From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 25 Mar 2016 03:53:42 -0300 Subject: Linux-libre 4.5-gnu --- drivers/net/wireless/ath/ath9k/Kconfig | 11 +++ drivers/net/wireless/ath/ath9k/Makefile | 1 + drivers/net/wireless/ath/ath9k/ath9k.h | 23 ++++++ drivers/net/wireless/ath/ath9k/beacon.c | 3 +- drivers/net/wireless/ath/ath9k/channel.c | 56 ++++++++++--- drivers/net/wireless/ath/ath9k/common-beacon.c | 22 +---- drivers/net/wireless/ath/ath9k/eeprom.c | 74 +++++++++++++++++ drivers/net/wireless/ath/ath9k/eeprom.h | 3 + drivers/net/wireless/ath/ath9k/eeprom_4k.c | 76 ++++-------------- drivers/net/wireless/ath/ath9k/eeprom_9287.c | 68 ++++------------ drivers/net/wireless/ath/ath9k/eeprom_def.c | 61 ++++---------- drivers/net/wireless/ath/ath9k/htc_drv_main.c | 2 +- drivers/net/wireless/ath/ath9k/htc_hst.c | 2 +- drivers/net/wireless/ath/ath9k/hw.c | 11 +-- drivers/net/wireless/ath/ath9k/init.c | 1 + drivers/net/wireless/ath/ath9k/main.c | 4 + drivers/net/wireless/ath/ath9k/recv.c | 3 + drivers/net/wireless/ath/ath9k/rng.c | 107 +++++++++++++++++++++++++ drivers/net/wireless/ath/ath9k/xmit.c | 23 +++++- 19 files changed, 351 insertions(+), 200 deletions(-) create mode 100644 drivers/net/wireless/ath/ath9k/rng.c (limited to 'drivers/net/wireless/ath/ath9k') diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig index fee0cadb0..40fa915d6 100644 --- a/drivers/net/wireless/ath/ath9k/Kconfig +++ b/drivers/net/wireless/ath/ath9k/Kconfig @@ -176,3 +176,14 @@ config ATH9K_HTC_DEBUGFS depends on ATH9K_HTC && DEBUG_FS ---help--- Say Y, if you need access to ath9k_htc's statistics. + +config ATH9K_HWRNG + bool "Random number generator support" + depends on ATH9K && (HW_RANDOM = y || HW_RANDOM = ATH9K) + default y + ---help--- + This option incorporates the ADC register output as a source of + randomness into Linux entropy pool (/dev/urandom and /dev/random) + + Say Y, feeds the entropy directly from the WiFi driver to the input + pool. diff --git a/drivers/net/wireless/ath/ath9k/Makefile b/drivers/net/wireless/ath/ath9k/Makefile index ecda613c2..76f9dc375 100644 --- a/drivers/net/wireless/ath/ath9k/Makefile +++ b/drivers/net/wireless/ath/ath9k/Makefile @@ -15,6 +15,7 @@ ath9k-$(CONFIG_ATH9K_DFS_DEBUGFS) += dfs_debug.o ath9k-$(CONFIG_ATH9K_DFS_CERTIFIED) += dfs.o ath9k-$(CONFIG_ATH9K_TX99) += tx99.o ath9k-$(CONFIG_ATH9K_WOW) += wow.o +ath9k-$(CONFIG_ATH9K_HWRNG) += rng.o ath9k-$(CONFIG_ATH9K_DEBUGFS) += debug.o diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index b42f4a963..5294595da 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -23,6 +23,7 @@ #include #include #include +#include #include "common.h" #include "debug.h" @@ -981,6 +982,7 @@ struct ath_softc { struct ath_offchannel offchannel; struct ath_chanctx *next_chan; struct completion go_beacon; + struct timespec last_event_time; #endif unsigned long driver_data; @@ -1040,6 +1042,11 @@ struct ath_softc { u32 wow_intr_before_sleep; bool force_wow; #endif + +#ifdef CONFIG_ATH9K_HWRNG + u32 rng_last; + struct task_struct *rng_task; +#endif }; /********/ @@ -1062,6 +1069,22 @@ static inline int ath9k_tx99_send(struct ath_softc *sc, } #endif /* CONFIG_ATH9K_TX99 */ +/***************************/ +/* Random Number Generator */ +/***************************/ +#ifdef CONFIG_ATH9K_HWRNG +void ath9k_rng_start(struct ath_softc *sc); +void ath9k_rng_stop(struct ath_softc *sc); +#else +static inline void ath9k_rng_start(struct ath_softc *sc) +{ +} + +static inline void ath9k_rng_stop(struct ath_softc *sc) +{ +} +#endif + static inline void ath_read_cachesize(struct ath_common *common, int *csz) { common->bus_ops->read_cachesize(common, csz); diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index f50a6bc5d..5cf0cd7cb 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -148,7 +148,8 @@ static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw, ath_assign_seq(common, skb); - if (vif->p2p) + /* Always assign NOA attr when MCC enabled */ + if (ath9k_is_chanctx_enabled()) ath9k_beacon_add_noa(sc, avp, skb); bf->bf_buf_addr = dma_map_single(sc->dev, skb->data, diff --git a/drivers/net/wireless/ath/ath9k/channel.c b/drivers/net/wireless/ath/ath9k/channel.c index 90f5773a1..50e614b91 100644 --- a/drivers/net/wireless/ath/ath9k/channel.c +++ b/drivers/net/wireless/ath/ath9k/channel.c @@ -226,6 +226,20 @@ static const char *chanctx_state_string(enum ath_chanctx_state state) } } +static const u32 chanctx_event_delta(struct ath_softc *sc) +{ + u64 ms; + struct timespec ts, *old; + + getrawmonotonic(&ts); + old = &sc->last_event_time; + ms = ts.tv_sec * 1000 + ts.tv_nsec / 1000000; + ms -= old->tv_sec * 1000 + old->tv_nsec / 1000000; + sc->last_event_time = ts; + + return (u32)ms; +} + void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx) { struct ath_common *common = ath9k_hw_common(sc->sc_ah); @@ -356,14 +370,16 @@ static void ath_chanctx_setup_timer(struct ath_softc *sc, u32 tsf_time) { struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_hw *ah = sc->sc_ah; + unsigned long timeout; ath9k_hw_gen_timer_start(ah, sc->p2p_ps_timer, tsf_time, 1000000); tsf_time -= ath9k_hw_gettsf32(ah); - tsf_time = msecs_to_jiffies(tsf_time / 1000) + 1; - mod_timer(&sc->sched.timer, jiffies + tsf_time); + timeout = msecs_to_jiffies(tsf_time / 1000) + 1; + mod_timer(&sc->sched.timer, jiffies + timeout); ath_dbg(common, CHAN_CTX, - "Setup chanctx timer with timeout: %d ms\n", jiffies_to_msecs(tsf_time)); + "Setup chanctx timer with timeout: %d (%d) ms\n", + tsf_time / 1000, jiffies_to_msecs(timeout)); } static void ath_chanctx_handle_bmiss(struct ath_softc *sc, @@ -403,7 +419,7 @@ static void ath_chanctx_offchannel_noa(struct ath_softc *sc, avp->offchannel_duration = sc->sched.offchannel_duration; ath_dbg(common, CHAN_CTX, - "offchannel noa_duration: %d, noa_start: %d, noa_index: %d\n", + "offchannel noa_duration: %d, noa_start: %u, noa_index: %d\n", avp->offchannel_duration, avp->offchannel_start, avp->noa_index); @@ -443,7 +459,7 @@ static void ath_chanctx_set_periodic_noa(struct ath_softc *sc, avp->periodic_noa = true; ath_dbg(common, CHAN_CTX, - "noa_duration: %d, noa_start: %d, noa_index: %d, periodic: %d\n", + "noa_duration: %d, noa_start: %u, noa_index: %d, periodic: %d\n", avp->noa_duration, avp->noa_start, avp->noa_index, @@ -464,7 +480,7 @@ static void ath_chanctx_set_oneshot_noa(struct ath_softc *sc, avp->noa_duration = duration + sc->sched.channel_switch_time; ath_dbg(common, CHAN_CTX, - "oneshot noa_duration: %d, noa_start: %d, noa_index: %d, periodic: %d\n", + "oneshot noa_duration: %d, noa_start: %u, noa_index: %d, periodic: %d\n", avp->noa_duration, avp->noa_start, avp->noa_index, @@ -487,10 +503,11 @@ void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif, spin_lock_bh(&sc->chan_lock); - ath_dbg(common, CHAN_CTX, "cur_chan: %d MHz, event: %s, state: %s\n", + ath_dbg(common, CHAN_CTX, "cur_chan: %d MHz, event: %s, state: %s, delta: %u ms\n", sc->cur_chan->chandef.center_freq1, chanctx_event_string(ev), - chanctx_state_string(sc->sched.state)); + chanctx_state_string(sc->sched.state), + chanctx_event_delta(sc)); switch (ev) { case ATH_CHANCTX_EVENT_BEACON_PREPARE: @@ -1099,6 +1116,7 @@ ath_chanctx_send_vif_ps_frame(struct ath_softc *sc, struct ath_vif *avp, nullfunc->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); + skb->priority = 7; skb_set_queue_mapping(skb, IEEE80211_AC_VO); if (!ieee80211_tx_prepare_skb(sc->hw, vif, skb, band, &sta)) { dev_kfree_skb_any(skb); @@ -1401,8 +1419,9 @@ void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx) static void ath9k_update_p2p_ps_timer(struct ath_softc *sc, struct ath_vif *avp) { + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_hw *ah = sc->sc_ah; - s32 tsf, target_tsf; + u32 tsf, target_tsf; if (!avp || !avp->noa.has_next_tsf) return; @@ -1414,11 +1433,17 @@ static void ath9k_update_p2p_ps_timer(struct ath_softc *sc, struct ath_vif *avp) target_tsf = avp->noa.next_tsf; if (!avp->noa.absent) target_tsf -= ATH_P2P_PS_STOP_TIME; + else + target_tsf += ATH_P2P_PS_STOP_TIME; if (target_tsf - tsf < ATH_P2P_PS_STOP_TIME) target_tsf = tsf + ATH_P2P_PS_STOP_TIME; - ath9k_hw_gen_timer_start(ah, sc->p2p_ps_timer, (u32) target_tsf, 1000000); + ath_dbg(common, CHAN_CTX, "%s absent %d tsf 0x%08X next_tsf 0x%08X (%dms)\n", + __func__, avp->noa.absent, tsf, target_tsf, + (target_tsf - tsf) / 1000); + + ath9k_hw_gen_timer_start(ah, sc->p2p_ps_timer, target_tsf, 1000000); } static void ath9k_update_p2p_ps(struct ath_softc *sc, struct ieee80211_vif *vif) @@ -1433,6 +1458,10 @@ static void ath9k_update_p2p_ps(struct ath_softc *sc, struct ieee80211_vif *vif) return; sc->p2p_ps_vif = avp; + + if (sc->ps_flags & PS_BEACON_SYNC) + return; + tsf = ath9k_hw_gettsf32(sc->sc_ah); ieee80211_parse_p2p_noa(&vif->bss_conf.p2p_noa_attr, &avp->noa, tsf); ath9k_update_p2p_ps_timer(sc, avp); @@ -1495,6 +1524,8 @@ void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp, noa->index = avp->noa_index; noa->oppps_ctwindow = ath9k_get_ctwin(sc, avp); + if (noa->oppps_ctwindow) + noa->oppps_ctwindow |= BIT(7); if (avp->noa_duration) { if (avp->periodic_noa) { @@ -1536,6 +1567,8 @@ void ath9k_p2p_ps_timer(void *priv) tsf = ath9k_hw_gettsf32(sc->sc_ah); if (!avp->noa.absent) tsf += ATH_P2P_PS_STOP_TIME; + else + tsf -= ATH_P2P_PS_STOP_TIME; if (!avp->noa.has_next_tsf || avp->noa.next_tsf - tsf > BIT(31)) @@ -1571,8 +1604,7 @@ void ath9k_p2p_bss_info_changed(struct ath_softc *sc, spin_lock_bh(&sc->sc_pcu_lock); spin_lock_irqsave(&sc->sc_pm_lock, flags); - if (!(sc->ps_flags & PS_BEACON_SYNC)) - ath9k_update_p2p_ps(sc, vif); + ath9k_update_p2p_ps(sc, vif); spin_unlock_irqrestore(&sc->sc_pm_lock, flags); spin_unlock_bh(&sc->sc_pcu_lock); } diff --git a/drivers/net/wireless/ath/ath9k/common-beacon.c b/drivers/net/wireless/ath/ath9k/common-beacon.c index 6ad44470d..01d6d3205 100644 --- a/drivers/net/wireless/ath/ath9k/common-beacon.c +++ b/drivers/net/wireless/ath/ath9k/common-beacon.c @@ -18,30 +18,16 @@ #define FUDGE 2 -/* Calculate the modulo of a 64 bit TSF snapshot with a TU divisor */ -static u32 ath9k_mod_tsf64_tu(u64 tsf, u32 div_tu) -{ - u32 tsf_mod, tsf_hi, tsf_lo, mod_hi, mod_lo; - - tsf_mod = tsf & (BIT(10) - 1); - tsf_hi = tsf >> 32; - tsf_lo = ((u32) tsf) >> 10; - - mod_hi = tsf_hi % div_tu; - mod_lo = ((mod_hi << 22) + tsf_lo) % div_tu; - - return (mod_lo << 10) | tsf_mod; -} - static u32 ath9k_get_next_tbtt(struct ath_hw *ah, u64 tsf, unsigned int interval) { - unsigned int offset; + unsigned int offset, divisor; tsf += TU_TO_USEC(FUDGE + ah->config.sw_beacon_response_time); - offset = ath9k_mod_tsf64_tu(tsf, interval); + divisor = TU_TO_USEC(interval); + div_u64_rem(tsf, divisor, &offset); - return (u32) tsf + TU_TO_USEC(interval) - offset; + return (u32) tsf + divisor - offset; } /* diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c index cc81482c9..73fb4232f 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.c +++ b/drivers/net/wireless/ath/ath9k/eeprom.c @@ -138,6 +138,80 @@ bool ath9k_hw_nvram_read(struct ath_hw *ah, u32 off, u16 *data) return ret; } +int ath9k_hw_nvram_swap_data(struct ath_hw *ah, bool *swap_needed, int size) +{ + u16 magic; + u16 *eepdata; + int i; + struct ath_common *common = ath9k_hw_common(ah); + + if (!ath9k_hw_nvram_read(ah, AR5416_EEPROM_MAGIC_OFFSET, &magic)) { + ath_err(common, "Reading Magic # failed\n"); + return -EIO; + } + + *swap_needed = false; + if (swab16(magic) == AR5416_EEPROM_MAGIC) { + if (ah->ah_flags & AH_NO_EEP_SWAP) { + ath_info(common, + "Ignoring endianness difference in EEPROM magic bytes.\n"); + } else { + *swap_needed = true; + } + } else if (magic != AR5416_EEPROM_MAGIC) { + if (ath9k_hw_use_flash(ah)) + return 0; + + ath_err(common, + "Invalid EEPROM Magic (0x%04x).\n", magic); + return -EINVAL; + } + + eepdata = (u16 *)(&ah->eeprom); + + if (*swap_needed) { + ath_dbg(common, EEPROM, + "EEPROM Endianness is not native.. Changing.\n"); + + for (i = 0; i < size; i++) + eepdata[i] = swab16(eepdata[i]); + } + + return 0; +} + +bool ath9k_hw_nvram_validate_checksum(struct ath_hw *ah, int size) +{ + u32 i, sum = 0; + u16 *eepdata = (u16 *)(&ah->eeprom); + struct ath_common *common = ath9k_hw_common(ah); + + for (i = 0; i < size; i++) + sum ^= eepdata[i]; + + if (sum != 0xffff) { + ath_err(common, "Bad EEPROM checksum 0x%x\n", sum); + return false; + } + + return true; +} + +bool ath9k_hw_nvram_check_version(struct ath_hw *ah, int version, int minrev) +{ + struct ath_common *common = ath9k_hw_common(ah); + + if (ah->eep_ops->get_eeprom_ver(ah) != version || + ah->eep_ops->get_eeprom_rev(ah) < minrev) { + ath_err(common, "Bad EEPROM VER 0x%04x or REV 0x%04x\n", + ah->eep_ops->get_eeprom_ver(ah), + ah->eep_ops->get_eeprom_rev(ah)); + return false; + } + + return true; +} + void ath9k_hw_fill_vpd_table(u8 pwrMin, u8 pwrMax, u8 *pPwrList, u8 *pVpdList, u16 numIntercepts, u8 *pRetVpdList) diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h index 40d4f62d0..4465c6566 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.h +++ b/drivers/net/wireless/ath/ath9k/eeprom.h @@ -664,6 +664,9 @@ int16_t ath9k_hw_interpolate(u16 target, u16 srcLeft, u16 srcRight, bool ath9k_hw_get_lower_upper_index(u8 target, u8 *pList, u16 listSize, u16 *indexL, u16 *indexR); bool ath9k_hw_nvram_read(struct ath_hw *ah, u32 off, u16 *data); +int ath9k_hw_nvram_swap_data(struct ath_hw *ah, bool *swap_needed, int size); +bool ath9k_hw_nvram_validate_checksum(struct ath_hw *ah, int size); +bool ath9k_hw_nvram_check_version(struct ath_hw *ah, int version, int minrev); void ath9k_hw_usb_gen_fill_eeprom(struct ath_hw *ah, u16 *eep_data, int eep_start_loc, int size); void ath9k_hw_fill_vpd_table(u8 pwrMin, u8 pwrMax, u8 *pPwrList, diff --git a/drivers/net/wireless/ath/ath9k/eeprom_4k.c b/drivers/net/wireless/ath/ath9k/eeprom_4k.c index 4773da6dc..5da0826bf 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c @@ -177,74 +177,30 @@ static u32 ath9k_hw_4k_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr, } #endif - -#undef SIZE_EEPROM_4K - static int ath9k_hw_4k_check_eeprom(struct ath_hw *ah) { -#define EEPROM_4K_SIZE (sizeof(struct ar5416_eeprom_4k) / sizeof(u16)) - struct ath_common *common = ath9k_hw_common(ah); struct ar5416_eeprom_4k *eep = &ah->eeprom.map4k; - u16 *eepdata, temp, magic, magic2; - u32 sum = 0, el; - bool need_swap = false; - int i, addr; + u32 el; + bool need_swap; + int i, err; - - if (!ath9k_hw_use_flash(ah)) { - if (!ath9k_hw_nvram_read(ah, AR5416_EEPROM_MAGIC_OFFSET, - &magic)) { - ath_err(common, "Reading Magic # failed\n"); - return false; - } - - ath_dbg(common, EEPROM, "Read Magic = 0x%04X\n", magic); - - if (magic != AR5416_EEPROM_MAGIC) { - magic2 = swab16(magic); - - if (magic2 == AR5416_EEPROM_MAGIC) { - need_swap = true; - eepdata = (u16 *) (&ah->eeprom); - - for (addr = 0; addr < EEPROM_4K_SIZE; addr++) { - temp = swab16(*eepdata); - *eepdata = temp; - eepdata++; - } - } else { - ath_err(common, - "Invalid EEPROM Magic. Endianness mismatch.\n"); - return -EINVAL; - } - } - } - - ath_dbg(common, EEPROM, "need_swap = %s\n", - need_swap ? "True" : "False"); + err = ath9k_hw_nvram_swap_data(ah, &need_swap, SIZE_EEPROM_4K); + if (err) + return err; if (need_swap) - el = swab16(ah->eeprom.map4k.baseEepHeader.length); - else - el = ah->eeprom.map4k.baseEepHeader.length; - - if (el > sizeof(struct ar5416_eeprom_4k)) - el = sizeof(struct ar5416_eeprom_4k) / sizeof(u16); + el = swab16(eep->baseEepHeader.length); else - el = el / sizeof(u16); + el = eep->baseEepHeader.length; - eepdata = (u16 *)(&ah->eeprom); - - for (i = 0; i < el; i++) - sum ^= *eepdata++; + el = min(el / sizeof(u16), SIZE_EEPROM_4K); + if (!ath9k_hw_nvram_validate_checksum(ah, el)) + return -EINVAL; if (need_swap) { u32 integer; u16 word; - ath_dbg(common, EEPROM, - "EEPROM Endianness is not native.. Changing\n"); - word = swab16(eep->baseEepHeader.length); eep->baseEepHeader.length = word; @@ -283,17 +239,15 @@ static int ath9k_hw_4k_check_eeprom(struct ath_hw *ah) } } - if (sum != 0xffff || ah->eep_ops->get_eeprom_ver(ah) != AR5416_EEP_VER || - ah->eep_ops->get_eeprom_rev(ah) < AR5416_EEP_NO_BACK_VER) { - ath_err(common, "Bad EEPROM checksum 0x%x or revision 0x%04x\n", - sum, ah->eep_ops->get_eeprom_ver(ah)); + if (!ath9k_hw_nvram_check_version(ah, AR5416_EEP_VER, + AR5416_EEP_NO_BACK_VER)) return -EINVAL; - } return 0; -#undef EEPROM_4K_SIZE } +#undef SIZE_EEPROM_4K + static u32 ath9k_hw_4k_get_eeprom(struct ath_hw *ah, enum eeprom_param param) { diff --git a/drivers/net/wireless/ath/ath9k/eeprom_9287.c b/drivers/net/wireless/ath/ath9k/eeprom_9287.c index 6ca33dfde..1a019a39e 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c @@ -177,59 +177,24 @@ static u32 ath9k_hw_ar9287_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr, static int ath9k_hw_ar9287_check_eeprom(struct ath_hw *ah) { - u32 sum = 0, el, integer; - u16 temp, word, magic, magic2, *eepdata; - int i, addr; - bool need_swap = false; + u32 el, integer; + u16 word; + int i, err; + bool need_swap; struct ar9287_eeprom *eep = &ah->eeprom.map9287; - struct ath_common *common = ath9k_hw_common(ah); - - if (!ath9k_hw_use_flash(ah)) { - if (!ath9k_hw_nvram_read(ah, AR5416_EEPROM_MAGIC_OFFSET, - &magic)) { - ath_err(common, "Reading Magic # failed\n"); - return false; - } - - ath_dbg(common, EEPROM, "Read Magic = 0x%04X\n", magic); - - if (magic != AR5416_EEPROM_MAGIC) { - magic2 = swab16(magic); - - if (magic2 == AR5416_EEPROM_MAGIC) { - need_swap = true; - eepdata = (u16 *)(&ah->eeprom); - - for (addr = 0; addr < SIZE_EEPROM_AR9287; addr++) { - temp = swab16(*eepdata); - *eepdata = temp; - eepdata++; - } - } else { - ath_err(common, - "Invalid EEPROM Magic. Endianness mismatch.\n"); - return -EINVAL; - } - } - } - ath_dbg(common, EEPROM, "need_swap = %s\n", - need_swap ? "True" : "False"); + err = ath9k_hw_nvram_swap_data(ah, &need_swap, SIZE_EEPROM_AR9287); + if (err) + return err; if (need_swap) - el = swab16(ah->eeprom.map9287.baseEepHeader.length); - else - el = ah->eeprom.map9287.baseEepHeader.length; - - if (el > sizeof(struct ar9287_eeprom)) - el = sizeof(struct ar9287_eeprom) / sizeof(u16); + el = swab16(eep->baseEepHeader.length); else - el = el / sizeof(u16); - - eepdata = (u16 *)(&ah->eeprom); + el = eep->baseEepHeader.length; - for (i = 0; i < el; i++) - sum ^= *eepdata++; + el = min(el / sizeof(u16), SIZE_EEPROM_AR9287); + if (!ath9k_hw_nvram_validate_checksum(ah, el)) + return -EINVAL; if (need_swap) { word = swab16(eep->baseEepHeader.length); @@ -270,16 +235,15 @@ static int ath9k_hw_ar9287_check_eeprom(struct ath_hw *ah) } } - if (sum != 0xffff || ah->eep_ops->get_eeprom_ver(ah) != AR9287_EEP_VER - || ah->eep_ops->get_eeprom_rev(ah) < AR5416_EEP_NO_BACK_VER) { - ath_err(common, "Bad EEPROM checksum 0x%x or revision 0x%04x\n", - sum, ah->eep_ops->get_eeprom_ver(ah)); + if (!ath9k_hw_nvram_check_version(ah, AR9287_EEP_VER, + AR5416_EEP_NO_BACK_VER)) return -EINVAL; - } return 0; } +#undef SIZE_EEPROM_AR9287 + static u32 ath9k_hw_ar9287_get_eeprom(struct ath_hw *ah, enum eeprom_param param) { diff --git a/drivers/net/wireless/ath/ath9k/eeprom_def.c b/drivers/net/wireless/ath/ath9k/eeprom_def.c index 056f516bf..959682f79 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_def.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c @@ -126,8 +126,6 @@ static bool ath9k_hw_def_fill_eeprom(struct ath_hw *ah) return __ath9k_hw_def_fill_eeprom(ah); } -#undef SIZE_EEPROM_DEF - #if defined(CONFIG_ATH9K_DEBUGFS) || defined(CONFIG_ATH9K_HTC_DEBUGFS) static u32 ath9k_def_dump_modal_eeprom(char *buf, u32 len, u32 size, struct modal_eep_header *modal_hdr) @@ -257,59 +255,31 @@ static u32 ath9k_hw_def_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr, } #endif - static int ath9k_hw_def_check_eeprom(struct ath_hw *ah) { struct ar5416_eeprom_def *eep = &ah->eeprom.def; struct ath_common *common = ath9k_hw_common(ah); - u16 *eepdata, temp, magic; - u32 sum = 0, el; - bool need_swap = false; - int i, addr, size; - - if (!ath9k_hw_nvram_read(ah, AR5416_EEPROM_MAGIC_OFFSET, &magic)) { - ath_err(common, "Reading Magic # failed\n"); - return false; - } - - if (swab16(magic) == AR5416_EEPROM_MAGIC && - !(ah->ah_flags & AH_NO_EEP_SWAP)) { - size = sizeof(struct ar5416_eeprom_def); - need_swap = true; - eepdata = (u16 *) (&ah->eeprom); - - for (addr = 0; addr < size / sizeof(u16); addr++) { - temp = swab16(*eepdata); - *eepdata = temp; - eepdata++; - } - } + u32 el; + bool need_swap; + int i, err; - ath_dbg(common, EEPROM, "need_swap = %s\n", - need_swap ? "True" : "False"); + err = ath9k_hw_nvram_swap_data(ah, &need_swap, SIZE_EEPROM_DEF); + if (err) + return err; if (need_swap) - el = swab16(ah->eeprom.def.baseEepHeader.length); + el = swab16(eep->baseEepHeader.length); else - el = ah->eeprom.def.baseEepHeader.length; + el = eep->baseEepHeader.length; - if (el > sizeof(struct ar5416_eeprom_def)) - el = sizeof(struct ar5416_eeprom_def) / sizeof(u16); - else - el = el / sizeof(u16); - - eepdata = (u16 *)(&ah->eeprom); - - for (i = 0; i < el; i++) - sum ^= *eepdata++; + el = min(el / sizeof(u16), SIZE_EEPROM_DEF); + if (!ath9k_hw_nvram_validate_checksum(ah, el)) + return -EINVAL; if (need_swap) { u32 integer, j; u16 word; - ath_dbg(common, EEPROM, - "EEPROM Endianness is not native.. Changing.\n"); - word = swab16(eep->baseEepHeader.length); eep->baseEepHeader.length = word; @@ -356,12 +326,9 @@ static int ath9k_hw_def_check_eeprom(struct ath_hw *ah) } } - if (sum != 0xffff || ah->eep_ops->get_eeprom_ver(ah) != AR5416_EEP_VER || - ah->eep_ops->get_eeprom_rev(ah) < AR5416_EEP_NO_BACK_VER) { - ath_err(common, "Bad EEPROM checksum 0x%x or revision 0x%04x\n", - sum, ah->eep_ops->get_eeprom_ver(ah)); + if (!ath9k_hw_nvram_check_version(ah, AR5416_EEP_VER, + AR5416_EEP_NO_BACK_VER)) return -EINVAL; - } /* Enable fixup for AR_AN_TOP2 if necessary */ if ((ah->hw_version.devid == AR9280_DEVID_PCI) && @@ -376,6 +343,8 @@ static int ath9k_hw_def_check_eeprom(struct ath_hw *ah) return 0; } +#undef SIZE_EEPROM_DEF + static u32 ath9k_hw_def_get_eeprom(struct ath_hw *ah, enum eeprom_param param) { diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index a680a970b..fe1fd1a5a 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -834,7 +834,7 @@ void ath9k_htc_ani_work(struct work_struct *work) if (longcal || shortcal) common->ani.caldone = ath9k_hw_calibrate(ah, ah->curchan, - ah->rxchainmask, longcal); + ah->rxchainmask, longcal) > 0; ath9k_htc_ps_restore(priv); } diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c index 2294709ee..fd85f996c 100644 --- a/drivers/net/wireless/ath/ath9k/htc_hst.c +++ b/drivers/net/wireless/ath/ath9k/htc_hst.c @@ -414,7 +414,7 @@ void ath9k_htc_rx_msg(struct htc_target *htc_handle, return; } - if (epid >= ENDPOINT_MAX) { + if (epid < 0 || epid >= ENDPOINT_MAX) { if (pipe_id != USB_REG_IN_PIPE) dev_kfree_skb_any(skb); else diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 41382f89a..257f46ed4 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -2299,10 +2299,10 @@ void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah, else nextTbtt = bs->bs_nexttbtt; - ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim); - ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt); - ath_dbg(common, BEACON, "beacon period %d\n", beaconintval); - ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod); + ath_dbg(common, BEACON, "next DTIM %u\n", bs->bs_nextdtim); + ath_dbg(common, BEACON, "next beacon %u\n", nextTbtt); + ath_dbg(common, BEACON, "beacon period %u\n", beaconintval); + ath_dbg(common, BEACON, "DTIM period %u\n", dtimperiod); ENABLE_REGWRITE_BUFFER(ah); @@ -2761,9 +2761,6 @@ void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits) ENABLE_REGWRITE_BUFFER(ah); - if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) - bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER; - REG_WRITE(ah, AR_RX_FILTER, bits); phybits = 0; diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 2e2b92ba9..ab7a1ac37 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -828,6 +828,7 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) ieee80211_hw_set(hw, RX_INCLUDES_FCS); ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING); ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); + ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); if (ath9k_ps_enable) ieee80211_hw_set(hw, SUPPORTS_PS); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index d184e682e..c1b33fdcc 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -739,6 +739,8 @@ static int ath9k_start(struct ieee80211_hw *hw) ath9k_ps_restore(sc); + ath9k_rng_start(sc); + return 0; } @@ -828,6 +830,8 @@ static void ath9k_stop(struct ieee80211_hw *hw) ath9k_deinit_channel_context(sc); + ath9k_rng_stop(sc); + mutex_lock(&sc->mutex); ath_cancel_work(sc); diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 994daf6c6..32160fca8 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -424,6 +424,9 @@ u32 ath_calcrxfilter(struct ath_softc *sc) AR_SREV_9561(sc->sc_ah)) rfilt |= ATH9K_RX_FILTER_4ADDRESS; + if (AR_SREV_9462(sc->sc_ah) || AR_SREV_9565(sc->sc_ah)) + rfilt |= ATH9K_RX_FILTER_CONTROL_WRAPPER; + if (ath9k_is_chanctx_enabled() && test_bit(ATH_OP_SCANNING, &common->op_flags)) rfilt |= ATH9K_RX_FILTER_BEACON; diff --git a/drivers/net/wireless/ath/ath9k/rng.c b/drivers/net/wireless/ath/ath9k/rng.c new file mode 100644 index 000000000..c9cb2aad7 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/rng.c @@ -0,0 +1,107 @@ +/* + * Copyright (c) 2015 Qualcomm Atheros, 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 +#include + +#include "ath9k.h" +#include "hw.h" +#include "ar9003_phy.h" + +#define ATH9K_RNG_BUF_SIZE 320 +#define ATH9K_RNG_ENTROPY(x) (((x) * 8 * 320) >> 10) /* quality: 320/1024 */ + +static int ath9k_rng_data_read(struct ath_softc *sc, u32 *buf, u32 buf_size) +{ + int i, j; + u32 v1, v2, rng_last = sc->rng_last; + struct ath_hw *ah = sc->sc_ah; + + ath9k_ps_wakeup(sc); + + REG_RMW_FIELD(ah, AR_PHY_TEST, AR_PHY_TEST_BBB_OBS_SEL, 1); + REG_CLR_BIT(ah, AR_PHY_TEST, AR_PHY_TEST_RX_OBS_SEL_BIT5); + REG_RMW_FIELD(ah, AR_PHY_TEST_CTL_STATUS, AR_PHY_TEST_CTL_RX_OBS_SEL, 0); + + for (i = 0, j = 0; i < buf_size; i++) { + v1 = REG_READ(ah, AR_PHY_TST_ADC) & 0xffff; + v2 = REG_READ(ah, AR_PHY_TST_ADC) & 0xffff; + + /* wait for data ready */ + if (v1 && v2 && rng_last != v1 && v1 != v2 && v1 != 0xffff && + v2 != 0xffff) + buf[j++] = (v1 << 16) | v2; + + rng_last = v2; + } + + ath9k_ps_restore(sc); + + sc->rng_last = rng_last; + + return j << 2; +} + +static int ath9k_rng_kthread(void *data) +{ + int bytes_read; + struct ath_softc *sc = data; + u32 *rng_buf; + + rng_buf = kmalloc_array(ATH9K_RNG_BUF_SIZE, sizeof(u32), GFP_KERNEL); + if (!rng_buf) + goto out; + + while (!kthread_should_stop()) { + bytes_read = ath9k_rng_data_read(sc, rng_buf, + ATH9K_RNG_BUF_SIZE); + if (unlikely(!bytes_read)) { + msleep_interruptible(10); + continue; + } + + /* sleep until entropy bits under write_wakeup_threshold */ + add_hwgenerator_randomness((void *)rng_buf, bytes_read, + ATH9K_RNG_ENTROPY(bytes_read)); + } + + kfree(rng_buf); +out: + sc->rng_task = NULL; + + return 0; +} + +void ath9k_rng_start(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + if (sc->rng_task) + return; + + if (!AR_SREV_9300_20_OR_LATER(ah)) + return; + + sc->rng_task = kthread_run(ath9k_rng_kthread, sc, "ath9k-hwrng"); + if (IS_ERR(sc->rng_task)) + sc->rng_task = NULL; +} + +void ath9k_rng_stop(struct ath_softc *sc) +{ + if (sc->rng_task) + kthread_stop(sc->rng_task); +} diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 3e3dac3d7..fe795fc52 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1473,11 +1473,14 @@ static bool ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq, int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid, u16 *ssn) { + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_atx_tid *txtid; struct ath_txq *txq; struct ath_node *an; u8 density; + ath_dbg(common, XMIT, "%s called\n", __func__); + an = (struct ath_node *)sta->drv_priv; txtid = ATH_AN_2_TID(an, tid); txq = txtid->txq; @@ -1512,10 +1515,13 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid) { + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_node *an = (struct ath_node *)sta->drv_priv; struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid); struct ath_txq *txq = txtid->txq; + ath_dbg(common, XMIT, "%s called\n", __func__); + ath_txq_lock(sc, txq); txtid->active = false; ath_tx_flush_tid(sc, txtid); @@ -1526,11 +1532,14 @@ void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid) void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc, struct ath_node *an) { + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_atx_tid *tid; struct ath_txq *txq; bool buffered; int tidno; + ath_dbg(common, XMIT, "%s called\n", __func__); + for (tidno = 0, tid = &an->tid[tidno]; tidno < IEEE80211_NUM_TIDS; tidno++, tid++) { @@ -1555,10 +1564,13 @@ void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc, void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an) { + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_atx_tid *tid; struct ath_txq *txq; int tidno; + ath_dbg(common, XMIT, "%s called\n", __func__); + for (tidno = 0, tid = &an->tid[tidno]; tidno < IEEE80211_NUM_TIDS; tidno++, tid++) { @@ -1579,10 +1591,13 @@ void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an) void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tidno) { + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_atx_tid *tid; struct ath_node *an; struct ath_txq *txq; + ath_dbg(common, XMIT, "%s called\n", __func__); + an = (struct ath_node *)sta->drv_priv; tid = ATH_AN_2_TID(an, tidno); txq = tid->txq; @@ -2316,6 +2331,12 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, queue = ieee80211_is_data_present(hdr->frame_control); + /* If chanctx, queue all null frames while NOA could be there */ + if (ath9k_is_chanctx_enabled() && + ieee80211_is_nullfunc(hdr->frame_control) && + !txctl->force_channel) + queue = true; + /* Force queueing of all frames that belong to a virtual interface on * a different channel context, to ensure that they are sent on the * correct channel. @@ -2894,7 +2915,7 @@ int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb, if (skb_headroom(skb) < padsize) { ath_dbg(common, XMIT, "tx99 padding failed\n"); - return -EINVAL; + return -EINVAL; } skb_push(skb, padsize); -- cgit v1.2.3-54-g00ecf