9287_12_OR_LATER(ah)) { REG_WRITE(ah, AR_D_GBL_IFS_SIFS, @@ -2120,7 +2095,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, REG_WRITE(ah, AR_OBS, 8); - if (ah->config.intr_mitigation) { + if (ah->config.rx_intr_mitigation) { REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500); REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000); } @@ -2780,7 +2755,7 @@ bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked) *masked = isr & ATH9K_INT_COMMON; - if (ah->config.intr_mitigation) { + if (ah->config.rx_intr_mitigation) { if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM)) *masked |= ATH9K_INT_RX; } @@ -2913,7 +2888,7 @@ enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah, enum ath9k_int ints) } if (ints & ATH9K_INT_RX) { mask |= AR_IMR_RXERR; - if (ah->config.intr_mitigation) + if (ah->config.rx_intr_mitigation) mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM; else mask |= AR_IMR_RXOK | AR_IMR_RXDESC; @@ -3687,21 +3662,6 @@ u64 ath9k_hw_extend_tsf(struct ath_hw *ah, u32 rstamp) } EXPORT_SYMBOL(ath9k_hw_extend_tsf); -bool ath9k_hw_setslottime(struct ath_hw *ah, u32 us) -{ - if (us < ATH9K_SLOT_TIME_9 || us > ath9k_hw_mac_to_usec(ah, 0xffff)) { - ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, - "bad slot time %u\n", us); - ah->slottime = (u32) -1; - return false; - } else { - REG_WRITE(ah, AR_D_GBL_IFS_SLOT, ath9k_hw_mac_to_clks(ah, us)); - ah->slottime = us; - return true; - } -} -EXPORT_SYMBOL(ath9k_hw_setslottime); - void ath9k_hw_set11nmac2040(struct ath_hw *ah) { struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index e2b0c73a616f..dbbf7ca5f97d 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -40,6 +40,7 @@ #define AR9280_DEVID_PCI 0x0029 #define AR9280_DEVID_PCIE 0x002a #define AR9285_DEVID_PCIE 0x002b +#define AR2427_DEVID_PCIE 0x002c #define AR5416_AR9100_DEVID 0x000b @@ -212,7 +213,7 @@ struct ath9k_ops_config { u32 cck_trig_low; u32 enable_ani; int serialize_regmode; - bool intr_mitigation; + bool rx_intr_mitigation; #define SPUR_DISABLE 0 #define SPUR_ENABLE_IOCTL 1 #define SPUR_ENABLE_EEPROM 2 @@ -551,10 +552,9 @@ struct ath_hw { u32 *bank6Temp; int16_t txpower_indexoffset; + int coverage_class; u32 beacon_interval; u32 slottime; - u32 acktimeout; - u32 ctstimeout; u32 globaltxtimeout; /* ANI */ @@ -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); @@ -668,7 +668,7 @@ void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64); void ath9k_hw_reset_tsf(struct ath_hw *ah); void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting); u64 ath9k_hw_extend_tsf(struct ath_hw *ah, u32 rstamp); -bool ath9k_hw_setslottime(struct ath_hw *ah, u32 us); +void ath9k_hw_init_global_settings(struct ath_hw *ah); void ath9k_hw_set11nmac2040(struct ath_hw *ah); void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period); void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah, diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c new file mode 100644 index 000000000000..623c2f884987 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -0,0 +1,863 @@ +/* + * Copyright (c) 2008-2009 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 "ath9k.h" + +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 unsigned int ath9k_debug = ATH_DBG_DEFAULT; +module_param_named(debug, ath9k_debug, uint, 0); +MODULE_PARM_DESC(debug, "Debugging mask"); + +int modparam_nohwcrypt; +module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); +MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); + +/* We use the hw_value as an index into our private channel structure */ + +#define CHAN2G(_freq, _idx) { \ + .center_freq = (_freq), \ + .hw_value = (_idx), \ + .max_power = 20, \ +} + +#define CHAN5G(_freq, _idx) { \ + .band = IEEE80211_BAND_5GHZ, \ + .center_freq = (_freq), \ + .hw_value = (_idx), \ + .max_power = 20, \ +} + +/* Some 2 GHz radios are actually tunable on 2312-2732 + * on 5 MHz steps, we support the channels which we know + * we have calibration data for all cards though to make + * this static */ +static struct ieee80211_channel ath9k_2ghz_chantable[] = { + CHAN2G(2412, 0), /* Channel 1 */ + CHAN2G(2417, 1), /* Channel 2 */ + CHAN2G(2422, 2), /* Channel 3 */ + CHAN2G(2427, 3), /* Channel 4 */ + CHAN2G(2432, 4), /* Channel 5 */ + CHAN2G(2437, 5), /* Channel 6 */ + CHAN2G(2442, 6), /* Channel 7 */ + CHAN2G(2447, 7), /* Channel 8 */ + CHAN2G(2452, 8), /* Channel 9 */ + CHAN2G(2457, 9), /* Channel 10 */ + CHAN2G(2462, 10), /* Channel 11 */ + CHAN2G(2467, 11), /* Channel 12 */ + CHAN2G(2472, 12), /* Channel 13 */ + CHAN2G(2484, 13), /* Channel 14 */ +}; + +/* Some 5 GHz radios are actually tunable on XXXX-YYYY + * on 5 MHz steps, we support the channels which we know + * we have calibration data for all cards though to make + * this static */ +static struct ieee80211_channel ath9k_5ghz_chantable[] = { + /* _We_ call this UNII 1 */ + CHAN5G(5180, 14), /* Channel 36 */ + CHAN5G(5200, 15), /* Channel 40 */ + CHAN5G(5220, 16), /* Channel 44 */ + CHAN5G(5240, 17), /* Channel 48 */ + /* _We_ call this UNII 2 */ + CHAN5G(5260, 18), /* Channel 52 */ + CHAN5G(5280, 19), /* Channel 56 */ + CHAN5G(5300, 20), /* Channel 60 */ + CHAN5G(5320, 21), /* Channel 64 */ + /* _We_ call this "Middle band" */ + CHAN5G(5500, 22), /* Channel 100 */ + CHAN5G(5520, 23), /* Channel 104 */ + CHAN5G(5540, 24), /* Channel 108 */ + CHAN5G(5560, 25), /* Channel 112 */ + CHAN5G(5580, 26), /* Channel 116 */ + CHAN5G(5600, 27), /* Channel 120 */ + CHAN5G(5620, 28), /* Channel 124 */ + CHAN5G(5640, 29), /* Channel 128 */ + CHAN5G(5660, 30), /* Channel 132 */ + CHAN5G(5680, 31), /* Channel 136 */ + CHAN5G(5700, 32), /* Channel 140 */ + /* _We_ call this UNII 3 */ + CHAN5G(5745, 33), /* Channel 149 */ + CHAN5G(5765, 34), /* Channel 153 */ + CHAN5G(5785, 35), /* Channel 157 */ + CHAN5G(5805, 36), /* Channel 161 */ + CHAN5G(5825, 37), /* Channel 165 */ +}; + +/* Atheros hardware rate code addition for short premble */ +#define SHPCHECK(__hw_rate, __flags) \ + ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04 ) : 0) + +#define RATE(_bitrate, _hw_rate, _flags) { \ + .bitrate = (_bitrate), \ + .flags = (_flags), \ + .hw_value = (_hw_rate), \ + .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \ +} + +static struct ieee80211_rate ath9k_legacy_rates[] = { + RATE(10, 0x1b, 0), + RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), + RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), + RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), + RATE(60, 0x0b, 0), + RATE(90, 0x0f, 0), + RATE(120, 0x0a, 0), + RATE(180, 0x0e, 0), + RATE(240, 0x09, 0), + RATE(360, 0x0d, 0), + RATE(480, 0x08, 0), + RATE(540, 0x0c, 0), +}; + +static void ath9k_deinit_softc(struct ath_softc *sc); + +/* + * Read and write, they both share the same lock. We do this to serialize + * reads and writes on Atheros 802.11n PCI devices only. This is required + * as the FIFO on these devices can only accept sanely 2 requests. + */ + +static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath_softc *sc = (struct ath_softc *) common->priv; + + if (ah->config.serialize_regmode == SER_REG_MODE_ON) { + unsigned long flags; + spin_lock_irqsave(&sc->sc_serial_rw, flags); + iowrite32(val, sc->mem + reg_offset); + spin_unlock_irqrestore(&sc->sc_serial_rw, flags); + } else + iowrite32(val, sc->mem + reg_offset); +} + +static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath_softc *sc = (struct ath_softc *) common->priv; + u32 val; + + if (ah->config.serialize_regmode == SER_REG_MODE_ON) { + unsigned long flags; + spin_lock_irqsave(&sc->sc_serial_rw, flags); + val = ioread32(sc->mem + reg_offset); + spin_unlock_irqrestore(&sc->sc_serial_rw, flags); + } else + val = ioread32(sc->mem + reg_offset); + return val; +} + +static const struct ath_ops ath9k_common_ops = { + .read = ath9k_ioread32, + .write = ath9k_iowrite32, +}; + +/**************************/ +/* Initialization */ +/**************************/ + +static void setup_ht_cap(struct ath_softc *sc, + struct ieee80211_sta_ht_cap *ht_info) +{ + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + u8 tx_streams, rx_streams; + + 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 = IEEE80211_HT_MAX_AMPDU_64K; + ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8; + + /* set up supported mcs set */ + memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); + tx_streams = !(common->tx_chainmask & (common->tx_chainmask - 1)) ? + 1 : 2; + rx_streams = !(common->rx_chainmask & (common->rx_chainmask - 1)) ? + 1 : 2; + + if (tx_streams != rx_streams) { + ath_print(common, ATH_DBG_CONFIG, + "TX streams %d, RX streams: %d\n", + tx_streams, rx_streams); + ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; + ht_info->mcs.tx_params |= ((tx_streams - 1) << + IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); + } + + ht_info->mcs.rx_mask[0] = 0xff; + if (rx_streams >= 2) + ht_info->mcs.rx_mask[1] = 0xff; + + ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED; +} + +static int ath9k_reg_notifier(struct wiphy *wiphy, + struct regulatory_request *request) +{ + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + struct ath_regulatory *reg = ath9k_hw_regulatory(sc->sc_ah); + + return ath_reg_notifier_apply(wiphy, request, reg); +} + +/* + * This function will allocate both the DMA descriptor structure, and the + * buffers it contains. These are used to contain the descriptors used + * by the system. +*/ +int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, + struct list_head *head, const char *name, + int nbuf, int ndesc) +{ +#define DS2PHYS(_dd, _ds) \ + ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) +#define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) +#define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + struct ath_desc *ds; + struct ath_buf *bf; + int i, bsize, error; + + ath_print(common, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", + name, nbuf, ndesc); + + INIT_LIST_HEAD(head); + /* ath_desc must be a multiple of DWORDs */ + if ((sizeof(struct ath_desc) % 4) != 0) { + ath_print(common, ATH_DBG_FATAL, + "ath_desc not DWORD aligned\n"); + BUG_ON((sizeof(struct ath_desc) % 4) != 0); + error = -ENOMEM; + goto fail; + } + + dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; + + /* + * Need additional DMA memory because we can't use + * descriptors that cross the 4K page boundary. Assume + * one skipped descriptor per 4K page. + */ + if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { + u32 ndesc_skipped = + ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); + u32 dma_len; + + while (ndesc_skipped) { + dma_len = ndesc_skipped * sizeof(struct ath_desc); + dd->dd_desc_len += dma_len; + + ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); + }; + } + + /* allocate descriptors */ + dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, + &dd->dd_desc_paddr, GFP_KERNEL); + if (dd->dd_desc == NULL) { + error = -ENOMEM; + goto fail; + } + ds = dd->dd_desc; + ath_print(common, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", + name, ds, (u32) dd->dd_desc_len, + ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); + + /* allocate buffers */ + bsize = sizeof(struct ath_buf) * nbuf; + bf = kzalloc(bsize, GFP_KERNEL); + if (bf == NULL) { + error = -ENOMEM; + goto fail2; + } + dd->dd_bufptr = bf; + + for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { + bf->bf_desc = ds; + bf->bf_daddr = DS2PHYS(dd, ds); + + if (!(sc->sc_ah->caps.hw_caps & + ATH9K_HW_CAP_4KB_SPLITTRANS)) { + /* + * Skip descriptor addresses which can cause 4KB + * boundary crossing (addr + length) with a 32 dword + * descriptor fetch. + */ + while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { + BUG_ON((caddr_t) bf->bf_desc >= + ((caddr_t) dd->dd_desc + + dd->dd_desc_len)); + + ds += ndesc; + bf->bf_desc = ds; + bf->bf_daddr = DS2PHYS(dd, ds); + } + } + list_add_tail(&bf->list, head); + } + return 0; +fail2: + dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, + dd->dd_desc_paddr); +fail: + memset(dd, 0, sizeof(*dd)); + return error; +#undef ATH_DESC_4KB_BOUND_CHECK +#undef ATH_DESC_4KB_BOUND_NUM_SKIPPED +#undef DS2PHYS +} + +static void ath9k_init_crypto(struct ath_softc *sc) +{ + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + int i = 0; + + /* Get the hardware key cache 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", + ATH_KEYMAX, common->keymax); + common->keymax = ATH_KEYMAX; + } + + /* + * Reset the key cache since some parts do not + * reset the contents on initial power up. + */ + for (i = 0; i < common->keymax; i++) + ath9k_hw_keyreset(sc->sc_ah, (u16) i); + + if (ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_CIPHER, + ATH9K_CIPHER_TKIP, NULL)) { + /* + * Whether we should enable h/w TKIP MIC. + * XXX: if we don't support WME TKIP MIC, then we wouldn't + * 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); + } + + /* + * Check whether the separate key cache entries + * are required to handle both tx+rx MIC keys. + * With split mic keys the number of stations is limited + * to 27 otherwise 59. + */ + if (ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_CIPHER, + ATH9K_CIPHER_TKIP, NULL) + && ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_CIPHER, + ATH9K_CIPHER_MIC, NULL) + && 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(sc->sc_ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) + (void)ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_MCAST_KEYSRCH, + 1, 1, NULL); + +} + +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; + } + + return 0; +} + +static int ath9k_init_queues(struct ath_softc *sc) +{ + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + int i = 0; + + for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) + sc->tx.hwq_map[i] = -1; + + 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; + } + + 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; + sc->sbands[IEEE80211_BAND_2GHZ].n_channels = + ARRAY_SIZE(ath9k_2ghz_chantable); + sc->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates; + sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates = + ARRAY_SIZE(ath9k_legacy_rates); + } + + if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { + sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; + sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; + sc->sbands[IEEE80211_BAND_5GHZ].n_channels = + ARRAY_SIZE(ath9k_5ghz_chantable); + sc->sbands[IEEE80211_BAND_5GHZ].bitrates = + ath9k_legacy_rates + 4; + sc->sbands[IEEE80211_BAND_5GHZ].n_bitrates = + ARRAY_SIZE(ath9k_legacy_rates) - 4; + } +} + +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; + + 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; + +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); + + kfree(ah); + sc->sc_ah = NULL; + + return ret; +} + +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 | + IEEE80211_HW_SUPPORTS_PS | + IEEE80211_HW_PS_NULLFUNC_STACK | + IEEE80211_HW_SPECTRUM_MGMT | + IEEE80211_HW_REPORTS_TX_ACK_STATUS; + + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) + hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION; + + if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) + hw->flags |= IEEE80211_HW_MFP_CAPABLE; + + hw->wiphy->interface_modes = + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC) | + BIT(NL80211_IFTYPE_MESH_POINT); + + hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; + + hw->queues = 4; + hw->max_rates = 4; + hw->channel_change_time = 5000; + hw->max_listen_interval = 10; + hw->max_rate_tries = 10; + hw->sta_data_size = sizeof(struct ath_node); + hw->vif_data_size = sizeof(struct ath_vif); + + hw->rate_control_algorithm = "ath9k_rate_control"; + + if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) + hw->wiphy->bands[IEEE80211_BAND_2GHZ] = + &sc->sbands[IEEE80211_BAND_2GHZ]; + 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); +} + +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; + struct ath_regulatory *reg; + + /* Bring up device */ + error = ath9k_init_softc(devid, sc, subsysid, bus_ops); + if (error != 0) + goto error_init; + + ah = sc->sc_ah; + common = ath9k_hw_common(ah); + ath9k_set_hw_capab(sc, hw); + + /* Initialize regulatory */ + error = ath_regd_init(&common->regulatory, sc->hw->wiphy, + ath9k_reg_notifier); + if (error) + goto error_regd; + + reg = &common->regulatory; + + /* Setup TX DMA */ + error = ath_tx_init(sc, ATH_TXBUF); + if (error != 0) + goto error_tx; + + /* Setup RX DMA */ + error = ath_rx_init(sc, ATH_RXBUF); + if (error != 0) + 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); + + ath_init_leds(sc); + ath_start_rfkill_poll(sc); + + return 0; + +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; +} + +/*****************************/ +/* De-Initialization */ +/*****************************/ + +static void ath9k_deinit_softc(struct ath_softc *sc) +{ + int i = 0; + + 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); + + 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); +} + +void ath9k_deinit_device(struct ath_softc *sc) +{ + struct ieee80211_hw *hw = sc->hw; + int i = 0; + + ath9k_ps_wakeup(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]; + if (aphy == NULL) + continue; + sc->sec_wiphy[i] = NULL; + 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); + ath9k_deinit_softc(sc); +} + +void ath_descdma_cleanup(struct ath_softc *sc, + struct ath_descdma *dd, + struct list_head *head) +{ + dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, + dd->dd_desc_paddr); + + INIT_LIST_HEAD(head); + kfree(dd->dd_bufptr); + memset(dd, 0, sizeof(*dd)); +} + +/************************/ +/* Module Hooks */ +/************************/ + +static int __init ath9k_init(void) +{ + int error; + + /* Register rate control algorithm */ + error = ath_rate_control_register(); + if (error != 0) { + printk(KERN_ERR + "ath9k: Unable to register rate control " + "algorithm: %d\n", + error); + goto err_out; + } + + error = ath9k_debug_create_root(); + if (error) { + printk(KERN_ERR + "ath9k: Unable to create debugfs root: %d\n", + error); + goto err_rate_unregister; + } + + error = ath_pci_init(); + if (error < 0) { + printk(KERN_ERR + "ath9k: No PCI devices found, driver not installed.\n"); + error = -ENODEV; + goto err_remove_root; + } + + error = ath_ahb_init(); + if (error < 0) { + error = -ENODEV; + goto err_pci_exit; + } + + return 0; + + err_pci_exit: + ath_pci_exit(); + + err_remove_root: + ath9k_debug_remove_root(); + err_rate_unregister: + ath_rate_control_unregister(); + err_out: + return error; +} +module_init(ath9k_init); + +static void __exit ath9k_exit(void) +{ + ath_ahb_exit(); + ath_pci_exit(); + ath9k_debug_remove_root(); + ath_rate_control_unregister(); + printk(KERN_INFO "%s: Driver unloaded\n", dev_info); +} +module_exit(ath9k_exit); diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h index e185479e295e..29851e6376a9 100644 --- a/drivers/net/wireless/ath/ath9k/mac.h +++ b/drivers/net/wireless/ath/ath9k/mac.h @@ -167,6 +167,40 @@ struct ath_rx_status { #define ATH9K_RXKEYIX_INVALID ((u8)-1) #define ATH9K_TXKEYIX_INVALID ((u32)-1) +enum ath9k_phyerr { + ATH9K_PHYERR_UNDERRUN = 0, /* Transmit underrun */ + ATH9K_PHYERR_TIMING = 1, /* Timing error */ + ATH9K_PHYERR_PARITY = 2, /* Illegal parity */ + ATH9K_PHYERR_RATE = 3, /* Illegal rate */ + ATH9K_PHYERR_LENGTH = 4, /* Illegal length */ + ATH9K_PHYERR_RADAR = 5, /* Radar detect */ + ATH9K_PHYERR_SERVICE = 6, /* Illegal service */ + ATH9K_PHYERR_TOR = 7, /* Transmit override receive */ + + ATH9K_PHYERR_OFDM_TIMING = 17, + ATH9K_PHYERR_OFDM_SIGNAL_PARITY = 18, + ATH9K_PHYERR_OFDM_RATE_ILLEGAL = 19, + ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL = 20, + ATH9K_PHYERR_OFDM_POWER_DROP = 21, + ATH9K_PHYERR_OFDM_SERVICE = 22, + ATH9K_PHYERR_OFDM_RESTART = 23, + ATH9K_PHYERR_FALSE_RADAR_EXT = 24, + + ATH9K_PHYERR_CCK_TIMING = 25, + ATH9K_PHYERR_CCK_HEADER_CRC = 26, + ATH9K_PHYERR_CCK_RATE_ILLEGAL = 27, + ATH9K_PHYERR_CCK_SERVICE = 30, + ATH9K_PHYERR_CCK_RESTART = 31, + ATH9K_PHYERR_CCK_LENGTH_ILLEGAL = 32, + ATH9K_PHYERR_CCK_POWER_DROP = 33, + + ATH9K_PHYERR_HT_CRC_ERROR = 34, + ATH9K_PHYERR_HT_LENGTH_ILLEGAL = 35, + ATH9K_PHYERR_HT_RATE_ILLEGAL = 36, + + ATH9K_PHYERR_MAX = 37, +}; + struct ath_desc { u32 ds_link; u32 ds_data; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 643bea35686f..67ca4e5a6017 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -18,118 +18,6 @@ #include "ath9k.h" #include "btcoex.h" -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 int modparam_nohwcrypt; -module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); -MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); - -static unsigned int ath9k_debug = ATH_DBG_DEFAULT; -module_param_named(debug, ath9k_debug, uint, 0); -MODULE_PARM_DESC(debug, "Debugging mask"); - -/* We use the hw_value as an index into our private channel structure */ - -#define CHAN2G(_freq, _idx) { \ - .center_freq = (_freq), \ - .hw_value = (_idx), \ - .max_power = 20, \ -} - -#define CHAN5G(_freq, _idx) { \ - .band = IEEE80211_BAND_5GHZ, \ - .center_freq = (_freq), \ - .hw_value = (_idx), \ - .max_power = 20, \ -} - -/* Some 2 GHz radios are actually tunable on 2312-2732 - * on 5 MHz steps, we support the channels which we know - * we have calibration data for all cards though to make - * this static */ -static struct ieee80211_channel ath9k_2ghz_chantable[] = { - CHAN2G(2412, 0), /* Channel 1 */ - CHAN2G(2417, 1), /* Channel 2 */ - CHAN2G(2422, 2), /* Channel 3 */ - CHAN2G(2427, 3), /* Channel 4 */ - CHAN2G(2432, 4), /* Channel 5 */ - CHAN2G(2437, 5), /* Channel 6 */ - CHAN2G(2442, 6), /* Channel 7 */ - CHAN2G(2447, 7), /* Channel 8 */ - CHAN2G(2452, 8), /* Channel 9 */ - CHAN2G(2457, 9), /* Channel 10 */ - CHAN2G(2462, 10), /* Channel 11 */ - CHAN2G(2467, 11), /* Channel 12 */ - CHAN2G(2472, 12), /* Channel 13 */ - CHAN2G(2484, 13), /* Channel 14 */ -}; - -/* Some 5 GHz radios are actually tunable on XXXX-YYYY - * on 5 MHz steps, we support the channels which we know - * we have calibration data for all cards though to make - * this static */ -static struct ieee80211_channel ath9k_5ghz_chantable[] = { - /* _We_ call this UNII 1 */ - CHAN5G(5180, 14), /* Channel 36 */ - CHAN5G(5200, 15), /* Channel 40 */ - CHAN5G(5220, 16), /* Channel 44 */ - CHAN5G(5240, 17), /* Channel 48 */ - /* _We_ call this UNII 2 */ - CHAN5G(5260, 18), /* Channel 52 */ - CHAN5G(5280, 19), /* Channel 56 */ - CHAN5G(5300, 20), /* Channel 60 */ - CHAN5G(5320, 21), /* Channel 64 */ - /* _We_ call this "Middle band" */ - CHAN5G(5500, 22), /* Channel 100 */ - CHAN5G(5520, 23), /* Channel 104 */ - CHAN5G(5540, 24), /* Channel 108 */ - CHAN5G(5560, 25), /* Channel 112 */ - CHAN5G(5580, 26), /* Channel 116 */ - CHAN5G(5600, 27), /* Channel 120 */ - CHAN5G(5620, 28), /* Channel 124 */ - CHAN5G(5640, 29), /* Channel 128 */ - CHAN5G(5660, 30), /* Channel 132 */ - CHAN5G(5680, 31), /* Channel 136 */ - CHAN5G(5700, 32), /* Channel 140 */ - /* _We_ call this UNII 3 */ - CHAN5G(5745, 33), /* Channel 149 */ - CHAN5G(5765, 34), /* Channel 153 */ - CHAN5G(5785, 35), /* Channel 157 */ - CHAN5G(5805, 36), /* Channel 161 */ - CHAN5G(5825, 37), /* Channel 165 */ -}; - -/* Atheros hardware rate code addition for short premble */ -#define SHPCHECK(__hw_rate, __flags) \ - ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04 ) : 0) - -#define RATE(_bitrate, _hw_rate, _flags) { \ - .bitrate = (_bitrate), \ - .flags = (_flags), \ - .hw_value = (_hw_rate), \ - .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \ -} - -static struct ieee80211_rate ath9k_legacy_rates[] = { - RATE(10, 0x1b, 0), - RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), - RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), - RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), - RATE(60, 0x0b, 0), - RATE(90, 0x0f, 0), - RATE(120, 0x0a, 0), - RATE(180, 0x0e, 0), - RATE(240, 0x09, 0), - RATE(360, 0x0d, 0), - RATE(480, 0x08, 0), - RATE(540, 0x0c, 0), -}; - static void ath_cache_conf_rate(struct ath_softc *sc, struct ieee80211_conf *conf) { @@ -221,7 +109,7 @@ static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, return channel; } -static bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode) +bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode) { unsigned long flags; bool ret; @@ -255,11 +143,13 @@ void ath9k_ps_restore(struct ath_softc *sc) if (--sc->ps_usecount != 0) goto unlock; - if (sc->ps_enabled && - !(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON | - SC_OP_WAIT_FOR_CAB | - SC_OP_WAIT_FOR_PSPOLL_DATA | - SC_OP_WAIT_FOR_TX_ACK))) + if (sc->ps_idle) + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP); + else if (sc->ps_enabled && + !(sc->ps_flags & (PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA | + PS_WAIT_FOR_TX_ACK))) ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); unlock: @@ -316,7 +206,7 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, r = ath9k_hw_reset(ah, hchan, fastcc); if (r) { ath_print(common, ATH_DBG_FATAL, - "Unable to reset channel (%u Mhz) " + "Unable to reset channel (%u MHz), " "reset status %d\n", channel->center_freq, r); spin_unlock_bh(&sc->sc_resetlock); @@ -349,7 +239,7 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, * When the task is complete, it reschedules itself depending on the * appropriate interval that was calculated. */ -static void ath_ani_calibrate(unsigned long data) +void ath_ani_calibrate(unsigned long data) { struct ath_softc *sc = (struct ath_softc *)data; struct ath_hw *ah = sc->sc_ah; @@ -363,14 +253,6 @@ static void ath_ani_calibrate(unsigned long data) short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; - /* - * don't calibrate when we're scanning. - * we are most likely not on our home channel. - */ - spin_lock(&sc->ani_lock); - if (sc->sc_flags & SC_OP_SCANNING) - goto set_timer; - /* Only calibrate if awake */ if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) goto set_timer; @@ -437,7 +319,6 @@ static void ath_ani_calibrate(unsigned long data) ath9k_ps_restore(sc); set_timer: - spin_unlock(&sc->ani_lock); /* * Set timer interval based on previous results. * The interval must be the shortest necessary to satisfy ANI, @@ -513,7 +394,7 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) ath_tx_node_cleanup(sc, an); } -static void ath9k_tasklet(unsigned long data) +void ath9k_tasklet(unsigned long data) { struct ath_softc *sc = (struct ath_softc *)data; struct ath_hw *ah = sc->sc_ah; @@ -545,7 +426,7 @@ static void ath9k_tasklet(unsigned long data) */ ath_print(common, ATH_DBG_PS, "TSFOOR - Sync with next Beacon\n"); - sc->sc_flags |= SC_OP_WAIT_FOR_BEACON | SC_OP_BEACON_SYNC; + sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC; } if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) @@ -646,7 +527,7 @@ irqreturn_t ath_isr(int irq, void *dev) * receive frames */ ath9k_setpower(sc, ATH9K_PM_AWAKE); ath9k_hw_setrxabort(sc->sc_ah, 0); - sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; + sc->ps_flags |= PS_WAIT_FOR_BEACON; } chip_reset: @@ -928,49 +809,12 @@ static void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf clear_bit(key->hw_key_idx + 64, common->keymap); if (common->splitmic) { + ath9k_hw_keyreset(ah, key->hw_key_idx + 32); clear_bit(key->hw_key_idx + 32, common->keymap); clear_bit(key->hw_key_idx + 64 + 32, common->keymap); } } -static void setup_ht_cap(struct ath_softc *sc, - struct ieee80211_sta_ht_cap *ht_info) -{ - struct ath_common *common = ath9k_hw_common(sc->sc_ah); - u8 tx_streams, rx_streams; - - 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 = IEEE80211_HT_MAX_AMPDU_64K; - ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8; - - /* set up supported mcs set */ - memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); - tx_streams = !(common->tx_chainmask & (common->tx_chainmask - 1)) ? - 1 : 2; - rx_streams = !(common->rx_chainmask & (common->rx_chainmask - 1)) ? - 1 : 2; - - if (tx_streams != rx_streams) { - ath_print(common, ATH_DBG_CONFIG, - "TX streams %d, RX streams: %d\n", - tx_streams, rx_streams); - ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; - ht_info->mcs.tx_params |= ((tx_streams - 1) << - IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); - } - - ht_info->mcs.rx_mask[0] = 0xff; - if (rx_streams >= 2) - ht_info->mcs.rx_mask[1] = 0xff; - - ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED; -} - static void ath9k_bss_assoc_info(struct ath_softc *sc, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf) @@ -992,7 +836,7 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, * on the receipt of the first Beacon frame (i.e., * after time sync with the AP). */ - sc->sc_flags |= SC_OP_BEACON_SYNC; + sc->ps_flags |= PS_BEACON_SYNC; /* Configure the beacon */ ath_beacon_config(sc, vif); @@ -1009,174 +853,6 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, } } -/********************************/ -/* LED functions */ -/********************************/ - -static void ath_led_blink_work(struct work_struct *work) -{ - struct ath_softc *sc = container_of(work, struct ath_softc, - ath_led_blink_work.work); - - if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) - return; - - if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) || - (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); - else - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, - (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); - - ieee80211_queue_delayed_work(sc->hw, - &sc->ath_led_blink_work, - (sc->sc_flags & SC_OP_LED_ON) ? - msecs_to_jiffies(sc->led_off_duration) : - msecs_to_jiffies(sc->led_on_duration)); - - sc->led_on_duration = sc->led_on_cnt ? - max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) : - ATH_LED_ON_DURATION_IDLE; - sc->led_off_duration = sc->led_off_cnt ? - max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) : - ATH_LED_OFF_DURATION_IDLE; - sc->led_on_cnt = sc->led_off_cnt = 0; - if (sc->sc_flags & SC_OP_LED_ON) - sc->sc_flags &= ~SC_OP_LED_ON; - else - sc->sc_flags |= SC_OP_LED_ON; -} - -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) { - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, - (led->led_type == ATH_LED_RADIO)); - sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; - if (led->led_type == ATH_LED_RADIO) - sc->sc_flags &= ~SC_OP_LED_ON; - } else { - sc->led_off_cnt++; - } - break; - case LED_FULL: - if (led->led_type == ATH_LED_ASSOC) { - sc->sc_flags |= SC_OP_LED_ASSOCIATED; - ieee80211_queue_delayed_work(sc->hw, - &sc->ath_led_blink_work, 0); - } else if (led->led_type == ATH_LED_RADIO) { - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); - sc->sc_flags |= SC_OP_LED_ON; - } else { - sc->led_on_cnt++; - } - 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) - ath_print(ath9k_hw_common(sc->sc_ah), 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, sc->sc_ah->led_pin, 1); -} - -static void ath_init_leds(struct ath_softc *sc) -{ - char *trigger; - int ret; - - if (AR_SREV_9287(sc->sc_ah)) - sc->sc_ah->led_pin = ATH_LED_PIN_9287; - else - sc->sc_ah->led_pin = ATH_LED_PIN_DEF; - - /* Configure gpio 1 for output */ - ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin, - AR_GPIO_OUTPUT_MUX_AS_OUTPUT); - /* LED off, active low */ - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); - - INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); - - 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: - cancel_delayed_work_sync(&sc->ath_led_blink_work); - ath_deinit_leds(sc); -} - void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw) { struct ath_hw *ah = sc->sc_ah; @@ -1194,7 +870,7 @@ void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw) r = ath9k_hw_reset(ah, ah->curchan, false); if (r) { ath_print(common, ATH_DBG_FATAL, - "Unable to reset channel %u (%uMhz) ", + "Unable to reset channel (%u MHz), " "reset status %d\n", channel->center_freq, r); } @@ -1249,7 +925,7 @@ void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw) r = ath9k_hw_reset(ah, ah->curchan, false); if (r) { ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, - "Unable to reset channel %u (%uMhz) " + "Unable to reset channel (%u MHz), " "reset status %d\n", channel->center_freq, r); } @@ -1261,711 +937,6 @@ void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw) ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); } -/*******************/ -/* Rfkill */ -/*******************/ - -static bool ath_is_rfkill_set(struct ath_softc *sc) -{ - struct ath_hw *ah = sc->sc_ah; - - return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == - ah->rfkill_polarity; -} - -static void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) -{ - struct ath_wiphy *aphy = hw->priv; - struct ath_softc *sc = aphy->sc; - bool blocked = !!ath_is_rfkill_set(sc); - - wiphy_rfkill_set_hw_state(hw->wiphy, blocked); -} - -static void ath_start_rfkill_poll(struct ath_softc *sc) -{ - struct ath_hw *ah = sc->sc_ah; - - if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) - wiphy_rfkill_start_polling(sc->hw->wiphy); -} - -static void ath9k_uninit_hw(struct ath_softc *sc) -{ - struct ath_hw *ah = sc->sc_ah; - - BUG_ON(!ah); - - ath9k_exit_debug(ah); - ath9k_hw_detach(ah); - sc->sc_ah = NULL; -} - -static void ath_clean_core(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); - - for (i = 0; i < sc->num_sec_wiphy; i++) { - struct ath_wiphy *aphy = sc->sec_wiphy[i]; - if (aphy == NULL) - continue; - sc->sec_wiphy[i] = NULL; - ieee80211_unregister_hw(aphy->hw); - ieee80211_free_hw(aphy->hw); - } - 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); -} - -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); -} - -static int ath9k_reg_notifier(struct wiphy *wiphy, - struct regulatory_request *request) -{ - struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); - struct ath_wiphy *aphy = hw->priv; - struct ath_softc *sc = aphy->sc; - struct ath_regulatory *reg = ath9k_hw_regulatory(sc->sc_ah); - - return ath_reg_notifier_apply(wiphy, request, reg); -} - -/* - * Detects if there is any priority bt traffic - */ -static void ath_detect_bt_priority(struct ath_softc *sc) -{ - struct ath_btcoex *btcoex = &sc->btcoex; - struct ath_hw *ah = sc->sc_ah; - - if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio)) - btcoex->bt_priority_cnt++; - - if (time_after(jiffies, btcoex->bt_priority_time + - msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) { - if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { - ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_BTCOEX, - "BT priority traffic detected"); - sc->sc_flags |= SC_OP_BT_PRIORITY_DETECTED; - } else { - sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED; - } - - btcoex->bt_priority_cnt = 0; - btcoex->bt_priority_time = jiffies; - } -} - -/* - * Configures appropriate weight based on stomp type. - */ -static void ath9k_btcoex_bt_stomp(struct ath_softc *sc, - enum ath_stomp_type stomp_type) -{ - struct ath_hw *ah = sc->sc_ah; - - switch (stomp_type) { - case ATH_BTCOEX_STOMP_ALL: - ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, - AR_STOMP_ALL_WLAN_WGHT); - break; - case ATH_BTCOEX_STOMP_LOW: - ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, - AR_STOMP_LOW_WLAN_WGHT); - break; - case ATH_BTCOEX_STOMP_NONE: - ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, - AR_STOMP_NONE_WLAN_WGHT); - break; - default: - ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, - "Invalid Stomptype\n"); - break; - } - - ath9k_hw_btcoex_enable(ah); -} - -static void ath9k_gen_timer_start(struct ath_hw *ah, - struct ath_gen_timer *timer, - u32 timer_next, - u32 timer_period) -{ - struct ath_common *common = ath9k_hw_common(ah); - struct ath_softc *sc = (struct ath_softc *) common->priv; - - ath9k_hw_gen_timer_start(ah, timer, timer_next, timer_period); - - if ((sc->imask & ATH9K_INT_GENTIMER) == 0) { - ath9k_hw_set_interrupts(ah, 0); - sc->imask |= ATH9K_INT_GENTIMER; - ath9k_hw_set_interrupts(ah, sc->imask); - } -} - -static void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) -{ - struct ath_common *common = ath9k_hw_common(ah); - struct ath_softc *sc = (struct ath_softc *) common->priv; - struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; - - ath9k_hw_gen_timer_stop(ah, timer); - - /* if no timer is enabled, turn off interrupt mask */ - if (timer_table->timer_mask.val == 0) { - ath9k_hw_set_interrupts(ah, 0); - sc->imask &= ~ATH9K_INT_GENTIMER; - ath9k_hw_set_interrupts(ah, sc->imask); - } -} - -/* - * This is the master bt coex timer which runs for every - * 45ms, bt traffic will be given priority during 55% of this - * period while wlan gets remaining 45% - */ -static void ath_btcoex_period_timer(unsigned long data) -{ - struct ath_softc *sc = (struct ath_softc *) data; - struct ath_hw *ah = sc->sc_ah; - struct ath_btcoex *btcoex = &sc->btcoex; - - ath_detect_bt_priority(sc); - - spin_lock_bh(&btcoex->btcoex_lock); - - ath9k_btcoex_bt_stomp(sc, btcoex->bt_stomp_type); - - spin_unlock_bh(&btcoex->btcoex_lock); - - if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) { - if (btcoex->hw_timer_enabled) - ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); - - ath9k_gen_timer_start(ah, - btcoex->no_stomp_timer, - (ath9k_hw_gettsf32(ah) + - btcoex->btcoex_no_stomp), - btcoex->btcoex_no_stomp * 10); - btcoex->hw_timer_enabled = true; - } - - mod_timer(&btcoex->period_timer, jiffies + - msecs_to_jiffies(ATH_BTCOEX_DEF_BT_PERIOD)); -} - -/* - * Generic tsf based hw timer which configures weight - * registers to time slice between wlan and bt traffic - */ -static void ath_btcoex_no_stomp_timer(void *arg) -{ - struct ath_softc *sc = (struct ath_softc *)arg; - struct ath_hw *ah = sc->sc_ah; - struct ath_btcoex *btcoex = &sc->btcoex; - - ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, - "no stomp timer running \n"); - - spin_lock_bh(&btcoex->btcoex_lock); - - if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW) - ath9k_btcoex_bt_stomp(sc, ATH_BTCOEX_STOMP_NONE); - else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) - ath9k_btcoex_bt_stomp(sc, ATH_BTCOEX_STOMP_LOW); - - spin_unlock_bh(&btcoex->btcoex_lock); -} - -static int ath_init_btcoex_timer(struct ath_softc *sc) -{ - struct ath_btcoex *btcoex = &sc->btcoex; - - btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000; - btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * - btcoex->btcoex_period / 100; - - setup_timer(&btcoex->period_timer, ath_btcoex_period_timer, - (unsigned long) sc); - - spin_lock_init(&btcoex->btcoex_lock); - - btcoex->no_stomp_timer = ath_gen_timer_alloc(sc->sc_ah, - ath_btcoex_no_stomp_timer, - ath_btcoex_no_stomp_timer, - (void *) sc, AR_FIRST_NDP_TIMER); - - if (!btcoex->no_stomp_timer) - return -ENOMEM; - - return 0; -} - -/* - * Read and write, they both share the same lock. We do this to serialize - * reads and writes on Atheros 802.11n PCI devices only. This is required - * as the FIFO on these devices can only accept sanely 2 requests. After - * that the device goes bananas. Serializing the reads/writes prevents this - * from happening. - */ - -static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset) -{ - struct ath_hw *ah = (struct ath_hw *) hw_priv; - struct ath_common *common = ath9k_hw_common(ah); - struct ath_softc *sc = (struct ath_softc *) common->priv; - - if (ah->config.serialize_regmode == SER_REG_MODE_ON) { - unsigned long flags; - spin_lock_irqsave(&sc->sc_serial_rw, flags); - iowrite32(val, sc->mem + reg_offset); - spin_unlock_irqrestore(&sc->sc_serial_rw, flags); - } else - iowrite32(val, sc->mem + reg_offset); -} - -static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset) -{ - struct ath_hw *ah = (struct ath_hw *) hw_priv; - struct ath_common *common = ath9k_hw_common(ah); - struct ath_softc *sc = (struct ath_softc *) common->priv; - u32 val; - - if (ah->config.serialize_regmode == SER_REG_MODE_ON) { - unsigned long flags; - spin_lock_irqsave(&sc->sc_serial_rw, flags); - val = ioread32(sc->mem + reg_offset); - spin_unlock_irqrestore(&sc->sc_serial_rw, flags); - } else - val = ioread32(sc->mem + reg_offset); - return val; -} - -static const struct ath_ops ath9k_common_ops = { - .read = ath9k_ioread32, - .write = ath9k_iowrite32, -}; - -/* - * Initialize and fill ath_softc, ath_sofct is the - * "Software Carrier" struct. Historically it has existed - * to allow the separation between hardware specific - * variables (now in ath_hw) and driver specific variables. - */ -static int ath_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 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->ani_lock); - 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; - } - - /* Get the hardware key cache size. */ - common->keymax = 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", - ATH_KEYMAX, common->keymax); - common->keymax = ATH_KEYMAX; - } - - /* - * Reset the key cache since some parts do not - * reset the contents on initial power up. - */ - for (i = 0; i < common->keymax; i++) - ath9k_hw_keyreset(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, - ATH9K_CIPHER_TKIP, NULL)) { - /* - * Whether we should enable h/w TKIP MIC. - * XXX: if we don't support WME TKIP MIC, then we wouldn't - * 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); - } - - /* - * Check whether the separate key cache entries - * are required to handle both tx+rx MIC keys. - * With split mic keys the number of stations is limited - * to 27 otherwise 59. - */ - if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, - ATH9K_CIPHER_TKIP, NULL) - && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, - ATH9K_CIPHER_MIC, NULL) - && ath9k_hw_getcapability(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); - - 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; - } - - common->tx_chainmask = ah->caps.tx_chainmask; - common->rx_chainmask = ah->caps.rx_chainmask; - - ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); - sc->rx.defant = ath9k_hw_getdefantenna(ah); - - if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) - memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN); - - 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; - } - - /* setup channels and rates */ - - 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; - sc->sbands[IEEE80211_BAND_2GHZ].n_channels = - ARRAY_SIZE(ath9k_2ghz_chantable); - sc->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates; - sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates = - ARRAY_SIZE(ath9k_legacy_rates); - } - - if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { - sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; - sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; - sc->sbands[IEEE80211_BAND_5GHZ].n_channels = - ARRAY_SIZE(ath9k_5ghz_chantable); - sc->sbands[IEEE80211_BAND_5GHZ].bitrates = - ath9k_legacy_rates + 4; - 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; - } - - return 0; -bad2: - /* 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]); - -bad_free_hw: - ath9k_uninit_hw(sc); - return r; -} - -void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) -{ - hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | - IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | - IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_AMPDU_AGGREGATION | - IEEE80211_HW_SUPPORTS_PS | - IEEE80211_HW_PS_NULLFUNC_STACK | - IEEE80211_HW_SPECTRUM_MGMT; - - if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) - hw->flags |= IEEE80211_HW_MFP_CAPABLE; - - hw->wiphy->interface_modes = - BIT(NL80211_IFTYPE_AP) | - BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_ADHOC) | - BIT(NL80211_IFTYPE_MESH_POINT); - - hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; - - hw->queues = 4; - hw->max_rates = 4; - hw->channel_change_time = 5000; - hw->max_listen_interval = 10; - /* Hardware supports 10 but we use 4 */ - hw->max_rate_tries = 4; - hw->sta_data_size = sizeof(struct ath_node); - hw->vif_data_size = sizeof(struct ath_vif); - - hw->rate_control_algorithm = "ath9k_rate_control"; - - if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) - hw->wiphy->bands[IEEE80211_BAND_2GHZ] = - &sc->sbands[IEEE80211_BAND_2GHZ]; - if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) - hw->wiphy->bands[IEEE80211_BAND_5GHZ] = - &sc->sbands[IEEE80211_BAND_5GHZ]; -} - -/* Device driver core initialization */ -int ath_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; - struct ath_regulatory *reg; - - dev_dbg(sc->dev, "Attach ATH hw\n"); - - error = ath_init_softc(devid, sc, subsysid, bus_ops); - if (error != 0) - return error; - - ah = sc->sc_ah; - common = ath9k_hw_common(ah); - - /* get mac address from hardware and set in mac80211 */ - - SET_IEEE80211_PERM_ADDR(hw, common->macaddr); - - ath_set_hw_capab(sc, hw); - - error = ath_regd_init(&common->regulatory, sc->hw->wiphy, - ath9k_reg_notifier); - if (error) - return error; - - 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 */ - error = ath_tx_init(sc, ATH_TXBUF); - if (error != 0) - goto error_attach; - - error = ath_rx_init(sc, ATH_RXBUF); - if (error != 0) - goto error_attach; - - 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); - - return error; -} - int ath_reset(struct ath_softc *sc, bool retry_tx) { struct ath_hw *ah = sc->sc_ah; @@ -1976,6 +947,8 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) /* Stop ANI */ del_timer_sync(&common->ani.timer); + ieee80211_stop_queues(hw); + ath9k_hw_set_interrupts(ah, 0); ath_drain_all_txq(sc, retry_tx); ath_stoprecv(sc); @@ -2017,131 +990,14 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) } } + ieee80211_wake_queues(hw); + /* Start ANI */ ath_start_ani(common); return r; } -/* - * This function will allocate both the DMA descriptor structure, and the - * buffers it contains. These are used to contain the descriptors used - * by the system. -*/ -int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, - struct list_head *head, const char *name, - int nbuf, int ndesc) -{ -#define DS2PHYS(_dd, _ds) \ - ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) -#define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) -#define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) - struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ath_desc *ds; - struct ath_buf *bf; - int i, bsize, error; - - ath_print(common, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", - name, nbuf, ndesc); - - INIT_LIST_HEAD(head); - /* ath_desc must be a multiple of DWORDs */ - if ((sizeof(struct ath_desc) % 4) != 0) { - ath_print(common, ATH_DBG_FATAL, - "ath_desc not DWORD aligned\n"); - BUG_ON((sizeof(struct ath_desc) % 4) != 0); - error = -ENOMEM; - goto fail; - } - - dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; - - /* - * Need additional DMA memory because we can't use - * descriptors that cross the 4K page boundary. Assume - * one skipped descriptor per 4K page. - */ - if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { - u32 ndesc_skipped = - ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); - u32 dma_len; - - while (ndesc_skipped) { - dma_len = ndesc_skipped * sizeof(struct ath_desc); - dd->dd_desc_len += dma_len; - - ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); - }; - } - - /* allocate descriptors */ - dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, - &dd->dd_desc_paddr, GFP_KERNEL); - if (dd->dd_desc == NULL) { - error = -ENOMEM; - goto fail; - } - ds = dd->dd_desc; - ath_print(common, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", - name, ds, (u32) dd->dd_desc_len, - ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); - - /* allocate buffers */ - bsize = sizeof(struct ath_buf) * nbuf; - bf = kzalloc(bsize, GFP_KERNEL); - if (bf == NULL) { - error = -ENOMEM; - goto fail2; - } - dd->dd_bufptr = bf; - - for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { - bf->bf_desc = ds; - bf->bf_daddr = DS2PHYS(dd, ds); - - if (!(sc->sc_ah->caps.hw_caps & - ATH9K_HW_CAP_4KB_SPLITTRANS)) { - /* - * Skip descriptor addresses which can cause 4KB - * boundary crossing (addr + length) with a 32 dword - * descriptor fetch. - */ - while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { - BUG_ON((caddr_t) bf->bf_desc >= - ((caddr_t) dd->dd_desc + - dd->dd_desc_len)); - - ds += ndesc; - bf->bf_desc = ds; - bf->bf_daddr = DS2PHYS(dd, ds); - } - } - list_add_tail(&bf->list, head); - } - return 0; -fail2: - dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, - dd->dd_desc_paddr); -fail: - memset(dd, 0, sizeof(*dd)); - return error; -#undef ATH_DESC_4KB_BOUND_CHECK -#undef ATH_DESC_4KB_BOUND_NUM_SKIPPED -#undef DS2PHYS -} - -void ath_descdma_cleanup(struct ath_softc *sc, - struct ath_descdma *dd, - struct list_head *head) -{ - dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, - dd->dd_desc_paddr); - - INIT_LIST_HEAD(head); - kfree(dd->dd_bufptr); - memset(dd, 0, sizeof(*dd)); -} - int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) { int qnum; @@ -2220,28 +1076,6 @@ void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, /* mac80211 callbacks */ /**********************/ -/* - * (Re)start btcoex timers - */ -static void ath9k_btcoex_timer_resume(struct ath_softc *sc) -{ - struct ath_btcoex *btcoex = &sc->btcoex; - struct ath_hw *ah = sc->sc_ah; - - ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, - "Starting btcoex timers"); - - /* make sure duty cycle timer is also stopped when resuming */ - if (btcoex->hw_timer_enabled) - ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer); - - btcoex->bt_priority_cnt = 0; - btcoex->bt_priority_time = jiffies; - sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED; - - mod_timer(&btcoex->period_timer, jiffies); -} - static int ath9k_start(struct ieee80211_hw *hw) { struct ath_wiphy *aphy = hw->priv; @@ -2411,11 +1245,11 @@ static int ath9k_tx(struct ieee80211_hw *hw, if (ieee80211_is_pspoll(hdr->frame_control)) { ath_print(common, ATH_DBG_PS, "Sending PS-Poll to pick a buffered frame\n"); - sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA; + sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA; } else { ath_print(common, ATH_DBG_PS, "Wake up to complete TX\n"); - sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK; + sc->ps_flags |= PS_WAIT_FOR_TX_ACK; } /* * The actual restore operation will happen only after @@ -2468,22 +1302,6 @@ exit: return 0; } -/* - * Pause btcoex timer and bt duty cycle timer - */ -static void ath9k_btcoex_timer_pause(struct ath_softc *sc) -{ - struct ath_btcoex *btcoex = &sc->btcoex; - struct ath_hw *ah = sc->sc_ah; - - del_timer_sync(&btcoex->period_timer); - - if (btcoex->hw_timer_enabled) - ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); - - btcoex->hw_timer_enabled = false; -} - static void ath9k_stop(struct ieee80211_hw *hw) { struct ath_wiphy *aphy = hw->priv; @@ -2550,12 +1368,12 @@ static void ath9k_stop(struct ieee80211_hw *hw) } static int ath9k_add_interface(struct ieee80211_hw *hw, - struct ieee80211_if_init_conf *conf) + struct ieee80211_vif *vif) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ath_vif *avp = (void *)conf->vif->drv_priv; + struct ath_vif *avp = (void *)vif->drv_priv; enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; int ret = 0; @@ -2567,7 +1385,7 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, goto out; } - switch (conf->type) { + switch (vif->type) { case NL80211_IFTYPE_STATION: ic_opmode = NL80211_IFTYPE_STATION; break; @@ -2578,11 +1396,11 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, ret = -ENOBUFS; goto out; } - ic_opmode = conf->type; + ic_opmode = vif->type; break; default: ath_print(common, ATH_DBG_FATAL, - "Interface type %d not yet supported\n", conf->type); + "Interface type %d not yet supported\n", vif->type); ret = -EOPNOTSUPP; goto out; } @@ -2614,18 +1432,18 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, * Enable MIB interrupts when there are hardware phy counters. * Note we only do this (at the moment) for station mode. */ - if ((conf->type == NL80211_IFTYPE_STATION) || - (conf->type == NL80211_IFTYPE_ADHOC) || - (conf->type == NL80211_IFTYPE_MESH_POINT)) { + if ((vif->type == NL80211_IFTYPE_STATION) || + (vif->type == NL80211_IFTYPE_ADHOC) || + (vif->type == NL80211_IFTYPE_MESH_POINT)) { sc->imask |= ATH9K_INT_MIB; sc->imask |= ATH9K_INT_TSFOOR; } ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); - if (conf->type == NL80211_IFTYPE_AP || - conf->type == NL80211_IFTYPE_ADHOC || - conf->type == NL80211_IFTYPE_MONITOR) + if (vif->type == NL80211_IFTYPE_AP || + vif->type == NL80211_IFTYPE_ADHOC || + vif->type == NL80211_IFTYPE_MONITOR) ath_start_ani(common); out: @@ -2634,12 +1452,12 @@ out: } static void ath9k_remove_interface(struct ieee80211_hw *hw, - struct ieee80211_if_init_conf *conf) + struct ieee80211_vif *vif) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ath_vif *avp = (void *)conf->vif->drv_priv; + struct ath_vif *avp = (void *)vif->drv_priv; int i; ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); @@ -2662,7 +1480,7 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, sc->sc_flags &= ~SC_OP_BEACONS; for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { - if (sc->beacon.bslot[i] == conf->vif) { + if (sc->beacon.bslot[i] == vif) { printk(KERN_DEBUG "%s: vif had allocated beacon " "slot\n", __func__); sc->beacon.bslot[i] = NULL; @@ -2675,6 +1493,19 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, mutex_unlock(&sc->mutex); } +void ath9k_enable_ps(struct ath_softc *sc) +{ + sc->ps_enabled = true; + if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { + if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { + sc->imask |= ATH9K_INT_TIM_TIMER; + ath9k_hw_set_interrupts(sc->sc_ah, + sc->imask); + } + } + ath9k_hw_setrxabort(sc->sc_ah, 1); +} + static int ath9k_config(struct ieee80211_hw *hw, u32 changed) { struct ath_wiphy *aphy = hw->priv; @@ -2713,6 +1544,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) spin_unlock_bh(&sc->wiphy_lock); if (enable_radio) { + sc->ps_idle = false; ath_radio_enable(sc, hw); ath_print(common, ATH_DBG_CONFIG, "not-idle: enabling radio\n"); @@ -2727,36 +1559,27 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) */ if (changed & IEEE80211_CONF_CHANGE_PS) { if (conf->flags & IEEE80211_CONF_PS) { - sc->sc_flags |= SC_OP_PS_ENABLED; - if (!(ah->caps.hw_caps & - ATH9K_HW_CAP_AUTOSLEEP)) { - if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { - sc->imask |= ATH9K_INT_TIM_TIMER; - ath9k_hw_set_interrupts(sc->sc_ah, - sc->imask); - } - } + sc->ps_flags |= PS_ENABLED; /* * At this point we know hardware has received an ACK * of a previously sent null data frame. */ - if ((sc->sc_flags & SC_OP_NULLFUNC_COMPLETED)) { - sc->sc_flags &= ~SC_OP_NULLFUNC_COMPLETED; - sc->ps_enabled = true; - ath9k_hw_setrxabort(sc->sc_ah, 1); + if ((sc->ps_flags & PS_NULLFUNC_COMPLETED)) { + sc->ps_flags &= ~PS_NULLFUNC_COMPLETED; + ath9k_enable_ps(sc); } } else { sc->ps_enabled = false; - sc->sc_flags &= ~(SC_OP_PS_ENABLED | - SC_OP_NULLFUNC_COMPLETED); + sc->ps_flags &= ~(PS_ENABLED | + PS_NULLFUNC_COMPLETED); ath9k_setpower(sc, ATH9K_PM_AWAKE); if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { ath9k_hw_setrxabort(sc->sc_ah, 0); - sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | - SC_OP_WAIT_FOR_CAB | - SC_OP_WAIT_FOR_PSPOLL_DATA | - SC_OP_WAIT_FOR_TX_ACK); + sc->ps_flags &= ~(PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA | + PS_WAIT_FOR_TX_ACK); if (sc->imask & ATH9K_INT_TIM_TIMER) { sc->imask &= ~ATH9K_INT_TIM_TIMER; ath9k_hw_set_interrupts(sc->sc_ah, @@ -2766,6 +1589,14 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) } } + if (changed & IEEE80211_CONF_CHANGE_MONITOR) { + if (conf->flags & IEEE80211_CONF_MONITOR) { + ath_print(common, ATH_DBG_CONFIG, + "HW opmode set to Monitor mode\n"); + sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; + } + } + if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { struct ieee80211_channel *curchan = hw->conf.channel; int pos = curchan->hw_value; @@ -2801,8 +1632,10 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) } skip_chan_change: - if (changed & IEEE80211_CONF_CHANGE_POWER) + if (changed & IEEE80211_CONF_CHANGE_POWER) { sc->config.txpowlimit = 2 * conf->power_level; + ath_update_txpow(sc); + } spin_lock_bh(&sc->wiphy_lock); disable_radio = ath9k_all_wiphys_idle(sc); @@ -2810,6 +1643,7 @@ skip_chan_change: if (disable_radio) { ath_print(common, ATH_DBG_CONFIG, "idle: disabling radio\n"); + sc->ps_idle = true; ath_radio_disable(sc, hw); } @@ -2850,24 +1684,28 @@ static void ath9k_configure_filter(struct ieee80211_hw *hw, "Set HW RX filter: 0x%x\n", rfilt); } -static void ath9k_sta_notify(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - enum sta_notify_cmd cmd, - struct ieee80211_sta *sta) +static int ath9k_sta_add(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; - switch (cmd) { - case STA_NOTIFY_ADD: - ath_node_attach(sc, sta); - break; - case STA_NOTIFY_REMOVE: - ath_node_detach(sc, sta); - break; - default: - break; - } + ath_node_attach(sc, sta); + + return 0; +} + +static int ath9k_sta_remove(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + + ath_node_detach(sc, sta); + + return 0; } static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, @@ -2966,6 +1804,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ath_vif *avp = (void *)vif->drv_priv; + int slottime; int error; mutex_lock(&sc->mutex); @@ -3001,6 +1840,25 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, ath_beacon_config(sc, vif); } + if (changed & BSS_CHANGED_ERP_SLOT) { + if (bss_conf->use_short_slot) + slottime = 9; + else + slottime = 20; + if (vif->type == NL80211_IFTYPE_AP) { + /* + * Defer update, so that connected stations can adjust + * their settings at the same time. + * See beacon.c for more details + */ + sc->beacon.slottime = slottime; + sc->beacon.updateslot = UPDATE; + } else { + ah->slottime = slottime; + ath9k_hw_init_global_settings(ah); + } + } + /* Disable transmission of beacons */ if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); @@ -3133,6 +1991,7 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); mutex_lock(&sc->mutex); if (ath9k_wiphy_scanning(sc)) { @@ -3148,10 +2007,9 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw) aphy->state = ATH_WIPHY_SCAN; ath9k_wiphy_pause_all_forced(sc, aphy); - - spin_lock_bh(&sc->ani_lock); sc->sc_flags |= SC_OP_SCANNING; - spin_unlock_bh(&sc->ani_lock); + del_timer_sync(&common->ani.timer); + cancel_delayed_work_sync(&sc->tx_complete_work); mutex_unlock(&sc->mutex); } @@ -3159,17 +2017,30 @@ static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); mutex_lock(&sc->mutex); - spin_lock_bh(&sc->ani_lock); aphy->state = ATH_WIPHY_ACTIVE; sc->sc_flags &= ~SC_OP_SCANNING; sc->sc_flags |= SC_OP_FULL_RESET; - spin_unlock_bh(&sc->ani_lock); + ath_start_ani(common); + ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); ath_beacon_config(sc, NULL); mutex_unlock(&sc->mutex); } +static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + struct ath_hw *ah = sc->sc_ah; + + mutex_lock(&sc->mutex); + ah->coverage_class = coverage_class; + ath9k_hw_init_global_settings(ah); + mutex_unlock(&sc->mutex); +} + struct ieee80211_ops ath9k_ops = { .tx = ath9k_tx, .start = ath9k_start, @@ -3178,7 +2049,8 @@ struct ieee80211_ops ath9k_ops = { .remove_interface = ath9k_remove_interface, .config = ath9k_config, .configure_filter = ath9k_configure_filter, - .sta_notify = ath9k_sta_notify, + .sta_add = ath9k_sta_add, + .sta_remove = ath9k_sta_remove, .conf_tx = ath9k_conf_tx, .bss_info_changed = ath9k_bss_info_changed, .set_key = ath9k_set_key, @@ -3189,64 +2061,5 @@ struct ieee80211_ops ath9k_ops = { .sw_scan_start = ath9k_sw_scan_start, .sw_scan_complete = ath9k_sw_scan_complete, .rfkill_poll = ath9k_rfkill_poll_state, + .set_coverage_class = ath9k_set_coverage_class, }; - -static int __init ath9k_init(void) -{ - int error; - - /* Register rate control algorithm */ - error = ath_rate_control_register(); - if (error != 0) { - printk(KERN_ERR - "ath9k: Unable to register rate control " - "algorithm: %d\n", - error); - goto err_out; - } - - error = ath9k_debug_create_root(); - if (error) { - printk(KERN_ERR - "ath9k: Unable to create debugfs root: %d\n", - error); - goto err_rate_unregister; - } - - error = ath_pci_init(); - if (error < 0) { - printk(KERN_ERR - "ath9k: No PCI devices found, driver not installed.\n"); - error = -ENODEV; - goto err_remove_root; - } - - error = ath_ahb_init(); - if (error < 0) { - error = -ENODEV; - goto err_pci_exit; - } - - return 0; - - err_pci_exit: - ath_pci_exit(); - - err_remove_root: - ath9k_debug_remove_root(); - err_rate_unregister: - ath_rate_control_unregister(); - err_out: - return error; -} -module_init(ath9k_init); - -static void __exit ath9k_exit(void) -{ - ath_ahb_exit(); - ath_pci_exit(); - ath9k_debug_remove_root(); - ath_rate_control_unregister(); - printk(KERN_INFO "%s: Driver unloaded\n", dev_info); -} -module_exit(ath9k_exit); diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c index f7af5ea54753..9441c6718a30 100644 --- a/drivers/net/wireless/ath/ath9k/pci.c +++ b/drivers/net/wireless/ath/ath9k/pci.c @@ -18,13 +18,14 @@ #include <linux/pci.h> #include "ath9k.h" -static struct pci_device_id ath_pci_id_table[] __devinitdata = { +static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = { { 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 */ { PCI_VDEVICE(ATHEROS, 0x002B) }, /* PCI-E */ + { PCI_VDEVICE(ATHEROS, 0x002C) }, /* PCI-E 802.11n bonded out */ { PCI_VDEVICE(ATHEROS, 0x002D) }, /* PCI */ { PCI_VDEVICE(ATHEROS, 0x002E) }, /* PCI-E */ { 0 } @@ -49,16 +50,6 @@ static void ath_pci_read_cachesize(struct ath_common *common, int *csz) *csz = DEFAULT_CACHELINE >> 2; /* Use the default size */ } -static void ath_pci_cleanup(struct ath_common *common) -{ - struct ath_softc *sc = (struct ath_softc *) common->priv; - struct pci_dev *pdev = to_pci_dev(sc->dev); - - pci_iounmap(pdev, sc->mem); - pci_disable_device(pdev); - pci_release_region(pdev, 0); -} - static bool ath_pci_eeprom_read(struct ath_common *common, u32 off, u16 *data) { struct ath_hw *ah = (struct ath_hw *) common->ah; @@ -98,7 +89,6 @@ static void ath_pci_bt_coex_prep(struct ath_common *common) static const struct ath_bus_ops ath_pci_bus_ops = { .read_cachesize = ath_pci_read_cachesize, - .cleanup = ath_pci_cleanup, .eeprom_read = ath_pci_eeprom_read, .bt_coex_prep = ath_pci_bt_coex_prep, }; @@ -113,25 +103,22 @@ 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 +158,22 @@ 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 +188,25 @@ 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 */ + /* Will be cleared in ath9k_start() */ + sc->sc_flags |= SC_OP_INVALID; 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 +214,18 @@ 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 +235,15 @@ 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; + void __iomem *mem = sc->mem; + + ath9k_deinit_device(sc); + free_irq(sc->irq, sc); + ieee80211_free_hw(sc->hw); - ath_cleanup(sc); + pci_iounmap(pdev, mem); + pci_disable_device(pdev); + pci_release_region(pdev, 0); } #ifdef CONFIG_PM diff --git a/drivers/net/wireless/ath/ath9k/phy.h b/drivers/net/wireless/ath/ath9k/phy.h index 31de27dc0c4a..0999a495fd46 100644 --- a/drivers/net/wireless/ath/ath9k/phy.h +++ b/drivers/net/wireless/ath/ath9k/phy.h @@ -384,6 +384,9 @@ bool ath9k_hw_set_rf_regs(struct ath_hw *ah, #define AR_PHY_HEAVY_CLIP_ENABLE 0x99E0 +#define AR_PHY_HEAVY_CLIP_FACTOR_RIFS 0x99EC +#define AR_PHY_RIFS_INIT_DELAY 0x03ff0000 + #define AR_PHY_M_SLEEP 0x99f0 #define AR_PHY_REFCLKDLY 0x99f4 #define AR_PHY_REFCLKPD 0x99f8 diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 70fdb9d8db82..ac34a055c713 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -668,7 +668,7 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, struct ieee80211_tx_rate *rates = tx_info->control.rates; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; __le16 fc = hdr->frame_control; - u8 try_per_rate, i = 0, rix, nrix; + u8 try_per_rate, i = 0, rix; int is_probe = 0; if (rate_control_send_low(sta, priv_sta, txrc)) @@ -678,48 +678,47 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, * For Multi Rate Retry we use a different number of * retry attempt counts. This ends up looking like this: * - * MRR[0] = 2 - * MRR[1] = 2 - * MRR[2] = 2 - * MRR[3] = 4 + * MRR[0] = 4 + * MRR[1] = 4 + * MRR[2] = 4 + * MRR[3] = 8 * */ - try_per_rate = sc->hw->max_rate_tries; + try_per_rate = 4; rate_table = sc->cur_rate_table; rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table, &is_probe); - nrix = rix; if (is_probe) { /* set one try for probe rates. For the * probes don't enable rts */ ath_rc_rate_set_series(rate_table, &rates[i++], txrc, - 1, nrix, 0); + 1, rix, 0); /* Get the next tried/allowed rate. No RTS for the next series * after the probe rate */ - ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &nrix); + ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix); ath_rc_rate_set_series(rate_table, &rates[i++], txrc, - try_per_rate, nrix, 0); + try_per_rate, rix, 0); tx_info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE; } else { /* Set the choosen rate. No RTS for first series entry. */ ath_rc_rate_set_series(rate_table, &rates[i++], txrc, - try_per_rate, nrix, 0); + try_per_rate, rix, 0); } /* Fill in the other rates for multirate retry */ for ( ; i < 4; i++) { /* Use twice the number of tries for the last MRR segment. */ if (i + 1 == 4) - try_per_rate = 4; + try_per_rate = 8; - ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &nrix); + ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix); /* All other rates in the series have RTS enabled */ ath_rc_rate_set_series(rate_table, &rates[i], txrc, - try_per_rate, nrix, 1); + try_per_rate, rix, 1); } /* diff --git a/drivers/net/wireless/ath/ath9k/rc.h b/drivers/net/wireless/ath/ath9k/rc.h index 9eb96f506998..4f6d6fd442f4 100644 --- a/drivers/net/wireless/ath/ath9k/rc.h +++ b/drivers/net/wireless/ath/ath9k/rc.h @@ -57,6 +57,10 @@ enum { || (_phy == WLAN_RC_PHY_HT_40_DS) \ || (_phy == WLAN_RC_PHY_HT_20_DS_HGI) \ || (_phy == WLAN_RC_PHY_HT_40_DS_HGI)) +#define WLAN_RC_PHY_20(_phy) ((_phy == WLAN_RC_PHY_HT_20_SS) \ + || (_phy == WLAN_RC_PHY_HT_20_DS) \ + || (_phy == WLAN_RC_PHY_HT_20_SS_HGI) \ + || (_phy == WLAN_RC_PHY_HT_20_DS_HGI)) #define WLAN_RC_PHY_40(_phy) ((_phy == WLAN_RC_PHY_HT_40_SS) \ || (_phy == WLAN_RC_PHY_HT_40_DS) \ || (_phy == WLAN_RC_PHY_HT_40_SS_HGI) \ diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 477365e5ae69..1ca42e5148c8 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -364,10 +364,10 @@ static void ath_rx_ps_beacon(struct ath_softc *sc, struct sk_buff *skb) if (memcmp(common->curbssid, mgmt->bssid, ETH_ALEN) != 0) return; /* not from our current AP */ - sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON; + sc->ps_flags &= ~PS_WAIT_FOR_BEACON; - if (sc->sc_flags & SC_OP_BEACON_SYNC) { - sc->sc_flags &= ~SC_OP_BEACON_SYNC; + if (sc->ps_flags & PS_BEACON_SYNC) { + sc->ps_flags &= ~PS_BEACON_SYNC; ath_print(common, ATH_DBG_PS, "Reconfigure Beacon timers based on " "timestamp from the AP\n"); @@ -384,17 +384,17 @@ static void ath_rx_ps_beacon(struct ath_softc *sc, struct sk_buff *skb) */ ath_print(common, ATH_DBG_PS, "Received DTIM beacon indicating " "buffered broadcast/multicast frame(s)\n"); - sc->sc_flags |= SC_OP_WAIT_FOR_CAB | SC_OP_WAIT_FOR_BEACON; + sc->ps_flags |= PS_WAIT_FOR_CAB | PS_WAIT_FOR_BEACON; return; } - if (sc->sc_flags & SC_OP_WAIT_FOR_CAB) { + if (sc->ps_flags & PS_WAIT_FOR_CAB) { /* * This can happen if a broadcast frame is dropped or the AP * fails to send a frame indicating that all CAB frames have * been delivered. */ - sc->sc_flags &= ~SC_OP_WAIT_FOR_CAB; + sc->ps_flags &= ~PS_WAIT_FOR_CAB; ath_print(common, ATH_DBG_PS, "PS wait for CAB frames timed out\n"); } @@ -408,10 +408,10 @@ static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb) hdr = (struct ieee80211_hdr *)skb->data; /* Process Beacon and CAB receive in PS state */ - if ((sc->sc_flags & SC_OP_WAIT_FOR_BEACON) && + if ((sc->ps_flags & PS_WAIT_FOR_BEACON) && ieee80211_is_beacon(hdr->frame_control)) ath_rx_ps_beacon(sc, skb); - else if ((sc->sc_flags & SC_OP_WAIT_FOR_CAB) && + else if ((sc->ps_flags & PS_WAIT_FOR_CAB) && (ieee80211_is_data(hdr->frame_control) || ieee80211_is_action(hdr->frame_control)) && is_multicast_ether_addr(hdr->addr1) && @@ -420,20 +420,20 @@ static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb) * No more broadcast/multicast frames to be received at this * point. */ - sc->sc_flags &= ~SC_OP_WAIT_FOR_CAB; + sc->ps_flags &= ~PS_WAIT_FOR_CAB; ath_print(common, ATH_DBG_PS, "All PS CAB frames received, back to sleep\n"); - } else if ((sc->sc_flags & SC_OP_WAIT_FOR_PSPOLL_DATA) && + } else if ((sc->ps_flags & PS_WAIT_FOR_PSPOLL_DATA) && !is_multicast_ether_addr(hdr->addr1) && !ieee80211_has_morefrags(hdr->frame_control)) { - sc->sc_flags &= ~SC_OP_WAIT_FOR_PSPOLL_DATA; + sc->ps_flags &= ~PS_WAIT_FOR_PSPOLL_DATA; ath_print(common, ATH_DBG_PS, "Going back to sleep after having received " - "PS-Poll data (0x%x)\n", - sc->sc_flags & (SC_OP_WAIT_FOR_BEACON | - SC_OP_WAIT_FOR_CAB | - SC_OP_WAIT_FOR_PSPOLL_DATA | - SC_OP_WAIT_FOR_TX_ACK)); + "PS-Poll data (0x%lx)\n", + sc->ps_flags & (PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA | + PS_WAIT_FOR_TX_ACK)); } } @@ -571,6 +571,8 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) hw = ath_get_virt_hw(sc, hdr); rx_stats = &ds->ds_rxstat; + ath_debug_stat_rx(sc, bf); + /* * If we're asked to flush receive queue, directly * chain it back at the queue without processing it. @@ -631,9 +633,9 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) sc->rx.rxotherant = 0; } - if (unlikely(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON | - SC_OP_WAIT_FOR_CAB | - SC_OP_WAIT_FOR_PSPOLL_DATA))) + if (unlikely(sc->ps_flags & (PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA))) ath_rx_ps(sc, skb); ath_rx_send_to_mac80211(hw, sc, skb, rxs); diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 8e653fb937a1..72cfa8ebd9ae 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -1547,9 +1547,9 @@ enum { #define AR_BT_COEX_WEIGHT 0x8174 #define AR_BT_COEX_WGHT 0xff55 -#define AR_STOMP_ALL_WLAN_WGHT 0xffcc -#define AR_STOMP_LOW_WLAN_WGHT 0xaaa8 -#define AR_STOMP_NONE_WLAN_WGHT 0xaa00 +#define AR_STOMP_ALL_WLAN_WGHT 0xfcfc +#define AR_STOMP_LOW_WLAN_WGHT 0xa8a8 +#define AR_STOMP_NONE_WLAN_WGHT 0x0000 #define AR_BTCOEX_BT_WGHT 0x0000ffff #define AR_BTCOEX_BT_WGHT_S 0 #define AR_BTCOEX_WL_WGHT 0xffff0000 diff --git a/drivers/net/wireless/ath/ath9k/virtual.c b/drivers/net/wireless/ath/ath9k/virtual.c index cd26caaf44e7..a43fbf84dab9 100644 --- a/drivers/net/wireless/ath/ath9k/virtual.c +++ b/drivers/net/wireless/ath/ath9k/virtual.c @@ -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); diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 29bf33692f71..47294f90bbe5 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1498,26 +1498,6 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) if (sc->sc_flags & SC_OP_PREAMBLE_SHORT) ctsrate |= rate->hw_value_short; - /* - * ATH9K_TXDESC_RTSENA and ATH9K_TXDESC_CTSENA are mutually exclusive. - * Check the first rate in the series to decide whether RTS/CTS - * or CTS-to-self has to be used. - */ - if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) - flags = ATH9K_TXDESC_CTSENA; - else if (rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) - flags = ATH9K_TXDESC_RTSENA; - - /* FIXME: Handle aggregation protection */ - if (sc->config.ath_aggr_prot && - (!bf_isaggr(bf) || (bf_isaggr(bf) && bf->bf_al < 8192))) { - flags = ATH9K_TXDESC_RTSENA; - } - - /* For AR5416 - RTS cannot be followed by a frame larger than 8K */ - if (bf_isaggr(bf) && (bf->bf_al > sc->sc_ah->caps.rts_aggr_limit)) - flags &= ~(ATH9K_TXDESC_RTSENA); - for (i = 0; i < 4; i++) { bool is_40, is_sgi, is_sp; int phy; @@ -1529,8 +1509,15 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) series[i].Tries = rates[i].count; series[i].ChSel = common->tx_chainmask; - if (rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) + if ((sc->config.ath_aggr_prot && bf_isaggr(bf)) || + (rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS)) { series[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS; + flags |= ATH9K_TXDESC_RTSENA; + } else if (rates[i].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + series[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS; + flags |= ATH9K_TXDESC_CTSENA; + } + if (rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH) series[i].RateFlags |= ATH9K_RATESERIES_2040; if (rates[i].flags & IEEE80211_TX_RC_SHORT_GI) @@ -1568,6 +1555,14 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) phy, rate->bitrate * 100, bf->bf_frmlen, rix, is_sp); } + /* For AR5416 - RTS cannot be followed by a frame larger than 8K */ + if (bf_isaggr(bf) && (bf->bf_al > sc->sc_ah->caps.rts_aggr_limit)) + flags &= ~ATH9K_TXDESC_RTSENA; + + /* ATH9K_TXDESC_RTSENA and ATH9K_TXDESC_CTSENA are mutually exclusive. */ + if (flags & ATH9K_TXDESC_RTSENA) + flags &= ~ATH9K_TXDESC_CTSENA; + /* set dur_update_en for l-sig computation except for PS-Poll frames */ ath9k_hw_set11n_ratescenario(sc->sc_ah, bf->bf_desc, bf->bf_lastbf->bf_desc, @@ -1648,7 +1643,7 @@ static int ath_tx_setup_buffer(struct ieee80211_hw *hw, struct ath_buf *bf, /* tag if this is a nullfunc frame to enable PS when AP acks it */ if (ieee80211_is_nullfunc(fc) && ieee80211_has_pm(fc)) { bf->bf_isnullfunc = true; - sc->sc_flags &= ~SC_OP_NULLFUNC_COMPLETED; + sc->ps_flags &= ~PS_NULLFUNC_COMPLETED; } else bf->bf_isnullfunc = false; @@ -1858,15 +1853,15 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, skb_pull(skb, padsize); } - if (sc->sc_flags & SC_OP_WAIT_FOR_TX_ACK) { - sc->sc_flags &= ~SC_OP_WAIT_FOR_TX_ACK; + if (sc->ps_flags & PS_WAIT_FOR_TX_ACK) { + sc->ps_flags &= ~PS_WAIT_FOR_TX_ACK; ath_print(common, ATH_DBG_PS, "Going back to sleep after having " - "received TX status (0x%x)\n", - sc->sc_flags & (SC_OP_WAIT_FOR_BEACON | - SC_OP_WAIT_FOR_CAB | - SC_OP_WAIT_FOR_PSPOLL_DATA | - SC_OP_WAIT_FOR_TX_ACK)); + "received TX status (0x%lx)\n", + sc->ps_flags & (PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA | + PS_WAIT_FOR_TX_ACK)); } if (unlikely(tx_info->pad[0] & ATH_TX_INFO_FRAME_TYPE_INTERNAL)) @@ -2053,11 +2048,10 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq) */ if (bf->bf_isnullfunc && (ds->ds_txstat.ts_status & ATH9K_TX_ACKED)) { - if ((sc->sc_flags & SC_OP_PS_ENABLED)) { - sc->ps_enabled = true; - ath9k_hw_setrxabort(sc->sc_ah, 1); - } else - sc->sc_flags |= SC_OP_NULLFUNC_COMPLETED; + if ((sc->ps_flags & PS_ENABLED)) + ath9k_enable_ps(sc); + else + sc->ps_flags |= PS_NULLFUNC_COMPLETED; } /* |